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+---
+title: Proxy-Authorization
+slug: Web/HTTP/Headers/Proxy-Authorization
+tags:
+ - 请求首部
+ - 身份验证
+ - 首部
+translation_of: Web/HTTP/Headers/Proxy-Authorization
+---
+<div>{{HTTPSidebar}}</div>
+
+<p><strong><code>Proxy-Authorization</code></strong> 是一个请求首部,其中包含了用户代理提供给代理服务器的用于身份验证的凭证。这个首部通常是在服务器返回了 {{HTTPStatus("407")}} <code>Proxy Authentication Required</code> 响应状态码及 {{HTTPHeader("Proxy-Authenticate")}} 首部后发送的。</p>
+
+<table class="properties">
+ <tbody>
+ <tr>
+ <th scope="row">Header type</th>
+ <td>{{Glossary("Request header")}}</td>
+ </tr>
+ <tr>
+ <th scope="row">{{Glossary("Forbidden header name")}}</th>
+ <td>no</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="语法">语法</h2>
+
+<pre class="syntaxbox">Proxy-Authorization: &lt;type&gt; &lt;credentials&gt;</pre>
+
+<h2 id="指令">指令</h2>
+
+<dl>
+ <dt>&lt;type&gt;</dt>
+ <dd><a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Authentication#Authentication_schemes">身份验证类型</a>。一个常见的类型是 <a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Authentication#Basic_authentication_scheme">"基本验证"。</a>IANA 机构维护了 <a href="http://www.iana.org/assignments/http-authschemes/http-authschemes.xhtml">一系列的身份验证机制</a>。</dd>
+ <dt>&lt;credentials&gt;</dt>
+ <dd>凭证的构成方式如下:
+ <ul>
+ <li>将用户名和密码用冒号拼接(aladdin:opensesame)。</li>
+ <li>将拼接生成的字符串使用 <a href="/en-US/docs/Web/API/WindowBase64/Base64_encoding_and_decoding">base64</a> 编码方式进行编码(YWxhZGRpbjpvcGVuc2VzYW1l)。</li>
+ </ul>
+
+ <div class="note">
+ <p><strong>注意:</strong> Base64 编码方式不是用来加密或者获取摘要的!这种方法的安全性相当于将凭证使用明文发送(base64 是一种可逆编码方式)。在使用基本身份验证方式的时候推荐与 HTTPS 搭配使用。</p>
+ </div>
+ </dd>
+</dl>
+
+<h2 id="示例">示例</h2>
+
+<pre>Proxy-Authorization: Basic YWxhZGRpbjpvcGVuc2VzYW1l
+</pre>
+
+<h2 id="规范">规范</h2>
+
+<table class="standard-table">
+ <tbody>
+ <tr>
+ <th scope="col">Specification</th>
+ <th scope="col">Title</th>
+ </tr>
+ <tr>
+ <td>{{RFC("7235", "Proxy-Authorization", "4.4")}}</td>
+ <td>HTTP/1.1: Authentication</td>
+ </tr>
+ <tr>
+ <td>{{RFC("7617")}}</td>
+ <td>The 'Basic' HTTP Authentication Scheme</td>
+ </tr>
+ </tbody>
+</table>
+
+<h2 id="相关内容">相关内容</h2>
+
+<ul>
+ <li><a href="/en-US/docs/Web/HTTP/Authentication">HTTP authentication</a></li>
+ <li>{{HTTPHeader("Proxy-Authenticate")}}</li>
+ <li>{{HTTPHeader("WWW-Authenticate")}}</li>
+ <li>{{HTTPHeader("Authorization")}}</li>
+ <li>{{HTTPStatus("401")}}, {{HTTPStatus("403")}}, {{HTTPStatus("407")}}</li>
+</ul>