forked from GNUsocial/gnu-social
2a4dc77a63
I used this hacky sed-command (run it from your GNU Social root, or change the first grep's path to where it actually lies) to do a rough fix on all ::staticGet calls and rename them to ::getKV sed -i -s -e '/DataObject::staticGet/I!s/::staticGet/::getKV/Ig' $(grep -R ::staticGet `pwd`/* | grep -v -e '^extlib' | grep -v DataObject:: |grep -v "function staticGet"|cut -d: -f1 |sort |uniq) If you're applying this, remember to change the Managed_DataObject and Memcached_DataObject function definitions of staticGet to getKV! This might of course take some getting used to, or modification fo StatusNet plugins, but the result is that all the static calls (to staticGet) are now properly made without breaking PHP Strict Standards. Standards are there to be followed (and they caused some very bad confusion when used with get_called_class) Reasonably any plugin or code that tests for the definition of 'GNUSOCIAL' or similar will take this change into consideration.
336 lines
10 KiB
PHP
336 lines
10 KiB
PHP
<?php
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/**
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* Action to let RSSCloud aggregators request update notification when
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* user profile feeds change.
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*
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* PHP version 5
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*
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* @category Plugin
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* @package StatusNet
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* @author Zach Copley <zach@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl.html AGPLv3
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* @link http://status.net/
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*
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* StatusNet - the distributed open-source microblogging tool
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* Copyright (C) 2009, 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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if (!defined('STATUSNET')) {
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exit(1);
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}
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/**
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* Action class to handle RSSCloud notification (subscription) requests
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*
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* @category Plugin
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* @package StatusNet
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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 RSSCloudRequestNotifyAction extends Action
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{
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/**
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* Initialization.
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*
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* @param array $args Web and URL arguments
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*
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* @return boolean false if user doesn't exist
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*/
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function prepare($args)
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{
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parent::prepare($args);
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$this->ip = $_SERVER['REMOTE_ADDR'];
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$this->port = $this->arg('port');
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$this->path = $this->arg('path');
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if ($this->path[0] != '/') {
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$this->path = '/' . $this->path;
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}
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$this->protocol = $this->arg('protocol');
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$this->procedure = $this->arg('notifyProcedure');
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$this->domain = $this->arg('domain');
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$this->feeds = $this->getFeeds();
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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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* Checks for all the required parameters for a subscription,
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* validates that the feed being subscribed to is real, and then
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* saves the subsctiption.
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*
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* @param array $args $_REQUEST data (unused)
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*
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* @return void
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*/
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function handle($args)
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{
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parent::handle($args);
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if ($_SERVER['REQUEST_METHOD'] != 'POST') {
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// TRANS: Form validation error displayed when POST is not used.
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$this->showResult(false, _m('Request must be POST.'));
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return;
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}
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$missing = array();
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if (empty($this->port)) {
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$missing[] = 'port';
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}
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if (empty($this->path)) {
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$missing[] = 'path';
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}
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if (empty($this->protocol)) {
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$missing[] = 'protocol';
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} else if (strtolower($this->protocol) != 'http-post') {
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// TRANS: Form validation error displayed when HTTP POST is not used.
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$msg = _m('Only HTTP POST notifications are supported at this time.');
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$this->showResult(false, $msg);
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return;
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}
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if (!isset($this->procedure)) {
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$missing[] = 'notifyProcedure';
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}
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if (!empty($missing)) {
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// TRANS: List separator.
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$separator = _m('SEPARATOR',', ');
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// TRANS: Form validation error displayed when a request body is missing expected parameters.
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// TRANS: %s is a list of parameters separated by a list separator (default: ", ").
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$msg = sprintf(_m('The following parameters were missing from the request body: %s.'),implode($separator, $missing));
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$this->showResult(false, $msg);
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return;
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}
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if (empty($this->feeds)) {
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// TRANS: Form validation error displayed when not providing any valid profile feed URLs.
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$msg = _m('You must provide at least one valid profile feed URL ' .
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'(url1, url2, url3 ... urlN).');
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$this->showResult(false, $msg);
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return;
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}
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// We have to validate everything before saving anything.
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// We only return one success or failure no matter how
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// many feeds the subscriber is trying to subscribe to
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foreach ($this->feeds as $feed) {
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if (!$this->validateFeed($feed)) {
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$nh = $this->getNotifyUrl();
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common_log(LOG_WARNING,
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"RSSCloud plugin - $nh tried to subscribe to invalid feed: $feed");
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// TRANS: Form validation error displayed when not providing a valid feed URL.
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$msg = _m('Feed subscription failed: Not a valid feed.');
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$this->showResult(false, $msg);
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return;
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}
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if (!$this->testNotificationHandler($feed)) {
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// TRANS: Form validation error displayed when feed subscription failed.
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$msg = _m('Feed subscription failed: ' .
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'Notification handler does not respond correctly.');
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$this->showResult(false, $msg);
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return;
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}
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}
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foreach ($this->feeds as $feed) {
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$this->saveSubscription($feed);
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}
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// XXX: What to do about deleting stale subscriptions?
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// 25 hours seems harsh. WordPress doesn't ever remove
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// subscriptions.
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// TRANS: Success message after subscribing to one or more feeds.
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$msg = _m('Thanks for the subscription. ' .
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'When the feed(s) update(s), you will be notified.');
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$this->showResult(true, $msg);
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}
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/**
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* Validate that the requested feed is one we serve
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* up via RSSCloud.
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*
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* @param string $feed the feed in question
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*
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* @return void
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*/
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function validateFeed($feed)
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{
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$user = $this->userFromFeed($feed);
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if (empty($user)) {
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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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* Pull all of the urls (url1, url2, url3...urlN) that
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* the subscriber wants to subscribe to.
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*
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* @return array $feeds the list of feeds
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*/
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function getFeeds()
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{
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$feeds = array();
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while (list($key, $feed) = each($this->args)) {
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if (preg_match('/^url\d*$/', $key)) {
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$feeds[] = $feed;
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}
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}
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return $feeds;
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}
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/**
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* Test that a notification handler is there and is reponding
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* correctly. This is called before adding a subscription.
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*
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* @param string $feed the feed to verify
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*
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* @return boolean success result
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*/
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function testNotificationHandler($feed)
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{
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$notifyUrl = $this->getNotifyUrl();
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$notifier = new RSSCloudNotifier();
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if (isset($this->domain)) {
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// 'domain' param set, so we have to use GET and send a challenge
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common_log(LOG_INFO,
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'RSSCloud plugin - Testing notification handler with challenge: ' .
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$notifyUrl);
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return $notifier->challenge($notifyUrl, $feed);
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} else {
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common_log(LOG_INFO, 'RSSCloud plugin - Testing notification handler: ' .
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$notifyUrl);
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return $notifier->postUpdate($notifyUrl, $feed);
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}
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}
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/**
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* Build the URL for the notification handler based on the
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* parameters passed in with the subscription request.
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*
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* @return string notification handler url
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*/
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function getNotifyUrl()
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{
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if (isset($this->domain)) {
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return 'http://' . $this->domain . ':' . $this->port . $this->path;
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} else {
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return 'http://' . $this->ip . ':' . $this->port . $this->path;
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}
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}
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/**
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* Uses the nickname part of the subscribed feed URL to figure out
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* whethere there's really a user with such a feed. Used to
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* validate feeds before adding a subscription.
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*
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* @param string $feed the feed in question
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*
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* @return boolean success
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*/
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function userFromFeed($feed)
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{
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// We only do canonical RSS2 profile feeds (specified by ID), e.g.:
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// http://www.example.com/api/statuses/user_timeline/2.rss
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$path = common_path('api/statuses/user_timeline/');
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$valid = '%^' . $path . '(?<id>.*)\.rss$%';
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if (preg_match($valid, $feed, $matches)) {
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$user = User::getKV('id', $matches['id']);
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if (!empty($user)) {
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return $user;
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}
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}
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return false;
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}
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/**
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* Save an RSSCloud subscription
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*
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* @param string $feed a valid profile feed
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*
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* @return boolean success result
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*/
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function saveSubscription($feed)
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{
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$user = $this->userFromFeed($feed);
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$notifyUrl = $this->getNotifyUrl();
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$sub = RSSCloudSubscription::getSubscription($user->id, $notifyUrl);
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if ($sub) {
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common_log(LOG_INFO, "RSSCloud plugin - $notifyUrl refreshed subscription" .
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" to user $user->nickname (id: $user->id).");
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} else {
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$sub = new RSSCloudSubscription();
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$sub->subscribed = $user->id;
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$sub->url = $notifyUrl;
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$sub->created = common_sql_now();
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if (!$sub->insert()) {
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common_log_db_error($sub, 'INSERT', __FILE__);
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return false;
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}
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common_log(LOG_INFO, "RSSCloud plugin - $notifyUrl subscribed" .
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" to user $user->nickname (id: $user->id)");
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}
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return true;
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}
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/**
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* Show an XML message indicating the subscription
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* was successful or failed.
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*
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* @param boolean $success whether it was good or bad
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* @param string $msg the message to output
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*
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* @return boolean success result
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*/
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function showResult($success, $msg)
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{
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$this->startXML();
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$this->elementStart('notifyResult',
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array('success' => ($success) ? 'true' : 'false',
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'msg' => $msg));
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$this->endXML();
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}
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}
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