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\Contact;
  14 use Friendica\Object\Profile;
  15 use Friendica\Protocol\PortableContact;
  16 use dba;
  17 use Exception;
  18
  19 require_once 'include/datetime.php';
  20 require_once 'include/network.php';
  21 require_once 'include/html2bbcode.php';
  22
  23 /**
  24  * @brief This class handles GlobalContact related functions
  25  */
  26 class GlobalContact
  27 {
  28         /**
  29          * @brief Search global contact table by nick or name
  30          *
  31          * @param string $search Name or nick
  32          * @param string $mode   Search mode (e.g. "community")
  33          *
  34          * @return array with search results
  35          */
  36         public static function searchByName($search, $mode = '')
  37         {
  38                 if ($search) {
  39                         // check supported networks
  40                         if (Config::get('system', 'diaspora_enabled')) {
  41                                 $diaspora = NETWORK_DIASPORA;
  42                         } else {
  43                                 $diaspora = NETWORK_DFRN;
  44                         }
  45
  46                         if (!Config::get('system', 'ostatus_disabled')) {
  47                                 $ostatus = NETWORK_OSTATUS;
  48                         } else {
  49                                 $ostatus = NETWORK_DFRN;
  50                         }
  51
  52                         // check if we search only communities or every contact
  53                         if ($mode === "community") {
  54                                 $extra_sql = " AND `community`";
  55                         } else {
  56                                 $extra_sql = "";
  57                         }
  58
  59                         $search .= "%";
  60
  61                         $results = q(
  62                                 "SELECT `contact`.`id` AS `cid`, `gcontact`.`url`, `gcontact`.`name`, `gcontact`.`nick`, `gcontact`.`photo`,
  63                                                 `gcontact`.`network`, `gcontact`.`keywords`, `gcontact`.`addr`, `gcontact`.`community`
  64                                 FROM `gcontact`
  65                                 LEFT JOIN `contact` ON `contact`.`nurl` = `gcontact`.`nurl`
  66                                         AND `contact`.`uid` = %d AND NOT `contact`.`blocked`
  67                                         AND NOT `contact`.`pending` AND `contact`.`rel` IN ('%s', '%s')
  68                                 WHERE (`contact`.`id` > 0 OR (NOT `gcontact`.`hide` AND `gcontact`.`network` IN ('%s', '%s', '%s') AND
  69                                 ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR
  70                                 (`gcontact`.`updated` >= `gcontact`.`last_failure`)))) AND
  71                                 (`gcontact`.`addr` LIKE '%s' OR `gcontact`.`name` LIKE '%s' OR `gcontact`.`nick` LIKE '%s') $extra_sql
  72                                         GROUP BY `gcontact`.`nurl`
  73                                         ORDER BY `gcontact`.`nurl` DESC
  74                                         LIMIT 1000",
  75                                 intval(local_user()),
  76                                 dbesc(CONTACT_IS_SHARING),
  77                                 dbesc(CONTACT_IS_FRIEND),
  78                                 dbesc(NETWORK_DFRN),
  79                                 dbesc($ostatus),
  80                                 dbesc($diaspora),
  81                                 dbesc(escape_tags($search)),
  82                                 dbesc(escape_tags($search)),
  83                                 dbesc(escape_tags($search))
  84                         );
  85
  86                         return $results;
  87                 }
  88         }
  89
  90         /**
  91          * @brief Link the gcontact entry with user, contact and global contact
  92          *
  93          * @param integer $gcid Global contact ID
  94          * @param integer $uid  User ID
  95          * @param integer $cid  Contact ID
  96          * @param integer $zcid Global Contact ID
  97          * @return void
  98          */
  99         public static function link($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          * @return array $gcontact
 147          */
 148         public static function sanitize($gcontact)
 149         {
 150                 if ($gcontact['url'] == "") {
 151                         throw new Exception('URL is empty');
 152                 }
 153
 154                 $urlparts = parse_url($gcontact['url']);
 155                 if (!isset($urlparts["scheme"])) {
 156                         throw new Exception("This (".$gcontact['url'].") doesn't seem to be an url.");
 157                 }
 158
 159                 if (in_array($urlparts["host"], array("www.facebook.com", "facebook.com", "twitter.com", "identi.ca", "alpha.app.net"))) {
 160                         throw new Exception('Contact from a non federated network ignored. ('.$gcontact['url'].')');
 161                 }
 162
 163                 // Don't store the statusnet connector as network
 164                 // We can't simply set this to NETWORK_OSTATUS since the connector could have fetched posts from friendica as well
 165                 if ($gcontact['network'] == NETWORK_STATUSNET) {
 166                         $gcontact['network'] = "";
 167                 }
 168
 169                 // Assure that there are no parameter fragments in the profile url
 170                 if (in_array($gcontact['network'], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""))) {
 171                         $gcontact['url'] = self::cleanContactUrl($gcontact['url']);
 172                 }
 173
 174                 $alternate = PortableContact::alternateOStatusUrl($gcontact['url']);
 175
 176                 // The global contacts should contain the original picture, not the cached one
 177                 if (($gcontact['generation'] != 1) && stristr(normalise_link($gcontact['photo']), normalise_link(System::baseUrl()."/photo/"))) {
 178                         $gcontact['photo'] = "";
 179                 }
 180
 181                 if (!isset($gcontact['network'])) {
 182                         $r = q(
 183                                 "SELECT `network` FROM `contact` WHERE `uid` = 0 AND `nurl` = '%s' AND `network` != '' AND `network` != '%s' LIMIT 1",
 184                                 dbesc(normalise_link($gcontact['url'])),
 185                                 dbesc(NETWORK_STATUSNET)
 186                         );
 187                         if (DBM::is_result($r)) {
 188                                 $gcontact['network'] = $r[0]["network"];
 189                         }
 190
 191                         if (($gcontact['network'] == "") || ($gcontact['network'] == NETWORK_OSTATUS)) {
 192                                 $r = q(
 193                                         "SELECT `network`, `url` FROM `contact` WHERE `uid` = 0 AND `alias` IN ('%s', '%s') AND `network` != '' AND `network` != '%s' LIMIT 1",
 194                                         dbesc($gcontact['url']),
 195                                         dbesc(normalise_link($gcontact['url'])),
 196                                         dbesc(NETWORK_STATUSNET)
 197                                 );
 198                                 if (DBM::is_result($r)) {
 199                                         $gcontact['network'] = $r[0]["network"];
 200                                 }
 201                         }
 202                 }
 203
 204                 $gcontact['server_url'] = '';
 205                 $gcontact['network'] = '';
 206
 207                 $x = q(
 208                         "SELECT * FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
 209                         dbesc(normalise_link($gcontact['url']))
 210                 );
 211
 212                 if (DBM::is_result($x)) {
 213                         if (!isset($gcontact['network']) && ($x[0]["network"] != NETWORK_STATUSNET)) {
 214                                 $gcontact['network'] = $x[0]["network"];
 215                         }
 216                         if ($gcontact['updated'] <= NULL_DATE) {
 217                                 $gcontact['updated'] = $x[0]["updated"];
 218                         }
 219                         if (!isset($gcontact['server_url']) && (normalise_link($x[0]["server_url"]) != normalise_link($x[0]["url"]))) {
 220                                 $gcontact['server_url'] = $x[0]["server_url"];
 221                         }
 222                         if (!isset($gcontact['addr'])) {
 223                                 $gcontact['addr'] = $x[0]["addr"];
 224                         }
 225                 }
 226
 227                 if ((!isset($gcontact['network']) || !isset($gcontact['name']) || !isset($gcontact['addr']) || !isset($gcontact['photo']) || !isset($gcontact['server_url']) || $alternate)
 228                         && PortableContact::reachable($gcontact['url'], $gcontact['server_url'], $gcontact['network'], false)
 229                 ) {
 230                         $data = Probe::uri($gcontact['url']);
 231
 232                         if ($data["network"] == NETWORK_PHANTOM) {
 233                                 throw new Exception('Probing for URL '.$gcontact['url'].' failed');
 234                         }
 235
 236                         $orig_profile = $gcontact['url'];
 237
 238                         $gcontact["server_url"] = $data["baseurl"];
 239
 240                         $gcontact = array_merge($gcontact, $data);
 241
 242                         if ($alternate && ($gcontact['network'] == NETWORK_OSTATUS)) {
 243                                 // Delete the old entry - if it exists
 244                                 $r = q("SELECT `id` FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($orig_profile)));
 245                                 if (DBM::is_result($r)) {
 246                                         q("DELETE FROM `gcontact` WHERE `nurl` = '%s'", dbesc(normalise_link($orig_profile)));
 247                                         q("DELETE FROM `glink` WHERE `gcid` = %d", intval($r[0]["id"]));
 248                                 }
 249                         }
 250                 }
 251
 252                 if (!isset($gcontact['name']) || !isset($gcontact['photo'])) {
 253                         throw new Exception('No name and photo for URL '.$gcontact['url']);
 254                 }
 255
 256                 if (!in_array($gcontact['network'], array(NETWORK_DFRN, NETWORK_OSTATUS, NETWORK_DIASPORA))) {
 257                         throw new Exception('No federated network ('.$gcontact['network'].') detected for URL '.$gcontact['url']);
 258                 }
 259
 260                 if (!isset($gcontact['server_url'])) {
 261                         // We check the server url to be sure that it is a real one
 262                         $server_url = PortableContact::detectServer($gcontact['url']);
 263
 264                         // We are now sure that it is a correct URL. So we use it in the future
 265                         if ($server_url != "") {
 266                                 $gcontact['server_url'] = $server_url;
 267                         }
 268                 }
 269
 270                 // The server URL doesn't seem to be valid, so we don't store it.
 271                 if (!PortableContact::checkServer($gcontact['server_url'], $gcontact['network'])) {
 272                         $gcontact['server_url'] = "";
 273                 }
 274
 275                 return $gcontact;
 276         }
 277
 278         /**
 279          * @param integer $uid id
 280          * @param integer $cid id
 281          * @return integer
 282          */
 283         public static function countCommonFriends($uid, $cid)
 284         {
 285                 $r = q(
 286                         "SELECT count(*) as `total`
 287                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 288                         WHERE `glink`.`cid` = %d AND `glink`.`uid` = %d AND
 289                         ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR
 290                         (`gcontact`.`updated` >= `gcontact`.`last_failure`))
 291                         AND `gcontact`.`nurl` IN (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 and id != %d ) ",
 292                         intval($cid),
 293                         intval($uid),
 294                         intval($uid),
 295                         intval($cid)
 296                 );
 297
 298                 // logger("countCommonFriends: $uid $cid {$r[0]['total']}");
 299                 if (DBM::is_result($r)) {
 300                         return $r[0]['total'];
 301                 }
 302                 return 0;
 303         }
 304
 305         /**
 306          * @param integer $uid  id
 307          * @param integer $zcid zcid
 308          * @return integer
 309          */
 310         public static function countCommonFriendsZcid($uid, $zcid)
 311         {
 312                 $r = q(
 313                         "SELECT count(*) as `total`
 314                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 315                         where `glink`.`zcid` = %d
 316                         and `gcontact`.`nurl` in (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 ) ",
 317                         intval($zcid),
 318                         intval($uid)
 319                 );
 320
 321                 if (DBM::is_result($r)) {
 322                         return $r[0]['total'];
 323                 }
 324
 325                 return 0;
 326         }
 327
 328         /**
 329          * @param object  $uid     user
 330          * @param object  $cid     cid
 331          * @param integer $start   optional, default 0
 332          * @param integer $limit   optional, default 9999
 333          * @param boolean $shuffle optional, default false
 334          * @return object
 335          */
 336         public static function commonFriends($uid, $cid, $start = 0, $limit = 9999, $shuffle = false)
 337         {
 338                 if ($shuffle) {
 339                         $sql_extra = " order by rand() ";
 340                 } else {
 341                         $sql_extra = " order by `gcontact`.`name` asc ";
 342                 }
 343
 344                 $r = q(
 345                         "SELECT `gcontact`.*, `contact`.`id` AS `cid`
 346                         FROM `glink`
 347                         INNER JOIN `gcontact` ON `glink`.`gcid` = `gcontact`.`id`
 348                         INNER JOIN `contact` ON `gcontact`.`nurl` = `contact`.`nurl`
 349                         WHERE `glink`.`cid` = %d and `glink`.`uid` = %d
 350                                 AND `contact`.`uid` = %d AND `contact`.`self` = 0 AND `contact`.`blocked` = 0
 351                                 AND `contact`.`hidden` = 0 AND `contact`.`id` != %d
 352                                 AND ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
 353                                 $sql_extra LIMIT %d, %d",
 354                         intval($cid),
 355                         intval($uid),
 356                         intval($uid),
 357                         intval($cid),
 358                         intval($start),
 359                         intval($limit)
 360                 );
 361
 362                 /// @TODO Check all calling-findings of this function if they properly use DBM::is_result()
 363                 return $r;
 364         }
 365
 366         /**
 367          * @param object  $uid     user
 368          * @param object  $zcid    zcid
 369          * @param integer $start   optional, default 0
 370          * @param integer $limit   optional, default 9999
 371          * @param boolean $shuffle optional, default false
 372          * @return object
 373          */
 374         public static function commonFriendsZcid($uid, $zcid, $start = 0, $limit = 9999, $shuffle = false)
 375         {
 376                 if ($shuffle) {
 377                         $sql_extra = " order by rand() ";
 378                 } else {
 379                         $sql_extra = " order by `gcontact`.`name` asc ";
 380                 }
 381
 382                 $r = q(
 383                         "SELECT `gcontact`.*
 384                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 385                         where `glink`.`zcid` = %d
 386                         and `gcontact`.`nurl` in (select nurl from contact where uid = %d and self = 0 and blocked = 0 and hidden = 0 )
 387                         $sql_extra limit %d, %d",
 388                         intval($zcid),
 389                         intval($uid),
 390                         intval($start),
 391                         intval($limit)
 392                 );
 393
 394                 /// @TODO Check all calling-findings of this function if they properly use DBM::is_result()
 395                 return $r;
 396         }
 397
 398         /**
 399          * @param object $uid user
 400          * @param object $cid cid
 401          * @return integer
 402          */
 403         public static function countAllFriends($uid, $cid)
 404         {
 405                 $r = q(
 406                         "SELECT count(*) as `total`
 407                         FROM `glink` INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 408                         where `glink`.`cid` = %d and `glink`.`uid` = %d AND
 409                         ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))",
 410                         intval($cid),
 411                         intval($uid)
 412                 );
 413
 414                 if (DBM::is_result($r)) {
 415                         return $r[0]['total'];
 416                 }
 417
 418                 return 0;
 419         }
 420
 421         /**
 422          * @param object  $uid   user
 423          * @param object  $cid   cid
 424          * @param integer $start optional, default 0
 425          * @param integer $limit optional, default 80
 426          * @return object
 427          */
 428         public static function allFriends($uid, $cid, $start = 0, $limit = 80)
 429         {
 430                 $r = q(
 431                         "SELECT `gcontact`.*, `contact`.`id` AS `cid`
 432                         FROM `glink`
 433                         INNER JOIN `gcontact` on `glink`.`gcid` = `gcontact`.`id`
 434                         LEFT JOIN `contact` ON `contact`.`nurl` = `gcontact`.`nurl` AND `contact`.`uid` = %d
 435                         WHERE `glink`.`cid` = %d AND `glink`.`uid` = %d AND
 436                         ((`gcontact`.`last_contact` >= `gcontact`.`last_failure`) OR (`gcontact`.`updated` >= `gcontact`.`last_failure`))
 437                         ORDER BY `gcontact`.`name` ASC LIMIT %d, %d ",
 438                         intval($uid),
 439                         intval($cid),
 440                         intval($uid),
 441                         intval($start),
 442                         intval($limit)
 443                 );
 444
 445                 /// @TODO Check all calling-findings of this function if they properly use DBM::is_result()
 446                 return $r;
 447         }
 448
 449         /**
 450          * @param object  $uid   user
 451          * @param integer $start optional, default 0
 452          * @param integer $limit optional, default 80
 453          * @return array
 454          */
 455         public static function suggestionQuery($uid, $start = 0, $limit = 80)
 456         {
 457                 if (!$uid) {
 458                         return array();
 459                 }
 460
 461                 /*
 462                 * Uncommented because the result of the queries are to big to store it in the cache.
 463                 * We need to decide if we want to change the db column type or if we want to delete it.
 464                 */
 465                 //$list = Cache::get("suggestion_query:".$uid.":".$start.":".$limit);
 466                 //if (!is_null($list)) {
 467                 //      return $list;
 468                 //}
 469
 470                 $network = array(NETWORK_DFRN);
 471
 472                 if (Config::get('system', 'diaspora_enabled')) {
 473                         $network[] = NETWORK_DIASPORA;
 474                 }
 475
 476                 if (!Config::get('system', 'ostatus_disabled')) {
 477                         $network[] = NETWORK_OSTATUS;
 478                 }
 479
 480                 $sql_network = implode("', '", $network);
 481                 $sql_network = "'".$sql_network."'";
 482
 483                 /// @todo This query is really slow
 484                 // By now we cache the data for five minutes
 485                 $r = q(
 486                         "SELECT count(glink.gcid) as `total`, gcontact.* from gcontact
 487                         INNER JOIN `glink` ON `glink`.`gcid` = `gcontact`.`id`
 488                         where uid = %d and not gcontact.nurl in ( select nurl from contact where uid = %d )
 489                         AND NOT `gcontact`.`name` IN (SELECT `name` FROM `contact` WHERE `uid` = %d)
 490                         AND NOT `gcontact`.`id` IN (SELECT `gcid` FROM `gcign` WHERE `uid` = %d)
 491                         AND `gcontact`.`updated` >= '%s'
 492                         AND `gcontact`.`last_contact` >= `gcontact`.`last_failure`
 493                         AND `gcontact`.`network` IN (%s)
 494                         GROUP BY `glink`.`gcid` ORDER BY `gcontact`.`updated` DESC,`total` DESC LIMIT %d, %d",
 495                         intval($uid),
 496                         intval($uid),
 497                         intval($uid),
 498                         intval($uid),
 499                         dbesc(NULL_DATE),
 500                         $sql_network,
 501                         intval($start),
 502                         intval($limit)
 503                 );
 504
 505                 if (DBM::is_result($r) && count($r) >= ($limit -1)) {
 506                         /*
 507                         * Uncommented because the result of the queries are to big to store it in the cache.
 508                         * We need to decide if we want to change the db column type or if we want to delete it.
 509                         */
 510                         //Cache::set("suggestion_query:".$uid.":".$start.":".$limit, $r, CACHE_FIVE_MINUTES);
 511
 512                         return $r;
 513                 }
 514
 515                 $r2 = q(
 516                         "SELECT gcontact.* FROM gcontact
 517                         INNER JOIN `glink` ON `glink`.`gcid` = `gcontact`.`id`
 518                         WHERE `glink`.`uid` = 0 AND `glink`.`cid` = 0 AND `glink`.`zcid` = 0 AND NOT `gcontact`.`nurl` IN (SELECT `nurl` FROM `contact` WHERE `uid` = %d)
 519                         AND NOT `gcontact`.`name` IN (SELECT `name` FROM `contact` WHERE `uid` = %d)
 520                         AND NOT `gcontact`.`id` IN (SELECT `gcid` FROM `gcign` WHERE `uid` = %d)
 521                         AND `gcontact`.`updated` >= '%s'
 522                         AND `gcontact`.`last_contact` >= `gcontact`.`last_failure`
 523                         AND `gcontact`.`network` IN (%s)
 524                         ORDER BY rand() LIMIT %d, %d",
 525                         intval($uid),
 526                         intval($uid),
 527                         intval($uid),
 528                         dbesc(NULL_DATE),
 529                         $sql_network,
 530                         intval($start),
 531                         intval($limit)
 532                 );
 533
 534                 $list = array();
 535                 foreach ($r2 as $suggestion) {
 536                         $list[$suggestion["nurl"]] = $suggestion;
 537                 }
 538
 539                 foreach ($r as $suggestion) {
 540                         $list[$suggestion["nurl"]] = $suggestion;
 541                 }
 542
 543                 while (sizeof($list) > ($limit)) {
 544                         array_pop($list);
 545                 }
 546
 547                 /*
 548                 * Uncommented because the result of the queries are to big to store it in the cache.
 549                 * We need to decide if we want to change the db column type or if we want to delete it.
 550                 */
 551                 //Cache::set("suggestion_query:".$uid.":".$start.":".$limit, $list, CACHE_FIVE_MINUTES);
 552                 return $list;
 553         }
 554
 555         /**
 556          * @return void
 557          */
 558         public static function updateSuggestions()
 559         {
 560                 $a = get_app();
 561
 562                 $done = array();
 563
 564                 /// @TODO Check if it is really neccessary to poll the own server
 565                 PortableContact::loadWorker(0, 0, 0, System::baseUrl() . '/poco');
 566
 567                 $done[] = System::baseUrl() . '/poco';
 568
 569                 if (strlen(Config::get('system', 'directory'))) {
 570                         $x = fetch_url(get_server()."/pubsites");
 571                         if ($x) {
 572                                 $j = json_decode($x);
 573                                 if ($j->entries) {
 574                                         foreach ($j->entries as $entry) {
 575                                                 PortableContact::checkServer($entry->url);
 576
 577                                                 $url = $entry->url . '/poco';
 578                                                 if (! in_array($url, $done)) {
 579                                                         PortableContact::loadWorker(0, 0, 0, $entry->url . '/poco');
 580                                                 }
 581                                         }
 582                                 }
 583                         }
 584                 }
 585
 586                 // Query your contacts from Friendica and Redmatrix/Hubzilla for their contacts
 587                 $r = q(
 588                         "SELECT DISTINCT(`poco`) AS `poco` FROM `contact` WHERE `network` IN ('%s', '%s')",
 589                         dbesc(NETWORK_DFRN),
 590                         dbesc(NETWORK_DIASPORA)
 591                 );
 592
 593                 if (DBM::is_result($r)) {
 594                         foreach ($r as $rr) {
 595                                 $base = substr($rr['poco'], 0, strrpos($rr['poco'], '/'));
 596                                 if (! in_array($base, $done)) {
 597                                         PortableContact::loadWorker(0, 0, 0, $base);
 598                                 }
 599                         }
 600                 }
 601         }
 602
 603         /**
 604          * @brief Removes unwanted parts from a contact url
 605          *
 606          * @param string $url Contact url
 607          *
 608          * @return string Contact url with the wanted parts
 609          */
 610         public static function cleanContactUrl($url)
 611         {
 612                 $parts = parse_url($url);
 613
 614                 if (!isset($parts["scheme"]) || !isset($parts["host"])) {
 615                         return $url;
 616                 }
 617
 618                 $new_url = $parts["scheme"]."://".$parts["host"];
 619
 620                 if (isset($parts["port"])) {
 621                         $new_url .= ":".$parts["port"];
 622                 }
 623
 624                 if (isset($parts["path"])) {
 625                         $new_url .= $parts["path"];
 626                 }
 627
 628                 if ($new_url != $url) {
 629                         logger("Cleaned contact url ".$url." to ".$new_url." - Called by: ".System::callstack(), LOGGER_DEBUG);
 630                 }
 631
 632                 return $new_url;
 633         }
 634
 635         /**
 636          * @brief Replace alternate OStatus user format with the primary one
 637          *
 638          * @param arr $contact contact array (called by reference)
 639          * @return void
 640          */
 641         public static function fixAlternateContactAddress(&$contact)
 642         {
 643                 if (($contact["network"] == NETWORK_OSTATUS) && PortableContact::alternateOStatusUrl($contact["url"])) {
 644                         $data = Probe::uri($contact["url"]);
 645                         if ($contact["network"] == NETWORK_OSTATUS) {
 646                                 logger("Fix primary url from ".$contact["url"]." to ".$data["url"]." - Called by: ".System::callstack(), LOGGER_DEBUG);
 647                                 $contact["url"] = $data["url"];
 648                                 $contact["addr"] = $data["addr"];
 649                                 $contact["alias"] = $data["alias"];
 650                                 $contact["server_url"] = $data["baseurl"];
 651                         }
 652                 }
 653         }
 654
 655         /**
 656          * @brief Fetch the gcontact id, add an entry if not existed
 657          *
 658          * @param arr $contact contact array
 659          *
 660          * @return bool|int Returns false if not found, integer if contact was found
 661          */
 662         public static function getId($contact)
 663         {
 664                 $gcontact_id = 0;
 665                 $doprobing = false;
 666
 667                 if (in_array($contact["network"], array(NETWORK_PHANTOM))) {
 668                         logger("Invalid network for contact url ".$contact["url"]." - Called by: ".System::callstack(), LOGGER_DEBUG);
 669                         return false;
 670                 }
 671
 672                 if ($contact["network"] == NETWORK_STATUSNET) {
 673                         $contact["network"] = NETWORK_OSTATUS;
 674                 }
 675
 676                 // All new contacts are hidden by default
 677                 if (!isset($contact["hide"])) {
 678                         $contact["hide"] = true;
 679                 }
 680
 681                 // Replace alternate OStatus user format with the primary one
 682                 self::fixAlternateContactAddress($contact);
 683
 684                 // Remove unwanted parts from the contact url (e.g. "?zrl=...")
 685                 if (in_array($contact["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS))) {
 686                         $contact["url"] = self::cleanContactUrl($contact["url"]);
 687                 }
 688
 689                 dba::lock('gcontact');
 690                 $r = q(
 691                         "SELECT `id`, `last_contact`, `last_failure`, `network` FROM `gcontact` WHERE `nurl` = '%s' LIMIT 1",
 692                         dbesc(normalise_link($contact["url"]))
 693                 );
 694
 695                 if (DBM::is_result($r)) {
 696                         $gcontact_id = $r[0]["id"];
 697
 698                         // Update every 90 days
 699                         if (in_array($r[0]["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""))) {
 700                                 $last_failure_str = $r[0]["last_failure"];
 701                                 $last_failure = strtotime($r[0]["last_failure"]);
 702                                 $last_contact_str = $r[0]["last_contact"];
 703                                 $last_contact = strtotime($r[0]["last_contact"]);
 704                                 $doprobing = (((time() - $last_contact) > (90 * 86400)) && ((time() - $last_failure) > (90 * 86400)));
 705                         }
 706                 } else {
 707                         q(
 708                                 "INSERT INTO `gcontact` (`name`, `nick`, `addr` , `network`, `url`, `nurl`, `photo`, `created`, `updated`, `location`, `about`, `hide`, `generation`)
 709                                 VALUES ('%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, %d)",
 710                                 dbesc($contact["name"]),
 711                                 dbesc($contact["nick"]),
 712                                 dbesc($contact["addr"]),
 713                                 dbesc($contact["network"]),
 714                                 dbesc($contact["url"]),
 715                                 dbesc(normalise_link($contact["url"])),
 716                                 dbesc($contact["photo"]),
 717                                 dbesc(datetime_convert()),
 718                                 dbesc(datetime_convert()),
 719                                 dbesc($contact["location"]),
 720                                 dbesc($contact["about"]),
 721                                 intval($contact["hide"]),
 722                                 intval($contact["generation"])
 723                         );
 724
 725                         $r = q(
 726                                 "SELECT `id`, `network` FROM `gcontact` WHERE `nurl` = '%s' ORDER BY `id` LIMIT 2",
 727                                 dbesc(normalise_link($contact["url"]))
 728                         );
 729
 730                         if (DBM::is_result($r)) {
 731                                 $gcontact_id = $r[0]["id"];
 732
 733                                 $doprobing = in_array($r[0]["network"], array(NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""));
 734                         }
 735                 }
 736                 dba::unlock();
 737
 738                 if ($doprobing) {
 739                         logger("Last Contact: ". $last_contact_str." - Last Failure: ".$last_failure_str." - Checking: ".$contact["url"], LOGGER_DEBUG);
 740                         Worker::add(PRIORITY_LOW, 'GProbe', $contact["url"]);
 741                 }
 742
 743                 return $gcontact_id;
 744         }
 745
 746         /**
 747          * @brief Updates the gcontact table from a given array
 748          *
 749          * @param arr $contact contact array
 750          *
 751          * @return bool|int Returns false if not found, integer if contact was found
 752          */
 753         public static function update($contact)
 754         {
 755                 // Check for invalid "contact-type" value
 756                 if (isset($contact['contact-type']) && (intval($contact['contact-type']) < 0)) {
 757                         $contact['contact-type'] = 0;
 758                 }
 759
 760                 /// @todo update contact table as well
 761
 762                 $gcontact_id = self::getId($contact);
 763
 764                 if (!$gcontact_id) {
 765                         return false;
 766                 }
 767
 768                 $r = q(
 769                         "SELECT `name`, `nick`, `photo`, `location`, `about`, `addr`, `generation`, `birthday`, `gender`, `keywords`,
 770                                 `contact-type`, `hide`, `nsfw`, `network`, `alias`, `notify`, `server_url`, `connect`, `updated`, `url`
 771                         FROM `gcontact` WHERE `id` = %d LIMIT 1",
 772                         intval($gcontact_id)
 773                 );
 774
 775                 // Get all field names
 776                 $fields = array();
 777                 foreach ($r[0] as $field => $data) {
 778                         $fields[$field] = $data;
 779                 }
 780
 781                 unset($fields["url"]);
 782                 unset($fields["updated"]);
 783                 unset($fields["hide"]);
 784
 785                 // Bugfix: We had an error in the storing of keywords which lead to the "0"
 786                 // This value is still transmitted via poco.
 787                 if ($contact["keywords"] == "0") {
 788                         unset($contact["keywords"]);
 789                 }
 790
 791                 if ($r[0]["keywords"] == "0") {
 792                         $r[0]["keywords"] = "";
 793                 }
 794
 795                 // assign all unassigned fields from the database entry
 796                 foreach ($fields as $field => $data) {
 797                         if (!isset($contact[$field]) || ($contact[$field] == "")) {
 798                                 $contact[$field] = $r[0][$field];
 799                         }
 800                 }
 801
 802                 if (!isset($contact["hide"])) {
 803                         $contact["hide"] = $r[0]["hide"];
 804                 }
 805
 806                 $fields["hide"] = $r[0]["hide"];
 807
 808                 if ($contact["network"] == NETWORK_STATUSNET) {
 809                         $contact["network"] = NETWORK_OSTATUS;
 810                 }
 811
 812                 // Replace alternate OStatus user format with the primary one
 813                 self::fixAlternateContactAddress($contact);
 814
 815                 if (!isset($contact["updated"])) {
 816                         $contact["updated"] = DBM::date();
 817                 }
 818
 819                 if ($contact["network"] == NETWORK_TWITTER) {
 820                         $contact["server_url"] = 'http://twitter.com';
 821                 }
 822
 823                 if ($contact["server_url"] == "") {
 824                         $data = Probe::uri($contact["url"]);
 825                         if ($data["network"] != NETWORK_PHANTOM) {
 826                                 $contact["server_url"] = $data['baseurl'];
 827                         }
 828                 } else {
 829                         $contact["server_url"] = normalise_link($contact["server_url"]);
 830                 }
 831
 832                 if (($contact["addr"] == "") && ($contact["server_url"] != "") && ($contact["nick"] != "")) {
 833                         $hostname = str_replace("http://", "", $contact["server_url"]);
 834                         $contact["addr"] = $contact["nick"]."@".$hostname;
 835                 }
 836
 837                 // Check if any field changed
 838                 $update = false;
 839                 unset($fields["generation"]);
 840
 841                 if ((($contact["generation"] > 0) && ($contact["generation"] <= $r[0]["generation"])) || ($r[0]["generation"] == 0)) {
 842                         foreach ($fields as $field => $data) {
 843                                 if ($contact[$field] != $r[0][$field]) {
 844                                         logger("Difference for contact ".$contact["url"]." in field '".$field."'. New value: '".$contact[$field]."', old value '".$r[0][$field]."'", LOGGER_DEBUG);
 845                                         $update = true;
 846                                 }
 847                         }
 848
 849                         if ($contact["generation"] < $r[0]["generation"]) {
 850                                 logger("Difference for contact ".$contact["url"]." in field 'generation'. new value: '".$contact["generation"]."', old value '".$r[0]["generation"]."'", LOGGER_DEBUG);
 851                                 $update = true;
 852                         }
 853                 }
 854
 855                 if ($update) {
 856                         logger("Update gcontact for ".$contact["url"], LOGGER_DEBUG);
 857                         $condition = array('`nurl` = ? AND (`generation` = 0 OR `generation` >= ?)',
 858                                         normalise_link($contact["url"]), $contact["generation"]);
 859                         $contact["updated"] = DBM::date($contact["updated"]);
 860
 861                         $updated = array('photo' => $contact['photo'], 'name' => $contact['name'],
 862                                         'nick' => $contact['nick'], 'addr' => $contact['addr'],
 863                                         'network' => $contact['network'], 'birthday' => $contact['birthday'],
 864                                         'gender' => $contact['gender'], 'keywords' => $contact['keywords'],
 865                                         'hide' => $contact['hide'], 'nsfw' => $contact['nsfw'],
 866                                         'contact-type' => $contact['contact-type'], 'alias' => $contact['alias'],
 867                                         'notify' => $contact['notify'], 'url' => $contact['url'],
 868                                         'location' => $contact['location'], 'about' => $contact['about'],
 869                                         'generation' => $contact['generation'], 'updated' => $contact['updated'],
 870                                         'server_url' => $contact['server_url'], 'connect' => $contact['connect']);
 871
 872                         dba::update('gcontact', $updated, $condition, $fields);
 873
 874                         // Now update the contact entry with the user id "0" as well.
 875                         // This is used for the shadow copies of public items.
 876                         $r = q(
 877                                 "SELECT `id` FROM `contact` WHERE `nurl` = '%s' AND `uid` = 0 ORDER BY `id` LIMIT 1",
 878                                 dbesc(normalise_link($contact["url"]))
 879                         );
 880
 881                         if (DBM::is_result($r)) {
 882                                 logger("Update public contact ".$r[0]["id"], LOGGER_DEBUG);
 883
 884                                 Contact::updateAvatar($contact["photo"], 0, $r[0]["id"]);
 885
 886                                 $fields = array('name', 'nick', 'addr',
 887                                                 'network', 'bd', 'gender',
 888                                                 'keywords', 'alias', 'contact-type',
 889                                                 'url', 'location', 'about');
 890                                 $old_contact = dba::select('contact', $fields, array('id' => $r[0]["id"]), array('limit' => 1));
 891
 892                                 // Update it with the current values
 893                                 $fields = array('name' => $contact['name'], 'nick' => $contact['nick'],
 894                                                 'addr' => $contact['addr'], 'network' => $contact['network'],
 895                                                 'bd' => $contact['birthday'], 'gender' => $contact['gender'],
 896                                                 'keywords' => $contact['keywords'], 'alias' => $contact['alias'],
 897                                                 'contact-type' => $contact['contact-type'], 'url' => $contact['url'],
 898                                                 'location' => $contact['location'], 'about' => $contact['about']);
 899
 900                                 dba::update('contact', $fields, array('id' => $r[0]["id"]), $old_contact);
 901                         }
 902                 }
 903
 904                 return $gcontact_id;
 905         }
 906
 907         /**
 908          * @brief Updates the gcontact entry from probe
 909          *
 910          * @param str $url profile link
 911          * @return void
 912          */
 913         public static function updateFromProbe($url)
 914         {
 915                 $data = Probe::uri($url);
 916
 917                 if (in_array($data["network"], array(NETWORK_PHANTOM))) {
 918                         logger("Invalid network for contact url ".$data["url"]." - Called by: ".System::callstack(), LOGGER_DEBUG);
 919                         return;
 920                 }
 921
 922                 $data["server_url"] = $data["baseurl"];
 923
 924                 self::update($data);
 925         }
 926
 927         /**
 928          * @brief Update the gcontact entry for a given user id
 929          *
 930          * @param int $uid User ID
 931          * @return void
 932          */
 933         public static function updateForUser($uid)
 934         {
 935                 $r = q(
 936                         "SELECT `profile`.`locality`, `profile`.`region`, `profile`.`country-name`,
 937                                 `profile`.`name`, `profile`.`about`, `profile`.`gender`,
 938                                 `profile`.`pub_keywords`, `profile`.`dob`, `profile`.`photo`,
 939                                 `profile`.`net-publish`, `user`.`nickname`, `user`.`hidewall`,
 940                                 `contact`.`notify`, `contact`.`url`, `contact`.`addr`
 941                         FROM `profile`
 942                                 INNER JOIN `user` ON `user`.`uid` = `profile`.`uid`
 943                                 INNER JOIN `contact` ON `contact`.`uid` = `profile`.`uid`
 944                         WHERE `profile`.`uid` = %d AND `profile`.`is-default` AND `contact`.`self`",
 945                         intval($uid)
 946                 );
 947
 948                 $location = Profile::formatLocation(
 949                         array("locality" => $r[0]["locality"], "region" => $r[0]["region"], "country-name" => $r[0]["country-name"])
 950                 );
 951
 952                 // The "addr" field was added in 3.4.3 so it can be empty for older users
 953                 if ($r[0]["addr"] != "") {
 954                         $addr = $r[0]["nickname"].'@'.str_replace(array("http://", "https://"), "", System::baseUrl());
 955                 } else {
 956                         $addr = $r[0]["addr"];
 957                 }
 958
 959                 $gcontact = array("name" => $r[0]["name"], "location" => $location, "about" => $r[0]["about"],
 960                                 "gender" => $r[0]["gender"], "keywords" => $r[0]["pub_keywords"],
 961                                 "birthday" => $r[0]["dob"], "photo" => $r[0]["photo"],
 962                                 "notify" => $r[0]["notify"], "url" => $r[0]["url"],
 963                                 "hide" => ($r[0]["hidewall"] || !$r[0]["net-publish"]),
 964                                 "nick" => $r[0]["nickname"], "addr" => $addr,
 965                                 "connect" => $addr, "server_url" => System::baseUrl(),
 966                                 "generation" => 1, "network" => NETWORK_DFRN);
 967
 968                 self::update($gcontact);
 969         }
 970
 971         /**
 972          * @brief Fetches users of given GNU Social server
 973          *
 974          * If the "Statistics" plugin is enabled (See http://gstools.org/ for details) we query user data with this.
 975          *
 976          * @param str $server Server address
 977          * @return void
 978          */
 979         public static function fetchGsUsers($server)
 980         {
 981                 logger("Fetching users from GNU Social server ".$server, LOGGER_DEBUG);
 982
 983                 $url = $server."/main/statistics";
 984
 985                 $result = z_fetch_url($url);
 986                 if (!$result["success"]) {
 987                         return false;
 988                 }
 989
 990                 $statistics = json_decode($result["body"]);
 991
 992                 if (is_object($statistics->config)) {
 993                         if ($statistics->config->instance_with_ssl) {
 994                                 $server = "https://";
 995                         } else {
 996                                 $server = "http://";
 997                         }
 998
 999                         $server .= $statistics->config->instance_address;
1000
1001                         $hostname = $statistics->config->instance_address;
1002                 } else {
1003                         /// @TODO is_object() above means here no object, still $statistics is being used as object
1004                         if ($statistics->instance_with_ssl) {
1005                                 $server = "https://";
1006                         } else {
1007                                 $server = "http://";
1008                         }
1009
1010                         $server .= $statistics->instance_address;
1011
1012                         $hostname = $statistics->instance_address;
1013                 }
1014
1015                 if (is_object($statistics->users)) {
1016                         foreach ($statistics->users as $nick => $user) {
1017                                 $profile_url = $server."/".$user->nickname;
1018
1019                                 $contact = array("url" => $profile_url,
1020                                                 "name" => $user->fullname,
1021                                                 "addr" => $user->nickname."@".$hostname,
1022                                                 "nick" => $user->nickname,
1023                                                 "about" => $user->bio,
1024                                                 "network" => NETWORK_OSTATUS,
1025                                                 "photo" => System::baseUrl()."/images/person-175.jpg");
1026                                 self::getId($contact);
1027                         }
1028                 }
1029         }
1030
1031         /**
1032          * @brief Asking GNU Social server on a regular base for their user data
1033          * @return void
1034          */
1035         public static function discoverGsUsers()
1036         {
1037                 $requery_days = intval(Config::get("system", "poco_requery_days"));
1038
1039                 $last_update = date("c", time() - (60 * 60 * 24 * $requery_days));
1040
1041                 $r = q(
1042                         "SELECT `nurl`, `url` FROM `gserver` WHERE `last_contact` >= `last_failure` AND `network` = '%s' AND `last_poco_query` < '%s' ORDER BY RAND() LIMIT 5",
1043                         dbesc(NETWORK_OSTATUS),
1044                         dbesc($last_update)
1045                 );
1046
1047                 if (!DBM::is_result($r)) {
1048                         return;
1049                 }
1050
1051                 foreach ($r as $server) {
1052                         self::fetchGsUsers($server["url"]);
1053                         q("UPDATE `gserver` SET `last_poco_query` = '%s' WHERE `nurl` = '%s'", dbesc(datetime_convert()), dbesc($server["nurl"]));
1054                 }
1055         }
1056
1057         /**
1058          * @return string
1059          */
1060         public static function getRandomUrl()
1061         {
1062                 $r = q(
1063                         "SELECT `url` FROM `gcontact` WHERE `network` = '%s'
1064                                         AND `last_contact` >= `last_failure`
1065                                         AND `updated` > UTC_TIMESTAMP - INTERVAL 1 MONTH
1066                                 ORDER BY rand() LIMIT 1",
1067                         dbesc(NETWORK_DFRN)
1068                 );
1069
1070                 if (DBM::is_result($r)) {
1071                         return dirname($r[0]['url']);
1072                 }
1073
1074                 return '';
1075         }
1076 }