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Merge branch 'master' into socket-mode

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Wim 2022-03-25 22:03:04 +01:00 committed by GitHub
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14
Dockerfile_whatsappmulti Normal file
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@ -0,0 +1,14 @@
FROM alpine AS builder
COPY . /go/src/matterbridge
RUN apk --no-cache add go git \
&& cd /go/src/matterbridge \
&& CGO_ENABLED=0 go build -tags whatsappmulti -mod vendor -ldflags "-X github.com/42wim/matterbridge/version.GitHash=$(git log --pretty=format:'%h' -n 1)" -o /bin/matterbridge
FROM alpine
RUN apk --no-cache add ca-certificates mailcap
COPY --from=builder /bin/matterbridge /bin/matterbridge
RUN mkdir /etc/matterbridge \
&& touch /etc/matterbridge/matterbridge.toml \
&& ln -sf /matterbridge.toml /etc/matterbridge/matterbridge.toml
ENTRYPOINT ["/bin/matterbridge", "-conf", "/etc/matterbridge/matterbridge.toml"]

74
README.md
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@ -58,21 +58,22 @@ And more...
- [Binaries](#binaries)
- [Packages](#packages)
- [Building](#building)
- [Building with whatsapp (beta) multidevice support](#building-with-whatsapp-beta-multidevice-support)
- [Configuration](#configuration)
- [Basic configuration](#basic-configuration)
- [Settings](#settings)
- [Advanced configuration](#advanced-configuration)
- [Examples](#examples)
- [Bridge mattermost (off-topic) - irc (#testing)](#bridge-mattermost-off-topic---irc-testing)
- [Bridge slack (#general) - discord (general)](#bridge-slack-general---discord-general)
- [Running](#running)
- [Docker](#docker)
- [Systemd](#systemd)
- [Changelog](#changelog)
- [FAQ](#faq)
- [Related projects](#related-projects)
- [Articles / Tutorials](#articles--tutorials)
- [Thanks](#thanks)
- [Examples](#examples)
- [Bridge mattermost (off-topic) - irc (#testing)](#bridge-mattermost-off-topic---irc-testing)
- [Bridge slack (#general) - discord (general)](#bridge-slack-general---discord-general)
- [Running](#running)
- [Docker](#docker)
- [Systemd](#systemd)
- [Changelog](#changelog)
- [FAQ](#faq)
- [Related projects](#related-projects)
- [Articles / Tutorials](#articles--tutorials)
- [Thanks](#thanks)
## Features
@ -89,6 +90,7 @@ And more...
- [Discord](https://discordapp.com)
- [Gitter](https://gitter.im)
- [Harmony](https://harmonyapp.io)
- [IRC](http://www.mirc.com/servers.html)
- [Keybase](https://keybase.io)
- [Matrix](https://matrix.org)
@ -105,6 +107,8 @@ And more...
- [Twitch](https://twitch.tv)
- [VK](https://vk.com/)
- [WhatsApp](https://www.whatsapp.com/)
- Whatsapp legacy is natively supported
- Whatsapp multidevice beta is natively supported but you need to build yourself, see [here](#building-with-whatsapp-beta-multidevice-support)
- [XMPP](https://xmpp.org)
- [Zulip](https://zulipchat.com)
@ -120,6 +124,8 @@ And more...
- [Counter-Strike, half-life and more](https://forums.alliedmods.net/showthread.php?t=319430)
- [MatterAMXX](https://github.com/GabeIggy/MatterAMXX)
- [Vintage Story](https://github.com/NikkyAI/vs-matterbridge)
- [Ultima Online Emulator](https://github.com/kuoushi/ServUO-Matterbridge)
- [Teamspeak](https://github.com/Archeb/ts-matterbridge)
### API
@ -138,6 +144,8 @@ Used by the projects below. Feel free to make a PR to add your project to this l
- [matterbabble](https://github.com/DeclanHoare/matterbabble) (Discourse support)
- [MatterAMXX](https://forums.alliedmods.net/showthread.php?t=319430) (Counter-Strike, half-life and more via AMXX mod)
- [Vintage Story](https://github.com/NikkyAI/vs-matterbridge)
- [ServUO-matterbridge](https://github.com/kuoushi/ServUO-Matterbridge) (A matterbridge connector for ServUO servers)
- [ts-matterbridge](https://github.com/Archeb/ts-matterbridge) (Integrate teamspeak chat with matterbridge)
## Chat with us
@ -164,10 +172,10 @@ See <https://github.com/42wim/matterbridge/wiki>
### Binaries
- Latest stable release [v1.24.0](https://github.com/42wim/matterbridge/releases/latest)
- Latest stable release [v1.24.1](https://github.com/42wim/matterbridge/releases/latest)
- Development releases (follows master) can be downloaded [here](https://github.com/42wim/matterbridge/actions) selecting the latest green build and then artifacts.
To install or upgrade just download the latest [binary](https://github.com/42wim/matterbridge/releases/latest). On \*nix platforms you may need to make the binary executable - you can do this by running `chmod a+x` on the binary (example: `chmod a+x matterbridge-1.20.0-linux-64bit`). After downloading (and making the binary executable, if necessary), follow the instructions on the [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) for a step by step walkthrough for creating your configuration.
To install or upgrade just download the latest [binary](https://github.com/42wim/matterbridge/releases/latest). On \*nix platforms you may need to make the binary executable - you can do this by running `chmod a+x` on the binary (example: `chmod a+x matterbridge-1.24.1-linux-64bit`). After downloading (and making the binary executable, if necessary), follow the instructions on the [howto](https://github.com/42wim/matterbridge/wiki/How-to-create-your-config) for a step by step walkthrough for creating your configuration.
### Packages
@ -182,10 +190,13 @@ Most people just want to use binaries, you can find those [here](https://github.
If you really want to build from source, follow these instructions:
Go 1.17+ is required. Make sure you have [Go](https://golang.org/doc/install) properly installed.
Building the binary with **all** the bridges enabled needs about 3GB RAM to compile.
You can reduce this memory requirement to 0,5GB RAM by adding the `nomsteams` tag if you don't need/use the Microsoft Teams bridge
To install the latest stable run:
```bash
go install github.com/42wim/matterbridge
go install github.com/42wim/matterbridge@17da95b094e4bb433e5fe240fa42067d94d908c1
```
To install the latest dev run:
@ -194,6 +205,36 @@ To install the latest dev run:
go install github.com/42wim/matterbridge@master
```
To install the latest stable run without msteams or zulip bridge:
```bash
go install -tags nomsteams,nozulip github.com/42wim/matterbridge@17da95b094e4bb433e5fe240fa42067d94d908c1
```
You should now have matterbridge binary in the ~/go/bin directory:
```bash
$ ls ~/go/bin/
matterbridge
```
## Building with whatsapp (beta) multidevice support
Because the library we use for Whatsapp multidevice support includes a GPL3 library we can not provide you binaries.
(as this would require the Matterbridge to change it license to GPL)
So this means you have to build it yourself using the instructions below:
```bash
go install -tags whatsappmulti github.com/42wim/matterbridge@master
```
If you're low on memory and don't need msteams:
```bash
go install -tags nomsteams,whatsappmulti github.com/42wim/matterbridge@master
```
You should now have matterbridge binary in the ~/go/bin directory:
```bash
@ -323,6 +364,8 @@ See [FAQ](https://github.com/42wim/matterbridge/wiki/FAQ)
- [nextcloud talk](https://github.com/nextcloud/talk_matterbridge) (Integrates matterbridge in Nextcloud Talk)
- [mattercraft](https://github.com/raws/mattercraft) (Minecraft bridge)
- [vs-matterbridge](https://github.com/NikkyAI/vs-matterbridge) (Vintage Story bridge)
- [ServUO-matterbridge](https://github.com/kuoushi/ServUO-Matterbridge) (A matterbridge connector for ServUO servers)
- [ts-matterbridge](https://github.com/Archeb/ts-matterbridge) (Integrate teamspeak chat with matterbridge)
## Articles / Tutorials
@ -356,6 +399,7 @@ Matterbridge wouldn't exist without these libraries:
- gops - <https://github.com/google/gops>
- gozulipbot - <https://github.com/ifo/gozulipbot>
- gumble - <https://github.com/layeh/gumble>
- harmony - <https://github.com/harmony-development/shibshib>
- irc - <https://github.com/lrstanley/girc>
- keybase - <https://github.com/keybase/go-keybase-chat-bot>
- matrix - <https://github.com/matrix-org/gomatrix>
@ -363,6 +407,7 @@ Matterbridge wouldn't exist without these libraries:
- msgraph.go - <https://github.com/yaegashi/msgraph.go>
- mumble - <https://github.com/layeh/gumble>
- nctalk - <https://github.com/gary-kim/go-nc-talk>
- rocketchat - <https://github.com/RocketChat/Rocket.Chat.Go.SDK>
- slack - <https://github.com/nlopes/slack>
- sshchat - <https://github.com/shazow/ssh-chat>
- steam - <https://github.com/Philipp15b/go-steam>
@ -370,6 +415,7 @@ Matterbridge wouldn't exist without these libraries:
- tengo - <https://github.com/d5/tengo>
- vk - <https://github.com/SevereCloud/vksdk>
- whatsapp - <https://github.com/Rhymen/go-whatsapp>
- whatsapp - <https://github.com/tulir/whatsmeow>
- xmpp - <https://github.com/mattn/go-xmpp>
- zulip - <https://github.com/ifo/gozulipbot>

32
bridge/irc/charset.go Normal file
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@ -0,0 +1,32 @@
package birc
import (
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/japanese"
"golang.org/x/text/encoding/korean"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/encoding/traditionalchinese"
"golang.org/x/text/encoding/unicode"
)
var encoders = map[string]encoding.Encoding{
"utf-8": unicode.UTF8,
"iso-2022-jp": japanese.ISO2022JP,
"big5": traditionalchinese.Big5,
"gbk": simplifiedchinese.GBK,
"euc-kr": korean.EUCKR,
"gb2312": simplifiedchinese.HZGB2312,
"shift-jis": japanese.ShiftJIS,
"euc-jp": japanese.EUCJP,
"gb18030": simplifiedchinese.GB18030,
}
func toUTF8(from string, input string) string {
enc, ok := encoders[from]
if !ok {
return input
}
res, _ := enc.NewDecoder().String(input)
return res
}

7
bridge/irc/handlers.go
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@ -11,7 +11,6 @@ import (
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
"github.com/lrstanley/girc"
"github.com/missdeer/golib/ic"
"github.com/paulrosania/go-charset/charset"
"github.com/saintfish/chardet"
@ -24,12 +23,12 @@ func (b *Birc) handleCharset(msg *config.Message) error {
if b.GetString("Charset") != "" {
switch b.GetString("Charset") {
case "gbk", "gb18030", "gb2312", "big5", "euc-kr", "euc-jp", "shift-jis", "iso-2022-jp":
msg.Text = ic.ConvertString("utf-8", b.GetString("Charset"), msg.Text)
msg.Text = toUTF8(b.GetString("Charset"), msg.Text)
default:
buf := new(bytes.Buffer)
w, err := charset.NewWriter(b.GetString("Charset"), buf)
if err != nil {
b.Log.Errorf("charset from utf-8 conversion failed: %s", err)
b.Log.Errorf("charset to utf-8 conversion failed: %s", err)
return err
}
fmt.Fprint(w, msg.Text)
@ -227,7 +226,7 @@ func (b *Birc) handlePrivMsg(client *girc.Client, event girc.Event) {
}
switch mycharset {
case "gbk", "gb18030", "gb2312", "big5", "euc-kr", "euc-jp", "shift-jis", "iso-2022-jp":
rmsg.Text = ic.ConvertString("utf-8", b.GetString("Charset"), rmsg.Text)
rmsg.Text = toUTF8(b.GetString("Charset"), rmsg.Text)
default:
r, err := charset.NewReader(mycharset, strings.NewReader(rmsg.Text))
if err != nil {

2
bridge/matrix/helpers.go
View File

@ -8,7 +8,7 @@ import (
"strings"
"time"
matrix "github.com/matrix-org/gomatrix"
matrix "github.com/matterbridge/gomatrix"
)
func newMatrixUsername(username string) *matrixUsername {

2
bridge/matrix/matrix.go
View File

@ -12,7 +12,7 @@ import (
"github.com/42wim/matterbridge/bridge"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
matrix "github.com/matrix-org/gomatrix"
matrix "github.com/matterbridge/gomatrix"
)
var (

70
bridge/mumble/codec.go Normal file
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@ -0,0 +1,70 @@
package bmumble
import (
"fmt"
"layeh.com/gumble/gumble"
)
// This is a dummy implementation of a Gumble audio codec which claims
// to implement Opus, but does not actually do anything. This serves
// as a workaround until https://github.com/layeh/gumble/pull/61 is
// merged.
// See https://github.com/42wim/matterbridge/issues/1750 for details.
const (
audioCodecIDOpus = 4
)
func registerNullCodecAsOpus() {
codec := &NullCodec{
encoder: &NullAudioEncoder{},
decoder: &NullAudioDecoder{},
}
gumble.RegisterAudioCodec(audioCodecIDOpus, codec)
}
type NullCodec struct {
encoder *NullAudioEncoder
decoder *NullAudioDecoder
}
func (c *NullCodec) ID() int {
return audioCodecIDOpus
}
func (c *NullCodec) NewEncoder() gumble.AudioEncoder {
e := &NullAudioEncoder{}
return e
}
func (c *NullCodec) NewDecoder() gumble.AudioDecoder {
d := &NullAudioDecoder{}
return d
}
type NullAudioEncoder struct{}
func (e *NullAudioEncoder) ID() int {
return audioCodecIDOpus
}
func (e *NullAudioEncoder) Encode(pcm []int16, mframeSize, maxDataBytes int) ([]byte, error) {
return nil, fmt.Errorf("not implemented")
}
func (e *NullAudioEncoder) Reset() {
}
type NullAudioDecoder struct{}
func (d *NullAudioDecoder) ID() int {
return audioCodecIDOpus
}
func (d *NullAudioDecoder) Decode(data []byte, frameSize int) ([]int16, error) {
return nil, fmt.Errorf("not implemented")
}
func (d *NullAudioDecoder) Reset() {
}

1
bridge/mumble/mumble.go
View File

@ -185,6 +185,7 @@ func (b *Bmumble) doConnect() error {
gumbleConfig.Password = password
}
registerNullCodecAsOpus()
client, err := gumble.DialWithDialer(new(net.Dialer), b.GetString("Server"), gumbleConfig, &b.tlsConfig)
if err != nil {
return err

45
bridge/telegram/handlers.go
View File

@ -71,6 +71,9 @@ func (b *Btelegram) handleForwarded(rmsg *config.Message, message *tgbotapi.Mess
if b.GetBool("UseFirstName") {
usernameForward = message.ForwardFrom.FirstName
}
if b.GetBool("UseFullName") {
usernameForward = message.ForwardFrom.FirstName + " " + message.ForwardFrom.LastName
}
if usernameForward == "" {
usernameForward = message.ForwardFrom.UserName
@ -94,6 +97,9 @@ func (b *Btelegram) handleQuoting(rmsg *config.Message, message *tgbotapi.Messag
if b.GetBool("UseFirstName") {
usernameReply = message.ReplyToMessage.From.FirstName
}
if b.GetBool("UseFullName") {
usernameReply = message.ReplyToMessage.From.FirstName + " " + message.ReplyToMessage.From.LastName
}
if usernameReply == "" {
usernameReply = message.ReplyToMessage.From.UserName
if usernameReply == "" {
@ -117,6 +123,9 @@ func (b *Btelegram) handleUsername(rmsg *config.Message, message *tgbotapi.Messa
if b.GetBool("UseFirstName") {
rmsg.Username = message.From.FirstName
}
if b.GetBool("UseFullName") {
rmsg.Username = message.From.FirstName + " " + message.From.LastName
}
if rmsg.Username == "" {
rmsg.Username = message.From.UserName
if rmsg.Username == "" {
@ -134,6 +143,9 @@ func (b *Btelegram) handleUsername(rmsg *config.Message, message *tgbotapi.Messa
if b.GetBool("UseFirstName") {
rmsg.Username = message.SenderChat.FirstName
}
if b.GetBool("UseFullName") {
rmsg.Username = message.SenderChat.FirstName + " " + message.SenderChat.LastName
}
if rmsg.Username == "" || rmsg.Username == "Channel_Bot" {
rmsg.Username = message.SenderChat.UserName
@ -187,6 +199,14 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
rmsg.ID = strconv.Itoa(message.MessageID)
rmsg.Channel = strconv.FormatInt(message.Chat.ID, 10)
// preserve threading from telegram reply
if message.ReplyToMessage != nil {
rmsg.ParentID = strconv.Itoa(message.ReplyToMessage.MessageID)
}
// handle entities (adding URLs)
b.handleEntities(&rmsg, message)
// handle username
b.handleUsername(&rmsg, message)
@ -202,9 +222,6 @@ func (b *Btelegram) handleRecv(updates <-chan tgbotapi.Update) {
// quote the previous message
b.handleQuoting(&rmsg, message)
// handle entities (adding URLs)
b.handleEntities(&rmsg, message)
if rmsg.Text != "" || len(rmsg.Extra) > 0 {
// Comment the next line out due to avoid removing empty lines in Telegram
// rmsg.Text = helper.RemoveEmptyNewLines(rmsg.Text)
@ -489,46 +506,50 @@ func (b *Btelegram) handleEntities(rmsg *config.Message, message *tgbotapi.Messa
// for now only do URL replacements
for _, e := range message.Entities {
asRunes := utf16.Encode([]rune(rmsg.Text))
if e.Type == "text_link" {
offset := e.Offset + indexMovedBy
url, err := e.ParseURL()
if err != nil {
b.Log.Errorf("entity text_link url parse failed: %s", err)
continue
}
utfEncodedString := utf16.Encode([]rune(rmsg.Text))
if e.Offset+e.Length > len(utfEncodedString) {
b.Log.Errorf("entity length is too long %d > %d", e.Offset+e.Length, len(utfEncodedString))
if offset+e.Length > len(utfEncodedString) {
b.Log.Errorf("entity length is too long %d > %d", offset+e.Length, len(utfEncodedString))
continue
}
link := utf16.Decode(utfEncodedString[e.Offset : e.Offset+e.Length])
rmsg.Text = strings.Replace(rmsg.Text, string(link), url.String(), 1)
rmsg.Text = string(utf16.Decode(asRunes[:offset+e.Length])) + " (" + url.String() + ")" + string(utf16.Decode(asRunes[offset+e.Length:]))
indexMovedBy += len(url.String()) + 3
}
if e.Type == "code" {
offset := e.Offset + indexMovedBy
rmsg.Text = rmsg.Text[:offset] + "`" + rmsg.Text[offset:offset+e.Length] + "`" + rmsg.Text[offset+e.Length:]
rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "`" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "`" + string(utf16.Decode(asRunes[offset+e.Length:]))
indexMovedBy += 2
}
if e.Type == "pre" {
offset := e.Offset + indexMovedBy
rmsg.Text = rmsg.Text[:offset] + "```\n" + rmsg.Text[offset:offset+e.Length] + "\n```" + rmsg.Text[offset+e.Length:]
rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "```\n" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "```\n" + string(utf16.Decode(asRunes[offset+e.Length:]))
indexMovedBy += 8
}
if e.Type == "bold" {
offset := e.Offset + indexMovedBy
rmsg.Text = rmsg.Text[:offset] + "*" + rmsg.Text[offset:offset+e.Length] + "*" + rmsg.Text[offset+e.Length:]
rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "*" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "*" + string(utf16.Decode(asRunes[offset+e.Length:]))
indexMovedBy += 2
}
if e.Type == "italic" {
offset := e.Offset + indexMovedBy
rmsg.Text = rmsg.Text[:offset] + "_" + rmsg.Text[offset:offset+e.Length] + "_" + rmsg.Text[offset+e.Length:]
rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "_" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "_" + string(utf16.Decode(asRunes[offset+e.Length:]))
indexMovedBy += 2
}
if e.Type == "strike" {
offset := e.Offset + indexMovedBy
rmsg.Text = rmsg.Text[:offset] + "~" + rmsg.Text[offset:offset+e.Length] + "~" + rmsg.Text[offset+e.Length:]
rmsg.Text = string(utf16.Decode(asRunes[:offset])) + "~" + string(utf16.Decode(asRunes[offset:offset+e.Length])) + "~" + string(utf16.Decode(asRunes[offset+e.Length:]))
indexMovedBy += 2
}
}

21
bridge/telegram/telegram.go
View File

@ -1,6 +1,7 @@
package btelegram
import (
"fmt"
"html"
"log"
"strconv"
@ -108,10 +109,16 @@ func (b *Btelegram) Send(msg config.Message) (string, error) {
return b.handleDelete(&msg, chatid)
}
// Handle prefix hint for unthreaded messages.
if msg.ParentNotFound() {
msg.ParentID = ""
msg.Text = fmt.Sprintf("[reply]: %s", msg.Text)
}
// Upload a file if it exists
if msg.Extra != nil {
for _, rmsg := range helper.HandleExtra(&msg, b.General) {
if _, msgErr := b.sendMessage(chatid, rmsg.Username, rmsg.Text); msgErr != nil {
if _, msgErr := b.sendMessage(chatid, rmsg.Username, rmsg.Text, msg.ParentID); msgErr != nil {
b.Log.Errorf("sendMessage failed: %s", msgErr)
}
}
@ -131,7 +138,7 @@ func (b *Btelegram) Send(msg config.Message) (string, error) {
// Ignore empty text field needs for prevent double messages from whatsapp to telegram
// when sending media with text caption
if msg.Text != "" {
return b.sendMessage(chatid, msg.Username, msg.Text)
return b.sendMessage(chatid, msg.Username, msg.Text, msg.ParentID)
}
return "", nil
@ -145,10 +152,16 @@ func (b *Btelegram) getFileDirectURL(id string) string {
return res
}
func (b *Btelegram) sendMessage(chatid int64, username, text string) (string, error) {
func (b *Btelegram) sendMessage(chatid int64, username, text, parentID string) (string, error) {
m := tgbotapi.NewMessage(chatid, "")
m.Text, m.ParseMode = TGGetParseMode(b, username, text)
if parentID != "" {
rmid, err := strconv.Atoi(parentID)
if err != nil {
return "", err
}
m.ReplyToMessageID = rmid
}
m.DisableWebPagePreview = b.GetBool("DisableWebPagePreview")
res, err := b.c.Send(m)

2
bridge/whatsapp/handlers.go
View File

@ -1,3 +1,4 @@
// nolint:goconst
package bwhatsapp
import (
@ -134,6 +135,7 @@ func (b *Bwhatsapp) HandleTextMessage(message whatsapp.TextMessage) {
}
// HandleImageMessage sent from WhatsApp, relay it to the brige
// nolint:funlen
func (b *Bwhatsapp) HandleImageMessage(message whatsapp.ImageMessage) {
if message.Info.FromMe || message.Info.Timestamp < b.startedAt {
return

3
bridge/whatsapp/helpers.go
View File

@ -111,8 +111,7 @@ func (b *Bwhatsapp) getSenderName(senderJid string) string {
}
// try to reload this contact
_, err := b.conn.Contacts()
if err != nil {
if _, err := b.conn.Contacts(); err != nil {
b.Log.Errorf("error on update of contacts: %v", err)
}

344
bridge/whatsappmulti/handlers.go Normal file
View File

@ -0,0 +1,344 @@
// +build whatsappmulti
package bwhatsapp
import (
"fmt"
"mime"
"strings"
"github.com/42wim/matterbridge/bridge/config"
"github.com/42wim/matterbridge/bridge/helper"
"go.mau.fi/whatsmeow/binary/proto"
"go.mau.fi/whatsmeow/types"
"go.mau.fi/whatsmeow/types/events"
)
// nolint:gocritic
func (b *Bwhatsapp) eventHandler(evt interface{}) {
switch e := evt.(type) {
case *events.Message:
b.handleMessage(e)
}
}
func (b *Bwhatsapp) handleMessage(message *events.Message) {
msg := message.Message
switch {
case msg == nil, message.Info.IsFromMe, message.Info.Timestamp.Before(b.startedAt):
return
}
b.Log.Infof("Receiving message %#v", msg)
switch {
case msg.Conversation != nil || msg.ExtendedTextMessage != nil:
b.handleTextMessage(message.Info, msg)
case msg.VideoMessage != nil:
b.handleVideoMessage(message)
case msg.AudioMessage != nil:
b.handleAudioMessage(message)
case msg.DocumentMessage != nil:
b.handleDocumentMessage(message)
case msg.ImageMessage != nil:
b.handleImageMessage(message)
}
}
// nolint:funlen
func (b *Bwhatsapp) handleTextMessage(messageInfo types.MessageInfo, msg *proto.Message) {
senderJID := messageInfo.Sender
channel := messageInfo.Chat
senderName := b.getSenderName(messageInfo.Sender)
if senderName == "" {
senderName = "Someone" // don't expose telephone number
}
if msg.GetExtendedTextMessage() == nil && msg.GetConversation() == "" {
b.Log.Debugf("message without text content? %#v", msg)
return
}
var text string
// nolint:nestif
if msg.GetExtendedTextMessage() == nil {
text = msg.GetConversation()
} else {
text = msg.GetExtendedTextMessage().GetText()
ci := msg.GetExtendedTextMessage().GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
if ci.MentionedJid != nil {
// handle user mentions
for _, mentionedJID := range ci.MentionedJid {
numberAndSuffix := strings.SplitN(mentionedJID, "@", 2)
// mentions comes as telephone numbers and we don't want to expose it to other bridges
// replace it with something more meaninful to others
mention := b.getSenderNotify(types.NewJID(numberAndSuffix[0], types.DefaultUserServer))
if mention == "" {
mention = "someone"
}
text = strings.Replace(text, "@"+numberAndSuffix[0], "@"+mention, 1)
}
}
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Text: text,
Channel: channel.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
// ParentID: TODO, // TODO handle thread replies // map from Info.QuotedMessageID string
ID: messageInfo.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleImageMessage sent from WhatsApp, relay it to the brige
func (b *Bwhatsapp) handleImageMessage(msg *events.Message) {
imsg := msg.Message.GetImageMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
// rename .jfif to .jpg https://github.com/42wim/matterbridge/issues/1292
if fileExt[0] == ".jfif" {
fileExt[0] = ".jpg"
}
// rename .jpe to .jpg https://github.com/42wim/matterbridge/issues/1463
if fileExt[0] == ".jpe" {
fileExt[0] = ".jpg"
}
filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
b.Log.Debugf("Trying to download %s with type %s", filename, imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download image failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, imsg.GetCaption(), "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleVideoMessage downloads video messages
func (b *Bwhatsapp) handleVideoMessage(msg *events.Message) {
imsg := msg.Message.GetVideoMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
if len(fileExt) == 0 {
fileExt = append(fileExt, ".mp4")
}
filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, imsg.GetFileLength(), imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download video failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, imsg.GetCaption(), "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleAudioMessage downloads audio messages
func (b *Bwhatsapp) handleAudioMessage(msg *events.Message) {
imsg := msg.Message.GetAudioMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
if len(fileExt) == 0 {
fileExt = append(fileExt, ".ogg")
}
filename := fmt.Sprintf("%v%v", msg.Info.ID, fileExt[0])
b.Log.Debugf("Trying to download %s with size %#v and type %s", filename, imsg.GetFileLength(), imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download video failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, "audio message", "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}
// HandleDocumentMessage downloads documents
func (b *Bwhatsapp) handleDocumentMessage(msg *events.Message) {
imsg := msg.Message.GetDocumentMessage()
senderJID := msg.Info.Sender
senderName := b.getSenderName(senderJID)
ci := imsg.GetContextInfo()
if senderJID == (types.JID{}) && ci.Participant != nil {
senderJID = types.NewJID(ci.GetParticipant(), types.DefaultUserServer)
}
rmsg := config.Message{
UserID: senderJID.String(),
Username: senderName,
Channel: msg.Info.Chat.String(),
Account: b.Account,
Protocol: b.Protocol,
Extra: make(map[string][]interface{}),
ID: msg.Info.ID,
}
if avatarURL, exists := b.userAvatars[senderJID.String()]; exists {
rmsg.Avatar = avatarURL
}
fileExt, err := mime.ExtensionsByType(imsg.GetMimetype())
if err != nil {
b.Log.Errorf("Mimetype detection error: %s", err)
return
}
filename := fmt.Sprintf("%v", imsg.GetFileName())
b.Log.Debugf("Trying to download %s with extension %s and type %s", filename, fileExt, imsg.GetMimetype())
data, err := b.wc.Download(imsg)
if err != nil {
b.Log.Errorf("Download document message failed: %s", err)
return
}
// Move file to bridge storage
helper.HandleDownloadData(b.Log, &rmsg, filename, "document", "", &data, b.General)
b.Log.Debugf("<= Sending message from %s on %s to gateway", senderJID, b.Account)
b.Log.Debugf("<= Message is %#v", rmsg)
b.Remote <- rmsg
}

108
bridge/whatsappmulti/helpers.go Normal file
View File

@ -0,0 +1,108 @@
// +build whatsappmulti
package bwhatsapp
import (
"fmt"
"strings"
"go.mau.fi/whatsmeow/store"
"go.mau.fi/whatsmeow/store/sqlstore"
"go.mau.fi/whatsmeow/types"
)
type ProfilePicInfo struct {
URL string `json:"eurl"`
Tag string `json:"tag"`
Status int16 `json:"status"`
}
func (b *Bwhatsapp) getSenderName(senderJid types.JID) string {
if sender, exists := b.contacts[senderJid]; exists {
if sender.FullName != "" {
return sender.FullName
}
// if user is not in phone contacts
// it is the most obvious scenario unless you sync your phone contacts with some remote updated source
// users can change it in their WhatsApp settings -> profile -> click on Avatar
if sender.PushName != "" {
return sender.PushName
}
if sender.FirstName != "" {
return sender.FirstName
}
}
// try to reload this contact
if _, err := b.wc.Store.Contacts.GetAllContacts(); err != nil {
b.Log.Errorf("error on update of contacts: %v", err)
}
allcontacts, err := b.wc.Store.Contacts.GetAllContacts()
if err != nil {
b.Log.Errorf("error on update of contacts: %v", err)
}
if len(allcontacts) > 0 {
b.contacts = allcontacts
}
if sender, exists := b.contacts[senderJid]; exists {
if sender.FullName != "" {
return sender.FullName
}
// if user is not in phone contacts
// it is the most obvious scenario unless you sync your phone contacts with some remote updated source
// users can change it in their WhatsApp settings -> profile -> click on Avatar
if sender.PushName != "" {
return sender.PushName
}
if sender.FirstName != "" {
return sender.FirstName
}
}
return "Someone"
}
func (b *Bwhatsapp) getSenderNotify(senderJid types.JID) string {
if sender, exists := b.contacts[senderJid]; exists {
return sender.PushName
}
return ""
}
func (b *Bwhatsapp) GetProfilePicThumb(jid string) (*types.ProfilePictureInfo, error) {
pjid, _ := types.ParseJID(jid)
info, err := b.wc.GetProfilePictureInfo(pjid, true)
if err != nil {
return nil, fmt.Errorf("failed to get avatar: %v", err)
}
return info, nil
}
func isGroupJid(identifier string) bool {
return strings.HasSuffix(identifier, "@g.us") ||
strings.HasSuffix(identifier, "@temp") ||
strings.HasSuffix(identifier, "@broadcast")
}
func (b *Bwhatsapp) getDevice() (*store.Device, error) {
device := &store.Device{}
storeContainer, err := sqlstore.New("sqlite", "file:"+b.Config.GetString("sessionfile")+".db?_foreign_keys=on&_pragma=busy_timeout=10000", nil)
if err != nil {
return device, fmt.Errorf("failed to connect to database: %v", err)
}
device, err = storeContainer.GetFirstDevice()
if err != nil {
return device, fmt.Errorf("failed to get device: %v", err)
}
return device, nil
}

333
bridge/whatsappmulti/whatsapp.go Normal file
View File

@ -0,0 +1,333 @@
// +build whatsappmulti
package bwhatsapp
import (
"context"
"errors"
"fmt"
"mime"
"os"
"path/filepath"
"time"
"github.com/42wim/matterbridge/bridge"
"github.com/42wim/matterbridge/bridge/config"
"github.com/mdp/qrterminal"
"go.mau.fi/whatsmeow"
"go.mau.fi/whatsmeow/binary/proto"
"go.mau.fi/whatsmeow/types"
waLog "go.mau.fi/whatsmeow/util/log"
goproto "google.golang.org/protobuf/proto"
_ "modernc.org/sqlite" // needed for sqlite
)
const (
// Account config parameters
cfgNumber = "Number"
)
// Bwhatsapp Bridge structure keeping all the information needed for relying
type Bwhatsapp struct {
*bridge.Config
startedAt time.Time
wc *whatsmeow.Client
contacts map[types.JID]types.ContactInfo
users map[string]types.ContactInfo
userAvatars map[string]string
}
// New Create a new WhatsApp bridge. This will be called for each [whatsapp.<server>] entry you have in the config file
func New(cfg *bridge.Config) bridge.Bridger {
number := cfg.GetString(cfgNumber)
if number == "" {
cfg.Log.Fatalf("Missing configuration for WhatsApp bridge: Number")
}
b := &Bwhatsapp{
Config: cfg,
users: make(map[string]types.ContactInfo),
userAvatars: make(map[string]string),
}
return b
}
// Connect to WhatsApp. Required implementation of the Bridger interface
func (b *Bwhatsapp) Connect() error {
device, err := b.getDevice()
if err != nil {
return err
}
number := b.GetString(cfgNumber)
if number == "" {
return errors.New("whatsapp's telephone number need to be configured")
}
b.Log.Debugln("Connecting to WhatsApp..")
b.wc = whatsmeow.NewClient(device, waLog.Stdout("Client", "INFO", true))
b.wc.AddEventHandler(b.eventHandler)
firstlogin := false
var qrChan <-chan whatsmeow.QRChannelItem
if b.wc.Store.ID == nil {
firstlogin = true
qrChan, err = b.wc.GetQRChannel(context.Background())
if err != nil && !errors.Is(err, whatsmeow.ErrQRStoreContainsID) {
return errors.New("failed to to get QR channel:" + err.Error())
}
}
err = b.wc.Connect()
if err != nil {
return errors.New("failed to connect to WhatsApp: " + err.Error())
}
if b.wc.Store.ID == nil {
for evt := range qrChan {
if evt.Event == "code" {
qrterminal.GenerateHalfBlock(evt.Code, qrterminal.L, os.Stdout)
} else {
b.Log.Infof("QR channel result: %s", evt.Event)
}
}
}
// disconnect and reconnect on our first login/pairing
// for some reason the GetJoinedGroups in JoinChannel doesn't work on first login
if firstlogin {
b.wc.Disconnect()
time.Sleep(time.Second)
err = b.wc.Connect()
if err != nil {
return errors.New("failed to connect to WhatsApp: " + err.Error())
}
}
b.Log.Infoln("WhatsApp connection successful")
b.contacts, err = b.wc.Store.Contacts.GetAllContacts()
if err != nil {
return errors.New("failed to get contacts: " + err.Error())
}
b.startedAt = time.Now()
// map all the users
for id, contact := range b.contacts {
if !isGroupJid(id.String()) && id.String() != "status@broadcast" {
// it is user
b.users[id.String()] = contact
}
}
// get user avatar asynchronously
b.Log.Info("Getting user avatars..")
for jid := range b.users {
info, err := b.GetProfilePicThumb(jid)
if err != nil {
b.Log.Warnf("Could not get profile photo of %s: %v", jid, err)
} else {
b.Lock()
if info != nil {
b.userAvatars[jid] = info.URL
}
b.Unlock()
}
}
b.Log.Info("Finished getting avatars..")
return nil
}
// Disconnect is called while reconnecting to the bridge
// Required implementation of the Bridger interface
func (b *Bwhatsapp) Disconnect() error {
b.wc.Disconnect()
return nil
}
// JoinChannel Join a WhatsApp group specified in gateway config as channel='number-id@g.us' or channel='Channel name'
// Required implementation of the Bridger interface
// https://github.com/42wim/matterbridge/blob/2cfd880cdb0df29771bf8f31df8d990ab897889d/bridge/bridge.go#L11-L16
func (b *Bwhatsapp) JoinChannel(channel config.ChannelInfo) error {
byJid := isGroupJid(channel.Name)
groups, err := b.wc.GetJoinedGroups()
if err != nil {
return err
}
// verify if we are member of the given group
if byJid {
gJID, err := types.ParseJID(channel.Name)
if err != nil {
return err
}
for _, group := range groups {
if group.JID == gJID {
return nil
}
}
}
foundGroups := []string{}
for _, group := range groups {
if group.Name == channel.Name {
foundGroups = append(foundGroups, group.Name)
}
}
switch len(foundGroups) {
case 0:
// didn't match any group - print out possibilites
for _, group := range groups {
b.Log.Infof("%s %s", group.JID, group.Name)
}
return fmt.Errorf("please specify group's JID from the list above instead of the name '%s'", channel.Name)
case 1:
return fmt.Errorf("group name might change. Please configure gateway with channel=\"%v\" instead of channel=\"%v\"", foundGroups[0], channel.Name)
default:
return fmt.Errorf("there is more than one group with name '%s'. Please specify one of JIDs as channel name: %v", channel.Name, foundGroups)
}
}
// Post a document message from the bridge to WhatsApp
func (b *Bwhatsapp) PostDocumentMessage(msg config.Message, filetype string) (string, error) {
groupJID, _ := types.ParseJID(msg.Channel)
fi := msg.Extra["file"][0].(config.FileInfo)
resp, err := b.wc.Upload(context.Background(), *fi.Data, whatsmeow.MediaDocument)
if err != nil {
return "", err
}
// Post document message
var message proto.Message
message.DocumentMessage = &proto.DocumentMessage{
Title: &fi.Name,
FileName: &fi.Name,
Mimetype: &filetype,
MediaKey: resp.MediaKey,
FileEncSha256: resp.FileEncSHA256,
FileSha256: resp.FileSHA256,
FileLength: goproto.Uint64(resp.FileLength),
Url: &resp.URL,
}
b.Log.Debugf("=> Sending %#v", msg)
ID := whatsmeow.GenerateMessageID()
_, err = b.wc.SendMessage(groupJID, ID, &message)
return ID, err
}
// Post an image message from the bridge to WhatsApp
// Handle, for sure image/jpeg, image/png and image/gif MIME types
func (b *Bwhatsapp) PostImageMessage(msg config.Message, filetype string) (string, error) {
groupJID, _ := types.ParseJID(msg.Channel)
fi := msg.Extra["file"][0].(config.FileInfo)
caption := msg.Username + fi.Comment
resp, err := b.wc.Upload(context.Background(), *fi.Data, whatsmeow.MediaImage)
if err != nil {
return "", err
}
var message proto.Message
message.ImageMessage = &proto.ImageMessage{
Mimetype: &filetype,
Caption: &caption,
MediaKey: resp.MediaKey,
FileEncSha256: resp.FileEncSHA256,
FileSha256: resp.FileSHA256,
FileLength: goproto.Uint64(resp.FileLength),
Url: &resp.URL,
}
b.Log.Debugf("=> Sending %#v", msg)
ID := whatsmeow.GenerateMessageID()
_, err = b.wc.SendMessage(groupJID, ID, &message)
return ID, err
}
// Send a message from the bridge to WhatsApp
func (b *Bwhatsapp) Send(msg config.Message) (string, error) {
groupJID, _ := types.ParseJID(msg.Channel)
b.Log.Debugf("=> Receiving %#v", msg)
// Delete message
if msg.Event == config.EventMsgDelete {
if msg.ID == "" {
// No message ID in case action is executed on a message sent before the bridge was started
// and then the bridge cache doesn't have this message ID mapped
return "", nil
}
_, err := b.wc.RevokeMessage(groupJID, msg.ID)
return "", err
}
// Edit message
if msg.ID != "" {
b.Log.Debugf("updating message with id %s", msg.ID)
if b.GetString("editsuffix") != "" {
msg.Text += b.GetString("EditSuffix")
} else {
msg.Text += " (edited)"
}
}
// Handle Upload a file
if msg.Extra["file"] != nil {
fi := msg.Extra["file"][0].(config.FileInfo)
filetype := mime.TypeByExtension(filepath.Ext(fi.Name))
b.Log.Debugf("Extra file is %#v", filetype)
// TODO: add different types
// TODO: add webp conversion
switch filetype {
case "image/jpeg", "image/png", "image/gif":
return b.PostImageMessage(msg, filetype)
default:
return b.PostDocumentMessage(msg, filetype)
}
}
text := msg.Username + msg.Text
var message proto.Message
message.Conversation = &text
ID := whatsmeow.GenerateMessageID()
_, err := b.wc.SendMessage(groupJID, ID, &message)
return ID, err
}

30
changelog.md
View File

@ -1,3 +1,24 @@
# v1.24.1
## Enhancements
- discord: Switch to discordgo upstream again (#1759)
- general: Update dependencies and vendor (#1761)
- general: Create inmessage-logger.tengo (#1688) (#1747)
- general: Add OpenRC service file (#1746)
- irc: Refactor utf-8 conversion (irc) (#1767)
## Bugfixes
- irc: Fix panic in irc. Closes #1751 (#1760)
- mumble: Implement a workaround to signal Opus support (mumble) (#1764)
- telegram: Fix for complex-formatted Telegram text (#1765)
- telegram: Fix Telegram channel title in forwards (#1753)
- telegram: Fix Telegram Problem (unforwarded formatting and skipping of linebreaks) (#1749)
This release couldn't exist without the following contributors:
@s3lph, @ValdikSS, @reckel-jm, @CyberTailor
# v1.24.0
## New features
@ -30,6 +51,9 @@
- matrix: Make HTMLDisable work correct (matrix) (#1716)
- whatsapp: Make EditSuffix option actually work (whatsapp). Fixes #1510 (#1728)
This release couldn't exist without the following contributors:
@DavyJohnesev, @GoliathLabs, @pontaoski, @PeGaSuS-Coder, @dependabot[bot], @vpzomtrrfrt, @SevereCloud, @soloam, @YashRE42, @danwalmsley, @SuperSandro2000, @inzanity
# v1.23.2
If you're running whatsapp you should update.
@ -38,6 +62,9 @@ If you're running whatsapp you should update.
- whatsapp: Update go-whatsapp version (#1630)
This release couldn't exist without the following contributors:
@snikpic
# v1.23.1
If you're running mattermost 6 you should update.
@ -52,6 +79,9 @@ If you're running mattermost 6 you should update.
- xmpp: Use a new msgID when replacing messages (xmpp). Fixes #1584 (#1623)
- zulip: Add better error handling on Zulip (#1589)
This release couldn't exist without the following contributors:
@Polynomdivision, @minecraftchest1, @alexmv
# v1.23.0
## New features

1
gateway/bridgemap/bwhatsapp.go
View File

@ -1,4 +1,5 @@
// +build !nowhatsapp
// +build !whatsappmulti
package bridgemap

11
gateway/bridgemap/bwhatsappmulti.go Normal file
View File

@ -0,0 +1,11 @@
// +build whatsappmulti
package bridgemap
import (
bwhatsapp "github.com/42wim/matterbridge/bridge/whatsappmulti"
)
func init() {
FullMap["whatsapp"] = bwhatsapp.New
}

35
go.mod
View File

@ -22,17 +22,17 @@ require (
github.com/keybase/go-keybase-chat-bot v0.0.0-20211201215354-ee4b23828b55
github.com/kyokomi/emoji/v2 v2.2.9
github.com/labstack/echo/v4 v4.7.0
github.com/lrstanley/girc v0.0.0-20211023233735-147f0ff77566
github.com/matrix-org/gomatrix v0.0.0-20210324163249-be2af5ef2e16
github.com/lrstanley/girc v0.0.0-20220321215535-9664730c7858
github.com/matterbridge/Rocket.Chat.Go.SDK v0.0.0-20211016222428-79310a412696
github.com/matterbridge/go-xmpp v0.0.0-20211030125215-791a06c5f1be
github.com/matterbridge/gomatrix v0.0.0-20220205235239-607eb9ee6419
github.com/matterbridge/gozulipbot v0.0.0-20211023205727-a19d6c1f3b75
github.com/matterbridge/logrus-prefixed-formatter v0.5.3-0.20200523233437-d971309a77ba
github.com/matterbridge/matterclient v0.0.0-20211107234719-faca3cd42315
github.com/mattermost/mattermost-server/v5 v5.39.3
github.com/mattermost/mattermost-server/v6 v6.4.2
github.com/mattn/godown v0.0.1
github.com/missdeer/golib v1.0.4
github.com/mdp/qrterminal v1.0.1
github.com/nelsonken/gomf v0.0.0-20180504123937-a9dd2f9deae9
github.com/paulrosania/go-charset v0.0.0-20190326053356-55c9d7a5834c
github.com/rs/xid v1.3.0
@ -47,14 +47,19 @@ require (
github.com/writeas/go-strip-markdown v2.0.1+incompatible
github.com/yaegashi/msgraph.go v0.1.4
github.com/zfjagann/golang-ring v0.0.0-20210116075443-7c86fdb43134
go.mau.fi/whatsmeow v0.0.0-20220319105109-ee347f8c0a14
golang.org/x/image v0.0.0-20220302094943-723b81ca9867
golang.org/x/oauth2 v0.0.0-20220309155454-6242fa91716a
golang.org/x/text v0.3.7
gomod.garykim.dev/nc-talk v0.3.0
google.golang.org/protobuf v1.27.1
gopkg.in/olahol/melody.v1 v1.0.0-20170518105555-d52139073376
layeh.com/gumble v0.0.0-20200818122324-146f9205029b
modernc.org/sqlite v1.15.2
)
require (
filippo.io/edwards25519 v1.0.0-rc.1 // indirect
github.com/Benau/go_rlottie v0.0.0-20210807002906-98c1b2421989 // indirect
github.com/Jeffail/gabs v1.4.0 // indirect
github.com/apex/log v1.9.0 // indirect
@ -72,6 +77,7 @@ require (
github.com/hashicorp/go-multierror v1.1.1 // indirect
github.com/hashicorp/hcl v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
github.com/kettek/apng v0.0.0-20191108220231-414630eed80f // indirect
github.com/klauspost/compress v1.14.2 // indirect
github.com/klauspost/cpuid/v2 v2.0.9 // indirect
@ -100,12 +106,13 @@ require (
github.com/philhofer/fwd v1.1.1 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
github.com/rickb777/date v1.12.4 // indirect
github.com/rickb777/plural v1.2.0 // indirect
github.com/rivo/uniseg v0.2.0 // indirect
github.com/shazow/rateio v0.0.0-20200113175441-4461efc8bdc4 // indirect
github.com/sizeofint/webpanimation v0.0.0-20210809145948-1d2b32119882 // indirect
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e // indirect
github.com/skip2/go-qrcode v0.0.0-20190110000554-dc11ecdae0a9 // indirect
github.com/spf13/afero v1.6.0 // indirect
github.com/spf13/cast v1.4.1 // indirect
github.com/spf13/jwalterweatherman v1.1.0 // indirect
@ -119,23 +126,35 @@ require (
github.com/wiggin77/cfg v1.0.2 // indirect
github.com/wiggin77/merror v1.0.3 // indirect
github.com/wiggin77/srslog v1.0.1 // indirect
go.mau.fi/libsignal v0.0.0-20220315232917-871a40435d3b // indirect
go.uber.org/atomic v1.9.0 // indirect
go.uber.org/multierr v1.7.0 // indirect
go.uber.org/zap v1.17.0 // indirect
golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871 // indirect
golang.org/x/crypto v0.0.0-20220315160706-3147a52a75dd // indirect
golang.org/x/mod v0.5.1 // indirect
golang.org/x/net v0.0.0-20220127200216-cd36cc0744dd // indirect
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e // indirect
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
golang.org/x/text v0.3.7 // indirect
golang.org/x/time v0.0.0-20201208040808-7e3f01d25324 // indirect
golang.org/x/tools v0.1.7 // indirect
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/protobuf v1.27.1 // indirect
gopkg.in/ini.v1 v1.66.2 // indirect
gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
lukechampine.com/uint128 v1.1.1 // indirect
modernc.org/cc/v3 v3.35.24 // indirect
modernc.org/ccgo/v3 v3.15.17 // indirect
modernc.org/libc v1.14.11 // indirect
modernc.org/mathutil v1.4.1 // indirect
modernc.org/memory v1.0.6 // indirect
modernc.org/opt v0.1.1 // indirect
modernc.org/strutil v1.1.1 // indirect
modernc.org/token v1.0.0 // indirect
rsc.io/qr v0.2.0 // indirect
)
replace github.com/matrix-org/gomatrix => github.com/matterbridge/gomatrix v0.0.0-20220205235239-607eb9ee6419
//replace github.com/matrix-org/gomatrix => github.com/matterbridge/gomatrix v0.0.0-20220205235239-607eb9ee6419
go 1.17

166
go.sum
View File

@ -62,6 +62,8 @@ dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7
dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
filippo.io/edwards25519 v1.0.0-rc.1 h1:m0VOOB23frXZvAOK44usCgLWvtsxIoMCTBGJZlpmGfU=
filippo.io/edwards25519 v1.0.0-rc.1/go.mod h1:N1IkdkCkiLB6tki+MYJoSx2JTY9NUlxZE7eHn5EwJns=
gioui.org v0.0.0-20210308172011-57750fc8a0a6/go.mod h1:RSH6KIUZ0p2xy5zHDxgAM4zumjgTw83q2ge/PI+yyw8=
git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
git.apache.org/thrift.git v0.12.0/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
@ -974,6 +976,7 @@ github.com/kataras/iris/v12 v12.1.8/go.mod h1:LMYy4VlP67TQ3Zgriz8RE2h2kMZV2SgMYb
github.com/kataras/neffos v0.0.14/go.mod h1:8lqADm8PnbeFfL7CLXh1WHw53dG27MC3pgi2R1rmoTE=
github.com/kataras/pio v0.0.2/go.mod h1:hAoW0t9UmXi4R5Oyq5Z4irTbaTsOemSrDGUtaTl7Dro=
github.com/kataras/sitemap v0.0.5/go.mod h1:KY2eugMKiPwsJgx7+U103YZehfvNGOXURubcGyk0Bz8=
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 h1:Z9n2FFNUXsshfwJMBgNA0RU6/i7WVaAegv3PtuIHPMs=
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
github.com/kettek/apng v0.0.0-20191108220231-414630eed80f h1:dnCYnTSltLuPMfc7dMrkz2uBUcEf/OFBR8yRh3oRT98=
github.com/kettek/apng v0.0.0-20191108220231-414630eed80f/go.mod h1:x78/VRQYKuCftMWS0uK5e+F5RJ7S4gSlESRWI0Prl6Q=
@ -1050,8 +1053,8 @@ github.com/lib/pq v1.8.0/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/lib/pq v1.10.0/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/lib/pq v1.10.2/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/lib/pq v1.10.4/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
github.com/lrstanley/girc v0.0.0-20211023233735-147f0ff77566 h1:tseAo8DbdhZa+PLuJW0p/P8b7I9LUiVpIpboAHkLsoM=
github.com/lrstanley/girc v0.0.0-20211023233735-147f0ff77566/go.mod h1:liX5MxHPrwgHaKowoLkYGwbXfYABh1jbZ6FpElbGF1I=
github.com/lrstanley/girc v0.0.0-20220321215535-9664730c7858 h1:IIbHCRHuANbPoQymk4BWGcRI47RXHOt7bDxPbxQ9rms=
github.com/lrstanley/girc v0.0.0-20220321215535-9664730c7858/go.mod h1:liX5MxHPrwgHaKowoLkYGwbXfYABh1jbZ6FpElbGF1I=
github.com/lunixbochs/vtclean v1.0.0/go.mod h1:pHhQNgMf3btfWnGBVipUOjRYhoOsdGqdm/+2c2E2WMI=
github.com/lyft/protoc-gen-star v0.5.3/go.mod h1:V0xaHgaf5oCCqmcxYcWiDfTiKsZsRc87/1qhoTACD8w=
github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
@ -1135,12 +1138,16 @@ github.com/mattn/go-shellwords v1.0.3/go.mod h1:3xCvwCdWdlDJUrvuMn7Wuy9eWs4pE8vq
github.com/mattn/go-sqlite3 v1.9.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/mattn/go-sqlite3 v1.10.0/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/mattn/go-sqlite3 v1.14.6/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/mattn/go-sqlite3 v1.14.10/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
github.com/mattn/go-sqlite3 v2.0.3+incompatible h1:gXHsfypPkaMZrKbD5209QV9jbUTJKjyR5WD3HYQSd+U=
github.com/mattn/go-sqlite3 v2.0.3+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
github.com/mattn/godown v0.0.1 h1:39uk50ufLVQFs0eapIJVX5fCS74a1Fs2g5f1MVqIHdE=
github.com/mattn/godown v0.0.1/go.mod h1:/ivCKurgV/bx6yqtP/Jtc2Xmrv3beCYBvlfAUl4X5g4=
github.com/mattn/goveralls v0.0.2/go.mod h1:8d1ZMHsd7fW6IRPKQh46F2WRpyib5/X4FOpevwGNQEw=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
github.com/mdp/qrterminal v1.0.1 h1:07+fzVDlPuBlXS8tB0ktTAyf+Lp1j2+2zK3fBOL5b7c=
github.com/mdp/qrterminal v1.0.1/go.mod h1:Z33WhxQe9B6CdW37HaVqcRKzP+kByF3q/qLxOGe12xQ=
github.com/mediocregopher/radix/v3 v3.4.2/go.mod h1:8FL3F6UQRXHXIBSPUs5h0RybMF8i4n7wVopoX3x7Bv8=
github.com/mgutz/ansi v0.0.0-20170206155736-9520e82c474b/go.mod h1:01TrycV0kFyexm33Z7vhZRXopbI8J3TDReVlkTgMUxE=
github.com/mgutz/ansi v0.0.0-20200706080929-d51e80ef957d h1:5PJl274Y63IEHC+7izoQE9x6ikvDFZS2mDVS3drnohI=
@ -1163,11 +1170,13 @@ github.com/minio/minio-go/v7 v7.0.16/go.mod h1:pUV0Pc+hPd1nccgmzQF/EXh48l/Z/yps6
github.com/minio/sha256-simd v0.1.1/go.mod h1:B5e1o+1/KgNmWrSQK08Y6Z1Vb5pwIktudl0J58iy0KM=
github.com/minio/sha256-simd v1.0.0 h1:v1ta+49hkWZyvaKwrQB8elexRqm6Y0aMLjCNsrYxo6g=
github.com/minio/sha256-simd v1.0.0/go.mod h1:OuYzVNI5vcoYIAmbIvHPl3N3jUzVedXbKy5RFepssQM=
github.com/missdeer/golib v1.0.4 h1:tM7MJIPffXSmwFCTOCMjL5C7JsT5SQ+OmZwzssZQOa8=
github.com/missdeer/golib v1.0.4/go.mod h1:mPN/UcszFq0GxKfQsZI3aFOiRjnzXCBZ392od3guGEY=
github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible/go.mod h1:8AuVvqP/mXw1px98n46wfvcGfQ4ci2FwoAjKYxuo3Z4=
github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible/go.mod h1:8AuVvqP/mXw1px98n46wfvcGfQ4ci2FwoAjKYxuo3Z4=
github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
github.com/mitchellh/cli v1.0.0/go.mod h1:hNIlj7HEI86fIcpObd7a0FcrxTWetlwJDGcceTlRvqc=
github.com/mitchellh/cli v1.1.0/go.mod h1:xcISNoH86gajksDmfB23e/pu+B+GeFRMYmoHXxx3xhI=
github.com/mitchellh/cli v1.1.0/go.mod h1:xcISNoH86gajksDmfB23e/pu+B+GeFRMYmoHXxx3xhI=
github.com/mitchellh/go-homedir v1.0.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/go-homedir v1.0.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
@ -1393,6 +1402,7 @@ github.com/rcrowley/go-metrics v0.0.0-20181016184325-3113b8401b8a/go.mod h1:bCqn
github.com/rcrowley/go-metrics v0.0.0-20190826022208-cac0b30c2563/go.mod h1:bCqnVzQkZxMG4s8nGwiZ5l3QUCyqpo9Y+/ZMZ9VjZe4=
github.com/reflog/dateconstraints v0.2.1/go.mod h1:Ax8AxTBcJc3E/oVS2hd2j7RDM/5MDtuPwuR7lIHtPLo=
github.com/remyoudompheng/bigfft v0.0.0-20190728182440-6a916e37a237/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 h1:OdAsTTz6OkFY5QxjkYwrChwuRruF69c169dPK26NUlk=
github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0/go.mod h1:qqbHyh8v60DhA7CoWK5oRCqLrMHRGoxYCSS9EjAz6Eo=
github.com/richardlehane/mscfb v1.0.3/go.mod h1:YzVpcZg9czvAuhk9T+a3avCpcFPMUWm7gK3DypaEsUk=
github.com/richardlehane/msoleps v1.0.1/go.mod h1:BWev5JBpU9Ko2WAgmZEuiz4/u3ZYTKbjLycmwiWUfWg=
@ -1491,8 +1501,8 @@ github.com/sirupsen/logrus v1.8.1 h1:dJKuHgqk1NNQlqoA6BTlM1Wf9DOH3NBjQyu0h9+AZZE
github.com/sirupsen/logrus v1.8.1/go.mod h1:yWOB1SBYBC5VeMP7gHvWumXLIWorT60ONWic61uBYv0=
github.com/sizeofint/webpanimation v0.0.0-20210809145948-1d2b32119882 h1:A7o8tOERTtpD/poS+2VoassCjXpjHn916luXbf5QKD0=
github.com/sizeofint/webpanimation v0.0.0-20210809145948-1d2b32119882/go.mod h1:5IwJoz9Pw7JsrCN4/skkxUtSWT7myuUPLhCgv6Q5vvQ=
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e h1:MRM5ITcdelLK2j1vwZ3Je0FKVCfqOLp5zO6trqMLYs0=
github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e/go.mod h1:XV66xRDqSt+GTGFMVlhk3ULuV0y9ZmzeVGR4mloJI3M=
github.com/skip2/go-qrcode v0.0.0-20190110000554-dc11ecdae0a9 h1:lpEzuenPuO1XNTeikEmvqYFcU37GVLl8SRNblzyvGBE=
github.com/skip2/go-qrcode v0.0.0-20190110000554-dc11ecdae0a9/go.mod h1:PLPIyL7ikehBD1OAjmKKiOEhbvWyHGaNDjquXMcYABo=
github.com/slack-go/slack v0.10.2 h1:KMN/h2sgUninHXvQI8PrR/PHBUuWp2NPvz2Kr66tki4=
github.com/slack-go/slack v0.10.2/go.mod h1:5FLdBRv7VW/d9EBxx/eEktOptWygbA9K2QK/KW7ds1s=
github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
@ -1699,6 +1709,10 @@ go.etcd.io/etcd/client/pkg/v3 v3.5.0/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3
go.etcd.io/etcd/client/pkg/v3 v3.5.1/go.mod h1:IJHfcCEKxYu1Os13ZdwCwIUTUVGYTSAM3YSwc9/Ac1g=
go.etcd.io/etcd/client/v2 v2.305.0/go.mod h1:h9puh54ZTgAKtEbut2oe9P4L/oqKCVB6xsXlzd7alYQ=
go.etcd.io/etcd/client/v2 v2.305.1/go.mod h1:pMEacxZW7o8pg4CrFE7pquyCJJzZvkvdD2RibOCCCGs=
go.mau.fi/libsignal v0.0.0-20220315232917-871a40435d3b h1:BGm0ceth6OtoXgBksEyeruiCL2ngZCwt86DUmUI6TmQ=
go.mau.fi/libsignal v0.0.0-20220315232917-871a40435d3b/go.mod h1:XYWsswZT1LfDmguWKYDuj+OugtdGX6CP3iwTtOcAGt4=
go.mau.fi/whatsmeow v0.0.0-20220319105109-ee347f8c0a14 h1:ExTTrre0VoTljTf08nGeE24i2aqNF4CxQVnlFYEiQUg=
go.mau.fi/whatsmeow v0.0.0-20220319105109-ee347f8c0a14/go.mod h1:P7OA9XyJ/0dWHhUPKNESpC1wVOErnhY4pLEaMC1a8yg=
go.mongodb.org/mongo-driver v1.1.0/go.mod h1:u7ryQJ+DOzQmeO7zB6MHyr8jkEQvC8vH7qLUO4lqsUM=
go.mongodb.org/mongo-driver v1.7.0/go.mod h1:Q4oFMbo1+MSNqICAdYMlC/zSTrwCogR4R8NzkI+yfU8=
go.mozilla.org/pkcs7 v0.0.0-20200128120323-432b2356ecb1/go.mod h1:SNgMg+EgDFwmvSmLRTNKC5fegJjB7v23qTQ0XLGUNHk=
@ -1779,8 +1793,9 @@ golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5y
golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20210817164053-32db794688a5/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871 h1:/pEO3GD/ABYAjuakUS6xSEmmlyVS4kxBNkeA9tLJiTI=
golang.org/x/crypto v0.0.0-20211117183948-ae814b36b871/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/crypto v0.0.0-20220315160706-3147a52a75dd h1:XcWmESyNjXJMLahc3mqVQJcgSTDxFxhETVlfk9uGc38=
golang.org/x/crypto v0.0.0-20220315160706-3147a52a75dd/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@ -1838,6 +1853,7 @@ golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.5.0/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
golang.org/x/mod v0.5.1 h1:OJxoQ/rynoF0dcCdI7cLPktw/hR2cueqYfjm43oqK38=
golang.org/x/mod v0.5.1/go.mod h1:5OXOZSfqPIIbmVBIIKWRFfZjPR0E5r58TLhUjH0a2Ro=
golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180530234432-1e491301e022/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@ -2198,6 +2214,7 @@ golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.4/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.5/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
golang.org/x/tools v0.1.7 h1:6j8CgantCy3yc8JGBqkDLMKWqZ0RDU2g1HVgacojGWQ=
golang.org/x/tools v0.1.7/go.mod h1:LGqMHiF4EqQNHR1JncWGqT5BVaXmza+X+BDGol+dOxo=
golang.org/x/xerrors v0.0.0-20190410155217-1f06c39b4373/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20190513163551-3ee3066db522/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -2499,35 +2516,170 @@ k8s.io/utils v0.0.0-20201110183641-67b214c5f920/go.mod h1:jPW/WVKK9YHAvNhRxK0md/
layeh.com/gopus v0.0.0-20161224163843-0ebf989153aa/go.mod h1:AOef7vHz0+v4sWwJnr0jSyHiX/1NgsMoaxl+rEPz/I0=
layeh.com/gumble v0.0.0-20200818122324-146f9205029b h1:Kne6wkHqbqrygRsqs5XUNhSs84DFG5TYMeCkCbM56sY=
layeh.com/gumble v0.0.0-20200818122324-146f9205029b/go.mod h1:tWPVA9ZAfImNwabjcd9uDE+Mtz0Hfs7a7G3vxrnrwyc=
lukechampine.com/uint128 v1.1.1 h1:pnxCASz787iMf+02ssImqk6OLt+Z5QHMoZyUXR4z6JU=
lukechampine.com/uint128 v1.1.1/go.mod h1:c4eWIwlEGaxC/+H1VguhU4PHXNWDCDMUlWdIWl2j1gk=
modernc.org/b v1.0.0/go.mod h1:uZWcZfRj1BpYzfN9JTerzlNUnnPsV9O2ZA8JsRcubNg=
modernc.org/cc/v3 v3.32.4/go.mod h1:0R6jl1aZlIl2avnYfbfHBS1QB6/f+16mihBObaBC878=
modernc.org/cc/v3 v3.33.6/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.33.9/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.33.11/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.34.0/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.0/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.4/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.5/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.7/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.8/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.10/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.15/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.16/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.17/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.18/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.20/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.22/go.mod h1:iPJg1pkwXqAV16SNgFBVYmggfMg6xhs+2oiO0vclK3g=
modernc.org/cc/v3 v3.35.24 h1:vlCqjhVwX15t1uwlMPpOpNRC7JTjMZ9lT9DYHKQTFuA=
modernc.org/cc/v3 v3.35.24/go.mod h1:NFUHyPn4ekoC/JHeZFfZurN6ixxawE1BnVonP/oahEI=
modernc.org/ccgo/v3 v3.9.2/go.mod h1:gnJpy6NIVqkETT+L5zPsQFj7L2kkhfPMzOghRNv/CFo=
modernc.org/ccgo/v3 v3.9.5/go.mod h1:umuo2EP2oDSBnD3ckjaVUXMrmeAw8C8OSICVa0iFf60=
modernc.org/ccgo/v3 v3.10.0/go.mod h1:c0yBmkRFi7uW4J7fwx/JiijwOjeAeR2NoSaRVFPmjMw=
modernc.org/ccgo/v3 v3.11.0/go.mod h1:dGNposbDp9TOZ/1KBxghxtUp/bzErD0/0QW4hhSaBMI=
modernc.org/ccgo/v3 v3.11.1/go.mod h1:lWHxfsn13L3f7hgGsGlU28D9eUOf6y3ZYHKoPaKU0ag=
modernc.org/ccgo/v3 v3.11.3/go.mod h1:0oHunRBMBiXOKdaglfMlRPBALQqsfrCKXgw9okQ3GEw=
modernc.org/ccgo/v3 v3.12.4/go.mod h1:Bk+m6m2tsooJchP/Yk5ji56cClmN6R1cqc9o/YtbgBQ=
modernc.org/ccgo/v3 v3.12.6/go.mod h1:0Ji3ruvpFPpz+yu+1m0wk68pdr/LENABhTrDkMDWH6c=
modernc.org/ccgo/v3 v3.12.8/go.mod h1:Hq9keM4ZfjCDuDXxaHptpv9N24JhgBZmUG5q60iLgUo=
modernc.org/ccgo/v3 v3.12.11/go.mod h1:0jVcmyDwDKDGWbcrzQ+xwJjbhZruHtouiBEvDfoIsdg=
modernc.org/ccgo/v3 v3.12.14/go.mod h1:GhTu1k0YCpJSuWwtRAEHAol5W7g1/RRfS4/9hc9vF5I=
modernc.org/ccgo/v3 v3.12.18/go.mod h1:jvg/xVdWWmZACSgOiAhpWpwHWylbJaSzayCqNOJKIhs=
modernc.org/ccgo/v3 v3.12.20/go.mod h1:aKEdssiu7gVgSy/jjMastnv/q6wWGRbszbheXgWRHc8=
modernc.org/ccgo/v3 v3.12.21/go.mod h1:ydgg2tEprnyMn159ZO/N4pLBqpL7NOkJ88GT5zNU2dE=
modernc.org/ccgo/v3 v3.12.22/go.mod h1:nyDVFMmMWhMsgQw+5JH6B6o4MnZ+UQNw1pp52XYFPRk=
modernc.org/ccgo/v3 v3.12.25/go.mod h1:UaLyWI26TwyIT4+ZFNjkyTbsPsY3plAEB6E7L/vZV3w=
modernc.org/ccgo/v3 v3.12.29/go.mod h1:FXVjG7YLf9FetsS2OOYcwNhcdOLGt8S9bQ48+OP75cE=
modernc.org/ccgo/v3 v3.12.36/go.mod h1:uP3/Fiezp/Ga8onfvMLpREq+KUjUmYMxXPO8tETHtA8=
modernc.org/ccgo/v3 v3.12.38/go.mod h1:93O0G7baRST1vNj4wnZ49b1kLxt0xCW5Hsa2qRaZPqc=
modernc.org/ccgo/v3 v3.12.43/go.mod h1:k+DqGXd3o7W+inNujK15S5ZYuPoWYLpF5PYougCmthU=
modernc.org/ccgo/v3 v3.12.46/go.mod h1:UZe6EvMSqOxaJ4sznY7b23/k13R8XNlyWsO5bAmSgOE=
modernc.org/ccgo/v3 v3.12.47/go.mod h1:m8d6p0zNps187fhBwzY/ii6gxfjob1VxWb919Nk1HUk=
modernc.org/ccgo/v3 v3.12.50/go.mod h1:bu9YIwtg+HXQxBhsRDE+cJjQRuINuT9PUK4orOco/JI=
modernc.org/ccgo/v3 v3.12.51/go.mod h1:gaIIlx4YpmGO2bLye04/yeblmvWEmE4BBBls4aJXFiE=
modernc.org/ccgo/v3 v3.12.53/go.mod h1:8xWGGTFkdFEWBEsUmi+DBjwu/WLy3SSOrqEmKUjMeEg=
modernc.org/ccgo/v3 v3.12.54/go.mod h1:yANKFTm9llTFVX1FqNKHE0aMcQb1fuPJx6p8AcUx+74=
modernc.org/ccgo/v3 v3.12.55/go.mod h1:rsXiIyJi9psOwiBkplOaHye5L4MOOaCjHg1Fxkj7IeU=
modernc.org/ccgo/v3 v3.12.56/go.mod h1:ljeFks3faDseCkr60JMpeDb2GSO3TKAmrzm7q9YOcMU=
modernc.org/ccgo/v3 v3.12.57/go.mod h1:hNSF4DNVgBl8wYHpMvPqQWDQx8luqxDnNGCMM4NFNMc=
modernc.org/ccgo/v3 v3.12.60/go.mod h1:k/Nn0zdO1xHVWjPYVshDeWKqbRWIfif5dtsIOCUVMqM=
modernc.org/ccgo/v3 v3.12.66/go.mod h1:jUuxlCFZTUZLMV08s7B1ekHX5+LIAurKTTaugUr/EhQ=
modernc.org/ccgo/v3 v3.12.67/go.mod h1:Bll3KwKvGROizP2Xj17GEGOTrlvB1XcVaBrC90ORO84=
modernc.org/ccgo/v3 v3.12.73/go.mod h1:hngkB+nUUqzOf3iqsM48Gf1FZhY599qzVg1iX+BT3cQ=
modernc.org/ccgo/v3 v3.12.81/go.mod h1:p2A1duHoBBg1mFtYvnhAnQyI6vL0uw5PGYLSIgF6rYY=
modernc.org/ccgo/v3 v3.12.84/go.mod h1:ApbflUfa5BKadjHynCficldU1ghjen84tuM5jRynB7w=
modernc.org/ccgo/v3 v3.12.86/go.mod h1:dN7S26DLTgVSni1PVA3KxxHTcykyDurf3OgUzNqTSrU=
modernc.org/ccgo/v3 v3.12.90/go.mod h1:obhSc3CdivCRpYZmrvO88TXlW0NvoSVvdh/ccRjJYko=
modernc.org/ccgo/v3 v3.12.92/go.mod h1:5yDdN7ti9KWPi5bRVWPl8UNhpEAtCjuEE7ayQnzzqHA=
modernc.org/ccgo/v3 v3.13.1/go.mod h1:aBYVOUfIlcSnrsRVU8VRS35y2DIfpgkmVkYZ0tpIXi4=
modernc.org/ccgo/v3 v3.15.9/go.mod h1:md59wBwDT2LznX/OTCPoVS6KIsdRgY8xqQwBV+hkTH0=
modernc.org/ccgo/v3 v3.15.10/go.mod h1:wQKxoFn0ynxMuCLfFD09c8XPUCc8obfchoVR9Cn0fI8=
modernc.org/ccgo/v3 v3.15.12/go.mod h1:VFePOWoCd8uDGRJpq/zfJ29D0EVzMSyID8LCMWYbX6I=
modernc.org/ccgo/v3 v3.15.14/go.mod h1:144Sz2iBCKogb9OKwsu7hQEub3EVgOlyI8wMUPGKUXQ=
modernc.org/ccgo/v3 v3.15.15/go.mod h1:z5qltXjU4PJl0pE5nhYQCvA9DhPHiWsl5GWl89+NSYE=
modernc.org/ccgo/v3 v3.15.16/go.mod h1:XbKRMeMWMdq712Tr5ECgATYMrzJ+g9zAZEj2ktzBe24=
modernc.org/ccgo/v3 v3.15.17 h1:svaDk4rfh7XQPBwkqzjKK8bta/vK4VVL3JP6ZLbcr0w=
modernc.org/ccgo/v3 v3.15.17/go.mod h1:bofnFkpRFf5gLY+mBZIyTW6FEcp26xi2lgOFk2Rlvs0=
modernc.org/ccorpus v1.11.1/go.mod h1:2gEUTrWqdpH2pXsmTM1ZkjeSrUWDpjMu2T6m29L/ErQ=
modernc.org/ccorpus v1.11.6 h1:J16RXiiqiCgua6+ZvQot4yUuUy8zxgqbqEEUuGPlISk=
modernc.org/ccorpus v1.11.6/go.mod h1:2gEUTrWqdpH2pXsmTM1ZkjeSrUWDpjMu2T6m29L/ErQ=
modernc.org/db v1.0.0/go.mod h1:kYD/cO29L/29RM0hXYl4i3+Q5VojL31kTUVpVJDw0s8=
modernc.org/file v1.0.0/go.mod h1:uqEokAEn1u6e+J45e54dsEA/pw4o7zLrA2GwyntZzjw=
modernc.org/fileutil v1.0.0/go.mod h1:JHsWpkrk/CnVV1H/eGlFf85BEpfkrp56ro8nojIq9Q8=
modernc.org/golex v1.0.0/go.mod h1:b/QX9oBD/LhixY6NDh+IdGv17hgB+51fET1i2kPSmvk=
modernc.org/httpfs v1.0.6 h1:AAgIpFZRXuYnkjftxTAZwMIiwEqAfk8aVB2/oA6nAeM=
modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
modernc.org/internal v1.0.0/go.mod h1:VUD/+JAkhCpvkUitlEOnhpVxCgsBI90oTzSCRcqQVSM=
modernc.org/libc v1.7.13-0.20210308123627-12f642a52bb8/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
modernc.org/libc v1.9.5/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
modernc.org/libc v1.9.8/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
modernc.org/libc v1.9.11/go.mod h1:NyF3tsA5ArIjJ83XB0JlqhjTabTCHm9aX4XMPHyQn0Q=
modernc.org/libc v1.11.0/go.mod h1:2lOfPmj7cz+g1MrPNmX65QCzVxgNq2C5o0jdLY2gAYg=
modernc.org/libc v1.11.2/go.mod h1:ioIyrl3ETkugDO3SGZ+6EOKvlP3zSOycUETe4XM4n8M=
modernc.org/libc v1.11.5/go.mod h1:k3HDCP95A6U111Q5TmG3nAyUcp3kR5YFZTeDS9v8vSU=
modernc.org/libc v1.11.6/go.mod h1:ddqmzR6p5i4jIGK1d/EiSw97LBcE3dK24QEwCFvgNgE=
modernc.org/libc v1.11.11/go.mod h1:lXEp9QOOk4qAYOtL3BmMve99S5Owz7Qyowzvg6LiZso=
modernc.org/libc v1.11.13/go.mod h1:ZYawJWlXIzXy2Pzghaf7YfM8OKacP3eZQI81PDLFdY8=
modernc.org/libc v1.11.16/go.mod h1:+DJquzYi+DMRUtWI1YNxrlQO6TcA5+dRRiq8HWBWRC8=
modernc.org/libc v1.11.19/go.mod h1:e0dgEame6mkydy19KKaVPBeEnyJB4LGNb0bBH1EtQ3I=
modernc.org/libc v1.11.24/go.mod h1:FOSzE0UwookyT1TtCJrRkvsOrX2k38HoInhw+cSCUGk=
modernc.org/libc v1.11.26/go.mod h1:SFjnYi9OSd2W7f4ct622o/PAYqk7KHv6GS8NZULIjKY=
modernc.org/libc v1.11.27/go.mod h1:zmWm6kcFXt/jpzeCgfvUNswM0qke8qVwxqZrnddlDiE=
modernc.org/libc v1.11.28/go.mod h1:Ii4V0fTFcbq3qrv3CNn+OGHAvzqMBvC7dBNyC4vHZlg=
modernc.org/libc v1.11.31/go.mod h1:FpBncUkEAtopRNJj8aRo29qUiyx5AvAlAxzlx9GNaVM=
modernc.org/libc v1.11.34/go.mod h1:+Tzc4hnb1iaX/SKAutJmfzES6awxfU1BPvrrJO0pYLg=
modernc.org/libc v1.11.37/go.mod h1:dCQebOwoO1046yTrfUE5nX1f3YpGZQKNcITUYWlrAWo=
modernc.org/libc v1.11.39/go.mod h1:mV8lJMo2S5A31uD0k1cMu7vrJbSA3J3waQJxpV4iqx8=
modernc.org/libc v1.11.42/go.mod h1:yzrLDU+sSjLE+D4bIhS7q1L5UwXDOw99PLSX0BlZvSQ=
modernc.org/libc v1.11.44/go.mod h1:KFq33jsma7F5WXiYelU8quMJasCCTnHK0mkri4yPHgA=
modernc.org/libc v1.11.45/go.mod h1:Y192orvfVQQYFzCNsn+Xt0Hxt4DiO4USpLNXBlXg/tM=
modernc.org/libc v1.11.47/go.mod h1:tPkE4PzCTW27E6AIKIR5IwHAQKCAtudEIeAV1/SiyBg=
modernc.org/libc v1.11.49/go.mod h1:9JrJuK5WTtoTWIFQ7QjX2Mb/bagYdZdscI3xrvHbXjE=
modernc.org/libc v1.11.51/go.mod h1:R9I8u9TS+meaWLdbfQhq2kFknTW0O3aw3kEMqDDxMaM=
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modernc.org/libc v1.11.56/go.mod h1:pakHkg5JdMLt2OgRadpPOTnyRXm/uzu+Yyg/LSLdi18=
modernc.org/libc v1.11.58/go.mod h1:ns94Rxv0OWyoQrDqMFfWwka2BcaF6/61CqJRK9LP7S8=
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modernc.org/libc v1.11.75/go.mod h1:dGRVugT6edz361wmD9gk6ax1AbDSe0x5vji0dGJiPT0=
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modernc.org/libc v1.14.11 h1:ivxNmUkfp5iSGAGMIjylvx5R53s6QTJW9qUru1yrnk4=
modernc.org/libc v1.14.11/go.mod h1:l5/Mz/GrZwOqzwRHA3abgSCnSeJzzTl+Ify0bAwKbAw=
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sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.14/go.mod h1:LEScyzhFmoF5pso/YSeBstl57mOzx9xlU9n85RGrDQg=

12
matterbridge.toml.sample
View File

@ -1036,6 +1036,12 @@ DisableWebPagePreview=false
#OPTIONAL (default false)
UseFirstName=false
#If enabled use the "Full Name" as username. If this is empty use the Username
#If disabled use the "Username" as username. If this is empty use the First Name and Last Name as Full Name
#If all names are empty, username will be "unknown"
#OPTIONAL (default false)
UseFullName=false
#WARNING! If enabled this will relay GIF/stickers/documents and other attachments as URLs
#Those URLs will contain your bot-token. This may not be what you want.
#For now there is no secure way to relay GIF/stickers/documents without seeing your token.
@ -1141,6 +1147,12 @@ StripNick=false
#OPTIONAL (default false)
ShowTopicChange=false
#Opportunistically preserve threaded replies between Telegram groups.
#This only works if the parent message is still in the cache.
#Cache is flushed between restarts.
#OPTIONAL (default false)
PreserveThreading=false
###################################################################
#rocketchat section
###################################################################

27
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@ -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
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@ -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.
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/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
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@ -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/ed25519/internal/edwards25519 from the standard library repackaged as
// an importable module.
package edwards25519

428
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@ -0,0 +1,428 @@
// 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 {
// 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
// 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
}
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.
//
// This is consistent with crypto/ed25519/internal/edwards25519. 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/ed25519/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.
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**7, 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, SetUniformBytes 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.
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 204:251 (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) (rr *Element, wasSquare int) {
var a, b Element
// r = (u * v3) * (u * v7)^((p-5)/8)
v2 := a.Square(v)
uv3 := b.Multiply(u, b.Multiply(v2, v))
uv7 := a.Multiply(uv3, a.Square(v2))
r.Multiply(uv3, r.Pow22523(uv7))
check := a.Multiply(v, a.Square(r)) // check = v * r^2
uNeg := b.Negate(u)
correctSignSqrt := check.Equal(u)
flippedSignSqrt := check.Equal(uNeg)
flippedSignSqrtI := check.Equal(uNeg.Multiply(uNeg, sqrtM1))
rPrime := b.Multiply(r, sqrtM1) // r_prime = SQRT_M1 * r
// r = CT_SELECT(r_prime IF flipped_sign_sqrt | flipped_sign_sqrt_i ELSE r)
r.Select(rPrime, r, flippedSignSqrt|flippedSignSqrtI)
r.Absolute(r) // Choose the nonnegative square root.
return r, correctSignSqrt | flippedSignSqrt
}

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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.
// +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)

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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.
// +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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// 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) }

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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
}

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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.
// +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) 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 a 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()
}
// carryPropagate 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
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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// 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
}

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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
// recievers 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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Copyright (C) 2014 Kevin Ballard
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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PACKAGE
package shellquote
import "github.com/kballard/go-shellquote"
Shellquote provides utilities for joining/splitting strings using sh's
word-splitting rules.
VARIABLES
var (
UnterminatedSingleQuoteError = errors.New("Unterminated single-quoted string")
UnterminatedDoubleQuoteError = errors.New("Unterminated double-quoted string")
UnterminatedEscapeError = errors.New("Unterminated backslash-escape")
)
FUNCTIONS
func Join(args ...string) string
Join quotes each argument and joins them with a space. If passed to
/bin/sh, the resulting string will be split back into the original
arguments.
func Split(input string) (words []string, err error)
Split splits a string according to /bin/sh's word-splitting rules. It
supports backslash-escapes, single-quotes, and double-quotes. Notably it
does not support the $'' style of quoting. It also doesn't attempt to
perform any other sort of expansion, including brace expansion, shell
expansion, or pathname expansion.
If the given input has an unterminated quoted string or ends in a
backslash-escape, one of UnterminatedSingleQuoteError,
UnterminatedDoubleQuoteError, or UnterminatedEscapeError is returned.

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// Shellquote provides utilities for joining/splitting strings using sh's
// word-splitting rules.
package shellquote

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package shellquote
import (
"bytes"
"strings"
"unicode/utf8"
)
// Join quotes each argument and joins them with a space.
// If passed to /bin/sh, the resulting string will be split back into the
// original arguments.
func Join(args ...string) string {
var buf bytes.Buffer
for i, arg := range args {
if i != 0 {
buf.WriteByte(' ')
}
quote(arg, &buf)
}
return buf.String()
}
const (
specialChars = "\\'\"`${[|&;<>()*?!"
extraSpecialChars = " \t\n"
prefixChars = "~"
)
func quote(word string, buf *bytes.Buffer) {
// We want to try to produce a "nice" output. As such, we will
// backslash-escape most characters, but if we encounter a space, or if we
// encounter an extra-special char (which doesn't work with
// backslash-escaping) we switch over to quoting the whole word. We do this
// with a space because it's typically easier for people to read multi-word
// arguments when quoted with a space rather than with ugly backslashes
// everywhere.
origLen := buf.Len()
if len(word) == 0 {
// oops, no content
buf.WriteString("''")
return
}
cur, prev := word, word
atStart := true
for len(cur) > 0 {
c, l := utf8.DecodeRuneInString(cur)
cur = cur[l:]
if strings.ContainsRune(specialChars, c) || (atStart && strings.ContainsRune(prefixChars, c)) {
// copy the non-special chars up to this point
if len(cur) < len(prev) {
buf.WriteString(prev[0 : len(prev)-len(cur)-l])
}
buf.WriteByte('\\')
buf.WriteRune(c)
prev = cur
} else if strings.ContainsRune(extraSpecialChars, c) {
// start over in quote mode
buf.Truncate(origLen)
goto quote
}
atStart = false
}
if len(prev) > 0 {
buf.WriteString(prev)
}
return
quote:
// quote mode
// Use single-quotes, but if we find a single-quote in the word, we need
// to terminate the string, emit an escaped quote, and start the string up
// again
inQuote := false
for len(word) > 0 {
i := strings.IndexRune(word, '\'')
if i == -1 {
break
}
if i > 0 {
if !inQuote {
buf.WriteByte('\'')
inQuote = true
}
buf.WriteString(word[0:i])
}
word = word[i+1:]
if inQuote {
buf.WriteByte('\'')
inQuote = false
}
buf.WriteString("\\'")
}
if len(word) > 0 {
if !inQuote {
buf.WriteByte('\'')
}
buf.WriteString(word)
buf.WriteByte('\'')
}
}

156
vendor/github.com/kballard/go-shellquote/unquote.go generated vendored Normal file
View File

@ -0,0 +1,156 @@
package shellquote
import (
"bytes"
"errors"
"strings"
"unicode/utf8"
)
var (
UnterminatedSingleQuoteError = errors.New("Unterminated single-quoted string")
UnterminatedDoubleQuoteError = errors.New("Unterminated double-quoted string")
UnterminatedEscapeError = errors.New("Unterminated backslash-escape")
)
var (
splitChars = " \n\t"
singleChar = '\''
doubleChar = '"'
escapeChar = '\\'
doubleEscapeChars = "$`\"\n\\"
)
// Split splits a string according to /bin/sh's word-splitting rules. It
// supports backslash-escapes, single-quotes, and double-quotes. Notably it does
// not support the $'' style of quoting. It also doesn't attempt to perform any
// other sort of expansion, including brace expansion, shell expansion, or
// pathname expansion.
//
// If the given input has an unterminated quoted string or ends in a
// backslash-escape, one of UnterminatedSingleQuoteError,
// UnterminatedDoubleQuoteError, or UnterminatedEscapeError is returned.
func Split(input string) (words []string, err error) {
var buf bytes.Buffer
words = make([]string, 0)
for len(input) > 0 {
// skip any splitChars at the start
c, l := utf8.DecodeRuneInString(input)
if strings.ContainsRune(splitChars, c) {
input = input[l:]
continue
} else if c == escapeChar {
// Look ahead for escaped newline so we can skip over it
next := input[l:]
if len(next) == 0 {
err = UnterminatedEscapeError
return
}
c2, l2 := utf8.DecodeRuneInString(next)
if c2 == '\n' {
input = next[l2:]
continue
}
}
var word string
word, input, err = splitWord(input, &buf)
if err != nil {
return
}
words = append(words, word)
}
return
}
func splitWord(input string, buf *bytes.Buffer) (word string, remainder string, err error) {
buf.Reset()
raw:
{
cur := input
for len(cur) > 0 {
c, l := utf8.DecodeRuneInString(cur)
cur = cur[l:]
if c == singleChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto single
} else if c == doubleChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto double
} else if c == escapeChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto escape
} else if strings.ContainsRune(splitChars, c) {
buf.WriteString(input[0 : len(input)-len(cur)-l])
return buf.String(), cur, nil
}
}
if len(input) > 0 {
buf.WriteString(input)
input = ""
}
goto done
}
escape:
{
if len(input) == 0 {
return "", "", UnterminatedEscapeError
}
c, l := utf8.DecodeRuneInString(input)
if c == '\n' {
// a backslash-escaped newline is elided from the output entirely
} else {
buf.WriteString(input[:l])
}
input = input[l:]
}
goto raw
single:
{
i := strings.IndexRune(input, singleChar)
if i == -1 {
return "", "", UnterminatedSingleQuoteError
}
buf.WriteString(input[0:i])
input = input[i+1:]
goto raw
}
double:
{
cur := input
for len(cur) > 0 {
c, l := utf8.DecodeRuneInString(cur)
cur = cur[l:]
if c == doubleChar {
buf.WriteString(input[0 : len(input)-len(cur)-l])
input = cur
goto raw
} else if c == escapeChar {
// bash only supports certain escapes in double-quoted strings
c2, l2 := utf8.DecodeRuneInString(cur)
cur = cur[l2:]
if strings.ContainsRune(doubleEscapeChars, c2) {
buf.WriteString(input[0 : len(input)-len(cur)-l-l2])
if c2 == '\n' {
// newline is special, skip the backslash entirely
} else {
buf.WriteRune(c2)
}
input = cur
}
}
}
return "", "", UnterminatedDoubleQuoteError
}
done:
return buf.String(), input, nil
}

16
vendor/github.com/lrstanley/girc/README.md generated vendored
View File

@ -1,26 +1,20 @@
<p align="center"><a href="https://godoc.org/github.com/lrstanley/girc"><img width="270" src="http://i.imgur.com/DEnyrdB.png"></a></p>
<p align="center"><a href="https://pkg.go.dev/github.com/lrstanley/girc"><img width="270" src="http://i.imgur.com/DEnyrdB.png"></a></p>
<p align="center">girc, a flexible IRC library for Go</p>
<p align="center">
<a href="https://travis-ci.org/lrstanley/girc"><img src="https://travis-ci.org/lrstanley/girc.svg?branch=master" alt="Build Status"></a>
<a href="https://github.com/lrstanley/girc/actions"><img src="https://github.com/lrstanley/girc/workflows/test/badge.svg" alt="Test Status"></a>
<a href="https://codecov.io/gh/lrstanley/girc"><img src="https://codecov.io/gh/lrstanley/girc/branch/master/graph/badge.svg" alt="Coverage Status"></a>
<a href="https://godoc.org/github.com/lrstanley/girc"><img src="https://godoc.org/github.com/lrstanley/girc?status.png" alt="GoDoc"></a>
<a href="https://pkg.go.dev/github.com/lrstanley/girc"><img src="https://pkg.go.dev/badge/github.com/lrstanley/girc" alt="GoDoc"></a>
<a href="https://goreportcard.com/report/github.com/lrstanley/girc"><img src="https://goreportcard.com/badge/github.com/lrstanley/girc" alt="Go Report Card"></a>
<a href="https://byteirc.org/channel/%23%2Fdev%2Fnull"><img src="https://img.shields.io/badge/ByteIRC-%23%2Fdev%2Fnull-blue.svg" alt="IRC Chat"></a>
<a href="https://liam.sh/chat"><img src="https://img.shields.io/badge/community-chat%20with%20us-green.svg" alt="Community Chat"></a>
</p>
## Status
**girc is fairly close to marking the 1.0.0 endpoint, which will be tagged as
necessary, so you will be able to use this with care knowing the specific tag
you're using won't have breaking changes**
## Features
- Focuses on simplicity, yet tries to still be flexible.
- Only requires [standard library packages](https://godoc.org/github.com/lrstanley/girc?imports)
- Event based triggering/responses ([example](https://godoc.org/github.com/lrstanley/girc#ex-package--Commands), and [CTCP too](https://godoc.org/github.com/lrstanley/girc#Commands.SendCTCP)!)
- [Documentation](https://godoc.org/github.com/lrstanley/girc) is _mostly_ complete.
- Support for almost all of the [IRCv3 spec](http://ircv3.net/software/libraries.html).
- Support for a good portion of the [IRCv3 spec](http://ircv3.net/software/libraries.html).
- SASL Auth (currently only `PLAIN` and `EXTERNAL` is support by default,
however you can simply implement `SASLMech` yourself to support additional
mechanisms.)

2
vendor/github.com/lrstanley/girc/builtin.go generated vendored
View File

@ -451,7 +451,7 @@ func handleNAMES(c *Client, e Event) {
var modes, nick string
var ok bool
s := &Source{}
var s *Source
c.state.Lock()
for i := 0; i < len(parts); i++ {

2
vendor/github.com/lrstanley/girc/cap.go generated vendored
View File

@ -106,7 +106,7 @@ func parseCap(raw string) map[string]map[string]string {
if j < 0 {
out[parts[i][:val]][option] = ""
} else {
out[parts[i][:val]][option[:j]] = option[j+1 : len(option)]
out[parts[i][:val]][option[:j]] = option[j+1:]
}
}
}

1
vendor/github.com/lrstanley/girc/cap_sasl.go generated vendored
View File

@ -120,7 +120,6 @@ func handleSASL(c *Client, e Event) {
break
}
}
return
}
func handleSASLError(c *Client, e Event) {

10
vendor/github.com/lrstanley/girc/conn.go generated vendored
View File

@ -43,8 +43,7 @@ type ircConn struct {
lastPing time.Time
// lastPong is the last successful time that we pinged the server and
// received a successful pong back.
lastPong time.Time
pingDelay time.Duration
lastPong time.Time
}
// Dialer is an interface implementation of net.Dialer. Use this if you would
@ -477,7 +476,7 @@ func (c *Client) write(event *Event) {
func (c *ircConn) rate(chars int) time.Duration {
_time := time.Second + ((time.Duration(chars) * time.Second) / 100)
if c.writeDelay += _time - time.Now().Sub(c.lastWrite); c.writeDelay < 0 {
if c.writeDelay += _time - time.Since(c.lastWrite); c.writeDelay < 0 {
c.writeDelay = 0
}
@ -607,15 +606,16 @@ func (c *Client) pingLoop(ctx context.Context, errs chan error, wg *sync.WaitGro
if time.Since(c.conn.lastPong) > c.Config.PingDelay+(60*time.Second) {
// It's 60 seconds over what out ping delay is, connection
// has probably dropped.
errs <- ErrTimedOut{
err := ErrTimedOut{
TimeSinceSuccess: time.Since(c.conn.lastPong),
LastPong: c.conn.lastPong,
LastPing: c.conn.lastPing,
Delay: c.Config.PingDelay,
}
wg.Done()
c.conn.mu.RUnlock()
errs <- err
wg.Done()
return
}
c.conn.mu.RUnlock()

1
vendor/github.com/lrstanley/girc/constants.go generated vendored
View File

@ -347,4 +347,5 @@ const (
RPL_LOCALUSERS = "265" // aircd/hybrid/bahamut, used on freenode.
RPL_TOPICWHOTIME = "333" // ircu, used on freenode.
RPL_WHOSPCRPL = "354" // ircu, used on networks with WHOX support.
RPL_CREATIONTIME = "329"
)

4
vendor/github.com/lrstanley/girc/event.go generated vendored
View File

@ -13,7 +13,7 @@ import (
const (
eventSpace byte = ' ' // Separator.
maxLength = 510 // Maximum length is 510 (2 for line endings).
maxLength int = 510 // Maximum length is 510 (2 for line endings).
)
// cutCRFunc is used to trim CR characters from prefixes/messages.
@ -636,6 +636,4 @@ func (s *Source) writeTo(buffer *bytes.Buffer) {
buffer.WriteByte(prefixHost)
buffer.WriteString(s.Host)
}
return
}

1
vendor/github.com/lrstanley/girc/handler.go generated vendored
View File

@ -458,7 +458,6 @@ func recoverHandlerPanic(client *Client, event *Event, id string, skip int) {
}
client.Config.RecoverFunc(client, err)
return
}
// HandlerError is the error returned when a panic is intentionally recovered

0
vendor/github.com/matrix-org/gomatrix/.gitignore → vendor/github.com/matterbridge/gomatrix/.gitignore generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/.golangci.yml → vendor/github.com/matterbridge/gomatrix/.golangci.yml generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/.travis.yml → vendor/github.com/matterbridge/gomatrix/.travis.yml generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/CHANGELOG.md → vendor/github.com/matterbridge/gomatrix/CHANGELOG.md generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/LICENSE → vendor/github.com/matterbridge/gomatrix/LICENSE generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/README.md → vendor/github.com/matterbridge/gomatrix/README.md generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/client.go → vendor/github.com/matterbridge/gomatrix/client.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/events.go → vendor/github.com/matterbridge/gomatrix/events.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/filter.go → vendor/github.com/matterbridge/gomatrix/filter.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/identifier.go → vendor/github.com/matterbridge/gomatrix/identifier.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/requests.go → vendor/github.com/matterbridge/gomatrix/requests.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/responses.go → vendor/github.com/matterbridge/gomatrix/responses.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/room.go → vendor/github.com/matterbridge/gomatrix/room.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/store.go → vendor/github.com/matterbridge/gomatrix/store.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/sync.go → vendor/github.com/matterbridge/gomatrix/sync.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/tags.go → vendor/github.com/matterbridge/gomatrix/tags.go generated vendored
View File

0
vendor/github.com/matrix-org/gomatrix/userids.go → vendor/github.com/matterbridge/gomatrix/userids.go generated vendored
View File

4
vendor/github.com/mdp/qrterminal/.travis.yml generated vendored Normal file
View File

@ -0,0 +1,4 @@
language: go
go:
- tip

11
vendor/github.com/mdp/qrterminal/CHANGELOG.md generated vendored Normal file
View File

@ -0,0 +1,11 @@
## 1.0.0
Update to add a quiet zone border to the QR Code - #5 and fixed by [WindomZ](https://github.com/WindomZ) #8
- This can be configured with the `QuietZone int` option
- Defaults to 4 'pixels' wide to match the QR Code spec
- This alters the size of the barcode considerably and is therefore a breaking change, resulting in a bump to v1.0.0
## 0.2.1
Fix direction of the qr code #6 by (https://github.com/mattn)

78
vendor/github.com/mdp/qrterminal/README.md generated vendored Normal file
View File

@ -0,0 +1,78 @@
# QRCode Terminal
[![Build Status](https://secure.travis-ci.org/mdp/qrterminal.png)](https://travis-ci.org/mdp/qrterminal)
A golang library for generating QR codes in the terminal.
Originally this was a port of the [NodeJS version](https://github.com/gtanner/qrcode-terminal). Recently it's been updated to allow for smaller code generation using ASCII 'half blocks'
## Example
Full size ASCII block QR Code:
<img src="https://user-images.githubusercontent.com/2868/37992336-0ba06b56-31d1-11e8-9d32-5c6bb008dc74.png" alt="alt text" width="225" height="225">
Smaller 'half blocks' in the terminal:
<img src="https://user-images.githubusercontent.com/2868/37992371-243d4238-31d1-11e8-92f8-e34a794b21af.png" alt="alt text" width="225" height="225">
## Install
`go get github.com/mdp/qrterminal`
## Usage
```go
import (
"github.com/mdp/qrterminal"
"os"
)
func main() {
// Generate a 'dense' qrcode with the 'Low' level error correction and write it to Stdout
qrterminal.Generate("https://github.com/mdp/qrterminal", qrterminal.L, os.Stdout)
}
```
### More complicated
Large Inverted barcode with medium redundancy and a 1 pixel border
```go
import (
"github.com/mdp/qrterminal"
"os"
)
func main() {
config := qrterminal.Config{
Level: qrterminal.M,
Writer: os.Stdout,
BlackChar: qrterminal.WHITE,
WhiteChar: qrterminal.BLACK,
QuietZone: 1,
}
qrterminal.GenerateWithConfig("https://github.com/mdp/qrterminal", config)
}
```
HalfBlock barcode with medium redundancy
```go
import (
"github.com/mdp/qrterminal"
"os"
)
func main() {
config := qrterminal.Config{
HalfBlocks: true,
Level: qrterminal.M,
Writer: os.Stdout,
}
qrterminal.Generate("https://github.com/mdp/qrterminal", config)
}
```
Credits:
Mark Percival m@mdp.im
[Matthew Kennerly](https://github.com/mtkennerly)
[Viric](https://github.com/viric)
[WindomZ](https://github.com/WindomZ)
[mattn](https://github.com/mattn)

153
vendor/github.com/mdp/qrterminal/qrterminal.go generated vendored Normal file
View File

@ -0,0 +1,153 @@
package qrterminal
import (
"io"
"strings"
"rsc.io/qr"
)
const WHITE = "\033[47m \033[0m"
const BLACK = "\033[40m \033[0m"
// Use ascii blocks to form the QR Code
const BLACK_WHITE = "▄"
const BLACK_BLACK = " "
const WHITE_BLACK = "▀"
const WHITE_WHITE = "█"
// Level - the QR Code's redundancy level
const H = qr.H
const M = qr.M
const L = qr.L
// default is 4-pixel-wide white quiet zone
const QUIET_ZONE = 4
//Config for generating a barcode
type Config struct {
Level qr.Level
Writer io.Writer
HalfBlocks bool
BlackChar string
BlackWhiteChar string
WhiteChar string
WhiteBlackChar string
QuietZone int
}
func (c *Config) writeFullBlocks(w io.Writer, code *qr.Code) {
white := c.WhiteChar
black := c.BlackChar
// Frame the barcode in a 1 pixel border
w.Write([]byte(stringRepeat(stringRepeat(white,
code.Size+c.QuietZone*2)+"\n", c.QuietZone))) // top border
for i := 0; i <= code.Size; i++ {
w.Write([]byte(stringRepeat(white, c.QuietZone))) // left border
for j := 0; j <= code.Size; j++ {
if code.Black(j, i) {
w.Write([]byte(black))
} else {
w.Write([]byte(white))
}
}
w.Write([]byte(stringRepeat(white, c.QuietZone-1) + "\n")) // right border
}
w.Write([]byte(stringRepeat(stringRepeat(white,
code.Size+c.QuietZone*2)+"\n", c.QuietZone-1))) // bottom border
}
func (c *Config) writeHalfBlocks(w io.Writer, code *qr.Code) {
ww := c.WhiteChar
bb := c.BlackChar
wb := c.WhiteBlackChar
bw := c.BlackWhiteChar
// Frame the barcode in a 4 pixel border
// top border
if c.QuietZone%2 != 0 {
w.Write([]byte(stringRepeat(bw, code.Size+c.QuietZone*2) + "\n"))
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2)))
} else {
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2)))
}
for i := 0; i <= code.Size; i += 2 {
w.Write([]byte(stringRepeat(ww, c.QuietZone))) // left border
for j := 0; j <= code.Size; j++ {
next_black := false
if i+1 < code.Size {
next_black = code.Black(j, i+1)
}
curr_black := code.Black(j, i)
if curr_black && next_black {
w.Write([]byte(bb))
} else if curr_black && !next_black {
w.Write([]byte(bw))
} else if !curr_black && !next_black {
w.Write([]byte(ww))
} else {
w.Write([]byte(wb))
}
}
w.Write([]byte(stringRepeat(ww, c.QuietZone-1) + "\n")) // right border
}
// bottom border
if c.QuietZone%2 == 0 {
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2-1)))
w.Write([]byte(stringRepeat(wb, code.Size+c.QuietZone*2) + "\n"))
} else {
w.Write([]byte(stringRepeat(stringRepeat(ww,
code.Size+c.QuietZone*2)+"\n", c.QuietZone/2)))
}
}
func stringRepeat(s string, count int) string {
if count <= 0 {
return ""
}
return strings.Repeat(s, count)
}
// GenerateWithConfig expects a string to encode and a config
func GenerateWithConfig(text string, config Config) {
if config.QuietZone < 1 {
config.QuietZone = 1 // at least 1-pixel-wide white quiet zone
}
w := config.Writer
code, _ := qr.Encode(text, config.Level)
if config.HalfBlocks {
config.writeHalfBlocks(w, code)
} else {
config.writeFullBlocks(w, code)
}
}
// Generate a QR Code and write it out to io.Writer
func Generate(text string, l qr.Level, w io.Writer) {
config := Config{
Level: l,
Writer: w,
BlackChar: BLACK,
WhiteChar: WHITE,
QuietZone: QUIET_ZONE,
}
GenerateWithConfig(text, config)
}
// Generate a QR Code with half blocks and write it out to io.Writer
func GenerateHalfBlock(text string, l qr.Level, w io.Writer) {
config := Config{
Level: l,
Writer: w,
HalfBlocks: true,
BlackChar: BLACK_BLACK,
WhiteBlackChar: WHITE_BLACK,
WhiteChar: WHITE_WHITE,
BlackWhiteChar: BLACK_WHITE,
QuietZone: QUIET_ZONE,
}
GenerateWithConfig(text, config)
}

504
vendor/github.com/missdeer/golib/LICENSE generated vendored
View File

@ -1,504 +0,0 @@
GNU LESSER GENERAL PUBLIC LICENSE
Version 2.1, February 1999
Copyright (C) 1991, 1999 Free Software Foundation, Inc.
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
[This is the first released version of the Lesser GPL. It also counts
as the successor of the GNU Library Public License, version 2, hence
the version number 2.1.]
Preamble
The licenses for most software are designed to take away your
freedom to share and change it. By contrast, the GNU General Public
Licenses are intended to guarantee your freedom to share and change
free software--to make sure the software is free for all its users.
This license, the Lesser General Public License, applies to some
specially designated software packages--typically libraries--of the
Free Software Foundation and other authors who decide to use it. You
can use it too, but we suggest you first think carefully about whether
this license or the ordinary General Public License is the better
strategy to use in any particular case, based on the explanations below.
When we speak of free software, we are referring to freedom of use,
not price. Our General Public Licenses are designed to make sure that
you have the freedom to distribute copies of free software (and charge
for this service if you wish); that you receive source code or can get
it if you want it; that you can change the software and use pieces of
it in new free programs; and that you are informed that you can do
these things.
To protect your rights, we need to make restrictions that forbid
distributors to deny you these rights or to ask you to surrender these
rights. These restrictions translate to certain responsibilities for
you if you distribute copies of the library or if you modify it.
For example, if you distribute copies of the library, whether gratis
or for a fee, you must give the recipients all the rights that we gave
you. You must make sure that they, too, receive or can get the source
code. If you link other code with the library, you must provide
complete object files to the recipients, so that they can relink them
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That's all there is to it!

72
vendor/github.com/missdeer/golib/ic/convutf8.go generated vendored
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@ -1,72 +0,0 @@
// Package ic convert text between CJK and UTF-8 in pure Go way
package ic
import (
"bytes"
"errors"
"io/ioutil"
"strings"
"golang.org/x/text/encoding"
"golang.org/x/text/encoding/japanese"
"golang.org/x/text/encoding/korean"
"golang.org/x/text/encoding/simplifiedchinese"
"golang.org/x/text/encoding/traditionalchinese"
"golang.org/x/text/transform"
)
var (
transformers = map[string]encoding.Encoding{
"gbk": simplifiedchinese.GBK,
"cp936": simplifiedchinese.GBK,
"windows-936": simplifiedchinese.GBK,
"gb18030": simplifiedchinese.GB18030,
"gb2312": simplifiedchinese.HZGB2312,
"big5": traditionalchinese.Big5,
"big-5": traditionalchinese.Big5,
"cp950": traditionalchinese.Big5,
"euc-kr": korean.EUCKR,
"euckr": korean.EUCKR,
"cp949": korean.EUCKR,
"euc-jp": japanese.EUCJP,
"eucjp": japanese.EUCJP,
"shift-jis": japanese.ShiftJIS,
"iso-2022-jp": japanese.ISO2022JP,
"cp932": japanese.ISO2022JP,
"windows-31j": japanese.ISO2022JP,
}
)
// ToUTF8 convert from CJK encoding to UTF-8
func ToUTF8(from string, s []byte) ([]byte, error) {
var reader *transform.Reader
transformer, ok := transformers[strings.ToLower(from)]
if !ok {
return s, errors.New("Unsupported encoding " + from)
}
reader = transform.NewReader(bytes.NewReader(s), transformer.NewDecoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}
// FromUTF8 convert from UTF-8 encoding to CJK encoding
func FromUTF8(to string, s []byte) ([]byte, error) {
var reader *transform.Reader
transformer, ok := transformers[strings.ToLower(to)]
if !ok {
return s, errors.New("Unsupported encoding " + to)
}
reader = transform.NewReader(bytes.NewReader(s), transformer.NewEncoder())
d, e := ioutil.ReadAll(reader)
if e != nil {
return nil, e
}
return d, nil
}

31
vendor/github.com/missdeer/golib/ic/ic.go generated vendored
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@ -1,31 +0,0 @@
package ic
import "log"
// Convert convert bytes from CJK or UTF-8 to UTF-8 or CJK
func Convert(from string, to string, src []byte) []byte {
if to == "utf-8" {
out, e := ToUTF8(from, src)
if e == nil {
return out
}
log.Printf("converting from %s to UTF-8 failed: %v", from, e)
return src
}
if from == "utf-8" {
out, e := FromUTF8(to, src)
if e == nil {
return out
}
log.Printf("converting from UTF-8 to %s failed: %v", to, e)
return src
}
log.Println("only converting between CJK encodings and UTF-8 is supported")
return src
}
// ConvertString convert string from CJK or UTF-8 to UTF-8 or CJK
func ConvertString(from string, to string, src string) string {
return string(Convert(from, to, []byte(src)))
}

27
vendor/github.com/remyoudompheng/bigfft/LICENSE generated vendored Normal file
View File

@ -0,0 +1,27 @@
Copyright (c) 2012 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.

43
vendor/github.com/remyoudompheng/bigfft/README generated vendored Normal file
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@ -0,0 +1,43 @@
Benchmarking math/big vs. bigfft
Number size old ns/op new ns/op delta
1kb 1599 1640 +2.56%
10kb 61533 62170 +1.04%
50kb 833693 831051 -0.32%
100kb 2567995 2693864 +4.90%
1Mb 105237800 28446400 -72.97%
5Mb 1272947000 168554600 -86.76%
10Mb 3834354000 405120200 -89.43%
20Mb 11514488000 845081600 -92.66%
50Mb 49199945000 2893950000 -94.12%
100Mb 147599836000 5921594000 -95.99%
Benchmarking GMP vs bigfft
Number size GMP ns/op Go ns/op delta
1kb 536 1500 +179.85%
10kb 26669 50777 +90.40%
50kb 252270 658534 +161.04%
100kb 686813 2127534 +209.77%
1Mb 12100000 22391830 +85.06%
5Mb 111731843 133550600 +19.53%
10Mb 212314000 318595800 +50.06%
20Mb 490196000 671512800 +36.99%
50Mb 1280000000 2451476000 +91.52%
100Mb 2673000000 5228991000 +95.62%
Benchmarks were run on a Core 2 Quad Q8200 (2.33GHz).
FFT is enabled when input numbers are over 200kbits.
Scanning large decimal number from strings.
(math/big [n^2 complexity] vs bigfft [n^1.6 complexity], Core i5-4590)
Digits old ns/op new ns/op delta
1e3 9995 10876 +8.81%
1e4 175356 243806 +39.03%
1e5 9427422 6780545 -28.08%
1e6 1776707489 144867502 -91.85%
2e6 6865499995 346540778 -94.95%
5e6 42641034189 1069878799 -97.49%
10e6 151975273589 2693328580 -98.23%

36
vendor/github.com/remyoudompheng/bigfft/arith_386.s generated vendored Normal file
View File

@ -0,0 +1,36 @@
// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

38
vendor/github.com/remyoudompheng/bigfft/arith_amd64.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBQ instead of ADCQ and label names)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

36
vendor/github.com/remyoudompheng/bigfft/arith_arm.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
B math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
B math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
B math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
B math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
B math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
B math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
B math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
B math∕big·addMulVVW(SB)

36
vendor/github.com/remyoudompheng/bigfft/arith_arm64.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
B math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
B math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
B math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
B math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
B math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
B math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
B math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
B math∕big·addMulVVW(SB)

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vendor/github.com/remyoudompheng/bigfft/arith_decl.go generated vendored Normal file
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// Copyright 2010 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 bigfft
import . "math/big"
// implemented in arith_$GOARCH.s
func addVV(z, x, y []Word) (c Word)
func subVV(z, x, y []Word) (c Word)
func addVW(z, x []Word, y Word) (c Word)
func subVW(z, x []Word, y Word) (c Word)
func shlVU(z, x []Word, s uint) (c Word)
func mulAddVWW(z, x []Word, y, r Word) (c Word)
func addMulVVW(z, x []Word, y Word) (c Word)

40
vendor/github.com/remyoudompheng/bigfft/arith_mips64x.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
// +build mips64 mips64le
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBQ instead of ADCQ and label names)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

40
vendor/github.com/remyoudompheng/bigfft/arith_mipsx.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
// +build mips mipsle
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
JMP math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
// (same as addVV except for SBBQ instead of ADCQ and label names)
TEXT ·subVV(SB),NOSPLIT,$0
JMP math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
JMP math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
// (same as addVW except for SUBQ/SBBQ instead of ADDQ/ADCQ and label names)
TEXT ·subVW(SB),NOSPLIT,$0
JMP math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
JMP math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
JMP math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
JMP math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
JMP math∕big·addMulVVW(SB)

38
vendor/github.com/remyoudompheng/bigfft/arith_ppc64x.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
// +build ppc64 ppc64le
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
BR math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
BR math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
BR math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
BR math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
BR math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
BR math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
BR math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
BR math∕big·addMulVVW(SB)

37
vendor/github.com/remyoudompheng/bigfft/arith_s390x.s generated vendored Normal file
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// Trampolines to math/big assembly implementations.
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB),NOSPLIT,$0
BR math∕big·addVV(SB)
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB),NOSPLIT,$0
BR math∕big·subVV(SB)
// func addVW(z, x []Word, y Word) (c Word)
TEXT ·addVW(SB),NOSPLIT,$0
BR math∕big·addVW(SB)
// func subVW(z, x []Word, y Word) (c Word)
TEXT ·subVW(SB),NOSPLIT,$0
BR math∕big·subVW(SB)
// func shlVU(z, x []Word, s uint) (c Word)
TEXT ·shlVU(SB),NOSPLIT,$0
BR math∕big·shlVU(SB)
// func shrVU(z, x []Word, s uint) (c Word)
TEXT ·shrVU(SB),NOSPLIT,$0
BR math∕big·shrVU(SB)
// func mulAddVWW(z, x []Word, y, r Word) (c Word)
TEXT ·mulAddVWW(SB),NOSPLIT,$0
BR math∕big·mulAddVWW(SB)
// func addMulVVW(z, x []Word, y Word) (c Word)
TEXT ·addMulVVW(SB),NOSPLIT,$0
BR math∕big·addMulVVW(SB)

216
vendor/github.com/remyoudompheng/bigfft/fermat.go generated vendored Normal file
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package bigfft
import (
"math/big"
)
// Arithmetic modulo 2^n+1.
// A fermat of length w+1 represents a number modulo 2^(w*_W) + 1. The last
// word is zero or one. A number has at most two representatives satisfying the
// 0-1 last word constraint.
type fermat nat
func (n fermat) String() string { return nat(n).String() }
func (z fermat) norm() {
n := len(z) - 1
c := z[n]
if c == 0 {
return
}
if z[0] >= c {
z[n] = 0
z[0] -= c
return
}
// z[0] < z[n].
subVW(z, z, c) // Substract c
if c > 1 {
z[n] -= c - 1
c = 1
}
// Add back c.
if z[n] == 1 {
z[n] = 0
return
} else {
addVW(z, z, 1)
}
}
// Shift computes (x << k) mod (2^n+1).
func (z fermat) Shift(x fermat, k int) {
if len(z) != len(x) {
panic("len(z) != len(x) in Shift")
}
n := len(x) - 1
// Shift by n*_W is taking the opposite.
k %= 2 * n * _W
if k < 0 {
k += 2 * n * _W
}
neg := false
if k >= n*_W {
k -= n * _W
neg = true
}
kw, kb := k/_W, k%_W
z[n] = 1 // Add (-1)
if !neg {
for i := 0; i < kw; i++ {
z[i] = 0
}
// Shift left by kw words.
// x = a·2^(n-k) + b
// x<<k = (b<<k) - a
copy(z[kw:], x[:n-kw])
b := subVV(z[:kw+1], z[:kw+1], x[n-kw:])
if z[kw+1] > 0 {
z[kw+1] -= b
} else {
subVW(z[kw+1:], z[kw+1:], b)
}
} else {
for i := kw + 1; i < n; i++ {
z[i] = 0
}
// Shift left and negate, by kw words.
copy(z[:kw+1], x[n-kw:n+1]) // z_low = x_high
b := subVV(z[kw:n], z[kw:n], x[:n-kw]) // z_high -= x_low
z[n] -= b
}
// Add back 1.
if z[n] > 0 {
z[n]--
} else if z[0] < ^big.Word(0) {
z[0]++
} else {
addVW(z, z, 1)
}
// Shift left by kb bits
shlVU(z, z, uint(kb))
z.norm()
}
// ShiftHalf shifts x by k/2 bits the left. Shifting by 1/2 bit
// is multiplication by sqrt(2) mod 2^n+1 which is 2^(3n/4) - 2^(n/4).
// A temporary buffer must be provided in tmp.
func (z fermat) ShiftHalf(x fermat, k int, tmp fermat) {
n := len(z) - 1
if k%2 == 0 {
z.Shift(x, k/2)
return
}
u := (k - 1) / 2
a := u + (3*_W/4)*n
b := u + (_W/4)*n
z.Shift(x, a)
tmp.Shift(x, b)
z.Sub(z, tmp)
}
// Add computes addition mod 2^n+1.
func (z fermat) Add(x, y fermat) fermat {
if len(z) != len(x) {
panic("Add: len(z) != len(x)")
}
addVV(z, x, y) // there cannot be a carry here.
z.norm()
return z
}
// Sub computes substraction mod 2^n+1.
func (z fermat) Sub(x, y fermat) fermat {
if len(z) != len(x) {
panic("Add: len(z) != len(x)")
}
n := len(y) - 1
b := subVV(z[:n], x[:n], y[:n])
b += y[n]
// If b > 0, we need to subtract b<<n, which is the same as adding b.
z[n] = x[n]
if z[0] <= ^big.Word(0)-b {
z[0] += b
} else {
addVW(z, z, b)
}
z.norm()
return z
}
func (z fermat) Mul(x, y fermat) fermat {
if len(x) != len(y) {
panic("Mul: len(x) != len(y)")
}
n := len(x) - 1
if n < 30 {
z = z[:2*n+2]
basicMul(z, x, y)
z = z[:2*n+1]
} else {
var xi, yi, zi big.Int
xi.SetBits(x)
yi.SetBits(y)
zi.SetBits(z)
zb := zi.Mul(&xi, &yi).Bits()
if len(zb) <= n {
// Short product.
copy(z, zb)
for i := len(zb); i < len(z); i++ {
z[i] = 0
}
return z
}
z = zb
}
// len(z) is at most 2n+1.
if len(z) > 2*n+1 {
panic("len(z) > 2n+1")
}
// We now have
// z = z[:n] + 1<<(n*W) * z[n:2n+1]
// which normalizes to:
// z = z[:n] - z[n:2n] + z[2n]
c1 := big.Word(0)
if len(z) > 2*n {
c1 = addVW(z[:n], z[:n], z[2*n])
}
c2 := big.Word(0)
if len(z) >= 2*n {
c2 = subVV(z[:n], z[:n], z[n:2*n])
} else {
m := len(z) - n
c2 = subVV(z[:m], z[:m], z[n:])
c2 = subVW(z[m:n], z[m:n], c2)
}
// Restore carries.
// Substracting z[n] -= c2 is the same
// as z[0] += c2
z = z[:n+1]
z[n] = c1
c := addVW(z, z, c2)
if c != 0 {
panic("impossible")
}
z.norm()
return z
}
// copied from math/big
//
// basicMul multiplies x and y and leaves the result in z.
// The (non-normalized) result is placed in z[0 : len(x) + len(y)].
func basicMul(z, x, y fermat) {
// initialize z
for i := 0; i < len(z); i++ {
z[i] = 0
}
for i, d := range y {
if d != 0 {
z[len(x)+i] = addMulVVW(z[i:i+len(x)], x, d)
}
}
}

370
vendor/github.com/remyoudompheng/bigfft/fft.go generated vendored Normal file
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// Package bigfft implements multiplication of big.Int using FFT.
//
// The implementation is based on the Schönhage-Strassen method
// using integer FFT modulo 2^n+1.
package bigfft
import (
"math/big"
"unsafe"
)
const _W = int(unsafe.Sizeof(big.Word(0)) * 8)
type nat []big.Word
func (n nat) String() string {
v := new(big.Int)
v.SetBits(n)
return v.String()
}
// fftThreshold is the size (in words) above which FFT is used over
// Karatsuba from math/big.
//
// TestCalibrate seems to indicate a threshold of 60kbits on 32-bit
// arches and 110kbits on 64-bit arches.
var fftThreshold = 1800
// Mul computes the product x*y and returns z.
// It can be used instead of the Mul method of
// *big.Int from math/big package.
func Mul(x, y *big.Int) *big.Int {
xwords := len(x.Bits())
ywords := len(y.Bits())
if xwords > fftThreshold && ywords > fftThreshold {
return mulFFT(x, y)
}
return new(big.Int).Mul(x, y)
}
func mulFFT(x, y *big.Int) *big.Int {
var xb, yb nat = x.Bits(), y.Bits()
zb := fftmul(xb, yb)
z := new(big.Int)
z.SetBits(zb)
if x.Sign()*y.Sign() < 0 {
z.Neg(z)
}
return z
}
// A FFT size of K=1<<k is adequate when K is about 2*sqrt(N) where
// N = x.Bitlen() + y.Bitlen().
func fftmul(x, y nat) nat {
k, m := fftSize(x, y)
xp := polyFromNat(x, k, m)
yp := polyFromNat(y, k, m)
rp := xp.Mul(&yp)
return rp.Int()
}
// fftSizeThreshold[i] is the maximal size (in bits) where we should use
// fft size i.
var fftSizeThreshold = [...]int64{0, 0, 0,
4 << 10, 8 << 10, 16 << 10, // 5
32 << 10, 64 << 10, 1 << 18, 1 << 20, 3 << 20, // 10
8 << 20, 30 << 20, 100 << 20, 300 << 20, 600 << 20,
}
// returns the FFT length k, m the number of words per chunk
// such that m << k is larger than the number of words
// in x*y.
func fftSize(x, y nat) (k uint, m int) {
words := len(x) + len(y)
bits := int64(words) * int64(_W)
k = uint(len(fftSizeThreshold))
for i := range fftSizeThreshold {
if fftSizeThreshold[i] > bits {
k = uint(i)
break
}
}
// The 1<<k chunks of m words must have N bits so that
// 2^N-1 is larger than x*y. That is, m<<k > words
m = words>>k + 1
return
}
// valueSize returns the length (in words) to use for polynomial
// coefficients, to compute a correct product of polynomials P*Q
// where deg(P*Q) < K (== 1<<k) and where coefficients of P and Q are
// less than b^m (== 1 << (m*_W)).
// The chosen length (in bits) must be a multiple of 1 << (k-extra).
func valueSize(k uint, m int, extra uint) int {
// The coefficients of P*Q are less than b^(2m)*K
// so we need W * valueSize >= 2*m*W+K
n := 2*m*_W + int(k) // necessary bits
K := 1 << (k - extra)
if K < _W {
K = _W
}
n = ((n / K) + 1) * K // round to a multiple of K
return n / _W
}
// poly represents an integer via a polynomial in Z[x]/(x^K+1)
// where K is the FFT length and b^m is the computation basis 1<<(m*_W).
// If P = a[0] + a[1] x + ... a[n] x^(K-1), the associated natural number
// is P(b^m).
type poly struct {
k uint // k is such that K = 1<<k.
m int // the m such that P(b^m) is the original number.
a []nat // a slice of at most K m-word coefficients.
}
// polyFromNat slices the number x into a polynomial
// with 1<<k coefficients made of m words.
func polyFromNat(x nat, k uint, m int) poly {
p := poly{k: k, m: m}
length := len(x)/m + 1
p.a = make([]nat, length)
for i := range p.a {
if len(x) < m {
p.a[i] = make(nat, m)
copy(p.a[i], x)
break
}
p.a[i] = x[:m]
x = x[m:]
}
return p
}
// Int evaluates back a poly to its integer value.
func (p *poly) Int() nat {
length := len(p.a)*p.m + 1
if na := len(p.a); na > 0 {
length += len(p.a[na-1])
}
n := make(nat, length)
m := p.m
np := n
for i := range p.a {
l := len(p.a[i])
c := addVV(np[:l], np[:l], p.a[i])
if np[l] < ^big.Word(0) {
np[l] += c
} else {
addVW(np[l:], np[l:], c)
}
np = np[m:]
}
n = trim(n)
return n
}
func trim(n nat) nat {
for i := range n {
if n[len(n)-1-i] != 0 {
return n[:len(n)-i]
}
}
return nil
}
// Mul multiplies p and q modulo X^K-1, where K = 1<<p.k.
// The product is done via a Fourier transform.
func (p *poly) Mul(q *poly) poly {
// extra=2 because:
// * some power of 2 is a K-th root of unity when n is a multiple of K/2.
// * 2 itself is a square (see fermat.ShiftHalf)
n := valueSize(p.k, p.m, 2)
pv, qv := p.Transform(n), q.Transform(n)
rv := pv.Mul(&qv)
r := rv.InvTransform()
r.m = p.m
return r
}
// A polValues represents the value of a poly at the powers of a
// K-th root of unity θ=2^(l/2) in Z/(b^n+1)Z, where b^n = 2^(K/4*l).
type polValues struct {
k uint // k is such that K = 1<<k.
n int // the length of coefficients, n*_W a multiple of K/4.
values []fermat // a slice of K (n+1)-word values
}
// Transform evaluates p at θ^i for i = 0...K-1, where
// θ is a K-th primitive root of unity in Z/(b^n+1)Z.
func (p *poly) Transform(n int) polValues {
k := p.k
inputbits := make([]big.Word, (n+1)<<k)
input := make([]fermat, 1<<k)
// Now computed q(ω^i) for i = 0 ... K-1
valbits := make([]big.Word, (n+1)<<k)
values := make([]fermat, 1<<k)
for i := range values {
input[i] = inputbits[i*(n+1) : (i+1)*(n+1)]
if i < len(p.a) {
copy(input[i], p.a[i])
}
values[i] = fermat(valbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(values, input, false, n, k)
return polValues{k, n, values}
}
// InvTransform reconstructs p (modulo X^K - 1) from its
// values at θ^i for i = 0..K-1.
func (v *polValues) InvTransform() poly {
k, n := v.k, v.n
// Perform an inverse Fourier transform to recover p.
pbits := make([]big.Word, (n+1)<<k)
p := make([]fermat, 1<<k)
for i := range p {
p[i] = fermat(pbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(p, v.values, true, n, k)
// Divide by K, and untwist q to recover p.
u := make(fermat, n+1)
a := make([]nat, 1<<k)
for i := range p {
u.Shift(p[i], -int(k))
copy(p[i], u)
a[i] = nat(p[i])
}
return poly{k: k, m: 0, a: a}
}
// NTransform evaluates p at θω^i for i = 0...K-1, where
// θ is a (2K)-th primitive root of unity in Z/(b^n+1)Z
// and ω = θ².
func (p *poly) NTransform(n int) polValues {
k := p.k
if len(p.a) >= 1<<k {
panic("Transform: len(p.a) >= 1<<k")
}
// θ is represented as a shift.
θshift := (n * _W) >> k
// p(x) = a_0 + a_1 x + ... + a_{K-1} x^(K-1)
// p(θx) = q(x) where
// q(x) = a_0 + θa_1 x + ... + θ^(K-1) a_{K-1} x^(K-1)
//
// Twist p by θ to obtain q.
tbits := make([]big.Word, (n+1)<<k)
twisted := make([]fermat, 1<<k)
src := make(fermat, n+1)
for i := range twisted {
twisted[i] = fermat(tbits[i*(n+1) : (i+1)*(n+1)])
if i < len(p.a) {
for i := range src {
src[i] = 0
}
copy(src, p.a[i])
twisted[i].Shift(src, θshift*i)
}
}
// Now computed q(ω^i) for i = 0 ... K-1
valbits := make([]big.Word, (n+1)<<k)
values := make([]fermat, 1<<k)
for i := range values {
values[i] = fermat(valbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(values, twisted, false, n, k)
return polValues{k, n, values}
}
// InvTransform reconstructs a polynomial from its values at
// roots of x^K+1. The m field of the returned polynomial
// is unspecified.
func (v *polValues) InvNTransform() poly {
k := v.k
n := v.n
θshift := (n * _W) >> k
// Perform an inverse Fourier transform to recover q.
qbits := make([]big.Word, (n+1)<<k)
q := make([]fermat, 1<<k)
for i := range q {
q[i] = fermat(qbits[i*(n+1) : (i+1)*(n+1)])
}
fourier(q, v.values, true, n, k)
// Divide by K, and untwist q to recover p.
u := make(fermat, n+1)
a := make([]nat, 1<<k)
for i := range q {
u.Shift(q[i], -int(k)-i*θshift)
copy(q[i], u)
a[i] = nat(q[i])
}
return poly{k: k, m: 0, a: a}
}
// fourier performs an unnormalized Fourier transform
// of src, a length 1<<k vector of numbers modulo b^n+1
// where b = 1<<_W.
func fourier(dst []fermat, src []fermat, backward bool, n int, k uint) {
var rec func(dst, src []fermat, size uint)
tmp := make(fermat, n+1) // pre-allocate temporary variables.
tmp2 := make(fermat, n+1) // pre-allocate temporary variables.
// The recursion function of the FFT.
// The root of unity used in the transform is ω=1<<(ω2shift/2).
// The source array may use shifted indices (i.e. the i-th
// element is src[i << idxShift]).
rec = func(dst, src []fermat, size uint) {
idxShift := k - size
ω2shift := (4 * n * _W) >> size
if backward {
ω2shift = -ω2shift
}
// Easy cases.
if len(src[0]) != n+1 || len(dst[0]) != n+1 {
panic("len(src[0]) != n+1 || len(dst[0]) != n+1")
}
switch size {
case 0:
copy(dst[0], src[0])
return
case 1:
dst[0].Add(src[0], src[1<<idxShift]) // dst[0] = src[0] + src[1]
dst[1].Sub(src[0], src[1<<idxShift]) // dst[1] = src[0] - src[1]
return
}
// Let P(x) = src[0] + src[1<<idxShift] * x + ... + src[K-1 << idxShift] * x^(K-1)
// The P(x) = Q1(x²) + x*Q2(x²)
// where Q1's coefficients are src with indices shifted by 1
// where Q2's coefficients are src[1<<idxShift:] with indices shifted by 1
// Split destination vectors in halves.
dst1 := dst[:1<<(size-1)]
dst2 := dst[1<<(size-1):]
// Transform Q1 and Q2 in the halves.
rec(dst1, src, size-1)
rec(dst2, src[1<<idxShift:], size-1)
// Reconstruct P's transform from transforms of Q1 and Q2.
// dst[i] is dst1[i] + ω^i * dst2[i]
// dst[i + 1<<(k-1)] is dst1[i] + ω^(i+K/2) * dst2[i]
//
for i := range dst1 {
tmp.ShiftHalf(dst2[i], i*ω2shift, tmp2) // ω^i * dst2[i]
dst2[i].Sub(dst1[i], tmp)
dst1[i].Add(dst1[i], tmp)
}
}
rec(dst, src, k)
}
// Mul returns the pointwise product of p and q.
func (p *polValues) Mul(q *polValues) (r polValues) {
n := p.n
r.k, r.n = p.k, p.n
r.values = make([]fermat, len(p.values))
bits := make([]big.Word, len(p.values)*(n+1))
buf := make(fermat, 8*n)
for i := range r.values {
r.values[i] = bits[i*(n+1) : (i+1)*(n+1)]
z := buf.Mul(p.values[i], q.values[i])
copy(r.values[i], z)
}
return
}

70
vendor/github.com/remyoudompheng/bigfft/scan.go generated vendored Normal file
View File

@ -0,0 +1,70 @@
package bigfft
import (
"math/big"
)
// FromDecimalString converts the base 10 string
// representation of a natural (non-negative) number
// into a *big.Int.
// Its asymptotic complexity is less than quadratic.
func FromDecimalString(s string) *big.Int {
var sc scanner
z := new(big.Int)
sc.scan(z, s)
return z
}
type scanner struct {
// powers[i] is 10^(2^i * quadraticScanThreshold).
powers []*big.Int
}
func (s *scanner) chunkSize(size int) (int, *big.Int) {
if size <= quadraticScanThreshold {
panic("size < quadraticScanThreshold")
}
pow := uint(0)
for n := size; n > quadraticScanThreshold; n /= 2 {
pow++
}
// threshold * 2^(pow-1) <= size < threshold * 2^pow
return quadraticScanThreshold << (pow - 1), s.power(pow - 1)
}
func (s *scanner) power(k uint) *big.Int {
for i := len(s.powers); i <= int(k); i++ {
z := new(big.Int)
if i == 0 {
if quadraticScanThreshold%14 != 0 {
panic("quadraticScanThreshold % 14 != 0")
}
z.Exp(big.NewInt(1e14), big.NewInt(quadraticScanThreshold/14), nil)
} else {
z.Mul(s.powers[i-1], s.powers[i-1])
}
s.powers = append(s.powers, z)
}
return s.powers[k]
}
func (s *scanner) scan(z *big.Int, str string) {
if len(str) <= quadraticScanThreshold {
z.SetString(str, 10)
return
}
sz, pow := s.chunkSize(len(str))
// Scan the left half.
s.scan(z, str[:len(str)-sz])
// FIXME: reuse temporaries.
left := Mul(z, pow)
// Scan the right half
s.scan(z, str[len(str)-sz:])
z.Add(z, left)
}
// quadraticScanThreshold is the number of digits
// below which big.Int.SetString is more efficient
// than subquadratic algorithms.
// 1232 digits fit in 4096 bits.
const quadraticScanThreshold = 1232

30
vendor/github.com/skip2/go-qrcode/README.md generated vendored
View File

@ -18,20 +18,26 @@ A command-line tool `qrcode` will be built into `$GOPATH/bin/`.
import qrcode "github.com/skip2/go-qrcode"
- **Create a 256x256 PNG image:**
- **Create a PNG image:**
var png []byte
png, err := qrcode.Encode("https://example.org", qrcode.Medium, 256)
- **Create a 256x256 PNG image and write to a file:**
- **Create a PNG image and write to a file:**
err := qrcode.WriteFile("https://example.org", qrcode.Medium, 256, "qr.png")
- **Create a 256x256 PNG image with custom colors and write to file:**
- **Create a PNG image with custom colors and write to file:**
err := qrcode.WriteColorFile("https://example.org", qrcode.Medium, 256, color.Black, color.White, "qr.png")
All examples use the qrcode.Medium error Recovery Level and create a fixed 256x256px size QR Code. The last function creates a white on black instead of black on white QR Code.
All examples use the qrcode.Medium error Recovery Level and create a fixed
256x256px size QR Code. The last function creates a white on black instead of black
on white QR Code.
The maximum capacity of a QR Code varies according to the content encoded and
the error recovery level. The maximum capacity is 2,953 bytes, 4,296
alphanumeric characters, 7,089 numeric digits, or a combination of these.
## Documentation
@ -50,13 +56,10 @@ qrcode -- QR Code encoder in Go
https://github.com/skip2/go-qrcode
Flags:
-d disable QR Code border
-i invert black and white
-o string
out PNG file prefix, empty for stdout
out PNG file prefix, empty for stdout
-s int
image size (pixel) (default 256)
-t print as text-art on stdout
image size (pixel) (default 256)
Usage:
1. Arguments except for flags are joined by " " and used to generate QR code.
@ -68,16 +71,7 @@ Usage:
2. Save to file if "display" not available:
qrcode "homepage: https://github.com/skip2/go-qrcode" > out.png
```
## Maximum capacity
The maximum capacity of a QR Code varies according to the content encoded and the error recovery level. The maximum capacity is 2,953 bytes, 4,296 alphanumeric characters, 7,089 numeric digits, or a combination of these.
## Borderless QR Codes
To aid QR Code reading software, QR codes have a built in whitespace border.
If you know what you're doing, and don't want a border, see https://gist.github.com/skip2/7e3d8a82f5317df9be437f8ec8ec0b7d for how to do it. It's still recommended you include a border manually.
## Links

35
vendor/github.com/skip2/go-qrcode/encoder.go generated vendored
View File

@ -172,7 +172,7 @@ func (d *dataEncoder) encode(data []byte) (*bitset.Bitset, error) {
}
// Classify data into unoptimised segments.
highestRequiredMode := d.classifyDataModes()
d.classifyDataModes()
// Optimise segments.
err := d.optimiseDataModes()
@ -180,25 +180,6 @@ func (d *dataEncoder) encode(data []byte) (*bitset.Bitset, error) {
return nil, err
}
// Check if a single byte encoded segment would be more efficient.
optimizedLength := 0
for _, s := range d.optimised {
length, err := d.encodedLength(s.dataMode, len(s.data))
if err != nil {
return nil, err
}
optimizedLength += length
}
singleByteSegmentLength, err := d.encodedLength(highestRequiredMode, len(d.data))
if err != nil {
return nil, err
}
if singleByteSegmentLength <= optimizedLength {
d.optimised = []segment{segment{dataMode: highestRequiredMode, data: d.data}}
}
// Encode data.
encoded := bitset.New()
for _, s := range d.optimised {
@ -211,15 +192,9 @@ func (d *dataEncoder) encode(data []byte) (*bitset.Bitset, error) {
// classifyDataModes classifies the raw data into unoptimised segments.
// e.g. "123ZZ#!#!" =>
// [numeric, 3, "123"] [alphanumeric, 2, "ZZ"] [byte, 4, "#!#!"].
//
// Returns the highest data mode needed to encode the data. e.g. for a mixed
// numeric/alphanumeric input, the highest is alphanumeric.
//
// dataModeNone < dataModeNumeric < dataModeAlphanumeric < dataModeByte
func (d *dataEncoder) classifyDataModes() dataMode {
func (d *dataEncoder) classifyDataModes() {
var start int
mode := dataModeNone
highestRequiredMode := mode
for i, v := range d.data {
newMode := dataModeNone
@ -242,15 +217,9 @@ func (d *dataEncoder) classifyDataModes() dataMode {
mode = newMode
}
if newMode > highestRequiredMode {
highestRequiredMode = newMode
}
}
d.actual = append(d.actual, segment{dataMode: mode, data: d.data[start:len(d.data)]})
return highestRequiredMode
}
// optimiseDataModes optimises the list of segments to reduce the overall output

67
vendor/github.com/skip2/go-qrcode/qrcode.go generated vendored
View File

@ -51,7 +51,6 @@ package qrcode
import (
"bytes"
"errors"
"fmt"
"image"
"image/color"
"image/png"
@ -136,9 +135,6 @@ type QRCode struct {
ForegroundColor color.Color
BackgroundColor color.Color
// Disable the QR Code border.
DisableBorder bool
encoder *dataEncoder
version qrCodeVersion
@ -197,16 +193,12 @@ func New(content string, level RecoveryLevel) (*QRCode, error) {
version: *chosenVersion,
}
q.encode(chosenVersion.numTerminatorBitsRequired(encoded.Len()))
return q, nil
}
// NewWithForcedVersion constructs a QRCode of a specific version.
//
// var q *qrcode.QRCode
// q, err := qrcode.NewWithForcedVersion("my content", 25, qrcode.Medium)
//
// An error occurs in case of invalid version.
func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QRCode, error) {
func newWithForcedVersion(content string, version int, level RecoveryLevel) (*QRCode, error) {
var encoder *dataEncoder
switch {
@ -217,7 +209,7 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
case version >= 27 && version <= 40:
encoder = newDataEncoder(dataEncoderType27To40)
default:
return nil, fmt.Errorf("Invalid version %d (expected 1-40 inclusive)", version)
log.Fatalf("Invalid version %d (expected 1-40 inclusive)", version)
}
var encoded *bitset.Bitset
@ -233,13 +225,6 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
return nil, errors.New("cannot find QR Code version")
}
if encoded.Len() > chosenVersion.numDataBits() {
return nil, fmt.Errorf("Cannot encode QR code: content too large for fixed size QR Code version %d (encoded length is %d bits, maximum length is %d bits)",
version,
encoded.Len(),
chosenVersion.numDataBits())
}
q := &QRCode{
Content: content,
@ -254,6 +239,8 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
version: *chosenVersion,
}
q.encode(chosenVersion.numTerminatorBitsRequired(encoded.Len()))
return q, nil
}
@ -264,9 +251,6 @@ func NewWithForcedVersion(content string, version int, level RecoveryLevel) (*QR
// The bitmap includes the required "quiet zone" around the QR Code to aid
// decoding.
func (q *QRCode) Bitmap() [][]bool {
// Build QR code.
q.encode()
return q.symbol.bitmap()
}
@ -284,9 +268,6 @@ func (q *QRCode) Bitmap() [][]bool {
// negative number to increase the scale of the image. e.g. a size of -5 causes
// each module (QR Code "pixel") to be 5px in size.
func (q *QRCode) Image(size int) image.Image {
// Build QR code.
q.encode()
// Minimum pixels (both width and height) required.
realSize := q.symbol.size
@ -301,7 +282,12 @@ func (q *QRCode) Image(size int) image.Image {
size = realSize
}
// Output image.
// Size of each module drawn.
pixelsPerModule := size / realSize
// Center the symbol within the image.
offset := (size - realSize*pixelsPerModule) / 2
rect := image.Rectangle{Min: image.Point{0, 0}, Max: image.Point{size, size}}
// Saves a few bytes to have them in this order
@ -309,21 +295,18 @@ func (q *QRCode) Image(size int) image.Image {
img := image.NewPaletted(rect, p)
fgClr := uint8(img.Palette.Index(q.ForegroundColor))
// QR code bitmap.
bitmap := q.symbol.bitmap()
// Map each image pixel to the nearest QR code module.
modulesPerPixel := float64(realSize) / float64(size)
for y := 0; y < size; y++ {
y2 := int(float64(y) * modulesPerPixel)
for x := 0; x < size; x++ {
x2 := int(float64(x) * modulesPerPixel)
v := bitmap[y2][x2]
for y, row := range bitmap {
for x, v := range row {
if v {
pos := img.PixOffset(x, y)
img.Pix[pos] = fgClr
startX := x*pixelsPerModule + offset
startY := y*pixelsPerModule + offset
for i := startX; i < startX+pixelsPerModule; i++ {
for j := startY; j < startY+pixelsPerModule; j++ {
pos := img.PixOffset(i, j)
img.Pix[pos] = fgClr
}
}
}
}
}
@ -388,9 +371,7 @@ func (q *QRCode) WriteFile(size int, filename string) error {
// encode completes the steps required to encode the QR Code. These include
// adding the terminator bits and padding, splitting the data into blocks and
// applying the error correction, and selecting the best data mask.
func (q *QRCode) encode() {
numTerminatorBits := q.version.numTerminatorBitsRequired(q.data.Len())
func (q *QRCode) encode(numTerminatorBits int) {
q.addTerminatorBits(numTerminatorBits)
q.addPadding()
@ -403,7 +384,7 @@ func (q *QRCode) encode() {
var s *symbol
var err error
s, err = buildRegularSymbol(q.version, mask, encoded, !q.DisableBorder)
s, err = buildRegularSymbol(q.version, mask, encoded)
if err != nil {
log.Panic(err.Error())

10
vendor/github.com/skip2/go-qrcode/regular_symbol.go generated vendored
View File

@ -105,19 +105,13 @@ var (
)
func buildRegularSymbol(version qrCodeVersion, mask int,
data *bitset.Bitset, includeQuietZone bool) (*symbol, error) {
quietZoneSize := 0
if includeQuietZone {
quietZoneSize = version.quietZoneSize()
}
data *bitset.Bitset) (*symbol, error) {
m := &regularSymbol{
version: version,
mask: mask,
data: data,
symbol: newSymbol(version.symbolSize(), quietZoneSize),
symbol: newSymbol(version.symbolSize(), version.quietZoneSize()),
size: version.symbolSize(),
}

674
vendor/go.mau.fi/libsignal/LICENSE vendored Normal file
View File

@ -0,0 +1,674 @@
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The GNU General Public License is a free, copyleft license for
software and other kinds of works.
The licenses for most software and other practical works are designed
to take away your freedom to share and change the works. By contrast,
the GNU General Public License is intended to guarantee your freedom to
share and change all versions of a program--to make sure it remains free
software for all its users. We, the Free Software Foundation, use the
GNU General Public License for most of our software; it applies also to
any other work released this way by its authors. You can apply it to
your programs, too.
When we speak of free software, we are referring to freedom, not
price. Our General Public Licenses are designed to make sure that you
have the freedom to distribute copies of free software (and charge for
them if you wish), that you receive source code or can get it if you
want it, that you can change the software or use pieces of it in new
free programs, and that you know you can do these things.
To protect your rights, we need to prevent others from denying you
these rights or asking you to surrender the rights. Therefore, you have
certain responsibilities if you distribute copies of the software, or if
you modify it: responsibilities to respect the freedom of others.
For example, if you distribute copies of such a program, whether
gratis or for a fee, you must pass on to the recipients the same
freedoms that you received. You must make sure that they, too, receive
or can get the source code. And you must show them these terms so they
know their rights.
Developers that use the GNU GPL protect your rights with two steps:
(1) assert copyright on the software, and (2) offer you this License
giving you legal permission to copy, distribute and/or modify it.
For the developers' and authors' protection, the GPL clearly explains
that there is no warranty for this free software. For both users' and
authors' sake, the GPL requires that modified versions be marked as
changed, so that their problems will not be attributed erroneously to
authors of previous versions.
Some devices are designed to deny users access to install or run
modified versions of the software inside them, although the manufacturer
can do so. This is fundamentally incompatible with the aim of
protecting users' freedom to change the software. The systematic
pattern of such abuse occurs in the area of products for individuals to
use, which is precisely where it is most unacceptable. Therefore, we
have designed this version of the GPL to prohibit the practice for those
products. If such problems arise substantially in other domains, we
stand ready to extend this provision to those domains in future versions
of the GPL, as needed to protect the freedom of users.
Finally, every program is threatened constantly by software patents.
States should not allow patents to restrict development and use of
software on general-purpose computers, but in those that do, we wish to
avoid the special danger that patents applied to a free program could
make it effectively proprietary. To prevent this, the GPL assures that
patents cannot be used to render the program non-free.
The precise terms and conditions for copying, distribution and
modification follow.
TERMS AND CONDITIONS
0. Definitions.
"This License" refers to version 3 of the GNU General Public License.
"Copyright" also means copyright-like laws that apply to other kinds of
works, such as semiconductor masks.
"The Program" refers to any copyrightable work licensed under this
License. Each licensee is addressed as "you". "Licensees" and
"recipients" may be individuals or organizations.
To "modify" a work means to copy from or adapt all or part of the work
in a fashion requiring copyright permission, other than the making of an
exact copy. The resulting work is called a "modified version" of the
earlier work or a work "based on" the earlier work.
A "covered work" means either the unmodified Program or a work based
on the Program.
To "propagate" a work means to do anything with it that, without
permission, would make you directly or secondarily liable for
infringement under applicable copyright law, except executing it on a
computer or modifying a private copy. Propagation includes copying,
distribution (with or without modification), making available to the
public, and in some countries other activities as well.
To "convey" a work means any kind of propagation that enables other
parties to make or receive copies. Mere interaction with a user through
a computer network, with no transfer of a copy, is not conveying.
An interactive user interface displays "Appropriate Legal Notices"
to the extent that it includes a convenient and prominently visible
feature that (1) displays an appropriate copyright notice, and (2)
tells the user that there is no warranty for the work (except to the
extent that warranties are provided), that licensees may convey the
work under this License, and how to view a copy of this License. If
the interface presents a list of user commands or options, such as a
menu, a prominent item in the list meets this criterion.
1. Source Code.
The "source code" for a work means the preferred form of the work
for making modifications to it. "Object code" means any non-source
form of a work.
A "Standard Interface" means an interface that either is an official
standard defined by a recognized standards body, or, in the case of
interfaces specified for a particular programming language, one that
is widely used among developers working in that language.
The "System Libraries" of an executable work include anything, other
than the work as a whole, that (a) is included in the normal form of
packaging a Major Component, but which is not part of that Major
Component, and (b) serves only to enable use of the work with that
Major Component, or to implement a Standard Interface for which an
implementation is available to the public in source code form. A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
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the work, and the source code for shared libraries and dynamically
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such as by intimate data communication or control flow between those
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The Corresponding Source need not include anything that users
can regenerate automatically from other parts of the Corresponding
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The Corresponding Source for a work in source code form is that
same work.
2. Basic Permissions.
All rights granted under this License are granted for the term of
copyright on the Program, and are irrevocable provided the stated
conditions are met. This License explicitly affirms your unlimited
permission to run the unmodified Program. The output from running a
covered work is covered by this License only if the output, given its
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rights of fair use or other equivalent, as provided by copyright law.
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How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
libsignal-protocol-go
Copyright (C) 2017 RadicalApp LLC
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
libsignal-protocol-go Copyright (C) 2017 RadicalApp LLC
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

101
vendor/go.mau.fi/libsignal/cipher/Cbc.go vendored Normal file
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@ -0,0 +1,101 @@
/*
CBC describes a block cipher mode. In cryptography, a block cipher mode of operation is an algorithm that uses a
block cipher to provide an information service such as confidentiality or authenticity. A block cipher by itself
is only suitable for the secure cryptographic transformation (encryption or decryption) of one fixed-length group of
bits called a block. A mode of operation describes how to repeatedly apply a cipher's single-block operation to
securely transform amounts of data larger than a block.
This package simplifies the usage of AES-256-CBC.
*/
package cipher
/*
Some code is provided by the GitHub user locked (github.com/locked):
https://gist.github.com/locked/b066aa1ddeb2b28e855e
Thanks!
*/
import (
"bytes"
"crypto/aes"
"crypto/cipher"
"crypto/rand"
"fmt"
"io"
)
/*
Decrypt is a function that decrypts a given cipher text with a provided key and initialization vector(iv).
*/
func DecryptCbc(iv, key, ciphertext []byte) ([]byte, error) {
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
if len(ciphertext) < aes.BlockSize {
return nil, fmt.Errorf("ciphertext is shorter then block size: %d / %d", len(ciphertext), aes.BlockSize)
}
if iv == nil {
iv = ciphertext[:aes.BlockSize]
ciphertext = ciphertext[aes.BlockSize:]
}
cbc := cipher.NewCBCDecrypter(block, iv)
cbc.CryptBlocks(ciphertext, ciphertext)
return unpad(ciphertext)
}
/*
Encrypt is a function that encrypts plaintext with a given key and an optional initialization vector(iv).
*/
func EncryptCbc(iv, key, plaintext []byte) ([]byte, error) {
plaintext = pad(plaintext, aes.BlockSize)
if len(plaintext)%aes.BlockSize != 0 {
return nil, fmt.Errorf("plaintext is not a multiple of the block size: %d / %d", len(plaintext), aes.BlockSize)
}
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
var ciphertext []byte
if iv == nil {
ciphertext = make([]byte, aes.BlockSize+len(plaintext))
iv := ciphertext[:aes.BlockSize]
if _, err := io.ReadFull(rand.Reader, iv); err != nil {
return nil, err
}
cbc := cipher.NewCBCEncrypter(block, iv)
cbc.CryptBlocks(ciphertext[aes.BlockSize:], plaintext)
} else {
ciphertext = make([]byte, len(plaintext))
cbc := cipher.NewCBCEncrypter(block, iv)
cbc.CryptBlocks(ciphertext, plaintext)
}
return ciphertext, nil
}
func pad(ciphertext []byte, blockSize int) []byte {
padding := blockSize - len(ciphertext)%blockSize
padtext := bytes.Repeat([]byte{byte(padding)}, padding)
return append(ciphertext, padtext...)
}
func unpad(src []byte) ([]byte, error) {
length := len(src)
padLen := int(src[length-1])
if padLen > length {
return nil, fmt.Errorf("padding is greater then the length: %d / %d", padLen, length)
}
return src[:(length - padLen)], nil
}

105
vendor/go.mau.fi/libsignal/cipher/Cipher.go vendored Normal file
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// Package cipher is a package for common encrypt/decrypt of symmetric key messages.
package cipher
import (
"bytes"
"crypto/aes"
"crypto/cipher"
"errors"
)
// Decrypt will use the given key, iv, and ciphertext and return
// the plaintext bytes.
func Decrypt(iv, key, ciphertext []byte) ([]byte, error) {
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
if len(ciphertext) < aes.BlockSize {
return nil, errors.New("ciphertext too short")
}
cbc := cipher.NewCBCDecrypter(block, iv)
cbc.CryptBlocks(ciphertext, ciphertext)
unpaddedText, err := pkcs7Unpad(ciphertext, aes.BlockSize)
if err != nil {
return nil, err
}
return unpaddedText, nil
}
// Encrypt will use the given iv, key, and plaintext bytes
// and return ciphertext bytes.
func Encrypt(iv, key, plaintext []byte) ([]byte, error) {
block, err := aes.NewCipher(key)
if err != nil {
return nil, err
}
paddedText, err := pkcs7Pad(plaintext, block.BlockSize())
if err != nil {
return nil, err
}
ciphertext := make([]byte, len(paddedText))
mode := cipher.NewCBCEncrypter(block, iv)
mode.CryptBlocks(ciphertext, paddedText)
return ciphertext, nil
}
// PKCS7 padding.
// PKCS7 errors.
var (
// ErrInvalidBlockSize indicates hash blocksize <= 0.
ErrInvalidBlockSize = errors.New("invalid blocksize")
// ErrInvalidPKCS7Data indicates bad input to PKCS7 pad or unpad.
ErrInvalidPKCS7Data = errors.New("invalid PKCS7 data (empty or not padded)")
// ErrInvalidPKCS7Padding indicates PKCS7 unpad fails to bad input.
ErrInvalidPKCS7Padding = errors.New("invalid padding on input")
)
// pkcs7Pad right-pads the given byte slice with 1 to n bytes, where
// n is the block size. The size of the result is x times n, where x
// is at least 1.
func pkcs7Pad(b []byte, blocksize int) ([]byte, error) {
if blocksize <= 0 {
return nil, ErrInvalidBlockSize
}
if b == nil || len(b) == 0 {
return nil, ErrInvalidPKCS7Data
}
n := blocksize - (len(b) % blocksize)
pb := make([]byte, len(b)+n)
copy(pb, b)
copy(pb[len(b):], bytes.Repeat([]byte{byte(n)}, n))
return pb, nil
}
// pkcs7Unpad validates and unpads data from the given bytes slice.
// The returned value will be 1 to n bytes smaller depending on the
// amount of padding, where n is the block size.
func pkcs7Unpad(b []byte, blocksize int) ([]byte, error) {
if blocksize <= 0 {
return nil, ErrInvalidBlockSize
}
if b == nil || len(b) == 0 {
return nil, ErrInvalidPKCS7Data
}
if len(b)%blocksize != 0 {
return nil, ErrInvalidPKCS7Padding
}
c := b[len(b)-1]
n := int(c)
if n == 0 || n > len(b) {
return nil, ErrInvalidPKCS7Padding
}
for i := 0; i < n; i++ {
if b[len(b)-n+i] != c {
return nil, ErrInvalidPKCS7Padding
}
}
return b[:len(b)-n], nil
}

109
vendor/go.mau.fi/libsignal/ecc/Curve.go vendored Normal file
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package ecc
import (
"crypto/rand"
"errors"
"fmt"
"io"
"golang.org/x/crypto/curve25519"
"go.mau.fi/libsignal/logger"
)
// DjbType is the Diffie-Hellman curve type (curve25519) created by D. J. Bernstein.
const DjbType = 0x05
var ErrBadKeyType = errors.New("bad key type")
// DecodePoint will take the given bytes and offset and return an ECPublicKeyable object.
// This is used to check the byte at the given offset in the byte array for a special
// "type" byte that will determine the key type. Currently only DJB EC keys are supported.
func DecodePoint(bytes []byte, offset int) (ECPublicKeyable, error) {
keyType := bytes[offset] & 0xFF
switch keyType {
case DjbType:
keyBytes := [32]byte{}
copy(keyBytes[:], bytes[offset+1:])
return NewDjbECPublicKey(keyBytes), nil
default:
return nil, fmt.Errorf("%w %d", ErrBadKeyType, keyType)
}
}
func CreateKeyPair(privateKey []byte) *ECKeyPair {
var private, public [32]byte
copy(private[:], privateKey)
private[0] &= 248
private[31] &= 127
private[31] |= 64
curve25519.ScalarBaseMult(&public, &private)
// Put data into our keypair struct
djbECPub := NewDjbECPublicKey(public)
djbECPriv := NewDjbECPrivateKey(private)
keypair := NewECKeyPair(djbECPub, djbECPriv)
logger.Debug("Returning keypair: ", keypair)
return keypair
}
// GenerateKeyPair returns an EC Key Pair.
func GenerateKeyPair() (*ECKeyPair, error) {
// logger.Debug("Generating EC Key Pair...")
// Get cryptographically secure random numbers.
random := rand.Reader
// Create a byte array for our public and private keys.
var private, public [32]byte
// Generate some random data
_, err := io.ReadFull(random, private[:])
if err != nil {
return nil, err
}
// Documented at: http://cr.yp.to/ecdh.html
private[0] &= 248
private[31] &= 127
private[31] |= 64
curve25519.ScalarBaseMult(&public, &private)
// Put data into our keypair struct
djbECPub := NewDjbECPublicKey(public)
djbECPriv := NewDjbECPrivateKey(private)
keypair := NewECKeyPair(djbECPub, djbECPriv)
// logger.Debug("Returning keypair: ", keypair)
return keypair, nil
}
// VerifySignature verifies that the message was signed with the given key.
func VerifySignature(signingKey ECPublicKeyable, message []byte, signature [64]byte) bool {
logger.Debug("Verifying signature of bytes: ", message)
publicKey := signingKey.PublicKey()
valid := verify(publicKey, message, &signature)
logger.Debug("Signature valid: ", valid)
return valid
}
// CalculateSignature signs a message with the given private key.
func CalculateSignature(signingKey ECPrivateKeyable, message []byte) [64]byte {
logger.Debug("Signing bytes with signing key")
// Get cryptographically secure random numbers.
var random [64]byte
r := rand.Reader
io.ReadFull(r, random[:])
// Get the private key.
privateKey := signingKey.Serialize()
// Sign the message.
signature := sign(&privateKey, message, random)
return *signature
}

29
vendor/go.mau.fi/libsignal/ecc/DjbECPublicKey.go vendored Normal file
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package ecc
// NewDjbECPublicKey creates a new Curve25519 public key with the given bytes.
func NewDjbECPublicKey(publicKey [32]byte) *DjbECPublicKey {
key := DjbECPublicKey{
publicKey: publicKey,
}
return &key
}
// DjbECPublicKey implements the ECPublicKey interface and uses Curve25519.
type DjbECPublicKey struct {
publicKey [32]byte
}
// PublicKey returns the EC public key as a byte array.
func (d *DjbECPublicKey) PublicKey() [32]byte {
return d.publicKey
}
// Serialize returns the public key prepended by the DjbType value.
func (d *DjbECPublicKey) Serialize() []byte {
return append([]byte{DjbType}, d.publicKey[:]...)
}
// Type returns the DjbType value.
func (d *DjbECPublicKey) Type() int {
return DjbType
}

29
vendor/go.mau.fi/libsignal/ecc/DkbECPrivateKey.go vendored Normal file
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package ecc
// NewDjbECPrivateKey returns a new EC private key with the given bytes.
func NewDjbECPrivateKey(key [32]byte) *DjbECPrivateKey {
private := DjbECPrivateKey{
privateKey: key,
}
return &private
}
// DjbECPrivateKey implements the ECPrivateKey interface and uses Curve25519.
type DjbECPrivateKey struct {
privateKey [32]byte
}
// PrivateKey returns the private key as a byte-array.
func (d *DjbECPrivateKey) PrivateKey() [32]byte {
return d.privateKey
}
// Serialize returns the private key as a byte-array.
func (d *DjbECPrivateKey) Serialize() [32]byte {
return d.privateKey
}
// Type returns the EC type value.
func (d *DjbECPrivateKey) Type() int {
return DjbType
}

3
vendor/go.mau.fi/libsignal/ecc/Doc.go vendored Normal file
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// Package ecc provides a way to generate, sign, and use Elliptic-Curve
// X25519 Cryptography keys.
package ecc

27
vendor/go.mau.fi/libsignal/ecc/ECKeyPair.go vendored Normal file
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package ecc
// NewECKeyPair returns a new elliptic curve keypair given the specified public and private keys.
func NewECKeyPair(publicKey ECPublicKeyable, privateKey ECPrivateKeyable) *ECKeyPair {
keypair := ECKeyPair{
publicKey: publicKey,
privateKey: privateKey,
}
return &keypair
}
// ECKeyPair is a combination of both public and private elliptic curve keys.
type ECKeyPair struct {
publicKey ECPublicKeyable
privateKey ECPrivateKeyable
}
// PublicKey returns the public key from the key pair.
func (e *ECKeyPair) PublicKey() ECPublicKeyable {
return e.publicKey
}
// PrivateKey returns the private key from the key pair.
func (e *ECKeyPair) PrivateKey() ECPrivateKeyable {
return e.privateKey
}

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