- Fix roundcube hangs on empty inbox with bincimapd (#1486093)

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG RoundCube Webmail
 ===========================
 
+- Fix roundcube hangs on empty inbox with bincimapd (#1486093)
 - Fix wrong headers for IE on servers without $_SERVER['HTTPS'] (#1485926)
 - Force IE style headers for attachments in non-HTTPS session, 'use_https' option (#1485655)
 - Check 'post_max_size' for upload max filesize (#1486089) 

program/include/rcube_imap.php

@@ -2228,8 +2228,10 @@ class rcube_imap
     $msg_count = $this->_messagecount($mailbox);
     $cache_count = count($cache_index);
 
-    // console("Cache check: $msg_count !== ".count($cache_index));
-
+    // empty mailbox
+    if (!$msg_count)
+      return $cache_count ? -2 : 1;
+    
     if ($cache_count==$msg_count) {
       if ($this->skip_deleted) {
 	$h_index = iil_C_FetchHeaderIndex($this->conn, $mailbox, "1:*", 'UID', $this->skip_deleted);

program/lib/imap.inc

@@ -1510,11 +1510,11 @@ function iil_C_FetchHeaders(&$conn, $mailbox, $message_set, $uidfetch=false, $bo
 				preg_match('/ BODY\[HEADER.FIELDS \(.*?\)\]\s*(.*)$/s', $line, $m);
 				$reslines = explode("\n", trim($m[1], '"'));
 				// re-parse (see below)
-				foreach ($reslines as $line) {
-					if (ord($line[0])<=32) {
-						$lines[$ln] .= (empty($lines[$ln])?'':"\n").trim($line);
+				foreach ($reslines as $resln) {
+					if (ord($resln[0])<=32) {
+						$l[$ln] .= (empty($lines[$ln])?'':"\n").trim($resln);
 					} else {
-						$lines[++$ln] = trim($line);
+						$lines[++$ln] = trim($resln);
 					}
 				}
 			}
@@ -1668,7 +1668,7 @@ function iil_C_FetchHeaders(&$conn, $mailbox, $message_set, $uidfetch=false, $bo
 				}
 			}
 		}
-	} while (strcmp($a[0], $key) != 0);
+	} while (!iil_StartsWith($line, $key, true));
 
 	return $result;
 }