3 * StatusNet, the distributed open-source microblogging tool
5 * Base class for all actions (~views)
9 * LICENCE: This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU Affero General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU Affero General Public License for more details.
19 * You should have received a copy of the GNU Affero General Public License
20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
24 * @author Evan Prodromou <evan@status.net>
25 * @author Sarven Capadisli <csarven@status.net>
26 * @copyright 2008 StatusNet, Inc.
27 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
28 * @link http://status.net/
31 if (!defined('STATUSNET') && !defined('LACONICA')) {
35 require_once INSTALLDIR.'/lib/noticeform.php';
36 require_once INSTALLDIR.'/lib/htmloutputter.php';
39 * Base class for all actions
41 * This is the base class for all actions in the package. An action is
42 * more or less a "view" in an MVC framework.
44 * Actions are responsible for extracting and validating parameters; using
45 * model classes to read and write to the database; and doing ouput.
49 * @author Evan Prodromou <evan@status.net>
50 * @author Sarven Capadisli <csarven@status.net>
51 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
52 * @link http://status.net/
56 class Action extends HTMLOutputter // lawsuit
63 * Just wraps the HTMLOutputter constructor.
65 * @param string $output URI to output to, default = stdout
66 * @param boolean $indent Whether to indent output, default true
68 * @see XMLOutputter::__construct
69 * @see HTMLOutputter::__construct
71 function __construct($output='php://output', $indent=true)
73 parent::__construct($output, $indent);
77 * For initializing members of the class.
79 * @param array $argarray misc. arguments
81 * @return boolean true
83 function prepare($argarray)
85 $this->args =& common_copy_args($argarray);
90 * Show page, a template method.
96 if (Event::handle('StartShowHTML', array($this))) {
98 Event::handle('EndShowHTML', array($this));
100 if (Event::handle('StartShowHead', array($this))) {
102 Event::handle('EndShowHead', array($this));
104 if (Event::handle('StartShowBody', array($this))) {
106 Event::handle('EndShowBody', array($this));
108 if (Event::handle('StartEndHTML', array($this))) {
110 Event::handle('EndEndHTML', array($this));
115 * Show head, a template method.
121 // XXX: attributes (profile?)
122 $this->elementStart('head');
123 if (Event::handle('StartShowHeadElements', array($this))) {
125 $this->showShortcutIcon();
126 $this->showStylesheets();
127 $this->showOpenSearch();
129 $this->showDescription();
131 Event::handle('EndShowHeadElements', array($this));
133 $this->elementEnd('head');
137 * Show title, a template method.
143 $this->element('title', null,
144 sprintf(_("%s - %s"),
146 common_config('site', 'name')));
150 * Returns the page title
154 * @return string page title
159 return _("Untitled page");
163 * Show themed shortcut icon
167 function showShortcutIcon()
169 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/favicon.ico')) {
170 $this->element('link', array('rel' => 'shortcut icon',
171 'href' => Theme::path('favicon.ico')));
173 $this->element('link', array('rel' => 'shortcut icon',
174 'href' => common_path('favicon.ico')));
177 if (common_config('site', 'mobile')) {
178 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
179 $this->element('link', array('rel' => 'apple-touch-icon',
180 'href' => Theme::path('apple-touch-icon.png')));
182 $this->element('link', array('rel' => 'apple-touch-icon',
183 'href' => common_path('apple-touch-icon.png')));
193 function showStylesheets()
195 if (Event::handle('StartShowStyles', array($this))) {
197 // Use old name for StatusNet for compatibility on events
199 if (Event::handle('StartShowStatusNetStyles', array($this)) &&
200 Event::handle('StartShowLaconicaStyles', array($this))) {
201 $this->cssLink('css/display.css',null,'screen, projection, tv');
202 if (common_config('site', 'mobile')) {
203 // TODO: "handheld" CSS for other mobile devices
204 $this->cssLink('css/mobile.css','base','only screen and (max-device-width: 480px)'); // Mobile WebKit
206 $this->cssLink('css/print.css','base','print');
207 Event::handle('EndShowStatusNetStyles', array($this));
208 Event::handle('EndShowLaconicaStyles', array($this));
211 if (Event::handle('StartShowUAStyles', array($this))) {
212 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
213 'href="'.Theme::path('css/ie.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
214 foreach (array(6,7) as $ver) {
215 if (file_exists(Theme::file('css/ie'.$ver.'.css', 'base'))) {
216 // Yes, IE people should be put in jail.
217 $this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
218 'href="'.Theme::path('css/ie'.$ver.'.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
221 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
222 'href="'.Theme::path('css/ie.css', null).'?version='.STATUSNET_VERSION.'" /><![endif]');
223 Event::handle('EndShowUAStyles', array($this));
226 if (Event::handle('StartShowDesign', array($this))) {
228 $user = common_current_user();
230 if (empty($user) || $user->viewdesigns) {
231 $design = $this->getDesign();
233 if (!empty($design)) {
234 $design->showCSS($this);
238 Event::handle('EndShowDesign', array($this));
240 Event::handle('EndShowStyles', array($this));
245 * Show javascript headers
249 function showScripts()
251 if (Event::handle('StartShowScripts', array($this))) {
252 if (Event::handle('StartShowJQueryScripts', array($this))) {
253 $this->script('js/jquery.min.js');
254 $this->script('js/jquery.form.js');
255 $this->script('js/jquery.joverlay.min.js');
256 Event::handle('EndShowJQueryScripts', array($this));
258 if (Event::handle('StartShowStatusNetScripts', array($this)) &&
259 Event::handle('StartShowLaconicaScripts', array($this))) {
260 $this->script('js/xbImportNode.js');
261 $this->script('js/util.js');
262 $this->script('js/geometa.js');
263 // Frame-busting code to avoid clickjacking attacks.
264 $this->element('script', array('type' => 'text/javascript'),
265 'if (window.top !== window.self) { window.top.location.href = window.self.location.href; }');
266 Event::handle('EndShowStatusNetScripts', array($this));
267 Event::handle('EndShowLaconicaScripts', array($this));
269 Event::handle('EndShowScripts', array($this));
274 * Show OpenSearch headers
278 function showOpenSearch()
280 $this->element('link', array('rel' => 'search',
281 'type' => 'application/opensearchdescription+xml',
282 'href' => common_local_url('opensearch', array('type' => 'people')),
283 'title' => common_config('site', 'name').' People Search'));
284 $this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
285 'href' => common_local_url('opensearch', array('type' => 'notice')),
286 'title' => common_config('site', 'name').' Notice Search'));
299 $feeds = $this->getFeeds();
302 foreach ($feeds as $feed) {
303 $this->element('link', array('rel' => $feed->rel(),
304 'href' => $feed->url,
305 'type' => $feed->mimeType(),
306 'title' => $feed->title));
318 function showDescription()
320 // does nothing by default
324 * Show extra stuff in <head>.
332 // does nothing by default
338 * Calls template methods
344 $this->elementStart('body', (common_current_user()) ? array('id' => $this->trimmed('action'),
345 'class' => 'user_in')
346 : array('id' => $this->trimmed('action')));
347 $this->elementStart('div', array('id' => 'wrap'));
348 if (Event::handle('StartShowHeader', array($this))) {
350 Event::handle('EndShowHeader', array($this));
353 if (Event::handle('StartShowFooter', array($this))) {
355 Event::handle('EndShowFooter', array($this));
357 $this->elementEnd('div');
358 $this->showScripts();
359 $this->elementEnd('body');
363 * Show header of the page.
365 * Calls template methods
369 function showHeader()
371 $this->elementStart('div', array('id' => 'header'));
373 $this->showPrimaryNav();
374 $this->showSiteNotice();
375 if (common_logged_in()) {
376 $this->showNoticeForm();
378 $this->showAnonymousMessage();
380 $this->elementEnd('div');
384 * Show configured logo.
390 $this->elementStart('address', array('id' => 'site_contact',
391 'class' => 'vcard'));
392 if (Event::handle('StartAddressData', array($this))) {
393 $this->elementStart('a', array('class' => 'url home bookmark',
394 'href' => common_local_url('public')));
395 if (common_config('site', 'logo') || file_exists(Theme::file('logo.png'))) {
396 $this->element('img', array('class' => 'logo photo',
397 'src' => (common_config('site', 'logo')) ? common_config('site', 'logo') : Theme::path('logo.png'),
398 'alt' => common_config('site', 'name')));
400 $this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
401 $this->elementEnd('a');
402 Event::handle('EndAddressData', array($this));
404 $this->elementEnd('address');
408 * Show primary navigation.
412 function showPrimaryNav()
414 $user = common_current_user();
416 if (common_config('xmpp', 'enabled')) {
417 $connect = 'imsettings';
418 } else if (common_config('sms', 'enabled')) {
419 $connect = 'smssettings';
420 } else if (common_config('twitter', 'enabled')) {
421 $connect = 'twittersettings';
424 $this->elementStart('dl', array('id' => 'site_nav_global_primary'));
425 $this->element('dt', null, _('Primary site navigation'));
426 $this->elementStart('dd');
427 $this->elementStart('ul', array('class' => 'nav'));
428 if (Event::handle('StartPrimaryNav', array($this))) {
430 $this->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
431 _('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
432 $this->menuItem(common_local_url('profilesettings'),
433 _('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
435 $this->menuItem(common_local_url($connect),
436 _('Connect'), _('Connect to services'), false, 'nav_connect');
438 if ($user->hasRight(Right::CONFIGURESITE)) {
439 $this->menuItem(common_local_url('siteadminpanel'),
440 _('Admin'), _('Change site configuration'), false, 'nav_admin');
442 if (common_config('invite', 'enabled')) {
443 $this->menuItem(common_local_url('invite'),
445 sprintf(_('Invite friends and colleagues to join you on %s'),
446 common_config('site', 'name')),
447 false, 'nav_invitecontact');
449 $this->menuItem(common_local_url('logout'),
450 _('Logout'), _('Logout from the site'), false, 'nav_logout');
453 if (!common_config('site', 'closed')) {
454 $this->menuItem(common_local_url('register'),
455 _('Register'), _('Create an account'), false, 'nav_register');
457 $this->menuItem(common_local_url('login'),
458 _('Login'), _('Login to the site'), false, 'nav_login');
460 $this->menuItem(common_local_url('doc', array('title' => 'help')),
461 _('Help'), _('Help me!'), false, 'nav_help');
462 if ($user || !common_config('site', 'private')) {
463 $this->menuItem(common_local_url('peoplesearch'),
464 _('Search'), _('Search for people or text'), false, 'nav_search');
466 Event::handle('EndPrimaryNav', array($this));
468 $this->elementEnd('ul');
469 $this->elementEnd('dd');
470 $this->elementEnd('dl');
478 function showSiteNotice()
480 // Revist. Should probably do an hAtom pattern here
481 $text = common_config('site', 'notice');
483 $this->elementStart('dl', array('id' => 'site_notice',
484 'class' => 'system_notice'));
485 $this->element('dt', null, _('Site notice'));
486 $this->elementStart('dd', null);
488 $this->elementEnd('dd');
489 $this->elementEnd('dl');
496 * MAY overload if no notice form needed... or direct message box????
500 function showNoticeForm()
502 $notice_form = new NoticeForm($this);
503 $notice_form->show();
507 * Show anonymous message.
513 function showAnonymousMessage()
515 // needs to be defined by the class
521 * Shows local navigation, content block and aside.
527 $this->elementStart('div', array('id' => 'core'));
528 if (Event::handle('StartShowLocalNavBlock', array($this))) {
529 $this->showLocalNavBlock();
530 Event::handle('EndShowLocalNavBlock', array($this));
532 if (Event::handle('StartShowContentBlock', array($this))) {
533 $this->showContentBlock();
534 Event::handle('EndShowContentBlock', array($this));
536 if (Event::handle('StartShowAside', array($this))) {
538 Event::handle('EndShowAside', array($this));
540 $this->elementEnd('div');
544 * Show local navigation block.
548 function showLocalNavBlock()
550 $this->elementStart('dl', array('id' => 'site_nav_local_views'));
551 $this->element('dt', null, _('Local views'));
552 $this->elementStart('dd');
553 $this->showLocalNav();
554 $this->elementEnd('dd');
555 $this->elementEnd('dl');
559 * Show local navigation.
565 function showLocalNav()
567 // does nothing by default
571 * Show content block.
575 function showContentBlock()
577 $this->elementStart('div', array('id' => 'content'));
578 $this->showPageTitle();
579 $this->showPageNoticeBlock();
580 $this->elementStart('div', array('id' => 'content_inner'));
581 // show the actual content (forms, lists, whatever)
582 $this->showContent();
583 $this->elementEnd('div');
584 $this->elementEnd('div');
592 function showPageTitle()
594 $this->element('h1', null, $this->title());
598 * Show page notice block.
600 * Only show the block if a subclassed action has overrided
601 * Action::showPageNotice(), or an event handler is registered for
602 * the StartShowPageNotice event, in which case we assume the
603 * 'page_notice' definition list is desired. This is to prevent
604 * empty 'page_notice' definition lists from being output everywhere.
608 function showPageNoticeBlock()
610 $rmethod = new ReflectionMethod($this, 'showPageNotice');
611 $dclass = $rmethod->getDeclaringClass()->getName();
613 if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
615 $this->elementStart('dl', array('id' => 'page_notice',
616 'class' => 'system_notice'));
617 $this->element('dt', null, _('Page notice'));
618 $this->elementStart('dd');
619 if (Event::handle('StartShowPageNotice', array($this))) {
620 $this->showPageNotice();
621 Event::handle('EndShowPageNotice', array($this));
623 $this->elementEnd('dd');
624 $this->elementEnd('dl');
631 * SHOULD overload (unless there's not a notice)
635 function showPageNotice()
642 * MUST overload (unless there's not a notice)
646 function showContent()
658 $this->elementStart('div', array('id' => 'aside_primary',
659 'class' => 'aside'));
660 if (Event::handle('StartShowExportData', array($this))) {
661 $this->showExportData();
662 Event::handle('EndShowExportData', array($this));
664 if (Event::handle('StartShowSections', array($this))) {
665 $this->showSections();
666 Event::handle('EndShowSections', array($this));
668 $this->elementEnd('div');
672 * Show export data feeds.
677 function showExportData()
679 $feeds = $this->getFeeds();
681 $fl = new FeedList($this);
693 function showSections()
695 // for each section, show it
703 function showFooter()
705 $this->elementStart('div', array('id' => 'footer'));
706 $this->showSecondaryNav();
707 $this->showLicenses();
708 $this->elementEnd('div');
712 * Show secondary navigation.
716 function showSecondaryNav()
718 $this->elementStart('dl', array('id' => 'site_nav_global_secondary'));
719 $this->element('dt', null, _('Secondary site navigation'));
720 $this->elementStart('dd', null);
721 $this->elementStart('ul', array('class' => 'nav'));
722 if (Event::handle('StartSecondaryNav', array($this))) {
723 $this->menuItem(common_local_url('doc', array('title' => 'help')),
725 $this->menuItem(common_local_url('doc', array('title' => 'about')),
727 $this->menuItem(common_local_url('doc', array('title' => 'faq')),
729 $bb = common_config('site', 'broughtby');
731 $this->menuItem(common_local_url('doc', array('title' => 'tos')),
734 $this->menuItem(common_local_url('doc', array('title' => 'privacy')),
736 $this->menuItem(common_local_url('doc', array('title' => 'source')),
738 $this->menuItem(common_local_url('doc', array('title' => 'contact')),
740 $this->menuItem(common_local_url('doc', array('title' => 'badge')),
742 Event::handle('EndSecondaryNav', array($this));
744 $this->elementEnd('ul');
745 $this->elementEnd('dd');
746 $this->elementEnd('dl');
754 function showLicenses()
756 $this->elementStart('dl', array('id' => 'licenses'));
757 $this->showStatusNetLicense();
758 $this->showContentLicense();
759 $this->elementEnd('dl');
763 * Show StatusNet license.
767 function showStatusNetLicense()
769 $this->element('dt', array('id' => 'site_statusnet_license'), _('StatusNet software license'));
770 $this->elementStart('dd', null);
771 if (common_config('site', 'broughtby')) {
772 $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%). ');
774 $instr = _('**%%site.name%%** is a microblogging service. ');
776 $instr .= sprintf(_('It runs the [StatusNet](http://status.net/) microblogging software, version %s, available under the [GNU Affero General Public License](http://www.fsf.org/licensing/licenses/agpl-3.0.html).'), STATUSNET_VERSION);
777 $output = common_markup_to_html($instr);
779 $this->elementEnd('dd');
784 * Show content license.
788 function showContentLicense()
790 $this->element('dt', array('id' => 'site_content_license'), _('Site content license'));
791 $this->elementStart('dd', array('id' => 'site_content_license_cc'));
792 $this->elementStart('p');
793 $this->element('img', array('id' => 'license_cc',
794 'src' => common_config('license', 'image'),
795 'alt' => common_config('license', 'title'),
798 //TODO: This is dirty: i18n
799 $this->text(_('All '.common_config('site', 'name').' content and data are available under the '));
800 $this->element('a', array('class' => 'license',
801 'rel' => 'external license',
802 'href' => common_config('license', 'url')),
803 common_config('license', 'title'));
804 $this->text(_('license.'));
805 $this->elementEnd('p');
806 $this->elementEnd('dd');
810 * Return last modified, if applicable.
814 * @return string last modified http header
816 function lastModified()
818 // For comparison with If-Last-Modified
819 // If not applicable, return null
824 * Return etag, if applicable.
828 * @return string etag http header
836 * Return true if read only.
840 * @param array $args other arguments
842 * @return boolean is read only action?
845 function isReadOnly($args)
851 * Returns query argument or default value if not found
853 * @param string $key requested argument
854 * @param string $def default value to return if $key is not provided
856 * @return boolean is read only action?
858 function arg($key, $def=null)
860 if (array_key_exists($key, $this->args)) {
861 return $this->args[$key];
868 * Returns trimmed query argument or default value if not found
870 * @param string $key requested argument
871 * @param string $def default value to return if $key is not provided
873 * @return boolean is read only action?
875 function trimmed($key, $def=null)
877 $arg = $this->arg($key, $def);
878 return is_string($arg) ? trim($arg) : $arg;
884 * @param array $argarray is ignored since it's now passed in in prepare()
886 * @return boolean is read only action?
888 function handle($argarray=null)
890 header('Vary: Accept-Encoding,Cookie');
891 $lm = $this->lastModified();
892 $etag = $this->etag();
894 header('ETag: ' . $etag);
897 header('Last-Modified: ' . date(DATE_RFC1123, $lm));
898 if (array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
899 $if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
900 $ims = strtotime($if_modified_since);
902 $if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
903 $_SERVER['HTTP_IF_NONE_MATCH'] : null;
904 if (!$if_none_match ||
906 $this->_hasEtag($etag, $if_none_match)) {
907 header('HTTP/1.1 304 Not Modified');
908 // Better way to do this?
917 * HasĀ etag? (private)
919 * @param string $etag etag http header
920 * @param string $if_none_match ifNoneMatch http header
925 function _hasEtag($etag, $if_none_match)
927 $etags = explode(',', $if_none_match);
928 return in_array($etag, $etags) || in_array('*', $etags);
932 * Boolean understands english (yes, no, true, false)
934 * @param string $key query key we're interested in
935 * @param string $def default value
937 * @return boolean interprets yes/no strings as boolean
939 function boolean($key, $def=false)
941 $arg = strtolower($this->trimmed($key));
945 } else if (in_array($arg, array('true', 'yes', '1'))) {
947 } else if (in_array($arg, array('false', 'no', '0'))) {
957 * @param string $msg error message to display
958 * @param integer $code http error code, 500 by default
963 function serverError($msg, $code=500)
965 $action = $this->trimmed('action');
966 common_debug("Server error '$code' on '$action': $msg", __FILE__);
967 throw new ServerException($msg, $code);
973 * @param string $msg error message to display
974 * @param integer $code http error code, 400 by default
979 function clientError($msg, $code=400)
981 $action = $this->trimmed('action');
982 common_debug("User error '$code' on '$action': $msg", __FILE__);
983 throw new ClientException($msg, $code);
987 * Returns the current URL
989 * @return string current URL
994 list($action, $args) = $this->returnToArgs();
995 return common_local_url($action, $args);
999 * Returns arguments sufficient for re-constructing URL
1001 * @return array two elements: action, other args
1004 function returnToArgs()
1006 $action = $this->trimmed('action');
1007 $args = $this->args;
1008 unset($args['action']);
1009 if (common_config('site', 'fancy')) {
1012 if (array_key_exists('submit', $args)) {
1013 unset($args['submit']);
1015 foreach (array_keys($_COOKIE) as $cookie) {
1016 unset($args[$cookie]);
1018 return array($action, $args);
1022 * Generate a menu item
1024 * @param string $url menu URL
1025 * @param string $text menu name
1026 * @param string $title title attribute, null by default
1027 * @param boolean $is_selected current menu item, false by default
1028 * @param string $id element id, null by default
1032 function menuItem($url, $text, $title=null, $is_selected=false, $id=null)
1034 // Added @id to li for some control.
1035 // XXX: We might want to move this to htmloutputter.php
1038 $lattrs['class'] = 'current';
1041 (is_null($id)) ? $lattrs : $lattrs['id'] = $id;
1043 $this->elementStart('li', $lattrs);
1044 $attrs['href'] = $url;
1046 $attrs['title'] = $title;
1048 $this->element('a', $attrs, $text);
1049 $this->elementEnd('li');
1053 * Generate pagination links
1055 * @param boolean $have_before is there something before?
1056 * @param boolean $have_after is there something after?
1057 * @param integer $page current page
1058 * @param string $action current action
1059 * @param array $args rest of query arguments
1063 function pagination($have_before, $have_after, $page, $action, $args=null)
1065 // Does a little before-after block for next/prev page
1066 if ($have_before || $have_after) {
1067 $this->elementStart('dl', 'pagination');
1068 $this->element('dt', null, _('Pagination'));
1069 $this->elementStart('dd', null);
1070 $this->elementStart('ul', array('class' => 'nav'));
1073 $pargs = array('page' => $page-1);
1074 $this->elementStart('li', array('class' => 'nav_prev'));
1075 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1078 $this->elementEnd('li');
1081 $pargs = array('page' => $page+1);
1082 $this->elementStart('li', array('class' => 'nav_next'));
1083 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1086 $this->elementEnd('li');
1088 if ($have_before || $have_after) {
1089 $this->elementEnd('ul');
1090 $this->elementEnd('dd');
1091 $this->elementEnd('dl');
1096 * An array of feeds for this action.
1098 * Returns an array of potential feeds for this action.
1100 * @return array Feed object to show in head and links
1109 * A design for this action
1111 * @return Design a design object to use
1114 function getDesign()
1116 return Design::siteDesign();
1120 * Check the session token.
1122 * Checks that the current form has the correct session token,
1123 * and throw an exception if it does not.
1128 function checkSessionToken()
1131 $token = $this->trimmed('token');
1132 if (empty($token) || $token != common_session_token()) {
1133 $this->clientError(_('There was a problem with your session token.'));