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