如何将Proximo用作Java中的SOCKS代理？

问题描述

我有一个在Heroku上运行的Java应用程序，需要访问Salesforce，它只允许来自您白名单的IP的API访问。 是一款Heroku插件，可让您代理应用程序通过一个应用程序完成的所有请求带有静态IP的服务器。不幸的是，这样做的标准方式 - - 为我的应用程序的网络服务器创建一个监听套接字， 。

如何在我的Java应用程序中使用Proximo作为SOCKS代理？

解决方案 div>

我查看了，它们以前面提到的包装的形式发布，并看到它将作为SOCKS代理连接到Proximo服务器。这在Java中很容易实现，所以我将它添加到我的应用程序的启动中（Groovy语法）：

  URL proximo = new URL（System.getenv（'PROXIMO_URL'）
字符串userInfo = proximo.getUserInfo（）
字符串user = userInfo.substring（0，userInfo.indexOf（'：'））
字符串密码= userInfo.substring（userInfo.indexOf（'：'）+ 1）
 System.setProperty（'socksProxyHost'，proximo.getHost（））
 System.setProperty（'socksProxyPort'，'1080'） 
 Authenticator.setDefault（新的ProxyAuth（用户，密码））
  

其他地方的内部类：

 私有类ProxyAuth扩展了Authenticator {
 private PasswordAuthentication passwordAuthentication; 
 
私人ProxyAuth（字符串用户，字符串密码）{
 passwordAuthentication = new PasswordAuthentication（user，password.toCharArray（））
} 
 $ b $ @覆盖
 protected PasswordAuthenticatio getPasswordAuthentication（）{
返回passwordAuthentication; 
} 
} 
  

I've got a Java app that runs on Heroku that needs to access Salesforce, which only allows API access from IPs that you whitelist. Proximo is a Heroku add-on that allows you to proxy all of the requests your app makes through a single server with a static IP. Unfortunately, the standard way of doing this—running your app within Proximo's wrapper—mucks up the creating of a listening socket for my app's webserver, as it seems to for a number of folks.

How can I use Proximo as a SOCKS proxy in my Java application?

解决方案

I looked that stacklet that they distribute as the aforementioned wrapper and saw that it connects to the Proximo server as a SOCKS proxy. That's easy to do in Java, so I added this to the startup of my app (Groovy syntax):

URL proximo = new URL(System.getenv('PROXIMO_URL')
String userInfo = proximo.getUserInfo()
String user = userInfo.substring(0, userInfo.indexOf(':'))
String password = userInfo.substring(userInfo.indexOf(':') + 1)
System.setProperty('socksProxyHost', proximo.getHost())
System.setProperty('socksProxyPort', '1080')
Authenticator.setDefault(new ProxyAuth(user, password))

With that ProxyAuth being an inner class elsewhere:

private class ProxyAuth extends Authenticator {
    private PasswordAuthentication passwordAuthentication;

    private ProxyAuth(String user, String password) {
        passwordAuthentication = new PasswordAuthentication(user, password.toCharArray())
    }

    @Override
    protected PasswordAuthentication getPasswordAuthentication() {
        return passwordAuthentication;
    }
}

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