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HomeBackend DevelopmentPHP Tutorial使用 Github 等第三方帐号登录 Laravel 应用

Laravel 的 Socialite 使得使用 Facebook、Twitter、Google、LinkedIn、GitHub 以及 Bitbucket 等第三方帐号登录 Larave 应用变得很容易实现。你可以把它们与已存在的用户进行第三方连接,也可以作为主登录机制。虽然 官方文档 中给出了一些步骤,但是很多朋友看完后依然不知道具体如何实现登录功能。今天我们以 Github 为例,详细列出其实现方法。

1. 安装 Socialite

通过 Composer 命令行安装:

$ composer require laravel/socialite

然后把其注册到 config/app.php 中:

'providers' => [    ...    Laravel\Socialite\SocialiteServiceProvider::class,    ...],'aliases' => [    ...    'Socialite' => Laravel\Socialite\Facades\Socialite::class,    ...],

现在 Socialite 已经注册到你的应用中了,下面我们来设置证书。

2. 创建 Github 应用

首先,你需要拥有一个 Github 帐号,之后到“Setting”–“OAuth applications”–“Developer applications”–“ Register new application ”,创建一个 OAuth 应用:

之后填写应用的信息:

其中的“ Authorization callback URL ”我们这里设置为“http://your-domain-name.com/auth/github/callback”,你需要根据你的应用实际来填写。创建完成之后在应用的详细页面就可以看到“ Client ID ”和“ Client Secret ”的值了。

3. 服务配置

打开 config/services.php 文件,在其中添加 Github 授权信息:

'github' => [    'client_id' => 'your-github-app-id',    'client_secret' => 'your-github-app-secret',    'redirect' => 'http://your-callback-url',],

把第二步创建应用的“ Client ID ”和“ Client Secret ”以及“ Authorization callback URL ”的值填到上面。当然,你也可以在 .env 文件中定义三个环境变量,然后在  config/services.php 中通过 env() 函数获取。

4. 定义路由

routes.php 中添加下面的路由(你可以自定义为任何名称,这里为方便起见直接定义为下面的名称):

Route::get('auth/github', 'Auth\AuthController@redirectToProvider');Route::get('auth/github/callback', 'Auth\AuthController@handleProviderCallback');

下面我们来完成控制器中的这几个方法。

5. 控制器方法

在 Auth\AuthController 中添加下面方法:

public function redirectToProvider()    {        return Socialite::driver('github')->redirect();    }    public function handleProviderCallback()    {        try {            $user = Socialite::driver('github')->user();        } catch (Exception $e) {            return Redirect::to('auth/github');        }        $authUser = $this->findOrCreateUser($user);        Auth::login($authUser, true);        return redirect('/');    }    private function findOrCreateUser($githubUser)    {        if ($authUser = User::where('github_id', $githubUser->id)->first()) {            return $authUser;        }        return User::create([            'name' => $githubUser->name,            'email' => $githubUser->email,            'github_id' => $githubUser->id,            'avatar' => $githubUser->avatar        ]);    }

上面只是实现的一般方法,当然你也可以按照自己的方法来实现。首先跳转到 Github,获得用户授权后再跳转回来到,然后根据 Github ID 查找用户并登录,或者创建一个新的用户。

6. 数据库设计

我们需要修改 users Migration 以便存储一些 Github 特定的信息。Github 会给我们返回很多信息,我们这里选择其中的一些进行存储。

$table->increments('id');            $table->string('github_id')->unique();            $table->string('name');            $table->string('email');            $table->string('avatar');            $table->rememberToken();            $table->timestamps();

由于我们这里是用于演示的,所以直接更改为了上面的样子,你可以根据你的实际需求来设计。Github 为我们返回的信息大致如下:

7. User Eloquent

修改 User Eloquent Model 以便能够存储 Github 的信息:

protected $fillable = ['name', 'email', 'github_id', 'avatar'];

下面我们来看看上面的这些代码是如何具体运行的。

8. 使用

在需要登录的地方添加下面的链接,其目标地址指向我们上面添加的路由 auth/github 。

当用户点击上面的按钮的时候,会跳转到 Github 授权页面,询问用户是否运行授权,当用户允许之后,会跳转回 auth/github/callback ,也就是我们创建应用时填写的“Authorization callback URL”。

之后就会执行回调函数中的代码,登录已经存在的用户,或者创建一个新的用户并登录。

现在我们已经拥有一个经过 Laravel 授权的用户了,可以直接使用 Auth 提供的所有方法,如 Auth::check() 、 Auth:user() 等。你还可以添加一个 logout 路由来运行 Auth::logout() 方法退出登录。之后的操作就可以同使用 Laravel 自带的认证系统一样了。

以上便完成了使用 Github 帐号登录 Laravel 应用的所有步骤,其他第三方应用的实现基本类似。

参考: laravel.com , mattstauffer.co

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