recaptcha for conventional registration\n\

simpler email subscription form at registration\n\
fixed urls in rss feed\n\
added experimental remote password login api (cleartext password for remote site entered locally)\n\
included example for Mediawiki Authentication plugin\n\
very simple message to everyone management command

1 files changed, 151 insertions, 0 deletions

diff --git a/utils/forms.py b/utils/forms.py
new file mode 100644
index 00000000..c54056ca
--- /dev/null
+++ b/utils/forms.py
@@ -0,0 +1,151 @@
+from django import forms
+import re
+from django.utils.translation import ugettext as _
+from django.utils.safestring import mark_safe
+from django.conf import settings
+from django.http import str_to_unicode
+from django.contrib.auth.models import User
+import urllib
+
+DEFAULT_NEXT = '/' + getattr(settings, 'FORUM_SCRIPT_ALIAS')
+def clean_next(next):
+    if next is None:
+        return DEFAULT_NEXT
+    next = str_to_unicode(urllib.unquote(next), 'utf-8')
+    next = next.strip()
+    if next.startswith('/'):
+        return next
+    return DEFAULT_NEXT
+
+def get_next_url(request):
+    return clean_next(request.REQUEST.get('next'))
+
+class StrippedNonEmptyCharField(forms.CharField):
+    def clean(self,value):
+        value = value.strip()
+        if self.required and value == '':
+            raise forms.ValidationError(_('this field is required'))
+        return value
+
+class NextUrlField(forms.CharField):
+    def __init__(self):
+        super(NextUrlField,self).__init__(max_length = 255,widget = forms.HiddenInput(),required = False)
+    def clean(self,value):
+        return clean_next(value)
+
+login_form_widget_attrs = { 'class': 'required login' }
+username_re = re.compile(r'^[\w ]+$')
+
+class UserNameField(StrippedNonEmptyCharField):
+    RESERVED_NAMES = (u'fuck', u'shit', u'ass', u'sex', u'add',
+                       u'edit', u'save', u'delete', u'manage', u'update', 'remove', 'new')
+    def __init__(self,db_model=User, db_field='username', must_exist=False,skip_clean=False,label=_('choose a username'),**kw):
+        self.must_exist = must_exist
+        self.skip_clean = skip_clean
+        self.db_model = db_model 
+        self.db_field = db_field
+        error_messages={'required':_('user name is required'),
+                        'taken':_('sorry, this name is taken, please choose another'),
+                        'forbidden':_('sorry, this name is not allowed, please choose another'),
+                        'missing':_('sorry, there is no user with this name'),
+                        'multiple-taken':_('sorry, we have a serious error - user name is taken by several users'),
+                        'invalid':_('user name can only consist of letters, empty space and underscore'),
+                    }
+        if 'error_messages' in kw:
+            error_messages.update(kw['error_messages'])
+            del kw['error_messages']
+        super(UserNameField,self).__init__(max_length=30,
+                widget=forms.TextInput(attrs=login_form_widget_attrs),
+                label=label,
+                error_messages=error_messages,
+                **kw
+                )
+
+    def clean(self,username):
+        """ validate username """
+        if self.skip_clean == True:
+            return username
+        if hasattr(self, 'user_instance') and isinstance(self.user_instance, User):
+            if username == self.user_instance.username:
+                return username
+        try:
+            username = super(UserNameField, self).clean(username)
+        except forms.ValidationError:
+            raise forms.ValidationError(self.error_messages['required'])
+        if self.required and not username_re.search(username):
+            raise forms.ValidationError(self.error_messages['invalid'])
+        if username in self.RESERVED_NAMES:
+            raise forms.ValidationError(self.error_messages['forbidden'])
+        try:
+            user = self.db_model.objects.get(
+                    **{'%s' % self.db_field : username}
+            )
+            if user:
+                if self.must_exist:
+                    return username
+                else:
+                    raise forms.ValidationError(self.error_messages['taken'])
+        except self.db_model.DoesNotExist:
+            if self.must_exist:
+                raise forms.ValidationError(self.error_messages['missing'])
+            else:
+                return username
+        except self.db_model.MultipleObjectsReturned:
+            raise forms.ValidationError(self.error_messages['multiple-taken'])
+
+class UserEmailField(forms.EmailField):
+    def __init__(self,skip_clean=False,**kw):
+        self.skip_clean = skip_clean
+        super(UserEmailField,self).__init__(widget=forms.TextInput(attrs=dict(login_form_widget_attrs,
+            maxlength=200)), label=mark_safe(_('your email address')),
+            error_messages={'required':_('email address is required'),
+                            'invalid':_('please enter a valid email address'),
+                            'taken':_('this email is already used by someone else, please choose another'),
+                            },
+            **kw
+            )
+
+    def clean(self,email):
+        """ validate if email exist in database
+        from legacy register
+        return: raise error if it exist """
+        email = super(UserEmailField,self).clean(email.strip())
+        if self.skip_clean:
+            return email
+        if settings.EMAIL_UNIQUE == True:
+            try:
+                user = User.objects.get(email = email)
+                raise forms.ValidationError(self.error_messsages['taken'])
+            except User.DoesNotExist:
+                return email
+            except User.MultipleObjectsReturned:
+                raise forms.ValidationError(self.error_messages['taken'])
+        else:
+            return email 
+
+class SetPasswordForm(forms.Form):
+    password1 = forms.CharField(widget=forms.PasswordInput(attrs=login_form_widget_attrs),
+                                label=_('choose password'),
+                                error_messages={'required':_('password is required')},
+                                )
+    password2 = forms.CharField(widget=forms.PasswordInput(attrs=login_form_widget_attrs),
+                                label=mark_safe(_('retype password')),
+                                error_messages={'required':_('please, retype your password'),
+                                                'nomatch':_('sorry, entered passwords did not match, please try again')},
+                                )
+    def clean_password2(self):
+        """
+        Validates that the two password inputs match.
+        
+        """
+        if 'password1' in self.cleaned_data:
+            if self.cleaned_data['password1'] == self.cleaned_data['password2']:
+                self.password = self.cleaned_data['password2']
+                self.cleaned_data['password'] = self.cleaned_data['password2']
+                return self.cleaned_data['password2']
+            else:
+                del self.cleaned_data['password2']
+                raise forms.ValidationError(self.fields['password2'].error_messages['nomatch'])
+        else:
+            return self.cleaned_data['password2']
+