Web静态服务器–显示需要的页面,正则表达式
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 就是header里的内容,即[
# 'GET /index.html HTTP/1.1',
# 'Host: 127.0.0.1:7890',
# 'User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:74.0) Gecko/20100101 Firefox/74.0',
# 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
# 'Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2',
# 'Accept-Encoding: gzip, deflate',
# 'Connection: keep-alive',
# 'Upgrade-Insecure-Requests: 1',
# 'Cache-Control: max-age=0', '']
request_lines = request.splitlines() # 这里把request的内容按行切割成列表
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])
# 【^/】表示非斜杠,即“index"之前的GET 等,
# 然后(/【^ 】)的 / 表示/index的那个斜杠,
# 【^ 】表示非空,一直匹配到HTTP前那个空格停止
# request_lines[0] 表示request_lines的第一个元素(header第一行),即GET /index.html....
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()
request_lines = request.splitlines() # 这里把request的内容按行切割成列表
# GET /index.html HTTP/1.1
# get post put del
file_name = ""
ret = re.match(r"[^/]+(/[^ ]*)", request_lines[0])
# 【^/】表示非斜杠,即“index"之前的GET 等,
# 然后(/【^ 】)的 / 表示/index的那个斜杠,
# 【^ 】表示非空,一直匹配到HTTP前那个空格停止
# request_lines[0] 表示request_lines的第一个元素(header第一行),即GET /index.html....