Twitter removed Atom feeds in API v1.1, so there is no way to mirror a feed without screen-scraping or registering a dev account with them.
179 lines
5.4 KiB
PHP
179 lines
5.4 KiB
PHP
<?php
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/**
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2010, StatusNet, Inc.
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*
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* 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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* PHP version 5
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*
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* @category Action
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* @package StatusNet
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* @author Brion Vibber <brion@status.net>
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* @copyright 2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
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* @link http://status.net/
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*/
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if (!defined('STATUSNET')) {
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exit(1);
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}
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/**
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* Takes parameters:
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*
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* - feed: a profile ID
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* - token: session token to prevent CSRF attacks
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* - ajax: boolean; whether to return Ajax or full-browser results
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*
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* Only works if the current user is logged in.
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*
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* @category Action
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* @package StatusNet
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* @copyright 2010 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html AGPLv3
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* @link http://status.net/
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*/
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abstract class BaseMirrorAction extends Action
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{
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var $user;
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var $profile;
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/**
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* Check pre-requisites and instantiate attributes
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*
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* @param Array $args array of arguments (URL, GET, POST)
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*
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* @return boolean success flag
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*/
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function prepare($args)
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{
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parent::prepare($args);
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return $this->sharedBoilerplate();
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}
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protected function validateFeedUrl($url)
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{
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if (common_valid_http_url($url)) {
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return $url;
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} else {
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// TRANS: Client error displayed when entering an invalid URL for a feed.
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// TRANS: %s is the invalid feed URL.
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$this->clientError(sprintf(_m("Invalid feed URL: %s."), $url));
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}
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}
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protected function validateProfile($id)
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{
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$id = intval($id);
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$profile = Profile::getKV('id', $id);
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if ($profile && $profile->id != $this->user->id) {
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return $profile;
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}
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// TRANS: Error message returned to user when setting up feed mirroring,
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// TRANS: but we were unable to resolve the given URL to a working feed.
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$this->clientError(_m('Invalid profile for mirroring.'));
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}
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/**
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*
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* @param string $url
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* @return Profile
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*/
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protected function profileForFeed($url)
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{
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try {
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// Maybe we got a web page?
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$oprofile = Ostatus_profile::ensureProfileURL($url);
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} catch (Exception $e) {
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// Direct feed URL?
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$oprofile = Ostatus_profile::ensureFeedURL($url);
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}
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if ($oprofile->isGroup()) {
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// TRANS: Client error displayed when trying to mirror a GNU social group feed.
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$this->clientError(_m('Cannot mirror a GNU social group at this time.'));
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}
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$this->oprofile = $oprofile; // @todo FIXME: ugly side effect :D
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return $oprofile->localProfile();
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}
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/**
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* @todo FIXME: none of this belongs in end classes
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* this stuff belongs in shared code!
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*/
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function sharedBoilerplate()
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{
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// Only allow POST requests
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if ($_SERVER['REQUEST_METHOD'] != 'POST') {
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// TRANS: Client error displayed when trying to use another method than POST.
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$this->clientError(_m('This action only accepts POST requests.'));
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return false;
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}
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// CSRF protection
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$token = $this->trimmed('token');
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if (!$token || $token != common_session_token()) {
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// TRANS: Client error displayed when the session token does not match or is not given.
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$this->clientError(_m('There was a problem with your session token.'.
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' Try again, please.'));
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return false;
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}
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// Only for logged-in users
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$this->user = common_current_user();
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if (empty($this->user)) {
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// TRANS: Error message displayed when trying to perform an action that requires a logged in user.
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$this->clientError(_m('Not logged in.'));
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return false;
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}
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return true;
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}
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/**
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* Handle request
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*
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* Does the subscription and returns results.
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*
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* @param Array $args unused.
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*
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* @return void
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*/
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function handle($args)
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{
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// Throws exception on error
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$this->saveMirror();
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if ($this->boolean('ajax')) {
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$this->startHTML('text/xml;charset=utf-8');
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$this->elementStart('head');
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// TRANS: Page title for subscribed feed mirror.
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$this->element('title', null, _m('Subscribed'));
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$this->elementEnd('head');
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$this->elementStart('body');
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$unsubscribe = new EditMirrorForm($this, $this->profile);
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$unsubscribe->show();
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$this->elementEnd('body');
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$this->endHTML();
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} else {
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$url = common_local_url('mirrorsettings');
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common_redirect($url, 303);
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}
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}
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abstract function saveMirror();
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}
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