#!/usr/bin/python

import cgi
import cgitb; cgitb.enable()  # for troubleshooting
import urllib
import urllib2

br="<br>"

# get code and state passed in
dataIn = cgi.FieldStorage()
code = dataIn.getvalue('code')
state = dataIn.getvalue('state')

topUrl = "https://api.toodledo.com/3/account/"
tokenUrl = "https://api.toodledo.com/3/account/token.php"
clientID = 'CLIENT_ID'  # client ID goes here
secret = 'SECRET'  # Secret goes here
tokenParams = { 'grant_type':'authorization_code', 'code':code, 'device':'python' }

# Basic Authorization code from https://docs.python.org/2/howto/urllib2.html
# create a password manager
password_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm()
# Add the username and password.
password_mgr.add_password(None, topUrl, clientID, secret)

auth_handler = urllib2.HTTPBasicAuthHandler(password_mgr)

# create "opener" (OpenerDirector instance)
opener = urllib2.build_opener(auth_handler)

# Install the opener.
# Now all calls to urllib2.urlopen use our opener.
urllib2.install_opener(opener)

##########################

# get the task list
data = urllib.urlencode(tokenParams)
req = urllib2.Request(tokenUrl, data)
try:
	errortext = ''
	response = urllib2.urlopen(req)
except urllib2.URLError as e:
	if hasattr(e, 'reason'):
		errortext += 'We failed to reach a server. <br>Reason: ' + str(e.reason)
	elif hasattr(e, 'code'):
		errortext += 'The server couldn\'t fulfill the request.<br>Error code: ' + str(e.code)

print "Content-Type: text/html\n\n"  # Need a couple of newlines after Content-Type to not get 500 Error

print "TokenParams:", tokenParams, br
if ( errortext ):
	print "Error:", errortext, br
	print "code: ", code, br, "state: ", state, br
else:
	print "URL: ", response.geturl(), br
	print "Headers: ", response.info(), br
	print "Result: ", response.read(), br

print "Done"