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authorthomascube <thomas@roundcube.net>2011-10-19 15:28:11 +0000
committerthomascube <thomas@roundcube.net>2011-10-19 15:28:11 +0000
commit5da48a95224e925f4b070f2581a121516df33829 (patch)
treefadc87888faae54cdb1efc6f7b73fbfce79e0fe7 /plugins/managesieve/lib
parentb03854de3a36a322bf98c733ed9b75d996694e38 (diff)
Copy plugins to release branch
Diffstat (limited to 'plugins/managesieve/lib')
-rw-r--r--plugins/managesieve/lib/Net/Sieve.php1274
-rw-r--r--plugins/managesieve/lib/rcube_sieve.php378
-rw-r--r--plugins/managesieve/lib/rcube_sieve_script.php940
3 files changed, 2592 insertions, 0 deletions
diff --git a/plugins/managesieve/lib/Net/Sieve.php b/plugins/managesieve/lib/Net/Sieve.php
new file mode 100644
index 000000000..a8e36d8d7
--- /dev/null
+++ b/plugins/managesieve/lib/Net/Sieve.php
@@ -0,0 +1,1274 @@
+<?php
+/**
+ * This file contains the Net_Sieve class.
+ *
+ * PHP version 4
+ *
+ * +-----------------------------------------------------------------------+
+ * | All rights reserved. |
+ * | |
+ * | Redistribution and use in source and binary forms, with or without |
+ * | modification, are permitted provided that the following conditions |
+ * | are met: |
+ * | |
+ * | o Redistributions of source code must retain the above copyright |
+ * | notice, this list of conditions and the following disclaimer. |
+ * | o Redistributions in binary form must reproduce the above copyright |
+ * | notice, this list of conditions and the following disclaimer in the |
+ * | documentation and/or other materials provided with the distribution.|
+ * | |
+ * | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
+ * | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
+ * | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
+ * | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
+ * | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
+ * | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
+ * | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
+ * | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
+ * | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
+ * | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
+ * | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
+ * +-----------------------------------------------------------------------+
+ *
+ * @category Networking
+ * @package Net_Sieve
+ * @author Richard Heyes <richard@phpguru.org>
+ * @author Damian Fernandez Sosa <damlists@cnba.uba.ar>
+ * @author Anish Mistry <amistry@am-productions.biz>
+ * @author Jan Schneider <jan@horde.org>
+ * @copyright 2002-2003 Richard Heyes
+ * @copyright 2006-2008 Anish Mistry
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD
+ * @version SVN: $Id: Sieve.php 300898 2010-07-01 09:49:02Z yunosh $
+ * @link http://pear.php.net/package/Net_Sieve
+ */
+
+require_once 'PEAR.php';
+require_once 'Net/Socket.php';
+
+/**
+ * TODO
+ *
+ * o supportsAuthMech()
+ */
+
+/**
+ * Disconnected state
+ * @const NET_SIEVE_STATE_DISCONNECTED
+ */
+define('NET_SIEVE_STATE_DISCONNECTED', 1, true);
+
+/**
+ * Authorisation state
+ * @const NET_SIEVE_STATE_AUTHORISATION
+ */
+define('NET_SIEVE_STATE_AUTHORISATION', 2, true);
+
+/**
+ * Transaction state
+ * @const NET_SIEVE_STATE_TRANSACTION
+ */
+define('NET_SIEVE_STATE_TRANSACTION', 3, true);
+
+
+/**
+ * A class for talking to the timsieved server which comes with Cyrus IMAP.
+ *
+ * @category Networking
+ * @package Net_Sieve
+ * @author Richard Heyes <richard@phpguru.org>
+ * @author Damian Fernandez Sosa <damlists@cnba.uba.ar>
+ * @author Anish Mistry <amistry@am-productions.biz>
+ * @author Jan Schneider <jan@horde.org>
+ * @copyright 2002-2003 Richard Heyes
+ * @copyright 2006-2008 Anish Mistry
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD
+ * @version Release: 1.3.0
+ * @link http://pear.php.net/package/Net_Sieve
+ * @link http://www.ietf.org/rfc/rfc3028.txt RFC 3028 (Sieve: A Mail
+ * Filtering Language)
+ * @link http://tools.ietf.org/html/draft-ietf-sieve-managesieve A
+ * Protocol for Remotely Managing Sieve Scripts
+ */
+class Net_Sieve
+{
+ /**
+ * The authentication methods this class supports.
+ *
+ * Can be overwritten if having problems with certain methods.
+ *
+ * @var array
+ */
+ var $supportedAuthMethods = array('DIGEST-MD5', 'CRAM-MD5', 'EXTERNAL',
+ 'PLAIN' , 'LOGIN');
+
+ /**
+ * SASL authentication methods that require Auth_SASL.
+ *
+ * @var array
+ */
+ var $supportedSASLAuthMethods = array('DIGEST-MD5', 'CRAM-MD5');
+
+ /**
+ * The socket handle.
+ *
+ * @var resource
+ */
+ var $_sock;
+
+ /**
+ * Parameters and connection information.
+ *
+ * @var array
+ */
+ var $_data;
+
+ /**
+ * Current state of the connection.
+ *
+ * One of the NET_SIEVE_STATE_* constants.
+ *
+ * @var integer
+ */
+ var $_state;
+
+ /**
+ * Constructor error.
+ *
+ * @var PEAR_Error
+ */
+ var $_error;
+
+ /**
+ * Whether to enable debugging.
+ *
+ * @var boolean
+ */
+ var $_debug = false;
+
+ /**
+ * Debug output handler.
+ *
+ * This has to be a valid callback.
+ *
+ * @var string|array
+ */
+ var $_debug_handler = null;
+
+ /**
+ * Whether to pick up an already established connection.
+ *
+ * @var boolean
+ */
+ var $_bypassAuth = false;
+
+ /**
+ * Whether to use TLS if available.
+ *
+ * @var boolean
+ */
+ var $_useTLS = true;
+
+ /**
+ * Additional options for stream_context_create().
+ *
+ * @var array
+ */
+ var $_options = null;
+
+ /**
+ * Maximum number of referral loops
+ *
+ * @var array
+ */
+ var $_maxReferralCount = 15;
+
+ /**
+ * Constructor.
+ *
+ * Sets up the object, connects to the server and logs in. Stores any
+ * generated error in $this->_error, which can be retrieved using the
+ * getError() method.
+ *
+ * @param string $user Login username.
+ * @param string $pass Login password.
+ * @param string $host Hostname of server.
+ * @param string $port Port of server.
+ * @param string $logintype Type of login to perform (see
+ * $supportedAuthMethods).
+ * @param string $euser Effective user. If authenticating as an
+ * administrator, login as this user.
+ * @param boolean $debug Whether to enable debugging (@see setDebug()).
+ * @param string $bypassAuth Skip the authentication phase. Useful if the
+ * socket is already open.
+ * @param boolean $useTLS Use TLS if available.
+ * @param array $options Additional options for
+ * stream_context_create().
+ * @param mixed $handler A callback handler for the debug output.
+ */
+ function Net_Sieve($user = null, $pass = null, $host = 'localhost',
+ $port = 2000, $logintype = '', $euser = '',
+ $debug = false, $bypassAuth = false, $useTLS = true,
+ $options = null, $handler = null)
+ {
+ $this->_state = NET_SIEVE_STATE_DISCONNECTED;
+ $this->_data['user'] = $user;
+ $this->_data['pass'] = $pass;
+ $this->_data['host'] = $host;
+ $this->_data['port'] = $port;
+ $this->_data['logintype'] = $logintype;
+ $this->_data['euser'] = $euser;
+ $this->_sock = new Net_Socket();
+ $this->_bypassAuth = $bypassAuth;
+ $this->_useTLS = $useTLS;
+ $this->_options = $options;
+ $this->setDebug($debug, $handler);
+
+ /* Try to include the Auth_SASL package. If the package is not
+ * available, we disable the authentication methods that depend upon
+ * it. */
+ if ((@include_once 'Auth/SASL.php') === false) {
+ $this->_debug('Auth_SASL not present');
+ foreach ($this->supportedSASLAuthMethods as $SASLMethod) {
+ $pos = array_search($SASLMethod, $this->supportedAuthMethods);
+ $this->_debug('Disabling method ' . $SASLMethod);
+ unset($this->supportedAuthMethods[$pos]);
+ }
+ }
+
+ if (strlen($user) && strlen($pass)) {
+ $this->_error = $this->_handleConnectAndLogin();
+ }
+ }
+
+ /**
+ * Returns any error that may have been generated in the constructor.
+ *
+ * @return boolean|PEAR_Error False if no error, PEAR_Error otherwise.
+ */
+ function getError()
+ {
+ return PEAR::isError($this->_error) ? $this->_error : false;
+ }
+
+ /**
+ * Sets the debug state and handler function.
+ *
+ * @param boolean $debug Whether to enable debugging.
+ * @param string $handler A custom debug handler. Must be a valid callback.
+ *
+ * @return void
+ */
+ function setDebug($debug = true, $handler = null)
+ {
+ $this->_debug = $debug;
+ $this->_debug_handler = $handler;
+ }
+
+ /**
+ * Connects to the server and logs in.
+ *
+ * @return boolean True on success, PEAR_Error on failure.
+ */
+ function _handleConnectAndLogin()
+ {
+ if (PEAR::isError($res = $this->connect($this->_data['host'], $this->_data['port'], $this->_options, $this->_useTLS))) {
+ return $res;
+ }
+ if ($this->_bypassAuth === false) {
+ if (PEAR::isError($res = $this->login($this->_data['user'], $this->_data['pass'], $this->_data['logintype'], $this->_data['euser'], $this->_bypassAuth))) {
+ return $res;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Handles connecting to the server and checks the response validity.
+ *
+ * @param string $host Hostname of server.
+ * @param string $port Port of server.
+ * @param array $options List of options to pass to
+ * stream_context_create().
+ * @param boolean $useTLS Use TLS if available.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function connect($host, $port, $options = null, $useTLS = true)
+ {
+ $this->_data['host'] = $host;
+ $this->_data['port'] = $port;
+ $this->_useTLS = $useTLS;
+ if (!empty($options) && is_array($options)) {
+ $this->_options = array_merge($this->_options, $options);
+ }
+
+ if (NET_SIEVE_STATE_DISCONNECTED != $this->_state) {
+ return PEAR::raiseError('Not currently in DISCONNECTED state', 1);
+ }
+
+ if (PEAR::isError($res = $this->_sock->connect($host, $port, false, 5, $options))) {
+ return $res;
+ }
+
+ if ($this->_bypassAuth) {
+ $this->_state = NET_SIEVE_STATE_TRANSACTION;
+ } else {
+ $this->_state = NET_SIEVE_STATE_AUTHORISATION;
+ if (PEAR::isError($res = $this->_doCmd())) {
+ return $res;
+ }
+ }
+
+ // Explicitly ask for the capabilities in case the connection is
+ // picked up from an existing connection.
+ if (PEAR::isError($res = $this->_cmdCapability())) {
+ return PEAR::raiseError(
+ 'Failed to connect, server said: ' . $res->getMessage(), 2
+ );
+ }
+
+ // Check if we can enable TLS via STARTTLS.
+ if ($useTLS && !empty($this->_capability['starttls'])
+ && function_exists('stream_socket_enable_crypto')
+ ) {
+ if (PEAR::isError($res = $this->_startTLS())) {
+ return $res;
+ }
+ }
+
+ return true;
+ }
+
+ /**
+ * Disconnect from the Sieve server.
+ *
+ * @param boolean $sendLogoutCMD Whether to send LOGOUT command before
+ * disconnecting.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function disconnect($sendLogoutCMD = true)
+ {
+ return $this->_cmdLogout($sendLogoutCMD);
+ }
+
+ /**
+ * Logs into server.
+ *
+ * @param string $user Login username.
+ * @param string $pass Login password.
+ * @param string $logintype Type of login method to use.
+ * @param string $euser Effective UID (perform on behalf of $euser).
+ * @param boolean $bypassAuth Do not perform authentication.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function login($user, $pass, $logintype = null, $euser = '', $bypassAuth = false)
+ {
+ $this->_data['user'] = $user;
+ $this->_data['pass'] = $pass;
+ $this->_data['logintype'] = $logintype;
+ $this->_data['euser'] = $euser;
+ $this->_bypassAuth = $bypassAuth;
+
+ if (NET_SIEVE_STATE_AUTHORISATION != $this->_state) {
+ return PEAR::raiseError('Not currently in AUTHORISATION state', 1);
+ }
+
+ if (!$bypassAuth ) {
+ if (PEAR::isError($res = $this->_cmdAuthenticate($user, $pass, $logintype, $euser))) {
+ return $res;
+ }
+ }
+ $this->_state = NET_SIEVE_STATE_TRANSACTION;
+
+ return true;
+ }
+
+ /**
+ * Returns an indexed array of scripts currently on the server.
+ *
+ * @return array Indexed array of scriptnames.
+ */
+ function listScripts()
+ {
+ if (is_array($scripts = $this->_cmdListScripts())) {
+ $this->_active = $scripts[1];
+ return $scripts[0];
+ } else {
+ return $scripts;
+ }
+ }
+
+ /**
+ * Returns the active script.
+ *
+ * @return string The active scriptname.
+ */
+ function getActive()
+ {
+ if (!empty($this->_active)) {
+ return $this->_active;
+ }
+ if (is_array($scripts = $this->_cmdListScripts())) {
+ $this->_active = $scripts[1];
+ return $scripts[1];
+ }
+ }
+
+ /**
+ * Sets the active script.
+ *
+ * @param string $scriptname The name of the script to be set as active.
+ *
+ * @return boolean True on success, PEAR_Error on failure.
+ */
+ function setActive($scriptname)
+ {
+ return $this->_cmdSetActive($scriptname);
+ }
+
+ /**
+ * Retrieves a script.
+ *
+ * @param string $scriptname The name of the script to be retrieved.
+ *
+ * @return string The script on success, PEAR_Error on failure.
+ */
+ function getScript($scriptname)
+ {
+ return $this->_cmdGetScript($scriptname);
+ }
+
+ /**
+ * Adds a script to the server.
+ *
+ * @param string $scriptname Name of the script.
+ * @param string $script The script content.
+ * @param boolean $makeactive Whether to make this the active script.
+ *
+ * @return boolean True on success, PEAR_Error on failure.
+ */
+ function installScript($scriptname, $script, $makeactive = false)
+ {
+ if (PEAR::isError($res = $this->_cmdPutScript($scriptname, $script))) {
+ return $res;
+ }
+ if ($makeactive) {
+ return $this->_cmdSetActive($scriptname);
+ }
+ return true;
+ }
+
+ /**
+ * Removes a script from the server.
+ *
+ * @param string $scriptname Name of the script.
+ *
+ * @return boolean True on success, PEAR_Error on failure.
+ */
+ function removeScript($scriptname)
+ {
+ return $this->_cmdDeleteScript($scriptname);
+ }
+
+ /**
+ * Checks if the server has space to store the script by the server.
+ *
+ * @param string $scriptname The name of the script to mark as active.
+ * @param integer $size The size of the script.
+ *
+ * @return boolean|PEAR_Error True if there is space, PEAR_Error otherwise.
+ *
+ * @todo Rename to hasSpace()
+ */
+ function haveSpace($scriptname, $size)
+ {
+ if (NET_SIEVE_STATE_TRANSACTION != $this->_state) {
+ return PEAR::raiseError('Not currently in TRANSACTION state', 1);
+ }
+
+ $command = sprintf('HAVESPACE %s %d', $this->_escape($scriptname), $size);
+ if (PEAR::isError($res = $this->_doCmd($command))) {
+ return $res;
+ }
+ return true;
+ }
+
+ /**
+ * Returns the list of extensions the server supports.
+ *
+ * @return array List of extensions or PEAR_Error on failure.
+ */
+ function getExtensions()
+ {
+ if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) {
+ return PEAR::raiseError('Not currently connected', 7);
+ }
+ return $this->_capability['extensions'];
+ }
+
+ /**
+ * Returns whether the server supports an extension.
+ *
+ * @param string $extension The extension to check.
+ *
+ * @return boolean Whether the extension is supported or PEAR_Error on
+ * failure.
+ */
+ function hasExtension($extension)
+ {
+ if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) {
+ return PEAR::raiseError('Not currently connected', 7);
+ }
+
+ $extension = trim($this->_toUpper($extension));
+ if (is_array($this->_capability['extensions'])) {
+ foreach ($this->_capability['extensions'] as $ext) {
+ if ($ext == $extension) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Returns the list of authentication methods the server supports.
+ *
+ * @return array List of authentication methods or PEAR_Error on failure.
+ */
+ function getAuthMechs()
+ {
+ if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) {
+ return PEAR::raiseError('Not currently connected', 7);
+ }
+ return $this->_capability['sasl'];
+ }
+
+ /**
+ * Returns whether the server supports an authentication method.
+ *
+ * @param string $method The method to check.
+ *
+ * @return boolean Whether the method is supported or PEAR_Error on
+ * failure.
+ */
+ function hasAuthMech($method)
+ {
+ if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) {
+ return PEAR::raiseError('Not currently connected', 7);
+ }
+
+ $method = trim($this->_toUpper($method));
+ if (is_array($this->_capability['sasl'])) {
+ foreach ($this->_capability['sasl'] as $sasl) {
+ if ($sasl == $method) {
+ return true;
+ }
+ }
+ }
+
+ return false;
+ }
+
+ /**
+ * Handles the authentication using any known method.
+ *
+ * @param string $uid The userid to authenticate as.
+ * @param string $pwd The password to authenticate with.
+ * @param string $userMethod The method to use. If empty, the class chooses
+ * the best (strongest) available method.
+ * @param string $euser The effective uid to authenticate as.
+ *
+ * @return void
+ */
+ function _cmdAuthenticate($uid, $pwd, $userMethod = null, $euser = '')
+ {
+ if (PEAR::isError($method = $this->_getBestAuthMethod($userMethod))) {
+ return $method;
+ }
+ switch ($method) {
+ case 'DIGEST-MD5':
+ return $this->_authDigestMD5($uid, $pwd, $euser);
+ case 'CRAM-MD5':
+ $result = $this->_authCRAMMD5($uid, $pwd, $euser);
+ break;
+ case 'LOGIN':
+ $result = $this->_authLOGIN($uid, $pwd, $euser);
+ break;
+ case 'PLAIN':
+ $result = $this->_authPLAIN($uid, $pwd, $euser);
+ break;
+ case 'EXTERNAL':
+ $result = $this->_authEXTERNAL($uid, $pwd, $euser);
+ break;
+ default :
+ $result = PEAR::raiseError(
+ $method . ' is not a supported authentication method'
+ );
+ break;
+ }
+
+ if (PEAR::isError($res = $this->_doCmd())) {
+ return $res;
+ }
+
+ return $result;
+ }
+
+ /**
+ * Authenticates the user using the PLAIN method.
+ *
+ * @param string $user The userid to authenticate as.
+ * @param string $pass The password to authenticate with.
+ * @param string $euser The effective uid to authenticate as.
+ *
+ * @return void
+ */
+ function _authPLAIN($user, $pass, $euser)
+ {
+ return $this->_sendCmd(
+ sprintf(
+ 'AUTHENTICATE "PLAIN" "%s"',
+ base64_encode($euser . chr(0) . $user . chr(0) . $pass)
+ )
+ );
+ }
+
+ /**
+ * Authenticates the user using the LOGIN method.
+ *
+ * @param string $user The userid to authenticate as.
+ * @param string $pass The password to authenticate with.
+ * @param string $euser The effective uid to authenticate as.
+ *
+ * @return void
+ */
+ function _authLOGIN($user, $pass, $euser)
+ {
+ if (PEAR::isError($result = $this->_sendCmd('AUTHENTICATE "LOGIN"'))) {
+ return $result;
+ }
+ if (PEAR::isError($result = $this->_doCmd('"' . base64_encode($user) . '"', true))) {
+ return $result;
+ }
+ return $this->_doCmd('"' . base64_encode($pass) . '"', true);
+ }
+
+ /**
+ * Authenticates the user using the CRAM-MD5 method.
+ *
+ * @param string $user The userid to authenticate as.
+ * @param string $pass The password to authenticate with.
+ * @param string $euser The effective uid to authenticate as.
+ *
+ * @return void
+ */
+ function _authCRAMMD5($user, $pass, $euser)
+ {
+ if (PEAR::isError($challenge = $this->_doCmd('AUTHENTICATE "CRAM-MD5"', true))) {
+ return $challenge;
+ }
+
+ $challenge = base64_decode(trim($challenge));
+ $cram = Auth_SASL::factory('crammd5');
+ if (PEAR::isError($response = $cram->getResponse($user, $pass, $challenge))) {
+ return $response;
+ }
+
+ return $this->_sendStringResponse(base64_encode($response));
+ }
+
+ /**
+ * Authenticates the user using the DIGEST-MD5 method.
+ *
+ * @param string $user The userid to authenticate as.
+ * @param string $pass The password to authenticate with.
+ * @param string $euser The effective uid to authenticate as.
+ *
+ * @return void
+ */
+ function _authDigestMD5($user, $pass, $euser)
+ {
+ if (PEAR::isError($challenge = $this->_doCmd('AUTHENTICATE "DIGEST-MD5"', true))) {
+ return $challenge;
+ }
+
+ $challenge = base64_decode(trim($challenge));
+ $digest = Auth_SASL::factory('digestmd5');
+ // @todo Really 'localhost'?
+ if (PEAR::isError($response = $digest->getResponse($user, $pass, $challenge, 'localhost', 'sieve', $euser))) {
+ return $response;
+ }
+
+ if (PEAR::isError($result = $this->_sendStringResponse(base64_encode($response)))) {
+ return $result;
+ }
+ if (PEAR::isError($result = $this->_doCmd('', true))) {
+ return $result;
+ }
+ if ($this->_toUpper(substr($result, 0, 2)) == 'OK') {
+ return;
+ }
+
+ /* We don't use the protocol's third step because SIEVE doesn't allow
+ * subsequent authentication, so we just silently ignore it. */
+ if (PEAR::isError($result = $this->_sendStringResponse(''))) {
+ return $result;
+ }
+
+ return $this->_doCmd();
+ }
+
+ /**
+ * Authenticates the user using the EXTERNAL method.
+ *
+ * @param string $user The userid to authenticate as.
+ * @param string $pass The password to authenticate with.
+ * @param string $euser The effective uid to authenticate as.
+ *
+ * @return void
+ *
+ * @since 1.1.7
+ */
+ function _authEXTERNAL($user, $pass, $euser)
+ {
+ $cmd = sprintf(
+ 'AUTHENTICATE "EXTERNAL" "%s"',
+ base64_encode(strlen($euser) ? $euser : $user)
+ );
+ return $this->_sendCmd($cmd);
+ }
+
+ /**
+ * Removes a script from the server.
+ *
+ * @param string $scriptname Name of the script to delete.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function _cmdDeleteScript($scriptname)
+ {
+ if (NET_SIEVE_STATE_TRANSACTION != $this->_state) {
+ return PEAR::raiseError('Not currently in AUTHORISATION state', 1);
+ }
+
+ $command = sprintf('DELETESCRIPT %s', $this->_escape($scriptname));
+ if (PEAR::isError($res = $this->_doCmd($command))) {
+ return $res;
+ }
+ return true;
+ }
+
+ /**
+ * Retrieves the contents of the named script.
+ *
+ * @param string $scriptname Name of the script to retrieve.
+ *
+ * @return string The script if successful, PEAR_Error otherwise.
+ */
+ function _cmdGetScript($scriptname)
+ {
+ if (NET_SIEVE_STATE_TRANSACTION != $this->_state) {
+ return PEAR::raiseError('Not currently in AUTHORISATION state', 1);
+ }
+
+ $command = sprintf('GETSCRIPT %s', $this->_escape($scriptname));
+ if (PEAR::isError($res = $this->_doCmd($command))) {
+ return $res;
+ }
+
+ return preg_replace('/^{[0-9]+}\r\n/', '', $res);
+ }
+
+ /**
+ * Sets the active script, i.e. the one that gets run on new mail by the
+ * server.
+ *
+ * @param string $scriptname The name of the script to mark as active.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function _cmdSetActive($scriptname)
+ {
+ if (NET_SIEVE_STATE_TRANSACTION != $this->_state) {
+ return PEAR::raiseError('Not currently in AUTHORISATION state', 1);
+ }
+
+ $command = sprintf('SETACTIVE %s', $this->_escape($scriptname));
+ if (PEAR::isError($res = $this->_doCmd($command))) {
+ return $res;
+ }
+
+ $this->_activeScript = $scriptname;
+ return true;
+ }
+
+ /**
+ * Returns the list of scripts on the server.
+ *
+ * @return array An array with the list of scripts in the first element
+ * and the active script in the second element on success,
+ * PEAR_Error otherwise.
+ */
+ function _cmdListScripts()
+ {
+ if (NET_SIEVE_STATE_TRANSACTION != $this->_state) {
+ return PEAR::raiseError('Not currently in AUTHORISATION state', 1);
+ }
+
+ if (PEAR::isError($res = $this->_doCmd('LISTSCRIPTS'))) {
+ return $res;
+ }
+
+ $scripts = array();
+ $activescript = null;
+ $res = explode("\r\n", $res);
+ foreach ($res as $value) {
+ if (preg_match('/^"(.*)"( ACTIVE)?$/i', $value, $matches)) {
+ $script_name = stripslashes($matches[1]);
+ $scripts[] = $script_name;
+ if (!empty($matches[2])) {
+ $activescript = $script_name;
+ }
+ }
+ }
+
+ return array($scripts, $activescript);
+ }
+
+ /**
+ * Adds a script to the server.
+ *
+ * @param string $scriptname Name of the new script.
+ * @param string $scriptdata The new script.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function _cmdPutScript($scriptname, $scriptdata)
+ {
+ if (NET_SIEVE_STATE_TRANSACTION != $this->_state) {
+ return PEAR::raiseError('Not currently in AUTHORISATION state', 1);
+ }
+
+ $stringLength = $this->_getLineLength($scriptdata);
+ $command = sprintf("PUTSCRIPT %s {%d+}\r\n%s",
+ $this->_escape($scriptname), $stringLength, $scriptdata);
+
+ if (PEAR::isError($res = $this->_doCmd($command))) {
+ return $res;
+ }
+
+ return true;
+ }
+
+ /**
+ * Logs out of the server and terminates the connection.
+ *
+ * @param boolean $sendLogoutCMD Whether to send LOGOUT command before
+ * disconnecting.
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function _cmdLogout($sendLogoutCMD = true)
+ {
+ if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) {
+ return PEAR::raiseError('Not currently connected', 1);
+ }
+
+ if ($sendLogoutCMD) {
+ if (PEAR::isError($res = $this->_doCmd('LOGOUT'))) {
+ return $res;
+ }
+ }
+
+ $this->_sock->disconnect();
+ $this->_state = NET_SIEVE_STATE_DISCONNECTED;
+
+ return true;
+ }
+
+ /**
+ * Sends the CAPABILITY command
+ *
+ * @return boolean True on success, PEAR_Error otherwise.
+ */
+ function _cmdCapability()
+ {
+ if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) {
+ return PEAR::raiseError('Not currently connected', 1);
+ }
+ if (PEAR::isError($res = $this->_doCmd('CAPABILITY'))) {
+ return $res;
+ }
+ $this->_parseCapability($res);
+ return true;
+ }
+
+ /**
+ * Parses the response from the CAPABILITY command and stores the result
+ * in $_capability.
+ *
+ * @param string $data The response from the capability command.
+ *
+ * @return void
+ */
+ function _parseCapability($data)
+ {
+ // Clear the cached capabilities.
+ $this->_capability = array('sasl' => array(),
+ 'extensions' => array());
+
+ $data = preg_split('/\r?\n/', $this->_toUpper($data), -1, PREG_SPLIT_NO_EMPTY);
+
+ for ($i = 0; $i < count($data); $i++) {
+ if (!preg_match('/^"([A-Z]+)"( "(.*)")?$/', $data[$i], $matches)) {
+ continue;
+ }
+ switch ($matches[1]) {
+ case 'IMPLEMENTATION':
+ $this->_capability['implementation'] = $matches[3];
+ break;
+
+ case 'SASL':
+ $this->_capability['sasl'] = preg_split('/\s+/', $matches[3]);
+ break;
+
+ case 'SIEVE':
+ $this->_capability['extensions'] = preg_split('/\s+/', $matches[3]);
+ break;
+
+ case 'STARTTLS':
+ $this->_capability['starttls'] = true;
+ break;
+ }
+ }
+ }
+
+ /**
+ * Sends a command to the server
+ *
+ * @param string $cmd The command to send.
+ *
+ * @return void
+ */
+ function _sendCmd($cmd)
+ {
+ $status = $this->_sock->getStatus();
+ if (PEAR::isError($status) || $status['eof']) {
+ return PEAR::raiseError('Failed to write to socket: connection lost');
+ }
+ if (PEAR::isError($error = $this->_sock->write($cmd . "\r\n"))) {
+ return PEAR::raiseError(
+ 'Failed to write to socket: ' . $error->getMessage()
+ );
+ }
+ $this->_debug("C: $cmd");
+ }
+
+ /**
+ * Sends a string response to the server.
+ *
+ * @param string $str The string to send.
+ *
+ * @return void
+ */
+ function _sendStringResponse($str)
+ {
+ return $this->_sendCmd('{' . $this->_getLineLength($str) . "+}\r\n" . $str);
+ }
+
+ /**
+ * Receives a single line from the server.
+ *
+ * @return string The server response line.
+ */
+ function _recvLn()
+ {
+ if (PEAR::isError($lastline = $this->_sock->gets(8192))) {
+ return PEAR::raiseError(
+ 'Failed to read from socket: ' . $lastline->getMessage()
+ );
+ }
+
+ $lastline = rtrim($lastline);
+ $this->_debug("S: $lastline");
+
+ if ($lastline === '') {
+ return PEAR::raiseError('Failed to read from socket');
+ }
+
+ return $lastline;
+ }
+
+ /**
+ * Receives x bytes from the server.
+ *
+ * @param int $length Number of bytes to read
+ *
+ * @return string The server response.
+ */
+ function _recvBytes($length)
+ {
+ $response = '';
+ $response_length = 0;
+
+ while ($response_length < $length) {
+ $response .= $this->_sock->read($length - $response_length);
+ $response_length = $this->_getLineLength($response);
+ }
+
+ $this->_debug("S: " . rtrim($response));
+
+ return $response;
+ }
+
+ /**
+ * Send a command and retrieves a response from the server.
+ *
+ * @param string $cmd The command to send.
+ * @param boolean $auth Whether this is an authentication command.
+ *
+ * @return string|PEAR_Error Reponse string if an OK response, PEAR_Error
+ * if a NO response.
+ */
+ function _doCmd($cmd = '', $auth = false)
+ {
+ $referralCount = 0;
+ while ($referralCount < $this->_maxReferralCount) {
+ if (strlen($cmd)) {
+ if (PEAR::isError($error = $this->_sendCmd($cmd))) {
+ return $error;
+ }
+ }
+
+ $response = '';
+ while (true) {
+ if (PEAR::isError($line = $this->_recvLn())) {
+ return $line;
+ }
+ $uc_line = $this->_toUpper($line);
+
+ if ('OK' == substr($uc_line, 0, 2)) {
+ $response .= $line;
+ return rtrim($response);
+ }
+
+ if ('NO' == substr($uc_line, 0, 2)) {
+ // Check for string literal error message.
+ if (preg_match('/{([0-9]+)}$/i', $line, $matches)) {
+ $line = substr($line, 0, -(strlen($matches[1])+2))
+ . str_replace(
+ "\r\n", ' ', $this->_recvBytes($matches[1] + 2)
+ );
+ }
+ return PEAR::raiseError(trim($response . substr($line, 2)), 3);
+ }
+
+ if ('BYE' == substr($uc_line, 0, 3)) {
+ if (PEAR::isError($error = $this->disconnect(false))) {
+ return PEAR::raiseError(
+ 'Cannot handle BYE, the error was: '
+ . $error->getMessage(),
+ 4
+ );
+ }
+ // Check for referral, then follow it. Otherwise, carp an
+ // error.
+ if (preg_match('/^bye \(referral "(sieve:\/\/)?([^"]+)/i', $line, $matches)) {
+ // Replace the old host with the referral host
+ // preserving any protocol prefix.
+ $this->_data['host'] = preg_replace(
+ '/\w+(?!(\w|\:\/\/)).*/', $matches[2],
+ $this->_data['host']
+ );
+ if (PEAR::isError($error = $this->_handleConnectAndLogin())) {
+ return PEAR::raiseError(
+ 'Cannot follow referral to '
+ . $this->_data['host'] . ', the error was: '
+ . $error->getMessage(),
+ 5
+ );
+ }
+ break;
+ }
+ return PEAR::raiseError(trim($response . $line), 6);
+ }
+
+ if (preg_match('/^{([0-9]+)}/i', $line, $matches)) {
+ // Matches literal string responses.
+ $line = $this->_recvBytes($matches[1] + 2);
+
+ if (!$auth) {
+ // Receive the pending OK only if we aren't
+ // authenticating since string responses during
+ // authentication don't need an OK.
+ $this->_recvLn();
+ }
+ return $line;
+ }
+
+ if ($auth) {
+ // String responses during authentication don't need an
+ // OK.
+ $response .= $line;
+ return rtrim($response);
+ }
+
+ $response .= $line . "\r\n";
+ $referralCount++;
+ }
+ }
+
+ return PEAR::raiseError('Max referral count (' . $referralCount . ') reached. Cyrus murder loop error?', 7);
+ }
+
+ /**
+ * Returns the name of the best authentication method that the server
+ * has advertised.
+ *
+ * @param string $userMethod Only consider this method as available.
+ *
+ * @return string The name of the best supported authentication method or
+ * a PEAR_Error object on failure.
+ */
+ function _getBestAuthMethod($userMethod = null)
+ {
+ if (!isset($this->_capability['sasl'])) {
+ return PEAR::raiseError('This server doesn\'t support any authentication methods. SASL problem?');
+ }
+ if (!$this->_capability['sasl']) {
+ return PEAR::raiseError('This server doesn\'t support any authentication methods.');
+ }
+
+ if ($userMethod) {
+ if (in_array($userMethod, $this->_capability['sasl'])) {
+ return $userMethod;
+ }
+ return PEAR::raiseError(
+ sprintf('No supported authentication method found. The server supports these methods: %s, but we want to use: %s',
+ implode(', ', $this->_capability['sasl']),
+ $userMethod));
+ }
+
+ foreach ($this->supportedAuthMethods as $method) {
+ if (in_array($method, $this->_capability['sasl'])) {
+ return $method;
+ }
+ }
+
+ return PEAR::raiseError(
+ sprintf('No supported authentication method found. The server supports these methods: %s, but we only support: %s',
+ implode(', ', $this->_capability['sasl']),
+ implode(', ', $this->supportedAuthMethods)));
+ }
+
+ /**
+ * Starts a TLS connection.
+ *
+ * @return boolean True on success, PEAR_Error on failure.
+ */
+ function _startTLS()
+ {
+ if (PEAR::isError($res = $this->_doCmd('STARTTLS'))) {
+ return $res;
+ }
+
+ if (!stream_socket_enable_crypto($this->_sock->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) {
+ return PEAR::raiseError('Failed to establish TLS connection', 2);
+ }
+
+ $this->_debug('STARTTLS negotiation successful');
+
+ // The server should be sending a CAPABILITY response after
+ // negotiating TLS. Read it, and ignore if it doesn't.
+ // Doesn't work with older timsieved versions
+ $regexp = '/^CYRUS TIMSIEVED V([0-9.]+)/';
+ if (!preg_match($regexp, $this->_capability['implementation'], $matches)
+ || version_compare($matches[1], '2.3.10', '>=')
+ ) {
+ $this->_doCmd();
+ }
+
+ // RFC says we need to query the server capabilities again now that we
+ // are under encryption.
+ if (PEAR::isError($res = $this->_cmdCapability())) {
+ return PEAR::raiseError(
+ 'Failed to connect, server said: ' . $res->getMessage(), 2
+ );
+ }
+
+ return true;
+ }
+
+ /**
+ * Returns the length of a string.
+ *
+ * @param string $string A string.
+ *
+ * @return integer The length of the string.
+ */
+ function _getLineLength($string)
+ {
+ if (extension_loaded('mbstring')) {
+ return mb_strlen($string, 'latin1');
+ } else {
+ return strlen($string);
+ }
+ }
+
+ /**
+ * Locale independant strtoupper() implementation.
+ *
+ * @param string $string The string to convert to lowercase.
+ *
+ * @return string The lowercased string, based on ASCII encoding.
+ */
+ function _toUpper($string)
+ {
+ $language = setlocale(LC_CTYPE, 0);
+ setlocale(LC_CTYPE, 'C');
+ $string = strtoupper($string);
+ setlocale(LC_CTYPE, $language);
+ return $string;
+ }
+
+ /**
+ * Convert string into RFC's quoted-string or literal-c2s form
+ *
+ * @param string $string The string to convert.
+ *
+ * @return string Result string
+ */
+ function _escape($string)
+ {
+ // Some implementations doesn't allow UTF-8 characters in quoted-string
+ // It's safe to use literal-c2s
+ if (preg_match('/[^\x01-\x09\x0B-\x0C\x0E-\x7F]/', $string)) {
+ return sprintf("{%d+}\r\n%s", $this->_getLineLength($string), $string);
+ }
+
+ return '"' . addcslashes($string, '\\"') . '"';
+ }
+
+ /**
+ * Write debug text to the current debug output handler.
+ *
+ * @param string $message Debug message text.
+ *
+ * @return void
+ */
+ function _debug($message)
+ {
+ if ($this->_debug) {
+ if ($this->_debug_handler) {
+ call_user_func_array($this->_debug_handler, array(&$this, $message));
+ } else {
+ echo "$message\n";
+ }
+ }
+ }
+}
diff --git a/plugins/managesieve/lib/rcube_sieve.php b/plugins/managesieve/lib/rcube_sieve.php
new file mode 100644
index 000000000..7b7ea6eb6
--- /dev/null
+++ b/plugins/managesieve/lib/rcube_sieve.php
@@ -0,0 +1,378 @@
+<?php
+
+/**
+ * Classes for managesieve operations (using PEAR::Net_Sieve)
+ *
+ * Copyright (C) 2008-2011, The Roundcube Dev Team
+ * Copyright (C) 2011, Kolab Systems AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * $Id$
+ *
+ */
+
+// Managesieve Protocol: RFC5804
+
+define('SIEVE_ERROR_CONNECTION', 1);
+define('SIEVE_ERROR_LOGIN', 2);
+define('SIEVE_ERROR_NOT_EXISTS', 3); // script not exists
+define('SIEVE_ERROR_INSTALL', 4); // script installation
+define('SIEVE_ERROR_ACTIVATE', 5); // script activation
+define('SIEVE_ERROR_DELETE', 6); // script deletion
+define('SIEVE_ERROR_INTERNAL', 7); // internal error
+define('SIEVE_ERROR_DEACTIVATE', 8); // script activation
+define('SIEVE_ERROR_OTHER', 255); // other/unknown error
+
+
+class rcube_sieve
+{
+ private $sieve; // Net_Sieve object
+ private $error = false; // error flag
+ private $list = array(); // scripts list
+
+ public $script; // rcube_sieve_script object
+ public $current; // name of currently loaded script
+ private $disabled; // array of disabled extensions
+ private $exts; // array of supported extensions
+
+
+ /**
+ * Object constructor
+ *
+ * @param string Username (for managesieve login)
+ * @param string Password (for managesieve login)
+ * @param string Managesieve server hostname/address
+ * @param string Managesieve server port number
+ * @param string Managesieve authentication method
+ * @param boolean Enable/disable TLS use
+ * @param array Disabled extensions
+ * @param boolean Enable/disable debugging
+ * @param string Proxy authentication identifier
+ * @param string Proxy authentication password
+ */
+ public function __construct($username, $password='', $host='localhost', $port=2000,
+ $auth_type=null, $usetls=true, $disabled=array(), $debug=false,
+ $auth_cid=null, $auth_pw=null)
+ {
+ $this->sieve = new Net_Sieve();
+
+ if ($debug) {
+ $this->sieve->setDebug(true, array($this, 'debug_handler'));
+ }
+
+ if (PEAR::isError($this->sieve->connect($host, $port, null, $usetls))) {
+ return $this->_set_error(SIEVE_ERROR_CONNECTION);
+ }
+
+ if (!empty($auth_cid)) {
+ $authz = $username;
+ $username = $auth_cid;
+ $password = $auth_pw;
+ }
+
+ if (PEAR::isError($this->sieve->login($username, $password,
+ $auth_type ? strtoupper($auth_type) : null, $authz))
+ ) {
+ return $this->_set_error(SIEVE_ERROR_LOGIN);
+ }
+
+ $this->exts = $this->get_extensions();
+ $this->disabled = $disabled;
+ }
+
+ public function __destruct() {
+ $this->sieve->disconnect();
+ }
+
+ /**
+ * Getter for error code
+ */
+ public function error()
+ {
+ return $this->error ? $this->error : false;
+ }
+
+ /**
+ * Saves current script into server
+ */
+ public function save($name = null)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if (!$this->script)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if (!$name)
+ $name = $this->current;
+
+ $script = $this->script->as_text();
+
+ if (!$script)
+ $script = '/* empty script */';
+
+ if (PEAR::isError($this->sieve->installScript($name, $script)))
+ return $this->_set_error(SIEVE_ERROR_INSTALL);
+
+ return true;
+ }
+
+ /**
+ * Saves text script into server
+ */
+ public function save_script($name, $content = null)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if (!$content)
+ $content = '/* empty script */';
+
+ if (PEAR::isError($this->sieve->installScript($name, $content)))
+ return $this->_set_error(SIEVE_ERROR_INSTALL);
+
+ return true;
+ }
+
+ /**
+ * Activates specified script
+ */
+ public function activate($name = null)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if (!$name)
+ $name = $this->current;
+
+ if (PEAR::isError($this->sieve->setActive($name)))
+ return $this->_set_error(SIEVE_ERROR_ACTIVATE);
+
+ return true;
+ }
+
+ /**
+ * De-activates specified script
+ */
+ public function deactivate()
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if (PEAR::isError($this->sieve->setActive('')))
+ return $this->_set_error(SIEVE_ERROR_DEACTIVATE);
+
+ return true;
+ }
+
+ /**
+ * Removes specified script
+ */
+ public function remove($name = null)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if (!$name)
+ $name = $this->current;
+
+ // script must be deactivated first
+ if ($name == $this->sieve->getActive())
+ if (PEAR::isError($this->sieve->setActive('')))
+ return $this->_set_error(SIEVE_ERROR_DELETE);
+
+ if (PEAR::isError($this->sieve->removeScript($name)))
+ return $this->_set_error(SIEVE_ERROR_DELETE);
+
+ if ($name == $this->current)
+ $this->current = null;
+
+ return true;
+ }
+
+ /**
+ * Gets list of supported by server Sieve extensions
+ */
+ public function get_extensions()
+ {
+ if ($this->exts)
+ return $this->exts;
+
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ $ext = $this->sieve->getExtensions();
+ // we're working on lower-cased names
+ $ext = array_map('strtolower', (array) $ext);
+
+ if ($this->script) {
+ $supported = $this->script->get_extensions();
+ foreach ($ext as $idx => $ext_name)
+ if (!in_array($ext_name, $supported))
+ unset($ext[$idx]);
+ }
+
+ return array_values($ext);
+ }
+
+ /**
+ * Gets list of scripts from server
+ */
+ public function get_scripts()
+ {
+ if (!$this->list) {
+
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ $list = $this->sieve->listScripts();
+
+ if (PEAR::isError($list))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+
+ $this->list = $list;
+ }
+
+ return $this->list;
+ }
+
+ /**
+ * Returns active script name
+ */
+ public function get_active()
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ return $this->sieve->getActive();
+ }
+
+ /**
+ * Loads script by name
+ */
+ public function load($name)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if ($this->current == $name)
+ return true;
+
+ $script = $this->sieve->getScript($name);
+
+ if (PEAR::isError($script))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+
+ // try to parse from Roundcube format
+ $this->script = $this->_parse($script);
+
+ $this->current = $name;
+
+ return true;
+ }
+
+ /**
+ * Loads script from text content
+ */
+ public function load_script($script)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ // try to parse from Roundcube format
+ $this->script = $this->_parse($script);
+ }
+
+ /**
+ * Creates rcube_sieve_script object from text script
+ */
+ private function _parse($txt)
+ {
+ // parse
+ $script = new rcube_sieve_script($txt, $this->disabled, $this->exts);
+
+ // fix/convert to Roundcube format
+ if (!empty($script->content)) {
+ // replace all elsif with if+stop, we support only ifs
+ foreach ($script->content as $idx => $rule) {
+ if (empty($rule['type']) || !preg_match('/^(if|elsif|else)$/', $rule['type'])) {
+ continue;
+ }
+
+ $script->content[$idx]['type'] = 'if';
+
+ // 'stop' not found?
+ foreach ($rule['actions'] as $action) {
+ if (preg_match('/^(stop|vacation)$/', $action['type'])) {
+ continue 2;
+ }
+ }
+ if (empty($script->content[$idx+1]) || $script->content[$idx+1]['type'] != 'if') {
+ $script->content[$idx]['actions'][] = array('type' => 'stop');
+ }
+ }
+ }
+
+ return $script;
+ }
+
+ /**
+ * Gets specified script as text
+ */
+ public function get_script($name)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ $content = $this->sieve->getScript($name);
+
+ if (PEAR::isError($content))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+
+ return $content;
+ }
+
+ /**
+ * Creates empty script or copy of other script
+ */
+ public function copy($name, $copy)
+ {
+ if (!$this->sieve)
+ return $this->_set_error(SIEVE_ERROR_INTERNAL);
+
+ if ($copy) {
+ $content = $this->sieve->getScript($copy);
+
+ if (PEAR::isError($content))
+ return $this->_set_error(SIEVE_ERROR_OTHER);
+ }
+
+ return $this->save_script($name, $content);
+ }
+
+ private function _set_error($error)
+ {
+ $this->error = $error;
+ return false;
+ }
+
+ /**
+ * This is our own debug handler for connection
+ */
+ public function debug_handler(&$sieve, $message)
+ {
+ write_log('sieve', preg_replace('/\r\n$/', '', $message));
+ }
+}
diff --git a/plugins/managesieve/lib/rcube_sieve_script.php b/plugins/managesieve/lib/rcube_sieve_script.php
new file mode 100644
index 000000000..3c6993dcc
--- /dev/null
+++ b/plugins/managesieve/lib/rcube_sieve_script.php
@@ -0,0 +1,940 @@
+<?php
+
+/**
+ * Class for operations on Sieve scripts
+ *
+ * Copyright (C) 2008-2011, The Roundcube Dev Team
+ * Copyright (C) 2011, Kolab Systems AG
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * $Id$
+ *
+ */
+
+class rcube_sieve_script
+{
+ public $content = array(); // script rules array
+
+ private $vars = array(); // "global" variables
+ private $prefix = ''; // script header (comments)
+ private $capabilities = array(); // Sieve extensions supported by server
+ private $supported = array( // Sieve extensions supported by class
+ 'fileinto', // RFC3028
+ 'reject', // RFC5429
+ 'ereject', // RFC5429
+ 'copy', // RFC3894
+ 'vacation', // RFC5230
+ 'relational', // RFC3431
+ 'regex', // draft-ietf-sieve-regex-01
+ 'imapflags', // draft-melnikov-sieve-imapflags-06
+ 'imap4flags', // RFC5232
+ 'include', // draft-ietf-sieve-include-12
+ 'variables', // RFC5229
+ // TODO: body, notify
+ );
+
+ /**
+ * Object constructor
+ *
+ * @param string Script's text content
+ * @param array List of disabled extensions
+ * @param array List of capabilities supported by server
+ */
+ public function __construct($script, $disabled=array(), $capabilities=array())
+ {
+ if (!empty($disabled)) {
+ // we're working on lower-cased names
+ $disabled = array_map('strtolower', (array) $disabled);
+ foreach ($disabled as $ext) {
+ if (($idx = array_search($ext, $this->supported)) !== false) {
+ unset($this->supported[$idx]);
+ }
+ }
+ }
+
+ $this->capabilities = array_map('strtolower', (array) $capabilities);
+
+ // Parse text content of the script
+ $this->_parse_text($script);
+ }
+
+ /**
+ * Adds rule to the script (at the end)
+ *
+ * @param string Rule name
+ * @param array Rule content (as array)
+ *
+ * @return int The index of the new rule
+ */
+ public function add_rule($content)
+ {
+ // TODO: check this->supported
+ array_push($this->content, $content);
+ return sizeof($this->content)-1;
+ }
+
+ public function delete_rule($index)
+ {
+ if(isset($this->content[$index])) {
+ unset($this->content[$index]);
+ return true;
+ }
+ return false;
+ }
+
+ public function size()
+ {
+ return sizeof($this->content);
+ }
+
+ public function update_rule($index, $content)
+ {
+ // TODO: check this->supported
+ if ($this->content[$index]) {
+ $this->content[$index] = $content;
+ return $index;
+ }
+ return false;
+ }
+
+ /**
+ * Sets "global" variable
+ *
+ * @param string $name Variable name
+ * @param string $value Variable value
+ * @param array $mods Variable modifiers
+ */
+ public function set_var($name, $value, $mods = array())
+ {
+ // Check if variable exists
+ for ($i=0, $len=count($this->vars); $i<$len; $i++) {
+ if ($this->vars[$i]['name'] == $name) {
+ break;
+ }
+ }
+
+ $var = array_merge($mods, array('name' => $name, 'value' => $value));
+ $this->vars[$i] = $var;
+ }
+
+ /**
+ * Unsets "global" variable
+ *
+ * @param string $name Variable name
+ */
+ public function unset_var($name)
+ {
+ // Check if variable exists
+ foreach ($this->vars as $idx => $var) {
+ if ($var['name'] == $name) {
+ unset($this->vars[$idx]);
+ break;
+ }
+ }
+ }
+
+ /**
+ * Gets the value of "global" variable
+ *
+ * @param string $name Variable name
+ *
+ * @return string Variable value
+ */
+ public function get_var($name)
+ {
+ // Check if variable exists
+ for ($i=0, $len=count($this->vars); $i<$len; $i++) {
+ if ($this->vars[$i]['name'] == $name) {
+ return $this->vars[$i]['name'];
+ }
+ }
+ }
+
+ /**
+ * Sets script header content
+ *
+ * @param string $text Header content
+ */
+ public function set_prefix($text)
+ {
+ $this->prefix = $text;
+ }
+
+ /**
+ * Returns script as text
+ */
+ public function as_text()
+ {
+ $output = '';
+ $exts = array();
+ $idx = 0;
+
+ if (!empty($this->vars)) {
+ if (in_array('variables', (array)$this->capabilities)) {
+ $has_vars = true;
+ array_push($exts, 'variables');
+ }
+ foreach ($this->vars as $var) {
+ if (empty($has_vars)) {
+ // 'variables' extension not supported, put vars in comments
+ $output .= sprintf("# %s %s\n", $var['name'], $var['value']);
+ }
+ else {
+ $output .= 'set ';
+ foreach (array_diff(array_keys($var), array('name', 'value')) as $opt) {
+ $output .= ":$opt ";
+ }
+ $output .= self::escape_string($var['name']) . ' ' . self::escape_string($var['value']) . ";\n";
+ }
+ }
+ }
+
+ // rules
+ foreach ($this->content as $rule) {
+ $extension = '';
+ $script = '';
+ $tests = array();
+ $i = 0;
+
+ // header
+ if (!empty($rule['name']) && strlen($rule['name'])) {
+ $script .= '# rule:[' . $rule['name'] . "]\n";
+ }
+
+ // constraints expressions
+ if (!empty($rule['tests'])) {
+ foreach ($rule['tests'] as $test) {
+ $tests[$i] = '';
+ switch ($test['test']) {
+ case 'size':
+ $tests[$i] .= ($test['not'] ? 'not ' : '');
+ $tests[$i] .= 'size :' . ($test['type']=='under' ? 'under ' : 'over ') . $test['arg'];
+ break;
+ case 'true':
+ $tests[$i] .= ($test['not'] ? 'false' : 'true');
+ break;
+ case 'exists':
+ $tests[$i] .= ($test['not'] ? 'not ' : '');
+ $tests[$i] .= 'exists ' . self::escape_string($test['arg']);
+ break;
+ case 'header':
+ $tests[$i] .= ($test['not'] ? 'not ' : '');
+
+ // relational operator + comparator
+ if (preg_match('/^(value|count)-([gteqnl]{2})/', $test['type'], $m)) {
+ array_push($exts, 'relational');
+ array_push($exts, 'comparator-i;ascii-numeric');
+
+ $tests[$i] .= 'header :' . $m[1] . ' "' . $m[2] . '" :comparator "i;ascii-numeric"';
+ }
+ else {
+ if ($test['type'] == 'regex') {
+ array_push($exts, 'regex');
+ }
+
+ $tests[$i] .= 'header :' . $test['type'];
+ }
+
+ $tests[$i] .= ' ' . self::escape_string($test['arg1']);
+ $tests[$i] .= ' ' . self::escape_string($test['arg2']);
+ break;
+ }
+ $i++;
+ }
+ }
+
+ // disabled rule: if false #....
+ if (!empty($tests)) {
+ $script .= 'if ' . ($rule['disabled'] ? 'false # ' : '');
+
+ if (count($tests) > 1) {
+ $tests_str = implode(', ', $tests);
+ }
+ else {
+ $tests_str = $tests[0];
+ }
+
+ if ($rule['join'] || count($tests) > 1) {
+ $script .= sprintf('%s (%s)', $rule['join'] ? 'allof' : 'anyof', $tests_str);
+ }
+ else {
+ $script .= $tests_str;
+ }
+ $script .= "\n{\n";
+ }
+
+ // action(s)
+ if (!empty($rule['actions'])) {
+ foreach ($rule['actions'] as $action) {
+ $action_script = '';
+
+ switch ($action['type']) {
+
+ case 'fileinto':
+ array_push($exts, 'fileinto');
+ $action_script .= 'fileinto ';
+ if ($action['copy']) {
+ $action_script .= ':copy ';
+ array_push($exts, 'copy');
+ }
+ $action_script .= self::escape_string($action['target']);
+ break;
+
+ case 'redirect':
+ $action_script .= 'redirect ';
+ if ($action['copy']) {
+ $action_script .= ':copy ';
+ array_push($exts, 'copy');
+ }
+ $action_script .= self::escape_string($action['target']);
+ break;
+
+ case 'reject':
+ case 'ereject':
+ array_push($exts, $action['type']);
+ $action_script .= $action['type'].' '
+ . self::escape_string($action['target']);
+ break;
+
+ case 'addflag':
+ case 'setflag':
+ case 'removeflag':
+ if (is_array($this->capabilities) && in_array('imap4flags', $this->capabilities))
+ array_push($exts, 'imap4flags');
+ else
+ array_push($exts, 'imapflags');
+
+ $action_script .= $action['type'].' '
+ . self::escape_string($action['target']);
+ break;
+
+ case 'keep':
+ case 'discard':
+ case 'stop':
+ $action_script .= $action['type'];
+ break;
+
+ case 'include':
+ array_push($exts, 'include');
+ $action_script .= 'include ';
+ foreach (array_diff(array_keys($action), array('target', 'type')) as $opt) {
+ $action_script .= ":$opt ";
+ }
+ $action_script .= self::escape_string($action['target']);
+ break;
+
+ case 'set':
+ array_push($exts, 'variables');
+ $action_script .= 'set ';
+ foreach (array_diff(array_keys($action), array('name', 'value', 'type')) as $opt) {
+ $action_script .= ":$opt ";
+ }
+ $action_script .= self::escape_string($action['name']) . ' ' . self::escape_string($action['value']);
+ break;
+
+ case 'vacation':
+ array_push($exts, 'vacation');
+ $action_script .= 'vacation';
+ if (!empty($action['days']))
+ $action_script .= " :days " . $action['days'];
+ if (!empty($action['addresses']))
+ $action_script .= " :addresses " . self::escape_string($action['addresses']);
+ if (!empty($action['subject']))
+ $action_script .= " :subject " . self::escape_string($action['subject']);
+ if (!empty($action['handle']))
+ $action_script .= " :handle " . self::escape_string($action['handle']);
+ if (!empty($action['from']))
+ $action_script .= " :from " . self::escape_string($action['from']);
+ if (!empty($action['mime']))
+ $action_script .= " :mime";
+ $action_script .= " " . self::escape_string($action['reason']);
+ break;
+ }
+
+ if ($action_script) {
+ $script .= !empty($tests) ? "\t" : '';
+ $script .= $action_script . ";\n";
+ }
+ }
+ }
+
+ if ($script) {
+ $output .= $script . (!empty($tests) ? "}\n" : '');
+ $idx++;
+ }
+ }
+
+ // requires
+ if (!empty($exts))
+ $output = 'require ["' . implode('","', array_unique($exts)) . "\"];\n" . $output;
+
+ if (!empty($this->prefix)) {
+ $output = $this->prefix . "\n\n" . $output;
+ }
+
+ return $output;
+ }
+
+ /**
+ * Returns script object
+ *
+ */
+ public function as_array()
+ {
+ return $this->content;
+ }
+
+ /**
+ * Returns array of supported extensions
+ *
+ */
+ public function get_extensions()
+ {
+ return array_values($this->supported);
+ }
+
+ /**
+ * Converts text script to rules array
+ *
+ * @param string Text script
+ */
+ private function _parse_text($script)
+ {
+ $prefix = '';
+ $options = array();
+
+ while ($script) {
+ $script = trim($script);
+ $rule = array();
+
+ // Comments
+ while (!empty($script) && $script[0] == '#') {
+ $endl = strpos($script, "\n");
+ $line = $endl ? substr($script, 0, $endl) : $script;
+
+ // Roundcube format
+ if (preg_match('/^# rule:\[(.*)\]/', $line, $matches)) {
+ $rulename = $matches[1];
+ }
+ // KEP:14 variables
+ else if (preg_match('/^# (EDITOR|EDITOR_VERSION) (.+)$/', $line, $matches)) {
+ $this->set_var($matches[1], $matches[2]);
+ }
+ // Horde-Ingo format
+ else if (!empty($options['format']) && $options['format'] == 'INGO'
+ && preg_match('/^# (.*)/', $line, $matches)
+ ) {
+ $rulename = $matches[1];
+ }
+ else if (empty($options['prefix'])) {
+ $prefix .= $line . "\n";
+ }
+
+ $script = ltrim(substr($script, strlen($line) + 1));
+ }
+
+ // handle script header
+ if (empty($options['prefix'])) {
+ $options['prefix'] = true;
+ if ($prefix && strpos($prefix, 'Generated by Ingo')) {
+ $options['format'] = 'INGO';
+ }
+ }
+
+ // Control structures/blocks
+ if (preg_match('/^(if|else|elsif)/i', $script)) {
+ $rule = $this->_tokenize_rule($script);
+ if (strlen($rulename) && !empty($rule)) {
+ $rule['name'] = $rulename;
+ }
+ }
+ // Simple commands
+ else {
+ $rule = $this->_parse_actions($script, ';');
+ if (!empty($rule[0]) && is_array($rule)) {
+ // set "global" variables
+ if ($rule[0]['type'] == 'set') {
+ unset($rule[0]['type']);
+ $this->vars[] = $rule[0];
+ }
+ else {
+ $rule = array('actions' => $rule);
+ }
+ }
+ }
+
+ $rulename = '';
+
+ if (!empty($rule)) {
+ $this->content[] = $rule;
+ }
+ }
+
+ if (!empty($prefix)) {
+ $this->prefix = trim($prefix);
+ }
+ }
+
+ /**
+ * Convert text script fragment to rule object
+ *
+ * @param string Text rule
+ *
+ * @return array Rule data
+ */
+ private function _tokenize_rule(&$content)
+ {
+ $cond = strtolower(self::tokenize($content, 1));
+
+ if ($cond != 'if' && $cond != 'elsif' && $cond != 'else') {
+ return null;
+ }
+
+ $disabled = false;
+ $join = false;
+
+ // disabled rule (false + comment): if false # .....
+ if (preg_match('/^\s*false\s+#/i', $content)) {
+ $content = preg_replace('/^\s*false\s+#\s*/i', '', $content);
+ $disabled = true;
+ }
+
+ while (strlen($content)) {
+ $tokens = self::tokenize($content, true);
+ $separator = array_pop($tokens);
+
+ if (!empty($tokens)) {
+ $token = array_shift($tokens);
+ }
+ else {
+ $token = $separator;
+ }
+
+ $token = strtolower($token);
+
+ if ($token == 'not') {
+ $not = true;
+ $token = strtolower(array_shift($tokens));
+ }
+ else {
+ $not = false;
+ }
+
+ switch ($token) {
+ case 'allof':
+ $join = true;
+ break;
+ case 'anyof':
+ break;
+
+ case 'size':
+ $size = array('test' => 'size', 'not' => $not);
+ for ($i=0, $len=count($tokens); $i<$len; $i++) {
+ if (!is_array($tokens[$i])
+ && preg_match('/^:(under|over)$/i', $tokens[$i])
+ ) {
+ $size['type'] = strtolower(substr($tokens[$i], 1));
+ }
+ else {
+ $size['arg'] = $tokens[$i];
+ }
+ }
+
+ $tests[] = $size;
+ break;
+
+ case 'header':
+ $header = array('test' => 'header', 'not' => $not, 'arg1' => '', 'arg2' => '');
+ for ($i=0, $len=count($tokens); $i<$len; $i++) {
+ if (!is_array($tokens[$i]) && preg_match('/^:comparator$/i', $tokens[$i])) {
+ $i++;
+ }
+ else if (!is_array($tokens[$i]) && preg_match('/^:(count|value)$/i', $tokens[$i])) {
+ $header['type'] = strtolower(substr($tokens[$i], 1)) . '-' . $tokens[++$i];
+ }
+ else if (!is_array($tokens[$i]) && preg_match('/^:(is|contains|matches|regex)$/i', $tokens[$i])) {
+ $header['type'] = strtolower(substr($tokens[$i], 1));
+ }
+ else {
+ $header['arg1'] = $header['arg2'];
+ $header['arg2'] = $tokens[$i];
+ }
+ }
+
+ $tests[] = $header;
+ break;
+
+ case 'exists':
+ $tests[] = array('test' => 'exists', 'not' => $not,
+ 'arg' => array_pop($tokens));
+ break;
+
+ case 'true':
+ $tests[] = array('test' => 'true', 'not' => $not);
+ break;
+
+ case 'false':
+ $tests[] = array('test' => 'true', 'not' => !$not);
+ break;
+ }
+
+ // goto actions...
+ if ($separator == '{') {
+ break;
+ }
+ }
+
+ // ...and actions block
+ if ($tests) {
+ $actions = $this->_parse_actions($content);
+ }
+
+ if ($tests && $actions) {
+ $result = array(
+ 'type' => $cond,
+ 'tests' => $tests,
+ 'actions' => $actions,
+ 'join' => $join,
+ 'disabled' => $disabled,
+ );
+ }
+
+ return $result;
+ }
+
+ /**
+ * Parse body of actions section
+ *
+ * @param string $content Text body
+ * @param string $end End of text separator
+ *
+ * @return array Array of parsed action type/target pairs
+ */
+ private function _parse_actions(&$content, $end = '}')
+ {
+ $result = null;
+
+ while (strlen($content)) {
+ $tokens = self::tokenize($content, true);
+ $separator = array_pop($tokens);
+
+ if (!empty($tokens)) {
+ $token = array_shift($tokens);
+ }
+ else {
+ $token = $separator;
+ }
+
+ switch ($token) {
+ case 'discard':
+ case 'keep':
+ case 'stop':
+ $result[] = array('type' => $token);
+ break;
+
+ case 'fileinto':
+ case 'redirect':
+ $copy = false;
+ $target = '';
+
+ for ($i=0, $len=count($tokens); $i<$len; $i++) {
+ if (strtolower($tokens[$i]) == ':copy') {
+ $copy = true;
+ }
+ else {
+ $target = $tokens[$i];
+ }
+ }
+
+ $result[] = array('type' => $token, 'copy' => $copy,
+ 'target' => $target);
+ break;
+
+ case 'reject':
+ case 'ereject':
+ $result[] = array('type' => $token, 'target' => array_pop($tokens));
+ break;
+
+ case 'vacation':
+ $vacation = array('type' => 'vacation', 'reason' => array_pop($tokens));
+
+ for ($i=0, $len=count($tokens); $i<$len; $i++) {
+ $tok = strtolower($tokens[$i]);
+ if ($tok == ':days') {
+ $vacation['days'] = $tokens[++$i];
+ }
+ else if ($tok == ':subject') {
+ $vacation['subject'] = $tokens[++$i];
+ }
+ else if ($tok == ':addresses') {
+ $vacation['addresses'] = $tokens[++$i];
+ }
+ else if ($tok == ':handle') {
+ $vacation['handle'] = $tokens[++$i];
+ }
+ else if ($tok == ':from') {
+ $vacation['from'] = $tokens[++$i];
+ }
+ else if ($tok == ':mime') {
+ $vacation['mime'] = true;
+ }
+ }
+
+ $result[] = $vacation;
+ break;
+
+ case 'setflag':
+ case 'addflag':
+ case 'removeflag':
+ $result[] = array('type' => $token,
+ // Flags list: last token (skip optional variable)
+ 'target' => $tokens[count($tokens)-1]
+ );
+ break;
+
+ case 'include':
+ $include = array('type' => 'include', 'target' => array_pop($tokens));
+
+ // Parameters: :once, :optional, :global, :personal
+ for ($i=0, $len=count($tokens); $i<$len; $i++) {
+ $tok = strtolower($tokens[$i]);
+ if ($tok[0] == ':') {
+ $include[substr($tok, 1)] = true;
+ }
+ }
+
+ $result[] = $include;
+ break;
+
+ case 'set':
+ $set = array('type' => 'set', 'value' => array_pop($tokens), 'name' => array_pop($tokens));
+
+ // Parameters: :lower :upper :lowerfirst :upperfirst :quotewildcard :length
+ for ($i=0, $len=count($tokens); $i<$len; $i++) {
+ $tok = strtolower($tokens[$i]);
+ if ($tok[0] == ':') {
+ $set[substr($tok, 1)] = true;
+ }
+ }
+
+ $result[] = $set;
+ break;
+
+ case 'require':
+ // skip, will be build according to used commands
+ // $result[] = array('type' => 'require', 'target' => $tokens);
+ break;
+
+ }
+
+ if ($separator == $end)
+ break;
+ }
+
+ return $result;
+ }
+
+ /**
+ * Escape special chars into quoted string value or multi-line string
+ * or list of strings
+ *
+ * @param string $str Text or array (list) of strings
+ *
+ * @return string Result text
+ */
+ static function escape_string($str)
+ {
+ if (is_array($str) && count($str) > 1) {
+ foreach($str as $idx => $val)
+ $str[$idx] = self::escape_string($val);
+
+ return '[' . implode(',', $str) . ']';
+ }
+ else if (is_array($str)) {
+ $str = array_pop($str);
+ }
+
+ // multi-line string
+ if (preg_match('/[\r\n\0]/', $str) || strlen($str) > 1024) {
+ return sprintf("text:\n%s\n.\n", self::escape_multiline_string($str));
+ }
+ // quoted-string
+ else {
+ return '"' . addcslashes($str, '\\"') . '"';
+ }
+ }
+
+ /**
+ * Escape special chars in multi-line string value
+ *
+ * @param string $str Text
+ *
+ * @return string Text
+ */
+ static function escape_multiline_string($str)
+ {
+ $str = preg_split('/(\r?\n)/', $str, -1, PREG_SPLIT_DELIM_CAPTURE);
+
+ foreach ($str as $idx => $line) {
+ // dot-stuffing
+ if (isset($line[0]) && $line[0] == '.') {
+ $str[$idx] = '.' . $line;
+ }
+ }
+
+ return implode($str);
+ }
+
+ /**
+ * Splits script into string tokens
+ *
+ * @param string &$str The script
+ * @param mixed $num Number of tokens to return, 0 for all
+ * or True for all tokens until separator is found.
+ * Separator will be returned as last token.
+ * @param int $in_list Enable to call recursively inside a list
+ *
+ * @return mixed Tokens array or string if $num=1
+ */
+ static function tokenize(&$str, $num=0, $in_list=false)
+ {
+ $result = array();
+
+ // remove spaces from the beginning of the string
+ while (($str = ltrim($str)) !== ''
+ && (!$num || $num === true || count($result) < $num)
+ ) {
+ switch ($str[0]) {
+
+ // Quoted string
+ case '"':
+ $len = strlen($str);
+
+ for ($pos=1; $pos<$len; $pos++) {
+ if ($str[$pos] == '"') {
+ break;
+ }
+ if ($str[$pos] == "\\") {
+ if ($str[$pos + 1] == '"' || $str[$pos + 1] == "\\") {
+ $pos++;
+ }
+ }
+ }
+ if ($str[$pos] != '"') {
+ // error
+ }
+ // we need to strip slashes for a quoted string
+ $result[] = stripslashes(substr($str, 1, $pos - 1));
+ $str = substr($str, $pos + 1);
+ break;
+
+ // Parenthesized list
+ case '[':
+ $str = substr($str, 1);
+ $result[] = self::tokenize($str, 0, true);
+ break;
+ case ']':
+ $str = substr($str, 1);
+ return $result;
+ break;
+
+ // list/test separator
+ case ',':
+ // command separator
+ case ';':
+ // block/tests-list
+ case '(':
+ case ')':
+ case '{':
+ case '}':
+ $sep = $str[0];
+ $str = substr($str, 1);
+ if ($num === true) {
+ $result[] = $sep;
+ break 2;
+ }
+ break;
+
+ // bracket-comment
+ case '/':
+ if ($str[1] == '*') {
+ if ($end_pos = strpos($str, '*/')) {
+ $str = substr($str, $end_pos + 2);
+ }
+ else {
+ // error
+ $str = '';
+ }
+ }
+ break;
+
+ // hash-comment
+ case '#':
+ if ($lf_pos = strpos($str, "\n")) {
+ $str = substr($str, $lf_pos);
+ break;
+ }
+ else {
+ $str = '';
+ }
+
+ // String atom
+ default:
+ // empty or one character
+ if ($str === '' || $str === null) {
+ break 2;
+ }
+ if (strlen($str) < 2) {
+ $result[] = $str;
+ $str = '';
+ break;
+ }
+
+ // tag/identifier/number
+ if (preg_match('/^([a-z0-9:_]+)/i', $str, $m)) {
+ $str = substr($str, strlen($m[1]));
+
+ if ($m[1] != 'text:') {
+ $result[] = $m[1];
+ }
+ // multiline string
+ else {
+ // possible hash-comment after "text:"
+ if (preg_match('/^( |\t)*(#[^\n]+)?\n/', $str, $m)) {
+ $str = substr($str, strlen($m[0]));
+ }
+ // get text until alone dot in a line
+ if (preg_match('/^(.*)\r?\n\.\r?\n/sU', $str, $m)) {
+ $text = $m[1];
+ // remove dot-stuffing
+ $text = str_replace("\n..", "\n.", $text);
+ $str = substr($str, strlen($m[0]));
+ }
+ else {
+ $text = '';
+ }
+
+ $result[] = $text;
+ }
+ }
+
+ break;
+ }
+ }
+
+ return $num === 1 ? (isset($result[0]) ? $result[0] : null) : $result;
+ }
+
+}