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Diffstat (limited to 'plugins/managesieve/lib/rcube_sieve.php')
-rw-r--r--plugins/managesieve/lib/rcube_sieve.php378
1 files changed, 378 insertions, 0 deletions
diff --git a/plugins/managesieve/lib/rcube_sieve.php b/plugins/managesieve/lib/rcube_sieve.php
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+++ b/plugins/managesieve/lib/rcube_sieve.php
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+<?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));
+ }
+}