include/items.php

   1 <?php
   2
   3 require_once('include/bbcode.php');
   4 require_once('include/oembed.php');
   5 require_once('include/salmon.php');
   6 require_once('include/crypto.php');
   7 require_once('include/Photo.php');
   8 require_once('include/tags.php');
   9 require_once('include/files.php');
  10 require_once('include/text.php');
  11 require_once('include/email.php');
  12 require_once('include/ostatus_conversation.php');
  13 require_once('include/threads.php');
  14 require_once('include/socgraph.php');
  15
  16 function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
  17
  18
  19         $sitefeed    = ((strlen($owner_nick)) ? false : true); // not yet implemented, need to rewrite huge chunks of following logic
  20         $public_feed = (($dfrn_id) ? false : true);
  21         $starred     = false;   // not yet implemented, possible security issues
  22         $converse    = false;
  23
  24         if($public_feed && $a->argc > 2) {
  25                 for($x = 2; $x < $a->argc; $x++) {
  26                         if($a->argv[$x] == 'converse')
  27                                 $converse = true;
  28                         if($a->argv[$x] == 'starred')
  29                                 $starred = true;
  30                         if($a->argv[$x] === 'category' && $a->argc > ($x + 1) && strlen($a->argv[$x+1]))
  31                                 $category = $a->argv[$x+1];
  32                 }
  33         }
  34
  35
  36
  37         // default permissions - anonymous user
  38
  39         $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid`  = '' AND `deny_gid`  = '' ";
  40
  41         $r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
  42                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
  43                 WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
  44                 dbesc($owner_nick)
  45         );
  46
  47         if(! count($r))
  48                 killme();
  49
  50         $owner = $r[0];
  51         $owner_id = $owner['user_uid'];
  52         $owner_nick = $owner['nickname'];
  53
  54         $birthday = feed_birthday($owner_id,$owner['timezone']);
  55
  56         $sql_post_table = "";
  57
  58         if(! $public_feed) {
  59
  60                 $sql_extra = '';
  61                 switch($direction) {
  62                         case (-1):
  63                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
  64                                 $my_id = $dfrn_id;
  65                                 break;
  66                         case 0:
  67                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  68                                 $my_id = '1:' . $dfrn_id;
  69                                 break;
  70                         case 1:
  71                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  72                                 $my_id = '0:' . $dfrn_id;
  73                                 break;
  74                         default:
  75                                 return false;
  76                                 break; // NOTREACHED
  77                 }
  78
  79                 $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
  80                         intval($owner_id)
  81                 );
  82
  83                 if(! count($r))
  84                         killme();
  85
  86                 $contact = $r[0];
  87                 require_once('include/security.php');
  88                 $groups = init_groups_visitor($contact['id']);
  89
  90                 if(count($groups)) {
  91                         for($x = 0; $x < count($groups); $x ++)
  92                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  93                         $gs = implode('|', $groups);
  94                 }
  95                 else
  96                         $gs = '<<>>' ; // Impossible to match
  97
  98                 $sql_extra = sprintf("
  99                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
 100                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
 101                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
 102                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
 103                 ",
 104                         intval($contact['id']),
 105                         intval($contact['id']),
 106                         dbesc($gs),
 107                         dbesc($gs)
 108                 );
 109         }
 110
 111         if($public_feed)
 112                 $sort = 'DESC';
 113         else
 114                 $sort = 'ASC';
 115
 116         if(! strlen($last_update))
 117                 $last_update = 'now -30 days';
 118
 119         if(isset($category)) {
 120                 $sql_post_table = sprintf("INNER JOIN (SELECT `oid` FROM `term` WHERE `term` = '%s' AND `otype` = %d AND `type` = %d AND `uid` = %d ORDER BY `tid` DESC) AS `term` ON `item`.`id` = `term`.`oid` ",
 121                                 dbesc(protect_sprintf($category)), intval(TERM_OBJ_POST), intval(TERM_CATEGORY), intval($owner_id));
 122                 //$sql_extra .= file_tag_file_query('item',$category,'category');
 123         }
 124
 125         if($public_feed) {
 126                 if(! $converse)
 127                         $sql_extra .= " AND `contact`.`self` = 1 ";
 128         }
 129
 130         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
 131
 132         //      AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
 133         //      dbesc($check_date),
 134
 135         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
 136                 `contact`.`name`, `contact`.`network`, `contact`.`photo`, `contact`.`url`,
 137                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
 138                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
 139                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`,
 140                 `sign`.`signed_text`, `sign`.`signature`, `sign`.`signer`
 141                 FROM `item` $sql_post_table
 142                 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 143                 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 144                 LEFT JOIN `sign` ON `sign`.`iid` = `item`.`id`
 145                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1 and `item`.`moderated` = 0 AND `item`.`parent` != 0
 146                 AND `item`.`wall` = 1 AND `item`.`changed` > '%s'
 147                 $sql_extra
 148                 ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
 149                 intval($owner_id),
 150                 dbesc($check_date),
 151                 dbesc($sort)
 152         );
 153
 154         // Will check further below if this actually returned results.
 155         // We will provide an empty feed if that is the case.
 156
 157         $items = $r;
 158
 159         $feed_template = get_markup_template(($dfrn_id) ? 'atom_feed_dfrn.tpl' : 'atom_feed.tpl');
 160
 161         $atom = '';
 162
 163         $hubxml = feed_hublinks();
 164
 165         $salmon = feed_salmonlinks($owner_nick);
 166
 167         $alternatelink = $owner['url'];
 168
 169         if(isset($category))
 170                 $alternatelink .= "/category/".$category;
 171
 172         $atom .= replace_macros($feed_template, array(
 173                 '$version'      => xmlify(FRIENDICA_VERSION),
 174                 '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 175                 '$feed_title'   => xmlify($owner['name']),
 176                 '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
 177                 '$hub'          => $hubxml,
 178                 '$salmon'       => $salmon,
 179                 '$alternatelink' => xmlify($alternatelink),
 180                 '$name'         => xmlify($owner['name']),
 181                 '$profile_page' => xmlify($owner['url']),
 182                 '$photo'        => xmlify($owner['photo']),
 183                 '$thumb'        => xmlify($owner['thumb']),
 184                 '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 185                 '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 186                 '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 187                 '$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : ''),
 188                 '$community'    => (($owner['page-flags'] == PAGE_COMMUNITY) ? '<dfrn:community>1</dfrn:community>' : '')
 189         ));
 190
 191         call_hooks('atom_feed', $atom);
 192
 193         if(! count($items)) {
 194
 195                 call_hooks('atom_feed_end', $atom);
 196
 197                 $atom .= '</feed>' . "\r\n";
 198                 return $atom;
 199         }
 200
 201         foreach($items as $item) {
 202
 203                 // prevent private email from leaking.
 204                 if($item['network'] === NETWORK_MAIL)
 205                         continue;
 206
 207                 // public feeds get html, our own nodes use bbcode
 208
 209                 if($public_feed) {
 210                         $type = 'html';
 211                         // catch any email that's in a public conversation and make sure it doesn't leak
 212                         if($item['private'])
 213                                 continue;
 214                 }
 215                 else {
 216                         $type = 'text';
 217                 }
 218
 219                 $atom .= atom_entry($item,$type,null,$owner,true);
 220         }
 221
 222         call_hooks('atom_feed_end', $atom);
 223
 224         $atom .= '</feed>' . "\r\n";
 225
 226         return $atom;
 227 }
 228
 229
 230 function construct_verb($item) {
 231         if($item['verb'])
 232                 return $item['verb'];
 233         return ACTIVITY_POST;
 234 }
 235
 236 function construct_activity_object($item) {
 237
 238         if($item['object']) {
 239                 $o = '<as:object>' . "\r\n";
 240                 $r = parse_xml_string($item['object'],false);
 241
 242
 243                 if(! $r)
 244                         return '';
 245                 if($r->type)
 246                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 247                 if($r->id)
 248                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 249                 if($r->title)
 250                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 251                 if($r->link) {
 252                         if(substr($r->link,0,1) === '<') {
 253                                 // patch up some facebook "like" activity objects that got stored incorrectly
 254                                 // for a couple of months prior to 9-Jun-2011 and generated bad XML.
 255                                 // we can probably remove this hack here and in the following function in a few months time.
 256                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 257                                         $r->link = str_replace('&','&amp;', $r->link);
 258                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 259                                 $o .= $r->link;
 260                         }
 261                         else
 262                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 263                 }
 264                 if($r->content)
 265                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 266                 $o .= '</as:object>' . "\r\n";
 267                 return $o;
 268         }
 269
 270         return '';
 271 }
 272
 273 function construct_activity_target($item) {
 274
 275         if($item['target']) {
 276                 $o = '<as:target>' . "\r\n";
 277                 $r = parse_xml_string($item['target'],false);
 278                 if(! $r)
 279                         return '';
 280                 if($r->type)
 281                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 282                 if($r->id)
 283                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 284                 if($r->title)
 285                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 286                 if($r->link) {
 287                         if(substr($r->link,0,1) === '<') {
 288                                 if(strstr($r->link,'&') && (! strstr($r->link,'&amp;')))
 289                                         $r->link = str_replace('&','&amp;', $r->link);
 290                                 $r->link = preg_replace('/\<link(.*?)\"\>/','<link$1"/>',$r->link);
 291                                 $o .= $r->link;
 292                         }
 293                         else
 294                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 295                 }
 296                 if($r->content)
 297                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 298                 $o .= '</as:target>' . "\r\n";
 299                 return $o;
 300         }
 301
 302         return '';
 303 }
 304
 305 /* limit_body_size()
 306  *
 307  *              The purpose of this function is to apply system message length limits to
 308  *              imported messages without including any embedded photos in the length
 309  */
 310 if(! function_exists('limit_body_size')) {
 311 function limit_body_size($body) {
 312
 313 //      logger('limit_body_size: start', LOGGER_DEBUG);
 314
 315         $maxlen = get_max_import_size();
 316
 317         // If the length of the body, including the embedded images, is smaller
 318         // than the maximum, then don't waste time looking for the images
 319         if($maxlen && (strlen($body) > $maxlen)) {
 320
 321                 logger('limit_body_size: the total body length exceeds the limit', LOGGER_DEBUG);
 322
 323                 $orig_body = $body;
 324                 $new_body = '';
 325                 $textlen = 0;
 326                 $max_found = false;
 327
 328                 $img_start = strpos($orig_body, '[img');
 329                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 330                 $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 331                 while(($img_st_close !== false) && ($img_end !== false)) {
 332
 333                         $img_st_close++; // make it point to AFTER the closing bracket
 334                         $img_end += $img_start;
 335                         $img_end += strlen('[/img]');
 336
 337                         if(! strcmp(substr($orig_body, $img_start + $img_st_close, 5), 'data:')) {
 338                                 // This is an embedded image
 339
 340                                 if( ($textlen + $img_start) > $maxlen ) {
 341                                         if($textlen < $maxlen) {
 342                                                 logger('limit_body_size: the limit happens before an embedded image', LOGGER_DEBUG);
 343                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 344                                                 $textlen = $maxlen;
 345                                         }
 346                                 }
 347                                 else {
 348                                         $new_body = $new_body . substr($orig_body, 0, $img_start);
 349                                         $textlen += $img_start;
 350                                 }
 351
 352                                 $new_body = $new_body . substr($orig_body, $img_start, $img_end - $img_start);
 353                         }
 354                         else {
 355
 356                                 if( ($textlen + $img_end) > $maxlen ) {
 357                                         if($textlen < $maxlen) {
 358                                                 logger('limit_body_size: the limit happens before the end of a non-embedded image', LOGGER_DEBUG);
 359                                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 360                                                 $textlen = $maxlen;
 361                                         }
 362                                 }
 363                                 else {
 364                                         $new_body = $new_body . substr($orig_body, 0, $img_end);
 365                                         $textlen += $img_end;
 366                                 }
 367                         }
 368                         $orig_body = substr($orig_body, $img_end);
 369
 370                         if($orig_body === false) // in case the body ends on a closing image tag
 371                                 $orig_body = '';
 372
 373                         $img_start = strpos($orig_body, '[img');
 374                         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
 375                         $img_end = ($img_start !== false ? strpos(substr($orig_body, $img_start), '[/img]') : false);
 376                 }
 377
 378                 if( ($textlen + strlen($orig_body)) > $maxlen) {
 379                         if($textlen < $maxlen) {
 380                                 logger('limit_body_size: the limit happens after the end of the last image', LOGGER_DEBUG);
 381                                 $new_body = $new_body . substr($orig_body, 0, $maxlen - $textlen);
 382                                 $textlen = $maxlen;
 383                         }
 384                 }
 385                 else {
 386                         logger('limit_body_size: the text size with embedded images extracted did not violate the limit', LOGGER_DEBUG);
 387                         $new_body = $new_body . $orig_body;
 388                         $textlen += strlen($orig_body);
 389                 }
 390
 391                 return $new_body;
 392         }
 393         else
 394                 return $body;
 395 }}
 396
 397 function title_is_body($title, $body) {
 398
 399         $title = strip_tags($title);
 400         $title = trim($title);
 401         $title = html_entity_decode($title, ENT_QUOTES, 'UTF-8');
 402         $title = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $title);
 403
 404         $body = strip_tags($body);
 405         $body = trim($body);
 406         $body = html_entity_decode($body, ENT_QUOTES, 'UTF-8');
 407         $body = str_replace(array("\n", "\r", "\t", " "), array("","","",""), $body);
 408
 409         if (strlen($title) < strlen($body))
 410                 $body = substr($body, 0, strlen($title));
 411
 412         if (($title != $body) and (substr($title, -3) == "...")) {
 413                 $pos = strrpos($title, "...");
 414                 if ($pos > 0) {
 415                         $title = substr($title, 0, $pos);
 416                         $body = substr($body, 0, $pos);
 417                 }
 418         }
 419
 420         return($title == $body);
 421 }
 422
 423
 424
 425 function get_atom_elements($feed, $item, $contact = array()) {
 426
 427         require_once('library/HTMLPurifier.auto.php');
 428         require_once('include/html2bbcode.php');
 429
 430         $best_photo = array();
 431
 432         $res = array();
 433
 434         $author = $item->get_author();
 435         if($author) {
 436                 $res['author-name'] = unxmlify($author->get_name());
 437                 $res['author-link'] = unxmlify($author->get_link());
 438         }
 439         else {
 440                 $res['author-name'] = unxmlify($feed->get_title());
 441                 $res['author-link'] = unxmlify($feed->get_permalink());
 442         }
 443         $res['uri'] = unxmlify($item->get_id());
 444         $res['title'] = unxmlify($item->get_title());
 445         $res['body'] = unxmlify($item->get_content());
 446         $res['plink'] = unxmlify($item->get_link(0));
 447
 448         if (isset($contact["network"]) AND ($contact["network"] == NETWORK_FEED) AND strstr($res['plink'], ".app.net/")) {
 449                 logger("get_atom_elements: detected app.net posting: ".print_r($res, true), LOGGER_DEBUG);
 450                 $res['title'] = "";
 451                 $res['body'] = nl2br($res['body']);
 452         }
 453
 454         // removing the content of the title if its identically to the body
 455         // This helps with auto generated titles e.g. from tumblr
 456         if (title_is_body($res["title"], $res["body"]))
 457                 $res['title'] = "";
 458
 459         if($res['plink'])
 460                 $base_url = implode('/', array_slice(explode('/',$res['plink']),0,3));
 461         else
 462                 $base_url = '';
 463
 464         // look for a photo. We should check media size and find the best one,
 465         // but for now let's just find any author photo
 466
 467         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 468
 469         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 470                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 471                 foreach($base as $link) {
 472                         if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 473                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 474                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 475                         }
 476                 }
 477         }
 478
 479         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 480
 481         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 482                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 483                 if($base && count($base)) {
 484                         foreach($base as $link) {
 485                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 486                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 487                                 if(!x($res, 'author-avatar') || !$res['author-avatar']) {
 488                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 489                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 490                                 }
 491                         }
 492                 }
 493         }
 494
 495         // No photo/profile-link on the item - look at the feed level
 496
 497         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 498                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 499                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 500                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 501                         foreach($base as $link) {
 502                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 503                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 504                                 if(! $res['author-avatar']) {
 505                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 506                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 507                                 }
 508                         }
 509                 }
 510
 511                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 512
 513                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 514                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 515
 516                         if($base && count($base)) {
 517                                 foreach($base as $link) {
 518                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 519                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 520                                         if(! (x($res,'author-avatar'))) {
 521                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 522                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 523                                         }
 524                                 }
 525                         }
 526                 }
 527         }
 528
 529         $apps = $item->get_item_tags(NAMESPACE_STATUSNET,'notice_info');
 530         if($apps && $apps[0]['attribs']['']['source']) {
 531                 $res['app'] = strip_tags(unxmlify($apps[0]['attribs']['']['source']));
 532                 if($res['app'] === 'web')
 533                         $res['app'] = 'OStatus';
 534         }
 535
 536         // base64 encoded json structure representing Diaspora signature
 537
 538         $dsig = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_signature');
 539         if($dsig) {
 540                 $res['dsprsig'] = unxmlify($dsig[0]['data']);
 541         }
 542
 543         $dguid = $item->get_item_tags(NAMESPACE_DFRN,'diaspora_guid');
 544         if($dguid)
 545                 $res['guid'] = unxmlify($dguid[0]['data']);
 546
 547         $bm = $item->get_item_tags(NAMESPACE_DFRN,'bookmark');
 548         if($bm)
 549                 $res['bookmark'] = ((unxmlify($bm[0]['data']) === 'true') ? 1 : 0);
 550
 551
 552         /**
 553          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 554          */
 555
 556         $have_real_body = false;
 557
 558         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 559         if($rawenv) {
 560                 $have_real_body = true;
 561                 $res['body'] = $rawenv[0]['data'];
 562                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 563                 // make sure nobody is trying to sneak some html tags by us
 564                 $res['body'] = notags(base64url_decode($res['body']));
 565         }
 566
 567
 568         $res['body'] = limit_body_size($res['body']);
 569
 570         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 571         // the content type. Our own network only emits text normally, though it might have been converted to
 572         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 573         // have to assume it is all html and needs to be purified.
 574
 575         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 576         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 577         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 578         // html.
 579
 580         if((strpos($res['body'],'<') !== false) && (strpos($res['body'],'>') !== false)) {
 581
 582                 $res['body'] = reltoabs($res['body'],$base_url);
 583
 584                 $res['body'] = html2bb_video($res['body']);
 585
 586                 $res['body'] = oembed_html2bbcode($res['body']);
 587
 588                 $config = HTMLPurifier_Config::createDefault();
 589                 $config->set('Cache.DefinitionImpl', null);
 590
 591                 // we shouldn't need a whitelist, because the bbcode converter
 592                 // will strip out any unsupported tags.
 593
 594                 $purifier = new HTMLPurifier($config);
 595                 $res['body'] = $purifier->purify($res['body']);
 596
 597                 $res['body'] = @html2bbcode($res['body']);
 598
 599
 600         }
 601         elseif(! $have_real_body) {
 602
 603                 // it's not one of our messages and it has no tags
 604                 // so it's probably just text. We'll escape it just to be safe.
 605
 606                 $res['body'] = escape_tags($res['body']);
 607         }
 608
 609
 610         // this tag is obsolete but we keep it for really old sites
 611
 612         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 613         if($allow && $allow[0]['data'] == 1)
 614                 $res['last-child'] = 1;
 615         else
 616                 $res['last-child'] = 0;
 617
 618         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 619         if($private && intval($private[0]['data']) > 0)
 620                 $res['private'] = intval($private[0]['data']);
 621         else
 622                 $res['private'] = 0;
 623
 624         $extid = $item->get_item_tags(NAMESPACE_DFRN,'extid');
 625         if($extid && $extid[0]['data'])
 626                 $res['extid'] = $extid[0]['data'];
 627
 628         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 629         if($rawlocation)
 630                 $res['location'] = unxmlify($rawlocation[0]['data']);
 631
 632
 633         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 634         if($rawcreated)
 635                 $res['created'] = unxmlify($rawcreated[0]['data']);
 636
 637
 638         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 639         if($rawedited)
 640                 $res['edited'] = unxmlify($rawedited[0]['data']);
 641
 642         if((x($res,'edited')) && (! (x($res,'created'))))
 643                 $res['created'] = $res['edited'];
 644
 645         if(! $res['created'])
 646                 $res['created'] = $item->get_date('c');
 647
 648         if(! $res['edited'])
 649                 $res['edited'] = $item->get_date('c');
 650
 651
 652         // Disallow time travelling posts
 653
 654         $d1 = strtotime($res['created']);
 655         $d2 = strtotime($res['edited']);
 656         $d3 = strtotime('now');
 657
 658         if($d1 > $d3)
 659                 $res['created'] = datetime_convert();
 660         if($d2 > $d3)
 661                 $res['edited'] = datetime_convert();
 662
 663         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 664         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 665                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 666         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 667                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 668         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 669                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 670         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 671                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 672
 673         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 674                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 675
 676                 foreach($base as $link) {
 677                         if(!x($res, 'owner-avatar') || !$res['owner-avatar']) {
 678                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 679                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 680                         }
 681                 }
 682         }
 683
 684         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 685         if($rawgeo)
 686                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 687
 688         if ($contact["network"] == NETWORK_FEED) {
 689                 $res['verb'] = ACTIVITY_POST;
 690                 $res['object-type'] = ACTIVITY_OBJ_NOTE;
 691         }
 692
 693         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 694
 695         // select between supported verbs
 696
 697         if($rawverb) {
 698                 $res['verb'] = unxmlify($rawverb[0]['data']);
 699         }
 700
 701         // translate OStatus unfollow to activity streams if it happened to get selected
 702
 703         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 704                 $res['verb'] = ACTIVITY_UNFOLLOW;
 705
 706         $cats = $item->get_categories();
 707         if($cats) {
 708                 $tag_arr = array();
 709                 foreach($cats as $cat) {
 710                         $term = $cat->get_term();
 711                         if(! $term)
 712                                 $term = $cat->get_label();
 713                         $scheme = $cat->get_scheme();
 714                         if($scheme && $term && stristr($scheme,'X-DFRN:'))
 715                                 $tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
 716                         elseif($term)
 717                                 $tag_arr[] = notags(trim($term));
 718                 }
 719                 $res['tag'] =  implode(',', $tag_arr);
 720         }
 721
 722         $attach = $item->get_enclosures();
 723         if($attach) {
 724                 $att_arr = array();
 725                 foreach($attach as $att) {
 726                         $len   = intval($att->get_length());
 727                         $link  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
 728                         $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
 729                         $type  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
 730                         if(strpos($type,';'))
 731                                 $type = substr($type,0,strpos($type,';'));
 732                         if((! $link) || (strpos($link,'http') !== 0))
 733                                 continue;
 734
 735                         if(! $title)
 736                                 $title = ' ';
 737                         if(! $type)
 738                                 $type = 'application/octet-stream';
 739
 740                         $att_arr[] = '[attach]href="' . $link . '" length="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
 741                 }
 742                 $res['attach'] = implode(',', $att_arr);
 743         }
 744
 745         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 746
 747         if($rawobj) {
 748                 $res['object'] = '<object>' . "\n";
 749                 $child = $rawobj[0]['child'];
 750                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 751                         $res['object-type'] = $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 752                         $res['object'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 753                 }
 754                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 755                         $res['object'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 756                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 757                         $res['object'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 758                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'title') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 759                         $res['object'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 760                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'content') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 761                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 762                         if(! $body)
 763                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 764                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 765                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 766                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 767
 768                                 $body = html2bb_video($body);
 769
 770                                 $config = HTMLPurifier_Config::createDefault();
 771                                 $config->set('Cache.DefinitionImpl', null);
 772
 773                                 $purifier = new HTMLPurifier($config);
 774                                 $body = $purifier->purify($body);
 775                                 $body = html2bbcode($body);
 776                         }
 777
 778                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 779                 }
 780
 781                 $res['object'] .= '</object>' . "\n";
 782         }
 783
 784         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 785
 786         if($rawobj) {
 787                 $res['target'] = '<target>' . "\n";
 788                 $child = $rawobj[0]['child'];
 789                 if($child[NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 790                         $res['target'] .= '<type>' . $child[NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 791                 }
 792                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'id') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 793                         $res['target'] .= '<id>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 794                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'link') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 795                         $res['target'] .= '<link>' . encode_rel_links($child[SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 796                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 797                         $res['target'] .= '<title>' . $child[SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 798                 if(x($child[SIMPLEPIE_NAMESPACE_ATOM_10], 'data') && $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 799                         $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 800                         if(! $body)
 801                                 $body = $child[SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 802                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 803                         $res['target'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 804                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 805
 806                                 $body = html2bb_video($body);
 807
 808                                 $config = HTMLPurifier_Config::createDefault();
 809                                 $config->set('Cache.DefinitionImpl', null);
 810
 811                                 $purifier = new HTMLPurifier($config);
 812                                 $body = $purifier->purify($body);
 813                                 $body = html2bbcode($body);
 814                         }
 815
 816                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 817                 }
 818
 819                 $res['target'] .= '</target>' . "\n";
 820         }
 821
 822         // This is some experimental stuff. By now retweets are shown with "RT:"
 823         // But: There is data so that the message could be shown similar to native retweets
 824         // There is some better way to parse this array - but it didn't worked for me.
 825         $child = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://activitystrea.ms/spec/1.0/"][object][0]["child"];
 826         if (is_array($child)) {
 827                 logger('get_atom_elements: Looking for status.net repeated message');
 828
 829                 $message = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["content"][0]["data"];
 830                 $orig_uri = $child["http://activitystrea.ms/spec/1.0/"]["object"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["id"][0]["data"];
 831                 $author = $child[SIMPLEPIE_NAMESPACE_ATOM_10]["author"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10];
 832                 $uri = $author["uri"][0]["data"];
 833                 $name = $author["name"][0]["data"];
 834                 $avatar = @array_shift($author["link"][2]["attribs"]);
 835                 $avatar = $avatar["href"];
 836
 837                 if (($name != "") and ($uri != "") and ($avatar != "") and ($message != "")) {
 838                         logger('get_atom_elements: fixing sender of repeated message.');
 839
 840                         if (!intval(get_config('system','wall-to-wall_share'))) {
 841                                 $prefix = "[share author='".str_replace("'", "&#039;",$name).
 842                                                 "' profile='".$uri.
 843                                                 "' avatar='".$avatar.
 844                                                 "' link='".$orig_uri."']";
 845
 846                                 $res["body"] = $prefix.html2bbcode($message)."[/share]";
 847                         } else {
 848                                 $res["owner-name"] = $res["author-name"];
 849                                 $res["owner-link"] = $res["author-link"];
 850                                 $res["owner-avatar"] = $res["author-avatar"];
 851
 852                                 $res["author-name"] = $name;
 853                                 $res["author-link"] = $uri;
 854                                 $res["author-avatar"] = $avatar;
 855
 856                                 $res["body"] = html2bbcode($message);
 857                         }
 858                 }
 859         }
 860
 861         // Search for ostatus conversation url
 862         $links = $item->feed->data["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["feed"][0]["child"][SIMPLEPIE_NAMESPACE_ATOM_10]["entry"][0]["child"]["http://www.w3.org/2005/Atom"]["link"];
 863
 864         if (is_array($links)) {
 865                 foreach ($links as $link) {
 866                         $conversation = array_shift($link["attribs"]);
 867
 868                         if ($conversation["rel"] == "ostatus:conversation") {
 869                                 $res["ostatus_conversation"] = $conversation["href"];
 870                                 logger('get_atom_elements: found conversation url '.$res["ostatus_conversation"]);
 871                         }
 872                 };
 873         }
 874
 875         if (isset($contact["network"]) AND ($contact["network"] == NETWORK_FEED) AND $contact['fetch_further_information']) {
 876                 $preview = "";
 877
 878                 // Handle enclosures and treat them as preview picture
 879                 if (isset($attach))
 880                         foreach ($attach AS $attachment)
 881                                 if ($attachment->type == "image/jpeg")
 882                                         $preview = $attachment->link;
 883
 884                 $res["body"] = $res["title"].add_page_info($res['plink'], false, $preview, ($contact['fetch_further_information'] == 2), $contact['ffi_keyword_blacklist']);
 885                 $res["tag"] = add_page_keywords($res['plink'], false, $preview, ($contact['fetch_further_information'] == 2), $contact['ffi_keyword_blacklist']);
 886                 $res["title"] = "";
 887                 $res["object-type"] = ACTIVITY_OBJ_BOOKMARK;
 888                 unset($res["attach"]);
 889         } elseif (isset($contact["network"]) AND ($contact["network"] == NETWORK_OSTATUS))
 890                 $res["body"] = add_page_info_to_body($res["body"]);
 891         elseif (isset($contact["network"]) AND ($contact["network"] == NETWORK_FEED) AND strstr($res['plink'], ".app.net/")) {
 892                 $res["body"] = add_page_info_to_body($res["body"]);
 893         }
 894
 895         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 896
 897         call_hooks('parse_atom', $arr);
 898
 899         return $res;
 900 }
 901
 902 function add_page_info_data($data) {
 903         call_hooks('page_info_data', $data);
 904
 905         // It maybe is a rich content, but if it does have everything that a link has,
 906         // then treat it that way
 907         if (($data["type"] == "rich") AND is_string($data["title"]) AND
 908                 is_string($data["text"]) AND (sizeof($data["images"]) > 0))
 909                 $data["type"] = "link";
 910
 911         if ((($data["type"] != "link") AND ($data["type"] != "video") AND ($data["type"] != "photo")) OR ($data["title"] == $url))
 912                 return("");
 913
 914         if ($no_photos AND ($data["type"] == "photo"))
 915                 return("");
 916
 917         // If the link contains BBCode stuff, make a short link out of this to avoid parsing problems
 918         if (strpos($data["url"], '[') OR strpos($data["url"], ']')) {
 919                 require_once("include/network.php");
 920                 $data["url"] = short_link($data["url"]);
 921         }
 922
 923         if (($data["type"] != "photo") AND is_string($data["title"]))
 924                 $text .= "[bookmark=".$data["url"]."]".trim($data["title"])."[/bookmark]";
 925
 926         if (($data["type"] != "video") AND ($photo != ""))
 927                 $text .= '[img]'.$photo.'[/img]';
 928         elseif (($data["type"] != "video") AND (sizeof($data["images"]) > 0)) {
 929                 $imagedata = $data["images"][0];
 930                 $text .= '[img]'.$imagedata["src"].'[/img]';
 931         }
 932
 933         if (($data["type"] != "photo") AND is_string($data["text"]))
 934                 $text .= "[quote]".$data["text"]."[/quote]";
 935
 936         $hashtags = "";
 937         if (isset($data["keywords"]) AND count($data["keywords"])) {
 938                 $a = get_app();
 939                 $hashtags = "\n";
 940                 foreach ($data["keywords"] AS $keyword) {
 941                         $hashtag = str_replace(array(" ", "+", "/", ".", "#", "'"),
 942                                                 array("","", "", "", "", ""), $keyword);
 943                         $hashtags .= "#[url=".$a->get_baseurl()."/search?tag=".rawurlencode($hashtag)."]".$hashtag."[/url] ";
 944                 }
 945         }
 946
 947         return("\n[class=type-".$data["type"]."]".$text."[/class]".$hashtags);
 948 }
 949
 950 function query_page_info($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
 951         require_once("mod/parse_url.php");
 952
 953         $data = Cache::get("parse_url:".$url);
 954         if (is_null($data)){
 955                 $data = parseurl_getsiteinfo($url, true);
 956                 Cache::set("parse_url:".$url,serialize($data));
 957         } else
 958                 $data = unserialize($data);
 959
 960         if ($photo != "")
 961                 $data["images"][0]["src"] = $photo;
 962
 963         logger('fetch page info for '.$url.' '.print_r($data, true), LOGGER_DEBUG);
 964
 965         if (!$keywords AND isset($data["keywords"]))
 966                 unset($data["keywords"]);
 967
 968         if (($keyword_blacklist != "") AND isset($data["keywords"])) {
 969                 $list = explode(",", $keyword_blacklist);
 970                 foreach ($list AS $keyword) {
 971                         $keyword = trim($keyword);
 972                         $index = array_search($keyword, $data["keywords"]);
 973                         if ($index !== false)
 974                                 unset($data["keywords"][$index]);
 975                 }
 976         }
 977
 978         return($data);
 979 }
 980
 981 function add_page_keywords($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
 982         $data = query_page_info($url, $no_photos, $photo, $keywords, $keyword_blacklist);
 983
 984         $tags = "";
 985         if (isset($data["keywords"]) AND count($data["keywords"])) {
 986                 $a = get_app();
 987                 foreach ($data["keywords"] AS $keyword) {
 988                         $hashtag = str_replace(array(" ", "+", "/", ".", "#", "'"),
 989                                                 array("","", "", "", "", ""), $keyword);
 990
 991                         if ($tags != "")
 992                                 $tags .= ",";
 993
 994                         $tags .= "#[url=".$a->get_baseurl()."/search?tag=".rawurlencode($hashtag)."]".$hashtag."[/url]";
 995                 }
 996         }
 997
 998         return($tags);
 999 }
1000
1001 function add_page_info($url, $no_photos = false, $photo = "", $keywords = false, $keyword_blacklist = "") {
1002         $data = query_page_info($url, $no_photos, $photo, $keywords, $keyword_blacklist);
1003
1004         $text = add_page_info_data($data);
1005
1006         return($text);
1007 }
1008
1009 function add_page_info_to_body($body, $texturl = false, $no_photos = false) {
1010
1011         logger('add_page_info_to_body: fetch page info for body '.$body, LOGGER_DEBUG);
1012
1013         $URLSearchString = "^\[\]";
1014
1015         // Adding these spaces is a quick hack due to my problems with regular expressions :)
1016         preg_match("/[^!#@]\[url\]([$URLSearchString]*)\[\/url\]/ism", " ".$body, $matches);
1017
1018         if (!$matches)
1019                 preg_match("/[^!#@]\[url\=([$URLSearchString]*)\](.*?)\[\/url\]/ism", " ".$body, $matches);
1020
1021         // Convert urls without bbcode elements
1022         if (!$matches AND $texturl) {
1023                 preg_match("/([^\]\='".'"'."]|^)(https?\:\/\/[a-zA-Z0-9\:\/\-\?\&\;\.\=\_\~\#\%\$\!\+\,]+)/ism", " ".$body, $matches);
1024
1025                 // Yeah, a hack. I really hate regular expressions :)
1026                 if ($matches)
1027                         $matches[1] = $matches[2];
1028         }
1029
1030         if ($matches)
1031                 $footer = add_page_info($matches[1], $no_photos);
1032
1033         // Remove the link from the body if the link is attached at the end of the post
1034         if (isset($footer) AND (trim($footer) != "") AND (strpos($footer, $matches[1]))) {
1035                 $removedlink = trim(str_replace($matches[1], "", $body));
1036                 if (($removedlink == "") OR strstr($body, $removedlink))
1037                         $body = $removedlink;
1038
1039                 $url = str_replace(array('/', '.'), array('\/', '\.'), $matches[1]);
1040                 $removedlink = preg_replace("/\[url\=".$url."\](.*?)\[\/url\]/ism", '', $body);
1041                 if (($removedlink == "") OR strstr($body, $removedlink))
1042                         $body = $removedlink;
1043         }
1044
1045         // Add the page information to the bottom
1046         if (isset($footer) AND (trim($footer) != ""))
1047                 $body .= $footer;
1048
1049         return $body;
1050 }
1051
1052 function encode_rel_links($links) {
1053         $o = '';
1054         if(! ((is_array($links)) && (count($links))))
1055                 return $o;
1056         foreach($links as $link) {
1057                 $o .= '<link ';
1058                 if($link['attribs']['']['rel'])
1059                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
1060                 if($link['attribs']['']['type'])
1061                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
1062                 if($link['attribs']['']['href'])
1063                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
1064                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
1065                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
1066                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
1067                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
1068                 $o .= ' />' . "\n" ;
1069         }
1070         return xmlify($o);
1071 }
1072
1073
1074
1075 function item_store($arr,$force_parent = false, $notify = false, $dontcache = false) {
1076
1077         // If it is a posting where users should get notifications, then define it as wall posting
1078         if ($notify) {
1079                 $arr['wall'] = 1;
1080                 $arr['type'] = 'wall';
1081                 $arr['origin'] = 1;
1082                 $arr['last-child'] = 1;
1083                 $arr['network'] = NETWORK_DFRN;
1084         }
1085
1086         // If a Diaspora signature structure was passed in, pull it out of the
1087         // item array and set it aside for later storage.
1088
1089         $dsprsig = null;
1090         if(x($arr,'dsprsig')) {
1091                 $dsprsig = json_decode(base64_decode($arr['dsprsig']));
1092                 unset($arr['dsprsig']);
1093         }
1094
1095         // if an OStatus conversation url was passed in, it is stored and then
1096         // removed from the array.
1097         $ostatus_conversation = null;
1098
1099         if (isset($arr["ostatus_conversation"])) {
1100                 $ostatus_conversation = $arr["ostatus_conversation"];
1101                 unset($arr["ostatus_conversation"]);
1102         }
1103
1104         if(x($arr, 'gravity'))
1105                 $arr['gravity'] = intval($arr['gravity']);
1106         elseif($arr['parent-uri'] === $arr['uri'])
1107                 $arr['gravity'] = 0;
1108         elseif(activity_match($arr['verb'],ACTIVITY_POST))
1109                 $arr['gravity'] = 6;
1110         else
1111                 $arr['gravity'] = 6;   // extensible catchall
1112
1113         if(! x($arr,'type'))
1114                 $arr['type']      = 'remote';
1115
1116
1117
1118         /* check for create  date and expire time */
1119         $uid = intval($arr['uid']);
1120         $r = q("SELECT expire FROM user WHERE uid = %d", $uid);
1121         if(count($r)) {
1122                 $expire_interval = $r[0]['expire'];
1123                 if ($expire_interval>0) {
1124                         $expire_date =  new DateTime( '- '.$expire_interval.' days', new DateTimeZone('UTC'));
1125                         $created_date = new DateTime($arr['created'], new DateTimeZone('UTC'));
1126                         if ($created_date < $expire_date) {
1127                                 logger('item-store: item created ('.$arr['created'].') before expiration time ('.$expire_date->format(DateTime::W3C).'). ignored. ' . print_r($arr,true), LOGGER_DEBUG);
1128                                 return 0;
1129                         }
1130                 }
1131         }
1132
1133         // If there is no guid then take the same guid that was taken before for the same uri
1134         if ((trim($arr['guid']) == "") AND (trim($arr['uri']) != "")) {
1135                 logger('item_store: checking for an existing guid for uri '.$arr['uri'], LOGGER_DEBUG);
1136                 $r = q("SELECT `guid` FROM `item` WHERE `uri` = '%s' AND `guid` != '' LIMIT 1",
1137                         dbesc(trim($arr['uri']))
1138                 );
1139
1140                 if(count($r)) {
1141                         $arr['guid'] = $r[0]["guid"];
1142                         logger('item_store: found guid '.$arr['guid'].' for uri '.$arr['uri'], LOGGER_DEBUG);
1143                 }
1144         }
1145
1146         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
1147         // Deactivated, since the bbcode parser can handle with it - and it destroys posts with some smileys that contain "<"
1148         //if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
1149         //      $arr['body'] = strip_tags($arr['body']);
1150
1151
1152         if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
1153                 require_once('library/langdet/Text/LanguageDetect.php');
1154                 $naked_body = preg_replace('/\[(.+?)\]/','',$arr['body']);
1155                 $l = new Text_LanguageDetect;
1156                 //$lng = $l->detectConfidence($naked_body);
1157                 //$arr['postopts'] = (($lng['language']) ? 'lang=' . $lng['language'] . ';' . $lng['confidence'] : '');
1158                 $lng = $l->detect($naked_body, 3);
1159
1160                 if (sizeof($lng) > 0) {
1161                         $postopts = "";
1162
1163                         foreach ($lng as $language => $score) {
1164                                 if ($postopts == "")
1165                                         $postopts = "lang=";
1166                                 else
1167                                         $postopts .= ":";
1168
1169                                 $postopts .= $language.";".$score;
1170                         }
1171                         $arr['postopts'] = $postopts;
1172                 }
1173         }
1174
1175         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
1176         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
1177         $arr['extid']         = ((x($arr,'extid'))         ? notags(trim($arr['extid']))         : '');
1178         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
1179         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
1180         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
1181         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
1182         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
1183         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
1184         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
1185         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
1186         $arr['commented']     = datetime_convert();
1187         $arr['received']      = datetime_convert();
1188         $arr['changed']       = datetime_convert();
1189         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
1190         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
1191         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
1192         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
1193         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
1194         $arr['deleted']       = 0;
1195         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
1196         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
1197         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
1198         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
1199         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
1200         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
1201         $arr['plink']         = ((x($arr,'plink'))         ? notags(trim($arr['plink']))         : '');
1202         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
1203         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
1204         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
1205         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
1206         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
1207         $arr['bookmark']      = ((x($arr,'bookmark'))      ? intval($arr['bookmark'])            : 0 );
1208         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
1209         $arr['tag']           = ((x($arr,'tag'))           ? notags(trim($arr['tag']))           : '');
1210         $arr['attach']        = ((x($arr,'attach'))        ? notags(trim($arr['attach']))        : '');
1211         $arr['app']           = ((x($arr,'app'))           ? notags(trim($arr['app']))           : '');
1212         $arr['origin']        = ((x($arr,'origin'))        ? intval($arr['origin'])              : 0 );
1213         $arr['guid']          = ((x($arr,'guid'))          ? notags(trim($arr['guid']))          : get_guid(30));
1214         $arr['network']       = ((x($arr,'network'))       ? trim($arr['network'])               : '');
1215         $arr['postopts']      = ((x($arr,'postopts'))      ? trim($arr['postopts'])              : '');
1216         $arr['resource-id']   = ((x($arr,'resource-id'))   ? trim($arr['resource-id'])           : '');
1217         $arr['event-id']      = ((x($arr,'event-id'))      ? intval($arr['event-id'])            : 0 );
1218         $arr['inform']        = ((x($arr,'inform'))        ? trim($arr['inform'])                : '');
1219         $arr['file']          = ((x($arr,'file'))          ? trim($arr['file'])                  : '');
1220
1221         if ($arr['plink'] == "") {
1222                 $a = get_app();
1223                 $arr['plink'] = $a->get_baseurl().'/display/'.urlencode($arr['guid']);
1224         }
1225
1226         if ($arr['network'] == "") {
1227                 $r = q("SELECT `network` FROM `contact` WHERE `id` = %d AND `uid` = %d LIMIT 1",
1228                         intval($arr['contact-id']),
1229                         intval($arr['uid'])
1230                 );
1231
1232                 if(count($r))
1233                         $arr['network'] = $r[0]["network"];
1234
1235                 // Fallback to friendica (why is it empty in some cases?)
1236                 if ($arr['network'] == "")
1237                         $arr['network'] = NETWORK_DFRN;
1238
1239                 logger("item_store: Set network to ".$arr["network"]." for ".$arr["uri"], LOGGER_DEBUG);
1240         }
1241
1242         $arr['thr-parent'] = $arr['parent-uri'];
1243         if($arr['parent-uri'] === $arr['uri']) {
1244                 $parent_id = 0;
1245                 $parent_deleted = 0;
1246                 $allow_cid = $arr['allow_cid'];
1247                 $allow_gid = $arr['allow_gid'];
1248                 $deny_cid  = $arr['deny_cid'];
1249                 $deny_gid  = $arr['deny_gid'];
1250                 $notify_type = 'wall-new';
1251         }
1252         else {
1253
1254                 // find the parent and snarf the item id and ACLs
1255                 // and anything else we need to inherit
1256
1257                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC LIMIT 1",
1258                         dbesc($arr['parent-uri']),
1259                         intval($arr['uid'])
1260                 );
1261
1262                 if(count($r)) {
1263
1264                         // is the new message multi-level threaded?
1265                         // even though we don't support it now, preserve the info
1266                         // and re-attach to the conversation parent.
1267
1268                         if($r[0]['uri'] != $r[0]['parent-uri']) {
1269                                 $arr['parent-uri'] = $r[0]['parent-uri'];
1270                                 $z = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `parent-uri` = '%s' AND `uid` = %d
1271                                         ORDER BY `id` ASC LIMIT 1",
1272                                         dbesc($r[0]['parent-uri']),
1273                                         dbesc($r[0]['parent-uri']),
1274                                         intval($arr['uid'])
1275                                 );
1276                                 if($z && count($z))
1277                                         $r = $z;
1278                         }
1279
1280                         $parent_id      = $r[0]['id'];
1281                         $parent_deleted = $r[0]['deleted'];
1282                         $allow_cid      = $r[0]['allow_cid'];
1283                         $allow_gid      = $r[0]['allow_gid'];
1284                         $deny_cid       = $r[0]['deny_cid'];
1285                         $deny_gid       = $r[0]['deny_gid'];
1286                         $arr['wall']    = $r[0]['wall'];
1287                         $notify_type    = 'comment-new';
1288
1289                         // if the parent is private, force privacy for the entire conversation
1290                         // This differs from the above settings as it subtly allows comments from
1291                         // email correspondents to be private even if the overall thread is not.
1292
1293                         if($r[0]['private'])
1294                                 $arr['private'] = $r[0]['private'];
1295
1296                         // Edge case. We host a public forum that was originally posted to privately.
1297                         // The original author commented, but as this is a comment, the permissions
1298                         // weren't fixed up so it will still show the comment as private unless we fix it here.
1299
1300                         if((intval($r[0]['forum_mode']) == 1) && (! $r[0]['private']))
1301                                 $arr['private'] = 0;
1302
1303
1304                         // If its a post from myself then tag the thread as "mention"
1305                         logger("item_store: Checking if parent ".$parent_id." has to be tagged as mention for user ".$arr['uid'], LOGGER_DEBUG);
1306                         $u = q("select * from user where uid = %d limit 1", intval($arr['uid']));
1307                         if(count($u)) {
1308                                 $a = get_app();
1309                                 $self = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1310                                 logger("item_store: 'myself' is ".$self." for parent ".$parent_id." checking against ".$arr['author-link']." and ".$arr['owner-link'], LOGGER_DEBUG);
1311                                 if ((normalise_link($arr['author-link']) == $self) OR (normalise_link($arr['owner-link']) == $self)) {
1312                                         q("UPDATE `thread` SET `mention` = 1 WHERE `iid` = %d", intval($parent_id));
1313                                         logger("item_store: tagged thread ".$parent_id." as mention for user ".$self, LOGGER_DEBUG);
1314                                 }
1315                         }
1316                 }
1317                 else {
1318
1319                         // Allow one to see reply tweets from status.net even when
1320                         // we don't have or can't see the original post.
1321
1322                         if($force_parent) {
1323                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
1324                                 $parent_id = 0;
1325                                 $arr['parent-uri'] = $arr['uri'];
1326                                 $arr['gravity'] = 0;
1327                         }
1328                         else {
1329                                 logger('item_store: item parent was not found - ignoring item');
1330                                 return 0;
1331                         }
1332
1333                         $parent_deleted = 0;
1334                 }
1335         }
1336
1337         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1338                 dbesc($arr['uri']),
1339                 intval($arr['uid'])
1340         );
1341         if($r && count($r)) {
1342                 logger('item-store: duplicate item ignored. ' . print_r($arr,true));
1343                 return 0;
1344         }
1345
1346         call_hooks('post_remote',$arr);
1347
1348         if(x($arr,'cancel')) {
1349                 logger('item_store: post cancelled by plugin.');
1350                 return 0;
1351         }
1352
1353         // Store the unescaped version
1354         $unescaped = $arr;
1355
1356         dbesc_array($arr);
1357
1358         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
1359
1360         $r = dbq("INSERT INTO `item` (`"
1361                         . implode("`, `", array_keys($arr))
1362                         . "`) VALUES ('"
1363                         . implode("', '", array_values($arr))
1364                         . "')" );
1365
1366         // And restore it
1367         $arr = $unescaped;
1368
1369         // find the item we just created
1370         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d ORDER BY `id` ASC ",
1371                 dbesc($arr['uri']),
1372                 intval($arr['uid'])
1373         );
1374
1375         if(count($r)) {
1376                 $current_post = $r[0]['id'];
1377                 logger('item_store: created item ' . $current_post);
1378
1379                 // Add every contact to the global contact table
1380                 // Contacts from the statusnet connector are also added since you could add them in OStatus as well.
1381                 if (!$arr['private'] AND in_array($arr["network"],
1382                         array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, NETWORK_STATUSNET, ""))) {
1383                         poco_check($arr["author-link"], $arr["author-name"], $arr["network"], $arr["author-avatar"], "", "", "", "", "", $arr["received"], $arr["contact-id"], $arr["uid"]);
1384
1385                         // Maybe its a body with a shared item? Then extract a global contact from it.
1386                         poco_contact_from_body($arr["body"], $arr["received"], $arr["contact-id"], $arr["uid"]);
1387                 }
1388
1389                 // Set "success_update" to the date of the last time we heard from this contact
1390                 // This can be used to filter for inactive contacts and poco.
1391                 // Only do this for public postings to avoid privacy problems, since poco data is public.
1392                 // Don't set this value if it isn't from the owner (could be an author that we don't know)
1393                 if (!$arr['private'] AND (($arr["author-link"] === $arr["owner-link"]) OR ($arr["parent-uri"] === $arr["uri"])))
1394                         q("UPDATE `contact` SET `success_update` = '%s' WHERE `id` = %d",
1395                                 dbesc($arr['received']),
1396                                 intval($arr['contact-id'])
1397                         );
1398
1399                 // Only check for notifications on start posts
1400                 if ($arr['parent-uri'] === $arr['uri']) {
1401                         add_thread($r[0]['id']);
1402                         logger('item_store: Check notification for contact '.$arr['contact-id'].' and post '.$current_post, LOGGER_DEBUG);
1403
1404                         // Send a notification for every new post?
1405                         $r = q("SELECT `notify_new_posts` FROM `contact` WHERE `id` = %d AND `uid` = %d AND `notify_new_posts` LIMIT 1",
1406                                 intval($arr['contact-id']),
1407                                 intval($arr['uid'])
1408                         );
1409
1410                         if(count($r)) {
1411                                 logger('item_store: Send notification for contact '.$arr['contact-id'].' and post '.$current_post, LOGGER_DEBUG);
1412                                 $u = q("SELECT * FROM user WHERE uid = %d LIMIT 1",
1413                                         intval($arr['uid']));
1414
1415                                 $item = q("SELECT * FROM `item` WHERE `id` = %d AND `uid` = %d",
1416                                         intval($current_post),
1417                                         intval($arr['uid'])
1418                                 );
1419
1420                                 $a = get_app();
1421
1422                                 require_once('include/enotify.php');
1423                                 notification(array(
1424                                         'type'         => NOTIFY_SHARE,
1425                                         'notify_flags' => $u[0]['notify-flags'],
1426                                         'language'     => $u[0]['language'],
1427                                         'to_name'      => $u[0]['username'],
1428                                         'to_email'     => $u[0]['email'],
1429                                         'uid'          => $u[0]['uid'],
1430                                         'item'         => $item[0],
1431                                         'link'         => $a->get_baseurl().'/display/'.urlencode($arr['guid']),
1432                                         'source_name'  => $item[0]['author-name'],
1433                                         'source_link'  => $item[0]['author-link'],
1434                                         'source_photo' => $item[0]['author-avatar'],
1435                                         'verb'         => ACTIVITY_TAG,
1436                                         'otype'        => 'item'
1437                                 ));
1438                                 logger('item_store: Notification sent for contact '.$arr['contact-id'].' and post '.$current_post, LOGGER_DEBUG);
1439                         }
1440                 }
1441
1442         } else {
1443                 logger('item_store: could not locate created item');
1444                 return 0;
1445         }
1446         if(count($r) > 1) {
1447                 logger('item_store: duplicated post occurred. Removing duplicates.');
1448                 q("DELETE FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `id` != %d ",
1449                         dbesc($arr['uri']),
1450                         intval($arr['uid']),
1451                         intval($current_post)
1452                 );
1453         }
1454
1455         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
1456                 $parent_id = $current_post;
1457
1458         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
1459                 $private = 1;
1460         else
1461                 $private = $arr['private'];
1462
1463         // Set parent id - and also make sure to inherit the parent's ACLs.
1464
1465         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
1466                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d",
1467                 intval($parent_id),
1468                 dbesc($allow_cid),
1469                 dbesc($allow_gid),
1470                 dbesc($deny_cid),
1471                 dbesc($deny_gid),
1472                 intval($private),
1473                 intval($parent_deleted),
1474                 intval($current_post)
1475         );
1476
1477         // Complete ostatus threads
1478         if ($ostatus_conversation)
1479                 complete_conversation($current_post, $ostatus_conversation);
1480
1481         $arr['id'] = $current_post;
1482         $arr['parent'] = $parent_id;
1483         $arr['allow_cid'] = $allow_cid;
1484         $arr['allow_gid'] = $allow_gid;
1485         $arr['deny_cid'] = $deny_cid;
1486         $arr['deny_gid'] = $deny_gid;
1487         $arr['private'] = $private;
1488         $arr['deleted'] = $parent_deleted;
1489
1490         // update the commented timestamp on the parent
1491
1492         q("UPDATE `item` set `commented` = '%s', `changed` = '%s' WHERE `id` = %d",
1493                 dbesc(datetime_convert()),
1494                 dbesc(datetime_convert()),
1495                 intval($parent_id)
1496         );
1497         update_thread($parent_id);
1498
1499         if($dsprsig) {
1500                 q("insert into sign (`iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
1501                         intval($current_post),
1502                         dbesc($dsprsig->signed_text),
1503                         dbesc($dsprsig->signature),
1504                         dbesc($dsprsig->signer)
1505                 );
1506         }
1507
1508
1509         /**
1510          * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
1511          */
1512
1513         if($arr['last-child']) {
1514                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
1515                         dbesc($arr['uri']),
1516                         intval($arr['uid']),
1517                         intval($current_post)
1518                 );
1519         }
1520
1521         $deleted = tag_deliver($arr['uid'],$current_post);
1522
1523         // current post can be deleted if is for a communuty page and no mention are
1524         // in it.
1525         if (!$deleted AND !$dontcache) {
1526
1527                 // Store the fresh generated item into the cache
1528                 $cachefile = get_cachefile(urlencode($arr["guid"])."-".hash("md5", $arr['body']));
1529
1530                 if (($cachefile != '') AND !file_exists($cachefile)) {
1531                         $s = prepare_text($arr['body']);
1532                         $a = get_app();
1533                         $stamp1 = microtime(true);
1534                         file_put_contents($cachefile, $s);
1535                         $a->save_timestamp($stamp1, "file");
1536                         logger('item_store: put item '.$current_post.' into cachefile '.$cachefile);
1537                 }
1538
1539                 $r = q('SELECT * FROM `item` WHERE id = %d', intval($current_post));
1540                 if (count($r) == 1) {
1541                         call_hooks('post_remote_end', $r[0]);
1542                 } else {
1543                         logger('item_store: new item not found in DB, id ' . $current_post);
1544                 }
1545         }
1546
1547         create_tags_from_item($current_post, $dontcache);
1548         create_files_from_item($current_post);
1549
1550         if ($notify)
1551                 proc_run('php', "include/notifier.php", $notify_type, $current_post);
1552
1553         return $current_post;
1554 }
1555
1556 function get_item_guid($id) {
1557         $r = q("SELECT `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($id));
1558         if (count($r))
1559                 return($r[0]["guid"]);
1560         else
1561                 return("");
1562 }
1563
1564 function get_item_id($guid, $uid = 0) {
1565
1566         $nick = "";
1567         $id = 0;
1568
1569         if ($uid == 0)
1570                 $uid == local_user();
1571
1572         // Does the given user have this item?
1573         if ($uid) {
1574                 $r = q("SELECT `item`.`id`, `user`.`nickname` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1575                         WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 and `item`.`moderated` = 0
1576                                 AND `item`.`guid` = '%s' AND `item`.`uid` = %d", dbesc($guid), intval($uid));
1577                 if (count($r)) {
1578                         $id = $r[0]["id"];
1579                         $nick = $r[0]["nickname"];
1580                 }
1581         }
1582
1583         // Or is it anywhere on the server?
1584         if ($nick == "") {
1585                 $r = q("SELECT `item`.`id`, `user`.`nickname` FROM `item` INNER JOIN `user` ON `user`.`uid` = `item`.`uid`
1586                         WHERE `item`.`visible` = 1 AND `item`.`deleted` = 0 and `item`.`moderated` = 0
1587                                 AND `item`.`allow_cid` = ''  AND `item`.`allow_gid` = ''
1588                                 AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1589                                 AND `item`.`private` = 0 AND `item`.`wall` = 1
1590                                 AND `item`.`guid` = '%s'", dbesc($guid));
1591                 if (count($r)) {
1592                         $id = $r[0]["id"];
1593                         $nick = $r[0]["nickname"];
1594                 }
1595         }
1596         return(array("nick" => $nick, "id" => $id));
1597 }
1598
1599 // return - test
1600 function get_item_contact($item,$contacts) {
1601         if(! count($contacts) || (! is_array($item)))
1602                 return false;
1603         foreach($contacts as $contact) {
1604                 if($contact['id'] == $item['contact-id']) {
1605                         return $contact;
1606                         break; // NOTREACHED
1607                 }
1608         }
1609         return false;
1610 }
1611
1612 /**
1613  * look for mention tags and setup a second delivery chain for forum/community posts if appropriate
1614  * @param int $uid
1615  * @param int $item_id
1616  * @return bool true if item was deleted, else false
1617  */
1618 function tag_deliver($uid,$item_id) {
1619
1620         //
1621
1622         $a = get_app();
1623
1624         $mention = false;
1625
1626         $u = q("select * from user where uid = %d limit 1",
1627                 intval($uid)
1628         );
1629         if(! count($u))
1630                 return;
1631
1632         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1633         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1634
1635
1636         $i = q("select * from item where id = %d and uid = %d limit 1",
1637                 intval($item_id),
1638                 intval($uid)
1639         );
1640         if(! count($i))
1641                 return;
1642
1643         $item = $i[0];
1644
1645         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1646
1647         // Diaspora uses their own hardwired link URL in @-tags
1648         // instead of the one we supply with webfinger
1649
1650         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1651
1652         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1653         if($cnt) {
1654                 foreach($matches as $mtch) {
1655                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1656                                 $mention = true;
1657                                 logger('tag_deliver: mention found: ' . $mtch[2]);
1658                         }
1659                 }
1660         }
1661
1662         if(! $mention){
1663                 if ( ($community_page || $prvgroup) &&
1664                           (!$item['wall']) && (!$item['origin']) && ($item['id'] == $item['parent'])){
1665                         // mmh.. no mention.. community page or private group... no wall.. no origin.. top-post (not a comment)
1666                         // delete it!
1667                         logger("tag_deliver: no-mention top-level post to communuty or private group. delete.");
1668                         q("DELETE FROM item WHERE id = %d and uid = %d",
1669                                 intval($item_id),
1670                                 intval($uid)
1671                         );
1672                         return true;
1673                 }
1674                 return;
1675         }
1676
1677
1678         // send a notification
1679
1680         // use a local photo if we have one
1681
1682         $r = q("select * from contact where uid = %d and nurl = '%s' limit 1",
1683                 intval($u[0]['uid']),
1684                 dbesc(normalise_link($item['author-link']))
1685         );
1686         $photo = (($r && count($r)) ? $r[0]['thumb'] : $item['author-avatar']);
1687
1688
1689         require_once('include/enotify.php');
1690         notification(array(
1691                 'type'         => NOTIFY_TAGSELF,
1692                 'notify_flags' => $u[0]['notify-flags'],
1693                 'language'     => $u[0]['language'],
1694                 'to_name'      => $u[0]['username'],
1695                 'to_email'     => $u[0]['email'],
1696                 'uid'          => $u[0]['uid'],
1697                 'item'         => $item,
1698                 'link'         => $a->get_baseurl() . '/display/'.urlencode(get_item_guid($item['id'])),
1699                 'source_name'  => $item['author-name'],
1700                 'source_link'  => $item['author-link'],
1701                 'source_photo' => $photo,
1702                 'verb'         => ACTIVITY_TAG,
1703                 'otype'        => 'item',
1704                 'parent'       => $item['parent']
1705         ));
1706
1707
1708         $arr = array('item' => $item, 'user' => $u[0], 'contact' => $r[0]);
1709
1710         call_hooks('tagged', $arr);
1711
1712         if((! $community_page) && (! $prvgroup))
1713                 return;
1714
1715
1716         // tgroup delivery - setup a second delivery chain
1717         // prevent delivery looping - only proceed
1718         // if the message originated elsewhere and is a top-level post
1719
1720         if(($item['wall']) || ($item['origin']) || ($item['id'] != $item['parent']))
1721                 return;
1722
1723         // now change this copy of the post to a forum head message and deliver to all the tgroup members
1724
1725
1726         $c = q("select name, url, thumb from contact where self = 1 and uid = %d limit 1",
1727                 intval($u[0]['uid'])
1728         );
1729         if(! count($c))
1730                 return;
1731
1732         // also reset all the privacy bits to the forum default permissions
1733
1734         $private = ($u[0]['allow_cid'] || $u[0]['allow_gid'] || $u[0]['deny_cid'] || $u[0]['deny_gid']) ? 1 : 0;
1735
1736         $forum_mode = (($prvgroup) ? 2 : 1);
1737
1738         q("update item set wall = 1, origin = 1, forum_mode = %d, `owner-name` = '%s', `owner-link` = '%s', `owner-avatar` = '%s',
1739                 `private` = %d, `allow_cid` = '%s', `allow_gid` = '%s', `deny_cid` = '%s', `deny_gid` = '%s'  where id = %d",
1740                 intval($forum_mode),
1741                 dbesc($c[0]['name']),
1742                 dbesc($c[0]['url']),
1743                 dbesc($c[0]['thumb']),
1744                 intval($private),
1745                 dbesc($u[0]['allow_cid']),
1746                 dbesc($u[0]['allow_gid']),
1747                 dbesc($u[0]['deny_cid']),
1748                 dbesc($u[0]['deny_gid']),
1749                 intval($item_id)
1750         );
1751         update_thread($item_id);
1752
1753         proc_run('php','include/notifier.php','tgroup',$item_id);
1754
1755 }
1756
1757
1758
1759 function tgroup_check($uid,$item) {
1760
1761         $a = get_app();
1762
1763         $mention = false;
1764
1765         // check that the message originated elsewhere and is a top-level post
1766
1767         if(($item['wall']) || ($item['origin']) || ($item['uri'] != $item['parent-uri']))
1768                 return false;
1769
1770
1771         $u = q("select * from user where uid = %d limit 1",
1772                 intval($uid)
1773         );
1774         if(! count($u))
1775                 return false;
1776
1777         $community_page = (($u[0]['page-flags'] == PAGE_COMMUNITY) ? true : false);
1778         $prvgroup = (($u[0]['page-flags'] == PAGE_PRVGROUP) ? true : false);
1779
1780
1781         $link = normalise_link($a->get_baseurl() . '/profile/' . $u[0]['nickname']);
1782
1783         // Diaspora uses their own hardwired link URL in @-tags
1784         // instead of the one we supply with webfinger
1785
1786         $dlink = normalise_link($a->get_baseurl() . '/u/' . $u[0]['nickname']);
1787
1788         $cnt = preg_match_all('/[\@\!]\[url\=(.*?)\](.*?)\[\/url\]/ism',$item['body'],$matches,PREG_SET_ORDER);
1789         if($cnt) {
1790                 foreach($matches as $mtch) {
1791                         if(link_compare($link,$mtch[1]) || link_compare($dlink,$mtch[1])) {
1792                                 $mention = true;
1793                                 logger('tgroup_check: mention found: ' . $mtch[2]);
1794                         }
1795                 }
1796         }
1797
1798         if(! $mention)
1799                 return false;
1800
1801         if((! $community_page) && (! $prvgroup))
1802                 return false;
1803
1804
1805
1806         return true;
1807
1808 }
1809
1810
1811
1812
1813
1814
1815 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
1816
1817         $a = get_app();
1818
1819         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
1820
1821         if($contact['duplex'] && $contact['dfrn-id'])
1822                 $idtosend = '0:' . $orig_id;
1823         if($contact['duplex'] && $contact['issued-id'])
1824                 $idtosend = '1:' . $orig_id;
1825
1826         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
1827
1828         $rino_enable = get_config('system','rino_encrypt');
1829
1830         if(! $rino_enable)
1831                 $rino = 0;
1832
1833         $ssl_val = intval(get_config('system','ssl_policy'));
1834         $ssl_policy = '';
1835
1836         switch($ssl_val){
1837                 case SSL_POLICY_FULL:
1838                         $ssl_policy = 'full';
1839                         break;
1840                 case SSL_POLICY_SELFSIGN:
1841                         $ssl_policy = 'self';
1842                         break;
1843                 case SSL_POLICY_NONE:
1844                 default:
1845                         $ssl_policy = 'none';
1846                         break;
1847         }
1848
1849         $url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
1850
1851         logger('dfrn_deliver: ' . $url);
1852
1853         $xml = fetch_url($url);
1854
1855         $curl_stat = $a->get_curl_code();
1856         if(! $curl_stat)
1857                 return(-1); // timed out
1858
1859         logger('dfrn_deliver: ' . $xml, LOGGER_DATA);
1860
1861         if(! $xml)
1862                 return 3;
1863
1864         if(strpos($xml,'<?xml') === false) {
1865                 logger('dfrn_deliver: no valid XML returned');
1866                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
1867                 return 3;
1868         }
1869
1870         $res = parse_xml_string($xml);
1871
1872         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
1873                 return (($res->status) ? $res->status : 3);
1874
1875         $postvars     = array();
1876         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
1877         $challenge    = hex2bin((string) $res->challenge);
1878         $perm         = (($res->perm) ? $res->perm : null);
1879         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
1880         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
1881         $page         = (($owner['page-flags'] == PAGE_COMMUNITY) ? 1 : 0);
1882
1883         if($owner['page-flags'] == PAGE_PRVGROUP)
1884                 $page = 2;
1885
1886         $final_dfrn_id = '';
1887
1888         if($perm) {
1889                 if((($perm == 'rw') && (! intval($contact['writable'])))
1890                 || (($perm == 'r') && (intval($contact['writable'])))) {
1891                         q("update contact set writable = %d where id = %d",
1892                                 intval(($perm == 'rw') ? 1 : 0),
1893                                 intval($contact['id'])
1894                         );
1895                         $contact['writable'] = (string) 1 - intval($contact['writable']);
1896                 }
1897         }
1898
1899         if(($contact['duplex'] && strlen($contact['pubkey']))
1900                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1901                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1902                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
1903                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
1904         }
1905         else {
1906                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
1907                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
1908         }
1909
1910         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
1911
1912         if(strpos($final_dfrn_id,':') == 1)
1913                 $final_dfrn_id = substr($final_dfrn_id,2);
1914
1915         if($final_dfrn_id != $orig_id) {
1916                 logger('dfrn_deliver: wrong dfrn_id.');
1917                 // did not decode properly - cannot trust this site
1918                 return 3;
1919         }
1920
1921         $postvars['dfrn_id']      = $idtosend;
1922         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
1923         if($dissolve)
1924                 $postvars['dissolve'] = '1';
1925
1926
1927         if((($contact['rel']) && ($contact['rel'] != CONTACT_IS_SHARING) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1928                 $postvars['data'] = $atom;
1929                 $postvars['perm'] = 'rw';
1930         }
1931         else {
1932                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
1933                 $postvars['perm'] = 'r';
1934         }
1935
1936         $postvars['ssl_policy'] = $ssl_policy;
1937
1938         if($page)
1939                 $postvars['page'] = $page;
1940
1941         if($rino && $rino_allowed && (! $dissolve)) {
1942                 $key = substr(random_string(),0,16);
1943                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
1944                 $postvars['data'] = $data;
1945                 logger('rino: sent key = ' . $key, LOGGER_DEBUG);
1946
1947
1948                 if($dfrn_version >= 2.1) {
1949                         if(($contact['duplex'] && strlen($contact['pubkey']))
1950                                 || ($owner['page-flags'] == PAGE_COMMUNITY && strlen($contact['pubkey']))
1951                                 || ($contact['rel'] == CONTACT_IS_SHARING && strlen($contact['pubkey']))) {
1952
1953                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1954                         }
1955                         else {
1956                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1957                         }
1958                 }
1959                 else {
1960                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
1961                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
1962                         }
1963                         else {
1964                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
1965                         }
1966                 }
1967
1968                 logger('md5 rawkey ' . md5($postvars['key']));
1969
1970                 $postvars['key'] = bin2hex($postvars['key']);
1971         }
1972
1973         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
1974
1975         $xml = post_url($contact['notify'],$postvars);
1976
1977         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
1978
1979         $curl_stat = $a->get_curl_code();
1980         if((! $curl_stat) || (! strlen($xml)))
1981                 return(-1); // timed out
1982
1983         if(($curl_stat == 503) && (stristr($a->get_curl_headers(),'retry-after')))
1984                 return(-1);
1985
1986         if(strpos($xml,'<?xml') === false) {
1987                 logger('dfrn_deliver: phase 2: no valid XML returned');
1988                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
1989                 return 3;
1990         }
1991
1992         if($contact['term-date'] != '0000-00-00 00:00:00') {
1993                 logger("dfrn_deliver: $url back from the dead - removing mark for death");
1994                 require_once('include/Contact.php');
1995                 unmark_for_death($contact);
1996         }
1997
1998         $res = parse_xml_string($xml);
1999
2000         return $res->status;
2001 }
2002
2003
2004 /*
2005   This function returns true if $update has an edited timestamp newer
2006   than $existing, i.e. $update contains new data which should override
2007   what's already there.  If there is no timestamp yet, the update is
2008   assumed to be newer.  If the update has no timestamp, the existing
2009   item is assumed to be up-to-date.  If the timestamps are equal it
2010   assumes the update has been seen before and should be ignored.
2011   */
2012 function edited_timestamp_is_newer($existing, $update) {
2013     if (!x($existing,'edited') || !$existing['edited']) {
2014         return true;
2015     }
2016     if (!x($update,'edited') || !$update['edited']) {
2017         return false;
2018     }
2019     $existing_edited = datetime_convert('UTC', 'UTC', $existing['edited']);
2020     $update_edited = datetime_convert('UTC', 'UTC', $update['edited']);
2021     return (strcmp($existing_edited, $update_edited) < 0);
2022 }
2023
2024 /**
2025  *
2026  * consume_feed - process atom feed and update anything/everything we might need to update
2027  *
2028  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
2029  *
2030  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
2031  *             It is this person's stuff that is going to be updated.
2032  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
2033  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
2034  *             have a contact record.
2035  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
2036  *        might not) try and subscribe to it.
2037  * $datedir sorts in reverse order
2038  * $pass - by default ($pass = 0) we cannot guarantee that a parent item has been
2039  *      imported prior to its children being seen in the stream unless we are certain
2040  *      of how the feed is arranged/ordered.
2041  * With $pass = 1, we only pull parent items out of the stream.
2042  * With $pass = 2, we only pull children (comments/likes).
2043  *
2044  * So running this twice, first with pass 1 and then with pass 2 will do the right
2045  * thing regardless of feed ordering. This won't be adequate in a fully-threaded
2046  * model where comments can have sub-threads. That would require some massive sorting
2047  * to get all the feed items into a mostly linear ordering, and might still require
2048  * recursion.
2049  */
2050
2051 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $pass = 0) {
2052
2053         require_once('library/simplepie/simplepie.inc');
2054         require_once('include/contact_selectors.php');
2055
2056         if(! strlen($xml)) {
2057                 logger('consume_feed: empty input');
2058                 return;
2059         }
2060
2061         $feed = new SimplePie();
2062         $feed->set_raw_data($xml);
2063         if($datedir)
2064                 $feed->enable_order_by_date(true);
2065         else
2066                 $feed->enable_order_by_date(false);
2067         $feed->init();
2068
2069         if($feed->error())
2070                 logger('consume_feed: Error parsing XML: ' . $feed->error());
2071
2072         $permalink = $feed->get_permalink();
2073
2074         // Check at the feed level for updated contact name and/or photo
2075
2076         $name_updated  = '';
2077         $new_name = '';
2078         $photo_timestamp = '';
2079         $photo_url = '';
2080         $birthday = '';
2081
2082         $hubs = $feed->get_links('hub');
2083         logger('consume_feed: hubs: ' . print_r($hubs,true), LOGGER_DATA);
2084
2085         if(count($hubs))
2086                 $hub = implode(',', $hubs);
2087
2088         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
2089         if(! $rawtags)
2090                 $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
2091         if($rawtags) {
2092                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2093                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2094                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2095                         $new_name = $elems['name'][0]['data'];
2096                 }
2097                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2098                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2099                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2100                 }
2101
2102                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
2103                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
2104                 }
2105         }
2106
2107         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
2108                 logger('consume_feed: Updating photo for '.$contact['name'].' from '.$photo_url.' uid: '.$contact['uid']);
2109                 require_once("include/Photo.php");
2110                 $photo_failure = false;
2111                 $have_photo = false;
2112
2113                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2114                         intval($contact['id']),
2115                         intval($contact['uid'])
2116                 );
2117                 if(count($r)) {
2118                         $resource_id = $r[0]['resource-id'];
2119                         $have_photo = true;
2120                 }
2121                 else {
2122                         $resource_id = photo_new_resource();
2123                 }
2124
2125                 $img_str = fetch_url($photo_url,true);
2126                 // guess mimetype from headers or filename
2127                 $type = guess_image_type($photo_url,true);
2128
2129
2130                 $img = new Photo($img_str, $type);
2131                 if($img->is_valid()) {
2132                         if($have_photo) {
2133                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2134                                         dbesc($resource_id),
2135                                         intval($contact['id']),
2136                                         intval($contact['uid'])
2137                                 );
2138                         }
2139
2140                         $img->scaleImageSquare(175);
2141
2142                         $hash = $resource_id;
2143                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2144
2145                         $img->scaleImage(80);
2146                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2147
2148                         $img->scaleImage(48);
2149                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2150
2151                         $a = get_app();
2152
2153                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2154                                 WHERE `uid` = %d AND `id` = %d",
2155                                 dbesc(datetime_convert()),
2156                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2157                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2158                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2159                                 intval($contact['uid']),
2160                                 intval($contact['id'])
2161                         );
2162                 }
2163         }
2164
2165         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
2166                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2167                         intval($contact['uid']),
2168                         intval($contact['id'])
2169                 );
2170
2171                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d",
2172                         dbesc(notags(trim($new_name))),
2173                         dbesc(datetime_convert()),
2174                         intval($contact['uid']),
2175                         intval($contact['id'])
2176                 );
2177
2178                 // do our best to update the name on content items
2179
2180                 if(count($r)) {
2181                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2182                                 dbesc(notags(trim($new_name))),
2183                                 dbesc($r[0]['name']),
2184                                 dbesc($r[0]['url']),
2185                                 intval($contact['uid'])
2186                         );
2187                 }
2188         }
2189
2190         if(strlen($birthday)) {
2191                 if(substr($birthday,0,4) != $contact['bdyear']) {
2192                         logger('consume_feed: updating birthday: ' . $birthday);
2193
2194                         /**
2195                          *
2196                          * Add new birthday event for this person
2197                          *
2198                          * $bdtext is just a readable placeholder in case the event is shared
2199                          * with others. We will replace it during presentation to our $importer
2200                          * to contain a sparkle link and perhaps a photo.
2201                          *
2202                          */
2203
2204                         $bdtext = sprintf( t('%s\'s birthday'), $contact['name']);
2205                         $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ) ;
2206
2207
2208                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`)
2209                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s' ) ",
2210                                 intval($contact['uid']),
2211                                 intval($contact['id']),
2212                                 dbesc(datetime_convert()),
2213                                 dbesc(datetime_convert()),
2214                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
2215                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
2216                                 dbesc($bdtext),
2217                                 dbesc($bdtext2),
2218                                 dbesc('birthday')
2219                         );
2220
2221
2222                         // update bdyear
2223
2224                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d",
2225                                 dbesc(substr($birthday,0,4)),
2226                                 intval($contact['uid']),
2227                                 intval($contact['id'])
2228                         );
2229
2230                         // This function is called twice without reloading the contact
2231                         // Make sure we only create one event. This is why &$contact
2232                         // is a reference var in this function
2233
2234                         $contact['bdyear'] = substr($birthday,0,4);
2235                 }
2236
2237         }
2238
2239         $community_page = 0;
2240         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
2241         if($rawtags) {
2242                 $community_page = intval($rawtags[0]['data']);
2243         }
2244         if(is_array($contact) && intval($contact['forum']) != $community_page) {
2245                 q("update contact set forum = %d where id = %d",
2246                         intval($community_page),
2247                         intval($contact['id'])
2248                 );
2249                 $contact['forum'] = (string) $community_page;
2250         }
2251
2252
2253         // process any deleted entries
2254
2255         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
2256         if(is_array($del_entries) && count($del_entries) && $pass != 2) {
2257                 foreach($del_entries as $dentry) {
2258                         $deleted = false;
2259                         if(isset($dentry['attribs']['']['ref'])) {
2260                                 $uri = $dentry['attribs']['']['ref'];
2261                                 $deleted = true;
2262                                 if(isset($dentry['attribs']['']['when'])) {
2263                                         $when = $dentry['attribs']['']['when'];
2264                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
2265                                 }
2266                                 else
2267                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
2268                         }
2269                         if($deleted && is_array($contact)) {
2270                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` INNER JOIN `contact` on `item`.`contact-id` = `contact`.`id`
2271                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
2272                                         dbesc($uri),
2273                                         intval($importer['uid']),
2274                                         intval($contact['id'])
2275                                 );
2276                                 if(count($r)) {
2277                                         $item = $r[0];
2278
2279                                         if(! $item['deleted'])
2280                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
2281
2282                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2283                                                 $xo = parse_xml_string($item['object'],false);
2284                                                 $xt = parse_xml_string($item['target'],false);
2285                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
2286                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
2287                                                                 dbesc($xt->id),
2288                                                                 intval($importer['importer_uid'])
2289                                                         );
2290                                                         if(count($i)) {
2291
2292                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
2293
2294                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
2295                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
2296                                                                 $author_copy = (($item['origin']) ? true : false);
2297
2298                                                                 if($owner_remove && $author_copy)
2299                                                                         continue;
2300                                                                 if($author_remove || $owner_remove) {
2301                                                                         $tags = explode(',',$i[0]['tag']);
2302                                                                         $newtags = array();
2303                                                                         if(count($tags)) {
2304                                                                                 foreach($tags as $tag)
2305                                                                                         if(trim($tag) !== trim($xo->body))
2306                                                                                                 $newtags[] = trim($tag);
2307                                                                         }
2308                                                                         q("update item set tag = '%s' where id = %d",
2309                                                                                 dbesc(implode(',',$newtags)),
2310                                                                                 intval($i[0]['id'])
2311                                                                         );
2312                                                                         create_tags_from_item($i[0]['id']);
2313                                                                 }
2314                                                         }
2315                                                 }
2316                                         }
2317
2318                                         if($item['uri'] == $item['parent-uri']) {
2319                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2320                                                         `body` = '', `title` = ''
2321                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
2322                                                         dbesc($when),
2323                                                         dbesc(datetime_convert()),
2324                                                         dbesc($item['uri']),
2325                                                         intval($importer['uid'])
2326                                                 );
2327                                                 create_tags_from_itemuri($item['uri'], $importer['uid']);
2328                                                 create_files_from_itemuri($item['uri'], $importer['uid']);
2329                                                 update_thread_uri($item['uri'], $importer['uid']);
2330                                         }
2331                                         else {
2332                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
2333                                                         `body` = '', `title` = ''
2334                                                         WHERE `uri` = '%s' AND `uid` = %d",
2335                                                         dbesc($when),
2336                                                         dbesc(datetime_convert()),
2337                                                         dbesc($uri),
2338                                                         intval($importer['uid'])
2339                                                 );
2340                                                 create_tags_from_itemuri($uri, $importer['uid']);
2341                                                 create_files_from_itemuri($uri, $importer['uid']);
2342                                                 if($item['last-child']) {
2343                                                         // ensure that last-child is set in case the comment that had it just got wiped.
2344                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
2345                                                                 dbesc(datetime_convert()),
2346                                                                 dbesc($item['parent-uri']),
2347                                                                 intval($item['uid'])
2348                                                         );
2349                                                         // who is the last child now?
2350                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `moderated` = 0 AND `uid` = %d
2351                                                                 ORDER BY `created` DESC LIMIT 1",
2352                                                                         dbesc($item['parent-uri']),
2353                                                                         intval($importer['uid'])
2354                                                         );
2355                                                         if(count($r)) {
2356                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
2357                                                                         intval($r[0]['id'])
2358                                                                 );
2359                                                         }
2360                                                 }
2361                                         }
2362                                 }
2363                         }
2364                 }
2365         }
2366
2367         // Now process the feed
2368
2369         if($feed->get_item_quantity()) {
2370
2371                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
2372
2373         // in inverse date order
2374                 if ($datedir)
2375                         $items = array_reverse($feed->get_items());
2376                 else
2377                         $items = $feed->get_items();
2378
2379
2380                 foreach($items as $item) {
2381
2382                         $is_reply = false;
2383                         $item_id = $item->get_id();
2384                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
2385                         if(isset($rawthread[0]['attribs']['']['ref'])) {
2386                                 $is_reply = true;
2387                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
2388                         }
2389
2390                         if(($is_reply) && is_array($contact)) {
2391
2392                                 if($pass == 1)
2393                                         continue;
2394
2395                                 // not allowed to post
2396
2397                                 if($contact['rel'] == CONTACT_IS_FOLLOWER)
2398                                         continue;
2399
2400
2401                                 // Have we seen it? If not, import it.
2402
2403                                 $item_id  = $item->get_id();
2404                                 $datarray = get_atom_elements($feed, $item, $contact);
2405
2406                                 if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
2407                                         $datarray['author-name'] = $contact['name'];
2408                                 if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
2409                                         $datarray['author-link'] = $contact['url'];
2410                                 if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
2411                                         $datarray['author-avatar'] = $contact['thumb'];
2412
2413                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
2414                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
2415                                         continue;
2416                                 }
2417
2418                                 $force_parent = false;
2419                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
2420                                         if($contact['network'] === NETWORK_OSTATUS)
2421                                                 $force_parent = true;
2422                                         if(strlen($datarray['title']))
2423                                                 unset($datarray['title']);
2424                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
2425                                                 dbesc(datetime_convert()),
2426                                                 dbesc($parent_uri),
2427                                                 intval($importer['uid'])
2428                                         );
2429                                         $datarray['last-child'] = 1;
2430                                         update_thread_uri($parent_uri, $importer['uid']);
2431                                 }
2432
2433
2434                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2435                                         dbesc($item_id),
2436                                         intval($importer['uid'])
2437                                 );
2438
2439                                 // Update content if 'updated' changes
2440
2441                                 if(count($r)) {
2442                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
2443
2444                                                 // do not accept (ignore) an earlier edit than one we currently have.
2445                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2446                                                         continue;
2447
2448                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
2449                                                         dbesc($datarray['title']),
2450                                                         dbesc($datarray['body']),
2451                                                         dbesc($datarray['tag']),
2452                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2453                                                         dbesc(datetime_convert()),
2454                                                         dbesc($item_id),
2455                                                         intval($importer['uid'])
2456                                                 );
2457                                                 create_tags_from_itemuri($item_id, $importer['uid']);
2458                                                 update_thread_uri($item_id, $importer['uid']);
2459                                         }
2460
2461                                         // update last-child if it changes
2462
2463                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2464                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
2465                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
2466                                                         dbesc(datetime_convert()),
2467                                                         dbesc($parent_uri),
2468                                                         intval($importer['uid'])
2469                                                 );
2470                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d",
2471                                                         intval($allow[0]['data']),
2472                                                         dbesc(datetime_convert()),
2473                                                         dbesc($item_id),
2474                                                         intval($importer['uid'])
2475                                                 );
2476                                                 update_thread_uri($item_id, $importer['uid']);
2477                                         }
2478                                         continue;
2479                                 }
2480
2481
2482                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
2483                                         // one way feed - no remote comment ability
2484                                         $datarray['last-child'] = 0;
2485                                 }
2486                                 $datarray['parent-uri'] = $parent_uri;
2487                                 $datarray['uid'] = $importer['uid'];
2488                                 $datarray['contact-id'] = $contact['id'];
2489                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
2490                                         $datarray['type'] = 'activity';
2491                                         $datarray['gravity'] = GRAVITY_LIKE;
2492                                         // only one like or dislike per person
2493                                         // splitted into two queries for performance issues
2494                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s') limit 1",
2495                                                 intval($datarray['uid']),
2496                                                 intval($datarray['contact-id']),
2497                                                 dbesc($datarray['verb']),
2498                                                 dbesc($parent_uri)
2499                                         );
2500                                         if($r && count($r))
2501                                                 continue;
2502
2503                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`thr-parent` = '%s') limit 1",
2504                                                 intval($datarray['uid']),
2505                                                 intval($datarray['contact-id']),
2506                                                 dbesc($datarray['verb']),
2507                                                 dbesc($parent_uri)
2508                                         );
2509                                         if($r && count($r))
2510                                                 continue;
2511                                 }
2512
2513                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
2514                                         $xo = parse_xml_string($datarray['object'],false);
2515                                         $xt = parse_xml_string($datarray['target'],false);
2516
2517                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
2518                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
2519                                                         dbesc($xt->id),
2520                                                         intval($importer['importer_uid'])
2521                                                 );
2522                                                 if(! count($r))
2523                                                         continue;
2524
2525                                                 // extract tag, if not duplicate, add to parent item
2526                                                 if($xo->id && $xo->content) {
2527                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
2528                                                         if(! (stristr($r[0]['tag'],$newtag))) {
2529                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d",
2530                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . $newtag),
2531                                                                         intval($r[0]['id'])
2532                                                                 );
2533                                                                 create_tags_from_item($r[0]['id']);
2534                                                         }
2535                                                 }
2536                                         }
2537                                 }
2538
2539                                 $r = item_store($datarray,$force_parent);
2540                                 continue;
2541                         }
2542
2543                         else {
2544
2545                                 // Head post of a conversation. Have we seen it? If not, import it.
2546
2547                                 $item_id  = $item->get_id();
2548
2549                                 $datarray = get_atom_elements($feed, $item, $contact);
2550
2551                                 if(is_array($contact)) {
2552                                         if((! x($datarray,'author-name')) && ($contact['network'] != NETWORK_DFRN))
2553                                                 $datarray['author-name'] = $contact['name'];
2554                                         if((! x($datarray,'author-link')) && ($contact['network'] != NETWORK_DFRN))
2555                                                 $datarray['author-link'] = $contact['url'];
2556                                         if((! x($datarray,'author-avatar')) && ($contact['network'] != NETWORK_DFRN))
2557                                                 $datarray['author-avatar'] = $contact['thumb'];
2558                                 }
2559
2560                                 if((! x($datarray,'author-name')) || (! x($datarray,'author-link'))) {
2561                                         logger('consume_feed: no author information! ' . print_r($datarray,true));
2562                                         continue;
2563                                 }
2564
2565                                 // special handling for events
2566
2567                                 if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
2568                                         $ev = bbtoevent($datarray['body']);
2569                                         if(x($ev,'desc') && x($ev,'start')) {
2570                                                 $ev['uid'] = $importer['uid'];
2571                                                 $ev['uri'] = $item_id;
2572                                                 $ev['edited'] = $datarray['edited'];
2573                                                 $ev['private'] = $datarray['private'];
2574
2575                                                 if(is_array($contact))
2576                                                         $ev['cid'] = $contact['id'];
2577                                                 $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2578                                                         dbesc($item_id),
2579                                                         intval($importer['uid'])
2580                                                 );
2581                                                 if(count($r))
2582                                                         $ev['id'] = $r[0]['id'];
2583                                                 $xyz = event_store($ev);
2584                                                 continue;
2585                                         }
2586                                 }
2587
2588                                 if($contact['network'] === NETWORK_OSTATUS || stristr($contact['url'],'twitter.com')) {
2589                                         if(strlen($datarray['title']))
2590                                                 unset($datarray['title']);
2591                                         $datarray['last-child'] = 1;
2592                                 }
2593
2594
2595                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
2596                                         dbesc($item_id),
2597                                         intval($importer['uid'])
2598                                 );
2599
2600                                 // Update content if 'updated' changes
2601
2602                                 if(count($r)) {
2603                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
2604
2605                                                 // do not accept (ignore) an earlier edit than one we currently have.
2606                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
2607                                                         continue;
2608
2609                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
2610                                                         dbesc($datarray['title']),
2611                                                         dbesc($datarray['body']),
2612                                                         dbesc($datarray['tag']),
2613                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
2614                                                         dbesc(datetime_convert()),
2615                                                         dbesc($item_id),
2616                                                         intval($importer['uid'])
2617                                                 );
2618                                                 create_tags_from_itemuri($item_id, $importer['uid']);
2619                                                 update_thread_uri($item_id, $importer['uid']);
2620                                         }
2621
2622                                         // update last-child if it changes
2623
2624                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
2625                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
2626                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
2627                                                         intval($allow[0]['data']),
2628                                                         dbesc(datetime_convert()),
2629                                                         dbesc($item_id),
2630                                                         intval($importer['uid'])
2631                                                 );
2632                                                 update_thread_uri($item_id, $importer['uid']);
2633                                         }
2634                                         continue;
2635                                 }
2636
2637                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
2638                                         logger('consume-feed: New follower');
2639                                         new_follower($importer,$contact,$datarray,$item);
2640                                         return;
2641                                 }
2642                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
2643                                         lose_follower($importer,$contact,$datarray,$item);
2644                                         return;
2645                                 }
2646
2647                                 if(activity_match($datarray['verb'],ACTIVITY_REQ_FRIEND)) {
2648                                         logger('consume-feed: New friend request');
2649                                         new_follower($importer,$contact,$datarray,$item,true);
2650                                         return;
2651                                 }
2652                                 if(activity_match($datarray['verb'],ACTIVITY_UNFRIEND))  {
2653                                         lose_sharer($importer,$contact,$datarray,$item);
2654                                         return;
2655                                 }
2656
2657
2658                                 if(! is_array($contact))
2659                                         return;
2660
2661
2662                                 if(($contact['network'] === NETWORK_FEED) || (! strlen($contact['notify']))) {
2663                                                 // one way feed - no remote comment ability
2664                                                 $datarray['last-child'] = 0;
2665                                 }
2666                                 if($contact['network'] === NETWORK_FEED)
2667                                         $datarray['private'] = 2;
2668
2669                                 $datarray['parent-uri'] = $item_id;
2670                                 $datarray['uid'] = $importer['uid'];
2671                                 $datarray['contact-id'] = $contact['id'];
2672
2673                                 if(! link_compare($datarray['owner-link'],$contact['url'])) {
2674                                         // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
2675                                         // but otherwise there's a possible data mixup on the sender's system.
2676                                         // the tgroup delivery code called from item_store will correct it if it's a forum,
2677                                         // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
2678                                         logger('consume_feed: Correcting item owner.', LOGGER_DEBUG);
2679                                         $datarray['owner-name']   = $contact['name'];
2680                                         $datarray['owner-link']   = $contact['url'];
2681                                         $datarray['owner-avatar'] = $contact['thumb'];
2682                                 }
2683
2684                                 // We've allowed "followers" to reach this point so we can decide if they are
2685                                 // posting an @-tag delivery, which followers are allowed to do for certain
2686                                 // page types. Now that we've parsed the post, let's check if it is legit. Otherwise ignore it.
2687
2688                                 if(($contact['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['uid'],$datarray)))
2689                                         continue;
2690
2691                                 // This is my contact on another system, but it's really me.
2692                                 // Turn this into a wall post.
2693                                 $notify = item_is_remote_self($contact, $datarray);
2694
2695                                 $r = item_store($datarray, false, $notify);
2696                                 logger('Stored - Contact '.$contact['url'].' Notify '.$notify.' return '.$r.' Item '.print_r($datarray, true), LOGGER_DEBUG);
2697                                 continue;
2698
2699                         }
2700                 }
2701         }
2702 }
2703
2704 function item_is_remote_self($contact, &$datarray) {
2705         $a = get_app();
2706
2707         if (!$contact['remote_self'])
2708                 return false;
2709
2710         // Prevent the forwarding of posts that are forwarded
2711         if ($datarray["extid"] == NETWORK_DFRN)
2712                 return false;
2713
2714         // Prevent to forward already forwarded posts
2715         if ($datarray["app"] == $a->get_hostname())
2716                 return false;
2717
2718         if (($contact['network'] != NETWORK_FEED) AND $datarray['private'])
2719                 return false;
2720
2721         $datarray2 = $datarray;
2722         logger('remote-self start - Contact '.$contact['url'].' - '.$contact['remote_self'].' Item '.print_r($datarray, true), LOGGER_DEBUG);
2723         if ($contact['remote_self'] == 2) {
2724                 $r = q("SELECT `id`,`url`,`name`,`thumb` FROM `contact` WHERE `uid` = %d AND `self`",
2725                         intval($contact['uid']));
2726                 if (count($r)) {
2727                         $datarray['contact-id'] = $r[0]["id"];
2728
2729                         $datarray['owner-name'] = $r[0]["name"];
2730                         $datarray['owner-link'] = $r[0]["url"];
2731                         $datarray['owner-avatar'] = $r[0]["thumb"];
2732
2733                         $datarray['author-name']   = $datarray['owner-name'];
2734                         $datarray['author-link']   = $datarray['owner-link'];
2735                         $datarray['author-avatar'] = $datarray['owner-avatar'];
2736                 }
2737
2738                 if ($contact['network'] != NETWORK_FEED) {
2739                         $datarray["guid"] = get_guid(32);
2740                         unset($datarray["plink"]);
2741                         $datarray["uri"] = item_new_uri($a->get_hostname(),$contact['uid']);
2742                         $datarray["parent-uri"] = $datarray["uri"];
2743                         $datarray["extid"] = $contact['network'];
2744                         $urlpart = parse_url($datarray2['author-link']);
2745                         $datarray["app"] = $urlpart["host"];
2746                 } else
2747                         $datarray['private'] = 0;
2748         }
2749
2750         //if (!isset($datarray["app"]) OR ($datarray["app"] == ""))
2751         //      $datarray["app"] = network_to_name($contact['network']);
2752
2753         if ($contact['network'] != NETWORK_FEED) {
2754                 // Store the original post
2755                 $r = item_store($datarray2, false, false);
2756                 logger('remote-self post original item - Contact '.$contact['url'].' return '.$r.' Item '.print_r($datarray2, true), LOGGER_DEBUG);
2757         } else
2758                 $datarray["app"] = "Feed";
2759
2760         return true;
2761 }
2762
2763 function local_delivery($importer,$data) {
2764         $a = get_app();
2765
2766         logger(__function__, LOGGER_TRACE);
2767
2768         if($importer['readonly']) {
2769                 // We aren't receiving stuff from this person. But we will quietly ignore them
2770                 // rather than a blatant "go away" message.
2771                 logger('local_delivery: ignoring');
2772                 return 0;
2773                 //NOTREACHED
2774         }
2775
2776         // Consume notification feed. This may differ from consuming a public feed in several ways
2777         // - might contain email or friend suggestions
2778         // - might contain remote followup to our message
2779         //              - in which case we need to accept it and then notify other conversants
2780         // - we may need to send various email notifications
2781
2782         $feed = new SimplePie();
2783         $feed->set_raw_data($data);
2784         $feed->enable_order_by_date(false);
2785         $feed->init();
2786
2787
2788         if($feed->error())
2789                 logger('local_delivery: Error parsing XML: ' . $feed->error());
2790
2791
2792         // Check at the feed level for updated contact name and/or photo
2793
2794         $name_updated  = '';
2795         $new_name = '';
2796         $photo_timestamp = '';
2797         $photo_url = '';
2798
2799
2800         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'owner');
2801
2802 // Fallback should not be needed here. If it isn't DFRN it won't have DFRN updated tags
2803 //      if(! $rawtags)
2804 //              $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
2805
2806         if($rawtags) {
2807                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
2808                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
2809                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
2810                         $new_name = $elems['name'][0]['data'];
2811                 }
2812                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
2813                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
2814                         $photo_url = $elems['link'][0]['attribs']['']['href'];
2815                 }
2816         }
2817
2818         if(($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $importer['avatar-date'])) {
2819                 logger('local_delivery: Updating photo for ' . $importer['name']);
2820                 require_once("include/Photo.php");
2821                 $photo_failure = false;
2822                 $have_photo = false;
2823
2824                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
2825                         intval($importer['id']),
2826                         intval($importer['importer_uid'])
2827                 );
2828                 if(count($r)) {
2829                         $resource_id = $r[0]['resource-id'];
2830                         $have_photo = true;
2831                 }
2832                 else {
2833                         $resource_id = photo_new_resource();
2834                 }
2835
2836                 $img_str = fetch_url($photo_url,true);
2837                 // guess mimetype from headers or filename
2838                 $type = guess_image_type($photo_url,true);
2839
2840
2841                 $img = new Photo($img_str, $type);
2842                 if($img->is_valid()) {
2843                         if($have_photo) {
2844                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
2845                                         dbesc($resource_id),
2846                                         intval($importer['id']),
2847                                         intval($importer['importer_uid'])
2848                                 );
2849                         }
2850
2851                         $img->scaleImageSquare(175);
2852
2853                         $hash = $resource_id;
2854                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 4);
2855
2856                         $img->scaleImage(80);
2857                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 5);
2858
2859                         $img->scaleImage(48);
2860                         $r = $img->store($importer['importer_uid'], $importer['id'], $hash, basename($photo_url), 'Contact Photos', 6);
2861
2862                         $a = get_app();
2863
2864                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
2865                                 WHERE `uid` = %d AND `id` = %d",
2866                                 dbesc(datetime_convert()),
2867                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.'.$img->getExt()),
2868                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.'.$img->getExt()),
2869                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.'.$img->getExt()),
2870                                 intval($importer['importer_uid']),
2871                                 intval($importer['id'])
2872                         );
2873                 }
2874         }
2875
2876         if(($name_updated) && (strlen($new_name)) && ($name_updated > $importer['name-date'])) {
2877                 $r = q("select * from contact where uid = %d and id = %d limit 1",
2878                         intval($importer['importer_uid']),
2879                         intval($importer['id'])
2880                 );
2881
2882                 $x = q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d",
2883                         dbesc(notags(trim($new_name))),
2884                         dbesc(datetime_convert()),
2885                         intval($importer['importer_uid']),
2886                         intval($importer['id'])
2887                 );
2888
2889                 // do our best to update the name on content items
2890
2891                 if(count($r)) {
2892                         q("update item set `author-name` = '%s' where `author-name` = '%s' and `author-link` = '%s' and uid = %d",
2893                                 dbesc(notags(trim($new_name))),
2894                                 dbesc($r[0]['name']),
2895                                 dbesc($r[0]['url']),
2896                                 intval($importer['importer_uid'])
2897                         );
2898                 }
2899         }
2900
2901
2902
2903         // Currently unsupported - needs a lot of work
2904         $reloc = $feed->get_feed_tags( NAMESPACE_DFRN, 'relocate' );
2905         if(isset($reloc[0]['child'][NAMESPACE_DFRN])) {
2906                 $base = $reloc[0]['child'][NAMESPACE_DFRN];
2907                 $newloc = array();
2908                 $newloc['uid'] = $importer['importer_uid'];
2909                 $newloc['cid'] = $importer['id'];
2910                 $newloc['name'] = notags(unxmlify($base['name'][0]['data']));
2911                 $newloc['photo'] = notags(unxmlify($base['photo'][0]['data']));
2912                 $newloc['thumb'] = notags(unxmlify($base['thumb'][0]['data']));
2913                 $newloc['micro'] = notags(unxmlify($base['micro'][0]['data']));
2914                 $newloc['url'] = notags(unxmlify($base['url'][0]['data']));
2915                 $newloc['request'] = notags(unxmlify($base['request'][0]['data']));
2916                 $newloc['confirm'] = notags(unxmlify($base['confirm'][0]['data']));
2917                 $newloc['notify'] = notags(unxmlify($base['notify'][0]['data']));
2918                 $newloc['poll'] = notags(unxmlify($base['poll'][0]['data']));
2919                 $newloc['sitepubkey'] = notags(unxmlify($base['sitepubkey'][0]['data']));
2920                 /** relocated user must have original key pair */
2921                 /*$newloc['pubkey'] = notags(unxmlify($base['pubkey'][0]['data']));
2922                 $newloc['prvkey'] = notags(unxmlify($base['prvkey'][0]['data']));*/
2923
2924                 logger("items:relocate contact ".print_r($newloc, true).print_r($importer, true), LOGGER_DEBUG);
2925
2926                 // update contact
2927                 $r = q("SELECT photo, url FROM contact WHERE id=%d AND uid=%d;",
2928                         intval($importer['id']),
2929                         intval($importer['importer_uid']));
2930                 if ($r === false)
2931                         return 1;
2932                 $old = $r[0];
2933
2934                 $x = q("UPDATE contact SET
2935                                         name = '%s',
2936                                         photo = '%s',
2937                                         thumb = '%s',
2938                                         micro = '%s',
2939                                         url = '%s',
2940                                         request = '%s',
2941                                         confirm = '%s',
2942                                         notify = '%s',
2943                                         poll = '%s',
2944                                         `site-pubkey` = '%s'
2945                         WHERE id=%d AND uid=%d;",
2946                                         dbesc($newloc['name']),
2947                                         dbesc($newloc['photo']),
2948                                         dbesc($newloc['thumb']),
2949                                         dbesc($newloc['micro']),
2950                                         dbesc($newloc['url']),
2951                                         dbesc($newloc['request']),
2952                                         dbesc($newloc['confirm']),
2953                                         dbesc($newloc['notify']),
2954                                         dbesc($newloc['poll']),
2955                                         dbesc($newloc['sitepubkey']),
2956                                         intval($importer['id']),
2957                                         intval($importer['importer_uid']));
2958
2959                 if ($x === false)
2960                         return 1;
2961                 // update items
2962                 $fields = array(
2963                         'owner-link' => array($old['url'], $newloc['url']),
2964                         'author-link' => array($old['url'], $newloc['url']),
2965                         'owner-avatar' => array($old['photo'], $newloc['photo']),
2966                         'author-avatar' => array($old['photo'], $newloc['photo']),
2967                         );
2968                 foreach ($fields as $n=>$f){
2969                         $x = q("UPDATE `item` SET `%s`='%s' WHERE `%s`='%s' AND uid=%d",
2970                                         $n, dbesc($f[1]),
2971                                         $n, dbesc($f[0]),
2972                                         intval($importer['importer_uid']));
2973                                 if ($x === false)
2974                                         return 1;
2975                         }
2976
2977                 // TODO
2978                 // merge with current record, current contents have priority
2979                 // update record, set url-updated
2980                 // update profile photos
2981                 // schedule a scan?
2982                 return 0;
2983         }
2984
2985
2986         // handle friend suggestion notification
2987
2988         $sugg = $feed->get_feed_tags( NAMESPACE_DFRN, 'suggest' );
2989         if(isset($sugg[0]['child'][NAMESPACE_DFRN])) {
2990                 $base = $sugg[0]['child'][NAMESPACE_DFRN];
2991                 $fsugg = array();
2992                 $fsugg['uid'] = $importer['importer_uid'];
2993                 $fsugg['cid'] = $importer['id'];
2994                 $fsugg['name'] = notags(unxmlify($base['name'][0]['data']));
2995                 $fsugg['photo'] = notags(unxmlify($base['photo'][0]['data']));
2996                 $fsugg['url'] = notags(unxmlify($base['url'][0]['data']));
2997                 $fsugg['request'] = notags(unxmlify($base['request'][0]['data']));
2998                 $fsugg['body'] = escape_tags(unxmlify($base['note'][0]['data']));
2999
3000                 // Does our member already have a friend matching this description?
3001
3002                 $r = q("SELECT * FROM `contact` WHERE `name` = '%s' AND `nurl` = '%s' AND `uid` = %d LIMIT 1",
3003                         dbesc($fsugg['name']),
3004                         dbesc(normalise_link($fsugg['url'])),
3005                         intval($fsugg['uid'])
3006                 );
3007                 if(count($r))
3008                         return 0;
3009
3010                 // Do we already have an fcontact record for this person?
3011
3012                 $fid = 0;
3013                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
3014                         dbesc($fsugg['url']),
3015                         dbesc($fsugg['name']),
3016                         dbesc($fsugg['request'])
3017                 );
3018                 if(count($r)) {
3019                         $fid = $r[0]['id'];
3020
3021                         // OK, we do. Do we already have an introduction for this person ?
3022                         $r = q("select id from intro where uid = %d and fid = %d limit 1",
3023                                 intval($fsugg['uid']),
3024                                 intval($fid)
3025                         );
3026                         if(count($r))
3027                                 return 0;
3028                 }
3029                 if(! $fid)
3030                         $r = q("INSERT INTO `fcontact` ( `name`,`url`,`photo`,`request` ) VALUES ( '%s', '%s', '%s', '%s' ) ",
3031                         dbesc($fsugg['name']),
3032                         dbesc($fsugg['url']),
3033                         dbesc($fsugg['photo']),
3034                         dbesc($fsugg['request'])
3035                 );
3036                 $r = q("SELECT * FROM `fcontact` WHERE `url` = '%s' AND `name` = '%s' AND `request` = '%s' LIMIT 1",
3037                         dbesc($fsugg['url']),
3038                         dbesc($fsugg['name']),
3039                         dbesc($fsugg['request'])
3040                 );
3041                 if(count($r)) {
3042                         $fid = $r[0]['id'];
3043                 }
3044                 // database record did not get created. Quietly give up.
3045                 else
3046                         return 0;
3047
3048
3049                 $hash = random_string();
3050
3051                 $r = q("INSERT INTO `intro` ( `uid`, `fid`, `contact-id`, `note`, `hash`, `datetime`, `blocked` )
3052                         VALUES( %d, %d, %d, '%s', '%s', '%s', %d )",
3053                         intval($fsugg['uid']),
3054                         intval($fid),
3055                         intval($fsugg['cid']),
3056                         dbesc($fsugg['body']),
3057                         dbesc($hash),
3058                         dbesc(datetime_convert()),
3059                         intval(0)
3060                 );
3061
3062                 notification(array(
3063                         'type'         => NOTIFY_SUGGEST,
3064                         'notify_flags' => $importer['notify-flags'],
3065                         'language'     => $importer['language'],
3066                         'to_name'      => $importer['username'],
3067                         'to_email'     => $importer['email'],
3068                         'uid'          => $importer['importer_uid'],
3069                         'item'         => $fsugg,
3070                         'link'         => $a->get_baseurl() . '/notifications/intros',
3071                         'source_name'  => $importer['name'],
3072                         'source_link'  => $importer['url'],
3073                         'source_photo' => $importer['photo'],
3074                         'verb'         => ACTIVITY_REQ_FRIEND,
3075                         'otype'        => 'intro'
3076                 ));
3077
3078                 return 0;
3079         }
3080
3081         $ismail = false;
3082
3083         $rawmail = $feed->get_feed_tags( NAMESPACE_DFRN, 'mail' );
3084         if(isset($rawmail[0]['child'][NAMESPACE_DFRN])) {
3085
3086                 logger('local_delivery: private message received');
3087
3088                 $ismail = true;
3089                 $base = $rawmail[0]['child'][NAMESPACE_DFRN];
3090
3091                 $msg = array();
3092                 $msg['uid'] = $importer['importer_uid'];
3093                 $msg['from-name'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['name'][0]['data']));
3094                 $msg['from-photo'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['avatar'][0]['data']));
3095                 $msg['from-url'] = notags(unxmlify($base['sender'][0]['child'][NAMESPACE_DFRN]['uri'][0]['data']));
3096                 $msg['contact-id'] = $importer['id'];
3097                 $msg['title'] = notags(unxmlify($base['subject'][0]['data']));
3098                 $msg['body'] = escape_tags(unxmlify($base['content'][0]['data']));
3099                 $msg['seen'] = 0;
3100                 $msg['replied'] = 0;
3101                 $msg['uri'] = notags(unxmlify($base['id'][0]['data']));
3102                 $msg['parent-uri'] = notags(unxmlify($base['in-reply-to'][0]['data']));
3103                 $msg['created'] = datetime_convert(notags(unxmlify('UTC','UTC',$base['sentdate'][0]['data'])));
3104
3105                 dbesc_array($msg);
3106
3107                 $r = dbq("INSERT INTO `mail` (`" . implode("`, `", array_keys($msg))
3108                         . "`) VALUES ('" . implode("', '", array_values($msg)) . "')" );
3109
3110                 // send notifications.
3111
3112                 require_once('include/enotify.php');
3113
3114                 $notif_params = array(
3115                         'type' => NOTIFY_MAIL,
3116                         'notify_flags' => $importer['notify-flags'],
3117                         'language' => $importer['language'],
3118                         'to_name' => $importer['username'],
3119                         'to_email' => $importer['email'],
3120                         'uid' => $importer['importer_uid'],
3121                         'item' => $msg,
3122                         'source_name' => $msg['from-name'],
3123                         'source_link' => $importer['url'],
3124                         'source_photo' => $importer['thumb'],
3125                         'verb' => ACTIVITY_POST,
3126                         'otype' => 'mail'
3127                 );
3128
3129                 notification($notif_params);
3130                 return 0;
3131
3132                 // NOTREACHED
3133         }
3134
3135         $community_page = 0;
3136         $rawtags = $feed->get_feed_tags( NAMESPACE_DFRN, 'community');
3137         if($rawtags) {
3138                 $community_page = intval($rawtags[0]['data']);
3139         }
3140         if(intval($importer['forum']) != $community_page) {
3141                 q("update contact set forum = %d where id = %d",
3142                         intval($community_page),
3143                         intval($importer['id'])
3144                 );
3145                 $importer['forum'] = (string) $community_page;
3146         }
3147
3148         logger('local_delivery: feed item count = ' . $feed->get_item_quantity());
3149
3150         // process any deleted entries
3151
3152         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
3153         if(is_array($del_entries) && count($del_entries)) {
3154                 foreach($del_entries as $dentry) {
3155                         $deleted = false;
3156                         if(isset($dentry['attribs']['']['ref'])) {
3157                                 $uri = $dentry['attribs']['']['ref'];
3158                                 $deleted = true;
3159                                 if(isset($dentry['attribs']['']['when'])) {
3160                                         $when = $dentry['attribs']['']['when'];
3161                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
3162                                 }
3163                                 else
3164                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
3165                         }
3166                         if($deleted) {
3167
3168                                 // check for relayed deletes to our conversation
3169
3170                                 $is_reply = false;
3171                                 $r = q("select * from item where uri = '%s' and uid = %d limit 1",
3172                                         dbesc($uri),
3173                                         intval($importer['importer_uid'])
3174                                 );
3175                                 if(count($r)) {
3176                                         $parent_uri = $r[0]['parent-uri'];
3177                                         if($r[0]['id'] != $r[0]['parent'])
3178                                                 $is_reply = true;
3179                                 }
3180
3181                                 if($is_reply) {
3182                                         $community = false;
3183
3184                                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
3185                                                 $sql_extra = '';
3186                                                 $community = true;
3187                                                 logger('local_delivery: possible community delete');
3188                                         }
3189                                         else
3190                                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
3191
3192                                         // was the top-level post for this reply written by somebody on this site?
3193                                         // Specifically, the recipient?
3194
3195                                         $is_a_remote_delete = false;
3196
3197                                         // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
3198                                         $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
3199                                                 `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
3200                                                 INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
3201                                                 WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
3202                                                 AND `item`.`uid` = %d
3203                                                 $sql_extra
3204                                                 LIMIT 1",
3205                                                 dbesc($parent_uri),
3206                                                 dbesc($parent_uri),
3207                                                 dbesc($parent_uri),
3208                                                 intval($importer['importer_uid'])
3209                                         );
3210                                         if($r && count($r))
3211                                                 $is_a_remote_delete = true;
3212
3213                                         // Does this have the characteristics of a community or private group comment?
3214                                         // If it's a reply to a wall post on a community/prvgroup page it's a
3215                                         // valid community comment. Also forum_mode makes it valid for sure.
3216                                         // If neither, it's not.
3217
3218                                         if($is_a_remote_delete && $community) {
3219                                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
3220                                                         $is_a_remote_delete = false;
3221                                                         logger('local_delivery: not a community delete');
3222                                                 }
3223                                         }
3224
3225                                         if($is_a_remote_delete) {
3226                                                 logger('local_delivery: received remote delete');
3227                                         }
3228                                 }
3229
3230                                 $r = q("SELECT `item`.*, `contact`.`self` FROM `item` INNER JOIN contact on `item`.`contact-id` = `contact`.`id`
3231                                         WHERE `uri` = '%s' AND `item`.`uid` = %d AND `contact-id` = %d AND NOT `item`.`file` LIKE '%%[%%' LIMIT 1",
3232                                         dbesc($uri),
3233                                         intval($importer['importer_uid']),
3234                                         intval($importer['id'])
3235                                 );
3236
3237                                 if(count($r)) {
3238                                         $item = $r[0];
3239
3240                                         if($item['deleted'])
3241                                                 continue;
3242
3243                                         logger('local_delivery: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
3244
3245                                         if(($item['verb'] === ACTIVITY_TAG) && ($item['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3246                                                 $xo = parse_xml_string($item['object'],false);
3247                                                 $xt = parse_xml_string($item['target'],false);
3248
3249                                                 if($xt->type === ACTIVITY_OBJ_NOTE) {
3250                                                         $i = q("select * from `item` where uri = '%s' and uid = %d limit 1",
3251                                                                 dbesc($xt->id),
3252                                                                 intval($importer['importer_uid'])
3253                                                         );
3254                                                         if(count($i)) {
3255
3256                                                                 // For tags, the owner cannot remove the tag on the author's copy of the post.
3257
3258                                                                 $owner_remove = (($item['contact-id'] == $i[0]['contact-id']) ? true: false);
3259                                                                 $author_remove = (($item['origin'] && $item['self']) ? true : false);
3260                                                                 $author_copy = (($item['origin']) ? true : false);
3261
3262                                                                 if($owner_remove && $author_copy)
3263                                                                         continue;
3264                                                                 if($author_remove || $owner_remove) {
3265                                                                         $tags = explode(',',$i[0]['tag']);
3266                                                                         $newtags = array();
3267                                                                         if(count($tags)) {
3268                                                                                 foreach($tags as $tag)
3269                                                                                         if(trim($tag) !== trim($xo->body))
3270                                                                                                 $newtags[] = trim($tag);
3271                                                                         }
3272                                                                         q("update item set tag = '%s' where id = %d",
3273                                                                                 dbesc(implode(',',$newtags)),
3274                                                                                 intval($i[0]['id'])
3275                                                                         );
3276                                                                         create_tags_from_item($i[0]['id']);
3277                                                                 }
3278                                                         }
3279                                                 }
3280                                         }
3281
3282                                         if($item['uri'] == $item['parent-uri']) {
3283                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
3284                                                         `body` = '', `title` = ''
3285                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
3286                                                         dbesc($when),
3287                                                         dbesc(datetime_convert()),
3288                                                         dbesc($item['uri']),
3289                                                         intval($importer['importer_uid'])
3290                                                 );
3291                                                 create_tags_from_itemuri($item['uri'], $importer['importer_uid']);
3292                                                 create_files_from_itemuri($item['uri'], $importer['importer_uid']);
3293                                                 update_thread_uri($item['uri'], $importer['importer_uid']);
3294                                         }
3295                                         else {
3296                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
3297                                                         `body` = '', `title` = ''
3298                                                         WHERE `uri` = '%s' AND `uid` = %d",
3299                                                         dbesc($when),
3300                                                         dbesc(datetime_convert()),
3301                                                         dbesc($uri),
3302                                                         intval($importer['importer_uid'])
3303                                                 );
3304                                                 create_tags_from_itemuri($uri, $importer['importer_uid']);
3305                                                 create_files_from_itemuri($uri, $importer['importer_uid']);
3306                                                 update_thread_uri($uri, $importer['importer_uid']);
3307                                                 if($item['last-child']) {
3308                                                         // ensure that last-child is set in case the comment that had it just got wiped.
3309                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
3310                                                                 dbesc(datetime_convert()),
3311                                                                 dbesc($item['parent-uri']),
3312                                                                 intval($item['uid'])
3313                                                         );
3314                                                         // who is the last child now?
3315                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
3316                                                                 ORDER BY `created` DESC LIMIT 1",
3317                                                                         dbesc($item['parent-uri']),
3318                                                                         intval($importer['importer_uid'])
3319                                                         );
3320                                                         if(count($r)) {
3321                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
3322                                                                         intval($r[0]['id'])
3323                                                                 );
3324                                                         }
3325                                                 }
3326                                                 // if this is a relayed delete, propagate it to other recipients
3327
3328                                                 if($is_a_remote_delete)
3329                                                         proc_run('php',"include/notifier.php","drop",$item['id']);
3330                                         }
3331                                 }
3332                         }
3333                 }
3334         }
3335
3336
3337         foreach($feed->get_items() as $item) {
3338
3339                 $is_reply = false;
3340                 $item_id = $item->get_id();
3341                 $rawthread = $item->get_item_tags( NAMESPACE_THREAD, 'in-reply-to');
3342                 if(isset($rawthread[0]['attribs']['']['ref'])) {
3343                         $is_reply = true;
3344                         $parent_uri = $rawthread[0]['attribs']['']['ref'];
3345                 }
3346
3347                 if($is_reply) {
3348                         $community = false;
3349
3350                         if($importer['page-flags'] == PAGE_COMMUNITY || $importer['page-flags'] == PAGE_PRVGROUP ) {
3351                                 $sql_extra = '';
3352                                 $community = true;
3353                                 logger('local_delivery: possible community reply');
3354                         }
3355                         else
3356                                 $sql_extra = " and contact.self = 1 and item.wall = 1 ";
3357
3358                         // was the top-level post for this reply written by somebody on this site?
3359                         // Specifically, the recipient?
3360
3361                         $is_a_remote_comment = false;
3362                         $top_uri = $parent_uri;
3363
3364                         $r = q("select `item`.`parent-uri` from `item`
3365                                 WHERE `item`.`uri` = '%s'
3366                                 LIMIT 1",
3367                                 dbesc($parent_uri)
3368                         );
3369                         if($r && count($r)) {
3370                                 $top_uri = $r[0]['parent-uri'];
3371
3372                                 // POSSIBLE CLEANUP --> Why select so many fields when only forum_mode and wall are used?
3373                                 $r = q("select `item`.`id`, `item`.`uri`, `item`.`tag`, `item`.`forum_mode`,`item`.`origin`,`item`.`wall`,
3374                                         `contact`.`name`, `contact`.`url`, `contact`.`thumb` from `item`
3375                                         INNER JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
3376                                         WHERE `item`.`uri` = '%s' AND (`item`.`parent-uri` = '%s' or `item`.`thr-parent` = '%s')
3377                                         AND `item`.`uid` = %d
3378                                         $sql_extra
3379                                         LIMIT 1",
3380                                         dbesc($top_uri),
3381                                         dbesc($top_uri),
3382                                         dbesc($top_uri),
3383                                         intval($importer['importer_uid'])
3384                                 );
3385                                 if($r && count($r))
3386                                         $is_a_remote_comment = true;
3387                         }
3388
3389                         // Does this have the characteristics of a community or private group comment?
3390                         // If it's a reply to a wall post on a community/prvgroup page it's a
3391                         // valid community comment. Also forum_mode makes it valid for sure.
3392                         // If neither, it's not.
3393
3394                         if($is_a_remote_comment && $community) {
3395                                 if((! $r[0]['forum_mode']) && (! $r[0]['wall'])) {
3396                                         $is_a_remote_comment = false;
3397                                         logger('local_delivery: not a community reply');
3398                                 }
3399                         }
3400
3401                         if($is_a_remote_comment) {
3402                                 logger('local_delivery: received remote comment');
3403                                 $is_like = false;
3404                                 // remote reply to our post. Import and then notify everybody else.
3405
3406                                 $datarray = get_atom_elements($feed, $item);
3407
3408                                 $r = q("SELECT `id`, `uid`, `last-child`, `edited`, `body`  FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3409                                         dbesc($item_id),
3410                                         intval($importer['importer_uid'])
3411                                 );
3412
3413                                 // Update content if 'updated' changes
3414
3415                                 if(count($r)) {
3416                                         $iid = $r[0]['id'];
3417                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
3418
3419                                                 // do not accept (ignore) an earlier edit than one we currently have.
3420                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3421                                                         continue;
3422
3423                                                 logger('received updated comment' , LOGGER_DEBUG);
3424                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3425                                                         dbesc($datarray['title']),
3426                                                         dbesc($datarray['body']),
3427                                                         dbesc($datarray['tag']),
3428                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3429                                                         dbesc(datetime_convert()),
3430                                                         dbesc($item_id),
3431                                                         intval($importer['importer_uid'])
3432                                                 );
3433                                                 create_tags_from_itemuri($item_id, $importer['importer_uid']);
3434
3435                                                 proc_run('php',"include/notifier.php","comment-import",$iid);
3436
3437                                         }
3438
3439                                         continue;
3440                                 }
3441
3442
3443
3444                                 $own = q("select name,url,thumb from contact where uid = %d and self = 1 limit 1",
3445                                         intval($importer['importer_uid'])
3446                                 );
3447
3448
3449                                 $datarray['type'] = 'remote-comment';
3450                                 $datarray['wall'] = 1;
3451                                 $datarray['parent-uri'] = $parent_uri;
3452                                 $datarray['uid'] = $importer['importer_uid'];
3453                                 $datarray['owner-name'] = $own[0]['name'];
3454                                 $datarray['owner-link'] = $own[0]['url'];
3455                                 $datarray['owner-avatar'] = $own[0]['thumb'];
3456                                 $datarray['contact-id'] = $importer['id'];
3457
3458                                 if(($datarray['verb'] === ACTIVITY_LIKE) || ($datarray['verb'] === ACTIVITY_DISLIKE)) {
3459                                         $is_like = true;
3460                                         $datarray['type'] = 'activity';
3461                                         $datarray['gravity'] = GRAVITY_LIKE;
3462                                         $datarray['last-child'] = 0;
3463                                         // only one like or dislike per person
3464                                         // splitted into two queries for performance issues
3465                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`parent-uri` = '%s') and deleted = 0 limit 1",
3466                                                 intval($datarray['uid']),
3467                                                 intval($datarray['contact-id']),
3468                                                 dbesc($datarray['verb']),
3469                                                 dbesc($datarray['parent-uri'])
3470
3471                                         );
3472                                         if($r && count($r))
3473                                                 continue;
3474
3475                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb = '%s' and (`thr-parent` = '%s') and deleted = 0 limit 1",
3476                                                 intval($datarray['uid']),
3477                                                 intval($datarray['contact-id']),
3478                                                 dbesc($datarray['verb']),
3479                                                 dbesc($datarray['parent-uri'])
3480
3481                                         );
3482                                         if($r && count($r))
3483                                                 continue;
3484                                 }
3485
3486                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3487
3488                                         $xo = parse_xml_string($datarray['object'],false);
3489                                         $xt = parse_xml_string($datarray['target'],false);
3490
3491                                         if(($xt->type == ACTIVITY_OBJ_NOTE) && ($xt->id)) {
3492
3493                                                 // fetch the parent item
3494
3495                                                 $tagp = q("select * from item where uri = '%s' and uid = %d limit 1",
3496                                                         dbesc($xt->id),
3497                                                         intval($importer['importer_uid'])
3498                                                 );
3499                                                 if(! count($tagp))
3500                                                         continue;
3501
3502                                                 // extract tag, if not duplicate, and this user allows tags, add to parent item
3503
3504                                                 if($xo->id && $xo->content) {
3505                                                         $newtag = '#[url=' . $xo->id . ']'. $xo->content . '[/url]';
3506                                                         if(! (stristr($tagp[0]['tag'],$newtag))) {
3507                                                                 $i = q("SELECT `blocktags` FROM `user` where `uid` = %d LIMIT 1",
3508                                                                         intval($importer['importer_uid'])
3509                                                                 );
3510                                                                 if(count($i) && ! intval($i[0]['blocktags'])) {
3511                                                                         q("UPDATE item SET tag = '%s', `edited` = '%s', `changed` = '%s' WHERE id = %d",
3512                                                                                 dbesc($tagp[0]['tag'] . (strlen($tagp[0]['tag']) ? ',' : '') . $newtag),
3513                                                                                 intval($tagp[0]['id']),
3514                                                                                 dbesc(datetime_convert()),
3515                                                                                 dbesc(datetime_convert())
3516                                                                         );
3517                                                                         create_tags_from_item($tagp[0]['id']);
3518                                                                 }
3519                                                         }
3520                                                 }
3521                                         }
3522                                 }
3523
3524
3525                                 $posted_id = item_store($datarray);
3526                                 $parent = 0;
3527
3528                                 if($posted_id) {
3529                                         $r = q("SELECT `parent`, `parent-uri` FROM `item` WHERE `id` = %d AND `uid` = %d LIMIT 1",
3530                                                 intval($posted_id),
3531                                                 intval($importer['importer_uid'])
3532                                         );
3533                                         if(count($r)) {
3534                                                 $parent = $r[0]['parent'];
3535                                                 $parent_uri = $r[0]['parent-uri'];
3536                                         }
3537
3538                                         if(! $is_like) {
3539                                                 $r1 = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `uid` = %d AND `parent` = %d",
3540                                                         dbesc(datetime_convert()),
3541                                                         intval($importer['importer_uid']),
3542                                                         intval($r[0]['parent'])
3543                                                 );
3544
3545                                                 $r2 = q("UPDATE `item` SET `last-child` = 1, `changed` = '%s' WHERE `uid` = %d AND `id` = %d",
3546                                                         dbesc(datetime_convert()),
3547                                                         intval($importer['importer_uid']),
3548                                                         intval($posted_id)
3549                                                 );
3550                                         }
3551
3552                                         if($posted_id && $parent) {
3553
3554                                                 proc_run('php',"include/notifier.php","comment-import","$posted_id");
3555
3556                                                 if((! $is_like) && (! $importer['self'])) {
3557
3558                                                         require_once('include/enotify.php');
3559
3560                                                         notification(array(
3561                                                                 'type'         => NOTIFY_COMMENT,
3562                                                                 'notify_flags' => $importer['notify-flags'],
3563                                                                 'language'     => $importer['language'],
3564                                                                 'to_name'      => $importer['username'],
3565                                                                 'to_email'     => $importer['email'],
3566                                                                 'uid'          => $importer['importer_uid'],
3567                                                                 'item'         => $datarray,
3568                                                                 'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3569                                                                 'source_name'  => stripslashes($datarray['author-name']),
3570                                                                 'source_link'  => $datarray['author-link'],
3571                                                                 'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3572                                                                         ? $importer['thumb'] : $datarray['author-avatar']),
3573                                                                 'verb'         => ACTIVITY_POST,
3574                                                                 'otype'        => 'item',
3575                                                                 'parent'       => $parent,
3576                                                                 'parent_uri'   => $parent_uri,
3577                                                         ));
3578
3579                                                 }
3580                                         }
3581
3582                                         return 0;
3583                                         // NOTREACHED
3584                                 }
3585                         }
3586                         else {
3587
3588                                 // regular comment that is part of this total conversation. Have we seen it? If not, import it.
3589
3590                                 $item_id  = $item->get_id();
3591                                 $datarray = get_atom_elements($feed,$item);
3592
3593                                 if($importer['rel'] == CONTACT_IS_FOLLOWER)
3594                                         continue;
3595
3596                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3597                                         dbesc($item_id),
3598                                         intval($importer['importer_uid'])
3599                                 );
3600
3601                                 // Update content if 'updated' changes
3602
3603                                 if(count($r)) {
3604                                         if (edited_timestamp_is_newer($r[0], $datarray)) {
3605
3606                                                 // do not accept (ignore) an earlier edit than one we currently have.
3607                                                 if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3608                                                         continue;
3609
3610                                                 $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3611                                                         dbesc($datarray['title']),
3612                                                         dbesc($datarray['body']),
3613                                                         dbesc($datarray['tag']),
3614                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3615                                                         dbesc(datetime_convert()),
3616                                                         dbesc($item_id),
3617                                                         intval($importer['importer_uid'])
3618                                                 );
3619                                                 create_tags_from_itemuri($item_id, $importer['importer_uid']);
3620                                         }
3621
3622                                         // update last-child if it changes
3623
3624                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3625                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
3626                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
3627                                                         dbesc(datetime_convert()),
3628                                                         dbesc($parent_uri),
3629                                                         intval($importer['importer_uid'])
3630                                                 );
3631                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d",
3632                                                         intval($allow[0]['data']),
3633                                                         dbesc(datetime_convert()),
3634                                                         dbesc($item_id),
3635                                                         intval($importer['importer_uid'])
3636                                                 );
3637                                         }
3638                                         continue;
3639                                 }
3640
3641                                 $datarray['parent-uri'] = $parent_uri;
3642                                 $datarray['uid'] = $importer['importer_uid'];
3643                                 $datarray['contact-id'] = $importer['id'];
3644                                 if(($datarray['verb'] == ACTIVITY_LIKE) || ($datarray['verb'] == ACTIVITY_DISLIKE)) {
3645                                         $datarray['type'] = 'activity';
3646                                         $datarray['gravity'] = GRAVITY_LIKE;
3647                                         // only one like or dislike per person
3648                                         // splitted into two queries for performance issues
3649                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`parent-uri` = '%s') limit 1",
3650                                                 intval($datarray['uid']),
3651                                                 intval($datarray['contact-id']),
3652                                                 dbesc($datarray['verb']),
3653                                                 dbesc($parent_uri)
3654                                         );
3655                                         if($r && count($r))
3656                                                 continue;
3657
3658                                         $r = q("select id from item where uid = %d and `contact-id` = %d and verb ='%s' and deleted = 0 and (`thr-parent` = '%s') limit 1",
3659                                                 intval($datarray['uid']),
3660                                                 intval($datarray['contact-id']),
3661                                                 dbesc($datarray['verb']),
3662                                                 dbesc($parent_uri)
3663                                         );
3664                                         if($r && count($r))
3665                                                 continue;
3666
3667                                 }
3668
3669                                 if(($datarray['verb'] === ACTIVITY_TAG) && ($datarray['object-type'] === ACTIVITY_OBJ_TAGTERM)) {
3670
3671                                         $xo = parse_xml_string($datarray['object'],false);
3672                                         $xt = parse_xml_string($datarray['target'],false);
3673
3674                                         if($xt->type == ACTIVITY_OBJ_NOTE) {
3675                                                 $r = q("select * from item where `uri` = '%s' AND `uid` = %d limit 1",
3676                                                         dbesc($xt->id),
3677                                                         intval($importer['importer_uid'])
3678                                                 );
3679                                                 if(! count($r))
3680                                                         continue;
3681
3682                                                 // extract tag, if not duplicate, add to parent item
3683                                                 if($xo->content) {
3684                                                         if(! (stristr($r[0]['tag'],trim($xo->content)))) {
3685                                                                 q("UPDATE item SET tag = '%s' WHERE id = %d",
3686                                                                         dbesc($r[0]['tag'] . (strlen($r[0]['tag']) ? ',' : '') . '#[url=' . $xo->id . ']'. $xo->content . '[/url]'),
3687                                                                         intval($r[0]['id'])
3688                                                                 );
3689                                                                 create_tags_from_item($r[0]['id']);
3690                                                         }
3691                                                 }
3692                                         }
3693                                 }
3694
3695                                 $posted_id = item_store($datarray);
3696
3697                                 // find out if our user is involved in this conversation and wants to be notified.
3698
3699                                 if(!x($datarray['type']) || $datarray['type'] != 'activity') {
3700
3701                                         $myconv = q("SELECT `author-link`, `author-avatar`, `parent` FROM `item` WHERE `parent-uri` = '%s' AND `uid` = %d AND `parent` != 0 AND `deleted` = 0",
3702                                                 dbesc($top_uri),
3703                                                 intval($importer['importer_uid'])
3704                                         );
3705
3706                                         if(count($myconv)) {
3707                                                 $importer_url = $a->get_baseurl() . '/profile/' . $importer['nickname'];
3708
3709                                                 // first make sure this isn't our own post coming back to us from a wall-to-wall event
3710                                                 if(! link_compare($datarray['author-link'],$importer_url)) {
3711
3712
3713                                                         foreach($myconv as $conv) {
3714
3715                                                                 // now if we find a match, it means we're in this conversation
3716
3717                                                                 if(! link_compare($conv['author-link'],$importer_url))
3718                                                                         continue;
3719
3720                                                                 require_once('include/enotify.php');
3721
3722                                                                 $conv_parent = $conv['parent'];
3723
3724                                                                 notification(array(
3725                                                                         'type'         => NOTIFY_COMMENT,
3726                                                                         'notify_flags' => $importer['notify-flags'],
3727                                                                         'language'     => $importer['language'],
3728                                                                         'to_name'      => $importer['username'],
3729                                                                         'to_email'     => $importer['email'],
3730                                                                         'uid'          => $importer['importer_uid'],
3731                                                                         'item'         => $datarray,
3732                                                                         'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3733                                                                         'source_name'  => stripslashes($datarray['author-name']),
3734                                                                         'source_link'  => $datarray['author-link'],
3735                                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3736                                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3737                                                                         'verb'         => ACTIVITY_POST,
3738                                                                         'otype'        => 'item',
3739                                                                         'parent'       => $conv_parent,
3740                                                                         'parent_uri'   => $parent_uri
3741
3742                                                                 ));
3743
3744                                                                 // only send one notification
3745                                                                 break;
3746                                                         }
3747                                                 }
3748                                         }
3749                                 }
3750                                 continue;
3751                         }
3752                 }
3753
3754                 else {
3755
3756                         // Head post of a conversation. Have we seen it? If not, import it.
3757
3758
3759                         $item_id  = $item->get_id();
3760                         $datarray = get_atom_elements($feed,$item);
3761
3762                         if((x($datarray,'object-type')) && ($datarray['object-type'] === ACTIVITY_OBJ_EVENT)) {
3763                                 $ev = bbtoevent($datarray['body']);
3764                                 if(x($ev,'desc') && x($ev,'start')) {
3765                                         $ev['cid'] = $importer['id'];
3766                                         $ev['uid'] = $importer['uid'];
3767                                         $ev['uri'] = $item_id;
3768                                         $ev['edited'] = $datarray['edited'];
3769                                         $ev['private'] = $datarray['private'];
3770
3771                                         $r = q("SELECT * FROM `event` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3772                                                 dbesc($item_id),
3773                                                 intval($importer['uid'])
3774                                         );
3775                                         if(count($r))
3776                                                 $ev['id'] = $r[0]['id'];
3777                                         $xyz = event_store($ev);
3778                                         continue;
3779                                 }
3780                         }
3781
3782                         $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
3783                                 dbesc($item_id),
3784                                 intval($importer['importer_uid'])
3785                         );
3786
3787                         // Update content if 'updated' changes
3788
3789                         if(count($r)) {
3790                                 if (edited_timestamp_is_newer($r[0], $datarray)) {
3791
3792                                         // do not accept (ignore) an earlier edit than one we currently have.
3793                                         if(datetime_convert('UTC','UTC',$datarray['edited']) < $r[0]['edited'])
3794                                                 continue;
3795
3796                                         $r = q("UPDATE `item` SET `title` = '%s', `body` = '%s', `tag` = '%s', `edited` = '%s', `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3797                                                 dbesc($datarray['title']),
3798                                                 dbesc($datarray['body']),
3799                                                 dbesc($datarray['tag']),
3800                                                 dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
3801                                                 dbesc(datetime_convert()),
3802                                                 dbesc($item_id),
3803                                                 intval($importer['importer_uid'])
3804                                         );
3805                                         create_tags_from_itemuri($item_id, $importer['importer_uid']);
3806                                         update_thread_uri($item_id, $importer['importer_uid']);
3807                                 }
3808
3809                                 // update last-child if it changes
3810
3811                                 $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
3812                                 if($allow && $allow[0]['data'] != $r[0]['last-child']) {
3813                                         $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d",
3814                                                 intval($allow[0]['data']),
3815                                                 dbesc(datetime_convert()),
3816                                                 dbesc($item_id),
3817                                                 intval($importer['importer_uid'])
3818                                         );
3819                                 }
3820                                 continue;
3821                         }
3822
3823                         $datarray['parent-uri'] = $item_id;
3824                         $datarray['uid'] = $importer['importer_uid'];
3825                         $datarray['contact-id'] = $importer['id'];
3826
3827
3828                         if(! link_compare($datarray['owner-link'],$importer['url'])) {
3829                                 // The item owner info is not our contact. It's OK and is to be expected if this is a tgroup delivery,
3830                                 // but otherwise there's a possible data mixup on the sender's system.
3831                                 // the tgroup delivery code called from item_store will correct it if it's a forum,
3832                                 // but we're going to unconditionally correct it here so that the post will always be owned by our contact.
3833                                 logger('local_delivery: Correcting item owner.', LOGGER_DEBUG);
3834                                 $datarray['owner-name']   = $importer['senderName'];
3835                                 $datarray['owner-link']   = $importer['url'];
3836                                 $datarray['owner-avatar'] = $importer['thumb'];
3837                         }
3838
3839                         if(($importer['rel'] == CONTACT_IS_FOLLOWER) && (! tgroup_check($importer['importer_uid'],$datarray)))
3840                                 continue;
3841
3842                         // This is my contact on another system, but it's really me.
3843                         // Turn this into a wall post.
3844                         $notify = item_is_remote_self($importer, $datarray);
3845
3846                         $posted_id = item_store($datarray, false, $notify);
3847
3848                         if(stristr($datarray['verb'],ACTIVITY_POKE)) {
3849                                 $verb = urldecode(substr($datarray['verb'],strpos($datarray['verb'],'#')+1));
3850                                 if(! $verb)
3851                                         continue;
3852                                 $xo = parse_xml_string($datarray['object'],false);
3853
3854                                 if(($xo->type == ACTIVITY_OBJ_PERSON) && ($xo->id)) {
3855
3856                                         // somebody was poked/prodded. Was it me?
3857
3858                                         $links = parse_xml_string("<links>".unxmlify($xo->link)."</links>",false);
3859
3860                                 foreach($links->link as $l) {
3861                                 $atts = $l->attributes();
3862                                 switch($atts['rel']) {
3863                                         case "alternate":
3864                                                                 $Blink = $atts['href'];
3865                                                                 break;
3866                                                         default:
3867                                                                 break;
3868                                     }
3869                                 }
3870                                         if($Blink && link_compare($Blink,$a->get_baseurl() . '/profile/' . $importer['nickname'])) {
3871
3872                                                 // send a notification
3873                                                 require_once('include/enotify.php');
3874
3875                                                 notification(array(
3876                                                         'type'         => NOTIFY_POKE,
3877                                                         'notify_flags' => $importer['notify-flags'],
3878                                                         'language'     => $importer['language'],
3879                                                         'to_name'      => $importer['username'],
3880                                                         'to_email'     => $importer['email'],
3881                                                         'uid'          => $importer['importer_uid'],
3882                                                         'item'         => $datarray,
3883                                                         'link'             => $a->get_baseurl().'/display/'.urlencode(get_item_guid($posted_id)),
3884                                                         'source_name'  => stripslashes($datarray['author-name']),
3885                                                         'source_link'  => $datarray['author-link'],
3886                                                         'source_photo' => ((link_compare($datarray['author-link'],$importer['url']))
3887                                                                 ? $importer['thumb'] : $datarray['author-avatar']),
3888                                                         'verb'         => $datarray['verb'],
3889                                                         'otype'        => 'person',
3890                                                         'activity'     => $verb,
3891
3892                                                 ));
3893                                         }
3894                                 }
3895                         }
3896
3897                         continue;
3898                 }
3899         }
3900
3901         return 0;
3902         // NOTREACHED
3903
3904 }
3905
3906
3907 function new_follower($importer,$contact,$datarray,$item,$sharing = false) {
3908         $url = notags(trim($datarray['author-link']));
3909         $name = notags(trim($datarray['author-name']));
3910         $photo = notags(trim($datarray['author-avatar']));
3911
3912         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
3913         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
3914                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
3915
3916         if(is_array($contact)) {
3917                 if(($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
3918                         || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
3919                         $r = q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
3920                                 intval(CONTACT_IS_FRIEND),
3921                                 intval($contact['id']),
3922                                 intval($importer['uid'])
3923                         );
3924                 }
3925                 // send email notification to owner?
3926         }
3927         else {
3928
3929                 // create contact record
3930
3931                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
3932                         `blocked`, `readonly`, `pending`, `writable` )
3933                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1 ) ",
3934                         intval($importer['uid']),
3935                         dbesc(datetime_convert()),
3936                         dbesc($url),
3937                         dbesc(normalise_link($url)),
3938                         dbesc($name),
3939                         dbesc($nick),
3940                         dbesc($photo),
3941                         dbesc(($sharing) ? NETWORK_ZOT : NETWORK_OSTATUS),
3942                         intval(($sharing) ? CONTACT_IS_SHARING : CONTACT_IS_FOLLOWER)
3943                 );
3944                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 LIMIT 1",
3945                                 intval($importer['uid']),
3946                                 dbesc($url)
3947                 );
3948                 if(count($r))
3949                                 $contact_record = $r[0];
3950
3951                 // create notification
3952                 $hash = random_string();
3953
3954                 if(is_array($contact_record)) {
3955                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
3956                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
3957                                 intval($importer['uid']),
3958                                 intval($contact_record['id']),
3959                                 dbesc($hash),
3960                                 dbesc(datetime_convert())
3961                         );
3962                 }
3963
3964                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
3965                         intval($importer['uid'])
3966                 );
3967                 $a = get_app();
3968                 if(count($r)) {
3969
3970                         if(intval($r[0]['def_gid'])) {
3971                                 require_once('include/group.php');
3972                                 group_add_member($r[0]['uid'],'',$contact_record['id'],$r[0]['def_gid']);
3973                         }
3974
3975                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) &&
3976                                 (($r[0]['page-flags'] == PAGE_NORMAL) OR ($r[0]['page-flags'] == PAGE_SOAPBOX))) {
3977
3978
3979
3980                                 notification(array(
3981                                         'type'         => NOTIFY_INTRO,
3982                                         'notify_flags' => $r[0]['notify-flags'],
3983                                         'language'     => $r[0]['language'],
3984                                         'to_name'      => $r[0]['username'],
3985                                         'to_email'     => $r[0]['email'],
3986                                         'uid'          => $r[0]['uid'],
3987                                         'link'             => $a->get_baseurl() . '/notifications/intro',
3988                                         'source_name'  => ((strlen(stripslashes($contact_record['name']))) ? stripslashes($contact_record['name']) : t('[Name Withheld]')),
3989                                         'source_link'  => $contact_record['url'],
3990                                         'source_photo' => $contact_record['photo'],
3991                                         'verb'         => ($sharing ? ACTIVITY_FRIEND : ACTIVITY_FOLLOW),
3992                                         'otype'        => 'intro'
3993                                 ));
3994
3995
3996                         }
3997                 }
3998         }
3999 }
4000
4001 function lose_follower($importer,$contact,$datarray,$item) {
4002
4003         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
4004                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d",
4005                         intval(CONTACT_IS_SHARING),
4006                         intval($contact['id'])
4007                 );
4008         }
4009         else {
4010                 contact_remove($contact['id']);
4011         }
4012 }
4013
4014 function lose_sharer($importer,$contact,$datarray,$item) {
4015
4016         if(($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
4017                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d",
4018                         intval(CONTACT_IS_FOLLOWER),
4019                         intval($contact['id'])
4020                 );
4021         }
4022         else {
4023                 contact_remove($contact['id']);
4024         }
4025 }
4026
4027
4028 function subscribe_to_hub($url,$importer,$contact,$hubmode = 'subscribe') {
4029
4030         $a = get_app();
4031
4032         if(is_array($importer)) {
4033                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
4034                         intval($importer['uid'])
4035                 );
4036         }
4037
4038         // Diaspora has different message-ids in feeds than they do
4039         // through the direct Diaspora protocol. If we try and use
4040         // the feed, we'll get duplicates. So don't.
4041
4042         if((! count($r)) || $contact['network'] === NETWORK_DIASPORA)
4043                 return;
4044
4045         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
4046
4047         // Use a single verify token, even if multiple hubs
4048
4049         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
4050
4051         $params= 'hub.mode=' . $hubmode . '&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
4052
4053         logger('subscribe_to_hub: ' . $hubmode . ' ' . $contact['name'] . ' to hub ' . $url . ' endpoint: '  . $push_url . ' with verifier ' . $verify_token);
4054
4055         if(! strlen($contact['hub-verify'])) {
4056                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d",
4057                         dbesc($verify_token),
4058                         intval($contact['id'])
4059                 );
4060         }
4061
4062         post_url($url,$params);
4063
4064         logger('subscribe_to_hub: returns: ' . $a->get_curl_code(), LOGGER_DEBUG);
4065
4066         return;
4067
4068 }
4069
4070
4071 function atom_author($tag,$name,$uri,$h,$w,$photo) {
4072         $o = '';
4073         if(! $tag)
4074                 return $o;
4075         $name = xmlify($name);
4076         $uri = xmlify($uri);
4077         $h = intval($h);
4078         $w = intval($w);
4079         $photo = xmlify($photo);
4080
4081
4082         $o .= "<$tag>\r\n";
4083         $o .= "<name>$name</name>\r\n";
4084         $o .= "<uri>$uri</uri>\r\n";
4085         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
4086         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
4087
4088         call_hooks('atom_author', $o);
4089
4090         $o .= "</$tag>\r\n";
4091         return $o;
4092 }
4093
4094 function atom_entry($item,$type,$author,$owner,$comment = false,$cid = 0) {
4095
4096         $a = get_app();
4097
4098         if(! $item['parent'])
4099                 return;
4100
4101         if($item['deleted'])
4102                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
4103
4104
4105         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
4106                 $body = fix_private_photos($item['body'],$owner['uid'],$item,$cid);
4107         else
4108                 $body = $item['body'];
4109
4110
4111         $o = "\r\n\r\n<entry>\r\n";
4112
4113         if(is_array($author))
4114                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
4115         else
4116                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
4117         if(strlen($item['owner-name']))
4118                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
4119
4120         if(($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
4121                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
4122                 $o .= '<thr:in-reply-to ref="' . xmlify($parent_item) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['parent']) . '" />' . "\r\n";
4123         }
4124
4125         $htmlbody = $body;
4126
4127         if ($item['title'] != "")
4128                 $htmlbody = "[b]".$item['title']."[/b]\n\n".$htmlbody;
4129
4130         $htmlbody = bbcode(bb_remove_share_information($htmlbody), false, false, 7);
4131
4132         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
4133         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
4134         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
4135         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
4136         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
4137         $o .= '<content type="' . $type . '" >' . xmlify((($type === 'html') ? $htmlbody : $body)) . '</content>' . "\r\n";
4138         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
4139
4140
4141         if($comment)
4142                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
4143
4144         if($item['location']) {
4145                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
4146                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
4147         }
4148
4149         if($item['coord'])
4150                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
4151
4152         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
4153                 $o .= '<dfrn:private>' . (($item['private']) ? $item['private'] : 1) . '</dfrn:private>' . "\r\n";
4154
4155         if($item['extid'])
4156                 $o .= '<dfrn:extid>' . xmlify($item['extid']) . '</dfrn:extid>' . "\r\n";
4157         if($item['bookmark'])
4158                 $o .= '<dfrn:bookmark>true</dfrn:bookmark>' . "\r\n";
4159
4160         if($item['app'])
4161                 $o .= '<statusnet:notice_info local_id="' . $item['id'] . '" source="' . xmlify($item['app']) . '" ></statusnet:notice_info>' . "\r\n";
4162
4163         if($item['guid'])
4164                 $o .= '<dfrn:diaspora_guid>' . $item['guid'] . '</dfrn:diaspora_guid>' . "\r\n";
4165
4166         if($item['signed_text']) {
4167                 $sign = base64_encode(json_encode(array('signed_text' => $item['signed_text'],'signature' => $item['signature'],'signer' => $item['signer'])));
4168                 $o .= '<dfrn:diaspora_signature>' . xmlify($sign) . '</dfrn:diaspora_signature>' . "\r\n";
4169         }
4170
4171         $verb = construct_verb($item);
4172         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
4173         $actobj = construct_activity_object($item);
4174         if(strlen($actobj))
4175                 $o .= $actobj;
4176         $actarg = construct_activity_target($item);
4177         if(strlen($actarg))
4178                 $o .= $actarg;
4179
4180         $tags = item_getfeedtags($item);
4181         if(count($tags)) {
4182                 foreach($tags as $t) {
4183                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
4184                 }
4185         }
4186
4187         $o .= item_getfeedattach($item);
4188
4189         $mentioned = get_mentions($item);
4190         if($mentioned)
4191                 $o .= $mentioned;
4192
4193         call_hooks('atom_entry', $o);
4194
4195         $o .= '</entry>' . "\r\n";
4196
4197         return $o;
4198 }
4199
4200 function fix_private_photos($s, $uid, $item = null, $cid = 0) {
4201
4202         if(get_config('system','disable_embedded'))
4203                 return $s;
4204
4205         $a = get_app();
4206
4207         logger('fix_private_photos: check for photos', LOGGER_DEBUG);
4208         $site = substr($a->get_baseurl(),strpos($a->get_baseurl(),'://'));
4209
4210         $orig_body = $s;
4211         $new_body = '';
4212
4213         $img_start = strpos($orig_body, '[img');
4214         $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
4215         $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
4216         while( ($img_st_close !== false) && ($img_len !== false) ) {
4217
4218                 $img_st_close++; // make it point to AFTER the closing bracket
4219                 $image = substr($orig_body, $img_start + $img_st_close, $img_len);
4220
4221                 logger('fix_private_photos: found photo ' . $image, LOGGER_DEBUG);
4222
4223
4224                 if(stristr($image , $site . '/photo/')) {
4225                         // Only embed locally hosted photos
4226                         $replace = false;
4227                         $i = basename($image);
4228                         $i = str_replace(array('.jpg','.png','.gif'),array('','',''),$i);
4229                         $x = strpos($i,'-');
4230
4231                         if($x) {
4232                                 $res = substr($i,$x+1);
4233                                 $i = substr($i,0,$x);
4234                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
4235                                         dbesc($i),
4236                                         intval($res),
4237                                         intval($uid)
4238                                 );
4239                                 if($r) {
4240
4241                                         // Check to see if we should replace this photo link with an embedded image
4242                                         // 1. No need to do so if the photo is public
4243                                         // 2. If there's a contact-id provided, see if they're in the access list
4244                                         //    for the photo. If so, embed it.
4245                                         // 3. Otherwise, if we have an item, see if the item permissions match the photo
4246                                         //    permissions, regardless of order but first check to see if they're an exact
4247                                         //    match to save some processing overhead.
4248
4249                                         if(has_permissions($r[0])) {
4250                                                 if($cid) {
4251                                                         $recips = enumerate_permissions($r[0]);
4252                                                         if(in_array($cid, $recips)) {
4253                                                                 $replace = true;
4254                                                         }
4255                                                 }
4256                                                 elseif($item) {
4257                                                         if(compare_permissions($item,$r[0]))
4258                                                                 $replace = true;
4259                                                 }
4260                                         }
4261                                         if($replace) {
4262                                                 $data = $r[0]['data'];
4263                                                 $type = $r[0]['type'];
4264
4265                                                 // If a custom width and height were specified, apply before embedding
4266                                                 if(preg_match("/\[img\=([0-9]*)x([0-9]*)\]/is", substr($orig_body, $img_start, $img_st_close), $match)) {
4267                                                         logger('fix_private_photos: scaling photo', LOGGER_DEBUG);
4268
4269                                                         $width = intval($match[1]);
4270                                                         $height = intval($match[2]);
4271
4272                                                         $ph = new Photo($data, $type);
4273                                                         if($ph->is_valid()) {
4274                                                                 $ph->scaleImage(max($width, $height));
4275                                                                 $data = $ph->imageString();
4276                                                                 $type = $ph->getType();
4277                                                         }
4278                                                 }
4279
4280                                                 logger('fix_private_photos: replacing photo', LOGGER_DEBUG);
4281                                                 $image = 'data:' . $type . ';base64,' . base64_encode($data);
4282                                                 logger('fix_private_photos: replaced: ' . $image, LOGGER_DATA);
4283                                         }
4284                                 }
4285                         }
4286                 }
4287
4288                 $new_body = $new_body . substr($orig_body, 0, $img_start + $img_st_close) . $image . '[/img]';
4289                 $orig_body = substr($orig_body, $img_start + $img_st_close + $img_len + strlen('[/img]'));
4290                 if($orig_body === false)
4291                         $orig_body = '';
4292
4293                 $img_start = strpos($orig_body, '[img');
4294                 $img_st_close = ($img_start !== false ? strpos(substr($orig_body, $img_start), ']') : false);
4295                 $img_len = ($img_start !== false ? strpos(substr($orig_body, $img_start + $img_st_close + 1), '[/img]') : false);
4296         }
4297
4298         $new_body = $new_body . $orig_body;
4299
4300         return($new_body);
4301 }
4302
4303
4304 function has_permissions($obj) {
4305         if(($obj['allow_cid'] != '') || ($obj['allow_gid'] != '') || ($obj['deny_cid'] != '') || ($obj['deny_gid'] != ''))
4306                 return true;
4307         return false;
4308 }
4309
4310 function compare_permissions($obj1,$obj2) {
4311         // first part is easy. Check that these are exactly the same.
4312         if(($obj1['allow_cid'] == $obj2['allow_cid'])
4313                 && ($obj1['allow_gid'] == $obj2['allow_gid'])
4314                 && ($obj1['deny_cid'] == $obj2['deny_cid'])
4315                 && ($obj1['deny_gid'] == $obj2['deny_gid']))
4316                 return true;
4317
4318         // This is harder. Parse all the permissions and compare the resulting set.
4319
4320         $recipients1 = enumerate_permissions($obj1);
4321         $recipients2 = enumerate_permissions($obj2);
4322         sort($recipients1);
4323         sort($recipients2);
4324         if($recipients1 == $recipients2)
4325                 return true;
4326         return false;
4327 }
4328
4329 // returns an array of contact-ids that are allowed to see this object
4330
4331 function enumerate_permissions($obj) {
4332         require_once('include/group.php');
4333         $allow_people = expand_acl($obj['allow_cid']);
4334         $allow_groups = expand_groups(expand_acl($obj['allow_gid']));
4335         $deny_people  = expand_acl($obj['deny_cid']);
4336         $deny_groups  = expand_groups(expand_acl($obj['deny_gid']));
4337         $recipients   = array_unique(array_merge($allow_people,$allow_groups));
4338         $deny         = array_unique(array_merge($deny_people,$deny_groups));
4339         $recipients   = array_diff($recipients,$deny);
4340         return $recipients;
4341 }
4342
4343 function item_getfeedtags($item) {
4344         $ret = array();
4345         $matches = false;
4346         $cnt = preg_match_all('|\#\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
4347         if($cnt) {
4348                 for($x = 0; $x < $cnt; $x ++) {
4349                         if($matches[1][$x])
4350                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
4351                 }
4352         }
4353         $matches = false;
4354         $cnt = preg_match_all('|\@\[url\=(.*?)\](.*?)\[\/url\]|',$item['tag'],$matches);
4355         if($cnt) {
4356                 for($x = 0; $x < $cnt; $x ++) {
4357                         if($matches[1][$x])
4358                                 $ret[] = array('@',$matches[1][$x], $matches[2][$x]);
4359                 }
4360         }
4361         return $ret;
4362 }
4363
4364 function item_getfeedattach($item) {
4365         $ret = '';
4366         $arr = explode('[/attach],',$item['attach']);
4367         if(count($arr)) {
4368                 foreach($arr as $r) {
4369                         $matches = false;
4370                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
4371                         if($cnt) {
4372                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
4373                                 if(intval($matches[2]))
4374                                         $ret .= 'length="' . intval($matches[2]) . '" ';
4375                                 if($matches[4] !== ' ')
4376                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
4377                                 $ret .= ' />' . "\r\n";
4378                         }
4379                 }
4380         }
4381         return $ret;
4382 }
4383
4384
4385
4386 function item_expire($uid, $days, $network = "", $force = false) {
4387
4388         if((! $uid) || ($days < 1))
4389                 return;
4390
4391         // $expire_network_only = save your own wall posts
4392         // and just expire conversations started by others
4393
4394         $expire_network_only = get_pconfig($uid,'expire','network_only');
4395         $sql_extra = ((intval($expire_network_only)) ? " AND wall = 0 " : "");
4396
4397         if ($network != "") {
4398                 $sql_extra .= sprintf(" AND network = '%s' ", dbesc($network));
4399                 // There is an index "uid_network_received" but not "uid_network_created"
4400                 // This avoids the creation of another index just for one purpose.
4401                 // And it doesn't really matter wether to look at "received" or "created"
4402                 $range = "AND `received` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
4403         } else
4404                 $range = "AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY ";
4405
4406         $r = q("SELECT * FROM `item`
4407                 WHERE `uid` = %d $range
4408                 AND `id` = `parent`
4409                 $sql_extra
4410                 AND `deleted` = 0",
4411                 intval($uid),
4412                 intval($days)
4413         );
4414
4415         if(! count($r))
4416                 return;
4417
4418         $expire_items = get_pconfig($uid, 'expire','items');
4419         $expire_items = (($expire_items===false)?1:intval($expire_items)); // default if not set: 1
4420
4421         // Forcing expiring of items - but not notes and marked items
4422         if ($force)
4423                 $expire_items = true;
4424
4425         $expire_notes = get_pconfig($uid, 'expire','notes');
4426         $expire_notes = (($expire_notes===false)?1:intval($expire_notes)); // default if not set: 1
4427
4428         $expire_starred = get_pconfig($uid, 'expire','starred');
4429         $expire_starred = (($expire_starred===false)?1:intval($expire_starred)); // default if not set: 1
4430
4431         $expire_photos = get_pconfig($uid, 'expire','photos');
4432         $expire_photos = (($expire_photos===false)?0:intval($expire_photos)); // default if not set: 0
4433
4434         logger('expire: # items=' . count($r). "; expire items: $expire_items, expire notes: $expire_notes, expire starred: $expire_starred, expire photos: $expire_photos");
4435
4436         foreach($r as $item) {
4437
4438                 // don't expire filed items
4439
4440                 if(strpos($item['file'],'[') !== false)
4441                         continue;
4442
4443                 // Only expire posts, not photos and photo comments
4444
4445                 if($expire_photos==0 && strlen($item['resource-id']))
4446                         continue;
4447                 if($expire_starred==0 && intval($item['starred']))
4448                         continue;
4449                 if($expire_notes==0 && $item['type']=='note')
4450                         continue;
4451                 if($expire_items==0 && $item['type']!='note')
4452                         continue;
4453
4454                 drop_item($item['id'],false);
4455         }
4456
4457         proc_run('php',"include/notifier.php","expire","$uid");
4458
4459 }
4460
4461
4462 function drop_items($items) {
4463         $uid = 0;
4464
4465         if(! local_user() && ! remote_user())
4466                 return;
4467
4468         if(count($items)) {
4469                 foreach($items as $item) {
4470                         $owner = drop_item($item,false);
4471                         if($owner && ! $uid)
4472                                 $uid = $owner;
4473                 }
4474         }
4475
4476         // multiple threads may have been deleted, send an expire notification
4477
4478         if($uid)
4479                 proc_run('php',"include/notifier.php","expire","$uid");
4480 }
4481
4482
4483 function drop_item($id,$interactive = true) {
4484
4485         $a = get_app();
4486
4487         // locate item to be deleted
4488
4489         $r = q("SELECT * FROM `item` WHERE `id` = %d LIMIT 1",
4490                 intval($id)
4491         );
4492
4493         if(! count($r)) {
4494                 if(! $interactive)
4495                         return 0;
4496                 notice( t('Item not found.') . EOL);
4497                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4498         }
4499
4500         $item = $r[0];
4501
4502         $owner = $item['uid'];
4503
4504         $cid = 0;
4505
4506         // check if logged in user is either the author or owner of this item
4507
4508         if(is_array($_SESSION['remote'])) {
4509                 foreach($_SESSION['remote'] as $visitor) {
4510                         if($visitor['uid'] == $item['uid'] && $visitor['cid'] == $item['contact-id']) {
4511                                 $cid = $visitor['cid'];
4512                                 break;
4513                         }
4514                 }
4515         }
4516
4517
4518         if((local_user() == $item['uid']) || ($cid) || (! $interactive)) {
4519
4520                 // Check if we should do HTML-based delete confirmation
4521                 if($_REQUEST['confirm']) {
4522                         // <form> can't take arguments in its "action" parameter
4523                         // so add any arguments as hidden inputs
4524                         $query = explode_querystring($a->query_string);
4525                         $inputs = array();
4526                         foreach($query['args'] as $arg) {
4527                                 if(strpos($arg, 'confirm=') === false) {
4528                                         $arg_parts = explode('=', $arg);
4529                                         $inputs[] = array('name' => $arg_parts[0], 'value' => $arg_parts[1]);
4530                                 }
4531                         }
4532
4533                         return replace_macros(get_markup_template('confirm.tpl'), array(
4534                                 '$method' => 'get',
4535                                 '$message' => t('Do you really want to delete this item?'),
4536                                 '$extra_inputs' => $inputs,
4537                                 '$confirm' => t('Yes'),
4538                                 '$confirm_url' => $query['base'],
4539                                 '$confirm_name' => 'confirmed',
4540                                 '$cancel' => t('Cancel'),
4541                         ));
4542                 }
4543                 // Now check how the user responded to the confirmation query
4544                 if($_REQUEST['canceled']) {
4545                         goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4546                 }
4547
4548                 logger('delete item: ' . $item['id'], LOGGER_DEBUG);
4549                 // delete the item
4550
4551                 $r = q("UPDATE `item` SET `deleted` = 1, `title` = '', `body` = '', `edited` = '%s', `changed` = '%s' WHERE `id` = %d",
4552                         dbesc(datetime_convert()),
4553                         dbesc(datetime_convert()),
4554                         intval($item['id'])
4555                 );
4556                 create_tags_from_item($item['id']);
4557                 create_files_from_item($item['id']);
4558                 delete_thread($item['id'], $item['parent-uri']);
4559
4560                 // clean up categories and tags so they don't end up as orphans
4561
4562                 $matches = false;
4563                 $cnt = preg_match_all('/<(.*?)>/',$item['file'],$matches,PREG_SET_ORDER);
4564                 if($cnt) {
4565                         foreach($matches as $mtch) {
4566                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],true);
4567                         }
4568                 }
4569
4570                 $matches = false;
4571
4572                 $cnt = preg_match_all('/\[(.*?)\]/',$item['file'],$matches,PREG_SET_ORDER);
4573                 if($cnt) {
4574                         foreach($matches as $mtch) {
4575                                 file_tag_unsave_file($item['uid'],$item['id'],$mtch[1],false);
4576                         }
4577                 }
4578
4579                 // If item is a link to a photo resource, nuke all the associated photos
4580                 // (visitors will not have photo resources)
4581                 // This only applies to photos uploaded from the photos page. Photos inserted into a post do not
4582                 // generate a resource-id and therefore aren't intimately linked to the item.
4583
4584                 if(strlen($item['resource-id'])) {
4585                         q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `uid` = %d ",
4586                                 dbesc($item['resource-id']),
4587                                 intval($item['uid'])
4588                         );
4589                         // ignore the result
4590                 }
4591
4592                 // If item is a link to an event, nuke the event record.
4593
4594                 if(intval($item['event-id'])) {
4595                         q("DELETE FROM `event` WHERE `id` = %d AND `uid` = %d",
4596                                 intval($item['event-id']),
4597                                 intval($item['uid'])
4598                         );
4599                         // ignore the result
4600                 }
4601
4602                 // clean up item_id and sign meta-data tables
4603
4604                 /*
4605                 // Old code - caused very long queries and warning entries in the mysql logfiles:
4606
4607                 $r = q("DELETE FROM item_id where iid in (select id from item where parent = %d and uid = %d)",
4608                         intval($item['id']),
4609                         intval($item['uid'])
4610                 );
4611
4612                 $r = q("DELETE FROM sign where iid in (select id from item where parent = %d and uid = %d)",
4613                         intval($item['id']),
4614                         intval($item['uid'])
4615                 );
4616                 */
4617
4618                 // The new code splits the queries since the mysql optimizer really has bad problems with subqueries
4619
4620                 // Creating list of parents
4621                 $r = q("select id from item where parent = %d and uid = %d",
4622                         intval($item['id']),
4623                         intval($item['uid'])
4624                 );
4625
4626                 $parentid = "";
4627
4628                 foreach ($r AS $row) {
4629                         if ($parentid != "")
4630                                 $parentid .= ", ";
4631
4632                         $parentid .= $row["id"];
4633                 }
4634
4635                 // Now delete them
4636                 if ($parentid != "") {
4637                         $r = q("DELETE FROM item_id where iid in (%s)", dbesc($parentid));
4638
4639                         $r = q("DELETE FROM sign where iid in (%s)", dbesc($parentid));
4640                 }
4641
4642                 // If it's the parent of a comment thread, kill all the kids
4643
4644                 if($item['uri'] == $item['parent-uri']) {
4645                         $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s', `body` = '' , `title` = ''
4646                                 WHERE `parent-uri` = '%s' AND `uid` = %d ",
4647                                 dbesc(datetime_convert()),
4648                                 dbesc(datetime_convert()),
4649                                 dbesc($item['parent-uri']),
4650                                 intval($item['uid'])
4651                         );
4652                         create_tags_from_item($item['parent-uri'], $item['uid']);
4653                         create_files_from_item($item['parent-uri'], $item['uid']);
4654                         delete_thread_uri($item['parent-uri'], $item['uid']);
4655                         // ignore the result
4656                 }
4657                 else {
4658                         // ensure that last-child is set in case the comment that had it just got wiped.
4659                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
4660                                 dbesc(datetime_convert()),
4661                                 dbesc($item['parent-uri']),
4662                                 intval($item['uid'])
4663                         );
4664                         // who is the last child now?
4665                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d ORDER BY `edited` DESC LIMIT 1",
4666                                 dbesc($item['parent-uri']),
4667                                 intval($item['uid'])
4668                         );
4669                         if(count($r)) {
4670                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d",
4671                                         intval($r[0]['id'])
4672                                 );
4673                         }
4674
4675                         // Add a relayable_retraction signature for Diaspora.
4676                         store_diaspora_retract_sig($item, $a->user, $a->get_baseurl());
4677                 }
4678                 $drop_id = intval($item['id']);
4679
4680                 // send the notification upstream/downstream as the case may be
4681
4682                 proc_run('php',"include/notifier.php","drop","$drop_id");
4683
4684                 if(! $interactive)
4685                         return $owner;
4686                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4687                 //NOTREACHED
4688         }
4689         else {
4690                 if(! $interactive)
4691                         return 0;
4692                 notice( t('Permission denied.') . EOL);
4693                 goaway($a->get_baseurl() . '/' . $_SESSION['return_url']);
4694                 //NOTREACHED
4695         }
4696
4697 }
4698
4699
4700 function first_post_date($uid,$wall = false) {
4701         $r = q("select id, created from item
4702                 where uid = %d and wall = %d and deleted = 0 and visible = 1 AND moderated = 0
4703                 and id = parent
4704                 order by created asc limit 1",
4705                 intval($uid),
4706                 intval($wall ? 1 : 0)
4707         );
4708         if(count($r)) {
4709 //              logger('first_post_date: ' . $r[0]['id'] . ' ' . $r[0]['created'], LOGGER_DATA);
4710                 return substr(datetime_convert('',date_default_timezone_get(),$r[0]['created']),0,10);
4711         }
4712         return false;
4713 }
4714
4715 function posted_dates($uid,$wall) {
4716         $dnow = datetime_convert('',date_default_timezone_get(),'now','Y-m-d');
4717
4718         $dthen = first_post_date($uid,$wall);
4719         if(! $dthen)
4720                 return array();
4721
4722         // Set the start and end date to the beginning of the month
4723         $dnow = substr($dnow,0,8).'01';
4724         $dthen = substr($dthen,0,8).'01';
4725
4726         $ret = array();
4727         // Starting with the current month, get the first and last days of every
4728         // month down to and including the month of the first post
4729         while(substr($dnow, 0, 7) >= substr($dthen, 0, 7)) {
4730                 $dstart = substr($dnow,0,8) . '01';
4731                 $dend = substr($dnow,0,8) . get_dim(intval($dnow),intval(substr($dnow,5)));
4732                 $start_month = datetime_convert('','',$dstart,'Y-m-d');
4733                 $end_month = datetime_convert('','',$dend,'Y-m-d');
4734                 $str = day_translate(datetime_convert('','',$dnow,'F Y'));
4735                 $ret[] = array($str,$end_month,$start_month);
4736                 $dnow = datetime_convert('','',$dnow . ' -1 month', 'Y-m-d');
4737         }
4738         return $ret;
4739 }
4740
4741
4742 function posted_date_widget($url,$uid,$wall) {
4743         $o = '';
4744
4745         if(! feature_enabled($uid,'archives'))
4746                 return $o;
4747
4748         // For former Facebook folks that left because of "timeline"
4749
4750 /*      if($wall && intval(get_pconfig($uid,'system','no_wall_archive_widget')))
4751                 return $o;*/
4752
4753         $ret = posted_dates($uid,$wall);
4754         if(! count($ret))
4755                 return $o;
4756
4757         $o = replace_macros(get_markup_template('posted_date_widget.tpl'),array(
4758                 '$title' => t('Archives'),
4759                 '$size' => ((count($ret) > 6) ? 6 : count($ret)),
4760                 '$url' => $url,
4761                 '$dates' => $ret
4762         ));
4763         return $o;
4764 }
4765
4766 function store_diaspora_retract_sig($item, $user, $baseurl) {
4767         // Note that we can't add a target_author_signature
4768         // if the comment was deleted by a remote user. That should be ok, because if a remote user is deleting
4769         // the comment, that means we're the home of the post, and Diaspora will only
4770         // check the parent_author_signature of retractions that it doesn't have to relay further
4771         //
4772         // I don't think this function gets called for an "unlike," but I'll check anyway
4773
4774         $enabled = intval(get_config('system','diaspora_enabled'));
4775         if(! $enabled) {
4776                 logger('drop_item: diaspora support disabled, not storing retraction signature', LOGGER_DEBUG);
4777                 return;
4778         }
4779
4780         logger('drop_item: storing diaspora retraction signature');
4781
4782         $signed_text = $item['guid'] . ';' . ( ($item['verb'] === ACTIVITY_LIKE) ? 'Like' : 'Comment');
4783
4784         if(local_user() == $item['uid']) {
4785
4786                 $handle = $user['nickname'] . '@' . substr($baseurl, strpos($baseurl,'://') + 3);
4787                 $authorsig = base64_encode(rsa_sign($signed_text,$user['prvkey'],'sha256'));
4788         }
4789         else {
4790                 $r = q("SELECT `nick`, `url` FROM `contact` WHERE `id` = '%d' LIMIT 1",
4791                         $item['contact-id'] // If this function gets called, drop_item() has already checked remote_user() == $item['contact-id']
4792                 );
4793                 if(count($r)) {
4794                         // The below handle only works for NETWORK_DFRN. I think that's ok, because this function
4795                         // only handles DFRN deletes
4796                         $handle_baseurl_start = strpos($r['url'],'://') + 3;
4797                         $handle_baseurl_length = strpos($r['url'],'/profile') - $handle_baseurl_start;
4798                         $handle = $r['nick'] . '@' . substr($r['url'], $handle_baseurl_start, $handle_baseurl_length);
4799                         $authorsig = '';
4800                 }
4801         }
4802
4803         if(isset($handle))
4804                 q("insert into sign (`retract_iid`,`signed_text`,`signature`,`signer`) values (%d,'%s','%s','%s') ",
4805                         intval($item['id']),
4806                         dbesc($signed_text),
4807                         dbesc($authorsig),
4808                         dbesc($handle)
4809                 );
4810
4811         return;
4812 }