#!/usr/bin/python

# Required libraries
import cgi, urllib, md5, time, Cookie

# Set domain name on which the redirect-page runs, WITHOUT "www.".
domainName = ''

urlParams = cgi.FieldStorage()

if 'tt' in urlParams:
	# Setup vars.
	paramList = urlParams['tt'].value.split('_')
	
	# Grab the campaign specific data.
	if len(paramList) >= 3:
		campaignID = paramList[0]
		materialID = paramList[1]
		affiliateID = paramList[2]
		
		# Optional.
		reference = paramList[3] if paramList[3] else ''
		
		# Calculate MD5 checksum.
		md5hash = md5.new()
		md5hash.update('CHK_' + campaignID + '::' + materialID + '::' + affiliateID + '::' + reference)
		checkSum = md5hash.hexdigest()
		
		# Set session/cookie arguments.
		trackingCookie = Cookie.SimpleCookie();
	
		cookieName = 'TT2_' + campaignID;
		cookieValue = materialID + '::' + affiliateID + '::' + reference + '::' + checkSum + '::' + str(int(time.time()))

		expires = time.gmtime(time.time() + 31536000)
		
		trackingCookie[cookieName] = cookieValue;
		trackingCookie[cookieName]['expires'] = time.strftime('%a, %d-%b-%Y %H:%M:%S UTC', expires)
		trackingCookie[cookieName]['path'] = '/'
		
		if domainName != '':
			trackingCookie[cookieName]['domain'] = '.' + domainName
			
		# Set the tracking cookie.
		print trackingCookie
	else:
		quit()


	trackBackURL = 'http://tc.tradetracker.net/?c=' + urllib.quote_plus(campaignID) + '&m=' + urllib.quote_plus(materialID) + '&a=' + urllib.quote_plus(affiliateID) + '&r=' + urllib.quote_plus(reference) + '&u=' + urllib.quote_plus('' if 'r' not in urlParams else urlParams['r'].value)

	print 'Status: 301 Moved Permanently'
	print 'Location: ' + trackBackURL
	print
	
print