src/Model/Contact.php

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