mirror of
https://github.com/snipe/snipe-it.git
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564 lines
19 KiB
PHP
564 lines
19 KiB
PHP
<?php
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namespace App\Http\Controllers\Auth;
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use App\Http\Controllers\Controller;
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use App\Models\Setting;
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use App\Models\User;
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use App\Models\Ldap;
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use App\Services\Saml;
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use Com\Tecnick\Barcode\Barcode;
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use Google2FA;
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use Illuminate\Foundation\Auth\ThrottlesLogins;
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use Illuminate\Http\Request;
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use Illuminate\Support\Carbon;
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use Illuminate\Support\Facades\Auth;
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use Illuminate\Support\Facades\Session;
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use Illuminate\Support\Facades\Validator;
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use Log;
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use Redirect;
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/**
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* This controller handles authentication for the user, including local
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* database users and LDAP users.
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*
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* @author [A. Gianotto] [<snipe@snipe.net>]
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* @version v1.0
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*/
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class LoginController extends Controller
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{
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use ThrottlesLogins;
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// This tells the auth controller to use username instead of email address
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protected $username = 'username';
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/**
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* Where to redirect users after login / registration.
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*
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* @var string
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*/
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protected $redirectTo = '/';
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/**
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* @var Saml
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*/
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protected $saml;
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/**
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* Create a new authentication controller instance.
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*
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* @param Saml $saml
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*
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* @return void
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*/
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public function __construct(Saml $saml)
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{
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parent::__construct();
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$this->middleware('guest', ['except' => ['logout', 'postTwoFactorAuth', 'getTwoFactorAuth', 'getTwoFactorEnroll']]);
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Session::put('backUrl', \URL::previous());
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$this->saml = $saml;
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}
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public function showLoginForm(Request $request)
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{
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$this->loginViaRemoteUser($request);
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$this->loginViaSaml($request);
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if (Auth::check()) {
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return redirect()->intended('/');
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}
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if (!$request->session()->has('loggedout')) {
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// If the environment is set to ALWAYS require SAML, go straight to the SAML route.
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// We don't need to check other settings, as this should override those.
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if (config('app.require_saml')) {
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return redirect()->route('saml.login');
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}
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if ($this->saml->isEnabled() && Setting::getSettings()->saml_forcelogin == '1' && ! ($request->has('nosaml') || $request->session()->has('error'))) {
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return redirect()->route('saml.login');
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}
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}
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if (Setting::getSettings()->login_common_disabled == '1') {
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return view('errors.403');
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}
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return view('auth.login');
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}
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/**
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* Log in a user by SAML
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*
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* @author Johnson Yi <jyi.dev@outlook.com>
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*
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* @since 5.0.0
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*
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* @param Request $request
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*
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* @return User
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*
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* @throws \Exception
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*/
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private function loginViaSaml(Request $request)
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{
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$saml = $this->saml;
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$samlData = $request->session()->get('saml_login');
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if ($saml->isEnabled() && ! empty($samlData)) {
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try {
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$user = $saml->samlLogin($samlData);
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if (!is_null($user)) {
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Auth::login($user);
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} else {
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$username = $saml->getUsername();
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\Log::debug("SAML user '$username' could not be found in database.");
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$request->session()->flash('error', trans('auth/message.signin.error'));
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$saml->clearData();
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}
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if ($user = Auth::user()) {
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$user->last_login = \Carbon::now();
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$user->saveQuietly();
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}
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} catch (\Exception $e) {
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\Log::debug('There was an error authenticating the SAML user: '.$e->getMessage());
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throw new \Exception($e->getMessage());
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}
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// Fallthrough with better logging
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} else {
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// Better logging
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if (empty($samlData)) {
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\Log::debug("SAML page requested, but samlData seems empty.");
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}
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}
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}
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/**
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* Log in a user by LDAP
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*
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* @author Wes Hulette <jwhulette@gmail.com>
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*
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* @since 5.0.0
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*
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* @param Request $request
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*
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* @return User
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*
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* @throws \Exception
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*/
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private function loginViaLdap(Request $request): User
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{
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Log::debug("Binding user to LDAP.");
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$ldap_user = Ldap::findAndBindUserLdap($request->input('username'), $request->input('password'));
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if (!$ldap_user) {
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Log::debug("LDAP user ".$request->input('username')." not found in LDAP or could not bind");
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throw new \Exception("Could not find user in LDAP directory");
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} else {
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Log::debug("LDAP user ".$request->input('username')." successfully bound to LDAP");
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}
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// Check if the user already exists in the database and was imported via LDAP
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$user = User::where('username', '=', $request->input('username'))->whereNull('deleted_at')->where('ldap_import', '=', 1)->where('activated', '=', '1')->first(); // FIXME - if we get more than one we should fail. and we sure about this ldap_import thing?
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Log::debug("Local auth lookup complete");
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// The user does not exist in the database. Try to get them from LDAP.
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// If user does not exist and authenticates successfully with LDAP we
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// will create it on the fly and sign in with default permissions
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if (!$user) {
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Log::debug("Local user ".$request->input('username')." does not exist");
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Log::debug("Creating local user ".$request->input('username'));
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if ($user = Ldap::createUserFromLdap($ldap_user, $request->input('password'))) {
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Log::debug("Local user created.");
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} else {
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Log::debug("Could not create local user.");
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throw new \Exception("Could not create local user");
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}
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// If the user exists and they were imported from LDAP already
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} else {
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Log::debug("Local user ".$request->input('username')." exists in database. Updating existing user against LDAP.");
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$ldap_attr = Ldap::parseAndMapLdapAttributes($ldap_user);
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$user->password = $user->noPassword();
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if (Setting::getSettings()->ldap_pw_sync=='1') {
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$user->password = bcrypt($request->input('password'));
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}
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$user->email = $ldap_attr['email'];
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$user->first_name = $ldap_attr['firstname'];
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$user->last_name = $ldap_attr['lastname']; //FIXME (or TODO?) - do we need to map additional fields that we now support? E.g. country, phone, etc.
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$user->saveQuietly();
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} // End if(!user)
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return $user;
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}
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private function loginViaRemoteUser(Request $request)
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{
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$header_name = Setting::getSettings()->login_remote_user_header_name ?: 'REMOTE_USER';
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$remote_user = $request->server($header_name);
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if (!isset($remote_user)) {
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$remote_user = $request->server('REDIRECT_'.$header_name);
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}
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if (Setting::getSettings()->login_remote_user_enabled == '1' && isset($remote_user) && ! empty($remote_user)) {
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Log::debug("Authenticating via HTTP header $header_name.");
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$strip_prefixes = [
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// IIS/AD
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// https://github.com/snipe/snipe-it/pull/5862
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'\\',
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// Google Cloud IAP
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// https://cloud.google.com/iap/docs/identity-howto#getting_the_users_identity_with_signed_headers
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'accounts.google.com:',
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];
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$pos = 0;
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foreach ($strip_prefixes as $needle) {
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if (($pos = strpos($remote_user, $needle)) !== false) {
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$pos += strlen($needle);
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break;
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}
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}
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if ($pos > 0) {
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$remote_user = substr($remote_user, $pos);
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}
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try {
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$user = User::where('username', '=', $remote_user)->whereNull('deleted_at')->where('activated', '=', '1')->first();
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Log::debug('Remote user auth lookup complete');
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if (! is_null($user)) {
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Auth::login($user, $request->input('remember'));
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}
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} catch (Exception $e) {
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Log::debug('There was an error authenticating the Remote user: '.$e->getMessage());
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}
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}
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}
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/**
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* Account sign in form processing.
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*
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* @return Redirect
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*/
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public function login(Request $request)
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{
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//If the environment is set to ALWAYS require SAML, return access denied
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if (config('app.require_saml')) {
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\Log::debug('require SAML is enabled in the .env - return a 403');
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return view('errors.403');
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}
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if (Setting::getSettings()->login_common_disabled == '1') {
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\Log::debug('login_common_disabled is set to 1 - return a 403');
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return view('errors.403');
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}
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$validator = $this->validator($request->all());
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if ($validator->fails()) {
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return redirect()->back()->withInput()->withErrors($validator);
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}
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$this->maxLoginAttempts = config('auth.passwords.users.throttle.max_attempts');
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$this->lockoutTime = config('auth.passwords.users.throttle.lockout_duration');
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if ($lockedOut = $this->hasTooManyLoginAttempts($request)) {
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$this->fireLockoutEvent($request);
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return $this->sendLockoutResponse($request);
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}
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$user = null;
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// Should we even check for LDAP users?
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if (Setting::getSettings()->ldap_enabled) { // avoid hitting the $this->ldap
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LOG::debug('LDAP is enabled.');
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try {
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LOG::debug('Attempting to log user in by LDAP authentication.');
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$user = $this->loginViaLdap($request);
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Auth::login($user, $request->input('remember'));
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// If the user was unable to login via LDAP, log the error and let them fall through to
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// local authentication.
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} catch (\Exception $e) {
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Log::debug('There was an error authenticating the LDAP user: '.$e->getMessage());
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}
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}
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// If the user wasn't authenticated via LDAP, skip to local auth
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if (! $user) {
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Log::debug('Authenticating user against database.');
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// Try to log the user in
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if (! Auth::attempt(['username' => $request->input('username'), 'password' => $request->input('password'), 'activated' => 1], $request->input('remember'))) {
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if (! $lockedOut) {
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$this->incrementLoginAttempts($request);
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}
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Log::debug('Local authentication failed.');
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return redirect()->back()->withInput()->with('error', trans('auth/message.account_not_found'));
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} else {
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$this->clearLoginAttempts($request);
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}
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}
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if ($user = Auth::user()) {
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$user->last_login = \Carbon::now();
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$user->activated = 1;
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$user->saveQuietly();
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}
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// Redirect to the users page
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return redirect()->intended()->with('success', trans('auth/message.signin.success'));
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}
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/**
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* Two factor enrollment page
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*
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* @return Redirect
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*/
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public function getTwoFactorEnroll()
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{
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// Make sure the user is logged in
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if (! Auth::check()) {
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return redirect()->route('login')->with('error', trans('auth/general.login_prompt'));
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}
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$settings = Setting::getSettings();
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$user = Auth::user();
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// We wouldn't normally see this page if 2FA isn't enforced via the
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// \App\Http\Middleware\CheckForTwoFactor middleware AND if a device isn't enrolled,
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// but let's check check anyway in case there's a browser history or back button thing.
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// While you can access this page directly, enrolling a device when 2FA isn't enforced
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// won't cause any harm.
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if (($user->two_factor_secret != '') && ($user->two_factor_enrolled == 1)) {
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return redirect()->route('two-factor')->with('error', trans('auth/message.two_factor.already_enrolled'));
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}
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$secret = Google2FA::generateSecretKey();
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$user->two_factor_secret = $secret;
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$barcode = new Barcode();
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$barcode_obj =
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$barcode->getBarcodeObj(
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'QRCODE',
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sprintf(
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'otpauth://totp/%s:%s?secret=%s&issuer=Snipe-IT&period=30',
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urlencode($settings->site_name),
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urlencode($user->username),
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urlencode($secret)
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),
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300,
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300,
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'black',
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[-2, -2, -2, -2]
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);
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$user->saveQuietly(); // make sure to save *AFTER* displaying the barcode, or else we might save a two_factor_secret that we never actually displayed to the user if the barcode fails
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return view('auth.two_factor_enroll')->with('barcode_obj', $barcode_obj);
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}
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/**
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* Two factor code form page
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*
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* @return Redirect
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*/
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public function getTwoFactorAuth()
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{
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// Check that the user is logged in
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if (! Auth::check()) {
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return redirect()->route('login')->with('error', trans('auth/general.login_prompt'));
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}
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$user = Auth::user();
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// Check whether there is a device enrolled.
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// This *should* be handled via the \App\Http\Middleware\CheckForTwoFactor middleware
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// but we're just making sure (in case someone edited the database directly, etc)
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if (($user->two_factor_secret == '') || ($user->two_factor_enrolled != 1)) {
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return redirect()->route('two-factor-enroll');
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}
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return view('auth.two_factor');
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}
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/**
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* Two factor code submission
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*
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* @param Request $request
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*
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* @return Redirect
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*/
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public function postTwoFactorAuth(Request $request)
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{
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if (! Auth::check()) {
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return redirect()->route('login')->with('error', trans('auth/general.login_prompt'));
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}
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if (! $request->filled('two_factor_secret')) {
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return redirect()->route('two-factor')->with('error', trans('auth/message.two_factor.code_required'));
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}
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if (! $request->has('two_factor_secret')) { // TODO this seems almost the same as above?
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return redirect()->route('two-factor')->with('error', 'Two-factor code is required.');
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}
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$user = Auth::user();
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$secret = $request->input('two_factor_secret');
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if (Google2FA::verifyKey($user->two_factor_secret, $secret)) {
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$user->two_factor_enrolled = 1;
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$user->saveQuietly();
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$request->session()->put('2fa_authed', $user->id);
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return redirect()->route('home')->with('success', 'You are logged in!');
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}
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return redirect()->route('two-factor')->with('error', trans('auth/message.two_factor.invalid_code'));
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}
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/**
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* Logout page.
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*
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* @param Request $request
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*
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* @return Redirect
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*/
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public function logout(Request $request)
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{
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// Logout is only allowed with a http POST but we need to allow GET for SAML SLO
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$settings = Setting::getSettings();
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$saml = $this->saml;
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$samlLogout = $request->session()->get('saml_logout');
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$sloRedirectUrl = null;
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$sloRequestUrl = null;
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// Only allow GET if we are doing SAML SLO otherwise abort with 405
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if ($request->isMethod('GET') && !$samlLogout) {
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abort(405);
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}
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if ($saml->isEnabled()) {
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$auth = $saml->getAuth();
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$sloRedirectUrl = $request->session()->get('saml_slo_redirect_url');
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if (! empty($auth->getSLOurl()) && $settings->saml_slo == '1' && $saml->isAuthenticated() && empty($sloRedirectUrl)) {
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$sloRequestUrl = $auth->logout(null, [], $saml->getNameId(), $saml->getSessionIndex(), true, $saml->getNameIdFormat(), $saml->getNameIdNameQualifier(), $saml->getNameIdSPNameQualifier());
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}
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$saml->clearData();
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}
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if (! empty($sloRequestUrl)) {
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return redirect()->away($sloRequestUrl);
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}
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$request->session()->regenerate(true);
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if ($request->session()->has('password_hash_'.Auth::getDefaultDriver())){
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$request->session()->remove('password_hash_'.Auth::getDefaultDriver());
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}
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Auth::logout();
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if (! empty($sloRedirectUrl)) {
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return redirect()->away($sloRedirectUrl);
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}
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$customLogoutUrl = $settings->login_remote_user_custom_logout_url;
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if ($settings->login_remote_user_enabled == '1' && $customLogoutUrl != '') {
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return redirect()->away($customLogoutUrl);
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}
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return redirect()->route('login')->with(['success' => trans('auth/message.logout.success'), 'loggedout' => true]);
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}
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/**
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* Get a validator for an incoming registration request.
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*
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* @param array $data
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* @return \Illuminate\Contracts\Validation\Validator
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*/
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protected function validator(array $data)
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{
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return Validator::make($data, [
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'username' => 'required',
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'password' => 'required',
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]);
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}
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public function username()
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{
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return 'username';
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}
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/**
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* Redirect the user after determining they are locked out.
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*
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* @param \Illuminate\Http\Request $request
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* @return \Illuminate\Http\RedirectResponse
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*/
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protected function sendLockoutResponse(Request $request)
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{
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$seconds = $this->limiter()->availableIn(
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$this->throttleKey($request)
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);
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$minutes = round($seconds / 60);
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$message = \Lang::get('auth/message.throttle', ['minutes' => $minutes]);
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return redirect()->back()
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->withInput($request->only($this->username(), 'remember'))
|
|
->withErrors([$this->username() => $message]);
|
|
}
|
|
|
|
|
|
/**
|
|
* Override the lockout time and duration
|
|
*
|
|
* @param \Illuminate\Http\Request $request
|
|
* @return bool
|
|
*/
|
|
protected function hasTooManyLoginAttempts(Request $request)
|
|
{
|
|
$lockoutTime = config('auth.passwords.users.throttle.lockout_duration');
|
|
$maxLoginAttempts = config('auth.passwords.users.throttle.max_attempts');
|
|
|
|
return $this->limiter()->tooManyAttempts(
|
|
$this->throttleKey($request),
|
|
$maxLoginAttempts,
|
|
$lockoutTime
|
|
);
|
|
}
|
|
|
|
public function legacyAuthRedirect()
|
|
{
|
|
return redirect()->route('login');
|
|
}
|
|
|
|
public function redirectTo()
|
|
{
|
|
return Session::get('backUrl') ? Session::get('backUrl') : $this->redirectTo;
|
|
}
|
|
}
|