From bc8c2c57880523472b30f475d566a8133e2d2e20 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Sat, 21 May 2011 14:04:51 -0400
Subject: [PATCH] - Fix s/pattern/prefix/ in clear_cache()

---
 program/include/rcmail.php |  221 ++++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 files changed, 200 insertions(+), 21 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index 319e53c..7844b98 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -5,7 +5,7 @@
  | program/include/rcmail.php                                            |
  |                                                                       |
  | This file is part of the Roundcube Webmail client                     |
- | Copyright (C) 2008-2010, The Roundcube Dev Team                       |
+ | Copyright (C) 2008-2011, The Roundcube Dev Team                       |
  | Licensed under the GNU GPL                                            |
  |                                                                       |
  | PURPOSE:                                                              |
@@ -64,6 +64,13 @@
   public $db;
 
   /**
+   * Instace of Memcache class.
+   *
+   * @var rcube_mdb2
+   */
+  public $memcache;
+
+  /**
    * Instace of rcube_session class.
    *
    * @var rcube_session
@@ -115,6 +122,7 @@
 
   private $texts;
   private $address_books = array();
+  private $caches = array();
   private $action_map = array();
 
 
@@ -310,6 +318,56 @@
 
     return $this->db;
   }
+  
+  
+  /**
+   * Get global handle for memcache access
+   *
+   * @return object Memcache
+   */
+  public function get_memcache()
+  {
+    if (!isset($this->memcache)) {
+      // no memcache support in PHP
+      if (!class_exists('Memcache')) {
+        $this->memcache = false;
+        return false;
+      }
+      
+      $this->memcache = new Memcache;
+      $mc_available = 0;
+      foreach ($this->config->get('memcache_hosts', array()) as $host) {
+        list($host, $port) = explode(':', $host);
+        if (!$port) $port = 11211;
+        // add server and attempt to connect if not already done yet
+        if ($this->memcache->addServer($host, $port) && !$mc_available)
+          $mc_available += intval($this->memcache->connect($host, $port));
+      }
+      
+      if (!$mc_available)
+        $this->memcache = false;
+    }
+    
+    return $this->memcache;
+  }
+
+
+  /**
+   * Initialize and get cache object
+   *
+   * @param string $name Cache identifier
+   * @param string $type Cache type ('db', 'apc' or 'memcache')
+   *
+   * @return rcube_cache Cache object
+   */
+  public function get_cache($name, $type)
+  {
+    if (!isset($this->caches[$name])) {
+      $this->caches[$name] = new rcube_cache($type, $_SESSION['user_id'], $name);
+    }
+
+    return $this->caches[$name];
+  }
 
 
   /**
@@ -383,7 +441,7 @@
         'id' => '0',
         'name' => rcube_label('personaladrbook'),
         'groups' => $this->address_books['0']->groups,
-        'readonly' => false,
+        'readonly' => $this->address_books['0']->readonly,
         'autocomplete' => in_array('sql', $autocomplete)
       );
     }
@@ -411,7 +469,7 @@
       if ($writeable && $item['readonly'])
           unset($list[$idx]);
     }
-    
+
     return $list;
   }
 
@@ -492,14 +550,22 @@
     if (is_object($this->imap))
       return;
 
-    $this->imap = new rcube_imap($this->db);
+    $this->imap = new rcube_imap();
     $this->imap->debug_level = $this->config->get('debug_level');
     $this->imap->skip_deleted = $this->config->get('skip_deleted');
 
     // enable caching of imap data
-    if ($this->config->get('enable_caching')) {
-      $this->imap->set_caching(true);
+    $imap_cache = $this->config->get('imap_cache');
+    $messages_cache = $this->config->get('messages_cache');
+    // for backward compatybility
+    if ($imap_cache === null && $messages_cache === null && $this->config->get('enable_caching')) {
+        $imap_cache     = 'db';
+        $messages_cache = true;
     }
+    if ($imap_cache)
+        $this->imap->set_caching($imap_cache);
+    if ($messages_cache)
+        $this->imap->set_messages_caching(true);
 
     // set pagesize from config
     $this->imap->set_pagesize($this->config->get('pagesize', 50));
@@ -570,13 +636,12 @@
     if (session_id())
       return;
 
-    $lifetime = $this->config->get('session_lifetime', 0) * 60;
-
     // set session domain
     if ($domain = $this->config->get('session_domain')) {
       ini_set('session.cookie_domain', $domain);
     }
     // set session garbage collecting time according to session_lifetime
+    $lifetime = $this->config->get('session_lifetime', 0) * 60;
     if ($lifetime) {
       ini_set('session.gc_maxlifetime', $lifetime * 2);
     }
@@ -588,7 +653,7 @@
     ini_set('session.serialize_handler', 'php');
 
     // use database for storing session data
-    $this->session = new rcube_session($this->get_dbh(), $lifetime);
+    $this->session = new rcube_session($this->get_dbh(), $this->config);
 
     $this->session->register_gc_handler('rcmail_temp_gc');
     if ($this->config->get('enable_caching'))
@@ -736,9 +801,13 @@
 
     // user already registered -> update user's record
     if (is_object($user)) {
+      // fix some old settings according to namespace prefix
+      $this->fix_namespace_settings($user);
+
       // create default folders on first login
       if (!$user->data['last_login'] && $config['create_default_folders'])
         $this->imap->create_default_folders();
+      // update last login timestamp
       $user->touch();
     }
     // create new system user
@@ -783,7 +852,7 @@
         $_SESSION['timezone'] = floatval($_REQUEST['_timezone']);
 
       // force reloading complete list of subscribed mailboxes
-      $this->imap->clear_cache('mailboxes');
+      $this->imap->clear_cache('mailboxes', true);
 
       return true;
     }
@@ -874,6 +943,10 @@
 
     $nr = is_numeric($attrib['nr']) ? $attrib['nr'] : 1;
     $name = $attrib['name'] ? $attrib['name'] : '';
+    
+    // attrib contain text values: use them from now
+    if (($setval = $attrib[strtolower($_SESSION['language'])]) || ($setval = $attrib['en_us']))
+        $this->texts[$name] = $setval;
 
     // check for text with domain
     if ($domain && ($text_item = $this->texts[$domain.'.'.$name]))
@@ -1070,12 +1143,19 @@
         $book->close();
     }
 
+    foreach ($this->caches as $cache) {
+        if (is_object($cache))
+            $cache->close();
+    }
+
     if (is_object($this->imap))
       $this->imap->close();
 
     // before closing the database connection, write session data
-    if ($_SERVER['REMOTE_ADDR'])
+    if ($_SERVER['REMOTE_ADDR']) {
+      $this->session->cleanup();
       session_write_close();
+    }
 
     // write performance stats to logs/console
     if ($this->config->get('devel_mode')) {
@@ -1100,12 +1180,10 @@
    */
   public function get_request_token()
   {
-    $key = $this->task;
-
-    if (!$_SESSION['request_tokens'][$key])
-      $_SESSION['request_tokens'][$key] = md5(uniqid($key . mt_rand(), true));
-
-    return $_SESSION['request_tokens'][$key];
+    $sess_id = $_COOKIE[ini_get('session.name')];
+    if (!$sess_id) $sess_id = session_id();
+    $plugin = $this->plugins->exec_hook('request_token', array('value' => md5('RT' . $this->task . $this->config->get('des_key') . $sess_id)));
+    return $plugin['value'];
   }
 
 
@@ -1118,7 +1196,8 @@
   public function check_request($mode = RCUBE_INPUT_POST)
   {
     $token = get_input_value('_token', $mode);
-    return !empty($token) && $_SESSION['request_tokens'][$this->task] == $token;
+    $sess_id = $_COOKIE[ini_get('session.name')];
+    return !empty($sess_id) && $token == $this->get_request_token();
   }
 
 
@@ -1174,7 +1253,7 @@
       mcrypt_module_close($td);
     }
     else {
-      @include_once('lib/des.inc');
+      @include_once 'des.inc';
 
       if (function_exists('des')) {
         $des_iv_size = 8;
@@ -1226,7 +1305,7 @@
       mcrypt_module_close($td);
     }
     else {
-      @include_once('lib/des.inc');
+      @include_once 'des.inc';
 
       if (function_exists('des')) {
         $des_iv_size = 8;
@@ -1338,7 +1417,7 @@
     $rcmail = rcmail::get_instance();
     $convert  = $rcmail->config->get('im_convert_path', false);
     $identify = $rcmail->config->get('im_identify_path', false);
-    
+
     // imagemagick is required for this
     if (!$convert)
         return false;
@@ -1449,4 +1528,104 @@
     return strtr($this->action, '-', '_') . '.inc';
   }
 
+  /**
+   * Fixes some user preferences according to namespace handling change.
+   * Old Roundcube versions were using folder names with removed namespace prefix.
+   * Now we need to add the prefix on servers where personal namespace has prefix.
+   *
+   * @param rcube_user $user User object
+   */
+  private function fix_namespace_settings($user)
+  {
+    $prefix     = $this->imap->get_namespace('prefix');
+    $prefix_len = strlen($prefix);
+
+    if (!$prefix_len)
+      return;
+
+    $prefs = $user->get_prefs();
+    if (empty($prefs) || $prefs['namespace_fixed'])
+      return;
+
+    // Build namespace prefix regexp
+    $ns     = $this->imap->get_namespace();
+    $regexp = array();
+
+    foreach ($ns as $entry) {
+      if (!empty($entry)) {
+        foreach ($entry as $item) {
+          if (strlen($item[0])) {
+            $regexp[] = preg_quote($item[0], '/');
+          }
+        }
+      }
+    }
+    $regexp = '/^('. implode('|', $regexp).')/';
+
+    // Fix preferences
+    $opts = array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox', 'archive_mbox');
+    foreach ($opts as $opt) {
+      if ($value = $prefs[$opt]) {
+        if ($value != 'INBOX' && !preg_match($regexp, $value)) {
+          $prefs[$opt] = $prefix.$value;
+        }
+      }
+    }
+
+    if (!empty($prefs['default_imap_folders'])) {
+      foreach ($prefs['default_imap_folders'] as $idx => $name) {
+        if ($name != 'INBOX' && !preg_match($regexp, $name)) {
+          $prefs['default_imap_folders'][$idx] = $prefix.$name;
+        }
+      }
+    }
+
+    if (!empty($prefs['search_mods'])) {
+      $folders = array();
+      foreach ($prefs['search_mods'] as $idx => $value) {
+        if ($idx != 'INBOX' && $idx != '*' && !preg_match($regexp, $idx)) {
+          $idx = $prefix.$idx;
+        }
+        $folders[$idx] = $value;
+      }
+      $prefs['search_mods'] = $folders;
+    }
+
+    if (!empty($prefs['message_threading'])) {
+      $folders = array();
+      foreach ($prefs['message_threading'] as $idx => $value) {
+        if ($idx != 'INBOX' && !preg_match($regexp, $idx)) {
+          $idx = $prefix.$idx;
+        }
+        $folders[$prefix.$idx] = $value;
+      }
+      $prefs['message_threading'] = $folders;
+    }
+
+    if (!empty($prefs['collapsed_folders'])) {
+      $folders     = explode('&&', $prefs['collapsed_folders']);
+      $count       = count($folders);
+      $folders_str = '';
+
+      if ($count) {
+          $folders[0]        = substr($folders[0], 1);
+          $folders[$count-1] = substr($folders[$count-1], 0, -1);
+      }
+
+      foreach ($folders as $value) {
+        if ($value != 'INBOX' && !preg_match($regexp, $value)) {
+          $value = $prefix.$value;
+        }
+        $folders_str .= '&'.$value.'&';
+      }
+      $prefs['collapsed_folders'] = $folders_str;
+    }
+
+    $prefs['namespace_fixed'] = true;
+
+    // save updated preferences and reset imap settings (default folders)
+    $user->save_prefs($prefs);
+    $this->set_imap_prop();
+  }
+
 }

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