#!/usr/bin/env python
#
# Copyright 2007-2013 The Python-Twitter Developers
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import webbrowser
from requests_oauthlib import OAuth1Session

REQUEST_TOKEN_URL = 'https://api.twitter.com/oauth/request_token'
ACCESS_TOKEN_URL = 'https://api.twitter.com/oauth/access_token'
AUTHORIZATION_URL = 'https://api.twitter.com/oauth/authorize'
SIGNIN_URL = 'https://api.twitter.com/oauth/authenticate'


def get_access_token(consumer_key, consumer_secret):
    oauth_client = OAuth1Session(consumer_key, client_secret=consumer_secret, callback_uri='oob')

    print 'Requesting temp token from Twitter'

    try:
        resp = oauth_client.fetch_request_token(REQUEST_TOKEN_URL)
    except ValueError, e:
        print 'Invalid respond from Twitter requesting temp token: %s' % e
        return
    url = oauth_client.authorization_url(AUTHORIZATION_URL)

    print ''
    print 'I will try to start a browser to visit the following Twitter page'
    print 'if a browser will not start, copy the URL to your browser'
    print 'and retrieve the pincode to be used'
    print 'in the next step to obtaining an Authentication Token:'
    print ''
    print url
    print ''

    webbrowser.open(url)
    pincode = raw_input('Pincode? ')

    print ''
    print 'Generating and signing request for an access token'
    print ''

    oauth_client = OAuth1Session(consumer_key, client_secret=consumer_secret,
                                 resource_owner_key=resp.get('oauth_token'),
                                 resource_owner_secret=resp.get('oauth_token_secret'),
                                 verifier=pincode
    )
    try:
        resp = oauth_client.fetch_access_token(ACCESS_TOKEN_URL)
    except ValueError, e:
        print 'Invalid respond from Twitter requesting access token: %s' % e
        return

    print 'Your Twitter Access Token key: %s' % resp.get('oauth_token')
    print '          Access Token secret: %s' % resp.get('oauth_token_secret')
    print ''


def main():
    consumer_key = raw_input('Enter your consumer key: ')
    consumer_secret = raw_input("Enter your consumer secret: ")
    get_access_token(consumer_key, consumer_secret)


if __name__ == "__main__":
    main()