include/items.php

   1 <?php
   2
   3 require_once('bbcode.php');
   4 require_once('oembed.php');
   5 require_once('include/salmon.php');
   6
   7 function get_feed_for(&$a, $dfrn_id, $owner_nick, $last_update, $direction = 0) {
   8
   9
  10         // default permissions - anonymous user
  11
  12         if(! strlen($owner_nick))
  13                 killme();
  14
  15         $sql_extra = " AND `allow_cid` = '' AND `allow_gid` = '' AND `deny_cid`  = '' AND `deny_gid`  = '' ";
  16
  17         $r = q("SELECT `contact`.*, `user`.`uid` AS `user_uid`, `user`.`nickname`, `user`.`timezone`
  18                 FROM `contact` LEFT JOIN `user` ON `user`.`uid` = `contact`.`uid`
  19                 WHERE `contact`.`self` = 1 AND `user`.`nickname` = '%s' LIMIT 1",
  20                 dbesc($owner_nick)
  21         );
  22
  23         if(! count($r))
  24                 killme();
  25
  26         $owner = $r[0];
  27         $owner_id = $owner['user_uid'];
  28         $owner_nick = $owner['nickname'];
  29
  30         $birthday = feed_birthday($owner_id,$owner['timezone']);
  31
  32         if(strlen($dfrn_id)) {
  33
  34                 $sql_extra = '';
  35                 switch($direction) {
  36                         case (-1):
  37                                 $sql_extra = sprintf(" AND `issued-id` = '%s' ", dbesc($dfrn_id));
  38                                 $my_id = $dfrn_id;
  39                                 break;
  40                         case 0:
  41                                 $sql_extra = sprintf(" AND `issued-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  42                                 $my_id = '1:' . $dfrn_id;
  43                                 break;
  44                         case 1:
  45                                 $sql_extra = sprintf(" AND `dfrn-id` = '%s' AND `duplex` = 1 ", dbesc($dfrn_id));
  46                                 $my_id = '0:' . $dfrn_id;
  47                                 break;
  48                         default:
  49                                 return false;
  50                                 break; // NOTREACHED
  51                 }
  52
  53                 $r = q("SELECT * FROM `contact` WHERE `blocked` = 0 AND `pending` = 0 AND `contact`.`uid` = %d $sql_extra LIMIT 1",
  54                         intval($owner_id)
  55                 );
  56
  57                 if(! count($r))
  58                         killme();
  59
  60                 $contact = $r[0];
  61                 $groups = init_groups_visitor($contact['id']);
  62
  63                 if(count($groups)) {
  64                         for($x = 0; $x < count($groups); $x ++)
  65                                 $groups[$x] = '<' . intval($groups[$x]) . '>' ;
  66                         $gs = implode('|', $groups);
  67                 }
  68                 else
  69                         $gs = '<<>>' ; // Impossible to match
  70
  71                 $sql_extra = sprintf("
  72                         AND ( `allow_cid` = '' OR     `allow_cid` REGEXP '<%d>' )
  73                         AND ( `deny_cid`  = '' OR NOT `deny_cid`  REGEXP '<%d>' )
  74                         AND ( `allow_gid` = '' OR     `allow_gid` REGEXP '%s' )
  75                         AND ( `deny_gid`  = '' OR NOT `deny_gid`  REGEXP '%s')
  76                 ",
  77                         intval($contact['id']),
  78                         intval($contact['id']),
  79                         dbesc($gs),
  80                         dbesc($gs)
  81                 );
  82         }
  83
  84         if($dfrn_id === '' || $dfrn_id === '*')
  85                 $sort = 'DESC';
  86         else
  87                 $sort = 'ASC';
  88
  89         if(! strlen($last_update))
  90                 $last_update = 'now -30 days';
  91
  92         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
  93
  94         $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
  95                 `contact`.`name`, `contact`.`photo`, `contact`.`url`,
  96                 `contact`.`name-date`, `contact`.`uri-date`, `contact`.`avatar-date`,
  97                 `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
  98                 `contact`.`id` AS `contact-id`, `contact`.`uid` AS `contact-uid`
  99                 FROM `item` LEFT JOIN `contact` ON `contact`.`id` = `item`.`contact-id`
 100                 WHERE `item`.`uid` = %d AND `item`.`visible` = 1 AND `item`.`parent` != 0
 101                 AND `item`.`wall` = 1 AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 102                 AND ( `item`.`edited` > '%s' OR `item`.`changed` > '%s' )
 103                 $sql_extra
 104                 ORDER BY `parent` %s, `created` ASC LIMIT 0, 300",
 105                 intval($owner_id),
 106                 dbesc($check_date),
 107                 dbesc($check_date),
 108                 dbesc($sort)
 109         );
 110
 111         // Will check further below if this actually returned results.
 112         // We will provide an empty feed if that is the case.
 113
 114         $items = $r;
 115
 116         $feed_template = get_markup_template('atom_feed.tpl');
 117
 118         $atom = '';
 119
 120         $hubxml = feed_hublinks();
 121
 122         $salmon = feed_salmonlinks($owner_nick);
 123
 124         $atom .= replace_macros($feed_template, array(
 125                 '$version'      => xmlify(FRIENDIKA_VERSION),
 126                 '$feed_id'      => xmlify($a->get_baseurl() . '/profile/' . $owner_nick),
 127                 '$feed_title'   => xmlify($owner['name']),
 128                 '$feed_updated' => xmlify(datetime_convert('UTC', 'UTC', 'now' , ATOM_TIME)) ,
 129                 '$hub'          => $hubxml,
 130                 '$salmon'       => $salmon,
 131                 '$name'         => xmlify($owner['name']),
 132                 '$profile_page' => xmlify($owner['url']),
 133                 '$photo'        => xmlify($owner['photo']),
 134                 '$thumb'        => xmlify($owner['thumb']),
 135                 '$picdate'      => xmlify(datetime_convert('UTC','UTC',$owner['avatar-date'] . '+00:00' , ATOM_TIME)) ,
 136                 '$uridate'      => xmlify(datetime_convert('UTC','UTC',$owner['uri-date']    . '+00:00' , ATOM_TIME)) ,
 137                 '$namdate'      => xmlify(datetime_convert('UTC','UTC',$owner['name-date']   . '+00:00' , ATOM_TIME)) ,
 138                 '$birthday'     => ((strlen($birthday)) ? '<dfrn:birthday>' . xmlify($birthday) . '</dfrn:birthday>' : '')
 139         ));
 140
 141         call_hooks('atom_feed', $atom);
 142
 143         if(! count($items)) {
 144
 145                 call_hooks('atom_feed_end', $atom);
 146
 147                 $atom .= '</feed>' . "\r\n";
 148                 return $atom;
 149         }
 150
 151         foreach($items as $item) {
 152
 153                 // public feeds get html, our own nodes use bbcode
 154
 155                 if($dfrn_id === '') {
 156                         $type = 'html';
 157                 }
 158                 else {
 159                         $type = 'text';
 160                 }
 161
 162                 $atom .= atom_entry($item,$type,null,$owner,true);
 163         }
 164
 165         call_hooks('atom_feed_end', $atom);
 166
 167         $atom .= '</feed>' . "\r\n";
 168
 169         return $atom;
 170 }
 171
 172
 173 function construct_verb($item) {
 174         if($item['verb'])
 175                 return $item['verb'];
 176         return ACTIVITY_POST;
 177 }
 178
 179 function construct_activity_object($item) {
 180
 181         if($item['object']) {
 182                 $o = '<as:object>' . "\r\n";
 183                 $r = parse_xml_string($item['object']);
 184                 if($r->type)
 185                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 186                 if($r->id)
 187                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 188                 if($r->title)
 189                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 190                 if($r->link) {
 191                         if(substr($r->link,0,1) === '<')
 192                                 $o .= $r->link;
 193                         else
 194                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 195                 }
 196                 if($r->content)
 197                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 198                 $o .= '</as:object>' . "\r\n";
 199                 return $o;
 200         }
 201
 202         return '';
 203 }
 204
 205 function construct_activity_target($item) {
 206
 207         if($item['target']) {
 208                 $o = '<as:target>' . "\r\n";
 209                 $r = parse_xml_string($item['target']);
 210                 if($r->type)
 211                         $o .= '<as:object-type>' . xmlify($r->type) . '</as:object-type>' . "\r\n";
 212                 if($r->id)
 213                         $o .= '<id>' . xmlify($r->id) . '</id>' . "\r\n";
 214                 if($r->title)
 215                         $o .= '<title>' . xmlify($r->title) . '</title>' . "\r\n";
 216                 if($r->link) {
 217                         if(substr($r->link,0,1) === '<')
 218                                 $o .= $r->link;
 219                         else
 220                                 $o .= '<link rel="alternate" type="text/html" href="' . xmlify($r->link) . '" />' . "\r\n";
 221                 }
 222                 if($r->content)
 223                         $o .= '<content type="html" >' . xmlify(bbcode($r->content)) . '</content>' . "\r\n";
 224                 $o .= '</as:target>' . "\r\n";
 225                 return $o;
 226         }
 227
 228         return '';
 229 }
 230
 231
 232
 233
 234 function get_atom_elements($feed,$item) {
 235
 236         require_once('library/HTMLPurifier.auto.php');
 237         require_once('include/html2bbcode.php');
 238
 239         $best_photo = array();
 240
 241         $res = array();
 242
 243         $author = $item->get_author();
 244         if($author) {
 245                 $res['author-name'] = unxmlify($author->get_name());
 246                 $res['author-link'] = unxmlify($author->get_link());
 247         }
 248         else {
 249                 $res['author-name'] = unxmlify($feed->get_title());
 250                 $res['author-link'] = unxmlify($feed->get_permalink());
 251         }
 252         $res['uri'] = unxmlify($item->get_id());
 253         $res['title'] = unxmlify($item->get_title());
 254         $res['body'] = unxmlify($item->get_content());
 255         $res['plink'] = unxmlify($item->get_link(0));
 256
 257         // look for a photo. We should check media size and find the best one,
 258         // but for now let's just find any author photo
 259
 260         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 261
 262         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 263                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 264                 foreach($base as $link) {
 265                         if(! $res['author-avatar']) {
 266                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 267                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 268                         }
 269                 }
 270         }
 271
 272         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 273
 274         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 275                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 276                 if($base && count($base)) {
 277                         foreach($base as $link) {
 278                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 279                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 280                                 if(! $res['author-avatar']) {
 281                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 282                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 283                                 }
 284                         }
 285                 }
 286         }
 287
 288         // No photo/profile-link on the item - look at the feed level
 289
 290         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 291                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 292                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 293                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 294                         foreach($base as $link) {
 295                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 296                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 297                                 if(! $res['author-avatar']) {
 298                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 299                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 300                                 }
 301                         }
 302                 }
 303
 304                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 305
 306                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 307                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 308
 309                         if($base && count($base)) {
 310                                 foreach($base as $link) {
 311                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 312                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 313                                         if(! (x($res,'author-avatar'))) {
 314                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 315                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 316                                         }
 317                                 }
 318                         }
 319                 }
 320         }
 321
 322
 323         /**
 324          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 325          */
 326
 327         $have_real_body = false;
 328
 329         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 330         if($rawenv) {
 331                 $have_real_body = true;
 332                 $res['body'] = $rawenv[0]['data'];
 333                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 334                 // make sure nobody is trying to sneak some html tags by us
 335                 $res['body'] = notags(base64url_decode($res['body']));
 336         }
 337
 338         $maxlen = get_max_import_size();
 339         if($maxlen && (strlen($res['body']) > $maxlen))
 340                 $res['body'] = substr($res['body'],0, $maxlen);
 341
 342         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 343         // the content type. Our own network only emits text normally, though it might have been converted to
 344         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 345         // have to assume it is all html and needs to be purified.
 346
 347         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 348         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 349         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 350         // html.
 351
 352         if((strpos($res['body'],'<') !== false) || (strpos($res['body'],'>') !== false)) {
 353
 354                 $res['body'] = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 355                         '[youtube]$1[/youtube]', $res['body']);
 356
 357                 $res['body'] = oembed_html2bbcode($res['body']);
 358
 359                 $config = HTMLPurifier_Config::createDefault();
 360                 $config->set('Cache.DefinitionImpl', null);
 361
 362                 // we shouldn't need a whitelist, because the bbcode converter
 363                 // will strip out any unsupported tags.
 364                 // $config->set('HTML.Allowed', 'p,b,a[href],i');
 365
 366                 $purifier = new HTMLPurifier($config);
 367                 $res['body'] = $purifier->purify($res['body']);
 368
 369                 $res['body'] = html2bbcode($res['body']);
 370         }
 371
 372         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 373         if($allow && $allow[0]['data'] == 1)
 374                 $res['last-child'] = 1;
 375         else
 376                 $res['last-child'] = 0;
 377
 378         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 379         if($private && $private[0]['data'] == 1)
 380                 $res['private'] = 1;
 381         else
 382                 $res['private'] = 0;
 383
 384
 385         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 386         if($rawlocation)
 387                 $res['location'] = unxmlify($rawlocation[0]['data']);
 388
 389
 390         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 391         if($rawcreated)
 392                 $res['created'] = unxmlify($rawcreated[0]['data']);
 393
 394
 395         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 396         if($rawedited)
 397                 $res['edited'] = unxmlify($rawedited[0]['data']);
 398
 399         if((x($res,'edited')) && (! (x($res,'created'))))
 400                 $res['created'] = $res['edited'];
 401
 402         if(! $res['created'])
 403                 $res['created'] = $item->get_date('c');
 404
 405         if(! $res['edited'])
 406                 $res['edited'] = $item->get_date('c');
 407
 408
 409         // Disallow time travelling posts
 410
 411         $d1 = strtotime($res['created']);
 412         $d2 = strtotime($res['edited']);
 413         $d3 = strtotime('now');
 414
 415         if($d1 > $d3)
 416                 $res['created'] = datetime_convert();
 417         if($d2 > $d3)
 418                 $res['edited'] = datetime_convert();
 419
 420         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 421         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 422                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 423         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 424                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 425         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 426                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 427         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 428                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 429
 430         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 431                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 432
 433                 foreach($base as $link) {
 434                         if(! $res['owner-avatar']) {
 435                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 436                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 437                         }
 438                 }
 439         }
 440
 441         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 442         if($rawgeo)
 443                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 444
 445
 446         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 447
 448         // select between supported verbs
 449
 450         if($rawverb) {
 451                 $res['verb'] = unxmlify($rawverb[0]['data']);
 452         }
 453
 454         // translate OStatus unfollow to activity streams if it happened to get selected
 455
 456         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 457                 $res['verb'] = ACTIVITY_UNFOLLOW;
 458
 459
 460         $cats = $item->get_categories();
 461         if($cats) {
 462                 $tag_arr = array();
 463                 foreach($cats as $cat) {
 464                         $term = $cat->get_term();
 465                         if(! $term)
 466                                 $term = $cat->get_label();
 467                         $scheme = $cat->get_scheme();
 468                         if($scheme && $term && stristr($scheme,'X-DFRN:'))
 469                                 $tag_arr[] = substr($scheme,7,1) . '[url=' . unxmlify(substr($scheme,9)) . ']' . unxmlify($term) . '[/url]';
 470                         elseif($term)
 471                                 $tag_arr[] = notags(trim($term));
 472                 }
 473                 $res['tag'] =  implode(',', $tag_arr);
 474         }
 475
 476         $attach = $item->get_enclosures();
 477         if($attach) {
 478                 $att_arr = array();
 479                 foreach($attach as $att) {
 480                         $len   = intval($att->get_length());
 481                         $link  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_link()))));
 482                         $title = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_title()))));
 483                         $type  = str_replace(array(',','"'),array('%2D','%22'),notags(trim(unxmlify($att->get_type()))));
 484                         if(strpos($type,';'))
 485                                 $type = substr($type,0,strpos($type,';'));
 486                         if((! $link) || (strpos($link,'http') !== 0))
 487                                 continue;
 488
 489                         if(! $title)
 490                                 $title = ' ';
 491                         if(! $type)
 492                                 $type = 'application/octet-stream';
 493
 494                         $att_arr[] = '[attach]href="' . $link . '" size="' . $len . '" type="' . $type . '" title="' . $title . '"[/attach]';
 495                 }
 496                 $res['attach'] = implode(',', $att_arr);
 497         }
 498
 499         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 500
 501         if($rawobj) {
 502                 $res['object'] = '<object>' . "\n";
 503                 if($rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 504                         $res['object-type'] = $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 505                         $res['object'] .= '<type>' . $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 506                 }
 507                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 508                         $res['object'] .= '<id>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 509                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 510                         $res['object'] .= '<link>' . encode_rel_links($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 511                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 512                         $res['object'] .= '<title>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 513                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 514                         $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 515                         if(! $body)
 516                                 $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 517                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 518                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 519                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 520
 521                                 $body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 522                                         '[youtube]$1[/youtube]', $body);
 523
 524                                 $config = HTMLPurifier_Config::createDefault();
 525                                 $config->set('Cache.DefinitionImpl', null);
 526
 527                                 $purifier = new HTMLPurifier($config);
 528                                 $body = $purifier->purify($body);
 529                                 $body = html2bbcode($body);
 530                         }
 531
 532                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 533                 }
 534
 535                 $res['object'] .= '</object>' . "\n";
 536         }
 537
 538         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 539
 540         if($rawobj) {
 541                 $res['target'] = '<target>' . "\n";
 542                 if($rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 543                         $res['target'] .= '<type>' . $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 544                 }
 545                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 546                         $res['target'] .= '<id>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 547
 548                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 549                         $res['target'] .= '<link>' . encode_rel_links($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 550                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 551                         $res['target'] .= '<title>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 552                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 553                         $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 554                         if(! $body)
 555                                 $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 556                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 557                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 558                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 559
 560                                 $body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 561                                         '[youtube]$1[/youtube]', $body);
 562
 563                                 $config = HTMLPurifier_Config::createDefault();
 564                                 $config->set('Cache.DefinitionImpl', null);
 565
 566                                 $purifier = new HTMLPurifier($config);
 567                                 $body = $purifier->purify($body);
 568                                 $body = html2bbcode($body);
 569                         }
 570
 571                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 572                 }
 573
 574                 $res['target'] .= '</target>' . "\n";
 575         }
 576
 577         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 578
 579         call_hooks('parse_atom', $arr);
 580
 581         return $res;
 582 }
 583
 584 function encode_rel_links($links) {
 585         $o = '';
 586         if(! ((is_array($links)) && (count($links))))
 587                 return $o;
 588         foreach($links as $link) {
 589                 $o .= '<link ';
 590                 if($link['attribs']['']['rel'])
 591                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
 592                 if($link['attribs']['']['type'])
 593                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
 594                 if($link['attribs']['']['href'])
 595                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
 596                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
 597                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
 598                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
 599                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
 600                 $o .= ' />' . "\n" ;
 601         }
 602         return xmlify($o);
 603 }
 604
 605 function item_store($arr,$force_parent = false) {
 606
 607         if($arr['gravity'])
 608                 $arr['gravity'] = intval($arr['gravity']);
 609         elseif($arr['parent-uri'] == $arr['uri'])
 610                 $arr['gravity'] = 0;
 611         elseif(activity_match($arr['verb'],ACTIVITY_POST))
 612                 $arr['gravity'] = 6;
 613         else
 614                 $arr['gravity'] = 6;   // extensible catchall
 615
 616         if(! x($arr,'type'))
 617                 $arr['type']      = 'remote';
 618
 619         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
 620
 621         if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
 622                 $arr['body'] = strip_tags($arr['body']);
 623
 624
 625         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
 626         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
 627         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
 628         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
 629         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
 630         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
 631         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
 632         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
 633         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
 634         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
 635         $arr['changed']       = datetime_convert();
 636         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
 637         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
 638         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
 639         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
 640         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
 641         $arr['deleted']       = 0;
 642         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
 643         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
 644         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
 645         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
 646         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
 647         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
 648         $arr['plink']         = ((x($arr,'plink'))         ? notags(trim($arr['plink']))         : '');
 649         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
 650         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
 651         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
 652         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
 653         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
 654         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
 655         $arr['tag']           = ((x($arr,'tag'))           ? notags(trim($arr['tag']))           : '');
 656         $arr['attach']        = ((x($arr,'attach'))        ? notags(trim($arr['attach']))        : '');
 657
 658         if($arr['parent-uri'] === $arr['uri']) {
 659                 $parent_id = 0;
 660                 $allow_cid = $arr['allow_cid'];
 661                 $allow_gid = $arr['allow_gid'];
 662                 $deny_cid  = $arr['deny_cid'];
 663                 $deny_gid  = $arr['deny_gid'];
 664         }
 665         else {
 666
 667                 // find the parent and snarf the item id and ACL's
 668                 // and anything else we need to inherit
 669
 670                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 671                         dbesc($arr['parent-uri']),
 672                         intval($arr['uid'])
 673                 );
 674
 675                 if(count($r)) {
 676
 677                         // is the new message multi-level threaded?
 678                         // even though we don't support it now, preserve the info
 679                         // and re-attach to the conversation parent.
 680
 681                         if($r[0]['uri'] != $r[0]['parent-uri']) {
 682                                 $arr['thr-parent'] = $arr['parent-uri'];
 683                                 $arr['parent-uri'] = $r[0]['parent-uri'];
 684                         }
 685
 686                         $parent_id      = $r[0]['id'];
 687                         $parent_deleted = $r[0]['deleted'];
 688                         $allow_cid      = $r[0]['allow_cid'];
 689                         $allow_gid      = $r[0]['allow_gid'];
 690                         $deny_cid       = $r[0]['deny_cid'];
 691                         $deny_gid       = $r[0]['deny_gid'];
 692                         $arr['wall']    = $r[0]['wall'];
 693                 }
 694                 else {
 695
 696                         // Allow one to see reply tweets from status.net even when
 697                         // we don't have or can't see the original post.
 698
 699                         if($force_parent) {
 700                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
 701                                 $parent_id = 0;
 702                                 $arr['thr-parent'] = $arr['parent-uri'];
 703                                 $arr['parent-uri'] = $arr['uri'];
 704                                 $arr['gravity'] = 0;
 705                         }
 706                         else {
 707                                 logger('item_store: item parent was not found - ignoring item');
 708                                 return 0;
 709                         }
 710                 }
 711         }
 712
 713         call_hooks('post_remote',$arr);
 714
 715         dbesc_array($arr);
 716
 717         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
 718
 719         $r = dbq("INSERT INTO `item` (`"
 720                         . implode("`, `", array_keys($arr))
 721                         . "`) VALUES ('"
 722                         . implode("', '", array_values($arr))
 723                         . "')" );
 724
 725         // find the item we just created
 726
 727         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 728                 $arr['uri'],           // already dbesc'd
 729                 intval($arr['uid'])
 730         );
 731         if(count($r)) {
 732                 $current_post = $r[0]['id'];
 733                 logger('item_store: created item ' . $current_post);
 734         }
 735         else {
 736                 logger('item_store: could not locate created item');
 737                 return 0;
 738         }
 739
 740         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
 741                 $parent_id = $current_post;
 742
 743         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
 744                 $private = 1;
 745         else
 746                 $private = $arr['private'];
 747
 748         // Set parent id - and also make sure to inherit the parent's ACL's.
 749
 750         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
 751                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d LIMIT 1",
 752                 intval($parent_id),
 753                 dbesc($allow_cid),
 754                 dbesc($allow_gid),
 755                 dbesc($deny_cid),
 756                 dbesc($deny_gid),
 757                 intval($private),
 758                 intval($parent_deleted),
 759                 intval($current_post)
 760         );
 761
 762         /**
 763          * If this is now the last-child, force all _other_ children of this parent to *not* be last-child
 764          */
 765
 766         if($arr['last-child']) {
 767                 $r = q("UPDATE `item` SET `last-child` = 0 WHERE `parent-uri` = '%s' AND `uid` = %d AND `id` != %d",
 768                         dbesc($arr['uri']),
 769                         intval($arr['uid']),
 770                         intval($current_post)
 771                 );
 772         }
 773
 774         return $current_post;
 775 }
 776
 777 function get_item_contact($item,$contacts) {
 778         if(! count($contacts) || (! is_array($item)))
 779                 return false;
 780         foreach($contacts as $contact) {
 781                 if($contact['id'] == $item['contact-id']) {
 782                         return $contact;
 783                         break; // NOTREACHED
 784                 }
 785         }
 786         return false;
 787 }
 788
 789
 790 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
 791
 792         $a = get_app();
 793
 794         if((! strlen($contact['issued-id'])) && (! $contact['duplex']) && (! ($owner['page-flags'] == PAGE_COMMUNITY)))
 795                 return 3;
 796
 797         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 798
 799         if($contact['duplex'] && $contact['dfrn-id'])
 800                 $idtosend = '0:' . $orig_id;
 801         if($contact['duplex'] && $contact['issued-id'])
 802                 $idtosend = '1:' . $orig_id;
 803
 804         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 805
 806         $rino_enable = get_config('system','rino_encrypt');
 807
 808         if(! $rino_enable)
 809                 $rino = 0;
 810
 811         $url = $contact['notify'] . '&dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
 812
 813         logger('dfrn_deliver: ' . $url);
 814
 815         $xml = fetch_url($url);
 816
 817         $curl_stat = $a->get_curl_code();
 818         if(! $curl_stat)
 819                 return(-1); // timed out
 820
 821         logger('dfrn_deliver: ' . $xml);
 822
 823         if(! $xml)
 824                 return 3;
 825
 826         if(strpos($xml,'<?xml') === false) {
 827                 logger('dfrn_deliver: no valid XML returned');
 828                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
 829                 return 3;
 830         }
 831
 832         $res = parse_xml_string($xml);
 833
 834         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
 835                 return (($res->status) ? $res->status : 3);
 836
 837         $postvars     = array();
 838         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 839         $challenge    = hex2bin((string) $res->challenge);
 840         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
 841         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
 842
 843         $final_dfrn_id = '';
 844
 845
 846         if(($contact['duplex'] && strlen($contact['pubkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 847                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
 848                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 849         }
 850         else {
 851                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
 852                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
 853         }
 854
 855         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 856
 857         if(strpos($final_dfrn_id,':') == 1)
 858                 $final_dfrn_id = substr($final_dfrn_id,2);
 859
 860         if($final_dfrn_id != $orig_id) {
 861                 logger('dfrn_deliver: wrong dfrn_id.');
 862                 // did not decode properly - cannot trust this site
 863                 return 3;
 864         }
 865
 866         $postvars['dfrn_id']      = $idtosend;
 867         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 868         if($dissolve)
 869                 $postvars['dissolve'] = '1';
 870
 871
 872         if((($contact['rel']) && ($contact['rel'] != REL_FAN) && (! $contact['blocked'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 873                 $postvars['data'] = $atom;
 874                 $postvars['perm'] = 'rw';
 875         }
 876         else {
 877                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
 878                 $postvars['perm'] = 'r';
 879         }
 880
 881         if($rino && $rino_allowed && (! $dissolve)) {
 882                 $key = substr(random_string(),0,16);
 883                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
 884                 $postvars['data'] = $data;
 885                 logger('rino: sent key = ' . $key);
 886
 887
 888                 if($dfrn_version >= 2.1) {
 889                         if(($contact['duplex'] && strlen($contact['pubkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 890                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
 891                         }
 892                         else {
 893                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
 894                         }
 895                 }
 896                 else {
 897                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 898                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
 899                         }
 900                         else {
 901                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
 902                         }
 903                 }
 904
 905                 logger('md5 rawkey ' . md5($postvars['key']));
 906
 907                 $postvars['key'] = bin2hex($postvars['key']);
 908         }
 909
 910         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
 911
 912         $xml = post_url($contact['notify'],$postvars);
 913
 914         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
 915
 916         $curl_stat = $a->get_curl_code();
 917         if((! $curl_stat) || (! strlen($xml)))
 918                 return(-1); // timed out
 919
 920         if(strpos($xml,'<?xml') === false) {
 921                 logger('dfrn_deliver: phase 2: no valid XML returned');
 922                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
 923                 return 3;
 924         }
 925
 926         $res = parse_xml_string($xml);
 927
 928         return $res->status;
 929 }
 930
 931
 932 /**
 933  *
 934  * consume_feed - process atom feed and update anything/everything we might need to update
 935  *
 936  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
 937  *
 938  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
 939  *             It is this person's stuff that is going to be updated.
 940  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
 941  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
 942  *             have a contact record.
 943  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
 944  *        might not) try and subscribe to it.
 945  *
 946  */
 947
 948 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0, $secure_feed = false) {
 949
 950         require_once('simplepie/simplepie.inc');
 951
 952         $feed = new SimplePie();
 953         $feed->set_raw_data($xml);
 954         if($datedir)
 955                 $feed->enable_order_by_date(true);
 956         else
 957                 $feed->enable_order_by_date(false);
 958         $feed->init();
 959
 960         if($feed->error())
 961                 logger('consume_feed: Error parsing XML: ' . $feed->error());
 962
 963         $permalink = $feed->get_permalink();
 964
 965         // Check at the feed level for updated contact name and/or photo
 966
 967         $name_updated  = '';
 968         $new_name = '';
 969         $photo_timestamp = '';
 970         $photo_url = '';
 971         $birthday = '';
 972
 973         $hubs = $feed->get_links('hub');
 974
 975         if(count($hubs))
 976                 $hub = implode(',', $hubs);
 977
 978         $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
 979         if($rawtags) {
 980                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
 981                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
 982                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
 983                         $new_name = $elems['name'][0]['data'];
 984                 }
 985                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
 986                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
 987                         $photo_url = $elems['link'][0]['attribs']['']['href'];
 988                 }
 989
 990                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
 991                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
 992                 }
 993         }
 994
 995         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
 996                 logger('consume_feed: Updating photo for ' . $contact['name']);
 997                 require_once("Photo.php");
 998                 $photo_failure = false;
 999                 $have_photo = false;
1000
1001                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
1002                         intval($contact['id']),
1003                         intval($contact['uid'])
1004                 );
1005                 if(count($r)) {
1006                         $resource_id = $r[0]['resource-id'];
1007                         $have_photo = true;
1008                 }
1009                 else {
1010                         $resource_id = photo_new_resource();
1011                 }
1012
1013                 $img_str = fetch_url($photo_url,true);
1014                 $img = new Photo($img_str);
1015                 if($img->is_valid()) {
1016                         if($have_photo) {
1017                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
1018                                         dbesc($resource_id),
1019                                         intval($contact['id']),
1020                                         intval($contact['uid'])
1021                                 );
1022                         }
1023
1024                         $img->scaleImageSquare(175);
1025
1026                         $hash = $resource_id;
1027                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
1028
1029                         $img->scaleImage(80);
1030                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
1031
1032                         $img->scaleImage(48);
1033                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 6);
1034
1035                         $a = get_app();
1036
1037                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
1038                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
1039                                 dbesc(datetime_convert()),
1040                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.jpg'),
1041                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.jpg'),
1042                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.jpg'),
1043                                 intval($contact['uid']),
1044                                 intval($contact['id'])
1045                         );
1046                 }
1047         }
1048
1049         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
1050                 q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1051                         dbesc(notags(trim($new_name))),
1052                         dbesc(datetime_convert()),
1053                         intval($contact['uid']),
1054                         intval($contact['id'])
1055                 );
1056         }
1057
1058         if(strlen($birthday)) {
1059                 if(substr($birthday,0,4) != $contact['bdyear']) {
1060                         logger('consume_feed: updating birthday: ' . $birthday);
1061
1062                         /**
1063                          *
1064                          * Add new birthday event for this person
1065                          *
1066                          * $bdtext is just a readable placeholder in case the event is shared
1067                          * with others. We will replace it during presentation to our $importer
1068                          * to contain a sparkle link and perhaps a photo.
1069                          *
1070                          */
1071
1072                         $bdtext = t('Birthday:') . ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ;
1073
1074
1075                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`desc`,`type`)
1076                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s' ) ",
1077                                 intval($contact['uid']),
1078                                 intval($contact['id']),
1079                                 dbesc(datetime_convert()),
1080                                 dbesc(datetime_convert()),
1081                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
1082                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
1083                                 dbesc($bdtext),
1084                                 dbesc('birthday')
1085                         );
1086
1087
1088                         // update bdyear
1089
1090                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1091                                 dbesc(substr($birthday,0,4)),
1092                                 intval($contact['uid']),
1093                                 intval($contact['id'])
1094                         );
1095
1096                         // This function is called twice without reloading the contact
1097                         // Make sure we only create one event. This is why &$contact
1098                         // is a reference var in this function
1099
1100                         $contact['bdyear'] = substr($birthday,0,4);
1101                 }
1102
1103         }
1104
1105
1106         // process any deleted entries
1107
1108         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
1109         if(is_array($del_entries) && count($del_entries)) {
1110                 foreach($del_entries as $dentry) {
1111                         $deleted = false;
1112                         if(isset($dentry['attribs']['']['ref'])) {
1113                                 $uri = $dentry['attribs']['']['ref'];
1114                                 $deleted = true;
1115                                 if(isset($dentry['attribs']['']['when'])) {
1116                                         $when = $dentry['attribs']['']['when'];
1117                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
1118                                 }
1119                                 else
1120                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
1121                         }
1122                         if($deleted && is_array($contact)) {
1123                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `contact-id` = %d LIMIT 1",
1124                                         dbesc($uri),
1125                                         intval($importer['uid']),
1126                                         intval($contact['id'])
1127                                 );
1128                                 if(count($r)) {
1129                                         $item = $r[0];
1130
1131                                         if(! $item['deleted'])
1132                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
1133
1134                                         if($item['uri'] == $item['parent-uri']) {
1135                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1136                                                         `body` = '', `title` = ''
1137                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
1138                                                         dbesc($when),
1139                                                         dbesc(datetime_convert()),
1140                                                         dbesc($item['uri']),
1141                                                         intval($importer['uid'])
1142                                                 );
1143                                         }
1144                                         else {
1145                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1146                                                         `body` = '', `title` = ''
1147                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1148                                                         dbesc($when),
1149                                                         dbesc(datetime_convert()),
1150                                                         dbesc($uri),
1151                                                         intval($importer['uid'])
1152                                                 );
1153                                                 if($item['last-child']) {
1154                                                         // ensure that last-child is set in case the comment that had it just got wiped.
1155                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
1156                                                                 dbesc(datetime_convert()),
1157                                                                 dbesc($item['parent-uri']),
1158                                                                 intval($item['uid'])
1159                                                         );
1160                                                         // who is the last child now?
1161                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
1162                                                                 ORDER BY `created` DESC LIMIT 1",
1163                                                                         dbesc($item['parent-uri']),
1164                                                                         intval($importer['uid'])
1165                                                         );
1166                                                         if(count($r)) {
1167                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
1168                                                                         intval($r[0]['id'])
1169                                                                 );
1170                                                         }
1171                                                 }
1172                                         }
1173                                 }
1174                         }
1175                 }
1176         }
1177
1178         // Now process the feed
1179
1180         if($feed->get_item_quantity()) {
1181
1182                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
1183
1184         // in inverse date order
1185                 if ($datedir)
1186                         $items = array_reverse($feed->get_items());
1187                 else
1188                         $items = $feed->get_items();
1189
1190
1191                 foreach($items as $item) {
1192
1193                         $is_reply = false;
1194                         $item_id = $item->get_id();
1195                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
1196                         if(isset($rawthread[0]['attribs']['']['ref'])) {
1197                                 $is_reply = true;
1198                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
1199                         }
1200
1201                         if(($is_reply) && is_array($contact)) {
1202
1203                                 // Have we seen it? If not, import it.
1204
1205                                 $item_id  = $item->get_id();
1206                                 $datarray = get_atom_elements($feed,$item);
1207
1208                                 if(! x($datarray,'author-name'))
1209                                         $datarray['author-name'] = $contact['name'];
1210                                 if(! x($datarray,'author-link'))
1211                                         $datarray['author-link'] = $contact['url'];
1212                                 if(! x($datarray,'author-avatar'))
1213                                         $datarray['author-avatar'] = $contact['thumb'];
1214
1215                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1216                                         dbesc($item_id),
1217                                         intval($importer['uid'])
1218                                 );
1219
1220                                 // Update content if 'updated' changes
1221
1222                                 if(count($r)) {
1223                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
1224                                                 $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1225                                                         dbesc($datarray['body']),
1226                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
1227                                                         dbesc($item_id),
1228                                                         intval($importer['uid'])
1229                                                 );
1230                                         }
1231
1232                                         // update last-child if it changes
1233
1234                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1235                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
1236                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1237                                                         dbesc(datetime_convert()),
1238                                                         dbesc($parent_uri),
1239                                                         intval($importer['uid'])
1240                                                 );
1241                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1242                                                         intval($allow[0]['data']),
1243                                                         dbesc(datetime_convert()),
1244                                                         dbesc($item_id),
1245                                                         intval($importer['uid'])
1246                                                 );
1247                                         }
1248                                         continue;
1249                                 }
1250
1251                                 $force_parent = false;
1252                                 if($contact['network'] === 'stat') {
1253                                         $force_parent = true;
1254                                         if(strlen($datarray['title']))
1255                                                 unset($datarray['title']);
1256                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1257                                                 dbesc(datetime_convert()),
1258                                                 dbesc($parent_uri),
1259                                                 intval($importer['uid'])
1260                                         );
1261                                         $datarray['last-child'] = 1;
1262                                 }
1263
1264                                 if(($contact['network'] === 'feed') || (! strlen($contact['notify']))) {
1265                                         // one way feed - no remote comment ability
1266                                         $datarray['last-child'] = 0;
1267                                 }
1268                                 $datarray['parent-uri'] = $parent_uri;
1269                                 $datarray['uid'] = $importer['uid'];
1270                                 $datarray['contact-id'] = $contact['id'];
1271                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
1272                                         $datarray['type'] = 'activity';
1273                                         $datarray['gravity'] = GRAVITY_LIKE;
1274                                 }
1275
1276                                 $r = item_store($datarray,$force_parent);
1277                                 continue;
1278                         }
1279
1280                         else {
1281
1282                                 // Head post of a conversation. Have we seen it? If not, import it.
1283
1284                                 $item_id  = $item->get_id();
1285
1286                                 $datarray = get_atom_elements($feed,$item);
1287
1288                                 if(is_array($contact)) {
1289                                         if(! x($datarray,'author-name'))
1290                                                 $datarray['author-name'] = $contact['name'];
1291                                         if(! x($datarray,'author-link'))
1292                                                 $datarray['author-link'] = $contact['url'];
1293                                         if(! x($datarray,'author-avatar'))
1294                                                 $datarray['author-avatar'] = $contact['thumb'];
1295                                 }
1296
1297                                 $r = q("SELECT `uid`, `last-child`, `edited`, `body` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1298                                         dbesc($item_id),
1299                                         intval($importer['uid'])
1300                                 );
1301
1302                                 // Update content if 'updated' changes
1303
1304                                 if(count($r)) {
1305                                         if((x($datarray,'edited') !== false) && (datetime_convert('UTC','UTC',$datarray['edited']) !== $r[0]['edited'])) {
1306                                                 $r = q("UPDATE `item` SET `body` = '%s', `edited` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1307                                                         dbesc($datarray['body']),
1308                                                         dbesc(datetime_convert('UTC','UTC',$datarray['edited'])),
1309                                                         dbesc($item_id),
1310                                                         intval($importer['uid'])
1311                                                 );
1312                                         }
1313
1314                                         // update last-child if it changes
1315
1316                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1317                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
1318                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1319                                                         intval($allow[0]['data']),
1320                                                         dbesc(datetime_convert()),
1321                                                         dbesc($item_id),
1322                                                         intval($importer['uid'])
1323                                                 );
1324                                         }
1325                                         continue;
1326                                 }
1327
1328                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
1329                                         logger('consume-feed: New follower');
1330                                         new_follower($importer,$contact,$datarray,$item);
1331                                         return;
1332                                 }
1333                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
1334                                         lose_follower($importer,$contact,$datarray,$item);
1335                                         return;
1336                                 }
1337                                 if(! is_array($contact))
1338                                         return;
1339
1340                                 if($contact['network'] === 'stat' || stristr($permalink,'twitter.com')) {
1341                                         if(strlen($datarray['title']))
1342                                                 unset($datarray['title']);
1343                                         $datarray['last-child'] = 1;
1344                                 }
1345
1346                                 if(($contact['network'] === 'feed') || (! strlen($contact['notify']))) {
1347                                         // one way feed - no remote comment ability
1348                                         $datarray['last-child'] = 0;
1349                                 }
1350
1351                                 $datarray['parent-uri'] = $item_id;
1352                                 $datarray['uid'] = $importer['uid'];
1353                                 $datarray['contact-id'] = $contact['id'];
1354                                 $r = item_store($datarray);
1355                                 continue;
1356
1357                         }
1358                 }
1359         }
1360 }
1361
1362 function new_follower($importer,$contact,$datarray,$item) {
1363         $url = notags(trim($datarray['author-link']));
1364         $name = notags(trim($datarray['author-name']));
1365         $photo = notags(trim($datarray['author-avatar']));
1366
1367         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
1368         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
1369                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
1370
1371         if(is_array($contact)) {
1372                 if($contact['network'] == 'stat' && $contact['rel'] == REL_FAN) {
1373                         $r = q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
1374                                 intval(REL_BUD),
1375                                 intval($contact['id']),
1376                                 intval($importer['uid'])
1377                         );
1378                 }
1379
1380                 // send email notification to owner?
1381         }
1382         else {
1383
1384                 // create contact record - set to readonly
1385
1386                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `name`, `nick`, `photo`, `network`, `rel`,
1387                         `blocked`, `readonly`, `pending`, `writable` )
1388                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 1, 1, 1 ) ",
1389                         intval($importer['uid']),
1390                         dbesc(datetime_convert()),
1391                         dbesc($url),
1392                         dbesc($name),
1393                         dbesc($nick),
1394                         dbesc($photo),
1395                         dbesc('stat'),
1396                         intval(REL_VIP)
1397                 );
1398                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 AND `rel` = %d LIMIT 1",
1399                                 intval($importer['uid']),
1400                                 dbesc($url),
1401                                 intval(REL_VIP)
1402                 );
1403                 if(count($r))
1404                                 $contact_record = $r[0];
1405
1406                 // create notification
1407                 $hash = random_string();
1408
1409                 if(is_array($contact_record)) {
1410                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
1411                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
1412                                 intval($importer['uid']),
1413                                 intval($contact_record['id']),
1414                                 dbesc($hash),
1415                                 dbesc(datetime_convert())
1416                         );
1417                 }
1418                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
1419                         intval($importer['uid'])
1420                 );
1421                 $a = get_app();
1422                 if(count($r)) {
1423                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) && ($r[0]['page-flags'] == PAGE_NORMAL)) {
1424                                 $email_tpl = get_intltext_template('follow_notify_eml.tpl');
1425                                 $email = replace_macros($email_tpl, array(
1426                                         '$requestor' => ((strlen($name)) ? $name : t('[Name Withheld]')),
1427                                         '$url' => $url,
1428                                         '$myname' => $r[0]['username'],
1429                                         '$siteurl' => $a->get_baseurl(),
1430                                         '$sitename' => $a->config['sitename']
1431                                 ));
1432                                 $res = mail($r[0]['email'],
1433                                         t("You have a new follower at ") . $a->config['sitename'],
1434                                         $email,
1435                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] . "\n"
1436                                         . 'Content-type: text/plain; charset=UTF-8' . "\n"
1437                                         . 'Content-transfer-encoding: 8bit' );
1438
1439                         }
1440                 }
1441         }
1442 }
1443
1444 function lose_follower($importer,$contact,$datarray,$item) {
1445
1446         if(($contact['rel'] == REL_BUD) || ($contact['rel'] == REL_FAN)) {
1447                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
1448                         intval(REL_FAN),
1449                         intval($contact['id'])
1450                 );
1451         }
1452         else {
1453                 contact_remove($contact['id']);
1454         }
1455 }
1456
1457
1458 function subscribe_to_hub($url,$importer,$contact) {
1459
1460         if(is_array($importer)) {
1461                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
1462                         intval($importer['uid'])
1463                 );
1464         }
1465         if(! count($r))
1466                 return;
1467
1468         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
1469
1470         // Use a single verify token, even if multiple hubs
1471
1472         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
1473
1474         $params= 'hub.mode=subscribe&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
1475
1476         logger('subscribe_to_hub: subscribing ' . $contact['name'] . ' to hub ' . $url . ' with verifier ' . $verify_token);
1477
1478         if(! strlen($contact['hub-verify'])) {
1479                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
1480                         dbesc($verify_token),
1481                         intval($contact['id'])
1482                 );
1483         }
1484
1485         post_url($url,$params);
1486         return;
1487
1488 }
1489
1490
1491 function atom_author($tag,$name,$uri,$h,$w,$photo) {
1492         $o = '';
1493         if(! $tag)
1494                 return $o;
1495         $name = xmlify($name);
1496         $uri = xmlify($uri);
1497         $h = intval($h);
1498         $w = intval($w);
1499         $photo = xmlify($photo);
1500
1501
1502         $o .= "<$tag>\r\n";
1503         $o .= "<name>$name</name>\r\n";
1504         $o .= "<uri>$uri</uri>\r\n";
1505         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
1506         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
1507
1508         call_hooks('atom_author', $o);
1509
1510         $o .= "</$tag>\r\n";
1511         return $o;
1512 }
1513
1514 function atom_entry($item,$type,$author,$owner,$comment = false) {
1515
1516         $a = get_app();
1517
1518         if($item['deleted'])
1519                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
1520
1521
1522         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
1523                 $body = fix_private_photos($item['body'],$owner['uid']);
1524         else
1525                 $body = $item['body'];
1526
1527
1528         $o = "\r\n\r\n<entry>\r\n";
1529
1530         if(is_array($author))
1531                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
1532         else
1533                 $o .= atom_author('author',(($item['author-name']) ? $item['author-name'] : $item['name']),(($item['author-link']) ? $item['author-link'] : $item['url']),80,80,(($item['author-avatar']) ? $item['author-avatar'] : $item['thumb']));
1534         if(strlen($item['owner-name']))
1535                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
1536
1537         if($item['parent'] != $item['id'])
1538                 $o .= '<thr:in-reply-to ref="' . xmlify($item['parent-uri']) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
1539
1540         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
1541         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
1542         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
1543         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
1544         $o .= '<dfrn:env>' . base64url_encode($body, true) . '</dfrn:env>' . "\r\n";
1545         $o .= '<content type="' . $type . '" >' . xmlify(($type === 'html') ? bbcode($body) : $body) . '</content>' . "\r\n";
1546         $o .= '<link rel="alternate" type="text/html" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
1547         if($comment)
1548                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
1549
1550         if($item['location']) {
1551                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
1552                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
1553         }
1554
1555         if($item['coord'])
1556                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
1557
1558         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
1559                 $o .= '<dfrn:private>1</dfrn:private>' . "\r\n";
1560
1561         $verb = construct_verb($item);
1562         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
1563         $actobj = construct_activity_object($item);
1564         if(strlen($actobj))
1565                 $o .= $actobj;
1566         $actarg = construct_activity_target($item);
1567         if(strlen($actarg))
1568                 $o .= $actarg;
1569
1570         $tags = item_getfeedtags($item);
1571         if(count($tags)) {
1572                 foreach($tags as $t) {
1573                         $o .= '<category scheme="X-DFRN:' . xmlify($t[0]) . ':' . xmlify($t[1]) . '" term="' . xmlify($t[2]) . '" />' . "\r\n";
1574                 }
1575         }
1576
1577         $o .= item_getfeedattach($item);
1578
1579         $mentioned = get_mentions($item);
1580         if($mentioned)
1581                 $o .= $mentioned;
1582
1583         call_hooks('atom_entry', $o);
1584
1585         $o .= '</entry>' . "\r\n";
1586
1587         return $o;
1588 }
1589
1590 function fix_private_photos($s,$uid) {
1591         $a = get_app();
1592         logger('fix_private_photos');
1593
1594         if(preg_match("/\[img\](.+?)\[\/img\]/is",$s,$matches)) {
1595                 $image = $matches[1];
1596                 logger('fix_private_photos: found photo ' . $image);
1597                 if(stristr($image ,$a->get_baseurl() . '/photo/')) {
1598                         $i = basename($image);
1599                         $i = str_replace('.jpg','',$i);
1600                         $x = strpos($i,'-');
1601                         if($x) {
1602                                 $res = substr($i,$x+1);
1603                                 $i = substr($i,0,$x);
1604                                 $r = q("SELECT * FROM `photo` WHERE `resource-id` = '%s' AND `scale` = %d AND `uid` = %d",
1605                                         dbesc($i),
1606                                         intval($res),
1607                                         intval($uid)
1608                                 );
1609                                 if(count($r)) {
1610                                         logger('replacing photo');
1611                                         $s = str_replace($image, 'data:image/jpg;base64,' . base64_encode($r[0]['data']), $s);
1612                                 }
1613                         }
1614                         logger('fix_private_photos: replaced: ' . $s, LOGGER_DATA);
1615                 }
1616         }
1617         return($s);
1618 }
1619
1620
1621
1622 function item_getfeedtags($item) {
1623         $ret = array();
1624         $matches = false;
1625         $cnt = preg_match_all('|\#\[url\=(.+?)\](.+?)\[\/url\]|',$item['tag'],$matches);
1626         if($cnt) {
1627                 for($x = 0; $x < count($matches); $x ++) {
1628                         if($matches[1][$x])
1629                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
1630                 }
1631         }
1632         $matches = false;
1633         $cnt = preg_match_all('|\@\[url\=(.+?)\](.+?)\[\/url\]|',$item['tag'],$matches);
1634         if($cnt) {
1635                 for($x = 0; $x < count($matches); $x ++) {
1636                         if($matches[1][$x])
1637                                 $ret[] = array('#',$matches[1][$x], $matches[2][$x]);
1638                 }
1639         }
1640         return $ret;
1641 }
1642
1643 function item_getfeedattach($item) {
1644         $ret = '';
1645         $arr = explode(',',$item['attach']);
1646         if(count($arr)) {
1647                 foreach($arr as $r) {
1648                         $matches = false;
1649                         $cnt = preg_match('|\[attach\]href=\"(.+?)\" size=\"(.+?)\" type=\"(.+?)\" title=\"(.+?)\"\[\/attach\]|',$r,$matches);
1650                         if($cnt) {
1651                                 $ret .= '<link rel="enclosure" href="' . xmlify($matches[1]) . '" type="' . xmlify($matches[3]) . '" ';
1652                                 if(intval($matches[2]))
1653                                         $ret .= 'size="' . intval($matches[2]) . '" ';
1654                                 if($matches[4] !== ' ')
1655                                         $ret .= 'title="' . xmlify(trim($matches[4])) . '" ';
1656                                 $ret .= ' />' . "\r\n";
1657                         }
1658                 }
1659         }
1660         return $ret;
1661 }
1662
1663
1664
1665 function item_expire($uid,$days) {
1666
1667         if((! $uid) || (! $days))
1668                 return;
1669
1670         $r = q("SELECT * FROM `item`
1671                 WHERE `uid` = %d
1672                 AND `created` < UTC_TIMESTAMP() - INTERVAL %d DAY
1673                 AND `id` = `parent`
1674                 AND `deleted` = 0",
1675                 intval($uid),
1676                 intval($days)
1677         );
1678
1679         if(! count($r))
1680                 return;
1681
1682         logger('expire: # items=' . count($r) );
1683
1684         foreach($r as $item) {
1685
1686                 // Only expire posts, not photos and photo comments
1687
1688                 if(strlen($item['resource-id']))
1689                         continue;
1690
1691                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s' WHERE `id` = %d LIMIT 1",
1692                         dbesc(datetime_convert()),
1693                         dbesc(datetime_convert()),
1694                         intval($item['id'])
1695                 );
1696
1697                 // kill the kids
1698
1699                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
1700                         dbesc(datetime_convert()),
1701                         dbesc(datetime_convert()),
1702                         dbesc($item['parent-uri']),
1703                         intval($item['uid'])
1704                 );
1705
1706         }
1707
1708         proc_run('php',"include/notifier.php","expire","$uid");
1709
1710 }