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 Fetches author data
  32          *
  33          * @param object $xpath The xpath object
  34          * @param object $context The xml context of the author detals
  35          * @param array $importer user record of the importing user
  36          * @param array $contact Called by reference, will contain the fetched contact
  37          * @param bool $onlyfetch Only fetch the header without updating the contact entries
  38          *
  39          * @return array Array of author related entries for the item
  40          */
  41         private function fetchauthor($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 Fetches author data from a given XML string
 148          *
 149          * @param string $xml The XML
 150          * @param array $importer user record of the importing user
 151          *
 152          * @return array Array of author related entries for the item
 153          */
 154         public static function salmon_author($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 Imports an XML string containing OStatus elements
 183          *
 184          * @param string $xml The XML
 185          * @param array $importer user record of the importing user
 186          * @param $contact
 187          * @param array $hub Called by reference, returns the fetched hub data
 188          */
 189         public static function import($xml,$importer,&$contact, &$hub) {
 190                 /// @todo this function is too long. It has to be split in many parts
 191
 192                 logger("Import OStatus message", LOGGER_DEBUG);
 193
 194                 if ($xml == "")
 195                         return;
 196
 197                 //$tempfile = tempnam(get_temppath(), "import");
 198                 //file_put_contents($tempfile, $xml);
 199
 200                 $doc = new DOMDocument();
 201                 @$doc->loadXML($xml);
 202
 203                 $xpath = new DomXPath($doc);
 204                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 205                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 206                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 207                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 208                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 209                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 210                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 211                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 212
 213                 $gub = "";
 214                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
 215                 if (is_object($hub_attributes))
 216                         foreach($hub_attributes AS $hub_attribute)
 217                                 if ($hub_attribute->name == "href") {
 218                                         $hub = $hub_attribute->textContent;
 219                                         logger("Found hub ".$hub, LOGGER_DEBUG);
 220                                 }
 221
 222                 $header = array();
 223                 $header["uid"] = $importer["uid"];
 224                 $header["network"] = NETWORK_OSTATUS;
 225                 $header["type"] = "remote";
 226                 $header["wall"] = 0;
 227                 $header["origin"] = 0;
 228                 $header["gravity"] = GRAVITY_PARENT;
 229
 230                 // it could either be a received post or a post we fetched by ourselves
 231                 // depending on that, the first node is different
 232                 $first_child = $doc->firstChild->tagName;
 233
 234                 if ($first_child == "feed")
 235                         $entries = $xpath->query('/atom:feed/atom:entry');
 236                 else
 237                         $entries = $xpath->query('/atom:entry');
 238
 239                 $conversation = "";
 240                 $conversationlist = array();
 241                 $item_id = 0;
 242
 243                 // Reverse the order of the entries
 244                 $entrylist = array();
 245
 246                 foreach ($entries AS $entry)
 247                         $entrylist[] = $entry;
 248
 249                 foreach (array_reverse($entrylist) AS $entry) {
 250
 251                         $mention = false;
 252
 253                         // fetch the author
 254                         if ($first_child == "feed")
 255                                 $author = self::fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
 256                         else
 257                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, false);
 258
 259                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 260                         if ($value != "")
 261                                 $nickname = $value;
 262                         else
 263                                 $nickname = $author["author-name"];
 264
 265                         $item = array_merge($header, $author);
 266
 267                         // Now get the item
 268                         $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 269
 270                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 271                                 intval($importer["uid"]), dbesc($item["uri"]));
 272                         if ($r) {
 273                                 logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
 274                                 continue;
 275                         }
 276
 277                         $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
 278                         $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 279
 280                         if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 281                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 282                                 $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 283                         } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION)
 284                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 285
 286                         $item["object"] = $xml;
 287                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 288
 289                         /// @TODO
 290                         /// Delete a message
 291                         if ($item["verb"] == "qvitter-delete-notice") {
 292                                 // ignore "Delete" messages (by now)
 293                                 logger("Ignore delete message ".print_r($item, true));
 294                                 continue;
 295                         }
 296
 297                         if ($item["verb"] == ACTIVITY_JOIN) {
 298                                 // ignore "Join" messages
 299                                 logger("Ignore join message ".print_r($item, true));
 300                                 continue;
 301                         }
 302
 303                         if ($item["verb"] == ACTIVITY_FOLLOW) {
 304                                 new_follower($importer, $contact, $item, $nickname);
 305                                 continue;
 306                         }
 307
 308                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 309                                 lose_follower($importer, $contact, $item, $dummy);
 310                                 continue;
 311                         }
 312
 313                         if ($item["verb"] == ACTIVITY_FAVORITE) {
 314                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 315                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
 316
 317                                 $item["verb"] = ACTIVITY_LIKE;
 318                                 $item["parent-uri"] = $orig_uri;
 319                                 $item["gravity"] = GRAVITY_LIKE;
 320                         }
 321
 322                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 323                                 // Ignore "Unfavorite" message
 324                                 logger("Ignore unfavorite message ".print_r($item, true));
 325                                 continue;
 326                         }
 327
 328                         // http://activitystrea.ms/schema/1.0/rsvp-yes
 329                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE)))
 330                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 331
 332                         $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 333                         $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 334                         $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 335
 336                         $related = "";
 337
 338                         $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 339                         if (is_object($inreplyto->item(0))) {
 340                                 foreach($inreplyto->item(0)->attributes AS $attributes) {
 341                                         if ($attributes->name == "ref")
 342                                                 $item["parent-uri"] = $attributes->textContent;
 343                                         if ($attributes->name == "href")
 344                                                 $related = $attributes->textContent;
 345                                 }
 346                         }
 347
 348                         $georsspoint = $xpath->query('georss:point', $entry);
 349                         if ($georsspoint)
 350                                 $item["coord"] = $georsspoint->item(0)->nodeValue;
 351
 352                         $categories = $xpath->query('atom:category', $entry);
 353                         if ($categories) {
 354                                 foreach ($categories AS $category) {
 355                                         foreach($category->attributes AS $attributes)
 356                                                 if ($attributes->name == "term") {
 357                                                         $term = $attributes->textContent;
 358                                                         if(strlen($item["tag"]))
 359                                                                 $item["tag"] .= ',';
 360                                                         $item["tag"] .= "#[url=".App::get_baseurl()."/search?tag=".$term."]".$term."[/url]";
 361                                                 }
 362                                 }
 363                         }
 364
 365                         $self = "";
 366                         $enclosure = "";
 367
 368                         $links = $xpath->query('atom:link', $entry);
 369                         if ($links) {
 370                                 $rel = "";
 371                                 $href = "";
 372                                 $type = "";
 373                                 $length = "0";
 374                                 $title = "";
 375                                 foreach ($links AS $link) {
 376                                         foreach($link->attributes AS $attributes) {
 377                                                 if ($attributes->name == "href")
 378                                                         $href = $attributes->textContent;
 379                                                 if ($attributes->name == "rel")
 380                                                         $rel = $attributes->textContent;
 381                                                 if ($attributes->name == "type")
 382                                                         $type = $attributes->textContent;
 383                                                 if ($attributes->name == "length")
 384                                                         $length = $attributes->textContent;
 385                                                 if ($attributes->name == "title")
 386                                                         $title = $attributes->textContent;
 387                                         }
 388                                         if (($rel != "") AND ($href != ""))
 389                                                 switch($rel) {
 390                                                         case "alternate":
 391                                                                 $item["plink"] = $href;
 392                                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
 393                                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT))
 394                                                                         $item["body"] .= add_page_info($href);
 395                                                                 break;
 396                                                         case "ostatus:conversation":
 397                                                                 $conversation = $href;
 398                                                                 break;
 399                                                         case "enclosure":
 400                                                                 $enclosure = $href;
 401                                                                 if(strlen($item["attach"]))
 402                                                                         $item["attach"] .= ',';
 403
 404                                                                 $item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'" title="'.$title.'"[/attach]';
 405                                                                 break;
 406                                                         case "related":
 407                                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 408                                                                         if (!isset($item["parent-uri"]))
 409                                                                                 $item["parent-uri"] = $href;
 410
 411                                                                         if ($related == "")
 412                                                                                 $related = $href;
 413                                                                 } else
 414                                                                         $item["body"] .= add_page_info($href);
 415                                                                 break;
 416                                                         case "self":
 417                                                                 $self = $href;
 418                                                                 break;
 419                                                         case "mentioned":
 420                                                                 // Notification check
 421                                                                 if ($importer["nurl"] == normalise_link($href))
 422                                                                         $mention = true;
 423                                                                 break;
 424                                                 }
 425                                 }
 426                         }
 427
 428                         $local_id = "";
 429                         $repeat_of = "";
 430
 431                         $notice_info = $xpath->query('statusnet:notice_info', $entry);
 432                         if ($notice_info AND ($notice_info->length > 0)) {
 433                                 foreach($notice_info->item(0)->attributes AS $attributes) {
 434                                         if ($attributes->name == "source")
 435                                                 $item["app"] = strip_tags($attributes->textContent);
 436                                         if ($attributes->name == "local_id")
 437                                                 $local_id = $attributes->textContent;
 438                                         if ($attributes->name == "repeat_of")
 439                                                 $repeat_of = $attributes->textContent;
 440                                 }
 441                         }
 442
 443                         // Is it a repeated post?
 444                         if ($repeat_of != "") {
 445                                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 446
 447                                 if (is_object($activityobjects)) {
 448
 449                                         $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
 450                                         if (!isset($orig_uri))
 451                                                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 452
 453                                         $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
 454                                         if ($orig_links AND ($orig_links->length > 0))
 455                                                 foreach($orig_links->item(0)->attributes AS $attributes)
 456                                                         if ($attributes->name == "href")
 457                                                                 $orig_link = $attributes->textContent;
 458
 459                                         if (!isset($orig_link))
 460                                                 $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
 461
 462                                         if (!isset($orig_link))
 463                                                 $orig_link =  self::convert_href($orig_uri);
 464
 465                                         $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
 466                                         if (!isset($orig_body))
 467                                                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 468
 469                                         $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 470
 471                                         $orig_contact = $contact;
 472                                         $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 473
 474                                         $item["author-name"] = $orig_author["author-name"];
 475                                         $item["author-link"] = $orig_author["author-link"];
 476                                         $item["author-avatar"] = $orig_author["author-avatar"];
 477                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
 478                                         $item["created"] = $orig_created;
 479
 480                                         $item["uri"] = $orig_uri;
 481                                         $item["plink"] = $orig_link;
 482
 483                                         $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 484
 485                                         $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 486                                         if (!isset($item["object-type"]))
 487                                                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 488                                 }
 489                         }
 490
 491                         //if ($enclosure != "")
 492                         //      $item["body"] .= add_page_info($enclosure);
 493
 494                         if (isset($item["parent-uri"])) {
 495                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 496                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 497
 498                                 if (!$r AND ($related != "")) {
 499                                         $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
 500
 501                                         if ($reply_path != $related) {
 502                                                 logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
 503                                                 $reply_xml = fetch_url($reply_path);
 504
 505                                                 $reply_contact = $contact;
 506                                                 self::import($reply_xml,$importer,$reply_contact, $reply_hub);
 507
 508                                                 // After the import try to fetch the parent item again
 509                                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 510                                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 511                                         }
 512                                 }
 513                                 if ($r) {
 514                                         $item["type"] = 'remote-comment';
 515                                         $item["gravity"] = GRAVITY_COMMENT;
 516                                 }
 517                         } else
 518                                 $item["parent-uri"] = $item["uri"];
 519
 520                         $item_id = self::completion($conversation, $importer["uid"], $item, $self);
 521
 522                         if (!$item_id) {
 523                                 logger("Error storing item", LOGGER_DEBUG);
 524                                 continue;
 525                         }
 526
 527                         logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
 528                 }
 529         }
 530
 531         /**
 532          * @brief Create an url out of an uri
 533          *
 534          * @param string $href URI in the format "parameter1:parameter1:..."
 535          *
 536          * @return string URL in the format http(s)://....
 537          */
 538         public static function convert_href($href) {
 539                 $elements = explode(":",$href);
 540
 541                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 542                         return $href;
 543
 544                 $server = explode(",", $elements[1]);
 545                 $conversation = explode("=", $elements[2]);
 546
 547                 if ((count($elements) == 4) AND ($elements[2] == "post"))
 548                         return "http://".$server[0]."/notice/".$elements[3];
 549
 550                 if ((count($conversation) != 2) OR ($conversation[1] ==""))
 551                         return $href;
 552
 553                 if ($elements[3] == "objectType=thread")
 554                         return "http://".$server[0]."/conversation/".$conversation[1];
 555                 else
 556                         return "http://".$server[0]."/notice/".$conversation[1];
 557
 558                 return $href;
 559         }
 560
 561         /**
 562          * @brief Checks if there are entries in conversations that aren't present on our side
 563          *
 564          * @param bool $mentions Fetch conversations where we are mentioned
 565          * @param bool $override Override the interval setting
 566          */
 567         public static function check_conversations($mentions = false, $override = false) {
 568                 $last = get_config('system','ostatus_last_poll');
 569
 570                 $poll_interval = intval(get_config('system','ostatus_poll_interval'));
 571                 if(! $poll_interval)
 572                         $poll_interval = OSTATUS_DEFAULT_POLL_INTERVAL;
 573
 574                 // Don't poll if the interval is set negative
 575                 if (($poll_interval < 0) AND !$override)
 576                         return;
 577
 578                 if (!$mentions) {
 579                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 580                         if (!$poll_timeframe)
 581                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME;
 582                 } else {
 583                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 584                         if (!$poll_timeframe)
 585                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
 586                 }
 587
 588
 589                 if ($last AND !$override) {
 590                         $next = $last + ($poll_interval * 60);
 591                         if ($next > time()) {
 592                                 logger('poll interval not reached');
 593                                 return;
 594                         }
 595                 }
 596
 597                 logger('cron_start');
 598
 599                 $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
 600
 601                 if ($mentions)
 602                         $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 603                                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 604                                                 WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
 605                                                 GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
 606                 else
 607                         $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 608                                                 WHERE `type` = 7 AND `term` > '%s'
 609                                                 GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
 610
 611                 foreach ($conversations AS $conversation) {
 612                         self::completion($conversation['url'], $conversation['uid']);
 613                 }
 614
 615                 logger('cron_end');
 616
 617                 set_config('system','ostatus_last_poll', time());
 618         }
 619
 620         /**
 621          * @brief Updates the gcontact table with actor data from the conversation
 622          *
 623          * @param object $actor The actor object that contains the contact data
 624          */
 625         private function conv_fetch_actor($actor) {
 626
 627                 // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
 628                 $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
 629
 630                 if (isset($actor->url))
 631                         $contact["url"] = $actor->url;
 632
 633                 if (isset($actor->displayName))
 634                         $contact["name"] = $actor->displayName;
 635
 636                 if (isset($actor->portablecontacts_net->displayName))
 637                         $contact["name"] = $actor->portablecontacts_net->displayName;
 638
 639                 if (isset($actor->portablecontacts_net->preferredUsername))
 640                         $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
 641
 642                 if (isset($actor->id))
 643                         $contact["alias"] = $actor->id;
 644
 645                 if (isset($actor->summary))
 646                         $contact["about"] = $actor->summary;
 647
 648                 if (isset($actor->portablecontacts_net->note))
 649                         $contact["about"] = $actor->portablecontacts_net->note;
 650
 651                 if (isset($actor->portablecontacts_net->addresses->formatted))
 652                         $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
 653
 654
 655                 if (isset($actor->image->url))
 656                         $contact["photo"] = $actor->image->url;
 657
 658                 if (isset($actor->image->width))
 659                         $avatarwidth = $actor->image->width;
 660
 661                 if (is_array($actor->status_net->avatarLinks))
 662                         foreach ($actor->status_net->avatarLinks AS $avatar) {
 663                                 if ($avatarsize < $avatar->width) {
 664                                         $contact["photo"] = $avatar->url;
 665                                         $avatarsize = $avatar->width;
 666                                 }
 667                         }
 668
 669                 update_gcontact($contact);
 670         }
 671
 672         /**
 673          * @brief Fetches the conversation url for a given item link or conversation id
 674          *
 675          * @param string $self The link to the posting
 676          * @param string $conversation_id The conversation id
 677          *
 678          * @return string The conversation url
 679          */
 680         private function fetch_conversation($self, $conversation_id = "") {
 681
 682                 if ($conversation_id != "") {
 683                         $elements = explode(":", $conversation_id);
 684
 685                         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 686                                 return $conversation_id;
 687                 }
 688
 689                 if ($self == "")
 690                         return "";
 691
 692                 $json = str_replace(".atom", ".json", $self);
 693
 694                 $raw = fetch_url($json);
 695                 if ($raw == "")
 696                         return "";
 697
 698                 $data = json_decode($raw);
 699                 if (!is_object($data))
 700                         return "";
 701
 702                 $conversation_id = $data->statusnet_conversation_id;
 703
 704                 $pos = strpos($self, "/api/statuses/show/");
 705                 $base_url = substr($self, 0, $pos);
 706
 707                 return $base_url."/conversation/".$conversation_id;
 708         }
 709
 710         /**
 711          * @brief Fetches actor details of a given actor and user id
 712          *
 713          * @param string $actor The actor url
 714          * @param int $uid The user id
 715          * @param int $contact_id The default contact-id
 716          *
 717          * @return array Array with actor details
 718          */
 719         private function get_actor_details($actor, $uid, $contact_id) {
 720
 721                 $details = array();
 722
 723                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
 724                                         $uid, normalise_link($actor), NETWORK_STATUSNET);
 725
 726                 if (!$contact)
 727                         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
 728                                         $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
 729
 730                 if ($contact) {
 731                         logger("Found contact for url ".$actor, LOGGER_DEBUG);
 732                         $details["contact_id"] = $contact[0]["id"];
 733                         $details["network"] = $contact[0]["network"];
 734
 735                         $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
 736                 } else {
 737                         logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
 738
 739                         // Adding a global contact
 740                         /// @TODO Use this data for the post
 741                         $details["global_contact_id"] = get_contact($actor, 0);
 742
 743                         logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
 744
 745                         $details["contact_id"] = $contact_id;
 746                         $details["network"] = NETWORK_OSTATUS;
 747
 748                         $details["not_following"] = true;
 749                 }
 750
 751                 return $details;
 752         }
 753
 754         /**
 755          * @brief Stores an item and completes the thread
 756          *
 757          * @param string $conversation_url The URI of the conversation
 758          * @param integer $uid The user id
 759          * @param array $item Data of the item that is to be posted
 760          *
 761          * @return integer The item id of the posted item array
 762          */
 763         private function completion($conversation_url, $uid, $item = array(), $self = "") {
 764
 765                 /// @todo This function is totally ugly and has to be rewritten totally
 766
 767                 $item_stored = -1;
 768
 769                 $conversation_url = self::fetch_conversation($self, $conversation_url);
 770
 771                 // If the thread shouldn't be completed then store the item and go away
 772                 // Don't do a completion on liked content
 773                 if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
 774                         ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
 775                         $item_stored = item_store($item, true);
 776                         return($item_stored);
 777                 }
 778
 779                 // Get the parent
 780                 $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 781                                 (SELECT `parent` FROM `item` WHERE `id` IN
 782                                         (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
 783                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 784
 785                 if ($parents)
 786                         $parent = $parents[0];
 787                 elseif (count($item) > 0) {
 788                         $parent = $item;
 789                         $parent["type"] = "remote";
 790                         $parent["verb"] = ACTIVITY_POST;
 791                         $parent["visible"] = 1;
 792                 } else {
 793                         // Preset the parent
 794                         $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
 795                         if (!$r)
 796                                 return(-2);
 797
 798                         $parent = array();
 799                         $parent["id"] = 0;
 800                         $parent["parent"] = 0;
 801                         $parent["uri"] = "";
 802                         $parent["contact-id"] = $r[0]["id"];
 803                         $parent["type"] = "remote";
 804                         $parent["verb"] = ACTIVITY_POST;
 805                         $parent["visible"] = 1;
 806                 }
 807
 808                 $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
 809                 $pageno = 1;
 810                 $items = array();
 811
 812                 logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
 813
 814                 do {
 815                         $conv_arr = z_fetch_url($conv."?page=".$pageno);
 816
 817                         // If it is a non-ssl site and there is an error, then try ssl or vice versa
 818                         if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
 819                                 $conv = str_replace("http://", "https://", $conv);
 820                                 $conv_as = fetch_url($conv."?page=".$pageno);
 821                         } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
 822                                 $conv = str_replace("https://", "http://", $conv);
 823                                 $conv_as = fetch_url($conv."?page=".$pageno);
 824                         } else
 825                                 $conv_as = $conv_arr["body"];
 826
 827                         $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
 828                         $conv_as = json_decode($conv_as);
 829
 830                         $no_of_items = sizeof($items);
 831
 832                         if (@is_array($conv_as->items))
 833                                 foreach ($conv_as->items AS $single_item)
 834                                         $items[$single_item->id] = $single_item;
 835
 836                         if ($no_of_items == sizeof($items))
 837                                 break;
 838
 839                         $pageno++;
 840
 841                 } while (true);
 842
 843                 logger('fetching conversation done. Found '.count($items).' items');
 844
 845                 if (!sizeof($items)) {
 846                         if (count($item) > 0) {
 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                                         self::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 $single_conv) {
 867
 868                         // Update the gcontact table
 869                         self::conv_fetch_actor($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                         $plink = self::convert_href($single_conv->id);
 881                         if (isset($single_conv->object->url))
 882                                 $plink = self::convert_href($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                         $details = self::get_actor_details($actor, $uid, $parent["contact-id"]);
1001
1002                         // Do we only want to import threads that were started by our contacts?
1003                         if ($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
1042                         $arr["object"] = json_encode($single_conv);
1043                         $arr["verb"] = $parent["verb"];
1044                         $arr["visible"] = $parent["visible"];
1045                         $arr["location"] = $single_conv->location->displayName;
1046                         $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1047
1048                         // Is it a reshared item?
1049                         if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1050                                 if (is_array($single_conv->object))
1051                                         $single_conv->object = $single_conv->object[0];
1052
1053                                 logger("Found reshared item ".$single_conv->object->id);
1054
1055                                 // $single_conv->object->context->conversation;
1056
1057                                 if (isset($single_conv->object->object->id))
1058                                         $arr["uri"] = $single_conv->object->object->id;
1059                                 else
1060                                         $arr["uri"] = $single_conv->object->id;
1061
1062                                 if (isset($single_conv->object->object->url))
1063                                         $plink = self::convert_href($single_conv->object->object->url);
1064                                 else
1065                                         $plink = self::convert_href($single_conv->object->url);
1066
1067                                 if (isset($single_conv->object->object->content))
1068                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1069                                 else
1070                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1071
1072                                 $arr["plink"] = $plink;
1073
1074                                 $arr["created"] = $single_conv->object->published;
1075                                 $arr["edited"] = $single_conv->object->published;
1076
1077                                 $arr["author-name"] = $single_conv->object->actor->displayName;
1078                                 if ($arr["owner-name"] == '')
1079                                         $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1080
1081                                 $arr["author-link"] = $single_conv->object->actor->url;
1082                                 $arr["author-avatar"] = $single_conv->object->actor->image->url;
1083
1084                                 $arr["app"] = $single_conv->object->provider->displayName."#";
1085                                 //$arr["verb"] = $single_conv->object->verb;
1086
1087                                 $arr["location"] = $single_conv->object->location->displayName;
1088                                 $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1089                         }
1090
1091                         if ($arr["location"] == "")
1092                                 unset($arr["location"]);
1093
1094                         if ($arr["coord"] == "")
1095                                 unset($arr["coord"]);
1096
1097                         // Copy fields from given item array
1098                         if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1099                                 $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1100                                                         "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1101                                                         "title", "attach", "app", "type", "location", "contact-id", "uri");
1102                                 foreach ($copy_fields AS $field)
1103                                         if (isset($item[$field]))
1104                                                 $arr[$field] = $item[$field];
1105
1106                         }
1107
1108                         $newitem = item_store($arr);
1109                         if (!$newitem) {
1110                                 logger("Item wasn't stored ".print_r($arr, true), LOGGER_DEBUG);
1111                                 continue;
1112                         }
1113
1114                         if (isset($item["uri"]) AND ($item["uri"] == $arr["uri"])) {
1115                                 $item = array();
1116                                 $item_stored = $newitem;
1117                         }
1118
1119                         logger('Stored new item '.$plink.' for parent '.$arr["parent-uri"].' under id '.$newitem, LOGGER_DEBUG);
1120
1121                         // Add the conversation entry (but don't fetch the whole conversation)
1122                         self::store_conversation($newitem, $conversation_url);
1123
1124                         // If the newly created item is the top item then change the parent settings of the thread
1125                         // This shouldn't happen anymore. This is supposed to be absolote.
1126                         if ($arr["uri"] == $first_id) {
1127                                 logger('setting new parent to id '.$newitem);
1128                                 $new_parents = q("SELECT `id`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
1129                                         intval($uid), intval($newitem));
1130                                 if ($new_parents)
1131                                         $parent = $new_parents[0];
1132                         }
1133                 }
1134
1135                 if (($item_stored < 0) AND (count($item) > 0)) {
1136
1137                         if (get_config('system','ostatus_full_threads')) {
1138                                 $details = self::get_actor_details($item["owner-link"], $uid, $item["contact-id"]);
1139                                 if ($details["not_following"]) {
1140                                         logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1141                                         return false;
1142                                 }
1143                         }
1144
1145                         $item_stored = item_store($item, true);
1146                         if ($item_stored) {
1147                                 logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1148                                 self::store_conversation($item_stored, $conversation_url);
1149                         }
1150                 }
1151
1152                 return($item_stored);
1153         }
1154
1155         /**
1156          * @brief Stores conversation data into the database
1157          *
1158          * @param integer $itemid The id of the item
1159          * @param string $conversation_url The uri of the conversation
1160          */
1161         private function store_conversation($itemid, $conversation_url) {
1162
1163                 $conversation_url = self::convert_href($conversation_url);
1164
1165                 $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1166                 if (!$messages)
1167                         return;
1168                 $message = $messages[0];
1169
1170                 // Store conversation url if not done before
1171                 $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1172                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1173
1174                 if (!$conversation) {
1175                         $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1176                                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1177                                 dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1178                         logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1179                 }
1180         }
1181
1182         /**
1183          * @brief Checks if the current post is a reshare
1184          *
1185          * @param array $item The item array of thw post
1186          *
1187          * @return string The guid if the post is a reshare
1188          */
1189         private function get_reshared_guid($item) {
1190                 $body = trim($item["body"]);
1191
1192                 // Skip if it isn't a pure repeated messages
1193                 // Does it start with a share?
1194                 if (strpos($body, "[share") > 0)
1195                         return("");
1196
1197                 // Does it end with a share?
1198                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
1199                         return("");
1200
1201                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1202                 // Skip if there is no shared message in there
1203                 if ($body == $attributes)
1204                         return(false);
1205
1206                 $guid = "";
1207                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1208                 if ($matches[1] != "")
1209                         $guid = $matches[1];
1210
1211                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1212                 if ($matches[1] != "")
1213                         $guid = $matches[1];
1214
1215                 return $guid;
1216         }
1217
1218         /**
1219          * @brief Cleans the body of a post if it contains picture links
1220          *
1221          * @param string $body The body
1222          *
1223          * @return string The cleaned body
1224          */
1225         private function format_picture_post($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         /**
1253          * @brief Adds the header elements to the XML document
1254          *
1255          * @param object $doc XML document
1256          * @param array $owner Contact data of the poster
1257          *
1258          * @return object header root element
1259          */
1260         private function add_header($doc, $owner) {
1261
1262                 $a = get_app();
1263
1264                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1265                 $doc->appendChild($root);
1266
1267                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1268                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1269                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1270                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1271                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1272                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1273                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1274
1275                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1276                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1277                 xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
1278                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1279                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1280                 xml::add_element($doc, $root, "logo", $owner["photo"]);
1281                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1282
1283                 $author = self::add_author($doc, $owner);
1284                 $root->appendChild($author);
1285
1286                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1287                 xml::add_element($doc, $root, "link", "", $attributes);
1288
1289                 /// @TODO We have to find out what this is
1290                 /// $attributes = array("href" => App::get_baseurl()."/sup",
1291                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1292                 ///             "type" => "application/json");
1293                 /// xml::add_element($doc, $root, "link", "", $attributes);
1294
1295                 self::hublinks($doc, $root);
1296
1297                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1298                 xml::add_element($doc, $root, "link", "", $attributes);
1299
1300                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1301                 xml::add_element($doc, $root, "link", "", $attributes);
1302
1303                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1304                 xml::add_element($doc, $root, "link", "", $attributes);
1305
1306                 $attributes = array("href" => App::get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1307                                 "rel" => "self", "type" => "application/atom+xml");
1308                 xml::add_element($doc, $root, "link", "", $attributes);
1309
1310                 return $root;
1311         }
1312
1313         /**
1314          * @brief Add the link to the push hubs to the XML document
1315          *
1316          * @param object $doc XML document
1317          * @param object $root XML root element where the hub links are added
1318          */
1319         public static function hublinks($doc, $root) {
1320                 $hub = get_config('system','huburl');
1321
1322                 $hubxml = '';
1323                 if(strlen($hub)) {
1324                         $hubs = explode(',', $hub);
1325                         if(count($hubs)) {
1326                                 foreach($hubs as $h) {
1327                                         $h = trim($h);
1328                                         if(! strlen($h))
1329                                                 continue;
1330                                         if ($h === '[internal]')
1331                                                 $h = App::get_baseurl() . '/pubsubhubbub';
1332                                         xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1333                                 }
1334                         }
1335                 }
1336         }
1337
1338         /**
1339          * @brief Adds attachement data to the XML document
1340          *
1341          * @param object $doc XML document
1342          * @param object $root XML root element where the hub links are added
1343          * @param array $item Data of the item that is to be posted
1344          */
1345         private function get_attachment($doc, $root, $item) {
1346                 $o = "";
1347                 $siteinfo = get_attached_data($item["body"]);
1348
1349                 switch($siteinfo["type"]) {
1350                         case 'link':
1351                                 $attributes = array("rel" => "enclosure",
1352                                                 "href" => $siteinfo["url"],
1353                                                 "type" => "text/html; charset=UTF-8",
1354                                                 "length" => "",
1355                                                 "title" => $siteinfo["title"]);
1356                                 xml::add_element($doc, $root, "link", "", $attributes);
1357                                 break;
1358                         case 'photo':
1359                                 $imgdata = get_photo_info($siteinfo["image"]);
1360                                 $attributes = array("rel" => "enclosure",
1361                                                 "href" => $siteinfo["image"],
1362                                                 "type" => $imgdata["mime"],
1363                                                 "length" => intval($imgdata["size"]));
1364                                 xml::add_element($doc, $root, "link", "", $attributes);
1365                                 break;
1366                         case 'video':
1367                                 $attributes = array("rel" => "enclosure",
1368                                                 "href" => $siteinfo["url"],
1369                                                 "type" => "text/html; charset=UTF-8",
1370                                                 "length" => "",
1371                                                 "title" => $siteinfo["title"]);
1372                                 xml::add_element($doc, $root, "link", "", $attributes);
1373                                 break;
1374                         default:
1375                                 break;
1376                 }
1377
1378                 if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1379                         $photodata = get_photo_info($siteinfo["image"]);
1380
1381                         $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1382                         xml::add_element($doc, $root, "link", "", $attributes);
1383                 }
1384
1385
1386                 $arr = explode('[/attach],',$item['attach']);
1387                 if(count($arr)) {
1388                         foreach($arr as $r) {
1389                                 $matches = false;
1390                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1391                                 if($cnt) {
1392                                         $attributes = array("rel" => "enclosure",
1393                                                         "href" => $matches[1],
1394                                                         "type" => $matches[3]);
1395
1396                                         if(intval($matches[2]))
1397                                                 $attributes["length"] = intval($matches[2]);
1398
1399                                         if(trim($matches[4]) != "")
1400                                                 $attributes["title"] = trim($matches[4]);
1401
1402                                         xml::add_element($doc, $root, "link", "", $attributes);
1403                                 }
1404                         }
1405                 }
1406         }
1407
1408         /**
1409          * @brief Adds the author element to the XML document
1410          *
1411          * @param object $doc XML document
1412          * @param array $owner Contact data of the poster
1413          *
1414          * @return object author element
1415          */
1416         private function add_author($doc, $owner) {
1417
1418                 $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1419                 if ($r)
1420                         $profile = $r[0];
1421
1422                 $author = $doc->createElement("author");
1423                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1424                 xml::add_element($doc, $author, "uri", $owner["url"]);
1425                 xml::add_element($doc, $author, "name", $owner["name"]);
1426                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
1427
1428                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1429                 xml::add_element($doc, $author, "link", "", $attributes);
1430
1431                 $attributes = array(
1432                                 "rel" => "avatar",
1433                                 "type" => "image/jpeg", // To-Do?
1434                                 "media:width" => 175,
1435                                 "media:height" => 175,
1436                                 "href" => $owner["photo"]);
1437                 xml::add_element($doc, $author, "link", "", $attributes);
1438
1439                 if (isset($owner["thumb"])) {
1440                         $attributes = array(
1441                                         "rel" => "avatar",
1442                                         "type" => "image/jpeg", // To-Do?
1443                                         "media:width" => 80,
1444                                         "media:height" => 80,
1445                                         "href" => $owner["thumb"]);
1446                         xml::add_element($doc, $author, "link", "", $attributes);
1447                 }
1448
1449                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1450                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1451                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1452
1453                 if (trim($owner["location"]) != "") {
1454                         $element = $doc->createElement("poco:address");
1455                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1456                         $author->appendChild($element);
1457                 }
1458
1459                 if (trim($profile["homepage"]) != "") {
1460                         $urls = $doc->createElement("poco:urls");
1461                         xml::add_element($doc, $urls, "poco:type", "homepage");
1462                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1463                         xml::add_element($doc, $urls, "poco:primary", "true");
1464                         $author->appendChild($urls);
1465                 }
1466
1467                 if (count($profile)) {
1468                         xml::add_element($doc, $author, "followers", "", array("url" => App::get_baseurl()."/viewcontacts/".$owner["nick"]));
1469                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1470                 }
1471
1472                 return $author;
1473         }
1474
1475         /**
1476          * @TODO Picture attachments should look like this:
1477          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1478          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1479          *
1480         */
1481
1482         /**
1483          * @brief Returns the given activity if present - otherwise returns the "post" activity
1484          *
1485          * @param array $item Data of the item that is to be posted
1486          *
1487          * @return string activity
1488          */
1489         function construct_verb($item) {
1490                 if ($item['verb'])
1491                         return $item['verb'];
1492                 return ACTIVITY_POST;
1493         }
1494
1495         /**
1496          * @brief Returns the given object type if present - otherwise returns the "note" object type
1497          *
1498          * @param array $item Data of the item that is to be posted
1499          *
1500          * @return string Object type
1501          */
1502         function construct_objecttype($item) {
1503                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1504                         return $item['object-type'];
1505                 return ACTIVITY_OBJ_NOTE;
1506         }
1507
1508         /**
1509          * @brief Adds an entry element to the XML document
1510          *
1511          * @param object $doc XML document
1512          * @param array $item Data of the item that is to be posted
1513          * @param array $owner Contact data of the poster
1514          * @param bool $toplevel
1515          *
1516          * @return object Entry element
1517          */
1518         private function entry($doc, $item, $owner, $toplevel = false) {
1519                 $repeated_guid = self::get_reshared_guid($item);
1520                 if ($repeated_guid != "")
1521                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1522
1523                 if ($xml)
1524                         return $xml;
1525
1526                 if ($item["verb"] == ACTIVITY_LIKE)
1527                         return self::like_entry($doc, $item, $owner, $toplevel);
1528                 else
1529                         return self::note_entry($doc, $item, $owner, $toplevel);
1530         }
1531
1532         /**
1533          * @brief Adds a source entry to the XML document
1534          *
1535          * @param object $doc XML document
1536          * @param array $contact Array of the contact that is added
1537          *
1538          * @return object Source element
1539          */
1540         private function source_entry($doc, $contact) {
1541                 $source = $doc->createElement("source");
1542                 xml::add_element($doc, $source, "id", $contact["poll"]);
1543                 xml::add_element($doc, $source, "title", $contact["name"]);
1544                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1545                                                                 "type" => "text/html",
1546                                                                 "href" => $contact["alias"]));
1547                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1548                                                                 "type" => "application/atom+xml",
1549                                                                 "href" => $contact["poll"]));
1550                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1551                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1552
1553                 return $source;
1554         }
1555
1556         /**
1557          * @brief Fetches contact data from the contact or the gcontact table
1558          *
1559          * @param string $url URL of the contact
1560          * @param array $owner Contact data of the poster
1561          *
1562          * @return array Contact array
1563          */
1564         private function contact_entry($url, $owner) {
1565
1566                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1567                         dbesc(normalise_link($url)), intval($owner["uid"]));
1568                 if ($r) {
1569                         $contact = $r[0];
1570                         $contact["uid"] = -1;
1571                 }
1572
1573                 if (!$r) {
1574                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1575                                 dbesc(normalise_link($url)));
1576                         if ($r) {
1577                                 $contact = $r[0];
1578                                 $contact["uid"] = -1;
1579                                 $contact["success_update"] = $contact["updated"];
1580                         }
1581                 }
1582
1583                 if (!$r)
1584                         $contact = owner;
1585
1586                 if (!isset($contact["poll"])) {
1587                         $data = probe_url($url);
1588                         $contact["alias"] = $data["alias"];
1589                         $contact["poll"] = $data["poll"];
1590                 }
1591
1592                 if (!isset($contact["alias"]))
1593                         $contact["alias"] = $contact["url"];
1594
1595                 return $contact;
1596         }
1597
1598         /**
1599          * @brief Adds an entry element with reshared content
1600          *
1601          * @param object $doc XML document
1602          * @param array $item Data of the item that is to be posted
1603          * @param array $owner Contact data of the poster
1604          * @param $repeated_guid
1605          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1606          *
1607          * @return object Entry element
1608          */
1609         private function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1610
1611                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1612                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1613                 }
1614
1615                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1616
1617                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1618                         intval($owner["uid"]), dbesc($repeated_guid),
1619                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1620                 if ($r)
1621                         $repeated_item = $r[0];
1622                 else
1623                         return false;
1624
1625                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1626
1627                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1628
1629                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1630
1631                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1632
1633                 $as_object = $doc->createElement("activity:object");
1634
1635                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1636
1637                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1638
1639                 $author = self::add_author($doc, $contact);
1640                 $as_object->appendChild($author);
1641
1642                 $as_object2 = $doc->createElement("activity:object");
1643
1644                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1645
1646                 $title = sprintf("New comment by %s", $contact["nick"]);
1647
1648                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1649
1650                 $as_object->appendChild($as_object2);
1651
1652                 self::entry_footer($doc, $as_object, $item, $owner, false);
1653
1654                 $source = self::source_entry($doc, $contact);
1655
1656                 $as_object->appendChild($source);
1657
1658                 $entry->appendChild($as_object);
1659
1660                 self::entry_footer($doc, $entry, $item, $owner);
1661
1662                 return $entry;
1663         }
1664
1665         /**
1666          * @brief Adds an entry element with a "like"
1667          *
1668          * @param object $doc XML document
1669          * @param array $item Data of the item that is to be posted
1670          * @param array $owner Contact data of the poster
1671          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1672          *
1673          * @return object Entry element with "like"
1674          */
1675         private function like_entry($doc, $item, $owner, $toplevel) {
1676
1677                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1678                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1679                 }
1680
1681                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1682
1683                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1684                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1685
1686                 $as_object = $doc->createElement("activity:object");
1687
1688                 $parent = q("SELECT * FROM `item` WHERE `id` = %d", intval($item["parent"]));
1689                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1690
1691                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1692
1693                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1694
1695                 $entry->appendChild($as_object);
1696
1697                 self::entry_footer($doc, $entry, $item, $owner);
1698
1699                 return $entry;
1700         }
1701
1702         /**
1703          * @brief Adds a regular entry element
1704          *
1705          * @param object $doc XML document
1706          * @param array $item Data of the item that is to be posted
1707          * @param array $owner Contact data of the poster
1708          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1709          *
1710          * @return object Entry element
1711          */
1712         private function note_entry($doc, $item, $owner, $toplevel) {
1713
1714                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1715                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1716                 }
1717
1718                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1719
1720                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1721
1722                 self::entry_content($doc, $entry, $item, $owner, $title);
1723
1724                 self::entry_footer($doc, $entry, $item, $owner);
1725
1726                 return $entry;
1727         }
1728
1729         /**
1730          * @brief Adds a header element to the XML document
1731          *
1732          * @param object $doc XML document
1733          * @param object $entry The entry element where the elements are added
1734          * @param array $owner Contact data of the poster
1735          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1736          *
1737          * @return string The title for the element
1738          */
1739         private function entry_header($doc, &$entry, $owner, $toplevel) {
1740                 /// @todo Check if this title stuff is really needed (I guess not)
1741                 if (!$toplevel) {
1742                         $entry = $doc->createElement("entry");
1743                         $title = sprintf("New note by %s", $owner["nick"]);
1744                 } else {
1745                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1746
1747                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1748                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1749                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1750                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1751                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1752                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1753                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1754
1755                         $author = self::add_author($doc, $owner);
1756                         $entry->appendChild($author);
1757
1758                         $title = sprintf("New comment by %s", $owner["nick"]);
1759                 }
1760                 return $title;
1761         }
1762
1763         /**
1764          * @brief Adds elements to the XML document
1765          *
1766          * @param object $doc XML document
1767          * @param object $entry Entry element where the content is added
1768          * @param array $item Data of the item that is to be posted
1769          * @param array $owner Contact data of the poster
1770          * @param string $title Title for the post
1771          * @param string $verb The activity verb
1772          * @param bool $complete Add the "status_net" element?
1773          */
1774         private function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
1775
1776                 if ($verb == "")
1777                         $verb = self::construct_verb($item);
1778
1779                 xml::add_element($doc, $entry, "id", $item["uri"]);
1780                 xml::add_element($doc, $entry, "title", $title);
1781
1782                 $body = self::format_picture_post($item['body']);
1783
1784                 if ($item['title'] != "")
1785                         $body = "[b]".$item['title']."[/b]\n\n".$body;
1786
1787                 $body = bbcode($body, false, false, 7);
1788
1789                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
1790
1791                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1792                                                                 "href" => App::get_baseurl()."/display/".$item["guid"]));
1793
1794                 if ($complete)
1795                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1796
1797                 xml::add_element($doc, $entry, "activity:verb", $verb);
1798
1799                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1800                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1801         }
1802
1803         /**
1804          * @brief Adds the elements at the foot of an entry to the XML document
1805          *
1806          * @param object $doc XML document
1807          * @param object $entry The entry element where the elements are added
1808          * @param array $item Data of the item that is to be posted
1809          * @param array $owner Contact data of the poster
1810          * @param $complete
1811          */
1812         private function entry_footer($doc, $entry, $item, $owner, $complete = true) {
1813
1814                 $mentioned = array();
1815
1816                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1817                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1818                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1819
1820                         $attributes = array(
1821                                         "ref" => $parent_item,
1822                                         "type" => "text/html",
1823                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1824                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1825
1826                         $attributes = array(
1827                                         "rel" => "related",
1828                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1829                         xml::add_element($doc, $entry, "link", "", $attributes);
1830
1831                         $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1832                         $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1833
1834                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
1835                                         intval($owner["uid"]),
1836                                         dbesc($parent_item));
1837                         if ($thrparent) {
1838                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
1839                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
1840                         }
1841                 }
1842
1843                 xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation",
1844                                                         "href" => App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]));
1845                 xml::add_element($doc, $entry, "ostatus:conversation", App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]);
1846
1847                 $tags = item_getfeedtags($item);
1848
1849                 if(count($tags))
1850                         foreach($tags as $t)
1851                                 if ($t[0] == "@")
1852                                         $mentioned[$t[1]] = $t[1];
1853
1854                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1855                 $newmentions = array();
1856                 foreach ($mentioned AS $mention) {
1857                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
1858                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
1859                 }
1860                 $mentioned = $newmentions;
1861
1862                 foreach ($mentioned AS $mention) {
1863                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1864                                 intval($owner["uid"]),
1865                                 dbesc(normalise_link($mention)));
1866                         if ($r[0]["forum"] OR $r[0]["prv"])
1867                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1868                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
1869                                                                                         "href" => $mention));
1870                         else
1871                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1872                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
1873                                                                                         "href" => $mention));
1874                 }
1875
1876                 if (!$item["private"]) {
1877                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
1878                                                                         "href" => "http://activityschema.org/collection/public"));
1879                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1880                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
1881                                                                         "href" => "http://activityschema.org/collection/public"));
1882                 }
1883
1884                 if(count($tags))
1885                         foreach($tags as $t)
1886                                 if ($t[0] != "@")
1887                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
1888
1889                 self::get_attachment($doc, $entry, $item);
1890
1891                 if ($complete) {
1892                         $app = $item["app"];
1893                         if ($app == "")
1894                                 $app = "web";
1895
1896                         $attributes = array("local_id" => $item["id"], "source" => $app);
1897
1898                         if (isset($parent["id"]))
1899                                 $attributes["repeat_of"] = $parent["id"];
1900
1901                         if ($item["coord"] != "")
1902                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
1903
1904                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
1905                 }
1906         }
1907
1908         /**
1909          * @brief Creates the XML feed for a given nickname
1910          *
1911          * @param app $a The application class
1912          * @param string $owner_nick Nickname of the feed owner
1913          * @param string $last_update Date of the last update
1914          *
1915          * @return string XML feed
1916          */
1917         public static function feed(&$a, $owner_nick, $last_update) {
1918
1919                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
1920                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
1921                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
1922                                 dbesc($owner_nick));
1923                 if (!$r)
1924                         return;
1925
1926                 $owner = $r[0];
1927
1928                 if(!strlen($last_update))
1929                         $last_update = 'now -30 days';
1930
1931                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
1932
1933                 $items = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id` FROM `item`
1934                                 INNER JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1935                                 LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
1936                                 WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
1937                                         AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1938                                         AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
1939                                                 OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
1940                                         AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
1941                                                 OR (`item`.`author-link` IN ('%s', '%s')))
1942                                 ORDER BY `item`.`received` DESC
1943                                 LIMIT 0, 300",
1944                                 intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
1945                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1946                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1947                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1948                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1949                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
1950                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
1951                         );
1952
1953                 $doc = new DOMDocument('1.0', 'utf-8');
1954                 $doc->formatOutput = true;
1955
1956                 $root = self::add_header($doc, $owner);
1957
1958                 foreach ($items AS $item) {
1959                         $entry = self::entry($doc, $item, $owner);
1960                         $root->appendChild($entry);
1961                 }
1962
1963                 return(trim($doc->saveXML()));
1964         }
1965
1966         /**
1967          * @brief Creates the XML for a salmon message
1968          *
1969          * @param array $item Data of the item that is to be posted
1970          * @param array $owner Contact data of the poster
1971          *
1972          * @return string XML for the salmon
1973          */
1974         public static function salmon($item,$owner) {
1975
1976                 $doc = new DOMDocument('1.0', 'utf-8');
1977                 $doc->formatOutput = true;
1978
1979                 $entry = self::entry($doc, $item, $owner, true);
1980
1981                 $doc->appendChild($entry);
1982
1983                 return(trim($doc->saveXML()));
1984         }
1985 }
1986 ?>