src/Model/GContact.php

   1 <?php
   2
   3 /**
   4  * @file src/Model/GlobalContact.php
   5  * @brief This file includes the GlobalContact class with directory related functions
   6  */
   7 namespace Friendica\Model;
   8
   9 use Friendica\Core\Config;
  10 use Friendica\Core\System;
  11 use Friendica\Core\Worker;
  12 use Friendica\Database\DBM;
  13 use Friendica\Model\Contact;
  14 use Friendica\Model\Profile;
  15 use Friendica\Network\Probe;
  16 use Friendica\Protocol\PortableContact;
  17 use Friendica\Util\DateTimeFormat;
  18 use Friendica\Util\Network;
  19 use dba;
  20 use Exception;
  21
  22 require_once 'include/dba.php';
  23 require_once 'include/html2bbcode.php';
  24
  25 /**
  26  * @brief This class handles GlobalContact related functions
  27  */
  28 class GContact
  29 {
  30         /**
  31          * @brief Search global contact table by nick or name
  32          *
  33          * @param string $search Name or nick
  34          * @param string $mode   Search mode (e.g. "community")
  35          *
  36          * @return array with search results
  37          */
  38         public static function searchByName($search, $mode = '')
  39         {
  40                 if (empty($search)) {
  41                         return [];
  42                 }
  43
  44                 // check supported networks
  45                 if (Config::get('system', 'diaspora_enabled')) {
  46                         $diaspora = NETWORK_DIASPORA;
  47                 } else {
  48                         $diaspora = NETWORK_DFRN;
  49                 }
  50
  51                 if (!Config::get('system', 'ostatus_disabled')) {
  52                         $ostatus = NETWORK_OSTATUS;
  53                 } else {
  54                         $ostatus = NETWORK_DFRN;
  55                 }
  56
  57                 // check if we search only communities or every contact
  58                 if ($mode === "community") {
  59                         $extra_sql = " AND `community`";
  60                 } else {
  61                         $extra_sql = "";
  62                 }
  63
  64                 $search .= "%";
  65
  66                 $results = dba::p("SELECT `nurl` FROM `gcontact`
  67                         WHERE NOT `hide` AND `network` IN (?, ?, ?) AND
  68                                 ((`last_contact` >= `last_failure`) OR (`updated` >= `last_failure`)) AND
  69                                 (`addr` LIKE ? OR `name` LIKE ? OR `nick` LIKE ?) $extra_sql
  70                                 GROUP BY `nurl` ORDER BY `nurl` DESC LIMIT 1000",
  71                         NETWORK_DFRN, $ostatus, $diaspora, $search, $search, $search
  72                 );
  73
  74                 $gcontacts = [];
  75                 while ($result = dba::fetch($results)) {
  76                         $urlparts = parse_url($result["nurl"]);
  77
  78                         // Ignore results that look strange.
  79                         // For historic reasons the gcontact table does contain some garbage.
  80                         if (!empty($urlparts['query']) || !empty($urlparts['fragment'])) {
  81                                 continue;
  82                         }
  83
  84                         $gcontacts[] = Contact::getDetailsByURL($result["nurl"], local_user());
  85                 }
  86                 return $gcontacts;
  87         }
  88
  89         /**
  90          * @brief Link the gcontact entry with user, contact and global contact
  91          *
  92          * @param integer $gcid Global contact ID
  93          * @param integer $uid  User ID
  94          * @param integer $cid  Contact ID
  95          * @param integer $zcid Global Contact ID
  96          * @return void
  97          */
  98         public static function link($gcid, $uid = 0, $cid = 0, $zcid = 0)
  99         {
 100                 if ($gcid <= 0) {
 101                         return;
 102                 }
 103
 104                 $r = q(
 105                         "SELECT * FROM `glink` WHERE `cid` = %d AND `uid` = %d AND `gcid` = %d AND `zcid` = %d LIMIT 1",
 106                         intval($cid),
 107                         intval($uid),
 108                         intval($gcid),
 109                         intval($zcid)
 110                 );
 111
 112                 if (!DBM::is_result($r)) {
 113                         q(
 114                                 "INSERT INTO `glink` (`cid`, `uid`, `gcid`, `zcid`, `updated`) VALUES (%d, %d, %d, %d, '%s') ",
 115                                 intval($cid),
 116                                 intval($uid),
 117                                 intval($gcid),
 118                                 intval($zcid),
 119                                 dbesc(DateTimeFormat::utcNow())
 120                         );
 121                 } else {
 122                         q(
 123                                 "UPDATE `glink` SET `updated` = '%s' WHERE `cid` = %d AND `uid` = %d AND `gcid` = %d AND `zcid` = %d",
 124                                 dbesc(DateTimeFormat::utcNow()),
 125                                 intval($cid),
 126                                 intval($uid),
 127                                 intval($gcid),
 128                                 intval($zcid)
 129                         );
 130                 }
 131         }
 132
 133         /**
 134          * @brief Sanitize the given gcontact data
 135          *
 136          * @param array $gcontact array with gcontact data
 137          * @throw Exception
 138          *
 139          * Generation:
 140          *  0: No definition
 141          *  1: Profiles on this server
 142          *  2: Contacts of profiles on this server
 143          *  3: Contacts of contacts of profiles on this server
 144          *  4: ...
 145          * @return array $gcontact
 146          */
 147         public static function sanitize($gcontact)
 148         {
 149                 if ($gcontact['url'] == "") {
 150                         throw new Exception('URL is empty');
 151                 }
 152
 153                 $urlparts = parse_url($gcontact['url']);
 154                 if (!isset($urlparts["scheme"])) {
 155                         throw new Exception("This (".$gcontact['url'].") doesn't seem to be an url.");
 156                 }
 157
 158                 if (in_array($urlparts["host"], ["www.facebook.com", "facebook.com", "twitter.com", "identi.ca", "alpha.app.net"])) {
 159                         throw new Exception('Contact from a non federated network ignored. ('.$gcontact['url'].')');
 160                 }
 161
 162                 // Don't store the statusnet connector as network
 163                 // We can't simply set this to NETWORK_OSTATUS since the connector could have fetched posts from friendica as well
 164                 if ($gcontact['network'] == NETWORK_STATUSNET) {
 165                         $gcontact['network'] = "";
 166                 }
 167
 168                 // Assure that there are no parameter fragments in the profile url
 169                 if (in_array($gcontact['network'], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
 170                         $gcontact['url'] = self::cleanContactUrl($gcontact['url']);
 171                 }
 172
 173                 $alternate = PortableContact::alternateOStatusUrl($gcontact['url']);
 174
 175                 // The global contacts should contain the original picture, not the cached one
 176                 if (($gcontact['generation'] != 1) && stristr(normalise_link($gcontact['photo']), normalise_link(System::baseUrl()."/photo/"))) {
 177                         $gcontact['photo'] = "";
 178                 }
 179
 180                 if (!isset($gcontact['network'])) {
 181                         $r = q(
 182                                 "SELECT `network` FROM `contact` WHERE `uid` = 0 AND `nurl` = '%s' AND `network` != '' AND `network` != '%s' LIMIT 1",
 183                                 dbesc(normalise_link($gcontact['url'])),
 184                                 dbesc(NETWORK_STATUSNET)
 185                         );
 186                         if (DBM::is_result($r)) {
 187                                 $gcontact['network'] = $r[0]["network"];
 188                         }
 189
 190                         if (($gcontact['network'] == "") || ($gcontact['network'] == NETWORK_OSTATUS)) {
 191                                 $r = q(
 192                                         "SELECT `network`, `url` FROM `contact` WHERE `uid` = 0 AND `alias` IN ('%s', '%s') AND `network` != '' AND `network` != '%s' LIMIT 1",
 193                                         dbesc($gcontact['url']),
 194                                         dbesc(normalise_link($gcontact['url'])),
 195                                         dbesc(NETWORK_STATUSNET)
 196                                 );
 197                                 if (DBM::is_result($r)) {
 198                                         $gcontact['network'] = $r[0]["network"];
 199                                 }
 200                         }
 201                 }
 202
 203                 $gcontact['server_url'] = '';
 204                 $gcontact['network'] = '';
 205
 206                 $x = q(
 207                         "SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
 208                         dbesc(normalise_link($gcontact['url']))
 209                 );
 210
 211                 if (DBM::is_result($x)) {
 212                         if (!isset($gcontact['network']) && ($x[0]["network"] != NETWORK_STATUSNET)) {
 213                                 $gcontact['network'] = $x[0]["network"];
 214                         }
 215                         if ($gcontact['updated'] <= NULL_DATE) {
 216                                 $gcontact['updated'] = $x[0]["updated"];
 217                         }
 218                         if (!isset($gcontact['server_url']) && (normalise_link($x[0]["server_url"]) != normalise_link($x[0]["url"]))) {
 219                                 $gcontact['server_url'] = $x[0]["server_url"];
 220                         }
 221                         if (!isset($gcontact['addr'])) {
 222                                 $gcontact['addr'] = $x[0]["addr"];
 223                         }
 224                 }
 225
 226                 if ((!isset($gcontact['network']) || !isset($gcontact['name']) || !isset($gcontact['addr']) || !isset($gcontact['photo']) || !isset($gcontact['server_url']) || $alternate)
 227                         && PortableContact::reachable($gcontact['url'], $gcontact['server_url'], $gcontact['network'], false)
 228                 ) {
 229                         $data = Probe::uri($gcontact['url']);
 230
 231                         if ($data["network"] == NETWORK_PHANTOM) {
 232                                 throw new Exception('Probing for URL '.$gcontact['url'].' failed');
 233                         }
 234
 235                         $orig_profile = $gcontact['url'];
 236
 237                         $gcontact["server_url"] = $data["baseurl"];
 238
 239                         $gcontact = array_merge($gcontact, $data);
 240
 241                         if ($alternate && ($gcontact['network'] == NETWORK_OSTATUS)) {
 242                                 // Delete the old entry - if it exists
 243                                 $r = q("SELECT `id` FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($orig_profile)));
 244                                 if (DBM::is_result($r)) {
 245                                         q("DELETE FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($orig_profile)));
 246                                         q("DELETE FROM `glink` WHERE `gcid` = %d", intval($r[0]["id"]));
 247                                 }
 248                         }
 249                 }
 250
 251                 if (!isset($gcontact['name']) || !isset($gcontact['photo'])) {
 252                         throw new Exception('No name and photo for URL '.$gcontact['url']);
 253                 }
 254
 255                 if (!in_array($gcontact['network'], [NETWORK_DFRN, NETWORK_OSTATUS, NETWORK_DIASPORA])) {
 256                         throw new Exception('No federated network ('.$gcontact['network'].') detected for URL '.$gcontact['url']);
 257                 }
 258
 259                 if (!isset($gcontact['server_url'])) {
 260                         // We check the server url to be sure that it is a real one
 261                         $server_url = PortableContact::detectServer($gcontact['url']);
 262
 263                         // We are now sure that it is a correct URL. So we use it in the future
 264                         if ($server_url != "") {
 265                                 $gcontact['server_url'] = $server_url;
 266                         }
 267                 }
 268
 269                 // The server URL doesn't seem to be valid, so we don't store it.
 270                 if (!PortableContact::checkServer($gcontact['server_url'], $gcontact['network'])) {
 271                         $gcontact['server_url'] = "";
 272                 }
 273
 274                 return $gcontact;
 275         }
 276
 277         /**
 278          * @param integer $uid id
 279          * @param integer $cid id
 280          * @return integer
 281          */
 282         public static function countCommonFriends($uid, $cid)
 283         {
 284                 $r = q(
 285                         "SELECT count(*) as `total`
 286                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 287                         WHERE `glink`.`cid` = %d AND `glink`.`uid` = %d AND
 288                         ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR
 289                         (`gcontact`.`updated` >= `gcontact`.`last_failure`))
 290                         AND `gcontact`.`nurl` IN (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 and id != %d ) ",
 291                         intval($cid),
 292                         intval($uid),
 293                         intval($uid),
 294                         intval($cid)
 295                 );
 296
 297                 // logger("countCommonFriends: $uid $cid {$r[0]['total']}");
 298                 if (DBM::is_result($r)) {
 299                         return $r[0]['total'];
 300                 }
 301                 return 0;
 302         }
 303
 304         /**
 305          * @param integer $uid  id
 306          * @param integer $zcid zcid
 307          * @return integer
 308          */
 309         public static function countCommonFriendsZcid($uid, $zcid)
 310         {
 311                 $r = q(
 312                         "SELECT count(*) as `total`
 313                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 314                         where `glink`.`zcid` = %d
 315                         and `gcontact`.`nurl` in (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 ) ",
 316                         intval($zcid),
 317                         intval($uid)
 318                 );
 319
 320                 if (DBM::is_result($r)) {
 321                         return $r[0]['total'];
 322                 }
 323
 324                 return 0;
 325         }
 326
 327         /**
 328          * @param integer $uid     user
 329          * @param integer $cid     cid
 330          * @param integer $start   optional, default 0
 331          * @param integer $limit   optional, default 9999
 332          * @param boolean $shuffle optional, default false
 333          * @return object
 334          */
 335         public static function commonFriends($uid, $cid, $start = 0, $limit = 9999, $shuffle = false)
 336         {
 337                 if ($shuffle) {
 338                         $sql_extra = " order by rand() ";
 339                 } else {
 340                         $sql_extra = " order by `gcontact`.`name` asc ";
 341                 }
 342
 343                 $r = q(
 344                         "SELECT `gcontact`.*, `contact`.`id` AS `cid`
 345                         FROM `glink`
 346                         INNER JOIN `gcontact` ON `glink`.`gcid` = `gcontact`.`id`
 347                         INNER JOIN `contact` ON `gcontact`.`nurl` = `contact`.`nurl`
 348                         WHERE `glink`.`cid` = %d and `glink`.`uid` = %d
 349                                 AND `contact`.`uid` = %d AND `contact`.`self` = 0 AND `contact`.`blocked` = 0
 350                                 AND `contact`.`hidden` = 0 AND `contact`.`id` != %d
 351                                 AND ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
 352                                 $sql_extra LIMIT %d, %d",
 353                         intval($cid),
 354                         intval($uid),
 355                         intval($uid),
 356                         intval($cid),
 357                         intval($start),
 358                         intval($limit)
 359                 );
 360
 361                 /// @TODO Check all calling-findings of this function if they properly use DBM::is_result()
 362                 return $r;
 363         }
 364
 365         /**
 366          * @param integer $uid     user
 367          * @param integer $zcid    zcid
 368          * @param integer $start   optional, default 0
 369          * @param integer $limit   optional, default 9999
 370          * @param boolean $shuffle optional, default false
 371          * @return object
 372          */
 373         public static function commonFriendsZcid($uid, $zcid, $start = 0, $limit = 9999, $shuffle = false)
 374         {
 375                 if ($shuffle) {
 376                         $sql_extra = " order by rand() ";
 377                 } else {
 378                         $sql_extra = " order by `gcontact`.`name` asc ";
 379                 }
 380
 381                 $r = q(
 382                         "SELECT `gcontact`.*
 383                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 384                         where `glink`.`zcid` = %d
 385                         and `gcontact`.`nurl` in (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 )
 386                         $sql_extra limit %d, %d",
 387                         intval($zcid),
 388                         intval($uid),
 389                         intval($start),
 390                         intval($limit)
 391                 );
 392
 393                 /// @TODO Check all calling-findings of this function if they properly use DBM::is_result()
 394                 return $r;
 395         }
 396
 397         /**
 398          * @param integer $uid user
 399          * @param integer $cid cid
 400          * @return integer
 401          */
 402         public static function countAllFriends($uid, $cid)
 403         {
 404                 $r = q(
 405                         "SELECT count(*) as `total`
 406                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 407                         where `glink`.`cid` = %d and `glink`.`uid` = %d AND
 408                         ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))",
 409                         intval($cid),
 410                         intval($uid)
 411                 );
 412
 413                 if (DBM::is_result($r)) {
 414                         return $r[0]['total'];
 415                 }
 416
 417                 return 0;
 418         }
 419
 420         /**
 421          * @param integer $uid   user
 422          * @param integer $cid   cid
 423          * @param integer $start optional, default 0
 424          * @param integer $limit optional, default 80
 425          * @return array
 426          */
 427         public static function allFriends($uid, $cid, $start = 0, $limit = 80)
 428         {
 429                 $r = q(
 430                         "SELECT `gcontact`.*, `contact`.`id` AS `cid`
 431                         FROM `glink`
 432                         INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 433                         LEFT JOIN `contact` ON `contact`.`nurl` = `gcontact`.`nurl` AND `contact`.`uid` = %d
 434                         WHERE `glink`.`cid` = %d AND `glink`.`uid` = %d AND
 435                         ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
 436                         ORDER BY `gcontact`.`name` ASC LIMIT %d, %d ",
 437                         intval($uid),
 438                         intval($cid),
 439                         intval($uid),
 440                         intval($start),
 441                         intval($limit)
 442                 );
 443
 444                 /// @TODO Check all calling-findings of this function if they properly use DBM::is_result()
 445                 return $r;
 446         }
 447
 448         /**
 449          * @param object  $uid   user
 450          * @param integer $start optional, default 0
 451          * @param integer $limit optional, default 80
 452          * @return array
 453          */
 454         public static function suggestionQuery($uid, $start = 0, $limit = 80)
 455         {
 456                 if (!$uid) {
 457                         return [];
 458                 }
 459
 460                 /*
 461                 * Uncommented because the result of the queries are to big to store it in the cache.
 462                 * We need to decide if we want to change the db column type or if we want to delete it.
 463                 */
 464                 //$list = Cache::get("suggestion_query:".$uid.":".$start.":".$limit);
 465                 //if (!is_null($list)) {
 466                 //      return $list;
 467                 //}
 468
 469                 $network = [NETWORK_DFRN];
 470
 471                 if (Config::get('system', 'diaspora_enabled')) {
 472                         $network[] = NETWORK_DIASPORA;
 473                 }
 474
 475                 if (!Config::get('system', 'ostatus_disabled')) {
 476                         $network[] = NETWORK_OSTATUS;
 477                 }
 478
 479                 $sql_network = implode("', '", $network);
 480                 $sql_network = "'".$sql_network."'";
 481
 482                 /// @todo This query is really slow
 483                 // By now we cache the data for five minutes
 484                 $r = q(
 485                         "SELECT count(glink.gcid) as `total`, gcontact.* from gcontact
 486                         INNER JOIN `glink` ON `glink`.`gcid` = `gcontact`.`id`
 487                         where uid = %d and not gcontact.nurl in ( select nurl from contact where uid = %d )
 488                         AND NOT `gcontact`.`name` IN (SELECT `name` FROM `contact` WHERE `uid` = %d)
 489                         AND NOT `gcontact`.`id` IN (SELECT `gcid` FROM `gcign` WHERE `uid` = %d)
 490                         AND `gcontact`.`updated` >= '%s'
 491                         AND `gcontact`.`last_contact` >= `gcontact`.`last_failure`
 492                         AND `gcontact`.`network` IN (%s)
 493                         GROUP BY `glink`.`gcid` ORDER BY `gcontact`.`updated` DESC,`total` DESC LIMIT %d, %d",
 494                         intval($uid),
 495                         intval($uid),
 496                         intval($uid),
 497                         intval($uid),
 498                         dbesc(NULL_DATE),
 499                         $sql_network,
 500                         intval($start),
 501                         intval($limit)
 502                 );
 503
 504                 if (DBM::is_result($r) && count($r) >= ($limit -1)) {
 505                         /*
 506                         * Uncommented because the result of the queries are to big to store it in the cache.
 507                         * We need to decide if we want to change the db column type or if we want to delete it.
 508                         */
 509                         //Cache::set("suggestion_query:".$uid.":".$start.":".$limit, $r, CACHE_FIVE_MINUTES);
 510
 511                         return $r;
 512                 }
 513
 514                 $r2 = q(
 515                         "SELECT gcontact.* FROM gcontact
 516                         INNER JOIN `glink` ON `glink`.`gcid` = `gcontact`.`id`
 517                         WHERE `glink`.`uid` = 0 AND `glink`.`cid` = 0 AND `glink`.`zcid` = 0 AND NOT `gcontact`.`nurl` IN (SELECT `nurl` FROM `contact` WHERE `uid` = %d)
 518                         AND NOT `gcontact`.`name` IN (SELECT `name` FROM `contact` WHERE `uid` = %d)
 519                         AND NOT `gcontact`.`id` IN (SELECT `gcid` FROM `gcign` WHERE `uid` = %d)
 520                         AND `gcontact`.`updated` >= '%s'
 521                         AND `gcontact`.`last_contact` >= `gcontact`.`last_failure`
 522                         AND `gcontact`.`network` IN (%s)
 523                         ORDER BY rand() LIMIT %d, %d",
 524                         intval($uid),
 525                         intval($uid),
 526                         intval($uid),
 527                         dbesc(NULL_DATE),
 528                         $sql_network,
 529                         intval($start),
 530                         intval($limit)
 531                 );
 532
 533                 $list = [];
 534                 foreach ($r2 as $suggestion) {
 535                         $list[$suggestion["nurl"]] = $suggestion;
 536                 }
 537
 538                 foreach ($r as $suggestion) {
 539                         $list[$suggestion["nurl"]] = $suggestion;
 540                 }
 541
 542                 while (sizeof($list) > ($limit)) {
 543                         array_pop($list);
 544                 }
 545
 546                 /*
 547                 * Uncommented because the result of the queries are to big to store it in the cache.
 548                 * We need to decide if we want to change the db column type or if we want to delete it.
 549                 */
 550                 //Cache::set("suggestion_query:".$uid.":".$start.":".$limit, $list, CACHE_FIVE_MINUTES);
 551                 return $list;
 552         }
 553
 554         /**
 555          * @return void
 556          */
 557         public static function updateSuggestions()
 558         {
 559                 $a = get_app();
 560
 561                 $done = [];
 562
 563                 /// @TODO Check if it is really neccessary to poll the own server
 564                 PortableContact::loadWorker(0, 0, 0, System::baseUrl() . '/poco');
 565
 566                 $done[] = System::baseUrl() . '/poco';
 567
 568                 if (strlen(Config::get('system', 'directory'))) {
 569                         $x = Network::fetchUrl(get_server()."/pubsites");
 570                         if ($x) {
 571                                 $j = json_decode($x);
 572                                 if ($j->entries) {
 573                                         foreach ($j->entries as $entry) {
 574                                                 PortableContact::checkServer($entry->url);
 575
 576                                                 $url = $entry->url . '/poco';
 577                                                 if (! in_array($url, $done)) {
 578                                                         PortableContact::loadWorker(0, 0, 0, $entry->url . '/poco');
 579                                                 }
 580                                         }
 581                                 }
 582                         }
 583                 }
 584
 585                 // Query your contacts from Friendica and Redmatrix/Hubzilla for their contacts
 586                 $r = q(
 587                         "SELECT DISTINCT(`poco`) AS `poco` FROM `contact` WHERE `network` IN ('%s', '%s')",
 588                         dbesc(NETWORK_DFRN),
 589                         dbesc(NETWORK_DIASPORA)
 590                 );
 591
 592                 if (DBM::is_result($r)) {
 593                         foreach ($r as $rr) {
 594                                 $base = substr($rr['poco'], 0, strrpos($rr['poco'], '/'));
 595                                 if (! in_array($base, $done)) {
 596                                         PortableContact::loadWorker(0, 0, 0, $base);
 597                                 }
 598                         }
 599                 }
 600         }
 601
 602         /**
 603          * @brief Removes unwanted parts from a contact url
 604          *
 605          * @param string $url Contact url
 606          *
 607          * @return string Contact url with the wanted parts
 608          */
 609         public static function cleanContactUrl($url)
 610         {
 611                 $parts = parse_url($url);
 612
 613                 if (!isset($parts["scheme"]) || !isset($parts["host"])) {
 614                         return $url;
 615                 }
 616
 617                 $new_url = $parts["scheme"]."://".$parts["host"];
 618
 619                 if (isset($parts["port"])) {
 620                         $new_url .= ":".$parts["port"];
 621                 }
 622
 623                 if (isset($parts["path"])) {
 624                         $new_url .= $parts["path"];
 625                 }
 626
 627                 if ($new_url != $url) {
 628                         logger("Cleaned contact url ".$url." to ".$new_url." - Called by: ".System::callstack(), LOGGER_DEBUG);
 629                 }
 630
 631                 return $new_url;
 632         }
 633
 634         /**
 635          * @brief Replace alternate OStatus user format with the primary one
 636          *
 637          * @param array $contact contact array (called by reference)
 638          * @return void
 639          */
 640         public static function fixAlternateContactAddress(&$contact)
 641         {
 642                 if (($contact["network"] == NETWORK_OSTATUS) && PortableContact::alternateOStatusUrl($contact["url"])) {
 643                         $data = Probe::uri($contact["url"]);
 644                         if ($contact["network"] == NETWORK_OSTATUS) {
 645                                 logger("Fix primary url from ".$contact["url"]." to ".$data["url"]." - Called by: ".System::callstack(), LOGGER_DEBUG);
 646                                 $contact["url"] = $data["url"];
 647                                 $contact["addr"] = $data["addr"];
 648                                 $contact["alias"] = $data["alias"];
 649                                 $contact["server_url"] = $data["baseurl"];
 650                         }
 651                 }
 652         }
 653
 654         /**
 655          * @brief Fetch the gcontact id, add an entry if not existed
 656          *
 657          * @param array $contact contact array
 658          *
 659          * @return bool|int Returns false if not found, integer if contact was found
 660          */
 661         public static function getId($contact)
 662         {
 663                 $gcontact_id = 0;
 664                 $doprobing = false;
 665                 $last_failure_str = '';
 666                 $last_contact_str = '';
 667
 668                 if (in_array($contact["network"], [NETWORK_PHANTOM])) {
 669                         logger("Invalid network for contact url ".$contact["url"]." - Called by: ".System::callstack(), LOGGER_DEBUG);
 670                         return false;
 671                 }
 672
 673                 if ($contact["network"] == NETWORK_STATUSNET) {
 674                         $contact["network"] = NETWORK_OSTATUS;
 675                 }
 676
 677                 // All new contacts are hidden by default
 678                 if (!isset($contact["hide"])) {
 679                         $contact["hide"] = true;
 680                 }
 681
 682                 // Replace alternate OStatus user format with the primary one
 683                 self::fixAlternateContactAddress($contact);
 684
 685                 // Remove unwanted parts from the contact url (e.g. "?zrl=...")
 686                 if (in_array($contact["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])) {
 687                         $contact["url"] = self::cleanContactUrl($contact["url"]);
 688                 }
 689
 690                 dba::lock('gcontact');
 691                 $r = q(
 692                         "SELECT `id`, `last_contact`, `last_failure`, `network` FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
 693                         dbesc(normalise_link($contact["url"]))
 694                 );
 695
 696                 if (DBM::is_result($r)) {
 697                         $gcontact_id = $r[0]["id"];
 698
 699                         // Update every 90 days
 700                         if (in_array($r[0]["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
 701                                 $last_failure_str = $r[0]["last_failure"];
 702                                 $last_failure = strtotime($r[0]["last_failure"]);
 703                                 $last_contact_str = $r[0]["last_contact"];
 704                                 $last_contact = strtotime($r[0]["last_contact"]);
 705                                 $doprobing = (((time() - $last_contact) > (90 * 86400)) && ((time() - $last_failure) > (90 * 86400)));
 706                         }
 707                 } else {
 708                         q(
 709                                 "INSERT INTO `gcontact` (`name`, `nick`, `addr` , `network`, `url`, `nurl`, `photo`, `created`, `updated`, `location`, `about`, `hide`, `generation`)
 710                                 VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d)",
 711                                 dbesc($contact["name"]),
 712                                 dbesc($contact["nick"]),
 713                                 dbesc($contact["addr"]),
 714                                 dbesc($contact["network"]),
 715                                 dbesc($contact["url"]),
 716                                 dbesc(normalise_link($contact["url"])),
 717                                 dbesc($contact["photo"]),
 718                                 dbesc(DateTimeFormat::utcNow()),
 719                                 dbesc(DateTimeFormat::utcNow()),
 720                                 dbesc($contact["location"]),
 721                                 dbesc($contact["about"]),
 722                                 intval($contact["hide"]),
 723                                 intval($contact["generation"])
 724                         );
 725
 726                         $r = q(
 727                                 "SELECT `id`, `network` FROM `gcontact` WHERE `nurl` = '%s' ORDER BY `id` LIMIT 2",
 728                                 dbesc(normalise_link($contact["url"]))
 729                         );
 730
 731                         if (DBM::is_result($r)) {
 732                                 $gcontact_id = $r[0]["id"];
 733
 734                                 $doprobing = in_array($r[0]["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""]);
 735                         }
 736                 }
 737                 dba::unlock();
 738
 739                 if ($doprobing) {
 740                         logger("Last Contact: ". $last_contact_str." - Last Failure: ".$last_failure_str." - Checking: ".$contact["url"], LOGGER_DEBUG);
 741                         Worker::add(PRIORITY_LOW, 'GProbe', $contact["url"]);
 742                 }
 743
 744                 return $gcontact_id;
 745         }
 746
 747         /**
 748          * @brief Updates the gcontact table from a given array
 749          *
 750          * @param array $contact contact array
 751          *
 752          * @return bool|int Returns false if not found, integer if contact was found
 753          */
 754         public static function update($contact)
 755         {
 756                 // Check for invalid "contact-type" value
 757                 if (isset($contact['contact-type']) && (intval($contact['contact-type']) < 0)) {
 758                         $contact['contact-type'] = 0;
 759                 }
 760
 761                 /// @todo update contact table as well
 762
 763                 $gcontact_id = self::getId($contact);
 764
 765                 if (!$gcontact_id) {
 766                         return false;
 767                 }
 768
 769                 $public_contact = q(
 770                         "SELECT `name`, `nick`, `photo`, `location`, `about`, `addr`, `generation`, `birthday`, `gender`, `keywords`,
 771                                 `contact-type`, `hide`, `nsfw`, `network`, `alias`, `notify`, `server_url`, `connect`, `updated`, `url`
 772                         FROM `gcontact` WHERE `id` = %d LIMIT 1",
 773                         intval($gcontact_id)
 774                 );
 775
 776                 // Get all field names
 777                 $fields = [];
 778                 foreach ($public_contact[0] as $field => $data) {
 779                         $fields[$field] = $data;
 780                 }
 781
 782                 unset($fields["url"]);
 783                 unset($fields["updated"]);
 784                 unset($fields["hide"]);
 785
 786                 // Bugfix: We had an error in the storing of keywords which lead to the "0"
 787                 // This value is still transmitted via poco.
 788                 if ($contact["keywords"] == "0") {
 789                         unset($contact["keywords"]);
 790                 }
 791
 792                 if ($public_contact[0]["keywords"] == "0") {
 793                         $public_contact[0]["keywords"] = "";
 794                 }
 795
 796                 // assign all unassigned fields from the database entry
 797                 foreach ($fields as $field => $data) {
 798                         if (!isset($contact[$field]) || ($contact[$field] == "")) {
 799                                 $contact[$field] = $public_contact[0][$field];
 800                         }
 801                 }
 802
 803                 if (!isset($contact["hide"])) {
 804                         $contact["hide"] = $public_contact[0]["hide"];
 805                 }
 806
 807                 $fields["hide"] = $public_contact[0]["hide"];
 808
 809                 if ($contact["network"] == NETWORK_STATUSNET) {
 810                         $contact["network"] = NETWORK_OSTATUS;
 811                 }
 812
 813                 // Replace alternate OStatus user format with the primary one
 814                 self::fixAlternateContactAddress($contact);
 815
 816                 if (!isset($contact["updated"])) {
 817                         $contact["updated"] = DBM::date();
 818                 }
 819
 820                 if ($contact["network"] == NETWORK_TWITTER) {
 821                         $contact["server_url"] = 'http://twitter.com';
 822                 }
 823
 824                 if ($contact["server_url"] == "") {
 825                         $data = Probe::uri($contact["url"]);
 826                         if ($data["network"] != NETWORK_PHANTOM) {
 827                                 $contact["server_url"] = $data['baseurl'];
 828                         }
 829                 } else {
 830                         $contact["server_url"] = normalise_link($contact["server_url"]);
 831                 }
 832
 833                 if (($contact["addr"] == "") && ($contact["server_url"] != "") && ($contact["nick"] != "")) {
 834                         $hostname = str_replace("http://", "", $contact["server_url"]);
 835                         $contact["addr"] = $contact["nick"]."@".$hostname;
 836                 }
 837
 838                 // Check if any field changed
 839                 $update = false;
 840                 unset($fields["generation"]);
 841
 842                 if ((($contact["generation"] > 0) && ($contact["generation"] <= $public_contact[0]["generation"])) || ($public_contact[0]["generation"] == 0)) {
 843                         foreach ($fields as $field => $data) {
 844                                 if ($contact[$field] != $public_contact[0][$field]) {
 845                                         logger("Difference for contact ".$contact["url"]." in field '".$field."'. New value: '".$contact[$field]."', old value '".$public_contact[0][$field]."'", LOGGER_DEBUG);
 846                                         $update = true;
 847                                 }
 848                         }
 849
 850                         if ($contact["generation"] < $public_contact[0]["generation"]) {
 851                                 logger("Difference for contact ".$contact["url"]." in field 'generation'. new value: '".$contact["generation"]."', old value '".$public_contact[0]["generation"]."'", LOGGER_DEBUG);
 852                                 $update = true;
 853                         }
 854                 }
 855
 856                 if ($update) {
 857                         logger("Update gcontact for ".$contact["url"], LOGGER_DEBUG);
 858                         $condition = ['`nurl` = ? AND (`generation` = 0 OR `generation` >= ?)',
 859                                         normalise_link($contact["url"]), $contact["generation"]];
 860                         $contact["updated"] = DBM::date($contact["updated"]);
 861
 862                         $updated = ['photo' => $contact['photo'], 'name' => $contact['name'],
 863                                         'nick' => $contact['nick'], 'addr' => $contact['addr'],
 864                                         'network' => $contact['network'], 'birthday' => $contact['birthday'],
 865                                         'gender' => $contact['gender'], 'keywords' => $contact['keywords'],
 866                                         'hide' => $contact['hide'], 'nsfw' => $contact['nsfw'],
 867                                         'contact-type' => $contact['contact-type'], 'alias' => $contact['alias'],
 868                                         'notify' => $contact['notify'], 'url' => $contact['url'],
 869                                         'location' => $contact['location'], 'about' => $contact['about'],
 870                                         'generation' => $contact['generation'], 'updated' => $contact['updated'],
 871                                         'server_url' => $contact['server_url'], 'connect' => $contact['connect']];
 872
 873                         dba::update('gcontact', $updated, $condition, $fields);
 874
 875                         // Now update the contact entry with the user id "0" as well.
 876                         // This is used for the shadow copies of public items.
 877
 878                         $public_contact = dba::selectFirst('contact', ['id'], ['nurl' => normalise_link($contact["url"]), 'uid' => 0]);
 879                         if (DBM::is_result($public_contact)) {
 880                                 logger("Update public contact ".$public_contact["id"], LOGGER_DEBUG);
 881
 882                                 Contact::updateAvatar($contact["photo"], 0, $public_contact["id"]);
 883
 884                                 $fields = ['name', 'nick', 'addr',
 885                                                 'network', 'bd', 'gender',
 886                                                 'keywords', 'alias', 'contact-type',
 887                                                 'url', 'location', 'about'];
 888                                 $old_contact = dba::selectFirst('contact', $fields, ['id' => $public_contact["id"]]);
 889
 890                                 // Update it with the current values
 891                                 $fields = ['name' => $contact['name'], 'nick' => $contact['nick'],
 892                                                 'addr' => $contact['addr'], 'network' => $contact['network'],
 893                                                 'bd' => $contact['birthday'], 'gender' => $contact['gender'],
 894                                                 'keywords' => $contact['keywords'], 'alias' => $contact['alias'],
 895                                                 'contact-type' => $contact['contact-type'], 'url' => $contact['url'],
 896                                                 'location' => $contact['location'], 'about' => $contact['about']];
 897
 898                                 dba::update('contact', $fields, ['id' => $public_contact["id"]], $old_contact);
 899                         }
 900                 }
 901
 902                 return $gcontact_id;
 903         }
 904
 905         /**
 906          * @brief Updates the gcontact entry from probe
 907          *
 908          * @param string $url profile link
 909          * @return void
 910          */
 911         public static function updateFromProbe($url)
 912         {
 913                 $data = Probe::uri($url);
 914
 915                 if (in_array($data["network"], [NETWORK_PHANTOM])) {
 916                         logger("Invalid network for contact url ".$data["url"]." - Called by: ".System::callstack(), LOGGER_DEBUG);
 917                         return;
 918                 }
 919
 920                 $data["server_url"] = $data["baseurl"];
 921
 922                 self::update($data);
 923         }
 924
 925         /**
 926          * @brief Update the gcontact entry for a given user id
 927          *
 928          * @param int $uid User ID
 929          * @return void
 930          */
 931         public static function updateForUser($uid)
 932         {
 933                 $r = q(
 934                         "SELECT `profile`.`locality`, `profile`.`region`, `profile`.`country-name`,
 935                                 `profile`.`name`, `profile`.`about`, `profile`.`gender`,
 936                                 `profile`.`pub_keywords`, `profile`.`dob`, `profile`.`photo`,
 937                                 `profile`.`net-publish`, `user`.`nickname`, `user`.`hidewall`,
 938                                 `contact`.`notify`, `contact`.`url`, `contact`.`addr`
 939                         FROM `profile`
 940                                 INNER JOIN `user` ON `user`.`uid` = `profile`.`uid`
 941                                 INNER JOIN `contact` ON `contact`.`uid` = `profile`.`uid`
 942                         WHERE `profile`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self`",
 943                         intval($uid)
 944                 );
 945
 946                 $location = Profile::formatLocation(
 947                         ["locality" => $r[0]["locality"], "region" => $r[0]["region"], "country-name" => $r[0]["country-name"]]
 948                 );
 949
 950                 // The "addr" field was added in 3.4.3 so it can be empty for older users
 951                 if ($r[0]["addr"] != "") {
 952                         $addr = $r[0]["nickname"].'@'.str_replace(["http://", "https://"], "", System::baseUrl());
 953                 } else {
 954                         $addr = $r[0]["addr"];
 955                 }
 956
 957                 $gcontact = ["name" => $r[0]["name"], "location" => $location, "about" => $r[0]["about"],
 958                                 "gender" => $r[0]["gender"], "keywords" => $r[0]["pub_keywords"],
 959                                 "birthday" => $r[0]["dob"], "photo" => $r[0]["photo"],
 960                                 "notify" => $r[0]["notify"], "url" => $r[0]["url"],
 961                                 "hide" => ($r[0]["hidewall"] || !$r[0]["net-publish"]),
 962                                 "nick" => $r[0]["nickname"], "addr" => $addr,
 963                                 "connect" => $addr, "server_url" => System::baseUrl(),
 964                                 "generation" => 1, "network" => NETWORK_DFRN];
 965
 966                 self::update($gcontact);
 967         }
 968
 969         /**
 970          * @brief Fetches users of given GNU Social server
 971          *
 972          * If the "Statistics" addon is enabled (See http://gstools.org/ for details) we query user data with this.
 973          *
 974          * @param string $server Server address
 975          * @return void
 976          */
 977         public static function fetchGsUsers($server)
 978         {
 979                 logger("Fetching users from GNU Social server ".$server, LOGGER_DEBUG);
 980
 981                 $url = $server."/main/statistics";
 982
 983                 $result = Network::curl($url);
 984                 if (!$result["success"]) {
 985                         return false;
 986                 }
 987
 988                 $statistics = json_decode($result["body"]);
 989
 990                 if (is_object($statistics->config)) {
 991                         if ($statistics->config->instance_with_ssl) {
 992                                 $server = "https://";
 993                         } else {
 994                                 $server = "http://";
 995                         }
 996
 997                         $server .= $statistics->config->instance_address;
 998
 999                         $hostname = $statistics->config->instance_address;
1000                 } else {
1001                         /// @TODO is_object() above means here no object, still $statistics is being used as object
1002                         if ($statistics->instance_with_ssl) {
1003                                 $server = "https://";
1004                         } else {
1005                                 $server = "http://";
1006                         }
1007
1008                         $server .= $statistics->instance_address;
1009
1010                         $hostname = $statistics->instance_address;
1011                 }
1012
1013                 if (is_object($statistics->users)) {
1014                         foreach ($statistics->users as $nick => $user) {
1015                                 $profile_url = $server."/".$user->nickname;
1016
1017                                 $contact = ["url" => $profile_url,
1018                                                 "name" => $user->fullname,
1019                                                 "addr" => $user->nickname."@".$hostname,
1020                                                 "nick" => $user->nickname,
1021                                                 "about" => $user->bio,
1022                                                 "network" => NETWORK_OSTATUS,
1023                                                 "photo" => System::baseUrl()."/images/person-175.jpg"];
1024                                 self::getId($contact);
1025                         }
1026                 }
1027         }
1028
1029         /**
1030          * @brief Asking GNU Social server on a regular base for their user data
1031          * @return void
1032          */
1033         public static function discoverGsUsers()
1034         {
1035                 $requery_days = intval(Config::get("system", "poco_requery_days"));
1036
1037                 $last_update = date("c", time() - (60 * 60 * 24 * $requery_days));
1038
1039                 $r = q(
1040                         "SELECT `nurl`, `url` FROM `gserver` WHERE `last_contact` >= `last_failure` AND `network` = '%s' AND `last_poco_query` < '%s' ORDER BY RAND() LIMIT 5",
1041                         dbesc(NETWORK_OSTATUS),
1042                         dbesc($last_update)
1043                 );
1044
1045                 if (!DBM::is_result($r)) {
1046                         return;
1047                 }
1048
1049                 foreach ($r as $server) {
1050                         self::fetchGsUsers($server["url"]);
1051                         q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(DateTimeFormat::utcNow()), dbesc($server["nurl"]));
1052                 }
1053         }
1054
1055         /**
1056          * @return string
1057          */
1058         public static function getRandomUrl()
1059         {
1060                 $r = q(
1061                         "SELECT `url` FROM `gcontact` WHERE `network` = '%s'
1062                                         AND `last_contact` >= `last_failure`
1063                                         AND `updated` > UTC_TIMESTAMP - INTERVAL 1 MONTH
1064                                 ORDER BY rand() LIMIT 1",
1065                         dbesc(NETWORK_DFRN)
1066                 );
1067
1068                 if (DBM::is_result($r)) {
1069                         return dirname($r[0]['url']);
1070                 }
1071
1072                 return '';
1073         }
1074 }