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\Protocol;
  13 use Friendica\Core\System;
  14 use Friendica\Core\Worker;
  15 use Friendica\Database\DBA;
  16 use Friendica\Model\Profile;
  17 use Friendica\Network\Probe;
  18 use Friendica\Object\Image;
  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
  26 require_once 'boot.php';
  27 require_once 'include/dba.php';
  28 require_once 'include/text.php';
  29
  30 /**
  31  * @brief functions for interacting with a contact
  32  */
  33 class Contact extends BaseObject
  34 {
  35         /**
  36          * @name page/profile types
  37          *
  38          * PAGE_NORMAL is a typical personal profile account
  39          * PAGE_SOAPBOX automatically approves all friend requests as Contact::SHARING, (readonly)
  40          * PAGE_COMMUNITY automatically approves all friend requests as Contact::SHARING, but with
  41          *      write access to wall and comments (no email and not included in page owner's ACL lists)
  42          * PAGE_FREELOVE automatically approves all friend requests as full friends (Contact::FRIEND).
  43          *
  44          * @{
  45          */
  46         const PAGE_NORMAL    = 0;
  47         const PAGE_SOAPBOX   = 1;
  48         const PAGE_COMMUNITY = 2;
  49         const PAGE_FREELOVE  = 3;
  50         const PAGE_BLOG      = 4;
  51         const PAGE_PRVGROUP  = 5;
  52         /**
  53          * @}
  54          */
  55
  56         /**
  57          * @name account types
  58          *
  59          * ACCOUNT_TYPE_PERSON - the account belongs to a person
  60          *      Associated page types: PAGE_NORMAL, PAGE_SOAPBOX, PAGE_FREELOVE
  61          *
  62          * ACCOUNT_TYPE_ORGANISATION - the account belongs to an organisation
  63          *      Associated page type: PAGE_SOAPBOX
  64          *
  65          * ACCOUNT_TYPE_NEWS - the account is a news reflector
  66          *      Associated page type: PAGE_SOAPBOX
  67          *
  68          * ACCOUNT_TYPE_COMMUNITY - the account is community forum
  69          *      Associated page types: PAGE_COMMUNITY, PAGE_PRVGROUP
  70          *
  71          * ACCOUNT_TYPE_RELAY - the account is a relay
  72          *      This will only be assigned to contacts, not to user accounts
  73          * @{
  74          */
  75         const ACCOUNT_TYPE_PERSON =       0;
  76         const ACCOUNT_TYPE_ORGANISATION = 1;
  77         const ACCOUNT_TYPE_NEWS =         2;
  78         const ACCOUNT_TYPE_COMMUNITY =    3;
  79         const ACCOUNT_TYPE_RELAY =        4;
  80         /**
  81          * @}
  82          */
  83
  84         /**
  85          * @name Contact_is
  86          *
  87          * Relationship types
  88          * @{
  89          */
  90         const FOLLOWER = 1;
  91         const SHARING  = 2;
  92         const FRIEND   = 3;
  93         /**
  94          * @}
  95          */
  96
  97         /**
  98          * @brief Returns a list of contacts belonging in a group
  99          *
 100          * @param int $gid
 101          * @return array
 102          */
 103         public static function getByGroupId($gid)
 104         {
 105                 $return = [];
 106
 107                 if (intval($gid)) {
 108                         $stmt = DBA::p('SELECT `group_member`.`contact-id`, `contact`.*
 109                                 FROM `contact`
 110                                 INNER JOIN `group_member`
 111                                         ON `contact`.`id` = `group_member`.`contact-id`
 112                                 WHERE `gid` = ?
 113                                 AND `contact`.`uid` = ?
 114                                 AND NOT `contact`.`self`
 115                                 AND NOT `contact`.`blocked`
 116                                 AND NOT `contact`.`pending`
 117                                 ORDER BY `contact`.`name` ASC',
 118                                 $gid,
 119                                 local_user()
 120                         );
 121
 122                         if (DBA::isResult($stmt)) {
 123                                 $return = DBA::toArray($stmt);
 124                         }
 125                 }
 126
 127                 return $return;
 128         }
 129
 130         /**
 131          * @brief Returns the count of OStatus contacts in a group
 132          *
 133          * @param int $gid
 134          * @return int
 135          */
 136         public static function getOStatusCountByGroupId($gid)
 137         {
 138                 $return = 0;
 139                 if (intval($gid)) {
 140                         $contacts = DBA::fetchFirst('SELECT COUNT(*) AS `count`
 141                                 FROM `contact`
 142                                 INNER JOIN `group_member`
 143                                         ON `contact`.`id` = `group_member`.`contact-id`
 144                                 WHERE `gid` = ?
 145                                 AND `contact`.`uid` = ?
 146                                 AND `contact`.`network` = ?
 147                                 AND `contact`.`notify` != ""',
 148                                 $gid,
 149                                 local_user(),
 150                                 Protocol::OSTATUS
 151                         );
 152                         $return = $contacts['count'];
 153                 }
 154
 155                 return $return;
 156         }
 157
 158         /**
 159          * Creates the self-contact for the provided user id
 160          *
 161          * @param int $uid
 162          * @return bool Operation success
 163          */
 164         public static function createSelfFromUserId($uid)
 165         {
 166                 // Only create the entry if it doesn't exist yet
 167                 if (DBA::exists('contact', ['uid' => $uid, 'self' => true])) {
 168                         return true;
 169                 }
 170
 171                 $user = DBA::selectFirst('user', ['uid', 'username', 'nickname'], ['uid' => $uid]);
 172                 if (!DBA::isResult($user)) {
 173                         return false;
 174                 }
 175
 176                 $return = DBA::insert('contact', [
 177                         'uid'         => $user['uid'],
 178                         'created'     => DateTimeFormat::utcNow(),
 179                         'self'        => 1,
 180                         'name'        => $user['username'],
 181                         'nick'        => $user['nickname'],
 182                         'photo'       => System::baseUrl() . '/photo/profile/' . $user['uid'] . '.jpg',
 183                         'thumb'       => System::baseUrl() . '/photo/avatar/'  . $user['uid'] . '.jpg',
 184                         'micro'       => System::baseUrl() . '/photo/micro/'   . $user['uid'] . '.jpg',
 185                         'blocked'     => 0,
 186                         'pending'     => 0,
 187                         'url'         => System::baseUrl() . '/profile/' . $user['nickname'],
 188                         'nurl'        => normalise_link(System::baseUrl() . '/profile/' . $user['nickname']),
 189                         'addr'        => $user['nickname'] . '@' . substr(System::baseUrl(), strpos(System::baseUrl(), '://') + 3),
 190                         'request'     => System::baseUrl() . '/dfrn_request/' . $user['nickname'],
 191                         'notify'      => System::baseUrl() . '/dfrn_notify/'  . $user['nickname'],
 192                         'poll'        => System::baseUrl() . '/dfrn_poll/'    . $user['nickname'],
 193                         'confirm'     => System::baseUrl() . '/dfrn_confirm/' . $user['nickname'],
 194                         'poco'        => System::baseUrl() . '/poco/'         . $user['nickname'],
 195                         'name-date'   => DateTimeFormat::utcNow(),
 196                         'uri-date'    => DateTimeFormat::utcNow(),
 197                         'avatar-date' => DateTimeFormat::utcNow(),
 198                         'closeness'   => 0
 199                 ]);
 200
 201                 return $return;
 202         }
 203
 204         /**
 205          * Updates the self-contact for the provided user id
 206          *
 207          * @param int $uid
 208          * @param boolean $update_avatar Force the avatar update
 209          */
 210         public static function updateSelfFromUserID($uid, $update_avatar = false)
 211         {
 212                 $fields = ['id', 'name', 'nick', 'location', 'about', 'keywords', 'gender', 'avatar',
 213                         'xmpp', 'contact-type', 'forum', 'prv', 'avatar-date', 'nurl'];
 214                 $self = DBA::selectFirst('contact', $fields, ['uid' => $uid, 'self' => true]);
 215                 if (!DBA::isResult($self)) {
 216                         return;
 217                 }
 218
 219                 $fields = ['nickname', 'page-flags', 'account-type'];
 220                 $user = DBA::selectFirst('user', $fields, ['uid' => $uid]);
 221                 if (!DBA::isResult($user)) {
 222                         return;
 223                 }
 224
 225                 $fields = ['name', 'photo', 'thumb', 'about', 'address', 'locality', 'region',
 226                         'country-name', 'gender', 'pub_keywords', 'xmpp'];
 227                 $profile = DBA::selectFirst('profile', $fields, ['uid' => $uid, 'is-default' => true]);
 228                 if (!DBA::isResult($profile)) {
 229                         return;
 230                 }
 231
 232                 $fields = ['name' => $profile['name'], 'nick' => $user['nickname'],
 233                         'avatar-date' => $self['avatar-date'], 'location' => Profile::formatLocation($profile),
 234                         'about' => $profile['about'], 'keywords' => $profile['pub_keywords'],
 235                         'gender' => $profile['gender'], 'avatar' => $profile['photo'],
 236                         'contact-type' => $user['account-type'], 'xmpp' => $profile['xmpp']];
 237
 238                 $avatar = DBA::selectFirst('photo', ['resource-id', 'type'], ['uid' => $uid, 'profile' => true]);
 239                 if (DBA::isResult($avatar)) {
 240                         if ($update_avatar) {
 241                                 $fields['avatar-date'] = DateTimeFormat::utcNow();
 242                         }
 243
 244                         // Creating the path to the avatar, beginning with the file suffix
 245                         $types = Image::supportedTypes();
 246                         if (isset($types[$avatar['type']])) {
 247                                 $file_suffix = $types[$avatar['type']];
 248                         } else {
 249                                 $file_suffix = 'jpg';
 250                         }
 251
 252                         // We are adding a timestamp value so that other systems won't use cached content
 253                         $timestamp = strtotime($fields['avatar-date']);
 254
 255                         $prefix = System::baseUrl() . '/photo/' .$avatar['resource-id'] . '-';
 256                         $suffix = '.' . $file_suffix . '?ts=' . $timestamp;
 257
 258                         $fields['photo'] = $prefix . '4' . $suffix;
 259                         $fields['thumb'] = $prefix . '5' . $suffix;
 260                         $fields['micro'] = $prefix . '6' . $suffix;
 261                 } else {
 262                         // We hadn't found a photo entry, so we use the default avatar
 263                         $fields['photo'] = System::baseUrl() . '/images/person-175.jpg';
 264                         $fields['thumb'] = System::baseUrl() . '/images/person-80.jpg';
 265                         $fields['micro'] = System::baseUrl() . '/images/person-48.jpg';
 266                 }
 267
 268                 $fields['forum'] = $user['page-flags'] == self::PAGE_COMMUNITY;
 269                 $fields['prv'] = $user['page-flags'] == self::PAGE_PRVGROUP;
 270
 271                 // it seems as if ported accounts can have wrong values, so we make sure that now everything is fine.
 272                 $fields['url'] = System::baseUrl() . '/profile/' . $user['nickname'];
 273                 $fields['nurl'] = normalise_link($fields['url']);
 274                 $fields['addr'] = $user['nickname'] . '@' . substr(System::baseUrl(), strpos(System::baseUrl(), '://') + 3);
 275                 $fields['request'] = System::baseUrl() . '/dfrn_request/' . $user['nickname'];
 276                 $fields['notify'] = System::baseUrl() . '/dfrn_notify/'  . $user['nickname'];
 277                 $fields['poll'] = System::baseUrl() . '/dfrn_poll/'    . $user['nickname'];
 278                 $fields['confirm'] = System::baseUrl() . '/dfrn_confirm/' . $user['nickname'];
 279                 $fields['poco'] = System::baseUrl() . '/poco/'         . $user['nickname'];
 280
 281                 $update = false;
 282
 283                 foreach ($fields as $field => $content) {
 284                         if (isset($self[$field]) && $self[$field] != $content) {
 285                                 $update = true;
 286                         }
 287                 }
 288
 289                 if ($update) {
 290                         $fields['name-date'] = DateTimeFormat::utcNow();
 291                         DBA::update('contact', $fields, ['id' => $self['id']]);
 292
 293                         // Update the public contact as well
 294                         DBA::update('contact', $fields, ['uid' => 0, 'nurl' => $self['nurl']]);
 295
 296                         // Update the profile
 297                         $fields = ['photo' => System::baseUrl() . '/photo/profile/' .$uid . '.jpg',
 298                                 'thumb' => System::baseUrl() . '/photo/avatar/' . $uid .'.jpg'];
 299                         DBA::update('profile', $fields, ['uid' => $uid, 'is-default' => true]);
 300                 }
 301         }
 302
 303         /**
 304          * @brief Marks a contact for removal
 305          *
 306          * @param int $id contact id
 307          * @return null
 308          */
 309         public static function remove($id)
 310         {
 311                 // We want just to make sure that we don't delete our "self" contact
 312                 $contact = DBA::selectFirst('contact', ['uid'], ['id' => $id, 'self' => false]);
 313                 if (!DBA::isResult($contact) || !intval($contact['uid'])) {
 314                         return;
 315                 }
 316
 317                 // Archive the contact
 318                 DBA::update('contact', ['archive' => true, 'network' => Protocol::PHANTOM], ['id' => $id]);
 319
 320                 // Delete it in the background
 321                 Worker::add(PRIORITY_LOW, 'RemoveContact', $id);
 322         }
 323
 324         /**
 325          * @brief Sends an unfriend message. Does not remove the contact
 326          *
 327          * @param array $user    User unfriending
 328          * @param array $contact Contact unfriended
 329          * @return void
 330          */
 331         public static function terminateFriendship(array $user, array $contact)
 332         {
 333                 if (in_array($contact['network'], [Protocol::OSTATUS, Protocol::DFRN])) {
 334                         // create an unfollow slap
 335                         $item = [];
 336                         $item['verb'] = NAMESPACE_OSTATUS . "/unfollow";
 337                         $item['follow'] = $contact["url"];
 338                         $item['body'] = '';
 339                         $item['title'] = '';
 340                         $item['guid'] = '';
 341                         $item['tag'] = '';
 342                         $item['attach'] = '';
 343                         $slap = OStatus::salmon($item, $user);
 344
 345                         if (!empty($contact['notify'])) {
 346                                 Salmon::slapper($user, $contact['notify'], $slap);
 347                         }
 348                 } elseif ($contact['network'] == Protocol::DIASPORA) {
 349                         Diaspora::sendUnshare($user, $contact);
 350                 }
 351         }
 352
 353         /**
 354          * @brief Marks a contact for archival after a communication issue delay
 355          *
 356          * Contact has refused to recognise us as a friend. We will start a countdown.
 357          * If they still don't recognise us in 32 days, the relationship is over,
 358          * and we won't waste any more time trying to communicate with them.
 359          * This provides for the possibility that their database is temporarily messed
 360          * up or some other transient event and that there's a possibility we could recover from it.
 361          *
 362          * @param array $contact contact to mark for archival
 363          * @return null
 364          */
 365         public static function markForArchival(array $contact)
 366         {
 367                 // Contact already archived or "self" contact? => nothing to do
 368                 if ($contact['archive'] || $contact['self']) {
 369                         return;
 370                 }
 371
 372                 if ($contact['term-date'] <= NULL_DATE) {
 373                         DBA::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['id' => $contact['id']]);
 374
 375                         if ($contact['url'] != '') {
 376                                 DBA::update('contact', ['term-date' => DateTimeFormat::utcNow()], ['`nurl` = ? AND `term-date` <= ? AND NOT `self`', normalise_link($contact['url']), NULL_DATE]);
 377                         }
 378                 } else {
 379                         /* @todo
 380                          * We really should send a notification to the owner after 2-3 weeks
 381                          * so they won't be surprised when the contact vanishes and can take
 382                          * remedial action if this was a serious mistake or glitch
 383                          */
 384
 385                         /// @todo Check for contact vitality via probing
 386                         $archival_days = Config::get('system', 'archival_days', 32);
 387
 388                         $expiry = $contact['term-date'] . ' + ' . $archival_days . ' days ';
 389                         if (DateTimeFormat::utcNow() > DateTimeFormat::utc($expiry)) {
 390                                 /* Relationship is really truly dead. archive them rather than
 391                                  * delete, though if the owner tries to unarchive them we'll start
 392                                  * the whole process over again.
 393                                  */
 394                                 DBA::update('contact', ['archive' => 1], ['id' => $contact['id']]);
 395
 396                                 if ($contact['url'] != '') {
 397                                         DBA::update('contact', ['archive' => 1], ['nurl' => normalise_link($contact['url']), 'self' => false]);
 398                                 }
 399                         }
 400                 }
 401         }
 402
 403         /**
 404          * @brief Cancels the archival countdown
 405          *
 406          * @see Contact::markForArchival()
 407          *
 408          * @param array $contact contact to be unmarked for archival
 409          * @return null
 410          */
 411         public static function unmarkForArchival(array $contact)
 412         {
 413                 $condition = ['`id` = ? AND (`term-date` > ? OR `archive`)', $contact['id'], NULL_DATE];
 414                 $exists = DBA::exists('contact', $condition);
 415
 416                 // We don't need to update, we never marked this contact for archival
 417                 if (!$exists) {
 418                         return;
 419                 }
 420
 421                 // It's a miracle. Our dead contact has inexplicably come back to life.
 422                 $fields = ['term-date' => NULL_DATE, 'archive' => false];
 423                 DBA::update('contact', $fields, ['id' => $contact['id']]);
 424
 425                 if (!empty($contact['url'])) {
 426                         DBA::update('contact', $fields, ['nurl' => normalise_link($contact['url'])]);
 427                 }
 428
 429                 if (!empty($contact['batch'])) {
 430                         $condition = ['batch' => $contact['batch'], 'contact-type' => self::ACCOUNT_TYPE_RELAY];
 431                         DBA::update('contact', $fields, $condition);
 432                 }
 433         }
 434
 435         /**
 436          * @brief Get contact data for a given profile link
 437          *
 438          * The function looks at several places (contact table and gcontact table) for the contact
 439          * It caches its result for the same script execution to prevent duplicate calls
 440          *
 441          * @param string $url     The profile link
 442          * @param int    $uid     User id
 443          * @param array  $default If not data was found take this data as default value
 444          *
 445          * @return array Contact data
 446          */
 447         public static function getDetailsByURL($url, $uid = -1, array $default = [])
 448         {
 449                 static $cache = [];
 450
 451                 if ($url == '') {
 452                         return $default;
 453                 }
 454
 455                 if ($uid == -1) {
 456                         $uid = local_user();
 457                 }
 458
 459                 if (isset($cache[$url][$uid])) {
 460                         return $cache[$url][$uid];
 461                 }
 462
 463                 $ssl_url = str_replace('http://', 'https://', $url);
 464
 465                 // Fetch contact data from the contact table for the given user
 466                 $s = DBA::p("SELECT `id`, `id` AS `cid`, 0 AS `gid`, 0 AS `zid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 467                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, `self`
 468                 FROM `contact` WHERE `nurl` = ? AND `uid` = ?", normalise_link($url), $uid);
 469                 $r = DBA::toArray($s);
 470
 471                 // Fetch contact data from the contact table for the given user, checking with the alias
 472                 if (!DBA::isResult($r)) {
 473                         $s = DBA::p("SELECT `id`, `id` AS `cid`, 0 AS `gid`, 0 AS `zid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 474                                 `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, `self`
 475                         FROM `contact` WHERE `alias` IN (?, ?, ?) AND `uid` = ?", normalise_link($url), $url, $ssl_url, $uid);
 476                         $r = DBA::toArray($s);
 477                 }
 478
 479                 // Fetch the data from the contact table with "uid=0" (which is filled automatically)
 480                 if (!DBA::isResult($r)) {
 481                         $s = DBA::p("SELECT `id`, 0 AS `cid`, `id` AS `zid`, 0 AS `gid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 482                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, 0 AS `self`
 483                         FROM `contact` WHERE `nurl` = ? AND `uid` = 0", normalise_link($url));
 484                         $r = DBA::toArray($s);
 485                 }
 486
 487                 // Fetch the data from the contact table with "uid=0" (which is filled automatically) - checked with the alias
 488                 if (!DBA::isResult($r)) {
 489                         $s = DBA::p("SELECT `id`, 0 AS `cid`, `id` AS `zid`, 0 AS `gid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 490                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, 0 AS `self`
 491                         FROM `contact` WHERE `alias` IN (?, ?, ?) AND `uid` = 0", normalise_link($url), $url, $ssl_url);
 492                         $r = DBA::toArray($s);
 493                 }
 494
 495                 // Fetch the data from the gcontact table
 496                 if (!DBA::isResult($r)) {
 497                         $s = DBA::p("SELECT 0 AS `id`, 0 AS `cid`, `id` AS `gid`, 0 AS `zid`, 0 AS `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, '' AS `xmpp`,
 498                         `keywords`, `gender`, `photo`, `photo` AS `thumb`, `photo` AS `micro`, 0 AS `forum`, 0 AS `prv`, `community`, `contact-type`, `birthday`, 0 AS `self`
 499                         FROM `gcontact` WHERE `nurl` = ?", normalise_link($url));
 500                         $r = DBA::toArray($s);
 501                 }
 502
 503                 if (DBA::isResult($r)) {
 504                         // If there is more than one entry we filter out the connector networks
 505                         if (count($r) > 1) {
 506                                 foreach ($r as $id => $result) {
 507                                         if ($result["network"] == Protocol::STATUSNET) {
 508                                                 unset($r[$id]);
 509                                         }
 510                                 }
 511                         }
 512
 513                         $profile = array_shift($r);
 514
 515                         // "bd" always contains the upcoming birthday of a contact.
 516                         // "birthday" might contain the birthday including the year of birth.
 517                         if ($profile["birthday"] > '0001-01-01') {
 518                                 $bd_timestamp = strtotime($profile["birthday"]);
 519                                 $month = date("m", $bd_timestamp);
 520                                 $day = date("d", $bd_timestamp);
 521
 522                                 $current_timestamp = time();
 523                                 $current_year = date("Y", $current_timestamp);
 524                                 $current_month = date("m", $current_timestamp);
 525                                 $current_day = date("d", $current_timestamp);
 526
 527                                 $profile["bd"] = $current_year . "-" . $month . "-" . $day;
 528                                 $current = $current_year . "-" . $current_month . "-" . $current_day;
 529
 530                                 if ($profile["bd"] < $current) {
 531                                         $profile["bd"] = ( ++$current_year) . "-" . $month . "-" . $day;
 532                                 }
 533                         } else {
 534                                 $profile["bd"] = '0001-01-01';
 535                         }
 536                 } else {
 537                         $profile = $default;
 538                 }
 539
 540                 if (empty($profile["photo"]) && isset($default["photo"])) {
 541                         $profile["photo"] = $default["photo"];
 542                 }
 543
 544                 if (empty($profile["name"]) && isset($default["name"])) {
 545                         $profile["name"] = $default["name"];
 546                 }
 547
 548                 if (empty($profile["network"]) && isset($default["network"])) {
 549                         $profile["network"] = $default["network"];
 550                 }
 551
 552                 if (empty($profile["thumb"]) && isset($profile["photo"])) {
 553                         $profile["thumb"] = $profile["photo"];
 554                 }
 555
 556                 if (empty($profile["micro"]) && isset($profile["thumb"])) {
 557                         $profile["micro"] = $profile["thumb"];
 558                 }
 559
 560                 if ((empty($profile["addr"]) || empty($profile["name"])) && (defaults($profile, "gid", 0) != 0)
 561                         && in_array($profile["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS])
 562                 ) {
 563                         Worker::add(PRIORITY_LOW, "UpdateGContact", $profile["gid"]);
 564                 }
 565
 566                 // Show contact details of Diaspora contacts only if connected
 567                 if ((defaults($profile, "cid", 0) == 0) && (defaults($profile, "network", "") == Protocol::DIASPORA)) {
 568                         $profile["location"] = "";
 569                         $profile["about"] = "";
 570                         $profile["gender"] = "";
 571                         $profile["birthday"] = '0001-01-01';
 572                 }
 573
 574                 $cache[$url][$uid] = $profile;
 575
 576                 return $profile;
 577         }
 578
 579         /**
 580          * @brief Get contact data for a given address
 581          *
 582          * The function looks at several places (contact table and gcontact table) for the contact
 583          *
 584          * @param string $addr The profile link
 585          * @param int    $uid  User id
 586          *
 587          * @return array Contact data
 588          */
 589         public static function getDetailsByAddr($addr, $uid = -1)
 590         {
 591                 static $cache = [];
 592
 593                 if ($addr == '') {
 594                         return [];
 595                 }
 596
 597                 if ($uid == -1) {
 598                         $uid = local_user();
 599                 }
 600
 601                 // Fetch contact data from the contact table for the given user
 602                 $r = q("SELECT `id`, `id` AS `cid`, 0 AS `gid`, 0 AS `zid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 603                         `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, `self`
 604                         FROM `contact` WHERE `addr` = '%s' AND `uid` = %d",
 605                         DBA::escape($addr),
 606                         intval($uid)
 607                 );
 608                 // Fetch the data from the contact table with "uid=0" (which is filled automatically)
 609                 if (!DBA::isResult($r)) {
 610                         $r = q("SELECT `id`, 0 AS `cid`, `id` AS `zid`, 0 AS `gid`, `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, `xmpp`,
 611                                 `keywords`, `gender`, `photo`, `thumb`, `micro`, `forum`, `prv`, (`forum` | `prv`) AS `community`, `contact-type`, `bd` AS `birthday`, 0 AS `self`
 612                                 FROM `contact` WHERE `addr` = '%s' AND `uid` = 0",
 613                                 DBA::escape($addr)
 614                         );
 615                 }
 616
 617                 // Fetch the data from the gcontact table
 618                 if (!DBA::isResult($r)) {
 619                         $r = q("SELECT 0 AS `id`, 0 AS `cid`, `id` AS `gid`, 0 AS `zid`, 0 AS `uid`, `url`, `nurl`, `alias`, `network`, `name`, `nick`, `addr`, `location`, `about`, '' AS `xmpp`,
 620                                 `keywords`, `gender`, `photo`, `photo` AS `thumb`, `photo` AS `micro`, `community` AS `forum`, 0 AS `prv`, `community`, `contact-type`, `birthday`, 0 AS `self`
 621                                 FROM `gcontact` WHERE `addr` = '%s'",
 622                                 DBA::escape($addr)
 623                         );
 624                 }
 625
 626                 if (!DBA::isResult($r)) {
 627                         $data = Probe::uri($addr);
 628
 629                         $profile = self::getDetailsByURL($data['url'], $uid);
 630                 } else {
 631                         $profile = $r[0];
 632                 }
 633
 634                 return $profile;
 635         }
 636
 637         /**
 638          * @brief Returns the data array for the photo menu of a given contact
 639          *
 640          * @param array $contact contact
 641          * @param int   $uid     optional, default 0
 642          * @return array
 643          */
 644         public static function photoMenu(array $contact, $uid = 0)
 645         {
 646                 // @todo Unused, to be removed
 647                 $a = get_app();
 648
 649                 $contact_url = '';
 650                 $pm_url = '';
 651                 $status_link = '';
 652                 $photos_link = '';
 653                 $posts_link = '';
 654                 $contact_drop_link = '';
 655                 $poke_link = '';
 656
 657                 if ($uid == 0) {
 658                         $uid = local_user();
 659                 }
 660
 661                 if (empty($contact['uid']) || ($contact['uid'] != $uid)) {
 662                         if ($uid == 0) {
 663                                 $profile_link = self::magicLink($contact['url']);
 664                                 $menu = ['profile' => [L10n::t('View Profile'), $profile_link, true]];
 665
 666                                 return $menu;
 667                         }
 668
 669                         // Look for our own contact if the uid doesn't match and isn't public
 670                         $contact_own = DBA::selectFirst('contact', [], ['nurl' => $contact['nurl'], 'network' => $contact['network'], 'uid' => $uid]);
 671                         if (DBA::isResult($contact_own)) {
 672                                 return self::photoMenu($contact_own, $uid);
 673                         } else {
 674                                 $profile_link = self::magicLink($contact['url']);
 675                                 $connlnk = 'follow/?url=' . $contact['url'];
 676                                 $menu = [
 677                                         'profile' => [L10n::t('View Profile'), $profile_link, true],
 678                                         'follow' => [L10n::t('Connect/Follow'), $connlnk, true]
 679                                 ];
 680
 681                                 return $menu;
 682                         }
 683                 }
 684
 685                 $sparkle = false;
 686                 if (($contact['network'] === Protocol::DFRN) && !$contact['self']) {
 687                         $sparkle = true;
 688                         $profile_link = System::baseUrl() . '/redir/' . $contact['id'];
 689                 } else {
 690                         $profile_link = $contact['url'];
 691                 }
 692
 693                 if ($profile_link === 'mailbox') {
 694                         $profile_link = '';
 695                 }
 696
 697                 if ($sparkle) {
 698                         $status_link = $profile_link . '?url=status';
 699                         $photos_link = $profile_link . '?url=photos';
 700                         $profile_link = $profile_link . '?url=profile';
 701                 }
 702
 703                 if (in_array($contact['network'], [Protocol::DFRN, Protocol::DIASPORA]) && !$contact['self']) {
 704                         $pm_url = System::baseUrl() . '/message/new/' . $contact['id'];
 705                 }
 706
 707                 if (($contact['network'] == Protocol::DFRN) && !$contact['self']) {
 708                         $poke_link = System::baseUrl() . '/poke/?f=&c=' . $contact['id'];
 709                 }
 710
 711                 $contact_url = System::baseUrl() . '/contacts/' . $contact['id'];
 712
 713                 $posts_link = System::baseUrl() . '/contacts/' . $contact['id'] . '/posts';
 714
 715                 if (!$contact['self']) {
 716                         $contact_drop_link = System::baseUrl() . '/contacts/' . $contact['id'] . '/drop?confirm=1';
 717                 }
 718
 719                 /**
 720                  * Menu array:
 721                  * "name" => [ "Label", "link", (bool)Should the link opened in a new tab? ]
 722                  */
 723                 $menu = [
 724                         'status'  => [L10n::t("View Status")  , $status_link      , true],
 725                         'profile' => [L10n::t("View Profile") , $profile_link     , true],
 726                         'photos'  => [L10n::t("View Photos")  , $photos_link      , true],
 727                         'network' => [L10n::t("Network Posts"), $posts_link       , false],
 728                         'edit'    => [L10n::t("View Contact") , $contact_url      , false],
 729                         'drop'    => [L10n::t("Drop Contact") , $contact_drop_link, false],
 730                         'pm'      => [L10n::t("Send PM")      , $pm_url           , false],
 731                         'poke'    => [L10n::t("Poke")         , $poke_link        , false],
 732                 ];
 733
 734                 $args = ['contact' => $contact, 'menu' => &$menu];
 735
 736                 Addon::callHooks('contact_photo_menu', $args);
 737
 738                 $menucondensed = [];
 739
 740                 foreach ($menu as $menuname => $menuitem) {
 741                         if ($menuitem[1] != '') {
 742                                 $menucondensed[$menuname] = $menuitem;
 743                         }
 744                 }
 745
 746                 return $menucondensed;
 747         }
 748
 749         /**
 750          * @brief Returns ungrouped contact count or list for user
 751          *
 752          * Returns either the total number of ungrouped contacts for the given user
 753          * id or a paginated list of ungrouped contacts.
 754          *
 755          * @param int $uid   uid
 756          * @param int $start optional, default 0
 757          * @param int $count optional, default 0
 758          *
 759          * @return array
 760          */
 761         public static function getUngroupedList($uid)
 762         {
 763                 return q("SELECT *
 764                            FROM `contact`
 765                            WHERE `uid` = %d
 766                            AND NOT `self`
 767                            AND NOT `blocked`
 768                            AND NOT `pending`
 769                            AND `id` NOT IN (
 770                                 SELECT DISTINCT(`contact-id`)
 771                                 FROM `group_member`
 772                                 INNER JOIN `group` ON `group`.`id` = `group_member`.`gid`
 773                                 WHERE `group`.`uid` = %d
 774                            )", intval($uid), intval($uid));
 775         }
 776
 777         /**
 778          * @brief Fetch the contact id for a given URL and user
 779          *
 780          * First lookup in the contact table to find a record matching either `url`, `nurl`,
 781          * `addr` or `alias`.
 782          *
 783          * If there's no record and we aren't looking for a public contact, we quit.
 784          * If there's one, we check that it isn't time to update the picture else we
 785          * directly return the found contact id.
 786          *
 787          * Second, we probe the provided $url whether it's http://server.tld/profile or
 788          * nick@server.tld. We quit if we can't get any info back.
 789          *
 790          * Third, we create the contact record if it doesn't exist
 791          *
 792          * Fourth, we update the existing record with the new data (avatar, alias, nick)
 793          * if there's any updates
 794          *
 795          * @param string  $url       Contact URL
 796          * @param integer $uid       The user id for the contact (0 = public contact)
 797          * @param boolean $no_update Don't update the contact
 798          * @param array   $default   Default value for creating the contact when every else fails
 799          *
 800          * @return integer Contact ID
 801          */
 802         public static function getIdForURL($url, $uid = 0, $no_update = false, $default = [])
 803         {
 804                 logger("Get contact data for url " . $url . " and user " . $uid . " - " . System::callstack(), LOGGER_DEBUG);
 805
 806                 $contact_id = 0;
 807
 808                 if ($url == '') {
 809                         return 0;
 810                 }
 811
 812                 /// @todo Verify if we can't use Contact::getDetailsByUrl instead of the following
 813                 // We first try the nurl (http://server.tld/nick), most common case
 814                 $contact = DBA::selectFirst('contact', ['id', 'avatar', 'avatar-date'], ['nurl' => normalise_link($url), 'uid' => $uid]);
 815
 816                 // Then the addr (nick@server.tld)
 817                 if (!DBA::isResult($contact)) {
 818                         $contact = DBA::selectFirst('contact', ['id', 'avatar', 'avatar-date'], ['addr' => $url, 'uid' => $uid]);
 819                 }
 820
 821                 // Then the alias (which could be anything)
 822                 if (!DBA::isResult($contact)) {
 823                         // The link could be provided as http although we stored it as https
 824                         $ssl_url = str_replace('http://', 'https://', $url);
 825                         $condition = ['`alias` IN (?, ?, ?) AND `uid` = ?', $url, normalise_link($url), $ssl_url, $uid];
 826                         $contact = DBA::selectFirst('contact', ['id', 'avatar', 'avatar-date'], $condition);
 827                 }
 828
 829                 if (DBA::isResult($contact)) {
 830                         $contact_id = $contact["id"];
 831
 832                         // Update the contact every 7 days
 833                         $update_contact = ($contact['avatar-date'] < DateTimeFormat::utc('now -7 days'));
 834
 835                         // We force the update if the avatar is empty
 836                         if (!x($contact, 'avatar')) {
 837                                 $update_contact = true;
 838                         }
 839
 840                         if (!$update_contact || $no_update) {
 841                                 return $contact_id;
 842                         }
 843                 } elseif ($uid != 0) {
 844                         // Non-existing user-specific contact, exiting
 845                         return 0;
 846                 }
 847
 848                 // When we don't want to update, we look if some of our users already know this contact
 849                 if ($no_update) {
 850                         $fields = ['url', 'addr', 'alias', 'notify', 'poll', 'name', 'nick',
 851                                 'photo', 'keywords', 'location', 'about', 'network',
 852                                 'priority', 'batch', 'request', 'confirm', 'poco'];
 853                         $data = DBA::selectFirst('contact', $fields, ['nurl' => normalise_link($url)]);
 854
 855                         if (DBA::isResult($data)) {
 856                                 // For security reasons we don't fetch key data from our users
 857                                 $data["pubkey"] = '';
 858                         }
 859                 } else {
 860                         $data = [];
 861                 }
 862
 863                 if (empty($data)) {
 864                         $data = Probe::uri($url, "", $uid);
 865                 }
 866
 867                 // Last try in gcontact for unsupported networks
 868                 if (!in_array($data["network"], [Protocol::DFRN, Protocol::OSTATUS, Protocol::DIASPORA, Protocol::PUMPIO, Protocol::MAIL, Protocol::FEED])) {
 869                         if ($uid != 0) {
 870                                 return 0;
 871                         }
 872
 873                         // Get data from the gcontact table
 874                         $fields = ['name', 'nick', 'url', 'photo', 'addr', 'alias', 'network'];
 875                         $contact = DBA::selectFirst('gcontact', $fields, ['nurl' => normalise_link($url)]);
 876                         if (!DBA::isResult($contact)) {
 877                                 $contact = DBA::selectFirst('contact', $fields, ['nurl' => normalise_link($url)]);
 878                         }
 879
 880                         if (!DBA::isResult($contact)) {
 881                                 $fields = ['url', 'addr', 'alias', 'notify', 'poll', 'name', 'nick',
 882                                         'photo', 'keywords', 'location', 'about', 'network',
 883                                         'priority', 'batch', 'request', 'confirm', 'poco'];
 884                                 $contact = DBA::selectFirst('contact', $fields, ['addr' => $url]);
 885                         }
 886
 887                         if (!DBA::isResult($contact)) {
 888                                 // The link could be provided as http although we stored it as https
 889                                 $ssl_url = str_replace('http://', 'https://', $url);
 890                                 $condition = ['alias' => [$url, normalise_link($url), $ssl_url]];
 891                                 $contact = DBA::selectFirst('contact', $fields, $condition);
 892                         }
 893
 894                         if (!DBA::isResult($contact)) {
 895                                 $fields = ['url', 'addr', 'alias', 'notify', 'poll', 'name', 'nick',
 896                                         'photo', 'network', 'priority', 'batch', 'request', 'confirm'];
 897                                 $condition = ['url' => [$url, normalise_link($url), $ssl_url]];
 898                                 $contact = DBA::selectFirst('fcontact', $fields, $condition);
 899                         }
 900
 901                         if (!empty($default)) {
 902                                 $contact = $default;
 903                         }
 904
 905                         if (!DBA::isResult($contact)) {
 906                                 return 0;
 907                         } else {
 908                                 $data = array_merge($data, $contact);
 909                         }
 910                 }
 911
 912                 if (!$contact_id && ($data["alias"] != '') && ($data["alias"] != $url)) {
 913                         $contact_id = self::getIdForURL($data["alias"], $uid, true);
 914                 }
 915
 916                 $url = $data["url"];
 917                 if (!$contact_id) {
 918                         DBA::insert('contact', [
 919                                 'uid'       => $uid,
 920                                 'created'   => DateTimeFormat::utcNow(),
 921                                 'url'       => $data["url"],
 922                                 'nurl'      => normalise_link($data["url"]),
 923                                 'addr'      => $data["addr"],
 924                                 'alias'     => $data["alias"],
 925                                 'notify'    => $data["notify"],
 926                                 'poll'      => $data["poll"],
 927                                 'name'      => $data["name"],
 928                                 'nick'      => $data["nick"],
 929                                 'photo'     => $data["photo"],
 930                                 'keywords'  => $data["keywords"],
 931                                 'location'  => $data["location"],
 932                                 'about'     => $data["about"],
 933                                 'network'   => $data["network"],
 934                                 'pubkey'    => $data["pubkey"],
 935                                 'rel'       => self::SHARING,
 936                                 'priority'  => $data["priority"],
 937                                 'batch'     => $data["batch"],
 938                                 'request'   => $data["request"],
 939                                 'confirm'   => $data["confirm"],
 940                                 'poco'      => $data["poco"],
 941                                 'name-date' => DateTimeFormat::utcNow(),
 942                                 'uri-date'  => DateTimeFormat::utcNow(),
 943                                 'avatar-date' => DateTimeFormat::utcNow(),
 944                                 'writable'  => 1,
 945                                 'blocked'   => 0,
 946                                 'readonly'  => 0,
 947                                 'pending'   => 0]
 948                         );
 949
 950                         $s = DBA::select('contact', ['id'], ['nurl' => normalise_link($data["url"]), 'uid' => $uid], ['order' => ['id'], 'limit' => 2]);
 951                         $contacts = DBA::toArray($s);
 952                         if (!DBA::isResult($contacts)) {
 953                                 return 0;
 954                         }
 955
 956                         $contact_id = $contacts[0]["id"];
 957
 958                         // Update the newly created contact from data in the gcontact table
 959                         $gcontact = DBA::selectFirst('gcontact', ['location', 'about', 'keywords', 'gender'], ['nurl' => normalise_link($data["url"])]);
 960                         if (DBA::isResult($gcontact)) {
 961                                 // Only use the information when the probing hadn't fetched these values
 962                                 if ($data['keywords'] != '') {
 963                                         unset($gcontact['keywords']);
 964                                 }
 965                                 if ($data['location'] != '') {
 966                                         unset($gcontact['location']);
 967                                 }
 968                                 if ($data['about'] != '') {
 969                                         unset($gcontact['about']);
 970                                 }
 971                                 DBA::update('contact', $gcontact, ['id' => $contact_id]);
 972                         }
 973
 974                         if (count($contacts) > 1 && $uid == 0 && $contact_id != 0 && $data["url"] != "") {
 975                                 DBA::delete('contact', ["`nurl` = ? AND `uid` = 0 AND `id` != ? AND NOT `self`",
 976                                         normalise_link($data["url"]), $contact_id]);
 977                         }
 978                 }
 979
 980                 self::updateAvatar($data["photo"], $uid, $contact_id);
 981
 982                 $fields = ['url', 'nurl', 'addr', 'alias', 'name', 'nick', 'keywords', 'location', 'about', 'avatar-date', 'pubkey'];
 983                 $contact = DBA::selectFirst('contact', $fields, ['id' => $contact_id]);
 984
 985                 // This condition should always be true
 986                 if (!DBA::isResult($contact)) {
 987                         return $contact_id;
 988                 }
 989
 990                 $updated = ['addr' => $data['addr'],
 991                         'alias' => $data['alias'],
 992                         'url' => $data['url'],
 993                         'nurl' => normalise_link($data['url']),
 994                         'name' => $data['name'],
 995                         'nick' => $data['nick']];
 996
 997                 if ($data['keywords'] != '') {
 998                         $updated['keywords'] = $data['keywords'];
 999                 }
1000                 if ($data['location'] != '') {
1001                         $updated['location'] = $data['location'];
1002                 }
1003
1004                 // Update the technical stuff as well - if filled
1005                 if ($data['notify'] != '') {
1006                         $updated['notify'] = $data['notify'];
1007                 }
1008                 if ($data['poll'] != '') {
1009                         $updated['poll'] = $data['poll'];
1010                 }
1011                 if ($data['batch'] != '') {
1012                         $updated['batch'] = $data['batch'];
1013                 }
1014                 if ($data['request'] != '') {
1015                         $updated['request'] = $data['request'];
1016                 }
1017                 if ($data['confirm'] != '') {
1018                         $updated['confirm'] = $data['confirm'];
1019                 }
1020                 if ($data['poco'] != '') {
1021                         $updated['poco'] = $data['poco'];
1022                 }
1023
1024                 // Only fill the pubkey if it had been empty before. We have to prevent identity theft.
1025                 if (empty($contact['pubkey'])) {
1026                         $updated['pubkey'] = $data['pubkey'];
1027                 }
1028
1029                 if (($data["addr"] != $contact["addr"]) || ($data["alias"] != $contact["alias"])) {
1030                         $updated['uri-date'] = DateTimeFormat::utcNow();
1031                 }
1032                 if (($data["name"] != $contact["name"]) || ($data["nick"] != $contact["nick"])) {
1033                         $updated['name-date'] = DateTimeFormat::utcNow();
1034                 }
1035
1036                 $updated['avatar-date'] = DateTimeFormat::utcNow();
1037
1038                 DBA::update('contact', $updated, ['id' => $contact_id], $contact);
1039
1040                 return $contact_id;
1041         }
1042
1043         /**
1044          * @brief Checks if the contact is blocked
1045          *
1046          * @param int $cid contact id
1047          *
1048          * @return boolean Is the contact blocked?
1049          */
1050         public static function isBlocked($cid)
1051         {
1052                 if ($cid == 0) {
1053                         return false;
1054                 }
1055
1056                 $blocked = DBA::selectFirst('contact', ['blocked'], ['id' => $cid]);
1057                 if (!DBA::isResult($blocked)) {
1058                         return false;
1059                 }
1060                 return (bool) $blocked['blocked'];
1061         }
1062
1063         /**
1064          * @brief Checks if the contact is hidden
1065          *
1066          * @param int $cid contact id
1067          *
1068          * @return boolean Is the contact hidden?
1069          */
1070         public static function isHidden($cid)
1071         {
1072                 if ($cid == 0) {
1073                         return false;
1074                 }
1075
1076                 $hidden = DBA::selectFirst('contact', ['hidden'], ['id' => $cid]);
1077                 if (!DBA::isResult($hidden)) {
1078                         return false;
1079                 }
1080                 return (bool) $hidden['hidden'];
1081         }
1082
1083         /**
1084          * @brief Returns posts from a given contact url
1085          *
1086          * @param string $contact_url Contact URL
1087          *
1088          * @return string posts in HTML
1089          */
1090         public static function getPostsFromUrl($contact_url)
1091         {
1092                 $a = self::getApp();
1093
1094                 require_once 'include/conversation.php';
1095
1096                 // There are no posts with "uid = 0" with connector networks
1097                 // This speeds up the query a lot
1098                 $r = q("SELECT `network`, `id` AS `author-id`, `contact-type` FROM `contact`
1099                         WHERE `contact`.`nurl` = '%s' AND `contact`.`uid` = 0",
1100                         DBA::escape(normalise_link($contact_url))
1101                 );
1102
1103                 if (!DBA::isResult($r)) {
1104                         return '';
1105                 }
1106
1107                 if (in_array($r[0]["network"], [Protocol::DFRN, Protocol::DIASPORA, Protocol::OSTATUS, ""])) {
1108                         $sql = "(`item`.`uid` = 0 OR (`item`.`uid` = ? AND NOT `item`.`global`))";
1109                 } else {
1110                         $sql = "`item`.`uid` = ?";
1111                 }
1112
1113                 $author_id = intval($r[0]["author-id"]);
1114
1115                 $contact = ($r[0]["contact-type"] == self::ACCOUNT_TYPE_COMMUNITY ? 'owner-id' : 'author-id');
1116
1117                 $condition = ["`$contact` = ? AND `gravity` IN (?, ?) AND " . $sql,
1118                         $author_id, GRAVITY_PARENT, GRAVITY_COMMENT, local_user()];
1119                 $params = ['order' => ['created' => true],
1120                         'limit' => [$a->pager['start'], $a->pager['itemspage']]];
1121                 $r = Item::selectForUser(local_user(), [], $condition, $params);
1122
1123                 $items = Item::inArray($r);
1124
1125                 $o = conversation($a, $items, 'contact-posts', false);
1126
1127                 $o .= alt_pager($a, count($items));
1128
1129                 return $o;
1130         }
1131
1132         /**
1133          * @brief Returns the account type name
1134          *
1135          * The function can be called with either the user or the contact array
1136          *
1137          * @param array $contact contact or user array
1138          * @return string
1139          */
1140         public static function getAccountType(array $contact)
1141         {
1142                 // There are several fields that indicate that the contact or user is a forum
1143                 // "page-flags" is a field in the user table,
1144                 // "forum" and "prv" are used in the contact table. They stand for self::PAGE_COMMUNITY and self::PAGE_PRVGROUP.
1145                 // "community" is used in the gcontact table and is true if the contact is self::PAGE_COMMUNITY or self::PAGE_PRVGROUP.
1146                 if ((isset($contact['page-flags']) && (intval($contact['page-flags']) == self::PAGE_COMMUNITY))
1147                         || (isset($contact['page-flags']) && (intval($contact['page-flags']) == self::PAGE_PRVGROUP))
1148                         || (isset($contact['forum']) && intval($contact['forum']))
1149                         || (isset($contact['prv']) && intval($contact['prv']))
1150                         || (isset($contact['community']) && intval($contact['community']))
1151                 ) {
1152                         $type = self::ACCOUNT_TYPE_COMMUNITY;
1153                 } else {
1154                         $type = self::ACCOUNT_TYPE_PERSON;
1155                 }
1156
1157                 // The "contact-type" (contact table) and "account-type" (user table) are more general then the chaos from above.
1158                 if (isset($contact["contact-type"])) {
1159                         $type = $contact["contact-type"];
1160                 }
1161
1162                 if (isset($contact["account-type"])) {
1163                         $type = $contact["account-type"];
1164                 }
1165
1166                 switch ($type) {
1167                         case self::ACCOUNT_TYPE_ORGANISATION:
1168                                 $account_type = L10n::t("Organisation");
1169                                 break;
1170
1171                         case self::ACCOUNT_TYPE_NEWS:
1172                                 $account_type = L10n::t('News');
1173                                 break;
1174
1175                         case self::ACCOUNT_TYPE_COMMUNITY:
1176                                 $account_type = L10n::t("Forum");
1177                                 break;
1178
1179                         default:
1180                                 $account_type = "";
1181                                 break;
1182                 }
1183
1184                 return $account_type;
1185         }
1186
1187         /**
1188          * @brief Blocks a contact
1189          *
1190          * @param int $uid
1191          * @return bool
1192          */
1193         public static function block($uid)
1194         {
1195                 $return = DBA::update('contact', ['blocked' => true], ['id' => $uid]);
1196
1197                 return $return;
1198         }
1199
1200         /**
1201          * @brief Unblocks a contact
1202          *
1203          * @param int $uid
1204          * @return bool
1205          */
1206         public static function unblock($uid)
1207         {
1208                 $return = DBA::update('contact', ['blocked' => false], ['id' => $uid]);
1209
1210                 return $return;
1211         }
1212
1213         /**
1214          * @brief Updates the avatar links in a contact only if needed
1215          *
1216          * @param string $avatar Link to avatar picture
1217          * @param int    $uid    User id of contact owner
1218          * @param int    $cid    Contact id
1219          * @param bool   $force  force picture update
1220          *
1221          * @return array Returns array of the different avatar sizes
1222          */
1223         public static function updateAvatar($avatar, $uid, $cid, $force = false)
1224         {
1225                 $contact = DBA::selectFirst('contact', ['avatar', 'photo', 'thumb', 'micro', 'nurl'], ['id' => $cid]);
1226                 if (!DBA::isResult($contact)) {
1227                         return false;
1228                 } else {
1229                         $data = [$contact["photo"], $contact["thumb"], $contact["micro"]];
1230                 }
1231
1232                 if (($contact["avatar"] != $avatar) || $force) {
1233                         $photos = Photo::importProfilePhoto($avatar, $uid, $cid, true);
1234
1235                         if ($photos) {
1236                                 DBA::update(
1237                                         'contact',
1238                                         ['avatar' => $avatar, 'photo' => $photos[0], 'thumb' => $photos[1], 'micro' => $photos[2], 'avatar-date' => DateTimeFormat::utcNow()],
1239                                         ['id' => $cid]
1240                                 );
1241
1242                                 // Update the public contact (contact id = 0)
1243                                 if ($uid != 0) {
1244                                         $pcontact = DBA::selectFirst('contact', ['id'], ['nurl' => $contact['nurl'], 'uid' => 0]);
1245                                         if (DBA::isResult($pcontact)) {
1246                                                 self::updateAvatar($avatar, 0, $pcontact['id'], $force);
1247                                         }
1248                                 }
1249
1250                                 return $photos;
1251                         }
1252                 }
1253
1254                 return $data;
1255         }
1256
1257         /**
1258          * @param integer $id contact id
1259          * @return boolean
1260          */
1261         public static function updateFromProbe($id)
1262         {
1263                 /*
1264                   Warning: Never ever fetch the public key via Probe::uri and write it into the contacts.
1265                   This will reliably kill your communication with Friendica contacts.
1266                  */
1267
1268                 $fields = ['url', 'nurl', 'addr', 'alias', 'batch', 'notify', 'poll', 'poco', 'network'];
1269                 $contact = DBA::selectFirst('contact', $fields, ['id' => $id]);
1270                 if (!DBA::isResult($contact)) {
1271                         return false;
1272                 }
1273
1274                 $ret = Probe::uri($contact["url"]);
1275
1276                 // If Probe::uri fails the network code will be different
1277                 if ($ret["network"] != $contact["network"]) {
1278                         return false;
1279                 }
1280
1281                 $update = false;
1282
1283                 // make sure to not overwrite existing values with blank entries
1284                 foreach ($ret as $key => $val) {
1285                         if (isset($contact[$key]) && ($contact[$key] != "") && ($val == "")) {
1286                                 $ret[$key] = $contact[$key];
1287                         }
1288
1289                         if (isset($contact[$key]) && ($ret[$key] != $contact[$key])) {
1290                                 $update = true;
1291                         }
1292                 }
1293
1294                 if (!$update) {
1295                         return true;
1296                 }
1297
1298                 DBA::update(
1299                         'contact', [
1300                                 'url'    => $ret['url'],
1301                                 'nurl'   => normalise_link($ret['url']),
1302                                 'addr'   => $ret['addr'],
1303                                 'alias'  => $ret['alias'],
1304                                 'batch'  => $ret['batch'],
1305                                 'notify' => $ret['notify'],
1306                                 'poll'   => $ret['poll'],
1307                                 'poco'   => $ret['poco']
1308                         ],
1309                         ['id' => $id]
1310                 );
1311
1312                 // Update the corresponding gcontact entry
1313                 PortableContact::lastUpdated($ret["url"]);
1314
1315                 return true;
1316         }
1317
1318         /**
1319          * Takes a $uid and a url/handle and adds a new contact
1320          * Currently if the contact is DFRN, interactive needs to be true, to redirect to the
1321          * dfrn_request page.
1322          *
1323          * Otherwise this can be used to bulk add StatusNet contacts, Twitter contacts, etc.
1324          *
1325          * Returns an array
1326          * $return['success'] boolean true if successful
1327          * $return['message'] error text if success is false.
1328          *
1329          * @brief Takes a $uid and a url/handle and adds a new contact
1330          * @param int    $uid
1331          * @param string $url
1332          * @param bool   $interactive
1333          * @param string $network
1334          * @return boolean|string
1335          */
1336         public static function createFromProbe($uid, $url, $interactive = false, $network = '')
1337         {
1338                 $result = ['cid' => -1, 'success' => false, 'message' => ''];
1339
1340                 $a = get_app();
1341
1342                 // remove ajax junk, e.g. Twitter
1343                 $url = str_replace('/#!/', '/', $url);
1344
1345                 if (!Network::isUrlAllowed($url)) {
1346                         $result['message'] = L10n::t('Disallowed profile URL.');
1347                         return $result;
1348                 }
1349
1350                 if (Network::isUrlBlocked($url)) {
1351                         $result['message'] = L10n::t('Blocked domain');
1352                         return $result;
1353                 }
1354
1355                 if (!$url) {
1356                         $result['message'] = L10n::t('Connect URL missing.');
1357                         return $result;
1358                 }
1359
1360                 $arr = ['url' => $url, 'contact' => []];
1361
1362                 Addon::callHooks('follow', $arr);
1363
1364                 if (empty($arr)) {
1365                         $result['message'] = L10n::t('The contact could not be added. Please check the relevant network credentials in your Settings -> Social Networks page.');
1366                         return $result;
1367                 }
1368
1369                 if (x($arr['contact'], 'name')) {
1370                         $ret = $arr['contact'];
1371                 } else {
1372                         $ret = Probe::uri($url, $network, $uid, false);
1373                 }
1374
1375                 if (($network != '') && ($ret['network'] != $network)) {
1376                         logger('Expected network ' . $network . ' does not match actual network ' . $ret['network']);
1377                         return $result;
1378                 }
1379
1380                 // check if we already have a contact
1381                 // the poll url is more reliable than the profile url, as we may have
1382                 // indirect links or webfinger links
1383
1384                 $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` IN ('%s', '%s') AND `network` = '%s' AND NOT `pending` LIMIT 1",
1385                         intval($uid),
1386                         DBA::escape($ret['poll']),
1387                         DBA::escape(normalise_link($ret['poll'])),
1388                         DBA::escape($ret['network'])
1389                 );
1390
1391                 if (!DBA::isResult($r)) {
1392                         $r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `nurl` = '%s' AND `network` = '%s' AND NOT `pending` LIMIT 1",
1393                                 intval($uid),
1394                                 DBA::escape(normalise_link($url)),
1395                                 DBA::escape($ret['network'])
1396                         );
1397                 }
1398
1399                 if (($ret['network'] === Protocol::DFRN) && !DBA::isResult($r)) {
1400                         if ($interactive) {
1401                                 if (strlen($a->urlpath)) {
1402                                         $myaddr = bin2hex(System::baseUrl() . '/profile/' . $a->user['nickname']);
1403                                 } else {
1404                                         $myaddr = bin2hex($a->user['nickname'] . '@' . $a->get_hostname());
1405                                 }
1406
1407                                 goaway($ret['request'] . "&addr=$myaddr");
1408
1409                                 // NOTREACHED
1410                         }
1411                 } elseif (Config::get('system', 'dfrn_only') && ($ret['network'] != Protocol::DFRN)) {
1412                         $result['message'] = L10n::t('This site is not configured to allow communications with other networks.') . EOL;
1413                         $result['message'] != L10n::t('No compatible communication protocols or feeds were discovered.') . EOL;
1414                         return $result;
1415                 }
1416
1417                 // This extra param just confuses things, remove it
1418                 if ($ret['network'] === Protocol::DIASPORA) {
1419                         $ret['url'] = str_replace('?absolute=true', '', $ret['url']);
1420                 }
1421
1422                 // do we have enough information?
1423
1424                 if (!((x($ret, 'name')) && (x($ret, 'poll')) && ((x($ret, 'url')) || (x($ret, 'addr'))))) {
1425                         $result['message'] .= L10n::t('The profile address specified does not provide adequate information.') . EOL;
1426                         if (!x($ret, 'poll')) {
1427                                 $result['message'] .= L10n::t('No compatible communication protocols or feeds were discovered.') . EOL;
1428                         }
1429                         if (!x($ret, 'name')) {
1430                                 $result['message'] .= L10n::t('An author or name was not found.') . EOL;
1431                         }
1432                         if (!x($ret, 'url')) {
1433                                 $result['message'] .= L10n::t('No browser URL could be matched to this address.') . EOL;
1434                         }
1435                         if (strpos($url, '@') !== false) {
1436                                 $result['message'] .= L10n::t('Unable to match @-style Identity Address with a known protocol or email contact.') . EOL;
1437                                 $result['message'] .= L10n::t('Use mailto: in front of address to force email check.') . EOL;
1438                         }
1439                         return $result;
1440                 }
1441
1442                 if ($ret['network'] === Protocol::OSTATUS && Config::get('system', 'ostatus_disabled')) {
1443                         $result['message'] .= L10n::t('The profile address specified belongs to a network which has been disabled on this site.') . EOL;
1444                         $ret['notify'] = '';
1445                 }
1446
1447                 if (!$ret['notify']) {
1448                         $result['message'] .= L10n::t('Limited profile. This person will be unable to receive direct/personal notifications from you.') . EOL;
1449                 }
1450
1451                 $writeable = ((($ret['network'] === Protocol::OSTATUS) && ($ret['notify'])) ? 1 : 0);
1452
1453                 $subhub = (($ret['network'] === Protocol::OSTATUS) ? true : false);
1454
1455                 $hidden = (($ret['network'] === Protocol::MAIL) ? 1 : 0);
1456
1457                 if (in_array($ret['network'], [Protocol::MAIL, Protocol::DIASPORA])) {
1458                         $writeable = 1;
1459                 }
1460
1461                 if (DBA::isResult($r)) {
1462                         // update contact
1463                         $new_relation = (($r[0]['rel'] == self::FOLLOWER) ? self::FRIEND : self::SHARING);
1464
1465                         $fields = ['rel' => $new_relation, 'subhub' => $subhub, 'readonly' => false];
1466                         DBA::update('contact', $fields, ['id' => $r[0]['id']]);
1467                 } else {
1468                         $new_relation = ((in_array($ret['network'], [Protocol::MAIL])) ? self::FRIEND : self::SHARING);
1469
1470                         // create contact record
1471                         DBA::insert('contact', [
1472                                 'uid'     => $uid,
1473                                 'created' => DateTimeFormat::utcNow(),
1474                                 'url'     => $ret['url'],
1475                                 'nurl'    => normalise_link($ret['url']),
1476                                 'addr'    => $ret['addr'],
1477                                 'alias'   => $ret['alias'],
1478                                 'batch'   => $ret['batch'],
1479                                 'notify'  => $ret['notify'],
1480                                 'poll'    => $ret['poll'],
1481                                 'poco'    => $ret['poco'],
1482                                 'name'    => $ret['name'],
1483                                 'nick'    => $ret['nick'],
1484                                 'network' => $ret['network'],
1485                                 'pubkey'  => $ret['pubkey'],
1486                                 'rel'     => $new_relation,
1487                                 'priority'=> $ret['priority'],
1488                                 'writable'=> $writeable,
1489                                 'hidden'  => $hidden,
1490                                 'blocked' => 0,
1491                                 'readonly'=> 0,
1492                                 'pending' => 0,
1493                                 'subhub'  => $subhub
1494                         ]);
1495                 }
1496
1497                 $contact = DBA::selectFirst('contact', [], ['url' => $ret['url'], 'network' => $ret['network'], 'uid' => $uid]);
1498                 if (!DBA::isResult($contact)) {
1499                         $result['message'] .= L10n::t('Unable to retrieve contact information.') . EOL;
1500                         return $result;
1501                 }
1502
1503                 $contact_id = $contact['id'];
1504                 $result['cid'] = $contact_id;
1505
1506                 Group::addMember(User::getDefaultGroup($uid, $contact["network"]), $contact_id);
1507
1508                 // Update the avatar
1509                 self::updateAvatar($ret['photo'], $uid, $contact_id);
1510
1511                 // pull feed and consume it, which should subscribe to the hub.
1512
1513                 Worker::add(PRIORITY_HIGH, "OnePoll", $contact_id, "force");
1514
1515                 $r = q("SELECT `contact`.*, `user`.* FROM `contact` INNER JOIN `user` ON `contact`.`uid` = `user`.`uid`
1516                         WHERE `user`.`uid` = %d AND `contact`.`self` LIMIT 1",
1517                         intval($uid)
1518                 );
1519
1520                 if (DBA::isResult($r)) {
1521                         if (in_array($contact['network'], [Protocol::OSTATUS, Protocol::DFRN])) {
1522                                 // create a follow slap
1523                                 $item = [];
1524                                 $item['verb'] = ACTIVITY_FOLLOW;
1525                                 $item['follow'] = $contact["url"];
1526                                 $item['body'] = '';
1527                                 $item['title'] = '';
1528                                 $item['guid'] = '';
1529                                 $item['tag'] = '';
1530                                 $item['attach'] = '';
1531                                 $slap = OStatus::salmon($item, $r[0]);
1532                                 if (!empty($contact['notify'])) {
1533                                         Salmon::slapper($r[0], $contact['notify'], $slap);
1534                                 }
1535                         } elseif ($contact['network'] == Protocol::DIASPORA) {
1536                                 $ret = Diaspora::sendShare($a->user, $contact);
1537                                 logger('share returns: ' . $ret);
1538                         }
1539                 }
1540
1541                 $result['success'] = true;
1542                 return $result;
1543         }
1544
1545         public static function updateSslPolicy($contact, $new_policy)
1546         {
1547                 $ssl_changed = false;
1548                 if ((intval($new_policy) == SSL_POLICY_SELFSIGN || $new_policy === 'self') && strstr($contact['url'], 'https:')) {
1549                         $ssl_changed = true;
1550                         $contact['url']     =   str_replace('https:', 'http:', $contact['url']);
1551                         $contact['request'] =   str_replace('https:', 'http:', $contact['request']);
1552                         $contact['notify']  =   str_replace('https:', 'http:', $contact['notify']);
1553                         $contact['poll']    =   str_replace('https:', 'http:', $contact['poll']);
1554                         $contact['confirm'] =   str_replace('https:', 'http:', $contact['confirm']);
1555                         $contact['poco']    =   str_replace('https:', 'http:', $contact['poco']);
1556                 }
1557
1558                 if ((intval($new_policy) == SSL_POLICY_FULL || $new_policy === 'full') && strstr($contact['url'], 'http:')) {
1559                         $ssl_changed = true;
1560                         $contact['url']     =   str_replace('http:', 'https:', $contact['url']);
1561                         $contact['request'] =   str_replace('http:', 'https:', $contact['request']);
1562                         $contact['notify']  =   str_replace('http:', 'https:', $contact['notify']);
1563                         $contact['poll']    =   str_replace('http:', 'https:', $contact['poll']);
1564                         $contact['confirm'] =   str_replace('http:', 'https:', $contact['confirm']);
1565                         $contact['poco']    =   str_replace('http:', 'https:', $contact['poco']);
1566                 }
1567
1568                 if ($ssl_changed) {
1569                         $fields = ['url' => $contact['url'], 'request' => $contact['request'],
1570                                         'notify' => $contact['notify'], 'poll' => $contact['poll'],
1571                                         'confirm' => $contact['confirm'], 'poco' => $contact['poco']];
1572                         DBA::update('contact', $fields, ['id' => $contact['id']]);
1573                 }
1574
1575                 return $contact;
1576         }
1577
1578         public static function addRelationship($importer, $contact, $datarray, $item, $sharing = false) {
1579                 // Should always be set
1580                 if (empty($datarray['author-id'])) {
1581                         return;
1582                 }
1583
1584                 $fields = ['url', 'name', 'nick', 'photo', 'network'];
1585                 $pub_contact = DBA::selectFirst('contact', $fields, ['id' => $datarray['author-id']]);
1586                 if (!DBA::isResult($pub_contact)) {
1587                         // Should never happen
1588                         return;
1589                 }
1590
1591                 $url = $pub_contact['url'];
1592                 $name = $pub_contact['name'];
1593                 $photo = $pub_contact['photo'];
1594                 $nick = $pub_contact['nick'];
1595                 $network = $pub_contact['network'];
1596
1597                 if (is_array($contact)) {
1598                         if (($contact['rel'] == self::SHARING)
1599                                 || ($sharing && $contact['rel'] == self::FOLLOWER)) {
1600                                 DBA::update('contact', ['rel' => self::FRIEND, 'writable' => true],
1601                                                 ['id' => $contact['id'], 'uid' => $importer['uid']]);
1602                         }
1603                         // send email notification to owner?
1604                 } else {
1605                         if (DBA::exists('contact', ['nurl' => normalise_link($url), 'uid' => $importer['uid'], 'pending' => true])) {
1606                                 logger('ignoring duplicated connection request from pending contact ' . $url);
1607                                 return;
1608                         }
1609
1610                         // create contact record
1611                         q("INSERT INTO `contact` (`uid`, `created`, `url`, `nurl`, `name`, `nick`, `photo`, `network`, `rel`,
1612                                 `blocked`, `readonly`, `pending`, `writable`)
1613                                 VALUES (%d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 1, 1)",
1614                                 intval($importer['uid']),
1615                                 DBA::escape(DateTimeFormat::utcNow()),
1616                                 DBA::escape($url),
1617                                 DBA::escape(normalise_link($url)),
1618                                 DBA::escape($name),
1619                                 DBA::escape($nick),
1620                                 DBA::escape($photo),
1621                                 DBA::escape($network),
1622                                 intval(self::FOLLOWER)
1623                         );
1624
1625                         $contact_record = [
1626                                 'id' => DBA::lastInsertId(),
1627                                 'network' => $network,
1628                                 'name' => $name,
1629                                 'url' => $url,
1630                                 'photo' => $photo
1631                         ];
1632
1633                         Contact::updateAvatar($photo, $importer["uid"], $contact_record["id"], true);
1634
1635                         /// @TODO Encapsulate this into a function/method
1636                         $fields = ['uid', 'username', 'email', 'page-flags', 'notify-flags', 'language'];
1637                         $user = DBA::selectFirst('user', $fields, ['uid' => $importer['uid']]);
1638                         if (DBA::isResult($user) && !in_array($user['page-flags'], [self::PAGE_SOAPBOX, self::PAGE_FREELOVE, self::PAGE_COMMUNITY])) {
1639                                 // create notification
1640                                 $hash = random_string();
1641
1642                                 if (is_array($contact_record)) {
1643                                         DBA::insert('intro', ['uid' => $importer['uid'], 'contact-id' => $contact_record['id'],
1644                                                                 'blocked' => false, 'knowyou' => false,
1645                                                                 'hash' => $hash, 'datetime' => DateTimeFormat::utcNow()]);
1646                                 }
1647
1648                                 Group::addMember(User::getDefaultGroup($importer['uid'], $contact_record["network"]), $contact_record['id']);
1649
1650                                 if (($user['notify-flags'] & NOTIFY_INTRO) &&
1651                                         in_array($user['page-flags'], [self::PAGE_NORMAL])) {
1652
1653                                         notification([
1654                                                 'type'         => NOTIFY_INTRO,
1655                                                 'notify_flags' => $user['notify-flags'],
1656                                                 'language'     => $user['language'],
1657                                                 'to_name'      => $user['username'],
1658                                                 'to_email'     => $user['email'],
1659                                                 'uid'          => $user['uid'],
1660                                                 'link'         => System::baseUrl() . '/notifications/intro',
1661                                                 'source_name'  => ((strlen(stripslashes($contact_record['name']))) ? stripslashes($contact_record['name']) : L10n::t('[Name Withheld]')),
1662                                                 'source_link'  => $contact_record['url'],
1663                                                 'source_photo' => $contact_record['photo'],
1664                                                 'verb'         => ($sharing ? ACTIVITY_FRIEND : ACTIVITY_FOLLOW),
1665                                                 'otype'        => 'intro'
1666                                         ]);
1667
1668                                 }
1669                         } elseif (DBA::isResult($user) && in_array($user['page-flags'], [self::PAGE_SOAPBOX, self::PAGE_FREELOVE, self::PAGE_COMMUNITY])) {
1670                                 q("UPDATE `contact` SET `pending` = 0 WHERE `uid` = %d AND `url` = '%s' AND `pending` LIMIT 1",
1671                                                 intval($importer['uid']),
1672                                                 DBA::escape($url)
1673                                 );
1674                         }
1675                 }
1676         }
1677
1678         public static function removeFollower($importer, $contact, array $datarray = [], $item = "")
1679         {
1680                 if (($contact['rel'] == self::FRIEND) || ($contact['rel'] == self::SHARING)) {
1681                         DBA::update('contact', ['rel' => self::SHARING], ['id' => $contact['id']]);
1682                 } else {
1683                         Contact::remove($contact['id']);
1684                 }
1685         }
1686
1687         public static function removeSharer($importer, $contact, array $datarray = [], $item = "")
1688         {
1689                 if (($contact['rel'] == self::FRIEND) || ($contact['rel'] == self::FOLLOWER)) {
1690                         DBA::update('contact', ['rel' => self::FOLLOWER], ['id' => $contact['id']]);
1691                 } else {
1692                         Contact::remove($contact['id']);
1693                 }
1694         }
1695
1696         /**
1697          * @brief Create a birthday event.
1698          *
1699          * Update the year and the birthday.
1700          */
1701         public static function updateBirthdays()
1702         {
1703                 // This only handles foreign or alien networks where a birthday has been provided.
1704                 // In-network birthdays are handled within local_delivery
1705
1706                 $r = q("SELECT * FROM `contact` WHERE `bd` != '' AND `bd` > '0001-01-01' AND SUBSTRING(`bd`, 1, 4) != `bdyear` ");
1707                 if (DBA::isResult($r)) {
1708                         foreach ($r as $rr) {
1709                                 logger('update_contact_birthday: ' . $rr['bd']);
1710
1711                                 $nextbd = DateTimeFormat::utcNow('Y') . substr($rr['bd'], 4);
1712
1713                                 /*
1714                                  * Add new birthday event for this person
1715                                  *
1716                                  * $bdtext is just a readable placeholder in case the event is shared
1717                                  * with others. We will replace it during presentation to our $importer
1718                                  * to contain a sparkle link and perhaps a photo.
1719                                  */
1720
1721                                 // Check for duplicates
1722                                 $s = q("SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
1723                                         intval($rr['uid']), intval($rr['id']), DBA::escape(DateTimeFormat::utc($nextbd)), DBA::escape('birthday'));
1724
1725                                 if (DBA::isResult($s)) {
1726                                         continue;
1727                                 }
1728
1729                                 $bdtext = L10n::t('%s\'s birthday', $rr['name']);
1730                                 $bdtext2 = L10n::t('Happy Birthday %s', ' [url=' . $rr['url'] . ']' . $rr['name'] . '[/url]');
1731
1732                                 q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`)
1733                                 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ", intval($rr['uid']), intval($rr['id']),
1734                                         DBA::escape(DateTimeFormat::utcNow()), DBA::escape(DateTimeFormat::utcNow()), DBA::escape(DateTimeFormat::utc($nextbd)),
1735                                         DBA::escape(DateTimeFormat::utc($nextbd . ' + 1 day ')), DBA::escape($bdtext), DBA::escape($bdtext2), DBA::escape('birthday'),
1736                                         intval(0)
1737                                 );
1738
1739
1740                                 // update bdyear
1741                                 q("UPDATE `contact` SET `bdyear` = '%s', `bd` = '%s' WHERE `uid` = %d AND `id` = %d", DBA::escape(substr($nextbd, 0, 4)),
1742                                         DBA::escape($nextbd), intval($rr['uid']), intval($rr['id'])
1743                                 );
1744                         }
1745                 }
1746         }
1747
1748         /**
1749          * Remove the unavailable contact ids from the provided list
1750          *
1751          * @param array $contact_ids Contact id list
1752          */
1753         public static function pruneUnavailable(array &$contact_ids)
1754         {
1755                 if (empty($contact_ids)) {
1756                         return;
1757                 }
1758
1759                 $str = DBA::escape(implode(',', $contact_ids));
1760
1761                 $stmt = DBA::p("SELECT `id` FROM `contact` WHERE `id` IN ( " . $str . ") AND `blocked` = 0 AND `pending` = 0 AND `archive` = 0");
1762
1763                 $return = [];
1764                 while($contact = DBA::fetch($stmt)) {
1765                         $return[] = $contact['id'];
1766                 }
1767
1768                 DBA::close($stmt);
1769
1770                 $contact_ids = $return;
1771         }
1772
1773         /**
1774          * @brief Returns a magic link to authenticate remote visitors
1775          *
1776          * @param string $contact_url The address of the target contact profile
1777          * @param integer $url An url that we will be redirected to after the authentication
1778          *
1779          * @return string with "redir" link
1780          */
1781         public static function magicLink($contact_url, $url = '')
1782         {
1783                 $cid = self::getIdForURL($contact_url, 0, true);
1784                 if (empty($cid)) {
1785                         return $url ?: $contact_url; // Equivalent to: ($url != '') ? $url : $contact_url;
1786                 }
1787
1788                 return self::magicLinkbyId($cid, $url);
1789         }
1790
1791         /**
1792          * @brief Returns a magic link to authenticate remote visitors
1793          *
1794          * @param integer $cid The contact id of the target contact profile
1795          * @param integer $url An url that we will be redirected to after the authentication
1796          *
1797          * @return string with "redir" link
1798          */
1799         public static function magicLinkbyId($cid, $url = '')
1800         {
1801                 $contact = DBA::selectFirst('contact', ['id', 'network', 'url', 'uid'], ['id' => $cid]);
1802
1803                 return self::magicLinkbyContact($contact, $url);
1804         }
1805
1806         /**
1807          * @brief Returns a magic link to authenticate remote visitors
1808          *
1809          * @param array $contact The contact array with "uid", "network" and "url"
1810          * @param integer $url An url that we will be redirected to after the authentication
1811          *
1812          * @return string with "redir" link
1813          */
1814         public static function magicLinkbyContact($contact, $url = '')
1815         {
1816                 if ($contact['network'] != Protocol::DFRN) {
1817                         return $url ?: $contact['url']; // Equivalent to ($url != '') ? $url : $contact['url'];
1818                 }
1819
1820                 // Only redirections to the same host do make sense
1821                 if (($url != '') && (parse_url($url, PHP_URL_HOST) != parse_url($contact['url'], PHP_URL_HOST))) {
1822                         return $url;
1823                 }
1824
1825                 if ($contact['uid'] != 0) {
1826                         return self::magicLink($contact['url'], $url);
1827                 }
1828
1829                 $redirect = 'redir/' . $contact['id'];
1830
1831                 if ($url != '') {
1832                         $redirect .= '?url=' . $url;
1833                 }
1834
1835                 return $redirect;
1836         }
1837 }