include/ostatus.php

   1 <?php
   2 require_once("include/Contact.php");
   3 require_once("include/threads.php");
   4 require_once("include/html2bbcode.php");
   5 require_once("include/bbcode.php");
   6 require_once("include/items.php");
   7 require_once("mod/share.php");
   8 require_once("include/enotify.php");
   9 require_once("include/socgraph.php");
  10 require_once("include/Photo.php");
  11 require_once("include/Scrape.php");
  12 require_once("include/follow.php");
  13 require_once("include/api.php");
  14 require_once("mod/proxy.php");
  15
  16 define('OSTATUS_DEFAULT_POLL_INTERVAL', 30); // given in minutes
  17 define('OSTATUS_DEFAULT_POLL_TIMEFRAME', 1440); // given in minutes
  18 define('OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS', 14400); // given in minutes
  19
  20 function ostatus_check_follow_friends() {
  21         $r = q("SELECT `uid`,`v` FROM `pconfig` WHERE `cat`='system' AND `k`='ostatus_legacy_contact' AND `v` != ''");
  22
  23         if (!$r)
  24                 return;
  25
  26         foreach ($r AS $contact) {
  27                 ostatus_follow_friends($contact["uid"], $contact["v"]);
  28                 set_pconfig($contact["uid"], "system", "ostatus_legacy_contact", "");
  29         }
  30 }
  31
  32 // This function doesn't work reliable by now.
  33 function ostatus_follow_friends($uid, $url) {
  34         $contact = probe_url($url);
  35
  36         if (!$contact)
  37                 return;
  38
  39         $api = $contact["baseurl"]."/api/";
  40
  41         // Fetching friends
  42         $data = z_fetch_url($api."statuses/friends.json?screen_name=".$contact["nick"]);
  43
  44         if (!$data["success"])
  45                 return;
  46
  47         $friends = json_decode($data["body"]);
  48
  49         foreach ($friends AS $friend) {
  50                 $url = $friend->statusnet_profile_url;
  51                 $r = q("SELECT `url` FROM `contact` WHERE `uid` = %d AND
  52                         (`nurl` = '%s' OR `alias` = '%s' OR `alias` = '%s') AND
  53                         `network` != '%s' LIMIT 1",
  54                         intval($uid), dbesc(normalise_link($url)),
  55                         dbesc(normalise_link($url)), dbesc($url), dbesc(NETWORK_STATUSNET));
  56                 if (!$r) {
  57                         $data = probe_url($friend->statusnet_profile_url);
  58                         if ($data["network"] == NETWORK_OSTATUS) {
  59                                 $result = new_contact($uid,$friend->statusnet_profile_url);
  60                                 if ($result["success"])
  61                                         logger($friend->name." ".$url." - success", LOGGER_DEBUG);
  62                                 else
  63                                         logger($friend->name." ".$url." - failed", LOGGER_DEBUG);
  64                         } else
  65                                 logger($friend->name." ".$url." - not OStatus", LOGGER_DEBUG);
  66                 }
  67         }
  68 }
  69
  70 function ostatus_fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch) {
  71
  72         $author = array();
  73         $author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
  74         $author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
  75
  76         // Preserve the value
  77         $authorlink = $author["author-link"];
  78
  79         $alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
  80         if (is_object($alternate))
  81                 foreach($alternate AS $attributes)
  82                         if ($attributes->name == "href")
  83                                 $author["author-link"] = $attributes->textContent;
  84
  85         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` IN ('%s', '%s') AND `network` != '%s'",
  86                 intval($importer["uid"]), dbesc(normalise_link($author["author-link"])),
  87                 dbesc(normalise_link($authorlink)), dbesc(NETWORK_STATUSNET));
  88         if ($r) {
  89                 $contact = $r[0];
  90                 $author["contact-id"] = $r[0]["id"];
  91         } else
  92                 $author["contact-id"] = $contact["id"];
  93
  94         $avatarlist = array();
  95         $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
  96         foreach($avatars AS $avatar) {
  97                 $href = "";
  98                 $width = 0;
  99                 foreach($avatar->attributes AS $attributes) {
 100                         if ($attributes->name == "href")
 101                                 $href = $attributes->textContent;
 102                         if ($attributes->name == "width")
 103                                 $width = $attributes->textContent;
 104                 }
 105                 if (($width > 0) AND ($href != ""))
 106                         $avatarlist[$width] = $href;
 107         }
 108         if (count($avatarlist) > 0) {
 109                 krsort($avatarlist);
 110                 $author["author-avatar"] = current($avatarlist);
 111         }
 112
 113         $displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 114         if ($displayname != "")
 115                 $author["author-name"] = $displayname;
 116
 117         $author["owner-name"] = $author["author-name"];
 118         $author["owner-link"] = $author["author-link"];
 119         $author["owner-avatar"] = $author["author-avatar"];
 120
 121         // Only update the contacts if it is an OStatus contact
 122         if ($r AND !$onlyfetch AND ($contact["network"] == NETWORK_OSTATUS)) {
 123                 // Update contact data
 124
 125                 $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
 126                 if ($value != "")
 127                         $contact["notify"] = $value;
 128
 129                 $value = $xpath->evaluate('atom:author/uri/text()', $context)->item(0)->nodeValue;
 130                 if ($value != "")
 131                         $contact["alias"] = $value;
 132
 133                 $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 134                 if ($value != "")
 135                         $contact["name"] = $value;
 136
 137                 $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 138                 if ($value != "")
 139                         $contact["nick"] = $value;
 140
 141                 $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
 142                 if ($value != "")
 143                         $contact["about"] = html2bbcode($value);
 144
 145                 $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
 146                 if ($value != "")
 147                         $contact["location"] = $value;
 148
 149                 if (($contact["name"] != $r[0]["name"]) OR ($contact["nick"] != $r[0]["nick"]) OR ($contact["about"] != $r[0]["about"]) OR ($contact["location"] != $r[0]["location"])) {
 150
 151                         logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 152
 153                         q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
 154                                 dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["about"]), dbesc($contact["location"]),
 155                                 dbesc(datetime_convert()), intval($contact["id"]));
 156
 157                         poco_check($contact["url"], $contact["name"], $contact["network"], $author["author-avatar"], $contact["about"], $contact["location"],
 158                                                 "", "", "", datetime_convert(), 2, $contact["id"], $contact["uid"]);
 159                 }
 160
 161                 if (isset($author["author-avatar"]) AND ($author["author-avatar"] != $r[0]['avatar'])) {
 162                         logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
 163
 164                         update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
 165                 }
 166
 167                 $contact["generation"] = 2;
 168                 $contact["photo"] = $author["author-avatar"];
 169                 update_gcontact($contact);
 170         }
 171
 172         return($author);
 173 }
 174
 175 function ostatus_salmon_author($xml, $importer) {
 176         $a = get_app();
 177
 178         if ($xml == "")
 179                 return;
 180
 181         $doc = new DOMDocument();
 182         @$doc->loadXML($xml);
 183
 184         $xpath = new DomXPath($doc);
 185         $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 186         $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 187         $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 188         $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 189         $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 190         $xpath->registerNamespace('poco', NAMESPACE_POCO);
 191         $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 192         $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 193
 194         $entries = $xpath->query('/atom:entry');
 195
 196         foreach ($entries AS $entry) {
 197                 // fetch the author
 198                 $author = ostatus_fetchauthor($xpath, $entry, $importer, $contact, true);
 199                 return $author;
 200         }
 201 }
 202
 203 function ostatus_import($xml,$importer,&$contact, &$hub) {
 204
 205         $a = get_app();
 206
 207         logger("Import OStatus message", LOGGER_DEBUG);
 208
 209         if ($xml == "")
 210                 return;
 211
 212         $doc = new DOMDocument();
 213         @$doc->loadXML($xml);
 214
 215         $xpath = new DomXPath($doc);
 216         $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 217         $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 218         $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 219         $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 220         $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 221         $xpath->registerNamespace('poco', NAMESPACE_POCO);
 222         $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 223         $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 224
 225         $gub = "";
 226         $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
 227         if (is_object($hub_attributes))
 228                 foreach($hub_attributes AS $hub_attribute)
 229                         if ($hub_attribute->name == "href") {
 230                                 $hub = $hub_attribute->textContent;
 231                                 logger("Found hub ".$hub, LOGGER_DEBUG);
 232                         }
 233
 234         $header = array();
 235         $header["uid"] = $importer["uid"];
 236         $header["network"] = NETWORK_OSTATUS;
 237         $header["type"] = "remote";
 238         $header["wall"] = 0;
 239         $header["origin"] = 0;
 240         $header["gravity"] = GRAVITY_PARENT;
 241
 242         // it could either be a received post or a post we fetched by ourselves
 243         // depending on that, the first node is different
 244         $first_child = $doc->firstChild->tagName;
 245
 246         if ($first_child == "feed")
 247                 $entries = $xpath->query('/atom:feed/atom:entry');
 248         else
 249                 $entries = $xpath->query('/atom:entry');
 250
 251         $conversation = "";
 252         $conversationlist = array();
 253         $item_id = 0;
 254
 255         // Reverse the order of the entries
 256         $entrylist = array();
 257
 258         foreach ($entries AS $entry)
 259                 $entrylist[] = $entry;
 260
 261         foreach (array_reverse($entrylist) AS $entry) {
 262
 263                 $mention = false;
 264
 265                 // fetch the author
 266                 if ($first_child == "feed")
 267                         $author = ostatus_fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
 268                 else
 269                         $author = ostatus_fetchauthor($xpath, $entry, $importer, $contact, false);
 270
 271                 $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 272                 if ($value != "")
 273                         $nickname = $value;
 274                 else
 275                         $nickname = $author["author-name"];
 276
 277                 $item = array_merge($header, $author);
 278
 279                 // Now get the item
 280                 $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 281
 282                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 283                         intval($importer["uid"]), dbesc($item["uri"]));
 284                 if ($r) {
 285                         logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
 286                         continue;
 287                 }
 288
 289                 $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
 290                 $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 291
 292                 if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 293                         $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 294                         $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 295                 } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION)
 296                         $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 297
 298                 $item["object"] = $xml;
 299                 $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 300
 301                 /// @TODO
 302                 /// Delete a message
 303                 if ($item["verb"] == "qvitter-delete-notice") {
 304                         // ignore "Delete" messages (by now)
 305                         logger("Ignore delete message ".print_r($item, true));
 306                         continue;
 307                 }
 308
 309                 if ($item["verb"] == ACTIVITY_JOIN) {
 310                         // ignore "Join" messages
 311                         logger("Ignore join message ".print_r($item, true));
 312                         continue;
 313                 }
 314
 315                 if ($item["verb"] == ACTIVITY_FOLLOW) {
 316                         new_follower($importer, $contact, $item, $nickname);
 317                         continue;
 318                 }
 319
 320                 if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 321                         lose_follower($importer, $contact, $item, $dummy);
 322                         continue;
 323                 }
 324
 325                 if ($item["verb"] == ACTIVITY_FAVORITE) {
 326                         $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 327                         logger("Favorite ".$orig_uri." ".print_r($item, true));
 328
 329                         $item["verb"] = ACTIVITY_LIKE;
 330                         $item["parent-uri"] = $orig_uri;
 331                         $item["gravity"] = GRAVITY_LIKE;
 332                 }
 333
 334                 if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 335                         // Ignore "Unfavorite" message
 336                         logger("Ignore unfavorite message ".print_r($item, true));
 337                         continue;
 338                 }
 339
 340                 // http://activitystrea.ms/schema/1.0/rsvp-yes
 341                 if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE)))
 342                         logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 343
 344                 $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 345                 $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 346                 $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 347
 348                 $related = "";
 349
 350                 $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 351                 if (is_object($inreplyto->item(0))) {
 352                         foreach($inreplyto->item(0)->attributes AS $attributes) {
 353                                 if ($attributes->name == "ref")
 354                                         $item["parent-uri"] = $attributes->textContent;
 355                                 if ($attributes->name == "href")
 356                                         $related = $attributes->textContent;
 357                         }
 358                 }
 359
 360                 $georsspoint = $xpath->query('georss:point', $entry);
 361                 if ($georsspoint)
 362                         $item["coord"] = $georsspoint->item(0)->nodeValue;
 363
 364                 /// @TODO
 365                 /// $item["location"] =
 366
 367                 $categories = $xpath->query('atom:category', $entry);
 368                 if ($categories) {
 369                         foreach ($categories AS $category) {
 370                                 foreach($category->attributes AS $attributes)
 371                                         if ($attributes->name == "term") {
 372                                                 $term = $attributes->textContent;
 373                                                 if(strlen($item["tag"]))
 374                                                         $item["tag"] .= ',';
 375                                                 $item["tag"] .= "#[url=".$a->get_baseurl()."/search?tag=".$term."]".$term."[/url]";
 376                                         }
 377                         }
 378                 }
 379
 380                 $self = "";
 381                 $enclosure = "";
 382
 383                 $links = $xpath->query('atom:link', $entry);
 384                 if ($links) {
 385                         $rel = "";
 386                         $href = "";
 387                         $type = "";
 388                         $length = "0";
 389                         $title = "";
 390                         foreach ($links AS $link) {
 391                                 foreach($link->attributes AS $attributes) {
 392                                         if ($attributes->name == "href")
 393                                                 $href = $attributes->textContent;
 394                                         if ($attributes->name == "rel")
 395                                                 $rel = $attributes->textContent;
 396                                         if ($attributes->name == "type")
 397                                                 $type = $attributes->textContent;
 398                                         if ($attributes->name == "length")
 399                                                 $length = $attributes->textContent;
 400                                         if ($attributes->name == "title")
 401                                                 $title = $attributes->textContent;
 402                                 }
 403                                 if (($rel != "") AND ($href != ""))
 404                                         switch($rel) {
 405                                                 case "alternate":
 406                                                         $item["plink"] = $href;
 407                                                         if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
 408                                                                 ($item["object-type"] == ACTIVITY_OBJ_EVENT))
 409                                                                 $item["body"] .= add_page_info($href);
 410                                                         break;
 411                                                 case "ostatus:conversation":
 412                                                         $conversation = $href;
 413                                                         break;
 414                                                 case "enclosure":
 415                                                         $enclosure = $href;
 416                                                         if(strlen($item["attach"]))
 417                                                                 $item["attach"] .= ',';
 418
 419                                                         $item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'" title="'.$title.'"[/attach]';
 420                                                         break;
 421                                                 case "related":
 422                                                         if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 423                                                                 if (!isset($item["parent-uri"]))
 424                                                                         $item["parent-uri"] = $href;
 425
 426                                                                 if ($related == "")
 427                                                                         $related = $href;
 428                                                         } else
 429                                                                 $item["body"] .= add_page_info($href);
 430                                                         break;
 431                                                 case "self":
 432                                                         $self = $href;
 433                                                         break;
 434                                                 case "mentioned":
 435                                                         // Notification check
 436                                                         if ($importer["nurl"] == normalise_link($href))
 437                                                                 $mention = true;
 438                                                         break;
 439                                         }
 440                         }
 441                 }
 442
 443                 $local_id = "";
 444                 $repeat_of = "";
 445
 446                 $notice_info = $xpath->query('statusnet:notice_info', $entry);
 447                 if ($notice_info AND ($notice_info->length > 0)) {
 448                         foreach($notice_info->item(0)->attributes AS $attributes) {
 449                                 if ($attributes->name == "source")
 450                                         $item["app"] = strip_tags($attributes->textContent);
 451                                 if ($attributes->name == "local_id")
 452                                         $local_id = $attributes->textContent;
 453                                 if ($attributes->name == "repeat_of")
 454                                         $repeat_of = $attributes->textContent;
 455                         }
 456                 }
 457
 458                 // Is it a repeated post?
 459                 if ($repeat_of != "") {
 460                         $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 461
 462                         if (is_object($activityobjects)) {
 463
 464                                 $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
 465                                 if (!isset($orig_uri))
 466                                         $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 467
 468                                 $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
 469                                 if ($orig_links AND ($orig_links->length > 0))
 470                                         foreach($orig_links->item(0)->attributes AS $attributes)
 471                                                 if ($attributes->name == "href")
 472                                                         $orig_link = $attributes->textContent;
 473
 474                                 if (!isset($orig_link))
 475                                         $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
 476
 477                                 if (!isset($orig_link))
 478                                         $orig_link =  ostatus_convert_href($orig_uri);
 479
 480                                 $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
 481                                 if (!isset($orig_body))
 482                                         $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 483
 484                                 $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 485
 486                                 $orig_contact = $contact;
 487                                 $orig_author = ostatus_fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 488
 489                                 //if (!intval(get_config('system','wall-to-wall_share'))) {
 490                                 //      $prefix = share_header($orig_author['author-name'], $orig_author['author-link'], $orig_author['author-avatar'], "", $orig_created, $orig_link);
 491                                 //      $item["body"] = $prefix.add_page_info_to_body(html2bbcode($orig_body))."[/share]";
 492                                 //} else {
 493                                         $item["author-name"] = $orig_author["author-name"];
 494                                         $item["author-link"] = $orig_author["author-link"];
 495                                         $item["author-avatar"] = $orig_author["author-avatar"];
 496                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
 497                                         $item["created"] = $orig_created;
 498
 499                                         $item["uri"] = $orig_uri;
 500                                         $item["plink"] = $orig_link;
 501                                 //}
 502
 503                                 $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 504
 505                                 $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 506                                 if (!isset($item["object-type"]))
 507                                         $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 508                         }
 509                 }
 510
 511                 //if ($enclosure != "")
 512                 //      $item["body"] .= add_page_info($enclosure);
 513
 514                 if (isset($item["parent-uri"])) {
 515                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 516                                 intval($importer["uid"]), dbesc($item["parent-uri"]));
 517
 518                         if (!$r AND ($related != "")) {
 519                                 $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
 520
 521                                 if ($reply_path != $related) {
 522                                         logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
 523                                         $reply_xml = fetch_url($reply_path);
 524
 525                                         $reply_contact = $contact;
 526                                         ostatus_import($reply_xml,$importer,$reply_contact, $reply_hub);
 527
 528                                         // After the import try to fetch the parent item again
 529                                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 530                                                 intval($importer["uid"]), dbesc($item["parent-uri"]));
 531                                 }
 532                         }
 533                         if ($r) {
 534                                 $item["type"] = 'remote-comment';
 535                                 $item["gravity"] = GRAVITY_COMMENT;
 536                         }
 537                 } else
 538                         $item["parent-uri"] = $item["uri"];
 539
 540                 $item_id = ostatus_completion($conversation, $importer["uid"], $item, $self);
 541
 542                 if (!$item_id) {
 543                         logger("Error storing item", LOGGER_DEBUG);
 544                         continue;
 545                 }
 546
 547                 logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
 548         }
 549 }
 550
 551 function ostatus_convert_href($href) {
 552         $elements = explode(":",$href);
 553
 554         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 555                 return $href;
 556
 557         $server = explode(",", $elements[1]);
 558         $conversation = explode("=", $elements[2]);
 559
 560         if ((count($elements) == 4) AND ($elements[2] == "post"))
 561                 return "http://".$server[0]."/notice/".$elements[3];
 562
 563         if ((count($conversation) != 2) OR ($conversation[1] ==""))
 564                 return $href;
 565
 566         if ($elements[3] == "objectType=thread")
 567                 return "http://".$server[0]."/conversation/".$conversation[1];
 568         else
 569                 return "http://".$server[0]."/notice/".$conversation[1];
 570
 571         return $href;
 572 }
 573
 574 function check_conversations($mentions = false, $override = false) {
 575         $last = get_config('system','ostatus_last_poll');
 576
 577         $poll_interval = intval(get_config('system','ostatus_poll_interval'));
 578         if(! $poll_interval)
 579                 $poll_interval = OSTATUS_DEFAULT_POLL_INTERVAL;
 580
 581         // Don't poll if the interval is set negative
 582         if (($poll_interval < 0) AND !$override)
 583                 return;
 584
 585         if (!$mentions) {
 586                 $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 587                 if (!$poll_timeframe)
 588                         $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME;
 589         } else {
 590                 $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 591                 if (!$poll_timeframe)
 592                         $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
 593         }
 594
 595
 596         if ($last AND !$override) {
 597                 $next = $last + ($poll_interval * 60);
 598                 if ($next > time()) {
 599                         logger('poll interval not reached');
 600                         return;
 601                 }
 602         }
 603
 604         logger('cron_start');
 605
 606         $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
 607
 608         if ($mentions)
 609                 $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 610                                         STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 611                                         WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
 612                                         GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
 613         else
 614                 $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 615                                         WHERE `type` = 7 AND `term` > '%s'
 616                                         GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
 617
 618         foreach ($conversations AS $conversation) {
 619                 ostatus_completion($conversation['url'], $conversation['uid']);
 620         }
 621
 622         logger('cron_end');
 623
 624         set_config('system','ostatus_last_poll', time());
 625 }
 626
 627 /**
 628  * @brief Updates the gcontact table with actor data from the conversation
 629  *
 630  * @param object $actor The actor object that contains the contact data
 631  */
 632 function ostatus_conv_fetch_actor($actor) {
 633
 634         // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
 635         $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
 636
 637         if (isset($actor->url))
 638                 $contact["url"] = $actor->url;
 639
 640         if (isset($actor->displayName))
 641                 $contact["name"] = $actor->displayName;
 642
 643         if (isset($actor->portablecontacts_net->displayName))
 644                 $contact["name"] = $actor->portablecontacts_net->displayName;
 645
 646         if (isset($actor->portablecontacts_net->preferredUsername))
 647                 $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
 648
 649         if (isset($actor->id))
 650                 $contact["alias"] = $actor->id;
 651
 652         if (isset($actor->summary))
 653                 $contact["about"] = $actor->summary;
 654
 655         if (isset($actor->portablecontacts_net->note))
 656                 $contact["about"] = $actor->portablecontacts_net->note;
 657
 658         if (isset($actor->portablecontacts_net->addresses->formatted))
 659                 $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
 660
 661
 662         if (isset($actor->image->url))
 663                 $contact["photo"] = $actor->image->url;
 664
 665         if (isset($actor->image->width))
 666                 $avatarwidth = $actor->image->width;
 667
 668         if (is_array($actor->status_net->avatarLinks))
 669                 foreach ($actor->status_net->avatarLinks AS $avatar) {
 670                         if ($avatarsize < $avatar->width) {
 671                                 $contact["photo"] = $avatar->url;
 672                                 $avatarsize = $avatar->width;
 673                         }
 674                 }
 675
 676         update_gcontact($contact);
 677 }
 678
 679 /**
 680  * @brief Fetches the conversation url for a given item link or conversation id
 681  *
 682  * @param string $self The link to the posting
 683  * @param string $conversation_id The conversation id
 684  *
 685  * @return string The conversation url
 686  */
 687 function ostatus_fetch_conversation($self, $conversation_id = "") {
 688
 689         if ($conversation_id != "") {
 690                 $elements = explode(":", $conversation_id);
 691
 692                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 693                         return $conversation_id;
 694         }
 695
 696         if ($self == "")
 697                 return "";
 698
 699         $json = str_replace(".atom", ".json", $self);
 700
 701         $raw = fetch_url($json);
 702         if ($raw == "")
 703                 return "";
 704
 705         $data = json_decode($raw);
 706         if (!is_object($data))
 707                 return "";
 708
 709         $conversation_id = $data->statusnet_conversation_id;
 710
 711         $pos = strpos($self, "/api/statuses/show/");
 712         $base_url = substr($self, 0, $pos);
 713
 714         return $base_url."/conversation/".$conversation_id;
 715 }
 716
 717 /**
 718  * @brief Fetches actor details of a given actor and user id
 719  *
 720  * @param string $actor The actor url
 721  * @param int $uid The user id
 722  *
 723  * @return array Array with actor details
 724  */
 725 function ostatus_get_actor_details($actor, $uid) {
 726
 727         $details = array();
 728
 729         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
 730                                 $uid, normalise_link($actor), NETWORK_STATUSNET);
 731
 732         if (!$contact)
 733                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
 734                                 $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
 735
 736         if ($contact) {
 737                 logger("Found contact for url ".$actor, LOGGER_DEBUG);
 738                 $details["contact_id"] = $contact[0]["id"];
 739                 $details["network"] = $contact[0]["network"];
 740
 741                 $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
 742         } else {
 743                 logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
 744
 745                 // Adding a global contact
 746                 /// @TODO Use this data for the post
 747                 $details["global_contact_id"] = get_contact($actor, 0);
 748
 749                 logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
 750
 751                 $details["contact_id"] = $parent["contact-id"];
 752                 $details["network"] = NETWORK_OSTATUS;
 753
 754                 $details["not_following"] = true;
 755         }
 756
 757         return $details;
 758 }
 759
 760 function ostatus_completion($conversation_url, $uid, $item = array(), $self = "") {
 761
 762         $a = get_app();
 763
 764         $item_stored = -1;
 765
 766         //$conversation_url = ostatus_convert_href($conversation_url);
 767         $conversation_url = ostatus_fetch_conversation($self, $conversation_url);
 768
 769         // If the thread shouldn't be completed then store the item and go away
 770         // Don't do a completion on liked content
 771         if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
 772                 ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
 773                 //$arr["app"] .= " (OStatus-NoCompletion)";
 774                 $item_stored = item_store($item, true);
 775                 return($item_stored);
 776         }
 777
 778         // Get the parent
 779         $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 780                         (SELECT `parent` FROM `item` WHERE `id` IN
 781                                 (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
 782                         intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 783
 784         if ($parents)
 785                 $parent = $parents[0];
 786         elseif (count($item) > 0) {
 787                 $parent = $item;
 788                 $parent["type"] = "remote";
 789                 $parent["verb"] = ACTIVITY_POST;
 790                 $parent["visible"] = 1;
 791         } else {
 792                 // Preset the parent
 793                 $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
 794                 if (!$r)
 795                         return(-2);
 796
 797                 $parent = array();
 798                 $parent["id"] = 0;
 799                 $parent["parent"] = 0;
 800                 $parent["uri"] = "";
 801                 $parent["contact-id"] = $r[0]["id"];
 802                 $parent["type"] = "remote";
 803                 $parent["verb"] = ACTIVITY_POST;
 804                 $parent["visible"] = 1;
 805         }
 806
 807         $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
 808         $pageno = 1;
 809         $items = array();
 810
 811         logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
 812
 813         do {
 814                 $conv_arr = z_fetch_url($conv."?page=".$pageno);
 815
 816                 // If it is a non-ssl site and there is an error, then try ssl or vice versa
 817                 if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
 818                         $conv = str_replace("http://", "https://", $conv);
 819                         $conv_as = fetch_url($conv."?page=".$pageno);
 820                 } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
 821                         $conv = str_replace("https://", "http://", $conv);
 822                         $conv_as = fetch_url($conv."?page=".$pageno);
 823                 } else
 824                         $conv_as = $conv_arr["body"];
 825
 826                 $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
 827                 $conv_as = json_decode($conv_as);
 828
 829                 $no_of_items = sizeof($items);
 830
 831                 if (@is_array($conv_as->items))
 832                         foreach ($conv_as->items AS $single_item)
 833                                 $items[$single_item->id] = $single_item;
 834
 835                 if ($no_of_items == sizeof($items))
 836                         break;
 837
 838                 $pageno++;
 839
 840         } while (true);
 841
 842         logger('fetching conversation done. Found '.count($items).' items');
 843
 844         if (!sizeof($items)) {
 845                 if (count($item) > 0) {
 846                         //$arr["app"] .= " (OStatus-NoConvFetched)";
 847                         $item_stored = item_store($item, true);
 848
 849                         if ($item_stored) {
 850                                 logger("Conversation ".$conversation_url." couldn't be fetched. Item uri ".$item["uri"]." stored: ".$item_stored, LOGGER_DEBUG);
 851                                 ostatus_store_conversation($item_id, $conversation_url);
 852                         }
 853
 854                         return($item_stored);
 855                 } else
 856                         return(-3);
 857         }
 858
 859         $items = array_reverse($items);
 860
 861         $r = q("SELECT `nurl` FROM `contact` WHERE `uid` = %d AND `self`", intval($uid));
 862         $importer = $r[0];
 863
 864         $new_parent = true;
 865
 866         foreach ($items as $single_conv) {
 867
 868                 // Update the gcontact table
 869                 ostatus_conv_fetch_actor($single_conv->actor);
 870
 871                 // Test - remove before flight
 872                 //$tempfile = tempnam(get_temppath(), "conversation");
 873                 //file_put_contents($tempfile, json_encode($single_conv));
 874
 875                 $mention = false;
 876
 877                 if (isset($single_conv->object->id))
 878                         $single_conv->id = $single_conv->object->id;
 879
 880                 $plink = ostatus_convert_href($single_conv->id);
 881                 if (isset($single_conv->object->url))
 882                         $plink = ostatus_convert_href($single_conv->object->url);
 883
 884                 if (@!$single_conv->id)
 885                         continue;
 886
 887                 logger("Got id ".$single_conv->id, LOGGER_DEBUG);
 888
 889                 if ($first_id == "") {
 890                         $first_id = $single_conv->id;
 891
 892                         // The first post of the conversation isn't our first post. There are three options:
 893                         // 1. Our conversation hasn't the "real" thread starter
 894                         // 2. This first post is a post inside our thread
 895                         // 3. This first post is a post inside another thread
 896                         if (($first_id != $parent["uri"]) AND ($parent["uri"] != "")) {
 897
 898                                 $new_parent = true;
 899
 900                                 $new_parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 901                                                         (SELECT `parent` FROM `item`
 902                                                                 WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s')) LIMIT 1",
 903                                         intval($uid), dbesc($first_id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 904                                 if ($new_parents) {
 905                                         if ($new_parents[0]["parent"] == $parent["parent"]) {
 906                                                 // Option 2: This post is already present inside our thread - but not as thread starter
 907                                                 logger("Option 2: uri present in our thread: ".$first_id, LOGGER_DEBUG);
 908                                                 $first_id = $parent["uri"];
 909                                         } else {
 910                                                 // Option 3: Not so good. We have mixed parents. We have to see how to clean this up.
 911                                                 // For now just take the new parent.
 912                                                 $parent = $new_parents[0];
 913                                                 $first_id = $parent["uri"];
 914                                                 logger("Option 3: mixed parents for uri ".$first_id, LOGGER_DEBUG);
 915                                         }
 916                                 } else {
 917                                         // Option 1: We hadn't got the real thread starter
 918                                         // We have to clean up our existing messages.
 919                                         $parent["id"] = 0;
 920                                         $parent["uri"] = $first_id;
 921                                         logger("Option 1: we have a new parent: ".$first_id, LOGGER_DEBUG);
 922                                 }
 923                         } elseif ($parent["uri"] == "") {
 924                                 $parent["id"] = 0;
 925                                 $parent["uri"] = $first_id;
 926                         }
 927                 }
 928
 929                 $parent_uri = $parent["uri"];
 930
 931                 // "context" only seems to exist on older servers
 932                 if (isset($single_conv->context->inReplyTo->id)) {
 933                         $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 934                                                 intval($uid), dbesc($single_conv->context->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 935                         if ($parent_exists)
 936                                 $parent_uri = $single_conv->context->inReplyTo->id;
 937                 }
 938
 939                 // This is the current way
 940                 if (isset($single_conv->object->inReplyTo->id)) {
 941                         $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 942                                                 intval($uid), dbesc($single_conv->object->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 943                         if ($parent_exists)
 944                                 $parent_uri = $single_conv->object->inReplyTo->id;
 945                 }
 946
 947                 $message_exists = q("SELECT `id`, `parent`, `uri` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 948                                                 intval($uid), dbesc($single_conv->id),
 949                                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 950                 if ($message_exists) {
 951                         logger("Message ".$single_conv->id." already existed on the system", LOGGER_DEBUG);
 952
 953                         if ($parent["id"] != 0) {
 954                                 $existing_message = $message_exists[0];
 955
 956                                 // We improved the way we fetch OStatus messages, this shouldn't happen very often now
 957                                 /// @TODO We have to change the shadow copies as well. This way here is really ugly.
 958                                 if ($existing_message["parent"] != $parent["id"]) {
 959                                         logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
 960
 961                                         // Update the parent id of the selected item
 962                                         $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `id` = %d",
 963                                                 intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["id"]));
 964
 965                                         // Update the parent uri in the thread - but only if it points to itself
 966                                         $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE `id` = %d AND `uri` = `thr-parent`",
 967                                                 dbesc($parent_uri), intval($existing_message["id"]));
 968
 969                                         // try to change all items of the same parent
 970                                         $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `parent` = %d",
 971                                                 intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["parent"]));
 972
 973                                         // Update the parent uri in the thread - but only if it points to itself
 974                                         $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE (`parent` = %d) AND (`uri` = `thr-parent`)",
 975                                                 dbesc($parent["uri"]), intval($existing_message["parent"]));
 976
 977                                         // Now delete the thread
 978                                         delete_thread($existing_message["parent"]);
 979                                 }
 980                         }
 981
 982                         // The item we are having on the system is the one that we wanted to store via the item array
 983                         if (isset($item["uri"]) AND ($item["uri"] == $existing_message["uri"])) {
 984                                 $item = array();
 985                                 $item_stored = 0;
 986                         }
 987
 988                         continue;
 989                 }
 990
 991                 if (is_array($single_conv->to))
 992                         foreach($single_conv->to AS $to)
 993                                 if ($importer["nurl"] == normalise_link($to->id))
 994                                         $mention = true;
 995
 996                 $actor = $single_conv->actor->id;
 997                 if (isset($single_conv->actor->url))
 998                         $actor = $single_conv->actor->url;
 999
1000                 $details = ostatus_get_actor_details($actor, $uid);
1001
1002                 // Do we only want to import threads that were started by our contacts?
1003                 if ($details["not_following"] AND $new_parent AND get_config('system','ostatus_full_threads')) {
1004                         logger("Don't import uri ".$first_id." because user ".$uid." doesn't follow the person ".$actor, LOGGER_DEBUG);
1005                         continue;
1006                 }
1007
1008                 $arr = array();
1009                 $arr["network"] = $details["network"];
1010                 $arr["uri"] = $single_conv->id;
1011                 $arr["plink"] = $plink;
1012                 $arr["uid"] = $uid;
1013                 $arr["contact-id"] = $details["contact_id"];
1014                 $arr["parent-uri"] = $parent_uri;
1015                 $arr["created"] = $single_conv->published;
1016                 $arr["edited"] = $single_conv->published;
1017                 $arr["owner-name"] = $single_conv->actor->displayName;
1018                 if ($arr["owner-name"] == '')
1019                         $arr["owner-name"] = $single_conv->actor->contact->displayName;
1020                 if ($arr["owner-name"] == '')
1021                         $arr["owner-name"] = $single_conv->actor->portablecontacts_net->displayName;
1022
1023                 $arr["owner-link"] = $actor;
1024                 $arr["owner-avatar"] = $single_conv->actor->image->url;
1025                 $arr["author-name"] = $arr["owner-name"];
1026                 $arr["author-link"] = $actor;
1027                 $arr["author-avatar"] = $single_conv->actor->image->url;
1028                 $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->content));
1029
1030                 if (isset($single_conv->status_net->notice_info->source))
1031                         $arr["app"] = strip_tags($single_conv->status_net->notice_info->source);
1032                 elseif (isset($single_conv->statusnet->notice_info->source))
1033                         $arr["app"] = strip_tags($single_conv->statusnet->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->provider->displayName))
1037                         $arr["app"] = $single_conv->provider->displayName;
1038                 else
1039                         $arr["app"] = "OStatus";
1040
1041                 //$arr["app"] .= " (Conversation)";
1042
1043                 $arr["object"] = json_encode($single_conv);
1044                 $arr["verb"] = $parent["verb"];
1045                 $arr["visible"] = $parent["visible"];
1046                 $arr["location"] = $single_conv->location->displayName;
1047                 $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1048
1049                 // Is it a reshared item?
1050                 if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1051                         if (is_array($single_conv->object))
1052                                 $single_conv->object = $single_conv->object[0];
1053
1054                         logger("Found reshared item ".$single_conv->object->id);
1055
1056                         // $single_conv->object->context->conversation;
1057
1058                         if (isset($single_conv->object->object->id))
1059                                 $arr["uri"] = $single_conv->object->object->id;
1060                         else
1061                                 $arr["uri"] = $single_conv->object->id;
1062
1063                         if (isset($single_conv->object->object->url))
1064                                 $plink = ostatus_convert_href($single_conv->object->object->url);
1065                         else
1066                                 $plink = ostatus_convert_href($single_conv->object->url);
1067
1068                         if (isset($single_conv->object->object->content))
1069                                 $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1070                         else
1071                                 $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1072
1073                         $arr["plink"] = $plink;
1074
1075                         $arr["created"] = $single_conv->object->published;
1076                         $arr["edited"] = $single_conv->object->published;
1077
1078                         $arr["author-name"] = $single_conv->object->actor->displayName;
1079                         if ($arr["owner-name"] == '')
1080                                 $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1081
1082                         $arr["author-link"] = $single_conv->object->actor->url;
1083                         $arr["author-avatar"] = $single_conv->object->actor->image->url;
1084
1085                         $arr["app"] = $single_conv->object->provider->displayName."#";
1086                         //$arr["verb"] = $single_conv->object->verb;
1087
1088                         $arr["location"] = $single_conv->object->location->displayName;
1089                         $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1090                 }
1091
1092                 if ($arr["location"] == "")
1093                         unset($arr["location"]);
1094
1095                 if ($arr["coord"] == "")
1096                         unset($arr["coord"]);
1097
1098                 // Copy fields from given item array
1099                 if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1100                         $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1101                                                 "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1102                                                 "title", "attach", "app", "type", "location", "contact-id", "uri");
1103                         foreach ($copy_fields AS $field)
1104                                 if (isset($item[$field]))
1105                                         $arr[$field] = $item[$field];
1106
1107                         //$arr["app"] .= " (OStatus)";
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                 ostatus_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($item) > 0)) {
1138                 //$arr["app"] .= " (OStatus-NoConvFound)";
1139
1140                 if (get_config('system','ostatus_full_threads')) {
1141                         $details = ostatus_get_actor_details($item["owner-link"], $uid);
1142                         if ($details["not_following"]) {
1143                                 logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1144                                 return false;
1145                         }
1146                 }
1147
1148                 $item_stored = item_store($item, true);
1149                 if ($item_stored) {
1150                         logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1151                         ostatus_store_conversation($item_stored, $conversation_url);
1152                 }
1153         }
1154
1155         return($item_stored);
1156 }
1157
1158 function ostatus_store_conversation($itemid, $conversation_url) {
1159         global $a;
1160
1161         $conversation_url = ostatus_convert_href($conversation_url);
1162
1163         $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1164         if (!$messages)
1165                 return;
1166         $message = $messages[0];
1167
1168         // Store conversation url if not done before
1169         $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1170                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1171
1172         if (!$conversation) {
1173                 $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1174                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1175                         dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1176                 logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1177         }
1178 }
1179
1180 function get_reshared_guid($item) {
1181         $body = trim($item["body"]);
1182
1183         // Skip if it isn't a pure repeated messages
1184         // Does it start with a share?
1185         if (strpos($body, "[share") > 0)
1186                 return("");
1187
1188         // Does it end with a share?
1189         if (strlen($body) > (strrpos($body, "[/share]") + 8))
1190                 return("");
1191
1192         $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1193         // Skip if there is no shared message in there
1194         if ($body == $attributes)
1195                 return(false);
1196
1197         $guid = "";
1198         preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1199         if ($matches[1] != "")
1200                 $guid = $matches[1];
1201
1202         preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1203         if ($matches[1] != "")
1204                 $guid = $matches[1];
1205
1206         return $guid;
1207 }
1208
1209 function xml_create_element($doc, $element, $value = "", $attributes = array()) {
1210         $element = $doc->createElement($element, xmlify($value));
1211
1212         foreach ($attributes AS $key => $value) {
1213                 $attribute = $doc->createAttribute($key);
1214                 $attribute->value = xmlify($value);
1215                 $element->appendChild($attribute);
1216         }
1217         return $element;
1218 }
1219
1220 function xml_add_element($doc, $parent, $element, $value = "", $attributes = array()) {
1221         $element = xml_create_element($doc, $element, $value, $attributes);
1222         $parent->appendChild($element);
1223 }
1224
1225 function ostatus_format_picture_post($body) {
1226         $siteinfo = get_attached_data($body);
1227
1228         if (($siteinfo["type"] == "photo")) {
1229                 if (isset($siteinfo["preview"]))
1230                         $preview = $siteinfo["preview"];
1231                 else
1232                         $preview = $siteinfo["image"];
1233
1234                 // Is it a remote picture? Then make a smaller preview here
1235                 $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
1236
1237                 // Is it a local picture? Then make it smaller here
1238                 $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
1239                 $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
1240
1241                 if (isset($siteinfo["url"]))
1242                         $url = $siteinfo["url"];
1243                 else
1244                         $url = $siteinfo["image"];
1245
1246                 $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
1247         }
1248
1249         return $body;
1250 }
1251
1252 function ostatus_add_header($doc, $owner) {
1253         $a = get_app();
1254
1255         $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1256         $doc->appendChild($root);
1257
1258         $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1259         $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1260         $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1261         $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1262         $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1263         $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1264         $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1265
1266         $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1267         xml_add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1268         xml_add_element($doc, $root, "id", $a->get_baseurl()."/profile/".$owner["nick"]);
1269         xml_add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1270         xml_add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1271         xml_add_element($doc, $root, "logo", $owner["photo"]);
1272         xml_add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1273
1274         $author = ostatus_add_author($doc, $owner);
1275         $root->appendChild($author);
1276
1277         $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1278         xml_add_element($doc, $root, "link", "", $attributes);
1279
1280         /// @TODO We have to find out what this is
1281         /// $attributes = array("href" => $a->get_baseurl()."/sup",
1282         ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1283         ///             "type" => "application/json");
1284         /// xml_add_element($doc, $root, "link", "", $attributes);
1285
1286         ostatus_hublinks($doc, $root);
1287
1288         $attributes = array("href" => $a->get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1289         xml_add_element($doc, $root, "link", "", $attributes);
1290
1291         $attributes = array("href" => $a->get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1292         xml_add_element($doc, $root, "link", "", $attributes);
1293
1294         $attributes = array("href" => $a->get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1295         xml_add_element($doc, $root, "link", "", $attributes);
1296
1297         $attributes = array("href" => $a->get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1298                         "rel" => "self", "type" => "application/atom+xml");
1299         xml_add_element($doc, $root, "link", "", $attributes);
1300
1301         return $root;
1302 }
1303
1304 function ostatus_hublinks($doc, $root) {
1305         $a = get_app();
1306         $hub = get_config('system','huburl');
1307
1308         $hubxml = '';
1309         if(strlen($hub)) {
1310                 $hubs = explode(',', $hub);
1311                 if(count($hubs)) {
1312                         foreach($hubs as $h) {
1313                                 $h = trim($h);
1314                                 if(! strlen($h))
1315                                         continue;
1316                                 if ($h === '[internal]')
1317                                         $h = $a->get_baseurl() . '/pubsubhubbub';
1318                                 xml_add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1319                         }
1320                 }
1321         }
1322 }
1323
1324 function ostatus_get_attachment($doc, $root, $item) {
1325         $o = "";
1326         $siteinfo = get_attached_data($item["body"]);
1327
1328         switch($siteinfo["type"]) {
1329                 case 'link':
1330                         $attributes = array("rel" => "enclosure",
1331                                         "href" => $siteinfo["url"],
1332                                         "type" => "text/html; charset=UTF-8",
1333                                         "length" => "",
1334                                         "title" => $siteinfo["title"]);
1335                         xml_add_element($doc, $root, "link", "", $attributes);
1336                         break;
1337                 case 'photo':
1338                         $imgdata = get_photo_info($siteinfo["image"]);
1339                         $attributes = array("rel" => "enclosure",
1340                                         "href" => $siteinfo["image"],
1341                                         "type" => $imgdata["mime"],
1342                                         "length" => intval($imgdata["size"]));
1343                         xml_add_element($doc, $root, "link", "", $attributes);
1344                         break;
1345                 case 'video':
1346                         $attributes = array("rel" => "enclosure",
1347                                         "href" => $siteinfo["url"],
1348                                         "type" => "text/html; charset=UTF-8",
1349                                         "length" => "",
1350                                         "title" => $siteinfo["title"]);
1351                         xml_add_element($doc, $root, "link", "", $attributes);
1352                         break;
1353                 default:
1354                         break;
1355         }
1356
1357         if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1358                 $photodata = get_photo_info($siteinfo["image"]);
1359
1360                 $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1361                 xml_add_element($doc, $root, "link", "", $attributes);
1362         }
1363
1364
1365         $arr = explode('[/attach],',$item['attach']);
1366         if(count($arr)) {
1367                 foreach($arr as $r) {
1368                         $matches = false;
1369                         $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1370                         if($cnt) {
1371                                 $attributes = array("rel" => "enclosure",
1372                                                 "href" => $matches[1],
1373                                                 "type" => $matches[3]);
1374
1375                                 if(intval($matches[2]))
1376                                         $attributes["length"] = intval($matches[2]);
1377
1378                                 if(trim($matches[4]) != "")
1379                                         $attributes["title"] = trim($matches[4]);
1380
1381                                 xml_add_element($doc, $root, "link", "", $attributes);
1382                         }
1383                 }
1384         }
1385 }
1386
1387 function ostatus_add_author($doc, $owner) {
1388         $a = get_app();
1389
1390         $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1391         if ($r)
1392                 $profile = $r[0];
1393
1394         $author = $doc->createElement("author");
1395         xml_add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1396         xml_add_element($doc, $author, "uri", $owner["url"]);
1397         xml_add_element($doc, $author, "name", $owner["name"]);
1398
1399         $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1400         xml_add_element($doc, $author, "link", "", $attributes);
1401
1402         $attributes = array(
1403                         "rel" => "avatar",
1404                         "type" => "image/jpeg", // To-Do?
1405                         "media:width" => 175,
1406                         "media:height" => 175,
1407                         "href" => $owner["photo"]);
1408         xml_add_element($doc, $author, "link", "", $attributes);
1409
1410         if (isset($owner["thumb"])) {
1411                 $attributes = array(
1412                                 "rel" => "avatar",
1413                                 "type" => "image/jpeg", // To-Do?
1414                                 "media:width" => 80,
1415                                 "media:height" => 80,
1416                                 "href" => $owner["thumb"]);
1417                 xml_add_element($doc, $author, "link", "", $attributes);
1418         }
1419
1420         xml_add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1421         xml_add_element($doc, $author, "poco:displayName", $owner["name"]);
1422         xml_add_element($doc, $author, "poco:note", $owner["about"]);
1423
1424         if (trim($owner["location"]) != "") {
1425                 $element = $doc->createElement("poco:address");
1426                 xml_add_element($doc, $element, "poco:formatted", $owner["location"]);
1427                 $author->appendChild($element);
1428         }
1429
1430         if (trim($profile["homepage"]) != "") {
1431                 $urls = $doc->createElement("poco:urls");
1432                 xml_add_element($doc, $urls, "poco:type", "homepage");
1433                 xml_add_element($doc, $urls, "poco:value", $profile["homepage"]);
1434                 xml_add_element($doc, $urls, "poco:primary", "true");
1435                 $author->appendChild($urls);
1436         }
1437
1438         if (count($profile)) {
1439                 xml_add_element($doc, $author, "followers", "", array("url" => $a->get_baseurl()."/viewcontacts/".$owner["nick"]));
1440                 xml_add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1441         }
1442
1443         return $author;
1444 }
1445
1446 /**
1447  * @TODO Picture attachments should look like this:
1448  *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1449  *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1450  *
1451 */
1452
1453 function ostatus_entry($doc, $item, $owner, $toplevel = false, $repeat = false) {
1454         $a = get_app();
1455
1456         if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1457                 logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1458         }
1459
1460         $is_repeat = false;
1461
1462 /*      if (!$repeat) {
1463                 $repeated_guid = get_reshared_guid($item);
1464
1465                 if ($repeated_guid != "") {
1466                         $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1467                                 intval($owner["uid"]), dbesc($repeated_guid));
1468                         if ($r) {
1469                                 $repeated_item = $r[0];
1470                                 $is_repeat = true;
1471                         }
1472                 }
1473         }
1474 */
1475         if (!$toplevel AND !$repeat) {
1476                 $entry = $doc->createElement("entry");
1477                 $title = sprintf("New note by %s", $owner["nick"]);
1478         } elseif (!$toplevel AND $repeat) {
1479                 $entry = $doc->createElement("activity:object");
1480                 $title = sprintf("New note by %s", $owner["nick"]);
1481         } else {
1482                 $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1483
1484                 $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1485                 $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1486                 $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1487                 $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1488                 $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1489                 $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1490                 $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1491
1492                 $author = ostatus_add_author($doc, $owner);
1493                 $entry->appendChild($author);
1494
1495                 $title = sprintf("New comment by %s", $owner["nick"]);
1496         }
1497
1498         // To use the object-type "bookmark" we have to implement these elements:
1499         //
1500         // <activity:object-type>http://activitystrea.ms/schema/1.0/bookmark</activity:object-type>
1501         // <title>Historic Rocket Landing</title>
1502         // <summary>Nur ein Testbeitrag.</summary>
1503         // <link rel="related" href="https://www.youtube.com/watch?v=9pillaOxGCo"/>
1504         // <link rel="preview" href="https://pirati.cc/file/thumb-4526-450x338-b48c8055f0c2fed0c3f67adc234c4b99484a90c42ed3cac73dc1081a4d0a7bc1.jpg.jpg" media:width="450" media:height="338"/>
1505         //
1506         // But: it seems as if it doesn't federate well between the GS servers
1507         // So we just set it to "note" to be sure that it reaches their target systems
1508
1509         if (!$repeat)
1510                 xml_add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1511         else
1512                 xml_add_element($doc, $entry, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA.'activity');
1513
1514         xml_add_element($doc, $entry, "id", $item["uri"]);
1515         xml_add_element($doc, $entry, "title", $title);
1516
1517         if($item['allow_cid'] || $item['allow_gid'] || $item['deny_cid'] || $item['deny_gid'])
1518                 $body = fix_private_photos($item['body'],$owner['uid'],$item, 0);
1519         else
1520                 $body = $item['body'];
1521
1522         $body = ostatus_format_picture_post($body);
1523
1524         if ($item['title'] != "")
1525                 $body = "[b]".$item['title']."[/b]\n\n".$body;
1526
1527         //$body = bb_remove_share_information($body);
1528         $body = bbcode($body, false, false, 7);
1529
1530         xml_add_element($doc, $entry, "content", $body, array("type" => "html"));
1531
1532         xml_add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1533                                                         "href" => $a->get_baseurl()."/display/".$item["guid"]));
1534
1535         xml_add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1536
1537         if (!$is_repeat)
1538                 xml_add_element($doc, $entry, "activity:verb", construct_verb($item));
1539         else
1540                 xml_add_element($doc, $entry, "activity:verb", ACTIVITY_SHARE);
1541
1542         xml_add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1543         xml_add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1544
1545         if ($is_repeat) {
1546                 $repeated_owner = array();
1547                 $repeated_owner["name"] = $repeated_item["author-name"];
1548                 $repeated_owner["url"] = $repeated_item["author-link"];
1549                 $repeated_owner["photo"] = $repeated_item["author-avatar"];
1550                 $repeated_owner["nick"] = $repeated_owner["name"];
1551                 $repeated_owner["location"] = "";
1552                 $repeated_owner["about"] = "";
1553                 $repeated_owner["uid"] = 0;
1554
1555                 // Fetch the missing data from the global contacts
1556                 $r =q("SELECT * FROM `gcontact` WHERE `nurl` = '%s'", normalise_link($repeated_item["author-link"]));
1557                 if ($r) {
1558                         if ($r[0]["nick"] != "")
1559                                 $repeated_owner["nick"] = $r[0]["nick"];
1560
1561                         $repeated_owner["location"] = $r[0]["location"];
1562                         $repeated_owner["about"] = $r[0]["about"];
1563                 }
1564
1565                 $entry_repeat = ostatus_entry($doc, $repeated_item, $repeated_owner, false, true);
1566                 $entry->appendChild($entry_repeat);
1567         } elseif ($repeat) {
1568                 $author = ostatus_add_author($doc, $owner);
1569                 $entry->appendChild($author);
1570         }
1571
1572         $mentioned = array();
1573
1574         if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1575                 $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1576                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1577
1578                 $attributes = array(
1579                                 "ref" => $parent_item,
1580                                 "type" => "text/html",
1581                                 "href" => $a->get_baseurl()."/display/".$parent[0]["guid"]);
1582                 xml_add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1583
1584                 $attributes = array(
1585                                 "rel" => "related",
1586                                 "href" => $a->get_baseurl()."/display/".$parent[0]["guid"]);
1587                 xml_add_element($doc, $entry, "link", "", $attributes);
1588
1589                 $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1590                 $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1591
1592                 $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
1593                                 intval($owner["uid"]),
1594                                 dbesc($parent_item));
1595                 if ($thrparent) {
1596                         $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
1597                         $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
1598                 }
1599         }
1600
1601         xml_add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation",
1602                                                         "href" => $a->get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]));
1603         xml_add_element($doc, $entry, "ostatus:conversation", $a->get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]);
1604
1605         $tags = item_getfeedtags($item);
1606
1607         if(count($tags))
1608                 foreach($tags as $t)
1609                         if ($t[0] == "@")
1610                                 $mentioned[$t[1]] = $t[1];
1611
1612         // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1613         $newmentions = array();
1614         foreach ($mentioned AS $mention) {
1615                 $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
1616                 $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
1617         }
1618         $mentioned = $newmentions;
1619
1620         foreach ($mentioned AS $mention) {
1621                 $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1622                         intval($owner["uid"]),
1623                         dbesc(normalise_link($mention)));
1624                 if ($r[0]["forum"] OR $r[0]["prv"])
1625                         xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1626                                                                                 "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
1627                                                                                 "href" => $mention));
1628                 else
1629                         xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1630                                                                                 "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
1631                                                                                 "href" => $mention));
1632         }
1633
1634         if (!$item["private"])
1635                 xml_add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1636                                                                 "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
1637                                                                 "href" => "http://activityschema.org/collection/public"));
1638
1639         if(count($tags))
1640                 foreach($tags as $t)
1641                         if ($t[0] != "@")
1642                                 xml_add_element($doc, $entry, "category", "", array("term" => $t[2]));
1643
1644         ostatus_get_attachment($doc, $entry, $item);
1645
1646         /// @TODO
1647         /// The API call has yet to be implemented
1648         //$attributes = array("href" => $a->get_baseurl()."/api/statuses/show/".$item["id"].".atom",
1649         //              "rel" => "self", "type" => "application/atom+xml");
1650         //xml_add_element($doc, $entry, "link", "", $attributes);
1651
1652         //$attributes = array("href" => $a->get_baseurl()."/api/statuses/show/".$item["id"].".atom",
1653         //              "rel" => "edit", "type" => "application/atom+xml");
1654         //xml_add_element($doc, $entry, "link", "", $attributes);
1655
1656         $app = $item["app"];
1657         if ($app == "")
1658                 $app = "web";
1659
1660
1661         $attributes = array("local_id" => $item["id"], "source" => $app);
1662         if ($is_repeat)
1663                 $attributes["repeat_of"] = $repeated_item["id"];
1664
1665         xml_add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
1666
1667         return $entry;
1668 }
1669
1670 function ostatus_feed(&$a, $owner_nick, $last_update) {
1671
1672         $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
1673                         FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
1674                         WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
1675                         dbesc($owner_nick));
1676         if (!$r)
1677                 return;
1678
1679         $owner = $r[0];
1680
1681         if(!strlen($last_update))
1682                 $last_update = 'now -30 days';
1683
1684         $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
1685
1686         $items = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id` FROM `item`
1687                         INNER JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1688                         LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
1689                         WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
1690                                 AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1691                                 AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
1692                                         OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
1693                                 AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
1694                                         OR (`item`.`author-link` IN ('%s', '%s')))
1695                         ORDER BY `item`.`received` DESC
1696                         LIMIT 0, 300",
1697                         intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
1698                         //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1699                         //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1700                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1701                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1702                         dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
1703                         dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
1704                 );
1705
1706         $doc = new DOMDocument('1.0', 'utf-8');
1707         $doc->formatOutput = true;
1708
1709         $root = ostatus_add_header($doc, $owner);
1710
1711         foreach ($items AS $item) {
1712                 $entry = ostatus_entry($doc, $item, $owner);
1713                 $root->appendChild($entry);
1714         }
1715
1716         return(trim($doc->saveXML()));
1717 }
1718
1719 function ostatus_salmon($item,$owner) {
1720
1721         $doc = new DOMDocument('1.0', 'utf-8');
1722         $doc->formatOutput = true;
1723
1724         $entry = ostatus_entry($doc, $item, $owner, true);
1725
1726         $doc->appendChild($entry);
1727
1728         return(trim($doc->saveXML()));
1729 }
1730 ?>