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