gnu-social/plugins/OStatus/actions/usersalmon.php

230 lines
8.6 KiB
PHP

<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2010, StatusNet, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
if (!defined('GNUSOCIAL')) { exit(1); }
/**
* @package OStatusPlugin
* @author James Walker <james@status.net>
*/
class UsersalmonAction extends SalmonAction
{
protected function prepare(array $args=array())
{
parent::prepare($args);
$this->user = User::getByID($this->trimmed('id'));
$this->target = $this->user->getProfile();
// Notice must either be a) in reply to a notice by this user
// or b) in reply to a notice to the attention of this user
// or c) to the attention of this user
// or d) reference the user as an activity:object
$notice = null;
if (!empty($this->activity->context->replyToID)) {
try {
$notice = Notice::getByUri($this->activity->context->replyToID);
common_debug('Referenced Notice object found with URI: '.$notice->getUri());
} catch (NoResultException $e) {
common_debug('Referenced Notice object NOT found with URI: '.$this->activity->context->replyToID);
$notice = false;
}
}
if ($notice instanceof Notice &&
($this->target->sameAs($notice->getProfile())
|| in_array($this->target->getID(), $notice->getAttentionProfileIDs())
)) {
// In reply to a notice either from or mentioning this user.
common_debug('User is the owner or was in the attention list of thr:in-reply-to activity.');
} elseif (!empty($this->activity->context->attention) &&
array_key_exists($this->target->getUri(), $this->activity->context->attention)) {
// To the attention of this user.
common_debug('User was in attention list of salmon slap.');
} elseif (!empty($this->activity->objects) && $this->activity->objects[0]->id === $this->target->getUri()) {
// The user is the object of this slap (unfollow for example)
common_debug('User URI was the id of the salmon slap object.');
} else {
common_debug('User was NOT found in salmon slap context.');
// TRANS: Client exception.
throw new ClientException(_m('The owner of this salmon endpoint was not in the context of the carried slap.'));
}
return true;
}
/**
* We've gotten a post event on the Salmon backchannel, probably a reply.
*
* @todo validate if we need to handle this post, then call into
* ostatus_profile's general incoming-post handling.
*/
function handlePost()
{
common_log(LOG_INFO, "Received post of '{$this->activity->objects[0]->id}' from '{$this->activity->actor->id}'");
// @fixme: process all activity objects?
switch ($this->activity->objects[0]->type) {
case ActivityObject::ARTICLE:
case ActivityObject::BLOGENTRY:
case ActivityObject::NOTE:
case ActivityObject::STATUS:
case ActivityObject::COMMENT:
break;
default:
// TRANS: Client exception thrown when an undefied activity is performed.
throw new ClientException(_m('Cannot handle that kind of post.'));
}
try {
$this->saveNotice();
} catch (AlreadyFulfilledException $e) {
return;
}
}
/**
* We've gotten a follow/subscribe notification from a remote user.
* Save a subscription relationship for them.
*/
function handleFollow()
{
common_log(LOG_INFO, sprintf('Setting up subscription from remote %s to local %s', $this->oprofile->getUri(), $this->target->getNickname()));
Subscription::start($this->actor, $this->target);
}
/**
* We've gotten an unfollow/unsubscribe notification from a remote user.
* Check if we have a subscription relationship for them and kill it.
*
* @fixme probably catch exceptions on fail?
*/
function handleUnfollow()
{
common_log(LOG_INFO, sprintf('Canceling subscription from remote %s to local %s', $this->oprofile->getUri(), $this->target->getNickname()));
try {
Subscription::cancel($this->actor, $this->target);
} catch (NoProfileException $e) {
common_debug('Could not find profile for Subscription: '.$e->getMessage());
}
}
function handleTag()
{
if ($this->activity->target->type == ActivityObject::_LIST) {
if ($this->activity->objects[0]->type != ActivityObject::PERSON) {
// TRANS: Client exception.
throw new ClientException(_m('Not a person object.'));
}
// this is a peopletag
$tagged = User::getKV('uri', $this->activity->objects[0]->id);
if (!$tagged instanceof User) {
// TRANS: Client exception.
throw new ClientException(_m('Unidentified profile being listed.'));
}
if ($tagged->id !== $this->target->id) {
// TRANS: Client exception.
throw new ClientException(_m('This user is not the one being listed.'));
}
// save the list
$list = Ostatus_profile::ensureActivityObjectProfile($this->activity->target);
$ptag = $list->localPeopletag();
$result = Profile_tag::setTag($ptag->tagger, $tagged->id, $ptag->tag);
if (!$result) {
// TRANS: Client exception.
throw new ClientException(_m('The listing could not be saved.'));
}
}
}
function handleUntag()
{
if ($this->activity->target->type == ActivityObject::_LIST) {
if ($this->activity->objects[0]->type != ActivityObject::PERSON) {
// TRANS: Client exception.
throw new ClientException(_m('Not a person object.'));
}
// this is a peopletag
$tagged = User::getKV('uri', $this->activity->objects[0]->id);
if (!$tagged instanceof User) {
// TRANS: Client exception.
throw new ClientException(_m('Unidentified profile being unlisted.'));
}
if ($tagged->id !== $this->target->id) {
// TRANS: Client exception.
throw new ClientException(_m('This user is not the one being unlisted.'));
}
// save the list
$list = Ostatus_profile::ensureActivityObjectProfile($this->activity->target);
$ptag = $list->localPeopletag();
$result = Profile_tag::unTag($ptag->tagger, $tagged->id, $ptag->tag);
if (!$result) {
// TRANS: Client exception.
throw new ClientException(_m('The listing could not be deleted.'));
}
}
}
/**
* @param ActivityObject $object
* @return Notice
* @throws ClientException on invalid input
*/
function getNotice(ActivityObject $object)
{
switch ($object->type) {
case ActivityObject::ARTICLE:
case ActivityObject::BLOGENTRY:
case ActivityObject::NOTE:
case ActivityObject::STATUS:
case ActivityObject::COMMENT:
break;
default:
// TRANS: Client exception.
throw new ClientException(_m('Cannot handle that kind of object for liking/faving.'));
}
$notice = Notice::getKV('uri', $object->id);
if (!$notice instanceof Notice) {
// TRANS: Client exception. %s is an object ID.
throw new ClientException(sprintf(_m('Notice with ID %s unknown.'),$object->id));
}
if ($notice->profile_id != $this->target->id) {
// TRANS: Client exception. %1$s is a notice ID, %2$s is a user ID.
throw new ClientException(sprintf(_m('Notice with ID %1$s not posted by %2$s.'), $object->id, $this->target->id));
}
return $notice;
}
}