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<h2 class="post-title" itemprop="name headline">Auth 用户认证</h2>
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<p>  laravel Auth认证，自带登录，注册，api认证(高版本才有)等方式。</p>
<h4 id="auth基本配置"><a href="#auth基本配置" class="headerlink" title="auth基本配置"></a>auth基本配置</h4><p>用户认证的基本配置是config/auth.php 文件<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br></pre></td><td class="code"><pre><span class="line"><span class="string">'driver'</span> => <span class="string">'eloquent'</span>, <span class="comment">// 数据库驱动,eloquent 或 database</span></span><br><span class="line"><span class="string">'model'</span> => App\User::class, <span class="comment">// 默认用户认证模型</span></span><br><span class="line"><span class="string">'table'</span> => <span class="string">'users'</span>, <span class="comment">// 默认表名</span></span><br><span class="line"><span class="string">'password'</span> => [ <span class="comment">// 忘记密码配置</span></span><br><span class="line"> <span class="string">'email'</span> => <span class="string">'emails.password'</span>,</span><br><span class="line"> <span class="string">'table'</span> => <span class="string">'password_resets'</span>,</span><br><span class="line"> <span class="string">'expire'</span> => <span class="number">60</span>,</span><br><span class="line"> ],</span><br></pre></td></tr></table></figure></p>
<h4 id="auth服务提供者"><a href="#auth服务提供者" class="headerlink" title="auth服务提供者"></a>auth服务提供者</h4><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">register</span><span class="params">()</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> <span class="keyword">$this</span>->registerAuthenticator(); <span class="comment">// 注册用户认证者</span></span><br><span class="line"></span><br><span class="line"> <span class="comment">// 为已认证的用户，注册一个可以直接获取user信息的闭包</span></span><br><span class="line"> </span><br><span class="line"> <span class="keyword">$this</span>->registerUserResolver(); </span><br><span class="line"> <span class="comment">//操作方法权限控制</span></span><br><span class="line"> <span class="keyword">$this</span>->registerAccessGate();</span><br><span class="line"></span><br><span class="line"> <span class="comment">//为request 重新绑定可以获取user的闭包</span></span><br><span class="line"> <span class="comment">//登录之后,在任何request请求中，直接使用request()->user()即可获取</span></span><br><span class="line"> <span class="keyword">$this</span>->registerRequestRebindHandler();</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
<a id="more"></a>
<h5 id="registerAuthenticator"><a href="#registerAuthenticator" class="headerlink" title="registerAuthenticator"></a>registerAuthenticator</h5><p>①注册auth对应的单一绑定，最终返回 AuthManager类<br>②注册auth.drive 的驱动操作绑定<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">protected</span> <span class="function"><span class="keyword">function</span> <span class="title">registerAuthenticator</span><span class="params">()</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> <span class="keyword">$this</span>->app->singleton(<span class="string">'auth'</span>, <span class="function"><span class="keyword">function</span> <span class="params">($app)</span> </span>{</span><br><span class="line"></span><br><span class="line"> $app[<span class="string">'auth.loaded'</span>] = <span class="keyword">true</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> AuthManager($app);</span><br><span class="line"> });</span><br><span class="line"></span><br><span class="line"> <span class="keyword">$this</span>->app->singleton(<span class="string">'auth.driver'</span>, <span class="function"><span class="keyword">function</span> <span class="params">($app)</span> </span>{</span><br><span class="line"> <span class="keyword">return</span> $app[<span class="string">'auth'</span>]->driver();</span><br><span class="line"> });</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>举例语法 Auth::user()<br>首先 通过Auth门面的静态调用方法获取AuthManager类( 设为 $authmanager)<br>然后 执行$authmanager->user();<br><figure class="highlight scala"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br></pre></td><td class="code"><pre><span class="line"><span class="class"><span class="keyword">class</span> <span class="title">AuthManager</span> <span class="keyword">extends</span> <span class="title">Manager</span> <span class="title">//</span> <span class="title">继承了Manager</span> </span></span><br><span class="line"><span class="class">....</span></span><br><span class="line"><span class="class"><span class="title">//Manager基类的__call</span> <span class="title">方法</span></span></span><br><span class="line"><span class="class"><span class="title">public</span> <span class="title">function</span> <span class="title">__call</span>(<span class="params">$method, $parameters</span>)</span></span><br><span class="line"><span class="class"></span>{</span><br><span class="line"> <span class="keyword">return</span> call_user_func_array([$<span class="keyword">this</span>->driver(), $method], $parameters);</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>第二步调用了魔术方法,实际执行是 根据配置driver 创建对应驱动。先获取到$provider ,并传入Guard类作为其属性<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">createEloquentDriver</span><span class="params">()</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> $provider = <span class="keyword">$this</span>->createEloquentProvider();</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> Guard($provider, <span class="keyword">$this</span>->app[<span class="string">'session.store'</span>]);</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line"><span class="comment">// 获取对应的User模型, 可以最直观的理解为PDO连接句柄</span></span><br><span class="line"><span class="keyword">protected</span> <span class="function"><span class="keyword">function</span> <span class="title">createEloquentProvider</span><span class="params">()</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> $model = <span class="keyword">$this</span>->app[<span class="string">'config'</span>][<span class="string">'auth.model'</span>];</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">new</span> EloquentUserProvider(<span class="keyword">$this</span>->app[<span class="string">'hash'</span>], $model);</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>最终执行的是 new Guard ->user();<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">user</span><span class="params">()</span></span></span><br><span class="line"><span class="function"> </span>{</span><br><span class="line"> <span class="keyword">if</span> (<span class="keyword">$this</span>->loggedOut) {</span><br><span class="line"> <span class="keyword">return</span>;</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">//多次使用Auth::user(),直接返回</span></span><br><span class="line"> <span class="keyword">if</span> (! is_null(<span class="keyword">$this</span>->user)) {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">$this</span>->user;</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">// 根据session_id 获取session。从而获取登录之后</span></span><br><span class="line"> <span class="comment">//用户表的主键id，</span></span><br><span class="line"> $id = <span class="keyword">$this</span>->session->get(<span class="keyword">$this</span>->getName());</span><br><span class="line"></span><br><span class="line"> $user = <span class="keyword">null</span>;</span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span> (! is_null($id)) {</span><br><span class="line"> <span class="comment">// 如果id 存在，通过User::find($id)，获取用户信息</span></span><br><span class="line"> $user = <span class="keyword">$this</span>->provider->retrieveById($id);</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">//recaller 用于 remember_token 的使用</span></span><br><span class="line"> $recaller = <span class="keyword">$this</span>->getRecaller();</span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span> (is_null($user) && ! is_null($recaller)) {</span><br><span class="line"> $user = <span class="keyword">$this</span>->getUserByRecaller($recaller);</span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span> ($user) {</span><br><span class="line"> <span class="keyword">$this</span>->updateSession($user->getAuthIdentifier());</span><br><span class="line"></span><br><span class="line"> <span class="keyword">$this</span>->fireLoginEvent($user, <span class="keyword">true</span>);</span><br><span class="line"> }</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">//保存属性</span></span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">$this</span>->user = $user;</span><br><span class="line"> }</span><br></pre></td></tr></table></figure></p>
<h4 id="登录"><a href="#登录" class="headerlink" title="登录"></a>登录</h4><p>使用AuthenticatesAndRegistersUsers(Trait类),方便复用和方法重新<br><figure class="highlight rust"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">//AuthController</span></span><br><span class="line"> <span class="keyword">use</span> AuthenticatesAndRegistersUsers, ThrottlesLogins;</span><br><span class="line"></span><br><span class="line"><span class="comment">//AuthenticatesAndRegistersUsers</span></span><br><span class="line"><span class="class"><span class="keyword">trait</span> <span class="title">AuthenticatesAndRegistersUsers</span></span></span><br><span class="line">{</span><br><span class="line"> <span class="keyword">use</span> AuthenticatesUsers, RegistersUsers {</span><br><span class="line"> <span class="comment">//trait 方法冲突解决</span></span><br><span class="line"> AuthenticatesUsers::redirectPath insteadof RegistersUsers; </span><br><span class="line"> }</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>ThrottlesLogins类进行登录次数尝试的现在<br>在AuthenticatesUsers定义登录方法,在RegistersUsers定义注册方法<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br></pre></td><td class="code"><pre><span class="line"><span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">postLogin</span><span class="params">(Request $request)</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> <span class="keyword">$this</span>->validate($request, [</span><br><span class="line"> <span class="keyword">$this</span>->loginUsername() => <span class="string">'required'</span>, <span class="string">'password'</span> => <span class="string">'required'</span>,</span><br><span class="line"> ]);</span><br><span class="line"></span><br><span class="line"> $throttles = <span class="keyword">$this</span>->isUsingThrottlesLoginsTrait();</span><br><span class="line"> <span class="comment">// 如果有使用throttles,检查是否尝试登录次数过多</span></span><br><span class="line"> <span class="keyword">if</span> ($throttles && <span class="keyword">$this</span>->hasTooManyLoginAttempts($request)) {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">$this</span>->sendLockoutResponse($request);</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">// 从请求数据里获取username 和 password 组成的数组</span></span><br><span class="line"> $credentials = <span class="keyword">$this</span>->getCredentials($request);</span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span> (Auth::attempt($credentials, $request->has(<span class="string">'remember'</span>))) {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">$this</span>->handleUserWasAuthenticated($request, $throttles);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span> ($throttles) {</span><br><span class="line"> <span class="comment">//登录失败,增加尝试次数</span></span><br><span class="line"> <span class="keyword">$this</span>->incrementLoginAttempts($request);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> redirect(<span class="keyword">$this</span>->loginPath())</span><br><span class="line"> ->withInput($request->only(<span class="keyword">$this</span>->loginUsername(), <span class="string">'remember'</span>))</span><br><span class="line"> ->withErrors([</span><br><span class="line"> <span class="keyword">$this</span>->loginUsername() => <span class="keyword">$this</span>->getFailedLoginMessage(),</span><br><span class="line"> ]);</span><br><span class="line">}</span><br><span class="line"></span><br><span class="line"><span class="comment">//认证后的 后继操作</span></span><br><span class="line"><span class="keyword">protected</span> <span class="function"><span class="keyword">function</span> <span class="title">handleUserWasAuthenticated</span><span class="params">(Request $request, $throttles)</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> <span class="keyword">if</span> ($throttles) {</span><br><span class="line"> <span class="comment">//登录成功，清空尝试次数</span></span><br><span class="line"> <span class="keyword">$this</span>->clearLoginAttempts($request);</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">// 用户认证通过后，自定义方法</span></span><br><span class="line"> <span class="keyword">if</span> (method_exists(<span class="keyword">$this</span>, <span class="string">'authenticated'</span>)) {</span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">$this</span>->authenticated($request, Auth::user());</span><br><span class="line"> }</span><br><span class="line"> <span class="comment">// 通过 $path = $this->session->pull('url.intended', $default);</span></span><br><span class="line"> <span class="comment">// 最终登录成功跳转</span></span><br><span class="line"> <span class="keyword">return</span> redirect()->intended(<span class="keyword">$this</span>->redirectPath());</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>真正的用户登录数据的校验<br><figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// 数据校验</span></span><br><span class="line"> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">attempt</span><span class="params">(array $credentials = [], $remember = false, $login = true)</span></span></span><br><span class="line"><span class="function"></span>{ </span><br><span class="line"> <span class="keyword">$this</span>->fireAttemptEvent($credentials, $remember, $login);</span><br><span class="line"> <span class="comment">// 通过$credentials中所有字段(不含password字段)值在user表中进行查询</span></span><br><span class="line"> <span class="keyword">$this</span>->lastAttempted = $user = <span class="keyword">$this</span>->provider->retrieveByCredentials($credentials);</span><br><span class="line"> <span class="comment">//将查询到的user信息中的密码与 提交的密码进行哈希比对</span></span><br><span class="line"> <span class="keyword">if</span> (<span class="keyword">$this</span>->hasValidCredentials($user, $credentials)) {</span><br><span class="line"> <span class="keyword">if</span> ($login) {</span><br><span class="line"> <span class="keyword">$this</span>->login($user, $remember);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">true</span>;</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> <span class="keyword">false</span>;</span><br><span class="line">}</span><br><span class="line"> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">login</span><span class="params">(UserContract $user, $remember = false)</span></span></span><br><span class="line"><span class="function"></span>{ </span><br><span class="line"> <span class="comment">//更新session , 参数是user表主键值</span></span><br><span class="line"> <span class="keyword">$this</span>->updateSession($user->getAuthIdentifier());</span><br><span class="line"></span><br><span class="line"> <span class="keyword">if</span> ($remember) {</span><br><span class="line"> <span class="comment">//创建remember_token值，并写入user表对应的字段里</span></span><br><span class="line"> <span class="keyword">$this</span>->createRememberTokenIfDoesntExist($user);</span><br><span class="line"> </span><br><span class="line"> <span class="keyword">$this</span>->queueRecallerCookie($user);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="comment">// If we have an event dispatcher instance set we will fire an event so that</span></span><br><span class="line"> <span class="comment">// any listeners will hook into the authentication events and run actions</span></span><br><span class="line"> <span class="comment">// based on the login and logout events fired from the guard instances.</span></span><br><span class="line"> <span class="keyword">$this</span>->fireLoginEvent($user, $remember);</span><br><span class="line"></span><br><span class="line"> <span class="keyword">$this</span>->setUser($user);</span><br><span class="line">}</span><br></pre></td></tr></table></figure></p>
<p>重点看下 <font color="red">$this->queueRecallerCookie($user);</font> 这里会把remember_token 存入CookieJar的队列属性中,在kernel的中间件AddQueuedCookiesToResponse里会为响应头添加缓存，除非清楚浏览器缓存，否则一直存在(因为默认是以forever方式存储的).</p>
<figure class="highlight php"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br></pre></td><td class="code"><pre><span class="line"><span class="comment">// AddQueuedCookiesToResponse 中间件</span></span><br><span class="line"> <span class="keyword">public</span> <span class="function"><span class="keyword">function</span> <span class="title">handle</span><span class="params">($request, Closure $next)</span></span></span><br><span class="line"><span class="function"></span>{</span><br><span class="line"> $response = $next($request);</span><br><span class="line"></span><br><span class="line"> <span class="comment">//此时响应数据已拿到，只需为reponse头设置cookie 信息</span></span><br><span class="line"> <span class="keyword">foreach</span> (<span class="keyword">$this</span>->cookies->getQueuedCookies() <span class="keyword">as</span> $cookie) {</span><br><span class="line"> $response->headers->setCookie($cookie);</span><br><span class="line"> }</span><br><span class="line"></span><br><span class="line"> <span class="keyword">return</span> $response;</span><br><span class="line">}</span><br></pre></td></tr></table></figure>
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