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from django.shortcuts import render_to_response
from django.template import RequestContext
from django.core.urlresolvers import reverse
from django.contrib.auth.models import User
from django.http import HttpResponseRedirect
from django.utils.safestring import mark_safe
from django.utils.translation import ugettext as _
from django.contrib.auth.decorators import login_required
from django.contrib.auth import login, logout
from django.http import get_host
import types
from forum.models import AuthKeyUserAssociation
from forum.authentication.forms import SimpleRegistrationForm, SimpleEmailSubscribeForm
from forum.authentication.base import InvalidAuthentication
from forum.authentication import AUTH_PROVIDERS
from forum.models import Question, Answer
def signin_page(request, action=None):
if action is None:
request.session['on_signin_url'] = request.META.get('HTTP_REFERER', '/')
else:
request.session['on_signin_action'] = action
all_providers = [provider.context for provider in AUTH_PROVIDERS.values()]
sort = lambda c1, c2: c1.weight - c2.weight
can_show = lambda c: not request.user.is_authenticated() or c.show_to_logged_in_user
bigicon_providers = sorted([
context for context in all_providers if context.mode == 'BIGICON' and can_show(context)
], sort)
smallicon_providers = sorted([
context for context in all_providers if context.mode == 'SMALLICON' and can_show(context)
], sort)
stackitem_providers = sorted([
context for context in all_providers if context.mode == 'STACK_ITEM' and can_show(context)
], sort)
try:
msg = request.session['auth_error']
del request.session['auth_error']
except:
msg = None
return render_to_response(
'auth/signin.html',
{
'msg': msg,
'all_providers': all_providers,
'bigicon_providers': bigicon_providers,
'stackitem_providers': stackitem_providers,
'smallicon_providers': smallicon_providers,
},
RequestContext(request))
def prepare_provider_signin(request, provider):
force_email_request = request.REQUEST.get('validate_email', 'yes') == 'yes'
request.session['force_email_request'] = force_email_request
if provider in AUTH_PROVIDERS:
provider_class = AUTH_PROVIDERS[provider].consumer
try:
request_url = provider_class.prepare_authentication_request(request,
reverse('auth_provider_done', kwargs={'provider': provider}))
return HttpResponseRedirect(request_url)
except NotImplementedError, e:
return process_provider_signin(request, provider)
except InvalidAuthentication, e:
request.session['auth_error'] = e.message
return HttpResponseRedirect(reverse('auth_signin'))
def process_provider_signin(request, provider):
if provider in AUTH_PROVIDERS:
provider_class = AUTH_PROVIDERS[provider].consumer
try:
assoc_key = provider_class.process_authentication_request(request)
except InvalidAuthentication, e:
request.session['auth_error'] = e.message
return HttpResponseRedirect(reverse('auth_signin'))
if request.user.is_authenticated():
if isinstance(assoc_key, (type, User)):
if request.user != assoc_key:
request.session['auth_error'] = _("Sorry, these login credentials belong to anoother user. Plese terminate your current session and try again.")
else:
request.session['auth_error'] = _("You are already logged in with that user.")
else:
try:
assoc = AuthKeyUserAssociation.objects.get(key=assoc_key)
if assoc.user == request.user:
request.session['auth_error'] = _("These login credentials are already associated with your account.")
else:
request.session['auth_error'] = _("Sorry, these login credentials belong to anoother user. Plese terminate your current session and try again.")
except:
uassoc = AuthKeyUserAssociation(user=request.user, key=assoc_key, provider=provider)
uassoc.save()
request.session['auth_error'] = _("These new credentials are now associated with your account.")
return HttpResponseRedirect(reverse('auth_signin'))
try:
assoc = AuthKeyUserAssociation.objects.get(key=assoc_key)
user_ = assoc.user
return login_and_forward(request, user_)
except:
request.session['assoc_key'] = assoc_key
request.session['auth_provider'] = provider
return HttpResponseRedirect(reverse('auth_external_register'))
return HttpResponseRedirect(reverse('auth_signin'))
def external_register(request):
if request.method == 'POST' and 'bnewaccount' in request.POST:
form1 = SimpleRegistrationForm(request.POST)
email_feeds_form = SimpleEmailSubscribeForm(request.POST)
if (form1.is_valid() and email_feeds_form.is_valid()):
tmp_pwd = User.objects.make_random_password()
user_ = User.objects.create_user(form1.cleaned_data['username'],
form1.cleaned_data['email'], tmp_pwd)
user_.set_unusable_password()
uassoc = AuthKeyUserAssociation(user=user_, key=request.session['assoc_key'], provider=request.session['auth_provider'])
uassoc.save()
email_feeds_form.save(user_)
del request.session['assoc_key']
del request.session['auth_provider']
return login_and_forward(request, user_)
else:
provider_class = AUTH_PROVIDERS[request.session['auth_provider']].consumer
user_data = provider_class.get_user_data(request.session['assoc_key'])
username = user_data.get('username', '')
email = user_data.get('email', '')
if not email:
email = request.session.get('auth_email_request', '')
form1 = SimpleRegistrationForm(initial={
'next': '/',
'username': username,
'email': email,
})
email_feeds_form = SimpleEmailSubscribeForm()
provider_context = AUTH_PROVIDERS[request.session['auth_provider']].context
return render_to_response('auth/complete.html', {
'form1': form1,
'email_feeds_form': email_feeds_form,
'provider':mark_safe(provider_context.human_name),
'login_type':provider_context.id,
'gravatar_faq_url':reverse('faq') + '#gravatar',
}, context_instance=RequestContext(request))
def newquestion_signin_action(user):
question = Question.objects.filter(author=user).order_by('-added_at')[0]
return question.get_absolute_url()
def newanswer_signin_action(user):
answer = Answer.objects.filter(author=user).order_by('-added_at')[0]
return answer.get_absolute_url()
POST_SIGNIN_ACTIONS = {
'newquestion': newquestion_signin_action,
'newanswer': newanswer_signin_action,
}
def login_and_forward(request, user):
old_session = request.session.session_key
user.backend = "django.contrib.auth.backends.ModelBackend"
login(request, user)
from forum.models import user_logged_in
user_logged_in.send(user=user,session_key=old_session,sender=None)
redirect = request.session.get('on_signin_url', None)
if not redirect:
signin_action = request.session.get('on_signin_action', None)
if not signin_action:
redirect = reverse('index')
else:
try:
redirect = POST_SIGNIN_ACTIONS[signin_action](user)
except:
redirect = reverse('index')
return HttpResponseRedirect(redirect)
@login_required
def signout(request):
"""
signout from the website. Remove openid from session and kill it.
url : /signout/"
"""
logout(request)
return HttpResponseRedirect(reverse('index'))
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