[libvirt] [PATCH sandbox] docker: don't assume X-Docker-Token is set

[Cedric Bosdonnat]

On Mon, 2015-09-21 at 22:12 +0200, Cedric Bosdonnat wrote:
> On Mon, 2015-09-21 at 15:12 +0100, Daniel P. Berrange wrote:
> > The Red Hat docker registry (registry.access.redhat.com) does
> > not set any X-Docker-Token HTTP header in its responses. Change
> > the code so it only passes around this header if it is actually
> > present.
> > 
> > Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> > ---
> >  libvirt-sandbox/image/sources/DockerSource.py | 12 ++++++++----
> >  1 file changed, 8 insertions(+), 4 deletions(-)
> > 
> > diff --git a/libvirt-sandbox/image/sources/DockerSource.py b/libvirt-sandbox/image/sources/DockerSource.py
> > index f367c8f..78b2a53 100644
> > --- a/libvirt-sandbox/image/sources/DockerSource.py
> > +++ b/libvirt-sandbox/image/sources/DockerSource.py
> > @@ -83,10 +83,14 @@ class DockerSource(Source):
> >          checksums = {}
> >          for layer in data:
> >              pass
> > +
> > +        headers = {}
> > +        if token is not None:
> > +            headers["Authorization"] = "Token" + token
> >          (data, res) = self._get_json(template,
> >                                       registryendpoint,
> >                                       "/v1/repositories" + template.path + "/tags",
> > -                                     { "Authorization": "Token " + token })
> > +                                     headers)
> >  
> >          cookie = res.info().getheader('Set-Cookie')
> >  
> > @@ -98,7 +102,7 @@ class DockerSource(Source):
> >          (data, res) = self._get_json(template,
> >                                       registryendpoint,
> >                                       "/v1/images/" + imagetagid + "/ancestry",
> > -                                     { "Authorization": "Token "+ token })
> > +                                     headers)
> >  
> >          if data[0] != imagetagid:
> >              raise ValueError(["Expected first layer id '%s' to match image id '%s'",
> > @@ -121,7 +125,7 @@ class DockerSource(Source):
> >                      res = self._save_data(template,
> >                                            registryendpoint,
> >                                            "/v1/images/" + layerid + "/json",
> > -                                          { "Authorization": "Token " + token },
> > +                                          headers,
> >                                            jsonfile)
> >                      createdFiles.append(jsonfile)
> >  
> > @@ -134,7 +138,7 @@ class DockerSource(Source):
> >                      self._save_data(template,
> >                                      registryendpoint,
> >                                      "/v1/images/" + layerid + "/layer",
> > -                                    { "Authorization": "Token "+token },
> > +                                    headers,
> >                                      datafile, datacsum, layersize)
> >                      createdFiles.append(datafile)
> >  
> 
> ACK

Hum, after some real life testing, I'm getting an error from the default
docker registry with this patch:

Fetching
https://registry-1.docker.io/v1/repositories/opensuse/tags...FAIL HTTP
Error 401: UNAUTHORIZED

--
Cedric