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 $this->element('link', array('rel' => 'shortcut icon',
179 'href' => common_path('favicon.ico')));
182 if (common_config('site', 'mobile')) {
183 if (is_readable(INSTALLDIR . '/theme/' . common_config('site', 'theme') . '/apple-touch-icon.png')) {
184 $this->element('link', array('rel' => 'apple-touch-icon',
185 'href' => Theme::path('apple-touch-icon.png')));
187 $this->element('link', array('rel' => 'apple-touch-icon',
188 'href' => common_path('apple-touch-icon.png')));
198 function showStylesheets()
200 if (Event::handle('StartShowStyles', array($this))) {
202 // Use old name for StatusNet for compatibility on events
204 if (Event::handle('StartShowStatusNetStyles', array($this)) &&
205 Event::handle('StartShowLaconicaStyles', array($this))) {
206 $this->cssLink('css/display.css',null, 'screen, projection, tv, print');
207 Event::handle('EndShowStatusNetStyles', array($this));
208 Event::handle('EndShowLaconicaStyles', array($this));
211 if (Event::handle('StartShowUAStyles', array($this))) {
212 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
213 'href="'.Theme::path('css/ie.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
214 foreach (array(6,7) as $ver) {
215 if (file_exists(Theme::file('css/ie'.$ver.'.css', 'base'))) {
216 // Yes, IE people should be put in jail.
217 $this->comment('[if lte IE '.$ver.']><link rel="stylesheet" type="text/css" '.
218 'href="'.Theme::path('css/ie'.$ver.'.css', 'base').'?version='.STATUSNET_VERSION.'" /><![endif]');
221 $this->comment('[if IE]><link rel="stylesheet" type="text/css" '.
222 'href="'.Theme::path('css/ie.css', null).'?version='.STATUSNET_VERSION.'" /><![endif]');
223 Event::handle('EndShowUAStyles', array($this));
226 if (Event::handle('StartShowDesign', array($this))) {
228 $user = common_current_user();
230 if (empty($user) || $user->viewdesigns) {
231 $design = $this->getDesign();
233 if (!empty($design)) {
234 $design->showCSS($this);
238 Event::handle('EndShowDesign', array($this));
240 Event::handle('EndShowStyles', array($this));
242 if (common_config('custom_css', 'enabled')) {
243 $css = common_config('custom_css', 'css');
244 if (Event::handle('StartShowCustomCss', array($this, &$css))) {
245 if (trim($css) != '') {
248 Event::handle('EndShowCustomCss', array($this));
255 * Show javascript headers
259 function showScripts()
261 if (Event::handle('StartShowScripts', array($this))) {
262 if (Event::handle('StartShowJQueryScripts', array($this))) {
263 $this->script('jquery.min.js');
264 $this->script('jquery.form.js');
265 $this->script('jquery.cookie.js');
266 $this->inlineScript('if (typeof window.JSON !== "object") { $.getScript("'.common_path('js/json2.js').'"); }');
267 $this->script('jquery.joverlay.min.js');
268 Event::handle('EndShowJQueryScripts', array($this));
270 if (Event::handle('StartShowStatusNetScripts', array($this)) &&
271 Event::handle('StartShowLaconicaScripts', array($this))) {
272 $this->script('xbImportNode.js');
273 $this->script('util.js');
274 $this->script('geometa.js');
275 // Frame-busting code to avoid clickjacking attacks.
276 $this->inlineScript('if (window.top !== window.self) { window.top.location.href = window.self.location.href; }');
277 Event::handle('EndShowStatusNetScripts', array($this));
278 Event::handle('EndShowLaconicaScripts', array($this));
280 Event::handle('EndShowScripts', array($this));
285 * Show OpenSearch headers
289 function showOpenSearch()
291 $this->element('link', array('rel' => 'search',
292 'type' => 'application/opensearchdescription+xml',
293 'href' => common_local_url('opensearch', array('type' => 'people')),
294 'title' => common_config('site', 'name').' People Search'));
295 $this->element('link', array('rel' => 'search', 'type' => 'application/opensearchdescription+xml',
296 'href' => common_local_url('opensearch', array('type' => 'notice')),
297 'title' => common_config('site', 'name').' Notice Search'));
310 $feeds = $this->getFeeds();
313 foreach ($feeds as $feed) {
314 $this->element('link', array('rel' => $feed->rel(),
315 'href' => $feed->url,
316 'type' => $feed->mimeType(),
317 'title' => $feed->title));
329 function showDescription()
331 // does nothing by default
335 * Show extra stuff in <head>.
343 // does nothing by default
349 * Calls template methods
355 $this->elementStart('body', (common_current_user()) ? array('id' => $this->trimmed('action'),
356 'class' => 'user_in')
357 : array('id' => $this->trimmed('action')));
358 $this->elementStart('div', array('id' => 'wrap'));
359 if (Event::handle('StartShowHeader', array($this))) {
361 Event::handle('EndShowHeader', array($this));
364 if (Event::handle('StartShowFooter', array($this))) {
366 Event::handle('EndShowFooter', array($this));
368 $this->elementEnd('div');
369 $this->showScripts();
370 $this->elementEnd('body');
374 * Show header of the page.
376 * Calls template methods
380 function showHeader()
382 $this->elementStart('div', array('id' => 'header'));
384 $this->showPrimaryNav();
385 if (Event::handle('StartShowSiteNotice', array($this))) {
386 $this->showSiteNotice();
388 Event::handle('EndShowSiteNotice', array($this));
390 if (common_logged_in()) {
391 $this->showNoticeForm();
393 $this->showAnonymousMessage();
395 $this->elementEnd('div');
399 * Show configured logo.
405 $this->elementStart('address', array('id' => 'site_contact',
406 'class' => 'vcard'));
407 if (Event::handle('StartAddressData', array($this))) {
408 if (common_config('singleuser', 'enabled')) {
409 $url = common_local_url('showstream',
410 array('nickname' => common_config('singleuser', 'nickname')));
412 $url = common_local_url('public');
414 $this->elementStart('a', array('class' => 'url home bookmark',
416 if (common_config('site', 'logo') || file_exists(Theme::file('logo.png'))) {
417 $this->element('img', array('class' => 'logo photo',
418 'src' => (common_config('site', 'logo')) ? common_config('site', 'logo') : Theme::path('logo.png'),
419 'alt' => common_config('site', 'name')));
422 $this->element('span', array('class' => 'fn org'), common_config('site', 'name'));
423 $this->elementEnd('a');
424 Event::handle('EndAddressData', array($this));
426 $this->elementEnd('address');
430 * Show primary navigation.
434 function showPrimaryNav()
436 $user = common_current_user();
437 $this->elementStart('dl', array('id' => 'site_nav_global_primary'));
438 // TRANS: DT element for primary navigation menu. String is hidden in default CSS.
439 $this->element('dt', null, _('Primary site navigation'));
440 $this->elementStart('dd');
441 $this->elementStart('ul', array('class' => 'nav'));
442 if (Event::handle('StartPrimaryNav', array($this))) {
444 // TRANS: Tooltip for main menu option "Personal"
445 $tooltip = _m('TOOLTIP', 'Personal profile and friends timeline');
446 $this->menuItem(common_local_url('all', array('nickname' => $user->nickname)),
447 // TRANS: Main menu option when logged in for access to personal profile and friends timeline
448 _m('MENU', 'Personal'), $tooltip, false, 'nav_home');
449 // TRANS: Tooltip for main menu option "Account"
450 $tooltip = _m('TOOLTIP', 'Change your email, avatar, password, profile');
451 $this->menuItem(common_local_url('profilesettings'),
452 // TRANS: Main menu option when logged in for access to user settings
453 _('Account'), $tooltip, false, 'nav_account');
454 // TRANS: Tooltip for main menu option "Services"
455 $tooltip = _m('TOOLTIP', 'Connect to services');
456 $this->menuItem(common_local_url('oauthconnectionssettings'),
457 // TRANS: Main menu option when logged in and connection are possible for access to options to connect to other services
458 _('Connect'), $tooltip, false, 'nav_connect');
459 if ($user->hasRight(Right::CONFIGURESITE)) {
460 // TRANS: Tooltip for menu option "Admin"
461 $tooltip = _m('TOOLTIP', 'Change site configuration');
462 $this->menuItem(common_local_url('siteadminpanel'),
463 // TRANS: Main menu option when logged in and site admin for access to site configuration
464 _m('MENU', 'Admin'), $tooltip, false, 'nav_admin');
466 if (common_config('invite', 'enabled')) {
467 // TRANS: Tooltip for main menu option "Invite"
468 $tooltip = _m('TOOLTIP', 'Invite friends and colleagues to join you on %s');
469 $this->menuItem(common_local_url('invite'),
470 // TRANS: Main menu option when logged in and invitations are allowed for inviting new users
471 _m('MENU', 'Invite'),
473 common_config('site', 'name')),
474 false, 'nav_invitecontact');
476 // TRANS: Tooltip for main menu option "Logout"
477 $tooltip = _m('TOOLTIP', 'Logout from the site');
478 $this->menuItem(common_local_url('logout'),
479 // TRANS: Main menu option when logged in to log out the current user
480 _m('MENU', 'Logout'), $tooltip, false, 'nav_logout');
483 if (!common_config('site', 'closed') && !common_config('site', 'inviteonly')) {
484 // TRANS: Tooltip for main menu option "Register"
485 $tooltip = _m('TOOLTIP', 'Create an account');
486 $this->menuItem(common_local_url('register'),
487 // TRANS: Main menu option when not logged in to register a new account
488 _m('MENU', 'Register'), $tooltip, false, 'nav_register');
490 // TRANS: Tooltip for main menu option "Login"
491 $tooltip = _m('TOOLTIP', 'Login to the site');
492 // TRANS: Main menu option when not logged in to log in
493 $this->menuItem(common_local_url('login'),
494 _m('MENU', 'Login'), $tooltip, false, 'nav_login');
496 // TRANS: Tooltip for main menu option "Help"
497 $tooltip = _m('TOOLTIP', 'Help me!');
498 // TRANS: Main menu option for help on the StatusNet site
499 $this->menuItem(common_local_url('doc', array('title' => 'help')),
500 _m('MENU', 'Help'), $tooltip, false, 'nav_help');
501 if ($user || !common_config('site', 'private')) {
502 // TRANS: Tooltip for main menu option "Search"
503 $tooltip = _m('TOOLTIP', 'Search for people or text');
504 // TRANS: Main menu option when logged in or when the StatusNet instance is not private
505 $this->menuItem(common_local_url('peoplesearch'),
506 _m('MENU', 'Search'), $tooltip, false, 'nav_search');
508 Event::handle('EndPrimaryNav', array($this));
510 $this->elementEnd('ul');
511 $this->elementEnd('dd');
512 $this->elementEnd('dl');
520 function showSiteNotice()
522 // Revist. Should probably do an hAtom pattern here
523 $text = common_config('site', 'notice');
525 $this->elementStart('dl', array('id' => 'site_notice',
526 'class' => 'system_notice'));
527 // TRANS: DT element for site notice. String is hidden in default CSS.
528 $this->element('dt', null, _('Site notice'));
529 $this->elementStart('dd', null);
531 $this->elementEnd('dd');
532 $this->elementEnd('dl');
539 * MAY overload if no notice form needed... or direct message box????
543 function showNoticeForm()
545 $notice_form = new NoticeForm($this);
546 $notice_form->show();
550 * Show anonymous message.
556 function showAnonymousMessage()
558 // needs to be defined by the class
564 * Shows local navigation, content block and aside.
570 $this->elementStart('div', array('id' => 'core'));
571 if (Event::handle('StartShowLocalNavBlock', array($this))) {
572 $this->showLocalNavBlock();
573 Event::handle('EndShowLocalNavBlock', array($this));
575 if (Event::handle('StartShowContentBlock', array($this))) {
576 $this->showContentBlock();
577 Event::handle('EndShowContentBlock', array($this));
579 if (Event::handle('StartShowAside', array($this))) {
581 Event::handle('EndShowAside', array($this));
583 $this->elementEnd('div');
587 * Show local navigation block.
591 function showLocalNavBlock()
593 $this->elementStart('dl', array('id' => 'site_nav_local_views'));
594 // TRANS: DT element for local views block. String is hidden in default CSS.
595 $this->element('dt', null, _('Local views'));
596 $this->elementStart('dd');
597 $this->showLocalNav();
598 $this->elementEnd('dd');
599 $this->elementEnd('dl');
603 * Show local navigation.
609 function showLocalNav()
611 // does nothing by default
615 * Show content block.
619 function showContentBlock()
621 $this->elementStart('div', array('id' => 'content'));
622 if (Event::handle('StartShowPageTitle', array($this))) {
623 $this->showPageTitle();
624 Event::handle('EndShowPageTitle', array($this));
626 $this->showPageNoticeBlock();
627 $this->elementStart('div', array('id' => 'content_inner'));
628 // show the actual content (forms, lists, whatever)
629 $this->showContent();
630 $this->elementEnd('div');
631 $this->elementEnd('div');
639 function showPageTitle()
641 $this->element('h1', null, $this->title());
645 * Show page notice block.
647 * Only show the block if a subclassed action has overrided
648 * Action::showPageNotice(), or an event handler is registered for
649 * the StartShowPageNotice event, in which case we assume the
650 * 'page_notice' definition list is desired. This is to prevent
651 * empty 'page_notice' definition lists from being output everywhere.
655 function showPageNoticeBlock()
657 $rmethod = new ReflectionMethod($this, 'showPageNotice');
658 $dclass = $rmethod->getDeclaringClass()->getName();
660 if ($dclass != 'Action' || Event::hasHandler('StartShowPageNotice')) {
662 $this->elementStart('dl', array('id' => 'page_notice',
663 'class' => 'system_notice'));
664 // TRANS: DT element for page notice. String is hidden in default CSS.
665 $this->element('dt', null, _('Page notice'));
666 $this->elementStart('dd');
667 if (Event::handle('StartShowPageNotice', array($this))) {
668 $this->showPageNotice();
669 Event::handle('EndShowPageNotice', array($this));
671 $this->elementEnd('dd');
672 $this->elementEnd('dl');
679 * SHOULD overload (unless there's not a notice)
683 function showPageNotice()
690 * MUST overload (unless there's not a notice)
694 function showContent()
706 $this->elementStart('div', array('id' => 'aside_primary',
707 'class' => 'aside'));
708 if (Event::handle('StartShowExportData', array($this))) {
709 $this->showExportData();
710 Event::handle('EndShowExportData', array($this));
712 if (Event::handle('StartShowSections', array($this))) {
713 $this->showSections();
714 Event::handle('EndShowSections', array($this));
716 $this->elementEnd('div');
720 * Show export data feeds.
725 function showExportData()
727 $feeds = $this->getFeeds();
729 $fl = new FeedList($this);
741 function showSections()
743 // for each section, show it
751 function showFooter()
753 $this->elementStart('div', array('id' => 'footer'));
754 $this->showSecondaryNav();
755 $this->showLicenses();
756 $this->elementEnd('div');
760 * Show secondary navigation.
764 function showSecondaryNav()
766 $this->elementStart('dl', array('id' => 'site_nav_global_secondary'));
767 // TRANS: DT element for secondary navigation menu. String is hidden in default CSS.
768 $this->element('dt', null, _('Secondary site navigation'));
769 $this->elementStart('dd', null);
770 $this->elementStart('ul', array('class' => 'nav'));
771 if (Event::handle('StartSecondaryNav', array($this))) {
772 $this->menuItem(common_local_url('doc', array('title' => 'help')),
773 // TRANS: Secondary navigation menu option leading to help on StatusNet.
775 $this->menuItem(common_local_url('doc', array('title' => 'about')),
776 // TRANS: Secondary navigation menu option leading to text about StatusNet site.
778 $this->menuItem(common_local_url('doc', array('title' => 'faq')),
779 // TRANS: Secondary navigation menu option leading to Frequently Asked Questions.
781 $bb = common_config('site', 'broughtby');
783 $this->menuItem(common_local_url('doc', array('title' => 'tos')),
784 // TRANS: Secondary navigation menu option leading to Terms of Service.
787 $this->menuItem(common_local_url('doc', array('title' => 'privacy')),
788 // TRANS: Secondary navigation menu option leading to privacy policy.
790 $this->menuItem(common_local_url('doc', array('title' => 'source')),
791 // TRANS: Secondary navigation menu option.
793 $this->menuItem(common_local_url('version'),
794 // TRANS: Secondary navigation menu option leading to version information on the StatusNet site.
796 $this->menuItem(common_local_url('doc', array('title' => 'contact')),
797 // TRANS: Secondary navigation menu option leading to contact information on the StatusNet site.
799 $this->menuItem(common_local_url('doc', array('title' => 'badge')),
801 Event::handle('EndSecondaryNav', array($this));
803 $this->elementEnd('ul');
804 $this->elementEnd('dd');
805 $this->elementEnd('dl');
813 function showLicenses()
815 $this->elementStart('dl', array('id' => 'licenses'));
816 $this->showStatusNetLicense();
817 $this->showContentLicense();
818 $this->elementEnd('dl');
822 * Show StatusNet license.
826 function showStatusNetLicense()
828 // TRANS: DT element for StatusNet software license.
829 $this->element('dt', array('id' => 'site_statusnet_license'), _('StatusNet software license'));
830 $this->elementStart('dd', null);
831 if (common_config('site', 'broughtby')) {
832 // TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is set.
833 $instr = _('**%%site.name%%** is a microblogging service brought to you by [%%site.broughtby%%](%%site.broughtbyurl%%).');
835 // TRANS: First sentence of the StatusNet site license. Used if 'broughtby' is not set.
836 $instr = _('**%%site.name%%** is a microblogging service.');
839 // TRANS: Second sentence of the StatusNet site license. Mentions the StatusNet source code license.
840 $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);
841 $output = common_markup_to_html($instr);
843 $this->elementEnd('dd');
848 * Show content license.
852 function showContentLicense()
854 if (Event::handle('StartShowContentLicense', array($this))) {
855 // TRANS: DT element for StatusNet site content license.
856 $this->element('dt', array('id' => 'site_content_license'), _('Site content license'));
857 $this->elementStart('dd', array('id' => 'site_content_license_cc'));
859 switch (common_config('license', 'type')) {
861 // TRANS: Content license displayed when license is set to 'private'.
862 // TRANS: %1$s is the site name.
863 $this->element('p', null, sprintf(_('Content and data of %1$s are private and confidential.'),
864 common_config('site', 'name')));
866 case 'allrightsreserved':
867 if (common_config('license', 'owner')) {
868 // TRANS: Content license displayed when license is set to 'allrightsreserved'.
869 // TRANS: %1$s is the copyright owner.
870 $this->element('p', null, sprintf(_('Content and data copyright by %1$s. All rights reserved.'),
871 common_config('license', 'owner')));
873 // TRANS: Content license displayed when license is set to 'allrightsreserved' and no owner is set.
874 $this->element('p', null, _('Content and data copyright by contributors. All rights reserved.'));
877 case 'cc': // fall through
879 $this->elementStart('p');
880 $this->element('img', array('id' => 'license_cc',
881 'src' => common_config('license', 'image'),
882 'alt' => common_config('license', 'title'),
886 // TRANS: license message in footer. %1$s is the site name, %2$s is a link to the license URL, with a licence name set in configuration.
887 $notice = _('All %1$s content and data are available under the %2$s license.');
888 $link = "<a class=\"license\" rel=\"external license\" href=\"" .
889 htmlspecialchars(common_config('license', 'url')) .
891 htmlspecialchars(common_config('license', 'title')) .
893 $this->raw(sprintf(htmlspecialchars($notice),
894 htmlspecialchars(common_config('site', 'name')),
896 $this->elementEnd('p');
900 $this->elementEnd('dd');
901 Event::handle('EndShowContentLicense', array($this));
906 * Return last modified, if applicable.
910 * @return string last modified http header
912 function lastModified()
914 // For comparison with If-Last-Modified
915 // If not applicable, return null
920 * Return etag, if applicable.
924 * @return string etag http header
932 * Return true if read only.
936 * @param array $args other arguments
938 * @return boolean is read only action?
941 function isReadOnly($args)
947 * Returns query argument or default value if not found
949 * @param string $key requested argument
950 * @param string $def default value to return if $key is not provided
952 * @return boolean is read only action?
954 function arg($key, $def=null)
956 if (array_key_exists($key, $this->args)) {
957 return $this->args[$key];
964 * Returns trimmed query argument or default value if not found
966 * @param string $key requested argument
967 * @param string $def default value to return if $key is not provided
969 * @return boolean is read only action?
971 function trimmed($key, $def=null)
973 $arg = $this->arg($key, $def);
974 return is_string($arg) ? trim($arg) : $arg;
980 * @param array $argarray is ignored since it's now passed in in prepare()
982 * @return boolean is read only action?
984 function handle($argarray=null)
986 header('Vary: Accept-Encoding,Cookie');
987 $lm = $this->lastModified();
988 $etag = $this->etag();
990 header('ETag: ' . $etag);
993 header('Last-Modified: ' . date(DATE_RFC1123, $lm));
994 if (array_key_exists('HTTP_IF_MODIFIED_SINCE', $_SERVER)) {
995 $if_modified_since = $_SERVER['HTTP_IF_MODIFIED_SINCE'];
996 $ims = strtotime($if_modified_since);
998 $if_none_match = (array_key_exists('HTTP_IF_NONE_MATCH', $_SERVER)) ?
999 $_SERVER['HTTP_IF_NONE_MATCH'] : null;
1000 if (!$if_none_match ||
1002 $this->_hasEtag($etag, $if_none_match)) {
1003 header('HTTP/1.1 304 Not Modified');
1004 // Better way to do this?
1013 * HasĀ etag? (private)
1015 * @param string $etag etag http header
1016 * @param string $if_none_match ifNoneMatch http header
1021 function _hasEtag($etag, $if_none_match)
1023 $etags = explode(',', $if_none_match);
1024 return in_array($etag, $etags) || in_array('*', $etags);
1028 * Boolean understands english (yes, no, true, false)
1030 * @param string $key query key we're interested in
1031 * @param string $def default value
1033 * @return boolean interprets yes/no strings as boolean
1035 function boolean($key, $def=false)
1037 $arg = strtolower($this->trimmed($key));
1039 if (is_null($arg)) {
1041 } else if (in_array($arg, array('true', 'yes', '1', 'on'))) {
1043 } else if (in_array($arg, array('false', 'no', '0'))) {
1051 * Integer value of an argument
1053 * @param string $key query key we're interested in
1054 * @param string $defValue optional default value (default null)
1055 * @param string $maxValue optional max value (default null)
1056 * @param string $minValue optional min value (default null)
1058 * @return integer integer value
1061 function int($key, $defValue=null, $maxValue=null, $minValue=null)
1063 $arg = strtolower($this->trimmed($key));
1065 if (is_null($arg) || !is_integer($arg)) {
1069 if (!is_null($maxValue)) {
1070 $arg = min($arg, $maxValue);
1073 if (!is_null($minValue)) {
1074 $arg = max($arg, $minValue);
1083 * @param string $msg error message to display
1084 * @param integer $code http error code, 500 by default
1089 function serverError($msg, $code=500)
1091 $action = $this->trimmed('action');
1092 common_debug("Server error '$code' on '$action': $msg", __FILE__);
1093 throw new ServerException($msg, $code);
1099 * @param string $msg error message to display
1100 * @param integer $code http error code, 400 by default
1105 function clientError($msg, $code=400)
1107 $action = $this->trimmed('action');
1108 common_debug("User error '$code' on '$action': $msg", __FILE__);
1109 throw new ClientException($msg, $code);
1113 * Returns the current URL
1115 * @return string current URL
1120 list($action, $args) = $this->returnToArgs();
1121 return common_local_url($action, $args);
1125 * Returns arguments sufficient for re-constructing URL
1127 * @return array two elements: action, other args
1130 function returnToArgs()
1132 $action = $this->trimmed('action');
1133 $args = $this->args;
1134 unset($args['action']);
1135 if (common_config('site', 'fancy')) {
1138 if (array_key_exists('submit', $args)) {
1139 unset($args['submit']);
1141 foreach (array_keys($_COOKIE) as $cookie) {
1142 unset($args[$cookie]);
1144 return array($action, $args);
1148 * Generate a menu item
1150 * @param string $url menu URL
1151 * @param string $text menu name
1152 * @param string $title title attribute, null by default
1153 * @param boolean $is_selected current menu item, false by default
1154 * @param string $id element id, null by default
1158 function menuItem($url, $text, $title=null, $is_selected=false, $id=null)
1160 // Added @id to li for some control.
1161 // XXX: We might want to move this to htmloutputter.php
1164 $lattrs['class'] = 'current';
1167 (is_null($id)) ? $lattrs : $lattrs['id'] = $id;
1169 $this->elementStart('li', $lattrs);
1170 $attrs['href'] = $url;
1172 $attrs['title'] = $title;
1174 $this->element('a', $attrs, $text);
1175 $this->elementEnd('li');
1179 * Generate pagination links
1181 * @param boolean $have_before is there something before?
1182 * @param boolean $have_after is there something after?
1183 * @param integer $page current page
1184 * @param string $action current action
1185 * @param array $args rest of query arguments
1189 // XXX: The messages in this pagination method only tailor to navigating
1190 // notices. In other lists, "Previous"/"Next" type navigation is
1191 // desirable, but not available.
1192 function pagination($have_before, $have_after, $page, $action, $args=null)
1194 // Does a little before-after block for next/prev page
1195 if ($have_before || $have_after) {
1196 $this->elementStart('dl', 'pagination');
1197 // TRANS: DT element for pagination (previous/next, etc.).
1198 $this->element('dt', null, _('Pagination'));
1199 $this->elementStart('dd', null);
1200 $this->elementStart('ul', array('class' => 'nav'));
1203 $pargs = array('page' => $page-1);
1204 $this->elementStart('li', array('class' => 'nav_prev'));
1205 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1207 // TRANS: Pagination message to go to a page displaying information more in the
1208 // TRANS: present than the currently displayed information.
1210 $this->elementEnd('li');
1213 $pargs = array('page' => $page+1);
1214 $this->elementStart('li', array('class' => 'nav_next'));
1215 $this->element('a', array('href' => common_local_url($action, $args, $pargs),
1217 // TRANS: Pagination message to go to a page displaying information more in the
1218 // TRANS: past than the currently displayed information.
1220 $this->elementEnd('li');
1222 if ($have_before || $have_after) {
1223 $this->elementEnd('ul');
1224 $this->elementEnd('dd');
1225 $this->elementEnd('dl');
1230 * An array of feeds for this action.
1232 * Returns an array of potential feeds for this action.
1234 * @return array Feed object to show in head and links
1243 * A design for this action
1245 * @return Design a design object to use
1248 function getDesign()
1250 return Design::siteDesign();
1254 * Check the session token.
1256 * Checks that the current form has the correct session token,
1257 * and throw an exception if it does not.
1262 // XXX: Finding this type of check with the same message about 50 times.
1263 // Possible to refactor?
1264 function checkSessionToken()
1267 $token = $this->trimmed('token');
1268 if (empty($token) || $token != common_session_token()) {
1269 $this->clientError(_('There was a problem with your session token.'));