add list, delete and edit comment of SSH public keys

- add sshkeys to hostingpackage detail view context
- implement new osusers.forms.EditSshPublicKeyCommentForm
- implement new views ListSshPublicKeys, DeleteSshPublicKey and
  EditSshPublicKeyComment
- add new URL patterns 'list_ssh_keys', 'edit_ssh_key_comment' and
  'delete_ssh_key'
- link from hosting package detail view to 'list_ssh_keys' when there are
  SSH keys assigned to the shown hosting package
- add new templates osusers/sshpublickey_list.html,
  osusers/sshpublickey_confirm_delete.html and
  osusers/sshpublickey_edit_comment
- add operating system user output to template
  osusers/sshpublickey_create.html
- add changelog entry

gnuviechadmin/osusers/views.py

@@ -4,10 +4,13 @@ This module defines the views for gnuviechadmin operating system user handling.
 """
 from __future__ import unicode_literals, absolute_import
 
+from django.core.urlresolvers import reverse
 from django.shortcuts import redirect
 from django.views.generic import (
-    UpdateView,
     CreateView,
+    DeleteView,
+    ListView,
+    UpdateView,
 )
 from django.utils.translation import ugettext as _
 from django.contrib import messages
@@ -18,6 +21,7 @@ from gvawebcore.views import HostingPackageAndCustomerMixin
 from .forms import (
     AddSshPublicKeyForm,
     ChangeOsUserPasswordForm,
+    EditSshPublicKeyCommentForm,
 )
 from .models import (
     SshPublicKey,
@@ -89,3 +93,70 @@ class AddSshPublicKey(
                 algorithm=key.algorithm)
         )
         return redirect(self.get_hosting_package())
+
+
+class ListSshPublicKeys(
+    HostingPackageAndCustomerMixin, StaffOrSelfLoginRequiredMixin, ListView
+):
+    model = SshPublicKey
+    context_object_name = 'keys'
+
+    def get_context_data(self, **kwargs):
+        context = super(ListSshPublicKeys, self).get_context_data(**kwargs)
+        context.update({
+            'hostingpackage': self.get_hosting_package(),
+            'customer': self.get_customer_object(),
+            'osuser': self.get_hosting_package().osuser.username,
+        })
+        return context
+
+
+class DeleteSshPublicKey(
+    HostingPackageAndCustomerMixin, StaffOrSelfLoginRequiredMixin, DeleteView
+):
+    model = SshPublicKey
+    context_object_name = 'key'
+
+    def get_context_data(self, **kwargs):
+        context = super(DeleteSshPublicKey, self).get_context_data(**kwargs)
+        context.update({
+            'hostingpackage': self.get_hosting_package(),
+            'customer': self.get_customer_object(),
+            'osuser': self.get_hosting_package().osuser.username,
+        })
+        return context
+
+    def get_success_url(self):
+        return reverse(
+            'list_ssh_keys', kwargs={'package': self.get_hosting_package().id}
+        )
+
+
+class EditSshPublicKeyComment(
+    HostingPackageAndCustomerMixin, StaffOrSelfLoginRequiredMixin, UpdateView
+):
+    model = SshPublicKey
+    context_object_name = 'key'
+    fields = ['comment']
+    template_name_suffix = '_edit_comment'
+    form_class = EditSshPublicKeyCommentForm
+
+    def get_form_kwargs(self):
+        kwargs = super(EditSshPublicKeyComment, self).get_form_kwargs()
+        kwargs['hostingpackage'] = self.get_hosting_package()
+        return kwargs
+
+    def get_context_data(self, **kwargs):
+        context = super(EditSshPublicKeyComment, self).get_context_data(
+            **kwargs)
+        context.update({
+            'hostingpackage': self.get_hosting_package(),
+            'customer': self.get_customer_object(),
+            'osuser': self.get_hosting_package().osuser.username,
+        })
+        return context
+
+    def get_success_url(self):
+        return reverse(
+            'list_ssh_keys', kwargs={'package': self.get_hosting_package().id}
+        )