forked from GNUsocial/gnu-social
334 lines
9.5 KiB
PHP
334 lines
9.5 KiB
PHP
<?php
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/**
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* StatusNet, the distributed open-source microblogging tool
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*
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* Show a single notice
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*
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* PHP version 5
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*
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* LICENCE: This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @category Personal
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @copyright 2008-2011 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
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}
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require_once INSTALLDIR.'/lib/personalgroupnav.php';
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require_once INSTALLDIR.'/lib/noticelist.php';
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require_once INSTALLDIR.'/lib/feedlist.php';
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/**
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* Show a single notice
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*
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* @category Personal
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* @package StatusNet
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* @author Evan Prodromou <evan@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
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class ShownoticeAction extends Action
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{
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/**
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* Notice object to show
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*/
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var $notice = null;
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/**
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* Profile of the notice object
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*/
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var $profile = null;
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/**
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* Avatar of the profile of the notice object
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*/
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var $avatar = null;
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/**
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* Load attributes based on database arguments
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*
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* Loads all the DB stuff
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*
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* @param array $args $_REQUEST array
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*
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* @return success flag
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*/
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protected function prepare(array $args=array())
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{
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parent::prepare($args);
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if ($this->boolean('ajax')) {
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StatusNet::setApi(true);
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}
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$this->notice = $this->getNotice();
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$cur = common_current_user();
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if (!empty($cur)) {
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$curProfile = $cur->getProfile();
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} else {
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$curProfile = null;
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}
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if (!$this->notice->inScope($curProfile)) {
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// TRANS: Client exception thrown when trying a view a notice the user has no access to.
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throw new ClientException(_('Not available.'), 403);
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}
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$this->profile = $this->notice->getProfile();
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if (empty($this->profile)) {
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// TRANS: Server error displayed trying to show a notice without a connected profile.
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$this->serverError(_('Notice has no profile.'), 500);
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}
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$this->user = User::getKV('id', $this->profile->id);
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try {
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$this->avatar = $this->profile->getAvatar(AVATAR_PROFILE_SIZE);
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} catch (Exception $e) {
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$this->avatar = null;
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}
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return true;
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}
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/**
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* Fetch the notice to show. This may be overridden by child classes to
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* customize what we fetch without duplicating all of the prepare() method.
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*
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* @return Notice
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*/
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protected function getNotice()
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{
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$id = $this->arg('notice');
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$notice = Notice::getKV('id', $id);
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if (!$notice instanceof Notice) {
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// Did we used to have it, and it got deleted?
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$deleted = Deleted_notice::getKV($id);
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if ($deleted instanceof Deleted_notice) {
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// TRANS: Client error displayed trying to show a deleted notice.
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$this->clientError(_('Notice deleted.'), 410);
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} else {
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// TRANS: Client error displayed trying to show a non-existing notice.
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$this->clientError(_('No such notice.'), 404);
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}
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return false;
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}
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return $notice;
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}
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/**
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* Is this action read-only?
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*
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* @return boolean true
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*/
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function isReadOnly($args)
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{
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return true;
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}
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/**
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* Last-modified date for page
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*
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* When was the content of this page last modified? Based on notice,
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* profile, avatar.
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*
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* @return int last-modified date as unix timestamp
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*/
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function lastModified()
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{
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return max(strtotime($this->notice->modified),
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strtotime($this->profile->modified),
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($this->avatar) ? strtotime($this->avatar->modified) : 0);
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}
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/**
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* An entity tag for this page
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*
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* Shows the ETag for the page, based on the notice ID and timestamps
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* for the notice, profile, and avatar. It's weak, since we change
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* the date text "one hour ago", etc.
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*
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* @return string etag
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*/
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function etag()
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{
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$avtime = ($this->avatar) ?
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strtotime($this->avatar->modified) : 0;
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return 'W/"' . implode(':', array($this->arg('action'),
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common_user_cache_hash(),
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common_language(),
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$this->notice->id,
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strtotime($this->notice->created),
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strtotime($this->profile->modified),
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$avtime)) . '"';
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}
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/**
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* Title of the page
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*
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* @return string title of the page
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*/
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function title()
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{
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$base = $this->profile->getFancyName();
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// TRANS: Title of the page that shows a notice.
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// TRANS: %1$s is a user name, %2$s is the notice creation date/time.
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return sprintf(_('%1$s\'s status on %2$s'),
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$base,
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common_exact_date($this->notice->created));
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}
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/**
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* Handle input
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*
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* Only handles get, so just show the page.
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*
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* @param array $args $_REQUEST data (unused)
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*
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* @return void
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*/
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protected function handle()
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{
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parent::handle();
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if ($this->boolean('ajax')) {
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$this->showAjax();
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} else {
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if ($this->notice->is_local == Notice::REMOTE) {
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try {
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$target = $this->notice->getUrl()
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if ($target != $this->selfUrl()) {
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common_redirect($target, 301);
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}
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} catch (InvalidUrlException $e) {
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common_debug('ShownoticeAction could not redirect to remote notice with id='.$this->notice->id . '. Falling back to showPage().');
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}
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}
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$this->showPage();
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}
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}
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/**
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* Fill the content area of the page
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*
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* Shows a single notice list item.
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*
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* @return void
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*/
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function showContent()
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{
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$this->elementStart('ol', array('class' => 'notices xoxo'));
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$nli = new SingleNoticeItem($this->notice, $this);
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$nli->show();
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$this->elementEnd('ol');
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}
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function showAjax()
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{
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$this->startHTML('text/xml;charset=utf-8');
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$this->elementStart('head');
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// TRANS: Title for page that shows a notice.
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$this->element('title', null, _m('TITLE','Notice'));
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$this->elementEnd('head');
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$this->elementStart('body');
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$nli = new NoticeListItem($this->notice, $this);
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$nli->show();
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$this->elementEnd('body');
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$this->endHTML();
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}
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/**
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* Don't show page notice
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*
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* @return void
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*/
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function showPageNoticeBlock()
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{
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}
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/**
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* Don't show aside
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*
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* @return void
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*/
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function showAside() {
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}
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/**
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* Extra <head> content
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*
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* We show the microid(s) for the author, if any.
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*
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* @return void
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*/
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function extraHead()
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{
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$user = User::getKV($this->profile->id);
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if (!$user) {
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return;
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}
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if ($user->emailmicroid && $user->email && $this->notice->uri) {
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$id = new Microid('mailto:'. $user->email,
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$this->notice->uri);
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$this->element('meta', array('name' => 'microid',
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'content' => $id->toString()));
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}
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$this->element('link',array('rel'=>'alternate',
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'type'=>'application/json+oembed',
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'href'=>common_local_url(
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'oembed',
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array(),
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array('format'=>'json','url'=>$this->notice->uri)),
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'title'=>'oEmbed'),null);
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$this->element('link',array('rel'=>'alternate',
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'type'=>'text/xml+oembed',
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'href'=>common_local_url(
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'oembed',
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array(),
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array('format'=>'xml','url'=>$this->notice->uri)),
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'title'=>'oEmbed'),null);
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// Extras to aid in sharing notices to Facebook
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$avatarUrl = $this->profile->avatarUrl(AVATAR_PROFILE_SIZE);
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$this->element('meta', array('property' => 'og:image',
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'content' => $avatarUrl));
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$this->element('meta', array('property' => 'og:description',
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'content' => $this->notice->content));
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}
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}
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// @todo FIXME: Class documentation missing.
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class SingleNoticeItem extends DoFollowListItem
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{
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function avatarSize()
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{
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return AVATAR_STREAM_SIZE;
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}
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}
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