server page 101

import socket
import os
x = 0
s = socket.socket()
host = socket.gethostname()
port = 80
s.bind(( host , port))
s.listen(5)
name = "file-name="
iname = "image-name="
while True:
    c, addr = s.accept()     # Establish connection with client.
    print 'Got connection from', addr
    print "Receiving..."
    l=c.recv(1024)
    if ("favicon.ico" in l):
                continue
    if ("GET /" in l) and (" HTTP/1.1" in l):
         print (l)
         index = l.index(iname)
         index = index+len(iname)
         index2 = l.index("HTTP")
         file_name=l[index:index2]
         print(file_name)
         isf=os.path.isfile("upload/"+file_name)
         if isf:
             f=open("upload/"+file_name,'rb')
             l=f.read()
             while (l):
                c.send(l)
                l = f.read(1024)
             print(file_name)
             c.send(file_name)
             c.close()
             f.close()
         else:
            f=open("upload\e4.html",'rb')
            l=f.read()
            while (l):
                c.send(l)
                l = f.read(1024)
            c.close()
            f.close()
    else:
        index=l.index(name)
        index=index+len(name)
        index2=l.index("HTTP")
        file_name=l[index:index2]
        print(file_name)
        f=open('upload/'+"("+str(x)+")"+file_name, 'wb')
        while l:
               l=c.recv(1024)
               f.write(l)
        f.close()
        print "Done Receiving"
        c.send('Thank you for connecting')
        c.close()
        x+=1
print "server is shutting down"
s.shutdown()