--- a/reg/forms.py	Fri Apr 09 16:51:56 2010 +0530
+++ b/reg/forms.py	Mon Apr 12 02:57:25 2010 +0530
@@ -105,3 +105,55 @@
         if start_date > stop_date:
             raise forms.ValidationError('The event stops even before it starts. I am starting to wonder what kind of event is this.')
         return stop_date
+
+class PasswordResetForm(forms.Form):
+    """ check for the existance of user for the email.
+    Reset the password irrespective of active status.
+    """
+
+    email = forms.EmailField()
+
+    def clean_email(self):
+
+        email = self.cleaned_data['email']
+        try:
+            user = User.objects.get(email__iexact=email)
+            return email
+        except User.DoesNotExist:
+            raise forms.ValidationError("This not a registered email. Please enter a valid email.")
+
+class PasswordChangeForm(forms.Form):
+
+    old_password = forms.CharField(widget=forms.PasswordInput)
+    new_password = forms.CharField(widget=forms.PasswordInput)
+    confirm_password = forms.CharField(widget=forms.PasswordInput)
+
+    def clean_old_password(self):
+        """ authenticate the given password against username.
+        """
+
+        username = self.data['username']
+        old_password = self.cleaned_data['old_password']
+        user = authenticate(username=username, password=old_password)
+        if not user:
+            raise forms.ValidationError("Incorrect password")
+        return old_password
+
+
+    def clean_new_password(self):
+        """ check if the password contains only alphabets or digits or punctuation.
+        then check if the size of the password is optimal.
+        then check if both the given passwords match.
+        """
+
+        new_password = self.cleaned_data['new_password']
+
+        if new_password.strip(string.ascii_letters+string.punctuation+string.digits):
+            raise forms.ValidationError("Only alphabets, digits and punctuation symbols are allowed in password")
+
+        if not 8 <= len(new_password) <= 30:
+            raise forms.ValidationError("Password must be atleast 8 characters and at most 30 characters")
+
+        if not new_password == self.data['confirm_password']:
+            raise forms.ValidationError("Passwords do not match")
+