include/items.php

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