配置代理后Karate调用部分开源API仍返回403错误求助

环境信息 #

• Java版本：1.8
• Maven版本：3.6.3

API调用状态 #

无法正常调用的API #

1. https://gorest.co.in/public/v2/users
2. https://reqres.in/api/users/2

可正常调用的API #

1. http://www.7timer.info/bin/astro.php?lon=113.2&lat=23.1&ac=0&unit=metric&output=json&tzshift=0
2. https://dummy.restapiexample.com/api/v1/employee/1
3. https://fakerestapi.azurewebsites.net/api/v1/Activities
4. https://randomuser.me
5. https://httpbin.org/#/HTTP_Methods/get_get
6. https://makeup-api.herokuapp.com/api/v1/products.json?brand=maybelline
7. http://numbersapi.com/random/math
8. http://jsonplaceholder.typicode.com/posts/1

Feature文件内容 #

Feature: Sample API Test
      Scenario: get user details with path parameter
          * configure proxy = 'http:myproxy:8080'
          * configure ssl = true;
          Given header Content-Type = 'application/json'
          And header Accept = 'application/json'
          When url 'https://reqres.in/api/users/2'
          When method GET
          Then status 200
          * print 'result: ',response

POM依赖 #

<!-- https://mvnrepository.com/artifact/com.intuit.karate/karate-junit4 -->
    <dependency>
        <groupId>com.intuit.karate</groupId>
        <artifactId>karate-junit4</artifactId>
        <version>1.3.1</version>
        <scope>test</scope>
    </dependency>

    <!-- https://mvnrepository.com/artifact/net.masterthought/cucumber-reporting -->
    <dependency>
        <groupId>net.masterthought</groupId>
        <artifactId>cucumber-reporting</artifactId>
        <version>5.7.4</version>
    </dependency>

错误信息 #

status code was: 403, expected: 200, response time in milliseconds: 464, url: https://reqres.in/api/users/2, response: 
    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
    <title>Could not connect to server</title>
    <link rel="stylesheet" href="https://reqres.in/%24%24%24%26%3f%26%3f%24%24%24?cmd=get_file&arg=block_style.css&sid=90709ACBF52361FBE728AFA2A8AE02A868DB9E86" type="text/css">
    </head>
    <body>
    
    <div id="pagecontainer">
            <img class="icon" src="https://reqres.in/%24%24%24%26%3f%26%3f%24%24%24?cmd=get_file&arg=images/block.png&sid=7B320C491CF4319D6D2C8C17BA9FE6DA2ECA16B8"> <!--Icon for block type-->
            <h1>Could not connect to server</h1>
    
            <div class="row">
                    <p class="label">Overview:</p>
                    <p class="item">Could not connect to reqres.in </p>
            </div>
            <div class="row">
                    <p class="label">Details:</p>
                    <p class="item">Peer suddenly disconnected</p>
            </div>
    
            <div id="options">
                    <p class="label">Options:</p>
                    <form action=""><input type="button" class="button" onclick="history.back();" value="   Go Back   "></form><p class="item">Click to return to the previous page:</p>
                    <p class="last-item">Make sure the URL is correct, then try to reload the page.</p>
            </div>
    
            <div><img class="logo" title="Forcepoint" src="https://reqres.in/%24%24%24%26%3f%26%3f%24%24%24?cmd=get_file&arg=images/wslogo_block_page.png&sid=46D63EFDD3551F01875504354D49CF431151A9BE" alt="Forcepoint Logo">
                    <div style="clear: both; overflow: hidden; height:1px;"></div>
            </div>
    </div>
    
    </body>
    </html>

排查建议 #

1. 修正代理配置格式：当前代理配置'http:myproxy:8080'缺少//，正确格式应为'http://myproxy:8080'，格式错误会导致HTTPS请求代理解析异常，是部分API失败的常见原因。

2. 添加代理认证（若需要）：如果企业代理要求用户名密码验证，需更新代理配置：

* configure proxy = { uri: 'http://myproxy:8080', username: 'your-proxy-user', password: 'your-proxy-pass' }

3. 调整SSL信任设置：部分HTTPS API可能因代理证书未被信任导致失败，可临时设置信任所有证书测试：

* configure ssl = { trustAll: true }

注意：生产环境不建议使用此配置，需导入企业代理的根证书到JVM信任库。

4. 简化请求头：GET请求无需设置Content-Type头，移除该头后重试，避免部分API对请求头的严格校验：

Given header Accept = 'application/json'

5. 检查企业安全网关拦截：错误信息中出现Forcepoint标识，说明请求被企业安全网关拦截，需联系IT部门将目标API加入白名单。

内容的提问来源于stack exchange，提问作者Vijay Gupta