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