3 require_once('library/simplepie/simplepie.inc');
4 require_once('include/items.php');
5 require_once('include/event.php');
8 function dfrn_notify_post(&$a) {
10 $dfrn_id = ((x($_POST,'dfrn_id')) ? notags(trim($_POST['dfrn_id'])) : '');
11 $dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version'] : 2.0);
12 $challenge = ((x($_POST,'challenge')) ? notags(trim($_POST['challenge'])) : '');
13 $data = ((x($_POST,'data')) ? $_POST['data'] : '');
14 $key = ((x($_POST,'key')) ? $_POST['key'] : '');
15 $dissolve = ((x($_POST,'dissolve')) ? intval($_POST['dissolve']) : 0);
16 $perm = ((x($_POST,'perm')) ? notags(trim($_POST['perm'])) : 'r');
17 $ssl_policy = ((x($_POST,'ssl_policy')) ? notags(trim($_POST['ssl_policy'])): 'none');
18 $page = ((x($_POST,'page')) ? intval($_POST['page']) : 0);
20 $forum = (($page == 1) ? 1 : 0);
21 $prv = (($page == 2) ? 1 : 0);
24 if($dfrn_version >= 2.21) {
25 $writable = (($perm === 'rw') ? 1 : 0);
29 if(strpos($dfrn_id,':') == 1) {
30 $direction = intval(substr($dfrn_id,0,1));
31 $dfrn_id = substr($dfrn_id,2);
34 $r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
39 logger('dfrn_notify: could not match challenge to dfrn_id ' . $dfrn_id . ' challenge=' . $challenge);
43 $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
48 // find the local user who owns this relationship.
53 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
56 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
59 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
66 // be careful - $importer will contain both the contact information for the contact
67 // sending us the post, and also the user information for the person receiving it.
68 // since they are mixed together, it is easy to get them confused.
70 $r = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`,
71 `contact`.`pubkey` AS `cpubkey`,
72 `contact`.`prvkey` AS `cprvkey`,
73 `contact`.`thumb` AS `thumb`,
74 `contact`.`url` as `url`,
75 `contact`.`name` as `senderName`,
78 LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
79 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
80 AND `user`.`nickname` = '%s' AND `user`.`account_expired` = 0 $sql_extra LIMIT 1",
85 logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
90 // $importer in this case contains the contact record for the remote contact joined with the user record of our user.
94 if((($writable != (-1)) && ($writable != $importer['writable'])) || ($importer['forum'] != $forum) || ($importer['prv'] != $prv)) {
95 q("UPDATE `contact` SET `writable` = %d, forum = %d, prv = %d WHERE `id` = %d LIMIT 1",
96 intval(($writable == (-1)) ? $importer['writable'] : $writable),
99 intval($importer['id'])
101 if($writable != (-1))
102 $importer['writable'] = $writable;
103 $importer['forum'] = $page;
107 // if contact's ssl policy changed, update our links
109 fix_contact_ssl_policy($importer,$ssl_policy);
111 logger('dfrn_notify: received notify from ' . $importer['name'] . ' for ' . $importer['username']);
112 logger('dfrn_notify: data: ' . $data, LOGGER_DATA);
117 * Relationship is dissolved permanently
120 require_once('include/Contact.php');
121 contact_remove($importer['id']);
122 logger('relationship dissolved : ' . $importer['name'] . ' dissolved ' . $importer['username']);
128 // If we are setup as a soapbox we aren't accepting input from this person
130 if($importer['page-flags'] == PAGE_SOAPBOX)
135 $rawkey = hex2bin(trim($key));
136 logger('rino: md5 raw key: ' . md5($rawkey));
139 if($dfrn_version >= 2.1) {
140 if((($importer['duplex']) && strlen($importer['cprvkey'])) || (! strlen($importer['cpubkey']))) {
141 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
144 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
148 if((($importer['duplex']) && strlen($importer['cpubkey'])) || (! strlen($importer['cprvkey']))) {
149 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
152 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
156 logger('rino: received key : ' . $final_key);
157 $data = aes_decrypt(hex2bin($data),$final_key);
158 logger('rino: decrypted data: ' . $data, LOGGER_DATA);
162 $ret = local_delivery($importer,$data);
169 function dfrn_notify_content(&$a) {
171 if(x($_GET,'dfrn_id')) {
173 // initial communication from external contact, $direction is their direction.
174 // If this is a duplex communication, ours will be the opposite.
176 $dfrn_id = notags(trim($_GET['dfrn_id']));
177 $dfrn_version = (float) $_GET['dfrn_version'];
179 logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
182 if(strpos($dfrn_id,':') == 1) {
183 $direction = intval(substr($dfrn_id,0,1));
184 $dfrn_id = substr($dfrn_id,2);
187 $hash = random_string();
191 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
193 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
194 VALUES( '%s', '%s', %d ) ",
200 logger('dfrn_notify: challenge=' . $hash, LOGGER_DEBUG );
205 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
209 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
210 $my_id = '1:' . $dfrn_id;
213 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
214 $my_id = '0:' . $dfrn_id;
221 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`page-flags` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
222 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s'
223 AND `user`.`account_expired` = 0 $sql_extra LIMIT 1",
232 $id_str = $my_id . '.' . mt_rand(1000,9999);
234 $prv_key = trim($r[0]['prvkey']);
235 $pub_key = trim($r[0]['pubkey']);
236 $dplx = intval($r[0]['duplex']);
238 if((($dplx) && (strlen($prv_key))) || ((strlen($prv_key)) && (!(strlen($pub_key))))) {
239 openssl_private_encrypt($hash,$challenge,$prv_key);
240 openssl_private_encrypt($id_str,$encrypted_id,$prv_key);
242 elseif(strlen($pub_key)) {
243 openssl_public_encrypt($hash,$challenge,$pub_key);
244 openssl_public_encrypt($id_str,$encrypted_id,$pub_key);
249 $challenge = bin2hex($challenge);
250 $encrypted_id = bin2hex($encrypted_id);
252 $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
254 $rino_enable = get_config('system','rino_encrypt');
259 if((($r[0]['rel']) && ($r[0]['rel'] != CONTACT_IS_SHARING)) || ($r[0]['page-flags'] == PAGE_COMMUNITY)) {
266 header("Content-type: text/xml");
268 echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
269 . '<dfrn_notify>' . "\r\n"
270 . "\t" . '<status>' . $status . '</status>' . "\r\n"
271 . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
272 . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
273 . "\t" . '<perm>' . $perm . '</perm>' . "\r\n"
274 . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
275 . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
276 . '</dfrn_notify>' . "\r\n" ;