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 require_once('include/tags.php');
   9 require_once('include/files.php');
  10 require_once('include/text.php');
  11 require_once('include/email.php');
  12 require_once('include/ostatus_conversation.php');
  13 require_once('include/threads.php');
  14
  15 function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
  16
  17
  18         $sitefeed    = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
  19         $public_feed = (($dfrn_id) ? false : true);
  20         $starred     = false;   // not yet implemented, possible security issues
  21         $converse    = false;
  22
  23         if($public_feed && $a->argc > 2) {
  24                 for($x = 2; $x < $a->argc; $x++) {
  25                         if($a->argv[$x] == 'converse')
  26                                 $converse = true;
  27                         if($a->argv[$x] == 'starred')
  28                                 $starred = true;
  29                         if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
  30                                 $category = $a->argv[$x+1];
  31                 }
  32         }
  33
  34
  35
  36         // default permissions - anonymous user
  37
  38         $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid`  = '' AND `deny_gid`  = '' ";
  39
  40         $r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
  41                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
  42                 WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
  43                 dbesc($owner_nick)
  44         );
  45
  46         if(! count($r))
  47                 killme();
  48
  49         $owner = $r[0];
  50         $owner_id = $owner['user_uid'];
  51         $owner_nick = $owner['nickname'];
  52
  53         $birthday = feed_birthday($owner_id,$owner['timezone']);
  54
  55         $sql_post_table = "";
  56
  57         if(! $public_feed) {
  58
  59                 $sql_extra = '';
  60                 switch($direction) {
  61                         case (-1):
  62                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
  63                                 $my_id = $dfrn_id;
  64                                 break;
  65                         case 0:
  66                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  67                                 $my_id = '1:' . $dfrn_id;
  68                                 break;
  69                         case 1:
  70                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  71                                 $my_id = '0:' . $dfrn_id;
  72                                 break;
  73                         default:
  74                                 return false;
  75                                 break; // NOTREACHED
  76                 }
  77
  78                 $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
  79                         intval($owner_id)
  80                 );
  81
  82                 if(! count($r))
  83                         killme();
  84
  85                 $contact = $r[0];
  86                 require_once('include/security.php');
  87                 $groups = init_groups_visitor($contact['id']);
  88
  89                 if(count($groups)) {
  90                         for($x = 0; $x < count($groups); $x ++)
  91                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  92                         $gs = implode('|', $groups);
  93                 }
  94                 else
  95                         $gs = '<<>>' ; // Impossible to match
  96
  97                 $sql_extra = sprintf("
  98                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
  99                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
 100                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
 101                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
 102                 ",
 103                         intval($contact['id']),
 104                         intval($contact['id']),
 105                         dbesc($gs),
 106                         dbesc($gs)
 107                 );
 108         }
 109
 110         if($public_feed)
 111                 $sort = 'DESC';
 112         else
 113                 $sort = 'ASC';
 114
 115         if(! strlen($last_update))
 116                 $last_update = 'now -30 days';
 117
 118         if(isset($category)) {
 119                 $sql_post_table = sprintf("INNER JOIN (SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d ORDER BY `tid` DESC) AS `term` ON `item`.`id` = `term`.`oid` ",
 120                                 dbesc(protect_sprintf($category)), intval(TERM_OBJ_POST), intval(TERM_CATEGORY), intval($owner_id));
 121                 //$sql_extra .= file_tag_file_query('item',$category,'category');
 122         }
 123
 124         if($public_feed) {
 125                 if(! $converse)
 126                         $sql_extra .= " AND `contact`.`self` = 1 ";
 127         }
 128
 129         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
 130
 131         //      AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
 132         //      dbesc($check_date),
 133
 134         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
 135                 `contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
 136                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
 137                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
 138                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
 139                 `sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
 140                 FROM `item` $sql_post_table
 141                 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 142                 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 143                 LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
 144                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
 145                 AND `item`.`wall` = 1 AND `item`.`changed` > '%s'
 146                 $sql_extra
 147                 ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
 148                 intval($owner_id),
 149                 dbesc($check_date),
 150                 dbesc($sort)
 151         );
 152
 153         // Will check further below if this actually returned results.
 154         // We will provide an empty feed if that is the case.
 155
 156         $items = $r;
 157
 158         $feed_template = get_markup_template(($dfrn_id) ? 'atom_feed_dfrn.tpl' : 'atom_feed.tpl');
 159
 160         $atom = '';
 161
 162         $hubxml = feed_hublinks();
 163
 164         $salmon = feed_salmonlinks($owner_nick);
 165
 166         $alternatelink = $owner['url'];
 167
 168         if(isset($category))
 169                 $alternatelink .= "/category/".$category;
 170
 171         $atom .= replace_macros($feed_template, array(
 172                 '$version'      => xmlify(FRIENDICA_VERSION),
 173                 '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 174                 '$feed_title'   => xmlify($owner['name']),
 175                 '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
 176                 '$hub'          => $hubxml,
 177                 '$salmon'       => $salmon,
 178                 '$alternatelink' => xmlify($alternatelink),
 179                 '$name'         => xmlify($owner['name']),
 180                 '$profile_page' => xmlify($owner['url']),
 181                 '$photo'        => xmlify($owner['photo']),
 182                 '$thumb'        => xmlify($owner['thumb']),
 183                 '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 184                 '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 185                 '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 186                 '$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : ''),
 187                 '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 188         ));
 189
 190         call_hooks('atom_feed', $atom);
 191
 192         if(! count($items)) {
 193
 194                 call_hooks('atom_feed_end', $atom);
 195
 196                 $atom .= '</feed>' . "\r\n";
 197                 return $atom;
 198         }
 199
 200         foreach($items as $item) {
 201
 202                 // prevent private email from leaking.
 203                 if($item['network'] === NETWORK_MAIL)
 204                         continue;
 205
 206                 // public feeds get html, our own nodes use bbcode
 207
 208                 if($public_feed) {
 209                         $type = 'html';
 210                         // catch any email that's in a public conversation and make sure it doesn't leak
 211                         if($item['private'])
 212                                 continue;
 213                 }
 214                 else {
 215                         $type = 'text';
 216                 }
 217
 218                 $atom .= atom_entry($item,$type,null,$owner,true);
 219         }
 220
 221         call_hooks('atom_feed_end', $atom);
 222
 223         $atom .= '</feed>' . "\r\n";
 224
 225         return $atom;
 226 }
 227
 228
 229 function construct_verb($item) {
 230         if($item['verb'])
 231                 return $item['verb'];
 232         return ACTIVITY_POST;
 233 }
 234
 235 function construct_activity_object($item) {
 236
 237         if($item['object']) {
 238                 $o = '<as:object>' . "\r\n";
 239                 $r = parse_xml_string($item['object'],false);
 240
 241
 242                 if(! $r)
 243                         return '';
 244                 if($r->type)
 245                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 246                 if($r->id)
 247                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 248                 if($r->title)
 249                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 250                 if($r->link) {
 251                         if(substr($r->link,0,1) === '<') {
 252                                 // patch up some facebook "like" activity objects that got stored incorrectly
 253                                 // for a couple of months prior to 9-Jun-2011 and generated bad XML.
 254                                 // we can probably remove this hack here and in the following function in a few months time.
 255                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 256                                         $r->link = str_replace('&','&amp;', $r->link);
 257                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 258                                 $o .= $r->link;
 259                         }
 260                         else
 261                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 262                 }
 263                 if($r->content)
 264                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 265                 $o .= '</as:object>' . "\r\n";
 266                 return $o;
 267         }
 268
 269         return '';
 270 }
 271
 272 function construct_activity_target($item) {
 273
 274         if($item['target']) {
 275                 $o = '<as:target>' . "\r\n";
 276                 $r = parse_xml_string($item['target'],false);
 277                 if(! $r)
 278                         return '';
 279                 if($r->type)
 280                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 281                 if($r->id)
 282                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 283                 if($r->title)
 284                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 285                 if($r->link) {
 286                         if(substr($r->link,0,1) === '<') {
 287                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 288                                         $r->link = str_replace('&','&amp;', $r->link);
 289                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 290                                 $o .= $r->link;
 291                         }
 292                         else
 293                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 294                 }
 295                 if($r->content)
 296                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 297                 $o .= '</as:target>' . "\r\n";
 298                 return $o;
 299         }
 300
 301         return '';
 302 }
 303
 304 /* limit_body_size()
 305  *
 306  *              The purpose of this function is to apply system message length limits to
 307  *              imported messages without including any embedded photos in the length
 308  */
 309 if(! function_exists('limit_body_size')) {
 310 function limit_body_size($body) {
 311
 312 //      logger('limit_body_size: start', LOGGER_DEBUG);
 313
 314         $maxlen = get_max_import_size();
 315
 316         // If the length of the body, including the embedded images, is smaller
 317         // than the maximum, then don't waste time looking for the images
 318         if($maxlen && (strlen($body) > $maxlen)) {
 319
 320                 logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
 321
 322                 $orig_body = $body;
 323                 $new_body = '';
 324                 $textlen = 0;
 325                 $max_found = false;
 326
 327                 $img_start = strpos($orig_body, '[img');
 328                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 329                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 330                 while(($img_st_close !== false) && ($img_end !== false)) {
 331
 332                         $img_st_close++; // make it point to AFTER the closing bracket
 333                         $img_end += $img_start;
 334                         $img_end += strlen('[/img]');
 335
 336                         if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 337                                 // This is an embedded image
 338
 339                                 if( ($textlen + $img_start) > $maxlen ) {
 340                                         if($textlen < $maxlen) {
 341                                                 logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
 342                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 343                                                 $textlen = $maxlen;
 344                                         }
 345                                 }
 346                                 else {
 347                                         $new_body = $new_body . substr($orig_body, 0, $img_start);
 348                                         $textlen += $img_start;
 349                                 }
 350
 351                                 $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
 352                         }
 353                         else {
 354
 355                                 if( ($textlen + $img_end) > $maxlen ) {
 356                                         if($textlen < $maxlen) {
 357                                                 logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
 358                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 359                                                 $textlen = $maxlen;
 360                                         }
 361                                 }
 362                                 else {
 363                                         $new_body = $new_body . substr($orig_body, 0, $img_end);
 364                                         $textlen += $img_end;
 365                                 }
 366                         }
 367                         $orig_body = substr($orig_body, $img_end);
 368
 369                         if($orig_body === false) // in case the body ends on a closing image tag
 370                                 $orig_body = '';
 371
 372                         $img_start = strpos($orig_body, '[img');
 373                         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 374                         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 375                 }
 376
 377                 if( ($textlen + strlen($orig_body)) > $maxlen) {
 378                         if($textlen < $maxlen) {
 379                                 logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
 380                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 381                                 $textlen = $maxlen;
 382                         }
 383                 }
 384                 else {
 385                         logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
 386                         $new_body = $new_body . $orig_body;
 387                         $textlen += strlen($orig_body);
 388                 }
 389
 390                 return $new_body;
 391         }
 392         else
 393                 return $body;
 394 }}
 395
 396 function title_is_body($title, $body) {
 397
 398         $title = strip_tags($title);
 399         $title = trim($title);
 400         $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
 401         $title = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $title);
 402
 403         $body = strip_tags($body);
 404         $body = trim($body);
 405         $body = html_entity_decode($body, ENT_QUOTES, 'UTF-8');
 406         $body = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $body);
 407
 408         if (strlen($title) < strlen($body))
 409                 $body = substr($body, 0, strlen($title));
 410
 411         if (($title != $body) and (substr($title, -3) == "...")) {
 412                 $pos = strrpos($title, "...");
 413                 if ($pos > 0) {
 414                         $title = substr($title, 0, $pos);
 415                         $body = substr($body, 0, $pos);
 416                 }
 417         }
 418
 419         return($title == $body);
 420 }
 421
 422
 423
 424 function get_atom_elements($feed, $item, $contact = array()) {
 425
 426         require_once('library/HTMLPurifier.auto.php');
 427         require_once('include/html2bbcode.php');
 428
 429         $best_photo = array();
 430
 431         $res = array();
 432
 433         $author = $item->get_author();
 434         if($author) {
 435                 $res['author-name'] = unxmlify($author->get_name());
 436                 $res['author-link'] = unxmlify($author->get_link());
 437         }
 438         else {
 439                 $res['author-name'] = unxmlify($feed->get_title());
 440                 $res['author-link'] = unxmlify($feed->get_permalink());
 441         }
 442         $res['uri'] = unxmlify($item->get_id());
 443         $res['title'] = unxmlify($item->get_title());
 444         $res['body'] = unxmlify($item->get_content());
 445         $res['plink'] = unxmlify($item->get_link(0));
 446
 447         if (isset($contact["network"]) AND ($contact["network"] == NETWORK_FEED) AND strstr($res['plink'], ".app.net/")) {
 448                 logger("get_atom_elements: detected app.net posting: ".print_r($res, true), LOGGER_DEBUG);
 449                 $res['title'] = "";
 450                 $res['body'] = nl2br($res['body']);
 451         }
 452
 453         // removing the content of the title if its identically to the body
 454         // This helps with auto generated titles e.g. from tumblr
 455         if (title_is_body($res["title"], $res["body"]))
 456                 $res['title'] = "";
 457
 458         if($res['plink'])
 459                 $base_url = implode('/', array_slice(explode('/',$res['plink']),0,3));
 460         else
 461                 $base_url = '';
 462
 463         // look for a photo. We should check media size and find the best one,
 464         // but for now let's just find any author photo
 465
 466         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 467
 468         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 469                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 470                 foreach($base as $link) {
 471                         if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 472                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 473                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 474                         }
 475                 }
 476         }
 477
 478         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 479
 480         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 481                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 482                 if($base && count($base)) {
 483                         foreach($base as $link) {
 484                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 485                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 486                                 if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 487                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 488                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 489                                 }
 490                         }
 491                 }
 492         }
 493
 494         // No photo/profile-link on the item - look at the feed level
 495
 496         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 497                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 498                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 499                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 500                         foreach($base as $link) {
 501                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 502                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 503                                 if(! $res['author-avatar']) {
 504                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 505                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 506                                 }
 507                         }
 508                 }
 509
 510                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 511
 512                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 513                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 514
 515                         if($base && count($base)) {
 516                                 foreach($base as $link) {
 517                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 518                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 519                                         if(! (x($res,'author-avatar'))) {
 520                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 521                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 522                                         }
 523                                 }
 524                         }
 525                 }
 526         }
 527
 528         $apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info');
 529         if($apps && $apps[0]['attribs']['']['source']) {
 530                 $res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source']));
 531                 if($res['app'] === 'web')
 532                         $res['app'] = 'OStatus';
 533         }
 534
 535         // base64 encoded json structure representing Diaspora signature
 536
 537         $dsig = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_signature');
 538         if($dsig) {
 539                 $res['dsprsig'] = unxmlify($dsig[0]['data']);
 540         }
 541
 542         $dguid = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_guid');
 543         if($dguid)
 544                 $res['guid'] = unxmlify($dguid[0]['data']);
 545
 546         $bm = $item->get_item_tags(NAMESPACE_DFRN,'bookmark');
 547         if($bm)
 548                 $res['bookmark'] = ((unxmlify($bm[0]['data']) === 'true') ? 1 : 0);
 549
 550
 551         /**
 552          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 553          */
 554
 555         $have_real_body = false;
 556
 557         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 558         if($rawenv) {
 559                 $have_real_body = true;
 560                 $res['body'] = $rawenv[0]['data'];
 561                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 562                 // make sure nobody is trying to sneak some html tags by us
 563                 $res['body'] = notags(base64url_decode($res['body']));
 564         }
 565
 566
 567         $res['body'] = limit_body_size($res['body']);
 568
 569         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 570         // the content type. Our own network only emits text normally, though it might have been converted to
 571         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 572         // have to assume it is all html and needs to be purified.
 573
 574         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 575         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 576         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 577         // html.
 578
 579         if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) {
 580
 581                 $res['body'] = reltoabs($res['body'],$base_url);
 582
 583                 $res['body'] = html2bb_video($res['body']);
 584
 585                 $res['body'] = oembed_html2bbcode($res['body']);
 586
 587                 $config = HTMLPurifier_Config::createDefault();
 588                 $config->set('Cache.DefinitionImpl', null);
 589
 590                 // we shouldn't need a whitelist, because the bbcode converter
 591                 // will strip out any unsupported tags.
 592
 593                 $purifier = new HTMLPurifier($config);
 594                 $res['body'] = $purifier->purify($res['body']);
 595
 596                 $res['body'] = @html2bbcode($res['body']);
 597
 598
 599         }
 600         elseif(! $have_real_body) {
 601
 602                 // it's not one of our messages and it has no tags
 603                 // so it's probably just text. We'll escape it just to be safe.
 604
 605                 $res['body'] = escape_tags($res['body']);
 606         }
 607
 608
 609         // this tag is obsolete but we keep it for really old sites
 610
 611         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 612         if($allow && $allow[0]['data'] == 1)
 613                 $res['last-child'] = 1;
 614         else
 615                 $res['last-child'] = 0;
 616
 617         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 618         if($private && intval($private[0]['data']) > 0)
 619                 $res['private'] = intval($private[0]['data']);
 620         else
 621                 $res['private'] = 0;
 622
 623         $extid = $item->get_item_tags(NAMESPACE_DFRN,'extid');
 624         if($extid && $extid[0]['data'])
 625                 $res['extid'] = $extid[0]['data'];
 626
 627         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 628         if($rawlocation)
 629                 $res['location'] = unxmlify($rawlocation[0]['data']);
 630
 631
 632         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 633         if($rawcreated)
 634                 $res['created'] = unxmlify($rawcreated[0]['data']);
 635
 636
 637         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 638         if($rawedited)
 639                 $res['edited'] = unxmlify($rawedited[0]['data']);
 640
 641         if((x($res,'edited')) && (! (x($res,'created'))))
 642                 $res['created'] = $res['edited'];
 643
 644         if(! $res['created'])
 645                 $res['created'] = $item->get_date('c');
 646
 647         if(! $res['edited'])
 648                 $res['edited'] = $item->get_date('c');
 649
 650
 651         // Disallow time travelling posts
 652
 653         $d1 = strtotime($res['created']);
 654         $d2 = strtotime($res['edited']);
 655         $d3 = strtotime('now');
 656
 657         if($d1 > $d3)
 658                 $res['created'] = datetime_convert();
 659         if($d2 > $d3)
 660                 $res['edited'] = datetime_convert();
 661
 662         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 663         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 664                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 665         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 666                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 667         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 668                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 669         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 670                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 671
 672         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 673                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 674
 675                 foreach($base as $link) {
 676                         if(!x($res, 'owner-avatar') || !$res['owner-avatar']) {
 677                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 678                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 679                         }
 680                 }
 681         }
 682
 683         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 684         if($rawgeo)
 685                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 686
 687         if ($contact["network"] == NETWORK_FEED) {
 688                 $res['verb'] = ACTIVITY_POST;
 689                 $res['object-type'] = ACTIVITY_OBJ_NOTE;
 690         }
 691
 692         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 693
 694         // select between supported verbs
 695
 696         if($rawverb) {
 697                 $res['verb'] = unxmlify($rawverb[0]['data']);
 698         }
 699
 700         // translate OStatus unfollow to activity streams if it happened to get selected
 701
 702         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 703                 $res['verb'] = ACTIVITY_UNFOLLOW;
 704
 705         $cats = $item->get_categories();
 706         if($cats) {
 707                 $tag_arr = array();
 708                 foreach($cats as $cat) {
 709                         $term = $cat->get_term();
 710                         if(! $term)
 711                                 $term = $cat->get_label();
 712                         $scheme = $cat->get_scheme();
 713                         if($scheme && $term && stristr($scheme,'X-DFRN:'))
 714                                 $tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
 715                         elseif($term)
 716                                 $tag_arr[] = notags(trim($term));
 717                 }
 718                 $res['tag'] =  implode(',', $tag_arr);
 719         }
 720
 721         $attach = $item->get_enclosures();
 722         if($attach) {
 723                 $att_arr = array();
 724                 foreach($attach as $att) {
 725                         $len   = intval($att->get_length());
 726                         $link  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
 727                         $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
 728                         $type  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
 729                         if(strpos($type,';'))
 730                                 $type = substr($type,0,strpos($type,';'));
 731                         if((! $link) || (strpos($link,'http') !== 0))
 732                                 continue;
 733
 734                         if(! $title)
 735                                 $title = ' ';
 736                         if(! $type)
 737                                 $type = 'application/octet-stream';
 738
 739                         $att_arr[] = '[attach]href="' . $link . '" length="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
 740                 }
 741                 $res['attach'] = implode(',', $att_arr);
 742         }
 743
 744         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 745
 746         if($rawobj) {
 747                 $res['object'] = '<object>' . "\n";
 748                 $child = $rawobj[0]['child'];
 749                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 750                         $res['object-type'] = $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 751                         $res['object'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 752                 }
 753                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 754                         $res['object'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 755                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 756                         $res['object'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 757                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 758                         $res['object'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 759                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 760                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 761                         if(! $body)
 762                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 763                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 764                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 765                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 766
 767                                 $body = html2bb_video($body);
 768
 769                                 $config = HTMLPurifier_Config::createDefault();
 770                                 $config->set('Cache.DefinitionImpl', null);
 771
 772                                 $purifier = new HTMLPurifier($config);
 773                                 $body = $purifier->purify($body);
 774                                 $body = html2bbcode($body);
 775                         }
 776
 777                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 778                 }
 779
 780                 $res['object'] .= '</object>' . "\n";
 781         }
 782
 783         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 784
 785         if($rawobj) {
 786                 $res['target'] = '<target>' . "\n";
 787                 $child = $rawobj[0]['child'];
 788                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 789                         $res['target'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 790                 }
 791                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 792                         $res['target'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 793                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 794                         $res['target'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 795                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 796                         $res['target'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 797                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 798                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 799                         if(! $body)
 800                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 801                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 802                         $res['target'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 803                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 804
 805                                 $body = html2bb_video($body);
 806
 807                                 $config = HTMLPurifier_Config::createDefault();
 808                                 $config->set('Cache.DefinitionImpl', null);
 809
 810                                 $purifier = new HTMLPurifier($config);
 811                                 $body = $purifier->purify($body);
 812                                 $body = html2bbcode($body);
 813                         }
 814
 815                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 816                 }
 817
 818                 $res['target'] .= '</target>' . "\n";
 819         }
 820
 821         // This is some experimental stuff. By now retweets are shown with "RT:"
 822         // But: There is data so that the message could be shown similar to native retweets
 823         // There is some better way to parse this array - but it didn't worked for me.
 824         $child = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://activitystrea.ms/spec/1.0/"][object][0]["child"];
 825         if (is_array($child)) {
 826                 logger('get_atom_elements: Looking for status.net repeated message');
 827
 828                 $message = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["content"][0]["data"];
 829                 $orig_uri = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["id"][0]["data"];
 830                 $author = $child[SIMPLEPIE_NAMESPACE_ATOM_10]["author"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10];
 831                 $uri = $author["uri"][0]["data"];
 832                 $name = $author["name"][0]["data"];
 833                 $avatar = @array_shift($author["link"][2]["attribs"]);
 834                 $avatar = $avatar["href"];
 835
 836                 if (($name != "") and ($uri != "") and ($avatar != "") and ($message != "")) {
 837                         logger('get_atom_elements: fixing sender of repeated message.');
 838
 839                         if (!intval(get_config('system','wall-to-wall_share'))) {
 840                                 $prefix = "[share author='".str_replace("'", "&#039;",$name).
 841                                                 "' profile='".$uri.
 842                                                 "' avatar='".$avatar.
 843                                                 "' link='".$orig_uri."']";
 844
 845                                 $res["body"] = $prefix.html2bbcode($message)."[/share]";
 846                         } else {
 847                                 $res["owner-name"] = $res["author-name"];
 848                                 $res["owner-link"] = $res["author-link"];
 849                                 $res["owner-avatar"] = $res["author-avatar"];
 850
 851                                 $res["author-name"] = $name;
 852                                 $res["author-link"] = $uri;
 853                                 $res["author-avatar"] = $avatar;
 854
 855                                 $res["body"] = html2bbcode($message);
 856                         }
 857                 }
 858         }
 859
 860         // Search for ostatus conversation url
 861         $links = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://www.w3.org/2005/Atom"]["link"];
 862
 863         if (is_array($links)) {
 864                 foreach ($links as $link) {
 865                         $conversation = array_shift($link["attribs"]);
 866
 867                         if ($conversation["rel"] == "ostatus:conversation") {
 868                                 $res["ostatus_conversation"] = $conversation["href"];
 869                                 logger('get_atom_elements: found conversation url '.$res["ostatus_conversation"]);
 870                         }
 871                 };
 872         }
 873
 874         if (isset($contact["network"]) AND ($contact["network"] == NETWORK_FEED) AND $contact['fetch_further_information']) {
 875                 $res["body"] = $res["title"].add_page_info($res['plink'], false, "", ($contact['fetch_further_information'] == 2));
 876                 $res["title"] = "";
 877                 $res["object-type"] = ACTIVITY_OBJ_BOOKMARK;
 878         } elseif (isset($contact["network"]) AND ($contact["network"] == NETWORK_OSTATUS))
 879                 $res["body"] = add_page_info_to_body($res["body"]);
 880         elseif (isset($contact["network"]) AND ($contact["network"] == NETWORK_FEED) AND strstr($res['plink'], ".app.net/")) {
 881                 $res["body"] = add_page_info_to_body($res["body"]);
 882         }
 883
 884         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 885
 886         call_hooks('parse_atom', $arr);
 887
 888         return $res;
 889 }
 890
 891 function add_page_info_data($data) {
 892         call_hooks('page_info_data', $data);
 893
 894         // It maybe is a rich content, but if it does have everything that a link has,
 895         // then treat it that way
 896         if (($data["type"] == "rich") AND is_string($data["title"]) AND
 897                 is_string($data["text"]) AND (sizeof($data["images"]) > 0))
 898                 $data["type"] = "link";
 899
 900         if ((($data["type"] != "link") AND ($data["type"] != "video") AND ($data["type"] != "photo")) OR ($data["title"] == $url))
 901                 return("");
 902
 903         if ($no_photos AND ($data["type"] == "photo"))
 904                 return("");
 905
 906         if (($data["type"] != "photo") AND is_string($data["title"]))
 907                 $text .= "[bookmark=".$data["url"]."]".trim($data["title"])."[/bookmark]";
 908
 909         if (($data["type"] != "video") AND ($photo != ""))
 910                 $text .= '[img]'.$photo.'[/img]';
 911         elseif (($data["type"] != "video") AND (sizeof($data["images"]) > 0)) {
 912                 $imagedata = $data["images"][0];
 913                 $text .= '[img]'.$imagedata["src"].'[/img]';
 914         }
 915
 916         if (($data["type"] != "photo") AND is_string($data["text"]))
 917                 $text .= "[quote]".$data["text"]."[/quote]";
 918
 919         $hashtags = "";
 920         if (isset($data["keywords"]) AND count($data["keywords"])) {
 921                 $a = get_app();
 922                 $hashtags = "\n";
 923                 foreach ($data["keywords"] AS $keyword) {
 924                         $hashtag = str_replace(" ", "", $keyword);
 925                         $hashtags .= "#[url=".$a->get_baseurl()."/search?tag=".rawurlencode($hashtag)."]".$hashtag."[/url] ";
 926                 }
 927         }
 928
 929         return("\n[class=type-".$data["type"]."]".$text."[/class]".$hashtags);
 930 }
 931
 932 function add_page_info($url, $no_photos = false, $photo = "", $keywords = false) {
 933         require_once("mod/parse_url.php");
 934
 935         $data = parseurl_getsiteinfo($url, true);
 936
 937         logger('add_page_info: fetch page info for '.$url.' '.print_r($data, true), LOGGER_DEBUG);
 938
 939         if (!$keywords AND isset($data["keywords"]))
 940                 unset($data["keywords"]);
 941
 942         $text = add_page_info_data($data);
 943
 944         return($text);
 945 }
 946
 947 function add_page_info_to_body($body, $texturl = false, $no_photos = false) {
 948
 949         logger('add_page_info_to_body: fetch page info for body '.$body, LOGGER_DEBUG);
 950
 951         $URLSearchString = "^\[\]";
 952
 953         // Adding these spaces is a quick hack due to my problems with regular expressions :)
 954         preg_match("/[^!#@]\[url\]([$URLSearchString]*)\[\/url\]/ism", " ".$body, $matches);
 955
 956         if (!$matches)
 957                 preg_match("/[^!#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", " ".$body, $matches);
 958
 959         // Convert urls without bbcode elements
 960         if (!$matches AND $texturl) {
 961                 preg_match("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", " ".$body, $matches);
 962
 963                 // Yeah, a hack. I really hate regular expressions :)
 964                 if ($matches)
 965                         $matches[1] = $matches[2];
 966         }
 967
 968         if ($matches)
 969                 $footer = add_page_info($matches[1], $no_photos);
 970
 971         // Remove the link from the body if the link is attached at the end of the post
 972         if (isset($footer) AND (trim($footer) != "") AND (strpos($footer, $matches[1]))) {
 973                 $removedlink = trim(str_replace($matches[1], "", $body));
 974                 if (($removedlink == "") OR strstr($body, $removedlink))
 975                         $body = $removedlink;
 976
 977                 $url = str_replace(array('/', '.'), array('\/', '\.'), $matches[1]);
 978                 $removedlink = preg_replace("/\[url\=".$url."\](.*?)\[\/url\]/ism", '', $body);
 979                 if (($removedlink == "") OR strstr($body, $removedlink))
 980                         $body = $removedlink;
 981         }
 982
 983         // Add the page information to the bottom
 984         if (isset($footer) AND (trim($footer) != ""))
 985                 $body .= $footer;
 986
 987         return $body;
 988 }
 989
 990 function encode_rel_links($links) {
 991         $o = '';
 992         if(! ((is_array($links)) && (count($links))))
 993                 return $o;
 994         foreach($links as $link) {
 995                 $o .= '<link ';
 996                 if($link['attribs']['']['rel'])
 997                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
 998                 if($link['attribs']['']['type'])
 999                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
1000                 if($link['attribs']['']['href'])
1001                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
1002                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
1003                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
1004                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
1005                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
1006                 $o .= ' />' . "\n" ;
1007         }
1008         return xmlify($o);
1009 }
1010
1011
1012
1013 function item_store($arr,$force_parent = false, $notify = false) {
1014
1015         // If it is a posting where users should get notifications, then define it as wall posting
1016         if ($notify) {
1017                 $arr['wall'] = 1;
1018                 $arr['type'] = 'wall';
1019                 $arr['origin'] = 1;
1020                 $arr['last-child'] = 1;
1021                 $arr['network'] = NETWORK_DFRN;
1022         }
1023
1024         // If a Diaspora signature structure was passed in, pull it out of the
1025         // item array and set it aside for later storage.
1026
1027         $dsprsig = null;
1028         if(x($arr,'dsprsig')) {
1029                 $dsprsig = json_decode(base64_decode($arr['dsprsig']));
1030                 unset($arr['dsprsig']);
1031         }
1032
1033         // if an OStatus conversation url was passed in, it is stored and then
1034         // removed from the array.
1035         $ostatus_conversation = null;
1036
1037         if (isset($arr["ostatus_conversation"])) {
1038                 $ostatus_conversation = $arr["ostatus_conversation"];
1039                 unset($arr["ostatus_conversation"]);
1040         }
1041
1042         if(x($arr, 'gravity'))
1043                 $arr['gravity'] = intval($arr['gravity']);
1044         elseif($arr['parent-uri'] === $arr['uri'])
1045                 $arr['gravity'] = 0;
1046         elseif(activity_match($arr['verb'],ACTIVITY_POST))
1047                 $arr['gravity'] = 6;
1048         else
1049                 $arr['gravity'] = 6;   // extensible catchall
1050
1051         if(! x($arr,'type'))
1052                 $arr['type']      = 'remote';
1053
1054
1055
1056         /* check for create  date and expire time */
1057         $uid = intval($arr['uid']);
1058         $r = q("SELECT expire FROM user WHERE uid = %d", $uid);
1059         if(count($r)) {
1060                 $expire_interval = $r[0]['expire'];
1061                 if ($expire_interval>0) {
1062                         $expire_date =  new DateTime( '- '.$expire_interval.' days', new DateTimeZone('UTC'));
1063                         $created_date = new DateTime($arr['created'], new DateTimeZone('UTC'));
1064                         if ($created_date < $expire_date) {
1065                                 logger('item-store: item created ('.$arr['created'].') before expiration time ('.$expire_date->format(DateTime::W3C).'). ignored. ' . print_r($arr,true), LOGGER_DEBUG);
1066                                 return 0;
1067                         }
1068                 }
1069         }
1070
1071         // If there is no guid then take the same guid that was taken before for the same uri
1072         if ((trim($arr['guid']) == "") AND (trim($arr['uri']) != "")) {
1073                 logger('item_store: checking for an existing guid for uri '.$arr['uri'], LOGGER_DEBUG);
1074                 $r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `guid` != '' LIMIT 1",
1075                         dbesc(trim($arr['uri']))
1076                 );
1077
1078                 if(count($r)) {
1079                         $arr['guid'] = $r[0]["guid"];
1080                         logger('item_store: found guid '.$arr['guid'].' for uri '.$arr['uri'], LOGGER_DEBUG);
1081                 }
1082         }
1083
1084         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
1085         // Deactivated, since the bbcode parser can handle with it - and it destroys posts with some smileys that contain "<"
1086         //if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
1087         //      $arr['body'] = strip_tags($arr['body']);
1088
1089
1090         if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
1091                 require_once('library/langdet/Text/LanguageDetect.php');
1092                 $naked_body = preg_replace('/\[(.+?)\]/','',$arr['body']);
1093                 $l = new Text_LanguageDetect;
1094                 //$lng = $l->detectConfidence($naked_body);
1095                 //$arr['postopts'] = (($lng['language']) ? 'lang=' . $lng['language'] . ';' . $lng['confidence'] : '');
1096                 $lng = $l->detect($naked_body, 3);
1097
1098                 if (sizeof($lng) > 0) {
1099                         $postopts = "";
1100
1101                         foreach ($lng as $language => $score) {
1102                                 if ($postopts == "")
1103                                         $postopts = "lang=";
1104                                 else
1105                                         $postopts .= ":";
1106
1107                                 $postopts .= $language.";".$score;
1108                         }
1109                         $arr['postopts'] = $postopts;
1110                 }
1111         }
1112
1113         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
1114         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
1115         $arr['extid']         = ((x($arr,'extid'))         ? notags(trim($arr['extid']))         : '');
1116         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
1117         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
1118         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
1119         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
1120         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
1121         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
1122         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
1123         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
1124         $arr['commented']     = datetime_convert();
1125         $arr['received']      = datetime_convert();
1126         $arr['changed']       = datetime_convert();
1127         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
1128         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
1129         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
1130         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
1131         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
1132         $arr['deleted']       = 0;
1133         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
1134         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
1135         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
1136         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
1137         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
1138         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
1139         $arr['plink']         = ((x($arr,'plink'))         ? notags(trim($arr['plink']))         : '');
1140         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
1141         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
1142         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
1143         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
1144         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
1145         $arr['bookmark']      = ((x($arr,'bookmark'))      ? intval($arr['bookmark'])            : 0 );
1146         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
1147         $arr['tag']           = ((x($arr,'tag'))           ? notags(trim($arr['tag']))           : '');
1148         $arr['attach']        = ((x($arr,'attach'))        ? notags(trim($arr['attach']))        : '');
1149         $arr['app']           = ((x($arr,'app'))           ? notags(trim($arr['app']))           : '');
1150         $arr['origin']        = ((x($arr,'origin'))        ? intval($arr['origin'])              : 0 );
1151         $arr['guid']          = ((x($arr,'guid'))          ? notags(trim($arr['guid']))          : get_guid(30));
1152         $arr['network']       = ((x($arr,'network'))       ? trim($arr['network'])               : '');
1153
1154         if ($arr['plink'] == "") {
1155                 $a = get_app();
1156                 $arr['plink'] = $a->get_baseurl().'/display/'.urlencode($arr['guid']);
1157         }
1158
1159         if ($arr['network'] == "") {
1160                 $r = q("SELECT `network` FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1161                         intval($arr['contact-id']),
1162                         intval($arr['uid'])
1163                 );
1164
1165                 if(count($r))
1166                         $arr['network'] = $r[0]["network"];
1167
1168                 // Fallback to friendica (why is it empty in some cases?)
1169                 if ($arr['network'] == "")
1170                         $arr['network'] = NETWORK_DFRN;
1171
1172                 logger("item_store: Set network to ".$arr["network"]." for ".$arr["uri"], LOGGER_DEBUG);
1173         }
1174
1175         $arr['thr-parent'] = $arr['parent-uri'];
1176         if($arr['parent-uri'] === $arr['uri']) {
1177                 $parent_id = 0;
1178                 $parent_deleted = 0;
1179                 $allow_cid = $arr['allow_cid'];
1180                 $allow_gid = $arr['allow_gid'];
1181                 $deny_cid  = $arr['deny_cid'];
1182                 $deny_gid  = $arr['deny_gid'];
1183                 $notify_type = 'wall-new';
1184         }
1185         else {
1186
1187                 // find the parent and snarf the item id and ACLs
1188                 // and anything else we need to inherit
1189
1190                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
1191                         dbesc($arr['parent-uri']),
1192                         intval($arr['uid'])
1193                 );
1194
1195                 if(count($r)) {
1196
1197                         // is the new message multi-level threaded?
1198                         // even though we don't support it now, preserve the info
1199                         // and re-attach to the conversation parent.
1200
1201                         if($r[0]['uri'] != $r[0]['parent-uri']) {
1202                                 $arr['parent-uri'] = $r[0]['parent-uri'];
1203                                 $z = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `parent-uri` = '%s' AND `uid` = %d
1204                                         ORDER BY `id` ASC LIMIT 1",
1205                                         dbesc($r[0]['parent-uri']),
1206                                         dbesc($r[0]['parent-uri']),
1207                                         intval($arr['uid'])
1208                                 );
1209                                 if($z && count($z))
1210                                         $r = $z;
1211                         }
1212
1213                         $parent_id      = $r[0]['id'];
1214                         $parent_deleted = $r[0]['deleted'];
1215                         $allow_cid      = $r[0]['allow_cid'];
1216                         $allow_gid      = $r[0]['allow_gid'];
1217                         $deny_cid       = $r[0]['deny_cid'];
1218                         $deny_gid       = $r[0]['deny_gid'];
1219                         $arr['wall']    = $r[0]['wall'];
1220                         $notify_type    = 'comment-new';
1221
1222                         // if the parent is private, force privacy for the entire conversation
1223                         // This differs from the above settings as it subtly allows comments from
1224                         // email correspondents to be private even if the overall thread is not.
1225
1226                         if($r[0]['private'])
1227                                 $arr['private'] = $r[0]['private'];
1228
1229                         // Edge case. We host a public forum that was originally posted to privately.
1230                         // The original author commented, but as this is a comment, the permissions
1231                         // weren't fixed up so it will still show the comment as private unless we fix it here.
1232
1233                         if((intval($r[0]['forum_mode']) == 1) && (! $r[0]['private']))
1234                                 $arr['private'] = 0;
1235
1236
1237                         // If its a post from myself then tag the thread as "mention"
1238                         logger("item_store: Checking if parent ".$parent_id." has to be tagged as mention for user ".$arr['uid'], LOGGER_DEBUG);
1239                         $u = q("select * from user where uid = %d limit 1", intval($arr['uid']));
1240                         if(count($u)) {
1241                                 $a = get_app();
1242                                 $self = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1243                                 logger("item_store: 'myself' is ".$self." for parent ".$parent_id." checking against ".$arr['author-link']." and ".$arr['owner-link'], LOGGER_DEBUG);
1244                                 if ((normalise_link($arr['author-link']) == $self) OR (normalise_link($arr['owner-link']) == $self)) {
1245                                         q("UPDATE `thread` SET `mention` = 1 WHERE `iid` = %d", intval($parent_id));
1246                                         logger("item_store: tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
1247                                 }
1248                         }
1249                 }
1250                 else {
1251
1252                         // Allow one to see reply tweets from status.net even when
1253                         // we don't have or can't see the original post.
1254
1255                         if($force_parent) {
1256                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
1257                                 $parent_id = 0;
1258                                 $arr['parent-uri'] = $arr['uri'];
1259                                 $arr['gravity'] = 0;
1260                         }
1261                         else {
1262                                 logger('item_store: item parent was not found - ignoring item');
1263                                 return 0;
1264                         }
1265
1266                         $parent_deleted = 0;
1267                 }
1268         }
1269
1270         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1271                 dbesc($arr['uri']),
1272                 intval($arr['uid'])
1273         );
1274         if($r && count($r)) {
1275                 logger('item-store: duplicate item ignored. ' . print_r($arr,true));
1276                 return 0;
1277         }
1278
1279         call_hooks('post_remote',$arr);
1280
1281         if(x($arr,'cancel')) {
1282                 logger('item_store: post cancelled by plugin.');
1283                 return 0;
1284         }
1285
1286         dbesc_array($arr);
1287
1288         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
1289
1290         $r = dbq("INSERT INTO `item` (`"
1291                         . implode("`, `", array_keys($arr))
1292                         . "`) VALUES ('"
1293                         . implode("', '", array_values($arr))
1294                         . "')" );
1295
1296         // find the item we just created
1297
1298         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC ",
1299                 $arr['uri'],           // already dbesc'd
1300                 intval($arr['uid'])
1301         );
1302
1303         if(count($r)) {
1304                 $current_post = $r[0]['id'];
1305                 logger('item_store: created item ' . $current_post);
1306
1307                 // Only check for notifications on start posts
1308                 if ($arr['parent-uri'] === $arr['uri']) {
1309                         add_thread($r[0]['id']);
1310                         logger('item_store: Check notification for contact '.$arr['contact-id'].' and post '.$current_post, LOGGER_DEBUG);
1311
1312                         // Send a notification for every new post?
1313                         $r = q("SELECT `notify_new_posts` FROM `contact` WHERE `id` = %d AND `uid` = %d AND `notify_new_posts` LIMIT 1",
1314                                 intval($arr['contact-id']),
1315                                 intval($arr['uid'])
1316                         );
1317
1318                         if(count($r)) {
1319                                 logger('item_store: Send notification for contact '.$arr['contact-id'].' and post '.$current_post, LOGGER_DEBUG);
1320                                 $u = q("SELECT * FROM user WHERE uid = %d LIMIT 1",
1321                                         intval($arr['uid']));
1322
1323                                 $item = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d",
1324                                         intval($current_post),
1325                                         intval($arr['uid'])
1326                                 );
1327
1328                                 $a = get_app();
1329
1330                                 require_once('include/enotify.php');
1331                                 notification(array(
1332                                         'type'         => NOTIFY_SHARE,
1333                                         'notify_flags' => $u[0]['notify-flags'],
1334                                         'language'     => $u[0]['language'],
1335                                         'to_name'      => $u[0]['username'],
1336                                         'to_email'     => $u[0]['email'],
1337                                         'uid'          => $u[0]['uid'],
1338                                         'item'         => $item[0],
1339                                         'link'         => $a->get_baseurl().'/display/'.urlencode($arr['guid']),
1340                                         'source_name'  => $item[0]['author-name'],
1341                                         'source_link'  => $item[0]['author-link'],
1342                                         'source_photo' => $item[0]['author-avatar'],
1343                                         'verb'         => ACTIVITY_TAG,
1344                                         'otype'        => 'item'
1345                                 ));
1346                                 logger('item_store: Notification sent for contact '.$arr['contact-id'].' and post '.$current_post, LOGGER_DEBUG);
1347                         }
1348                 }
1349
1350         } else {
1351                 logger('item_store: could not locate created item');
1352                 return 0;
1353         }
1354         if(count($r) > 1) {
1355                 logger('item_store: duplicated post occurred. Removing duplicates.');
1356                 q("DELETE FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `id` != %d ",
1357                         $arr['uri'],
1358                         intval($arr['uid']),
1359                         intval($current_post)
1360                 );
1361         }
1362
1363         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
1364                 $parent_id = $current_post;
1365
1366         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
1367                 $private = 1;
1368         else
1369                 $private = $arr['private'];
1370
1371         // Set parent id - and also make sure to inherit the parent's ACLs.
1372
1373         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
1374                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d",
1375                 intval($parent_id),
1376                 dbesc($allow_cid),
1377                 dbesc($allow_gid),
1378                 dbesc($deny_cid),
1379                 dbesc($deny_gid),
1380                 intval($private),
1381                 intval($parent_deleted),
1382                 intval($current_post)
1383         );
1384
1385         // Complete ostatus threads
1386         if ($ostatus_conversation)
1387                 complete_conversation($current_post, $ostatus_conversation);
1388
1389         $arr['id'] = $current_post;
1390         $arr['parent'] = $parent_id;
1391         $arr['allow_cid'] = $allow_cid;
1392         $arr['allow_gid'] = $allow_gid;
1393         $arr['deny_cid'] = $deny_cid;
1394         $arr['deny_gid'] = $deny_gid;
1395         $arr['private'] = $private;
1396         $arr['deleted'] = $parent_deleted;
1397
1398         // update the commented timestamp on the parent
1399
1400         q("UPDATE `item` set `commented` = '%s', `changed` = '%s' WHERE `id` = %d",
1401                 dbesc(datetime_convert()),
1402                 dbesc(datetime_convert()),
1403                 intval($parent_id)
1404         );
1405         update_thread($parent_id);
1406
1407         if($dsprsig) {
1408                 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1409                         intval($current_post),
1410                         dbesc($dsprsig->signed_text),
1411                         dbesc($dsprsig->signature),
1412                         dbesc($dsprsig->signer)
1413                 );
1414         }
1415
1416
1417         /**
1418          * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
1419          */
1420
1421         if($arr['last-child']) {
1422                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
1423                         dbesc($arr['uri']),
1424                         intval($arr['uid']),
1425                         intval($current_post)
1426                 );
1427         }
1428
1429         $deleted = tag_deliver($arr['uid'],$current_post);
1430
1431         // current post can be deleted if is for a communuty page and no mention are
1432         // in it.
1433         if (!$deleted) {
1434
1435                 // Store the fresh generated item into the cache
1436                 $cachefile = get_cachefile(urlencode($arr["guid"])."-".hash("md5", $arr['body']));
1437
1438                 if (($cachefile != '') AND !file_exists($cachefile)) {
1439                         $s = prepare_text($arr['body']);
1440                         $a = get_app();
1441                         $stamp1 = microtime(true);
1442                         file_put_contents($cachefile, $s);
1443                         $a->save_timestamp($stamp1, "file");
1444                         logger('item_store: put item '.$current_post.' into cachefile '.$cachefile);
1445                 }
1446
1447                 $r = q('SELECT * FROM `item` WHERE id = %d', intval($current_post));
1448                 if (count($r) == 1) {
1449                         call_hooks('post_remote_end', $r[0]);
1450                 } else {
1451                         logger('item_store: new item not found in DB, id ' . $current_post);
1452                 }
1453         }
1454
1455         create_tags_from_item($current_post);
1456         create_files_from_item($current_post);
1457
1458         if ($notify)
1459                 proc_run('php', "include/notifier.php", $notify_type, $current_post);
1460
1461         return $current_post;
1462 }
1463
1464 function get_item_guid($id) {
1465         $r = q("SELECT `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($id));
1466         if (count($r))
1467                 return($r[0]["guid"]);
1468         else
1469                 return("");
1470 }
1471
1472 function get_item_id($guid, $uid = 0) {
1473
1474         $nick = "";
1475         $id = 0;
1476
1477         if ($uid == 0)
1478                 $uid == local_user();
1479
1480         // Does the given user have this item?
1481         if ($uid) {
1482                 $r = q("SELECT `item`.`id`, `user`.`nickname` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1483                         WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 and `item`.`moderated` = 0
1484                                 AND `item`.`guid` = '%s' AND `item`.`uid` = %d", dbesc($guid), intval($uid));
1485                 if (count($r)) {
1486                         $id = $r[0]["id"];
1487                         $nick = $r[0]["nickname"];
1488                 }
1489         }
1490
1491         // Or is it anywhere on the server?
1492         if ($nick == "") {
1493                 $r = q("SELECT `item`.`id`, `user`.`nickname` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1494                         WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 and `item`.`moderated` = 0
1495                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
1496                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1497                                 AND `item`.`private` = 0 AND `item`.`wall` = 1
1498                                 AND `item`.`guid` = '%s'", dbesc($guid));
1499                 if (count($r)) {
1500                         $id = $r[0]["id"];
1501                         $nick = $r[0]["nickname"];
1502                 }
1503         }
1504         return(array("nick" => $nick, "id" => $id));
1505 }
1506
1507 // return - test
1508 function get_item_contact($item,$contacts) {
1509         if(! count($contacts) || (! is_array($item)))
1510                 return false;
1511         foreach($contacts as $contact) {
1512                 if($contact['id'] == $item['contact-id']) {
1513                         return $contact;
1514                         break; // NOTREACHED
1515                 }
1516         }
1517         return false;
1518 }
1519
1520 /**
1521  * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1522  * @param int $uid
1523  * @param int $item_id
1524  * @return bool true if item was deleted, else false
1525  */
1526 function tag_deliver($uid,$item_id) {
1527
1528         //
1529
1530         $a = get_app();
1531
1532         $mention = false;
1533
1534         $u = q("select * from user where uid = %d limit 1",
1535                 intval($uid)
1536         );
1537         if(! count($u))
1538                 return;
1539
1540         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1541         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1542
1543
1544         $i = q("select * from item where id = %d and uid = %d limit 1",
1545                 intval($item_id),
1546                 intval($uid)
1547         );
1548         if(! count($i))
1549                 return;
1550
1551         $item = $i[0];
1552
1553         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1554
1555         // Diaspora uses their own hardwired link URL in @-tags
1556         // instead of the one we supply with webfinger
1557
1558         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1559
1560         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1561         if($cnt) {
1562                 foreach($matches as $mtch) {
1563                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1564                                 $mention = true;
1565                                 logger('tag_deliver: mention found: ' . $mtch[2]);
1566                         }
1567                 }
1568         }
1569
1570         if(! $mention){
1571                 if ( ($community_page || $prvgroup) &&
1572                           (!$item['wall']) && (!$item['origin']) && ($item['id'] == $item['parent'])){
1573                         // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1574                         // delete it!
1575                         logger("tag_deliver: no-mention top-level post to communuty or private group. delete.");
1576                         q("DELETE FROM item WHERE id = %d and uid = %d",
1577                                 intval($item_id),
1578                                 intval($uid)
1579                         );
1580                         return true;
1581                 }
1582                 return;
1583         }
1584
1585
1586         // send a notification
1587
1588         // use a local photo if we have one
1589
1590         $r = q("select * from contact where uid = %d and nurl = '%s' limit 1",
1591                 intval($u[0]['uid']),
1592                 dbesc(normalise_link($item['author-link']))
1593         );
1594         $photo = (($r && count($r)) ? $r[0]['thumb'] : $item['author-avatar']);
1595
1596
1597         require_once('include/enotify.php');
1598         notification(array(
1599                 'type'         => NOTIFY_TAGSELF,
1600                 'notify_flags' => $u[0]['notify-flags'],
1601                 'language'     => $u[0]['language'],
1602                 'to_name'      => $u[0]['username'],
1603                 'to_email'     => $u[0]['email'],
1604                 'uid'          => $u[0]['uid'],
1605                 'item'         => $item,
1606                 'link'         => $a->get_baseurl() . '/display/'.urlencode(get_item_guid($item['id'])),
1607                 'source_name'  => $item['author-name'],
1608                 'source_link'  => $item['author-link'],
1609                 'source_photo' => $photo,
1610                 'verb'         => ACTIVITY_TAG,
1611                 'otype'        => 'item',
1612                 'parent'       => $item['parent']
1613         ));
1614
1615
1616         $arr = array('item' => $item, 'user' => $u[0], 'contact' => $r[0]);
1617
1618         call_hooks('tagged', $arr);
1619
1620         if((! $community_page) && (! $prvgroup))
1621                 return;
1622
1623
1624         // tgroup delivery - setup a second delivery chain
1625         // prevent delivery looping - only proceed
1626         // if the message originated elsewhere and is a top-level post
1627
1628         if(($item['wall']) || ($item['origin']) || ($item['id'] != $item['parent']))
1629                 return;
1630
1631         // now change this copy of the post to a forum head message and deliver to all the tgroup members
1632
1633
1634         $c = q("select name, url, thumb from contact where self = 1 and uid = %d limit 1",
1635                 intval($u[0]['uid'])
1636         );
1637         if(! count($c))
1638                 return;
1639
1640         // also reset all the privacy bits to the forum default permissions
1641
1642         $private = ($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0;
1643
1644         $forum_mode = (($prvgroup) ? 2 : 1);
1645
1646         q("update item set wall = 1, origin = 1, forum_mode = %d, `owner-name` = '%s', `owner-link` = '%s', `owner-avatar` = '%s',
1647                 `private` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'  where id = %d",
1648                 intval($forum_mode),
1649                 dbesc($c[0]['name']),
1650                 dbesc($c[0]['url']),
1651                 dbesc($c[0]['thumb']),
1652                 intval($private),
1653                 dbesc($u[0]['allow_cid']),
1654                 dbesc($u[0]['allow_gid']),
1655                 dbesc($u[0]['deny_cid']),
1656                 dbesc($u[0]['deny_gid']),
1657                 intval($item_id)
1658         );
1659         update_thread($item_id);
1660
1661         proc_run('php','include/notifier.php','tgroup',$item_id);
1662
1663 }
1664
1665
1666
1667 function tgroup_check($uid,$item) {
1668
1669         $a = get_app();
1670
1671         $mention = false;
1672
1673         // check that the message originated elsewhere and is a top-level post
1674
1675         if(($item['wall']) || ($item['origin']) || ($item['uri'] != $item['parent-uri']))
1676                 return false;
1677
1678
1679         $u = q("select * from user where uid = %d limit 1",
1680                 intval($uid)
1681         );
1682         if(! count($u))
1683                 return false;
1684
1685         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1686         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1687
1688
1689         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1690
1691         // Diaspora uses their own hardwired link URL in @-tags
1692         // instead of the one we supply with webfinger
1693
1694         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1695
1696         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1697         if($cnt) {
1698                 foreach($matches as $mtch) {
1699                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1700                                 $mention = true;
1701                                 logger('tgroup_check: mention found: ' . $mtch[2]);
1702                         }
1703                 }
1704         }
1705
1706         if(! $mention)
1707                 return false;
1708
1709         if((! $community_page) && (! $prvgroup))
1710                 return false;
1711
1712
1713
1714         return true;
1715
1716 }
1717
1718
1719
1720
1721
1722
1723 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
1724
1725         $a = get_app();
1726
1727         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
1728
1729         if($contact['duplex'] && $contact['dfrn-id'])
1730                 $idtosend = '0:' . $orig_id;
1731         if($contact['duplex'] && $contact['issued-id'])
1732                 $idtosend = '1:' . $orig_id;
1733
1734         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
1735
1736         $rino_enable = get_config('system','rino_encrypt');
1737
1738         if(! $rino_enable)
1739                 $rino = 0;
1740
1741         $ssl_val = intval(get_config('system','ssl_policy'));
1742         $ssl_policy = '';
1743
1744         switch($ssl_val){
1745                 case SSL_POLICY_FULL:
1746                         $ssl_policy = 'full';
1747                         break;
1748                 case SSL_POLICY_SELFSIGN:
1749                         $ssl_policy = 'self';
1750                         break;
1751                 case SSL_POLICY_NONE:
1752                 default:
1753                         $ssl_policy = 'none';
1754                         break;
1755         }
1756
1757         $url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
1758
1759         logger('dfrn_deliver: ' . $url);
1760
1761         $xml = fetch_url($url);
1762
1763         $curl_stat = $a->get_curl_code();
1764         if(! $curl_stat)
1765                 return(-1); // timed out
1766
1767         logger('dfrn_deliver: ' . $xml, LOGGER_DATA);
1768
1769         if(! $xml)
1770                 return 3;
1771
1772         if(strpos($xml,'<?xml') === false) {
1773                 logger('dfrn_deliver: no valid XML returned');
1774                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
1775                 return 3;
1776         }
1777
1778         $res = parse_xml_string($xml);
1779
1780         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
1781                 return (($res->status) ? $res->status : 3);
1782
1783         $postvars     = array();
1784         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
1785         $challenge    = hex2bin((string) $res->challenge);
1786         $perm         = (($res->perm) ? $res->perm : null);
1787         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
1788         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
1789         $page         = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
1790
1791         if($owner['page-flags'] == PAGE_PRVGROUP)
1792                 $page = 2;
1793
1794         $final_dfrn_id = '';
1795
1796         if($perm) {
1797                 if((($perm == 'rw') && (! intval($contact['writable'])))
1798                 || (($perm == 'r') && (intval($contact['writable'])))) {
1799                         q("update contact set writable = %d where id = %d",
1800                                 intval(($perm == 'rw') ? 1 : 0),
1801                                 intval($contact['id'])
1802                         );
1803                         $contact['writable'] = (string) 1 - intval($contact['writable']);
1804                 }
1805         }
1806
1807         if(($contact['duplex'] && strlen($contact['pubkey']))
1808                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1809                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1810                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
1811                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
1812         }
1813         else {
1814                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
1815                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
1816         }
1817
1818         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
1819
1820         if(strpos($final_dfrn_id,':') == 1)
1821                 $final_dfrn_id = substr($final_dfrn_id,2);
1822
1823         if($final_dfrn_id != $orig_id) {
1824                 logger('dfrn_deliver: wrong dfrn_id.');
1825                 // did not decode properly - cannot trust this site
1826                 return 3;
1827         }
1828
1829         $postvars['dfrn_id']      = $idtosend;
1830         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
1831         if($dissolve)
1832                 $postvars['dissolve'] = '1';
1833
1834
1835         if((($contact['rel']) && ($contact['rel'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1836                 $postvars['data'] = $atom;
1837                 $postvars['perm'] = 'rw';
1838         }
1839         else {
1840                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
1841                 $postvars['perm'] = 'r';
1842         }
1843
1844         $postvars['ssl_policy'] = $ssl_policy;
1845
1846         if($page)
1847                 $postvars['page'] = $page;
1848
1849         if($rino && $rino_allowed && (! $dissolve)) {
1850                 $key = substr(random_string(),0,16);
1851                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
1852                 $postvars['data'] = $data;
1853                 logger('rino: sent key = ' . $key, LOGGER_DEBUG);
1854
1855
1856                 if($dfrn_version >= 2.1) {
1857                         if(($contact['duplex'] && strlen($contact['pubkey']))
1858                                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1859                                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1860
1861                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1862                         }
1863                         else {
1864                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1865                         }
1866                 }
1867                 else {
1868                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1869                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1870                         }
1871                         else {
1872                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1873                         }
1874                 }
1875
1876                 logger('md5 rawkey ' . md5($postvars['key']));
1877
1878                 $postvars['key'] = bin2hex($postvars['key']);
1879         }
1880
1881         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
1882
1883         $xml = post_url($contact['notify'],$postvars);
1884
1885         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
1886
1887         $curl_stat = $a->get_curl_code();
1888         if((! $curl_stat) || (! strlen($xml)))
1889                 return(-1); // timed out
1890
1891         if(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
1892                 return(-1);
1893
1894         if(strpos($xml,'<?xml') === false) {
1895                 logger('dfrn_deliver: phase 2: no valid XML returned');
1896                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
1897                 return 3;
1898         }
1899
1900         if($contact['term-date'] != '0000-00-00 00:00:00') {
1901                 logger("dfrn_deliver: $url back from the dead - removing mark for death");
1902                 require_once('include/Contact.php');
1903                 unmark_for_death($contact);
1904         }
1905
1906         $res = parse_xml_string($xml);
1907
1908         return $res->status;
1909 }
1910
1911
1912 /*
1913   This function returns true if $update has an edited timestamp newer
1914   than $existing, i.e. $update contains new data which should override
1915   what's already there.  If there is no timestamp yet, the update is
1916   assumed to be newer.  If the update has no timestamp, the existing
1917   item is assumed to be up-to-date.  If the timestamps are equal it
1918   assumes the update has been seen before and should be ignored.
1919   */
1920 function edited_timestamp_is_newer($existing, $update) {
1921     if (!x($existing,'edited') || !$existing['edited']) {
1922         return true;
1923     }
1924     if (!x($update,'edited') || !$update['edited']) {
1925         return false;
1926     }
1927     $existing_edited = datetime_convert('UTC', 'UTC', $existing['edited']);
1928     $update_edited = datetime_convert('UTC', 'UTC', $update['edited']);
1929     return (strcmp($existing_edited, $update_edited) < 0);
1930 }
1931
1932 /**
1933  *
1934  * consume_feed - process atom feed and update anything/everything we might need to update
1935  *
1936  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
1937  *
1938  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
1939  *             It is this person's stuff that is going to be updated.
1940  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
1941  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
1942  *             have a contact record.
1943  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
1944  *        might not) try and subscribe to it.
1945  * $datedir sorts in reverse order
1946  * $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
1947  *      imported prior to its children being seen in the stream unless we are certain
1948  *      of how the feed is arranged/ordered.
1949  * With $pass = 1, we only pull parent items out of the stream.
1950  * With $pass = 2, we only pull children (comments/likes).
1951  *
1952  * So running this twice, first with pass 1 and then with pass 2 will do the right
1953  * thing regardless of feed ordering. This won't be adequate in a fully-threaded
1954  * model where comments can have sub-threads. That would require some massive sorting
1955  * to get all the feed items into a mostly linear ordering, and might still require
1956  * recursion.
1957  */
1958
1959 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $pass = 0) {
1960
1961         require_once('library/simplepie/simplepie.inc');
1962         require_once('include/contact_selectors.php');
1963
1964         if(! strlen($xml)) {
1965                 logger('consume_feed: empty input');
1966                 return;
1967         }
1968
1969         $feed = new SimplePie();
1970         $feed->set_raw_data($xml);
1971         if($datedir)
1972                 $feed->enable_order_by_date(true);
1973         else
1974                 $feed->enable_order_by_date(false);
1975         $feed->init();
1976
1977         if($feed->error())
1978                 logger('consume_feed: Error parsing XML: ' . $feed->error());
1979
1980         $permalink = $feed->get_permalink();
1981
1982         // Check at the feed level for updated contact name and/or photo
1983
1984         $name_updated  = '';
1985         $new_name = '';
1986         $photo_timestamp = '';
1987         $photo_url = '';
1988         $birthday = '';
1989
1990         $hubs = $feed->get_links('hub');
1991         logger('consume_feed: hubs: ' . print_r($hubs,true), LOGGER_DATA);
1992
1993         if(count($hubs))
1994                 $hub = implode(',', $hubs);
1995
1996         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
1997         if(! $rawtags)
1998                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
1999         if($rawtags) {
2000                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2001                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2002                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2003                         $new_name = $elems['name'][0]['data'];
2004                 }
2005                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2006                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2007                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2008                 }
2009
2010                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
2011                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
2012                 }
2013         }
2014
2015         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
2016                 logger('consume_feed: Updating photo for '.$contact['name'].' from '.$photo_url.' uid: '.$contact['uid']);
2017                 require_once("include/Photo.php");
2018                 $photo_failure = false;
2019                 $have_photo = false;
2020
2021                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2022                         intval($contact['id']),
2023                         intval($contact['uid'])
2024                 );
2025                 if(count($r)) {
2026                         $resource_id = $r[0]['resource-id'];
2027                         $have_photo = true;
2028                 }
2029                 else {
2030                         $resource_id = photo_new_resource();
2031                 }
2032
2033                 $img_str = fetch_url($photo_url,true);
2034                 // guess mimetype from headers or filename
2035                 $type = guess_image_type($photo_url,true);
2036
2037
2038                 $img = new Photo($img_str, $type);
2039                 if($img->is_valid()) {
2040                         if($have_photo) {
2041                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2042                                         dbesc($resource_id),
2043                                         intval($contact['id']),
2044                                         intval($contact['uid'])
2045                                 );
2046                         }
2047
2048                         $img->scaleImageSquare(175);
2049
2050                         $hash = $resource_id;
2051                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2052
2053                         $img->scaleImage(80);
2054                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2055
2056                         $img->scaleImage(48);
2057                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2058
2059                         $a = get_app();
2060
2061                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2062                                 WHERE `uid` = %d AND `id` = %d",
2063                                 dbesc(datetime_convert()),
2064                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2065                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2066                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2067                                 intval($contact['uid']),
2068                                 intval($contact['id'])
2069                         );
2070                 }
2071         }
2072
2073         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
2074                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2075                         intval($contact['uid']),
2076                         intval($contact['id'])
2077                 );
2078
2079                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d",
2080                         dbesc(notags(trim($new_name))),
2081                         dbesc(datetime_convert()),
2082                         intval($contact['uid']),
2083                         intval($contact['id'])
2084                 );
2085
2086                 // do our best to update the name on content items
2087
2088                 if(count($r)) {
2089                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2090                                 dbesc(notags(trim($new_name))),
2091                                 dbesc($r[0]['name']),
2092                                 dbesc($r[0]['url']),
2093                                 intval($contact['uid'])
2094                         );
2095                 }
2096         }
2097
2098         if(strlen($birthday)) {
2099                 if(substr($birthday,0,4) != $contact['bdyear']) {
2100                         logger('consume_feed: updating birthday: ' . $birthday);
2101
2102                         /**
2103                          *
2104                          * Add new birthday event for this person
2105                          *
2106                          * $bdtext is just a readable placeholder in case the event is shared
2107                          * with others. We will replace it during presentation to our $importer
2108                          * to contain a sparkle link and perhaps a photo.
2109                          *
2110                          */
2111
2112                         $bdtext = sprintf( t('%s\'s birthday'), $contact['name']);
2113                         $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ) ;
2114
2115
2116                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`)
2117                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
2118                                 intval($contact['uid']),
2119                                 intval($contact['id']),
2120                                 dbesc(datetime_convert()),
2121                                 dbesc(datetime_convert()),
2122                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
2123                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
2124                                 dbesc($bdtext),
2125                                 dbesc($bdtext2),
2126                                 dbesc('birthday')
2127                         );
2128
2129
2130                         // update bdyear
2131
2132                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d",
2133                                 dbesc(substr($birthday,0,4)),
2134                                 intval($contact['uid']),
2135                                 intval($contact['id'])
2136                         );
2137
2138                         // This function is called twice without reloading the contact
2139                         // Make sure we only create one event. This is why &$contact
2140                         // is a reference var in this function
2141
2142                         $contact['bdyear'] = substr($birthday,0,4);
2143                 }
2144
2145         }
2146
2147         $community_page = 0;
2148         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
2149         if($rawtags) {
2150                 $community_page = intval($rawtags[0]['data']);
2151         }
2152         if(is_array($contact) && intval($contact['forum']) != $community_page) {
2153                 q("update contact set forum = %d where id = %d",
2154                         intval($community_page),
2155                         intval($contact['id'])
2156                 );
2157                 $contact['forum'] = (string) $community_page;
2158         }
2159
2160
2161         // process any deleted entries
2162
2163         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
2164         if(is_array($del_entries) && count($del_entries) && $pass != 2) {
2165                 foreach($del_entries as $dentry) {
2166                         $deleted = false;
2167                         if(isset($dentry['attribs']['']['ref'])) {
2168                                 $uri = $dentry['attribs']['']['ref'];
2169                                 $deleted = true;
2170                                 if(isset($dentry['attribs']['']['when'])) {
2171                                         $when = $dentry['attribs']['']['when'];
2172                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
2173                                 }
2174                                 else
2175                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
2176                         }
2177                         if($deleted && is_array($contact)) {
2178                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` INNER JOIN `contact` on `item`.`contact-id` = `contact`.`id`
2179                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
2180                                         dbesc($uri),
2181                                         intval($importer['uid']),
2182                                         intval($contact['id'])
2183                                 );
2184                                 if(count($r)) {
2185                                         $item = $r[0];
2186
2187                                         if(! $item['deleted'])
2188                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
2189
2190                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2191                                                 $xo = parse_xml_string($item['object'],false);
2192                                                 $xt = parse_xml_string($item['target'],false);
2193                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
2194                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
2195                                                                 dbesc($xt->id),
2196                                                                 intval($importer['importer_uid'])
2197                                                         );
2198                                                         if(count($i)) {
2199
2200                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
2201
2202                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
2203                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
2204                                                                 $author_copy = (($item['origin']) ? true : false);
2205
2206                                                                 if($owner_remove && $author_copy)
2207                                                                         continue;
2208                                                                 if($author_remove || $owner_remove) {
2209                                                                         $tags = explode(',',$i[0]['tag']);
2210                                                                         $newtags = array();
2211                                                                         if(count($tags)) {
2212                                                                                 foreach($tags as $tag)
2213                                                                                         if(trim($tag) !== trim($xo->body))
2214                                                                                                 $newtags[] = trim($tag);
2215                                                                         }
2216                                                                         q("update item set tag = '%s' where id = %d",
2217                                                                                 dbesc(implode(',',$newtags)),
2218                                                                                 intval($i[0]['id'])
2219                                                                         );
2220                                                                         create_tags_from_item($i[0]['id']);
2221                                                                 }
2222                                                         }
2223                                                 }
2224                                         }
2225
2226                                         if($item['uri'] == $item['parent-uri']) {
2227                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2228                                                         `body` = '', `title` = ''
2229                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
2230                                                         dbesc($when),
2231                                                         dbesc(datetime_convert()),
2232                                                         dbesc($item['uri']),
2233                                                         intval($importer['uid'])
2234                                                 );
2235                                                 create_tags_from_itemuri($item['uri'], $importer['uid']);
2236                                                 create_files_from_itemuri($item['uri'], $importer['uid']);
2237                                                 update_thread_uri($item['uri'], $importer['uid']);
2238                                         }
2239                                         else {
2240                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2241                                                         `body` = '', `title` = ''
2242                                                         WHERE `uri` = '%s' AND `uid` = %d",
2243                                                         dbesc($when),
2244                                                         dbesc(datetime_convert()),
2245                                                         dbesc($uri),
2246                                                         intval($importer['uid'])
2247                                                 );
2248                                                 create_tags_from_itemuri($uri, $importer['uid']);
2249                                                 create_files_from_itemuri($uri, $importer['uid']);
2250                                                 if($item['last-child']) {
2251                                                         // ensure that last-child is set in case the comment that had it just got wiped.
2252                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
2253                                                                 dbesc(datetime_convert()),
2254                                                                 dbesc($item['parent-uri']),
2255                                                                 intval($item['uid'])
2256                                                         );
2257                                                         // who is the last child now?
2258                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `moderated` = 0 AND `uid` = %d
2259                                                                 ORDER BY `created` DESC LIMIT 1",
2260                                                                         dbesc($item['parent-uri']),
2261                                                                         intval($importer['uid'])
2262                                                         );
2263                                                         if(count($r)) {
2264                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
2265                                                                         intval($r[0]['id'])
2266                                                                 );
2267                                                         }
2268                                                 }
2269                                         }
2270                                 }
2271                         }
2272                 }
2273         }
2274
2275         // Now process the feed
2276
2277         if($feed->get_item_quantity()) {
2278
2279                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
2280
2281         // in inverse date order
2282                 if ($datedir)
2283                         $items = array_reverse($feed->get_items());
2284                 else
2285                         $items = $feed->get_items();
2286
2287
2288                 foreach($items as $item) {
2289
2290                         $is_reply = false;
2291                         $item_id = $item->get_id();
2292                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
2293                         if(isset($rawthread[0]['attribs']['']['ref'])) {
2294                                 $is_reply = true;
2295                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
2296                         }
2297
2298                         if(($is_reply) && is_array($contact)) {
2299
2300                                 if($pass == 1)
2301                                         continue;
2302
2303                                 // not allowed to post
2304
2305                                 if($contact['rel'] == CONTACT_IS_FOLLOWER)
2306                                         continue;
2307
2308
2309                                 // Have we seen it? If not, import it.
2310
2311                                 $item_id  = $item->get_id();
2312                                 $datarray = get_atom_elements($feed, $item, $contact);
2313
2314                                 if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
2315                                         $datarray['author-name'] = $contact['name'];
2316                                 if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
2317                                         $datarray['author-link'] = $contact['url'];
2318                                 if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
2319                                         $datarray['author-avatar'] = $contact['thumb'];
2320
2321                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
2322                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
2323                                         continue;
2324                                 }
2325
2326                                 $force_parent = false;
2327                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
2328                                         if($contact['network'] === NETWORK_OSTATUS)
2329                                                 $force_parent = true;
2330                                         if(strlen($datarray['title']))
2331                                                 unset($datarray['title']);
2332                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
2333                                                 dbesc(datetime_convert()),
2334                                                 dbesc($parent_uri),
2335                                                 intval($importer['uid'])
2336                                         );
2337                                         $datarray['last-child'] = 1;
2338                                         update_thread_uri($parent_uri, $importer['uid']);
2339                                 }
2340
2341
2342                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2343                                         dbesc($item_id),
2344                                         intval($importer['uid'])
2345                                 );
2346
2347                                 // Update content if 'updated' changes
2348
2349                                 if(count($r)) {
2350                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
2351
2352                                                 // do not accept (ignore) an earlier edit than one we currently have.
2353                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2354                                                         continue;
2355
2356                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
2357                                                         dbesc($datarray['title']),
2358                                                         dbesc($datarray['body']),
2359                                                         dbesc($datarray['tag']),
2360                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2361                                                         dbesc(datetime_convert()),
2362                                                         dbesc($item_id),
2363                                                         intval($importer['uid'])
2364                                                 );
2365                                                 create_tags_from_itemuri($item_id, $importer['uid']);
2366                                                 update_thread_uri($item_id, $importer['uid']);
2367                                         }
2368
2369                                         // update last-child if it changes
2370
2371                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2372                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
2373                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
2374                                                         dbesc(datetime_convert()),
2375                                                         dbesc($parent_uri),
2376                                                         intval($importer['uid'])
2377                                                 );
2378                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d",
2379                                                         intval($allow[0]['data']),
2380                                                         dbesc(datetime_convert()),
2381                                                         dbesc($item_id),
2382                                                         intval($importer['uid'])
2383                                                 );
2384                                                 update_thread_uri($item_id, $importer['uid']);
2385                                         }
2386                                         continue;
2387                                 }
2388
2389
2390                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
2391                                         // one way feed - no remote comment ability
2392                                         $datarray['last-child'] = 0;
2393                                 }
2394                                 $datarray['parent-uri'] = $parent_uri;
2395                                 $datarray['uid'] = $importer['uid'];
2396                                 $datarray['contact-id'] = $contact['id'];
2397                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
2398                                         $datarray['type'] = 'activity';
2399                                         $datarray['gravity'] = GRAVITY_LIKE;
2400                                         // only one like or dislike per person
2401                                         // splitted into two queries for performance issues
2402                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s') limit 1",
2403                                                 intval($datarray['uid']),
2404                                                 intval($datarray['contact-id']),
2405                                                 dbesc($datarray['verb']),
2406                                                 dbesc($parent_uri)
2407                                         );
2408                                         if($r && count($r))
2409                                                 continue;
2410
2411                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`thr-parent` = '%s') limit 1",
2412                                                 intval($datarray['uid']),
2413                                                 intval($datarray['contact-id']),
2414                                                 dbesc($datarray['verb']),
2415                                                 dbesc($parent_uri)
2416                                         );
2417                                         if($r && count($r))
2418                                                 continue;
2419                                 }
2420
2421                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2422                                         $xo = parse_xml_string($datarray['object'],false);
2423                                         $xt = parse_xml_string($datarray['target'],false);
2424
2425                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
2426                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
2427                                                         dbesc($xt->id),
2428                                                         intval($importer['importer_uid'])
2429                                                 );
2430                                                 if(! count($r))
2431                                                         continue;
2432
2433                                                 // extract tag, if not duplicate, add to parent item
2434                                                 if($xo->id && $xo->content) {
2435                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
2436                                                         if(! (stristr($r[0]['tag'],$newtag))) {
2437                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d",
2438                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . $newtag),
2439                                                                         intval($r[0]['id'])
2440                                                                 );
2441                                                                 create_tags_from_item($r[0]['id']);
2442                                                         }
2443                                                 }
2444                                         }
2445                                 }
2446
2447                                 $r = item_store($datarray,$force_parent);
2448                                 continue;
2449                         }
2450
2451                         else {
2452
2453                                 // Head post of a conversation. Have we seen it? If not, import it.
2454
2455                                 $item_id  = $item->get_id();
2456
2457                                 $datarray = get_atom_elements($feed, $item, $contact);
2458
2459                                 if(is_array($contact)) {
2460                                         if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
2461                                                 $datarray['author-name'] = $contact['name'];
2462                                         if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
2463                                                 $datarray['author-link'] = $contact['url'];
2464                                         if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
2465                                                 $datarray['author-avatar'] = $contact['thumb'];
2466                                 }
2467
2468                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
2469                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
2470                                         continue;
2471                                 }
2472
2473                                 // special handling for events
2474
2475                                 if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
2476                                         $ev = bbtoevent($datarray['body']);
2477                                         if(x($ev,'desc') && x($ev,'start')) {
2478                                                 $ev['uid'] = $importer['uid'];
2479                                                 $ev['uri'] = $item_id;
2480                                                 $ev['edited'] = $datarray['edited'];
2481                                                 $ev['private'] = $datarray['private'];
2482
2483                                                 if(is_array($contact))
2484                                                         $ev['cid'] = $contact['id'];
2485                                                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2486                                                         dbesc($item_id),
2487                                                         intval($importer['uid'])
2488                                                 );
2489                                                 if(count($r))
2490                                                         $ev['id'] = $r[0]['id'];
2491                                                 $xyz = event_store($ev);
2492                                                 continue;
2493                                         }
2494                                 }
2495
2496                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
2497                                         if(strlen($datarray['title']))
2498                                                 unset($datarray['title']);
2499                                         $datarray['last-child'] = 1;
2500                                 }
2501
2502
2503                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2504                                         dbesc($item_id),
2505                                         intval($importer['uid'])
2506                                 );
2507
2508                                 // Update content if 'updated' changes
2509
2510                                 if(count($r)) {
2511                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
2512
2513                                                 // do not accept (ignore) an earlier edit than one we currently have.
2514                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2515                                                         continue;
2516
2517                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
2518                                                         dbesc($datarray['title']),
2519                                                         dbesc($datarray['body']),
2520                                                         dbesc($datarray['tag']),
2521                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2522                                                         dbesc(datetime_convert()),
2523                                                         dbesc($item_id),
2524                                                         intval($importer['uid'])
2525                                                 );
2526                                                 create_tags_from_itemuri($item_id, $importer['uid']);
2527                                                 update_thread_uri($item_id, $importer['uid']);
2528                                         }
2529
2530                                         // update last-child if it changes
2531
2532                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2533                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
2534                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
2535                                                         intval($allow[0]['data']),
2536                                                         dbesc(datetime_convert()),
2537                                                         dbesc($item_id),
2538                                                         intval($importer['uid'])
2539                                                 );
2540                                                 update_thread_uri($item_id, $importer['uid']);
2541                                         }
2542                                         continue;
2543                                 }
2544
2545                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
2546                                         logger('consume-feed: New follower');
2547                                         new_follower($importer,$contact,$datarray,$item);
2548                                         return;
2549                                 }
2550                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
2551                                         lose_follower($importer,$contact,$datarray,$item);
2552                                         return;
2553                                 }
2554
2555                                 if(activity_match($datarray['verb'],ACTIVITY_REQ_FRIEND)) {
2556                                         logger('consume-feed: New friend request');
2557                                         new_follower($importer,$contact,$datarray,$item,true);
2558                                         return;
2559                                 }
2560                                 if(activity_match($datarray['verb'],ACTIVITY_UNFRIEND))  {
2561                                         lose_sharer($importer,$contact,$datarray,$item);
2562                                         return;
2563                                 }
2564
2565
2566                                 if(! is_array($contact))
2567                                         return;
2568
2569
2570                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
2571                                                 // one way feed - no remote comment ability
2572                                                 $datarray['last-child'] = 0;
2573                                 }
2574                                 if($contact['network'] === NETWORK_FEED)
2575                                         $datarray['private'] = 2;
2576
2577                                 $datarray['parent-uri'] = $item_id;
2578                                 $datarray['uid'] = $importer['uid'];
2579                                 $datarray['contact-id'] = $contact['id'];
2580
2581                                 if(! link_compare($datarray['owner-link'],$contact['url'])) {
2582                                         // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
2583                                         // but otherwise there's a possible data mixup on the sender's system.
2584                                         // the tgroup delivery code called from item_store will correct it if it's a forum,
2585                                         // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
2586                                         logger('consume_feed: Correcting item owner.', LOGGER_DEBUG);
2587                                         $datarray['owner-name']   = $contact['name'];
2588                                         $datarray['owner-link']   = $contact['url'];
2589                                         $datarray['owner-avatar'] = $contact['thumb'];
2590                                 }
2591
2592                                 // We've allowed "followers" to reach this point so we can decide if they are
2593                                 // posting an @-tag delivery, which followers are allowed to do for certain
2594                                 // page types. Now that we've parsed the post, let's check if it is legit. Otherwise ignore it.
2595
2596                                 if(($contact['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['uid'],$datarray)))
2597                                         continue;
2598
2599                                 // This is my contact on another system, but it's really me.
2600                                 // Turn this into a wall post.
2601
2602                                 if($contact['remote_self'] AND (($contact['network'] === NETWORK_FEED) OR !$datarray['private'])) {
2603                                         if ($contact['remote_self'] == 1)
2604                                                 // Prevent that forwarded posts will be forwarded again
2605                                                 $notify = (normalise_link($datarray['author-link']) == normalise_link($datarray['owner-link']));
2606                                         elseif ($contact['remote_self'] == 2) {
2607                                                 $r = q("SELECT `id`,`url`,`name`,`photo`,`network` FROM `contact` WHERE `uid` = %d AND `self`", intval($importer['uid']));
2608                                                 if (count($r)) {
2609                                                         $datarray['contact-id'] = $r[0]["id"];
2610
2611                                                         $datarray['owner-name'] = $r[0]["name"];
2612                                                         $datarray['owner-link'] = $r[0]["url"];
2613                                                         $datarray['owner-avatar'] = $r[0]["photo"];
2614
2615                                                         $datarray['author-name']   = $datarray['owner-name'];
2616                                                         $datarray['author-link']   = $datarray['owner-link'];
2617                                                         $datarray['author-avatar'] = $datarray['owner-avatar'];
2618                                                 }
2619                                                 $notify = true;
2620                                         }
2621
2622                                         if (!isset($datarray["app"]) OR ($datarray["app"] == ""))
2623                                                 $datarray["app"] = network_to_name($contact['network']);
2624
2625                                         if ($contact['network'] === NETWORK_FEED)
2626                                                 $datarray['private'] = 0;
2627                                         elseif ($notify) {
2628                                                 $datarray2 = $datarray;
2629
2630                                                 // Create a new guid and uri and post it as a forwarded post
2631                                                 $datarray2["guid"] = get_guid(32);
2632                                                 $datarray2["uri"] = item_new_uri($a->get_hostname(),$importer['uid']);
2633                                                 $r = q("SELECT `id`,`url`,`name`,`photo`,`network` FROM `contact` WHERE `uid` = %d AND `self`", intval($importer['uid']));
2634                                                 if (count($r)) {
2635                                                         $datarray2['contact-id'] = $r[0]["id"];
2636
2637                                                         $datarray2['owner-name'] = $r[0]["name"];
2638                                                         $datarray2['owner-link'] = $r[0]["url"];
2639                                                         $datarray2['owner-avatar'] = $r[0]["photo"];
2640                                                 }
2641
2642                                                 // Store the forwarded post
2643                                                 $r = item_store($datarray2, false, true);
2644
2645                                                 // Let the original item just be a regular item
2646                                                 $notify = false;
2647                                         }
2648                                 } else
2649                                         $notify = false;
2650
2651                                 $r = item_store($datarray, false, $notify);
2652                                 continue;
2653
2654                         }
2655                 }
2656         }
2657 }
2658
2659 function local_delivery($importer,$data) {
2660         $a = get_app();
2661
2662     logger(__function__, LOGGER_TRACE);
2663
2664         if($importer['readonly']) {
2665                 // We aren't receiving stuff from this person. But we will quietly ignore them
2666                 // rather than a blatant "go away" message.
2667                 logger('local_delivery: ignoring');
2668                 return 0;
2669                 //NOTREACHED
2670         }
2671
2672         // Consume notification feed. This may differ from consuming a public feed in several ways
2673         // - might contain email or friend suggestions
2674         // - might contain remote followup to our message
2675         //              - in which case we need to accept it and then notify other conversants
2676         // - we may need to send various email notifications
2677
2678         $feed = new SimplePie();
2679         $feed->set_raw_data($data);
2680         $feed->enable_order_by_date(false);
2681         $feed->init();
2682
2683
2684         if($feed->error())
2685                 logger('local_delivery: Error parsing XML: ' . $feed->error());
2686
2687
2688         // Check at the feed level for updated contact name and/or photo
2689
2690         $name_updated  = '';
2691         $new_name = '';
2692         $photo_timestamp = '';
2693         $photo_url = '';
2694
2695
2696         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
2697
2698 // Fallback should not be needed here. If it isn't DFRN it won't have DFRN updated tags
2699 //      if(! $rawtags)
2700 //              $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
2701
2702         if($rawtags) {
2703                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2704                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2705                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2706                         $new_name = $elems['name'][0]['data'];
2707                 }
2708                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2709                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2710                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2711                 }
2712         }
2713
2714         if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $importer['avatar-date'])) {
2715                 logger('local_delivery: Updating photo for ' . $importer['name']);
2716                 require_once("include/Photo.php");
2717                 $photo_failure = false;
2718                 $have_photo = false;
2719
2720                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2721                         intval($importer['id']),
2722                         intval($importer['importer_uid'])
2723                 );
2724                 if(count($r)) {
2725                         $resource_id = $r[0]['resource-id'];
2726                         $have_photo = true;
2727                 }
2728                 else {
2729                         $resource_id = photo_new_resource();
2730                 }
2731
2732                 $img_str = fetch_url($photo_url,true);
2733                 // guess mimetype from headers or filename
2734                 $type = guess_image_type($photo_url,true);
2735
2736
2737                 $img = new Photo($img_str, $type);
2738                 if($img->is_valid()) {
2739                         if($have_photo) {
2740                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2741                                         dbesc($resource_id),
2742                                         intval($importer['id']),
2743                                         intval($importer['importer_uid'])
2744                                 );
2745                         }
2746
2747                         $img->scaleImageSquare(175);
2748
2749                         $hash = $resource_id;
2750                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2751
2752                         $img->scaleImage(80);
2753                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2754
2755                         $img->scaleImage(48);
2756                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2757
2758                         $a = get_app();
2759
2760                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2761                                 WHERE `uid` = %d AND `id` = %d",
2762                                 dbesc(datetime_convert()),
2763                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2764                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2765                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2766                                 intval($importer['importer_uid']),
2767                                 intval($importer['id'])
2768                         );
2769                 }
2770         }
2771
2772         if(($name_updated) && (strlen($new_name)) && ($name_updated > $importer['name-date'])) {
2773                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2774                         intval($importer['importer_uid']),
2775                         intval($importer['id'])
2776                 );
2777
2778                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d",
2779                         dbesc(notags(trim($new_name))),
2780                         dbesc(datetime_convert()),
2781                         intval($importer['importer_uid']),
2782                         intval($importer['id'])
2783                 );
2784
2785                 // do our best to update the name on content items
2786
2787                 if(count($r)) {
2788                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2789                                 dbesc(notags(trim($new_name))),
2790                                 dbesc($r[0]['name']),
2791                                 dbesc($r[0]['url']),
2792                                 intval($importer['importer_uid'])
2793                         );
2794                 }
2795         }
2796
2797
2798
2799         // Currently unsupported - needs a lot of work
2800         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
2801         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
2802                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
2803                 $newloc = array();
2804                 $newloc['uid'] = $importer['importer_uid'];
2805                 $newloc['cid'] = $importer['id'];
2806                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
2807                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
2808                 $newloc['thumb'] = notags(unxmlify($base['thumb'][0]['data']));
2809                 $newloc['micro'] = notags(unxmlify($base['micro'][0]['data']));
2810                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
2811                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
2812                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
2813                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
2814                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
2815                 $newloc['sitepubkey'] = notags(unxmlify($base['sitepubkey'][0]['data']));
2816                 /** relocated user must have original key pair */
2817                 /*$newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
2818                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));*/
2819
2820                 logger("items:relocate contact ".print_r($newloc, true).print_r($importer, true), LOGGER_DEBUG);
2821
2822                 // update contact
2823                 $r = q("SELECT photo, url FROM contact WHERE id=%d AND uid=%d;",
2824                         intval($importer['id']),
2825                         intval($importer['importer_uid']));
2826                 if ($r === false)
2827                         return 1;
2828                 $old = $r[0];
2829
2830                 $x = q("UPDATE contact SET
2831                                         name = '%s',
2832                                         photo = '%s',
2833                                         thumb = '%s',
2834                                         micro = '%s',
2835                                         url = '%s',
2836                                         request = '%s',
2837                                         confirm = '%s',
2838                                         notify = '%s',
2839                                         poll = '%s',
2840                                         `site-pubkey` = '%s'
2841                         WHERE id=%d AND uid=%d;",
2842                                         dbesc($newloc['name']),
2843                                         dbesc($newloc['photo']),
2844                                         dbesc($newloc['thumb']),
2845                                         dbesc($newloc['micro']),
2846                                         dbesc($newloc['url']),
2847                                         dbesc($newloc['request']),
2848                                         dbesc($newloc['confirm']),
2849                                         dbesc($newloc['notify']),
2850                                         dbesc($newloc['poll']),
2851                                         dbesc($newloc['sitepubkey']),
2852                                         intval($importer['id']),
2853                                         intval($importer['importer_uid']));
2854
2855                 if ($x === false)
2856                         return 1;
2857                 // update items
2858                 $fields = array(
2859                         'owner-link' => array($old['url'], $newloc['url']),
2860                         'author-link' => array($old['url'], $newloc['url']),
2861                         'owner-avatar' => array($old['photo'], $newloc['photo']),
2862                         'author-avatar' => array($old['photo'], $newloc['photo']),
2863                         );
2864                 foreach ($fields as $n=>$f){
2865                         $x = q("UPDATE `item` SET `%s`='%s' WHERE `%s`='%s' AND uid=%d",
2866                                         $n, dbesc($f[1]),
2867                                         $n, dbesc($f[0]),
2868                                         intval($importer['importer_uid']));
2869                                 if ($x === false)
2870                                         return 1;
2871                         }
2872
2873                 // TODO
2874                 // merge with current record, current contents have priority
2875                 // update record, set url-updated
2876                 // update profile photos
2877                 // schedule a scan?
2878                 return 0;
2879         }
2880
2881
2882         // handle friend suggestion notification
2883
2884         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
2885         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
2886                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
2887                 $fsugg = array();
2888                 $fsugg['uid'] = $importer['importer_uid'];
2889                 $fsugg['cid'] = $importer['id'];
2890                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
2891                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
2892                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
2893                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
2894                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
2895
2896                 // Does our member already have a friend matching this description?
2897
2898                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
2899                         dbesc($fsugg['name']),
2900                         dbesc(normalise_link($fsugg['url'])),
2901                         intval($fsugg['uid'])
2902                 );
2903                 if(count($r))
2904                         return 0;
2905
2906                 // Do we already have an fcontact record for this person?
2907
2908                 $fid = 0;
2909                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2910                         dbesc($fsugg['url']),
2911                         dbesc($fsugg['name']),
2912                         dbesc($fsugg['request'])
2913                 );
2914                 if(count($r)) {
2915                         $fid = $r[0]['id'];
2916
2917                         // OK, we do. Do we already have an introduction for this person ?
2918                         $r = q("select id from intro where uid = %d and fid = %d limit 1",
2919                                 intval($fsugg['uid']),
2920                                 intval($fid)
2921                         );
2922                         if(count($r))
2923                                 return 0;
2924                 }
2925                 if(! $fid)
2926                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
2927                         dbesc($fsugg['name']),
2928                         dbesc($fsugg['url']),
2929                         dbesc($fsugg['photo']),
2930                         dbesc($fsugg['request'])
2931                 );
2932                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2933                         dbesc($fsugg['url']),
2934                         dbesc($fsugg['name']),
2935                         dbesc($fsugg['request'])
2936                 );
2937                 if(count($r)) {
2938                         $fid = $r[0]['id'];
2939                 }
2940                 // database record did not get created. Quietly give up.
2941                 else
2942                         return 0;
2943
2944
2945                 $hash = random_string();
2946
2947                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
2948                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
2949                         intval($fsugg['uid']),
2950                         intval($fid),
2951                         intval($fsugg['cid']),
2952                         dbesc($fsugg['body']),
2953                         dbesc($hash),
2954                         dbesc(datetime_convert()),
2955                         intval(0)
2956                 );
2957
2958                 notification(array(
2959                         'type'         => NOTIFY_SUGGEST,
2960                         'notify_flags' => $importer['notify-flags'],
2961                         'language'     => $importer['language'],
2962                         'to_name'      => $importer['username'],
2963                         'to_email'     => $importer['email'],
2964                         'uid'          => $importer['importer_uid'],
2965                         'item'         => $fsugg,
2966                         'link'         => $a->get_baseurl() . '/notifications/intros',
2967                         'source_name'  => $importer['name'],
2968                         'source_link'  => $importer['url'],
2969                         'source_photo' => $importer['photo'],
2970                         'verb'         => ACTIVITY_REQ_FRIEND,
2971                         'otype'        => 'intro'
2972                 ));
2973
2974                 return 0;
2975         }
2976
2977         $ismail = false;
2978
2979         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
2980         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
2981
2982                 logger('local_delivery: private message received');
2983
2984                 $ismail = true;
2985                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
2986
2987                 $msg = array();
2988                 $msg['uid'] = $importer['importer_uid'];
2989                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
2990                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
2991                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
2992                 $msg['contact-id'] = $importer['id'];
2993                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
2994                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
2995                 $msg['seen'] = 0;
2996                 $msg['replied'] = 0;
2997                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
2998                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
2999                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
3000
3001                 dbesc_array($msg);
3002
3003                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
3004                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
3005
3006                 // send notifications.
3007
3008                 require_once('include/enotify.php');
3009
3010                 $notif_params = array(
3011                         'type' => NOTIFY_MAIL,
3012                         'notify_flags' => $importer['notify-flags'],
3013                         'language' => $importer['language'],
3014                         'to_name' => $importer['username'],
3015                         'to_email' => $importer['email'],
3016                         'uid' => $importer['importer_uid'],
3017                         'item' => $msg,
3018                         'source_name' => $msg['from-name'],
3019                         'source_link' => $importer['url'],
3020                         'source_photo' => $importer['thumb'],
3021                         'verb' => ACTIVITY_POST,
3022                         'otype' => 'mail'
3023                 );
3024
3025                 notification($notif_params);
3026                 return 0;
3027
3028                 // NOTREACHED
3029         }
3030
3031         $community_page = 0;
3032         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
3033         if($rawtags) {
3034                 $community_page = intval($rawtags[0]['data']);
3035         }
3036         if(intval($importer['forum']) != $community_page) {
3037                 q("update contact set forum = %d where id = %d",
3038                         intval($community_page),
3039                         intval($importer['id'])
3040                 );
3041                 $importer['forum'] = (string) $community_page;
3042         }
3043
3044         logger('local_delivery: feed item count = ' . $feed->get_item_quantity());
3045
3046         // process any deleted entries
3047
3048         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
3049         if(is_array($del_entries) && count($del_entries)) {
3050                 foreach($del_entries as $dentry) {
3051                         $deleted = false;
3052                         if(isset($dentry['attribs']['']['ref'])) {
3053                                 $uri = $dentry['attribs']['']['ref'];
3054                                 $deleted = true;
3055                                 if(isset($dentry['attribs']['']['when'])) {
3056                                         $when = $dentry['attribs']['']['when'];
3057                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
3058                                 }
3059                                 else
3060                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
3061                         }
3062                         if($deleted) {
3063
3064                                 // check for relayed deletes to our conversation
3065
3066                                 $is_reply = false;
3067                                 $r = q("select * from item where uri = '%s' and uid = %d limit 1",
3068                                         dbesc($uri),
3069                                         intval($importer['importer_uid'])
3070                                 );
3071                                 if(count($r)) {
3072                                         $parent_uri = $r[0]['parent-uri'];
3073                                         if($r[0]['id'] != $r[0]['parent'])
3074                                                 $is_reply = true;
3075                                 }
3076
3077                                 if($is_reply) {
3078                                         $community = false;
3079
3080                                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
3081                                                 $sql_extra = '';
3082                                                 $community = true;
3083                                                 logger('local_delivery: possible community delete');
3084                                         }
3085                                         else
3086                                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
3087
3088                                         // was the top-level post for this reply written by somebody on this site?
3089                                         // Specifically, the recipient?
3090
3091                                         $is_a_remote_delete = false;
3092
3093                                         // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
3094                                         $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
3095                                                 `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
3096                                                 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
3097                                                 WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
3098                                                 AND `item`.`uid` = %d
3099                                                 $sql_extra
3100                                                 LIMIT 1",
3101                                                 dbesc($parent_uri),
3102                                                 dbesc($parent_uri),
3103                                                 dbesc($parent_uri),
3104                                                 intval($importer['importer_uid'])
3105                                         );
3106                                         if($r && count($r))
3107                                                 $is_a_remote_delete = true;
3108
3109                                         // Does this have the characteristics of a community or private group comment?
3110                                         // If it's a reply to a wall post on a community/prvgroup page it's a
3111                                         // valid community comment. Also forum_mode makes it valid for sure.
3112                                         // If neither, it's not.
3113
3114                                         if($is_a_remote_delete && $community) {
3115                                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
3116                                                         $is_a_remote_delete = false;
3117                                                         logger('local_delivery: not a community delete');
3118                                                 }
3119                                         }
3120
3121                                         if($is_a_remote_delete) {
3122                                                 logger('local_delivery: received remote delete');
3123                                         }
3124                                 }
3125
3126                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` INNER JOIN contact on `item`.`contact-id` = `contact`.`id`
3127                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
3128                                         dbesc($uri),
3129                                         intval($importer['importer_uid']),
3130                                         intval($importer['id'])
3131                                 );
3132
3133                                 if(count($r)) {
3134                                         $item = $r[0];
3135
3136                                         if($item['deleted'])
3137                                                 continue;
3138
3139                                         logger('local_delivery: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
3140
3141                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3142                                                 $xo = parse_xml_string($item['object'],false);
3143                                                 $xt = parse_xml_string($item['target'],false);
3144
3145                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
3146                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
3147                                                                 dbesc($xt->id),
3148                                                                 intval($importer['importer_uid'])
3149                                                         );
3150                                                         if(count($i)) {
3151
3152                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
3153
3154                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
3155                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
3156                                                                 $author_copy = (($item['origin']) ? true : false);
3157
3158                                                                 if($owner_remove && $author_copy)
3159                                                                         continue;
3160                                                                 if($author_remove || $owner_remove) {
3161                                                                         $tags = explode(',',$i[0]['tag']);
3162                                                                         $newtags = array();
3163                                                                         if(count($tags)) {
3164                                                                                 foreach($tags as $tag)
3165                                                                                         if(trim($tag) !== trim($xo->body))
3166                                                                                                 $newtags[] = trim($tag);
3167                                                                         }
3168                                                                         q("update item set tag = '%s' where id = %d",
3169                                                                                 dbesc(implode(',',$newtags)),
3170                                                                                 intval($i[0]['id'])
3171                                                                         );
3172                                                                         create_tags_from_item($i[0]['id']);
3173                                                                 }
3174                                                         }
3175                                                 }
3176                                         }
3177
3178                                         if($item['uri'] == $item['parent-uri']) {
3179                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
3180                                                         `body` = '', `title` = ''
3181                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
3182                                                         dbesc($when),
3183                                                         dbesc(datetime_convert()),
3184                                                         dbesc($item['uri']),
3185                                                         intval($importer['importer_uid'])
3186                                                 );
3187                                                 create_tags_from_itemuri($item['uri'], $importer['importer_uid']);
3188                                                 create_files_from_itemuri($item['uri'], $importer['importer_uid']);
3189                                                 update_thread_uri($item['uri'], $importer['importer_uid']);
3190                                         }
3191                                         else {
3192                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
3193                                                         `body` = '', `title` = ''
3194                                                         WHERE `uri` = '%s' AND `uid` = %d",
3195                                                         dbesc($when),
3196                                                         dbesc(datetime_convert()),
3197                                                         dbesc($uri),
3198                                                         intval($importer['importer_uid'])
3199                                                 );
3200                                                 create_tags_from_itemuri($uri, $importer['importer_uid']);
3201                                                 create_files_from_itemuri($uri, $importer['importer_uid']);
3202                                                 update_thread_uri($uri, $importer['importer_uid']);
3203                                                 if($item['last-child']) {
3204                                                         // ensure that last-child is set in case the comment that had it just got wiped.
3205                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
3206                                                                 dbesc(datetime_convert()),
3207                                                                 dbesc($item['parent-uri']),
3208                                                                 intval($item['uid'])
3209                                                         );
3210                                                         // who is the last child now?
3211                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
3212                                                                 ORDER BY `created` DESC LIMIT 1",
3213                                                                         dbesc($item['parent-uri']),
3214                                                                         intval($importer['importer_uid'])
3215                                                         );
3216                                                         if(count($r)) {
3217                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
3218                                                                         intval($r[0]['id'])
3219                                                                 );
3220                                                         }
3221                                                 }
3222                                                 // if this is a relayed delete, propagate it to other recipients
3223
3224                                                 if($is_a_remote_delete)
3225                                                         proc_run('php',"include/notifier.php","drop",$item['id']);
3226                                         }
3227                                 }
3228                         }
3229                 }
3230         }
3231
3232
3233         foreach($feed->get_items() as $item) {
3234
3235                 $is_reply = false;
3236                 $item_id = $item->get_id();
3237                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
3238                 if(isset($rawthread[0]['attribs']['']['ref'])) {
3239                         $is_reply = true;
3240                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
3241                 }
3242
3243                 if($is_reply) {
3244                         $community = false;
3245
3246                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
3247                                 $sql_extra = '';
3248                                 $community = true;
3249                                 logger('local_delivery: possible community reply');
3250                         }
3251                         else
3252                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
3253
3254                         // was the top-level post for this reply written by somebody on this site?
3255                         // Specifically, the recipient?
3256
3257                         $is_a_remote_comment = false;
3258                         $top_uri = $parent_uri;
3259
3260                         $r = q("select `item`.`parent-uri` from `item`
3261                                 WHERE `item`.`uri` = '%s'
3262                                 LIMIT 1",
3263                                 dbesc($parent_uri)
3264                         );
3265                         if($r && count($r)) {
3266                                 $top_uri = $r[0]['parent-uri'];
3267
3268                                 // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
3269                                 $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
3270                                         `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
3271                                         INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
3272                                         WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
3273                                         AND `item`.`uid` = %d
3274                                         $sql_extra
3275                                         LIMIT 1",
3276                                         dbesc($top_uri),
3277                                         dbesc($top_uri),
3278                                         dbesc($top_uri),
3279                                         intval($importer['importer_uid'])
3280                                 );
3281                                 if($r && count($r))
3282                                         $is_a_remote_comment = true;
3283                         }
3284
3285                         // Does this have the characteristics of a community or private group comment?
3286                         // If it's a reply to a wall post on a community/prvgroup page it's a
3287                         // valid community comment. Also forum_mode makes it valid for sure.
3288                         // If neither, it's not.
3289
3290                         if($is_a_remote_comment && $community) {
3291                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
3292                                         $is_a_remote_comment = false;
3293                                         logger('local_delivery: not a community reply');
3294                                 }
3295                         }
3296
3297                         if($is_a_remote_comment) {
3298                                 logger('local_delivery: received remote comment');
3299                                 $is_like = false;
3300                                 // remote reply to our post. Import and then notify everybody else.
3301
3302                                 $datarray = get_atom_elements($feed, $item);
3303
3304                                 $r = q("SELECT `id`, `uid`, `last-child`, `edited`, `body`  FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3305                                         dbesc($item_id),
3306                                         intval($importer['importer_uid'])
3307                                 );
3308
3309                                 // Update content if 'updated' changes
3310
3311                                 if(count($r)) {
3312                                         $iid = $r[0]['id'];
3313                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
3314
3315                                                 // do not accept (ignore) an earlier edit than one we currently have.
3316                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3317                                                         continue;
3318
3319                                                 logger('received updated comment' , LOGGER_DEBUG);
3320                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3321                                                         dbesc($datarray['title']),
3322                                                         dbesc($datarray['body']),
3323                                                         dbesc($datarray['tag']),
3324                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3325                                                         dbesc(datetime_convert()),
3326                                                         dbesc($item_id),
3327                                                         intval($importer['importer_uid'])
3328                                                 );
3329                                                 create_tags_from_itemuri($item_id, $importer['importer_uid']);
3330
3331                                                 proc_run('php',"include/notifier.php","comment-import",$iid);
3332
3333                                         }
3334
3335                                         continue;
3336                                 }
3337
3338
3339
3340                                 $own = q("select name,url,thumb from contact where uid = %d and self = 1 limit 1",
3341                                         intval($importer['importer_uid'])
3342                                 );
3343
3344
3345                                 $datarray['type'] = 'remote-comment';
3346                                 $datarray['wall'] = 1;
3347                                 $datarray['parent-uri'] = $parent_uri;
3348                                 $datarray['uid'] = $importer['importer_uid'];
3349                                 $datarray['owner-name'] = $own[0]['name'];
3350                                 $datarray['owner-link'] = $own[0]['url'];
3351                                 $datarray['owner-avatar'] = $own[0]['thumb'];
3352                                 $datarray['contact-id'] = $importer['id'];
3353
3354                                 if(($datarray['verb'] === ACTIVITY_LIKE) || ($datarray['verb'] === ACTIVITY_DISLIKE)) {
3355                                         $is_like = true;
3356                                         $datarray['type'] = 'activity';
3357                                         $datarray['gravity'] = GRAVITY_LIKE;
3358                                         $datarray['last-child'] = 0;
3359                                         // only one like or dislike per person
3360                                         // splitted into two queries for performance issues
3361                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`parent-uri` = '%s') and deleted = 0 limit 1",
3362                                                 intval($datarray['uid']),
3363                                                 intval($datarray['contact-id']),
3364                                                 dbesc($datarray['verb']),
3365                                                 dbesc($datarray['parent-uri'])
3366
3367                                         );
3368                                         if($r && count($r))
3369                                                 continue;
3370
3371                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`thr-parent` = '%s') and deleted = 0 limit 1",
3372                                                 intval($datarray['uid']),
3373                                                 intval($datarray['contact-id']),
3374                                                 dbesc($datarray['verb']),
3375                                                 dbesc($datarray['parent-uri'])
3376
3377                                         );
3378                                         if($r && count($r))
3379                                                 continue;
3380                                 }
3381
3382                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3383
3384                                         $xo = parse_xml_string($datarray['object'],false);
3385                                         $xt = parse_xml_string($datarray['target'],false);
3386
3387                                         if(($xt->type == ACTIVITY_OBJ_NOTE) && ($xt->id)) {
3388
3389                                                 // fetch the parent item
3390
3391                                                 $tagp = q("select * from item where uri = '%s' and uid = %d limit 1",
3392                                                         dbesc($xt->id),
3393                                                         intval($importer['importer_uid'])
3394                                                 );
3395                                                 if(! count($tagp))
3396                                                         continue;
3397
3398                                                 // extract tag, if not duplicate, and this user allows tags, add to parent item
3399
3400                                                 if($xo->id && $xo->content) {
3401                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
3402                                                         if(! (stristr($tagp[0]['tag'],$newtag))) {
3403                                                                 $i = q("SELECT `blocktags` FROM `user` where `uid` = %d LIMIT 1",
3404                                                                         intval($importer['importer_uid'])
3405                                                                 );
3406                                                                 if(count($i) && ! intval($i[0]['blocktags'])) {
3407                                                                         q("UPDATE item SET tag = '%s', `edited` = '%s', `changed` = '%s' WHERE id = %d",
3408                                                                                 dbesc($tagp[0]['tag'] . (strlen($tagp[0]['tag']) ? ',' : '') . $newtag),
3409                                                                                 intval($tagp[0]['id']),
3410                                                                                 dbesc(datetime_convert()),
3411                                                                                 dbesc(datetime_convert())
3412                                                                         );
3413                                                                         create_tags_from_item($tagp[0]['id']);
3414                                                                 }
3415                                                         }
3416                                                 }
3417                                         }
3418                                 }
3419
3420
3421                                 $posted_id = item_store($datarray);
3422                                 $parent = 0;
3423
3424                                 if($posted_id) {
3425                                         $r = q("SELECT `parent`, `parent-uri` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
3426                                                 intval($posted_id),
3427                                                 intval($importer['importer_uid'])
3428                                         );
3429                                         if(count($r)) {
3430                                                 $parent = $r[0]['parent'];
3431                                                 $parent_uri = $r[0]['parent-uri'];
3432                                         }
3433
3434                                         if(! $is_like) {
3435                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
3436                                                         dbesc(datetime_convert()),
3437                                                         intval($importer['importer_uid']),
3438                                                         intval($r[0]['parent'])
3439                                                 );
3440
3441                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d",
3442                                                         dbesc(datetime_convert()),
3443                                                         intval($importer['importer_uid']),
3444                                                         intval($posted_id)
3445                                                 );
3446                                         }
3447
3448                                         if($posted_id && $parent) {
3449
3450                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
3451
3452                                                 if((! $is_like) && (! $importer['self'])) {
3453
3454                                                         require_once('include/enotify.php');
3455
3456                                                         notification(array(
3457                                                                 'type'         => NOTIFY_COMMENT,
3458                                                                 'notify_flags' => $importer['notify-flags'],
3459                                                                 'language'     => $importer['language'],
3460                                                                 'to_name'      => $importer['username'],
3461                                                                 'to_email'     => $importer['email'],
3462                                                                 'uid'          => $importer['importer_uid'],
3463                                                                 'item'         => $datarray,
3464                                                                 'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3465                                                                 'source_name'  => stripslashes($datarray['author-name']),
3466                                                                 'source_link'  => $datarray['author-link'],
3467                                                                 'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3468                                                                         ? $importer['thumb'] : $datarray['author-avatar']),
3469                                                                 'verb'         => ACTIVITY_POST,
3470                                                                 'otype'        => 'item',
3471                                                                 'parent'       => $parent,
3472                                                                 'parent_uri'   => $parent_uri,
3473                                                         ));
3474
3475                                                 }
3476                                         }
3477
3478                                         return 0;
3479                                         // NOTREACHED
3480                                 }
3481                         }
3482                         else {
3483
3484                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
3485
3486                                 $item_id  = $item->get_id();
3487                                 $datarray = get_atom_elements($feed,$item);
3488
3489                                 if($importer['rel'] == CONTACT_IS_FOLLOWER)
3490                                         continue;
3491
3492                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3493                                         dbesc($item_id),
3494                                         intval($importer['importer_uid'])
3495                                 );
3496
3497                                 // Update content if 'updated' changes
3498
3499                                 if(count($r)) {
3500                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
3501
3502                                                 // do not accept (ignore) an earlier edit than one we currently have.
3503                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3504                                                         continue;
3505
3506                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3507                                                         dbesc($datarray['title']),
3508                                                         dbesc($datarray['body']),
3509                                                         dbesc($datarray['tag']),
3510                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3511                                                         dbesc(datetime_convert()),
3512                                                         dbesc($item_id),
3513                                                         intval($importer['importer_uid'])
3514                                                 );
3515                                                 create_tags_from_itemuri($item_id, $importer['importer_uid']);
3516                                         }
3517
3518                                         // update last-child if it changes
3519
3520                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3521                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
3522                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
3523                                                         dbesc(datetime_convert()),
3524                                                         dbesc($parent_uri),
3525                                                         intval($importer['importer_uid'])
3526                                                 );
3527                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d",
3528                                                         intval($allow[0]['data']),
3529                                                         dbesc(datetime_convert()),
3530                                                         dbesc($item_id),
3531                                                         intval($importer['importer_uid'])
3532                                                 );
3533                                         }
3534                                         continue;
3535                                 }
3536
3537                                 $datarray['parent-uri'] = $parent_uri;
3538                                 $datarray['uid'] = $importer['importer_uid'];
3539                                 $datarray['contact-id'] = $importer['id'];
3540                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
3541                                         $datarray['type'] = 'activity';
3542                                         $datarray['gravity'] = GRAVITY_LIKE;
3543                                         // only one like or dislike per person
3544                                         // splitted into two queries for performance issues
3545                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s') limit 1",
3546                                                 intval($datarray['uid']),
3547                                                 intval($datarray['contact-id']),
3548                                                 dbesc($datarray['verb']),
3549                                                 dbesc($parent_uri)
3550                                         );
3551                                         if($r && count($r))
3552                                                 continue;
3553
3554                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`thr-parent` = '%s') limit 1",
3555                                                 intval($datarray['uid']),
3556                                                 intval($datarray['contact-id']),
3557                                                 dbesc($datarray['verb']),
3558                                                 dbesc($parent_uri)
3559                                         );
3560                                         if($r && count($r))
3561                                                 continue;
3562
3563                                 }
3564
3565                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3566
3567                                         $xo = parse_xml_string($datarray['object'],false);
3568                                         $xt = parse_xml_string($datarray['target'],false);
3569
3570                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
3571                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
3572                                                         dbesc($xt->id),
3573                                                         intval($importer['importer_uid'])
3574                                                 );
3575                                                 if(! count($r))
3576                                                         continue;
3577
3578                                                 // extract tag, if not duplicate, add to parent item
3579                                                 if($xo->content) {
3580                                                         if(! (stristr($r[0]['tag'],trim($xo->content)))) {
3581                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d",
3582                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
3583                                                                         intval($r[0]['id'])
3584                                                                 );
3585                                                                 create_tags_from_item($r[0]['id']);
3586                                                         }
3587                                                 }
3588                                         }
3589                                 }
3590
3591                                 $posted_id = item_store($datarray);
3592
3593                                 // find out if our user is involved in this conversation and wants to be notified.
3594
3595                                 if(!x($datarray['type']) || $datarray['type'] != 'activity') {
3596
3597                                         $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
3598                                                 dbesc($top_uri),
3599                                                 intval($importer['importer_uid'])
3600                                         );
3601
3602                                         if(count($myconv)) {
3603                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
3604
3605                                                 // first make sure this isn't our own post coming back to us from a wall-to-wall event
3606                                                 if(! link_compare($datarray['author-link'],$importer_url)) {
3607
3608
3609                                                         foreach($myconv as $conv) {
3610
3611                                                                 // now if we find a match, it means we're in this conversation
3612
3613                                                                 if(! link_compare($conv['author-link'],$importer_url))
3614                                                                         continue;
3615
3616                                                                 require_once('include/enotify.php');
3617
3618                                                                 $conv_parent = $conv['parent'];
3619
3620                                                                 notification(array(
3621                                                                         'type'         => NOTIFY_COMMENT,
3622                                                                         'notify_flags' => $importer['notify-flags'],
3623                                                                         'language'     => $importer['language'],
3624                                                                         'to_name'      => $importer['username'],
3625                                                                         'to_email'     => $importer['email'],
3626                                                                         'uid'          => $importer['importer_uid'],
3627                                                                         'item'         => $datarray,
3628                                                                         'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3629                                                                         'source_name'  => stripslashes($datarray['author-name']),
3630                                                                         'source_link'  => $datarray['author-link'],
3631                                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3632                                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3633                                                                         'verb'         => ACTIVITY_POST,
3634                                                                         'otype'        => 'item',
3635                                                                         'parent'       => $conv_parent,
3636                                                                         'parent_uri'   => $parent_uri
3637
3638                                                                 ));
3639
3640                                                                 // only send one notification
3641                                                                 break;
3642                                                         }
3643                                                 }
3644                                         }
3645                                 }
3646                                 continue;
3647                         }
3648                 }
3649
3650                 else {
3651
3652                         // Head post of a conversation. Have we seen it? If not, import it.
3653
3654
3655                         $item_id  = $item->get_id();
3656                         $datarray = get_atom_elements($feed,$item);
3657
3658                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
3659                                 $ev = bbtoevent($datarray['body']);
3660                                 if(x($ev,'desc') && x($ev,'start')) {
3661                                         $ev['cid'] = $importer['id'];
3662                                         $ev['uid'] = $importer['uid'];
3663                                         $ev['uri'] = $item_id;
3664                                         $ev['edited'] = $datarray['edited'];
3665                                         $ev['private'] = $datarray['private'];
3666
3667                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3668                                                 dbesc($item_id),
3669                                                 intval($importer['uid'])
3670                                         );
3671                                         if(count($r))
3672                                                 $ev['id'] = $r[0]['id'];
3673                                         $xyz = event_store($ev);
3674                                         continue;
3675                                 }
3676                         }
3677
3678                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3679                                 dbesc($item_id),
3680                                 intval($importer['importer_uid'])
3681                         );
3682
3683                         // Update content if 'updated' changes
3684
3685                         if(count($r)) {
3686                                 if (edited_timestamp_is_newer($r[0], $datarray)) {
3687
3688                                         // do not accept (ignore) an earlier edit than one we currently have.
3689                                         if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3690                                                 continue;
3691
3692                                         $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3693                                                 dbesc($datarray['title']),
3694                                                 dbesc($datarray['body']),
3695                                                 dbesc($datarray['tag']),
3696                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3697                                                 dbesc(datetime_convert()),
3698                                                 dbesc($item_id),
3699                                                 intval($importer['importer_uid'])
3700                                         );
3701                                         create_tags_from_itemuri($item_id, $importer['importer_uid']);
3702                                         update_thread_uri($item_id, $importer['importer_uid']);
3703                                 }
3704
3705                                 // update last-child if it changes
3706
3707                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3708                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
3709                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3710                                                 intval($allow[0]['data']),
3711                                                 dbesc(datetime_convert()),
3712                                                 dbesc($item_id),
3713                                                 intval($importer['importer_uid'])
3714                                         );
3715                                 }
3716                                 continue;
3717                         }
3718
3719                         $datarray['parent-uri'] = $item_id;
3720                         $datarray['uid'] = $importer['importer_uid'];
3721                         $datarray['contact-id'] = $importer['id'];
3722
3723
3724                         if(! link_compare($datarray['owner-link'],$importer['url'])) {
3725                                 // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
3726                                 // but otherwise there's a possible data mixup on the sender's system.
3727                                 // the tgroup delivery code called from item_store will correct it if it's a forum,
3728                                 // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
3729                                 logger('local_delivery: Correcting item owner.', LOGGER_DEBUG);
3730                                 $datarray['owner-name']   = $importer['senderName'];
3731                                 $datarray['owner-link']   = $importer['url'];
3732                                 $datarray['owner-avatar'] = $importer['thumb'];
3733                         }
3734
3735                         if(($importer['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['importer_uid'],$datarray)))
3736                                 continue;
3737
3738                         // This is my contact on another system, but it's really me.
3739                         // Turn this into a wall post.
3740
3741                         if($importer['remote_self']) {
3742                                 if ($importer['remote_self'] == 2) {
3743                                         $r = q("SELECT `id`,`url`,`name`,`photo`,`network` FROM `contact` WHERE `uid` = %d AND `self`",
3744                                                 intval($importer['importer_uid']));
3745                                         if (count($r)) {
3746                                                 $datarray['contact-id'] = $r[0]["id"];
3747
3748                                                 $datarray['owner-name'] = $r[0]["name"];
3749                                                 $datarray['owner-link'] = $r[0]["url"];
3750                                                 $datarray['owner-avatar'] = $r[0]["photo"];
3751
3752                                                 $datarray['author-name']   = $datarray['owner-name'];
3753                                                 $datarray['author-link']   = $datarray['owner-link'];
3754                                                 $datarray['author-avatar'] = $datarray['owner-avatar'];
3755                                         }
3756                                 }
3757
3758                                 $notify = true;
3759                         } else
3760                                 $notify = false;
3761
3762                         $posted_id = item_store($datarray, false, $notify);
3763
3764                         if(stristr($datarray['verb'],ACTIVITY_POKE)) {
3765                                 $verb = urldecode(substr($datarray['verb'],strpos($datarray['verb'],'#')+1));
3766                                 if(! $verb)
3767                                         continue;
3768                                 $xo = parse_xml_string($datarray['object'],false);
3769
3770                                 if(($xo->type == ACTIVITY_OBJ_PERSON) && ($xo->id)) {
3771
3772                                         // somebody was poked/prodded. Was it me?
3773
3774                                         $links = parse_xml_string("<links>".unxmlify($xo->link)."</links>",false);
3775
3776                                 foreach($links->link as $l) {
3777                                 $atts = $l->attributes();
3778                                 switch($atts['rel']) {
3779                                         case "alternate":
3780                                                                 $Blink = $atts['href'];
3781                                                                 break;
3782                                                         default:
3783                                                                 break;
3784                                     }
3785                                 }
3786                                         if($Blink && link_compare($Blink,$a->get_baseurl() . '/profile/' . $importer['nickname'])) {
3787
3788                                                 // send a notification
3789                                                 require_once('include/enotify.php');
3790
3791                                                 notification(array(
3792                                                         'type'         => NOTIFY_POKE,
3793                                                         'notify_flags' => $importer['notify-flags'],
3794                                                         'language'     => $importer['language'],
3795                                                         'to_name'      => $importer['username'],
3796                                                         'to_email'     => $importer['email'],
3797                                                         'uid'          => $importer['importer_uid'],
3798                                                         'item'         => $datarray,
3799                                                         'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3800                                                         'source_name'  => stripslashes($datarray['author-name']),
3801                                                         'source_link'  => $datarray['author-link'],
3802                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3803                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3804                                                         'verb'         => $datarray['verb'],
3805                                                         'otype'        => 'person',
3806                                                         'activity'     => $verb,
3807
3808                                                 ));
3809                                         }
3810                                 }
3811                         }
3812
3813                         continue;
3814                 }
3815         }
3816
3817         return 0;
3818         // NOTREACHED
3819
3820 }
3821
3822
3823 function new_follower($importer,$contact,$datarray,$item,$sharing = false) {
3824         $url = notags(trim($datarray['author-link']));
3825         $name = notags(trim($datarray['author-name']));
3826         $photo = notags(trim($datarray['author-avatar']));
3827
3828         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
3829         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
3830                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
3831
3832         if(is_array($contact)) {
3833                 if(($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
3834                         || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
3835                         $r = q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
3836                                 intval(CONTACT_IS_FRIEND),
3837                                 intval($contact['id']),
3838                                 intval($importer['uid'])
3839                         );
3840                 }
3841                 // send email notification to owner?
3842         }
3843         else {
3844
3845                 // create contact record
3846
3847                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
3848                         `blocked`, `readonly`, `pending`, `writable` )
3849                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
3850                         intval($importer['uid']),
3851                         dbesc(datetime_convert()),
3852                         dbesc($url),
3853                         dbesc(normalise_link($url)),
3854                         dbesc($name),
3855                         dbesc($nick),
3856                         dbesc($photo),
3857                         dbesc(($sharing) ? NETWORK_ZOT : NETWORK_OSTATUS),
3858                         intval(($sharing) ? CONTACT_IS_SHARING : CONTACT_IS_FOLLOWER)
3859                 );
3860                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
3861                                 intval($importer['uid']),
3862                                 dbesc($url)
3863                 );
3864                 if(count($r))
3865                                 $contact_record = $r[0];
3866
3867                 // create notification
3868                 $hash = random_string();
3869
3870                 if(is_array($contact_record)) {
3871                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
3872                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
3873                                 intval($importer['uid']),
3874                                 intval($contact_record['id']),
3875                                 dbesc($hash),
3876                                 dbesc(datetime_convert())
3877                         );
3878                 }
3879
3880                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
3881                         intval($importer['uid'])
3882                 );
3883                 $a = get_app();
3884                 if(count($r)) {
3885
3886                         if(intval($r[0]['def_gid'])) {
3887                                 require_once('include/group.php');
3888                                 group_add_member($r[0]['uid'],'',$contact_record['id'],$r[0]['def_gid']);
3889                         }
3890
3891                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) &&
3892                                 (($r[0]['page-flags'] == PAGE_NORMAL) OR ($r[0]['page-flags'] == PAGE_SOAPBOX))) {
3893
3894
3895
3896                                 notification(array(
3897                                         'type'         => NOTIFY_INTRO,
3898                                         'notify_flags' => $r[0]['notify-flags'],
3899                                         'language'     => $r[0]['language'],
3900                                         'to_name'      => $r[0]['username'],
3901                                         'to_email'     => $r[0]['email'],
3902                                         'uid'          => $r[0]['uid'],
3903                                         'link'             => $a->get_baseurl() . '/notifications/intro',
3904                                         'source_name'  => ((strlen(stripslashes($contact_record['name']))) ? stripslashes($contact_record['name']) : t('[Name Withheld]')),
3905                                         'source_link'  => $contact_record['url'],
3906                                         'source_photo' => $contact_record['photo'],
3907                                         'verb'         => ($sharing ? ACTIVITY_FRIEND : ACTIVITY_FOLLOW),
3908                                         'otype'        => 'intro'
3909                                 ));
3910
3911
3912                         }
3913                 }
3914         }
3915 }
3916
3917 function lose_follower($importer,$contact,$datarray,$item) {
3918
3919         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
3920                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d",
3921                         intval(CONTACT_IS_SHARING),
3922                         intval($contact['id'])
3923                 );
3924         }
3925         else {
3926                 contact_remove($contact['id']);
3927         }
3928 }
3929
3930 function lose_sharer($importer,$contact,$datarray,$item) {
3931
3932         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
3933                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d",
3934                         intval(CONTACT_IS_FOLLOWER),
3935                         intval($contact['id'])
3936                 );
3937         }
3938         else {
3939                 contact_remove($contact['id']);
3940         }
3941 }
3942
3943
3944 function subscribe_to_hub($url,$importer,$contact,$hubmode = 'subscribe') {
3945
3946         $a = get_app();
3947
3948         if(is_array($importer)) {
3949                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
3950                         intval($importer['uid'])
3951                 );
3952         }
3953
3954         // Diaspora has different message-ids in feeds than they do
3955         // through the direct Diaspora protocol. If we try and use
3956         // the feed, we'll get duplicates. So don't.
3957
3958         if((! count($r)) || $contact['network'] === NETWORK_DIASPORA)
3959                 return;
3960
3961         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
3962
3963         // Use a single verify token, even if multiple hubs
3964
3965         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
3966
3967         $params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
3968
3969         logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
3970
3971         if(! strlen($contact['hub-verify'])) {
3972                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d",
3973                         dbesc($verify_token),
3974                         intval($contact['id'])
3975                 );
3976         }
3977
3978         post_url($url,$params);
3979
3980         logger('subscribe_to_hub: returns: ' . $a->get_curl_code(), LOGGER_DEBUG);
3981
3982         return;
3983
3984 }
3985
3986
3987 function atom_author($tag,$name,$uri,$h,$w,$photo) {
3988         $o = '';
3989         if(! $tag)
3990                 return $o;
3991         $name = xmlify($name);
3992         $uri = xmlify($uri);
3993         $h = intval($h);
3994         $w = intval($w);
3995         $photo = xmlify($photo);
3996
3997
3998         $o .= "<$tag>\r\n";
3999         $o .= "<name>$name</name>\r\n";
4000         $o .= "<uri>$uri</uri>\r\n";
4001         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
4002         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
4003
4004         call_hooks('atom_author', $o);
4005
4006         $o .= "</$tag>\r\n";
4007         return $o;
4008 }
4009
4010 function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) {
4011
4012         $a = get_app();
4013
4014         if(! $item['parent'])
4015                 return;
4016
4017         if($item['deleted'])
4018                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
4019
4020
4021         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
4022                 $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
4023         else
4024                 $body = $item['body'];
4025
4026         $o = "\r\n\r\n<entry>\r\n";
4027
4028         if(is_array($author))
4029                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
4030         else
4031                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
4032         if(strlen($item['owner-name']))
4033                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
4034
4035         if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
4036                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
4037                 $o .= '<thr:in-reply-to ref="' . xmlify($parent_item) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['parent']) . '" />' . "\r\n";
4038         }
4039
4040         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
4041         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
4042         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
4043         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
4044         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
4045         $o .= '<content type="' . $type . '" >' . xmlify((($type === 'html') ? bbcode($body) : $body)) . '</content>' . "\r\n";
4046         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
4047         if($comment)
4048                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
4049
4050         if($item['location']) {
4051                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
4052                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
4053         }
4054
4055         if($item['coord'])
4056                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
4057
4058         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
4059                 $o .= '<dfrn:private>' . (($item['private']) ? $item['private'] : 1) . '</dfrn:private>' . "\r\n";
4060
4061         if($item['extid'])
4062                 $o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
4063         if($item['bookmark'])
4064                 $o .= '<dfrn:bookmark>true</dfrn:bookmark>' . "\r\n";
4065
4066         if($item['app'])
4067                 $o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
4068
4069         if($item['guid'])
4070                 $o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
4071
4072         if($item['signed_text']) {
4073                 $sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
4074                 $o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
4075         }
4076
4077         $verb = construct_verb($item);
4078         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
4079         $actobj = construct_activity_object($item);
4080         if(strlen($actobj))
4081                 $o .= $actobj;
4082         $actarg = construct_activity_target($item);
4083         if(strlen($actarg))
4084                 $o .= $actarg;
4085
4086         $tags = item_getfeedtags($item);
4087         if(count($tags)) {
4088                 foreach($tags as $t) {
4089                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
4090                 }
4091         }
4092
4093         $o .= item_getfeedattach($item);
4094
4095         $mentioned = get_mentions($item);
4096         if($mentioned)
4097                 $o .= $mentioned;
4098
4099         call_hooks('atom_entry', $o);
4100
4101         $o .= '</entry>' . "\r\n";
4102
4103         return $o;
4104 }
4105
4106 function fix_private_photos($s, $uid, $item = null, $cid = 0) {
4107
4108         if(get_config('system','disable_embedded'))
4109                 return $s;
4110
4111         $a = get_app();
4112
4113         logger('fix_private_photos: check for photos', LOGGER_DEBUG);
4114         $site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
4115
4116         $orig_body = $s;
4117         $new_body = '';
4118
4119         $img_start = strpos($orig_body, '[img');
4120         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
4121         $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
4122         while( ($img_st_close !== false) && ($img_len !== false) ) {
4123
4124                 $img_st_close++; // make it point to AFTER the closing bracket
4125                 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
4126
4127                 logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
4128
4129
4130                 if(stristr($image , $site . '/photo/')) {
4131                         // Only embed locally hosted photos
4132                         $replace = false;
4133                         $i = basename($image);
4134                         $i = str_replace(array('.jpg','.png','.gif'),array('','',''),$i);
4135                         $x = strpos($i,'-');
4136
4137                         if($x) {
4138                                 $res = substr($i,$x+1);
4139                                 $i = substr($i,0,$x);
4140                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
4141                                         dbesc($i),
4142                                         intval($res),
4143                                         intval($uid)
4144                                 );
4145                                 if($r) {
4146
4147                                         // Check to see if we should replace this photo link with an embedded image
4148                                         // 1. No need to do so if the photo is public
4149                                         // 2. If there's a contact-id provided, see if they're in the access list
4150                                         //    for the photo. If so, embed it.
4151                                         // 3. Otherwise, if we have an item, see if the item permissions match the photo
4152                                         //    permissions, regardless of order but first check to see if they're an exact
4153                                         //    match to save some processing overhead.
4154
4155                                         if(has_permissions($r[0])) {
4156                                                 if($cid) {
4157                                                         $recips = enumerate_permissions($r[0]);
4158                                                         if(in_array($cid, $recips)) {
4159                                                                 $replace = true;
4160                                                         }
4161                                                 }
4162                                                 elseif($item) {
4163                                                         if(compare_permissions($item,$r[0]))
4164                                                                 $replace = true;
4165                                                 }
4166                                         }
4167                                         if($replace) {
4168                                                 $data = $r[0]['data'];
4169                                                 $type = $r[0]['type'];
4170
4171                                                 // If a custom width and height were specified, apply before embedding
4172                                                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
4173                                                         logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
4174
4175                                                         $width = intval($match[1]);
4176                                                         $height = intval($match[2]);
4177
4178                                                         $ph = new Photo($data, $type);
4179                                                         if($ph->is_valid()) {
4180                                                                 $ph->scaleImage(max($width, $height));
4181                                                                 $data = $ph->imageString();
4182                                                                 $type = $ph->getType();
4183                                                         }
4184                                                 }
4185
4186                                                 logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
4187                                                 $image = 'data:' . $type . ';base64,' . base64_encode($data);
4188                                                 logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
4189                                         }
4190                                 }
4191                         }
4192                 }
4193
4194                 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
4195                 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
4196                 if($orig_body === false)
4197                         $orig_body = '';
4198
4199                 $img_start = strpos($orig_body, '[img');
4200                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
4201                 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
4202         }
4203
4204         $new_body = $new_body . $orig_body;
4205
4206         return($new_body);
4207 }
4208
4209
4210 function has_permissions($obj) {
4211         if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != ''))
4212                 return true;
4213         return false;
4214 }
4215
4216 function compare_permissions($obj1,$obj2) {
4217         // first part is easy. Check that these are exactly the same.
4218         if(($obj1['allow_cid'] == $obj2['allow_cid'])
4219                 && ($obj1['allow_gid'] == $obj2['allow_gid'])
4220                 && ($obj1['deny_cid'] == $obj2['deny_cid'])
4221                 && ($obj1['deny_gid'] == $obj2['deny_gid']))
4222                 return true;
4223
4224         // This is harder. Parse all the permissions and compare the resulting set.
4225
4226         $recipients1 = enumerate_permissions($obj1);
4227         $recipients2 = enumerate_permissions($obj2);
4228         sort($recipients1);
4229         sort($recipients2);
4230         if($recipients1 == $recipients2)
4231                 return true;
4232         return false;
4233 }
4234
4235 // returns an array of contact-ids that are allowed to see this object
4236
4237 function enumerate_permissions($obj) {
4238         require_once('include/group.php');
4239         $allow_people = expand_acl($obj['allow_cid']);
4240         $allow_groups = expand_groups(expand_acl($obj['allow_gid']));
4241         $deny_people  = expand_acl($obj['deny_cid']);
4242         $deny_groups  = expand_groups(expand_acl($obj['deny_gid']));
4243         $recipients   = array_unique(array_merge($allow_people,$allow_groups));
4244         $deny         = array_unique(array_merge($deny_people,$deny_groups));
4245         $recipients   = array_diff($recipients,$deny);
4246         return $recipients;
4247 }
4248
4249 function item_getfeedtags($item) {
4250         $ret = array();
4251         $matches = false;
4252         $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
4253         if($cnt) {
4254                 for($x = 0; $x < $cnt; $x ++) {
4255                         if($matches[1][$x])
4256                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
4257                 }
4258         }
4259         $matches = false;
4260         $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
4261         if($cnt) {
4262                 for($x = 0; $x < $cnt; $x ++) {
4263                         if($matches[1][$x])
4264                                 $ret[] = array('@',$matches[1][$x], $matches[2][$x]);
4265                 }
4266         }
4267         return $ret;
4268 }
4269
4270 function item_getfeedattach($item) {
4271         $ret = '';
4272         $arr = explode('[/attach],',$item['attach']);
4273         if(count($arr)) {
4274                 foreach($arr as $r) {
4275                         $matches = false;
4276                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
4277                         if($cnt) {
4278                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
4279                                 if(intval($matches[2]))
4280                                         $ret .= 'length="' . intval($matches[2]) . '" ';
4281                                 if($matches[4] !== ' ')
4282                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
4283                                 $ret .= ' />' . "\r\n";
4284                         }
4285                 }
4286         }
4287         return $ret;
4288 }
4289
4290
4291
4292 function item_expire($uid, $days, $network = "", $force = false) {
4293
4294         if((! $uid) || ($days < 1))
4295                 return;
4296
4297         // $expire_network_only = save your own wall posts
4298         // and just expire conversations started by others
4299
4300         $expire_network_only = get_pconfig($uid,'expire','network_only');
4301         $sql_extra = ((intval($expire_network_only)) ? " AND wall = 0 " : "");
4302
4303         if ($network != "") {
4304                 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
4305                 // There is an index "uid_network_received" but not "uid_network_created"
4306                 // This avoids the creation of another index just for one purpose.
4307                 // And it doesn't really matter wether to look at "received" or "created"
4308                 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
4309         } else
4310                 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
4311
4312         $r = q("SELECT * FROM `item`
4313                 WHERE `uid` = %d $range
4314                 AND `id` = `parent`
4315                 $sql_extra
4316                 AND `deleted` = 0",
4317                 intval($uid),
4318                 intval($days)
4319         );
4320
4321         if(! count($r))
4322                 return;
4323
4324         $expire_items = get_pconfig($uid, 'expire','items');
4325         $expire_items = (($expire_items===false)?1:intval($expire_items)); // default if not set: 1
4326
4327         // Forcing expiring of items - but not notes and marked items
4328         if ($force)
4329                 $expire_items = true;
4330
4331         $expire_notes = get_pconfig($uid, 'expire','notes');
4332         $expire_notes = (($expire_notes===false)?1:intval($expire_notes)); // default if not set: 1
4333
4334         $expire_starred = get_pconfig($uid, 'expire','starred');
4335         $expire_starred = (($expire_starred===false)?1:intval($expire_starred)); // default if not set: 1
4336
4337         $expire_photos = get_pconfig($uid, 'expire','photos');
4338         $expire_photos = (($expire_photos===false)?0:intval($expire_photos)); // default if not set: 0
4339
4340         logger('expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
4341
4342         foreach($r as $item) {
4343
4344                 // don't expire filed items
4345
4346                 if(strpos($item['file'],'[') !== false)
4347                         continue;
4348
4349                 // Only expire posts, not photos and photo comments
4350
4351                 if($expire_photos==0 && strlen($item['resource-id']))
4352                         continue;
4353                 if($expire_starred==0 && intval($item['starred']))
4354                         continue;
4355                 if($expire_notes==0 && $item['type']=='note')
4356                         continue;
4357                 if($expire_items==0 && $item['type']!='note')
4358                         continue;
4359
4360                 drop_item($item['id'],false);
4361         }
4362
4363         proc_run('php',"include/notifier.php","expire","$uid");
4364
4365 }
4366
4367
4368 function drop_items($items) {
4369         $uid = 0;
4370
4371         if(! local_user() && ! remote_user())
4372                 return;
4373
4374         if(count($items)) {
4375                 foreach($items as $item) {
4376                         $owner = drop_item($item,false);
4377                         if($owner && ! $uid)
4378                                 $uid = $owner;
4379                 }
4380         }
4381
4382         // multiple threads may have been deleted, send an expire notification
4383
4384         if($uid)
4385                 proc_run('php',"include/notifier.php","expire","$uid");
4386 }
4387
4388
4389 function drop_item($id,$interactive = true) {
4390
4391         $a = get_app();
4392
4393         // locate item to be deleted
4394
4395         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
4396                 intval($id)
4397         );
4398
4399         if(! count($r)) {
4400                 if(! $interactive)
4401                         return 0;
4402                 notice( t('Item not found.') . EOL);
4403                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4404         }
4405
4406         $item = $r[0];
4407
4408         $owner = $item['uid'];
4409
4410         $cid = 0;
4411
4412         // check if logged in user is either the author or owner of this item
4413
4414         if(is_array($_SESSION['remote'])) {
4415                 foreach($_SESSION['remote'] as $visitor) {
4416                         if($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
4417                                 $cid = $visitor['cid'];
4418                                 break;
4419                         }
4420                 }
4421         }
4422
4423
4424         if((local_user() == $item['uid']) || ($cid) || (! $interactive)) {
4425
4426                 // Check if we should do HTML-based delete confirmation
4427                 if($_REQUEST['confirm']) {
4428                         // <form> can't take arguments in its "action" parameter
4429                         // so add any arguments as hidden inputs
4430                         $query = explode_querystring($a->query_string);
4431                         $inputs = array();
4432                         foreach($query['args'] as $arg) {
4433                                 if(strpos($arg, 'confirm=') === false) {
4434                                         $arg_parts = explode('=', $arg);
4435                                         $inputs[] = array('name' => $arg_parts[0], 'value' => $arg_parts[1]);
4436                                 }
4437                         }
4438
4439                         return replace_macros(get_markup_template('confirm.tpl'), array(
4440                                 '$method' => 'get',
4441                                 '$message' => t('Do you really want to delete this item?'),
4442                                 '$extra_inputs' => $inputs,
4443                                 '$confirm' => t('Yes'),
4444                                 '$confirm_url' => $query['base'],
4445                                 '$confirm_name' => 'confirmed',
4446                                 '$cancel' => t('Cancel'),
4447                         ));
4448                 }
4449                 // Now check how the user responded to the confirmation query
4450                 if($_REQUEST['canceled']) {
4451                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4452                 }
4453
4454                 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
4455                 // delete the item
4456
4457                 $r = q("UPDATE `item` SET `deleted` = 1, `title` = '', `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d",
4458                         dbesc(datetime_convert()),
4459                         dbesc(datetime_convert()),
4460                         intval($item['id'])
4461                 );
4462                 create_tags_from_item($item['id']);
4463                 create_files_from_item($item['id']);
4464                 delete_thread($item['id']);
4465
4466                 // clean up categories and tags so they don't end up as orphans
4467
4468                 $matches = false;
4469                 $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
4470                 if($cnt) {
4471                         foreach($matches as $mtch) {
4472                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
4473                         }
4474                 }
4475
4476                 $matches = false;
4477
4478                 $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
4479                 if($cnt) {
4480                         foreach($matches as $mtch) {
4481                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
4482                         }
4483                 }
4484
4485                 // If item is a link to a photo resource, nuke all the associated photos
4486                 // (visitors will not have photo resources)
4487                 // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
4488                 // generate a resource-id and therefore aren't intimately linked to the item.
4489
4490                 if(strlen($item['resource-id'])) {
4491                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
4492                                 dbesc($item['resource-id']),
4493                                 intval($item['uid'])
4494                         );
4495                         // ignore the result
4496                 }
4497
4498                 // If item is a link to an event, nuke the event record.
4499
4500                 if(intval($item['event-id'])) {
4501                         q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d",
4502                                 intval($item['event-id']),
4503                                 intval($item['uid'])
4504                         );
4505                         // ignore the result
4506                 }
4507
4508                 // clean up item_id and sign meta-data tables
4509
4510                 /*
4511                 // Old code - caused very long queries and warning entries in the mysql logfiles:
4512
4513                 $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
4514                         intval($item['id']),
4515                         intval($item['uid'])
4516                 );
4517
4518                 $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
4519                         intval($item['id']),
4520                         intval($item['uid'])
4521                 );
4522                 */
4523
4524                 // The new code splits the queries since the mysql optimizer really has bad problems with subqueries
4525
4526                 // Creating list of parents
4527                 $r = q("select id from item where parent = %d and uid = %d",
4528                         intval($item['id']),
4529                         intval($item['uid'])
4530                 );
4531
4532                 $parentid = "";
4533
4534                 foreach ($r AS $row) {
4535                         if ($parentid != "")
4536                                 $parentid .= ", ";
4537
4538                         $parentid .= $row["id"];
4539                 }
4540
4541                 // Now delete them
4542                 if ($parentid != "") {
4543                         $r = q("DELETE FROM item_id where iid in (%s)", dbesc($parentid));
4544
4545                         $r = q("DELETE FROM sign where iid in (%s)", dbesc($parentid));
4546                 }
4547
4548                 // If it's the parent of a comment thread, kill all the kids
4549
4550                 if($item['uri'] == $item['parent-uri']) {
4551                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
4552                                 WHERE `parent-uri` = '%s' AND `uid` = %d ",
4553                                 dbesc(datetime_convert()),
4554                                 dbesc(datetime_convert()),
4555                                 dbesc($item['parent-uri']),
4556                                 intval($item['uid'])
4557                         );
4558                         create_tags_from_item($item['parent-uri'], $item['uid']);
4559                         create_files_from_item($item['parent-uri'], $item['uid']);
4560                         delete_thread_uri($item['parent-uri'], $item['uid']);
4561                         // ignore the result
4562                 }
4563                 else {
4564                         // ensure that last-child is set in case the comment that had it just got wiped.
4565                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
4566                                 dbesc(datetime_convert()),
4567                                 dbesc($item['parent-uri']),
4568                                 intval($item['uid'])
4569                         );
4570                         // who is the last child now?
4571                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
4572                                 dbesc($item['parent-uri']),
4573                                 intval($item['uid'])
4574                         );
4575                         if(count($r)) {
4576                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
4577                                         intval($r[0]['id'])
4578                                 );
4579                         }
4580
4581                         // Add a relayable_retraction signature for Diaspora.
4582                         store_diaspora_retract_sig($item, $a->user, $a->get_baseurl());
4583                 }
4584                 $drop_id = intval($item['id']);
4585
4586                 // send the notification upstream/downstream as the case may be
4587
4588                 proc_run('php',"include/notifier.php","drop","$drop_id");
4589
4590                 if(! $interactive)
4591                         return $owner;
4592                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4593                 //NOTREACHED
4594         }
4595         else {
4596                 if(! $interactive)
4597                         return 0;
4598                 notice( t('Permission denied.') . EOL);
4599                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4600                 //NOTREACHED
4601         }
4602
4603 }
4604
4605
4606 function first_post_date($uid,$wall = false) {
4607         $r = q("select id, created from item
4608                 where uid = %d and wall = %d and deleted = 0 and visible = 1 AND moderated = 0
4609                 and id = parent
4610                 order by created asc limit 1",
4611                 intval($uid),
4612                 intval($wall ? 1 : 0)
4613         );
4614         if(count($r)) {
4615 //              logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
4616                 return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10);
4617         }
4618         return false;
4619 }
4620
4621 function posted_dates($uid,$wall) {
4622         $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
4623
4624         $dthen = first_post_date($uid,$wall);
4625         if(! $dthen)
4626                 return array();
4627
4628         // Set the start and end date to the beginning of the month
4629         $dnow = substr($dnow,0,8).'01';
4630         $dthen = substr($dthen,0,8).'01';
4631
4632         $ret = array();
4633         // Starting with the current month, get the first and last days of every
4634         // month down to and including the month of the first post
4635         while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
4636                 $dstart = substr($dnow,0,8) . '01';
4637                 $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
4638                 $start_month = datetime_convert('','',$dstart,'Y-m-d');
4639                 $end_month = datetime_convert('','',$dend,'Y-m-d');
4640                 $str = day_translate(datetime_convert('','',$dnow,'F Y'));
4641                 $ret[] = array($str,$end_month,$start_month);
4642                 $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
4643         }
4644         return $ret;
4645 }
4646
4647
4648 function posted_date_widget($url,$uid,$wall) {
4649         $o = '';
4650
4651         if(! feature_enabled($uid,'archives'))
4652                 return $o;
4653
4654         // For former Facebook folks that left because of "timeline"
4655
4656 /*      if($wall && intval(get_pconfig($uid,'system','no_wall_archive_widget')))
4657                 return $o;*/
4658
4659         $ret = posted_dates($uid,$wall);
4660         if(! count($ret))
4661                 return $o;
4662
4663         $o = replace_macros(get_markup_template('posted_date_widget.tpl'),array(
4664                 '$title' => t('Archives'),
4665                 '$size' => ((count($ret) > 6) ? 6 : count($ret)),
4666                 '$url' => $url,
4667                 '$dates' => $ret
4668         ));
4669         return $o;
4670 }
4671
4672 function store_diaspora_retract_sig($item, $user, $baseurl) {
4673         // Note that we can't add a target_author_signature
4674         // if the comment was deleted by a remote user. That should be ok, because if a remote user is deleting
4675         // the comment, that means we're the home of the post, and Diaspora will only
4676         // check the parent_author_signature of retractions that it doesn't have to relay further
4677         //
4678         // I don't think this function gets called for an "unlike," but I'll check anyway
4679
4680         $enabled = intval(get_config('system','diaspora_enabled'));
4681         if(! $enabled) {
4682                 logger('drop_item: diaspora support disabled, not storing retraction signature', LOGGER_DEBUG);
4683                 return;
4684         }
4685
4686         logger('drop_item: storing diaspora retraction signature');
4687
4688         $signed_text = $item['guid'] . ';' . ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
4689
4690         if(local_user() == $item['uid']) {
4691
4692                 $handle = $user['nickname'] . '@' . substr($baseurl, strpos($baseurl,'://') + 3);
4693                 $authorsig = base64_encode(rsa_sign($signed_text,$user['prvkey'],'sha256'));
4694         }
4695         else {
4696                 $r = q("SELECT `nick`, `url` FROM `contact` WHERE `id` = '%d' LIMIT 1",
4697                         $item['contact-id'] // If this function gets called, drop_item() has already checked remote_user() == $item['contact-id']
4698                 );
4699                 if(count($r)) {
4700                         // The below handle only works for NETWORK_DFRN. I think that's ok, because this function
4701                         // only handles DFRN deletes
4702                         $handle_baseurl_start = strpos($r['url'],'://') + 3;
4703                         $handle_baseurl_length = strpos($r['url'],'/profile') - $handle_baseurl_start;
4704                         $handle = $r['nick'] . '@' . substr($r['url'], $handle_baseurl_start, $handle_baseurl_length);
4705                         $authorsig = '';
4706                 }
4707         }
4708
4709         if(isset($handle))
4710                 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
4711                         intval($item['id']),
4712                         dbesc($signed_text),
4713                         dbesc($authorsig),
4714                         dbesc($handle)
4715                 );
4716
4717         return;
4718 }