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A small Python TCP reverse tunnel compatible with common frp/rathole config subsets.

Project description

py-frp

一个小型 Python 生态内网穿透工具,设计上参考 frp/rathole 的“服务端公网监听 + 客户端反向拨入”模型。当前版本专注 TCP 端口映射,支持服务端、客户端、frp 常见 TOML/INI 配置子集,以及 rathole 常见 TOML 配置子集。

安装

从 PyPI 安装:

pip install py-simple-nat-tunnel

从源码安装:

pip install .

开发模式安装:

pip install -e .

安装后会得到这些命令:

py-frp --version
py-frp server -c examples/frps.toml
py-frp client -c examples/frpc.toml
py-frps -c examples/frps.toml
py-frpc -c examples/frpc.toml

Windows 上如果提示 scripts 目录不在 PATH,也可以直接用:

python -m py_frp server -c examples/frps.toml
python -m py_frp client -c examples/frpc.toml

快速开始

服务端公网机器:

py-frp server -c examples/frps.toml

客户端内网机器:

py-frp client -c examples/frpc.toml

examples/frpc.toml 默认把客户端的 127.0.0.1:22 暴露到服务端的 0.0.0.0:6000。启动后从外部访问:

ssh -p 6000 user@your-server

frp 配置子集

服务端 frps.toml

bindPort = 7000

[auth]
token = "change-me"

客户端 frpc.toml

serverAddr = "your-server"
serverPort = 7000

[auth]
token = "change-me"

[[proxies]]
name = "ssh"
type = "tcp"
localIP = "127.0.0.1"
localPort = 22
remotePort = 6000

也支持旧版 frp INI 的 [common] 和 TCP proxy section:

[common]
server_addr = your-server
server_port = 7000
token = change-me

[ssh]
type = tcp
local_ip = 127.0.0.1
local_port = 22
remote_port = 6000

rathole 配置子集

服务端:

[server]
bind_addr = "0.0.0.0:2333"
default_token = "change-me"

[server.services.ssh]
bind_addr = "0.0.0.0:6000"

客户端:

[client]
remote_addr = "your-server:2333"
default_token = "change-me"

[client.services.ssh]
local_addr = "127.0.0.1:22"

提权

服务端启动时如果配置里有小于 1024 的监听端口,默认会通过 py-admin-launch 尝试提权一次。也可以显式控制:

py-frp server -c frps.toml --elevate
py-frp server -c frps.toml --no-auto-elevate

实现上会在重启命令后追加内部标记,保证最多只尝试一次,不会循环弹出提权请求。

当前范围

已支持:

  • TCP 反向端口映射
  • 多服务/多 proxy
  • token 鉴权
  • frp TOML 和 legacy INI 的常见 TCP 配置
  • rathole TOML 的常见 TCP 配置
  • pip install . 一键安装和 console scripts

暂不支持:

  • UDP
  • HTTP/HTTPS vhost
  • frp 插件、负载均衡、STCP/XTCP
  • rathole Noise/TLS 加密传输
  • 多路复用;当前每个公网连接会建立一条独立 tunnel TCP

测试

python -m unittest discover -s tests -v

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