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fix: replace gomatrix client with mautrix-go, fixes #1527

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This commit is contained in:
Arturo Guzman
2025-11-08 15:19:50 +00:00
committed by artgp
parent d8684b97a1
commit f14c4438e6
233 changed files with 30797 additions and 3255 deletions
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28
go.mod
View File

@@ -23,7 +23,6 @@ require (
github.com/hashicorp/nomad/api v0.0.0-20250812204832-62b195aaa535 // v1.10.4
github.com/jedib0t/go-pretty/v6 v6.6.8
github.com/matcornic/hermes/v2 v2.1.0
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16
github.com/microcosm-cc/bluemonday v1.0.27
github.com/moby/buildkit v0.23.2
github.com/nlopes/slack v0.6.0
@@ -40,18 +39,20 @@ require (
github.com/tidwall/pretty v1.2.1
go.etcd.io/bbolt v1.4.3
go.podman.io/image/v5 v5.37.0
golang.org/x/mod v0.27.0
golang.org/x/sys v0.35.0
golang.org/x/mod v0.29.0
golang.org/x/sys v0.38.0
google.golang.org/grpc v1.74.2
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1
google.golang.org/protobuf v1.36.8
google.golang.org/protobuf v1.36.10
gopkg.in/yaml.v2 v2.4.0
k8s.io/api v0.33.3
k8s.io/apimachinery v0.33.3
k8s.io/client-go v0.33.3
maunium.net/go/mautrix v0.25.2
)
require (
filippo.io/edwards25519 v1.1.0 // indirect
github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161 // indirect
github.com/BurntSushi/toml v1.5.0 // indirect
github.com/Masterminds/semver v1.5.0 // indirect
@@ -104,8 +105,8 @@ require (
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
github.com/leodido/go-urn v1.4.0 // indirect
github.com/mailru/easyjson v0.7.7 // indirect
github.com/mattn/go-colorable v0.1.13 // indirect
github.com/mattn/go-isatty v0.0.19 // indirect
github.com/mattn/go-colorable v0.1.14 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/mattn/go-runewidth v0.0.16 // indirect
github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b // indirect
github.com/mitchellh/go-homedir v1.1.0 // indirect
@@ -124,22 +125,27 @@ require (
github.com/rivo/uniseg v0.4.7 // indirect
github.com/spf13/pflag v1.0.6 // indirect
github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf // indirect
github.com/tidwall/gjson v1.18.0 // indirect
github.com/tidwall/match v1.2.0 // indirect
github.com/tidwall/sjson v1.2.5 // indirect
github.com/tonistiigi/go-csvvalue v0.0.0-20240814133006-030d3b2625d0 // indirect
github.com/vanng822/css v0.0.0-20190504095207-a21e860bcd04 // indirect
github.com/vanng822/go-premailer v0.0.0-20191214114701-be27abe028fe // indirect
github.com/x448/float16 v0.8.4 // indirect
go.mau.fi/util v0.9.2 // indirect
go.opentelemetry.io/auto/sdk v1.1.0 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
go.opentelemetry.io/otel v1.36.0 // indirect
go.opentelemetry.io/otel/metric v1.36.0 // indirect
go.opentelemetry.io/otel/trace v1.36.0 // indirect
go.podman.io/storage v1.60.0 // indirect
golang.org/x/crypto v0.41.0 // indirect
golang.org/x/net v0.43.0 // indirect
golang.org/x/crypto v0.43.0 // indirect
golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 // indirect
golang.org/x/net v0.46.0 // indirect
golang.org/x/oauth2 v0.30.0 // indirect
golang.org/x/sync v0.16.0 // indirect
golang.org/x/term v0.34.0 // indirect
golang.org/x/text v0.28.0 // indirect
golang.org/x/sync v0.17.0 // indirect
golang.org/x/term v0.36.0 // indirect
golang.org/x/text v0.30.0 // indirect
golang.org/x/time v0.11.0 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20250528174236-200df99c418a // indirect
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc // indirect

61
go.sum
View File

@@ -1,5 +1,7 @@
dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA=
filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4=
github.com/AlecAivazis/survey/v2 v2.3.7 h1:6I/u8FvytdGsgonrYsVn2t8t4QiRnh6QSTqkkhIiSjQ=
github.com/AlecAivazis/survey/v2 v2.3.7/go.mod h1:xUTIdE4KCOIjsBAE1JYsUPoCqYdZ1reCfTwbto0Fduo=
github.com/Azure/go-ansiterm v0.0.0-20230124172434-306776ec8161 h1:L/gRVlceqvL25UVaW/CKtUDjefjrs0SPonmDGUVOYP0=
@@ -218,15 +220,15 @@ github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0
github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
github.com/matcornic/hermes/v2 v2.1.0 h1:9TDYFBPFv6mcXanaDmRDEp/RTWj0dTTi+LpFnnnfNWc=
github.com/matcornic/hermes/v2 v2.1.0/go.mod h1:2+ziJeoyRfaLiATIL8VZ7f9hpzH4oDHqTmn0bhrsgVI=
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16 h1:ZtO5uywdd5dLDCud4r0r55eP4j9FuUNpl60Gmntcop4=
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16/go.mod h1:/gBX06Kw0exX1HrwmoBibFA98yBk/jxKpGVeyQbff+s=
github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
github.com/mattn/go-colorable v0.1.14 h1:9A9LHSqF/7dyVVX6g0U9cwm9pG3kP9gSzcuIPHPsaIE=
github.com/mattn/go-colorable v0.1.14/go.mod h1:6LmQG8QLFO4G5z1gPvYEzlUgJ2wF+stgPZH1UqBm1s8=
github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
github.com/mattn/go-isatty v0.0.19 h1:JITubQf0MOLdlGRuRq+jtsDlekdYPia9ZFsB8h/APPA=
github.com/mattn/go-isatty v0.0.19/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-runewidth v0.0.3/go.mod h1:LwmH8dsx7+W8Uxz3IHJYH5QSwggIsqBzpuz5H//U1FU=
github.com/mattn/go-runewidth v0.0.16 h1:E5ScNMtiwvlvB5paMFdw9p4kSQzbXFikJ5SQO6TULQc=
github.com/mattn/go-runewidth v0.0.16/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
@@ -332,8 +334,17 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
github.com/tidwall/gjson v1.14.2/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
github.com/tidwall/gjson v1.18.0 h1:FIDeeyB800efLX89e5a8Y0BNH+LOngJyGrIWxG2FKQY=
github.com/tidwall/gjson v1.18.0/go.mod h1:/wbyibRr2FHMks5tjHJ5F8dMZh3AcwJEMf5vlfC0lxk=
github.com/tidwall/match v1.1.1/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
github.com/tidwall/match v1.2.0 h1:0pt8FlkOwjN2fPt4bIl4BoNxb98gGHN2ObFEDkrfZnM=
github.com/tidwall/match v1.2.0/go.mod h1:eRSPERbgtNPcGhD8UCthc6PmLEQXEWd3PRB5JTxsfmM=
github.com/tidwall/pretty v1.2.0/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
github.com/tidwall/pretty v1.2.1 h1:qjsOFOWWQl+N3RsoF5/ssm1pHmJJwhjlSbZ51I6wMl4=
github.com/tidwall/pretty v1.2.1/go.mod h1:ITEVvHYasfjBbM0u2Pg8T2nJnzm8xPwvNhhsoaGGjNU=
github.com/tidwall/sjson v1.2.5 h1:kLy8mja+1c9jlljvWTlSazM7cKDRfJuR/bOJhcY5NcY=
github.com/tidwall/sjson v1.2.5/go.mod h1:Fvgq9kS/6ociJEDnK0Fk1cpYF4FIW6ZF7LAe+6jwd28=
github.com/tonistiigi/go-csvvalue v0.0.0-20240814133006-030d3b2625d0 h1:2f304B10LaZdB8kkVEaoXvAMVan2tl9AiK4G0odjQtE=
github.com/tonistiigi/go-csvvalue v0.0.0-20240814133006-030d3b2625d0/go.mod h1:278M4p8WsNh3n4a1eqiFcV2FGk7wE5fwUpUom9mK9lE=
github.com/ulikunitz/xz v0.5.15 h1:9DNdB5s+SgV3bQ2ApL10xRc35ck0DuIX/isZvIk+ubY=
@@ -351,6 +362,8 @@ github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9dec
github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
go.etcd.io/bbolt v1.4.3 h1:dEadXpI6G79deX5prL3QRNP6JB8UxVkqo4UPnHaNXJo=
go.etcd.io/bbolt v1.4.3/go.mod h1:tKQlpPaYCVFctUIgFKFnAlvbmB3tpy1vkTnDWohtc0E=
go.mau.fi/util v0.9.2 h1:+S4Z03iCsGqU2WY8X2gySFsFjaLlUHFRDVCYvVwynKM=
go.mau.fi/util v0.9.2/go.mod h1:055elBBCJSdhRsmub7ci9hXZPgGr1U6dYg44cSgRgoU=
go.opentelemetry.io/auto/sdk v1.1.0 h1:cH53jehLUN6UFLY71z+NDOiNJqDdPRaXzTel0sJySYA=
go.opentelemetry.io/auto/sdk v1.1.0/go.mod h1:3wSPjt5PWp2RhlCcmmOial7AvC4DQqZb7a7wCow3W8A=
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 h1:sbiXRNDSWJOTobXh5HyQKjq6wUC5tNybqjIqDpAY4CU=
@@ -382,14 +395,16 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.41.0 h1:WKYxWedPGCTVVl5+WHSSrOBT0O8lx32+zxmHxijgXp4=
golang.org/x/crypto v0.41.0/go.mod h1:pO5AFd7FA68rFak7rOAGVuygIISepHftHnr8dr6+sUc=
golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546 h1:mgKeJMpvi0yx/sU5GsxQ7p6s2wtOnGAHZWCHUM4KGzY=
golang.org/x/exp v0.0.0-20251023183803-a4bb9ffd2546/go.mod h1:j/pmGrbnkbPtQfxEe5D0VQhZC6qKbfKifgD0oM7sR70=
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
golang.org/x/mod v0.29.0 h1:HV8lRxZC4l2cr3Zq1LvtOsi/ThTgWnUk/y64QSs8GwA=
golang.org/x/mod v0.29.0/go.mod h1:NyhrlYXJ2H4eJiRy/WDBO6HMqZQ6q9nk4JzS3NuCK+w=
golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
@@ -402,8 +417,8 @@ golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug
golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
golang.org/x/net v0.9.0/go.mod h1:d48xBJpPfHeWQsugry2m+kC02ZBRGRgulfHnEXEuWns=
golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
golang.org/x/oauth2 v0.30.0 h1:dnDm7JmhM45NNpd8FDDeLhK6FwqbOf4MLCM9zb1BOHI=
golang.org/x/oauth2 v0.30.0/go.mod h1:B++QgG3ZKulg6sRPGD/mqlHQs5rB3Ml9erfeDY7xKlU=
golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -411,8 +426,8 @@ golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJ
golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
golang.org/x/sync v0.17.0 h1:l60nONMj9l5drqw6jlhIELNv9I0A4OFgRsG9k2oT9Ug=
golang.org/x/sync v0.17.0/go.mod h1:9KTHXmSnoGruLpwFjVSX0lNNA75CykiMECbovNTZqGI=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190225065934-cc5685c2db12/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
@@ -432,14 +447,14 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
golang.org/x/term v0.7.0/go.mod h1:P32HKFT3hSsZrRxla30E9HqToFYAQPCMs/zFMBUFqPY=
golang.org/x/term v0.34.0 h1:O/2T7POpk0ZZ7MAzMeWFSg6S5IpWd/RXDlM9hgM3DR4=
golang.org/x/term v0.34.0/go.mod h1:5jC53AEywhIVebHgPVeg0mj8OD3VO9OzclacVrqpaAw=
golang.org/x/term v0.36.0 h1:zMPR+aF8gfksFprF/Nc/rd1wRS1EI6nDBGyWAvDzx2Q=
golang.org/x/term v0.36.0/go.mod h1:Qu394IJq6V6dCBRgwqshf3mPF85AqzYEzofzRdZkWss=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -447,8 +462,8 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
golang.org/x/text v0.30.0 h1:yznKA/E9zq54KzlzBEAWn1NXSQ8DIp/NYMy88xJjl4k=
golang.org/x/text v0.30.0/go.mod h1:yDdHFIX9t+tORqspjENWgzaCVXgk0yYnYuSZ8UzzBVM=
golang.org/x/time v0.11.0 h1:/bpjEDfN9tkoN/ryeYHnv5hcMlc8ncjMcM4XBk5NWV0=
golang.org/x/time v0.11.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
@@ -457,8 +472,8 @@ golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roY
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
golang.org/x/tools v0.35.0 h1:mBffYraMEf7aa0sB+NuKnuCy8qI/9Bughn8dC2Gu5r0=
golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
golang.org/x/tools v0.38.0 h1:Hx2Xv8hISq8Lm16jvBZ2VQf+RLmbd7wVUsALibYI/IQ=
golang.org/x/tools v0.38.0/go.mod h1:yEsQ/d/YK8cjh0L6rZlY8tgtlKiBNTL14pGDJPJpYQs=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -472,8 +487,8 @@ google.golang.org/grpc v1.74.2 h1:WoosgB65DlWVC9FqI82dGsZhWFNBSLjQ84bjROOpMu4=
google.golang.org/grpc v1.74.2/go.mod h1:CtQ+BGjaAIXHs/5YS3i473GqwBBa1zGQNevxdeBEXrM=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1 h1:F29+wU6Ee6qgu9TddPgooOdaqsxTMunOoj8KA5yuS5A=
google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1/go.mod h1:5KF+wpkbTSbGcR9zteSqZV6fqFOWBl4Yde8En8MryZA=
google.golang.org/protobuf v1.36.8 h1:xHScyCOEuuwZEc6UtSOvPbAT4zRh0xcNRYekJwfqyMc=
google.golang.org/protobuf v1.36.8/go.mod h1:fuxRtAxBytpl4zzqUh6/eyUujkJdNiuEkXntxiD/uRU=
google.golang.org/protobuf v1.36.10 h1:AYd7cD/uASjIL6Q9LiTjz8JLcrh/88q5UObnmY3aOOE=
google.golang.org/protobuf v1.36.10/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc h1:2gGKlE2+asNV9m7xrywl36YYNnBG5ZQ0r/BOOxqPpmk=
gopkg.in/alexcesaro/quotedprintable.v3 v3.0.0-20150716171945-2caba252f4dc/go.mod h1:m7x9LTH6d71AHyAX77c9yqWCCa3UKHcVEj9y7hAtKDk=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -506,6 +521,8 @@ k8s.io/kube-openapi v0.0.0-20250318190949-c8a335a9a2ff h1:/usPimJzUKKu+m+TE36gUy
k8s.io/kube-openapi v0.0.0-20250318190949-c8a335a9a2ff/go.mod h1:5jIi+8yX4RIb8wk3XwBo5Pq2ccx4FP10ohkbSKCZoK8=
k8s.io/utils v0.0.0-20241104100929-3ea5e8cea738 h1:M3sRQVHv7vB20Xc2ybTt7ODCeFj6JSWYFzOFnYeS6Ro=
k8s.io/utils v0.0.0-20241104100929-3ea5e8cea738/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
maunium.net/go/mautrix v0.25.2 h1:CUG23zp754yGOTMh9Q4mVSENS9FyweE/G+6ZsPDMCUU=
maunium.net/go/mautrix v0.25.2/go.mod h1:EWgYyp2iFZP7pnSm+rufHlO8YVnA2KnoNBDpwekiAwI=
sigs.k8s.io/json v0.0.0-20241010143419-9aa6b5e7a4b3 h1:/Rv+M11QRah1itp8VhT6HoVx1Ray9eB4DBr+K+/sCJ8=
sigs.k8s.io/json v0.0.0-20241010143419-9aa6b5e7a4b3/go.mod h1:18nIHnGi6636UCz6m8i4DhaJ65T6EruyzmoQqI2BVDo=
sigs.k8s.io/randfill v0.0.0-20250304075658-069ef1bbf016/go.mod h1:XeLlZ/jmk4i1HRopwe7/aU3H5n1zNUcX6TM94b3QxOY=

37
internal/notif/matrix/client.go
View File

@@ -1,15 +1,17 @@
package matrix
import (
"context"
"fmt"
"github.com/crazy-max/diun/v4/internal/model"
"github.com/crazy-max/diun/v4/internal/msg"
"github.com/crazy-max/diun/v4/internal/notif/notifier"
"github.com/crazy-max/diun/v4/pkg/utl"
"github.com/matrix-org/gomatrix"
"github.com/pkg/errors"
"github.com/rs/zerolog/log"
"maunium.net/go/mautrix"
"maunium.net/go/mautrix/event"
)
// Client represents an active rocketchat notification object
@@ -36,12 +38,13 @@ func (c *Client) Name() string {
// Send creates and sends a matrix notification with an entry
func (c *Client) Send(entry model.NotifEntry) error {
m, err := gomatrix.NewClient(c.cfg.HomeserverURL, "", "")
ctx := context.Background()
m, err := mautrix.NewClient(c.cfg.HomeserverURL, "", "")
if err != nil {
return errors.Wrap(err, "failed to initialize Matrix client")
}
defer func() {
if _, err := m.Logout(); err != nil {
if _, err := m.Logout(ctx); err != nil {
log.Error().Err(err).Msg("Cannot logout")
}
}()
@@ -55,11 +58,11 @@ func (c *Client) Send(entry model.NotifEntry) error {
return errors.Wrap(err, "cannot retrieve password secret for Matrix notifier")
}
r, err := m.Login(&gomatrix.ReqLogin{
_, err = m.Login(ctx, &mautrix.ReqLogin{
Type: "m.login.password",
Identifier: gomatrix.UserIdentifier{
IDType: "m.id.user",
User: user,
Identifier: mautrix.UserIdentifier{
Type: "m.id.user",
User: user,
},
Password: password,
InitialDeviceDisplayName: c.meta.Name,
@@ -67,9 +70,8 @@ func (c *Client) Send(entry model.NotifEntry) error {
if err != nil {
return errors.Wrap(err, "failed to authenticate Matrix user")
}
m.SetCredentials(r.UserID, r.AccessToken)
joined, err := m.JoinRoom(c.cfg.RoomID, "", nil)
joined, err := m.JoinRoom(ctx, c.cfg.RoomID, &mautrix.ReqJoinRoom{})
if err != nil {
return errors.Wrap(err, "failed to join room")
}
@@ -93,14 +95,25 @@ func (c *Client) Send(entry model.NotifEntry) error {
return err
}
if _, err := m.SendMessageEvent(joined.RoomID, "m.room.message", gomatrix.HTMLMessage{
Body: string(msgText),
type MatrixMessage struct {
Body string `json:"body"`
MsgType string `json:"msgtype"`
Format string `json:"format"`
FormattedBody string `json:"formatted_body"`
}
eventType := event.Type{
Type: "m.room.message",
Class: event.MessageEventType,
}
if _, err := m.SendMessageEvent(ctx, joined.RoomID, eventType, MatrixMessage{
MsgType: fmt.Sprintf("m.%s", c.cfg.MsgType),
Body: string(msgText),
Format: "org.matrix.custom.html",
FormattedBody: string(msgHTML),
}); err != nil {
return errors.Wrap(err, "failed to submit message to Matrix")
}
return nil
}

2
pb/image.pb.go
View File

@@ -1,6 +1,6 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.36.8
// protoc-gen-go v1.36.10
// protoc v3.17.3
// source: image.proto

2
pb/notif.pb.go
View File

@@ -1,6 +1,6 @@
// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.36.8
// protoc-gen-go v1.36.10
// protoc v3.17.3
// source: notif.proto

27
vendor/filippo.io/edwards25519/LICENSE generated vendored Normal file
View File

@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

14
vendor/filippo.io/edwards25519/README.md generated vendored Normal file
View File

@@ -0,0 +1,14 @@
# filippo.io/edwards25519
```
import "filippo.io/edwards25519"
```
This library implements the edwards25519 elliptic curve, exposing the necessary APIs to build a wide array of higher-level primitives.
Read the docs at [pkg.go.dev/filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519).
The code is originally derived from Adam Langley's internal implementation in the Go standard library, and includes George Tankersley's [performance improvements](https://golang.org/cl/71950). It was then further developed by Henry de Valence for use in ristretto255, and was finally [merged back into the Go standard library](https://golang.org/cl/276272) as of Go 1.17. It now tracks the upstream codebase and extends it with additional functionality.
Most users don't need this package, and should instead use `crypto/ed25519` for signatures, `golang.org/x/crypto/curve25519` for Diffie-Hellman, or `github.com/gtank/ristretto255` for prime order group logic. However, for anyone currently using a fork of `crypto/internal/edwards25519`/`crypto/ed25519/internal/edwards25519` or `github.com/agl/edwards25519`, this package should be a safer, faster, and more powerful alternative.
Since this package is meant to curb proliferation of edwards25519 implementations in the Go ecosystem, it welcomes requests for new APIs or reviewable performance improvements.

20
vendor/filippo.io/edwards25519/doc.go generated vendored Normal file
View File

@@ -0,0 +1,20 @@
// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package edwards25519 implements group logic for the twisted Edwards curve
//
// -x^2 + y^2 = 1 + -(121665/121666)*x^2*y^2
//
// This is better known as the Edwards curve equivalent to Curve25519, and is
// the curve used by the Ed25519 signature scheme.
//
// Most users don't need this package, and should instead use crypto/ed25519 for
// signatures, golang.org/x/crypto/curve25519 for Diffie-Hellman, or
// github.com/gtank/ristretto255 for prime order group logic.
//
// However, developers who do need to interact with low-level edwards25519
// operations can use this package, which is an extended version of
// crypto/internal/edwards25519 from the standard library repackaged as
// an importable module.
package edwards25519

427
vendor/filippo.io/edwards25519/edwards25519.go generated vendored Normal file
View File

@@ -0,0 +1,427 @@
// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"errors"
"filippo.io/edwards25519/field"
)
// Point types.
type projP1xP1 struct {
X, Y, Z, T field.Element
}
type projP2 struct {
X, Y, Z field.Element
}
// Point represents a point on the edwards25519 curve.
//
// This type works similarly to math/big.Int, and all arguments and receivers
// are allowed to alias.
//
// The zero value is NOT valid, and it may be used only as a receiver.
type Point struct {
// Make the type not comparable (i.e. used with == or as a map key), as
// equivalent points can be represented by different Go values.
_ incomparable
// The point is internally represented in extended coordinates (X, Y, Z, T)
// where x = X/Z, y = Y/Z, and xy = T/Z per https://eprint.iacr.org/2008/522.
x, y, z, t field.Element
}
type incomparable [0]func()
func checkInitialized(points ...*Point) {
for _, p := range points {
if p.x == (field.Element{}) && p.y == (field.Element{}) {
panic("edwards25519: use of uninitialized Point")
}
}
}
type projCached struct {
YplusX, YminusX, Z, T2d field.Element
}
type affineCached struct {
YplusX, YminusX, T2d field.Element
}
// Constructors.
func (v *projP2) Zero() *projP2 {
v.X.Zero()
v.Y.One()
v.Z.One()
return v
}
// identity is the point at infinity.
var identity, _ = new(Point).SetBytes([]byte{
1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0})
// NewIdentityPoint returns a new Point set to the identity.
func NewIdentityPoint() *Point {
return new(Point).Set(identity)
}
// generator is the canonical curve basepoint. See TestGenerator for the
// correspondence of this encoding with the values in RFC 8032.
var generator, _ = new(Point).SetBytes([]byte{
0x58, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66,
0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66, 0x66})
// NewGeneratorPoint returns a new Point set to the canonical generator.
func NewGeneratorPoint() *Point {
return new(Point).Set(generator)
}
func (v *projCached) Zero() *projCached {
v.YplusX.One()
v.YminusX.One()
v.Z.One()
v.T2d.Zero()
return v
}
func (v *affineCached) Zero() *affineCached {
v.YplusX.One()
v.YminusX.One()
v.T2d.Zero()
return v
}
// Assignments.
// Set sets v = u, and returns v.
func (v *Point) Set(u *Point) *Point {
*v = *u
return v
}
// Encoding.
// Bytes returns the canonical 32-byte encoding of v, according to RFC 8032,
// Section 5.1.2.
func (v *Point) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var buf [32]byte
return v.bytes(&buf)
}
func (v *Point) bytes(buf *[32]byte) []byte {
checkInitialized(v)
var zInv, x, y field.Element
zInv.Invert(&v.z) // zInv = 1 / Z
x.Multiply(&v.x, &zInv) // x = X / Z
y.Multiply(&v.y, &zInv) // y = Y / Z
out := copyFieldElement(buf, &y)
out[31] |= byte(x.IsNegative() << 7)
return out
}
var feOne = new(field.Element).One()
// SetBytes sets v = x, where x is a 32-byte encoding of v. If x does not
// represent a valid point on the curve, SetBytes returns nil and an error and
// the receiver is unchanged. Otherwise, SetBytes returns v.
//
// Note that SetBytes accepts all non-canonical encodings of valid points.
// That is, it follows decoding rules that match most implementations in
// the ecosystem rather than RFC 8032.
func (v *Point) SetBytes(x []byte) (*Point, error) {
// Specifically, the non-canonical encodings that are accepted are
// 1) the ones where the field element is not reduced (see the
// (*field.Element).SetBytes docs) and
// 2) the ones where the x-coordinate is zero and the sign bit is set.
//
// Read more at https://hdevalence.ca/blog/2020-10-04-its-25519am,
// specifically the "Canonical A, R" section.
y, err := new(field.Element).SetBytes(x)
if err != nil {
return nil, errors.New("edwards25519: invalid point encoding length")
}
// -x² + y² = 1 + dx²y²
// x² + dx²y² = x²(dy² + 1) = y² - 1
// x² = (y² - 1) / (dy² + 1)
// u = y² - 1
y2 := new(field.Element).Square(y)
u := new(field.Element).Subtract(y2, feOne)
// v = dy² + 1
vv := new(field.Element).Multiply(y2, d)
vv = vv.Add(vv, feOne)
// x = +√(u/v)
xx, wasSquare := new(field.Element).SqrtRatio(u, vv)
if wasSquare == 0 {
return nil, errors.New("edwards25519: invalid point encoding")
}
// Select the negative square root if the sign bit is set.
xxNeg := new(field.Element).Negate(xx)
xx = xx.Select(xxNeg, xx, int(x[31]>>7))
v.x.Set(xx)
v.y.Set(y)
v.z.One()
v.t.Multiply(xx, y) // xy = T / Z
return v, nil
}
func copyFieldElement(buf *[32]byte, v *field.Element) []byte {
copy(buf[:], v.Bytes())
return buf[:]
}
// Conversions.
func (v *projP2) FromP1xP1(p *projP1xP1) *projP2 {
v.X.Multiply(&p.X, &p.T)
v.Y.Multiply(&p.Y, &p.Z)
v.Z.Multiply(&p.Z, &p.T)
return v
}
func (v *projP2) FromP3(p *Point) *projP2 {
v.X.Set(&p.x)
v.Y.Set(&p.y)
v.Z.Set(&p.z)
return v
}
func (v *Point) fromP1xP1(p *projP1xP1) *Point {
v.x.Multiply(&p.X, &p.T)
v.y.Multiply(&p.Y, &p.Z)
v.z.Multiply(&p.Z, &p.T)
v.t.Multiply(&p.X, &p.Y)
return v
}
func (v *Point) fromP2(p *projP2) *Point {
v.x.Multiply(&p.X, &p.Z)
v.y.Multiply(&p.Y, &p.Z)
v.z.Square(&p.Z)
v.t.Multiply(&p.X, &p.Y)
return v
}
// d is a constant in the curve equation.
var d, _ = new(field.Element).SetBytes([]byte{
0xa3, 0x78, 0x59, 0x13, 0xca, 0x4d, 0xeb, 0x75,
0xab, 0xd8, 0x41, 0x41, 0x4d, 0x0a, 0x70, 0x00,
0x98, 0xe8, 0x79, 0x77, 0x79, 0x40, 0xc7, 0x8c,
0x73, 0xfe, 0x6f, 0x2b, 0xee, 0x6c, 0x03, 0x52})
var d2 = new(field.Element).Add(d, d)
func (v *projCached) FromP3(p *Point) *projCached {
v.YplusX.Add(&p.y, &p.x)
v.YminusX.Subtract(&p.y, &p.x)
v.Z.Set(&p.z)
v.T2d.Multiply(&p.t, d2)
return v
}
func (v *affineCached) FromP3(p *Point) *affineCached {
v.YplusX.Add(&p.y, &p.x)
v.YminusX.Subtract(&p.y, &p.x)
v.T2d.Multiply(&p.t, d2)
var invZ field.Element
invZ.Invert(&p.z)
v.YplusX.Multiply(&v.YplusX, &invZ)
v.YminusX.Multiply(&v.YminusX, &invZ)
v.T2d.Multiply(&v.T2d, &invZ)
return v
}
// (Re)addition and subtraction.
// Add sets v = p + q, and returns v.
func (v *Point) Add(p, q *Point) *Point {
checkInitialized(p, q)
qCached := new(projCached).FromP3(q)
result := new(projP1xP1).Add(p, qCached)
return v.fromP1xP1(result)
}
// Subtract sets v = p - q, and returns v.
func (v *Point) Subtract(p, q *Point) *Point {
checkInitialized(p, q)
qCached := new(projCached).FromP3(q)
result := new(projP1xP1).Sub(p, qCached)
return v.fromP1xP1(result)
}
func (v *projP1xP1) Add(p *Point, q *projCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YplusX)
MM.Multiply(&YminusX, &q.YminusX)
TT2d.Multiply(&p.t, &q.T2d)
ZZ2.Multiply(&p.z, &q.Z)
ZZ2.Add(&ZZ2, &ZZ2)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Add(&ZZ2, &TT2d)
v.T.Subtract(&ZZ2, &TT2d)
return v
}
func (v *projP1xP1) Sub(p *Point, q *projCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, ZZ2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YminusX) // flipped sign
MM.Multiply(&YminusX, &q.YplusX) // flipped sign
TT2d.Multiply(&p.t, &q.T2d)
ZZ2.Multiply(&p.z, &q.Z)
ZZ2.Add(&ZZ2, &ZZ2)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Subtract(&ZZ2, &TT2d) // flipped sign
v.T.Add(&ZZ2, &TT2d) // flipped sign
return v
}
func (v *projP1xP1) AddAffine(p *Point, q *affineCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YplusX)
MM.Multiply(&YminusX, &q.YminusX)
TT2d.Multiply(&p.t, &q.T2d)
Z2.Add(&p.z, &p.z)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Add(&Z2, &TT2d)
v.T.Subtract(&Z2, &TT2d)
return v
}
func (v *projP1xP1) SubAffine(p *Point, q *affineCached) *projP1xP1 {
var YplusX, YminusX, PP, MM, TT2d, Z2 field.Element
YplusX.Add(&p.y, &p.x)
YminusX.Subtract(&p.y, &p.x)
PP.Multiply(&YplusX, &q.YminusX) // flipped sign
MM.Multiply(&YminusX, &q.YplusX) // flipped sign
TT2d.Multiply(&p.t, &q.T2d)
Z2.Add(&p.z, &p.z)
v.X.Subtract(&PP, &MM)
v.Y.Add(&PP, &MM)
v.Z.Subtract(&Z2, &TT2d) // flipped sign
v.T.Add(&Z2, &TT2d) // flipped sign
return v
}
// Doubling.
func (v *projP1xP1) Double(p *projP2) *projP1xP1 {
var XX, YY, ZZ2, XplusYsq field.Element
XX.Square(&p.X)
YY.Square(&p.Y)
ZZ2.Square(&p.Z)
ZZ2.Add(&ZZ2, &ZZ2)
XplusYsq.Add(&p.X, &p.Y)
XplusYsq.Square(&XplusYsq)
v.Y.Add(&YY, &XX)
v.Z.Subtract(&YY, &XX)
v.X.Subtract(&XplusYsq, &v.Y)
v.T.Subtract(&ZZ2, &v.Z)
return v
}
// Negation.
// Negate sets v = -p, and returns v.
func (v *Point) Negate(p *Point) *Point {
checkInitialized(p)
v.x.Negate(&p.x)
v.y.Set(&p.y)
v.z.Set(&p.z)
v.t.Negate(&p.t)
return v
}
// Equal returns 1 if v is equivalent to u, and 0 otherwise.
func (v *Point) Equal(u *Point) int {
checkInitialized(v, u)
var t1, t2, t3, t4 field.Element
t1.Multiply(&v.x, &u.z)
t2.Multiply(&u.x, &v.z)
t3.Multiply(&v.y, &u.z)
t4.Multiply(&u.y, &v.z)
return t1.Equal(&t2) & t3.Equal(&t4)
}
// Constant-time operations
// Select sets v to a if cond == 1 and to b if cond == 0.
func (v *projCached) Select(a, b *projCached, cond int) *projCached {
v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
v.Z.Select(&a.Z, &b.Z, cond)
v.T2d.Select(&a.T2d, &b.T2d, cond)
return v
}
// Select sets v to a if cond == 1 and to b if cond == 0.
func (v *affineCached) Select(a, b *affineCached, cond int) *affineCached {
v.YplusX.Select(&a.YplusX, &b.YplusX, cond)
v.YminusX.Select(&a.YminusX, &b.YminusX, cond)
v.T2d.Select(&a.T2d, &b.T2d, cond)
return v
}
// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
func (v *projCached) CondNeg(cond int) *projCached {
v.YplusX.Swap(&v.YminusX, cond)
v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
return v
}
// CondNeg negates v if cond == 1 and leaves it unchanged if cond == 0.
func (v *affineCached) CondNeg(cond int) *affineCached {
v.YplusX.Swap(&v.YminusX, cond)
v.T2d.Select(new(field.Element).Negate(&v.T2d), &v.T2d, cond)
return v
}

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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
// This file contains additional functionality that is not included in the
// upstream crypto/internal/edwards25519 package.
import (
"errors"
"filippo.io/edwards25519/field"
)
// ExtendedCoordinates returns v in extended coordinates (X:Y:Z:T) where
// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
func (v *Point) ExtendedCoordinates() (X, Y, Z, T *field.Element) {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap. Don't change the style without making
// sure it doesn't increase the inliner cost.
var e [4]field.Element
X, Y, Z, T = v.extendedCoordinates(&e)
return
}
func (v *Point) extendedCoordinates(e *[4]field.Element) (X, Y, Z, T *field.Element) {
checkInitialized(v)
X = e[0].Set(&v.x)
Y = e[1].Set(&v.y)
Z = e[2].Set(&v.z)
T = e[3].Set(&v.t)
return
}
// SetExtendedCoordinates sets v = (X:Y:Z:T) in extended coordinates where
// x = X/Z, y = Y/Z, and xy = T/Z as in https://eprint.iacr.org/2008/522.
//
// If the coordinates are invalid or don't represent a valid point on the curve,
// SetExtendedCoordinates returns nil and an error and the receiver is
// unchanged. Otherwise, SetExtendedCoordinates returns v.
func (v *Point) SetExtendedCoordinates(X, Y, Z, T *field.Element) (*Point, error) {
if !isOnCurve(X, Y, Z, T) {
return nil, errors.New("edwards25519: invalid point coordinates")
}
v.x.Set(X)
v.y.Set(Y)
v.z.Set(Z)
v.t.Set(T)
return v, nil
}
func isOnCurve(X, Y, Z, T *field.Element) bool {
var lhs, rhs field.Element
XX := new(field.Element).Square(X)
YY := new(field.Element).Square(Y)
ZZ := new(field.Element).Square(Z)
TT := new(field.Element).Square(T)
// -x² + y² = 1 + dx²y²
// -(X/Z)² + (Y/Z)² = 1 + d(T/Z)²
// -X² + Y² = Z² + dT²
lhs.Subtract(YY, XX)
rhs.Multiply(d, TT).Add(&rhs, ZZ)
if lhs.Equal(&rhs) != 1 {
return false
}
// xy = T/Z
// XY/Z² = T/Z
// XY = TZ
lhs.Multiply(X, Y)
rhs.Multiply(T, Z)
return lhs.Equal(&rhs) == 1
}
// BytesMontgomery converts v to a point on the birationally-equivalent
// Curve25519 Montgomery curve, and returns its canonical 32 bytes encoding
// according to RFC 7748.
//
// Note that BytesMontgomery only encodes the u-coordinate, so v and -v encode
// to the same value. If v is the identity point, BytesMontgomery returns 32
// zero bytes, analogously to the X25519 function.
//
// The lack of an inverse operation (such as SetMontgomeryBytes) is deliberate:
// while every valid edwards25519 point has a unique u-coordinate Montgomery
// encoding, X25519 accepts inputs on the quadratic twist, which don't correspond
// to any edwards25519 point, and every other X25519 input corresponds to two
// edwards25519 points.
func (v *Point) BytesMontgomery() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var buf [32]byte
return v.bytesMontgomery(&buf)
}
func (v *Point) bytesMontgomery(buf *[32]byte) []byte {
checkInitialized(v)
// RFC 7748, Section 4.1 provides the bilinear map to calculate the
// Montgomery u-coordinate
//
// u = (1 + y) / (1 - y)
//
// where y = Y / Z.
var y, recip, u field.Element
y.Multiply(&v.y, y.Invert(&v.z)) // y = Y / Z
recip.Invert(recip.Subtract(feOne, &y)) // r = 1/(1 - y)
u.Multiply(u.Add(feOne, &y), &recip) // u = (1 + y)*r
return copyFieldElement(buf, &u)
}
// MultByCofactor sets v = 8 * p, and returns v.
func (v *Point) MultByCofactor(p *Point) *Point {
checkInitialized(p)
result := projP1xP1{}
pp := (&projP2{}).FromP3(p)
result.Double(pp)
pp.FromP1xP1(&result)
result.Double(pp)
pp.FromP1xP1(&result)
result.Double(pp)
return v.fromP1xP1(&result)
}
// Given k > 0, set s = s**(2*i).
func (s *Scalar) pow2k(k int) {
for i := 0; i < k; i++ {
s.Multiply(s, s)
}
}
// Invert sets s to the inverse of a nonzero scalar v, and returns s.
//
// If t is zero, Invert returns zero.
func (s *Scalar) Invert(t *Scalar) *Scalar {
// Uses a hardcoded sliding window of width 4.
var table [8]Scalar
var tt Scalar
tt.Multiply(t, t)
table[0] = *t
for i := 0; i < 7; i++ {
table[i+1].Multiply(&table[i], &tt)
}
// Now table = [t**1, t**3, t**5, t**7, t**9, t**11, t**13, t**15]
// so t**k = t[k/2] for odd k
// To compute the sliding window digits, use the following Sage script:
// sage: import itertools
// sage: def sliding_window(w,k):
// ....: digits = []
// ....: while k > 0:
// ....: if k % 2 == 1:
// ....: kmod = k % (2**w)
// ....: digits.append(kmod)
// ....: k = k - kmod
// ....: else:
// ....: digits.append(0)
// ....: k = k // 2
// ....: return digits
// Now we can compute s roughly as follows:
// sage: s = 1
// sage: for coeff in reversed(sliding_window(4,l-2)):
// ....: s = s*s
// ....: if coeff > 0 :
// ....: s = s*t**coeff
// This works on one bit at a time, with many runs of zeros.
// The digits can be collapsed into [(count, coeff)] as follows:
// sage: [(len(list(group)),d) for d,group in itertools.groupby(sliding_window(4,l-2))]
// Entries of the form (k, 0) turn into pow2k(k)
// Entries of the form (1, coeff) turn into a squaring and then a table lookup.
// We can fold the squaring into the previous pow2k(k) as pow2k(k+1).
*s = table[1/2]
s.pow2k(127 + 1)
s.Multiply(s, &table[1/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[13/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[5/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[1/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(5 + 1)
s.Multiply(s, &table[11/2])
s.pow2k(9 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[3/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[13/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[7/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[9/2])
s.pow2k(3 + 1)
s.Multiply(s, &table[15/2])
s.pow2k(4 + 1)
s.Multiply(s, &table[11/2])
return s
}
// MultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
//
// Execution time depends only on the lengths of the two slices, which must match.
func (v *Point) MultiScalarMult(scalars []*Scalar, points []*Point) *Point {
if len(scalars) != len(points) {
panic("edwards25519: called MultiScalarMult with different size inputs")
}
checkInitialized(points...)
// Proceed as in the single-base case, but share doublings
// between each point in the multiscalar equation.
// Build lookup tables for each point
tables := make([]projLookupTable, len(points))
for i := range tables {
tables[i].FromP3(points[i])
}
// Compute signed radix-16 digits for each scalar
digits := make([][64]int8, len(scalars))
for i := range digits {
digits[i] = scalars[i].signedRadix16()
}
// Unwrap first loop iteration to save computing 16*identity
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
// Lookup-and-add the appropriate multiple of each input point
for j := range tables {
tables[j].SelectInto(multiple, digits[j][63])
tmp1.Add(v, multiple) // tmp1 = v + x_(j,63)*Q in P1xP1 coords
v.fromP1xP1(tmp1) // update v
}
tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
for i := 62; i >= 0; i-- {
tmp1.Double(tmp2) // tmp1 = 2*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*(prev) in P1xP1 coords
v.fromP1xP1(tmp1) // v = 16*(prev) in P3 coords
// Lookup-and-add the appropriate multiple of each input point
for j := range tables {
tables[j].SelectInto(multiple, digits[j][i])
tmp1.Add(v, multiple) // tmp1 = v + x_(j,i)*Q in P1xP1 coords
v.fromP1xP1(tmp1) // update v
}
tmp2.FromP3(v) // set up tmp2 = v in P2 coords for next iteration
}
return v
}
// VarTimeMultiScalarMult sets v = sum(scalars[i] * points[i]), and returns v.
//
// Execution time depends on the inputs.
func (v *Point) VarTimeMultiScalarMult(scalars []*Scalar, points []*Point) *Point {
if len(scalars) != len(points) {
panic("edwards25519: called VarTimeMultiScalarMult with different size inputs")
}
checkInitialized(points...)
// Generalize double-base NAF computation to arbitrary sizes.
// Here all the points are dynamic, so we only use the smaller
// tables.
// Build lookup tables for each point
tables := make([]nafLookupTable5, len(points))
for i := range tables {
tables[i].FromP3(points[i])
}
// Compute a NAF for each scalar
nafs := make([][256]int8, len(scalars))
for i := range nafs {
nafs[i] = scalars[i].nonAdjacentForm(5)
}
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
tmp2.Zero()
// Move from high to low bits, doubling the accumulator
// at each iteration and checking whether there is a nonzero
// coefficient to look up a multiple of.
//
// Skip trying to find the first nonzero coefficent, because
// searching might be more work than a few extra doublings.
for i := 255; i >= 0; i-- {
tmp1.Double(tmp2)
for j := range nafs {
if nafs[j][i] > 0 {
v.fromP1xP1(tmp1)
tables[j].SelectInto(multiple, nafs[j][i])
tmp1.Add(v, multiple)
} else if nafs[j][i] < 0 {
v.fromP1xP1(tmp1)
tables[j].SelectInto(multiple, -nafs[j][i])
tmp1.Sub(v, multiple)
}
}
tmp2.FromP1xP1(tmp1)
}
v.fromP2(tmp2)
return v
}

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// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package field implements fast arithmetic modulo 2^255-19.
package field
import (
"crypto/subtle"
"encoding/binary"
"errors"
"math/bits"
)
// Element represents an element of the field GF(2^255-19). Note that this
// is not a cryptographically secure group, and should only be used to interact
// with edwards25519.Point coordinates.
//
// This type works similarly to math/big.Int, and all arguments and receivers
// are allowed to alias.
//
// The zero value is a valid zero element.
type Element struct {
// An element t represents the integer
// t.l0 + t.l1*2^51 + t.l2*2^102 + t.l3*2^153 + t.l4*2^204
//
// Between operations, all limbs are expected to be lower than 2^52.
l0 uint64
l1 uint64
l2 uint64
l3 uint64
l4 uint64
}
const maskLow51Bits uint64 = (1 << 51) - 1
var feZero = &Element{0, 0, 0, 0, 0}
// Zero sets v = 0, and returns v.
func (v *Element) Zero() *Element {
*v = *feZero
return v
}
var feOne = &Element{1, 0, 0, 0, 0}
// One sets v = 1, and returns v.
func (v *Element) One() *Element {
*v = *feOne
return v
}
// reduce reduces v modulo 2^255 - 19 and returns it.
func (v *Element) reduce() *Element {
v.carryPropagate()
// After the light reduction we now have a field element representation
// v < 2^255 + 2^13 * 19, but need v < 2^255 - 19.
// If v >= 2^255 - 19, then v + 19 >= 2^255, which would overflow 2^255 - 1,
// generating a carry. That is, c will be 0 if v < 2^255 - 19, and 1 otherwise.
c := (v.l0 + 19) >> 51
c = (v.l1 + c) >> 51
c = (v.l2 + c) >> 51
c = (v.l3 + c) >> 51
c = (v.l4 + c) >> 51
// If v < 2^255 - 19 and c = 0, this will be a no-op. Otherwise, it's
// effectively applying the reduction identity to the carry.
v.l0 += 19 * c
v.l1 += v.l0 >> 51
v.l0 = v.l0 & maskLow51Bits
v.l2 += v.l1 >> 51
v.l1 = v.l1 & maskLow51Bits
v.l3 += v.l2 >> 51
v.l2 = v.l2 & maskLow51Bits
v.l4 += v.l3 >> 51
v.l3 = v.l3 & maskLow51Bits
// no additional carry
v.l4 = v.l4 & maskLow51Bits
return v
}
// Add sets v = a + b, and returns v.
func (v *Element) Add(a, b *Element) *Element {
v.l0 = a.l0 + b.l0
v.l1 = a.l1 + b.l1
v.l2 = a.l2 + b.l2
v.l3 = a.l3 + b.l3
v.l4 = a.l4 + b.l4
// Using the generic implementation here is actually faster than the
// assembly. Probably because the body of this function is so simple that
// the compiler can figure out better optimizations by inlining the carry
// propagation.
return v.carryPropagateGeneric()
}
// Subtract sets v = a - b, and returns v.
func (v *Element) Subtract(a, b *Element) *Element {
// We first add 2 * p, to guarantee the subtraction won't underflow, and
// then subtract b (which can be up to 2^255 + 2^13 * 19).
v.l0 = (a.l0 + 0xFFFFFFFFFFFDA) - b.l0
v.l1 = (a.l1 + 0xFFFFFFFFFFFFE) - b.l1
v.l2 = (a.l2 + 0xFFFFFFFFFFFFE) - b.l2
v.l3 = (a.l3 + 0xFFFFFFFFFFFFE) - b.l3
v.l4 = (a.l4 + 0xFFFFFFFFFFFFE) - b.l4
return v.carryPropagate()
}
// Negate sets v = -a, and returns v.
func (v *Element) Negate(a *Element) *Element {
return v.Subtract(feZero, a)
}
// Invert sets v = 1/z mod p, and returns v.
//
// If z == 0, Invert returns v = 0.
func (v *Element) Invert(z *Element) *Element {
// Inversion is implemented as exponentiation with exponent p − 2. It uses the
// same sequence of 255 squarings and 11 multiplications as [Curve25519].
var z2, z9, z11, z2_5_0, z2_10_0, z2_20_0, z2_50_0, z2_100_0, t Element
z2.Square(z) // 2
t.Square(&z2) // 4
t.Square(&t) // 8
z9.Multiply(&t, z) // 9
z11.Multiply(&z9, &z2) // 11
t.Square(&z11) // 22
z2_5_0.Multiply(&t, &z9) // 31 = 2^5 - 2^0
t.Square(&z2_5_0) // 2^6 - 2^1
for i := 0; i < 4; i++ {
t.Square(&t) // 2^10 - 2^5
}
z2_10_0.Multiply(&t, &z2_5_0) // 2^10 - 2^0
t.Square(&z2_10_0) // 2^11 - 2^1
for i := 0; i < 9; i++ {
t.Square(&t) // 2^20 - 2^10
}
z2_20_0.Multiply(&t, &z2_10_0) // 2^20 - 2^0
t.Square(&z2_20_0) // 2^21 - 2^1
for i := 0; i < 19; i++ {
t.Square(&t) // 2^40 - 2^20
}
t.Multiply(&t, &z2_20_0) // 2^40 - 2^0
t.Square(&t) // 2^41 - 2^1
for i := 0; i < 9; i++ {
t.Square(&t) // 2^50 - 2^10
}
z2_50_0.Multiply(&t, &z2_10_0) // 2^50 - 2^0
t.Square(&z2_50_0) // 2^51 - 2^1
for i := 0; i < 49; i++ {
t.Square(&t) // 2^100 - 2^50
}
z2_100_0.Multiply(&t, &z2_50_0) // 2^100 - 2^0
t.Square(&z2_100_0) // 2^101 - 2^1
for i := 0; i < 99; i++ {
t.Square(&t) // 2^200 - 2^100
}
t.Multiply(&t, &z2_100_0) // 2^200 - 2^0
t.Square(&t) // 2^201 - 2^1
for i := 0; i < 49; i++ {
t.Square(&t) // 2^250 - 2^50
}
t.Multiply(&t, &z2_50_0) // 2^250 - 2^0
t.Square(&t) // 2^251 - 2^1
t.Square(&t) // 2^252 - 2^2
t.Square(&t) // 2^253 - 2^3
t.Square(&t) // 2^254 - 2^4
t.Square(&t) // 2^255 - 2^5
return v.Multiply(&t, &z11) // 2^255 - 21
}
// Set sets v = a, and returns v.
func (v *Element) Set(a *Element) *Element {
*v = *a
return v
}
// SetBytes sets v to x, where x is a 32-byte little-endian encoding. If x is
// not of the right length, SetBytes returns nil and an error, and the
// receiver is unchanged.
//
// Consistent with RFC 7748, the most significant bit (the high bit of the
// last byte) is ignored, and non-canonical values (2^255-19 through 2^255-1)
// are accepted. Note that this is laxer than specified by RFC 8032, but
// consistent with most Ed25519 implementations.
func (v *Element) SetBytes(x []byte) (*Element, error) {
if len(x) != 32 {
return nil, errors.New("edwards25519: invalid field element input size")
}
// Bits 0:51 (bytes 0:8, bits 0:64, shift 0, mask 51).
v.l0 = binary.LittleEndian.Uint64(x[0:8])
v.l0 &= maskLow51Bits
// Bits 51:102 (bytes 6:14, bits 48:112, shift 3, mask 51).
v.l1 = binary.LittleEndian.Uint64(x[6:14]) >> 3
v.l1 &= maskLow51Bits
// Bits 102:153 (bytes 12:20, bits 96:160, shift 6, mask 51).
v.l2 = binary.LittleEndian.Uint64(x[12:20]) >> 6
v.l2 &= maskLow51Bits
// Bits 153:204 (bytes 19:27, bits 152:216, shift 1, mask 51).
v.l3 = binary.LittleEndian.Uint64(x[19:27]) >> 1
v.l3 &= maskLow51Bits
// Bits 204:255 (bytes 24:32, bits 192:256, shift 12, mask 51).
// Note: not bytes 25:33, shift 4, to avoid overread.
v.l4 = binary.LittleEndian.Uint64(x[24:32]) >> 12
v.l4 &= maskLow51Bits
return v, nil
}
// Bytes returns the canonical 32-byte little-endian encoding of v.
func (v *Element) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var out [32]byte
return v.bytes(&out)
}
func (v *Element) bytes(out *[32]byte) []byte {
t := *v
t.reduce()
var buf [8]byte
for i, l := range [5]uint64{t.l0, t.l1, t.l2, t.l3, t.l4} {
bitsOffset := i * 51
binary.LittleEndian.PutUint64(buf[:], l<<uint(bitsOffset%8))
for i, bb := range buf {
off := bitsOffset/8 + i
if off >= len(out) {
break
}
out[off] |= bb
}
}
return out[:]
}
// Equal returns 1 if v and u are equal, and 0 otherwise.
func (v *Element) Equal(u *Element) int {
sa, sv := u.Bytes(), v.Bytes()
return subtle.ConstantTimeCompare(sa, sv)
}
// mask64Bits returns 0xffffffff if cond is 1, and 0 otherwise.
func mask64Bits(cond int) uint64 { return ^(uint64(cond) - 1) }
// Select sets v to a if cond == 1, and to b if cond == 0.
func (v *Element) Select(a, b *Element, cond int) *Element {
m := mask64Bits(cond)
v.l0 = (m & a.l0) | (^m & b.l0)
v.l1 = (m & a.l1) | (^m & b.l1)
v.l2 = (m & a.l2) | (^m & b.l2)
v.l3 = (m & a.l3) | (^m & b.l3)
v.l4 = (m & a.l4) | (^m & b.l4)
return v
}
// Swap swaps v and u if cond == 1 or leaves them unchanged if cond == 0, and returns v.
func (v *Element) Swap(u *Element, cond int) {
m := mask64Bits(cond)
t := m & (v.l0 ^ u.l0)
v.l0 ^= t
u.l0 ^= t
t = m & (v.l1 ^ u.l1)
v.l1 ^= t
u.l1 ^= t
t = m & (v.l2 ^ u.l2)
v.l2 ^= t
u.l2 ^= t
t = m & (v.l3 ^ u.l3)
v.l3 ^= t
u.l3 ^= t
t = m & (v.l4 ^ u.l4)
v.l4 ^= t
u.l4 ^= t
}
// IsNegative returns 1 if v is negative, and 0 otherwise.
func (v *Element) IsNegative() int {
return int(v.Bytes()[0] & 1)
}
// Absolute sets v to |u|, and returns v.
func (v *Element) Absolute(u *Element) *Element {
return v.Select(new(Element).Negate(u), u, u.IsNegative())
}
// Multiply sets v = x * y, and returns v.
func (v *Element) Multiply(x, y *Element) *Element {
feMul(v, x, y)
return v
}
// Square sets v = x * x, and returns v.
func (v *Element) Square(x *Element) *Element {
feSquare(v, x)
return v
}
// Mult32 sets v = x * y, and returns v.
func (v *Element) Mult32(x *Element, y uint32) *Element {
x0lo, x0hi := mul51(x.l0, y)
x1lo, x1hi := mul51(x.l1, y)
x2lo, x2hi := mul51(x.l2, y)
x3lo, x3hi := mul51(x.l3, y)
x4lo, x4hi := mul51(x.l4, y)
v.l0 = x0lo + 19*x4hi // carried over per the reduction identity
v.l1 = x1lo + x0hi
v.l2 = x2lo + x1hi
v.l3 = x3lo + x2hi
v.l4 = x4lo + x3hi
// The hi portions are going to be only 32 bits, plus any previous excess,
// so we can skip the carry propagation.
return v
}
// mul51 returns lo + hi * 2⁵¹ = a * b.
func mul51(a uint64, b uint32) (lo uint64, hi uint64) {
mh, ml := bits.Mul64(a, uint64(b))
lo = ml & maskLow51Bits
hi = (mh << 13) | (ml >> 51)
return
}
// Pow22523 set v = x^((p-5)/8), and returns v. (p-5)/8 is 2^252-3.
func (v *Element) Pow22523(x *Element) *Element {
var t0, t1, t2 Element
t0.Square(x) // x^2
t1.Square(&t0) // x^4
t1.Square(&t1) // x^8
t1.Multiply(x, &t1) // x^9
t0.Multiply(&t0, &t1) // x^11
t0.Square(&t0) // x^22
t0.Multiply(&t1, &t0) // x^31
t1.Square(&t0) // x^62
for i := 1; i < 5; i++ { // x^992
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // x^1023 -> 1023 = 2^10 - 1
t1.Square(&t0) // 2^11 - 2
for i := 1; i < 10; i++ { // 2^20 - 2^10
t1.Square(&t1)
}
t1.Multiply(&t1, &t0) // 2^20 - 1
t2.Square(&t1) // 2^21 - 2
for i := 1; i < 20; i++ { // 2^40 - 2^20
t2.Square(&t2)
}
t1.Multiply(&t2, &t1) // 2^40 - 1
t1.Square(&t1) // 2^41 - 2
for i := 1; i < 10; i++ { // 2^50 - 2^10
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // 2^50 - 1
t1.Square(&t0) // 2^51 - 2
for i := 1; i < 50; i++ { // 2^100 - 2^50
t1.Square(&t1)
}
t1.Multiply(&t1, &t0) // 2^100 - 1
t2.Square(&t1) // 2^101 - 2
for i := 1; i < 100; i++ { // 2^200 - 2^100
t2.Square(&t2)
}
t1.Multiply(&t2, &t1) // 2^200 - 1
t1.Square(&t1) // 2^201 - 2
for i := 1; i < 50; i++ { // 2^250 - 2^50
t1.Square(&t1)
}
t0.Multiply(&t1, &t0) // 2^250 - 1
t0.Square(&t0) // 2^251 - 2
t0.Square(&t0) // 2^252 - 4
return v.Multiply(&t0, x) // 2^252 - 3 -> x^(2^252-3)
}
// sqrtM1 is 2^((p-1)/4), which squared is equal to -1 by Euler's Criterion.
var sqrtM1 = &Element{1718705420411056, 234908883556509,
2233514472574048, 2117202627021982, 765476049583133}
// SqrtRatio sets r to the non-negative square root of the ratio of u and v.
//
// If u/v is square, SqrtRatio returns r and 1. If u/v is not square, SqrtRatio
// sets r according to Section 4.3 of draft-irtf-cfrg-ristretto255-decaf448-00,
// and returns r and 0.
func (r *Element) SqrtRatio(u, v *Element) (R *Element, wasSquare int) {
t0 := new(Element)
// r = (u * v3) * (u * v7)^((p-5)/8)
v2 := new(Element).Square(v)
uv3 := new(Element).Multiply(u, t0.Multiply(v2, v))
uv7 := new(Element).Multiply(uv3, t0.Square(v2))
rr := new(Element).Multiply(uv3, t0.Pow22523(uv7))
check := new(Element).Multiply(v, t0.Square(rr)) // check = v * r^2
uNeg := new(Element).Negate(u)
correctSignSqrt := check.Equal(u)
flippedSignSqrt := check.Equal(uNeg)
flippedSignSqrtI := check.Equal(t0.Multiply(uNeg, sqrtM1))
rPrime := new(Element).Multiply(rr, sqrtM1) // r_prime = SQRT_M1 * r
// r = CT_SELECT(r_prime IF flipped_sign_sqrt | flipped_sign_sqrt_i ELSE r)
rr.Select(rPrime, rr, flippedSignSqrt|flippedSignSqrtI)
r.Absolute(rr) // Choose the nonnegative square root.
return r, correctSignSqrt | flippedSignSqrt
}

16
vendor/filippo.io/edwards25519/field/fe_amd64.go generated vendored Normal file
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// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
//go:build amd64 && gc && !purego
// +build amd64,gc,!purego
package field
// feMul sets out = a * b. It works like feMulGeneric.
//
//go:noescape
func feMul(out *Element, a *Element, b *Element)
// feSquare sets out = a * a. It works like feSquareGeneric.
//
//go:noescape
func feSquare(out *Element, a *Element)

379
vendor/filippo.io/edwards25519/field/fe_amd64.s generated vendored Normal file
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// Code generated by command: go run fe_amd64_asm.go -out ../fe_amd64.s -stubs ../fe_amd64.go -pkg field. DO NOT EDIT.
//go:build amd64 && gc && !purego
// +build amd64,gc,!purego
#include "textflag.h"
// func feMul(out *Element, a *Element, b *Element)
TEXT ·feMul(SB), NOSPLIT, $0-24
MOVQ a+8(FP), CX
MOVQ b+16(FP), BX
// r0 = a0×b0
MOVQ (CX), AX
MULQ (BX)
MOVQ AX, DI
MOVQ DX, SI
// r0 += 19×a1×b4
MOVQ 8(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a2×b3
MOVQ 16(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a3×b2
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 16(BX)
ADDQ AX, DI
ADCQ DX, SI
// r0 += 19×a4×b1
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 8(BX)
ADDQ AX, DI
ADCQ DX, SI
// r1 = a0×b1
MOVQ (CX), AX
MULQ 8(BX)
MOVQ AX, R9
MOVQ DX, R8
// r1 += a1×b0
MOVQ 8(CX), AX
MULQ (BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a2×b4
MOVQ 16(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a3×b3
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, R9
ADCQ DX, R8
// r1 += 19×a4×b2
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 16(BX)
ADDQ AX, R9
ADCQ DX, R8
// r2 = a0×b2
MOVQ (CX), AX
MULQ 16(BX)
MOVQ AX, R11
MOVQ DX, R10
// r2 += a1×b1
MOVQ 8(CX), AX
MULQ 8(BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += a2×b0
MOVQ 16(CX), AX
MULQ (BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += 19×a3×b4
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R11
ADCQ DX, R10
// r2 += 19×a4×b3
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(BX)
ADDQ AX, R11
ADCQ DX, R10
// r3 = a0×b3
MOVQ (CX), AX
MULQ 24(BX)
MOVQ AX, R13
MOVQ DX, R12
// r3 += a1×b2
MOVQ 8(CX), AX
MULQ 16(BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += a2×b1
MOVQ 16(CX), AX
MULQ 8(BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += a3×b0
MOVQ 24(CX), AX
MULQ (BX)
ADDQ AX, R13
ADCQ DX, R12
// r3 += 19×a4×b4
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(BX)
ADDQ AX, R13
ADCQ DX, R12
// r4 = a0×b4
MOVQ (CX), AX
MULQ 32(BX)
MOVQ AX, R15
MOVQ DX, R14
// r4 += a1×b3
MOVQ 8(CX), AX
MULQ 24(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a2×b2
MOVQ 16(CX), AX
MULQ 16(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a3×b1
MOVQ 24(CX), AX
MULQ 8(BX)
ADDQ AX, R15
ADCQ DX, R14
// r4 += a4×b0
MOVQ 32(CX), AX
MULQ (BX)
ADDQ AX, R15
ADCQ DX, R14
// First reduction chain
MOVQ $0x0007ffffffffffff, AX
SHLQ $0x0d, DI, SI
SHLQ $0x0d, R9, R8
SHLQ $0x0d, R11, R10
SHLQ $0x0d, R13, R12
SHLQ $0x0d, R15, R14
ANDQ AX, DI
IMUL3Q $0x13, R14, R14
ADDQ R14, DI
ANDQ AX, R9
ADDQ SI, R9
ANDQ AX, R11
ADDQ R8, R11
ANDQ AX, R13
ADDQ R10, R13
ANDQ AX, R15
ADDQ R12, R15
// Second reduction chain (carryPropagate)
MOVQ DI, SI
SHRQ $0x33, SI
MOVQ R9, R8
SHRQ $0x33, R8
MOVQ R11, R10
SHRQ $0x33, R10
MOVQ R13, R12
SHRQ $0x33, R12
MOVQ R15, R14
SHRQ $0x33, R14
ANDQ AX, DI
IMUL3Q $0x13, R14, R14
ADDQ R14, DI
ANDQ AX, R9
ADDQ SI, R9
ANDQ AX, R11
ADDQ R8, R11
ANDQ AX, R13
ADDQ R10, R13
ANDQ AX, R15
ADDQ R12, R15
// Store output
MOVQ out+0(FP), AX
MOVQ DI, (AX)
MOVQ R9, 8(AX)
MOVQ R11, 16(AX)
MOVQ R13, 24(AX)
MOVQ R15, 32(AX)
RET
// func feSquare(out *Element, a *Element)
TEXT ·feSquare(SB), NOSPLIT, $0-16
MOVQ a+8(FP), CX
// r0 = l0×l0
MOVQ (CX), AX
MULQ (CX)
MOVQ AX, SI
MOVQ DX, BX
// r0 += 38×l1×l4
MOVQ 8(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, SI
ADCQ DX, BX
// r0 += 38×l2×l3
MOVQ 16(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 24(CX)
ADDQ AX, SI
ADCQ DX, BX
// r1 = 2×l0×l1
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 8(CX)
MOVQ AX, R8
MOVQ DX, DI
// r1 += 38×l2×l4
MOVQ 16(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, R8
ADCQ DX, DI
// r1 += 19×l3×l3
MOVQ 24(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 24(CX)
ADDQ AX, R8
ADCQ DX, DI
// r2 = 2×l0×l2
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 16(CX)
MOVQ AX, R10
MOVQ DX, R9
// r2 += l1×l1
MOVQ 8(CX), AX
MULQ 8(CX)
ADDQ AX, R10
ADCQ DX, R9
// r2 += 38×l3×l4
MOVQ 24(CX), AX
IMUL3Q $0x26, AX, AX
MULQ 32(CX)
ADDQ AX, R10
ADCQ DX, R9
// r3 = 2×l0×l3
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 24(CX)
MOVQ AX, R12
MOVQ DX, R11
// r3 += 2×l1×l2
MOVQ 8(CX), AX
IMUL3Q $0x02, AX, AX
MULQ 16(CX)
ADDQ AX, R12
ADCQ DX, R11
// r3 += 19×l4×l4
MOVQ 32(CX), AX
IMUL3Q $0x13, AX, AX
MULQ 32(CX)
ADDQ AX, R12
ADCQ DX, R11
// r4 = 2×l0×l4
MOVQ (CX), AX
SHLQ $0x01, AX
MULQ 32(CX)
MOVQ AX, R14
MOVQ DX, R13
// r4 += 2×l1×l3
MOVQ 8(CX), AX
IMUL3Q $0x02, AX, AX
MULQ 24(CX)
ADDQ AX, R14
ADCQ DX, R13
// r4 += l2×l2
MOVQ 16(CX), AX
MULQ 16(CX)
ADDQ AX, R14
ADCQ DX, R13
// First reduction chain
MOVQ $0x0007ffffffffffff, AX
SHLQ $0x0d, SI, BX
SHLQ $0x0d, R8, DI
SHLQ $0x0d, R10, R9
SHLQ $0x0d, R12, R11
SHLQ $0x0d, R14, R13
ANDQ AX, SI
IMUL3Q $0x13, R13, R13
ADDQ R13, SI
ANDQ AX, R8
ADDQ BX, R8
ANDQ AX, R10
ADDQ DI, R10
ANDQ AX, R12
ADDQ R9, R12
ANDQ AX, R14
ADDQ R11, R14
// Second reduction chain (carryPropagate)
MOVQ SI, BX
SHRQ $0x33, BX
MOVQ R8, DI
SHRQ $0x33, DI
MOVQ R10, R9
SHRQ $0x33, R9
MOVQ R12, R11
SHRQ $0x33, R11
MOVQ R14, R13
SHRQ $0x33, R13
ANDQ AX, SI
IMUL3Q $0x13, R13, R13
ADDQ R13, SI
ANDQ AX, R8
ADDQ BX, R8
ANDQ AX, R10
ADDQ DI, R10
ANDQ AX, R12
ADDQ R9, R12
ANDQ AX, R14
ADDQ R11, R14
// Store output
MOVQ out+0(FP), AX
MOVQ SI, (AX)
MOVQ R8, 8(AX)
MOVQ R10, 16(AX)
MOVQ R12, 24(AX)
MOVQ R14, 32(AX)
RET

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vendor/filippo.io/edwards25519/field/fe_amd64_noasm.go generated vendored Normal file
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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !amd64 || !gc || purego
// +build !amd64 !gc purego
package field
func feMul(v, x, y *Element) { feMulGeneric(v, x, y) }
func feSquare(v, x *Element) { feSquareGeneric(v, x) }

16
vendor/filippo.io/edwards25519/field/fe_arm64.go generated vendored Normal file
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// Copyright (c) 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build arm64 && gc && !purego
// +build arm64,gc,!purego
package field
//go:noescape
func carryPropagate(v *Element)
func (v *Element) carryPropagate() *Element {
carryPropagate(v)
return v
}

42
vendor/filippo.io/edwards25519/field/fe_arm64.s generated vendored Normal file
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// Copyright (c) 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build arm64 && gc && !purego
#include "textflag.h"
// carryPropagate works exactly like carryPropagateGeneric and uses the
// same AND, ADD, and LSR+MADD instructions emitted by the compiler, but
// avoids loading R0-R4 twice and uses LDP and STP.
//
// See https://golang.org/issues/43145 for the main compiler issue.
//
// func carryPropagate(v *Element)
TEXT ·carryPropagate(SB),NOFRAME|NOSPLIT,$0-8
MOVD v+0(FP), R20
LDP 0(R20), (R0, R1)
LDP 16(R20), (R2, R3)
MOVD 32(R20), R4
AND $0x7ffffffffffff, R0, R10
AND $0x7ffffffffffff, R1, R11
AND $0x7ffffffffffff, R2, R12
AND $0x7ffffffffffff, R3, R13
AND $0x7ffffffffffff, R4, R14
ADD R0>>51, R11, R11
ADD R1>>51, R12, R12
ADD R2>>51, R13, R13
ADD R3>>51, R14, R14
// R4>>51 * 19 + R10 -> R10
LSR $51, R4, R21
MOVD $19, R22
MADD R22, R10, R21, R10
STP (R10, R11), 0(R20)
STP (R12, R13), 16(R20)
MOVD R14, 32(R20)
RET

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vendor/filippo.io/edwards25519/field/fe_arm64_noasm.go generated vendored Normal file
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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !arm64 || !gc || purego
// +build !arm64 !gc purego
package field
func (v *Element) carryPropagate() *Element {
return v.carryPropagateGeneric()
}

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// Copyright (c) 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package field
import "errors"
// This file contains additional functionality that is not included in the
// upstream crypto/ed25519/edwards25519/field package.
// SetWideBytes sets v to x, where x is a 64-byte little-endian encoding, which
// is reduced modulo the field order. If x is not of the right length,
// SetWideBytes returns nil and an error, and the receiver is unchanged.
//
// SetWideBytes is not necessary to select a uniformly distributed value, and is
// only provided for compatibility: SetBytes can be used instead as the chance
// of bias is less than 2⁻²⁵⁰.
func (v *Element) SetWideBytes(x []byte) (*Element, error) {
if len(x) != 64 {
return nil, errors.New("edwards25519: invalid SetWideBytes input size")
}
// Split the 64 bytes into two elements, and extract the most significant
// bit of each, which is ignored by SetBytes.
lo, _ := new(Element).SetBytes(x[:32])
loMSB := uint64(x[31] >> 7)
hi, _ := new(Element).SetBytes(x[32:])
hiMSB := uint64(x[63] >> 7)
// The output we want is
//
// v = lo + loMSB * 2²⁵⁵ + hi * 2²⁵⁶ + hiMSB * 2⁵¹¹
//
// which applying the reduction identity comes out to
//
// v = lo + loMSB * 19 + hi * 2 * 19 + hiMSB * 2 * 19²
//
// l0 will be the sum of a 52 bits value (lo.l0), plus a 5 bits value
// (loMSB * 19), a 6 bits value (hi.l0 * 2 * 19), and a 10 bits value
// (hiMSB * 2 * 19²), so it fits in a uint64.
v.l0 = lo.l0 + loMSB*19 + hi.l0*2*19 + hiMSB*2*19*19
v.l1 = lo.l1 + hi.l1*2*19
v.l2 = lo.l2 + hi.l2*2*19
v.l3 = lo.l3 + hi.l3*2*19
v.l4 = lo.l4 + hi.l4*2*19
return v.carryPropagate(), nil
}

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// Copyright (c) 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package field
import "math/bits"
// uint128 holds a 128-bit number as two 64-bit limbs, for use with the
// bits.Mul64 and bits.Add64 intrinsics.
type uint128 struct {
lo, hi uint64
}
// mul64 returns a * b.
func mul64(a, b uint64) uint128 {
hi, lo := bits.Mul64(a, b)
return uint128{lo, hi}
}
// addMul64 returns v + a * b.
func addMul64(v uint128, a, b uint64) uint128 {
hi, lo := bits.Mul64(a, b)
lo, c := bits.Add64(lo, v.lo, 0)
hi, _ = bits.Add64(hi, v.hi, c)
return uint128{lo, hi}
}
// shiftRightBy51 returns a >> 51. a is assumed to be at most 115 bits.
func shiftRightBy51(a uint128) uint64 {
return (a.hi << (64 - 51)) | (a.lo >> 51)
}
func feMulGeneric(v, a, b *Element) {
a0 := a.l0
a1 := a.l1
a2 := a.l2
a3 := a.l3
a4 := a.l4
b0 := b.l0
b1 := b.l1
b2 := b.l2
b3 := b.l3
b4 := b.l4
// Limb multiplication works like pen-and-paper columnar multiplication, but
// with 51-bit limbs instead of digits.
//
// a4 a3 a2 a1 a0 x
// b4 b3 b2 b1 b0 =
// ------------------------
// a4b0 a3b0 a2b0 a1b0 a0b0 +
// a4b1 a3b1 a2b1 a1b1 a0b1 +
// a4b2 a3b2 a2b2 a1b2 a0b2 +
// a4b3 a3b3 a2b3 a1b3 a0b3 +
// a4b4 a3b4 a2b4 a1b4 a0b4 =
// ----------------------------------------------
// r8 r7 r6 r5 r4 r3 r2 r1 r0
//
// We can then use the reduction identity (a * 2²⁵⁵ + b = a * 19 + b) to
// reduce the limbs that would overflow 255 bits. r5 * 2²⁵⁵ becomes 19 * r5,
// r6 * 2³⁰⁶ becomes 19 * r6 * 2⁵¹, etc.
//
// Reduction can be carried out simultaneously to multiplication. For
// example, we do not compute r5: whenever the result of a multiplication
// belongs to r5, like a1b4, we multiply it by 19 and add the result to r0.
//
// a4b0 a3b0 a2b0 a1b0 a0b0 +
// a3b1 a2b1 a1b1 a0b1 19×a4b1 +
// a2b2 a1b2 a0b2 19×a4b2 19×a3b2 +
// a1b3 a0b3 19×a4b3 19×a3b3 19×a2b3 +
// a0b4 19×a4b4 19×a3b4 19×a2b4 19×a1b4 =
// --------------------------------------
// r4 r3 r2 r1 r0
//
// Finally we add up the columns into wide, overlapping limbs.
a1_19 := a1 * 19
a2_19 := a2 * 19
a3_19 := a3 * 19
a4_19 := a4 * 19
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
r0 := mul64(a0, b0)
r0 = addMul64(r0, a1_19, b4)
r0 = addMul64(r0, a2_19, b3)
r0 = addMul64(r0, a3_19, b2)
r0 = addMul64(r0, a4_19, b1)
// r1 = a0×b1 + a1×b0 + 19×(a2×b4 + a3×b3 + a4×b2)
r1 := mul64(a0, b1)
r1 = addMul64(r1, a1, b0)
r1 = addMul64(r1, a2_19, b4)
r1 = addMul64(r1, a3_19, b3)
r1 = addMul64(r1, a4_19, b2)
// r2 = a0×b2 + a1×b1 + a2×b0 + 19×(a3×b4 + a4×b3)
r2 := mul64(a0, b2)
r2 = addMul64(r2, a1, b1)
r2 = addMul64(r2, a2, b0)
r2 = addMul64(r2, a3_19, b4)
r2 = addMul64(r2, a4_19, b3)
// r3 = a0×b3 + a1×b2 + a2×b1 + a3×b0 + 19×a4×b4
r3 := mul64(a0, b3)
r3 = addMul64(r3, a1, b2)
r3 = addMul64(r3, a2, b1)
r3 = addMul64(r3, a3, b0)
r3 = addMul64(r3, a4_19, b4)
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
r4 := mul64(a0, b4)
r4 = addMul64(r4, a1, b3)
r4 = addMul64(r4, a2, b2)
r4 = addMul64(r4, a3, b1)
r4 = addMul64(r4, a4, b0)
// After the multiplication, we need to reduce (carry) the five coefficients
// to obtain a result with limbs that are at most slightly larger than 2⁵¹,
// to respect the Element invariant.
//
// Overall, the reduction works the same as carryPropagate, except with
// wider inputs: we take the carry for each coefficient by shifting it right
// by 51, and add it to the limb above it. The top carry is multiplied by 19
// according to the reduction identity and added to the lowest limb.
//
// The largest coefficient (r0) will be at most 111 bits, which guarantees
// that all carries are at most 111 - 51 = 60 bits, which fits in a uint64.
//
// r0 = a0×b0 + 19×(a1×b4 + a2×b3 + a3×b2 + a4×b1)
// r0 < 2⁵²×2⁵² + 19×(2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵² + 2⁵²×2⁵²)
// r0 < (1 + 19 × 4) × 2⁵² × 2⁵²
// r0 < 2⁷ × 2⁵² × 2⁵²
// r0 < 2¹¹¹
//
// Moreover, the top coefficient (r4) is at most 107 bits, so c4 is at most
// 56 bits, and c4 * 19 is at most 61 bits, which again fits in a uint64 and
// allows us to easily apply the reduction identity.
//
// r4 = a0×b4 + a1×b3 + a2×b2 + a3×b1 + a4×b0
// r4 < 5 × 2⁵² × 2⁵²
// r4 < 2¹⁰⁷
//
c0 := shiftRightBy51(r0)
c1 := shiftRightBy51(r1)
c2 := shiftRightBy51(r2)
c3 := shiftRightBy51(r3)
c4 := shiftRightBy51(r4)
rr0 := r0.lo&maskLow51Bits + c4*19
rr1 := r1.lo&maskLow51Bits + c0
rr2 := r2.lo&maskLow51Bits + c1
rr3 := r3.lo&maskLow51Bits + c2
rr4 := r4.lo&maskLow51Bits + c3
// Now all coefficients fit into 64-bit registers but are still too large to
// be passed around as an Element. We therefore do one last carry chain,
// where the carries will be small enough to fit in the wiggle room above 2⁵¹.
*v = Element{rr0, rr1, rr2, rr3, rr4}
v.carryPropagate()
}
func feSquareGeneric(v, a *Element) {
l0 := a.l0
l1 := a.l1
l2 := a.l2
l3 := a.l3
l4 := a.l4
// Squaring works precisely like multiplication above, but thanks to its
// symmetry we get to group a few terms together.
//
// l4 l3 l2 l1 l0 x
// l4 l3 l2 l1 l0 =
// ------------------------
// l4l0 l3l0 l2l0 l1l0 l0l0 +
// l4l1 l3l1 l2l1 l1l1 l0l1 +
// l4l2 l3l2 l2l2 l1l2 l0l2 +
// l4l3 l3l3 l2l3 l1l3 l0l3 +
// l4l4 l3l4 l2l4 l1l4 l0l4 =
// ----------------------------------------------
// r8 r7 r6 r5 r4 r3 r2 r1 r0
//
// l4l0 l3l0 l2l0 l1l0 l0l0 +
// l3l1 l2l1 l1l1 l0l1 19×l4l1 +
// l2l2 l1l2 l0l2 19×l4l2 19×l3l2 +
// l1l3 l0l3 19×l4l3 19×l3l3 19×l2l3 +
// l0l4 19×l4l4 19×l3l4 19×l2l4 19×l1l4 =
// --------------------------------------
// r4 r3 r2 r1 r0
//
// With precomputed 2×, 19×, and 2×19× terms, we can compute each limb with
// only three Mul64 and four Add64, instead of five and eight.
l0_2 := l0 * 2
l1_2 := l1 * 2
l1_38 := l1 * 38
l2_38 := l2 * 38
l3_38 := l3 * 38
l3_19 := l3 * 19
l4_19 := l4 * 19
// r0 = l0×l0 + 19×(l1×l4 + l2×l3 + l3×l2 + l4×l1) = l0×l0 + 19×2×(l1×l4 + l2×l3)
r0 := mul64(l0, l0)
r0 = addMul64(r0, l1_38, l4)
r0 = addMul64(r0, l2_38, l3)
// r1 = l0×l1 + l1×l0 + 19×(l2×l4 + l3×l3 + l4×l2) = 2×l0×l1 + 19×2×l2×l4 + 19×l3×l3
r1 := mul64(l0_2, l1)
r1 = addMul64(r1, l2_38, l4)
r1 = addMul64(r1, l3_19, l3)
// r2 = l0×l2 + l1×l1 + l2×l0 + 19×(l3×l4 + l4×l3) = 2×l0×l2 + l1×l1 + 19×2×l3×l4
r2 := mul64(l0_2, l2)
r2 = addMul64(r2, l1, l1)
r2 = addMul64(r2, l3_38, l4)
// r3 = l0×l3 + l1×l2 + l2×l1 + l3×l0 + 19×l4×l4 = 2×l0×l3 + 2×l1×l2 + 19×l4×l4
r3 := mul64(l0_2, l3)
r3 = addMul64(r3, l1_2, l2)
r3 = addMul64(r3, l4_19, l4)
// r4 = l0×l4 + l1×l3 + l2×l2 + l3×l1 + l4×l0 = 2×l0×l4 + 2×l1×l3 + l2×l2
r4 := mul64(l0_2, l4)
r4 = addMul64(r4, l1_2, l3)
r4 = addMul64(r4, l2, l2)
c0 := shiftRightBy51(r0)
c1 := shiftRightBy51(r1)
c2 := shiftRightBy51(r2)
c3 := shiftRightBy51(r3)
c4 := shiftRightBy51(r4)
rr0 := r0.lo&maskLow51Bits + c4*19
rr1 := r1.lo&maskLow51Bits + c0
rr2 := r2.lo&maskLow51Bits + c1
rr3 := r3.lo&maskLow51Bits + c2
rr4 := r4.lo&maskLow51Bits + c3
*v = Element{rr0, rr1, rr2, rr3, rr4}
v.carryPropagate()
}
// carryPropagateGeneric brings the limbs below 52 bits by applying the reduction
// identity (a * 2²⁵⁵ + b = a * 19 + b) to the l4 carry.
func (v *Element) carryPropagateGeneric() *Element {
c0 := v.l0 >> 51
c1 := v.l1 >> 51
c2 := v.l2 >> 51
c3 := v.l3 >> 51
c4 := v.l4 >> 51
// c4 is at most 64 - 51 = 13 bits, so c4*19 is at most 18 bits, and
// the final l0 will be at most 52 bits. Similarly for the rest.
v.l0 = v.l0&maskLow51Bits + c4*19
v.l1 = v.l1&maskLow51Bits + c0
v.l2 = v.l2&maskLow51Bits + c1
v.l3 = v.l3&maskLow51Bits + c2
v.l4 = v.l4&maskLow51Bits + c3
return v
}

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vendor/filippo.io/edwards25519/scalar.go generated vendored Normal file
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// Copyright (c) 2016 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"encoding/binary"
"errors"
)
// A Scalar is an integer modulo
//
// l = 2^252 + 27742317777372353535851937790883648493
//
// which is the prime order of the edwards25519 group.
//
// This type works similarly to math/big.Int, and all arguments and
// receivers are allowed to alias.
//
// The zero value is a valid zero element.
type Scalar struct {
// s is the scalar in the Montgomery domain, in the format of the
// fiat-crypto implementation.
s fiatScalarMontgomeryDomainFieldElement
}
// The field implementation in scalar_fiat.go is generated by the fiat-crypto
// project (https://github.com/mit-plv/fiat-crypto) at version v0.0.9 (23d2dbc)
// from a formally verified model.
//
// fiat-crypto code comes under the following license.
//
// Copyright (c) 2015-2020 The fiat-crypto Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// THIS SOFTWARE IS PROVIDED BY the fiat-crypto authors "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Berkeley Software Design,
// Inc. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// NewScalar returns a new zero Scalar.
func NewScalar() *Scalar {
return &Scalar{}
}
// MultiplyAdd sets s = x * y + z mod l, and returns s. It is equivalent to
// using Multiply and then Add.
func (s *Scalar) MultiplyAdd(x, y, z *Scalar) *Scalar {
// Make a copy of z in case it aliases s.
zCopy := new(Scalar).Set(z)
return s.Multiply(x, y).Add(s, zCopy)
}
// Add sets s = x + y mod l, and returns s.
func (s *Scalar) Add(x, y *Scalar) *Scalar {
// s = 1 * x + y mod l
fiatScalarAdd(&s.s, &x.s, &y.s)
return s
}
// Subtract sets s = x - y mod l, and returns s.
func (s *Scalar) Subtract(x, y *Scalar) *Scalar {
// s = -1 * y + x mod l
fiatScalarSub(&s.s, &x.s, &y.s)
return s
}
// Negate sets s = -x mod l, and returns s.
func (s *Scalar) Negate(x *Scalar) *Scalar {
// s = -1 * x + 0 mod l
fiatScalarOpp(&s.s, &x.s)
return s
}
// Multiply sets s = x * y mod l, and returns s.
func (s *Scalar) Multiply(x, y *Scalar) *Scalar {
// s = x * y + 0 mod l
fiatScalarMul(&s.s, &x.s, &y.s)
return s
}
// Set sets s = x, and returns s.
func (s *Scalar) Set(x *Scalar) *Scalar {
*s = *x
return s
}
// SetUniformBytes sets s = x mod l, where x is a 64-byte little-endian integer.
// If x is not of the right length, SetUniformBytes returns nil and an error,
// and the receiver is unchanged.
//
// SetUniformBytes can be used to set s to a uniformly distributed value given
// 64 uniformly distributed random bytes.
func (s *Scalar) SetUniformBytes(x []byte) (*Scalar, error) {
if len(x) != 64 {
return nil, errors.New("edwards25519: invalid SetUniformBytes input length")
}
// We have a value x of 512 bits, but our fiatScalarFromBytes function
// expects an input lower than l, which is a little over 252 bits.
//
// Instead of writing a reduction function that operates on wider inputs, we
// can interpret x as the sum of three shorter values a, b, and c.
//
// x = a + b * 2^168 + c * 2^336 mod l
//
// We then precompute 2^168 and 2^336 modulo l, and perform the reduction
// with two multiplications and two additions.
s.setShortBytes(x[:21])
t := new(Scalar).setShortBytes(x[21:42])
s.Add(s, t.Multiply(t, scalarTwo168))
t.setShortBytes(x[42:])
s.Add(s, t.Multiply(t, scalarTwo336))
return s, nil
}
// scalarTwo168 and scalarTwo336 are 2^168 and 2^336 modulo l, encoded as a
// fiatScalarMontgomeryDomainFieldElement, which is a little-endian 4-limb value
// in the 2^256 Montgomery domain.
var scalarTwo168 = &Scalar{s: [4]uint64{0x5b8ab432eac74798, 0x38afddd6de59d5d7,
0xa2c131b399411b7c, 0x6329a7ed9ce5a30}}
var scalarTwo336 = &Scalar{s: [4]uint64{0xbd3d108e2b35ecc5, 0x5c3a3718bdf9c90b,
0x63aa97a331b4f2ee, 0x3d217f5be65cb5c}}
// setShortBytes sets s = x mod l, where x is a little-endian integer shorter
// than 32 bytes.
func (s *Scalar) setShortBytes(x []byte) *Scalar {
if len(x) >= 32 {
panic("edwards25519: internal error: setShortBytes called with a long string")
}
var buf [32]byte
copy(buf[:], x)
fiatScalarFromBytes((*[4]uint64)(&s.s), &buf)
fiatScalarToMontgomery(&s.s, (*fiatScalarNonMontgomeryDomainFieldElement)(&s.s))
return s
}
// SetCanonicalBytes sets s = x, where x is a 32-byte little-endian encoding of
// s, and returns s. If x is not a canonical encoding of s, SetCanonicalBytes
// returns nil and an error, and the receiver is unchanged.
func (s *Scalar) SetCanonicalBytes(x []byte) (*Scalar, error) {
if len(x) != 32 {
return nil, errors.New("invalid scalar length")
}
if !isReduced(x) {
return nil, errors.New("invalid scalar encoding")
}
fiatScalarFromBytes((*[4]uint64)(&s.s), (*[32]byte)(x))
fiatScalarToMontgomery(&s.s, (*fiatScalarNonMontgomeryDomainFieldElement)(&s.s))
return s, nil
}
// scalarMinusOneBytes is l - 1 in little endian.
var scalarMinusOneBytes = [32]byte{236, 211, 245, 92, 26, 99, 18, 88, 214, 156, 247, 162, 222, 249, 222, 20, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16}
// isReduced returns whether the given scalar in 32-byte little endian encoded
// form is reduced modulo l.
func isReduced(s []byte) bool {
if len(s) != 32 {
return false
}
for i := len(s) - 1; i >= 0; i-- {
switch {
case s[i] > scalarMinusOneBytes[i]:
return false
case s[i] < scalarMinusOneBytes[i]:
return true
}
}
return true
}
// SetBytesWithClamping applies the buffer pruning described in RFC 8032,
// Section 5.1.5 (also known as clamping) and sets s to the result. The input
// must be 32 bytes, and it is not modified. If x is not of the right length,
// SetBytesWithClamping returns nil and an error, and the receiver is unchanged.
//
// Note that since Scalar values are always reduced modulo the prime order of
// the curve, the resulting value will not preserve any of the cofactor-clearing
// properties that clamping is meant to provide. It will however work as
// expected as long as it is applied to points on the prime order subgroup, like
// in Ed25519. In fact, it is lost to history why RFC 8032 adopted the
// irrelevant RFC 7748 clamping, but it is now required for compatibility.
func (s *Scalar) SetBytesWithClamping(x []byte) (*Scalar, error) {
// The description above omits the purpose of the high bits of the clamping
// for brevity, but those are also lost to reductions, and are also
// irrelevant to edwards25519 as they protect against a specific
// implementation bug that was once observed in a generic Montgomery ladder.
if len(x) != 32 {
return nil, errors.New("edwards25519: invalid SetBytesWithClamping input length")
}
// We need to use the wide reduction from SetUniformBytes, since clamping
// sets the 2^254 bit, making the value higher than the order.
var wideBytes [64]byte
copy(wideBytes[:], x[:])
wideBytes[0] &= 248
wideBytes[31] &= 63
wideBytes[31] |= 64
return s.SetUniformBytes(wideBytes[:])
}
// Bytes returns the canonical 32-byte little-endian encoding of s.
func (s *Scalar) Bytes() []byte {
// This function is outlined to make the allocations inline in the caller
// rather than happen on the heap.
var encoded [32]byte
return s.bytes(&encoded)
}
func (s *Scalar) bytes(out *[32]byte) []byte {
var ss fiatScalarNonMontgomeryDomainFieldElement
fiatScalarFromMontgomery(&ss, &s.s)
fiatScalarToBytes(out, (*[4]uint64)(&ss))
return out[:]
}
// Equal returns 1 if s and t are equal, and 0 otherwise.
func (s *Scalar) Equal(t *Scalar) int {
var diff fiatScalarMontgomeryDomainFieldElement
fiatScalarSub(&diff, &s.s, &t.s)
var nonzero uint64
fiatScalarNonzero(&nonzero, (*[4]uint64)(&diff))
nonzero |= nonzero >> 32
nonzero |= nonzero >> 16
nonzero |= nonzero >> 8
nonzero |= nonzero >> 4
nonzero |= nonzero >> 2
nonzero |= nonzero >> 1
return int(^nonzero) & 1
}
// nonAdjacentForm computes a width-w non-adjacent form for this scalar.
//
// w must be between 2 and 8, or nonAdjacentForm will panic.
func (s *Scalar) nonAdjacentForm(w uint) [256]int8 {
// This implementation is adapted from the one
// in curve25519-dalek and is documented there:
// https://github.com/dalek-cryptography/curve25519-dalek/blob/f630041af28e9a405255f98a8a93adca18e4315b/src/scalar.rs#L800-L871
b := s.Bytes()
if b[31] > 127 {
panic("scalar has high bit set illegally")
}
if w < 2 {
panic("w must be at least 2 by the definition of NAF")
} else if w > 8 {
panic("NAF digits must fit in int8")
}
var naf [256]int8
var digits [5]uint64
for i := 0; i < 4; i++ {
digits[i] = binary.LittleEndian.Uint64(b[i*8:])
}
width := uint64(1 << w)
windowMask := uint64(width - 1)
pos := uint(0)
carry := uint64(0)
for pos < 256 {
indexU64 := pos / 64
indexBit := pos % 64
var bitBuf uint64
if indexBit < 64-w {
// This window's bits are contained in a single u64
bitBuf = digits[indexU64] >> indexBit
} else {
// Combine the current 64 bits with bits from the next 64
bitBuf = (digits[indexU64] >> indexBit) | (digits[1+indexU64] << (64 - indexBit))
}
// Add carry into the current window
window := carry + (bitBuf & windowMask)
if window&1 == 0 {
// If the window value is even, preserve the carry and continue.
// Why is the carry preserved?
// If carry == 0 and window & 1 == 0,
// then the next carry should be 0
// If carry == 1 and window & 1 == 0,
// then bit_buf & 1 == 1 so the next carry should be 1
pos += 1
continue
}
if window < width/2 {
carry = 0
naf[pos] = int8(window)
} else {
carry = 1
naf[pos] = int8(window) - int8(width)
}
pos += w
}
return naf
}
func (s *Scalar) signedRadix16() [64]int8 {
b := s.Bytes()
if b[31] > 127 {
panic("scalar has high bit set illegally")
}
var digits [64]int8
// Compute unsigned radix-16 digits:
for i := 0; i < 32; i++ {
digits[2*i] = int8(b[i] & 15)
digits[2*i+1] = int8((b[i] >> 4) & 15)
}
// Recenter coefficients:
for i := 0; i < 63; i++ {
carry := (digits[i] + 8) >> 4
digits[i] -= carry << 4
digits[i+1] += carry
}
return digits
}

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vendor/filippo.io/edwards25519/scalar_fiat.go generated vendored Normal file
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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import "sync"
// basepointTable is a set of 32 affineLookupTables, where table i is generated
// from 256i * basepoint. It is precomputed the first time it's used.
func basepointTable() *[32]affineLookupTable {
basepointTablePrecomp.initOnce.Do(func() {
p := NewGeneratorPoint()
for i := 0; i < 32; i++ {
basepointTablePrecomp.table[i].FromP3(p)
for j := 0; j < 8; j++ {
p.Add(p, p)
}
}
})
return &basepointTablePrecomp.table
}
var basepointTablePrecomp struct {
table [32]affineLookupTable
initOnce sync.Once
}
// ScalarBaseMult sets v = x * B, where B is the canonical generator, and
// returns v.
//
// The scalar multiplication is done in constant time.
func (v *Point) ScalarBaseMult(x *Scalar) *Point {
basepointTable := basepointTable()
// Write x = sum(x_i * 16^i) so x*B = sum( B*x_i*16^i )
// as described in the Ed25519 paper
//
// Group even and odd coefficients
// x*B = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
// + x_1*16^1*B + x_3*16^3*B + ... + x_63*16^63*B
// x*B = x_0*16^0*B + x_2*16^2*B + ... + x_62*16^62*B
// + 16*( x_1*16^0*B + x_3*16^2*B + ... + x_63*16^62*B)
//
// We use a lookup table for each i to get x_i*16^(2*i)*B
// and do four doublings to multiply by 16.
digits := x.signedRadix16()
multiple := &affineCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
// Accumulate the odd components first
v.Set(NewIdentityPoint())
for i := 1; i < 64; i += 2 {
basepointTable[i/2].SelectInto(multiple, digits[i])
tmp1.AddAffine(v, multiple)
v.fromP1xP1(tmp1)
}
// Multiply by 16
tmp2.FromP3(v) // tmp2 = v in P2 coords
tmp1.Double(tmp2) // tmp1 = 2*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*v in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*v in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*v in P1xP1 coords
v.fromP1xP1(tmp1) // now v = 16*(odd components)
// Accumulate the even components
for i := 0; i < 64; i += 2 {
basepointTable[i/2].SelectInto(multiple, digits[i])
tmp1.AddAffine(v, multiple)
v.fromP1xP1(tmp1)
}
return v
}
// ScalarMult sets v = x * q, and returns v.
//
// The scalar multiplication is done in constant time.
func (v *Point) ScalarMult(x *Scalar, q *Point) *Point {
checkInitialized(q)
var table projLookupTable
table.FromP3(q)
// Write x = sum(x_i * 16^i)
// so x*Q = sum( Q*x_i*16^i )
// = Q*x_0 + 16*(Q*x_1 + 16*( ... + Q*x_63) ... )
// <------compute inside out---------
//
// We use the lookup table to get the x_i*Q values
// and do four doublings to compute 16*Q
digits := x.signedRadix16()
// Unwrap first loop iteration to save computing 16*identity
multiple := &projCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
table.SelectInto(multiple, digits[63])
v.Set(NewIdentityPoint())
tmp1.Add(v, multiple) // tmp1 = x_63*Q in P1xP1 coords
for i := 62; i >= 0; i-- {
tmp2.FromP1xP1(tmp1) // tmp2 = (prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 2*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 2*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 4*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 4*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 8*(prev) in P1xP1 coords
tmp2.FromP1xP1(tmp1) // tmp2 = 8*(prev) in P2 coords
tmp1.Double(tmp2) // tmp1 = 16*(prev) in P1xP1 coords
v.fromP1xP1(tmp1) // v = 16*(prev) in P3 coords
table.SelectInto(multiple, digits[i])
tmp1.Add(v, multiple) // tmp1 = x_i*Q + 16*(prev) in P1xP1 coords
}
v.fromP1xP1(tmp1)
return v
}
// basepointNafTable is the nafLookupTable8 for the basepoint.
// It is precomputed the first time it's used.
func basepointNafTable() *nafLookupTable8 {
basepointNafTablePrecomp.initOnce.Do(func() {
basepointNafTablePrecomp.table.FromP3(NewGeneratorPoint())
})
return &basepointNafTablePrecomp.table
}
var basepointNafTablePrecomp struct {
table nafLookupTable8
initOnce sync.Once
}
// VarTimeDoubleScalarBaseMult sets v = a * A + b * B, where B is the canonical
// generator, and returns v.
//
// Execution time depends on the inputs.
func (v *Point) VarTimeDoubleScalarBaseMult(a *Scalar, A *Point, b *Scalar) *Point {
checkInitialized(A)
// Similarly to the single variable-base approach, we compute
// digits and use them with a lookup table. However, because
// we are allowed to do variable-time operations, we don't
// need constant-time lookups or constant-time digit
// computations.
//
// So we use a non-adjacent form of some width w instead of
// radix 16. This is like a binary representation (one digit
// for each binary place) but we allow the digits to grow in
// magnitude up to 2^{w-1} so that the nonzero digits are as
// sparse as possible. Intuitively, this "condenses" the
// "mass" of the scalar onto sparse coefficients (meaning
// fewer additions).
basepointNafTable := basepointNafTable()
var aTable nafLookupTable5
aTable.FromP3(A)
// Because the basepoint is fixed, we can use a wider NAF
// corresponding to a bigger table.
aNaf := a.nonAdjacentForm(5)
bNaf := b.nonAdjacentForm(8)
// Find the first nonzero coefficient.
i := 255
for j := i; j >= 0; j-- {
if aNaf[j] != 0 || bNaf[j] != 0 {
break
}
}
multA := &projCached{}
multB := &affineCached{}
tmp1 := &projP1xP1{}
tmp2 := &projP2{}
tmp2.Zero()
// Move from high to low bits, doubling the accumulator
// at each iteration and checking whether there is a nonzero
// coefficient to look up a multiple of.
for ; i >= 0; i-- {
tmp1.Double(tmp2)
// Only update v if we have a nonzero coeff to add in.
if aNaf[i] > 0 {
v.fromP1xP1(tmp1)
aTable.SelectInto(multA, aNaf[i])
tmp1.Add(v, multA)
} else if aNaf[i] < 0 {
v.fromP1xP1(tmp1)
aTable.SelectInto(multA, -aNaf[i])
tmp1.Sub(v, multA)
}
if bNaf[i] > 0 {
v.fromP1xP1(tmp1)
basepointNafTable.SelectInto(multB, bNaf[i])
tmp1.AddAffine(v, multB)
} else if bNaf[i] < 0 {
v.fromP1xP1(tmp1)
basepointNafTable.SelectInto(multB, -bNaf[i])
tmp1.SubAffine(v, multB)
}
tmp2.FromP1xP1(tmp1)
}
v.fromP2(tmp2)
return v
}

129
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// Copyright (c) 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package edwards25519
import (
"crypto/subtle"
)
// A dynamic lookup table for variable-base, constant-time scalar muls.
type projLookupTable struct {
points [8]projCached
}
// A precomputed lookup table for fixed-base, constant-time scalar muls.
type affineLookupTable struct {
points [8]affineCached
}
// A dynamic lookup table for variable-base, variable-time scalar muls.
type nafLookupTable5 struct {
points [8]projCached
}
// A precomputed lookup table for fixed-base, variable-time scalar muls.
type nafLookupTable8 struct {
points [64]affineCached
}
// Constructors.
// Builds a lookup table at runtime. Fast.
func (v *projLookupTable) FromP3(q *Point) {
// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
v.points[0].FromP3(q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
// Compute (i+1)*Q as Q + i*Q and convert to a projCached
// This is needlessly complicated because the API has explicit
// receivers instead of creating stack objects and relying on RVO
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(q, &v.points[i])))
}
}
// This is not optimised for speed; fixed-base tables should be precomputed.
func (v *affineLookupTable) FromP3(q *Point) {
// Goal: v.points[i] = (i+1)*Q, i.e., Q, 2Q, ..., 8Q
// This allows lookup of -8Q, ..., -Q, 0, Q, ..., 8Q
v.points[0].FromP3(q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
// Compute (i+1)*Q as Q + i*Q and convert to affineCached
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(q, &v.points[i])))
}
}
// Builds a lookup table at runtime. Fast.
func (v *nafLookupTable5) FromP3(q *Point) {
// Goal: v.points[i] = (2*i+1)*Q, i.e., Q, 3Q, 5Q, ..., 15Q
// This allows lookup of -15Q, ..., -3Q, -Q, 0, Q, 3Q, ..., 15Q
v.points[0].FromP3(q)
q2 := Point{}
q2.Add(q, q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 7; i++ {
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.Add(&q2, &v.points[i])))
}
}
// This is not optimised for speed; fixed-base tables should be precomputed.
func (v *nafLookupTable8) FromP3(q *Point) {
v.points[0].FromP3(q)
q2 := Point{}
q2.Add(q, q)
tmpP3 := Point{}
tmpP1xP1 := projP1xP1{}
for i := 0; i < 63; i++ {
v.points[i+1].FromP3(tmpP3.fromP1xP1(tmpP1xP1.AddAffine(&q2, &v.points[i])))
}
}
// Selectors.
// Set dest to x*Q, where -8 <= x <= 8, in constant time.
func (v *projLookupTable) SelectInto(dest *projCached, x int8) {
// Compute xabs = |x|
xmask := x >> 7
xabs := uint8((x + xmask) ^ xmask)
dest.Zero()
for j := 1; j <= 8; j++ {
// Set dest = j*Q if |x| = j
cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
dest.Select(&v.points[j-1], dest, cond)
}
// Now dest = |x|*Q, conditionally negate to get x*Q
dest.CondNeg(int(xmask & 1))
}
// Set dest to x*Q, where -8 <= x <= 8, in constant time.
func (v *affineLookupTable) SelectInto(dest *affineCached, x int8) {
// Compute xabs = |x|
xmask := x >> 7
xabs := uint8((x + xmask) ^ xmask)
dest.Zero()
for j := 1; j <= 8; j++ {
// Set dest = j*Q if |x| = j
cond := subtle.ConstantTimeByteEq(xabs, uint8(j))
dest.Select(&v.points[j-1], dest, cond)
}
// Now dest = |x|*Q, conditionally negate to get x*Q
dest.CondNeg(int(xmask & 1))
}
// Given odd x with 0 < x < 2^4, return x*Q (in variable time).
func (v *nafLookupTable5) SelectInto(dest *projCached, x int8) {
*dest = v.points[x/2]
}
// Given odd x with 0 < x < 2^7, return x*Q (in variable time).
func (v *nafLookupTable8) SelectInto(dest *affineCached, x int8) {
*dest = v.points[x/2]
}

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vendor/github.com/matrix-org/gomatrix/.gitignore generated vendored
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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
*.out
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof
# test editor files
*.swp

21
vendor/github.com/matrix-org/gomatrix/.golangci.yml generated vendored
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@@ -1,21 +0,0 @@
run:
timeout: 5m
linters:
enable:
- vet
- vetshadow
- typecheck
- deadcode
- gocyclo
- golint
- varcheck
- structcheck
- maligned
- ineffassign
- misspell
- unparam
- goimports
- goconst
- unconvert
- errcheck
- interfacer

7
vendor/github.com/matrix-org/gomatrix/.travis.yml generated vendored
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language: go
go:
- 1.13.10
install:
- go get github.com/golangci/golangci-lint/cmd/golangci-lint@v1.24.0
- go build
script: ./hooks/pre-commit

1
vendor/github.com/matrix-org/gomatrix/CHANGELOG.md generated vendored
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@@ -1 +0,0 @@
## Release 0.1.0 (UNRELEASED)

201
vendor/github.com/matrix-org/gomatrix/LICENSE generated vendored
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@@ -1,201 +0,0 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
"License" shall mean the terms and conditions for use, reproduction,
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"You" (or "Your") shall mean an individual or Legal Entity
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not limited to compiled object code, generated documentation,
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"Work" shall mean the work of authorship, whether in Source or
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"Derivative Works" shall mean any work, whether in Source or Object
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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71
vendor/github.com/matrix-org/gomatrix/README.md generated vendored
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@@ -1,71 +0,0 @@
# gomatrix
[![GoDoc](https://godoc.org/github.com/matrix-org/gomatrix?status.svg)](https://godoc.org/github.com/matrix-org/gomatrix)
A Golang Matrix client.
**THIS IS UNDER ACTIVE DEVELOPMENT: BREAKING CHANGES ARE FREQUENT.**
# Contributing
All contributions are greatly appreciated!
## How to report issues
Please check the current open issues for similar reports
in order to avoid duplicates.
Some general guidelines:
- Include a [minimal reproducible example](https://stackoverflow.com/help/minimal-reproducible-example) when possible.
- Describe the expected behaviour and what actually happened
including a full trace-back in case of exceptions.
- Make sure to list details about your environment
## Setting up your environment
If you intend to contribute to gomatrix you'll first need Go installed on your machine (version 1.12+ is required). Also, make sure to have golangci-lint properly set up since we use it for pre-commit hooks (for instructions on how to install it, check the [official docs](https://golangci-lint.run/usage/install/#local-installation)).
- Fork gomatrix to your GitHub account by clicking the [Fork](https://github.com/matrix-org/gomatrix/fork) button.
- [Clone](https://help.github.com/en/articles/fork-a-repo#step-2-create-a-local-clone-of-your-fork) the main repository (not your fork) to your local machine.
$ git clone https://github.com/matrix-org/gomatrix
$ cd gomatrix
- Add your fork as a remote to push your contributions.Replace
``{username}`` with your username.
git remote add fork https://github.com/{username}/gomatrix
- Create a new branch to identify what feature you are working on.
$ git fetch origin
$ git checkout -b your-branch-name origin/master
- Make your changes, including tests that cover any code changes you make, and run them as described below.
- Execute pre-commit hooks by running
<gomatrix dir>/hooks/pre-commit
- Push your changes to your fork and [create a pull request](https://help.github.com/en/articles/creating-a-pull-request) describing your changes.
$ git push --set-upstream fork your-branch-name
- Finally, create a [pull request](https://docs.github.com/en/github/collaborating-with-issues-and-pull-requests/about-pull-requests)
## How to run tests
You can run the test suite and example code with `$ go test -v`
# Running Coverage
To run coverage, first generate the coverage report using `go test`
go test -v -cover -coverprofile=coverage.out
You can now show the generated report as a html page with `go tool`
go tool cover -html=coverage.out

805
vendor/github.com/matrix-org/gomatrix/client.go generated vendored
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@@ -1,805 +0,0 @@
// Package gomatrix implements the Matrix Client-Server API.
//
// Specification can be found at http://matrix.org/docs/spec/client_server/r0.2.0.html
package gomatrix
import (
"bytes"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"sync"
"time"
)
// Client represents a Matrix client.
type Client struct {
HomeserverURL *url.URL // The base homeserver URL
Prefix string // The API prefix eg '/_matrix/client/r0'
UserID string // The user ID of the client. Used for forming HTTP paths which use the client's user ID.
AccessToken string // The access_token for the client.
Client *http.Client // The underlying HTTP client which will be used to make HTTP requests.
Syncer Syncer // The thing which can process /sync responses
Store Storer // The thing which can store rooms/tokens/ids
// The ?user_id= query parameter for application services. This must be set *prior* to calling a method. If this is empty,
// no user_id parameter will be sent.
// See http://matrix.org/docs/spec/application_service/unstable.html#identity-assertion
AppServiceUserID string
syncingMutex sync.Mutex // protects syncingID
syncingID uint32 // Identifies the current Sync. Only one Sync can be active at any given time.
}
// HTTPError An HTTP Error response, which may wrap an underlying native Go Error.
type HTTPError struct {
Contents []byte
WrappedError error
Message string
Code int
}
func (e HTTPError) Error() string {
var wrappedErrMsg string
if e.WrappedError != nil {
wrappedErrMsg = e.WrappedError.Error()
}
return fmt.Sprintf("contents=%v msg=%s code=%d wrapped=%s", e.Contents, e.Message, e.Code, wrappedErrMsg)
}
// BuildURL builds a URL with the Client's homeserver/prefix set already.
func (cli *Client) BuildURL(urlPath ...string) string {
ps := append([]string{cli.Prefix}, urlPath...)
return cli.BuildBaseURL(ps...)
}
// BuildBaseURL builds a URL with the Client's homeserver set already. You must
// supply the prefix in the path.
func (cli *Client) BuildBaseURL(urlPath ...string) string {
// copy the URL. Purposefully ignore error as the input is from a valid URL already
hsURL, _ := url.Parse(cli.HomeserverURL.String())
parts := []string{hsURL.Path}
parts = append(parts, urlPath...)
hsURL.Path = path.Join(parts...)
// Manually add the trailing slash back to the end of the path if it's explicitly needed
if strings.HasSuffix(urlPath[len(urlPath)-1], "/") {
hsURL.Path = hsURL.Path + "/"
}
query := hsURL.Query()
if cli.AppServiceUserID != "" {
query.Set("user_id", cli.AppServiceUserID)
}
hsURL.RawQuery = query.Encode()
return hsURL.String()
}
// BuildURLWithQuery builds a URL with query parameters in addition to the Client's homeserver/prefix set already.
func (cli *Client) BuildURLWithQuery(urlPath []string, urlQuery map[string]string) string {
u, _ := url.Parse(cli.BuildURL(urlPath...))
q := u.Query()
for k, v := range urlQuery {
q.Set(k, v)
}
u.RawQuery = q.Encode()
return u.String()
}
// SetCredentials sets the user ID and access token on this client instance.
func (cli *Client) SetCredentials(userID, accessToken string) {
cli.AccessToken = accessToken
cli.UserID = userID
}
// ClearCredentials removes the user ID and access token on this client instance.
func (cli *Client) ClearCredentials() {
cli.AccessToken = ""
cli.UserID = ""
}
// Sync starts syncing with the provided Homeserver. If Sync() is called twice then the first sync will be stopped and the
// error will be nil.
//
// This function will block until a fatal /sync error occurs, so it should almost always be started as a new goroutine.
// Fatal sync errors can be caused by:
// - The failure to create a filter.
// - Client.Syncer.OnFailedSync returning an error in response to a failed sync.
// - Client.Syncer.ProcessResponse returning an error.
// If you wish to continue retrying in spite of these fatal errors, call Sync() again.
func (cli *Client) Sync() error {
// Mark the client as syncing.
// We will keep syncing until the syncing state changes. Either because
// Sync is called or StopSync is called.
syncingID := cli.incrementSyncingID()
nextBatch := cli.Store.LoadNextBatch(cli.UserID)
filterID := cli.Store.LoadFilterID(cli.UserID)
if filterID == "" {
filterJSON := cli.Syncer.GetFilterJSON(cli.UserID)
resFilter, err := cli.CreateFilter(filterJSON)
if err != nil {
return err
}
filterID = resFilter.FilterID
cli.Store.SaveFilterID(cli.UserID, filterID)
}
for {
resSync, err := cli.SyncRequest(30000, nextBatch, filterID, false, "")
if err != nil {
duration, err2 := cli.Syncer.OnFailedSync(resSync, err)
if err2 != nil {
return err2
}
time.Sleep(duration)
continue
}
// Check that the syncing state hasn't changed
// Either because we've stopped syncing or another sync has been started.
// We discard the response from our sync.
if cli.getSyncingID() != syncingID {
return nil
}
// Save the token now *before* processing it. This means it's possible
// to not process some events, but it means that we won't get constantly stuck processing
// a malformed/buggy event which keeps making us panic.
cli.Store.SaveNextBatch(cli.UserID, resSync.NextBatch)
if err = cli.Syncer.ProcessResponse(resSync, nextBatch); err != nil {
return err
}
nextBatch = resSync.NextBatch
}
}
func (cli *Client) incrementSyncingID() uint32 {
cli.syncingMutex.Lock()
defer cli.syncingMutex.Unlock()
cli.syncingID++
return cli.syncingID
}
func (cli *Client) getSyncingID() uint32 {
cli.syncingMutex.Lock()
defer cli.syncingMutex.Unlock()
return cli.syncingID
}
// StopSync stops the ongoing sync started by Sync.
func (cli *Client) StopSync() {
// Advance the syncing state so that any running Syncs will terminate.
cli.incrementSyncingID()
}
// MakeRequest makes a JSON HTTP request to the given URL.
// The response body will be stream decoded into an interface. This will automatically stop if the response
// body is nil.
//
// Returns an error if the response is not 2xx along with the HTTP body bytes if it got that far. This error is
// an HTTPError which includes the returned HTTP status code, byte contents of the response body and possibly a
// RespError as the WrappedError, if the HTTP body could be decoded as a RespError.
func (cli *Client) MakeRequest(method string, httpURL string, reqBody interface{}, resBody interface{}) error {
var req *http.Request
var err error
if reqBody != nil {
buf := new(bytes.Buffer)
if err := json.NewEncoder(buf).Encode(reqBody); err != nil {
return err
}
req, err = http.NewRequest(method, httpURL, buf)
} else {
req, err = http.NewRequest(method, httpURL, nil)
}
if err != nil {
return err
}
req.Header.Set("Content-Type", "application/json")
if cli.AccessToken != "" {
req.Header.Set("Authorization", "Bearer "+cli.AccessToken)
}
res, err := cli.Client.Do(req)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return err
}
if res.StatusCode/100 != 2 { // not 2xx
contents, err := ioutil.ReadAll(res.Body)
if err != nil {
return err
}
var wrap error
var respErr RespError
if _ = json.Unmarshal(contents, &respErr); respErr.ErrCode != "" {
wrap = respErr
}
// If we failed to decode as RespError, don't just drop the HTTP body, include it in the
// HTTP error instead (e.g proxy errors which return HTML).
msg := "Failed to " + method + " JSON to " + req.URL.Path
if wrap == nil {
msg = msg + ": " + string(contents)
}
return HTTPError{
Contents: contents,
Code: res.StatusCode,
Message: msg,
WrappedError: wrap,
}
}
if resBody != nil && res.Body != nil {
return json.NewDecoder(res.Body).Decode(&resBody)
}
return nil
}
// CreateFilter makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
func (cli *Client) CreateFilter(filter json.RawMessage) (resp *RespCreateFilter, err error) {
urlPath := cli.BuildURL("user", cli.UserID, "filter")
err = cli.MakeRequest("POST", urlPath, &filter, &resp)
return
}
// SyncRequest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
func (cli *Client) SyncRequest(timeout int, since, filterID string, fullState bool, setPresence string) (resp *RespSync, err error) {
query := map[string]string{
"timeout": strconv.Itoa(timeout),
}
if since != "" {
query["since"] = since
}
if filterID != "" {
query["filter"] = filterID
}
if setPresence != "" {
query["set_presence"] = setPresence
}
if fullState {
query["full_state"] = "true"
}
urlPath := cli.BuildURLWithQuery([]string{"sync"}, query)
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
func (cli *Client) register(u string, req *ReqRegister) (resp *RespRegister, uiaResp *RespUserInteractive, err error) {
err = cli.MakeRequest("POST", u, req, &resp)
if err != nil {
httpErr, ok := err.(HTTPError)
if !ok { // network error
return
}
if httpErr.Code == 401 {
// body should be RespUserInteractive, if it isn't, fail with the error
err = json.Unmarshal(httpErr.Contents, &uiaResp)
return
}
}
return
}
// Register makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
//
// Registers with kind=user. For kind=guest, see RegisterGuest.
func (cli *Client) Register(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
u := cli.BuildURL("register")
return cli.register(u, req)
}
// RegisterGuest makes an HTTP request according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
// with kind=guest.
//
// For kind=user, see Register.
func (cli *Client) RegisterGuest(req *ReqRegister) (*RespRegister, *RespUserInteractive, error) {
query := map[string]string{
"kind": "guest",
}
u := cli.BuildURLWithQuery([]string{"register"}, query)
return cli.register(u, req)
}
// RegisterDummy performs m.login.dummy registration according to https://matrix.org/docs/spec/client_server/r0.2.0.html#dummy-auth
//
// Only a username and password need to be provided on the ReqRegister struct. Most local/developer homeservers will allow registration
// this way. If the homeserver does not, an error is returned.
//
// This does not set credentials on the client instance. See SetCredentials() instead.
//
// res, err := cli.RegisterDummy(&gomatrix.ReqRegister{
// Username: "alice",
// Password: "wonderland",
// })
// if err != nil {
// panic(err)
// }
// token := res.AccessToken
func (cli *Client) RegisterDummy(req *ReqRegister) (*RespRegister, error) {
res, uia, err := cli.Register(req)
if err != nil && uia == nil {
return nil, err
}
if uia != nil && uia.HasSingleStageFlow("m.login.dummy") {
req.Auth = struct {
Type string `json:"type"`
Session string `json:"session,omitempty"`
}{"m.login.dummy", uia.Session}
res, _, err = cli.Register(req)
if err != nil {
return nil, err
}
}
if res == nil {
return nil, fmt.Errorf("registration failed: does this server support m.login.dummy?")
}
return res, nil
}
// Login a user to the homeserver according to http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-login
// This does not set credentials on this client instance. See SetCredentials() instead.
func (cli *Client) Login(req *ReqLogin) (resp *RespLogin, err error) {
urlPath := cli.BuildURL("login")
err = cli.MakeRequest("POST", urlPath, req, &resp)
return
}
// Logout the current user. See http://matrix.org/docs/spec/client_server/r0.6.0.html#post-matrix-client-r0-logout
// This does not clear the credentials from the client instance. See ClearCredentials() instead.
func (cli *Client) Logout() (resp *RespLogout, err error) {
urlPath := cli.BuildURL("logout")
err = cli.MakeRequest("POST", urlPath, nil, &resp)
return
}
// LogoutAll logs the current user out on all devices. See https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-r0-logout-all
// This does not clear the credentials from the client instance. See ClearCredentails() instead.
func (cli *Client) LogoutAll() (resp *RespLogoutAll, err error) {
urlPath := cli.BuildURL("logout/all")
err = cli.MakeRequest("POST", urlPath, nil, &resp)
return
}
// Versions returns the list of supported Matrix versions on this homeserver. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
func (cli *Client) Versions() (resp *RespVersions, err error) {
urlPath := cli.BuildBaseURL("_matrix", "client", "versions")
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// PublicRooms returns the list of public rooms on target server. See https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-unstable-publicrooms
func (cli *Client) PublicRooms(limit int, since string, server string) (resp *RespPublicRooms, err error) {
args := map[string]string{}
if limit != 0 {
args["limit"] = strconv.Itoa(limit)
}
if since != "" {
args["since"] = since
}
if server != "" {
args["server"] = server
}
urlPath := cli.BuildURLWithQuery([]string{"publicRooms"}, args)
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// PublicRoomsFiltered returns a subset of PublicRooms filtered server side.
// See https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-unstable-publicrooms
func (cli *Client) PublicRoomsFiltered(limit int, since string, server string, filter string) (resp *RespPublicRooms, err error) {
content := map[string]string{}
if limit != 0 {
content["limit"] = strconv.Itoa(limit)
}
if since != "" {
content["since"] = since
}
if filter != "" {
content["filter"] = filter
}
var urlPath string
if server == "" {
urlPath = cli.BuildURL("publicRooms")
} else {
urlPath = cli.BuildURLWithQuery([]string{"publicRooms"}, map[string]string{
"server": server,
})
}
err = cli.MakeRequest("POST", urlPath, content, &resp)
return
}
// JoinRoom joins the client to a room ID or alias. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-join-roomidoralias
//
// If serverName is specified, this will be added as a query param to instruct the homeserver to join via that server. If content is specified, it will
// be JSON encoded and used as the request body.
func (cli *Client) JoinRoom(roomIDorAlias, serverName string, content interface{}) (resp *RespJoinRoom, err error) {
var urlPath string
if serverName != "" {
urlPath = cli.BuildURLWithQuery([]string{"join", roomIDorAlias}, map[string]string{
"server_name": serverName,
})
} else {
urlPath = cli.BuildURL("join", roomIDorAlias)
}
err = cli.MakeRequest("POST", urlPath, content, &resp)
return
}
// GetDisplayName returns the display name of the user from the specified MXID. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
func (cli *Client) GetDisplayName(mxid string) (resp *RespUserDisplayName, err error) {
urlPath := cli.BuildURL("profile", mxid, "displayname")
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// GetOwnDisplayName returns the user's display name. See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
func (cli *Client) GetOwnDisplayName() (resp *RespUserDisplayName, err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// SetDisplayName sets the user's profile display name. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-displayname
func (cli *Client) SetDisplayName(displayName string) (err error) {
urlPath := cli.BuildURL("profile", cli.UserID, "displayname")
s := struct {
DisplayName string `json:"displayname"`
}{displayName}
err = cli.MakeRequest("PUT", urlPath, &s, nil)
return
}
// GetAvatarURL gets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-avatar-url
func (cli *Client) GetAvatarURL() (string, error) {
urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{}
err := cli.MakeRequest("GET", urlPath, nil, &s)
if err != nil {
return "", err
}
return s.AvatarURL, nil
}
// SetAvatarURL sets the user's avatar URL. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-profile-userid-avatar-url
func (cli *Client) SetAvatarURL(url string) error {
urlPath := cli.BuildURL("profile", cli.UserID, "avatar_url")
s := struct {
AvatarURL string `json:"avatar_url"`
}{url}
err := cli.MakeRequest("PUT", urlPath, &s, nil)
if err != nil {
return err
}
return nil
}
// GetStatus returns the status of the user from the specified MXID. See https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-presence-userid-status
func (cli *Client) GetStatus(mxid string) (resp *RespUserStatus, err error) {
urlPath := cli.BuildURL("presence", mxid, "status")
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// GetOwnStatus returns the user's status. See https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-presence-userid-status
func (cli *Client) GetOwnStatus() (resp *RespUserStatus, err error) {
return cli.GetStatus(cli.UserID)
}
// SetStatus sets the user's status. See https://matrix.org/docs/spec/client_server/r0.6.0#put-matrix-client-r0-presence-userid-status
func (cli *Client) SetStatus(presence, status string) (err error) {
urlPath := cli.BuildURL("presence", cli.UserID, "status")
s := struct {
Presence string `json:"presence"`
StatusMsg string `json:"status_msg"`
}{presence, status}
err = cli.MakeRequest("PUT", urlPath, &s, nil)
return
}
// SendMessageEvent sends a message event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
func (cli *Client) SendMessageEvent(roomID string, eventType string, contentJSON interface{}) (resp *RespSendEvent, err error) {
txnID := txnID()
urlPath := cli.BuildURL("rooms", roomID, "send", eventType, txnID)
err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
return
}
// SendStateEvent sends a state event into a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-state-eventtype-statekey
// contentJSON should be a pointer to something that can be encoded as JSON using json.Marshal.
func (cli *Client) SendStateEvent(roomID, eventType, stateKey string, contentJSON interface{}) (resp *RespSendEvent, err error) {
urlPath := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
err = cli.MakeRequest("PUT", urlPath, contentJSON, &resp)
return
}
// SendText sends an m.room.message event into the given room with a msgtype of m.text
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-text
func (cli *Client) SendText(roomID, text string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{MsgType: "m.text", Body: text})
}
// SendFormattedText sends an m.room.message event into the given room with a msgtype of m.text, supports a subset of HTML for formatting.
// See https://matrix.org/docs/spec/client_server/r0.6.0#m-text
func (cli *Client) SendFormattedText(roomID, text, formattedText string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{MsgType: "m.text", Body: text, FormattedBody: formattedText, Format: "org.matrix.custom.html"})
}
// SendImage sends an m.room.message event into the given room with a msgtype of m.image
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
func (cli *Client) SendImage(roomID, body, url string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
ImageMessage{
MsgType: "m.image",
Body: body,
URL: url,
})
}
// SendVideo sends an m.room.message event into the given room with a msgtype of m.video
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
func (cli *Client) SendVideo(roomID, body, url string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
VideoMessage{
MsgType: "m.video",
Body: body,
URL: url,
})
}
// SendNotice sends an m.room.message event into the given room with a msgtype of m.notice
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#m-notice
func (cli *Client) SendNotice(roomID, text string) (*RespSendEvent, error) {
return cli.SendMessageEvent(roomID, "m.room.message",
TextMessage{MsgType: "m.notice", Body: text})
}
// RedactEvent redacts the given event. See http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
func (cli *Client) RedactEvent(roomID, eventID string, req *ReqRedact) (resp *RespSendEvent, err error) {
txnID := txnID()
urlPath := cli.BuildURL("rooms", roomID, "redact", eventID, txnID)
err = cli.MakeRequest("PUT", urlPath, req, &resp)
return
}
// MarkRead marks eventID in roomID as read, signifying the event, and all before it have been read. See https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-r0-rooms-roomid-receipt-receipttype-eventid
func (cli *Client) MarkRead(roomID, eventID string) error {
urlPath := cli.BuildURL("rooms", roomID, "receipt", "m.read", eventID)
return cli.MakeRequest("POST", urlPath, nil, nil)
}
// CreateRoom creates a new Matrix room. See https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
// resp, err := cli.CreateRoom(&gomatrix.ReqCreateRoom{
// Preset: "public_chat",
// })
// fmt.Println("Room:", resp.RoomID)
func (cli *Client) CreateRoom(req *ReqCreateRoom) (resp *RespCreateRoom, err error) {
urlPath := cli.BuildURL("createRoom")
err = cli.MakeRequest("POST", urlPath, req, &resp)
return
}
// LeaveRoom leaves the given room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
func (cli *Client) LeaveRoom(roomID string) (resp *RespLeaveRoom, err error) {
u := cli.BuildURL("rooms", roomID, "leave")
err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// ForgetRoom forgets a room entirely. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
func (cli *Client) ForgetRoom(roomID string) (resp *RespForgetRoom, err error) {
u := cli.BuildURL("rooms", roomID, "forget")
err = cli.MakeRequest("POST", u, struct{}{}, &resp)
return
}
// InviteUser invites a user to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
func (cli *Client) InviteUser(roomID string, req *ReqInviteUser) (resp *RespInviteUser, err error) {
u := cli.BuildURL("rooms", roomID, "invite")
err = cli.MakeRequest("POST", u, req, &resp)
return
}
// InviteUserByThirdParty invites a third-party identifier to a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#invite-by-third-party-id-endpoint
func (cli *Client) InviteUserByThirdParty(roomID string, req *ReqInvite3PID) (resp *RespInviteUser, err error) {
u := cli.BuildURL("rooms", roomID, "invite")
err = cli.MakeRequest("POST", u, req, &resp)
return
}
// KickUser kicks a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
func (cli *Client) KickUser(roomID string, req *ReqKickUser) (resp *RespKickUser, err error) {
u := cli.BuildURL("rooms", roomID, "kick")
err = cli.MakeRequest("POST", u, req, &resp)
return
}
// BanUser bans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
func (cli *Client) BanUser(roomID string, req *ReqBanUser) (resp *RespBanUser, err error) {
u := cli.BuildURL("rooms", roomID, "ban")
err = cli.MakeRequest("POST", u, req, &resp)
return
}
// UnbanUser unbans a user from a room. See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
func (cli *Client) UnbanUser(roomID string, req *ReqUnbanUser) (resp *RespUnbanUser, err error) {
u := cli.BuildURL("rooms", roomID, "unban")
err = cli.MakeRequest("POST", u, req, &resp)
return
}
// UserTyping sets the typing status of the user. See https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
func (cli *Client) UserTyping(roomID string, typing bool, timeout int64) (resp *RespTyping, err error) {
req := ReqTyping{Typing: typing, Timeout: timeout}
u := cli.BuildURL("rooms", roomID, "typing", cli.UserID)
err = cli.MakeRequest("PUT", u, req, &resp)
return
}
// StateEvent gets a single state event in a room. It will attempt to JSON unmarshal into the given "outContent" struct with
// the HTTP response body, or return an error.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-state-eventtype-statekey
func (cli *Client) StateEvent(roomID, eventType, stateKey string, outContent interface{}) (err error) {
u := cli.BuildURL("rooms", roomID, "state", eventType, stateKey)
err = cli.MakeRequest("GET", u, nil, outContent)
return
}
// UploadLink uploads an HTTP URL and then returns an MXC URI.
func (cli *Client) UploadLink(link string) (*RespMediaUpload, error) {
res, err := cli.Client.Get(link)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
return cli.UploadToContentRepo(res.Body, res.Header.Get("Content-Type"), res.ContentLength)
}
// UploadToContentRepo uploads the given bytes to the content repository and returns an MXC URI.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
func (cli *Client) UploadToContentRepo(content io.Reader, contentType string, contentLength int64) (*RespMediaUpload, error) {
req, err := http.NewRequest("POST", cli.BuildBaseURL("_matrix/media/r0/upload"), content)
if err != nil {
return nil, err
}
req.Header.Set("Content-Type", contentType)
req.Header.Set("Authorization", "Bearer "+cli.AccessToken)
req.ContentLength = contentLength
res, err := cli.Client.Do(req)
if res != nil {
defer res.Body.Close()
}
if err != nil {
return nil, err
}
if res.StatusCode != 200 {
contents, err := ioutil.ReadAll(res.Body)
if err != nil {
return nil, HTTPError{
Message: "Upload request failed - Failed to read response body: " + err.Error(),
Code: res.StatusCode,
}
}
return nil, HTTPError{
Contents: contents,
Message: "Upload request failed: " + string(contents),
Code: res.StatusCode,
}
}
var m RespMediaUpload
if err := json.NewDecoder(res.Body).Decode(&m); err != nil {
return nil, err
}
return &m, nil
}
// JoinedMembers returns a map of joined room members. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
//
// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
// This API is primarily designed for application services which may want to efficiently look up joined members in a room.
func (cli *Client) JoinedMembers(roomID string) (resp *RespJoinedMembers, err error) {
u := cli.BuildURL("rooms", roomID, "joined_members")
err = cli.MakeRequest("GET", u, nil, &resp)
return
}
// JoinedRooms returns a list of rooms which the client is joined to. See TODO-SPEC. https://github.com/matrix-org/synapse/pull/1680
//
// In general, usage of this API is discouraged in favour of /sync, as calling this API can race with incoming membership changes.
// This API is primarily designed for application services which may want to efficiently look up joined rooms.
func (cli *Client) JoinedRooms() (resp *RespJoinedRooms, err error) {
u := cli.BuildURL("joined_rooms")
err = cli.MakeRequest("GET", u, nil, &resp)
return
}
// Messages returns a list of message and state events for a room. It uses
// pagination query parameters to paginate history in the room.
// See https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
func (cli *Client) Messages(roomID, from, to string, dir rune, limit int) (resp *RespMessages, err error) {
query := map[string]string{
"from": from,
"dir": string(dir),
}
if to != "" {
query["to"] = to
}
if limit != 0 {
query["limit"] = strconv.Itoa(limit)
}
urlPath := cli.BuildURLWithQuery([]string{"rooms", roomID, "messages"}, query)
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
// TurnServer returns turn server details and credentials for the client to use when initiating calls.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-voip-turnserver
func (cli *Client) TurnServer() (resp *RespTurnServer, err error) {
urlPath := cli.BuildURL("voip", "turnServer")
err = cli.MakeRequest("GET", urlPath, nil, &resp)
return
}
func txnID() string {
return "go" + strconv.FormatInt(time.Now().UnixNano(), 10)
}
// NewClient creates a new Matrix Client ready for syncing
func NewClient(homeserverURL, userID, accessToken string) (*Client, error) {
hsURL, err := url.Parse(homeserverURL)
if err != nil {
return nil, err
}
// By default, use an in-memory store which will never save filter ids / next batch tokens to disk.
// The client will work with this storer: it just won't remember across restarts.
// In practice, a database backend should be used.
store := NewInMemoryStore()
cli := Client{
AccessToken: accessToken,
HomeserverURL: hsURL,
UserID: userID,
Prefix: "/_matrix/client/r0",
Syncer: NewDefaultSyncer(userID, store),
Store: store,
}
// By default, use the default HTTP client.
cli.Client = http.DefaultClient
return &cli, nil
}

157
vendor/github.com/matrix-org/gomatrix/events.go generated vendored
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@@ -1,157 +0,0 @@
package gomatrix
import (
"html"
"regexp"
)
// Event represents a single Matrix event.
type Event struct {
StateKey *string `json:"state_key,omitempty"` // The state key for the event. Only present on State Events.
Sender string `json:"sender"` // The user ID of the sender of the event
Type string `json:"type"` // The event type
Timestamp int64 `json:"origin_server_ts"` // The unix timestamp when this message was sent by the origin server
ID string `json:"event_id"` // The unique ID of this event
RoomID string `json:"room_id"` // The room the event was sent to. May be nil (e.g. for presence)
Redacts string `json:"redacts,omitempty"` // The event ID that was redacted if a m.room.redaction event
Unsigned map[string]interface{} `json:"unsigned"` // The unsigned portions of the event, such as age and prev_content
Content map[string]interface{} `json:"content"` // The JSON content of the event.
PrevContent map[string]interface{} `json:"prev_content,omitempty"` // The JSON prev_content of the event.
}
// Body returns the value of the "body" key in the event content if it is
// present and is a string.
func (event *Event) Body() (body string, ok bool) {
value, exists := event.Content["body"]
if !exists {
return
}
body, ok = value.(string)
return
}
// MessageType returns the value of the "msgtype" key in the event content if
// it is present and is a string.
func (event *Event) MessageType() (msgtype string, ok bool) {
value, exists := event.Content["msgtype"]
if !exists {
return
}
msgtype, ok = value.(string)
return
}
// TextMessage is the contents of a Matrix formated message event.
type TextMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
FormattedBody string `json:"formatted_body"`
Format string `json:"format"`
}
// ThumbnailInfo contains info about an thumbnail image - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
type ThumbnailInfo struct {
Height uint `json:"h,omitempty"`
Width uint `json:"w,omitempty"`
Mimetype string `json:"mimetype,omitempty"`
Size uint `json:"size,omitempty"`
}
// ImageInfo contains info about an image - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-image
type ImageInfo struct {
Height uint `json:"h,omitempty"`
Width uint `json:"w,omitempty"`
Mimetype string `json:"mimetype,omitempty"`
Size uint `json:"size,omitempty"`
ThumbnailInfo ThumbnailInfo `json:"thumbnail_info,omitempty"`
ThumbnailURL string `json:"thumbnail_url,omitempty"`
}
// VideoInfo contains info about a video - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
type VideoInfo struct {
Mimetype string `json:"mimetype,omitempty"`
ThumbnailInfo ThumbnailInfo `json:"thumbnail_info"`
ThumbnailURL string `json:"thumbnail_url,omitempty"`
Height uint `json:"h,omitempty"`
Width uint `json:"w,omitempty"`
Duration uint `json:"duration,omitempty"`
Size uint `json:"size,omitempty"`
}
// VideoMessage is an m.video - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-video
type VideoMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
URL string `json:"url"`
Info VideoInfo `json:"info"`
}
// ImageMessage is an m.image event
type ImageMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
URL string `json:"url"`
Info ImageInfo `json:"info"`
}
// An HTMLMessage is the contents of a Matrix HTML formated message event.
type HTMLMessage struct {
Body string `json:"body"`
MsgType string `json:"msgtype"`
Format string `json:"format"`
FormattedBody string `json:"formatted_body"`
}
// FileInfo contains info about an file - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-file
type FileInfo struct {
Mimetype string `json:"mimetype,omitempty"`
Size uint `json:"size,omitempty"` //filesize in bytes
}
// FileMessage is an m.file event - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-file
type FileMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
URL string `json:"url"`
Filename string `json:"filename"`
Info FileInfo `json:"info,omitempty"`
ThumbnailURL string `json:"thumbnail_url,omitempty"`
ThumbnailInfo ImageInfo `json:"thumbnail_info,omitempty"`
}
// LocationMessage is an m.location event - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-location
type LocationMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
GeoURI string `json:"geo_uri"`
ThumbnailURL string `json:"thumbnail_url,omitempty"`
ThumbnailInfo ImageInfo `json:"thumbnail_info,omitempty"`
}
// AudioInfo contains info about an file - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-audio
type AudioInfo struct {
Mimetype string `json:"mimetype,omitempty"`
Size uint `json:"size,omitempty"` //filesize in bytes
Duration uint `json:"duration,omitempty"` //audio duration in ms
}
// AudioMessage is an m.audio event - http://matrix.org/docs/spec/client_server/r0.2.0.html#m-audio
type AudioMessage struct {
MsgType string `json:"msgtype"`
Body string `json:"body"`
URL string `json:"url"`
Info AudioInfo `json:"info,omitempty"`
}
var htmlRegex = regexp.MustCompile("<[^<]+?>")
// GetHTMLMessage returns an HTMLMessage with the body set to a stripped version of the provided HTML, in addition
// to the provided HTML.
func GetHTMLMessage(msgtype, htmlText string) HTMLMessage {
return HTMLMessage{
Body: html.UnescapeString(htmlRegex.ReplaceAllLiteralString(htmlText, "")),
MsgType: msgtype,
Format: "org.matrix.custom.html",
FormattedBody: htmlText,
}
}

90
vendor/github.com/matrix-org/gomatrix/filter.go generated vendored
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@@ -1,90 +0,0 @@
// Copyright 2017 Jan Christian Grünhage
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gomatrix
import "errors"
//Filter is used by clients to specify how the server should filter responses to e.g. sync requests
//Specified by: https://matrix.org/docs/spec/client_server/r0.2.0.html#filtering
type Filter struct {
AccountData FilterPart `json:"account_data,omitempty"`
EventFields []string `json:"event_fields,omitempty"`
EventFormat string `json:"event_format,omitempty"`
Presence FilterPart `json:"presence,omitempty"`
Room RoomFilter `json:"room,omitempty"`
}
// RoomFilter is used to define filtering rules for room events
type RoomFilter struct {
AccountData FilterPart `json:"account_data,omitempty"`
Ephemeral FilterPart `json:"ephemeral,omitempty"`
IncludeLeave bool `json:"include_leave,omitempty"`
NotRooms []string `json:"not_rooms,omitempty"`
Rooms []string `json:"rooms,omitempty"`
State FilterPart `json:"state,omitempty"`
Timeline FilterPart `json:"timeline,omitempty"`
}
// FilterPart is used to define filtering rules for specific categories of events
type FilterPart struct {
NotRooms []string `json:"not_rooms,omitempty"`
Rooms []string `json:"rooms,omitempty"`
Limit int `json:"limit,omitempty"`
NotSenders []string `json:"not_senders,omitempty"`
NotTypes []string `json:"not_types,omitempty"`
Senders []string `json:"senders,omitempty"`
Types []string `json:"types,omitempty"`
ContainsURL *bool `json:"contains_url,omitempty"`
}
// Validate checks if the filter contains valid property values
func (filter *Filter) Validate() error {
if filter.EventFormat != "client" && filter.EventFormat != "federation" {
return errors.New("Bad event_format value. Must be one of [\"client\", \"federation\"]")
}
return nil
}
// DefaultFilter returns the default filter used by the Matrix server if no filter is provided in the request
func DefaultFilter() Filter {
return Filter{
AccountData: DefaultFilterPart(),
EventFields: nil,
EventFormat: "client",
Presence: DefaultFilterPart(),
Room: RoomFilter{
AccountData: DefaultFilterPart(),
Ephemeral: DefaultFilterPart(),
IncludeLeave: false,
NotRooms: nil,
Rooms: nil,
State: DefaultFilterPart(),
Timeline: DefaultFilterPart(),
},
}
}
// DefaultFilterPart returns the default filter part used by the Matrix server if no filter is provided in the request
func DefaultFilterPart() FilterPart {
return FilterPart{
NotRooms: nil,
Rooms: nil,
Limit: 20,
NotSenders: nil,
NotTypes: nil,
Senders: nil,
Types: nil,
}
}

69
vendor/github.com/matrix-org/gomatrix/identifier.go generated vendored
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@@ -1,69 +0,0 @@
package gomatrix
// Identifier is the interface for https://matrix.org/docs/spec/client_server/r0.6.0#identifier-types
type Identifier interface {
// Returns the identifier type
// https://matrix.org/docs/spec/client_server/r0.6.0#identifier-types
Type() string
}
// UserIdentifier is the Identifier for https://matrix.org/docs/spec/client_server/r0.6.0#matrix-user-id
type UserIdentifier struct {
IDType string `json:"type"` // Set by NewUserIdentifer
User string `json:"user"`
}
// Type implements the Identifier interface
func (i UserIdentifier) Type() string {
return "m.id.user"
}
// NewUserIdentifier creates a new UserIdentifier with IDType set to "m.id.user"
func NewUserIdentifier(user string) UserIdentifier {
return UserIdentifier{
IDType: "m.id.user",
User: user,
}
}
// ThirdpartyIdentifier is the Identifier for https://matrix.org/docs/spec/client_server/r0.6.0#third-party-id
type ThirdpartyIdentifier struct {
IDType string `json:"type"` // Set by NewThirdpartyIdentifier
Medium string `json:"medium"`
Address string `json:"address"`
}
// Type implements the Identifier interface
func (i ThirdpartyIdentifier) Type() string {
return "m.id.thirdparty"
}
// NewThirdpartyIdentifier creates a new UserIdentifier with IDType set to "m.id.user"
func NewThirdpartyIdentifier(medium, address string) ThirdpartyIdentifier {
return ThirdpartyIdentifier{
IDType: "m.id.thirdparty",
Medium: medium,
Address: address,
}
}
// PhoneIdentifier is the Identifier for https://matrix.org/docs/spec/client_server/r0.6.0#phone-number
type PhoneIdentifier struct {
IDType string `json:"type"` // Set by NewPhoneIdentifier
Country string `json:"country"`
Phone string `json:"phone"`
}
// Type implements the Identifier interface
func (i PhoneIdentifier) Type() string {
return "m.id.phone"
}
// NewPhoneIdentifier creates a new UserIdentifier with IDType set to "m.id.user"
func NewPhoneIdentifier(country, phone string) PhoneIdentifier {
return PhoneIdentifier{
IDType: "m.id.phone",
Country: country,
Phone: phone,
}
}

79
vendor/github.com/matrix-org/gomatrix/requests.go generated vendored
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@@ -1,79 +0,0 @@
package gomatrix
// ReqRegister is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
type ReqRegister struct {
Username string `json:"username,omitempty"`
BindEmail bool `json:"bind_email,omitempty"`
Password string `json:"password,omitempty"`
DeviceID string `json:"device_id,omitempty"`
InitialDeviceDisplayName string `json:"initial_device_display_name"`
Auth interface{} `json:"auth,omitempty"`
}
// ReqLogin is the JSON request for http://matrix.org/docs/spec/client_server/r0.6.0.html#post-matrix-client-r0-login
type ReqLogin struct {
Type string `json:"type"`
Identifier Identifier `json:"identifier,omitempty"`
Password string `json:"password,omitempty"`
Medium string `json:"medium,omitempty"`
User string `json:"user,omitempty"`
Address string `json:"address,omitempty"`
Token string `json:"token,omitempty"`
DeviceID string `json:"device_id,omitempty"`
InitialDeviceDisplayName string `json:"initial_device_display_name,omitempty"`
}
// ReqCreateRoom is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
type ReqCreateRoom struct {
Visibility string `json:"visibility,omitempty"`
RoomAliasName string `json:"room_alias_name,omitempty"`
Name string `json:"name,omitempty"`
Topic string `json:"topic,omitempty"`
Invite []string `json:"invite,omitempty"`
Invite3PID []ReqInvite3PID `json:"invite_3pid,omitempty"`
CreationContent map[string]interface{} `json:"creation_content,omitempty"`
InitialState []Event `json:"initial_state,omitempty"`
Preset string `json:"preset,omitempty"`
IsDirect bool `json:"is_direct,omitempty"`
}
// ReqRedact is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-redact-eventid-txnid
type ReqRedact struct {
Reason string `json:"reason,omitempty"`
}
// ReqInvite3PID is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#id57
// It is also a JSON object used in https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
type ReqInvite3PID struct {
IDServer string `json:"id_server"`
Medium string `json:"medium"`
Address string `json:"address"`
}
// ReqInviteUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
type ReqInviteUser struct {
UserID string `json:"user_id"`
}
// ReqKickUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
type ReqKickUser struct {
Reason string `json:"reason,omitempty"`
UserID string `json:"user_id"`
}
// ReqBanUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
type ReqBanUser struct {
Reason string `json:"reason,omitempty"`
UserID string `json:"user_id"`
}
// ReqUnbanUser is the JSON request for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
type ReqUnbanUser struct {
UserID string `json:"user_id"`
}
// ReqTyping is the JSON request for https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
type ReqTyping struct {
Typing bool `json:"typing"`
Timeout int64 `json:"timeout"`
}

210
vendor/github.com/matrix-org/gomatrix/responses.go generated vendored
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@@ -1,210 +0,0 @@
package gomatrix
// RespError is the standard JSON error response from Homeservers. It also implements the Golang "error" interface.
// See http://matrix.org/docs/spec/client_server/r0.2.0.html#api-standards
type RespError struct {
ErrCode string `json:"errcode"`
Err string `json:"error"`
}
// Error returns the errcode and error message.
func (e RespError) Error() string {
return e.ErrCode + ": " + e.Err
}
// RespCreateFilter is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-user-userid-filter
type RespCreateFilter struct {
FilterID string `json:"filter_id"`
}
// RespVersions is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-versions
type RespVersions struct {
Versions []string `json:"versions"`
}
// RespPublicRooms is the JSON response for http://matrix.org/speculator/spec/HEAD/client_server/unstable.html#get-matrix-client-unstable-publicrooms
type RespPublicRooms struct {
TotalRoomCountEstimate int `json:"total_room_count_estimate"`
PrevBatch string `json:"prev_batch"`
NextBatch string `json:"next_batch"`
Chunk []PublicRoom `json:"chunk"`
}
// RespJoinRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-join
type RespJoinRoom struct {
RoomID string `json:"room_id"`
}
// RespLeaveRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-leave
type RespLeaveRoom struct{}
// RespForgetRoom is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-forget
type RespForgetRoom struct{}
// RespInviteUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-invite
type RespInviteUser struct{}
// RespKickUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-kick
type RespKickUser struct{}
// RespBanUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-ban
type RespBanUser struct{}
// RespUnbanUser is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-rooms-roomid-unban
type RespUnbanUser struct{}
// RespTyping is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-typing-userid
type RespTyping struct{}
// RespJoinedRooms is the JSON response for TODO-SPEC https://github.com/matrix-org/synapse/pull/1680
type RespJoinedRooms struct {
JoinedRooms []string `json:"joined_rooms"`
}
// RespJoinedMembers is the JSON response for TODO-SPEC https://github.com/matrix-org/synapse/pull/1680
type RespJoinedMembers struct {
Joined map[string]struct {
DisplayName *string `json:"display_name"`
AvatarURL *string `json:"avatar_url"`
} `json:"joined"`
}
// RespMessages is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-rooms-roomid-messages
type RespMessages struct {
Start string `json:"start"`
Chunk []Event `json:"chunk"`
End string `json:"end"`
}
// RespSendEvent is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#put-matrix-client-r0-rooms-roomid-send-eventtype-txnid
type RespSendEvent struct {
EventID string `json:"event_id"`
}
// RespMediaUpload is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-media-r0-upload
type RespMediaUpload struct {
ContentURI string `json:"content_uri"`
}
// RespUserInteractive is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#user-interactive-authentication-api
type RespUserInteractive struct {
Flows []struct {
Stages []string `json:"stages"`
} `json:"flows"`
Params map[string]interface{} `json:"params"`
Session string `json:"session"`
Completed []string `json:"completed"`
ErrCode string `json:"errcode"`
Error string `json:"error"`
}
// HasSingleStageFlow returns true if there exists at least 1 Flow with a single stage of stageName.
func (r RespUserInteractive) HasSingleStageFlow(stageName string) bool {
for _, f := range r.Flows {
if len(f.Stages) == 1 && f.Stages[0] == stageName {
return true
}
}
return false
}
// RespUserDisplayName is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-profile-userid-displayname
type RespUserDisplayName struct {
DisplayName string `json:"displayname"`
}
// RespUserStatus is the JSON response for https://matrix.org/docs/spec/client_server/r0.6.0#get-matrix-client-r0-presence-userid-status
type RespUserStatus struct {
Presence string `json:"presence"`
StatusMsg string `json:"status_msg"`
LastActiveAgo int `json:"last_active_ago"`
CurrentlyActive bool `json:"currently_active"`
}
// RespRegister is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-register
type RespRegister struct {
AccessToken string `json:"access_token"`
DeviceID string `json:"device_id"`
HomeServer string `json:"home_server"`
RefreshToken string `json:"refresh_token"`
UserID string `json:"user_id"`
}
// RespLogin is the JSON response for http://matrix.org/docs/spec/client_server/r0.6.0.html#post-matrix-client-r0-login
type RespLogin struct {
AccessToken string `json:"access_token"`
DeviceID string `json:"device_id"`
HomeServer string `json:"home_server"`
UserID string `json:"user_id"`
WellKnown DiscoveryInformation `json:"well_known"`
}
// DiscoveryInformation is the JSON Response for https://matrix.org/docs/spec/client_server/r0.6.0#get-well-known-matrix-client and a part of the JSON Response for https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-r0-login
type DiscoveryInformation struct {
Homeserver struct {
BaseURL string `json:"base_url"`
} `json:"m.homeserver"`
IdentityServer struct {
BaseURL string `json:"base_url"`
} `json:"m.identitiy_server"`
}
// RespLogout is the JSON response for http://matrix.org/docs/spec/client_server/r0.6.0.html#post-matrix-client-r0-logout
type RespLogout struct{}
// RespLogoutAll is the JSON response for https://matrix.org/docs/spec/client_server/r0.6.0#post-matrix-client-r0-logout-all
type RespLogoutAll struct{}
// RespCreateRoom is the JSON response for https://matrix.org/docs/spec/client_server/r0.2.0.html#post-matrix-client-r0-createroom
type RespCreateRoom struct {
RoomID string `json:"room_id"`
}
// RespSync is the JSON response for http://matrix.org/docs/spec/client_server/r0.2.0.html#get-matrix-client-r0-sync
type RespSync struct {
NextBatch string `json:"next_batch"`
AccountData struct {
Events []Event `json:"events"`
} `json:"account_data"`
Presence struct {
Events []Event `json:"events"`
} `json:"presence"`
Rooms struct {
Leave map[string]struct {
State struct {
Events []Event `json:"events"`
} `json:"state"`
Timeline struct {
Events []Event `json:"events"`
Limited bool `json:"limited"`
PrevBatch string `json:"prev_batch"`
} `json:"timeline"`
} `json:"leave"`
Join map[string]struct {
State struct {
Events []Event `json:"events"`
} `json:"state"`
Timeline struct {
Events []Event `json:"events"`
Limited bool `json:"limited"`
PrevBatch string `json:"prev_batch"`
} `json:"timeline"`
Ephemeral struct {
Events []Event `json:"events"`
} `json:"ephemeral"`
} `json:"join"`
Invite map[string]struct {
State struct {
Events []Event
} `json:"invite_state"`
} `json:"invite"`
} `json:"rooms"`
}
// RespTurnServer is the JSON response from a Turn Server
type RespTurnServer struct {
Username string `json:"username"`
Password string `json:"password"`
TTL int `json:"ttl"`
URIs []string `json:"uris"`
}

63
vendor/github.com/matrix-org/gomatrix/room.go generated vendored
View File

@@ -1,63 +0,0 @@
package gomatrix
// Room represents a single Matrix room.
type Room struct {
ID string
State map[string]map[string]*Event
}
// PublicRoom represents the information about a public room obtainable from the room directory
type PublicRoom struct {
CanonicalAlias string `json:"canonical_alias"`
Name string `json:"name"`
WorldReadable bool `json:"world_readable"`
Topic string `json:"topic"`
NumJoinedMembers int `json:"num_joined_members"`
AvatarURL string `json:"avatar_url"`
RoomID string `json:"room_id"`
GuestCanJoin bool `json:"guest_can_join"`
Aliases []string `json:"aliases"`
}
// UpdateState updates the room's current state with the given Event. This will clobber events based
// on the type/state_key combination.
func (room Room) UpdateState(event *Event) {
_, exists := room.State[event.Type]
if !exists {
room.State[event.Type] = make(map[string]*Event)
}
room.State[event.Type][*event.StateKey] = event
}
// GetStateEvent returns the state event for the given type/state_key combo, or nil.
func (room Room) GetStateEvent(eventType string, stateKey string) *Event {
stateEventMap := room.State[eventType]
event := stateEventMap[stateKey]
return event
}
// GetMembershipState returns the membership state of the given user ID in this room. If there is
// no entry for this member, 'leave' is returned for consistency with left users.
func (room Room) GetMembershipState(userID string) string {
state := "leave"
event := room.GetStateEvent("m.room.member", userID)
if event != nil {
membershipState, found := event.Content["membership"]
if found {
mState, isString := membershipState.(string)
if isString {
state = mState
}
}
}
return state
}
// NewRoom creates a new Room with the given ID
func NewRoom(roomID string) *Room {
// Init the State map and return a pointer to the Room
return &Room{
ID: roomID,
State: make(map[string]map[string]*Event),
}
}

65
vendor/github.com/matrix-org/gomatrix/store.go generated vendored
View File

@@ -1,65 +0,0 @@
package gomatrix
// Storer is an interface which must be satisfied to store client data.
//
// You can either write a struct which persists this data to disk, or you can use the
// provided "InMemoryStore" which just keeps data around in-memory which is lost on
// restarts.
type Storer interface {
SaveFilterID(userID, filterID string)
LoadFilterID(userID string) string
SaveNextBatch(userID, nextBatchToken string)
LoadNextBatch(userID string) string
SaveRoom(room *Room)
LoadRoom(roomID string) *Room
}
// InMemoryStore implements the Storer interface.
//
// Everything is persisted in-memory as maps. It is not safe to load/save filter IDs
// or next batch tokens on any goroutine other than the syncing goroutine: the one
// which called Client.Sync().
type InMemoryStore struct {
Filters map[string]string
NextBatch map[string]string
Rooms map[string]*Room
}
// SaveFilterID to memory.
func (s *InMemoryStore) SaveFilterID(userID, filterID string) {
s.Filters[userID] = filterID
}
// LoadFilterID from memory.
func (s *InMemoryStore) LoadFilterID(userID string) string {
return s.Filters[userID]
}
// SaveNextBatch to memory.
func (s *InMemoryStore) SaveNextBatch(userID, nextBatchToken string) {
s.NextBatch[userID] = nextBatchToken
}
// LoadNextBatch from memory.
func (s *InMemoryStore) LoadNextBatch(userID string) string {
return s.NextBatch[userID]
}
// SaveRoom to memory.
func (s *InMemoryStore) SaveRoom(room *Room) {
s.Rooms[room.ID] = room
}
// LoadRoom from memory.
func (s *InMemoryStore) LoadRoom(roomID string) *Room {
return s.Rooms[roomID]
}
// NewInMemoryStore constructs a new InMemoryStore.
func NewInMemoryStore() *InMemoryStore {
return &InMemoryStore{
Filters: make(map[string]string),
NextBatch: make(map[string]string),
Rooms: make(map[string]*Room),
}
}

168
vendor/github.com/matrix-org/gomatrix/sync.go generated vendored
View File

@@ -1,168 +0,0 @@
package gomatrix
import (
"encoding/json"
"fmt"
"runtime/debug"
"time"
)
// Syncer represents an interface that must be satisfied in order to do /sync requests on a client.
type Syncer interface {
// Process the /sync response. The since parameter is the since= value that was used to produce the response.
// This is useful for detecting the very first sync (since=""). If an error is return, Syncing will be stopped
// permanently.
ProcessResponse(resp *RespSync, since string) error
// OnFailedSync returns either the time to wait before retrying or an error to stop syncing permanently.
OnFailedSync(res *RespSync, err error) (time.Duration, error)
// GetFilterJSON for the given user ID. NOT the filter ID.
GetFilterJSON(userID string) json.RawMessage
}
// DefaultSyncer is the default syncing implementation. You can either write your own syncer, or selectively
// replace parts of this default syncer (e.g. the ProcessResponse method). The default syncer uses the observer
// pattern to notify callers about incoming events. See DefaultSyncer.OnEventType for more information.
type DefaultSyncer struct {
UserID string
Store Storer
listeners map[string][]OnEventListener // event type to listeners array
}
// OnEventListener can be used with DefaultSyncer.OnEventType to be informed of incoming events.
type OnEventListener func(*Event)
// NewDefaultSyncer returns an instantiated DefaultSyncer
func NewDefaultSyncer(userID string, store Storer) *DefaultSyncer {
return &DefaultSyncer{
UserID: userID,
Store: store,
listeners: make(map[string][]OnEventListener),
}
}
// ProcessResponse processes the /sync response in a way suitable for bots. "Suitable for bots" means a stream of
// unrepeating events. Returns a fatal error if a listener panics.
func (s *DefaultSyncer) ProcessResponse(res *RespSync, since string) (err error) {
if !s.shouldProcessResponse(res, since) {
return
}
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("ProcessResponse panicked! userID=%s since=%s panic=%s\n%s", s.UserID, since, r, debug.Stack())
}
}()
for roomID, roomData := range res.Rooms.Join {
room := s.getOrCreateRoom(roomID)
for _, event := range roomData.State.Events {
event.RoomID = roomID
room.UpdateState(&event)
s.notifyListeners(&event)
}
for _, event := range roomData.Timeline.Events {
event.RoomID = roomID
s.notifyListeners(&event)
}
for _, event := range roomData.Ephemeral.Events {
event.RoomID = roomID
s.notifyListeners(&event)
}
}
for roomID, roomData := range res.Rooms.Invite {
room := s.getOrCreateRoom(roomID)
for _, event := range roomData.State.Events {
event.RoomID = roomID
room.UpdateState(&event)
s.notifyListeners(&event)
}
}
for roomID, roomData := range res.Rooms.Leave {
room := s.getOrCreateRoom(roomID)
for _, event := range roomData.Timeline.Events {
if event.StateKey != nil {
event.RoomID = roomID
room.UpdateState(&event)
s.notifyListeners(&event)
}
}
}
return
}
// OnEventType allows callers to be notified when there are new events for the given event type.
// There are no duplicate checks.
func (s *DefaultSyncer) OnEventType(eventType string, callback OnEventListener) {
_, exists := s.listeners[eventType]
if !exists {
s.listeners[eventType] = []OnEventListener{}
}
s.listeners[eventType] = append(s.listeners[eventType], callback)
}
// shouldProcessResponse returns true if the response should be processed. May modify the response to remove
// stuff that shouldn't be processed.
func (s *DefaultSyncer) shouldProcessResponse(resp *RespSync, since string) bool {
if since == "" {
return false
}
// This is a horrible hack because /sync will return the most recent messages for a room
// as soon as you /join it. We do NOT want to process those events in that particular room
// because they may have already been processed (if you toggle the bot in/out of the room).
//
// Work around this by inspecting each room's timeline and seeing if an m.room.member event for us
// exists and is "join" and then discard processing that room entirely if so.
// TODO: We probably want to process messages from after the last join event in the timeline.
for roomID, roomData := range resp.Rooms.Join {
for i := len(roomData.Timeline.Events) - 1; i >= 0; i-- {
e := roomData.Timeline.Events[i]
if e.Type == "m.room.member" && e.StateKey != nil && *e.StateKey == s.UserID {
m := e.Content["membership"]
mship, ok := m.(string)
if !ok {
continue
}
if mship == "join" {
_, ok := resp.Rooms.Join[roomID]
if !ok {
continue
}
delete(resp.Rooms.Join, roomID) // don't re-process messages
delete(resp.Rooms.Invite, roomID) // don't re-process invites
break
}
}
}
}
return true
}
// getOrCreateRoom must only be called by the Sync() goroutine which calls ProcessResponse()
func (s *DefaultSyncer) getOrCreateRoom(roomID string) *Room {
room := s.Store.LoadRoom(roomID)
if room == nil { // create a new Room
room = NewRoom(roomID)
s.Store.SaveRoom(room)
}
return room
}
func (s *DefaultSyncer) notifyListeners(event *Event) {
listeners, exists := s.listeners[event.Type]
if !exists {
return
}
for _, fn := range listeners {
fn(event)
}
}
// OnFailedSync always returns a 10 second wait period between failed /syncs, never a fatal error.
func (s *DefaultSyncer) OnFailedSync(res *RespSync, err error) (time.Duration, error) {
return 10 * time.Second, nil
}
// GetFilterJSON returns a filter with a timeline limit of 50.
func (s *DefaultSyncer) GetFilterJSON(userID string) json.RawMessage {
return json.RawMessage(`{"room":{"timeline":{"limit":50}}}`)
}

26
vendor/github.com/matrix-org/gomatrix/tags.go generated vendored
View File

@@ -1,26 +0,0 @@
// Copyright 2019 Sumukha PK
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gomatrix
// TagContent contains the data for an m.tag message type
// https://matrix.org/docs/spec/client_server/r0.4.0.html#m-tag
type TagContent struct {
Tags map[string]TagProperties `json:"tags"`
}
// TagProperties contains the properties of a Tag
type TagProperties struct {
Order float32 `json:"order,omitempty"` // Empty values must be neglected
}

130
vendor/github.com/matrix-org/gomatrix/userids.go generated vendored
View File

@@ -1,130 +0,0 @@
package gomatrix
import (
"bytes"
"encoding/hex"
"fmt"
"strings"
)
const lowerhex = "0123456789abcdef"
// encode the given byte using quoted-printable encoding (e.g "=2f")
// and writes it to the buffer
// See https://golang.org/src/mime/quotedprintable/writer.go
func encode(buf *bytes.Buffer, b byte) {
buf.WriteByte('=')
buf.WriteByte(lowerhex[b>>4])
buf.WriteByte(lowerhex[b&0x0f])
}
// escape the given alpha character and writes it to the buffer
func escape(buf *bytes.Buffer, b byte) {
buf.WriteByte('_')
if b == '_' {
buf.WriteByte('_') // another _
} else {
buf.WriteByte(b + 0x20) // ASCII shift A-Z to a-z
}
}
func shouldEncode(b byte) bool {
return b != '-' && b != '.' && b != '_' && !(b >= '0' && b <= '9') && !(b >= 'a' && b <= 'z') && !(b >= 'A' && b <= 'Z')
}
func shouldEscape(b byte) bool {
return (b >= 'A' && b <= 'Z') || b == '_'
}
func isValidByte(b byte) bool {
return isValidEscapedChar(b) || (b >= '0' && b <= '9') || b == '.' || b == '=' || b == '-'
}
func isValidEscapedChar(b byte) bool {
return b == '_' || (b >= 'a' && b <= 'z')
}
// EncodeUserLocalpart encodes the given string into Matrix-compliant user ID localpart form.
// See http://matrix.org/docs/spec/intro.html#mapping-from-other-character-sets
//
// This returns a string with only the characters "a-z0-9._=-". The uppercase range A-Z
// are encoded using leading underscores ("_"). Characters outside the aforementioned ranges
// (including literal underscores ("_") and equals ("=")) are encoded as UTF8 code points (NOT NCRs)
// and converted to lower-case hex with a leading "=". For example:
// Alph@Bet_50up => _alph=40_bet=5f50up
func EncodeUserLocalpart(str string) string {
strBytes := []byte(str)
var outputBuffer bytes.Buffer
for _, b := range strBytes {
if shouldEncode(b) {
encode(&outputBuffer, b)
} else if shouldEscape(b) {
escape(&outputBuffer, b)
} else {
outputBuffer.WriteByte(b)
}
}
return outputBuffer.String()
}
// DecodeUserLocalpart decodes the given string back into the original input string.
// Returns an error if the given string is not a valid user ID localpart encoding.
// See http://matrix.org/docs/spec/intro.html#mapping-from-other-character-sets
//
// This decodes quoted-printable bytes back into UTF8, and unescapes casing. For
// example:
// _alph=40_bet=5f50up => Alph@Bet_50up
// Returns an error if the input string contains characters outside the
// range "a-z0-9._=-", has an invalid quote-printable byte (e.g. not hex), or has
// an invalid _ escaped byte (e.g. "_5").
func DecodeUserLocalpart(str string) (string, error) {
strBytes := []byte(str)
var outputBuffer bytes.Buffer
for i := 0; i < len(strBytes); i++ {
b := strBytes[i]
if !isValidByte(b) {
return "", fmt.Errorf("Byte pos %d: Invalid byte", i)
}
if b == '_' { // next byte is a-z and should be upper-case or is another _ and should be a literal _
if i+1 >= len(strBytes) {
return "", fmt.Errorf("Byte pos %d: expected _[a-z_] encoding but ran out of string", i)
}
if !isValidEscapedChar(strBytes[i+1]) { // invalid escaping
return "", fmt.Errorf("Byte pos %d: expected _[a-z_] encoding", i)
}
if strBytes[i+1] == '_' {
outputBuffer.WriteByte('_')
} else {
outputBuffer.WriteByte(strBytes[i+1] - 0x20) // ASCII shift a-z to A-Z
}
i++ // skip next byte since we just handled it
} else if b == '=' { // next 2 bytes are hex and should be buffered ready to be read as utf8
if i+2 >= len(strBytes) {
return "", fmt.Errorf("Byte pos: %d: expected quote-printable encoding but ran out of string", i)
}
dst := make([]byte, 1)
_, err := hex.Decode(dst, strBytes[i+1:i+3])
if err != nil {
return "", err
}
outputBuffer.WriteByte(dst[0])
i += 2 // skip next 2 bytes since we just handled it
} else { // pass through
outputBuffer.WriteByte(b)
}
}
return outputBuffer.String(), nil
}
// ExtractUserLocalpart extracts the localpart portion of a user ID.
// See http://matrix.org/docs/spec/intro.html#user-identifiers
func ExtractUserLocalpart(userID string) (string, error) {
if len(userID) == 0 || userID[0] != '@' {
return "", fmt.Errorf("%s is not a valid user id", userID)
}
return strings.TrimPrefix(
strings.SplitN(userID, ":", 2)[0], // @foo:bar:8448 => [ "@foo", "bar:8448" ]
"@", // remove "@" prefix
), nil
}

38
vendor/github.com/mattn/go-colorable/colorable_appengine.go generated vendored
View File

@@ -1,38 +0,0 @@
//go:build appengine
// +build appengine
package colorable
import (
"io"
"os"
_ "github.com/mattn/go-isatty"
)
// NewColorable returns new instance of Writer which handles escape sequence.
func NewColorable(file *os.File) io.Writer {
if file == nil {
panic("nil passed instead of *os.File to NewColorable()")
}
return file
}
// NewColorableStdout returns new instance of Writer which handles escape sequence for stdout.
func NewColorableStdout() io.Writer {
return os.Stdout
}
// NewColorableStderr returns new instance of Writer which handles escape sequence for stderr.
func NewColorableStderr() io.Writer {
return os.Stderr
}
// EnableColorsStdout enable colors if possible.
func EnableColorsStdout(enabled *bool) func() {
if enabled != nil {
*enabled = true
}
return func() {}
}

4
vendor/github.com/mattn/go-colorable/colorable_others.go generated vendored
View File

@@ -1,5 +1,5 @@
//go:build !windows && !appengine
// +build !windows,!appengine
//go:build !windows || appengine
// +build !windows appengine
package colorable

22
vendor/github.com/mattn/go-colorable/colorable_windows.go generated vendored
View File

@@ -11,7 +11,7 @@ import (
"strconv"
"strings"
"sync"
"syscall"
syscall "golang.org/x/sys/windows"
"unsafe"
"github.com/mattn/go-isatty"
@@ -73,7 +73,7 @@ type consoleCursorInfo struct {
}
var (
kernel32 = syscall.NewLazyDLL("kernel32.dll")
kernel32 = syscall.NewLazySystemDLL("kernel32.dll")
procGetConsoleScreenBufferInfo = kernel32.NewProc("GetConsoleScreenBufferInfo")
procSetConsoleTextAttribute = kernel32.NewProc("SetConsoleTextAttribute")
procSetConsoleCursorPosition = kernel32.NewProc("SetConsoleCursorPosition")
@@ -87,8 +87,8 @@ var (
procCreateConsoleScreenBuffer = kernel32.NewProc("CreateConsoleScreenBuffer")
)
// Writer provides colorable Writer to the console
type Writer struct {
// writer provides colorable Writer to the console
type writer struct {
out io.Writer
handle syscall.Handle
althandle syscall.Handle
@@ -98,7 +98,7 @@ type Writer struct {
mutex sync.Mutex
}
// NewColorable returns new instance of Writer which handles escape sequence from File.
// NewColorable returns new instance of writer which handles escape sequence from File.
func NewColorable(file *os.File) io.Writer {
if file == nil {
panic("nil passed instead of *os.File to NewColorable()")
@@ -112,17 +112,17 @@ func NewColorable(file *os.File) io.Writer {
var csbi consoleScreenBufferInfo
handle := syscall.Handle(file.Fd())
procGetConsoleScreenBufferInfo.Call(uintptr(handle), uintptr(unsafe.Pointer(&csbi)))
return &Writer{out: file, handle: handle, oldattr: csbi.attributes, oldpos: coord{0, 0}}
return &writer{out: file, handle: handle, oldattr: csbi.attributes, oldpos: coord{0, 0}}
}
return file
}
// NewColorableStdout returns new instance of Writer which handles escape sequence for stdout.
// NewColorableStdout returns new instance of writer which handles escape sequence for stdout.
func NewColorableStdout() io.Writer {
return NewColorable(os.Stdout)
}
// NewColorableStderr returns new instance of Writer which handles escape sequence for stderr.
// NewColorableStderr returns new instance of writer which handles escape sequence for stderr.
func NewColorableStderr() io.Writer {
return NewColorable(os.Stderr)
}
@@ -434,7 +434,7 @@ func atoiWithDefault(s string, def int) (int, error) {
}
// Write writes data on console
func (w *Writer) Write(data []byte) (n int, err error) {
func (w *writer) Write(data []byte) (n int, err error) {
w.mutex.Lock()
defer w.mutex.Unlock()
var csbi consoleScreenBufferInfo
@@ -560,7 +560,7 @@ loop:
}
procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'E':
n, err = strconv.Atoi(buf.String())
n, err = atoiWithDefault(buf.String(), 1)
if err != nil {
continue
}
@@ -569,7 +569,7 @@ loop:
csbi.cursorPosition.y += short(n)
procSetConsoleCursorPosition.Call(uintptr(handle), *(*uintptr)(unsafe.Pointer(&csbi.cursorPosition)))
case 'F':
n, err = strconv.Atoi(buf.String())
n, err = atoiWithDefault(buf.String(), 1)
if err != nil {
continue
}

3
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//go:build (darwin || freebsd || openbsd || netbsd || dragonfly || hurd) && !appengine
//go:build (darwin || freebsd || openbsd || netbsd || dragonfly || hurd) && !appengine && !tinygo
// +build darwin freebsd openbsd netbsd dragonfly hurd
// +build !appengine
// +build !tinygo
package isatty

5
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@@ -1,5 +1,6 @@
//go:build appengine || js || nacl || wasm
// +build appengine js nacl wasm
//go:build (appengine || js || nacl || tinygo || wasm) && !windows
// +build appengine js nacl tinygo wasm
// +build !windows
package isatty

3
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@@ -1,6 +1,7 @@
//go:build (linux || aix || zos) && !appengine
//go:build (linux || aix || zos) && !appengine && !tinygo
// +build linux aix zos
// +build !appengine
// +build !tinygo
package isatty

20
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@@ -0,0 +1,20 @@
The MIT License (MIT)
Copyright (c) 2016 Josh Baker
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

492
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@@ -0,0 +1,492 @@
<p align="center">
<picture>
<source media="(prefers-color-scheme: dark)" srcset="/.github/images/logo-dark.png">
<source media="(prefers-color-scheme: light)" srcset="/.github/images/logo-light.png">
<img src="/.github/images/logo-light.png" width="240" alt="GJSON" >
</picture>
<br>
<a href="https://godoc.org/github.com/tidwall/gjson"><img src="https://img.shields.io/badge/api-reference-blue.svg?style=flat-square" alt="GoDoc"></a>
<a href="https://tidwall.com/gjson-play"><img src="https://img.shields.io/badge/%F0%9F%8F%90-playground-9900cc.svg?style=flat-square" alt="GJSON Playground"></a>
<a href="SYNTAX.md"><img src="https://img.shields.io/badge/{}-syntax-33aa33.svg?style=flat-square" alt="GJSON Syntax"></a>
</p>
<p align="center">get json values quickly</a></p>
GJSON is a Go package that provides a [fast](#performance) and [simple](#get-a-value) way to get values from a json document.
It has features such as [one line retrieval](#get-a-value), [dot notation paths](#path-syntax), [iteration](#iterate-through-an-object-or-array), and [parsing json lines](#json-lines).
Also check out [SJSON](https://github.com/tidwall/sjson) for modifying json, and the [JJ](https://github.com/tidwall/jj) command line tool.
This README is a quick overview of how to use GJSON, for more information check out [GJSON Syntax](SYNTAX.md).
GJSON is also available for [Python](https://github.com/volans-/gjson-py) and [Rust](https://github.com/tidwall/gjson.rs)
Getting Started
===============
## Installing
To start using GJSON, install Go and run `go get`:
```sh
$ go get -u github.com/tidwall/gjson
```
This will retrieve the library.
## Get a value
Get searches json for the specified path. A path is in dot syntax, such as "name.last" or "age". When the value is found it's returned immediately.
```go
package main
import "github.com/tidwall/gjson"
const json = `{"name":{"first":"Janet","last":"Prichard"},"age":47}`
func main() {
value := gjson.Get(json, "name.last")
println(value.String())
}
```
This will print:
```
Prichard
```
*There's also the [GetMany](#get-multiple-values-at-once) function to get multiple values at once, and [GetBytes](#working-with-bytes) for working with JSON byte slices.*
## Path Syntax
Below is a quick overview of the path syntax, for more complete information please
check out [GJSON Syntax](SYNTAX.md).
A path is a series of keys separated by a dot.
A key may contain special wildcard characters '\*' and '?'.
To access an array value use the index as the key.
To get the number of elements in an array or to access a child path, use the '#' character.
The dot and wildcard characters can be escaped with '\\'.
```json
{
"name": {"first": "Tom", "last": "Anderson"},
"age":37,
"children": ["Sara","Alex","Jack"],
"fav.movie": "Deer Hunter",
"friends": [
{"first": "Dale", "last": "Murphy", "age": 44, "nets": ["ig", "fb", "tw"]},
{"first": "Roger", "last": "Craig", "age": 68, "nets": ["fb", "tw"]},
{"first": "Jane", "last": "Murphy", "age": 47, "nets": ["ig", "tw"]}
]
}
```
```
"name.last" >> "Anderson"
"age" >> 37
"children" >> ["Sara","Alex","Jack"]
"children.#" >> 3
"children.1" >> "Alex"
"child*.2" >> "Jack"
"c?ildren.0" >> "Sara"
"fav\.movie" >> "Deer Hunter"
"friends.#.first" >> ["Dale","Roger","Jane"]
"friends.1.last" >> "Craig"
```
You can also query an array for the first match by using `#(...)`, or find all
matches with `#(...)#`. Queries support the `==`, `!=`, `<`, `<=`, `>`, `>=`
comparison operators and the simple pattern matching `%` (like) and `!%`
(not like) operators.
```
friends.#(last=="Murphy").first >> "Dale"
friends.#(last=="Murphy")#.first >> ["Dale","Jane"]
friends.#(age>45)#.last >> ["Craig","Murphy"]
friends.#(first%"D*").last >> "Murphy"
friends.#(first!%"D*").last >> "Craig"
friends.#(nets.#(=="fb"))#.first >> ["Dale","Roger"]
```
*Please note that prior to v1.3.0, queries used the `#[...]` brackets. This was
changed in v1.3.0 as to avoid confusion with the new
[multipath](SYNTAX.md#multipaths) syntax. For backwards compatibility,
`#[...]` will continue to work until the next major release.*
## Result Type
GJSON supports the json types `string`, `number`, `bool`, and `null`.
Arrays and Objects are returned as their raw json types.
The `Result` type holds one of these:
```
bool, for JSON booleans
float64, for JSON numbers
string, for JSON string literals
nil, for JSON null
```
To directly access the value:
```go
result.Type // can be String, Number, True, False, Null, or JSON
result.Str // holds the string
result.Num // holds the float64 number
result.Raw // holds the raw json
result.Index // index of raw value in original json, zero means index unknown
result.Indexes // indexes of all the elements that match on a path containing the '#' query character.
```
There are a variety of handy functions that work on a result:
```go
result.Exists() bool
result.Value() interface{}
result.Int() int64
result.Uint() uint64
result.Float() float64
result.String() string
result.Bool() bool
result.Time() time.Time
result.Array() []gjson.Result
result.Map() map[string]gjson.Result
result.Get(path string) Result
result.ForEach(iterator func(key, value Result) bool)
result.Less(token Result, caseSensitive bool) bool
```
The `result.Value()` function returns an `interface{}` which requires type assertion and is one of the following Go types:
```go
boolean >> bool
number >> float64
string >> string
null >> nil
array >> []interface{}
object >> map[string]interface{}
```
The `result.Array()` function returns back an array of values.
If the result represents a non-existent value, then an empty array will be returned.
If the result is not a JSON array, the return value will be an array containing one result.
### 64-bit integers
The `result.Int()` and `result.Uint()` calls are capable of reading all 64 bits, allowing for large JSON integers.
```go
result.Int() int64 // -9223372036854775808 to 9223372036854775807
result.Uint() uint64 // 0 to 18446744073709551615
```
## Modifiers and path chaining
New in version 1.2 is support for modifier functions and path chaining.
A modifier is a path component that performs custom processing on the
json.
Multiple paths can be "chained" together using the pipe character.
This is useful for getting results from a modified query.
For example, using the built-in `@reverse` modifier on the above json document,
we'll get `children` array and reverse the order:
```
"children|@reverse" >> ["Jack","Alex","Sara"]
"children|@reverse|0" >> "Jack"
```
There are currently the following built-in modifiers:
- `@reverse`: Reverse an array or the members of an object.
- `@ugly`: Remove all whitespace from a json document.
- `@pretty`: Make the json document more human readable.
- `@this`: Returns the current element. It can be used to retrieve the root element.
- `@valid`: Ensure the json document is valid.
- `@flatten`: Flattens an array.
- `@join`: Joins multiple objects into a single object.
- `@keys`: Returns an array of keys for an object.
- `@values`: Returns an array of values for an object.
- `@tostr`: Converts json to a string. Wraps a json string.
- `@fromstr`: Converts a string from json. Unwraps a json string.
- `@group`: Groups arrays of objects. See [e4fc67c](https://github.com/tidwall/gjson/commit/e4fc67c92aeebf2089fabc7872f010e340d105db).
- `@dig`: Search for a value without providing its entire path. See [e8e87f2](https://github.com/tidwall/gjson/commit/e8e87f2a00dc41f3aba5631094e21f59a8cf8cbf).
### Modifier arguments
A modifier may accept an optional argument. The argument can be a valid JSON
document or just characters.
For example, the `@pretty` modifier takes a json object as its argument.
```
@pretty:{"sortKeys":true}
```
Which makes the json pretty and orders all of its keys.
```json
{
"age":37,
"children": ["Sara","Alex","Jack"],
"fav.movie": "Deer Hunter",
"friends": [
{"age": 44, "first": "Dale", "last": "Murphy"},
{"age": 68, "first": "Roger", "last": "Craig"},
{"age": 47, "first": "Jane", "last": "Murphy"}
],
"name": {"first": "Tom", "last": "Anderson"}
}
```
*The full list of `@pretty` options are `sortKeys`, `indent`, `prefix`, and `width`.
Please see [Pretty Options](https://github.com/tidwall/pretty#customized-output) for more information.*
### Custom modifiers
You can also add custom modifiers.
For example, here we create a modifier that makes the entire json document upper
or lower case.
```go
gjson.AddModifier("case", func(json, arg string) string {
if arg == "upper" {
return strings.ToUpper(json)
}
if arg == "lower" {
return strings.ToLower(json)
}
return json
})
```
```
"children|@case:upper" >> ["SARA","ALEX","JACK"]
"children|@case:lower|@reverse" >> ["jack","alex","sara"]
```
## JSON Lines
There's support for [JSON Lines](http://jsonlines.org/) using the `..` prefix, which treats a multilined document as an array.
For example:
```
{"name": "Gilbert", "age": 61}
{"name": "Alexa", "age": 34}
{"name": "May", "age": 57}
{"name": "Deloise", "age": 44}
```
```
..# >> 4
..1 >> {"name": "Alexa", "age": 34}
..3 >> {"name": "Deloise", "age": 44}
..#.name >> ["Gilbert","Alexa","May","Deloise"]
..#(name="May").age >> 57
```
The `ForEachLines` function will iterate through JSON lines.
```go
gjson.ForEachLine(json, func(line gjson.Result) bool{
println(line.String())
return true
})
```
## Get nested array values
Suppose you want all the last names from the following json:
```json
{
"programmers": [
{
"firstName": "Janet",
"lastName": "McLaughlin",
}, {
"firstName": "Elliotte",
"lastName": "Hunter",
}, {
"firstName": "Jason",
"lastName": "Harold",
}
]
}
```
You would use the path "programmers.#.lastName" like such:
```go
result := gjson.Get(json, "programmers.#.lastName")
for _, name := range result.Array() {
println(name.String())
}
```
You can also query an object inside an array:
```go
name := gjson.Get(json, `programmers.#(lastName="Hunter").firstName`)
println(name.String()) // prints "Elliotte"
```
## Iterate through an object or array
The `ForEach` function allows for quickly iterating through an object or array.
The key and value are passed to the iterator function for objects.
Only the value is passed for arrays.
Returning `false` from an iterator will stop iteration.
```go
result := gjson.Get(json, "programmers")
result.ForEach(func(key, value gjson.Result) bool {
println(value.String())
return true // keep iterating
})
```
## Simple Parse and Get
There's a `Parse(json)` function that will do a simple parse, and `result.Get(path)` that will search a result.
For example, all of these will return the same result:
```go
gjson.Parse(json).Get("name").Get("last")
gjson.Get(json, "name").Get("last")
gjson.Get(json, "name.last")
```
## Check for the existence of a value
Sometimes you just want to know if a value exists.
```go
value := gjson.Get(json, "name.last")
if !value.Exists() {
println("no last name")
} else {
println(value.String())
}
// Or as one step
if gjson.Get(json, "name.last").Exists() {
println("has a last name")
}
```
## Validate JSON
The `Get*` and `Parse*` functions expects that the json is well-formed. Bad json will not panic, but it may return back unexpected results.
If you are consuming JSON from an unpredictable source then you may want to validate prior to using GJSON.
```go
if !gjson.Valid(json) {
return errors.New("invalid json")
}
value := gjson.Get(json, "name.last")
```
## Unmarshal to a map
To unmarshal to a `map[string]interface{}`:
```go
m, ok := gjson.Parse(json).Value().(map[string]interface{})
if !ok {
// not a map
}
```
## Working with Bytes
If your JSON is contained in a `[]byte` slice, there's the [GetBytes](https://godoc.org/github.com/tidwall/gjson#GetBytes) function. This is preferred over `Get(string(data), path)`.
```go
var json []byte = ...
result := gjson.GetBytes(json, path)
```
If you are using the `gjson.GetBytes(json, path)` function and you want to avoid converting `result.Raw` to a `[]byte`, then you can use this pattern:
```go
var json []byte = ...
result := gjson.GetBytes(json, path)
var raw []byte
if result.Index > 0 {
raw = json[result.Index:result.Index+len(result.Raw)]
} else {
raw = []byte(result.Raw)
}
```
This is a best-effort no allocation sub slice of the original json. This method utilizes the `result.Index` field, which is the position of the raw data in the original json. It's possible that the value of `result.Index` equals zero, in which case the `result.Raw` is converted to a `[]byte`.
## Performance
Benchmarks of GJSON alongside [encoding/json](https://golang.org/pkg/encoding/json/),
[ffjson](https://github.com/pquerna/ffjson),
[EasyJSON](https://github.com/mailru/easyjson),
[jsonparser](https://github.com/buger/jsonparser),
and [json-iterator](https://github.com/json-iterator/go)
```
BenchmarkGJSONGet-10 17893731 202.1 ns/op 0 B/op 0 allocs/op
BenchmarkGJSONUnmarshalMap-10 1663548 2157 ns/op 1920 B/op 26 allocs/op
BenchmarkJSONUnmarshalMap-10 832236 4279 ns/op 2920 B/op 68 allocs/op
BenchmarkJSONUnmarshalStruct-10 1076475 3219 ns/op 920 B/op 12 allocs/op
BenchmarkJSONDecoder-10 585729 6126 ns/op 3845 B/op 160 allocs/op
BenchmarkFFJSONLexer-10 2508573 1391 ns/op 880 B/op 8 allocs/op
BenchmarkEasyJSONLexer-10 3000000 537.9 ns/op 501 B/op 5 allocs/op
BenchmarkJSONParserGet-10 13707510 263.9 ns/op 21 B/op 0 allocs/op
BenchmarkJSONIterator-10 3000000 561.2 ns/op 693 B/op 14 allocs/op
```
JSON document used:
```json
{
"widget": {
"debug": "on",
"window": {
"title": "Sample Konfabulator Widget",
"name": "main_window",
"width": 500,
"height": 500
},
"image": {
"src": "Images/Sun.png",
"hOffset": 250,
"vOffset": 250,
"alignment": "center"
},
"text": {
"data": "Click Here",
"size": 36,
"style": "bold",
"vOffset": 100,
"alignment": "center",
"onMouseUp": "sun1.opacity = (sun1.opacity / 100) * 90;"
}
}
}
```
Each operation was rotated through one of the following search paths:
```
widget.window.name
widget.image.hOffset
widget.text.onMouseUp
```
**
*These benchmarks were run on a MacBook Pro M1 Max using Go 1.22 and can be found [here](https://github.com/tidwall/gjson-benchmarks).*

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# GJSON Path Syntax
A GJSON Path is a text string syntax that describes a search pattern for quickly retrieving values from a JSON payload.
This document is designed to explain the structure of a GJSON Path through examples.
- [Path structure](#path-structure)
- [Basic](#basic)
- [Wildcards](#wildcards)
- [Escape Character](#escape-character)
- [Arrays](#arrays)
- [Queries](#queries)
- [Dot vs Pipe](#dot-vs-pipe)
- [Modifiers](#modifiers)
- [Multipaths](#multipaths)
- [Literals](#literals)
The definitive implementation is [github.com/tidwall/gjson](https://github.com/tidwall/gjson).
Use the [GJSON Playground](https://gjson.dev) to experiment with the syntax online.
## Path structure
A GJSON Path is intended to be easily expressed as a series of components separated by a `.` character.
Along with `.` character, there are a few more that have special meaning, including `|`, `#`, `@`, `\`, `*`, `!`, and `?`.
## Example
Given this JSON
```json
{
"name": {"first": "Tom", "last": "Anderson"},
"age":37,
"children": ["Sara","Alex","Jack"],
"fav.movie": "Deer Hunter",
"friends": [
{"first": "Dale", "last": "Murphy", "age": 44, "nets": ["ig", "fb", "tw"]},
{"first": "Roger", "last": "Craig", "age": 68, "nets": ["fb", "tw"]},
{"first": "Jane", "last": "Murphy", "age": 47, "nets": ["ig", "tw"]}
]
}
```
The following GJSON Paths evaluate to the accompanying values.
### Basic
In many cases you'll just want to retrieve values by object name or array index.
```go
name.last "Anderson"
name.first "Tom"
age 37
children ["Sara","Alex","Jack"]
children.0 "Sara"
children.1 "Alex"
friends.1 {"first": "Roger", "last": "Craig", "age": 68}
friends.1.first "Roger"
```
### Wildcards
A key may contain the special wildcard characters `*` and `?`.
The `*` will match on any zero+ characters, and `?` matches on any one character.
```go
child*.2 "Jack"
c?ildren.0 "Sara"
```
### Escape character
Special purpose characters, such as `.`, `*`, and `?` can be escaped with `\`.
```go
fav\.movie "Deer Hunter"
```
You'll also need to make sure that the `\` character is correctly escaped when hardcoding a path in your source code.
```go
// Go
val := gjson.Get(json, "fav\\.movie") // must escape the slash
val := gjson.Get(json, `fav\.movie`) // no need to escape the slash
```
```rust
// Rust
let val = gjson::get(json, "fav\\.movie") // must escape the slash
let val = gjson::get(json, r#"fav\.movie"#) // no need to escape the slash
```
### Arrays
The `#` character allows for digging into JSON Arrays.
To get the length of an array you'll just use the `#` all by itself.
```go
friends.# 3
friends.#.age [44,68,47]
```
### Queries
You can also query an array for the first match by using `#(...)`, or find all matches with `#(...)#`.
Queries support the `==`, `!=`, `<`, `<=`, `>`, `>=` comparison operators,
and the simple pattern matching `%` (like) and `!%` (not like) operators.
```go
friends.#(last=="Murphy").first "Dale"
friends.#(last=="Murphy")#.first ["Dale","Jane"]
friends.#(age>45)#.last ["Craig","Murphy"]
friends.#(first%"D*").last "Murphy"
friends.#(first!%"D*").last "Craig"
```
To query for a non-object value in an array, you can forgo the string to the right of the operator.
```go
children.#(!%"*a*") "Alex"
children.#(%"*a*")# ["Sara","Jack"]
```
Nested queries are allowed.
```go
friends.#(nets.#(=="fb"))#.first >> ["Dale","Roger"]
```
*Please note that prior to v1.3.0, queries used the `#[...]` brackets. This was
changed in v1.3.0 as to avoid confusion with the new [multipath](#multipaths)
syntax. For backwards compatibility, `#[...]` will continue to work until the
next major release.*
The `~` (tilde) operator will convert a value to a boolean before comparison.
Supported tilde comparison type are:
```
~true Converts true-ish values to true
~false Converts false-ish and non-existent values to true
~null Converts null and non-existent values to true
~* Converts any existing value to true
```
For example, using the following JSON:
```json
{
"vals": [
{ "a": 1, "b": "data" },
{ "a": 2, "b": true },
{ "a": 3, "b": false },
{ "a": 4, "b": "0" },
{ "a": 5, "b": 0 },
{ "a": 6, "b": "1" },
{ "a": 7, "b": 1 },
{ "a": 8, "b": "true" },
{ "a": 9, "b": false },
{ "a": 10, "b": null },
{ "a": 11 }
]
}
```
To query for all true-ish or false-ish values:
```
vals.#(b==~true)#.a >> [2,6,7,8]
vals.#(b==~false)#.a >> [3,4,5,9,10,11]
```
The last value which was non-existent is treated as `false`
To query for null and explicit value existence:
```
vals.#(b==~null)#.a >> [10,11]
vals.#(b==~*)#.a >> [1,2,3,4,5,6,7,8,9,10]
vals.#(b!=~*)#.a >> [11]
```
### Dot vs Pipe
The `.` is standard separator, but it's also possible to use a `|`.
In most cases they both end up returning the same results.
The cases where`|` differs from `.` is when it's used after the `#` for [Arrays](#arrays) and [Queries](#queries).
Here are some examples
```go
friends.0.first "Dale"
friends|0.first "Dale"
friends.0|first "Dale"
friends|0|first "Dale"
friends|# 3
friends.# 3
friends.#(last="Murphy")# [{"first": "Dale", "last": "Murphy", "age": 44},{"first": "Jane", "last": "Murphy", "age": 47}]
friends.#(last="Murphy")#.first ["Dale","Jane"]
friends.#(last="Murphy")#|first <non-existent>
friends.#(last="Murphy")#.0 []
friends.#(last="Murphy")#|0 {"first": "Dale", "last": "Murphy", "age": 44}
friends.#(last="Murphy")#.# []
friends.#(last="Murphy")#|# 2
```
Let's break down a few of these.
The path `friends.#(last="Murphy")#` all by itself results in
```json
[{"first": "Dale", "last": "Murphy", "age": 44},{"first": "Jane", "last": "Murphy", "age": 47}]
```
The `.first` suffix will process the `first` path on each array element *before* returning the results. Which becomes
```json
["Dale","Jane"]
```
But the `|first` suffix actually processes the `first` path *after* the previous result.
Since the previous result is an array, not an object, it's not possible to process
because `first` does not exist.
Yet, `|0` suffix returns
```json
{"first": "Dale", "last": "Murphy", "age": 44}
```
Because `0` is the first index of the previous result.
### Modifiers
A modifier is a path component that performs custom processing on the JSON.
For example, using the built-in `@reverse` modifier on the above JSON payload will reverse the `children` array:
```go
children.@reverse ["Jack","Alex","Sara"]
children.@reverse.0 "Jack"
```
There are currently the following built-in modifiers:
- `@reverse`: Reverse an array or the members of an object.
- `@ugly`: Remove all whitespace from JSON.
- `@pretty`: Make the JSON more human readable.
- `@this`: Returns the current element. It can be used to retrieve the root element.
- `@valid`: Ensure the json document is valid.
- `@flatten`: Flattens an array.
- `@join`: Joins multiple objects into a single object.
- `@keys`: Returns an array of keys for an object.
- `@values`: Returns an array of values for an object.
- `@tostr`: Converts json to a string. Wraps a json string.
- `@fromstr`: Converts a string from json. Unwraps a json string.
- `@group`: Groups arrays of objects. See [e4fc67c](https://github.com/tidwall/gjson/commit/e4fc67c92aeebf2089fabc7872f010e340d105db).
- `@dig`: Search for a value without providing its entire path. See [e8e87f2](https://github.com/tidwall/gjson/commit/e8e87f2a00dc41f3aba5631094e21f59a8cf8cbf).
#### Modifier arguments
A modifier may accept an optional argument. The argument can be a valid JSON payload or just characters.
For example, the `@pretty` modifier takes a json object as its argument.
```
@pretty:{"sortKeys":true}
```
Which makes the json pretty and orders all of its keys.
```json
{
"age":37,
"children": ["Sara","Alex","Jack"],
"fav.movie": "Deer Hunter",
"friends": [
{"age": 44, "first": "Dale", "last": "Murphy"},
{"age": 68, "first": "Roger", "last": "Craig"},
{"age": 47, "first": "Jane", "last": "Murphy"}
],
"name": {"first": "Tom", "last": "Anderson"}
}
```
*The full list of `@pretty` options are `sortKeys`, `indent`, `prefix`, and `width`.
Please see [Pretty Options](https://github.com/tidwall/pretty#customized-output) for more information.*
#### Custom modifiers
You can also add custom modifiers.
For example, here we create a modifier which makes the entire JSON payload upper or lower case.
```go
gjson.AddModifier("case", func(json, arg string) string {
if arg == "upper" {
return strings.ToUpper(json)
}
if arg == "lower" {
return strings.ToLower(json)
}
return json
})
"children.@case:upper" ["SARA","ALEX","JACK"]
"children.@case:lower.@reverse" ["jack","alex","sara"]
```
*Note: Custom modifiers are not yet available in the Rust version*
### Multipaths
Starting with v1.3.0, GJSON added the ability to join multiple paths together
to form new documents. Wrapping comma-separated paths between `[...]` or
`{...}` will result in a new array or object, respectively.
For example, using the given multipath:
```
{name.first,age,"the_murphys":friends.#(last="Murphy")#.first}
```
Here we selected the first name, age, and the first name for friends with the
last name "Murphy".
You'll notice that an optional key can be provided, in this case
"the_murphys", to force assign a key to a value. Otherwise, the name of the
actual field will be used, in this case "first". If a name cannot be
determined, then "_" is used.
This results in
```json
{"first":"Tom","age":37,"the_murphys":["Dale","Jane"]}
```
### Literals
Starting with v1.12.0, GJSON added support of json literals, which provides a way for constructing static blocks of json. This is can be particularly useful when constructing a new json document using [multipaths](#multipaths).
A json literal begins with the '!' declaration character.
For example, using the given multipath:
```
{name.first,age,"company":!"Happysoft","employed":!true}
```
Here we selected the first name and age. Then add two new fields, "company" and "employed".
This results in
```json
{"first":"Tom","age":37,"company":"Happysoft","employed":true}
```
*See issue [#249](https://github.com/tidwall/gjson/issues/249) for additional context on JSON Literals.*

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The MIT License (MIT)
Copyright (c) 2016 Josh Baker
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# Match
[![GoDoc](https://godoc.org/github.com/tidwall/match?status.svg)](https://godoc.org/github.com/tidwall/match)
Match is a very simple pattern matcher where '*' matches on any
number characters and '?' matches on any one character.
## Installing
```
go get -u github.com/tidwall/match
```
## Example
```go
match.Match("hello", "*llo")
match.Match("jello", "?ello")
match.Match("hello", "h*o")
```
## Contact
Josh Baker [@tidwall](http://twitter.com/tidwall)
## License
Match source code is available under the MIT [License](/LICENSE).

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// Package match provides a simple pattern matcher with unicode support.
package match
import (
"unicode/utf8"
)
// Match returns true if str matches pattern. This is a very
// simple wildcard match where '*' matches on any number characters
// and '?' matches on any one character.
//
// pattern:
//
// { term }
//
// term:
//
// '*' matches any sequence of non-Separator characters
// '?' matches any single non-Separator character
// c matches character c (c != '*', '?', '\\')
// '\\' c matches character c
func Match(str, pattern string) bool {
return match0(str, pattern, false)
}
// MatchNoCase is the same as Match but performs a case-insensitive match.
// Such that string "Hello World" with match with lower case pattern "hello*"
func MatchNoCase(str, pattern string) bool {
return match0(str, pattern, true)
}
func match0(str, pattern string, nocase bool) bool {
if pattern == "*" {
return true
}
return match(str, pattern, 0, nil, -1, nocase) == rMatch
}
// MatchLimit is the same as Match but will limit the complexity of the match
// operation. This is to avoid long running matches, specifically to avoid ReDos
// attacks from arbritary inputs.
//
// How it works:
// The underlying match routine is recursive and may call itself when it
// encounters a sandwiched wildcard pattern, such as: `user:*:name`.
// Everytime it calls itself a counter is incremented.
// The operation is stopped when counter > maxcomp*len(str).
func MatchLimit(str, pattern string, maxcomp int) (matched, stopped bool) {
return matchLimit0(str, pattern, maxcomp, false)
}
func MatchLimitNoCase(str, pattern string, maxcomp int,
) (matched, stopped bool) {
return matchLimit0(str, pattern, maxcomp, true)
}
func matchLimit0(str, pattern string, maxcomp int, nocase bool,
) (matched, stopped bool) {
if pattern == "*" {
return true, false
}
counter := 0
r := match(str, pattern, len(str), &counter, maxcomp, nocase)
if r == rStop {
return false, true
}
return r == rMatch, false
}
type result int
const (
rNoMatch result = iota
rMatch
rStop
)
func tolower(r rune) rune {
if r >= 'A' && r <= 'Z' {
return r + 32
}
return r
}
func match(str, pat string, slen int, counter *int, maxcomp int, nocase bool,
) result {
// check complexity limit
if maxcomp > -1 {
if *counter > slen*maxcomp {
return rStop
}
*counter++
}
for len(pat) > 0 {
var wild bool
pc, ps := rune(pat[0]), 1
if pc > 0x7f {
pc, ps = utf8.DecodeRuneInString(pat)
}
var sc rune
var ss int
if len(str) > 0 {
sc, ss = rune(str[0]), 1
if sc > 0x7f {
sc, ss = utf8.DecodeRuneInString(str)
}
}
switch pc {
case '?':
if ss == 0 {
return rNoMatch
}
case '*':
// Ignore repeating stars.
for len(pat) > 1 && pat[1] == '*' {
pat = pat[1:]
}
// If this star is the last character then it must be a match.
if len(pat) == 1 {
return rMatch
}
// Match and trim any non-wildcard suffix characters.
var ok bool
str, pat, ok = matchTrimSuffix(str, pat, nocase)
if !ok {
return rNoMatch
}
// Check for single star again.
if len(pat) == 1 {
return rMatch
}
// Perform recursive wildcard search.
r := match(str, pat[1:], slen, counter, maxcomp, nocase)
if r != rNoMatch {
return r
}
if len(str) == 0 {
return rNoMatch
}
wild = true
default:
if ss == 0 {
return rNoMatch
}
if pc == '\\' {
pat = pat[ps:]
pc, ps = utf8.DecodeRuneInString(pat)
if ps == 0 {
return rNoMatch
}
}
if nocase {
sc, pc = tolower(sc), tolower(pc)
}
if sc != pc {
return rNoMatch
}
}
str = str[ss:]
if !wild {
pat = pat[ps:]
}
}
if len(str) == 0 {
return rMatch
}
return rNoMatch
}
// matchTrimSuffix matches and trims any non-wildcard suffix characters.
// Returns the trimed string and pattern.
//
// This is called because the pattern contains extra data after the wildcard
// star. Here we compare any suffix characters in the pattern to the suffix of
// the target string. Basically a reverse match that stops when a wildcard
// character is reached. This is a little trickier than a forward match because
// we need to evaluate an escaped character in reverse.
//
// Any matched characters will be trimmed from both the target
// string and the pattern.
func matchTrimSuffix(str, pat string, nocase bool) (string, string, bool) {
// It's expected that the pattern has at least two bytes and the first byte
// is a wildcard star '*'
match := true
for len(str) > 0 && len(pat) > 1 {
pc, ps := utf8.DecodeLastRuneInString(pat)
var esc bool
for i := 0; ; i++ {
if pat[len(pat)-ps-i-1] != '\\' {
if i&1 == 1 {
esc = true
ps++
}
break
}
}
if pc == '*' && !esc {
match = true
break
}
sc, ss := utf8.DecodeLastRuneInString(str)
if nocase {
pc, sc = tolower(pc), tolower(sc)
}
if !((pc == '?' && !esc) || pc == sc) {
match = false
break
}
str = str[:len(str)-ss]
pat = pat[:len(pat)-ps]
}
return str, pat, match
}
var maxRuneBytes = [...]byte{244, 143, 191, 191}
// Allowable parses the pattern and determines the minimum and maximum allowable
// values that the pattern can represent.
// When the max cannot be determined, 'true' will be returned
// for infinite.
func Allowable(pattern string) (min, max string) {
if pattern == "" || pattern[0] == '*' {
return "", ""
}
minb := make([]byte, 0, len(pattern))
maxb := make([]byte, 0, len(pattern))
var wild bool
for i := 0; i < len(pattern); i++ {
if pattern[i] == '*' {
wild = true
break
}
if pattern[i] == '?' {
minb = append(minb, 0)
maxb = append(maxb, maxRuneBytes[:]...)
} else {
minb = append(minb, pattern[i])
maxb = append(maxb, pattern[i])
}
}
if wild {
r, n := utf8.DecodeLastRune(maxb)
if r != utf8.RuneError {
if r < utf8.MaxRune {
r++
if r > 0x7f {
b := make([]byte, 4)
nn := utf8.EncodeRune(b, r)
maxb = append(maxb[:len(maxb)-n], b[:nn]...)
} else {
maxb = append(maxb[:len(maxb)-n], byte(r))
}
}
}
}
return string(minb), string(maxb)
}
// IsPattern returns true if the string is a pattern.
func IsPattern(str string) bool {
for i := 0; i < len(str); i++ {
if str[i] == '*' || str[i] == '?' {
return true
}
}
return false
}

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The MIT License (MIT)
Copyright (c) 2016 Josh Baker
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
the Software, and to permit persons to whom the Software is furnished to do so,
subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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<p align="center">
<img
src="logo.png"
width="240" height="78" border="0" alt="SJSON">
<br>
<a href="https://godoc.org/github.com/tidwall/sjson"><img src="https://img.shields.io/badge/api-reference-blue.svg?style=flat-square" alt="GoDoc"></a>
</p>
<p align="center">set a json value quickly</p>
SJSON is a Go package that provides a [very fast](#performance) and simple way to set a value in a json document.
For quickly retrieving json values check out [GJSON](https://github.com/tidwall/gjson).
For a command line interface check out [JJ](https://github.com/tidwall/jj).
Getting Started
===============
Installing
----------
To start using SJSON, install Go and run `go get`:
```sh
$ go get -u github.com/tidwall/sjson
```
This will retrieve the library.
Set a value
-----------
Set sets the value for the specified path.
A path is in dot syntax, such as "name.last" or "age".
This function expects that the json is well-formed and validated.
Invalid json will not panic, but it may return back unexpected results.
Invalid paths may return an error.
```go
package main
import "github.com/tidwall/sjson"
const json = `{"name":{"first":"Janet","last":"Prichard"},"age":47}`
func main() {
value, _ := sjson.Set(json, "name.last", "Anderson")
println(value)
}
```
This will print:
```json
{"name":{"first":"Janet","last":"Anderson"},"age":47}
```
Path syntax
-----------
A path is a series of keys separated by a dot.
The dot and colon characters can be escaped with ``\``.
```json
{
"name": {"first": "Tom", "last": "Anderson"},
"age":37,
"children": ["Sara","Alex","Jack"],
"fav.movie": "Deer Hunter",
"friends": [
{"first": "James", "last": "Murphy"},
{"first": "Roger", "last": "Craig"}
]
}
```
```
"name.last" >> "Anderson"
"age" >> 37
"children.1" >> "Alex"
"friends.1.last" >> "Craig"
```
The `-1` key can be used to append a value to an existing array:
```
"children.-1" >> appends a new value to the end of the children array
```
Normally number keys are used to modify arrays, but it's possible to force a numeric object key by using the colon character:
```json
{
"users":{
"2313":{"name":"Sara"},
"7839":{"name":"Andy"}
}
}
```
A colon path would look like:
```
"users.:2313.name" >> "Sara"
```
Supported types
---------------
Pretty much any type is supported:
```go
sjson.Set(`{"key":true}`, "key", nil)
sjson.Set(`{"key":true}`, "key", false)
sjson.Set(`{"key":true}`, "key", 1)
sjson.Set(`{"key":true}`, "key", 10.5)
sjson.Set(`{"key":true}`, "key", "hello")
sjson.Set(`{"key":true}`, "key", []string{"hello", "world"})
sjson.Set(`{"key":true}`, "key", map[string]interface{}{"hello":"world"})
```
When a type is not recognized, SJSON will fallback to the `encoding/json` Marshaller.
Examples
--------
Set a value from empty document:
```go
value, _ := sjson.Set("", "name", "Tom")
println(value)
// Output:
// {"name":"Tom"}
```
Set a nested value from empty document:
```go
value, _ := sjson.Set("", "name.last", "Anderson")
println(value)
// Output:
// {"name":{"last":"Anderson"}}
```
Set a new value:
```go
value, _ := sjson.Set(`{"name":{"last":"Anderson"}}`, "name.first", "Sara")
println(value)
// Output:
// {"name":{"first":"Sara","last":"Anderson"}}
```
Update an existing value:
```go
value, _ := sjson.Set(`{"name":{"last":"Anderson"}}`, "name.last", "Smith")
println(value)
// Output:
// {"name":{"last":"Smith"}}
```
Set a new array value:
```go
value, _ := sjson.Set(`{"friends":["Andy","Carol"]}`, "friends.2", "Sara")
println(value)
// Output:
// {"friends":["Andy","Carol","Sara"]
```
Append an array value by using the `-1` key in a path:
```go
value, _ := sjson.Set(`{"friends":["Andy","Carol"]}`, "friends.-1", "Sara")
println(value)
// Output:
// {"friends":["Andy","Carol","Sara"]
```
Append an array value that is past the end:
```go
value, _ := sjson.Set(`{"friends":["Andy","Carol"]}`, "friends.4", "Sara")
println(value)
// Output:
// {"friends":["Andy","Carol",null,null,"Sara"]
```
Delete a value:
```go
value, _ := sjson.Delete(`{"name":{"first":"Sara","last":"Anderson"}}`, "name.first")
println(value)
// Output:
// {"name":{"last":"Anderson"}}
```
Delete an array value:
```go
value, _ := sjson.Delete(`{"friends":["Andy","Carol"]}`, "friends.1")
println(value)
// Output:
// {"friends":["Andy"]}
```
Delete the last array value:
```go
value, _ := sjson.Delete(`{"friends":["Andy","Carol"]}`, "friends.-1")
println(value)
// Output:
// {"friends":["Andy"]}
```
## Performance
Benchmarks of SJSON alongside [encoding/json](https://golang.org/pkg/encoding/json/),
[ffjson](https://github.com/pquerna/ffjson),
[EasyJSON](https://github.com/mailru/easyjson),
and [Gabs](https://github.com/Jeffail/gabs)
```
Benchmark_SJSON-8 3000000 805 ns/op 1077 B/op 3 allocs/op
Benchmark_SJSON_ReplaceInPlace-8 3000000 449 ns/op 0 B/op 0 allocs/op
Benchmark_JSON_Map-8 300000 21236 ns/op 6392 B/op 150 allocs/op
Benchmark_JSON_Struct-8 300000 14691 ns/op 1789 B/op 24 allocs/op
Benchmark_Gabs-8 300000 21311 ns/op 6752 B/op 150 allocs/op
Benchmark_FFJSON-8 300000 17673 ns/op 3589 B/op 47 allocs/op
Benchmark_EasyJSON-8 1500000 3119 ns/op 1061 B/op 13 allocs/op
```
JSON document used:
```json
{
"widget": {
"debug": "on",
"window": {
"title": "Sample Konfabulator Widget",
"name": "main_window",
"width": 500,
"height": 500
},
"image": {
"src": "Images/Sun.png",
"hOffset": 250,
"vOffset": 250,
"alignment": "center"
},
"text": {
"data": "Click Here",
"size": 36,
"style": "bold",
"vOffset": 100,
"alignment": "center",
"onMouseUp": "sun1.opacity = (sun1.opacity / 100) * 90;"
}
}
}
```
Each operation was rotated though one of the following search paths:
```
widget.window.name
widget.image.hOffset
widget.text.onMouseUp
```
*These benchmarks were run on a MacBook Pro 15" 2.8 GHz Intel Core i7 using Go 1.7 and can be be found [here](https://github.com/tidwall/sjson-benchmarks)*.
## Contact
Josh Baker [@tidwall](http://twitter.com/tidwall)
## License
SJSON source code is available under the MIT [License](/LICENSE).

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// Package sjson provides setting json values.
package sjson
import (
jsongo "encoding/json"
"sort"
"strconv"
"unsafe"
"github.com/tidwall/gjson"
)
type errorType struct {
msg string
}
func (err *errorType) Error() string {
return err.msg
}
// Options represents additional options for the Set and Delete functions.
type Options struct {
// Optimistic is a hint that the value likely exists which
// allows for the sjson to perform a fast-track search and replace.
Optimistic bool
// ReplaceInPlace is a hint to replace the input json rather than
// allocate a new json byte slice. When this field is specified
// the input json will not longer be valid and it should not be used
// In the case when the destination slice doesn't have enough free
// bytes to replace the data in place, a new bytes slice will be
// created under the hood.
// The Optimistic flag must be set to true and the input must be a
// byte slice in order to use this field.
ReplaceInPlace bool
}
type pathResult struct {
part string // current key part
gpart string // gjson get part
path string // remaining path
force bool // force a string key
more bool // there is more path to parse
}
func isSimpleChar(ch byte) bool {
switch ch {
case '|', '#', '@', '*', '?':
return false
default:
return true
}
}
func parsePath(path string) (res pathResult, simple bool) {
var r pathResult
if len(path) > 0 && path[0] == ':' {
r.force = true
path = path[1:]
}
for i := 0; i < len(path); i++ {
if path[i] == '.' {
r.part = path[:i]
r.gpart = path[:i]
r.path = path[i+1:]
r.more = true
return r, true
}
if !isSimpleChar(path[i]) {
return r, false
}
if path[i] == '\\' {
// go into escape mode. this is a slower path that
// strips off the escape character from the part.
epart := []byte(path[:i])
gpart := []byte(path[:i+1])
i++
if i < len(path) {
epart = append(epart, path[i])
gpart = append(gpart, path[i])
i++
for ; i < len(path); i++ {
if path[i] == '\\' {
gpart = append(gpart, '\\')
i++
if i < len(path) {
epart = append(epart, path[i])
gpart = append(gpart, path[i])
}
continue
} else if path[i] == '.' {
r.part = string(epart)
r.gpart = string(gpart)
r.path = path[i+1:]
r.more = true
return r, true
} else if !isSimpleChar(path[i]) {
return r, false
}
epart = append(epart, path[i])
gpart = append(gpart, path[i])
}
}
// append the last part
r.part = string(epart)
r.gpart = string(gpart)
return r, true
}
}
r.part = path
r.gpart = path
return r, true
}
func mustMarshalString(s string) bool {
for i := 0; i < len(s); i++ {
if s[i] < ' ' || s[i] > 0x7f || s[i] == '"' || s[i] == '\\' {
return true
}
}
return false
}
// appendStringify makes a json string and appends to buf.
func appendStringify(buf []byte, s string) []byte {
if mustMarshalString(s) {
b, _ := jsongo.Marshal(s)
return append(buf, b...)
}
buf = append(buf, '"')
buf = append(buf, s...)
buf = append(buf, '"')
return buf
}
// appendBuild builds a json block from a json path.
func appendBuild(buf []byte, array bool, paths []pathResult, raw string,
stringify bool) []byte {
if !array {
buf = appendStringify(buf, paths[0].part)
buf = append(buf, ':')
}
if len(paths) > 1 {
n, numeric := atoui(paths[1])
if numeric || (!paths[1].force && paths[1].part == "-1") {
buf = append(buf, '[')
buf = appendRepeat(buf, "null,", n)
buf = appendBuild(buf, true, paths[1:], raw, stringify)
buf = append(buf, ']')
} else {
buf = append(buf, '{')
buf = appendBuild(buf, false, paths[1:], raw, stringify)
buf = append(buf, '}')
}
} else {
if stringify {
buf = appendStringify(buf, raw)
} else {
buf = append(buf, raw...)
}
}
return buf
}
// atoui does a rip conversion of string -> unigned int.
func atoui(r pathResult) (n int, ok bool) {
if r.force {
return 0, false
}
for i := 0; i < len(r.part); i++ {
if r.part[i] < '0' || r.part[i] > '9' {
return 0, false
}
n = n*10 + int(r.part[i]-'0')
}
return n, true
}
// appendRepeat repeats string "n" times and appends to buf.
func appendRepeat(buf []byte, s string, n int) []byte {
for i := 0; i < n; i++ {
buf = append(buf, s...)
}
return buf
}
// trim does a rip trim
func trim(s string) string {
for len(s) > 0 {
if s[0] <= ' ' {
s = s[1:]
continue
}
break
}
for len(s) > 0 {
if s[len(s)-1] <= ' ' {
s = s[:len(s)-1]
continue
}
break
}
return s
}
// deleteTailItem deletes the previous key or comma.
func deleteTailItem(buf []byte) ([]byte, bool) {
loop:
for i := len(buf) - 1; i >= 0; i-- {
// look for either a ',',':','['
switch buf[i] {
case '[':
return buf, true
case ',':
return buf[:i], false
case ':':
// delete tail string
i--
for ; i >= 0; i-- {
if buf[i] == '"' {
i--
for ; i >= 0; i-- {
if buf[i] == '"' {
i--
if i >= 0 && buf[i] == '\\' {
i--
continue
}
for ; i >= 0; i-- {
// look for either a ',','{'
switch buf[i] {
case '{':
return buf[:i+1], true
case ',':
return buf[:i], false
}
}
}
}
break
}
}
break loop
}
}
return buf, false
}
var errNoChange = &errorType{"no change"}
func appendRawPaths(buf []byte, jstr string, paths []pathResult, raw string,
stringify, del bool) ([]byte, error) {
var err error
var res gjson.Result
var found bool
if del {
if paths[0].part == "-1" && !paths[0].force {
res = gjson.Get(jstr, "#")
if res.Int() > 0 {
res = gjson.Get(jstr, strconv.FormatInt(int64(res.Int()-1), 10))
found = true
}
}
}
if !found {
res = gjson.Get(jstr, paths[0].gpart)
}
if res.Index > 0 {
if len(paths) > 1 {
buf = append(buf, jstr[:res.Index]...)
buf, err = appendRawPaths(buf, res.Raw, paths[1:], raw,
stringify, del)
if err != nil {
return nil, err
}
buf = append(buf, jstr[res.Index+len(res.Raw):]...)
return buf, nil
}
buf = append(buf, jstr[:res.Index]...)
var exidx int // additional forward stripping
if del {
var delNextComma bool
buf, delNextComma = deleteTailItem(buf)
if delNextComma {
i, j := res.Index+len(res.Raw), 0
for ; i < len(jstr); i, j = i+1, j+1 {
if jstr[i] <= ' ' {
continue
}
if jstr[i] == ',' {
exidx = j + 1
}
break
}
}
} else {
if stringify {
buf = appendStringify(buf, raw)
} else {
buf = append(buf, raw...)
}
}
buf = append(buf, jstr[res.Index+len(res.Raw)+exidx:]...)
return buf, nil
}
if del {
return nil, errNoChange
}
n, numeric := atoui(paths[0])
isempty := true
for i := 0; i < len(jstr); i++ {
if jstr[i] > ' ' {
isempty = false
break
}
}
if isempty {
if numeric {
jstr = "[]"
} else {
jstr = "{}"
}
}
jsres := gjson.Parse(jstr)
if jsres.Type != gjson.JSON {
if numeric {
jstr = "[]"
} else {
jstr = "{}"
}
jsres = gjson.Parse(jstr)
}
var comma bool
for i := 1; i < len(jsres.Raw); i++ {
if jsres.Raw[i] <= ' ' {
continue
}
if jsres.Raw[i] == '}' || jsres.Raw[i] == ']' {
break
}
comma = true
break
}
switch jsres.Raw[0] {
default:
return nil, &errorType{"json must be an object or array"}
case '{':
end := len(jsres.Raw) - 1
for ; end > 0; end-- {
if jsres.Raw[end] == '}' {
break
}
}
buf = append(buf, jsres.Raw[:end]...)
if comma {
buf = append(buf, ',')
}
buf = appendBuild(buf, false, paths, raw, stringify)
buf = append(buf, '}')
return buf, nil
case '[':
var appendit bool
if !numeric {
if paths[0].part == "-1" && !paths[0].force {
appendit = true
} else {
return nil, &errorType{
"cannot set array element for non-numeric key '" +
paths[0].part + "'"}
}
}
if appendit {
njson := trim(jsres.Raw)
if njson[len(njson)-1] == ']' {
njson = njson[:len(njson)-1]
}
buf = append(buf, njson...)
if comma {
buf = append(buf, ',')
}
buf = appendBuild(buf, true, paths, raw, stringify)
buf = append(buf, ']')
return buf, nil
}
buf = append(buf, '[')
ress := jsres.Array()
for i := 0; i < len(ress); i++ {
if i > 0 {
buf = append(buf, ',')
}
buf = append(buf, ress[i].Raw...)
}
if len(ress) == 0 {
buf = appendRepeat(buf, "null,", n-len(ress))
} else {
buf = appendRepeat(buf, ",null", n-len(ress))
if comma {
buf = append(buf, ',')
}
}
buf = appendBuild(buf, true, paths, raw, stringify)
buf = append(buf, ']')
return buf, nil
}
}
func isOptimisticPath(path string) bool {
for i := 0; i < len(path); i++ {
if path[i] < '.' || path[i] > 'z' {
return false
}
if path[i] > '9' && path[i] < 'A' {
return false
}
if path[i] > 'z' {
return false
}
}
return true
}
// Set sets a json value for the specified path.
// A path is in dot syntax, such as "name.last" or "age".
// This function expects that the json is well-formed, and does not validate.
// Invalid json will not panic, but it may return back unexpected results.
// An error is returned if the path is not valid.
//
// A path is a series of keys separated by a dot.
//
// {
// "name": {"first": "Tom", "last": "Anderson"},
// "age":37,
// "children": ["Sara","Alex","Jack"],
// "friends": [
// {"first": "James", "last": "Murphy"},
// {"first": "Roger", "last": "Craig"}
// ]
// }
// "name.last" >> "Anderson"
// "age" >> 37
// "children.1" >> "Alex"
//
func Set(json, path string, value interface{}) (string, error) {
return SetOptions(json, path, value, nil)
}
// SetBytes sets a json value for the specified path.
// If working with bytes, this method preferred over
// Set(string(data), path, value)
func SetBytes(json []byte, path string, value interface{}) ([]byte, error) {
return SetBytesOptions(json, path, value, nil)
}
// SetRaw sets a raw json value for the specified path.
// This function works the same as Set except that the value is set as a
// raw block of json. This allows for setting premarshalled json objects.
func SetRaw(json, path, value string) (string, error) {
return SetRawOptions(json, path, value, nil)
}
// SetRawOptions sets a raw json value for the specified path with options.
// This furnction works the same as SetOptions except that the value is set
// as a raw block of json. This allows for setting premarshalled json objects.
func SetRawOptions(json, path, value string, opts *Options) (string, error) {
var optimistic bool
if opts != nil {
optimistic = opts.Optimistic
}
res, err := set(json, path, value, false, false, optimistic, false)
if err == errNoChange {
return json, nil
}
return string(res), err
}
// SetRawBytes sets a raw json value for the specified path.
// If working with bytes, this method preferred over
// SetRaw(string(data), path, value)
func SetRawBytes(json []byte, path string, value []byte) ([]byte, error) {
return SetRawBytesOptions(json, path, value, nil)
}
type dtype struct{}
// Delete deletes a value from json for the specified path.
func Delete(json, path string) (string, error) {
return Set(json, path, dtype{})
}
// DeleteBytes deletes a value from json for the specified path.
func DeleteBytes(json []byte, path string) ([]byte, error) {
return SetBytes(json, path, dtype{})
}
type stringHeader struct {
data unsafe.Pointer
len int
}
type sliceHeader struct {
data unsafe.Pointer
len int
cap int
}
func set(jstr, path, raw string,
stringify, del, optimistic, inplace bool) ([]byte, error) {
if path == "" {
return []byte(jstr), &errorType{"path cannot be empty"}
}
if !del && optimistic && isOptimisticPath(path) {
res := gjson.Get(jstr, path)
if res.Exists() && res.Index > 0 {
sz := len(jstr) - len(res.Raw) + len(raw)
if stringify {
sz += 2
}
if inplace && sz <= len(jstr) {
if !stringify || !mustMarshalString(raw) {
jsonh := *(*stringHeader)(unsafe.Pointer(&jstr))
jsonbh := sliceHeader{
data: jsonh.data, len: jsonh.len, cap: jsonh.len}
jbytes := *(*[]byte)(unsafe.Pointer(&jsonbh))
if stringify {
jbytes[res.Index] = '"'
copy(jbytes[res.Index+1:], []byte(raw))
jbytes[res.Index+1+len(raw)] = '"'
copy(jbytes[res.Index+1+len(raw)+1:],
jbytes[res.Index+len(res.Raw):])
} else {
copy(jbytes[res.Index:], []byte(raw))
copy(jbytes[res.Index+len(raw):],
jbytes[res.Index+len(res.Raw):])
}
return jbytes[:sz], nil
}
return []byte(jstr), nil
}
buf := make([]byte, 0, sz)
buf = append(buf, jstr[:res.Index]...)
if stringify {
buf = appendStringify(buf, raw)
} else {
buf = append(buf, raw...)
}
buf = append(buf, jstr[res.Index+len(res.Raw):]...)
return buf, nil
}
}
var paths []pathResult
r, simple := parsePath(path)
if simple {
paths = append(paths, r)
for r.more {
r, simple = parsePath(r.path)
if !simple {
break
}
paths = append(paths, r)
}
}
if !simple {
if del {
return []byte(jstr),
&errorType{"cannot delete value from a complex path"}
}
return setComplexPath(jstr, path, raw, stringify)
}
njson, err := appendRawPaths(nil, jstr, paths, raw, stringify, del)
if err != nil {
return []byte(jstr), err
}
return njson, nil
}
func setComplexPath(jstr, path, raw string, stringify bool) ([]byte, error) {
res := gjson.Get(jstr, path)
if !res.Exists() || !(res.Index != 0 || len(res.Indexes) != 0) {
return []byte(jstr), errNoChange
}
if res.Index != 0 {
njson := []byte(jstr[:res.Index])
if stringify {
njson = appendStringify(njson, raw)
} else {
njson = append(njson, raw...)
}
njson = append(njson, jstr[res.Index+len(res.Raw):]...)
jstr = string(njson)
}
if len(res.Indexes) > 0 {
type val struct {
index int
res gjson.Result
}
vals := make([]val, 0, len(res.Indexes))
res.ForEach(func(_, vres gjson.Result) bool {
vals = append(vals, val{res: vres})
return true
})
if len(res.Indexes) != len(vals) {
return []byte(jstr), errNoChange
}
for i := 0; i < len(res.Indexes); i++ {
vals[i].index = res.Indexes[i]
}
sort.SliceStable(vals, func(i, j int) bool {
return vals[i].index > vals[j].index
})
for _, val := range vals {
vres := val.res
index := val.index
njson := []byte(jstr[:index])
if stringify {
njson = appendStringify(njson, raw)
} else {
njson = append(njson, raw...)
}
njson = append(njson, jstr[index+len(vres.Raw):]...)
jstr = string(njson)
}
}
return []byte(jstr), nil
}
// SetOptions sets a json value for the specified path with options.
// A path is in dot syntax, such as "name.last" or "age".
// This function expects that the json is well-formed, and does not validate.
// Invalid json will not panic, but it may return back unexpected results.
// An error is returned if the path is not valid.
func SetOptions(json, path string, value interface{},
opts *Options) (string, error) {
if opts != nil {
if opts.ReplaceInPlace {
// it's not safe to replace bytes in-place for strings
// copy the Options and set options.ReplaceInPlace to false.
nopts := *opts
opts = &nopts
opts.ReplaceInPlace = false
}
}
jsonh := *(*stringHeader)(unsafe.Pointer(&json))
jsonbh := sliceHeader{data: jsonh.data, len: jsonh.len, cap: jsonh.len}
jsonb := *(*[]byte)(unsafe.Pointer(&jsonbh))
res, err := SetBytesOptions(jsonb, path, value, opts)
return string(res), err
}
// SetBytesOptions sets a json value for the specified path with options.
// If working with bytes, this method preferred over
// SetOptions(string(data), path, value)
func SetBytesOptions(json []byte, path string, value interface{},
opts *Options) ([]byte, error) {
var optimistic, inplace bool
if opts != nil {
optimistic = opts.Optimistic
inplace = opts.ReplaceInPlace
}
jstr := *(*string)(unsafe.Pointer(&json))
var res []byte
var err error
switch v := value.(type) {
default:
b, merr := jsongo.Marshal(value)
if merr != nil {
return nil, merr
}
raw := *(*string)(unsafe.Pointer(&b))
res, err = set(jstr, path, raw, false, false, optimistic, inplace)
case dtype:
res, err = set(jstr, path, "", false, true, optimistic, inplace)
case string:
res, err = set(jstr, path, v, true, false, optimistic, inplace)
case []byte:
raw := *(*string)(unsafe.Pointer(&v))
res, err = set(jstr, path, raw, true, false, optimistic, inplace)
case bool:
if v {
res, err = set(jstr, path, "true", false, false, optimistic, inplace)
} else {
res, err = set(jstr, path, "false", false, false, optimistic, inplace)
}
case int8:
res, err = set(jstr, path, strconv.FormatInt(int64(v), 10),
false, false, optimistic, inplace)
case int16:
res, err = set(jstr, path, strconv.FormatInt(int64(v), 10),
false, false, optimistic, inplace)
case int32:
res, err = set(jstr, path, strconv.FormatInt(int64(v), 10),
false, false, optimistic, inplace)
case int64:
res, err = set(jstr, path, strconv.FormatInt(int64(v), 10),
false, false, optimistic, inplace)
case uint8:
res, err = set(jstr, path, strconv.FormatUint(uint64(v), 10),
false, false, optimistic, inplace)
case uint16:
res, err = set(jstr, path, strconv.FormatUint(uint64(v), 10),
false, false, optimistic, inplace)
case uint32:
res, err = set(jstr, path, strconv.FormatUint(uint64(v), 10),
false, false, optimistic, inplace)
case uint64:
res, err = set(jstr, path, strconv.FormatUint(uint64(v), 10),
false, false, optimistic, inplace)
case float32:
res, err = set(jstr, path, strconv.FormatFloat(float64(v), 'f', -1, 64),
false, false, optimistic, inplace)
case float64:
res, err = set(jstr, path, strconv.FormatFloat(float64(v), 'f', -1, 64),
false, false, optimistic, inplace)
}
if err == errNoChange {
return json, nil
}
return res, err
}
// SetRawBytesOptions sets a raw json value for the specified path with options.
// If working with bytes, this method preferred over
// SetRawOptions(string(data), path, value, opts)
func SetRawBytesOptions(json []byte, path string, value []byte,
opts *Options) ([]byte, error) {
jstr := *(*string)(unsafe.Pointer(&json))
vstr := *(*string)(unsafe.Pointer(&value))
var optimistic, inplace bool
if opts != nil {
optimistic = opts.Optimistic
inplace = opts.ReplaceInPlace
}
res, err := set(jstr, path, vstr, false, false, optimistic, inplace)
if err == errNoChange {
return json, nil
}
return res, err
}

373
vendor/go.mau.fi/util/LICENSE vendored Normal file
View File

@@ -0,0 +1,373 @@
Mozilla Public License Version 2.0
==================================
1. Definitions
--------------
1.1. "Contributor"
means each individual or legal entity that creates, contributes to
the creation of, or owns Covered Software.
1.2. "Contributor Version"
means the combination of the Contributions of others (if any) used
by a Contributor and that particular Contributor's Contribution.
1.3. "Contribution"
means Covered Software of a particular Contributor.
1.4. "Covered Software"
means Source Code Form to which the initial Contributor has attached
the notice in Exhibit A, the Executable Form of such Source Code
Form, and Modifications of such Source Code Form, in each case
including portions thereof.
1.5. "Incompatible With Secondary Licenses"
means
(a) that the initial Contributor has attached the notice described
in Exhibit B to the Covered Software; or
(b) that the Covered Software was made available under the terms of
version 1.1 or earlier of the License, but not also under the
terms of a Secondary License.
1.6. "Executable Form"
means any form of the work other than Source Code Form.
1.7. "Larger Work"
means a work that combines Covered Software with other material, in
a separate file or files, that is not Covered Software.
1.8. "License"
means this document.
1.9. "Licensable"
means having the right to grant, to the maximum extent possible,
whether at the time of the initial grant or subsequently, any and
all of the rights conveyed by this License.
1.10. "Modifications"
means any of the following:
(a) any file in Source Code Form that results from an addition to,
deletion from, or modification of the contents of Covered
Software; or
(b) any new file in Source Code Form that contains any Covered
Software.
1.11. "Patent Claims" of a Contributor
means any patent claim(s), including without limitation, method,
process, and apparatus claims, in any patent Licensable by such
Contributor that would be infringed, but for the grant of the
License, by the making, using, selling, offering for sale, having
made, import, or transfer of either its Contributions or its
Contributor Version.
1.12. "Secondary License"
means either the GNU General Public License, Version 2.0, the GNU
Lesser General Public License, Version 2.1, the GNU Affero General
Public License, Version 3.0, or any later versions of those
licenses.
1.13. "Source Code Form"
means the form of the work preferred for making modifications.
1.14. "You" (or "Your")
means an individual or a legal entity exercising rights under this
License. For legal entities, "You" includes any entity that
controls, is controlled by, or is under common control with You. For
purposes of this definition, "control" means (a) the power, direct
or indirect, to cause the direction or management of such entity,
whether by contract or otherwise, or (b) ownership of more than
fifty percent (50%) of the outstanding shares or beneficial
ownership of such entity.
2. License Grants and Conditions
--------------------------------
2.1. Grants
Each Contributor hereby grants You a world-wide, royalty-free,
non-exclusive license:
(a) under intellectual property rights (other than patent or trademark)
Licensable by such Contributor to use, reproduce, make available,
modify, display, perform, distribute, and otherwise exploit its
Contributions, either on an unmodified basis, with Modifications, or
as part of a Larger Work; and
(b) under Patent Claims of such Contributor to make, use, sell, offer
for sale, have made, import, and otherwise transfer either its
Contributions or its Contributor Version.
2.2. Effective Date
The licenses granted in Section 2.1 with respect to any Contribution
become effective for each Contribution on the date the Contributor first
distributes such Contribution.
2.3. Limitations on Grant Scope
The licenses granted in this Section 2 are the only rights granted under
this License. No additional rights or licenses will be implied from the
distribution or licensing of Covered Software under this License.
Notwithstanding Section 2.1(b) above, no patent license is granted by a
Contributor:
(a) for any code that a Contributor has removed from Covered Software;
or
(b) for infringements caused by: (i) Your and any other third party's
modifications of Covered Software, or (ii) the combination of its
Contributions with other software (except as part of its Contributor
Version); or
(c) under Patent Claims infringed by Covered Software in the absence of
its Contributions.
This License does not grant any rights in the trademarks, service marks,
or logos of any Contributor (except as may be necessary to comply with
the notice requirements in Section 3.4).
2.4. Subsequent Licenses
No Contributor makes additional grants as a result of Your choice to
distribute the Covered Software under a subsequent version of this
License (see Section 10.2) or under the terms of a Secondary License (if
permitted under the terms of Section 3.3).
2.5. Representation
Each Contributor represents that the Contributor believes its
Contributions are its original creation(s) or it has sufficient rights
to grant the rights to its Contributions conveyed by this License.
2.6. Fair Use
This License is not intended to limit any rights You have under
applicable copyright doctrines of fair use, fair dealing, or other
equivalents.
2.7. Conditions
Sections 3.1, 3.2, 3.3, and 3.4 are conditions of the licenses granted
in Section 2.1.
3. Responsibilities
-------------------
3.1. Distribution of Source Form
All distribution of Covered Software in Source Code Form, including any
Modifications that You create or to which You contribute, must be under
the terms of this License. You must inform recipients that the Source
Code Form of the Covered Software is governed by the terms of this
License, and how they can obtain a copy of this License. You may not
attempt to alter or restrict the recipients' rights in the Source Code
Form.
3.2. Distribution of Executable Form
If You distribute Covered Software in Executable Form then:
(a) such Covered Software must also be made available in Source Code
Form, as described in Section 3.1, and You must inform recipients of
the Executable Form how they can obtain a copy of such Source Code
Form by reasonable means in a timely manner, at a charge no more
than the cost of distribution to the recipient; and
(b) You may distribute such Executable Form under the terms of this
License, or sublicense it under different terms, provided that the
license for the Executable Form does not attempt to limit or alter
the recipients' rights in the Source Code Form under this License.
3.3. Distribution of a Larger Work
You may create and distribute a Larger Work under terms of Your choice,
provided that You also comply with the requirements of this License for
the Covered Software. If the Larger Work is a combination of Covered
Software with a work governed by one or more Secondary Licenses, and the
Covered Software is not Incompatible With Secondary Licenses, this
License permits You to additionally distribute such Covered Software
under the terms of such Secondary License(s), so that the recipient of
the Larger Work may, at their option, further distribute the Covered
Software under the terms of either this License or such Secondary
License(s).
3.4. Notices
You may not remove or alter the substance of any license notices
(including copyright notices, patent notices, disclaimers of warranty,
or limitations of liability) contained within the Source Code Form of
the Covered Software, except that You may alter any license notices to
the extent required to remedy known factual inaccuracies.
3.5. Application of Additional Terms
You may choose to offer, and to charge a fee for, warranty, support,
indemnity or liability obligations to one or more recipients of Covered
Software. However, You may do so only on Your own behalf, and not on
behalf of any Contributor. You must make it absolutely clear that any
such warranty, support, indemnity, or liability obligation is offered by
You alone, and You hereby agree to indemnify every Contributor for any
liability incurred by such Contributor as a result of warranty, support,
indemnity or liability terms You offer. You may include additional
disclaimers of warranty and limitations of liability specific to any
jurisdiction.
4. Inability to Comply Due to Statute or Regulation
---------------------------------------------------
If it is impossible for You to comply with any of the terms of this
License with respect to some or all of the Covered Software due to
statute, judicial order, or regulation then You must: (a) comply with
the terms of this License to the maximum extent possible; and (b)
describe the limitations and the code they affect. Such description must
be placed in a text file included with all distributions of the Covered
Software under this License. Except to the extent prohibited by statute
or regulation, such description must be sufficiently detailed for a
recipient of ordinary skill to be able to understand it.
5. Termination
--------------
5.1. The rights granted under this License will terminate automatically
if You fail to comply with any of its terms. However, if You become
compliant, then the rights granted under this License from a particular
Contributor are reinstated (a) provisionally, unless and until such
Contributor explicitly and finally terminates Your grants, and (b) on an
ongoing basis, if such Contributor fails to notify You of the
non-compliance by some reasonable means prior to 60 days after You have
come back into compliance. Moreover, Your grants from a particular
Contributor are reinstated on an ongoing basis if such Contributor
notifies You of the non-compliance by some reasonable means, this is the
first time You have received notice of non-compliance with this License
from such Contributor, and You become compliant prior to 30 days after
Your receipt of the notice.
5.2. If You initiate litigation against any entity by asserting a patent
infringement claim (excluding declaratory judgment actions,
counter-claims, and cross-claims) alleging that a Contributor Version
directly or indirectly infringes any patent, then the rights granted to
You by any and all Contributors for the Covered Software under Section
2.1 of this License shall terminate.
5.3. In the event of termination under Sections 5.1 or 5.2 above, all
end user license agreements (excluding distributors and resellers) which
have been validly granted by You or Your distributors under this License
prior to termination shall survive termination.
************************************************************************
* *
* 6. Disclaimer of Warranty *
* ------------------------- *
* *
* Covered Software is provided under this License on an "as is" *
* basis, without warranty of any kind, either expressed, implied, or *
* statutory, including, without limitation, warranties that the *
* Covered Software is free of defects, merchantable, fit for a *
* particular purpose or non-infringing. The entire risk as to the *
* quality and performance of the Covered Software is with You. *
* Should any Covered Software prove defective in any respect, You *
* (not any Contributor) assume the cost of any necessary servicing, *
* repair, or correction. This disclaimer of warranty constitutes an *
* essential part of this License. No use of any Covered Software is *
* authorized under this License except under this disclaimer. *
* *
************************************************************************
************************************************************************
* *
* 7. Limitation of Liability *
* -------------------------- *
* *
* Under no circumstances and under no legal theory, whether tort *
* (including negligence), contract, or otherwise, shall any *
* Contributor, or anyone who distributes Covered Software as *
* permitted above, be liable to You for any direct, indirect, *
* special, incidental, or consequential damages of any character *
* including, without limitation, damages for lost profits, loss of *
* goodwill, work stoppage, computer failure or malfunction, or any *
* and all other commercial damages or losses, even if such party *
* shall have been informed of the possibility of such damages. This *
* limitation of liability shall not apply to liability for death or *
* personal injury resulting from such party's negligence to the *
* extent applicable law prohibits such limitation. Some *
* jurisdictions do not allow the exclusion or limitation of *
* incidental or consequential damages, so this exclusion and *
* limitation may not apply to You. *
* *
************************************************************************
8. Litigation
-------------
Any litigation relating to this License may be brought only in the
courts of a jurisdiction where the defendant maintains its principal
place of business and such litigation shall be governed by laws of that
jurisdiction, without reference to its conflict-of-law provisions.
Nothing in this Section shall prevent a party's ability to bring
cross-claims or counter-claims.
9. Miscellaneous
----------------
This License represents the complete agreement concerning the subject
matter hereof. If any provision of this License is held to be
unenforceable, such provision shall be reformed only to the extent
necessary to make it enforceable. Any law or regulation which provides
that the language of a contract shall be construed against the drafter
shall not be used to construe this License against a Contributor.
10. Versions of the License
---------------------------
10.1. New Versions
Mozilla Foundation is the license steward. Except as provided in Section
10.3, no one other than the license steward has the right to modify or
publish new versions of this License. Each version will be given a
distinguishing version number.
10.2. Effect of New Versions
You may distribute the Covered Software under the terms of the version
of the License under which You originally received the Covered Software,
or under the terms of any subsequent version published by the license
steward.
10.3. Modified Versions
If you create software not governed by this License, and you want to
create a new license for such software, you may create and use a
modified version of this License if you rename the license and remove
any references to the name of the license steward (except to note that
such modified license differs from this License).
10.4. Distributing Source Code Form that is Incompatible With Secondary
Licenses
If You choose to distribute Source Code Form that is Incompatible With
Secondary Licenses under the terms of this version of the License, the
notice described in Exhibit B of this License must be attached.
Exhibit A - Source Code Form License Notice
-------------------------------------------
This Source Code Form is subject to the terms of the Mozilla Public
License, v. 2.0. If a copy of the MPL was not distributed with this
file, You can obtain one at http://mozilla.org/MPL/2.0/.
If it is not possible or desirable to put the notice in a particular
file, then You may include the notice in a location (such as a LICENSE
file in a relevant directory) where a recipient would be likely to look
for such a notice.
You may add additional accurate notices of copyright ownership.
Exhibit B - "Incompatible With Secondary Licenses" Notice
---------------------------------------------------------
This Source Code Form is "Incompatible With Secondary Licenses", as
defined by the Mozilla Public License, v. 2.0.

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base58
==========
This is a copy of <https://github.com/btcsuite/btcd/tree/master/btcutil/base58>.
## License
Package base58 is licensed under the [copyfree](http://copyfree.org) ISC
License.

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// Copyright (c) 2015 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
// AUTOGENERATED by genalphabet.go; do not edit.
package base58
const (
// alphabet is the modified base58 alphabet used by Bitcoin.
alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
alphabetIdx0 = '1'
)
var b58 = [256]byte{
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 0, 1, 2, 3, 4, 5, 6,
7, 8, 255, 255, 255, 255, 255, 255,
255, 9, 10, 11, 12, 13, 14, 15,
16, 255, 17, 18, 19, 20, 21, 255,
22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32, 255, 255, 255, 255, 255,
255, 33, 34, 35, 36, 37, 38, 39,
40, 41, 42, 43, 255, 44, 45, 46,
47, 48, 49, 50, 51, 52, 53, 54,
55, 56, 57, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 255, 255,
}

142
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// Copyright (c) 2013-2015 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package base58
import (
"math/big"
)
//go:generate go run genalphabet.go
var bigRadix = [...]*big.Int{
big.NewInt(0),
big.NewInt(58),
big.NewInt(58 * 58),
big.NewInt(58 * 58 * 58),
big.NewInt(58 * 58 * 58 * 58),
big.NewInt(58 * 58 * 58 * 58 * 58),
big.NewInt(58 * 58 * 58 * 58 * 58 * 58),
big.NewInt(58 * 58 * 58 * 58 * 58 * 58 * 58),
big.NewInt(58 * 58 * 58 * 58 * 58 * 58 * 58 * 58),
big.NewInt(58 * 58 * 58 * 58 * 58 * 58 * 58 * 58 * 58),
bigRadix10,
}
var bigRadix10 = big.NewInt(58 * 58 * 58 * 58 * 58 * 58 * 58 * 58 * 58 * 58) // 58^10
// Decode decodes a modified base58 string to a byte slice.
func Decode(b string) []byte {
answer := big.NewInt(0)
scratch := new(big.Int)
// Calculating with big.Int is slow for each iteration.
// x += b58[b[i]] * j
// j *= 58
//
// Instead we can try to do as much calculations on int64.
// We can represent a 10 digit base58 number using an int64.
//
// Hence we'll try to convert 10, base58 digits at a time.
// The rough idea is to calculate `t`, such that:
//
// t := b58[b[i+9]] * 58^9 ... + b58[b[i+1]] * 58^1 + b58[b[i]] * 58^0
// x *= 58^10
// x += t
//
// Of course, in addition, we'll need to handle boundary condition when `b` is not multiple of 58^10.
// In that case we'll use the bigRadix[n] lookup for the appropriate power.
for t := b; len(t) > 0; {
n := len(t)
if n > 10 {
n = 10
}
total := uint64(0)
for _, v := range t[:n] {
if v > 255 {
return []byte("")
}
tmp := b58[v]
if tmp == 255 {
return []byte("")
}
total = total*58 + uint64(tmp)
}
answer.Mul(answer, bigRadix[n])
scratch.SetUint64(total)
answer.Add(answer, scratch)
t = t[n:]
}
tmpval := answer.Bytes()
var numZeros int
for numZeros = 0; numZeros < len(b); numZeros++ {
if b[numZeros] != alphabetIdx0 {
break
}
}
flen := numZeros + len(tmpval)
val := make([]byte, flen)
copy(val[numZeros:], tmpval)
return val
}
// Encode encodes a byte slice to a modified base58 string.
func Encode(b []byte) string {
x := new(big.Int)
x.SetBytes(b)
// maximum length of output is log58(2^(8*len(b))) == len(b) * 8 / log(58)
maxlen := int(float64(len(b))*1.365658237309761) + 1
answer := make([]byte, 0, maxlen)
mod := new(big.Int)
for x.Sign() > 0 {
// Calculating with big.Int is slow for each iteration.
// x, mod = x / 58, x % 58
//
// Instead we can try to do as much calculations on int64.
// x, mod = x / 58^10, x % 58^10
//
// Which will give us mod, which is 10 digit base58 number.
// We'll loop that 10 times to convert to the answer.
x.DivMod(x, bigRadix10, mod)
if x.Sign() == 0 {
// When x = 0, we need to ensure we don't add any extra zeros.
m := mod.Int64()
for m > 0 {
answer = append(answer, alphabet[m%58])
m /= 58
}
} else {
m := mod.Int64()
for i := 0; i < 10; i++ {
answer = append(answer, alphabet[m%58])
m /= 58
}
}
}
// leading zero bytes
for _, i := range b {
if i != 0 {
break
}
answer = append(answer, alphabetIdx0)
}
// reverse
alen := len(answer)
for i := 0; i < alen/2; i++ {
answer[i], answer[alen-1-i] = answer[alen-1-i], answer[i]
}
return string(answer)
}

52
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// Copyright (c) 2013-2014 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
package base58
import (
"crypto/sha256"
"errors"
)
// ErrChecksum indicates that the checksum of a check-encoded string does not verify against
// the checksum.
var ErrChecksum = errors.New("checksum error")
// ErrInvalidFormat indicates that the check-encoded string has an invalid format.
var ErrInvalidFormat = errors.New("invalid format: version and/or checksum bytes missing")
// checksum: first four bytes of sha256^2
func checksum(input []byte) (cksum [4]byte) {
h := sha256.Sum256(input)
h2 := sha256.Sum256(h[:])
copy(cksum[:], h2[:4])
return
}
// CheckEncode prepends a version byte and appends a four byte checksum.
func CheckEncode(input []byte, version byte) string {
b := make([]byte, 0, 1+len(input)+4)
b = append(b, version)
b = append(b, input...)
cksum := checksum(b)
b = append(b, cksum[:]...)
return Encode(b)
}
// CheckDecode decodes a string that was encoded with CheckEncode and verifies the checksum.
func CheckDecode(input string) (result []byte, version byte, err error) {
decoded := Decode(input)
if len(decoded) < 5 {
return nil, 0, ErrInvalidFormat
}
version = decoded[0]
var cksum [4]byte
copy(cksum[:], decoded[len(decoded)-4:])
if checksum(decoded[:len(decoded)-4]) != cksum {
return nil, 0, ErrChecksum
}
payload := decoded[1 : len(decoded)-4]
result = append(result, payload...)
return
}

29
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// Copyright (c) 2014 The btcsuite developers
// Use of this source code is governed by an ISC
// license that can be found in the LICENSE file.
/*
Package base58 provides an API for working with modified base58 and Base58Check
encodings.
# Modified Base58 Encoding
Standard base58 encoding is similar to standard base64 encoding except, as the
name implies, it uses a 58 character alphabet which results in an alphanumeric
string and allows some characters which are problematic for humans to be
excluded. Due to this, there can be various base58 alphabets.
The modified base58 alphabet used by Bitcoin, and hence this package, omits the
0, O, I, and l characters that look the same in many fonts and are therefore
hard to humans to distinguish.
# Base58Check Encoding Scheme
The Base58Check encoding scheme is primarily used for Bitcoin addresses at the
time of this writing, however it can be used to generically encode arbitrary
byte arrays into human-readable strings along with a version byte that can be
used to differentiate the same payload. For Bitcoin addresses, the extra
version is used to differentiate the network of otherwise identical public keys
which helps prevent using an address intended for one network on another.
*/
package base58

20
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// Copyright (c) 2025 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exbytes
import (
"unsafe"
)
// UnsafeString returns a string that points to the same memory as the input byte slice.
//
// The input byte slice must not be modified after this function is called.
//
// See [go.mau.fi/util/exstrings.UnsafeBytes] for the reverse operation.
func UnsafeString(b []byte) string {
return unsafe.String(unsafe.SliceData(b), len(b))
}

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// Copyright (c) 2024 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exbytes
import (
"errors"
"fmt"
"io"
)
// Writer is a simple byte writer that does not allow extending the buffer.
//
// Writes always go after the current len() and will fail if the slice capacity is too low.
//
// The correct way to use this is to create a slice with sufficient capacity and zero length:
//
// x := make([]byte, 0, 11)
// w := (*Writer)(&x)
// w.Write([]byte("hello"))
// w.WriteByte(' ')
// w.WriteString("world")
// fmt.Println(string(x)) // "hello world"
type Writer []byte
var ErrWriterBufferFull = errors.New("exbytes.Writer: buffer full")
var (
_ io.Writer = (*Writer)(nil)
_ io.StringWriter = (*Writer)(nil)
_ io.ByteWriter = (*Writer)(nil)
)
func (w *Writer) extendLen(n int) (int, error) {
ptr := len(*w)
if ptr+n > cap(*w) {
return 0, fmt.Errorf("%w (%d + %d > %d)", ErrWriterBufferFull, ptr, n, cap(*w))
}
*w = (*w)[:ptr+n]
return ptr, nil
}
func (w *Writer) Write(b []byte) (n int, err error) {
ptr, err := w.extendLen(len(b))
if err != nil {
return 0, err
}
copy((*w)[ptr:], b)
return len(b), nil
}
func (w *Writer) WriteString(s string) (n int, err error) {
ptr, err := w.extendLen(len(s))
if err != nil {
return 0, err
}
copy((*w)[ptr:], s)
return len(s), nil
}
func (w *Writer) WriteByte(r byte) error {
ptr, err := w.extendLen(1)
if err != nil {
return err
}
(*w)[ptr] = r
return nil
}
func (w *Writer) String() string {
if w == nil {
return "<nil>"
}
return string(*w)
}

33
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// Copyright (c) 2022 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exerrors
import (
"errors"
"fmt"
)
type DualError struct {
High error
Low error
}
func NewDualError(high, low error) DualError {
return DualError{high, low}
}
func (err DualError) Is(other error) bool {
return errors.Is(other, err.High) || errors.Is(other, err.Low)
}
func (err DualError) Unwrap() error {
return err.Low
}
func (err DualError) Error() string {
return fmt.Sprintf("%v: %v", err.High, err.Low)
}

23
vendor/go.mau.fi/util/exerrors/must.go vendored Normal file
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// Copyright (c) 2024 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exerrors
func Must[T any](val T, err error) T {
PanicIfNotNil(err)
return val
}
func Must2[T any, T2 any](val T, val2 T2, err error) (T, T2) {
PanicIfNotNil(err)
return val, val2
}
func PanicIfNotNil(err error) {
if err != nil {
panic(err)
}
}

33
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// Copyright (c) 2022 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exgjson
import (
"strings"
)
// Escaper escapes a string for use in a GJSON path.
var Escaper = strings.NewReplacer(
`\`, `\\`,
".", `\.`,
"|", `\|`,
"#", `\#`,
"@", `\@`,
"*", `\*`,
"?", `\?`)
// Path returns a GJSON path pointing at a nested object, with each provided string being a key.
func Path(path ...string) string {
var result strings.Builder
for i, part := range path {
_, _ = Escaper.WriteString(&result, part)
if i < len(path)-1 {
result.WriteRune('.')
}
}
return result.String()
}

32
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// Copyright (c) 2024 Sumner Evans
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exhttp
import "net/http"
func AddCORSHeaders(w http.ResponseWriter) {
// Recommended CORS headers can be found in https://spec.matrix.org/v1.3/client-server-api/#web-browser-clients
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS")
w.Header().Set("Access-Control-Allow-Headers", "X-Requested-With, Content-Type, Authorization")
w.Header().Set("Content-Security-Policy", "sandbox; default-src 'none'; script-src 'none'; plugin-types application/pdf; style-src 'unsafe-inline'; object-src 'self';")
// Allow browsers to cache above for 1 day
w.Header().Set("Access-Control-Max-Age", "86400")
}
// CORSMiddleware adds CORS headers to the response and handles OPTIONS
// requests by returning 200 OK immediately.
func CORSMiddleware(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
AddCORSHeaders(w)
if r.Method == http.MethodOptions {
w.WriteHeader(http.StatusOK)
return
}
next.ServeHTTP(w, r)
})
}

98
vendor/go.mau.fi/util/exhttp/handleerrors.go vendored Normal file
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// Copyright (c) 2024 Sumner Evans
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exhttp
import (
"bufio"
"encoding/json"
"fmt"
"net"
"net/http"
)
type ErrorBodies struct {
NotFound json.RawMessage
MethodNotAllowed json.RawMessage
}
func HandleErrors(gen ErrorBodies) func(http.Handler) http.Handler {
return func(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
next.ServeHTTP(&bodyOverrider{
ResponseWriter: w,
statusNotFoundBody: gen.NotFound,
statusMethodNotAllowedBody: gen.MethodNotAllowed,
}, r)
})
}
}
type bodyOverrider struct {
http.ResponseWriter
code int
override bool
written bool
hijacked bool
statusNotFoundBody json.RawMessage
statusMethodNotAllowedBody json.RawMessage
}
var (
_ http.ResponseWriter = (*bodyOverrider)(nil)
_ http.Flusher = (*bodyOverrider)(nil)
_ http.Hijacker = (*bodyOverrider)(nil)
)
func (b *bodyOverrider) WriteHeader(code int) {
if !b.hijacked &&
b.Header().Get("Content-Type") == "text/plain; charset=utf-8" &&
(code == http.StatusNotFound || code == http.StatusMethodNotAllowed) {
b.Header().Set("Content-Type", "application/json")
b.override = true
}
b.code = code
b.ResponseWriter.WriteHeader(code)
}
func (b *bodyOverrider) Write(body []byte) (n int, err error) {
if b.override {
n = len(body)
if !b.written {
switch b.code {
case http.StatusNotFound:
_, err = b.ResponseWriter.Write(b.statusNotFoundBody)
case http.StatusMethodNotAllowed:
_, err = b.ResponseWriter.Write(b.statusMethodNotAllowedBody)
}
}
b.written = true
return
}
return b.ResponseWriter.Write(body)
}
func (b *bodyOverrider) Hijack() (net.Conn, *bufio.ReadWriter, error) {
hijacker, ok := b.ResponseWriter.(http.Hijacker)
if !ok {
return nil, nil, fmt.Errorf("HandleErrors: %T does not implement http.Hijacker", b.ResponseWriter)
}
b.hijacked = true
return hijacker.Hijack()
}
func (b *bodyOverrider) Flush() {
flusher, ok := b.ResponseWriter.(http.Flusher)
if ok {
flusher.Flush()
}
}

36
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// Copyright (c) 2024 Sumner Evans
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exhttp
import (
"encoding/json"
"net/http"
)
var AutoAllowCORS = true
func WriteJSONResponse(w http.ResponseWriter, httpStatusCode int, jsonData any) {
if AutoAllowCORS {
AddCORSHeaders(w)
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(httpStatusCode)
_ = json.NewEncoder(w).Encode(jsonData)
}
func WriteJSONData(w http.ResponseWriter, httpStatusCode int, data []byte) {
if AutoAllowCORS {
AddCORSHeaders(w)
}
w.Header().Set("Content-Type", "application/json")
w.WriteHeader(httpStatusCode)
_, _ = w.Write(data)
}
func WriteEmptyJSONResponse(w http.ResponseWriter, httpStatusCode int) {
WriteJSONData(w, httpStatusCode, []byte("{}"))
}

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// Copyright (c) 2024 Sumner Evans
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exhttp
import "net/http"
// Middleware represents a middleware that can be applied to an [http.Handler].
type Middleware func(http.Handler) http.Handler
// ApplyMiddleware applies the provided [Middleware] functions to the given
// router. The middlewares will be applied in the order they are provided.
func ApplyMiddleware(router http.Handler, middlewares ...Middleware) http.Handler {
// Apply middlewares in reverse order because the first middleware provided
// needs to be the outermost one.
for i := len(middlewares) - 1; i >= 0; i-- {
router = middlewares[i](router)
}
return router
}
// StripPrefix is a wrapper for [http.StripPrefix] is compatible with the middleware pattern.
func StripPrefix(prefix string) Middleware {
return func(next http.Handler) http.Handler {
return http.StripPrefix(prefix, next)
}
}

38
vendor/go.mau.fi/util/exhttp/networkerror.go vendored Normal file
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// Copyright (c) 2025 Toni Spets
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exhttp
import (
"errors"
"net"
"syscall"
"golang.org/x/net/http2"
)
func IsNetworkError(err error) bool {
if errno := syscall.Errno(0); errors.As(err, &errno) {
// common errnos for network related operations
return errno == syscall.ENETDOWN ||
errno == syscall.ENETUNREACH ||
errno == syscall.ENETRESET ||
errno == syscall.ECONNABORTED ||
errno == syscall.ECONNRESET ||
errno == syscall.ENOBUFS ||
errno == syscall.ETIMEDOUT ||
errno == syscall.ECONNREFUSED ||
errno == syscall.EHOSTDOWN ||
errno == syscall.EHOSTUNREACH ||
errno == syscall.EPIPE
} else if netError := net.Error(nil); errors.As(err, &netError) {
return true
} else if errors.As(err, &http2.StreamError{}) {
return true
}
return false
}

19
vendor/go.mau.fi/util/exmaps/clone.go vendored Normal file
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// Copyright (c) 2025 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package exmaps
import (
"maps"
)
// NonNilClone returns a copy of the given map, or an empty map if the input is nil.
func NonNilClone[Key comparable, Value any](m map[Key]Value) map[Key]Value {
if m == nil {
return make(map[Key]Value)
}
return maps.Clone(m)
}

100
vendor/go.mau.fi/util/glob/glob.go vendored Normal file
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// Package glob implements very simple glob pattern matching used in various parts of the Matrix spec,
// such as push rules and moderation policy lists.
//
// See https://spec.matrix.org/v1.11/appendices/#glob-style-matching for more info.
package glob
import (
"strings"
)
type Glob interface {
Match(string) bool
}
var (
_ Glob = ExactGlob("")
_ Glob = PrefixGlob("")
_ Glob = SuffixGlob("")
_ Glob = ContainsGlob("")
_ Glob = (*PrefixAndSuffixGlob)(nil)
_ Glob = (*PrefixSuffixAndContainsGlob)(nil)
_ Glob = (*RegexGlob)(nil)
)
// Compile compiles a glob pattern into an object that can be used to efficiently match strings against the pattern.
//
// Simple globs will be converted into prefix/suffix/contains checks, while complicated ones will be compiled as regex.
func Compile(pattern string) Glob {
pattern = Simplify(pattern)
g := compileSimple(pattern)
if g != nil {
return g
}
g, _ = CompileRegex(pattern)
return g
}
// CompileWithImplicitContains is a wrapper for Compile which will replace exact matches with contains matches.
// i.e. if the pattern has no wildcards, it will be treated as if it was surrounded in asterisks (`foo` -> `*foo*`).
func CompileWithImplicitContains(pattern string) Glob {
g := Compile(pattern)
if _, isExact := g.(ExactGlob); isExact {
return ContainsGlob(pattern)
}
return g
}
// CompileSimple compiles a glob pattern into one of the non-regex forms.
//
// If the pattern can't be compiled into a simple form, it returns nil.
func CompileSimple(pattern string) Glob {
return compileSimple(Simplify(pattern))
}
func compileSimple(pattern string) Glob {
if strings.ContainsRune(pattern, '?') {
return nil
}
switch strings.Count(pattern, "*") {
case 0:
return ExactGlob(pattern)
case 1:
if strings.HasPrefix(pattern, "*") {
return SuffixGlob(pattern[1:])
} else if strings.HasSuffix(pattern, "*") {
return PrefixGlob(pattern[:len(pattern)-1])
} else {
parts := strings.Split(pattern, "*")
return PrefixAndSuffixGlob{
Prefix: parts[0],
Suffix: parts[1],
}
}
case 2:
if strings.HasPrefix(pattern, "*") && strings.HasSuffix(pattern, "*") {
return ContainsGlob(pattern[1 : len(pattern)-1])
}
parts := strings.Split(pattern, "*")
return PrefixSuffixAndContainsGlob{
Prefix: parts[0],
Contains: parts[1],
Suffix: parts[2],
}
default:
return nil
}
}
var sqlCompiler = strings.NewReplacer(
`\`, `\\`,
`%`, `\%`,
`_`, `\_`,
`*`, `%`,
`?`, `_`,
)
// ToSQL converts a Matrix glob pattern to a SQL LIKE pattern.
func ToSQL(pattern string) string {
return sqlCompiler.Replace(Simplify(pattern))
}

77
vendor/go.mau.fi/util/glob/regex.go vendored Normal file
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package glob
import (
"fmt"
"io"
"regexp"
"strings"
)
type RegexGlob struct {
regex *regexp.Regexp
}
func (rg *RegexGlob) Match(s string) bool {
return rg.regex.MatchString(s)
}
type swWriter interface {
io.StringWriter
io.Writer
}
// ToRegexPattern converts a glob pattern to a regex pattern and writes it to the given buffer.
//
// Only errors returned by the Write calls are returned by this function
// (so if a non-erroring writer is used, this function will always return nil).
func ToRegexPattern(pattern string, buf swWriter) error {
for _, part := range SplitPattern(pattern) {
if strings.ContainsRune(part, '*') || strings.ContainsRune(part, '?') {
questions := strings.Count(part, "?")
star := strings.ContainsRune(part, '*')
if star {
if questions > 0 {
_, err := fmt.Fprintf(buf, ".{%d,}", questions)
if err != nil {
return err
}
} else {
_, err := buf.WriteString(".*")
if err != nil {
return err
}
}
} else if questions > 0 {
_, err := fmt.Fprintf(buf, ".{%d}", questions)
if err != nil {
return err
}
}
} else {
_, err := buf.WriteString(regexp.QuoteMeta(part))
if err != nil {
return err
}
}
}
return nil
}
// CompileRegex compiles the given glob pattern into a regex pattern.
//
// If you want the raw regex string, use [ToRegexPattern] instead
func CompileRegex(pattern string) (*RegexGlob, error) {
var buf strings.Builder
buf.WriteRune('^')
err := ToRegexPattern(pattern, &buf)
if err != nil {
// This will never actually happen
return nil, err
}
buf.WriteRune('$')
regex, err := regexp.Compile(buf.String())
if err != nil {
return nil, err
}
return &RegexGlob{regex}, nil
}

62
vendor/go.mau.fi/util/glob/simple.go vendored Normal file
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package glob
import (
"strings"
)
// ExactGlob is the result of [Compile] when the pattern contains no glob characters.
// It uses a simple string comparison to match.
type ExactGlob string
func (eg ExactGlob) Match(s string) bool {
return string(eg) == s
}
// SuffixGlob is the result of [Compile] when the pattern only has one `*` at the beginning.
// It uses [strings.HasSuffix] to match.
type SuffixGlob string
func (sg SuffixGlob) Match(s string) bool {
return strings.HasSuffix(s, string(sg))
}
// PrefixGlob is the result of [Compile] when the pattern only has one `*` at the end.
// It uses [strings.HasPrefix] to match.
type PrefixGlob string
func (pg PrefixGlob) Match(s string) bool {
return strings.HasPrefix(s, string(pg))
}
// ContainsGlob is the result of [Compile] when the pattern has two `*`s, one at the beginning and one at the end.
// It uses [strings.Contains] to match.
//
// When there are exactly two `*`s, but they're not surrounding the string, the pattern is compiled as a [PrefixSuffixAndContainsGlob] instead.
type ContainsGlob string
func (cg ContainsGlob) Match(s string) bool {
return strings.Contains(s, string(cg))
}
// PrefixAndSuffixGlob is the result of [Compile] when the pattern only has one `*` in the middle.
type PrefixAndSuffixGlob struct {
Prefix string
Suffix string
}
func (psg PrefixAndSuffixGlob) Match(s string) bool {
return strings.HasPrefix(s, psg.Prefix) && strings.HasSuffix(s[len(psg.Prefix):], psg.Suffix)
}
// PrefixSuffixAndContainsGlob is the result of [Compile] when the pattern has two `*`s which are not surrounding the rest of the pattern.
type PrefixSuffixAndContainsGlob struct {
Prefix string
Suffix string
Contains string
}
func (psacg PrefixSuffixAndContainsGlob) Match(s string) bool {
return strings.HasPrefix(s, psacg.Prefix) &&
strings.HasSuffix(s[len(psacg.Prefix):], psacg.Suffix) &&
strings.Contains(s[len(psacg.Prefix):len(s)-len(psacg.Suffix)], psacg.Contains)
}

42
vendor/go.mau.fi/util/glob/util.go vendored Normal file
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package glob
import (
"regexp"
"strings"
)
var redundantStarRegex = regexp.MustCompile(`\*{2,}`)
var maybeRedundantQuestionRegex = regexp.MustCompile(`[*?]{2,}`)
var wildcardRegex = regexp.MustCompile(`[*?]+`)
func SplitPattern(pattern string) []string {
indexes := wildcardRegex.FindAllStringIndex(pattern, -1)
if len(indexes) == 0 {
return []string{pattern}
}
parts := make([]string, 0, len(indexes)+1)
start := 0
for _, part := range indexes {
end := part[0]
if end > start {
parts = append(parts, pattern[start:end])
}
parts = append(parts, pattern[part[0]:part[1]])
start = part[1]
}
if start < len(pattern) {
parts = append(parts, pattern[start:])
}
return parts
}
func Simplify(pattern string) string {
pattern = redundantStarRegex.ReplaceAllString(pattern, "*")
pattern = maybeRedundantQuestionRegex.ReplaceAllStringFunc(pattern, func(s string) string {
if !strings.ContainsRune(s, '*') {
return s
}
return strings.Repeat("?", strings.Count(s, "?")) + "*"
})
return pattern
}

48
vendor/go.mau.fi/util/jsonbytes/unpadded.go vendored Normal file
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// Copyright (c) 2024 Sumner Evans
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package jsonbytes
import (
"encoding/base64"
"encoding/json"
)
// UnpaddedBytes is a byte slice that is encoded and decoded using
// [base64.RawStdEncoding] instead of the default padded base64.
type UnpaddedBytes []byte
func (b UnpaddedBytes) MarshalJSON() ([]byte, error) {
return json.Marshal(base64.RawStdEncoding.EncodeToString(b))
}
func (b *UnpaddedBytes) UnmarshalJSON(data []byte) error {
var b64str string
err := json.Unmarshal(data, &b64str)
if err != nil {
return err
}
*b, err = base64.RawStdEncoding.DecodeString(b64str)
return err
}
// UnpaddedURLBytes is a byte slice that is encoded and decoded using
// [base64.RawURLEncoding] instead of the default padded base64.
type UnpaddedURLBytes []byte
func (b UnpaddedURLBytes) MarshalJSON() ([]byte, error) {
return json.Marshal(base64.RawURLEncoding.EncodeToString(b))
}
func (b *UnpaddedURLBytes) UnmarshalJSON(data []byte) error {
var b64str string
err := json.Unmarshal(data, &b64str)
if err != nil {
return err
}
*b, err = base64.RawURLEncoding.DecodeString(b64str)
return err
}

155
vendor/go.mau.fi/util/jsontime/duration.go vendored Normal file
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// Copyright (c) 2025 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package jsontime
import (
"database/sql/driver"
"strconv"
"time"
)
func unmarshalDuration(into *time.Duration, jsonData []byte, unit time.Duration) error {
val, err := strconv.ParseInt(string(jsonData), 10, 64)
if err != nil {
return err
}
*into = time.Duration(val) * unit
return nil
}
func anyIntegerToDuration(src any, unit time.Duration, into *time.Duration) error {
i64, err := anyIntegerTo64(src)
if err != nil {
return err
}
*into = time.Duration(i64) * unit
return nil
}
type Seconds struct {
time.Duration
}
func S(dur time.Duration) Seconds {
return Seconds{Duration: dur}
}
func SInt(dur int) Seconds {
return Seconds{Duration: time.Duration(dur) * time.Second}
}
func (s Seconds) MarshalJSON() ([]byte, error) {
return []byte(strconv.FormatInt(int64(s.Seconds()), 10)), nil
}
func (s Seconds) Value() (driver.Value, error) {
return int64(s.Seconds()), nil
}
func (s *Seconds) UnmarshalJSON(data []byte) error {
return unmarshalDuration(&s.Duration, data, time.Second)
}
func (s *Seconds) Scan(src interface{}) error {
return anyIntegerToDuration(src, time.Second, &s.Duration)
}
func (s *Seconds) Get() time.Duration {
if s == nil {
return 0
}
return s.Duration
}
type Milliseconds struct {
time.Duration
}
func MS(dur time.Duration) Milliseconds {
return Milliseconds{Duration: dur}
}
func MSInt(dur int64) Milliseconds {
return Milliseconds{Duration: time.Duration(dur) * time.Millisecond}
}
func (s Milliseconds) MarshalJSON() ([]byte, error) {
return []byte(strconv.FormatInt(s.Milliseconds(), 10)), nil
}
func (s Milliseconds) Value() (driver.Value, error) {
return s.Milliseconds(), nil
}
func (s *Milliseconds) UnmarshalJSON(data []byte) error {
return unmarshalDuration(&s.Duration, data, time.Millisecond)
}
func (s *Milliseconds) Scan(src interface{}) error {
return anyIntegerToDuration(src, time.Millisecond, &s.Duration)
}
func (s *Milliseconds) Get() time.Duration {
if s == nil {
return 0
}
return s.Duration
}
type Microseconds struct {
time.Duration
}
func (s Microseconds) MarshalJSON() ([]byte, error) {
return []byte(strconv.FormatInt(s.Microseconds(), 10)), nil
}
func (s Microseconds) Value() (driver.Value, error) {
return s.Microseconds(), nil
}
func (s *Microseconds) UnmarshalJSON(data []byte) error {
return unmarshalDuration(&s.Duration, data, time.Microsecond)
}
func (s *Microseconds) Scan(src interface{}) error {
return anyIntegerToDuration(src, time.Microsecond, &s.Duration)
}
func (s *Microseconds) Get() time.Duration {
if s == nil {
return 0
}
return s.Duration
}
type Nanoseconds struct {
time.Duration
}
func (s Nanoseconds) MarshalJSON() ([]byte, error) {
return []byte(strconv.FormatInt(s.Nanoseconds(), 10)), nil
}
func (s Nanoseconds) Value() (driver.Value, error) {
return s.Nanoseconds(), nil
}
func (s *Nanoseconds) UnmarshalJSON(data []byte) error {
return unmarshalDuration(&s.Duration, data, time.Nanosecond)
}
func (s *Nanoseconds) Scan(src interface{}) error {
return anyIntegerToDuration(src, time.Nanosecond, &s.Duration)
}
func (s *Nanoseconds) Get() time.Duration {
if s == nil {
return 0
}
return s.Duration
}

70
vendor/go.mau.fi/util/jsontime/helpers.go vendored Normal file
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// Copyright (c) 2023 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package jsontime
import (
"time"
)
func zeroSafeUnixToTime(val int64, fn func(int64) time.Time) time.Time {
if val == 0 {
return time.Time{}
}
return fn(val)
}
func UM(time time.Time) UnixMilli {
return UnixMilli{Time: time}
}
func UMInt(ts int64) UnixMilli {
return UM(zeroSafeUnixToTime(ts, time.UnixMilli))
}
func UnixMilliNow() UnixMilli {
return UM(time.Now())
}
func UMicro(time time.Time) UnixMicro {
return UnixMicro{Time: time}
}
func UMicroInt(ts int64) UnixMicro {
return UMicro(zeroSafeUnixToTime(ts, time.UnixMicro))
}
func UnixMicroNow() UnixMicro {
return UMicro(time.Now())
}
func UN(time time.Time) UnixNano {
return UnixNano{Time: time}
}
func UNInt(ts int64) UnixNano {
return UN(zeroSafeUnixToTime(ts, func(i int64) time.Time {
return time.Unix(0, i)
}))
}
func UnixNanoNow() UnixNano {
return UN(time.Now())
}
func U(time time.Time) Unix {
return Unix{Time: time}
}
func UInt(ts int64) Unix {
return U(zeroSafeUnixToTime(ts, func(i int64) time.Time {
return time.Unix(i, 0)
}))
}
func UnixNow() Unix {
return U(time.Now())
}

185
vendor/go.mau.fi/util/jsontime/integer.go vendored Normal file
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// Copyright (c) 2023 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package jsontime
import (
"database/sql"
"database/sql/driver"
"encoding/json"
"errors"
"fmt"
"time"
)
var ErrNotInteger = errors.New("value is not an integer")
func parseTime(data []byte, unixConv func(int64) time.Time, into *time.Time) error {
var val int64
err := json.Unmarshal(data, &val)
if err != nil {
return err
}
if val == 0 {
*into = time.Time{}
} else {
*into = unixConv(val)
}
return nil
}
func anyIntegerTo64(src any) (int64, error) {
switch v := src.(type) {
case int:
return int64(v), nil
case int8:
return int64(v), nil
case int16:
return int64(v), nil
case int32:
return int64(v), nil
case int64:
return v, nil
default:
return 0, fmt.Errorf("%w: %T", ErrNotInteger, src)
}
}
func anyIntegerToTime(src any, unixConv func(int64) time.Time, into *time.Time) error {
i64, err := anyIntegerTo64(src)
if err != nil {
return err
}
*into = unixConv(i64)
return nil
}
func zeroSafeUnix(t time.Time, method func(time.Time) int64) int64 {
if t.IsZero() {
return 0
}
return method(t)
}
var _ sql.Scanner = &UnixMilli{}
var _ driver.Valuer = UnixMilli{}
type UnixMilli struct {
time.Time
}
func (um UnixMilli) MarshalJSON() ([]byte, error) {
return json.Marshal(um.UnixMilli())
}
func (um *UnixMilli) UnmarshalJSON(data []byte) error {
return parseTime(data, time.UnixMilli, &um.Time)
}
func (um UnixMilli) Value() (driver.Value, error) {
return um.UnixMilli(), nil
}
func (um *UnixMilli) Scan(src any) error {
return anyIntegerToTime(src, time.UnixMilli, &um.Time)
}
func (um UnixMilli) Unix() int64 { return zeroSafeUnix(um.Time, time.Time.Unix) }
func (um UnixMilli) UnixMilli() int64 { return zeroSafeUnix(um.Time, time.Time.UnixMilli) }
func (um UnixMilli) UnixMicro() int64 { return zeroSafeUnix(um.Time, time.Time.UnixMicro) }
func (um UnixMilli) UnixNano() int64 { return zeroSafeUnix(um.Time, time.Time.UnixNano) }
var _ sql.Scanner = &UnixMicro{}
var _ driver.Valuer = UnixMicro{}
type UnixMicro struct {
time.Time
}
func (um UnixMicro) MarshalJSON() ([]byte, error) {
return json.Marshal(um.UnixMicro())
}
func (um *UnixMicro) UnmarshalJSON(data []byte) error {
return parseTime(data, time.UnixMicro, &um.Time)
}
func (um UnixMicro) Value() (driver.Value, error) {
return um.UnixMicro(), nil
}
func (um *UnixMicro) Scan(src any) error {
return anyIntegerToTime(src, time.UnixMicro, &um.Time)
}
func (um UnixMicro) Unix() int64 { return zeroSafeUnix(um.Time, time.Time.Unix) }
func (um UnixMicro) UnixMilli() int64 { return zeroSafeUnix(um.Time, time.Time.UnixMilli) }
func (um UnixMicro) UnixMicro() int64 { return zeroSafeUnix(um.Time, time.Time.UnixMicro) }
func (um UnixMicro) UnixNano() int64 { return zeroSafeUnix(um.Time, time.Time.UnixNano) }
var _ sql.Scanner = &UnixNano{}
var _ driver.Valuer = UnixNano{}
type UnixNano struct {
time.Time
}
func (un UnixNano) MarshalJSON() ([]byte, error) {
return json.Marshal(un.UnixNano())
}
func (un *UnixNano) UnmarshalJSON(data []byte) error {
return parseTime(data, func(i int64) time.Time {
return time.Unix(0, i)
}, &un.Time)
}
func (un UnixNano) Value() (driver.Value, error) {
return un.UnixNano(), nil
}
func (un *UnixNano) Scan(src any) error {
return anyIntegerToTime(src, func(i int64) time.Time {
return time.Unix(0, i)
}, &un.Time)
}
func (un UnixNano) Unix() int64 { return zeroSafeUnix(un.Time, time.Time.Unix) }
func (un UnixNano) UnixMilli() int64 { return zeroSafeUnix(un.Time, time.Time.UnixMilli) }
func (un UnixNano) UnixMicro() int64 { return zeroSafeUnix(un.Time, time.Time.UnixMicro) }
func (un UnixNano) UnixNano() int64 { return zeroSafeUnix(un.Time, time.Time.UnixNano) }
type Unix struct {
time.Time
}
func (u Unix) MarshalJSON() ([]byte, error) {
return json.Marshal(u.Unix())
}
var _ sql.Scanner = &Unix{}
var _ driver.Valuer = Unix{}
func (u *Unix) UnmarshalJSON(data []byte) error {
return parseTime(data, func(i int64) time.Time {
return time.Unix(i, 0)
}, &u.Time)
}
func (u Unix) Value() (driver.Value, error) {
return u.Unix(), nil
}
func (u *Unix) Scan(src any) error {
return anyIntegerToTime(src, func(i int64) time.Time {
return time.Unix(i, 0)
}, &u.Time)
}
func (u Unix) Unix() int64 { return zeroSafeUnix(u.Time, time.Time.Unix) }
func (u Unix) UnixMilli() int64 { return zeroSafeUnix(u.Time, time.Time.UnixMilli) }
func (u Unix) UnixMicro() int64 { return zeroSafeUnix(u.Time, time.Time.UnixMicro) }
func (u Unix) UnixNano() int64 { return zeroSafeUnix(u.Time, time.Time.UnixNano) }

95
vendor/go.mau.fi/util/jsontime/string.go vendored Normal file
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// Copyright (c) 2023 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package jsontime
import (
"encoding/json"
"strconv"
"time"
)
func parseTimeString(data []byte, unixConv func(int64) time.Time, into *time.Time) error {
var strVal string
err := json.Unmarshal(data, &strVal)
if err != nil {
return err
}
val, err := strconv.ParseInt(strVal, 10, 64)
if err != nil {
return err
}
if val == 0 {
*into = time.Time{}
} else {
*into = unixConv(val)
}
return nil
}
type UnixMilliString struct {
time.Time
}
func (um UnixMilliString) MarshalJSON() ([]byte, error) {
if um.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(um.UnixMilli(), 10))
}
func (um *UnixMilliString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, time.UnixMilli, &um.Time)
}
type UnixMicroString struct {
time.Time
}
func (um UnixMicroString) MarshalJSON() ([]byte, error) {
if um.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(um.UnixMicro(), 10))
}
func (um *UnixMicroString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, time.UnixMicro, &um.Time)
}
type UnixNanoString struct {
time.Time
}
func (um UnixNanoString) MarshalJSON() ([]byte, error) {
if um.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(um.UnixNano(), 10))
}
func (um *UnixNanoString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, func(i int64) time.Time {
return time.Unix(0, i)
}, &um.Time)
}
type UnixString struct {
time.Time
}
func (u UnixString) MarshalJSON() ([]byte, error) {
if u.IsZero() {
return []byte{'"', '0', '"'}, nil
}
return json.Marshal(strconv.FormatInt(u.Unix(), 10))
}
func (u *UnixString) UnmarshalJSON(data []byte) error {
return parseTimeString(data, func(i int64) time.Time {
return time.Unix(i, 0)
}, &u.Time)
}

43
vendor/go.mau.fi/util/ptr/ptr.go vendored Normal file
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@@ -0,0 +1,43 @@
// Copyright (c) 2024 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package ptr
// Clone creates a shallow copy of the given pointer.
func Clone[T any](val *T) *T {
if val == nil {
return nil
}
valCopy := *val
return &valCopy
}
// Ptr returns a pointer to the given value.
func Ptr[T any](val T) *T {
return &val
}
// NonZero returns a pointer to the given comparable value, unless the value is the type's zero value.
func NonZero[T comparable](val T) *T {
var zero T
return NonDefault(val, zero)
}
// NonDefault returns a pointer to the first parameter, unless it is equal to the second parameter.
func NonDefault[T comparable](val, def T) *T {
if val == def {
return nil
}
return &val
}
// Val returns the value of the given pointer, or the zero value of the type if the pointer is nil.
func Val[T any](ptr *T) (val T) {
if ptr != nil {
val = *ptr
}
return
}

21
vendor/go.mau.fi/util/random/bytes.go vendored Normal file
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@@ -0,0 +1,21 @@
// Copyright (c) 2023 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package random
import (
"crypto/rand"
)
// Bytes generates the given amount of random bytes using crypto/rand, and panics if it fails.
func Bytes(n int) []byte {
data := make([]byte, n)
_, err := rand.Read(data)
if err != nil {
panic(err)
}
return data
}

127
vendor/go.mau.fi/util/random/string.go vendored Normal file
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@@ -0,0 +1,127 @@
// Copyright (c) 2025 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
package random
import (
"encoding/binary"
"hash/crc32"
"strings"
"go.mau.fi/util/exbytes"
)
const letters = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
// StringBytes generates a random string of the given length and returns it as a byte array.
func StringBytes(n int) []byte {
return StringBytesCharset(n, letters)
}
// AppendSequence generates a random sequence of the given length using the given character set
// and appends it to the given output slice.
func AppendSequence[T any](n int, charset, output []T) []T {
if n <= 0 {
return output
}
if output == nil {
output = make([]T, 0, n)
}
// If risk of modulo bias is too high, use 32-bit integers as source instead of 16-bit.
if 65536%len(charset) < 200 {
input := Bytes(n * 2)
for i := 0; i < n; i++ {
output = append(output, charset[binary.BigEndian.Uint16(input[i*2:])%uint16(len(charset))])
}
} else {
input := Bytes(n * 4)
for i := 0; i < n; i++ {
output = append(output, charset[binary.BigEndian.Uint32(input[i*4:])%uint32(len(charset))])
}
}
return output
}
// StringBytesCharset generates a random string of the given length using the given character set and returns it as a byte array.
// Note that the character set must be ASCII. For arbitrary Unicode, use [AppendSequence] with a `[]rune`.
func StringBytesCharset(n int, charset string) []byte {
if n <= 0 {
return []byte{}
}
input := Bytes(n * 2)
for i := 0; i < n; i++ {
// The risk of modulo bias is (65536 % len(charset)) / 65536.
// For the default charset, that's 2 in 65536 or 0.003 %.
input[i] = charset[binary.BigEndian.Uint16(input[i*2:])%uint16(len(charset))]
}
input = input[:n]
return input
}
// String generates a random string of the given length.
func String(n int) string {
if n <= 0 {
return ""
}
return exbytes.UnsafeString(StringBytes(n))
}
// StringCharset generates a random string of the given length using the given character set.
// Note that the character set must be ASCII. For arbitrary Unicode, use [AppendSequence] with a `[]rune`.
func StringCharset(n int, charset string) string {
if n <= 0 {
return ""
}
return exbytes.UnsafeString(StringBytesCharset(n, charset))
}
func base62Encode(val uint32, minWidth int) []byte {
out := make([]byte, 0, minWidth)
for val > 0 {
out = append(out, letters[val%uint32(len(letters))])
val /= 62
}
if len(out) < minWidth {
paddedOut := make([]byte, minWidth)
copy(paddedOut[minWidth-len(out):], out)
for i := 0; i < minWidth-len(out); i++ {
paddedOut[i] = '0'
}
out = paddedOut
}
return out
}
// Token generates a GitHub-style token with the given prefix, a random part, and a checksum at the end.
// The format is `prefix_random_checksum`. The checksum is always 6 characters.
func Token(namespace string, randomLength int) string {
token := make([]byte, len(namespace)+1+randomLength+1+6)
copy(token, namespace)
token[len(namespace)] = '_'
copy(token[len(namespace)+1:], StringBytes(randomLength))
token[len(namespace)+randomLength+1] = '_'
checksum := base62Encode(crc32.ChecksumIEEE(token[:len(token)-7]), 6)
copy(token[len(token)-6:], checksum)
return exbytes.UnsafeString(token)
}
// GetTokenPrefix parses the given token generated with Token, validates the checksum and returns the prefix namespace.
func GetTokenPrefix(token string) string {
parts := strings.Split(token, "_")
if len(parts) != 3 {
return ""
}
checksum := base62Encode(crc32.ChecksumIEEE([]byte(parts[0]+"_"+parts[1])), 6)
if string(checksum) != parts[2] {
return ""
}
return parts[0]
}
// IsToken checks if the given token is a valid token generated with Token with the given namespace..
func IsToken(namespace, token string) bool {
return GetTokenPrefix(token) == namespace
}

53
vendor/go.mau.fi/util/retryafter/retryafter.go vendored Normal file
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@@ -0,0 +1,53 @@
// Copyright (c) 2021 Dillon Dixon
// Copyright (c) 2023 Tulir Asokan
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Package retryafter contains a utility function for parsing the Retry-After HTTP header.
package retryafter
import (
"net/http"
"strconv"
"time"
)
var now = time.Now
// Parse parses the backoff time specified in the Retry-After header if present.
// See https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Retry-After.
//
// The second parameter is the fallback duration to use if the header is not present or invalid.
//
// Example:
//
// time.Sleep(retryafter.Parse(resp.Header.Get("Retry-After"), 5*time.Second))
func Parse(retryAfter string, fallback time.Duration) time.Duration {
if retryAfter == "" {
return fallback
} else if t, err := time.Parse(http.TimeFormat, retryAfter); err == nil {
return t.Sub(now())
} else if seconds, err := strconv.Atoi(retryAfter); err == nil {
return time.Duration(seconds) * time.Second
}
return fallback
}
// Should returns true if the given status code indicates that the request should be retried.
//
// if retryafter.Should(resp.StatusCode, true) {
// time.Sleep(retryafter.Parse(resp.Header.Get("Retry-After"), 5*time.Second))
// }
func Should(statusCode int, retryOnRateLimit bool) bool {
switch statusCode {
case http.StatusBadGateway, http.StatusServiceUnavailable, http.StatusGatewayTimeout:
return true
case http.StatusTooManyRequests:
return retryOnRateLimit
default:
return false
}
}

93
vendor/golang.org/x/crypto/curve25519/curve25519.go generated vendored Normal file
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@@ -0,0 +1,93 @@
// Copyright 2019 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package curve25519 provides an implementation of the X25519 function, which
// performs scalar multiplication on the elliptic curve known as Curve25519
// according to [RFC 7748].
//
// The curve25519 package is a wrapper for the X25519 implementation in the
// crypto/ecdh package. It is [frozen] and is not accepting new features.
//
// [RFC 7748]: https://datatracker.ietf.org/doc/html/rfc7748
// [frozen]: https://go.dev/wiki/Frozen
package curve25519
import "crypto/ecdh"
// ScalarMult sets dst to the product scalar * point.
//
// Deprecated: when provided a low-order point, ScalarMult will set dst to all
// zeroes, irrespective of the scalar. Instead, use the X25519 function, which
// will return an error.
func ScalarMult(dst, scalar, point *[32]byte) {
if _, err := x25519(dst, scalar[:], point[:]); err != nil {
// The only error condition for x25519 when the inputs are 32 bytes long
// is if the output would have been the all-zero value.
for i := range dst {
dst[i] = 0
}
}
}
// ScalarBaseMult sets dst to the product scalar * base where base is the
// standard generator.
//
// It is recommended to use the X25519 function with Basepoint instead, as
// copying into fixed size arrays can lead to unexpected bugs.
func ScalarBaseMult(dst, scalar *[32]byte) {
curve := ecdh.X25519()
priv, err := curve.NewPrivateKey(scalar[:])
if err != nil {
panic("curve25519: " + err.Error())
}
copy(dst[:], priv.PublicKey().Bytes())
}
const (
// ScalarSize is the size of the scalar input to X25519.
ScalarSize = 32
// PointSize is the size of the point input to X25519.
PointSize = 32
)
// Basepoint is the canonical Curve25519 generator.
var Basepoint []byte
var basePoint = [32]byte{9}
func init() { Basepoint = basePoint[:] }
// X25519 returns the result of the scalar multiplication (scalar * point),
// according to RFC 7748, Section 5. scalar, point and the return value are
// slices of 32 bytes.
//
// scalar can be generated at random, for example with crypto/rand. point should
// be either Basepoint or the output of another X25519 call.
//
// If point is Basepoint (but not if it's a different slice with the same
// contents) a precomputed implementation might be used for performance.
func X25519(scalar, point []byte) ([]byte, error) {
// Outline the body of function, to let the allocation be inlined in the
// caller, and possibly avoid escaping to the heap.
var dst [32]byte
return x25519(&dst, scalar, point)
}
func x25519(dst *[32]byte, scalar, point []byte) ([]byte, error) {
curve := ecdh.X25519()
pub, err := curve.NewPublicKey(point)
if err != nil {
return nil, err
}
priv, err := curve.NewPrivateKey(scalar)
if err != nil {
return nil, err
}
out, err := priv.ECDH(pub)
if err != nil {
return nil, err
}
copy(dst[:], out)
return dst[:], nil
}

95
vendor/golang.org/x/crypto/hkdf/hkdf.go generated vendored Normal file
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@@ -0,0 +1,95 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package hkdf implements the HMAC-based Extract-and-Expand Key Derivation
// Function (HKDF) as defined in RFC 5869.
//
// HKDF is a cryptographic key derivation function (KDF) with the goal of
// expanding limited input keying material into one or more cryptographically
// strong secret keys.
package hkdf
import (
"crypto/hmac"
"errors"
"hash"
"io"
)
// Extract generates a pseudorandom key for use with Expand from an input secret
// and an optional independent salt.
//
// Only use this function if you need to reuse the extracted key with multiple
// Expand invocations and different context values. Most common scenarios,
// including the generation of multiple keys, should use New instead.
func Extract(hash func() hash.Hash, secret, salt []byte) []byte {
if salt == nil {
salt = make([]byte, hash().Size())
}
extractor := hmac.New(hash, salt)
extractor.Write(secret)
return extractor.Sum(nil)
}
type hkdf struct {
expander hash.Hash
size int
info []byte
counter byte
prev []byte
buf []byte
}
func (f *hkdf) Read(p []byte) (int, error) {
// Check whether enough data can be generated
need := len(p)
remains := len(f.buf) + int(255-f.counter+1)*f.size
if remains < need {
return 0, errors.New("hkdf: entropy limit reached")
}
// Read any leftover from the buffer
n := copy(p, f.buf)
p = p[n:]
// Fill the rest of the buffer
for len(p) > 0 {
if f.counter > 1 {
f.expander.Reset()
}
f.expander.Write(f.prev)
f.expander.Write(f.info)
f.expander.Write([]byte{f.counter})
f.prev = f.expander.Sum(f.prev[:0])
f.counter++
// Copy the new batch into p
f.buf = f.prev
n = copy(p, f.buf)
p = p[n:]
}
// Save leftovers for next run
f.buf = f.buf[n:]
return need, nil
}
// Expand returns a Reader, from which keys can be read, using the given
// pseudorandom key and optional context info, skipping the extraction step.
//
// The pseudorandomKey should have been generated by Extract, or be a uniformly
// random or pseudorandom cryptographically strong key. See RFC 5869, Section
// 3.3. Most common scenarios will want to use New instead.
func Expand(hash func() hash.Hash, pseudorandomKey, info []byte) io.Reader {
expander := hmac.New(hash, pseudorandomKey)
return &hkdf{expander, expander.Size(), info, 1, nil, nil}
}
// New returns a Reader, from which keys can be read, using the given hash,
// secret, salt and context info. Salt and info can be nil.
func New(hash func() hash.Hash, secret, salt, info []byte) io.Reader {
prk := Extract(hash, secret, salt)
return Expand(hash, prk, info)
}

27
vendor/golang.org/x/exp/LICENSE generated vendored Normal file
View File

@@ -0,0 +1,27 @@
Copyright 2009 The Go Authors.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google LLC nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
vendor/golang.org/x/exp/PATENTS generated vendored Normal file
View File

@@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

54
vendor/golang.org/x/exp/constraints/constraints.go generated vendored Normal file
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@@ -0,0 +1,54 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package constraints defines a set of useful constraints to be used
// with type parameters.
package constraints
import "cmp"
// Signed is a constraint that permits any signed integer type.
// If future releases of Go add new predeclared signed integer types,
// this constraint will be modified to include them.
type Signed interface {
~int | ~int8 | ~int16 | ~int32 | ~int64
}
// Unsigned is a constraint that permits any unsigned integer type.
// If future releases of Go add new predeclared unsigned integer types,
// this constraint will be modified to include them.
type Unsigned interface {
~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
}
// Integer is a constraint that permits any integer type.
// If future releases of Go add new predeclared integer types,
// this constraint will be modified to include them.
type Integer interface {
Signed | Unsigned
}
// Float is a constraint that permits any floating-point type.
// If future releases of Go add new predeclared floating-point types,
// this constraint will be modified to include them.
type Float interface {
~float32 | ~float64
}
// Complex is a constraint that permits any complex numeric type.
// If future releases of Go add new predeclared complex numeric types,
// this constraint will be modified to include them.
type Complex interface {
~complex64 | ~complex128
}
// Ordered is a constraint that permits any ordered type: any type
// that supports the operators < <= >= >.
// If future releases of Go add new ordered types,
// this constraint will be modified to include them.
//
// This type is redundant since Go 1.21 introduced [cmp.Ordered].
//
//go:fix inline
type Ordered = cmp.Ordered

86
vendor/golang.org/x/exp/maps/maps.go generated vendored Normal file
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@@ -0,0 +1,86 @@
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package maps defines various functions useful with maps of any type.
package maps
import "maps"
// Keys returns the keys of the map m.
// The keys will be in an indeterminate order.
//
// The simplest true equivalent using the standard library is:
//
// slices.AppendSeq(make([]K, 0, len(m)), maps.Keys(m))
func Keys[M ~map[K]V, K comparable, V any](m M) []K {
r := make([]K, 0, len(m))
for k := range m {
r = append(r, k)
}
return r
}
// Values returns the values of the map m.
// The values will be in an indeterminate order.
//
// The simplest true equivalent using the standard library is:
//
// slices.AppendSeq(make([]V, 0, len(m)), maps.Values(m))
func Values[M ~map[K]V, K comparable, V any](m M) []V {
r := make([]V, 0, len(m))
for _, v := range m {
r = append(r, v)
}
return r
}
// Equal reports whether two maps contain the same key/value pairs.
// Values are compared using ==.
//
//go:fix inline
func Equal[M1, M2 ~map[K]V, K, V comparable](m1 M1, m2 M2) bool {
return maps.Equal(m1, m2)
}
// EqualFunc is like Equal, but compares values using eq.
// Keys are still compared with ==.
//
//go:fix inline
func EqualFunc[M1 ~map[K]V1, M2 ~map[K]V2, K comparable, V1, V2 any](m1 M1, m2 M2, eq func(V1, V2) bool) bool {
return maps.EqualFunc(m1, m2, eq)
}
// Clear removes all entries from m, leaving it empty.
//
//go:fix inline
func Clear[M ~map[K]V, K comparable, V any](m M) {
clear(m)
}
// Clone returns a copy of m. This is a shallow clone:
// the new keys and values are set using ordinary assignment.
//
//go:fix inline
func Clone[M ~map[K]V, K comparable, V any](m M) M {
return maps.Clone(m)
}
// Copy copies all key/value pairs in src adding them to dst.
// When a key in src is already present in dst,
// the value in dst will be overwritten by the value associated
// with the key in src.
//
//go:fix inline
func Copy[M1 ~map[K]V, M2 ~map[K]V, K comparable, V any](dst M1, src M2) {
maps.Copy(dst, src)
}
// DeleteFunc deletes any key/value pairs from m for which del returns true.
//
//go:fix inline
func DeleteFunc[M ~map[K]V, K comparable, V any](m M, del func(K, V) bool) {
maps.DeleteFunc(m, del)
}

2
vendor/golang.org/x/net/html/escape.go generated vendored
View File

@@ -299,7 +299,7 @@ func escape(w writer, s string) error {
case '\r':
esc = "&#13;"
default:
panic("unrecognized escape character")
panic("html: unrecognized escape character")
}
s = s[i+1:]
if _, err := w.WriteString(esc); err != nil {

57
vendor/golang.org/x/net/html/parse.go generated vendored
View File

@@ -136,7 +136,7 @@ func (p *parser) indexOfElementInScope(s scope, matchTags ...a.Atom) int {
return -1
}
default:
panic("unreachable")
panic(fmt.Sprintf("html: internal error: indexOfElementInScope unknown scope: %d", s))
}
}
switch s {
@@ -179,7 +179,7 @@ func (p *parser) clearStackToContext(s scope) {
return
}
default:
panic("unreachable")
panic(fmt.Sprintf("html: internal error: clearStackToContext unknown scope: %d", s))
}
}
}
@@ -231,7 +231,14 @@ func (p *parser) addChild(n *Node) {
}
if n.Type == ElementNode {
p.oe = append(p.oe, n)
p.insertOpenElement(n)
}
}
func (p *parser) insertOpenElement(n *Node) {
p.oe = append(p.oe, n)
if len(p.oe) > 512 {
panic("html: open stack of elements exceeds 512 nodes")
}
}
@@ -810,7 +817,7 @@ func afterHeadIM(p *parser) bool {
p.im = inFramesetIM
return true
case a.Base, a.Basefont, a.Bgsound, a.Link, a.Meta, a.Noframes, a.Script, a.Style, a.Template, a.Title:
p.oe = append(p.oe, p.head)
p.insertOpenElement(p.head)
defer p.oe.remove(p.head)
return inHeadIM(p)
case a.Head:
@@ -1678,7 +1685,7 @@ func inTableBodyIM(p *parser) bool {
return inTableIM(p)
}
// Section 12.2.6.4.14.
// Section 13.2.6.4.14.
func inRowIM(p *parser) bool {
switch p.tok.Type {
case StartTagToken:
@@ -1690,7 +1697,9 @@ func inRowIM(p *parser) bool {
p.im = inCellIM
return true
case a.Caption, a.Col, a.Colgroup, a.Tbody, a.Tfoot, a.Thead, a.Tr:
if p.popUntil(tableScope, a.Tr) {
if p.elementInScope(tableScope, a.Tr) {
p.clearStackToContext(tableRowScope)
p.oe.pop()
p.im = inTableBodyIM
return false
}
@@ -1700,22 +1709,28 @@ func inRowIM(p *parser) bool {
case EndTagToken:
switch p.tok.DataAtom {
case a.Tr:
if p.popUntil(tableScope, a.Tr) {
if p.elementInScope(tableScope, a.Tr) {
p.clearStackToContext(tableRowScope)
p.oe.pop()
p.im = inTableBodyIM
return true
}
// Ignore the token.
return true
case a.Table:
if p.popUntil(tableScope, a.Tr) {
if p.elementInScope(tableScope, a.Tr) {
p.clearStackToContext(tableRowScope)
p.oe.pop()
p.im = inTableBodyIM
return false
}
// Ignore the token.
return true
case a.Tbody, a.Tfoot, a.Thead:
if p.elementInScope(tableScope, p.tok.DataAtom) {
p.parseImpliedToken(EndTagToken, a.Tr, a.Tr.String())
if p.elementInScope(tableScope, p.tok.DataAtom) && p.elementInScope(tableScope, a.Tr) {
p.clearStackToContext(tableRowScope)
p.oe.pop()
p.im = inTableBodyIM
return false
}
// Ignore the token.
@@ -2222,16 +2237,20 @@ func parseForeignContent(p *parser) bool {
p.acknowledgeSelfClosingTag()
}
case EndTagToken:
if strings.EqualFold(p.oe[len(p.oe)-1].Data, p.tok.Data) {
p.oe = p.oe[:len(p.oe)-1]
return true
}
for i := len(p.oe) - 1; i >= 0; i-- {
if p.oe[i].Namespace == "" {
return p.im(p)
}
if strings.EqualFold(p.oe[i].Data, p.tok.Data) {
p.oe = p.oe[:i]
return true
}
if i > 0 && p.oe[i-1].Namespace == "" {
break
}
}
return true
return p.im(p)
default:
// Ignore the token.
}
@@ -2312,9 +2331,13 @@ func (p *parser) parseCurrentToken() {
}
}
func (p *parser) parse() error {
func (p *parser) parse() (err error) {
defer func() {
if panicErr := recover(); panicErr != nil {
err = fmt.Errorf("%s", panicErr)
}
}()
// Iterate until EOF. Any other error will cause an early return.
var err error
for err != io.EOF {
// CDATA sections are allowed only in foreign content.
n := p.oe.top()
@@ -2343,6 +2366,8 @@ func (p *parser) parse() error {
// <tag>s. Conversely, explicit <tag>s in r's data can be silently dropped,
// with no corresponding node in the resulting tree.
//
// Parse will reject HTML that is nested deeper than 512 elements.
//
// The input is assumed to be UTF-8 encoded.
func Parse(r io.Reader) (*Node, error) {
return ParseWithOptions(r)

2
vendor/golang.org/x/net/html/render.go generated vendored
View File

@@ -184,7 +184,7 @@ func render1(w writer, n *Node) error {
return err
}
// Add initial newline where there is danger of a newline beging ignored.
// Add initial newline where there is danger of a newline being ignored.
if c := n.FirstChild; c != nil && c.Type == TextNode && strings.HasPrefix(c.Data, "\n") {
switch n.Data {
case "pre", "listing", "textarea":

63
vendor/golang.org/x/net/http2/config.go generated vendored
View File

@@ -27,6 +27,7 @@ import (
// - If the resulting value is zero or out of range, use a default.
type http2Config struct {
MaxConcurrentStreams uint32
StrictMaxConcurrentRequests bool
MaxDecoderHeaderTableSize uint32
MaxEncoderHeaderTableSize uint32
MaxReadFrameSize uint32
@@ -55,7 +56,7 @@ func configFromServer(h1 *http.Server, h2 *Server) http2Config {
PermitProhibitedCipherSuites: h2.PermitProhibitedCipherSuites,
CountError: h2.CountError,
}
fillNetHTTPServerConfig(&conf, h1)
fillNetHTTPConfig(&conf, h1.HTTP2)
setConfigDefaults(&conf, true)
return conf
}
@@ -64,12 +65,13 @@ func configFromServer(h1 *http.Server, h2 *Server) http2Config {
// (the net/http Transport).
func configFromTransport(h2 *Transport) http2Config {
conf := http2Config{
MaxEncoderHeaderTableSize: h2.MaxEncoderHeaderTableSize,
MaxDecoderHeaderTableSize: h2.MaxDecoderHeaderTableSize,
MaxReadFrameSize: h2.MaxReadFrameSize,
SendPingTimeout: h2.ReadIdleTimeout,
PingTimeout: h2.PingTimeout,
WriteByteTimeout: h2.WriteByteTimeout,
StrictMaxConcurrentRequests: h2.StrictMaxConcurrentStreams,
MaxEncoderHeaderTableSize: h2.MaxEncoderHeaderTableSize,
MaxDecoderHeaderTableSize: h2.MaxDecoderHeaderTableSize,
MaxReadFrameSize: h2.MaxReadFrameSize,
SendPingTimeout: h2.ReadIdleTimeout,
PingTimeout: h2.PingTimeout,
WriteByteTimeout: h2.WriteByteTimeout,
}
// Unlike most config fields, where out-of-range values revert to the default,
@@ -81,7 +83,7 @@ func configFromTransport(h2 *Transport) http2Config {
}
if h2.t1 != nil {
fillNetHTTPTransportConfig(&conf, h2.t1)
fillNetHTTPConfig(&conf, h2.t1.HTTP2)
}
setConfigDefaults(&conf, false)
return conf
@@ -120,3 +122,48 @@ func adjustHTTP1MaxHeaderSize(n int64) int64 {
const typicalHeaders = 10 // conservative
return n + typicalHeaders*perFieldOverhead
}
func fillNetHTTPConfig(conf *http2Config, h2 *http.HTTP2Config) {
if h2 == nil {
return
}
if h2.MaxConcurrentStreams != 0 {
conf.MaxConcurrentStreams = uint32(h2.MaxConcurrentStreams)
}
if http2ConfigStrictMaxConcurrentRequests(h2) {
conf.StrictMaxConcurrentRequests = true
}
if h2.MaxEncoderHeaderTableSize != 0 {
conf.MaxEncoderHeaderTableSize = uint32(h2.MaxEncoderHeaderTableSize)
}
if h2.MaxDecoderHeaderTableSize != 0 {
conf.MaxDecoderHeaderTableSize = uint32(h2.MaxDecoderHeaderTableSize)
}
if h2.MaxConcurrentStreams != 0 {
conf.MaxConcurrentStreams = uint32(h2.MaxConcurrentStreams)
}
if h2.MaxReadFrameSize != 0 {
conf.MaxReadFrameSize = uint32(h2.MaxReadFrameSize)
}
if h2.MaxReceiveBufferPerConnection != 0 {
conf.MaxUploadBufferPerConnection = int32(h2.MaxReceiveBufferPerConnection)
}
if h2.MaxReceiveBufferPerStream != 0 {
conf.MaxUploadBufferPerStream = int32(h2.MaxReceiveBufferPerStream)
}
if h2.SendPingTimeout != 0 {
conf.SendPingTimeout = h2.SendPingTimeout
}
if h2.PingTimeout != 0 {
conf.PingTimeout = h2.PingTimeout
}
if h2.WriteByteTimeout != 0 {
conf.WriteByteTimeout = h2.WriteByteTimeout
}
if h2.PermitProhibitedCipherSuites {
conf.PermitProhibitedCipherSuites = true
}
if h2.CountError != nil {
conf.CountError = h2.CountError
}
}

61
vendor/golang.org/x/net/http2/config_go124.go generated vendored
View File

@@ -1,61 +0,0 @@
// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.24
package http2
import "net/http"
// fillNetHTTPServerConfig sets fields in conf from srv.HTTP2.
func fillNetHTTPServerConfig(conf *http2Config, srv *http.Server) {
fillNetHTTPConfig(conf, srv.HTTP2)
}
// fillNetHTTPTransportConfig sets fields in conf from tr.HTTP2.
func fillNetHTTPTransportConfig(conf *http2Config, tr *http.Transport) {
fillNetHTTPConfig(conf, tr.HTTP2)
}
func fillNetHTTPConfig(conf *http2Config, h2 *http.HTTP2Config) {
if h2 == nil {
return
}
if h2.MaxConcurrentStreams != 0 {
conf.MaxConcurrentStreams = uint32(h2.MaxConcurrentStreams)
}
if h2.MaxEncoderHeaderTableSize != 0 {
conf.MaxEncoderHeaderTableSize = uint32(h2.MaxEncoderHeaderTableSize)
}
if h2.MaxDecoderHeaderTableSize != 0 {
conf.MaxDecoderHeaderTableSize = uint32(h2.MaxDecoderHeaderTableSize)
}
if h2.MaxConcurrentStreams != 0 {
conf.MaxConcurrentStreams = uint32(h2.MaxConcurrentStreams)
}
if h2.MaxReadFrameSize != 0 {
conf.MaxReadFrameSize = uint32(h2.MaxReadFrameSize)
}
if h2.MaxReceiveBufferPerConnection != 0 {
conf.MaxUploadBufferPerConnection = int32(h2.MaxReceiveBufferPerConnection)
}
if h2.MaxReceiveBufferPerStream != 0 {
conf.MaxUploadBufferPerStream = int32(h2.MaxReceiveBufferPerStream)
}
if h2.SendPingTimeout != 0 {
conf.SendPingTimeout = h2.SendPingTimeout
}
if h2.PingTimeout != 0 {
conf.PingTimeout = h2.PingTimeout
}
if h2.WriteByteTimeout != 0 {
conf.WriteByteTimeout = h2.WriteByteTimeout
}
if h2.PermitProhibitedCipherSuites {
conf.PermitProhibitedCipherSuites = true
}
if h2.CountError != nil {
conf.CountError = h2.CountError
}
}

15
vendor/golang.org/x/net/http2/config_go125.go generated vendored Normal file
View File

@@ -0,0 +1,15 @@
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build !go1.26
package http2
import (
"net/http"
)
func http2ConfigStrictMaxConcurrentRequests(h2 *http.HTTP2Config) bool {
return false
}

15
vendor/golang.org/x/net/http2/config_go126.go generated vendored Normal file
View File

@@ -0,0 +1,15 @@
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build go1.26
package http2
import (
"net/http"
)
func http2ConfigStrictMaxConcurrentRequests(h2 *http.HTTP2Config) bool {
return h2.StrictMaxConcurrentRequests
}

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