Initial commit
parent
84212e6246
commit
a318691954
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userdb
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data
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[general]
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baseURL = https://anticristo.ddns.net
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storage = data ; can be relative or absolute path
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userAgent = "Chtorr Fediverse Server"
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// chtorr project doc.go
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/*
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chtorr document
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*/
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package main
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module chtorr
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go 1.18
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require (
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github.com/gologme/log v1.3.0
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github.com/peterbourgon/diskv/v3 v3.0.1
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github.com/writeas/activityserve v0.0.0-20200409150223-d7ab3eaa4481
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)
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require (
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github.com/captncraig/cors v0.0.0-20190703115713-e80254a89df1 // indirect
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github.com/dchest/uniuri v0.0.0-20200228104902-7aecb25e1fe5 // indirect
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github.com/go-fed/httpsig v0.1.1-0.20200204213531-0ef28562fabe // indirect
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github.com/google/btree v1.0.0 // indirect
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github.com/gorilla/mux v1.7.4 // indirect
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github.com/pkg/errors v0.9.1 // indirect
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github.com/smartystreets/goconvey v1.7.2 // indirect
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github.com/writeas/go-webfinger v1.1.0 // indirect
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github.com/writefreely/go-nodeinfo v1.2.0 // indirect
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 // indirect
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a // indirect
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gopkg.in/ini.v1 v1.55.0 // indirect
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)
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github.com/captncraig/cors v0.0.0-20190703115713-e80254a89df1 h1:AFSJaASPGYNbkUa5c8ZybrcW9pP3Cy7+z5dnpcc/qG8=
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github.com/captncraig/cors v0.0.0-20190703115713-e80254a89df1/go.mod h1:EIlIeMufZ8nqdUhnesledB15xLRl4wIJUppwDLPrdrQ=
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github.com/dchest/uniuri v0.0.0-20200228104902-7aecb25e1fe5 h1:RAV05c0xOkJ3dZGS0JFybxFKZ2WMLabgx3uXnd7rpGs=
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github.com/dchest/uniuri v0.0.0-20200228104902-7aecb25e1fe5/go.mod h1:GgB8SF9nRG+GqaDtLcwJZsQFhcogVCJ79j4EdT0c2V4=
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github.com/go-fed/httpsig v0.1.1-0.20200204213531-0ef28562fabe h1:U71giCx5NjRn4Lb71UuprPHqhjxGv3Jqonb9fgcaJH8=
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github.com/go-fed/httpsig v0.1.1-0.20200204213531-0ef28562fabe/go.mod h1:T56HUNYZUQ1AGUzhAYPugZfp36sKApVnGBgKlIY+aIE=
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github.com/gologme/log v1.2.0/go.mod h1:gq31gQ8wEHkR+WekdWsqDuf8pXTUZA9BnnzTuPz1Y9U=
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github.com/gologme/log v1.3.0 h1:l781G4dE+pbigClDSDzSaaYKtiueHCILUa/qSDsmHAo=
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github.com/gologme/log v1.3.0/go.mod h1:yKT+DvIPdDdDoPtqFrFxheooyVmoqi0BAsw+erN3wA4=
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github.com/google/btree v1.0.0 h1:0udJVsspx3VBr5FwtLhQQtuAsVc79tTq0ocGIPAU6qo=
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github.com/google/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
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github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
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github.com/gorilla/mux v1.7.4 h1:VuZ8uybHlWmqV03+zRzdwKL4tUnIp1MAQtp1mIFE1bc=
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github.com/gorilla/mux v1.7.4/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
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github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
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github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
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github.com/peterbourgon/diskv/v3 v3.0.1 h1:x06SQA46+PKIUftmEujdwSEpIx8kR+M9eLYsUxeYveU=
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github.com/peterbourgon/diskv/v3 v3.0.1/go.mod h1:kJ5Ny7vLdARGU3WUuy6uzO6T0nb/2gWcT1JiBvRmb5o=
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github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
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github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/smartystreets/assertions v1.2.0 h1:42S6lae5dvLc7BrLu/0ugRtcFVjoJNMC/N3yZFZkDFs=
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github.com/smartystreets/assertions v1.2.0/go.mod h1:tcbTF8ujkAEcZ8TElKY+i30BzYlVhC/LOxJk7iOWnoo=
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github.com/smartystreets/goconvey v1.7.2 h1:9RBaZCeXEQ3UselpuwUQHltGVXvdwm6cv1hgR6gDIPg=
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github.com/smartystreets/goconvey v1.7.2/go.mod h1:Vw0tHAZW6lzCRk3xgdin6fKYcG+G3Pg9vgXWeJpQFMM=
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github.com/writeas/activityserve v0.0.0-20200409150223-d7ab3eaa4481 h1:BiSivIxLQFcKoUorpNN3rNwwFG5bITPnqUSyIccfdh0=
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github.com/writeas/activityserve v0.0.0-20200409150223-d7ab3eaa4481/go.mod h1:4akDJSl+sSp+QhrQKMqzAqdV1gJ1pPx6XPI77zgMM8o=
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github.com/writeas/go-webfinger v1.1.0 h1:MzNyt0ry/GMsRmJGftn2o9mPwqK1Q5MLdh4VuJCfb1Q=
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github.com/writeas/go-webfinger v1.1.0/go.mod h1:w2VxyRO/J5vfNjJHYVubsjUGHd3RLDoVciz0DE3ApOc=
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github.com/writefreely/go-nodeinfo v1.2.0 h1:La+YbTCvmpTwFhBSlebWDDL81N88Qf/SCAvRLR7F8ss=
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github.com/writefreely/go-nodeinfo v1.2.0/go.mod h1:UTvE78KpcjYOlRHupZIiSEFcXHioTXuacCbHU+CAcPg=
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golang.org/x/crypto v0.0.0-20180527072434-ab813273cd59/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/sys v0.0.0-20180525142821-c11f84a56e43/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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gopkg.in/ini.v1 v1.55.0 h1:E8yzL5unfpW3M6fz/eB7Cb5MQAYSZ7GKo4Qth+N2sgQ=
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gopkg.in/ini.v1 v1.55.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
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package main
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import (
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"flag"
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"fmt"
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"github.com/gologme/log"
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"github.com/writeas/activityserve"
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)
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func init() {
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debugFlag := flag.Bool("debug", true, "set to true to get debugging information in the console")
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flag.Parse()
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if *debugFlag {
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log.EnableLevel("info")
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log.EnableLevel("error")
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} else {
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log.DisableLevel("info")
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}
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activityserve.Setup("config.ini", *debugFlag)
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UserDbInit()
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}
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func startActor(a activityserve.Actor) {
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a.OnReceiveContent = func(activity map[string]interface{}) {
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object := activity["object"].(map[string]interface{})
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fmt.Println(object["content"].(string))
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}
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}
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func main() {
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var actors []activityserve.Actor
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for acct := range Userdb.Keys(nil) {
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acTemp, _ := activityserve.GetActor(acct, "This is an activityserver test actor", "Service")
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log.Info("Created actor for user: ", acTemp.Name)
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actors = append(actors, acTemp)
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startActor(acTemp)
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}
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for _, ac := range actors {
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ac.Follow("https://bbs.keinpfusch.net/uriel")
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ac.CreateNote("Hello from: "+ac.Name, "")
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}
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// creating a default listener
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instance, _ := activityserve.GetActor("inbox", "This is an activityserver test actor", "Service")
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startActor(instance)
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activityserve.ServeSingleActor(instance)
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}
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package main
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import (
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"crypto/md5"
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"fmt"
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"github.com/gologme/log"
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"github.com/peterbourgon/diskv/v3"
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)
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var Userdb *diskv.Diskv
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func flatTransform(s string) []string {
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t := fmt.Sprintf("%x", md5.Sum([]byte(s)))
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return []string{t}
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}
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func UserDbInit() {
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// Simplest transform function: put all the data files into the base dir.
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// flatTransform := func(s string) []string { return []string{} }
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// Initialize a new diskv store, rooted at "my-data-dir", with a 1MB cache.
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Userdb = diskv.New(diskv.Options{
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BasePath: "userdb",
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Transform: flatTransform,
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CacheSizeMax: 1024 * 1024,
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})
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log.Info("Users Database Created")
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if err := Userdb.WriteString("Uriel", "futura password criptata"); err == nil {
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log.Info("User UserTest Created")
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} else {
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log.Info("Error while creating user", err.Error())
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}
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if err := Userdb.WriteString("Loweel", "futura password criptata"); err == nil {
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log.Info("User LoweelTest Created")
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} else {
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log.Info("Error while creating user", err.Error())
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}
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log.Info("Users Created")
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}
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MIT License
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Copyright (c) 2018 Craig Peterson
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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cors gives you easy control over Cross Origin Resource Sharing for your site.
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It allows you to whitelist particular domains per route, or to simply allow all domains `*` If desired you may customize nearly every aspect of the specification.
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### Syntax
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```
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cors [path] [domains...] {
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origin [origin]
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origin_regexp [regexp]
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methods [methods]
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allow_credentials [allowCredentials]
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max_age [maxAge]
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allowed_headers [allowedHeaders]
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exposed_headers [exposedHeaders]
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}
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```
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* **path** is the file or directory this applies to (default is /).
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* **domains** is a space-seperated list of domains to allow. If ommitted, all domains will be granted access.
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* **origin** is a domain to grant access to. May be specified multiple times or ommitted.
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* **origin_regexp** is a regexp that will be matched to the `Origin` header. Access will be granted accordingly. It can be used in conjonction with the `origin` config (executed as a fallback to `origin`). May be specified multiple times or ommitted.
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* **methods** is set of http methods to allow. Default is these: POST,GET,OPTIONS,PUT,DELETE.
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* **allow_credentials** sets the value of the Access-Control-Allow-Credentials header. Can be true or false. By default, header will not be included.
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* **max_age** is the length of time in seconds to cache preflight info. Not set by default.
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* **allowed_headers** is a comma-seperated list of request headers a client may send.
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* **exposed_headers** is a comma-seperated list of response headers a client may access.
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### Examples
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Simply allow all domains to request any path:
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<code class="block"><span class="hl-directive">cors</span></code>
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Protect specific paths only, and only allow a few domains:
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<code class="block"><span class="hl-directive">cors</span> <span class="hl-arg">/foo http://mysite.com http://anothertrustedsite.com</span></code>
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Full configuration:
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```
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cors / {
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origin http://allowedSite.com
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origin http://anotherSite.org https://anotherSite.org
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origin_regexp .+\.example\.com$
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methods POST,PUT
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allow_credentials false
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max_age 3600
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allowed_headers X-Custom-Header,X-Foobar
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exposed_headers X-Something-Special,SomethingElse
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}
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```
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@ -0,0 +1,117 @@
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package cors
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import (
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"fmt"
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"net/http"
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"regexp"
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)
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||||
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||||
const (
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||||
allowOriginKey string = "Access-Control-Allow-Origin"
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allowCredentialsKey = "Access-Control-Allow-Credentials"
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||||
allowHeadersKey = "Access-Control-Allow-Headers"
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||||
allowMethodsKey = "Access-Control-Allow-Methods"
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||||
maxAgeKey = "Access-Control-Max-Age"
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||||
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||||
originKey = "Origin"
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||||
varyKey = "Vary"
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||||
requestMethodKey = "Access-Control-Request-Method"
|
||||
requestHeadersKey = "Access-Control-Request-Headers"
|
||||
exposeHeadersKey = "Access-Control-Expose-Headers"
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||||
options = "OPTIONS"
|
||||
)
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||||
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||||
type Config struct {
|
||||
AllowedOrigins []string
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||||
OriginRegexps []*regexp.Regexp
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||||
AllowedMethods string
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||||
AllowedHeaders string
|
||||
ExposedHeaders string
|
||||
AllowCredentials *bool
|
||||
MaxAge int
|
||||
}
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||||
|
||||
func Default() *Config {
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||||
return &Config{
|
||||
AllowedOrigins: []string{"*"},
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||||
OriginRegexps: []*regexp.Regexp{},
|
||||
AllowedMethods: "POST, GET, OPTIONS, PUT, DELETE",
|
||||
AllowedHeaders: "",
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||||
ExposedHeaders: "",
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||||
MaxAge: 0,
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||||
AllowCredentials: nil,
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||||
}
|
||||
}
|
||||
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||||
// Read the request, setting response headers as appropriate.
|
||||
// Will NOT write anything to response in any circumstances.
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||||
func (c *Config) HandleRequest(w http.ResponseWriter, r *http.Request) {
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||||
requestOrigin := r.Header.Get(originKey)
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||||
if requestOrigin == "" {
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||||
return
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||||
}
|
||||
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||||
//check origin against allowed origins
|
||||
for _, ao := range c.AllowedOrigins {
|
||||
if ao == "*" || ao == requestOrigin {
|
||||
responseOrigin := "*"
|
||||
if ao != "*" {
|
||||
responseOrigin = requestOrigin
|
||||
}
|
||||
addAllowOriginHeader(w, responseOrigin)
|
||||
break
|
||||
}
|
||||
}
|
||||
|
||||
if w.Header().Get(allowOriginKey) == "" {
|
||||
if c.anyOriginRegexpMatch(requestOrigin) {
|
||||
addAllowOriginHeader(w, requestOrigin)
|
||||
} else {
|
||||
return //if we didn't set a valid allow-origin, none of the other headers matter
|
||||
}
|
||||
}
|
||||
|
||||
if IsPreflight(r) {
|
||||
w.Header().Set(allowMethodsKey, c.AllowedMethods)
|
||||
if c.AllowedHeaders != "" {
|
||||
if c.AllowedHeaders != "*" {
|
||||
w.Header().Set(allowHeadersKey, c.AllowedHeaders)
|
||||
} else {
|
||||
w.Header().Set(allowHeadersKey, r.Header.Get(requestHeadersKey))
|
||||
}
|
||||
|
||||
}
|
||||
if c.MaxAge > 0 {
|
||||
w.Header().Set(maxAgeKey, fmt.Sprint(c.MaxAge))
|
||||
}
|
||||
} else {
|
||||
//regular request
|
||||
if c.ExposedHeaders != "" {
|
||||
w.Header().Set(exposeHeadersKey, c.ExposedHeaders)
|
||||
}
|
||||
}
|
||||
|
||||
if c.AllowCredentials != nil {
|
||||
w.Header().Set(allowCredentialsKey, fmt.Sprint(*c.AllowCredentials))
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
func IsPreflight(r *http.Request) bool {
|
||||
return r.Method == options && r.Header.Get(requestMethodKey) != ""
|
||||
}
|
||||
|
||||
func addAllowOriginHeader(w http.ResponseWriter, allowedOrigin string) {
|
||||
w.Header().Set(allowOriginKey, allowedOrigin)
|
||||
w.Header().Add(varyKey, originKey)
|
||||
}
|
||||
|
||||
func (c *Config) anyOriginRegexpMatch(origin string) bool {
|
||||
for _, r := range c.OriginRegexps {
|
||||
if r.MatchString(origin) {
|
||||
return true
|
||||
}
|
||||
}
|
||||
|
||||
return false
|
||||
}
|
||||
@ -0,0 +1,6 @@
|
||||
language: go
|
||||
|
||||
go:
|
||||
- 1.3
|
||||
- 1.4
|
||||
- tip
|
||||
@ -0,0 +1,121 @@
|
||||
Creative Commons Legal Code
|
||||
|
||||
CC0 1.0 Universal
|
||||
|
||||
CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
|
||||
LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
|
||||
ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
|
||||
INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
|
||||
REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
|
||||
PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
|
||||
THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
|
||||
HEREUNDER.
|
||||
|
||||
Statement of Purpose
|
||||
|
||||
The laws of most jurisdictions throughout the world automatically confer
|
||||
exclusive Copyright and Related Rights (defined below) upon the creator
|
||||
and subsequent owner(s) (each and all, an "owner") of an original work of
|
||||
authorship and/or a database (each, a "Work").
|
||||
|
||||
Certain owners wish to permanently relinquish those rights to a Work for
|
||||
the purpose of contributing to a commons of creative, cultural and
|
||||
scientific works ("Commons") that the public can reliably and without fear
|
||||
of later claims of infringement build upon, modify, incorporate in other
|
||||
works, reuse and redistribute as freely as possible in any form whatsoever
|
||||
and for any purposes, including without limitation commercial purposes.
|
||||
These owners may contribute to the Commons to promote the ideal of a free
|
||||
culture and the further production of creative, cultural and scientific
|
||||
works, or to gain reputation or greater distribution for their Work in
|
||||
part through the use and efforts of others.
|
||||
|
||||
For these and/or other purposes and motivations, and without any
|
||||
expectation of additional consideration or compensation, the person
|
||||
associating CC0 with a Work (the "Affirmer"), to the extent that he or she
|
||||
is an owner of Copyright and Related Rights in the Work, voluntarily
|
||||
elects to apply CC0 to the Work and publicly distribute the Work under its
|
||||
terms, with knowledge of his or her Copyright and Related Rights in the
|
||||
Work and the meaning and intended legal effect of CC0 on those rights.
|
||||
|
||||
1. Copyright and Related Rights. A Work made available under CC0 may be
|
||||
protected by copyright and related or neighboring rights ("Copyright and
|
||||
Related Rights"). Copyright and Related Rights include, but are not
|
||||
limited to, the following:
|
||||
|
||||
i. the right to reproduce, adapt, distribute, perform, display,
|
||||
communicate, and translate a Work;
|
||||
ii. moral rights retained by the original author(s) and/or performer(s);
|
||||
iii. publicity and privacy rights pertaining to a person's image or
|
||||
likeness depicted in a Work;
|
||||
iv. rights protecting against unfair competition in regards to a Work,
|
||||
subject to the limitations in paragraph 4(a), below;
|
||||
v. rights protecting the extraction, dissemination, use and reuse of data
|
||||
in a Work;
|
||||
vi. database rights (such as those arising under Directive 96/9/EC of the
|
||||
European Parliament and of the Council of 11 March 1996 on the legal
|
||||
protection of databases, and under any national implementation
|
||||
thereof, including any amended or successor version of such
|
||||
directive); and
|
||||
vii. other similar, equivalent or corresponding rights throughout the
|
||||
world based on applicable law or treaty, and any national
|
||||
implementations thereof.
|
||||
|
||||
2. Waiver. To the greatest extent permitted by, but not in contravention
|
||||
of, applicable law, Affirmer hereby overtly, fully, permanently,
|
||||
irrevocably and unconditionally waives, abandons, and surrenders all of
|
||||
Affirmer's Copyright and Related Rights and associated claims and causes
|
||||
of action, whether now known or unknown (including existing as well as
|
||||
future claims and causes of action), in the Work (i) in all territories
|
||||
worldwide, (ii) for the maximum duration provided by applicable law or
|
||||
treaty (including future time extensions), (iii) in any current or future
|
||||
medium and for any number of copies, and (iv) for any purpose whatsoever,
|
||||
including without limitation commercial, advertising or promotional
|
||||
purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
|
||||
member of the public at large and to the detriment of Affirmer's heirs and
|
||||
successors, fully intending that such Waiver shall not be subject to
|
||||
revocation, rescission, cancellation, termination, or any other legal or
|
||||
equitable action to disrupt the quiet enjoyment of the Work by the public
|
||||
as contemplated by Affirmer's express Statement of Purpose.
|
||||
|
||||
3. Public License Fallback. Should any part of the Waiver for any reason
|
||||
be judged legally invalid or ineffective under applicable law, then the
|
||||
Waiver shall be preserved to the maximum extent permitted taking into
|
||||
account Affirmer's express Statement of Purpose. In addition, to the
|
||||
extent the Waiver is so judged Affirmer hereby grants to each affected
|
||||
person a royalty-free, non transferable, non sublicensable, non exclusive,
|
||||
irrevocable and unconditional license to exercise Affirmer's Copyright and
|
||||
Related Rights in the Work (i) in all territories worldwide, (ii) for the
|
||||
maximum duration provided by applicable law or treaty (including future
|
||||
time extensions), (iii) in any current or future medium and for any number
|
||||
of copies, and (iv) for any purpose whatsoever, including without
|
||||
limitation commercial, advertising or promotional purposes (the
|
||||
"License"). The License shall be deemed effective as of the date CC0 was
|
||||
applied by Affirmer to the Work. Should any part of the License for any
|
||||
reason be judged legally invalid or ineffective under applicable law, such
|
||||
partial invalidity or ineffectiveness shall not invalidate the remainder
|
||||
of the License, and in such case Affirmer hereby affirms that he or she
|
||||
will not (i) exercise any of his or her remaining Copyright and Related
|
||||
Rights in the Work or (ii) assert any associated claims and causes of
|
||||
action with respect to the Work, in either case contrary to Affirmer's
|
||||
express Statement of Purpose.
|
||||
|
||||
4. Limitations and Disclaimers.
|
||||
|
||||
a. No trademark or patent rights held by Affirmer are waived, abandoned,
|
||||
surrendered, licensed or otherwise affected by this document.
|
||||
b. Affirmer offers the Work as-is and makes no representations or
|
||||
warranties of any kind concerning the Work, express, implied,
|
||||
statutory or otherwise, including without limitation warranties of
|
||||
title, merchantability, fitness for a particular purpose, non
|
||||
infringement, or the absence of latent or other defects, accuracy, or
|
||||
the present or absence of errors, whether or not discoverable, all to
|
||||
the greatest extent permissible under applicable law.
|
||||
c. Affirmer disclaims responsibility for clearing rights of other persons
|
||||
that may apply to the Work or any use thereof, including without
|
||||
limitation any person's Copyright and Related Rights in the Work.
|
||||
Further, Affirmer disclaims responsibility for obtaining any necessary
|
||||
consents, permissions or other rights required for any use of the
|
||||
Work.
|
||||
d. Affirmer understands and acknowledges that Creative Commons is not a
|
||||
party to this document and has no duty or obligation with respect to
|
||||
this CC0 or use of the Work.
|
||||
@ -0,0 +1,97 @@
|
||||
Package uniuri
|
||||
=====================
|
||||
|
||||
[](https://travis-ci.org/dchest/uniuri)
|
||||
|
||||
```go
|
||||
import "github.com/dchest/uniuri"
|
||||
```
|
||||
|
||||
Package uniuri generates random strings good for use in URIs to identify
|
||||
unique objects.
|
||||
|
||||
Example usage:
|
||||
|
||||
```go
|
||||
s := uniuri.New() // s is now "apHCJBl7L1OmC57n"
|
||||
```
|
||||
|
||||
A standard string created by New() is 16 bytes in length and consists of
|
||||
Latin upper and lowercase letters, and numbers (from the set of 62 allowed
|
||||
characters), which means that it has ~95 bits of entropy. To get more
|
||||
entropy, you can use NewLen(UUIDLen), which returns 20-byte string, giving
|
||||
~119 bits of entropy, or any other desired length.
|
||||
|
||||
Functions read from crypto/rand random source, and panic if they fail to
|
||||
read from it.
|
||||
|
||||
|
||||
Constants
|
||||
---------
|
||||
|
||||
```go
|
||||
const (
|
||||
// StdLen is a standard length of uniuri string to achive ~95 bits of entropy.
|
||||
StdLen = 16
|
||||
// UUIDLen is a length of uniuri string to achive ~119 bits of entropy, closest
|
||||
// to what can be losslessly converted to UUIDv4 (122 bits).
|
||||
UUIDLen = 20
|
||||
)
|
||||
|
||||
```
|
||||
|
||||
|
||||
|
||||
Variables
|
||||
---------
|
||||
|
||||
```go
|
||||
var StdChars = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
|
||||
```
|
||||
|
||||
|
||||
StdChars is a set of standard characters allowed in uniuri string.
|
||||
|
||||
|
||||
Functions
|
||||
---------
|
||||
|
||||
### func New
|
||||
|
||||
```go
|
||||
func New() string
|
||||
```
|
||||
|
||||
New returns a new random string of the standard length, consisting of
|
||||
standard characters.
|
||||
|
||||
### func NewLen
|
||||
|
||||
```go
|
||||
func NewLen(length int) string
|
||||
```
|
||||
|
||||
NewLen returns a new random string of the provided length, consisting of
|
||||
standard characters.
|
||||
|
||||
### func NewLenChars
|
||||
|
||||
```go
|
||||
func NewLenChars(length int, chars []byte) string
|
||||
```
|
||||
|
||||
NewLenChars returns a new random string of the provided length, consisting
|
||||
of the provided byte slice of allowed characters (maximum 256).
|
||||
|
||||
|
||||
|
||||
Public domain dedication
|
||||
------------------------
|
||||
|
||||
Written in 2011-2014 by Dmitry Chestnykh
|
||||
|
||||
The author(s) have dedicated all copyright and related and
|
||||
neighboring rights to this software to the public domain
|
||||
worldwide. Distributed without any warranty.
|
||||
http://creativecommons.org/publicdomain/zero/1.0/
|
||||
|
||||
@ -0,0 +1,81 @@
|
||||
// Written in 2011-2014 by Dmitry Chestnykh
|
||||
//
|
||||
// The author(s) have dedicated all copyright and related and
|
||||
// neighboring rights to this software to the public domain
|
||||
// worldwide. Distributed without any warranty.
|
||||
// http://creativecommons.org/publicdomain/zero/1.0/
|
||||
|
||||
// Package uniuri generates random strings good for use in URIs to identify
|
||||
// unique objects.
|
||||
//
|
||||
// Example usage:
|
||||
//
|
||||
// s := uniuri.New() // s is now "apHCJBl7L1OmC57n"
|
||||
//
|
||||
// A standard string created by New() is 16 bytes in length and consists of
|
||||
// Latin upper and lowercase letters, and numbers (from the set of 62 allowed
|
||||
// characters), which means that it has ~95 bits of entropy. To get more
|
||||
// entropy, you can use NewLen(UUIDLen), which returns 20-byte string, giving
|
||||
// ~119 bits of entropy, or any other desired length.
|
||||
//
|
||||
// Functions read from crypto/rand random source, and panic if they fail to
|
||||
// read from it.
|
||||
package uniuri
|
||||
|
||||
import "crypto/rand"
|
||||
|
||||
const (
|
||||
// StdLen is a standard length of uniuri string to achive ~95 bits of entropy.
|
||||
StdLen = 16
|
||||
// UUIDLen is a length of uniuri string to achive ~119 bits of entropy, closest
|
||||
// to what can be losslessly converted to UUIDv4 (122 bits).
|
||||
UUIDLen = 20
|
||||
)
|
||||
|
||||
// StdChars is a set of standard characters allowed in uniuri string.
|
||||
var StdChars = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
|
||||
|
||||
// New returns a new random string of the standard length, consisting of
|
||||
// standard characters.
|
||||
func New() string {
|
||||
return NewLenChars(StdLen, StdChars)
|
||||
}
|
||||
|
||||
// NewLen returns a new random string of the provided length, consisting of
|
||||
// standard characters.
|
||||
func NewLen(length int) string {
|
||||
return NewLenChars(length, StdChars)
|
||||
}
|
||||
|
||||
// NewLenChars returns a new random string of the provided length, consisting
|
||||
// of the provided byte slice of allowed characters (maximum 256).
|
||||
func NewLenChars(length int, chars []byte) string {
|
||||
if length == 0 {
|
||||
return ""
|
||||
}
|
||||
clen := len(chars)
|
||||
if clen < 2 || clen > 256 {
|
||||
panic("uniuri: wrong charset length for NewLenChars")
|
||||
}
|
||||
maxrb := 255 - (256 % clen)
|
||||
b := make([]byte, length)
|
||||
r := make([]byte, length+(length/4)) // storage for random bytes.
|
||||
i := 0
|
||||
for {
|
||||
if _, err := rand.Read(r); err != nil {
|
||||
panic("uniuri: error reading random bytes: " + err.Error())
|
||||
}
|
||||
for _, rb := range r {
|
||||
c := int(rb)
|
||||
if c > maxrb {
|
||||
// Skip this number to avoid modulo bias.
|
||||
continue
|
||||
}
|
||||
b[i] = chars[c%clen]
|
||||
i++
|
||||
if i == length {
|
||||
return string(b)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,29 @@
|
||||
BSD 3-Clause License
|
||||
|
||||
Copyright (c) 2018, go-fed
|
||||
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 the copyright holder 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 HOLDER 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.
|
||||
@ -0,0 +1,94 @@
|
||||
# httpsig
|
||||
|
||||
`go get github.com/go-fed/httpsig`
|
||||
|
||||
Implementation of [HTTP Signatures](https://tools.ietf.org/html/draft-cavage-http-signatures).
|
||||
|
||||
Supports many different combinations of MAC, HMAC signing of hash, or RSA
|
||||
signing of hash schemes. Its goals are:
|
||||
|
||||
* Have a very simple interface for signing and validating
|
||||
* Support a variety of signing algorithms and combinations
|
||||
* Support setting either headers (`Authorization` or `Signature`)
|
||||
* Remaining flexible with headers included in the signing string
|
||||
* Support both HTTP requests and responses
|
||||
* Explicitly not support known-cryptographically weak algorithms
|
||||
* Support automatic signing and validating Digest headers
|
||||
|
||||
## How to use
|
||||
|
||||
`import "github.com/go-fed/httpsig"`
|
||||
|
||||
### Signing
|
||||
|
||||
Signing a request or response requires creating a new `Signer` and using it:
|
||||
|
||||
```
|
||||
func sign(privateKey crypto.PrivateKey, pubKeyId string, r *http.Request) error {
|
||||
prefs := []httpsig.Algorithm{httpsig.RSA_SHA512, httpsig.RSA_SHA256}
|
||||
digestAlgorithm := DigestSha256
|
||||
// The "Date" and "Digest" headers must already be set on r, as well as r.URL.
|
||||
headersToSign := []string{httpsig.RequestTarget, "date", "digest"}
|
||||
signer, chosenAlgo, err := httpsig.NewSigner(prefs, digestAlgorithm, headersToSign, httpsig.Signature)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
// To sign the digest, we need to give the signer a copy of the body...
|
||||
// ...but it is optional, no digest will be signed if given "nil"
|
||||
body := ...
|
||||
// If r were a http.ResponseWriter, call SignResponse instead.
|
||||
return signer.SignRequest(privateKey, pubKeyId, r, body)
|
||||
}
|
||||
```
|
||||
|
||||
`Signer`s are not safe for concurrent use by goroutines, so be sure to guard
|
||||
access:
|
||||
|
||||
```
|
||||
type server struct {
|
||||
signer httpsig.Signer
|
||||
mu *sync.Mutex
|
||||
}
|
||||
|
||||
func (s *server) handlerFunc(w http.ResponseWriter, r *http.Request) {
|
||||
privateKey := ...
|
||||
pubKeyId := ...
|
||||
// Set headers and such on w
|
||||
s.mu.Lock()
|
||||
defer s.mu.Unlock()
|
||||
// To sign the digest, we need to give the signer a copy of the response body...
|
||||
// ...but it is optional, no digest will be signed if given "nil"
|
||||
body := ...
|
||||
err := s.signer.SignResponse(privateKey, pubKeyId, w, body)
|
||||
if err != nil {
|
||||
...
|
||||
}
|
||||
...
|
||||
}
|
||||
```
|
||||
|
||||
The `pubKeyId` will be used at verification time.
|
||||
|
||||
### Verifying
|
||||
|
||||
Verifying requires an application to use the `pubKeyId` to both retrieve the key
|
||||
needed for verification as well as determine the algorithm to use. Use a
|
||||
`Verifier`:
|
||||
|
||||
```
|
||||
func verify(r *http.Request) error {
|
||||
verifier, err := httpsig.NewVerifier(r)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
pubKeyId := verifier.KeyId()
|
||||
var algo httpsig.Algorithm = ...
|
||||
var pubKey crypto.PublicKey = ...
|
||||
// The verifier will verify the Digest in addition to the HTTP signature
|
||||
return verifier.Verify(pubKey, algo)
|
||||
}
|
||||
```
|
||||
|
||||
`Verifier`s are not safe for concurrent use by goroutines, but since they are
|
||||
constructed on a per-request or per-response basis it should not be a common
|
||||
restriction.
|
||||
@ -0,0 +1,370 @@
|
||||
package httpsig
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
"crypto/hmac"
|
||||
"crypto/rsa"
|
||||
"crypto/sha256"
|
||||
"crypto/sha512"
|
||||
"crypto/subtle" // Use should trigger great care
|
||||
"errors"
|
||||
"fmt"
|
||||
"golang.org/x/crypto/blake2b"
|
||||
"golang.org/x/crypto/blake2s"
|
||||
"golang.org/x/crypto/ripemd160"
|
||||
"golang.org/x/crypto/sha3"
|
||||
"hash"
|
||||
"io"
|
||||
"strings"
|
||||
)
|
||||
|
||||
const (
|
||||
hmacPrefix = "hmac"
|
||||
rsaPrefix = "rsa"
|
||||
md4String = "md4"
|
||||
md5String = "md5"
|
||||
sha1String = "sha1"
|
||||
sha224String = "sha224"
|
||||
sha256String = "sha256"
|
||||
sha384String = "sha384"
|
||||
sha512String = "sha512"
|
||||
md5sha1String = "md5sha1"
|
||||
ripemd160String = "ripemd160"
|
||||
sha3_224String = "sha3-224"
|
||||
sha3_256String = "sha3-256"
|
||||
sha3_384String = "sha3-384"
|
||||
sha3_512String = "sha3-512"
|
||||
sha512_224String = "sha512-224"
|
||||
sha512_256String = "sha512-256"
|
||||
blake2s_256String = "blake2s-256"
|
||||
blake2b_256String = "blake2b-256"
|
||||
blake2b_384String = "blake2b-384"
|
||||
blake2b_512String = "blake2b-512"
|
||||
)
|
||||
|
||||
var blake2Algorithms = map[crypto.Hash]bool{
|
||||
crypto.BLAKE2s_256: true,
|
||||
crypto.BLAKE2b_256: true,
|
||||
crypto.BLAKE2b_384: true,
|
||||
crypto.BLAKE2b_512: true,
|
||||
}
|
||||
|
||||
var hashToDef = map[crypto.Hash]struct {
|
||||
name string
|
||||
new func(key []byte) (hash.Hash, error) // Only MACers will accept a key
|
||||
}{
|
||||
// Which standard names these?
|
||||
// The spec lists the following as a canonical reference, which is dead:
|
||||
// http://www.iana.org/assignments/signature-algorithms
|
||||
//
|
||||
// Note that the forbidden hashes have an invalid 'new' function.
|
||||
crypto.MD4: {md4String, func(key []byte) (hash.Hash, error) { return nil, nil }},
|
||||
crypto.MD5: {md5String, func(key []byte) (hash.Hash, error) { return nil, nil }},
|
||||
crypto.SHA1: {sha1String, func(key []byte) (hash.Hash, error) { return nil, nil }},
|
||||
crypto.SHA224: {sha224String, func(key []byte) (hash.Hash, error) { return sha256.New224(), nil }},
|
||||
crypto.SHA256: {sha256String, func(key []byte) (hash.Hash, error) { return sha256.New(), nil }},
|
||||
crypto.SHA384: {sha384String, func(key []byte) (hash.Hash, error) { return sha512.New384(), nil }},
|
||||
crypto.SHA512: {sha512String, func(key []byte) (hash.Hash, error) { return sha512.New(), nil }},
|
||||
crypto.MD5SHA1: {md5sha1String, func(key []byte) (hash.Hash, error) { return nil, nil }},
|
||||
crypto.RIPEMD160: {ripemd160String, func(key []byte) (hash.Hash, error) { return ripemd160.New(), nil }},
|
||||
crypto.SHA3_224: {sha3_224String, func(key []byte) (hash.Hash, error) { return sha3.New224(), nil }},
|
||||
crypto.SHA3_256: {sha3_256String, func(key []byte) (hash.Hash, error) { return sha3.New256(), nil }},
|
||||
crypto.SHA3_384: {sha3_384String, func(key []byte) (hash.Hash, error) { return sha3.New384(), nil }},
|
||||
crypto.SHA3_512: {sha3_512String, func(key []byte) (hash.Hash, error) { return sha3.New512(), nil }},
|
||||
crypto.SHA512_224: {sha512_224String, func(key []byte) (hash.Hash, error) { return sha512.New512_224(), nil }},
|
||||
crypto.SHA512_256: {sha512_256String, func(key []byte) (hash.Hash, error) { return sha512.New512_256(), nil }},
|
||||
crypto.BLAKE2s_256: {blake2s_256String, func(key []byte) (hash.Hash, error) { return blake2s.New256(key) }},
|
||||
crypto.BLAKE2b_256: {blake2b_256String, func(key []byte) (hash.Hash, error) { return blake2b.New256(key) }},
|
||||
crypto.BLAKE2b_384: {blake2b_384String, func(key []byte) (hash.Hash, error) { return blake2b.New384(key) }},
|
||||
crypto.BLAKE2b_512: {blake2b_512String, func(key []byte) (hash.Hash, error) { return blake2b.New512(key) }},
|
||||
}
|
||||
|
||||
var stringToHash map[string]crypto.Hash
|
||||
|
||||
const (
|
||||
defaultAlgorithm = RSA_SHA256
|
||||
defaultAlgorithmHashing = sha256String
|
||||
)
|
||||
|
||||
func init() {
|
||||
stringToHash = make(map[string]crypto.Hash, len(hashToDef))
|
||||
for k, v := range hashToDef {
|
||||
stringToHash[v.name] = k
|
||||
}
|
||||
// This should guarantee that at runtime the defaultAlgorithm will not
|
||||
// result in errors when fetching a macer or signer (see algorithms.go)
|
||||
if ok, err := isAvailable(string(defaultAlgorithmHashing)); err != nil {
|
||||
panic(err)
|
||||
} else if !ok {
|
||||
panic(fmt.Sprintf("the default httpsig algorithm is unavailable: %q", defaultAlgorithm))
|
||||
}
|
||||
}
|
||||
|
||||
func isForbiddenHash(h crypto.Hash) bool {
|
||||
switch h {
|
||||
// Not actually cryptographically secure
|
||||
case crypto.MD4:
|
||||
fallthrough
|
||||
case crypto.MD5:
|
||||
fallthrough
|
||||
case crypto.SHA1:
|
||||
fallthrough
|
||||
case crypto.MD5SHA1: // shorthand for crypto/tls, not actually implemented
|
||||
return true
|
||||
}
|
||||
// Still cryptographically secure
|
||||
return false
|
||||
}
|
||||
|
||||
// signer is an internally public type.
|
||||
type signer interface {
|
||||
Sign(rand io.Reader, p crypto.PrivateKey, sig []byte) ([]byte, error)
|
||||
Verify(pub crypto.PublicKey, toHash, signature []byte) error
|
||||
String() string
|
||||
}
|
||||
|
||||
// macer is an internally public type.
|
||||
type macer interface {
|
||||
Sign(sig, key []byte) ([]byte, error)
|
||||
Equal(sig, actualMAC, key []byte) (bool, error)
|
||||
String() string
|
||||
}
|
||||
|
||||
var _ macer = &hmacAlgorithm{}
|
||||
|
||||
type hmacAlgorithm struct {
|
||||
fn func(key []byte) (hash.Hash, error)
|
||||
kind crypto.Hash
|
||||
}
|
||||
|
||||
func (h *hmacAlgorithm) Sign(sig, key []byte) ([]byte, error) {
|
||||
hs, err := h.fn(key)
|
||||
if err = setSig(hs, sig); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return hs.Sum(nil), nil
|
||||
}
|
||||
|
||||
func (h *hmacAlgorithm) Equal(sig, actualMAC, key []byte) (bool, error) {
|
||||
hs, err := h.fn(key)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
defer hs.Reset()
|
||||
err = setSig(hs, sig)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
expected := hs.Sum(nil)
|
||||
return hmac.Equal(actualMAC, expected), nil
|
||||
}
|
||||
|
||||
func (h *hmacAlgorithm) String() string {
|
||||
return fmt.Sprintf("%s-%s", hmacPrefix, hashToDef[h.kind].name)
|
||||
}
|
||||
|
||||
var _ signer = &rsaAlgorithm{}
|
||||
|
||||
type rsaAlgorithm struct {
|
||||
hash.Hash
|
||||
kind crypto.Hash
|
||||
}
|
||||
|
||||
func (r *rsaAlgorithm) setSig(b []byte) error {
|
||||
n, err := r.Write(b)
|
||||
if err != nil {
|
||||
r.Reset()
|
||||
return err
|
||||
} else if n != len(b) {
|
||||
r.Reset()
|
||||
return fmt.Errorf("could only write %d of %d bytes of signature to hash", n, len(b))
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (r *rsaAlgorithm) Sign(rand io.Reader, p crypto.PrivateKey, sig []byte) ([]byte, error) {
|
||||
defer r.Reset()
|
||||
if err := r.setSig(sig); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
rsaK, ok := p.(*rsa.PrivateKey)
|
||||
if !ok {
|
||||
return nil, errors.New("crypto.PrivateKey is not *rsa.PrivateKey")
|
||||
}
|
||||
return rsa.SignPKCS1v15(rand, rsaK, r.kind, r.Sum(nil))
|
||||
}
|
||||
|
||||
func (r *rsaAlgorithm) Verify(pub crypto.PublicKey, toHash, signature []byte) error {
|
||||
defer r.Reset()
|
||||
rsaK, ok := pub.(*rsa.PublicKey)
|
||||
if !ok {
|
||||
return errors.New("crypto.PublicKey is not *rsa.PublicKey")
|
||||
}
|
||||
if err := r.setSig(toHash); err != nil {
|
||||
return err
|
||||
}
|
||||
return rsa.VerifyPKCS1v15(rsaK, r.kind, r.Sum(nil), signature)
|
||||
}
|
||||
|
||||
func (r *rsaAlgorithm) String() string {
|
||||
return fmt.Sprintf("%s-%s", rsaPrefix, hashToDef[r.kind].name)
|
||||
}
|
||||
|
||||
var _ macer = &blakeMacAlgorithm{}
|
||||
|
||||
type blakeMacAlgorithm struct {
|
||||
fn func(key []byte) (hash.Hash, error)
|
||||
kind crypto.Hash
|
||||
}
|
||||
|
||||
func (r *blakeMacAlgorithm) Sign(sig, key []byte) ([]byte, error) {
|
||||
hs, err := r.fn(key)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
if err = setSig(hs, sig); err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return hs.Sum(nil), nil
|
||||
}
|
||||
|
||||
func (r *blakeMacAlgorithm) Equal(sig, actualMAC, key []byte) (bool, error) {
|
||||
hs, err := r.fn(key)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
defer hs.Reset()
|
||||
err = setSig(hs, sig)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
expected := hs.Sum(nil)
|
||||
return subtle.ConstantTimeCompare(actualMAC, expected) == 1, nil
|
||||
}
|
||||
|
||||
func (r *blakeMacAlgorithm) String() string {
|
||||
return fmt.Sprintf("%s", hashToDef[r.kind].name)
|
||||
}
|
||||
|
||||
func setSig(a hash.Hash, b []byte) error {
|
||||
n, err := a.Write(b)
|
||||
if err != nil {
|
||||
a.Reset()
|
||||
return err
|
||||
} else if n != len(b) {
|
||||
a.Reset()
|
||||
return fmt.Errorf("could only write %d of %d bytes of signature to hash", n, len(b))
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// IsSupportedHttpSigAlgorithm returns true if the string is supported by this
|
||||
// library, is not a hash known to be weak, and is supported by the hardware.
|
||||
func IsSupportedHttpSigAlgorithm(algo string) bool {
|
||||
a, err := isAvailable(algo)
|
||||
return a && err == nil
|
||||
}
|
||||
|
||||
// isAvailable is an internally public function
|
||||
func isAvailable(algo string) (bool, error) {
|
||||
c, ok := stringToHash[algo]
|
||||
if !ok {
|
||||
return false, fmt.Errorf("no match for %q", algo)
|
||||
}
|
||||
if isForbiddenHash(c) {
|
||||
return false, fmt.Errorf("forbidden hash type in %q", algo)
|
||||
}
|
||||
return c.Available(), nil
|
||||
}
|
||||
|
||||
func newAlgorithmConstructor(algo string) (fn func(k []byte) (hash.Hash, error), c crypto.Hash, e error) {
|
||||
ok := false
|
||||
c, ok = stringToHash[algo]
|
||||
if !ok {
|
||||
e = fmt.Errorf("no match for %q", algo)
|
||||
return
|
||||
}
|
||||
if isForbiddenHash(c) {
|
||||
e = fmt.Errorf("forbidden hash type in %q", algo)
|
||||
return
|
||||
}
|
||||
algoDef, ok := hashToDef[c]
|
||||
if !ok {
|
||||
e = fmt.Errorf("have crypto.Hash %v but no definition", c)
|
||||
return
|
||||
}
|
||||
fn = func(key []byte) (hash.Hash, error) {
|
||||
h, err := algoDef.new(key)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return h, nil
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
func newAlgorithm(algo string, key []byte) (hash.Hash, crypto.Hash, error) {
|
||||
fn, c, err := newAlgorithmConstructor(algo)
|
||||
if err != nil {
|
||||
return nil, c, err
|
||||
}
|
||||
h, err := fn(key)
|
||||
return h, c, err
|
||||
}
|
||||
|
||||
// signerFromString is an internally public method constructor
|
||||
func signerFromString(s string) (signer, error) {
|
||||
s = strings.ToLower(s)
|
||||
if !strings.HasPrefix(s, rsaPrefix) {
|
||||
return nil, fmt.Errorf("no signer matching %q", s)
|
||||
}
|
||||
algo := strings.TrimPrefix(s, rsaPrefix+"-")
|
||||
hash, cHash, err := newAlgorithm(algo, nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &rsaAlgorithm{
|
||||
Hash: hash,
|
||||
kind: cHash,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// macerFromString is an internally public method constructor
|
||||
func macerFromString(s string) (macer, error) {
|
||||
s = strings.ToLower(s)
|
||||
if strings.HasPrefix(s, hmacPrefix) {
|
||||
algo := strings.TrimPrefix(s, hmacPrefix+"-")
|
||||
hashFn, cHash, err := newAlgorithmConstructor(algo)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
// Ensure below does not panic
|
||||
_, err = hashFn(nil)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &hmacAlgorithm{
|
||||
fn: func(key []byte) (hash.Hash, error) {
|
||||
return hmac.New(func() hash.Hash {
|
||||
h, e := hashFn(nil)
|
||||
if e != nil {
|
||||
panic(e)
|
||||
}
|
||||
return h
|
||||
}, key), nil
|
||||
},
|
||||
kind: cHash,
|
||||
}, nil
|
||||
} else if bl, ok := stringToHash[s]; ok && blake2Algorithms[bl] {
|
||||
hashFn, cHash, err := newAlgorithmConstructor(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return &blakeMacAlgorithm{
|
||||
fn: hashFn,
|
||||
kind: cHash,
|
||||
}, nil
|
||||
} else {
|
||||
return nil, fmt.Errorf("no MACer matching %q", s)
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,120 @@
|
||||
package httpsig
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto"
|
||||
"encoding/base64"
|
||||
"fmt"
|
||||
"hash"
|
||||
"net/http"
|
||||
"strings"
|
||||
)
|
||||
|
||||
type DigestAlgorithm string
|
||||
|
||||
const (
|
||||
DigestSha256 DigestAlgorithm = "SHA-256"
|
||||
DigestSha512 = "SHA-512"
|
||||
)
|
||||
|
||||
var digestToDef = map[DigestAlgorithm]crypto.Hash{
|
||||
DigestSha256: crypto.SHA256,
|
||||
DigestSha512: crypto.SHA512,
|
||||
}
|
||||
|
||||
// IsSupportedDigestAlgorithm returns true if hte string is supported by this
|
||||
// library, is not a hash known to be weak, and is supported by the hardware.
|
||||
func IsSupportedDigestAlgorithm(algo string) bool {
|
||||
uc := DigestAlgorithm(strings.ToUpper(algo))
|
||||
c, ok := digestToDef[uc]
|
||||
return ok && c.Available()
|
||||
}
|
||||
|
||||
func getHash(alg DigestAlgorithm) (h hash.Hash, toUse DigestAlgorithm, err error) {
|
||||
upper := DigestAlgorithm(strings.ToUpper(string(alg)))
|
||||
c, ok := digestToDef[upper]
|
||||
if !ok {
|
||||
err = fmt.Errorf("unknown or unsupported Digest algorithm: %s", alg)
|
||||
} else if !c.Available() {
|
||||
err = fmt.Errorf("unavailable Digest algorithm: %s", alg)
|
||||
} else {
|
||||
h = c.New()
|
||||
toUse = upper
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
const (
|
||||
digestHeader = "Digest"
|
||||
digestDelim = "="
|
||||
)
|
||||
|
||||
func addDigest(r *http.Request, algo DigestAlgorithm, b []byte) (err error) {
|
||||
_, ok := r.Header[digestHeader]
|
||||
if ok {
|
||||
err = fmt.Errorf("cannot add Digest: Digest is already set")
|
||||
return
|
||||
}
|
||||
var h hash.Hash
|
||||
var a DigestAlgorithm
|
||||
h, a, err = getHash(algo)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
h.Write(b)
|
||||
sum := h.Sum(nil)
|
||||
r.Header.Add(digestHeader,
|
||||
fmt.Sprintf("%s%s%s",
|
||||
a,
|
||||
digestDelim,
|
||||
base64.StdEncoding.EncodeToString(sum[:])))
|
||||
return
|
||||
}
|
||||
|
||||
func addDigestResponse(r http.ResponseWriter, algo DigestAlgorithm, b []byte) (err error) {
|
||||
_, ok := r.Header()[digestHeader]
|
||||
if ok {
|
||||
err = fmt.Errorf("cannot add Digest: Digest is already set")
|
||||
return
|
||||
}
|
||||
var h hash.Hash
|
||||
var a DigestAlgorithm
|
||||
h, a, err = getHash(algo)
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
h.Write(b)
|
||||
sum := h.Sum(nil)
|
||||
r.Header().Add(digestHeader,
|
||||
fmt.Sprintf("%s%s%s",
|
||||
a,
|
||||
digestDelim,
|
||||
base64.StdEncoding.EncodeToString(sum[:])))
|
||||
return
|
||||
}
|
||||
|
||||
func verifyDigest(r *http.Request, body *bytes.Buffer) (err error) {
|
||||
d := r.Header.Get(digestHeader)
|
||||
if len(d) == 0 {
|
||||
err = fmt.Errorf("cannot verify Digest: request has no Digest header")
|
||||
return
|
||||
}
|
||||
elem := strings.SplitN(d, digestDelim, 2)
|
||||
if len(elem) != 2 {
|
||||
err = fmt.Errorf("cannot verify Digest: malformed Digest: %s", d)
|
||||
return
|
||||
}
|
||||
var h hash.Hash
|
||||
h, _, err = getHash(DigestAlgorithm(elem[0]))
|
||||
if err != nil {
|
||||
return
|
||||
}
|
||||
h.Write(body.Bytes())
|
||||
sum := h.Sum(nil)
|
||||
encSum := base64.StdEncoding.EncodeToString(sum[:])
|
||||
if encSum != elem[1] {
|
||||
err = fmt.Errorf("cannot verify Digest: header Digest does not match the digest of the request body")
|
||||
return
|
||||
}
|
||||
return
|
||||
}
|
||||
@ -0,0 +1,2 @@
|
||||
golang.org/x/crypto v0.0.0-20180527072434-ab813273cd59 h1:hk3yo72LXLapY9EXVttc3Z1rLOxT9IuAPPX3GpY2+jo=
|
||||
golang.org/x/sys v0.0.0-20180525142821-c11f84a56e43 h1:PvnWIWTbA7gsEBkKjt0HV9hckYfcqYv8s/ju7ArZ0do=
|
||||
@ -0,0 +1,241 @@
|
||||
// Implements HTTP request and response signing and verification. Supports the
|
||||
// major MAC and asymmetric key signature algorithms. It has several safety
|
||||
// restrictions: One, none of the widely known non-cryptographically safe
|
||||
// algorithms are permitted; Two, the RSA SHA256 algorithms must be available in
|
||||
// the binary (and it should, barring export restrictions); Finally, the library
|
||||
// assumes either the 'Authorizationn' or 'Signature' headers are to be set (but
|
||||
// not both).
|
||||
package httpsig
|
||||
|
||||
import (
|
||||
"crypto"
|
||||
"fmt"
|
||||
"net/http"
|
||||
)
|
||||
|
||||
// Algorithm specifies a cryptography secure algorithm for signing HTTP requests
|
||||
// and responses.
|
||||
type Algorithm string
|
||||
|
||||
const (
|
||||
// MAC-based algoirthms.
|
||||
HMAC_SHA224 Algorithm = hmacPrefix + "-" + sha224String
|
||||
HMAC_SHA256 Algorithm = hmacPrefix + "-" + sha256String
|
||||
HMAC_SHA384 Algorithm = hmacPrefix + "-" + sha384String
|
||||
HMAC_SHA512 Algorithm = hmacPrefix + "-" + sha512String
|
||||
HMAC_RIPEMD160 Algorithm = hmacPrefix + "-" + ripemd160String
|
||||
HMAC_SHA3_224 Algorithm = hmacPrefix + "-" + sha3_224String
|
||||
HMAC_SHA3_256 Algorithm = hmacPrefix + "-" + sha3_256String
|
||||
HMAC_SHA3_384 Algorithm = hmacPrefix + "-" + sha3_384String
|
||||
HMAC_SHA3_512 Algorithm = hmacPrefix + "-" + sha3_512String
|
||||
HMAC_SHA512_224 Algorithm = hmacPrefix + "-" + sha512_224String
|
||||
HMAC_SHA512_256 Algorithm = hmacPrefix + "-" + sha512_256String
|
||||
HMAC_BLAKE2S_256 Algorithm = hmacPrefix + "-" + blake2s_256String
|
||||
HMAC_BLAKE2B_256 Algorithm = hmacPrefix + "-" + blake2b_256String
|
||||
HMAC_BLAKE2B_384 Algorithm = hmacPrefix + "-" + blake2b_384String
|
||||
HMAC_BLAKE2B_512 Algorithm = hmacPrefix + "-" + blake2b_512String
|
||||
BLAKE2S_256 Algorithm = blake2s_256String
|
||||
BLAKE2B_256 Algorithm = blake2b_256String
|
||||
BLAKE2B_384 Algorithm = blake2b_384String
|
||||
BLAKE2B_512 Algorithm = blake2b_512String
|
||||
// RSA-based algorithms.
|
||||
RSA_SHA224 Algorithm = rsaPrefix + "-" + sha224String
|
||||
// RSA_SHA256 is the default algorithm.
|
||||
RSA_SHA256 Algorithm = rsaPrefix + "-" + sha256String
|
||||
RSA_SHA384 Algorithm = rsaPrefix + "-" + sha384String
|
||||
RSA_SHA512 Algorithm = rsaPrefix + "-" + sha512String
|
||||
RSA_RIPEMD160 Algorithm = rsaPrefix + "-" + ripemd160String
|
||||
// Just because you can glue things together, doesn't mean they will
|
||||
// work. The following options are not supported.
|
||||
rsa_SHA3_224 Algorithm = rsaPrefix + "-" + sha3_224String
|
||||
rsa_SHA3_256 Algorithm = rsaPrefix + "-" + sha3_256String
|
||||
rsa_SHA3_384 Algorithm = rsaPrefix + "-" + sha3_384String
|
||||
rsa_SHA3_512 Algorithm = rsaPrefix + "-" + sha3_512String
|
||||
rsa_SHA512_224 Algorithm = rsaPrefix + "-" + sha512_224String
|
||||
rsa_SHA512_256 Algorithm = rsaPrefix + "-" + sha512_256String
|
||||
rsa_BLAKE2S_256 Algorithm = rsaPrefix + "-" + blake2s_256String
|
||||
rsa_BLAKE2B_256 Algorithm = rsaPrefix + "-" + blake2b_256String
|
||||
rsa_BLAKE2B_384 Algorithm = rsaPrefix + "-" + blake2b_384String
|
||||
rsa_BLAKE2B_512 Algorithm = rsaPrefix + "-" + blake2b_512String
|
||||
)
|
||||
|
||||
// HTTP Signatures can be applied to different HTTP headers, depending on the
|
||||
// expected application behavior.
|
||||
type SignatureScheme string
|
||||
|
||||
const (
|
||||
// Signature will place the HTTP Signature into the 'Signature' HTTP
|
||||
// header.
|
||||
Signature SignatureScheme = "Signature"
|
||||
// Authorization will place the HTTP Signature into the 'Authorization'
|
||||
// HTTP header.
|
||||
Authorization SignatureScheme = "Authorization"
|
||||
)
|
||||
|
||||
const (
|
||||
// The HTTP Signatures specification uses the "Signature" auth-scheme
|
||||
// for the Authorization header. This is coincidentally named, but not
|
||||
// semantically the same, as the "Signature" HTTP header value.
|
||||
signatureAuthScheme = "Signature"
|
||||
)
|
||||
|
||||
// There are subtle differences to the values in the header. The Authorization
|
||||
// header has an 'auth-scheme' value that must be prefixed to the rest of the
|
||||
// key and values.
|
||||
func (s SignatureScheme) authScheme() string {
|
||||
switch s {
|
||||
case Authorization:
|
||||
return signatureAuthScheme
|
||||
default:
|
||||
return ""
|
||||
}
|
||||
}
|
||||
|
||||
// Signers will sign HTTP requests or responses based on the algorithms and
|
||||
// headers selected at creation time.
|
||||
//
|
||||
// Signers are not safe to use between multiple goroutines.
|
||||
//
|
||||
// Note that signatures do set the deprecated 'algorithm' parameter for
|
||||
// backwards compatibility.
|
||||
type Signer interface {
|
||||
// SignRequest signs the request using a private key. The public key id
|
||||
// is used by the HTTP server to identify which key to use to verify the
|
||||
// signature.
|
||||
//
|
||||
// If the Signer was created using a MAC based algorithm, then the key
|
||||
// is expected to be of type []byte. If the Signer was created using an
|
||||
// RSA based algorithm, then the private key is expected to be of type
|
||||
// *rsa.PrivateKey.
|
||||
//
|
||||
// A Digest (RFC 3230) will be added to the request. The body provided
|
||||
// must match the body used in the request, and is allowed to be nil.
|
||||
// The Digest ensures the request body is not tampered with in flight,
|
||||
// and if the signer is created to also sign the "Digest" header, the
|
||||
// HTTP Signature will then ensure both the Digest and body are not both
|
||||
// modified to maliciously represent different content.
|
||||
SignRequest(pKey crypto.PrivateKey, pubKeyId string, r *http.Request, body []byte) error
|
||||
// SignResponse signs the response using a private key. The public key
|
||||
// id is used by the HTTP client to identify which key to use to verify
|
||||
// the signature.
|
||||
//
|
||||
// If the Signer was created using a MAC based algorithm, then the key
|
||||
// is expected to be of type []byte. If the Signer was created using an
|
||||
// RSA based algorithm, then the private key is expected to be of type
|
||||
// *rsa.PrivateKey.
|
||||
//
|
||||
// A Digest (RFC 3230) will be added to the response. The body provided
|
||||
// must match the body written in the response, and is allowed to be
|
||||
// nil. The Digest ensures the response body is not tampered with in
|
||||
// flight, and if the signer is created to also sign the "Digest"
|
||||
// header, the HTTP Signature will then ensure both the Digest and body
|
||||
// are not both modified to maliciously represent different content.
|
||||
SignResponse(pKey crypto.PrivateKey, pubKeyId string, r http.ResponseWriter, body []byte) error
|
||||
}
|
||||
|
||||
// NewSigner creates a new Signer with the provided algorithm preferences to
|
||||
// make HTTP signatures. Only the first available algorithm will be used, which
|
||||
// is returned by this function along with the Signer. If none of the preferred
|
||||
// algorithms were available, then the default algorithm is used. The headers
|
||||
// specified will be included into the HTTP signatures.
|
||||
//
|
||||
// The Digest will also be calculated on a request's body using the provided
|
||||
// digest algorithm, if "Digest" is one of the headers listed.
|
||||
//
|
||||
// The provided scheme determines which header is populated with the HTTP
|
||||
// Signature.
|
||||
//
|
||||
// An error is returned if an unknown or a known cryptographically insecure
|
||||
// Algorithm is provided.
|
||||
func NewSigner(prefs []Algorithm, dAlgo DigestAlgorithm, headers []string, scheme SignatureScheme) (Signer, Algorithm, error) {
|
||||
for _, pref := range prefs {
|
||||
s, err := newSigner(pref, dAlgo, headers, scheme)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
return s, pref, err
|
||||
}
|
||||
s, err := newSigner(defaultAlgorithm, dAlgo, headers, scheme)
|
||||
return s, defaultAlgorithm, err
|
||||
}
|
||||
|
||||
// Verifier verifies HTTP Signatures.
|
||||
//
|
||||
// It will determine which of the supported headers has the parameters
|
||||
// that define the signature.
|
||||
//
|
||||
// Verifiers are not safe to use between multiple goroutines.
|
||||
//
|
||||
// Note that verification ignores the deprecated 'algorithm' parameter.
|
||||
type Verifier interface {
|
||||
// KeyId gets the public key id that the signature is signed with.
|
||||
//
|
||||
// Note that the application is expected to determine the algorithm
|
||||
// used based on metadata or out-of-band information for this key id.
|
||||
KeyId() string
|
||||
// Verify accepts the public key specified by KeyId and returns an
|
||||
// error if verification fails or if the signature is malformed. The
|
||||
// algorithm must be the one used to create the signature in order to
|
||||
// pass verification. The algorithm is determined based on metadata or
|
||||
// out-of-band information for the key id.
|
||||
//
|
||||
// If the signature was created using a MAC based algorithm, then the
|
||||
// key is expected to be of type []byte. If the signature was created
|
||||
// using an RSA based algorithm, then the public key is expected to be
|
||||
// of type *rsa.PublicKey.
|
||||
Verify(pKey crypto.PublicKey, algo Algorithm) error
|
||||
}
|
||||
|
||||
const (
|
||||
// host is treated specially because golang may not include it in the
|
||||
// request header map on the server side of a request.
|
||||
hostHeader = "Host"
|
||||
)
|
||||
|
||||
// NewVerifier verifies the given request. It returns an error if the HTTP
|
||||
// Signature parameters are not present in any headers, are present in more than
|
||||
// one header, are malformed, or are missing required parameters. It ignores
|
||||
// unknown HTTP Signature parameters.
|
||||
func NewVerifier(r *http.Request) (Verifier, error) {
|
||||
h := r.Header
|
||||
if _, hasHostHeader := h[hostHeader]; len(r.Host) > 0 && !hasHostHeader {
|
||||
h[hostHeader] = []string{r.Host}
|
||||
}
|
||||
return newVerifier(h, func(h http.Header, toInclude []string) (string, error) {
|
||||
return signatureString(h, toInclude, addRequestTarget(r))
|
||||
})
|
||||
}
|
||||
|
||||
// NewResponseVerifier verifies the given response. It returns errors under the
|
||||
// same conditions as NewVerifier.
|
||||
func NewResponseVerifier(r *http.Response) (Verifier, error) {
|
||||
return newVerifier(r.Header, func(h http.Header, toInclude []string) (string, error) {
|
||||
return signatureString(h, toInclude, requestTargetNotPermitted)
|
||||
})
|
||||
}
|
||||
|
||||
func newSigner(algo Algorithm, dAlgo DigestAlgorithm, headers []string, scheme SignatureScheme) (Signer, error) {
|
||||
s, err := signerFromString(string(algo))
|
||||
if err == nil {
|
||||
a := &asymmSigner{
|
||||
s: s,
|
||||
dAlgo: dAlgo,
|
||||
headers: headers,
|
||||
targetHeader: scheme,
|
||||
prefix: scheme.authScheme(),
|
||||
}
|
||||
return a, nil
|
||||
}
|
||||
m, err := macerFromString(string(algo))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("no crypto implementation available for %q", algo)
|
||||
}
|
||||
c := &macSigner{
|
||||
m: m,
|
||||
dAlgo: dAlgo,
|
||||
headers: headers,
|
||||
targetHeader: scheme,
|
||||