src/Core/Authentication.php

   1 <?php
   2 /**
   3  * @file /src/Core/Authentication.php
   4  */
   5
   6 namespace Friendica\Core;
   7
   8 use Friendica\BaseObject;
   9 use Friendica\Core\Addon;
  10 use Friendica\Core\Config;
  11 use Friendica\Core\L10n;
  12 use Friendica\Core\Logger;
  13 use Friendica\Core\PConfig;
  14 use Friendica\Database\DBA;
  15 use Friendica\Model\User;
  16 use Friendica\Util\DateTimeFormat;
  17
  18 /**
  19 * Handle Authentification, Session and Cookies
  20 */
  21 class Authentication extends BaseObject
  22 {
  23         /**
  24          * @brief Calculate the hash that is needed for the "Friendica" cookie
  25          *
  26          * @param array $user Record from "user" table
  27          *
  28          * @return string Hashed data
  29          */
  30         public static function getCookieHashForUser($user)
  31         {
  32                 return(hash("sha256", Config::get("system", "site_prvkey") .
  33                                 $user["prvkey"] .
  34                                 $user["password"]));
  35         }
  36
  37         /**
  38          * @brief Set the "Friendica" cookie
  39          *
  40          * @param int $time
  41          * @param array $user Record from "user" table
  42          */
  43         public static  function setCookie($time, $user = [])
  44         {
  45                 if ($time != 0) {
  46                         $time = $time + time();
  47                 }
  48
  49                 if ($user) {
  50                         $value = json_encode(["uid" => $user["uid"],
  51                                 "hash" => self::getCookieHashForUser($user),
  52                                 "ip" => defaults($_SERVER, 'REMOTE_ADDR', '0.0.0.0')]);
  53                 } else {
  54                         $value = "";
  55                 }
  56
  57                 setcookie("Friendica", $value, $time, "/", "", (Config::get('system', 'ssl_policy') == SSL_POLICY_FULL), true);
  58         }
  59
  60         /**
  61          * @brief Sets the provided user's authenticated session
  62          *
  63          * @todo Should be moved to Friendica\Core\Session once it's created
  64          *
  65          * @param type $user_record
  66          * @param type $login_initial
  67          * @param type $interactive
  68          * @param type $login_refresh
  69          */
  70         public static function setAuthenticatedSessionForUser($user_record, $login_initial = false, $interactive = false, $login_refresh = false)
  71         {
  72                 $a = self::getApp();
  73
  74                 $_SESSION['uid'] = $user_record['uid'];
  75                 $_SESSION['theme'] = $user_record['theme'];
  76                 $_SESSION['mobile-theme'] = PConfig::get($user_record['uid'], 'system', 'mobile_theme');
  77                 $_SESSION['authenticated'] = 1;
  78                 $_SESSION['page_flags'] = $user_record['page-flags'];
  79                 $_SESSION['my_url'] = $a->getbaseUrl() . '/profile/' . $user_record['nickname'];
  80                 $_SESSION['my_address'] = $user_record['nickname'] . '@' . substr($a->getbaseUrl(), strpos($a->getbaseUrl(), '://') + 3);
  81                 $_SESSION['addr'] = defaults($_SERVER, 'REMOTE_ADDR', '0.0.0.0');
  82
  83                 $a->user = $user_record;
  84
  85                 if ($interactive) {
  86                         if ($a->user['login_date'] <= DBA::NULL_DATETIME) {
  87                                 $_SESSION['return_path'] = 'profile_photo/new';
  88                                 $a->module = 'profile_photo';
  89                                 info(L10n::t("Welcome ") . $a->user['username'] . EOL);
  90                                 info(L10n::t('Please upload a profile photo.') . EOL);
  91                         } else {
  92                                 info(L10n::t("Welcome back ") . $a->user['username'] . EOL);
  93                         }
  94                 }
  95
  96                 $member_since = strtotime($a->user['register_date']);
  97                 if (time() < ($member_since + ( 60 * 60 * 24 * 14))) {
  98                         $_SESSION['new_member'] = true;
  99                 } else {
 100                         $_SESSION['new_member'] = false;
 101                 }
 102                 if (strlen($a->user['timezone'])) {
 103                         date_default_timezone_set($a->user['timezone']);
 104                         $a->timezone = $a->user['timezone'];
 105                 }
 106
 107                 $masterUid = $user_record['uid'];
 108
 109                 if (!empty($_SESSION['submanage'])) {
 110                         $user = DBA::selectFirst('user', ['uid'], ['uid' => $_SESSION['submanage']]);
 111                         if (DBA::isResult($user)) {
 112                                 $masterUid = $user['uid'];
 113                         }
 114                 }
 115
 116                 $a->identities = User::identities($masterUid);
 117
 118                 if ($login_initial) {
 119                         Logger::log('auth_identities: ' . print_r($a->identities, true), Logger::DEBUG);
 120                 }
 121                 if ($login_refresh) {
 122                         Logger::log('auth_identities refresh: ' . print_r($a->identities, true), Logger::DEBUG);
 123                 }
 124
 125                 $contact = DBA::selectFirst('contact', [], ['uid' => $_SESSION['uid'], 'self' => true]);
 126                 if (DBA::isResult($contact)) {
 127                         $a->contact = $contact;
 128                         $a->cid = $contact['id'];
 129                         $_SESSION['cid'] = $a->cid;
 130                 }
 131
 132                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] . '"');
 133
 134                 if ($login_initial || $login_refresh) {
 135                         DBA::update('user', ['login_date' => DateTimeFormat::utcNow()], ['uid' => $_SESSION['uid']]);
 136
 137                         // Set the login date for all identities of the user
 138                         DBA::update('user', ['login_date' => DateTimeFormat::utcNow()],
 139                                 ['parent-uid' => $masterUid, 'account_removed' => false]);
 140                 }
 141
 142                 if ($login_initial) {
 143                         /*
 144                          * If the user specified to remember the authentication, then set a cookie
 145                          * that expires after one week (the default is when the browser is closed).
 146                          * The cookie will be renewed automatically.
 147                          * The week ensures that sessions will expire after some inactivity.
 148                          */
 149                         if (!empty($_SESSION['remember'])) {
 150                                 Logger::log('Injecting cookie for remembered user ' . $a->user['nickname']);
 151                                 self::setCookie(604800, $user_record);
 152                                 unset($_SESSION['remember']);
 153                         }
 154                 }
 155
 156                 if ($login_initial) {
 157                         Addon::callHooks('logged_in', $a->user);
 158
 159                         if (($a->module !== 'home') && isset($_SESSION['return_path'])) {
 160                                 $a->internalRedirect($_SESSION['return_path']);
 161                         }
 162                 }
 163         }
 164
 165         /**
 166          * @brief Kills the "Friendica" cookie and all session data
 167          */
 168         public static function deleteSession()
 169         {
 170                 self::setCookie(-3600); // make sure cookie is deleted on browser close, as a security measure
 171                 session_unset();
 172                 session_destroy();
 173         }
 174 }
 175