Web静态服务器

Web静态服务器-1-显示固定的页面

#coding=utf-8

import socket

def handle_client(client_socket):

"为一个客户端进行服务"

recv_data = client_socket.recv(1024).decode("utf-8")

request_header_lines = recv_data.splitlines()

for line in request_header_lines:

print(line)

# 组织相应 头信息(header)

response_headers = "HTTP/1.1 200 OK\r\n" # 200表示找到这个资源

response_headers += "\r\n" # 用一个空的行与body进行隔开

# 组织 内容(body)

response_body = "hello world"

response = response_headers + response_body

client_socket.send(response.encode("utf-8"))

client_socket.close()

def main():

"作为程序的主控制入口"

server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 设置当服务器先close 即服务器端4次挥手之后资源能够立即释放,这样就保证了,下次运行程序时 可以立即绑定7788端口

server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

server_socket.bind(("", 7788))

server_socket.listen(128)

while True:

client_socket, client_addr = server_socket.accept()

handle_client(client_socket)

if __name__ == "__main__":

main()

服务器端

客户端

Web静态服务器-2-显示需要的页面

#coding=utf-8

import socket

import re

def handle_client(client_socket):

"为一个客户端进行服务"

recv_data = client_socket.recv(1024).decode('utf-8', errors="ignore")

request_header_lines = recv_data.splitlines()

for line in request_header_lines:

print(line)

http_request_line = request_header_lines[0]

get_file_name = re.match("[^/]+(/[^ ]*)", http_request_line).group(1)

print("file name is ===>%s" % get_file_name) # for test

# 如果没有指定访问哪个页面。例如index.html

# GET / HTTP/1.1

if get_file_name == "/":

get_file_name = DOCUMENTS_ROOT + "/index.html"

else:

get_file_name = DOCUMENTS_ROOT + get_file_name

print("file name is ===2>%s" % get_file_name) #for test

try:

f = open(get_file_name, "rb")

except IOError:

# 404表示没有这个页面

response_headers = "HTTP/1.1 404 not found\r\n"

response_headers += "\r\n"

response_body = "====sorry ,file not found===="

else:

response_headers = "HTTP/1.1 200 OK\r\n"

response_headers += "\r\n"

response_body = f.read()

f.close()

finally:

# 因为头信息在组织的时候,是按照字符串组织的,不能与以二进制打开文件读取的数据合并,因此分开发送

# 先发送response的头信息

client_socket.send(response_headers.encode('utf-8'))

# 再发送body

client_socket.send(response_body)

client_socket.close()

def main():

"作为程序的主控制入口"

server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

server_socket.bind(("", 7788))

server_socket.listen(128)

while True:

client_socket, clien_cAddr = server_socket.accept()

handle_client(client_socket)

#这里配置服务器

DOCUMENTS_ROOT = "./html"

if __name__ == "__main__":

main()

服务器端

客户端

Web静态服务器-3-多进程

#coding=utf-8

import socket

import re

import multiprocessing

class WSGIServer(object):

def __init__(self, server_address):

# 创建一个tcp套接字

self.listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 允许立即使用上次绑定的port

self.listen_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

# 绑定

self.listen_socket.bind(server_address)

# 变为被动,并制定队列的长度

self.listen_socket.listen(128)

def serve_forever(self):

"循环运行web服务器,等待客户端的链接并为客户端服务"

while True:

# 等待新客户端到来

client_socket, client_address = self.listen_socket.accept()

print(client_address) # for test

new_process = multiprocessing.Process(target=self.handleRequest, args=(client_socket,))

new_process.start()

# 因为子进程已经复制了父进程的套接字等资源,所以父进程调用close不会将他们对应的这个链接关闭的

client_socket.close()

def handleRequest(self, client_socket):

"用一个新的进程,为一个客户端进行服务"

recv_data = client_socket.recv(1024).decode('utf-8')

print(recv_data)

requestHeaderLines = recv_data.splitlines()

for line in requestHeaderLines:

print(line)

request_line = requestHeaderLines[0]

get_file_name = re.match("[^/]+(/[^ ]*)", request_line).group(1)

print("file name is ===>%s" % get_file_name) # for test

if get_file_name == "/":

get_file_name = DOCUMENTS_ROOT + "/index.html"

else:

get_file_name = DOCUMENTS_ROOT + get_file_name

print("file name is ===2>%s" % get_file_name) # for test

try:

f = open(get_file_name, "rb")

except IOError:

response_header = "HTTP/1.1 404 not found\r\n"

response_header += "\r\n"

response_body = "====sorry ,file not found===="

else:

response_header = "HTTP/1.1 200 OK\r\n"

response_header += "\r\n"

response_body = f.read()

f.close()

finally:

client_so

Web静态服务器-4-多线程

#coding=utf-8

import socket

import re

import threading

class WSGIServer(object):

def __init__(self, server_address):

# 创建一个tcp套接字

self.listen_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 允许立即使用上次绑定的port

self.listen_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

# 绑定

self.listen_socket.bind(server_address)

# 变为被动,并制定队列的长度

self.listen_socket.listen(128)

def serve_forever(self):

"循环运行web服务器,等待客户端的链接并为客户端服务"

while True:

# 等待新客户端到来

client_socket, client_address = self.listen_socket.accept()

print(client_address)

new_process = threading.Thread(target=self.handleRequest, args=(client_socket,))

new_process.start()

# 因为线程是共享同一个套接字,所以主线程不能关闭,否则子线程就不能再使用这个套接字了

# client_socket.close()

def handleRequest(self, client_socket):

"用一个新的进程,为一个客户端进行服务"

recv_data = client_socket.recv(1024).decode('utf-8')

print(recv_data)

requestHeaderLines = recv_data.splitlines()

for line in requestHeaderLines:

print(line)

request_line = requestHeaderLines[0]

get_file_name = re.match("[^/]+(/[^ ]*)", request_line).group(1)

print("file name is ===>%s" % get_file_name) # for test

if get_file_name == "/":

get_file_name = DOCUMENTS_ROOT + "/index.html"

else:

get_file_name = DOCUMENTS_ROOT + get_file_name

print("file name is ===2>%s" % get_file_name) # for test

try:

f = open(get_file_name, "rb")

except IOError:

response_header = "HTTP/1.1 404 not found\r\n"

response_header += "\r\n"

response_body = "====sorry ,file not found===="

else:

response_header = "HTTP/1.1 200 OK\r\n"

response_header += "\r\n"

response_body = f.read()

f.close()

finally:

client_socket.send(response_header.enc

Web静态服务器-5-非堵塞模式

单进程非堵塞 模型

#coding=utf-8

from socket import *

import time

# 用来存储所有的新链接的socket

g_socket_list = list()

def main():

server_socket = socket(AF_INET, SOCK_STREAM)

server_socket.setsockopt(SOL_SOCKET, SO_REUSEADDR , 1)

server_socket.bind(('', 7890))

server_socket.listen(128)

# 将套接字设置为非堵塞

# 设置为非堵塞后,如果accept时,恰巧没有客户端connect,那么accept会

# 产生一个异常,所以需要try来进行处理

server_socket.setblocking(False)

while True:

# 用来测试

time.sleep(0.5)

try:

newClientInfo = server_socket.accept()

except Exception as result:

pass

else:

print("一个新的客户端到来:%s" % str(newClientInfo))

newClientInfo[0].setblocking(False) # 设置为非堵塞

g_socket_list.append(newClientInfo)

for client_socket, client_addr in g_socket_list:

try:

recvData = client_socket.recv(1024)

if recvData:

print('recv[%s]:%s' % (str(client_addr), recvData))

else:

print('[%s]客户端已经关闭' % str(client_addr))

client_socket.close()

g_socket_list.remove((client_socket,client_addr))

except Exception as result:

pass

print(g_socket_list) # for test

if __name__ == '__main__':

main()

web静态服务器-单进程非堵塞

import time

import socket

import sys

import re

class WSGIServer(object):

"""定义一个WSGI服务器的类"""

def __init__(self, port, documents_root):

# 1. 创建套接字

self.server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# 2. 绑定本地信息

self.server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

self.server_socket.bind(("", port))

# 3. 变为监听套接字

self.server_socket.listen(128)

self.server_socket.setblocking(False)

self.client_socket_list = list()

self.documents_root = documents_root

def run_forever(self):

"""运行服务器"""

# 等待对方链接

while True:

# time.sleep(0.5) # for test

try:

new_socket, new_addr = self.server_socket.accept()

except Exception as ret:

print("-----1----", ret) # for test

else:

new_socket.setblocking(False)

self.client_socket_list.append(new_socket)

for client_socket in self.client_socket_list:

try:

request = client_socket.recv(1024).decode('utf-8')

except Exception as ret:

print("------2----", ret) # for test

else:

if request:

self.deal_with_request(request, client_socket)

else:

client_socket.close()

self.client_socket_list.remove(client_socket)

print(self.client_socket_list)

def deal_with_request(self, request, client_socket):

"""为这个浏览器服务器"""

if not request:

return

request_lines = request.splitlines()

for i, line in enumerate(request_lines):

print(i, line)

# 提取请求的文件(index.html)

# GET /a/b/c/d/e/index.html HTTP/1.1

ret = re.match(r"([^/]*)([^ ]+)", request_lines[0])

if ret:

print("正则提取数据:", ret.group(1))

print("正则提取数据:", ret.

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  • 原文链接http://kuaibao.qq.com/s/20180117G07L7X00?refer=cp_1026
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  • 如有侵权,请联系 yunjia_community@tencent.com 删除。

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