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[英]Right way to use http proxy and https proxy within meta while using http site and https sites individually?
[英]http proxy server only working for https sites
我正在嘗試使用此代碼創建HTTP代理緩存服務器。 當我運行代碼時,它開始運行並連接到端口和其他所有端口,但是例如,當我嘗試通過瀏覽器進行連接時,如果我輸入localhost:52523 / www.google.com,它將在55555上打開端口,可以正常工作但是當我嘗試其他特定於HTTP的站點時,例如localhost:52523 / www.microcenter.com或僅localhost:52523 / google.com,它將顯示localhost沒有發送任何數據。 ERR_EMPTY_RESPONSE並在控制台中顯示一個異常,盡管它在我的計算機上創建了緩存文件。
我想了解如何編輯代碼,以便可以像在瀏覽器中一樣正常訪問任何網站,而無需使用代理服務器。 它應該能夠與www.microcenter.com一起使用
import socket
import sys
import urllib
from urlparse import urlparse
Serv_Sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # socket.socket
function creates a socket.
port = Serv_Sock.getsockname()[1]
# Server socket created, bound and starting to listen
Serv_Sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # socket.socket
function creates a socket.
Serv_Sock.bind(('',port))
Serv_Sock.listen(5)
port = Serv_Sock.getsockname()[1]
# Prepare a server socket
print ("starting server on port %s...,"%(port))
def caching_object(splitMessage, Cli_Sock):
#this method is responsible for caching
Req_Type = splitMessage[0]
Req_path = splitMessage[1]
Req_path = Req_path[1:]
print "Request is ", Req_Type, " to URL : ", Req_path
#Searching available cache if file exists
url = urlparse(Req_path)
file_to_use = "/" + Req_path
print file_to_use
try:
file = open(file_to_use[5:], "r")
data = file.readlines()
print "File Present in Cache\n"
#Proxy Server Will Send A Response Message
#Cli_Sock.send("HTTP/1.0 200 OK\r\n")
#Cli_Sock.send("Content-Type:text/html")
#Cli_Sock.send("\r\n")
#Proxy Server Will Send Data
for i in range(0, len(data)):
print (data[i])
Cli_Sock.send(data[i])
print "Reading file from cache\n"
except IOError:
print "File Doesn't Exists In Cache\n fetching file from server \n
creating cache"
serv_proxy = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
host_name = Req_path
print "HOST NAME:", host_name
try:
serv_proxy.connect((url.host_name, 80))
print 'Socket connected to port 80 of the host'
fileobj = serv_proxy.makefile('r', 0)
fileobj.write("GET " + "http://" + Req_path + " HTTP/1.0\n\n")
# Read the response into buffer
buffer = fileobj.readlines()
# Create a new file in the cache for the requested file.
# Also send the response in the buffer to client socket
# and the corresponding file in the cache
tmpFile = open(file_to_use, "wb")
for data in buffer:
tmpFile.write(data)
tcpCliSock.send(data)
except:
print 'Illegal Request'
Cli_Sock.close()
while True:
# Start receiving data from the client
print 'Initiating server... \n Accepting connection\n'
Cli_Sock, addr = Serv_Sock.accept() # Accept a connection from client
#print addr
print ' connection received from: ', addr
message = Cli_Sock.recv(1024) #Recieves data from Socket
splitMessage = message.split()
if len(splitMessage) <= 1:
continue
caching_object(splitMessage, Cli_Sock)
您的錯誤與URI方案(http或https)無關,而與文件和套接字的使用有關。
當您嘗試通過以下方式打開文件時:
file = open(file_to_use[1:], "r")
您傳遞的是非法文件路徑(在您的示例中為http://ebay.com/ )。
使用URI時,可以使用urlparse之類的解析器,以便更好地處理架構,主機名等。
例如:
url = urlparse(Req_path)
file_to_use = url.hostname
file = open(file_to_use, "r")
並僅使用主機名作為文件名。
另一個問題是使用套接字。 函數connect
應該接收主機名,而不是您正在執行的具有模式的主機名。 再次,在解析器的幫助下:
serv_proxy.connect((url.hostname, 80))
除此之外,您不會在客戶端上調用listen
(請參見示例 ),因此您可以刪除該行。
最后,再次使用主機名創建新文件:
tmpFile = open(file_to_use, "wb")
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