mod/dfrn_notify.php

   1 <?php
   2
   3 require_once('simplepie/simplepie.inc');
   4 require_once('include/items.php');
   5
   6
   7 function dfrn_notify_post(&$a) {
   8
   9         $dfrn_id = notags(trim($_POST['dfrn_id']));
  10         $challenge = notags(trim($_POST['challenge']));
  11         $data = $_POST['data'];
  12
  13         $direction = (-1);
  14         if(strpos($dfrn_id,':') == 1) {
  15                 $direction = intval(substr($dfrn_id,0,1));
  16                 $dfrn_id = substr($dfrn_id,2);
  17         }
  18
  19         $r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  20                 dbesc($dfrn_id),
  21                 dbesc($challenge)
  22         );
  23         if(! count($r))
  24                 xml_status(3);
  25
  26         $r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
  27                 dbesc($dfrn_id),
  28                 dbesc($challenge)
  29         );
  30
  31         // find the local user who owns this relationship.
  32
  33         $sql_extra = '';
  34         switch($direction) {
  35                 case (-1):
  36                         $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
  37                         break;
  38                 case 0:
  39                         $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  40                         break;
  41                 case 1:
  42                         $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  43                         break;
  44                 default:
  45                         xml_status(3);
  46                         break; // NOTREACHED
  47         }
  48
  49
  50         $r = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`, `user`.* FROM `contact`
  51                 LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid`
  52                 WHERE `contact`.`blocked` = 0 AND `contact`.`pending` = 0 $sql_extra LIMIT 1"
  53         );
  54
  55         if(! count($r)) {
  56                 xml_status(3);
  57                 return; //NOTREACHED
  58         }
  59
  60         $importer = $r[0];
  61
  62         $feed = new SimplePie();
  63         $feed->set_raw_data($data);
  64         $feed->enable_order_by_date(false);
  65         $feed->init();
  66
  67         $ismail = false;
  68
  69         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
  70         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
  71
  72                 if($importer['readonly']) {
  73                         // We aren't receiving email from this person. But we will quietly ignore them
  74                         // rather than a blatant "go away" message.
  75                         xml_status(0);
  76                         return; //NOTREACHED
  77                 }
  78
  79                 $ismail = true;
  80                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
  81
  82                 $msg = array();
  83                 $msg['uid'] = $importer['importer_uid'];
  84                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
  85                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
  86                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
  87                 $msg['contact-id'] = $importer['id'];
  88                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
  89                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
  90                 $msg['delivered'] = 1;
  91                 $msg['seen'] = 0;
  92                 $msg['replied'] = 0;
  93                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
  94                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
  95                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
  96
  97                 dbesc_array($msg);
  98
  99                 $r = q("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
 100                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
 101
 102                 // send email notification if requested.
 103
 104                 require_once('bbcode.php');
 105                 if($importer['notify-flags'] & NOTIFY_MAIL) {
 106                         $tpl = file_get_contents('view/mail_received_eml.tpl');
 107                         $email_tpl = replace_macros($tpl, array(
 108                                 '$sitename' => $a->config['sitename'],
 109                                 '$siteurl' =>  $a->get_baseurl(),
 110                                 '$username' => $importer['username'],
 111                                 '$email' => $importer['email'],
 112                                 '$from' => $msg['from-name'],
 113                                 '$title' => $msg['title'],
 114                                 '$body' => strip_tags(bbcode($msg['body']))
 115                         ));
 116
 117                         $res = mail($importer['email'], t('New mail received at ') . $a->config['sitename'],
 118                                 $email_tpl, 'From: ' . t('Administrator') . '@' . $a->get_hostname() );
 119                 }
 120                 xml_status(0);
 121                 return; // NOTREACHED
 122         }
 123
 124         if($importer['readonly']) {
 125
 126                 xml_status(0);
 127                 return; // NOTREACHED
 128         }
 129
 130         foreach($feed->get_items() as $item) {
 131
 132                 $deleted = false;
 133
 134                 $rawdelete = $item->get_item_tags( NAMESPACE_TOMB , 'deleted-entry');
 135                 if(isset($rawdelete[0]['attribs']['']['ref'])) {
 136                         $uri = $rawthread[0]['attribs']['']['ref'];
 137                         $deleted = true;
 138                         if(isset($rawdelete[0]['attribs']['']['when'])) {
 139                                 $when = $rawthread[0]['attribs']['']['when'];
 140                                 $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 141                         }
 142                         else
 143                                 $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 144                 }
 145                 if($deleted) {
 146                         $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 147                                 dbesc($uri),
 148                                 intval($importer['importer_uid'])
 149                         );
 150                         if(count($r)) {
 151                                 $item = $r[0];
 152                                 if($item['uri'] == $item['parent-uri']) {
 153                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 154                                                 WHERE `parent-uri` = '%s' AND `uid` = %d",
 155                                                 dbesc($when),
 156                                                 dbesc(datetime_convert()),
 157                                                 dbesc($item['uri']),
 158                                                 intval($importer['importer_uid'])
 159                                         );
 160                                 }
 161                                 else {
 162                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
 163                                                 WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 164                                                 dbesc($when),
 165                                                 dbesc(datetime_convert()),
 166                                                 dbesc($uri),
 167                                                 intval($importer['importer_uid'])
 168                                         );
 169                                         if($item['last-child']) {
 170                                                 // ensure that last-child is set in case the comment that had it just got wiped.
 171                                                 $q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
 172                                                         dbesc(datetime_convert()),
 173                                                         dbesc($item['parent-uri']),
 174                                                         intval($item['uid'])
 175                                                 );
 176                                                 // who is the last child now?
 177                                                 $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
 178                                                         ORDER BY `edited` DESC LIMIT 1",
 179                                                                 dbesc($item['parent-uri']),
 180                                                                 intval($importer['importer_uid'])
 181                                                 );
 182                                                 if(count($r)) {
 183                                                         q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
 184                                                                 intval($r[0]['id'])
 185                                                         );
 186                                                 }
 187                                         }
 188                                 }
 189                         }
 190                         continue;
 191                 }
 192
 193                 $is_reply = false;
 194                 $item_id = $item->get_id();
 195                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
 196                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 197                         $is_reply = true;
 198                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 199                 }
 200
 201
 202                 if($is_reply) {
 203                         if($feed->get_item_quantity() == 1) {
 204                                 // remote reply to our post. Import and then notify everybody else.
 205                                 $datarray = get_atom_elements($item);
 206                                 $datarray['type'] = 'remote-comment';
 207                                 $datarray['wall'] = 1;
 208                                 $datarray['parent-uri'] = $parent_uri;
 209                                 $datarray['uid'] = $importer['importer_uid'];
 210                                 $datarray['contact-id'] = $importer['id'];
 211                                 $posted_id = item_store($datarray);
 212
 213                                 if($posted_id) {
 214                                         $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 215                                                 intval($posted_id),
 216                                                 intval($importer['importer_uid'])
 217                                         );
 218                                         if(count($r)) {
 219                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
 220                                                         dbesc(datetime_convert()),
 221                                                         intval($importer['importer_uid']),
 222                                                         intval($r[0]['parent'])
 223                                                 );
 224                                         }
 225                                         $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 226                                                         dbesc(datetime_convert()),
 227                                                         intval($importer['importer_uid']),
 228                                                         intval($posted_id)
 229                                         );
 230
 231                                         $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 232
 233                                         proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"comment-import\" \"$posted_id\" &",
 234                                                 array(),$foo));
 235
 236                                         if(($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 237                                                 require_once('bbcode.php');
 238                                                 $from = stripslashes($datarray['author-name']);
 239                                                 $tpl = file_get_contents('view/cmnt_received_eml.tpl');
 240                                                 $email_tpl = replace_macros($tpl, array(
 241                                                         '$sitename' => $a->config['sitename'],
 242                                                         '$siteurl' =>  $a->get_baseurl(),
 243                                                         '$username' => $importer['username'],
 244                                                         '$email' => $importer['email'],
 245                                                         '$from' => $from,
 246                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 247                                                 ));
 248
 249                                                 $res = mail($importer['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
 250                                                         $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 251                                         }
 252                                 }
 253                                 xml_status(0);
 254                                 return;
 255
 256                         }
 257                         else {
 258                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 259
 260                                 $item_id = $item->get_id();
 261
 262                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 263                                         dbesc($item_id),
 264                                         intval($importer['importer_uid'])
 265                                 );
 266                                 // FIXME update content if 'updated' changes
 267                                 if(count($r)) {
 268                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 269                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 270                                                 $r = q("UPDATE `item` SET `last-child` = %d, `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 271                                                         intval($allow[0]['data']),
 272                                                         dbesc(datetime_convert()),
 273                                                         dbesc($item_id),
 274                                                         intval($importer['importer_uid'])
 275                                                 );
 276                                         }
 277                                         continue;
 278                                 }
 279                                 $datarray = get_atom_elements($item);
 280                                 $datarray['parent-uri'] = $parent_uri;
 281                                 $datarray['uid'] = $importer['importer_uid'];
 282                                 $datarray['contact-id'] = $importer['id'];
 283                                 $r = item_store($datarray);
 284
 285                                 // find out if our user is involved in this conversation and wants to be notified.
 286
 287                                 if($importer['notify-flags'] & NOTIFY_COMMENT) {
 288
 289                                         $myconv = q("SELECT `author-link` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d",
 290                                                 dbesc($parent_uri),
 291                                                 intval($importer['importer_uid'])
 292                                         );
 293                                         if(count($myconv)) {
 294                                                 foreach($myconv as $conv) {
 295                                                         if($conv['author-link'] != $importer['url'])
 296                                                                 continue;
 297                                                         require_once('bbcode.php');
 298                                                         $from = stripslashes($datarray['author-name']);
 299                                                         $tpl = file_get_contents('view/cmnt_received_eml.tpl');
 300                                                         $email_tpl = replace_macros($tpl, array(
 301                                                                 '$sitename' => $a->config['sitename'],
 302                                                                 '$siteurl' =>  $a->get_baseurl(),
 303                                                                 '$username' => $importer['username'],
 304                                                                 '$email' => $importer['email'],
 305                                                                 '$from' => $from,
 306                                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 307                                                         ));
 308
 309                                                         $res = mail($importer['email'], $from . t(" commented on an item at ")
 310                                                                 . $a->config['sitename'],
 311                                                                 $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 312                                                         break;
 313                                                 }
 314                                         }
 315                                 }
 316                                 continue;
 317                         }
 318                 }
 319                 else {
 320                         // Head post of a conversation. Have we seen it? If not, import it.
 321
 322                         $item_id = $item->get_id();
 323                         $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 324                                 dbesc($item_id),
 325                                 intval($importer['importer_uid'])
 326                         );
 327                         if(count($r)) {
 328                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 329                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 330                                         $r = q("UPDATE `item` SET `last-child` = %d, `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 331                                                 intval($allow[0]['data']),
 332                                                 dbesc(datetime_convert()),
 333                                                 dbesc($item_id),
 334                                                 intval($importer['importer_uid'])
 335                                         );
 336                                 }
 337                                 continue;
 338                         }
 339
 340
 341                         $datarray = get_atom_elements($item);
 342                         $datarray['parent-uri'] = $item_id;
 343                         $datarray['uid'] = $importer['importer_uid'];
 344                         $datarray['contact-id'] = $importer['id'];
 345                         $r = item_store($datarray);
 346                         continue;
 347
 348                 }
 349
 350         }
 351
 352         xml_status(0);
 353         killme();
 354
 355 }
 356
 357
 358 function dfrn_notify_content(&$a) {
 359
 360         if(x($_GET,'dfrn_id')) {
 361
 362                 // initial communication from external contact, $direction is their direction.
 363                 // If this is a duplex communication, ours will be the opposite.
 364
 365                 $dfrn_id = notags(trim($_GET['dfrn_id']));
 366
 367                 $direction = (-1);
 368                 if(strpos($dfrn_id,':') == 1) {
 369                         $direction = intval(substr($dfrn_id,0,1));
 370                         $dfrn_id = substr($dfrn_id,2);
 371                 }
 372
 373                 $hash = random_string();
 374
 375                 $status = 0;
 376
 377                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 378
 379                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 380                         VALUES( '%s', '%s', '%s') ",
 381                         dbesc($hash),
 382                         dbesc($dfrn_id),
 383                         intval(time() + 60 )
 384                 );
 385
 386
 387                 $sql_extra = '';
 388                 switch($direction) {
 389                         case (-1):
 390                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
 391                                 $my_id = $dfrn_id;
 392                                 break;
 393                         case 0:
 394                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 395                                 $my_id = '1:' . $dfrn_id;
 396                                 break;
 397                         case 1:
 398                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
 399                                 $my_id = '0:' . $dfrn_id;
 400                                 break;
 401                         default:
 402                                 $status = 1;
 403                                 break; // NOTREACHED
 404                 }
 405
 406
 407
 408                 $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 $sql_extra LIMIT 1");
 409
 410                 if(! count($r))
 411                         $status = 1;
 412
 413                 $challenge = '';
 414                 $encrypted_id = '';
 415                 $id_str = $my_id . '.' . mt_rand(1000,9999);
 416
 417                 if(($r[0]['duplex']) && strlen($r[0]['pubkey'])) {
 418                         openssl_public_encrypt($hash,$challenge,$r[0]['pubkey']);
 419                         openssl_public_encrypt($id_str,$encrypted_id,$r[0]['pubkey']);
 420                 }
 421                 else {
 422                         openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 423                         openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 424                 }
 425
 426                 $challenge    = bin2hex($challenge);
 427                 $encrypted_id = bin2hex($encrypted_id);
 428
 429                 echo '<?xml version="1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_version>2.0</dfrn_version><dfrn_id>' . $encrypted_id . '</dfrn_id>' . '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
 430                 session_write_close();
 431                 exit;
 432
 433         }
 434
 435 }