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', $indent=null)
73 parent::__construct($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))) {
124 if (Event::handle('StartShowHeadTitle', array($this))) {
126 Event::handle('EndShowHeadTitle', array($this));
128 $this->showShortcutIcon();
129 $this->showStylesheets();
130 $this->showOpenSearch();
132 $this->showDescription();
134 Event::handle('EndShowHeadElements', array($this));
136 $this->elementEnd('head');
140 * Show title, a template method.
146 $this->element('title', null,
147 // TRANS: Page title. %1$s is the title, %2$s is the site name.
148 sprintf(_("%1\$s - %2\$s"),
150 common_config('site', 'name')));
154 * Returns the page title
158 * @return string page title
163 // TRANS: Page title for a page without a title set.
164 return _("Untitled page");
168 * Show themed shortcut icon
172 function showShortcutIcon()
174 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/favicon.ico')) {
175 $this->element('link', array('rel' => 'shortcut icon',
176 'href' => Theme::path('favicon.ico')));
178 // favicon.ico should be HTTPS if the rest of the page is
179 $this->element('link', array('rel' => 'shortcut icon',
180 'href' => common_path('favicon.ico', StatusNet::isHTTPS())));
183 if (common_config('site', 'mobile')) {
184 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
185 $this->element('link', array('rel' => 'apple-touch-icon',
186 'href' => Theme::path('apple-touch-icon.png')));
188 $this->element('link', array('rel' => 'apple-touch-icon',
189 'href' => common_path('apple-touch-icon.png')));
199 function showStylesheets()
201 if (Event::handle('StartShowStyles', array($this))) {
203 // Use old name for StatusNet for compatibility on events
205 if (Event::handle('StartShowStatusNetStyles', array($this)) &&
206 Event::handle('StartShowLaconicaStyles', array($this))) {
207 $this->primaryCssLink(null, 'screen, projection, tv, print');
208 Event::handle('EndShowStatusNetStyles', array($this));
209 Event::handle('EndShowLaconicaStyles', array($this));
212 if (Event::handle('StartShowUAStyles', array($this))) {
213 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
214 'href="'.Theme::path('css/ie.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
215 foreach (array(6,7) as $ver) {
216 if (file_exists(Theme::file('css/ie'.$ver.'.css', 'base'))) {
217 // Yes, IE people should be put in jail.
218 $this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
219 'href="'.Theme::path('css/ie'.$ver.'.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
222 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
223 'href="'.Theme::path('css/ie.css', null).'?version='.STATUSNET_VERSION.'" /><![endif]');
224 Event::handle('EndShowUAStyles', array($this));
227 if (Event::handle('StartShowDesign', array($this))) {
229 $user = common_current_user();
231 if (empty($user) || $user->viewdesigns) {
232 $design = $this->getDesign();
234 if (!empty($design)) {
235 $design->showCSS($this);
239 Event::handle('EndShowDesign', array($this));
241 Event::handle('EndShowStyles', array($this));
243 if (common_config('custom_css', 'enabled')) {
244 $css = common_config('custom_css', 'css');
245 if (Event::handle('StartShowCustomCss', array($this, &$css))) {
246 if (trim($css) != '') {
249 Event::handle('EndShowCustomCss', array($this));
255 function primaryCssLink($mainTheme=null, $media=null)
257 // If the currently-selected theme has dependencies on other themes,
258 // we'll need to load their display.css files as well in order.
259 $theme = new Theme($mainTheme);
260 $baseThemes = $theme->getDeps();
261 foreach ($baseThemes as $baseTheme) {
262 $this->cssLink('css/display.css', $baseTheme, $media);
264 $this->cssLink('css/display.css', $mainTheme, $media);
268 * Show javascript headers
272 function showScripts()
274 if (Event::handle('StartShowScripts', array($this))) {
275 if (Event::handle('StartShowJQueryScripts', array($this))) {
276 $this->script('jquery.min.js');
277 $this->script('jquery.form.min.js');
278 $this->script('jquery.cookie.min.js');
279 $this->inlineScript('if (typeof window.JSON !== "object") { $.getScript("'.common_path('js/json2.min.js').'"); }');
280 $this->script('jquery.joverlay.min.js');
281 Event::handle('EndShowJQueryScripts', array($this));
283 if (Event::handle('StartShowStatusNetScripts', array($this)) &&
284 Event::handle('StartShowLaconicaScripts', array($this))) {
285 $this->script('util.min.js');
286 $this->showScriptMessages();
287 // Frame-busting code to avoid clickjacking attacks.
288 $this->inlineScript('if (window.top !== window.self) { window.top.location.href = window.self.location.href; }');
289 Event::handle('EndShowStatusNetScripts', array($this));
290 Event::handle('EndShowLaconicaScripts', array($this));
292 Event::handle('EndShowScripts', array($this));
297 * Exports a map of localized text strings to JavaScript code.
299 * Plugins can add to what's exported by hooking the StartScriptMessages or EndScriptMessages
300 * events and appending to the array. Try to avoid adding strings that won't be used, as
301 * they'll be added to HTML output.
304 function showScriptMessages()
308 if (Event::handle('StartScriptMessages', array($this, &$messages))) {
309 // Common messages needed for timeline views etc...
311 // TRANS: Localized tooltip for '...' expansion button on overlong remote messages.
312 $messages['showmore_tooltip'] = _m('TOOLTIP', 'Show more');
314 // TRANS: Inline reply form submit button: submits a reply comment.
315 $messages['reply_submit'] = _m('BUTTON', 'Comment');
317 $messages = array_merge($messages, $this->getScriptMessages());
319 Event::handle('EndScriptMessages', array($this, &$messages));
322 if (!empty($messages)) {
323 $this->inlineScript('SN.messages=' . json_encode($messages));
330 * If the action will need localizable text strings, export them here like so:
332 * return array('pool_deepend' => _('Deep end'),
333 * 'pool_shallow' => _('Shallow end'));
335 * The exported map will be available via SN.msg() to JS code:
337 * $('#pool').html('<div class="deepend"></div><div class="shallow"></div>');
338 * $('#pool .deepend').text(SN.msg('pool_deepend'));
339 * $('#pool .shallow').text(SN.msg('pool_shallow'));
341 * Exports a map of localized text strings to JavaScript code.
343 * Plugins can add to what's exported on any action by hooking the StartScriptMessages or
344 * EndScriptMessages events and appending to the array. Try to avoid adding strings that won't
345 * be used, as they'll be added to HTML output.
347 function getScriptMessages()
353 * Show OpenSearch headers
357 function showOpenSearch()
359 $this->element('link', array('rel' => 'search',
360 'type' => 'application/opensearchdescription+xml',
361 'href' => common_local_url('opensearch', array('type' => 'people')),
362 'title' => common_config('site', 'name').' People Search'));
363 $this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
364 'href' => common_local_url('opensearch', array('type' => 'notice')),
365 'title' => common_config('site', 'name').' Notice Search'));
377 $feeds = $this->getFeeds();
380 foreach ($feeds as $feed) {
381 $this->element('link', array('rel' => $feed->rel(),
382 'href' => $feed->url,
383 'type' => $feed->mimeType(),
384 'title' => $feed->title));
396 function showDescription()
398 // does nothing by default
402 * Show extra stuff in <head>.
410 // does nothing by default
416 * Calls template methods
422 $this->elementStart('body', (common_current_user()) ? array('id' => strtolower($this->trimmed('action')),
423 'class' => 'user_in')
424 : array('id' => strtolower($this->trimmed('action'))));
425 $this->elementStart('div', array('id' => 'wrap'));
426 if (Event::handle('StartShowHeader', array($this))) {
428 Event::handle('EndShowHeader', array($this));
431 if (Event::handle('StartShowFooter', array($this))) {
433 Event::handle('EndShowFooter', array($this));
435 $this->elementEnd('div');
436 $this->showScripts();
437 $this->elementEnd('body');
441 * Show header of the page.
443 * Calls template methods
447 function showHeader()
449 $this->elementStart('div', array('id' => 'header'));
451 $this->showPrimaryNav();
452 if (Event::handle('StartShowSiteNotice', array($this))) {
453 $this->showSiteNotice();
455 Event::handle('EndShowSiteNotice', array($this));
457 if (common_logged_in()) {
458 if (Event::handle('StartShowNoticeForm', array($this))) {
459 $this->showNoticeForm();
460 Event::handle('EndShowNoticeForm', array($this));
463 $this->showAnonymousMessage();
465 $this->elementEnd('div');
469 * Show configured logo.
475 $this->elementStart('address', array('id' => 'site_contact',
476 'class' => 'vcard'));
477 if (Event::handle('StartAddressData', array($this))) {
478 if (common_config('singleuser', 'enabled')) {
479 $user = User::singleUser();
480 $url = common_local_url('showstream',
481 array('nickname' => $user->nickname));
482 } else if (common_logged_in()) {
483 $cur = common_current_user();
484 $url = common_local_url('all', array('nickname' => $cur->nickname));
486 $url = common_local_url('public');
489 $this->elementStart('a', array('class' => 'url home bookmark',
492 if (StatusNet::isHTTPS()) {
493 $logoUrl = common_config('site', 'ssllogo');
494 if (empty($logoUrl)) {
495 // if logo is an uploaded file, try to fall back to HTTPS file URL
496 $httpUrl = common_config('site', 'logo');
497 if (!empty($httpUrl)) {
498 $f = File::staticGet('url', $httpUrl);
499 if (!empty($f) && !empty($f->filename)) {
500 // this will handle the HTTPS case
501 $logoUrl = File::url($f->filename);
506 $logoUrl = common_config('site', 'logo');
509 if (empty($logoUrl) && file_exists(Theme::file('logo.png'))) {
510 // This should handle the HTTPS case internally
511 $logoUrl = Theme::path('logo.png');
514 if (!empty($logoUrl)) {
515 $this->element('img', array('class' => 'logo photo',
517 'alt' => common_config('site', 'name')));
521 $this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
522 $this->elementEnd('a');
524 Event::handle('EndAddressData', array($this));
526 $this->elementEnd('address');
530 * Show primary navigation.
534 function showPrimaryNav()
536 $user = common_current_user();
537 $this->elementStart('ul', array('class' => 'nav',
538 'id' => 'site_nav_global_primary'));
539 if (Event::handle('StartPrimaryNav', array($this))) {
541 $this->menuItem(common_local_url('all',
542 array('nickname' => $user->nickname)),
544 _m('Friends timeline'),
547 $this->menuItem(common_local_url('showstream',
548 array('nickname' => $user->nickname)),
553 $this->menuItem(common_local_url('public'),
555 _m('Everyone on this site'),
558 $this->menuItem(common_local_url('profilesettings'),
560 _m('Change your personal settings'),
563 if ($user->hasRight(Right::CONFIGURESITE)) {
564 $this->menuItem(common_local_url('siteadminpanel'),
566 _m('Site configuration'),
570 $this->menuItem(common_local_url('logout'),
572 _m('Logout from the site'),
576 $this->menuItem(common_local_url('public'),
578 _m('Everyone on this site'),
581 $this->menuItem(common_local_url('login'),
583 _m('Login to the site'),
588 if (!empty($user) || !common_config('site', 'private')) {
589 $this->menuItem(common_local_url('noticesearch'),
591 _m('Search the site'),
596 Event::handle('EndPrimaryNav', array($this));
598 $this->elementEnd('ul');
606 function showSiteNotice()
608 // Revist. Should probably do an hAtom pattern here
609 $text = common_config('site', 'notice');
611 $this->elementStart('div', array('id' => 'site_notice',
612 'class' => 'system_notice'));
614 $this->elementEnd('div');
621 * MAY overload if no notice form needed... or direct message box????
625 function showNoticeForm()
627 $notice_form = new NoticeForm($this);
628 $notice_form->show();
632 * Show anonymous message.
638 function showAnonymousMessage()
640 // needs to be defined by the class
646 * Shows local navigation, content block and aside.
652 $this->elementStart('div', array('id' => 'core'));
653 if (Event::handle('StartShowLocalNavBlock', array($this))) {
654 $this->showLocalNavBlock();
655 Event::handle('EndShowLocalNavBlock', array($this));
657 if (Event::handle('StartShowContentBlock', array($this))) {
658 $this->showContentBlock();
659 Event::handle('EndShowContentBlock', array($this));
661 if (Event::handle('StartShowAside', array($this))) {
663 Event::handle('EndShowAside', array($this));
665 $this->elementEnd('div');
669 * Show local navigation block.
673 function showLocalNavBlock()
675 // Need to have this ID for CSS; I'm too lazy to add it to
677 $this->elementStart('div', array('id' => 'site_nav_local_views'));
678 $this->showLocalNav();
679 $this->elementEnd('div');
683 * Show local navigation.
689 function showLocalNav()
691 // does nothing by default
695 * Show content block.
699 function showContentBlock()
701 $this->elementStart('div', array('id' => 'content'));
702 if (Event::handle('StartShowPageTitle', array($this))) {
703 $this->showPageTitle();
704 Event::handle('EndShowPageTitle', array($this));
706 $this->showPageNoticeBlock();
707 $this->elementStart('div', array('id' => 'content_inner'));
708 // show the actual content (forms, lists, whatever)
709 $this->showContent();
710 $this->elementEnd('div');
711 $this->elementEnd('div');
719 function showPageTitle()
721 $this->element('h1', null, $this->title());
725 * Show page notice block.
727 * Only show the block if a subclassed action has overrided
728 * Action::showPageNotice(), or an event handler is registered for
729 * the StartShowPageNotice event, in which case we assume the
730 * 'page_notice' definition list is desired. This is to prevent
731 * empty 'page_notice' definition lists from being output everywhere.
735 function showPageNoticeBlock()
737 $rmethod = new ReflectionMethod($this, 'showPageNotice');
738 $dclass = $rmethod->getDeclaringClass()->getName();
740 if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
742 $this->elementStart('div', array('id' => 'page_notice',
743 'class' => 'system_notice'));
744 if (Event::handle('StartShowPageNotice', array($this))) {
745 $this->showPageNotice();
746 Event::handle('EndShowPageNotice', array($this));
748 $this->elementEnd('div');
755 * SHOULD overload (unless there's not a notice)
759 function showPageNotice()
766 * MUST overload (unless there's not a notice)
770 function showContent()
781 $this->elementStart('div', array('id' => 'aside_primary',
782 'class' => 'aside'));
783 if (Event::handle('StartShowSections', array($this))) {
784 $this->showSections();
785 Event::handle('EndShowSections', array($this));
787 if (Event::handle('StartShowExportData', array($this))) {
788 $this->showExportData();
789 Event::handle('EndShowExportData', array($this));
791 $this->elementEnd('div');
795 * Show export data feeds.
799 function showExportData()
801 $feeds = $this->getFeeds();
803 $fl = new FeedList($this);
815 function showSections()
817 // for each section, show it
825 function showFooter()
827 $this->elementStart('div', array('id' => 'footer'));
828 $this->showSecondaryNav();
829 $this->showLicenses();
830 $this->elementEnd('div');
834 * Show secondary navigation.
838 function showSecondaryNav()
840 $this->elementStart('ul', array('class' => 'nav',
841 'id' => 'site_nav_global_secondary'));
842 if (Event::handle('StartSecondaryNav', array($this))) {
843 $this->menuItem(common_local_url('doc', array('title' => 'help')),
844 // TRANS: Secondary navigation menu option leading to help on StatusNet.
846 $this->menuItem(common_local_url('doc', array('title' => 'about')),
847 // TRANS: Secondary navigation menu option leading to text about StatusNet site.
849 $this->menuItem(common_local_url('doc', array('title' => 'faq')),
850 // TRANS: Secondary navigation menu option leading to Frequently Asked Questions.
852 $bb = common_config('site', 'broughtby');
854 $this->menuItem(common_local_url('doc', array('title' => 'tos')),
855 // TRANS: Secondary navigation menu option leading to Terms of Service.
858 $this->menuItem(common_local_url('doc', array('title' => 'privacy')),
859 // TRANS: Secondary navigation menu option leading to privacy policy.
861 $this->menuItem(common_local_url('doc', array('title' => 'source')),
862 // TRANS: Secondary navigation menu option. Leads to information about StatusNet and its license.
864 $this->menuItem(common_local_url('version'),
865 // TRANS: Secondary navigation menu option leading to version information on the StatusNet site.
867 $this->menuItem(common_local_url('doc', array('title' => 'contact')),
868 // TRANS: Secondary navigation menu option leading to e-mail contact information on the
869 // TRANS: StatusNet site, where to report bugs, ...
871 $this->menuItem(common_local_url('doc', array('title' => 'badge')),
872 // TRANS: Secondary navigation menu option. Leads to information about embedding a timeline widget.
874 Event::handle('EndSecondaryNav', array($this));
876 $this->elementEnd('ul');
884 function showLicenses()
886 $this->showStatusNetLicense();
887 $this->showContentLicense();
891 * Show StatusNet license.
895 function showStatusNetLicense()
897 if (common_config('site', 'broughtby')) {
898 // TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is set.
899 // TRANS: Text between [] is a link description, text between () is the link itself.
900 // TRANS: Make sure there is no whitespace between "]" and "(".
901 // TRANS: "%%site.broughtby%%" is the value of the variable site.broughtby
902 $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%).');
904 // TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is not set.
905 $instr = _('**%%site.name%%** is a microblogging service.');
908 // TRANS: Second sentence of the StatusNet site license. Mentions the StatusNet source code license.
909 // TRANS: Make sure there is no whitespace between "]" and "(".
910 // TRANS: Text between [] is a link description, text between () is the link itself.
911 // TRANS: %s is the version of StatusNet that is being used.
912 $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);
913 $output = common_markup_to_html($instr);
919 * Show content license.
923 function showContentLicense()
925 if (Event::handle('StartShowContentLicense', array($this))) {
926 switch (common_config('license', 'type')) {
928 // TRANS: Content license displayed when license is set to 'private'.
929 // TRANS: %1$s is the site name.
930 $this->element('p', null, sprintf(_('Content and data of %1$s are private and confidential.'),
931 common_config('site', 'name')));
933 case 'allrightsreserved':
934 if (common_config('license', 'owner')) {
935 // TRANS: Content license displayed when license is set to 'allrightsreserved'.
936 // TRANS: %1$s is the copyright owner.
937 $this->element('p', null, sprintf(_('Content and data copyright by %1$s. All rights reserved.'),
938 common_config('license', 'owner')));
940 // TRANS: Content license displayed when license is set to 'allrightsreserved' and no owner is set.
941 $this->element('p', null, _('Content and data copyright by contributors. All rights reserved.'));
944 case 'cc': // fall through
946 $this->elementStart('p');
948 $image = common_config('license', 'image');
949 $sslimage = common_config('license', 'sslimage');
951 if (StatusNet::isHTTPS()) {
952 if (!empty($sslimage)) {
954 } else if (preg_match('#^http://i.creativecommons.org/#', $image)) {
955 // CC support HTTPS on their images
956 $url = preg_replace('/^http/', 'https', $image);
958 // Better to show mixed content than no content
965 $this->element('img', array('id' => 'license_cc',
967 'alt' => common_config('license', 'title'),
971 // TRANS: license message in footer.
972 // TRANS: %1$s is the site name, %2$s is a link to the license URL, with a licence name set in configuration.
973 $notice = _('All %1$s content and data are available under the %2$s license.');
974 $link = "<a class=\"license\" rel=\"external license\" href=\"" .
975 htmlspecialchars(common_config('license', 'url')) .
977 htmlspecialchars(common_config('license', 'title')) .
979 $this->raw(sprintf(htmlspecialchars($notice),
980 htmlspecialchars(common_config('site', 'name')),
982 $this->elementEnd('p');
986 Event::handle('EndShowContentLicense', array($this));
991 * Return last modified, if applicable.
995 * @return string last modified http header
997 function lastModified()
999 // For comparison with If-Last-Modified
1000 // If not applicable, return null
1005 * Return etag, if applicable.
1009 * @return string etag http header
1017 * Return true if read only.
1021 * @param array $args other arguments
1023 * @return boolean is read only action?
1025 function isReadOnly($args)
1031 * Returns query argument or default value if not found
1033 * @param string $key requested argument
1034 * @param string $def default value to return if $key is not provided
1036 * @return boolean is read only action?
1038 function arg($key, $def=null)
1040 if (array_key_exists($key, $this->args)) {
1041 return $this->args[$key];
1048 * Returns trimmed query argument or default value if not found
1050 * @param string $key requested argument
1051 * @param string $def default value to return if $key is not provided
1053 * @return boolean is read only action?
1055 function trimmed($key, $def=null)
1057 $arg = $this->arg($key, $def);
1058 return is_string($arg) ? trim($arg) : $arg;
1064 * @param array $argarray is ignored since it's now passed in in prepare()
1066 * @return boolean is read only action?
1068 function handle($argarray=null)
1070 header('Vary: Accept-Encoding,Cookie');
1072 $lm = $this->lastModified();
1073 $etag = $this->etag();
1076 header('ETag: ' . $etag);
1080 header('Last-Modified: ' . date(DATE_RFC1123, $lm));
1081 if ($this->isCacheable()) {
1082 header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
1083 header( "Cache-Control: private, must-revalidate, max-age=0" );
1090 $if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
1091 $_SERVER['HTTP_IF_NONE_MATCH'] : null;
1092 if ($if_none_match) {
1093 // If this check fails, ignore the if-modified-since below.
1095 if ($this->_hasEtag($etag, $if_none_match)) {
1096 header('HTTP/1.1 304 Not Modified');
1097 // Better way to do this?
1103 if (!$checked && $lm && array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
1104 $if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
1105 $ims = strtotime($if_modified_since);
1107 header('HTTP/1.1 304 Not Modified');
1108 // Better way to do this?
1115 * Is this action cacheable?
1117 * If the action returns a last-modified
1119 * @param array $argarray is ignored since it's now passed in in prepare()
1121 * @return boolean is read only action?
1123 function isCacheable()
1129 * HasĀ etag? (private)
1131 * @param string $etag etag http header
1132 * @param string $if_none_match ifNoneMatch http header
1136 function _hasEtag($etag, $if_none_match)
1138 $etags = explode(',', $if_none_match);
1139 return in_array($etag, $etags) || in_array('*', $etags);
1143 * Boolean understands english (yes, no, true, false)
1145 * @param string $key query key we're interested in
1146 * @param string $def default value
1148 * @return boolean interprets yes/no strings as boolean
1150 function boolean($key, $def=false)
1152 $arg = strtolower($this->trimmed($key));
1154 if (is_null($arg)) {
1156 } else if (in_array($arg, array('true', 'yes', '1', 'on'))) {
1158 } else if (in_array($arg, array('false', 'no', '0'))) {
1166 * Integer value of an argument
1168 * @param string $key query key we're interested in
1169 * @param string $defValue optional default value (default null)
1170 * @param string $maxValue optional max value (default null)
1171 * @param string $minValue optional min value (default null)
1173 * @return integer integer value
1175 function int($key, $defValue=null, $maxValue=null, $minValue=null)
1177 $arg = strtolower($this->trimmed($key));
1179 if (is_null($arg) || !is_integer($arg)) {
1183 if (!is_null($maxValue)) {
1184 $arg = min($arg, $maxValue);
1187 if (!is_null($minValue)) {
1188 $arg = max($arg, $minValue);
1197 * @param string $msg error message to display
1198 * @param integer $code http error code, 500 by default
1202 function serverError($msg, $code=500)
1204 $action = $this->trimmed('action');
1205 common_debug("Server error '$code' on '$action': $msg", __FILE__);
1206 throw new ServerException($msg, $code);
1212 * @param string $msg error message to display
1213 * @param integer $code http error code, 400 by default
1217 function clientError($msg, $code=400)
1219 $action = $this->trimmed('action');
1220 common_debug("User error '$code' on '$action': $msg", __FILE__);
1221 throw new ClientException($msg, $code);
1225 * Returns the current URL
1227 * @return string current URL
1231 list($action, $args) = $this->returnToArgs();
1232 return common_local_url($action, $args);
1236 * Returns arguments sufficient for re-constructing URL
1238 * @return array two elements: action, other args
1240 function returnToArgs()
1242 $action = $this->trimmed('action');
1243 $args = $this->args;
1244 unset($args['action']);
1245 if (common_config('site', 'fancy')) {
1248 if (array_key_exists('submit', $args)) {
1249 unset($args['submit']);
1251 foreach (array_keys($_COOKIE) as $cookie) {
1252 unset($args[$cookie]);
1254 return array($action, $args);
1258 * Generate a menu item
1260 * @param string $url menu URL
1261 * @param string $text menu name
1262 * @param string $title title attribute, null by default
1263 * @param boolean $is_selected current menu item, false by default
1264 * @param string $id element id, null by default
1268 function menuItem($url, $text, $title=null, $is_selected=false, $id=null)
1270 // Added @id to li for some control.
1271 // XXX: We might want to move this to htmloutputter.php
1274 $lattrs['class'] = 'current';
1277 (is_null($id)) ? $lattrs : $lattrs['id'] = $id;
1279 $this->elementStart('li', $lattrs);
1280 $attrs['href'] = $url;
1282 $attrs['title'] = $title;
1284 $this->element('a', $attrs, $text);
1285 $this->elementEnd('li');
1289 * Generate pagination links
1291 * @param boolean $have_before is there something before?
1292 * @param boolean $have_after is there something after?
1293 * @param integer $page current page
1294 * @param string $action current action
1295 * @param array $args rest of query arguments
1299 // XXX: The messages in this pagination method only tailor to navigating
1300 // notices. In other lists, "Previous"/"Next" type navigation is
1301 // desirable, but not available.
1302 function pagination($have_before, $have_after, $page, $action, $args=null)
1304 // Does a little before-after block for next/prev page
1305 if ($have_before || $have_after) {
1306 $this->elementStart('ul', array('class' => 'nav',
1307 'id' => 'pagination'));
1310 $pargs = array('page' => $page-1);
1311 $this->elementStart('li', array('class' => 'nav_prev'));
1312 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1314 // TRANS: Pagination message to go to a page displaying information more in the
1315 // TRANS: present than the currently displayed information.
1317 $this->elementEnd('li');
1320 $pargs = array('page' => $page+1);
1321 $this->elementStart('li', array('class' => 'nav_next'));
1322 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1324 // TRANS: Pagination message to go to a page displaying information more in the
1325 // TRANS: past than the currently displayed information.
1327 $this->elementEnd('li');
1329 if ($have_before || $have_after) {
1330 $this->elementEnd('ul');
1335 * An array of feeds for this action.
1337 * Returns an array of potential feeds for this action.
1339 * @return array Feed object to show in head and links
1347 * A design for this action
1349 * @return Design a design object to use
1351 function getDesign()
1353 return Design::siteDesign();
1357 * Check the session token.
1359 * Checks that the current form has the correct session token,
1360 * and throw an exception if it does not.
1364 // XXX: Finding this type of check with the same message about 50 times.
1365 // Possible to refactor?
1366 function checkSessionToken()
1369 $token = $this->trimmed('token');
1370 if (empty($token) || $token != common_session_token()) {
1371 // TRANS: Client error text when there is a problem with the session token.
1372 $this->clientError(_('There was a problem with your session token.'));
1377 * Check if the current request is a POST
1379 * @return boolean true if POST; otherwise false.
1384 return ($_SERVER['REQUEST_METHOD'] == 'POST');