Added 'Forgot Password' function.

TODO.txt

@@ -2,7 +2,6 @@
 - Copy Event
 - Tourenreferent managed Gruppen der Subreferenten
 - Placeholder von forms in config/app_config
-- Passwort vergessen Funktion
 
 - Besserer Zurück-Button in Formulare
 - uhrzeitfelder ohne widget

dav_events/emails.py

@@ -64,8 +64,6 @@ class AbstractMail(object):
         raise NotImplementedError()
 
     def send(self):
-        if not app_config.settings.enable_email_notifications:
-            return None
         subject = self._get_subject()
         body = self._get_body()
         sender = self._sender
@@ -94,6 +92,11 @@ class AbstractEventMail(AbstractMail):
         context.update(self._event.get_template_context())
         return context
 
+    def send(self):
+        if not app_config.settings.enable_email_notifications:
+            return None
+        return super(AbstractMail, self).send()
+
 
 class NewEventMail(AbstractEventMail):
     _template_name = 'dav_events/emails/new_event.txt'

dav_events/forms/auth.py

@@ -62,3 +62,15 @@ class SetPasswordForm(forms.Form):
         if commit:
             self.user.save()
         return self.user
+
+
+class ResetPasswordForm(forms.Form):
+    username = auth_forms.UsernameField(
+        max_length=254,
+        label=_(u'E-Mail-Adresse'),
+        widget=forms.TextInput(attrs={'autofocus': True}),
+    )
+
+    def clean_username(self):
+        username = self.cleaned_data.get('username')
+        return username.lower()

dav_events/templates/dav_events/auth/login_form.html

@@ -15,6 +15,7 @@
             <form action="" method="post">
                 {% csrf_token %}
                 {% bootstrap_form form %}
+                <div class="pull-right"><a href="{% url 'dav_events:reset_password' %}">{% trans 'Passwort vergessen?' %}</a></div>
                 {% buttons %}
                 <button type="submit" class="btn btn-success">
                     {% bootstrap_icon 'log-in' %}&thinsp;

dav_events/templates/dav_events/auth/reset_password_form.html

@@ -0,0 +1,35 @@
+{% extends "dav_events/base.html" %}
+{% load bootstrap3 %}
+{% load i18n %}
+
+{% block head-title %}{% trans 'Passwort vergessen?' %} - {{ user }} - {{ block.super }}{% endblock head-title %}
+
+{% block page-container %}
+<div class="row">
+    <div class="col-sm-2">
+        &nbsp;
+    </div>
+    <div class="col-sm-8">
+        <h3>{% trans 'Passwort vergessen?' %}</h3>
+        <div class="well">
+            <form action="" method="post">
+                {% csrf_token %}
+                {% bootstrap_form form %}
+                {% buttons %}
+                <button type="submit" class="btn btn-success">
+                    {% bootstrap_icon 'saved' %}&thinsp;
+                    {% trans 'Neues Passwort per E-Mail zusenden' %}
+                </button>
+                <a class="btn btn-danger" href="{% url 'dav_events:home' %}">
+                    {% bootstrap_icon 'remove' %}&thinsp;
+                    {% trans 'Abbrechen' %}
+                </a>
+                {% endbuttons %}
+            </form>
+        </div>
+    </div>
+    <div class="col-sm-3">
+        &nbsp;
+    </div>
+</div>
+{% endblock page-container %}

dav_events/urls.py

@@ -7,6 +7,7 @@ urlpatterns = [
     url(r'^user/login$', views.auth.LoginView.as_view(), name='login'),
     url(r'^user/logout$', views.auth.LogoutView.as_view(), name='logout'),
     url(r'^user/password$', views.auth.SetPasswordView.as_view(), name='set_password'),
+    url(r'^user/password/reset$', views.auth.ResetPasswordView.as_view(), name='reset_password'),
     url(r'^events$', views.events.EventListView.as_view(), name='event_list'),
     url(r'^events/create$', views.events.EventCreateView.as_view(), name='event_create'),
     url(r'^events/export$', views.events.EventListExportView.as_view(), name='event_list_export'),

dav_events/views/auth.py

@@ -1,8 +1,9 @@
 import logging
 from django.contrib import messages
-from django.contrib.auth import views as auth_views
+from django.contrib.auth import views as auth_views, get_user_model
 from django.urls import reverse_lazy
 from django.utils.translation import ugettext as _
+from django.views import generic
 
 from .. import emails
 from .. import forms
@@ -46,3 +47,26 @@ class SetPasswordView(auth_views.PasswordChangeView):
             email = emails.PasswordSetEmail(self.request.user, form.cleaned_data['new_password'])
             email.send()
         return r
+
+
+class ResetPasswordView(generic.FormView):
+    form_class = forms.auth.ResetPasswordForm
+    template_name = 'dav_events/auth/reset_password_form.html'
+    success_url = reverse_lazy('dav_events:login')
+
+    def form_valid(self, form):
+        username = form.cleaned_data.get('username')
+        user_model = get_user_model()
+        try:
+            user = user_model.objects.get(username=username)
+            random_password = user_model.objects.make_random_password(length=12)
+            user.set_password(random_password)
+            user.save()
+            email = emails.PasswordSetEmail(user, random_password)
+            email.send()
+            messages.success(self.request, _(u'Neues Passwort versendet.'))
+            logger.info('Password reset for user \'%s\'', username)
+        except user_model.DoesNotExist:
+            logger.warning('Password reset for unknown user \'%s\'', username)
+
+        return super(ResetPasswordView, self).form_valid(form)