初始化

2026-08-08 18:27:38 +08:00
parent efc150c937
commit 060eb79c09
336 changed files with 24613 additions and 15 deletions
@@ -0,0 +1,91 @@
+<?php
+
+namespace App\Http\Controllers\Auth;
+
+use App\Http\Controllers\Controller;
+use Illuminate\Http\RedirectResponse;
+use Illuminate\Http\Request;
+use Illuminate\Support\Facades\Auth;
+use Illuminate\Support\Facades\RateLimiter;
+use Illuminate\Validation\ValidationException;
+use Illuminate\View\View;
+
+class LoginController extends Controller
+{
+    // 限流参数：10 分钟内最多 5 次错误，超出后锁定至窗口结束（≈10 分钟）
+    protected const MAX_ATTEMPTS = 5;
+    protected const DECAY_SECONDS = 600;
+
+    public function show(): View
+    {
+        return view('auth.login');
+    }
+
+    public function store(Request $request): RedirectResponse
+    {
+        $key = $this->throttleKey($request);
+
+        // 锁定检查：10 分钟内错误满 5 次即锁定，提示等待时长
+        if (RateLimiter::tooManyAttempts($key, self::MAX_ATTEMPTS)) {
+            $seconds = RateLimiter::availableIn($key);
+            $request->session()->forget('captcha');
+            throw ValidationException::withMessages([
+                'email' => '登录尝试过于频繁，出于安全考虑已临时锁定。请在约 '.ceil($seconds / 60).' 分钟（'.ceil($seconds).' 秒）后重试。',
+            ]);
+        }
+
+        $credentials = $request->validate([
+            'email' => ['required', 'email'],
+            'password' => ['required', 'string'],
+            'captcha' => ['required', 'string', function ($attribute, $value, $fail) use ($request) {
+                if (strtolower(trim((string) $value)) !== strtolower((string) $request->session()->get('captcha', ''))) {
+                    $fail('图形验证码不正确，请重新输入。');
+                }
+            }],
+        ]);
+
+        if (Auth::attempt(['email' => $credentials['email'], 'password' => $credentials['password']], $request->boolean('remember'))) {
+            RateLimiter::clear($key);
+            $request->session()->forget('captcha');
+            $request->session()->regenerate();
+
+            return redirect()->intended('/');
+        }
+
+        // 失败：记录一次错误（10 分钟滚动窗口），并给出剩余次数提醒
+        RateLimiter::hit($key, self::DECAY_SECONDS);
+        $attempts = RateLimiter::attempts($key);
+        $left = max(0, self::MAX_ATTEMPTS - $attempts);
+        $request->session()->forget('captcha');
+
+        $msg = '账号或密码不正确。';
+        if ($left > 0) {
+            $msg .= "（已错误 {$attempts} 次，再错 {$left} 次将锁定 10 分钟）";
+        } else {
+            $msg .= '（错误次数过多，已锁定 10 分钟）';
+        }
+
+        return back()->withErrors([
+            'email' => $msg,
+        ])->onlyInput('email');
+    }
+
+    protected function throttleKey(Request $request): string
+    {
+        return 'login:'.strtolower($request->input('email', '')).':'.$request->ip();
+    }
+
+    /**
+     * 退出登录。定义为控制器方法而非闭包，
+     * 以保证生产环境 `php artisan route:cache` 可用。
+     */
+    public function destroy(Request $request): RedirectResponse
+    {
+        Auth::guard('web')->logout();
+
+        $request->session()->invalidate();
+        $request->session()->regenerateToken();
+
+        return redirect('/');
+    }
+}