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36 lines
977 B
36 lines
977 B
#!/usr/bin/env python3 |
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import os |
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import subprocess |
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import sys |
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from urllib.parse import urlparse |
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proxy = next(os.environ[_] for _ in ("HTTP_PROXY", "HTTPS_PROXY") if _ in os.environ) |
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parsed = urlparse(proxy) |
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proxy_protocols = { |
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"http": "connect", |
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"https": "connect", |
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"socks": "5", |
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"socks5": "5", |
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"socks4": "4", |
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"socks4a": "4", |
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} |
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if parsed.scheme not in proxy_protocols: |
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raise TypeError('unsupported proxy protocol: "{}"'.format(parsed.scheme)) |
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def make_argv(): |
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yield "nc" |
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if sys.platform == 'linux': |
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# caveats: macOS built-in netcat command not supported proxy-type |
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yield "-X" # --proxy-type |
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# Supported protocols are 4 (SOCKS v4), 5 (SOCKS v5) and connect (HTTP proxy). |
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# Default SOCKS v5 is used. |
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yield proxy_protocols[parsed.scheme] |
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yield "-x" # --proxy |
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yield parsed.netloc # proxy-host:proxy-port |
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yield sys.argv[1] # host |
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yield sys.argv[2] # port |
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subprocess.call(make_argv())
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