218 lines
7.1 KiB
PHP
218 lines
7.1 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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/**
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* @package OStatusPlugin
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* @author James Walker <james@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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class UsersalmonAction extends SalmonAction
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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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$id = $this->trimmed('id');
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if (!$id) {
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$this->clientError(_('No ID.'));
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}
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$this->user = User::staticGet('id', $id);
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if (empty($this->user)) {
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$this->clientError(_('No such user.'));
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}
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return true;
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}
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/**
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* We've gotten a post event on the Salmon backchannel, probably a reply.
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*
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* @todo validate if we need to handle this post, then call into
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* ostatus_profile's general incoming-post handling.
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*/
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function handlePost()
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{
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common_log(LOG_INFO, "Received post of '{$this->activity->objects[0]->id}' from '{$this->activity->actor->id}'");
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// @fixme: process all activity objects?
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switch ($this->activity->objects[0]->type) {
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case ActivityObject::ARTICLE:
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case ActivityObject::BLOGENTRY:
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case ActivityObject::NOTE:
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case ActivityObject::STATUS:
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case ActivityObject::COMMENT:
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break;
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default:
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throw new ClientException("Can't handle that kind of post.");
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}
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// Notice must either be a) in reply to a notice by this user
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// or b) to the attention of this user
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// or c) in reply to a notice to the attention of this user
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$context = $this->activity->context;
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if (!empty($context->replyToID)) {
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common_log(LOG_DEBUG, "Got a notice in reply to '{$context->replyToID}' ({$context->replyToUrl})");
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$notice = Notice::staticGet('uri', $context->replyToID);
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if (empty($notice)) {
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throw new ClientException("In reply to unknown notice");
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}
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if ($notice->profile_id != $this->user->id &&
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!in_array($this->user->id, $notice->getReplies())) {
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throw new ClientException("In reply to a notice not by this user and not mentioning this user");
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}
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} else if (!empty($context->attention)) {
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if (!in_array($this->user->uri, $context->attention) &&
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!in_array(common_profile_url($this->user->nickname), $context->attention)) {
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common_log(LOG_ERR, "{$this->user->uri} not in attention list (".implode(',', $context->attention).")");
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throw new ClientException("To the attention of user(s) not including this one!");
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}
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} else {
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throw new ClientException("Not to anyone in reply to anything!");
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}
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$existing = Notice::staticGet('uri', $this->activity->objects[0]->id);
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if (!empty($existing)) {
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common_log(LOG_ERR, "Not saving notice '{$existing->uri}'; already exists.");
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return;
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}
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$this->saveNotice();
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}
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/**
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* We've gotten a follow/subscribe notification from a remote user.
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* Save a subscription relationship for them.
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*/
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function handleFollow()
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{
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$oprofile = $this->ensureProfile();
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if ($oprofile) {
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common_log(LOG_INFO, "Setting up subscription from remote {$oprofile->uri} to local {$this->user->nickname}");
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Subscription::start($oprofile->localProfile(),
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$this->user->getProfile());
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} else {
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common_log(LOG_INFO, "Can't set up subscription from remote; missing profile.");
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}
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}
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/**
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* We've gotten an unfollow/unsubscribe notification from a remote user.
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* Check if we have a subscription relationship for them and kill it.
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*
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* @fixme probably catch exceptions on fail?
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*/
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function handleUnfollow()
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{
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$oprofile = $this->ensureProfile();
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if ($oprofile) {
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common_log(LOG_INFO, "Canceling subscription from remote {$oprofile->uri} to local {$this->user->nickname}");
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Subscription::cancel($oprofile->localProfile(), $this->user->getProfile());
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} else {
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common_log(LOG_ERR, "Can't cancel subscription from remote, didn't find the profile");
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}
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}
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/**
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* Remote user likes one of our posts.
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* Confirm the post is ours, and save a local favorite event.
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*/
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function handleFavorite()
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{
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$notice = $this->getNotice($this->activity->objects[0]);
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$profile = $this->ensureProfile()->localProfile();
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$old = Fave::pkeyGet(array('user_id' => $profile->id,
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'notice_id' => $notice->id));
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if (!empty($old)) {
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throw new ClientException("We already know that's a fave!");
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}
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if (!Fave::addNew($profile, $notice)) {
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throw new ClientException("Could not save new favorite.");
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}
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}
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/**
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* Remote user doesn't like one of our posts after all!
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* Confirm the post is ours, and save a local favorite event.
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*/
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function handleUnfavorite()
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{
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$notice = $this->getNotice($this->activity->objects[0]);
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$profile = $this->ensureProfile()->localProfile();
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$fave = Fave::pkeyGet(array('user_id' => $profile->id,
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'notice_id' => $notice->id));
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if (empty($fave)) {
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throw new ClientException("Notice wasn't favorited!");
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}
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$fave->delete();
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}
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/**
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* @param ActivityObject $object
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* @return Notice
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* @throws ClientException on invalid input
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*/
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function getNotice($object)
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{
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if (!$object) {
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throw new ClientException("Can't favorite/unfavorite without an object.");
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}
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switch ($object->type) {
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case ActivityObject::ARTICLE:
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case ActivityObject::BLOGENTRY:
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case ActivityObject::NOTE:
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case ActivityObject::STATUS:
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case ActivityObject::COMMENT:
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break;
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default:
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throw new ClientException("Can't handle that kind of object for liking/faving.");
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}
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$notice = Notice::staticGet('uri', $object->id);
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if (empty($notice)) {
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throw new ClientException("Notice with ID $object->id unknown.");
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}
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if ($notice->profile_id != $this->user->id) {
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throw new ClientException("Notice with ID $object->id not posted by $this->user->id.");
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}
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return $notice;
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}
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}
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