<?php
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/**
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* Roundcube Help Plugin
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*
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* @author Aleksander 'A.L.E.C' Machniak
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* @author Thomas Bruederli <thomas@roundcube.net>
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* @license GNU GPLv3+
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*
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* Configuration (see config.inc.php.dist)
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*
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**/
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class help extends rcube_plugin
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{
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// all task excluding 'login' and 'logout'
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public $task = '?(?!login|logout).*';
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// we've got no ajax handlers
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public $noajax = true;
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// skip frames
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public $noframe = true;
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function init()
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{
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$this->load_config();
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$this->add_texts('localization/', false);
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// register task
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$this->register_task('help');
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// register actions
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$this->register_action('index', array($this, 'action'));
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$this->register_action('about', array($this, 'action'));
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$this->register_action('license', array($this, 'action'));
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$this->add_hook('startup', array($this, 'startup'));
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$this->add_hook('error_page', array($this, 'error_page'));
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}
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function startup($args)
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{
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$rcmail = rcmail::get_instance();
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// add taskbar button
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$this->add_button(array(
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'command' => 'help',
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'class' => 'button-help',
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'classsel' => 'button-help button-selected',
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'innerclass' => 'button-inner',
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'label' => 'help.help',
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), 'taskbar');
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$this->include_script('help.js');
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$rcmail->output->set_env('help_open_extwin', $rcmail->config->get('help_open_extwin', false), true);
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// add style for taskbar button (must be here) and Help UI
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$skin_path = $this->local_skin_path();
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if (is_file($this->home . "/$skin_path/help.css")) {
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$this->include_stylesheet("$skin_path/help.css");
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}
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}
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function action()
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{
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$rcmail = rcmail::get_instance();
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// register UI objects
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$rcmail->output->add_handlers(array(
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'helpcontent' => array($this, 'content'),
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'tablink' => array($this, 'tablink'),
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));
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if ($rcmail->action == 'about')
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$rcmail->output->set_pagetitle($this->gettext('about'));
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else if ($rcmail->action == 'license')
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$rcmail->output->set_pagetitle($this->gettext('license'));
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else
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$rcmail->output->set_pagetitle($this->gettext('help'));
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$rcmail->output->send('help.help');
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}
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function tablink($attrib)
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{
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$rcmail = rcmail::get_instance();
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$attrib['name'] = 'helplink' . $attrib['action'];
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$attrib['href'] = $rcmail->url(array('_action' => $attrib['action'], '_extwin' => !empty($_REQUEST['_extwin']) ? 1 : null));
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// title might be already translated here, so revert to it's initial value
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// so button() will translate it correctly
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$attrib['title'] = $attrib['label'];
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return $rcmail->output->button($attrib);
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}
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function content($attrib)
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{
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$rcmail = rcmail::get_instance();
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switch ($rcmail->action) {
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case 'about':
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if (is_readable($this->home . '/content/about.html')) {
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return @file_get_contents($this->home . '/content/about.html');
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}
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$default = $rcmail->url(array('_task' => 'settings', '_action' => 'about', '_framed' => 1));
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$src = $rcmail->config->get('help_about_url', $default);
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break;
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case 'license':
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if (is_readable($this->home . '/content/license.html')) {
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return @file_get_contents($this->home . '/content/license.html');
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}
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$src = $rcmail->config->get('help_license_url', 'http://www.gnu.org/licenses/gpl-3.0-standalone.html');
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break;
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default:
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$src = $rcmail->config->get('help_source');
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// resolve task/action for depp linking
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$index_map = $rcmail->config->get('help_index_map', array());
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$rel = $_REQUEST['_rel'];
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list($task,$action) = explode('/', $rel);
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if ($add = $index_map[$rel])
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$src .= $add;
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else if ($add = $index_map[$task])
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$src .= $add;
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break;
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}
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// default content: iframe
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if (!empty($src)) {
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$attrib['src'] = $this->resolve_language($src);
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}
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if (empty($attrib['id']))
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$attrib['id'] = 'rcmailhelpcontent';
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$attrib['name'] = $attrib['id'];
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return $rcmail->output->frame($attrib);
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}
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function error_page($args)
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{
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$rcmail = rcmail::get_instance();
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if ($args['code'] == 403 && $rcmail->request_status == rcube::REQUEST_ERROR_URL && ($url = $rcmail->config->get('help_csrf_info'))) {
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$args['text'] .= '<p>' . html::a(array('href' => $url, 'target' => '_blank'), $this->gettext('csrfinfo')) . '</p>';
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}
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return $args;
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}
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private function resolve_language($path)
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{
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// resolve language placeholder
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$rcmail = rcmail::get_instance();
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$langmap = $rcmail->config->get('help_language_map', array('*' => 'en_US'));
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$lang = $langmap[$_SESSION['language']] ?: $langmap['*'];
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return str_replace('%l', $lang, $path);
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}
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}
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