From b48d9bf5d412a6f56f3f9ba4bad141ddfe175727 Mon Sep 17 00:00:00 2001
From: alecpl <alec@alec.pl>
Date: Mon, 07 Sep 2009 08:51:21 -0400
Subject: [PATCH] - Use faster/secure mt_rand() (#1486094)
---
program/include/rcmail.php | 324 ++++++++++++++++++++++++++++++++++++++++-------------
1 files changed, 242 insertions(+), 82 deletions(-)
diff --git a/program/include/rcmail.php b/program/include/rcmail.php
index c10f835..b148e51 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, RoundCube Dev. - Switzerland |
+ | Copyright (C) 2008-2009, RoundCube Dev. - Switzerland |
| Licensed under the GNU GPL |
| |
| PURPOSE: |
@@ -28,15 +28,17 @@
*/
class rcmail
{
- static public $main_tasks = array('mail','settings','addressbook','login','logout');
+ static public $main_tasks = array('mail','settings','addressbook','login','logout','dummy');
static private $instance;
public $config;
public $user;
public $db;
+ public $smtp;
public $imap;
public $output;
+ public $plugins;
public $task = 'mail';
public $action = '';
public $comm_path = './';
@@ -47,7 +49,7 @@
/**
* This implements the 'singleton' design pattern
*
- * @return object qvert The one and only instance
+ * @return object rcmail The one and only instance
*/
static function get_instance()
{
@@ -88,9 +90,9 @@
$syslog_facility = $this->config->get('syslog_facility', LOG_USER);
openlog($syslog_id, LOG_ODELAY, $syslog_facility);
}
-
+
// set task and action properties
- $this->set_task(strip_quotes(get_input_value('_task', RCUBE_INPUT_GPC)));
+ $this->set_task(get_input_value('_task', RCUBE_INPUT_GPC));
$this->action = asciiwords(get_input_value('_action', RCUBE_INPUT_GPC));
// connect to database
@@ -123,7 +125,7 @@
// reset some session parameters when changing task
if ($_SESSION['task'] != $this->task)
- unset($_SESSION['page']);
+ rcube_sess_unset('page');
// set current task to session
$_SESSION['task'] = $this->task;
@@ -131,6 +133,9 @@
// create IMAP object
if ($this->task == 'mail')
$this->imap_init();
+
+ // create plugin API and load plugins
+ $this->plugins = rcube_plugin_api::get_instance();
}
@@ -141,14 +146,12 @@
*/
public function set_task($task)
{
- if (!in_array($task, self::$main_tasks))
- $task = 'mail';
-
- $this->task = $task;
- $this->comm_path = $this->url(array('task' => $task));
+ $task = asciiwords($task);
+ $this->task = $task ? $task : 'mail';
+ $this->comm_path = $this->url(array('task' => $this->task));
if ($this->output)
- $this->output->set_env('task', $task);
+ $this->output->set_env('task', $this->task);
}
@@ -170,7 +173,11 @@
$_SESSION['language'] = $this->user->language = $this->language_prop($this->config->get('language', $_SESSION['language']));
// set localization
- setlocale(LC_ALL, $_SESSION['language'] . '.utf8');
+ setlocale(LC_ALL, $_SESSION['language'] . '.utf8', 'en_US.utf8');
+
+ // workaround for http://bugs.php.net/bug.php?id=18556
+ if (in_array($_SESSION['language'], array('tr_TR', 'ku', 'az_AZ')))
+ setlocale(LC_CTYPE, 'en_US' . '.utf8');
}
@@ -223,7 +230,7 @@
/**
* Get the current database connection
*
- * @return object rcube_db Database connection object
+ * @return object rcube_mdb2 Database connection object
*/
public function get_dbh()
{
@@ -251,9 +258,18 @@
$contacts = null;
$ldap_config = (array)$this->config->get('ldap_public');
$abook_type = strtolower($this->config->get('address_book_type'));
+
+ $plugin = $this->plugins->exec_hook('get_address_book', array('id' => $id, 'writeable' => $writeable));
- if ($id && $ldap_config[$id]) {
+ // plugin returned instance of a rcube_addressbook
+ if ($plugin['instance'] instanceof rcube_addressbook) {
+ $contacts = $plugin['instance'];
+ }
+ else if ($id && $ldap_config[$id]) {
$contacts = new rcube_ldap($ldap_config[$id]);
+ }
+ else if ($id === '0') {
+ $contacts = new rcube_contacts($this->db, $this->user->ID);
}
else if ($abook_type == 'ldap') {
// Use the first writable LDAP address book.
@@ -286,8 +302,12 @@
if (!($this->output instanceof rcube_template))
$this->output = new rcube_template($this->task, $framed);
- foreach (array('flag_for_deletion','read_when_deleted') as $js_config_var) {
- $this->output->set_env($js_config_var, $this->config->get($js_config_var));
+ // set keep-alive/check-recent interval
+ if ($keep_alive = $this->config->get('keep_alive')) {
+ // be sure that it's less than session lifetime
+ if ($session_lifetime = $this->config->get('session_lifetime'))
+ $keep_alive = min($keep_alive, $session_lifetime * 60 - 30);
+ $this->output->set_env('keep_alive', max(60, $keep_alive));
}
if ($framed) {
@@ -298,10 +318,10 @@
$this->output->set_env('task', $this->task);
$this->output->set_env('action', $this->action);
$this->output->set_env('comm_path', $this->comm_path);
- $this->output->set_charset($this->config->get('charset', RCMAIL_CHARSET));
+ $this->output->set_charset(RCMAIL_CHARSET);
// add some basic label to client
- $this->output->add_label('loading');
+ $this->output->add_label('loading', 'servererror');
return $this->output;
}
@@ -318,6 +338,20 @@
$this->output = new rcube_json_output($this->task);
return $this->output;
+ }
+
+
+ /**
+ * Create SMTP object and connect to server
+ *
+ * @param boolean True if connection should be established
+ */
+ public function smtp_init($connect = false)
+ {
+ $this->smtp = new rcube_smtp();
+
+ if ($connect)
+ $this->smtp->connect();
}
@@ -340,6 +374,17 @@
// set pagesize from config
$this->imap->set_pagesize($this->config->get('pagesize', 50));
+
+ // Setting root and delimiter before iil_Connect can save time detecting them
+ // using NAMESPACE and LIST
+ $options = array(
+ 'imap' => $this->config->get('imap_auth_type', 'check'),
+ 'delimiter' => isset($_SESSION['imap_delimiter']) ? $_SESSION['imap_delimiter'] : $this->config->get('imap_delimiter'),
+ 'rootdir' => isset($_SESSION['imap_root']) ? $_SESSION['imap_root'] : $this->config->get('imap_root'),
+ 'debug_mode' => (bool) $this->config->get('imap_debug', 0),
+ );
+
+ $this->imap->set_options($options);
// set global object for backward compatibility
$GLOBALS['IMAP'] = $this->imap;
@@ -359,7 +404,7 @@
$conn = false;
if ($_SESSION['imap_host'] && !$this->imap->conn) {
- if (!($conn = $this->imap->connect($_SESSION['imap_host'], $_SESSION['username'], $this->decrypt_passwd($_SESSION['password']), $_SESSION['imap_port'], $_SESSION['imap_ssl'], rcmail::get_instance()->config->get('imap_auth_type', 'check')))) {
+ if (!($conn = $this->imap->connect($_SESSION['imap_host'], $_SESSION['username'], $this->decrypt($_SESSION['password']), $_SESSION['imap_port'], $_SESSION['imap_ssl']))) {
if ($this->output)
$this->output->show_message($this->imap->error_code == -1 ? 'imaperror' : 'sessionerror', 'error');
}
@@ -410,11 +455,13 @@
if ($a_host['host']) {
$host = $a_host['host'];
$imap_ssl = (isset($a_host['scheme']) && in_array($a_host['scheme'], array('ssl','imaps','tls'))) ? $a_host['scheme'] : null;
- $imap_port = isset($a_host['port']) ? $a_host['port'] : ($imap_ssl ? 993 : $config['default_port']);
+ if(!empty($a_host['port']))
+ $imap_port = $a_host['port'];
+ else if ($imap_ssl && $imap_ssl != 'tls')
+ $imap_port = 993;
}
- else
- $imap_port = $config['default_port'];
-
+
+ $imap_port = $imap_port ? $imap_port : $config['default_port'];
/* Modify username with domain if required
Inspired by Marco <P0L0_notspam_binware.org>
@@ -427,20 +474,21 @@
$username .= '@'.$config['username_domain'];
}
- // try to resolve email address from virtuser table
- if (!empty($config['virtuser_file']) && strpos($username, '@'))
- $username = rcube_user::email2user($username);
+ // try to resolve email address from virtuser table
+ if (strpos($username, '@'))
+ if ($virtuser = rcube_user::email2user($username))
+ $username = $virtuser;
// lowercase username if it's an e-mail address (#1484473)
if (strpos($username, '@'))
- $username = strtolower($username);
+ $username = mb_strtolower($username);
// user already registered -> overwrite username
if ($user = rcube_user::query($username, $host))
$username = $user->data['username'];
// exit if IMAP login failed
- if (!($imap_login = $this->imap->connect($host, $username, $pass, $imap_port, $imap_ssl, $config['imap_auth_type'])))
+ if (!($imap_login = $this->imap->connect($host, $username, $pass, $imap_port, $imap_ssl)))
return false;
// user already registered -> update user's record
@@ -455,12 +503,19 @@
// get existing mailboxes (but why?)
// $a_mailboxes = $this->imap->list_mailboxes();
}
+ else {
+ raise_error(array(
+ 'code' => 600,
+ 'type' => 'php',
+ 'message' => "Failed to create a user record. Maybe aborted by a plugin?"
+ ), true, false);
+ }
}
else {
raise_error(array(
'code' => 600,
'type' => 'php',
- 'file' => "config/main.inc.php",
+ 'file' => RCMAIL_CONFIG_DIR."/main.inc.php",
'message' => "Acces denied for new user $username. 'auto_create_user' is disabled"
), true, false);
}
@@ -475,7 +530,7 @@
$_SESSION['imap_host'] = $host;
$_SESSION['imap_port'] = $imap_port;
$_SESSION['imap_ssl'] = $imap_ssl;
- $_SESSION['password'] = $this->encrypt_passwd($pass);
+ $_SESSION['password'] = $this->encrypt($pass);
$_SESSION['login_time'] = mktime();
if ($_REQUEST['_timezone'] != '_default_')
@@ -503,10 +558,6 @@
{
$this->imap->set_charset($this->config->get('default_charset', RCMAIL_CHARSET));
- // set root dir from config
- if ($imap_root = $this->config->get('imap_root')) {
- $this->imap->set_rootdir($imap_root);
- }
if ($default_folders = $this->config->get('default_imap_folders')) {
$this->imap->set_default_mailboxes($default_folders);
}
@@ -516,6 +567,10 @@
if (isset($_SESSION['page'])) {
$this->imap->set_page($_SESSION['page']);
}
+
+ // cache IMAP root and delimiter in session for performance reasons
+ $_SESSION['imap_root'] = $this->imap->root_dir;
+ $_SESSION['imap_delimiter'] = $this->imap->delimiter;
}
@@ -569,7 +624,7 @@
* @param mixed Named parameters array or label name
* @return string Localized text
*/
- public function gettext($attrib)
+ public function gettext($attrib, $domain=null)
{
// load localization files if not done yet
if (empty($this->texts))
@@ -584,9 +639,12 @@
$command_name = !empty($attrib['command']) ? $attrib['command'] : NULL;
$alias = $attrib['name'] ? $attrib['name'] : ($command_name && $command_label_map[$command_name] ? $command_label_map[$command_name] : '');
-
+
+ // check for text with domain
+ if ($domain && ($text_item = $this->texts[$domain.'.'.$alias]))
+ ;
// text does not exist
- if (!($text_item = $this->texts[$alias])) {
+ else if (!($text_item = $this->texts[$alias])) {
/*
raise_error(array(
'code' => 500,
@@ -648,7 +706,7 @@
*
* @param string Language ID
*/
- public function load_language($lang = null)
+ public function load_language($lang = null, $add = array())
{
$lang = $this->language_prop(($lang ? $lang : $_SESSION['language']));
@@ -678,6 +736,10 @@
$_SESSION['language'] = $lang;
}
+
+ // append additional texts (from plugin)
+ if (is_array($add) && !empty($add))
+ $this->texts += $add;
}
@@ -728,7 +790,7 @@
if (!$valid || ($_SERVER['REQUEST_METHOD']!='POST' && $now - $_SESSION['auth_time'] > 300)) {
$_SESSION['last_auth'] = $_SESSION['auth_time'];
$_SESSION['auth_time'] = $now;
- setcookie('sessauth', $this->get_auth_hash(session_id(), $now));
+ rcmail::setcookie('sessauth', $this->get_auth_hash(session_id(), $now), 0);
}
}
else {
@@ -750,8 +812,11 @@
*/
public function kill_session()
{
+ $this->plugins->exec_hook('kill_session');
+
+ rcube_sess_unset();
$_SESSION = array('language' => $this->user->language, 'auth_time' => time(), 'temp' => true);
- setcookie('sessauth', '-del-', time() - 60);
+ rcmail::setcookie('sessauth', '-del-', time() - 60);
$this->user->reset();
}
@@ -792,12 +857,44 @@
$this->imap->write_cache();
}
+ if (is_object($this->smtp))
+ $this->smtp->disconnect();
+
if (is_object($this->contacts))
$this->contacts->close();
// before closing the database connection, write session data
if ($_SERVER['REMOTE_ADDR'])
session_write_close();
+ }
+
+
+ /**
+ * Generate a unique token to be used in a form request
+ *
+ * @return string The request token
+ */
+ 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];
+ }
+
+
+ /**
+ * Check if the current request contains a valid token
+ *
+ * @param int Request method
+ * @return boolean True if request token is valid false if not
+ */
+ public function check_request($mode = RCUBE_INPUT_POST)
+ {
+ $token = get_input_value('_token', $mode);
+ return !empty($token) && $_SESSION['request_tokens'][$this->task] == $token;
}
@@ -822,64 +919,108 @@
return md5($auth_string);
}
+
/**
- * Encrypt IMAP password using DES encryption
+ * Encrypt using 3DES
*
- * @param string Password to encrypt
- * @return string Encryprted string
+ * @param string $clear clear text input
+ * @param string $key encryption key to retrieve from the configuration, defaults to 'des_key'
+ * @param boolean $base64 whether or not to base64_encode() the result before returning
+ *
+ * @return string encrypted text
*/
- public function encrypt_passwd($pass)
+ public function encrypt($clear, $key = 'des_key', $base64 = true)
{
- if (function_exists('mcrypt_module_open') && ($td = mcrypt_module_open(MCRYPT_TripleDES, "", MCRYPT_MODE_ECB, ""))) {
+ if (!$clear)
+ return '';
+ /*-
+ * Add a single canary byte to the end of the clear text, which
+ * will help find out how much of padding will need to be removed
+ * upon decryption; see http://php.net/mcrypt_generic#68082
+ */
+ $clear = pack("a*H2", $clear, "80");
+
+ if (function_exists('mcrypt_module_open') &&
+ ($td = mcrypt_module_open(MCRYPT_TripleDES, "", MCRYPT_MODE_CBC, "")))
+ {
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
- mcrypt_generic_init($td, $this->config->get_des_key(), $iv);
- $cypher = mcrypt_generic($td, $pass);
+ mcrypt_generic_init($td, $this->config->get_crypto_key($key), $iv);
+ $cipher = $iv . mcrypt_generic($td, $clear);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
}
- else if (function_exists('des')) {
- $cypher = des($this->config->get_des_key(), $pass, 1, 0, NULL);
+ else if (function_exists('des'))
+ {
+ define('DES_IV_SIZE', 8);
+ $iv = '';
+ for ($i = 0; $i < constant('DES_IV_SIZE'); $i++)
+ $iv .= sprintf("%c", mt_rand(0, 255));
+ $cipher = $iv . des($this->config->get_crypto_key($key), $clear, 1, 1, $iv);
}
- else {
- $cypher = $pass;
-
+ else
+ {
raise_error(array(
'code' => 500,
'type' => 'php',
'file' => __FILE__,
- 'message' => "Could not convert encrypt password. Make sure Mcrypt is installed or lib/des.inc is available"
- ), true, false);
+ 'message' => "Could not perform encryption; make sure Mcrypt is installed or lib/des.inc is available"
+ ), true, true);
}
-
- return base64_encode($cypher);
+
+ return $base64 ? base64_encode($cipher) : $cipher;
}
-
/**
- * Decrypt IMAP password using DES encryption
+ * Decrypt 3DES-encrypted string
*
- * @param string Encrypted password
- * @return string Plain password
+ * @param string $cipher encrypted text
+ * @param string $key encryption key to retrieve from the configuration, defaults to 'des_key'
+ * @param boolean $base64 whether or not input is base64-encoded
+ *
+ * @return string decrypted text
*/
- public function decrypt_passwd($cypher)
+ public function decrypt($cipher, $key = 'des_key', $base64 = true)
{
- if (function_exists('mcrypt_module_open') && ($td = mcrypt_module_open(MCRYPT_TripleDES, "", MCRYPT_MODE_ECB, ""))) {
- $iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
- mcrypt_generic_init($td, $this->config->get_des_key(), $iv);
- $pass = mdecrypt_generic($td, base64_decode($cypher));
+ if (!$cipher)
+ return '';
+
+ $cipher = $base64 ? base64_decode($cipher) : $cipher;
+
+ if (function_exists('mcrypt_module_open') &&
+ ($td = mcrypt_module_open(MCRYPT_TripleDES, "", MCRYPT_MODE_CBC, "")))
+ {
+ $iv = substr($cipher, 0, mcrypt_enc_get_iv_size($td));
+ $cipher = substr($cipher, mcrypt_enc_get_iv_size($td));
+ mcrypt_generic_init($td, $this->config->get_crypto_key($key), $iv);
+ $clear = mdecrypt_generic($td, $cipher);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
}
- else if (function_exists('des')) {
- $pass = des($this->config->get_des_key(), base64_decode($cypher), 0, 0, NULL);
+ else if (function_exists('des'))
+ {
+ define('DES_IV_SIZE', 8);
+ $iv = substr($cipher, 0, constant('DES_IV_SIZE'));
+ $cipher = substr($cipher, constant('DES_IV_SIZE'));
+ $clear = des($this->config->get_crypto_key($key), $cipher, 0, 1, $iv);
}
- else {
- $pass = base64_decode($cypher);
+ else
+ {
+ raise_error(array(
+ 'code' => 500,
+ 'type' => 'php',
+ 'file' => __FILE__,
+ 'message' => "Could not perform decryption; make sure Mcrypt is installed or lib/des.inc is available"
+ ), true, true);
}
-
- return preg_replace('/\x00/', '', $pass);
+
+ /*-
+ * Trim PHP's padding and the canary byte; see note in
+ * rcmail::encrypt() and http://php.net/mcrypt_generic#68082
+ */
+ $clear = substr(rtrim($clear, "\0"), 0, -1);
+
+ return $clear;
}
-
/**
* Build a valid URL to this instance of RoundCube
@@ -892,18 +1033,37 @@
if (!is_array($p))
$p = array('_action' => @func_get_arg(0));
- if ($p['task'] && in_array($p['task'], rcmail::$main_tasks))
- $url = './?_task='.$p['task'];
- else
- $url = $this->comm_path;
-
+ $task = $p['_task'] ? $p['_task'] : ($p['task'] ? $p['task'] : $this->task);
+ $p['_task'] = $task;
unset($p['task']);
- foreach ($p as $par => $val)
- if (isset($val))
- $url .= '&'.urlencode($par).'='.urlencode($val);
-
+
+ $url = './';
+ $delm = '?';
+ foreach (array_reverse($p) as $key => $val)
+ {
+ if (!empty($val)) {
+ $par = $key[0] == '_' ? $key : '_'.$key;
+ $url .= $delm.urlencode($par).'='.urlencode($val);
+ $delm = '&';
+ }
+ }
return $url;
}
+
+
+ /**
+ * Helper method to set a cookie with the current path and host settings
+ *
+ * @param string Cookie name
+ * @param string Cookie value
+ * @param string Expiration time
+ */
+ public static function setcookie($name, $value, $exp = 0)
+ {
+ $cookie = session_get_cookie_params();
+ setcookie($name, $value, $exp, $cookie['path'], $cookie['domain'],
+ ($_SERVER['HTTPS'] && ($_SERVER['HTTPS'] != 'off')));
+ }
}
--
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