/lib/registration/forms.py

"""
Forms and validation code for user registration.

"""


from django.contrib.auth.models import User
from django import forms
from django.utils.translation import ugettext_lazy as _

from registration.models import RegistrationProfile

# I put this on all required fields, because it's easier to pick up
# on them with CSS or JavaScript if they have a class of "required"
# in the HTML. Your mileage may vary. If/when Django ticket #3515
# lands in trunk, this will no longer be necessary.
attrs_dict = { 'class': 'required' }





class RegistrationForm(forms.Form):
    """
    Form for registering a new user account.
    
    Validates that the requested username is not already in use, and
    requires the password to be entered twice to catch typos.
    
    Subclasses should feel free to add any additional validation they
    need, but should either preserve the base ``save()`` or implement
    a ``save()`` method which returns a ``User``.
    
    """
    username = forms.RegexField(regex=r'^\w+$',
                                max_length=30,
                                min_length=3,
                                widget=forms.TextInput(attrs=attrs_dict),
                                label=_(u'username'))
    email = forms.EmailField(widget=forms.TextInput(attrs=dict(attrs_dict,
                                                               maxlength=75)),
                             label=_(u'email address'))
    password1 = forms.CharField(widget=forms.PasswordInput(attrs=attrs_dict, render_value=False),
                                label=_(u'password'))
    password2 = forms.CharField(widget=forms.PasswordInput(attrs=attrs_dict, render_value=False),
                                label=_(u'password (again)'))
    
    def clean_username(self):
        """
        Validate that the username is alphanumeric and is not already
        in use.
        
        """
        try:
            user = User.objects.get(username__iexact=self.cleaned_data['username'])
        except User.DoesNotExist:
            return self.cleaned_data['username']
        raise forms.ValidationError(_(u'This username is already taken. Please choose another.'))

    def clean(self):
        """
        Verifiy that the values entered into the two password fields
        match. Note that an error here will end up in
        ``non_field_errors()`` because it doesn't apply to a single
        field.
        
        """
        if 'password1' in self.cleaned_data and 'password2' in self.cleaned_data:
            if self.cleaned_data['password1'] != self.cleaned_data['password2']:
                raise forms.ValidationError(_(u'You must type the same password each time'))
        return self.cleaned_data
    
    def save(self):
        """
        Create the new ``User`` and ``RegistrationProfile``, and
        returns the ``User`` (by calling
        ``RegistrationProfile.objects.create_inactive_user()``).
        
        """
        new_user = RegistrationProfile.objects.create_inactive_user(username=self.cleaned_data['username'],
                                                                    password=self.cleaned_data['password1'],
                                                                    email=self.cleaned_data['email'])
        return new_user


class RegistrationFormTermsOfService(RegistrationForm):
    """
    Subclass of ``RegistrationForm`` which adds a required checkbox
    for agreeing to a site's Terms of Service.
    
    """
    tos = forms.BooleanField(widget=forms.CheckboxInput(attrs=attrs_dict),
                             label=_(u'I have read and agree to the Terms of Service'),
                             error_messages={ 'required': u"You must agree to the terms to register" })


class RegistrationFormUniqueEmail(RegistrationForm):
    """
    Subclass of ``RegistrationForm`` which enforces uniqueness of
    email addresses.
    
    """
    def clean_email(self):
        """
        Validate that the supplied email address is unique for the
        site.
        
        """
        if User.objects.filter(email__iexact=self.cleaned_data['email']):
            raise forms.ValidationError(_(u'This email address is already in use. Please supply a different email address.'))
        return self.cleaned_data['email']


class RegistrationFormNoFreeEmail(RegistrationForm):
    """
    Subclass of ``RegistrationForm`` which disallows registration with
    email addresses from popular free webmail services; moderately
    useful for preventing automated spam registrations.
    
    To change the list of banned domains, subclass this form and
    override the attribute ``bad_domains``.
    
    """
    bad_domains = ['aim.com', 'aol.com', 'email.com', 'gmail.com',
                   'googlemail.com', 'hotmail.com', 'hushmail.com',
                   'msn.com', 'mail.ru', 'mailinator.com', 'live.com']
    
    def clean_email(self):
        """
        Check the supplied email address against a list of known free
        webmail domains.
        
        """
        email_domain = self.cleaned_data['email'].split('@')[1]
        if email_domain in self.bad_domains:
            raise forms.ValidationError(_(u'Registration using free email addresses is prohibited. Please supply a different email address.'))
        return self.cleaned_data['email']





##############################################################################
# THE FOLLOWING LICENSE APPLIES TO THE REST OF THIS FILE
# (the rest of this file contains additions made to the original
# django-registration module for Clusterify)

"""
"The contents of this file are subject to the Common Public Attribution
License Version 1.0 (the "License"); you may not use this file except 
in compliance with the License. You may obtain a copy of the License at 
http://www.clusterify.com/files/CODE_LICENSE.txt. The License is based 
on the Mozilla Public License Version 1.1 but Sections 14 and 15 have 
been added to cover use of software over a computer network and provide 
for limited attribution for the Original Developer. In addition, Exhibit 
A has been modified to be consistent with Exhibit B.

Software distributed under the License is distributed on an "AS IS" basis, 
WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
for the specific language governing rights and limitations under the 
License.

The Original Code is Clusterify.

The Initial Developer of the Original Code is "the Clusterify.com team", 
which is described at http://www.clusterify.com/about/. All portions of 
the code written by the Initial Developer are Copyright (c) the Initial 
Developer. All Rights Reserved.
"""

# MODIF: added this class
class ProfileForm(forms.Form):
    description = forms.CharField(
                    required=False,
                    widget=forms.widgets.Textarea(
                        attrs={'class':'markdown_textarea','rows':'20'}),
                    max_length=5000)
    email = forms.EmailField(required=False)
    tags = forms.RegexField(
        required=False,
        regex=r'^[A-Za-z0-9\- ]+$')
    location = forms.CharField(required=False)

class OpenIdRegistrationForm(forms.Form):
    username = forms.RegexField(regex=r'^\w+$',
                                max_length=30,
                                min_length=3,
                                widget=forms.TextInput(attrs=attrs_dict),
                                label=_(u'username'))
    email = forms.EmailField(required=False, widget=forms.TextInput(attrs=dict(attrs_dict,
                                                               maxlength=75)),
                             label=_(u'email address'))
    
    def clean_username(self):
        """
        Validate that the username is alphanumeric and is not already
        in use.
        
        """
        try:
            user = User.objects.get(username__iexact=self.cleaned_data['username'])
        except User.DoesNotExist:
            return self.cleaned_data['username']
        raise forms.ValidationError(_(u'This username is already taken. Please choose another.'))