gistfile1.py

#encoding: utf-8
from django.shortcuts import render_to_response
from django.template import RequestContext
from django.http import HttpResponseRedirect, HttpResponse
from clickemgrupo import settings
import cgi
import simplejson as json
import oauth2 as oauth
from clickemgrupo.apps.user import models as user_models
from clickemgrupo.apps.shopping_cart import models as shoppingcart_models
from clickemgrupo.apps.deal import models as deal_models
from datetime import datetime

request_token_url = "http://stage.saveblock.com/login/oauth/request_token/?oauth_callback=http://localhost:8000/sauthorize"
access_token_url = 'http://stage.saveblock.com/login/oauth/access_token/'
authorize_url = "http://stage.saveblock.com/login/oauth/authorize/"

consumer = oauth.Consumer(settings.SAVEBLOCK_KEY, settings.SAVEBLOCK_SECRET)
client = oauth.Client(consumer)

'''
User Info Example:
{'profile': [{'city': u'Jo\xe3o Pessoa', 'neighborhood': 'Bessa', 'facebook_profile': '', 'orkut_profile': '', 'zipcode': '58035-040', 'sex': 'M', 'twitter_profile': '', 'phone': '', 'state': 'PB', 'about_me': 'husahufsahufsa uhsahusafhua', 'created_on': '2011-04-02T17:25:57.730374', 'address': 'Rua aasaas a', 'updated_on': '2011-04-26T11:40:55.935414', 'id': 3}], 'username': 'flavioribeiro', 'first_name': '', 'last_name': u'Fl\xe1vio', 'id': 5, 'avatar': [{'image_medium': '/static/user_avatar/medium/2011/04/13/3-medium.jpg', 'image_small': '/static/user_avatar/small/2011/04/13/3-small.jpg', 'image_big': '/static/user_avatar/big/2011/04/13/3-big.jpg', 'created_on': '2011-04-13T17:43:35.183652', 'updated_on': '2011-04-13T17:43:35.680972', 'id': 3}], 'email': 'email@flavioribeiro.com', 'date_joined': '2011-04-02T17:25:41.324497'}
'''

def login(request, *args):
    resp, content = client.request(request_token_url, "GET")
    if resp['status'] != '200':
        raise Exception("Invalid response from Saveblock")

    request.session['request_token'] = dict(cgi.parse_qsl(content))

    url = "%s?oauth_token=%s" % (authorize_url,
        request.session['request_token']['oauth_token'])

    return HttpResponseRedirect(url)


def authorize(request, *args):
    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, "GET")

    if resp['status'] != '200':
        raise Exception("Invalid response from Saveblock: " + resp['status'])

    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://stage.saveblock.com/api/users/myuser/", "GET")
    if resp['status'] != '200':
        raise Exception("Invalid response from Saveblock:  " + resp['status'])

    content = json.loads(content)
    user_infos = content[0]
    request.session['logged'] = True
    request.session['user_infos'] = user_infos

    create_new_user(user_infos)
    return HttpResponseRedirect("/")

def create_new_user(infos):
    user = user_models.InternalUser.objects.filter(name=infos['username'])
    if not user:
        new_user = user_models.InternalUser()
        new_user.name = str(infos['username'])
        new_user.saveblock_id = int(infos['id'])
        new_user.avatar_icon_url = str(infos['avatar'][0]['image_small'])
        new_user.save()

def confirm_buy(request, *args):
    deal_id = request.GET['item_id']
    user_saveblock_id = request.session['user_infos']['id']
    new_buy = shoppingcart_models.Buy()
    new_buy.deal = deal_models.Deal.objects.get(id=deal_id)
    new_buy.owner = user_models.InternalUser.objects.get(saveblock_id=user_saveblock_id)
    new_buy.date = datetime.now()
    new_buy.save()
    return HttpResponseRedirect("/")

def logout(request, *args):
    try:
        del request.session['logged']
        del request.session['user_infos']
    except:
        pass
    return HttpResponseRedirect("/") 

def index(request, *args):
    '''
    View responsável por mapear o usuário e o Clickemgrupo da sua cidade.
    Se o clickemgrupo ainda não estiver funcionando na cidade, ele apontará
    pra uma cidade default
    '''
    DEFAULT_CITY = "João Pessoa"

    #Se a cidade estiver na URL
    if 'city' in request.path:
        try:
            city_obj = get_city_object_from_url(request.path.split('/')[-1])
            return render_to_response('index.html', {'city': city_obj}, context_instance=RequestContext(request))
        except:
            city_obj = get_city_object_from_name(DEFAULT_CITY)
            return HttpResponseRedirect("/city" + city_obj.url)

    #Se não tiver nenhuma cidade na URL, e o usuario estiver logado no Saveblock
    city = get_user_city(request)
    if city:
        try:
            city_obj = get_city_object_from_name(city)
        except:
            city_obj = get_city_object_from_name(DEFAULT_CITY)

    #Se não tiver nenhuma cidade na URL e nem o usuario estiver logado no Saveblock
    else:
        city_obj = get_city_object_from_name(DEFAULT_CITY)

    return HttpResponseRedirect("/city" + city_obj.url)

def get_city_object_from_name(city_name):
    return deal_models.City.objects.get(name=city_name)

def get_city_object_from_url(city_url):
    return deal_models.City.objects.get(url="/" + city_url)

def get_user_city(request):
    if request.session.has_key('user_infos'):
        user_infos = request.session['user_infos']
        if user_infos['profile'][0]['city']:
            return user_infos['profile'][0]['city']
    return None