Fix the wrong Content-Length in python-server.py for non-ascii characters. #24480
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…ters. Content-Length is the data in bytes, not len of str. We should use sys.stdin.buffer.read instead of sys.stdin.read to receive bytes. _send_message should calculate "Content-Length" from bytes, not str.
karthiknadig
added
the
bug
We should use stdin.buffer.readline instead of stdin.readline because stdin.read* and stdin.buffer.read* should be used at the same time. (stdin.read* refers the internal buffer)
karthiknadig
approved these changes
Nov 25, 2024
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Thanks for identifying the issue and providing a fix for it 🚀. We really appreciate it. Happy Coding!!! |
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Resolves: #24479
python-server.pycurrently usessys.stdin.readfor reading the input, and it receives the length instr(utf-8 string).ref: https://docs.python.org/3/library/sys.html
On the other "Content-Length" is the size in bytes, therefore we should not pass
content_lengthtosys.stdin.read. For example,print("こんにちは世界")'s length is 16 in str, but 30 in bytes.This PR have two changes.
sys.stdin.read(content_length)withsys.stdin.buffer.read(content_length).decode()._send_messagecalculate "Content-Length" from bytes, not str.By these changes, original issue #24479 can be resolved.