Synnefo

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import json

from django.http import HttpResponseBadRequest

from django.utils.translation import ugettext as _

from django.contrib import messages

from django.template import RequestContext

from django.views.decorators.http import require_http_methods

from django.http import HttpResponseRedirect

from django.core.urlresolvers import reverse

from django.core.exceptions import ImproperlyConfigured

from django.shortcuts import get_object_or_404

from urlparse import urlunsplit, urlsplit

from astakos.im.util import prepare_response, get_context, login_url

from astakos.im.views import requires_anonymous, render_response, \

        requires_auth_provider

from astakos.im.settings import ENABLE_LOCAL_ACCOUNT_MIGRATION, BASEURL

from astakos.im.models import AstakosUser, PendingThirdPartyUser

from astakos.im.forms import LoginForm

from astakos.im.activation_backends import get_backend, SimpleBackend

from astakos.im import settings

from astakos.im import auth_providers

from astakos.im.target import add_pending_auth_provider, get_pending_key, \

    handle_third_party_signup

import astakos.im.messages as astakos_messages

import logging

logger = logging.getLogger(__name__)

import oauth2 as oauth

import cgi

consumer = oauth.Consumer(settings.LINKEDIN_TOKEN, settings.LINKEDIN_SECRET)

client = oauth.Client(consumer)

request_token_url      = 'https://api.linkedin.com/uas/oauth/requestToken?scope=r_basicprofile+r_emailaddress'

access_token_url       = 'https://api.linkedin.com/uas/oauth/accessToken'

authenticate_url       = 'https://www.linkedin.com/uas/oauth/authorize'

@requires_auth_provider('linkedin', login=True)

@require_http_methods(["GET", "POST"])

def login(request):

    resp, content = client.request(request_token_url, "GET")

    if resp['status'] != '200':

        messages.error(request, 'Invalid linkedin response')

        return HttpResponseRedirect(reverse('edit_profile'))

    request_token = dict(cgi.parse_qsl(content))

    request.session['request_token'] = request_token

    url = request_token.get('xoauth_request_auth_url') + "?oauth_token=%s" % request_token.get('oauth_token')

    if request.GET.get('key', None):

        request.session['pending_key'] = request.GET.get('key')

    return HttpResponseRedirect(url)

@requires_auth_provider('linkedin', login=True)

@require_http_methods(["GET", "POST"])

def authenticated(

    request,

    template='im/third_party_check_local.html',

    extra_context={}

):

    if request.GET.get('denied'):

        return HttpResponseRedirect(reverse('edit_profile'))

    if not 'request_token' in request.session:

        messages.error(request, 'linkedin handshake failed')

        return HttpResponseRedirect(reverse('edit_profile'))

    token = oauth.Token(request.session['request_token']['oauth_token'],

        request.session['request_token']['oauth_token_secret'])

    token.set_verifier(request.GET.get('oauth_verifier'))

    client = oauth.Client(consumer, token)

    resp, content = client.request(access_token_url, "POST")

    if resp['status'] != '200':

        try:

            del request.session['request_token']

        except:

            pass

        messages.error(request, 'Invalid linkedin token response')

        return HttpResponseRedirect(reverse('edit_profile'))

    access_token = dict(cgi.parse_qsl(content))

    token = oauth.Token(access_token['oauth_token'],

        access_token['oauth_token_secret'])

    client = oauth.Client(consumer, token)

    resp, content = client.request("http://api.linkedin.com/v1/people/~:(id,first-name,last-name,industry,email-address)?format=json", "GET")

    if resp['status'] != '200':

        try:

            del request.session['request_token']

        except:

            pass

        messages.error(request, 'Invalid linkedin profile response')

        return HttpResponseRedirect(reverse('edit_profile'))

    profile_data = json.loads(content)

    userid = profile_data['id']

    username = profile_data.get('emailAddress', None)

    realname = profile_data.get('firstName', '') + ' ' + profile_data.get('lastName', '')

    provider_info = profile_data

    affiliation = 'LinkedIn.com'

    third_party_key = get_pending_key(request)

    # an existing user accessed the view

    if request.user.is_authenticated():

        if request.user.has_auth_provider('linkedin', identifier=userid):

            return HttpResponseRedirect(reverse('edit_profile'))

        # automatically add eppn provider to user

        user = request.user

        if not request.user.can_add_auth_provider('linkedin',

                                                  identifier=userid):

            # TODO: handle existing uuid message separately

            messages.error(request, _(astakos_messages.AUTH_PROVIDER_ADD_FAILED) +

                          u' ' + _(astakos_messages.AUTH_PROVIDER_ADD_EXISTS))

            return HttpResponseRedirect(reverse('edit_profile'))

        user.add_auth_provider('linkedin', identifier=userid,

                               affiliation=affiliation,

                               provider_info=provider_info)

        messages.success(request, astakos_messages.AUTH_PROVIDER_ADDED)

        return HttpResponseRedirect(reverse('edit_profile'))

    try:

        # astakos user exists ?

        user = AstakosUser.objects.get_auth_provider_user(

            'linkedin',

            identifier=userid

        )

        if user.is_active:

            # authenticate user

            response = prepare_response(request,

                                    user,

                                    request.GET.get('next'),

                                    'renew' in request.GET)

            provider = auth_providers.get_provider('linkedin')

            messages.success(request, _(astakos_messages.LOGIN_SUCCESS) %

                             _(provider.get_login_message_display))

            add_pending_auth_provider(request, third_party_key)

            response.set_cookie('astakos_last_login_method', 'linkedin')

            return response

        else:

            message = user.get_inactive_message()

            messages.error(request, message)

            return HttpResponseRedirect(login_url(request))

    except AstakosUser.DoesNotExist, e:

        user_info = {'affiliation': affiliation, 'realname': realname}

        return handle_third_party_signup(request, userid, 'linkedin',

                                         third_party_key,

                                         provider_info,

                                         user_info,

                                         template,

                                         extra_context)