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                                                 $notify = true;
2620                                         }
2621
2622                                         if ($contact['network'] === NETWORK_FEED)
2623                                                 $datarray['private'] = 0;
2624                                         elseif ($notify) {
2625                                                 // At first store the original post
2626                                                 $r = item_store($datarray, false, false);
2627
2628                                                 // Then create a new guid and uri and post it again as a forwarded post
2629                                                 $datarray["guid"] = get_guid(32);
2630                                                 $datarray["uri"] = item_new_uri($a->get_hostname(),$importer['uid']);
2631                                                 $r = q("SELECT `id`,`url`,`name`,`photo`,`network` FROM `contact` WHERE `uid` = %d AND `self`", intval($importer['uid']));
2632                                                 if (count($r)) {
2633                                                         $datarray['contact-id'] = $r[0]["id"];
2634
2635                                                         $datarray['owner-name'] = $r[0]["name"];
2636                                                         $datarray['owner-link'] = $r[0]["url"];
2637                                                         $datarray['owner-avatar'] = $r[0]["photo"];
2638                                                 }
2639                                         }
2640
2641                                         if (!isset($datarray["app"]) OR ($datarray["app"] == ""))
2642                                                 $datarray["app"] = network_to_name($contact['network']);
2643                                 } else
2644                                         $notify = false;
2645
2646                                 $r = item_store($datarray, false, $notify);
2647                                 continue;
2648
2649                         }
2650                 }
2651         }
2652 }
2653
2654 function local_delivery($importer,$data) {
2655         $a = get_app();
2656
2657     logger(__function__, LOGGER_TRACE);
2658
2659         if($importer['readonly']) {
2660                 // We aren't receiving stuff from this person. But we will quietly ignore them
2661                 // rather than a blatant "go away" message.
2662                 logger('local_delivery: ignoring');
2663                 return 0;
2664                 //NOTREACHED
2665         }
2666
2667         // Consume notification feed. This may differ from consuming a public feed in several ways
2668         // - might contain email or friend suggestions
2669         // - might contain remote followup to our message
2670         //              - in which case we need to accept it and then notify other conversants
2671         // - we may need to send various email notifications
2672
2673         $feed = new SimplePie();
2674         $feed->set_raw_data($data);
2675         $feed->enable_order_by_date(false);
2676         $feed->init();
2677
2678
2679         if($feed->error())
2680                 logger('local_delivery: Error parsing XML: ' . $feed->error());
2681
2682
2683         // Check at the feed level for updated contact name and/or photo
2684
2685         $name_updated  = '';
2686         $new_name = '';
2687         $photo_timestamp = '';
2688         $photo_url = '';
2689
2690
2691         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
2692
2693 // Fallback should not be needed here. If it isn't DFRN it won't have DFRN updated tags
2694 //      if(! $rawtags)
2695 //              $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
2696
2697         if($rawtags) {
2698                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2699                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2700                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2701                         $new_name = $elems['name'][0]['data'];
2702                 }
2703                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2704                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2705                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2706                 }
2707         }
2708
2709         if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $importer['avatar-date'])) {
2710                 logger('local_delivery: Updating photo for ' . $importer['name']);
2711                 require_once("include/Photo.php");
2712                 $photo_failure = false;
2713                 $have_photo = false;
2714
2715                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2716                         intval($importer['id']),
2717                         intval($importer['importer_uid'])
2718                 );
2719                 if(count($r)) {
2720                         $resource_id = $r[0]['resource-id'];
2721                         $have_photo = true;
2722                 }
2723                 else {
2724                         $resource_id = photo_new_resource();
2725                 }
2726
2727                 $img_str = fetch_url($photo_url,true);
2728                 // guess mimetype from headers or filename
2729                 $type = guess_image_type($photo_url,true);
2730
2731
2732                 $img = new Photo($img_str, $type);
2733                 if($img->is_valid()) {
2734                         if($have_photo) {
2735                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2736                                         dbesc($resource_id),
2737                                         intval($importer['id']),
2738                                         intval($importer['importer_uid'])
2739                                 );
2740                         }
2741
2742                         $img->scaleImageSquare(175);
2743
2744                         $hash = $resource_id;
2745                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2746
2747                         $img->scaleImage(80);
2748                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2749
2750                         $img->scaleImage(48);
2751                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2752
2753                         $a = get_app();
2754
2755                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2756                                 WHERE `uid` = %d AND `id` = %d",
2757                                 dbesc(datetime_convert()),
2758                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2759                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2760                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2761                                 intval($importer['importer_uid']),
2762                                 intval($importer['id'])
2763                         );
2764                 }
2765         }
2766
2767         if(($name_updated) && (strlen($new_name)) && ($name_updated > $importer['name-date'])) {
2768                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2769                         intval($importer['importer_uid']),
2770                         intval($importer['id'])
2771                 );
2772
2773                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d",
2774                         dbesc(notags(trim($new_name))),
2775                         dbesc(datetime_convert()),
2776                         intval($importer['importer_uid']),
2777                         intval($importer['id'])
2778                 );
2779
2780                 // do our best to update the name on content items
2781
2782                 if(count($r)) {
2783                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2784                                 dbesc(notags(trim($new_name))),
2785                                 dbesc($r[0]['name']),
2786                                 dbesc($r[0]['url']),
2787                                 intval($importer['importer_uid'])
2788                         );
2789                 }
2790         }
2791
2792
2793
2794         // Currently unsupported - needs a lot of work
2795         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
2796         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
2797                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
2798                 $newloc = array();
2799                 $newloc['uid'] = $importer['importer_uid'];
2800                 $newloc['cid'] = $importer['id'];
2801                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
2802                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
2803                 $newloc['thumb'] = notags(unxmlify($base['thumb'][0]['data']));
2804                 $newloc['micro'] = notags(unxmlify($base['micro'][0]['data']));
2805                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
2806                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
2807                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
2808                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
2809                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
2810                 $newloc['sitepubkey'] = notags(unxmlify($base['sitepubkey'][0]['data']));
2811                 /** relocated user must have original key pair */
2812                 /*$newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
2813                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));*/
2814
2815                 logger("items:relocate contact ".print_r($newloc, true).print_r($importer, true), LOGGER_DEBUG);
2816
2817                 // update contact
2818                 $r = q("SELECT photo, url FROM contact WHERE id=%d AND uid=%d;",
2819                         intval($importer['id']),
2820                         intval($importer['importer_uid']));
2821                 if ($r === false)
2822                         return 1;
2823                 $old = $r[0];
2824
2825                 $x = q("UPDATE contact SET
2826                                         name = '%s',
2827                                         photo = '%s',
2828                                         thumb = '%s',
2829                                         micro = '%s',
2830                                         url = '%s',
2831                                         request = '%s',
2832                                         confirm = '%s',
2833                                         notify = '%s',
2834                                         poll = '%s',
2835                                         `site-pubkey` = '%s'
2836                         WHERE id=%d AND uid=%d;",
2837                                         dbesc($newloc['name']),
2838                                         dbesc($newloc['photo']),
2839                                         dbesc($newloc['thumb']),
2840                                         dbesc($newloc['micro']),
2841                                         dbesc($newloc['url']),
2842                                         dbesc($newloc['request']),
2843                                         dbesc($newloc['confirm']),
2844                                         dbesc($newloc['notify']),
2845                                         dbesc($newloc['poll']),
2846                                         dbesc($newloc['sitepubkey']),
2847                                         intval($importer['id']),
2848                                         intval($importer['importer_uid']));
2849
2850                 if ($x === false)
2851                         return 1;
2852                 // update items
2853                 $fields = array(
2854                         'owner-link' => array($old['url'], $newloc['url']),
2855                         'author-link' => array($old['url'], $newloc['url']),
2856                         'owner-avatar' => array($old['photo'], $newloc['photo']),
2857                         'author-avatar' => array($old['photo'], $newloc['photo']),
2858                         );
2859                 foreach ($fields as $n=>$f){
2860                         $x = q("UPDATE `item` SET `%s`='%s' WHERE `%s`='%s' AND uid=%d",
2861                                         $n, dbesc($f[1]),
2862                                         $n, dbesc($f[0]),
2863                                         intval($importer['importer_uid']));
2864                                 if ($x === false)
2865                                         return 1;
2866                         }
2867
2868                 // TODO
2869                 // merge with current record, current contents have priority
2870                 // update record, set url-updated
2871                 // update profile photos
2872                 // schedule a scan?
2873                 return 0;
2874         }
2875
2876
2877         // handle friend suggestion notification
2878
2879         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
2880         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
2881                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
2882                 $fsugg = array();
2883                 $fsugg['uid'] = $importer['importer_uid'];
2884                 $fsugg['cid'] = $importer['id'];
2885                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
2886                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
2887                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
2888                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
2889                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
2890
2891                 // Does our member already have a friend matching this description?
2892
2893                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
2894                         dbesc($fsugg['name']),
2895                         dbesc(normalise_link($fsugg['url'])),
2896                         intval($fsugg['uid'])
2897                 );
2898                 if(count($r))
2899                         return 0;
2900
2901                 // Do we already have an fcontact record for this person?
2902
2903                 $fid = 0;
2904                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2905                         dbesc($fsugg['url']),
2906                         dbesc($fsugg['name']),
2907                         dbesc($fsugg['request'])
2908                 );
2909                 if(count($r)) {
2910                         $fid = $r[0]['id'];
2911
2912                         // OK, we do. Do we already have an introduction for this person ?
2913                         $r = q("select id from intro where uid = %d and fid = %d limit 1",
2914                                 intval($fsugg['uid']),
2915                                 intval($fid)
2916                         );
2917                         if(count($r))
2918                                 return 0;
2919                 }
2920                 if(! $fid)
2921                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
2922                         dbesc($fsugg['name']),
2923                         dbesc($fsugg['url']),
2924                         dbesc($fsugg['photo']),
2925                         dbesc($fsugg['request'])
2926                 );
2927                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2928                         dbesc($fsugg['url']),
2929                         dbesc($fsugg['name']),
2930                         dbesc($fsugg['request'])
2931                 );
2932                 if(count($r)) {
2933                         $fid = $r[0]['id'];
2934                 }
2935                 // database record did not get created. Quietly give up.
2936                 else
2937                         return 0;
2938
2939
2940                 $hash = random_string();
2941
2942                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
2943                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
2944                         intval($fsugg['uid']),
2945                         intval($fid),
2946                         intval($fsugg['cid']),
2947                         dbesc($fsugg['body']),
2948                         dbesc($hash),
2949                         dbesc(datetime_convert()),
2950                         intval(0)
2951                 );
2952
2953                 notification(array(
2954                         'type'         => NOTIFY_SUGGEST,
2955                         'notify_flags' => $importer['notify-flags'],
2956                         'language'     => $importer['language'],
2957                         'to_name'      => $importer['username'],
2958                         'to_email'     => $importer['email'],
2959                         'uid'          => $importer['importer_uid'],
2960                         'item'         => $fsugg,
2961                         'link'         => $a->get_baseurl() . '/notifications/intros',
2962                         'source_name'  => $importer['name'],
2963                         'source_link'  => $importer['url'],
2964                         'source_photo' => $importer['photo'],
2965                         'verb'         => ACTIVITY_REQ_FRIEND,
2966                         'otype'        => 'intro'
2967                 ));
2968
2969                 return 0;
2970         }
2971
2972         $ismail = false;
2973
2974         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
2975         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
2976
2977                 logger('local_delivery: private message received');
2978
2979                 $ismail = true;
2980                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
2981
2982                 $msg = array();
2983                 $msg['uid'] = $importer['importer_uid'];
2984                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
2985                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
2986                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
2987                 $msg['contact-id'] = $importer['id'];
2988                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
2989                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
2990                 $msg['seen'] = 0;
2991                 $msg['replied'] = 0;
2992                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
2993                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
2994                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
2995
2996                 dbesc_array($msg);
2997
2998                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
2999                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
3000
3001                 // send notifications.
3002
3003                 require_once('include/enotify.php');
3004
3005                 $notif_params = array(
3006                         'type' => NOTIFY_MAIL,
3007                         'notify_flags' => $importer['notify-flags'],
3008                         'language' => $importer['language'],
3009                         'to_name' => $importer['username'],
3010                         'to_email' => $importer['email'],
3011                         'uid' => $importer['importer_uid'],
3012                         'item' => $msg,
3013                         'source_name' => $msg['from-name'],
3014                         'source_link' => $importer['url'],
3015                         'source_photo' => $importer['thumb'],
3016                         'verb' => ACTIVITY_POST,
3017                         'otype' => 'mail'
3018                 );
3019
3020                 notification($notif_params);
3021                 return 0;
3022
3023                 // NOTREACHED
3024         }
3025
3026         $community_page = 0;
3027         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
3028         if($rawtags) {
3029                 $community_page = intval($rawtags[0]['data']);
3030         }
3031         if(intval($importer['forum']) != $community_page) {
3032                 q("update contact set forum = %d where id = %d",
3033                         intval($community_page),
3034                         intval($importer['id'])
3035                 );
3036                 $importer['forum'] = (string) $community_page;
3037         }
3038
3039         logger('local_delivery: feed item count = ' . $feed->get_item_quantity());
3040
3041         // process any deleted entries
3042
3043         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
3044         if(is_array($del_entries) && count($del_entries)) {
3045                 foreach($del_entries as $dentry) {
3046                         $deleted = false;
3047                         if(isset($dentry['attribs']['']['ref'])) {
3048                                 $uri = $dentry['attribs']['']['ref'];
3049                                 $deleted = true;
3050                                 if(isset($dentry['attribs']['']['when'])) {
3051                                         $when = $dentry['attribs']['']['when'];
3052                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
3053                                 }
3054                                 else
3055                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
3056                         }
3057                         if($deleted) {
3058
3059                                 // check for relayed deletes to our conversation
3060
3061                                 $is_reply = false;
3062                                 $r = q("select * from item where uri = '%s' and uid = %d limit 1",
3063                                         dbesc($uri),
3064                                         intval($importer['importer_uid'])
3065                                 );
3066                                 if(count($r)) {
3067                                         $parent_uri = $r[0]['parent-uri'];
3068                                         if($r[0]['id'] != $r[0]['parent'])
3069                                                 $is_reply = true;
3070                                 }
3071
3072                                 if($is_reply) {
3073                                         $community = false;
3074
3075                                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
3076                                                 $sql_extra = '';
3077                                                 $community = true;
3078                                                 logger('local_delivery: possible community delete');
3079                                         }
3080                                         else
3081                                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
3082
3083                                         // was the top-level post for this reply written by somebody on this site?
3084                                         // Specifically, the recipient?
3085
3086                                         $is_a_remote_delete = false;
3087
3088                                         // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
3089                                         $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
3090                                                 `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
3091                                                 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
3092                                                 WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
3093                                                 AND `item`.`uid` = %d
3094                                                 $sql_extra
3095                                                 LIMIT 1",
3096                                                 dbesc($parent_uri),
3097                                                 dbesc($parent_uri),
3098                                                 dbesc($parent_uri),
3099                                                 intval($importer['importer_uid'])
3100                                         );
3101                                         if($r && count($r))
3102                                                 $is_a_remote_delete = true;
3103
3104                                         // Does this have the characteristics of a community or private group comment?
3105                                         // If it's a reply to a wall post on a community/prvgroup page it's a
3106                                         // valid community comment. Also forum_mode makes it valid for sure.
3107                                         // If neither, it's not.
3108
3109                                         if($is_a_remote_delete && $community) {
3110                                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
3111                                                         $is_a_remote_delete = false;
3112                                                         logger('local_delivery: not a community delete');
3113                                                 }
3114                                         }
3115
3116                                         if($is_a_remote_delete) {
3117                                                 logger('local_delivery: received remote delete');
3118                                         }
3119                                 }
3120
3121                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` INNER JOIN contact on `item`.`contact-id` = `contact`.`id`
3122                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
3123                                         dbesc($uri),
3124                                         intval($importer['importer_uid']),
3125                                         intval($importer['id'])
3126                                 );
3127
3128                                 if(count($r)) {
3129                                         $item = $r[0];
3130
3131                                         if($item['deleted'])
3132                                                 continue;
3133
3134                                         logger('local_delivery: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
3135
3136                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3137                                                 $xo = parse_xml_string($item['object'],false);
3138                                                 $xt = parse_xml_string($item['target'],false);
3139
3140                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
3141                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
3142                                                                 dbesc($xt->id),
3143                                                                 intval($importer['importer_uid'])
3144                                                         );
3145                                                         if(count($i)) {
3146
3147                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
3148
3149                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
3150                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
3151                                                                 $author_copy = (($item['origin']) ? true : false);
3152
3153                                                                 if($owner_remove && $author_copy)
3154                                                                         continue;
3155                                                                 if($author_remove || $owner_remove) {
3156                                                                         $tags = explode(',',$i[0]['tag']);
3157                                                                         $newtags = array();
3158                                                                         if(count($tags)) {
3159                                                                                 foreach($tags as $tag)
3160                                                                                         if(trim($tag) !== trim($xo->body))
3161                                                                                                 $newtags[] = trim($tag);
3162                                                                         }
3163                                                                         q("update item set tag = '%s' where id = %d",
3164                                                                                 dbesc(implode(',',$newtags)),
3165                                                                                 intval($i[0]['id'])
3166                                                                         );
3167                                                                         create_tags_from_item($i[0]['id']);
3168                                                                 }
3169                                                         }
3170                                                 }
3171                                         }
3172
3173                                         if($item['uri'] == $item['parent-uri']) {
3174                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
3175                                                         `body` = '', `title` = ''
3176                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
3177                                                         dbesc($when),
3178                                                         dbesc(datetime_convert()),
3179                                                         dbesc($item['uri']),
3180                                                         intval($importer['importer_uid'])
3181                                                 );
3182                                                 create_tags_from_itemuri($item['uri'], $importer['importer_uid']);
3183                                                 create_files_from_itemuri($item['uri'], $importer['importer_uid']);
3184                                                 update_thread_uri($item['uri'], $importer['importer_uid']);
3185                                         }
3186                                         else {
3187                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
3188                                                         `body` = '', `title` = ''
3189                                                         WHERE `uri` = '%s' AND `uid` = %d",
3190                                                         dbesc($when),
3191                                                         dbesc(datetime_convert()),
3192                                                         dbesc($uri),
3193                                                         intval($importer['importer_uid'])
3194                                                 );
3195                                                 create_tags_from_itemuri($uri, $importer['importer_uid']);
3196                                                 create_files_from_itemuri($uri, $importer['importer_uid']);
3197                                                 update_thread_uri($uri, $importer['importer_uid']);
3198                                                 if($item['last-child']) {
3199                                                         // ensure that last-child is set in case the comment that had it just got wiped.
3200                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
3201                                                                 dbesc(datetime_convert()),
3202                                                                 dbesc($item['parent-uri']),
3203                                                                 intval($item['uid'])
3204                                                         );
3205                                                         // who is the last child now?
3206                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
3207                                                                 ORDER BY `created` DESC LIMIT 1",
3208                                                                         dbesc($item['parent-uri']),
3209                                                                         intval($importer['importer_uid'])
3210                                                         );
3211                                                         if(count($r)) {
3212                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
3213                                                                         intval($r[0]['id'])
3214                                                                 );
3215                                                         }
3216                                                 }
3217                                                 // if this is a relayed delete, propagate it to other recipients
3218
3219                                                 if($is_a_remote_delete)
3220                                                         proc_run('php',"include/notifier.php","drop",$item['id']);
3221                                         }
3222                                 }
3223                         }
3224                 }
3225         }
3226
3227
3228         foreach($feed->get_items() as $item) {
3229
3230                 $is_reply = false;
3231                 $item_id = $item->get_id();
3232                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
3233                 if(isset($rawthread[0]['attribs']['']['ref'])) {
3234                         $is_reply = true;
3235                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
3236                 }
3237
3238                 if($is_reply) {
3239                         $community = false;
3240
3241                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
3242                                 $sql_extra = '';
3243                                 $community = true;
3244                                 logger('local_delivery: possible community reply');
3245                         }
3246                         else
3247                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
3248
3249                         // was the top-level post for this reply written by somebody on this site?
3250                         // Specifically, the recipient?
3251
3252                         $is_a_remote_comment = false;
3253                         $top_uri = $parent_uri;
3254
3255                         $r = q("select `item`.`parent-uri` from `item`
3256                                 WHERE `item`.`uri` = '%s'
3257                                 LIMIT 1",
3258                                 dbesc($parent_uri)
3259                         );
3260                         if($r && count($r)) {
3261                                 $top_uri = $r[0]['parent-uri'];
3262
3263                                 // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
3264                                 $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
3265                                         `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
3266                                         INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
3267                                         WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
3268                                         AND `item`.`uid` = %d
3269                                         $sql_extra
3270                                         LIMIT 1",
3271                                         dbesc($top_uri),
3272                                         dbesc($top_uri),
3273                                         dbesc($top_uri),
3274                                         intval($importer['importer_uid'])
3275                                 );
3276                                 if($r && count($r))
3277                                         $is_a_remote_comment = true;
3278                         }
3279
3280                         // Does this have the characteristics of a community or private group comment?
3281                         // If it's a reply to a wall post on a community/prvgroup page it's a
3282                         // valid community comment. Also forum_mode makes it valid for sure.
3283                         // If neither, it's not.
3284
3285                         if($is_a_remote_comment && $community) {
3286                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
3287                                         $is_a_remote_comment = false;
3288                                         logger('local_delivery: not a community reply');
3289                                 }
3290                         }
3291
3292                         if($is_a_remote_comment) {
3293                                 logger('local_delivery: received remote comment');
3294                                 $is_like = false;
3295                                 // remote reply to our post. Import and then notify everybody else.
3296
3297                                 $datarray = get_atom_elements($feed, $item);
3298
3299                                 $r = q("SELECT `id`, `uid`, `last-child`, `edited`, `body`  FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3300                                         dbesc($item_id),
3301                                         intval($importer['importer_uid'])
3302                                 );
3303
3304                                 // Update content if 'updated' changes
3305
3306                                 if(count($r)) {
3307                                         $iid = $r[0]['id'];
3308                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
3309
3310                                                 // do not accept (ignore) an earlier edit than one we currently have.
3311                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3312                                                         continue;
3313
3314                                                 logger('received updated comment' , LOGGER_DEBUG);
3315                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3316                                                         dbesc($datarray['title']),
3317                                                         dbesc($datarray['body']),
3318                                                         dbesc($datarray['tag']),
3319                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3320                                                         dbesc(datetime_convert()),
3321                                                         dbesc($item_id),
3322                                                         intval($importer['importer_uid'])
3323                                                 );
3324                                                 create_tags_from_itemuri($item_id, $importer['importer_uid']);
3325
3326                                                 proc_run('php',"include/notifier.php","comment-import",$iid);
3327
3328                                         }
3329
3330                                         continue;
3331                                 }
3332
3333
3334
3335                                 $own = q("select name,url,thumb from contact where uid = %d and self = 1 limit 1",
3336                                         intval($importer['importer_uid'])
3337                                 );
3338
3339
3340                                 $datarray['type'] = 'remote-comment';
3341                                 $datarray['wall'] = 1;
3342                                 $datarray['parent-uri'] = $parent_uri;
3343                                 $datarray['uid'] = $importer['importer_uid'];
3344                                 $datarray['owner-name'] = $own[0]['name'];
3345                                 $datarray['owner-link'] = $own[0]['url'];
3346                                 $datarray['owner-avatar'] = $own[0]['thumb'];
3347                                 $datarray['contact-id'] = $importer['id'];
3348
3349                                 if(($datarray['verb'] === ACTIVITY_LIKE) || ($datarray['verb'] === ACTIVITY_DISLIKE)) {
3350                                         $is_like = true;
3351                                         $datarray['type'] = 'activity';
3352                                         $datarray['gravity'] = GRAVITY_LIKE;
3353                                         $datarray['last-child'] = 0;
3354                                         // only one like or dislike per person
3355                                         // splitted into two queries for performance issues
3356                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`parent-uri` = '%s') and deleted = 0 limit 1",
3357                                                 intval($datarray['uid']),
3358                                                 intval($datarray['contact-id']),
3359                                                 dbesc($datarray['verb']),
3360                                                 dbesc($datarray['parent-uri'])
3361
3362                                         );
3363                                         if($r && count($r))
3364                                                 continue;
3365
3366                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`thr-parent` = '%s') and deleted = 0 limit 1",
3367                                                 intval($datarray['uid']),
3368                                                 intval($datarray['contact-id']),
3369                                                 dbesc($datarray['verb']),
3370                                                 dbesc($datarray['parent-uri'])
3371
3372                                         );
3373                                         if($r && count($r))
3374                                                 continue;
3375                                 }
3376
3377                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3378
3379                                         $xo = parse_xml_string($datarray['object'],false);
3380                                         $xt = parse_xml_string($datarray['target'],false);
3381
3382                                         if(($xt->type == ACTIVITY_OBJ_NOTE) && ($xt->id)) {
3383
3384                                                 // fetch the parent item
3385
3386                                                 $tagp = q("select * from item where uri = '%s' and uid = %d limit 1",
3387                                                         dbesc($xt->id),
3388                                                         intval($importer['importer_uid'])
3389                                                 );
3390                                                 if(! count($tagp))
3391                                                         continue;
3392
3393                                                 // extract tag, if not duplicate, and this user allows tags, add to parent item
3394
3395                                                 if($xo->id && $xo->content) {
3396                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
3397                                                         if(! (stristr($tagp[0]['tag'],$newtag))) {
3398                                                                 $i = q("SELECT `blocktags` FROM `user` where `uid` = %d LIMIT 1",
3399                                                                         intval($importer['importer_uid'])
3400                                                                 );
3401                                                                 if(count($i) && ! intval($i[0]['blocktags'])) {
3402                                                                         q("UPDATE item SET tag = '%s', `edited` = '%s', `changed` = '%s' WHERE id = %d",
3403                                                                                 dbesc($tagp[0]['tag'] . (strlen($tagp[0]['tag']) ? ',' : '') . $newtag),
3404                                                                                 intval($tagp[0]['id']),
3405                                                                                 dbesc(datetime_convert()),
3406                                                                                 dbesc(datetime_convert())
3407                                                                         );
3408                                                                         create_tags_from_item($tagp[0]['id']);
3409                                                                 }
3410                                                         }
3411                                                 }
3412                                         }
3413                                 }
3414
3415
3416                                 $posted_id = item_store($datarray);
3417                                 $parent = 0;
3418
3419                                 if($posted_id) {
3420                                         $r = q("SELECT `parent`, `parent-uri` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
3421                                                 intval($posted_id),
3422                                                 intval($importer['importer_uid'])
3423                                         );
3424                                         if(count($r)) {
3425                                                 $parent = $r[0]['parent'];
3426                                                 $parent_uri = $r[0]['parent-uri'];
3427                                         }
3428
3429                                         if(! $is_like) {
3430                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
3431                                                         dbesc(datetime_convert()),
3432                                                         intval($importer['importer_uid']),
3433                                                         intval($r[0]['parent'])
3434                                                 );
3435
3436                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d",
3437                                                         dbesc(datetime_convert()),
3438                                                         intval($importer['importer_uid']),
3439                                                         intval($posted_id)
3440                                                 );
3441                                         }
3442
3443                                         if($posted_id && $parent) {
3444
3445                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
3446
3447                                                 if((! $is_like) && (! $importer['self'])) {
3448
3449                                                         require_once('include/enotify.php');
3450
3451                                                         notification(array(
3452                                                                 'type'         => NOTIFY_COMMENT,
3453                                                                 'notify_flags' => $importer['notify-flags'],
3454                                                                 'language'     => $importer['language'],
3455                                                                 'to_name'      => $importer['username'],
3456                                                                 'to_email'     => $importer['email'],
3457                                                                 'uid'          => $importer['importer_uid'],
3458                                                                 'item'         => $datarray,
3459                                                                 'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3460                                                                 'source_name'  => stripslashes($datarray['author-name']),
3461                                                                 'source_link'  => $datarray['author-link'],
3462                                                                 'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3463                                                                         ? $importer['thumb'] : $datarray['author-avatar']),
3464                                                                 'verb'         => ACTIVITY_POST,
3465                                                                 'otype'        => 'item',
3466                                                                 'parent'       => $parent,
3467                                                                 'parent_uri'   => $parent_uri,
3468                                                         ));
3469
3470                                                 }
3471                                         }
3472
3473                                         return 0;
3474                                         // NOTREACHED
3475                                 }
3476                         }
3477                         else {
3478
3479                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
3480
3481                                 $item_id  = $item->get_id();
3482                                 $datarray = get_atom_elements($feed,$item);
3483
3484                                 if($importer['rel'] == CONTACT_IS_FOLLOWER)
3485                                         continue;
3486
3487                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3488                                         dbesc($item_id),
3489                                         intval($importer['importer_uid'])
3490                                 );
3491
3492                                 // Update content if 'updated' changes
3493
3494                                 if(count($r)) {
3495                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
3496
3497                                                 // do not accept (ignore) an earlier edit than one we currently have.
3498                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3499                                                         continue;
3500
3501                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3502                                                         dbesc($datarray['title']),
3503                                                         dbesc($datarray['body']),
3504                                                         dbesc($datarray['tag']),
3505                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3506                                                         dbesc(datetime_convert()),
3507                                                         dbesc($item_id),
3508                                                         intval($importer['importer_uid'])
3509                                                 );
3510                                                 create_tags_from_itemuri($item_id, $importer['importer_uid']);
3511                                         }
3512
3513                                         // update last-child if it changes
3514
3515                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3516                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
3517                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
3518                                                         dbesc(datetime_convert()),
3519                                                         dbesc($parent_uri),
3520                                                         intval($importer['importer_uid'])
3521                                                 );
3522                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d",
3523                                                         intval($allow[0]['data']),
3524                                                         dbesc(datetime_convert()),
3525                                                         dbesc($item_id),
3526                                                         intval($importer['importer_uid'])
3527                                                 );
3528                                         }
3529                                         continue;
3530                                 }
3531
3532                                 $datarray['parent-uri'] = $parent_uri;
3533                                 $datarray['uid'] = $importer['importer_uid'];
3534                                 $datarray['contact-id'] = $importer['id'];
3535                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
3536                                         $datarray['type'] = 'activity';
3537                                         $datarray['gravity'] = GRAVITY_LIKE;
3538                                         // only one like or dislike per person
3539                                         // splitted into two queries for performance issues
3540                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s') limit 1",
3541                                                 intval($datarray['uid']),
3542                                                 intval($datarray['contact-id']),
3543                                                 dbesc($datarray['verb']),
3544                                                 dbesc($parent_uri)
3545                                         );
3546                                         if($r && count($r))
3547                                                 continue;
3548
3549                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`thr-parent` = '%s') limit 1",
3550                                                 intval($datarray['uid']),
3551                                                 intval($datarray['contact-id']),
3552                                                 dbesc($datarray['verb']),
3553                                                 dbesc($parent_uri)
3554                                         );
3555                                         if($r && count($r))
3556                                                 continue;
3557
3558                                 }
3559
3560                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3561
3562                                         $xo = parse_xml_string($datarray['object'],false);
3563                                         $xt = parse_xml_string($datarray['target'],false);
3564
3565                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
3566                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
3567                                                         dbesc($xt->id),
3568                                                         intval($importer['importer_uid'])
3569                                                 );
3570                                                 if(! count($r))
3571                                                         continue;
3572
3573                                                 // extract tag, if not duplicate, add to parent item
3574                                                 if($xo->content) {
3575                                                         if(! (stristr($r[0]['tag'],trim($xo->content)))) {
3576                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d",
3577                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
3578                                                                         intval($r[0]['id'])
3579                                                                 );
3580                                                                 create_tags_from_item($r[0]['id']);
3581                                                         }
3582                                                 }
3583                                         }
3584                                 }
3585
3586                                 $posted_id = item_store($datarray);
3587
3588                                 // find out if our user is involved in this conversation and wants to be notified.
3589
3590                                 if(!x($datarray['type']) || $datarray['type'] != 'activity') {
3591
3592                                         $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
3593                                                 dbesc($top_uri),
3594                                                 intval($importer['importer_uid'])
3595                                         );
3596
3597                                         if(count($myconv)) {
3598                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
3599
3600                                                 // first make sure this isn't our own post coming back to us from a wall-to-wall event
3601                                                 if(! link_compare($datarray['author-link'],$importer_url)) {
3602
3603
3604                                                         foreach($myconv as $conv) {
3605
3606                                                                 // now if we find a match, it means we're in this conversation
3607
3608                                                                 if(! link_compare($conv['author-link'],$importer_url))
3609                                                                         continue;
3610
3611                                                                 require_once('include/enotify.php');
3612
3613                                                                 $conv_parent = $conv['parent'];
3614
3615                                                                 notification(array(
3616                                                                         'type'         => NOTIFY_COMMENT,
3617                                                                         'notify_flags' => $importer['notify-flags'],
3618                                                                         'language'     => $importer['language'],
3619                                                                         'to_name'      => $importer['username'],
3620                                                                         'to_email'     => $importer['email'],
3621                                                                         'uid'          => $importer['importer_uid'],
3622                                                                         'item'         => $datarray,
3623                                                                         'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3624                                                                         'source_name'  => stripslashes($datarray['author-name']),
3625                                                                         'source_link'  => $datarray['author-link'],
3626                                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3627                                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3628                                                                         'verb'         => ACTIVITY_POST,
3629                                                                         'otype'        => 'item',
3630                                                                         'parent'       => $conv_parent,
3631                                                                         'parent_uri'   => $parent_uri
3632
3633                                                                 ));
3634
3635                                                                 // only send one notification
3636                                                                 break;
3637                                                         }
3638                                                 }
3639                                         }
3640                                 }
3641                                 continue;
3642                         }
3643                 }
3644
3645                 else {
3646
3647                         // Head post of a conversation. Have we seen it? If not, import it.
3648
3649
3650                         $item_id  = $item->get_id();
3651                         $datarray = get_atom_elements($feed,$item);
3652
3653                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
3654                                 $ev = bbtoevent($datarray['body']);
3655                                 if(x($ev,'desc') && x($ev,'start')) {
3656                                         $ev['cid'] = $importer['id'];
3657                                         $ev['uid'] = $importer['uid'];
3658                                         $ev['uri'] = $item_id;
3659                                         $ev['edited'] = $datarray['edited'];
3660                                         $ev['private'] = $datarray['private'];
3661
3662                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3663                                                 dbesc($item_id),
3664                                                 intval($importer['uid'])
3665                                         );
3666                                         if(count($r))
3667                                                 $ev['id'] = $r[0]['id'];
3668                                         $xyz = event_store($ev);
3669                                         continue;
3670                                 }
3671                         }
3672
3673                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3674                                 dbesc($item_id),
3675                                 intval($importer['importer_uid'])
3676                         );
3677
3678                         // Update content if 'updated' changes
3679
3680                         if(count($r)) {
3681                                 if (edited_timestamp_is_newer($r[0], $datarray)) {
3682
3683                                         // do not accept (ignore) an earlier edit than one we currently have.
3684                                         if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3685                                                 continue;
3686
3687                                         $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3688                                                 dbesc($datarray['title']),
3689                                                 dbesc($datarray['body']),
3690                                                 dbesc($datarray['tag']),
3691                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3692                                                 dbesc(datetime_convert()),
3693                                                 dbesc($item_id),
3694                                                 intval($importer['importer_uid'])
3695                                         );
3696                                         create_tags_from_itemuri($item_id, $importer['importer_uid']);
3697                                         update_thread_uri($item_id, $importer['importer_uid']);
3698                                 }
3699
3700                                 // update last-child if it changes
3701
3702                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3703                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
3704                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3705                                                 intval($allow[0]['data']),
3706                                                 dbesc(datetime_convert()),
3707                                                 dbesc($item_id),
3708                                                 intval($importer['importer_uid'])
3709                                         );
3710                                 }
3711                                 continue;
3712                         }
3713
3714                         $datarray['parent-uri'] = $item_id;
3715                         $datarray['uid'] = $importer['importer_uid'];
3716                         $datarray['contact-id'] = $importer['id'];
3717
3718
3719                         if(! link_compare($datarray['owner-link'],$importer['url'])) {
3720                                 // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
3721                                 // but otherwise there's a possible data mixup on the sender's system.
3722                                 // the tgroup delivery code called from item_store will correct it if it's a forum,
3723                                 // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
3724                                 logger('local_delivery: Correcting item owner.', LOGGER_DEBUG);
3725                                 $datarray['owner-name']   = $importer['senderName'];
3726                                 $datarray['owner-link']   = $importer['url'];
3727                                 $datarray['owner-avatar'] = $importer['thumb'];
3728                         }
3729
3730                         if(($importer['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['importer_uid'],$datarray)))
3731                                 continue;
3732
3733                         // This is my contact on another system, but it's really me.
3734                         // Turn this into a wall post.
3735
3736                         if($importer['remote_self']) {
3737                                 if ($importer['remote_self'] == 2) {
3738                                         $r = q("SELECT `id`,`url`,`name`,`photo`,`network` FROM `contact` WHERE `uid` = %d AND `self`",
3739                                                 intval($importer['importer_uid']));
3740                                         if (count($r)) {
3741                                                 $datarray['contact-id'] = $r[0]["id"];
3742
3743                                                 $datarray['owner-name'] = $r[0]["name"];
3744                                                 $datarray['owner-link'] = $r[0]["url"];
3745                                                 $datarray['owner-avatar'] = $r[0]["photo"];
3746
3747                                                 $datarray['author-name']   = $datarray['owner-name'];
3748                                                 $datarray['author-link']   = $datarray['owner-link'];
3749                                                 $datarray['author-avatar'] = $datarray['owner-avatar'];
3750                                         }
3751                                 }
3752
3753                                 $notify = true;
3754                         } else
3755                                 $notify = false;
3756
3757                         $posted_id = item_store($datarray, false, $notify);
3758
3759                         if(stristr($datarray['verb'],ACTIVITY_POKE)) {
3760                                 $verb = urldecode(substr($datarray['verb'],strpos($datarray['verb'],'#')+1));
3761                                 if(! $verb)
3762                                         continue;
3763                                 $xo = parse_xml_string($datarray['object'],false);
3764
3765                                 if(($xo->type == ACTIVITY_OBJ_PERSON) && ($xo->id)) {
3766
3767                                         // somebody was poked/prodded. Was it me?
3768
3769                                         $links = parse_xml_string("<links>".unxmlify($xo->link)."</links>",false);
3770
3771                                 foreach($links->link as $l) {
3772                                 $atts = $l->attributes();
3773                                 switch($atts['rel']) {
3774                                         case "alternate":
3775                                                                 $Blink = $atts['href'];
3776                                                                 break;
3777                                                         default:
3778                                                                 break;
3779                                     }
3780                                 }
3781                                         if($Blink && link_compare($Blink,$a->get_baseurl() . '/profile/' . $importer['nickname'])) {
3782
3783                                                 // send a notification
3784                                                 require_once('include/enotify.php');
3785
3786                                                 notification(array(
3787                                                         'type'         => NOTIFY_POKE,
3788                                                         'notify_flags' => $importer['notify-flags'],
3789                                                         'language'     => $importer['language'],
3790                                                         'to_name'      => $importer['username'],
3791                                                         'to_email'     => $importer['email'],
3792                                                         'uid'          => $importer['importer_uid'],
3793                                                         'item'         => $datarray,
3794                                                         'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3795                                                         'source_name'  => stripslashes($datarray['author-name']),
3796                                                         'source_link'  => $datarray['author-link'],
3797                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3798                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3799                                                         'verb'         => $datarray['verb'],
3800                                                         'otype'        => 'person',
3801                                                         'activity'     => $verb,
3802
3803                                                 ));
3804                                         }
3805                                 }
3806                         }
3807
3808                         continue;
3809                 }
3810         }
3811
3812         return 0;
3813         // NOTREACHED
3814
3815 }
3816
3817
3818 function new_follower($importer,$contact,$datarray,$item,$sharing = false) {
3819         $url = notags(trim($datarray['author-link']));
3820         $name = notags(trim($datarray['author-name']));
3821         $photo = notags(trim($datarray['author-avatar']));
3822
3823         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
3824         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
3825                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
3826
3827         if(is_array($contact)) {
3828                 if(($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
3829                         || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
3830                         $r = q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
3831                                 intval(CONTACT_IS_FRIEND),
3832                                 intval($contact['id']),
3833                                 intval($importer['uid'])
3834                         );
3835                 }
3836                 // send email notification to owner?
3837         }
3838         else {
3839
3840                 // create contact record
3841
3842                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
3843                         `blocked`, `readonly`, `pending`, `writable` )
3844                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
3845                         intval($importer['uid']),
3846                         dbesc(datetime_convert()),
3847                         dbesc($url),
3848                         dbesc(normalise_link($url)),
3849                         dbesc($name),
3850                         dbesc($nick),
3851                         dbesc($photo),
3852                         dbesc(($sharing) ? NETWORK_ZOT : NETWORK_OSTATUS),
3853                         intval(($sharing) ? CONTACT_IS_SHARING : CONTACT_IS_FOLLOWER)
3854                 );
3855                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
3856                                 intval($importer['uid']),
3857                                 dbesc($url)
3858                 );
3859                 if(count($r))
3860                                 $contact_record = $r[0];
3861
3862                 // create notification
3863                 $hash = random_string();
3864
3865                 if(is_array($contact_record)) {
3866                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
3867                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
3868                                 intval($importer['uid']),
3869                                 intval($contact_record['id']),
3870                                 dbesc($hash),
3871                                 dbesc(datetime_convert())
3872                         );
3873                 }
3874
3875                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
3876                         intval($importer['uid'])
3877                 );
3878                 $a = get_app();
3879                 if(count($r)) {
3880
3881                         if(intval($r[0]['def_gid'])) {
3882                                 require_once('include/group.php');
3883                                 group_add_member($r[0]['uid'],'',$contact_record['id'],$r[0]['def_gid']);
3884                         }
3885
3886                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) &&
3887                                 (($r[0]['page-flags'] == PAGE_NORMAL) OR ($r[0]['page-flags'] == PAGE_SOAPBOX))) {
3888
3889
3890
3891                                 notification(array(
3892                                         'type'         => NOTIFY_INTRO,
3893                                         'notify_flags' => $r[0]['notify-flags'],
3894                                         'language'     => $r[0]['language'],
3895                                         'to_name'      => $r[0]['username'],
3896                                         'to_email'     => $r[0]['email'],
3897                                         'uid'          => $r[0]['uid'],
3898                                         'link'             => $a->get_baseurl() . '/notifications/intro',
3899                                         'source_name'  => ((strlen(stripslashes($contact_record['name']))) ? stripslashes($contact_record['name']) : t('[Name Withheld]')),
3900                                         'source_link'  => $contact_record['url'],
3901                                         'source_photo' => $contact_record['photo'],
3902                                         'verb'         => ($sharing ? ACTIVITY_FRIEND : ACTIVITY_FOLLOW),
3903                                         'otype'        => 'intro'
3904                                 ));
3905
3906
3907                         }
3908                 }
3909         }
3910 }
3911
3912 function lose_follower($importer,$contact,$datarray,$item) {
3913
3914         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
3915                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d",
3916                         intval(CONTACT_IS_SHARING),
3917                         intval($contact['id'])
3918                 );
3919         }
3920         else {
3921                 contact_remove($contact['id']);
3922         }
3923 }
3924
3925 function lose_sharer($importer,$contact,$datarray,$item) {
3926
3927         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
3928                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d",
3929                         intval(CONTACT_IS_FOLLOWER),
3930                         intval($contact['id'])
3931                 );
3932         }
3933         else {
3934                 contact_remove($contact['id']);
3935         }
3936 }
3937
3938
3939 function subscribe_to_hub($url,$importer,$contact,$hubmode = 'subscribe') {
3940
3941         $a = get_app();
3942
3943         if(is_array($importer)) {
3944                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
3945                         intval($importer['uid'])
3946                 );
3947         }
3948
3949         // Diaspora has different message-ids in feeds than they do
3950         // through the direct Diaspora protocol. If we try and use
3951         // the feed, we'll get duplicates. So don't.
3952
3953         if((! count($r)) || $contact['network'] === NETWORK_DIASPORA)
3954                 return;
3955
3956         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
3957
3958         // Use a single verify token, even if multiple hubs
3959
3960         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
3961
3962         $params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
3963
3964         logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
3965
3966         if(! strlen($contact['hub-verify'])) {
3967                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d",
3968                         dbesc($verify_token),
3969                         intval($contact['id'])
3970                 );
3971         }
3972
3973         post_url($url,$params);
3974
3975         logger('subscribe_to_hub: returns: ' . $a->get_curl_code(), LOGGER_DEBUG);
3976
3977         return;
3978
3979 }
3980
3981
3982 function atom_author($tag,$name,$uri,$h,$w,$photo) {
3983         $o = '';
3984         if(! $tag)
3985                 return $o;
3986         $name = xmlify($name);
3987         $uri = xmlify($uri);
3988         $h = intval($h);
3989         $w = intval($w);
3990         $photo = xmlify($photo);
3991
3992
3993         $o .= "<$tag>\r\n";
3994         $o .= "<name>$name</name>\r\n";
3995         $o .= "<uri>$uri</uri>\r\n";
3996         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
3997         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
3998
3999         call_hooks('atom_author', $o);
4000
4001         $o .= "</$tag>\r\n";
4002         return $o;
4003 }
4004
4005 function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) {
4006
4007         $a = get_app();
4008
4009         if(! $item['parent'])
4010                 return;
4011
4012         if($item['deleted'])
4013                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
4014
4015
4016         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
4017                 $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
4018         else
4019                 $body = $item['body'];
4020
4021         $o = "\r\n\r\n<entry>\r\n";
4022
4023         if(is_array($author))
4024                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
4025         else
4026                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
4027         if(strlen($item['owner-name']))
4028                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
4029
4030         if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
4031                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
4032                 $o .= '<thr:in-reply-to ref="' . xmlify($parent_item) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['parent']) . '" />' . "\r\n";
4033         }
4034
4035         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
4036         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
4037         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
4038         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
4039         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
4040         $o .= '<content type="' . $type . '" >' . xmlify((($type === 'html') ? bbcode($body) : $body)) . '</content>' . "\r\n";
4041         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
4042         if($comment)
4043                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
4044
4045         if($item['location']) {
4046                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
4047                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
4048         }
4049
4050         if($item['coord'])
4051                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
4052
4053         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
4054                 $o .= '<dfrn:private>' . (($item['private']) ? $item['private'] : 1) . '</dfrn:private>' . "\r\n";
4055
4056         if($item['extid'])
4057                 $o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
4058         if($item['bookmark'])
4059                 $o .= '<dfrn:bookmark>true</dfrn:bookmark>' . "\r\n";
4060
4061         if($item['app'])
4062                 $o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
4063
4064         if($item['guid'])
4065                 $o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
4066
4067         if($item['signed_text']) {
4068                 $sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
4069                 $o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
4070         }
4071
4072         $verb = construct_verb($item);
4073         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
4074         $actobj = construct_activity_object($item);
4075         if(strlen($actobj))
4076                 $o .= $actobj;
4077         $actarg = construct_activity_target($item);
4078         if(strlen($actarg))
4079                 $o .= $actarg;
4080
4081         $tags = item_getfeedtags($item);
4082         if(count($tags)) {
4083                 foreach($tags as $t) {
4084                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
4085                 }
4086         }
4087
4088         $o .= item_getfeedattach($item);
4089
4090         $mentioned = get_mentions($item);
4091         if($mentioned)
4092                 $o .= $mentioned;
4093
4094         call_hooks('atom_entry', $o);
4095
4096         $o .= '</entry>' . "\r\n";
4097
4098         return $o;
4099 }
4100
4101 function fix_private_photos($s, $uid, $item = null, $cid = 0) {
4102
4103         if(get_config('system','disable_embedded'))
4104                 return $s;
4105
4106         $a = get_app();
4107
4108         logger('fix_private_photos: check for photos', LOGGER_DEBUG);
4109         $site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
4110
4111         $orig_body = $s;
4112         $new_body = '';
4113
4114         $img_start = strpos($orig_body, '[img');
4115         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
4116         $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
4117         while( ($img_st_close !== false) && ($img_len !== false) ) {
4118
4119                 $img_st_close++; // make it point to AFTER the closing bracket
4120                 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
4121
4122                 logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
4123
4124
4125                 if(stristr($image , $site . '/photo/')) {
4126                         // Only embed locally hosted photos
4127                         $replace = false;
4128                         $i = basename($image);
4129                         $i = str_replace(array('.jpg','.png','.gif'),array('','',''),$i);
4130                         $x = strpos($i,'-');
4131
4132                         if($x) {
4133                                 $res = substr($i,$x+1);
4134                                 $i = substr($i,0,$x);
4135                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
4136                                         dbesc($i),
4137                                         intval($res),
4138                                         intval($uid)
4139                                 );
4140                                 if($r) {
4141
4142                                         // Check to see if we should replace this photo link with an embedded image
4143                                         // 1. No need to do so if the photo is public
4144                                         // 2. If there's a contact-id provided, see if they're in the access list
4145                                         //    for the photo. If so, embed it.
4146                                         // 3. Otherwise, if we have an item, see if the item permissions match the photo
4147                                         //    permissions, regardless of order but first check to see if they're an exact
4148                                         //    match to save some processing overhead.
4149
4150                                         if(has_permissions($r[0])) {
4151                                                 if($cid) {
4152                                                         $recips = enumerate_permissions($r[0]);
4153                                                         if(in_array($cid, $recips)) {
4154                                                                 $replace = true;
4155                                                         }
4156                                                 }
4157                                                 elseif($item) {
4158                                                         if(compare_permissions($item,$r[0]))
4159                                                                 $replace = true;
4160                                                 }
4161                                         }
4162                                         if($replace) {
4163                                                 $data = $r[0]['data'];
4164                                                 $type = $r[0]['type'];
4165
4166                                                 // If a custom width and height were specified, apply before embedding
4167                                                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
4168                                                         logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
4169
4170                                                         $width = intval($match[1]);
4171                                                         $height = intval($match[2]);
4172
4173                                                         $ph = new Photo($data, $type);
4174                                                         if($ph->is_valid()) {
4175                                                                 $ph->scaleImage(max($width, $height));
4176                                                                 $data = $ph->imageString();
4177                                                                 $type = $ph->getType();
4178                                                         }
4179                                                 }
4180
4181                                                 logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
4182                                                 $image = 'data:' . $type . ';base64,' . base64_encode($data);
4183                                                 logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
4184                                         }
4185                                 }
4186                         }
4187                 }
4188
4189                 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
4190                 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
4191                 if($orig_body === false)
4192                         $orig_body = '';
4193
4194                 $img_start = strpos($orig_body, '[img');
4195                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
4196                 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
4197         }
4198
4199         $new_body = $new_body . $orig_body;
4200
4201         return($new_body);
4202 }
4203
4204
4205 function has_permissions($obj) {
4206         if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != ''))
4207                 return true;
4208         return false;
4209 }
4210
4211 function compare_permissions($obj1,$obj2) {
4212         // first part is easy. Check that these are exactly the same.
4213         if(($obj1['allow_cid'] == $obj2['allow_cid'])
4214                 && ($obj1['allow_gid'] == $obj2['allow_gid'])
4215                 && ($obj1['deny_cid'] == $obj2['deny_cid'])
4216                 && ($obj1['deny_gid'] == $obj2['deny_gid']))
4217                 return true;
4218
4219         // This is harder. Parse all the permissions and compare the resulting set.
4220
4221         $recipients1 = enumerate_permissions($obj1);
4222         $recipients2 = enumerate_permissions($obj2);
4223         sort($recipients1);
4224         sort($recipients2);
4225         if($recipients1 == $recipients2)
4226                 return true;
4227         return false;
4228 }
4229
4230 // returns an array of contact-ids that are allowed to see this object
4231
4232 function enumerate_permissions($obj) {
4233         require_once('include/group.php');
4234         $allow_people = expand_acl($obj['allow_cid']);
4235         $allow_groups = expand_groups(expand_acl($obj['allow_gid']));
4236         $deny_people  = expand_acl($obj['deny_cid']);
4237         $deny_groups  = expand_groups(expand_acl($obj['deny_gid']));
4238         $recipients   = array_unique(array_merge($allow_people,$allow_groups));
4239         $deny         = array_unique(array_merge($deny_people,$deny_groups));
4240         $recipients   = array_diff($recipients,$deny);
4241         return $recipients;
4242 }
4243
4244 function item_getfeedtags($item) {
4245         $ret = array();
4246         $matches = false;
4247         $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
4248         if($cnt) {
4249                 for($x = 0; $x < $cnt; $x ++) {
4250                         if($matches[1][$x])
4251                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
4252                 }
4253         }
4254         $matches = false;
4255         $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
4256         if($cnt) {
4257                 for($x = 0; $x < $cnt; $x ++) {
4258                         if($matches[1][$x])
4259                                 $ret[] = array('@',$matches[1][$x], $matches[2][$x]);
4260                 }
4261         }
4262         return $ret;
4263 }
4264
4265 function item_getfeedattach($item) {
4266         $ret = '';
4267         $arr = explode('[/attach],',$item['attach']);
4268         if(count($arr)) {
4269                 foreach($arr as $r) {
4270                         $matches = false;
4271                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
4272                         if($cnt) {
4273                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
4274                                 if(intval($matches[2]))
4275                                         $ret .= 'length="' . intval($matches[2]) . '" ';
4276                                 if($matches[4] !== ' ')
4277                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
4278                                 $ret .= ' />' . "\r\n";
4279                         }
4280                 }
4281         }
4282         return $ret;
4283 }
4284
4285
4286
4287 function item_expire($uid, $days, $network = "", $force = false) {
4288
4289         if((! $uid) || ($days < 1))
4290                 return;
4291
4292         // $expire_network_only = save your own wall posts
4293         // and just expire conversations started by others
4294
4295         $expire_network_only = get_pconfig($uid,'expire','network_only');
4296         $sql_extra = ((intval($expire_network_only)) ? " AND wall = 0 " : "");
4297
4298         if ($network != "") {
4299                 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
4300                 // There is an index "uid_network_received" but not "uid_network_created"
4301                 // This avoids the creation of another index just for one purpose.
4302                 // And it doesn't really matter wether to look at "received" or "created"
4303                 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
4304         } else
4305                 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
4306
4307         $r = q("SELECT * FROM `item`
4308                 WHERE `uid` = %d $range
4309                 AND `id` = `parent`
4310                 $sql_extra
4311                 AND `deleted` = 0",
4312                 intval($uid),
4313                 intval($days)
4314         );
4315
4316         if(! count($r))
4317                 return;
4318
4319         $expire_items = get_pconfig($uid, 'expire','items');
4320         $expire_items = (($expire_items===false)?1:intval($expire_items)); // default if not set: 1
4321
4322         // Forcing expiring of items - but not notes and marked items
4323         if ($force)
4324                 $expire_items = true;
4325
4326         $expire_notes = get_pconfig($uid, 'expire','notes');
4327         $expire_notes = (($expire_notes===false)?1:intval($expire_notes)); // default if not set: 1
4328
4329         $expire_starred = get_pconfig($uid, 'expire','starred');
4330         $expire_starred = (($expire_starred===false)?1:intval($expire_starred)); // default if not set: 1
4331
4332         $expire_photos = get_pconfig($uid, 'expire','photos');
4333         $expire_photos = (($expire_photos===false)?0:intval($expire_photos)); // default if not set: 0
4334
4335         logger('expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
4336
4337         foreach($r as $item) {
4338
4339                 // don't expire filed items
4340
4341                 if(strpos($item['file'],'[') !== false)
4342                         continue;
4343
4344                 // Only expire posts, not photos and photo comments
4345
4346                 if($expire_photos==0 && strlen($item['resource-id']))
4347                         continue;
4348                 if($expire_starred==0 && intval($item['starred']))
4349                         continue;
4350                 if($expire_notes==0 && $item['type']=='note')
4351                         continue;
4352                 if($expire_items==0 && $item['type']!='note')
4353                         continue;
4354
4355                 drop_item($item['id'],false);
4356         }
4357
4358         proc_run('php',"include/notifier.php","expire","$uid");
4359
4360 }
4361
4362
4363 function drop_items($items) {
4364         $uid = 0;
4365
4366         if(! local_user() && ! remote_user())
4367                 return;
4368
4369         if(count($items)) {
4370                 foreach($items as $item) {
4371                         $owner = drop_item($item,false);
4372                         if($owner && ! $uid)
4373                                 $uid = $owner;
4374                 }
4375         }
4376
4377         // multiple threads may have been deleted, send an expire notification
4378
4379         if($uid)
4380                 proc_run('php',"include/notifier.php","expire","$uid");
4381 }
4382
4383
4384 function drop_item($id,$interactive = true) {
4385
4386         $a = get_app();
4387
4388         // locate item to be deleted
4389
4390         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
4391                 intval($id)
4392         );
4393
4394         if(! count($r)) {
4395                 if(! $interactive)
4396                         return 0;
4397                 notice( t('Item not found.') . EOL);
4398                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4399         }
4400
4401         $item = $r[0];
4402
4403         $owner = $item['uid'];
4404
4405         $cid = 0;
4406
4407         // check if logged in user is either the author or owner of this item
4408
4409         if(is_array($_SESSION['remote'])) {
4410                 foreach($_SESSION['remote'] as $visitor) {
4411                         if($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
4412                                 $cid = $visitor['cid'];
4413                                 break;
4414                         }
4415                 }
4416         }
4417
4418
4419         if((local_user() == $item['uid']) || ($cid) || (! $interactive)) {
4420
4421                 // Check if we should do HTML-based delete confirmation
4422                 if($_REQUEST['confirm']) {
4423                         // <form> can't take arguments in its "action" parameter
4424                         // so add any arguments as hidden inputs
4425                         $query = explode_querystring($a->query_string);
4426                         $inputs = array();
4427                         foreach($query['args'] as $arg) {
4428                                 if(strpos($arg, 'confirm=') === false) {
4429                                         $arg_parts = explode('=', $arg);
4430                                         $inputs[] = array('name' => $arg_parts[0], 'value' => $arg_parts[1]);
4431                                 }
4432                         }
4433
4434                         return replace_macros(get_markup_template('confirm.tpl'), array(
4435                                 '$method' => 'get',
4436                                 '$message' => t('Do you really want to delete this item?'),
4437                                 '$extra_inputs' => $inputs,
4438                                 '$confirm' => t('Yes'),
4439                                 '$confirm_url' => $query['base'],
4440                                 '$confirm_name' => 'confirmed',
4441                                 '$cancel' => t('Cancel'),
4442                         ));
4443                 }
4444                 // Now check how the user responded to the confirmation query
4445                 if($_REQUEST['canceled']) {
4446                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4447                 }
4448
4449                 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
4450                 // delete the item
4451
4452                 $r = q("UPDATE `item` SET `deleted` = 1, `title` = '', `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d",
4453                         dbesc(datetime_convert()),
4454                         dbesc(datetime_convert()),
4455                         intval($item['id'])
4456                 );
4457                 create_tags_from_item($item['id']);
4458                 create_files_from_item($item['id']);
4459                 delete_thread($item['id']);
4460
4461                 // clean up categories and tags so they don't end up as orphans
4462
4463                 $matches = false;
4464                 $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
4465                 if($cnt) {
4466                         foreach($matches as $mtch) {
4467                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
4468                         }
4469                 }
4470
4471                 $matches = false;
4472
4473                 $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
4474                 if($cnt) {
4475                         foreach($matches as $mtch) {
4476                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
4477                         }
4478                 }
4479
4480                 // If item is a link to a photo resource, nuke all the associated photos
4481                 // (visitors will not have photo resources)
4482                 // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
4483                 // generate a resource-id and therefore aren't intimately linked to the item.
4484
4485                 if(strlen($item['resource-id'])) {
4486                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
4487                                 dbesc($item['resource-id']),
4488                                 intval($item['uid'])
4489                         );
4490                         // ignore the result
4491                 }
4492
4493                 // If item is a link to an event, nuke the event record.
4494
4495                 if(intval($item['event-id'])) {
4496                         q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d",
4497                                 intval($item['event-id']),
4498                                 intval($item['uid'])
4499                         );
4500                         // ignore the result
4501                 }
4502
4503                 // clean up item_id and sign meta-data tables
4504
4505                 /*
4506                 // Old code - caused very long queries and warning entries in the mysql logfiles:
4507
4508                 $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
4509                         intval($item['id']),
4510                         intval($item['uid'])
4511                 );
4512
4513                 $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
4514                         intval($item['id']),
4515                         intval($item['uid'])
4516                 );
4517                 */
4518
4519                 // The new code splits the queries since the mysql optimizer really has bad problems with subqueries
4520
4521                 // Creating list of parents
4522                 $r = q("select id from item where parent = %d and uid = %d",
4523                         intval($item['id']),
4524                         intval($item['uid'])
4525                 );
4526
4527                 $parentid = "";
4528
4529                 foreach ($r AS $row) {
4530                         if ($parentid != "")
4531                                 $parentid .= ", ";
4532
4533                         $parentid .= $row["id"];
4534                 }
4535
4536                 // Now delete them
4537                 if ($parentid != "") {
4538                         $r = q("DELETE FROM item_id where iid in (%s)", dbesc($parentid));
4539
4540                         $r = q("DELETE FROM sign where iid in (%s)", dbesc($parentid));
4541                 }
4542
4543                 // If it's the parent of a comment thread, kill all the kids
4544
4545                 if($item['uri'] == $item['parent-uri']) {
4546                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
4547                                 WHERE `parent-uri` = '%s' AND `uid` = %d ",
4548                                 dbesc(datetime_convert()),
4549                                 dbesc(datetime_convert()),
4550                                 dbesc($item['parent-uri']),
4551                                 intval($item['uid'])
4552                         );
4553                         create_tags_from_item($item['parent-uri'], $item['uid']);
4554                         create_files_from_item($item['parent-uri'], $item['uid']);
4555                         delete_thread_uri($item['parent-uri'], $item['uid']);
4556                         // ignore the result
4557                 }
4558                 else {
4559                         // ensure that last-child is set in case the comment that had it just got wiped.
4560                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
4561                                 dbesc(datetime_convert()),
4562                                 dbesc($item['parent-uri']),
4563                                 intval($item['uid'])
4564                         );
4565                         // who is the last child now?
4566                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
4567                                 dbesc($item['parent-uri']),
4568                                 intval($item['uid'])
4569                         );
4570                         if(count($r)) {
4571                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
4572                                         intval($r[0]['id'])
4573                                 );
4574                         }
4575
4576                         // Add a relayable_retraction signature for Diaspora.
4577                         store_diaspora_retract_sig($item, $a->user, $a->get_baseurl());
4578                 }
4579                 $drop_id = intval($item['id']);
4580
4581                 // send the notification upstream/downstream as the case may be
4582
4583                 proc_run('php',"include/notifier.php","drop","$drop_id");
4584
4585                 if(! $interactive)
4586                         return $owner;
4587                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4588                 //NOTREACHED
4589         }
4590         else {
4591                 if(! $interactive)
4592                         return 0;
4593                 notice( t('Permission denied.') . EOL);
4594                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4595                 //NOTREACHED
4596         }
4597
4598 }
4599
4600
4601 function first_post_date($uid,$wall = false) {
4602         $r = q("select id, created from item
4603                 where uid = %d and wall = %d and deleted = 0 and visible = 1 AND moderated = 0
4604                 and id = parent
4605                 order by created asc limit 1",
4606                 intval($uid),
4607                 intval($wall ? 1 : 0)
4608         );
4609         if(count($r)) {
4610 //              logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
4611                 return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10);
4612         }
4613         return false;
4614 }
4615
4616 function posted_dates($uid,$wall) {
4617         $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
4618
4619         $dthen = first_post_date($uid,$wall);
4620         if(! $dthen)
4621                 return array();
4622
4623         // Set the start and end date to the beginning of the month
4624         $dnow = substr($dnow,0,8).'01';
4625         $dthen = substr($dthen,0,8).'01';
4626
4627         $ret = array();
4628         // Starting with the current month, get the first and last days of every
4629         // month down to and including the month of the first post
4630         while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
4631                 $dstart = substr($dnow,0,8) . '01';
4632                 $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
4633                 $start_month = datetime_convert('','',$dstart,'Y-m-d');
4634                 $end_month = datetime_convert('','',$dend,'Y-m-d');
4635                 $str = day_translate(datetime_convert('','',$dnow,'F Y'));
4636                 $ret[] = array($str,$end_month,$start_month);
4637                 $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
4638         }
4639         return $ret;
4640 }
4641
4642
4643 function posted_date_widget($url,$uid,$wall) {
4644         $o = '';
4645
4646         if(! feature_enabled($uid,'archives'))
4647                 return $o;
4648
4649         // For former Facebook folks that left because of "timeline"
4650
4651 /*      if($wall && intval(get_pconfig($uid,'system','no_wall_archive_widget')))
4652                 return $o;*/
4653
4654         $ret = posted_dates($uid,$wall);
4655         if(! count($ret))
4656                 return $o;
4657
4658         $o = replace_macros(get_markup_template('posted_date_widget.tpl'),array(
4659                 '$title' => t('Archives'),
4660                 '$size' => ((count($ret) > 6) ? 6 : count($ret)),
4661                 '$url' => $url,
4662                 '$dates' => $ret
4663         ));
4664         return $o;
4665 }
4666
4667 function store_diaspora_retract_sig($item, $user, $baseurl) {
4668         // Note that we can't add a target_author_signature
4669         // if the comment was deleted by a remote user. That should be ok, because if a remote user is deleting
4670         // the comment, that means we're the home of the post, and Diaspora will only
4671         // check the parent_author_signature of retractions that it doesn't have to relay further
4672         //
4673         // I don't think this function gets called for an "unlike," but I'll check anyway
4674
4675         $enabled = intval(get_config('system','diaspora_enabled'));
4676         if(! $enabled) {
4677                 logger('drop_item: diaspora support disabled, not storing retraction signature', LOGGER_DEBUG);
4678                 return;
4679         }
4680
4681         logger('drop_item: storing diaspora retraction signature');
4682
4683         $signed_text = $item['guid'] . ';' . ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
4684
4685         if(local_user() == $item['uid']) {
4686
4687                 $handle = $user['nickname'] . '@' . substr($baseurl, strpos($baseurl,'://') + 3);
4688                 $authorsig = base64_encode(rsa_sign($signed_text,$user['prvkey'],'sha256'));
4689         }
4690         else {
4691                 $r = q("SELECT `nick`, `url` FROM `contact` WHERE `id` = '%d' LIMIT 1",
4692                         $item['contact-id'] // If this function gets called, drop_item() has already checked remote_user() == $item['contact-id']
4693                 );
4694                 if(count($r)) {
4695                         // The below handle only works for NETWORK_DFRN. I think that's ok, because this function
4696                         // only handles DFRN deletes
4697                         $handle_baseurl_start = strpos($r['url'],'://') + 3;
4698                         $handle_baseurl_length = strpos($r['url'],'/profile') - $handle_baseurl_start;
4699                         $handle = $r['nick'] . '@' . substr($r['url'], $handle_baseurl_start, $handle_baseurl_length);
4700                         $authorsig = '';
4701                 }
4702         }
4703
4704         if(isset($handle))
4705                 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
4706                         intval($item['id']),
4707                         dbesc($signed_text),
4708                         dbesc($authorsig),
4709                         dbesc($handle)
4710                 );
4711
4712         return;
4713 }