257 lines
8.3 KiB
PHP
257 lines
8.3 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 notice (as a Twitter-style status)
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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 API
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Evan Prodromou <evan@status.net>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author Tom Blankenship <mac65@mac65.com>
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* @author Mike Cochrane <mikec@mikenz.geek.nz>
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* @author Robin Millette <robin@millette.info>
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* @author Zach Copley <zach@status.net>
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* @copyright 2009 StatusNet, Inc.
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* @copyright 2009 Free Software Foundation, Inc http://www.fsf.org
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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('GNUSOCIAL')) { exit(1); }
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/**
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* Returns the notice specified by id as a Twitter-style status and inline user
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*
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* @category API
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* @package StatusNet
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* @author Craig Andrews <candrews@integralblue.com>
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* @author Evan Prodromou <evan@status.net>
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* @author Jeffery To <jeffery.to@gmail.com>
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* @author Tom Blankenship <mac65@mac65.com>
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* @author Mike Cochrane <mikec@mikenz.geek.nz>
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* @author Robin Millette <robin@millette.info>
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* @author Zach Copley <zach@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 ApiStatusesShowAction extends ApiPrivateAuthAction
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{
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var $notice_id = null;
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var $notice = null;
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/**
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* Take arguments for running
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*
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* @param array $args $_REQUEST args
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*
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* @return boolean 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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// 'id' is an undocumented parameter in Twitter's API. Several
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// clients make use of it, so we support it too.
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// show.json?id=12345 takes precedence over /show/12345.json
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$this->notice_id = (int)$this->trimmed('id');
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$this->notice = null;
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try {
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$this->notice = Notice::getByID($this->notice_id);
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} catch (NoResultException $e) {
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// No such notice was found, maybe it was deleted?
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$deleted = null;
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Event::handle('IsNoticeDeleted', array($this->notice_id, &$deleted));
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if ($deleted === true) {
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// TRANS: Client error displayed trying to show a deleted notice.
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throw new ClientException(_('Notice deleted.'), 410);
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}
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// TRANS: Client error displayed trying to show a non-existing notice.
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throw new ClientException(_('No such notice.'), 404);
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}
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if (!$this->notice->inScope($this->scoped)) {
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// TRANS: Client exception thrown when trying a view a notice the user has no access to.
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throw new ClientException(_('Access restricted.'), 403);
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}
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return true;
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}
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/**
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* Handle the request
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*
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* Check the format and show the notice
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*
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* @return void
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*/
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protected function handle()
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{
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parent::handle();
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if (!in_array($this->format, array('xml', 'json', 'atom'))) {
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// TRANS: Client error displayed when coming across a non-supported API method.
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$this->clientError(_('API method not found.'), 404);
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}
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switch ($_SERVER['REQUEST_METHOD']) {
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case 'GET':
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$this->showNotice();
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break;
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case 'DELETE':
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$this->deleteNotice();
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break;
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default:
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// TRANS: Client error displayed calling an unsupported HTTP error in API status show.
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$this->clientError(_('HTTP method not supported.'), 405);
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}
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}
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/**
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* Show the notice
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*
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* @return void
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*/
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function showNotice()
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{
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if (!empty($this->notice)) {
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switch ($this->format) {
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case 'xml':
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$this->showSingleXmlStatus($this->notice);
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break;
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case 'json':
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$this->show_single_json_status($this->notice);
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break;
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case 'atom':
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$this->showSingleAtomStatus($this->notice);
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break;
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default:
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// TRANS: Exception thrown requesting an unsupported notice output format.
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// TRANS: %s is the requested output format.
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throw new Exception(sprintf(_("Unsupported format: %s."), $this->format));
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}
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} else {
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// XXX: Twitter just sets a 404 header and doens't bother
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// to return an err msg
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$deleted = Deleted_notice::getKV($this->notice_id);
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if (!empty($deleted)) {
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$this->clientError(
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// TRANS: Client error displayed requesting a deleted status.
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_('Status deleted.'),
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410,
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$this->format
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);
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} else {
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$this->clientError(
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// TRANS: Client error displayed requesting a status with an invalid ID.
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_('No status with that ID found.'),
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404,
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$this->format
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);
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}
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}
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}
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/**
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* We expose AtomPub here, so non-GET/HEAD reqs must be read/write.
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*
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* @param array $args other arguments
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*
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* @return boolean true
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*/
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function isReadOnly($args)
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{
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return ($_SERVER['REQUEST_METHOD'] == 'GET' || $_SERVER['REQUEST_METHOD'] == 'HEAD');
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}
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/**
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* When was this notice last modified?
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*
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* @return string datestamp of the latest notice in the stream
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*/
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function lastModified()
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{
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if (!empty($this->notice)) {
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return strtotime($this->notice->created);
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}
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return null;
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}
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/**
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* An entity tag for this notice
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*
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* Returns an Etag based on the action name, language, and
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* timestamps of the notice
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*
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* @return string etag
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*/
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function etag()
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{
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if (!empty($this->notice)) {
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return '"' . implode(
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':',
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array($this->arg('action'),
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common_user_cache_hash($this->auth_user),
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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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)
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. '"';
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}
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return null;
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}
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function deleteNotice()
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{
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if ($this->format != 'atom') {
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// TRANS: Client error displayed when trying to delete a notice not using the Atom format.
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$this->clientError(_('Can only delete using the Atom format.'));
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}
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if (empty($this->auth_user) ||
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($this->notice->profile_id != $this->auth_user->id &&
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!$this->auth_user->hasRight(Right::DELETEOTHERSNOTICE))) {
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// TRANS: Client error displayed when a user has no rights to delete notices of other users.
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$this->clientError(_('Cannot delete this notice.'), 403);
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}
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if (Event::handle('StartDeleteOwnNotice', array($this->auth_user, $this->notice))) {
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$this->notice->deleteAs($this->scoped);
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Event::handle('EndDeleteOwnNotice', array($this->auth_user, $this->notice));
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}
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// @fixme is there better output we could do here?
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header('HTTP/1.1 200 OK');
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header('Content-Type: text/plain');
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// TRANS: Confirmation of notice deletion in API. %d is the ID (number) of the deleted notice.
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print(sprintf(_('Deleted notice %d'), $this->notice->id));
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print("\n");
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}
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}
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