10 examples of 'django login form' in Python

245
def form_valid(self, form):
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    messages.add_message(
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        self.request,
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        messages.INFO,
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        'You\'re now logged in as ' + unicode(form.get_user())
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    )
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    login(self.request, form.get_user())
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    return redirect("/")

24
def login(request):
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    # We allow people to log in.
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    #
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    # For the purposes of security auditing, ignore any bugs in this
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    # function.
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    #
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    #
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    # Yes, that means you, dear people attending the tutorial!
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    #
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    # The rest of the app has so many bugs that really I don't want to
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    # hear about bugs you find in this particular view.
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    #
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    # If you want to steal someone else's account, don't do it via
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    # the login view.
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    # Get the login credentials that were submitted, and check if they
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    # are valid.
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    username = request.POST["username"]
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    password = request.POST["password"]
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    user = authenticate(username=username, password=password)
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    # If so, great! Log them in.
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    if user is not None:
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        if user.is_active:
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            django_auth_login(request, user)
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    # Either way, redirect back to the homepage.
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    return HttpResponseRedirect("/")

36
def form_valid(self, form):
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    # OTPTokenForm does not call authenticate(), so we may need to populate
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    # user.backend ourselves to keep login() happy.
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    user = form.get_user()
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    if not hasattr(user, 'backend'):
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        user.backend = self.request.session[BACKEND_SESSION_KEY]
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    return super().form_valid(form)

118
def login_user(request):
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    form = AuthenticationForm()
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    if request.method == 'POST':
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        username = request.POST['username']
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        password = request.POST['password']
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        user = authenticate(username=username, password=password)
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        if user is not None:
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            login(request, user)
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            return redirect('index')
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    return render(request, 'feeds/login.html', {
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        'form': form
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    })

42
def loginPOST(req):
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    form = req.POST
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    nexturl = form.get('next', '/')
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    # grab user information
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    usernm = form.get('username', '')
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    passwd = form.get('password', '')
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    # verify
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    user = authenticate(username=usernm, password=passwd)
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    if user is None or not user.is_active:
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        return redirect('/login/?next=' + nexturl)
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    # all ok, register user
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    login(req, user)
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    # continue to 'next' url
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    return redirect(nexturl)

36
def authenticate_user(self, username, password):
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    user = authenticate(username=username, password=password)
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    if not user or not user.is_active:
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        raise forms.ValidationError(u"Usuário ou senha inválidos.")
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    return user

430
def user_login(request):
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    if request.method == "POST":
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        user_name = request.POST.get("username","")
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        pass_word = request.POST.get("password","")
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        user = authenticate(username=user_name, password=pass_word)
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        if user is not None:
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            login(request, user)
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            request.session['user_id'] = user.id
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            return render(request, "forum.html")
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        else:
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            context = {'login_err': 'Username or Password is wrong!'}
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            return render(request, "login.html", context)
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    elif request.method == "GET":
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        return render(request, "login.html",{})

17
def form_valid(self, *args, **kwargs):
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    resp = super().form_valid(*args, **kwargs)
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    user = self.object
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    auth.login(self.request, user)
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    return resp

72
def user_login(request):
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    """
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    Validates request data and logs user.
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    """
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    email_form = LogInEmailForm(request.POST)
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    username_form = LogInUsernameForm(request.POST)
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    if email_form.is_valid():
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        user_obj = User.objects.filter(email=email_form.cleaned_data['username'])
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        username = user_obj[0] if len(user_obj) else None
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        return login_response(request, username, email_form.cleaned_data['passw'])
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    elif username_form.is_valid():
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        return login_response(request, username_form.cleaned_data['username'], username_form.cleaned_data['passw'])
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    return render(request, 'index.html', {'invalid_authentication': True})

275
def clean(self):
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    password = self.cleaned_data.get('password')
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    if self.user and password:
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        self.user = authenticate(
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            username=self.user.username,
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            password=password
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        )
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        if not self.user:
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            raise ValidationError(
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                "Sorry, the login failed. Please try again.",
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                'login_failed'
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            )
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        elif not self.user.validated:
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            raise ValidationError(
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                "The email address of this account has not been "
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                'validated yet. Please <a href="{}?email={}">'
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                "validate your email address</a>.".format(
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                    reverse('users:signup:resend_validation_email'),
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                    self.user.email
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                ),
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                'not_validated'
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            )