[SAMLv2] change the way content is stored and loaded for the HTTP-Artifact binding

Previously content was stored as the result of lasso_node_dump method
then reloaded, and then serialized again as part of the ArtifactResponse
message. lasso_node_dump was ignoring all hint to sign node, but keeping
the needed parameters around. That's not what must be done, the
signature should happen at the generation of the artifact and the result
must manipulated as is (i.e. XML content) and never moved back to the
land of LassoNode objects.

Now the content is:
- first removed of any signature at the message level, because the
  ArtifactResponse will take care of this, (any signature under this
  level (like at the assertion) is kept),
- serialized using lasso_node_export_to_xml,
- reloaded using lasso_xml_parse_memory,
- and put into the ArtifactResponse using a
  lasso_misc_text_node_new_with_xml_node.

0 files changed, 0 insertions, 0 deletions