src/Model/Contact.php

   1 <?php
   2 /**
   3  * @file src/Model/Contact.php
   4  */
   5 namespace Friendica\Model;
   6
   7 use Friendica\BaseObject;
   8 use Friendica\Core\Addon;
   9 use Friendica\Core\Config;
  10 use Friendica\Core\L10n;
  11 use Friendica\Core\PConfig;
  12 use Friendica\Core\System;
  13 use Friendica\Core\Worker;
  14 use Friendica\Database\DBM;
  15 use Friendica\Model\Photo;
  16 use Friendica\Model\Profile;
  17 use Friendica\Network\Probe;
  18 use Friendica\Protocol\DFRN;
  19 use Friendica\Protocol\Diaspora;
  20 use Friendica\Protocol\OStatus;
  21 use Friendica\Protocol\PortableContact;
  22 use Friendica\Protocol\Salmon;
  23 use Friendica\Util\DateTimeFormat;
  24 use Friendica\Util\Network;
  25 use dba;
  26
  27 require_once 'boot.php';
  28 require_once 'include/dba.php';
  29 require_once 'include/text.php';
  30
  31 /**
  32  * @brief functions for interacting with a contact
  33  */
  34 class Contact extends BaseObject
  35 {
  36         /**
  37          * @brief Returns a list of contacts belonging in a group
  38          *
  39          * @param int $gid
  40          * @return array
  41          */
  42         public static function getByGroupId($gid)
  43         {
  44                 $return = [];
  45                 if (intval($gid)) {
  46                         $stmt = dba::p('SELECT `group_member`.`contact-id`, `contact`.*
  47                                 FROM `contact`
  48                                 INNER JOIN `group_member`
  49                                         ON `contact`.`id` = `group_member`.`contact-id`
  50                                 WHERE `gid` = ?
  51                                 AND `contact`.`uid` = ?
  52                                 AND NOT `contact`.`self`
  53                                 AND NOT `contact`.`blocked`
  54                                 AND NOT `contact`.`pending`
  55                                 ORDER BY `contact`.`name` ASC',
  56                                 $gid,
  57                                 local_user()
  58                         );
  59                         if (DBM::is_result($stmt)) {
  60                                 $return = dba::inArray($stmt);
  61                         }
  62                 }
  63
  64                 return $return;
  65         }
  66
  67         /**
  68          * @brief Returns the count of OStatus contacts in a group
  69          *
  70          * @param int $gid
  71          * @return int
  72          */
  73         public static function getOStatusCountByGroupId($gid)
  74         {
  75                 $return = 0;
  76                 if (intval($gid)) {
  77                         $contacts = dba::fetch_first('SELECT COUNT(*) AS `count`
  78                                 FROM `contact`
  79                                 INNER JOIN `group_member`
  80                                         ON `contact`.`id` = `group_member`.`contact-id`
  81                                 WHERE `gid` = ?
  82                                 AND `contact`.`uid` = ?
  83                                 AND `contact`.`network` = ?
  84                                 AND `contact`.`notify` != ""',
  85                                 $gid,
  86                                 local_user(),
  87                                 NETWORK_OSTATUS
  88                         );
  89                         $return = $contacts['count'];
  90                 }
  91
  92                 return $return;
  93         }
  94
  95         /**
  96          * Creates the self-contact for the provided user id
  97          *
  98          * @param int $uid
  99          * @return bool Operation success
 100          */
 101         public static function createSelfFromUserId($uid)
 102         {
 103                 // Only create the entry if it doesn't exist yet
 104                 if (dba::exists('contact', ['uid' => $uid, 'self' => true])) {
 105                         return true;
 106                 }
 107
 108                 $user = dba::selectFirst('user', ['uid', 'username', 'nickname'], ['uid' => $uid]);
 109                 if (!DBM::is_result($user)) {
 110                         return false;
 111                 }
 112
 113                 $return = dba::insert('contact', [
 114                         'uid'         => $user['uid'],
 115                         'created'     => DateTimeFormat::utcNow(),
 116                         'self'        => 1,
 117                         'name'        => $user['username'],
 118                         'nick'        => $user['nickname'],
 119                         'photo'       => System::baseUrl() . '/photo/profile/' . $user['uid'] . '.jpg',
 120                         'thumb'       => System::baseUrl() . '/photo/avatar/'  . $user['uid'] . '.jpg',
 121                         'micro'       => System::baseUrl() . '/photo/micro/'   . $user['uid'] . '.jpg',
 122                         'blocked'     => 0,
 123                         'pending'     => 0,
 124                         'url'         => System::baseUrl() . '/profile/' . $user['nickname'],
 125                         'nurl'        => normalise_link(System::baseUrl() . '/profile/' . $user['nickname']),
 126                         'addr'        => $user['nickname'] . '@' . substr(System::baseUrl(), strpos(System::baseUrl(), '://') + 3),
 127                         'request'     => System::baseUrl() . '/dfrn_request/' . $user['nickname'],
 128                         'notify'      => System::baseUrl() . '/dfrn_notify/'  . $user['nickname'],
 129                         'poll'        => System::baseUrl() . '/dfrn_poll/'    . $user['nickname'],
 130                         'confirm'     => System::baseUrl() . '/dfrn_confirm/' . $user['nickname'],
 131                         'poco'        => System::baseUrl() . '/poco/'         . $user['nickname'],
 132                         'name-date'   => DateTimeFormat::utcNow(),
 133                         'uri-date'    => DateTimeFormat::utcNow(),
 134                         'avatar-date' => DateTimeFormat::utcNow(),
 135                         'closeness'   => 0
 136                 ]);
 137
 138                 return $return;
 139         }
 140
 141         /**
 142          * @brief Marks a contact for removal
 143          *
 144          * @param int $id contact id
 145          * @return null
 146          */
 147         public static function remove($id)
 148         {
 149                 // We want just to make sure that we don't delete our "self" contact
 150                 $contact = dba::selectFirst('contact', ['uid'], ['id' => $id, 'self' => false]);
 151                 if (!DBM::is_result($contact) || !intval($contact['uid'])) {
 152                         return;
 153                 }
 154
 155                 $archive = PConfig::get($contact['uid'], 'system', 'archive_removed_contacts');
 156                 if ($archive) {
 157                         dba::update('contact', ['archive' => true, 'network' => 'none', 'writable' => false], ['id' => $id]);
 158                         return;
 159                 }
 160
 161                 dba::delete('contact', ['id' => $id]);
 162
 163                 // Delete the rest in the background
 164                 Worker::add(PRIORITY_LOW, 'RemoveContact', $id);
 165         }
 166
 167         /**
 168          * @brief Sends an unfriend message. Does not remove the contact
 169          *
 170          * @param array $user    User unfriending
 171          * @param array $contact Contact unfriended
 172          * @return void
 173          */
 174         public static function terminateFriendship(array $user, array $contact)
 175         {
 176                 if ($contact['network'] === NETWORK_OSTATUS) {
 177                         // create an unfollow slap
 178                         $item = [];
 179                         $item['verb'] = NAMESPACE_OSTATUS . "/unfollow";
 180                         $item['follow'] = $contact["url"];
 181                         $slap = OStatus::salmon($item, $user);
 182
 183                         if ((x($contact, 'notify')) && (strlen($contact['notify']))) {
 184                                 Salmon::slapper($user, $contact['notify'], $slap);
 185                         }
 186                 } elseif ($contact['network'] === NETWORK_DIASPORA) {
 187                         Diaspora::sendUnshare($user, $contact);
 188                 } elseif ($contact['network'] === NETWORK_DFRN) {
 189                         DFRN::deliver($user, $contact, 'placeholder', 1);
 190                 }
 191         }
 192
 193         /**
 194          * @brief Marks a contact for archival after a communication issue delay
 195          *
 196          * Contact has refused to recognise us as a friend. We will start a countdown.
 197          * If they still don't recognise us in 32 days, the relationship is over,
 198          * and we won't waste any more time trying to communicate with them.
 199          * This provides for the possibility that their database is temporarily messed
 200          * up or some other transient event and that there's a possibility we could recover from it.
 201          *
 202          * @param array $contact contact to mark for archival
 203          * @return null
 204          */
 205         public static function markForArchival(array $contact)
 206         {
 207                 // Contact already archived or "self" contact? => nothing to do
 208                 if ($contact['archive'] || $contact['self']) {
 209                         return;
 210                 }
 211
 212                 if ($contact['term-date'] <= NULL_DATE) {
 213                         dba::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 214
 215                         if ($contact['url'] != '') {
 216                                 dba::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['`nurl` = ? AND `term-date` <= ? AND NOT `self`', normalise_link($contact['url']), NULL_DATE]);
 217                         }
 218                 } else {
 219                         /* @todo
 220                          * We really should send a notification to the owner after 2-3 weeks
 221                          * so they won't be surprised when the contact vanishes and can take
 222                          * remedial action if this was a serious mistake or glitch
 223                          */
 224
 225                         /// @todo Check for contact vitality via probing
 226                         $expiry = $contact['term-date'] . ' + 32 days ';
 227                         if (DateTimeFormat::utcNow() > DateTimeFormat::utc($expiry)) {
 228                                 /* Relationship is really truly dead. archive them rather than
 229                                  * delete, though if the owner tries to unarchive them we'll start
 230                                  * the whole process over again.
 231                                  */
 232                                 dba::update('contact', ['archive' => 1], ['id' => $contact['id']]);
 233
 234                                 if ($contact['url'] != '') {
 235                                         dba::update('contact', ['archive' => 1], ['nurl' => normalise_link($contact['url']), 'self' => false]);
 236                                 }
 237                         }
 238                 }
 239         }
 240
 241         /**
 242          * @brief Cancels the archival countdown
 243          *
 244          * @see Contact::markForArchival()
 245          *
 246          * @param array $contact contact to be unmarked for archival
 247          * @return null
 248          */
 249         public static function unmarkForArchival(array $contact)
 250         {
 251                 $condition = ['`id` = ? AND (`term-date` > ? OR `archive`)', $contact['id'], NULL_DATE];
 252                 $exists = dba::exists('contact', $condition);
 253
 254                 // We don't need to update, we never marked this contact for archival
 255                 if (!$exists) {
 256                         return;
 257                 }
 258
 259                 // It's a miracle. Our dead contact has inexplicably come back to life.
 260                 $fields = ['term-date' => NULL_DATE, 'archive' => false];
 261                 dba::update('contact', $fields, ['id' => $contact['id']]);
 262
 263                 if ($contact['url'] != '') {
 264                         dba::update('contact', $fields, ['nurl' => normalise_link($contact['url'])]);
 265                 }
 266         }
 267
 268         /**
 269          * @brief Get contact data for a given profile link
 270          *
 271          * The function looks at several places (contact table and gcontact table) for the contact
 272          * It caches its result for the same script execution to prevent duplicate calls
 273          *
 274          * @param string $url     The profile link
 275          * @param int    $uid     User id
 276          * @param array  $default If not data was found take this data as default value
 277          *
 278          * @return array Contact data
 279          */
 280         public static function getDetailsByURL($url, $uid = -1, array $default = [])
 281         {
 282                 static $cache = [];
 283
 284                 if ($url == '') {
 285                         return $default;
 286                 }
 287
 288                 if ($uid == -1) {
 289                         $uid = local_user();
 290                 }
 291
 292                 if (isset($cache[$url][$uid])) {
 293                         return $cache[$url][$uid];
 294                 }
 295
 296                 $ssl_url = str_replace('http://', 'https://', $url);
 297
 298                 // Fetch contact data from the contact table for the given user
 299                 $s = dba::p("SELECT `id`, `id` AS `cid`, 0 AS `gid`, 0 AS `zid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 300                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, `self`
 301                 FROM `contact` WHERE `nurl` = ? AND `uid` = ?", normalise_link($url), $uid);
 302                 $r = dba::inArray($s);
 303
 304                 // Fetch contact data from the contact table for the given user, checking with the alias
 305                 if (!DBM::is_result($r)) {
 306                         $s = dba::p("SELECT `id`, `id` AS `cid`, 0 AS `gid`, 0 AS `zid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 307                                 `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, `self`
 308                         FROM `contact` WHERE `alias` IN (?, ?, ?) AND `uid` = ?", normalise_link($url), $url, $ssl_url, $uid);
 309                         $r = dba::inArray($s);
 310                 }
 311
 312                 // Fetch the data from the contact table with "uid=0" (which is filled automatically)
 313                 if (!DBM::is_result($r)) {
 314                         $s = dba::p("SELECT `id`, 0 AS `cid`, `id` AS `zid`, 0 AS `gid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 315                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, 0 AS `self`
 316                         FROM `contact` WHERE `nurl` = ? AND `uid` = 0", normalise_link($url));
 317                         $r = dba::inArray($s);
 318                 }
 319
 320                 // Fetch the data from the contact table with "uid=0" (which is filled automatically) - checked with the alias
 321                 if (!DBM::is_result($r)) {
 322                         $s = dba::p("SELECT `id`, 0 AS `cid`, `id` AS `zid`, 0 AS `gid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 323                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, 0 AS `self`
 324                         FROM `contact` WHERE `alias` IN (?, ?, ?) AND `uid` = 0", normalise_link($url), $url, $ssl_url);
 325                         $r = dba::inArray($s);
 326                 }
 327
 328                 // Fetch the data from the gcontact table
 329                 if (!DBM::is_result($r)) {
 330                         $s = dba::p("SELECT 0 AS `id`, 0 AS `cid`, `id` AS `gid`, 0 AS `zid`, 0 AS `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, '' AS `xmpp`,
 331                         `keywords`, `gender`, `photo`, `photo` AS `thumb`, `photo` AS `micro`, `community` AS `forum`, 0 AS `prv`, `community`, `contact-type`, `birthday`, 0 AS `self`
 332                         FROM `gcontact` WHERE `nurl` = ?", normalise_link($url));
 333                         $r = dba::inArray($s);
 334                 }
 335
 336                 if (DBM::is_result($r)) {
 337                         // If there is more than one entry we filter out the connector networks
 338                         if (count($r) > 1) {
 339                                 foreach ($r as $id => $result) {
 340                                         if ($result["network"] == NETWORK_STATUSNET) {
 341                                                 unset($r[$id]);
 342                                         }
 343                                 }
 344                         }
 345
 346                         $profile = array_shift($r);
 347
 348                         // "bd" always contains the upcoming birthday of a contact.
 349                         // "birthday" might contain the birthday including the year of birth.
 350                         if ($profile["birthday"] > '0001-01-01') {
 351                                 $bd_timestamp = strtotime($profile["birthday"]);
 352                                 $month = date("m", $bd_timestamp);
 353                                 $day = date("d", $bd_timestamp);
 354
 355                                 $current_timestamp = time();
 356                                 $current_year = date("Y", $current_timestamp);
 357                                 $current_month = date("m", $current_timestamp);
 358                                 $current_day = date("d", $current_timestamp);
 359
 360                                 $profile["bd"] = $current_year . "-" . $month . "-" . $day;
 361                                 $current = $current_year . "-" . $current_month . "-" . $current_day;
 362
 363                                 if ($profile["bd"] < $current) {
 364                                         $profile["bd"] = ( ++$current_year) . "-" . $month . "-" . $day;
 365                                 }
 366                         } else {
 367                                 $profile["bd"] = '0001-01-01';
 368                         }
 369                 } else {
 370                         $profile = $default;
 371                 }
 372
 373                 if (($profile["photo"] == "") && isset($default["photo"])) {
 374                         $profile["photo"] = $default["photo"];
 375                 }
 376
 377                 if (($profile["name"] == "") && isset($default["name"])) {
 378                         $profile["name"] = $default["name"];
 379                 }
 380
 381                 if (($profile["network"] == "") && isset($default["network"])) {
 382                         $profile["network"] = $default["network"];
 383                 }
 384
 385                 if (($profile["thumb"] == "") && isset($profile["photo"])) {
 386                         $profile["thumb"] = $profile["photo"];
 387                 }
 388
 389                 if (($profile["micro"] == "") && isset($profile["thumb"])) {
 390                         $profile["micro"] = $profile["thumb"];
 391                 }
 392
 393                 if ((($profile["addr"] == "") || ($profile["name"] == "")) && ($profile["gid"] != 0)
 394                         && in_array($profile["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS])
 395                 ) {
 396                         Worker::add(PRIORITY_LOW, "UpdateGContact", $profile["gid"]);
 397                 }
 398
 399                 // Show contact details of Diaspora contacts only if connected
 400                 if (($profile["cid"] == 0) && ($profile["network"] == NETWORK_DIASPORA)) {
 401                         $profile["location"] = "";
 402                         $profile["about"] = "";
 403                         $profile["gender"] = "";
 404                         $profile["birthday"] = '0001-01-01';
 405                 }
 406
 407                 $cache[$url][$uid] = $profile;
 408
 409                 return $profile;
 410         }
 411
 412         /**
 413          * @brief Get contact data for a given address
 414          *
 415          * The function looks at several places (contact table and gcontact table) for the contact
 416          *
 417          * @param string $addr The profile link
 418          * @param int    $uid  User id
 419          *
 420          * @return array Contact data
 421          */
 422         public static function getDetailsByAddr($addr, $uid = -1)
 423         {
 424                 static $cache = [];
 425
 426                 if ($addr == '') {
 427                         return [];
 428                 }
 429
 430                 if ($uid == -1) {
 431                         $uid = local_user();
 432                 }
 433
 434                 // Fetch contact data from the contact table for the given user
 435                 $r = q("SELECT `id`, `id` AS `cid`, 0 AS `gid`, 0 AS `zid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 436                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, `self`
 437                         FROM `contact` WHERE `addr` = '%s' AND `uid` = %d",
 438                         dbesc($addr),
 439                         intval($uid)
 440                 );
 441                 // Fetch the data from the contact table with "uid=0" (which is filled automatically)
 442                 if (!DBM::is_result($r)) {
 443                         $r = q("SELECT `id`, 0 AS `cid`, `id` AS `zid`, 0 AS `gid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 444                                 `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, 0 AS `self`
 445                                 FROM `contact` WHERE `addr` = '%s' AND `uid` = 0",
 446                                 dbesc($addr)
 447                         );
 448                 }
 449
 450                 // Fetch the data from the gcontact table
 451                 if (!DBM::is_result($r)) {
 452                         $r = q("SELECT 0 AS `id`, 0 AS `cid`, `id` AS `gid`, 0 AS `zid`, 0 AS `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, '' AS `xmpp`,
 453                                 `keywords`, `gender`, `photo`, `photo` AS `thumb`, `photo` AS `micro`, `community` AS `forum`, 0 AS `prv`, `community`, `contact-type`, `birthday`, 0 AS `self`
 454                                 FROM `gcontact` WHERE `addr` = '%s'",
 455                                 dbesc($addr)
 456                         );
 457                 }
 458
 459                 if (!DBM::is_result($r)) {
 460                         $data = Probe::uri($addr);
 461
 462                         $profile = self::getDetailsByURL($data['url'], $uid);
 463                 } else {
 464                         $profile = $r[0];
 465                 }
 466
 467                 return $profile;
 468         }
 469
 470         /**
 471          * @brief Returns the data array for the photo menu of a given contact
 472          *
 473          * @param array $contact contact
 474          * @param int   $uid     optional, default 0
 475          * @return array
 476          */
 477         public static function photoMenu(array $contact, $uid = 0)
 478         {
 479                 // @todo Unused, to be removed
 480                 $a = get_app();
 481
 482                 $contact_url = '';
 483                 $pm_url = '';
 484                 $status_link = '';
 485                 $photos_link = '';
 486                 $posts_link = '';
 487                 $contact_drop_link = '';
 488                 $poke_link = '';
 489
 490                 if ($uid == 0) {
 491                         $uid = local_user();
 492                 }
 493
 494                 if ($contact['uid'] != $uid) {
 495                         if ($uid == 0) {
 496                                 $profile_link = Profile::zrl($contact['url']);
 497                                 $menu = ['profile' => [L10n::t('View Profile'), $profile_link, true]];
 498
 499                                 return $menu;
 500                         }
 501
 502                         // Look for our own contact if the uid doesn't match and isn't public
 503                         $contact_own = dba::selectFirst('contact', [], ['nurl' => $contact['nurl'], 'network' => $contact['network'], 'uid' => $uid]);
 504                         if (DBM::is_result($contact_own)) {
 505                                 return self::photoMenu($contact_own, $uid);
 506                         } else {
 507                                 $profile_link = Profile::zrl($contact['url']);
 508                                 $connlnk = 'follow/?url=' . $contact['url'];
 509                                 $menu = [
 510                                         'profile' => [L10n::t('View Profile'), $profile_link, true],
 511                                         'follow' => [L10n::t('Connect/Follow'), $connlnk, true]
 512                                 ];
 513
 514                                 return $menu;
 515                         }
 516                 }
 517
 518                 $sparkle = false;
 519                 if ($contact['network'] === NETWORK_DFRN) {
 520                         $sparkle = true;
 521                         $profile_link = System::baseUrl() . '/redir/' . $contact['id'];
 522                 } else {
 523                         $profile_link = $contact['url'];
 524                 }
 525
 526                 if ($profile_link === 'mailbox') {
 527                         $profile_link = '';
 528                 }
 529
 530                 if ($sparkle) {
 531                         $status_link = $profile_link . '?url=status';
 532                         $photos_link = $profile_link . '?url=photos';
 533                         $profile_link = $profile_link . '?url=profile';
 534                 }
 535
 536                 if (in_array($contact['network'], [NETWORK_DFRN, NETWORK_DIASPORA])) {
 537                         $pm_url = System::baseUrl() . '/message/new/' . $contact['id'];
 538                 }
 539
 540                 if ($contact['network'] == NETWORK_DFRN) {
 541                         $poke_link = System::baseUrl() . '/poke/?f=&c=' . $contact['id'];
 542                 }
 543
 544                 $contact_url = System::baseUrl() . '/contacts/' . $contact['id'];
 545
 546                 $posts_link = System::baseUrl() . '/contacts/' . $contact['id'] . '/posts';
 547                 $contact_drop_link = System::baseUrl() . '/contacts/' . $contact['id'] . '/drop?confirm=1';
 548
 549                 /**
 550                  * Menu array:
 551                  * "name" => [ "Label", "link", (bool)Should the link opened in a new tab? ]
 552                  */
 553                 $menu = [
 554                         'status'  => [L10n::t("View Status")  , $status_link      , true],
 555                         'profile' => [L10n::t("View Profile") , $profile_link     , true],
 556                         'photos'  => [L10n::t("View Photos")  , $photos_link      , true],
 557                         'network' => [L10n::t("Network Posts"), $posts_link       , false],
 558                         'edit'    => [L10n::t("View Contact") , $contact_url      , false],
 559                         'drop'    => [L10n::t("Drop Contact") , $contact_drop_link, false],
 560                         'pm'      => [L10n::t("Send PM")      , $pm_url           , false],
 561                         'poke'    => [L10n::t("Poke")         , $poke_link        , false],
 562                 ];
 563
 564                 $args = ['contact' => $contact, 'menu' => &$menu];
 565
 566                 Addon::callHooks('contact_photo_menu', $args);
 567
 568                 $menucondensed = [];
 569
 570                 foreach ($menu as $menuname => $menuitem) {
 571                         if ($menuitem[1] != '') {
 572                                 $menucondensed[$menuname] = $menuitem;
 573                         }
 574                 }
 575
 576                 return $menucondensed;
 577         }
 578
 579         /**
 580          * @brief Returns ungrouped contact count or list for user
 581          *
 582          * Returns either the total number of ungrouped contacts for the given user
 583          * id or a paginated list of ungrouped contacts.
 584          *
 585          * @param int $uid   uid
 586          * @param int $start optional, default 0
 587          * @param int $count optional, default 0
 588          *
 589          * @return array
 590          */
 591         public static function getUngroupedList($uid, $start = 0, $count = 0)
 592         {
 593                 if (!$count) {
 594                         $r = q(
 595                                 "SELECT COUNT(*) AS `total`
 596                                  FROM `contact`
 597                                  WHERE `uid` = %d
 598                                  AND NOT `self`
 599                                  AND NOT `blocked`
 600                                  AND NOT `pending`
 601                                  AND `id` NOT IN (
 602                                         SELECT DISTINCT(`contact-id`)
 603                                         FROM `group_member`
 604                                         WHERE `uid` = %d
 605                                 )",
 606                                 intval($uid),
 607                                 intval($uid)
 608                         );
 609
 610                         return $r;
 611                 }
 612
 613                 $r = q(
 614                         "SELECT *
 615                         FROM `contact`
 616                         WHERE `uid` = %d
 617                         AND NOT `self`
 618                         AND NOT `blocked`
 619                         AND NOT `pending`
 620                         AND `id` NOT IN (
 621                                 SELECT DISTINCT(`contact-id`)
 622                                 FROM `group_member`
 623                                 INNER JOIN `group` ON `group`.`id` = `group_member`.`gid`
 624                                 WHERE `group`.`uid` = %d
 625                         )
 626                         LIMIT %d, %d",
 627                         intval($uid),
 628                         intval($uid),
 629                         intval($start),
 630                         intval($count)
 631                 );
 632
 633                 return $r;
 634         }
 635
 636         /**
 637          * @brief Fetch the contact id for a given URL and user
 638          *
 639          * First lookup in the contact table to find a record matching either `url`, `nurl`,
 640          * `addr` or `alias`.
 641          *
 642          * If there's no record and we aren't looking for a public contact, we quit.
 643          * If there's one, we check that it isn't time to update the picture else we
 644          * directly return the found contact id.
 645          *
 646          * Second, we probe the provided $url whether it's http://server.tld/profile or
 647          * nick@server.tld. We quit if we can't get any info back.
 648          *
 649          * Third, we create the contact record if it doesn't exist
 650          *
 651          * Fourth, we update the existing record with the new data (avatar, alias, nick)
 652          * if there's any updates
 653          *
 654          * @param string  $url       Contact URL
 655          * @param integer $uid       The user id for the contact (0 = public contact)
 656          * @param boolean $no_update Don't update the contact
 657          *
 658          * @return integer Contact ID
 659          */
 660         public static function getIdForURL($url, $uid = 0, $no_update = false)
 661         {
 662                 logger("Get contact data for url " . $url . " and user " . $uid . " - " . System::callstack(), LOGGER_DEBUG);
 663
 664                 $contact_id = 0;
 665
 666                 if ($url == '') {
 667                         return 0;
 668                 }
 669
 670                 /// @todo Verify if we can't use Contact::getDetailsByUrl instead of the following
 671                 // We first try the nurl (http://server.tld/nick), most common case
 672                 $contact = dba::selectFirst('contact', ['id', 'avatar-date'], ['nurl' => normalise_link($url), 'uid' => $uid]);
 673
 674                 // Then the addr (nick@server.tld)
 675                 if (!DBM::is_result($contact)) {
 676                         $contact = dba::selectFirst('contact', ['id', 'avatar-date'], ['addr' => $url, 'uid' => $uid]);
 677                 }
 678
 679                 // Then the alias (which could be anything)
 680                 if (!DBM::is_result($contact)) {
 681                         // The link could be provided as http although we stored it as https
 682                         $ssl_url = str_replace('http://', 'https://', $url);
 683                         $condition = ['`alias` IN (?, ?, ?) AND `uid` = ?', $url, normalise_link($url), $ssl_url, $uid];
 684                         $contact = dba::selectFirst('contact', ['id', 'avatar', 'avatar-date'], $condition);
 685                 }
 686
 687                 if (DBM::is_result($contact)) {
 688                         $contact_id = $contact["id"];
 689
 690                         // Update the contact every 7 days
 691                         $update_contact = ($contact['avatar-date'] < DateTimeFormat::utc('now -7 days'));
 692
 693                         // We force the update if the avatar is empty
 694                         if (!x($contact, 'avatar')) {
 695                                 $update_contact = true;
 696                         }
 697
 698                         if (!$update_contact || $no_update) {
 699                                 return $contact_id;
 700                         }
 701                 } elseif ($uid != 0) {
 702                         // Non-existing user-specific contact, exiting
 703                         return 0;
 704                 }
 705
 706                 $data = Probe::uri($url, "", $uid);
 707
 708                 // Last try in gcontact for unsupported networks
 709                 if (!in_array($data["network"], [NETWORK_DFRN, NETWORK_OSTATUS, NETWORK_DIASPORA, NETWORK_PUMPIO, NETWORK_MAIL])) {
 710                         if ($uid != 0) {
 711                                 return 0;
 712                         }
 713
 714                         // Get data from the gcontact table
 715                         $gcontact = dba::selectFirst('gcontact', ['name', 'nick', 'url', 'photo', 'addr', 'alias', 'network'], ['nurl' => normalise_link($url)]);
 716                         if (!DBM::is_result($gcontact)) {
 717                                 return 0;
 718                         }
 719
 720                         $data = array_merge($data, $gcontact);
 721                 }
 722
 723                 if (!$contact_id && ($data["alias"] != '') && ($data["alias"] != $url)) {
 724                         $contact_id = self::getIdForURL($data["alias"], $uid, true);
 725                 }
 726
 727                 $url = $data["url"];
 728                 if (!$contact_id) {
 729                         dba::insert('contact', [
 730                                 'uid'       => $uid,
 731                                 'created'   => DateTimeFormat::utcNow(),
 732                                 'url'       => $data["url"],
 733                                 'nurl'      => normalise_link($data["url"]),
 734                                 'addr'      => $data["addr"],
 735                                 'alias'     => $data["alias"],
 736                                 'notify'    => $data["notify"],
 737                                 'poll'      => $data["poll"],
 738                                 'name'      => $data["name"],
 739                                 'nick'      => $data["nick"],
 740                                 'photo'     => $data["photo"],
 741                                 'keywords'  => $data["keywords"],
 742                                 'location'  => $data["location"],
 743                                 'about'     => $data["about"],
 744                                 'network'   => $data["network"],
 745                                 'pubkey'    => $data["pubkey"],
 746                                 'rel'       => CONTACT_IS_SHARING,
 747                                 'priority'  => $data["priority"],
 748                                 'batch'     => $data["batch"],
 749                                 'request'   => $data["request"],
 750                                 'confirm'   => $data["confirm"],
 751                                 'poco'      => $data["poco"],
 752                                 'name-date' => DateTimeFormat::utcNow(),
 753                                 'uri-date'  => DateTimeFormat::utcNow(),
 754                                 'avatar-date' => DateTimeFormat::utcNow(),
 755                                 'writable'  => 1,
 756                                 'blocked'   => 0,
 757                                 'readonly'  => 0,
 758                                 'pending'   => 0]
 759                         );
 760
 761                         $s = dba::select('contact', ['id'], ['nurl' => normalise_link($data["url"]), 'uid' => $uid], ['order' => ['id'], 'limit' => 2]);
 762                         $contacts = dba::inArray($s);
 763                         if (!DBM::is_result($contacts)) {
 764                                 return 0;
 765                         }
 766
 767                         $contact_id = $contacts[0]["id"];
 768
 769                         // Update the newly created contact from data in the gcontact table
 770                         $gcontact = dba::selectFirst('gcontact', ['location', 'about', 'keywords', 'gender'], ['nurl' => normalise_link($data["url"])]);
 771                         if (DBM::is_result($gcontact)) {
 772                                 // Only use the information when the probing hadn't fetched these values
 773                                 if ($data['keywords'] != '') {
 774                                         unset($gcontact['keywords']);
 775                                 }
 776                                 if ($data['location'] != '') {
 777                                         unset($gcontact['location']);
 778                                 }
 779                                 if ($data['about'] != '') {
 780                                         unset($gcontact['about']);
 781                                 }
 782                                 dba::update('contact', $gcontact, ['id' => $contact_id]);
 783                         }
 784
 785                         if (count($contacts) > 1 && $uid == 0 && $contact_id != 0 && $data["url"] != "") {
 786                                 dba::delete('contact', ["`nurl` = ? AND `uid` = 0 AND `id` != ? AND NOT `self`",
 787                                         normalise_link($data["url"]), $contact_id]);
 788                         }
 789                 }
 790
 791                 self::updateAvatar($data["photo"], $uid, $contact_id);
 792
 793                 $fields = ['url', 'nurl', 'addr', 'alias', 'name', 'nick', 'keywords', 'location', 'about', 'avatar-date', 'pubkey'];
 794                 $contact = dba::selectFirst('contact', $fields, ['id' => $contact_id]);
 795
 796                 // This condition should always be true
 797                 if (!DBM::is_result($contact)) {
 798                         return $contact_id;
 799                 }
 800
 801                 $updated = ['addr' => $data['addr'],
 802                         'alias' => $data['alias'],
 803                         'url' => $data['url'],
 804                         'nurl' => normalise_link($data['url']),
 805                         'name' => $data['name'],
 806                         'nick' => $data['nick']];
 807
 808                 // Only fill the pubkey if it was empty before. We have to prevent identity theft.
 809                 if (!empty($contact['pubkey'])) {
 810                         unset($contact['pubkey']);
 811                 } else {
 812                         $updated['pubkey'] = $data['pubkey'];
 813                 }
 814
 815                 if ($data['keywords'] != '') {
 816                         $updated['keywords'] = $data['keywords'];
 817                 }
 818                 if ($data['location'] != '') {
 819                         $updated['location'] = $data['location'];
 820                 }
 821                 if ($data['about'] != '') {
 822                         $updated['about'] = $data['about'];
 823                 }
 824
 825                 if (($data["addr"] != $contact["addr"]) || ($data["alias"] != $contact["alias"])) {
 826                         $updated['uri-date'] = DateTimeFormat::utcNow();
 827                 }
 828                 if (($data["name"] != $contact["name"]) || ($data["nick"] != $contact["nick"])) {
 829                         $updated['name-date'] = DateTimeFormat::utcNow();
 830                 }
 831
 832                 $updated['avatar-date'] = DateTimeFormat::utcNow();
 833
 834                 dba::update('contact', $updated, ['id' => $contact_id], $contact);
 835
 836                 return $contact_id;
 837         }
 838
 839         /**
 840          * @brief Checks if the contact is blocked
 841          *
 842          * @param int $cid contact id
 843          *
 844          * @return boolean Is the contact blocked?
 845          */
 846         public static function isBlocked($cid)
 847         {
 848                 if ($cid == 0) {
 849                         return false;
 850                 }
 851
 852                 $blocked = dba::selectFirst('contact', ['blocked'], ['id' => $cid]);
 853                 if (!DBM::is_result($blocked)) {
 854                         return false;
 855                 }
 856                 return (bool) $blocked['blocked'];
 857         }
 858
 859         /**
 860          * @brief Checks if the contact is hidden
 861          *
 862          * @param int $cid contact id
 863          *
 864          * @return boolean Is the contact hidden?
 865          */
 866         public static function isHidden($cid)
 867         {
 868                 if ($cid == 0) {
 869                         return false;
 870                 }
 871
 872                 $hidden = dba::selectFirst('contact', ['hidden'], ['id' => $cid]);
 873                 if (!DBM::is_result($hidden)) {
 874                         return false;
 875                 }
 876                 return (bool) $hidden['hidden'];
 877         }
 878
 879         /**
 880          * @brief Returns posts from a given contact url
 881          *
 882          * @param string $contact_url Contact URL
 883          *
 884          * @return string posts in HTML
 885          */
 886         public static function getPostsFromUrl($contact_url)
 887         {
 888                 $a = self::getApp();
 889
 890                 require_once 'include/conversation.php';
 891
 892                 // There are no posts with "uid = 0" with connector networks
 893                 // This speeds up the query a lot
 894                 $r = q("SELECT `network`, `id` AS `author-id`, `contact-type` FROM `contact`
 895                         WHERE `contact`.`nurl` = '%s' AND `contact`.`uid` = 0",
 896                         dbesc(normalise_link($contact_url))
 897                 );
 898
 899                 if (!DBM::is_result($r)) {
 900                         return '';
 901                 }
 902
 903                 if (in_array($r[0]["network"], [NETWORK_DFRN, NETWORK_DIASPORA, NETWORK_OSTATUS, ""])) {
 904                         $sql = "(`item`.`uid` = 0 OR (`item`.`uid` = %d AND NOT `item`.`global`))";
 905                 } else {
 906                         $sql = "`item`.`uid` = %d";
 907                 }
 908
 909                 $author_id = intval($r[0]["author-id"]);
 910
 911                 $contact = ($r[0]["contact-type"] == ACCOUNT_TYPE_COMMUNITY ? 'owner-id' : 'author-id');
 912
 913                 $r = q(item_query() . " AND `item`.`" . $contact . "` = %d AND " . $sql .
 914                         " AND `item`.`verb` = '%s' ORDER BY `item`.`created` DESC LIMIT %d, %d",
 915                         intval($author_id), intval(local_user()), dbesc(ACTIVITY_POST),
 916                         intval($a->pager['start']), intval($a->pager['itemspage'])
 917                 );
 918
 919                 $o = conversation($a, $r, 'contact-posts', false);
 920
 921                 $o .= alt_pager($a, count($r));
 922
 923                 return $o;
 924         }
 925
 926         /**
 927          * @brief Returns the account type name
 928          *
 929          * The function can be called with either the user or the contact array
 930          *
 931          * @param array $contact contact or user array
 932          * @return string
 933          */
 934         public static function getAccountType(array $contact)
 935         {
 936                 // There are several fields that indicate that the contact or user is a forum
 937                 // "page-flags" is a field in the user table,
 938                 // "forum" and "prv" are used in the contact table. They stand for PAGE_COMMUNITY and PAGE_PRVGROUP.
 939                 // "community" is used in the gcontact table and is true if the contact is PAGE_COMMUNITY or PAGE_PRVGROUP.
 940                 if ((isset($contact['page-flags']) && (intval($contact['page-flags']) == PAGE_COMMUNITY))
 941                         || (isset($contact['page-flags']) && (intval($contact['page-flags']) == PAGE_PRVGROUP))
 942                         || (isset($contact['forum']) && intval($contact['forum']))
 943                         || (isset($contact['prv']) && intval($contact['prv']))
 944                         || (isset($contact['community']) && intval($contact['community']))
 945                 ) {
 946                         $type = ACCOUNT_TYPE_COMMUNITY;
 947                 } else {
 948                         $type = ACCOUNT_TYPE_PERSON;
 949                 }
 950
 951                 // The "contact-type" (contact table) and "account-type" (user table) are more general then the chaos from above.
 952                 if (isset($contact["contact-type"])) {
 953                         $type = $contact["contact-type"];
 954                 }
 955
 956                 if (isset($contact["account-type"])) {
 957                         $type = $contact["account-type"];
 958                 }
 959
 960                 switch ($type) {
 961                         case ACCOUNT_TYPE_ORGANISATION:
 962                                 $account_type = L10n::t("Organisation");
 963                                 break;
 964                         case ACCOUNT_TYPE_NEWS:
 965                                 $account_type = L10n::t('News');
 966                                 break;
 967                         case ACCOUNT_TYPE_COMMUNITY:
 968                                 $account_type = L10n::t("Forum");
 969                                 break;
 970                         default:
 971                                 $account_type = "";
 972                                 break;
 973                 }
 974
 975                 return $account_type;
 976         }
 977
 978         /**
 979          * @brief Blocks a contact
 980          *
 981          * @param int $uid
 982          * @return bool
 983          */
 984         public static function block($uid)
 985         {
 986                 $return = dba::update('contact', ['blocked' => true], ['id' => $uid]);
 987
 988                 return $return;
 989         }
 990
 991         /**
 992          * @brief Unblocks a contact
 993          *
 994          * @param int $uid
 995          * @return bool
 996          */
 997         public static function unblock($uid)
 998         {
 999                 $return = dba::update('contact', ['blocked' => false], ['id' => $uid]);
1000
1001                 return $return;
1002         }
1003
1004         /**
1005          * @brief Updates the avatar links in a contact only if needed
1006          *
1007          * @param string $avatar Link to avatar picture
1008          * @param int    $uid    User id of contact owner
1009          * @param int    $cid    Contact id
1010          * @param bool   $force  force picture update
1011          *
1012          * @return array Returns array of the different avatar sizes
1013          */
1014         public static function updateAvatar($avatar, $uid, $cid, $force = false)
1015         {
1016                 $contact = dba::selectFirst('contact', ['avatar', 'photo', 'thumb', 'micro', 'nurl'], ['id' => $cid]);
1017                 if (!DBM::is_result($contact)) {
1018                         return false;
1019                 } else {
1020                         $data = [$contact["photo"], $contact["thumb"], $contact["micro"]];
1021                 }
1022
1023                 if (($contact["avatar"] != $avatar) || $force) {
1024                         $photos = Photo::importProfilePhoto($avatar, $uid, $cid, true);
1025
1026                         if ($photos) {
1027                                 dba::update(
1028                                         'contact',
1029                                         ['avatar' => $avatar, 'photo' => $photos[0], 'thumb' => $photos[1], 'micro' => $photos[2], 'avatar-date' => DateTimeFormat::utcNow()],
1030                                         ['id' => $cid]
1031                                 );
1032
1033                                 // Update the public contact (contact id = 0)
1034                                 if ($uid != 0) {
1035                                         $pcontact = dba::selectFirst('contact', ['id'], ['nurl' => $contact['nurl']]);
1036                                         if (DBM::is_result($pcontact)) {
1037                                                 self::updateAvatar($avatar, 0, $pcontact['id'], $force);
1038                                         }
1039                                 }
1040
1041                                 return $photos;
1042                         }
1043                 }
1044
1045                 return $data;
1046         }
1047
1048         /**
1049          * @param integer $id contact id
1050          * @return boolean
1051          */
1052         public static function updateFromProbe($id)
1053         {
1054                 /*
1055                   Warning: Never ever fetch the public key via Probe::uri and write it into the contacts.
1056                   This will reliably kill your communication with Friendica contacts.
1057                  */
1058
1059                 $fields = ['url', 'nurl', 'addr', 'alias', 'batch', 'notify', 'poll', 'poco', 'network'];
1060                 $contact = dba::selectFirst('contact', $fields, ['id' => $id]);
1061                 if (!DBM::is_result($contact)) {
1062                         return false;
1063                 }
1064
1065                 $ret = Probe::uri($contact["url"]);
1066
1067                 // If Probe::uri fails the network code will be different
1068                 if ($ret["network"] != $contact["network"]) {
1069                         return false;
1070                 }
1071
1072                 $update = false;
1073
1074                 // make sure to not overwrite existing values with blank entries
1075                 foreach ($ret as $key => $val) {
1076                         if (isset($contact[$key]) && ($contact[$key] != "") && ($val == "")) {
1077                                 $ret[$key] = $contact[$key];
1078                         }
1079
1080                         if (isset($contact[$key]) && ($ret[$key] != $contact[$key])) {
1081                                 $update = true;
1082                         }
1083                 }
1084
1085                 if (!$update) {
1086                         return true;
1087                 }
1088
1089                 dba::update(
1090                         'contact', [
1091                                 'url'    => $ret['url'],
1092                                 'nurl'   => normalise_link($ret['url']),
1093                                 'addr'   => $ret['addr'],
1094                                 'alias'  => $ret['alias'],
1095                                 'batch'  => $ret['batch'],
1096                                 'notify' => $ret['notify'],
1097                                 'poll'   => $ret['poll'],
1098                                 'poco'   => $ret['poco']
1099                         ],
1100                         ['id' => $id]
1101                 );
1102
1103                 // Update the corresponding gcontact entry
1104                 PortableContact::lastUpdated($ret["url"]);
1105
1106                 return true;
1107         }
1108
1109         /**
1110          * Takes a $uid and a url/handle and adds a new contact
1111          * Currently if the contact is DFRN, interactive needs to be true, to redirect to the
1112          * dfrn_request page.
1113          *
1114          * Otherwise this can be used to bulk add StatusNet contacts, Twitter contacts, etc.
1115          *
1116          * Returns an array
1117          * $return['success'] boolean true if successful
1118          * $return['message'] error text if success is false.
1119          *
1120          * @brief Takes a $uid and a url/handle and adds a new contact
1121          * @param int    $uid
1122          * @param string $url
1123          * @param bool   $interactive
1124          * @param string $network
1125          * @return boolean|string
1126          */
1127         public static function createFromProbe($uid, $url, $interactive = false, $network = '')
1128         {
1129                 $result = ['cid' => -1, 'success' => false, 'message' => ''];
1130
1131                 $a = get_app();
1132
1133                 // remove ajax junk, e.g. Twitter
1134                 $url = str_replace('/#!/', '/', $url);
1135
1136                 if (!Network::isUrlAllowed($url)) {
1137                         $result['message'] = L10n::t('Disallowed profile URL.');
1138                         return $result;
1139                 }
1140
1141                 if (Network::isUrlBlocked($url)) {
1142                         $result['message'] = L10n::t('Blocked domain');
1143                         return $result;
1144                 }
1145
1146                 if (!$url) {
1147                         $result['message'] = L10n::t('Connect URL missing.');
1148                         return $result;
1149                 }
1150
1151                 $arr = ['url' => $url, 'contact' => []];
1152
1153                 Addon::callHooks('follow', $arr);
1154
1155                 if (empty($arr)) {
1156                         $result['message'] = L10n::t('The contact could not be added. Please check the relevant network credentials in your Settings -> Social Networks page.');
1157                         return $result;
1158                 }
1159
1160                 if (x($arr['contact'], 'name')) {
1161                         $ret = $arr['contact'];
1162                 } else {
1163                         $ret = Probe::uri($url, $network, $uid, false);
1164                 }
1165
1166                 if (($network != '') && ($ret['network'] != $network)) {
1167                         logger('Expected network ' . $network . ' does not match actual network ' . $ret['network']);
1168                         return result;
1169                 }
1170
1171                 if ($ret['network'] === NETWORK_DFRN) {
1172                         if ($interactive) {
1173                                 if (strlen($a->path)) {
1174                                         $myaddr = bin2hex(System::baseUrl() . '/profile/' . $a->user['nickname']);
1175                                 } else {
1176                                         $myaddr = bin2hex($a->user['nickname'] . '@' . $a->get_hostname());
1177                                 }
1178
1179                                 goaway($ret['request'] . "&addr=$myaddr");
1180
1181                                 // NOTREACHED
1182                         }
1183                 } elseif (Config::get('system', 'dfrn_only')) {
1184                         $result['message'] = L10n::t('This site is not configured to allow communications with other networks.') . EOL;
1185                         $result['message'] != L10n::t('No compatible communication protocols or feeds were discovered.') . EOL;
1186                         return $result;
1187                 }
1188
1189                 // This extra param just confuses things, remove it
1190                 if ($ret['network'] === NETWORK_DIASPORA) {
1191                         $ret['url'] = str_replace('?absolute=true', '', $ret['url']);
1192                 }
1193
1194                 // do we have enough information?
1195
1196                 if (!((x($ret, 'name')) && (x($ret, 'poll')) && ((x($ret, 'url')) || (x($ret, 'addr'))))) {
1197                         $result['message'] .= L10n::t('The profile address specified does not provide adequate information.') . EOL;
1198                         if (!x($ret, 'poll')) {
1199                                 $result['message'] .= L10n::t('No compatible communication protocols or feeds were discovered.') . EOL;
1200                         }
1201                         if (!x($ret, 'name')) {
1202                                 $result['message'] .= L10n::t('An author or name was not found.') . EOL;
1203                         }
1204                         if (!x($ret, 'url')) {
1205                                 $result['message'] .= L10n::t('No browser URL could be matched to this address.') . EOL;
1206                         }
1207                         if (strpos($url, '@') !== false) {
1208                                 $result['message'] .= L10n::t('Unable to match @-style Identity Address with a known protocol or email contact.') . EOL;
1209                                 $result['message'] .= L10n::t('Use mailto: in front of address to force email check.') . EOL;
1210                         }
1211                         return $result;
1212                 }
1213
1214                 if ($ret['network'] === NETWORK_OSTATUS && Config::get('system', 'ostatus_disabled')) {
1215                         $result['message'] .= L10n::t('The profile address specified belongs to a network which has been disabled on this site.') . EOL;
1216                         $ret['notify'] = '';
1217                 }
1218
1219                 if (!$ret['notify']) {
1220                         $result['message'] .= L10n::t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL;
1221                 }
1222
1223                 $writeable = ((($ret['network'] === NETWORK_OSTATUS) && ($ret['notify'])) ? 1 : 0);
1224
1225                 $subhub = (($ret['network'] === NETWORK_OSTATUS) ? true : false);
1226
1227                 $hidden = (($ret['network'] === NETWORK_MAIL) ? 1 : 0);
1228
1229                 if (in_array($ret['network'], [NETWORK_MAIL, NETWORK_DIASPORA])) {
1230                         $writeable = 1;
1231                 }
1232
1233                 // check if we already have a contact
1234                 // the poll url is more reliable than the profile url, as we may have
1235                 // indirect links or webfinger links
1236
1237                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` IN ('%s', '%s') AND `network` = '%s' LIMIT 1",
1238                         intval($uid),
1239                         dbesc($ret['poll']),
1240                         dbesc(normalise_link($ret['poll'])),
1241                         dbesc($ret['network'])
1242                 );
1243
1244                 if (!DBM::is_result($r)) {
1245                         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` = '%s' LIMIT 1",
1246                                 intval($uid),
1247                                 dbesc(normalise_link($url)),
1248                                 dbesc($ret['network'])
1249                         );
1250                 }
1251
1252                 if (DBM::is_result($r)) {
1253                         // update contact
1254                         $new_relation = (($r[0]['rel'] == CONTACT_IS_FOLLOWER) ? CONTACT_IS_FRIEND : CONTACT_IS_SHARING);
1255
1256                         $fields = ['rel' => $new_relation, 'subhub' => $subhub, 'readonly' => false];
1257                         dba::update('contact', $fields, ['id' => $r[0]['id']]);
1258                 } else {
1259                         $new_relation = ((in_array($ret['network'], [NETWORK_MAIL])) ? CONTACT_IS_FRIEND : CONTACT_IS_SHARING);
1260
1261                         // create contact record
1262                         dba::insert('contact', [
1263                                 'uid'     => $uid,
1264                                 'created' => DateTimeFormat::utcNow(),
1265                                 'url'     => $ret['url'],
1266                                 'nurl'    => normalise_link($ret['url']),
1267                                 'addr'    => $ret['addr'],
1268                                 'alias'   => $ret['alias'],
1269                                 'batch'   => $ret['batch'],
1270                                 'notify'  => $ret['notify'],
1271                                 'poll'    => $ret['poll'],
1272                                 'poco'    => $ret['poco'],
1273                                 'name'    => $ret['name'],
1274                                 'nick'    => $ret['nick'],
1275                                 'network' => $ret['network'],
1276                                 'pubkey'  => $ret['pubkey'],
1277                                 'rel'     => $new_relation,
1278                                 'priority'=> $ret['priority'],
1279                                 'writable'=> $writeable,
1280                                 'hidden'  => $hidden,
1281                                 'blocked' => 0,
1282                                 'readonly'=> 0,
1283                                 'pending' => 0,
1284                                 'subhub'  => $subhub
1285                         ]);
1286                 }
1287
1288                 $contact = dba::selectFirst('contact', [], ['url' => $ret['url'], 'network' => $ret['network'], 'uid' => $uid]);
1289                 if (!DBM::is_result($contact)) {
1290                         $result['message'] .= L10n::t('Unable to retrieve contact information.') . EOL;
1291                         return $result;
1292                 }
1293
1294                 $contact_id = $contact['id'];
1295                 $result['cid'] = $contact_id;
1296
1297                 Group::addMember(User::getDefaultGroup($uid, $contact["network"]), $contact_id);
1298
1299                 // Update the avatar
1300                 self::updateAvatar($ret['photo'], $uid, $contact_id);
1301
1302                 // pull feed and consume it, which should subscribe to the hub.
1303
1304                 Worker::add(PRIORITY_HIGH, "OnePoll", $contact_id, "force");
1305
1306                 $r = q("SELECT `contact`.*, `user`.* FROM `contact` INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
1307                         WHERE `user`.`uid` = %d AND `contact`.`self` LIMIT 1",
1308                         intval($uid)
1309                 );
1310
1311                 if (DBM::is_result($r)) {
1312                         if (($contact['network'] == NETWORK_OSTATUS) && (strlen($contact['notify']))) {
1313                                 // create a follow slap
1314                                 $item = [];
1315                                 $item['verb'] = ACTIVITY_FOLLOW;
1316                                 $item['follow'] = $contact["url"];
1317                                 $slap = OStatus::salmon($item, $r[0]);
1318                                 Salmon::slapper($r[0], $contact['notify'], $slap);
1319                         }
1320
1321                         if ($contact['network'] == NETWORK_DIASPORA) {
1322                                 $ret = Diaspora::sendShare($a->user, $contact);
1323                                 logger('share returns: ' . $ret);
1324                         }
1325                 }
1326
1327                 $result['success'] = true;
1328                 return $result;
1329         }
1330
1331         public static function updateSslPolicy($contact, $new_policy)
1332         {
1333                 $ssl_changed = false;
1334                 if ((intval($new_policy) == SSL_POLICY_SELFSIGN || $new_policy === 'self') && strstr($contact['url'], 'https:')) {
1335                         $ssl_changed = true;
1336                         $contact['url']     =   str_replace('https:', 'http:', $contact['url']);
1337                         $contact['request'] =   str_replace('https:', 'http:', $contact['request']);
1338                         $contact['notify']  =   str_replace('https:', 'http:', $contact['notify']);
1339                         $contact['poll']    =   str_replace('https:', 'http:', $contact['poll']);
1340                         $contact['confirm'] =   str_replace('https:', 'http:', $contact['confirm']);
1341                         $contact['poco']    =   str_replace('https:', 'http:', $contact['poco']);
1342                 }
1343
1344                 if ((intval($new_policy) == SSL_POLICY_FULL || $new_policy === 'full') && strstr($contact['url'], 'http:')) {
1345                         $ssl_changed = true;
1346                         $contact['url']     =   str_replace('http:', 'https:', $contact['url']);
1347                         $contact['request'] =   str_replace('http:', 'https:', $contact['request']);
1348                         $contact['notify']  =   str_replace('http:', 'https:', $contact['notify']);
1349                         $contact['poll']    =   str_replace('http:', 'https:', $contact['poll']);
1350                         $contact['confirm'] =   str_replace('http:', 'https:', $contact['confirm']);
1351                         $contact['poco']    =   str_replace('http:', 'https:', $contact['poco']);
1352                 }
1353
1354                 if ($ssl_changed) {
1355                         $fields = ['url' => $contact['url'], 'request' => $contact['request'],
1356                                         'notify' => $contact['notify'], 'poll' => $contact['poll'],
1357                                         'confirm' => $contact['confirm'], 'poco' => $contact['poco']];
1358                         dba::update('contact', $fields, ['id' => $contact['id']]);
1359                 }
1360
1361                 return $contact;
1362         }
1363
1364         public static function addRelationship($importer, $contact, $datarray, $item, $sharing = false) {
1365                 $url = notags(trim($datarray['author-link']));
1366                 $name = notags(trim($datarray['author-name']));
1367                 $photo = notags(trim($datarray['author-avatar']));
1368                 $nick = '';
1369
1370                 if (is_object($item)) {
1371                         $rawtag = $item->get_item_tags(NAMESPACE_ACTIVITY,'actor');
1372                         if ($rawtag && $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data']) {
1373                                 $nick = $rawtag[0]['child'][NAMESPACE_POCO]['preferredUsername'][0]['data'];
1374                         }
1375                 } else {
1376                         $nick = $item;
1377                 }
1378
1379                 if (is_array($contact)) {
1380                         if (($contact['network'] == NETWORK_OSTATUS && $contact['rel'] == CONTACT_IS_SHARING)
1381                                 || ($sharing && $contact['rel'] == CONTACT_IS_FOLLOWER)) {
1382                                 dba::update('contact', ['rel' => CONTACT_IS_FRIEND, 'writable' => true],
1383                                                 ['id' => $contact['id'], 'uid' => $importer['uid']]);
1384                         }
1385                         // send email notification to owner?
1386                 } else {
1387                         // create contact record
1388                         q("INSERT INTO `contact` (`uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
1389                                 `blocked`, `readonly`, `pending`, `writable`)
1390                                 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1)",
1391                                 intval($importer['uid']),
1392                                 dbesc(DateTimeFormat::utcNow()),
1393                                 dbesc($url),
1394                                 dbesc(normalise_link($url)),
1395                                 dbesc($name),
1396                                 dbesc($nick),
1397                                 dbesc($photo),
1398                                 dbesc(NETWORK_OSTATUS),
1399                                 intval(CONTACT_IS_FOLLOWER)
1400                         );
1401
1402                         $contact_record = [
1403                                 'id' => dba::lastInsertId(),
1404                                 'network' => NETWORK_OSTATUS
1405                         ];
1406                         Contact::updateAvatar($photo, $importer["uid"], $contact_record["id"], true);
1407
1408                         /// @TODO Encapsulate this into a function/method
1409                         $fields = ['uid', 'username', 'email', 'page-flags', 'notify-flags', 'language'];
1410                         $user = dba::selectFirst('user', $fields, ['uid' => $importer['uid']]);
1411                         if (DBM::is_result($user) && !in_array($user['page-flags'], [PAGE_SOAPBOX, PAGE_FREELOVE, PAGE_COMMUNITY])) {
1412                                 // create notification
1413                                 $hash = random_string();
1414
1415                                 if (is_array($contact_record)) {
1416                                         dba::insert('intro', ['uid' => $importer['uid'], 'contact-id' => $contact_record['id'],
1417                                                                 'blocked' => false, 'knowyou' => false,
1418                                                                 'hash' => $hash, 'datetime' => DateTimeFormat::utcNow()]);
1419                                 }
1420
1421                                 Group::addMember(User::getDefaultGroup($importer['uid'], $contact_record["network"]), $contact_record['id']);
1422
1423                                 if (($user['notify-flags'] & NOTIFY_INTRO) &&
1424                                         in_array($user['page-flags'], [PAGE_NORMAL])) {
1425
1426                                         notification([
1427                                                 'type'         => NOTIFY_INTRO,
1428                                                 'notify_flags' => $user['notify-flags'],
1429                                                 'language'     => $user['language'],
1430                                                 'to_name'      => $user['username'],
1431                                                 'to_email'     => $user['email'],
1432                                                 'uid'          => $user['uid'],
1433                                                 'link'             => System::baseUrl() . '/notifications/intro',
1434                                                 'source_name'  => ((strlen(stripslashes($contact_record['name']))) ? stripslashes($contact_record['name']) : L10n::t('[Name Withheld]')),
1435                                                 'source_link'  => $contact_record['url'],
1436                                                 'source_photo' => $contact_record['photo'],
1437                                                 'verb'         => ($sharing ? ACTIVITY_FRIEND : ACTIVITY_FOLLOW),
1438                                                 'otype'        => 'intro'
1439                                         ]);
1440
1441                                 }
1442                         } elseif (DBM::is_result($user) && in_array($user['page-flags'], [PAGE_SOAPBOX, PAGE_FREELOVE, PAGE_COMMUNITY])) {
1443                                 q("UPDATE `contact` SET `pending` = 0 WHERE `uid` = %d AND `url` = '%s' AND `pending` LIMIT 1",
1444                                                 intval($importer['uid']),
1445                                                 dbesc($url)
1446                                 );
1447                         }
1448                 }
1449         }
1450
1451         public static function removeFollower($importer, $contact, array $datarray = [], $item = "") {
1452
1453                 if (($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_SHARING)) {
1454                         dba::update('contact', ['rel' => CONTACT_IS_SHARING], ['id' => $contact['id']]);
1455                 } else {
1456                         Contact::remove($contact['id']);
1457                 }
1458         }
1459
1460         public static function removeSharer($importer, $contact, array $datarray = [], $item = "") {
1461
1462                 if (($contact['rel'] == CONTACT_IS_FRIEND) || ($contact['rel'] == CONTACT_IS_FOLLOWER)) {
1463                         dba::update('contact', ['rel' => CONTACT_IS_FOLLOWER], ['id' => $contact['id']]);
1464                 } else {
1465                         Contact::remove($contact['id']);
1466                 }
1467         }
1468
1469         /**
1470          * @brief Create a birthday event.
1471          *
1472          * Update the year and the birthday.
1473          */
1474         public static function updateBirthdays()
1475         {
1476                 // This only handles foreign or alien networks where a birthday has been provided.
1477                 // In-network birthdays are handled within local_delivery
1478
1479                 $r = q("SELECT * FROM `contact` WHERE `bd` != '' AND `bd` > '0001-01-01' AND SUBSTRING(`bd`, 1, 4) != `bdyear` ");
1480                 if (DBM::is_result($r)) {
1481                         foreach ($r as $rr) {
1482                                 logger('update_contact_birthday: ' . $rr['bd']);
1483
1484                                 $nextbd = DateTimeFormat::utcNow('Y') . substr($rr['bd'], 4);
1485
1486                                 /*
1487                                  * Add new birthday event for this person
1488                                  *
1489                                  * $bdtext is just a readable placeholder in case the event is shared
1490                                  * with others. We will replace it during presentation to our $importer
1491                                  * to contain a sparkle link and perhaps a photo.
1492                                  */
1493
1494                                 // Check for duplicates
1495                                 $s = q("SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
1496                                         intval($rr['uid']), intval($rr['id']), dbesc(DateTimeFormat::utc($nextbd)), dbesc('birthday'));
1497
1498                                 if (DBM::is_result($s)) {
1499                                         continue;
1500                                 }
1501
1502                                 $bdtext = L10n::t('%s\'s birthday', $rr['name']);
1503                                 $bdtext2 = L10n::t('Happy Birthday %s', ' [url=' . $rr['url'] . ']' . $rr['name'] . '[/url]');
1504
1505                                 q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`)
1506                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ", intval($rr['uid']), intval($rr['id']),
1507                                         dbesc(DateTimeFormat::utcNow()), dbesc(DateTimeFormat::utcNow()), dbesc(DateTimeFormat::utc($nextbd)),
1508                                         dbesc(DateTimeFormat::utc($nextbd . ' + 1 day ')), dbesc($bdtext), dbesc($bdtext2), dbesc('birthday'),
1509                                         intval(0)
1510                                 );
1511
1512
1513                                 // update bdyear
1514                                 q("UPDATE `contact` SET `bdyear` = '%s', `bd` = '%s' WHERE `uid` = %d AND `id` = %d", dbesc(substr($nextbd, 0, 4)),
1515                                         dbesc($nextbd), intval($rr['uid']), intval($rr['id'])
1516                                 );
1517                         }
1518                 }
1519         }
1520 }