Copy plugins to release branch

1 files changed, 990 insertions, 0 deletions

diff --git a/plugins/managesieve/lib/rcube_sieve.php b/plugins/managesieve/lib/rcube_sieve.php
new file mode 100644
index 000000000..ba43f1093
--- /dev/null
+++ b/plugins/managesieve/lib/rcube_sieve.php
@@ -0,0 +1,990 @@
+<?php
+
+/*
+  Classes for managesieve operations (using PEAR::Net_Sieve)
+
+  Author: Aleksander Machniak <alec@alec.pl>
+
+  $Id$
+
+*/
+
+//  Sieve Language Basics: http://www.ietf.org/rfc/rfc5228.txt
+
+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 $disabled;              // array of disabled extensions
+
+
+    /**
+     * Object constructor
+     *
+     * @param string  Username (for managesieve login)
+     * @param string  Password (for managesieve login)
+     * @param string  Managesieve server hostname/address
+     * @param string  Managesieve server port number
+     * @param string  Managesieve authentication method 
+     * @param boolean Enable/disable TLS use
+     * @param array   Disabled extensions
+     * @param boolean Enable/disable debugging
+     * @param string  Proxy authentication identifier
+     * @param string  Proxy authentication password
+     */
+    public function __construct($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->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->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);
+
+            $this->list = $this->sieve->listScripts();
+
+            if (PEAR::isError($this->list))
+                return $this->_set_error(SIEVE_ERROR_OTHER);
+        }
+
+        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)
+    {
+        // try to parse from Roundcube format
+        $script = new rcube_sieve_script($txt, $this->disabled);
+
+        // ... else try to import from different formats
+        if (empty($script->content)) {
+            $script = $this->_import_rules($txt);
+            $script = new rcube_sieve_script($script, $this->disabled);
+        }
+
+        // replace all elsif with if+stop, we support only ifs
+        foreach ($script->content as $idx => $rule) {
+            if (!isset($script->content[$idx+1])
+                || preg_match('/^else|elsif$/', $script->content[$idx+1]['type'])) {
+                // 'stop' not found?
+                if (!preg_match('/^(stop|vacation)$/', $rule['actions'][count($rule['actions'])-1]['type'])) {
+                    $script->content[$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, $content);
+    }
+
+    private function _import_rules($script)
+    {
+        $i = 0;
+        $name = array();
+
+        // Squirrelmail (Avelsieve)
+        if ($tokens = preg_split('/(#START_SIEVE_RULE.*END_SIEVE_RULE)\r?\n/', $script, -1, PREG_SPLIT_DELIM_CAPTURE)) {
+            foreach($tokens as $token) {
+                if (preg_match('/^#START_SIEVE_RULE.*/', $token, $matches)) {
+                    $name[$i] = "unnamed rule ".($i+1);
+                    $content .= "# rule:[".$name[$i]."]\n";
+                }
+                elseif (isset($name[$i])) {
+                    // This preg_replace is added because I've found some Avelsieve scripts
+                    // with rules containing "if" here. I'm not sure it was working
+                    // before without this or not.
+                    $token = preg_replace('/^if\s+/', '', trim($token));
+                    $content .= "if $token\n";
+                    $i++;
+                }
+            }
+        }
+        // Horde (INGO)
+        else if ($tokens = preg_split('/(# .+)\r?\n/i', $script, -1, PREG_SPLIT_DELIM_CAPTURE)) {
+            foreach($tokens as $token) {
+                if (preg_match('/^# (.+)/i', $token, $matches)) {
+                    $name[$i] = $matches[1];
+                    $content .= "# rule:[" . $name[$i] . "]\n";
+                }
+                elseif (isset($name[$i])) {
+                    $token = str_replace(":comparator \"i;ascii-casemap\" ", "", $token);
+                    $content .= $token . "\n";
+                    $i++;
+                }
+            }
+        }
+
+        return $content;
+    }
+
+    private function _set_error($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));
+    }
+}
+
+
+class rcube_sieve_script
+{
+    public $content = array();      // script rules array
+
+    private $supported = array(     // extensions supported by class
+        'fileinto',
+        'reject',
+        'ereject',
+        'copy',                     // RFC3894
+        'vacation',                 // RFC5230
+        'relational',               // RFC3431
+    // TODO: (most wanted first) body, imapflags, notify, regex
+    );
+
+    /**
+     * Object constructor
+     *
+     * @param  string  Script's text content
+     * @param  array   Disabled extensions
+     */
+    public function __construct($script, $disabled=NULL)
+    {
+        if (!empty($disabled))
+            foreach ($disabled as $ext)
+                if (($idx = array_search($ext, $this->supported)) !== false)
+                    unset($this->supported[$idx]);
+
+        $this->content = $this->_parse_text($script);
+    }
+
+    /**
+     * Adds script contents as text to the script array (at the end)
+     *
+     * @param    string    Text script contents
+     */
+    public function add_text($script)
+    {
+        $content = $this->_parse_text($script);
+        $result = false;
+
+        // check existsing script rules names
+        foreach ($this->content as $idx => $elem) {
+            $names[$elem['name']] = $idx;
+        }
+
+        foreach ($content as $elem) {
+            if (!isset($names[$elem['name']])) {
+                array_push($this->content, $elem);
+                $result = true;
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Adds rule to the script (at the end)
+     *
+     * @param string Rule name
+     * @param array  Rule content (as array)
+     */
+    public function add_rule($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;
+    }
+
+    /**
+     * Returns script as text
+     */
+    public function as_text()
+    {
+        $script = '';
+        $exts = array();
+        $idx = 0;
+
+        // rules
+        foreach ($this->content as $rule) {
+            $extension = '';
+            $tests = array();
+            $i = 0;
+
+            // header
+            $script .= '# rule:[' . $rule['name'] . "]\n";
+
+            // constraints expressions
+            foreach ($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'] ? 'not true' : 'true');
+                    break;
+                case 'exists':
+                    $tests[$i] .= ($test['not'] ? 'not ' : '');
+                    if (is_array($test['arg']))
+                        $tests[$i] .= 'exists ["' . implode('", "', $this->_escape_string($test['arg'])) . '"]';
+                    else
+                        $tests[$i] .= 'exists "' . $this->_escape_string($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
+                        $tests[$i] .= 'header :' . $test['type'];
+                    
+                    if (is_array($test['arg1']))
+                        $tests[$i] .= ' ["' . implode('", "', $this->_escape_string($test['arg1'])) . '"]';
+                    else
+                        $tests[$i] .= ' "' . $this->_escape_string($test['arg1']) . '"';
+
+                    if (is_array($test['arg2']))
+                        $tests[$i] .= ' ["' . implode('", "', $this->_escape_string($test['arg2'])) . '"]';
+                    else
+                        $tests[$i] .= ' "' . $this->_escape_string($test['arg2']) . '"';
+
+                    break;
+                }
+                $i++;
+            }
+
+//          $script .= ($idx>0 ? 'els' : '').($rule['join'] ? 'if allof (' : 'if anyof (');
+            // disabled rule: if false #....
+            $script .= 'if' . ($rule['disabled'] ? ' false #' : '');
+            $script .= $rule['join'] ? ' allof (' : ' anyof (';
+            if (sizeof($tests) > 1)
+                $script .= implode(", ", $tests);
+            else if (sizeof($tests))
+                $script .= $tests[0];
+            else
+                $script .= 'true';
+            $script .= ")\n{\n";
+
+            // action(s)
+            foreach ($rule['actions'] as $action) {
+                switch ($action['type']) {
+                case 'fileinto':
+                    array_push($exts, 'fileinto');
+                    $script .= "\tfileinto ";
+                    if ($action['copy']) {
+                        $script .= ':copy ';
+                        array_push($exts, 'copy');
+                    }
+                    $script .= "\"" . $this->_escape_string($action['target']) . "\";\n";
+                    break;
+                case 'redirect':
+                    $script .= "\tredirect ";
+                    if ($action['copy']) {
+                        $script .= ':copy ';
+                        array_push($exts, 'copy');
+                    }
+                    $script .= "\"" . $this->_escape_string($action['target']) . "\";\n";
+                    break;
+                case 'reject':
+                case 'ereject':
+                    array_push($exts, $action['type']);
+                    if (strpos($action['target'], "\n")!==false)
+                        $script .= "\t".$action['type']." text:\n" . $action['target'] . "\n.\n;\n";
+                    else
+                        $script .= "\t".$action['type']." \"" . $this->_escape_string($action['target']) . "\";\n";
+                    break;
+                case 'keep':
+                case 'discard':
+                case 'stop':
+                    $script .= "\t" . $action['type'] .";\n";
+                    break;
+                case 'vacation':
+                    array_push($exts, 'vacation');
+                    $script .= "\tvacation";
+                    if ($action['days'])
+                        $script .= " :days " . $action['days'];
+                    if ($action['addresses'])
+                        $script .= " :addresses " . $this->_print_list($action['addresses']);
+                    if ($action['subject'])
+                        $script .= " :subject \"" . $this->_escape_string($action['subject']) . "\"";
+                    if ($action['handle'])
+                        $script .= " :handle \"" . $this->_escape_string($action['handle']) . "\"";
+                    if ($action['from'])
+                        $script .= " :from \"" . $this->_escape_string($action['from']) . "\"";
+                    if ($action['mime'])
+                        $script .= " :mime";
+                    if (strpos($action['reason'], "\n")!==false)
+                        $script .= " text:\n" . $action['reason'] . "\n.\n;\n";
+                    else
+                        $script .= " \"" . $this->_escape_string($action['reason']) . "\";\n";
+                    break;
+                }
+            }
+
+            $script .= "}\n";
+            $idx++;
+        }
+
+        // requires
+        if (!empty($exts))
+            $script = 'require ["' . implode('","', array_unique($exts)) . "\"];\n" . $script;
+
+        return $script;
+    }
+
+    /**
+     * 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)
+    {
+        $i = 0;
+        $content = array();
+
+        // remove C comments
+        $script = preg_replace('|/\*.*?\*/|sm', '', $script);
+
+        // tokenize rules
+        if ($tokens = preg_split('/(# rule:\[.*\])\r?\n/', $script, -1, PREG_SPLIT_DELIM_CAPTURE)) {
+            foreach($tokens as $token) {
+                if (preg_match('/^# rule:\[(.*)\]/', $token, $matches)) {
+                    $content[$i]['name'] = $matches[1];
+                }
+                else if (isset($content[$i]['name']) && sizeof($content[$i]) == 1) {
+                    if ($rule = $this->_tokenize_rule($token)) {
+                        $content[$i] = array_merge($content[$i], $rule);
+                        $i++;
+                    }
+                    else // unknown rule format
+                        unset($content[$i]);
+                }
+            }
+        }
+
+        return $content;
+    }
+
+    /**
+     * Convert text script fragment to rule object
+     *
+     * @param string Text rule
+     */
+    private function _tokenize_rule($content)
+    {
+        $result = NULL;
+
+        if (preg_match('/^(if|elsif|else)\s+((true|false|not\s+true|allof|anyof|exists|header|not|size)(.*))\s+\{(.*)\}$/sm',
+            trim($content), $matches)) {
+
+            $tests = trim($matches[2]);
+
+            // disabled rule (false + comment): if false #.....
+            if ($matches[3] == 'false') {
+                $tests = preg_replace('/^false\s+#\s+/', '', $tests);
+                $disabled = true;
+            }
+            else
+                $disabled = false;
+
+            list($tests, $join) = $this->_parse_tests($tests);
+            $actions = $this->_parse_actions(trim($matches[5]));
+
+            if ($tests && $actions)
+                $result = array(
+                    'type'     => $matches[1],
+                    'tests'    => $tests,
+                    'actions'  => $actions,
+                    'join'     => $join,
+                    'disabled' => $disabled,
+            );
+        }
+
+        return $result;
+    }
+
+    /**
+     * Parse body of actions section
+     *
+     * @param string Text body
+     * @return array Array of parsed action type/target pairs
+     */
+    private function _parse_actions($content)
+    {
+        $result = NULL;
+
+        // supported actions
+        $patterns[] = '^\s*discard;';
+        $patterns[] = '^\s*keep;';
+        $patterns[] = '^\s*stop;';
+        $patterns[] = '^\s*redirect\s+(.*?[^\\\]);';
+        if (in_array('fileinto', $this->supported))
+            $patterns[] = '^\s*fileinto\s+(.*?[^\\\]);';
+        if (in_array('reject', $this->supported)) {
+            $patterns[] = '^\s*reject\s+text:(.*)\n\.\n;';
+            $patterns[] = '^\s*reject\s+(.*?[^\\\]);';
+            $patterns[] = '^\s*ereject\s+text:(.*)\n\.\n;';
+            $patterns[] = '^\s*ereject\s+(.*?[^\\\]);';
+        }
+        if (in_array('vacation', $this->supported))
+            $patterns[] = '^\s*vacation\s+(.*?[^\\\]);';
+
+        $pattern = '/(' . implode('\s*$)|(', $patterns) . '$\s*)/ms';
+
+        // parse actions body
+        if (preg_match_all($pattern, $content, $mm, PREG_SET_ORDER)) {
+            foreach ($mm as $m) {
+                $content = trim($m[0]);
+
+                if(preg_match('/^(discard|keep|stop)/', $content, $matches)) {
+                    $result[] = array('type' => $matches[1]);
+                }
+                else if(preg_match('/^fileinto/', $content)) {
+                    $target = $m[sizeof($m)-1];
+                    $copy = false;
+                    if (preg_match('/^:copy\s+/', $target)) {
+                        $target = preg_replace('/^:copy\s+/', '', $target);
+                        $copy = true;
+                    }
+                    $result[] = array('type' => 'fileinto', 'copy' => $copy,
+                        'target' => $this->_parse_string($target));
+                }
+                else if(preg_match('/^redirect/', $content)) {
+                    $target = $m[sizeof($m)-1];
+                    $copy = false;
+                    if (preg_match('/^:copy\s+/', $target)) {
+                        $target = preg_replace('/^:copy\s+/', '', $target);
+                        $copy = true;
+                    }
+                    $result[] = array('type' => 'redirect', 'copy' => $copy,
+                        'target' => $this->_parse_string($target));
+                }
+                else if(preg_match('/^(reject|ereject)\s+(.*);$/sm', $content, $matches)) {
+                    $result[] = array('type' => $matches[1], 'target' => $this->_parse_string($matches[2]));
+                }
+                else if(preg_match('/^vacation\s+(.*);$/sm', $content, $matches)) {
+                    $vacation = array('type' => 'vacation');
+
+                    if (preg_match('/:days\s+([0-9]+)/', $content, $vm)) {
+                        $vacation['days'] = $vm[1];
+                        $content = preg_replace('/:days\s+([0-9]+)/', '', $content);
+                    }
+                    if (preg_match('/:subject\s+"(.*?[^\\\])"/', $content, $vm)) {
+                        $vacation['subject'] = $vm[1];
+                        $content = preg_replace('/:subject\s+"(.*?[^\\\])"/', '', $content);
+                    }
+                    if (preg_match('/:addresses\s+\[(.*?[^\\\])\]/', $content, $vm)) {
+                        $vacation['addresses'] = $this->_parse_list($vm[1]);
+                        $content = preg_replace('/:addresses\s+\[(.*?[^\\\])\]/', '', $content);
+                    }
+                    if (preg_match('/:handle\s+"(.*?[^\\\])"/', $content, $vm)) {
+                        $vacation['handle'] = $vm[1];
+                        $content = preg_replace('/:handle\s+"(.*?[^\\\])"/', '', $content);
+                    }
+                    if (preg_match('/:from\s+"(.*?[^\\\])"/', $content, $vm)) {
+                        $vacation['from'] = $vm[1];
+                        $content = preg_replace('/:from\s+"(.*?[^\\\])"/', '', $content);
+                    }
+
+                    $content = preg_replace('/^vacation/', '', $content);
+                    $content = preg_replace('/;$/', '', $content);
+                    $content = trim($content);
+
+                    if (preg_match('/^:mime/', $content, $vm)) {
+                        $vacation['mime'] = true;
+                        $content = preg_replace('/^:mime/', '', $content);
+                    }
+
+                    $vacation['reason'] = $this->_parse_string($content);
+
+                    $result[] = $vacation;
+                }
+            }
+        }
+
+        return $result;
+    }
+
+    /**
+     * Parse test/conditions section
+     *
+     * @param string Text
+     */
+    private function _parse_tests($content)
+    {
+        $result = NULL;
+
+        // lists
+        if (preg_match('/^(allof|anyof)\s+\((.*)\)$/sm', $content, $matches)) {
+            $content = $matches[2];
+            $join = $matches[1]=='allof' ? true : false;
+        }
+        else
+            $join = false;
+
+        // supported tests regular expressions
+        // TODO: comparators, envelope
+        $patterns[] = '(not\s+)?(exists)\s+\[(.*?[^\\\])\]';
+        $patterns[] = '(not\s+)?(exists)\s+(".*?[^\\\]")';
+        $patterns[] = '(not\s+)?(true)';
+        $patterns[] = '(not\s+)?(size)\s+:(under|over)\s+([0-9]+[KGM]{0,1})';
+        $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)((\s+))\[(.*?[^\\\]")\]\s+\[(.*?[^\\\]")\]';
+        $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)((\s+))(".*?[^\\\]")\s+(".*?[^\\\]")';
+        $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)((\s+))\[(.*?[^\\\]")\]\s+(".*?[^\\\]")';
+        $patterns[] = '(not\s+)?(header)\s+:(contains|is|matches)((\s+))(".*?[^\\\]")\s+\[(.*?[^\\\]")\]';
+		$patterns[] = '(not\s+)?(header)\s+:(count\s+"[gtleqn]{2}"|value\s+"[gtleqn]{2}")(\s+:comparator\s+"(.*?[^\\\])")?\s+\[(.*?[^\\\]")\]\s+\[(.*?[^\\\]")\]';
+		$patterns[] = '(not\s+)?(header)\s+:(count\s+"[gtleqn]{2}"|value\s+"[gtleqn]{2}")(\s+:comparator\s+"(.*?[^\\\])")?\s+(".*?[^\\\]")\s+(".*?[^\\\]")';
+		$patterns[] = '(not\s+)?(header)\s+:(count\s+"[gtleqn]{2}"|value\s+"[gtleqn]{2}")(\s+:comparator\s+"(.*?[^\\\])")?\s+\[(.*?[^\\\]")\]\s+(".*?[^\\\]")';
+		$patterns[] = '(not\s+)?(header)\s+:(count\s+"[gtleqn]{2}"|value\s+"[gtleqn]{2}")(\s+:comparator\s+"(.*?[^\\\])")?\s+(".*?[^\\\]")\s+\[(.*?[^\\\]")\]';
+
+        // join patterns...
+        $pattern = '/(' . implode(')|(', $patterns) . ')/';
+
+        // ...and parse tests list
+        if (preg_match_all($pattern, $content, $matches, PREG_SET_ORDER)) {
+            foreach ($matches as $match) {
+                $size = sizeof($match);
+
+                if (preg_match('/^(not\s+)?size/', $match[0])) {
+                    $result[] = array(
+                        'test' => 'size',
+                        'not'  => $match[$size-4] ? true : false,
+                        'type' => $match[$size-2], // under/over
+                        'arg'  => $match[$size-1], // value
+                    );
+                }
+                else if (preg_match('/^(not\s+)?header/', $match[0])) {
+                    $type = $match[$size-5];
+                    if (preg_match('/^(count|value)\s+"([gtleqn]{2})"/', $type, $m))
+                        $type = $m[1] . '-' . $m[2];
+                    
+                    $result[] = array(
+                        'test' => 'header',
+                        'type' => $type, // is/contains/matches
+						'not'  => $match[$size-7] ? true : false,
+                        'arg1' => $this->_parse_list($match[$size-2]), // header(s)
+                        'arg2' => $this->_parse_list($match[$size-1]), // string(s)
+                    );
+                }
+                else if (preg_match('/^(not\s+)?exists/', $match[0])) {
+                    $result[] = array(
+                        'test' => 'exists',
+                        'not'  => $match[$size-3] ? true : false,
+                        'arg'  => $this->_parse_list($match[$size-1]), // header(s)
+                    );
+                }
+                else if (preg_match('/^(not\s+)?true/', $match[0])) {
+                    $result[] = array(
+                        'test' => 'true',
+                        'not'  => $match[$size-2] ? true : false,
+                    );
+                }
+            }
+        }
+
+        return array($result, $join);
+    }
+
+    /**
+     * Parse string value
+     *
+     * @param string Text
+     */
+    private function _parse_string($content)
+    {
+        $text = '';
+        $content = trim($content);
+
+        if (preg_match('/^text:(.*)\.$/sm', $content, $matches))
+            $text = trim($matches[1]);
+        else if (preg_match('/^"(.*)"$/', $content, $matches))
+            $text = str_replace('\"', '"', $matches[1]);
+
+        return $text;
+    }
+
+    /**
+     * Escape special chars in string value
+     *
+     * @param string Text
+     */
+    private function _escape_string($content)
+    {
+        $replace['/"/'] = '\\"';
+
+        if (is_array($content)) {
+            for ($x=0, $y=sizeof($content); $x<$y; $x++)
+                $content[$x] = preg_replace(array_keys($replace),
+                    array_values($replace), $content[$x]);
+
+            return $content;
+        }
+        else
+            return preg_replace(array_keys($replace), array_values($replace), $content);
+    }
+
+    /**
+     * Parse string or list of strings to string or array of strings
+     *
+     * @param string Text
+     */
+    private function _parse_list($content)
+    {
+        $result = array();
+
+        for ($x=0, $len=strlen($content); $x<$len; $x++) {
+            switch ($content[$x]) {
+            case '\\':
+                $str .= $content[++$x];
+                break;
+            case '"':
+                if (isset($str)) {
+                    $result[] = $str;
+                    unset($str);
+                }
+                else
+                    $str = '';
+                break;
+            default:
+                if(isset($str))
+                    $str .= $content[$x];
+            break;
+            }
+        }
+
+        if (sizeof($result)>1)
+            return $result;
+        else if (sizeof($result) == 1)
+            return $result[0];
+        else
+            return NULL;
+    }
+
+    /**
+     * Convert array of elements to list of strings
+     *
+     * @param string Text
+     */
+    private function _print_list($list)
+    {
+        $list = (array) $list;
+        foreach($list as $idx => $val)
+            $list[$idx] = $this->_escape_string($val);
+
+        return '["' . implode('","', $list) . '"]';
+    }
+}