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('GNUSOCIAL')) { exit(1); }
34 * Base class for all actions
36 * This is the base class for all actions in the package. An action is
37 * more or less a "view" in an MVC framework.
39 * Actions are responsible for extracting and validating parameters; using
40 * model classes to read and write to the database; and doing ouput.
44 * @author Evan Prodromou <evan@status.net>
45 * @author Sarven Capadisli <csarven@status.net>
46 * @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
47 * @link http://status.net/
51 class Action extends HTMLOutputter // lawsuit
53 // This should be protected/private in the future
54 public $args = array();
56 // Action properties, set per-class
57 protected $action = false;
58 protected $ajax = false;
59 protected $menus = true;
60 protected $needLogin = false;
61 protected $needPost = false; // implies canPost if true
62 protected $canPost = false; // can this action handle POST method?
64 // The currently scoped profile (normally Profile::current; from $this->auth_user for API)
65 protected $scoped = null;
67 // Related to front-end user representation
68 protected $format = null;
69 protected $error = null;
70 protected $msg = null;
75 * Just wraps the HTMLOutputter constructor.
77 * @param string $output URI to output to, default = stdout
78 * @param boolean $indent Whether to indent output, default true
80 * @see XMLOutputter::__construct
81 * @see HTMLOutputter::__construct
83 function __construct($output='php://output', $indent=null)
85 parent::__construct($output, $indent);
98 static public function run(array $args=array(), $output='php://output', $indent=null) {
99 $class = get_called_class();
100 $action = new $class($output, $indent);
101 $action->execute($args);
105 public function execute(array $args=array()) {
107 if (common_config('db', 'mirror') && $this->isReadOnly($args)) {
108 if (is_array(common_config('db', 'mirror'))) {
109 // "load balancing", ha ha
110 $arr = common_config('db', 'mirror');
111 $k = array_rand($arr);
114 $mirror = common_config('db', 'mirror');
117 // everyone else uses the mirror
118 common_config_set('db', 'database', $mirror);
121 $status = $this->prepare($args);
123 $this->handle($args);
125 common_debug('Prepare failed for Action.');
130 Event::handle('EndActionExecute', array($status, $this));
134 * For initializing members of the class.
136 * @param array $argarray misc. arguments
138 * @return boolean true
140 protected function prepare(array $args=array())
142 if ($this->needPost && !$this->isPost()) {
143 // TRANS: Client error. POST is a HTTP command. It should not be translated.
144 $this->clientError(_('This method requires a POST.'), 405);
147 // needPost, of course, overrides canPost if true
148 if (!$this->canPost) {
149 $this->canPost = $this->needPost;
152 $this->args = common_copy_args($args);
154 // This could be set with get_called_action and then
155 // chop off 'Action' from the class name. In lower case.
156 $this->action = strtolower($this->trimmed('action'));
158 if ($this->ajax || $this->boolean('ajax')) {
159 // check with StatusNet::isAjax()
160 StatusNet::setAjax(true);
163 if ($this->needLogin) {
164 $this->checkLogin(); // if not logged in, this redirs/excepts
167 $this->updateScopedProfile();
172 public function updateScopedProfile()
174 $this->scoped = Profile::current();
175 return $this->scoped;
178 public function getScoped()
180 return ($this->scoped instanceof Profile) ? $this->scoped : null;
183 // Must be run _after_ prepare
184 public function getActionName()
186 return $this->action;
189 public function isAction(array $names)
191 foreach ($names as $class) {
192 // PHP is case insensitive, and we have stuff like ApiUpperCaseAction,
193 // but we at least make a point out of wanting to do stuff case-sensitive.
194 $class = ucfirst($class) . 'Action';
195 if ($this instanceof $class) {
203 * Show page, a template method.
209 if (Event::handle('StartShowHTML', array($this))) {
212 Event::handle('EndShowHTML', array($this));
214 if (Event::handle('StartShowHead', array($this))) {
217 Event::handle('EndShowHead', array($this));
219 if (Event::handle('StartShowBody', array($this))) {
221 Event::handle('EndShowBody', array($this));
223 if (Event::handle('StartEndHTML', array($this))) {
225 Event::handle('EndEndHTML', array($this));
233 if (isset($_startTime)) {
234 $endTime = microtime(true);
235 $diff = round(($endTime - $_startTime) * 1000);
236 $this->raw("<!-- ${diff}ms -->");
239 return parent::endHTML();
243 * Show head, a template method.
249 // XXX: attributes (profile?)
250 $this->elementStart('head');
251 if (Event::handle('StartShowHeadElements', array($this))) {
252 if (Event::handle('StartShowHeadTitle', array($this))) {
254 Event::handle('EndShowHeadTitle', array($this));
256 $this->showShortcutIcon();
257 $this->showStylesheets();
258 $this->showOpenSearch();
260 $this->showDescription();
262 Event::handle('EndShowHeadElements', array($this));
264 $this->elementEnd('head');
268 * Show title, a template method.
274 $this->element('title', null,
275 // TRANS: Page title. %1$s is the title, %2$s is the site name.
276 sprintf(_('%1$s - %2$s'),
278 common_config('site', 'name')));
282 * Returns the page title
286 * @return string page title
291 // TRANS: Page title for a page without a title set.
292 return _('Untitled page');
296 * Show themed shortcut icon
300 function showShortcutIcon()
302 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/favicon.ico')) {
303 $this->element('link', array('rel' => 'shortcut icon',
304 'href' => Theme::path('favicon.ico')));
306 // favicon.ico should be HTTPS if the rest of the page is
307 $this->element('link', array('rel' => 'shortcut icon',
308 'href' => common_path('favicon.ico', StatusNet::isHTTPS())));
311 if (common_config('site', 'mobile')) {
312 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
313 $this->element('link', array('rel' => 'apple-touch-icon',
314 'href' => Theme::path('apple-touch-icon.png')));
316 $this->element('link', array('rel' => 'apple-touch-icon',
317 'href' => common_path('apple-touch-icon.png')));
327 function showStylesheets()
329 if (Event::handle('StartShowStyles', array($this))) {
331 // Use old name for StatusNet for compatibility on events
333 if (Event::handle('StartShowStylesheets', array($this))) {
334 $this->primaryCssLink(null, 'screen, projection, tv, print');
335 Event::handle('EndShowStylesheets', array($this));
338 $this->cssLink('js/extlib/jquery-ui/css/smoothness/jquery-ui.css');
340 if (Event::handle('StartShowUAStyles', array($this))) {
341 Event::handle('EndShowUAStyles', array($this));
344 Event::handle('EndShowStyles', array($this));
346 if (common_config('custom_css', 'enabled')) {
347 $css = common_config('custom_css', 'css');
348 if (Event::handle('StartShowCustomCss', array($this, &$css))) {
349 if (trim($css) != '') {
352 Event::handle('EndShowCustomCss', array($this));
358 function primaryCssLink($mainTheme=null, $media=null)
360 $theme = new Theme($mainTheme);
362 // Some themes may have external stylesheets, such as using the
363 // Google Font APIs to load webfonts.
364 foreach ($theme->getExternals() as $url) {
365 $this->cssLink($url, $mainTheme, $media);
368 // If the currently-selected theme has dependencies on other themes,
369 // we'll need to load their display.css files as well in order.
370 $baseThemes = $theme->getDeps();
371 foreach ($baseThemes as $baseTheme) {
372 $this->cssLink('css/display.css', $baseTheme, $media);
374 $this->cssLink('css/display.css', $mainTheme, $media);
376 // Additional styles for RTL languages
377 if (is_rtl(common_language())) {
378 if (file_exists(Theme::file('css/rtl.css'))) {
379 $this->cssLink('css/rtl.css', $mainTheme, $media);
385 * Show javascript headers
389 function showScripts()
391 if (Event::handle('StartShowScripts', array($this))) {
392 if (Event::handle('StartShowJQueryScripts', array($this))) {
393 $this->script('extlib/jquery.js');
394 $this->script('extlib/jquery.form.js');
395 $this->script('extlib/jquery-ui/jquery-ui.js');
396 $this->script('extlib/jquery.cookie.js');
397 $this->inlineScript('if (typeof window.JSON !== "object") { $.getScript("'.common_path('js/extlib/json2.js', StatusNet::isHTTPS()).'"); }');
398 $this->script('extlib/jquery.infieldlabel.js');
400 Event::handle('EndShowJQueryScripts', array($this));
402 if (Event::handle('StartShowStatusNetScripts', array($this))) {
403 $this->script('util.js');
404 $this->script('xbImportNode.js');
405 $this->script('geometa.js');
407 // This route isn't available in single-user mode.
408 // Not sure why, but it causes errors here.
409 $this->inlineScript('var _peopletagAC = "' .
410 common_local_url('peopletagautocomplete') . '";');
411 $this->showScriptMessages();
412 // Anti-framing code to avoid clickjacking attacks in older browsers.
413 // This will show a blank page if the page is being framed, which is
414 // consistent with the behavior of the 'X-Frame-Options: SAMEORIGIN'
415 // header, which prevents framing in newer browser.
416 if (common_config('javascript', 'bustframes')) {
417 $this->inlineScript('if (window.top !== window.self) { document.write = ""; window.top.location = window.self.location; setTimeout(function () { document.body.innerHTML = ""; }, 1); window.self.onload = function () { document.body.innerHTML = ""; }; }');
419 Event::handle('EndShowStatusNetScripts', array($this));
421 Event::handle('EndShowScripts', array($this));
426 * Exports a map of localized text strings to JavaScript code.
428 * Plugins can add to what's exported by hooking the StartScriptMessages or EndScriptMessages
429 * events and appending to the array. Try to avoid adding strings that won't be used, as
430 * they'll be added to HTML output.
432 function showScriptMessages()
436 if (Event::handle('StartScriptMessages', array($this, &$messages))) {
437 // Common messages needed for timeline views etc...
439 // TRANS: Localized tooltip for '...' expansion button on overlong remote messages.
440 $messages['showmore_tooltip'] = _m('TOOLTIP', 'Show more');
442 // TRANS: Inline reply form submit button: submits a reply comment.
443 $messages['reply_submit'] = _m('BUTTON', 'Reply');
445 // TRANS: Placeholder text for inline reply form. Clicking in this box will turn it into a mini notice form.
446 $messages['reply_placeholder'] = _m('Write a reply...');
448 $messages = array_merge($messages, $this->getScriptMessages());
450 Event::handle('EndScriptMessages', array($this, &$messages));
453 if (!empty($messages)) {
454 $this->inlineScript('SN.messages=' . json_encode($messages));
461 * If the action will need localizable text strings, export them here like so:
463 * return array('pool_deepend' => _('Deep end'),
464 * 'pool_shallow' => _('Shallow end'));
466 * The exported map will be available via SN.msg() to JS code:
468 * $('#pool').html('<div class="deepend"></div><div class="shallow"></div>');
469 * $('#pool .deepend').text(SN.msg('pool_deepend'));
470 * $('#pool .shallow').text(SN.msg('pool_shallow'));
472 * Exports a map of localized text strings to JavaScript code.
474 * Plugins can add to what's exported on any action by hooking the StartScriptMessages or
475 * EndScriptMessages events and appending to the array. Try to avoid adding strings that won't
476 * be used, as they'll be added to HTML output.
478 function getScriptMessages()
484 * Show OpenSearch headers
488 function showOpenSearch()
490 $this->element('link', array('rel' => 'search',
491 'type' => 'application/opensearchdescription+xml',
492 'href' => common_local_url('opensearch', array('type' => 'people')),
493 'title' => common_config('site', 'name').' People Search'));
494 $this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
495 'href' => common_local_url('opensearch', array('type' => 'notice')),
496 'title' => common_config('site', 'name').' Notice Search'));
508 $feeds = $this->getFeeds();
511 foreach ($feeds as $feed) {
512 $this->element('link', array('rel' => $feed->rel(),
513 'href' => $feed->url,
514 'type' => $feed->mimeType(),
515 'title' => $feed->title));
527 function showDescription()
529 // does nothing by default
533 * Show extra stuff in <head>.
541 // does nothing by default
547 * Calls template methods
553 $params = array('id' => $this->getActionName());
554 if ($this->scoped instanceof Profile) {
555 $params['class'] = 'user_in';
557 $this->elementStart('body', $params);
558 $this->elementStart('div', array('id' => 'wrap'));
559 if (Event::handle('StartShowHeader', array($this))) {
562 Event::handle('EndShowHeader', array($this));
566 if (Event::handle('StartShowFooter', array($this))) {
569 Event::handle('EndShowFooter', array($this));
571 $this->elementEnd('div');
572 $this->showScripts();
573 $this->elementEnd('body');
577 * Show header of the page.
579 * Calls template methods
583 function showHeader()
585 $this->elementStart('div', array('id' => 'header'));
587 $this->showPrimaryNav();
588 if (Event::handle('StartShowSiteNotice', array($this))) {
589 $this->showSiteNotice();
591 Event::handle('EndShowSiteNotice', array($this));
594 $this->elementEnd('div');
598 * Show configured logo.
604 $this->elementStart('address', array('id' => 'site_contact', 'class' => 'h-card'));
605 if (Event::handle('StartAddressData', array($this))) {
606 if (common_config('singleuser', 'enabled')) {
607 $user = User::singleUser();
608 $url = common_local_url('showstream',
609 array('nickname' => $user->nickname));
610 } else if (common_logged_in()) {
611 $cur = common_current_user();
612 $url = common_local_url('all', array('nickname' => $cur->nickname));
614 $url = common_local_url('public');
617 $this->elementStart('a', array('class' => 'home bookmark',
620 if (StatusNet::isHTTPS()) {
621 $logoUrl = common_config('site', 'ssllogo');
622 if (empty($logoUrl)) {
623 // if logo is an uploaded file, try to fall back to HTTPS file URL
624 $httpUrl = common_config('site', 'logo');
625 if (!empty($httpUrl)) {
626 $f = File::getKV('url', $httpUrl);
627 if (!empty($f) && !empty($f->filename)) {
628 // this will handle the HTTPS case
629 $logoUrl = File::url($f->filename);
634 $logoUrl = common_config('site', 'logo');
637 if (empty($logoUrl) && file_exists(Theme::file('logo.png'))) {
638 // This should handle the HTTPS case internally
639 $logoUrl = Theme::path('logo.png');
642 if (!empty($logoUrl)) {
643 $this->element('img', array('class' => 'logo u-photo p-name',
645 'alt' => common_config('site', 'name')));
648 $this->elementEnd('a');
650 Event::handle('EndAddressData', array($this));
652 $this->elementEnd('address');
656 * Show primary navigation.
660 function showPrimaryNav()
662 $this->elementStart('div', array('id' => 'site_nav_global_primary'));
664 $user = common_current_user();
666 if (!empty($user) || !common_config('site', 'private')) {
667 $form = new SearchForm($this);
671 $pn = new PrimaryNav($this);
673 $this->elementEnd('div');
681 function showSiteNotice()
683 // Revist. Should probably do an hAtom pattern here
684 $text = common_config('site', 'notice');
686 $this->elementStart('div', array('id' => 'site_notice',
687 'class' => 'system_notice'));
689 $this->elementEnd('div');
696 * MAY overload if no notice form needed... or direct message box????
700 function showNoticeForm()
702 // TRANS: Tab on the notice form.
703 $tabs = array('status' => array('title' => _m('TAB','Status'),
704 'href' => common_local_url('newnotice')));
706 $this->elementStart('div', 'input_forms');
708 if (Event::handle('StartShowEntryForms', array(&$tabs))) {
709 $this->elementStart('ul', array('class' => 'nav',
710 'id' => 'input_form_nav'));
712 foreach ($tabs as $tag => $data) {
713 $tag = htmlspecialchars($tag);
714 $attrs = array('id' => 'input_form_nav_'.$tag,
715 'class' => 'input_form_nav_tab');
717 if ($tag == 'status') {
718 // We're actually showing the placeholder form,
719 // but we special-case the 'Status' tab as if
720 // it were a small version of it.
721 $attrs['class'] .= ' current';
723 $this->elementStart('li', $attrs);
726 array('onclick' => 'return SN.U.switchInputFormTab("'.$tag.'");',
727 'href' => $data['href']),
729 $this->elementEnd('li');
732 $this->elementEnd('ul');
734 $attrs = array('class' => 'input_form current',
735 'id' => 'input_form_placeholder');
736 $this->elementStart('div', $attrs);
737 $form = new NoticePlaceholderForm($this);
739 $this->elementEnd('div');
741 foreach ($tabs as $tag => $data) {
742 $attrs = array('class' => 'input_form',
743 'id' => 'input_form_'.$tag);
745 $this->elementStart('div', $attrs);
749 if (Event::handle('StartMakeEntryForm', array($tag, $this, &$form))) {
750 if ($tag == 'status') {
751 $options = $this->noticeFormOptions();
752 $form = new NoticeForm($this, $options);
754 Event::handle('EndMakeEntryForm', array($tag, $this, $form));
761 $this->elementEnd('div');
765 $this->elementEnd('div');
768 function noticeFormOptions()
774 * Show anonymous message.
780 function showAnonymousMessage()
782 // needs to be defined by the class
788 * Shows local navigation, content block and aside.
794 $this->elementStart('div', array('id' => 'core'));
795 $this->elementStart('div', array('id' => 'aside_primary_wrapper'));
796 $this->elementStart('div', array('id' => 'content_wrapper'));
797 $this->elementStart('div', array('id' => 'site_nav_local_views_wrapper'));
798 if (Event::handle('StartShowLocalNavBlock', array($this))) {
799 $this->showLocalNavBlock();
801 Event::handle('EndShowLocalNavBlock', array($this));
803 if (Event::handle('StartShowContentBlock', array($this))) {
804 $this->showContentBlock();
806 Event::handle('EndShowContentBlock', array($this));
808 if (Event::handle('StartShowAside', array($this))) {
811 Event::handle('EndShowAside', array($this));
813 $this->elementEnd('div');
814 $this->elementEnd('div');
815 $this->elementEnd('div');
816 $this->elementEnd('div');
820 * Show local navigation block.
824 function showLocalNavBlock()
826 // Need to have this ID for CSS; I'm too lazy to add it to
828 $this->elementStart('div', array('id' => 'site_nav_local_views'));
829 // Cheat cheat cheat!
830 $this->showLocalNav();
831 $this->elementEnd('div');
835 * If there's a logged-in user, show a bit of login context
839 function showProfileBlock()
841 if (common_logged_in()) {
842 $block = new DefaultProfileBlock($this);
848 * Show local navigation.
854 function showLocalNav()
856 $nav = new DefaultLocalNav($this);
861 * Show menu for an object (group, profile)
863 * This block will only show if a subclass has overridden
864 * the showObjectNav() method.
868 function showObjectNavBlock()
870 $rmethod = new ReflectionMethod($this, 'showObjectNav');
871 $dclass = $rmethod->getDeclaringClass()->getName();
873 if ($dclass != 'Action') {
874 // Need to have this ID for CSS; I'm too lazy to add it to
876 $this->elementStart('div', array('id' => 'site_nav_object',
877 'class' => 'section'));
878 $this->showObjectNav();
879 $this->elementEnd('div');
884 * Show object navigation.
886 * If there are things to do with this object, show it here.
890 function showObjectNav()
896 * Show content block.
900 function showContentBlock()
902 $this->elementStart('div', array('id' => 'content'));
903 if (common_logged_in()) {
904 if (Event::handle('StartShowNoticeForm', array($this))) {
905 $this->showNoticeForm();
906 Event::handle('EndShowNoticeForm', array($this));
909 if (Event::handle('StartShowPageTitle', array($this))) {
910 $this->showPageTitle();
911 Event::handle('EndShowPageTitle', array($this));
913 $this->showPageNoticeBlock();
914 $this->elementStart('div', array('id' => 'content_inner'));
915 // show the actual content (forms, lists, whatever)
916 $this->showContent();
917 $this->elementEnd('div');
918 $this->elementEnd('div');
926 function showPageTitle()
928 $this->element('h1', null, $this->title());
932 * Show page notice block.
934 * Only show the block if a subclassed action has overrided
935 * Action::showPageNotice(), or an event handler is registered for
936 * the StartShowPageNotice event, in which case we assume the
937 * 'page_notice' definition list is desired. This is to prevent
938 * empty 'page_notice' definition lists from being output everywhere.
942 function showPageNoticeBlock()
944 $rmethod = new ReflectionMethod($this, 'showPageNotice');
945 $dclass = $rmethod->getDeclaringClass()->getName();
947 if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
949 $this->elementStart('div', array('id' => 'page_notice',
950 'class' => 'system_notice'));
951 if (Event::handle('StartShowPageNotice', array($this))) {
952 $this->showPageNotice();
953 Event::handle('EndShowPageNotice', array($this));
955 $this->elementEnd('div');
962 * SHOULD overload (unless there's not a notice)
966 function showPageNotice()
973 * MUST overload (unless there's not a notice)
977 protected function showContent()
988 $this->elementStart('div', array('id' => 'aside_primary',
989 'class' => 'aside'));
990 $this->showProfileBlock();
991 if (Event::handle('StartShowObjectNavBlock', array($this))) {
992 $this->showObjectNavBlock();
993 Event::handle('EndShowObjectNavBlock', array($this));
995 if (Event::handle('StartShowSections', array($this))) {
996 $this->showSections();
997 Event::handle('EndShowSections', array($this));
999 if (Event::handle('StartShowExportData', array($this))) {
1000 $this->showExportData();
1001 Event::handle('EndShowExportData', array($this));
1003 $this->elementEnd('div');
1007 * Show export data feeds.
1011 function showExportData()
1013 $feeds = $this->getFeeds();
1015 $fl = new FeedList($this);
1027 function showSections()
1029 // for each section, show it
1037 function showFooter()
1039 $this->elementStart('div', array('id' => 'footer'));
1040 if (Event::handle('StartShowInsideFooter', array($this))) {
1041 $this->showSecondaryNav();
1042 $this->showLicenses();
1043 Event::handle('EndShowInsideFooter', array($this));
1045 $this->elementEnd('div');
1049 * Show secondary navigation.
1053 function showSecondaryNav()
1055 $sn = new SecondaryNav($this);
1064 function showLicenses()
1066 $this->showGNUsocialLicense();
1067 $this->showContentLicense();
1071 * Show GNU social license.
1075 function showGNUsocialLicense()
1077 if (common_config('site', 'broughtby')) {
1078 // TRANS: First sentence of the GNU social site license. Used if 'broughtby' is set.
1079 // TRANS: Text between [] is a link description, text between () is the link itself.
1080 // TRANS: Make sure there is no whitespace between "]" and "(".
1081 // TRANS: "%%site.broughtby%%" is the value of the variable site.broughtby
1082 $instr = _('**%%site.name%%** is a social network, courtesy of [%%site.broughtby%%](%%site.broughtbyurl%%).');
1084 // TRANS: First sentence of the GNU social site license. Used if 'broughtby' is not set.
1085 $instr = _('**%%site.name%%** is a social network.');
1088 // TRANS: Second sentence of the GNU social site license. Mentions the GNU social source code license.
1089 // TRANS: Make sure there is no whitespace between "]" and "(".
1090 // TRANS: [%1$s](%2$s) is a link description followed by the link itself
1091 // TRANS: %3$s is the version of GNU social that is being used.
1092 $instr .= sprintf(_('It runs on [%1$s](%2$s), version %3$s, available under the [GNU Affero General Public License](http://www.fsf.org/licensing/licenses/agpl-3.0.html).'), GNUSOCIAL_ENGINE, GNUSOCIAL_ENGINE_URL, GNUSOCIAL_VERSION);
1093 $output = common_markup_to_html($instr);
1094 $this->raw($output);
1099 * Show content license.
1103 function showContentLicense()
1105 if (Event::handle('StartShowContentLicense', array($this))) {
1106 switch (common_config('license', 'type')) {
1108 // TRANS: Content license displayed when license is set to 'private'.
1109 // TRANS: %1$s is the site name.
1110 $this->element('p', null, sprintf(_('Content and data of %1$s are private and confidential.'),
1111 common_config('site', 'name')));
1113 case 'allrightsreserved':
1114 if (common_config('license', 'owner')) {
1115 // TRANS: Content license displayed when license is set to 'allrightsreserved'.
1116 // TRANS: %1$s is the copyright owner.
1117 $this->element('p', null, sprintf(_('Content and data copyright by %1$s. All rights reserved.'),
1118 common_config('license', 'owner')));
1120 // TRANS: Content license displayed when license is set to 'allrightsreserved' and no owner is set.
1121 $this->element('p', null, _('Content and data copyright by contributors. All rights reserved.'));
1124 case 'cc': // fall through
1126 $this->elementStart('p');
1128 $image = common_config('license', 'image');
1129 $sslimage = common_config('license', 'sslimage');
1131 if (StatusNet::isHTTPS()) {
1132 if (!empty($sslimage)) {
1134 } else if (preg_match('#^http://i.creativecommons.org/#', $image)) {
1135 // CC support HTTPS on their images
1136 $url = preg_replace('/^http/', 'https', $image);
1138 // Better to show mixed content than no content
1145 $this->element('img', array('id' => 'license_cc',
1147 'alt' => common_config('license', 'title'),
1151 // TRANS: license message in footer.
1152 // TRANS: %1$s is the site name, %2$s is a link to the license URL, with a licence name set in configuration.
1153 $notice = _('All %1$s content and data are available under the %2$s license.');
1154 $link = "<a class=\"license\" rel=\"external license\" href=\"" .
1155 htmlspecialchars(common_config('license', 'url')) .
1157 htmlspecialchars(common_config('license', 'title')) .
1159 $this->raw(sprintf(htmlspecialchars($notice),
1160 htmlspecialchars(common_config('site', 'name')),
1162 $this->elementEnd('p');
1166 Event::handle('EndShowContentLicense', array($this));
1171 * Return last modified, if applicable.
1175 * @return string last modified http header
1177 function lastModified()
1179 // For comparison with If-Last-Modified
1180 // If not applicable, return null
1185 * Return etag, if applicable.
1189 * @return string etag http header
1197 * Return true if read only.
1201 * @param array $args other arguments
1203 * @return boolean is read only action?
1205 function isReadOnly($args)
1211 * Returns query argument or default value if not found
1213 * @param string $key requested argument
1214 * @param string $def default value to return if $key is not provided
1216 * @return boolean is read only action?
1218 function arg($key, $def=null)
1220 if (array_key_exists($key, $this->args)) {
1221 return $this->args[$key];
1228 * Returns trimmed query argument or default value if not found
1230 * @param string $key requested argument
1231 * @param string $def default value to return if $key is not provided
1233 * @return boolean is read only action?
1235 function trimmed($key, $def=null)
1237 $arg = $this->arg($key, $def);
1238 return is_string($arg) ? trim($arg) : $arg;
1244 * @return boolean is read only action?
1246 protected function handle()
1248 header('Vary: Accept-Encoding,Cookie');
1250 $lm = $this->lastModified();
1251 $etag = $this->etag();
1254 header('ETag: ' . $etag);
1258 header('Last-Modified: ' . date(DATE_RFC1123, $lm));
1259 if ($this->isCacheable()) {
1260 header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
1261 header( "Cache-Control: private, must-revalidate, max-age=0" );
1268 $if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
1269 $_SERVER['HTTP_IF_NONE_MATCH'] : null;
1270 if ($if_none_match) {
1271 // If this check fails, ignore the if-modified-since below.
1273 if ($this->_hasEtag($etag, $if_none_match)) {
1274 header('HTTP/1.1 304 Not Modified');
1275 // Better way to do this?
1281 if (!$checked && $lm && array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
1282 $if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
1283 $ims = strtotime($if_modified_since);
1285 header('HTTP/1.1 304 Not Modified');
1286 // Better way to do this?
1293 * Is this action cacheable?
1295 * If the action returns a last-modified
1297 * @param array $argarray is ignored since it's now passed in in prepare()
1299 * @return boolean is read only action?
1301 function isCacheable()
1307 * Has etag? (private)
1309 * @param string $etag etag http header
1310 * @param string $if_none_match ifNoneMatch http header
1314 function _hasEtag($etag, $if_none_match)
1316 $etags = explode(',', $if_none_match);
1317 return in_array($etag, $etags) || in_array('*', $etags);
1321 * Boolean understands english (yes, no, true, false)
1323 * @param string $key query key we're interested in
1324 * @param string $def default value
1326 * @return boolean interprets yes/no strings as boolean
1328 function boolean($key, $def=false)
1330 $arg = strtolower($this->trimmed($key));
1332 if (is_null($arg)) {
1334 } else if (in_array($arg, array('true', 'yes', '1', 'on'))) {
1336 } else if (in_array($arg, array('false', 'no', '0'))) {
1344 * Integer value of an argument
1346 * @param string $key query key we're interested in
1347 * @param string $defValue optional default value (default null)
1348 * @param string $maxValue optional max value (default null)
1349 * @param string $minValue optional min value (default null)
1351 * @return integer integer value
1353 function int($key, $defValue=null, $maxValue=null, $minValue=null)
1355 $arg = intval($this->arg($key));
1357 if (!is_numeric($this->arg($key)) || $arg != $this->arg($key)) {
1361 if (!is_null($maxValue)) {
1362 $arg = min($arg, $maxValue);
1365 if (!is_null($minValue)) {
1366 $arg = max($arg, $minValue);
1375 * @param string $msg error message to display
1376 * @param integer $code http error code, 500 by default
1380 function serverError($msg, $code=500, $format=null)
1382 if ($format === null) {
1383 $format = $this->format;
1386 common_debug("Server error '{$code}' on '{$this->action}': {$msg}", __FILE__);
1388 if (!array_key_exists($code, ServerErrorAction::$status)) {
1392 $status_string = ServerErrorAction::$status[$code];
1396 header("HTTP/1.1 {$code} {$status_string}");
1397 $this->initDocument('xml');
1398 $this->elementStart('hash');
1399 $this->element('error', null, $msg);
1400 $this->element('request', null, $_SERVER['REQUEST_URI']);
1401 $this->elementEnd('hash');
1402 $this->endDocument('xml');
1405 if (!isset($this->callback)) {
1406 header("HTTP/1.1 {$code} {$status_string}");
1408 $this->initDocument('json');
1409 $error_array = array('error' => $msg, 'request' => $_SERVER['REQUEST_URI']);
1410 print(json_encode($error_array));
1411 $this->endDocument('json');
1414 throw new ServerException($msg, $code);
1423 * @param string $msg error message to display
1424 * @param integer $code http error code, 400 by default
1425 * @param string $format error format (json, xml, text) for ApiAction
1428 * @throws ClientException always
1430 function clientError($msg, $code=400, $format=null)
1432 // $format is currently only relevant for an ApiAction anyway
1433 if ($format === null) {
1434 $format = $this->format;
1437 common_debug("User error '{$code}' on '{$this->action}': {$msg}", __FILE__);
1439 if (!array_key_exists($code, ClientErrorAction::$status)) {
1443 $status_string = ClientErrorAction::$status[$code];
1447 header("HTTP/1.1 {$code} {$status_string}");
1448 $this->initDocument('xml');
1449 $this->elementStart('hash');
1450 $this->element('error', null, $msg);
1451 $this->element('request', null, $_SERVER['REQUEST_URI']);
1452 $this->elementEnd('hash');
1453 $this->endDocument('xml');
1456 if (!isset($this->callback)) {
1457 header("HTTP/1.1 {$code} {$status_string}");
1459 $this->initDocument('json');
1460 $error_array = array('error' => $msg, 'request' => $_SERVER['REQUEST_URI']);
1461 $this->text(json_encode($error_array));
1462 $this->endDocument('json');
1465 header("HTTP/1.1 {$code} {$status_string}");
1466 header('Content-Type: text/plain; charset=utf-8');
1470 throw new ClientException($msg, $code);
1476 * If not logged in, take appropriate action (redir or exception)
1478 * @param boolean $redir Redirect to login if not logged in
1480 * @return boolean true if logged in (never returns if not)
1482 public function checkLogin($redir=true)
1484 if (common_logged_in()) {
1489 common_set_returnto($_SERVER['REQUEST_URI']);
1490 common_redirect(common_local_url('login'));
1493 // TRANS: Error message displayed when trying to perform an action that requires a logged in user.
1494 $this->clientError(_('Not logged in.'), 403);
1498 * Returns the current URL
1500 * @return string current URL
1504 list($action, $args) = $this->returnToArgs();
1505 return common_local_url($action, $args);
1509 * Returns arguments sufficient for re-constructing URL
1511 * @return array two elements: action, other args
1513 function returnToArgs()
1515 $action = $this->getActionName();
1516 $args = $this->args;
1517 unset($args['action']);
1518 if (common_config('site', 'fancy')) {
1521 if (array_key_exists('submit', $args)) {
1522 unset($args['submit']);
1524 foreach (array_keys($_COOKIE) as $cookie) {
1525 unset($args[$cookie]);
1527 return array($action, $args);
1531 * Generate a menu item
1533 * @param string $url menu URL
1534 * @param string $text menu name
1535 * @param string $title title attribute, null by default
1536 * @param boolean $is_selected current menu item, false by default
1537 * @param string $id element id, null by default
1541 function menuItem($url, $text, $title=null, $is_selected=false, $id=null, $class=null)
1543 // Added @id to li for some control.
1544 // XXX: We might want to move this to htmloutputter.php
1547 if ($class !== null) {
1548 $classes[] = trim($class);
1551 $classes[] = 'current';
1554 if (!empty($classes)) {
1555 $lattrs['class'] = implode(' ', $classes);
1558 if (!is_null($id)) {
1559 $lattrs['id'] = $id;
1562 $this->elementStart('li', $lattrs);
1563 $attrs['href'] = $url;
1565 $attrs['title'] = $title;
1567 $this->element('a', $attrs, $text);
1568 $this->elementEnd('li');
1572 * Generate pagination links
1574 * @param boolean $have_before is there something before?
1575 * @param boolean $have_after is there something after?
1576 * @param integer $page current page
1577 * @param string $action current action
1578 * @param array $args rest of query arguments
1582 // XXX: The messages in this pagination method only tailor to navigating
1583 // notices. In other lists, "Previous"/"Next" type navigation is
1584 // desirable, but not available.
1585 function pagination($have_before, $have_after, $page, $action, $args=null)
1587 // Does a little before-after block for next/prev page
1588 if ($have_before || $have_after) {
1589 $this->elementStart('ul', array('class' => 'nav',
1590 'id' => 'pagination'));
1593 $pargs = array('page' => $page-1);
1594 $this->elementStart('li', array('class' => 'nav_prev'));
1595 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1597 // TRANS: Pagination message to go to a page displaying information more in the
1598 // TRANS: present than the currently displayed information.
1600 $this->elementEnd('li');
1603 $pargs = array('page' => $page+1);
1604 $this->elementStart('li', array('class' => 'nav_next'));
1605 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1607 // TRANS: Pagination message to go to a page displaying information more in the
1608 // TRANS: past than the currently displayed information.
1610 $this->elementEnd('li');
1612 if ($have_before || $have_after) {
1613 $this->elementEnd('ul');
1618 * An array of feeds for this action.
1620 * Returns an array of potential feeds for this action.
1622 * @return array Feed object to show in head and links
1630 * Check the session token.
1632 * Checks that the current form has the correct session token,
1633 * and throw an exception if it does not.
1637 // XXX: Finding this type of check with the same message about 50 times.
1638 // Possible to refactor?
1639 function checkSessionToken()
1642 $token = $this->trimmed('token');
1643 if (empty($token) || $token != common_session_token()) {
1644 // TRANS: Client error text when there is a problem with the session token.
1645 $this->clientError(_('There was a problem with your session token.'));
1650 * Check if the current request is a POST
1652 * @return boolean true if POST; otherwise false.
1657 return ($_SERVER['REQUEST_METHOD'] == 'POST');