moviewyrm/bookwyrm/views/authentication.py

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''' class views for login/register views '''
from django.contrib.auth import authenticate, login, logout
from django.contrib.auth.decorators import login_required
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from django.core.exceptions import PermissionDenied
from django.shortcuts import get_object_or_404, redirect
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from django.template.response import TemplateResponse
from django.utils import timezone
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_exempt
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from django.views import View
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from bookwyrm import forms, models
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from bookwyrm.settings import DOMAIN
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# pylint: disable= no-self-use
@method_decorator(csrf_exempt, name='dispatch')
class Login(View):
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''' authenticate an existing user '''
def get(self, request):
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''' login page '''
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if request.user.is_authenticated:
return redirect('/')
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# sene user to the login page
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data = {
'login_form': forms.LoginForm(),
'register_form': forms.RegisterForm(),
}
return TemplateResponse(request, 'login.html', data)
def post(self, request):
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''' authentication action '''
if request.user.is_authenticated:
return redirect('/')
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login_form = forms.LoginForm(request.POST)
localname = login_form.data['localname']
if '@' in localname: # looks like an email address to me
email = localname
try:
username = models.User.objects.get(email=email)
except models.User.DoesNotExist: # maybe it's a full username?
username = localname
else:
username = '%s@%s' % (localname, DOMAIN)
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password = login_form.data['password']
user = authenticate(request, username=username, password=password)
if user is not None:
# successful login
login(request, user)
user.last_active_date = timezone.now()
user.save(broadcast=False)
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return redirect(request.GET.get('next', '/'))
# login errors
login_form.non_field_errors = 'Username or password are incorrect'
register_form = forms.RegisterForm()
data = {
'login_form': login_form,
'register_form': register_form
}
return TemplateResponse(request, 'login.html', data)
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class Register(View):
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''' register a user '''
def post(self, request):
''' join the server '''
if not models.SiteSettings.get().allow_registration:
invite_code = request.POST.get('invite_code')
if not invite_code:
raise PermissionDenied
invite = get_object_or_404(models.SiteInvite, code=invite_code)
if not invite.valid():
raise PermissionDenied
else:
invite = None
form = forms.RegisterForm(request.POST)
errors = False
if not form.is_valid():
errors = True
localname = form.data['localname'].strip()
email = form.data['email']
password = form.data['password']
# check localname and email uniqueness
if models.User.objects.filter(localname=localname).first():
form.errors['localname'] = [
'User with this username already exists']
errors = True
if errors:
data = {
'login_form': forms.LoginForm(),
'register_form': form,
'invite': invite,
'valid': invite.valid() if invite else True,
}
if invite:
return TemplateResponse(request, 'invite.html', data)
return TemplateResponse(request, 'login.html', data)
username = '%s@%s' % (localname, DOMAIN)
user = models.User.objects.create_user(
username, email, password, localname=localname, local=True)
if invite:
invite.times_used += 1
invite.save()
login(request, user)
return redirect('/')
@method_decorator(login_required, name='dispatch')
class Logout(View):
''' log out '''
def get(self, request):
''' done with this place! outa here! '''
logout(request)
return redirect('/')