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
123
124
125
126
127
128
129
130
|
<?php
@require_once('include/zot.php');
function magic_init(&$a) {
$addr = ((x($_REQUEST,'addr')) ? $_REQUEST['addr'] : '');
$hash = ((x($_REQUEST,'hash')) ? $_REQUEST['hash'] : '');
$dest = ((x($_REQUEST,'dest')) ? $_REQUEST['dest'] : '');
if($hash) {
$x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
where hubloc_hash = '%s' and (hubloc_flags & %d) order by hubloc_id desc limit 1",
dbesc($hash),
intval(HUBLOC_FLAGS_PRIMARY)
);
}
elseif($addr) {
$x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
where xchan_addr = '%s' and (hubloc_flags & %d) order by hubloc_id desc limit 1",
dbesc($addr),
intval(HUBLOC_FLAGS_PRIMARY)
);
}
else {
// See if we know anybody at the dest site that will unlock the door for us
$b = explode('/',$dest);
if(count($b) >= 2)
$u = $b[0] . '//' . $b[2];
logger('mod_magic: fallback: ' . $b . ' -> ' . $u);
$x = q("select xchan.xchan_url, hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
where hubloc_url = '%s' order by hubloc_id desc limit 1",
dbesc($u)
);
}
if(! $x) {
// Finger them if they've never been seen here before
if($addr) {
$ret = zot_finger($addr,null);
if($ret['success']) {
$j = json_decode($ret['body'],true);
if($j)
import_xchan($j);
$x = q("select hubloc.* from xchan left join hubloc on xchan_hash = hubloc_hash
where xchan_addr = '%s' and (hubloc_flags & %d) order by hubloc_id desc limit 1",
dbesc($addr),
intval(HUBLOC_FLAGS_PRIMARY)
);
}
}
}
if(! $x) {
logger('mod_magic: channel not found.' . print_r($_REQUEST,true));
notice( t('Channel not found.') . EOL);
return;
}
// This is ready-made for a plugin that provides a blacklist or "ask me" before blindly authenticating.
// By default, we'll proceed without asking.
$arr = array(
'channel_id' => local_user(),
'xchan' => $x[0],
'destination' => $dest,
'proceed' => true
);
call_hooks('magic_auth',$arr);
$dest = $arr['destination'];
if(! $arr['proceed'])
goaway($dest);
if($x[0]['hubloc_url'] === z_root()) {
$webbie = substr($x[0]['hubloc_addr'],0,strpos('@',$x[0]['hubloc_addr']));
switch($dest) {
case 'channel':
$desturl = z_root() . '/channel/' . $webbie;
break;
case 'photos':
$desturl = z_root() . '/photos/' . $webbie;
break;
case 'profile':
$desturl = z_root() . '/profile/' . $webbie;
break;
default:
$desturl = $dest;
break;
}
// We are already authenticated on this site and a registered observer.
// Just redirect.
goaway($desturl);
}
if(local_user()) {
$channel = $a->get_channel();
$token = random_string();
$token_sig = base64url_encode(rsa_sign($token,$channel['channel_prvkey']));
$channel['token'] = $token;
$channel['token_sig'] = $token_sig;
$recip = array(array('guid' => $x[0]['hubloc_guid'],'guid_sig' => $x[0]['hubloc_guid_sig']));
$hash = random_string();
$r = q("insert into verify ( type, channel, token, meta, created) values ('%s','%d','%s','%s','%s')",
dbesc('auth'),
intval($channel['channel_id']),
dbesc($token),
dbesc($x[0]['hubloc_hash']),
dbesc(datetime_convert())
);
goaway($x[0]['hubloc_callback'] . '/' . substr($x[0]['hubloc_addr'],0,strpos($x[0]['hubloc_addr'],'@'))
. '/?f=&auth=' . $channel['channel_address'] . '@' . $a->get_hostname()
. '&sec=' . $token . '&dest=' . urlencode($dest) . '&version=' . ZOT_REVISION);
}
if(strpos($dest,'/'))
goaway($dest);
goaway(z_root());
}
|
