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<?php
/*
* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2008, 2009, 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('STATUSNET')) { exit(1); }
require_once('XMPPHP/XMPP.php');
/* Subscribe $user to nickname $other_nickname
Returns true or an error message.
*/
function subs_subscribe_user($user, $other_nickname)
{
$other = User::staticGet('nickname', $other_nickname);
if (!$other) {
return _('No such user.');
}
return subs_subscribe_to($user, $other);
}
/* Subscribe user $user to other user $other.
* Note: $other must be a local user, not a remote profile.
* Because the other way is quite a bit more complicated.
*/
function subs_subscribe_to($user, $other)
{
if ($user->isSubscribed($other)) {
return _('Already subscribed!.');
}
if ($other->hasBlocked($user)) {
return _('User has blocked you.');
}
if (!$user->subscribeTo($other)) {
return _('Could not subscribe.');
return;
}
subs_notify($other, $user);
$cache = common_memcache();
if ($cache) {
$cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
}
$profile = $user->getProfile();
$profile->blowSubscriptionsCount();
$other->blowSubscribersCount();
if ($other->autosubscribe && !$other->isSubscribed($user) && !$user->hasBlocked($other)) {
if (!$other->subscribeTo($user)) {
return _('Could not subscribe other to you.');
}
$cache = common_memcache();
if ($cache) {
$cache->delete(common_cache_key('user:notices_with_friends:' . $other->id));
}
subs_notify($user, $other);
}
return true;
}
function subs_notify($listenee, $listener)
{
# XXX: add other notifications (Jabber, SMS) here
# XXX: queue this and handle it offline
# XXX: Whatever happens, do it in Twitter-like API, too
subs_notify_email($listenee, $listener);
}
function subs_notify_email($listenee, $listener)
{
mail_subscribe_notify($listenee, $listener);
}
/* Unsubscribe $user from nickname $other_nickname
Returns true or an error message.
*/
function subs_unsubscribe_user($user, $other_nickname)
{
$other = User::staticGet('nickname', $other_nickname);
if (!$other) {
return _('No such user.');
}
return subs_unsubscribe_to($user, $other->getProfile());
}
/* Unsubscribe user $user from profile $other
* NB: other can be a remote user. */
function subs_unsubscribe_to($user, $other)
{
if (!$user->isSubscribed($other))
return _('Not subscribed!.');
$sub = DB_DataObject::factory('subscription');
$sub->subscriber = $user->id;
$sub->subscribed = $other->id;
$sub->find(true);
// note we checked for existence above
if (!$sub->delete())
return _('Couldn\'t delete subscription.');
$cache = common_memcache();
if ($cache) {
$cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
}
$profile = $user->getProfile();
$profile->blowSubscriptionsCount();
$other->blowSubscribersCount();
return true;
}
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