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));
118 if (isset($_startTime)) {
119 $endTime = microtime(true);
120 $diff = round(($endTime - $_startTime) * 1000);
121 $this->raw("<!-- ${diff}ms -->");
124 return parent::endHTML();
128 * Show head, a template method.
134 // XXX: attributes (profile?)
135 $this->elementStart('head');
136 if (Event::handle('StartShowHeadElements', array($this))) {
137 if (Event::handle('StartShowHeadTitle', array($this))) {
139 Event::handle('EndShowHeadTitle', array($this));
141 $this->showShortcutIcon();
142 $this->showStylesheets();
143 $this->showOpenSearch();
145 $this->showDescription();
147 Event::handle('EndShowHeadElements', array($this));
149 $this->elementEnd('head');
153 * Show title, a template method.
159 $this->element('title', null,
160 // TRANS: Page title. %1$s is the title, %2$s is the site name.
161 sprintf(_("%1\$s - %2\$s"),
163 common_config('site', 'name')));
167 * Returns the page title
171 * @return string page title
176 // TRANS: Page title for a page without a title set.
177 return _("Untitled page");
181 * Show themed shortcut icon
185 function showShortcutIcon()
187 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/favicon.ico')) {
188 $this->element('link', array('rel' => 'shortcut icon',
189 'href' => Theme::path('favicon.ico')));
191 // favicon.ico should be HTTPS if the rest of the page is
192 $this->element('link', array('rel' => 'shortcut icon',
193 'href' => common_path('favicon.ico', StatusNet::isHTTPS())));
196 if (common_config('site', 'mobile')) {
197 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
198 $this->element('link', array('rel' => 'apple-touch-icon',
199 'href' => Theme::path('apple-touch-icon.png')));
201 $this->element('link', array('rel' => 'apple-touch-icon',
202 'href' => common_path('apple-touch-icon.png')));
212 function showStylesheets()
214 if (Event::handle('StartShowStyles', array($this))) {
216 // Use old name for StatusNet for compatibility on events
218 if (Event::handle('StartShowStatusNetStyles', array($this)) &&
219 Event::handle('StartShowLaconicaStyles', array($this))) {
220 $this->primaryCssLink(null, 'screen, projection, tv, print');
221 Event::handle('EndShowStatusNetStyles', array($this));
222 Event::handle('EndShowLaconicaStyles', array($this));
225 $this->cssLink(common_path('js/css/smoothness/jquery-ui.css'));
227 if (Event::handle('StartShowUAStyles', array($this))) {
228 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
229 'href="'.Theme::path('css/ie.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
230 foreach (array(6,7) as $ver) {
231 if (file_exists(Theme::file('css/ie'.$ver.'.css', 'base'))) {
232 // Yes, IE people should be put in jail.
233 $this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
234 'href="'.Theme::path('css/ie'.$ver.'.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
237 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
238 'href="'.Theme::path('css/ie.css', null).'?version='.STATUSNET_VERSION.'" /><![endif]');
239 Event::handle('EndShowUAStyles', array($this));
242 if (Event::handle('StartShowDesign', array($this))) {
244 $user = common_current_user();
246 if (empty($user) || $user->viewdesigns) {
247 $design = $this->getDesign();
249 if (!empty($design)) {
250 $design->showCSS($this);
254 Event::handle('EndShowDesign', array($this));
256 Event::handle('EndShowStyles', array($this));
258 if (common_config('custom_css', 'enabled')) {
259 $css = common_config('custom_css', 'css');
260 if (Event::handle('StartShowCustomCss', array($this, &$css))) {
261 if (trim($css) != '') {
264 Event::handle('EndShowCustomCss', array($this));
270 function primaryCssLink($mainTheme=null, $media=null)
272 $theme = new Theme($mainTheme);
274 // Some themes may have external stylesheets, such as using the
275 // Google Font APIs to load webfonts.
276 foreach ($theme->getExternals() as $url) {
277 $this->cssLink($url, $mainTheme, $media);
280 // If the currently-selected theme has dependencies on other themes,
281 // we'll need to load their display.css files as well in order.
282 $baseThemes = $theme->getDeps();
283 foreach ($baseThemes as $baseTheme) {
284 $this->cssLink('css/display.css', $baseTheme, $media);
286 $this->cssLink('css/display.css', $mainTheme, $media);
290 * Show javascript headers
294 function showScripts()
296 if (Event::handle('StartShowScripts', array($this))) {
297 if (Event::handle('StartShowJQueryScripts', array($this))) {
298 $this->script('jquery.min.js');
299 $this->script('jquery.form.min.js');
300 $this->script('jquery-ui.min.js');
301 $this->script('jquery.cookie.min.js');
302 $this->inlineScript('if (typeof window.JSON !== "object") { $.getScript("'.common_path('js/json2.min.js').'"); }');
303 $this->script('jquery.joverlay.min.js');
304 Event::handle('EndShowJQueryScripts', array($this));
306 if (Event::handle('StartShowStatusNetScripts', array($this)) &&
307 Event::handle('StartShowLaconicaScripts', array($this))) {
308 if (common_config('site', 'minify')) {
309 $this->script('util.min.js');
311 $this->script('util.js');
312 $this->script('xbImportNode.js');
313 $this->script('geometa.js');
315 $this->showScriptMessages();
316 // Frame-busting code to avoid clickjacking attacks.
317 $this->inlineScript('if (window.top !== window.self) { window.top.location.href = window.self.location.href; }');
318 $this->inlineScript('$(document).ready(function(){ $(\'#input_forms\').tabs(); });');
319 Event::handle('EndShowStatusNetScripts', array($this));
320 Event::handle('EndShowLaconicaScripts', array($this));
322 Event::handle('EndShowScripts', array($this));
327 * Exports a map of localized text strings to JavaScript code.
329 * Plugins can add to what's exported by hooking the StartScriptMessages or EndScriptMessages
330 * events and appending to the array. Try to avoid adding strings that won't be used, as
331 * they'll be added to HTML output.
334 function showScriptMessages()
338 if (Event::handle('StartScriptMessages', array($this, &$messages))) {
339 // Common messages needed for timeline views etc...
341 // TRANS: Localized tooltip for '...' expansion button on overlong remote messages.
342 $messages['showmore_tooltip'] = _m('TOOLTIP', 'Show more');
344 // TRANS: Inline reply form submit button: submits a reply comment.
345 $messages['reply_submit'] = _m('BUTTON', 'Reply');
347 // TRANS: Placeholder text for inline reply form. Clicking in this box will turn it into a mini notice form.
348 $messages['reply_placeholder'] = _m('Write a reply...');
350 $messages = array_merge($messages, $this->getScriptMessages());
352 Event::handle('EndScriptMessages', array($this, &$messages));
355 if (!empty($messages)) {
356 $this->inlineScript('SN.messages=' . json_encode($messages));
363 * If the action will need localizable text strings, export them here like so:
365 * return array('pool_deepend' => _('Deep end'),
366 * 'pool_shallow' => _('Shallow end'));
368 * The exported map will be available via SN.msg() to JS code:
370 * $('#pool').html('<div class="deepend"></div><div class="shallow"></div>');
371 * $('#pool .deepend').text(SN.msg('pool_deepend'));
372 * $('#pool .shallow').text(SN.msg('pool_shallow'));
374 * Exports a map of localized text strings to JavaScript code.
376 * Plugins can add to what's exported on any action by hooking the StartScriptMessages or
377 * EndScriptMessages events and appending to the array. Try to avoid adding strings that won't
378 * be used, as they'll be added to HTML output.
380 function getScriptMessages()
386 * Show OpenSearch headers
390 function showOpenSearch()
392 $this->element('link', array('rel' => 'search',
393 'type' => 'application/opensearchdescription+xml',
394 'href' => common_local_url('opensearch', array('type' => 'people')),
395 'title' => common_config('site', 'name').' People Search'));
396 $this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
397 'href' => common_local_url('opensearch', array('type' => 'notice')),
398 'title' => common_config('site', 'name').' Notice Search'));
410 $feeds = $this->getFeeds();
413 foreach ($feeds as $feed) {
414 $this->element('link', array('rel' => $feed->rel(),
415 'href' => $feed->url,
416 'type' => $feed->mimeType(),
417 'title' => $feed->title));
429 function showDescription()
431 // does nothing by default
435 * Show extra stuff in <head>.
443 // does nothing by default
449 * Calls template methods
455 $this->elementStart('body', (common_current_user()) ? array('id' => strtolower($this->trimmed('action')),
456 'class' => 'user_in')
457 : array('id' => strtolower($this->trimmed('action'))));
458 $this->elementStart('div', array('id' => 'wrap'));
459 if (Event::handle('StartShowHeader', array($this))) {
461 Event::handle('EndShowHeader', array($this));
464 if (Event::handle('StartShowFooter', array($this))) {
466 Event::handle('EndShowFooter', array($this));
468 $this->elementEnd('div');
469 $this->showScripts();
470 $this->elementEnd('body');
474 * Show header of the page.
476 * Calls template methods
480 function showHeader()
482 $this->elementStart('div', array('id' => 'header'));
484 $this->showPrimaryNav();
485 if (Event::handle('StartShowSiteNotice', array($this))) {
486 $this->showSiteNotice();
488 Event::handle('EndShowSiteNotice', array($this));
491 $this->elementEnd('div');
495 * Show configured logo.
501 $this->elementStart('address', array('id' => 'site_contact',
502 'class' => 'vcard'));
503 if (Event::handle('StartAddressData', array($this))) {
504 if (common_config('singleuser', 'enabled')) {
505 $user = User::singleUser();
506 $url = common_local_url('showstream',
507 array('nickname' => $user->nickname));
508 } else if (common_logged_in()) {
509 $cur = common_current_user();
510 $url = common_local_url('all', array('nickname' => $cur->nickname));
512 $url = common_local_url('public');
515 $this->elementStart('a', array('class' => 'url home bookmark',
518 if (StatusNet::isHTTPS()) {
519 $logoUrl = common_config('site', 'ssllogo');
520 if (empty($logoUrl)) {
521 // if logo is an uploaded file, try to fall back to HTTPS file URL
522 $httpUrl = common_config('site', 'logo');
523 if (!empty($httpUrl)) {
524 $f = File::staticGet('url', $httpUrl);
525 if (!empty($f) && !empty($f->filename)) {
526 // this will handle the HTTPS case
527 $logoUrl = File::url($f->filename);
532 $logoUrl = common_config('site', 'logo');
535 if (empty($logoUrl) && file_exists(Theme::file('logo.png'))) {
536 // This should handle the HTTPS case internally
537 $logoUrl = Theme::path('logo.png');
540 if (!empty($logoUrl)) {
541 $this->element('img', array('class' => 'logo photo',
543 'alt' => common_config('site', 'name')));
547 $this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
548 $this->elementEnd('a');
550 Event::handle('EndAddressData', array($this));
552 $this->elementEnd('address');
556 * Show primary navigation.
560 function showPrimaryNav()
562 $this->elementStart('div', array('id' => 'site_nav_global_primary'));
563 $pn = new PrimaryNav($this);
565 $this->elementEnd('div');
573 function showSiteNotice()
575 // Revist. Should probably do an hAtom pattern here
576 $text = common_config('site', 'notice');
578 $this->elementStart('div', array('id' => 'site_notice',
579 'class' => 'system_notice'));
581 $this->elementEnd('div');
588 * MAY overload if no notice form needed... or direct message box????
592 function showNoticeForm()
594 $tabs = array('status' => _('Status'));
596 $this->elementStart('div', array('id' => 'input_forms'));
598 if (Event::handle('StartShowEntryForms', array(&$tabs))) {
600 $this->elementStart('ul', array('class' => 'nav',
601 'id' => 'input_form_nav'));
603 foreach ($tabs as $tag => $title) {
605 $attrs = array('id' => 'input_form_nav_'.$tag,
606 'class' => 'input_form_nav_tab');
608 if ($tag == 'status') {
609 $attrs['class'] .= ' current';
612 $this->elementStart('li', $attrs);
615 array('href' => '#input_forms-'.$tag),
617 $this->elementEnd('li');
620 $this->elementEnd('ul');
622 foreach ($tabs as $tag => $title) {
624 $attrs = array('class' => 'input_form',
625 'id' => 'input_forms-'.$tag);
627 if ($tag == 'status') {
628 $attrs['class'] .= ' current';
631 $this->elementStart('div', $attrs);
635 if (Event::handle('StartMakeEntryForm', array($tag, $this, &$form))) {
636 if ($tag == 'status') {
637 $form = new NoticeForm($this);
639 Event::handle('EndMakeEntryForm', array($tag, $this, $form));
646 $this->elementEnd('div');
650 $this->elementEnd('div');
654 * Show anonymous message.
660 function showAnonymousMessage()
662 // needs to be defined by the class
668 * Shows local navigation, content block and aside.
674 $this->elementStart('div', array('id' => 'core'));
675 if (Event::handle('StartShowLocalNavBlock', array($this))) {
676 $this->showLocalNavBlock();
677 Event::handle('EndShowLocalNavBlock', array($this));
679 if (Event::handle('StartShowContentBlock', array($this))) {
680 $this->showContentBlock();
681 Event::handle('EndShowContentBlock', array($this));
683 if (Event::handle('StartShowAside', array($this))) {
685 Event::handle('EndShowAside', array($this));
687 $this->elementEnd('div');
691 * Show local navigation block.
695 function showLocalNavBlock()
697 // Need to have this ID for CSS; I'm too lazy to add it to
699 $this->elementStart('div', array('id' => 'site_nav_local_views'));
700 $this->showLocalNav();
701 $this->elementEnd('div');
705 * Show local navigation.
711 function showLocalNav()
713 $nav = new DefaultLocalNav($this);
718 * Show menu for an object (group, profile)
720 * This block will only show if a subclass has overridden
721 * the showObjectNav() method.
725 function showObjectNavBlock()
727 $rmethod = new ReflectionMethod($this, 'showObjectNav');
728 $dclass = $rmethod->getDeclaringClass()->getName();
730 if ($dclass != 'Action') {
731 // Need to have this ID for CSS; I'm too lazy to add it to
733 $this->elementStart('div', array('id' => 'site_nav_object',
734 'class' => 'section'));
735 $this->showObjectNav();
736 $this->elementEnd('div');
741 * Show object navigation.
743 * If there are things to do with this object, show it here.
747 function showObjectNav()
753 * Show content block.
757 function showContentBlock()
759 $this->elementStart('div', array('id' => 'content'));
760 if (common_logged_in()) {
761 if (Event::handle('StartShowNoticeForm', array($this))) {
762 $this->showNoticeForm();
763 Event::handle('EndShowNoticeForm', array($this));
766 if (Event::handle('StartShowPageTitle', array($this))) {
767 $this->showPageTitle();
768 Event::handle('EndShowPageTitle', array($this));
770 $this->showPageNoticeBlock();
771 $this->elementStart('div', array('id' => 'content_inner'));
772 // show the actual content (forms, lists, whatever)
773 $this->showContent();
774 $this->elementEnd('div');
775 $this->elementEnd('div');
783 function showPageTitle()
785 $this->element('h1', null, $this->title());
789 * Show page notice block.
791 * Only show the block if a subclassed action has overrided
792 * Action::showPageNotice(), or an event handler is registered for
793 * the StartShowPageNotice event, in which case we assume the
794 * 'page_notice' definition list is desired. This is to prevent
795 * empty 'page_notice' definition lists from being output everywhere.
799 function showPageNoticeBlock()
801 $rmethod = new ReflectionMethod($this, 'showPageNotice');
802 $dclass = $rmethod->getDeclaringClass()->getName();
804 if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
806 $this->elementStart('div', array('id' => 'page_notice',
807 'class' => 'system_notice'));
808 if (Event::handle('StartShowPageNotice', array($this))) {
809 $this->showPageNotice();
810 Event::handle('EndShowPageNotice', array($this));
812 $this->elementEnd('div');
819 * SHOULD overload (unless there's not a notice)
823 function showPageNotice()
830 * MUST overload (unless there's not a notice)
834 function showContent()
845 $this->elementStart('div', array('id' => 'aside_primary',
846 'class' => 'aside'));
847 if (Event::handle('StartShowObjectNavBlock', array($this))) {
848 $this->showObjectNavBlock();
849 Event::handle('EndShowObjectNavBlock', array($this));
851 if (Event::handle('StartShowSections', array($this))) {
852 $this->showSections();
853 Event::handle('EndShowSections', array($this));
855 if (Event::handle('StartShowExportData', array($this))) {
856 $this->showExportData();
857 Event::handle('EndShowExportData', array($this));
859 $this->elementEnd('div');
863 * Show export data feeds.
867 function showExportData()
869 $feeds = $this->getFeeds();
871 $fl = new FeedList($this);
883 function showSections()
885 // for each section, show it
893 function showFooter()
895 $this->elementStart('div', array('id' => 'footer'));
896 if (Event::handle('StartShowInsideFooter', array($this))) {
897 $this->showSecondaryNav();
898 $this->showLicenses();
899 Event::handle('EndShowInsideFooter', array($this));
901 $this->elementEnd('div');
905 * Show secondary navigation.
909 function showSecondaryNav()
911 $sn = new SecondaryNav($this);
920 function showLicenses()
922 $this->showStatusNetLicense();
923 $this->showContentLicense();
927 * Show StatusNet license.
931 function showStatusNetLicense()
933 if (common_config('site', 'broughtby')) {
934 // TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is set.
935 // TRANS: Text between [] is a link description, text between () is the link itself.
936 // TRANS: Make sure there is no whitespace between "]" and "(".
937 // TRANS: "%%site.broughtby%%" is the value of the variable site.broughtby
938 $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%).');
940 // TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is not set.
941 $instr = _('**%%site.name%%** is a microblogging service.');
944 // TRANS: Second sentence of the StatusNet site license. Mentions the StatusNet source code license.
945 // TRANS: Make sure there is no whitespace between "]" and "(".
946 // TRANS: Text between [] is a link description, text between () is the link itself.
947 // TRANS: %s is the version of StatusNet that is being used.
948 $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);
949 $output = common_markup_to_html($instr);
955 * Show content license.
959 function showContentLicense()
961 if (Event::handle('StartShowContentLicense', array($this))) {
962 switch (common_config('license', 'type')) {
964 // TRANS: Content license displayed when license is set to 'private'.
965 // TRANS: %1$s is the site name.
966 $this->element('p', null, sprintf(_('Content and data of %1$s are private and confidential.'),
967 common_config('site', 'name')));
969 case 'allrightsreserved':
970 if (common_config('license', 'owner')) {
971 // TRANS: Content license displayed when license is set to 'allrightsreserved'.
972 // TRANS: %1$s is the copyright owner.
973 $this->element('p', null, sprintf(_('Content and data copyright by %1$s. All rights reserved.'),
974 common_config('license', 'owner')));
976 // TRANS: Content license displayed when license is set to 'allrightsreserved' and no owner is set.
977 $this->element('p', null, _('Content and data copyright by contributors. All rights reserved.'));
980 case 'cc': // fall through
982 $this->elementStart('p');
984 $image = common_config('license', 'image');
985 $sslimage = common_config('license', 'sslimage');
987 if (StatusNet::isHTTPS()) {
988 if (!empty($sslimage)) {
990 } else if (preg_match('#^http://i.creativecommons.org/#', $image)) {
991 // CC support HTTPS on their images
992 $url = preg_replace('/^http/', 'https', $image);
994 // Better to show mixed content than no content
1001 $this->element('img', array('id' => 'license_cc',
1003 'alt' => common_config('license', 'title'),
1007 // TRANS: license message in footer.
1008 // TRANS: %1$s is the site name, %2$s is a link to the license URL, with a licence name set in configuration.
1009 $notice = _('All %1$s content and data are available under the %2$s license.');
1010 $link = "<a class=\"license\" rel=\"external license\" href=\"" .
1011 htmlspecialchars(common_config('license', 'url')) .
1013 htmlspecialchars(common_config('license', 'title')) .
1015 $this->raw(sprintf(htmlspecialchars($notice),
1016 htmlspecialchars(common_config('site', 'name')),
1018 $this->elementEnd('p');
1022 Event::handle('EndShowContentLicense', array($this));
1027 * Return last modified, if applicable.
1031 * @return string last modified http header
1033 function lastModified()
1035 // For comparison with If-Last-Modified
1036 // If not applicable, return null
1041 * Return etag, if applicable.
1045 * @return string etag http header
1053 * Return true if read only.
1057 * @param array $args other arguments
1059 * @return boolean is read only action?
1061 function isReadOnly($args)
1067 * Returns query argument or default value if not found
1069 * @param string $key requested argument
1070 * @param string $def default value to return if $key is not provided
1072 * @return boolean is read only action?
1074 function arg($key, $def=null)
1076 if (array_key_exists($key, $this->args)) {
1077 return $this->args[$key];
1084 * Returns trimmed query argument or default value if not found
1086 * @param string $key requested argument
1087 * @param string $def default value to return if $key is not provided
1089 * @return boolean is read only action?
1091 function trimmed($key, $def=null)
1093 $arg = $this->arg($key, $def);
1094 return is_string($arg) ? trim($arg) : $arg;
1100 * @param array $argarray is ignored since it's now passed in in prepare()
1102 * @return boolean is read only action?
1104 function handle($argarray=null)
1106 header('Vary: Accept-Encoding,Cookie');
1108 $lm = $this->lastModified();
1109 $etag = $this->etag();
1112 header('ETag: ' . $etag);
1116 header('Last-Modified: ' . date(DATE_RFC1123, $lm));
1117 if ($this->isCacheable()) {
1118 header( 'Expires: ' . gmdate( 'D, d M Y H:i:s', 0 ) . ' GMT' );
1119 header( "Cache-Control: private, must-revalidate, max-age=0" );
1126 $if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
1127 $_SERVER['HTTP_IF_NONE_MATCH'] : null;
1128 if ($if_none_match) {
1129 // If this check fails, ignore the if-modified-since below.
1131 if ($this->_hasEtag($etag, $if_none_match)) {
1132 header('HTTP/1.1 304 Not Modified');
1133 // Better way to do this?
1139 if (!$checked && $lm && array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
1140 $if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
1141 $ims = strtotime($if_modified_since);
1143 header('HTTP/1.1 304 Not Modified');
1144 // Better way to do this?
1151 * Is this action cacheable?
1153 * If the action returns a last-modified
1155 * @param array $argarray is ignored since it's now passed in in prepare()
1157 * @return boolean is read only action?
1159 function isCacheable()
1165 * HasĀ etag? (private)
1167 * @param string $etag etag http header
1168 * @param string $if_none_match ifNoneMatch http header
1172 function _hasEtag($etag, $if_none_match)
1174 $etags = explode(',', $if_none_match);
1175 return in_array($etag, $etags) || in_array('*', $etags);
1179 * Boolean understands english (yes, no, true, false)
1181 * @param string $key query key we're interested in
1182 * @param string $def default value
1184 * @return boolean interprets yes/no strings as boolean
1186 function boolean($key, $def=false)
1188 $arg = strtolower($this->trimmed($key));
1190 if (is_null($arg)) {
1192 } else if (in_array($arg, array('true', 'yes', '1', 'on'))) {
1194 } else if (in_array($arg, array('false', 'no', '0'))) {
1202 * Integer value of an argument
1204 * @param string $key query key we're interested in
1205 * @param string $defValue optional default value (default null)
1206 * @param string $maxValue optional max value (default null)
1207 * @param string $minValue optional min value (default null)
1209 * @return integer integer value
1211 function int($key, $defValue=null, $maxValue=null, $minValue=null)
1213 $arg = strtolower($this->trimmed($key));
1215 if (is_null($arg) || !is_integer($arg)) {
1219 if (!is_null($maxValue)) {
1220 $arg = min($arg, $maxValue);
1223 if (!is_null($minValue)) {
1224 $arg = max($arg, $minValue);
1233 * @param string $msg error message to display
1234 * @param integer $code http error code, 500 by default
1238 function serverError($msg, $code=500)
1240 $action = $this->trimmed('action');
1241 common_debug("Server error '$code' on '$action': $msg", __FILE__);
1242 throw new ServerException($msg, $code);
1248 * @param string $msg error message to display
1249 * @param integer $code http error code, 400 by default
1253 function clientError($msg, $code=400)
1255 $action = $this->trimmed('action');
1256 common_debug("User error '$code' on '$action': $msg", __FILE__);
1257 throw new ClientException($msg, $code);
1261 * Returns the current URL
1263 * @return string current URL
1267 list($action, $args) = $this->returnToArgs();
1268 return common_local_url($action, $args);
1272 * Returns arguments sufficient for re-constructing URL
1274 * @return array two elements: action, other args
1276 function returnToArgs()
1278 $action = $this->trimmed('action');
1279 $args = $this->args;
1280 unset($args['action']);
1281 if (common_config('site', 'fancy')) {
1284 if (array_key_exists('submit', $args)) {
1285 unset($args['submit']);
1287 foreach (array_keys($_COOKIE) as $cookie) {
1288 unset($args[$cookie]);
1290 return array($action, $args);
1294 * Generate a menu item
1296 * @param string $url menu URL
1297 * @param string $text menu name
1298 * @param string $title title attribute, null by default
1299 * @param boolean $is_selected current menu item, false by default
1300 * @param string $id element id, null by default
1304 function menuItem($url, $text, $title=null, $is_selected=false, $id=null)
1306 // Added @id to li for some control.
1307 // XXX: We might want to move this to htmloutputter.php
1310 $lattrs['class'] = 'current';
1313 (is_null($id)) ? $lattrs : $lattrs['id'] = $id;
1315 $this->elementStart('li', $lattrs);
1316 $attrs['href'] = $url;
1318 $attrs['title'] = $title;
1320 $this->element('a', $attrs, $text);
1321 $this->elementEnd('li');
1325 * Generate pagination links
1327 * @param boolean $have_before is there something before?
1328 * @param boolean $have_after is there something after?
1329 * @param integer $page current page
1330 * @param string $action current action
1331 * @param array $args rest of query arguments
1335 // XXX: The messages in this pagination method only tailor to navigating
1336 // notices. In other lists, "Previous"/"Next" type navigation is
1337 // desirable, but not available.
1338 function pagination($have_before, $have_after, $page, $action, $args=null)
1340 // Does a little before-after block for next/prev page
1341 if ($have_before || $have_after) {
1342 $this->elementStart('ul', array('class' => 'nav',
1343 'id' => 'pagination'));
1346 $pargs = array('page' => $page-1);
1347 $this->elementStart('li', array('class' => 'nav_prev'));
1348 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1350 // TRANS: Pagination message to go to a page displaying information more in the
1351 // TRANS: present than the currently displayed information.
1353 $this->elementEnd('li');
1356 $pargs = array('page' => $page+1);
1357 $this->elementStart('li', array('class' => 'nav_next'));
1358 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1360 // TRANS: Pagination message to go to a page displaying information more in the
1361 // TRANS: past than the currently displayed information.
1363 $this->elementEnd('li');
1365 if ($have_before || $have_after) {
1366 $this->elementEnd('ul');
1371 * An array of feeds for this action.
1373 * Returns an array of potential feeds for this action.
1375 * @return array Feed object to show in head and links
1383 * A design for this action
1385 * @return Design a design object to use
1387 function getDesign()
1389 return Design::siteDesign();
1393 * Check the session token.
1395 * Checks that the current form has the correct session token,
1396 * and throw an exception if it does not.
1400 // XXX: Finding this type of check with the same message about 50 times.
1401 // Possible to refactor?
1402 function checkSessionToken()
1405 $token = $this->trimmed('token');
1406 if (empty($token) || $token != common_session_token()) {
1407 // TRANS: Client error text when there is a problem with the session token.
1408 $this->clientError(_('There was a problem with your session token.'));
1413 * Check if the current request is a POST
1415 * @return boolean true if POST; otherwise false.
1420 return ($_SERVER['REQUEST_METHOD'] == 'POST');