From f5d2eef55c89b7f1a5549704705c25fd7f0c0185 Mon Sep 17 00:00:00 2001
From: Aleksander Machniak <alec@alec.pl>
Date: Tue, 31 Dec 2013 07:58:29 -0500
Subject: [PATCH] More CS fixes, replace global $CONFIG usage with $RCMAIL->config->get()

---
 program/include/rcmail.php |  447 +++++++++++++++++++++++--------------------------------
 1 files changed, 185 insertions(+), 262 deletions(-)

diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index a149db1..e85d82c 100644
--- a/program/include/rcmail.php
+++ b/program/include/rcmail.php
@@ -51,6 +51,7 @@
    */
   public $action = '';
   public $comm_path = './';
+  public $filename = '';
 
   private $address_books = array();
   private $action_map = array();
@@ -65,12 +66,13 @@
   /**
    * This implements the 'singleton' design pattern
    *
+   * @param string Environment name to run (e.g. live, dev, test)
    * @return rcmail The one and only instance
    */
-  static function get_instance()
+  static function get_instance($env = '')
   {
     if (!self::$instance || !is_a(self::$instance, 'rcmail')) {
-      self::$instance = new rcmail();
+      self::$instance = new rcmail($env);
       self::$instance->startup();  // init AFTER object was linked with self::$instance
     }
 
@@ -86,6 +88,10 @@
   {
     $this->init(self::INIT_WITH_DB | self::INIT_WITH_PLUGINS);
 
+    // set filename if not index.php
+    if (($basename = basename($_SERVER['SCRIPT_FILENAME'])) && $basename != 'index.php')
+      $this->filename = $basename;
+
     // start session
     $this->session_init();
 
@@ -98,7 +104,10 @@
 
     // reset some session parameters when changing task
     if ($this->task != 'utils') {
-      if ($this->session && $_SESSION['task'] != $this->task)
+      // we reset list page when switching to another task
+      // but only to the main task interface - empty action (#1489076)
+      // this will prevent from unintentional page reset on cross-task requests
+      if ($this->session && $_SESSION['task'] != $this->task && empty($this->action))
         $this->session->remove('page');
       // set current task to session
       $_SESSION['task'] = $this->task;
@@ -123,7 +132,7 @@
    */
   public function set_task($task)
   {
-    $task = asciiwords($task);
+    $task = asciiwords($task, true);
 
     if ($this->user && $this->user->ID)
       $task = !$task ? 'mail' : $task;
@@ -159,7 +168,7 @@
     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 (in_array($lang, array('tr_TR', 'ku', 'az_AZ'))) {
+    if (version_compare(PHP_VERSION, '5.5.0', '<') && in_array($lang, array('tr_TR', 'ku', 'az_AZ'))) {
       setlocale(LC_CTYPE, 'en_US.utf8', 'en_US.UTF-8');
     }
   }
@@ -225,6 +234,11 @@
     }
 
     if (!$contacts) {
+      // there's no default, just return
+      if ($default) {
+        return null;
+      }
+
       self::raise_error(array(
         'code' => 700, 'type' => 'php',
         'file' => __FILE__, 'line' => __LINE__,
@@ -249,6 +263,23 @@
 
 
   /**
+   * Return identifier of the address book object
+   *
+   * @param rcube_addressbook Addressbook source object
+   *
+   * @return string Source identifier
+   */
+  public function get_address_book_id($object)
+  {
+    foreach ($this->address_books as $index => $book) {
+      if ($book === $object) {
+        return $index;
+      }
+    }
+  }
+
+
+  /**
    * Return address books list
    *
    * @param boolean True if the address book needs to be writeable
@@ -258,13 +289,13 @@
    */
   public function get_address_sources($writeable = false, $skip_hidden = false)
   {
-    $abook_type = strtolower($this->config->get('address_book_type'));
-    $ldap_config = $this->config->get('ldap_public');
+    $abook_type   = (string) $this->config->get('address_book_type');
+    $ldap_config  = (array) $this->config->get('ldap_public');
     $autocomplete = (array) $this->config->get('autocomplete_addressbooks');
-    $list = array();
+    $list         = array();
 
     // We are using the DB address book or a plugin address book
-    if ($abook_type != 'ldap' && $abook_type != '') {
+    if (!empty($abook_type) && strtolower($abook_type) != 'ldap') {
       if (!isset($this->address_books['0']))
         $this->address_books['0'] = new rcube_contacts($this->db, $this->get_user_id());
       $list['0'] = array(
@@ -277,8 +308,7 @@
       );
     }
 
-    if ($ldap_config) {
-      $ldap_config = (array) $ldap_config;
+    if (!empty($ldap_config)) {
       foreach ($ldap_config as $id => $prop) {
         // handle misconfiguration
         if (empty($prop) || !is_array($prop)) {
@@ -316,6 +346,44 @@
     return $list;
   }
 
+  /**
+   * Getter for compose responses.
+   * These are stored in local config and user preferences.
+   *
+   * @param boolean True to sort the list alphabetically
+   * @param boolean True if only this user's responses shall be listed
+   * @return array List of the current user's stored responses
+   */
+  public function get_compose_responses($sorted = false, $user_only = false)
+  {
+    $responses = array();
+
+    if (!$user_only) {
+      foreach ($this->config->get('compose_responses_static', array()) as $response) {
+        if (empty($response['key']))
+          $response['key'] = substr(md5($response['name']), 0, 16);
+        $response['static'] = true;
+        $response['class'] = 'readonly';
+        $k = $sorted ? '0000-' . strtolower($response['name']) : $response['key'];
+        $responses[$k] = $response;
+      }
+    }
+
+    foreach ($this->config->get('compose_responses', array()) as $response) {
+      if (empty($response['key']))
+        $response['key'] = substr(md5($response['name']), 0, 16);
+      $k = $sorted ? strtolower($response['name']) : $response['key'];
+      $responses[$k] = $response;
+    }
+
+    // sort list by name
+    if ($sorted) {
+      ksort($responses, SORT_LOCALE_STRING);
+    }
+
+    return array_values($responses);
+  }
+
 
   /**
    * Init output object for GUI and add common scripts.
@@ -344,6 +412,9 @@
     $this->output->set_env('action', $this->action);
     $this->output->set_env('comm_path', $this->comm_path);
     $this->output->set_charset(RCUBE_CHARSET);
+
+    if ($this->user && $this->user->ID)
+      $this->output->set_env('user_id', $this->user->get_hash());
 
     // add some basic labels to client
     $this->output->add_label('loading', 'servererror', 'requesttimedout', 'refreshing');
@@ -451,15 +522,22 @@
         $port = $config['default_port'];
     }
 
-    /* Modify username with domain if required
-       Inspired by Marco <P0L0_notspam_binware.org>
-    */
-    // Check if we need to add domain
-    if (!empty($config['username_domain']) && strpos($username, '@') === false) {
-      if (is_array($config['username_domain']) && isset($config['username_domain'][$host]))
-        $username .= '@'.rcube_utils::parse_host($config['username_domain'][$host], $host);
-      else if (is_string($config['username_domain']))
-        $username .= '@'.rcube_utils::parse_host($config['username_domain'], $host);
+    // Check if we need to add/force domain to username
+    if (!empty($config['username_domain'])) {
+      $domain = is_array($config['username_domain']) ? $config['username_domain'][$host] : $config['username_domain'];
+
+      if ($domain = rcube_utils::parse_host((string)$domain, $host)) {
+        $pos = strpos($username, '@');
+
+        // force configured domains
+        if (!empty($config['username_domain_forced']) && $pos !== false) {
+          $username = substr($username, 0, $pos) . '@' . $domain;
+        }
+        // just add domain if not specified
+        else if ($pos === false) {
+          $username .= '@' . $domain;
+        }
+      }
     }
 
     if (!isset($config['login_lc'])) {
@@ -594,7 +672,7 @@
       $post_host = rcube_utils::get_input_value('_host', rcube_utils::INPUT_POST);
       $post_user = rcube_utils::get_input_value('_user', rcube_utils::INPUT_POST);
 
-      list($user, $domain) = explode('@', $post_user);
+      list(, $domain) = explode('@', $post_user);
 
       // direct match in default_host array
       if ($default_host[$post_host] || in_array($post_host, array_values($default_host))) {
@@ -698,28 +776,6 @@
 
 
   /**
-   * Create unique authorization hash
-   *
-   * @param string Session ID
-   * @param int Timestamp
-   * @return string The generated auth hash
-   */
-  private function get_auth_hash($sess_id, $ts)
-  {
-    $auth_string = sprintf('rcmail*sess%sR%s*Chk:%s;%s',
-      $sess_id,
-      $ts,
-      $this->config->get('ip_check') ? $_SERVER['REMOTE_ADDR'] : '***.***.***.***',
-      $_SERVER['HTTP_USER_AGENT']);
-
-    if (function_exists('sha1'))
-      return sha1($auth_string);
-    else
-      return md5($auth_string);
-  }
-
-
-  /**
    * Build a valid URL to this instance of Roundcube
    *
    * @param mixed Either a string with the action or url parameters as key-value pairs
@@ -739,7 +795,7 @@
     $p['_task'] = $task;
     unset($p['task']);
 
-    $url = './';
+    $url = './' . $this->filename;
     $delm = '?';
     foreach (array_reverse($p) as $key => $val) {
       if ($val !== '' && $val !== null) {
@@ -762,11 +818,6 @@
     foreach ($this->address_books as $book) {
       if (is_object($book) && is_a($book, 'rcube_addressbook'))
         $book->close();
-    }
-
-    // before closing the database connection, write session data
-    if ($_SERVER['REMOTE_ADDR'] && is_object($this->session)) {
-      session_write_close();
     }
 
     // write performance stats to logs/console
@@ -929,185 +980,15 @@
 
 
     /**
-     * Send the given message using the configured method.
-     *
-     * @param object $message    Reference to Mail_MIME object
-     * @param string $from       Sender address string
-     * @param array  $mailto     Array of recipient address strings
-     * @param array  $error      SMTP error array (reference)
-     * @param string $body_file  Location of file with saved message body (reference),
-     *                           used when delay_file_io is enabled
-     * @param array  $options    SMTP options (e.g. DSN request)
-     *
-     * @return boolean Send status.
+     * Set environment variables for specified config options
      */
-    public function deliver_message(&$message, $from, $mailto, &$error, &$body_file = null, $options = null)
+    public function set_env_config($options)
     {
-        $plugin = $this->plugins->exec_hook('message_before_send', array(
-            'message' => $message,
-            'from'    => $from,
-            'mailto'  => $mailto,
-            'options' => $options,
-        ));
-
-        $from    = $plugin['from'];
-        $mailto  = $plugin['mailto'];
-        $options = $plugin['options'];
-        $message = $plugin['message'];
-        $headers = $message->headers();
-
-        // send thru SMTP server using custom SMTP library
-        if ($this->config->get('smtp_server')) {
-            // generate list of recipients
-            $a_recipients = array($mailto);
-
-            if (strlen($headers['Cc']))
-                $a_recipients[] = $headers['Cc'];
-            if (strlen($headers['Bcc']))
-                $a_recipients[] = $headers['Bcc'];
-
-            // clean Bcc from header for recipients
-            $send_headers = $headers;
-            unset($send_headers['Bcc']);
-            // here too, it because txtHeaders() below use $message->_headers not only $send_headers
-            unset($message->_headers['Bcc']);
-
-            $smtp_headers = $message->txtHeaders($send_headers, true);
-
-            if ($message->getParam('delay_file_io')) {
-                // use common temp dir
-                $temp_dir = $this->config->get('temp_dir');
-                $body_file = tempnam($temp_dir, 'rcmMsg');
-                if (PEAR::isError($mime_result = $message->saveMessageBody($body_file))) {
-                    self::raise_error(array('code' => 650, 'type' => 'php',
-                        'file' => __FILE__, 'line' => __LINE__,
-                        'message' => "Could not create message: ".$mime_result->getMessage()),
-                        TRUE, FALSE);
-                    return false;
-                }
-                $msg_body = fopen($body_file, 'r');
-            }
-            else {
-                $msg_body = $message->get();
-            }
-
-            // send message
-            if (!is_object($this->smtp)) {
-                $this->smtp_init(true);
-            }
-
-            $sent     = $this->smtp->send_mail($from, $a_recipients, $smtp_headers, $msg_body, $options);
-            $response = $this->smtp->get_response();
-            $error    = $this->smtp->get_error();
-
-            // log error
-            if (!$sent) {
-                self::raise_error(array('code' => 800, 'type' => 'smtp',
-                    'line' => __LINE__, 'file' => __FILE__,
-                    'message' => "SMTP error: ".join("\n", $response)), TRUE, FALSE);
+        foreach ((array) $options as $option) {
+            if ($this->config->get($option)) {
+                $this->output->set_env($option, true);
             }
         }
-        // send mail using PHP's mail() function
-        else {
-            // unset some headers because they will be added by the mail() function
-            $headers_enc = $message->headers($headers);
-            $headers_php = $message->_headers;
-            unset($headers_php['To'], $headers_php['Subject']);
-
-            // reset stored headers and overwrite
-            $message->_headers = array();
-            $header_str = $message->txtHeaders($headers_php);
-
-            // #1485779
-            if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') {
-                if (preg_match_all('/<([^@]+@[^>]+)>/', $headers_enc['To'], $m)) {
-                    $headers_enc['To'] = implode(', ', $m[1]);
-                }
-            }
-
-            $msg_body = $message->get();
-
-            if (PEAR::isError($msg_body)) {
-                self::raise_error(array('code' => 650, 'type' => 'php',
-                    'file' => __FILE__, 'line' => __LINE__,
-                    'message' => "Could not create message: ".$msg_body->getMessage()),
-                    TRUE, FALSE);
-            }
-            else {
-                $delim   = $this->config->header_delimiter();
-                $to      = $headers_enc['To'];
-                $subject = $headers_enc['Subject'];
-                $header_str = rtrim($header_str);
-
-                if ($delim != "\r\n") {
-                    $header_str = str_replace("\r\n", $delim, $header_str);
-                    $msg_body   = str_replace("\r\n", $delim, $msg_body);
-                    $to         = str_replace("\r\n", $delim, $to);
-                    $subject    = str_replace("\r\n", $delim, $subject);
-                }
-
-                if (ini_get('safe_mode'))
-                    $sent = mail($to, $subject, $msg_body, $header_str);
-                else
-                    $sent = mail($to, $subject, $msg_body, $header_str, "-f$from");
-            }
-        }
-
-        if ($sent) {
-            $this->plugins->exec_hook('message_sent', array('headers' => $headers, 'body' => $msg_body));
-
-            // remove MDN headers after sending
-            unset($headers['Return-Receipt-To'], $headers['Disposition-Notification-To']);
-
-            // get all recipients
-            if ($headers['Cc'])
-                $mailto .= $headers['Cc'];
-            if ($headers['Bcc'])
-                $mailto .= $headers['Bcc'];
-            if (preg_match_all('/<([^@]+@[^>]+)>/', $mailto, $m))
-                $mailto = implode(', ', array_unique($m[1]));
-
-            if ($this->config->get('smtp_log')) {
-                self::write_log('sendmail', sprintf("User %s [%s]; Message for %s; %s",
-                    $this->user->get_username(),
-                    $_SERVER['REMOTE_ADDR'],
-                    $mailto,
-                    !empty($response) ? join('; ', $response) : ''));
-            }
-        }
-
-        if (is_resource($msg_body)) {
-            fclose($msg_body);
-        }
-
-        $message->_headers = array();
-        $message->headers($headers);
-
-        return $sent;
-    }
-
-
-    /**
-     * Unique Message-ID generator.
-     *
-     * @return string Message-ID
-     */
-    public function gen_message_id()
-    {
-        $local_part  = md5(uniqid('rcmail'.mt_rand(),true));
-        $domain_part = $this->user->get_username('domain');
-
-        // Try to find FQDN, some spamfilters doesn't like 'localhost' (#1486924)
-        if (!preg_match('/\.[a-z]+$/i', $domain_part)) {
-            foreach (array($_SERVER['HTTP_HOST'], $_SERVER['SERVER_NAME']) as $host) {
-                $host = preg_replace('/:[0-9]+$/', '', $host);
-                if ($host && preg_match('/\.[a-z]+$/i', $host)) {
-                    $domain_part = $host;
-                }
-            }
-        }
-
-        return sprintf('<%s@%s>', $local_part, $domain_part);
     }
 
 
@@ -1134,22 +1015,32 @@
     /**
      * Write login data (name, ID, IP address) to the 'userlogins' log file.
      */
-    public function log_login()
+    public function log_login($user = null, $failed_login = false, $error_code = 0)
     {
         if (!$this->config->get('log_logins')) {
             return;
         }
 
-        $user_name = $this->get_user_name();
-        $user_id   = $this->get_user_id();
+        // failed login
+        if ($failed_login) {
+            $message = sprintf('Failed login for %s from %s in session %s (error: %d)',
+                $user, rcube_utils::remote_ip(), session_id(), $error_code);
+        }
+        // successful login
+        else {
+            $user_name = $this->get_user_name();
+            $user_id   = $this->get_user_id();
 
-        if (!$user_id) {
-            return;
+            if (!$user_id) {
+                return;
+            }
+
+            $message = sprintf('Successful login for %s (ID: %d) from %s in session %s',
+                    $user_name, $user_id, rcube_utils::remote_ip(), session_id());
         }
 
-        self::write_log('userlogins',
-            sprintf('Successful login for %s (ID: %d) from %s in session %s',
-                $user_name, $user_id, rcube_utils::remote_ip(), session_id()));
+        // log login
+        self::write_log('userlogins', $message);
     }
 
 
@@ -1165,7 +1056,7 @@
      */
     public function table_output($attrib, $table_data, $a_show_cols, $id_col)
     {
-        $table = new html_table(/*array('cols' => count($a_show_cols))*/);
+        $table = new html_table($attrib);
 
         // add table header
         if (!$attrib['noheader']) {
@@ -1404,13 +1295,22 @@
         }
         else {
             $js_mailboxlist = array();
-            $out = html::tag('ul', $attrib, $rcmail->render_folder_tree_html($a_mailboxes, $mbox_name, $js_mailboxlist, $attrib), html::$common_attrib);
+            $tree = $rcmail->render_folder_tree_html($a_mailboxes, $mbox_name, $js_mailboxlist, $attrib);
 
-            $rcmail->output->include_script('treelist.js');
-            $rcmail->output->add_gui_object('mailboxlist', $attrib['id']);
+            if ($type != 'js') {
+                $out = html::tag('ul', $attrib, $tree, html::$common_attrib);
+
+                $rcmail->output->include_script('treelist.js');
+                $rcmail->output->add_gui_object('mailboxlist', $attrib['id']);
+                $rcmail->output->set_env('unreadwrap', $attrib['unreadwrap']);
+                $rcmail->output->set_env('collapsed_folders', (string)$rcmail->config->get('collapsed_folders'));
+            }
+
             $rcmail->output->set_env('mailboxes', $js_mailboxlist);
-            $rcmail->output->set_env('unreadwrap', $attrib['unreadwrap']);
-            $rcmail->output->set_env('collapsed_folders', (string)$rcmail->config->get('collapsed_folders'));
+
+            // we can't use object keys in javascript because they are unordered
+            // we need sorted folders list for folder-selector widget
+            $rcmail->output->set_env('mailboxes_list', array_keys($js_mailboxlist));
         }
 
         return $out;
@@ -1528,9 +1428,10 @@
         $realnames = (bool)$attrib['realnames'];
         $msgcounts = $this->storage->get_cache('messagecount');
         $collapsed = $this->config->get('collapsed_folders');
+        $realnames = $this->config->get('show_real_foldernames');
 
         $out = '';
-        foreach ($arrFolders as $key => $folder) {
+        foreach ($arrFolders as $folder) {
             $title        = null;
             $folder_class = $this->folder_classname($folder['id']);
             $is_collapsed = strpos($collapsed, '&'.rawurlencode($folder['id']).'&') !== false;
@@ -1594,8 +1495,12 @@
             $jslist[$folder['id']] = array(
                 'id'      => $folder['id'],
                 'name'    => $foldername,
-                'virtual' => $folder['virtual']
+                'virtual' => $folder['virtual'],
             );
+
+            if (!empty($folder_class)) {
+                $jslist[$folder['id']]['class'] = $folder_class;
+            }
 
             if (!empty($folder['folders'])) {
                 $out .= html::tag('ul', array('style' => ($is_collapsed ? "display:none;" : null)),
@@ -1616,7 +1521,7 @@
     {
         $out = '';
 
-        foreach ($arrFolders as $key => $folder) {
+        foreach ($arrFolders as $folder) {
             // skip exceptions (and its subfolders)
             if (!empty($opts['exceptions']) && in_array($folder['id'], $opts['exceptions'])) {
                 continue;
@@ -1684,8 +1589,10 @@
      */
     public function localize_foldername($name, $with_path = true)
     {
+        $realnames = $this->config->get('show_real_foldernames');
+
         // try to localize path of the folder
-        if ($with_path) {
+        if ($with_path && !$realnames) {
             $storage   = $this->get_storage();
             $delimiter = $storage->get_hierarchy_delimiter();
             $path      = explode($delimiter, $name);
@@ -1702,12 +1609,11 @@
             }
         }
 
-        if ($folder_class = $this->folder_classname($name)) {
+        if (!$realnames && ($folder_class = $this->folder_classname($name))) {
             return $this->gettext($folder_class);
         }
-        else {
-            return rcube_charset::convert($name, 'UTF7-IMAP');
-        }
+
+        return rcube_charset::convert($name, 'UTF7-IMAP');
     }
 
 
@@ -1750,7 +1656,7 @@
 
         $rcmail->output->add_script('rcmail.set_quota('.rcube_output::json_serialize($quota).');', 'docready');
 
-        return html::span($attrib, '');
+        return html::span($attrib, '&nbsp;');
     }
 
 
@@ -1762,11 +1668,7 @@
         $quota_result = (array) $quota;
         $quota_result['type'] = isset($_SESSION['quota_display']) ? $_SESSION['quota_display'] : '';
 
-        if (!$quota['total'] && $this->config->get('quota_zero_as_unlimited')) {
-            $quota_result['title']   = $this->gettext('unlimited');
-            $quota_result['percent'] = 0;
-        }
-        else if ($quota['total']) {
+        if ($quota['total'] > 0) {
             if (!isset($quota['percent'])) {
                 $quota_result['percent'] = min(100, round(($quota['used']/max(1,$quota['total']))*100));
             }
@@ -1785,7 +1687,8 @@
             }
         }
         else {
-            $quota_result['title']   = $this->gettext('unknown');
+            $unlimited               = $this->config->get('quota_zero_as_unlimited');
+            $quota_result['title']   = $this->gettext($unlimited ? 'unlimited' : 'unknown');
             $quota_result['percent'] = 0;
         }
 
@@ -1798,32 +1701,51 @@
      *
      * @param string $fallback       Fallback message label
      * @param array  $fallback_args  Fallback message label arguments
+     * @param string $suffix         Message label suffix
      */
-    public function display_server_error($fallback = null, $fallback_args = null)
+    public function display_server_error($fallback = null, $fallback_args = null, $suffix = '')
     {
         $err_code = $this->storage->get_error_code();
         $res_code = $this->storage->get_response_code();
+        $args     = array();
 
         if ($res_code == rcube_storage::NOPERM) {
-            $this->output->show_message('errornoperm', 'error');
+            $error = 'errornoperm';
         }
         else if ($res_code == rcube_storage::READONLY) {
-            $this->output->show_message('errorreadonly', 'error');
+            $error = 'errorreadonly';
+        }
+        else if ($res_code == rcube_storage::OVERQUOTA) {
+            $error = 'errorroverquota';
         }
         else if ($err_code && ($err_str = $this->storage->get_error_str())) {
             // try to detect access rights problem and display appropriate message
             if (stripos($err_str, 'Permission denied') !== false) {
-                $this->output->show_message('errornoperm', 'error');
+                $error = 'errornoperm';
+            }
+            // try to detect full mailbox problem and display appropriate message
+            // there can be e.g. "Quota exceeded" or "quotum would exceed"
+            else if (stripos($err_str, 'quot') !== false && stripos($err_str, 'exceed') !== false) {
+                $error = 'erroroverquota';
             }
             else {
-                $this->output->show_message('servererrormsg', 'error', array('msg' => $err_str));
+                $error = 'servererrormsg';
+                $args  = array('msg' => $err_str);
             }
         }
         else if ($err_code < 0) {
-            $this->output->show_message('storageerror', 'error');
+            $error = 'storageerror';
         }
         else if ($fallback) {
-            $this->output->show_message($fallback, 'error', $fallback_args);
+            $error = $fallback;
+            $args  = $fallback_args;
+        }
+
+        if ($error) {
+            if ($suffix && $this->text_exists($error . $suffix)) {
+                $error .= $suffix;
+            }
+            $this->output->show_message($error, 'error', $args);
         }
     }
 
@@ -1945,7 +1867,8 @@
     public function upload_init()
     {
         // Enable upload progress bar
-        if (($seconds = $this->config->get('upload_progress')) && ini_get('apc.rfc1867')) {
+        $rfc1867 = filter_var(ini_get('apc.rfc1867'), FILTER_VALIDATE_BOOLEAN);
+        if ($rfc1867 && ($seconds = $this->config->get('upload_progress'))) {
             if ($field_name = ini_get('apc.rfc1867_name')) {
                 $this->output->set_env('upload_progress_name', $field_name);
                 $this->output->set_env('upload_progress_time', (int) $seconds);
@@ -1960,7 +1883,7 @@
         }
 
         $this->output->set_env('max_filesize', $max_filesize);
-        $max_filesize = self::show_bytes($max_filesize);
+        $max_filesize = $this->show_bytes($max_filesize);
         $this->output->set_env('filesizeerror', $this->gettext(array(
             'name' => 'filesizeerror', 'vars' => array('size' => $max_filesize))));
 

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