include/ostatus.php

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