I wrote a simple HTTP client and server in Python for experimenting. The first code snippet below shows how I send an HTTP GET request with a parameter named imsi. In the second code snippet I show my do_Get function implementation in the server side. My question is how I can extract the imsi parameter in the server code and send a response back to the client in order to signal the client that imsi is valid.
Thanks.
P.S.: I verified that the client sends the request successfully.
CLIENT code snippet
params = urllib.urlencode({'imsi': str(imsi)})
conn = httplib.HTTPConnection(host + ':' + str(port))
#conn.set_debuglevel(1)
conn.request("GET", "/index.htm", 'imsi=' + str(imsi))
r = conn.getresponse()
SERVER code snippet
import sys, string, cStringIO, cgi, time, datetime
from os import curdir, sep
from BaseHTTPServer import BaseHTTPRequestHandler, HTTPServer
class MyHandler(BaseHTTPRequestHandler):
# I want to extract the imsi parameter here and send a success response to
# back to the client.
def do_GET(self):
try:
if self.path.endswith(".html"):
#self.path has /index.htm
f = open(curdir + sep + self.path)
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
self.wfile.write("<h1>Device Static Content</h1>")
self.wfile.write(f.read())
f.close()
return
if self.path.endswith(".esp"): #our dynamic content
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
self.wfile.write("<h1>Dynamic Dynamic Content</h1>")
self.wfile.write("Today is the " + str(time.localtime()[7]))
self.wfile.write(" day in the year " + str(time.localtime()[0]))
return
# The root
self.send_response(200)
self.send_header('Content-type','text/html')
self.end_headers()
lst = list(sys.argv[1])
n = lst[len(lst) - 1]
now = datetime.datetime.now()
output = cStringIO.StringIO()
output.write("<html><head>")
output.write("<style type=\"text/css\">")
output.write("h1 {color:blue;}")
output.write("h2 {color:red;}")
output.write("</style>")
output.write("<h1>Device #" + n + " Root Content</h1>")
output.write("<h2>Device Addr: " + sys.argv[1] + ":" + sys.argv[2] + "</h1>")
output.write("<h2>Device Time: " + now.strftime("%Y-%m-%d %H:%M:%S") + "</h2>")
output.write("</body>")
output.write("</html>")
self.wfile.write(output.getvalue())
return
except IOError:
self.send_error(404,'File Not Found: %s' % self.path)
You can parse the query of a GET request using urlparse, then split the query string.
from urlparse import urlparse
query = urlparse(self.path).query
query_components = dict(qc.split("=") for qc in query.split("&"))
imsi = query_components["imsi"]
# query_components = { "imsi" : "Hello" }
# Or use the parse_qs method
from urlparse import urlparse, parse_qs
query_components = parse_qs(urlparse(self.path).query)
imsi = query_components["imsi"]
# query_components = { "imsi" : ["Hello"] }
You can confirm this by using
curl http://your.host/?imsi=Hello