src/Module/Login.php

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