include/ostatus.php

   1 <?php
   2 /**
   3  * @file include/ostatus.php
   4  */
   5
   6 use Friendica\App;
   7 use Friendica\Core\System;
   8 use Friendica\Core\Config;
   9 use Friendica\Network\Probe;
  10
  11 require_once 'include/Contact.php';
  12 require_once 'include/threads.php';
  13 require_once 'include/html2bbcode.php';
  14 require_once 'include/bbcode.php';
  15 require_once 'include/items.php';
  16 require_once 'mod/share.php';
  17 require_once 'include/enotify.php';
  18 require_once 'include/socgraph.php';
  19 require_once 'include/Photo.php';
  20 require_once 'include/probe.php';
  21 require_once 'include/follow.php';
  22 require_once 'include/api.php';
  23 require_once 'mod/proxy.php';
  24 require_once 'include/xml.php';
  25 require_once 'include/cache.php';
  26
  27 /**
  28  * @brief This class contain functions for the OStatus protocol
  29  *
  30  */
  31 class ostatus {
  32         const OSTATUS_DEFAULT_POLL_INTERVAL = 30; // given in minutes
  33         const OSTATUS_DEFAULT_POLL_TIMEFRAME = 1440; // given in minutes
  34         const OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS = 14400; // given in minutes
  35
  36         private static $itemlist;
  37
  38         /**
  39          * @brief Imports an XML string containing OStatus elements
  40          *
  41          * @param string $xml The XML
  42          * @param array $importer user record of the importing user
  43          * @param $contact
  44          * @param array $hub Called by reference, returns the fetched hub data
  45          */
  46         public static function import($xml, $importer, &$contact, &$hub) {
  47                 self::process($xml, $importer, $contact, $hub);
  48         }
  49
  50         /**
  51          * @brief Imports an XML string containing OStatus elements
  52          *
  53          * @param string $xml The XML
  54          * @param array $importer user record of the importing user
  55          * @param $contact
  56          * @param array $hub Called by reference, returns the fetched hub data
  57          */
  58         private static function process($xml, $importer, &$contact, &$hub, $stored = false, $initialize = true) {
  59                 if ($initialize) {
  60                         self::$itemlist = array();
  61                 }
  62
  63                 logger("Import OStatus message", LOGGER_DEBUG);
  64
  65                 if ($xml == "") {
  66                         return false;
  67                 }
  68                 $doc = new DOMDocument();
  69                 @$doc->loadXML($xml);
  70
  71                 $xpath = new DomXPath($doc);
  72                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
  73                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
  74                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
  75                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
  76                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
  77                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
  78                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
  79                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
  80
  81                 $hub = "";
  82                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
  83                 if (is_object($hub_attributes)) {
  84                         foreach ($hub_attributes AS $hub_attribute) {
  85                                 if ($hub_attribute->name == "href") {
  86                                         $hub = $hub_attribute->textContent;
  87                                         logger("Found hub ".$hub, LOGGER_DEBUG);
  88                                 }
  89                         }
  90                 }
  91
  92                 $header = array();
  93                 $header["uid"] = $importer["uid"];
  94                 $header["network"] = NETWORK_OSTATUS;
  95                 $header["type"] = "remote";
  96                 $header["wall"] = 0;
  97                 $header["origin"] = 0;
  98                 $header["gravity"] = GRAVITY_PARENT;
  99
 100                 $first_child = $doc->firstChild->tagName;
 101
 102                 if ($first_child == "feed") {
 103                         $entries = $xpath->query('/atom:feed/atom:entry');
 104                         $header["protocol"] = PROTOCOL_OSTATUS_FEED;
 105                 } else {
 106                         $entries = $xpath->query('/atom:entry');
 107                         $header["protocol"] = PROTOCOL_OSTATUS_SALMON;
 108                 }
 109
 110                 // Fetch the first author
 111                 $authordata = $xpath->query('//author')->item(0);
 112                 $author = self::fetchauthor($xpath, $authordata, $importer, $contact, $stored);
 113
 114                 $entry = $xpath->query('/atom:entry');
 115                 $header["protocol"] = PROTOCOL_OSTATUS_SALMON;
 116
 117                 // Reverse the order of the entries
 118                 $entrylist = array();
 119
 120                 foreach ($entries AS $entry) {
 121                         $entrylist[] = $entry;
 122                 }
 123
 124                 if (!$initialize && (count($entrylist) > 1)) {
 125                         return false;
 126                 }
 127
 128                 foreach (array_reverse($entrylist) AS $entry) {
 129                         // fetch the author
 130                         $authorelement = $xpath->query('/atom:entry/atom:author', $entry);
 131                         if ($authorelement->length > 0) {
 132                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, $stored);
 133                         }
 134
 135                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $entry)->item(0)->nodeValue;
 136                         if ($value != "") {
 137                                 $nickname = $value;
 138                         } else {
 139                                 $nickname = $author["author-name"];
 140                         }
 141
 142                         $item = array_merge($header, $author);
 143
 144                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 145
 146                         /// Delete a message
 147                         if ($item["verb"] == "qvitter-delete-notice" || $item["verb"] == ACTIVITY_DELETE) {
 148                                 // ignore "Delete" messages (by now)
 149                                 logger("Ignore delete message ".print_r($item, true));
 150                                 continue;
 151                         }
 152
 153                         if ($item["verb"] == ACTIVITY_JOIN) {
 154                                 // ignore "Join" messages
 155                                 logger("Ignore join message ".print_r($item, true));
 156                                 continue;
 157                         }
 158
 159                         if ($item["verb"] == ACTIVITY_FOLLOW) {
 160                                 new_follower($importer, $contact, $item, $nickname);
 161                                 continue;
 162                         }
 163
 164                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 165                                 lose_follower($importer, $contact, $item, $dummy);
 166                                 continue;
 167                         }
 168
 169                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 170                                 // Ignore "Unfavorite" message
 171                                 logger("Ignore unfavorite message ".print_r($item, true));
 172                                 continue;
 173                         }
 174
 175                         if ($item["verb"] == ACTIVITY_FAVORITE) {
 176                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 177                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
 178
 179                                 $item["verb"] = ACTIVITY_LIKE;
 180                                 $item["parent-uri"] = $orig_uri;
 181                                 $item["gravity"] = GRAVITY_LIKE;
 182                         }
 183
 184                         // http://activitystrea.ms/schema/1.0/rsvp-yes
 185                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE))) {
 186                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 187                         }
 188
 189                         $doc2 = new DOMDocument();
 190                         $doc2->loadXML($xml);
 191                         $doc2->preserveWhiteSpace = false;
 192                         $doc2->formatOutput = true;
 193                         $xml2 = $doc2->saveXML();
 194
 195                         $item["source"] = $xml2;
 196
 197                         self::processPost($xpath, $entry, $item, $importer);
 198
 199                         if ($initialize && (count(self::$itemlist) > 0)) {
 200                                 // We will import it everytime, when it is started by our contacts
 201                                 $valid = !empty(self::$itemlist[0]['contact-id']);
 202                                 if (!$valid) {
 203                                         // If not, then it depends on this setting
 204                                         $valid = !Config::get('system','ostatus_full_threads');
 205                                 }
 206
 207                                 if ($valid) {
 208                                         // But we will only import complete threads
 209                                         $valid = self::$itemlist[0]['uri'] == self::$itemlist[0]['parent-uri'];
 210                                 }
 211
 212                                 if ($valid) {
 213                                         // Never post a thread when the only interaction by our contact was a like
 214                                         $valid = false;
 215                                         $verbs = array(ACTIVITY_POST, ACTIVITY_SHARE);
 216                                         foreach (self::$itemlist AS $item) {
 217                                                 if (!empty($item['contact-id']) && in_array($item['verb'], $verbs)) {
 218                                                         $valid = true;
 219                                                 }
 220                                         }
 221                                 }
 222
 223                                 if ($valid) {
 224                                         $default_contact = 0;
 225                                         $key = count(self::$itemlist);
 226                                         for ($key = count(self::$itemlist) - 1; $key >= 0; $key--) {
 227                                                 if (empty(self::$itemlist[$key]['contact-id'])) {
 228                                                         self::$itemlist[$key]['contact-id'] = $default_contact;
 229                                                 } else {
 230                                                         $default_contact = $item['contact-id'];
 231                                                 }
 232                                         }
 233                                         foreach (self::$itemlist AS $item) {
 234                                                 $found = dba::exists('item', array('uid' => $importer["uid"], 'uri' => $item["uri"]));
 235                                                 if ($found) {
 236                                                         logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already exists.", LOGGER_DEBUG);
 237                                                 } else {
 238                                                         $ret = item_store($item);
 239                                                         logger('Item was stored with return value '.$ret);
 240                                                 }
 241                                         }
 242                                 }
 243                                 self::$itemlist = array();
 244                         }
 245                 }
 246                 return true;
 247         }
 248
 249         private static function processPost($xpath, $entry, &$item, $importer) {
 250                 $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 251                 $item["body"] = html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue);
 252                 $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 253                 if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) || ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 254                         $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 255                         $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 256                 } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION) {
 257                         $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 258                 }
 259
 260                 $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 261                 $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 262                 $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 263                 $item['conversation-uri'] = $conversation;
 264
 265                 $conv = $xpath->query('ostatus:conversation', $entry);
 266                 if (is_object($conv->item(0))) {
 267                         foreach ($conv->item(0)->attributes AS $attributes) {
 268                                 if ($attributes->name == "ref") {
 269                                         $item['conversation-uri'] = $attributes->textContent;
 270                                 }
 271                                 if ($attributes->name == "href") {
 272                                         $item['conversation-href'] = $attributes->textContent;
 273                                 }
 274                         }
 275                 }
 276
 277                 if (empty($item['conversation-href']) && !empty($item['conversation-uri'])) {
 278                         $item['conversation-href'] =  $item['conversation-uri'];
 279                 }
 280
 281                 $related = "";
 282
 283                 $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 284                 if (is_object($inreplyto->item(0))) {
 285                         foreach ($inreplyto->item(0)->attributes AS $attributes) {
 286                                 if ($attributes->name == "ref") {
 287                                         $item["parent-uri"] = $attributes->textContent;
 288                                 }
 289                                 if ($attributes->name == "href") {
 290                                         $related = $attributes->textContent;
 291                                 }
 292                         }
 293                 }
 294
 295                 $georsspoint = $xpath->query('georss:point', $entry);
 296                 if (!empty($georsspoint) && ($georsspoint->length > 0)) {
 297                         $item["coord"] = $georsspoint->item(0)->nodeValue;
 298                 }
 299
 300                 $categories = $xpath->query('atom:category', $entry);
 301                 if ($categories) {
 302                         foreach ($categories AS $category) {
 303                                 foreach ($category->attributes AS $attributes) {
 304                                         if ($attributes->name == "term") {
 305                                                 $term = $attributes->textContent;
 306                                                 if (strlen($item["tag"])) {
 307                                                         $item["tag"] .= ',';
 308                                                 }
 309                                                 $item["tag"] .= "#[url=".System::baseUrl()."/search?tag=".$term."]".$term."[/url]";
 310                                         }
 311                                 }
 312                         }
 313                 }
 314
 315                 $self = '';
 316                 $add_body = '';
 317
 318                 $links = $xpath->query('atom:link', $entry);
 319                 if ($links) {
 320                         $link_data = self::processLinks($links, $item);
 321                         $self = $link_data['self'];
 322                         $add_body = $link_data['add_body'];
 323                 }
 324
 325                 $repeat_of = "";
 326
 327                 $notice_info = $xpath->query('statusnet:notice_info', $entry);
 328                 if ($notice_info && ($notice_info->length > 0)) {
 329                         foreach ($notice_info->item(0)->attributes AS $attributes) {
 330                                 if ($attributes->name == "source") {
 331                                         $item["app"] = strip_tags($attributes->textContent);
 332                                 }
 333                                 if ($attributes->name == "repeat_of") {
 334                                         $repeat_of = $attributes->textContent;
 335                                 }
 336                         }
 337                 }
 338                 // Is it a repeated post?
 339                 if (($repeat_of != "") || ($item["verb"] == ACTIVITY_SHARE)) {
 340                         $link_data = self::processRepeatedItem($xpath, $entry, $item, $importer);
 341                         if (!empty($link_data['add_body'])) {
 342                                 $add_body .= $link_data['add_body'];
 343                         }
 344                 }
 345
 346                 $item["body"] .= $add_body;
 347
 348                 // Only add additional data when there is no picture in the post
 349                 if (!strstr($item["body"],'[/img]')) {
 350                         $item["body"] = add_page_info_to_body($item["body"]);
 351                 }
 352
 353                 // Mastodon Content Warning
 354                 if (($item["verb"] == ACTIVITY_POST) && $xpath->evaluate('boolean(atom:summary)', $entry)) {
 355                         $clear_text = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 356
 357                         $item["body"] = html2bbcode($clear_text) . '[spoiler]' . $item["body"] . '[/spoiler]';
 358                 }
 359
 360                 if (isset($item["parent-uri"]) && ($related != '')) {
 361                         self::FetchRelated($related, $item["parent-uri"], $importer);
 362                         $item["type"] = 'remote-comment';
 363                         $item["gravity"] = GRAVITY_COMMENT;
 364                 } else {
 365                         $item["parent-uri"] = $item["uri"];
 366                 }
 367
 368                 if ($item['author-link'] != '') {
 369                         $item = store_conversation($item);
 370                 }
 371
 372                 self::$itemlist[] = $item;
 373         }
 374
 375         private static function fetchRelated($related, $related_uri, $importer) {
 376                 $condition = array('`item-uri` = ? AND `protocol` IN (?, ?)', $related_uri, PROTOCOL_DFRN, PROTOCOL_OSTATUS_SALMON);
 377                 $conversation = dba::select('conversation', array('source', 'protocol'), $condition,  array('limit' => 1));
 378                 if (dbm::is_result($conversation)) {
 379                         $stored = true;
 380                         $xml = $conversation['source'];
 381                         if (self::process($xml, $importer, $contact, $hub, $stored, false)) {
 382                                 return;
 383                         }
 384                         if ($conversation['protocol'] == PROTOCOL_OSTATUS_SALMON) {
 385                                 dba::delete('conversation', array('item-uri' => $related_uri));
 386                         }
 387                 }
 388
 389                 $stored = false;
 390                 $related_data = z_fetch_url($related);
 391
 392                 if (!$related_data['success']) {
 393                         return;
 394                 }
 395
 396                 $xml = '';
 397
 398                 if (stristr($related_data['header'], 'Content-Type: application/atom+xml')) {
 399                         $xml = $related_data['body'];
 400                 }
 401
 402                 if ($xml == '') {
 403                         $doc = new DOMDocument();
 404                         if (!@$doc->loadHTML($related_data['body'])) {
 405                                 return;
 406                         }
 407                         $xpath = new DomXPath($doc);
 408
 409                         $links = $xpath->query('//link');
 410                         if ($links) {
 411                                 foreach ($links AS $link) {
 412                                         $attribute = self::read_attributes($link);
 413                                         if (($attribute['rel'] == 'alternate') && ($attribute['type'] == 'application/atom+xml')) {
 414                                                 $related_atom = z_fetch_url($attribute['href']);
 415
 416                                                 if ($related_atom['success']) {
 417                                                         $xml = $related_atom['body'];
 418                                                 }
 419                                         }
 420                                 }
 421                         }
 422                 }
 423
 424                 // Workaround for older GNU Social servers
 425                 if (($xml == '') && strstr($related, '/notice/')) {
 426                         $related_atom = z_fetch_url(str_replace('/notice/', '/api/statuses/show/', $related).',atom');
 427
 428                         if ($related_atom['success']) {
 429                                 $xml = $related_atom['body'];
 430                         }
 431                 }
 432
 433                 if ($xml != '') {
 434                         self::process($xml, $importer, $contact, $hub, $stored, false);
 435                 }
 436                 return;
 437         }
 438
 439         private static function processRepeatedItem($xpath, $entry, &$item, $importer) {
 440                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 441
 442                 if (!is_object($activityobjects)) {
 443                         return array();
 444                 }
 445
 446                 $link_data = array();
 447
 448                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 449
 450                 $links = $xpath->query("atom:link", $activityobjects);
 451                 if ($links) {
 452                         $link_data = self::processLinks($links, $item);
 453                 }
 454
 455                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 456                 $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 457                 $orig_edited = $xpath->query('atom:updated/text()', $activityobjects)->item(0)->nodeValue;
 458
 459                 $orig_contact = $contact;
 460                 $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 461
 462                 $item["author-name"] = $orig_author["author-name"];
 463                 $item["author-link"] = $orig_author["author-link"];
 464                 $item["author-avatar"] = $orig_author["author-avatar"];
 465
 466                 $item["body"] = html2bbcode($orig_body);
 467                 $item["created"] = $orig_created;
 468                 $item["edited"] = $orig_edited;
 469
 470                 $item["uri"] = $orig_uri;
 471
 472                 $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 473
 474                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 475
 476                 $inreplyto = $xpath->query('thr:in-reply-to', $activityobjects);
 477                 if (is_object($inreplyto->item(0))) {
 478                         foreach ($inreplyto->item(0)->attributes AS $attributes) {
 479                                 if ($attributes->name == "ref") {
 480                                         $item["parent-uri"] = $attributes->textContent;
 481                                 }
 482                         }
 483                 }
 484
 485                 return $link_data;
 486         }
 487
 488         private static function processLinks($links, &$item) {
 489                 $link_data = array('add_body' => '', 'self' => '');
 490
 491                 foreach ($links AS $link) {
 492                         $attribute = self::read_attributes($link);
 493
 494                         if (($attribute['rel'] != "") && ($attribute['href'] != "")) {
 495                                 switch ($attribute['rel']) {
 496                                         case "alternate":
 497                                                 $item["plink"] = $attribute['href'];
 498                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) ||
 499                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 500                                                         $item["body"] .= add_page_info($attribute['href']);
 501                                                 }
 502                                                 break;
 503                                         case "ostatus:conversation":
 504                                                 $link_data['conversation'] = $attribute['href'];
 505                                                 $item['conversation-href'] = $link_data['conversation'];
 506                                                 if (!isset($item['conversation-uri'])) {
 507                                                         $item['conversation-uri'] = $item['conversation-href'];
 508                                                 }
 509                                                 break;
 510                                         case "enclosure":
 511                                                 $filetype = strtolower(substr($attribute['type'], 0, strpos($attribute['type'],'/')));
 512                                                 if ($filetype == 'image') {
 513                                                         $link_data['add_body'] .= "\n[img]".$attribute['href'].'[/img]';
 514                                                 } else {
 515                                                         if (strlen($item["attach"])) {
 516                                                                 $item["attach"] .= ',';
 517                                                         }
 518                                                         if (!isset($attribute['length'])) {
 519                                                                 $attribute['length'] = "0";
 520                                                         }
 521                                                         $item["attach"] .= '[attach]href="'.$attribute['href'].'" length="'.$attribute['length'].'" type="'.$attribute['type'].'" title="'.$attribute['title'].'"[/attach]';
 522                                                 }
 523                                                 break;
 524                                         case "related":
 525                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 526                                                         if (!isset($item["parent-uri"])) {
 527                                                                 $item["parent-uri"] = $attribute['href'];
 528                                                         }
 529                                                         $link_data['related'] = $attribute['href'];
 530                                                 } else {
 531                                                         $item["body"] .= add_page_info($attribute['href']);
 532                                                 }
 533                                                 break;
 534                                         case "self":
 535                                                 if ($item["plink"] == '') {
 536                                                         $item["plink"] = $attribute['href'];
 537                                                 }
 538                                                 $link_data['self'] = $attribute['href'];
 539                                                 break;
 540                                 }
 541                         }
 542                 }
 543                 return $link_data;
 544         }
 545
 546         /**
 547          * @brief Fetches author data
 548          *
 549          * @param object $xpath The xpath object
 550          * @param object $context The xml context of the author detals
 551          * @param array $importer user record of the importing user
 552          * @param array $contact Called by reference, will contain the fetched contact
 553          * @param bool $onlyfetch Only fetch the header without updating the contact entries
 554          *
 555          * @return array Array of author related entries for the item
 556          */
 557         private static function fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch) {
 558
 559                 $author = array();
 560                 $author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
 561                 $author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
 562                 $addr = $xpath->evaluate('atom:author/atom:email/text()', $context)->item(0)->nodeValue;
 563
 564                 $aliaslink = $author["author-link"];
 565
 566                 $alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
 567                 if (is_object($alternate)) {
 568                         foreach ($alternate AS $attributes) {
 569                                 if (($attributes->name == "href") && ($attributes->textContent != "")) {
 570                                         $author["author-link"] = $attributes->textContent;
 571                                 }
 572                         }
 573                 }
 574
 575                 $author["contact-id"] = $contact["id"];
 576
 577                 if ($author["author-link"] != "") {
 578                         if ($aliaslink == "") {
 579                                 $aliaslink = $author["author-link"];
 580                         }
 581
 582                         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` IN ('%s', '%s') AND `network` != '%s'",
 583                                 intval($importer["uid"]), dbesc(normalise_link($author["author-link"])),
 584                                 dbesc(normalise_link($aliaslink)), dbesc(NETWORK_STATUSNET));
 585
 586                         if (dbm::is_result($r)) {
 587                                 $contact = $r[0];
 588                                 $author["contact-id"] = $r[0]["id"];
 589                                 $author["author-link"] = $r[0]["url"];
 590                         }
 591                 } elseif ($addr != "") {
 592                         // Should not happen
 593                         $contact = dba::fetch_first("SELECT * FROM `contact` WHERE `uid` = ? AND `addr` = ? AND `network` != ?",
 594                                         $importer["uid"], $addr, NETWORK_STATUSNET);
 595
 596                         if (dbm::is_result($contact)) {
 597                                 $author["contact-id"] = $contact["id"];
 598                                 $author["author-link"] = $contact["url"];
 599                         }
 600                 }
 601
 602                 $avatarlist = array();
 603                 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
 604                 foreach ($avatars AS $avatar) {
 605                         $href = "";
 606                         $width = 0;
 607                         foreach ($avatar->attributes AS $attributes) {
 608                                 if ($attributes->name == "href") {
 609                                         $href = $attributes->textContent;
 610                                 }
 611                                 if ($attributes->name == "width") {
 612                                         $width = $attributes->textContent;
 613                                 }
 614                         }
 615                         if ($href != "") {
 616                                 $avatarlist[$width] = $href;
 617                         }
 618                 }
 619                 if (count($avatarlist) > 0) {
 620                         krsort($avatarlist);
 621                         $author["author-avatar"] = Probe::fixAvatar(current($avatarlist), $author["author-link"]);
 622                 }
 623
 624                 $displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 625                 if ($displayname != "") {
 626                         $author["author-name"] = $displayname;
 627                 }
 628
 629                 $author["owner-name"] = $author["author-name"];
 630                 $author["owner-link"] = $author["author-link"];
 631                 $author["owner-avatar"] = $author["author-avatar"];
 632
 633                 // Only update the contacts if it is an OStatus contact
 634                 if ($r && !$onlyfetch && ($contact["network"] == NETWORK_OSTATUS)) {
 635
 636                         // Update contact data
 637
 638                         // This query doesn't seem to work
 639                         // $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
 640                         // if ($value != "")
 641                         //      $contact["notify"] = $value;
 642
 643                         // This query doesn't seem to work as well - I hate these queries
 644                         // $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
 645                         // if ($value != "")
 646                         //      $contact["poll"] = $value;
 647
 648                         $value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
 649                         if ($value != "")
 650                                 $contact["alias"] = $value;
 651
 652                         $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 653                         if ($value != "")
 654                                 $contact["name"] = $value;
 655
 656                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 657                         if ($value != "")
 658                                 $contact["nick"] = $value;
 659
 660                         $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
 661                         if ($value != "")
 662                                 $contact["about"] = html2bbcode($value);
 663
 664                         $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
 665                         if ($value != "")
 666                                 $contact["location"] = $value;
 667
 668                         if (($contact["name"] != $r[0]["name"]) || ($contact["nick"] != $r[0]["nick"]) || ($contact["about"] != $r[0]["about"]) ||
 669                                 ($contact["alias"] != $r[0]["alias"]) || ($contact["location"] != $r[0]["location"])) {
 670
 671                                 logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 672
 673                                 q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `alias` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
 674                                         dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["alias"]),
 675                                         dbesc($contact["about"]), dbesc($contact["location"]),
 676                                         dbesc(datetime_convert()), intval($contact["id"]));
 677                         }
 678
 679                         if (isset($author["author-avatar"]) && ($author["author-avatar"] != $r[0]['avatar'])) {
 680                                 logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
 681
 682                                 update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
 683                         }
 684
 685                         // Ensure that we are having this contact (with uid=0)
 686                         $cid = get_contact($author["author-link"], 0);
 687
 688                         if ($cid) {
 689                                 // Update it with the current values
 690                                 q("UPDATE `contact` SET `url` = '%s', `name` = '%s', `nick` = '%s', `alias` = '%s',
 691                                                 `about` = '%s', `location` = '%s',
 692                                                 `success_update` = '%s', `last-update` = '%s'
 693                                         WHERE `id` = %d",
 694                                         dbesc($author["author-link"]), dbesc($contact["name"]), dbesc($contact["nick"]),
 695                                         dbesc($contact["alias"]), dbesc($contact["about"]), dbesc($contact["location"]),
 696                                         dbesc(datetime_convert()), dbesc(datetime_convert()), intval($cid));
 697
 698                                 // Update the avatar
 699                                 update_contact_avatar($author["author-avatar"], 0, $cid);
 700                         }
 701
 702                         $contact["generation"] = 2;
 703                         $contact["hide"] = false; // OStatus contacts are never hidden
 704                         $contact["photo"] = $author["author-avatar"];
 705                         $gcid = update_gcontact($contact);
 706
 707                         link_gcontact($gcid, $contact["uid"], $contact["id"]);
 708                 }
 709
 710                 return $author;
 711         }
 712
 713         /**
 714          * @brief Fetches author data from a given XML string
 715          *
 716          * @param string $xml The XML
 717          * @param array $importer user record of the importing user
 718          *
 719          * @return array Array of author related entries for the item
 720          */
 721         public static function salmon_author($xml, $importer) {
 722
 723                 if ($xml == "")
 724                         return;
 725
 726                 $doc = new DOMDocument();
 727                 @$doc->loadXML($xml);
 728
 729                 $xpath = new DomXPath($doc);
 730                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 731                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 732                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 733                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 734                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 735                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 736                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 737                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 738
 739                 $entries = $xpath->query('/atom:entry');
 740
 741                 foreach ($entries AS $entry) {
 742                         // fetch the author
 743                         $author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
 744                         return $author;
 745                 }
 746         }
 747
 748         /**
 749          * @brief Read attributes from element
 750          *
 751          * @param object $element Element object
 752          *
 753          * @return array attributes
 754          */
 755         private static function read_attributes($element) {
 756                 $attribute = array();
 757
 758                 foreach ($element->attributes AS $attributes) {
 759                         $attribute[$attributes->name] = $attributes->textContent;
 760                 }
 761
 762                 return $attribute;
 763         }
 764
 765         /**
 766          * @brief Checks if the current post is a reshare
 767          *
 768          * @param array $item The item array of thw post
 769          *
 770          * @return string The guid if the post is a reshare
 771          */
 772         private static function get_reshared_guid($item) {
 773                 $body = trim($item["body"]);
 774
 775                 // Skip if it isn't a pure repeated messages
 776                 // Does it start with a share?
 777                 if (strpos($body, "[share") > 0)
 778                         return "";
 779
 780                 // Does it end with a share?
 781                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
 782                         return "";
 783
 784                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
 785                 // Skip if there is no shared message in there
 786                 if ($body == $attributes)
 787                         return false;
 788
 789                 $guid = "";
 790                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
 791                 if ($matches[1] != "")
 792                         $guid = $matches[1];
 793
 794                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
 795                 if ($matches[1] != "")
 796                         $guid = $matches[1];
 797
 798                 return $guid;
 799         }
 800
 801         /**
 802          * @brief Cleans the body of a post if it contains picture links
 803          *
 804          * @param string $body The body
 805          *
 806          * @return string The cleaned body
 807          */
 808         private static function format_picture_post($body) {
 809                 $siteinfo = get_attached_data($body);
 810
 811                 if (($siteinfo["type"] == "photo")) {
 812                         if (isset($siteinfo["preview"]))
 813                                 $preview = $siteinfo["preview"];
 814                         else
 815                                 $preview = $siteinfo["image"];
 816
 817                         // Is it a remote picture? Then make a smaller preview here
 818                         $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
 819
 820                         // Is it a local picture? Then make it smaller here
 821                         $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
 822                         $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
 823
 824                         if (isset($siteinfo["url"]))
 825                                 $url = $siteinfo["url"];
 826                         else
 827                                 $url = $siteinfo["image"];
 828
 829                         $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
 830                 }
 831
 832                 return $body;
 833         }
 834
 835         /**
 836          * @brief Adds the header elements to the XML document
 837          *
 838          * @param object $doc XML document
 839          * @param array $owner Contact data of the poster
 840          *
 841          * @return object header root element
 842          */
 843         private static function add_header($doc, $owner) {
 844
 845                 $a = get_app();
 846
 847                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
 848                 $doc->appendChild($root);
 849
 850                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
 851                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
 852                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
 853                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
 854                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
 855                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
 856                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
 857                 $root->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
 858
 859                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
 860                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
 861                 xml::add_element($doc, $root, "id", System::baseUrl()."/profile/".$owner["nick"]);
 862                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
 863                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
 864                 xml::add_element($doc, $root, "logo", $owner["photo"]);
 865                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
 866
 867                 $author = self::add_author($doc, $owner);
 868                 $root->appendChild($author);
 869
 870                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
 871                 xml::add_element($doc, $root, "link", "", $attributes);
 872
 873                 /// @TODO We have to find out what this is
 874                 /// $attributes = array("href" => System::baseUrl()."/sup",
 875                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
 876                 ///             "type" => "application/json");
 877                 /// xml::add_element($doc, $root, "link", "", $attributes);
 878
 879                 self::hublinks($doc, $root, $owner["nick"]);
 880
 881                 $attributes = array("href" => System::baseUrl()."/salmon/".$owner["nick"], "rel" => "salmon");
 882                 xml::add_element($doc, $root, "link", "", $attributes);
 883
 884                 $attributes = array("href" => System::baseUrl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
 885                 xml::add_element($doc, $root, "link", "", $attributes);
 886
 887                 $attributes = array("href" => System::baseUrl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
 888                 xml::add_element($doc, $root, "link", "", $attributes);
 889
 890                 $attributes = array("href" => System::baseUrl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
 891                                 "rel" => "self", "type" => "application/atom+xml");
 892                 xml::add_element($doc, $root, "link", "", $attributes);
 893
 894                 return $root;
 895         }
 896
 897         /**
 898          * @brief Add the link to the push hubs to the XML document
 899          *
 900          * @param object $doc XML document
 901          * @param object $root XML root element where the hub links are added
 902          */
 903         public static function hublinks($doc, $root, $nick) {
 904                 $h = System::baseUrl() . '/pubsubhubbub/'.$nick;
 905                 xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
 906         }
 907
 908         /**
 909          * @brief Adds attachement data to the XML document
 910          *
 911          * @param object $doc XML document
 912          * @param object $root XML root element where the hub links are added
 913          * @param array $item Data of the item that is to be posted
 914          */
 915         private static function get_attachment($doc, $root, $item) {
 916                 $o = "";
 917                 $siteinfo = get_attached_data($item["body"]);
 918
 919                 switch ($siteinfo["type"]) {
 920                         case 'photo':
 921                                 $imgdata = get_photo_info($siteinfo["image"]);
 922                                 $attributes = array("rel" => "enclosure",
 923                                                 "href" => $siteinfo["image"],
 924                                                 "type" => $imgdata["mime"],
 925                                                 "length" => intval($imgdata["size"]));
 926                                 xml::add_element($doc, $root, "link", "", $attributes);
 927                                 break;
 928                         case 'video':
 929                                 $attributes = array("rel" => "enclosure",
 930                                                 "href" => $siteinfo["url"],
 931                                                 "type" => "text/html; charset=UTF-8",
 932                                                 "length" => "",
 933                                                 "title" => $siteinfo["title"]);
 934                                 xml::add_element($doc, $root, "link", "", $attributes);
 935                                 break;
 936                         default:
 937                                 break;
 938                 }
 939
 940                 if (!Config::get('system', 'ostatus_not_attach_preview') && ($siteinfo["type"] != "photo") && isset($siteinfo["image"])) {
 941                         $imgdata = get_photo_info($siteinfo["image"]);
 942                         $attributes = array("rel" => "enclosure",
 943                                         "href" => $siteinfo["image"],
 944                                         "type" => $imgdata["mime"],
 945                                         "length" => intval($imgdata["size"]));
 946
 947                         xml::add_element($doc, $root, "link", "", $attributes);
 948                 }
 949
 950                 $arr = explode('[/attach],', $item['attach']);
 951                 if (count($arr)) {
 952                         foreach ($arr as $r) {
 953                                 $matches = false;
 954                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|', $r, $matches);
 955                                 if ($cnt) {
 956                                         $attributes = array("rel" => "enclosure",
 957                                                         "href" => $matches[1],
 958                                                         "type" => $matches[3]);
 959
 960                                         if (intval($matches[2])) {
 961                                                 $attributes["length"] = intval($matches[2]);
 962                                         }
 963                                         if (trim($matches[4]) != "") {
 964                                                 $attributes["title"] = trim($matches[4]);
 965                                         }
 966                                         xml::add_element($doc, $root, "link", "", $attributes);
 967                                 }
 968                         }
 969                 }
 970         }
 971
 972         /**
 973          * @brief Adds the author element to the XML document
 974          *
 975          * @param object $doc XML document
 976          * @param array $owner Contact data of the poster
 977          *
 978          * @return object author element
 979          */
 980         private static function add_author($doc, $owner) {
 981
 982                 $r = q("SELECT `homepage`, `publish` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
 983                 if (dbm::is_result($r)) {
 984                         $profile = $r[0];
 985                 }
 986                 $author = $doc->createElement("author");
 987                 xml::add_element($doc, $author, "id", $owner["url"]);
 988                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
 989                 xml::add_element($doc, $author, "uri", $owner["url"]);
 990                 xml::add_element($doc, $author, "name", $owner["nick"]);
 991                 xml::add_element($doc, $author, "email", $owner["addr"]);
 992                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
 993
 994                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
 995                 xml::add_element($doc, $author, "link", "", $attributes);
 996
 997                 $attributes = array(
 998                                 "rel" => "avatar",
 999                                 "type" => "image/jpeg", // To-Do?
1000                                 "media:width" => 175,
1001                                 "media:height" => 175,
1002                                 "href" => $owner["photo"]);
1003                 xml::add_element($doc, $author, "link", "", $attributes);
1004
1005                 if (isset($owner["thumb"])) {
1006                         $attributes = array(
1007                                         "rel" => "avatar",
1008                                         "type" => "image/jpeg", // To-Do?
1009                                         "media:width" => 80,
1010                                         "media:height" => 80,
1011                                         "href" => $owner["thumb"]);
1012                         xml::add_element($doc, $author, "link", "", $attributes);
1013                 }
1014
1015                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1016                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1017                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1018
1019                 if (trim($owner["location"]) != "") {
1020                         $element = $doc->createElement("poco:address");
1021                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1022                         $author->appendChild($element);
1023                 }
1024
1025                 if (trim($profile["homepage"]) != "") {
1026                         $urls = $doc->createElement("poco:urls");
1027                         xml::add_element($doc, $urls, "poco:type", "homepage");
1028                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1029                         xml::add_element($doc, $urls, "poco:primary", "true");
1030                         $author->appendChild($urls);
1031                 }
1032
1033                 if (count($profile)) {
1034                         xml::add_element($doc, $author, "followers", "", array("url" => System::baseUrl()."/viewcontacts/".$owner["nick"]));
1035                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1036                 }
1037
1038                 if ($profile["publish"]) {
1039                         xml::add_element($doc, $author, "mastodon:scope", "public");
1040                 }
1041                 return $author;
1042         }
1043
1044         /**
1045          * @TODO Picture attachments should look like this:
1046          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1047          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1048          *
1049         */
1050
1051         /**
1052          * @brief Returns the given activity if present - otherwise returns the "post" activity
1053          *
1054          * @param array $item Data of the item that is to be posted
1055          *
1056          * @return string activity
1057          */
1058         private static function construct_verb($item) {
1059                 if ($item['verb'])
1060                         return $item['verb'];
1061                 return ACTIVITY_POST;
1062         }
1063
1064         /**
1065          * @brief Returns the given object type if present - otherwise returns the "note" object type
1066          *
1067          * @param array $item Data of the item that is to be posted
1068          *
1069          * @return string Object type
1070          */
1071         private static function construct_objecttype($item) {
1072                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1073                         return $item['object-type'];
1074                 return ACTIVITY_OBJ_NOTE;
1075         }
1076
1077         /**
1078          * @brief Adds an entry element to the XML document
1079          *
1080          * @param object $doc XML document
1081          * @param array $item Data of the item that is to be posted
1082          * @param array $owner Contact data of the poster
1083          * @param bool $toplevel
1084          *
1085          * @return object Entry element
1086          */
1087         private static function entry($doc, $item, $owner, $toplevel = false) {
1088                 $repeated_guid = self::get_reshared_guid($item);
1089                 if ($repeated_guid != "")
1090                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1091
1092                 if ($xml)
1093                         return $xml;
1094
1095                 if ($item["verb"] == ACTIVITY_LIKE) {
1096                         return self::like_entry($doc, $item, $owner, $toplevel);
1097                 } elseif (in_array($item["verb"], array(ACTIVITY_FOLLOW, NAMESPACE_OSTATUS."/unfollow"))) {
1098                         return self::follow_entry($doc, $item, $owner, $toplevel);
1099                 } else {
1100                         return self::note_entry($doc, $item, $owner, $toplevel);
1101                 }
1102         }
1103
1104         /**
1105          * @brief Adds a source entry to the XML document
1106          *
1107          * @param object $doc XML document
1108          * @param array $contact Array of the contact that is added
1109          *
1110          * @return object Source element
1111          */
1112         private static function source_entry($doc, $contact) {
1113                 $source = $doc->createElement("source");
1114                 xml::add_element($doc, $source, "id", $contact["poll"]);
1115                 xml::add_element($doc, $source, "title", $contact["name"]);
1116                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1117                                                                 "type" => "text/html",
1118                                                                 "href" => $contact["alias"]));
1119                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1120                                                                 "type" => "application/atom+xml",
1121                                                                 "href" => $contact["poll"]));
1122                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1123                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1124
1125                 return $source;
1126         }
1127
1128         /**
1129          * @brief Fetches contact data from the contact or the gcontact table
1130          *
1131          * @param string $url URL of the contact
1132          * @param array $owner Contact data of the poster
1133          *
1134          * @return array Contact array
1135          */
1136         private static function contact_entry($url, $owner) {
1137
1138                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1139                         dbesc(normalise_link($url)), intval($owner["uid"]));
1140                 if (dbm::is_result($r)) {
1141                         $contact = $r[0];
1142                         $contact["uid"] = -1;
1143                 }
1144
1145                 if (!dbm::is_result($r)) {
1146                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1147                                 dbesc(normalise_link($url)));
1148                         if (dbm::is_result($r)) {
1149                                 $contact = $r[0];
1150                                 $contact["uid"] = -1;
1151                                 $contact["success_update"] = $contact["updated"];
1152                         }
1153                 }
1154
1155                 if (!dbm::is_result($r))
1156                         $contact = owner;
1157
1158                 if (!isset($contact["poll"])) {
1159                         $data = probe_url($url);
1160                         $contact["poll"] = $data["poll"];
1161
1162                         if (!$contact["alias"])
1163                                 $contact["alias"] = $data["alias"];
1164                 }
1165
1166                 if (!isset($contact["alias"]))
1167                         $contact["alias"] = $contact["url"];
1168
1169                 return $contact;
1170         }
1171
1172         /**
1173          * @brief Adds an entry element with reshared content
1174          *
1175          * @param object $doc XML document
1176          * @param array $item Data of the item that is to be posted
1177          * @param array $owner Contact data of the poster
1178          * @param $repeated_guid
1179          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1180          *
1181          * @return object Entry element
1182          */
1183         private static function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1184
1185                 if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1186                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1187                 }
1188
1189                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1190
1191                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1192                         intval($owner["uid"]), dbesc($repeated_guid),
1193                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1194                 if (dbm::is_result($r)) {
1195                         $repeated_item = $r[0];
1196                 } else {
1197                         return false;
1198                 }
1199                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1200
1201                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1202
1203                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1204
1205                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1206
1207                 $as_object = $doc->createElement("activity:object");
1208
1209                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1210
1211                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1212
1213                 $author = self::add_author($doc, $contact);
1214                 $as_object->appendChild($author);
1215
1216                 $as_object2 = $doc->createElement("activity:object");
1217
1218                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1219
1220                 $title = sprintf("New comment by %s", $contact["nick"]);
1221
1222                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1223
1224                 $as_object->appendChild($as_object2);
1225
1226                 self::entry_footer($doc, $as_object, $item, $owner, false);
1227
1228                 $source = self::source_entry($doc, $contact);
1229
1230                 $as_object->appendChild($source);
1231
1232                 $entry->appendChild($as_object);
1233
1234                 self::entry_footer($doc, $entry, $item, $owner);
1235
1236                 return $entry;
1237         }
1238
1239         /**
1240          * @brief Adds an entry element with a "like"
1241          *
1242          * @param object $doc XML document
1243          * @param array $item Data of the item that is to be posted
1244          * @param array $owner Contact data of the poster
1245          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1246          *
1247          * @return object Entry element with "like"
1248          */
1249         private static function like_entry($doc, $item, $owner, $toplevel) {
1250
1251                 if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1252                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1253                 }
1254
1255                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1256
1257                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1258                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1259
1260                 $as_object = $doc->createElement("activity:object");
1261
1262                 $parent = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
1263                         dbesc($item["thr-parent"]), intval($item["uid"]));
1264                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1265
1266                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1267
1268                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1269
1270                 $entry->appendChild($as_object);
1271
1272                 self::entry_footer($doc, $entry, $item, $owner);
1273
1274                 return $entry;
1275         }
1276
1277         /**
1278          * @brief Adds the person object element to the XML document
1279          *
1280          * @param object $doc XML document
1281          * @param array $owner Contact data of the poster
1282          * @param array $contact Contact data of the target
1283          *
1284          * @return object author element
1285          */
1286         private static function add_person_object($doc, $owner, $contact) {
1287
1288                 $object = $doc->createElement("activity:object");
1289                 xml::add_element($doc, $object, "activity:object-type", ACTIVITY_OBJ_PERSON);
1290
1291                 if ($contact['network'] == NETWORK_PHANTOM) {
1292                         xml::add_element($doc, $object, "id", $contact['url']);
1293                         return $object;
1294                 }
1295
1296                 xml::add_element($doc, $object, "id", $contact["alias"]);
1297                 xml::add_element($doc, $object, "title", $contact["nick"]);
1298
1299                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $contact["url"]);
1300                 xml::add_element($doc, $object, "link", "", $attributes);
1301
1302                 $attributes = array(
1303                                 "rel" => "avatar",
1304                                 "type" => "image/jpeg", // To-Do?
1305                                 "media:width" => 175,
1306                                 "media:height" => 175,
1307                                 "href" => $contact["photo"]);
1308                 xml::add_element($doc, $object, "link", "", $attributes);
1309
1310                 xml::add_element($doc, $object, "poco:preferredUsername", $contact["nick"]);
1311                 xml::add_element($doc, $object, "poco:displayName", $contact["name"]);
1312
1313                 if (trim($contact["location"]) != "") {
1314                         $element = $doc->createElement("poco:address");
1315                         xml::add_element($doc, $element, "poco:formatted", $contact["location"]);
1316                         $object->appendChild($element);
1317                 }
1318
1319                 return $object;
1320         }
1321
1322         /**
1323          * @brief Adds a follow/unfollow entry element
1324          *
1325          * @param object $doc XML document
1326          * @param array $item Data of the follow/unfollow message
1327          * @param array $owner Contact data of the poster
1328          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1329          *
1330          * @return object Entry element
1331          */
1332         private static function follow_entry($doc, $item, $owner, $toplevel) {
1333
1334                 $item["id"] = $item["parent"] = 0;
1335                 $item["created"] = $item["edited"] = date("c");
1336                 $item["private"] = true;
1337
1338                 $contact = Probe::uri($item['follow']);
1339
1340                 if ($contact['alias'] == '') {
1341                         $contact['alias'] = $contact["url"];
1342                 } else {
1343                         $item['follow'] = $contact['alias'];
1344                 }
1345
1346                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1347                         intval($owner['uid']), dbesc(normalise_link($contact["url"])));
1348
1349                 if (dbm::is_result($r)) {
1350                         $connect_id = $r[0]['id'];
1351                 } else {
1352                         $connect_id = 0;
1353                 }
1354
1355                 if ($item['verb'] == ACTIVITY_FOLLOW) {
1356                         $message = t('%s is now following %s.');
1357                         $title = t('following');
1358                         $action = "subscription";
1359                 } else {
1360                         $message = t('%s stopped following %s.');
1361                         $title = t('stopped following');
1362                         $action = "unfollow";
1363                 }
1364
1365                 $item["uri"] = $item['parent-uri'] = $item['thr-parent'] =
1366                                 'tag:'.get_app()->get_hostname().
1367                                 ','.date('Y-m-d').':'.$action.':'.$owner['uid'].
1368                                 ':person:'.$connect_id.':'.$item['created'];
1369
1370                 $item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
1371
1372                 self::entry_header($doc, $entry, $owner, $toplevel);
1373
1374                 self::entry_content($doc, $entry, $item, $owner, $title);
1375
1376                 $object = self::add_person_object($doc, $owner, $contact);
1377                 $entry->appendChild($object);
1378
1379                 self::entry_footer($doc, $entry, $item, $owner);
1380
1381                 return $entry;
1382         }
1383
1384         /**
1385          * @brief Adds a regular entry element
1386          *
1387          * @param object $doc XML document
1388          * @param array $item Data of the item that is to be posted
1389          * @param array $owner Contact data of the poster
1390          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1391          *
1392          * @return object Entry element
1393          */
1394         private static function note_entry($doc, $item, $owner, $toplevel) {
1395
1396                 if (($item["id"] != $item["parent"]) && (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1397                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1398                 }
1399
1400                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1401
1402                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1403
1404                 self::entry_content($doc, $entry, $item, $owner, $title);
1405
1406                 self::entry_footer($doc, $entry, $item, $owner);
1407
1408                 return $entry;
1409         }
1410
1411         /**
1412          * @brief Adds a header element to the XML document
1413          *
1414          * @param object $doc XML document
1415          * @param object $entry The entry element where the elements are added
1416          * @param array $owner Contact data of the poster
1417          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1418          *
1419          * @return string The title for the element
1420          */
1421         private static function entry_header($doc, &$entry, $owner, $toplevel) {
1422                 /// @todo Check if this title stuff is really needed (I guess not)
1423                 if (!$toplevel) {
1424                         $entry = $doc->createElement("entry");
1425                         $title = sprintf("New note by %s", $owner["nick"]);
1426                 } else {
1427                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1428
1429                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1430                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1431                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1432                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1433                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1434                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1435                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1436                         $entry->setAttribute("xmlns:mastodon", NAMESPACE_MASTODON);
1437
1438                         $author = self::add_author($doc, $owner);
1439                         $entry->appendChild($author);
1440
1441                         $title = sprintf("New comment by %s", $owner["nick"]);
1442                 }
1443                 return $title;
1444         }
1445
1446         /**
1447          * @brief Adds elements to the XML document
1448          *
1449          * @param object $doc XML document
1450          * @param object $entry Entry element where the content is added
1451          * @param array $item Data of the item that is to be posted
1452          * @param array $owner Contact data of the poster
1453          * @param string $title Title for the post
1454          * @param string $verb The activity verb
1455          * @param bool $complete Add the "status_net" element?
1456          */
1457         private static function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
1458
1459                 if ($verb == "")
1460                         $verb = self::construct_verb($item);
1461
1462                 xml::add_element($doc, $entry, "id", $item["uri"]);
1463                 xml::add_element($doc, $entry, "title", $title);
1464
1465                 $body = self::format_picture_post($item['body']);
1466
1467                 if ($item['title'] != "")
1468                         $body = "[b]".$item['title']."[/b]\n\n".$body;
1469
1470                 $body = bbcode($body, false, false, 7);
1471
1472                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
1473
1474                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1475                                                                 "href" => System::baseUrl()."/display/".$item["guid"]));
1476
1477                 if ($complete && ($item["id"] > 0))
1478                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1479
1480                 xml::add_element($doc, $entry, "activity:verb", $verb);
1481
1482                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1483                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1484         }
1485
1486         /**
1487          * @brief Adds the elements at the foot of an entry to the XML document
1488          *
1489          * @param object $doc XML document
1490          * @param object $entry The entry element where the elements are added
1491          * @param array $item Data of the item that is to be posted
1492          * @param array $owner Contact data of the poster
1493          * @param $complete
1494          */
1495         private static function entry_footer($doc, $entry, $item, $owner, $complete = true) {
1496
1497                 $mentioned = array();
1498
1499                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1500                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1501                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1502
1503                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link`, `plink` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
1504                                         intval($owner["uid"]),
1505                                         dbesc($parent_item));
1506                         if ($thrparent) {
1507                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
1508                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
1509                                 $parent_plink = $thrparent[0]["plink"];
1510                         } else {
1511                                 $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1512                                 $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1513                                 $parent_plink = System::baseUrl()."/display/".$parent[0]["guid"];
1514                         }
1515
1516                         $attributes = array(
1517                                         "ref" => $parent_item,
1518                                         "href" => $parent_plink);
1519                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1520
1521                         $attributes = array(
1522                                         "rel" => "related",
1523                                         "href" => $parent_plink);
1524                         xml::add_element($doc, $entry, "link", "", $attributes);
1525                 }
1526
1527                 if (intval($item["parent"]) > 0) {
1528                         $conversation_href = System::baseUrl()."/display/".$owner["nick"]."/".$item["parent"];
1529                         $conversation_uri = $conversation_href;
1530
1531                         if (isset($parent_item)) {
1532                                 $r = dba::fetch_first("SELECT `conversation-uri`, `conversation-href` FROM `conversation` WHERE `item-uri` = ?", $parent_item);
1533                                 if (dbm::is_result($r)) {
1534                                         if ($r['conversation-uri'] != '') {
1535                                                 $conversation_uri = $r['conversation-uri'];
1536                                         }
1537                                         if ($r['conversation-href'] != '') {
1538                                                 $conversation_href = $r['conversation-href'];
1539                                         }
1540                                 }
1541                         }
1542
1543                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation", "href" => $conversation_href));
1544
1545                         $attributes = array(
1546                                         "href" => $conversation_href,
1547                                         "local_id" => $item["parent"],
1548                                         "ref" => $conversation_uri);
1549
1550                         xml::add_element($doc, $entry, "ostatus:conversation", $conversation_uri, $attributes);
1551                 }
1552
1553                 $tags = item_getfeedtags($item);
1554
1555                 if (count($tags))
1556                         foreach ($tags as $t)
1557                                 if ($t[0] == "@")
1558                                         $mentioned[$t[1]] = $t[1];
1559
1560                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1561                 $newmentions = array();
1562                 foreach ($mentioned AS $mention) {
1563                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
1564                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
1565                 }
1566                 $mentioned = $newmentions;
1567
1568                 foreach ($mentioned AS $mention) {
1569                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1570                                 intval($owner["uid"]),
1571                                 dbesc(normalise_link($mention)));
1572                         if ($r[0]["forum"] || $r[0]["prv"])
1573                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1574                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
1575                                                                                         "href" => $mention));
1576                         else
1577                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1578                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
1579                                                                                         "href" => $mention));
1580                 }
1581
1582                 if (!$item["private"]) {
1583                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
1584                                                                         "href" => "http://activityschema.org/collection/public"));
1585                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1586                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
1587                                                                         "href" => "http://activityschema.org/collection/public"));
1588                         xml::add_element($doc, $entry, "mastodon:scope", "public");
1589                 }
1590
1591                 if (count($tags))
1592                         foreach ($tags as $t)
1593                                 if ($t[0] != "@")
1594                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
1595
1596                 self::get_attachment($doc, $entry, $item);
1597
1598                 if ($complete && ($item["id"] > 0)) {
1599                         $app = $item["app"];
1600                         if ($app == "")
1601                                 $app = "web";
1602
1603                         $attributes = array("local_id" => $item["id"], "source" => $app);
1604
1605                         if (isset($parent["id"]))
1606                                 $attributes["repeat_of"] = $parent["id"];
1607
1608                         if ($item["coord"] != "")
1609                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
1610
1611                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
1612                 }
1613         }
1614
1615         /**
1616          * @brief Creates the XML feed for a given nickname
1617          *
1618          * @param App $a The application class
1619          * @param string $owner_nick Nickname of the feed owner
1620          * @param string $last_update Date of the last update
1621          * @param integer $max_items Number of maximum items to fetch
1622          *
1623          * @return string XML feed
1624          */
1625         public static function feed(App $a, $owner_nick, &$last_update, $max_items = 300) {
1626                 $stamp = microtime(true);
1627
1628                 $cachekey = "ostatus:feed:".$owner_nick.":".$last_update;
1629
1630                 $previous_created = $last_update;
1631
1632                 $result = Cache::get($cachekey);
1633                 if (!is_null($result)) {
1634                         logger('Feed duration: '.number_format(microtime(true) - $stamp, 3).' - '.$owner_nick.' - '.$previous_created.' (cached)', LOGGER_DEBUG);
1635                         $last_update = $result['last_update'];
1636                         return $result['feed'];
1637                 }
1638
1639                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
1640                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
1641                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
1642                                 dbesc($owner_nick));
1643                 if (!dbm::is_result($r)) {
1644                         return;
1645                 }
1646
1647                 $owner = $r[0];
1648
1649                 if (!strlen($last_update)) {
1650                         $last_update = 'now -30 days';
1651                 }
1652
1653                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
1654                 $authorid = get_contact($owner["url"], 0);
1655
1656                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
1657                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1658                                 WHERE `item`.`uid` = %d AND `item`.`contact-id` = %d AND
1659                                         `item`.`author-id` = %d AND `item`.`created` > '%s' AND
1660                                         NOT `item`.`deleted` AND NOT `item`.`private` AND
1661                                         `thread`.`network` IN ('%s', '%s')
1662                                 ORDER BY `item`.`created` DESC LIMIT %d",
1663                                 intval($owner["uid"]), intval($owner["id"]),
1664                                 intval($authorid), dbesc($check_date),
1665                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN), intval($max_items));
1666
1667                 $doc = new DOMDocument('1.0', 'utf-8');
1668                 $doc->formatOutput = true;
1669
1670                 $root = self::add_header($doc, $owner);
1671
1672                 foreach ($items AS $item) {
1673                         if (Config::get('system', 'ostatus_debug')) {
1674                                 $item['body'] .= '🍼';
1675                         }
1676                         $entry = self::entry($doc, $item, $owner);
1677                         $root->appendChild($entry);
1678
1679                         if ($last_update < $item['created']) {
1680                                 $last_update = $item['created'];
1681                         }
1682                 }
1683
1684                 $feeddata = trim($doc->saveXML());
1685
1686                 $msg = array('feed' => $feeddata, 'last_update' => $last_update);
1687                 Cache::set($cachekey, $msg, CACHE_QUARTER_HOUR);
1688
1689                 logger('Feed duration: '.number_format(microtime(true) - $stamp, 3).' - '.$owner_nick.' - '.$previous_created, LOGGER_DEBUG);
1690
1691                 return $feeddata;
1692         }
1693
1694         /**
1695          * @brief Creates the XML for a salmon message
1696          *
1697          * @param array $item Data of the item that is to be posted
1698          * @param array $owner Contact data of the poster
1699          *
1700          * @return string XML for the salmon
1701          */
1702         public static function salmon($item,$owner) {
1703
1704                 $doc = new DOMDocument('1.0', 'utf-8');
1705                 $doc->formatOutput = true;
1706
1707                 if (Config::get('system', 'ostatus_debug')) {
1708                         $item['body'] .= '🐟';
1709                 }
1710
1711                 $entry = self::entry($doc, $item, $owner, true);
1712
1713                 $doc->appendChild($entry);
1714
1715                 return trim($doc->saveXML());
1716         }
1717 }