1st, 2st, 3st, and 4st -- added the UID to the FETCH message

.gitmessage

@@ -0,0 +1,6 @@
+# TITLE
+# No more than 50 chars ##### 50 chars is here: #
+
+# Leave a blank line between title and body
+# BODY
+# Wrap at 72 chars ################################ 72 chars is here: #

configure.ac

@@ -1,7 +1,7 @@
 # $Id$
 
-AC_INIT(fdm, 2.2)
-RELEASE=2.2
+AC_INIT(fdm_i, 2.2i.0)
+RELEASE=2.2i.0
 AC_SUBST(RELEASE)
 
 AC_CONFIG_AUX_DIR(etc)

imap-common.c

@@ -1150,7 +1150,7 @@ imap_state_gmext_start(struct account *a, struct fetch_ctx *fctx)
 	struct mail		*m = fctx->mail;
 	struct fetch_imap_mail	*aux = m->auxdata;
 
-	if (imap_putln(a, "%u FETCH %u (X-GM-MSGID X-GM-THRID X-GM-LABELS)",
+	if (imap_putln(a, "%u UID FETCH %u (X-GM-MSGID X-GM-THRID X-GM-LABELS)",
 	    ++data->tag, aux->uid) != 0)
 		return (FETCH_ERROR);
 
@@ -1169,6 +1169,12 @@ imap_state_gmext_body(struct account *a, struct fetch_ctx *fctx)
 	u_int			 n;
 	uint64_t		 thrid, msgid;
 	size_t			 lblen;
+	// 0. new variables
+	struct fetch_imap_mail	*aux = m->auxdata; /* required to know what is the current UID */	
+	char			uid_search_buffer[32];
+	char			*uid_terminator;
+	char			original_char;
+	unsigned int 		guid;
 
 	for (;;) {
 		if (imap_getln(a, fctx, IMAP_RAW, &line) != 0)
@@ -1193,10 +1199,36 @@ imap_state_gmext_body(struct account *a, struct fetch_ctx *fctx)
 	if ((lb = strchr(lb, '(')) == NULL)
 		return (imap_invalid(a, line));
 	lb++; /* drop '(' */
+
+	// 1. Find the unique UID terminator: " UID n)" where n is aux->uid
+	if (snprintf(uid_search_buffer, sizeof(uid_search_buffer), " UID %u)", aux->uid) <= 0)
+	    return (imap_invalid(a, line));
+
+	uid_terminator = strstr(line, uid_search_buffer);
+	if (uid_terminator == NULL)
+	    return (imap_invalid(a, line));
+
+	// 2. Temporarily null-terminate the string before " UID n)"
+	original_char = *uid_terminator;
+	*uid_terminator = '\0'; 
+
 	lblen = strlen(lb);
-	if (lblen < 2 || lb[lblen - 1] != ')' || lb[lblen - 2] != ')')
-		return (imap_invalid(a, line));
-	lblen -= 2; /* drop '))' from the end */
+
+	// 3. Handle empty labels () and non-empty labels (check + strip trailing ')')
+	if (lblen == 1 && lb[0] == ')') {
+        	lblen = 0; // No labels found (a gmail label is like a virtual IMAP folder), set length to zero
+	} 
+	else {
+		// Non-empty labels: check for final ')' and remove it
+		if (lblen < 2 || lb[lblen - 1] != ')') {
+			*uid_terminator = original_char; // bring back original terminator
+			return (imap_invalid(a, line));
+		}
+		lblen -= 1; // drop ')' from the end
+	}
+
+	// 4. Restore the character temporarily overwritten
+	*uid_terminator = original_char; // maybe necessary for logging
 
 	add_tag(&m->tags, "gmail_msgid", "%llu", msgid);
 	add_tag(&m->tags, "gmail_thrid", "%llu", thrid);