include/items.php

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