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