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 Friendica\Util\DateTimeFormat;
  14 use Friendica\Util\Network;
  15 use dba;
  16 use Exception;
  17 use LightOpenID;
  18
  19 require_once 'boot.php';
  20 require_once 'include/datetime.php';
  21 require_once 'include/security.php';
  22 require_once 'include/text.php';
  23
  24 /**
  25  * Login module
  26  *
  27  * @author Hypolite Petovan mrpetovan@gmail.com
  28  */
  29 class Login extends BaseModule
  30 {
  31         public static function content()
  32         {
  33                 $a = self::getApp();
  34
  35                 if (x($_SESSION, 'theme')) {
  36                         unset($_SESSION['theme']);
  37                 }
  38
  39                 if (x($_SESSION, 'mobile-theme')) {
  40                         unset($_SESSION['mobile-theme']);
  41                 }
  42
  43                 if (local_user()) {
  44                         goaway(self::getApp()->get_baseurl());
  45                 }
  46
  47                 return self::form(self::getApp()->get_baseurl(), $a->config['register_policy'] != REGISTER_CLOSED);
  48         }
  49
  50         public static function post()
  51         {
  52                 session_unset();
  53                 // OpenId Login
  54                 if (
  55                         !x($_POST, 'password')
  56                         && (
  57                                 x($_POST, 'openid_url')
  58                                 || x($_POST, 'username')
  59                         )
  60                 ) {
  61                         $noid = Config::get('system', 'no_openid');
  62
  63                         $openid_url = trim($_POST['openid_url'] ? : $_POST['username']);
  64
  65                         // if it's an email address or doesn't resolve to a URL, fail.
  66                         if ($noid || strpos($openid_url, '@') || !Network::isUrlValid($openid_url)) {
  67                                 notice(L10n::t('Login failed.') . EOL);
  68                                 goaway(self::getApp()->get_baseurl());
  69                                 // NOTREACHED
  70                         }
  71
  72                         // Otherwise it's probably an openid.
  73                         try {
  74                                 $openid = new LightOpenID;
  75                                 $openid->identity = $openid_url;
  76                                 $_SESSION['openid'] = $openid_url;
  77                                 $_SESSION['remember'] = $_POST['remember'];
  78                                 $openid->returnUrl = self::getApp()->get_baseurl(true) . '/openid';
  79                                 goaway($openid->authUrl());
  80                         } catch (Exception $e) {
  81                                 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:') . ' ' . $e->getMessage());
  82                         }
  83                         // NOTREACHED
  84                 }
  85
  86                 if (x($_POST, 'auth-params') && $_POST['auth-params'] === 'login') {
  87                         $record = null;
  88
  89                         $addon_auth = [
  90                                 'username' => trim($_POST['username']),
  91                                 'password' => trim($_POST['password']),
  92                                 'authenticated' => 0,
  93                                 'user_record' => null
  94                         ];
  95
  96                         /*
  97                          * An addon indicates successful login by setting 'authenticated' to non-zero value and returning a user record
  98                          * Addons should never set 'authenticated' except to indicate success - as hooks may be chained
  99                          * and later addons should not interfere with an earlier one that succeeded.
 100                          */
 101                         Addon::callHooks('authenticate', $addon_auth);
 102
 103                         if ($addon_auth['authenticated'] && count($addon_auth['user_record'])) {
 104                                 $record = $addon_auth['user_record'];
 105                         } else {
 106                                 $user_id = User::authenticate(trim($_POST['username']), trim($_POST['password']));
 107                                 if ($user_id) {
 108                                         $record = dba::selectFirst('user', [], ['uid' => $user_id]);
 109                                 }
 110                         }
 111
 112                         if (!$record || !count($record)) {
 113                                 logger('authenticate: failed login attempt: ' . notags(trim($_POST['username'])) . ' from IP ' . $_SERVER['REMOTE_ADDR']);
 114                                 notice(L10n::t('Login failed.') . EOL);
 115                                 goaway(self::getApp()->get_baseurl());
 116                         }
 117
 118                         if (!$_POST['remember']) {
 119                                 new_cookie(0); // 0 means delete on browser exit
 120                         }
 121
 122                         // if we haven't failed up this point, log them in.
 123                         $_SESSION['remember'] = $_POST['remember'];
 124                         $_SESSION['last_login_date'] = DateTimeFormat::utcNow();
 125                         authenticate_success($record, true, true);
 126
 127                         if (x($_SESSION, 'return_url')) {
 128                                 $return_url = $_SESSION['return_url'];
 129                                 unset($_SESSION['return_url']);
 130                         } else {
 131                                 $return_url = '';
 132                         }
 133
 134                         goaway($return_url);
 135                 }
 136         }
 137
 138         /**
 139          * @brief Tries to auth the user from the cookie or session
 140          *
 141          * @todo Should be moved to Friendica\Core\Session when it's created
 142          */
 143         public static function sessionAuth()
 144         {
 145                 // When the "Friendica" cookie is set, take the value to authenticate and renew the cookie.
 146                 if (isset($_COOKIE["Friendica"])) {
 147                         $data = json_decode($_COOKIE["Friendica"]);
 148                         if (isset($data->uid)) {
 149
 150                                 $user = dba::selectFirst('user', [],
 151                                         [
 152                                                 'uid'             => $data->uid,
 153                                                 'blocked'         => false,
 154                                                 'account_expired' => false,
 155                                                 'account_removed' => false,
 156                                                 'verified'        => true,
 157                                         ]
 158                                 );
 159                                 if (DBM::is_result($user)) {
 160                                         if ($data->hash != cookie_hash($user)) {
 161                                                 logger("Hash for user " . $data->uid . " doesn't fit.");
 162                                                 nuke_session();
 163                                                 goaway(self::getApp()->get_baseurl());
 164                                         }
 165
 166                                         // Renew the cookie
 167                                         // Expires after 7 days by default,
 168                                         // can be set via system.auth_cookie_lifetime
 169                                         $authcookiedays = Config::get('system', 'auth_cookie_lifetime', 7);
 170                                         new_cookie($authcookiedays * 24 * 60 * 60, $user);
 171
 172                                         // Do the authentification if not done by now
 173                                         if (!isset($_SESSION) || !isset($_SESSION['authenticated'])) {
 174                                                 authenticate_success($user);
 175
 176                                                 if (Config::get('system', 'paranoia')) {
 177                                                         $_SESSION['addr'] = $data->ip;
 178                                                 }
 179                                         }
 180                                 }
 181                         }
 182                 }
 183
 184                 if (isset($_SESSION) && x($_SESSION, 'authenticated')) {
 185                         if (x($_SESSION, 'visitor_id') && !x($_SESSION, 'uid')) {
 186                                 $r = q("SELECT * FROM `contact` WHERE `id` = %d LIMIT 1",
 187                                         intval($_SESSION['visitor_id'])
 188                                 );
 189                                 if (DBM::is_result($r)) {
 190                                         self::getApp()->contact = $r[0];
 191                                 }
 192                         }
 193
 194                         if (x($_SESSION, 'uid')) {
 195                                 // already logged in user returning
 196                                 $check = Config::get('system', 'paranoia');
 197                                 // extra paranoia - if the IP changed, log them out
 198                                 if ($check && ($_SESSION['addr'] != $_SERVER['REMOTE_ADDR'])) {
 199                                         logger('Session address changed. Paranoid setting in effect, blocking session. ' .
 200                                                 $_SESSION['addr'] . ' != ' . $_SERVER['REMOTE_ADDR']);
 201                                         nuke_session();
 202                                         goaway(self::getApp()->get_baseurl());
 203                                 }
 204
 205                                 $user = dba::selectFirst('user', [],
 206                                         [
 207                                                 'uid'             => $_SESSION['uid'],
 208                                                 'blocked'         => false,
 209                                                 'account_expired' => false,
 210                                                 'account_removed' => false,
 211                                                 'verified'        => true,
 212                                         ]
 213                                 );
 214                                 if (!DBM::is_result($user)) {
 215                                         nuke_session();
 216                                         goaway(self::getApp()->get_baseurl());
 217                                 }
 218
 219                                 // Make sure to refresh the last login time for the user if the user
 220                                 // stays logged in for a long time, e.g. with "Remember Me"
 221                                 $login_refresh = false;
 222                                 if (!x($_SESSION['last_login_date'])) {
 223                                         $_SESSION['last_login_date'] = DateTimeFormat::utcNow();
 224                                 }
 225                                 if (strcmp(DateTimeFormat::utc('now - 12 hours'), $_SESSION['last_login_date']) > 0) {
 226                                         $_SESSION['last_login_date'] = DateTimeFormat::utcNow();
 227                                         $login_refresh = true;
 228                                 }
 229                                 authenticate_success($user, false, false, $login_refresh);
 230                         }
 231                 }
 232         }
 233
 234         /**
 235          * @brief Wrapper for adding a login box.
 236          *
 237          * @param string $return_url The url relative to the base the user should be sent
 238          *                                                       back to after login completes
 239          * @param bool $register If $register == true provide a registration link.
 240          *                                               This will most always depend on the value of $a->config['register_policy'].
 241          * @param array $hiddens  optional
 242          *
 243          * @return string Returns the complete html for inserting into the page
 244          *
 245          * @hooks 'login_hook' string $o
 246          */
 247         public static function form($return_url = null, $register = false, $hiddens = [])
 248         {
 249                 $a = self::getApp();
 250                 $o = '';
 251                 $reg = false;
 252                 if ($register) {
 253                         $reg = [
 254                                 'title' => L10n::t('Create a New Account'),
 255                                 'desc' => L10n::t('Register')
 256                         ];
 257                 }
 258
 259                 $noid = Config::get('system', 'no_openid');
 260
 261                 if (is_null($return_url)) {
 262                         $return_url = $a->query_string;
 263                 }
 264
 265                 if (local_user()) {
 266                         $tpl = get_markup_template('logout.tpl');
 267                 } else {
 268                         $a->page['htmlhead'] .= replace_macros(
 269                                 get_markup_template('login_head.tpl'),
 270                                 [
 271                                         '$baseurl' => $a->get_baseurl(true)
 272                                 ]
 273                         );
 274
 275                         $tpl = get_markup_template('login.tpl');
 276                         $_SESSION['return_url'] = $return_url;
 277                 }
 278
 279                 $o .= replace_macros(
 280                         $tpl,
 281                         [
 282                                 '$dest_url'     => self::getApp()->get_baseurl(true) . '/login',
 283                                 '$logout'       => L10n::t('Logout'),
 284                                 '$login'        => L10n::t('Login'),
 285
 286                                 '$lname'        => ['username', L10n::t('Nickname or Email: ') , '', ''],
 287                                 '$lpassword'    => ['password', L10n::t('Password: '), '', ''],
 288                                 '$lremember'    => ['remember', L10n::t('Remember me'), 0,  ''],
 289
 290                                 '$openid'       => !$noid,
 291                                 '$lopenid'      => ['openid_url', L10n::t('Or login using OpenID: '),'',''],
 292
 293                                 '$hiddens'      => $hiddens,
 294
 295                                 '$register'     => $reg,
 296
 297                                 '$lostpass'     => L10n::t('Forgot your password?'),
 298                                 '$lostlink'     => L10n::t('Password Reset'),
 299
 300                                 '$tostitle'     => L10n::t('Website Terms of Service'),
 301                                 '$toslink'      => L10n::t('terms of service'),
 302
 303                                 '$privacytitle' => L10n::t('Website Privacy Policy'),
 304                                 '$privacylink'  => L10n::t('privacy policy'),
 305                         ]
 306                 );
 307
 308                 Addon::callHooks('login_hook', $o);
 309
 310                 return $o;
 311         }
 312 }