http静态服务器

小咪咪 2021-09-17 09:44 370阅读 0赞

# http静态服务器 #

#### 代码 ####

from socket import *
    from multiprocessing import Process
    
    
    def rec_data(new_socket):
        # 接收数据
        require_data = new_socket.recv(1024)
        if require_data:
            # 将请求头转化为列表
            require_data = require_data.splitlines()[0].decode('utf-8')
            # 获取文件名
            file_name = require_data.split(" ")[1]
            # 拼接文件路径
            if file_name == "/":
                file = WEB_ROOT + "/index.html"
            else:
                file = WEB_ROOT + file_name
            print(file)
            try:
                with open(file, "rb") as f:
                    html = f.read()
            except:
                # 拼接响应头
                response_data = b"HTTP/1.1 400 NOT FOUND\r\n " + b"content-type: text/html; charset=UTF-8\r\n\r\n" + b"NOT FOUND"
                new_socket.send(response_data)
            else:
                response_data = b"HTTP/1.1 200 OK\r\n\r\n" + html
                new_socket.send(response_data)
        else:
            new_socket.close()
    
    
    WEB_ROOT = "html"
    
    
    def main():
        # 创建对象
        tcp_server = socket(AF_INET, SOCK_STREAM)
        # 绑定端口和ip
        tcp_server.bind(("", 8889))
        # 创建监听
        tcp_server.listen(5)
        while True:
            # 等待连接
            new_socket, client = tcp_server.accept()
            p = Process(target=rec_data, args=(new_socket,))
            p.start()
            # 关闭连接
            new_socket.close()
    
    
    if __name__ == '__main__':
        main()

#### 封装代码 ####

from socket import *
    from multiprocessing import Process
    
    
    class WebServer(object):
        def __init__(self, port=4545, listen=5):
            # 创建对象
            self.tcp_server = socket(AF_INET, SOCK_STREAM)
            self.tcp_server.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
            # 绑定端口和ip
            self.tcp_server.bind(("", port))
            # 创建监听
            self.tcp_server.listen(listen)
    
        def rec_data(self, new_socket):
            # 接收数据
            print('ssd')
            require_data = new_socket.recv(1024)
            if require_data:
                # 将请求头转化为列表
                require_data = require_data.splitlines()[0].decode('utf-8')
                # 获取文件名
                file_name = require_data.split(" ")[1]
                # 拼接文件路径
                if file_name == "/":
                    file = WEB_ROOT + "/index.html"
                else:
                    file = WEB_ROOT + file_name
                print(file)
                try:
                    with open(file, "rb") as f:
                        html = f.read()
                except:
                    # 拼接响应头
                    response_data = b"HTTP/1.1 400 NOT FOUND\r\n " + b"content-type: text/html; charset=UTF-8\r\n\r\n" + b"NOT FOUND"
                    new_socket.send(response_data)
                else:
                    response_data = b"HTTP/1.1 200 OK\r\n\r\n" + html
                    new_socket.send(response_data)
            else:
                new_socket.close()
    
        def run(self):
            while True:
                # 等待连接
                new_socket, client = self.tcp_server.accept()
                p = Process(target=self.rec_data, args=(new_socket,))
                p.start()
                # 关闭连接
                new_socket.close()
    
    
    WEB_ROOT = "html"
    
    
    def main():
        new = WebServer()
        new.run()
    
    
    if __name__ == '__main__':
        main()

状态码:

200 成功

301 永久重定向

302 临时重定向

404 页面未找到

403 请求拒绝

500 服务器错误

## 请求 ##

# 请求行
    GET /2.html HTTP/1.1
    # 请求头  浏览器告诉服务器自己的一些信息和可以接受的信息
    Host: 127.0.0.1:8080
    # 保持长连接
    Connection: keep-alive
    Cache-Control: max-age=0
    Upgrade-Insecure-Requests: 1
    # 浏览器信息
    User-Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36
    # 可以接收的文件类型
    Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
    # 可以处理的压缩格式
    Accept-Encoding: gzip, deflate, br
    # 我能听得懂的语言
    Accept-Language: zh-CN,zh;q=0.9

## 响应 ##

# 状态行
    HTTP/1.1 200 OK
    # 响应头
    Server: nginx
    # 告诉客户端用什么类型来处理文件
    Content-Type: text/html;charset=UTF-8 
    
    # 内容 和响应头之间必需空一行
    aaaaaa

> 1.  短连接：客户端请求，服务端口响应，响应完了，马上断开连接，一次请求一次响应
> 2.  长连接：客户端请求，服务端响应，客户端请求，服务端响应，客户端请求，服务端响应，长时间不操作，超时断开连接