include/items.php

   1 <?php
   2
   3 require_once('include/bbcode.php');
   4 require_once('include/oembed.php');
   5 require_once('include/salmon.php');
   6 require_once('include/crypto.php');
   7
   8 function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
   9
  10
  11         $sitefeed    = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
  12         $public_feed = (($dfrn_id) ? false : true);
  13         $starred     = false;   // not yet implemented, possible security issues
  14         $converse    = false;
  15
  16         if($public_feed && $a->argc > 2) {
  17                 for($x = 2; $x < $a->argc; $x++) {
  18                         if($a->argv[$x] == 'converse')
  19                                 $converse = true;
  20                         if($a->argv[$x] == 'starred')
  21                                 $starred = true;
  22                         if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
  23                                 $category = $a->argv[$x+1];
  24                 }
  25
  26
  27         }
  28
  29
  30
  31         // default permissions - anonymous user
  32
  33         $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid`  = '' AND `deny_gid`  = '' ";
  34
  35         $r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
  36                 FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
  37                 WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
  38                 dbesc($owner_nick)
  39         );
  40
  41         if(! count($r))
  42                 killme();
  43
  44         $owner = $r[0];
  45         $owner_id = $owner['user_uid'];
  46         $owner_nick = $owner['nickname'];
  47
  48         $birthday = feed_birthday($owner_id,$owner['timezone']);
  49
  50         if(! $public_feed) {
  51
  52                 $sql_extra = '';
  53                 switch($direction) {
  54                         case (-1):
  55                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
  56                                 $my_id = $dfrn_id;
  57                                 break;
  58                         case 0:
  59                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  60                                 $my_id = '1:' . $dfrn_id;
  61                                 break;
  62                         case 1:
  63                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  64                                 $my_id = '0:' . $dfrn_id;
  65                                 break;
  66                         default:
  67                                 return false;
  68                                 break; // NOTREACHED
  69                 }
  70
  71                 $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
  72                         intval($owner_id)
  73                 );
  74
  75                 if(! count($r))
  76                         killme();
  77
  78                 $contact = $r[0];
  79                 $groups = init_groups_visitor($contact['id']);
  80
  81                 if(count($groups)) {
  82                         for($x = 0; $x < count($groups); $x ++)
  83                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  84                         $gs = implode('|', $groups);
  85                 }
  86                 else
  87                         $gs = '<<>>' ; // Impossible to match
  88
  89                 $sql_extra = sprintf("
  90                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
  91                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
  92                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
  93                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
  94                 ",
  95                         intval($contact['id']),
  96                         intval($contact['id']),
  97                         dbesc($gs),
  98                         dbesc($gs)
  99                 );
 100         }
 101
 102         if($public_feed)
 103                 $sort = 'DESC';
 104         else
 105                 $sort = 'ASC';
 106
 107         if(! strlen($last_update))
 108                 $last_update = 'now -30 days';
 109
 110         if(isset($category)) {
 111                 $sql_extra .= file_tag_file_query('item',$category,'category');
 112         }
 113
 114         if($public_feed) {
 115                 if(! $converse)
 116                         $sql_extra .= " AND `contact`.`self` = 1 ";
 117         }
 118
 119         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
 120
 121         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
 122                 `contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
 123                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
 124                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
 125                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
 126                 `sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
 127                 FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 128                 LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
 129                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
 130                 AND `item`.`wall` = 1 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 131                 AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
 132                 $sql_extra
 133                 ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
 134                 intval($owner_id),
 135                 dbesc($check_date),
 136                 dbesc($check_date),
 137                 dbesc($sort)
 138         );
 139
 140         // Will check further below if this actually returned results.
 141         // We will provide an empty feed if that is the case.
 142
 143         $items = $r;
 144
 145         $feed_template = get_markup_template(($dfrn_id) ? 'atom_feed_dfrn.tpl' : 'atom_feed.tpl');
 146
 147         $atom = '';
 148
 149         $hubxml = feed_hublinks();
 150
 151         $salmon = feed_salmonlinks($owner_nick);
 152
 153         $atom .= replace_macros($feed_template, array(
 154                 '$version'      => xmlify(FRIENDICA_VERSION),
 155                 '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 156                 '$feed_title'   => xmlify($owner['name']),
 157                 '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
 158                 '$hub'          => $hubxml,
 159                 '$salmon'       => $salmon,
 160                 '$name'         => xmlify($owner['name']),
 161                 '$profile_page' => xmlify($owner['url']),
 162                 '$photo'        => xmlify($owner['photo']),
 163                 '$thumb'        => xmlify($owner['thumb']),
 164                 '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 165                 '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 166                 '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 167                 '$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : ''),
 168                 '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 169         ));
 170
 171         call_hooks('atom_feed', $atom);
 172
 173         if(! count($items)) {
 174
 175                 call_hooks('atom_feed_end', $atom);
 176
 177                 $atom .= '</feed>' . "\r\n";
 178                 return $atom;
 179         }
 180
 181         foreach($items as $item) {
 182
 183                 // public feeds get html, our own nodes use bbcode
 184
 185                 if($public_feed) {
 186                         $type = 'html';
 187                         // catch any email that's in a public conversation and make sure it doesn't leak
 188                         if($item['private'])
 189                                 continue;
 190                 }
 191                 else {
 192                         $type = 'text';
 193                 }
 194
 195                 $atom .= atom_entry($item,$type,null,$owner,true);
 196         }
 197
 198         call_hooks('atom_feed_end', $atom);
 199
 200         $atom .= '</feed>' . "\r\n";
 201
 202         return $atom;
 203 }
 204
 205
 206 function construct_verb($item) {
 207         if($item['verb'])
 208                 return $item['verb'];
 209         return ACTIVITY_POST;
 210 }
 211
 212 function construct_activity_object($item) {
 213
 214         if($item['object']) {
 215                 $o = '<as:object>' . "\r\n";
 216                 $r = parse_xml_string($item['object'],false);
 217
 218
 219                 if(! $r)
 220                         return '';
 221                 if($r->type)
 222                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 223                 if($r->id)
 224                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 225                 if($r->title)
 226                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 227                 if($r->link) {
 228                         if(substr($r->link,0,1) === '<') {
 229                                 // patch up some facebook "like" activity objects that got stored incorrectly
 230                                 // for a couple of months prior to 9-Jun-2011 and generated bad XML.
 231                                 // we can probably remove this hack here and in the following function in a few months time.
 232                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 233                                         $r->link = str_replace('&','&amp;', $r->link);
 234                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 235                                 $o .= $r->link;
 236                         }
 237                         else
 238                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 239                 }
 240                 if($r->content)
 241                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 242                 $o .= '</as:object>' . "\r\n";
 243                 return $o;
 244         }
 245
 246         return '';
 247 }
 248
 249 function construct_activity_target($item) {
 250
 251         if($item['target']) {
 252                 $o = '<as:target>' . "\r\n";
 253                 $r = parse_xml_string($item['target'],false);
 254                 if(! $r)
 255                         return '';
 256                 if($r->type)
 257                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 258                 if($r->id)
 259                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 260                 if($r->title)
 261                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 262                 if($r->link) {
 263                         if(substr($r->link,0,1) === '<') {
 264                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 265                                         $r->link = str_replace('&','&amp;', $r->link);
 266                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 267                                 $o .= $r->link;
 268                         }
 269                         else
 270                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 271                 }
 272                 if($r->content)
 273                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 274                 $o .= '</as:target>' . "\r\n";
 275                 return $o;
 276         }
 277
 278         return '';
 279 }
 280
 281
 282
 283
 284 function get_atom_elements($feed,$item) {
 285
 286         require_once('library/HTMLPurifier.auto.php');
 287         require_once('include/html2bbcode.php');
 288
 289         $best_photo = array();
 290
 291         $res = array();
 292
 293         $author = $item->get_author();
 294         if($author) {
 295                 $res['author-name'] = unxmlify($author->get_name());
 296                 $res['author-link'] = unxmlify($author->get_link());
 297         }
 298         else {
 299                 $res['author-name'] = unxmlify($feed->get_title());
 300                 $res['author-link'] = unxmlify($feed->get_permalink());
 301         }
 302         $res['uri'] = unxmlify($item->get_id());
 303         $res['title'] = unxmlify($item->get_title());
 304         $res['body'] = unxmlify($item->get_content());
 305         $res['plink'] = unxmlify($item->get_link(0));
 306
 307         if($res['plink'])
 308                 $base_url = implode('/', array_slice(explode('/',$res['plink']),0,3));
 309         else
 310                 $base_url = '';
 311
 312         // look for a photo. We should check media size and find the best one,
 313         // but for now let's just find any author photo
 314
 315         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 316
 317         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 318                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 319                 foreach($base as $link) {
 320                         if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 321                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 322                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 323                         }
 324                 }
 325         }
 326
 327         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 328
 329         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 330                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 331                 if($base && count($base)) {
 332                         foreach($base as $link) {
 333                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 334                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 335                                 if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 336                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 337                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 338                                 }
 339                         }
 340                 }
 341         }
 342
 343         // No photo/profile-link on the item - look at the feed level
 344
 345         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 346                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 347                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 348                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 349                         foreach($base as $link) {
 350                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 351                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 352                                 if(! $res['author-avatar']) {
 353                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 354                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 355                                 }
 356                         }
 357                 }
 358
 359                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 360
 361                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 362                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 363
 364                         if($base && count($base)) {
 365                                 foreach($base as $link) {
 366                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 367                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 368                                         if(! (x($res,'author-avatar'))) {
 369                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 370                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 371                                         }
 372                                 }
 373                         }
 374                 }
 375         }
 376
 377         $apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info');
 378         if($apps && $apps[0]['attribs']['']['source']) {
 379                 $res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source']));
 380                 if($res['app'] === 'web')
 381                         $res['app'] = 'OStatus';
 382         }
 383
 384         // base64 encoded json structure representing Diaspora signature
 385
 386         $dsig = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_signature');
 387         if($dsig) {
 388                 $res['dsprsig'] = unxmlify($dsig[0]['data']);
 389         }
 390
 391         $dguid = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_guid');
 392         if($dguid)
 393                 $res['guid'] = unxmlify($dguid[0]['data']);
 394
 395         $bm = $item->get_item_tags(NAMESPACE_DFRN,'bookmark');
 396         if($bm)
 397                 $res['bookmark'] = ((unxmlify($bm[0]['data']) === 'true') ? 1 : 0);
 398
 399
 400         /**
 401          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 402          */
 403
 404         $have_real_body = false;
 405
 406         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 407         if($rawenv) {
 408                 $have_real_body = true;
 409                 $res['body'] = $rawenv[0]['data'];
 410                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 411                 // make sure nobody is trying to sneak some html tags by us
 412                 $res['body'] = notags(base64url_decode($res['body']));
 413         }
 414
 415         $maxlen = get_max_import_size();
 416         if($maxlen && (strlen($res['body']) > $maxlen))
 417                 $res['body'] = substr($res['body'],0, $maxlen);
 418
 419         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 420         // the content type. Our own network only emits text normally, though it might have been converted to
 421         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 422         // have to assume it is all html and needs to be purified.
 423
 424         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 425         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 426         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 427         // html.
 428
 429         if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) {
 430
 431                 $res['body'] = reltoabs($res['body'],$base_url);
 432
 433                 $res['body'] = html2bb_video($res['body']);
 434
 435                 $res['body'] = oembed_html2bbcode($res['body']);
 436
 437                 $config = HTMLPurifier_Config::createDefault();
 438                 $config->set('Cache.DefinitionImpl', null);
 439
 440                 // we shouldn't need a whitelist, because the bbcode converter
 441                 // will strip out any unsupported tags.
 442
 443                 $purifier = new HTMLPurifier($config);
 444                 $res['body'] = $purifier->purify($res['body']);
 445
 446                 $res['body'] = @html2bbcode($res['body']);
 447         }
 448         elseif(! $have_real_body) {
 449
 450                 // it's not one of our messages and it has no tags
 451                 // so it's probably just text. We'll escape it just to be safe.
 452
 453                 $res['body'] = escape_tags($res['body']);
 454         }
 455
 456         // this tag is obsolete but we keep it for really old sites
 457
 458         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 459         if($allow && $allow[0]['data'] == 1)
 460                 $res['last-child'] = 1;
 461         else
 462                 $res['last-child'] = 0;
 463
 464         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 465         if($private && $private[0]['data'] == 1)
 466                 $res['private'] = 1;
 467         else
 468                 $res['private'] = 0;
 469
 470         $extid = $item->get_item_tags(NAMESPACE_DFRN,'extid');
 471         if($extid && $extid[0]['data'])
 472                 $res['extid'] = $extid[0]['data'];
 473
 474         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 475         if($rawlocation)
 476                 $res['location'] = unxmlify($rawlocation[0]['data']);
 477
 478
 479         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 480         if($rawcreated)
 481                 $res['created'] = unxmlify($rawcreated[0]['data']);
 482
 483
 484         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 485         if($rawedited)
 486                 $res['edited'] = unxmlify($rawedited[0]['data']);
 487
 488         if((x($res,'edited')) && (! (x($res,'created'))))
 489                 $res['created'] = $res['edited'];
 490
 491         if(! $res['created'])
 492                 $res['created'] = $item->get_date('c');
 493
 494         if(! $res['edited'])
 495                 $res['edited'] = $item->get_date('c');
 496
 497
 498         // Disallow time travelling posts
 499
 500         $d1 = strtotime($res['created']);
 501         $d2 = strtotime($res['edited']);
 502         $d3 = strtotime('now');
 503
 504         if($d1 > $d3)
 505                 $res['created'] = datetime_convert();
 506         if($d2 > $d3)
 507                 $res['edited'] = datetime_convert();
 508
 509         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 510         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 511                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 512         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 513                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 514         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 515                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 516         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 517                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 518
 519         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 520                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 521
 522                 foreach($base as $link) {
 523                         if(!x($res, 'owner-avatar') || !$res['owner-avatar']) {
 524                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 525                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 526                         }
 527                 }
 528         }
 529
 530         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 531         if($rawgeo)
 532                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 533
 534
 535         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 536
 537         // select between supported verbs
 538
 539         if($rawverb) {
 540                 $res['verb'] = unxmlify($rawverb[0]['data']);
 541         }
 542
 543         // translate OStatus unfollow to activity streams if it happened to get selected
 544
 545         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 546                 $res['verb'] = ACTIVITY_UNFOLLOW;
 547
 548         $cats = $item->get_categories();
 549         if($cats) {
 550                 $tag_arr = array();
 551                 foreach($cats as $cat) {
 552                         $term = $cat->get_term();
 553                         if(! $term)
 554                                 $term = $cat->get_label();
 555                         $scheme = $cat->get_scheme();
 556                         if($scheme && $term && stristr($scheme,'X-DFRN:'))
 557                                 $tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
 558                         elseif($term)
 559                                 $tag_arr[] = notags(trim($term));
 560                 }
 561                 $res['tag'] =  implode(',', $tag_arr);
 562         }
 563
 564         $attach = $item->get_enclosures();
 565         if($attach) {
 566                 $att_arr = array();
 567                 foreach($attach as $att) {
 568                         $len   = intval($att->get_length());
 569                         $link  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
 570                         $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
 571                         $type  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
 572                         if(strpos($type,';'))
 573                                 $type = substr($type,0,strpos($type,';'));
 574                         if((! $link) || (strpos($link,'http') !== 0))
 575                                 continue;
 576
 577                         if(! $title)
 578                                 $title = ' ';
 579                         if(! $type)
 580                                 $type = 'application/octet-stream';
 581
 582                         $att_arr[] = '[attach]href="' . $link . '" length="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
 583                 }
 584                 $res['attach'] = implode(',', $att_arr);
 585         }
 586
 587         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 588
 589         if($rawobj) {
 590                 $res['object'] = '<object>' . "\n";
 591                 $child = $rawobj[0]['child'];
 592                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 593                         $res['object-type'] = $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 594                         $res['object'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 595                 }
 596                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 597                         $res['object'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 598                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 599                         $res['object'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 600                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 601                         $res['object'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 602                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 603                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 604                         if(! $body)
 605                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 606                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 607                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 608                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 609
 610                                 $body = html2bb_video($body);
 611
 612                                 $config = HTMLPurifier_Config::createDefault();
 613                                 $config->set('Cache.DefinitionImpl', null);
 614
 615                                 $purifier = new HTMLPurifier($config);
 616                                 $body = $purifier->purify($body);
 617                                 $body = html2bbcode($body);
 618                         }
 619
 620                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 621                 }
 622
 623                 $res['object'] .= '</object>' . "\n";
 624         }
 625
 626         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 627
 628         if($rawobj) {
 629                 $res['target'] = '<target>' . "\n";
 630                 $child = $rawobj[0]['child'];
 631                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 632                         $res['target'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 633                 }
 634                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 635                         $res['target'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 636                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 637                         $res['target'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 638                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 639                         $res['target'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 640                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 641                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 642                         if(! $body)
 643                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 644                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 645                         $res['target'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 646                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 647
 648                                 $body = html2bb_video($body);
 649
 650                                 $config = HTMLPurifier_Config::createDefault();
 651                                 $config->set('Cache.DefinitionImpl', null);
 652
 653                                 $purifier = new HTMLPurifier($config);
 654                                 $body = $purifier->purify($body);
 655                                 $body = html2bbcode($body);
 656                         }
 657
 658                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 659                 }
 660
 661                 $res['target'] .= '</target>' . "\n";
 662         }
 663
 664         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 665
 666         call_hooks('parse_atom', $arr);
 667
 668         return $res;
 669 }
 670
 671 function encode_rel_links($links) {
 672         $o = '';
 673         if(! ((is_array($links)) && (count($links))))
 674                 return $o;
 675         foreach($links as $link) {
 676                 $o .= '<link ';
 677                 if($link['attribs']['']['rel'])
 678                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
 679                 if($link['attribs']['']['type'])
 680                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
 681                 if($link['attribs']['']['href'])
 682                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
 683                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
 684                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
 685                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
 686                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
 687                 $o .= ' />' . "\n" ;
 688         }
 689         return xmlify($o);
 690 }
 691
 692 function item_store($arr,$force_parent = false) {
 693
 694         // If a Diaspora signature structure was passed in, pull it out of the
 695         // item array and set it aside for later storage.
 696
 697         $dsprsig = null;
 698         if(x($arr,'dsprsig')) {
 699                 $dsprsig = json_decode(base64_decode($arr['dsprsig']));
 700                 unset($arr['dsprsig']);
 701         }
 702
 703         if(x($arr, 'gravity'))
 704                 $arr['gravity'] = intval($arr['gravity']);
 705         elseif($arr['parent-uri'] === $arr['uri'])
 706                 $arr['gravity'] = 0;
 707         elseif(activity_match($arr['verb'],ACTIVITY_POST))
 708                 $arr['gravity'] = 6;
 709         else
 710                 $arr['gravity'] = 6;   // extensible catchall
 711
 712         if(! x($arr,'type'))
 713                 $arr['type']      = 'remote';
 714
 715         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
 716
 717         if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
 718                 $arr['body'] = strip_tags($arr['body']);
 719
 720
 721         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
 722         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
 723         $arr['extid']         = ((x($arr,'extid'))         ? notags(trim($arr['extid']))         : '');
 724         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
 725         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
 726         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
 727         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
 728         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
 729         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
 730         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
 731         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
 732         $arr['commented']     = datetime_convert();
 733         $arr['received']      = datetime_convert();
 734         $arr['changed']       = datetime_convert();
 735         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
 736         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
 737         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
 738         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
 739         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
 740         $arr['deleted']       = 0;
 741         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
 742         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
 743         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
 744         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
 745         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
 746         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
 747         $arr['plink']         = ((x($arr,'plink'))         ? notags(trim($arr['plink']))         : '');
 748         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
 749         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
 750         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
 751         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
 752         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
 753         $arr['bookmark']      = ((x($arr,'bookmark'))      ? intval($arr['bookmark'])            : 0 );
 754         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
 755         $arr['tag']           = ((x($arr,'tag'))           ? notags(trim($arr['tag']))           : '');
 756         $arr['attach']        = ((x($arr,'attach'))        ? notags(trim($arr['attach']))        : '');
 757         $arr['app']           = ((x($arr,'app'))           ? notags(trim($arr['app']))           : '');
 758         $arr['origin']        = ((x($arr,'origin'))        ? intval($arr['origin'])              : 0 );
 759         $arr['guid']          = ((x($arr,'guid'))          ? notags(trim($arr['guid']))          : get_guid());
 760
 761         if($arr['parent-uri'] === $arr['uri']) {
 762                 $parent_id = 0;
 763                 $parent_deleted = 0;
 764                 $allow_cid = $arr['allow_cid'];
 765                 $allow_gid = $arr['allow_gid'];
 766                 $deny_cid  = $arr['deny_cid'];
 767                 $deny_gid  = $arr['deny_gid'];
 768         }
 769         else {
 770
 771                 // find the parent and snarf the item id and ACL's
 772                 // and anything else we need to inherit
 773
 774                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
 775                         dbesc($arr['parent-uri']),
 776                         intval($arr['uid'])
 777                 );
 778
 779                 if(count($r)) {
 780
 781                         // is the new message multi-level threaded?
 782                         // even though we don't support it now, preserve the info
 783                         // and re-attach to the conversation parent.
 784
 785                         if($r[0]['uri'] != $r[0]['parent-uri']) {
 786                                 $arr['thr-parent'] = $arr['parent-uri'];
 787                                 $arr['parent-uri'] = $r[0]['parent-uri'];
 788                                 $z = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `parent-uri` = '%s' AND `uid` = %d
 789                                         ORDER BY `id` ASC LIMIT 1",
 790                                         dbesc($r[0]['parent-uri']),
 791                                         dbesc($r[0]['parent-uri']),
 792                                         intval($arr['uid'])
 793                                 );
 794                                 if($z && count($z))
 795                                         $r = $z;
 796                         }
 797
 798                         $parent_id      = $r[0]['id'];
 799                         $parent_deleted = $r[0]['deleted'];
 800                         $allow_cid      = $r[0]['allow_cid'];
 801                         $allow_gid      = $r[0]['allow_gid'];
 802                         $deny_cid       = $r[0]['deny_cid'];
 803                         $deny_gid       = $r[0]['deny_gid'];
 804                         $arr['wall']    = $r[0]['wall'];
 805                 }
 806                 else {
 807
 808                         // Allow one to see reply tweets from status.net even when
 809                         // we don't have or can't see the original post.
 810
 811                         if($force_parent) {
 812                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
 813                                 $parent_id = 0;
 814                                 $arr['thr-parent'] = $arr['parent-uri'];
 815                                 $arr['parent-uri'] = $arr['uri'];
 816                                 $arr['gravity'] = 0;
 817                         }
 818                         else {
 819                                 logger('item_store: item parent was not found - ignoring item');
 820                                 return 0;
 821                         }
 822
 823                         $parent_deleted = 0;
 824                 }
 825         }
 826
 827         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 828                 dbesc($arr['uri']),
 829                 intval($arr['uid'])
 830         );
 831         if($r && count($r)) {
 832                 logger('item-store: duplicate item ignored. ' . print_r($arr,true));
 833                 return 0;
 834         }
 835
 836         call_hooks('post_remote',$arr);
 837
 838         if(x($arr,'cancel')) {
 839                 logger('item_store: post cancelled by plugin.');
 840                 return 0;
 841         }
 842
 843         dbesc_array($arr);
 844
 845         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
 846
 847         $r = dbq("INSERT INTO `item` (`"
 848                         . implode("`, `", array_keys($arr))
 849                         . "`) VALUES ('"
 850                         . implode("', '", array_values($arr))
 851                         . "')" );
 852
 853         // find the item we just created
 854
 855         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC ",
 856                 $arr['uri'],           // already dbesc'd
 857                 intval($arr['uid'])
 858         );
 859
 860         if(count($r)) {
 861                 $current_post = $r[0]['id'];
 862                 logger('item_store: created item ' . $current_post);
 863         }
 864         else {
 865                 logger('item_store: could not locate created item');
 866                 return 0;
 867         }
 868         if(count($r) > 1) {
 869                 logger('item_store: duplicated post occurred. Removing duplicates.');
 870                 q("DELETE FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `id` != %d ",
 871                         $arr['uri'],
 872                         intval($arr['uid']),
 873                         intval($current_post)
 874                 );
 875         }
 876
 877         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
 878                 $parent_id = $current_post;
 879
 880         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
 881                 $private = 1;
 882         else
 883                 $private = $arr['private'];
 884
 885         // Set parent id - and also make sure to inherit the parent's ACL's.
 886
 887         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
 888                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d LIMIT 1",
 889                 intval($parent_id),
 890                 dbesc($allow_cid),
 891                 dbesc($allow_gid),
 892                 dbesc($deny_cid),
 893                 dbesc($deny_gid),
 894                 intval($private),
 895                 intval($parent_deleted),
 896                 intval($current_post)
 897         );
 898
 899         // update the commented timestamp on the parent
 900
 901         q("UPDATE `item` set `commented` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
 902                 dbesc(datetime_convert()),
 903                 dbesc(datetime_convert()),
 904                 intval($parent_id)
 905         );
 906
 907         if($dsprsig) {
 908                 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
 909                         intval($current_post),
 910                         dbesc($dsprsig->signed_text),
 911                         dbesc($dsprsig->signature),
 912                         dbesc($dsprsig->signer)
 913                 );
 914         }
 915
 916
 917         /**
 918          * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
 919          */
 920
 921         if($arr['last-child']) {
 922                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
 923                         dbesc($arr['uri']),
 924                         intval($arr['uid']),
 925                         intval($current_post)
 926                 );
 927         }
 928
 929         tag_deliver($arr['uid'],$current_post);
 930
 931         return $current_post;
 932 }
 933
 934 function get_item_contact($item,$contacts) {
 935         if(! count($contacts) || (! is_array($item)))
 936                 return false;
 937         foreach($contacts as $contact) {
 938                 if($contact['id'] == $item['contact-id']) {
 939                         return $contact;
 940                         break; // NOTREACHED
 941                 }
 942         }
 943         return false;
 944 }
 945
 946
 947 function tag_deliver($uid,$item_id) {
 948
 949         // look for mention tags and setup a second delivery chain for forum/community posts if appropriate
 950
 951         $a = get_app();
 952
 953         $mention = false;
 954
 955         $u = q("select * from user where uid = %d limit 1",
 956                 intval($uid)
 957         );
 958         if(! count($u))
 959                 return;
 960
 961         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
 962         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
 963
 964
 965         $i = q("select * from item where id = %d and uid = %d limit 1",
 966                 intval($item_id),
 967                 intval($uid)
 968         );
 969         if(! count($i))
 970                 return;
 971
 972         $item = $i[0];
 973
 974         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
 975
 976         // Diaspora uses their own hardwired link URL in @-tags
 977         // instead of the one we supply with webfinger
 978
 979         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
 980
 981         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
 982         if($cnt) {
 983                 foreach($matches as $mtch) {
 984                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
 985                                 $mention = true;
 986                                 logger('tag_deliver: mention found: ' . $mtch[2]);
 987                         }
 988                 }
 989         }
 990
 991         if((! $mention) && (! $prvgroup))
 992                 return;
 993
 994         if($mention) {
 995
 996                 // send a notification
 997
 998                 require_once('include/enotify.php');
 999                 notification(array(
1000                         'type'         => NOTIFY_TAGSELF,
1001                         'notify_flags' => $u[0]['notify-flags'],
1002                         'language'     => $u[0]['language'],
1003                         'to_name'      => $u[0]['username'],
1004                         'to_email'     => $u[0]['email'],
1005                         'uid'          => $u[0]['uid'],
1006                         'item'         => $item,
1007                         'link'         => $a->get_baseurl() . '/display/' . $u[0]['nickname'] . '/' . $item['id'],
1008                         'source_name'  => $item['author-name'],
1009                         'source_link'  => $item['author-link'],
1010                         'source_photo' => $item['author-avatar'],
1011                         'verb'         => ACTIVITY_TAG,
1012                         'otype'        => 'item'
1013                 ));
1014
1015                 if(! $community_page)
1016                         return;
1017         }
1018
1019         // tgroup delivery - setup a second delivery chain
1020         // prevent delivery looping - only proceed
1021         // if the message originated elsewhere and is a top-level post
1022
1023         if(($item['wall']) || ($item['origin']) || ($item['id'] != $item['parent']))
1024                 return;
1025
1026         // now change this copy of the post to a forum head message and deliver to all the tgroup members
1027
1028
1029         $c = q("select name, url, thumb from contact where self = 1 and uid = %d limit 1",
1030                 intval($u[0]['uid'])
1031         );
1032         if(! count($c))
1033                 return;
1034
1035         // also reset all the privacy bits to the forum default permissions
1036
1037         $private = ($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0;
1038
1039         q("update item set wall = 1, origin = 1, forum_mode = 1, `owner-name` = '%s', `owner-link` = '%s', `owner-avatar` = '%s',
1040                 `private` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'  where id = %d limit 1",
1041                 dbesc($c[0]['name']),
1042                 dbesc($c[0]['url']),
1043                 dbesc($c[0]['thumb']),
1044                 intval($private),
1045                 dbesc($u[0]['allow_cid']),
1046                 dbesc($u[0]['allow_gid']),
1047                 dbesc($u[0]['deny_cid']),
1048                 dbesc($u[0]['deny_gid']),
1049                 intval($item_id)
1050         );
1051
1052         proc_run('php','include/notifier.php','tgroup',$item_id);
1053
1054 }
1055
1056
1057
1058
1059
1060
1061 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
1062
1063         $a = get_app();
1064
1065 //      if((! strlen($contact['issued-id'])) && (! $contact['duplex']) && (! ($owner['page-flags'] == PAGE_COMMUNITY)))
1066 //              return 3;
1067
1068         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
1069
1070         if($contact['duplex'] && $contact['dfrn-id'])
1071                 $idtosend = '0:' . $orig_id;
1072         if($contact['duplex'] && $contact['issued-id'])
1073                 $idtosend = '1:' . $orig_id;
1074
1075         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
1076
1077         $rino_enable = get_config('system','rino_encrypt');
1078
1079         if(! $rino_enable)
1080                 $rino = 0;
1081
1082         $ssl_val = intval(get_config('system','ssl_policy'));
1083         $ssl_policy = '';
1084
1085         switch($ssl_val){
1086                 case SSL_POLICY_FULL:
1087                         $ssl_policy = 'full';
1088                         break;
1089                 case SSL_POLICY_SELFSIGN:
1090                         $ssl_policy = 'self';
1091                         break;
1092                 case SSL_POLICY_NONE:
1093                 default:
1094                         $ssl_policy = 'none';
1095                         break;
1096         }
1097
1098         $url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
1099
1100         logger('dfrn_deliver: ' . $url);
1101
1102         $xml = fetch_url($url);
1103
1104         $curl_stat = $a->get_curl_code();
1105         if(! $curl_stat)
1106                 return(-1); // timed out
1107
1108         logger('dfrn_deliver: ' . $xml, LOGGER_DATA);
1109
1110         if(! $xml)
1111                 return 3;
1112
1113         if(strpos($xml,'<?xml') === false) {
1114                 logger('dfrn_deliver: no valid XML returned');
1115                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
1116                 return 3;
1117         }
1118
1119         $res = parse_xml_string($xml);
1120
1121         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
1122                 return (($res->status) ? $res->status : 3);
1123
1124         $postvars     = array();
1125         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
1126         $challenge    = hex2bin((string) $res->challenge);
1127         $perm         = (($res->perm) ? $res->perm : null);
1128         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
1129         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
1130         $page         = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
1131
1132         $final_dfrn_id = '';
1133
1134         if($perm) {
1135                 if((($perm == 'rw') && (! intval($contact['writable'])))
1136                 || (($perm == 'r') && (intval($contact['writable'])))) {
1137                         q("update contact set writable = %d where id = %d limit 1",
1138                                 intval(($perm == 'rw') ? 1 : 0),
1139                                 intval($contact['id'])
1140                         );
1141                         $contact['writable'] = (string) 1 - intval($contact['writable']);
1142                 }
1143         }
1144
1145         if(($contact['duplex'] && strlen($contact['pubkey']))
1146                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1147                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1148                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
1149                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
1150         }
1151         else {
1152                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
1153                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
1154         }
1155
1156         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
1157
1158         if(strpos($final_dfrn_id,':') == 1)
1159                 $final_dfrn_id = substr($final_dfrn_id,2);
1160
1161         if($final_dfrn_id != $orig_id) {
1162                 logger('dfrn_deliver: wrong dfrn_id.');
1163                 // did not decode properly - cannot trust this site
1164                 return 3;
1165         }
1166
1167         $postvars['dfrn_id']      = $idtosend;
1168         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
1169         if($dissolve)
1170                 $postvars['dissolve'] = '1';
1171
1172
1173         if((($contact['rel']) && ($contact['rel'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1174                 $postvars['data'] = $atom;
1175                 $postvars['perm'] = 'rw';
1176         }
1177         else {
1178                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
1179                 $postvars['perm'] = 'r';
1180         }
1181
1182         $postvars['ssl_policy'] = $ssl_policy;
1183
1184         if($page)
1185                 $postvars['page'] = '1';
1186
1187         if($rino && $rino_allowed && (! $dissolve)) {
1188                 $key = substr(random_string(),0,16);
1189                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
1190                 $postvars['data'] = $data;
1191                 logger('rino: sent key = ' . $key, LOGGER_DEBUG);
1192
1193
1194                 if($dfrn_version >= 2.1) {
1195                         if(($contact['duplex'] && strlen($contact['pubkey']))
1196                                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1197                                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1198
1199                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1200                         }
1201                         else {
1202                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1203                         }
1204                 }
1205                 else {
1206                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1207                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1208                         }
1209                         else {
1210                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1211                         }
1212                 }
1213
1214                 logger('md5 rawkey ' . md5($postvars['key']));
1215
1216                 $postvars['key'] = bin2hex($postvars['key']);
1217         }
1218
1219         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
1220
1221         $xml = post_url($contact['notify'],$postvars);
1222
1223         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
1224
1225         $curl_stat = $a->get_curl_code();
1226         if((! $curl_stat) || (! strlen($xml)))
1227                 return(-1); // timed out
1228
1229         if(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
1230                 return(-1);
1231
1232         if(strpos($xml,'<?xml') === false) {
1233                 logger('dfrn_deliver: phase 2: no valid XML returned');
1234                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
1235                 return 3;
1236         }
1237
1238         $res = parse_xml_string($xml);
1239
1240         return $res->status;
1241 }
1242
1243
1244 /**
1245  *
1246  * consume_feed - process atom feed and update anything/everything we might need to update
1247  *
1248  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
1249  *
1250  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
1251  *             It is this person's stuff that is going to be updated.
1252  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
1253  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
1254  *             have a contact record.
1255  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
1256  *        might not) try and subscribe to it.
1257  * $datedir sorts in reverse order
1258  * $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
1259  *      imported prior to its children being seen in the stream unless we are certain
1260  *      of how the feed is arranged/ordered.
1261  * With $pass = 1, we only pull parent items out of the stream.
1262  * With $pass = 2, we only pull children (comments/likes).
1263  *
1264  * So running this twice, first with pass 1 and then with pass 2 will do the right
1265  * thing regardless of feed ordering. This won't be adequate in a fully-threaded
1266  * model where comments can have sub-threads. That would require some massive sorting
1267  * to get all the feed items into a mostly linear ordering, and might still require
1268  * recursion.
1269  */
1270
1271 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $pass = 0) {
1272
1273         require_once('library/simplepie/simplepie.inc');
1274
1275         if(! strlen($xml)) {
1276                 logger('consume_feed: empty input');
1277                 return;
1278         }
1279
1280         $feed = new SimplePie();
1281         $feed->set_raw_data($xml);
1282         if($datedir)
1283                 $feed->enable_order_by_date(true);
1284         else
1285                 $feed->enable_order_by_date(false);
1286         $feed->init();
1287
1288         if($feed->error())
1289                 logger('consume_feed: Error parsing XML: ' . $feed->error());
1290
1291         $permalink = $feed->get_permalink();
1292
1293         // Check at the feed level for updated contact name and/or photo
1294
1295         $name_updated  = '';
1296         $new_name = '';
1297         $photo_timestamp = '';
1298         $photo_url = '';
1299         $birthday = '';
1300
1301         $hubs = $feed->get_links('hub');
1302
1303         if(count($hubs))
1304                 $hub = implode(',', $hubs);
1305
1306         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
1307         if(! $rawtags)
1308                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
1309         if($rawtags) {
1310                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
1311                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
1312                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
1313                         $new_name = $elems['name'][0]['data'];
1314                 }
1315                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
1316                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
1317                         $photo_url = $elems['link'][0]['attribs']['']['href'];
1318                 }
1319
1320                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
1321                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
1322                 }
1323         }
1324
1325         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
1326                 logger('consume_feed: Updating photo for ' . $contact['name']);
1327                 require_once("Photo.php");
1328                 $photo_failure = false;
1329                 $have_photo = false;
1330
1331                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
1332                         intval($contact['id']),
1333                         intval($contact['uid'])
1334                 );
1335                 if(count($r)) {
1336                         $resource_id = $r[0]['resource-id'];
1337                         $have_photo = true;
1338                 }
1339                 else {
1340                         $resource_id = photo_new_resource();
1341                 }
1342
1343                 $img_str = fetch_url($photo_url,true);
1344                 $img = new Photo($img_str);
1345                 if($img->is_valid()) {
1346                         if($have_photo) {
1347                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
1348                                         dbesc($resource_id),
1349                                         intval($contact['id']),
1350                                         intval($contact['uid'])
1351                                 );
1352                         }
1353
1354                         $img->scaleImageSquare(175);
1355
1356                         $hash = $resource_id;
1357                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 4);
1358
1359                         $img->scaleImage(80);
1360                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 5);
1361
1362                         $img->scaleImage(48);
1363                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 6);
1364
1365                         $a = get_app();
1366
1367                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
1368                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
1369                                 dbesc(datetime_convert()),
1370                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.jpg'),
1371                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.jpg'),
1372                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.jpg'),
1373                                 intval($contact['uid']),
1374                                 intval($contact['id'])
1375                         );
1376                 }
1377         }
1378
1379         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
1380                 $r = q("select * from contact where uid = %d and id = %d limit 1",
1381                         intval($contact['uid']),
1382                         intval($contact['id'])
1383                 );
1384
1385                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1386                         dbesc(notags(trim($new_name))),
1387                         dbesc(datetime_convert()),
1388                         intval($contact['uid']),
1389                         intval($contact['id'])
1390                 );
1391
1392                 // do our best to update the name on content items
1393
1394                 if(count($r)) {
1395                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
1396                                 dbesc(notags(trim($new_name))),
1397                                 dbesc($r[0]['name']),
1398                                 dbesc($r[0]['url']),
1399                                 intval($contact['uid'])
1400                         );
1401                 }
1402         }
1403
1404         if(strlen($birthday)) {
1405                 if(substr($birthday,0,4) != $contact['bdyear']) {
1406                         logger('consume_feed: updating birthday: ' . $birthday);
1407
1408                         /**
1409                          *
1410                          * Add new birthday event for this person
1411                          *
1412                          * $bdtext is just a readable placeholder in case the event is shared
1413                          * with others. We will replace it during presentation to our $importer
1414                          * to contain a sparkle link and perhaps a photo.
1415                          *
1416                          */
1417
1418                         $bdtext = t('Birthday:') . ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ;
1419
1420
1421                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`desc`,`type`)
1422                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s' ) ",
1423                                 intval($contact['uid']),
1424                                 intval($contact['id']),
1425                                 dbesc(datetime_convert()),
1426                                 dbesc(datetime_convert()),
1427                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
1428                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
1429                                 dbesc($bdtext),
1430                                 dbesc('birthday')
1431                         );
1432
1433
1434                         // update bdyear
1435
1436                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1437                                 dbesc(substr($birthday,0,4)),
1438                                 intval($contact['uid']),
1439                                 intval($contact['id'])
1440                         );
1441
1442                         // This function is called twice without reloading the contact
1443                         // Make sure we only create one event. This is why &$contact
1444                         // is a reference var in this function
1445
1446                         $contact['bdyear'] = substr($birthday,0,4);
1447                 }
1448
1449         }
1450
1451         $community_page = 0;
1452         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
1453         if($rawtags) {
1454                 $community_page = intval($rawtags[0]['data']);
1455         }
1456         if(is_array($contact) && intval($contact['forum']) != $community_page) {
1457                 q("update contact set forum = %d where id = %d limit 1",
1458                         intval($community_page),
1459                         intval($contact['id'])
1460                 );
1461                 $contact['forum'] = (string) $community_page;
1462         }
1463
1464
1465         // process any deleted entries
1466
1467         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
1468         if(is_array($del_entries) && count($del_entries) && $pass != 2) {
1469                 foreach($del_entries as $dentry) {
1470                         $deleted = false;
1471                         if(isset($dentry['attribs']['']['ref'])) {
1472                                 $uri = $dentry['attribs']['']['ref'];
1473                                 $deleted = true;
1474                                 if(isset($dentry['attribs']['']['when'])) {
1475                                         $when = $dentry['attribs']['']['when'];
1476                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
1477                                 }
1478                                 else
1479                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
1480                         }
1481                         if($deleted && is_array($contact)) {
1482                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join `contact` on `item`.`contact-id` = `contact`.`id`
1483                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
1484                                         dbesc($uri),
1485                                         intval($importer['uid']),
1486                                         intval($contact['id'])
1487                                 );
1488                                 if(count($r)) {
1489                                         $item = $r[0];
1490
1491                                         if(! $item['deleted'])
1492                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
1493
1494                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
1495                                                 $xo = parse_xml_string($item['object'],false);
1496                                                 $xt = parse_xml_string($item['target'],false);
1497                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
1498                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
1499                                                                 dbesc($xt->id),
1500                                                                 intval($importer['importer_uid'])
1501                                                         );
1502                                                         if(count($i)) {
1503
1504                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
1505
1506                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
1507                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
1508                                                                 $author_copy = (($item['origin']) ? true : false);
1509
1510                                                                 if($owner_remove && $author_copy)
1511                                                                         continue;
1512                                                                 if($author_remove || $owner_remove) {
1513                                                                         $tags = explode(',',$i[0]['tag']);
1514                                                                         $newtags = array();
1515                                                                         if(count($tags)) {
1516                                                                                 foreach($tags as $tag)
1517                                                                                         if(trim($tag) !== trim($xo->body))
1518                                                                                                 $newtags[] = trim($tag);
1519                                                                         }
1520                                                                         q("update item set tag = '%s' where id = %d limit 1",
1521                                                                                 dbesc(implode(',',$newtags)),
1522                                                                                 intval($i[0]['id'])
1523                                                                         );
1524                                                                 }
1525                                                         }
1526                                                 }
1527                                         }
1528
1529                                         if($item['uri'] == $item['parent-uri']) {
1530                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1531                                                         `body` = '', `title` = ''
1532                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
1533                                                         dbesc($when),
1534                                                         dbesc(datetime_convert()),
1535                                                         dbesc($item['uri']),
1536                                                         intval($importer['uid'])
1537                                                 );
1538                                         }
1539                                         else {
1540                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1541                                                         `body` = '', `title` = ''
1542                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1543                                                         dbesc($when),
1544                                                         dbesc(datetime_convert()),
1545                                                         dbesc($uri),
1546                                                         intval($importer['uid'])
1547                                                 );
1548                                                 if($item['last-child']) {
1549                                                         // ensure that last-child is set in case the comment that had it just got wiped.
1550                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
1551                                                                 dbesc(datetime_convert()),
1552                                                                 dbesc($item['parent-uri']),
1553                                                                 intval($item['uid'])
1554                                                         );
1555                                                         // who is the last child now?
1556                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `moderated` = 0 AND `uid` = %d
1557                                                                 ORDER BY `created` DESC LIMIT 1",
1558                                                                         dbesc($item['parent-uri']),
1559                                                                         intval($importer['uid'])
1560                                                         );
1561                                                         if(count($r)) {
1562                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
1563                                                                         intval($r[0]['id'])
1564                                                                 );
1565                                                         }
1566                                                 }
1567                                         }
1568                                 }
1569                         }
1570                 }
1571         }
1572
1573         // Now process the feed
1574
1575         if($feed->get_item_quantity()) {
1576
1577                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
1578
1579         // in inverse date order
1580                 if ($datedir)
1581                         $items = array_reverse($feed->get_items());
1582                 else
1583                         $items = $feed->get_items();
1584
1585
1586                 foreach($items as $item) {
1587
1588                         $is_reply = false;
1589                         $item_id = $item->get_id();
1590                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
1591                         if(isset($rawthread[0]['attribs']['']['ref'])) {
1592                                 $is_reply = true;
1593                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
1594                         }
1595
1596                         if(($is_reply) && is_array($contact)) {
1597
1598                                 if($pass == 1)
1599                                         continue;
1600
1601                                 // Have we seen it? If not, import it.
1602
1603                                 $item_id  = $item->get_id();
1604                                 $datarray = get_atom_elements($feed,$item);
1605
1606
1607                                 if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
1608                                         $datarray['author-name'] = $contact['name'];
1609                                 if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
1610                                         $datarray['author-link'] = $contact['url'];
1611                                 if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
1612                                         $datarray['author-avatar'] = $contact['thumb'];
1613
1614                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
1615                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
1616                                         continue;
1617                                 }
1618
1619                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1620                                         dbesc($item_id),
1621                                         intval($importer['uid'])
1622                                 );
1623
1624                                 // Update content if 'updated' changes
1625
1626                                 if(count($r)) {
1627                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
1628                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1629                                                         dbesc($datarray['title']),
1630                                                         dbesc($datarray['body']),
1631                                                         dbesc($datarray['tag']),
1632                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
1633                                                         dbesc($item_id),
1634                                                         intval($importer['uid'])
1635                                                 );
1636                                         }
1637
1638                                         // update last-child if it changes
1639
1640                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1641                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
1642                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1643                                                         dbesc(datetime_convert()),
1644                                                         dbesc($parent_uri),
1645                                                         intval($importer['uid'])
1646                                                 );
1647                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1648                                                         intval($allow[0]['data']),
1649                                                         dbesc(datetime_convert()),
1650                                                         dbesc($item_id),
1651                                                         intval($importer['uid'])
1652                                                 );
1653                                         }
1654                                         continue;
1655                                 }
1656
1657                                 $force_parent = false;
1658                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
1659                                         if($contact['network'] === NETWORK_OSTATUS)
1660                                                 $force_parent = true;
1661                                         if(strlen($datarray['title']))
1662                                                 unset($datarray['title']);
1663                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1664                                                 dbesc(datetime_convert()),
1665                                                 dbesc($parent_uri),
1666                                                 intval($importer['uid'])
1667                                         );
1668                                         $datarray['last-child'] = 1;
1669                                 }
1670
1671                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
1672                                         // one way feed - no remote comment ability
1673                                         $datarray['last-child'] = 0;
1674                                 }
1675                                 $datarray['parent-uri'] = $parent_uri;
1676                                 $datarray['uid'] = $importer['uid'];
1677                                 $datarray['contact-id'] = $contact['id'];
1678                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
1679                                         $datarray['type'] = 'activity';
1680                                         $datarray['gravity'] = GRAVITY_LIKE;
1681                                         // only one like or dislike per person
1682                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 limit 1",
1683                                                 intval($datarray['uid']),
1684                                                 intval($datarray['contact-id']),
1685                                                 dbesc($datarray['verb'])
1686                                         );
1687                                         if($r && count($r))
1688                                                 continue;
1689                                 }
1690
1691                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
1692                                         $xo = parse_xml_string($datarray['object'],false);
1693                                         $xt = parse_xml_string($datarray['target'],false);
1694
1695                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
1696                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
1697                                                         dbesc($xt->id),
1698                                                         intval($importer['importer_uid'])
1699                                                 );
1700                                                 if(! count($r))
1701                                                         continue;
1702
1703                                                 // extract tag, if not duplicate, add to parent item
1704                                                 if($xo->id && $xo->content) {
1705                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
1706                                                         if(! (stristr($r[0]['tag'],$newtag))) {
1707                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1",
1708                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . $newtag),
1709                                                                         intval($r[0]['id'])
1710                                                                 );
1711                                                         }
1712                                                 }
1713                                         }
1714                                 }
1715
1716                                 $r = item_store($datarray,$force_parent);
1717                                 continue;
1718                         }
1719
1720                         else {
1721
1722                                 // Head post of a conversation. Have we seen it? If not, import it.
1723
1724                                 $item_id  = $item->get_id();
1725
1726                                 $datarray = get_atom_elements($feed,$item);
1727
1728                                 if(is_array($contact)) {
1729                                         if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
1730                                                 $datarray['author-name'] = $contact['name'];
1731                                         if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
1732                                                 $datarray['author-link'] = $contact['url'];
1733                                         if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
1734                                                 $datarray['author-avatar'] = $contact['thumb'];
1735                                 }
1736
1737                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
1738                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
1739                                         continue;
1740                                 }
1741
1742                                 // special handling for events
1743
1744                                 if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
1745                                         $ev = bbtoevent($datarray['body']);
1746                                         if(x($ev,'desc') && x($ev,'start')) {
1747                                                 $ev['uid'] = $importer['uid'];
1748                                                 $ev['uri'] = $item_id;
1749                                                 $ev['edited'] = $datarray['edited'];
1750                                                 $ev['private'] = $datarray['private'];
1751
1752                                                 if(is_array($contact))
1753                                                         $ev['cid'] = $contact['id'];
1754                                                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1755                                                         dbesc($item_id),
1756                                                         intval($importer['uid'])
1757                                                 );
1758                                                 if(count($r))
1759                                                         $ev['id'] = $r[0]['id'];
1760                                                 $xyz = event_store($ev);
1761                                                 continue;
1762                                         }
1763                                 }
1764
1765                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1766                                         dbesc($item_id),
1767                                         intval($importer['uid'])
1768                                 );
1769
1770                                 // Update content if 'updated' changes
1771
1772                                 if(count($r)) {
1773                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
1774                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1775                                                         dbesc($datarray['title']),
1776                                                         dbesc($datarray['body']),
1777                                                         dbesc($datarray['tag']),
1778                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
1779                                                         dbesc($item_id),
1780                                                         intval($importer['uid'])
1781                                                 );
1782                                         }
1783
1784                                         // update last-child if it changes
1785
1786                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1787                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
1788                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1789                                                         intval($allow[0]['data']),
1790                                                         dbesc(datetime_convert()),
1791                                                         dbesc($item_id),
1792                                                         intval($importer['uid'])
1793                                                 );
1794                                         }
1795                                         continue;
1796                                 }
1797
1798                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
1799                                         logger('consume-feed: New follower');
1800                                         new_follower($importer,$contact,$datarray,$item);
1801                                         return;
1802                                 }
1803                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
1804                                         lose_follower($importer,$contact,$datarray,$item);
1805                                         return;
1806                                 }
1807
1808                                 if(activity_match($datarray['verb'],ACTIVITY_REQ_FRIEND)) {
1809                                         logger('consume-feed: New friend request');
1810                                         new_follower($importer,$contact,$datarray,$item,true);
1811                                         return;
1812                                 }
1813                                 if(activity_match($datarray['verb'],ACTIVITY_UNFRIEND))  {
1814                                         lose_sharer($importer,$contact,$datarray,$item);
1815                                         return;
1816                                 }
1817
1818
1819                                 if(! is_array($contact))
1820                                         return;
1821
1822                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
1823                                         if(strlen($datarray['title']))
1824                                                 unset($datarray['title']);
1825                                         $datarray['last-child'] = 1;
1826                                 }
1827
1828                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
1829                                         // one way feed - no remote comment ability
1830                                         $datarray['last-child'] = 0;
1831                                 }
1832
1833                                 // This is my contact on another system, but it's really me.
1834                                 // Turn this into a wall post.
1835
1836                                 if($contact['remote_self'])
1837                                         $datarray['wall'] = 1;
1838
1839                                 $datarray['parent-uri'] = $item_id;
1840                                 $datarray['uid'] = $importer['uid'];
1841                                 $datarray['contact-id'] = $contact['id'];
1842
1843                                 if(! link_compare($datarray['owner-link'],$contact['url'])) {
1844                                         // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
1845                                         // but otherwise there's a possible data mixup on the sender's system.
1846                                         // the tgroup delivery code called from item_store will correct it if it's a forum,
1847                                         // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
1848                                         logger('consume_feed: Correcting item owner.', LOGGER_DEBUG);
1849                                         $datarray['owner-name']   = $contact['name'];
1850                                         $datarray['owner-link']   = $contact['url'];
1851                                         $datarray['owner-avatar'] = $contact['thumb'];
1852                                 }
1853
1854                                 $r = item_store($datarray);
1855                                 continue;
1856
1857                         }
1858                 }
1859         }
1860 }
1861
1862 function local_delivery($importer,$data) {
1863
1864         $a = get_app();
1865
1866         if($importer['readonly']) {
1867                 // We aren't receiving stuff from this person. But we will quietly ignore them
1868                 // rather than a blatant "go away" message.
1869                 logger('local_delivery: ignoring');
1870                 return 0;
1871                 //NOTREACHED
1872         }
1873
1874         // Consume notification feed. This may differ from consuming a public feed in several ways
1875         // - might contain email or friend suggestions
1876         // - might contain remote followup to our message
1877         //              - in which case we need to accept it and then notify other conversants
1878         // - we may need to send various email notifications
1879
1880         $feed = new SimplePie();
1881         $feed->set_raw_data($data);
1882         $feed->enable_order_by_date(false);
1883         $feed->init();
1884
1885 /*
1886         // Currently unsupported - needs a lot of work
1887         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
1888         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
1889                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
1890                 $newloc = array();
1891                 $newloc['uid'] = $importer['importer_uid'];
1892                 $newloc['cid'] = $importer['id'];
1893                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
1894                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
1895                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
1896                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
1897                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
1898                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
1899                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
1900                 $newloc['site-pubkey'] = notags(unxmlify($base['site-pubkey'][0]['data']));
1901                 $newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
1902                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));
1903
1904                 // TODO
1905                 // merge with current record, current contents have priority
1906                 // update record, set url-updated
1907                 // update profile photos
1908                 // schedule a scan?
1909
1910         }
1911 */
1912
1913         // handle friend suggestion notification
1914
1915         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
1916         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
1917                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
1918                 $fsugg = array();
1919                 $fsugg['uid'] = $importer['importer_uid'];
1920                 $fsugg['cid'] = $importer['id'];
1921                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
1922                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
1923                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
1924                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
1925                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
1926
1927                 // Does our member already have a friend matching this description?
1928
1929                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
1930                         dbesc($fsugg['name']),
1931                         dbesc(normalise_link($fsugg['url'])),
1932                         intval($fsugg['uid'])
1933                 );
1934                 if(count($r))
1935                         return 0;
1936
1937                 // Do we already have an fcontact record for this person?
1938
1939                 $fid = 0;
1940                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
1941                         dbesc($fsugg['url']),
1942                         dbesc($fsugg['name']),
1943                         dbesc($fsugg['request'])
1944                 );
1945                 if(count($r)) {
1946                         $fid = $r[0]['id'];
1947
1948                         // OK, we do. Do we already have an introduction for this person ?
1949                         $r = q("select id from intro where uid = %d and fid = %d limit 1",
1950                                 intval($fsugg['uid']),
1951                                 intval($fid)
1952                         );
1953                         if(count($r))
1954                                 return 0;
1955                 }
1956                 if(! $fid)
1957                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
1958                         dbesc($fsugg['name']),
1959                         dbesc($fsugg['url']),
1960                         dbesc($fsugg['photo']),
1961                         dbesc($fsugg['request'])
1962                 );
1963                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
1964                         dbesc($fsugg['url']),
1965                         dbesc($fsugg['name']),
1966                         dbesc($fsugg['request'])
1967                 );
1968                 if(count($r)) {
1969                         $fid = $r[0]['id'];
1970                 }
1971                 // database record did not get created. Quietly give up.
1972                 else
1973                         return 0;
1974
1975
1976                 $hash = random_string();
1977
1978                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
1979                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
1980                         intval($fsugg['uid']),
1981                         intval($fid),
1982                         intval($fsugg['cid']),
1983                         dbesc($fsugg['body']),
1984                         dbesc($hash),
1985                         dbesc(datetime_convert()),
1986                         intval(0)
1987                 );
1988
1989                 notification(array(
1990                         'type'         => NOTIFY_SUGGEST,
1991                         'notify_flags' => $importer['notify-flags'],
1992                         'language'     => $importer['language'],
1993                         'to_name'      => $importer['username'],
1994                         'to_email'     => $importer['email'],
1995                         'uid'          => $importer['importer_uid'],
1996                         'item'         => $fsugg,
1997                         'link'         => $a->get_baseurl() . '/notifications/intros',
1998                         'source_name'  => $importer['name'],
1999                         'source_link'  => $importer['url'],
2000                         'source_photo' => $importer['photo'],
2001                         'verb'         => ACTIVITY_REQ_FRIEND,
2002                         'otype'        => 'intro'
2003                 ));
2004
2005                 return 0;
2006         }
2007
2008         $ismail = false;
2009
2010         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
2011         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
2012
2013                 logger('local_delivery: private message received');
2014
2015                 $ismail = true;
2016                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
2017
2018                 $msg = array();
2019                 $msg['uid'] = $importer['importer_uid'];
2020                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
2021                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
2022                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
2023                 $msg['contact-id'] = $importer['id'];
2024                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
2025                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
2026                 $msg['seen'] = 0;
2027                 $msg['replied'] = 0;
2028                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
2029                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
2030                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
2031
2032                 dbesc_array($msg);
2033
2034                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
2035                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
2036
2037                 // send notifications.
2038
2039                 require_once('include/enotify.php');
2040
2041                 $notif_params = array(
2042                         'type' => NOTIFY_MAIL,
2043                         'notify_flags' => $importer['notify-flags'],
2044                         'language' => $importer['language'],
2045                         'to_name' => $importer['username'],
2046                         'to_email' => $importer['email'],
2047                         'uid' => $importer['importer_uid'],
2048                         'item' => $msg,
2049                         'source_name' => $msg['from-name'],
2050                         'source_link' => $importer['url'],
2051                         'source_photo' => $importer['thumb'],
2052                         'verb' => ACTIVITY_POST,
2053                         'otype' => 'mail'
2054                 );
2055
2056                 notification($notif_params);
2057                 return 0;
2058
2059                 // NOTREACHED
2060         }
2061
2062         $community_page = 0;
2063         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
2064         if($rawtags) {
2065                 $community_page = intval($rawtags[0]['data']);
2066         }
2067         if(intval($importer['forum']) != $community_page) {
2068                 q("update contact set forum = %d where id = %d limit 1",
2069                         intval($community_page),
2070                         intval($importer['id'])
2071                 );
2072                 $importer['forum'] = (string) $community_page;
2073         }
2074
2075         logger('local_delivery: feed item count = ' . $feed->get_item_quantity());
2076
2077         // process any deleted entries
2078
2079         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
2080         if(is_array($del_entries) && count($del_entries)) {
2081                 foreach($del_entries as $dentry) {
2082                         $deleted = false;
2083                         if(isset($dentry['attribs']['']['ref'])) {
2084                                 $uri = $dentry['attribs']['']['ref'];
2085                                 $deleted = true;
2086                                 if(isset($dentry['attribs']['']['when'])) {
2087                                         $when = $dentry['attribs']['']['when'];
2088                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
2089                                 }
2090                                 else
2091                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
2092                         }
2093                         if($deleted) {
2094
2095                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join contact on `item`.`contact-id` = `contact`.`id`
2096                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
2097                                         dbesc($uri),
2098                                         intval($importer['importer_uid']),
2099                                         intval($importer['id'])
2100                                 );
2101
2102                                 if(count($r)) {
2103                                         $item = $r[0];
2104
2105                                         if($item['deleted'])
2106                                                 continue;
2107
2108                                         logger('local_delivery: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
2109
2110                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2111                                                 $xo = parse_xml_string($item['object'],false);
2112                                                 $xt = parse_xml_string($item['target'],false);
2113
2114                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
2115                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
2116                                                                 dbesc($xt->id),
2117                                                                 intval($importer['importer_uid'])
2118                                                         );
2119                                                         if(count($i)) {
2120
2121                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
2122
2123                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
2124                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
2125                                                                 $author_copy = (($item['origin']) ? true : false);
2126
2127                                                                 if($owner_remove && $author_copy)
2128                                                                         continue;
2129                                                                 if($author_remove || $owner_remove) {
2130                                                                         $tags = explode(',',$i[0]['tag']);
2131                                                                         $newtags = array();
2132                                                                         if(count($tags)) {
2133                                                                                 foreach($tags as $tag)
2134                                                                                         if(trim($tag) !== trim($xo->body))
2135                                                                                                 $newtags[] = trim($tag);
2136                                                                         }
2137                                                                         q("update item set tag = '%s' where id = %d limit 1",
2138                                                                                 dbesc(implode(',',$newtags)),
2139                                                                                 intval($i[0]['id'])
2140                                                                         );
2141                                                                 }
2142                                                         }
2143                                                 }
2144                                         }
2145
2146                                         if($item['uri'] == $item['parent-uri']) {
2147                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
2148                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
2149                                                         dbesc($when),
2150                                                         dbesc(datetime_convert()),
2151                                                         dbesc($item['uri']),
2152                                                         intval($importer['importer_uid'])
2153                                                 );
2154                                         }
2155                                         else {
2156                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s'
2157                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2158                                                         dbesc($when),
2159                                                         dbesc(datetime_convert()),
2160                                                         dbesc($uri),
2161                                                         intval($importer['importer_uid'])
2162                                                 );
2163                                                 if($item['last-child']) {
2164                                                         // ensure that last-child is set in case the comment that had it just got wiped.
2165                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
2166                                                                 dbesc(datetime_convert()),
2167                                                                 dbesc($item['parent-uri']),
2168                                                                 intval($item['uid'])
2169                                                         );
2170                                                         // who is the last child now?
2171                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
2172                                                                 ORDER BY `created` DESC LIMIT 1",
2173                                                                         dbesc($item['parent-uri']),
2174                                                                         intval($importer['importer_uid'])
2175                                                         );
2176                                                         if(count($r)) {
2177                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
2178                                                                         intval($r[0]['id'])
2179                                                                 );
2180                                                         }
2181                                                 }
2182                                         }
2183                                 }
2184                         }
2185                 }
2186         }
2187
2188
2189         foreach($feed->get_items() as $item) {
2190
2191                 $is_reply = false;
2192                 $item_id = $item->get_id();
2193                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
2194                 if(isset($rawthread[0]['attribs']['']['ref'])) {
2195                         $is_reply = true;
2196                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
2197                 }
2198
2199                 if($is_reply) {
2200                         $community = false;
2201
2202                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
2203                                 $sql_extra = '';
2204                                 $community = true;
2205                                 logger('local_delivery: possible community reply');
2206                         }
2207                         else
2208                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
2209
2210                         // was the top-level post for this reply written by somebody on this site?
2211                         // Specifically, the recipient?
2212
2213                         $is_a_remote_comment = false;
2214
2215                         $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
2216                                 `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
2217                                 LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2218                                 WHERE `item`.`uri` = '%s' AND `item`.`parent-uri` = '%s'
2219                                 AND `item`.`uid` = %d
2220                                 $sql_extra
2221                                 LIMIT 1",
2222                                 dbesc($parent_uri),
2223                                 dbesc($parent_uri),
2224                                 intval($importer['importer_uid'])
2225                         );
2226                         if($r && count($r))
2227                                 $is_a_remote_comment = true;
2228
2229                         // Does this have the characteristics of a community or private group comment?
2230                         // If it's a reply to a wall post on a community/prvgroup page it's a
2231                         // valid community comment. Also forum_mode makes it valid for sure.
2232                         // If neither, it's not.
2233
2234                         if($is_a_remote_comment && $community) {
2235                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
2236                                         $is_a_remote_comment = false;
2237                                         logger('local_delivery: not a community reply');
2238                                 }
2239                         }
2240
2241                         if($is_a_remote_comment) {
2242                                 logger('local_delivery: received remote comment');
2243                                 $is_like = false;
2244                                 // remote reply to our post. Import and then notify everybody else.
2245
2246                                 $datarray = get_atom_elements($feed,$item);
2247
2248                                 $r = q("SELECT `id`, `uid`, `last-child`, `edited`, `body`  FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2249                                         dbesc($item_id),
2250                                         intval($importer['importer_uid'])
2251                                 );
2252
2253                                 // Update content if 'updated' changes
2254
2255                                 if(count($r)) {
2256                                         $iid = $r[0]['id'];
2257                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2258                                                 logger('received updated comment' , LOGGER_DEBUG);
2259                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2260                                                         dbesc($datarray['title']),
2261                                                         dbesc($datarray['body']),
2262                                                         dbesc($datarray['tag']),
2263                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2264                                                         dbesc($item_id),
2265                                                         intval($importer['importer_uid'])
2266                                                 );
2267
2268                                                 proc_run('php',"include/notifier.php","comment-import",$iid);
2269
2270                                         }
2271
2272                                         continue;
2273                                 }
2274
2275
2276                                 // TODO: make this next part work against both delivery threads of a community post
2277
2278 //                              if((! link_compare($datarray['author-link'],$importer['url'])) && (! $community)) {
2279 //                                      logger('local_delivery: received relay claiming to be from ' . $importer['url'] . ' however comment author url is ' . $datarray['author-link'] );
2280                                         // they won't know what to do so don't report an error. Just quietly die.
2281 //                                      return 0;
2282 //                              }
2283
2284                                 // our user with $importer['importer_uid'] is the owner
2285
2286                                 $own = q("select name,url,thumb from contact where uid = %d and self = 1 limit 1",
2287                                         intval($importer['importer_uid'])
2288                                 );
2289
2290
2291                                 $datarray['type'] = 'remote-comment';
2292                                 $datarray['wall'] = 1;
2293                                 $datarray['parent-uri'] = $parent_uri;
2294                                 $datarray['uid'] = $importer['importer_uid'];
2295                                 $datarray['owner-name'] = $own[0]['name'];
2296                                 $datarray['owner-link'] = $own[0]['url'];
2297                                 $datarray['owner-avatar'] = $own[0]['thumb'];
2298                                 $datarray['contact-id'] = $importer['id'];
2299
2300                                 if(($datarray['verb'] === ACTIVITY_LIKE) || ($datarray['verb'] === ACTIVITY_DISLIKE)) {
2301                                         $is_like = true;
2302                                         $datarray['type'] = 'activity';
2303                                         $datarray['gravity'] = GRAVITY_LIKE;
2304                                         $datarray['last-child'] = 0;
2305                                         // only one like or dislike per person
2306                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 limit 1",
2307                                                 intval($datarray['uid']),
2308                                                 intval($datarray['contact-id']),
2309                                                 dbesc($datarray['verb'])
2310                                         );
2311                                         if($r && count($r))
2312                                                 continue;
2313                                 }
2314
2315                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2316
2317                                         $xo = parse_xml_string($datarray['object'],false);
2318                                         $xt = parse_xml_string($datarray['target'],false);
2319
2320                                         if(($xt->type == ACTIVITY_OBJ_NOTE) && ($xt->id)) {
2321
2322                                                 // fetch the parent item
2323
2324                                                 $tagp = q("select * from item where uri = '%s' and uid = %d limit 1",
2325                                                         dbesc($xt->id),
2326                                                         intval($importer['importer_uid'])
2327                                                 );
2328                                                 if(! count($tagp))
2329                                                         continue;
2330
2331                                                 // extract tag, if not duplicate, and this user allows tags, add to parent item
2332
2333                                                 if($xo->id && $xo->content) {
2334                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
2335                                                         if(! (stristr($tagp[0]['tag'],$newtag))) {
2336                                                                 $i = q("SELECT `blocktags` FROM `user` where `uid` = %d LIMIT 1",
2337                                                                         intval($importer['importer_uid'])
2338                                                                 );
2339                                                                 if(count($i) && ! intval($i[0]['blocktags'])) {
2340                                                                         q("UPDATE item SET tag = '%s', `edited` = '%s' WHERE id = %d LIMIT 1",
2341                                                                                 dbesc($tagp[0]['tag'] . (strlen($tagp[0]['tag']) ? ',' : '') . $newtag),
2342                                                                                 intval($tagp[0]['id']),
2343                                                                                 dbesc(datetime_convert())
2344                                                                         );
2345                                                                 }
2346                                                         }
2347                                                 }
2348                                         }
2349                                 }
2350
2351 //                              if($community) {
2352 //                                      $newtag = '@[url=' . $a->get_baseurl() . '/profile/' . $importer['nickname'] . ']' . $importer['username'] . '[/url]';
2353 //                                      if(! stristr($datarray['tag'],$newtag)) {
2354 //                                              if(strlen($datarray['tag']))
2355 //                                                      $datarray['tag'] .= ',';
2356 //                                              $datarray['tag'] .= $newtag;
2357 //                                      }
2358 //                              }
2359
2360
2361                                 $posted_id = item_store($datarray);
2362                                 $parent = 0;
2363
2364                                 if($posted_id) {
2365                                         $r = q("SELECT `parent` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
2366                                                 intval($posted_id),
2367                                                 intval($importer['importer_uid'])
2368                                         );
2369                                         if(count($r))
2370                                                 $parent = $r[0]['parent'];
2371
2372                                         if(! $is_like) {
2373                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
2374                                                         dbesc(datetime_convert()),
2375                                                         intval($importer['importer_uid']),
2376                                                         intval($r[0]['parent'])
2377                                                 );
2378
2379                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
2380                                                         dbesc(datetime_convert()),
2381                                                         intval($importer['importer_uid']),
2382                                                         intval($posted_id)
2383                                                 );
2384                                         }
2385
2386                                         if($posted_id && $parent) {
2387
2388                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
2389
2390                                                 if((! $is_like) && (! $importer['self'])) {
2391
2392                                                         require_once('include/enotify.php');
2393
2394                                                         notification(array(
2395                                                                 'type'         => NOTIFY_COMMENT,
2396                                                                 'notify_flags' => $importer['notify-flags'],
2397                                                                 'language'     => $importer['language'],
2398                                                                 'to_name'      => $importer['username'],
2399                                                                 'to_email'     => $importer['email'],
2400                                                                 'uid'          => $importer['importer_uid'],
2401                                                                 'item'         => $datarray,
2402                                                                 'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
2403                                                                 'source_name'  => stripslashes($datarray['author-name']),
2404                                                                 'source_link'  => $datarray['author-link'],
2405                                                                 'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
2406                                                                         ? $importer['thumb'] : $datarray['author-avatar']),
2407                                                                 'verb'         => ACTIVITY_POST,
2408                                                                 'otype'        => 'item',
2409                                                                 'parent'       => $parent,
2410
2411                                                         ));
2412
2413                                                 }
2414                                         }
2415
2416                                         return 0;
2417                                         // NOTREACHED
2418                                 }
2419                         }
2420                         else {
2421
2422                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
2423
2424                                 $item_id  = $item->get_id();
2425                                 $datarray = get_atom_elements($feed,$item);
2426
2427                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2428                                         dbesc($item_id),
2429                                         intval($importer['importer_uid'])
2430                                 );
2431
2432                                 // Update content if 'updated' changes
2433
2434                                 if(count($r)) {
2435                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2436                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2437                                                         dbesc($datarray['title']),
2438                                                         dbesc($datarray['body']),
2439                                                         dbesc($datarray['tag']),
2440                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2441                                                         dbesc($item_id),
2442                                                         intval($importer['importer_uid'])
2443                                                 );
2444                                         }
2445
2446                                         // update last-child if it changes
2447
2448                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2449                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
2450                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
2451                                                         dbesc(datetime_convert()),
2452                                                         dbesc($parent_uri),
2453                                                         intval($importer['importer_uid'])
2454                                                 );
2455                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2456                                                         intval($allow[0]['data']),
2457                                                         dbesc(datetime_convert()),
2458                                                         dbesc($item_id),
2459                                                         intval($importer['importer_uid'])
2460                                                 );
2461                                         }
2462                                         continue;
2463                                 }
2464
2465                                 $datarray['parent-uri'] = $parent_uri;
2466                                 $datarray['uid'] = $importer['importer_uid'];
2467                                 $datarray['contact-id'] = $importer['id'];
2468                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
2469                                         $datarray['type'] = 'activity';
2470                                         $datarray['gravity'] = GRAVITY_LIKE;
2471                                         // only one like or dislike per person
2472                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 limit 1",
2473                                                 intval($datarray['uid']),
2474                                                 intval($datarray['contact-id']),
2475                                                 dbesc($datarray['verb'])
2476                                         );
2477                                         if($r && count($r))
2478                                                 continue;
2479
2480                                 }
2481
2482                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2483
2484                                         $xo = parse_xml_string($datarray['object'],false);
2485                                         $xt = parse_xml_string($datarray['target'],false);
2486
2487                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
2488                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
2489                                                         dbesc($xt->id),
2490                                                         intval($importer['importer_uid'])
2491                                                 );
2492                                                 if(! count($r))
2493                                                         continue;
2494
2495                                                 // extract tag, if not duplicate, add to parent item
2496                                                 if($xo->content) {
2497                                                         if(! (stristr($r[0]['tag'],trim($xo->content)))) {
2498                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1",
2499                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
2500                                                                         intval($r[0]['id'])
2501                                                                 );
2502                                                         }
2503                                                 }
2504                                         }
2505                                 }
2506
2507                                 $posted_id = item_store($datarray);
2508
2509                                 // find out if our user is involved in this conversation and wants to be notified.
2510
2511                                 if(!x($datarray['type']) || $datarray['type'] != 'activity') {
2512
2513                                         $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
2514                                                 dbesc($parent_uri),
2515                                                 intval($importer['importer_uid'])
2516                                         );
2517
2518                                         if(count($myconv)) {
2519                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
2520
2521                                                 // first make sure this isn't our own post coming back to us from a wall-to-wall event
2522                                                 if(! link_compare($datarray['author-link'],$importer_url)) {
2523
2524
2525                                                         foreach($myconv as $conv) {
2526
2527                                                                 // now if we find a match, it means we're in this conversation
2528
2529                                                                 if(! link_compare($conv['author-link'],$importer_url))
2530                                                                         continue;
2531
2532                                                                 require_once('include/enotify.php');
2533
2534                                                                 $conv_parent = $conv['parent'];
2535
2536                                                                 notification(array(
2537                                                                         'type'         => NOTIFY_COMMENT,
2538                                                                         'notify_flags' => $importer['notify-flags'],
2539                                                                         'language'     => $importer['language'],
2540                                                                         'to_name'      => $importer['username'],
2541                                                                         'to_email'     => $importer['email'],
2542                                                                         'uid'          => $importer['importer_uid'],
2543                                                                         'item'         => $datarray,
2544                                                                         'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
2545                                                                         'source_name'  => stripslashes($datarray['author-name']),
2546                                                                         'source_link'  => $datarray['author-link'],
2547                                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
2548                                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
2549                                                                         'verb'         => ACTIVITY_POST,
2550                                                                         'otype'        => 'item',
2551                                                                         'parent'       => $conv_parent,
2552
2553                                                                 ));
2554
2555                                                                 // only send one notification
2556                                                                 break;
2557                                                         }
2558                                                 }
2559                                         }
2560                                 }
2561                                 continue;
2562                         }
2563                 }
2564
2565                 else {
2566
2567                         // Head post of a conversation. Have we seen it? If not, import it.
2568
2569
2570                         $item_id  = $item->get_id();
2571                         $datarray = get_atom_elements($feed,$item);
2572
2573                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
2574                                 $ev = bbtoevent($datarray['body']);
2575                                 if(x($ev,'desc') && x($ev,'start')) {
2576                                         $ev['cid'] = $importer['id'];
2577                                         $ev['uid'] = $importer['uid'];
2578                                         $ev['uri'] = $item_id;
2579                                         $ev['edited'] = $datarray['edited'];
2580                                         $ev['private'] = $datarray['private'];
2581
2582                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2583                                                 dbesc($item_id),
2584                                                 intval($importer['uid'])
2585                                         );
2586                                         if(count($r))
2587                                                 $ev['id'] = $r[0]['id'];
2588                                         $xyz = event_store($ev);
2589                                         continue;
2590                                 }
2591                         }
2592
2593                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2594                                 dbesc($item_id),
2595                                 intval($importer['importer_uid'])
2596                         );
2597
2598                         // Update content if 'updated' changes
2599
2600                         if(count($r)) {
2601                                 if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2602                                         $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2603                                                 dbesc($datarray['title']),
2604                                                 dbesc($datarray['body']),
2605                                                 dbesc($datarray['tag']),
2606                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2607                                                 dbesc($item_id),
2608                                                 intval($importer['importer_uid'])
2609                                         );
2610                                 }
2611
2612                                 // update last-child if it changes
2613
2614                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2615                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
2616                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2617                                                 intval($allow[0]['data']),
2618                                                 dbesc(datetime_convert()),
2619                                                 dbesc($item_id),
2620                                                 intval($importer['importer_uid'])
2621                                         );
2622                                 }
2623                                 continue;
2624                         }
2625
2626                         // This is my contact on another system, but it's really me.
2627                         // Turn this into a wall post.
2628
2629                         if($importer['remote_self'])
2630                                 $datarray['wall'] = 1;
2631
2632                         $datarray['parent-uri'] = $item_id;
2633                         $datarray['uid'] = $importer['importer_uid'];
2634                         $datarray['contact-id'] = $importer['id'];
2635
2636                         if(! link_compare($datarray['owner-link'],$contact['url'])) {
2637                                 // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
2638                                 // but otherwise there's a possible data mixup on the sender's system.
2639                                 // the tgroup delivery code called from item_store will correct it if it's a forum,
2640                                 // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
2641                                 logger('local_delivery: Correcting item owner.', LOGGER_DEBUG);
2642                                 $datarray['owner-name']   = $importer['senderName'];
2643                                 $datarray['owner-link']   = $importer['url'];
2644                                 $datarray['owner-avatar'] = $importer['thumb'];
2645                         }
2646
2647                         $r = item_store($datarray);
2648                         continue;
2649                 }
2650         }
2651
2652         return 0;
2653         // NOTREACHED
2654
2655 }
2656
2657
2658 function new_follower($importer,$contact,$datarray,$item,$sharing = false) {
2659         $url = notags(trim($datarray['author-link']));
2660         $name = notags(trim($datarray['author-name']));
2661         $photo = notags(trim($datarray['author-avatar']));
2662
2663         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
2664         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
2665                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
2666
2667         if(is_array($contact)) {
2668                 if(($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
2669                         || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
2670                         $r = q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
2671                                 intval(CONTACT_IS_FRIEND),
2672                                 intval($contact['id']),
2673                                 intval($importer['uid'])
2674                         );
2675                 }
2676                 // send email notification to owner?
2677         }
2678         else {
2679
2680                 // create contact record
2681
2682                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
2683                         `blocked`, `readonly`, `pending`, `writable` )
2684                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
2685                         intval($importer['uid']),
2686                         dbesc(datetime_convert()),
2687                         dbesc($url),
2688                         dbesc(normalise_link($url)),
2689                         dbesc($name),
2690                         dbesc($nick),
2691                         dbesc($photo),
2692                         dbesc(($sharing) ? NETWORK_ZOT : NETWORK_OSTATUS),
2693                         intval(($sharing) ? CONTACT_IS_SHARING : CONTACT_IS_FOLLOWER)
2694                 );
2695                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
2696                                 intval($importer['uid']),
2697                                 dbesc($url)
2698                 );
2699                 if(count($r))
2700                                 $contact_record = $r[0];
2701
2702                 // create notification
2703                 $hash = random_string();
2704
2705                 if(is_array($contact_record)) {
2706                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
2707                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
2708                                 intval($importer['uid']),
2709                                 intval($contact_record['id']),
2710                                 dbesc($hash),
2711                                 dbesc(datetime_convert())
2712                         );
2713                 }
2714                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
2715                         intval($importer['uid'])
2716                 );
2717                 $a = get_app();
2718                 if(count($r)) {
2719                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) && ($r[0]['page-flags'] == PAGE_NORMAL)) {
2720                                 $email_tpl = get_intltext_template('follow_notify_eml.tpl');
2721                                 $email = replace_macros($email_tpl, array(
2722                                         '$requestor' => ((strlen($name)) ? $name : t('[Name Withheld]')),
2723                                         '$url' => $url,
2724                                         '$myname' => $r[0]['username'],
2725                                         '$siteurl' => $a->get_baseurl(),
2726                                         '$sitename' => $a->config['sitename']
2727                                 ));
2728                                 $res = mail($r[0]['email'],
2729                                         (($sharing) ? t('A new person is sharing with you at ') : t("You have a new follower at ")) . $a->config['sitename'],
2730                                         $email,
2731                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
2732                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
2733                                         . 'Content-transfer-encoding: 8bit' );
2734
2735                         }
2736                 }
2737         }
2738 }
2739
2740 function lose_follower($importer,$contact,$datarray,$item) {
2741
2742         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
2743                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
2744                         intval(CONTACT_IS_SHARING),
2745                         intval($contact['id'])
2746                 );
2747         }
2748         else {
2749                 contact_remove($contact['id']);
2750         }
2751 }
2752
2753 function lose_sharer($importer,$contact,$datarray,$item) {
2754
2755         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
2756                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
2757                         intval(CONTACT_IS_FOLLOWER),
2758                         intval($contact['id'])
2759                 );
2760         }
2761         else {
2762                 contact_remove($contact['id']);
2763         }
2764 }
2765
2766
2767 function subscribe_to_hub($url,$importer,$contact,$hubmode = 'subscribe') {
2768
2769         if(is_array($importer)) {
2770                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
2771                         intval($importer['uid'])
2772                 );
2773         }
2774
2775         // Diaspora has different message-ids in feeds than they do
2776         // through the direct Diaspora protocol. If we try and use
2777         // the feed, we'll get duplicates. So don't.
2778
2779         if((! count($r)) || $contact['network'] === NETWORK_DIASPORA)
2780                 return;
2781
2782         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
2783
2784         // Use a single verify token, even if multiple hubs
2785
2786         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
2787
2788         $params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
2789
2790         logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
2791
2792         if(! strlen($contact['hub-verify'])) {
2793                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
2794                         dbesc($verify_token),
2795                         intval($contact['id'])
2796                 );
2797         }
2798
2799         post_url($url,$params);
2800         return;
2801
2802 }
2803
2804
2805 function atom_author($tag,$name,$uri,$h,$w,$photo) {
2806         $o = '';
2807         if(! $tag)
2808                 return $o;
2809         $name = xmlify($name);
2810         $uri = xmlify($uri);
2811         $h = intval($h);
2812         $w = intval($w);
2813         $photo = xmlify($photo);
2814
2815
2816         $o .= "<$tag>\r\n";
2817         $o .= "<name>$name</name>\r\n";
2818         $o .= "<uri>$uri</uri>\r\n";
2819         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
2820         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
2821
2822         call_hooks('atom_author', $o);
2823
2824         $o .= "</$tag>\r\n";
2825         return $o;
2826 }
2827
2828 function atom_entry($item,$type,$author,$owner,$comment = false) {
2829
2830         $a = get_app();
2831
2832         if(! $item['parent'])
2833                 return;
2834
2835         if($item['deleted'])
2836                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
2837
2838
2839         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
2840                 $body = fix_private_photos($item['body'],$owner['uid']);
2841         else
2842                 $body = $item['body'];
2843
2844
2845         $o = "\r\n\r\n<entry>\r\n";
2846
2847         if(is_array($author))
2848                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
2849         else
2850                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
2851         if(strlen($item['owner-name']))
2852                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
2853
2854         if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']))
2855                 $o .= '<thr:in-reply-to ref="' . xmlify($item['parent-uri']) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['parent']) . '" />' . "\r\n";
2856
2857         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
2858         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
2859         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
2860         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
2861         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
2862         $o .= '<content type="' . $type . '" >' . xmlify((($type === 'html') ? bbcode($body) : $body)) . '</content>' . "\r\n";
2863         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
2864         if($comment)
2865                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
2866
2867         if($item['location']) {
2868                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
2869                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
2870         }
2871
2872         if($item['coord'])
2873                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
2874
2875         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
2876                 $o .= '<dfrn:private>1</dfrn:private>' . "\r\n";
2877
2878         if($item['extid'])
2879                 $o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
2880         if($item['bookmark'])
2881                 $o .= '<dfrn:bookmark>true</dfrn:bookmark>' . "\r\n";
2882
2883         if($item['app'])
2884                 $o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
2885
2886         if($item['guid'])
2887                 $o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
2888
2889         if($item['signed_text']) {
2890                 $sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
2891                 $o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
2892         }
2893
2894         $verb = construct_verb($item);
2895         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
2896         $actobj = construct_activity_object($item);
2897         if(strlen($actobj))
2898                 $o .= $actobj;
2899         $actarg = construct_activity_target($item);
2900         if(strlen($actarg))
2901                 $o .= $actarg;
2902
2903         $tags = item_getfeedtags($item);
2904         if(count($tags)) {
2905                 foreach($tags as $t) {
2906                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
2907                 }
2908         }
2909
2910         $o .= item_getfeedattach($item);
2911
2912         $mentioned = get_mentions($item);
2913         if($mentioned)
2914                 $o .= $mentioned;
2915
2916         call_hooks('atom_entry', $o);
2917
2918         $o .= '</entry>' . "\r\n";
2919
2920         return $o;
2921 }
2922
2923 function fix_private_photos($s,$uid) {
2924         $a = get_app();
2925         logger('fix_private_photos');
2926
2927         if(preg_match("/\[img\](.*?)\[\/img\]/is",$s,$matches)) {
2928                 $image = $matches[1];
2929                 logger('fix_private_photos: found photo ' . $image);
2930                 if(stristr($image ,$a->get_baseurl() . '/photo/')) {
2931                         $i = basename($image);
2932                         $i = str_replace('.jpg','',$i);
2933                         $x = strpos($i,'-');
2934                         if($x) {
2935                                 $res = substr($i,$x+1);
2936                                 $i = substr($i,0,$x);
2937                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
2938                                         dbesc($i),
2939                                         intval($res),
2940                                         intval($uid)
2941                                 );
2942                                 if(count($r)) {
2943                                         logger('replacing photo');
2944                                         $s = str_replace($image, 'data:image/jpg;base64,' . base64_encode($r[0]['data']), $s);
2945                                 }
2946                         }
2947                         logger('fix_private_photos: replaced: ' . $s, LOGGER_DATA);
2948                 }
2949         }
2950         return($s);
2951 }
2952
2953
2954
2955 function item_getfeedtags($item) {
2956         $ret = array();
2957         $matches = false;
2958         $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
2959         if($cnt) {
2960                 for($x = 0; $x < $cnt; $x ++) {
2961                         if($matches[1][$x])
2962                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
2963                 }
2964         }
2965         $matches = false;
2966         $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
2967         if($cnt) {
2968                 for($x = 0; $x < $cnt; $x ++) {
2969                         if($matches[1][$x])
2970                                 $ret[] = array('@',$matches[1][$x], $matches[2][$x]);
2971                 }
2972         }
2973         return $ret;
2974 }
2975
2976 function item_getfeedattach($item) {
2977         $ret = '';
2978         $arr = explode(',',$item['attach']);
2979         if(count($arr)) {
2980                 foreach($arr as $r) {
2981                         $matches = false;
2982                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
2983                         if($cnt) {
2984                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
2985                                 if(intval($matches[2]))
2986                                         $ret .= 'length="' . intval($matches[2]) . '" ';
2987                                 if($matches[4] !== ' ')
2988                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
2989                                 $ret .= ' />' . "\r\n";
2990                         }
2991                 }
2992         }
2993         return $ret;
2994 }
2995
2996
2997
2998 function item_expire($uid,$days) {
2999
3000         if((! $uid) || (! $days))
3001                 return;
3002
3003         $r = q("SELECT * FROM `item`
3004                 WHERE `uid` = %d
3005                 AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY
3006                 AND `id` = `parent`
3007                 AND `deleted` = 0",
3008                 intval($uid),
3009                 intval($days)
3010         );
3011
3012         if(! count($r))
3013                 return;
3014
3015         $expire_items = get_pconfig($uid, 'expire','items');
3016         $expire_items = (($expire_items===false)?1:intval($expire_items)); // default if not set: 1
3017
3018         $expire_notes = get_pconfig($uid, 'expire','notes');
3019         $expire_notes = (($expire_notes===false)?1:intval($expire_notes)); // default if not set: 1
3020
3021         $expire_starred = get_pconfig($uid, 'expire','starred');
3022         $expire_starred = (($expire_starred===false)?1:intval($expire_starred)); // default if not set: 1
3023
3024         $expire_photos = get_pconfig($uid, 'expire','photos');
3025         $expire_photos = (($expire_photos===false)?0:intval($expire_photos)); // default if not set: 0
3026
3027         logger('expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
3028
3029         foreach($r as $item) {
3030
3031                 // don't expire filed items
3032
3033                 if(strpos($item['file'],'[') !== false)
3034                         continue;
3035
3036                 // Only expire posts, not photos and photo comments
3037
3038                 if($expire_photos==0 && strlen($item['resource-id']))
3039                         continue;
3040                 if($expire_starred==0 && intval($item['starred']))
3041                         continue;
3042                 if($expire_notes==0 && $item['type']=='note')
3043                         continue;
3044                 if($expire_items==0 && $item['type']!='note')
3045                         continue;
3046
3047                 drop_item($item['id'],false);
3048         }
3049
3050         proc_run('php',"include/notifier.php","expire","$uid");
3051
3052 }
3053
3054
3055 function drop_items($items) {
3056         $uid = 0;
3057
3058         if(! local_user() && ! remote_user())
3059                 return;
3060
3061         if(count($items)) {
3062                 foreach($items as $item) {
3063                         $owner = drop_item($item,false);
3064                         if($owner && ! $uid)
3065                                 $uid = $owner;
3066                 }
3067         }
3068
3069         // multiple threads may have been deleted, send an expire notification
3070
3071         if($uid)
3072                 proc_run('php',"include/notifier.php","expire","$uid");
3073 }
3074
3075
3076 function drop_item($id,$interactive = true) {
3077
3078         $a = get_app();
3079
3080         // locate item to be deleted
3081
3082         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
3083                 intval($id)
3084         );
3085
3086         if(! count($r)) {
3087                 if(! $interactive)
3088                         return 0;
3089                 notice( t('Item not found.') . EOL);
3090                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3091         }
3092
3093         $item = $r[0];
3094
3095         $owner = $item['uid'];
3096
3097         // check if logged in user is either the author or owner of this item
3098
3099         if((local_user() == $item['uid']) || (remote_user() == $item['contact-id'])) {
3100
3101                 // delete the item
3102
3103                 $r = q("UPDATE `item` SET `deleted` = 1, `title` = '', `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
3104                         dbesc(datetime_convert()),
3105                         dbesc(datetime_convert()),
3106                         intval($item['id'])
3107                 );
3108
3109                 // clean up categories and tags so they don't end up as orphans
3110
3111                 $matches = false;
3112                 $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
3113                 if($cnt) {
3114                         foreach($matches as $mtch) {
3115                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
3116                         }
3117                 }
3118
3119                 $matches = false;
3120
3121                 $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
3122                 if($cnt) {
3123                         foreach($matches as $mtch) {
3124                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
3125                         }
3126                 }
3127
3128                 // If item is a link to a photo resource, nuke all the associated photos
3129                 // (visitors will not have photo resources)
3130                 // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
3131                 // generate a resource-id and therefore aren't intimately linked to the item.
3132
3133                 if(strlen($item['resource-id'])) {
3134                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
3135                                 dbesc($item['resource-id']),
3136                                 intval($item['uid'])
3137                         );
3138                         // ignore the result
3139                 }
3140
3141                 // If item is a link to an event, nuke the event record.
3142
3143                 if(intval($item['event-id'])) {
3144                         q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
3145                                 intval($item['event-id']),
3146                                 intval($item['uid'])
3147                         );
3148                         // ignore the result
3149                 }
3150
3151                 // clean up item_id and sign meta-data tables
3152
3153                 $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
3154                         intval($item['id']),
3155                         intval($item['uid'])
3156                 );
3157
3158                 $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
3159                         intval($item['id']),
3160                         intval($item['uid'])
3161                 );
3162
3163                 // If it's the parent of a comment thread, kill all the kids
3164
3165                 if($item['uri'] == $item['parent-uri']) {
3166                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
3167                                 WHERE `parent-uri` = '%s' AND `uid` = %d ",
3168                                 dbesc(datetime_convert()),
3169                                 dbesc(datetime_convert()),
3170                                 dbesc($item['parent-uri']),
3171                                 intval($item['uid'])
3172                         );
3173                         // ignore the result
3174                 }
3175                 else {
3176                         // ensure that last-child is set in case the comment that had it just got wiped.
3177                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
3178                                 dbesc(datetime_convert()),
3179                                 dbesc($item['parent-uri']),
3180                                 intval($item['uid'])
3181                         );
3182                         // who is the last child now?
3183                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
3184                                 dbesc($item['parent-uri']),
3185                                 intval($item['uid'])
3186                         );
3187                         if(count($r)) {
3188                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
3189                                         intval($r[0]['id'])
3190                                 );
3191                         }
3192                 }
3193                 $drop_id = intval($item['id']);
3194
3195                 // send the notification upstream/downstream as the case may be
3196
3197                 if(! $interactive)
3198                         return $owner;
3199
3200                 proc_run('php',"include/notifier.php","drop","$drop_id");
3201                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3202                 //NOTREACHED
3203         }
3204         else {
3205                 if(! $interactive)
3206                         return 0;
3207                 notice( t('Permission denied.') . EOL);
3208                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3209                 //NOTREACHED
3210         }
3211
3212 }