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["hide"] = false; // OStatus contacts are never hidden
 165                         $contact["photo"] = $author["author-avatar"];
 166                         update_gcontact($contact);
 167                 }
 168
 169                 return($author);
 170         }
 171
 172         /**
 173          * @brief Fetches author data from a given XML string
 174          *
 175          * @param string $xml The XML
 176          * @param array $importer user record of the importing user
 177          *
 178          * @return array Array of author related entries for the item
 179          */
 180         public static function salmon_author($xml, $importer) {
 181
 182                 if ($xml == "")
 183                         return;
 184
 185                 $doc = new DOMDocument();
 186                 @$doc->loadXML($xml);
 187
 188                 $xpath = new DomXPath($doc);
 189                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 190                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 191                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 192                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 193                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 194                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 195                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 196                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 197
 198                 $entries = $xpath->query('/atom:entry');
 199
 200                 foreach ($entries AS $entry) {
 201                         // fetch the author
 202                         $author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
 203                         return $author;
 204                 }
 205         }
 206
 207         /**
 208          * @brief Imports an XML string containing OStatus elements
 209          *
 210          * @param string $xml The XML
 211          * @param array $importer user record of the importing user
 212          * @param $contact
 213          * @param array $hub Called by reference, returns the fetched hub data
 214          */
 215         public static function import($xml,$importer,&$contact, &$hub) {
 216                 /// @todo this function is too long. It has to be split in many parts
 217
 218                 logger("Import OStatus message", LOGGER_DEBUG);
 219
 220                 if ($xml == "")
 221                         return;
 222
 223                 //$tempfile = tempnam(get_temppath(), "import");
 224                 //file_put_contents($tempfile, $xml);
 225
 226                 $doc = new DOMDocument();
 227                 @$doc->loadXML($xml);
 228
 229                 $xpath = new DomXPath($doc);
 230                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 231                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 232                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 233                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 234                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 235                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 236                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 237                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 238
 239                 $gub = "";
 240                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
 241                 if (is_object($hub_attributes))
 242                         foreach($hub_attributes AS $hub_attribute)
 243                                 if ($hub_attribute->name == "href") {
 244                                         $hub = $hub_attribute->textContent;
 245                                         logger("Found hub ".$hub, LOGGER_DEBUG);
 246                                 }
 247
 248                 $header = array();
 249                 $header["uid"] = $importer["uid"];
 250                 $header["network"] = NETWORK_OSTATUS;
 251                 $header["type"] = "remote";
 252                 $header["wall"] = 0;
 253                 $header["origin"] = 0;
 254                 $header["gravity"] = GRAVITY_PARENT;
 255
 256                 // it could either be a received post or a post we fetched by ourselves
 257                 // depending on that, the first node is different
 258                 $first_child = $doc->firstChild->tagName;
 259
 260                 if ($first_child == "feed")
 261                         $entries = $xpath->query('/atom:feed/atom:entry');
 262                 else
 263                         $entries = $xpath->query('/atom:entry');
 264
 265                 $conversation = "";
 266                 $conversationlist = array();
 267                 $item_id = 0;
 268
 269                 // Reverse the order of the entries
 270                 $entrylist = array();
 271
 272                 foreach ($entries AS $entry)
 273                         $entrylist[] = $entry;
 274
 275                 foreach (array_reverse($entrylist) AS $entry) {
 276
 277                         $mention = false;
 278
 279                         // fetch the author
 280                         if ($first_child == "feed")
 281                                 $author = self::fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
 282                         else
 283                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, false);
 284
 285                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 286                         if ($value != "")
 287                                 $nickname = $value;
 288                         else
 289                                 $nickname = $author["author-name"];
 290
 291                         $item = array_merge($header, $author);
 292
 293                         // Now get the item
 294                         $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 295
 296                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 297                                 intval($importer["uid"]), dbesc($item["uri"]));
 298                         if ($r) {
 299                                 logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
 300                                 continue;
 301                         }
 302
 303                         $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
 304                         $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 305
 306                         if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 307                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 308                                 $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 309                         } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION)
 310                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 311
 312                         $item["object"] = $xml;
 313                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 314
 315                         /// @TODO
 316                         /// Delete a message
 317                         if ($item["verb"] == "qvitter-delete-notice") {
 318                                 // ignore "Delete" messages (by now)
 319                                 logger("Ignore delete message ".print_r($item, true));
 320                                 continue;
 321                         }
 322
 323                         if ($item["verb"] == ACTIVITY_JOIN) {
 324                                 // ignore "Join" messages
 325                                 logger("Ignore join message ".print_r($item, true));
 326                                 continue;
 327                         }
 328
 329                         if ($item["verb"] == ACTIVITY_FOLLOW) {
 330                                 new_follower($importer, $contact, $item, $nickname);
 331                                 continue;
 332                         }
 333
 334                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 335                                 lose_follower($importer, $contact, $item, $dummy);
 336                                 continue;
 337                         }
 338
 339                         if ($item["verb"] == ACTIVITY_FAVORITE) {
 340                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 341                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
 342
 343                                 $item["verb"] = ACTIVITY_LIKE;
 344                                 $item["parent-uri"] = $orig_uri;
 345                                 $item["gravity"] = GRAVITY_LIKE;
 346                         }
 347
 348                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 349                                 // Ignore "Unfavorite" message
 350                                 logger("Ignore unfavorite message ".print_r($item, true));
 351                                 continue;
 352                         }
 353
 354                         // http://activitystrea.ms/schema/1.0/rsvp-yes
 355                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE)))
 356                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 357
 358                         $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 359                         $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 360                         $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 361
 362                         $related = "";
 363
 364                         $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 365                         if (is_object($inreplyto->item(0))) {
 366                                 foreach($inreplyto->item(0)->attributes AS $attributes) {
 367                                         if ($attributes->name == "ref")
 368                                                 $item["parent-uri"] = $attributes->textContent;
 369                                         if ($attributes->name == "href")
 370                                                 $related = $attributes->textContent;
 371                                 }
 372                         }
 373
 374                         $georsspoint = $xpath->query('georss:point', $entry);
 375                         if ($georsspoint)
 376                                 $item["coord"] = $georsspoint->item(0)->nodeValue;
 377
 378                         $categories = $xpath->query('atom:category', $entry);
 379                         if ($categories) {
 380                                 foreach ($categories AS $category) {
 381                                         foreach($category->attributes AS $attributes)
 382                                                 if ($attributes->name == "term") {
 383                                                         $term = $attributes->textContent;
 384                                                         if(strlen($item["tag"]))
 385                                                                 $item["tag"] .= ',';
 386                                                         $item["tag"] .= "#[url=".App::get_baseurl()."/search?tag=".$term."]".$term."[/url]";
 387                                                 }
 388                                 }
 389                         }
 390
 391                         $self = "";
 392                         $enclosure = "";
 393
 394                         $links = $xpath->query('atom:link', $entry);
 395                         if ($links) {
 396                                 $rel = "";
 397                                 $href = "";
 398                                 $type = "";
 399                                 $length = "0";
 400                                 $title = "";
 401                                 foreach ($links AS $link) {
 402                                         foreach($link->attributes AS $attributes) {
 403                                                 if ($attributes->name == "href")
 404                                                         $href = $attributes->textContent;
 405                                                 if ($attributes->name == "rel")
 406                                                         $rel = $attributes->textContent;
 407                                                 if ($attributes->name == "type")
 408                                                         $type = $attributes->textContent;
 409                                                 if ($attributes->name == "length")
 410                                                         $length = $attributes->textContent;
 411                                                 if ($attributes->name == "title")
 412                                                         $title = $attributes->textContent;
 413                                         }
 414                                         if (($rel != "") AND ($href != ""))
 415                                                 switch($rel) {
 416                                                         case "alternate":
 417                                                                 $item["plink"] = $href;
 418                                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
 419                                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT))
 420                                                                         $item["body"] .= add_page_info($href);
 421                                                                 break;
 422                                                         case "ostatus:conversation":
 423                                                                 $conversation = $href;
 424                                                                 break;
 425                                                         case "enclosure":
 426                                                                 $enclosure = $href;
 427                                                                 if(strlen($item["attach"]))
 428                                                                         $item["attach"] .= ',';
 429
 430                                                                 $item["attach"] .= '[attach]href="'.$href.'" length="'.$length.'" type="'.$type.'" title="'.$title.'"[/attach]';
 431                                                                 break;
 432                                                         case "related":
 433                                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 434                                                                         if (!isset($item["parent-uri"]))
 435                                                                                 $item["parent-uri"] = $href;
 436
 437                                                                         if ($related == "")
 438                                                                                 $related = $href;
 439                                                                 } else
 440                                                                         $item["body"] .= add_page_info($href);
 441                                                                 break;
 442                                                         case "self":
 443                                                                 $self = $href;
 444                                                                 break;
 445                                                         case "mentioned":
 446                                                                 // Notification check
 447                                                                 if ($importer["nurl"] == normalise_link($href))
 448                                                                         $mention = true;
 449                                                                 break;
 450                                                 }
 451                                 }
 452                         }
 453
 454                         $local_id = "";
 455                         $repeat_of = "";
 456
 457                         $notice_info = $xpath->query('statusnet:notice_info', $entry);
 458                         if ($notice_info AND ($notice_info->length > 0)) {
 459                                 foreach($notice_info->item(0)->attributes AS $attributes) {
 460                                         if ($attributes->name == "source")
 461                                                 $item["app"] = strip_tags($attributes->textContent);
 462                                         if ($attributes->name == "local_id")
 463                                                 $local_id = $attributes->textContent;
 464                                         if ($attributes->name == "repeat_of")
 465                                                 $repeat_of = $attributes->textContent;
 466                                 }
 467                         }
 468
 469                         // Is it a repeated post?
 470                         if ($repeat_of != "") {
 471                                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 472
 473                                 if (is_object($activityobjects)) {
 474
 475                                         $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
 476                                         if (!isset($orig_uri))
 477                                                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 478
 479                                         $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
 480                                         if ($orig_links AND ($orig_links->length > 0))
 481                                                 foreach($orig_links->item(0)->attributes AS $attributes)
 482                                                         if ($attributes->name == "href")
 483                                                                 $orig_link = $attributes->textContent;
 484
 485                                         if (!isset($orig_link))
 486                                                 $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
 487
 488                                         if (!isset($orig_link))
 489                                                 $orig_link =  self::convert_href($orig_uri);
 490
 491                                         $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
 492                                         if (!isset($orig_body))
 493                                                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 494
 495                                         $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 496                                         $orig_edited = $xpath->query('atom:updated/text()', $activityobjects)->item(0)->nodeValue;
 497
 498                                         $orig_contact = $contact;
 499                                         $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 500
 501                                         $item["author-name"] = $orig_author["author-name"];
 502                                         $item["author-link"] = $orig_author["author-link"];
 503                                         $item["author-avatar"] = $orig_author["author-avatar"];
 504                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
 505                                         $item["created"] = $orig_created;
 506                                         $item["edited"] = $orig_edited;
 507
 508                                         $item["uri"] = $orig_uri;
 509                                         $item["plink"] = $orig_link;
 510
 511                                         $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 512
 513                                         $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 514                                         if (!isset($item["object-type"]))
 515                                                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 516                                 }
 517                         }
 518
 519                         //if ($enclosure != "")
 520                         //      $item["body"] .= add_page_info($enclosure);
 521
 522                         if (isset($item["parent-uri"])) {
 523                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 524                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 525
 526                                 if (!$r AND ($related != "")) {
 527                                         $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
 528
 529                                         if ($reply_path != $related) {
 530                                                 logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
 531                                                 $reply_xml = fetch_url($reply_path);
 532
 533                                                 $reply_contact = $contact;
 534                                                 self::import($reply_xml,$importer,$reply_contact, $reply_hub);
 535
 536                                                 // After the import try to fetch the parent item again
 537                                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 538                                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 539                                         }
 540                                 }
 541                                 if ($r) {
 542                                         $item["type"] = 'remote-comment';
 543                                         $item["gravity"] = GRAVITY_COMMENT;
 544                                 }
 545                         } else
 546                                 $item["parent-uri"] = $item["uri"];
 547
 548                         $item_id = self::completion($conversation, $importer["uid"], $item, $self);
 549
 550                         if (!$item_id) {
 551                                 logger("Error storing item", LOGGER_DEBUG);
 552                                 continue;
 553                         }
 554
 555                         logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
 556                 }
 557         }
 558
 559         /**
 560          * @brief Create an url out of an uri
 561          *
 562          * @param string $href URI in the format "parameter1:parameter1:..."
 563          *
 564          * @return string URL in the format http(s)://....
 565          */
 566         public static function convert_href($href) {
 567                 $elements = explode(":",$href);
 568
 569                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 570                         return $href;
 571
 572                 $server = explode(",", $elements[1]);
 573                 $conversation = explode("=", $elements[2]);
 574
 575                 if ((count($elements) == 4) AND ($elements[2] == "post"))
 576                         return "http://".$server[0]."/notice/".$elements[3];
 577
 578                 if ((count($conversation) != 2) OR ($conversation[1] ==""))
 579                         return $href;
 580
 581                 if ($elements[3] == "objectType=thread")
 582                         return "http://".$server[0]."/conversation/".$conversation[1];
 583                 else
 584                         return "http://".$server[0]."/notice/".$conversation[1];
 585
 586                 return $href;
 587         }
 588
 589         /**
 590          * @brief Checks if there are entries in conversations that aren't present on our side
 591          *
 592          * @param bool $mentions Fetch conversations where we are mentioned
 593          * @param bool $override Override the interval setting
 594          */
 595         public static function check_conversations($mentions = false, $override = false) {
 596                 $last = get_config('system','ostatus_last_poll');
 597
 598                 $poll_interval = intval(get_config('system','ostatus_poll_interval'));
 599                 if(! $poll_interval)
 600                         $poll_interval = OSTATUS_DEFAULT_POLL_INTERVAL;
 601
 602                 // Don't poll if the interval is set negative
 603                 if (($poll_interval < 0) AND !$override)
 604                         return;
 605
 606                 if (!$mentions) {
 607                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 608                         if (!$poll_timeframe)
 609                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME;
 610                 } else {
 611                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 612                         if (!$poll_timeframe)
 613                                 $poll_timeframe = OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
 614                 }
 615
 616
 617                 if ($last AND !$override) {
 618                         $next = $last + ($poll_interval * 60);
 619                         if ($next > time()) {
 620                                 logger('poll interval not reached');
 621                                 return;
 622                         }
 623                 }
 624
 625                 logger('cron_start');
 626
 627                 $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
 628
 629                 if ($mentions)
 630                         $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 631                                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 632                                                 WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
 633                                                 GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
 634                 else
 635                         $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 636                                                 WHERE `type` = 7 AND `term` > '%s'
 637                                                 GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
 638
 639                 foreach ($conversations AS $conversation) {
 640                         self::completion($conversation['url'], $conversation['uid']);
 641                 }
 642
 643                 logger('cron_end');
 644
 645                 set_config('system','ostatus_last_poll', time());
 646         }
 647
 648         /**
 649          * @brief Updates the gcontact table with actor data from the conversation
 650          *
 651          * @param object $actor The actor object that contains the contact data
 652          */
 653         private function conv_fetch_actor($actor) {
 654
 655                 // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
 656                 $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
 657
 658                 if (isset($actor->url))
 659                         $contact["url"] = $actor->url;
 660
 661                 if (isset($actor->displayName))
 662                         $contact["name"] = $actor->displayName;
 663
 664                 if (isset($actor->portablecontacts_net->displayName))
 665                         $contact["name"] = $actor->portablecontacts_net->displayName;
 666
 667                 if (isset($actor->portablecontacts_net->preferredUsername))
 668                         $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
 669
 670                 if (isset($actor->id))
 671                         $contact["alias"] = $actor->id;
 672
 673                 if (isset($actor->summary))
 674                         $contact["about"] = $actor->summary;
 675
 676                 if (isset($actor->portablecontacts_net->note))
 677                         $contact["about"] = $actor->portablecontacts_net->note;
 678
 679                 if (isset($actor->portablecontacts_net->addresses->formatted))
 680                         $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
 681
 682
 683                 if (isset($actor->image->url))
 684                         $contact["photo"] = $actor->image->url;
 685
 686                 if (isset($actor->image->width))
 687                         $avatarwidth = $actor->image->width;
 688
 689                 if (is_array($actor->status_net->avatarLinks))
 690                         foreach ($actor->status_net->avatarLinks AS $avatar) {
 691                                 if ($avatarsize < $avatar->width) {
 692                                         $contact["photo"] = $avatar->url;
 693                                         $avatarsize = $avatar->width;
 694                                 }
 695                         }
 696
 697                 $contact["hide"] = false; // OStatus contacts are never hidden
 698                 update_gcontact($contact);
 699         }
 700
 701         /**
 702          * @brief Fetches the conversation url for a given item link or conversation id
 703          *
 704          * @param string $self The link to the posting
 705          * @param string $conversation_id The conversation id
 706          *
 707          * @return string The conversation url
 708          */
 709         private function fetch_conversation($self, $conversation_id = "") {
 710
 711                 if ($conversation_id != "") {
 712                         $elements = explode(":", $conversation_id);
 713
 714                         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 715                                 return $conversation_id;
 716                 }
 717
 718                 if ($self == "")
 719                         return "";
 720
 721                 $json = str_replace(".atom", ".json", $self);
 722
 723                 $raw = fetch_url($json);
 724                 if ($raw == "")
 725                         return "";
 726
 727                 $data = json_decode($raw);
 728                 if (!is_object($data))
 729                         return "";
 730
 731                 $conversation_id = $data->statusnet_conversation_id;
 732
 733                 $pos = strpos($self, "/api/statuses/show/");
 734                 $base_url = substr($self, 0, $pos);
 735
 736                 return $base_url."/conversation/".$conversation_id;
 737         }
 738
 739         /**
 740          * @brief Fetches actor details of a given actor and user id
 741          *
 742          * @param string $actor The actor url
 743          * @param int $uid The user id
 744          * @param int $contact_id The default contact-id
 745          *
 746          * @return array Array with actor details
 747          */
 748         private function get_actor_details($actor, $uid, $contact_id) {
 749
 750                 $details = array();
 751
 752                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
 753                                         $uid, normalise_link($actor), NETWORK_STATUSNET);
 754
 755                 if (!$contact)
 756                         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
 757                                         $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
 758
 759                 if ($contact) {
 760                         logger("Found contact for url ".$actor, LOGGER_DEBUG);
 761                         $details["contact_id"] = $contact[0]["id"];
 762                         $details["network"] = $contact[0]["network"];
 763
 764                         $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
 765                 } else {
 766                         logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
 767
 768                         // Adding a global contact
 769                         /// @TODO Use this data for the post
 770                         $details["global_contact_id"] = get_contact($actor, 0);
 771
 772                         logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
 773
 774                         $details["contact_id"] = $contact_id;
 775                         $details["network"] = NETWORK_OSTATUS;
 776
 777                         $details["not_following"] = true;
 778                 }
 779
 780                 return $details;
 781         }
 782
 783         /**
 784          * @brief Stores an item and completes the thread
 785          *
 786          * @param string $conversation_url The URI of the conversation
 787          * @param integer $uid The user id
 788          * @param array $item Data of the item that is to be posted
 789          *
 790          * @return integer The item id of the posted item array
 791          */
 792         private function completion($conversation_url, $uid, $item = array(), $self = "") {
 793
 794                 /// @todo This function is totally ugly and has to be rewritten totally
 795
 796                 $item_stored = -1;
 797
 798                 $conversation_url = self::fetch_conversation($self, $conversation_url);
 799
 800                 // If the thread shouldn't be completed then store the item and go away
 801                 // Don't do a completion on liked content
 802                 if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
 803                         ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
 804                         $item_stored = item_store($item, true);
 805                         return($item_stored);
 806                 }
 807
 808                 // Get the parent
 809                 $parents = q("SELECT `item`.`id`, `item`.`parent`, `item`.`uri`, `item`.`contact-id`, `item`.`type`,
 810                                 `item`.`verb`, `item`.`visible` FROM `term`
 811                                 STRAIGHT_JOIN `item` AS `thritem` ON `thritem`.`parent` = `term`.`oid`
 812                                 STRAIGHT_JOIN `item` ON `item`.`parent` = `thritem`.`parent`
 813                                 WHERE `term`.`uid` = %d AND `term`.`otype` = %d AND `term`.`type` = %d AND `term`.`url` = '%s'))",
 814                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 815
 816 /*
 817                 $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 818                                 (SELECT `parent` FROM `item` WHERE `id` IN
 819                                         (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
 820                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 821 */
 822                 if ($parents)
 823                         $parent = $parents[0];
 824                 elseif (count($item) > 0) {
 825                         $parent = $item;
 826                         $parent["type"] = "remote";
 827                         $parent["verb"] = ACTIVITY_POST;
 828                         $parent["visible"] = 1;
 829                 } else {
 830                         // Preset the parent
 831                         $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
 832                         if (!$r)
 833                                 return(-2);
 834
 835                         $parent = array();
 836                         $parent["id"] = 0;
 837                         $parent["parent"] = 0;
 838                         $parent["uri"] = "";
 839                         $parent["contact-id"] = $r[0]["id"];
 840                         $parent["type"] = "remote";
 841                         $parent["verb"] = ACTIVITY_POST;
 842                         $parent["visible"] = 1;
 843                 }
 844
 845                 $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
 846                 $pageno = 1;
 847                 $items = array();
 848
 849                 logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
 850
 851                 do {
 852                         $conv_arr = z_fetch_url($conv."?page=".$pageno);
 853
 854                         // If it is a non-ssl site and there is an error, then try ssl or vice versa
 855                         if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
 856                                 $conv = str_replace("http://", "https://", $conv);
 857                                 $conv_as = fetch_url($conv."?page=".$pageno);
 858                         } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
 859                                 $conv = str_replace("https://", "http://", $conv);
 860                                 $conv_as = fetch_url($conv."?page=".$pageno);
 861                         } else
 862                                 $conv_as = $conv_arr["body"];
 863
 864                         $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
 865                         $conv_as = json_decode($conv_as);
 866
 867                         $no_of_items = sizeof($items);
 868
 869                         if (@is_array($conv_as->items))
 870                                 foreach ($conv_as->items AS $single_item)
 871                                         $items[$single_item->id] = $single_item;
 872
 873                         if ($no_of_items == sizeof($items))
 874                                 break;
 875
 876                         $pageno++;
 877
 878                 } while (true);
 879
 880                 logger('fetching conversation done. Found '.count($items).' items');
 881
 882                 if (!sizeof($items)) {
 883                         if (count($item) > 0) {
 884                                 $item_stored = item_store($item, true);
 885
 886                                 if ($item_stored) {
 887                                         logger("Conversation ".$conversation_url." couldn't be fetched. Item uri ".$item["uri"]." stored: ".$item_stored, LOGGER_DEBUG);
 888                                         self::store_conversation($item_id, $conversation_url);
 889                                 }
 890
 891                                 return($item_stored);
 892                         } else
 893                                 return(-3);
 894                 }
 895
 896                 $items = array_reverse($items);
 897
 898                 $r = q("SELECT `nurl` FROM `contact` WHERE `uid` = %d AND `self`", intval($uid));
 899                 $importer = $r[0];
 900
 901                 $new_parent = true;
 902
 903                 foreach ($items as $single_conv) {
 904
 905                         // Update the gcontact table
 906                         self::conv_fetch_actor($single_conv->actor);
 907
 908                         // Test - remove before flight
 909                         //$tempfile = tempnam(get_temppath(), "conversation");
 910                         //file_put_contents($tempfile, json_encode($single_conv));
 911
 912                         $mention = false;
 913
 914                         if (isset($single_conv->object->id))
 915                                 $single_conv->id = $single_conv->object->id;
 916
 917                         $plink = self::convert_href($single_conv->id);
 918                         if (isset($single_conv->object->url))
 919                                 $plink = self::convert_href($single_conv->object->url);
 920
 921                         if (@!$single_conv->id)
 922                                 continue;
 923
 924                         logger("Got id ".$single_conv->id, LOGGER_DEBUG);
 925
 926                         if ($first_id == "") {
 927                                 $first_id = $single_conv->id;
 928
 929                                 // The first post of the conversation isn't our first post. There are three options:
 930                                 // 1. Our conversation hasn't the "real" thread starter
 931                                 // 2. This first post is a post inside our thread
 932                                 // 3. This first post is a post inside another thread
 933                                 if (($first_id != $parent["uri"]) AND ($parent["uri"] != "")) {
 934
 935                                         $new_parent = true;
 936
 937                                         $new_parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 938                                                                 (SELECT `parent` FROM `item`
 939                                                                         WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s')) LIMIT 1",
 940                                                 intval($uid), dbesc($first_id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 941                                         if ($new_parents) {
 942                                                 if ($new_parents[0]["parent"] == $parent["parent"]) {
 943                                                         // Option 2: This post is already present inside our thread - but not as thread starter
 944                                                         logger("Option 2: uri present in our thread: ".$first_id, LOGGER_DEBUG);
 945                                                         $first_id = $parent["uri"];
 946                                                 } else {
 947                                                         // Option 3: Not so good. We have mixed parents. We have to see how to clean this up.
 948                                                         // For now just take the new parent.
 949                                                         $parent = $new_parents[0];
 950                                                         $first_id = $parent["uri"];
 951                                                         logger("Option 3: mixed parents for uri ".$first_id, LOGGER_DEBUG);
 952                                                 }
 953                                         } else {
 954                                                 // Option 1: We hadn't got the real thread starter
 955                                                 // We have to clean up our existing messages.
 956                                                 $parent["id"] = 0;
 957                                                 $parent["uri"] = $first_id;
 958                                                 logger("Option 1: we have a new parent: ".$first_id, LOGGER_DEBUG);
 959                                         }
 960                                 } elseif ($parent["uri"] == "") {
 961                                         $parent["id"] = 0;
 962                                         $parent["uri"] = $first_id;
 963                                 }
 964                         }
 965
 966                         $parent_uri = $parent["uri"];
 967
 968                         // "context" only seems to exist on older servers
 969                         if (isset($single_conv->context->inReplyTo->id)) {
 970                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 971                                                         intval($uid), dbesc($single_conv->context->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 972                                 if ($parent_exists)
 973                                         $parent_uri = $single_conv->context->inReplyTo->id;
 974                         }
 975
 976                         // This is the current way
 977                         if (isset($single_conv->object->inReplyTo->id)) {
 978                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 979                                                         intval($uid), dbesc($single_conv->object->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 980                                 if ($parent_exists)
 981                                         $parent_uri = $single_conv->object->inReplyTo->id;
 982                         }
 983
 984                         $message_exists = q("SELECT `id`, `parent`, `uri` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 985                                                         intval($uid), dbesc($single_conv->id),
 986                                                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 987                         if ($message_exists) {
 988                                 logger("Message ".$single_conv->id." already existed on the system", LOGGER_DEBUG);
 989
 990                                 if ($parent["id"] != 0) {
 991                                         $existing_message = $message_exists[0];
 992
 993                                         // We improved the way we fetch OStatus messages, this shouldn't happen very often now
 994                                         /// @TODO We have to change the shadow copies as well. This way here is really ugly.
 995                                         if ($existing_message["parent"] != $parent["id"]) {
 996                                                 logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
 997
 998                                                 // Update the parent id of the selected item
 999                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `id` = %d",
1000                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["id"]));
1001
1002                                                 // Update the parent uri in the thread - but only if it points to itself
1003                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE `id` = %d AND `uri` = `thr-parent`",
1004                                                         dbesc($parent_uri), intval($existing_message["id"]));
1005
1006                                                 // try to change all items of the same parent
1007                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `parent` = %d",
1008                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["parent"]));
1009
1010                                                 // Update the parent uri in the thread - but only if it points to itself
1011                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE (`parent` = %d) AND (`uri` = `thr-parent`)",
1012                                                         dbesc($parent["uri"]), intval($existing_message["parent"]));
1013
1014                                                 // Now delete the thread
1015                                                 delete_thread($existing_message["parent"]);
1016                                         }
1017                                 }
1018
1019                                 // The item we are having on the system is the one that we wanted to store via the item array
1020                                 if (isset($item["uri"]) AND ($item["uri"] == $existing_message["uri"])) {
1021                                         $item = array();
1022                                         $item_stored = 0;
1023                                 }
1024
1025                                 continue;
1026                         }
1027
1028                         if (is_array($single_conv->to))
1029                                 foreach($single_conv->to AS $to)
1030                                         if ($importer["nurl"] == normalise_link($to->id))
1031                                                 $mention = true;
1032
1033                         $actor = $single_conv->actor->id;
1034                         if (isset($single_conv->actor->url))
1035                                 $actor = $single_conv->actor->url;
1036
1037                         $details = self::get_actor_details($actor, $uid, $parent["contact-id"]);
1038
1039                         // Do we only want to import threads that were started by our contacts?
1040                         if ($details["not_following"] AND $new_parent AND get_config('system','ostatus_full_threads')) {
1041                                 logger("Don't import uri ".$first_id." because user ".$uid." doesn't follow the person ".$actor, LOGGER_DEBUG);
1042                                 continue;
1043                         }
1044
1045                         $arr = array();
1046                         $arr["network"] = $details["network"];
1047                         $arr["uri"] = $single_conv->id;
1048                         $arr["plink"] = $plink;
1049                         $arr["uid"] = $uid;
1050                         $arr["contact-id"] = $details["contact_id"];
1051                         $arr["parent-uri"] = $parent_uri;
1052                         $arr["created"] = $single_conv->published;
1053                         $arr["edited"] = $single_conv->published;
1054                         $arr["owner-name"] = $single_conv->actor->displayName;
1055                         if ($arr["owner-name"] == '')
1056                                 $arr["owner-name"] = $single_conv->actor->contact->displayName;
1057                         if ($arr["owner-name"] == '')
1058                                 $arr["owner-name"] = $single_conv->actor->portablecontacts_net->displayName;
1059
1060                         $arr["owner-link"] = $actor;
1061                         $arr["owner-avatar"] = $single_conv->actor->image->url;
1062                         $arr["author-name"] = $arr["owner-name"];
1063                         $arr["author-link"] = $actor;
1064                         $arr["author-avatar"] = $single_conv->actor->image->url;
1065                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->content));
1066
1067                         if (isset($single_conv->status_net->notice_info->source))
1068                                 $arr["app"] = strip_tags($single_conv->status_net->notice_info->source);
1069                         elseif (isset($single_conv->statusnet->notice_info->source))
1070                                 $arr["app"] = strip_tags($single_conv->statusnet->notice_info->source);
1071                         elseif (isset($single_conv->statusnet_notice_info->source))
1072                                 $arr["app"] = strip_tags($single_conv->statusnet_notice_info->source);
1073                         elseif (isset($single_conv->provider->displayName))
1074                                 $arr["app"] = $single_conv->provider->displayName;
1075                         else
1076                                 $arr["app"] = "OStatus";
1077
1078
1079                         $arr["object"] = json_encode($single_conv);
1080                         $arr["verb"] = $parent["verb"];
1081                         $arr["visible"] = $parent["visible"];
1082                         $arr["location"] = $single_conv->location->displayName;
1083                         $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1084
1085                         // Is it a reshared item?
1086                         if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1087                                 if (is_array($single_conv->object))
1088                                         $single_conv->object = $single_conv->object[0];
1089
1090                                 logger("Found reshared item ".$single_conv->object->id);
1091
1092                                 // $single_conv->object->context->conversation;
1093
1094                                 if (isset($single_conv->object->object->id))
1095                                         $arr["uri"] = $single_conv->object->object->id;
1096                                 else
1097                                         $arr["uri"] = $single_conv->object->id;
1098
1099                                 if (isset($single_conv->object->object->url))
1100                                         $plink = self::convert_href($single_conv->object->object->url);
1101                                 else
1102                                         $plink = self::convert_href($single_conv->object->url);
1103
1104                                 if (isset($single_conv->object->object->content))
1105                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1106                                 else
1107                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1108
1109                                 $arr["plink"] = $plink;
1110
1111                                 $arr["created"] = $single_conv->object->published;
1112                                 $arr["edited"] = $single_conv->object->published;
1113
1114                                 $arr["author-name"] = $single_conv->object->actor->displayName;
1115                                 if ($arr["owner-name"] == '')
1116                                         $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1117
1118                                 $arr["author-link"] = $single_conv->object->actor->url;
1119                                 $arr["author-avatar"] = $single_conv->object->actor->image->url;
1120
1121                                 $arr["app"] = $single_conv->object->provider->displayName."#";
1122                                 //$arr["verb"] = $single_conv->object->verb;
1123
1124                                 $arr["location"] = $single_conv->object->location->displayName;
1125                                 $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1126                         }
1127
1128                         if ($arr["location"] == "")
1129                                 unset($arr["location"]);
1130
1131                         if ($arr["coord"] == "")
1132                                 unset($arr["coord"]);
1133
1134                         // Copy fields from given item array
1135                         if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1136                                 $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1137                                                         "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1138                                                         "title", "attach", "app", "type", "location", "contact-id", "uri");
1139                                 foreach ($copy_fields AS $field)
1140                                         if (isset($item[$field]))
1141                                                 $arr[$field] = $item[$field];
1142
1143                         }
1144
1145                         $newitem = item_store($arr);
1146                         if (!$newitem) {
1147                                 logger("Item wasn't stored ".print_r($arr, true), LOGGER_DEBUG);
1148                                 continue;
1149                         }
1150
1151                         if (isset($item["uri"]) AND ($item["uri"] == $arr["uri"])) {
1152                                 $item = array();
1153                                 $item_stored = $newitem;
1154                         }
1155
1156                         logger('Stored new item '.$plink.' for parent '.$arr["parent-uri"].' under id '.$newitem, LOGGER_DEBUG);
1157
1158                         // Add the conversation entry (but don't fetch the whole conversation)
1159                         self::store_conversation($newitem, $conversation_url);
1160
1161                         // If the newly created item is the top item then change the parent settings of the thread
1162                         // This shouldn't happen anymore. This is supposed to be absolote.
1163                         if ($arr["uri"] == $first_id) {
1164                                 logger('setting new parent to id '.$newitem);
1165                                 $new_parents = q("SELECT `id`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
1166                                         intval($uid), intval($newitem));
1167                                 if ($new_parents)
1168                                         $parent = $new_parents[0];
1169                         }
1170                 }
1171
1172                 if (($item_stored < 0) AND (count($item) > 0)) {
1173
1174                         if (get_config('system','ostatus_full_threads')) {
1175                                 $details = self::get_actor_details($item["owner-link"], $uid, $item["contact-id"]);
1176                                 if ($details["not_following"]) {
1177                                         logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1178                                         return false;
1179                                 }
1180                         }
1181
1182                         $item_stored = item_store($item, true);
1183                         if ($item_stored) {
1184                                 logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1185                                 self::store_conversation($item_stored, $conversation_url);
1186                         }
1187                 }
1188
1189                 return($item_stored);
1190         }
1191
1192         /**
1193          * @brief Stores conversation data into the database
1194          *
1195          * @param integer $itemid The id of the item
1196          * @param string $conversation_url The uri of the conversation
1197          */
1198         private function store_conversation($itemid, $conversation_url) {
1199
1200                 $conversation_url = self::convert_href($conversation_url);
1201
1202                 $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1203                 if (!$messages)
1204                         return;
1205                 $message = $messages[0];
1206
1207                 // Store conversation url if not done before
1208                 $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1209                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1210
1211                 if (!$conversation) {
1212                         $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1213                                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1214                                 dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1215                         logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1216                 }
1217         }
1218
1219         /**
1220          * @brief Checks if the current post is a reshare
1221          *
1222          * @param array $item The item array of thw post
1223          *
1224          * @return string The guid if the post is a reshare
1225          */
1226         private function get_reshared_guid($item) {
1227                 $body = trim($item["body"]);
1228
1229                 // Skip if it isn't a pure repeated messages
1230                 // Does it start with a share?
1231                 if (strpos($body, "[share") > 0)
1232                         return("");
1233
1234                 // Does it end with a share?
1235                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
1236                         return("");
1237
1238                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1239                 // Skip if there is no shared message in there
1240                 if ($body == $attributes)
1241                         return(false);
1242
1243                 $guid = "";
1244                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1245                 if ($matches[1] != "")
1246                         $guid = $matches[1];
1247
1248                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1249                 if ($matches[1] != "")
1250                         $guid = $matches[1];
1251
1252                 return $guid;
1253         }
1254
1255         /**
1256          * @brief Cleans the body of a post if it contains picture links
1257          *
1258          * @param string $body The body
1259          *
1260          * @return string The cleaned body
1261          */
1262         private function format_picture_post($body) {
1263                 $siteinfo = get_attached_data($body);
1264
1265                 if (($siteinfo["type"] == "photo")) {
1266                         if (isset($siteinfo["preview"]))
1267                                 $preview = $siteinfo["preview"];
1268                         else
1269                                 $preview = $siteinfo["image"];
1270
1271                         // Is it a remote picture? Then make a smaller preview here
1272                         $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
1273
1274                         // Is it a local picture? Then make it smaller here
1275                         $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
1276                         $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
1277
1278                         if (isset($siteinfo["url"]))
1279                                 $url = $siteinfo["url"];
1280                         else
1281                                 $url = $siteinfo["image"];
1282
1283                         $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
1284                 }
1285
1286                 return $body;
1287         }
1288
1289         /**
1290          * @brief Adds the header elements to the XML document
1291          *
1292          * @param object $doc XML document
1293          * @param array $owner Contact data of the poster
1294          *
1295          * @return object header root element
1296          */
1297         private function add_header($doc, $owner) {
1298
1299                 $a = get_app();
1300
1301                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1302                 $doc->appendChild($root);
1303
1304                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1305                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1306                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1307                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1308                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1309                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1310                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1311
1312                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1313                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1314                 xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
1315                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1316                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1317                 xml::add_element($doc, $root, "logo", $owner["photo"]);
1318                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1319
1320                 $author = self::add_author($doc, $owner);
1321                 $root->appendChild($author);
1322
1323                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1324                 xml::add_element($doc, $root, "link", "", $attributes);
1325
1326                 /// @TODO We have to find out what this is
1327                 /// $attributes = array("href" => App::get_baseurl()."/sup",
1328                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1329                 ///             "type" => "application/json");
1330                 /// xml::add_element($doc, $root, "link", "", $attributes);
1331
1332                 self::hublinks($doc, $root);
1333
1334                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1335                 xml::add_element($doc, $root, "link", "", $attributes);
1336
1337                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1338                 xml::add_element($doc, $root, "link", "", $attributes);
1339
1340                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1341                 xml::add_element($doc, $root, "link", "", $attributes);
1342
1343                 $attributes = array("href" => App::get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1344                                 "rel" => "self", "type" => "application/atom+xml");
1345                 xml::add_element($doc, $root, "link", "", $attributes);
1346
1347                 return $root;
1348         }
1349
1350         /**
1351          * @brief Add the link to the push hubs to the XML document
1352          *
1353          * @param object $doc XML document
1354          * @param object $root XML root element where the hub links are added
1355          */
1356         public static function hublinks($doc, $root) {
1357                 $hub = get_config('system','huburl');
1358
1359                 $hubxml = '';
1360                 if(strlen($hub)) {
1361                         $hubs = explode(',', $hub);
1362                         if(count($hubs)) {
1363                                 foreach($hubs as $h) {
1364                                         $h = trim($h);
1365                                         if(! strlen($h))
1366                                                 continue;
1367                                         if ($h === '[internal]')
1368                                                 $h = App::get_baseurl() . '/pubsubhubbub';
1369                                         xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1370                                 }
1371                         }
1372                 }
1373         }
1374
1375         /**
1376          * @brief Adds attachement data to the XML document
1377          *
1378          * @param object $doc XML document
1379          * @param object $root XML root element where the hub links are added
1380          * @param array $item Data of the item that is to be posted
1381          */
1382         private function get_attachment($doc, $root, $item) {
1383                 $o = "";
1384                 $siteinfo = get_attached_data($item["body"]);
1385
1386                 switch($siteinfo["type"]) {
1387                         case 'link':
1388                                 $attributes = array("rel" => "enclosure",
1389                                                 "href" => $siteinfo["url"],
1390                                                 "type" => "text/html; charset=UTF-8",
1391                                                 "length" => "",
1392                                                 "title" => $siteinfo["title"]);
1393                                 xml::add_element($doc, $root, "link", "", $attributes);
1394                                 break;
1395                         case 'photo':
1396                                 $imgdata = get_photo_info($siteinfo["image"]);
1397                                 $attributes = array("rel" => "enclosure",
1398                                                 "href" => $siteinfo["image"],
1399                                                 "type" => $imgdata["mime"],
1400                                                 "length" => intval($imgdata["size"]));
1401                                 xml::add_element($doc, $root, "link", "", $attributes);
1402                                 break;
1403                         case 'video':
1404                                 $attributes = array("rel" => "enclosure",
1405                                                 "href" => $siteinfo["url"],
1406                                                 "type" => "text/html; charset=UTF-8",
1407                                                 "length" => "",
1408                                                 "title" => $siteinfo["title"]);
1409                                 xml::add_element($doc, $root, "link", "", $attributes);
1410                                 break;
1411                         default:
1412                                 break;
1413                 }
1414
1415                 if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1416                         $photodata = get_photo_info($siteinfo["image"]);
1417
1418                         $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1419                         xml::add_element($doc, $root, "link", "", $attributes);
1420                 }
1421
1422
1423                 $arr = explode('[/attach],',$item['attach']);
1424                 if(count($arr)) {
1425                         foreach($arr as $r) {
1426                                 $matches = false;
1427                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1428                                 if($cnt) {
1429                                         $attributes = array("rel" => "enclosure",
1430                                                         "href" => $matches[1],
1431                                                         "type" => $matches[3]);
1432
1433                                         if(intval($matches[2]))
1434                                                 $attributes["length"] = intval($matches[2]);
1435
1436                                         if(trim($matches[4]) != "")
1437                                                 $attributes["title"] = trim($matches[4]);
1438
1439                                         xml::add_element($doc, $root, "link", "", $attributes);
1440                                 }
1441                         }
1442                 }
1443         }
1444
1445         /**
1446          * @brief Adds the author element to the XML document
1447          *
1448          * @param object $doc XML document
1449          * @param array $owner Contact data of the poster
1450          *
1451          * @return object author element
1452          */
1453         private function add_author($doc, $owner) {
1454
1455                 $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1456                 if ($r)
1457                         $profile = $r[0];
1458
1459                 $author = $doc->createElement("author");
1460                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1461                 xml::add_element($doc, $author, "uri", $owner["url"]);
1462                 xml::add_element($doc, $author, "name", $owner["name"]);
1463                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
1464
1465                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1466                 xml::add_element($doc, $author, "link", "", $attributes);
1467
1468                 $attributes = array(
1469                                 "rel" => "avatar",
1470                                 "type" => "image/jpeg", // To-Do?
1471                                 "media:width" => 175,
1472                                 "media:height" => 175,
1473                                 "href" => $owner["photo"]);
1474                 xml::add_element($doc, $author, "link", "", $attributes);
1475
1476                 if (isset($owner["thumb"])) {
1477                         $attributes = array(
1478                                         "rel" => "avatar",
1479                                         "type" => "image/jpeg", // To-Do?
1480                                         "media:width" => 80,
1481                                         "media:height" => 80,
1482                                         "href" => $owner["thumb"]);
1483                         xml::add_element($doc, $author, "link", "", $attributes);
1484                 }
1485
1486                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1487                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1488                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1489
1490                 if (trim($owner["location"]) != "") {
1491                         $element = $doc->createElement("poco:address");
1492                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1493                         $author->appendChild($element);
1494                 }
1495
1496                 if (trim($profile["homepage"]) != "") {
1497                         $urls = $doc->createElement("poco:urls");
1498                         xml::add_element($doc, $urls, "poco:type", "homepage");
1499                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1500                         xml::add_element($doc, $urls, "poco:primary", "true");
1501                         $author->appendChild($urls);
1502                 }
1503
1504                 if (count($profile)) {
1505                         xml::add_element($doc, $author, "followers", "", array("url" => App::get_baseurl()."/viewcontacts/".$owner["nick"]));
1506                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1507                 }
1508
1509                 return $author;
1510         }
1511
1512         /**
1513          * @TODO Picture attachments should look like this:
1514          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1515          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1516          *
1517         */
1518
1519         /**
1520          * @brief Returns the given activity if present - otherwise returns the "post" activity
1521          *
1522          * @param array $item Data of the item that is to be posted
1523          *
1524          * @return string activity
1525          */
1526         function construct_verb($item) {
1527                 if ($item['verb'])
1528                         return $item['verb'];
1529                 return ACTIVITY_POST;
1530         }
1531
1532         /**
1533          * @brief Returns the given object type if present - otherwise returns the "note" object type
1534          *
1535          * @param array $item Data of the item that is to be posted
1536          *
1537          * @return string Object type
1538          */
1539         function construct_objecttype($item) {
1540                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1541                         return $item['object-type'];
1542                 return ACTIVITY_OBJ_NOTE;
1543         }
1544
1545         /**
1546          * @brief Adds an entry element to the XML document
1547          *
1548          * @param object $doc XML document
1549          * @param array $item Data of the item that is to be posted
1550          * @param array $owner Contact data of the poster
1551          * @param bool $toplevel
1552          *
1553          * @return object Entry element
1554          */
1555         private function entry($doc, $item, $owner, $toplevel = false) {
1556                 $repeated_guid = self::get_reshared_guid($item);
1557                 if ($repeated_guid != "")
1558                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1559
1560                 if ($xml)
1561                         return $xml;
1562
1563                 if ($item["verb"] == ACTIVITY_LIKE)
1564                         return self::like_entry($doc, $item, $owner, $toplevel);
1565                 else
1566                         return self::note_entry($doc, $item, $owner, $toplevel);
1567         }
1568
1569         /**
1570          * @brief Adds a source entry to the XML document
1571          *
1572          * @param object $doc XML document
1573          * @param array $contact Array of the contact that is added
1574          *
1575          * @return object Source element
1576          */
1577         private function source_entry($doc, $contact) {
1578                 $source = $doc->createElement("source");
1579                 xml::add_element($doc, $source, "id", $contact["poll"]);
1580                 xml::add_element($doc, $source, "title", $contact["name"]);
1581                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1582                                                                 "type" => "text/html",
1583                                                                 "href" => $contact["alias"]));
1584                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1585                                                                 "type" => "application/atom+xml",
1586                                                                 "href" => $contact["poll"]));
1587                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1588                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1589
1590                 return $source;
1591         }
1592
1593         /**
1594          * @brief Fetches contact data from the contact or the gcontact table
1595          *
1596          * @param string $url URL of the contact
1597          * @param array $owner Contact data of the poster
1598          *
1599          * @return array Contact array
1600          */
1601         private function contact_entry($url, $owner) {
1602
1603                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1604                         dbesc(normalise_link($url)), intval($owner["uid"]));
1605                 if ($r) {
1606                         $contact = $r[0];
1607                         $contact["uid"] = -1;
1608                 }
1609
1610                 if (!$r) {
1611                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1612                                 dbesc(normalise_link($url)));
1613                         if ($r) {
1614                                 $contact = $r[0];
1615                                 $contact["uid"] = -1;
1616                                 $contact["success_update"] = $contact["updated"];
1617                         }
1618                 }
1619
1620                 if (!$r)
1621                         $contact = owner;
1622
1623                 if (!isset($contact["poll"])) {
1624                         $data = probe_url($url);
1625                         $contact["poll"] = $data["poll"];
1626
1627                         if (!$contact["alias"])
1628                                 $contact["alias"] = $data["alias"];
1629                 }
1630
1631                 if (!isset($contact["alias"]))
1632                         $contact["alias"] = $contact["url"];
1633
1634                 return $contact;
1635         }
1636
1637         /**
1638          * @brief Adds an entry element with reshared content
1639          *
1640          * @param object $doc XML document
1641          * @param array $item Data of the item that is to be posted
1642          * @param array $owner Contact data of the poster
1643          * @param $repeated_guid
1644          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1645          *
1646          * @return object Entry element
1647          */
1648         private function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1649
1650                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1651                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1652                 }
1653
1654                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1655
1656                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1657                         intval($owner["uid"]), dbesc($repeated_guid),
1658                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1659                 if ($r)
1660                         $repeated_item = $r[0];
1661                 else
1662                         return false;
1663
1664                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1665
1666                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1667
1668                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1669
1670                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1671
1672                 $as_object = $doc->createElement("activity:object");
1673
1674                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1675
1676                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1677
1678                 $author = self::add_author($doc, $contact);
1679                 $as_object->appendChild($author);
1680
1681                 $as_object2 = $doc->createElement("activity:object");
1682
1683                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1684
1685                 $title = sprintf("New comment by %s", $contact["nick"]);
1686
1687                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1688
1689                 $as_object->appendChild($as_object2);
1690
1691                 self::entry_footer($doc, $as_object, $item, $owner, false);
1692
1693                 $source = self::source_entry($doc, $contact);
1694
1695                 $as_object->appendChild($source);
1696
1697                 $entry->appendChild($as_object);
1698
1699                 self::entry_footer($doc, $entry, $item, $owner);
1700
1701                 return $entry;
1702         }
1703
1704         /**
1705          * @brief Adds an entry element with a "like"
1706          *
1707          * @param object $doc XML document
1708          * @param array $item Data of the item that is to be posted
1709          * @param array $owner Contact data of the poster
1710          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1711          *
1712          * @return object Entry element with "like"
1713          */
1714         private function like_entry($doc, $item, $owner, $toplevel) {
1715
1716                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1717                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1718                 }
1719
1720                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1721
1722                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1723                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1724
1725                 $as_object = $doc->createElement("activity:object");
1726
1727                 $parent = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
1728                         dbesc($item["thr-parent"]), intval($item["uid"]));
1729                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1730
1731                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1732
1733                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1734
1735                 $entry->appendChild($as_object);
1736
1737                 self::entry_footer($doc, $entry, $item, $owner);
1738
1739                 return $entry;
1740         }
1741
1742         /**
1743          * @brief Adds a regular entry element
1744          *
1745          * @param object $doc XML document
1746          * @param array $item Data of the item that is to be posted
1747          * @param array $owner Contact data of the poster
1748          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1749          *
1750          * @return object Entry element
1751          */
1752         private function note_entry($doc, $item, $owner, $toplevel) {
1753
1754                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1755                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1756                 }
1757
1758                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1759
1760                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1761
1762                 self::entry_content($doc, $entry, $item, $owner, $title);
1763
1764                 self::entry_footer($doc, $entry, $item, $owner);
1765
1766                 return $entry;
1767         }
1768
1769         /**
1770          * @brief Adds a header element to the XML document
1771          *
1772          * @param object $doc XML document
1773          * @param object $entry The entry element where the elements are added
1774          * @param array $owner Contact data of the poster
1775          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1776          *
1777          * @return string The title for the element
1778          */
1779         private function entry_header($doc, &$entry, $owner, $toplevel) {
1780                 /// @todo Check if this title stuff is really needed (I guess not)
1781                 if (!$toplevel) {
1782                         $entry = $doc->createElement("entry");
1783                         $title = sprintf("New note by %s", $owner["nick"]);
1784                 } else {
1785                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1786
1787                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1788                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1789                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1790                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1791                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1792                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1793                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1794
1795                         $author = self::add_author($doc, $owner);
1796                         $entry->appendChild($author);
1797
1798                         $title = sprintf("New comment by %s", $owner["nick"]);
1799                 }
1800                 return $title;
1801         }
1802
1803         /**
1804          * @brief Adds elements to the XML document
1805          *
1806          * @param object $doc XML document
1807          * @param object $entry Entry element where the content is added
1808          * @param array $item Data of the item that is to be posted
1809          * @param array $owner Contact data of the poster
1810          * @param string $title Title for the post
1811          * @param string $verb The activity verb
1812          * @param bool $complete Add the "status_net" element?
1813          */
1814         private function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
1815
1816                 if ($verb == "")
1817                         $verb = self::construct_verb($item);
1818
1819                 xml::add_element($doc, $entry, "id", $item["uri"]);
1820                 xml::add_element($doc, $entry, "title", $title);
1821
1822                 $body = self::format_picture_post($item['body']);
1823
1824                 if ($item['title'] != "")
1825                         $body = "[b]".$item['title']."[/b]\n\n".$body;
1826
1827                 $body = bbcode($body, false, false, 7);
1828
1829                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
1830
1831                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1832                                                                 "href" => App::get_baseurl()."/display/".$item["guid"]));
1833
1834                 if ($complete)
1835                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1836
1837                 xml::add_element($doc, $entry, "activity:verb", $verb);
1838
1839                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1840                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1841         }
1842
1843         /**
1844          * @brief Adds the elements at the foot of an entry to the XML document
1845          *
1846          * @param object $doc XML document
1847          * @param object $entry The entry element where the elements are added
1848          * @param array $item Data of the item that is to be posted
1849          * @param array $owner Contact data of the poster
1850          * @param $complete
1851          */
1852         private function entry_footer($doc, $entry, $item, $owner, $complete = true) {
1853
1854                 $mentioned = array();
1855
1856                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1857                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1858                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1859
1860                         $attributes = array(
1861                                         "ref" => $parent_item,
1862                                         "type" => "text/html",
1863                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1864                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1865
1866                         $attributes = array(
1867                                         "rel" => "related",
1868                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1869                         xml::add_element($doc, $entry, "link", "", $attributes);
1870
1871                         $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1872                         $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1873
1874                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
1875                                         intval($owner["uid"]),
1876                                         dbesc($parent_item));
1877                         if ($thrparent) {
1878                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
1879                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
1880                         }
1881                 }
1882
1883                 xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation",
1884                                                         "href" => App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]));
1885                 xml::add_element($doc, $entry, "ostatus:conversation", App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"]);
1886
1887                 $tags = item_getfeedtags($item);
1888
1889                 if(count($tags))
1890                         foreach($tags as $t)
1891                                 if ($t[0] == "@")
1892                                         $mentioned[$t[1]] = $t[1];
1893
1894                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
1895                 $newmentions = array();
1896                 foreach ($mentioned AS $mention) {
1897                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
1898                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
1899                 }
1900                 $mentioned = $newmentions;
1901
1902                 foreach ($mentioned AS $mention) {
1903                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1904                                 intval($owner["uid"]),
1905                                 dbesc(normalise_link($mention)));
1906                         if ($r[0]["forum"] OR $r[0]["prv"])
1907                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1908                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
1909                                                                                         "href" => $mention));
1910                         else
1911                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1912                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
1913                                                                                         "href" => $mention));
1914                 }
1915
1916                 if (!$item["private"]) {
1917                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
1918                                                                         "href" => "http://activityschema.org/collection/public"));
1919                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
1920                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
1921                                                                         "href" => "http://activityschema.org/collection/public"));
1922                 }
1923
1924                 if(count($tags))
1925                         foreach($tags as $t)
1926                                 if ($t[0] != "@")
1927                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
1928
1929                 self::get_attachment($doc, $entry, $item);
1930
1931                 if ($complete) {
1932                         $app = $item["app"];
1933                         if ($app == "")
1934                                 $app = "web";
1935
1936                         $attributes = array("local_id" => $item["id"], "source" => $app);
1937
1938                         if (isset($parent["id"]))
1939                                 $attributes["repeat_of"] = $parent["id"];
1940
1941                         if ($item["coord"] != "")
1942                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
1943
1944                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
1945                 }
1946         }
1947
1948         /**
1949          * @brief Creates the XML feed for a given nickname
1950          *
1951          * @param app $a The application class
1952          * @param string $owner_nick Nickname of the feed owner
1953          * @param string $last_update Date of the last update
1954          *
1955          * @return string XML feed
1956          */
1957         public static function feed(&$a, $owner_nick, $last_update) {
1958
1959                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
1960                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
1961                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
1962                                 dbesc($owner_nick));
1963                 if (!$r)
1964                         return;
1965
1966                 $owner = $r[0];
1967
1968                 if(!strlen($last_update))
1969                         $last_update = 'now -30 days';
1970
1971                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
1972                 $authorid = get_contact($owner["url"], 0);
1973
1974                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
1975                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1976                                 WHERE `item`.`uid` = %d AND `item`.`contact-id` = %d AND
1977                                         `item`.`author-id` = %d AND `item`.`created` > '%s' AND
1978                                         NOT `item`.`deleted` AND NOT `item`.`private` AND
1979                                         `thread`.`network` IN ('%s', '%s')
1980                                 ORDER BY `item`.`created` DESC LIMIT 300",
1981                                 intval($owner["uid"]), intval($owner["id"]),
1982                                 intval($authorid), dbesc($check_date),
1983                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
1984 /*
1985                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item`
1986                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
1987                                 LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
1988                                 WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
1989                                         AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
1990                                         AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
1991                                                 OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
1992                                         AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
1993                                                 OR (`item`.`author-link` IN ('%s', '%s')))
1994                                 ORDER BY `item`.`id` DESC
1995                                 LIMIT 0, 300",
1996                                 intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
1997                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1998                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
1999                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
2000                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
2001                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
2002                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
2003                         );
2004 */
2005                 $doc = new DOMDocument('1.0', 'utf-8');
2006                 $doc->formatOutput = true;
2007
2008                 $root = self::add_header($doc, $owner);
2009
2010                 foreach ($items AS $item) {
2011                         $entry = self::entry($doc, $item, $owner);
2012                         $root->appendChild($entry);
2013                 }
2014
2015                 return(trim($doc->saveXML()));
2016         }
2017
2018         /**
2019          * @brief Creates the XML for a salmon message
2020          *
2021          * @param array $item Data of the item that is to be posted
2022          * @param array $owner Contact data of the poster
2023          *
2024          * @return string XML for the salmon
2025          */
2026         public static function salmon($item,$owner) {
2027
2028                 $doc = new DOMDocument('1.0', 'utf-8');
2029                 $doc->formatOutput = true;
2030
2031                 $entry = self::entry($doc, $item, $owner, true);
2032
2033                 $doc->appendChild($entry);
2034
2035                 return(trim($doc->saveXML()));
2036         }
2037 }
2038 ?>