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【Python】打造自己的HTTP server

article 2025/2/22 22:59:58

词汇汇总

CRLF 指的是换行和回车\r\n

教程

./your_program.sh #启动自己的服务

curl -v http://localhost:4221#开启另一个终端 测试

HTTP response
An HTTP response is made up of three parts, each separated by a CRLF (\r\n):
Status line.
Zero or more headers, each ending with a CRLF.
Optional response body.
先来一个简单的，只包含状态行。

// Status line
HTTP/1.1  // HTTP version
200       // Status code
OK        // Optional reason phrase
\r\n      // CRLF that marks the end of the status line

// Headers (empty)
\r\n      // CRLF that marks the end of the headers

// Response body (empty)

#main.py
import socket  # noqa: F401

def main():
    # You can use print statements as follows for debugging, they'll be visible when running tests.
    print("Logs from your program will appear here!")

    # Uncomment this to pass the first stage
    #
    server_socket = socket.create_server(("localhost", 4221), reuse_port=True)
    server_socket.accept() # wait for client
    server_socket.accept()[0].sendall(b"HTTP/1.1 200 OK\r\n\r\n")

if __name__ == "__main__":
    main()

#your_program.sh
#通过执行./your_program.sh执行这个文件
#!/bin/sh
#
# Use this script to run your program LOCALLY.
#
# Note: Changing this script WILL NOT affect how CodeCrafters runs your program.
#
# Learn more: https://codecrafters.io/program-interface

set -e # Exit early if any commands fail

# Copied from .codecrafters/run.sh
#
# - Edit this to change how your program runs locally
# - Edit .codecrafters/run.sh to change how your program runs remotely
exec pipenv run python3 -m app.main "$@"