diff options
Diffstat (limited to 'plugins/managesieve/lib/Net/Sieve.php')
| -rw-r--r-- | plugins/managesieve/lib/Net/Sieve.php | 1598 |
1 files changed, 812 insertions, 786 deletions
diff --git a/plugins/managesieve/lib/Net/Sieve.php b/plugins/managesieve/lib/Net/Sieve.php index 072905d68..be52540f4 100644 --- a/plugins/managesieve/lib/Net/Sieve.php +++ b/plugins/managesieve/lib/Net/Sieve.php @@ -1,234 +1,280 @@ <?php -// +-----------------------------------------------------------------------+ -// | Copyright (c) 2002-2003, Richard Heyes | -// | Copyright (c) 2006,2008 Anish Mistry | -// | 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.| -// | o The names of the authors may not be used to endorse or promote | -// | products derived from this software without specific prior written | -// | permission. | -// | | -// | 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. | -// | | -// +-----------------------------------------------------------------------+ -// | Author: Richard Heyes <richard@phpguru.org> | -// | Co-Author: Damian Fernandez Sosa <damlists@cnba.uba.ar> | -// | Co-Author: Anish Mistry <amistry@am-productions.biz> | -// +-----------------------------------------------------------------------+ - -require_once('Net/Socket.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 289313 2009-10-07 22:26:33Z yunosh $ + * @link http://pear.php.net/package/Net_Sieve + */ + +require_once 'PEAR.php'; +require_once 'Net/Socket.php'; /** -* TODO -* -* o supportsAuthMech() -*/ + * TODO + * + * o supportsAuthMech() + */ /** -* Disconnected state -* @const NET_SIEVE_STATE_DISCONNECTED -*/ -define('NET_SIEVE_STATE_DISCONNECTED', 1, true); + * Disconnected state + * @const NET_SIEVE_STATE_DISCONNECTED + */ +define('NET_SIEVE_STATE_DISCONNECTED', 1, true); /** -* Authorisation state -* @const NET_SIEVE_STATE_AUTHORISATION -*/ + * 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); + * 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. -* -* SIEVE: RFC3028 http://www.ietf.org/rfc/rfc3028.txt -* MANAGE-SIEVE: http://www.ietf.org/internet-drafts/draft-martin-managesieve-07.txt -* -* @author Richard Heyes <richard@php.net> -* @author Damian Fernandez Sosa <damlists@cnba.uba.ar> -* @author Anish Mistry <amistry@am-productions.biz> -* @access public -* @version 1.2.0 -* @package Net_Sieve -*/ +/** + * 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: @package_version@ + * @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 socket object - * @var object - */ + * 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; /** - * Info about the connect - * @var array - */ + * Parameters and connection information. + * + * @var array + */ var $_data; /** - * Current state of the connection - * @var integer - */ + * Current state of the connection. + * + * One of the NET_SIEVE_STATE_* constants. + * + * @var integer + */ var $_state; /** - * Constructor error is any - * @var object - */ + * Constructor error. + * + * @var PEAR_Error + */ var $_error; /** - * To allow class debuging - * @var boolean - */ + * Whether to enable debugging. + * + * @var boolean + */ var $_debug = false; /** - * Allows picking up of an already established connection - * @var boolean - */ + * 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 - */ + * Whether to use TLS if available. + * + * @var boolean + */ var $_useTLS = true; /** - * Additional options for stream_context_create() - * @var array - */ + * Additional options for stream_context_create(). + * + * @var array + */ var $_options = null; /** - * The auth methods this class support - * @var array - */ - var $supportedAuthMethods=array('DIGEST-MD5', 'CRAM-MD5', 'EXTERNAL', 'PLAIN' , 'LOGIN'); - //if you have problems using DIGEST-MD5 authentication please comment the line above and uncomment the following line - //var $supportedAuthMethods=array( 'CRAM-MD5', 'PLAIN' , 'LOGIN'); - - //var $supportedAuthMethods=array( 'PLAIN' , 'LOGIN'); - - /** - * The auth methods this class support - * @var array - */ - var $supportedSASLAuthMethods=array('DIGEST-MD5', 'CRAM-MD5'); - - /** - * Handles posible referral loops - * @var array - */ + * 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 - * @param string $euser Effective User (if $user=admin, login as $euser) - * @param string $bypassAuth Skip the authentication phase. Useful if the socket - is already open. - * @param boolean $useTLS Use TLS if available - * @param array $options options for stream_context_create() - */ - function Net_Sieve($user = null , $pass = null , $host = 'localhost', $port = 2000, $logintype = '', $euser = '', $debug = false, $bypassAuth = false, $useTLS = true, $options = null) - { - $this->_state = NET_SIEVE_STATE_DISCONNECTED; - $this->_data['user'] = $user; - $this->_data['pass'] = $pass; - $this->_data['host'] = $host; - $this->_data['port'] = $port; + * 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 $options Additional options for + * stream_context_create(). + */ + function Net_Sieve($user = null, $pass = null, $host = 'localhost', + $port = 2000, $logintype = '', $euser = '', $debug = false, + $bypassAuth = false, $useTLS = true, $options = 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->_debug = $debug; - $this->_bypassAuth = $bypassAuth; - $this->_useTLS = $useTLS; - $this->_options = $options; - /* - * Include the Auth_SASL package. If the package is not available, - * we disable the authentication methods that depend upon it. - */ + $this->_data['euser'] = $euser; + $this->_sock = new Net_Socket(); + $this->_debug = $debug; + $this->_bypassAuth = $bypassAuth; + $this->_useTLS = $useTLS; + $this->_options = $options; + + /* Try to include the Auth_SASL package. If the package is not + * available, we disable the authentication methods that depend upon + * it. */ if ((@include_once 'Auth/SASL.php') === false) { - if($this->_debug){ - echo "AUTH_SASL NOT PRESENT!\n"; - } - foreach($this->supportedSASLAuthMethods as $SASLMethod){ - $pos = array_search( $SASLMethod, $this->supportedAuthMethods ); - if($this->_debug){ - echo "DISABLING METHOD $SASLMethod\n"; - } + $this->_debug('Auth_SASL not present'); + foreach ($this->supportedSASLAuthMethods as $SASLMethod) { + $pos = array_search($SASLMethod, $this->supportedAuthMethods); + $this->_debug('Disabling method ' . $SASLMethod); unset($this->supportedAuthMethods[$pos]); } } - if( ($user != null) && ($pass != null) ){ + + if (strlen($user) && strlen($pass)) { $this->_error = $this->_handleConnectAndLogin(); } } /** - * Handles the errors the class can find - * on the server - * - * @access private - * @param mixed $msg Text error message or PEAR error object - * @param integer $code Numeric error code - * @return PEAR_Error - */ - function _raiseError($msg, $code) + * Returns any error that may have been generated in the constructor. + * + * @return boolean|PEAR_Error False if no error, PEAR_Error otherwise. + */ + function getError() { - include_once 'PEAR.php'; - return PEAR::raiseError($msg, $code); + return PEAR::isError($this->_error) ? $this->_error : false; } /** - * Handles connect and login. - * on the server - * - * @access private - * @return mixed Indexed array of scriptnames or PEAR_Error on failure - */ + * 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, $this->_useTLS ))) { + if (PEAR::isError($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'] , $this->_bypassAuth) ) ) { + if ($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; } } @@ -236,11 +282,100 @@ class Net_Sieve } /** - * Returns an indexed array of scripts currently - * on the server - * - * @return mixed Indexed array of scriptnames or PEAR_Error on failure - */ + * 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) + { + 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) + { + 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 = $this->_cmdListScripts())) { @@ -252,37 +387,39 @@ class Net_Sieve } /** - * Returns the active script - * - * @return mixed The active scriptname or PEAR_Error on failure - */ + * Returns the active script. + * + * @return string The active scriptname. + */ function getActive() { if (!empty($this->_active)) { return $this->_active; - - } elseif (is_array($scripts = $this->_cmdListScripts())) { + } + if (is_array($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 mixed true on success, PEAR_Error on failure - */ + * 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 mixed The script on success, PEAR_Error on failure + * 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) { @@ -290,359 +427,337 @@ class Net_Sieve } /** - * Adds a script to the server - * - * @param string $scriptname Name of the script - * @param string $script The script - * @param boolean $makeactive Whether to make this the active script - * @return mixed true on success, PEAR_Error on failure - */ + * 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 $res; - - } elseif ($makeactive) { + } + if ($makeactive) { return $this->_cmdSetActive($scriptname); - - } else { - return true; } + return true; } /** - * Removes a script from the server - * - * @param string $scriptname Name of the script - * @return mixed True on success, PEAR_Error on failure - */ + * 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); } /** - * Returns any error that may have been generated in the - * constructor - * - * @return mixed False if no error, PEAR_Error otherwise - */ - function getError() + * 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, $size) { - return PEAR::isError($this->_error) ? $this->_error : false; + if (NET_SIEVE_STATE_TRANSACTION != $this->_state) { + return PEAR::raiseError('Not currently in TRANSACTION state', 1); + } + if (PEAR::isError($res = $this->_doCmd(sprintf('HAVESPACE "%s" %d', $scriptname, $size)))) { + return $res; + } + return true; } /** - * Handles connecting to the server and checking the - * response is valid. - * - * @access private - * @param string $host Hostname of server - * @param string $port Port of server - * @param array $options List of options to pass to connect - * @param boolean $useTLS Use TLS if available - * @return mixed True on success, PEAR_Error otherwise - */ - function connect($host, $port, $options = null, $useTLS = 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) { - $msg='Not currently in DISCONNECTED state'; - $code=1; - return $this->_raiseError($msg,$code); + if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) { + return PEAR::raiseError('Not currently connected', 7); } + return $this->_capability['extensions']; + } - if (PEAR::isError($res = $this->_sock->connect($host, $port, false, 5, $options))) { - return $res; + /** + * 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 == $this->_state) { + return PEAR::raiseError('Not currently connected', 7); } - if($this->_bypassAuth === false) { - $this->_state = NET_SIEVE_STATE_AUTHORISATION; - if (PEAR::isError($res = $this->_doCmd())) { - return $res; + $extension = trim($this->_toUpper($extension)); + if (is_array($this->_capability['extensions'])) { + foreach ($this->_capability['extensions'] as $ext) { + if ($ext == $extension) { + return true; + } } - } else { - $this->_state = NET_SIEVE_STATE_TRANSACTION; } - // Explicitly ask for the capabilities in case the connection - // is picked up from an existing connection. - if(PEAR::isError($res = $this->_cmdCapability() )) { - $msg='Failed to connect, server said: ' . $res->getMessage(); - $code=2; - return $this->_raiseError($msg,$code); - } + return false; + } - if($useTLS === true) { - // check if we can enable TLS via STARTTLS - if(isset($this->_capability['starttls']) && function_exists('stream_socket_enable_crypto') === true) { - if (PEAR::isError($res = $this->_startTLS())) { - return $res; - } - } + /** + * 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 true; + return $this->_capability['sasl']; } /** - * 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 $bypassAuth Do not perform authentication - * @return mixed True on success, PEAR_Error otherwise - */ - function login($user, $pass, $logintype = null , $euser = '', $bypassAuth = false) + * 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_AUTHORISATION != $this->_state) { - $msg='Not currently in AUTHORISATION state'; - $code=1; - return $this->_raiseError($msg,$code); + if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) { + return PEAR::raiseError('Not currently connected', 7); } - if( $bypassAuth === false ){ - if(PEAR::isError($res=$this->_cmdAuthenticate($user , $pass , $logintype, $euser ) ) ){ - return $res; + $method = trim($this->_toUpper($method)); + if (is_array($this->_capability['sasl'])) { + foreach ($this->_capability['sasl'] as $sasl) { + if ($sasl == $method) { + return true; + } } } - $this->_state = NET_SIEVE_STATE_TRANSACTION; - return true; + + return false; } /** - * Handles the authentication using any known method + * 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 $userMethod == '' then the class chooses the best method (the stronger is the best ) ) - * @param string $euser The effective uid to authenticate as. - * - * @return mixed string or PEAR_Error + * @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 $euser The effective uid to authenticate as. * - * @access private - * @since 1.0 + * @return void */ - function _cmdAuthenticate($uid , $pwd , $userMethod = null , $euser = '' ) + function _cmdAuthenticate($uid, $pwd, $userMethod = null, $euser = '') { - if ( PEAR::isError( $method = $this->_getBestAuthMethod($userMethod) ) ) { + if (PEAR::isError($method = $this->_getBestAuthMethod($userMethod))) { return $method; } switch ($method) { - case 'DIGEST-MD5': - $result = $this->_authDigest_MD5( $uid , $pwd , $euser ); - return $result; - break; - case 'CRAM-MD5': - $result = $this->_authCRAM_MD5( $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 : - $result = new PEAR_Error( "$method is not a supported authentication method" ); - break; - } - - if (PEAR::isError($res = $this->_doCmd() )) { + 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 $user The userid to authenticate as. + * @param string $pass The password to authenticate with. * @param string $euser The effective uid to authenticate as. * - * @return array Returns an array containing the response - * - * @access private - * @since 1.0 + * @return void */ - function _authPLAIN($user, $pass , $euser ) + function _authPLAIN($user, $pass, $euser) { - if ($euser != '') { - $cmd=sprintf('AUTHENTICATE "PLAIN" "%s"', base64_encode($euser . chr(0) . $user . chr(0) . $pass ) ) ; - } else { - $cmd=sprintf('AUTHENTICATE "PLAIN" "%s"', base64_encode( chr(0) . $user . chr(0) . $pass ) ); - } - return $this->_sendCmd( $cmd ) ; + return $this->_sendCmd( + sprintf( + 'AUTHENTICATE "PLAIN" "%s"', + base64_encode($euser . chr(0) . $user . chr(0) . $pass) + ) + ); } /** - * Authenticates the user using the PLAIN method. + * 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 $user The userid to authenticate as. + * @param string $pass The password to authenticate with. * @param string $euser The effective uid to authenticate as. * - * @return array Returns an array containing the response - * - * @access private - * @since 1.0 + * @return void */ - function _authLOGIN($user, $pass , $euser ) + function _authLOGIN($user, $pass, $euser) { - $this->_sendCmd('AUTHENTICATE "LOGIN"'); - $this->_doCmd(sprintf('"%s"', base64_encode($user))); - $this->_doCmd(sprintf('"%s"', base64_encode($pass))); + if (PEAR::isError($result = $this->_sendCmd('AUTHENTICATE "LOGIN"'))) { + return $result; + } + if (PEAR::isError($result = $this->_doCmd('"' . base64_encode($user) . '"'))) { + return $result; + } + return $this->_doCmd('"' . base64_encode($pass) . '"'); } /** * Authenticates the user using the CRAM-MD5 method. * - * @param string $uid The userid to authenticate as. - * @param string $pwd The password to authenticate with. + * @param string $user The userid to authenticate as. + * @param string $pass The password to authenticate with. * @param string $euser The effective uid to authenticate as. * - * @return array Returns an array containing the response - * - * @access private - * @since 1.0 + * @return void */ - function _authCRAM_MD5($uid, $pwd, $euser) + function _authCRAMMD5($user, $pass, $euser) { - if ( PEAR::isError( $challenge = $this->_doCmd( 'AUTHENTICATE "CRAM-MD5"' ) ) ) { - $this->_error=$challenge; + if (PEAR::isError($challenge = $this->_doCmd('AUTHENTICATE "CRAM-MD5"', true))) { return $challenge; } - $challenge=trim($challenge); - $challenge = base64_decode( trim($challenge) ); - $cram = &Auth_SASL::factory('crammd5'); - if ( PEAR::isError($resp=$cram->getResponse( $uid , $pwd , $challenge ) ) ) { - $this->_error=$resp; - return $resp; - } - $auth_str = base64_encode( $resp ); - if ( PEAR::isError($error = $this->_sendStringResponse( $auth_str ) ) ) { - $this->_error=$error; - return $error; + + $challenge = base64_decode(trim($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 $uid The userid to authenticate as. - * @param string $pwd The password to authenticate with. + * @param string $user The userid to authenticate as. + * @param string $pass The password to authenticate with. * @param string $euser The effective uid to authenticate as. * - * @return array Returns an array containing the response - * - * @access private - * @since 1.0 + * @return void */ - function _authDigest_MD5($uid, $pwd, $euser) + function _authDigestMD5($user, $pass, $euser) { - if ( PEAR::isError( $challenge = $this->_doCmd('AUTHENTICATE "DIGEST-MD5"') ) ) { - $this->_error= $challenge; + if (PEAR::isError($challenge = $this->_doCmd('AUTHENTICATE "DIGEST-MD5"', true))) { return $challenge; } - $challenge = base64_decode( $challenge ); - $digest = &Auth_SASL::factory('digestmd5'); - if(PEAR::isError($param=$digest->getResponse($uid, $pwd, $challenge, "localhost", "sieve" , $euser) )) { - return $param; + $challenge = base64_decode(trim($challenge)); + $digest = Auth_SASL::factory('digestmd5'); + // @todo Really 'localhost'? + if (PEAR::isError($response = $digest->getResponse($user, $pass, $challenge, 'localhost', 'sieve', $euser))) { + return $response; } - $auth_str = base64_encode($param); - if ( PEAR::isError($error = $this->_sendStringResponse( $auth_str ) ) ) { - $this->_error=$error; - return $error; + if (PEAR::isError($result = $this->_sendStringResponse(base64_encode($param)))) { + return $result; } - - if ( PEAR::isError( $challenge = $this->_doCmd() ) ) { - $this->_error=$challenge ; - return $challenge ; + if (PEAR::isError($result = $this->_doCmd())) { + return $result; } - - if( strtoupper(substr($challenge,0,2))== 'OK' ){ - return true; + 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($error = $this->_sendStringResponse( '' ) ) ) { - $this->_error=$error; - return $error; + /* We don't use the protocol's third step because SIEVE doesn't allow + * subsequent authentication, so we just silently ignore it. */ + if (PEAR::isError($result = $this->_sendStringResponse(''))) { + return $result; } - if (PEAR::isError($res = $this->_doCmd() )) { - return $res; - } + 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 $user The userid to authenticate as. + * @param string $pass The password to authenticate with. * @param string $euser The effective uid to authenticate as. * - * @return array Returns an array containing the response + * @return void * - * @access private * @since 1.1.7 */ function _authEXTERNAL($user, $pass, $euser) { - if ($euser != '') { - $cmd=sprintf('AUTHENTICATE "EXTERNAL" "%s"', base64_encode($euser) ) ; - } else { - $cmd=sprintf('AUTHENTICATE "EXTERNAL" "%s"', base64_encode($user) ); - } - return $this->_sendCmd( $cmd ) ; + $cmd = sprintf( + 'AUTHENTICATE "EXTERNAL" "%s"', + base64_encode(strlen($euser) ? $euser : $user) + ); + return $this->_sendCmd($cmd); } /** - * Removes a script from the server - * - * @access private - * @param string $scriptname Name of the script to delete - * @return mixed True on success, PEAR_Error otherwise - */ + * 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) { - $msg='Not currently in AUTHORISATION state'; - $code=1; - return $this->_raiseError($msg,$code); + return PEAR::raiseError('Not currently in AUTHORISATION state', 1); } - if (PEAR::isError($res = $this->_doCmd(sprintf('DELETESCRIPT "%s"', $scriptname) ) )) { + if (PEAR::isError($res = $this->_doCmd(sprintf('DELETESCRIPT "%s"', $scriptname)))) { return $res; } return true; } /** - * Retrieves the contents of the named script - * - * @access private - * @param string $scriptname Name of the script to retrieve - * @return mixed The script if successful, PEAR_Error otherwise - */ + * 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) { - $msg='Not currently in AUTHORISATION state'; - $code=1; - return $this->_raiseError($msg,$code); + return PEAR::raiseError('Not currently in AUTHORISATION state', 1); } - if (PEAR::isError($res = $this->_doCmd(sprintf('GETSCRIPT "%s"', $scriptname) ) ) ) { + if (PEAR::isError($res = $this->_doCmd(sprintf('GETSCRIPT "%s"', $scriptname)))) { return $res; } @@ -650,53 +765,45 @@ class Net_Sieve } /** - * Sets the ACTIVE script, ie the one that gets run on new mail - * by the server - * - * @access private - * @param string $scriptname The name of the script to mark as active - * @return mixed True on success, PEAR_Error otherwise + * 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) { - $msg='Not currently in AUTHORISATION state'; - $code=1; - return $this->_raiseError($msg,$code); + return PEAR::raiseError('Not currently in AUTHORISATION state', 1); } - - if (PEAR::isError($res = $this->_doCmd(sprintf('SETACTIVE "%s"', $scriptname) ) ) ) { + if (PEAR::isError($res = $this->_doCmd(sprintf('SETACTIVE "%s"', $scriptname)))) { return $res; } - $this->_activeScript = $scriptname; return true; } /** - * Sends the LISTSCRIPTS command - * - * @access private - * @return mixed Two item array of scripts, and active script on success, - * PEAR_Error otherwise. - */ + * 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) { - $msg='Not currently in AUTHORISATION state'; - $code=1; - return $this->_raiseError($msg,$code); + return PEAR::raiseError('Not currently in AUTHORISATION state', 1); } - $scripts = array(); - $activescript = null; - if (PEAR::isError($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)) { $scripts[] = $matches[1]; @@ -710,25 +817,22 @@ class Net_Sieve } /** - * Sends the PUTSCRIPT command to add a script to - * the server. - * - * @access private - * @param string $scriptname Name of the new script - * @param string $scriptdata The new script - * @return mixed True on success, PEAR_Error otherwise - */ + * 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) { - $msg='Not currently in TRANSACTION state'; - $code=1; - return $this->_raiseError($msg,$code); + return PEAR::raiseError('Not currently in AUTHORISATION state', 1); } $stringLength = $this->_getLineLength($scriptdata); - if (PEAR::isError($res = $this->_doCmd(sprintf("PUTSCRIPT \"%s\" {%d+}\r\n%s", $scriptname, $stringLength, $scriptdata) ))) { + if (PEAR::isError($res = $this->_doCmd(sprintf("PUTSCRIPT \"%s\" {%d+}\r\n%s", $scriptname, $stringLength, $scriptdata)))) { return $res; } @@ -736,22 +840,20 @@ class Net_Sieve } /** - * Sends the LOGOUT command and terminates the connection - * - * @access private - * @param boolean $sendLogoutCMD True to send LOGOUT command before disconnecting - * @return mixed True on success, PEAR_Error otherwise - */ - function _cmdLogout($sendLogoutCMD=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) { - $msg='Not currently connected'; - $code=1; - return $this->_raiseError($msg,$code); - //return PEAR::raiseError('Not currently connected'); + if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) { + return PEAR::raiseError('Not currently connected', 1); } - if($sendLogoutCMD){ + if ($sendLogoutCMD) { if (PEAR::isError($res = $this->_doCmd('LOGOUT'))) { return $res; } @@ -759,23 +861,20 @@ class Net_Sieve $this->_sock->disconnect(); $this->_state = NET_SIEVE_STATE_DISCONNECTED; + return true; } /** - * Sends the CAPABILITY command - * - * @access private - * @return mixed True on success, PEAR_Error otherwise - */ + * Sends the CAPABILITY command + * + * @return boolean True on success, PEAR_Error otherwise. + */ function _cmdCapability() { - if (NET_SIEVE_STATE_DISCONNECTED === $this->_state) { - $msg='Not currently connected'; - $code=1; - return $this->_raiseError($msg,$code); + if (NET_SIEVE_STATE_DISCONNECTED == $this->_state) { + return PEAR::raiseError('Not currently connected', 1); } - if (PEAR::isError($res = $this->_doCmd('CAPABILITY'))) { return $res; } @@ -784,405 +883,332 @@ class Net_Sieve } /** - * 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 $size The size of the script - * @return mixed True on success, PEAR_Error otherwise - */ - function haveSpace($scriptname,$size) - { - if (NET_SIEVE_STATE_TRANSACTION != $this->_state) { - $msg='Not currently in TRANSACTION state'; - $code=1; - return $this->_raiseError($msg,$code); - } - - if (PEAR::isError($res = $this->_doCmd(sprintf('HAVESPACE "%s" %d', $scriptname, $size) ) ) ) { - return $res; - } - - return true; - } - - /** - * Parses the response from the capability command. Stores - * the result in $this->_capability - * - * @access private - * @param string $data The response from the capability command - */ + * 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(); + // Clear the cached capabilities. + $this->_capability = array('sasl' => array(), + 'extensions' => array()); - $data = preg_split('/\r?\n/', $data, -1, PREG_SPLIT_NO_EMPTY); + $data = preg_split('/\r?\n/', $this->_toUpper($data), -1, PREG_SPLIT_NO_EMPTY); for ($i = 0; $i < count($data); $i++) { - if (preg_match('/^"([a-z]+)"( "(.*)")?$/i', $data[$i], $matches)) { - switch (strtolower($matches[1])) { - case 'implementation': - $this->_capability['implementation'] = $matches[3]; - break; + if (!preg_match('/^"([A-Z]+)"( "(.*)")?$/', $data[$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 'SASL': + $this->_capability['sasl'] = preg_split('/\s+/', $matches[3]); + break; - case 'sieve': - $this->_capability['extensions'] = preg_split('/\s+/', $matches[3]); - break; + case 'SIEVE': + $this->_capability['extensions'] = preg_split('/\s+/', $matches[3]); + break; - case 'starttls': - $this->_capability['starttls'] = true; - break; - } + case 'STARTTLS': + $this->_capability['starttls'] = true; + break; } } } /** - * Sends a command to the server - * - * @access private - * @param string $cmd The command to send - */ + * 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 new PEAR_Error( 'Failed to write to socket: (connection lost!) ' ); + return PEAR::raiseError('Failed to write to socket: connection lost'); } - if ( PEAR::isError( $error = $this->_sock->write( $cmd . "\r\n" ) ) ) { - return new PEAR_Error( 'Failed to write to socket: ' . $error->getMessage() ); - } - - if( $this->_debug ){ - // C: means this data was sent by the client (this class) - echo "C:$cmd\n"; + if (PEAR::isError($error = $this->_sock->write($cmd . "\r\n"))) { + return PEAR::raiseError( + 'Failed to write to socket: ' . $error->getMessage() + ); } - return true; + $this->_debug("C: $cmd"); } /** - * Sends a string response to the server - * - * @access private - * @param string $cmd The command to send - */ + * Sends a string response to the server. + * + * @param string $str The string to send. + * + * @return void + */ function _sendStringResponse($str) { - $response='{' . $this->_getLineLength($str) . "+}\r\n" . $str ; - return $this->_sendCmd($response); + return $this->_sendCmd('{' . $this->_getLineLength($str) . "+}\r\n" . $str); } + /** + * Receives a single line from the server. + * + * @return string The server response line. + */ function _recvLn() { - $lastline=''; - if (PEAR::isError( $lastline = $this->_sock->gets( 8192 ) ) ) { - return new PEAR_Error( 'Failed to write to socket: ' . $lastline->getMessage() ); - } - $lastline=rtrim($lastline); - if($this->_debug){ - // S: means this data was sent by the IMAP Server - echo "S:$lastline\n" ; + if (PEAR::isError($lastline = $this->_sock->gets(8192))) { + return PEAR::raiseError( + 'Failed to read from socket: ' . $lastline->getMessage() + ); } - if( $lastline === '' ) { - return new PEAR_Error( 'Failed to receive from the socket' ); + $lastline = rtrim($lastline); + $this->_debug("S: $lastline"); + + if ($lastline === '') { + return PEAR::raiseError('Failed to read from socket'); } return $lastline; } /** - * Send a command and retrieves a response from the server. - * - * - * @access private - * @param string $cmd The command to send - * @return mixed Reponse string if an OK response, PEAR_Error if a NO response - */ - function _doCmd($cmd = '' ) + * 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 < $this->_maxReferralCount ){ - - if($cmd != '' ){ - if(PEAR::isError($error = $this->_sendCmd($cmd) )) { + $referralCount = 0; + while ($referralCount < $this->_maxReferralCount) { + if (strlen($cmd)) { + if (PEAR::isError($error = $this->_sendCmd($cmd))) { return $error; } } - $response = ''; + $response = ''; while (true) { - if(PEAR::isError( $line=$this->_recvLn() )){ - return $line; + if (PEAR::isError($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('/^no {([0-9]+)\+?}/i', $line, $matches)) { + $line .= str_replace( + "\r\n", ' ', $this->_sock->read($matches[1] + 2) + ); + $this->_debug("S: $line"); } - if ('ok' === strtolower(substr($line, 0, 2))) { - $response .= $line; - return rtrim($response); - - } elseif ('no' === strtolower(substr($line, 0, 2))) { - // Check for string literal error message - if (preg_match('/^no {([0-9]+)\+?}/i', $line, $matches)) { - $line .= str_replace("\r\n", ' ', $this->_sock->read($matches[1] + 2 )); - if($this->_debug){ - echo "S:$line\n"; - } - } - $msg=trim($response . substr($line, 2)); - $code=3; - return $this->_raiseError($msg,$code); - } elseif ('bye' === strtolower(substr($line, 0, 3))) { - - if(PEAR::isError($error = $this->disconnect(false) ) ){ - $msg="Can't handle bye, The error was= " . $error->getMessage() ; - $code=4; - return $this->_raiseError($msg,$code); - } - //if (preg_match('/^bye \(referral "([^"]+)/i', $line, $matches)) { - if (preg_match('/^bye \(referral "(sieve:\/\/)?([^"]+)/i', $line, $matches)) { - // Check for referral, then follow it. Otherwise, carp an error. - // 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() ) ){ - $msg="Can't follow referral to " . $this->_data['host'] . ", The error was= " . $error->getMessage() ; - $code=5; - return $this->_raiseError($msg,$code); - } - break; - // Retry the command - if(PEAR::isError($error = $this->_sendCmd($cmd) )) { - return $error; - } - continue; - } - $msg=trim($response . $line); - $code=6; - return $this->_raiseError($msg,$code); - } elseif (preg_match('/^{([0-9]+)\+?}/i', $line, $matches)) { - // Matches String Responses. - //$line = str_replace("\r\n", ' ', $this->_sock->read($matches[1] + 2 )); - $str_size = $matches[1] + 2; - $line = ''; - $line_length = 0; - while ($line_length < $str_size) { - $line .= $this->_sock->read($str_size - $line_length); - $line_length = $this->_getLineLength($line); - } - if($this->_debug){ - echo "S:$line\n"; - } - if($this->_state != NET_SIEVE_STATE_AUTHORISATION) { - // receive the pending OK only if we aren't authenticating - // since string responses during authentication don't need an - // OK. - $this->_recvLn(); + return PEAR::raiseError(trim($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 + ); } - return $line; + break; } - $response .= $line . "\r\n"; - $referralCount++; + return PEAR::raiseError(trim($response . $line), 6); } - } - $msg="Max referral count reached ($referralCount times) Cyrus murder loop error?"; - $code=7; - return $this->_raiseError($msg,$code); - } - /** - * Sets the debug state - * - * @param boolean $debug - * @return void - */ - function setDebug($debug = true) - { - $this->_debug = $debug; - } + if (preg_match('/^{([0-9]+)\+?}/i', $line, $matches)) { + // Matches String Responses. + $str_size = $matches[1] + 2; + $line = ''; + $line_length = 0; + while ($line_length < $str_size) { + $line .= $this->_sock->read($str_size - $line_length); + $line_length = $this->_getLineLength($line); + } + $this->_debug("S: $line"); - /** - * Disconnect from the Sieve server - * - * @param string $scriptname The name of the script to be set as active - * @return mixed true on success, PEAR_Error on failure - */ - function disconnect($sendLogoutCMD=true) - { - return $this->_cmdLogout($sendLogoutCMD); + 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 (' . $referralCount . ') reached. Cyrus murder loop error?', 7); } /** * Returns the name of the best authentication method that the server * has advertised. * - * @param string if !=null,authenticate with this method ($userMethod). + * @param string $userMethod Only consider this method as available. * - * @return mixed Returns a string containing the name of the best - * supported authentication method or a PEAR_Error object - * if a failure condition is encountered. - * @access private - * @since 1.0 + * @return string The name of the best supported authentication method or + * a PEAR_Error object on failure. */ function _getBestAuthMethod($userMethod = null) { - if( isset($this->_capability['sasl']) ){ - $serverMethods=$this->_capability['sasl']; - }else{ - // if the server don't send an sasl capability fallback to login auth - //return 'LOGIN'; - return new PEAR_Error("This server don't support any Auth methods SASL problem?"); - } - - if($userMethod != null ){ - $methods = array(); - $methods[] = $userMethod; - }else{ - - $methods = $this->supportedAuthMethods; - } - if( ($methods != null) && ($serverMethods != null)){ - foreach ( $methods as $method ) { - if ( in_array( $method , $serverMethods ) ) { - return $method; - } - } - $serverMethods=implode(',' , $serverMethods ); - $myMethods=implode(',' ,$this->supportedAuthMethods); - return new PEAR_Error("$method NOT supported authentication method!. This server " . - "supports these methods= $serverMethods, but I support $myMethods"); - }else{ - return new PEAR_Error("This server don't support any Auth methods"); - } - } - - /** - * Return the list of extensions the server supports - * - * @return mixed array on success, PEAR_Error on failure - */ - function getExtensions() - { - if (NET_SIEVE_STATE_DISCONNECTED === $this->_state) { - $msg='Not currently connected'; - $code=7; - return $this->_raiseError($msg,$code); - } - - return $this->_capability['extensions']; - } - - /** - * Return true if tyhe server has that extension - * - * @param string the extension to compare - * @return mixed array on success, PEAR_Error on failure - */ - function hasExtension($extension) - { - if (NET_SIEVE_STATE_DISCONNECTED === $this->_state) { - $msg='Not currently connected'; - $code=7; - return $this->_raiseError($msg,$code); + if (!isset($this->_capability['sasl'])) { + return PEAR::raiseError('This server doesn\'t support any authentication methods. SASL problem?'); } - if(is_array($this->_capability['extensions'] ) ){ - foreach( $this->_capability['extensions'] as $ext){ - if( trim( strtolower( $ext ) ) === trim( strtolower( $extension ) ) ) - return true; - } - } - return false; - } + $serverMethods = $this->_capability['sasl']; - /** - * Return the list of auth methods the server supports - * - * @return mixed array on success, PEAR_Error on failure - */ - function getAuthMechs() - { - if (NET_SIEVE_STATE_DISCONNECTED === $this->_state) { - $msg='Not currently connected'; - $code=7; - return $this->_raiseError($msg,$code); - } - if(!isset($this->_capability['sasl']) ){ - $this->_capability['sasl']=array(); + if ($userMethod) { + $methods = array($userMethod); + } else { + $methods = $this->supportedAuthMethods; } - return $this->_capability['sasl']; - } - /** - * Return true if the server has that extension - * - * @param string the extension to compare - * @return mixed array on success, PEAR_Error on failure - */ - function hasAuthMech($method) - { - if (NET_SIEVE_STATE_DISCONNECTED === $this->_state) { - $msg='Not currently connected'; - $code=7; - return $this->_raiseError($msg,$code); - //return PEAR::raiseError('Not currently connected'); + if (!$methods || !$serverMethods) { + return PEAR::raiseError( + 'This server doesn\'t support any authentication methods.' + ); } - if(is_array($this->_capability['sasl'] ) ){ - foreach( $this->_capability['sasl'] as $ext){ - if( trim( strtolower( $ext ) ) === trim( strtolower( $method ) ) ) - return true; + foreach ($methods as $method) { + if (in_array($method, $serverMethods)) { + return $method; } } - return false; + + return PEAR::raiseError( + 'No supported authentication method found. The server supports these methods: ' + . implode(',', $serverMethods) + . ', but we only support: ' + . implode(',', $this->supportedAuthMethods) + ); } /** - * Return true if the TLS negotiation was successful - * - * @access private - * @return mixed true on success, PEAR_Error on failure - */ + * Starts a TLS connection. + * + * @return boolean True on success, PEAR_Error on failure. + */ function _startTLS() { - if (PEAR::isError($res = $this->_doCmd("STARTTLS"))) { + if (PEAR::isError($res = $this->_doCmd('STARTTLS'))) { return $res; } - if(stream_socket_enable_crypto($this->_sock->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT) == false) { - $msg='Failed to establish TLS connection'; - $code=2; - return $this->_raiseError($msg,$code); + if (!stream_socket_enable_crypto($this->_sock->fp, true, STREAM_CRYPTO_METHOD_TLS_CLIENT)) { + return PEAR::raiseError('Failed to establish TLS connection', 2); } - if($this->_debug === true) { - echo "STARTTLS Negotiation Successful\n"; - } + $this->_debug('STARTTLS negotiation successful'); // The server should be sending a CAPABILITY response after // negotiating TLS. Read it, and ignore if it doesn't. $this->_doCmd(); - // RFC says we need to query the server capabilities again now that - // we are under encryption - if(PEAR::isError($res = $this->_cmdCapability() )) { - $msg='Failed to connect, server said: ' . $res->getMessage(); - $code=2; - return $this->_raiseError($msg,$code); + // RFC says we need to query the server capabilities again now that we + // are under encryption. + if (PEAR::isError($res = $this->_cmdCapability())) { + return PEAR::raiseError( + 'Failed to connect, server said: ' . $res->getMessage(), 2 + ); } return true; } - function _getLineLength($string) { - if (extension_loaded('mbstring') || @dl(PHP_SHLIB_PREFIX.'mbstring.'.PHP_SHLIB_SUFFIX)) { - return mb_strlen($string,'latin1'); + /** + * 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') + || @dl(PHP_SHLIB_PREFIX . 'mbstring.' . PHP_SHLIB_SUFFIX) + ) { + return mb_strlen($string, 'latin1'); } else { - return strlen($string); + 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; + } + + /** + * 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"; + } } } } -?> |