mod/dfrn_notify.php

   1 <?php
   2
   3 require_once('simplepie/simplepie.inc');
   4 require_once('include/items.php');
   5
   6
   7 function dfrn_notify_post(&$a) {
   8
   9         $dfrn_id      = ((x($_POST,'dfrn_id'))      ? notags(trim($_POST['dfrn_id']))   : '');
  10         $dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version']    : 2.0);
  11         $challenge    = ((x($_POST,'challenge'))    ? notags(trim($_POST['challenge'])) : '');
  12         $data         = ((x($_POST,'data'))         ? $_POST['data']                    : '');
  13         $key          = ((x($_POST,'key'))          ? $_POST['key']                     : '');
  14         $dissolve     = ((x($_POST,'dissolve'))     ? intval($_POST['dissolve'])        :  0);
  15
  16         $direction = (-1);
  17         if(strpos($dfrn_id,':') == 1) {
  18                 $direction = intval(substr($dfrn_id,0,1));
  19                 $dfrn_id = substr($dfrn_id,2);
  20         }
  21
  22         $r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  23                 dbesc($dfrn_id),
  24                 dbesc($challenge)
  25         );
  26         if(! count($r)) {
  27                 logger('dfrn_notify: could not match challenge to dfrn_id ' . $dfrn_id . ' challenge=' . $challenge);
  28                 xml_status(3);
  29         }
  30
  31         $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  32                 dbesc($dfrn_id),
  33                 dbesc($challenge)
  34         );
  35
  36         // find the local user who owns this relationship.
  37
  38         $sql_extra = '';
  39         switch($direction) {
  40                 case (-1):
  41                         $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
  42                         break;
  43                 case 0:
  44                         $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  45                         break;
  46                 case 1:
  47                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  48                         break;
  49                 default:
  50                         xml_status(3);
  51                         break; // NOTREACHED
  52         }
  53
  54
  55         $r = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`,
  56                 `contact`.`pubkey` AS `cpubkey`, `contact`.`prvkey` AS `cprvkey`, `user`.* FROM `contact`
  57                 LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  58                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
  59                 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
  60                 dbesc($a->argv[1])
  61         );
  62
  63         if(! count($r)) {
  64                 logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
  65                 xml_status(3);
  66                 //NOTREACHED
  67         }
  68
  69         // $importer in this case contains the contact record for the remote contact joined with the user record of our user.
  70
  71         $importer = $r[0];
  72
  73         logger('dfrn_notify: received notify from ' . $importer['name'] . ' for ' . $importer['username']);
  74         logger('dfrn_notify: data: ' . $data, LOGGER_DATA);
  75
  76         if($dissolve == 1) {
  77
  78                 /**
  79                  * Relationship is dissolved permanently
  80                  */
  81
  82                 require_once('include/Contact.php');
  83                 contact_remove($importer['id']);
  84                 logger('relationship dissolved : ' . $importer['name'] . ' dissolved ' . $importer['username']);
  85                 xml_status(0);
  86
  87         }
  88
  89         if(strlen($key)) {
  90                 $rawkey = hex2bin(trim($key));
  91                 logger('rino: md5 raw key: ' . md5($rawkey));
  92                 $final_key = '';
  93
  94                 if($dfrn_version >= 2.1) {
  95                         if((($importer['duplex']) && strlen($importer['cprvkey'])) || (! strlen($importer['cpubkey']))) {
  96                                 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
  97                         }
  98                         else {
  99                                 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
 100                         }
 101                 }
 102                 else {
 103                         if((($importer['duplex']) && strlen($importer['cpubkey'])) || (! strlen($importer['cprvkey']))) {
 104                                 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
 105                         }
 106                         else {
 107                                 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
 108                         }
 109                 }
 110
 111                 logger('rino: received key : ' . $final_key);
 112                 $data = aes_decrypt(hex2bin($data),$final_key);
 113                 logger('rino: decrypted data: ' . $data, LOGGER_DATA);
 114         }
 115
 116
 117
 118
 119         if($importer['readonly']) {
 120                 // We aren't receiving stuff from this person. But we will quietly ignore them
 121                 // rather than a blatant "go away" message.
 122                 logger('dfrn_notify: ignoring');
 123                 xml_status(0);
 124                 //NOTREACHED
 125         }
 126
 127         // Consume notification feed. This may differ from consuming a public feed in several ways
 128         // - might contain email
 129         // - might contain remote followup to our message
 130         //              - in which case we need to accept it and then notify other conversants
 131         // - we may need to send various email notifications
 132
 133         $feed = new SimplePie();
 134         $feed->set_raw_data($data);
 135         $feed->enable_order_by_date(false);
 136         $feed->init();
 137
 138         $ismail = false;
 139
 140         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
 141         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
 142
 143                 logger('dfrn_notify: private message received');
 144
 145                 $ismail = true;
 146                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
 147
 148                 $msg = array();
 149                 $msg['uid'] = $importer['importer_uid'];
 150                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
 151                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
 152                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
 153                 $msg['contact-id'] = $importer['id'];
 154                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
 155                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
 156                 $msg['seen'] = 0;
 157                 $msg['replied'] = 0;
 158                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
 159                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
 160                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
 161
 162                 dbesc_array($msg);
 163
 164                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
 165                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
 166
 167                 // send email notification if requested.
 168
 169                 require_once('bbcode.php');
 170                 if($importer['notify-flags'] & NOTIFY_MAIL) {
 171
 172                         $body = html_entity_decode(strip_tags(bbcode(stripslashes($msg['body']))),ENT_QUOTES,'UTF-8');
 173
 174                         if(function_exists('quoted_printable_encode'))
 175                                 $body = quoted_printable_encode($body);
 176                         else
 177                                 $body = qp($body);
 178
 179                         $tpl = load_view_file('view/mail_received_eml.tpl');
 180                         $email_tpl = replace_macros($tpl, array(
 181                                 '$sitename' => $a->config['sitename'],
 182                                 '$siteurl' =>  $a->get_baseurl(),
 183                                 '$username' => $importer['username'],
 184                                 '$email' => $importer['email'],
 185                                 '$from' => $msg['from-name'],
 186                                 '$title' => stripslashes($msg['title']),
 187                                 '$body' => $body
 188                         ));
 189
 190                         $res = mail($importer['email'], t('New mail received at ') . $a->config['sitename'],
 191                                 $email_tpl, 'From: ' . t('Administrator') . '@' . $a->get_hostname() . "\r\n"
 192                                         . 'MIME-Version: 1.0' . "\r\n"
 193                                         . 'Content-type: text/plain; charset=UTF-8' . "\r\n"
 194                                         . 'Content-transfer-encoding: quoted-printable' . "\r\n"
 195                         );
 196                 }
 197                 xml_status(0);
 198                 // NOTREACHED
 199         }
 200
 201         logger('dfrn_notify: feed item count = ' . $feed->get_item_quantity());
 202
 203         foreach($feed->get_items() as $item) {
 204
 205                 $deleted = false;
 206
 207                 $rawdelete = $item->get_item_tags( NAMESPACE_TOMB , 'deleted-entry');
 208                 if(isset($rawdelete[0]['attribs']['']['ref'])) {
 209                         $uri = $rawthread[0]['attribs']['']['ref'];
 210                         $deleted = true;
 211                         if(isset($rawdelete[0]['attribs']['']['when'])) {
 212                                 $when = $rawthread[0]['attribs']['']['when'];
 213                                 $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 214                         }
 215                         else
 216                                 $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 217                 }
 218                 if($deleted) {
 219                         $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 220                                 dbesc($uri),
 221                                 intval($importer['importer_uid'])
 222                         );
 223                         if(count($r)) {
 224                                 $item = $r[0];
 225                                 if($item['uri'] == $item['parent-uri']) {
 226                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 227                                                 WHERE `parent-uri` = '%s' AND `uid` = %d",
 228                                                 dbesc($when),
 229                                                 dbesc(datetime_convert()),
 230                                                 dbesc($item['uri']),
 231                                                 intval($importer['importer_uid'])
 232                                         );
 233                                 }
 234                                 else {
 235                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 236                                                 WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 237                                                 dbesc($when),
 238                                                 dbesc(datetime_convert()),
 239                                                 dbesc($uri),
 240                                                 intval($importer['importer_uid'])
 241                                         );
 242                                         if($item['last-child']) {
 243                                                 // ensure that last-child is set in case the comment that had it just got wiped.
 244                                                 $q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 245                                                         dbesc(datetime_convert()),
 246                                                         dbesc($item['parent-uri']),
 247                                                         intval($item['uid'])
 248                                                 );
 249                                                 // who is the last child now?
 250                                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 251                                                         ORDER BY `created` DESC LIMIT 1",
 252                                                                 dbesc($item['parent-uri']),
 253                                                                 intval($importer['importer_uid'])
 254                                                 );
 255                                                 if(count($r)) {
 256                                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 257                                                                 intval($r[0]['id'])
 258                                                         );
 259                                                 }
 260                                         }
 261                                 }
 262                         }
 263                         continue;
 264                 }
 265
 266                 $is_reply = false;
 267                 $item_id = $item->get_id();
 268                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
 269                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 270                         $is_reply = true;
 271                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 272                 }
 273
 274                 if($is_reply) {
 275                         if($feed->get_item_quantity() == 1) {
 276                                 logger('dfrn_notify: received remote comment');
 277                                 $is_like = false;
 278                                 // remote reply to our post. Import and then notify everybody else.
 279                                 $datarray = get_atom_elements($feed,$item);
 280                                 $datarray['type'] = 'remote-comment';
 281                                 $datarray['wall'] = 1;
 282                                 $datarray['parent-uri'] = $parent_uri;
 283                                 $datarray['uid'] = $importer['importer_uid'];
 284                                 $datarray['contact-id'] = $importer['id'];
 285                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 286                                         $is_like = true;
 287                                         $datarray['type'] = 'activity';
 288                                         $datarray['gravity'] = GRAVITY_LIKE;
 289                                         $datarray['last-child'] = 0;
 290                                 }
 291                                 $posted_id = item_store($datarray);
 292                                 $parent = 0;
 293
 294                                 if($posted_id) {
 295                                         $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 296                                                 intval($posted_id),
 297                                                 intval($importer['importer_uid'])
 298                                         );
 299                                         if(count($r))
 300                                                 $parent = $r[0]['parent'];
 301
 302                                         if(! $is_like) {
 303                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
 304                                                         dbesc(datetime_convert()),
 305                                                         intval($importer['importer_uid']),
 306                                                         intval($r[0]['parent'])
 307                                                 );
 308
 309                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 310                                                         dbesc(datetime_convert()),
 311                                                         intval($importer['importer_uid']),
 312                                                         intval($posted_id)
 313                                                 );
 314                                         }
 315
 316                                         if($posted_id && $parent) {
 317
 318                                                 $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 319
 320                                                 proc_run($php_path,"include/notifier.php","comment-import","$posted_id");
 321
 322                                                 if((! $is_like) && ($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 323                                                         require_once('bbcode.php');
 324                                                         $from = stripslashes($datarray['author-name']);
 325                                                         $tpl = load_view_file('view/cmnt_received_eml.tpl');
 326                                                         $email_tpl = replace_macros($tpl, array(
 327                                                                 '$sitename' => $a->config['sitename'],
 328                                                                 '$siteurl' =>  $a->get_baseurl(),
 329                                                                 '$username' => $importer['username'],
 330                                                                 '$email' => $importer['email'],
 331                                                                 '$display' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 332                                                                 '$from' => $from,
 333                                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 334                                                         ));
 335
 336                                                         $res = mail($importer['email'], $from . t(' commented on an item at ') . $a->config['sitename'],
 337                                                                 $email_tpl, "From: " . t('Administrator') . '@' . $a->get_hostname() );
 338                                                 }
 339                                         }
 340
 341                                         xml_status(0);
 342                                         // NOTREACHED
 343                                 }
 344                         }
 345                         else {
 346                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 347
 348                                 $item_id = $item->get_id();
 349
 350                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 351                                         dbesc($item_id),
 352                                         intval($importer['importer_uid'])
 353                                 );
 354                                 // FIXME update content if 'updated' changes
 355                                 if(count($r)) {
 356                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 357                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 358                                                 $r = q("UPDATE `item` SET `last-child` = %d, `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 359                                                         intval($allow[0]['data']),
 360                                                         dbesc(datetime_convert()),
 361                                                         dbesc($item_id),
 362                                                         intval($importer['importer_uid'])
 363                                                 );
 364                                         }
 365                                         continue;
 366                                 }
 367                                 $datarray = get_atom_elements($feed,$item);
 368                                 $datarray['parent-uri'] = $parent_uri;
 369                                 $datarray['uid'] = $importer['importer_uid'];
 370                                 $datarray['contact-id'] = $importer['id'];
 371                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 372                                         $datarray['type'] = 'activity';
 373                                         $datarray['gravity'] = GRAVITY_LIKE;
 374                                 }
 375
 376                                 $r = item_store($datarray);
 377
 378                                 // find out if our user is involved in this conversation and wants to be notified.
 379
 380                                 if(($datarray['type'] != 'activity') && ($importer['notify-flags'] & NOTIFY_COMMENT)) {
 381
 382                                         $myconv = q("SELECT `author-link` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
 383                                                 dbesc($parent_uri),
 384                                                 intval($importer['importer_uid'])
 385                                         );
 386                                         if(count($myconv)) {
 387                                                 foreach($myconv as $conv) {
 388                                                         if(! link_compare($conv['author-link'],$importer['url']))
 389                                                                 continue;
 390                                                         require_once('bbcode.php');
 391                                                         $from = stripslashes($datarray['author-name']);
 392                                                         $tpl = load_view_file('view/cmnt_received_eml.tpl');
 393                                                         $email_tpl = replace_macros($tpl, array(
 394                                                                 '$sitename' => $a->config['sitename'],
 395                                                                 '$siteurl' =>  $a->get_baseurl(),
 396                                                                 '$username' => $importer['username'],
 397                                                                 '$email' => $importer['email'],
 398                                                                 '$from' => $from,
 399                                                                 '$display' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $r,
 400                                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 401                                                         ));
 402
 403                                                         $res = mail($importer['email'], $from . t(" commented on an item at ")
 404                                                                 . $a->config['sitename'],
 405                                                                 $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 406                                                         break;
 407                                                 }
 408                                         }
 409                                 }
 410                                 continue;
 411                         }
 412                 }
 413                 else {
 414                         // Head post of a conversation. Have we seen it? If not, import it.
 415
 416                         $item_id = $item->get_id();
 417                         $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 418                                 dbesc($item_id),
 419                                 intval($importer['importer_uid'])
 420                         );
 421                         if(count($r)) {
 422                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 423                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 424                                         $r = q("UPDATE `item` SET `last-child` = %d, `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 425                                                 intval($allow[0]['data']),
 426                                                 dbesc(datetime_convert()),
 427                                                 dbesc($item_id),
 428                                                 intval($importer['importer_uid'])
 429                                         );
 430                                 }
 431                                 continue;
 432                         }
 433
 434
 435                         $datarray = get_atom_elements($feed,$item);
 436                         $datarray['parent-uri'] = $item_id;
 437                         $datarray['uid'] = $importer['importer_uid'];
 438                         $datarray['contact-id'] = $importer['id'];
 439                         $r = item_store($datarray);
 440                         continue;
 441                 }
 442         }
 443
 444         xml_status(0);
 445         // NOTREACHED
 446
 447 }
 448
 449
 450 function dfrn_notify_content(&$a) {
 451
 452         if(x($_GET,'dfrn_id')) {
 453
 454                 // initial communication from external contact, $direction is their direction.
 455                 // If this is a duplex communication, ours will be the opposite.
 456
 457                 $dfrn_id = notags(trim($_GET['dfrn_id']));
 458                 $dfrn_version = (float) $_GET['dfrn_version'];
 459
 460                 logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
 461
 462                 $direction = (-1);
 463                 if(strpos($dfrn_id,':') == 1) {
 464                         $direction = intval(substr($dfrn_id,0,1));
 465                         $dfrn_id = substr($dfrn_id,2);
 466                 }
 467
 468                 $hash = random_string();
 469
 470                 $status = 0;
 471
 472                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 473
 474                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 475                         VALUES( '%s', '%s', %d ) ",
 476                         dbesc($hash),
 477                         dbesc($dfrn_id),
 478                         intval(time() + 90 )
 479                 );
 480
 481                 logger('dfrn_notify: challenge=' . $hash );
 482
 483                 $sql_extra = '';
 484                 switch($direction) {
 485                         case (-1):
 486                                 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
 487                                 $my_id = $dfrn_id;
 488                                 break;
 489                         case 0:
 490                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 491                                 $my_id = '1:' . $dfrn_id;
 492                                 break;
 493                         case 1:
 494                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 495                                 $my_id = '0:' . $dfrn_id;
 496                                 break;
 497                         default:
 498                                 $status = 1;
 499                                 break; // NOTREACHED
 500                 }
 501
 502                 $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
 503                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
 504                                 dbesc($a->argv[1])
 505                 );
 506
 507                 if(! count($r))
 508                         $status = 1;
 509
 510                 $challenge = '';
 511                 $encrypted_id = '';
 512                 $id_str = $my_id . '.' . mt_rand(1000,9999);
 513
 514                 if((($r[0]['duplex']) && strlen($r[0]['prvkey'])) || (! strlen($r[0]['pubkey']))) {
 515                         openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 516                         openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 517                 }
 518                 else {
 519                         openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
 520                         openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
 521                 }
 522
 523                 $challenge    = bin2hex($challenge);
 524                 $encrypted_id = bin2hex($encrypted_id);
 525
 526                 $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 527
 528                 $rino_enable = get_config('system','rino_encrypt');
 529
 530                 if(! $rino_enable)
 531                         $rino = 0;
 532
 533
 534                 header("Content-type: text/xml");
 535
 536                 echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
 537                         . '<dfrn_notify>' . "\r\n"
 538                         . "\t" . '<status>' . $status . '</status>' . "\r\n"
 539                         . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
 540                         . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
 541                         . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
 542                         . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
 543                         . '</dfrn_notify>' . "\r\n" ;
 544
 545                 killme();
 546         }
 547
 548 }