3 * Laconica - a distributed open-source microblogging tool
4 * Copyright (C) 2008, Controlez-Vous, Inc.
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Affero General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Affero General Public License for more details.
16 * You should have received a copy of the GNU Affero General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 if (!defined('LACONICA')) { exit(1); }
22 require_once('XMPPHP/XMPP.php');
24 /* Subscribe $user to nickname $other_nickname
25 Returns true or an error message.
28 function subs_subscribe_user($user, $other_nickname) {
30 $other = User::staticGet('nickname', $other_nickname);
33 return _('No such user.');
36 return subs_subscribe_to($user, $other);
39 /* Subscribe user $user to other user $other.
40 * Note: $other must be a local user, not a remote profile.
41 * Because the other way is quite a bit more complicated.
44 function subs_subscribe_to($user, $other) {
46 if ($user->isSubscribed($other)) {
47 return _('Already subscribed!');
50 if ($other->hasBlocked($user)) {
51 return _('User has blocked you.');
54 if (!$user->subscribeTo($other)) {
55 return _('Could not subscribe.');
59 subs_notify($other, $user);
61 $cache = common_memcache();
64 $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));
67 if ($other->autosubscribe && !$other->isSubscribed($user) && !$user->hasBlocked($other)) {
68 if (!$other->subscribeTo($user)) {
69 return _('Could not subscribe other to you.');
71 $cache = common_memcache();
74 $cache->delete(common_cache_key('user:notices_with_friends:' . $other->id));
77 subs_notify($user, $other);
83 function subs_notify($listenee, $listener) {
84 # XXX: add other notifications (Jabber, SMS) here
85 # XXX: queue this and handle it offline
86 # XXX: Whatever happens, do it in Twitter-like API, too
87 subs_notify_email($listenee, $listener);
90 function subs_notify_email($listenee, $listener) {
91 mail_subscribe_notify($listenee, $listener);
94 /* Unsubscribe $user from nickname $other_nickname
95 Returns true or an error message.
98 function subs_unsubscribe_user($user, $other_nickname) {
100 $other = User::staticGet('nickname', $other_nickname);
103 return _('No such user.');
106 return subs_unsubscribe_to($user, $other->getProfile());
109 /* Unsubscribe user $user from profile $other
110 * NB: other can be a remote user. */
112 function subs_unsubscribe_to($user, $other) {
114 if (!$user->isSubscribed($other))
115 return _('Not subscribed!');
117 $sub = DB_DataObject::factory('subscription');
119 $sub->subscriber = $user->id;
120 $sub->subscribed = $other->id;
124 // note we checked for existence above
127 return _('Couldn\'t delete subscription.');
129 $cache = common_memcache();
132 $cache->delete(common_cache_key('user:notices_with_friends:' . $user->id));