Fix base url resolution + better order for condition checks in rcube_mdb2 + updated changelog

CHANGELOG

@@ -1,6 +1,7 @@
 CHANGELOG Roundcube Webmail
 ===========================
 
+- Make alias setting in squirrelmail_usercopy plugin configurable (patch by pommi, #1487007)
 - Prevent from saving a non-existing skin path in user prefs (#1486936)
 - Improve handling of single-part messages with bogus BODYSTRUCTURE (#1486898)
 - Fix path to SQL files when using pgsql/mysqli/sqlsrv drivers (#1486902)

program/include/rcube_mdb2.php

@@ -123,16 +123,16 @@ class rcube_mdb2
     {
         // Already connected
         if ($this->db_connected) {
+            // connected to read-write db, current connection is ok
+            if ($this->db_mode == 'w')
+                return;
+
             // no replication, current connection is ok for read and write
             if (empty($this->db_dsnr) || $this->db_dsnw == $this->db_dsnr) {
                 $this->db_mode = 'w';
                 return;
             }
 
-            // connected to read-write db, current connection is ok
-            if ($this->db_mode == 'w')
-                return;
-
             // Same mode, current connection is ok
             if ($this->db_mode == $mode)
                 return;

program/include/rcube_shared.inc

@@ -227,7 +227,7 @@ function make_absolute_url($path, $base_url)
   // cut base_url to the last directory
   if (strrpos($base_url, '/')>7)
   {
-    $host_url = substr($base_url, 0, strpos($base_url, '/'));
+    $host_url = substr($base_url, 0, strpos($base_url, '/', 7));
     $base_url = substr($base_url, 0, strrpos($base_url, '/'));
   }