forked from GNUsocial/gnu-social
273 lines
9.5 KiB
PHP
273 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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* 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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if (!defined('GNUSOCIAL')) { exit(1); }
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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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class UsersalmonAction extends SalmonAction
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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 = $this->trimmed('id');
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if (!$id) {
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// TRANS: Client error displayed trying to perform an action without providing an ID.
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$this->clientError(_m('No ID.'));
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}
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$this->user = User::getKV('id', $id);
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if (!$this->user instanceof User) {
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// TRANS: Client error displayed when referring to a non-existing user.
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$this->clientError(_m('No such user.'));
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}
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$this->target = $this->user->getProfile();
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return true;
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}
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/**
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* We've gotten a post event on the Salmon backchannel, probably a reply.
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*
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* @todo validate if we need to handle this post, then call into
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* ostatus_profile's general incoming-post handling.
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*/
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function handlePost()
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{
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common_log(LOG_INFO, "Received post of '{$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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// TRANS: Client exception thrown when an undefied activity is performed.
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throw new ClientException(_m('Cannot 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) in reply to a notice to the attention of this user
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// or c) to the attention of this user
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$context = $this->activity->context;
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$notice = false;
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if (!empty($context->replyToID)) {
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$notice = Notice::getKV('uri', $context->replyToID);
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}
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if ($notice instanceof Notice &&
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($notice->profile_id == $this->target->id ||
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array_key_exists($this->target->id, $notice->getReplies())))
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{
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// In reply to a notice either from or mentioning this user.
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} elseif (!empty($context->attention) &&
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array_key_exists($this->target->getUri(), $context->attention)) {
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// To the attention of this user.
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} else {
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// TRANS: Client exception.
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throw new ClientException(_m('Not to anyone in reply to anything.'));
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}
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$existing = Notice::getKV('uri', $this->activity->objects[0]->id);
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if ($existing instanceof Notice) {
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common_log(LOG_ERR, "Not saving notice with duplicate URI '".$existing->getUri()."' (seems it already exists).");
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return;
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}
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$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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common_log(LOG_INFO, sprintf('Setting up subscription from remote %s to local %s', $this->oprofile->getUri(), $this->target->getNickname()));
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Subscription::start($this->actor, $this->target);
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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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common_log(LOG_INFO, sprintf('Canceling subscription from remote %s to local %s', $this->oprofile->getUri(), $this->target->getNickname()));
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try {
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Subscription::cancel($this->actor, $this->target);
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} catch (NoProfileException $e) {
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common_debug('Could not find profile for Subscription: '.$e->getMessage());
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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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$old = Fave::pkeyGet(array('user_id' => $this->actor->id,
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'notice_id' => $notice->id));
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if ($old instanceof Fave) {
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// TRANS: Client exception.
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throw new AlreadyFulfilledException(_m('This is already a favorite.'));
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}
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if (!Fave::addNew($this->actor, $notice)) {
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// TRANS: Client exception.
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throw new ClientException(_m('Could not save new favorite.'));
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}
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}
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/**
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* Remote user doesn't like one of our posts after all!
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* Confirm the post is ours, and save a local favorite event.
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*/
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function handleUnfavorite()
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{
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$notice = $this->getNotice($this->activity->objects[0]);
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$fave = Fave::pkeyGet(array('user_id' => $this->actor->id,
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'notice_id' => $notice->id));
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if (!$fave instanceof Fave) {
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// TRANS: Client exception.
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throw new AlreadyFulfilledException(_m('Notice was not favorited!'));
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}
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$fave->delete();
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}
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function handleTag()
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{
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if ($this->activity->target->type == ActivityObject::_LIST) {
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if ($this->activity->objects[0]->type != ActivityObject::PERSON) {
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// TRANS: Client exception.
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throw new ClientException(_m('Not a person object.'));
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}
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// this is a peopletag
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$tagged = User::getKV('uri', $this->activity->objects[0]->id);
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if (!$tagged instanceof User) {
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// TRANS: Client exception.
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throw new ClientException(_m('Unidentified profile being listed.'));
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}
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if ($tagged->id !== $this->target->id) {
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// TRANS: Client exception.
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throw new ClientException(_m('This user is not the one being listed.'));
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}
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// save the list
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$list = Ostatus_profile::ensureActivityObjectProfile($this->activity->target);
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$ptag = $list->localPeopletag();
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$result = Profile_tag::setTag($ptag->tagger, $tagged->id, $ptag->tag);
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if (!$result) {
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// TRANS: Client exception.
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throw new ClientException(_m('The listing could not be saved.'));
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}
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}
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}
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function handleUntag()
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{
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if ($this->activity->target->type == ActivityObject::_LIST) {
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if ($this->activity->objects[0]->type != ActivityObject::PERSON) {
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// TRANS: Client exception.
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throw new ClientException(_m('Not a person object.'));
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}
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// this is a peopletag
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$tagged = User::getKV('uri', $this->activity->objects[0]->id);
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if (!$tagged instanceof User) {
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// TRANS: Client exception.
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throw new ClientException(_m('Unidentified profile being unlisted.'));
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}
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if ($tagged->id !== $this->target->id) {
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// TRANS: Client exception.
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throw new ClientException(_m('This user is not the one being unlisted.'));
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}
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// save the list
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$list = Ostatus_profile::ensureActivityObjectProfile($this->activity->target);
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$ptag = $list->localPeopletag();
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$result = Profile_tag::unTag($ptag->tagger, $tagged->id, $ptag->tag);
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if (!$result) {
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// TRANS: Client exception.
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throw new ClientException(_m('The listing could not be deleted.'));
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}
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}
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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(ActivityObject $object)
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{
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switch ($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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// TRANS: Client exception.
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throw new ClientException(_m('Cannot handle that kind of object for liking/faving.'));
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}
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$notice = Notice::getKV('uri', $object->id);
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if (!$notice instanceof Notice) {
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// TRANS: Client exception. %s is an object ID.
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throw new ClientException(sprintf(_m('Notice with ID %s unknown.'),$object->id));
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}
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if ($notice->profile_id != $this->target->id) {
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// TRANS: Client exception. %1$s is a notice ID, %2$s is a user ID.
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throw new ClientException(sprintf(_m('Notice with ID %1$s not posted by %2$s.'), $object->id, $this->target->id));
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}
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return $notice;
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}
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}
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