Password: Support host variables in password_db_dsn option (#5955)

CHANGELOG

@@ -30,6 +30,7 @@ CHANGELOG Roundcube Webmail
 - subscriptions_option: show \\Noselect folders greyed out (#5621)
 - Add option to not indent quoted text on top-posting reply (#5105)
 - Removed global $CONFIG variable
+- Password: Support host variables in password_db_dsn option (#5955)
 - Password: Automatic virtualmin domain setting, removed password_virtualmin_format option (#5759)
 - Support AUTHENTICATE LOGIN for IMAP connections (#5563)
 - Support LDAP GSSAPI authentication (#5703)

plugins/password/composer.json

@@ -3,7 +3,7 @@
     "type": "roundcube-plugin",
     "description": "Password Change for Roundcube. Plugin adds a possibility to change user password using many methods (drivers) via Settings/Password tab.",
     "license": "GPLv3+",
-    "version": "4.2",
+    "version": "4.3",
     "authors": [
         {
             "name": "Aleksander Machniak",

plugins/password/config.inc.php.dist

@@ -83,6 +83,12 @@ $config['password_disabled'] = false;
 // ------------------
 // PEAR database DSN for performing the query. By default
 // Roundcube DB settings are used.
+// Supported replacement variables:
+// %h - user's IMAP hostname
+// %n - hostname ($_SERVER['SERVER_NAME'])
+// %t - hostname without the first part
+// %d - domain (http hostname $_SERVER['HTTP_HOST'] without the first part)
+// %z - IMAP domain (IMAP hostname without the first part)
 $config['password_db_dsn'] = '';
 
 // The SQL query used to change the password.

plugins/password/drivers/sql.php

@@ -35,7 +35,7 @@ class rcube_sql_password
         }
 
         if ($dsn = $rcmail->config->get('password_db_dsn')) {
-            $db = rcube_db::factory($dsn, '', false);
+            $db = rcube_db::factory(self::parse_dsn($dsn), '', false);
             $db->set_debug((bool)$rcmail->config->get('sql_debug'));
         }
         else {
@@ -169,4 +169,23 @@ class rcube_sql_password
 
         return PASSWORD_ERROR;
     }
+
+    /**
+     * Parse DSN string and replace host variables
+     */
+    protected static function parse_dsn($dsn)
+    {
+        if (strpos($dsn, '%')) {
+            // parse DSN and replace variables in hostname
+            $parsed = rcube_db::parse_dsn($dsn);
+            $host   = rcube_utils::parse_host($parsed['hostspec']);
+
+            // build back the DSN string
+            if ($host != $parsed['hostspec']) {
+                $dsn = str_replace('@' . $parsed['hostspec'], '@' . $host, $dsn);
+            }
+        }
+
+        return $dsn;
+    }
 }