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-rw-r--r--bridge/discord/discord.go309
-rw-r--r--bridge/discord/handlers.go125
-rw-r--r--bridge/discord/helpers.go189
-rw-r--r--bridge/discord/helpers_test.go46
4 files changed, 412 insertions, 257 deletions
diff --git a/bridge/discord/discord.go b/bridge/discord/discord.go
index 3a11a504..16ce8c05 100644
--- a/bridge/discord/discord.go
+++ b/bridge/discord/discord.go
@@ -2,9 +2,7 @@ package bdiscord
import (
"bytes"
- "errors"
"fmt"
- "regexp"
"strings"
"sync"
@@ -17,18 +15,23 @@ import (
const MessageLength = 1950
type Bdiscord struct {
- c *discordgo.Session
- Channels []*discordgo.Channel
- Nick string
- UseChannelID bool
- userMemberMap map[string]*discordgo.Member
- nickMemberMap map[string]*discordgo.Member
- guildID string
- webhookID string
- webhookToken string
- channelInfoMap map[string]*config.ChannelInfo
- sync.RWMutex
*bridge.Config
+
+ c *discordgo.Session
+
+ nick string
+ useChannelID bool
+ guildID string
+ webhookID string
+ webhookToken string
+
+ channelsMutex sync.RWMutex
+ channels []*discordgo.Channel
+ channelInfoMap map[string]*config.ChannelInfo
+
+ membersMutex sync.RWMutex
+ userMemberMap map[string]*discordgo.Member
+ nickMemberMap map[string]*discordgo.Member
}
func New(cfg *bridge.Config) bridge.Bridger {
@@ -77,28 +80,40 @@ func (b *Bdiscord) Connect() error {
return err
}
serverName := strings.Replace(b.GetString("Server"), "ID:", "", -1)
- b.Nick = userinfo.Username
+ b.nick = userinfo.Username
+ b.channelsMutex.Lock()
for _, guild := range guilds {
if guild.Name == serverName || guild.ID == serverName {
- b.Channels, err = b.c.GuildChannels(guild.ID)
+ b.channels, err = b.c.GuildChannels(guild.ID)
b.guildID = guild.ID
if err != nil {
- return err
+ break
}
}
}
- for _, channel := range b.Channels {
+ b.channelsMutex.Unlock()
+ if err != nil {
+ return err
+ }
+ b.channelsMutex.RLock()
+ for _, channel := range b.channels {
b.Log.Debugf("found channel %#v", channel)
}
- // obtaining guild members and initializing nickname mapping
- b.Lock()
- defer b.Unlock()
+ b.channelsMutex.RUnlock()
+
+ // Obtaining guild members and initializing nickname mapping.
+ b.membersMutex.Lock()
+ defer b.membersMutex.Unlock()
members, err := b.c.GuildMembers(b.guildID, "", 1000)
if err != nil {
b.Log.Error("Error obtaining guild members", err)
return err
}
for _, member := range members {
+ if member == nil {
+ b.Log.Warnf("Skipping missing information for a user.")
+ continue
+ }
b.userMemberMap[member.User.ID] = member
b.nickMemberMap[member.User.Username] = member
if member.Nick != "" {
@@ -113,10 +128,13 @@ func (b *Bdiscord) Disconnect() error {
}
func (b *Bdiscord) JoinChannel(channel config.ChannelInfo) error {
+ b.channelsMutex.Lock()
+ defer b.channelsMutex.Unlock()
+
b.channelInfoMap[channel.ID] = &channel
idcheck := strings.Split(channel.Name, "ID:")
if len(idcheck) > 1 {
- b.UseChannelID = true
+ b.useChannelID = true
}
return nil
}
@@ -139,11 +157,13 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
wToken := b.webhookToken
// check if have a channel specific webhook
+ b.channelsMutex.RLock()
if ci, ok := b.channelInfoMap[msg.Channel+b.Account]; ok {
if ci.Options.WebhookURL != "" {
wID, wToken = b.splitURL(ci.Options.WebhookURL)
}
}
+ b.channelsMutex.RUnlock()
// Use webhook to send the message
if wID != "" {
@@ -196,7 +216,9 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
if msg.Extra != nil {
for _, rmsg := range helper.HandleExtra(&msg, b.General) {
rmsg.Text = helper.ClipMessage(rmsg.Text, MessageLength)
- b.c.ChannelMessageSend(channelID, rmsg.Username+rmsg.Text)
+ if _, err := b.c.ChannelMessageSend(channelID, rmsg.Username+rmsg.Text); err != nil {
+ b.Log.Errorf("Could not send message %#v: %v", rmsg, err)
+ }
}
// check if we have files to upload (from slack, telegram or mattermost)
if len(msg.Extra["file"]) > 0 {
@@ -221,246 +243,15 @@ func (b *Bdiscord) Send(msg config.Message) (string, error) {
return res.ID, err
}
-func (b *Bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelete) {
- rmsg := config.Message{Account: b.Account, ID: m.ID, Event: config.EventMsgDelete, Text: config.EventMsgDelete}
- rmsg.Channel = b.getChannelName(m.ChannelID)
- if b.UseChannelID {
- rmsg.Channel = "ID:" + m.ChannelID
- }
- b.Log.Debugf("<= Sending message from %s to gateway", b.Account)
- b.Log.Debugf("<= Message is %#v", rmsg)
- b.Remote <- rmsg
-}
-
-func (b *Bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) {
- if b.GetBool("EditDisable") {
- return
- }
- // only when message is actually edited
- if m.Message.EditedTimestamp != "" {
- b.Log.Debugf("Sending edit message")
- m.Content += b.GetString("EditSuffix")
- b.messageCreate(s, (*discordgo.MessageCreate)(m))
- }
-}
-
-func (b *Bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
- var err error
-
- // not relay our own messages
- if m.Author.Username == b.Nick {
- return
- }
- // if using webhooks, do not relay if it's ours
- if b.useWebhook() && m.Author.Bot && b.isWebhookID(m.Author.ID) {
- return
- }
-
- // add the url of the attachments to content
- if len(m.Attachments) > 0 {
- for _, attach := range m.Attachments {
- m.Content = m.Content + "\n" + attach.URL
- }
- }
-
- rmsg := config.Message{Account: b.Account, Avatar: "https://cdn.discordapp.com/avatars/" + m.Author.ID + "/" + m.Author.Avatar + ".jpg", UserID: m.Author.ID, ID: m.ID}
-
- if m.Content != "" {
- b.Log.Debugf("== Receiving event %#v", m.Message)
- m.Message.Content = b.stripCustomoji(m.Message.Content)
- m.Message.Content = b.replaceChannelMentions(m.Message.Content)
- rmsg.Text, err = m.ContentWithMoreMentionsReplaced(b.c)
- if err != nil {
- b.Log.Errorf("ContentWithMoreMentionsReplaced failed: %s", err)
- rmsg.Text = m.ContentWithMentionsReplaced()
- }
- }
-
- // set channel name
- rmsg.Channel = b.getChannelName(m.ChannelID)
- if b.UseChannelID {
- rmsg.Channel = "ID:" + m.ChannelID
- }
-
- // set username
- if !b.GetBool("UseUserName") {
- rmsg.Username = b.getNick(m.Author)
- } else {
- rmsg.Username = m.Author.Username
- }
-
- // if we have embedded content add it to text
- if b.GetBool("ShowEmbeds") && m.Message.Embeds != nil {
- for _, embed := range m.Message.Embeds {
- rmsg.Text = rmsg.Text + "embed: " + embed.Title + " - " + embed.Description + " - " + embed.URL + "\n"
- }
- }
-
- // no empty messages
- if rmsg.Text == "" {
- return
- }
-
- // do we have a /me action
- var ok bool
- rmsg.Text, ok = b.replaceAction(rmsg.Text)
- if ok {
- rmsg.Event = config.EventUserAction
- }
-
- b.Log.Debugf("<= Sending message from %s on %s to gateway", m.Author.Username, b.Account)
- b.Log.Debugf("<= Message is %#v", rmsg)
- b.Remote <- rmsg
-}
-
-func (b *Bdiscord) memberUpdate(s *discordgo.Session, m *discordgo.GuildMemberUpdate) {
- b.Lock()
- if _, ok := b.userMemberMap[m.Member.User.ID]; ok {
- b.Log.Debugf("%s: memberupdate: user %s (nick %s) changes nick to %s", b.Account, m.Member.User.Username, b.userMemberMap[m.Member.User.ID].Nick, m.Member.Nick)
- }
- b.userMemberMap[m.Member.User.ID] = m.Member
- b.nickMemberMap[m.Member.User.Username] = m.Member
- if m.Member.Nick != "" {
- b.nickMemberMap[m.Member.Nick] = m.Member
- }
- b.Unlock()
-}
-
-func (b *Bdiscord) getNick(user *discordgo.User) string {
- var err error
- b.Lock()
- defer b.Unlock()
- if _, ok := b.userMemberMap[user.ID]; ok {
- if b.userMemberMap[user.ID] != nil {
- if b.userMemberMap[user.ID].Nick != "" {
- // only return if nick is set
- return b.userMemberMap[user.ID].Nick
- }
- // otherwise return username
- return user.Username
- }
- }
- // if we didn't find nick, search for it
- member, err := b.c.GuildMember(b.guildID, user.ID)
- if err != nil {
- return user.Username
- }
- b.userMemberMap[user.ID] = member
- // only return if nick is set
- if b.userMemberMap[user.ID].Nick != "" {
- return b.userMemberMap[user.ID].Nick
- }
- return user.Username
-}
-
-func (b *Bdiscord) getGuildMemberByNick(nick string) (*discordgo.Member, error) {
- b.Lock()
- defer b.Unlock()
- if _, ok := b.nickMemberMap[nick]; ok {
- if b.nickMemberMap[nick] != nil {
- return b.nickMemberMap[nick], nil
- }
- }
-
- return nil, errors.New("Couldn't find guild member with nick " + nick) // This will most likely get ignored by the caller
-}
-
-func (b *Bdiscord) getChannelID(name string) string {
- idcheck := strings.Split(name, "ID:")
- if len(idcheck) > 1 {
- return idcheck[1]
- }
- for _, channel := range b.Channels {
- if channel.Name == name {
- return channel.ID
- }
- }
- return ""
-}
-
-func (b *Bdiscord) getChannelName(id string) string {
- for _, channel := range b.Channels {
- if channel.ID == id {
- return channel.Name
- }
- }
- return ""
-}
-
-func (b *Bdiscord) replaceChannelMentions(text string) string {
- var err error
- re := regexp.MustCompile("<#[0-9]+>")
- text = re.ReplaceAllStringFunc(text, func(m string) string {
- channel := b.getChannelName(m[2 : len(m)-1])
- // if at first don't succeed, try again
- if channel == "" {
- b.Channels, err = b.c.GuildChannels(b.guildID)
- if err != nil {
- return "#unknownchannel"
- }
- channel = b.getChannelName(m[2 : len(m)-1])
- return "#" + channel
- }
- return "#" + channel
- })
- return text
-}
-
-func (b *Bdiscord) replaceUserMentions(text string) string {
- re := regexp.MustCompile("@[^@]{1,32}")
- text = re.ReplaceAllStringFunc(text, func(m string) string {
- mention := strings.TrimSpace(m[1:])
- var member *discordgo.Member
- var err error
- for {
- b.Log.Debugf("Testing mention: '%s'", mention)
- member, err = b.getGuildMemberByNick(mention)
- if err != nil {
- lastSpace := strings.LastIndex(mention, " ")
- if lastSpace == -1 {
- break
- }
- mention = strings.TrimSpace(mention[0:lastSpace])
- } else {
- break
- }
- }
- if err != nil {
- return m
- }
- return strings.Replace(m, "@"+mention, member.User.Mention(), -1)
- })
- b.Log.Debugf("Message with mention replaced: %s", text)
- return text
-}
-
-func (b *Bdiscord) replaceAction(text string) (string, bool) {
- if strings.HasPrefix(text, "_") && strings.HasSuffix(text, "_") {
- return strings.Replace(text, "_", "", -1), true
- }
- return text, false
-}
-
-func (b *Bdiscord) stripCustomoji(text string) string {
- // <:doge:302803592035958784>
- re := regexp.MustCompile("<(:.*?:)[0-9]+>")
- return re.ReplaceAllString(text, `$1`)
-}
-
-// splitURL splits a webhookURL and returns the id and token
-func (b *Bdiscord) splitURL(url string) (string, string) {
- webhookURLSplit := strings.Split(url, "/")
- if len(webhookURLSplit) != 7 {
- b.Log.Fatalf("%s is no correct discord WebhookURL", url)
- }
- return webhookURLSplit[len(webhookURLSplit)-2], webhookURLSplit[len(webhookURLSplit)-1]
-}
-
// useWebhook returns true if we have a webhook defined somewhere
func (b *Bdiscord) useWebhook() bool {
if b.GetString("WebhookURL") != "" {
return true
}
+
+ b.channelsMutex.RLock()
+ defer b.channelsMutex.RUnlock()
+
for _, channel := range b.channelInfoMap {
if channel.Options.WebhookURL != "" {
return true
@@ -477,6 +268,10 @@ func (b *Bdiscord) isWebhookID(id string) bool {
return true
}
}
+
+ b.channelsMutex.RLock()
+ defer b.channelsMutex.RUnlock()
+
for _, channel := range b.channelInfoMap {
if channel.Options.WebhookURL != "" {
wID, _ := b.splitURL(channel.Options.WebhookURL)
diff --git a/bridge/discord/handlers.go b/bridge/discord/handlers.go
new file mode 100644
index 00000000..79c32015
--- /dev/null
+++ b/bridge/discord/handlers.go
@@ -0,0 +1,125 @@
+package bdiscord
+
+import (
+ "github.com/42wim/matterbridge/bridge/config"
+ "github.com/bwmarrin/discordgo"
+)
+
+func (b *Bdiscord) messageDelete(s *discordgo.Session, m *discordgo.MessageDelete) {
+ rmsg := config.Message{Account: b.Account, ID: m.ID, Event: config.EventMsgDelete, Text: config.EventMsgDelete}
+ rmsg.Channel = b.getChannelName(m.ChannelID)
+ if b.useChannelID {
+ rmsg.Channel = "ID:" + m.ChannelID
+ }
+ b.Log.Debugf("<= Sending message from %s to gateway", b.Account)
+ b.Log.Debugf("<= Message is %#v", rmsg)
+ b.Remote <- rmsg
+}
+
+func (b *Bdiscord) messageUpdate(s *discordgo.Session, m *discordgo.MessageUpdate) {
+ if b.GetBool("EditDisable") {
+ return
+ }
+ // only when message is actually edited
+ if m.Message.EditedTimestamp != "" {
+ b.Log.Debugf("Sending edit message")
+ m.Content += b.GetString("EditSuffix")
+ b.messageCreate(s, (*discordgo.MessageCreate)(m))
+ }
+}
+
+func (b *Bdiscord) messageCreate(s *discordgo.Session, m *discordgo.MessageCreate) {
+ var err error
+
+ // not relay our own messages
+ if m.Author.Username == b.nick {
+ return
+ }
+ // if using webhooks, do not relay if it's ours
+ if b.useWebhook() && m.Author.Bot && b.isWebhookID(m.Author.ID) {
+ return
+ }
+
+ // add the url of the attachments to content
+ if len(m.Attachments) > 0 {
+ for _, attach := range m.Attachments {
+ m.Content = m.Content + "\n" + attach.URL
+ }
+ }
+
+ rmsg := config.Message{Account: b.Account, Avatar: "https://cdn.discordapp.com/avatars/" + m.Author.ID + "/" + m.Author.Avatar + ".jpg", UserID: m.Author.ID, ID: m.ID}
+
+ if m.Content != "" {
+ b.Log.Debugf("== Receiving event %#v", m.Message)
+ m.Message.Content = b.stripCustomoji(m.Message.Content)
+ m.Message.Content = b.replaceChannelMentions(m.Message.Content)
+ rmsg.Text, err = m.ContentWithMoreMentionsReplaced(b.c)
+ if err != nil {
+ b.Log.Errorf("ContentWithMoreMentionsReplaced failed: %s", err)
+ rmsg.Text = m.ContentWithMentionsReplaced()
+ }
+ }
+
+ // set channel name
+ rmsg.Channel = b.getChannelName(m.ChannelID)
+ if b.useChannelID {
+ rmsg.Channel = "ID:" + m.ChannelID
+ }
+
+ // set username
+ if !b.GetBool("UseUserName") {
+ rmsg.Username = b.getNick(m.Author)
+ } else {
+ rmsg.Username = m.Author.Username
+ }
+
+ // if we have embedded content add it to text
+ if b.GetBool("ShowEmbeds") && m.Message.Embeds != nil {
+ for _, embed := range m.Message.Embeds {
+ rmsg.Text = rmsg.Text + "embed: " + embed.Title + " - " + embed.Description + " - " + embed.URL + "\n"
+ }
+ }
+
+ // no empty messages
+ if rmsg.Text == "" {
+ return
+ }
+
+ // do we have a /me action
+ var ok bool
+ rmsg.Text, ok = b.replaceAction(rmsg.Text)
+ if ok {
+ rmsg.Event = config.EventUserAction
+ }
+
+ b.Log.Debugf("<= Sending message from %s on %s to gateway", m.Author.Username, b.Account)
+ b.Log.Debugf("<= Message is %#v", rmsg)
+ b.Remote <- rmsg
+}
+
+func (b *Bdiscord) memberUpdate(s *discordgo.Session, m *discordgo.GuildMemberUpdate) {
+ if m.Member == nil {
+ b.Log.Warnf("Received member update with no member information: %#v", m)
+ }
+
+ b.membersMutex.Lock()
+ defer b.membersMutex.Unlock()
+
+ if currMember, ok := b.userMemberMap[m.Member.User.ID]; ok {
+ b.Log.Debugf(
+ "%s: memberupdate: user %s (nick %s) changes nick to %s",
+ b.Account,
+ m.Member.User.Username,
+ b.userMemberMap[m.Member.User.ID].Nick,
+ m.Member.Nick,
+ )
+ delete(b.nickMemberMap, currMember.User.Username)
+ delete(b.nickMemberMap, currMember.Nick)
+ delete(b.userMemberMap, m.Member.User.ID)
+ }
+ b.userMemberMap[m.Member.User.ID] = m.Member
+ b.nickMemberMap[m.Member.User.Username] = m.Member
+ if m.Member.Nick != "" {
+ b.nickMemberMap[m.Member.Nick] = m.Member
+ }
+}
diff --git a/bridge/discord/helpers.go b/bridge/discord/helpers.go
new file mode 100644
index 00000000..e693498c
--- /dev/null
+++ b/bridge/discord/helpers.go
@@ -0,0 +1,189 @@
+package bdiscord
+
+import (
+ "errors"
+ "regexp"
+ "strings"
+ "unicode"
+
+ "github.com/bwmarrin/discordgo"
+)
+
+func (b *Bdiscord) getNick(user *discordgo.User) string {
+ b.membersMutex.RLock()
+ defer b.membersMutex.RUnlock()
+
+ if member, ok := b.userMemberMap[user.ID]; ok {
+ if member.Nick != "" {
+ // Only return if nick is set.
+ return member.Nick
+ }
+ // Otherwise return username.
+ return user.Username
+ }
+
+ // If we didn't find nick, search for it.
+ member, err := b.c.GuildMember(b.guildID, user.ID)
+ if err != nil {
+ b.Log.Warnf("Failed to fetch information for member %#v: %#v", user, err)
+ return user.Username
+ } else if member == nil {
+ b.Log.Warnf("Got no information for member %#v", user)
+ return user.Username
+ }
+ b.userMemberMap[user.ID] = member
+ b.nickMemberMap[member.User.Username] = member
+ if member.Nick != "" {
+ b.nickMemberMap[member.Nick] = member
+ return member.Nick
+ }
+ return user.Username
+}
+
+func (b *Bdiscord) getGuildMemberByNick(nick string) (*discordgo.Member, error) {
+ b.membersMutex.RLock()
+ defer b.membersMutex.RUnlock()
+
+ if member, ok := b.nickMemberMap[nick]; ok {
+ return member, nil
+ }
+ return nil, errors.New("Couldn't find guild member with nick " + nick) // This will most likely get ignored by the caller
+}
+
+func (b *Bdiscord) getChannelID(name string) string {
+ b.channelsMutex.RLock()
+ defer b.channelsMutex.RUnlock()
+
+ idcheck := strings.Split(name, "ID:")
+ if len(idcheck) > 1 {
+ return idcheck[1]
+ }
+ for _, channel := range b.channels {
+ if channel.Name == name {
+ return channel.ID
+ }
+ }
+ return ""
+}
+
+func (b *Bdiscord) getChannelName(id string) string {
+ b.channelsMutex.RLock()
+ defer b.channelsMutex.RUnlock()
+
+ for _, channel := range b.channels {
+ if channel.ID == id {
+ return channel.Name
+ }
+ }
+ return ""
+}
+
+var (
+ // See https://discordapp.com/developers/docs/reference#message-formatting.
+ channelMentionRE = regexp.MustCompile("<#[0-9]+>")
+ emojiRE = regexp.MustCompile("<(:.*?:)[0-9]+>")
+ userMentionRE = regexp.MustCompile("@[^@\n]{1,32}")
+)
+
+func (b *Bdiscord) replaceChannelMentions(text string) string {
+ replaceChannelMentionFunc := func(match string) string {
+ var err error
+ channelID := match[2 : len(match)-1]
+
+ channelName := b.getChannelName(channelID)
+ // If we don't have the channel refresh our list.
+ if channelName == "" {
+ b.channels, err = b.c.GuildChannels(b.guildID)
+ if err != nil {
+ return "#unknownchannel"
+ }
+ channelName = b.getChannelName(channelID)
+ }
+ return "#" + channelName
+ }
+ return channelMentionRE.ReplaceAllStringFunc(text, replaceChannelMentionFunc)
+}
+
+func (b *Bdiscord) replaceUserMentions(text string) string {
+ replaceUserMentionFunc := func(match string) string {
+ var (
+ err error
+ member *discordgo.Member
+ username string
+ )
+
+ usernames := enumerateUsernames(match[1:])
+ for _, username = range usernames {
+ b.Log.Debugf("Testing mention: '%s'", username)
+ member, err = b.getGuildMemberByNick(username)
+ if err == nil {
+ break
+ }
+ }
+ if member == nil {
+ return match
+ }
+ return strings.Replace(match, "@"+username, member.User.Mention(), 1)
+ }
+ return userMentionRE.ReplaceAllStringFunc(text, replaceUserMentionFunc)
+}
+
+func (b *Bdiscord) stripCustomoji(text string) string {
+ return emojiRE.ReplaceAllString(text, `$1`)
+}
+
+func (b *Bdiscord) replaceAction(text string) (string, bool) {
+ if strings.HasPrefix(text, "_") && strings.HasSuffix(text, "_") {
+ return text[1:], true
+ }
+ return text, false
+}
+
+// splitURL splits a webhookURL and returns the ID and token.
+func (b *Bdiscord) splitURL(url string) (string, string) {
+ const (
+ expectedWebhookSplitCount = 7
+ webhookIdxID = 5
+ webhookIdxToken = 6
+ )
+ webhookURLSplit := strings.Split(url, "/")
+ if len(webhookURLSplit) != expectedWebhookSplitCount {
+ b.Log.Fatalf("%s is no correct discord WebhookURL", url)
+ }
+ return webhookURLSplit[webhookIdxID], webhookURLSplit[webhookIdxToken]
+}
+
+func enumerateUsernames(s string) []string {
+ onlySpace := true
+ for _, r := range s {
+ if !unicode.IsSpace(r) {
+ onlySpace = false
+ break
+ }
+ }
+ if onlySpace {
+ return nil
+ }
+
+ var username, endSpace string
+ var usernames []string
+ skippingSpace := true
+ for _, r := range s {
+ if unicode.IsSpace(r) {
+ if !skippingSpace {
+ usernames = append(usernames, username)
+ skippingSpace = true
+ }
+ endSpace += string(r)
+ username += string(r)
+ } else {
+ endSpace = ""
+ username += string(r)
+ skippingSpace = false
+ }
+ }
+ if endSpace == "" {
+ usernames = append(usernames, username)
+ }
+ return usernames
+}
diff --git a/bridge/discord/helpers_test.go b/bridge/discord/helpers_test.go
new file mode 100644
index 00000000..0f196d9a
--- /dev/null
+++ b/bridge/discord/helpers_test.go
@@ -0,0 +1,46 @@
+package bdiscord
+
+import (
+ "testing"
+
+ "github.com/stretchr/testify/assert"
+)
+
+func TestEnumerateUsernames(t *testing.T) {
+ testcases := map[string]struct {
+ match string
+ expectedUsernames []string
+ }{
+ "only space": {
+ match: " \t\n \t",
+ expectedUsernames: nil,
+ },
+ "single word": {
+ match: "veni",
+ expectedUsernames: []string{"veni"},
+ },
+ "single word with preceeding space": {
+ match: " vidi",
+ expectedUsernames: []string{" vidi"},
+ },
+ "single word with suffixed space": {
+ match: "vici ",
+ expectedUsernames: []string{"vici"},
+ },
+ "multi-word with varying whitespace": {
+ match: "just me and\tmy friends \t",
+ expectedUsernames: []string{
+ "just",
+ "just me",
+ "just me and",
+ "just me and\tmy",
+ "just me and\tmy friends",
+ },
+ },
+ }
+
+ for testname, testcase := range testcases {
+ foundUsernames := enumerateUsernames(testcase.match)
+ assert.Equalf(t, testcase.expectedUsernames, foundUsernames, "Should have found the expected usernames for testcase %s", testname)
+ }
+}