src/Module/Login.php

   1 <?php
   2 /**
   3  * @file src/Module/Login.php
   4  */
   5 namespace Friendica\Module;
   6
   7 use Friendica\BaseModule;
   8 use Friendica\Core\Addon;
   9 use Friendica\Core\Config;
  10 use Friendica\Core\L10n;
  11 use Friendica\Database\DBM;
  12 use Friendica\Model\User;
  13 use dba;
  14
  15 require_once 'boot.php';
  16 require_once 'include/datetime.php';
  17 require_once 'include/pgettext.php';
  18 require_once 'include/security.php';
  19 require_once 'include/text.php';
  20
  21 /**
  22  * Login module
  23  *
  24  * @author Hypolite Petovan mrpetovan@gmail.com
  25  */
  26 class Login extends BaseModule
  27 {
  28         public static function content()
  29         {
  30                 $a = self::getApp();
  31
  32                 if (x($_SESSION, 'theme')) {
  33                         unset($_SESSION['theme']);
  34                 }
  35
  36                 if (x($_SESSION, 'mobile-theme')) {
  37                         unset($_SESSION['mobile-theme']);
  38                 }
  39
  40                 if (local_user()) {
  41                         goaway(self::getApp()->get_baseurl());
  42                 }
  43
  44                 return self::form(self::getApp()->get_baseurl(), $a->config['register_policy'] != REGISTER_CLOSED);
  45         }
  46
  47         public static function post()
  48         {
  49                 session_unset();
  50                 // OpenId Login
  51                 if (
  52                         !x($_POST, 'password')
  53                         && (
  54                                 x($_POST, 'openid_url')
  55                                 || x($_POST, 'username')
  56                         )
  57                 ) {
  58                         $noid = Config::get('system', 'no_openid');
  59
  60                         $openid_url = trim($_POST['openid_url'] ? : $_POST['username']);
  61
  62                         // if it's an email address or doesn't resolve to a URL, fail.
  63                         if ($noid || strpos($openid_url, '@') || !validate_url($openid_url)) {
  64                                 notice(L10n::t('Login failed.') . EOL);
  65                                 goaway(self::getApp()->get_baseurl());
  66                                 // NOTREACHED
  67                         }
  68
  69                         // Otherwise it's probably an openid.
  70                         try {
  71                                 require_once 'library/openid.php';
  72                                 $openid = new \LightOpenID;
  73                                 $openid->identity = $openid_url;
  74                                 $_SESSION['openid'] = $openid_url;
  75                                 $_SESSION['remember'] = $_POST['remember'];
  76                                 $openid->returnUrl = self::getApp()->get_baseurl(true) . '/openid';
  77                                 goaway($openid->authUrl());
  78                         } catch (Exception $e) {
  79                                 notice(L10n::t('We encountered a problem while logging in with the OpenID you provided. Please check the correct spelling of the ID.') . '<br /><br >' . L10n::t('The error message was:') . ' ' . $e->getMessage());
  80                         }
  81                         // NOTREACHED
  82                 }
  83
  84                 if (x($_POST, 'auth-params') && $_POST['auth-params'] === 'login') {
  85                         $record = null;
  86
  87                         $addon_auth = [
  88                                 'username' => trim($_POST['username']),
  89                                 'password' => trim($_POST['password']),
  90                                 'authenticated' => 0,
  91                                 'user_record' => null
  92                         ];
  93
  94                         /*
  95                          * An addon indicates successful login by setting 'authenticated' to non-zero value and returning a user record
  96                          * Addons should never set 'authenticated' except to indicate success - as hooks may be chained
  97                          * and later addons should not interfere with an earlier one that succeeded.
  98                          */
  99                         Addon::callHooks('authenticate', $addon_auth);
 100
 101                         if ($addon_auth['authenticated'] && count($addon_auth['user_record'])) {
 102                                 $record = $addon_auth['user_record'];
 103                         } else {
 104                                 $user_id = User::authenticate(trim($_POST['username']), trim($_POST['password']));
 105                                 if ($user_id) {
 106                                         $record = dba::selectFirst('user', [], ['uid' => $user_id]);
 107                                 }
 108                         }
 109
 110                         if (!$record || !count($record)) {
 111                                 logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
 112                                 notice(L10n::t('Login failed.') . EOL);
 113                                 goaway(self::getApp()->get_baseurl());
 114                         }
 115
 116                         if (!$_POST['remember']) {
 117                                 new_cookie(0); // 0 means delete on browser exit
 118                         }
 119
 120                         // if we haven't failed up this point, log them in.
 121                         $_SESSION['remember'] = $_POST['remember'];
 122                         $_SESSION['last_login_date'] = datetime_convert('UTC', 'UTC');
 123                         authenticate_success($record, true, true);
 124
 125                         if (x($_SESSION, 'return_url')) {
 126                                 $return_url = $_SESSION['return_url'];
 127                                 unset($_SESSION['return_url']);
 128                         } else {
 129                                 $return_url = '';
 130                         }
 131
 132                         goaway($return_url);
 133                 }
 134         }
 135
 136         /**
 137          * @brief Tries to auth the user from the cookie or session
 138          *
 139          * @todo Should be moved to Friendica\Core\Session when it's created
 140          */
 141         public static function sessionAuth()
 142         {
 143                 // When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
 144                 if (isset($_COOKIE["Friendica"])) {
 145                         $data = json_decode($_COOKIE["Friendica"]);
 146                         if (isset($data->uid)) {
 147
 148                                 $user = dba::selectFirst('user', [],
 149                                         [
 150                                                 'uid'             => $data->uid,
 151                                                 'blocked'         => false,
 152                                                 'account_expired' => false,
 153                                                 'account_removed' => false,
 154                                                 'verified'        => true,
 155                                         ]
 156                                 );
 157                                 if (DBM::is_result($user)) {
 158                                         if ($data->hash != cookie_hash($user)) {
 159                                                 logger("Hash for user " . $data->uid . " doesn't fit.");
 160                                                 nuke_session();
 161                                                 goaway(self::getApp()->get_baseurl());
 162                                         }
 163
 164                                         // Renew the cookie
 165                                         // Expires after 7 days by default,
 166                                         // can be set via system.auth_cookie_lifetime
 167                                         $authcookiedays = Config::get('system', 'auth_cookie_lifetime', 7);
 168                                         new_cookie($authcookiedays * 24 * 60 * 60, $user);
 169
 170                                         // Do the authentification if not done by now
 171                                         if (!isset($_SESSION) || !isset($_SESSION['authenticated'])) {
 172                                                 authenticate_success($user);
 173
 174                                                 if (Config::get('system', 'paranoia')) {
 175                                                         $_SESSION['addr'] = $data->ip;
 176                                                 }
 177                                         }
 178                                 }
 179                         }
 180                 }
 181
 182                 if (isset($_SESSION) && x($_SESSION, 'authenticated')) {
 183                         if (x($_SESSION, 'visitor_id') && !x($_SESSION, 'uid')) {
 184                                 $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 185                                         intval($_SESSION['visitor_id'])
 186                                 );
 187                                 if (DBM::is_result($r)) {
 188                                         self::getApp()->contact = $r[0];
 189                                 }
 190                         }
 191
 192                         if (x($_SESSION, 'uid')) {
 193                                 // already logged in user returning
 194                                 $check = Config::get('system', 'paranoia');
 195                                 // extra paranoia - if the IP changed, log them out
 196                                 if ($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
 197                                         logger('Session address changed. Paranoid setting in effect, blocking session. ' .
 198                                                 $_SESSION['addr'] . ' != ' . $_SERVER['REMOTE_ADDR']);
 199                                         nuke_session();
 200                                         goaway(self::getApp()->get_baseurl());
 201                                 }
 202
 203                                 $user = dba::selectFirst('user', [],
 204                                         [
 205                                                 'uid'             => $_SESSION['uid'],
 206                                                 'blocked'         => false,
 207                                                 'account_expired' => false,
 208                                                 'account_removed' => false,
 209                                                 'verified'        => true,
 210                                         ]
 211                                 );
 212                                 if (!DBM::is_result($user)) {
 213                                         nuke_session();
 214                                         goaway(self::getApp()->get_baseurl());
 215                                 }
 216
 217                                 // Make sure to refresh the last login time for the user if the user
 218                                 // stays logged in for a long time, e.g. with "Remember Me"
 219                                 $login_refresh = false;
 220                                 if (!x($_SESSION['last_login_date'])) {
 221                                         $_SESSION['last_login_date'] = datetime_convert('UTC', 'UTC');
 222                                 }
 223                                 if (strcmp(datetime_convert('UTC', 'UTC', 'now - 12 hours'), $_SESSION['last_login_date']) > 0) {
 224                                         $_SESSION['last_login_date'] = datetime_convert('UTC', 'UTC');
 225                                         $login_refresh = true;
 226                                 }
 227                                 authenticate_success($user, false, false, $login_refresh);
 228                         }
 229                 }
 230         }
 231
 232         /**
 233          * @brief Wrapper for adding a login box.
 234          *
 235          * @param string $return_url The url relative to the base the user should be sent
 236          *                                                       back to after login completes
 237          * @param bool $register If $register == true provide a registration link.
 238          *                                               This will most always depend on the value of $a->config['register_policy'].
 239          * @param array $hiddens  optional
 240          *
 241          * @return string Returns the complete html for inserting into the page
 242          *
 243          * @hooks 'login_hook' string $o
 244          */
 245         public static function form($return_url = null, $register = false, $hiddens = [])
 246         {
 247                 $a = self::getApp();
 248                 $o = '';
 249                 $reg = false;
 250                 if ($register) {
 251                         $reg = [
 252                                 'title' => L10n::t('Create a New Account'),
 253                                 'desc' => L10n::t('Register')
 254                         ];
 255                 }
 256
 257                 $noid = Config::get('system', 'no_openid');
 258
 259                 if (is_null($return_url)) {
 260                         $return_url = $a->query_string;
 261                 }
 262
 263                 if (local_user()) {
 264                         $tpl = get_markup_template('logout.tpl');
 265                 } else {
 266                         $a->page['htmlhead'] .= replace_macros(
 267                                 get_markup_template('login_head.tpl'),
 268                                 [
 269                                         '$baseurl' => $a->get_baseurl(true)
 270                                 ]
 271                         );
 272
 273                         $tpl = get_markup_template('login.tpl');
 274                         $_SESSION['return_url'] = $return_url;
 275                 }
 276
 277                 $o .= replace_macros(
 278                         $tpl,
 279                         [
 280                                 '$dest_url'     => self::getApp()->get_baseurl(true) . '/login',
 281                                 '$logout'       => L10n::t('Logout'),
 282                                 '$login'        => L10n::t('Login'),
 283
 284                                 '$lname'        => ['username', L10n::t('Nickname or Email: ') , '', ''],
 285                                 '$lpassword'    => ['password', L10n::t('Password: '), '', ''],
 286                                 '$lremember'    => ['remember', L10n::t('Remember me'), 0,  ''],
 287
 288                                 '$openid'       => !$noid,
 289                                 '$lopenid'      => ['openid_url', L10n::t('Or login using OpenID: '),'',''],
 290
 291                                 '$hiddens'      => $hiddens,
 292
 293                                 '$register'     => $reg,
 294
 295                                 '$lostpass'     => L10n::t('Forgot your password?'),
 296                                 '$lostlink'     => L10n::t('Password Reset'),
 297
 298                                 '$tostitle'     => L10n::t('Website Terms of Service'),
 299                                 '$toslink'      => L10n::t('terms of service'),
 300
 301                                 '$privacytitle' => L10n::t('Website Privacy Policy'),
 302                                 '$privacylink'  => L10n::t('privacy policy'),
 303                         ]
 304                 );
 305
 306                 Addon::callHooks('login_hook', $o);
 307
 308                 return $o;
 309         }
 310 }