라라벨 AuthenticatesUsers.php

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<?php

namespace Illuminate\Foundation\Auth;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Lang;

trait AuthenticatesUsers
{
    use RedirectsUsers;

    public function getLogin()
    {
        return $this->showLoginForm();
    }

    public function showLoginForm()
    {
        $view = property_exists($this, 'loginView')
                    ? $this->loginView : 'auth.authenticate';

        if (view()->exists($view)) {
            return view($view);
        }

        return view('auth.login');
    }

    public function postLogin(Request $request)
    {
        return $this->login($request);
    }

    public function login(Request $request)
    {
        $this->validateLogin($request);

        $throttles = $this->isUsingThrottlesLoginsTrait();

        if ($throttles && $lockedOut = $this->hasTooManyLoginAttempts($request)) {
            $this->fireLockoutEvent($request);

            return $this->sendLockoutResponse($request);
        }

        $credentials = $this->getCredentials($request);

        if (Auth::guard($this->getGuard())->attempt($credentials, $request->has('remember'))) {
            return $this->handleUserWasAuthenticated($request, $throttles);
        }

        if ($throttles && ! $lockedOut) {
            $this->incrementLoginAttempts($request);
        }

        return $this->sendFailedLoginResponse($request);
    }

    protected function validateLogin(Request $request)
    {
        $this->validate($request, [
            $this->loginUsername() => 'required', 'password' => 'required',
        ]);
    }

    protected function handleUserWasAuthenticated(Request $request, $throttles)
    {
        if ($throttles) {
            $this->clearLoginAttempts($request);
        }

        if (method_exists($this, 'authenticated')) {
            return $this->authenticated($request, Auth::guard($this->getGuard())->user());
        }

        return redirect()->intended($this->redirectPath());
    }

    protected function sendFailedLoginResponse(Request $request)
    {
        return redirect()->back()
            ->withInput($request->only($this->loginUsername(), 'remember'))
            ->withErrors([
                $this->loginUsername() => $this->getFailedLoginMessage(),
            ]);
    }

    protected function getFailedLoginMessage()
    {
        return Lang::has('auth.failed')
                ? Lang::get('auth.failed')
                : 'These credentials do not match our records.';
    }

    protected function getCredentials(Request $request)
    {
        return $request->only($this->loginUsername(), 'password');
    }

    public function getLogout()
    {
        return $this->logout();
    }

    public function logout()
    {
        Auth::guard($this->getGuard())->logout();

        return redirect(property_exists($this, 'redirectAfterLogout') ? $this->redirectAfterLogout : '/post');
    }

    public function guestMiddleware()
    {
        $guard = $this->getGuard();

        return $guard ? 'guest:'.$guard : 'guest';
    }

    public function loginUsername()
    {
        return property_exists($this, 'username') ? $this->username : 'email';
    }

    protected function isUsingThrottlesLoginsTrait()
    {
        return in_array(
            ThrottlesLogins::class, class_uses_recursive(get_class($this))
        );
    }

    protected function getGuard()
    {
        return property_exists($this, 'guard') ? $this->guard : null;
    }
}
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