include/diaspora2.php

   1 <?php
   2 /**
   3  * @file include/diaspora.php
   4  * @brief The implementation of the diaspora protocol
   5  */
   6
   7 require_once("include/bb2diaspora.php");
   8 require_once("include/Scrape.php");
   9 require_once("include/Contact.php");
  10 require_once("include/Photo.php");
  11 require_once("include/socgraph.php");
  12
  13 class xml {
  14         function from_array($array, &$xml) {
  15
  16                 if (!is_object($xml)) {
  17                         foreach($array as $key => $value) {
  18                                 $root = new SimpleXMLElement('<'.$key.'/>');
  19                                 array_to_xml($value, $root);
  20
  21                                 $dom = dom_import_simplexml($root)->ownerDocument;
  22                                 $dom->formatOutput = true;
  23                                 return $dom->saveXML();
  24                         }
  25                 }
  26
  27                 foreach($array as $key => $value) {
  28                         if (!is_array($value) AND !is_numeric($key))
  29                                 $xml->addChild($key, $value);
  30                         elseif (is_array($value))
  31                                 array_to_xml($value, $xml->addChild($key));
  32                 }
  33         }
  34
  35         function copy(&$source, &$target, $elementname) {
  36                 if (count($source->children()) == 0)
  37                         $target->addChild($elementname, $source);
  38                 else {
  39                         $child = $target->addChild($elementname);
  40                         foreach ($source->children() AS $childfield => $childentry)
  41                                 self::copy($childentry, $child, $childfield);
  42                 }
  43         }
  44 }
  45 /**
  46  * @brief This class contain functions to create and send Diaspora XML files
  47  *
  48  */
  49 class diaspora {
  50
  51         public static function dispatch_public($msg) {
  52
  53                 $enabled = intval(get_config("system", "diaspora_enabled"));
  54                 if (!$enabled) {
  55                         logger("diaspora is disabled");
  56                         return false;
  57                 }
  58
  59                 // Use a dummy importer to import the data for the public copy
  60                 $importer = array("uid" => 0, "page-flags" => PAGE_FREELOVE);
  61                 $item_id = self::dispatch($importer,$msg);
  62
  63                 // Now distribute it to the followers
  64                 $r = q("SELECT `user`.* FROM `user` WHERE `user`.`uid` IN
  65                         (SELECT `contact`.`uid` FROM `contact` WHERE `contact`.`network` = '%s' AND `contact`.`addr` = '%s')
  66                         AND NOT `account_expired` AND NOT `account_removed`",
  67                         dbesc(NETWORK_DIASPORA),
  68                         dbesc($msg["author"])
  69                 );
  70                 if(count($r)) {
  71                         foreach($r as $rr) {
  72                                 logger("delivering to: ".$rr["username"]);
  73                                 self::dispatch($rr,$msg);
  74                         }
  75                 } else
  76                         logger("No subscribers for ".$msg["author"]." ".print_r($msg, true));
  77
  78                 return $item_id;
  79         }
  80
  81         public static function dispatch($importer, $msg) {
  82
  83                 // The sender is the handle of the contact that sent the message.
  84                 // This will often be different with relayed messages (for example "like" and "comment")
  85                 $sender = $msg["author"];
  86
  87                 if (!diaspora::valid_posting($msg, $fields)) {
  88                         logger("Invalid posting");
  89                         return false;
  90                 }
  91
  92                 $type = $fields->getName();
  93
  94                 switch ($type) {
  95                         case "account_deletion":
  96                                 return true;
  97                                 //return self::import_account_deletion($importer, $fields);
  98
  99                         case "comment":
 100                                 return true;
 101                                 //return self::import_comment($importer, $sender, $fields);
 102
 103                         case "conversation":
 104                                 return self::import_conversation($importer, $fields);
 105
 106                         case "like":
 107                                 return true;
 108                                 //return self::import_like($importer, $sender, $fields);
 109
 110                         case "message":
 111                                 return true;
 112                                 //return self::import_message($importer, $fields);
 113
 114                         case "participation": // Not implemented
 115                                 return self::import_participation($importer, $fields);
 116
 117                         case "photo":
 118                                 return self::import_photo($importer, $fields);
 119
 120                         case "poll_participation": // Not implemented
 121                                 return self::import_poll_participation($importer, $fields);
 122
 123                         case "profile":
 124                                 return true;
 125                                 //return self::import_profile($importer, $fields);
 126
 127                         case "request":
 128                                 return self::import_request($importer, $fields);
 129
 130                         case "reshare":
 131                                 return self::import_reshare($importer, $fields);
 132
 133                         case "retraction":
 134                                 return self::import_retraction($importer, $fields);
 135
 136                         case "status_message":
 137                                 return true;
 138                                 //return self::import_status_message($importer, $fields, $msg, $data2);
 139
 140                         default:
 141                                 logger("Unknown message type ".$type);
 142                                 return false;
 143                 }
 144
 145                 return true;
 146         }
 147
 148         /**
 149          * @brief Checks if a posting is valid and fetches the data fields.
 150          *
 151          * This function does not only check the signature.
 152          * It also does the conversion between the old and the new diaspora format.
 153          *
 154          * @param array $msg Array with the XML, the sender handle and the sender signature
 155          * @param object $fields SimpleXML object that contains the posting when it is valid
 156          *
 157          * @return bool Is the posting valid?
 158          */
 159         private function valid_posting($msg, &$fields) {
 160
 161                 $data = parse_xml_string($msg["message"], false);
 162
 163                 if (!is_object($data))
 164                         return false;
 165
 166                 $first_child = $data->getName();
 167
 168                 // Is this the new or the old version?
 169                 if ($data->getName() == "XML") {
 170                         $oldXML = true;
 171                         foreach ($data->post->children() as $child)
 172                                 $element = $child;
 173                 } else {
 174                         $oldXML = false;
 175                         $element = $data;
 176                 }
 177
 178                 $type = $element->getName();
 179
 180                 // All retractions are handled identically from now on.
 181                 // In the new version there will only be "retraction".
 182                 if (in_array($type, array("signed_retraction", "relayable_retraction")))
 183                         $type = "retraction";
 184
 185                 $fields = new SimpleXMLElement("<".$type."/>");
 186
 187                 $signed_data = "";
 188
 189                 foreach ($element->children() AS $fieldname => $entry) {
 190                         if ($oldXML) {
 191                                 // Translation for the old XML structure
 192                                 if ($fieldname == "diaspora_handle")
 193                                         $fieldname = "author";
 194
 195                                 if ($fieldname == "participant_handles")
 196                                         $fieldname = "participants";
 197
 198                                 if (in_array($type, array("like", "participation"))) {
 199                                         if ($fieldname == "target_type")
 200                                                 $fieldname = "parent_type";
 201                                 }
 202
 203                                 if ($fieldname == "sender_handle")
 204                                         $fieldname = "author";
 205
 206                                 if ($fieldname == "recipient_handle")
 207                                         $fieldname = "recipient";
 208
 209                                 if ($fieldname == "root_diaspora_id")
 210                                         $fieldname = "root_author";
 211
 212                                 if ($type == "retraction") {
 213                                         if ($fieldname == "post_guid")
 214                                                 $fieldname = "target_guid";
 215
 216                                         if ($fieldname == "type")
 217                                                 $fieldname = "target_type";
 218                                 }
 219                         }
 220
 221                         if ($fieldname == "author_signature")
 222                                 $author_signature = base64_decode($entry);
 223                         elseif ($fieldname == "parent_author_signature")
 224                                 $parent_author_signature = base64_decode($entry);
 225                         elseif ($fieldname != "target_author_signature") {
 226                                 if ($signed_data != "") {
 227                                         $signed_data .= ";";
 228                                         $signed_data_parent .= ";";
 229                                 }
 230
 231                                 $signed_data .= $entry;
 232                         }
 233                         if (!in_array($fieldname, array("parent_author_signature", "target_author_signature")))
 234                                 xml::copy($entry, $fields, $fieldname);
 235                 }
 236
 237                 // This is something that shouldn't happen at all.
 238                 if (in_array($type, array("status_message", "reshare", "profile")))
 239                         if ($msg["author"] != $fields->author) {
 240                                 logger("Message handle is not the same as envelope sender. Quitting this message.");
 241                                 return false;
 242                         }
 243
 244                 // Only some message types have signatures. So we quit here for the other types.
 245                 if (!in_array($type, array("comment", "conversation", "message", "like")))
 246                         return true;
 247
 248                 // No author_signature? This is a must, so we quit.
 249                 if (!isset($author_signature))
 250                         return false;
 251
 252                 if (isset($parent_author_signature)) {
 253                         $key = self::get_key($msg["author"]);
 254
 255                         if (!rsa_verify($signed_data, $parent_author_signature, $key, "sha256"))
 256                                 return false;
 257                 }
 258
 259                 $key = self::get_key($fields->author);
 260
 261                 return rsa_verify($signed_data, $author_signature, $key, "sha256");
 262         }
 263
 264         private function get_key($handle) {
 265                 logger("Fetching diaspora key for: ".$handle);
 266
 267                 $r = self::get_person_by_handle($handle);
 268                 if($r)
 269                         return $r["pubkey"];
 270
 271                 return "";
 272         }
 273
 274         private function get_person_by_handle($handle) {
 275
 276                 $r = q("SELECT * FROM `fcontact` WHERE `network` = '%s' AND `addr` = '%s' LIMIT 1",
 277                         dbesc(NETWORK_DIASPORA),
 278                         dbesc($handle)
 279                 );
 280                 if (count($r)) {
 281                         $person = $r[0];
 282                         logger("In cache ".print_r($r,true), LOGGER_DEBUG);
 283
 284                         // update record occasionally so it doesn't get stale
 285                         $d = strtotime($person["updated"]." +00:00");
 286                         if ($d < strtotime("now - 14 days"))
 287                                 $update = true;
 288                 }
 289
 290                 if (!$person OR $update) {
 291                         logger("create or refresh", LOGGER_DEBUG);
 292                         $r = probe_url($handle, PROBE_DIASPORA);
 293
 294                         // Note that Friendica contacts will return a "Diaspora person"
 295                         // if Diaspora connectivity is enabled on their server
 296                         if (count($r) AND ($r["network"] === NETWORK_DIASPORA)) {
 297                                 self::add_fcontact($r, $update);
 298                                 $person = $r;
 299                         }
 300                 }
 301                 return $person;
 302         }
 303
 304         private function add_fcontact($arr, $update = false) {
 305                 /// @todo Remove this function from include/network.php
 306
 307                 if($update) {
 308                         $r = q("UPDATE `fcontact` SET
 309                                         `name` = '%s',
 310                                         `photo` = '%s',
 311                                         `request` = '%s',
 312                                         `nick` = '%s',
 313                                         `addr` = '%s',
 314                                         `batch` = '%s',
 315                                         `notify` = '%s',
 316                                         `poll` = '%s',
 317                                         `confirm` = '%s',
 318                                         `alias` = '%s',
 319                                         `pubkey` = '%s',
 320                                         `updated` = '%s'
 321                                 WHERE `url` = '%s' AND `network` = '%s'",
 322                                         dbesc($arr["name"]),
 323                                         dbesc($arr["photo"]),
 324                                         dbesc($arr["request"]),
 325                                         dbesc($arr["nick"]),
 326                                         dbesc($arr["addr"]),
 327                                         dbesc($arr["batch"]),
 328                                         dbesc($arr["notify"]),
 329                                         dbesc($arr["poll"]),
 330                                         dbesc($arr["confirm"]),
 331                                         dbesc($arr["alias"]),
 332                                         dbesc($arr["pubkey"]),
 333                                         dbesc(datetime_convert()),
 334                                         dbesc($arr["url"]),
 335                                         dbesc($arr["network"])
 336                                 );
 337                 } else {
 338                         $r = q("INSERT INTO `fcontact` (`url`,`name`,`photo`,`request`,`nick`,`addr`,
 339                                         `batch`, `notify`,`poll`,`confirm`,`network`,`alias`,`pubkey`,`updated`)
 340                                 VALUES ('%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s','%s')",
 341                                         dbesc($arr["url"]),
 342                                         dbesc($arr["name"]),
 343                                         dbesc($arr["photo"]),
 344                                         dbesc($arr["request"]),
 345                                         dbesc($arr["nick"]),
 346                                         dbesc($arr["addr"]),
 347                                         dbesc($arr["batch"]),
 348                                         dbesc($arr["notify"]),
 349                                         dbesc($arr["poll"]),
 350                                         dbesc($arr["confirm"]),
 351                                         dbesc($arr["network"]),
 352                                         dbesc($arr["alias"]),
 353                                         dbesc($arr["pubkey"]),
 354                                         dbesc(datetime_convert())
 355                                 );
 356                 }
 357
 358                 return $r;
 359         }
 360
 361         private function get_contact_by_handle($uid, $handle) {
 362                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `addr` = '%s' LIMIT 1",
 363                         intval($uid),
 364                         dbesc($handle)
 365                 );
 366
 367                 if ($r AND count($r))
 368                         return $r[0];
 369
 370                 $handle_parts = explode("@", $handle);
 371                 $nurl_sql = '%%://' . $handle_parts[1] . '%%/profile/' . $handle_parts[0];
 372                 $r = q("SELECT * FROM `contact` WHERE `network` = '%s' AND `uid` = %d AND `nurl` LIKE '%s' LIMIT 1",
 373                         dbesc(NETWORK_DFRN),
 374                         intval($uid),
 375                         dbesc($nurl_sql)
 376                 );
 377                 if($r AND count($r))
 378                         return $r[0];
 379
 380                 return false;
 381         }
 382
 383         private function fetch_guid($item) {
 384                 preg_replace_callback("&\[url=/posts/([^\[\]]*)\](.*)\[\/url\]&Usi",
 385                         function ($match) use ($item){
 386                                 return(self::fetch_guid_sub($match, $item));
 387                         },$item["body"]);
 388         }
 389
 390         private function fetch_guid_sub($match, $item) {
 391                 $a = get_app();
 392
 393                 if (!self::store_by_guid($match[1], $item["author-link"]))
 394                         self::store_by_guid($match[1], $item["owner-link"]);
 395         }
 396
 397         private function store_by_guid($guid, $server, $uid = 0) {
 398                 $serverparts = parse_url($server);
 399                 $server = $serverparts["scheme"]."://".$serverparts["host"];
 400
 401                 logger("Trying to fetch item ".$guid." from ".$server, LOGGER_DEBUG);
 402
 403                 $msg = self::fetch_message($guid, $server);
 404
 405                 if (!$msg)
 406                         return false;
 407
 408                 logger("Successfully fetched item ".$guid." from ".$server, LOGGER_DEBUG);
 409
 410                 // Now call the dispatcher
 411                 return self::dispatch_public($msg);
 412         }
 413
 414         private function fetch_message($guid, $server, $level = 0) {
 415
 416                 if ($level > 5)
 417                         return false;
 418
 419                 // This will not work if the server is not a Diaspora server
 420                 $source_url = $server."/p/".$guid.".xml";
 421                 $x = fetch_url($source_url);
 422                 if(!$x)
 423                         return false;
 424
 425                 /// @todo - should maybe solved by the dispatcher
 426                 $source_xml = parse_xml_string($x, false);
 427
 428                 if (!is_object($source_xml))
 429                         return false;
 430
 431                 if ($source_xml->post->reshare) {
 432                         // Reshare of a reshare - old Diaspora version
 433                         return self::fetch_message($source_xml->post->reshare->root_guid, $server, ++$level);
 434                 } elseif ($source_xml->getName() == "reshare") {
 435                         // Reshare of a reshare - new Diaspora version
 436                         return self::fetch_message($source_xml->root_guid, $server, ++$level);
 437                 }
 438
 439                 // Fetch the author - for the old and the new Diaspora version
 440                 if ($source_xml->post->status_message->diaspora_handle)
 441                         $author = (string)$source_xml->post->status_message->diaspora_handle;
 442                 elseif ($source_xml->author)
 443                         $author = (string)$source_xml->author;
 444
 445                 if (!$author)
 446                         return false;
 447
 448                 $msg = array("message" => $x, "author" => $author);
 449
 450                 // We don't really need this, but until the work is unfinished we better will keep this
 451                 $msg["key"] = self::get_key($msg["author"]);
 452
 453                 return $msg;
 454         }
 455
 456         private function post_allow($importer, $contact, $is_comment = false) {
 457
 458                 // perhaps we were already sharing with this person. Now they're sharing with us.
 459                 // That makes us friends.
 460                 // Normally this should have handled by getting a request - but this could get lost
 461                 if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
 462                         q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
 463                                 intval(CONTACT_IS_FRIEND),
 464                                 intval($contact["id"]),
 465                                 intval($importer["uid"])
 466                         );
 467                         $contact["rel"] = CONTACT_IS_FRIEND;
 468                         logger("defining user ".$contact["nick"]." as friend");
 469                 }
 470
 471                 if(($contact["blocked"]) || ($contact["readonly"]) || ($contact["archive"]))
 472                         return false;
 473                 if($contact["rel"] == CONTACT_IS_SHARING || $contact["rel"] == CONTACT_IS_FRIEND)
 474                         return true;
 475                 if($contact["rel"] == CONTACT_IS_FOLLOWER)
 476                         if(($importer["page-flags"] == PAGE_COMMUNITY) OR $is_comment)
 477                                 return true;
 478
 479                 // Messages for the global users are always accepted
 480                 if ($importer["uid"] == 0)
 481                         return true;
 482
 483                 return false;
 484         }
 485
 486         private function fetch_parent_item($uid, $guid, $author, $contact) {
 487                 $r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
 488                                 `author-name`, `author-link`, `author-avatar`,
 489                                 `owner-name`, `owner-link`, `owner-avatar`
 490                         FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
 491                         intval($uid), dbesc($guid));
 492
 493                 if(!count($r)) {
 494                         $result = self::store_by_guid($guid, $contact["url"], $uid);
 495
 496                         if (!$result) {
 497                                 $person = self::get_person_by_handle($author);
 498                                 $result = self::store_by_guid($guid, $person["url"], $uid);
 499                         }
 500
 501                         if ($result) {
 502                                 logger("Fetched missing item ".$guid." - result: ".$result, LOGGER_DEBUG);
 503
 504                                 $r = q("SELECT `id`, `body`, `wall`, `uri`, `private`, `origin`,
 505                                                 `author-name`, `author-link`, `author-avatar`,
 506                                                 `owner-name`, `owner-link`, `owner-avatar`
 507                                         FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
 508                                         intval($uid), dbesc($guid));
 509                         }
 510                 }
 511
 512                 if (!count($r)) {
 513                         logger("parent item not found: parent: ".$guid." item: ".$guid);
 514                         return false;
 515                 } else
 516                         return $r[0];
 517         }
 518
 519         private function get_author_contact_by_url($contact, $person, $uid) {
 520
 521                 $r = q("SELECT `id`, `network` FROM `contact` WHERE `nurl` = '%s' AND `uid` = %d LIMIT 1",
 522                         dbesc(normalise_link($person["url"])), intval($uid));
 523                 if ($r) {
 524                         $cid = $r[0]["id"];
 525                         $network = $r[0]["network"];
 526                 } else {
 527                         $cid = $contact["id"];
 528                         $network = NETWORK_DIASPORA;
 529                 }
 530
 531                 return (array("cid" => $cid, "network" => $network));
 532         }
 533
 534         public static function is_redmatrix($url) {
 535                 return(strstr($url, "/channel/"));
 536         }
 537
 538         private function plink($addr, $guid) {
 539                 $r = q("SELECT `url`, `nick`, `network` FROM `fcontact` WHERE `addr`='%s' LIMIT 1", dbesc($addr));
 540
 541                 // Fallback
 542                 if (!$r)
 543                         return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
 544
 545                 // Friendica contacts are often detected as Diaspora contacts in the "fcontact" table
 546                 // So we try another way as well.
 547                 $s = q("SELECT `network` FROM `gcontact` WHERE `nurl`='%s' LIMIT 1", dbesc(normalise_link($r[0]["url"])));
 548                 if ($s)
 549                         $r[0]["network"] = $s[0]["network"];
 550
 551                 if ($r[0]["network"] == NETWORK_DFRN)
 552                         return(str_replace("/profile/".$r[0]["nick"]."/", "/display/".$guid, $r[0]["url"]."/"));
 553
 554                 if (self::is_redmatrix($r[0]["url"]))
 555                         return $r[0]["url"]."/?f=&mid=".$guid;
 556
 557                 return "https://".substr($addr,strpos($addr,"@")+1)."/posts/".$guid;
 558         }
 559
 560         private function import_account_deletion($importer, $data) {
 561                 $author = notags(unxmlify($data->author));
 562
 563                 $contact = self::get_contact_by_handle($importer["uid"], $author);
 564                 if (!$contact) {
 565                         logger("cannot find contact for sender: ".$sender);
 566                         return false;
 567                 }
 568
 569                 // We now remove the contact
 570                 contact_remove($contact["id"]);
 571                 return true;
 572         }
 573
 574         private function import_comment($importer, $sender, $data) {
 575                 $guid = notags(unxmlify($data->guid));
 576                 $parent_guid = notags(unxmlify($data->parent_guid));
 577                 $text = unxmlify($data->text);
 578                 $author = notags(unxmlify($data->author));
 579
 580                 $contact = self::get_contact_by_handle($importer["uid"], $sender);
 581                 if (!$contact) {
 582                         logger("cannot find contact for sender: ".$sender);
 583                         return false;
 584                 }
 585
 586                 if (!self::post_allow($importer,$contact, true)) {
 587                         logger("Ignoring the author ".$sender);
 588                         return false;
 589                 }
 590
 591                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
 592                         intval($importer["uid"]),
 593                         dbesc($guid)
 594                 );
 595                 if(count($r)) {
 596                         logger("The comment already exists: ".$guid);
 597                         return false;
 598                 }
 599
 600                 $parent_item = self::fetch_parent_item($importer["uid"], $parent_guid, $author, $contact);
 601                 if (!$parent_item)
 602                         return false;
 603
 604                 $person = self::get_person_by_handle($author);
 605                 if (!is_array($person)) {
 606                         logger("unable to find author details");
 607                         return false;
 608                 }
 609
 610                 // Fetch the contact id - if we know this contact
 611                 $author_contact = self::get_author_contact_by_url($contact, $person, $importer["uid"]);
 612
 613                 $datarray = array();
 614
 615                 $datarray["uid"] = $importer["uid"];
 616                 $datarray["contact-id"] = $author_contact["cid"];
 617                 $datarray["network"]  = $author_contact["network"];
 618
 619                 $datarray["author-name"] = $person["name"];
 620                 $datarray["author-link"] = $person["url"];
 621                 $datarray["author-avatar"] = ((x($person,"thumb")) ? $person["thumb"] : $person["photo"]);
 622
 623                 $datarray["owner-name"] = $contact["name"];
 624                 $datarray["owner-link"] = $contact["url"];
 625                 $datarray["owner-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
 626
 627                 $datarray["guid"] = $guid;
 628                 $datarray["uri"] = $author.":".$guid;
 629
 630                 $datarray["type"] = "remote-comment";
 631                 $datarray["verb"] = ACTIVITY_POST;
 632                 $datarray["gravity"] = GRAVITY_COMMENT;
 633                 $datarray["parent-uri"] = $parent_item["uri"];
 634
 635                 $datarray["object-type"] = ACTIVITY_OBJ_COMMENT;
 636                 $datarray["object"] = json_encode($data);
 637
 638                 $datarray["body"] = diaspora2bb($text);
 639
 640                 self::fetch_guid($datarray);
 641
 642                 $message_id = item_store($datarray);
 643                 // print_r($datarray);
 644
 645                 // If we are the origin of the parent we store the original data and notify our followers
 646                 if($message_id AND $parent_item["origin"]) {
 647
 648                         // Formerly we stored the signed text, the signature and the author in different fields.
 649                         // The new Diaspora protocol can have variable fields. We now store the data in correct order in a single field.
 650                         q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
 651                                 intval($message_id),
 652                                 dbesc(json_encode($data))
 653                         );
 654
 655                         // notify others
 656                         proc_run("php", "include/notifier.php", "comment-import", $message_id);
 657                 }
 658
 659                 return $message_id;
 660         }
 661
 662         private function import_conversation($importer, $data) {
 663 /*
 664         $guid = notags(unxmlify($xml->guid));
 665         $subject = notags(unxmlify($xml->subject));
 666         $diaspora_handle = notags(unxmlify($xml->diaspora_handle));
 667         $participant_handles = notags(unxmlify($xml->participant_handles));
 668         $created_at = datetime_convert('UTC','UTC',notags(unxmlify($xml->created_at)));
 669
 670         $parent_uri = $diaspora_handle . ':' . $guid;
 671
 672         $messages = $xml->message;
 673
 674         if(! count($messages)) {
 675                 logger('diaspora_conversation: empty conversation');
 676                 return;
 677         }
 678
 679         $contact = diaspora_get_contact_by_handle($importer['uid'],$msg['author']);
 680         if(! $contact) {
 681                 logger('diaspora_conversation: cannot find contact: ' . $msg['author']);
 682                 return;
 683         }
 684
 685         if(($contact['rel'] == CONTACT_IS_FOLLOWER) || ($contact['blocked']) || ($contact['readonly'])) {
 686                 logger('diaspora_conversation: Ignoring this author.');
 687                 return 202;
 688         }
 689
 690         $conversation = null;
 691
 692         $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
 693                 intval($importer['uid']),
 694                 dbesc($guid)
 695         );
 696         if(count($c))
 697                 $conversation = $c[0];
 698         else {
 699                 $r = q("insert into conv (uid,guid,creator,created,updated,subject,recips) values(%d, '%s', '%s', '%s', '%s', '%s', '%s') ",
 700                         intval($importer['uid']),
 701                         dbesc($guid),
 702                         dbesc($diaspora_handle),
 703                         dbesc(datetime_convert('UTC','UTC',$created_at)),
 704                         dbesc(datetime_convert()),
 705                         dbesc($subject),
 706                         dbesc($participant_handles)
 707                 );
 708                 if($r)
 709                         $c = q("select * from conv where uid = %d and guid = '%s' limit 1",
 710                 intval($importer['uid']),
 711             dbesc($guid)
 712         );
 713             if(count($c))
 714             $conversation = $c[0];
 715         }
 716         if(! $conversation) {
 717                 logger('diaspora_conversation: unable to create conversation.');
 718                 return;
 719         }
 720
 721         foreach($messages as $mesg) {
 722
 723                 $reply = 0;
 724
 725                 $msg_guid = notags(unxmlify($mesg->guid));
 726                 $msg_parent_guid = notags(unxmlify($mesg->parent_guid));
 727                 $msg_parent_author_signature = notags(unxmlify($mesg->parent_author_signature));
 728                 $msg_author_signature = notags(unxmlify($mesg->author_signature));
 729                 $msg_text = unxmlify($mesg->text);
 730                 $msg_created_at = datetime_convert('UTC','UTC',notags(unxmlify($mesg->created_at)));
 731                 $msg_diaspora_handle = notags(unxmlify($mesg->diaspora_handle));
 732                 $msg_conversation_guid = notags(unxmlify($mesg->conversation_guid));
 733                 if($msg_conversation_guid != $guid) {
 734                         logger('diaspora_conversation: message conversation guid does not belong to the current conversation. ' . $xml);
 735                         continue;
 736                 }
 737
 738                 $body = diaspora2bb($msg_text);
 739                 $message_id = $msg_diaspora_handle . ':' . $msg_guid;
 740
 741                 $author_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
 742
 743                 $author_signature = base64_decode($msg_author_signature);
 744
 745                 if(strcasecmp($msg_diaspora_handle,$msg['author']) == 0) {
 746                         $person = $contact;
 747                         $key = $msg['key'];
 748                 }
 749                 else {
 750                         $person = find_diaspora_person_by_handle($msg_diaspora_handle);
 751
 752                         if(is_array($person) && x($person,'pubkey'))
 753                                 $key = $person['pubkey'];
 754                         else {
 755                                 logger('diaspora_conversation: unable to find author details');
 756                                 continue;
 757                         }
 758                 }
 759
 760                 if(! rsa_verify($author_signed_data,$author_signature,$key,'sha256')) {
 761                         logger('diaspora_conversation: verification failed.');
 762                         continue;
 763                 }
 764
 765                 if($msg_parent_author_signature) {
 766                         $owner_signed_data = $msg_guid . ';' . $msg_parent_guid . ';' . $msg_text . ';' . unxmlify($mesg->created_at) . ';' . $msg_diaspora_handle . ';' . $msg_conversation_guid;
 767
 768                         $parent_author_signature = base64_decode($msg_parent_author_signature);
 769
 770                         $key = $msg['key'];
 771
 772                         if(! rsa_verify($owner_signed_data,$parent_author_signature,$key,'sha256')) {
 773                                 logger('diaspora_conversation: owner verification failed.');
 774                                 continue;
 775                         }
 776                 }
 777
 778                 $r = q("select id from mail where `uri` = '%s' limit 1",
 779                         dbesc($message_id)
 780                 );
 781                 if(count($r)) {
 782                         logger('diaspora_conversation: duplicate message already delivered.', LOGGER_DEBUG);
 783                         continue;
 784                 }
 785
 786                 q("insert into mail ( `uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`) values ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
 787                         intval($importer['uid']),
 788                         dbesc($msg_guid),
 789                         intval($conversation['id']),
 790                         dbesc($person['name']),
 791                         dbesc($person['photo']),
 792                         dbesc($person['url']),
 793                         intval($contact['id']),
 794                         dbesc($subject),
 795                         dbesc($body),
 796                         0,
 797                         0,
 798                         dbesc($message_id),
 799                         dbesc($parent_uri),
 800                         dbesc($msg_created_at)
 801                 );
 802
 803                 q("update conv set updated = '%s' where id = %d",
 804                         dbesc(datetime_convert()),
 805                         intval($conversation['id'])
 806                 );
 807
 808                 notification(array(
 809                         'type' => NOTIFY_MAIL,
 810                         'notify_flags' => $importer['notify-flags'],
 811                         'language' => $importer['language'],
 812                         'to_name' => $importer['username'],
 813                         'to_email' => $importer['email'],
 814                         'uid' =>$importer['uid'],
 815                         'item' => array('subject' => $subject, 'body' => $body),
 816                         'source_name' => $person['name'],
 817                         'source_link' => $person['url'],
 818                         'source_photo' => $person['thumb'],
 819                         'verb' => ACTIVITY_POST,
 820                         'otype' => 'mail'
 821                 ));
 822         }
 823 */
 824                 return true;
 825         }
 826
 827         private function construct_like_body($contact, $parent_item, $guid) {
 828                 $bodyverb = t('%1$s likes %2$s\'s %3$s');
 829
 830                 $ulink = "[url=".$contact["url"]."]".$contact["name"]."[/url]";
 831                 $alink = "[url=".$parent_item["author-link"]."]".$parent_item["author-name"]."[/url]";
 832                 $plink = "[url=".App::get_baseurl()."/display/".urlencode($guid)."]".t("status")."[/url]";
 833
 834                 return sprintf($bodyverb, $ulink, $alink, $plink);
 835         }
 836
 837         private function construct_like_object($importer, $parent_item) {
 838                 $objtype = ACTIVITY_OBJ_NOTE;
 839                 $link = xmlify('<link rel="alternate" type="text/html" href="'.App::get_baseurl()."/display/".$importer["nickname"]."/".$parent_item["id"].'" />'."\n") ;
 840                 $parent_body = $parent_item["body"];
 841
 842                 $obj = <<< EOT
 843
 844                 <object>
 845                         <type>$objtype</type>
 846                         <local>1</local>
 847                         <id>{$parent_item["uri"]}</id>
 848                         <link>$link</link>
 849                         <title></title>
 850                         <content>$parent_body</content>
 851                 </object>
 852 EOT;
 853
 854                 return $obj;
 855         }
 856
 857         private function import_like($importer, $sender, $data) {
 858                 $positive = notags(unxmlify($data->positive));
 859                 $guid = notags(unxmlify($data->guid));
 860                 $parent_type = notags(unxmlify($data->parent_type));
 861                 $parent_guid = notags(unxmlify($data->parent_guid));
 862                 $author = notags(unxmlify($data->author));
 863
 864                 // likes on comments aren't supported by Diaspora - only on posts
 865                 if ($parent_type !== "Post")
 866                         return false;
 867
 868                 // "positive" = "false" doesn't seem to be supported by Diaspora
 869                 if ($positive === "false") {
 870                         logger("Received a like with positive set to 'false' - this shouldn't exist at all");
 871                         return false;
 872                 }
 873
 874                 $contact = self::get_contact_by_handle($importer["uid"], $sender);
 875                 if (!$contact) {
 876                         logger("cannot find contact for sender: ".$sender);
 877                         return false;
 878                 }
 879
 880                 if (!self::post_allow($importer,$contact, true)) {
 881                         logger("Ignoring the author ".$sender);
 882                         return false;
 883                 }
 884
 885                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
 886                         intval($importer["uid"]),
 887                         dbesc($guid)
 888                 );
 889                 if(count($r)) {
 890                         logger("The like already exists: ".$guid);
 891                         return false;
 892                 }
 893
 894                 $parent_item = self::fetch_parent_item($importer["uid"], $parent_guid, $author, $contact);
 895                 if (!$parent_item)
 896                         return false;
 897
 898                 $person = self::get_person_by_handle($author);
 899                 if (!is_array($person)) {
 900                         logger("unable to find author details");
 901                         return false;
 902                 }
 903
 904                 // Fetch the contact id - if we know this contact
 905                 $author_contact = self::get_author_contact_by_url($contact, $person, $importer["uid"]);
 906
 907                 $datarray = array();
 908
 909                 $datarray["uid"] = $importer["uid"];
 910                 $datarray["contact-id"] = $author_contact["cid"];
 911                 $datarray["network"]  = $author_contact["network"];
 912
 913                 $datarray["author-name"] = $person["name"];
 914                 $datarray["author-link"] = $person["url"];
 915                 $datarray["author-avatar"] = ((x($person,"thumb")) ? $person["thumb"] : $person["photo"]);
 916
 917                 $datarray["owner-name"] = $contact["name"];
 918                 $datarray["owner-link"] = $contact["url"];
 919                 $datarray["owner-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
 920
 921                 $datarray["guid"] = $guid;
 922                 $datarray["uri"] = $author.":".$guid;
 923
 924                 $datarray["type"] = "activity";
 925                 $datarray["verb"] = ACTIVITY_LIKE;
 926                 $datarray["gravity"] = GRAVITY_LIKE;
 927                 $datarray["parent-uri"] = $parent_item["uri"];
 928
 929                 $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
 930                 $datarray["object"] = self::construct_like_object($importer, $parent_item);
 931
 932                 $datarray["body"] = self::construct_like_body($contact, $parent_item, $guid);
 933
 934                 $message_id = item_store($datarray);
 935                 //print_r($datarray);
 936
 937                 // If we are the origin of the parent we store the original data and notify our followers
 938                 if($message_id AND $parent_item["origin"]) {
 939
 940                         // Formerly we stored the signed text, the signature and the author in different fields.
 941                         // The new Diaspora protocol can have variable fields. We now store the data in correct order in a single field.
 942                         q("INSERT INTO `sign` (`iid`,`signed_text`) VALUES (%d,'%s')",
 943                                 intval($message_id),
 944                                 dbesc(json_encode($data))
 945                         );
 946
 947                         // notify others
 948                         proc_run("php", "include/notifier.php", "comment-import", $message_id);
 949                 }
 950
 951                 return $message_id;
 952         }
 953
 954         private function import_message($importer, $data) {
 955                 $guid = notags(unxmlify($data->guid));
 956                 $parent_guid = notags(unxmlify($data->parent_guid));
 957                 $text = unxmlify($data->text);
 958                 $created_at = datetime_convert("UTC", "UTC", notags(unxmlify($data->created_at)));
 959                 $author = notags(unxmlify($data->author));
 960                 $conversation_guid = notags(unxmlify($data->conversation_guid));
 961
 962                 $parent_uri = $author.":".$parent_guid;
 963
 964                 $contact = self::get_contact_by_handle($importer["uid"], $author);
 965                 if (!$contact) {
 966                         logger("cannot find contact: ".$author);
 967                         return false;
 968                 }
 969
 970                 if(($contact["rel"] == CONTACT_IS_FOLLOWER) || ($contact["blocked"]) || ($contact["readonly"])) {
 971                         logger("Ignoring this author.");
 972                         return false;
 973                 }
 974
 975                 $conversation = null;
 976
 977                 $c = q("SELECT * FROM `conv` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
 978                         intval($importer["uid"]),
 979                         dbesc($conversation_guid)
 980                 );
 981                 if(count($c))
 982                         $conversation = $c[0];
 983                 else {
 984                         logger("conversation not available.");
 985                         return false;
 986                 }
 987
 988                 $reply = 0;
 989
 990                 $body = diaspora2bb($text);
 991                 $message_id = $author.":".$guid;
 992
 993                 $person = self::get_person_by_handle($author);
 994                 if (!$person) {
 995                         logger("unable to find author details");
 996                         return false;
 997                 }
 998
 999                 $r = q("SELECT `id` FROM `mail` WHERE `uri` = '%s' AND `uid` = %d LIMIT 1",
1000                         dbesc($message_id),
1001                         intval($importer["uid"])
1002                 );
1003                 if(count($r)) {
1004                         logger("duplicate message already delivered.", LOGGER_DEBUG);
1005                         return false;
1006                 }
1007
1008                 q("INSERT INTO `mail` (`uid`, `guid`, `convid`, `from-name`,`from-photo`,`from-url`,`contact-id`,`title`,`body`,`seen`,`reply`,`uri`,`parent-uri`,`created`)
1009                                 VALUES ( %d, '%s', %d, '%s', '%s', '%s', %d, '%s', '%s', %d, %d, '%s','%s','%s')",
1010                         intval($importer["uid"]),
1011                         dbesc($guid),
1012                         intval($conversation["id"]),
1013                         dbesc($person["name"]),
1014                         dbesc($person["photo"]),
1015                         dbesc($person["url"]),
1016                         intval($contact["id"]),
1017                         dbesc($conversation["subject"]),
1018                         dbesc($body),
1019                         0,
1020                         1,
1021                         dbesc($message_id),
1022                         dbesc($parent_uri),
1023                         dbesc($created_at)
1024                 );
1025
1026                 q("UPDATE `conv` SET `updated` = '%s' WHERE `id` = %d",
1027                         dbesc(datetime_convert()),
1028                         intval($conversation["id"])
1029                 );
1030
1031                 return true;
1032         }
1033
1034         private function import_participation($importer, $data) {
1035                 // I'm not sure if we can fully support this message type
1036                 return true;
1037         }
1038
1039         private function import_photo($importer, $data) {
1040                 // There doesn't seem to be a reason for this function, since the photo data is transmitted in the status message as well
1041                 return true;
1042         }
1043
1044         private function import_poll_participation($importer, $data) {
1045                 // We don't support polls by now
1046                 return true;
1047         }
1048
1049         private function import_profile($importer, $data) {
1050                 $author = notags(unxmlify($data->author));
1051
1052                 $contact = self::get_contact_by_handle($importer["uid"], $author);
1053                 if (!$contact)
1054                         return;
1055
1056                 $name = unxmlify($data->first_name).((strlen($data->last_name)) ? " ".unxmlify($data->last_name) : "");
1057                 $image_url = unxmlify($data->image_url);
1058                 $birthday = unxmlify($data->birthday);
1059                 $location = diaspora2bb(unxmlify($data->location));
1060                 $about = diaspora2bb(unxmlify($data->bio));
1061                 $gender = unxmlify($data->gender);
1062                 $searchable = (unxmlify($data->searchable) == "true");
1063                 $nsfw = (unxmlify($data->nsfw) == "true");
1064                 $tags = unxmlify($data->tag_string);
1065
1066                 $tags = explode("#", $tags);
1067
1068                 $keywords = array();
1069                 foreach ($tags as $tag) {
1070                         $tag = trim(strtolower($tag));
1071                         if ($tag != "")
1072                                 $keywords[] = $tag;
1073                 }
1074
1075                 $keywords = implode(", ", $keywords);
1076
1077                 $handle_parts = explode("@", $author);
1078                 $nick = $handle_parts[0];
1079
1080                 if($name === "")
1081                         $name = $handle_parts[0];
1082
1083                 if( preg_match("|^https?://|", $image_url) === 0)
1084                         $image_url = "http://".$handle_parts[1].$image_url;
1085
1086                 update_contact_avatar($image_url, $importer["uid"], $contact["id"]);
1087
1088                 // Generic birthday. We don't know the timezone. The year is irrelevant.
1089
1090                 $birthday = str_replace("1000", "1901", $birthday);
1091
1092                 if ($birthday != "")
1093                         $birthday = datetime_convert("UTC", "UTC", $birthday, "Y-m-d");
1094
1095                 // this is to prevent multiple birthday notifications in a single year
1096                 // if we already have a stored birthday and the 'm-d' part hasn't changed, preserve the entry, which will preserve the notify year
1097
1098                 if(substr($birthday,5) === substr($contact["bd"],5))
1099                         $birthday = $contact["bd"];
1100
1101                 $r = q("UPDATE `contact` SET `name` = '%s', `nick` = '%s', `addr` = '%s', `name-date` = '%s', `bd` = '%s',
1102                                 `location` = '%s', `about` = '%s', `keywords` = '%s', `gender` = '%s' WHERE `id` = %d AND `uid` = %d",
1103                         dbesc($name),
1104                         dbesc($nick),
1105                         dbesc($author),
1106                         dbesc(datetime_convert()),
1107                         dbesc($birthday),
1108                         dbesc($location),
1109                         dbesc($about),
1110                         dbesc($keywords),
1111                         dbesc($gender),
1112                         intval($contact["id"]),
1113                         intval($importer["uid"])
1114                 );
1115
1116                 if ($searchable) {
1117                         poco_check($contact["url"], $name, NETWORK_DIASPORA, $image_url, $about, $location, $gender, $keywords, "",
1118                                 datetime_convert(), 2, $contact["id"], $importer["uid"]);
1119                 }
1120
1121                 $gcontact = array("url" => $contact["url"], "network" => NETWORK_DIASPORA, "generation" => 2,
1122                                         "photo" => $image_url, "name" => $name, "location" => $location,
1123                                         "about" => $about, "birthday" => $birthday, "gender" => $gender,
1124                                         "addr" => $author, "nick" => $nick, "keywords" => $keywords,
1125                                         "hide" => !$searchable, "nsfw" => $nsfw);
1126
1127                 update_gcontact($gcontact);
1128
1129                 return true;
1130         }
1131
1132         private function import_request($importer, $data) {
1133 print_r($data);
1134 /*
1135         $author = unxmlify($xml->author);
1136         $recipient = unxmlify($xml->recipient);
1137
1138         if (!$author || !$recipient)
1139                 return;
1140
1141         $contact = self::get_contact_by_handle($importer["uid"],$author);
1142
1143         if($contact) {
1144
1145                 // perhaps we were already sharing with this person. Now they're sharing with us.
1146                 // That makes us friends.
1147
1148                 if($contact["rel"] == CONTACT_IS_FOLLOWER && in_array($importer["page-flags"], array(PAGE_FREELOVE))) {
1149                         q("UPDATE `contact` SET `rel` = %d, `writable` = 1 WHERE `id` = %d AND `uid` = %d",
1150                                 intval(CONTACT_IS_FRIEND),
1151                                 intval($contact["id"]),
1152                                 intval($importer["uid"])
1153                         );
1154                 }
1155                 // send notification
1156
1157                 $r = q("SELECT `hide-friends` FROM `profile` WHERE `uid` = %d AND `is-default` = 1 LIMIT 1",
1158                         intval($importer["uid"])
1159                 );
1160
1161                 if((count($r)) && (!$r[0]["hide-friends"]) && (!$contact["hidden"]) && intval(get_pconfig($importer["uid"],'system','post_newfriend'))) {
1162                         require_once('include/items.php');
1163
1164                         $self = q("SELECT * FROM `contact` WHERE `self` = 1 AND `uid` = %d LIMIT 1",
1165                                 intval($importer["uid"])
1166                         );
1167
1168                         // they are not CONTACT_IS_FOLLOWER anymore but that's what we have in the array
1169
1170                         if(count($self) && $contact["rel"] == CONTACT_IS_FOLLOWER) {
1171
1172                                 $arr = array();
1173                                 $arr["uri"] = $arr["parent-uri"] = item_new_uri($a->get_hostname(), $importer["uid"]);
1174                                 $arr["uid"] = $importer["uid"];
1175                                 $arr["contact-id"] = $self[0]["id"];
1176                                 $arr["wall"] = 1;
1177                                 $arr["type"] = 'wall';
1178                                 $arr["gravity"] = 0;
1179                                 $arr["origin"] = 1;
1180                                 $arr["author-name"] = $arr["owner-name"] = $self[0]["name"];
1181                                 $arr["author-link"] = $arr["owner-link"] = $self[0]["url"];
1182                                 $arr["author-avatar"] = $arr["owner-avatar"] = $self[0]["thumb"];
1183                                 $arr["verb"] = ACTIVITY_FRIEND;
1184                                 $arr["object-type"] = ACTIVITY_OBJ_PERSON;
1185
1186                                 $A = '[url=' . $self[0]["url"] . "]' . $self[0]["name"] . '[/url]';
1187                                 $B = '[url=' . $contact["url"] . "]' . $contact["name"] . '[/url]';
1188                                 $BPhoto = '[url=' . $contact["url"] . "]' . '[img]' . $contact["thumb"] . '[/img][/url]';
1189                                 $arr["body"] =  sprintf( t('%1$s is now friends with %2$s'), $A, $B)."\n\n\n".$Bphoto;
1190
1191                                 $arr["object"] = '<object><type>' . ACTIVITY_OBJ_PERSON . '</type><title>' . $contact["name"] . '</title>'
1192                                         . '<id>' . $contact["url"] . '/' . $contact["name"] . '</id>';
1193                                 $arr["object"] .= '<link>' . xmlify('<link rel="alternate" type="text/html" href="' . $contact["url"] . '" />' . "\n")
1194 ;
1195                                 $arr["object"] .= xmlify('<link rel="photo" type="image/jpeg" href="' . $contact["thumb"] . '" />' . "\n");
1196                                 $arr["object"] .= '</link></object>' . "\n";
1197                                 $arr["last-child"] = 1;
1198
1199                                 $arr["allow_cid"] = $user[0]["allow_cid"];
1200                                 $arr["allow_gid"] = $user[0]["allow_gid"];
1201                                 $arr["deny_cid"]  = $user[0]["deny_cid"];
1202                                 $arr["deny_gid"]  = $user[0]["deny_gid"];
1203
1204                                 $i = item_store($arr);
1205                                 if($i)
1206                                 proc_run('php',"include/notifier.php","activity","$i");
1207
1208                         }
1209
1210                 }
1211
1212                 return;
1213         }
1214
1215         $ret = self::get_person_by_handle($author);
1216
1217
1218         if((! count($ret)) || ($ret["network"] != NETWORK_DIASPORA)) {
1219                 logger('diaspora_request: Cannot resolve diaspora handle ' . $author . ' for ' . $recipient);
1220                 return;
1221         }
1222
1223         $batch = (($ret["batch"]) ? $ret["batch"] : implode('/', array_slice(explode('/',$ret["url"]),0,3)) . '/receive/public');
1224
1225
1226
1227         $r = q("INSERT INTO `contact` (`uid`, `network`,`addr`,`created`,`url`,`nurl`,`batch`,`name`,`nick`,`photo`,`pubkey`,`notify`,`poll`,`blocked`,`priority`)
1228                 VALUES ( %d, '%s', '%s', '%s', '%s','%s','%s','%s','%s','%s','%s','%s','%s',%d,%d) ",
1229                 intval($importer["uid"]),
1230                 dbesc($ret["network"]),
1231                 dbesc($ret["addr"]),
1232                 datetime_convert(),
1233                 dbesc($ret["url"]),
1234                 dbesc(normalise_link($ret["url"])),
1235                 dbesc($batch),
1236                 dbesc($ret["name"]),
1237                 dbesc($ret["nick"]),
1238                 dbesc($ret["photo"]),
1239                 dbesc($ret["pubkey"]),
1240                 dbesc($ret["notify"]),
1241                 dbesc($ret["poll"]),
1242                 1,
1243                 2
1244         );
1245
1246         // find the contact record we just created
1247
1248         $contact_record = diaspora_get_contact_by_handle($importer["uid"],$author);
1249
1250         if(! $contact_record) {
1251                 logger('diaspora_request: unable to locate newly created contact record.');
1252                 return;
1253         }
1254
1255         $g = q("select def_gid from user where uid = %d limit 1",
1256                 intval($importer["uid"])
1257         );
1258         if($g && intval($g[0]["def_gid"])) {
1259                 require_once('include/group.php');
1260                 group_add_member($importer["uid"],'',$contact_record["id"],$g[0]["def_gid"]);
1261         }
1262
1263         if($importer["page-flags"] == PAGE_NORMAL) {
1264
1265                 $hash = random_string() . (string) time();   // Generate a confirm_key
1266
1267                 $ret = q("INSERT INTO `intro` ( `uid`, `contact-id`, `blocked`, `knowyou`, `note`, `hash`, `datetime` )
1268                         VALUES ( %d, %d, %d, %d, '%s', '%s', '%s' )",
1269                         intval($importer["uid"]),
1270                         intval($contact_record["id"]),
1271                         0,
1272                         0,
1273                         dbesc( t('Sharing notification from Diaspora network')),
1274                         dbesc($hash),
1275                         dbesc(datetime_convert())
1276                 );
1277         }
1278         else {
1279
1280                 // automatic friend approval
1281
1282                 require_once('include/Photo.php');
1283
1284                 update_contact_avatar($contact_record["photo"],$importer["uid"],$contact_record["id"]);
1285
1286                 // technically they are sharing with us (CONTACT_IS_SHARING),
1287                 // but if our page-type is PAGE_COMMUNITY or PAGE_SOAPBOX
1288                 // we are going to change the relationship and make them a follower.
1289
1290                 if($importer["page-flags"] == PAGE_FREELOVE)
1291                         $new_relation = CONTACT_IS_FRIEND;
1292                 else
1293                         $new_relation = CONTACT_IS_FOLLOWER;
1294
1295                 $r = q("UPDATE `contact` SET `rel` = %d,
1296                         `name-date` = '%s',
1297                         `uri-date` = '%s',
1298                         `blocked` = 0,
1299                         `pending` = 0,
1300                         `writable` = 1
1301                         WHERE `id` = %d
1302                         ",
1303                         intval($new_relation),
1304                         dbesc(datetime_convert()),
1305                         dbesc(datetime_convert()),
1306                         intval($contact_record["id"])
1307                 );
1308
1309                 $u = q("select * from user where uid = %d limit 1",intval($importer["uid"]));
1310                 if($u)
1311                         $ret = diaspora_share($u[0],$contact_record);
1312         }
1313 */
1314                 return true;
1315         }
1316
1317         private function import_reshare($importer, $data) {
1318                 $root_author = notags(unxmlify($data->root_author));
1319                 $root_guid = notags(unxmlify($data->root_guid));
1320                 $guid = notags(unxmlify($data->guid));
1321                 $author = notags(unxmlify($data->author));
1322                 $public = notags(unxmlify($data->public));
1323                 $created_at = notags(unxmlify($data->created_at));
1324
1325                 $contact = self::get_contact_by_handle($importer["uid"], $author);
1326                 if (!$contact)
1327                         return false;
1328
1329                 if (!self::post_allow($importer, $contact, false)) {
1330                         logger("Ignoring this author: ".$author." ".print_r($data,true));
1331                         return false;
1332                 }
1333 /*
1334                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1335                         intval($importer["uid"]),
1336                         dbesc($guid)
1337                 );
1338                 if(count($r)) {
1339                         logger("message exists: ".$guid);
1340                         return;
1341                 }
1342 */
1343                 $orig_author = $root_author;
1344                 $orig_guid = $root_guid;
1345                 $orig_url = App::get_baseurl()."/display/".$guid;
1346
1347                 $create_original_post = false;
1348
1349                 // Do we already have this item?
1350                 $r = q("SELECT `body`, `tag`, `app`, `created`, `plink`, `object`, `object-type`, `uri` FROM `item` WHERE `guid` = '%s' AND `visible` AND NOT `deleted` AND `body` != '' LIMIT 1",
1351                         dbesc($orig_guid),
1352                         dbesc(NETWORK_DIASPORA)
1353                 );
1354                 if(count($r)) {
1355                         logger("reshared message ".$orig_guid." reshared by ".$guid." already exists on system.");
1356
1357                         // Maybe it is already a reshared item?
1358                         // Then refetch the content, since there can be many side effects with reshared posts from other networks or reshares from reshares
1359                         require_once('include/api.php');
1360                         if (api_share_as_retweet($r[0]))
1361                                 $r = array();
1362                         else {
1363                                 $body = $r[0]["body"];
1364                                 $str_tags = $r[0]["tag"];
1365                                 $app = $r[0]["app"];
1366                                 $orig_created = $r[0]["created"];
1367                                 $orig_plink = $r[0]["plink"];
1368                                 $orig_uri = $r[0]["uri"];
1369                                 $object = $r[0]["object"];
1370                                 $objecttype = $r[0]["object-type"];
1371                         }
1372                 }
1373
1374 /* @todo
1375                 if (!count($r)) {
1376                         $body = "";
1377                         $str_tags = "";
1378                         $app = "";
1379
1380                         $server = 'https://'.substr($orig_author,strpos($orig_author,'@')+1);
1381                         logger('1st try: reshared message '.$orig_guid." reshared by ".$guid.' will be fetched from original server: '.$server);
1382                         $item = self::fetch_message($orig_guid, $server);
1383
1384                         if (!$item) {
1385                                 $server = 'https://'.substr($author,strpos($author,'@')+1);
1386                                 logger('2nd try: reshared message '.$orig_guid." reshared by ".$guid." will be fetched from sharer's server: ".$server);
1387                                 $item = diaspora_fetch_message($orig_guid, $server);
1388                         }
1389                         if (!$item) {
1390                                 $server = 'http://'.substr($orig_author,strpos($orig_author,'@')+1);
1391                                 logger('3rd try: reshared message '.$orig_guid." reshared by ".$guid.' will be fetched from original server: '.$server);
1392                                 $item = diaspora_fetch_message($orig_guid, $server);
1393                         }
1394                         if (!$item) {
1395                                 $server = 'http://'.substr($author,strpos($author,'@')+1);
1396                                 logger('4th try: reshared message '.$orig_guid." reshared by ".$guid." will be fetched from sharer's server: ".$server);
1397                                 $item = diaspora_fetch_message($orig_guid, $server);
1398                         }
1399
1400                         if ($item) {
1401                                 $body = $item["body"];
1402                                 $str_tags = $item["tag"];
1403                                 $app = $item["app"];
1404                                 $orig_created = $item["created"];
1405                                 $orig_author = $item["author"];
1406                                 $orig_guid = $item["guid"];
1407                                 $orig_plink = diaspora_plink($orig_author, $orig_guid);
1408                                 $orig_uri = $orig_author.":".$orig_guid;
1409                                 $create_original_post = ($body != "");
1410                                 $object = $item["object"];
1411                                 $objecttype = $item["object-type"];
1412                         }
1413                 }
1414 */
1415                 $plink = self::plink($author, $guid);
1416
1417                 $person = self::get_person_by_handle($orig_author);
1418
1419                 $private = (($public == "false") ? 1 : 0);
1420
1421                 $datarray = array();
1422
1423                 $datarray["uid"] = $importer["uid"];
1424                 $datarray["contact-id"] = $contact["id"];
1425                 $datarray["network"]  = NETWORK_DIASPORA;
1426
1427                 $datarray["author-name"] = $contact["name"];
1428                 $datarray["author-link"] = $contact["url"];
1429                 $datarray["author-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
1430
1431                 $datarray["owner-name"] = $datarray["author-name"];
1432                 $datarray["owner-link"] = $datarray["author-link"];
1433                 $datarray["owner-avatar"] = $datarray["author-avatar"];
1434
1435                 $datarray["guid"] = $guid;
1436                 $datarray["uri"] = $datarray["parent-uri"] = $author.":".$guid;
1437
1438                 $datarray["verb"] = ACTIVITY_POST;
1439                 $datarray["gravity"] = GRAVITY_PARENT;
1440
1441                 $datarray["object"] = json_encode($data);
1442
1443                 $prefix = share_header($person["name"], $person["url"], ((x($person,'thumb')) ? $person["thumb"] : $person["photo"]),
1444                                         $orig_guid, $orig_created, $orig_url);
1445                 $datarray["body"] = $prefix.$body."[/share]";
1446
1447                 $datarray["tag"] = $str_tags;
1448                 $datarray["app"]  = $app;
1449
1450                 $datarray["plink"] = $plink;
1451                 $datarray["private"] = $private;
1452                 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = datetime_convert("UTC", "UTC", $created_at);
1453
1454                 $datarray["object-type"] = $objecttype;
1455
1456                 self::fetch_guid($datarray);
1457                 //$message_id = item_store($datarray);
1458                 print_r($datarray);
1459
1460                 return $message_id;
1461         }
1462
1463         private function import_retraction($importer, $data) {
1464                 return true;
1465         }
1466
1467         private function import_status_message($importer, $data) {
1468
1469                 $raw_message = unxmlify($data->raw_message);
1470                 $guid = notags(unxmlify($data->guid));
1471                 $author = notags(unxmlify($data->author));
1472                 $public = notags(unxmlify($data->public));
1473                 $created_at = notags(unxmlify($data->created_at));
1474                 $provider_display_name = notags(unxmlify($data->provider_display_name));
1475
1476                 $contact = self::get_contact_by_handle($importer["uid"], $author);
1477                 if (!$contact) {
1478                         logger("A Contact for handle ".$author." and user ".$importer["uid"]." was not found");
1479                         return false;
1480                 }
1481
1482                 if (!self::post_allow($importer, $contact, false)) {
1483                         logger("Ignoring this author.");
1484                         return false;
1485                 }
1486
1487                 $r = q("SELECT `id` FROM `item` WHERE `uid` = %d AND `guid` = '%s' LIMIT 1",
1488                         intval($importer["uid"]),
1489                         dbesc($guid)
1490                 );
1491                 if(count($r)) {
1492                         logger("message exists: ".$guid);
1493                         return false;
1494                 }
1495
1496                 /// @todo enable support for polls
1497                 // if ($data->poll) {
1498                 //      print_r($data->poll);
1499                 //      die("poll!\n");
1500                 // }
1501
1502                 $address = array();
1503                 if ($data->location)
1504                         foreach ($data->location->children() AS $fieldname => $data)
1505                                 $address[$fieldname] = notags(unxmlify($data));
1506
1507                 $private = (($public == "false") ? 1 : 0);
1508
1509                 $body = diaspora2bb($raw_message);
1510
1511                 if ($data->photo)
1512                         for ($i = 0; $i < count($data->photo); $i++)
1513                                 $body = "[img]".$data->photo[$i]->remote_photo_path.$data->photo[$i]->remote_photo_name."[/img]\n".$body;
1514
1515                 $datarray = array();
1516
1517                 if($data->photo->remote_photo_path AND $data->photo->remote_photo_name)
1518                         $datarray["object-type"] = ACTIVITY_OBJ_PHOTO;
1519                 else {
1520                         $datarray["object-type"] = ACTIVITY_OBJ_NOTE;
1521                         // Add OEmbed and other information to the body
1522                         if (!self::is_redmatrix($contact["url"]))
1523                                 $body = add_page_info_to_body($body, false, true);
1524                 }
1525
1526                 $str_tags = "";
1527
1528                 $cnt = preg_match_all("/@\[url=(.*?)\[\/url\]/ism", $body, $matches, PREG_SET_ORDER);
1529                 if($cnt) {
1530                         foreach($matches as $mtch) {
1531                                 if(strlen($str_tags))
1532                                         $str_tags .= ",";
1533                                 $str_tags .= "@[url=".$mtch[1]."[/url]";
1534                         }
1535                 }
1536                 $plink = self::plink($author, $guid);
1537
1538                 $datarray["uid"] = $importer["uid"];
1539                 $datarray["contact-id"] = $contact["id"];
1540                 $datarray["network"] = NETWORK_DIASPORA;
1541
1542                 $datarray["author-name"] = $contact["name"];
1543                 $datarray["author-link"] = $contact["url"];
1544                 $datarray["author-avatar"] = ((x($contact,"thumb")) ? $contact["thumb"] : $contact["photo"]);
1545
1546                 $datarray["owner-name"] = $datarray["author-name"];
1547                 $datarray["owner-link"] = $datarray["author-link"];
1548                 $datarray["owner-avatar"] = $datarray["author-avatar"];
1549
1550                 $datarray["guid"] = $guid;
1551                 $datarray["uri"] = $datarray["parent-uri"] = $author.":".$guid;
1552
1553                 $datarray["verb"] = ACTIVITY_POST;
1554                 $datarray["gravity"] = GRAVITY_PARENT;
1555
1556                 $datarray["object"] = json_encode($data);
1557
1558                 $datarray["body"] = $body;
1559
1560                 $datarray["tag"] = $str_tags;
1561                 if ($provider_display_name != "")
1562                         $datarray["app"] = $provider_display_name;
1563
1564                 $datarray["plink"] = $plink;
1565                 $datarray["private"] = $private;
1566                 $datarray["changed"] = $datarray["created"] = $datarray["edited"] = datetime_convert("UTC", "UTC", $created_at);
1567
1568                 if (isset($address["address"]))
1569                         $datarray["location"] = $address["address"];
1570
1571                 if (isset($address["lat"]) AND isset($address["lng"]))
1572                         $datarray["coord"] = $address["lat"]." ".$address["lng"];
1573
1574                 self::fetch_guid($datarray);
1575                 //$message_id = item_store($datarray);
1576                 print_r($datarray);
1577
1578                 logger("Stored item with message id ".$message_id, LOGGER_DEBUG);
1579
1580                 return $message_id;
1581         }
1582 }
1583 ?>