Integration test client #5
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| def find_free_port() -> int: | ||
| """Find a free port on localhost.""" | ||
| with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: | ||
| s.bind(('', 0)) |
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Binding a socket to all network interfaces Medium test
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AI 5 months ago
To fix the problem, change the socket binding in the find_free_port() function from s.bind(('', 0)) to s.bind(('127.0.0.1', 0)). This ensures the socket is only bound to the local loopback interface, preventing any possibility of the socket being accessible from external hosts, even for the brief moment it is open. No other changes are required, as the rest of the function logic remains the same. The change should be made in the tests/testclient.py file, specifically in the find_free_port() function.
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1
tests/testclient.py
| @@ -111,3 +111,3 @@ | ||
| with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s: | ||
| s.bind(('', 0)) | ||
| s.bind(('127.0.0.1', 0)) | ||
| s.listen(1) |
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