src/Model/GlobalContact.php

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