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         $r = q("SELECT `contact`.*, `contact`.`uid` AS `importer_uid`, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` WHERE `issued-id` = '%s' LIMIT 1",
  27                 dbesc($dfrn_id)
  28         );
  29         if(! count($r)) {
  30                 xml_status(3);
  31                 return; //NOTREACHED
  32         }
  33
  34         // We aren't really interested in anything this person has to say. But be polite and make them
  35         // think we're listening intently by acknowledging receipt of their communications - which we quietly ignore.
  36
  37         if($r[0]['readonly']) {
  38                 xml_status(0);
  39                 return; //NOTREACHED
  40         }
  41
  42         $importer = $r[0];
  43
  44         $feed = new SimplePie();
  45         $feed->set_raw_data($data);
  46         $feed->enable_order_by_date(false);
  47         $feed->init();
  48
  49         $ismail = false;
  50
  51         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
  52         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
  53                 $ismail = true;
  54                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
  55
  56                 $msg = array();
  57                 $msg['uid'] = $importer['importer_uid'];
  58                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
  59                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
  60                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
  61                 $msg['contact-id'] = $importer['id'];
  62                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
  63                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
  64                 $msg['delivered'] = 1;
  65                 $msg['seen'] = 0;
  66                 $msg['replied'] = 0;
  67                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
  68                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
  69                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
  70
  71                 dbesc_array($msg);
  72
  73                 $r = q("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
  74                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
  75
  76                 // send email notification if requested.
  77
  78                 require_once('bbcode.php');
  79                 if($importer['notify-flags'] & NOTIFY_MAIL) {
  80                         $tpl = file_get_contents('view/mail_received_eml.tpl');
  81                         $email_tpl = replace_macros($tpl, array(
  82                                 '$sitename' => $a->config['sitename'],
  83                                 '$siteurl' =>  $a->get_baseurl(),
  84                                 '$username' => $importer['username'],
  85                                 '$email' => $importer['email'],
  86                                 '$from' => $msg['from-name'],
  87                                 '$title' => $msg['title'],
  88                                 '$body' => strip_tags(bbcode($msg['body']))
  89                         ));
  90
  91                         $res = mail($importer['email'], t("New mail received at ") . $a->config['sitename'],
  92                                 $email_tpl,t("From: Administrator@") . $a->get_hostname() );
  93                 }
  94                 xml_status(0);
  95                 return; // NOTREACHED
  96         }
  97
  98         foreach($feed->get_items() as $item) {
  99
 100                 $deleted = false;
 101
 102                 $rawdelete = $item->get_item_tags("http://purl.org/atompub/tombstones/1.0", 'deleted-entry');
 103                 if(isset($rawdelete[0]['attribs']['']['ref'])) {
 104                         $uri = $rawthread[0]['attribs']['']['ref'];
 105                         $deleted = true;
 106                         if(isset($rawdelete[0]['attribs']['']['when'])) {
 107                                 $when = $rawthread[0]['attribs']['']['when'];
 108                                 $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
 109                         }
 110                         else
 111                                 $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
 112                 }
 113                 if($deleted) {
 114                         $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 115                                 dbesc($uri),
 116                                 intval($importer['importer_uid'])
 117                         );
 118                         if(count($r)) {
 119                                 if($r[0]['uri'] == $r[0]['parent-uri']) {
 120                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
 121                                                 WHERE `parent-uri` = '%s'",
 122                                                 dbesc($when),
 123                                                 dbesc($r[0]['uri'])
 124                                         );
 125                                 }
 126                                 else {
 127                                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s'
 128                                                 WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 129                                                 dbesc($when),
 130                                                 dbesc($uri),
 131                                                 intval($importer['importer_uid'])
 132                                         );
 133                                 }
 134                         }
 135                         continue;
 136                 }
 137
 138                 $is_reply = false;
 139                 $item_id = $item->get_id();
 140                 $rawthread = $item->get_item_tags("http://purl.org/syndication/thread/1.0",'in-reply-to');
 141                 if(isset($rawthread[0]['attribs']['']['ref'])) {
 142                         $is_reply = true;
 143                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
 144                 }
 145
 146
 147                 if($is_reply) {
 148                         if($feed->get_item_quantity() == 1) {
 149                                 // remote reply to our post. Import and then notify everybody else.
 150                                 $datarray = get_atom_elements($item);
 151                                 $datarray['type'] = 'remote-comment';
 152                                 $datarray['parent-uri'] = $parent_uri;
 153                                 $datarray['uid'] = $importer['importer_uid'];
 154                                 $datarray['contact-id'] = $importer['id'];
 155                                 $posted_id = post_remote($a,$datarray);
 156
 157                                 $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
 158                                         intval($posted_id),
 159                                         intval($importer['importer_uid'])
 160                                 );
 161                                 if(count($r)) {
 162                                         $r1 = q("UPDATE `item` SET `last-child` = 0 WHERE `uid` = %d AND `parent` = %d",
 163                                                 intval($importer['importer_uid']),
 164                                                 intval($r[0]['parent'])
 165                                         );
 166                                 }
 167                                 $r2 = q("UPDATE `item` SET `last-child` = 1 WHERE `uid` = %d AND `id` = %d LIMIT 1",
 168                                                 intval($importer['importer_uid']),
 169                                                 intval($posted_id)
 170                                 );
 171
 172                                 $url = $a->get_baseurl();
 173                                 $php_path = ((strlen($a->config['php_path'])) ? $a->config['php_path'] : 'php');
 174
 175                                 proc_close(proc_open("\"$php_path\" \"include/notifier.php\" \"$url\" \"comment-import\" \"$posted_id\" &",
 176                                         array(),$foo));
 177
 178                                 if(($importer['notify-flags'] & NOTIFY_COMMENT) && (! $importer['self'])) {
 179                                         require_once('bbcode.php');
 180                                         $from = stripslashes($datarray['author-name']);
 181                                         $tpl = file_get_contents('view/cmnt_received_eml.tpl');
 182                                         $email_tpl = replace_macros($tpl, array(
 183                                                 '$sitename' => $a->config['sitename'],
 184                                                 '$siteurl' =>  $a->get_baseurl(),
 185                                                 '$username' => $importer['username'],
 186                                                 '$email' => $importer['email'],
 187                                                 '$from' => $from,
 188                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 189                                         ));
 190
 191                                         $res = mail($importer['email'], $from . t(" commented on your item at ") . $a->config['sitename'],
 192                                                 $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 193                                 }
 194                                 xml_status(0);
 195                                 return;
 196
 197                         }
 198                         else {
 199                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
 200
 201                                 $item_id = $item->get_id();
 202
 203                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 204                                         dbesc($item_id),
 205                                         intval($importer['importer_uid'])
 206                                 );
 207                                 // FIXME update content if 'updated' changes
 208                                 if(count($r)) {
 209                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 210                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 211                                                 $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 212                                                         intval($allow[0]['data']),
 213                                                         dbesc($item_id),
 214                                                         intval($importer['importer_uid'])
 215                                                 );
 216                                         }
 217                                         continue;
 218                                 }
 219                                 $datarray = get_atom_elements($item);
 220                                 $datarray['parent-uri'] = $parent_uri;
 221                                 $datarray['uid'] = $importer['importer_uid'];
 222                                 $datarray['contact-id'] = $importer['id'];
 223                                 $r = post_remote($a,$datarray);
 224
 225                                 // find out if our user is involved in this conversation and wants to be notified.
 226
 227                                 if($importer['notify-flags'] & NOTIFY_COMMENT) {
 228
 229                                         $myconv = q("SELECT `author-link` FROM `item` WHERE `parent-uri` = '%s'",
 230                                                 dbesc($parent_uri)
 231                                         );
 232                                         if(count($myconv)) {
 233                                                 foreach($myconv as $conv) {
 234                                                         if($conv['author-link'] != $importer['url'])
 235                                                                 continue;
 236                                                         require_once('bbcode.php');
 237                                                         $from = stripslashes($datarray['author-name']);
 238                                                         $tpl = file_get_contents('view/cmnt_received_eml.tpl');
 239                                                         $email_tpl = replace_macros($tpl, array(
 240                                                                 '$sitename' => $a->config['sitename'],
 241                                                                 '$siteurl' =>  $a->get_baseurl(),
 242                                                                 '$username' => $importer['username'],
 243                                                                 '$email' => $importer['email'],
 244                                                                 '$from' => $from,
 245                                                                 '$body' => strip_tags(bbcode(stripslashes($datarray['body'])))
 246                                                         ));
 247
 248                                                         $res = mail($importer['email'], $from . t(" commented on an item at ")
 249                                                                 . $a->config['sitename'],
 250                                                                 $email_tpl,t("From: Administrator@") . $a->get_hostname() );
 251                                                         break;
 252                                                 }
 253                                         }
 254                                 }
 255                                 continue;
 256                         }
 257                 }
 258                 else {
 259                         // Head post of a conversation. Have we seen it? If not, import it.
 260
 261                         $item_id = $item->get_id();
 262                         $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 263                                 dbesc($item_id),
 264                                 intval($importer['importer_uid'])
 265                         );
 266                         if(count($r)) {
 267                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
 268                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
 269                                         $r = q("UPDATE `item` SET `last-child` = %d WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 270                                                 intval($allow[0]['data']),
 271                                                 dbesc($item_id),
 272                                                 intval($importer['importer_uid'])
 273                                         );
 274                                 }
 275                                 continue;
 276                         }
 277
 278
 279                         $datarray = get_atom_elements($item);
 280                         $datarray['parent-uri'] = $item_id;
 281                         $datarray['uid'] = $importer['importer_uid'];
 282                         $datarray['contact-id'] = $importer['id'];
 283                         $r = post_remote($a,$datarray);
 284                         continue;
 285
 286                 }
 287
 288         }
 289
 290         xml_status(0);
 291         killme();
 292
 293 }
 294
 295
 296 function dfrn_notify_content(&$a) {
 297
 298         if(x($_GET,'dfrn_id')) {
 299                 // initial communication from external contact
 300                 $hash = random_string();
 301
 302                 $status = 0;
 303
 304                 $r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
 305
 306                 $r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
 307                         VALUES( '%s', '%s', '%s') ",
 308                         dbesc($hash),
 309                         dbesc(notags(trim($_GET['dfrn_id']))),
 310                         intval(time() + 60 )
 311                 );
 312
 313                 $r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 AND `pending` = 0 LIMIT 1",
 314                         dbesc($_GET['dfrn_id']));
 315                 if((! count($r)) || (! strlen($r[0]['prvkey'])))
 316                         $status = 1;
 317
 318                 $challenge = '';
 319
 320                 openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
 321                 $challenge = bin2hex($challenge);
 322
 323                 $encrypted_id = '';
 324                 $id_str = $_GET['dfrn_id'] . '.' . mt_rand(1000,9999);
 325
 326                 openssl_private_encrypt($id_str,$encrypted_id,$r[0]['prvkey']);
 327                 $encrypted_id = bin2hex($encrypted_id);
 328
 329                 echo '<?xml version="1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $encrypted_id . '</dfrn_id>' . '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
 330                 session_write_close();
 331                 exit;
 332
 333         }
 334
 335 }