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<?php
/**
* Roundcube Help Plugin
*
* @author Aleksander 'A.L.E.C' Machniak
* @author Thomas Bruederli <thomas@roundcube.net>
* @license GNU GPLv3+
*
* Configuration (see config.inc.php.dist)
*/
class help extends rcube_plugin
{
// all task excluding 'login' and 'logout'
public $task = '?(?!login|logout).*';
// we've got no ajax handlers
public $noajax = true;
function init()
{
$this->load_config();
$this->add_texts('localization/', false);
// register task
$this->register_task('help');
// register actions
$this->register_action('index', [$this, 'action']);
$this->register_action('about', [$this, 'action']);
$this->register_action('license', [$this, 'action']);
$this->add_hook('startup', [$this, 'startup']);
$this->add_hook('error_page', [$this, 'error_page']);
}
function startup($args)
{
$rcmail = rcmail::get_instance();
if (!$rcmail->output->framed) {
// add taskbar button
$this->add_button([
'command' => 'help',
'class' => 'button-help',
'classsel' => 'button-help button-selected',
'innerclass' => 'button-inner',
'label' => 'help.help',
'type' => 'link',
], 'taskbar'
);
$this->include_script('help.js');
$rcmail->output->set_env('help_open_extwin', $rcmail->config->get('help_open_extwin', false), true);
}
// add style for taskbar button (must be here) and Help UI
$this->include_stylesheet($this->local_skin_path() . '/help.css');
}
function action()
{
$rcmail = rcmail::get_instance();
if ($rcmail->action == 'about') {
$rcmail->output->set_pagetitle($this->gettext('about'));
}
else if ($rcmail->action == 'license') {
$rcmail->output->set_pagetitle($this->gettext('license'));
}
else {
$rcmail->output->set_pagetitle($this->gettext('help'));
}
// register UI objects
$rcmail->output->add_handlers([
'helpcontent' => [$this, 'help_content'],
'tablink' => [$this, 'tablink'],
]);
$rcmail->output->set_env('help_links', $this->help_metadata());
$rcmail->output->send(!empty($_GET['_content']) ? 'help.content' : 'help.help');
}
function help_content($attrib)
{
$rcmail = rcmail::get_instance();
// $rcmail->output->set_env('content', $content);
if (!empty($_GET['_content'])) {
if ($rcmail->action == 'about') {
return file_get_contents($this->home . '/content/about.html');
}
else if ($rcmail->action == 'license') {
return file_get_contents($this->home . '/content/license.html');
}
}
}
function tablink($attrib)
{
$rcmail = rcmail::get_instance();
$attrib['name'] = 'helplink' . $attrib['action'];
$attrib['href'] = $rcmail->url(['_action' => $attrib['action'], '_extwin' => !empty($_REQUEST['_extwin']) ? 1 : null]);
$attrib['rel'] = $attrib['action'];
// title might be already translated here, so revert to it's initial value
// so button() will translate it correctly
$attrib['title'] = $attrib['label'];
$attrib['onclick'] = sprintf("return show_help_content('%s', event)", $attrib['action']);
return $rcmail->output->button($attrib);
}
function help_metadata()
{
$rcmail = rcmail::get_instance();
$content = [];
// About
if (is_readable($this->home . '/content/about.html')) {
$content['about'] = 'self';
}
else {
$default = $rcmail->url(['_task' => 'settings', '_action' => 'about', '_framed' => 1]);
$content['about'] = $rcmail->config->get('help_about_url', $default);
$content['about'] = $this->resolve_language($content['about']);
}
// License
if (is_readable($this->home . '/content/license.html')) {
$content['license'] = 'self';
} else {
$content['license'] = $rcmail->config->get('help_license_url', 'https://www.gnu.org/licenses/gpl-3.0-standalone.html');
$content['license'] = $this->resolve_language($content['license']);
}
// Help Index
$src = $rcmail->config->get('help_source', 'https://docs.roundcube.net/doc/help/1.1/%l/');
$index_map = $rcmail->config->get('help_index_map', []);
// resolve task/action for deep linking
$rel = !empty($_REQUEST['_rel']) ? $_REQUEST['_rel'] : '';
list($task, ) = explode('/', $rel);
if (!empty($index_map[$rel])) {
$src .= $index_map[$rel];
}
else if (!empty($index_map[$task])) {
$src .= $index_map[$task];
}
$content['index'] = $this->resolve_language($src);
return $content;
}
function error_page($args)
{
$rcmail = rcmail::get_instance();
if (
$args['code'] == 403
&& $rcmail->request_status == rcube::REQUEST_ERROR_URL
&& ($url = $rcmail->config->get('help_csrf_info'))
) {
$args['text'] .= '<p>' . html::a(['href' => $url, 'target' => '_blank'], $this->gettext('csrfinfo')) . '</p>';
}
return $args;
}
private function resolve_language($path)
{
// resolve language placeholder
$rcmail = rcmail::get_instance();
$langmap = $rcmail->config->get('help_language_map', ['*' => 'en_US']);
$lang = !empty($langmap[$_SESSION['language']]) ? $langmap[$_SESSION['language']] : $langmap['*'];
return str_replace('%l', $lang, $path);
}
}
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