Python实现http协议、http服务器（1）

文章目录

1.实现简单的http服务器2.设定套接字选项3.分会inde.html页面4.根据用户需求返回相应的页面

1.实现简单的http服务器

import socket def service_client(new_socket): """为这个客户端返回数据""" # 1. 接收浏览器发送过来的请求 ，即http请求 # GET / HTTP/1.1 # ..... request = new_socket.recv(1024) print(request) # 2. 返回http格式的数据，给浏览器 # 2.1 准备发送给浏览器的数据---header response = "HTTP/1.1 200 OK\r\n" response += "\r\n" # 2.2 准备发送给浏览器的数据---boy response += "hahahhah" new_socket.send(response.encode("utf-8")) # 关闭套接字 new_socket.close() def main(): """用来完成整体的控制""" # 1. 创建套接字 tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # 2. 绑定 tcp_server_socket.bind(("", 7890)) # 3. 变为监听套接字 tcp_server_socket.listen(128) while True: # 4. 等待新客户端的链接 new_socket, client_addr = tcp_server_socket.accept() # 5. 为这个客户端服务 service_client(new_socket) # 关闭监听套接字 tcp_server_socket.close() if __name__ == "__main__": main()

2.设定套接字选项

import socket def service_client(new_socket): """为这个客户端返回数据""" # 1. 接收浏览器发送过来的请求 ，即http请求 # GET / HTTP/1.1 # ..... request = new_socket.recv(1024) print(request) # 2. 返回http格式的数据，给浏览器 # 2.1 准备发送给浏览器的数据---header response = "HTTP/1.1 200 OK\r\n" response += "\r\n" # 2.2 准备发送给浏览器的数据---boy response += "hahahhah" new_socket.send(response.encode("utf-8")) # 关闭套接字 new_socket.close() def main(): """用来完成整体的控制""" # 1. 创建套接字 tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # 2. 绑定 tcp_server_socket.bind(("", 7890)) # 3. 变为监听套接字 tcp_server_socket.listen(128) while True: # 4. 等待新客户端的链接 new_socket, client_addr = tcp_server_socket.accept() # 5. 为这个客户端服务 service_client(new_socket) # 关闭监听套接字 tcp_server_socket.close() if __name__ == "__main__": main()

3.分会inde.html页面

import socket def service_client(new_socket): """为这个客户端返回数据""" # 1. 接收浏览器发送过来的请求 ，即http请求 # GET / HTTP/1.1 # ..... request = new_socket.recv(1024) print(">>>"*50) print(request) # 2. 返回http格式的数据，给浏览器 # 2.1 准备发送给浏览器的数据---header response = "HTTP/1.1 200 OK\r\n" response += "\r\n" # 2.2 准备发送给浏览器的数据---boy # response += "hahahhah" f = open("./html/index.html", "rb") html_content = f.read() f.close() # 将response header发送给浏览器 new_socket.send(response.encode("utf-8")) # 将response body发送给浏览器 new_socket.send(html_content) # 关闭套接 new_socket.close() def main(): """用来完成整体的控制""" # 1. 创建套接字 tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # 2. 绑定 tcp_server_socket.bind(("", 7890)) # 3. 变为监听套接字 tcp_server_socket.listen(128) while True: # 4. 等待新客户端的链接 new_socket, client_addr = tcp_server_socket.accept() # 5. 为这个客户端服务 service_client(new_socket) # 关闭监听套接字 tcp_server_socket.close() if __name__ == "__main__": main()

4.根据用户需求返回相应的页面

import socket import re def service_client(new_socket): """为这个客户端返回数据""" # 1. 接收浏览器发送过来的请求 ，即http请求 # GET / HTTP/1.1 # ..... request = new_socket.recv(1024).decode("utf-8") # print(">>>"*50) # print(request) request_lines = request.splitlines() print("") print(">"*20) print(request_lines) # GET /index.html HTTP/1.1 # get post put del file_name = "" ret = re.match(r"[^/]+(/[^ ]*)", request_lines[0]) if ret: file_name = ret.group(1) # print("*"*50, file_name) if file_name == "/": file_name = "/index.html" # 2. 返回http格式的数据，给浏览器 try: f = open("./html" + file_name, "rb") except: response = "HTTP/1.1 404 NOT FOUND\r\n" response += "\r\n" response += "------file not found-----" new_socket.send(response.encode("utf-8")) else: html_content = f.read() f.close() # 2.1 准备发送给浏览器的数据---header response = "HTTP/1.1 200 OK\r\n" response += "\r\n" # 2.2 准备发送给浏览器的数据---boy # response += "hahahhah" # 将response header发送给浏览器 new_socket.send(response.encode("utf-8")) # 将response body发送给浏览器 new_socket.send(html_content) # 关闭套接 new_socket.close() def main(): """用来完成整体的控制""" # 1. 创建套接字 tcp_server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) tcp_server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) # 2. 绑定 tcp_server_socket.bind(("", 7890)) # 3. 变为监听套接字 tcp_server_socket.listen(128) while True: # 4. 等待新客户端的链接 new_socket, client_addr = tcp_server_socket.accept() # 5. 为这个客户端服务 service_client(new_socket) # 关闭监听套接字 tcp_server_socket.close() if __name__ == "__main__": main()