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2)õ»¥(KûÍ¦†«!„Õ3¹B¨éëµDG2Å™ŠðAÐÏ—f–OšõÔb¼À^^dÖÀ‰¿–ä^Íó5ËP¹½Í9Ën©âg%Å×}Å•Š¡‡è¾:Án›¸úè!Øä*ÂûNr¹³0Âu²FÅÝ3 µØ© æ‰¢ë¼¯´®TbIrQ™Î,óªv[ÛÈqv·lB˜JIÿýJðõÒ1yÏ8å}U7ZÖýÜÓG·%ý1q¿PZè
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åÐäÆþçkq´ Ê†äƒ _ûä±0}¾)P¬Ò6îFÓ0ÐLžTx Wªõ#­_]
`Äôj›Dh>…6ç^!­6»(agGþÜLêºOUÞ¡ÊÐ%•æMÝè¹µEF}GÒêÑ˜Æú¬tþ…Z…~\t£Q/ww‰×¹>Üh¯n`*PBbÙ#uäì‚»D¥[	‹$ü_†ã'¿tDH¨]I~˜}Ú:?9ºp)¬´ºlý:\0f«è%cÍ&Sí„Šx§LÎ“?¤VbÇPniÚG%
çn
WNrK€«®–5ŠFÿ«¯¾×å‘Ð5Â±Ò~Þž™‡‚1Üá&®"E‘UÔUÛ}+/‹Òµ³Þý$‘˜t†±'vÕ°ZÉ!TþIÚ?L™Xò qeß-ÜËTÄ˜ú¯R—ÙÃÅ’¾‰‹Z-òH[î
Ž”øow6¥þçQM0i€OîäÔ}ýå‰&ÉDTÄ0ÇW!‘ì›—à)‡ÜË†& ƒ |Ï c˜)) !== false) {
                    unset($this->exts[$idx]);
                }
            }
        }
    }

    public function __destruct()
    {
        $this->sieve->disconnect();
    }

    /**
     * Getter for error code
     */
    public function error()
    {
        return $this->error ?: false;
    }

    /**
     * Saves current script into server
     */
    public function save($name = null)
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        if (!$this->script) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        if (!$name) {
            $name = $this->current;
        }

        $script = $this->script->as_text();

        if (!$script) {
            $script = '/* empty script */';
        }

        $result = $this->sieve->installScript($name, $script);
        if (is_a($result, 'PEAR_Error')) {
            return $this->_set_error(self::ERROR_INSTALL);
        }

        return true;
    }

    /**
     * Saves text script into server
     */
    public function save_script($name, $content = null)
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        if (!$content) {
            $content = '/* empty script */';
        }

        $result = $this->sieve->installScript($name, $content);

        if (is_a($result, 'PEAR_Error')) {
            $rawErrorMessage = $result->getMessage();
            $errMessages = preg_split("/$name:/", $rawErrorMessage);

            if (count($errMessages) > 0) {
                foreach ($errMessages as $singleError) {
                    $res = preg_match('/line (\d+):(.*)/i', $singleError, $matches);

                    if ($res === 1 ) {
                        if (count($matches) > 2) {
                            $this->errorLines[] = ['line' => $matches[1], 'msg' => $matches[2]];
                        }
                        else {
                            $this->errorLines[] = ['line' => $matches[1], 'msg' => null];
                        }
                    }
                }
            }

            return $this->_set_error(self::ERROR_INSTALL);
        }

        return true;
    }

    /**
     * Returns the current error line within the saved sieve script
     */
    public function get_error_lines()
    {
        return $this->errorLines;
    }

    /**
     * Activates specified script
     */
    public function activate($name = null)
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        if (!$name) {
            $name = $this->current;
        }

        $result = $this->sieve->setActive($name);

        if (is_a($result, 'PEAR_Error')) {
            return $this->_set_error(self::ERROR_ACTIVATE);
        }

        $this->active = $name;

        return true;
    }

    /**
     * De-activates specified script
     */
    public function deactivate()
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        $result = $this->sieve->setActive('');

        if (is_a($result, 'PEAR_Error')) {
            return $this->_set_error(self::ERROR_DEACTIVATE);
        }

        $this->active = null;

        return true;
    }

    /**
     * Removes specified script
     */
    public function remove($name = null)
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        if (!$name) {
            $name = $this->current;
        }

        // script must be deactivated first
        if ($name == $this->sieve->getActive()) {
            $result = $this->sieve->setActive('');

            if (is_a($result, 'PEAR_Error')) {
                return $this->_set_error(self::ERROR_DELETE);
            }

            $this->active = null;
        }

        $result = $this->sieve->removeScript($name);

        if (is_a($result, 'PEAR_Error')) {
            return $this->_set_error(self::ERROR_DELETE);
        }

        if ($name == $this->current) {
            $this->current = null;
        }

        $this->list = 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(self::ERROR_INTERNAL);
        }

        $ext = $this->sieve->getExtensions();

        if (is_a($ext, 'PEAR_Error')) {
            return [];
        }

        // we're working on lower-cased names
        $ext = array_map('strtolower', (array) $ext);

        if ($this->script) {
            $supported = $this->script->get_extensions();
            $ext       = array_values(array_intersect($ext, $supported));
        }

        return $ext;
    }

    /**
     * Gets list of scripts from server
     */
    public function get_scripts()
    {
        if (!$this->list) {
            if (!$this->sieve) {
                return $this->_set_error(self::ERROR_INTERNAL);
            }

            $active = null;
            $list   = $this->sieve->listScripts($active);

            if (is_a($list, 'PEAR_Error')) {
                return $this->_set_error(self::ERROR_OTHER);
            }

            $this->list   = $list;
            $this->active = $active;
        }

        return $this->list;
    }

    /**
     * Returns active script name
     */
    public function get_active()
    {
        if ($this->active !== null) {
            return $this->active;
        }

        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        return $this->active = $this->sieve->getActive();
    }

    /**
     * Loads script by name
     */
    public function load($name)
    {
        if ($this->current === $name) {
            return true;
        }

        $script = $this->get_script($name);

        if ($script === false) {
            return false;
        }

        // try to parse to 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(self::ERROR_INTERNAL);
        }

        // try to parse to 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->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'][] = ['type' => 'stop'];
                }
            }
        }

        return $script;
    }

    /**
     * Gets specified script as text
     */
    public function get_script($name)
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        $content = $this->sieve->getScript($name);

        if (is_a($content, 'PEAR_Error')) {
            return $this->_set_error(self::ERROR_OTHER);
        }

        return $content;
    }

    /**
     * Creates empty script or a copy of another script
     */
    public function copy($name, $copy)
    {
        if (!$this->sieve) {
            return $this->_set_error(self::ERROR_INTERNAL);
        }

        $content = '';

        if ($copy) {
            $content = $this->sieve->getScript($copy);

            if (is_a($content, 'PEAR_Error')) {
                return $this->_set_error(self::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, $message)
    {
        rcube::write_log('sieve', preg_replace('/\r\n$/', '', $message));
    }
}