Add UNICAST-DIRECT method to image restore

Previously the only method (in the form select) was "UNICAST". This
patch enables specifying a correct parameter for the underlying script
to fetch the image to be restored.

UNICAST-DIRECT makes the administrator transfer the image through the
network. UNICAST-CACHE indicates the taget pc to search for the image in
its cache partition.

Also redirects to the /scopes when ogserver responds with 200 OK.

ogcp/forms/action_forms.py

@@ -49,7 +49,8 @@ class ImageRestoreForm(FlaskForm):
     partition = SelectField(label=_('Partition'), choices=[])
     image = SelectField(label=_('Image'), choices=[])
     method = SelectField(label=_('Method'),
-                         choices=[('UNICAST', 'Unicast')])
+                         choices=[('UNICAST-CACHE', 'Unicast Cache'),
+                                  ('UNICAST-DIRECT', 'Unicast Direct')])
     restore = SubmitField(label=_('Restore'))
 
 class ClientDetailsForm(FlaskForm):

ogcp/views.py

@@ -252,7 +252,7 @@ def action_image_restore():
                    'id': str(image['id'])}
         g.server.post('/image/restore', payload)
         if r.status_code == requests.codes.ok:
-            return make_response("200 OK", 200)
+            return redirect(url_for("scopes"))
         return make_response("400 Bad Request", 400)
     else:
         ips = parse_ips(request.args.to_dict())