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 = load_view_file('view/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                 $r = @simplexml_load_string($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                 $r = @simplexml_load_string($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         $res['author-name'] = unxmlify($author->get_name());
 245         $res['author-link'] = unxmlify($author->get_link());
 246         $res['uri'] = unxmlify($item->get_id());
 247         $res['title'] = unxmlify($item->get_title());
 248         $res['body'] = unxmlify($item->get_content());
 249
 250
 251         // look for a photo. We should check media size and find the best one,
 252         // but for now let's just find any author photo
 253
 254         $rawauthor = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 255
 256         if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 257                 $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 258                 foreach($base as $link) {
 259                         if(! $res['author-avatar']) {
 260                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 261                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 262                         }
 263                 }
 264         }
 265
 266         $rawactor = $item->get_item_tags(NAMESPACE_ACTIVITY, 'actor');
 267
 268         if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 269                 $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 270                 if($base && count($base)) {
 271                         foreach($base as $link) {
 272                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 273                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 274                                 if(! $res['author-avatar']) {
 275                                         if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 276                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 277                                 }
 278                         }
 279                 }
 280         }
 281
 282         // No photo/profile-link on the item - look at the feed level
 283
 284         if((! (x($res,'author-link'))) || (! (x($res,'author-avatar')))) {
 285                 $rawauthor = $feed->get_feed_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'author');
 286                 if($rawauthor && $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 287                         $base = $rawauthor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 288                         foreach($base as $link) {
 289                                 if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 290                                         $res['author-link'] = unxmlify($link['attribs']['']['href']);
 291                                 if(! $res['author-avatar']) {
 292                                         if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 293                                                 $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 294                                 }
 295                         }
 296                 }
 297
 298                 $rawactor = $feed->get_feed_tags(NAMESPACE_ACTIVITY, 'subject');
 299
 300                 if($rawactor && activity_match($rawactor[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'],ACTIVITY_OBJ_PERSON)) {
 301                         $base = $rawactor[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 302
 303                         if($base && count($base)) {
 304                                 foreach($base as $link) {
 305                                         if($link['attribs']['']['rel'] === 'alternate' && (! $res['author-link']))
 306                                                 $res['author-link'] = unxmlify($link['attribs']['']['href']);
 307                                         if(! (x($res,'author-avatar'))) {
 308                                                 if($link['attribs']['']['rel'] === 'avatar' || $link['attribs']['']['rel'] === 'photo')
 309                                                         $res['author-avatar'] = unxmlify($link['attribs']['']['href']);
 310                                         }
 311                                 }
 312                         }
 313                 }
 314         }
 315
 316
 317         /**
 318          * If there's a copy of the body content which is guaranteed to have survived mangling in transit, use it.
 319          */
 320
 321         $have_real_body = false;
 322
 323         $rawenv = $item->get_item_tags(NAMESPACE_DFRN, 'env');
 324         if($rawenv) {
 325                 $have_real_body = true;
 326                 $res['body'] = $rawenv[0]['data'];
 327                 $res['body'] = str_replace(array(' ',"\t","\r","\n"), array('','','',''),$res['body']);
 328                 // make sure nobody is trying to sneak some html tags by us
 329                 $res['body'] = notags(base64url_decode($res['body']));
 330         }
 331
 332         $maxlen = get_max_import_size();
 333         if($maxlen && (strlen($res['body']) > $maxlen))
 334                 $res['body'] = substr($res['body'],0, $maxlen);
 335
 336         // It isn't certain at this point whether our content is plaintext or html and we'd be foolish to trust
 337         // the content type. Our own network only emits text normally, though it might have been converted to
 338         // html if we used a pubsubhubbub transport. But if we see even one html tag in our text, we will
 339         // have to assume it is all html and needs to be purified.
 340
 341         // It doesn't matter all that much security wise - because before this content is used anywhere, we are
 342         // going to escape any tags we find regardless, but this lets us import a limited subset of html from
 343         // the wild, by sanitising it and converting supported tags to bbcode before we rip out any remaining
 344         // html.
 345
 346
 347         if((strpos($res['body'],'<') !== false) || (strpos($res['body'],'>') !== false)) {
 348
 349                 $res['body'] = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 350                         '[youtube]$1[/youtube]', $res['body']);
 351
 352                 $res['body'] = oembed_html2bbcode($res['body']);
 353
 354                 $config = HTMLPurifier_Config::createDefault();
 355                 $config->set('Cache.DefinitionImpl', null);
 356
 357                 // we shouldn't need a whitelist, because the bbcode converter
 358                 // will strip out any unsupported tags.
 359                 // $config->set('HTML.Allowed', 'p,b,a[href],i');
 360
 361                 $purifier = new HTMLPurifier($config);
 362                 $res['body'] = $purifier->purify($res['body']);
 363
 364                 $res['body'] = html2bbcode($res['body']);
 365         }
 366
 367         $allow = $item->get_item_tags(NAMESPACE_DFRN,'comment-allow');
 368         if($allow && $allow[0]['data'] == 1)
 369                 $res['last-child'] = 1;
 370         else
 371                 $res['last-child'] = 0;
 372
 373         $private = $item->get_item_tags(NAMESPACE_DFRN,'private');
 374         if($private && $private[0]['data'] == 1)
 375                 $res['private'] = 1;
 376         else
 377                 $res['private'] = 0;
 378
 379
 380         $rawlocation = $item->get_item_tags(NAMESPACE_DFRN, 'location');
 381         if($rawlocation)
 382                 $res['location'] = unxmlify($rawlocation[0]['data']);
 383
 384
 385         $rawcreated = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'published');
 386         if($rawcreated)
 387                 $res['created'] = unxmlify($rawcreated[0]['data']);
 388
 389
 390         $rawedited = $item->get_item_tags(SIMPLEPIE_NAMESPACE_ATOM_10,'updated');
 391         if($rawedited)
 392                 $res['edited'] = unxmlify($rawedited[0]['data']);
 393
 394         if((x($res,'edited')) && (! (x($res,'created'))))
 395                 $res['created'] = $res['edited'];
 396
 397         if(! $res['created'])
 398                 $res['created'] = $item->get_date('c');
 399
 400         if(! $res['edited'])
 401                 $res['edited'] = $item->get_date('c');
 402
 403
 404         $rawowner = $item->get_item_tags(NAMESPACE_DFRN, 'owner');
 405         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data'])
 406                 $res['owner-name'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['name'][0]['data']);
 407         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data'])
 408                 $res['owner-name'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['name'][0]['data']);
 409         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data'])
 410                 $res['owner-link'] = unxmlify($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['uri'][0]['data']);
 411         elseif($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data'])
 412                 $res['owner-link'] = unxmlify($rawowner[0]['child'][NAMESPACE_DFRN]['uri'][0]['data']);
 413
 414         if($rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) {
 415                 $base = $rawowner[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'];
 416
 417                 foreach($base as $link) {
 418                         if(! $res['owner-avatar']) {
 419                                 if($link['attribs']['']['rel'] === 'photo' || $link['attribs']['']['rel'] === 'avatar')
 420                                         $res['owner-avatar'] = unxmlify($link['attribs']['']['href']);
 421                         }
 422                 }
 423         }
 424
 425         $rawgeo = $item->get_item_tags(NAMESPACE_GEORSS,'point');
 426         if($rawgeo)
 427                 $res['coord'] = unxmlify($rawgeo[0]['data']);
 428
 429
 430         $rawverb = $item->get_item_tags(NAMESPACE_ACTIVITY, 'verb');
 431
 432         // select between supported verbs
 433
 434         if($rawverb) {
 435                 $res['verb'] = unxmlify($rawverb[0]['data']);
 436         }
 437
 438         // translate OStatus unfollow to activity streams if it happened to get selected
 439
 440         if((x($res,'verb')) && ($res['verb'] === 'http://ostatus.org/schema/1.0/unfollow'))
 441                 $res['verb'] = ACTIVITY_UNFOLLOW;
 442
 443
 444
 445         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'object');
 446
 447         if($rawobj) {
 448                 $res['object'] = '<object>' . "\n";
 449                 if($rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 450                         $res['object-type'] = $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'];
 451                         $res['object'] .= '<type>' . $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 452                 }
 453                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 454                         $res['object'] .= '<id>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 455                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 456                         $res['object'] .= '<link>' . encode_rel_links($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 457                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 458                         $res['object'] .= '<title>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 459                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 460                         $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 461                         if(! $body)
 462                                 $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 463                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 464                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 465                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 466
 467                                 $body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 468                                         '[youtube]$1[/youtube]', $body);
 469
 470                                 $config = HTMLPurifier_Config::createDefault();
 471                                 $config->set('Cache.DefinitionImpl', null);
 472
 473                                 $purifier = new HTMLPurifier($config);
 474                                 $body = $purifier->purify($body);
 475                                 $body = html2bbcode($body);
 476                         }
 477
 478                         $res['object'] .= '<content>' . $body . '</content>' . "\n";
 479                 }
 480
 481                 $res['object'] .= '</object>' . "\n";
 482         }
 483
 484         $rawobj = $item->get_item_tags(NAMESPACE_ACTIVITY, 'target');
 485
 486         if($rawobj) {
 487                 $res['target'] = '<target>' . "\n";
 488                 if($rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data']) {
 489                         $res['target'] .= '<type>' . $rawobj[0]['child'][NAMESPACE_ACTIVITY]['object-type'][0]['data'] . '</type>' . "\n";
 490                 }
 491                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'])
 492                         $res['target'] .= '<id>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['id'][0]['data'] . '</id>' . "\n";
 493
 494                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link'])
 495                         $res['target'] .= '<link>' . encode_rel_links($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['link']) . '</link>' . "\n";
 496                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'])
 497                         $res['target'] .= '<title>' . $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['title'][0]['data'] . '</title>' . "\n";
 498                 if($rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data']) {
 499                         $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['content'][0]['data'];
 500                         if(! $body)
 501                                 $body = $rawobj[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10]['summary'][0]['data'];
 502                         // preserve a copy of the original body content in case we later need to parse out any microformat information, e.g. events
 503                         $res['object'] .= '<orig>' . xmlify($body) . '</orig>' . "\n";
 504                         if((strpos($body,'<') !== false) || (strpos($body,'>') !== false)) {
 505
 506                                 $body = preg_replace('#<object[^>]+>.+?' . 'http://www.youtube.com/((?:v|cp)/[A-Za-z0-9\-_=]+).+?</object>#s',
 507                                         '[youtube]$1[/youtube]', $body);
 508
 509                                 $config = HTMLPurifier_Config::createDefault();
 510                                 $config->set('Cache.DefinitionImpl', null);
 511
 512                                 $purifier = new HTMLPurifier($config);
 513                                 $body = $purifier->purify($body);
 514                                 $body = html2bbcode($body);
 515                         }
 516
 517                         $res['target'] .= '<content>' . $body . '</content>' . "\n";
 518                 }
 519
 520                 $res['target'] .= '</target>' . "\n";
 521         }
 522
 523         $arr = array('feed' => $feed, 'item' => $item, 'result' => $res);
 524
 525         call_hooks('parse_atom', $arr);
 526
 527         return $res;
 528 }
 529
 530 function encode_rel_links($links) {
 531         $o = '';
 532         if(! ((is_array($links)) && (count($links))))
 533                 return $o;
 534         foreach($links as $link) {
 535                 $o .= '<link ';
 536                 if($link['attribs']['']['rel'])
 537                         $o .= 'rel="' . $link['attribs']['']['rel'] . '" ';
 538                 if($link['attribs']['']['type'])
 539                         $o .= 'type="' . $link['attribs']['']['type'] . '" ';
 540                 if($link['attribs']['']['href'])
 541                         $o .= 'href="' . $link['attribs']['']['href'] . '" ';
 542                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['width'])
 543                         $o .= 'media:width="' . $link['attribs'][NAMESPACE_MEDIA]['width'] . '" ';
 544                 if( (x($link['attribs'],NAMESPACE_MEDIA)) && $link['attribs'][NAMESPACE_MEDIA]['height'])
 545                         $o .= 'media:height="' . $link['attribs'][NAMESPACE_MEDIA]['height'] . '" ';
 546                 $o .= ' />' . "\n" ;
 547         }
 548         return xmlify($o);
 549 }
 550
 551 function item_store($arr,$force_parent = false) {
 552
 553         if($arr['gravity'])
 554                 $arr['gravity'] = intval($arr['gravity']);
 555         elseif($arr['parent-uri'] == $arr['uri'])
 556                 $arr['gravity'] = 0;
 557         elseif(activity_match($arr['verb'],ACTIVITY_POST))
 558                 $arr['gravity'] = 6;
 559         else
 560                 $arr['gravity'] = 6;   // extensible catchall
 561
 562         if(! x($arr,'type'))
 563                 $arr['type']      = 'remote';
 564
 565         // Shouldn't happen but we want to make absolutely sure it doesn't leak from a plugin.
 566
 567         if((strpos($arr['body'],'<') !== false) || (strpos($arr['body'],'>') !== false))
 568                 $arr['body'] = strip_tags($arr['body']);
 569
 570
 571         $arr['wall']          = ((x($arr,'wall'))          ? intval($arr['wall'])                : 0);
 572         $arr['uri']           = ((x($arr,'uri'))           ? notags(trim($arr['uri']))           : random_string());
 573         $arr['author-name']   = ((x($arr,'author-name'))   ? notags(trim($arr['author-name']))   : '');
 574         $arr['author-link']   = ((x($arr,'author-link'))   ? notags(trim($arr['author-link']))   : '');
 575         $arr['author-avatar'] = ((x($arr,'author-avatar')) ? notags(trim($arr['author-avatar'])) : '');
 576         $arr['owner-name']    = ((x($arr,'owner-name'))    ? notags(trim($arr['owner-name']))    : '');
 577         $arr['owner-link']    = ((x($arr,'owner-link'))    ? notags(trim($arr['owner-link']))    : '');
 578         $arr['owner-avatar']  = ((x($arr,'owner-avatar'))  ? notags(trim($arr['owner-avatar']))  : '');
 579         $arr['created']       = ((x($arr,'created') !== false) ? datetime_convert('UTC','UTC',$arr['created']) : datetime_convert());
 580         $arr['edited']        = ((x($arr,'edited')  !== false) ? datetime_convert('UTC','UTC',$arr['edited'])  : datetime_convert());
 581         $arr['changed']       = datetime_convert();
 582         $arr['title']         = ((x($arr,'title'))         ? notags(trim($arr['title']))         : '');
 583         $arr['location']      = ((x($arr,'location'))      ? notags(trim($arr['location']))      : '');
 584         $arr['coord']         = ((x($arr,'coord'))         ? notags(trim($arr['coord']))         : '');
 585         $arr['last-child']    = ((x($arr,'last-child'))    ? intval($arr['last-child'])          : 0 );
 586         $arr['visible']       = ((x($arr,'visible') !== false) ? intval($arr['visible'])         : 1 );
 587         $arr['deleted']       = 0;
 588         $arr['parent-uri']    = ((x($arr,'parent-uri'))    ? notags(trim($arr['parent-uri']))    : '');
 589         $arr['verb']          = ((x($arr,'verb'))          ? notags(trim($arr['verb']))          : '');
 590         $arr['object-type']   = ((x($arr,'object-type'))   ? notags(trim($arr['object-type']))   : '');
 591         $arr['object']        = ((x($arr,'object'))        ? trim($arr['object'])                : '');
 592         $arr['target-type']   = ((x($arr,'target-type'))   ? notags(trim($arr['target-type']))   : '');
 593         $arr['target']        = ((x($arr,'target'))        ? trim($arr['target'])                : '');
 594         $arr['allow_cid']     = ((x($arr,'allow_cid'))     ? trim($arr['allow_cid'])             : '');
 595         $arr['allow_gid']     = ((x($arr,'allow_gid'))     ? trim($arr['allow_gid'])             : '');
 596         $arr['deny_cid']      = ((x($arr,'deny_cid'))      ? trim($arr['deny_cid'])              : '');
 597         $arr['deny_gid']      = ((x($arr,'deny_gid'))      ? trim($arr['deny_gid'])              : '');
 598         $arr['private']       = ((x($arr,'private'))       ? intval($arr['private'])             : 0 );
 599         $arr['body']          = ((x($arr,'body'))          ? trim($arr['body'])                  : '');
 600
 601         if($arr['parent-uri'] === $arr['uri']) {
 602                 $parent_id = 0;
 603                 $allow_cid = $arr['allow_cid'];
 604                 $allow_gid = $arr['allow_gid'];
 605                 $deny_cid  = $arr['deny_cid'];
 606                 $deny_gid  = $arr['deny_gid'];
 607         }
 608         else {
 609
 610                 // find the parent and snarf the item id and ACL's
 611
 612                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 613                         dbesc($arr['parent-uri']),
 614                         intval($arr['uid'])
 615                 );
 616
 617                 if(count($r)) {
 618
 619                         // is the new message multi-level threaded?
 620                         // even though we don't support it now, preserve the info
 621                         // and re-attach to the conversation parent.
 622
 623                         if($r[0]['uri'] != $r[0]['parent-uri']) {
 624                                 $arr['thr-parent'] = $arr['parent-uri'];
 625                                 $arr['parent-uri'] = $r[0]['parent-uri'];
 626                         }
 627
 628                         $parent_id      = $r[0]['id'];
 629                         $parent_deleted = $r[0]['deleted'];
 630                         $allow_cid      = $r[0]['allow_cid'];
 631                         $allow_gid      = $r[0]['allow_gid'];
 632                         $deny_cid       = $r[0]['deny_cid'];
 633                         $deny_gid       = $r[0]['deny_gid'];
 634                 }
 635                 else {
 636
 637                         // Allow one to see reply tweets from status.net even when
 638                         // we don't have or can't see the original post.
 639
 640                         if($force_parent) {
 641                                 logger('item_store: $force_parent=true, reply converted to top-level post.');
 642                                 $parent_id = 0;
 643                                 $arr['thr-parent'] = $arr['parent-uri'];
 644                                 $arr['parent-uri'] = $arr['uri'];
 645                         }
 646                         else {
 647                                 logger('item_store: item parent was not found - ignoring item');
 648                                 return 0;
 649                         }
 650                 }
 651         }
 652
 653         call_hooks('post_remote',$arr);
 654
 655         dbesc_array($arr);
 656
 657         logger('item_store: ' . print_r($arr,true), LOGGER_DATA);
 658
 659         $r = dbq("INSERT INTO `item` (`"
 660                         . implode("`, `", array_keys($arr))
 661                         . "`) VALUES ('"
 662                         . implode("', '", array_values($arr))
 663                         . "')" );
 664
 665         // find the item we just created
 666
 667         $r = q("SELECT `id` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
 668                 $arr['uri'],           // already dbesc'd
 669                 intval($arr['uid'])
 670         );
 671         if(count($r)) {
 672                 $current_post = $r[0]['id'];
 673                 logger('item_store: created item ' . $current_post);
 674         }
 675         else {
 676                 logger('item_store: could not locate created item');
 677                 return 0;
 678         }
 679
 680         if((! $parent_id) || ($arr['parent-uri'] === $arr['uri']))
 681                 $parent_id = $current_post;
 682
 683         if(strlen($allow_cid) || strlen($allow_gid) || strlen($deny_cid) || strlen($deny_gid))
 684                 $private = 1;
 685         else
 686                 $private = $arr['private'];
 687
 688         // Set parent id - and also make sure to inherit the parent's ACL's.
 689
 690         $r = q("UPDATE `item` SET `parent` = %d, `allow_cid` = '%s', `allow_gid` = '%s',
 691                 `deny_cid` = '%s', `deny_gid` = '%s', `private` = %d, `deleted` = %d WHERE `id` = %d LIMIT 1",
 692                 intval($parent_id),
 693                 dbesc($allow_cid),
 694                 dbesc($allow_gid),
 695                 dbesc($deny_cid),
 696                 dbesc($deny_gid),
 697                 intval($private),
 698                 intval($parent_deleted),
 699                 intval($current_post)
 700         );
 701
 702         return $current_post;
 703 }
 704
 705 function get_item_contact($item,$contacts) {
 706         if(! count($contacts) || (! is_array($item)))
 707                 return false;
 708         foreach($contacts as $contact) {
 709                 if($contact['id'] == $item['contact-id']) {
 710                         return $contact;
 711                         break; // NOTREACHED
 712                 }
 713         }
 714         return false;
 715 }
 716
 717
 718 function dfrn_deliver($owner,$contact,$atom, $dissolve = false) {
 719
 720         $a = get_app();
 721
 722         if((! strlen($contact['issued-id'])) && (! $contact['duplex']) && (! ($owner['page-flags'] == PAGE_COMMUNITY)))
 723                 return 3;
 724
 725         $idtosend = $orig_id = (($contact['dfrn-id']) ? $contact['dfrn-id'] : $contact['issued-id']);
 726
 727         if($contact['duplex'] && $contact['dfrn-id'])
 728                 $idtosend = '0:' . $orig_id;
 729         if($contact['duplex'] && $contact['issued-id'])
 730                 $idtosend = '1:' . $orig_id;
 731
 732         $rino = ((function_exists('mcrypt_encrypt')) ? 1 : 0);
 733
 734         $rino_enable = get_config('system','rino_encrypt');
 735
 736         if(! $rino_enable)
 737                 $rino = 0;
 738
 739         $url = $contact['notify'] . '?dfrn_id=' . $idtosend . '&dfrn_version=' . DFRN_PROTOCOL_VERSION . (($rino) ? '&rino=1' : '');
 740
 741         logger('dfrn_deliver: ' . $url);
 742
 743         $xml = fetch_url($url);
 744
 745         $curl_stat = $a->get_curl_code();
 746         if(! $curl_stat)
 747                 return(-1); // timed out
 748
 749         logger('dfrn_deliver: ' . $xml);
 750
 751         if(! $xml)
 752                 return 3;
 753
 754         if(strpos($xml,'<?xml') === false) {
 755                 logger('dfrn_deliver: no valid XML returned');
 756                 logger('dfrn_deliver: returned XML: ' . $xml, LOGGER_DATA);
 757                 return 3;
 758         }
 759
 760         $res = simplexml_load_string($xml);
 761
 762         if((intval($res->status) != 0) || (! strlen($res->challenge)) || (! strlen($res->dfrn_id)))
 763                 return (($res->status) ? $res->status : 3);
 764
 765         $postvars     = array();
 766         $sent_dfrn_id = hex2bin((string) $res->dfrn_id);
 767         $challenge    = hex2bin((string) $res->challenge);
 768         $dfrn_version = (float) (($res->dfrn_version) ? $res->dfrn_version : 2.0);
 769         $rino_allowed = ((intval($res->rino) === 1) ? 1 : 0);
 770
 771         $final_dfrn_id = '';
 772
 773
 774         if(($contact['duplex'] && strlen($contact['pubkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 775                 openssl_public_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['pubkey']);
 776                 openssl_public_decrypt($challenge,$postvars['challenge'],$contact['pubkey']);
 777         }
 778         else {
 779                 openssl_private_decrypt($sent_dfrn_id,$final_dfrn_id,$contact['prvkey']);
 780                 openssl_private_decrypt($challenge,$postvars['challenge'],$contact['prvkey']);
 781         }
 782
 783         $final_dfrn_id = substr($final_dfrn_id, 0, strpos($final_dfrn_id, '.'));
 784
 785         if(strpos($final_dfrn_id,':') == 1)
 786                 $final_dfrn_id = substr($final_dfrn_id,2);
 787
 788         if($final_dfrn_id != $orig_id) {
 789                 logger('dfrn_deliver: wrong dfrn_id.');
 790                 // did not decode properly - cannot trust this site
 791                 return 3;
 792         }
 793
 794         $postvars['dfrn_id']      = $idtosend;
 795         $postvars['dfrn_version'] = DFRN_PROTOCOL_VERSION;
 796         if($dissolve)
 797                 $postvars['dissolve'] = '1';
 798
 799         if(($contact['rel']) && ($contact['rel'] != REL_FAN) && (! $contact['blocked']) && (! $contact['readonly'])) {
 800                 $postvars['data'] = $atom;
 801         }
 802         elseif($owner['page-flags'] == PAGE_COMMUNITY) {
 803                 $postvars['data'] = $atom;
 804         }
 805         else {
 806                 $postvars['data'] = str_replace('<dfrn:comment-allow>1','<dfrn:comment-allow>0',$atom);
 807         }
 808
 809         if($rino && $rino_allowed && (! $dissolve)) {
 810                 $key = substr(random_string(),0,16);
 811                 $data = bin2hex(aes_encrypt($postvars['data'],$key));
 812                 $postvars['data'] = $data;
 813                 logger('rino: sent key = ' . $key);
 814
 815
 816                 if($dfrn_version >= 2.1) {
 817                         if(($contact['duplex'] && strlen($contact['pubkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 818                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
 819                         }
 820                         else {
 821                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
 822                         }
 823                 }
 824                 else {
 825                         if(($contact['duplex'] && strlen($contact['prvkey'])) || ($owner['page-flags'] == PAGE_COMMUNITY)) {
 826                                 openssl_private_encrypt($key,$postvars['key'],$contact['prvkey']);
 827                         }
 828                         else {
 829                                 openssl_public_encrypt($key,$postvars['key'],$contact['pubkey']);
 830                         }
 831                 }
 832
 833                 logger('md5 rawkey ' . md5($postvars['key']));
 834
 835                 $postvars['key'] = bin2hex($postvars['key']);
 836         }
 837
 838         logger('dfrn_deliver: ' . "SENDING: " . print_r($postvars,true), LOGGER_DATA);
 839
 840         $xml = post_url($contact['notify'],$postvars);
 841
 842         logger('dfrn_deliver: ' . "RECEIVED: " . $xml, LOGGER_DATA);
 843
 844         $curl_stat = $a->get_curl_code();
 845         if((! $curl_stat) || (! strlen($xml)))
 846                 return(-1); // timed out
 847
 848
 849         if(strpos($xml,'<?xml') === false) {
 850                 logger('dfrn_deliver: phase 2: no valid XML returned');
 851                 logger('dfrn_deliver: phase 2: returned XML: ' . $xml, LOGGER_DATA);
 852                 return 3;
 853         }
 854
 855         $res = simplexml_load_string($xml);
 856
 857         return $res->status;
 858
 859 }
 860
 861
 862 /**
 863  *
 864  * consume_feed - process atom feed and update anything/everything we might need to update
 865  *
 866  * $xml = the (atom) feed to consume - RSS isn't as fully supported but may work for simple feeds.
 867  *
 868  * $importer = the contact_record (joined to user_record) of the local user who owns this relationship.
 869  *             It is this person's stuff that is going to be updated.
 870  * $contact =  the person who is sending us stuff. If not set, we MAY be processing a "follow" activity
 871  *             from an external network and MAY create an appropriate contact record. Otherwise, we MUST
 872  *             have a contact record.
 873  * $hub = should we find a hub declation in the feed, pass it back to our calling process, who might (or
 874  *        might not) try and subscribe to it.
 875  *
 876  */
 877
 878 function consume_feed($xml,$importer,&$contact, &$hub, $datedir = 0) {
 879
 880         require_once('simplepie/simplepie.inc');
 881
 882         $feed = new SimplePie();
 883         $feed->set_raw_data($xml);
 884         if($datedir)
 885                 $feed->enable_order_by_date(true);
 886         else
 887                 $feed->enable_order_by_date(false);
 888         $feed->init();
 889
 890         if($feed->error())
 891                 logger('consume_feed: Error parsing XML: ' . $feed->error());
 892
 893
 894         // Check at the feed level for updated contact name and/or photo
 895
 896         $name_updated  = '';
 897         $new_name = '';
 898         $photo_timestamp = '';
 899         $photo_url = '';
 900         $birthday = '';
 901
 902         $hubs = $feed->get_links('hub');
 903
 904         if(count($hubs))
 905                 $hub = implode(',', $hubs);
 906
 907         $rawtags = $feed->get_feed_tags( SIMPLEPIE_NAMESPACE_ATOM_10, 'author');
 908         if($rawtags) {
 909                 $elems = $rawtags[0]['child'][SIMPLEPIE_NAMESPACE_ATOM_10];
 910                 if($elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated']) {
 911                         $name_updated = $elems['name'][0]['attribs'][NAMESPACE_DFRN]['updated'];
 912                         $new_name = $elems['name'][0]['data'];
 913                 }
 914                 if((x($elems,'link')) && ($elems['link'][0]['attribs']['']['rel'] === 'photo') && ($elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated'])) {
 915                         $photo_timestamp = datetime_convert('UTC','UTC',$elems['link'][0]['attribs'][NAMESPACE_DFRN]['updated']);
 916                         $photo_url = $elems['link'][0]['attribs']['']['href'];
 917                 }
 918
 919                 if((x($rawtags[0]['child'], NAMESPACE_DFRN)) && (x($rawtags[0]['child'][NAMESPACE_DFRN],'birthday'))) {
 920                         $birthday = datetime_convert('UTC','UTC', $rawtags[0]['child'][NAMESPACE_DFRN]['birthday'][0]['data']);
 921                 }
 922         }
 923
 924         if((is_array($contact)) && ($photo_timestamp) && (strlen($photo_url)) && ($photo_timestamp > $contact['avatar-date'])) {
 925                 logger('consume_feed: Updating photo for ' . $contact['name']);
 926                 require_once("Photo.php");
 927                 $photo_failure = false;
 928                 $have_photo = false;
 929
 930                 $r = q("SELECT `resource-id` FROM `photo` WHERE `contact-id` = %d AND `uid` = %d LIMIT 1",
 931                         intval($contact['id']),
 932                         intval($contact['uid'])
 933                 );
 934                 if(count($r)) {
 935                         $resource_id = $r[0]['resource-id'];
 936                         $have_photo = true;
 937                 }
 938                 else {
 939                         $resource_id = photo_new_resource();
 940                 }
 941
 942                 $img_str = fetch_url($photo_url,true);
 943                 $img = new Photo($img_str);
 944                 if($img->is_valid()) {
 945                         if($have_photo) {
 946                                 q("DELETE FROM `photo` WHERE `resource-id` = '%s' AND `contact-id` = %d AND `uid` = %d",
 947                                         dbesc($resource_id),
 948                                         intval($contact['id']),
 949                                         intval($contact['uid'])
 950                                 );
 951                         }
 952
 953                         $img->scaleImageSquare(175);
 954
 955                         $hash = $resource_id;
 956                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 4);
 957
 958                         $img->scaleImage(80);
 959                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 5);
 960
 961                         $img->scaleImage(48);
 962                         $r = $img->store($contact['uid'], $contact['id'], $hash, basename($photo_url), t('Contact Photos') , 6);
 963
 964                         $a = get_app();
 965
 966                         q("UPDATE `contact` SET `avatar-date` = '%s', `photo` = '%s', `thumb` = '%s', `micro` = '%s'
 967                                 WHERE `uid` = %d AND `id` = %d LIMIT 1",
 968                                 dbesc(datetime_convert()),
 969                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-4.jpg'),
 970                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-5.jpg'),
 971                                 dbesc($a->get_baseurl() . '/photo/' . $hash . '-6.jpg'),
 972                                 intval($contact['uid']),
 973                                 intval($contact['id'])
 974                         );
 975                 }
 976         }
 977
 978         if((is_array($contact)) && ($name_updated) && (strlen($new_name)) && ($name_updated > $contact['name-date'])) {
 979                 q("UPDATE `contact` SET `name` = '%s', `name-date` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
 980                         dbesc(notags(trim($new_name))),
 981                         dbesc(datetime_convert()),
 982                         intval($contact['uid']),
 983                         intval($contact['id'])
 984                 );
 985         }
 986
 987         if(strlen($birthday)) {
 988                 if(substr($birthday,0,4) != $contact['bdyear']) {
 989                         logger('consume_feed: updating birthday: ' . $birthday);
 990
 991                         /**
 992                          *
 993                          * Add new birthday event for this person
 994                          *
 995                          * $bdtext is just a readable placeholder in case the event is shared
 996                          * with others. We will replace it during presentation to our $importer
 997                          * to contain a sparkle link and perhaps a photo.
 998                          *
 999                          */
1000
1001                         $bdtext = t('Birthday:') . ' [url=' . $contact['url'] . ']' . $contact['name'] . '[/url]' ;
1002
1003
1004                         $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`desc`,`type`)
1005                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s' ) ",
1006                                 intval($contact['uid']),
1007                                 intval($contact['id']),
1008                                 dbesc(datetime_convert()),
1009                                 dbesc(datetime_convert()),
1010                                 dbesc(datetime_convert('UTC','UTC', $birthday)),
1011                                 dbesc(datetime_convert('UTC','UTC', $birthday . ' + 1 day ')),
1012                                 dbesc($bdtext),
1013                                 dbesc('birthday')
1014                         );
1015
1016
1017                         // update bdyear
1018
1019                         q("UPDATE `contact` SET `bdyear` = '%s' WHERE `uid` = %d AND `id` = %d LIMIT 1",
1020                                 dbesc(substr($birthday,0,4)),
1021                                 intval($contact['uid']),
1022                                 intval($contact['id'])
1023                         );
1024
1025                         // This function is called twice without reloading the contact
1026                         // Make sure we only create one event. This is why &$contact
1027                         // is a reference var in this function
1028
1029                         $contact['bdyear'] = substr($birthday,0,4);
1030                 }
1031
1032         }
1033
1034
1035         // process any deleted entries
1036
1037         $del_entries = $feed->get_feed_tags(NAMESPACE_TOMB, 'deleted-entry');
1038         if(is_array($del_entries) && count($del_entries)) {
1039                 foreach($del_entries as $dentry) {
1040                         $deleted = false;
1041                         if(isset($dentry['attribs']['']['ref'])) {
1042                                 $uri = $dentry['attribs']['']['ref'];
1043                                 $deleted = true;
1044                                 if(isset($dentry['attribs']['']['when'])) {
1045                                         $when = $dentry['attribs']['']['when'];
1046                                         $when = datetime_convert('UTC','UTC', $when, 'Y-m-d H:i:s');
1047                                 }
1048                                 else
1049                                         $when = datetime_convert('UTC','UTC','now','Y-m-d H:i:s');
1050                         }
1051                         if($deleted && is_array($contact)) {
1052                                 $r = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d AND `contact-id` = %d LIMIT 1",
1053                                         dbesc($uri),
1054                                         intval($importer['uid']),
1055                                         intval($contact['id'])
1056                                 );
1057                                 if(count($r)) {
1058                                         $item = $r[0];
1059
1060                                         if(! $item['deleted'])
1061                                                 logger('consume_feed: deleting item ' . $item['id'] . ' uri=' . $item['uri'], LOGGER_DEBUG);
1062
1063                                         if($item['uri'] == $item['parent-uri']) {
1064                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1065                                                         `body` = '', `title` = ''
1066                                                         WHERE `parent-uri` = '%s' AND `uid` = %d",
1067                                                         dbesc($when),
1068                                                         dbesc(datetime_convert()),
1069                                                         dbesc($item['uri']),
1070                                                         intval($importer['uid'])
1071                                                 );
1072                                         }
1073                                         else {
1074                                                 $r = q("UPDATE `item` SET `deleted` = 1, `edited` = '%s', `changed` = '%s',
1075                                                         `body` = '', `title` = ''
1076                                                         WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1077                                                         dbesc($when),
1078                                                         dbesc(datetime_convert()),
1079                                                         dbesc($uri),
1080                                                         intval($importer['uid'])
1081                                                 );
1082                                                 if($item['last-child']) {
1083                                                         // ensure that last-child is set in case the comment that had it just got wiped.
1084                                                         q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d ",
1085                                                                 dbesc(datetime_convert()),
1086                                                                 dbesc($item['parent-uri']),
1087                                                                 intval($item['uid'])
1088                                                         );
1089                                                         // who is the last child now?
1090                                                         $r = q("SELECT `id` FROM `item` WHERE `parent-uri` = '%s' AND `type` != 'activity' AND `deleted` = 0 AND `uid` = %d
1091                                                                 ORDER BY `created` DESC LIMIT 1",
1092                                                                         dbesc($item['parent-uri']),
1093                                                                         intval($importer['uid'])
1094                                                         );
1095                                                         if(count($r)) {
1096                                                                 q("UPDATE `item` SET `last-child` = 1 WHERE `id` = %d LIMIT 1",
1097                                                                         intval($r[0]['id'])
1098                                                                 );
1099                                                         }
1100                                                 }
1101                                         }
1102                                 }
1103                         }
1104                 }
1105         }
1106
1107         // Now process the feed
1108
1109         if($feed->get_item_quantity()) {
1110
1111                 logger('consume_feed: feed item count = ' . $feed->get_item_quantity());
1112
1113         // in inverse date order
1114                 if ($datedir)
1115                         $items = array_reverse($feed->get_items());
1116                 else
1117                         $items = $feed->get_items();
1118
1119
1120                 foreach($items as $item) {
1121
1122                         $is_reply = false;
1123                         $item_id = $item->get_id();
1124                         $rawthread = $item->get_item_tags( NAMESPACE_THREAD,'in-reply-to');
1125                         if(isset($rawthread[0]['attribs']['']['ref'])) {
1126                                 $is_reply = true;
1127                                 $parent_uri = $rawthread[0]['attribs']['']['ref'];
1128                         }
1129
1130                         if(($is_reply) && is_array($contact)) {
1131
1132                                 // Have we seen it? If not, import it.
1133
1134                                 $item_id = $item->get_id();
1135
1136                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1137                                         dbesc($item_id),
1138                                         intval($importer['uid'])
1139                                 );
1140                                 // FIXME update content if 'updated' changes
1141                                 if(count($r)) {
1142                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1143                                         if(($allow) && ($allow[0]['data'] != $r[0]['last-child'])) {
1144                                                 $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1145                                                         dbesc(datetime_convert()),
1146                                                         dbesc($parent_uri),
1147                                                         intval($importer['uid'])
1148                                                 );
1149                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s'  WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1150                                                         intval($allow[0]['data']),
1151                                                         dbesc(datetime_convert()),
1152                                                         dbesc($item_id),
1153                                                         intval($importer['uid'])
1154                                                 );
1155                                         }
1156                                         continue;
1157                                 }
1158                                 $datarray = get_atom_elements($feed,$item);
1159                                 $force_parent = false;
1160                                 if($contact['network'] === 'stat') {
1161                                         $force_parent = true;
1162                                         if(strlen($datarray['title']))
1163                                                 unset($datarray['title']);
1164                                         $r = q("UPDATE `item` SET `last-child` = 0, `changed` = '%s' WHERE `parent-uri` = '%s' AND `uid` = %d",
1165                                                 dbesc(datetime_convert()),
1166                                                 dbesc($parent_uri),
1167                                                 intval($importer['uid'])
1168                                         );
1169                                         $datarray['last-child'] = 1;
1170                                 }
1171
1172                                 if(($contact['network'] === 'feed') || (! strlen($contact['notify']))) {
1173                                         // one way feed - no remote comment ability
1174                                         $datarray['last-child'] = 0;
1175                                 }
1176                                 $datarray['parent-uri'] = $parent_uri;
1177                                 $datarray['uid'] = $importer['uid'];
1178                                 $datarray['contact-id'] = $contact['id'];
1179                                 if((activity_match($datarray['verb'],ACTIVITY_LIKE)) || (activity_match($datarray['verb'],ACTIVITY_DISLIKE))) {
1180                                         $datarray['type'] = 'activity';
1181                                         $datarray['gravity'] = GRAVITY_LIKE;
1182                                 }
1183
1184                                 $r = item_store($datarray,$force_parent);
1185                                 continue;
1186                         }
1187
1188                         else {
1189                                 // Head post of a conversation. Have we seen it? If not, import it.
1190
1191                                 $item_id = $item->get_id();
1192                                 $r = q("SELECT `uid`, `last-child`, `edited` FROM `item` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1193                                         dbesc($item_id),
1194                                         intval($importer['uid'])
1195                                 );
1196                                 if(count($r)) {
1197                                         $allow = $item->get_item_tags( NAMESPACE_DFRN, 'comment-allow');
1198                                         if($allow && $allow[0]['data'] != $r[0]['last-child']) {
1199                                                 $r = q("UPDATE `item` SET `last-child` = %d , `changed` = '%s' WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1200                                                         intval($allow[0]['data']),
1201                                                         dbesc(datetime_convert()),
1202                                                         dbesc($item_id),
1203                                                         intval($importer['uid'])
1204                                                 );
1205                                         }
1206                                         continue;
1207                                 }
1208                                 $datarray = get_atom_elements($feed,$item);
1209
1210                                 if(activity_match($datarray['verb'],ACTIVITY_FOLLOW)) {
1211                                         logger('consume-feed: New follower');
1212                                         new_follower($importer,$contact,$datarray,$item);
1213                                         return;
1214                                 }
1215                                 if(activity_match($datarray['verb'],ACTIVITY_UNFOLLOW))  {
1216                                         lose_follower($importer,$contact,$datarray,$item);
1217                                         return;
1218                                 }
1219                                 if(! is_array($contact))
1220                                         return;
1221
1222                                 if($contact['network'] === 'stat') {
1223                                         if(strlen($datarray['title']))
1224                                                 unset($datarray['title']);
1225                                         $datarray['last-child'] = 1;
1226                                 }
1227
1228                                 if(($contact['network'] === 'feed') || (! strlen($contact['notify']))) {
1229                                         // one way feed - no remote comment ability
1230                                         $datarray['last-child'] = 0;
1231                                 }
1232
1233                                 $datarray['parent-uri'] = $item_id;
1234                                 $datarray['uid'] = $importer['uid'];
1235                                 $datarray['contact-id'] = $contact['id'];
1236                                 $r = item_store($datarray);
1237                                 continue;
1238
1239                         }
1240                 }
1241         }
1242 }
1243
1244 function new_follower($importer,$contact,$datarray,$item) {
1245         $url = notags(trim($datarray['author-link']));
1246         $name = notags(trim($datarray['author-name']));
1247         $photo = notags(trim($datarray['author-avatar']));
1248
1249         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
1250         if($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'])
1251                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
1252
1253         if(is_array($contact)) {
1254                 if($contact['network'] == 'stat' && $contact['rel'] == REL_FAN) {
1255                         $r = q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
1256                                 intval(REL_BUD),
1257                                 intval($contact['id']),
1258                                 intval($importer['uid'])
1259                         );
1260                 }
1261
1262                 // send email notification to owner?
1263         }
1264         else {
1265
1266                 // create contact record - set to readonly
1267
1268                 $r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `name`, `nick`, `photo`, `network`, `rel`,
1269                         `blocked`, `readonly`, `pending` )
1270                         VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 1, 1 ) ",
1271                         intval($importer['uid']),
1272                         dbesc(datetime_convert()),
1273                         dbesc($url),
1274                         dbesc($name),
1275                         dbesc($nick),
1276                         dbesc($photo),
1277                         dbesc('stat'),
1278                         intval(REL_VIP)
1279                 );
1280                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `url` = '%s' AND `pending` = 1 AND `rel` = %d LIMIT 1",
1281                                 intval($importer['uid']),
1282                                 dbesc($url),
1283                                 intval(REL_VIP)
1284                 );
1285                 if(count($r))
1286                                 $contact_record = $r[0];
1287
1288                 // create notification
1289                 $hash = random_string();
1290
1291                 if(is_array($contact_record)) {
1292                         $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `hash`, `datetime`)
1293                                 VALUES ( %d, %d, 0, 0, '%s', '%s' )",
1294                                 intval($importer['uid']),
1295                                 intval($contact_record['id']),
1296                                 dbesc($hash),
1297                                 dbesc(datetime_convert())
1298                         );
1299                 }
1300                 $r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
1301                         intval($importer['uid'])
1302                 );
1303                 $a = get_app();
1304                 if(count($r)) {
1305                         if(($r[0]['notify-flags'] & NOTIFY_INTRO) && ($r[0]['page-flags'] == PAGE_NORMAL)) {
1306                                 $email_tpl = load_view_file('view/follow_notify_eml.tpl');
1307                                 $email = replace_macros($email_tpl, array(
1308                                         '$requestor' => ((strlen($name)) ? $name : t('[Name Withheld]')),
1309                                         '$url' => $url,
1310                                         '$myname' => $r[0]['username'],
1311                                         '$siteurl' => $a->get_baseurl(),
1312                                         '$sitename' => $a->config['sitename']
1313                                 ));
1314                                 $res = mail($r[0]['email'],
1315                                         t("You have a new follower at ") . $a->config['sitename'],
1316                                         $email,
1317                                         'From: ' . t('Administrator') . '@' . $_SERVER['SERVER_NAME'] );
1318
1319                         }
1320                 }
1321         }
1322 }
1323
1324 function lose_follower($importer,$contact,$datarray,$item) {
1325
1326         if(($contact['rel'] == REL_BUD) || ($contact['rel'] == REL_FAN)) {
1327                 q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d LIMIT 1",
1328                         intval(REL_FAN),
1329                         intval($contact['id'])
1330                 );
1331         }
1332         else {
1333                 contact_remove($contact['id']);
1334         }
1335 }
1336
1337
1338 function subscribe_to_hub($url,$importer,$contact) {
1339
1340         if(is_array($importer)) {
1341                 $r = q("SELECT `nickname` FROM `user` WHERE `uid` = %d LIMIT 1",
1342                         intval($importer['uid'])
1343                 );
1344         }
1345         if(! count($r))
1346                 return;
1347
1348         $push_url = get_config('system','url') . '/pubsub/' . $r[0]['nickname'] . '/' . $contact['id'];
1349
1350         // Use a single verify token, even if multiple hubs
1351
1352         $verify_token = ((strlen($contact['hub-verify'])) ? $contact['hub-verify'] : random_string());
1353
1354         $params= 'hub.mode=subscribe&hub.callback=' . urlencode($push_url) . '&hub.topic=' . urlencode($contact['poll']) . '&hub.verify=async&hub.verify_token=' . $verify_token;
1355
1356         logger('subscribe_to_hub: subscribing ' . $contact['name'] . ' to hub ' . $url . ' with verifier ' . $verify_token);
1357
1358         if(! strlen($contact['hub-verify'])) {
1359                 $r = q("UPDATE `contact` SET `hub-verify` = '%s' WHERE `id` = %d LIMIT 1",
1360                         dbesc($verify_token),
1361                         intval($contact['id'])
1362                 );
1363         }
1364
1365         post_url($url,$params);
1366         return;
1367
1368 }
1369
1370
1371 function atom_author($tag,$name,$uri,$h,$w,$photo) {
1372         $o = '';
1373         if(! $tag)
1374                 return $o;
1375         $name = xmlify($name);
1376         $uri = xmlify($uri);
1377         $h = intval($h);
1378         $w = intval($w);
1379         $photo = xmlify($photo);
1380
1381
1382         $o .= "<$tag>\r\n";
1383         $o .= "<name>$name</name>\r\n";
1384         $o .= "<uri>$uri</uri>\r\n";
1385         $o .= '<link rel="photo"  type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
1386         $o .= '<link rel="avatar" type="image/jpeg" media:width="' . $w . '" media:height="' . $h . '" href="' . $photo . '" />' . "\r\n";
1387
1388         call_hooks('atom_author', $o);
1389
1390         $o .= "</$tag>\r\n";
1391         return $o;
1392 }
1393
1394 function atom_entry($item,$type,$author,$owner,$comment = false) {
1395
1396         if($item['deleted'])
1397                 return '<at:deleted-entry ref="' . xmlify($item['uri']) . '" when="' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '" />' . "\r\n";
1398
1399         $a = get_app();
1400
1401         $o = "\r\n\r\n<entry>\r\n";
1402
1403         if(is_array($author))
1404                 $o .= atom_author('author',$author['name'],$author['url'],80,80,$author['thumb']);
1405         else
1406                 $o .= atom_author('author',$item['name'],$item['url'],80,80,$item['thumb']);
1407         if(strlen($item['owner-name']))
1408                 $o .= atom_author('dfrn:owner',$item['owner-name'],$item['owner-link'],80,80,$item['owner-avatar']);
1409
1410         if($item['parent'] != $item['id'])
1411                 $o .= '<thr:in-reply-to ref="' . xmlify($item['parent-uri']) . '" type="text/html" href="' .  xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
1412
1413         $o .= '<id>' . xmlify($item['uri']) . '</id>' . "\r\n";
1414         $o .= '<title>' . xmlify($item['title']) . '</title>' . "\r\n";
1415         $o .= '<published>' . xmlify(datetime_convert('UTC','UTC',$item['created'] . '+00:00',ATOM_TIME)) . '</published>' . "\r\n";
1416         $o .= '<updated>' . xmlify(datetime_convert('UTC','UTC',$item['edited'] . '+00:00',ATOM_TIME)) . '</updated>' . "\r\n";
1417         $o .= '<dfrn:env>' . base64url_encode($item['body'], true) . '</dfrn:env>' . "\r\n";
1418         $o .= '<content type="' . $type . '" >' . xmlify(($type === 'html') ? bbcode($item['body']) : $item['body']) . '</content>' . "\r\n";
1419         $o .= '<link rel="alternate" href="' . xmlify($a->get_baseurl() . '/display/' . $owner['nickname'] . '/' . $item['id']) . '" />' . "\r\n";
1420         if($comment)
1421                 $o .= '<dfrn:comment-allow>' . intval($item['last-child']) . '</dfrn:comment-allow>' . "\r\n";
1422
1423         if($item['location']) {
1424                 $o .= '<dfrn:location>' . xmlify($item['location']) . '</dfrn:location>' . "\r\n";
1425                 $o .= '<poco:address><poco:formatted>' . xmlify($item['location']) . '</poco:formatted></poco:address>' . "\r\n";
1426         }
1427
1428         if($item['coord'])
1429                 $o .= '<georss:point>' . xmlify($item['coord']) . '</georss:point>' . "\r\n";
1430
1431         if(($item['private']) || strlen($item['allow_cid']) || strlen($item['allow_gid']) || strlen($item['deny_cid']) || strlen($item['deny_gid']))
1432                 $o .= '<dfrn:private>1</dfrn:private>' . "\r\n";
1433
1434         $verb = construct_verb($item);
1435         $o .= '<as:verb>' . xmlify($verb) . '</as:verb>' . "\r\n";
1436         $actobj = construct_activity_object($item);
1437         if(strlen($actobj))
1438                 $o .= $actobj;
1439         $actarg = construct_activity_target($item);
1440         if(strlen($actarg))
1441                 $o .= $actarg;
1442
1443         $mentioned = get_mentions($item);
1444         if($mentioned)
1445                 $o .= $mentioned;
1446
1447         call_hooks('atom_entry', $o);
1448
1449         $o .= '</entry>' . "\r\n";
1450
1451         return $o;
1452 }
1453