From acf633c73bc8df9a5036bc52d7568f4213ab73c7 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Fri, 06 May 2016 02:32:01 -0400
Subject: [PATCH] Fix XSS issue in href attribute on area tag (#5240, #5241)

---
 program/include/rcmail.php |  126 ++++++++++++++++++++++++-----------------
 1 files changed, 73 insertions(+), 53 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index bb42cab..1d4751e 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -145,8 +145,13 @@
         $this->task      = $task;
         $this->comm_path = $this->url(array('task' => $this->task));
 
+        if (!empty($_REQUEST['_framed'])) {
+            $this->comm_path .= '&_framed=1';
+        }
+
         if ($this->output) {
             $this->output->set_env('task', $this->task);
+            $this->output->set_env('comm_path', $this->comm_path);
         }
     }
 
@@ -170,9 +175,11 @@
         // set localization
         setlocale(LC_ALL, $lang . '.utf8', $lang . '.UTF-8', 'en_US.utf8', 'en_US.UTF-8');
 
-        // workaround for http://bugs.php.net/bug.php?id=18556
-        if (version_compare(PHP_VERSION, '5.5.0', '<') && in_array($lang, array('tr_TR', 'ku', 'az_AZ'))) {
-            setlocale(LC_CTYPE, 'en_US.utf8', 'en_US.UTF-8');
+        // Workaround for http://bugs.php.net/bug.php?id=18556
+        // Also strtoupper/strtolower and other methods are locale-aware
+        // for these locales it is problematic (#1490519)
+        if (in_array($lang, array('tr_TR', 'ku', 'az_AZ'))) {
+            setlocale(LC_CTYPE, 'en_US.utf8', 'en_US.UTF-8', 'C');
         }
     }
 
@@ -430,8 +437,11 @@
             $this->output->set_env('user_id', $this->user->get_hash());
         }
 
+        // set compose mode for all tasks (message compose step can be triggered from everywhere)
+        $this->output->set_env('compose_extwin', $this->config->get('compose_extwin',false));
+
         // add some basic labels to client
-        $this->output->add_label('loading', 'servererror', 'requesttimedout', 'refreshing');
+        $this->output->add_label('loading', 'servererror', 'connerror', 'requesttimedout', 'refreshing');
 
         return $this->output;
     }
@@ -492,32 +502,23 @@
             return false;
         }
 
-        $config = $this->config->all();
+        $default_host    = $this->config->get('default_host');
+        $default_port    = $this->config->get('default_port');
+        $username_domain = $this->config->get('username_domain');
+        $login_lc        = $this->config->get('login_lc', 2);
 
-        if (!$host) {
-            $host = $config['default_host'];
-        }
-
-        // Validate that selected host is in the list of configured hosts
-        if (is_array($config['default_host'])) {
-            $allowed = false;
-
-            foreach ($config['default_host'] as $key => $host_allowed) {
-                if (!is_numeric($key)) {
-                    $host_allowed = $key;
-                }
-                if ($host == $host_allowed) {
-                    $allowed = true;
-                    break;
-                }
+        // host is validated in rcmail::autoselect_host(), so here
+        // we'll only handle unset host (if possible)
+        if (!$host && !empty($default_host)) {
+            if (is_array($default_host)) {
+                list($key, $val) = each($default_host);
+                $host = is_numeric($key) ? $val : $key;
+            }
+            else {
+                $host = $default_host;
             }
 
-            if (!$allowed) {
-                $host = null;
-            }
-        }
-        else if (!empty($config['default_host']) && $host != rcube_utils::parse_host($config['default_host'])) {
-            $host = null;
+            $host = rcube_utils::parse_host($host);
         }
 
         if (!$host) {
@@ -533,23 +534,23 @@
 
             if (!empty($a_host['port']))
                 $port = $a_host['port'];
-            else if ($ssl && $ssl != 'tls' && (!$config['default_port'] || $config['default_port'] == 143))
+            else if ($ssl && $ssl != 'tls' && (!$default_port || $default_port == 143))
                 $port = 993;
         }
 
         if (!$port) {
-            $port = $config['default_port'];
+            $port = $default_port;
         }
 
         // Check if we need to add/force domain to username
-        if (!empty($config['username_domain'])) {
-            $domain = is_array($config['username_domain']) ? $config['username_domain'][$host] : $config['username_domain'];
+        if (!empty($username_domain)) {
+            $domain = is_array($username_domain) ? $username_domain[$host] : $username_domain;
 
             if ($domain = rcube_utils::parse_host((string)$domain, $host)) {
                 $pos = strpos($username, '@');
 
                 // force configured domains
-                if (!empty($config['username_domain_forced']) && $pos !== false) {
+                if ($pos !== false && $this->config->get('username_domain_forced')) {
                     $username = substr($username, 0, $pos) . '@' . $domain;
                 }
                 // just add domain if not specified
@@ -559,14 +560,10 @@
             }
         }
 
-        if (!isset($config['login_lc'])) {
-            $config['login_lc'] = 2; // default
-        }
-
         // Convert username to lowercase. If storage backend
         // is case-insensitive we need to store always the same username (#1487113)
-        if ($config['login_lc']) {
-            if ($config['login_lc'] == 2 || $config['login_lc'] === true) {
+        if ($login_lc) {
+            if ($login_lc == 2 || $login_lc === true) {
                 $username = mb_strtolower($username);
             }
             else if (strpos($username, '@')) {
@@ -604,7 +601,7 @@
             $user->touch();
         }
         // create new system user
-        else if ($config['auto_create_user']) {
+        else if ($this->config->get('auto_create_user')) {
             if ($created = rcube_user::create($username, $host)) {
                 $user = $created;
             }
@@ -651,7 +648,7 @@
             $this->fix_namespace_settings($user);
 
             // create default folders on login
-            if ($config['create_default_folders']) {
+            if ($this->config->get('create_default_folders')) {
                 $storage->create_default_folders();
             }
 
@@ -847,6 +844,9 @@
 
         // write performance stats to logs/console
         if ($this->config->get('devel_mode')) {
+            // make sure logged numbers use unified format
+            setlocale(LC_NUMERIC, 'en_US.utf8', 'en_US.UTF-8', 'en_US', 'C');
+
             if (function_exists('memory_get_usage'))
                 $mem = $this->show_bytes(memory_get_usage());
             if (function_exists('memory_get_peak_usage'))
@@ -1344,7 +1344,8 @@
      */
     public function folder_selector($p = array())
     {
-        $p += array('maxlength' => 100, 'realnames' => false, 'is_escaped' => true);
+        $realnames = $this->config->get('show_real_foldernames');
+        $p += array('maxlength' => 100, 'realnames' => $realnames, 'is_escaped' => true);
         $a_mailboxes = array();
         $storage = $this->get_storage();
 
@@ -1361,10 +1362,29 @@
 
         $delimiter = $storage->get_hierarchy_delimiter();
 
-        foreach ($list as $folder) {
-            if (empty($p['exceptions']) || !in_array($folder, $p['exceptions'])) {
-                $this->build_folder_tree($a_mailboxes, $folder, $delimiter);
+        if (!empty($p['exceptions'])) {
+            $list = array_diff($list, (array) $p['exceptions']);
+        }
+
+        if (!empty($p['additional'])) {
+            foreach ($p['additional'] as $add_folder) {
+                $add_items = explode($delimiter, $add_folder);
+                $folder    = '';
+                while (count($add_items)) {
+                    $folder .= array_shift($add_items);
+
+                    // @TODO: sorting
+                    if (!in_array($folder, $list)) {
+                        $list[] = $folder;
+                    }
+
+                    $folder .= $delimiter;
+                }
             }
+        }
+
+        foreach ($list as $folder) {
+            $this->build_folder_tree($a_mailboxes, $folder, $delimiter);
         }
 
         $select = new html_select($p);
@@ -1600,9 +1620,13 @@
      *
      * @return string Localized folder name in UTF-8 encoding
      */
-    public function localize_foldername($name, $with_path = true)
+    public function localize_foldername($name, $with_path = false)
     {
         $realnames = $this->config->get('show_real_foldernames');
+
+        if (!$realnames && ($folder_class = $this->folder_classname($name))) {
+            return $this->gettext($folder_class);
+        }
 
         // try to localize path of the folder
         if ($with_path && !$realnames) {
@@ -1612,7 +1636,7 @@
             $count     = count($path);
 
             if ($count > 1) {
-                for ($i = 0; $i < $count; $i++) {
+                for ($i = 1; $i < $count; $i++) {
                     $folder = implode($delimiter, array_slice($path, 0, -$i));
                     if ($folder_class = $this->folder_classname($folder)) {
                         $name = implode($delimiter, array_slice($path, $count - $i));
@@ -1620,10 +1644,6 @@
                     }
                 }
             }
-        }
-
-        if (!$realnames && ($folder_class = $this->folder_classname($name))) {
-            return $this->gettext($folder_class);
         }
 
         return rcube_charset::convert($name, 'UTF7-IMAP');
@@ -1788,17 +1808,17 @@
             $lang = 'en';
         }
 
-        $script = json_encode(array(
+        $script = array(
             'mode'       => $mode,
             'lang'       => $lang,
             'skin_path'  => $this->output->get_skin_path(),
             'spellcheck' => intval($this->config->get('enable_spellcheck')),
             'spelldict'  => intval($this->config->get('spellcheck_dictionary'))
-        ));
+        );
 
         $this->output->include_script('tiny_mce/tiny_mce.js');
         $this->output->include_script('editor.js');
-        $this->output->add_script("rcmail_editor_init($script)", 'docready');
+        $this->output->set_env('html_editor_init', $script);
     }
 
     /**

--
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