include/ostatus.php

   1 <?php
   2 /**
   3  * @file include/ostatus.php
   4  */
   5
   6 require_once("include/Contact.php");
   7 require_once("include/threads.php");
   8 require_once("include/html2bbcode.php");
   9 require_once("include/bbcode.php");
  10 require_once("include/items.php");
  11 require_once("mod/share.php");
  12 require_once("include/enotify.php");
  13 require_once("include/socgraph.php");
  14 require_once("include/Photo.php");
  15 require_once("include/Scrape.php");
  16 require_once("include/follow.php");
  17 require_once("include/api.php");
  18 require_once("mod/proxy.php");
  19 require_once("include/xml.php");
  20
  21 /**
  22  * @brief This class contain functions for the OStatus protocol
  23  *
  24  */
  25 class ostatus {
  26         const OSTATUS_DEFAULT_POLL_INTERVAL = 30; // given in minutes
  27         const OSTATUS_DEFAULT_POLL_TIMEFRAME = 1440; // given in minutes
  28         const OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS = 14400; // given in minutes
  29
  30         /**
  31          * @brief Fetches author data
  32          *
  33          * @param object $xpath The xpath object
  34          * @param object $context The xml context of the author detals
  35          * @param array $importer user record of the importing user
  36          * @param array $contact Called by reference, will contain the fetched contact
  37          * @param bool $onlyfetch Only fetch the header without updating the contact entries
  38          *
  39          * @return array Array of author related entries for the item
  40          */
  41         private function fetchauthor($xpath, $context, $importer, &$contact, $onlyfetch) {
  42
  43                 $author = array();
  44                 $author["author-link"] = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
  45                 $author["author-name"] = $xpath->evaluate('atom:author/atom:name/text()', $context)->item(0)->nodeValue;
  46
  47                 $aliaslink = $author["author-link"];
  48
  49                 $alternate = $xpath->query("atom:author/atom:link[@rel='alternate']", $context)->item(0)->attributes;
  50                 if (is_object($alternate))
  51                         foreach($alternate AS $attributes)
  52                                 if ($attributes->name == "href")
  53                                         $author["author-link"] = $attributes->textContent;
  54
  55                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` IN ('%s', '%s') AND `network` != '%s'",
  56                         intval($importer["uid"]), dbesc(normalise_link($author["author-link"])),
  57                         dbesc(normalise_link($aliaslink)), dbesc(NETWORK_STATUSNET));
  58                 if ($r) {
  59                         $contact = $r[0];
  60                         $author["contact-id"] = $r[0]["id"];
  61                 } else
  62                         $author["contact-id"] = $contact["id"];
  63
  64                 $avatarlist = array();
  65                 $avatars = $xpath->query("atom:author/atom:link[@rel='avatar']", $context);
  66                 foreach($avatars AS $avatar) {
  67                         $href = "";
  68                         $width = 0;
  69                         foreach($avatar->attributes AS $attributes) {
  70                                 if ($attributes->name == "href")
  71                                         $href = $attributes->textContent;
  72                                 if ($attributes->name == "width")
  73                                         $width = $attributes->textContent;
  74                         }
  75                         if (($width > 0) AND ($href != ""))
  76                                 $avatarlist[$width] = $href;
  77                 }
  78                 if (count($avatarlist) > 0) {
  79                         krsort($avatarlist);
  80                         $author["author-avatar"] = current($avatarlist);
  81                 }
  82
  83                 $displayname = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
  84                 if ($displayname != "")
  85                         $author["author-name"] = $displayname;
  86
  87                 $author["owner-name"] = $author["author-name"];
  88                 $author["owner-link"] = $author["author-link"];
  89                 $author["owner-avatar"] = $author["author-avatar"];
  90
  91                 // Only update the contacts if it is an OStatus contact
  92                 if ($r AND !$onlyfetch AND ($contact["network"] == NETWORK_OSTATUS)) {
  93
  94                         // Update contact data
  95
  96                         // This query doesn't seem to work
  97                         // $value = $xpath->query("atom:link[@rel='salmon']", $context)->item(0)->nodeValue;
  98                         // if ($value != "")
  99                         //      $contact["notify"] = $value;
 100
 101                         // This query doesn't seem to work as well - I hate these queries
 102                         // $value = $xpath->query("atom:link[@rel='self' and @type='application/atom+xml']", $context)->item(0)->nodeValue;
 103                         // if ($value != "")
 104                         //      $contact["poll"] = $value;
 105
 106                         $value = $xpath->evaluate('atom:author/atom:uri/text()', $context)->item(0)->nodeValue;
 107                         if ($value != "")
 108                                 $contact["alias"] = $value;
 109
 110                         $value = $xpath->evaluate('atom:author/poco:displayName/text()', $context)->item(0)->nodeValue;
 111                         if ($value != "")
 112                                 $contact["name"] = $value;
 113
 114                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 115                         if ($value != "")
 116                                 $contact["nick"] = $value;
 117
 118                         $value = $xpath->evaluate('atom:author/poco:note/text()', $context)->item(0)->nodeValue;
 119                         if ($value != "")
 120                                 $contact["about"] = html2bbcode($value);
 121
 122                         $value = $xpath->evaluate('atom:author/poco:address/poco:formatted/text()', $context)->item(0)->nodeValue;
 123                         if ($value != "")
 124                                 $contact["location"] = $value;
 125
 126                         if (($contact["name"] != $r[0]["name"]) OR ($contact["nick"] != $r[0]["nick"]) OR ($contact["about"] != $r[0]["about"]) OR
 127                                 ($contact["alias"] != $r[0]["alias"]) OR ($contact["location"] != $r[0]["location"])) {
 128
 129                                 logger("Update contact data for contact ".$contact["id"], LOGGER_DEBUG);
 130
 131                                 q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `alias` = '%s', `about` = '%s', `location` = '%s', `name-date` = '%s' WHERE `id` = %d",
 132                                         dbesc($contact["name"]), dbesc($contact["nick"]), dbesc($contact["alias"]),
 133                                         dbesc($contact["about"]), dbesc($contact["location"]),
 134                                         dbesc(datetime_convert()), intval($contact["id"]));
 135
 136                                 poco_check($contact["url"], $contact["name"], $contact["network"], $author["author-avatar"], $contact["about"], $contact["location"],
 137                                                         "", "", "", datetime_convert(), 2, $contact["id"], $contact["uid"]);
 138                         }
 139
 140                         if (isset($author["author-avatar"]) AND ($author["author-avatar"] != $r[0]['avatar'])) {
 141                                 logger("Update profile picture for contact ".$contact["id"], LOGGER_DEBUG);
 142
 143                                 update_contact_avatar($author["author-avatar"], $importer["uid"], $contact["id"]);
 144                         }
 145
 146                         // Ensure that we are having this contact (with uid=0)
 147                         $cid = get_contact($author["author-link"], 0);
 148
 149                         if ($cid) {
 150                                 // Update it with the current values
 151                                 q("UPDATE `contact` SET `url` = '%s', `name` = '%s', `nick` = '%s', `alias` = '%s',
 152                                                 `about` = '%s', `location` = '%s',
 153                                                 `success_update` = '%s', `last-update` = '%s'
 154                                         WHERE `id` = %d",
 155                                         dbesc($author["author-link"]), dbesc($contact["name"]), dbesc($contact["nick"]),
 156                                         dbesc($contact["alias"]), dbesc($contact["about"]), dbesc($contact["location"]),
 157                                         dbesc(datetime_convert()), dbesc(datetime_convert()), intval($cid));
 158
 159                                 // Update the avatar
 160                                 update_contact_avatar($author["author-avatar"], 0, $cid);
 161                         }
 162
 163                         $contact["generation"] = 2;
 164                         $contact["hide"] = false; // OStatus contacts are never hidden
 165                         $contact["photo"] = $author["author-avatar"];
 166                         update_gcontact($contact);
 167                 }
 168
 169                 return($author);
 170         }
 171
 172         /**
 173          * @brief Fetches author data from a given XML string
 174          *
 175          * @param string $xml The XML
 176          * @param array $importer user record of the importing user
 177          *
 178          * @return array Array of author related entries for the item
 179          */
 180         public static function salmon_author($xml, $importer) {
 181
 182                 if ($xml == "")
 183                         return;
 184
 185                 $doc = new DOMDocument();
 186                 @$doc->loadXML($xml);
 187
 188                 $xpath = new DomXPath($doc);
 189                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 190                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 191                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 192                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 193                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 194                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 195                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 196                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 197
 198                 $entries = $xpath->query('/atom:entry');
 199
 200                 foreach ($entries AS $entry) {
 201                         // fetch the author
 202                         $author = self::fetchauthor($xpath, $entry, $importer, $contact, true);
 203                         return $author;
 204                 }
 205         }
 206
 207         /**
 208          * @brief Imports an XML string containing OStatus elements
 209          *
 210          * @param string $xml The XML
 211          * @param array $importer user record of the importing user
 212          * @param $contact
 213          * @param array $hub Called by reference, returns the fetched hub data
 214          */
 215         public static function import($xml,$importer,&$contact, &$hub) {
 216                 /// @todo this function is too long. It has to be split in many parts
 217
 218                 logger("Import OStatus message", LOGGER_DEBUG);
 219
 220                 if ($xml == "")
 221                         return;
 222
 223                 //$tempfile = tempnam(get_temppath(), "import");
 224                 //file_put_contents($tempfile, $xml);
 225
 226                 $doc = new DOMDocument();
 227                 @$doc->loadXML($xml);
 228
 229                 $xpath = new DomXPath($doc);
 230                 $xpath->registerNamespace('atom', NAMESPACE_ATOM1);
 231                 $xpath->registerNamespace('thr', NAMESPACE_THREAD);
 232                 $xpath->registerNamespace('georss', NAMESPACE_GEORSS);
 233                 $xpath->registerNamespace('activity', NAMESPACE_ACTIVITY);
 234                 $xpath->registerNamespace('media', NAMESPACE_MEDIA);
 235                 $xpath->registerNamespace('poco', NAMESPACE_POCO);
 236                 $xpath->registerNamespace('ostatus', NAMESPACE_OSTATUS);
 237                 $xpath->registerNamespace('statusnet', NAMESPACE_STATUSNET);
 238
 239                 $gub = "";
 240                 $hub_attributes = $xpath->query("/atom:feed/atom:link[@rel='hub']")->item(0)->attributes;
 241                 if (is_object($hub_attributes))
 242                         foreach($hub_attributes AS $hub_attribute)
 243                                 if ($hub_attribute->name == "href") {
 244                                         $hub = $hub_attribute->textContent;
 245                                         logger("Found hub ".$hub, LOGGER_DEBUG);
 246                                 }
 247
 248                 $header = array();
 249                 $header["uid"] = $importer["uid"];
 250                 $header["network"] = NETWORK_OSTATUS;
 251                 $header["type"] = "remote";
 252                 $header["wall"] = 0;
 253                 $header["origin"] = 0;
 254                 $header["gravity"] = GRAVITY_PARENT;
 255
 256                 // it could either be a received post or a post we fetched by ourselves
 257                 // depending on that, the first node is different
 258                 $first_child = $doc->firstChild->tagName;
 259
 260                 if ($first_child == "feed")
 261                         $entries = $xpath->query('/atom:feed/atom:entry');
 262                 else
 263                         $entries = $xpath->query('/atom:entry');
 264
 265                 $conversation = "";
 266                 $conversationlist = array();
 267                 $item_id = 0;
 268
 269                 // Reverse the order of the entries
 270                 $entrylist = array();
 271
 272                 foreach ($entries AS $entry)
 273                         $entrylist[] = $entry;
 274
 275                 foreach (array_reverse($entrylist) AS $entry) {
 276
 277                         $mention = false;
 278
 279                         // fetch the author
 280                         if ($first_child == "feed")
 281                                 $author = self::fetchauthor($xpath, $doc->firstChild, $importer, $contact, false);
 282                         else
 283                                 $author = self::fetchauthor($xpath, $entry, $importer, $contact, false);
 284
 285                         $value = $xpath->evaluate('atom:author/poco:preferredUsername/text()', $context)->item(0)->nodeValue;
 286                         if ($value != "")
 287                                 $nickname = $value;
 288                         else
 289                                 $nickname = $author["author-name"];
 290
 291                         $item = array_merge($header, $author);
 292
 293                         // Now get the item
 294                         $item["uri"] = $xpath->query('atom:id/text()', $entry)->item(0)->nodeValue;
 295
 296                         $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 297                                 intval($importer["uid"]), dbesc($item["uri"]));
 298                         if ($r) {
 299                                 logger("Item with uri ".$item["uri"]." for user ".$importer["uid"]." already existed under id ".$r[0]["id"], LOGGER_DEBUG);
 300                                 continue;
 301                         }
 302
 303                         $item["body"] = add_page_info_to_body(html2bbcode($xpath->query('atom:content/text()', $entry)->item(0)->nodeValue));
 304                         $item["object-type"] = $xpath->query('activity:object-type/text()', $entry)->item(0)->nodeValue;
 305
 306                         if (($item["object-type"] == ACTIVITY_OBJ_BOOKMARK) OR ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 307                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 308                                 $item["body"] = $xpath->query('atom:summary/text()', $entry)->item(0)->nodeValue;
 309                         } elseif ($item["object-type"] == ACTIVITY_OBJ_QUESTION)
 310                                 $item["title"] = $xpath->query('atom:title/text()', $entry)->item(0)->nodeValue;
 311
 312                         $item["object"] = $xml;
 313                         $item["verb"] = $xpath->query('activity:verb/text()', $entry)->item(0)->nodeValue;
 314
 315                         /// @TODO
 316                         /// Delete a message
 317                         if ($item["verb"] == "qvitter-delete-notice") {
 318                                 // ignore "Delete" messages (by now)
 319                                 logger("Ignore delete message ".print_r($item, true));
 320                                 continue;
 321                         }
 322
 323                         if ($item["verb"] == ACTIVITY_JOIN) {
 324                                 // ignore "Join" messages
 325                                 logger("Ignore join message ".print_r($item, true));
 326                                 continue;
 327                         }
 328
 329                         if ($item["verb"] == ACTIVITY_FOLLOW) {
 330                                 new_follower($importer, $contact, $item, $nickname);
 331                                 continue;
 332                         }
 333
 334                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfollow") {
 335                                 lose_follower($importer, $contact, $item, $dummy);
 336                                 continue;
 337                         }
 338
 339                         if ($item["verb"] == ACTIVITY_FAVORITE) {
 340                                 $orig_uri = $xpath->query("activity:object/atom:id", $entry)->item(0)->nodeValue;
 341                                 logger("Favorite ".$orig_uri." ".print_r($item, true));
 342
 343                                 $item["verb"] = ACTIVITY_LIKE;
 344                                 $item["parent-uri"] = $orig_uri;
 345                                 $item["gravity"] = GRAVITY_LIKE;
 346                         }
 347
 348                         if ($item["verb"] == NAMESPACE_OSTATUS."/unfavorite") {
 349                                 // Ignore "Unfavorite" message
 350                                 logger("Ignore unfavorite message ".print_r($item, true));
 351                                 continue;
 352                         }
 353
 354                         // http://activitystrea.ms/schema/1.0/rsvp-yes
 355                         if (!in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_LIKE, ACTIVITY_SHARE)))
 356                                 logger("Unhandled verb ".$item["verb"]." ".print_r($item, true));
 357
 358                         $item["created"] = $xpath->query('atom:published/text()', $entry)->item(0)->nodeValue;
 359                         $item["edited"] = $xpath->query('atom:updated/text()', $entry)->item(0)->nodeValue;
 360                         $conversation = $xpath->query('ostatus:conversation/text()', $entry)->item(0)->nodeValue;
 361
 362                         $related = "";
 363
 364                         $inreplyto = $xpath->query('thr:in-reply-to', $entry);
 365                         if (is_object($inreplyto->item(0))) {
 366                                 foreach($inreplyto->item(0)->attributes AS $attributes) {
 367                                         if ($attributes->name == "ref")
 368                                                 $item["parent-uri"] = $attributes->textContent;
 369                                         if ($attributes->name == "href")
 370                                                 $related = $attributes->textContent;
 371                                 }
 372                         }
 373
 374                         $georsspoint = $xpath->query('georss:point', $entry);
 375                         if ($georsspoint)
 376                                 $item["coord"] = $georsspoint->item(0)->nodeValue;
 377
 378                         $categories = $xpath->query('atom:category', $entry);
 379                         if ($categories) {
 380                                 foreach ($categories AS $category) {
 381                                         foreach($category->attributes AS $attributes)
 382                                                 if ($attributes->name == "term") {
 383                                                         $term = $attributes->textContent;
 384                                                         if(strlen($item["tag"]))
 385                                                                 $item["tag"] .= ',';
 386                                                         $item["tag"] .= "#[url=".App::get_baseurl()."/search?tag=".$term."]".$term."[/url]";
 387                                                 }
 388                                 }
 389                         }
 390
 391                         $self = "";
 392                         $enclosure = "";
 393
 394                         $links = $xpath->query('atom:link', $entry);
 395                         if ($links) {
 396                                 $rel = "";
 397                                 $href = "";
 398                                 $type = "";
 399                                 $length = "0";
 400                                 $title = "";
 401                                 foreach ($links AS $link) {
 402                                         foreach($link->attributes AS $attributes) {
 403                                                 if ($attributes->name == "href")
 404                                                         $href = $attributes->textContent;
 405                                                 if ($attributes->name == "rel")
 406                                                         $rel = $attributes->textContent;
 407                                                 if ($attributes->name == "type")
 408                                                         $type = $attributes->textContent;
 409                                                 if ($attributes->name == "length")
 410                                                         $length = $attributes->textContent;
 411                                                 if ($attributes->name == "title")
 412                                                         $title = $attributes->textContent;
 413                                         }
 414                                         if (($rel != "") AND ($href != "")) {
 415                                                 switch ($rel) {
 416                                                         case "alternate":
 417                                                                 $item["plink"] = $href;
 418                                                                 /// @TODO These multi-lines can confuse, let's avoid them
 419                                                                 if (($item["object-type"] == ACTIVITY_OBJ_QUESTION) OR
 420                                                                         ($item["object-type"] == ACTIVITY_OBJ_EVENT)) {
 421                                                                         $item["body"] .= add_page_info($href);
 422                                                                 }
 423                                                                 break;
 424                                                         case "ostatus:conversation":
 425                                                                 $conversation = $href;
 426                                                                 break;
 427                                                         case "enclosure":
 428                                                                 $enclosure = $href;
 429                                                                 if (strlen($item["attach"])) {
 430                                                                         $item["attach"] .= ',';
 431                                                                 }
 432
 433                                                                 $item["attach"] .= '[attach]href="' . $href . '" length="' . $length . '" type="' . $type . '" title="' . $title . '"[/attach]';
 434                                                                 break;
 435                                                         case "related":
 436                                                                 if ($item["object-type"] != ACTIVITY_OBJ_BOOKMARK) {
 437                                                                         if (!isset($item["parent-uri"])) {
 438                                                                                 $item["parent-uri"] = $href;
 439                                                                         }
 440
 441                                                                         if ($related == "") {
 442                                                                                 $related = $href;
 443                                                                         }
 444                                                                 } else {
 445                                                                         $item["body"] .= add_page_info($href);
 446                                                                 }
 447                                                                 break;
 448                                                         case "self":
 449                                                                 $self = $href;
 450                                                                 break;
 451                                                         case "mentioned":
 452                                                                 // Notification check
 453                                                                 if ($importer["nurl"] == normalise_link($href)) {
 454                                                                         $mention = true;
 455                                                                 }
 456                                                                 break;
 457                                                 }
 458                                         }
 459                                 }
 460                         }
 461
 462                         $local_id = "";
 463                         $repeat_of = "";
 464
 465                         $notice_info = $xpath->query('statusnet:notice_info', $entry);
 466                         if ($notice_info AND ($notice_info->length > 0)) {
 467                                 foreach($notice_info->item(0)->attributes AS $attributes) {
 468                                         if ($attributes->name == "source")
 469                                                 $item["app"] = strip_tags($attributes->textContent);
 470                                         if ($attributes->name == "local_id")
 471                                                 $local_id = $attributes->textContent;
 472                                         if ($attributes->name == "repeat_of")
 473                                                 $repeat_of = $attributes->textContent;
 474                                 }
 475                         }
 476
 477                         // Is it a repeated post?
 478                         if (($repeat_of != "") OR ($item["verb"] == ACTIVITY_SHARE)) {
 479                                 $activityobjects = $xpath->query('activity:object', $entry)->item(0);
 480
 481                                 if (is_object($activityobjects)) {
 482
 483                                         $orig_uri = $xpath->query("activity:object/atom:id", $activityobjects)->item(0)->nodeValue;
 484                                         if (!isset($orig_uri))
 485                                                 $orig_uri = $xpath->query('atom:id/text()', $activityobjects)->item(0)->nodeValue;
 486
 487                                         $orig_links = $xpath->query("activity:object/atom:link[@rel='alternate']", $activityobjects);
 488                                         if ($orig_links AND ($orig_links->length > 0))
 489                                                 foreach($orig_links->item(0)->attributes AS $attributes)
 490                                                         if ($attributes->name == "href")
 491                                                                 $orig_link = $attributes->textContent;
 492
 493                                         if (!isset($orig_link))
 494                                                 $orig_link = $xpath->query("atom:link[@rel='alternate']", $activityobjects)->item(0)->nodeValue;
 495
 496                                         if (!isset($orig_link))
 497                                                 $orig_link =  self::convert_href($orig_uri);
 498
 499                                         $orig_body = $xpath->query('activity:object/atom:content/text()', $activityobjects)->item(0)->nodeValue;
 500                                         if (!isset($orig_body))
 501                                                 $orig_body = $xpath->query('atom:content/text()', $activityobjects)->item(0)->nodeValue;
 502
 503                                         $orig_created = $xpath->query('atom:published/text()', $activityobjects)->item(0)->nodeValue;
 504                                         $orig_edited = $xpath->query('atom:updated/text()', $activityobjects)->item(0)->nodeValue;
 505
 506                                         $orig_contact = $contact;
 507                                         $orig_author = self::fetchauthor($xpath, $activityobjects, $importer, $orig_contact, false);
 508
 509                                         $item["author-name"] = $orig_author["author-name"];
 510                                         $item["author-link"] = $orig_author["author-link"];
 511                                         $item["author-avatar"] = $orig_author["author-avatar"];
 512                                         $item["body"] = add_page_info_to_body(html2bbcode($orig_body));
 513                                         $item["created"] = $orig_created;
 514                                         $item["edited"] = $orig_edited;
 515
 516                                         $item["uri"] = $orig_uri;
 517                                         $item["plink"] = $orig_link;
 518
 519                                         $item["verb"] = $xpath->query('activity:verb/text()', $activityobjects)->item(0)->nodeValue;
 520
 521                                         $item["object-type"] = $xpath->query('activity:object/activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 522                                         if (!isset($item["object-type"]))
 523                                                 $item["object-type"] = $xpath->query('activity:object-type/text()', $activityobjects)->item(0)->nodeValue;
 524                                 }
 525                         }
 526
 527                         //if ($enclosure != "")
 528                         //      $item["body"] .= add_page_info($enclosure);
 529
 530                         if (isset($item["parent-uri"])) {
 531                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 532                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 533
 534                                 // Only fetch missing stuff if it is a comment or reshare.
 535                                 if (in_array($item["verb"], array(ACTIVITY_POST, ACTIVITY_SHARE)) AND
 536                                         !dbm::is_result($r) AND ($related != "")) {
 537                                         $reply_path = str_replace("/notice/", "/api/statuses/show/", $related).".atom";
 538
 539                                         if ($reply_path != $related) {
 540                                                 logger("Fetching related items for user ".$importer["uid"]." from ".$reply_path, LOGGER_DEBUG);
 541                                                 $reply_xml = fetch_url($reply_path);
 542
 543                                                 $reply_contact = $contact;
 544                                                 self::import($reply_xml,$importer,$reply_contact, $reply_hub);
 545
 546                                                 // After the import try to fetch the parent item again
 547                                                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
 548                                                         intval($importer["uid"]), dbesc($item["parent-uri"]));
 549                                         }
 550                                 }
 551                                 if ($r) {
 552                                         $item["type"] = 'remote-comment';
 553                                         $item["gravity"] = GRAVITY_COMMENT;
 554                                 }
 555                         } else
 556                                 $item["parent-uri"] = $item["uri"];
 557
 558                         $item_id = self::completion($conversation, $importer["uid"], $item, $self);
 559
 560                         if (!$item_id) {
 561                                 logger("Error storing item", LOGGER_DEBUG);
 562                                 continue;
 563                         }
 564
 565                         logger("Item was stored with id ".$item_id, LOGGER_DEBUG);
 566                 }
 567         }
 568
 569         /**
 570          * @brief Create an url out of an uri
 571          *
 572          * @param string $href URI in the format "parameter1:parameter1:..."
 573          *
 574          * @return string URL in the format http(s)://....
 575          */
 576         public static function convert_href($href) {
 577                 $elements = explode(":",$href);
 578
 579                 if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 580                         return $href;
 581
 582                 $server = explode(",", $elements[1]);
 583                 $conversation = explode("=", $elements[2]);
 584
 585                 if ((count($elements) == 4) AND ($elements[2] == "post"))
 586                         return "http://".$server[0]."/notice/".$elements[3];
 587
 588                 if ((count($conversation) != 2) OR ($conversation[1] ==""))
 589                         return $href;
 590
 591                 if ($elements[3] == "objectType=thread")
 592                         return "http://".$server[0]."/conversation/".$conversation[1];
 593                 else
 594                         return "http://".$server[0]."/notice/".$conversation[1];
 595
 596                 return $href;
 597         }
 598
 599         /**
 600          * @brief Checks if there are entries in conversations that aren't present on our side
 601          *
 602          * @param bool $mentions Fetch conversations where we are mentioned
 603          * @param bool $override Override the interval setting
 604          */
 605         public static function check_conversations($mentions = false, $override = false) {
 606                 $last = get_config('system','ostatus_last_poll');
 607
 608                 $poll_interval = intval(get_config('system','ostatus_poll_interval'));
 609                 if (!$poll_interval) {
 610                         $poll_interval = self::OSTATUS_DEFAULT_POLL_INTERVAL;
 611                 }
 612
 613                 // Don't poll if the interval is set negative
 614                 if (($poll_interval < 0) AND !$override) {
 615                         return;
 616                 }
 617
 618                 if (!$mentions) {
 619                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 620                         if (!$poll_timeframe) {
 621                                 $poll_timeframe = self::OSTATUS_DEFAULT_POLL_TIMEFRAME;
 622                         }
 623                 } else {
 624                         $poll_timeframe = intval(get_config('system','ostatus_poll_timeframe'));
 625                         if (!$poll_timeframe) {
 626                                 $poll_timeframe = self::OSTATUS_DEFAULT_POLL_TIMEFRAME_MENTIONS;
 627                         }
 628                 }
 629
 630
 631                 if ($last AND !$override) {
 632                         $next = $last + ($poll_interval * 60);
 633                         if ($next > time()) {
 634                                 logger('poll interval not reached');
 635                                 return;
 636                         }
 637                 }
 638
 639                 logger('cron_start');
 640
 641                 $start = date("Y-m-d H:i:s", time() - ($poll_timeframe * 60));
 642
 643                 if ($mentions) {
 644                         $conversations = q("SELECT `term`.`oid`, `term`.`url`, `term`.`uid` FROM `term`
 645                                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `term`.`oid` AND `thread`.`uid` = `term`.`uid`
 646                                                 WHERE `term`.`type` = 7 AND `term`.`term` > '%s' AND `thread`.`mention`
 647                                                 GROUP BY `term`.`url`, `term`.`uid` ORDER BY `term`.`term` DESC", dbesc($start));
 648                 } else {
 649                         $conversations = q("SELECT `oid`, `url`, `uid` FROM `term`
 650                                                 WHERE `type` = 7 AND `term` > '%s'
 651                                                 GROUP BY `url`, `uid` ORDER BY `term` DESC", dbesc($start));
 652                 }
 653
 654                 foreach ($conversations AS $conversation) {
 655                         self::completion($conversation['url'], $conversation['uid']);
 656                 }
 657
 658                 logger('cron_end');
 659
 660                 set_config('system','ostatus_last_poll', time());
 661         }
 662
 663         /**
 664          * @brief Updates the gcontact table with actor data from the conversation
 665          *
 666          * @param object $actor The actor object that contains the contact data
 667          */
 668         private function conv_fetch_actor($actor) {
 669
 670                 // We set the generation to "3" since the data here is not as reliable as the data we get on other occasions
 671                 $contact = array("network" => NETWORK_OSTATUS, "generation" => 3);
 672
 673                 if (isset($actor->url))
 674                         $contact["url"] = $actor->url;
 675
 676                 if (isset($actor->displayName))
 677                         $contact["name"] = $actor->displayName;
 678
 679                 if (isset($actor->portablecontacts_net->displayName))
 680                         $contact["name"] = $actor->portablecontacts_net->displayName;
 681
 682                 if (isset($actor->portablecontacts_net->preferredUsername))
 683                         $contact["nick"] = $actor->portablecontacts_net->preferredUsername;
 684
 685                 if (isset($actor->id))
 686                         $contact["alias"] = $actor->id;
 687
 688                 if (isset($actor->summary))
 689                         $contact["about"] = $actor->summary;
 690
 691                 if (isset($actor->portablecontacts_net->note))
 692                         $contact["about"] = $actor->portablecontacts_net->note;
 693
 694                 if (isset($actor->portablecontacts_net->addresses->formatted))
 695                         $contact["location"] = $actor->portablecontacts_net->addresses->formatted;
 696
 697
 698                 if (isset($actor->image->url))
 699                         $contact["photo"] = $actor->image->url;
 700
 701                 if (isset($actor->image->width))
 702                         $avatarwidth = $actor->image->width;
 703
 704                 if (is_array($actor->status_net->avatarLinks))
 705                         foreach ($actor->status_net->avatarLinks AS $avatar) {
 706                                 if ($avatarsize < $avatar->width) {
 707                                         $contact["photo"] = $avatar->url;
 708                                         $avatarsize = $avatar->width;
 709                                 }
 710                         }
 711
 712                 $contact["hide"] = false; // OStatus contacts are never hidden
 713                 update_gcontact($contact);
 714         }
 715
 716         /**
 717          * @brief Fetches the conversation url for a given item link or conversation id
 718          *
 719          * @param string $self The link to the posting
 720          * @param string $conversation_id The conversation id
 721          *
 722          * @return string The conversation url
 723          */
 724         private function fetch_conversation($self, $conversation_id = "") {
 725
 726                 if ($conversation_id != "") {
 727                         $elements = explode(":", $conversation_id);
 728
 729                         if ((count($elements) <= 2) OR ($elements[0] != "tag"))
 730                                 return $conversation_id;
 731                 }
 732
 733                 if ($self == "")
 734                         return "";
 735
 736                 $json = str_replace(".atom", ".json", $self);
 737
 738                 $raw = fetch_url($json);
 739                 if ($raw == "")
 740                         return "";
 741
 742                 $data = json_decode($raw);
 743                 if (!is_object($data))
 744                         return "";
 745
 746                 $conversation_id = $data->statusnet_conversation_id;
 747
 748                 $pos = strpos($self, "/api/statuses/show/");
 749                 $base_url = substr($self, 0, $pos);
 750
 751                 return $base_url."/conversation/".$conversation_id;
 752         }
 753
 754         /**
 755          * @brief Fetches actor details of a given actor and user id
 756          *
 757          * @param string $actor The actor url
 758          * @param int $uid The user id
 759          * @param int $contact_id The default contact-id
 760          *
 761          * @return array Array with actor details
 762          */
 763         private function get_actor_details($actor, $uid, $contact_id) {
 764
 765                 $details = array();
 766
 767                 $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` != '%s'",
 768                                         $uid, normalise_link($actor), NETWORK_STATUSNET);
 769
 770                 if (!$contact)
 771                         $contact = q("SELECT `id`, `rel`, `network` FROM `contact` WHERE `uid` = %d AND `alias` IN ('%s', '%s') AND `network` != '%s'",
 772                                         $uid, $actor, normalise_link($actor), NETWORK_STATUSNET);
 773
 774                 if ($contact) {
 775                         logger("Found contact for url ".$actor, LOGGER_DEBUG);
 776                         $details["contact_id"] = $contact[0]["id"];
 777                         $details["network"] = $contact[0]["network"];
 778
 779                         $details["not_following"] = !in_array($contact[0]["rel"], array(CONTACT_IS_SHARING, CONTACT_IS_FRIEND));
 780                 } else {
 781                         logger("No contact found for user ".$uid." and url ".$actor, LOGGER_DEBUG);
 782
 783                         // Adding a global contact
 784                         /// @TODO Use this data for the post
 785                         $details["global_contact_id"] = get_contact($actor, 0);
 786
 787                         logger("Global contact ".$global_contact_id." found for url ".$actor, LOGGER_DEBUG);
 788
 789                         $details["contact_id"] = $contact_id;
 790                         $details["network"] = NETWORK_OSTATUS;
 791
 792                         $details["not_following"] = true;
 793                 }
 794
 795                 return $details;
 796         }
 797
 798         /**
 799          * @brief Stores an item and completes the thread
 800          *
 801          * @param string $conversation_url The URI of the conversation
 802          * @param integer $uid The user id
 803          * @param array $item Data of the item that is to be posted
 804          *
 805          * @return integer The item id of the posted item array
 806          */
 807         private function completion($conversation_url, $uid, $item = array(), $self = "") {
 808
 809                 /// @todo This function is totally ugly and has to be rewritten totally
 810
 811                 $item_stored = -1;
 812
 813                 $conversation_url = self::fetch_conversation($self, $conversation_url);
 814
 815                 // If the thread shouldn't be completed then store the item and go away
 816                 // Don't do a completion on liked content
 817                 if (((intval(get_config('system','ostatus_poll_interval')) == -2) AND (count($item) > 0)) OR
 818                         ($item["verb"] == ACTIVITY_LIKE) OR ($conversation_url == "")) {
 819                         $item_stored = item_store($item, true);
 820                         return($item_stored);
 821                 }
 822
 823                 // Get the parent
 824                 $parents = q("SELECT `item`.`id`, `item`.`parent`, `item`.`uri`, `item`.`contact-id`, `item`.`type`,
 825                                 `item`.`verb`, `item`.`visible` FROM `term`
 826                                 STRAIGHT_JOIN `item` AS `thritem` ON `thritem`.`parent` = `term`.`oid`
 827                                 STRAIGHT_JOIN `item` ON `item`.`parent` = `thritem`.`parent`
 828                                 WHERE `term`.`uid` = %d AND `term`.`otype` = %d AND `term`.`type` = %d AND `term`.`url` = '%s'",
 829                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 830
 831 /*              2016-10-23: The old query will be kept until we are sure that the query above is a good and fast replacement
 832
 833                 $parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 834                                 (SELECT `parent` FROM `item` WHERE `id` IN
 835                                         (SELECT `oid` FROM `term` WHERE `uid` = %d AND `otype` = %d AND `type` = %d AND `url` = '%s'))",
 836                                 intval($uid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION), dbesc($conversation_url));
 837 */
 838                 if ($parents)
 839                         $parent = $parents[0];
 840                 elseif (count($item) > 0) {
 841                         $parent = $item;
 842                         $parent["type"] = "remote";
 843                         $parent["verb"] = ACTIVITY_POST;
 844                         $parent["visible"] = 1;
 845                 } else {
 846                         // Preset the parent
 847                         $r = q("SELECT `id` FROM `contact` WHERE `self` AND `uid`=%d", $uid);
 848                         if (!$r)
 849                                 return(-2);
 850
 851                         $parent = array();
 852                         $parent["id"] = 0;
 853                         $parent["parent"] = 0;
 854                         $parent["uri"] = "";
 855                         $parent["contact-id"] = $r[0]["id"];
 856                         $parent["type"] = "remote";
 857                         $parent["verb"] = ACTIVITY_POST;
 858                         $parent["visible"] = 1;
 859                 }
 860
 861                 $conv = str_replace("/conversation/", "/api/statusnet/conversation/", $conversation_url).".as";
 862                 $pageno = 1;
 863                 $items = array();
 864
 865                 logger('fetching conversation url '.$conv.' (Self: '.$self.') for user '.$uid);
 866
 867                 do {
 868                         $conv_arr = z_fetch_url($conv."?page=".$pageno);
 869
 870                         // If it is a non-ssl site and there is an error, then try ssl or vice versa
 871                         if (!$conv_arr["success"] AND (substr($conv, 0, 7) == "http://")) {
 872                                 $conv = str_replace("http://", "https://", $conv);
 873                                 $conv_as = fetch_url($conv."?page=".$pageno);
 874                         } elseif (!$conv_arr["success"] AND (substr($conv, 0, 8) == "https://")) {
 875                                 $conv = str_replace("https://", "http://", $conv);
 876                                 $conv_as = fetch_url($conv."?page=".$pageno);
 877                         } else
 878                                 $conv_as = $conv_arr["body"];
 879
 880                         $conv_as = str_replace(',"statusnet:notice_info":', ',"statusnet_notice_info":', $conv_as);
 881                         $conv_as = json_decode($conv_as);
 882
 883                         $no_of_items = sizeof($items);
 884
 885                         if (@is_array($conv_as->items))
 886                                 foreach ($conv_as->items AS $single_item)
 887                                         $items[$single_item->id] = $single_item;
 888
 889                         if ($no_of_items == sizeof($items))
 890                                 break;
 891
 892                         $pageno++;
 893
 894                 } while (true);
 895
 896                 logger('fetching conversation done. Found '.count($items).' items');
 897
 898                 if (!sizeof($items)) {
 899                         if (count($item) > 0) {
 900                                 $item_stored = item_store($item, true);
 901
 902                                 if ($item_stored) {
 903                                         logger("Conversation ".$conversation_url." couldn't be fetched. Item uri ".$item["uri"]." stored: ".$item_stored, LOGGER_DEBUG);
 904                                         self::store_conversation($item_id, $conversation_url);
 905                                 }
 906
 907                                 return($item_stored);
 908                         } else
 909                                 return(-3);
 910                 }
 911
 912                 $items = array_reverse($items);
 913
 914                 $r = q("SELECT `nurl` FROM `contact` WHERE `uid` = %d AND `self`", intval($uid));
 915                 $importer = $r[0];
 916
 917                 $new_parent = true;
 918
 919                 foreach ($items as $single_conv) {
 920
 921                         // Update the gcontact table
 922                         self::conv_fetch_actor($single_conv->actor);
 923
 924                         // Test - remove before flight
 925                         //$tempfile = tempnam(get_temppath(), "conversation");
 926                         //file_put_contents($tempfile, json_encode($single_conv));
 927
 928                         $mention = false;
 929
 930                         if (isset($single_conv->object->id))
 931                                 $single_conv->id = $single_conv->object->id;
 932
 933                         $plink = self::convert_href($single_conv->id);
 934                         if (isset($single_conv->object->url))
 935                                 $plink = self::convert_href($single_conv->object->url);
 936
 937                         if (@!$single_conv->id)
 938                                 continue;
 939
 940                         logger("Got id ".$single_conv->id, LOGGER_DEBUG);
 941
 942                         if ($first_id == "") {
 943                                 $first_id = $single_conv->id;
 944
 945                                 // The first post of the conversation isn't our first post. There are three options:
 946                                 // 1. Our conversation hasn't the "real" thread starter
 947                                 // 2. This first post is a post inside our thread
 948                                 // 3. This first post is a post inside another thread
 949                                 if (($first_id != $parent["uri"]) AND ($parent["uri"] != "")) {
 950
 951                                         $new_parent = true;
 952
 953                                         $new_parents = q("SELECT `id`, `parent`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `id` IN
 954                                                                 (SELECT `parent` FROM `item`
 955                                                                         WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s')) LIMIT 1",
 956                                                 intval($uid), dbesc($first_id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 957                                         if ($new_parents) {
 958                                                 if ($new_parents[0]["parent"] == $parent["parent"]) {
 959                                                         // Option 2: This post is already present inside our thread - but not as thread starter
 960                                                         logger("Option 2: uri present in our thread: ".$first_id, LOGGER_DEBUG);
 961                                                         $first_id = $parent["uri"];
 962                                                 } else {
 963                                                         // Option 3: Not so good. We have mixed parents. We have to see how to clean this up.
 964                                                         // For now just take the new parent.
 965                                                         $parent = $new_parents[0];
 966                                                         $first_id = $parent["uri"];
 967                                                         logger("Option 3: mixed parents for uri ".$first_id, LOGGER_DEBUG);
 968                                                 }
 969                                         } else {
 970                                                 // Option 1: We hadn't got the real thread starter
 971                                                 // We have to clean up our existing messages.
 972                                                 $parent["id"] = 0;
 973                                                 $parent["uri"] = $first_id;
 974                                                 logger("Option 1: we have a new parent: ".$first_id, LOGGER_DEBUG);
 975                                         }
 976                                 } elseif ($parent["uri"] == "") {
 977                                         $parent["id"] = 0;
 978                                         $parent["uri"] = $first_id;
 979                                 }
 980                         }
 981
 982                         $parent_uri = $parent["uri"];
 983
 984                         // "context" only seems to exist on older servers
 985                         if (isset($single_conv->context->inReplyTo->id)) {
 986                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 987                                                         intval($uid), dbesc($single_conv->context->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 988                                 if ($parent_exists)
 989                                         $parent_uri = $single_conv->context->inReplyTo->id;
 990                         }
 991
 992                         // This is the current way
 993                         if (isset($single_conv->object->inReplyTo->id)) {
 994                                 $parent_exists = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
 995                                                         intval($uid), dbesc($single_conv->object->inReplyTo->id), dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
 996                                 if ($parent_exists)
 997                                         $parent_uri = $single_conv->object->inReplyTo->id;
 998                         }
 999
1000                         $message_exists = q("SELECT `id`, `parent`, `uri` FROM `item` WHERE `uid` = %d AND `uri` = '%s' AND `network` IN ('%s','%s') LIMIT 1",
1001                                                         intval($uid), dbesc($single_conv->id),
1002                                                         dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
1003                         if ($message_exists) {
1004                                 logger("Message ".$single_conv->id." already existed on the system", LOGGER_DEBUG);
1005
1006                                 if ($parent["id"] != 0) {
1007                                         $existing_message = $message_exists[0];
1008
1009                                         // We improved the way we fetch OStatus messages, this shouldn't happen very often now
1010                                         /// @TODO We have to change the shadow copies as well. This way here is really ugly.
1011                                         if ($existing_message["parent"] != $parent["id"]) {
1012                                                 logger('updating id '.$existing_message["id"].' with parent '.$existing_message["parent"].' to parent '.$parent["id"].' uri '.$parent["uri"].' thread '.$parent_uri, LOGGER_DEBUG);
1013
1014                                                 // Update the parent id of the selected item
1015                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `id` = %d",
1016                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["id"]));
1017
1018                                                 // Update the parent uri in the thread - but only if it points to itself
1019                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE `id` = %d AND `uri` = `thr-parent`",
1020                                                         dbesc($parent_uri), intval($existing_message["id"]));
1021
1022                                                 // try to change all items of the same parent
1023                                                 $r = q("UPDATE `item` SET `parent` = %d, `parent-uri` = '%s' WHERE `parent` = %d",
1024                                                         intval($parent["id"]), dbesc($parent["uri"]), intval($existing_message["parent"]));
1025
1026                                                 // Update the parent uri in the thread - but only if it points to itself
1027                                                 $r = q("UPDATE `item` SET `thr-parent` = '%s' WHERE (`parent` = %d) AND (`uri` = `thr-parent`)",
1028                                                         dbesc($parent["uri"]), intval($existing_message["parent"]));
1029
1030                                                 // Now delete the thread
1031                                                 delete_thread($existing_message["parent"]);
1032                                         }
1033                                 }
1034
1035                                 // The item we are having on the system is the one that we wanted to store via the item array
1036                                 if (isset($item["uri"]) AND ($item["uri"] == $existing_message["uri"])) {
1037                                         $item = array();
1038                                         $item_stored = 0;
1039                                 }
1040
1041                                 continue;
1042                         }
1043
1044                         if (is_array($single_conv->to))
1045                                 foreach($single_conv->to AS $to)
1046                                         if ($importer["nurl"] == normalise_link($to->id))
1047                                                 $mention = true;
1048
1049                         $actor = $single_conv->actor->id;
1050                         if (isset($single_conv->actor->url))
1051                                 $actor = $single_conv->actor->url;
1052
1053                         $details = self::get_actor_details($actor, $uid, $parent["contact-id"]);
1054
1055                         // Do we only want to import threads that were started by our contacts?
1056                         if ($details["not_following"] AND $new_parent AND get_config('system','ostatus_full_threads')) {
1057                                 logger("Don't import uri ".$first_id." because user ".$uid." doesn't follow the person ".$actor, LOGGER_DEBUG);
1058                                 continue;
1059                         }
1060
1061                         $arr = array();
1062                         $arr["network"] = $details["network"];
1063                         $arr["uri"] = $single_conv->id;
1064                         $arr["plink"] = $plink;
1065                         $arr["uid"] = $uid;
1066                         $arr["contact-id"] = $details["contact_id"];
1067                         $arr["parent-uri"] = $parent_uri;
1068                         $arr["created"] = $single_conv->published;
1069                         $arr["edited"] = $single_conv->published;
1070                         $arr["owner-name"] = $single_conv->actor->displayName;
1071                         if ($arr["owner-name"] == '')
1072                                 $arr["owner-name"] = $single_conv->actor->contact->displayName;
1073                         if ($arr["owner-name"] == '')
1074                                 $arr["owner-name"] = $single_conv->actor->portablecontacts_net->displayName;
1075
1076                         $arr["owner-link"] = $actor;
1077                         $arr["owner-avatar"] = $single_conv->actor->image->url;
1078                         $arr["author-name"] = $arr["owner-name"];
1079                         $arr["author-link"] = $actor;
1080                         $arr["author-avatar"] = $single_conv->actor->image->url;
1081                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->content));
1082
1083                         if (isset($single_conv->status_net->notice_info->source))
1084                                 $arr["app"] = strip_tags($single_conv->status_net->notice_info->source);
1085                         elseif (isset($single_conv->statusnet->notice_info->source))
1086                                 $arr["app"] = strip_tags($single_conv->statusnet->notice_info->source);
1087                         elseif (isset($single_conv->statusnet_notice_info->source))
1088                                 $arr["app"] = strip_tags($single_conv->statusnet_notice_info->source);
1089                         elseif (isset($single_conv->provider->displayName))
1090                                 $arr["app"] = $single_conv->provider->displayName;
1091                         else
1092                                 $arr["app"] = "OStatus";
1093
1094
1095                         $arr["object"] = json_encode($single_conv);
1096                         $arr["verb"] = $parent["verb"];
1097                         $arr["visible"] = $parent["visible"];
1098                         $arr["location"] = $single_conv->location->displayName;
1099                         $arr["coord"] = trim($single_conv->location->lat." ".$single_conv->location->lon);
1100
1101                         // Is it a reshared item?
1102                         if (isset($single_conv->verb) AND ($single_conv->verb == "share") AND isset($single_conv->object)) {
1103                                 if (is_array($single_conv->object))
1104                                         $single_conv->object = $single_conv->object[0];
1105
1106                                 logger("Found reshared item ".$single_conv->object->id);
1107
1108                                 // $single_conv->object->context->conversation;
1109
1110                                 if (isset($single_conv->object->object->id))
1111                                         $arr["uri"] = $single_conv->object->object->id;
1112                                 else
1113                                         $arr["uri"] = $single_conv->object->id;
1114
1115                                 if (isset($single_conv->object->object->url))
1116                                         $plink = self::convert_href($single_conv->object->object->url);
1117                                 else
1118                                         $plink = self::convert_href($single_conv->object->url);
1119
1120                                 if (isset($single_conv->object->object->content))
1121                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->object->content));
1122                                 else
1123                                         $arr["body"] = add_page_info_to_body(html2bbcode($single_conv->object->content));
1124
1125                                 $arr["plink"] = $plink;
1126
1127                                 $arr["created"] = $single_conv->object->published;
1128                                 $arr["edited"] = $single_conv->object->published;
1129
1130                                 $arr["author-name"] = $single_conv->object->actor->displayName;
1131                                 if ($arr["owner-name"] == '')
1132                                         $arr["author-name"] = $single_conv->object->actor->contact->displayName;
1133
1134                                 $arr["author-link"] = $single_conv->object->actor->url;
1135                                 $arr["author-avatar"] = $single_conv->object->actor->image->url;
1136
1137                                 $arr["app"] = $single_conv->object->provider->displayName."#";
1138                                 //$arr["verb"] = $single_conv->object->verb;
1139
1140                                 $arr["location"] = $single_conv->object->location->displayName;
1141                                 $arr["coord"] = trim($single_conv->object->location->lat." ".$single_conv->object->location->lon);
1142                         }
1143
1144                         if ($arr["location"] == "")
1145                                 unset($arr["location"]);
1146
1147                         if ($arr["coord"] == "")
1148                                 unset($arr["coord"]);
1149
1150                         // Copy fields from given item array
1151                         if (isset($item["uri"]) AND (($item["uri"] == $arr["uri"]) OR ($item["uri"] ==  $single_conv->id))) {
1152                                 $copy_fields = array("owner-name", "owner-link", "owner-avatar", "author-name", "author-link", "author-avatar",
1153                                                         "gravity", "body", "object-type", "object", "verb", "created", "edited", "coord", "tag",
1154                                                         "title", "attach", "app", "type", "location", "contact-id", "uri");
1155                                 foreach ($copy_fields AS $field)
1156                                         if (isset($item[$field]))
1157                                                 $arr[$field] = $item[$field];
1158
1159                         }
1160
1161                         $newitem = item_store($arr);
1162                         if (!$newitem) {
1163                                 logger("Item wasn't stored ".print_r($arr, true), LOGGER_DEBUG);
1164                                 continue;
1165                         }
1166
1167                         if (isset($item["uri"]) AND ($item["uri"] == $arr["uri"])) {
1168                                 $item = array();
1169                                 $item_stored = $newitem;
1170                         }
1171
1172                         logger('Stored new item '.$plink.' for parent '.$arr["parent-uri"].' under id '.$newitem, LOGGER_DEBUG);
1173
1174                         // Add the conversation entry (but don't fetch the whole conversation)
1175                         self::store_conversation($newitem, $conversation_url);
1176
1177                         // If the newly created item is the top item then change the parent settings of the thread
1178                         // This shouldn't happen anymore. This is supposed to be absolote.
1179                         if ($arr["uri"] == $first_id) {
1180                                 logger('setting new parent to id '.$newitem);
1181                                 $new_parents = q("SELECT `id`, `uri`, `contact-id`, `type`, `verb`, `visible` FROM `item` WHERE `uid` = %d AND `id` = %d LIMIT 1",
1182                                         intval($uid), intval($newitem));
1183                                 if ($new_parents)
1184                                         $parent = $new_parents[0];
1185                         }
1186                 }
1187
1188                 if (($item_stored < 0) AND (count($item) > 0)) {
1189
1190                         if (get_config('system','ostatus_full_threads')) {
1191                                 $details = self::get_actor_details($item["owner-link"], $uid, $item["contact-id"]);
1192                                 if ($details["not_following"]) {
1193                                         logger("Don't import uri ".$item["uri"]." because user ".$uid." doesn't follow the person ".$item["owner-link"], LOGGER_DEBUG);
1194                                         return false;
1195                                 }
1196                         }
1197
1198                         $item_stored = item_store($item, true);
1199                         if ($item_stored) {
1200                                 logger("Uri ".$item["uri"]." wasn't found in conversation ".$conversation_url, LOGGER_DEBUG);
1201                                 self::store_conversation($item_stored, $conversation_url);
1202                         }
1203                 }
1204
1205                 return($item_stored);
1206         }
1207
1208         /**
1209          * @brief Stores conversation data into the database
1210          *
1211          * @param integer $itemid The id of the item
1212          * @param string $conversation_url The uri of the conversation
1213          */
1214         private function store_conversation($itemid, $conversation_url) {
1215
1216                 $conversation_url = self::convert_href($conversation_url);
1217
1218                 $messages = q("SELECT `uid`, `parent`, `created`, `received`, `guid` FROM `item` WHERE `id` = %d LIMIT 1", intval($itemid));
1219                 if (!$messages)
1220                         return;
1221                 $message = $messages[0];
1222
1223                 // Store conversation url if not done before
1224                 $conversation = q("SELECT `url` FROM `term` WHERE `uid` = %d AND `oid` = %d AND `otype` = %d AND `type` = %d",
1225                         intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION));
1226
1227                 if (!$conversation) {
1228                         $r = q("INSERT INTO `term` (`uid`, `oid`, `otype`, `type`, `term`, `url`, `created`, `received`, `guid`) VALUES (%d, %d, %d, %d, '%s', '%s', '%s', '%s', '%s')",
1229                                 intval($message["uid"]), intval($itemid), intval(TERM_OBJ_POST), intval(TERM_CONVERSATION),
1230                                 dbesc($message["created"]), dbesc($conversation_url), dbesc($message["created"]), dbesc($message["received"]), dbesc($message["guid"]));
1231                         logger('Storing conversation url '.$conversation_url.' for id '.$itemid);
1232                 }
1233         }
1234
1235         /**
1236          * @brief Checks if the current post is a reshare
1237          *
1238          * @param array $item The item array of thw post
1239          *
1240          * @return string The guid if the post is a reshare
1241          */
1242         private function get_reshared_guid($item) {
1243                 $body = trim($item["body"]);
1244
1245                 // Skip if it isn't a pure repeated messages
1246                 // Does it start with a share?
1247                 if (strpos($body, "[share") > 0)
1248                         return("");
1249
1250                 // Does it end with a share?
1251                 if (strlen($body) > (strrpos($body, "[/share]") + 8))
1252                         return("");
1253
1254                 $attributes = preg_replace("/\[share(.*?)\]\s?(.*?)\s?\[\/share\]\s?/ism","$1",$body);
1255                 // Skip if there is no shared message in there
1256                 if ($body == $attributes)
1257                         return(false);
1258
1259                 $guid = "";
1260                 preg_match("/guid='(.*?)'/ism", $attributes, $matches);
1261                 if ($matches[1] != "")
1262                         $guid = $matches[1];
1263
1264                 preg_match('/guid="(.*?)"/ism', $attributes, $matches);
1265                 if ($matches[1] != "")
1266                         $guid = $matches[1];
1267
1268                 return $guid;
1269         }
1270
1271         /**
1272          * @brief Cleans the body of a post if it contains picture links
1273          *
1274          * @param string $body The body
1275          *
1276          * @return string The cleaned body
1277          */
1278         private function format_picture_post($body) {
1279                 $siteinfo = get_attached_data($body);
1280
1281                 if (($siteinfo["type"] == "photo")) {
1282                         if (isset($siteinfo["preview"]))
1283                                 $preview = $siteinfo["preview"];
1284                         else
1285                                 $preview = $siteinfo["image"];
1286
1287                         // Is it a remote picture? Then make a smaller preview here
1288                         $preview = proxy_url($preview, false, PROXY_SIZE_SMALL);
1289
1290                         // Is it a local picture? Then make it smaller here
1291                         $preview = str_replace(array("-0.jpg", "-0.png"), array("-2.jpg", "-2.png"), $preview);
1292                         $preview = str_replace(array("-1.jpg", "-1.png"), array("-2.jpg", "-2.png"), $preview);
1293
1294                         if (isset($siteinfo["url"]))
1295                                 $url = $siteinfo["url"];
1296                         else
1297                                 $url = $siteinfo["image"];
1298
1299                         $body = trim($siteinfo["text"])." [url]".$url."[/url]\n[img]".$preview."[/img]";
1300                 }
1301
1302                 return $body;
1303         }
1304
1305         /**
1306          * @brief Adds the header elements to the XML document
1307          *
1308          * @param object $doc XML document
1309          * @param array $owner Contact data of the poster
1310          *
1311          * @return object header root element
1312          */
1313         private function add_header($doc, $owner) {
1314
1315                 $a = get_app();
1316
1317                 $root = $doc->createElementNS(NAMESPACE_ATOM1, 'feed');
1318                 $doc->appendChild($root);
1319
1320                 $root->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1321                 $root->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1322                 $root->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1323                 $root->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1324                 $root->setAttribute("xmlns:poco", NAMESPACE_POCO);
1325                 $root->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1326                 $root->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1327
1328                 $attributes = array("uri" => "https://friendi.ca", "version" => FRIENDICA_VERSION."-".DB_UPDATE_VERSION);
1329                 xml::add_element($doc, $root, "generator", FRIENDICA_PLATFORM, $attributes);
1330                 xml::add_element($doc, $root, "id", App::get_baseurl()."/profile/".$owner["nick"]);
1331                 xml::add_element($doc, $root, "title", sprintf("%s timeline", $owner["name"]));
1332                 xml::add_element($doc, $root, "subtitle", sprintf("Updates from %s on %s", $owner["name"], $a->config["sitename"]));
1333                 xml::add_element($doc, $root, "logo", $owner["photo"]);
1334                 xml::add_element($doc, $root, "updated", datetime_convert("UTC", "UTC", "now", ATOM_TIME));
1335
1336                 $author = self::add_author($doc, $owner);
1337                 $root->appendChild($author);
1338
1339                 $attributes = array("href" => $owner["url"], "rel" => "alternate", "type" => "text/html");
1340                 xml::add_element($doc, $root, "link", "", $attributes);
1341
1342                 /// @TODO We have to find out what this is
1343                 /// $attributes = array("href" => App::get_baseurl()."/sup",
1344                 ///             "rel" => "http://api.friendfeed.com/2008/03#sup",
1345                 ///             "type" => "application/json");
1346                 /// xml::add_element($doc, $root, "link", "", $attributes);
1347
1348                 self::hublinks($doc, $root);
1349
1350                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "salmon");
1351                 xml::add_element($doc, $root, "link", "", $attributes);
1352
1353                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-replies");
1354                 xml::add_element($doc, $root, "link", "", $attributes);
1355
1356                 $attributes = array("href" => App::get_baseurl()."/salmon/".$owner["nick"], "rel" => "http://salmon-protocol.org/ns/salmon-mention");
1357                 xml::add_element($doc, $root, "link", "", $attributes);
1358
1359                 $attributes = array("href" => App::get_baseurl()."/api/statuses/user_timeline/".$owner["nick"].".atom",
1360                                 "rel" => "self", "type" => "application/atom+xml");
1361                 xml::add_element($doc, $root, "link", "", $attributes);
1362
1363                 return $root;
1364         }
1365
1366         /**
1367          * @brief Add the link to the push hubs to the XML document
1368          *
1369          * @param object $doc XML document
1370          * @param object $root XML root element where the hub links are added
1371          */
1372         public static function hublinks($doc, $root) {
1373                 $hub = get_config('system','huburl');
1374
1375                 $hubxml = '';
1376                 if(strlen($hub)) {
1377                         $hubs = explode(',', $hub);
1378                         if(count($hubs)) {
1379                                 foreach($hubs as $h) {
1380                                         $h = trim($h);
1381                                         if(! strlen($h))
1382                                                 continue;
1383                                         if ($h === '[internal]')
1384                                                 $h = App::get_baseurl() . '/pubsubhubbub';
1385                                         xml::add_element($doc, $root, "link", "", array("href" => $h, "rel" => "hub"));
1386                                 }
1387                         }
1388                 }
1389         }
1390
1391         /**
1392          * @brief Adds attachement data to the XML document
1393          *
1394          * @param object $doc XML document
1395          * @param object $root XML root element where the hub links are added
1396          * @param array $item Data of the item that is to be posted
1397          */
1398         private function get_attachment($doc, $root, $item) {
1399                 $o = "";
1400                 $siteinfo = get_attached_data($item["body"]);
1401
1402                 switch($siteinfo["type"]) {
1403                         case 'link':
1404                                 $attributes = array("rel" => "enclosure",
1405                                                 "href" => $siteinfo["url"],
1406                                                 "type" => "text/html; charset=UTF-8",
1407                                                 "length" => "",
1408                                                 "title" => $siteinfo["title"]);
1409                                 xml::add_element($doc, $root, "link", "", $attributes);
1410                                 break;
1411                         case 'photo':
1412                                 $imgdata = get_photo_info($siteinfo["image"]);
1413                                 $attributes = array("rel" => "enclosure",
1414                                                 "href" => $siteinfo["image"],
1415                                                 "type" => $imgdata["mime"],
1416                                                 "length" => intval($imgdata["size"]));
1417                                 xml::add_element($doc, $root, "link", "", $attributes);
1418                                 break;
1419                         case 'video':
1420                                 $attributes = array("rel" => "enclosure",
1421                                                 "href" => $siteinfo["url"],
1422                                                 "type" => "text/html; charset=UTF-8",
1423                                                 "length" => "",
1424                                                 "title" => $siteinfo["title"]);
1425                                 xml::add_element($doc, $root, "link", "", $attributes);
1426                                 break;
1427                         default:
1428                                 break;
1429                 }
1430
1431                 if (($siteinfo["type"] != "photo") AND isset($siteinfo["image"])) {
1432                         $photodata = get_photo_info($siteinfo["image"]);
1433
1434                         $attributes = array("rel" => "preview", "href" => $siteinfo["image"], "media:width" => $photodata[0], "media:height" => $photodata[1]);
1435                         xml::add_element($doc, $root, "link", "", $attributes);
1436                 }
1437
1438
1439                 $arr = explode('[/attach],',$item['attach']);
1440                 if(count($arr)) {
1441                         foreach($arr as $r) {
1442                                 $matches = false;
1443                                 $cnt = preg_match('|\[attach\]href=\"(.*?)\" length=\"(.*?)\" type=\"(.*?)\" title=\"(.*?)\"|',$r,$matches);
1444                                 if($cnt) {
1445                                         $attributes = array("rel" => "enclosure",
1446                                                         "href" => $matches[1],
1447                                                         "type" => $matches[3]);
1448
1449                                         if(intval($matches[2]))
1450                                                 $attributes["length"] = intval($matches[2]);
1451
1452                                         if(trim($matches[4]) != "")
1453                                                 $attributes["title"] = trim($matches[4]);
1454
1455                                         xml::add_element($doc, $root, "link", "", $attributes);
1456                                 }
1457                         }
1458                 }
1459         }
1460
1461         /**
1462          * @brief Adds the author element to the XML document
1463          *
1464          * @param object $doc XML document
1465          * @param array $owner Contact data of the poster
1466          *
1467          * @return object author element
1468          */
1469         private function add_author($doc, $owner) {
1470
1471                 $r = q("SELECT `homepage` FROM `profile` WHERE `uid` = %d AND `is-default` LIMIT 1", intval($owner["uid"]));
1472                 if ($r)
1473                         $profile = $r[0];
1474
1475                 $author = $doc->createElement("author");
1476                 xml::add_element($doc, $author, "activity:object-type", ACTIVITY_OBJ_PERSON);
1477                 xml::add_element($doc, $author, "uri", $owner["url"]);
1478                 xml::add_element($doc, $author, "name", $owner["name"]);
1479                 xml::add_element($doc, $author, "summary", bbcode($owner["about"], false, false, 7));
1480
1481                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $owner["url"]);
1482                 xml::add_element($doc, $author, "link", "", $attributes);
1483
1484                 $attributes = array(
1485                                 "rel" => "avatar",
1486                                 "type" => "image/jpeg", // To-Do?
1487                                 "media:width" => 175,
1488                                 "media:height" => 175,
1489                                 "href" => $owner["photo"]);
1490                 xml::add_element($doc, $author, "link", "", $attributes);
1491
1492                 if (isset($owner["thumb"])) {
1493                         $attributes = array(
1494                                         "rel" => "avatar",
1495                                         "type" => "image/jpeg", // To-Do?
1496                                         "media:width" => 80,
1497                                         "media:height" => 80,
1498                                         "href" => $owner["thumb"]);
1499                         xml::add_element($doc, $author, "link", "", $attributes);
1500                 }
1501
1502                 xml::add_element($doc, $author, "poco:preferredUsername", $owner["nick"]);
1503                 xml::add_element($doc, $author, "poco:displayName", $owner["name"]);
1504                 xml::add_element($doc, $author, "poco:note", bbcode($owner["about"], false, false, 7));
1505
1506                 if (trim($owner["location"]) != "") {
1507                         $element = $doc->createElement("poco:address");
1508                         xml::add_element($doc, $element, "poco:formatted", $owner["location"]);
1509                         $author->appendChild($element);
1510                 }
1511
1512                 if (trim($profile["homepage"]) != "") {
1513                         $urls = $doc->createElement("poco:urls");
1514                         xml::add_element($doc, $urls, "poco:type", "homepage");
1515                         xml::add_element($doc, $urls, "poco:value", $profile["homepage"]);
1516                         xml::add_element($doc, $urls, "poco:primary", "true");
1517                         $author->appendChild($urls);
1518                 }
1519
1520                 if (count($profile)) {
1521                         xml::add_element($doc, $author, "followers", "", array("url" => App::get_baseurl()."/viewcontacts/".$owner["nick"]));
1522                         xml::add_element($doc, $author, "statusnet:profile_info", "", array("local_id" => $owner["uid"]));
1523                 }
1524
1525                 return $author;
1526         }
1527
1528         /**
1529          * @TODO Picture attachments should look like this:
1530          *      <a href="https://status.pirati.ca/attachment/572819" title="https://status.pirati.ca/file/heluecht-20151202T222602-rd3u49p.gif"
1531          *      class="attachment thumbnail" id="attachment-572819" rel="nofollow external">https://status.pirati.ca/attachment/572819</a>
1532          *
1533         */
1534
1535         /**
1536          * @brief Returns the given activity if present - otherwise returns the "post" activity
1537          *
1538          * @param array $item Data of the item that is to be posted
1539          *
1540          * @return string activity
1541          */
1542         function construct_verb($item) {
1543                 if ($item['verb'])
1544                         return $item['verb'];
1545                 return ACTIVITY_POST;
1546         }
1547
1548         /**
1549          * @brief Returns the given object type if present - otherwise returns the "note" object type
1550          *
1551          * @param array $item Data of the item that is to be posted
1552          *
1553          * @return string Object type
1554          */
1555         function construct_objecttype($item) {
1556                 if (in_array($item['object-type'], array(ACTIVITY_OBJ_NOTE, ACTIVITY_OBJ_COMMENT)))
1557                         return $item['object-type'];
1558                 return ACTIVITY_OBJ_NOTE;
1559         }
1560
1561         /**
1562          * @brief Adds an entry element to the XML document
1563          *
1564          * @param object $doc XML document
1565          * @param array $item Data of the item that is to be posted
1566          * @param array $owner Contact data of the poster
1567          * @param bool $toplevel
1568          *
1569          * @return object Entry element
1570          */
1571         private function entry($doc, $item, $owner, $toplevel = false) {
1572                 $repeated_guid = self::get_reshared_guid($item);
1573                 if ($repeated_guid != "")
1574                         $xml = self::reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel);
1575
1576                 if ($xml)
1577                         return $xml;
1578
1579                 if ($item["verb"] == ACTIVITY_LIKE) {
1580                         return self::like_entry($doc, $item, $owner, $toplevel);
1581                 } elseif (in_array($item["verb"], array(ACTIVITY_FOLLOW, NAMESPACE_OSTATUS."/unfollow"))) {
1582                         return self::follow_entry($doc, $item, $owner, $toplevel);
1583                 } else {
1584                         return self::note_entry($doc, $item, $owner, $toplevel);
1585                 }
1586         }
1587
1588         /**
1589          * @brief Adds a source entry to the XML document
1590          *
1591          * @param object $doc XML document
1592          * @param array $contact Array of the contact that is added
1593          *
1594          * @return object Source element
1595          */
1596         private function source_entry($doc, $contact) {
1597                 $source = $doc->createElement("source");
1598                 xml::add_element($doc, $source, "id", $contact["poll"]);
1599                 xml::add_element($doc, $source, "title", $contact["name"]);
1600                 xml::add_element($doc, $source, "link", "", array("rel" => "alternate",
1601                                                                 "type" => "text/html",
1602                                                                 "href" => $contact["alias"]));
1603                 xml::add_element($doc, $source, "link", "", array("rel" => "self",
1604                                                                 "type" => "application/atom+xml",
1605                                                                 "href" => $contact["poll"]));
1606                 xml::add_element($doc, $source, "icon", $contact["photo"]);
1607                 xml::add_element($doc, $source, "updated", datetime_convert("UTC","UTC",$contact["success_update"]."+00:00",ATOM_TIME));
1608
1609                 return $source;
1610         }
1611
1612         /**
1613          * @brief Fetches contact data from the contact or the gcontact table
1614          *
1615          * @param string $url URL of the contact
1616          * @param array $owner Contact data of the poster
1617          *
1618          * @return array Contact array
1619          */
1620         private function contact_entry($url, $owner) {
1621
1622                 $r = q("SELECT * FROM `contact` WHERE `nurl` = '%s' AND `uid` IN (0, %d) ORDER BY `uid` DESC LIMIT 1",
1623                         dbesc(normalise_link($url)), intval($owner["uid"]));
1624                 if ($r) {
1625                         $contact = $r[0];
1626                         $contact["uid"] = -1;
1627                 }
1628
1629                 if (!$r) {
1630                         $r = q("SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
1631                                 dbesc(normalise_link($url)));
1632                         if ($r) {
1633                                 $contact = $r[0];
1634                                 $contact["uid"] = -1;
1635                                 $contact["success_update"] = $contact["updated"];
1636                         }
1637                 }
1638
1639                 if (!$r)
1640                         $contact = owner;
1641
1642                 if (!isset($contact["poll"])) {
1643                         $data = probe_url($url);
1644                         $contact["poll"] = $data["poll"];
1645
1646                         if (!$contact["alias"])
1647                                 $contact["alias"] = $data["alias"];
1648                 }
1649
1650                 if (!isset($contact["alias"]))
1651                         $contact["alias"] = $contact["url"];
1652
1653                 return $contact;
1654         }
1655
1656         /**
1657          * @brief Adds an entry element with reshared content
1658          *
1659          * @param object $doc XML document
1660          * @param array $item Data of the item that is to be posted
1661          * @param array $owner Contact data of the poster
1662          * @param $repeated_guid
1663          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1664          *
1665          * @return object Entry element
1666          */
1667         private function reshare_entry($doc, $item, $owner, $repeated_guid, $toplevel) {
1668
1669                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1670                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1671                 }
1672
1673                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1674
1675                 $r = q("SELECT * FROM `item` WHERE `uid` = %d AND `guid` = '%s' AND NOT `private` AND `network` IN ('%s', '%s', '%s') LIMIT 1",
1676                         intval($owner["uid"]), dbesc($repeated_guid),
1677                         dbesc(NETWORK_DFRN), dbesc(NETWORK_DIASPORA), dbesc(NETWORK_OSTATUS));
1678                 if ($r)
1679                         $repeated_item = $r[0];
1680                 else
1681                         return false;
1682
1683                 $contact = self::contact_entry($repeated_item['author-link'], $owner);
1684
1685                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1686
1687                 $title = $owner["nick"]." repeated a notice by ".$contact["nick"];
1688
1689                 self::entry_content($doc, $entry, $item, $owner, $title, ACTIVITY_SHARE, false);
1690
1691                 $as_object = $doc->createElement("activity:object");
1692
1693                 xml::add_element($doc, $as_object, "activity:object-type", NAMESPACE_ACTIVITY_SCHEMA."activity");
1694
1695                 self::entry_content($doc, $as_object, $repeated_item, $owner, "", "", false);
1696
1697                 $author = self::add_author($doc, $contact);
1698                 $as_object->appendChild($author);
1699
1700                 $as_object2 = $doc->createElement("activity:object");
1701
1702                 xml::add_element($doc, $as_object2, "activity:object-type", self::construct_objecttype($repeated_item));
1703
1704                 $title = sprintf("New comment by %s", $contact["nick"]);
1705
1706                 self::entry_content($doc, $as_object2, $repeated_item, $owner, $title);
1707
1708                 $as_object->appendChild($as_object2);
1709
1710                 self::entry_footer($doc, $as_object, $item, $owner, false);
1711
1712                 $source = self::source_entry($doc, $contact);
1713
1714                 $as_object->appendChild($source);
1715
1716                 $entry->appendChild($as_object);
1717
1718                 self::entry_footer($doc, $entry, $item, $owner);
1719
1720                 return $entry;
1721         }
1722
1723         /**
1724          * @brief Adds an entry element with a "like"
1725          *
1726          * @param object $doc XML document
1727          * @param array $item Data of the item that is to be posted
1728          * @param array $owner Contact data of the poster
1729          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1730          *
1731          * @return object Entry element with "like"
1732          */
1733         private function like_entry($doc, $item, $owner, $toplevel) {
1734
1735                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1736                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1737                 }
1738
1739                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1740
1741                 $verb = NAMESPACE_ACTIVITY_SCHEMA."favorite";
1742                 self::entry_content($doc, $entry, $item, $owner, "Favorite", $verb, false);
1743
1744                 $as_object = $doc->createElement("activity:object");
1745
1746                 $parent = q("SELECT * FROM `item` WHERE `uri` = '%s' AND `uid` = %d",
1747                         dbesc($item["thr-parent"]), intval($item["uid"]));
1748                 $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1749
1750                 xml::add_element($doc, $as_object, "activity:object-type", self::construct_objecttype($parent[0]));
1751
1752                 self::entry_content($doc, $as_object, $parent[0], $owner, "New entry");
1753
1754                 $entry->appendChild($as_object);
1755
1756                 self::entry_footer($doc, $entry, $item, $owner);
1757
1758                 return $entry;
1759         }
1760
1761         /**
1762          * @brief Adds the person object element to the XML document
1763          *
1764          * @param object $doc XML document
1765          * @param array $owner Contact data of the poster
1766          * @param array $contact Contact data of the target
1767          *
1768          * @return object author element
1769          */
1770         private function add_person_object($doc, $owner, $contact) {
1771
1772                 $object = $doc->createElement("activity:object");
1773                 xml::add_element($doc, $object, "activity:object-type", ACTIVITY_OBJ_PERSON);
1774
1775                 if ($contact['network'] == NETWORK_PHANTOM) {
1776                         xml::add_element($doc, $object, "id", $contact['url']);
1777                         return $object;
1778                 }
1779
1780                 xml::add_element($doc, $object, "id", $contact["alias"]);
1781                 xml::add_element($doc, $object, "title", $contact["nick"]);
1782
1783                 $attributes = array("rel" => "alternate", "type" => "text/html", "href" => $contact["url"]);
1784                 xml::add_element($doc, $object, "link", "", $attributes);
1785
1786                 $attributes = array(
1787                                 "rel" => "avatar",
1788                                 "type" => "image/jpeg", // To-Do?
1789                                 "media:width" => 175,
1790                                 "media:height" => 175,
1791                                 "href" => $contact["photo"]);
1792                 xml::add_element($doc, $object, "link", "", $attributes);
1793
1794                 xml::add_element($doc, $object, "poco:preferredUsername", $contact["nick"]);
1795                 xml::add_element($doc, $object, "poco:displayName", $contact["name"]);
1796
1797                 if (trim($contact["location"]) != "") {
1798                         $element = $doc->createElement("poco:address");
1799                         xml::add_element($doc, $element, "poco:formatted", $contact["location"]);
1800                         $object->appendChild($element);
1801                 }
1802
1803                 return $object;
1804         }
1805
1806         /**
1807          * @brief Adds a follow/unfollow entry element
1808          *
1809          * @param object $doc XML document
1810          * @param array $item Data of the follow/unfollow message
1811          * @param array $owner Contact data of the poster
1812          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1813          *
1814          * @return object Entry element
1815          */
1816         private function follow_entry($doc, $item, $owner, $toplevel) {
1817
1818                 $item["id"] = $item["parent"] = 0;
1819                 $item["created"] = $item["edited"] = date("c");
1820                 $item["private"] = true;
1821
1822                 $contact = Probe::uri($item['follow']);
1823
1824                 if ($contact['alias'] == '') {
1825                         $contact['alias'] = $contact["url"];
1826                 } else {
1827                         $item['follow'] = $contact['alias'];
1828                 }
1829
1830                 $r = q("SELECT `id` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
1831                         intval($owner['uid']), dbesc(normalise_link($contact["url"])));
1832
1833                 if (dbm::is_result($r)) {
1834                         $connect_id = $r[0]['id'];
1835                 } else {
1836                         $connect_id = 0;
1837                 }
1838
1839                 if ($item['verb'] == ACTIVITY_FOLLOW) {
1840                         $message = t('%s is now following %s.');
1841                         $title = t('following');
1842                         $action = "subscription";
1843                 } else {
1844                         $message = t('%s stopped following %s.');
1845                         $title = t('stopped following');
1846                         $action = "unfollow";
1847                 }
1848
1849                 $item["uri"] = $item['parent-uri'] = $item['thr-parent'] =
1850                                 'tag:'.get_app()->get_hostname().
1851                                 ','.date('Y-m-d').':'.$action.':'.$owner['uid'].
1852                                 ':person:'.$connect_id.':'.$item['created'];
1853
1854                 $item["body"] = sprintf($message, $owner["nick"], $contact["nick"]);
1855
1856                 self::entry_header($doc, $entry, $owner, $toplevel);
1857
1858                 self::entry_content($doc, $entry, $item, $owner, $title);
1859
1860                 $object = self::add_person_object($doc, $owner, $contact);
1861                 $entry->appendChild($object);
1862
1863                 self::entry_footer($doc, $entry, $item, $owner);
1864
1865                 return $entry;
1866         }
1867
1868         /**
1869          * @brief Adds a regular entry element
1870          *
1871          * @param object $doc XML document
1872          * @param array $item Data of the item that is to be posted
1873          * @param array $owner Contact data of the poster
1874          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1875          *
1876          * @return object Entry element
1877          */
1878         private function note_entry($doc, $item, $owner, $toplevel) {
1879
1880                 if (($item["id"] != $item["parent"]) AND (normalise_link($item["author-link"]) != normalise_link($owner["url"]))) {
1881                         logger("OStatus entry is from author ".$owner["url"]." - not from ".$item["author-link"].". Quitting.", LOGGER_DEBUG);
1882                 }
1883
1884                 $title = self::entry_header($doc, $entry, $owner, $toplevel);
1885
1886                 xml::add_element($doc, $entry, "activity:object-type", ACTIVITY_OBJ_NOTE);
1887
1888                 self::entry_content($doc, $entry, $item, $owner, $title);
1889
1890                 self::entry_footer($doc, $entry, $item, $owner);
1891
1892                 return $entry;
1893         }
1894
1895         /**
1896          * @brief Adds a header element to the XML document
1897          *
1898          * @param object $doc XML document
1899          * @param object $entry The entry element where the elements are added
1900          * @param array $owner Contact data of the poster
1901          * @param bool $toplevel Is it for en entry element (false) or a feed entry (true)?
1902          *
1903          * @return string The title for the element
1904          */
1905         private function entry_header($doc, &$entry, $owner, $toplevel) {
1906                 /// @todo Check if this title stuff is really needed (I guess not)
1907                 if (!$toplevel) {
1908                         $entry = $doc->createElement("entry");
1909                         $title = sprintf("New note by %s", $owner["nick"]);
1910                 } else {
1911                         $entry = $doc->createElementNS(NAMESPACE_ATOM1, "entry");
1912
1913                         $entry->setAttribute("xmlns:thr", NAMESPACE_THREAD);
1914                         $entry->setAttribute("xmlns:georss", NAMESPACE_GEORSS);
1915                         $entry->setAttribute("xmlns:activity", NAMESPACE_ACTIVITY);
1916                         $entry->setAttribute("xmlns:media", NAMESPACE_MEDIA);
1917                         $entry->setAttribute("xmlns:poco", NAMESPACE_POCO);
1918                         $entry->setAttribute("xmlns:ostatus", NAMESPACE_OSTATUS);
1919                         $entry->setAttribute("xmlns:statusnet", NAMESPACE_STATUSNET);
1920
1921                         $author = self::add_author($doc, $owner);
1922                         $entry->appendChild($author);
1923
1924                         $title = sprintf("New comment by %s", $owner["nick"]);
1925                 }
1926                 return $title;
1927         }
1928
1929         /**
1930          * @brief Adds elements to the XML document
1931          *
1932          * @param object $doc XML document
1933          * @param object $entry Entry element where the content is added
1934          * @param array $item Data of the item that is to be posted
1935          * @param array $owner Contact data of the poster
1936          * @param string $title Title for the post
1937          * @param string $verb The activity verb
1938          * @param bool $complete Add the "status_net" element?
1939          */
1940         private function entry_content($doc, $entry, $item, $owner, $title, $verb = "", $complete = true) {
1941
1942                 if ($verb == "")
1943                         $verb = self::construct_verb($item);
1944
1945                 xml::add_element($doc, $entry, "id", $item["uri"]);
1946                 xml::add_element($doc, $entry, "title", $title);
1947
1948                 $body = self::format_picture_post($item['body']);
1949
1950                 if ($item['title'] != "")
1951                         $body = "[b]".$item['title']."[/b]\n\n".$body;
1952
1953                 $body = bbcode($body, false, false, 7);
1954
1955                 xml::add_element($doc, $entry, "content", $body, array("type" => "html"));
1956
1957                 xml::add_element($doc, $entry, "link", "", array("rel" => "alternate", "type" => "text/html",
1958                                                                 "href" => App::get_baseurl()."/display/".$item["guid"]));
1959
1960                 if ($complete AND ($item["id"] > 0))
1961                         xml::add_element($doc, $entry, "status_net", "", array("notice_id" => $item["id"]));
1962
1963                 xml::add_element($doc, $entry, "activity:verb", $verb);
1964
1965                 xml::add_element($doc, $entry, "published", datetime_convert("UTC","UTC",$item["created"]."+00:00",ATOM_TIME));
1966                 xml::add_element($doc, $entry, "updated", datetime_convert("UTC","UTC",$item["edited"]."+00:00",ATOM_TIME));
1967         }
1968
1969         /**
1970          * @brief Adds the elements at the foot of an entry to the XML document
1971          *
1972          * @param object $doc XML document
1973          * @param object $entry The entry element where the elements are added
1974          * @param array $item Data of the item that is to be posted
1975          * @param array $owner Contact data of the poster
1976          * @param $complete
1977          */
1978         private function entry_footer($doc, $entry, $item, $owner, $complete = true) {
1979
1980                 $mentioned = array();
1981
1982                 if (($item['parent'] != $item['id']) || ($item['parent-uri'] !== $item['uri']) || (($item['thr-parent'] !== '') && ($item['thr-parent'] !== $item['uri']))) {
1983                         $parent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `id` = %d", intval($item["parent"]));
1984                         $parent_item = (($item['thr-parent']) ? $item['thr-parent'] : $item['parent-uri']);
1985
1986                         $attributes = array(
1987                                         "ref" => $parent_item,
1988                                         "type" => "text/html",
1989                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1990                         xml::add_element($doc, $entry, "thr:in-reply-to", "", $attributes);
1991
1992                         $attributes = array(
1993                                         "rel" => "related",
1994                                         "href" => App::get_baseurl()."/display/".$parent[0]["guid"]);
1995                         xml::add_element($doc, $entry, "link", "", $attributes);
1996
1997                         $mentioned[$parent[0]["author-link"]] = $parent[0]["author-link"];
1998                         $mentioned[$parent[0]["owner-link"]] = $parent[0]["owner-link"];
1999
2000                         $thrparent = q("SELECT `guid`, `author-link`, `owner-link` FROM `item` WHERE `uid` = %d AND `uri` = '%s'",
2001                                         intval($owner["uid"]),
2002                                         dbesc($parent_item));
2003                         if ($thrparent) {
2004                                 $mentioned[$thrparent[0]["author-link"]] = $thrparent[0]["author-link"];
2005                                 $mentioned[$thrparent[0]["owner-link"]] = $thrparent[0]["owner-link"];
2006                         }
2007                 }
2008
2009                 if (intval($item["parent"]) > 0) {
2010                         $conversation = App::get_baseurl()."/display/".$owner["nick"]."/".$item["parent"];
2011                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:conversation", "href" => $conversation));
2012                         xml::add_element($doc, $entry, "ostatus:conversation", $conversation);
2013                 }
2014
2015                 $tags = item_getfeedtags($item);
2016
2017                 if(count($tags))
2018                         foreach($tags as $t)
2019                                 if ($t[0] == "@")
2020                                         $mentioned[$t[1]] = $t[1];
2021
2022                 // Make sure that mentions are accepted (GNU Social has problems with mixing HTTP and HTTPS)
2023                 $newmentions = array();
2024                 foreach ($mentioned AS $mention) {
2025                         $newmentions[str_replace("http://", "https://", $mention)] = str_replace("http://", "https://", $mention);
2026                         $newmentions[str_replace("https://", "http://", $mention)] = str_replace("https://", "http://", $mention);
2027                 }
2028                 $mentioned = $newmentions;
2029
2030                 foreach ($mentioned AS $mention) {
2031                         $r = q("SELECT `forum`, `prv` FROM `contact` WHERE `uid` = %d AND `nurl` = '%s'",
2032                                 intval($owner["uid"]),
2033                                 dbesc(normalise_link($mention)));
2034                         if ($r[0]["forum"] OR $r[0]["prv"])
2035                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
2036                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_GROUP,
2037                                                                                         "href" => $mention));
2038                         else
2039                                 xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
2040                                                                                         "ostatus:object-type" => ACTIVITY_OBJ_PERSON,
2041                                                                                         "href" => $mention));
2042                 }
2043
2044                 if (!$item["private"]) {
2045                         xml::add_element($doc, $entry, "link", "", array("rel" => "ostatus:attention",
2046                                                                         "href" => "http://activityschema.org/collection/public"));
2047                         xml::add_element($doc, $entry, "link", "", array("rel" => "mentioned",
2048                                                                         "ostatus:object-type" => "http://activitystrea.ms/schema/1.0/collection",
2049                                                                         "href" => "http://activityschema.org/collection/public"));
2050                 }
2051
2052                 if(count($tags))
2053                         foreach($tags as $t)
2054                                 if ($t[0] != "@")
2055                                         xml::add_element($doc, $entry, "category", "", array("term" => $t[2]));
2056
2057                 self::get_attachment($doc, $entry, $item);
2058
2059                 if ($complete AND ($item["id"] > 0)) {
2060                         $app = $item["app"];
2061                         if ($app == "")
2062                                 $app = "web";
2063
2064                         $attributes = array("local_id" => $item["id"], "source" => $app);
2065
2066                         if (isset($parent["id"]))
2067                                 $attributes["repeat_of"] = $parent["id"];
2068
2069                         if ($item["coord"] != "")
2070                                 xml::add_element($doc, $entry, "georss:point", $item["coord"]);
2071
2072                         xml::add_element($doc, $entry, "statusnet:notice_info", "", $attributes);
2073                 }
2074         }
2075
2076         /**
2077          * @brief Creates the XML feed for a given nickname
2078          *
2079          * @param app $a The application class
2080          * @param string $owner_nick Nickname of the feed owner
2081          * @param string $last_update Date of the last update
2082          *
2083          * @return string XML feed
2084          */
2085         public static function feed(App $a, $owner_nick, $last_update) {
2086
2087                 $r = q("SELECT `contact`.*, `user`.`nickname`, `user`.`timezone`, `user`.`page-flags`
2088                                 FROM `contact` INNER JOIN `user` ON `user`.`uid` = `contact`.`uid`
2089                                 WHERE `contact`.`self` AND `user`.`nickname` = '%s' LIMIT 1",
2090                                 dbesc($owner_nick));
2091                 if (!$r)
2092                         return;
2093
2094                 $owner = $r[0];
2095
2096                 if(!strlen($last_update))
2097                         $last_update = 'now -30 days';
2098
2099                 $check_date = datetime_convert('UTC','UTC',$last_update,'Y-m-d H:i:s');
2100                 $authorid = get_contact($owner["url"], 0);
2101
2102                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item` USE INDEX (`uid_contactid_created`)
2103                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
2104                                 WHERE `item`.`uid` = %d AND `item`.`contact-id` = %d AND
2105                                         `item`.`author-id` = %d AND `item`.`created` > '%s' AND
2106                                         NOT `item`.`deleted` AND NOT `item`.`private` AND
2107                                         `thread`.`network` IN ('%s', '%s')
2108                                 ORDER BY `item`.`created` DESC LIMIT 300",
2109                                 intval($owner["uid"]), intval($owner["id"]),
2110                                 intval($authorid), dbesc($check_date),
2111                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN));
2112
2113 /*              2016-10-23: The old query will be kept until we are sure that the query above is a good and fast replacement
2114
2115                 $items = q("SELECT `item`.*, `item`.`id` AS `item_id` FROM `item`
2116                                 STRAIGHT_JOIN `thread` ON `thread`.`iid` = `item`.`parent`
2117                                 LEFT JOIN `item` AS `thritem` ON `thritem`.`uri`=`item`.`thr-parent` AND `thritem`.`uid`=`item`.`uid`
2118                                 WHERE `item`.`uid` = %d AND `item`.`received` > '%s' AND NOT `item`.`private` AND NOT `item`.`deleted`
2119                                         AND `item`.`allow_cid` = '' AND `item`.`allow_gid` = '' AND `item`.`deny_cid`  = '' AND `item`.`deny_gid`  = ''
2120                                         AND ((`item`.`wall` AND (`item`.`parent` = `item`.`id`))
2121                                                 OR (`item`.`network` = '%s' AND ((`thread`.`network` IN ('%s', '%s')) OR (`thritem`.`network` IN ('%s', '%s')))) AND `thread`.`mention`)
2122                                         AND ((`item`.`owner-link` IN ('%s', '%s') AND (`item`.`parent` = `item`.`id`))
2123                                                 OR (`item`.`author-link` IN ('%s', '%s')))
2124                                 ORDER BY `item`.`id` DESC
2125                                 LIMIT 0, 300",
2126                                 intval($owner["uid"]), dbesc($check_date), dbesc(NETWORK_DFRN),
2127                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
2128                                 //dbesc(NETWORK_OSTATUS), dbesc(NETWORK_OSTATUS),
2129                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
2130                                 dbesc(NETWORK_OSTATUS), dbesc(NETWORK_DFRN),
2131                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"])),
2132                                 dbesc($owner["nurl"]), dbesc(str_replace("http://", "https://", $owner["nurl"]))
2133                         );
2134 */
2135                 $doc = new DOMDocument('1.0', 'utf-8');
2136                 $doc->formatOutput = true;
2137
2138                 $root = self::add_header($doc, $owner);
2139
2140                 foreach ($items AS $item) {
2141                         $entry = self::entry($doc, $item, $owner);
2142                         $root->appendChild($entry);
2143                 }
2144
2145                 return(trim($doc->saveXML()));
2146         }
2147
2148         /**
2149          * @brief Creates the XML for a salmon message
2150          *
2151          * @param array $item Data of the item that is to be posted
2152          * @param array $owner Contact data of the poster
2153          *
2154          * @return string XML for the salmon
2155          */
2156         public static function salmon($item,$owner) {
2157
2158                 $doc = new DOMDocument('1.0', 'utf-8');
2159                 $doc->formatOutput = true;
2160
2161                 $entry = self::entry($doc, $item, $owner, true);
2162
2163                 $doc->appendChild($entry);
2164
2165                 return(trim($doc->saveXML()));
2166         }
2167 }
2168 ?>