Add option IgnoreMessages to ignore messages based on regexp. (all). Closes #70

3 files changed, 79 insertions, 0 deletions

diff --git a/bridge/config/config.go b/bridge/config/config.go
index 4b3c4250..f79c40d0 100644
--- a/bridge/config/config.go
+++ b/bridge/config/config.go
@@ -44,6 +44,7 @@ type Protocol struct {
 	EditDisable            bool   // mattermost, slack, discord, telegram, gitter
 	IconURL                string // mattermost, slack
 	IgnoreNicks            string // all protocols
+	IgnoreMessages         string // all protocols
 	Jid                    string // xmpp
 	Login                  string // mattermost, matrix
 	Muc                    string // xmpp
diff --git a/gateway/gateway.go b/gateway/gateway.go
index 2fa5a0bb..d2c6c220 100644
--- a/gateway/gateway.go
+++ b/gateway/gateway.go
@@ -5,6 +5,7 @@ import (
 	"github.com/42wim/matterbridge/bridge"
 	"github.com/42wim/matterbridge/bridge/config"
 	log "github.com/Sirupsen/logrus"
+	"regexp"
 	"strings"
 	"time"
 )
@@ -197,6 +198,9 @@ func (gw *Gateway) handleMessage(msg config.Message, dest *bridge.Bridge) {
 		log.Debug("empty channel")
 		return
 	}
+	// hide message from bridge
+	//if msg.Text HideMessagesPrefix
+
 	originchannel := msg.Channel
 	origmsg := msg
 	for _, channel := range gw.DestChannelFunc(&msg, *dest) {
@@ -230,6 +234,20 @@ func (gw *Gateway) ignoreMessage(msg *config.Message) bool {
 			return true
 		}
 	}
+	// TODO do not compile regexps everytime
+	for _, entry := range strings.Fields(gw.Bridges[msg.Account].Config.IgnoreMessages) {
+		if entry != "" {
+			re, err := regexp.Compile(entry)
+			if err != nil {
+				log.Errorf("incorrect regexp %s for %s", entry, msg.Account)
+				continue
+			}
+			if re.MatchString(msg.Text) {
+				log.Debugf("matching %s. ignoring %s from %s", entry, msg.Text, msg.Account)
+				return true
+			}
+		}
+	}
 	return false
 }
 
diff --git a/matterbridge.toml.sample b/matterbridge.toml.sample
index bcbab627..ecc921b1 100644
--- a/matterbridge.toml.sample
+++ b/matterbridge.toml.sample
@@ -63,6 +63,12 @@ MessageLength=400
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -115,6 +121,12 @@ SkipTLSVerify=true
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -159,6 +171,12 @@ Nick="yourlogin"
 #OPTIONAL
 IgnoreNicks="spammer1 spammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -261,6 +279,12 @@ EditSuffix=" (edited)"
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -294,6 +318,12 @@ Token="Yourtokenhere"
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -383,6 +413,12 @@ PrefixMessagesWithNick=false
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -427,6 +463,12 @@ EditSuffix=" (edited)"
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -477,6 +519,12 @@ EditSuffix=" (edited)"
 #OPTIONAL
 IgnoreNicks="spammer1 spammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -535,6 +583,12 @@ PrefixMessagesWithNick=false
 #OPTIONAL
 IgnoreNicks="ircspammer1 ircspammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
@@ -584,6 +638,12 @@ PrefixMessagesWithNick=false
 #OPTIONAL
 IgnoreNicks="spammer1 spammer2"
 
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
 #RemoteNickFormat defines how remote users appear on this bridge 
 #The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
 #The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge