|
 +-----------------------------------------------------------------------+
*/
/**
 * Class to create HTML page output using a skin template
 *
 * @package View
 */
class rcube_output_html extends rcube_output
{
    public $type = 'html';
    protected $message = null;
    protected $js_env = array();
    protected $js_labels = array();
    protected $js_commands = array();
    protected $plugin_skin_path;
    protected $template_name;
    protected $scripts_path = '';
    protected $script_files = array();
    protected $css_files = array();
    protected $scripts = array();
    protected $default_template = "\n
\n\n";
    protected $header = '';
    protected $footer = '';
    protected $body = '';
    protected $base_path = '';
    // deprecated names of templates used before 0.5
    protected $deprecated_templates = array(
        'contact'      => 'showcontact',
        'contactadd'   => 'addcontact',
        'contactedit'  => 'editcontact',
        'identityedit' => 'editidentity',
        'messageprint' => 'printmessage',
    );
    /**
     * Constructor
     *
     * @todo   Replace $this->config with the real rcube_config object
     */
    public function __construct($task = null, $framed = false)
    {
        parent::__construct();
        //$this->framed = $framed;
        $this->set_env('task', $task);
        $this->set_env('x_frame_options', $this->config->get('x_frame_options', 'sameorigin'));
        // load the correct skin (in case user-defined)
        $skin = $this->config->get('skin');
        $this->set_skin($skin);
        $this->set_env('skin', $skin);
        // add common javascripts
        $this->add_script('var '.rcmail::JS_OBJECT_NAME.' = new rcube_webmail();', 'head_top');
        // don't wait for page onload. Call init at the bottom of the page (delayed)
        $this->add_script(rcmail::JS_OBJECT_NAME.'.init();', 'docready');
        $this->scripts_path = 'program/js/';
        $this->include_script('jquery.min.js');
        $this->include_script('common.js');
        $this->include_script('app.js');
        // register common UI objects
        $this->add_handlers(array(
            'loginform'       => array($this, 'login_form'),
            'preloader'       => array($this, 'preloader'),
            'username'        => array($this, 'current_username'),
            'message'         => array($this, 'message_container'),
            'charsetselector' => array($this, 'charset_selector'),
            'aboutcontent'    => array($this, 'about_content'),
        ));
    }
    /**
     * Set environment variable
     *
     * @param string Property name
     * @param mixed Property value
     * @param boolean True if this property should be added to client environment
     */
    public function set_env($name, $value, $addtojs = true)
    {
        $this->env[$name] = $value;
        if ($addtojs || isset($this->js_env[$name])) {
            $this->js_env[$name] = $value;
        }
    }
    /**
     * Getter for the current page title
     *
     * @return string The page title
     */
    protected function get_pagetitle()
    {
        if (!empty($this->pagetitle)) {
            $title = $this->pagetitle;
        }
        else if ($this->env['task'] == 'login') {
            $title = $this->app->gettext(array(
                'name' => 'welcome',
                'vars' => array('product' => $this->config->get('product_name')
            )));
        }
        else {
            $title = ucfirst($this->env['task']);
        }
        return $title;
    }
    /**
     * Set skin
     */
    public function set_skin($skin)
    {
        $valid = false;
        if (!empty($skin) && is_dir('skins/'.$skin) && is_readable('skins/'.$skin)) {
            $skin_path = 'skins/'.$skin;
            $valid = true;
        }
        else {
            $skin_path = $this->config->get('skin_path');
            if (!$skin_path) {
                $skin_path = 'skins/' . rcube_config::DEFAULT_SKIN;
            }
            $valid = !$skin;
        }
        $this->config->set('skin_path', $skin_path);
        return $valid;
    }
    /**
     * Check if a specific template exists
     *
     * @param string Template name
     * @return boolean True if template exists
     */
    public function template_exists($name)
    {
        $filename = $this->config->get('skin_path') . '/templates/' . $name . '.html';
        return (is_file($filename) && is_readable($filename)) || ($this->deprecated_templates[$name] && $this->template_exists($this->deprecated_templates[$name]));
    }
    /**
     * Register a GUI object to the client script
     *
     * @param  string Object name
     * @param  string Object ID
     * @return void
     */
    public function add_gui_object($obj, $id)
    {
        $this->add_script(rcmail::JS_OBJECT_NAME.".gui_object('$obj', '$id');");
    }
    /**
     * Call a client method
     *
     * @param string Method to call
     * @param ... Additional arguments
     */
    public function command()
    {
        $cmd = func_get_args();
        if (strpos($cmd[0], 'plugin.') !== false)
          $this->js_commands[] = array('triggerEvent', $cmd[0], $cmd[1]);
        else
          $this->js_commands[] = $cmd;
    }
    /**
     * Add a localized label to the client environment
     */
    public function add_label()
    {
        $args = func_get_args();
        if (count($args) == 1 && is_array($args[0]))
          $args = $args[0];
        foreach ($args as $name) {
            $this->js_labels[$name] = $this->app->gettext($name);
        }
    }
    /**
     * Invoke display_message command
     *
     * @param string  $message  Message to display
     * @param string  $type     Message type [notice|confirm|error]
     * @param array   $vars     Key-value pairs to be replaced in localized text
     * @param boolean $override Override last set message
     * @param int     $timeout  Message display time in seconds
     * @uses self::command()
     */
    public function show_message($message, $type='notice', $vars=null, $override=true, $timeout=0)
    {
        if ($override || !$this->message) {
            if ($this->app->text_exists($message)) {
                if (!empty($vars))
                    $vars = array_map('Q', $vars);
                $msgtext = $this->app->gettext(array('name' => $message, 'vars' => $vars));
            }
            else
                $msgtext = $message;
            $this->message = $message;
            $this->command('display_message', $msgtext, $type, $timeout * 1000);
        }
    }
    /**
     * Delete all stored env variables and commands
     */
    public function reset()
    {
        parent::reset();
        $this->js_env = array();
        $this->js_labels = array();
        $this->js_commands = array();
        $this->script_files = array();
        $this->scripts      = array();
        $this->header       = '';
        $this->footer       = '';
        $this->body         = '';
    }
    /**
     * Redirect to a certain url
     *
     * @param mixed $p     Either a string with the action or url parameters as key-value pairs
     * @param int   $delay Delay in seconds
     */
    public function redirect($p = array(), $delay = 1)
    {
        $location = $this->app->url($p);
        header('Location: ' . $location);
        exit;
    }
    /**
     * Send the request output to the client.
     * This will either parse a skin tempalte or send an AJAX response
     *
     * @param string  Template name
     * @param boolean True if script should terminate (default)
     */
    public function send($templ = null, $exit = true)
    {
        if ($templ != 'iframe') {
            // prevent from endless loops
            if ($exit != 'recur' && $this->app->plugins->is_processing('render_page')) {
                rcube::raise_error(array('code' => 505, 'type' => 'php',
                  'file' => __FILE__, 'line' => __LINE__,
                  'message' => 'Recursion alert: ignoring output->send()'), true, false);
                return;
            }
            $this->parse($templ, false);
        }
        else {
            $this->framed = $templ == 'iframe' ? true : $this->framed;
            $this->write();
        }
        // set output asap
        ob_flush();
        flush();
        if ($exit) {
            exit;
        }
    }
    /**
     * Process template and write to stdOut
     *
     * @param string $template HTML template content
     */
    public function write($template = '')
    {
        // unlock interface after iframe load
        $unlock = preg_replace('/[^a-z0-9]/i', '', $_REQUEST['_unlock']);
        if ($this->framed) {
            array_unshift($this->js_commands, array('set_busy', false, null, $unlock));
        }
        else if ($unlock) {
            array_unshift($this->js_commands, array('hide_message', $unlock));
        }
        if (!empty($this->script_files))
          $this->set_env('request_token', $this->app->get_request_token());
        // write all env variables to client
        $js = $this->framed ? "if(window.parent) {\n" : '';
        $js .= $this->get_js_commands() . ($this->framed ? ' }' : '');
        $this->add_script($js, 'head_top');
        // send clickjacking protection headers
        $iframe = $this->framed || !empty($_REQUEST['_framed']);
        if (!headers_sent() && ($xframe = $this->app->config->get('x_frame_options', 'sameorigin')))
            header('X-Frame-Options: ' . ($iframe && $xframe == 'deny' ? 'sameorigin' : $xframe));
        // call super method
        $this->_write($template, $this->config->get('skin_path'));
    }
    /**
     * Parse a specific skin template and deliver to stdout (or return)
     *
     * @param  string  Template name
     * @param  boolean Exit script
     * @param  boolean Don't write to stdout, return parsed content instead
     *
     * @link   http://php.net/manual/en/function.exit.php
     */
    function parse($name = 'main', $exit = true, $write = true)
    {
        $skin_path = $this->config->get('skin_path');
        $plugin    = false;
        $realname  = $name;
        $temp      = explode('.', $name, 2);
        $this->plugin_skin_path = null;
        $this->template_name    = $realname;
        if (count($temp) > 1) {
            $plugin    = $temp[0];
            $name      = $temp[1];
            $skin_dir  = $plugin . '/skins/' . $this->config->get('skin');
            $skin_path = $this->plugin_skin_path = $this->app->plugins->dir . $skin_dir;
            // fallback to default skin
            if (!is_dir($skin_path)) {
                $skin_dir = $plugin . '/skins/default';
                $skin_path = $this->plugin_skin_path = $this->app->plugins->dir . $skin_dir;
            }
        }
        $path = "$skin_path/templates/$name.html";
        if (!is_readable($path) && $this->deprecated_templates[$realname]) {
            $path = "$skin_path/templates/".$this->deprecated_templates[$realname].".html";
            if (is_readable($path))
                rcube::raise_error(array('code' => 502, 'type' => 'php',
                    'file' => __FILE__, 'line' => __LINE__,
                    'message' => "Using deprecated template '".$this->deprecated_templates[$realname]
                        ."' in $skin_path/templates. Please rename to '".$realname."'"),
                true, false);
        }
        // read template file
        if (($templ = @file_get_contents($path)) === false) {
            rcube::raise_error(array(
                'code' => 501,
                'type' => 'php',
                'line' => __LINE__,
                'file' => __FILE__,
                'message' => 'Error loading template for '.$realname
                ), true, true);
            return false;
        }
        // replace all path references to plugins/... with the configured plugins dir
        // and /this/ to the current plugin skin directory
        if ($plugin) {
            $templ = preg_replace(array('/\bplugins\//', '/(["\']?)\/this\//'), array($this->app->plugins->url, '\\1'.$this->app->plugins->url.$skin_dir.'/'), $templ);
        }
        // parse for specialtags
        $output = $this->parse_conditions($templ);
        $output = $this->parse_xml($output);
        // trigger generic hook where plugins can put additional content to the page
        $hook = $this->app->plugins->exec_hook("render_page", array('template' => $realname, 'content' => $output));
        // save some memory
        $output = $hook['content'];
        unset($hook['content']);
        $output = $this->parse_with_globals($output);
        // make sure all ') {
                    $hpos++;
                }
                $hpos++;
            }
            $page_header = "\n$page_title\n$page_header\n\n";
        }
        // add page hader
        if ($hpos) {
            $output = substr_replace($output, $page_header, $hpos, 0);
        }
        else {
            $output = $page_header . $output;
        }
        // add page footer
        if (($fpos = strripos($output, '