include/items.php

   1 <?php
   2
   3 require_once('include/bbcode.php');
   4 require_once('include/oembed.php');
   5 require_once('include/salmon.php');
   6 require_once('include/crypto.php');
   7 require_once('include/Photo.php');
   8
   9
  10 function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
  11
  12
  13         $sitefeed    = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
  14         $public_feed = (($dfrn_id) ? false : true);
  15         $starred     = false;   // not yet implemented, possible security issues
  16         $converse    = false;
  17
  18         if($public_feed && $a->argc > 2) {
  19                 for($x = 2; $x < $a->argc; $x++) {
  20                         if($a->argv[$x] == 'converse')
  21                                 $converse = true;
  22                         if($a->argv[$x] == 'starred')
  23                                 $starred = true;
  24                         if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
  25                                 $category = $a->argv[$x+1];
  26                 }
  27         }
  28
  29
  30
  31         // default permissions - anonymous user
  32
  33         $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid`  = '' AND `deny_gid`  = '' ";
  34
  35         $r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
  36                 FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
  37                 WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
  38                 dbesc($owner_nick)
  39         );
  40
  41         if(! count($r))
  42                 killme();
  43
  44         $owner = $r[0];
  45         $owner_id = $owner['user_uid'];
  46         $owner_nick = $owner['nickname'];
  47
  48         $birthday = feed_birthday($owner_id,$owner['timezone']);
  49
  50         if(! $public_feed) {
  51
  52                 $sql_extra = '';
  53                 switch($direction) {
  54                         case (-1):
  55                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
  56                                 $my_id = $dfrn_id;
  57                                 break;
  58                         case 0:
  59                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  60                                 $my_id = '1:' . $dfrn_id;
  61                                 break;
  62                         case 1:
  63                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  64                                 $my_id = '0:' . $dfrn_id;
  65                                 break;
  66                         default:
  67                                 return false;
  68                                 break; // NOTREACHED
  69                 }
  70
  71                 $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
  72                         intval($owner_id)
  73                 );
  74
  75                 if(! count($r))
  76                         killme();
  77
  78                 $contact = $r[0];
  79                 $groups = init_groups_visitor($contact['id']);
  80
  81                 if(count($groups)) {
  82                         for($x = 0; $x < count($groups); $x ++)
  83                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  84                         $gs = implode('|', $groups);
  85                 }
  86                 else
  87                         $gs = '<<>>' ; // Impossible to match
  88
  89                 $sql_extra = sprintf("
  90                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
  91                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
  92                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
  93                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
  94                 ",
  95                         intval($contact['id']),
  96                         intval($contact['id']),
  97                         dbesc($gs),
  98                         dbesc($gs)
  99                 );
 100         }
 101
 102         if($public_feed)
 103                 $sort = 'DESC';
 104         else
 105                 $sort = 'ASC';
 106
 107         if(! strlen($last_update))
 108                 $last_update = 'now -30 days';
 109
 110         if(isset($category)) {
 111                 $sql_extra .= file_tag_file_query('item',$category,'category');
 112         }
 113
 114         if($public_feed) {
 115                 if(! $converse)
 116                         $sql_extra .= " AND `contact`.`self` = 1 ";
 117         }
 118
 119         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
 120
 121         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
 122                 `contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
 123                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
 124                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
 125                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
 126                 `sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
 127                 FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 128                 LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
 129                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
 130                 AND `item`.`wall` = 1 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 131                 AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
 132                 $sql_extra
 133                 ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
 134                 intval($owner_id),
 135                 dbesc($check_date),
 136                 dbesc($check_date),
 137                 dbesc($sort)
 138         );
 139
 140         // Will check further below if this actually returned results.
 141         // We will provide an empty feed if that is the case.
 142
 143         $items = $r;
 144
 145         $feed_template = get_markup_template(($dfrn_id) ? 'atom_feed_dfrn.tpl' : 'atom_feed.tpl');
 146
 147         $atom = '';
 148
 149         $hubxml = feed_hublinks();
 150
 151         $salmon = feed_salmonlinks($owner_nick);
 152
 153         $atom .= replace_macros($feed_template, array(
 154                 '$version'      => xmlify(FRIENDICA_VERSION),
 155                 '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 156                 '$feed_title'   => xmlify($owner['name']),
 157                 '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
 158                 '$hub'          => $hubxml,
 159                 '$salmon'       => $salmon,
 160                 '$name'         => xmlify($owner['name']),
 161                 '$profile_page' => xmlify($owner['url']),
 162                 '$photo'        => xmlify($owner['photo']),
 163                 '$thumb'        => xmlify($owner['thumb']),
 164                 '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 165                 '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 166                 '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 167                 '$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : ''),
 168                 '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 169         ));
 170
 171         call_hooks('atom_feed', $atom);
 172
 173         if(! count($items)) {
 174
 175                 call_hooks('atom_feed_end', $atom);
 176
 177                 $atom .= '</feed>' . "\r\n";
 178                 return $atom;
 179         }
 180
 181         foreach($items as $item) {
 182
 183                 // prevent private email from leaking.
 184                 if($item['network'] === NETWORK_MAIL)
 185                         continue;
 186
 187                 // public feeds get html, our own nodes use bbcode
 188
 189                 if($public_feed) {
 190                         $type = 'html';
 191                         // catch any email that's in a public conversation and make sure it doesn't leak
 192                         if($item['private'])
 193                                 continue;
 194                 }
 195                 else {
 196                         $type = 'text';
 197                 }
 198
 199                 $atom .= atom_entry($item,$type,null,$owner,true);
 200         }
 201
 202         call_hooks('atom_feed_end', $atom);
 203
 204         $atom .= '</feed>' . "\r\n";
 205
 206         return $atom;
 207 }
 208
 209
 210 function construct_verb($item) {
 211         if($item['verb'])
 212                 return $item['verb'];
 213         return ACTIVITY_POST;
 214 }
 215
 216 function construct_activity_object($item) {
 217
 218         if($item['object']) {
 219                 $o = '<as:object>' . "\r\n";
 220                 $r = parse_xml_string($item['object'],false);
 221
 222
 223                 if(! $r)
 224                         return '';
 225                 if($r->type)
 226                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 227                 if($r->id)
 228                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 229                 if($r->title)
 230                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 231                 if($r->link) {
 232                         if(substr($r->link,0,1) === '<') {
 233                                 // patch up some facebook "like" activity objects that got stored incorrectly
 234                                 // for a couple of months prior to 9-Jun-2011 and generated bad XML.
 235                                 // we can probably remove this hack here and in the following function in a few months time.
 236                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 237                                         $r->link = str_replace('&','&amp;', $r->link);
 238                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 239                                 $o .= $r->link;
 240                         }
 241                         else
 242                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 243                 }
 244                 if($r->content)
 245                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 246                 $o .= '</as:object>' . "\r\n";
 247                 return $o;
 248         }
 249
 250         return '';
 251 }
 252
 253 function construct_activity_target($item) {
 254
 255         if($item['target']) {
 256                 $o = '<as:target>' . "\r\n";
 257                 $r = parse_xml_string($item['target'],false);
 258                 if(! $r)
 259                         return '';
 260                 if($r->type)
 261                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 262                 if($r->id)
 263                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 264                 if($r->title)
 265                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 266                 if($r->link) {
 267                         if(substr($r->link,0,1) === '<') {
 268                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 269                                         $r->link = str_replace('&','&amp;', $r->link);
 270                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 271                                 $o .= $r->link;
 272                         }
 273                         else
 274                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 275                 }
 276                 if($r->content)
 277                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 278                 $o .= '</as:target>' . "\r\n";
 279                 return $o;
 280         }
 281
 282         return '';
 283 }
 284
 285 /* limit_body_size()
 286  *
 287  *              The purpose of this function is to apply system message length limits to
 288  *              imported messages without including any embedded photos in the length
 289  */
 290 if(! function_exists('limit_body_size')) {
 291 function limit_body_size($body) {
 292
 293         logger('limit_body_size: start', LOGGER_DEBUG);
 294
 295         $maxlen = get_max_import_size();
 296
 297         // If the length of the body, including the embedded images, is smaller
 298         // than the maximum, then don't waste time looking for the images
 299         if($maxlen && (strlen($body) > $maxlen)) {
 300
 301                 logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
 302
 303                 $orig_body = $body;
 304                 $new_body = '';
 305                 $textlen = 0;
 306                 $max_found = false;
 307
 308                 $img_start = strpos($orig_body, '[img');
 309                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 310                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 311                 while(($img_st_close !== false) && ($img_end !== false)) {
 312
 313                         $img_st_close++; // make it point to AFTER the closing bracket
 314                         $img_end += $img_start;
 315                         $img_end += strlen('[/img]');
 316
 317                         if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 318                                 // This is an embedded image
 319
 320                                 if( ($textlen + $img_start) > $maxlen ) {
 321                                         if($textlen < $maxlen) {
 322                                                 logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
 323                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 324                                                 $textlen = $maxlen;
 325                                         }
 326                                 }
 327                                 else {
 328                                         $new_body = $new_body . substr($orig_body, 0, $img_start);
 329                                         $textlen += $img_start;
 330                                 }
 331
 332                                 $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
 333                         }
 334                         else {
 335
 336                                 if( ($textlen + $img_end) > $maxlen ) {
 337                                         if($textlen < $maxlen) {
 338                                                 logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
 339                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 340                                                 $textlen = $maxlen;
 341                                         }
 342                                 }
 343                                 else {
 344                                         $new_body = $new_body . substr($orig_body, 0, $img_end);
 345                                         $textlen += $img_end;
 346                                 }
 347                         }
 348                         $orig_body = substr($orig_body, $img_end);
 349
 350                         if($orig_body === false) // in case the body ends on a closing image tag
 351                                 $orig_body = '';
 352
 353                         $img_start = strpos($orig_body, '[img');
 354                         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 355                         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 356                 }
 357
 358                 if( ($textlen + strlen($orig_body)) > $maxlen) {
 359                         if($textlen < $maxlen) {
 360                                 logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
 361                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 362                                 $textlen = $maxlen;
 363                         }
 364                 }
 365                 else {
 366                         logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
 367                         $new_body = $new_body . $orig_body;
 368                         $textlen += strlen($orig_body);
 369                 }
 370
 371                 return $new_body;
 372         }
 373         else
 374                 return $body;
 375 }}
 376
 377 function title_is_body($title, $body) {
 378
 379         $title = strip_tags($title);
 380         $title = trim($title);
 381         $title = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $title);
 382
 383         $body = strip_tags($body);
 384         $body = trim($body);
 385         $body = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $body);
 386
 387         if (strlen($title) < strlen($body))
 388                 $body = substr($body, 0, strlen($title));
 389
 390         if (($title != $body) and (substr($title, -3) == "...")) {
 391                 $pos = strrpos($title, "...");
 392                 if ($pos > 0) {
 393                         $title = substr($title, 0, $pos);
 394                         $body = substr($body, 0, $pos);
 395                 }
 396         }
 397
 398         return($title == $body);
 399 }
 400
 401
 402
 403 function get_atom_elements($feed,$item) {
 404
 405         require_once('library/HTMLPurifier.auto.php');
 406         require_once('include/html2bbcode.php');
 407
 408         $best_photo = array();
 409
 410         $res = array();
 411
 412         $author = $item->get_author();
 413         if($author) {
 414                 $res['author-name'] = unxmlify($author->get_name());
 415                 $res['author-link'] = unxmlify($author->get_link());
 416         }
 417         else {
 418                 $res['author-name'] = unxmlify($feed->get_title());
 419                 $res['author-link'] = unxmlify($feed->get_permalink());
 420         }
 421         $res['uri'] = unxmlify($item->get_id());
 422         $res['title'] = unxmlify($item->get_title());
 423         $res['body'] = unxmlify($item->get_content());
 424         $res['plink'] = unxmlify($item->get_link(0));
 425
 426         // removing the content of the title if its identically to the body
 427         // This helps with auto generated titles e.g. from tumblr
 428         if (title_is_body($res["title"], $res["body"]))
 429                 $res['title'] = "";
 430
 431         if($res['plink'])
 432                 $base_url = implode('/', array_slice(explode('/',$res['plink']),0,3));
 433         else
 434                 $base_url = '';
 435
 436         // look for a photo. We should check media size and find the best one,
 437         // but for now let's just find any author photo
 438
 439         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 440
 441         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 442                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 443                 foreach($base as $link) {
 444                         if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 445                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 446                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 447                         }
 448                 }
 449         }
 450
 451         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 452
 453         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 454                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 455                 if($base && count($base)) {
 456                         foreach($base as $link) {
 457                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 458                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 459                                 if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 460                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 461                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 462                                 }
 463                         }
 464                 }
 465         }
 466
 467         // No photo/profile-link on the item - look at the feed level
 468
 469         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 470                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 471                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 472                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 473                         foreach($base as $link) {
 474                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 475                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 476                                 if(! $res['author-avatar']) {
 477                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 478                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 479                                 }
 480                         }
 481                 }
 482
 483                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 484
 485                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 486                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 487
 488                         if($base && count($base)) {
 489                                 foreach($base as $link) {
 490                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 491                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 492                                         if(! (x($res,'author-avatar'))) {
 493                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 494                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 495                                         }
 496                                 }
 497                         }
 498                 }
 499         }
 500
 501         $apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info');
 502         if($apps && $apps[0]['attribs']['']['source']) {
 503                 $res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source']));
 504                 if($res['app'] === 'web')
 505                         $res['app'] = 'OStatus';
 506         }
 507
 508         // base64 encoded json structure representing Diaspora signature
 509
 510         $dsig = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_signature');
 511         if($dsig) {
 512                 $res['dsprsig'] = unxmlify($dsig[0]['data']);
 513         }
 514
 515         $dguid = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_guid');
 516         if($dguid)
 517                 $res['guid'] = unxmlify($dguid[0]['data']);
 518
 519         $bm = $item->get_item_tags(NAMESPACE_DFRN,'bookmark');
 520         if($bm)
 521                 $res['bookmark'] = ((unxmlify($bm[0]['data']) === 'true') ? 1 : 0);
 522
 523
 524         /**
 525          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 526          */
 527
 528         $have_real_body = false;
 529
 530         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 531         if($rawenv) {
 532                 $have_real_body = true;
 533                 $res['body'] = $rawenv[0]['data'];
 534                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 535                 // make sure nobody is trying to sneak some html tags by us
 536                 $res['body'] = notags(base64url_decode($res['body']));
 537         }
 538
 539
 540         $res['body'] = limit_body_size($res['body']);
 541
 542         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 543         // the content type. Our own network only emits text normally, though it might have been converted to
 544         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 545         // have to assume it is all html and needs to be purified.
 546
 547         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 548         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 549         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 550         // html.
 551
 552         if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) {
 553
 554                 $res['body'] = reltoabs($res['body'],$base_url);
 555
 556                 $res['body'] = html2bb_video($res['body']);
 557
 558                 $res['body'] = oembed_html2bbcode($res['body']);
 559
 560                 $config = HTMLPurifier_Config::createDefault();
 561                 $config->set('Cache.DefinitionImpl', null);
 562
 563                 // we shouldn't need a whitelist, because the bbcode converter
 564                 // will strip out any unsupported tags.
 565
 566                 $purifier = new HTMLPurifier($config);
 567                 $res['body'] = $purifier->purify($res['body']);
 568
 569                 $res['body'] = @html2bbcode($res['body']);
 570
 571
 572         }
 573         elseif(! $have_real_body) {
 574
 575                 // it's not one of our messages and it has no tags
 576                 // so it's probably just text. We'll escape it just to be safe.
 577
 578                 $res['body'] = escape_tags($res['body']);
 579         }
 580
 581
 582         // this tag is obsolete but we keep it for really old sites
 583
 584         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 585         if($allow && $allow[0]['data'] == 1)
 586                 $res['last-child'] = 1;
 587         else
 588                 $res['last-child'] = 0;
 589
 590         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 591         if($private && intval($private[0]['data']) > 0)
 592                 $res['private'] = intval($private[0]['data']);
 593         else
 594                 $res['private'] = 0;
 595
 596         $extid = $item->get_item_tags(NAMESPACE_DFRN,'extid');
 597         if($extid && $extid[0]['data'])
 598                 $res['extid'] = $extid[0]['data'];
 599
 600         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 601         if($rawlocation)
 602                 $res['location'] = unxmlify($rawlocation[0]['data']);
 603
 604
 605         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 606         if($rawcreated)
 607                 $res['created'] = unxmlify($rawcreated[0]['data']);
 608
 609
 610         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 611         if($rawedited)
 612                 $res['edited'] = unxmlify($rawedited[0]['data']);
 613
 614         if((x($res,'edited')) && (! (x($res,'created'))))
 615                 $res['created'] = $res['edited'];
 616
 617         if(! $res['created'])
 618                 $res['created'] = $item->get_date('c');
 619
 620         if(! $res['edited'])
 621                 $res['edited'] = $item->get_date('c');
 622
 623
 624         // Disallow time travelling posts
 625
 626         $d1 = strtotime($res['created']);
 627         $d2 = strtotime($res['edited']);
 628         $d3 = strtotime('now');
 629
 630         if($d1 > $d3)
 631                 $res['created'] = datetime_convert();
 632         if($d2 > $d3)
 633                 $res['edited'] = datetime_convert();
 634
 635         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 636         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 637                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 638         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 639                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 640         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 641                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 642         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 643                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 644
 645         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 646                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 647
 648                 foreach($base as $link) {
 649                         if(!x($res, 'owner-avatar') || !$res['owner-avatar']) {
 650                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 651                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 652                         }
 653                 }
 654         }
 655
 656         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 657         if($rawgeo)
 658                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 659
 660
 661         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 662
 663         // select between supported verbs
 664
 665         if($rawverb) {
 666                 $res['verb'] = unxmlify($rawverb[0]['data']);
 667         }
 668
 669         // translate OStatus unfollow to activity streams if it happened to get selected
 670
 671         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 672                 $res['verb'] = ACTIVITY_UNFOLLOW;
 673
 674         $cats = $item->get_categories();
 675         if($cats) {
 676                 $tag_arr = array();
 677                 foreach($cats as $cat) {
 678                         $term = $cat->get_term();
 679                         if(! $term)
 680                                 $term = $cat->get_label();
 681                         $scheme = $cat->get_scheme();
 682                         if($scheme && $term && stristr($scheme,'X-DFRN:'))
 683                                 $tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
 684                         elseif($term)
 685                                 $tag_arr[] = notags(trim($term));
 686                 }
 687                 $res['tag'] =  implode(',', $tag_arr);
 688         }
 689
 690         $attach = $item->get_enclosures();
 691         if($attach) {
 692                 $att_arr = array();
 693                 foreach($attach as $att) {
 694                         $len   = intval($att->get_length());
 695                         $link  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
 696                         $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
 697                         $type  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
 698                         if(strpos($type,';'))
 699                                 $type = substr($type,0,strpos($type,';'));
 700                         if((! $link) || (strpos($link,'http') !== 0))
 701                                 continue;
 702
 703                         if(! $title)
 704                                 $title = ' ';
 705                         if(! $type)
 706                                 $type = 'application/octet-stream';
 707
 708                         $att_arr[] = '[attach]href="' . $link . '" length="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
 709                 }
 710                 $res['attach'] = implode(',', $att_arr);
 711         }
 712
 713         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 714
 715         if($rawobj) {
 716                 $res['object'] = '<object>' . "\n";
 717                 $child = $rawobj[0]['child'];
 718                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 719                         $res['object-type'] = $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 720                         $res['object'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 721                 }
 722                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 723                         $res['object'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 724                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 725                         $res['object'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 726                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 727                         $res['object'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 728                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 729                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 730                         if(! $body)
 731                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 732                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 733                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 734                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 735
 736                                 $body = html2bb_video($body);
 737
 738                                 $config = HTMLPurifier_Config::createDefault();
 739                                 $config->set('Cache.DefinitionImpl', null);
 740
 741                                 $purifier = new HTMLPurifier($config);
 742                                 $body = $purifier->purify($body);
 743                                 $body = html2bbcode($body);
 744                         }
 745
 746                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 747                 }
 748
 749                 $res['object'] .= '</object>' . "\n";
 750         }
 751
 752         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 753
 754         if($rawobj) {
 755                 $res['target'] = '<target>' . "\n";
 756                 $child = $rawobj[0]['child'];
 757                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 758                         $res['target'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 759                 }
 760                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 761                         $res['target'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 762                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 763                         $res['target'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 764                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 765                         $res['target'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 766                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 767                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 768                         if(! $body)
 769                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 770                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 771                         $res['target'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 772                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 773
 774                                 $body = html2bb_video($body);
 775
 776                                 $config = HTMLPurifier_Config::createDefault();
 777                                 $config->set('Cache.DefinitionImpl', null);
 778
 779                                 $purifier = new HTMLPurifier($config);
 780                                 $body = $purifier->purify($body);
 781                                 $body = html2bbcode($body);
 782                         }
 783
 784                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 785                 }
 786
 787                 $res['target'] .= '</target>' . "\n";
 788         }
 789
 790         // This is some experimental stuff. By now retweets are shown with "RT:"
 791         // But: There is data so that the message could be shown similar to native retweets
 792         // There is some better way to parse this array - but it didn't worked for me.
 793         $child = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://activitystrea.ms/spec/1.0/"][object][0]["child"];
 794         if (is_array($child)) {
 795                 $message = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["content"][0]["data"];
 796                 $author = $child[SIMPLEPIE_NAMESPACE_ATOM_10]["author"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10];
 797                 $uri = $author["uri"][0]["data"];
 798                 $name = $author["name"][0]["data"];
 799                 $avatar = @array_shift($author["link"][2]["attribs"]);
 800                 $avatar = $avatar["href"];
 801
 802                 if (($name != "") and ($uri != "") and ($avatar != "") and ($message != "")) {
 803                         $res["owner-name"] = $res["author-name"];
 804                         $res["owner-link"] = $res["author-link"];
 805                         $res["owner-avatar"] = $res["author-avatar"];
 806
 807                         $res["author-name"] = $name;
 808                         $res["author-link"] = $uri;
 809                         $res["author-avatar"] = $avatar;
 810
 811                         $res["body"] = html2bbcode($message);
 812                 }
 813         }
 814
 815         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 816
 817         call_hooks('parse_atom', $arr);
 818
 819         //if (($res["title"] != "") or (strpos($res["body"], "RT @") > 0)) {
 820         //if (strpos($res["body"], "RT @") !== false) {
 821         //      $debugfile = tempnam("/home/ike/log", "item-res2-");
 822         //      file_put_contents($debugfile, serialize($arr));
 823         //}
 824
 825         return $res;
 826 }
 827
 828 function encode_rel_links($links) {
 829         $o = '';
 830         if(! ((is_array($links)) && (count($links))))
 831                 return $o;
 832         foreach($links as $link) {
 833                 $o .= '<link ';
 834                 if($link['attribs']['']['rel'])
 835                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
 836                 if($link['attribs']['']['type'])
 837                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
 838                 if($link['attribs']['']['href'])
 839                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
 840                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
 841                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
 842                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
 843                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
 844                 $o .= ' />' . "\n" ;
 845         }
 846         return xmlify($o);
 847 }
 848
 849
 850
 851 function item_store($arr,$force_parent = false) {
 852
 853         // If a Diaspora signature structure was passed in, pull it out of the
 854         // item array and set it aside for later storage.
 855
 856         $dsprsig = null;
 857         if(x($arr,'dsprsig')) {
 858                 $dsprsig = json_decode(base64_decode($arr['dsprsig']));
 859                 unset($arr['dsprsig']);
 860         }
 861
 862         if(x($arr, 'gravity'))
 863                 $arr['gravity'] = intval($arr['gravity']);
 864         elseif($arr['parent-uri'] === $arr['uri'])
 865                 $arr['gravity'] = 0;
 866         elseif(activity_match($arr['verb'],ACTIVITY_POST))
 867                 $arr['gravity'] = 6;
 868         else
 869                 $arr['gravity'] = 6;   // extensible catchall
 870
 871         if(! x($arr,'type'))
 872                 $arr['type']      = 'remote';
 873
 874         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
 875
 876         if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
 877                 $arr['body'] = strip_tags($arr['body']);
 878
 879
 880         if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
 881                 require_once('Text/LanguageDetect.php');
 882                 $naked_body = preg_replace('/\[(.+?)\]/','',$arr['body']);
 883                 $l = new Text_LanguageDetect;
 884                 $lng = $l->detectConfidence($naked_body);
 885                 $arr['postopts'] = (($lng['language']) ? 'lang=' . $lng['language'] . ';' . $lng['confidence'] : '');
 886         }
 887
 888         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
 889         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
 890         $arr['extid']         = ((x($arr,'extid'))         ? notags(trim($arr['extid']))         : '');
 891         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
 892         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
 893         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
 894         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
 895         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
 896         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
 897         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
 898         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
 899         $arr['commented']     = datetime_convert();
 900         $arr['received']      = datetime_convert();
 901         $arr['changed']       = datetime_convert();
 902         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
 903         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
 904         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
 905         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
 906         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
 907         $arr['deleted']       = 0;
 908         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
 909         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
 910         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
 911         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
 912         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
 913         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
 914         $arr['plink']         = ((x($arr,'plink'))         ? notags(trim($arr['plink']))         : '');
 915         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
 916         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
 917         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
 918         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
 919         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
 920         $arr['bookmark']      = ((x($arr,'bookmark'))      ? intval($arr['bookmark'])            : 0 );
 921         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
 922         $arr['tag']           = ((x($arr,'tag'))           ? notags(trim($arr['tag']))           : '');
 923         $arr['attach']        = ((x($arr,'attach'))        ? notags(trim($arr['attach']))        : '');
 924         $arr['app']           = ((x($arr,'app'))           ? notags(trim($arr['app']))           : '');
 925         $arr['origin']        = ((x($arr,'origin'))        ? intval($arr['origin'])              : 0 );
 926         $arr['guid']          = ((x($arr,'guid'))          ? notags(trim($arr['guid']))          : get_guid());
 927
 928
 929         $arr['thr-parent'] = $arr['parent-uri'];
 930         if($arr['parent-uri'] === $arr['uri']) {
 931                 $parent_id = 0;
 932                 $parent_deleted = 0;
 933                 $allow_cid = $arr['allow_cid'];
 934                 $allow_gid = $arr['allow_gid'];
 935                 $deny_cid  = $arr['deny_cid'];
 936                 $deny_gid  = $arr['deny_gid'];
 937         }
 938         else {
 939
 940                 // find the parent and snarf the item id and ACL's
 941                 // and anything else we need to inherit
 942
 943                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
 944                         dbesc($arr['parent-uri']),
 945                         intval($arr['uid'])
 946                 );
 947
 948                 if(count($r)) {
 949
 950                         // is the new message multi-level threaded?
 951                         // even though we don't support it now, preserve the info
 952                         // and re-attach to the conversation parent.
 953
 954                         if($r[0]['uri'] != $r[0]['parent-uri']) {
 955                                 $arr['parent-uri'] = $r[0]['parent-uri'];
 956                                 $z = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `parent-uri` = '%s' AND `uid` = %d
 957                                         ORDER BY `id` ASC LIMIT 1",
 958                                         dbesc($r[0]['parent-uri']),
 959                                         dbesc($r[0]['parent-uri']),
 960                                         intval($arr['uid'])
 961                                 );
 962                                 if($z && count($z))
 963                                         $r = $z;
 964                         }
 965
 966                         $parent_id      = $r[0]['id'];
 967                         $parent_deleted = $r[0]['deleted'];
 968                         $allow_cid      = $r[0]['allow_cid'];
 969                         $allow_gid      = $r[0]['allow_gid'];
 970                         $deny_cid       = $r[0]['deny_cid'];
 971                         $deny_gid       = $r[0]['deny_gid'];
 972                         $arr['wall']    = $r[0]['wall'];
 973
 974                         // if the parent is private, force privacy for the entire conversation
 975                         // This differs from the above settings as it subtly allows comments from
 976                         // email correspondents to be private even if the overall thread is not.
 977
 978                         if($r[0]['private'])
 979                                 $arr['private'] = $r[0]['private'];
 980
 981                         // Edge case. We host a public forum that was originally posted to privately.
 982                         // The original author commented, but as this is a comment, the permissions
 983                         // weren't fixed up so it will still show the comment as private unless we fix it here.
 984
 985                         if((intval($r[0]['forum_mode']) == 1) && (! $r[0]['private']))
 986                                 $arr['private'] = 0;
 987                 }
 988                 else {
 989
 990                         // Allow one to see reply tweets from status.net even when
 991                         // we don't have or can't see the original post.
 992
 993                         if($force_parent) {
 994                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
 995                                 $parent_id = 0;
 996                                 $arr['parent-uri'] = $arr['uri'];
 997                                 $arr['gravity'] = 0;
 998                         }
 999                         else {
1000                                 logger('item_store: item parent was not found - ignoring item');
1001                                 return 0;
1002                         }
1003
1004                         $parent_deleted = 0;
1005                 }
1006         }
1007
1008         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1009                 dbesc($arr['uri']),
1010                 intval($arr['uid'])
1011         );
1012         if($r && count($r)) {
1013                 logger('item-store: duplicate item ignored. ' . print_r($arr,true));
1014                 return 0;
1015         }
1016
1017         call_hooks('post_remote',$arr);
1018
1019         if(x($arr,'cancel')) {
1020                 logger('item_store: post cancelled by plugin.');
1021                 return 0;
1022         }
1023
1024         dbesc_array($arr);
1025
1026         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
1027
1028         $r = dbq("INSERT INTO `item` (`"
1029                         . implode("`, `", array_keys($arr))
1030                         . "`) VALUES ('"
1031                         . implode("', '", array_values($arr))
1032                         . "')" );
1033
1034         // find the item we just created
1035
1036         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC ",
1037                 $arr['uri'],           // already dbesc'd
1038                 intval($arr['uid'])
1039         );
1040
1041         if(count($r)) {
1042                 $current_post = $r[0]['id'];
1043                 logger('item_store: created item ' . $current_post);
1044         }
1045         else {
1046                 logger('item_store: could not locate created item');
1047                 return 0;
1048         }
1049         if(count($r) > 1) {
1050                 logger('item_store: duplicated post occurred. Removing duplicates.');
1051                 q("DELETE FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `id` != %d ",
1052                         $arr['uri'],
1053                         intval($arr['uid']),
1054                         intval($current_post)
1055                 );
1056         }
1057
1058         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
1059                 $parent_id = $current_post;
1060
1061         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
1062                 $private = 1;
1063         else
1064                 $private = $arr['private'];
1065
1066         // Set parent id - and also make sure to inherit the parent's ACL's.
1067
1068         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
1069                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d LIMIT 1",
1070                 intval($parent_id),
1071                 dbesc($allow_cid),
1072                 dbesc($allow_gid),
1073                 dbesc($deny_cid),
1074                 dbesc($deny_gid),
1075                 intval($private),
1076                 intval($parent_deleted),
1077                 intval($current_post)
1078         );
1079
1080         $arr['id'] = $current_post;
1081         $arr['parent'] = $parent_id;
1082         $arr['allow_cid'] = $allow_cid;
1083         $arr['allow_gid'] = $allow_gid;
1084         $arr['deny_cid'] = $deny_cid;
1085         $arr['deny_gid'] = $deny_gid;
1086         $arr['private'] = $private;
1087         $arr['deleted'] = $parent_deleted;
1088         call_hooks('post_remote_end',$arr);
1089
1090         // update the commented timestamp on the parent
1091
1092         q("UPDATE `item` set `commented` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
1093                 dbesc(datetime_convert()),
1094                 dbesc(datetime_convert()),
1095                 intval($parent_id)
1096         );
1097
1098         if($dsprsig) {
1099                 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1100                         intval($current_post),
1101                         dbesc($dsprsig->signed_text),
1102                         dbesc($dsprsig->signature),
1103                         dbesc($dsprsig->signer)
1104                 );
1105         }
1106
1107
1108         /**
1109          * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
1110          */
1111
1112         if($arr['last-child']) {
1113                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
1114                         dbesc($arr['uri']),
1115                         intval($arr['uid']),
1116                         intval($current_post)
1117                 );
1118         }
1119
1120         tag_deliver($arr['uid'],$current_post);
1121
1122         return $current_post;
1123 }
1124
1125 function get_item_contact($item,$contacts) {
1126         if(! count($contacts) || (! is_array($item)))
1127                 return false;
1128         foreach($contacts as $contact) {
1129                 if($contact['id'] == $item['contact-id']) {
1130                         return $contact;
1131                         break; // NOTREACHED
1132                 }
1133         }
1134         return false;
1135 }
1136
1137
1138 function tag_deliver($uid,$item_id) {
1139
1140         // look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1141
1142         $a = get_app();
1143
1144         $mention = false;
1145
1146         $u = q("select * from user where uid = %d limit 1",
1147                 intval($uid)
1148         );
1149         if(! count($u))
1150                 return;
1151
1152         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1153         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1154
1155
1156         $i = q("select * from item where id = %d and uid = %d limit 1",
1157                 intval($item_id),
1158                 intval($uid)
1159         );
1160         if(! count($i))
1161                 return;
1162
1163         $item = $i[0];
1164
1165         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1166
1167         // Diaspora uses their own hardwired link URL in @-tags
1168         // instead of the one we supply with webfinger
1169
1170         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1171
1172         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1173         if($cnt) {
1174                 foreach($matches as $mtch) {
1175                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1176                                 $mention = true;
1177                                 logger('tag_deliver: mention found: ' . $mtch[2]);
1178                         }
1179                 }
1180         }
1181
1182         if(! $mention)
1183                 return;
1184
1185         // send a notification
1186
1187         // use a local photo if we have one
1188
1189         $r = q("select * from contact where uid = %d and nurl = '%s' limit 1",
1190                 intval($u[0]['uid']),
1191                 dbesc(normalise_link($item['author-link']))
1192         );
1193         $photo = (($r && count($r)) ? $r[0]['thumb'] : $item['author-avatar']);
1194
1195
1196         require_once('include/enotify.php');
1197         notification(array(
1198                 'type'         => NOTIFY_TAGSELF,
1199                 'notify_flags' => $u[0]['notify-flags'],
1200                 'language'     => $u[0]['language'],
1201                 'to_name'      => $u[0]['username'],
1202                 'to_email'     => $u[0]['email'],
1203                 'uid'          => $u[0]['uid'],
1204                 'item'         => $item,
1205                 'link'         => $a->get_baseurl() . '/display/' . $u[0]['nickname'] . '/' . $item['id'],
1206                 'source_name'  => $item['author-name'],
1207                 'source_link'  => $item['author-link'],
1208                 'source_photo' => $photo,
1209                 'verb'         => ACTIVITY_TAG,
1210                 'otype'        => 'item'
1211         ));
1212
1213
1214         $arr = array('item' => $item, 'user' => $u[0], 'contact' => $r[0]);
1215
1216         call_hooks('tagged', $arr);
1217
1218         if((! $community_page) && (! $prvgroup))
1219                 return;
1220
1221
1222         // tgroup delivery - setup a second delivery chain
1223         // prevent delivery looping - only proceed
1224         // if the message originated elsewhere and is a top-level post
1225
1226         if(($item['wall']) || ($item['origin']) || ($item['id'] != $item['parent']))
1227                 return;
1228
1229         // now change this copy of the post to a forum head message and deliver to all the tgroup members
1230
1231
1232         $c = q("select name, url, thumb from contact where self = 1 and uid = %d limit 1",
1233                 intval($u[0]['uid'])
1234         );
1235         if(! count($c))
1236                 return;
1237
1238         // also reset all the privacy bits to the forum default permissions
1239
1240         $private = ($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0;
1241
1242         $forum_mode = (($prvgroup) ? 2 : 1);
1243
1244         q("update item set wall = 1, origin = 1, forum_mode = %d, `owner-name` = '%s', `owner-link` = '%s', `owner-avatar` = '%s',
1245                 `private` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'  where id = %d limit 1",
1246                 intval($forum_mode),
1247                 dbesc($c[0]['name']),
1248                 dbesc($c[0]['url']),
1249                 dbesc($c[0]['thumb']),
1250                 intval($private),
1251                 dbesc($u[0]['allow_cid']),
1252                 dbesc($u[0]['allow_gid']),
1253                 dbesc($u[0]['deny_cid']),
1254                 dbesc($u[0]['deny_gid']),
1255                 intval($item_id)
1256         );
1257
1258         proc_run('php','include/notifier.php','tgroup',$item_id);
1259
1260 }
1261
1262
1263
1264 function tgroup_check($uid,$item) {
1265
1266         $a = get_app();
1267
1268         $mention = false;
1269
1270         // check that the message originated elsewhere and is a top-level post
1271
1272         if(($item['wall']) || ($item['origin']) || ($item['uri'] != $item['parent-uri']))
1273                 return false;
1274
1275
1276         $u = q("select * from user where uid = %d limit 1",
1277                 intval($uid)
1278         );
1279         if(! count($u))
1280                 return false;
1281
1282         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1283         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1284
1285
1286         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1287
1288         // Diaspora uses their own hardwired link URL in @-tags
1289         // instead of the one we supply with webfinger
1290
1291         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1292
1293         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1294         if($cnt) {
1295                 foreach($matches as $mtch) {
1296                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1297                                 $mention = true;
1298                                 logger('tgroup_check: mention found: ' . $mtch[2]);
1299                         }
1300                 }
1301         }
1302
1303         if(! $mention)
1304                 return false;
1305
1306         if((! $community_page) && (! $prvgroup))
1307                 return false;
1308
1309
1310
1311         return true;
1312
1313 }
1314
1315
1316
1317
1318
1319
1320 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
1321
1322         $a = get_app();
1323
1324         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
1325
1326         if($contact['duplex'] && $contact['dfrn-id'])
1327                 $idtosend = '0:' . $orig_id;
1328         if($contact['duplex'] && $contact['issued-id'])
1329                 $idtosend = '1:' . $orig_id;
1330
1331         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
1332
1333         $rino_enable = get_config('system','rino_encrypt');
1334
1335         if(! $rino_enable)
1336                 $rino = 0;
1337
1338         $ssl_val = intval(get_config('system','ssl_policy'));
1339         $ssl_policy = '';
1340
1341         switch($ssl_val){
1342                 case SSL_POLICY_FULL:
1343                         $ssl_policy = 'full';
1344                         break;
1345                 case SSL_POLICY_SELFSIGN:
1346                         $ssl_policy = 'self';
1347                         break;
1348                 case SSL_POLICY_NONE:
1349                 default:
1350                         $ssl_policy = 'none';
1351                         break;
1352         }
1353
1354         $url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
1355
1356         logger('dfrn_deliver: ' . $url);
1357
1358         $xml = fetch_url($url);
1359
1360         $curl_stat = $a->get_curl_code();
1361         if(! $curl_stat)
1362                 return(-1); // timed out
1363
1364         logger('dfrn_deliver: ' . $xml, LOGGER_DATA);
1365
1366         if(! $xml)
1367                 return 3;
1368
1369         if(strpos($xml,'<?xml') === false) {
1370                 logger('dfrn_deliver: no valid XML returned');
1371                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
1372                 return 3;
1373         }
1374
1375         $res = parse_xml_string($xml);
1376
1377         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
1378                 return (($res->status) ? $res->status : 3);
1379
1380         $postvars     = array();
1381         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
1382         $challenge    = hex2bin((string) $res->challenge);
1383         $perm         = (($res->perm) ? $res->perm : null);
1384         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
1385         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
1386         $page         = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
1387
1388         if($owner['page-flags'] == PAGE_PRVGROUP)
1389                 $page = 2;
1390
1391         $final_dfrn_id = '';
1392
1393         if($perm) {
1394                 if((($perm == 'rw') && (! intval($contact['writable'])))
1395                 || (($perm == 'r') && (intval($contact['writable'])))) {
1396                         q("update contact set writable = %d where id = %d limit 1",
1397                                 intval(($perm == 'rw') ? 1 : 0),
1398                                 intval($contact['id'])
1399                         );
1400                         $contact['writable'] = (string) 1 - intval($contact['writable']);
1401                 }
1402         }
1403
1404         if(($contact['duplex'] && strlen($contact['pubkey']))
1405                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1406                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1407                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
1408                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
1409         }
1410         else {
1411                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
1412                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
1413         }
1414
1415         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
1416
1417         if(strpos($final_dfrn_id,':') == 1)
1418                 $final_dfrn_id = substr($final_dfrn_id,2);
1419
1420         if($final_dfrn_id != $orig_id) {
1421                 logger('dfrn_deliver: wrong dfrn_id.');
1422                 // did not decode properly - cannot trust this site
1423                 return 3;
1424         }
1425
1426         $postvars['dfrn_id']      = $idtosend;
1427         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
1428         if($dissolve)
1429                 $postvars['dissolve'] = '1';
1430
1431
1432         if((($contact['rel']) && ($contact['rel'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1433                 $postvars['data'] = $atom;
1434                 $postvars['perm'] = 'rw';
1435         }
1436         else {
1437                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
1438                 $postvars['perm'] = 'r';
1439         }
1440
1441         $postvars['ssl_policy'] = $ssl_policy;
1442
1443         if($page)
1444                 $postvars['page'] = $page;
1445
1446         if($rino && $rino_allowed && (! $dissolve)) {
1447                 $key = substr(random_string(),0,16);
1448                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
1449                 $postvars['data'] = $data;
1450                 logger('rino: sent key = ' . $key, LOGGER_DEBUG);
1451
1452
1453                 if($dfrn_version >= 2.1) {
1454                         if(($contact['duplex'] && strlen($contact['pubkey']))
1455                                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1456                                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1457
1458                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1459                         }
1460                         else {
1461                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1462                         }
1463                 }
1464                 else {
1465                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1466                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1467                         }
1468                         else {
1469                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1470                         }
1471                 }
1472
1473                 logger('md5 rawkey ' . md5($postvars['key']));
1474
1475                 $postvars['key'] = bin2hex($postvars['key']);
1476         }
1477
1478         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
1479
1480         $xml = post_url($contact['notify'],$postvars);
1481
1482         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
1483
1484         $curl_stat = $a->get_curl_code();
1485         if((! $curl_stat) || (! strlen($xml)))
1486                 return(-1); // timed out
1487
1488         if(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
1489                 return(-1);
1490
1491         if(strpos($xml,'<?xml') === false) {
1492                 logger('dfrn_deliver: phase 2: no valid XML returned');
1493                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
1494                 return 3;
1495         }
1496
1497         if($contact['term-date'] != '0000-00-00 00:00:00') {
1498                 logger("dfrn_deliver: $url back from the dead - removing mark for death");
1499                 require_once('include/Contact.php');
1500                 unmark_for_death($contact);
1501         }
1502
1503         $res = parse_xml_string($xml);
1504
1505         return $res->status;
1506 }
1507
1508
1509 /**
1510  *
1511  * consume_feed - process atom feed and update anything/everything we might need to update
1512  *
1513  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
1514  *
1515  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
1516  *             It is this person's stuff that is going to be updated.
1517  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
1518  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
1519  *             have a contact record.
1520  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
1521  *        might not) try and subscribe to it.
1522  * $datedir sorts in reverse order
1523  * $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
1524  *      imported prior to its children being seen in the stream unless we are certain
1525  *      of how the feed is arranged/ordered.
1526  * With $pass = 1, we only pull parent items out of the stream.
1527  * With $pass = 2, we only pull children (comments/likes).
1528  *
1529  * So running this twice, first with pass 1 and then with pass 2 will do the right
1530  * thing regardless of feed ordering. This won't be adequate in a fully-threaded
1531  * model where comments can have sub-threads. That would require some massive sorting
1532  * to get all the feed items into a mostly linear ordering, and might still require
1533  * recursion.
1534  */
1535
1536 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $pass = 0) {
1537
1538         require_once('library/simplepie/simplepie.inc');
1539
1540         if(! strlen($xml)) {
1541                 logger('consume_feed: empty input');
1542                 return;
1543         }
1544
1545         $feed = new SimplePie();
1546         $feed->set_raw_data($xml);
1547         if($datedir)
1548                 $feed->enable_order_by_date(true);
1549         else
1550                 $feed->enable_order_by_date(false);
1551         $feed->init();
1552
1553         if($feed->error())
1554                 logger('consume_feed: Error parsing XML: ' . $feed->error());
1555
1556         $permalink = $feed->get_permalink();
1557
1558         // Check at the feed level for updated contact name and/or photo
1559
1560         $name_updated  = '';
1561         $new_name = '';
1562         $photo_timestamp = '';
1563         $photo_url = '';
1564         $birthday = '';
1565
1566         $hubs = $feed->get_links('hub');
1567         logger('consume_feed: hubs: ' . print_r($hubs,true), LOGGER_DATA);
1568
1569         if(count($hubs))
1570                 $hub = implode(',', $hubs);
1571
1572         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
1573         if(! $rawtags)
1574                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
1575         if($rawtags) {
1576                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
1577                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
1578                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
1579                         $new_name = $elems['name'][0]['data'];
1580                 }
1581                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
1582                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
1583                         $photo_url = $elems['link'][0]['attribs']['']['href'];
1584                 }
1585
1586                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
1587                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
1588                 }
1589         }
1590
1591         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
1592                 logger('consume_feed: Updating photo for ' . $contact['name']);
1593                 require_once("Photo.php");
1594                 $photo_failure = false;
1595                 $have_photo = false;
1596
1597                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
1598                         intval($contact['id']),
1599                         intval($contact['uid'])
1600                 );
1601                 if(count($r)) {
1602                         $resource_id = $r[0]['resource-id'];
1603                         $have_photo = true;
1604                 }
1605                 else {
1606                         $resource_id = photo_new_resource();
1607                 }
1608
1609                 $img_str = fetch_url($photo_url,true);
1610                 // guess mimetype from headers or filename
1611                 $type = guess_image_type($photo_url,true);
1612
1613
1614                 $img = new Photo($img_str, $type);
1615                 if($img->is_valid()) {
1616                         if($have_photo) {
1617                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
1618                                         dbesc($resource_id),
1619                                         intval($contact['id']),
1620                                         intval($contact['uid'])
1621                                 );
1622                         }
1623
1624                         $img->scaleImageSquare(175);
1625
1626                         $hash = $resource_id;
1627                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 4);
1628
1629                         $img->scaleImage(80);
1630                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 5);
1631
1632                         $img->scaleImage(48);
1633                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 6);
1634
1635                         $a = get_app();
1636
1637                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
1638                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
1639                                 dbesc(datetime_convert()),
1640                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
1641                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
1642                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
1643                                 intval($contact['uid']),
1644                                 intval($contact['id'])
1645                         );
1646                 }
1647         }
1648
1649         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
1650                 $r = q("select * from contact where uid = %d and id = %d limit 1",
1651                         intval($contact['uid']),
1652                         intval($contact['id'])
1653                 );
1654
1655                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1656                         dbesc(notags(trim($new_name))),
1657                         dbesc(datetime_convert()),
1658                         intval($contact['uid']),
1659                         intval($contact['id'])
1660                 );
1661
1662                 // do our best to update the name on content items
1663
1664                 if(count($r)) {
1665                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
1666                                 dbesc(notags(trim($new_name))),
1667                                 dbesc($r[0]['name']),
1668                                 dbesc($r[0]['url']),
1669                                 intval($contact['uid'])
1670                         );
1671                 }
1672         }
1673
1674         if(strlen($birthday)) {
1675                 if(substr($birthday,0,4) != $contact['bdyear']) {
1676                         logger('consume_feed: updating birthday: ' . $birthday);
1677
1678                         /**
1679                          *
1680                          * Add new birthday event for this person
1681                          *
1682                          * $bdtext is just a readable placeholder in case the event is shared
1683                          * with others. We will replace it during presentation to our $importer
1684                          * to contain a sparkle link and perhaps a photo.
1685                          *
1686                          */
1687
1688                         $bdtext = sprintf( t('%s\'s birthday'), $contact['name']);
1689                         $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ) ;
1690
1691
1692                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`)
1693                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
1694                                 intval($contact['uid']),
1695                                 intval($contact['id']),
1696                                 dbesc(datetime_convert()),
1697                                 dbesc(datetime_convert()),
1698                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
1699                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
1700                                 dbesc($bdtext),
1701                                 dbesc($bdtext2),
1702                                 dbesc('birthday')
1703                         );
1704
1705
1706                         // update bdyear
1707
1708                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1709                                 dbesc(substr($birthday,0,4)),
1710                                 intval($contact['uid']),
1711                                 intval($contact['id'])
1712                         );
1713
1714                         // This function is called twice without reloading the contact
1715                         // Make sure we only create one event. This is why &$contact
1716                         // is a reference var in this function
1717
1718                         $contact['bdyear'] = substr($birthday,0,4);
1719                 }
1720
1721         }
1722
1723         $community_page = 0;
1724         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
1725         if($rawtags) {
1726                 $community_page = intval($rawtags[0]['data']);
1727         }
1728         if(is_array($contact) && intval($contact['forum']) != $community_page) {
1729                 q("update contact set forum = %d where id = %d limit 1",
1730                         intval($community_page),
1731                         intval($contact['id'])
1732                 );
1733                 $contact['forum'] = (string) $community_page;
1734         }
1735
1736
1737         // process any deleted entries
1738
1739         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
1740         if(is_array($del_entries) && count($del_entries) && $pass != 2) {
1741                 foreach($del_entries as $dentry) {
1742                         $deleted = false;
1743                         if(isset($dentry['attribs']['']['ref'])) {
1744                                 $uri = $dentry['attribs']['']['ref'];
1745                                 $deleted = true;
1746                                 if(isset($dentry['attribs']['']['when'])) {
1747                                         $when = $dentry['attribs']['']['when'];
1748                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
1749                                 }
1750                                 else
1751                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
1752                         }
1753                         if($deleted && is_array($contact)) {
1754                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join `contact` on `item`.`contact-id` = `contact`.`id`
1755                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
1756                                         dbesc($uri),
1757                                         intval($importer['uid']),
1758                                         intval($contact['id'])
1759                                 );
1760                                 if(count($r)) {
1761                                         $item = $r[0];
1762
1763                                         if(! $item['deleted'])
1764                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
1765
1766                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
1767                                                 $xo = parse_xml_string($item['object'],false);
1768                                                 $xt = parse_xml_string($item['target'],false);
1769                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
1770                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
1771                                                                 dbesc($xt->id),
1772                                                                 intval($importer['importer_uid'])
1773                                                         );
1774                                                         if(count($i)) {
1775
1776                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
1777
1778                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
1779                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
1780                                                                 $author_copy = (($item['origin']) ? true : false);
1781
1782                                                                 if($owner_remove && $author_copy)
1783                                                                         continue;
1784                                                                 if($author_remove || $owner_remove) {
1785                                                                         $tags = explode(',',$i[0]['tag']);
1786                                                                         $newtags = array();
1787                                                                         if(count($tags)) {
1788                                                                                 foreach($tags as $tag)
1789                                                                                         if(trim($tag) !== trim($xo->body))
1790                                                                                                 $newtags[] = trim($tag);
1791                                                                         }
1792                                                                         q("update item set tag = '%s' where id = %d limit 1",
1793                                                                                 dbesc(implode(',',$newtags)),
1794                                                                                 intval($i[0]['id'])
1795                                                                         );
1796                                                                 }
1797                                                         }
1798                                                 }
1799                                         }
1800
1801                                         if($item['uri'] == $item['parent-uri']) {
1802                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1803                                                         `body` = '', `title` = ''
1804                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
1805                                                         dbesc($when),
1806                                                         dbesc(datetime_convert()),
1807                                                         dbesc($item['uri']),
1808                                                         intval($importer['uid'])
1809                                                 );
1810                                         }
1811                                         else {
1812                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1813                                                         `body` = '', `title` = ''
1814                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1815                                                         dbesc($when),
1816                                                         dbesc(datetime_convert()),
1817                                                         dbesc($uri),
1818                                                         intval($importer['uid'])
1819                                                 );
1820                                                 if($item['last-child']) {
1821                                                         // ensure that last-child is set in case the comment that had it just got wiped.
1822                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
1823                                                                 dbesc(datetime_convert()),
1824                                                                 dbesc($item['parent-uri']),
1825                                                                 intval($item['uid'])
1826                                                         );
1827                                                         // who is the last child now?
1828                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `moderated` = 0 AND `uid` = %d
1829                                                                 ORDER BY `created` DESC LIMIT 1",
1830                                                                         dbesc($item['parent-uri']),
1831                                                                         intval($importer['uid'])
1832                                                         );
1833                                                         if(count($r)) {
1834                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
1835                                                                         intval($r[0]['id'])
1836                                                                 );
1837                                                         }
1838                                                 }
1839                                         }
1840                                 }
1841                         }
1842                 }
1843         }
1844
1845         // Now process the feed
1846
1847         if($feed->get_item_quantity()) {
1848
1849                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
1850
1851         // in inverse date order
1852                 if ($datedir)
1853                         $items = array_reverse($feed->get_items());
1854                 else
1855                         $items = $feed->get_items();
1856
1857
1858                 foreach($items as $item) {
1859
1860                         $is_reply = false;
1861                         $item_id = $item->get_id();
1862                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
1863                         if(isset($rawthread[0]['attribs']['']['ref'])) {
1864                                 $is_reply = true;
1865                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
1866                         }
1867
1868                         if(($is_reply) && is_array($contact)) {
1869
1870                                 if($pass == 1)
1871                                         continue;
1872
1873                                 // not allowed to post
1874
1875                                 if($contact['rel'] == CONTACT_IS_FOLLOWER)
1876                                         continue;
1877
1878
1879                                 // Have we seen it? If not, import it.
1880
1881                                 $item_id  = $item->get_id();
1882                                 $datarray = get_atom_elements($feed,$item);
1883
1884                                 if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
1885                                         $datarray['author-name'] = $contact['name'];
1886                                 if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
1887                                         $datarray['author-link'] = $contact['url'];
1888                                 if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
1889                                         $datarray['author-avatar'] = $contact['thumb'];
1890
1891                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
1892                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
1893                                         continue;
1894                                 }
1895
1896                                 $force_parent = false;
1897                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
1898                                         if($contact['network'] === NETWORK_OSTATUS)
1899                                                 $force_parent = true;
1900                                         if(strlen($datarray['title']))
1901                                                 unset($datarray['title']);
1902                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1903                                                 dbesc(datetime_convert()),
1904                                                 dbesc($parent_uri),
1905                                                 intval($importer['uid'])
1906                                         );
1907                                         $datarray['last-child'] = 1;
1908                                 }
1909
1910
1911                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1912                                         dbesc($item_id),
1913                                         intval($importer['uid'])
1914                                 );
1915
1916                                 // Update content if 'updated' changes
1917
1918                                 if(count($r)) {
1919                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
1920
1921                                                 // do not accept (ignore) an earlier edit than one we currently have.
1922                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
1923                                                         continue;
1924
1925                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1926                                                         dbesc($datarray['title']),
1927                                                         dbesc($datarray['body']),
1928                                                         dbesc($datarray['tag']),
1929                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
1930                                                         dbesc($item_id),
1931                                                         intval($importer['uid'])
1932                                                 );
1933                                         }
1934
1935                                         // update last-child if it changes
1936
1937                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1938                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
1939                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1940                                                         dbesc(datetime_convert()),
1941                                                         dbesc($parent_uri),
1942                                                         intval($importer['uid'])
1943                                                 );
1944                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1945                                                         intval($allow[0]['data']),
1946                                                         dbesc(datetime_convert()),
1947                                                         dbesc($item_id),
1948                                                         intval($importer['uid'])
1949                                                 );
1950                                         }
1951                                         continue;
1952                                 }
1953
1954
1955                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
1956                                         // one way feed - no remote comment ability
1957                                         $datarray['last-child'] = 0;
1958                                 }
1959                                 $datarray['parent-uri'] = $parent_uri;
1960                                 $datarray['uid'] = $importer['uid'];
1961                                 $datarray['contact-id'] = $contact['id'];
1962                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
1963                                         $datarray['type'] = 'activity';
1964                                         $datarray['gravity'] = GRAVITY_LIKE;
1965                                         // only one like or dislike per person
1966                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s' OR `thr-parent` = '%s') limit 1",
1967                                                 intval($datarray['uid']),
1968                                                 intval($datarray['contact-id']),
1969                                                 dbesc($datarray['verb']),
1970                                                 dbesc($parent_uri),
1971                                                 dbesc($parent_uri)
1972                                         );
1973                                         if($r && count($r))
1974                                                 continue;
1975                                 }
1976
1977                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
1978                                         $xo = parse_xml_string($datarray['object'],false);
1979                                         $xt = parse_xml_string($datarray['target'],false);
1980
1981                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
1982                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
1983                                                         dbesc($xt->id),
1984                                                         intval($importer['importer_uid'])
1985                                                 );
1986                                                 if(! count($r))
1987                                                         continue;
1988
1989                                                 // extract tag, if not duplicate, add to parent item
1990                                                 if($xo->id && $xo->content) {
1991                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
1992                                                         if(! (stristr($r[0]['tag'],$newtag))) {
1993                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1",
1994                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . $newtag),
1995                                                                         intval($r[0]['id'])
1996                                                                 );
1997                                                         }
1998                                                 }
1999                                         }
2000                                 }
2001
2002                                 $r = item_store($datarray,$force_parent);
2003                                 continue;
2004                         }
2005
2006                         else {
2007
2008                                 // Head post of a conversation. Have we seen it? If not, import it.
2009
2010                                 $item_id  = $item->get_id();
2011
2012                                 $datarray = get_atom_elements($feed,$item);
2013
2014                                 if(is_array($contact)) {
2015                                         if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
2016                                                 $datarray['author-name'] = $contact['name'];
2017                                         if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
2018                                                 $datarray['author-link'] = $contact['url'];
2019                                         if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
2020                                                 $datarray['author-avatar'] = $contact['thumb'];
2021                                 }
2022
2023                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
2024                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
2025                                         continue;
2026                                 }
2027
2028                                 // special handling for events
2029
2030                                 if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
2031                                         $ev = bbtoevent($datarray['body']);
2032                                         if(x($ev,'desc') && x($ev,'start')) {
2033                                                 $ev['uid'] = $importer['uid'];
2034                                                 $ev['uri'] = $item_id;
2035                                                 $ev['edited'] = $datarray['edited'];
2036                                                 $ev['private'] = $datarray['private'];
2037
2038                                                 if(is_array($contact))
2039                                                         $ev['cid'] = $contact['id'];
2040                                                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2041                                                         dbesc($item_id),
2042                                                         intval($importer['uid'])
2043                                                 );
2044                                                 if(count($r))
2045                                                         $ev['id'] = $r[0]['id'];
2046                                                 $xyz = event_store($ev);
2047                                                 continue;
2048                                         }
2049                                 }
2050
2051                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
2052                                         if(strlen($datarray['title']))
2053                                                 unset($datarray['title']);
2054                                         $datarray['last-child'] = 1;
2055                                 }
2056
2057
2058                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2059                                         dbesc($item_id),
2060                                         intval($importer['uid'])
2061                                 );
2062
2063                                 // Update content if 'updated' changes
2064
2065                                 if(count($r)) {
2066                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2067
2068                                                 // do not accept (ignore) an earlier edit than one we currently have.
2069                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2070                                                         continue;
2071
2072                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2073                                                         dbesc($datarray['title']),
2074                                                         dbesc($datarray['body']),
2075                                                         dbesc($datarray['tag']),
2076                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2077                                                         dbesc($item_id),
2078                                                         intval($importer['uid'])
2079                                                 );
2080                                         }
2081
2082                                         // update last-child if it changes
2083
2084                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2085                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
2086                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2087                                                         intval($allow[0]['data']),
2088                                                         dbesc(datetime_convert()),
2089                                                         dbesc($item_id),
2090                                                         intval($importer['uid'])
2091                                                 );
2092                                         }
2093                                         continue;
2094                                 }
2095
2096                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
2097                                         logger('consume-feed: New follower');
2098                                         new_follower($importer,$contact,$datarray,$item);
2099                                         return;
2100                                 }
2101                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
2102                                         lose_follower($importer,$contact,$datarray,$item);
2103                                         return;
2104                                 }
2105
2106                                 if(activity_match($datarray['verb'],ACTIVITY_REQ_FRIEND)) {
2107                                         logger('consume-feed: New friend request');
2108                                         new_follower($importer,$contact,$datarray,$item,true);
2109                                         return;
2110                                 }
2111                                 if(activity_match($datarray['verb'],ACTIVITY_UNFRIEND))  {
2112                                         lose_sharer($importer,$contact,$datarray,$item);
2113                                         return;
2114                                 }
2115
2116
2117                                 if(! is_array($contact))
2118                                         return;
2119
2120
2121                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
2122                                                 // one way feed - no remote comment ability
2123                                                 $datarray['last-child'] = 0;
2124                                 }
2125                                 if($contact['network'] === NETWORK_FEED)
2126                                         $datarray['private'] = 2;
2127
2128                                 // This is my contact on another system, but it's really me.
2129                                 // Turn this into a wall post.
2130
2131                                 if($contact['remote_self']) {
2132                                         $datarray['wall'] = 1;
2133                                         if($contact['network'] === NETWORK_FEED) {
2134                                                 $datarray['private'] = 0;
2135                                         }
2136                                 }
2137
2138                                 $datarray['parent-uri'] = $item_id;
2139                                 $datarray['uid'] = $importer['uid'];
2140                                 $datarray['contact-id'] = $contact['id'];
2141
2142                                 if(! link_compare($datarray['owner-link'],$contact['url'])) {
2143                                         // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
2144                                         // but otherwise there's a possible data mixup on the sender's system.
2145                                         // the tgroup delivery code called from item_store will correct it if it's a forum,
2146                                         // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
2147                                         logger('consume_feed: Correcting item owner.', LOGGER_DEBUG);
2148                                         $datarray['owner-name']   = $contact['name'];
2149                                         $datarray['owner-link']   = $contact['url'];
2150                                         $datarray['owner-avatar'] = $contact['thumb'];
2151                                 }
2152
2153                                 // We've allowed "followers" to reach this point so we can decide if they are
2154                                 // posting an @-tag delivery, which followers are allowed to do for certain
2155                                 // page types. Now that we've parsed the post, let's check if it is legit. Otherwise ignore it.
2156
2157                                 if(($contact['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['uid'],$datarray)))
2158                                         continue;
2159
2160
2161                                 $r = item_store($datarray);
2162                                 continue;
2163
2164                         }
2165                 }
2166         }
2167 }
2168
2169 function local_delivery($importer,$data) {
2170
2171         $a = get_app();
2172
2173         if($importer['readonly']) {
2174                 // We aren't receiving stuff from this person. But we will quietly ignore them
2175                 // rather than a blatant "go away" message.
2176                 logger('local_delivery: ignoring');
2177                 return 0;
2178                 //NOTREACHED
2179         }
2180
2181         // Consume notification feed. This may differ from consuming a public feed in several ways
2182         // - might contain email or friend suggestions
2183         // - might contain remote followup to our message
2184         //              - in which case we need to accept it and then notify other conversants
2185         // - we may need to send various email notifications
2186
2187         $feed = new SimplePie();
2188         $feed->set_raw_data($data);
2189         $feed->enable_order_by_date(false);
2190         $feed->init();
2191
2192
2193         if($feed->error())
2194                 logger('local_delivery: Error parsing XML: ' . $feed->error());
2195
2196
2197         // Check at the feed level for updated contact name and/or photo
2198
2199         $name_updated  = '';
2200         $new_name = '';
2201         $photo_timestamp = '';
2202         $photo_url = '';
2203
2204
2205         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
2206
2207 // Fallback should not be needed here. If it isn't DFRN it won't have DFRN updated tags
2208 //      if(! $rawtags)
2209 //              $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
2210
2211         if($rawtags) {
2212                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2213                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2214                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2215                         $new_name = $elems['name'][0]['data'];
2216                 }
2217                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2218                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2219                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2220                 }
2221         }
2222
2223         if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $importer['avatar-date'])) {
2224                 logger('local_delivery: Updating photo for ' . $importer['name']);
2225                 require_once("Photo.php");
2226                 $photo_failure = false;
2227                 $have_photo = false;
2228
2229                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2230                         intval($importer['id']),
2231                         intval($importer['importer_uid'])
2232                 );
2233                 if(count($r)) {
2234                         $resource_id = $r[0]['resource-id'];
2235                         $have_photo = true;
2236                 }
2237                 else {
2238                         $resource_id = photo_new_resource();
2239                 }
2240
2241                 $img_str = fetch_url($photo_url,true);
2242                 // guess mimetype from headers or filename
2243                 $type = guess_image_type($photo_url,true);
2244
2245
2246                 $img = new Photo($img_str, $type);
2247                 if($img->is_valid()) {
2248                         if($have_photo) {
2249                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2250                                         dbesc($resource_id),
2251                                         intval($importer['id']),
2252                                         intval($importer['importer_uid'])
2253                                 );
2254                         }
2255
2256                         $img->scaleImageSquare(175);
2257
2258                         $hash = $resource_id;
2259                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2260
2261                         $img->scaleImage(80);
2262                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2263
2264                         $img->scaleImage(48);
2265                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2266
2267                         $a = get_app();
2268
2269                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2270                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
2271                                 dbesc(datetime_convert()),
2272                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2273                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2274                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2275                                 intval($importer['importer_uid']),
2276                                 intval($importer['id'])
2277                         );
2278                 }
2279         }
2280
2281         if(($name_updated) && (strlen($new_name)) && ($name_updated > $importer['name-date'])) {
2282                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2283                         intval($importer['importer_uid']),
2284                         intval($importer['id'])
2285                 );
2286
2287                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
2288                         dbesc(notags(trim($new_name))),
2289                         dbesc(datetime_convert()),
2290                         intval($importer['importer_uid']),
2291                         intval($importer['id'])
2292                 );
2293
2294                 // do our best to update the name on content items
2295
2296                 if(count($r)) {
2297                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2298                                 dbesc(notags(trim($new_name))),
2299                                 dbesc($r[0]['name']),
2300                                 dbesc($r[0]['url']),
2301                                 intval($importer['importer_uid'])
2302                         );
2303                 }
2304         }
2305
2306
2307 /*
2308         // Currently unsupported - needs a lot of work
2309         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
2310         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
2311                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
2312                 $newloc = array();
2313                 $newloc['uid'] = $importer['importer_uid'];
2314                 $newloc['cid'] = $importer['id'];
2315                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
2316                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
2317                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
2318                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
2319                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
2320                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
2321                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
2322                 $newloc['site-pubkey'] = notags(unxmlify($base['site-pubkey'][0]['data']));
2323                 $newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
2324                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));
2325
2326                 // TODO
2327                 // merge with current record, current contents have priority
2328                 // update record, set url-updated
2329                 // update profile photos
2330                 // schedule a scan?
2331
2332         }
2333 */
2334
2335         // handle friend suggestion notification
2336
2337         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
2338         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
2339                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
2340                 $fsugg = array();
2341                 $fsugg['uid'] = $importer['importer_uid'];
2342                 $fsugg['cid'] = $importer['id'];
2343                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
2344                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
2345                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
2346                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
2347                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
2348
2349                 // Does our member already have a friend matching this description?
2350
2351                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
2352                         dbesc($fsugg['name']),
2353                         dbesc(normalise_link($fsugg['url'])),
2354                         intval($fsugg['uid'])
2355                 );
2356                 if(count($r))
2357                         return 0;
2358
2359                 // Do we already have an fcontact record for this person?
2360
2361                 $fid = 0;
2362                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2363                         dbesc($fsugg['url']),
2364                         dbesc($fsugg['name']),
2365                         dbesc($fsugg['request'])
2366                 );
2367                 if(count($r)) {
2368                         $fid = $r[0]['id'];
2369
2370                         // OK, we do. Do we already have an introduction for this person ?
2371                         $r = q("select id from intro where uid = %d and fid = %d limit 1",
2372                                 intval($fsugg['uid']),
2373                                 intval($fid)
2374                         );
2375                         if(count($r))
2376                                 return 0;
2377                 }
2378                 if(! $fid)
2379                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
2380                         dbesc($fsugg['name']),
2381                         dbesc($fsugg['url']),
2382                         dbesc($fsugg['photo']),
2383                         dbesc($fsugg['request'])
2384                 );
2385                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
2386                         dbesc($fsugg['url']),
2387                         dbesc($fsugg['name']),
2388                         dbesc($fsugg['request'])
2389                 );
2390                 if(count($r)) {
2391                         $fid = $r[0]['id'];
2392                 }
2393                 // database record did not get created. Quietly give up.
2394                 else
2395                         return 0;
2396
2397
2398                 $hash = random_string();
2399
2400                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
2401                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
2402                         intval($fsugg['uid']),
2403                         intval($fid),
2404                         intval($fsugg['cid']),
2405                         dbesc($fsugg['body']),
2406                         dbesc($hash),
2407                         dbesc(datetime_convert()),
2408                         intval(0)
2409                 );
2410
2411                 notification(array(
2412                         'type'         => NOTIFY_SUGGEST,
2413                         'notify_flags' => $importer['notify-flags'],
2414                         'language'     => $importer['language'],
2415                         'to_name'      => $importer['username'],
2416                         'to_email'     => $importer['email'],
2417                         'uid'          => $importer['importer_uid'],
2418                         'item'         => $fsugg,
2419                         'link'         => $a->get_baseurl() . '/notifications/intros',
2420                         'source_name'  => $importer['name'],
2421                         'source_link'  => $importer['url'],
2422                         'source_photo' => $importer['photo'],
2423                         'verb'         => ACTIVITY_REQ_FRIEND,
2424                         'otype'        => 'intro'
2425                 ));
2426
2427                 return 0;
2428         }
2429
2430         $ismail = false;
2431
2432         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
2433         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
2434
2435                 logger('local_delivery: private message received');
2436
2437                 $ismail = true;
2438                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
2439
2440                 $msg = array();
2441                 $msg['uid'] = $importer['importer_uid'];
2442                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
2443                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
2444                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
2445                 $msg['contact-id'] = $importer['id'];
2446                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
2447                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
2448                 $msg['seen'] = 0;
2449                 $msg['replied'] = 0;
2450                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
2451                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
2452                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
2453
2454                 dbesc_array($msg);
2455
2456                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
2457                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
2458
2459                 // send notifications.
2460
2461                 require_once('include/enotify.php');
2462
2463                 $notif_params = array(
2464                         'type' => NOTIFY_MAIL,
2465                         'notify_flags' => $importer['notify-flags'],
2466                         'language' => $importer['language'],
2467                         'to_name' => $importer['username'],
2468                         'to_email' => $importer['email'],
2469                         'uid' => $importer['importer_uid'],
2470                         'item' => $msg,
2471                         'source_name' => $msg['from-name'],
2472                         'source_link' => $importer['url'],
2473                         'source_photo' => $importer['thumb'],
2474                         'verb' => ACTIVITY_POST,
2475                         'otype' => 'mail'
2476                 );
2477
2478                 notification($notif_params);
2479                 return 0;
2480
2481                 // NOTREACHED
2482         }
2483
2484         $community_page = 0;
2485         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
2486         if($rawtags) {
2487                 $community_page = intval($rawtags[0]['data']);
2488         }
2489         if(intval($importer['forum']) != $community_page) {
2490                 q("update contact set forum = %d where id = %d limit 1",
2491                         intval($community_page),
2492                         intval($importer['id'])
2493                 );
2494                 $importer['forum'] = (string) $community_page;
2495         }
2496
2497         logger('local_delivery: feed item count = ' . $feed->get_item_quantity());
2498
2499         // process any deleted entries
2500
2501         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
2502         if(is_array($del_entries) && count($del_entries)) {
2503                 foreach($del_entries as $dentry) {
2504                         $deleted = false;
2505                         if(isset($dentry['attribs']['']['ref'])) {
2506                                 $uri = $dentry['attribs']['']['ref'];
2507                                 $deleted = true;
2508                                 if(isset($dentry['attribs']['']['when'])) {
2509                                         $when = $dentry['attribs']['']['when'];
2510                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
2511                                 }
2512                                 else
2513                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
2514                         }
2515                         if($deleted) {
2516
2517                                 // check for relayed deletes to our conversation
2518
2519                                 $is_reply = false;
2520                                 $r = q("select * from item where uri = '%s' and uid = %d limit 1",
2521                                         dbesc($uri),
2522                                         intval($importer['importer_uid'])
2523                                 );
2524                                 if(count($r)) {
2525                                         $parent_uri = $r[0]['parent-uri'];
2526                                         if($r[0]['id'] != $r[0]['parent'])
2527                                                 $is_reply = true;
2528                                 }
2529
2530                                 if($is_reply) {
2531                                         $community = false;
2532
2533                                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
2534                                                 $sql_extra = '';
2535                                                 $community = true;
2536                                                 logger('local_delivery: possible community delete');
2537                                         }
2538                                         else
2539                                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
2540
2541                                         // was the top-level post for this reply written by somebody on this site?
2542                                         // Specifically, the recipient?
2543
2544                                         $is_a_remote_delete = false;
2545
2546                                         // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
2547                                         $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
2548                                                 `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
2549                                                 LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2550                                                 WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
2551                                                 AND `item`.`uid` = %d
2552                                                 $sql_extra
2553                                                 LIMIT 1",
2554                                                 dbesc($parent_uri),
2555                                                 dbesc($parent_uri),
2556                                                 dbesc($parent_uri),
2557                                                 intval($importer['importer_uid'])
2558                                         );
2559                                         if($r && count($r))
2560                                                 $is_a_remote_delete = true;
2561
2562                                         // Does this have the characteristics of a community or private group comment?
2563                                         // If it's a reply to a wall post on a community/prvgroup page it's a
2564                                         // valid community comment. Also forum_mode makes it valid for sure.
2565                                         // If neither, it's not.
2566
2567                                         if($is_a_remote_delete && $community) {
2568                                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
2569                                                         $is_a_remote_delete = false;
2570                                                         logger('local_delivery: not a community delete');
2571                                                 }
2572                                         }
2573
2574                                         if($is_a_remote_delete) {
2575                                                 logger('local_delivery: received remote delete');
2576                                         }
2577                                 }
2578
2579                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` left join contact on `item`.`contact-id` = `contact`.`id`
2580                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
2581                                         dbesc($uri),
2582                                         intval($importer['importer_uid']),
2583                                         intval($importer['id'])
2584                                 );
2585
2586                                 if(count($r)) {
2587                                         $item = $r[0];
2588
2589                                         if($item['deleted'])
2590                                                 continue;
2591
2592                                         logger('local_delivery: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
2593
2594                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2595                                                 $xo = parse_xml_string($item['object'],false);
2596                                                 $xt = parse_xml_string($item['target'],false);
2597
2598                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
2599                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
2600                                                                 dbesc($xt->id),
2601                                                                 intval($importer['importer_uid'])
2602                                                         );
2603                                                         if(count($i)) {
2604
2605                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
2606
2607                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
2608                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
2609                                                                 $author_copy = (($item['origin']) ? true : false);
2610
2611                                                                 if($owner_remove && $author_copy)
2612                                                                         continue;
2613                                                                 if($author_remove || $owner_remove) {
2614                                                                         $tags = explode(',',$i[0]['tag']);
2615                                                                         $newtags = array();
2616                                                                         if(count($tags)) {
2617                                                                                 foreach($tags as $tag)
2618                                                                                         if(trim($tag) !== trim($xo->body))
2619                                                                                                 $newtags[] = trim($tag);
2620                                                                         }
2621                                                                         q("update item set tag = '%s' where id = %d limit 1",
2622                                                                                 dbesc(implode(',',$newtags)),
2623                                                                                 intval($i[0]['id'])
2624                                                                         );
2625                                                                 }
2626                                                         }
2627                                                 }
2628                                         }
2629
2630                                         if($item['uri'] == $item['parent-uri']) {
2631                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2632                                                         `body` = '', `title` = ''
2633                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
2634                                                         dbesc($when),
2635                                                         dbesc(datetime_convert()),
2636                                                         dbesc($item['uri']),
2637                                                         intval($importer['importer_uid'])
2638                                                 );
2639                                         }
2640                                         else {
2641                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2642                                                         `body` = '', `title` = ''
2643                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2644                                                         dbesc($when),
2645                                                         dbesc(datetime_convert()),
2646                                                         dbesc($uri),
2647                                                         intval($importer['importer_uid'])
2648                                                 );
2649                                                 if($item['last-child']) {
2650                                                         // ensure that last-child is set in case the comment that had it just got wiped.
2651                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
2652                                                                 dbesc(datetime_convert()),
2653                                                                 dbesc($item['parent-uri']),
2654                                                                 intval($item['uid'])
2655                                                         );
2656                                                         // who is the last child now?
2657                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
2658                                                                 ORDER BY `created` DESC LIMIT 1",
2659                                                                         dbesc($item['parent-uri']),
2660                                                                         intval($importer['importer_uid'])
2661                                                         );
2662                                                         if(count($r)) {
2663                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
2664                                                                         intval($r[0]['id'])
2665                                                                 );
2666                                                         }
2667                                                 }
2668                                                 // if this is a relayed delete, propagate it to other recipients
2669
2670                                                 if($is_a_remote_delete)
2671                                                         proc_run('php',"include/notifier.php","drop",$item['id']);
2672                                         }
2673                                 }
2674                         }
2675                 }
2676         }
2677
2678
2679         foreach($feed->get_items() as $item) {
2680
2681                 $is_reply = false;
2682                 $item_id = $item->get_id();
2683                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
2684                 if(isset($rawthread[0]['attribs']['']['ref'])) {
2685                         $is_reply = true;
2686                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
2687                 }
2688
2689                 if($is_reply) {
2690                         $community = false;
2691
2692                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
2693                                 $sql_extra = '';
2694                                 $community = true;
2695                                 logger('local_delivery: possible community reply');
2696                         }
2697                         else
2698                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
2699
2700                         // was the top-level post for this reply written by somebody on this site?
2701                         // Specifically, the recipient?
2702
2703                         $is_a_remote_comment = false;
2704                         $top_uri = $parent_uri;
2705
2706                         $r = q("select `item`.`parent-uri` from `item`
2707                                 WHERE `item`.`uri` = '%s'
2708                                 LIMIT 1",
2709                                 dbesc($parent_uri)
2710                         );
2711                         if($r && count($r)) {
2712                                 $top_uri = $r[0]['parent-uri'];
2713
2714                                 // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
2715                                 $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
2716                                         `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
2717                                         LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
2718                                         WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
2719                                         AND `item`.`uid` = %d
2720                                         $sql_extra
2721                                         LIMIT 1",
2722                                         dbesc($top_uri),
2723                                         dbesc($top_uri),
2724                                         dbesc($top_uri),
2725                                         intval($importer['importer_uid'])
2726                                 );
2727                                 if($r && count($r))
2728                                         $is_a_remote_comment = true;
2729                         }
2730
2731                         // Does this have the characteristics of a community or private group comment?
2732                         // If it's a reply to a wall post on a community/prvgroup page it's a
2733                         // valid community comment. Also forum_mode makes it valid for sure.
2734                         // If neither, it's not.
2735
2736                         if($is_a_remote_comment && $community) {
2737                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
2738                                         $is_a_remote_comment = false;
2739                                         logger('local_delivery: not a community reply');
2740                                 }
2741                         }
2742
2743                         if($is_a_remote_comment) {
2744                                 logger('local_delivery: received remote comment');
2745                                 $is_like = false;
2746                                 // remote reply to our post. Import and then notify everybody else.
2747
2748                                 $datarray = get_atom_elements($feed,$item);
2749
2750                                 $r = q("SELECT `id`, `uid`, `last-child`, `edited`, `body`  FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2751                                         dbesc($item_id),
2752                                         intval($importer['importer_uid'])
2753                                 );
2754
2755                                 // Update content if 'updated' changes
2756
2757                                 if(count($r)) {
2758                                         $iid = $r[0]['id'];
2759                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2760
2761                                                 // do not accept (ignore) an earlier edit than one we currently have.
2762                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2763                                                         continue;
2764
2765                                                 logger('received updated comment' , LOGGER_DEBUG);
2766                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2767                                                         dbesc($datarray['title']),
2768                                                         dbesc($datarray['body']),
2769                                                         dbesc($datarray['tag']),
2770                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2771                                                         dbesc($item_id),
2772                                                         intval($importer['importer_uid'])
2773                                                 );
2774
2775                                                 proc_run('php',"include/notifier.php","comment-import",$iid);
2776
2777                                         }
2778
2779                                         continue;
2780                                 }
2781
2782
2783
2784                                 $own = q("select name,url,thumb from contact where uid = %d and self = 1 limit 1",
2785                                         intval($importer['importer_uid'])
2786                                 );
2787
2788
2789                                 $datarray['type'] = 'remote-comment';
2790                                 $datarray['wall'] = 1;
2791                                 $datarray['parent-uri'] = $parent_uri;
2792                                 $datarray['uid'] = $importer['importer_uid'];
2793                                 $datarray['owner-name'] = $own[0]['name'];
2794                                 $datarray['owner-link'] = $own[0]['url'];
2795                                 $datarray['owner-avatar'] = $own[0]['thumb'];
2796                                 $datarray['contact-id'] = $importer['id'];
2797
2798                                 if(($datarray['verb'] === ACTIVITY_LIKE) || ($datarray['verb'] === ACTIVITY_DISLIKE)) {
2799                                         $is_like = true;
2800                                         $datarray['type'] = 'activity';
2801                                         $datarray['gravity'] = GRAVITY_LIKE;
2802                                         $datarray['last-child'] = 0;
2803                                         // only one like or dislike per person
2804                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`thr-parent` = '%s' or `parent-uri` = '%s') and deleted = 0 limit 1",
2805                                                 intval($datarray['uid']),
2806                                                 intval($datarray['contact-id']),
2807                                                 dbesc($datarray['verb']),
2808                                                 dbesc($datarray['parent-uri']),
2809                                                 dbesc($datarray['parent-uri'])
2810
2811                                         );
2812                                         if($r && count($r))
2813                                                 continue;
2814                                 }
2815
2816                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2817
2818                                         $xo = parse_xml_string($datarray['object'],false);
2819                                         $xt = parse_xml_string($datarray['target'],false);
2820
2821                                         if(($xt->type == ACTIVITY_OBJ_NOTE) && ($xt->id)) {
2822
2823                                                 // fetch the parent item
2824
2825                                                 $tagp = q("select * from item where uri = '%s' and uid = %d limit 1",
2826                                                         dbesc($xt->id),
2827                                                         intval($importer['importer_uid'])
2828                                                 );
2829                                                 if(! count($tagp))
2830                                                         continue;
2831
2832                                                 // extract tag, if not duplicate, and this user allows tags, add to parent item
2833
2834                                                 if($xo->id && $xo->content) {
2835                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
2836                                                         if(! (stristr($tagp[0]['tag'],$newtag))) {
2837                                                                 $i = q("SELECT `blocktags` FROM `user` where `uid` = %d LIMIT 1",
2838                                                                         intval($importer['importer_uid'])
2839                                                                 );
2840                                                                 if(count($i) && ! intval($i[0]['blocktags'])) {
2841                                                                         q("UPDATE item SET tag = '%s', `edited` = '%s' WHERE id = %d LIMIT 1",
2842                                                                                 dbesc($tagp[0]['tag'] . (strlen($tagp[0]['tag']) ? ',' : '') . $newtag),
2843                                                                                 intval($tagp[0]['id']),
2844                                                                                 dbesc(datetime_convert())
2845                                                                         );
2846                                                                 }
2847                                                         }
2848                                                 }
2849                                         }
2850                                 }
2851
2852
2853                                 $posted_id = item_store($datarray);
2854                                 $parent = 0;
2855
2856                                 if($posted_id) {
2857                                         $r = q("SELECT `parent`, `parent-uri` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
2858                                                 intval($posted_id),
2859                                                 intval($importer['importer_uid'])
2860                                         );
2861                                         if(count($r)) {
2862                                                 $parent = $r[0]['parent'];
2863                                                 $parent_uri = $r[0]['parent-uri'];
2864                                         }
2865
2866                                         if(! $is_like) {
2867                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
2868                                                         dbesc(datetime_convert()),
2869                                                         intval($importer['importer_uid']),
2870                                                         intval($r[0]['parent'])
2871                                                 );
2872
2873                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
2874                                                         dbesc(datetime_convert()),
2875                                                         intval($importer['importer_uid']),
2876                                                         intval($posted_id)
2877                                                 );
2878                                         }
2879
2880                                         if($posted_id && $parent) {
2881
2882                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
2883
2884                                                 if((! $is_like) && (! $importer['self'])) {
2885
2886                                                         require_once('include/enotify.php');
2887
2888                                                         notification(array(
2889                                                                 'type'         => NOTIFY_COMMENT,
2890                                                                 'notify_flags' => $importer['notify-flags'],
2891                                                                 'language'     => $importer['language'],
2892                                                                 'to_name'      => $importer['username'],
2893                                                                 'to_email'     => $importer['email'],
2894                                                                 'uid'          => $importer['importer_uid'],
2895                                                                 'item'         => $datarray,
2896                                                                 'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
2897                                                                 'source_name'  => stripslashes($datarray['author-name']),
2898                                                                 'source_link'  => $datarray['author-link'],
2899                                                                 'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
2900                                                                         ? $importer['thumb'] : $datarray['author-avatar']),
2901                                                                 'verb'         => ACTIVITY_POST,
2902                                                                 'otype'        => 'item',
2903                                                                 'parent'       => $parent,
2904                                                                 'parent_uri'   => $parent_uri,
2905                                                         ));
2906
2907                                                 }
2908                                         }
2909
2910                                         return 0;
2911                                         // NOTREACHED
2912                                 }
2913                         }
2914                         else {
2915
2916                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
2917
2918                                 $item_id  = $item->get_id();
2919                                 $datarray = get_atom_elements($feed,$item);
2920
2921                                 if($importer['rel'] == CONTACT_IS_FOLLOWER)
2922                                         continue;
2923
2924                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2925                                         dbesc($item_id),
2926                                         intval($importer['importer_uid'])
2927                                 );
2928
2929                                 // Update content if 'updated' changes
2930
2931                                 if(count($r)) {
2932                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
2933
2934                                                 // do not accept (ignore) an earlier edit than one we currently have.
2935                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2936                                                         continue;
2937
2938                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2939                                                         dbesc($datarray['title']),
2940                                                         dbesc($datarray['body']),
2941                                                         dbesc($datarray['tag']),
2942                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2943                                                         dbesc($item_id),
2944                                                         intval($importer['importer_uid'])
2945                                                 );
2946                                         }
2947
2948                                         // update last-child if it changes
2949
2950                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2951                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
2952                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
2953                                                         dbesc(datetime_convert()),
2954                                                         dbesc($parent_uri),
2955                                                         intval($importer['importer_uid'])
2956                                                 );
2957                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2958                                                         intval($allow[0]['data']),
2959                                                         dbesc(datetime_convert()),
2960                                                         dbesc($item_id),
2961                                                         intval($importer['importer_uid'])
2962                                                 );
2963                                         }
2964                                         continue;
2965                                 }
2966
2967                                 $datarray['parent-uri'] = $parent_uri;
2968                                 $datarray['uid'] = $importer['importer_uid'];
2969                                 $datarray['contact-id'] = $importer['id'];
2970                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
2971                                         $datarray['type'] = 'activity';
2972                                         $datarray['gravity'] = GRAVITY_LIKE;
2973                                         // only one like or dislike per person
2974                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s' OR `thr-parent` = '%s') limit 1",
2975                                                 intval($datarray['uid']),
2976                                                 intval($datarray['contact-id']),
2977                                                 dbesc($datarray['verb']),
2978                                                 dbesc($parent_uri),
2979                                                 dbesc($parent_uri)
2980                                         );
2981                                         if($r && count($r))
2982                                                 continue;
2983
2984                                 }
2985
2986                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2987
2988                                         $xo = parse_xml_string($datarray['object'],false);
2989                                         $xt = parse_xml_string($datarray['target'],false);
2990
2991                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
2992                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
2993                                                         dbesc($xt->id),
2994                                                         intval($importer['importer_uid'])
2995                                                 );
2996                                                 if(! count($r))
2997                                                         continue;
2998
2999                                                 // extract tag, if not duplicate, add to parent item
3000                                                 if($xo->content) {
3001                                                         if(! (stristr($r[0]['tag'],trim($xo->content)))) {
3002                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d LIMIT 1",
3003                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
3004                                                                         intval($r[0]['id'])
3005                                                                 );
3006                                                         }
3007                                                 }
3008                                         }
3009                                 }
3010
3011                                 $posted_id = item_store($datarray);
3012
3013                                 // find out if our user is involved in this conversation and wants to be notified.
3014
3015                                 if(!x($datarray['type']) || $datarray['type'] != 'activity') {
3016
3017                                         $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
3018                                                 dbesc($top_uri),
3019                                                 intval($importer['importer_uid'])
3020                                         );
3021
3022                                         if(count($myconv)) {
3023                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
3024
3025                                                 // first make sure this isn't our own post coming back to us from a wall-to-wall event
3026                                                 if(! link_compare($datarray['author-link'],$importer_url)) {
3027
3028
3029                                                         foreach($myconv as $conv) {
3030
3031                                                                 // now if we find a match, it means we're in this conversation
3032
3033                                                                 if(! link_compare($conv['author-link'],$importer_url))
3034                                                                         continue;
3035
3036                                                                 require_once('include/enotify.php');
3037
3038                                                                 $conv_parent = $conv['parent'];
3039
3040                                                                 notification(array(
3041                                                                         'type'         => NOTIFY_COMMENT,
3042                                                                         'notify_flags' => $importer['notify-flags'],
3043                                                                         'language'     => $importer['language'],
3044                                                                         'to_name'      => $importer['username'],
3045                                                                         'to_email'     => $importer['email'],
3046                                                                         'uid'          => $importer['importer_uid'],
3047                                                                         'item'         => $datarray,
3048                                                                         'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
3049                                                                         'source_name'  => stripslashes($datarray['author-name']),
3050                                                                         'source_link'  => $datarray['author-link'],
3051                                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3052                                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3053                                                                         'verb'         => ACTIVITY_POST,
3054                                                                         'otype'        => 'item',
3055                                                                         'parent'       => $conv_parent,
3056                                                                         'parent_uri'   => $parent_uri
3057
3058                                                                 ));
3059
3060                                                                 // only send one notification
3061                                                                 break;
3062                                                         }
3063                                                 }
3064                                         }
3065                                 }
3066                                 continue;
3067                         }
3068                 }
3069
3070                 else {
3071
3072                         // Head post of a conversation. Have we seen it? If not, import it.
3073
3074
3075                         $item_id  = $item->get_id();
3076                         $datarray = get_atom_elements($feed,$item);
3077
3078                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
3079                                 $ev = bbtoevent($datarray['body']);
3080                                 if(x($ev,'desc') && x($ev,'start')) {
3081                                         $ev['cid'] = $importer['id'];
3082                                         $ev['uid'] = $importer['uid'];
3083                                         $ev['uri'] = $item_id;
3084                                         $ev['edited'] = $datarray['edited'];
3085                                         $ev['private'] = $datarray['private'];
3086
3087                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3088                                                 dbesc($item_id),
3089                                                 intval($importer['uid'])
3090                                         );
3091                                         if(count($r))
3092                                                 $ev['id'] = $r[0]['id'];
3093                                         $xyz = event_store($ev);
3094                                         continue;
3095                                 }
3096                         }
3097
3098                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3099                                 dbesc($item_id),
3100                                 intval($importer['importer_uid'])
3101                         );
3102
3103                         // Update content if 'updated' changes
3104
3105                         if(count($r)) {
3106                                 if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
3107
3108                                         // do not accept (ignore) an earlier edit than one we currently have.
3109                                         if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3110                                                 continue;
3111
3112                                         $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3113                                                 dbesc($datarray['title']),
3114                                                 dbesc($datarray['body']),
3115                                                 dbesc($datarray['tag']),
3116                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3117                                                 dbesc($item_id),
3118                                                 intval($importer['importer_uid'])
3119                                         );
3120                                 }
3121
3122                                 // update last-child if it changes
3123
3124                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3125                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
3126                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3127                                                 intval($allow[0]['data']),
3128                                                 dbesc(datetime_convert()),
3129                                                 dbesc($item_id),
3130                                                 intval($importer['importer_uid'])
3131                                         );
3132                                 }
3133                                 continue;
3134                         }
3135
3136                         // This is my contact on another system, but it's really me.
3137                         // Turn this into a wall post.
3138
3139                         if($importer['remote_self'])
3140                                 $datarray['wall'] = 1;
3141
3142                         $datarray['parent-uri'] = $item_id;
3143                         $datarray['uid'] = $importer['importer_uid'];
3144                         $datarray['contact-id'] = $importer['id'];
3145
3146
3147                         if(! link_compare($datarray['owner-link'],$importer['url'])) {
3148                                 // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
3149                                 // but otherwise there's a possible data mixup on the sender's system.
3150                                 // the tgroup delivery code called from item_store will correct it if it's a forum,
3151                                 // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
3152                                 logger('local_delivery: Correcting item owner.', LOGGER_DEBUG);
3153                                 $datarray['owner-name']   = $importer['senderName'];
3154                                 $datarray['owner-link']   = $importer['url'];
3155                                 $datarray['owner-avatar'] = $importer['thumb'];
3156                         }
3157
3158                         if(($importer['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['importer_uid'],$datarray)))
3159                                 continue;
3160
3161                         $posted_id = item_store($datarray);
3162
3163                         if(stristr($datarray['verb'],ACTIVITY_POKE)) {
3164                                 $verb = urldecode(substr($datarray['verb'],strpos($datarray['verb'],'#')+1));
3165                                 if(! $verb)
3166                                         continue;
3167                                 $xo = parse_xml_string($datarray['object'],false);
3168
3169                                 if(($xo->type == ACTIVITY_OBJ_PERSON) && ($xo->id)) {
3170
3171                                         // somebody was poked/prodded. Was it me?
3172
3173                                         $links = parse_xml_string("<links>".unxmlify($xo->link)."</links>",false);
3174
3175                                 foreach($links->link as $l) {
3176                                 $atts = $l->attributes();
3177                                 switch($atts['rel']) {
3178                                         case "alternate":
3179                                                                 $Blink = $atts['href'];
3180                                                                 break;
3181                                                         default:
3182                                                                 break;
3183                                     }
3184                                 }
3185                                         if($Blink && link_compare($Blink,$a->get_baseurl() . '/profile/' . $importer['nickname'])) {
3186
3187                                                 // send a notification
3188                                                 require_once('include/enotify.php');
3189
3190                                                 notification(array(
3191                                                         'type'         => NOTIFY_POKE,
3192                                                         'notify_flags' => $importer['notify-flags'],
3193                                                         'language'     => $importer['language'],
3194                                                         'to_name'      => $importer['username'],
3195                                                         'to_email'     => $importer['email'],
3196                                                         'uid'          => $importer['importer_uid'],
3197                                                         'item'         => $datarray,
3198                                                         'link'             => $a->get_baseurl() . '/display/' . $importer['nickname'] . '/' . $posted_id,
3199                                                         'source_name'  => stripslashes($datarray['author-name']),
3200                                                         'source_link'  => $datarray['author-link'],
3201                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3202                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3203                                                         'verb'         => $datarray['verb'],
3204                                                         'otype'        => 'person',
3205                                                         'activity'     => $verb,
3206
3207                                                 ));
3208                                         }
3209                                 }
3210                         }
3211
3212                         continue;
3213                 }
3214         }
3215
3216         return 0;
3217         // NOTREACHED
3218
3219 }
3220
3221
3222 function new_follower($importer,$contact,$datarray,$item,$sharing = false) {
3223         $url = notags(trim($datarray['author-link']));
3224         $name = notags(trim($datarray['author-name']));
3225         $photo = notags(trim($datarray['author-avatar']));
3226
3227         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
3228         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
3229                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
3230
3231         if(is_array($contact)) {
3232                 if(($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
3233                         || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
3234                         $r = q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
3235                                 intval(CONTACT_IS_FRIEND),
3236                                 intval($contact['id']),
3237                                 intval($importer['uid'])
3238                         );
3239                 }
3240                 // send email notification to owner?
3241         }
3242         else {
3243
3244                 // create contact record
3245
3246                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
3247                         `blocked`, `readonly`, `pending`, `writable` )
3248                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
3249                         intval($importer['uid']),
3250                         dbesc(datetime_convert()),
3251                         dbesc($url),
3252                         dbesc(normalise_link($url)),
3253                         dbesc($name),
3254                         dbesc($nick),
3255                         dbesc($photo),
3256                         dbesc(($sharing) ? NETWORK_ZOT : NETWORK_OSTATUS),
3257                         intval(($sharing) ? CONTACT_IS_SHARING : CONTACT_IS_FOLLOWER)
3258                 );
3259                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
3260                                 intval($importer['uid']),
3261                                 dbesc($url)
3262                 );
3263                 if(count($r))
3264                                 $contact_record = $r[0];
3265
3266                 // create notification
3267                 $hash = random_string();
3268
3269                 if(is_array($contact_record)) {
3270                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
3271                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
3272                                 intval($importer['uid']),
3273                                 intval($contact_record['id']),
3274                                 dbesc($hash),
3275                                 dbesc(datetime_convert())
3276                         );
3277                 }
3278                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
3279                         intval($importer['uid'])
3280                 );
3281                 $a = get_app();
3282                 if(count($r)) {
3283
3284                         if(intval($r[0]['def_gid'])) {
3285                                 require_once('include/group.php');
3286                                 group_add_member($r[0]['uid'],'',$contact_record['id'],$r[0]['def_gid']);
3287                         }
3288
3289                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) && ($r[0]['page-flags'] == PAGE_NORMAL)) {
3290                                 $email_tpl = get_intltext_template('follow_notify_eml.tpl');
3291                                 $email = replace_macros($email_tpl, array(
3292                                         '$requestor' => ((strlen($name)) ? $name : t('[Name Withheld]')),
3293                                         '$url' => $url,
3294                                         '$myname' => $r[0]['username'],
3295                                         '$siteurl' => $a->get_baseurl(),
3296                                         '$sitename' => $a->config['sitename']
3297                                 ));
3298                                 $res = mail($r[0]['email'],
3299                                         (($sharing) ? t('A new person is sharing with you at ') : t("You have a new follower at ")) . $a->config['sitename'],
3300                                         $email,
3301                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
3302                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
3303                                         . 'Content-transfer-encoding: 8bit' );
3304
3305                         }
3306                 }
3307         }
3308 }
3309
3310 function lose_follower($importer,$contact,$datarray,$item) {
3311
3312         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
3313                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
3314                         intval(CONTACT_IS_SHARING),
3315                         intval($contact['id'])
3316                 );
3317         }
3318         else {
3319                 contact_remove($contact['id']);
3320         }
3321 }
3322
3323 function lose_sharer($importer,$contact,$datarray,$item) {
3324
3325         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
3326                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
3327                         intval(CONTACT_IS_FOLLOWER),
3328                         intval($contact['id'])
3329                 );
3330         }
3331         else {
3332                 contact_remove($contact['id']);
3333         }
3334 }
3335
3336
3337 function subscribe_to_hub($url,$importer,$contact,$hubmode = 'subscribe') {
3338
3339         $a = get_app();
3340
3341         if(is_array($importer)) {
3342                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
3343                         intval($importer['uid'])
3344                 );
3345         }
3346
3347         // Diaspora has different message-ids in feeds than they do
3348         // through the direct Diaspora protocol. If we try and use
3349         // the feed, we'll get duplicates. So don't.
3350
3351         if((! count($r)) || $contact['network'] === NETWORK_DIASPORA)
3352                 return;
3353
3354         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
3355
3356         // Use a single verify token, even if multiple hubs
3357
3358         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
3359
3360         $params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
3361
3362         logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
3363
3364         if(! strlen($contact['hub-verify'])) {
3365                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
3366                         dbesc($verify_token),
3367                         intval($contact['id'])
3368                 );
3369         }
3370
3371         post_url($url,$params);
3372
3373         logger('subscribe_to_hub: returns: ' . $a->get_curl_code(), LOGGER_DEBUG);
3374
3375         return;
3376
3377 }
3378
3379
3380 function atom_author($tag,$name,$uri,$h,$w,$photo) {
3381         $o = '';
3382         if(! $tag)
3383                 return $o;
3384         $name = xmlify($name);
3385         $uri = xmlify($uri);
3386         $h = intval($h);
3387         $w = intval($w);
3388         $photo = xmlify($photo);
3389
3390
3391         $o .= "<$tag>\r\n";
3392         $o .= "<name>$name</name>\r\n";
3393         $o .= "<uri>$uri</uri>\r\n";
3394         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
3395         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
3396
3397         call_hooks('atom_author', $o);
3398
3399         $o .= "</$tag>\r\n";
3400         return $o;
3401 }
3402
3403 function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) {
3404
3405         $a = get_app();
3406
3407         if(! $item['parent'])
3408                 return;
3409
3410         if($item['deleted'])
3411                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
3412
3413
3414         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
3415                 $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
3416         else
3417                 $body = $item['body'];
3418
3419         $o = "\r\n\r\n<entry>\r\n";
3420
3421         if(is_array($author))
3422                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
3423         else
3424                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
3425         if(strlen($item['owner-name']))
3426                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
3427
3428         if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
3429                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
3430                 $o .= '<thr:in-reply-to ref="' . xmlify($parent_item) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['parent']) . '" />' . "\r\n";
3431         }
3432
3433         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
3434         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
3435         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
3436         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
3437         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
3438         $o .= '<content type="' . $type . '" >' . xmlify((($type === 'html') ? bbcode($body) : $body)) . '</content>' . "\r\n";
3439         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
3440         if($comment)
3441                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
3442
3443         if($item['location']) {
3444                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
3445                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
3446         }
3447
3448         if($item['coord'])
3449                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
3450
3451         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
3452                 $o .= '<dfrn:private>' . (($item['private']) ? $item['private'] : 1) . '</dfrn:private>' . "\r\n";
3453
3454         if($item['extid'])
3455                 $o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
3456         if($item['bookmark'])
3457                 $o .= '<dfrn:bookmark>true</dfrn:bookmark>' . "\r\n";
3458
3459         if($item['app'])
3460                 $o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
3461
3462         if($item['guid'])
3463                 $o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
3464
3465         if($item['signed_text']) {
3466                 $sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
3467                 $o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
3468         }
3469
3470         $verb = construct_verb($item);
3471         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
3472         $actobj = construct_activity_object($item);
3473         if(strlen($actobj))
3474                 $o .= $actobj;
3475         $actarg = construct_activity_target($item);
3476         if(strlen($actarg))
3477                 $o .= $actarg;
3478
3479         $tags = item_getfeedtags($item);
3480         if(count($tags)) {
3481                 foreach($tags as $t) {
3482                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
3483                 }
3484         }
3485
3486         $o .= item_getfeedattach($item);
3487
3488         $mentioned = get_mentions($item);
3489         if($mentioned)
3490                 $o .= $mentioned;
3491
3492         call_hooks('atom_entry', $o);
3493
3494         $o .= '</entry>' . "\r\n";
3495
3496         return $o;
3497 }
3498
3499 function fix_private_photos($s, $uid, $item = null, $cid = 0) {
3500         $a = get_app();
3501
3502         logger('fix_private_photos', LOGGER_DEBUG);
3503         $site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
3504
3505         $orig_body = $s;
3506         $new_body = '';
3507
3508         $img_start = strpos($orig_body, '[img');
3509         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
3510         $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
3511         while( ($img_st_close !== false) && ($img_len !== false) ) {
3512
3513                 $img_st_close++; // make it point to AFTER the closing bracket
3514                 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
3515
3516                 logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
3517
3518
3519                 if(stristr($image , $site . '/photo/')) {
3520                         // Only embed locally hosted photos
3521                         $replace = false;
3522                         $i = basename($image);
3523                         $i = str_replace(array('.jpg','.png'),array('',''),$i);
3524                         $x = strpos($i,'-');
3525
3526                         if($x) {
3527                                 $res = substr($i,$x+1);
3528                                 $i = substr($i,0,$x);
3529                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
3530                                         dbesc($i),
3531                                         intval($res),
3532                                         intval($uid)
3533                                 );
3534                                 if(count($r)) {
3535
3536                                         // Check to see if we should replace this photo link with an embedded image
3537                                         // 1. No need to do so if the photo is public
3538                                         // 2. If there's a contact-id provided, see if they're in the access list
3539                                         //    for the photo. If so, embed it.
3540                                         // 3. Otherwise, if we have an item, see if the item permissions match the photo
3541                                         //    permissions, regardless of order but first check to see if they're an exact
3542                                         //    match to save some processing overhead.
3543
3544                                         if(has_permissions($r[0])) {
3545                                                 if($cid) {
3546                                                         $recips = enumerate_permissions($r[0]);
3547                                                         if(in_array($cid, $recips)) {
3548                                                                 $replace = true;
3549                                                         }
3550                                                 }
3551                                                 elseif($item) {
3552                                                         if(compare_permissions($item,$r[0]))
3553                                                                 $replace = true;
3554                                                 }
3555                                         }
3556                                         if($replace) {
3557                                                 $data = $r[0]['data'];
3558                                                 $type = $r[0]['type'];
3559
3560                                                 // If a custom width and height were specified, apply before embedding
3561                                                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
3562                                                         logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
3563
3564                                                         $width = intval($match[1]);
3565                                                         $height = intval($match[2]);
3566
3567                                                         $ph = new Photo($data, $type);
3568                                                         if($ph->is_valid()) {
3569                                                                 $ph->scaleImage(max($width, $height));
3570                                                                 $data = $ph->imageString();
3571                                                                 $type = $ph->getType();
3572                                                         }
3573                                                 }
3574
3575                                                 logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
3576                                                 $image = 'data:' . $type . ';base64,' . base64_encode($data);
3577                                                 logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
3578                                         }
3579                                 }
3580                         }
3581                 }
3582
3583                 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
3584                 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
3585                 if($orig_body === false)
3586                         $orig_body = '';
3587
3588                 $img_start = strpos($orig_body, '[img');
3589                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
3590                 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
3591         }
3592
3593         $new_body = $new_body . $orig_body;
3594
3595         return($new_body);
3596 }
3597
3598
3599 function has_permissions($obj) {
3600         if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != ''))
3601                 return true;
3602         return false;
3603 }
3604
3605 function compare_permissions($obj1,$obj2) {
3606         // first part is easy. Check that these are exactly the same.
3607         if(($obj1['allow_cid'] == $obj2['allow_cid'])
3608                 && ($obj1['allow_gid'] == $obj2['allow_gid'])
3609                 && ($obj1['deny_cid'] == $obj2['deny_cid'])
3610                 && ($obj1['deny_gid'] == $obj2['deny_gid']))
3611                 return true;
3612
3613         // This is harder. Parse all the permissions and compare the resulting set.
3614
3615         $recipients1 = enumerate_permissions($obj1);
3616         $recipients2 = enumerate_permissions($obj2);
3617         sort($recipients1);
3618         sort($recipients2);
3619         if($recipients1 == $recipients2)
3620                 return true;
3621         return false;
3622 }
3623
3624 // returns an array of contact-ids that are allowed to see this object
3625
3626 function enumerate_permissions($obj) {
3627         require_once('include/group.php');
3628         $allow_people = expand_acl($obj['allow_cid']);
3629         $allow_groups = expand_groups(expand_acl($obj['allow_gid']));
3630         $deny_people  = expand_acl($obj['deny_cid']);
3631         $deny_groups  = expand_groups(expand_acl($obj['deny_gid']));
3632         $recipients   = array_unique(array_merge($allow_people,$allow_groups));
3633         $deny         = array_unique(array_merge($deny_people,$deny_groups));
3634         $recipients   = array_diff($recipients,$deny);
3635         return $recipients;
3636 }
3637
3638 function item_getfeedtags($item) {
3639         $ret = array();
3640         $matches = false;
3641         $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
3642         if($cnt) {
3643                 for($x = 0; $x < $cnt; $x ++) {
3644                         if($matches[1][$x])
3645                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
3646                 }
3647         }
3648         $matches = false;
3649         $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
3650         if($cnt) {
3651                 for($x = 0; $x < $cnt; $x ++) {
3652                         if($matches[1][$x])
3653                                 $ret[] = array('@',$matches[1][$x], $matches[2][$x]);
3654                 }
3655         }
3656         return $ret;
3657 }
3658
3659 function item_getfeedattach($item) {
3660         $ret = '';
3661         $arr = explode(',',$item['attach']);
3662         if(count($arr)) {
3663                 foreach($arr as $r) {
3664                         $matches = false;
3665                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"\[\/attach\]|',$r,$matches);
3666                         if($cnt) {
3667                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
3668                                 if(intval($matches[2]))
3669                                         $ret .= 'length="' . intval($matches[2]) . '" ';
3670                                 if($matches[4] !== ' ')
3671                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
3672                                 $ret .= ' />' . "\r\n";
3673                         }
3674                 }
3675         }
3676         return $ret;
3677 }
3678
3679
3680
3681 function item_expire($uid,$days) {
3682
3683         if((! $uid) || ($days < 1))
3684                 return;
3685
3686         // $expire_network_only = save your own wall posts
3687         // and just expire conversations started by others
3688
3689         $expire_network_only = get_pconfig($uid,'expire','network_only');
3690         $sql_extra = ((intval($expire_network_only)) ? " AND wall = 0 " : "");
3691
3692         $r = q("SELECT * FROM `item`
3693                 WHERE `uid` = %d
3694                 AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY
3695                 AND `id` = `parent`
3696                 $sql_extra
3697                 AND `deleted` = 0",
3698                 intval($uid),
3699                 intval($days)
3700         );
3701
3702         if(! count($r))
3703                 return;
3704
3705         $expire_items = get_pconfig($uid, 'expire','items');
3706         $expire_items = (($expire_items===false)?1:intval($expire_items)); // default if not set: 1
3707
3708         $expire_notes = get_pconfig($uid, 'expire','notes');
3709         $expire_notes = (($expire_notes===false)?1:intval($expire_notes)); // default if not set: 1
3710
3711         $expire_starred = get_pconfig($uid, 'expire','starred');
3712         $expire_starred = (($expire_starred===false)?1:intval($expire_starred)); // default if not set: 1
3713
3714         $expire_photos = get_pconfig($uid, 'expire','photos');
3715         $expire_photos = (($expire_photos===false)?0:intval($expire_photos)); // default if not set: 0
3716
3717         logger('expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
3718
3719         foreach($r as $item) {
3720
3721                 // don't expire filed items
3722
3723                 if(strpos($item['file'],'[') !== false)
3724                         continue;
3725
3726                 // Only expire posts, not photos and photo comments
3727
3728                 if($expire_photos==0 && strlen($item['resource-id']))
3729                         continue;
3730                 if($expire_starred==0 && intval($item['starred']))
3731                         continue;
3732                 if($expire_notes==0 && $item['type']=='note')
3733                         continue;
3734                 if($expire_items==0 && $item['type']!='note')
3735                         continue;
3736
3737                 drop_item($item['id'],false);
3738         }
3739
3740         proc_run('php',"include/notifier.php","expire","$uid");
3741
3742 }
3743
3744
3745 function drop_items($items) {
3746         $uid = 0;
3747
3748         if(! local_user() && ! remote_user())
3749                 return;
3750
3751         if(count($items)) {
3752                 foreach($items as $item) {
3753                         $owner = drop_item($item,false);
3754                         if($owner && ! $uid)
3755                                 $uid = $owner;
3756                 }
3757         }
3758
3759         // multiple threads may have been deleted, send an expire notification
3760
3761         if($uid)
3762                 proc_run('php',"include/notifier.php","expire","$uid");
3763 }
3764
3765
3766 function drop_item($id,$interactive = true) {
3767
3768         $a = get_app();
3769
3770         // locate item to be deleted
3771
3772         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
3773                 intval($id)
3774         );
3775
3776         if(! count($r)) {
3777                 if(! $interactive)
3778                         return 0;
3779                 notice( t('Item not found.') . EOL);
3780                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3781         }
3782
3783         $item = $r[0];
3784
3785         $owner = $item['uid'];
3786
3787         $cid = 0;
3788
3789         // check if logged in user is either the author or owner of this item
3790
3791         if(is_array($_SESSION['remote'])) {
3792                 foreach($_SESSION['remote'] as $visitor) {
3793                         if($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
3794                                 $cid = $visitor['cid'];
3795                                 break;
3796                         }
3797                 }
3798         }
3799
3800
3801         if((local_user() == $item['uid']) || ($cid) || (! $interactive)) {
3802
3803                 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
3804                 // delete the item
3805
3806                 $r = q("UPDATE `item` SET `deleted` = 1, `title` = '', `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
3807                         dbesc(datetime_convert()),
3808                         dbesc(datetime_convert()),
3809                         intval($item['id'])
3810                 );
3811
3812                 // clean up categories and tags so they don't end up as orphans
3813
3814                 $matches = false;
3815                 $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
3816                 if($cnt) {
3817                         foreach($matches as $mtch) {
3818                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
3819                         }
3820                 }
3821
3822                 $matches = false;
3823
3824                 $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
3825                 if($cnt) {
3826                         foreach($matches as $mtch) {
3827                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
3828                         }
3829                 }
3830
3831                 // If item is a link to a photo resource, nuke all the associated photos
3832                 // (visitors will not have photo resources)
3833                 // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
3834                 // generate a resource-id and therefore aren't intimately linked to the item.
3835
3836                 if(strlen($item['resource-id'])) {
3837                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
3838                                 dbesc($item['resource-id']),
3839                                 intval($item['uid'])
3840                         );
3841                         // ignore the result
3842                 }
3843
3844                 // If item is a link to an event, nuke the event record.
3845
3846                 if(intval($item['event-id'])) {
3847                         q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d LIMIT 1",
3848                                 intval($item['event-id']),
3849                                 intval($item['uid'])
3850                         );
3851                         // ignore the result
3852                 }
3853
3854                 // clean up item_id and sign meta-data tables
3855
3856                 $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
3857                         intval($item['id']),
3858                         intval($item['uid'])
3859                 );
3860
3861                 $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
3862                         intval($item['id']),
3863                         intval($item['uid'])
3864                 );
3865
3866                 // If it's the parent of a comment thread, kill all the kids
3867
3868                 if($item['uri'] == $item['parent-uri']) {
3869                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
3870                                 WHERE `parent-uri` = '%s' AND `uid` = %d ",
3871                                 dbesc(datetime_convert()),
3872                                 dbesc(datetime_convert()),
3873                                 dbesc($item['parent-uri']),
3874                                 intval($item['uid'])
3875                         );
3876                         // ignore the result
3877                 }
3878                 else {
3879                         // ensure that last-child is set in case the comment that had it just got wiped.
3880                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
3881                                 dbesc(datetime_convert()),
3882                                 dbesc($item['parent-uri']),
3883                                 intval($item['uid'])
3884                         );
3885                         // who is the last child now?
3886                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
3887                                 dbesc($item['parent-uri']),
3888                                 intval($item['uid'])
3889                         );
3890                         if(count($r)) {
3891                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
3892                                         intval($r[0]['id'])
3893                                 );
3894                         }
3895
3896                         // Add a relayable_retraction signature for Diaspora.
3897                         store_diaspora_retract_sig($item, $a->user, $a->get_baseurl());
3898                 }
3899                 $drop_id = intval($item['id']);
3900
3901                 // send the notification upstream/downstream as the case may be
3902
3903                 if(! $interactive)
3904                         return $owner;
3905
3906                 proc_run('php',"include/notifier.php","drop","$drop_id");
3907                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3908                 //NOTREACHED
3909         }
3910         else {
3911                 if(! $interactive)
3912                         return 0;
3913                 notice( t('Permission denied.') . EOL);
3914                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
3915                 //NOTREACHED
3916         }
3917
3918 }
3919
3920
3921 function first_post_date($uid,$wall = false) {
3922         $r = q("select id, created from item
3923                 where uid = %d and wall = %d and deleted = 0 and visible = 1 AND moderated = 0
3924                 and id = parent
3925                 order by created asc limit 1",
3926                 intval($uid),
3927                 intval($wall ? 1 : 0)
3928         );
3929         if(count($r)) {
3930 //              logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
3931                 return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10);
3932         }
3933         return false;
3934 }
3935
3936 function posted_dates($uid,$wall) {
3937         $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
3938
3939         $dthen = first_post_date($uid,$wall);
3940         if(! $dthen)
3941                 return array();
3942
3943         // If it's near the end of a long month, backup to the 28th so that in
3944         // consecutive loops we'll always get a whole month difference.
3945
3946         if(intval(substr($dnow,8)) > 28)
3947                 $dnow = substr($dnow,0,8) . '28';
3948         if(intval(substr($dthen,8)) > 28)
3949                 $dnow = substr($dthen,0,8) . '28';
3950
3951         $ret = array();
3952         // Starting with the current month, get the first and last days of every
3953         // month down to and including the month of the first post
3954         while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
3955                 $dstart = substr($dnow,0,8) . '01';
3956                 $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
3957                 $start_month = datetime_convert('','',$dstart,'Y-m-d');
3958                 $end_month = datetime_convert('','',$dend,'Y-m-d');
3959                 $str = day_translate(datetime_convert('','',$dnow,'F Y'));
3960                 $ret[] = array($str,$end_month,$start_month);
3961                 $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
3962         }
3963         return $ret;
3964 }
3965
3966
3967 function posted_date_widget($url,$uid,$wall) {
3968         $o = '';
3969
3970         // For former Facebook folks that left because of "timeline"
3971
3972         if($wall && intval(get_pconfig($uid,'system','no_wall_archive_widget')))
3973                 return $o;
3974
3975         $ret = posted_dates($uid,$wall);
3976         if(! count($ret))
3977                 return $o;
3978
3979         $o = replace_macros(get_markup_template('posted_date_widget.tpl'),array(
3980                 '$title' => t('Archives'),
3981                 '$size' => ((count($ret) > 6) ? 6 : count($ret)),
3982                 '$url' => $url,
3983                 '$dates' => $ret
3984         ));
3985         return $o;
3986 }
3987
3988 function store_diaspora_retract_sig($item, $user, $baseurl) {
3989         // Note that we can't add a target_author_signature
3990         // if the comment was deleted by a remote user. That should be ok, because if a remote user is deleting
3991         // the comment, that means we're the home of the post, and Diaspora will only
3992         // check the parent_author_signature of retractions that it doesn't have to relay further
3993         //
3994         // I don't think this function gets called for an "unlike," but I'll check anyway
3995
3996         $enabled = intval(get_config('system','diaspora_enabled'));
3997         if(! $enabled) {
3998                 logger('drop_item: diaspora support disabled, not storing retraction signature', LOGGER_DEBUG);
3999                 return;
4000         }
4001
4002         logger('drop_item: storing diaspora retraction signature');
4003
4004         $signed_text = $item['guid'] . ';' . ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
4005
4006         if(local_user() == $item['uid']) {
4007
4008                 $handle = $user['nickname'] . '@' . substr($baseurl, strpos($baseurl,'://') + 3);
4009                 $authorsig = base64_encode(rsa_sign($signed_text,$user['prvkey'],'sha256'));
4010         }
4011         else {
4012                 $r = q("SELECT `nick`, `url` FROM `contact` WHERE `id` = '%d' LIMIT 1",
4013                         $item['contact-id'] // If this function gets called, drop_item() has already checked remote_user() == $item['contact-id']
4014                 );
4015                 if(count($r)) {
4016                         // The below handle only works for NETWORK_DFRN. I think that's ok, because this function
4017                         // only handles DFRN deletes
4018                         $handle_baseurl_start = strpos($r['url'],'://') + 3;
4019                         $handle_baseurl_length = strpos($r['url'],'/profile') - $handle_baseurl_start;
4020                         $handle = $r['nick'] . '@' . substr($r['url'], $handle_baseurl_start, $handle_baseurl_length);
4021                         $authorsig = '';
4022                 }
4023         }
4024
4025         if(isset($handle))
4026                 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
4027                         intval($item['id']),
4028                         dbesc($signed_text),
4029                         dbesc($authorsig),
4030                         dbesc($handle)
4031                 );
4032
4033         return;
4034 }