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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
<?php
require_once('simplepie/simplepie.inc');
function get_atom_elements($item) {
$res = array();
$author = $item->get_author();
$res['remote-name'] = $author->get_name();
$res['remote-link'] = $author->get_link();
$res['remote-avatar'] = $author->get_avatar();
$res['remote-id'] = $item->get_id();
$res['title'] = $item->get_title();
$res['body'] = $item->get_content();
if(strlen($res['body']) > 100000)
$res['body'] = substr($res['body'],0,10000) . "\r\n[Extremely large post truncated.]\r\n" ;
$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
if($allow && $allow[0]['data'] == 1)
$res['last-child'] = 1;
else
$res['last-child'] = 0;
$rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
if($rawcreated)
$res['created'] = $rawcreated[0]['data'];
$rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
if($rawedited)
$res['edited'] = $rawcreated[0]['data'];
return $res;
}
function post_remote($arr) {
$arr['hash'] = random_string();
$arr['type'] = 'remote';
$arr['remote-name'] = notags(trim($arr['remote-name']));
$arr['remote-link'] = notags(trim($arr['remote-link']));
$arr['remote-avatar'] = notags(trim($arr['remote-avatar']));
if(! strlen($arr['remote-avatar']))
$arr['remote-avatar'] = $a->get_baseurl() . '/images/default-profile-sm.jpg';
$arr['created'] = datetime_convert('UTC','UTC',$arr['created'],'Y-m-d H:i:s');
$arr['edited'] = datetime_convert('UTC','UTC',$arr['edited'],'Y-m-d H:i:s');
$arr['title'] = notags(trim($arr['title']));
$arr['body'] = escape_tags(trim($arr['body']));
$arr['last-child'] = intval($arr['last_child']);
$arr['visible'] = 1;
$arr['deleted'] = 0;
$parent = $arr['parent_urn'];
unset($arr['parent_urn']);
$parent_id = 0;
dbesc_array($arr);
$r = q("INSERT INTO `item` (`"
. implode("`, `", array_keys($arr))
. "`) VALUES ('"
. implode("', '", array_values($arr))
. "')" );
$r = q("SELECT `id` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
dbesc($parent),
intval($arr['uid'])
);
if(count($r))
$parent_id = $r[0]['id'];
$r = q("SELECT `id` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
$arr['remote-id'],
intval($arr['uid'])
);
if(count($r))
$current_post = $r[0]['id'];
$r = q("UPDATE `item` SET `parent` = %d WHERE `id` = %d LIMIT 1",
intval($parent_id),
intval($current_post)
);
}
function dfrn_notify_post(&$a) {
dbg(3);
$dfrn_id = notags(trim($_POST['dfrn_id']));
$challenge = notags(trim($_POST['challenge']));
$data = $_POST['data'];
$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
dbesc($dfrn_id),
dbesc($challenge)
);
if(! count($r))
xml_status(3);
$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
dbesc($dfrn_id),
dbesc($challenge)
);
// find the local user who owns this relationship.
$r = q("SELECT `id`, `uid` FROM `contact` WHERE `issued-id` = '%s' LIMIT 1",
dbesc($dfrn_id)
);
if(! count($r))
xml_status(3);
$importer = $r[0];
$feed = new SimplePie();
$feed->set_raw_data($data);
$feed->enable_order_by_date(false);
$feed->init();
foreach($feed->get_items() as $item) {
$rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
print_r($rawdelete);
if($deleted) {
// pick out ref and when from attribs
// check hasn't happened already, verify ownership and then process it
continue;
}
$is_reply = false;
$item_id = $item->get_id();
$rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
if(isset($rawthread[0]['attribs']['']['ref'])) {
$is_reply = true;
$parent_urn = $rawthread[0]['attribs']['']['ref'];
}
if($is_reply) {
if($x == ($total_items - 1)) {
// remote reply to our post. Import and then notify everybody else.
}
else {
// regular comment that is part of this total conversation. Have we seen it? If not, import it.
$item_id = $item->get_id();
$r = q("SELECT `uid`, `last-child` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
dbesc($item_id),
intval($importer['uid'])
);
if(count($r)) {
$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
if($allow && $allow[0]['data'] != $r[0]['last-child']) {
$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
intval($allow[0]['data']),
dbesc($item_id)
);
}
continue;
}
$datarray = get_atom_elements($item);
$datarray['parent_urn'] = $parent_urn;
$datarray['uid'] = $importer['uid'];
$datarray['contact-id'] = $importer['id'];
$r = post_remote($datarray);
continue;
}
}
else {
// Head post of a conversation. Have we seen it? If not, import it.
$item_id = $item->get_id();
$r = q("SELECT `uid` FROM `item` WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
dbesc($item_id),
intval($importer['uid'])
);
if(count($r)) {
$allow = $item->get_item_tags('http://purl.org/macgirvin/dfrn/1.0','comment-allow');
if($allow && $allow[0]['data'] != $r[0]['last-child']) {
$r = q("UPDATE `item` SET `last-child` = %d WHERE `remote-id` = '%s' AND `uid` = %d LIMIT 1",
intval($allow[0]['data']),
dbesc($item_id)
);
}
continue;
}
$datarray = get_atom_elements($item);
$datarray['parent_urn'] = $item_id;
$datarray['uid'] = $importer['uid'];
$datarray['contact-id'] = $importer['id'];
$r = post_remote($datarray);
continue;
}
}
killme();
}
function dfrn_notify_content(&$a) {
if(x($_GET,'dfrn_id')) {
// initial communication from external contact
$hash = random_string();
$status = 0;
$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
VALUES( '%s', '%s', '%s') ",
dbesc($hash),
dbesc(notags(trim($_GET['dfrn_id']))),
intval(time() + 60 )
);
$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 LIMIT 1",
dbesc($_GET['dfrn_id']));
if((! count($r)) || (! strlen($r[0]['prvkey'])))
$status = 1;
$challenge = '';
openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
$challenge = bin2hex($challenge);
echo '<?xml version="1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $_GET['dfrn_id'] . '</dfrn_id>'
. '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
session_write_close();
exit;
}
}
|
