Question

我从我的教授那里得到了这个代码，我知道如何在Web浏览器中启动它，它显示“索引应该是索引”。我无法理解的是如何使文件传输工作。它应该传输一个名为favicon.ico的文件，但我无法弄清楚它应该如何工作，因为我在python中很糟糕。任何帮助都会很棒。

    # -------------------------------------------------------------------------------
# Name:        Hello World Server
# Purpose:     ¯\_(ツ)_/¯
#
# Author:      JaredRand
#
# Created:     11/1/17
# Copyright:
# Licence:
# -------------------------------------------------------------------------------

from socket import *
import threading
import mimetypes


def main():
    serverPort = 8080
    serverSocket = socket(AF_INET, SOCK_STREAM)
    serverSocket.bind(('localhost', serverPort))
    serverSocket.listen(0)  # number of backlogged connections
    print('server ready')
    while 1:

        try:
            connectionSocket, addr = serverSocket.accept()  # make everything after this a function?
            print('passed try 1')
        except IOError:
            print("Server Socket Accept Error")

        try:
            request = connectionSocket.recv(1024).decode('utf-8')
            print('passed try 2')
            print(request)
        except IOError:
            print("Server Socket Recv Error")

        if request:
            # https://www.w3.org/Protocols/rfc2616/rfc2616-sec5.html
            try:
                [Method, Request_URI, HHTP_Version] = request.split(' ', 2)
                print('passed try 3')
                print(Method)
                print(Request_URI)
                print(HHTP_Version)
            except ValueError:
                print("Request Parse Error:" + request)

            try:
                # https://www.ietf.org/rfc/rfc2396.txt

                [scheme, hier_part] = Request_URI.split(":", 1)
                print('passed try 4')
                print(scheme)
                print(hier_part)
            except ValueError:
                print("No Scheme")
                scheme = None
                hier_part = Request_URI

            # more parsing is required but assuming the Request_URI is a path
            print("Request URI is: " + hier_part)

            # see if the file is present
            if hier_part != "/":
                try:
                    print("Request File is: " + hier_part)
                    fo = open('.' + hier_part, "rb")
                except IOError:
                    # here need to send a 404 error
                    http_status = 'HTTP/1.1 404 Not Found\n'
                    http_content = 'Content-Type: text/html charset=utf-8\n\n'
                    outputdata = 'Bad File'
                else:
                    # right now only file we have is the icon
                    outputdata = fo.read()
                    fo.close()
                    http_status = 'HTTP/1.1 200 OK\n'
                    http_content = 'Content-Type: image/x-icon\n\n'
            else:
                # here we would the contents of index.html
                outputdata = '<!DOCTYPE html><head><meta charset="utf-8">' \
                             + '<title> test </title></head><body><h1>Index File</h1><p>Should be index</p></body></html>'
                http_status = 'HTTP/1.1 200 OK\n'
                http_content = 'Content-Type: text/html charset=utf-8\n\n'

            # send the response header

            connectionSocket.send(http_status.encode('utf-8'))
            connectionSocket.send('Connection: close\n'.encode('utf-8'))
            # https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html Should
            LengthString = 'Content-Length: ' + str(len(outputdata)) + '\n'
            # connectionSocket.send('Transfer-Encoding: identity\n')
            connectionSocket.send(LengthString.encode('utf-8'))
            connectionSocket.send(http_content.encode('utf-8'))

            print(type(outputdata))
            try:
                outputdatae = outputdata.encode('utf-8')
            except AttributeError:
                outputdatae = outputdata

            connectionSocket.send(outputdatae)

            connectionSocket.shutdown(SHUT_RDWR)
            connectionSocket.close()
        else:
            print("No Request")

    pass


if __name__ == '__main__':
    main()

不知道如何通过python套接字服务器传输文件

0 个答案: