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                 $aliaslink = $author["author-link"];
  48
  49                 $alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
  50                 if (is_object($alternate))
  51                         foreach($alternate AS $attributes)
  52                                 if ($attributes->name == "href")
  53                                         $author["author-link"] = $attributes->textContent;
  54
  55                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` IN ('%s', '%s') AND `network` != '%s'",
  56                         intval($importer["uid"]), dbesc(normalise_link($author["author-link"])),
  57                         dbesc(normalise_link($aliaslink)), dbesc(NETWORK_STATUSNET));
  58                 if ($r) {
  59                         $contact = $r[0];
  60                         $author["contact-id"] = $r[0]["id"];
  61                 } else
  62                         $author["contact-id"] = $contact["id"];
  63
  64                 $avatarlist = array();
  65                 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
  66                 foreach($avatars AS $avatar) {
  67                         $href = "";
  68                         $width = 0;
  69                         foreach($avatar->attributes AS $attributes) {
  70                                 if ($attributes->name == "href")
  71                                         $href = $attributes->textContent;
  72                                 if ($attributes->name == "width")
  73                                         $width = $attributes->textContent;
  74                         }
  75                         if (($width > 0) AND ($href != ""))
  76                                 $avatarlist[$width] = $href;
  77                 }
  78                 if (count($avatarlist) > 0) {
  79                         krsort($avatarlist);
  80                         $author["author-avatar"] = current($avatarlist);
  81                 }
  82
  83                 $displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
  84                 if ($displayname != "")
  85                         $author["author-name"] = $displayname;
  86
  87                 $author["owner-name"] = $author["author-name"];
  88                 $author["owner-link"] = $author["author-link"];
  89                 $author["owner-avatar"] = $author["author-avatar"];
  90
  91                 // Only update the contacts if it is an OStatus contact
  92                 if ($r AND !$onlyfetch AND ($contact["network"] == NETWORK_OSTATUS)) {
  93
  94                         // Update contact data
  95
  96                         // This query doesn't seem to work
  97                         // $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
  98                         // if ($value != "")
  99                         //      $contact["notify"] = $value;
 100
 101                         // This query doesn't seem to work as well - I hate these queries
 102                         // $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
 103                         // if ($value != "")
 104                         //      $contact["poll"] = $value;
 105
 106                         $value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
 107                         if ($value != "")
 108                                 $contact["alias"] = $value;
 109
 110                         $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 111                         if ($value != "")
 112                                 $contact["name"] = $value;
 113
 114                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 115                         if ($value != "")
 116                                 $contact["nick"] = $value;
 117
 118                         $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
 119                         if ($value != "")
 120                                 $contact["about"] = html2bbcode($value);
 121
 122                         $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
 123                         if ($value != "")
 124                                 $contact["location"] = $value;
 125
 126                         if (($contact["name"] != $r[0]["name"]) OR ($contact["nick"] != $r[0]["nick"]) OR ($contact["about"] != $r[0]["about"]) OR
 127                                 ($contact["alias"] != $r[0]["alias"]) OR ($contact["location"] != $r[0]["location"])) {
 128
 129                                 logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 130
 131                                 q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `alias` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
 132                                         dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["alias"]),
 133                                         dbesc($contact["about"]), dbesc($contact["location"]),
 134                                         dbesc(datetime_convert()), intval($contact["id"]));
 135
 136                                 poco_check($contact["url"], $contact["name"], $contact["network"], $author["author-avatar"], $contact["about"], $contact["location"],
 137                                                         "", "", "", datetime_convert(), 2, $contact["id"], $contact["uid"]);
 138                         }
 139
 140                         if (isset($author["author-avatar"]) AND ($author["author-avatar"] != $r[0]['avatar'])) {
 141                                 logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
 142
 143                                 update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
 144                         }
 145
 146                         // Ensure that we are having this contact (with uid=0)
 147                         $cid = get_contact($author["author-link"], 0);
 148
 149                         if ($cid) {
 150                                 // Update it with the current values
 151                                 q("UPDATE `contact` SET `url` = '%s', `name` = '%s', `nick` = '%s', `alias` = '%s',
 152                                                 `about` = '%s', `location` = '%s',
 153                                                 `success_update` = '%s', `last-update` = '%s'
 154                                         WHERE `id` = %d",
 155                                         dbesc($author["author-link"]), dbesc($contact["name"]), dbesc($contact["nick"]),
 156                                         dbesc($contact["alias"]), dbesc($contact["about"]), dbesc($contact["location"]),
 157                                         dbesc(datetime_convert()), dbesc(datetime_convert()), intval($cid));
 158
 159                                 // Update the avatar
 160                                 update_contact_avatar($author["author-avatar"], 0, $cid);
 161                         }
 162
 163                         $contact["generation"] = 2;
 164                         $contact["photo"] = $author["author-avatar"];
 165                         update_gcontact($contact);
 166                 }
 167
 168                 return($author);
 169         }
 170
 171         /**
 172          * @brief Fetches author data from a given XML string
 173          *
 174          * @param string $xml The XML
 175          * @param array $importer user record of the importing user
 176          *
 177          * @return array Array of author related entries for the item
 178          */
 179         public static function salmon_author($xml, $importer) {
 180
 181                 if ($xml == "")
 182                         return;
 183
 184                 $doc = new DOMDocument();
 185                 @$doc->loadXML($xml);
 186
 187                 $xpath = new DomXPath($doc);
 188                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 189                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 190                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 191                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 192                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 193                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 194                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 195                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 196
 197                 $entries = $xpath->query('/atom:entry');
 198
 199                 foreach ($entries AS $entry) {
 200                         // fetch the author
 201                         $author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
 202                         return $author;
 203                 }
 204         }
 205
 206         /**
 207          * @brief Imports an XML string containing OStatus elements
 208          *
 209          * @param string $xml The XML
 210          * @param array $importer user record of the importing user
 211          * @param $contact
 212          * @param array $hub Called by reference, returns the fetched hub data
 213          */
 214         public static function import($xml,$importer,&$contact, &$hub) {
 215                 /// @todo this function is too long. It has to be split in many parts
 216
 217                 logger("Import OStatus message", LOGGER_DEBUG);
 218
 219                 if ($xml == "")
 220                         return;
 221
 222                 //$tempfile = tempnam(get_temppath(), "import");
 223                 //file_put_contents($tempfile, $xml);
 224
 225                 $doc = new DOMDocument();
 226                 @$doc->loadXML($xml);
 227
 228                 $xpath = new DomXPath($doc);
 229                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 230                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 231                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 232                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 233                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 234                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 235                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 236                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 237
 238                 $gub = "";
 239                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
 240                 if (is_object($hub_attributes))
 241                         foreach($hub_attributes AS $hub_attribute)
 242                                 if ($hub_attribute->name == "href") {
 243                                         $hub = $hub_attribute->textContent;
 244                                         logger("Found hub ".$hub, LOGGER_DEBUG);
 245                                 }
 246
 247                 $header = array();
 248                 $header["uid"] = $importer["uid"];
 249                 $header["network"] = NETWORK_OSTATUS;
 250                 $header["type"] = "remote";
 251                 $header["wall"] = 0;
 252                 $header["origin"] = 0;
 253                 $header["gravity"] = GRAVITY_PARENT;
 254
 255                 // it could either be a received post or a post we fetched by ourselves
 256                 // depending on that, the first node is different
 257                 $first_child = $doc->firstChild->tagName;
 258
 259                 if ($first_child == "feed")
 260                         $entries = $xpath->query('/atom:feed/atom:entry');
 261                 else
 262                         $entries = $xpath->query('/atom:entry');
 263
 264                 $conversation = "";
 265                 $conversationlist = array();
 266                 $item_id = 0;
 267
 268                 // Reverse the order of the entries
 269                 $entrylist = array();
 270
 271                 foreach ($entries AS $entry)
 272                         $entrylist[] = $entry;
 273
 274                 foreach (array_reverse($entrylist) AS $entry) {
 275
 276                         $mention = false;
 277
 278                         // fetch the author
 279                         if ($first_child == "feed")
 280                                 $author = self::fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
 281                         else
 282                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, false);
 283
 284                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 285                         if ($value != "")
 286                                 $nickname = $value;
 287                         else
 288                                 $nickname = $author["author-name"];
 289
 290                         $item = array_merge($header, $author);
 291
 292                         // Now get the item
 293                         $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 294
 295                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 296                                 intval($importer["uid"]), dbesc($item["uri"]));
 297                         if ($r) {
 298                                 logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
 299                                 continue;
 300                         }
 301
 302                         $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
 303                         $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 304
 305                         if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 306                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 307                                 $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 308                         } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION)
 309                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 310
 311                         $item["object"] = $xml;
 312                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 313
 314                         /// @TODO
 315                         /// Delete a message
 316                         if ($item["verb"] == "qvitter-delete-notice") {
 317                                 // ignore "Delete" messages (by now)
 318                                 logger("Ignore delete message ".print_r($item, true));
 319                                 continue;
 320                         }
 321
 322                         if ($item["verb"] == ACTIVITY_JOIN) {
 323                                 // ignore "Join" messages
 324                                 logger("Ignore join message ".print_r($item, true));
 325                                 continue;
 326                         }
 327
 328                         if ($item["verb"] == ACTIVITY_FOLLOW) {
 329                                 new_follower($importer, $contact, $item, $nickname);
 330                                 continue;
 331                         }
 332
 333                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 334                                 lose_follower($importer, $contact, $item, $dummy);
 335                                 continue;
 336                         }
 337
 338                         if ($item["verb"] == ACTIVITY_FAVORITE) {
 339                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 340                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
 341
 342                                 $item["verb"] = ACTIVITY_LIKE;
 343                                 $item["parent-uri"] = $orig_uri;
 344                                 $item["gravity"] = GRAVITY_LIKE;
 345                         }
 346
 347                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 348                                 // Ignore "Unfavorite" message
 349                                 logger("Ignore unfavorite message ".print_r($item, true));
 350                                 continue;
 351                         }
 352
 353                         // http://activitystrea.ms/schema/1.0/rsvp-yes
 354                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE)))
 355                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 356
 357                         $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 358                         $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 359                         $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 360
 361                         $related = "";
 362
 363                         $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 364                         if (is_object($inreplyto->item(0))) {
 365                                 foreach($inreplyto->item(0)->attributes AS $attributes) {
 366                                         if ($attributes->name == "ref")
 367                                                 $item["parent-uri"] = $attributes->textContent;
 368                                         if ($attributes->name == "href")
 369                                                 $related = $attributes->textContent;
 370                                 }
 371                         }
 372
 373                         $georsspoint = $xpath->query('georss:point', $entry);
 374                         if ($georsspoint)
 375                                 $item["coord"] = $georsspoint->item(0)->nodeValue;
 376
 377                         $categories = $xpath->query('atom:category', $entry);
 378                         if ($categories) {
 379                                 foreach ($categories AS $category) {
 380                                         foreach($category->attributes AS $attributes)
 381                                                 if ($attributes->name == "term") {
 382                                                         $term = $attributes->textContent;
 383                                                         if(strlen($item["tag"]))
 384                                                                 $item["tag"] .= ',';
 385                                                         $item["tag"] .= "#[url=".App::get_baseurl()."/search?tag=".$term."]".$term."[/url]";
 386                                                 }
 387                                 }
 388                         }
 389
 390                         $self = "";
 391                         $enclosure = "";
 392
 393                         $links = $xpath->query('atom:link', $entry);
 394                         if ($links) {
 395                                 $rel = "";
 396                                 $href = "";
 397                                 $type = "";
 398                                 $length = "0";
 399                                 $title = "";
 400                                 foreach ($links AS $link) {
 401                                         foreach($link->attributes AS $attributes) {
 402                                                 if ($attributes->name == "href")
 403                                                         $href = $attributes->textContent;
 404                                                 if ($attributes->name == "rel")
 405                                                         $rel = $attributes->textContent;
 406                                                 if ($attributes->name == "type")
 407                                                         $type = $attributes->textContent;
 408                                                 if ($attributes->name == "length")
 409                                                         $length = $attributes->textContent;
 410                                                 if ($attributes->name == "title")
 411                                                         $title = $attributes->textContent;
 412                                         }
 413                                         if (($rel != "") AND ($href != ""))
 414                                                 switch($rel) {
 415                                                         case "alternate":
 416                                                                 $item["plink"] = $href;
 417                                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
 418                                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT))
 419                                                                         $item["body"] .= add_page_info($href);
 420                                                                 break;
 421                                                         case "ostatus:conversation":
 422                                                                 $conversation = $href;
 423                                                                 break;
 424                                                         case "enclosure":
 425                                                                 $enclosure = $href;
 426                                                                 if(strlen($item["attach"]))
 427                                                                         $item["attach"] .= ',';
 428
 429                                                                 $item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'" title="'.$title.'"[/attach]';
 430                                                                 break;
 431                                                         case "related":
 432                                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 433                                                                         if (!isset($item["parent-uri"]))
 434                                                                                 $item["parent-uri"] = $href;
 435
 436                                                                         if ($related == "")
 437                                                                                 $related = $href;
 438                                                                 } else
 439                                                                         $item["body"] .= add_page_info($href);
 440                                                                 break;
 441                                                         case "self":
 442                                                                 $self = $href;
 443                                                                 break;
 444                                                         case "mentioned":
 445                                                                 // Notification check
 446                                                                 if ($importer["nurl"] == normalise_link($href))
 447                                                                         $mention = true;
 448                                                                 break;
 449                                                 }
 450                                 }
 451                         }
 452
 453                         $local_id = "";
 454                         $repeat_of = "";
 455
 456                         $notice_info = $xpath->query('statusnet:notice_info', $entry);
 457                         if ($notice_info AND ($notice_info->length > 0)) {
 458                                 foreach($notice_info->item(0)->attributes AS $attributes) {
 459                                         if ($attributes->name == "source")
 460                                                 $item["app"] = strip_tags($attributes->textContent);
 461                                         if ($attributes->name == "local_id")
 462                                                 $local_id = $attributes->textContent;
 463                                         if ($attributes->name == "repeat_of")
 464                                                 $repeat_of = $attributes->textContent;
 465                                 }
 466                         }
 467
 468                         // Is it a repeated post?
 469                         if ($repeat_of != "") {
 470                                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 471
 472                                 if (is_object($activityobjects)) {
 473
 474                                         $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
 475                                         if (!isset($orig_uri))
 476                                                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 477
 478                                         $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
 479                                         if ($orig_links AND ($orig_links->length > 0))
 480                                                 foreach($orig_links->item(0)->attributes AS $attributes)
 481                                                         if ($attributes->name == "href")
 482                                                                 $orig_link = $attributes->textContent;
 483
 484                                         if (!isset($orig_link))
 485                                                 $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
 486
 487                                         if (!isset($orig_link))
 488                                                 $orig_link =  self::convert_href($orig_uri);
 489
 490                                         $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
 491                                         if (!isset($orig_body))
 492                                                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 493
 494                                         $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 495
 496                                         $orig_contact = $contact;
 497                                         $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 498
 499                                         $item["author-name"] = $orig_author["author-name"];
 500                                         $item["author-link"] = $orig_author["author-link"];
 501                                         $item["author-avatar"] = $orig_author["author-avatar"];
 502                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
 503                                         $item["created"] = $orig_created;
 504
 505                                         $item["uri"] = $orig_uri;
 506                                         $item["plink"] = $orig_link;
 507
 508                                         $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 509
 510                                         $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 511                                         if (!isset($item["object-type"]))
 512                                                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 513                                 }
 514                         }
 515
 516                         //if ($enclosure != "")
 517                         //      $item["body"] .= add_page_info($enclosure);
 518
 519                         if (isset($item["parent-uri"])) {
 520                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 521                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 522
 523                                 if (!$r AND ($related != "")) {
 524                                         $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
 525
 526                                         if ($reply_path != $related) {
 527                                                 logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
 528                                                 $reply_xml = fetch_url($reply_path);
 529
 530                                                 $reply_contact = $contact;
 531                                                 self::import($reply_xml,$importer,$reply_contact, $reply_hub);
 532
 533                                                 // After the import try to fetch the parent item again
 534                                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 535                                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 536                                         }
 537                                 }
 538                                 if ($r) {
 539                                         $item["type"] = 'remote-comment';
 540                                         $item["gravity"] = GRAVITY_COMMENT;
 541                                 }
 542                         } else
 543                                 $item["parent-uri"] = $item["uri"];
 544
 545                         $item_id = self::completion($conversation, $importer["uid"], $item, $self);
 546
 547                         if (!$item_id) {
 548                                 logger("Error storing item", LOGGER_DEBUG);
 549                                 continue;
 550                         }
 551
 552                         logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
 553                 }
 554         }
 555
 556         /**
 557          * @brief Create an url out of an uri
 558          *
 559          * @param string $href URI in the format "parameter1:parameter1:..."
 560          *
 561          * @return string URL in the format http(s)://....
 562          */
 563         public static function convert_href($href) {
 564                 $elements = explode(":",$href);
 565
 566                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 567                         return $href;
 568
 569                 $server = explode(",", $elements[1]);
 570                 $conversation = explode("=", $elements[2]);
 571
 572                 if ((count($elements) == 4) AND ($elements[2] == "post"))
 573                         return "http://".$server[0]."/notice/".$elements[3];
 574
 575                 if ((count($conversation) != 2) OR ($conversation[1] ==""))
 576                         return $href;
 577
 578                 if ($elements[3] == "objectType=thread")
 579                         return "http://".$server[0]."/conversation/".$conversation[1];
 580                 else
 581                         return "http://".$server[0]."/notice/".$conversation[1];
 582
 583                 return $href;
 584         }
 585
 586         /**
 587          * @brief Checks if there are entries in conversations that aren't present on our side
 588          *
 589          * @param bool $mentions Fetch conversations where we are mentioned
 590          * @param bool $override Override the interval setting
 591          */
 592         public static function check_conversations($mentions = false, $override = false) {
 593                 $last = get_config('system','ostatus_last_poll');
 594
 595                 $poll_interval = intval(get_config('system','ostatus_poll_interval'));
 596                 if(! $poll_interval)
 597                         $poll_interval = OSTATUS_DEFAULT_POLL_INTERVAL;
 598
 599                 // Don't poll if the interval is set negative
 600                 if (($poll_interval < 0) AND !$override)
 601                         return;
 602
 603                 if (!$mentions) {
 604                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 605                         if (!$poll_timeframe)
 606                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME;
 607                 } else {
 608                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 609                         if (!$poll_timeframe)
 610                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
 611                 }
 612
 613
 614                 if ($last AND !$override) {
 615                         $next = $last + ($poll_interval * 60);
 616                         if ($next > time()) {
 617                                 logger('poll interval not reached');
 618                                 return;
 619                         }
 620                 }
 621
 622                 logger('cron_start');
 623
 624                 $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
 625
 626                 if ($mentions)
 627                         $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 628                                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 629                                                 WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
 630                                                 GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
 631                 else
 632                         $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 633                                                 WHERE `type` = 7 AND `term` > '%s'
 634                                                 GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
 635
 636                 foreach ($conversations AS $conversation) {
 637                         self::completion($conversation['url'], $conversation['uid']);
 638                 }
 639
 640                 logger('cron_end');
 641
 642                 set_config('system','ostatus_last_poll', time());
 643         }
 644
 645         /**
 646          * @brief Updates the gcontact table with actor data from the conversation
 647          *
 648          * @param object $actor The actor object that contains the contact data
 649          */
 650         private function conv_fetch_actor($actor) {
 651
 652                 // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
 653                 $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
 654
 655                 if (isset($actor->url))
 656                         $contact["url"] = $actor->url;
 657
 658                 if (isset($actor->displayName))
 659                         $contact["name"] = $actor->displayName;
 660
 661                 if (isset($actor->portablecontacts_net->displayName))
 662                         $contact["name"] = $actor->portablecontacts_net->displayName;
 663
 664                 if (isset($actor->portablecontacts_net->preferredUsername))
 665                         $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
 666
 667                 if (isset($actor->id))
 668                         $contact["alias"] = $actor->id;
 669
 670                 if (isset($actor->summary))
 671                         $contact["about"] = $actor->summary;
 672
 673                 if (isset($actor->portablecontacts_net->note))
 674                         $contact["about"] = $actor->portablecontacts_net->note;
 675
 676                 if (isset($actor->portablecontacts_net->addresses->formatted))
 677                         $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
 678
 679
 680                 if (isset($actor->image->url))
 681                         $contact["photo"] = $actor->image->url;
 682
 683                 if (isset($actor->image->width))
 684                         $avatarwidth = $actor->image->width;
 685
 686                 if (is_array($actor->status_net->avatarLinks))
 687                         foreach ($actor->status_net->avatarLinks AS $avatar) {
 688                                 if ($avatarsize < $avatar->width) {
 689                                         $contact["photo"] = $avatar->url;
 690                                         $avatarsize = $avatar->width;
 691                                 }
 692                         }
 693
 694                 update_gcontact($contact);
 695         }
 696
 697         /**
 698          * @brief Fetches the conversation url for a given item link or conversation id
 699          *
 700          * @param string $self The link to the posting
 701          * @param string $conversation_id The conversation id
 702          *
 703          * @return string The conversation url
 704          */
 705         private function fetch_conversation($self, $conversation_id = "") {
 706
 707                 if ($conversation_id != "") {
 708                         $elements = explode(":", $conversation_id);
 709
 710                         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 711                                 return $conversation_id;
 712                 }
 713
 714                 if ($self == "")
 715                         return "";
 716
 717                 $json = str_replace(".atom", ".json", $self);
 718
 719                 $raw = fetch_url($json);
 720                 if ($raw == "")
 721                         return "";
 722
 723                 $data = json_decode($raw);
 724                 if (!is_object($data))
 725                         return "";
 726
 727                 $conversation_id = $data->statusnet_conversation_id;
 728
 729                 $pos = strpos($self, "/api/statuses/show/");
 730                 $base_url = substr($self, 0, $pos);
 731
 732                 return $base_url."/conversation/".$conversation_id;
 733         }
 734
 735         /**
 736          * @brief Fetches actor details of a given actor and user id
 737          *
 738          * @param string $actor The actor url
 739          * @param int $uid The user id
 740          * @param int $contact_id The default contact-id
 741          *
 742          * @return array Array with actor details
 743          */
 744         private function get_actor_details($actor, $uid, $contact_id) {
 745
 746                 $details = array();
 747
 748                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
 749                                         $uid, normalise_link($actor), NETWORK_STATUSNET);
 750
 751                 if (!$contact)
 752                         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
 753                                         $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
 754
 755                 if ($contact) {
 756                         logger("Found contact for url ".$actor, LOGGER_DEBUG);
 757                         $details["contact_id"] = $contact[0]["id"];
 758                         $details["network"] = $contact[0]["network"];
 759
 760                         $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
 761                 } else {
 762                         logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
 763
 764                         // Adding a global contact
 765                         /// @TODO Use this data for the post
 766                         $details["global_contact_id"] = get_contact($actor, 0);
 767
 768                         logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
 769
 770                         $details["contact_id"] = $contact_id;
 771                         $details["network"] = NETWORK_OSTATUS;
 772
 773                         $details["not_following"] = true;
 774                 }
 775
 776                 return $details;
 777         }
 778
 779         /**
 780          * @brief Stores an item and completes the thread
 781          *
 782          * @param string $conversation_url The URI of the conversation
 783          * @param integer $uid The user id
 784          * @param array $item Data of the item that is to be posted
 785          *
 786          * @return integer The item id of the posted item array
 787          */
 788         private function completion($conversation_url, $uid, $item = array(), $self = "") {
 789
 790                 /// @todo This function is totally ugly and has to be rewritten totally
 791
 792                 $item_stored = -1;
 793
 794                 $conversation_url = self::fetch_conversation($self, $conversation_url);
 795
 796                 // If the thread shouldn't be completed then store the item and go away
 797                 // Don't do a completion on liked content
 798                 if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
 799                         ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
 800                         $item_stored = item_store($item, true);
 801                         return($item_stored);
 802                 }
 803
 804                 // Get the parent
 805                 $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 806                                 (SELECT `parent` FROM `item` WHERE `id` IN
 807                                         (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
 808                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 809
 810                 if ($parents)
 811                         $parent = $parents[0];
 812                 elseif (count($item) > 0) {
 813                         $parent = $item;
 814                         $parent["type"] = "remote";
 815                         $parent["verb"] = ACTIVITY_POST;
 816                         $parent["visible"] = 1;
 817                 } else {
 818                         // Preset the parent
 819                         $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
 820                         if (!$r)
 821                                 return(-2);
 822
 823                         $parent = array();
 824                         $parent["id"] = 0;
 825                         $parent["parent"] = 0;
 826                         $parent["uri"] = "";
 827                         $parent["contact-id"] = $r[0]["id"];
 828                         $parent["type"] = "remote";
 829                         $parent["verb"] = ACTIVITY_POST;
 830                         $parent["visible"] = 1;
 831                 }
 832
 833                 $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
 834                 $pageno = 1;
 835                 $items = array();
 836
 837                 logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
 838
 839                 do {
 840                         $conv_arr = z_fetch_url($conv."?page=".$pageno);
 841
 842                         // If it is a non-ssl site and there is an error, then try ssl or vice versa
 843                         if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
 844                                 $conv = str_replace("http://", "https://", $conv);
 845                                 $conv_as = fetch_url($conv."?page=".$pageno);
 846                         } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
 847                                 $conv = str_replace("https://", "http://", $conv);
 848                                 $conv_as = fetch_url($conv."?page=".$pageno);
 849                         } else
 850                                 $conv_as = $conv_arr["body"];
 851
 852                         $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
 853                         $conv_as = json_decode($conv_as);
 854
 855                         $no_of_items = sizeof($items);
 856
 857                         if (@is_array($conv_as->items))
 858                                 foreach ($conv_as->items AS $single_item)
 859                                         $items[$single_item->id] = $single_item;
 860
 861                         if ($no_of_items == sizeof($items))
 862                                 break;
 863
 864                         $pageno++;
 865
 866                 } while (true);
 867
 868                 logger('fetching conversation done. Found '.count($items).' items');
 869
 870                 if (!sizeof($items)) {
 871                         if (count($item) > 0) {
 872                                 $item_stored = item_store($item, true);
 873
 874                                 if ($item_stored) {
 875                                         logger("Conversation ".$conversation_url." couldn't be fetched. Item uri ".$item["uri"]." stored: ".$item_stored, LOGGER_DEBUG);
 876                                         self::store_conversation($item_id, $conversation_url);
 877                                 }
 878
 879                                 return($item_stored);
 880                         } else
 881                                 return(-3);
 882                 }
 883
 884                 $items = array_reverse($items);
 885
 886                 $r = q("SELECT `nurl` FROM `contact` WHERE `uid` = %d AND `self`", intval($uid));
 887                 $importer = $r[0];
 888
 889                 $new_parent = true;
 890
 891                 foreach ($items as $single_conv) {
 892
 893                         // Update the gcontact table
 894                         self::conv_fetch_actor($single_conv->actor);
 895
 896                         // Test - remove before flight
 897                         //$tempfile = tempnam(get_temppath(), "conversation");
 898                         //file_put_contents($tempfile, json_encode($single_conv));
 899
 900                         $mention = false;
 901
 902                         if (isset($single_conv->object->id))
 903                                 $single_conv->id = $single_conv->object->id;
 904
 905                         $plink = self::convert_href($single_conv->id);
 906                         if (isset($single_conv->object->url))
 907                                 $plink = self::convert_href($single_conv->object->url);
 908
 909                         if (@!$single_conv->id)
 910                                 continue;
 911
 912                         logger("Got id ".$single_conv->id, LOGGER_DEBUG);
 913
 914                         if ($first_id == "") {
 915                                 $first_id = $single_conv->id;
 916
 917                                 // The first post of the conversation isn't our first post. There are three options:
 918                                 // 1. Our conversation hasn't the "real" thread starter
 919                                 // 2. This first post is a post inside our thread
 920                                 // 3. This first post is a post inside another thread
 921                                 if (($first_id != $parent["uri"]) AND ($parent["uri"] != "")) {
 922
 923                                         $new_parent = true;
 924
 925                                         $new_parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 926                                                                 (SELECT `parent` FROM `item`
 927                                                                         WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s')) LIMIT 1",
 928                                                 intval($uid), dbesc($first_id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 929                                         if ($new_parents) {
 930                                                 if ($new_parents[0]["parent"] == $parent["parent"]) {
 931                                                         // Option 2: This post is already present inside our thread - but not as thread starter
 932                                                         logger("Option 2: uri present in our thread: ".$first_id, LOGGER_DEBUG);
 933                                                         $first_id = $parent["uri"];
 934                                                 } else {
 935                                                         // Option 3: Not so good. We have mixed parents. We have to see how to clean this up.
 936                                                         // For now just take the new parent.
 937                                                         $parent = $new_parents[0];
 938                                                         $first_id = $parent["uri"];
 939                                                         logger("Option 3: mixed parents for uri ".$first_id, LOGGER_DEBUG);
 940                                                 }
 941                                         } else {
 942                                                 // Option 1: We hadn't got the real thread starter
 943                                                 // We have to clean up our existing messages.
 944                                                 $parent["id"] = 0;
 945                                                 $parent["uri"] = $first_id;
 946                                                 logger("Option 1: we have a new parent: ".$first_id, LOGGER_DEBUG);
 947                                         }
 948                                 } elseif ($parent["uri"] == "") {
 949                                         $parent["id"] = 0;
 950                                         $parent["uri"] = $first_id;
 951                                 }
 952                         }
 953
 954                         $parent_uri = $parent["uri"];
 955
 956                         // "context" only seems to exist on older servers
 957                         if (isset($single_conv->context->inReplyTo->id)) {
 958                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 959                                                         intval($uid), dbesc($single_conv->context->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 960                                 if ($parent_exists)
 961                                         $parent_uri = $single_conv->context->inReplyTo->id;
 962                         }
 963
 964                         // This is the current way
 965                         if (isset($single_conv->object->inReplyTo->id)) {
 966                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 967                                                         intval($uid), dbesc($single_conv->object->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 968                                 if ($parent_exists)
 969                                         $parent_uri = $single_conv->object->inReplyTo->id;
 970                         }
 971
 972                         $message_exists = q("SELECT `id`, `parent`, `uri` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 973                                                         intval($uid), dbesc($single_conv->id),
 974                                                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 975                         if ($message_exists) {
 976                                 logger("Message ".$single_conv->id." already existed on the system", LOGGER_DEBUG);
 977
 978                                 if ($parent["id"] != 0) {
 979                                         $existing_message = $message_exists[0];
 980
 981                                         // We improved the way we fetch OStatus messages, this shouldn't happen very often now
 982                                         /// @TODO We have to change the shadow copies as well. This way here is really ugly.
 983                                         if ($existing_message["parent"] != $parent["id"]) {
 984                                                 logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
 985
 986                                                 // Update the parent id of the selected item
 987                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `id` = %d",
 988                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["id"]));
 989
 990                                                 // Update the parent uri in the thread - but only if it points to itself
 991                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE `id` = %d AND `uri` = `thr-parent`",
 992                                                         dbesc($parent_uri), intval($existing_message["id"]));
 993
 994                                                 // try to change all items of the same parent
 995                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `parent` = %d",
 996                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["parent"]));
 997
 998                                                 // Update the parent uri in the thread - but only if it points to itself
 999                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE (`parent` = %d) AND (`uri` = `thr-parent`)",
1000                                                         dbesc($parent["uri"]), intval($existing_message["parent"]));
1001
1002                                                 // Now delete the thread
1003                                                 delete_thread($existing_message["parent"]);
1004                                         }
1005                                 }
1006
1007                                 // The item we are having on the system is the one that we wanted to store via the item array
1008                                 if (isset($item["uri"]) AND ($item["uri"] == $existing_message["uri"])) {
1009                                         $item = array();
1010                                         $item_stored = 0;
1011                                 }
1012
1013                                 continue;
1014                         }
1015
1016                         if (is_array($single_conv->to))
1017                                 foreach($single_conv->to AS $to)
1018                                         if ($importer["nurl"] == normalise_link($to->id))
1019                                                 $mention = true;
1020
1021                         $actor = $single_conv->actor->id;
1022                         if (isset($single_conv->actor->url))
1023                                 $actor = $single_conv->actor->url;
1024
1025                         $details = self::get_actor_details($actor, $uid, $parent["contact-id"]);
1026
1027                         // Do we only want to import threads that were started by our contacts?
1028                         if ($details["not_following"] AND $new_parent AND get_config('system','ostatus_full_threads')) {
1029                                 logger("Don't import uri ".$first_id." because user ".$uid." doesn't follow the person ".$actor, LOGGER_DEBUG);
1030                                 continue;
1031                         }
1032
1033                         $arr = array();
1034                         $arr["network"] = $details["network"];
1035                         $arr["uri"] = $single_conv->id;
1036                         $arr["plink"] = $plink;
1037                         $arr["uid"] = $uid;
1038                         $arr["contact-id"] = $details["contact_id"];
1039                         $arr["parent-uri"] = $parent_uri;
1040                         $arr["created"] = $single_conv->published;
1041                         $arr["edited"] = $single_conv->published;
1042                         $arr["owner-name"] = $single_conv->actor->displayName;
1043                         if ($arr["owner-name"] == '')
1044                                 $arr["owner-name"] = $single_conv->actor->contact->displayName;
1045                         if ($arr["owner-name"] == '')
1046                                 $arr["owner-name"] = $single_conv->actor->portablecontacts_net->displayName;
1047
1048                         $arr["owner-link"] = $actor;
1049                         $arr["owner-avatar"] = $single_conv->actor->image->url;
1050                         $arr["author-name"] = $arr["owner-name"];
1051                         $arr["author-link"] = $actor;
1052                         $arr["author-avatar"] = $single_conv->actor->image->url;
1053                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->content));
1054
1055                         if (isset($single_conv->status_net->notice_info->source))
1056                                 $arr["app"] = strip_tags($single_conv->status_net->notice_info->source);
1057                         elseif (isset($single_conv->statusnet->notice_info->source))
1058                                 $arr["app"] = strip_tags($single_conv->statusnet->notice_info->source);
1059                         elseif (isset($single_conv->statusnet_notice_info->source))
1060                                 $arr["app"] = strip_tags($single_conv->statusnet_notice_info->source);
1061                         elseif (isset($single_conv->provider->displayName))
1062                                 $arr["app"] = $single_conv->provider->displayName;
1063                         else
1064                                 $arr["app"] = "OStatus";
1065
1066
1067                         $arr["object"] = json_encode($single_conv);
1068                         $arr["verb"] = $parent["verb"];
1069                         $arr["visible"] = $parent["visible"];
1070                         $arr["location"] = $single_conv->location->displayName;
1071                         $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1072
1073                         // Is it a reshared item?
1074                         if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1075                                 if (is_array($single_conv->object))
1076                                         $single_conv->object = $single_conv->object[0];
1077
1078                                 logger("Found reshared item ".$single_conv->object->id);
1079
1080                                 // $single_conv->object->context->conversation;
1081
1082                                 if (isset($single_conv->object->object->id))
1083                                         $arr["uri"] = $single_conv->object->object->id;
1084                                 else
1085                                         $arr["uri"] = $single_conv->object->id;
1086
1087                                 if (isset($single_conv->object->object->url))
1088                                         $plink = self::convert_href($single_conv->object->object->url);
1089                                 else
1090                                         $plink = self::convert_href($single_conv->object->url);
1091
1092                                 if (isset($single_conv->object->object->content))
1093                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1094                                 else
1095                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1096
1097                                 $arr["plink"] = $plink;
1098
1099                                 $arr["created"] = $single_conv->object->published;
1100                                 $arr["edited"] = $single_conv->object->published;
1101
1102                                 $arr["author-name"] = $single_conv->object->actor->displayName;
1103                                 if ($arr["owner-name"] == '')
1104                                         $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1105
1106                                 $arr["author-link"] = $single_conv->object->actor->url;
1107                                 $arr["author-avatar"] = $single_conv->object->actor->image->url;
1108
1109                                 $arr["app"] = $single_conv->object->provider->displayName."#";
1110                                 //$arr["verb"] = $single_conv->object->verb;
1111
1112                                 $arr["location"] = $single_conv->object->location->displayName;
1113                                 $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1114                         }
1115
1116                         if ($arr["location"] == "")
1117                                 unset($arr["location"]);
1118
1119                         if ($arr["coord"] == "")
1120                                 unset($arr["coord"]);
1121
1122                         // Copy fields from given item array
1123                         if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1124                                 $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1125                                                         "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1126                                                         "title", "attach", "app", "type", "location", "contact-id", "uri");
1127                                 foreach ($copy_fields AS $field)
1128                                         if (isset($item[$field]))
1129                                                 $arr[$field] = $item[$field];
1130
1131                         }
1132
1133                         $newitem = item_store($arr);
1134                         if (!$newitem) {
1135                                 logger("Item wasn't stored ".print_r($arr, true), LOGGER_DEBUG);
1136                                 continue;
1137                         }
1138
1139                         if (isset($item["uri"]) AND ($item["uri"] == $arr["uri"])) {
1140                                 $item = array();
1141                                 $item_stored = $newitem;
1142                         }
1143
1144                         logger('Stored new item '.$plink.' for parent '.$arr["parent-uri"].' under id '.$newitem, LOGGER_DEBUG);
1145
1146                         // Add the conversation entry (but don't fetch the whole conversation)
1147                         self::store_conversation($newitem, $conversation_url);
1148
1149                         // If the newly created item is the top item then change the parent settings of the thread
1150                         // This shouldn't happen anymore. This is supposed to be absolote.
1151                         if ($arr["uri"] == $first_id) {
1152                                 logger('setting new parent to id '.$newitem);
1153                                 $new_parents = q("SELECT `id`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
1154                                         intval($uid), intval($newitem));
1155                                 if ($new_parents)
1156                                         $parent = $new_parents[0];
1157                         }
1158                 }
1159
1160                 if (($item_stored < 0) AND (count($item) > 0)) {
1161
1162                         if (get_config('system','ostatus_full_threads')) {
1163                                 $details = self::get_actor_details($item["owner-link"], $uid, $item["contact-id"]);
1164                                 if ($details["not_following"]) {
1165                                         logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1166                                         return false;
1167                                 }
1168                         }
1169
1170                         $item_stored = item_store($item, true);
1171                         if ($item_stored) {
1172                                 logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1173                                 self::store_conversation($item_stored, $conversation_url);
1174                         }
1175                 }
1176
1177                 return($item_stored);
1178         }
1179
1180         /**
1181          * @brief Stores conversation data into the database
1182          *
1183          * @param integer $itemid The id of the item
1184          * @param string $conversation_url The uri of the conversation
1185          */
1186         private function store_conversation($itemid, $conversation_url) {
1187
1188                 $conversation_url = self::convert_href($conversation_url);
1189
1190                 $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1191                 if (!$messages)
1192                         return;
1193                 $message = $messages[0];
1194
1195                 // Store conversation url if not done before
1196                 $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1197                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1198
1199                 if (!$conversation) {
1200                         $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1201                                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1202                                 dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1203                         logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1204                 }
1205         }
1206
1207         /**
1208          * @brief Checks if the current post is a reshare
1209          *
1210          * @param array $item The item array of thw post
1211          *
1212          * @return string The guid if the post is a reshare
1213          */
1214         private function get_reshared_guid($item) {
1215                 $body = trim($item["body"]);
1216
1217                 // Skip if it isn't a pure repeated messages
1218                 // Does it start with a share?
1219                 if (strpos($body, "[share") > 0)
1220                         return("");
1221
1222                 // Does it end with a share?
1223                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
1224                         return("");
1225
1226                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1227                 // Skip if there is no shared message in there
1228                 if ($body == $attributes)
1229                         return(false);
1230
1231                 $guid = "";
1232                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1233                 if ($matches[1] != "")
1234                         $guid = $matches[1];
1235
1236                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1237                 if ($matches[1] != "")
1238                         $guid = $matches[1];
1239
1240                 return $guid;
1241         }
1242
1243         /**
1244          * @brief Cleans the body of a post if it contains picture links
1245          *
1246          * @param string $body The body
1247          *
1248          * @return string The cleaned body
1249          */
1250         private function format_picture_post($body) {
1251                 $siteinfo = get_attached_data($body);
1252
1253                 if (($siteinfo["type"] == "photo")) {
1254                         if (isset($siteinfo["preview"]))
1255                                 $preview = $siteinfo["preview"];
1256                         else
1257                                 $preview = $siteinfo["image"];
1258
1259                         // Is it a remote picture? Then make a smaller preview here
1260                         $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
1261
1262                         // Is it a local picture? Then make it smaller here
1263                         $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
1264                         $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
1265
1266                         if (isset($siteinfo["url"]))
1267                                 $url = $siteinfo["url"];
1268                         else
1269                                 $url = $siteinfo["image"];
1270
1271                         $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
1272                 }
1273
1274                 return $body;
1275         }
1276
1277         /**
1278          * @brief Adds the header elements to the XML document
1279          *
1280          * @param object $doc XML document
1281          * @param array $owner Contact data of the poster
1282          *
1283          * @return object header root element
1284          */
1285         private function add_header($doc, $owner) {
1286
1287                 $a = get_app();
1288
1289                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1290                 $doc->appendChild($root);
1291
1292                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1293                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1294                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1295                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1296                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1297                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1298                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1299
1300                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1301                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1302                 xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
1303                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1304                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1305                 xml::add_element($doc, $root, "logo", $owner["photo"]);
1306                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1307
1308                 $author = self::add_author($doc, $owner);
1309                 $root->appendChild($author);
1310
1311                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1312                 xml::add_element($doc, $root, "link", "", $attributes);
1313
1314                 /// @TODO We have to find out what this is
1315                 /// $attributes = array("href" => App::get_baseurl()."/sup",
1316                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1317                 ///             "type" => "application/json");
1318                 /// xml::add_element($doc, $root, "link", "", $attributes);
1319
1320                 self::hublinks($doc, $root);
1321
1322                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1323                 xml::add_element($doc, $root, "link", "", $attributes);
1324
1325                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1326                 xml::add_element($doc, $root, "link", "", $attributes);
1327
1328                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1329                 xml::add_element($doc, $root, "link", "", $attributes);
1330
1331                 $attributes = array("href" => App::get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1332                                 "rel" => "self", "type" => "application/atom+xml");
1333                 xml::add_element($doc, $root, "link", "", $attributes);
1334
1335                 return $root;
1336         }
1337
1338         /**
1339          * @brief Add the link to the push hubs to the XML document
1340          *
1341          * @param object $doc XML document
1342          * @param object $root XML root element where the hub links are added
1343          */
1344         public static function hublinks($doc, $root) {
1345                 $hub = get_config('system','huburl');
1346
1347                 $hubxml = '';
1348                 if(strlen($hub)) {
1349                         $hubs = explode(',', $hub);
1350                         if(count($hubs)) {
1351                                 foreach($hubs as $h) {
1352                                         $h = trim($h);
1353                                         if(! strlen($h))
1354                                                 continue;
1355                                         if ($h === '[internal]')
1356                                                 $h = App::get_baseurl() . '/pubsubhubbub';
1357                                         xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1358                                 }
1359                         }
1360                 }
1361         }
1362
1363         /**
1364          * @brief Adds attachement data to the XML document
1365          *
1366          * @param object $doc XML document
1367          * @param object $root XML root element where the hub links are added
1368          * @param array $item Data of the item that is to be posted
1369          */
1370         private function get_attachment($doc, $root, $item) {
1371                 $o = "";
1372                 $siteinfo = get_attached_data($item["body"]);
1373
1374                 switch($siteinfo["type"]) {
1375                         case 'link':
1376                                 $attributes = array("rel" => "enclosure",
1377                                                 "href" => $siteinfo["url"],
1378                                                 "type" => "text/html; charset=UTF-8",
1379                                                 "length" => "",
1380                                                 "title" => $siteinfo["title"]);
1381                                 xml::add_element($doc, $root, "link", "", $attributes);
1382                                 break;
1383                         case 'photo':
1384                                 $imgdata = get_photo_info($siteinfo["image"]);
1385                                 $attributes = array("rel" => "enclosure",
1386                                                 "href" => $siteinfo["image"],
1387                                                 "type" => $imgdata["mime"],
1388                                                 "length" => intval($imgdata["size"]));
1389                                 xml::add_element($doc, $root, "link", "", $attributes);
1390                                 break;
1391                         case 'video':
1392                                 $attributes = array("rel" => "enclosure",
1393                                                 "href" => $siteinfo["url"],
1394                                                 "type" => "text/html; charset=UTF-8",
1395                                                 "length" => "",
1396                                                 "title" => $siteinfo["title"]);
1397                                 xml::add_element($doc, $root, "link", "", $attributes);
1398                                 break;
1399                         default:
1400                                 break;
1401                 }
1402
1403                 if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1404                         $photodata = get_photo_info($siteinfo["image"]);
1405
1406                         $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1407                         xml::add_element($doc, $root, "link", "", $attributes);
1408                 }
1409
1410
1411                 $arr = explode('[/attach],',$item['attach']);
1412                 if(count($arr)) {
1413                         foreach($arr as $r) {
1414                                 $matches = false;
1415                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1416                                 if($cnt) {
1417                                         $attributes = array("rel" => "enclosure",
1418                                                         "href" => $matches[1],
1419                                                         "type" => $matches[3]);
1420
1421                                         if(intval($matches[2]))
1422                                                 $attributes["length"] = intval($matches[2]);
1423
1424                                         if(trim($matches[4]) != "")
1425                                                 $attributes["title"] = trim($matches[4]);
1426
1427                                         xml::add_element($doc, $root, "link", "", $attributes);
1428                                 }
1429                         }
1430                 }
1431         }
1432
1433         /**
1434          * @brief Adds the author element to the XML document
1435          *
1436          * @param object $doc XML document
1437          * @param array $owner Contact data of the poster
1438          *
1439          * @return object author element
1440          */
1441         private function add_author($doc, $owner) {
1442
1443                 $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1444                 if ($r)
1445                         $profile = $r[0];
1446
1447                 $author = $doc->createElement("author");
1448                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1449                 xml::add_element($doc, $author, "uri", $owner["url"]);
1450                 xml::add_element($doc, $author, "name", $owner["name"]);
1451                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
1452
1453                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1454                 xml::add_element($doc, $author, "link", "", $attributes);
1455
1456                 $attributes = array(
1457                                 "rel" => "avatar",
1458                                 "type" => "image/jpeg", // To-Do?
1459                                 "media:width" => 175,
1460                                 "media:height" => 175,
1461                                 "href" => $owner["photo"]);
1462                 xml::add_element($doc, $author, "link", "", $attributes);
1463
1464                 if (isset($owner["thumb"])) {
1465                         $attributes = array(
1466                                         "rel" => "avatar",
1467                                         "type" => "image/jpeg", // To-Do?
1468                                         "media:width" => 80,
1469                                         "media:height" => 80,
1470                                         "href" => $owner["thumb"]);
1471                         xml::add_element($doc, $author, "link", "", $attributes);
1472                 }
1473
1474                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1475                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1476                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1477
1478                 if (trim($owner["location"]) != "") {
1479                         $element = $doc->createElement("poco:address");
1480                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1481                         $author->appendChild($element);
1482                 }
1483
1484                 if (trim($profile["homepage"]) != "") {
1485                         $urls = $doc->createElement("poco:urls");
1486                         xml::add_element($doc, $urls, "poco:type", "homepage");
1487                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1488                         xml::add_element($doc, $urls, "poco:primary", "true");
1489                         $author->appendChild($urls);
1490                 }
1491
1492                 if (count($profile)) {
1493                         xml::add_element($doc, $author, "followers", "", array("url" => App::get_baseurl()."/viewcontacts/".$owner["nick"]));
1494                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1495                 }
1496
1497                 return $author;
1498         }
1499
1500         /**
1501          * @TODO Picture attachments should look like this:
1502          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1503          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1504          *
1505         */
1506
1507         /**
1508          * @brief Returns the given activity if present - otherwise returns the "post" activity
1509          *
1510          * @param array $item Data of the item that is to be posted
1511          *
1512          * @return string activity
1513          */
1514         function construct_verb($item) {
1515                 if ($item['verb'])
1516                         return $item['verb'];
1517                 return ACTIVITY_POST;
1518         }
1519
1520         /**
1521          * @brief Returns the given object type if present - otherwise returns the "note" object type
1522          *
1523          * @param array $item Data of the item that is to be posted
1524          *
1525          * @return string Object type
1526          */
1527         function construct_objecttype($item) {
1528                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1529                         return $item['object-type'];
1530                 return ACTIVITY_OBJ_NOTE;
1531         }
1532
1533         /**
1534          * @brief Adds an entry element to the XML document
1535          *
1536          * @param object $doc XML document
1537          * @param array $item Data of the item that is to be posted
1538          * @param array $owner Contact data of the poster
1539          * @param bool $toplevel
1540          *
1541          * @return object Entry element
1542          */
1543         private function entry($doc, $item, $owner, $toplevel = false) {
1544                 $repeated_guid = self::get_reshared_guid($item);
1545                 if ($repeated_guid != "")
1546                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1547
1548                 if ($xml)
1549                         return $xml;
1550
1551                 if ($item["verb"] == ACTIVITY_LIKE)
1552                         return self::like_entry($doc, $item, $owner, $toplevel);
1553                 else
1554                         return self::note_entry($doc, $item, $owner, $toplevel);
1555         }
1556
1557         /**
1558          * @brief Adds a source entry to the XML document
1559          *
1560          * @param object $doc XML document
1561          * @param array $contact Array of the contact that is added
1562          *
1563          * @return object Source element
1564          */
1565         private function source_entry($doc, $contact) {
1566                 $source = $doc->createElement("source");
1567                 xml::add_element($doc, $source, "id", $contact["poll"]);
1568                 xml::add_element($doc, $source, "title", $contact["name"]);
1569                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1570                                                                 "type" => "text/html",
1571                                                                 "href" => $contact["alias"]));
1572                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1573                                                                 "type" => "application/atom+xml",
1574                                                                 "href" => $contact["poll"]));
1575                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1576                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1577
1578                 return $source;
1579         }
1580
1581         /**
1582          * @brief Fetches contact data from the contact or the gcontact table
1583          *
1584          * @param string $url URL of the contact
1585          * @param array $owner Contact data of the poster
1586          *
1587          * @return array Contact array
1588          */
1589         private function contact_entry($url, $owner) {
1590
1591                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1592                         dbesc(normalise_link($url)), intval($owner["uid"]));
1593                 if ($r) {
1594                         $contact = $r[0];
1595                         $contact["uid"] = -1;
1596                 }
1597
1598                 if (!$r) {
1599                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1600                                 dbesc(normalise_link($url)));
1601                         if ($r) {
1602                                 $contact = $r[0];
1603                                 $contact["uid"] = -1;
1604                                 $contact["success_update"] = $contact["updated"];
1605                         }
1606                 }
1607
1608                 if (!$r)
1609                         $contact = owner;
1610
1611                 if (!isset($contact["poll"])) {
1612                         $data = probe_url($url);
1613                         $contact["poll"] = $data["poll"];
1614
1615                         if (!$contact["alias"])
1616                                 $contact["alias"] = $data["alias"];
1617                 }
1618
1619                 if (!isset($contact["alias"]))
1620                         $contact["alias"] = $contact["url"];
1621
1622                 return $contact;
1623         }
1624
1625         /**
1626          * @brief Adds an entry element with reshared content
1627          *
1628          * @param object $doc XML document
1629          * @param array $item Data of the item that is to be posted
1630          * @param array $owner Contact data of the poster
1631          * @param $repeated_guid
1632          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1633          *
1634          * @return object Entry element
1635          */
1636         private function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1637
1638                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1639                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1640                 }
1641
1642                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1643
1644                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1645                         intval($owner["uid"]), dbesc($repeated_guid),
1646                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1647                 if ($r)
1648                         $repeated_item = $r[0];
1649                 else
1650                         return false;
1651
1652                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1653
1654                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1655
1656                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1657
1658                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1659
1660                 $as_object = $doc->createElement("activity:object");
1661
1662                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1663
1664                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1665
1666                 $author = self::add_author($doc, $contact);
1667                 $as_object->appendChild($author);
1668
1669                 $as_object2 = $doc->createElement("activity:object");
1670
1671                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1672
1673                 $title = sprintf("New comment by %s", $contact["nick"]);
1674
1675                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1676
1677                 $as_object->appendChild($as_object2);
1678
1679                 self::entry_footer($doc, $as_object, $item, $owner, false);
1680
1681                 $source = self::source_entry($doc, $contact);
1682
1683                 $as_object->appendChild($source);
1684
1685                 $entry->appendChild($as_object);
1686
1687                 self::entry_footer($doc, $entry, $item, $owner);
1688
1689                 return $entry;
1690         }
1691
1692         /**
1693          * @brief Adds an entry element with a "like"
1694          *
1695          * @param object $doc XML document
1696          * @param array $item Data of the item that is to be posted
1697          * @param array $owner Contact data of the poster
1698          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1699          *
1700          * @return object Entry element with "like"
1701          */
1702         private function like_entry($doc, $item, $owner, $toplevel) {
1703
1704                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1705                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1706                 }
1707
1708                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1709
1710                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1711                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1712
1713                 $as_object = $doc->createElement("activity:object");
1714
1715                 $parent = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
1716                         dbesc($item["thr-parent"]), intval($item["uid"]));
1717                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1718
1719                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1720
1721                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1722
1723                 $entry->appendChild($as_object);
1724
1725                 self::entry_footer($doc, $entry, $item, $owner);
1726
1727                 return $entry;
1728         }
1729
1730         /**
1731          * @brief Adds a regular entry element
1732          *
1733          * @param object $doc XML document
1734          * @param array $item Data of the item that is to be posted
1735          * @param array $owner Contact data of the poster
1736          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1737          *
1738          * @return object Entry element
1739          */
1740         private function note_entry($doc, $item, $owner, $toplevel) {
1741
1742                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1743                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1744                 }
1745
1746                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1747
1748                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1749
1750                 self::entry_content($doc, $entry, $item, $owner, $title);
1751
1752                 self::entry_footer($doc, $entry, $item, $owner);
1753
1754                 return $entry;
1755         }
1756
1757         /**
1758          * @brief Adds a header element to the XML document
1759          *
1760          * @param object $doc XML document
1761          * @param object $entry The entry element where the elements are added
1762          * @param array $owner Contact data of the poster
1763          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1764          *
1765          * @return string The title for the element
1766          */
1767         private function entry_header($doc, &$entry, $owner, $toplevel) {
1768                 /// @todo Check if this title stuff is really needed (I guess not)
1769                 if (!$toplevel) {
1770                         $entry = $doc->createElement("entry");
1771                         $title = sprintf("New note by %s", $owner["nick"]);
1772                 } else {
1773                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1774
1775                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1776                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1777                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1778                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1779                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1780                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1781                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1782
1783                         $author = self::add_author($doc, $owner);
1784                         $entry->appendChild($author);
1785
1786                         $title = sprintf("New comment by %s", $owner["nick"]);
1787                 }
1788                 return $title;
1789         }
1790
1791         /**
1792          * @brief Adds elements to the XML document
1793          *
1794          * @param object $doc XML document
1795          * @param object $entry Entry element where the content is added
1796          * @param array $item Data of the item that is to be posted
1797          * @param array $owner Contact data of the poster
1798          * @param string $title Title for the post
1799          * @param string $verb The activity verb
1800          * @param bool $complete Add the "status_net" element?
1801          */
1802         private function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
1803
1804                 if ($verb == "")
1805                         $verb = self::construct_verb($item);
1806
1807                 xml::add_element($doc, $entry, "id", $item["uri"]);
1808                 xml::add_element($doc, $entry, "title", $title);
1809
1810                 $body = self::format_picture_post($item['body']);
1811
1812                 if ($item['title'] != "")
1813                         $body = "[b]".$item['title']."[/b]\n\n".$body;
1814
1815                 $body = bbcode($body, false, false, 7);
1816
1817                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
1818
1819                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1820                                                                 "href" => App::get_baseurl()."/display/".$item["guid"]));
1821
1822                 if ($complete)
1823                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1824
1825                 xml::add_element($doc, $entry, "activity:verb", $verb);
1826
1827                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1828                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1829         }
1830
1831         /**
1832          * @brief Adds the elements at the foot of an entry to the XML document
1833          *
1834          * @param object $doc XML document
1835          * @param object $entry The entry element where the elements are added
1836          * @param array $item Data of the item that is to be posted
1837          * @param array $owner Contact data of the poster
1838          * @param $complete
1839          */
1840         private function entry_footer($doc, $entry, $item, $owner, $complete = true) {
1841
1842                 $mentioned = array();
1843
1844                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1845                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1846                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1847
1848                         $attributes = array(
1849                                         "ref" => $parent_item,
1850                                         "type" => "text/html",
1851                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1852                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1853
1854                         $attributes = array(
1855                                         "rel" => "related",
1856                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1857                         xml::add_element($doc, $entry, "link", "", $attributes);
1858
1859                         $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1860                         $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1861
1862                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
1863                                         intval($owner["uid"]),
1864                                         dbesc($parent_item));
1865                         if ($thrparent) {
1866                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
1867                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
1868                         }
1869                 }
1870
1871                 xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation",
1872                                                         "href" => App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]));
1873                 xml::add_element($doc, $entry, "ostatus:conversation", App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]);
1874
1875                 $tags = item_getfeedtags($item);
1876
1877                 if(count($tags))
1878                         foreach($tags as $t)
1879                                 if ($t[0] == "@")
1880                                         $mentioned[$t[1]] = $t[1];
1881
1882                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1883                 $newmentions = array();
1884                 foreach ($mentioned AS $mention) {
1885                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
1886                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
1887                 }
1888                 $mentioned = $newmentions;
1889
1890                 foreach ($mentioned AS $mention) {
1891                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1892                                 intval($owner["uid"]),
1893                                 dbesc(normalise_link($mention)));
1894                         if ($r[0]["forum"] OR $r[0]["prv"])
1895                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1896                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
1897                                                                                         "href" => $mention));
1898                         else
1899                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1900                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
1901                                                                                         "href" => $mention));
1902                 }
1903
1904                 if (!$item["private"]) {
1905                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
1906                                                                         "href" => "http://activityschema.org/collection/public"));
1907                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1908                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
1909                                                                         "href" => "http://activityschema.org/collection/public"));
1910                 }
1911
1912                 if(count($tags))
1913                         foreach($tags as $t)
1914                                 if ($t[0] != "@")
1915                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
1916
1917                 self::get_attachment($doc, $entry, $item);
1918
1919                 if ($complete) {
1920                         $app = $item["app"];
1921                         if ($app == "")
1922                                 $app = "web";
1923
1924                         $attributes = array("local_id" => $item["id"], "source" => $app);
1925
1926                         if (isset($parent["id"]))
1927                                 $attributes["repeat_of"] = $parent["id"];
1928
1929                         if ($item["coord"] != "")
1930                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
1931
1932                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
1933                 }
1934         }
1935
1936         /**
1937          * @brief Creates the XML feed for a given nickname
1938          *
1939          * @param app $a The application class
1940          * @param string $owner_nick Nickname of the feed owner
1941          * @param string $last_update Date of the last update
1942          *
1943          * @return string XML feed
1944          */
1945         public static function feed(&$a, $owner_nick, $last_update) {
1946
1947                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
1948                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
1949                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
1950                                 dbesc($owner_nick));
1951                 if (!$r)
1952                         return;
1953
1954                 $owner = $r[0];
1955
1956                 if(!strlen($last_update))
1957                         $last_update = 'now -30 days';
1958
1959                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
1960
1961                 $items = q("SELECT STRAIGHT_JOIN `item`.*, `item`.`id` AS `item_id` FROM `item`
1962                                 INNER JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1963                                 LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
1964                                 WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
1965                                         AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1966                                         AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
1967                                                 OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
1968                                         AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
1969                                                 OR (`item`.`author-link` IN ('%s', '%s')))
1970                                 ORDER BY `item`.`received` DESC
1971                                 LIMIT 0, 300",
1972                                 intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
1973                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1974                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1975                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1976                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
1977                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
1978                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
1979                         );
1980
1981                 $doc = new DOMDocument('1.0', 'utf-8');
1982                 $doc->formatOutput = true;
1983
1984                 $root = self::add_header($doc, $owner);
1985
1986                 foreach ($items AS $item) {
1987                         $entry = self::entry($doc, $item, $owner);
1988                         $root->appendChild($entry);
1989                 }
1990
1991                 return(trim($doc->saveXML()));
1992         }
1993
1994         /**
1995          * @brief Creates the XML for a salmon message
1996          *
1997          * @param array $item Data of the item that is to be posted
1998          * @param array $owner Contact data of the poster
1999          *
2000          * @return string XML for the salmon
2001          */
2002         public static function salmon($item,$owner) {
2003
2004                 $doc = new DOMDocument('1.0', 'utf-8');
2005                 $doc->formatOutput = true;
2006
2007                 $entry = self::entry($doc, $item, $owner, true);
2008
2009                 $doc->appendChild($entry);
2010
2011                 return(trim($doc->saveXML()));
2012         }
2013 }
2014 ?>