add notification when @user, @here, @all and @channel has colon ":" at the end (#8760)

app/notification.go

@@ -919,12 +919,13 @@ func GetExplicitMentions(message string, keywords map[string][]string) *Explicit
 
 			// remove trailing '.', as that is the end of a sentence
 			foundWithSuffix := false
-
-			for strings.HasSuffix(word, ".") {
-				word = strings.TrimSuffix(word, ".")
-				if checkForMention(word) {
-					foundWithSuffix = true
-					break
+			for _, suffixPunctuation := range []string{".", ":"} {
+				for strings.HasSuffix(word, suffixPunctuation) {
+					word = strings.TrimSuffix(word, suffixPunctuation)
+					if checkForMention(word) {
+						foundWithSuffix = true
+						break
+					}
 				}
 			}
 

app/notification_test.go

@@ -148,6 +148,16 @@ func TestGetExplicitMentions(t *testing.T) {
 				OtherPotentialMentions: []string{"user"},
 			},
 		},
+		"OnePersonWithColonAtEnd": {
+			Message:  "this is a message for @user:",
+			Keywords: map[string][]string{"this": {id1}},
+			Expected: &ExplicitMentions{
+				MentionedUserIds: map[string]bool{
+					id1: true,
+				},
+				OtherPotentialMentions: []string{"user"},
+			},
+		},
 		"MultiplePeopleWithOneWord": {
 			Message:  "this is a message for @user",
 			Keywords: map[string][]string{"@user": {id1, id2}},
@@ -188,6 +198,18 @@ func TestGetExplicitMentions(t *testing.T) {
 				ChannelMentioned: true,
 			},
 		},
+
+		"ChannelWithColonAtEnd": {
+			Message:  "this is a message for @channel:",
+			Keywords: map[string][]string{"@channel": {id1, id2}},
+			Expected: &ExplicitMentions{
+				MentionedUserIds: map[string]bool{
+					id1: true,
+					id2: true,
+				},
+				ChannelMentioned: true,
+			},
+		},
 		"CapitalizedChannel": {
 			Message:  "this is an message for @cHaNNeL",
 			Keywords: map[string][]string{"@channel": {id1, id2}},
@@ -210,6 +232,17 @@ func TestGetExplicitMentions(t *testing.T) {
 				AllMentioned: true,
 			},
 		},
+		"AllWithColonAtEnd": {
+			Message:  "this is a message for @all:",
+			Keywords: map[string][]string{"@all": {id1, id2}},
+			Expected: &ExplicitMentions{
+				MentionedUserIds: map[string]bool{
+					id1: true,
+					id2: true,
+				},
+				AllMentioned: true,
+			},
+		},
 		"CapitalizedAll": {
 			Message:  "this is an message for @ALL",
 			Keywords: map[string][]string{"@all": {id1, id2}},
@@ -230,6 +263,15 @@ func TestGetExplicitMentions(t *testing.T) {
 				},
 			},
 		},
+		"AtUserWithColonAtEnd": {
+			Message:  "this is a message for @user:",
+			Keywords: map[string][]string{"@user": {id1}},
+			Expected: &ExplicitMentions{
+				MentionedUserIds: map[string]bool{
+					id1: true,
+				},
+			},
+		},
 		"AtUserWithPeriodAtEndOfSentence": {
 			Message:  "this is a message for @user.period.",
 			Keywords: map[string][]string{"@user.period": {id1}},
@@ -248,6 +290,15 @@ func TestGetExplicitMentions(t *testing.T) {
 				},
 			},
 		},
+		"UserWithColonAtEnd": {
+			Message:  "this is a message for user:",
+			Keywords: map[string][]string{"user": {id1}},
+			Expected: &ExplicitMentions{
+				MentionedUserIds: map[string]bool{
+					id1: true,
+				},
+			},
+		},
 		"PotentialOutOfChannelUser": {
 			Message:  "this is an message for @potential and @user",
 			Keywords: map[string][]string{"@user": {id1}},
@@ -452,6 +503,7 @@ func TestGetExplicitMentionsAtHere(t *testing.T) {
 		"\\@here\\": true,
 		"|@here|":   true,
 		";@here;":   true,
+		"@here:":    true,
 		":@here:":   false, // This case shouldn't trigger a mention since it follows the format of reactions e.g. :word:
 		"'@here'":   true,
 		"\"@here\"": true,