Chore: Allow @ character in message tags & set max length to 100 characters per tag

config/config.go

@@ -131,7 +131,7 @@ var (
 	CLITagsArg string
 
 	// ValidTagRegexp represents a valid tag
-	ValidTagRegexp = regexp.MustCompile(`^([a-zA-Z0-9\-\ \_\.]){1,}$`)
+	ValidTagRegexp = regexp.MustCompile(`^([a-zA-Z0-9\-\ \_\.@]){1,100}$`)
 
 	// TagsConfig is a yaml file to pre-load tags
 	TagsConfig string

internal/tools/tags.go

@@ -10,7 +10,7 @@ import (
 
 var (
 	// Invalid tag characters regex
-	tagsInvalidChars = regexp.MustCompile(`[^a-zA-Z0-9\-\ \_\.]`)
+	tagsInvalidChars = regexp.MustCompile(`[^a-zA-Z0-9\-\ \_\.@]`)
 
 	// Regex to catch multiple spaces
 	multiSpaceRe = regexp.MustCompile(`(\s+)`)
@@ -19,14 +19,21 @@ var (
 	TagsTitleCase bool
 )
 
-// CleanTag returns a clean tag, trimming whitespace and replacing invalid characters
+// CleanTag returns a clean tag, trimming whitespace and replacing invalid characters.
+// If the tag is longer than 100 characters, it is truncated.
 func CleanTag(s string) string {
-	return strings.TrimSpace(
+	t := strings.TrimSpace(
 		multiSpaceRe.ReplaceAllString(
 			tagsInvalidChars.ReplaceAllString(s, " "),
 			" ",
 		),
 	)
+
+	if len(t) > 100 {
+		return t[:100]
+	}
+
+	return t
 }
 
 // SetTagCasing returns the slice of tags, title-casing if set

server/ui-src/components/EditTags.vue

@@ -9,7 +9,7 @@ export default {
 		return {
 			mailbox,
 			editableTags: [],
-			validTagRe: /^([a-zA-Z0-9\- ._]){1,}$/,
+			validTagRe: /^([a-zA-Z0-9\- ._@]){1,100}$/,
 			tagToDelete: false,
 		};
 	},
@@ -28,7 +28,7 @@ export default {
 
 	methods: {
 		validTag(t) {
-			if (!t.after.match(/^([a-zA-Z0-9\- _.]){1,}$/)) {
+			if (!t.after.match(/^([a-zA-Z0-9\- ._@]){1,100}$/)) {
 				return false;
 			}
 

server/ui-src/components/message/MessageItem.vue

@@ -467,7 +467,7 @@ export default {
 									data-allow-clear="true"
 									data-placeholder="Add tags..."
 									data-badge-style="secondary"
-									data-regex="^([a-zA-Z0-9\-\ \_\.]){1,}$"
+									data-regex="^([a-zA-Z0-9\-\ \_\.@]){1,100}$"
 									data-separator="|,|"
 								>
 									<option value="">Type a tag...</option>