// GetResource opens the resource (metadata/blob), if it exists, via
// the HTTP API and returns it. If it does not exist or hasn't been
// uploaded yet then errors.NotFound is returned.
func (c *UnitFacadeClient) GetResource(resourceName string) (resource.Resource, io.ReadCloser, error) {
var response *http.Response
req, err := api.NewHTTPDownloadRequest(resourceName)
if err != nil {
return resource.Resource{}, nil, errors.Annotate(err, "failed to build API request")
}
if err := c.Do(req, nil, &response); err != nil {
return resource.Resource{}, nil, errors.Annotate(err, "HTTP request failed")
}
// HACK(katco): Combine this into one request?
resourceInfo, err := c.getResourceInfo(resourceName)
if err != nil {
return resource.Resource{}, nil, errors.Trace(err)
}
// TODO(katco): Check headers against resource info
// TODO(katco): Check in on all the response headers
return resourceInfo, response.Body, nil
}
func (s *LegacyHTTPHandlerSuite) TestIntegration(c *gc.C) {
opened := resourcetesting.NewResource(c, s.stub, "spam", "a-service", "some data")
s.store.ReturnOpenResource = opened
s.deps.ReturnConnect = s.store
h := server.NewLegacyHTTPHandler(s.deps.Connect)
req, err := api.NewHTTPDownloadRequest("spam")
c.Assert(err, jc.ErrorIsNil)
req.URL, err = url.ParseRequestURI("https://api:17017/units/eggs/1/resources/spam?:resource=spam")
c.Assert(err, jc.ErrorIsNil)
resp := &fakeResponseWriter{
stubResponseWriter: s.resp,
}
h.ServeHTTP(resp, req)
resp.checkWritten(c, "some data", http.Header{
"Content-Type": []string{api.ContentTypeRaw},
"Content-Length": []string{"9"}, // len("some data")
"Content-Sha384": []string{opened.Fingerprint.String()},
})
}
