Add option to show emojis by converting their string/aliases to unicode

Author: hloeung

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/google/gops v0.3.27
 	github.com/grokify/html-strip-tags-go v0.0.1
 	github.com/hashicorp/golang-lru v0.6.0
+	github.com/kenshaw/emoji v0.3.3
 	github.com/matterbridge/logrus-prefixed-formatter v0.5.3-0.20200523233437-d971309a77ba
 	github.com/matterbridge/matterclient v0.0.0-20230909230346-007c5c33c54c
 	github.com/mattermost/mattermost-server/v6 v6.7.2

go.sum

@@ -840,6 +840,8 @@ github.com/kataras/neffos v0.0.14/go.mod h1:8lqADm8PnbeFfL7CLXh1WHw53dG27MC3pgi2
 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/go.mod h1:CzGEWj7cYgsdH8dAjBGEr58BoE7ScuLd+fwFZ44+/x8=
+github.com/kenshaw/emoji v0.3.3 h1:hnCZ1UMxgw81UBYqMgbO65s+PbzBT+DDAM7W3nGdpgI=
+github.com/kenshaw/emoji v0.3.3/go.mod h1:UHZHpun22ziHK9+1SuVYWq+rdFzQJLy5xtNC3k6Qbyw=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/errcheck v1.2.0/go.mod h1:/BMXB+zMLi60iA8Vv6Ksmxu/1UDYcXs4uQLJ+jE2L00=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=

matterircd.toml.example

@@ -126,6 +126,10 @@ ShortenRepliesTo = 0
 Unicode = false
 # Disable showing reactions
 HideReactions = false
+# Disable converting Mattermost markdown of text emphasis to IRC text emphasis
+#DisableIRCEmphasis
+# Disable converting emoji strings/aliases to their unicode equivalent
+#DisableEmoji = true
 
 #Only join direct/group messages when someone talks. This stops from cluttering your 
 #irc client with lots of windows.

mm-go-irckit/userbridge.go

@@ -20,6 +20,7 @@ import (
 	"github.com/42wim/matterircd/bridge/slack"
 	"github.com/alecthomas/chroma/v2/quick"
 	"github.com/davecgh/go-spew/spew"
+	"github.com/kenshaw/emoji"
 	"github.com/mattermost/mattermost-server/v6/model"
 	"github.com/muesli/reflow/wordwrap"
 	"github.com/sorcix/irc"
@@ -169,6 +170,10 @@ func (u *User) handleDirectMessageEvent(event *bridge.DirectMessageEvent) {
 			text = markdown2irc(text)
 		}
 
+		if !u.v.GetBool(u.br.Protocol()+".disableemoji") && !codeBlockBackTick && !codeBlockTilde { //nolint:goconst
+			text = emoji.ReplaceAliases(text)
+		}
+
 		if showContext {
 			text = prefix + text + suffix
 		}
@@ -325,6 +330,10 @@ func (u *User) handleChannelMessageEvent(event *bridge.ChannelMessageEvent) {
 			text = markdown2irc(text)
 		}
 
+		if !u.v.GetBool(u.br.Protocol()+".disableemoji") && !codeBlockBackTick && !codeBlockTilde {
+			text = emoji.ReplaceAliases(text)
+		}
+
 		if showContext {
 			text = prefix + text + suffix
 		}
@@ -458,6 +467,13 @@ func (u *User) handleReactionEvent(event interface{}) {
 		return
 	}
 
+	if !u.v.GetBool(u.br.Protocol() + ".disableemoji") {
+		reactionEmoji := emoji.FromAlias(reaction)
+		if reactionEmoji != nil {
+			reaction = fmt.Sprintf("%s", reactionEmoji)
+		}
+	}
+
 	if channelType == "D" {
 		e := &bridge.DirectMessageEvent{
 			Text:      "\x1d" + text + reaction + "\x1d" + message,