mod/dfrn_notify.php

   1 <?php
   2
   3 require_once('library/simplepie/simplepie.inc');
   4 require_once('include/items.php');
   5 require_once('include/event.php');
   6
   7
   8 function dfrn_notify_post(&$a) {
   9
  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
  18         $writable = (-1);
  19         if($dfrn_version >= 2.21) {
  20                 $writable = (($perm === 'rw') ? 1 : 0);
  21         }
  22
  23         $direction = (-1);
  24         if(strpos($dfrn_id,':') == 1) {
  25                 $direction = intval(substr($dfrn_id,0,1));
  26                 $dfrn_id = substr($dfrn_id,2);
  27         }
  28
  29         $r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  30                 dbesc($dfrn_id),
  31                 dbesc($challenge)
  32         );
  33         if(! count($r)) {
  34                 logger('dfrn_notify: could not match challenge to dfrn_id ' . $dfrn_id . ' challenge=' . $challenge);
  35                 xml_status(3);
  36         }
  37
  38         $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  39                 dbesc($dfrn_id),
  40                 dbesc($challenge)
  41         );
  42
  43         // find the local user who owns this relationship.
  44
  45         $sql_extra = '';
  46         switch($direction) {
  47                 case (-1):
  48                         $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
  49                         break;
  50                 case 0:
  51                         $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  52                         break;
  53                 case 1:
  54                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  55                         break;
  56                 default:
  57                         xml_status(3);
  58                         break; // NOTREACHED
  59         }
  60
  61         // be careful - $importer will contain both the contact information for the contact
  62         // sending us the post, and also the user information for the person receiving it.
  63         // since they are mixed together, it is easy to get them confused.
  64
  65         $r = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
  66                                         `contact`.`pubkey` AS `cpubkey`,
  67                                         `contact`.`prvkey` AS `cprvkey`,
  68                                         `contact`.`thumb` AS `thumb`,
  69                                         `contact`.`url` as `url`,
  70                                         `contact`.`name` as `senderName`,
  71                                         `user`.*
  72                         FROM `contact`
  73                         LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  74                         WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
  75                                 AND `user`.`nickname` = '%s' AND `user`.`account_expired` = 0 $sql_extra LIMIT 1",
  76                 dbesc($a->argv[1])
  77         );
  78
  79         if(! count($r)) {
  80                 logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
  81                 xml_status(3);
  82                 //NOTREACHED
  83         }
  84
  85         // $importer in this case contains the contact record for the remote contact joined with the user record of our user.
  86
  87         $importer = $r[0];
  88
  89         if(($writable != (-1)) && ($writable != $importer['writable'])) {
  90                 q("UPDATE `contact` SET `writable` = %d WHERE `id` = %d LIMIT 1",
  91                         intval($writable),
  92                         intval($importer['id'])
  93                 );
  94                 $importer['writable'] = $writable;
  95         }
  96
  97         logger('dfrn_notify: received notify from ' . $importer['name'] . ' for ' . $importer['username']);
  98         logger('dfrn_notify: data: ' . $data, LOGGER_DATA);
  99
 100         if($dissolve == 1) {
 101
 102                 /**
 103                  * Relationship is dissolved permanently
 104                  */
 105
 106                 require_once('include/Contact.php');
 107                 contact_remove($importer['id']);
 108                 logger('relationship dissolved : ' . $importer['name'] . ' dissolved ' . $importer['username']);
 109                 xml_status(0);
 110
 111         }
 112
 113         if(strlen($key)) {
 114                 $rawkey = hex2bin(trim($key));
 115                 logger('rino: md5 raw key: ' . md5($rawkey));
 116                 $final_key = '';
 117
 118                 if($dfrn_version >= 2.1) {
 119                         if((($importer['duplex']) && strlen($importer['cprvkey'])) || (! strlen($importer['cpubkey']))) {
 120                                 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
 121                         }
 122                         else {
 123                                 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
 124                         }
 125                 }
 126                 else {
 127                         if((($importer['duplex']) && strlen($importer['cpubkey'])) || (! strlen($importer['cprvkey']))) {
 128                                 openssl_public_decrypt($rawkey,$final_key,$importer['cpubkey']);
 129                         }
 130                         else {
 131                                 openssl_private_decrypt($rawkey,$final_key,$importer['cprvkey']);
 132                         }
 133                 }
 134
 135                 logger('rino: received key : ' . $final_key);
 136                 $data = aes_decrypt(hex2bin($data),$final_key);
 137                 logger('rino: decrypted data: ' . $data, LOGGER_DATA);
 138         }
 139
 140
 141         if($importer['readonly']) {
 142                 // We aren't receiving stuff from this person. But we will quietly ignore them
 143                 // rather than a blatant "go away" message.
 144                 logger('dfrn_notify: ignoring');
 145                 xml_status(0);
 146                 //NOTREACHED
 147         }
 148
 149         // Consume notification feed. This may differ from consuming a public feed in several ways
 150         // - might contain email or friend suggestions
 151         // - might contain remote followup to our message
 152         //              - in which case we need to accept it and then notify other conversants
 153         // - we may need to send various email notifications
 154
 155         $feed = new SimplePie();
 156         $feed->set_raw_data($data);
 157         $feed->enable_order_by_date(false);
 158         $feed->init();
 159
 160         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
 161         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
 162                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
 163                 $newloc = array();
 164                 $newloc['uid'] = $importer['importer_uid'];
 165                 $newloc['cid'] = $importer['id'];
 166                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
 167                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
 168                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
 169                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
 170                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
 171                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
 172                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
 173                 $newloc['site-pubkey'] = notags(unxmlify($base['site-pubkey'][0]['data']));
 174                 $newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
 175                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));
 176
 177                 // TODO
 178                 // merge with current record, current contents have priority
 179                 // update record, set url-updated
 180                 // update profile photos
 181                 // schedule a scan?
 182
 183         }
 184
 185         // handle friend suggestion notification
 186
 187         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
 188         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
 189                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
 190                 $fsugg = array();
 191                 $fsugg['uid'] = $importer['importer_uid'];
 192                 $fsugg['cid'] = $importer['id'];
 193                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
 194                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
 195                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
 196                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
 197                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
 198
 199                 // Does our member already have a friend matching this description?
 200
 201                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `url` = '%s' AND `uid` = %d LIMIT 1",
 202                         dbesc($fsugg['name']),
 203                         dbesc($fsugg['url']),
 204                         intval($fsugg['uid'])
 205                 );
 206                 if(count($r))
 207                         xml_status(0);
 208
 209                 // Do we already have an fcontact record for this person?
 210
 211                 $fid = 0;
 212                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
 213                         dbesc($fsugg['url']),
 214                         dbesc($fsugg['name']),
 215                         dbesc($fsugg['request'])
 216                 );
 217                 if(count($r)) {
 218                         $fid = $r[0]['id'];
 219                 }
 220                 if(! $fid)
 221                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
 222                         dbesc($fsugg['name']),
 223                         dbesc($fsugg['url']),
 224                         dbesc($fsugg['photo']),
 225                         dbesc($fsugg['request'])
 226                 );
 227                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
 228                         dbesc($fsugg['url']),
 229                         dbesc($fsugg['name']),
 230                         dbesc($fsugg['request'])
 231                 );
 232                 if(count($r)) {
 233                         $fid = $r[0]['id'];
 234                 }
 235                 // database record did not get created. Quietly give up.
 236                 else
 237                         xml_status(0);
 238
 239                 $hash = random_string();
 240
 241                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
 242                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
 243                         intval($fsugg['uid']),
 244                         intval($fid),
 245                         intval($fsugg['cid']),
 246                         dbesc($fsugg['body']),
 247                         dbesc($hash),
 248                         dbesc(datetime_convert()),
 249                         intval(0)
 250                 );
 251
 252                 // TODO - send email notify (which may require a new notification preference)
 253
 254                 xml_status(0);
 255         }
 256
 257         $ismail = false;
 258
 259         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
 260         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
 261
 262                 logger('dfrn_notify: private message received');
 263
 264                 $ismail = true;
 265                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
 266
 267                 $msg = array();
 268                 $msg['uid'] = $importer['importer_uid'];
 269                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
 270                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
 271                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
 272                 $msg['contact-id'] = $importer['id'];
 273                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
 274                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
 275                 $msg['seen'] = 0;
 276                 $msg['replied'] = 0;
 277                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
 278                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
 279                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
 280
 281                 dbesc_array($msg);
 282
 283                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
 284                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
 285
 286                 // send email notification if requested.
 287
 288                 require_once('bbcode.php');
 289                 if($importer['notify-flags'] & NOTIFY_MAIL) {
 290
 291                         push_lang($importer['language']);
 292
 293                         // name of the automated email sender
 294                         $msg['notificationfromname']    = t('Administrator');
 295                         // noreply address to send from
 296                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 297
 298                         // text version
 299                         // process the message body to display properly in text mode
 300                         //              1) substitute a \n character for the "\" then "n", so it behaves properly (it doesn't come in as a \n character)
 301                         //              2) remove escape slashes
 302                         //              3) decode any bbcode from the message editor
 303                         //              4) decode any encoded html tags
 304                         //              5) remove html tags
 305                         $msg['textversion']
 306                                 = strip_tags(html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r", "\\n"), "\n",$msg['body']))),ENT_QUOTES,'UTF-8'));
 307
 308                         // html version
 309                         // process the message body to display properly in text mode
 310                         //              1) substitute a <br /> tag for the "\" then "n", so it behaves properly (it doesn't come in as a \n character)
 311                         //              2) remove escape slashes
 312                         //              3) decode any bbcode from the message editor
 313                         //              4) decode any encoded html tags
 314                         $msg['htmlversion']
 315                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$msg['body']))));
 316
 317                         // load the template for private message notifications
 318                         $tpl = get_intltext_template('mail_received_html_body_eml.tpl');
 319                         $email_html_body_tpl = replace_macros($tpl,array(
 320                                 '$username'     => $importer['username'],
 321                                 '$siteName'             => $a->config['sitename'],                      // name of this site
 322                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 323                                 '$thumb'                => $importer['thumb'],                          // thumbnail url for sender icon
 324                                 '$email'                => $importer['email'],                          // email address to send to
 325                                 '$url'                  => $importer['url'],                            // full url for the site
 326                                 '$from'                 => $msg['from-name'],                           // name of the person sending the message
 327                                 '$title'                => stripslashes($msg['title']),                 // subject of the message
 328                                 '$htmlversion'  => $msg['htmlversion'],                                 // html version of the message
 329                                 '$mimeboundary' => $msg['mimeboundary'],                                // mime message divider
 330                                 '$hostname'             => $a->get_hostname()                           // name of this host
 331                         ));
 332
 333                         // load the template for private message notifications
 334                         $tpl = get_intltext_template('mail_received_text_body_eml.tpl');
 335                         $email_text_body_tpl = replace_macros($tpl,array(
 336                                 '$username'     => $importer['username'],
 337                                 '$siteName'             => $a->config['sitename'],                      // name of this site
 338                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 339                                 '$thumb'                => $importer['thumb'],                          // thumbnail url for sender icon
 340                                 '$email'                => $importer['email'],                          // email address to send to
 341                                 '$url'                  => $importer['url'],                            // full url for the site
 342                                 '$from'                 => $msg['from-name'],                           // name of the person sending the message
 343                                 '$title'                => stripslashes($msg['title']),                 // subject of the message
 344                                 '$textversion'  => $msg['textversion'],                                 // text version of the message
 345                                 '$mimeboundary' => $msg['mimeboundary'],                                // mime message divider
 346                                 '$hostname'             => $a->get_hostname()                           // name of this host
 347                         ));
 348
 349                         // use the EmailNotification library to send the message
 350                         require_once("include/EmailNotification.php");
 351                         EmailNotification::sendTextHtmlEmail(
 352                                 $msg['notificationfromname'],
 353                                 $msg['notificationfromemail'],
 354                                 $msg['notificationfromemail'],
 355                                 $importer['email'],
 356                                 t('New mail received at ') . $a->config['sitename'],
 357                                 $email_html_body_tpl,
 358                                 $email_text_body_tpl
 359                         );
 360
 361                         pop_lang();
 362                 }
 363                 xml_status(0);
 364                 // NOTREACHED
 365         }
 366
 367         logger('dfrn_notify: feed item count = ' . $feed->get_item_quantity());
 368
 369         // process any deleted entries
 370
 371         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
 372         if(is_array($del_entries) && count($del_entries)) {
 373                 foreach($del_entries as $dentry) {
 374                         $deleted = false;
 375                         if(isset($dentry['attribs']['']['ref'])) {
 376                                 $uri = $dentry['attribs']['']['ref'];
 377                                 $deleted = true;
 378                                 if(isset($dentry['attribs']['']['when'])) {
 379                                         $when = $dentry['attribs']['']['when'];
 380                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 381                                 }
 382                                 else
 383                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 384                         }
 385                         if($deleted) {
 386
 387                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `contact-id` = %d LIMIT 1",
 388                                         dbesc($uri),
 389                                         intval($importer['importer_uid']),
 390                                         intval($importer['id'])
 391                                 );
 392
 393                                 if(count($r)) {
 394                                         $item = $r[0];
 395
 396                                         if(! $item['deleted'])
 397                                                 logger('dfrn_notify: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
 398
 399                                         if($item['uri'] == $item['parent-uri']) {
 400                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 401                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
 402                                                         dbesc($when),
 403                                                         dbesc(datetime_convert()),
 404                                                         dbesc($item['uri']),
 405                                                         intval($importer['importer_uid'])
 406                                                 );
 407                                         }
 408                                         else {
 409                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 410                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 411                                                         dbesc($when),
 412                                                         dbesc(datetime_convert()),
 413                                                         dbesc($uri),
 414                                                         intval($importer['importer_uid'])
 415                                                 );
 416                                                 if($item['last-child']) {
 417                                                         // ensure that last-child is set in case the comment that had it just got wiped.
 418                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 419                                                                 dbesc(datetime_convert()),
 420                                                                 dbesc($item['parent-uri']),
 421                                                                 intval($item['uid'])
 422                                                         );
 423                                                         // who is the last child now?
 424                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 425                                                                 ORDER BY `created` DESC LIMIT 1",
 426                                                                         dbesc($item['parent-uri']),
 427                                                                         intval($importer['importer_uid'])
 428                                                         );
 429                                                         if(count($r)) {
 430                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 431                                                                         intval($r[0]['id'])
 432                                                                 );
 433                                                         }
 434                                                 }
 435                                         }
 436                                 }
 437                         }
 438                 }
 439         }
 440
 441
 442         foreach($feed->get_items() as $item) {
 443
 444                 $is_reply = false;
 445                 $item_id = $item->get_id();
 446                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
 447                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 448                         $is_reply = true;
 449                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 450                 }
 451
 452                 if($is_reply) {
 453
 454                         // was the top-level post for this reply written by somebody on this site? Specifically, the recipient?
 455
 456                         $r = q("select `item`.`id` from `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id` where `contact`.`self` = 1 AND `item`.`uri` = '%s' AND `item`.`uid` = %d LIMIT 1",
 457                                 dbesc($parent_uri),
 458                                 intval($importer['importer_uid'])
 459                         );
 460                         if($r && count($r)) {
 461
 462                                 logger('dfrn_notify: received remote comment');
 463                                 $is_like = false;
 464                                 // remote reply to our post. Import and then notify everybody else.
 465                                 $datarray = get_atom_elements($feed,$item);
 466                                 $datarray['type'] = 'remote-comment';
 467                                 $datarray['wall'] = 1;
 468                                 $datarray['parent-uri'] = $parent_uri;
 469                                 $datarray['uid'] = $importer['importer_uid'];
 470                                 $datarray['contact-id'] = $importer['id'];
 471                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 472                                         $is_like = true;
 473                                         $datarray['type'] = 'activity';
 474                                         $datarray['gravity'] = GRAVITY_LIKE;
 475                                         $datarray['last-child'] = 0;
 476                                 }
 477                                 $posted_id = item_store($datarray);
 478                                 $parent = 0;
 479
 480                                 if($posted_id) {
 481                                         $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 482                                                 intval($posted_id),
 483                                                 intval($importer['importer_uid'])
 484                                         );
 485                                         if(count($r))
 486                                                 $parent = $r[0]['parent'];
 487
 488                                         if(! $is_like) {
 489                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
 490                                                         dbesc(datetime_convert()),
 491                                                         intval($importer['importer_uid']),
 492                                                         intval($r[0]['parent'])
 493                                                 );
 494
 495                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 496                                                         dbesc(datetime_convert()),
 497                                                         intval($importer['importer_uid']),
 498                                                         intval($posted_id)
 499                                                 );
 500                                         }
 501
 502                                         if($posted_id && $parent) {
 503
 504                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
 505
 506                                                 if((! $is_like) && ($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 507                                                         push_lang($importer['language']);
 508                                                         require_once('bbcode.php');
 509                                                         $from = stripslashes($datarray['author-name']);
 510
 511                                                         // name of the automated email sender
 512                                                         $msg['notificationfromname']    = stripslashes($datarray['author-name']);;
 513                                                         // noreply address to send from
 514                                                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 515
 516                                                         // text version
 517                                                         // process the message body to display properly in text mode
 518                                                         $msg['textversion']
 519                                                                 = html_entity_decode(strip_tags(bbcode(stripslashes($datarray['body']))), ENT_QUOTES, 'UTF-8');
 520
 521                                                         // html version
 522                                                         // process the message body to display properly in text mode
 523                                                         $msg['htmlversion']
 524                                                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$datarray['body']))));
 525
 526                                                         $imgtouse = ((link_compare($datarray['author-link'],$importer['url'])) ? $importer['thumb'] : $datarray['author-avatar']);
 527
 528                                                         // load the template for private message notifications
 529                                                         $tpl = get_intltext_template('cmnt_received_html_body_eml.tpl');
 530                                                         $email_html_body_tpl = replace_macros($tpl,array(
 531                                                                 '$username'     => $importer['username'],
 532                                                                 '$sitename'             => $a->config['sitename'],                      // name of this site
 533                                                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 534                                                                 '$thumb'                => $imgtouse,                                           // thumbnail url for sender icon
 535                                                                 '$email'                => $importer['email'],                          // email address to send to
 536                                                                 '$url'                  => $datarray['author-link'],            // full url for the site
 537                                                                 '$from'                 => $from,                                                       // name of the person sending the message
 538                                                                 '$body'                 => $msg['htmlversion'],                         // html version of the message
 539                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 540                                                         ));
 541
 542                                                         // load the template for private message notifications
 543                                                         $tpl = get_intltext_template('cmnt_received_text_body_eml.tpl');
 544                                                         $email_text_body_tpl = replace_macros($tpl,array(
 545                                                                 '$username'     => $importer['username'],
 546                                                                 '$sitename'             => $a->config['sitename'],                      // name of this site
 547                                                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 548                                                                 '$thumb'                => $imgtouse,                                           // thumbnail url for sender icon
 549                                                                 '$email'                => $importer['email'],                          // email address to send to
 550                                                                 '$url'                  => $datarray['author-link'],            // full url for the site
 551                                                                 '$from'                 => $from,                                                       // name of the person sending the message
 552                                                                 '$body'                 => $msg['textversion'],                         // text version of the message
 553                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 554                                                         ));
 555
 556                                                         // use the EmailNotification library to send the message
 557                                                         require_once("include/EmailNotification.php");
 558                                                         EmailNotification::sendTextHtmlEmail(
 559                                                                 $msg['notificationfromname'],
 560                                                                 t("Administrator") . '@' . $a->get_hostname(),
 561                                                                 t("noreply") . '@' . $a->get_hostname(),
 562                                                                 $importer['email'],
 563                                                                 sprintf( t('%s commented on an item at %s'), $from , $a->config['sitename']),
 564                                                                 $email_html_body_tpl,
 565                                                                 $email_text_body_tpl
 566                                                         );
 567                                                         pop_lang();
 568                                                 }
 569                                         }
 570                                         xml_status(0);
 571                                         // NOTREACHED
 572                                 }
 573                         }
 574                         else {
 575
 576                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 577
 578                                 $item_id  = $item->get_id();
 579                                 $datarray = get_atom_elements($feed,$item);
 580
 581                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 582                                         dbesc($item_id),
 583                                         intval($importer['importer_uid'])
 584                                 );
 585
 586                                 // Update content if 'updated' changes
 587
 588                                 if(count($r)) {
 589                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
 590                                                 $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 591                                                         dbesc($datarray['body']),
 592                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
 593                                                         dbesc($item_id),
 594                                                         intval($importer['importer_uid'])
 595                                                 );
 596                                         }
 597
 598                                         // update last-child if it changes
 599
 600                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 601                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
 602                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
 603                                                         dbesc(datetime_convert()),
 604                                                         dbesc($parent_uri),
 605                                                         intval($importer['importer_uid'])
 606                                                 );
 607                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 608                                                         intval($allow[0]['data']),
 609                                                         dbesc(datetime_convert()),
 610                                                         dbesc($item_id),
 611                                                         intval($importer['importer_uid'])
 612                                                 );
 613                                         }
 614                                         continue;
 615                                 }
 616
 617                                 $datarray['parent-uri'] = $parent_uri;
 618                                 $datarray['uid'] = $importer['importer_uid'];
 619                                 $datarray['contact-id'] = $importer['id'];
 620                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 621                                         $datarray['type'] = 'activity';
 622                                         $datarray['gravity'] = GRAVITY_LIKE;
 623                                 }
 624                                 $posted_id = item_store($datarray);
 625
 626                                 // find out if our user is involved in this conversation and wants to be notified.
 627
 628                                 if(($datarray['type'] != 'activity') && ($importer['notify-flags'] & NOTIFY_COMMENT)) {
 629
 630                                         $myconv = q("SELECT `author-link`, `author-avatar` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
 631                                                 dbesc($parent_uri),
 632                                                 intval($importer['importer_uid'])
 633                                         );
 634                                         if(count($myconv)) {
 635                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
 636                                                 foreach($myconv as $conv) {
 637                                                         if(! link_compare($conv['author-link'],$importer_url))
 638                                                                 continue;
 639
 640                                                         push_lang($importer['language']);
 641                                                         require_once('bbcode.php');
 642                                                         $from = stripslashes($datarray['author-name']);
 643
 644                                                         // name of the automated email sender
 645                                                         $msg['notificationfromname']    = stripslashes($datarray['author-name']);;
 646                                                         // noreply address to send from
 647                                                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 648
 649                                                         // text version
 650                                                         // process the message body to display properly in text mode
 651                                                         $msg['textversion']
 652                                                                 = html_entity_decode(strip_tags(bbcode(stripslashes($datarray['body']))), ENT_QUOTES, 'UTF-8');
 653
 654                                                         // html version
 655                                                         // process the message body to display properly in text mode
 656                                                         $msg['htmlversion']
 657                                                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$datarray['body']))));
 658
 659                                                         $imgtouse = ((link_compare($datarray['author-link'],$importer['url'])) ? $importer['thumb'] : $datarray['author-avatar']);
 660
 661
 662                                                         // load the template for private message notifications
 663                                                         $tpl = get_intltext_template('cmnt_received_html_body_eml.tpl');
 664                                                         $email_html_body_tpl = replace_macros($tpl,array(
 665                                                                 '$username'     => $importer['username'],
 666                                                                 '$sitename'             => $a->config['sitename'],                              // name of this site
 667                                                                 '$siteurl'              => $a->get_baseurl(),                                   // descriptive url of this site
 668                                                                 '$thumb'                => $imgtouse,                                                   // thumbnail url for sender icon
 669                                                                 '$url'                  => $datarray['author-link'],                    // full url for the site
 670                                                                 '$from'                 => $from,                                                               // name of the person sending the message
 671                                                                 '$body'                 => $msg['htmlversion'],                                 // html version of the message
 672                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 673                                                         ));
 674
 675                                                         // load the template for private message notifications
 676                                                         $tpl = get_intltext_template('cmnt_received_text_body_eml.tpl');
 677                                                         $email_text_body_tpl = replace_macros($tpl,array(
 678                                                                 '$username'     => $importer['username'],
 679                                                                 '$sitename'             => $a->config['sitename'],                              // name of this site
 680                                                                 '$siteurl'              => $a->get_baseurl(),                                   // descriptive url of this site
 681                                                                 '$thumb'                => $imgtouse,                                                   // thumbnail url for sender icon
 682                                                                 '$url'                  => $datarray['author-link'],                    // full url for the site
 683                                                                 '$from'                 => $from,                                                               // name of the person sending the message
 684                                                                 '$body'                 => $msg['textversion'],                                 // text version of the message
 685                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 686                                                         ));
 687
 688                                                         // use the EmailNotification library to send the message
 689                                                         require_once("include/EmailNotification.php");
 690                                                         EmailNotification::sendTextHtmlEmail(
 691                                                                 $msg['notificationfromname'],
 692                                                                 t("Administrator@") . $a->get_hostname(),
 693                                                                 t("noreply") . '@' . $a->get_hostname(),
 694                                                                 $importer['email'],
 695                                                                 sprintf( t('%s commented on an item at %s'), $from , $a->config['sitename']),
 696                                                                 $email_html_body_tpl,
 697                                                                 $email_text_body_tpl
 698                                                         );
 699                                                         pop_lang();
 700                                                         break;
 701                                                 }
 702                                         }
 703                                 }
 704                                 continue;
 705                         }
 706                 }
 707
 708                 else {
 709
 710                         // Head post of a conversation. Have we seen it? If not, import it.
 711
 712
 713                         $item_id  = $item->get_id();
 714                         $datarray = get_atom_elements($feed,$item);
 715
 716                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
 717                                 $ev = bbtoevent($datarray['body']);
 718                                 if(x($ev,'desc') && x($ev,'start')) {
 719                                         $ev['cid'] = $importer['id'];
 720                                         $ev['uid'] = $importer['uid'];
 721                                         $ev['uri'] = $item_id;
 722                                         $ev['edited'] = $datarray['edited'];
 723                                         $ev['private'] = $datarray['private'];
 724
 725                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 726                                                 dbesc($item_id),
 727                                                 intval($importer['uid'])
 728                                         );
 729                                         if(count($r))
 730                                                 $ev['id'] = $r[0]['id'];
 731                                         $xyz = event_store($ev);
 732                                         continue;
 733                                 }
 734                         }
 735
 736                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 737                                 dbesc($item_id),
 738                                 intval($importer['importer_uid'])
 739                         );
 740
 741                         // Update content if 'updated' changes
 742
 743                         if(count($r)) {
 744                                 if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
 745                                         $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 746                                                 dbesc($datarray['body']),
 747                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
 748                                                 dbesc($item_id),
 749                                                 intval($importer['importer_uid'])
 750                                         );
 751                                 }
 752
 753                                 // update last-child if it changes
 754
 755                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 756                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 757                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 758                                                 intval($allow[0]['data']),
 759                                                 dbesc(datetime_convert()),
 760                                                 dbesc($item_id),
 761                                                 intval($importer['importer_uid'])
 762                                         );
 763                                 }
 764                                 continue;
 765                         }
 766
 767                         // This is my contact on another system, but it's really me.
 768                         // Turn this into a wall post.
 769
 770                         if($contact['remote_self'])
 771                                 $datarray['wall'] = 1;
 772
 773                         $datarray['parent-uri'] = $item_id;
 774                         $datarray['uid'] = $importer['importer_uid'];
 775                         $datarray['contact-id'] = $importer['id'];
 776                         $r = item_store($datarray);
 777                         continue;
 778                 }
 779         }
 780
 781         xml_status(0);
 782         // NOTREACHED
 783
 784 }
 785
 786
 787 function dfrn_notify_content(&$a) {
 788
 789         if(x($_GET,'dfrn_id')) {
 790
 791                 // initial communication from external contact, $direction is their direction.
 792                 // If this is a duplex communication, ours will be the opposite.
 793
 794                 $dfrn_id = notags(trim($_GET['dfrn_id']));
 795                 $dfrn_version = (float) $_GET['dfrn_version'];
 796
 797                 logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
 798
 799                 $direction = (-1);
 800                 if(strpos($dfrn_id,':') == 1) {
 801                         $direction = intval(substr($dfrn_id,0,1));
 802                         $dfrn_id = substr($dfrn_id,2);
 803                 }
 804
 805                 $hash = random_string();
 806
 807                 $status = 0;
 808
 809                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 810
 811                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 812                         VALUES( '%s', '%s', %d ) ",
 813                         dbesc($hash),
 814                         dbesc($dfrn_id),
 815                         intval(time() + 90 )
 816                 );
 817
 818                 logger('dfrn_notify: challenge=' . $hash, LOGGER_DEBUG );
 819
 820                 $sql_extra = '';
 821                 switch($direction) {
 822                         case (-1):
 823                                 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
 824                                 $my_id = $dfrn_id;
 825                                 break;
 826                         case 0:
 827                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 828                                 $my_id = '1:' . $dfrn_id;
 829                                 break;
 830                         case 1:
 831                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 832                                 $my_id = '0:' . $dfrn_id;
 833                                 break;
 834                         default:
 835                                 $status = 1;
 836                                 break; // NOTREACHED
 837                 }
 838
 839                 $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
 840                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s'
 841                                 AND `user`.`account_expired` = 0 $sql_extra LIMIT 1",
 842                                 dbesc($a->argv[1])
 843                 );
 844
 845                 if(! count($r))
 846                         $status = 1;
 847
 848                 $challenge = '';
 849                 $encrypted_id = '';
 850                 $id_str = $my_id . '.' . mt_rand(1000,9999);
 851
 852                 $prv_key = trim($r[0]['prvkey']);
 853                 $pub_key = trim($r[0]['pubkey']);
 854                 $dplx = intval($r[0]['duplex']);
 855
 856                 if((($dplx) && (strlen($prv_key))) || ((strlen($prv_key)) && (!(strlen($pub_key))))) {
 857                         openssl_private_encrypt($hash,$challenge,$prv_key);
 858                         openssl_private_encrypt($id_str,$encrypted_id,$prv_key);
 859                 }
 860                 elseif(strlen($pub_key)) {
 861                         openssl_public_encrypt($hash,$challenge,$pub_key);
 862                         openssl_public_encrypt($id_str,$encrypted_id,$pub_key);
 863                 }
 864                 else
 865                         $status = 1;
 866
 867                 $challenge    = bin2hex($challenge);
 868                 $encrypted_id = bin2hex($encrypted_id);
 869
 870                 $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 871
 872                 $rino_enable = get_config('system','rino_encrypt');
 873
 874                 if(! $rino_enable)
 875                         $rino = 0;
 876
 877
 878                 header("Content-type: text/xml");
 879
 880                 echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
 881                         . '<dfrn_notify>' . "\r\n"
 882                         . "\t" . '<status>' . $status . '</status>' . "\r\n"
 883                         . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
 884                         . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
 885                         . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
 886                         . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
 887                         . '</dfrn_notify>' . "\r\n" ;
 888
 889                 killme();
 890         }
 891
 892 }