1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
<?php
function hub_return($valid,$body) {
if($valid) {
header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
echo $body;
killme();
}
else {
header($_SERVER["SERVER_PROTOCOL"] . ' 404 ' . 'Not Found');
killme();
}
// NOTREACHED
}
// when receiving an XML feed, always return OK
function hub_post_return() {
header($_SERVER["SERVER_PROTOCOL"] . ' 200 ' . 'OK');
killme();
}
function pubsub_init(&$a) {
$nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
$contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
if($_SERVER['REQUEST_METHOD'] === 'GET') {
$hub_mode = notags(trim($_GET['hub_mode']));
$hub_topic = notags(trim($_GET['hub_topic']));
$hub_challenge = notags(trim($_GET['hub_challenge']));
$hub_lease = notags(trim($_GET['hub_lease_seconds']));
$hub_verify = notags(trim($_GET['hub_verify_token']));
logger('pubsub: Subscription from' . $_SERVER['REMOTE_ADDR'] . print_r($_GET,true));
$subscribe = (($hub_mode === 'subscribe') ? 1 : 0);
$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
dbesc($nick)
);
if(! count($r))
hub_return(false, '');
$owner = $r[0];
$sql_extra = ((strlen($hub_verify)) ? sprintf(" AND `hub-verify` = '%s' ", dbesc($hub_verify)) : '');
$r = q("SELECT * FROM `contact` WHERE `poll` = '%s' AND `id` = %d AND `uid` = %d AND `blocked` = 0 $sql_extra LIMIT 1",
dbesc($hub_topic),
intval($contact_id),
intval($owner['uid'])
);
if(! count($r))
hub_return(false, '');
$contact = $r[0];
// We must initiate an unsubscribe request with a verify_token.
// Don't allow outsiders to unsubscribe us.
if(($hub_mode === 'unsubscribe') && (! strlen($hub_verify)))
hub_return(false, '');
$r = q("UPDATE `contact` SET `subhub` = %d WHERE `id` = %d LIMIT 1",
intval($subscribe),
intval($contact['id'])
);
hub_return(true, $hub_challenge);
}
}
require_once('include/security.php');
function pubsub_post(&$a) {
$xml = file_get_contents('php://input');
logger('pubsub: feed arrived from ' . $_SERVER['REMOTE_ADDR'] . ' for ' . $a->cmd . ':' . $xml);
$nick = (($a->argc > 1) ? notags(trim($a->argv[1])) : '');
$contact_id = (($a->argc > 2) ? intval($a->argv[2]) : 0);
$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
dbesc($nick)
);
if(! count($r))
hub_post_return();
$importer = $r[0];
$r = q("SELECT * FROM `contact` WHERE `subhub` = 1 AND `id` = %d AND `uid` = %d AND `blocked` = 0 AND `readonly` = 0 LIMIT 1",
intval($contact_id),
intval($importer['uid'])
);
if(! count($r))
hub_post_return();
$contact = $r[0];
$feedhub = '';
require_once('include/items.php');
consume_feed($xml,$importer,$contact,$feedhub);
hub_post_return();
}
|
