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