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 require_once('include/Photo.php');
   8
   9
  10 function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
  11
  12
  13         $sitefeed    = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
  14         $public_feed = (($dfrn_id) ? false : true);
  15         $starred     = false;   // not yet implemented, possible security issues
  16         $converse    = false;
  17
  18         if($public_feed && $a->argc > 2) {
  19                 for($x = 2; $x < $a->argc; $x++) {
  20                         if($a->argv[$x] == 'converse')
  21                                 $converse = true;
  22                         if($a->argv[$x] == 'starred')
  23                                 $starred = true;
  24                         if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
  25                                 $category = $a->argv[$x+1];
  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                 require_once('include/security.php');
  80                 $groups = init_groups_visitor($contact['id']);
  81
  82                 if(count($groups)) {
  83                         for($x = 0; $x < count($groups); $x ++)
  84                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  85                         $gs = implode('|', $groups);
  86                 }
  87                 else
  88                         $gs = '<<>>' ; // Impossible to match
  89
  90                 $sql_extra = sprintf("
  91                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
  92                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
  93                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
  94                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
  95                 ",
  96                         intval($contact['id']),
  97                         intval($contact['id']),
  98                         dbesc($gs),
  99                         dbesc($gs)
 100                 );
 101         }
 102
 103         if($public_feed)
 104                 $sort = 'DESC';
 105         else
 106                 $sort = 'ASC';
 107
 108         if(! strlen($last_update))
 109                 $last_update = 'now -30 days';
 110
 111         if(isset($category)) {
 112                 $sql_extra .= file_tag_file_query('item',$category,'category');
 113         }
 114
 115         if($public_feed) {
 116                 if(! $converse)
 117                         $sql_extra .= " AND `contact`.`self` = 1 ";
 118         }
 119
 120         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
 121
 122         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
 123                 `contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
 124                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
 125                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
 126                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
 127                 `sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
 128                 FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 129                 LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
 130                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
 131                 AND `item`.`wall` = 1 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 132                 AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
 133                 $sql_extra
 134                 ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
 135                 intval($owner_id),
 136                 dbesc($check_date),
 137                 dbesc($check_date),
 138                 dbesc($sort)
 139         );
 140
 141         // Will check further below if this actually returned results.
 142         // We will provide an empty feed if that is the case.
 143
 144         $items = $r;
 145
 146         $feed_template = get_markup_template(($dfrn_id) ? 'atom_feed_dfrn.tpl' : 'atom_feed.tpl');
 147
 148         $atom = '';
 149
 150         $hubxml = feed_hublinks();
 151
 152         $salmon = feed_salmonlinks($owner_nick);
 153
 154         $atom .= replace_macros($feed_template, array(
 155                 '$version'      => xmlify(FRIENDICA_VERSION),
 156                 '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 157                 '$feed_title'   => xmlify($owner['name']),
 158                 '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
 159                 '$hub'          => $hubxml,
 160                 '$salmon'       => $salmon,
 161                 '$name'         => xmlify($owner['name']),
 162                 '$profile_page' => xmlify($owner['url']),
 163                 '$photo'        => xmlify($owner['photo']),
 164                 '$thumb'        => xmlify($owner['thumb']),
 165                 '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 166                 '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 167                 '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 168                 '$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : ''),
 169                 '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 170         ));
 171
 172         call_hooks('atom_feed', $atom);
 173
 174         if(! count($items)) {
 175
 176                 call_hooks('atom_feed_end', $atom);
 177
 178                 $atom .= '</feed>' . "\r\n";
 179                 return $atom;
 180         }
 181
 182         foreach($items as $item) {
 183
 184                 // prevent private email from leaking.
 185                 if($item['network'] === NETWORK_MAIL)
 186                         continue;
 187
 188                 // public feeds get html, our own nodes use bbcode
 189
 190                 if($public_feed) {
 191                         $type = 'html';
 192                         // catch any email that's in a public conversation and make sure it doesn't leak
 193                         if($item['private'])
 194                                 continue;
 195                 }
 196                 else {
 197                         $type = 'text';
 198                 }
 199
 200                 $atom .= atom_entry($item,$type,null,$owner,true);
 201         }
 202
 203         call_hooks('atom_feed_end', $atom);
 204
 205         $atom .= '</feed>' . "\r\n";
 206
 207         return $atom;
 208 }
 209
 210
 211 function construct_verb($item) {
 212         if($item['verb'])
 213                 return $item['verb'];
 214         return ACTIVITY_POST;
 215 }
 216
 217 function construct_activity_object($item) {
 218
 219         if($item['object']) {
 220                 $o = '<as:object>' . "\r\n";
 221                 $r = parse_xml_string($item['object'],false);
 222
 223
 224                 if(! $r)
 225                         return '';
 226                 if($r->type)
 227                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 228                 if($r->id)
 229                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 230                 if($r->title)
 231                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 232                 if($r->link) {
 233                         if(substr($r->link,0,1) === '<') {
 234                                 // patch up some facebook "like" activity objects that got stored incorrectly
 235                                 // for a couple of months prior to 9-Jun-2011 and generated bad XML.
 236                                 // we can probably remove this hack here and in the following function in a few months time.
 237                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 238                                         $r->link = str_replace('&','&amp;', $r->link);
 239                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 240                                 $o .= $r->link;
 241                         }
 242                         else
 243                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 244                 }
 245                 if($r->content)
 246                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 247                 $o .= '</as:object>' . "\r\n";
 248                 return $o;
 249         }
 250
 251         return '';
 252 }
 253
 254 function construct_activity_target($item) {
 255
 256         if($item['target']) {
 257                 $o = '<as:target>' . "\r\n";
 258                 $r = parse_xml_string($item['target'],false);
 259                 if(! $r)
 260                         return '';
 261                 if($r->type)
 262                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 263                 if($r->id)
 264                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 265                 if($r->title)
 266                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 267                 if($r->link) {
 268                         if(substr($r->link,0,1) === '<') {
 269                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 270                                         $r->link = str_replace('&','&amp;', $r->link);
 271                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 272                                 $o .= $r->link;
 273                         }
 274                         else
 275                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 276                 }
 277                 if($r->content)
 278                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 279                 $o .= '</as:target>' . "\r\n";
 280                 return $o;
 281         }
 282
 283         return '';
 284 }
 285
 286 /* limit_body_size()
 287  *
 288  *              The purpose of this function is to apply system message length limits to
 289  *              imported messages without including any embedded photos in the length
 290  */
 291 if(! function_exists('limit_body_size')) {
 292 function limit_body_size($body) {
 293
 294         logger('limit_body_size: start', LOGGER_DEBUG);
 295
 296         $maxlen = get_max_import_size();
 297
 298         // If the length of the body, including the embedded images, is smaller
 299         // than the maximum, then don't waste time looking for the images
 300         if($maxlen && (strlen($body) > $maxlen)) {
 301
 302                 logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
 303
 304                 $orig_body = $body;
 305                 $new_body = '';
 306                 $textlen = 0;
 307                 $max_found = false;
 308
 309                 $img_start = strpos($orig_body, '[img');
 310                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 311                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 312                 while(($img_st_close !== false) && ($img_end !== false)) {
 313
 314                         $img_st_close++; // make it point to AFTER the closing bracket
 315                         $img_end += $img_start;
 316                         $img_end += strlen('[/img]');
 317
 318                         if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 319                                 // This is an embedded image
 320
 321                                 if( ($textlen + $img_start) > $maxlen ) {
 322                                         if($textlen < $maxlen) {
 323                                                 logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
 324                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 325                                                 $textlen = $maxlen;
 326                                         }
 327                                 }
 328                                 else {
 329                                         $new_body = $new_body . substr($orig_body, 0, $img_start);
 330                                         $textlen += $img_start;
 331                                 }
 332
 333                                 $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
 334                         }
 335                         else {
 336
 337                                 if( ($textlen + $img_end) > $maxlen ) {
 338                                         if($textlen < $maxlen) {
 339                                                 logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
 340                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 341                                                 $textlen = $maxlen;
 342                                         }
 343                                 }
 344                                 else {
 345                                         $new_body = $new_body . substr($orig_body, 0, $img_end);
 346                                         $textlen += $img_end;
 347                                 }
 348                         }
 349                         $orig_body = substr($orig_body, $img_end);
 350
 351                         if($orig_body === false) // in case the body ends on a closing image tag
 352                                 $orig_body = '';
 353
 354                         $img_start = strpos($orig_body, '[img');
 355                         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 356                         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 357                 }
 358
 359                 if( ($textlen + strlen($orig_body)) > $maxlen) {
 360                         if($textlen < $maxlen) {
 361                                 logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
 362                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 363                                 $textlen = $maxlen;
 364                         }
 365                 }
 366                 else {
 367                         logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
 368                         $new_body = $new_body . $orig_body;
 369                         $textlen += strlen($orig_body);
 370                 }
 371
 372                 return $new_body;
 373         }
 374         else
 375                 return $body;
 376 }}
 377
 378 function title_is_body($title, $body) {
 379
 380         $title = strip_tags($title);
 381         $title = trim($title);
 382         $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
 383         $title = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $title);
 384
 385         $body = strip_tags($body);
 386         $body = trim($body);
 387         $body = html_entity_decode($body, ENT_QUOTES, 'UTF-8');
 388         $body = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $body);
 389
 390         if (strlen($title) < strlen($body))
 391                 $body = substr($body, 0, strlen($title));
 392
 393         if (($title != $body) and (substr($title, -3) == "...")) {
 394                 $pos = strrpos($title, "...");
 395                 if ($pos > 0) {
 396                         $title = substr($title, 0, $pos);
 397                         $body = substr($body, 0, $pos);
 398                 }
 399         }
 400
 401         return($title == $body);
 402 }
 403
 404
 405
 406 function get_atom_elements($feed,$item) {
 407
 408         require_once('library/HTMLPurifier.auto.php');
 409         require_once('include/html2bbcode.php');
 410
 411         $best_photo = array();
 412
 413         $res = array();
 414
 415         $author = $item->get_author();
 416         if($author) {
 417                 $res['author-name'] = unxmlify($author->get_name());
 418                 $res['author-link'] = unxmlify($author->get_link());
 419         }
 420         else {
 421                 $res['author-name'] = unxmlify($feed->get_title());
 422                 $res['author-link'] = unxmlify($feed->get_permalink());
 423         }
 424         $res['uri'] = unxmlify($item->get_id());
 425         $res['title'] = unxmlify($item->get_title());
 426         $res['body'] = unxmlify($item->get_content());
 427         $res['plink'] = unxmlify($item->get_link(0));
 428
 429         // removing the content of the title if its identically to the body
 430         // This helps with auto generated titles e.g. from tumblr
 431         if (title_is_body($res["title"], $res["body"]))
 432                 $res['title'] = "";
 433
 434         if($res['plink'])
 435                 $base_url = implode('/', array_slice(explode('/',$res['plink']),0,3));
 436         else
 437                 $base_url = '';
 438
 439         // look for a photo. We should check media size and find the best one,
 440         // but for now let's just find any author photo
 441
 442         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 443
 444         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 445                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 446                 foreach($base as $link) {
 447                         if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 448                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 449                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 450                         }
 451                 }
 452         }
 453
 454         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 455
 456         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 457                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 458                 if($base && count($base)) {
 459                         foreach($base as $link) {
 460                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 461                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 462                                 if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 463                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 464                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 465                                 }
 466                         }
 467                 }
 468         }
 469
 470         // No photo/profile-link on the item - look at the feed level
 471
 472         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 473                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 474                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 475                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 476                         foreach($base as $link) {
 477                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 478                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 479                                 if(! $res['author-avatar']) {
 480                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 481                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 482                                 }
 483                         }
 484                 }
 485
 486                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 487
 488                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 489                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 490
 491                         if($base && count($base)) {
 492                                 foreach($base as $link) {
 493                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 494                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 495                                         if(! (x($res,'author-avatar'))) {
 496                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 497                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 498                                         }
 499                                 }
 500                         }
 501                 }
 502         }
 503
 504         $apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info');
 505         if($apps && $apps[0]['attribs']['']['source']) {
 506                 $res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source']));
 507                 if($res['app'] === 'web')
 508                         $res['app'] = 'OStatus';
 509         }
 510
 511         // base64 encoded json structure representing Diaspora signature
 512
 513         $dsig = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_signature');
 514         if($dsig) {
 515                 $res['dsprsig'] = unxmlify($dsig[0]['data']);
 516         }
 517
 518         $dguid = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_guid');
 519         if($dguid)
 520                 $res['guid'] = unxmlify($dguid[0]['data']);
 521
 522         $bm = $item->get_item_tags(NAMESPACE_DFRN,'bookmark');
 523         if($bm)
 524                 $res['bookmark'] = ((unxmlify($bm[0]['data']) === 'true') ? 1 : 0);
 525
 526
 527         /**
 528          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 529          */
 530
 531         $have_real_body = false;
 532
 533         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 534         if($rawenv) {
 535                 $have_real_body = true;
 536                 $res['body'] = $rawenv[0]['data'];
 537                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 538                 // make sure nobody is trying to sneak some html tags by us
 539                 $res['body'] = notags(base64url_decode($res['body']));
 540         }
 541
 542
 543         $res['body'] = limit_body_size($res['body']);
 544
 545         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 546         // the content type. Our own network only emits text normally, though it might have been converted to
 547         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 548         // have to assume it is all html and needs to be purified.
 549
 550         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 551         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 552         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 553         // html.
 554
 555         if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) {
 556
 557                 $res['body'] = reltoabs($res['body'],$base_url);
 558
 559                 $res['body'] = html2bb_video($res['body']);
 560
 561                 $res['body'] = oembed_html2bbcode($res['body']);
 562
 563                 $config = HTMLPurifier_Config::createDefault();
 564                 $config->set('Cache.DefinitionImpl', null);
 565
 566                 // we shouldn't need a whitelist, because the bbcode converter
 567                 // will strip out any unsupported tags.
 568
 569                 $purifier = new HTMLPurifier($config);
 570                 $res['body'] = $purifier->purify($res['body']);
 571
 572                 $res['body'] = @html2bbcode($res['body']);
 573
 574
 575         }
 576         elseif(! $have_real_body) {
 577
 578                 // it's not one of our messages and it has no tags
 579                 // so it's probably just text. We'll escape it just to be safe.
 580
 581                 $res['body'] = escape_tags($res['body']);
 582         }
 583
 584
 585         // this tag is obsolete but we keep it for really old sites
 586
 587         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 588         if($allow && $allow[0]['data'] == 1)
 589                 $res['last-child'] = 1;
 590         else
 591                 $res['last-child'] = 0;
 592
 593         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 594         if($private && intval($private[0]['data']) > 0)
 595                 $res['private'] = intval($private[0]['data']);
 596         else
 597                 $res['private'] = 0;
 598
 599         $extid = $item->get_item_tags(NAMESPACE_DFRN,'extid');
 600         if($extid && $extid[0]['data'])
 601                 $res['extid'] = $extid[0]['data'];
 602
 603         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 604         if($rawlocation)
 605                 $res['location'] = unxmlify($rawlocation[0]['data']);
 606
 607
 608         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 609         if($rawcreated)
 610                 $res['created'] = unxmlify($rawcreated[0]['data']);
 611
 612
 613         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 614         if($rawedited)
 615                 $res['edited'] = unxmlify($rawedited[0]['data']);
 616
 617         if((x($res,'edited')) && (! (x($res,'created'))))
 618                 $res['created'] = $res['edited'];
 619
 620         if(! $res['created'])
 621                 $res['created'] = $item->get_date('c');
 622
 623         if(! $res['edited'])
 624                 $res['edited'] = $item->get_date('c');
 625
 626
 627         // Disallow time travelling posts
 628
 629         $d1 = strtotime($res['created']);
 630         $d2 = strtotime($res['edited']);
 631         $d3 = strtotime('now');
 632
 633         if($d1 > $d3)
 634                 $res['created'] = datetime_convert();
 635         if($d2 > $d3)
 636                 $res['edited'] = datetime_convert();
 637
 638         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 639         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 640                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 641         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 642                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 643         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 644                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 645         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 646                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 647
 648         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 649                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 650
 651                 foreach($base as $link) {
 652                         if(!x($res, 'owner-avatar') || !$res['owner-avatar']) {
 653                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 654                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 655                         }
 656                 }
 657         }
 658
 659         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 660         if($rawgeo)
 661                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 662
 663
 664         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 665
 666         // select between supported verbs
 667
 668         if($rawverb) {
 669                 $res['verb'] = unxmlify($rawverb[0]['data']);
 670         }
 671
 672         // translate OStatus unfollow to activity streams if it happened to get selected
 673
 674         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 675                 $res['verb'] = ACTIVITY_UNFOLLOW;
 676
 677         $cats = $item->get_categories();
 678         if($cats) {
 679                 $tag_arr = array();
 680                 foreach($cats as $cat) {
 681                         $term = $cat->get_term();
 682                         if(! $term)
 683                                 $term = $cat->get_label();
 684                         $scheme = $cat->get_scheme();
 685                         if($scheme && $term && stristr($scheme,'X-DFRN:'))
 686                                 $tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
 687                         elseif($term)
 688                                 $tag_arr[] = notags(trim($term));
 689                 }
 690                 $res['tag'] =  implode(',', $tag_arr);
 691         }
 692
 693         $attach = $item->get_enclosures();
 694         if($attach) {
 695                 $att_arr = array();
 696                 foreach($attach as $att) {
 697                         $len   = intval($att->get_length());
 698                         $link  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
 699                         $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
 700                         $type  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
 701                         if(strpos($type,';'))
 702                                 $type = substr($type,0,strpos($type,';'));
 703                         if((! $link) || (strpos($link,'http') !== 0))
 704                                 continue;
 705
 706                         if(! $title)
 707                                 $title = ' ';
 708                         if(! $type)
 709                                 $type = 'application/octet-stream';
 710
 711                         $att_arr[] = '[attach]href="' . $link . '" length="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
 712                 }
 713                 $res['attach'] = implode(',', $att_arr);
 714         }
 715
 716         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 717
 718         if($rawobj) {
 719                 $res['object'] = '<object>' . "\n";
 720                 $child = $rawobj[0]['child'];
 721                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 722                         $res['object-type'] = $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 723                         $res['object'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 724                 }
 725                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 726                         $res['object'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 727                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 728                         $res['object'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 729                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 730                         $res['object'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 731                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 732                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 733                         if(! $body)
 734                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 735                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 736                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 737                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 738
 739                                 $body = html2bb_video($body);
 740
 741                                 $config = HTMLPurifier_Config::createDefault();
 742                                 $config->set('Cache.DefinitionImpl', null);
 743
 744                                 $purifier = new HTMLPurifier($config);
 745                                 $body = $purifier->purify($body);
 746                                 $body = html2bbcode($body);
 747                         }
 748
 749                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 750                 }
 751
 752                 $res['object'] .= '</object>' . "\n";
 753         }
 754
 755         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 756
 757         if($rawobj) {
 758                 $res['target'] = '<target>' . "\n";
 759                 $child = $rawobj[0]['child'];
 760                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 761                         $res['target'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 762                 }
 763                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 764                         $res['target'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 765                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 766                         $res['target'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 767                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 768                         $res['target'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 769                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 770                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 771                         if(! $body)
 772                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 773                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 774                         $res['target'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 775                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 776
 777                                 $body = html2bb_video($body);
 778
 779                                 $config = HTMLPurifier_Config::createDefault();
 780                                 $config->set('Cache.DefinitionImpl', null);
 781
 782                                 $purifier = new HTMLPurifier($config);
 783                                 $body = $purifier->purify($body);
 784                                 $body = html2bbcode($body);
 785                         }
 786
 787                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 788                 }
 789
 790                 $res['target'] .= '</target>' . "\n";
 791         }
 792
 793         // This is some experimental stuff. By now retweets are shown with "RT:"
 794         // But: There is data so that the message could be shown similar to native retweets
 795         // There is some better way to parse this array - but it didn't worked for me.
 796         $child = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://activitystrea.ms/spec/1.0/"][object][0]["child"];
 797         if (is_array($child)) {
 798                 logger('get_atom_elements: Looking for status.net repeated message');
 799
 800                 $message = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["content"][0]["data"];
 801                 $orig_uri = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["id"][0]["data"];
 802                 $author = $child[SIMPLEPIE_NAMESPACE_ATOM_10]["author"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10];
 803                 $uri = $author["uri"][0]["data"];
 804                 $name = $author["name"][0]["data"];
 805                 $avatar = @array_shift($author["link"][2]["attribs"]);
 806                 $avatar = $avatar["href"];
 807
 808                 if (($name != "") and ($uri != "") and ($avatar != "") and ($message != "")) {
 809                         logger('get_atom_elements: fixing sender of repeated message.');
 810
 811                         if (intval(get_config('system','new_share'))) {
 812                                 $prefix = "[share author='".str_replace("'", "&#039;",$name).
 813                                                 "' profile='".$uri.
 814                                                 "' avatar='".$avatar.
 815                                                 "' link='".$orig_uri."']";
 816
 817                                 $res["body"] = $prefix.html2bbcode($message)."[/share]";
 818                         } else {
 819                                 $res["owner-name"] = $res["author-name"];
 820                                 $res["owner-link"] = $res["author-link"];
 821                                 $res["owner-avatar"] = $res["author-avatar"];
 822
 823                                 $res["author-name"] = $name;
 824                                 $res["author-link"] = $uri;
 825                                 $res["author-avatar"] = $avatar;
 826
 827                                 $res["body"] = html2bbcode($message);
 828                         }
 829                 }
 830         }
 831
 832         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 833
 834         call_hooks('parse_atom', $arr);
 835
 836         //if (($res["title"] != "") or (strpos($res["body"], "RT @") > 0)) {
 837         //if (strpos($res["body"], "RT @") !== false) {
 838         //      $debugfile = tempnam("/home/ike/log", "item-res2-");
 839         //      file_put_contents($debugfile, serialize($arr));
 840         //}
 841
 842         return $res;
 843 }
 844
 845 function encode_rel_links($links) {
 846         $o = '';
 847         if(! ((is_array($links)) && (count($links))))
 848                 return $o;
 849         foreach($links as $link) {
 850                 $o .= '<link ';
 851                 if($link['attribs']['']['rel'])
 852                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
 853                 if($link['attribs']['']['type'])
 854                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
 855                 if($link['attribs']['']['href'])
 856                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
 857                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
 858                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
 859                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
 860                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
 861                 $o .= ' />' . "\n" ;
 862         }
 863         return xmlify($o);
 864 }
 865
 866
 867
 868 function item_store($arr,$force_parent = false) {
 869
 870         // If a Diaspora signature structure was passed in, pull it out of the
 871         // item array and set it aside for later storage.
 872
 873         $dsprsig = null;
 874         if(x($arr,'dsprsig')) {
 875                 $dsprsig = json_decode(base64_decode($arr['dsprsig']));
 876                 unset($arr['dsprsig']);
 877         }
 878
 879         if(x($arr, 'gravity'))
 880                 $arr['gravity'] = intval($arr['gravity']);
 881         elseif($arr['parent-uri'] === $arr['uri'])
 882                 $arr['gravity'] = 0;
 883         elseif(activity_match($arr['verb'],ACTIVITY_POST))
 884                 $arr['gravity'] = 6;
 885         else
 886                 $arr['gravity'] = 6;   // extensible catchall
 887
 888         if(! x($arr,'type'))
 889                 $arr['type']      = 'remote';
 890
 891         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
 892
 893         if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
 894                 $arr['body'] = strip_tags($arr['body']);
 895
 896
 897         if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
 898                 require_once('library/langdet/Text/LanguageDetect.php');
 899                 $naked_body = preg_replace('/\[(.+?)\]/','',$arr['body']);
 900                 $l = new Text_LanguageDetect;
 901                 //$lng = $l->detectConfidence($naked_body);
 902                 //$arr['postopts'] = (($lng['language']) ? 'lang=' . $lng['language'] . ';' . $lng['confidence'] : '');
 903                 $lng = $l->detect($naked_body, 3);
 904
 905                 if (sizeof($lng) > 0) {
 906                         $postopts = "";
 907
 908                         foreach ($lng as $language => $score) {
 909                                 if ($postopts == "")
 910                                         $postopts = "lang=";
 911                                 else
 912                                         $postopts .= ":";
 913
 914                                 $postopts .= $language.";".$score;
 915                         }
 916                         $arr['postopts'] = $postopts;
 917                 }
 918         }
 919
 920         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
 921         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
 922         $arr['extid']         = ((x($arr,'extid'))         ? notags(trim($arr['extid']))         : '');
 923         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
 924         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
 925         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
 926         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
 927         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
 928         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
 929         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
 930         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
 931         $arr['commented']     = datetime_convert();
 932         $arr['received']      = datetime_convert();
 933         $arr['changed']       = datetime_convert();
 934         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
 935         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
 936         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
 937         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
 938         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
 939         $arr['deleted']       = 0;
 940         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
 941         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
 942         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
 943         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
 944         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
 945         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
 946         $arr['plink']         = ((x($arr,'plink'))         ? notags(trim($arr['plink']))         : '');
 947         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
 948         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
 949         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
 950         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
 951         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
 952         $arr['bookmark']      = ((x($arr,'bookmark'))      ? intval($arr['bookmark'])            : 0 );
 953         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
 954         $arr['tag']           = ((x($arr,'tag'))           ? notags(trim($arr['tag']))           : '');
 955         $arr['attach']        = ((x($arr,'attach'))        ? notags(trim($arr['attach']))        : '');
 956         $arr['app']           = ((x($arr,'app'))           ? notags(trim($arr['app']))           : '');
 957         $arr['origin']        = ((x($arr,'origin'))        ? intval($arr['origin'])              : 0 );
 958         $arr['guid']          = ((x($arr,'guid'))          ? notags(trim($arr['guid']))          : get_guid());
 959
 960
 961         $arr['thr-parent'] = $arr['parent-uri'];
 962         if($arr['parent-uri'] === $arr['uri']) {
 963                 $parent_id = 0;
 964                 $parent_deleted = 0;
 965                 $allow_cid = $arr['allow_cid'];
 966                 $allow_gid = $arr['allow_gid'];
 967                 $deny_cid  = $arr['deny_cid'];
 968                 $deny_gid  = $arr['deny_gid'];
 969         }
 970         else {
 971
 972                 // find the parent and snarf the item id and ACL's
 973                 // and anything else we need to inherit
 974
 975                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
 976                         dbesc($arr['parent-uri']),
 977                         intval($arr['uid'])
 978                 );
 979
 980                 if(count($r)) {
 981
 982                         // is the new message multi-level threaded?
 983                         // even though we don't support it now, preserve the info
 984                         // and re-attach to the conversation parent.
 985
 986                         if($r[0]['uri'] != $r[0]['parent-uri']) {
 987                                 $arr['parent-uri'] = $r[0]['parent-uri'];
 988                                 $z = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `parent-uri` = '%s' AND `uid` = %d
 989                                         ORDER BY `id` ASC LIMIT 1",
 990                                         dbesc($r[0]['parent-uri']),
 991                                         dbesc($r[0]['parent-uri']),
 992                                         intval($arr['uid'])
 993                                 );
 994                                 if($z && count($z))
 995                                         $r = $z;
 996                         }
 997
 998                         $parent_id      = $r[0]['id'];
 999                         $parent_deleted = $r[0]['deleted'];
1000                         $allow_cid      = $r[0]['allow_cid'];
1001                         $allow_gid      = $r[0]['allow_gid'];
1002                         $deny_cid       = $r[0]['deny_cid'];
1003                         $deny_gid       = $r[0]['deny_gid'];
1004                         $arr['wall']    = $r[0]['wall'];
1005
1006                         // if the parent is private, force privacy for the entire conversation
1007                         // This differs from the above settings as it subtly allows comments from
1008                         // email correspondents to be private even if the overall thread is not.
1009
1010                         if($r[0]['private'])
1011                                 $arr['private'] = $r[0]['private'];
1012
1013                         // Edge case. We host a public forum that was originally posted to privately.
1014                         // The original author commented, but as this is a comment, the permissions
1015                         // weren't fixed up so it will still show the comment as private unless we fix it here.
1016
1017                         if((intval($r[0]['forum_mode']) == 1) && (! $r[0]['private']))
1018                                 $arr['private'] = 0;
1019                 }
1020                 else {
1021
1022                         // Allow one to see reply tweets from status.net even when
1023                         // we don't have or can't see the original post.
1024
1025                         if($force_parent) {
1026                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
1027                                 $parent_id = 0;
1028                                 $arr['parent-uri'] = $arr['uri'];
1029                                 $arr['gravity'] = 0;
1030                         }
1031                         else {
1032                                 logger('item_store: item parent was not found - ignoring item');
1033                                 return 0;
1034                         }
1035
1036                         $parent_deleted = 0;
1037                 }
1038         }
1039
1040         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1041                 dbesc($arr['uri']),
1042                 intval($arr['uid'])
1043         );
1044         if($r && count($r)) {
1045                 logger('item-store: duplicate item ignored. ' . print_r($arr,true));
1046                 return 0;
1047         }
1048
1049         call_hooks('post_remote',$arr);
1050
1051         if(x($arr,'cancel')) {
1052                 logger('item_store: post cancelled by plugin.');
1053                 return 0;
1054         }
1055
1056         dbesc_array($arr);
1057
1058         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
1059
1060         $r = dbq("INSERT INTO `item` (`"
1061                         . implode("`, `", array_keys($arr))
1062                         . "`) VALUES ('"
1063                         . implode("', '", array_values($arr))
1064                         . "')" );
1065
1066         // find the item we just created
1067
1068         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC ",
1069                 $arr['uri'],           // already dbesc'd
1070                 intval($arr['uid'])
1071         );
1072
1073         if(count($r)) {
1074                 $current_post = $r[0]['id'];
1075                 logger('item_store: created item ' . $current_post);
1076         }
1077         else {
1078                 logger('item_store: could not locate created item');
1079                 return 0;
1080         }
1081         if(count($r) > 1) {
1082                 logger('item_store: duplicated post occurred. Removing duplicates.');
1083                 q("DELETE FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `id` != %d ",
1084                         $arr['uri'],
1085                         intval($arr['uid']),
1086                         intval($current_post)
1087                 );
1088         }
1089
1090         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
1091                 $parent_id = $current_post;
1092
1093         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
1094                 $private = 1;
1095         else
1096                 $private = $arr['private'];
1097
1098         // Set parent id - and also make sure to inherit the parent's ACL's.
1099
1100         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
1101                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d LIMIT 1",
1102                 intval($parent_id),
1103                 dbesc($allow_cid),
1104                 dbesc($allow_gid),
1105                 dbesc($deny_cid),
1106                 dbesc($deny_gid),
1107                 intval($private),
1108                 intval($parent_deleted),
1109                 intval($current_post)
1110         );
1111
1112         $arr['id'] = $current_post;
1113         $arr['parent'] = $parent_id;
1114         $arr['allow_cid'] = $allow_cid;
1115         $arr['allow_gid'] = $allow_gid;
1116         $arr['deny_cid'] = $deny_cid;
1117         $arr['deny_gid'] = $deny_gid;
1118         $arr['private'] = $private;
1119         $arr['deleted'] = $parent_deleted;
1120         call_hooks('post_remote_end',$arr);
1121
1122         // update the commented timestamp on the parent
1123
1124         q("UPDATE `item` set `commented` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
1125                 dbesc(datetime_convert()),
1126                 dbesc(datetime_convert()),
1127                 intval($parent_id)
1128         );
1129
1130         if($dsprsig) {
1131                 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1132                         intval($current_post),
1133                         dbesc($dsprsig->signed_text),
1134                         dbesc($dsprsig->signature),
1135                         dbesc($dsprsig->signer)
1136                 );
1137         }
1138
1139
1140         /**
1141          * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
1142          */
1143
1144         if($arr['last-child']) {
1145                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
1146                         dbesc($arr['uri']),
1147                         intval($arr['uid']),
1148                         intval($current_post)
1149                 );
1150         }
1151
1152         tag_deliver($arr['uid'],$current_post);
1153
1154         return $current_post;
1155 }
1156
1157 function get_item_contact($item,$contacts) {
1158         if(! count($contacts) || (! is_array($item)))
1159                 return false;
1160         foreach($contacts as $contact) {
1161                 if($contact['id'] == $item['contact-id']) {
1162                         return $contact;
1163                         break; // NOTREACHED
1164                 }
1165         }
1166         return false;
1167 }
1168
1169
1170 function tag_deliver($uid,$item_id) {
1171
1172         // look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1173
1174         $a = get_app();
1175
1176         $mention = false;
1177
1178         $u = q("select * from user where uid = %d limit 1",
1179                 intval($uid)
1180         );
1181         if(! count($u))
1182                 return;
1183
1184         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1185         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1186
1187
1188         $i = q("select * from item where id = %d and uid = %d limit 1",
1189                 intval($item_id),
1190                 intval($uid)
1191         );
1192         if(! count($i))
1193                 return;
1194
1195         $item = $i[0];
1196
1197         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1198
1199         // Diaspora uses their own hardwired link URL in @-tags
1200         // instead of the one we supply with webfinger
1201
1202         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1203
1204         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1205         if($cnt) {
1206                 foreach($matches as $mtch) {
1207                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1208                                 $mention = true;
1209                                 logger('tag_deliver: mention found: ' . $mtch[2]);
1210                         }
1211                 }
1212         }
1213
1214         if(! $mention)
1215                 return;
1216
1217         // send a notification
1218
1219         // use a local photo if we have one
1220
1221         $r = q("select * from contact where uid = %d and nurl = '%s' limit 1",
1222                 intval($u[0]['uid']),
1223                 dbesc(normalise_link($item['author-link']))
1224         );
1225         $photo = (($r && count($r)) ? $r[0]['thumb'] : $item['author-avatar']);
1226
1227
1228         require_once('include/enotify.php');
1229         notification(array(
1230                 'type'         => NOTIFY_TAGSELF,
1231                 'notify_flags' => $u[0]['notify-flags'],
1232                 'language'     => $u[0]['language'],
1233                 'to_name'      => $u[0]['username'],
1234                 'to_email'     => $u[0]['email'],
1235                 'uid'          => $u[0]['uid'],
1236                 'item'         => $item,
1237                 'link'         => $a->get_baseurl() . '/display/' . $u[0]['nickname'] . '/' . $item['id'],
1238                 'source_name'  => $item['author-name'],
1239                 'source_link'  => $item['author-link'],
1240                 'source_photo' => $photo,
1241                 'verb'         => ACTIVITY_TAG,
1242                 'otype'        => 'item'
1243         ));
1244
1245
1246         $arr = array('item' => $item, 'user' => $u[0], 'contact' => $r[0]);
1247
1248         call_hooks('tagged', $arr);
1249
1250         if((! $community_page) && (! $prvgroup))
1251                 return;
1252
1253
1254         // tgroup delivery - setup a second delivery chain
1255         // prevent delivery looping - only proceed
1256         // if the message originated elsewhere and is a top-level post
1257
1258         if(($item['wall']) || ($item['origin']) || ($item['id'] != $item['parent']))
1259                 return;
1260
1261         // now change this copy of the post to a forum head message and deliver to all the tgroup members
1262
1263
1264         $c = q("select name, url, thumb from contact where self = 1 and uid = %d limit 1",
1265                 intval($u[0]['uid'])
1266         );
1267         if(! count($c))
1268                 return;
1269
1270         // also reset all the privacy bits to the forum default permissions
1271
1272         $private = ($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0;
1273
1274         $forum_mode = (($prvgroup) ? 2 : 1);
1275
1276         q("update item set wall = 1, origin = 1, forum_mode = %d, `owner-name` = '%s', `owner-link` = '%s', `owner-avatar` = '%s',
1277                 `private` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'  where id = %d limit 1",
1278                 intval($forum_mode),
1279                 dbesc($c[0]['name']),
1280                 dbesc($c[0]['url']),
1281                 dbesc($c[0]['thumb']),
1282                 intval($private),
1283                 dbesc($u[0]['allow_cid']),
1284                 dbesc($u[0]['allow_gid']),
1285                 dbesc($u[0]['deny_cid']),
1286                 dbesc($u[0]['deny_gid']),
1287                 intval($item_id)
1288         );
1289
1290         proc_run('php','include/notifier.php','tgroup',$item_id);
1291
1292 }
1293
1294
1295
1296 function tgroup_check($uid,$item) {
1297
1298         $a = get_app();
1299
1300         $mention = false;
1301
1302         // check that the message originated elsewhere and is a top-level post
1303
1304         if(($item['wall']) || ($item['origin']) || ($item['uri'] != $item['parent-uri']))
1305                 return false;
1306
1307
1308         $u = q("select * from user where uid = %d limit 1",
1309                 intval($uid)
1310         );
1311         if(! count($u))
1312                 return false;
1313
1314         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1315         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1316
1317
1318         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1319
1320         // Diaspora uses their own hardwired link URL in @-tags
1321         // instead of the one we supply with webfinger
1322
1323         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1324
1325         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1326         if($cnt) {
1327                 foreach($matches as $mtch) {
1328                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1329                                 $mention = true;
1330                                 logger('tgroup_check: mention found: ' . $mtch[2]);
1331                         }
1332                 }
1333         }
1334
1335         if(! $mention)
1336                 return false;
1337
1338         if((! $community_page) && (! $prvgroup))
1339                 return false;
1340
1341
1342
1343         return true;
1344
1345 }
1346
1347
1348
1349
1350
1351
1352 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
1353
1354         $a = get_app();
1355
1356         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
1357
1358         if($contact['duplex'] && $contact['dfrn-id'])
1359                 $idtosend = '0:' . $orig_id;
1360         if($contact['duplex'] && $contact['issued-id'])
1361                 $idtosend = '1:' . $orig_id;
1362
1363         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
1364
1365         $rino_enable = get_config('system','rino_encrypt');
1366
1367         if(! $rino_enable)
1368                 $rino = 0;
1369
1370         $ssl_val = intval(get_config('system','ssl_policy'));
1371         $ssl_policy = '';
1372
1373         switch($ssl_val){
1374                 case SSL_POLICY_FULL:
1375                         $ssl_policy = 'full';
1376                         break;
1377                 case SSL_POLICY_SELFSIGN:
1378                         $ssl_policy = 'self';
1379                         break;
1380                 case SSL_POLICY_NONE:
1381                 default:
1382                         $ssl_policy = 'none';
1383                         break;
1384         }
1385
1386         $url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
1387
1388         logger('dfrn_deliver: ' . $url);
1389
1390         $xml = fetch_url($url);
1391
1392         $curl_stat = $a->get_curl_code();
1393         if(! $curl_stat)
1394                 return(-1); // timed out
1395
1396         logger('dfrn_deliver: ' . $xml, LOGGER_DATA);
1397
1398         if(! $xml)
1399                 return 3;
1400
1401         if(strpos($xml,'<?xml') === false) {
1402                 logger('dfrn_deliver: no valid XML returned');
1403                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
1404                 return 3;
1405         }
1406
1407         $res = parse_xml_string($xml);
1408
1409         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
1410                 return (($res->status) ? $res->status : 3);
1411
1412         $postvars     = array();
1413         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
1414         $challenge    = hex2bin((string) $res->challenge);
1415         $perm         = (($res->perm) ? $res->perm : null);
1416         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
1417         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
1418         $page         = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
1419
1420         if($owner['page-flags'] == PAGE_PRVGROUP)
1421                 $page = 2;
1422
1423         $final_dfrn_id = '';
1424
1425         if($perm) {
1426                 if((($perm == 'rw') && (! intval($contact['writable'])))
1427                 || (($perm == 'r') && (intval($contact['writable'])))) {
1428                         q("update contact set writable = %d where id = %d limit 1",
1429                                 intval(($perm == 'rw') ? 1 : 0),
1430                                 intval($contact['id'])
1431                         );
1432                         $contact['writable'] = (string) 1 - intval($contact['writable']);
1433                 }
1434         }
1435
1436         if(($contact['duplex'] && strlen($contact['pubkey']))
1437                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1438                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1439                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
1440                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
1441         }
1442         else {
1443                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
1444                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
1445         }
1446
1447         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
1448
1449         if(strpos($final_dfrn_id,':') == 1)
1450                 $final_dfrn_id = substr($final_dfrn_id,2);
1451
1452         if($final_dfrn_id != $orig_id) {
1453                 logger('dfrn_deliver: wrong dfrn_id.');
1454                 // did not decode properly - cannot trust this site
1455                 return 3;
1456         }
1457
1458         $postvars['dfrn_id']      = $idtosend;
1459         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
1460         if($dissolve)
1461                 $postvars['dissolve'] = '1';
1462
1463
1464         if((($contact['rel']) && ($contact['rel'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1465                 $postvars['data'] = $atom;
1466                 $postvars['perm'] = 'rw';
1467         }
1468         else {
1469                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
1470                 $postvars['perm'] = 'r';
1471         }
1472
1473         $postvars['ssl_policy'] = $ssl_policy;
1474
1475         if($page)
1476                 $postvars['page'] = $page;
1477
1478         if($rino && $rino_allowed && (! $dissolve)) {
1479                 $key = substr(random_string(),0,16);
1480                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
1481                 $postvars['data'] = $data;
1482                 logger('rino: sent key = ' . $key, LOGGER_DEBUG);
1483
1484
1485                 if($dfrn_version >= 2.1) {
1486                         if(($contact['duplex'] && strlen($contact['pubkey']))
1487                                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1488                                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1489
1490                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1491                         }
1492                         else {
1493                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1494                         }
1495                 }
1496                 else {
1497                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1498                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1499                         }
1500                         else {
1501                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1502                         }
1503                 }
1504
1505                 logger('md5 rawkey ' . md5($postvars['key']));
1506
1507                 $postvars['key'] = bin2hex($postvars['key']);
1508         }
1509
1510         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
1511
1512         $xml = post_url($contact['notify'],$postvars);
1513
1514         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
1515
1516         $curl_stat = $a->get_curl_code();
1517         if((! $curl_stat) || (! strlen($xml)))
1518                 return(-1); // timed out
1519
1520         if(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
1521                 return(-1);
1522
1523         if(strpos($xml,'<?xml') === false) {
1524                 logger('dfrn_deliver: phase 2: no valid XML returned');
1525                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
1526                 return 3;
1527         }
1528
1529         if($contact['term-date'] != '0000-00-00 00:00:00') {
1530                 logger("dfrn_deliver: $url back from the dead - removing mark for death");
1531                 require_once('include/Contact.php');
1532                 unmark_for_death($contact);
1533         }
1534
1535         $res = parse_xml_string($xml);
1536
1537         return $res->status;
1538 }
1539
1540
1541 /**
1542  *
1543  * consume_feed - process atom feed and update anything/everything we might need to update
1544  *
1545  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
1546  *
1547  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
1548  *             It is this person's stuff that is going to be updated.
1549  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
1550  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
1551  *             have a contact record.
1552  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
1553  *        might not) try and subscribe to it.
1554  * $datedir sorts in reverse order
1555  * $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
1556  *      imported prior to its children being seen in the stream unless we are certain
1557  *      of how the feed is arranged/ordered.
1558  * With $pass = 1, we only pull parent items out of the stream.
1559  * With $pass = 2, we only pull children (comments/likes).
1560  *
1561  * So running this twice, first with pass 1 and then with pass 2 will do the right
1562  * thing regardless of feed ordering. This won't be adequate in a fully-threaded
1563  * model where comments can have sub-threads. That would require some massive sorting
1564  * to get all the feed items into a mostly linear ordering, and might still require
1565  * recursion.
1566  */
1567
1568 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $pass = 0) {
1569
1570         require_once('library/simplepie/simplepie.inc');
1571
1572         if(! strlen($xml)) {
1573                 logger('consume_feed: empty input');
1574                 return;
1575         }
1576
1577         $feed = new SimplePie();
1578         $feed->set_raw_data($xml);
1579         if($datedir)
1580                 $feed->enable_order_by_date(true);
1581         else
1582                 $feed->enable_order_by_date(false);
1583         $feed->init();
1584
1585         if($feed->error())
1586                 logger('consume_feed: Error parsing XML: ' . $feed->error());
1587
1588         $permalink = $feed->get_permalink();
1589
1590         // Check at the feed level for updated contact name and/or photo
1591
1592         $name_updated  = '';
1593         $new_name = '';
1594         $photo_timestamp = '';
1595         $photo_url = '';
1596         $birthday = '';
1597
1598         $hubs = $feed->get_links('hub');
1599         logger('consume_feed: hubs: ' . print_r($hubs,true), LOGGER_DATA);
1600
1601         if(count($hubs))
1602                 $hub = implode(',', $hubs);
1603
1604         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
1605         if(! $rawtags)
1606                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
1607         if($rawtags) {
1608                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
1609                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
1610                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
1611                         $new_name = $elems['name'][0]['data'];
1612                 }
1613                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
1614                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
1615                         $photo_url = $elems['link'][0]['attribs']['']['href'];
1616                 }
1617
1618                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
1619                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
1620                 }
1621         }
1622
1623         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
1624                 logger('consume_feed: Updating photo for ' . $contact['name']);
1625                 require_once("include/Photo.php");
1626                 $photo_failure = false;
1627                 $have_photo = false;
1628
1629                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
1630                         intval($contact['id']),
1631                         intval($contact['uid'])
1632                 );
1633                 if(count($r)) {
1634                         $resource_id = $r[0]['resource-id'];
1635                         $have_photo = true;
1636                 }
1637                 else {
1638                         $resource_id = photo_new_resource();
1639                 }
1640
1641                 $img_str = fetch_url($photo_url,true);
1642                 // guess mimetype from headers or filename
1643                 $type = guess_image_type($photo_url,true);
1644
1645
1646                 $img = new Photo($img_str, $type);
1647                 if($img->is_valid()) {
1648                         if($have_photo) {
1649                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
1650                                         dbesc($resource_id),
1651                                         intval($contact['id']),
1652                                         intval($contact['uid'])
1653                                 );
1654                         }
1655
1656                         $img->scaleImageSquare(175);
1657
1658                         $hash = $resource_id;
1659                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 4);
1660
1661                         $img->scaleImage(80);
1662                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 5);
1663
1664                         $img->scaleImage(48);
1665                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 6);
1666
1667                         $a = get_app();
1668
1669                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
1670                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
1671                                 dbesc(datetime_convert()),
1672                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
1673                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
1674                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
1675                                 intval($contact['uid']),
1676                                 intval($contact['id'])
1677                         );
1678                 }
1679         }
1680
1681         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
1682                 $r = q("select * from contact where uid = %d and id = %d limit 1",
1683                         intval($contact['uid']),
1684                         intval($contact['id'])
1685                 );
1686
1687                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1688                         dbesc(notags(trim($new_name))),
1689                         dbesc(datetime_convert()),
1690                         intval($contact['uid']),
1691                         intval($contact['id'])
1692                 );
1693
1694                 // do our best to update the name on content items
1695
1696                 if(count($r)) {
1697                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
1698                                 dbesc(notags(trim($new_name))),
1699                                 dbesc($r[0]['name']),
1700                                 dbesc($r[0]['url']),
1701                                 intval($contact['uid'])
1702                         );
1703                 }
1704         }
1705
1706         if(strlen($birthday)) {
1707                 if(substr($birthday,0,4) != $contact['bdyear']) {
1708                         logger('consume_feed: updating birthday: ' . $birthday);
1709
1710                         /**
1711                          *
1712                          * Add new birthday event for this person
1713                          *
1714                          * $bdtext is just a readable placeholder in case the event is shared
1715                          * with others. We will replace it during presentation to our $importer
1716                          * to contain a sparkle link and perhaps a photo.
1717                          *
1718                          */
1719
1720                         $bdtext = sprintf( t('%s\'s birthday'), $contact['name']);
1721                         $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ) ;
1722
1723
1724                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`)
1725                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
1726                                 intval($contact['uid']),
1727                                 intval($contact['id']),
1728                                 dbesc(datetime_convert()),
1729                                 dbesc(datetime_convert()),
1730                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
1731                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
1732                                 dbesc($bdtext),
1733                                 dbesc($bdtext2),
1734                                 dbesc('birthday')
1735                         );
1736
1737
1738                         // update bdyear
1739
1740                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1741                                 dbesc(substr($birthday,0,4)),
1742                                 intval($contact['uid']),
1743                                 intval($contact['id'])
1744                         );
1745
1746                         // This function is called twice without reloading the contact
1747                         // Make sure we only create one event. This is why &$contact
1748                         // is a reference var in this function
1749
1750                         $contact['bdyear'] = substr($birthday,0,4);
1751                 }
1752
1753         }
1754
1755         $community_page = 0;
1756         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
1757         if($rawtags) {
1758                 $community_page = intval($rawtags[0]['data']);
1759         }
1760         if(is_array($contact) && intval($contact['forum']) != $community_page) {
1761                 q("update contact set forum = %d where id = %d limit 1",
1762                         intval($community_page),
1763                         intval($contact['id'])
1764                 );
1765                 $contact['forum'] = (string) $community_page;
1766         }
1767
1768
1769         // process any deleted entries
1770
1771         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
1772         if(is_array($del_entries) && count($del_entries) && $pass != 2) {
1773                 foreach($del_entries as $dentry) {
1774                         $deleted = false;
1775                         if(isset($dentry['attribs']['']['ref'])) {
1776                                 $uri = $dentry['attribs']['']['ref'];
1777                                 $deleted = true;
1778                                 if(isset($dentry['attribs']['']['when'])) {
1779                                         $when = $dentry['attribs']['']['when'];
1780                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
1781                                 }
1782                                 else
1783                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
1784                         }
1785                         if($deleted && is_array($contact)) {
1786                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join `contact` on `item`.`contact-id` = `contact`.`id`
1787                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
1788                                         dbesc($uri),
1789                                         intval($importer['uid']),
1790                                         intval($contact['id'])
1791                                 );
1792                                 if(count($r)) {
1793                                         $item = $r[0];
1794
1795                                         if(! $item['deleted'])
1796                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
1797
1798                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
1799                                                 $xo = parse_xml_string($item['object'],false);
1800                                                 $xt = parse_xml_string($item['target'],false);
1801                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
1802                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
1803                                                                 dbesc($xt->id),
1804                                                                 intval($importer['importer_uid'])
1805                                                         );
1806                                                         if(count($i)) {
1807
1808                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
1809
1810                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
1811                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
1812                                                                 $author_copy = (($item['origin']) ? true : false);
1813
1814                                                                 if($owner_remove && $author_copy)
1815                                                                         continue;
1816                                                                 if($author_remove || $owner_remove) {
1817                                                                         $tags = explode(',',$i[0]['tag']);
1818                                                                         $newtags = array();
1819                                                                         if(count($tags)) {
1820                                                                                 foreach($tags as $tag)
1821                                                                                         if(trim($tag) !== trim($xo->body))
1822                                                                                                 $newtags[] = trim($tag);
1823                                                                         }
1824                                                                         q("update item set tag = '%s' where id = %d limit 1",
1825                                                                                 dbesc(implode(',',$newtags)),
1826                                                                                 intval($i[0]['id'])
1827                                                                         );
1828                                                                 }
1829                                                         }
1830                                                 }
1831                                         }
1832
1833                                         if($item['uri'] == $item['parent-uri']) {
1834                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1835                                                         `body` = '', `title` = ''
1836                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
1837                                                         dbesc($when),
1838                                                         dbesc(datetime_convert()),
1839                                                         dbesc($item['uri']),
1840                                                         intval($importer['uid'])
1841                                                 );
1842                                         }
1843                                         else {
1844                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1845                                                         `body` = '', `title` = ''
1846                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1847                                                         dbesc($when),
1848                                                         dbesc(datetime_convert()),
1849                                                         dbesc($uri),
1850                                                         intval($importer['uid'])
1851                                                 );
1852                                                 if($item['last-child']) {
1853                                                         // ensure that last-child is set in case the comment that had it just got wiped.
1854                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
1855                                                                 dbesc(datetime_convert()),
1856                                                                 dbesc($item['parent-uri']),
1857                                                                 intval($item['uid'])
1858                                                         );
1859                                                         // who is the last child now?
1860                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `moderated` = 0 AND `uid` = %d
1861                                                                 ORDER BY `created` DESC LIMIT 1",
1862                                                                         dbesc($item['parent-uri']),
1863                                                                         intval($importer['uid'])
1864                                                         );
1865                                                         if(count($r)) {
1866                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
1867                                                                         intval($r[0]['id'])
1868                                                                 );
1869                                                         }
1870                                                 }
1871                                         }
1872                                 }
1873                         }
1874                 }
1875         }
1876
1877         // Now process the feed
1878
1879         if($feed->get_item_quantity()) {
1880
1881                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
1882
1883         // in inverse date order
1884                 if ($datedir)
1885                         $items = array_reverse($feed->get_items());
1886                 else
1887                         $items = $feed->get_items();
1888
1889
1890                 foreach($items as $item) {
1891
1892                         $is_reply = false;
1893                         $item_id = $item->get_id();
1894                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
1895                         if(isset($rawthread[0]['attribs']['']['ref'])) {
1896                                 $is_reply = true;
1897                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
1898                         }
1899
1900                         if(($is_reply) && is_array($contact)) {
1901
1902                                 if($pass == 1)
1903                                         continue;
1904
1905                                 // not allowed to post
1906
1907                                 if($contact['rel'] == CONTACT_IS_FOLLOWER)
1908                                         continue;
1909
1910
1911                                 // Have we seen it? If not, import it.
1912
1913                                 $item_id  = $item->get_id();
1914                                 $datarray = get_atom_elements($feed,$item);
1915
1916                                 if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
1917                                         $datarray['author-name'] = $contact['name'];
1918                                 if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
1919                                         $datarray['author-link'] = $contact['url'];
1920                                 if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
1921                                         $datarray['author-avatar'] = $contact['thumb'];
1922
1923                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
1924                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
1925                                         continue;
1926                                 }
1927
1928                                 $force_parent = false;
1929                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
1930                                         if($contact['network'] === NETWORK_OSTATUS)
1931                                                 $force_parent = true;
1932                                         if(strlen($datarray['title']))
1933                                                 unset($datarray['title']);
1934                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1935                                                 dbesc(datetime_convert()),
1936                                                 dbesc($parent_uri),
1937                                                 intval($importer['uid'])
1938                                         );
1939                                         $datarray['last-child'] = 1;
1940                                 }
1941
1942
1943                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1944                                         dbesc($item_id),
1945                                         intval($importer['uid'])
1946                                 );
1947
1948                                 // Update content if 'updated' changes
1949
1950                                 if(count($r)) {
1951                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
1952
1953                                                 // do not accept (ignore) an earlier edit than one we currently have.
1954                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
1955                                                         continue;
1956
1957                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1958                                                         dbesc($datarray['title']),
1959                                                         dbesc($datarray['body']),
1960                                                         dbesc($datarray['tag']),
1961                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
1962                                                         dbesc($item_id),
1963                                                         intval($importer['uid'])
1964                                                 );
1965                                         }
1966
1967                                         // update last-child if it changes
1968
1969                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1970                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
1971                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1972                                                         dbesc(datetime_convert()),
1973                                                         dbesc($parent_uri),
1974                                                         intval($importer['uid'])
1975                                                 );
1976                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1977                                                         intval($allow[0]['data']),
1978                                                         dbesc(datetime_convert()),
1979                                                         dbesc($item_id),
1980                                                         intval($importer['uid'])
1981                                                 );
1982                                         }
1983                                         continue;
1984                                 }
1985
1986
1987                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
1988                                         // one way feed - no remote comment ability
1989                                         $datarray['last-child'] = 0;
1990                                 }
1991                                 $datarray['parent-uri'] = $parent_uri;
1992                                 $datarray['uid'] = $importer['uid'];
1993                                 $datarray['contact-id'] = $contact['id'];
1994                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
1995                                         $datarray['type'] = 'activity';
1996                                         $datarray['gravity'] = GRAVITY_LIKE;
1997                                         // only one like or dislike per person
1998                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s' OR `thr-parent` = '%s') limit 1",
1999                                                 intval($datarray['uid']),
2000                                                 intval($datarray['contact-id']),
2001                                                 dbesc($datarray['verb']),
2002                                                 dbesc($parent_uri),
2003                                                 dbesc($parent_uri)
2004                                         );
2005                                         if($r && count($r))
2006                                                 continue;
2007                                 }
2008
2009                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2010                                         $xo = parse_xml_string($datarray['object'],false);
2011                                         $xt = parse_xml_string($datarray['target'],false);
2012
2013                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
2014                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
2015                                                         dbesc($xt->id),
2016                                                         intval($importer['importer_uid'])
2017                                                 );
2018                                                 if(! count($r))
2019                                                         continue;
2020
2021                                                 // extract tag, if not duplicate, add to parent item
2022                                                 if($xo->id && $xo->content) {
2023                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
2024                                                         if(! (stristr($r[0]['tag'],$newtag))) {
2025                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1",
2026                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . $newtag),
2027                                                                         intval($r[0]['id'])
2028                                                                 );
2029                                                         }
2030                                                 }
2031                                         }
2032                                 }
2033
2034                                 $r = item_store($datarray,$force_parent);
2035                                 continue;
2036                         }
2037
2038                         else {
2039
2040                                 // Head post of a conversation. Have we seen it? If not, import it.
2041
2042                                 $item_id  = $item->get_id();
2043
2044                                 $datarray = get_atom_elements($feed,$item);
2045
2046                                 if(is_array($contact)) {
2047                                         if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
2048                                                 $datarray['author-name'] = $contact['name'];
2049                                         if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
2050                                                 $datarray['author-link'] = $contact['url'];
2051                                         if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
2052                                                 $datarray['author-avatar'] = $contact['thumb'];
2053                                 }
2054
2055                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
2056                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
2057                                         continue;
2058                                 }
2059
2060                                 // special handling for events
2061
2062                                 if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
2063                                         $ev = bbtoevent($datarray['body']);
2064                                         if(x($ev,'desc') && x($ev,'start')) {
2065                                                 $ev['uid'] = $importer['uid'];
2066                                                 $ev['uri'] = $item_id;
2067                                                 $ev['edited'] = $datarray['edited'];
2068                                                 $ev['private'] = $datarray['private'];
2069
2070                                                 if(is_array($contact))
2071                                                         $ev['cid'] = $contact['id'];
2072                                                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2073                                                         dbesc($item_id),
2074                                                         intval($importer['uid'])
2075                                                 );
2076                                                 if(count($r))
2077                                                         $ev['id'] = $r[0]['id'];
2078                                                 $xyz = event_store($ev);
2079                                                 continue;
2080                                         }
2081                                 }
2082
2083                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
2084                                         if(strlen($datarray['title']))
2085                                                 unset($datarray['title']);
2086                                         $datarray['last-child'] = 1;
2087                                 }
2088
2089
2090                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2091                                         dbesc($item_id),
2092                                         intval($importer['uid'])
2093                                 );
2094
2095                                 // Update content if 'updated' changes
2096
2097                                 if(count($r)) {
2098                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2099
2100                                                 // do not accept (ignore) an earlier edit than one we currently have.
2101                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2102                                                         continue;
2103
2104                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2105                                                         dbesc($datarray['title']),
2106                                                         dbesc($datarray['body']),
2107                                                         dbesc($datarray['tag']),
2108                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2109                                                         dbesc($item_id),
2110                                                         intval($importer['uid'])
2111                                                 );
2112                                         }
2113
2114                                         // update last-child if it changes
2115
2116                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2117                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
2118                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2119                                                         intval($allow[0]['data']),
2120                                                         dbesc(datetime_convert()),
2121                                                         dbesc($item_id),
2122                                                         intval($importer['uid'])
2123                                                 );
2124                                         }
2125                                         continue;
2126                                 }
2127
2128                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
2129                                         logger('consume-feed: New follower');
2130                                         new_follower($importer,$contact,$datarray,$item);
2131                                         return;
2132                                 }
2133                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
2134                                         lose_follower($importer,$contact,$datarray,$item);
2135                                         return;
2136                                 }
2137
2138                                 if(activity_match($datarray['verb'],ACTIVITY_REQ_FRIEND)) {
2139                                         logger('consume-feed: New friend request');
2140                                         new_follower($importer,$contact,$datarray,$item,true);
2141                                         return;
2142                                 }
2143                                 if(activity_match($datarray['verb'],ACTIVITY_UNFRIEND))  {
2144                                         lose_sharer($importer,$contact,$datarray,$item);
2145                                         return;
2146                                 }
2147
2148
2149                                 if(! is_array($contact))
2150                                         return;
2151
2152
2153                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
2154                                                 // one way feed - no remote comment ability
2155                                                 $datarray['last-child'] = 0;
2156                                 }
2157                                 if($contact['network'] === NETWORK_FEED)
2158                                         $datarray['private'] = 2;
2159
2160                                 // This is my contact on another system, but it's really me.
2161                                 // Turn this into a wall post.
2162
2163                                 if($contact['remote_self']) {
2164                                         $datarray['wall'] = 1;
2165                                         if($contact['network'] === NETWORK_FEED) {
2166                                                 $datarray['private'] = 0;
2167                                         }
2168                                 }
2169
2170                                 $datarray['parent-uri'] = $item_id;
2171                                 $datarray['uid'] = $importer['uid'];
2172                                 $datarray['contact-id'] = $contact['id'];
2173
2174                                 if(! link_compare($datarray['owner-link'],$contact['url'])) {
2175                                         // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
2176                                         // but otherwise there's a possible data mixup on the sender's system.
2177                                         // the tgroup delivery code called from item_store will correct it if it's a forum,
2178                                         // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
2179                                         logger('consume_feed: Correcting item owner.', LOGGER_DEBUG);
2180                                         $datarray['owner-name']   = $contact['name'];
2181                                         $datarray['owner-link']   = $contact['url'];
2182                                         $datarray['owner-avatar'] = $contact['thumb'];
2183                                 }
2184
2185                                 // We've allowed "followers" to reach this point so we can decide if they are
2186                                 // posting an @-tag delivery, which followers are allowed to do for certain
2187                                 // page types. Now that we've parsed the post, let's check if it is legit. Otherwise ignore it.
2188
2189                                 if(($contact['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['uid'],$datarray)))
2190                                         continue;
2191
2192
2193                                 $r = item_store($datarray);
2194                                 continue;
2195
2196                         }
2197                 }
2198         }
2199 }
2200
2201 function local_delivery($importer,$data) {
2202         $a = get_app();
2203
2204     logger(__function__, LOGGER_TRACE);
2205
2206         if($importer['readonly']) {
2207                 // We aren't receiving stuff from this person. But we will quietly ignore them
2208                 // rather than a blatant "go away" message.
2209                 logger('local_delivery: ignoring');
2210                 return 0;
2211                 //NOTREACHED
2212         }
2213
2214         // Consume notification feed. This may differ from consuming a public feed in several ways
2215         // - might contain email or friend suggestions
2216         // - might contain remote followup to our message
2217         //              - in which case we need to accept it and then notify other conversants
2218         // - we may need to send various email notifications
2219
2220         $feed = new SimplePie();
2221         $feed->set_raw_data($data);
2222         $feed->enable_order_by_date(false);
2223         $feed->init();
2224
2225
2226         if($feed->error())
2227                 logger('local_delivery: Error parsing XML: ' . $feed->error());
2228
2229
2230         // Check at the feed level for updated contact name and/or photo
2231
2232         $name_updated  = '';
2233         $new_name = '';
2234         $photo_timestamp = '';
2235         $photo_url = '';
2236
2237
2238         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
2239
2240 // Fallback should not be needed here. If it isn't DFRN it won't have DFRN updated tags
2241 //      if(! $rawtags)
2242 //              $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
2243
2244         if($rawtags) {
2245                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2246                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2247                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2248                         $new_name = $elems['name'][0]['data'];
2249                 }
2250                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2251                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2252                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2253                 }
2254         }
2255
2256         if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $importer['avatar-date'])) {
2257                 logger('local_delivery: Updating photo for ' . $importer['name']);
2258                 require_once("include/Photo.php");
2259                 $photo_failure = false;
2260                 $have_photo = false;
2261
2262                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2263                         intval($importer['id']),
2264                         intval($importer['importer_uid'])
2265                 );
2266                 if(count($r)) {
2267                         $resource_id = $r[0]['resource-id'];
2268                         $have_photo = true;
2269                 }
2270                 else {
2271                         $resource_id = photo_new_resource();
2272                 }
2273
2274                 $img_str = fetch_url($photo_url,true);
2275                 // guess mimetype from headers or filename
2276                 $type = guess_image_type($photo_url,true);
2277
2278
2279                 $img = new Photo($img_str, $type);
2280                 if($img->is_valid()) {
2281                         if($have_photo) {
2282                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2283                                         dbesc($resource_id),
2284                                         intval($importer['id']),
2285                                         intval($importer['importer_uid'])
2286                                 );
2287                         }
2288
2289                         $img->scaleImageSquare(175);
2290
2291                         $hash = $resource_id;
2292                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2293
2294                         $img->scaleImage(80);
2295                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2296
2297                         $img->scaleImage(48);
2298                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2299
2300                         $a = get_app();
2301
2302                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2303                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
2304                                 dbesc(datetime_convert()),
2305                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2306                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2307                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2308                                 intval($importer['importer_uid']),
2309                                 intval($importer['id'])
2310                         );
2311                 }
2312         }
2313
2314         if(($name_updated) && (strlen($new_name)) && ($name_updated > $importer['name-date'])) {
2315                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2316                         intval($importer['importer_uid']),
2317                         intval($importer['id'])
2318                 );
2319
2320                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
2321                         dbesc(notags(trim($new_name))),
2322                         dbesc(datetime_convert()),
2323                         intval($importer['importer_uid']),
2324                         intval($importer['id'])
2325                 );
2326
2327                 // do our best to update the name on content items
2328
2329                 if(count($r)) {
2330                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2331                                 dbesc(notags(trim($new_name))),
2332                                 dbesc($r[0]['name']),
2333                                 dbesc($r[0]['url']),
2334                                 intval($importer['importer_uid'])
2335                         );
2336                 }
2337         }
2338
2339
2340
2341         // Currently unsupported - needs a lot of work
2342         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
2343         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
2344                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
2345                 $newloc = array();
2346                 $newloc['uid'] = $importer['importer_uid'];
2347                 $newloc['cid'] = $importer['id'];
2348                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
2349                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
2350                 $newloc['thumb'] = notags(unxmlify($base['thumb'][0]['data']));
2351                 $newloc['micro'] = notags(unxmlify($base['micro'][0]['data']));
2352                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
2353                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
2354                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
2355                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
2356                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
2357                 $newloc['sitepubkey'] = notags(unxmlify($base['sitepubkey'][0]['data']));
2358                 /** relocated user must have original key pair */
2359                 /*$newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
2360                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));*/
2361
2362         logger("items:relocate contact ".print_r($newloc, true).print_r($importer, true), LOGGER_DEBUG);
2363
2364         // update contact
2365         $r = q("SELECT photo, url FROM contact WHERE id=%d AND uid=%d;",
2366                     intval($importer['id']),
2367                                         intval($importer['importer_uid']));
2368                 if ($r === false)
2369                         return 1;
2370         $old = $r[0];
2371
2372         $x = q("UPDATE contact SET
2373                         name = '%s',
2374                         photo = '%s',
2375                         thumb = '%s',
2376                         micro = '%s',
2377                         url = '%s',
2378                         request = '%s',
2379                         confirm = '%s',
2380                         notify = '%s',
2381                         poll = '%s',
2382                         `site-pubkey` = '%s'
2383                 WHERE id=%d AND uid=%d;",
2384                     dbesc($newloc['name']),
2385                     dbesc($newloc['photo']),
2386                     dbesc($newloc['thumb']),
2387                     dbesc($newloc['micro']),
2388                     dbesc($newloc['url']),
2389                     dbesc($newloc['request']),
2390                     dbesc($newloc['confirm']),
2391                     dbesc($newloc['notify']),
2392                     dbesc($newloc['poll']),
2393                     dbesc($newloc['sitepubkey']),
2394                     intval($importer['id']),
2395                                         intval($importer['importer_uid']));
2396
2397         if ($x === false)
2398                         return 1;
2399         // update items
2400         $fields = array(
2401             'owner-link' => array($old['url'], $newloc['url']),
2402             'author-link' => array($old['url'], $newloc['url']),
2403             'owner-avatar' => array($old['photo'], $newloc['photo']),
2404             'author-avatar' => array($old['photo'], $newloc['photo']),
2405         );
2406         foreach ($fields as $n=>$f){
2407             $x = q("UPDATE item SET `%s`='%s' WHERE `%s`='%s' AND uid=%d",
2408                         $n, dbesc($f[1]),
2409                         $n, dbesc($f[0]),
2410                         intval($importer['importer_uid']));
2411                         if ($x === false)
2412                                 return 1;
2413                 }
2414
2415                 // TODO
2416                 // merge with current record, current contents have priority
2417                 // update record, set url-updated
2418                 // update profile photos
2419                 // schedule a scan?
2420         return 0;
2421         }
2422
2423
2424         // handle friend suggestion notification
2425
2426         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
2427         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
2428                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
2429                 $fsugg = array();
2430                 $fsugg['uid'] = $importer['importer_uid'];
2431                 $fsugg['cid'] = $importer['id'];
2432                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
2433                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
2434                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
2435                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
2436                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
2437
2438                 // Does our member already have a friend matching this description?
2439
2440                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
2441                         dbesc($fsugg['name']),
2442                         dbesc(normalise_link($fsugg['url'])),
2443                         intval($fsugg['uid'])
2444                 );
2445                 if(count($r))
2446                         return 0;
2447
2448                 // Do we already have an fcontact record for this person?
2449
2450                 $fid = 0;
2451                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2452                         dbesc($fsugg['url']),
2453                         dbesc($fsugg['name']),
2454                         dbesc($fsugg['request'])
2455                 );
2456                 if(count($r)) {
2457                         $fid = $r[0]['id'];
2458
2459                         // OK, we do. Do we already have an introduction for this person ?
2460                         $r = q("select id from intro where uid = %d and fid = %d limit 1",
2461                                 intval($fsugg['uid']),
2462                                 intval($fid)
2463                         );
2464                         if(count($r))
2465                                 return 0;
2466                 }
2467                 if(! $fid)
2468                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
2469                         dbesc($fsugg['name']),
2470                         dbesc($fsugg['url']),
2471                         dbesc($fsugg['photo']),
2472                         dbesc($fsugg['request'])
2473                 );
2474                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2475                         dbesc($fsugg['url']),
2476                         dbesc($fsugg['name']),
2477                         dbesc($fsugg['request'])
2478                 );
2479                 if(count($r)) {
2480                         $fid = $r[0]['id'];
2481                 }
2482                 // database record did not get created. Quietly give up.
2483                 else
2484                         return 0;
2485
2486
2487                 $hash = random_string();
2488
2489                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
2490                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
2491                         intval($fsugg['uid']),
2492                         intval($fid),
2493                         intval($fsugg['cid']),
2494                         dbesc($fsugg['body']),
2495                         dbesc($hash),
2496                         dbesc(datetime_convert()),
2497                         intval(0)
2498                 );
2499
2500                 notification(array(
2501                         'type'         => NOTIFY_SUGGEST,
2502                         'notify_flags' => $importer['notify-flags'],
2503                         'language'     => $importer['language'],
2504                         'to_name'      => $importer['username'],
2505                         'to_email'     => $importer['email'],
2506                         'uid'          => $importer['importer_uid'],
2507                         'item'         => $fsugg,
2508                         'link'         => $a->get_baseurl() . '/notifications/intros',
2509                         'source_name'  => $importer['name'],
2510                         'source_link'  => $importer['url'],
2511                         'source_photo' => $importer['photo'],
2512                         'verb'         => ACTIVITY_REQ_FRIEND,
2513                         'otype'        => 'intro'
2514                 ));
2515
2516                 return 0;
2517         }
2518
2519         $ismail = false;
2520
2521         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
2522         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
2523
2524                 logger('local_delivery: private message received');
2525
2526                 $ismail = true;
2527                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
2528
2529                 $msg = array();
2530                 $msg['uid'] = $importer['importer_uid'];
2531                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
2532                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
2533                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
2534                 $msg['contact-id'] = $importer['id'];
2535                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
2536                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
2537                 $msg['seen'] = 0;
2538                 $msg['replied'] = 0;
2539                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
2540                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
2541                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
2542
2543                 dbesc_array($msg);
2544
2545                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
2546                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
2547
2548                 // send notifications.
2549
2550                 require_once('include/enotify.php');
2551
2552                 $notif_params = array(
2553                         'type' => NOTIFY_MAIL,
2554                         'notify_flags' => $importer['notify-flags'],
2555                         'language' => $importer['language'],
2556                         'to_name' => $importer['username'],
2557                         'to_email' => $importer['email'],
2558                         'uid' => $importer['importer_uid'],
2559                         'item' => $msg,
2560                         'source_name' => $msg['from-name'],
2561                         'source_link' => $importer['url'],
2562                         'source_photo' => $importer['thumb'],
2563                         'verb' => ACTIVITY_POST,
2564                         'otype' => 'mail'
2565                 );
2566
2567                 notification($notif_params);
2568                 return 0;
2569
2570                 // NOTREACHED
2571         }
2572
2573         $community_page = 0;
2574         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
2575         if($rawtags) {
2576                 $community_page = intval($rawtags[0]['data']);
2577         }
2578         if(intval($importer['forum']) != $community_page) {
2579                 q("update contact set forum = %d where id = %d limit 1",
2580                         intval($community_page),
2581                         intval($importer['id'])
2582                 );
2583                 $importer['forum'] = (string) $community_page;
2584         }
2585
2586         logger('local_delivery: feed item count = ' . $feed->get_item_quantity());
2587
2588         // process any deleted entries
2589
2590         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
2591         if(is_array($del_entries) && count($del_entries)) {
2592                 foreach($del_entries as $dentry) {
2593                         $deleted = false;
2594                         if(isset($dentry['attribs']['']['ref'])) {
2595                                 $uri = $dentry['attribs']['']['ref'];
2596                                 $deleted = true;
2597                                 if(isset($dentry['attribs']['']['when'])) {
2598                                         $when = $dentry['attribs']['']['when'];
2599                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
2600                                 }
2601                                 else
2602                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
2603                         }
2604                         if($deleted) {
2605
2606                                 // check for relayed deletes to our conversation
2607
2608                                 $is_reply = false;
2609                                 $r = q("select * from item where uri = '%s' and uid = %d limit 1",
2610                                         dbesc($uri),
2611                                         intval($importer['importer_uid'])
2612                                 );
2613                                 if(count($r)) {
2614                                         $parent_uri = $r[0]['parent-uri'];
2615                                         if($r[0]['id'] != $r[0]['parent'])
2616                                                 $is_reply = true;
2617                                 }
2618
2619                                 if($is_reply) {
2620                                         $community = false;
2621
2622                                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
2623                                                 $sql_extra = '';
2624                                                 $community = true;
2625                                                 logger('local_delivery: possible community delete');
2626                                         }
2627                                         else
2628                                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
2629
2630                                         // was the top-level post for this reply written by somebody on this site?
2631                                         // Specifically, the recipient?
2632
2633                                         $is_a_remote_delete = false;
2634
2635                                         // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
2636                                         $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
2637                                                 `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
2638                                                 LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2639                                                 WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
2640                                                 AND `item`.`uid` = %d
2641                                                 $sql_extra
2642                                                 LIMIT 1",
2643                                                 dbesc($parent_uri),
2644                                                 dbesc($parent_uri),
2645                                                 dbesc($parent_uri),
2646                                                 intval($importer['importer_uid'])
2647                                         );
2648                                         if($r && count($r))
2649                                                 $is_a_remote_delete = true;
2650
2651                                         // Does this have the characteristics of a community or private group comment?
2652                                         // If it's a reply to a wall post on a community/prvgroup page it's a
2653                                         // valid community comment. Also forum_mode makes it valid for sure.
2654                                         // If neither, it's not.
2655
2656                                         if($is_a_remote_delete && $community) {
2657                                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
2658                                                         $is_a_remote_delete = false;
2659                                                         logger('local_delivery: not a community delete');
2660                                                 }
2661                                         }
2662
2663                                         if($is_a_remote_delete) {
2664                                                 logger('local_delivery: received remote delete');
2665                                         }
2666                                 }
2667
2668                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join contact on `item`.`contact-id` = `contact`.`id`
2669                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
2670                                         dbesc($uri),
2671                                         intval($importer['importer_uid']),
2672                                         intval($importer['id'])
2673                                 );
2674
2675                                 if(count($r)) {
2676                                         $item = $r[0];
2677
2678                                         if($item['deleted'])
2679                                                 continue;
2680
2681                                         logger('local_delivery: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
2682
2683                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2684                                                 $xo = parse_xml_string($item['object'],false);
2685                                                 $xt = parse_xml_string($item['target'],false);
2686
2687                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
2688                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
2689                                                                 dbesc($xt->id),
2690                                                                 intval($importer['importer_uid'])
2691                                                         );
2692                                                         if(count($i)) {
2693
2694                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
2695
2696                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
2697                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
2698                                                                 $author_copy = (($item['origin']) ? true : false);
2699
2700                                                                 if($owner_remove && $author_copy)
2701                                                                         continue;
2702                                                                 if($author_remove || $owner_remove) {
2703                                                                         $tags = explode(',',$i[0]['tag']);
2704                                                                         $newtags = array();
2705                                                                         if(count($tags)) {
2706                                                                                 foreach($tags as $tag)
2707                                                                                         if(trim($tag) !== trim($xo->body))
2708                                                                                                 $newtags[] = trim($tag);
2709                                                                         }
2710                                                                         q("update item set tag = '%s' where id = %d limit 1",
2711                                                                                 dbesc(implode(',',$newtags)),
2712                                                                                 intval($i[0]['id'])
2713                                                                         );
2714                                                                 }
2715                                                         }
2716                                                 }
2717                                         }
2718
2719                                         if($item['uri'] == $item['parent-uri']) {
2720                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2721                                                         `body` = '', `title` = ''
2722                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
2723                                                         dbesc($when),
2724                                                         dbesc(datetime_convert()),
2725                                                         dbesc($item['uri']),
2726                                                         intval($importer['importer_uid'])
2727                                                 );
2728                                         }
2729                                         else {
2730                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2731                                                         `body` = '', `title` = ''
2732                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2733                                                         dbesc($when),
2734                                                         dbesc(datetime_convert()),
2735                                                         dbesc($uri),
2736                                                         intval($importer['importer_uid'])
2737                                                 );
2738                                                 if($item['last-child']) {
2739                                                         // ensure that last-child is set in case the comment that had it just got wiped.
2740                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
2741                                                                 dbesc(datetime_convert()),
2742                                                                 dbesc($item['parent-uri']),
2743                                                                 intval($item['uid'])
2744                                                         );
2745                                                         // who is the last child now?
2746                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
2747                                                                 ORDER BY `created` DESC LIMIT 1",
2748                                                                         dbesc($item['parent-uri']),
2749                                                                         intval($importer['importer_uid'])
2750                                                         );
2751                                                         if(count($r)) {
2752                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
2753                                                                         intval($r[0]['id'])
2754                                                                 );
2755                                                         }
2756                                                 }
2757                                                 // if this is a relayed delete, propagate it to other recipients
2758
2759                                                 if($is_a_remote_delete)
2760                                                         proc_run('php',"include/notifier.php","drop",$item['id']);
2761                                         }
2762                                 }
2763                         }
2764                 }
2765         }
2766
2767
2768         foreach($feed->get_items() as $item) {
2769
2770                 $is_reply = false;
2771                 $item_id = $item->get_id();
2772                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
2773                 if(isset($rawthread[0]['attribs']['']['ref'])) {
2774                         $is_reply = true;
2775                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
2776                 }
2777
2778                 if($is_reply) {
2779                         $community = false;
2780
2781                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
2782                                 $sql_extra = '';
2783                                 $community = true;
2784                                 logger('local_delivery: possible community reply');
2785                         }
2786                         else
2787                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
2788
2789                         // was the top-level post for this reply written by somebody on this site?
2790                         // Specifically, the recipient?
2791
2792                         $is_a_remote_comment = false;
2793                         $top_uri = $parent_uri;
2794
2795                         $r = q("select `item`.`parent-uri` from `item`
2796                                 WHERE `item`.`uri` = '%s'
2797                                 LIMIT 1",
2798                                 dbesc($parent_uri)
2799                         );
2800                         if($r && count($r)) {
2801                                 $top_uri = $r[0]['parent-uri'];
2802
2803                                 // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
2804                                 $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
2805                                         `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
2806                                         LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2807                                         WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
2808                                         AND `item`.`uid` = %d
2809                                         $sql_extra
2810                                         LIMIT 1",
2811                                         dbesc($top_uri),
2812                                         dbesc($top_uri),
2813                                         dbesc($top_uri),
2814                                         intval($importer['importer_uid'])
2815                                 );
2816                                 if($r && count($r))
2817                                         $is_a_remote_comment = true;
2818                         }
2819
2820                         // Does this have the characteristics of a community or private group comment?
2821                         // If it's a reply to a wall post on a community/prvgroup page it's a
2822                         // valid community comment. Also forum_mode makes it valid for sure.
2823                         // If neither, it's not.
2824
2825                         if($is_a_remote_comment && $community) {
2826                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
2827                                         $is_a_remote_comment = false;
2828                                         logger('local_delivery: not a community reply');
2829                                 }
2830                         }
2831
2832                         if($is_a_remote_comment) {
2833                                 logger('local_delivery: received remote comment');
2834                                 $is_like = false;
2835                                 // remote reply to our post. Import and then notify everybody else.
2836
2837                                 $datarray = get_atom_elements($feed,$item);
2838
2839                                 $r = q("SELECT `id`, `uid`, `last-child`, `edited`, `body`  FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2840                                         dbesc($item_id),
2841                                         intval($importer['importer_uid'])
2842                                 );
2843
2844                                 // Update content if 'updated' changes
2845
2846                                 if(count($r)) {
2847                                         $iid = $r[0]['id'];
2848                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2849
2850                                                 // do not accept (ignore) an earlier edit than one we currently have.
2851                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2852                                                         continue;
2853
2854                                                 logger('received updated comment' , LOGGER_DEBUG);
2855                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2856                                                         dbesc($datarray['title']),
2857                                                         dbesc($datarray['body']),
2858                                                         dbesc($datarray['tag']),
2859                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2860                                                         dbesc($item_id),
2861                                                         intval($importer['importer_uid'])
2862                                                 );
2863
2864                                                 proc_run('php',"include/notifier.php","comment-import",$iid);
2865
2866                                         }
2867
2868                                         continue;
2869                                 }
2870
2871
2872
2873                                 $own = q("select name,url,thumb from contact where uid = %d and self = 1 limit 1",
2874                                         intval($importer['importer_uid'])
2875                                 );
2876
2877
2878                                 $datarray['type'] = 'remote-comment';
2879                                 $datarray['wall'] = 1;
2880                                 $datarray['parent-uri'] = $parent_uri;
2881                                 $datarray['uid'] = $importer['importer_uid'];
2882                                 $datarray['owner-name'] = $own[0]['name'];
2883                                 $datarray['owner-link'] = $own[0]['url'];
2884                                 $datarray['owner-avatar'] = $own[0]['thumb'];
2885                                 $datarray['contact-id'] = $importer['id'];
2886
2887                                 if(($datarray['verb'] === ACTIVITY_LIKE) || ($datarray['verb'] === ACTIVITY_DISLIKE)) {
2888                                         $is_like = true;
2889                                         $datarray['type'] = 'activity';
2890                                         $datarray['gravity'] = GRAVITY_LIKE;
2891                                         $datarray['last-child'] = 0;
2892                                         // only one like or dislike per person
2893                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`thr-parent` = '%s' or `parent-uri` = '%s') and deleted = 0 limit 1",
2894                                                 intval($datarray['uid']),
2895                                                 intval($datarray['contact-id']),
2896                                                 dbesc($datarray['verb']),
2897                                                 dbesc($datarray['parent-uri']),
2898                                                 dbesc($datarray['parent-uri'])
2899
2900                                         );
2901                                         if($r && count($r))
2902                                                 continue;
2903                                 }
2904
2905                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2906
2907                                         $xo = parse_xml_string($datarray['object'],false);
2908                                         $xt = parse_xml_string($datarray['target'],false);
2909
2910                                         if(($xt->type == ACTIVITY_OBJ_NOTE) && ($xt->id)) {
2911
2912                                                 // fetch the parent item
2913
2914                                                 $tagp = q("select * from item where uri = '%s' and uid = %d limit 1",
2915                                                         dbesc($xt->id),
2916                                                         intval($importer['importer_uid'])
2917                                                 );
2918                                                 if(! count($tagp))
2919                                                         continue;
2920
2921                                                 // extract tag, if not duplicate, and this user allows tags, add to parent item
2922
2923                                                 if($xo->id && $xo->content) {
2924                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
2925                                                         if(! (stristr($tagp[0]['tag'],$newtag))) {
2926                                                                 $i = q("SELECT `blocktags` FROM `user` where `uid` = %d LIMIT 1",
2927                                                                         intval($importer['importer_uid'])
2928                                                                 );
2929                                                                 if(count($i) && ! intval($i[0]['blocktags'])) {
2930                                                                         q("UPDATE item SET tag = '%s', `edited` = '%s' WHERE id = %d LIMIT 1",
2931                                                                                 dbesc($tagp[0]['tag'] . (strlen($tagp[0]['tag']) ? ',' : '') . $newtag),
2932                                                                                 intval($tagp[0]['id']),
2933                                                                                 dbesc(datetime_convert())
2934                                                                         );
2935                                                                 }
2936                                                         }
2937                                                 }
2938                                         }
2939                                 }
2940
2941
2942                                 $posted_id = item_store($datarray);
2943                                 $parent = 0;
2944
2945                                 if($posted_id) {
2946                                         $r = q("SELECT `parent`, `parent-uri` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
2947                                                 intval($posted_id),
2948                                                 intval($importer['importer_uid'])
2949                                         );
2950                                         if(count($r)) {
2951                                                 $parent = $r[0]['parent'];
2952                                                 $parent_uri = $r[0]['parent-uri'];
2953                                         }
2954
2955                                         if(! $is_like) {
2956                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
2957                                                         dbesc(datetime_convert()),
2958                                                         intval($importer['importer_uid']),
2959                                                         intval($r[0]['parent'])
2960                                                 );
2961
2962                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
2963                                                         dbesc(datetime_convert()),
2964                                                         intval($importer['importer_uid']),
2965                                                         intval($posted_id)
2966                                                 );
2967                                         }
2968
2969                                         if($posted_id && $parent) {
2970
2971                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
2972
2973                                                 if((! $is_like) && (! $importer['self'])) {
2974
2975                                                         require_once('include/enotify.php');
2976
2977                                                         notification(array(
2978                                                                 'type'         => NOTIFY_COMMENT,
2979                                                                 'notify_flags' => $importer['notify-flags'],
2980                                                                 'language'     => $importer['language'],
2981                                                                 'to_name'      => $importer['username'],
2982                                                                 'to_email'     => $importer['email'],
2983                                                                 'uid'          => $importer['importer_uid'],
2984                                                                 'item'         => $datarray,
2985                                                                 'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
2986                                                                 'source_name'  => stripslashes($datarray['author-name']),
2987                                                                 'source_link'  => $datarray['author-link'],
2988                                                                 'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
2989                                                                         ? $importer['thumb'] : $datarray['author-avatar']),
2990                                                                 'verb'         => ACTIVITY_POST,
2991                                                                 'otype'        => 'item',
2992                                                                 'parent'       => $parent,
2993                                                                 'parent_uri'   => $parent_uri,
2994                                                         ));
2995
2996                                                 }
2997                                         }
2998
2999                                         return 0;
3000                                         // NOTREACHED
3001                                 }
3002                         }
3003                         else {
3004
3005                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
3006
3007                                 $item_id  = $item->get_id();
3008                                 $datarray = get_atom_elements($feed,$item);
3009
3010                                 if($importer['rel'] == CONTACT_IS_FOLLOWER)
3011                                         continue;
3012
3013                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3014                                         dbesc($item_id),
3015                                         intval($importer['importer_uid'])
3016                                 );
3017
3018                                 // Update content if 'updated' changes
3019
3020                                 if(count($r)) {
3021                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
3022
3023                                                 // do not accept (ignore) an earlier edit than one we currently have.
3024                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3025                                                         continue;
3026
3027                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3028                                                         dbesc($datarray['title']),
3029                                                         dbesc($datarray['body']),
3030                                                         dbesc($datarray['tag']),
3031                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3032                                                         dbesc($item_id),
3033                                                         intval($importer['importer_uid'])
3034                                                 );
3035                                         }
3036
3037                                         // update last-child if it changes
3038
3039                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3040                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
3041                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
3042                                                         dbesc(datetime_convert()),
3043                                                         dbesc($parent_uri),
3044                                                         intval($importer['importer_uid'])
3045                                                 );
3046                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3047                                                         intval($allow[0]['data']),
3048                                                         dbesc(datetime_convert()),
3049                                                         dbesc($item_id),
3050                                                         intval($importer['importer_uid'])
3051                                                 );
3052                                         }
3053                                         continue;
3054                                 }
3055
3056                                 $datarray['parent-uri'] = $parent_uri;
3057                                 $datarray['uid'] = $importer['importer_uid'];
3058                                 $datarray['contact-id'] = $importer['id'];
3059                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
3060                                         $datarray['type'] = 'activity';
3061                                         $datarray['gravity'] = GRAVITY_LIKE;
3062                                         // only one like or dislike per person
3063                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s' OR `thr-parent` = '%s') limit 1",
3064                                                 intval($datarray['uid']),
3065                                                 intval($datarray['contact-id']),
3066                                                 dbesc($datarray['verb']),
3067                                                 dbesc($parent_uri),
3068                                                 dbesc($parent_uri)
3069                                         );
3070                                         if($r && count($r))
3071                                                 continue;
3072
3073                                 }
3074
3075                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3076
3077                                         $xo = parse_xml_string($datarray['object'],false);
3078                                         $xt = parse_xml_string($datarray['target'],false);
3079
3080                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
3081                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
3082                                                         dbesc($xt->id),
3083                                                         intval($importer['importer_uid'])
3084                                                 );
3085                                                 if(! count($r))
3086                                                         continue;
3087
3088                                                 // extract tag, if not duplicate, add to parent item
3089                                                 if($xo->content) {
3090                                                         if(! (stristr($r[0]['tag'],trim($xo->content)))) {
3091                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1",
3092                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
3093                                                                         intval($r[0]['id'])
3094                                                                 );
3095                                                         }
3096                                                 }
3097                                         }
3098                                 }
3099
3100                                 $posted_id = item_store($datarray);
3101
3102                                 // find out if our user is involved in this conversation and wants to be notified.
3103
3104                                 if(!x($datarray['type']) || $datarray['type'] != 'activity') {
3105
3106                                         $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
3107                                                 dbesc($top_uri),
3108                                                 intval($importer['importer_uid'])
3109                                         );
3110
3111                                         if(count($myconv)) {
3112                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
3113
3114                                                 // first make sure this isn't our own post coming back to us from a wall-to-wall event
3115                                                 if(! link_compare($datarray['author-link'],$importer_url)) {
3116
3117
3118                                                         foreach($myconv as $conv) {
3119
3120                                                                 // now if we find a match, it means we're in this conversation
3121
3122                                                                 if(! link_compare($conv['author-link'],$importer_url))
3123                                                                         continue;
3124
3125                                                                 require_once('include/enotify.php');
3126
3127                                                                 $conv_parent = $conv['parent'];
3128
3129                                                                 notification(array(
3130                                                                         'type'         => NOTIFY_COMMENT,
3131                                                                         'notify_flags' => $importer['notify-flags'],
3132                                                                         'language'     => $importer['language'],
3133                                                                         'to_name'      => $importer['username'],
3134                                                                         'to_email'     => $importer['email'],
3135                                                                         'uid'          => $importer['importer_uid'],
3136                                                                         'item'         => $datarray,
3137                                                                         'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
3138                                                                         'source_name'  => stripslashes($datarray['author-name']),
3139                                                                         'source_link'  => $datarray['author-link'],
3140                                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3141                                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3142                                                                         'verb'         => ACTIVITY_POST,
3143                                                                         'otype'        => 'item',
3144                                                                         'parent'       => $conv_parent,
3145                                                                         'parent_uri'   => $parent_uri
3146
3147                                                                 ));
3148
3149                                                                 // only send one notification
3150                                                                 break;
3151                                                         }
3152                                                 }
3153                                         }
3154                                 }
3155                                 continue;
3156                         }
3157                 }
3158
3159                 else {
3160
3161                         // Head post of a conversation. Have we seen it? If not, import it.
3162
3163
3164                         $item_id  = $item->get_id();
3165                         $datarray = get_atom_elements($feed,$item);
3166
3167                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
3168                                 $ev = bbtoevent($datarray['body']);
3169                                 if(x($ev,'desc') && x($ev,'start')) {
3170                                         $ev['cid'] = $importer['id'];
3171                                         $ev['uid'] = $importer['uid'];
3172                                         $ev['uri'] = $item_id;
3173                                         $ev['edited'] = $datarray['edited'];
3174                                         $ev['private'] = $datarray['private'];
3175
3176                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3177                                                 dbesc($item_id),
3178                                                 intval($importer['uid'])
3179                                         );
3180                                         if(count($r))
3181                                                 $ev['id'] = $r[0]['id'];
3182                                         $xyz = event_store($ev);
3183                                         continue;
3184                                 }
3185                         }
3186
3187                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3188                                 dbesc($item_id),
3189                                 intval($importer['importer_uid'])
3190                         );
3191
3192                         // Update content if 'updated' changes
3193
3194                         if(count($r)) {
3195                                 if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
3196
3197                                         // do not accept (ignore) an earlier edit than one we currently have.
3198                                         if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3199                                                 continue;
3200
3201                                         $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3202                                                 dbesc($datarray['title']),
3203                                                 dbesc($datarray['body']),
3204                                                 dbesc($datarray['tag']),
3205                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3206                                                 dbesc($item_id),
3207                                                 intval($importer['importer_uid'])
3208                                         );
3209                                 }
3210
3211                                 // update last-child if it changes
3212
3213                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3214                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
3215                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3216                                                 intval($allow[0]['data']),
3217                                                 dbesc(datetime_convert()),
3218                                                 dbesc($item_id),
3219                                                 intval($importer['importer_uid'])
3220                                         );
3221                                 }
3222                                 continue;
3223                         }
3224
3225                         // This is my contact on another system, but it's really me.
3226                         // Turn this into a wall post.
3227
3228                         if($importer['remote_self'])
3229                                 $datarray['wall'] = 1;
3230
3231                         $datarray['parent-uri'] = $item_id;
3232                         $datarray['uid'] = $importer['importer_uid'];
3233                         $datarray['contact-id'] = $importer['id'];
3234
3235
3236                         if(! link_compare($datarray['owner-link'],$importer['url'])) {
3237                                 // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
3238                                 // but otherwise there's a possible data mixup on the sender's system.
3239                                 // the tgroup delivery code called from item_store will correct it if it's a forum,
3240                                 // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
3241                                 logger('local_delivery: Correcting item owner.', LOGGER_DEBUG);
3242                                 $datarray['owner-name']   = $importer['senderName'];
3243                                 $datarray['owner-link']   = $importer['url'];
3244                                 $datarray['owner-avatar'] = $importer['thumb'];
3245                         }
3246
3247                         if(($importer['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['importer_uid'],$datarray)))
3248                                 continue;
3249
3250                         $posted_id = item_store($datarray);
3251
3252                         if(stristr($datarray['verb'],ACTIVITY_POKE)) {
3253                                 $verb = urldecode(substr($datarray['verb'],strpos($datarray['verb'],'#')+1));
3254                                 if(! $verb)
3255                                         continue;
3256                                 $xo = parse_xml_string($datarray['object'],false);
3257
3258                                 if(($xo->type == ACTIVITY_OBJ_PERSON) && ($xo->id)) {
3259
3260                                         // somebody was poked/prodded. Was it me?
3261
3262                                         $links = parse_xml_string("<links>".unxmlify($xo->link)."</links>",false);
3263
3264                                 foreach($links->link as $l) {
3265                                 $atts = $l->attributes();
3266                                 switch($atts['rel']) {
3267                                         case "alternate":
3268                                                                 $Blink = $atts['href'];
3269                                                                 break;
3270                                                         default:
3271                                                                 break;
3272                                     }
3273                                 }
3274                                         if($Blink && link_compare($Blink,$a->get_baseurl() . '/profile/' . $importer['nickname'])) {
3275
3276                                                 // send a notification
3277                                                 require_once('include/enotify.php');
3278
3279                                                 notification(array(
3280                                                         'type'         => NOTIFY_POKE,
3281                                                         'notify_flags' => $importer['notify-flags'],
3282                                                         'language'     => $importer['language'],
3283                                                         'to_name'      => $importer['username'],
3284                                                         'to_email'     => $importer['email'],
3285                                                         'uid'          => $importer['importer_uid'],
3286                                                         'item'         => $datarray,
3287                                                         'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
3288                                                         'source_name'  => stripslashes($datarray['author-name']),
3289                                                         'source_link'  => $datarray['author-link'],
3290                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3291                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3292                                                         'verb'         => $datarray['verb'],
3293                                                         'otype'        => 'person',
3294                                                         'activity'     => $verb,
3295
3296                                                 ));
3297                                         }
3298                                 }
3299                         }
3300
3301                         continue;
3302                 }
3303         }
3304
3305         return 0;
3306         // NOTREACHED
3307
3308 }
3309
3310
3311 function new_follower($importer,$contact,$datarray,$item,$sharing = false) {
3312         $url = notags(trim($datarray['author-link']));
3313         $name = notags(trim($datarray['author-name']));
3314         $photo = notags(trim($datarray['author-avatar']));
3315
3316         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
3317         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
3318                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
3319
3320         if(is_array($contact)) {
3321                 if(($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
3322                         || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
3323                         $r = q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d LIMIT 1",
3324                                 intval(CONTACT_IS_FRIEND),
3325                                 intval($contact['id']),
3326                                 intval($importer['uid'])
3327                         );
3328                 }
3329                 // send email notification to owner?
3330         }
3331         else {
3332
3333                 // create contact record
3334
3335                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
3336                         `blocked`, `readonly`, `pending`, `writable` )
3337                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
3338                         intval($importer['uid']),
3339                         dbesc(datetime_convert()),
3340                         dbesc($url),
3341                         dbesc(normalise_link($url)),
3342                         dbesc($name),
3343                         dbesc($nick),
3344                         dbesc($photo),
3345                         dbesc(($sharing) ? NETWORK_ZOT : NETWORK_OSTATUS),
3346                         intval(($sharing) ? CONTACT_IS_SHARING : CONTACT_IS_FOLLOWER)
3347                 );
3348                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
3349                                 intval($importer['uid']),
3350                                 dbesc($url)
3351                 );
3352                 if(count($r))
3353                                 $contact_record = $r[0];
3354
3355                 // create notification
3356                 $hash = random_string();
3357
3358                 if(is_array($contact_record)) {
3359                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
3360                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
3361                                 intval($importer['uid']),
3362                                 intval($contact_record['id']),
3363                                 dbesc($hash),
3364                                 dbesc(datetime_convert())
3365                         );
3366                 }
3367                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
3368                         intval($importer['uid'])
3369                 );
3370                 $a = get_app();
3371                 if(count($r)) {
3372
3373                         if(intval($r[0]['def_gid'])) {
3374                                 require_once('include/group.php');
3375                                 group_add_member($r[0]['uid'],'',$contact_record['id'],$r[0]['def_gid']);
3376                         }
3377
3378                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) && ($r[0]['page-flags'] == PAGE_NORMAL)) {
3379                                 $email_tpl = get_intltext_template('follow_notify_eml.tpl');
3380                                 $email = replace_macros($email_tpl, array(
3381                                         '$requestor' => ((strlen($name)) ? $name : t('[Name Withheld]')),
3382                                         '$url' => $url,
3383                                         '$myname' => $r[0]['username'],
3384                                         '$siteurl' => $a->get_baseurl(),
3385                                         '$sitename' => $a->config['sitename']
3386                                 ));
3387                                 $res = mail($r[0]['email'],
3388                                         (($sharing) ? t('A new person is sharing with you at ') : t("You have a new follower at ")) . $a->config['sitename'],
3389                                         $email,
3390                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
3391                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
3392                                         . 'Content-transfer-encoding: 8bit' );
3393
3394                         }
3395                 }
3396         }
3397 }
3398
3399 function lose_follower($importer,$contact,$datarray,$item) {
3400
3401         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
3402                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
3403                         intval(CONTACT_IS_SHARING),
3404                         intval($contact['id'])
3405                 );
3406         }
3407         else {
3408                 contact_remove($contact['id']);
3409         }
3410 }
3411
3412 function lose_sharer($importer,$contact,$datarray,$item) {
3413
3414         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
3415                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
3416                         intval(CONTACT_IS_FOLLOWER),
3417                         intval($contact['id'])
3418                 );
3419         }
3420         else {
3421                 contact_remove($contact['id']);
3422         }
3423 }
3424
3425
3426 function subscribe_to_hub($url,$importer,$contact,$hubmode = 'subscribe') {
3427
3428         $a = get_app();
3429
3430         if(is_array($importer)) {
3431                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
3432                         intval($importer['uid'])
3433                 );
3434         }
3435
3436         // Diaspora has different message-ids in feeds than they do
3437         // through the direct Diaspora protocol. If we try and use
3438         // the feed, we'll get duplicates. So don't.
3439
3440         if((! count($r)) || $contact['network'] === NETWORK_DIASPORA)
3441                 return;
3442
3443         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
3444
3445         // Use a single verify token, even if multiple hubs
3446
3447         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
3448
3449         $params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
3450
3451         logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
3452
3453         if(! strlen($contact['hub-verify'])) {
3454                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
3455                         dbesc($verify_token),
3456                         intval($contact['id'])
3457                 );
3458         }
3459
3460         post_url($url,$params);
3461
3462         logger('subscribe_to_hub: returns: ' . $a->get_curl_code(), LOGGER_DEBUG);
3463
3464         return;
3465
3466 }
3467
3468
3469 function atom_author($tag,$name,$uri,$h,$w,$photo) {
3470         $o = '';
3471         if(! $tag)
3472                 return $o;
3473         $name = xmlify($name);
3474         $uri = xmlify($uri);
3475         $h = intval($h);
3476         $w = intval($w);
3477         $photo = xmlify($photo);
3478
3479
3480         $o .= "<$tag>\r\n";
3481         $o .= "<name>$name</name>\r\n";
3482         $o .= "<uri>$uri</uri>\r\n";
3483         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
3484         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
3485
3486         call_hooks('atom_author', $o);
3487
3488         $o .= "</$tag>\r\n";
3489         return $o;
3490 }
3491
3492 function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) {
3493
3494         $a = get_app();
3495
3496         if(! $item['parent'])
3497                 return;
3498
3499         if($item['deleted'])
3500                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
3501
3502
3503         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
3504                 $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
3505         else
3506                 $body = $item['body'];
3507
3508         $o = "\r\n\r\n<entry>\r\n";
3509
3510         if(is_array($author))
3511                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
3512         else
3513                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
3514         if(strlen($item['owner-name']))
3515                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
3516
3517         if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
3518                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
3519                 $o .= '<thr:in-reply-to ref="' . xmlify($parent_item) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['parent']) . '" />' . "\r\n";
3520         }
3521
3522         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
3523         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
3524         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
3525         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
3526         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
3527         $o .= '<content type="' . $type . '" >' . xmlify((($type === 'html') ? bbcode($body) : $body)) . '</content>' . "\r\n";
3528         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
3529         if($comment)
3530                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
3531
3532         if($item['location']) {
3533                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
3534                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
3535         }
3536
3537         if($item['coord'])
3538                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
3539
3540         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
3541                 $o .= '<dfrn:private>' . (($item['private']) ? $item['private'] : 1) . '</dfrn:private>' . "\r\n";
3542
3543         if($item['extid'])
3544                 $o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
3545         if($item['bookmark'])
3546                 $o .= '<dfrn:bookmark>true</dfrn:bookmark>' . "\r\n";
3547
3548         if($item['app'])
3549                 $o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
3550
3551         if($item['guid'])
3552                 $o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
3553
3554         if($item['signed_text']) {
3555                 $sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
3556                 $o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
3557         }
3558
3559         $verb = construct_verb($item);
3560         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
3561         $actobj = construct_activity_object($item);
3562         if(strlen($actobj))
3563                 $o .= $actobj;
3564         $actarg = construct_activity_target($item);
3565         if(strlen($actarg))
3566                 $o .= $actarg;
3567
3568         $tags = item_getfeedtags($item);
3569         if(count($tags)) {
3570                 foreach($tags as $t) {
3571                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
3572                 }
3573         }
3574
3575         $o .= item_getfeedattach($item);
3576
3577         $mentioned = get_mentions($item);
3578         if($mentioned)
3579                 $o .= $mentioned;
3580
3581         call_hooks('atom_entry', $o);
3582
3583         $o .= '</entry>' . "\r\n";
3584
3585         return $o;
3586 }
3587
3588 function fix_private_photos($s, $uid, $item = null, $cid = 0) {
3589         $a = get_app();
3590
3591         logger('fix_private_photos', LOGGER_DEBUG);
3592         $site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
3593
3594         $orig_body = $s;
3595         $new_body = '';
3596
3597         $img_start = strpos($orig_body, '[img');
3598         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
3599         $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
3600         while( ($img_st_close !== false) && ($img_len !== false) ) {
3601
3602                 $img_st_close++; // make it point to AFTER the closing bracket
3603                 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
3604
3605                 logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
3606
3607
3608                 if(stristr($image , $site . '/photo/')) {
3609                         // Only embed locally hosted photos
3610                         $replace = false;
3611                         $i = basename($image);
3612                         $i = str_replace(array('.jpg','.png'),array('',''),$i);
3613                         $x = strpos($i,'-');
3614
3615                         if($x) {
3616                                 $res = substr($i,$x+1);
3617                                 $i = substr($i,0,$x);
3618                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
3619                                         dbesc($i),
3620                                         intval($res),
3621                                         intval($uid)
3622                                 );
3623                                 if(count($r)) {
3624
3625                                         // Check to see if we should replace this photo link with an embedded image
3626                                         // 1. No need to do so if the photo is public
3627                                         // 2. If there's a contact-id provided, see if they're in the access list
3628                                         //    for the photo. If so, embed it.
3629                                         // 3. Otherwise, if we have an item, see if the item permissions match the photo
3630                                         //    permissions, regardless of order but first check to see if they're an exact
3631                                         //    match to save some processing overhead.
3632
3633                                         if(has_permissions($r[0])) {
3634                                                 if($cid) {
3635                                                         $recips = enumerate_permissions($r[0]);
3636                                                         if(in_array($cid, $recips)) {
3637                                                                 $replace = true;
3638                                                         }
3639                                                 }
3640                                                 elseif($item) {
3641                                                         if(compare_permissions($item,$r[0]))
3642                                                                 $replace = true;
3643                                                 }
3644                                         }
3645                                         if($replace) {
3646                                                 $data = $r[0]['data'];
3647                                                 $type = $r[0]['type'];
3648
3649                                                 // If a custom width and height were specified, apply before embedding
3650                                                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
3651                                                         logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
3652
3653                                                         $width = intval($match[1]);
3654                                                         $height = intval($match[2]);
3655
3656                                                         $ph = new Photo($data, $type);
3657                                                         if($ph->is_valid()) {
3658                                                                 $ph->scaleImage(max($width, $height));
3659                                                                 $data = $ph->imageString();
3660                                                                 $type = $ph->getType();
3661                                                         }
3662                                                 }
3663
3664                                                 logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
3665                                                 $image = 'data:' . $type . ';base64,' . base64_encode($data);
3666                                                 logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
3667                                         }
3668                                 }
3669                         }
3670                 }
3671
3672                 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
3673                 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
3674                 if($orig_body === false)
3675                         $orig_body = '';
3676
3677                 $img_start = strpos($orig_body, '[img');
3678                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
3679                 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
3680         }
3681
3682         $new_body = $new_body . $orig_body;
3683
3684         return($new_body);
3685 }
3686
3687
3688 function has_permissions($obj) {
3689         if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != ''))
3690                 return true;
3691         return false;
3692 }
3693
3694 function compare_permissions($obj1,$obj2) {
3695         // first part is easy. Check that these are exactly the same.
3696         if(($obj1['allow_cid'] == $obj2['allow_cid'])
3697                 && ($obj1['allow_gid'] == $obj2['allow_gid'])
3698                 && ($obj1['deny_cid'] == $obj2['deny_cid'])
3699                 && ($obj1['deny_gid'] == $obj2['deny_gid']))
3700                 return true;
3701
3702         // This is harder. Parse all the permissions and compare the resulting set.
3703
3704         $recipients1 = enumerate_permissions($obj1);
3705         $recipients2 = enumerate_permissions($obj2);
3706         sort($recipients1);
3707         sort($recipients2);
3708         if($recipients1 == $recipients2)
3709                 return true;
3710         return false;
3711 }
3712
3713 // returns an array of contact-ids that are allowed to see this object
3714
3715 function enumerate_permissions($obj) {
3716         require_once('include/group.php');
3717         $allow_people = expand_acl($obj['allow_cid']);
3718         $allow_groups = expand_groups(expand_acl($obj['allow_gid']));
3719         $deny_people  = expand_acl($obj['deny_cid']);
3720         $deny_groups  = expand_groups(expand_acl($obj['deny_gid']));
3721         $recipients   = array_unique(array_merge($allow_people,$allow_groups));
3722         $deny         = array_unique(array_merge($deny_people,$deny_groups));
3723         $recipients   = array_diff($recipients,$deny);
3724         return $recipients;
3725 }
3726
3727 function item_getfeedtags($item) {
3728         $ret = array();
3729         $matches = false;
3730         $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
3731         if($cnt) {
3732                 for($x = 0; $x < $cnt; $x ++) {
3733                         if($matches[1][$x])
3734                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
3735                 }
3736         }
3737         $matches = false;
3738         $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
3739         if($cnt) {
3740                 for($x = 0; $x < $cnt; $x ++) {
3741                         if($matches[1][$x])
3742                                 $ret[] = array('@',$matches[1][$x], $matches[2][$x]);
3743                 }
3744         }
3745         return $ret;
3746 }
3747
3748 function item_getfeedattach($item) {
3749         $ret = '';
3750         $arr = explode(',',$item['attach']);
3751         if(count($arr)) {
3752                 foreach($arr as $r) {
3753                         $matches = false;
3754                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
3755                         if($cnt) {
3756                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
3757                                 if(intval($matches[2]))
3758                                         $ret .= 'length="' . intval($matches[2]) . '" ';
3759                                 if($matches[4] !== ' ')
3760                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
3761                                 $ret .= ' />' . "\r\n";
3762                         }
3763                 }
3764         }
3765         return $ret;
3766 }
3767
3768
3769
3770 function item_expire($uid,$days) {
3771
3772         if((! $uid) || ($days < 1))
3773                 return;
3774
3775         // $expire_network_only = save your own wall posts
3776         // and just expire conversations started by others
3777
3778         $expire_network_only = get_pconfig($uid,'expire','network_only');
3779         $sql_extra = ((intval($expire_network_only)) ? " AND wall = 0 " : "");
3780
3781         $r = q("SELECT * FROM `item`
3782                 WHERE `uid` = %d
3783                 AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY
3784                 AND `id` = `parent`
3785                 $sql_extra
3786                 AND `deleted` = 0",
3787                 intval($uid),
3788                 intval($days)
3789         );
3790
3791         if(! count($r))
3792                 return;
3793
3794         $expire_items = get_pconfig($uid, 'expire','items');
3795         $expire_items = (($expire_items===false)?1:intval($expire_items)); // default if not set: 1
3796
3797         $expire_notes = get_pconfig($uid, 'expire','notes');
3798         $expire_notes = (($expire_notes===false)?1:intval($expire_notes)); // default if not set: 1
3799
3800         $expire_starred = get_pconfig($uid, 'expire','starred');
3801         $expire_starred = (($expire_starred===false)?1:intval($expire_starred)); // default if not set: 1
3802
3803         $expire_photos = get_pconfig($uid, 'expire','photos');
3804         $expire_photos = (($expire_photos===false)?0:intval($expire_photos)); // default if not set: 0
3805
3806         logger('expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
3807
3808         foreach($r as $item) {
3809
3810                 // don't expire filed items
3811
3812                 if(strpos($item['file'],'[') !== false)
3813                         continue;
3814
3815                 // Only expire posts, not photos and photo comments
3816
3817                 if($expire_photos==0 && strlen($item['resource-id']))
3818                         continue;
3819                 if($expire_starred==0 && intval($item['starred']))
3820                         continue;
3821                 if($expire_notes==0 && $item['type']=='note')
3822                         continue;
3823                 if($expire_items==0 && $item['type']!='note')
3824                         continue;
3825
3826                 drop_item($item['id'],false);
3827         }
3828
3829         proc_run('php',"include/notifier.php","expire","$uid");
3830
3831 }
3832
3833
3834 function drop_items($items) {
3835         $uid = 0;
3836
3837         if(! local_user() && ! remote_user())
3838                 return;
3839
3840         if(count($items)) {
3841                 foreach($items as $item) {
3842                         $owner = drop_item($item,false);
3843                         if($owner && ! $uid)
3844                                 $uid = $owner;
3845                 }
3846         }
3847
3848         // multiple threads may have been deleted, send an expire notification
3849
3850         if($uid)
3851                 proc_run('php',"include/notifier.php","expire","$uid");
3852 }
3853
3854
3855 function drop_item($id,$interactive = true) {
3856
3857         $a = get_app();
3858
3859         // locate item to be deleted
3860
3861         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
3862                 intval($id)
3863         );
3864
3865         if(! count($r)) {
3866                 if(! $interactive)
3867                         return 0;
3868                 notice( t('Item not found.') . EOL);
3869                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3870         }
3871
3872         $item = $r[0];
3873
3874         $owner = $item['uid'];
3875
3876         $cid = 0;
3877
3878         // check if logged in user is either the author or owner of this item
3879
3880         if(is_array($_SESSION['remote'])) {
3881                 foreach($_SESSION['remote'] as $visitor) {
3882                         if($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
3883                                 $cid = $visitor['cid'];
3884                                 break;
3885                         }
3886                 }
3887         }
3888
3889
3890         if((local_user() == $item['uid']) || ($cid) || (! $interactive)) {
3891
3892                 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
3893                 // delete the item
3894
3895                 $r = q("UPDATE `item` SET `deleted` = 1, `title` = '', `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
3896                         dbesc(datetime_convert()),
3897                         dbesc(datetime_convert()),
3898                         intval($item['id'])
3899                 );
3900
3901                 // clean up categories and tags so they don't end up as orphans
3902
3903                 $matches = false;
3904                 $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
3905                 if($cnt) {
3906                         foreach($matches as $mtch) {
3907                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
3908                         }
3909                 }
3910
3911                 $matches = false;
3912
3913                 $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
3914                 if($cnt) {
3915                         foreach($matches as $mtch) {
3916                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
3917                         }
3918                 }
3919
3920                 // If item is a link to a photo resource, nuke all the associated photos
3921                 // (visitors will not have photo resources)
3922                 // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
3923                 // generate a resource-id and therefore aren't intimately linked to the item.
3924
3925                 if(strlen($item['resource-id'])) {
3926                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
3927                                 dbesc($item['resource-id']),
3928                                 intval($item['uid'])
3929                         );
3930                         // ignore the result
3931                 }
3932
3933                 // If item is a link to an event, nuke the event record.
3934
3935                 if(intval($item['event-id'])) {
3936                         q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
3937                                 intval($item['event-id']),
3938                                 intval($item['uid'])
3939                         );
3940                         // ignore the result
3941                 }
3942
3943                 // clean up item_id and sign meta-data tables
3944
3945                 $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
3946                         intval($item['id']),
3947                         intval($item['uid'])
3948                 );
3949
3950                 $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
3951                         intval($item['id']),
3952                         intval($item['uid'])
3953                 );
3954
3955                 // If it's the parent of a comment thread, kill all the kids
3956
3957                 if($item['uri'] == $item['parent-uri']) {
3958                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
3959                                 WHERE `parent-uri` = '%s' AND `uid` = %d ",
3960                                 dbesc(datetime_convert()),
3961                                 dbesc(datetime_convert()),
3962                                 dbesc($item['parent-uri']),
3963                                 intval($item['uid'])
3964                         );
3965                         // ignore the result
3966                 }
3967                 else {
3968                         // ensure that last-child is set in case the comment that had it just got wiped.
3969                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
3970                                 dbesc(datetime_convert()),
3971                                 dbesc($item['parent-uri']),
3972                                 intval($item['uid'])
3973                         );
3974                         // who is the last child now?
3975                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
3976                                 dbesc($item['parent-uri']),
3977                                 intval($item['uid'])
3978                         );
3979                         if(count($r)) {
3980                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
3981                                         intval($r[0]['id'])
3982                                 );
3983                         }
3984
3985                         // Add a relayable_retraction signature for Diaspora.
3986                         store_diaspora_retract_sig($item, $a->user, $a->get_baseurl());
3987                 }
3988                 $drop_id = intval($item['id']);
3989
3990                 // send the notification upstream/downstream as the case may be
3991
3992                 proc_run('php',"include/notifier.php","drop","$drop_id");
3993
3994                 if(! $interactive)
3995                         return $owner;
3996                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3997                 //NOTREACHED
3998         }
3999         else {
4000                 if(! $interactive)
4001                         return 0;
4002                 notice( t('Permission denied.') . EOL);
4003                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4004                 //NOTREACHED
4005         }
4006
4007 }
4008
4009
4010 function first_post_date($uid,$wall = false) {
4011         $r = q("select id, created from item
4012                 where uid = %d and wall = %d and deleted = 0 and visible = 1 AND moderated = 0
4013                 and id = parent
4014                 order by created asc limit 1",
4015                 intval($uid),
4016                 intval($wall ? 1 : 0)
4017         );
4018         if(count($r)) {
4019 //              logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
4020                 return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10);
4021         }
4022         return false;
4023 }
4024
4025 function posted_dates($uid,$wall) {
4026         $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
4027
4028         $dthen = first_post_date($uid,$wall);
4029         if(! $dthen)
4030                 return array();
4031
4032         // If it's near the end of a long month, backup to the 28th so that in
4033         // consecutive loops we'll always get a whole month difference.
4034
4035         if(intval(substr($dnow,8)) > 28)
4036                 $dnow = substr($dnow,0,8) . '28';
4037         if(intval(substr($dthen,8)) > 28)
4038                 $dnow = substr($dthen,0,8) . '28';
4039
4040         $ret = array();
4041         // Starting with the current month, get the first and last days of every
4042         // month down to and including the month of the first post
4043         while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
4044                 $dstart = substr($dnow,0,8) . '01';
4045                 $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
4046                 $start_month = datetime_convert('','',$dstart,'Y-m-d');
4047                 $end_month = datetime_convert('','',$dend,'Y-m-d');
4048                 $str = day_translate(datetime_convert('','',$dnow,'F Y'));
4049                 $ret[] = array($str,$end_month,$start_month);
4050                 $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
4051         }
4052         return $ret;
4053 }
4054
4055
4056 function posted_date_widget($url,$uid,$wall) {
4057         $o = '';
4058
4059         if(! feature_enabled($uid,'archives'))
4060                 return $o;
4061
4062         // For former Facebook folks that left because of "timeline"
4063
4064 /*      if($wall && intval(get_pconfig($uid,'system','no_wall_archive_widget')))
4065                 return $o;*/
4066
4067         $ret = posted_dates($uid,$wall);
4068         if(! count($ret))
4069                 return $o;
4070
4071         $o = replace_macros(get_markup_template('posted_date_widget.tpl'),array(
4072                 '$title' => t('Archives'),
4073                 '$size' => ((count($ret) > 6) ? 6 : count($ret)),
4074                 '$url' => $url,
4075                 '$dates' => $ret
4076         ));
4077         return $o;
4078 }
4079
4080 function store_diaspora_retract_sig($item, $user, $baseurl) {
4081         // Note that we can't add a target_author_signature
4082         // if the comment was deleted by a remote user. That should be ok, because if a remote user is deleting
4083         // the comment, that means we're the home of the post, and Diaspora will only
4084         // check the parent_author_signature of retractions that it doesn't have to relay further
4085         //
4086         // I don't think this function gets called for an "unlike," but I'll check anyway
4087
4088         $enabled = intval(get_config('system','diaspora_enabled'));
4089         if(! $enabled) {
4090                 logger('drop_item: diaspora support disabled, not storing retraction signature', LOGGER_DEBUG);
4091                 return;
4092         }
4093
4094         logger('drop_item: storing diaspora retraction signature');
4095
4096         $signed_text = $item['guid'] . ';' . ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
4097
4098         if(local_user() == $item['uid']) {
4099
4100                 $handle = $user['nickname'] . '@' . substr($baseurl, strpos($baseurl,'://') + 3);
4101                 $authorsig = base64_encode(rsa_sign($signed_text,$user['prvkey'],'sha256'));
4102         }
4103         else {
4104                 $r = q("SELECT `nick`, `url` FROM `contact` WHERE `id` = '%d' LIMIT 1",
4105                         $item['contact-id'] // If this function gets called, drop_item() has already checked remote_user() == $item['contact-id']
4106                 );
4107                 if(count($r)) {
4108                         // The below handle only works for NETWORK_DFRN. I think that's ok, because this function
4109                         // only handles DFRN deletes
4110                         $handle_baseurl_start = strpos($r['url'],'://') + 3;
4111                         $handle_baseurl_length = strpos($r['url'],'/profile') - $handle_baseurl_start;
4112                         $handle = $r['nick'] . '@' . substr($r['url'], $handle_baseurl_start, $handle_baseurl_length);
4113                         $authorsig = '';
4114                 }
4115         }
4116
4117         if(isset($handle))
4118                 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
4119                         intval($item['id']),
4120                         dbesc($signed_text),
4121                         dbesc($authorsig),
4122                         dbesc($handle)
4123                 );
4124
4125         return;
4126 }