mod/dfrn_notify.php

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