Python实现简单的HttpServer服务器

import socket
import sys
import getFileContent
#声明一个将要绑定的IP和端口，这里是用本地地址
server_address = ('localhost', 8080)
class WebServer():
 def run(self):
 print >>sys.stderr, 'starting up on %s port %s' % server_address
 #实例化一个Socket
 sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
 #绑定IP和端口
 sock.bind(server_address)
 #设置监听
 sock.listen(1)
 #这里首先给个死循环，其实这里是需要多线程的，再后续版本将会实现
 while True:
 #接受客户端的请求并得到请求信息和请求的端口信息
 connection, client_address = sock.accept()
 print >>sys.stderr, 'waiting for a connection'
 try:
 #获取请求信息
 data = connection.recv(1024)
 if data:
 #发送请求信息
 connection.sendall(getFileContent.getHtmlFile(data))
 finally:
 connection.close()

if __name__ == '__main__':
 server=WebServer()
 server.run()

import sys
import os

#得到要发送的数据信息
def getHtmlFile(data):
 msgSendtoClient=""
 requestType=data[0:data.find("/")].rstrip()
 #判断是GET请求还是POST请求
 if requestType=="GET":
 msgSendtoClient=responseGetRequest(data,msgSendtoClient)
 if requestType=="POST":
 msgSendtoClient=responsePostRequest(data,msgSendtoClient)
 return msgSendtoClient

#打开文件，这里不直接写，二是去取要发送的文件再写
def getFile(msgSendtoClient,file):
 for line in file:
 msgSendtoClient+=line
 return msgSendtoClient

#筛选出请求的一个方法
def getMidStr(data,startStr,endStr):
 startIndex = data.index(startStr)
 if startIndex>=0:
 startIndex += len(startStr)
 endIndex = data.index(endStr)
 return data[startIndex:endIndex]

#获取要发送数据的大小，根据HTTP协议规范，要提前指定发送的实体内容的大小
def getFileSize(fileobject):
 fileobject.seek(0,2)
 size = fileobject.tell()
 return size

#设置编码格式和文件类型
def setParaAndContext(msgSendtoClient,type,file,openFileType):
 msgSendtoClient+="Content-Type: "+type+";charset=utf-8"
 msgSendtoClient+="Content-Length: "+str(getFileSize(open(file,"r")))+"
"+"
"
 htmlFile=open(file,openFileType)
 msgSendtoClient=getFile(msgSendtoClient,htmlFile)
 return msgSendtoClient

#GET请求的返回数据
def responseGetRequest(data,msgSendtoClient):
 return responseRequest(getMidStr(data,'GET /','HTTP/1.1'),msgSendtoClient)

#POST请求的返回数据
def responsePostRequest(data,msgSendtoClient):
 return responseRequest(getMidStr(data,'POST /','HTTP/1.1'),msgSendtoClient)

#请求返回数据
def responseRequest(getRequestPath,msgSendtoClient):
 headFile=open("head.txt","r")
 msgSendtoClient=getFile(msgSendtoClient,headFile)
 if getRequestPath==" ":
 msgSendtoClient=setParaAndContext(msgSendtoClient,"text/html","index.html","r")
 else:
 rootPath=getRequestPath
 if os.path.exists(rootPath) and os.path.isfile(rootPath):
 if ".html" in rootPath:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"text/html",rootPath,"r")
 if ".css" in rootPath:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"text/css",rootPath,"r")
 if ".js" in rootPath:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"application/x-javascript",rootPath,"r")
 if ".gif" in rootPath:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"image/gif",rootPath,"rb")
 if ".doc" in rootPath:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"application/msword",rootPath,"rb")
 if ".mp4" in rootPath:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"video/mpeg4",rootPath,"rb")
 else:
 msgSendtoClient=setParaAndContext(msgSendtoClient,"application/x-javascript","file.js","r")
 return msgSendtoClient