forum/modules/template_loader.py/forum/views/auth.py

   1 from django.shortcuts import render_to_response, get_object_or_404
   2 from django.template import RequestContext
   3 from django.core.urlresolvers import reverse
   4 from forum.models import User
   5 from django.http import HttpResponseRedirect, Http404
   6 from forum.http_responses import HttpResponseUnauthorized
   7 from django.utils.safestring import mark_safe
   8 from django.utils.translation import ugettext as _
   9 from django.utils.http import urlquote_plus
  10 from forum.views.decorators import login_required
  11 from forum.modules import decorate
  12 from django.contrib.auth import login, logout
  13 from django.http import get_host
  14 from forum.actions import SuspendAction
  15 from forum.utils import html
  16 from forum import settings
  17 from writers import manage_pending_data
  18 import types
  19 import datetime
  20 import logging
  21
  22 from forum.forms import SimpleRegistrationForm, SimpleEmailSubscribeForm, \
  23         TemporaryLoginRequestForm, ChangePasswordForm, SetPasswordForm
  24 from forum.utils.mail import send_template_email
  25
  26 from forum.authentication.base import InvalidAuthentication
  27 from forum.authentication import AUTH_PROVIDERS
  28
  29 from forum.models import AuthKeyUserAssociation, ValidationHash, Question, Answer
  30 from forum.actions import UserJoinsAction
  31
  32 def signin_page(request):
  33     referer = request.META.get('HTTP_REFERER', '/')
  34
  35     # If the referer is equal to the sign up page, e. g. if the previous login attempt was not successful we do not
  36     # change the sign in URL. The user should go to the same page.
  37     if not referer.replace(settings.APP_URL, '') == reverse('auth_signin'):
  38         request.session['on_signin_url'] = referer
  39
  40     all_providers = [provider.context for provider in AUTH_PROVIDERS.values()]
  41
  42     sort = lambda c1, c2: c1.weight - c2.weight
  43     can_show = lambda c: not request.user.is_authenticated() or c.show_to_logged_in_user
  44
  45     bigicon_providers = sorted([
  46     context for context in all_providers if context.mode == 'BIGICON' and can_show(context)
  47     ], sort)
  48
  49     smallicon_providers = sorted([
  50     context for context in all_providers if context.mode == 'SMALLICON' and can_show(context)
  51     ], sort)
  52
  53     top_stackitem_providers = sorted([
  54     context for context in all_providers if context.mode == 'TOP_STACK_ITEM' and can_show(context)
  55     ], sort)
  56
  57     stackitem_providers = sorted([
  58     context for context in all_providers if context.mode == 'STACK_ITEM' and can_show(context)
  59     ], sort)
  60
  61     try:
  62         msg = request.session['auth_error']
  63         del request.session['auth_error']
  64     except:
  65         msg = None
  66
  67     return render_to_response(
  68             'auth/signin.html',
  69             {
  70             'msg': msg,
  71             'all_providers': all_providers,
  72             'bigicon_providers': bigicon_providers,
  73             'top_stackitem_providers': top_stackitem_providers,
  74             'stackitem_providers': stackitem_providers,
  75             'smallicon_providers': smallicon_providers,
  76             },
  77             RequestContext(request))
  78
  79 def prepare_provider_signin(request, provider):
  80     force_email_request = request.REQUEST.get('validate_email', 'yes') == 'yes'
  81     request.session['force_email_request'] = force_email_request
  82
  83     if provider in AUTH_PROVIDERS:
  84         provider_class = AUTH_PROVIDERS[provider].consumer
  85
  86         try:
  87             request_url = provider_class.prepare_authentication_request(request,
  88                                                                         reverse('auth_provider_done',
  89                                                                                 kwargs={'provider': provider}))
  90
  91             return HttpResponseRedirect(request_url)
  92         except NotImplementedError, e:
  93             return process_provider_signin(request, provider)
  94         except InvalidAuthentication, e:
  95             request.session['auth_error'] = e.message
  96
  97         return HttpResponseRedirect(reverse('auth_signin'))
  98     else:
  99         raise Http404()
 100
 101
 102 def process_provider_signin(request, provider):
 103     if provider in AUTH_PROVIDERS:
 104         provider_class = AUTH_PROVIDERS[provider].consumer
 105
 106         try:
 107             assoc_key = provider_class.process_authentication_request(request)
 108         except InvalidAuthentication, e:
 109             request.session['auth_error'] = e.message
 110             return HttpResponseRedirect(reverse('auth_signin'))
 111
 112         if request.user.is_authenticated():
 113             if isinstance(assoc_key, (type, User)):
 114                 if request.user != assoc_key:
 115                     request.session['auth_error'] = _(
 116                             "Sorry, these login credentials belong to anoother user. Plese terminate your current session and try again."
 117                             )
 118                 else:
 119                     request.session['auth_error'] = _("You are already logged in with that user.")
 120             else:
 121                 try:
 122                     assoc = AuthKeyUserAssociation.objects.get(key=assoc_key)
 123                     if assoc.user == request.user:
 124                         request.session['auth_error'] = _(
 125                                 "These login credentials are already associated with your account.")
 126                     else:
 127                         request.session['auth_error'] = _(
 128                                 "Sorry, these login credentials belong to anoother user. Plese terminate your current session and try again."
 129                                 )
 130                 except:
 131                     uassoc = AuthKeyUserAssociation(user=request.user, key=assoc_key, provider=provider)
 132                     uassoc.save()
 133                     request.user.message_set.create(
 134                             message=_('The new credentials are now associated with your account'))
 135                     return HttpResponseRedirect(reverse('user_authsettings', args=[request.user.id]))
 136
 137             return HttpResponseRedirect(reverse('auth_signin'))
 138         else:
 139             if isinstance(assoc_key, User):
 140                 return login_and_forward(request, assoc_key)
 141
 142         try:
 143             assoc = AuthKeyUserAssociation.objects.get(key=assoc_key)
 144             user_ = assoc.user
 145             return login_and_forward(request, user_)
 146         except:
 147             request.session['assoc_key'] = assoc_key
 148             request.session['auth_provider'] = provider
 149             return HttpResponseRedirect(reverse('auth_external_register'))
 150
 151     return HttpResponseRedirect(reverse('auth_signin'))
 152
 153 def external_register(request):
 154     if request.method == 'POST' and 'bnewaccount' in request.POST:
 155         form1 = SimpleRegistrationForm(request.POST)
 156         email_feeds_form = SimpleEmailSubscribeForm(request.POST)
 157
 158         if (form1.is_valid() and email_feeds_form.is_valid()):
 159             user_ = User(username=form1.cleaned_data['username'], email=form1.cleaned_data['email'])
 160             user_.email_isvalid = request.session.get('auth_validated_email', '') == form1.cleaned_data['email']
 161             user_.set_unusable_password()
 162
 163             if User.objects.all().count() == 0:
 164                 user_.is_superuser = True
 165                 user_.is_staff = True
 166
 167             user_.save()
 168             UserJoinsAction(user=user_, ip=request.META['REMOTE_ADDR']).save()
 169
 170             try:
 171                 assoc_key = request.session['assoc_key']
 172                 auth_provider = request.session['auth_provider']
 173             except:
 174                 request.session['auth_error'] = _(
 175                         "Oops, something went wrong in the middle of this process. Please try again. Note that you need to have cookies enabled for the authentication to work."
 176                         )
 177                 logging.error("Missing session data when trying to complete user registration: %s" % ", ".join(
 178                         ["%s: %s" % (k, v) for k, v in request.META.items()]))
 179                 return HttpResponseRedirect(reverse('auth_signin'))
 180
 181             uassoc = AuthKeyUserAssociation(user=user_, key=assoc_key, provider=auth_provider)
 182             uassoc.save()
 183
 184             if email_feeds_form.cleaned_data['subscribe'] == 'n':
 185                 user_.subscription_settings.enable_notifications = False
 186                 user_.subscription_settings.save()
 187
 188             del request.session['assoc_key']
 189             del request.session['auth_provider']
 190
 191             return login_and_forward(request, user_, message=_("A welcome email has been sent to your email address. "))
 192     else:
 193         auth_provider = request.session.get('auth_provider', None)
 194         if not auth_provider:
 195             request.session['auth_error'] = _(
 196                     "Oops, something went wrong in the middle of this process. Please try again.")
 197             logging.error("Missing session data when trying to complete user registration: %s" % ", ".join(
 198                     ["%s: %s" % (k, v) for k, v in request.META.items()]))
 199             return HttpResponseRedirect(reverse('auth_signin'))
 200
 201         provider_class = AUTH_PROVIDERS[auth_provider].consumer
 202         user_data = provider_class.get_user_data(request.session['assoc_key'])
 203
 204         if not user_data:
 205             user_data = request.session.get('auth_consumer_data', {})
 206
 207         username = user_data.get('username', '')
 208         email = user_data.get('email', '')
 209
 210         if email:
 211             request.session['auth_validated_email'] = email
 212
 213         form1 = SimpleRegistrationForm(initial={
 214         'next': '/',
 215         'username': username,
 216         'email': email,
 217         })
 218         email_feeds_form = SimpleEmailSubscribeForm()
 219
 220     provider_context = AUTH_PROVIDERS[request.session['auth_provider']].context
 221
 222     return render_to_response('auth/complete.html', {
 223     'form1': form1,
 224     'email_feeds_form': email_feeds_form,
 225     'provider':mark_safe(provider_context.human_name),
 226     'login_type':provider_context.id,
 227     'gravatar_faq_url':reverse('faq') + '#gravatar',
 228     }, context_instance=RequestContext(request))
 229
 230 def request_temp_login(request):
 231     if request.method == 'POST':
 232         form = TemporaryLoginRequestForm(request.POST)
 233
 234         if form.is_valid():
 235             users = form.user_cache
 236
 237             for u in users:
 238                 if u.is_suspended():
 239                     return forward_suspended_user(request, u, False)
 240
 241             for u in users:
 242                 try:
 243                     hash = get_object_or_404(ValidationHash, user=u, type='templogin')
 244                     if hash.expiration < datetime.datetime.now():
 245                         hash.delete()
 246                         return request_temp_login(request)
 247                 except:
 248                     hash = ValidationHash.objects.create_new(u, 'templogin', [u.id])
 249
 250                 send_template_email([u], "auth/temp_login_email.html", {'temp_login_code': hash})
 251
 252                 request.user.message_set.create(message=_("An email has been sent with your temporary login key"))
 253
 254             return HttpResponseRedirect(reverse('index'))
 255     else:
 256         form = TemporaryLoginRequestForm()
 257
 258     return render_to_response(
 259             'auth/temp_login_request.html', {'form': form},
 260             context_instance=RequestContext(request))
 261
 262 def temp_signin(request, user, code):
 263     user = get_object_or_404(User, id=user)
 264
 265     if (ValidationHash.objects.validate(code, user, 'templogin', [user.id])):
 266
 267         # If the user requests temp_signin he must have forgotten his password. So we mark it as unusable.
 268         user.set_unusable_password()
 269         user.save()
 270
 271         return login_and_forward(request, user, reverse('user_authsettings', kwargs={'id': user.id}),
 272                                  _(
 273                                          "You are logged in with a temporary access key, please take the time to fix your issue with authentication."
 274                                          ))
 275     else:
 276         raise Http404()
 277
 278 def send_validation_email(request):
 279     if not request.user.is_authenticated():
 280         return HttpResponseUnauthorized(request)
 281     else:
 282         # We check if there are some old validation hashes. If there are -- we delete them.
 283         try:
 284             hash = ValidationHash.objects.get(user=request.user, type='email')
 285             hash.delete()
 286         except:
 287             pass
 288
 289         # We don't care if there are previous cashes in the database... In every case we have to create a new one
 290         hash = ValidationHash.objects.create_new(request.user, 'email', [request.user.email])
 291
 292         send_template_email([request.user], "auth/mail_validation.html", {'validation_code': hash})
 293         request.user.message_set.create(message=_("A message with an email validation link was just sent to your address."))
 294         return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
 295
 296
 297
 298 def validate_email(request, user, code):
 299     user = get_object_or_404(User, id=user)
 300
 301     if (ValidationHash.objects.validate(code, user, 'email', [user.email])):
 302         user.email_isvalid = True
 303         user.save()
 304         return login_and_forward(request, user, reverse('index'), _("Thank you, your email is now validated."))
 305     else:
 306         return render_to_response('auth/mail_already_validated.html', { 'user' : user }, RequestContext(request))
 307
 308 def auth_settings(request, id):
 309     user_ = get_object_or_404(User, id=id)
 310
 311     if not (request.user.is_superuser or request.user == user_):
 312         return HttpResponseUnauthorized(request)
 313
 314     auth_keys = user_.auth_keys.all()
 315
 316     if request.user.is_superuser or (not user_.has_usable_password()):
 317         FormClass = SetPasswordForm
 318     else:
 319         FormClass = ChangePasswordForm
 320
 321     if request.POST:
 322         form = FormClass(request.POST, user=user_)
 323         if form.is_valid():
 324             is_new_pass = not user_.has_usable_password()
 325             user_.set_password(form.cleaned_data['password1'])
 326             user_.save()
 327
 328             if is_new_pass:
 329                 request.user.message_set.create(message=_("New password set"))
 330                 if not request.user.is_superuser:
 331                     form = ChangePasswordForm(user=user_)
 332             else:
 333                 request.user.message_set.create(message=_("Your password was changed"))
 334
 335             return HttpResponseRedirect(reverse('user_authsettings', kwargs={'id': user_.id}))
 336     else:
 337         form = FormClass(user=user_)
 338
 339     auth_keys_list = []
 340
 341     for k in auth_keys:
 342         provider = AUTH_PROVIDERS.get(k.provider, None)
 343
 344         if provider is not None:
 345             name =  "%s: %s" % (provider.context.human_name, provider.context.readable_key(k))
 346         else:
 347             from forum.authentication.base import ConsumerTemplateContext
 348             "unknown: %s" % ConsumerTemplateContext.readable_key(k)
 349
 350         auth_keys_list.append({
 351         'name': name,
 352         'id': k.id
 353         })
 354
 355     return render_to_response('auth/auth_settings.html', {
 356     'view_user': user_,
 357     "can_view_private": (user_ == request.user) or request.user.is_superuser,
 358     'form': form,
 359     'has_password': user_.has_usable_password(),
 360     'auth_keys': auth_keys_list,
 361     'allow_local_auth': AUTH_PROVIDERS.get('local', None),
 362     }, context_instance=RequestContext(request))
 363
 364 def remove_external_provider(request, id):
 365     association = get_object_or_404(AuthKeyUserAssociation, id=id)
 366     if not (request.user.is_superuser or request.user == association.user):
 367         return HttpResponseUnauthorized(request)
 368
 369     request.user.message_set.create(message=_("You removed the association with %s") % association.provider)
 370     association.delete()
 371     return HttpResponseRedirect(reverse('user_authsettings', kwargs={'id': association.user.id}))
 372
 373 def login_and_forward(request, user, forward=None, message=None):
 374     if user.is_suspended():
 375         return forward_suspended_user(request, user)
 376
 377     user.backend = "django.contrib.auth.backends.ModelBackend"
 378     login(request, user)
 379
 380     if message is None:
 381         message = _("Welcome back %s, you are now logged in") % user.username
 382
 383     request.user.message_set.create(message=message)
 384
 385     if not forward:
 386         forward = request.session.get('on_signin_url', reverse('index'))
 387
 388     pending_data = request.session.get('pending_submission_data', None)
 389
 390     if pending_data and (user.email_isvalid or pending_data['type'] not in settings.REQUIRE_EMAIL_VALIDATION_TO):
 391         submission_time = pending_data['time']
 392         if submission_time < datetime.datetime.now() - datetime.timedelta(minutes=int(settings.HOLD_PENDING_POSTS_MINUTES)):
 393             del request.session['pending_submission_data']
 394         elif submission_time < datetime.datetime.now() - datetime.timedelta(minutes=int(settings.WARN_PENDING_POSTS_MINUTES)):
 395             user.message_set.create(message=(_("You have a %s pending submission.") % pending_data['data_name']) + " %s, %s, %s" % (
 396                 html.hyperlink(reverse('manage_pending_data', kwargs={'action': _('save')}), _("save it")),
 397                 html.hyperlink(reverse('manage_pending_data', kwargs={'action': _('review')}), _("review")),
 398                 html.hyperlink(reverse('manage_pending_data', kwargs={'action': _('cancel')}), _("cancel"))
 399             ))
 400         else:
 401             return manage_pending_data(request, _('save'), forward)
 402
 403     return HttpResponseRedirect(forward)
 404
 405 def forward_suspended_user(request, user, show_private_msg=True):
 406     message = _("Sorry, but this account is suspended")
 407     if show_private_msg:
 408         msg_type = 'privatemsg'
 409     else:
 410         msg_type = 'publicmsg'
 411
 412     suspension = user.suspension
 413     if suspension:
 414         message += (":<br />" + suspension.extra.get(msg_type, ''))
 415
 416     request.user.message_set.create(message)
 417     return HttpResponseRedirect(reverse('index'))
 418
 419 @decorate.withfn(login_required)
 420 def signout(request):
 421     logout(request)
 422     return HttpResponseRedirect(reverse('index'))