dm.saml2 2.0

SAML2 support based on PyXB

This package provides support for SAML2 based on pyxb.

pyxb (http://pypi.python.org/pypi/PyXB) generates a Python class collection for an XML schema and provides means to convert between associated Python instances and xml documents. It is used to generate and parse SAML2 messages.

The package adds support for digital signatures and SAML2 bindings and metadata management.

Dependencies

PyXB

This package’s version has been tested with version 1.1.4 of pyxb. It may not work with other versions.

Class collections generated by pyxb tend to be very version dependent. Thus, they must usually be regenerated when the pyxb version has changed.

The current package’s version mostly uses class collections from the wssplat and saml20 bundles of pyxb. Thus, they have a good chance to be updated together with pyxb. However, the pyxb saml2 bundle lacks support for the so called SAML2 context classes. This package contains class collections generated with pyxb==1.1.4. They need to be regenerated if the pyxb version changes (and you use those classes – which is not very likely). The gen.sh script in subpackage pyxb can provide clues how to regenerate them.

A bug in pyxb 1.1.4 (http://sourceforge.net/apps/trac/pyxb/ticket/130#comment:4) prevents its installation via package managers (such as easy_install, pip, zc.buildout) for Python versions without os.path.relpath (this applies e.g. to Python 2.4). I work around this problem by downloading the pyxb source, apply patch http://sourceforge.net/apps/trac/pyxb/attachment/ticket/130/pyxb_setup.patch to it and then egg install the result. After this, dm.saml2 can be installed normally.

dm.xmlsec.binding

Check its installation notes should you face related installation problems.

Notes

Note that signature creation and verification will fail with an obscure error message from xmlsec when xmlsec is not properly initialized. Do not forget to call dm.xmlsec.binding.initialize().

History

2.0

Version 2.0 uses dm.xmlsec.binding as Python binding to the XML security library, rather then the no longer maintained pyxmlsec. This drastically facilitates installation.

1.0

Initial release based on pyxmlsec.