如何在Python中使用SSH连接从远程主机发送HTTP GET请求? [英] How to send HTTP GET request from remote host using SSH connection in Python?

问题描述

我正在使用与Paramiko的SSH连接.我的代码:

I'm using an SSH connection with Paramiko. My code:

client = paramiko.SSHClient()
client.set_missing_host_key_policy(paramiko.AutoAddPolicy())
client.connect(hostname=remote_host, username=remote_user, password=remote_password,
               port=remote_port)

如何从连接的远程主机发送HTTP GET 请求(像使用代理一样使用它)?

How to send HTTP GET request from connected remote host (use it like a proxy)?

我已经根据答案找到了解决方法:

I've found solution according to the answer:

with SSHTunnelForwarder(
        ssh_address_or_host=(remote_host, remote_port),
        ssh_username=remote_user,
        ssh_password=remote_password,
        remote_bind_address=("www.python.org", 80),
        ) as tunnel:
    conn = http.client.HTTPConnection("127.0.0.1", port=tunnel.local_bind_port)
    conn.request("GET", '/')

推荐答案

有两个选项:

使用SSH服务器上可以发送HTTP请求的任何工具.例如. curl 或 wget :

Use any tool available on the SSH server that can send the HTTP request. E.g. curl or wget:

curl https://www.example.com/

并使用Paramiko执行它: Python Paramiko-运行命令

And execute it using Paramiko: Python Paramiko - Run command

此解决方案更简单，但依赖于命令-因此，它也依赖于平台.

This solution is easier, but has the dependency on the command — So it's also platform dependent.

将本地端口转发到远程HTTP服务器端口80，并使用本地Python代码连接到转发的端口.

Forward a local port to the remote HTTP server port 80 and connect to the forwarded port using your local Python code.

您将找到许多有关如何转发数据库端口的示例.像这样:启用Python通过SSH隧道连接到MySQL

You will find lot of examples how to forward a database port. Like this one: Enable Python to Connect to MySQL via SSH Tunnelling

在这种情况下，您需要执行相同的操作，只是连接HTTP客户端(例如 HTTPConnection )而不是使用数据库客户端连接到转发的端口.

In your case, you need to do the same, just instead of using a database client to connect to the forwarded port, you connect an HTTP client (like HTTPConnection).

在大多数情况下，当您想进一步连接时，数据库转发通常在SSH服务器本身( localhost / 127.0.0.1 )上结束.

Also in most cases, the database forwarding usually ends on the SSH server itself (localhost/127.0.0.1), while you want to connect further.

此解决方案更加复杂，但是没有外部依赖关系-因此它是独立于平台的.另一方面，端口转发是一种特殊特权，可以在服务器上进行限制(但通常不是).在尝试实施之前，您可以使用SSH客户端对其进行测试.

This solution is more complicated, but without external dependencies – So it's platform independent. On the other hand, the port forwarding is a special privilege, that may be restricted on the server (but usually it is not). Before trying to implement it, you can test it with your SSH client.

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