mod/dfrn_notify.php

   1 <?php
   2
   3 require_once('simplepie/simplepie.inc');
   4 require_once('include/items.php');
   5 function dfrn_notify_post(&$a) {
   6
   7         $dfrn_id      = ((x($_POST,'dfrn_id'))      ? notags(trim($_POST['dfrn_id']))   : '');
   8         $dfrn_version = ((x($_POST,'dfrn_version')) ? (float) $_POST['dfrn_version']    : 2.0);
   9         $challenge    = ((x($_POST,'challenge'))    ? notags(trim($_POST['challenge'])) : '');
  10         $data         = ((x($_POST,'data'))         ? $_POST['data']                    : '');
  11         $key          = ((x($_POST,'key'))          ? $_POST['key']                     : '');
  12         $dissolve     = ((x($_POST,'dissolve'))     ? intval($_POST['dissolve'])        :  0);
  13         $perm         = ((x($_POST,'perm'))         ? notags(trim($_POST['perm']))      : 'r');
  14
  15         $writable = (-1);
  16         if($dfrn_version >= 2.21) {
  17                 $writable = (($perm === 'rw') ? 1 : 0);
  18         }
  19
  20         $direction = (-1);
  21         if(strpos($dfrn_id,':') == 1) {
  22                 $direction = intval(substr($dfrn_id,0,1));
  23                 $dfrn_id = substr($dfrn_id,2);
  24         }
  25
  26         $r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  27                 dbesc($dfrn_id),
  28                 dbesc($challenge)
  29         );
  30         if(! count($r)) {
  31                 logger('dfrn_notify: could not match challenge to dfrn_id ' . $dfrn_id . ' challenge=' . $challenge);
  32                 xml_status(3);
  33         }
  34
  35         $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  36                 dbesc($dfrn_id),
  37                 dbesc($challenge)
  38         );
  39
  40         // find the local user who owns this relationship.
  41
  42         $sql_extra = '';
  43         switch($direction) {
  44                 case (-1):
  45                         $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
  46                         break;
  47                 case 0:
  48                         $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  49                         break;
  50                 case 1:
  51                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  52                         break;
  53                 default:
  54                         xml_status(3);
  55                         break; // NOTREACHED
  56         }
  57
  58
  59         $r = q("SELECT  `contact`.*, `contact`.`uid` AS `importer_uid`,
  60                                         `contact`.`pubkey` AS `cpubkey`,
  61                                         `contact`.`prvkey` AS `cprvkey`,
  62                                         `contact`.`thumb` AS `thumb`,
  63                                         `contact`.`url` as `url`,
  64                                         `contact`.`name` as `senderName`,
  65                                         `user`.*
  66                         FROM `contact`
  67                         LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  68                         WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0
  69                                 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
  70                 dbesc($a->argv[1])
  71         );
  72
  73         if(! count($r)) {
  74                 logger('dfrn_notify: contact not found for dfrn_id ' . $dfrn_id);
  75                 xml_status(3);
  76                 //NOTREACHED
  77         }
  78
  79         // $importer in this case contains the contact record for the remote contact joined with the user record of our user.
  80
  81         $importer = $r[0];
  82         foreach($importer as $key => $val) {
  83                 logger( "importer - key: " . $key . " val: " . $val);
  84         }
  85
  86         if(($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                         // name of the automated email sender
 192                         $msg['notificationfromname']    = t('Administrator');
 193                         // noreply address to send from
 194                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 195
 196                         // text version
 197                         // process the message body to display properly in text mode
 198                         //              1) substitute a \n character for the "\" then "n", so it behaves properly (it doesn't come in as a \n character)
 199                         //              2) remove escape slashes
 200                         //              3) decode any bbcode from the message editor
 201                         //              4) decode any encoded html tags
 202                         //              5) remove html tags
 203                         $msg['textversion']
 204                                 = strip_tags(html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r", "\\n"), "\n",$msg['body']))),ENT_QUOTES,'UTF-8'));
 205
 206                         // html version
 207                         // process the message body to display properly in text mode
 208                         //              1) substitute a <br /> tag for the "\" then "n", so it behaves properly (it doesn't come in as a \n character)
 209                         //              2) remove escape slashes
 210                         //              3) decode any bbcode from the message editor
 211                         //              4) decode any encoded html tags
 212                         $msg['htmlversion']
 213                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$msg['body']))));
 214
 215                         // load the template for private message notifications
 216                         $tpl = get_intltext_template('mail_received_html_body_eml.tpl');
 217                         $email_html_body_tpl = replace_macros($tpl,array(
 218                                 '$siteName'             => $a->config['sitename'],                      // name of this site
 219                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 220                                 '$thumb'                => $importer['thumb'],                          // thumbnail url for sender icon
 221                                 '$email'                => $importer['email'],                          // email address to send to
 222                                 '$url'                  => $importer['url'],                            // full url for the site
 223                                 '$from'                 => $msg['from-name'],                           // name of the person sending the message
 224                                 '$title'                => stripslashes($msg['title']),                 // subject of the message
 225                                 '$htmlversion'  => $msg['htmlversion'],                                 // html version of the message
 226                                 '$mimeboundary' => $msg['mimeboundary'],                                // mime message divider
 227                                 '$hostname'             => $a->get_hostname()                           // name of this host
 228                         ));
 229
 230                         // load the template for private message notifications
 231                         $tpl = get_intltext_template('mail_received_text_body_eml.tpl');
 232                         $email_text_body_tpl = replace_macros($tpl,array(
 233                                 '$siteName'             => $a->config['sitename'],                      // name of this site
 234                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 235                                 '$thumb'                => $importer['thumb'],                          // thumbnail url for sender icon
 236                                 '$email'                => $importer['email'],                          // email address to send to
 237                                 '$url'                  => $importer['url'],                            // full url for the site
 238                                 '$from'                 => $msg['from-name'],                           // name of the person sending the message
 239                                 '$title'                => stripslashes($msg['title']),                 // subject of the message
 240                                 '$textversion'  => $msg['textversion'],                                 // text version of the message
 241                                 '$mimeboundary' => $msg['mimeboundary'],                                // mime message divider
 242                                 '$hostname'             => $a->get_hostname()                           // name of this host
 243                         ));
 244
 245                         // use the EmailNotification library to send the message
 246                         require_once("include/EmailNotification.php");
 247                         EmailNotification::sendTextHtmlEmail(
 248                                 $msg['notificationfromname'],
 249                                 $msg['notificationfromemail'],
 250                                 $msg['notificationfromemail'],
 251                                 $importer['email'],
 252                                 t('New mail received at ') . $a->config['sitename'],
 253                                 $email_html_body_tpl,
 254                                 $email_text_body_tpl
 255                         );
 256                 }
 257                 xml_status(0);
 258                 // NOTREACHED
 259         }
 260
 261         logger('dfrn_notify: feed item count = ' . $feed->get_item_quantity());
 262
 263         // process any deleted entries
 264
 265         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
 266         if(is_array($del_entries) && count($del_entries)) {
 267                 foreach($del_entries as $dentry) {
 268                         $deleted = false;
 269                         if(isset($dentry['attribs']['']['ref'])) {
 270                                 $uri = $dentry['attribs']['']['ref'];
 271                                 $deleted = true;
 272                                 if(isset($dentry['attribs']['']['when'])) {
 273                                         $when = $dentry['attribs']['']['when'];
 274                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 275                                 }
 276                                 else
 277                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 278                         }
 279                         if($deleted) {
 280
 281                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `contact-id` = %d LIMIT 1",
 282                                         dbesc($uri),
 283                                         intval($importer['importer_uid']),
 284                                         intval($importer['id'])
 285                                 );
 286
 287                                 if(count($r)) {
 288                                         $item = $r[0];
 289
 290                                         if(! $item['deleted'])
 291                                                 logger('dfrn_notify: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
 292
 293                                         if($item['uri'] == $item['parent-uri']) {
 294                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 295                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
 296                                                         dbesc($when),
 297                                                         dbesc(datetime_convert()),
 298                                                         dbesc($item['uri']),
 299                                                         intval($importer['importer_uid'])
 300                                                 );
 301                                         }
 302                                         else {
 303                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 304                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 305                                                         dbesc($when),
 306                                                         dbesc(datetime_convert()),
 307                                                         dbesc($uri),
 308                                                         intval($importer['importer_uid'])
 309                                                 );
 310                                                 if($item['last-child']) {
 311                                                         // ensure that last-child is set in case the comment that had it just got wiped.
 312                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 313                                                                 dbesc(datetime_convert()),
 314                                                                 dbesc($item['parent-uri']),
 315                                                                 intval($item['uid'])
 316                                                         );
 317                                                         // who is the last child now?
 318                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 319                                                                 ORDER BY `created` DESC LIMIT 1",
 320                                                                         dbesc($item['parent-uri']),
 321                                                                         intval($importer['importer_uid'])
 322                                                         );
 323                                                         if(count($r)) {
 324                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 325                                                                         intval($r[0]['id'])
 326                                                                 );
 327                                                         }
 328                                                 }
 329                                         }
 330                                 }
 331                         }
 332                 }
 333         }
 334
 335
 336         foreach($feed->get_items() as $item) {
 337
 338                 $is_reply = false;
 339                 $item_id = $item->get_id();
 340                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
 341                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 342                         $is_reply = true;
 343                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 344                 }
 345
 346                 if($is_reply) {
 347                         if($feed->get_item_quantity() == 1) {
 348                                 logger('dfrn_notify: received remote comment');
 349                                 $is_like = false;
 350                                 // remote reply to our post. Import and then notify everybody else.
 351                                 $datarray = get_atom_elements($feed,$item);
 352                                 $datarray['type'] = 'remote-comment';
 353                                 $datarray['wall'] = 1;
 354                                 $datarray['parent-uri'] = $parent_uri;
 355                                 $datarray['uid'] = $importer['importer_uid'];
 356                                 $datarray['contact-id'] = $importer['id'];
 357                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 358                                         $is_like = true;
 359                                         $datarray['type'] = 'activity';
 360                                         $datarray['gravity'] = GRAVITY_LIKE;
 361                                         $datarray['last-child'] = 0;
 362                                 }
 363                                 $posted_id = item_store($datarray);
 364                                 $parent = 0;
 365
 366                                 if($posted_id) {
 367                                         $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 368                                                 intval($posted_id),
 369                                                 intval($importer['importer_uid'])
 370                                         );
 371                                         if(count($r))
 372                                                 $parent = $r[0]['parent'];
 373
 374                                         if(! $is_like) {
 375                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
 376                                                         dbesc(datetime_convert()),
 377                                                         intval($importer['importer_uid']),
 378                                                         intval($r[0]['parent'])
 379                                                 );
 380
 381                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 382                                                         dbesc(datetime_convert()),
 383                                                         intval($importer['importer_uid']),
 384                                                         intval($posted_id)
 385                                                 );
 386                                         }
 387
 388                                         if($posted_id && $parent) {
 389
 390                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
 391
 392                                                 if((! $is_like) && ($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 393                                                         require_once('bbcode.php');
 394                                                         $from = stripslashes($datarray['author-name']);
 395
 396                                                         // name of the automated email sender
 397                                                         $msg['notificationfromname']    = stripslashes($datarray['author-name']);;
 398                                                         // noreply address to send from
 399                                                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 400
 401                                                         // text version
 402                                                         // process the message body to display properly in text mode
 403                                                         $msg['textversion']
 404                                                                 = html_entity_decode(strip_tags(bbcode(stripslashes($datarray['body']))), ENT_QUOTES, 'UTF-8');
 405
 406                                                         // html version
 407                                                         // process the message body to display properly in text mode
 408                                                         $msg['htmlversion']
 409                                                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$datarray['body']))));
 410
 411                                                         // load the template for private message notifications
 412                                                         $tpl = get_intltext_template('cmnt_received_html_body_eml.tpl');
 413                                                         $email_html_body_tpl = replace_macros($tpl,array(
 414                                                                 '$sitename'             => $a->config['sitename'],                      // name of this site
 415                                                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 416                                                                 '$thumb'                => $datarray['author-avatar'],                  // thumbnail url for sender icon
 417                                                                 '$email'                => $importer['email'],                          // email address to send to
 418                                                                 '$url'                  => $datarray['author-link'],                    // full url for the site
 419                                                                 '$from'                 => $from,                                       // name of the person sending the message
 420                                                                 '$body'                 => 'q1' .$msg['htmlversion'],                   // html version of the message
 421                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nick'] . '/' . $posted_id,
 422                                                         ));
 423
 424                                                         // load the template for private message notifications
 425                                                         $tpl = get_intltext_template('cmnt_received_text_body_eml.tpl');
 426                                                         $email_text_body_tpl = replace_macros($tpl,array(
 427                                                                 '$sitename'             => $a->config['sitename'],                      // name of this site
 428                                                                 '$siteurl'              => $a->get_baseurl(),                           // descriptive url of this site
 429                                                                 '$thumb'                => $datarray['author-avatar'],                  // thumbnail url for sender icon
 430                                                                 '$email'                => $importer['email'],                          // email address to send to
 431                                                                 '$url'                  => $datarray['author-link'],                    // full url for the site
 432                                                                 '$from'                 => $from,                                       // name of the person sending the message
 433                                                                 '$body'                 => $msg['textversion'],                         // text version of the message
 434                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nick'] . '/' . $posted_id,
 435                                                         ));
 436
 437                                                         // use the EmailNotification library to send the message
 438                                                         require_once("include/EmailNotification.php");
 439                                                         EmailNotification::sendTextHtmlEmail(
 440                                                                 $msg['notificationfromname'],
 441                                                                 t("Administrator@") . $a->get_hostname(),
 442                                                                 t("noreply") . '@' . $a->get_hostname(),
 443                                                                 $importer['email'],
 444                                                                 $from . t(" commented on an item at ") . $a->config['sitename'],
 445                                                                 $email_html_body_tpl,
 446                                                                 $email_text_body_tpl
 447                                                         );
 448
 449                                                 }
 450                                         }
 451                                         xml_status(0);
 452                                         // NOTREACHED
 453                                 }
 454                         }
 455                         else {
 456
 457                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 458
 459                                 $item_id  = $item->get_id();
 460                                 $datarray = get_atom_elements($feed,$item);
 461
 462                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 463                                         dbesc($item_id),
 464                                         intval($importer['importer_uid'])
 465                                 );
 466
 467                                 // Update content if 'updated' changes
 468
 469                                 if(count($r)) {
 470                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
 471                                                 $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 472                                                         dbesc($datarray['body']),
 473                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
 474                                                         dbesc($item_id),
 475                                                         intval($importer['importer_uid'])
 476                                                 );
 477                                         }
 478
 479                                         // update last-child if it changes
 480
 481                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 482                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
 483                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
 484                                                         dbesc(datetime_convert()),
 485                                                         dbesc($parent_uri),
 486                                                         intval($importer['importer_uid'])
 487                                                 );
 488                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 489                                                         intval($allow[0]['data']),
 490                                                         dbesc(datetime_convert()),
 491                                                         dbesc($item_id),
 492                                                         intval($importer['importer_uid'])
 493                                                 );
 494                                         }
 495                                         continue;
 496                                 }
 497
 498                                 $datarray['parent-uri'] = $parent_uri;
 499                                 $datarray['uid'] = $importer['importer_uid'];
 500                                 $datarray['contact-id'] = $importer['id'];
 501                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
 502                                         $datarray['type'] = 'activity';
 503                                         $datarray['gravity'] = GRAVITY_LIKE;
 504                                 }
 505                                 $r = item_store($datarray);
 506
 507                                 // find out if our user is involved in this conversation and wants to be notified.
 508
 509                                 if(($datarray['type'] != 'activity') && ($importer['notify-flags'] & NOTIFY_COMMENT)) {
 510
 511                                         $myconv = q("SELECT `author-link`, `author-avatar` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 ",
 512                                                 dbesc($parent_uri),
 513                                                 intval($importer['importer_uid'])
 514                                         );
 515                                         if(count($myconv)) {
 516                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
 517                                                 foreach($myconv as $conv) {
 518                                                         if(! link_compare($conv['author-link'],$importer_url))
 519                                                                 continue;
 520                                                         require_once('bbcode.php');
 521                                                         $from = stripslashes($datarray['author-name']);
 522
 523                                                         // name of the automated email sender
 524                                                         $msg['notificationfromname']    = stripslashes($datarray['author-name']);;
 525                                                         // noreply address to send from
 526                                                         $msg['notificationfromemail']   = t('noreply') . '@' . $a->get_hostname();
 527
 528                                                         // text version
 529                                                         // process the message body to display properly in text mode
 530                                                         $msg['textversion']
 531                                                                 = html_entity_decode(strip_tags(bbcode(stripslashes($datarray['body']))), ENT_QUOTES, 'UTF-8');
 532
 533                                                         // html version
 534                                                         // process the message body to display properly in text mode
 535                                                         $msg['htmlversion']
 536                                                                 = html_entity_decode(bbcode(stripslashes(str_replace(array("\\r\\n", "\\r","\\n\\n" ,"\\n"), "<br />\n",$datarray['body']))));
 537
 538                                                         // load the template for private message notifications
 539                                                         $tpl = get_intltext_template('cmnt_received_html_body_eml.tpl');
 540                                                         $email_html_body_tpl = replace_macros($tpl,array(
 541                                                                 '$sitename'             => $a->config['sitename'],                              // name of this site
 542                                                                 '$siteurl'              => $a->get_baseurl(),                                   // descriptive url of this site
 543                                                                 '$thumb'                => $conv['author-avatar'],                              // thumbnail url for sender icon
 544                                                                 '$url'                  => $conv['author-link'],                                // full url for the site
 545                                                                 '$from'                 => $from,                                               // name of the person sending the message
 546                                                                 '$body'                 => $msg['htmlversion'],                                 // html version of the message
 547                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nick'] . '/' . $posted_id,
 548                                                         ));
 549
 550                                                         // load the template for private message notifications
 551                                                         $tpl = get_intltext_template('cmnt_received_text_body_eml.tpl');
 552                                                         $email_text_body_tpl = replace_macros($tpl,array(
 553                                                                 '$sitename'             => $a->config['sitename'],                              // name of this site
 554                                                                 '$siteurl'              => $a->get_baseurl(),                                   // descriptive url of this site
 555                                                                 '$thumb'                => $conv['author-avatar'],                              // thumbnail url for sender icon
 556                                                                 '$url'                  => $conv['author-link'],                                // full url for the site
 557                                                                 '$from'                 => $from,                                               // name of the person sending the message
 558                                                                 '$body'                 => $msg['textversion'],                                 // text version of the message
 559                                                                 '$display'              => $a->get_baseurl() . '/display/' . $importer['nick'] . '/' . $posted_id,
 560                                                         ));
 561
 562                                                         // use the EmailNotification library to send the message
 563                                                         require_once("include/EmailNotification.php");
 564                                                         EmailNotification::sendTextHtmlEmail(
 565                                                                 $msg['notificationfromname'],
 566                                                                 t("Administrator@") . $a->get_hostname(),
 567                                                                 t("noreply") . '@' . $a->get_hostname(),
 568                                                                 $importer['email'],
 569                                                                 $from . t(" commented on an item at ") . $a->config['sitename'],
 570                                                                 $email_html_body_tpl,
 571                                                                 $email_text_body_tpl
 572                                                         );
 573
 574                                                         break;
 575                                                 }
 576                                         }
 577                                 }
 578                                 continue;
 579                         }
 580                 }
 581
 582                 else {
 583
 584                         // Head post of a conversation. Have we seen it? If not, import it.
 585
 586
 587                         $item_id  = $item->get_id();
 588                         $datarray = get_atom_elements($feed,$item);
 589
 590                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 591                                 dbesc($item_id),
 592                                 intval($importer['importer_uid'])
 593                         );
 594
 595                         // Update content if 'updated' changes
 596
 597                         if(count($r)) {
 598                                 if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
 599                                         $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 600                                                 dbesc($datarray['body']),
 601                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
 602                                                 dbesc($item_id),
 603                                                 intval($importer['importer_uid'])
 604                                         );
 605                                 }
 606
 607                                 // update last-child if it changes
 608
 609                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 610                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 611                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 612                                                 intval($allow[0]['data']),
 613                                                 dbesc(datetime_convert()),
 614                                                 dbesc($item_id),
 615                                                 intval($importer['importer_uid'])
 616                                         );
 617                                 }
 618                                 continue;
 619                         }
 620
 621                         $datarray['parent-uri'] = $item_id;
 622                         $datarray['uid'] = $importer['importer_uid'];
 623                         $datarray['contact-id'] = $importer['id'];
 624                         $r = item_store($datarray);
 625                         continue;
 626                 }
 627         }
 628
 629         xml_status(0);
 630         // NOTREACHED
 631
 632 }
 633
 634
 635 function dfrn_notify_content(&$a) {
 636
 637         if(x($_GET,'dfrn_id')) {
 638
 639                 // initial communication from external contact, $direction is their direction.
 640                 // If this is a duplex communication, ours will be the opposite.
 641
 642                 $dfrn_id = notags(trim($_GET['dfrn_id']));
 643                 $dfrn_version = (float) $_GET['dfrn_version'];
 644
 645                 logger('dfrn_notify: new notification dfrn_id=' . $dfrn_id);
 646
 647                 $direction = (-1);
 648                 if(strpos($dfrn_id,':') == 1) {
 649                         $direction = intval(substr($dfrn_id,0,1));
 650                         $dfrn_id = substr($dfrn_id,2);
 651                 }
 652
 653                 $hash = random_string();
 654
 655                 $status = 0;
 656
 657                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 658
 659                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 660                         VALUES( '%s', '%s', %d ) ",
 661                         dbesc($hash),
 662                         dbesc($dfrn_id),
 663                         intval(time() + 90 )
 664                 );
 665
 666                 logger('dfrn_notify: challenge=' . $hash );
 667
 668                 $sql_extra = '';
 669                 switch($direction) {
 670                         case (-1):
 671                                 $sql_extra = sprintf(" AND ( `issued-id` = '%s' OR `dfrn-id` = '%s' ) ", dbesc($dfrn_id), dbesc($dfrn_id));
 672                                 $my_id = $dfrn_id;
 673                                 break;
 674                         case 0:
 675                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 676                                 $my_id = '1:' . $dfrn_id;
 677                                 break;
 678                         case 1:
 679                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 680                                 $my_id = '0:' . $dfrn_id;
 681                                 break;
 682                         default:
 683                                 $status = 1;
 684                                 break; // NOTREACHED
 685                 }
 686
 687                 $r = q("SELECT `contact`.*, `user`.`nickname` FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
 688                                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 AND `user`.`nickname` = '%s' $sql_extra LIMIT 1",
 689                                 dbesc($a->argv[1])
 690                 );
 691
 692                 if(! count($r))
 693                         $status = 1;
 694
 695                 $challenge = '';
 696                 $encrypted_id = '';
 697                 $id_str = $my_id . '.' . mt_rand(1000,9999);
 698
 699                 if((($r[0]['duplex']) && strlen($r[0]['prvkey'])) || (! strlen($r[0]['pubkey']))) {
 700                         openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 701                         openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 702                 }
 703                 else {
 704                         openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
 705                         openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
 706                 }
 707
 708                 $challenge    = bin2hex($challenge);
 709                 $encrypted_id = bin2hex($encrypted_id);
 710
 711                 $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 712
 713                 $rino_enable = get_config('system','rino_encrypt');
 714
 715                 if(! $rino_enable)
 716                         $rino = 0;
 717
 718
 719                 header("Content-type: text/xml");
 720
 721                 echo '<?xml version="1.0" encoding="UTF-8"?>' . "\r\n"
 722                         . '<dfrn_notify>' . "\r\n"
 723                         . "\t" . '<status>' . $status . '</status>' . "\r\n"
 724                         . "\t" . '<dfrn_version>' . DFRN_PROTOCOL_VERSION . '</dfrn_version>' . "\r\n"
 725                         . "\t" . '<rino>' . $rino . '</rino>' . "\r\n"
 726                         . "\t" . '<dfrn_id>' . $encrypted_id . '</dfrn_id>' . "\r\n"
 727                         . "\t" . '<challenge>' . $challenge . '</challenge>' . "\r\n"
 728                         . '</dfrn_notify>' . "\r\n" ;
 729
 730                 killme();
 731         }
 732
 733 }