In the registration form, check if the mail address already exists.

2 files changed, 9 insertions, 4 deletions

diff --git a/app.py b/app.py
index edb0fb5..523e38d 100644
--- a/app.py
+++ b/app.py
@@ -80,8 +80,6 @@ def index():
 @templated('register.html')
 @logout_required
 def register():
-    #TODO: check for double uids
-    #TODO: check for double mails
     form = RegisterForm(request.form, csrf_enabled=False)
     if request.method == 'POST' and form.validate():
         send_register_confirmation_mail(form.username.data, form.mail.data)
diff --git a/forms.py b/forms.py
index 516c8ca..06c7800 100644
--- a/forms.py
+++ b/forms.py
@@ -35,8 +35,15 @@ class RegisterForm(Form):
             raise ValidationError(u'Dieser Benutzername ist schon vergeben.')
 
     def validate_mail(form, field):
-        #TODO
-        pass
+        try:
+            g.ldap.get_by_mail(field.data)
+        except NoSuchUserError:
+            pass
+        else:
+            raise ValidationError(Markup(u'Ein Benutzername mit dieser Adresse existiert bereits. '
+                                         u'Falls du deinen Benutzernamen vergessen hast, kannst du die '
+                                         u'<a href="%s">Passwort-vergessen-Funktion</a> benutzen'
+                                         % url_for('lost_password')))
 
 class AdminCreateAccountForm(RegisterForm):
     def validate_username(form, field):