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