Web动态服务器-1

#coding=utf-8

import socket

import sys

from multiprocessing import Process

import re

class WSGIServer(object):

    addressFamily = socket.AF_INET

    socketType = socket.SOCK_STREAM

    requestQueueSize = 5

    def __init__(self, serverAddress):

        #创建一个tcp套接字

        self.listenSocket = socket.socket(self.addressFamily,self.socketType)

        #允许重复使用上次的套接字绑定的port

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

        #绑定

        self.listenSocket.bind(serverAddress)

        #变为被动，并制定队列的长度

        self.listenSocket.listen(self.requestQueueSize)

        self.servrName = "localhost"

        self.serverPort = serverAddress[1]

    def serveForever(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

            self.clientSocket, client_address = self.listenSocket.accept()

            #方法2，多进程服务器，并发服务器于多个客户端

            newClientProcess = Process(target = self.handleRequest)

            newClientProcess.start()

            #因为创建的新进程中，会对这个套接字+1，所以需要在主进程中减去依次，即调用一次close

            self.clientSocket.close()

    def setApp(self, application):

        '设置此WSGI服务器调用的应用程序入口函数'

        self.application = application

    def handleRequest(self):

        '用一个新的进程，为一个客户端进行服务'

        self.recvData = self.clientSocket.recv(2014)

        requestHeaderLines = self.recvData.splitlines()

        for line in requestHeaderLines:

            print(line)

        httpRequestMethodLine = requestHeaderLines[0]

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

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

        if getFileName[-3:] != ".py":

            if getFileName == '/':

                getFileName = documentRoot + "/index.html"

            else:

                getFileName = documentRoot + getFileName

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

            try:

                f = open(getFileName)

            except IOError:

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

                responseHeaderLines += "\r\n"

                responseBody = "====sorry ,file not found===="

            else:

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

                responseHeaderLines += "\r\n"

                responseBody = f.read()

                f.close()

            finally:

                response = responseHeaderLines + responseBody

                self.clientSocket.send(response)

                self.clientSocket.close()

        else:

            #根据接收到的请求头构造环境变量字典

            env = {}

            #调用应用的相应方法，完成动态数据的获取

            bodyContent = self.application(env, self.startResponse)

            #组织数据发送给客户端

            self.finishResponse(bodyContent)

    def startResponse(self, status, response_headers):

        serverHeaders = [

            ('Date', 'Tue, 31 Mar 2016 10:11:12 GMT'),

            ('Server', 'WSGIServer 0.2'),

        ]

        self.headers_set = [status, response_headers + serverHeaders]

    def finishResponse(self, bodyContent):

        try:

            status, response_headers = self.headers_set

            #response的第一行

            response = 'HTTP/1.1 {status}\r\n'.format(status=status)

            #response的其他头信息

            for header in response_headers:

                response += '{0}: {1}\r\n'.format(*header)

            #添加一个换行，用来和body进行分开

            response += '\r\n'

            #添加发送的数据

            for data in bodyContent:

                response += data

            self.clientSocket.send(response)

        finally:

            self.clientSocket.close()

#设定服务器的端口

serverAddr = (HOST, PORT) = '', 8888

#设置服务器静态资源的路径

documentRoot = './html'

#设置服务器动态资源的路径

pythonRoot = './wsgiPy'

def makeServer(serverAddr, application):

    server = WSGIServer(serverAddr)

    server.setApp(application)

    return server

def main():

    if len(sys.argv) < 2:

        sys.exit('请按照要求，指定模块名称:应用名称,例如 module:callable')

    #获取module:callable

    appPath = sys.argv[1]

    #根据冒号切割为module和callable

    module, application = appPath.split(':')

    #添加路径套sys.path

    sys.path.insert(0, pythonRoot)

    #动态导入module变量中指定的模块

    module = __import__(module)

    #获取module变量中指定的模块的，application变量指定的属性

    application = getattr(module, application)

    httpd = makeServer(serverAddr, application)

    print('WSGIServer: Serving HTTP on port %d ...\n'%PORT)

    httpd.serveForever()

if __name__ == '__main__':

    main()

应用程序示例

mport time

def app(environ, start_response):

    status = '200 OK'

    response_headers = [('Content-Type', 'text/plain')]

    start_response(status, response_headers)

    return [str(environ)+'==Hello world from a simple WSGI application!--->%s\n'%time.ctime()]

Web动态服务器-2-传递数据给应用

#coding=utf-8

import socket

import sys

from multiprocessing import Process

import re

class WSGIServer(object):

    addressFamily = socket.AF_INET

    socketType = socket.SOCK_STREAM

    requestQueueSize = 5

    def __init__(self, serverAddress):

        #创建一个tcp套接字

        self.listenSocket = socket.socket(self.addressFamily,self.socketType)

        #允许重复使用上次的套接字绑定的port

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

        #绑定

        self.listenSocket.bind(serverAddress)

        #变为被动，并制定队列的长度

        self.listenSocket.listen(self.requestQueueSize)

        self.servrName = "localhost"

        self.serverPort = serverAddress[1]

    def serveForever(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

            self.clientSocket, client_address = self.listenSocket.accept()

            #方法2，多进程服务器，并发服务器于多个客户端

            newClientProcess = Process(target = self.handleRequest)

            newClientProcess.start()

            #因为创建的新进程中，会对这个套接字+1，所以需要在主进程中减去依次，即调用一次close

            self.clientSocket.close()

    def setApp(self, application):

        '设置此WSGI服务器调用的应用程序入口函数'

        self.application = application

    def handleRequest(self):

        '用一个新的进程，为一个客户端进行服务'

        self.recvData = self.clientSocket.recv(2014)

        requestHeaderLines = self.recvData.splitlines()

        for line in requestHeaderLines:

            print(line)

        httpRequestMethodLine = requestHeaderLines[0]

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

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

        if getFileName[-3:] != ".py":

            if getFileName == '/':

                getFileName = documentRoot + "/index.html"

            else:

                getFileName = documentRoot + getFileName

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

            try:

                f = open(getFileName)

            except IOError:

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

                responseHeaderLines += "\r\n"

                responseBody = "====sorry ,file not found===="

            else:

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

                responseHeaderLines += "\r\n"

                responseBody = f.read()

                f.close()

            finally:

                response = responseHeaderLines + responseBody

                self.clientSocket.send(response)

                self.clientSocket.close()

        else:

            #处理接收到的请求头

            self.parseRequest()

            #根据接收到的请求头构造环境变量字典

            env = self.getEnviron()

            #调用应用的相应方法，完成动态数据的获取

            bodyContent = self.application(env, self.startResponse)

            #组织数据发送给客户端

            self.finishResponse(bodyContent)

    def parseRequest(self):

        '提取出客户端发送的request'

        requestLine = self.recvData.splitlines()[0]

        requestLine = requestLine.rstrip('\r\n')

        self.requestMethod, self.path, self.requestVersion = requestLine.split(" ")

    def getEnviron(self):

        env = {}

        env['wsgi.version']      = (1, 0)

        env['wsgi.input']        = self.recvData

        env['REQUEST_METHOD']    = self.requestMethod    # GET

        env['PATH_INFO']         = self.path             # /index.html

        return env

    def startResponse(self, status, response_headers, exc_info=None):

        serverHeaders = [

            ('Date', 'Tue, 31 Mar 2016 10:11:12 GMT'),

            ('Server', 'WSGIServer 0.2'),

        ]

        self.headers_set = [status, response_headers + serverHeaders]

    def finishResponse(self, bodyContent):

        try:

            status, response_headers = self.headers_set

            #response的第一行

            response = 'HTTP/1.1 {status}\r\n'.format(status=status)

            #response的其他头信息

            for header in response_headers:

                response += '{0}: {1}\r\n'.format(*header)

            #添加一个换行，用来和body进行分开

            response += '\r\n'

            #添加发送的数据

            for data in bodyContent:

                response += data

            self.clientSocket.send(response)

        finally:

            self.clientSocket.close()

#设定服务器的端口

serverAddr = (HOST, PORT) = '', 8888

#设置服务器静态资源的路径

documentRoot = './html'

#设置服务器动态资源的路径

pythonRoot = './wsgiPy'

def makeServer(serverAddr, application):

    server = WSGIServer(serverAddr)

    server.setApp(application)

    return server

def main():

    if len(sys.argv) < 2:

        sys.exit('请按照要求，指定模块名称:应用名称,例如 module:callable')

    #获取module:callable

    appPath = sys.argv[1]

    #根据冒号切割为module和callable

    module, application = appPath.split(':')

    #添加路径套sys.path

    sys.path.insert(0, pythonRoot)

    #动态导入module变量中指定的模块

    module = __import__(module)

    #获取module变量中制定的模块的application变量指定的属性

    application = getattr(module, application)

    httpd = makeServer(serverAddr, application)

    print('WSGIServer: Serving HTTP on port {port} ...\n'.format(port=PORT))

    httpd.serveForever()

if __name__ == '__main__':

    main()

最新文章

  1. Firebug的下载安装
  2. MySql如何编写高效的SQL
  3. HDU 2222 Keywords Search（AC自动机模版题）
  4. 怎么录制Android或IOS动画教程
  5. 浅析String、StringBuffer、StringBuilder的区别以及性能区别
  6. Android：ScaleType设置图片
  7. 解决“重新安装vmware-tools”灰色而无法安装的问题
  8. caffe 中的一些参数介绍
  9. 入门VMware Workstation下的Debian学习之Vim简单使用(三)
  10. python---用户登录程序
  11. ComboBox下拉列表框
  12. windows中启动和终止nginx的两个批处理
  13. java多线程 - 处理并行任务
  14. js之返回网页顶部
  15. Ubuntu 分辨率显示出错，分辨率不是最佳分辨率的解决办法
  16. Java表达式转型规则
  17. tf.nn.rnn_cell.MultiRNNCell
  18. OpenGL学习记录
  19. 登录iOS Dev Center
  20. es6新特性之箭头函数

热门文章

  1. 微信jssdk分享功能开发
  2. linux dig 命令使用方法
  3. Spark核心RDD、什么是RDD、RDD的属性、创建RDD、RDD的依赖以及缓存、
  4. C++ 复制构造函数 与 赋值运算符
  5. javascript 相关小的知识点集合
  6. 【bzoj4031】[HEOI2015]小Z的房间
  7. Nginx动静分离
  8. MUI组件四：选择器、滚动条、单选框、区域滚动和轮播组件
  9. python manage.py runserver指定端口和ip
  10. Kudu的集群安装（1.6.0-cdh5.14.0）