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');
124 $this->showShortcutIcon();
125 $this->showStylesheets();
126 $this->showScripts();
127 $this->showOpenSearch();
129 $this->showDescription();
131 $this->elementEnd('head');
135 * Show title, a template method.
141 $this->element('title', null,
142 sprintf(_("%s - %s"),
144 common_config('site', 'name')));
148 * Returns the page title
152 * @return string page title
157 return _("Untitled page");
161 * Show themed shortcut icon
165 function showShortcutIcon()
167 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/favicon.ico')) {
168 $this->element('link', array('rel' => 'shortcut icon',
169 'href' => theme_path('favicon.ico')));
171 $this->element('link', array('rel' => 'shortcut icon',
172 'href' => common_path('favicon.ico')));
175 if (common_config('site', 'mobile')) {
176 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
177 $this->element('link', array('rel' => 'apple-touch-icon',
178 'href' => theme_path('apple-touch-icon.png')));
180 $this->element('link', array('rel' => 'apple-touch-icon',
181 'href' => common_path('apple-touch-icon.png')));
191 function showStylesheets()
193 if (Event::handle('StartShowStyles', array($this))) {
195 // Use old name for StatusNet for compatibility on events
197 if (Event::handle('StartShowStatusNetStyles', array($this)) &&
198 Event::handle('StartShowLaconicaStyles', array($this))) {
199 $this->cssLink('css/display.css',null,'screen, projection, tv');
200 if (common_config('site', 'mobile')) {
201 // TODO: "handheld" CSS for other mobile devices
202 $this->cssLink('css/mobile.css','base','only screen and (max-device-width: 480px)'); // Mobile WebKit
204 $this->cssLink('css/print.css','base','print');
205 Event::handle('EndShowStatusNetStyles', array($this));
206 Event::handle('EndShowLaconicaStyles', array($this));
209 if (Event::handle('StartShowUAStyles', array($this))) {
210 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
211 'href="'.theme_path('css/ie.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
212 foreach (array(6,7) as $ver) {
213 if (file_exists(theme_file('css/ie'.$ver.'.css', 'base'))) {
214 // Yes, IE people should be put in jail.
215 $this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
216 'href="'.theme_path('css/ie'.$ver.'.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
219 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
220 'href="'.theme_path('css/ie.css', null).'?version='.STATUSNET_VERSION.'" /><![endif]');
221 Event::handle('EndShowUAStyles', array($this));
224 if (Event::handle('StartShowDesign', array($this))) {
226 $user = common_current_user();
228 if (empty($user) || $user->viewdesigns) {
229 $design = $this->getDesign();
231 if (!empty($design)) {
232 $design->showCSS($this);
236 Event::handle('EndShowDesign', array($this));
238 Event::handle('EndShowStyles', array($this));
243 * Show javascript headers
247 function showScripts()
249 if (Event::handle('StartShowScripts', array($this))) {
250 if (Event::handle('StartShowJQueryScripts', array($this))) {
251 $this->script('js/jquery.min.js');
252 $this->script('js/jquery.form.js');
253 $this->script('js/jquery.joverlay.min.js');
254 Event::handle('EndShowJQueryScripts', array($this));
256 if (Event::handle('StartShowStatusNetScripts', array($this)) &&
257 Event::handle('StartShowLaconicaScripts', array($this))) {
258 $this->script('js/xbImportNode.js');
259 $this->script('js/util.js');
260 // Frame-busting code to avoid clickjacking attacks.
261 $this->element('script', array('type' => 'text/javascript'),
262 'if (window.top !== window.self) { window.top.location.href = window.self.location.href; }');
263 Event::handle('EndShowStatusNetScripts', array($this));
264 Event::handle('EndShowLaconicaScripts', array($this));
266 Event::handle('EndShowScripts', array($this));
271 * Show OpenSearch headers
275 function showOpenSearch()
277 $this->element('link', array('rel' => 'search',
278 'type' => 'application/opensearchdescription+xml',
279 'href' => common_local_url('opensearch', array('type' => 'people')),
280 'title' => common_config('site', 'name').' People Search'));
281 $this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
282 'href' => common_local_url('opensearch', array('type' => 'notice')),
283 'title' => common_config('site', 'name').' Notice Search'));
296 $feeds = $this->getFeeds();
299 foreach ($feeds as $feed) {
300 $this->element('link', array('rel' => $feed->rel(),
301 'href' => $feed->url,
302 'type' => $feed->mimeType(),
303 'title' => $feed->title));
315 function showDescription()
317 // does nothing by default
321 * Show extra stuff in <head>.
329 // does nothing by default
335 * Calls template methods
341 $this->elementStart('body', (common_current_user()) ? array('id' => $this->trimmed('action'),
342 'class' => 'user_in')
343 : array('id' => $this->trimmed('action')));
344 $this->elementStart('div', array('id' => 'wrap'));
345 if (Event::handle('StartShowHeader', array($this))) {
347 Event::handle('EndShowHeader', array($this));
350 if (Event::handle('StartShowFooter', array($this))) {
352 Event::handle('EndShowFooter', array($this));
354 $this->elementEnd('div');
355 $this->elementEnd('body');
359 * Show header of the page.
361 * Calls template methods
365 function showHeader()
367 $this->elementStart('div', array('id' => 'header'));
369 $this->showPrimaryNav();
370 $this->showSiteNotice();
371 if (common_logged_in()) {
372 $this->showNoticeForm();
374 $this->showAnonymousMessage();
376 $this->elementEnd('div');
380 * Show configured logo.
386 $this->elementStart('address', array('id' => 'site_contact',
387 'class' => 'vcard'));
388 if (Event::handle('StartAddressData', array($this))) {
389 $this->elementStart('a', array('class' => 'url home bookmark',
390 'href' => common_local_url('public')));
391 if (common_config('site', 'logo') || file_exists(theme_file('logo.png'))) {
392 $this->element('img', array('class' => 'logo photo',
393 'src' => (common_config('site', 'logo')) ? common_config('site', 'logo') : theme_path('logo.png'),
394 'alt' => common_config('site', 'name')));
396 $this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
397 $this->elementEnd('a');
398 Event::handle('EndAddressData', array($this));
400 $this->elementEnd('address');
404 * Show primary navigation.
408 function showPrimaryNav()
410 $user = common_current_user();
412 if (common_config('xmpp', 'enabled')) {
413 $connect = 'imsettings';
414 } else if (common_config('sms', 'enabled')) {
415 $connect = 'smssettings';
416 } else if (common_config('twitter', 'enabled')) {
417 $connect = 'twittersettings';
420 $this->elementStart('dl', array('id' => 'site_nav_global_primary'));
421 $this->element('dt', null, _('Primary site navigation'));
422 $this->elementStart('dd');
423 $this->elementStart('ul', array('class' => 'nav'));
424 if (Event::handle('StartPrimaryNav', array($this))) {
426 $this->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
427 _('Home'), _('Personal profile and friends timeline'), false, 'nav_home');
428 $this->menuItem(common_local_url('profilesettings'),
429 _('Account'), _('Change your email, avatar, password, profile'), false, 'nav_account');
431 $this->menuItem(common_local_url($connect),
432 _('Connect'), _('Connect to services'), false, 'nav_connect');
434 if (common_config('invite', 'enabled')) {
435 $this->menuItem(common_local_url('invite'),
437 sprintf(_('Invite friends and colleagues to join you on %s'),
438 common_config('site', 'name')),
439 false, 'nav_invitecontact');
441 $this->menuItem(common_local_url('logout'),
442 _('Logout'), _('Logout from the site'), false, 'nav_logout');
445 if (!common_config('site', 'closed')) {
446 $this->menuItem(common_local_url('register'),
447 _('Register'), _('Create an account'), false, 'nav_register');
449 $this->menuItem(common_local_url('login'),
450 _('Login'), _('Login to the site'), false, 'nav_login');
452 $this->menuItem(common_local_url('doc', array('title' => 'help')),
453 _('Help'), _('Help me!'), false, 'nav_help');
454 if ($user || !common_config('site', 'private')) {
455 $this->menuItem(common_local_url('peoplesearch'),
456 _('Search'), _('Search for people or text'), false, 'nav_search');
458 Event::handle('EndPrimaryNav', array($this));
460 $this->elementEnd('ul');
461 $this->elementEnd('dd');
462 $this->elementEnd('dl');
470 function showSiteNotice()
472 // Revist. Should probably do an hAtom pattern here
473 $text = common_config('site', 'notice');
475 $this->elementStart('dl', array('id' => 'site_notice',
476 'class' => 'system_notice'));
477 $this->element('dt', null, _('Site notice'));
478 $this->elementStart('dd', null);
480 $this->elementEnd('dd');
481 $this->elementEnd('dl');
488 * MAY overload if no notice form needed... or direct message box????
492 function showNoticeForm()
494 $notice_form = new NoticeForm($this);
495 $notice_form->show();
499 * Show anonymous message.
505 function showAnonymousMessage()
507 // needs to be defined by the class
513 * Shows local navigation, content block and aside.
519 $this->elementStart('div', array('id' => 'core'));
520 if (Event::handle('StartShowLocalNavBlock', array($this))) {
521 $this->showLocalNavBlock();
522 Event::handle('EndShowLocalNavBlock', array($this));
524 if (Event::handle('StartShowContentBlock', array($this))) {
525 $this->showContentBlock();
526 Event::handle('EndShowContentBlock', array($this));
529 $this->elementEnd('div');
533 * Show local navigation block.
537 function showLocalNavBlock()
539 $this->elementStart('dl', array('id' => 'site_nav_local_views'));
540 $this->element('dt', null, _('Local views'));
541 $this->elementStart('dd');
542 $this->showLocalNav();
543 $this->elementEnd('dd');
544 $this->elementEnd('dl');
548 * Show local navigation.
554 function showLocalNav()
556 // does nothing by default
560 * Show content block.
564 function showContentBlock()
566 $this->elementStart('div', array('id' => 'content'));
567 $this->showPageTitle();
568 $this->showPageNoticeBlock();
569 $this->elementStart('div', array('id' => 'content_inner'));
570 // show the actual content (forms, lists, whatever)
571 $this->showContent();
572 $this->elementEnd('div');
573 $this->elementEnd('div');
581 function showPageTitle()
583 $this->element('h1', null, $this->title());
587 * Show page notice block.
589 * Only show the block if a subclassed action has overrided
590 * Action::showPageNotice(), or an event handler is registered for
591 * the StartShowPageNotice event, in which case we assume the
592 * 'page_notice' definition list is desired. This is to prevent
593 * empty 'page_notice' definition lists from being output everywhere.
597 function showPageNoticeBlock()
599 $rmethod = new ReflectionMethod($this, 'showPageNotice');
600 $dclass = $rmethod->getDeclaringClass()->getName();
602 if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
604 $this->elementStart('dl', array('id' => 'page_notice',
605 'class' => 'system_notice'));
606 $this->element('dt', null, _('Page notice'));
607 $this->elementStart('dd');
608 if (Event::handle('StartShowPageNotice', array($this))) {
609 $this->showPageNotice();
610 Event::handle('EndShowPageNotice', array($this));
612 $this->elementEnd('dd');
613 $this->elementEnd('dl');
620 * SHOULD overload (unless there's not a notice)
624 function showPageNotice()
631 * MUST overload (unless there's not a notice)
635 function showContent()
647 $this->elementStart('div', array('id' => 'aside_primary',
648 'class' => 'aside'));
649 if (Event::handle('StartShowExportData', array($this))) {
650 $this->showExportData();
651 Event::handle('EndShowExportData', array($this));
653 if (Event::handle('StartShowSections', array($this))) {
654 $this->showSections();
655 Event::handle('EndShowSections', array($this));
657 $this->elementEnd('div');
661 * Show export data feeds.
666 function showExportData()
668 $feeds = $this->getFeeds();
670 $fl = new FeedList($this);
682 function showSections()
684 // for each section, show it
692 function showFooter()
694 $this->elementStart('div', array('id' => 'footer'));
695 $this->showSecondaryNav();
696 $this->showLicenses();
697 $this->elementEnd('div');
701 * Show secondary navigation.
705 function showSecondaryNav()
707 $this->elementStart('dl', array('id' => 'site_nav_global_secondary'));
708 $this->element('dt', null, _('Secondary site navigation'));
709 $this->elementStart('dd', null);
710 $this->elementStart('ul', array('class' => 'nav'));
711 if (Event::handle('StartSecondaryNav', array($this))) {
712 $this->menuItem(common_local_url('doc', array('title' => 'help')),
714 $this->menuItem(common_local_url('doc', array('title' => 'about')),
716 $this->menuItem(common_local_url('doc', array('title' => 'faq')),
718 $bb = common_config('site', 'broughtby');
720 $this->menuItem(common_local_url('doc', array('title' => 'tos')),
723 $this->menuItem(common_local_url('doc', array('title' => 'privacy')),
725 $this->menuItem(common_local_url('doc', array('title' => 'source')),
727 $this->menuItem(common_local_url('doc', array('title' => 'contact')),
729 $this->menuItem(common_local_url('doc', array('title' => 'badge')),
731 Event::handle('EndSecondaryNav', array($this));
733 $this->elementEnd('ul');
734 $this->elementEnd('dd');
735 $this->elementEnd('dl');
743 function showLicenses()
745 $this->elementStart('dl', array('id' => 'licenses'));
746 $this->showStatusNetLicense();
747 $this->showContentLicense();
748 $this->elementEnd('dl');
752 * Show StatusNet license.
756 function showStatusNetLicense()
758 $this->element('dt', array('id' => 'site_statusnet_license'), _('StatusNet software license'));
759 $this->elementStart('dd', null);
760 if (common_config('site', 'broughtby')) {
761 $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%). ');
763 $instr = _('**%%site.name%%** is a microblogging service. ');
765 $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);
766 $output = common_markup_to_html($instr);
768 $this->elementEnd('dd');
773 * Show content license.
777 function showContentLicense()
779 $this->element('dt', array('id' => 'site_content_license'), _('Site content license'));
780 $this->elementStart('dd', array('id' => 'site_content_license_cc'));
781 $this->elementStart('p');
782 $this->element('img', array('id' => 'license_cc',
783 'src' => common_config('license', 'image'),
784 'alt' => common_config('license', 'title'),
787 //TODO: This is dirty: i18n
788 $this->text(_('All '.common_config('site', 'name').' content and data are available under the '));
789 $this->element('a', array('class' => 'license',
790 'rel' => 'external license',
791 'href' => common_config('license', 'url')),
792 common_config('license', 'title'));
793 $this->text(_('license.'));
794 $this->elementEnd('p');
795 $this->elementEnd('dd');
799 * Return last modified, if applicable.
803 * @return string last modified http header
805 function lastModified()
807 // For comparison with If-Last-Modified
808 // If not applicable, return null
813 * Return etag, if applicable.
817 * @return string etag http header
825 * Return true if read only.
829 * @param array $args other arguments
831 * @return boolean is read only action?
834 function isReadOnly($args)
840 * Returns query argument or default value if not found
842 * @param string $key requested argument
843 * @param string $def default value to return if $key is not provided
845 * @return boolean is read only action?
847 function arg($key, $def=null)
849 if (array_key_exists($key, $this->args)) {
850 return $this->args[$key];
857 * Returns trimmed query argument or default value if not found
859 * @param string $key requested argument
860 * @param string $def default value to return if $key is not provided
862 * @return boolean is read only action?
864 function trimmed($key, $def=null)
866 $arg = $this->arg($key, $def);
867 return is_string($arg) ? trim($arg) : $arg;
873 * @param array $argarray is ignored since it's now passed in in prepare()
875 * @return boolean is read only action?
877 function handle($argarray=null)
879 header('Vary: Accept-Encoding,Cookie');
880 $lm = $this->lastModified();
881 $etag = $this->etag();
883 header('ETag: ' . $etag);
886 header('Last-Modified: ' . date(DATE_RFC1123, $lm));
887 if (array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
888 $if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
889 $ims = strtotime($if_modified_since);
891 $if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
892 $_SERVER['HTTP_IF_NONE_MATCH'] : null;
893 if (!$if_none_match ||
895 $this->_hasEtag($etag, $if_none_match)) {
896 header('HTTP/1.1 304 Not Modified');
897 // Better way to do this?
906 * HasĀ etag? (private)
908 * @param string $etag etag http header
909 * @param string $if_none_match ifNoneMatch http header
914 function _hasEtag($etag, $if_none_match)
916 $etags = explode(',', $if_none_match);
917 return in_array($etag, $etags) || in_array('*', $etags);
921 * Boolean understands english (yes, no, true, false)
923 * @param string $key query key we're interested in
924 * @param string $def default value
926 * @return boolean interprets yes/no strings as boolean
928 function boolean($key, $def=false)
930 $arg = strtolower($this->trimmed($key));
934 } else if (in_array($arg, array('true', 'yes', '1'))) {
936 } else if (in_array($arg, array('false', 'no', '0'))) {
946 * @param string $msg error message to display
947 * @param integer $code http error code, 500 by default
952 function serverError($msg, $code=500)
954 $action = $this->trimmed('action');
955 common_debug("Server error '$code' on '$action': $msg", __FILE__);
956 throw new ServerException($msg, $code);
962 * @param string $msg error message to display
963 * @param integer $code http error code, 400 by default
968 function clientError($msg, $code=400)
970 $action = $this->trimmed('action');
971 common_debug("User error '$code' on '$action': $msg", __FILE__);
972 throw new ClientException($msg, $code);
976 * Returns the current URL
978 * @return string current URL
983 $action = $this->trimmed('action');
985 unset($args['action']);
986 if (common_config('site', 'fancy')) {
989 if (array_key_exists('submit', $args)) {
990 unset($args['submit']);
992 foreach (array_keys($_COOKIE) as $cookie) {
993 unset($args[$cookie]);
996 return common_local_url($action, $args);
1000 * Generate a menu item
1002 * @param string $url menu URL
1003 * @param string $text menu name
1004 * @param string $title title attribute, null by default
1005 * @param boolean $is_selected current menu item, false by default
1006 * @param string $id element id, null by default
1010 function menuItem($url, $text, $title=null, $is_selected=false, $id=null)
1012 // Added @id to li for some control.
1013 // XXX: We might want to move this to htmloutputter.php
1016 $lattrs['class'] = 'current';
1019 (is_null($id)) ? $lattrs : $lattrs['id'] = $id;
1021 $this->elementStart('li', $lattrs);
1022 $attrs['href'] = $url;
1024 $attrs['title'] = $title;
1026 $this->element('a', $attrs, $text);
1027 $this->elementEnd('li');
1031 * Generate pagination links
1033 * @param boolean $have_before is there something before?
1034 * @param boolean $have_after is there something after?
1035 * @param integer $page current page
1036 * @param string $action current action
1037 * @param array $args rest of query arguments
1041 function pagination($have_before, $have_after, $page, $action, $args=null)
1043 // Does a little before-after block for next/prev page
1044 if ($have_before || $have_after) {
1045 $this->elementStart('div', array('class' => 'pagination'));
1046 $this->elementStart('dl', null);
1047 $this->element('dt', null, _('Pagination'));
1048 $this->elementStart('dd', null);
1049 $this->elementStart('ul', array('class' => 'nav'));
1052 $pargs = array('page' => $page-1);
1053 $this->elementStart('li', array('class' => 'nav_prev'));
1054 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1057 $this->elementEnd('li');
1060 $pargs = array('page' => $page+1);
1061 $this->elementStart('li', array('class' => 'nav_next'));
1062 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1065 $this->elementEnd('li');
1067 if ($have_before || $have_after) {
1068 $this->elementEnd('ul');
1069 $this->elementEnd('dd');
1070 $this->elementEnd('dl');
1071 $this->elementEnd('div');
1076 * An array of feeds for this action.
1078 * Returns an array of potential feeds for this action.
1080 * @return array Feed object to show in head and links
1089 * A design for this action
1091 * @return Design a design object to use
1094 function getDesign()
1096 return Design::siteDesign();