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
  29                 // apply some extra tracing
  30                 dbg(1);
  31                 q("SELECT * FROM `challenge` WHERE 1");
  32                 dbg(0);
  33
  34                 xml_status(3);
  35         }
  36
  37         $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  38                 dbesc($dfrn_id),
  39                 dbesc($challenge)
  40         );
  41
  42         // find the local user who owns this relationship.
  43
  44         $sql_extra = '';
  45         switch($direction) {
  46                 case (-1):
  47                         $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
  48                         break;
  49                 case 0:
  50                         $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  51                         break;
  52                 case 1:
  53                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  54                         break;
  55                 default:
  56                         xml_status(3);
  57                         break; // NOTREACHED
  58         }
  59
  60
  61         $r = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`,
  62                 `contact`.`pubkey` AS `cpubkey`, `contact`.`prvkey` AS `cprvkey`, `user`.* FROM `contact`
  63                 LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  64                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
  65                 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
  66                 dbesc($a->argv[1])
  67         );
  68
  69         if(! count($r)) {
  70                 logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
  71                 xml_status(3);
  72                 //NOTREACHED
  73         }
  74
  75         // $importer in this case contains the contact record for the remote contact joined with the user record of our user.
  76
  77         $importer = $r[0];
  78
  79         logger('dfrn_notify: received notify from ' . $importer['name'] . ' for ' . $importer['username']);
  80         logger('dfrn_notify: data: ' . $data, LOGGER_DATA);
  81
  82         if($dissolve == 1) {
  83
  84                 /**
  85                  * Relationship is dissolved permanently
  86                  */
  87
  88                 require_once('include/Contact.php');
  89                 contact_remove($importer['id']);
  90                 logger('relationship dissolved : ' . $importer['name'] . ' dissolved ' . $importer['username']);
  91                 xml_status(0);
  92
  93         }
  94
  95         if(strlen($key)) {
  96                 $rawkey = hex2bin(trim($key));
  97                 logger('rino: md5 raw key: ' . md5($rawkey));
  98                 $final_key = '';
  99
 100                 if($dfrn_version >= 2.1) {
 101                         if((($importer['duplex']) && strlen($importer['cprvkey'])) || (! strlen($importer['cpubkey']))) {
 102                                 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
 103                         }
 104                         else {
 105                                 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
 106                         }
 107                 }
 108                 else {
 109                         if((($importer['duplex']) && strlen($importer['cpubkey'])) || (! strlen($importer['cprvkey']))) {
 110                                 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
 111                         }
 112                         else {
 113                                 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
 114                         }
 115                 }
 116
 117                 logger('rino: received key : ' . $final_key);
 118                 $data = aes_decrypt(hex2bin($data),$final_key);
 119                 logger('rino: decrypted data: ' . $data, LOGGER_DATA);
 120         }
 121
 122
 123
 124
 125         if($importer['readonly']) {
 126                 // We aren't receiving stuff from this person. But we will quietly ignore them
 127                 // rather than a blatant "go away" message.
 128                 logger('dfrn_notify: ignoring');
 129                 xml_status(0);
 130                 //NOTREACHED
 131         }
 132
 133         // Consume notification feed. This may differ from consuming a public feed in several ways
 134         // - might contain email
 135         // - might contain remote followup to our message
 136         //              - in which case we need to accept it and then notify other conversants
 137         // - we may need to send various email notifications
 138
 139         $feed = new SimplePie();
 140         $feed->set_raw_data($data);
 141         $feed->enable_order_by_date(false);
 142         $feed->init();
 143
 144         $ismail = false;
 145
 146         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
 147         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
 148
 149                 logger('dfrn_notify: private message received');
 150
 151                 $ismail = true;
 152                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
 153
 154                 $msg = array();
 155                 $msg['uid'] = $importer['importer_uid'];
 156                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
 157                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
 158                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
 159                 $msg['contact-id'] = $importer['id'];
 160                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
 161                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
 162                 $msg['seen'] = 0;
 163                 $msg['replied'] = 0;
 164                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
 165                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
 166                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
 167
 168                 dbesc_array($msg);
 169
 170                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
 171                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
 172
 173                 // send email notification if requested.
 174
 175                 require_once('bbcode.php');
 176                 if($importer['notify-flags'] & NOTIFY_MAIL) {
 177
 178                         $body = html_entity_decode(strip_tags(bbcode(stripslashes($msg['body']))),ENT_QUOTES,'UTF-8');
 179
 180                         if(function_exists('quoted_printable_encode'))
 181                                 $body = quoted_printable_encode($body);
 182                         else
 183                                 $body = qp($body);
 184
 185                         $tpl = load_view_file('view/mail_received_eml.tpl');
 186                         $email_tpl = replace_macros($tpl, array(
 187                                 '$sitename' => $a->config['sitename'],
 188                                 '$siteurl' =>  $a->get_baseurl(),
 189                                 '$username' => $importer['username'],
 190                                 '$email' => $importer['email'],
 191                                 '$from' => $msg['from-name'],
 192                                 '$title' => stripslashes($msg['title']),
 193                                 '$body' => $body
 194                         ));
 195
 196                         $res = mail($importer['email'], t('New mail received at ') . $a->config['sitename'],
 197                                 $email_tpl, 'From: ' . t('Administrator') . '@' . $a->get_hostname() . "\r\n"
 198                                         . 'MIME-Version: 1.0' . "\r\n"
 199                                         . 'Content-type: text/plain; charset=UTF-8' . "\r\n"
 200                                         . 'Content-transfer-encoding: quoted-printable' . "\r\n"
 201                         );
 202                 }
 203                 xml_status(0);
 204                 // NOTREACHED
 205         }
 206
 207         logger('dfrn_notify: feed item count = ' . $feed->get_item_quantity());
 208
 209         foreach($feed->get_items() as $item) {
 210
 211                 $deleted = false;
 212
 213                 $rawdelete = $item->get_item_tags( NAMESPACE_TOMB , 'deleted-entry');
 214                 if(isset($rawdelete[0]['attribs']['']['ref'])) {
 215                         $uri = $rawthread[0]['attribs']['']['ref'];
 216                         $deleted = true;
 217                         if(isset($rawdelete[0]['attribs']['']['when'])) {
 218                                 $when = $rawthread[0]['attribs']['']['when'];
 219                                 $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 220                         }
 221                         else
 222                                 $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 223                 }
 224                 if($deleted) {
 225                         $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 226                                 dbesc($uri),
 227                                 intval($importer['importer_uid'])
 228                         );
 229                         if(count($r)) {
 230                                 $item = $r[0];
 231                                 if($item['uri'] == $item['parent-uri']) {
 232                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 233                                                 WHERE `parent-uri` = '%s' AND `uid` = %d",
 234                                                 dbesc($when),
 235                                                 dbesc(datetime_convert()),
 236                                                 dbesc($item['uri']),
 237                                                 intval($importer['importer_uid'])
 238                                         );
 239                                 }
 240                                 else {
 241                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 242                                                 WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 243                                                 dbesc($when),
 244                                                 dbesc(datetime_convert()),
 245                                                 dbesc($uri),
 246                                                 intval($importer['importer_uid'])
 247                                         );
 248                                         if($item['last-child']) {
 249                                                 // ensure that last-child is set in case the comment that had it just got wiped.
 250                                                 $q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 251                                                         dbesc(datetime_convert()),
 252                                                         dbesc($item['parent-uri']),
 253                                                         intval($item['uid'])
 254                                                 );
 255                                                 // who is the last child now?
 256                                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 257                                                         ORDER BY `created` DESC LIMIT 1",
 258                                                                 dbesc($item['parent-uri']),
 259                                                                 intval($importer['importer_uid'])
 260                                                 );
 261                                                 if(count($r)) {
 262                                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 263                                                                 intval($r[0]['id'])
 264                                                         );
 265                                                 }
 266                                         }
 267                                 }
 268                         }
 269                         continue;
 270                 }
 271
 272                 $is_reply = false;
 273                 $item_id = $item->get_id();
 274                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
 275                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 276                         $is_reply = true;
 277                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 278                 }
 279
 280                 if($is_reply) {
 281                         if($feed->get_item_quantity() == 1) {
 282                                 logger('dfrn_notify: received remote comment');
 283                                 $is_like = false;
 284                                 // remote reply to our post. Import and then notify everybody else.
 285                                 $datarray = get_atom_elements($feed,$item);
 286                                 $datarray['type'] = 'remote-comment';
 287                                 $datarray['wall'] = 1;
 288                                 $datarray['parent-uri'] = $parent_uri;
 289                                 $datarray['uid'] = $importer['importer_uid'];
 290                                 $datarray['contact-id'] = $importer['id'];
 291                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 292                                         $is_like = true;
 293                                         $datarray['type'] = 'activity';
 294                                         $datarray['gravity'] = GRAVITY_LIKE;
 295                                         $datarray['last-child'] = 0;
 296                                 }
 297                                 $posted_id = item_store($datarray);
 298
 299                                 if($posted_id) {
 300                                         if(! $is_like) {
 301                                                 $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 302                                                         intval($posted_id),
 303                                                         intval($importer['importer_uid'])
 304                                                 );
 305                                                 if(count($r)) {
 306                                                         $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
 307                                                                 dbesc(datetime_convert()),
 308                                                                 intval($importer['importer_uid']),
 309                                                                 intval($r[0]['parent'])
 310                                                         );
 311                                                 }
 312                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 313                                                                 dbesc(datetime_convert()),
 314                                                                 intval($importer['importer_uid']),
 315                                                                 intval($posted_id)
 316                                                 );
 317                                         }
 318
 319                                         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 320
 321                                         //proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"comment-import\" \"$posted_id\" &", array(),$foo));
 322                                         proc_run($php_path,"include/notifier.php","comment-import","$posted_id");
 323
 324                                         if((! $is_like) && ($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 325                                                 require_once('bbcode.php');
 326                                                 $from = stripslashes($datarray['author-name']);
 327                                                 $tpl = load_view_file('view/cmnt_received_eml.tpl');
 328                                                 $email_tpl = replace_macros($tpl, array(
 329                                                         '$sitename' => $a->config['sitename'],
 330                                                         '$siteurl' =>  $a->get_baseurl(),
 331                                                         '$username' => $importer['username'],
 332                                                         '$email' => $importer['email'],
 333                                                         '$display' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 334                                                         '$from' => $from,
 335                                                         '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 336                                                 ));
 337
 338                                                 $res = mail($importer['email'], $from . t(' commented on an item at ') . $a->config['sitename'],
 339                                                         $email_tpl, "From: " . t('Administrator') . '@' . $a->get_hostname() );
 340                                         }
 341                                 }
 342
 343                                 xml_status(0);
 344                                 // NOTREACHED
 345
 346                         }
 347                         else {
 348                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 349
 350                                 $item_id = $item->get_id();
 351
 352                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 353                                         dbesc($item_id),
 354                                         intval($importer['importer_uid'])
 355                                 );
 356                                 // FIXME update content if 'updated' changes
 357                                 if(count($r)) {
 358                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 359                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 360                                                 $r = q("UPDATE `item` SET `last-child` = %d, `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 361                                                         intval($allow[0]['data']),
 362                                                         dbesc(datetime_convert()),
 363                                                         dbesc($item_id),
 364                                                         intval($importer['importer_uid'])
 365                                                 );
 366                                         }
 367                                         continue;
 368                                 }
 369                                 $datarray = get_atom_elements($feed,$item);
 370                                 $datarray['parent-uri'] = $parent_uri;
 371                                 $datarray['uid'] = $importer['importer_uid'];
 372                                 $datarray['contact-id'] = $importer['id'];
 373                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 374                                         $datarray['type'] = 'activity';
 375                                         $datarray['gravity'] = GRAVITY_LIKE;
 376                                 }
 377
 378                                 $r = item_store($datarray);
 379
 380                                 // find out if our user is involved in this conversation and wants to be notified.
 381
 382                                 if(($datarray['type'] != 'activity') && ($importer['notify-flags'] & NOTIFY_COMMENT)) {
 383
 384                                         $myconv = q("SELECT `author-link` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d",
 385                                                 dbesc($parent_uri),
 386                                                 intval($importer['importer_uid'])
 387                                         );
 388                                         if(count($myconv)) {
 389                                                 foreach($myconv as $conv) {
 390                                                         if($conv['author-link'] != $importer['url'])
 391                                                                 continue;
 392                                                         require_once('bbcode.php');
 393                                                         $from = stripslashes($datarray['author-name']);
 394                                                         $tpl = load_view_file('view/cmnt_received_eml.tpl');
 395                                                         $email_tpl = replace_macros($tpl, array(
 396                                                                 '$sitename' => $a->config['sitename'],
 397                                                                 '$siteurl' =>  $a->get_baseurl(),
 398                                                                 '$username' => $importer['username'],
 399                                                                 '$email' => $importer['email'],
 400                                                                 '$from' => $from,
 401                                                                 '$display' => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $r,
 402                                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 403                                                         ));
 404
 405                                                         $res = mail($importer['email'], $from . t(" commented on an item at ")
 406                                                                 . $a->config['sitename'],
 407                                                                 $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 408                                                         break;
 409                                                 }
 410                                         }
 411                                 }
 412                                 continue;
 413                         }
 414                 }
 415                 else {
 416                         // Head post of a conversation. Have we seen it? If not, import it.
 417
 418                         $item_id = $item->get_id();
 419                         $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 420                                 dbesc($item_id),
 421                                 intval($importer['importer_uid'])
 422                         );
 423                         if(count($r)) {
 424                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 425                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 426                                         $r = q("UPDATE `item` SET `last-child` = %d, `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 427                                                 intval($allow[0]['data']),
 428                                                 dbesc(datetime_convert()),
 429                                                 dbesc($item_id),
 430                                                 intval($importer['importer_uid'])
 431                                         );
 432                                 }
 433                                 continue;
 434                         }
 435
 436
 437                         $datarray = get_atom_elements($feed,$item);
 438                         $datarray['parent-uri'] = $item_id;
 439                         $datarray['uid'] = $importer['importer_uid'];
 440                         $datarray['contact-id'] = $importer['id'];
 441                         $r = item_store($datarray);
 442                         continue;
 443                 }
 444         }
 445
 446         xml_status(0);
 447         // NOTREACHED
 448
 449 }
 450
 451
 452 function dfrn_notify_content(&$a) {
 453
 454         if(x($_GET,'dfrn_id')) {
 455
 456                 // initial communication from external contact, $direction is their direction.
 457                 // If this is a duplex communication, ours will be the opposite.
 458
 459                 $dfrn_id = notags(trim($_GET['dfrn_id']));
 460                 $dfrn_version = (float) $_GET['dfrn_version'];
 461
 462                 logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
 463
 464                 $direction = (-1);
 465                 if(strpos($dfrn_id,':') == 1) {
 466                         $direction = intval(substr($dfrn_id,0,1));
 467                         $dfrn_id = substr($dfrn_id,2);
 468                 }
 469
 470                 $hash = random_string();
 471
 472                 $status = 0;
 473
 474                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 475
 476                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 477                         VALUES( '%s', '%s', %d ) ",
 478                         dbesc($hash),
 479                         dbesc($dfrn_id),
 480                         intval(time() + 90 )
 481                 );
 482
 483                 logger('dfrn_notify: challenge=' . $hash . ' return value=' . $r);
 484
 485                 $sql_extra = '';
 486                 switch($direction) {
 487                         case (-1):
 488                                 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
 489                                 $my_id = $dfrn_id;
 490                                 break;
 491                         case 0:
 492                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 493                                 $my_id = '1:' . $dfrn_id;
 494                                 break;
 495                         case 1:
 496                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 497                                 $my_id = '0:' . $dfrn_id;
 498                                 break;
 499                         default:
 500                                 $status = 1;
 501                                 break; // NOTREACHED
 502                 }
 503
 504                 $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
 505                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
 506                                 dbesc($a->argv[1])
 507                 );
 508
 509                 if(! count($r))
 510                         $status = 1;
 511
 512                 $challenge = '';
 513                 $encrypted_id = '';
 514                 $id_str = $my_id . '.' . mt_rand(1000,9999);
 515
 516                 if((($r[0]['duplex']) && strlen($r[0]['prvkey'])) || (! strlen($r[0]['pubkey']))) {
 517                         openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 518                         openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 519                 }
 520                 else {
 521                         openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
 522                         openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
 523                 }
 524
 525                 $challenge    = bin2hex($challenge);
 526                 $encrypted_id = bin2hex($encrypted_id);
 527
 528                 $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 529
 530                 $rino_enable = get_config('system','rino_encrypt');
 531
 532                 if(! $rino_enable)
 533                         $rino = 0;
 534
 535
 536                 header("Content-type: text/xml");
 537
 538                 echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
 539                         . '<dfrn_notify>' . "\r\n"
 540                         . "\t" . '<status>' . $status . '</status>' . "\r\n"
 541                         . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
 542                         . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
 543                         . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
 544                         . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
 545                         . '</dfrn_notify>' . "\r\n" ;
 546
 547                 killme();
 548         }
 549
 550 }