include/ostatus.php

   1 <?php
   2 /**
   3  * @file include/ostatus.php
   4  */
   5
   6 require_once("include/Contact.php");
   7 require_once("include/threads.php");
   8 require_once("include/html2bbcode.php");
   9 require_once("include/bbcode.php");
  10 require_once("include/items.php");
  11 require_once("mod/share.php");
  12 require_once("include/enotify.php");
  13 require_once("include/socgraph.php");
  14 require_once("include/Photo.php");
  15 require_once("include/Scrape.php");
  16 require_once("include/follow.php");
  17 require_once("include/api.php");
  18 require_once("mod/proxy.php");
  19 require_once("include/xml.php");
  20
  21 /**
  22  * @brief This class contain functions for the OStatus protocol
  23  *
  24  */
  25 class ostatus {
  26         const OSTATUS_DEFAULT_POLL_INTERVAL = 30; // given in minutes
  27         const OSTATUS_DEFAULT_POLL_TIMEFRAME = 1440; // given in minutes
  28         const OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS = 14400; // given in minutes
  29
  30         /**
  31          * @brief
  32          *
  33          * @param $xpath
  34          * @param $context
  35          * @param $importer
  36          * @param $contact
  37          * @param $onlyfetch
  38          *
  39          * @return
  40          */
  41         private function fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch) {
  42
  43                 $author = array();
  44                 $author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
  45                 $author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
  46
  47                 // Preserve the value
  48                 $authorlink = $author["author-link"];
  49
  50                 $alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
  51                 if (is_object($alternate))
  52                         foreach($alternate AS $attributes)
  53                                 if ($attributes->name == "href")
  54                                         $author["author-link"] = $attributes->textContent;
  55
  56                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` IN ('%s', '%s') AND `network` != '%s'",
  57                         intval($importer["uid"]), dbesc(normalise_link($author["author-link"])),
  58                         dbesc(normalise_link($authorlink)), dbesc(NETWORK_STATUSNET));
  59                 if ($r) {
  60                         $contact = $r[0];
  61                         $author["contact-id"] = $r[0]["id"];
  62                 } else
  63                         $author["contact-id"] = $contact["id"];
  64
  65                 $avatarlist = array();
  66                 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
  67                 foreach($avatars AS $avatar) {
  68                         $href = "";
  69                         $width = 0;
  70                         foreach($avatar->attributes AS $attributes) {
  71                                 if ($attributes->name == "href")
  72                                         $href = $attributes->textContent;
  73                                 if ($attributes->name == "width")
  74                                         $width = $attributes->textContent;
  75                         }
  76                         if (($width > 0) AND ($href != ""))
  77                                 $avatarlist[$width] = $href;
  78                 }
  79                 if (count($avatarlist) > 0) {
  80                         krsort($avatarlist);
  81                         $author["author-avatar"] = current($avatarlist);
  82                 }
  83
  84                 $displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
  85                 if ($displayname != "")
  86                         $author["author-name"] = $displayname;
  87
  88                 $author["owner-name"] = $author["author-name"];
  89                 $author["owner-link"] = $author["author-link"];
  90                 $author["owner-avatar"] = $author["author-avatar"];
  91
  92                 // Only update the contacts if it is an OStatus contact
  93                 if ($r AND !$onlyfetch AND ($contact["network"] == NETWORK_OSTATUS)) {
  94                         // Update contact data
  95
  96                         $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
  97                         if ($value != "")
  98                                 $contact["notify"] = $value;
  99
 100                         $value = $xpath->evaluate('atom:author/uri/text()', $context)->item(0)->nodeValue;
 101                         if ($value != "")
 102                                 $contact["alias"] = $value;
 103
 104                         $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 105                         if ($value != "")
 106                                 $contact["name"] = $value;
 107
 108                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 109                         if ($value != "")
 110                                 $contact["nick"] = $value;
 111
 112                         $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
 113                         if ($value != "")
 114                                 $contact["about"] = html2bbcode($value);
 115
 116                         $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
 117                         if ($value != "")
 118                                 $contact["location"] = $value;
 119
 120                         if (($contact["name"] != $r[0]["name"]) OR ($contact["nick"] != $r[0]["nick"]) OR ($contact["about"] != $r[0]["about"]) OR ($contact["location"] != $r[0]["location"])) {
 121
 122                                 logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 123
 124                                 q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
 125                                         dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["about"]), dbesc($contact["location"]),
 126                                         dbesc(datetime_convert()), intval($contact["id"]));
 127
 128                                 poco_check($contact["url"], $contact["name"], $contact["network"], $author["author-avatar"], $contact["about"], $contact["location"],
 129                                                         "", "", "", datetime_convert(), 2, $contact["id"], $contact["uid"]);
 130                         }
 131
 132                         if (isset($author["author-avatar"]) AND ($author["author-avatar"] != $r[0]['avatar'])) {
 133                                 logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
 134
 135                                 update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
 136                         }
 137
 138                         $contact["generation"] = 2;
 139                         $contact["photo"] = $author["author-avatar"];
 140                         update_gcontact($contact);
 141                 }
 142
 143                 return($author);
 144         }
 145
 146         /**
 147          * @brief
 148          *
 149          * @param $xml
 150          * @param $importer
 151          *
 152          * @return
 153          */
 154         public static function salmon_author($xml, $importer) {
 155
 156                 if ($xml == "")
 157                         return;
 158
 159                 $doc = new DOMDocument();
 160                 @$doc->loadXML($xml);
 161
 162                 $xpath = new DomXPath($doc);
 163                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 164                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 165                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 166                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 167                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 168                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 169                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 170                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 171
 172                 $entries = $xpath->query('/atom:entry');
 173
 174                 foreach ($entries AS $entry) {
 175                         // fetch the author
 176                         $author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
 177                         return $author;
 178                 }
 179         }
 180
 181         /**
 182          * @brief
 183          *
 184          * @param $xml
 185          * @param $importer
 186          * @param $contact
 187          * @param $hub
 188          *
 189          * @return
 190          */
 191         public static function import($xml,$importer,&$contact, &$hub) {
 192
 193                 logger("Import OStatus message", LOGGER_DEBUG);
 194
 195                 if ($xml == "")
 196                         return;
 197
 198                 //$tempfile = tempnam(get_temppath(), "import");
 199                 //file_put_contents($tempfile, $xml);
 200
 201                 $doc = new DOMDocument();
 202                 @$doc->loadXML($xml);
 203
 204                 $xpath = new DomXPath($doc);
 205                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 206                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 207                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 208                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 209                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 210                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 211                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 212                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 213
 214                 $gub = "";
 215                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
 216                 if (is_object($hub_attributes))
 217                         foreach($hub_attributes AS $hub_attribute)
 218                                 if ($hub_attribute->name == "href") {
 219                                         $hub = $hub_attribute->textContent;
 220                                         logger("Found hub ".$hub, LOGGER_DEBUG);
 221                                 }
 222
 223                 $header = array();
 224                 $header["uid"] = $importer["uid"];
 225                 $header["network"] = NETWORK_OSTATUS;
 226                 $header["type"] = "remote";
 227                 $header["wall"] = 0;
 228                 $header["origin"] = 0;
 229                 $header["gravity"] = GRAVITY_PARENT;
 230
 231                 // it could either be a received post or a post we fetched by ourselves
 232                 // depending on that, the first node is different
 233                 $first_child = $doc->firstChild->tagName;
 234
 235                 if ($first_child == "feed")
 236                         $entries = $xpath->query('/atom:feed/atom:entry');
 237                 else
 238                         $entries = $xpath->query('/atom:entry');
 239
 240                 $conversation = "";
 241                 $conversationlist = array();
 242                 $item_id = 0;
 243
 244                 // Reverse the order of the entries
 245                 $entrylist = array();
 246
 247                 foreach ($entries AS $entry)
 248                         $entrylist[] = $entry;
 249
 250                 foreach (array_reverse($entrylist) AS $entry) {
 251
 252                         $mention = false;
 253
 254                         // fetch the author
 255                         if ($first_child == "feed")
 256                                 $author = self::fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
 257                         else
 258                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, false);
 259
 260                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 261                         if ($value != "")
 262                                 $nickname = $value;
 263                         else
 264                                 $nickname = $author["author-name"];
 265
 266                         $item = array_merge($header, $author);
 267
 268                         // Now get the item
 269                         $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 270
 271                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 272                                 intval($importer["uid"]), dbesc($item["uri"]));
 273                         if ($r) {
 274                                 logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
 275                                 continue;
 276                         }
 277
 278                         $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
 279                         $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 280
 281                         if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 282                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 283                                 $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 284                         } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION)
 285                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 286
 287                         $item["object"] = $xml;
 288                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 289
 290                         /// @TODO
 291                         /// Delete a message
 292                         if ($item["verb"] == "qvitter-delete-notice") {
 293                                 // ignore "Delete" messages (by now)
 294                                 logger("Ignore delete message ".print_r($item, true));
 295                                 continue;
 296                         }
 297
 298                         if ($item["verb"] == ACTIVITY_JOIN) {
 299                                 // ignore "Join" messages
 300                                 logger("Ignore join message ".print_r($item, true));
 301                                 continue;
 302                         }
 303
 304                         if ($item["verb"] == ACTIVITY_FOLLOW) {
 305                                 new_follower($importer, $contact, $item, $nickname);
 306                                 continue;
 307                         }
 308
 309                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 310                                 lose_follower($importer, $contact, $item, $dummy);
 311                                 continue;
 312                         }
 313
 314                         if ($item["verb"] == ACTIVITY_FAVORITE) {
 315                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 316                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
 317
 318                                 $item["verb"] = ACTIVITY_LIKE;
 319                                 $item["parent-uri"] = $orig_uri;
 320                                 $item["gravity"] = GRAVITY_LIKE;
 321                         }
 322
 323                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 324                                 // Ignore "Unfavorite" message
 325                                 logger("Ignore unfavorite message ".print_r($item, true));
 326                                 continue;
 327                         }
 328
 329                         // http://activitystrea.ms/schema/1.0/rsvp-yes
 330                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE)))
 331                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 332
 333                         $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 334                         $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 335                         $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 336
 337                         $related = "";
 338
 339                         $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 340                         if (is_object($inreplyto->item(0))) {
 341                                 foreach($inreplyto->item(0)->attributes AS $attributes) {
 342                                         if ($attributes->name == "ref")
 343                                                 $item["parent-uri"] = $attributes->textContent;
 344                                         if ($attributes->name == "href")
 345                                                 $related = $attributes->textContent;
 346                                 }
 347                         }
 348
 349                         $georsspoint = $xpath->query('georss:point', $entry);
 350                         if ($georsspoint)
 351                                 $item["coord"] = $georsspoint->item(0)->nodeValue;
 352
 353                         $categories = $xpath->query('atom:category', $entry);
 354                         if ($categories) {
 355                                 foreach ($categories AS $category) {
 356                                         foreach($category->attributes AS $attributes)
 357                                                 if ($attributes->name == "term") {
 358                                                         $term = $attributes->textContent;
 359                                                         if(strlen($item["tag"]))
 360                                                                 $item["tag"] .= ',';
 361                                                         $item["tag"] .= "#[url=".App::get_baseurl()."/search?tag=".$term."]".$term."[/url]";
 362                                                 }
 363                                 }
 364                         }
 365
 366                         $self = "";
 367                         $enclosure = "";
 368
 369                         $links = $xpath->query('atom:link', $entry);
 370                         if ($links) {
 371                                 $rel = "";
 372                                 $href = "";
 373                                 $type = "";
 374                                 $length = "0";
 375                                 $title = "";
 376                                 foreach ($links AS $link) {
 377                                         foreach($link->attributes AS $attributes) {
 378                                                 if ($attributes->name == "href")
 379                                                         $href = $attributes->textContent;
 380                                                 if ($attributes->name == "rel")
 381                                                         $rel = $attributes->textContent;
 382                                                 if ($attributes->name == "type")
 383                                                         $type = $attributes->textContent;
 384                                                 if ($attributes->name == "length")
 385                                                         $length = $attributes->textContent;
 386                                                 if ($attributes->name == "title")
 387                                                         $title = $attributes->textContent;
 388                                         }
 389                                         if (($rel != "") AND ($href != ""))
 390                                                 switch($rel) {
 391                                                         case "alternate":
 392                                                                 $item["plink"] = $href;
 393                                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
 394                                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT))
 395                                                                         $item["body"] .= add_page_info($href);
 396                                                                 break;
 397                                                         case "ostatus:conversation":
 398                                                                 $conversation = $href;
 399                                                                 break;
 400                                                         case "enclosure":
 401                                                                 $enclosure = $href;
 402                                                                 if(strlen($item["attach"]))
 403                                                                         $item["attach"] .= ',';
 404
 405                                                                 $item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'" title="'.$title.'"[/attach]';
 406                                                                 break;
 407                                                         case "related":
 408                                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 409                                                                         if (!isset($item["parent-uri"]))
 410                                                                                 $item["parent-uri"] = $href;
 411
 412                                                                         if ($related == "")
 413                                                                                 $related = $href;
 414                                                                 } else
 415                                                                         $item["body"] .= add_page_info($href);
 416                                                                 break;
 417                                                         case "self":
 418                                                                 $self = $href;
 419                                                                 break;
 420                                                         case "mentioned":
 421                                                                 // Notification check
 422                                                                 if ($importer["nurl"] == normalise_link($href))
 423                                                                         $mention = true;
 424                                                                 break;
 425                                                 }
 426                                 }
 427                         }
 428
 429                         $local_id = "";
 430                         $repeat_of = "";
 431
 432                         $notice_info = $xpath->query('statusnet:notice_info', $entry);
 433                         if ($notice_info AND ($notice_info->length > 0)) {
 434                                 foreach($notice_info->item(0)->attributes AS $attributes) {
 435                                         if ($attributes->name == "source")
 436                                                 $item["app"] = strip_tags($attributes->textContent);
 437                                         if ($attributes->name == "local_id")
 438                                                 $local_id = $attributes->textContent;
 439                                         if ($attributes->name == "repeat_of")
 440                                                 $repeat_of = $attributes->textContent;
 441                                 }
 442                         }
 443
 444                         // Is it a repeated post?
 445                         if ($repeat_of != "") {
 446                                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 447
 448                                 if (is_object($activityobjects)) {
 449
 450                                         $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
 451                                         if (!isset($orig_uri))
 452                                                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 453
 454                                         $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
 455                                         if ($orig_links AND ($orig_links->length > 0))
 456                                                 foreach($orig_links->item(0)->attributes AS $attributes)
 457                                                         if ($attributes->name == "href")
 458                                                                 $orig_link = $attributes->textContent;
 459
 460                                         if (!isset($orig_link))
 461                                                 $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
 462
 463                                         if (!isset($orig_link))
 464                                                 $orig_link =  self::convert_href($orig_uri);
 465
 466                                         $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
 467                                         if (!isset($orig_body))
 468                                                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 469
 470                                         $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 471
 472                                         $orig_contact = $contact;
 473                                         $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 474
 475                                         $item["author-name"] = $orig_author["author-name"];
 476                                         $item["author-link"] = $orig_author["author-link"];
 477                                         $item["author-avatar"] = $orig_author["author-avatar"];
 478                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
 479                                         $item["created"] = $orig_created;
 480
 481                                         $item["uri"] = $orig_uri;
 482                                         $item["plink"] = $orig_link;
 483
 484                                         $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 485
 486                                         $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 487                                         if (!isset($item["object-type"]))
 488                                                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 489                                 }
 490                         }
 491
 492                         //if ($enclosure != "")
 493                         //      $item["body"] .= add_page_info($enclosure);
 494
 495                         if (isset($item["parent-uri"])) {
 496                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 497                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 498
 499                                 if (!$r AND ($related != "")) {
 500                                         $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
 501
 502                                         if ($reply_path != $related) {
 503                                                 logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
 504                                                 $reply_xml = fetch_url($reply_path);
 505
 506                                                 $reply_contact = $contact;
 507                                                 self::import($reply_xml,$importer,$reply_contact, $reply_hub);
 508
 509                                                 // After the import try to fetch the parent item again
 510                                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 511                                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 512                                         }
 513                                 }
 514                                 if ($r) {
 515                                         $item["type"] = 'remote-comment';
 516                                         $item["gravity"] = GRAVITY_COMMENT;
 517                                 }
 518                         } else
 519                                 $item["parent-uri"] = $item["uri"];
 520
 521                         $item_id = self::completion($conversation, $importer["uid"], $item, $self);
 522
 523                         if (!$item_id) {
 524                                 logger("Error storing item", LOGGER_DEBUG);
 525                                 continue;
 526                         }
 527
 528                         logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
 529                 }
 530         }
 531
 532         /**
 533          * @brief
 534          *
 535          * @param $href
 536          *
 537          * @return
 538          */
 539         public static function convert_href($href) {
 540                 $elements = explode(":",$href);
 541
 542                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 543                         return $href;
 544
 545                 $server = explode(",", $elements[1]);
 546                 $conversation = explode("=", $elements[2]);
 547
 548                 if ((count($elements) == 4) AND ($elements[2] == "post"))
 549                         return "http://".$server[0]."/notice/".$elements[3];
 550
 551                 if ((count($conversation) != 2) OR ($conversation[1] ==""))
 552                         return $href;
 553
 554                 if ($elements[3] == "objectType=thread")
 555                         return "http://".$server[0]."/conversation/".$conversation[1];
 556                 else
 557                         return "http://".$server[0]."/notice/".$conversation[1];
 558
 559                 return $href;
 560         }
 561
 562         /**
 563          * @brief
 564          *
 565          * @param $mentions
 566          * @param $override
 567          *
 568          * @return
 569          */
 570         public static function check_conversations($mentions = false, $override = false) {
 571                 $last = get_config('system','ostatus_last_poll');
 572
 573                 $poll_interval = intval(get_config('system','ostatus_poll_interval'));
 574                 if(! $poll_interval)
 575                         $poll_interval = OSTATUS_DEFAULT_POLL_INTERVAL;
 576
 577                 // Don't poll if the interval is set negative
 578                 if (($poll_interval < 0) AND !$override)
 579                         return;
 580
 581                 if (!$mentions) {
 582                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 583                         if (!$poll_timeframe)
 584                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME;
 585                 } else {
 586                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 587                         if (!$poll_timeframe)
 588                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
 589                 }
 590
 591
 592                 if ($last AND !$override) {
 593                         $next = $last + ($poll_interval * 60);
 594                         if ($next > time()) {
 595                                 logger('poll interval not reached');
 596                                 return;
 597                         }
 598                 }
 599
 600                 logger('cron_start');
 601
 602                 $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
 603
 604                 if ($mentions)
 605                         $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 606                                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 607                                                 WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
 608                                                 GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
 609                 else
 610                         $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 611                                                 WHERE `type` = 7 AND `term` > '%s'
 612                                                 GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
 613
 614                 foreach ($conversations AS $conversation) {
 615                         self::completion($conversation['url'], $conversation['uid']);
 616                 }
 617
 618                 logger('cron_end');
 619
 620                 set_config('system','ostatus_last_poll', time());
 621         }
 622
 623         /**
 624          * @brief Updates the gcontact table with actor data from the conversation
 625          *
 626          * @param object $actor The actor object that contains the contact data
 627          */
 628         private function conv_fetch_actor($actor) {
 629
 630                 // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
 631                 $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
 632
 633                 if (isset($actor->url))
 634                         $contact["url"] = $actor->url;
 635
 636                 if (isset($actor->displayName))
 637                         $contact["name"] = $actor->displayName;
 638
 639                 if (isset($actor->portablecontacts_net->displayName))
 640                         $contact["name"] = $actor->portablecontacts_net->displayName;
 641
 642                 if (isset($actor->portablecontacts_net->preferredUsername))
 643                         $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
 644
 645                 if (isset($actor->id))
 646                         $contact["alias"] = $actor->id;
 647
 648                 if (isset($actor->summary))
 649                         $contact["about"] = $actor->summary;
 650
 651                 if (isset($actor->portablecontacts_net->note))
 652                         $contact["about"] = $actor->portablecontacts_net->note;
 653
 654                 if (isset($actor->portablecontacts_net->addresses->formatted))
 655                         $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
 656
 657
 658                 if (isset($actor->image->url))
 659                         $contact["photo"] = $actor->image->url;
 660
 661                 if (isset($actor->image->width))
 662                         $avatarwidth = $actor->image->width;
 663
 664                 if (is_array($actor->status_net->avatarLinks))
 665                         foreach ($actor->status_net->avatarLinks AS $avatar) {
 666                                 if ($avatarsize < $avatar->width) {
 667                                         $contact["photo"] = $avatar->url;
 668                                         $avatarsize = $avatar->width;
 669                                 }
 670                         }
 671
 672                 update_gcontact($contact);
 673         }
 674
 675         /**
 676          * @brief Fetches the conversation url for a given item link or conversation id
 677          *
 678          * @param string $self The link to the posting
 679          * @param string $conversation_id The conversation id
 680          *
 681          * @return string The conversation url
 682          */
 683         private function fetch_conversation($self, $conversation_id = "") {
 684
 685                 if ($conversation_id != "") {
 686                         $elements = explode(":", $conversation_id);
 687
 688                         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 689                                 return $conversation_id;
 690                 }
 691
 692                 if ($self == "")
 693                         return "";
 694
 695                 $json = str_replace(".atom", ".json", $self);
 696
 697                 $raw = fetch_url($json);
 698                 if ($raw == "")
 699                         return "";
 700
 701                 $data = json_decode($raw);
 702                 if (!is_object($data))
 703                         return "";
 704
 705                 $conversation_id = $data->statusnet_conversation_id;
 706
 707                 $pos = strpos($self, "/api/statuses/show/");
 708                 $base_url = substr($self, 0, $pos);
 709
 710                 return $base_url."/conversation/".$conversation_id;
 711         }
 712
 713         /**
 714          * @brief Fetches actor details of a given actor and user id
 715          *
 716          * @param string $actor The actor url
 717          * @param int $uid The user id
 718          * @param int $contact_id The default contact-id
 719          *
 720          * @return array Array with actor details
 721          */
 722         private function get_actor_details($actor, $uid, $contact_id) {
 723
 724                 $details = array();
 725
 726                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
 727                                         $uid, normalise_link($actor), NETWORK_STATUSNET);
 728
 729                 if (!$contact)
 730                         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
 731                                         $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
 732
 733                 if ($contact) {
 734                         logger("Found contact for url ".$actor, LOGGER_DEBUG);
 735                         $details["contact_id"] = $contact[0]["id"];
 736                         $details["network"] = $contact[0]["network"];
 737
 738                         $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
 739                 } else {
 740                         logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
 741
 742                         // Adding a global contact
 743                         /// @TODO Use this data for the post
 744                         $details["global_contact_id"] = get_contact($actor, 0);
 745
 746                         logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
 747
 748                         $details["contact_id"] = $contact_id;
 749                         $details["network"] = NETWORK_OSTATUS;
 750
 751                         $details["not_following"] = true;
 752                 }
 753
 754                 return $details;
 755         }
 756
 757         /**
 758          * @brief
 759          *
 760          * @param $conversation_url
 761          * @param $uid
 762          * @param $item
 763          *
 764          * @return
 765          */
 766         private function completion($conversation_url, $uid, $item = array(), $self = "") {
 767
 768
 769                 $item_stored = -1;
 770
 771                 $conversation_url = self::fetch_conversation($self, $conversation_url);
 772
 773                 // If the thread shouldn't be completed then store the item and go away
 774                 // Don't do a completion on liked content
 775                 if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
 776                         ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
 777                         $item_stored = item_store($item, true);
 778                         return($item_stored);
 779                 }
 780
 781                 // Get the parent
 782                 $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 783                                 (SELECT `parent` FROM `item` WHERE `id` IN
 784                                         (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
 785                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 786
 787                 if ($parents)
 788                         $parent = $parents[0];
 789                 elseif (count($item) > 0) {
 790                         $parent = $item;
 791                         $parent["type"] = "remote";
 792                         $parent["verb"] = ACTIVITY_POST;
 793                         $parent["visible"] = 1;
 794                 } else {
 795                         // Preset the parent
 796                         $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
 797                         if (!$r)
 798                                 return(-2);
 799
 800                         $parent = array();
 801                         $parent["id"] = 0;
 802                         $parent["parent"] = 0;
 803                         $parent["uri"] = "";
 804                         $parent["contact-id"] = $r[0]["id"];
 805                         $parent["type"] = "remote";
 806                         $parent["verb"] = ACTIVITY_POST;
 807                         $parent["visible"] = 1;
 808                 }
 809
 810                 $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
 811                 $pageno = 1;
 812                 $items = array();
 813
 814                 logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
 815
 816                 do {
 817                         $conv_arr = z_fetch_url($conv."?page=".$pageno);
 818
 819                         // If it is a non-ssl site and there is an error, then try ssl or vice versa
 820                         if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
 821                                 $conv = str_replace("http://", "https://", $conv);
 822                                 $conv_as = fetch_url($conv."?page=".$pageno);
 823                         } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
 824                                 $conv = str_replace("https://", "http://", $conv);
 825                                 $conv_as = fetch_url($conv."?page=".$pageno);
 826                         } else
 827                                 $conv_as = $conv_arr["body"];
 828
 829                         $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
 830                         $conv_as = json_decode($conv_as);
 831
 832                         $no_of_items = sizeof($items);
 833
 834                         if (@is_array($conv_as->items))
 835                                 foreach ($conv_as->items AS $single_item)
 836                                         $items[$single_item->id] = $single_item;
 837
 838                         if ($no_of_items == sizeof($items))
 839                                 break;
 840
 841                         $pageno++;
 842
 843                 } while (true);
 844
 845                 logger('fetching conversation done. Found '.count($items).' items');
 846
 847                 if (!sizeof($items)) {
 848                         if (count($item) > 0) {
 849                                 $item_stored = item_store($item, true);
 850
 851                                 if ($item_stored) {
 852                                         logger("Conversation ".$conversation_url." couldn't be fetched. Item uri ".$item["uri"]." stored: ".$item_stored, LOGGER_DEBUG);
 853                                         self::store_conversation($item_id, $conversation_url);
 854                                 }
 855
 856                                 return($item_stored);
 857                         } else
 858                                 return(-3);
 859                 }
 860
 861                 $items = array_reverse($items);
 862
 863                 $r = q("SELECT `nurl` FROM `contact` WHERE `uid` = %d AND `self`", intval($uid));
 864                 $importer = $r[0];
 865
 866                 $new_parent = true;
 867
 868                 foreach ($items as $single_conv) {
 869
 870                         // Update the gcontact table
 871                         self::conv_fetch_actor($single_conv->actor);
 872
 873                         // Test - remove before flight
 874                         //$tempfile = tempnam(get_temppath(), "conversation");
 875                         //file_put_contents($tempfile, json_encode($single_conv));
 876
 877                         $mention = false;
 878
 879                         if (isset($single_conv->object->id))
 880                                 $single_conv->id = $single_conv->object->id;
 881
 882                         $plink = self::convert_href($single_conv->id);
 883                         if (isset($single_conv->object->url))
 884                                 $plink = self::convert_href($single_conv->object->url);
 885
 886                         if (@!$single_conv->id)
 887                                 continue;
 888
 889                         logger("Got id ".$single_conv->id, LOGGER_DEBUG);
 890
 891                         if ($first_id == "") {
 892                                 $first_id = $single_conv->id;
 893
 894                                 // The first post of the conversation isn't our first post. There are three options:
 895                                 // 1. Our conversation hasn't the "real" thread starter
 896                                 // 2. This first post is a post inside our thread
 897                                 // 3. This first post is a post inside another thread
 898                                 if (($first_id != $parent["uri"]) AND ($parent["uri"] != "")) {
 899
 900                                         $new_parent = true;
 901
 902                                         $new_parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 903                                                                 (SELECT `parent` FROM `item`
 904                                                                         WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s')) LIMIT 1",
 905                                                 intval($uid), dbesc($first_id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 906                                         if ($new_parents) {
 907                                                 if ($new_parents[0]["parent"] == $parent["parent"]) {
 908                                                         // Option 2: This post is already present inside our thread - but not as thread starter
 909                                                         logger("Option 2: uri present in our thread: ".$first_id, LOGGER_DEBUG);
 910                                                         $first_id = $parent["uri"];
 911                                                 } else {
 912                                                         // Option 3: Not so good. We have mixed parents. We have to see how to clean this up.
 913                                                         // For now just take the new parent.
 914                                                         $parent = $new_parents[0];
 915                                                         $first_id = $parent["uri"];
 916                                                         logger("Option 3: mixed parents for uri ".$first_id, LOGGER_DEBUG);
 917                                                 }
 918                                         } else {
 919                                                 // Option 1: We hadn't got the real thread starter
 920                                                 // We have to clean up our existing messages.
 921                                                 $parent["id"] = 0;
 922                                                 $parent["uri"] = $first_id;
 923                                                 logger("Option 1: we have a new parent: ".$first_id, LOGGER_DEBUG);
 924                                         }
 925                                 } elseif ($parent["uri"] == "") {
 926                                         $parent["id"] = 0;
 927                                         $parent["uri"] = $first_id;
 928                                 }
 929                         }
 930
 931                         $parent_uri = $parent["uri"];
 932
 933                         // "context" only seems to exist on older servers
 934                         if (isset($single_conv->context->inReplyTo->id)) {
 935                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 936                                                         intval($uid), dbesc($single_conv->context->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 937                                 if ($parent_exists)
 938                                         $parent_uri = $single_conv->context->inReplyTo->id;
 939                         }
 940
 941                         // This is the current way
 942                         if (isset($single_conv->object->inReplyTo->id)) {
 943                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 944                                                         intval($uid), dbesc($single_conv->object->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 945                                 if ($parent_exists)
 946                                         $parent_uri = $single_conv->object->inReplyTo->id;
 947                         }
 948
 949                         $message_exists = q("SELECT `id`, `parent`, `uri` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 950                                                         intval($uid), dbesc($single_conv->id),
 951                                                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 952                         if ($message_exists) {
 953                                 logger("Message ".$single_conv->id." already existed on the system", LOGGER_DEBUG);
 954
 955                                 if ($parent["id"] != 0) {
 956                                         $existing_message = $message_exists[0];
 957
 958                                         // We improved the way we fetch OStatus messages, this shouldn't happen very often now
 959                                         /// @TODO We have to change the shadow copies as well. This way here is really ugly.
 960                                         if ($existing_message["parent"] != $parent["id"]) {
 961                                                 logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
 962
 963                                                 // Update the parent id of the selected item
 964                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `id` = %d",
 965                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["id"]));
 966
 967                                                 // Update the parent uri in the thread - but only if it points to itself
 968                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE `id` = %d AND `uri` = `thr-parent`",
 969                                                         dbesc($parent_uri), intval($existing_message["id"]));
 970
 971                                                 // try to change all items of the same parent
 972                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `parent` = %d",
 973                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["parent"]));
 974
 975                                                 // Update the parent uri in the thread - but only if it points to itself
 976                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE (`parent` = %d) AND (`uri` = `thr-parent`)",
 977                                                         dbesc($parent["uri"]), intval($existing_message["parent"]));
 978
 979                                                 // Now delete the thread
 980                                                 delete_thread($existing_message["parent"]);
 981                                         }
 982                                 }
 983
 984                                 // The item we are having on the system is the one that we wanted to store via the item array
 985                                 if (isset($item["uri"]) AND ($item["uri"] == $existing_message["uri"])) {
 986                                         $item = array();
 987                                         $item_stored = 0;
 988                                 }
 989
 990                                 continue;
 991                         }
 992
 993                         if (is_array($single_conv->to))
 994                                 foreach($single_conv->to AS $to)
 995                                         if ($importer["nurl"] == normalise_link($to->id))
 996                                                 $mention = true;
 997
 998                         $actor = $single_conv->actor->id;
 999                         if (isset($single_conv->actor->url))
1000                                 $actor = $single_conv->actor->url;
1001
1002                         $details = self::get_actor_details($actor, $uid, $parent["contact-id"]);
1003
1004                         // Do we only want to import threads that were started by our contacts?
1005                         if ($details["not_following"] AND $new_parent AND get_config('system','ostatus_full_threads')) {
1006                                 logger("Don't import uri ".$first_id." because user ".$uid." doesn't follow the person ".$actor, LOGGER_DEBUG);
1007                                 continue;
1008                         }
1009
1010                         $arr = array();
1011                         $arr["network"] = $details["network"];
1012                         $arr["uri"] = $single_conv->id;
1013                         $arr["plink"] = $plink;
1014                         $arr["uid"] = $uid;
1015                         $arr["contact-id"] = $details["contact_id"];
1016                         $arr["parent-uri"] = $parent_uri;
1017                         $arr["created"] = $single_conv->published;
1018                         $arr["edited"] = $single_conv->published;
1019                         $arr["owner-name"] = $single_conv->actor->displayName;
1020                         if ($arr["owner-name"] == '')
1021                                 $arr["owner-name"] = $single_conv->actor->contact->displayName;
1022                         if ($arr["owner-name"] == '')
1023                                 $arr["owner-name"] = $single_conv->actor->portablecontacts_net->displayName;
1024
1025                         $arr["owner-link"] = $actor;
1026                         $arr["owner-avatar"] = $single_conv->actor->image->url;
1027                         $arr["author-name"] = $arr["owner-name"];
1028                         $arr["author-link"] = $actor;
1029                         $arr["author-avatar"] = $single_conv->actor->image->url;
1030                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->content));
1031
1032                         if (isset($single_conv->status_net->notice_info->source))
1033                                 $arr["app"] = strip_tags($single_conv->status_net->notice_info->source);
1034                         elseif (isset($single_conv->statusnet->notice_info->source))
1035                                 $arr["app"] = strip_tags($single_conv->statusnet->notice_info->source);
1036                         elseif (isset($single_conv->statusnet_notice_info->source))
1037                                 $arr["app"] = strip_tags($single_conv->statusnet_notice_info->source);
1038                         elseif (isset($single_conv->provider->displayName))
1039                                 $arr["app"] = $single_conv->provider->displayName;
1040                         else
1041                                 $arr["app"] = "OStatus";
1042
1043
1044                         $arr["object"] = json_encode($single_conv);
1045                         $arr["verb"] = $parent["verb"];
1046                         $arr["visible"] = $parent["visible"];
1047                         $arr["location"] = $single_conv->location->displayName;
1048                         $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1049
1050                         // Is it a reshared item?
1051                         if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1052                                 if (is_array($single_conv->object))
1053                                         $single_conv->object = $single_conv->object[0];
1054
1055                                 logger("Found reshared item ".$single_conv->object->id);
1056
1057                                 // $single_conv->object->context->conversation;
1058
1059                                 if (isset($single_conv->object->object->id))
1060                                         $arr["uri"] = $single_conv->object->object->id;
1061                                 else
1062                                         $arr["uri"] = $single_conv->object->id;
1063
1064                                 if (isset($single_conv->object->object->url))
1065                                         $plink = self::convert_href($single_conv->object->object->url);
1066                                 else
1067                                         $plink = self::convert_href($single_conv->object->url);
1068
1069                                 if (isset($single_conv->object->object->content))
1070                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1071                                 else
1072                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1073
1074                                 $arr["plink"] = $plink;
1075
1076                                 $arr["created"] = $single_conv->object->published;
1077                                 $arr["edited"] = $single_conv->object->published;
1078
1079                                 $arr["author-name"] = $single_conv->object->actor->displayName;
1080                                 if ($arr["owner-name"] == '')
1081                                         $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1082
1083                                 $arr["author-link"] = $single_conv->object->actor->url;
1084                                 $arr["author-avatar"] = $single_conv->object->actor->image->url;
1085
1086                                 $arr["app"] = $single_conv->object->provider->displayName."#";
1087                                 //$arr["verb"] = $single_conv->object->verb;
1088
1089                                 $arr["location"] = $single_conv->object->location->displayName;
1090                                 $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1091                         }
1092
1093                         if ($arr["location"] == "")
1094                                 unset($arr["location"]);
1095
1096                         if ($arr["coord"] == "")
1097                                 unset($arr["coord"]);
1098
1099                         // Copy fields from given item array
1100                         if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1101                                 $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1102                                                         "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1103                                                         "title", "attach", "app", "type", "location", "contact-id", "uri");
1104                                 foreach ($copy_fields AS $field)
1105                                         if (isset($item[$field]))
1106                                                 $arr[$field] = $item[$field];
1107
1108                         }
1109
1110                         $newitem = item_store($arr);
1111                         if (!$newitem) {
1112                                 logger("Item wasn't stored ".print_r($arr, true), LOGGER_DEBUG);
1113                                 continue;
1114                         }
1115
1116                         if (isset($item["uri"]) AND ($item["uri"] == $arr["uri"])) {
1117                                 $item = array();
1118                                 $item_stored = $newitem;
1119                         }
1120
1121                         logger('Stored new item '.$plink.' for parent '.$arr["parent-uri"].' under id '.$newitem, LOGGER_DEBUG);
1122
1123                         // Add the conversation entry (but don't fetch the whole conversation)
1124                         self::store_conversation($newitem, $conversation_url);
1125
1126                         // If the newly created item is the top item then change the parent settings of the thread
1127                         // This shouldn't happen anymore. This is supposed to be absolote.
1128                         if ($arr["uri"] == $first_id) {
1129                                 logger('setting new parent to id '.$newitem);
1130                                 $new_parents = q("SELECT `id`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
1131                                         intval($uid), intval($newitem));
1132                                 if ($new_parents)
1133                                         $parent = $new_parents[0];
1134                         }
1135                 }
1136
1137                 if (($item_stored < 0) AND (count($item) > 0)) {
1138
1139                         if (get_config('system','ostatus_full_threads')) {
1140                                 $details = self::get_actor_details($item["owner-link"], $uid, $item["contact-id"]);
1141                                 if ($details["not_following"]) {
1142                                         logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1143                                         return false;
1144                                 }
1145                         }
1146
1147                         $item_stored = item_store($item, true);
1148                         if ($item_stored) {
1149                                 logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1150                                 self::store_conversation($item_stored, $conversation_url);
1151                         }
1152                 }
1153
1154                 return($item_stored);
1155         }
1156
1157         /**
1158          * @brief
1159          *
1160          * @param $itemid
1161          * @param $conversation_url
1162          *
1163          * @return
1164          */
1165         private function store_conversation($itemid, $conversation_url) {
1166
1167                 $conversation_url = self::convert_href($conversation_url);
1168
1169                 $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1170                 if (!$messages)
1171                         return;
1172                 $message = $messages[0];
1173
1174                 // Store conversation url if not done before
1175                 $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1176                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1177
1178                 if (!$conversation) {
1179                         $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1180                                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1181                                 dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1182                         logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1183                 }
1184         }
1185
1186         /**
1187          * @brief
1188          *
1189          * @param $item
1190          *
1191          * @return
1192          */
1193         private function get_reshared_guid($item) {
1194                 $body = trim($item["body"]);
1195
1196                 // Skip if it isn't a pure repeated messages
1197                 // Does it start with a share?
1198                 if (strpos($body, "[share") > 0)
1199                         return("");
1200
1201                 // Does it end with a share?
1202                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
1203                         return("");
1204
1205                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1206                 // Skip if there is no shared message in there
1207                 if ($body == $attributes)
1208                         return(false);
1209
1210                 $guid = "";
1211                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1212                 if ($matches[1] != "")
1213                         $guid = $matches[1];
1214
1215                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1216                 if ($matches[1] != "")
1217                         $guid = $matches[1];
1218
1219                 return $guid;
1220         }
1221
1222         /**
1223          * @brief
1224          *
1225          * @param $body
1226          *
1227          * @return
1228          */
1229         private function format_picture_post($body) {
1230                 $siteinfo = get_attached_data($body);
1231
1232                 if (($siteinfo["type"] == "photo")) {
1233                         if (isset($siteinfo["preview"]))
1234                                 $preview = $siteinfo["preview"];
1235                         else
1236                                 $preview = $siteinfo["image"];
1237
1238                         // Is it a remote picture? Then make a smaller preview here
1239                         $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
1240
1241                         // Is it a local picture? Then make it smaller here
1242                         $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
1243                         $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
1244
1245                         if (isset($siteinfo["url"]))
1246                                 $url = $siteinfo["url"];
1247                         else
1248                                 $url = $siteinfo["image"];
1249
1250                         $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
1251                 }
1252
1253                 return $body;
1254         }
1255
1256         /**
1257          * @brief
1258          *
1259          * @param $doc
1260          * @param $owner
1261          *
1262          * @return
1263          */
1264         private function add_header($doc, $owner) {
1265
1266                 $a = get_app();
1267
1268                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1269                 $doc->appendChild($root);
1270
1271                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1272                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1273                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1274                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1275                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1276                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1277                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1278
1279                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1280                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1281                 xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
1282                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1283                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1284                 xml::add_element($doc, $root, "logo", $owner["photo"]);
1285                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1286
1287                 $author = self::add_author($doc, $owner);
1288                 $root->appendChild($author);
1289
1290                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1291                 xml::add_element($doc, $root, "link", "", $attributes);
1292
1293                 /// @TODO We have to find out what this is
1294                 /// $attributes = array("href" => App::get_baseurl()."/sup",
1295                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1296                 ///             "type" => "application/json");
1297                 /// xml::add_element($doc, $root, "link", "", $attributes);
1298
1299                 self::hublinks($doc, $root);
1300
1301                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1302                 xml::add_element($doc, $root, "link", "", $attributes);
1303
1304                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1305                 xml::add_element($doc, $root, "link", "", $attributes);
1306
1307                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1308                 xml::add_element($doc, $root, "link", "", $attributes);
1309
1310                 $attributes = array("href" => App::get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1311                                 "rel" => "self", "type" => "application/atom+xml");
1312                 xml::add_element($doc, $root, "link", "", $attributes);
1313
1314                 return $root;
1315         }
1316
1317         /**
1318          * @brief
1319          *
1320          * @param $doc
1321          * @param $root
1322          *
1323          * @return
1324          */
1325         public static function hublinks($doc, $root) {
1326                 $hub = get_config('system','huburl');
1327
1328                 $hubxml = '';
1329                 if(strlen($hub)) {
1330                         $hubs = explode(',', $hub);
1331                         if(count($hubs)) {
1332                                 foreach($hubs as $h) {
1333                                         $h = trim($h);
1334                                         if(! strlen($h))
1335                                                 continue;
1336                                         if ($h === '[internal]')
1337                                                 $h = App::get_baseurl() . '/pubsubhubbub';
1338                                         xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1339                                 }
1340                         }
1341                 }
1342         }
1343
1344         /**
1345          * @brief
1346          *
1347          * @param $doc
1348          * @param $root
1349          * @param $item
1350          *
1351          * @return
1352          */
1353         private function get_attachment($doc, $root, $item) {
1354                 $o = "";
1355                 $siteinfo = get_attached_data($item["body"]);
1356
1357                 switch($siteinfo["type"]) {
1358                         case 'link':
1359                                 $attributes = array("rel" => "enclosure",
1360                                                 "href" => $siteinfo["url"],
1361                                                 "type" => "text/html; charset=UTF-8",
1362                                                 "length" => "",
1363                                                 "title" => $siteinfo["title"]);
1364                                 xml::add_element($doc, $root, "link", "", $attributes);
1365                                 break;
1366                         case 'photo':
1367                                 $imgdata = get_photo_info($siteinfo["image"]);
1368                                 $attributes = array("rel" => "enclosure",
1369                                                 "href" => $siteinfo["image"],
1370                                                 "type" => $imgdata["mime"],
1371                                                 "length" => intval($imgdata["size"]));
1372                                 xml::add_element($doc, $root, "link", "", $attributes);
1373                                 break;
1374                         case 'video':
1375                                 $attributes = array("rel" => "enclosure",
1376                                                 "href" => $siteinfo["url"],
1377                                                 "type" => "text/html; charset=UTF-8",
1378                                                 "length" => "",
1379                                                 "title" => $siteinfo["title"]);
1380                                 xml::add_element($doc, $root, "link", "", $attributes);
1381                                 break;
1382                         default:
1383                                 break;
1384                 }
1385
1386                 if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1387                         $photodata = get_photo_info($siteinfo["image"]);
1388
1389                         $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1390                         xml::add_element($doc, $root, "link", "", $attributes);
1391                 }
1392
1393
1394                 $arr = explode('[/attach],',$item['attach']);
1395                 if(count($arr)) {
1396                         foreach($arr as $r) {
1397                                 $matches = false;
1398                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1399                                 if($cnt) {
1400                                         $attributes = array("rel" => "enclosure",
1401                                                         "href" => $matches[1],
1402                                                         "type" => $matches[3]);
1403
1404                                         if(intval($matches[2]))
1405                                                 $attributes["length"] = intval($matches[2]);
1406
1407                                         if(trim($matches[4]) != "")
1408                                                 $attributes["title"] = trim($matches[4]);
1409
1410                                         xml::add_element($doc, $root, "link", "", $attributes);
1411                                 }
1412                         }
1413                 }
1414         }
1415
1416         /**
1417          * @brief
1418          *
1419          * @param $doc
1420          * @param $owner
1421          *
1422          * @return
1423          */
1424         private function add_author($doc, $owner) {
1425
1426                 $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1427                 if ($r)
1428                         $profile = $r[0];
1429
1430                 $author = $doc->createElement("author");
1431                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1432                 xml::add_element($doc, $author, "uri", $owner["url"]);
1433                 xml::add_element($doc, $author, "name", $owner["name"]);
1434                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
1435
1436                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1437                 xml::add_element($doc, $author, "link", "", $attributes);
1438
1439                 $attributes = array(
1440                                 "rel" => "avatar",
1441                                 "type" => "image/jpeg", // To-Do?
1442                                 "media:width" => 175,
1443                                 "media:height" => 175,
1444                                 "href" => $owner["photo"]);
1445                 xml::add_element($doc, $author, "link", "", $attributes);
1446
1447                 if (isset($owner["thumb"])) {
1448                         $attributes = array(
1449                                         "rel" => "avatar",
1450                                         "type" => "image/jpeg", // To-Do?
1451                                         "media:width" => 80,
1452                                         "media:height" => 80,
1453                                         "href" => $owner["thumb"]);
1454                         xml::add_element($doc, $author, "link", "", $attributes);
1455                 }
1456
1457                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1458                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1459                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1460
1461                 if (trim($owner["location"]) != "") {
1462                         $element = $doc->createElement("poco:address");
1463                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1464                         $author->appendChild($element);
1465                 }
1466
1467                 if (trim($profile["homepage"]) != "") {
1468                         $urls = $doc->createElement("poco:urls");
1469                         xml::add_element($doc, $urls, "poco:type", "homepage");
1470                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1471                         xml::add_element($doc, $urls, "poco:primary", "true");
1472                         $author->appendChild($urls);
1473                 }
1474
1475                 if (count($profile)) {
1476                         xml::add_element($doc, $author, "followers", "", array("url" => App::get_baseurl()."/viewcontacts/".$owner["nick"]));
1477                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1478                 }
1479
1480                 return $author;
1481         }
1482
1483         /**
1484          * @TODO Picture attachments should look like this:
1485          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1486          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1487          *
1488         */
1489
1490         /**
1491          * @brief
1492          *
1493          * @param $item
1494          *
1495          * @return
1496          */
1497         function construct_verb($item) {
1498                 if ($item['verb'])
1499                         return $item['verb'];
1500                 return ACTIVITY_POST;
1501         }
1502
1503         /**
1504          * @brief
1505          *
1506          * @param $item
1507          *
1508          * @return
1509          */
1510         function construct_objecttype($item) {
1511                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1512                         return $item['object-type'];
1513                 return ACTIVITY_OBJ_NOTE;
1514         }
1515
1516         /**
1517          * @brief
1518          *
1519          * @param $doc
1520          * @param $item
1521          * @param $owner
1522          * @param $toplevel
1523          *
1524          * @return
1525          */
1526         private function entry($doc, $item, $owner, $toplevel = false) {
1527                 $repeated_guid = self::get_reshared_guid($item);
1528                 if ($repeated_guid != "")
1529                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1530
1531                 if ($xml)
1532                         return $xml;
1533
1534                 if ($item["verb"] == ACTIVITY_LIKE)
1535                         return self::like_entry($doc, $item, $owner, $toplevel);
1536                 else
1537                         return self::note_entry($doc, $item, $owner, $toplevel);
1538         }
1539
1540         /**
1541          * @brief
1542          *
1543          * @param $doc
1544          * @param $contact
1545          *
1546          * @return
1547          */
1548         private function source_entry($doc, $contact) {
1549                 $source = $doc->createElement("source");
1550                 xml::add_element($doc, $source, "id", $contact["poll"]);
1551                 xml::add_element($doc, $source, "title", $contact["name"]);
1552                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1553                                                                 "type" => "text/html",
1554                                                                 "href" => $contact["alias"]));
1555                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1556                                                                 "type" => "application/atom+xml",
1557                                                                 "href" => $contact["poll"]));
1558                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1559                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1560
1561                 return $source;
1562         }
1563
1564         /**
1565          * @brief
1566          *
1567          * @param $url
1568          * @param $owner
1569          *
1570          * @return
1571          */
1572         private function contact_entry($url, $owner) {
1573
1574                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1575                         dbesc(normalise_link($url)), intval($owner["uid"]));
1576                 if ($r) {
1577                         $contact = $r[0];
1578                         $contact["uid"] = -1;
1579                 }
1580
1581                 if (!$r) {
1582                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1583                                 dbesc(normalise_link($url)));
1584                         if ($r) {
1585                                 $contact = $r[0];
1586                                 $contact["uid"] = -1;
1587                                 $contact["success_update"] = $contact["updated"];
1588                         }
1589                 }
1590
1591                 if (!$r)
1592                         $contact = owner;
1593
1594                 if (!isset($contact["poll"])) {
1595                         $data = probe_url($url);
1596                         $contact["alias"] = $data["alias"];
1597                         $contact["poll"] = $data["poll"];
1598                 }
1599
1600                 if (!isset($contact["alias"]))
1601                         $contact["alias"] = $contact["url"];
1602
1603                 return $contact;
1604         }
1605
1606         /**
1607          * @brief
1608          *
1609          * @param $doc
1610          * @param $item
1611          * @param $owner
1612          * @param $repeated_guid
1613          * @param $toplevel
1614          *
1615          * @return
1616          */
1617         private function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1618
1619                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1620                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1621                 }
1622
1623                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1624
1625                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1626                         intval($owner["uid"]), dbesc($repeated_guid),
1627                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1628                 if ($r)
1629                         $repeated_item = $r[0];
1630                 else
1631                         return false;
1632
1633                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1634
1635                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1636
1637                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1638
1639                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1640
1641                 $as_object = $doc->createElement("activity:object");
1642
1643                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1644
1645                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1646
1647                 $author = self::add_author($doc, $contact);
1648                 $as_object->appendChild($author);
1649
1650                 $as_object2 = $doc->createElement("activity:object");
1651
1652                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1653
1654                 $title = sprintf("New comment by %s", $contact["nick"]);
1655
1656                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1657
1658                 $as_object->appendChild($as_object2);
1659
1660                 self::entry_footer($doc, $as_object, $item, $owner, false);
1661
1662                 $source = self::source_entry($doc, $contact);
1663
1664                 $as_object->appendChild($source);
1665
1666                 $entry->appendChild($as_object);
1667
1668                 self::entry_footer($doc, $entry, $item, $owner);
1669
1670                 return $entry;
1671         }
1672
1673         /**
1674          * @brief
1675          *
1676          * @param $doc
1677          * @param $item
1678          * @param $owner
1679          * @param $toplevel
1680          *
1681          * @return
1682          */
1683         private function like_entry($doc, $item, $owner, $toplevel) {
1684
1685                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1686                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1687                 }
1688
1689                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1690
1691                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1692                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1693
1694                 $as_object = $doc->createElement("activity:object");
1695
1696                 $parent = q("SELECT * FROM `item` WHERE `id` = %d", intval($item["parent"]));
1697                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1698
1699                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1700
1701                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1702
1703                 $entry->appendChild($as_object);
1704
1705                 self::entry_footer($doc, $entry, $item, $owner);
1706
1707                 return $entry;
1708         }
1709
1710         /**
1711          * @brief
1712          *
1713          * @param $doc
1714          * @param $item
1715          * @param $owner
1716          * @param $toplevel
1717          *
1718          * @return
1719          */
1720         private function note_entry($doc, $item, $owner, $toplevel) {
1721
1722                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1723                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1724                 }
1725
1726                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1727
1728                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1729
1730                 self::entry_content($doc, $entry, $item, $owner, $title);
1731
1732                 self::entry_footer($doc, $entry, $item, $owner);
1733
1734                 return $entry;
1735         }
1736
1737         /**
1738          * @brief
1739          *
1740          * @param $doc
1741          * @param $entry
1742          * @param $owner
1743          * @param $toplevel
1744          *
1745          * @return
1746          */
1747         private function entry_header($doc, &$entry, $owner, $toplevel) {
1748                 if (!$toplevel) {
1749                         $entry = $doc->createElement("entry");
1750                         $title = sprintf("New note by %s", $owner["nick"]);
1751                 } else {
1752                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1753
1754                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1755                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1756                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1757                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1758                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1759                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1760                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1761
1762                         $author = self::add_author($doc, $owner);
1763                         $entry->appendChild($author);
1764
1765                         $title = sprintf("New comment by %s", $owner["nick"]);
1766                 }
1767                 return $title;
1768         }
1769
1770         /**
1771          * @brief
1772          *
1773          * @param $doc
1774          * @param $entry
1775          * @param $item
1776          * @param $owner
1777          * @param $title
1778          * @param $verb
1779          * @param $complete
1780          *
1781          * @return
1782          */
1783         private function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
1784
1785                 if ($verb == "")
1786                         $verb = self::construct_verb($item);
1787
1788                 xml::add_element($doc, $entry, "id", $item["uri"]);
1789                 xml::add_element($doc, $entry, "title", $title);
1790
1791                 $body = self::format_picture_post($item['body']);
1792
1793                 if ($item['title'] != "")
1794                         $body = "[b]".$item['title']."[/b]\n\n".$body;
1795
1796                 $body = bbcode($body, false, false, 7);
1797
1798                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
1799
1800                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1801                                                                 "href" => App::get_baseurl()."/display/".$item["guid"]));
1802
1803                 if ($complete)
1804                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1805
1806                 xml::add_element($doc, $entry, "activity:verb", $verb);
1807
1808                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1809                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1810         }
1811
1812         /**
1813          * @brief
1814          *
1815          * @param $doc
1816          * @param $entry
1817          * @param $item
1818          * @param $owner
1819          * @param $complete
1820          *
1821          * @return
1822          */
1823         private function entry_footer($doc, $entry, $item, $owner, $complete = true) {
1824
1825                 $mentioned = array();
1826
1827                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1828                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1829                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1830
1831                         $attributes = array(
1832                                         "ref" => $parent_item,
1833                                         "type" => "text/html",
1834                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1835                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1836
1837                         $attributes = array(
1838                                         "rel" => "related",
1839                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1840                         xml::add_element($doc, $entry, "link", "", $attributes);
1841
1842                         $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1843                         $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1844
1845                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
1846                                         intval($owner["uid"]),
1847                                         dbesc($parent_item));
1848                         if ($thrparent) {
1849                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
1850                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
1851                         }
1852                 }
1853
1854                 xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation",
1855                                                         "href" => App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]));
1856                 xml::add_element($doc, $entry, "ostatus:conversation", App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]);
1857
1858                 $tags = item_getfeedtags($item);
1859
1860                 if(count($tags))
1861                         foreach($tags as $t)
1862                                 if ($t[0] == "@")
1863                                         $mentioned[$t[1]] = $t[1];
1864
1865                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1866                 $newmentions = array();
1867                 foreach ($mentioned AS $mention) {
1868                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
1869                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
1870                 }
1871                 $mentioned = $newmentions;
1872
1873                 foreach ($mentioned AS $mention) {
1874                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1875                                 intval($owner["uid"]),
1876                                 dbesc(normalise_link($mention)));
1877                         if ($r[0]["forum"] OR $r[0]["prv"])
1878                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1879                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
1880                                                                                         "href" => $mention));
1881                         else
1882                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1883                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
1884                                                                                         "href" => $mention));
1885                 }
1886
1887                 if (!$item["private"]) {
1888                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
1889                                                                         "href" => "http://activityschema.org/collection/public"));
1890                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1891                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
1892                                                                         "href" => "http://activityschema.org/collection/public"));
1893                 }
1894
1895                 if(count($tags))
1896                         foreach($tags as $t)
1897                                 if ($t[0] != "@")
1898                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
1899
1900                 self::get_attachment($doc, $entry, $item);
1901
1902                 if ($complete) {
1903                         $app = $item["app"];
1904                         if ($app == "")
1905                                 $app = "web";
1906
1907                         $attributes = array("local_id" => $item["id"], "source" => $app);
1908
1909                         if (isset($parent["id"]))
1910                                 $attributes["repeat_of"] = $parent["id"];
1911
1912                         if ($item["coord"] != "")
1913                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
1914
1915                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
1916                 }
1917         }
1918
1919         /**
1920          * @brief
1921          *
1922          * @param $a
1923          * @param $owner_nick
1924          * @param $last_update
1925          *
1926          * @return
1927          */
1928         public static function feed(&$a, $owner_nick, $last_update) {
1929
1930                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
1931                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
1932                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
1933                                 dbesc($owner_nick));
1934                 if (!$r)
1935                         return;
1936
1937                 $owner = $r[0];
1938
1939                 if(!strlen($last_update))
1940                         $last_update = 'now -30 days';
1941
1942                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
1943
1944                 $items = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id` FROM `item`
1945                                 INNER JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1946                                 LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
1947                                 WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
1948                                         AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1949                                         AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
1950                                                 OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
1951                                         AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
1952                                                 OR (`item`.`author-link` IN ('%s', '%s')))
1953                                 ORDER BY `item`.`received` DESC
1954                                 LIMIT 0, 300",
1955                                 intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
1956                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1957                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1958                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1959                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1960                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
1961                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
1962                         );
1963
1964                 $doc = new DOMDocument('1.0', 'utf-8');
1965                 $doc->formatOutput = true;
1966
1967                 $root = self::add_header($doc, $owner);
1968
1969                 foreach ($items AS $item) {
1970                         $entry = self::entry($doc, $item, $owner);
1971                         $root->appendChild($entry);
1972                 }
1973
1974                 return(trim($doc->saveXML()));
1975         }
1976
1977         /**
1978          * @brief
1979          *
1980          * @param $item
1981          * @param $owner
1982          *
1983          * @return
1984          */
1985         public static function salmon($item,$owner) {
1986
1987                 $doc = new DOMDocument('1.0', 'utf-8');
1988                 $doc->formatOutput = true;
1989
1990                 $entry = self::entry($doc, $item, $owner, true);
1991
1992                 $doc->appendChild($entry);
1993
1994                 return(trim($doc->saveXML()));
1995         }
1996 }
1997 ?>