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
 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         $ismail = false;
 158
 159         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
 160         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
 161
 162                 logger('dfrn_notify: private message received');
 163
 164                 $ismail = true;
 165                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
 166
 167                 $msg = array();
 168                 $msg['uid'] = $importer['importer_uid'];
 169                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
 170                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
 171                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
 172                 $msg['contact-id'] = $importer['id'];
 173                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
 174                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
 175                 $msg['seen'] = 0;
 176                 $msg['replied'] = 0;
 177                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
 178                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
 179                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
 180
 181                 dbesc_array($msg);
 182
 183                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
 184                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
 185
 186                 // send email notification if requested.
 187
 188                 require_once('bbcode.php');
 189                 if($importer['notify-flags'] & NOTIFY_MAIL) {
 190
 191                         push_lang($importer['language']);
 192
 193                         // name of the automated email sender
 194                         $msg['notificationfromname']    = t('Administrator');
 195                         // noreply address to send from
 196                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 197
 198                         // text version
 199                         // process the message body to display properly in text mode
 200                         //              1) substitute a \n character for the "\" then "n", so it behaves properly (it doesn't come in as a \n character)
 201                         //              2) remove escape slashes
 202                         //              3) decode any bbcode from the message editor
 203                         //              4) decode any encoded html tags
 204                         //              5) remove html tags
 205                         $msg['textversion']
 206                                 = strip_tags(html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r", "\\n"), "\n",$msg['body']))),ENT_QUOTES,'UTF-8'));
 207
 208                         // html version
 209                         // process the message body to display properly in text mode
 210                         //              1) substitute a <br /> tag for the "\" then "n", so it behaves properly (it doesn't come in as a \n character)
 211                         //              2) remove escape slashes
 212                         //              3) decode any bbcode from the message editor
 213                         //              4) decode any encoded html tags
 214                         $msg['htmlversion']
 215                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$msg['body']))));
 216
 217                         // load the template for private message notifications
 218                         $tpl = get_intltext_template('mail_received_html_body_eml.tpl');
 219                         $email_html_body_tpl = replace_macros($tpl,array(
 220                                 '$username'     => $importer['username'],
 221                                 '$siteName'             => $a->config['sitename'],                      // name of this site
 222                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 223                                 '$thumb'                => $importer['thumb'],                          // thumbnail url for sender icon
 224                                 '$email'                => $importer['email'],                          // email address to send to
 225                                 '$url'                  => $importer['url'],                            // full url for the site
 226                                 '$from'                 => $msg['from-name'],                           // name of the person sending the message
 227                                 '$title'                => stripslashes($msg['title']),                 // subject of the message
 228                                 '$htmlversion'  => $msg['htmlversion'],                                 // html version of the message
 229                                 '$mimeboundary' => $msg['mimeboundary'],                                // mime message divider
 230                                 '$hostname'             => $a->get_hostname()                           // name of this host
 231                         ));
 232
 233                         // load the template for private message notifications
 234                         $tpl = get_intltext_template('mail_received_text_body_eml.tpl');
 235                         $email_text_body_tpl = replace_macros($tpl,array(
 236                                 '$username'     => $importer['username'],
 237                                 '$siteName'             => $a->config['sitename'],                      // name of this site
 238                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 239                                 '$thumb'                => $importer['thumb'],                          // thumbnail url for sender icon
 240                                 '$email'                => $importer['email'],                          // email address to send to
 241                                 '$url'                  => $importer['url'],                            // full url for the site
 242                                 '$from'                 => $msg['from-name'],                           // name of the person sending the message
 243                                 '$title'                => stripslashes($msg['title']),                 // subject of the message
 244                                 '$textversion'  => $msg['textversion'],                                 // text version of the message
 245                                 '$mimeboundary' => $msg['mimeboundary'],                                // mime message divider
 246                                 '$hostname'             => $a->get_hostname()                           // name of this host
 247                         ));
 248
 249                         // use the EmailNotification library to send the message
 250                         require_once("include/EmailNotification.php");
 251                         EmailNotification::sendTextHtmlEmail(
 252                                 $msg['notificationfromname'],
 253                                 $msg['notificationfromemail'],
 254                                 $msg['notificationfromemail'],
 255                                 $importer['email'],
 256                                 t('New mail received at ') . $a->config['sitename'],
 257                                 $email_html_body_tpl,
 258                                 $email_text_body_tpl
 259                         );
 260
 261                         pop_lang();
 262                 }
 263                 xml_status(0);
 264                 // NOTREACHED
 265         }
 266
 267         logger('dfrn_notify: feed item count = ' . $feed->get_item_quantity());
 268
 269         // process any deleted entries
 270
 271         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
 272         if(is_array($del_entries) && count($del_entries)) {
 273                 foreach($del_entries as $dentry) {
 274                         $deleted = false;
 275                         if(isset($dentry['attribs']['']['ref'])) {
 276                                 $uri = $dentry['attribs']['']['ref'];
 277                                 $deleted = true;
 278                                 if(isset($dentry['attribs']['']['when'])) {
 279                                         $when = $dentry['attribs']['']['when'];
 280                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 281                                 }
 282                                 else
 283                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 284                         }
 285                         if($deleted) {
 286
 287                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `contact-id` = %d LIMIT 1",
 288                                         dbesc($uri),
 289                                         intval($importer['importer_uid']),
 290                                         intval($importer['id'])
 291                                 );
 292
 293                                 if(count($r)) {
 294                                         $item = $r[0];
 295
 296                                         if(! $item['deleted'])
 297                                                 logger('dfrn_notify: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
 298
 299                                         if($item['uri'] == $item['parent-uri']) {
 300                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 301                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
 302                                                         dbesc($when),
 303                                                         dbesc(datetime_convert()),
 304                                                         dbesc($item['uri']),
 305                                                         intval($importer['importer_uid'])
 306                                                 );
 307                                         }
 308                                         else {
 309                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 310                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 311                                                         dbesc($when),
 312                                                         dbesc(datetime_convert()),
 313                                                         dbesc($uri),
 314                                                         intval($importer['importer_uid'])
 315                                                 );
 316                                                 if($item['last-child']) {
 317                                                         // ensure that last-child is set in case the comment that had it just got wiped.
 318                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 319                                                                 dbesc(datetime_convert()),
 320                                                                 dbesc($item['parent-uri']),
 321                                                                 intval($item['uid'])
 322                                                         );
 323                                                         // who is the last child now?
 324                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 325                                                                 ORDER BY `created` DESC LIMIT 1",
 326                                                                         dbesc($item['parent-uri']),
 327                                                                         intval($importer['importer_uid'])
 328                                                         );
 329                                                         if(count($r)) {
 330                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 331                                                                         intval($r[0]['id'])
 332                                                                 );
 333                                                         }
 334                                                 }
 335                                         }
 336                                 }
 337                         }
 338                 }
 339         }
 340
 341
 342         foreach($feed->get_items() as $item) {
 343
 344                 $is_reply = false;
 345                 $item_id = $item->get_id();
 346                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
 347                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 348                         $is_reply = true;
 349                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 350                 }
 351
 352                 if($is_reply) {
 353                         if($feed->get_item_quantity() == 1) {
 354                                 logger('dfrn_notify: received remote comment');
 355                                 $is_like = false;
 356                                 // remote reply to our post. Import and then notify everybody else.
 357                                 $datarray = get_atom_elements($feed,$item);
 358                                 $datarray['type'] = 'remote-comment';
 359                                 $datarray['wall'] = 1;
 360                                 $datarray['parent-uri'] = $parent_uri;
 361                                 $datarray['uid'] = $importer['importer_uid'];
 362                                 $datarray['contact-id'] = $importer['id'];
 363                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 364                                         $is_like = true;
 365                                         $datarray['type'] = 'activity';
 366                                         $datarray['gravity'] = GRAVITY_LIKE;
 367                                         $datarray['last-child'] = 0;
 368                                 }
 369                                 $posted_id = item_store($datarray);
 370                                 $parent = 0;
 371
 372                                 if($posted_id) {
 373                                         $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 374                                                 intval($posted_id),
 375                                                 intval($importer['importer_uid'])
 376                                         );
 377                                         if(count($r))
 378                                                 $parent = $r[0]['parent'];
 379
 380                                         if(! $is_like) {
 381                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
 382                                                         dbesc(datetime_convert()),
 383                                                         intval($importer['importer_uid']),
 384                                                         intval($r[0]['parent'])
 385                                                 );
 386
 387                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 388                                                         dbesc(datetime_convert()),
 389                                                         intval($importer['importer_uid']),
 390                                                         intval($posted_id)
 391                                                 );
 392                                         }
 393
 394                                         if($posted_id && $parent) {
 395
 396                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
 397
 398                                                 if((! $is_like) && ($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 399                                                         push_lang($importer['language']);
 400                                                         require_once('bbcode.php');
 401                                                         $from = stripslashes($datarray['author-name']);
 402
 403                                                         // name of the automated email sender
 404                                                         $msg['notificationfromname']    = stripslashes($datarray['author-name']);;
 405                                                         // noreply address to send from
 406                                                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 407
 408                                                         // text version
 409                                                         // process the message body to display properly in text mode
 410                                                         $msg['textversion']
 411                                                                 = html_entity_decode(strip_tags(bbcode(stripslashes($datarray['body']))), ENT_QUOTES, 'UTF-8');
 412
 413                                                         // html version
 414                                                         // process the message body to display properly in text mode
 415                                                         $msg['htmlversion']
 416                                                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$datarray['body']))));
 417
 418                                                         // load the template for private message notifications
 419                                                         $tpl = get_intltext_template('cmnt_received_html_body_eml.tpl');
 420                                                         $email_html_body_tpl = replace_macros($tpl,array(
 421                                                                 '$username'     => $importer['username'],
 422                                                                 '$sitename'             => $a->config['sitename'],                      // name of this site
 423                                                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 424                                                                 '$thumb'                => $datarray['author-avatar'],                  // thumbnail url for sender icon
 425                                                                 '$email'                => $importer['email'],                          // email address to send to
 426                                                                 '$url'                  => $datarray['author-link'],                    // full url for the site
 427                                                                 '$from'                 => $from,                                       // name of the person sending the message
 428                                                                 '$body'                 => $msg['htmlversion'],                 // html version of the message
 429                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 430                                                         ));
 431
 432                                                         // load the template for private message notifications
 433                                                         $tpl = get_intltext_template('cmnt_received_text_body_eml.tpl');
 434                                                         $email_text_body_tpl = replace_macros($tpl,array(
 435                                                                 '$username'     => $importer['username'],
 436                                                                 '$sitename'             => $a->config['sitename'],                      // name of this site
 437                                                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 438                                                                 '$thumb'                => $datarray['author-avatar'],                  // thumbnail url for sender icon
 439                                                                 '$email'                => $importer['email'],                          // email address to send to
 440                                                                 '$url'                  => $datarray['author-link'],                    // full url for the site
 441                                                                 '$from'                 => $from,                                       // name of the person sending the message
 442                                                                 '$body'                 => $msg['textversion'],                         // text version of the message
 443                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 444                                                         ));
 445
 446                                                         // use the EmailNotification library to send the message
 447                                                         require_once("include/EmailNotification.php");
 448                                                         EmailNotification::sendTextHtmlEmail(
 449                                                                 $msg['notificationfromname'],
 450                                                                 t("Administrator") . '@' . $a->get_hostname(),
 451                                                                 t("noreply") . '@' . $a->get_hostname(),
 452                                                                 $importer['email'],
 453                                                                 sprintf( t('%s commented on an item at %s'), $from , $a->config['sitename']),
 454                                                                 $email_html_body_tpl,
 455                                                                 $email_text_body_tpl
 456                                                         );
 457                                                         pop_lang();
 458                                                 }
 459                                         }
 460                                         xml_status(0);
 461                                         // NOTREACHED
 462                                 }
 463                         }
 464                         else {
 465
 466                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 467
 468                                 $item_id  = $item->get_id();
 469                                 $datarray = get_atom_elements($feed,$item);
 470
 471                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 472                                         dbesc($item_id),
 473                                         intval($importer['importer_uid'])
 474                                 );
 475
 476                                 // Update content if 'updated' changes
 477
 478                                 if(count($r)) {
 479                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
 480                                                 $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 481                                                         dbesc($datarray['body']),
 482                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
 483                                                         dbesc($item_id),
 484                                                         intval($importer['importer_uid'])
 485                                                 );
 486                                         }
 487
 488                                         // update last-child if it changes
 489
 490                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 491                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
 492                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
 493                                                         dbesc(datetime_convert()),
 494                                                         dbesc($parent_uri),
 495                                                         intval($importer['importer_uid'])
 496                                                 );
 497                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 498                                                         intval($allow[0]['data']),
 499                                                         dbesc(datetime_convert()),
 500                                                         dbesc($item_id),
 501                                                         intval($importer['importer_uid'])
 502                                                 );
 503                                         }
 504                                         continue;
 505                                 }
 506
 507                                 $datarray['parent-uri'] = $parent_uri;
 508                                 $datarray['uid'] = $importer['importer_uid'];
 509                                 $datarray['contact-id'] = $importer['id'];
 510                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 511                                         $datarray['type'] = 'activity';
 512                                         $datarray['gravity'] = GRAVITY_LIKE;
 513                                 }
 514                                 $posted_id = item_store($datarray);
 515
 516                                 // find out if our user is involved in this conversation and wants to be notified.
 517
 518                                 if(($datarray['type'] != 'activity') && ($importer['notify-flags'] & NOTIFY_COMMENT)) {
 519
 520                                         $myconv = q("SELECT `author-link`, `author-avatar` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
 521                                                 dbesc($parent_uri),
 522                                                 intval($importer['importer_uid'])
 523                                         );
 524                                         if(count($myconv)) {
 525                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
 526                                                 foreach($myconv as $conv) {
 527                                                         if(! link_compare($conv['author-link'],$importer_url))
 528                                                                 continue;
 529
 530                                                         push_lang($importer['language']);
 531                                                         require_once('bbcode.php');
 532                                                         $from = stripslashes($datarray['author-name']);
 533
 534                                                         // name of the automated email sender
 535                                                         $msg['notificationfromname']    = stripslashes($datarray['author-name']);;
 536                                                         // noreply address to send from
 537                                                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 538
 539                                                         // text version
 540                                                         // process the message body to display properly in text mode
 541                                                         $msg['textversion']
 542                                                                 = html_entity_decode(strip_tags(bbcode(stripslashes($datarray['body']))), ENT_QUOTES, 'UTF-8');
 543
 544                                                         // html version
 545                                                         // process the message body to display properly in text mode
 546                                                         $msg['htmlversion']
 547                                                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$datarray['body']))));
 548
 549                                                         // load the template for private message notifications
 550                                                         $tpl = get_intltext_template('cmnt_received_html_body_eml.tpl');
 551                                                         $email_html_body_tpl = replace_macros($tpl,array(
 552                                                                 '$username'     => $importer['username'],
 553                                                                 '$sitename'             => $a->config['sitename'],                              // name of this site
 554                                                                 '$siteurl'              => $a->get_baseurl(),                                   // descriptive url of this site
 555                                                                 '$thumb'                => $datarray['author-avatar'],                          // thumbnail url for sender icon
 556                                                                 '$url'                  => $datarray['author-link'],                            // full url for the site
 557                                                                 '$from'                 => $from,                                               // name of the person sending the message
 558                                                                 '$body'                 => $msg['htmlversion'],                                 // html version of the message
 559                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 560                                                         ));
 561
 562                                                         // load the template for private message notifications
 563                                                         $tpl = get_intltext_template('cmnt_received_text_body_eml.tpl');
 564                                                         $email_text_body_tpl = replace_macros($tpl,array(
 565                                                                 '$username'     => $importer['username'],
 566                                                                 '$sitename'             => $a->config['sitename'],                              // name of this site
 567                                                                 '$siteurl'              => $a->get_baseurl(),                                   // descriptive url of this site
 568                                                                 '$thumb'                => $datarray['author-avatar'],                          // thumbnail url for sender icon
 569                                                                 '$url'                  => $datarray['author-link'],                            // full url for the site
 570                                                                 '$from'                 => $from,                                               // name of the person sending the message
 571                                                                 '$body'                 => $msg['textversion'],                                 // text version of the message
 572                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
 573                                                         ));
 574
 575                                                         // use the EmailNotification library to send the message
 576                                                         require_once("include/EmailNotification.php");
 577                                                         EmailNotification::sendTextHtmlEmail(
 578                                                                 $msg['notificationfromname'],
 579                                                                 t("Administrator@") . $a->get_hostname(),
 580                                                                 t("noreply") . '@' . $a->get_hostname(),
 581                                                                 $importer['email'],
 582                                                                 sprintf( t('%s commented on an item at %s'), $from , $a->config['sitename']),
 583                                                                 $email_html_body_tpl,
 584                                                                 $email_text_body_tpl
 585                                                         );
 586                                                         pop_lang();
 587                                                         break;
 588                                                 }
 589                                         }
 590                                 }
 591                                 continue;
 592                         }
 593                 }
 594
 595                 else {
 596
 597                         // Head post of a conversation. Have we seen it? If not, import it.
 598
 599
 600                         $item_id  = $item->get_id();
 601                         $datarray = get_atom_elements($feed,$item);
 602
 603                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
 604                                 $ev = bbtoevent($datarray['body']);
 605                                 if(x($ev,'desc') && x($ev,'start')) {
 606                                         $ev['cid'] = $importer['id'];
 607                                         $ev['uid'] = $importer['uid'];
 608                                         $ev['uri'] = $item_id;
 609
 610                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 611                                                 dbesc($item_id),
 612                                                 intval($importer['uid'])
 613                                         );
 614                                         if(count($r))
 615                                                 $ev['id'] = $r[0]['id'];
 616                                         $xyz = event_store($ev);
 617                                         continue;
 618                                 }
 619                         }
 620
 621                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 622                                 dbesc($item_id),
 623                                 intval($importer['importer_uid'])
 624                         );
 625
 626                         // Update content if 'updated' changes
 627
 628                         if(count($r)) {
 629                                 if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
 630                                         $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 631                                                 dbesc($datarray['body']),
 632                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
 633                                                 dbesc($item_id),
 634                                                 intval($importer['importer_uid'])
 635                                         );
 636                                 }
 637
 638                                 // update last-child if it changes
 639
 640                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 641                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 642                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 643                                                 intval($allow[0]['data']),
 644                                                 dbesc(datetime_convert()),
 645                                                 dbesc($item_id),
 646                                                 intval($importer['importer_uid'])
 647                                         );
 648                                 }
 649                                 continue;
 650                         }
 651
 652                         $datarray['parent-uri'] = $item_id;
 653                         $datarray['uid'] = $importer['importer_uid'];
 654                         $datarray['contact-id'] = $importer['id'];
 655                         $r = item_store($datarray);
 656                         continue;
 657                 }
 658         }
 659
 660         xml_status(0);
 661         // NOTREACHED
 662
 663 }
 664
 665
 666 function dfrn_notify_content(&$a) {
 667
 668         if(x($_GET,'dfrn_id')) {
 669
 670                 // initial communication from external contact, $direction is their direction.
 671                 // If this is a duplex communication, ours will be the opposite.
 672
 673                 $dfrn_id = notags(trim($_GET['dfrn_id']));
 674                 $dfrn_version = (float) $_GET['dfrn_version'];
 675
 676                 logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
 677
 678                 $direction = (-1);
 679                 if(strpos($dfrn_id,':') == 1) {
 680                         $direction = intval(substr($dfrn_id,0,1));
 681                         $dfrn_id = substr($dfrn_id,2);
 682                 }
 683
 684                 $hash = random_string();
 685
 686                 $status = 0;
 687
 688                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 689
 690                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 691                         VALUES( '%s', '%s', %d ) ",
 692                         dbesc($hash),
 693                         dbesc($dfrn_id),
 694                         intval(time() + 90 )
 695                 );
 696
 697                 logger('dfrn_notify: challenge=' . $hash );
 698
 699                 $sql_extra = '';
 700                 switch($direction) {
 701                         case (-1):
 702                                 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
 703                                 $my_id = $dfrn_id;
 704                                 break;
 705                         case 0:
 706                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 707                                 $my_id = '1:' . $dfrn_id;
 708                                 break;
 709                         case 1:
 710                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 711                                 $my_id = '0:' . $dfrn_id;
 712                                 break;
 713                         default:
 714                                 $status = 1;
 715                                 break; // NOTREACHED
 716                 }
 717
 718                 $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
 719                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
 720                                 dbesc($a->argv[1])
 721                 );
 722
 723                 if(! count($r))
 724                         $status = 1;
 725
 726                 $challenge = '';
 727                 $encrypted_id = '';
 728                 $id_str = $my_id . '.' . mt_rand(1000,9999);
 729
 730                 if((($r[0]['duplex']) && strlen($r[0]['prvkey'])) || (! strlen($r[0]['pubkey']))) {
 731                         openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 732                         openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 733                 }
 734                 else {
 735                         openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
 736                         openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
 737                 }
 738
 739                 $challenge    = bin2hex($challenge);
 740                 $encrypted_id = bin2hex($encrypted_id);
 741
 742                 $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 743
 744                 $rino_enable = get_config('system','rino_encrypt');
 745
 746                 if(! $rino_enable)
 747                         $rino = 0;
 748
 749
 750                 header("Content-type: text/xml");
 751
 752                 echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
 753                         . '<dfrn_notify>' . "\r\n"
 754                         . "\t" . '<status>' . $status . '</status>' . "\r\n"
 755                         . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
 756                         . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
 757                         . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
 758                         . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
 759                         . '</dfrn_notify>' . "\r\n" ;
 760
 761                 killme();
 762         }
 763
 764 }