Links for RBHTTPAuthBackend
RBHTTPAuthBackend-0.2-py2.7.egg
RBHTTPAuthBackend-0.2.tar.gz
RBHTTPAuthBackend-0.1-py2.7.egg
RBHTTPAuthBackend-0.1.tar.gz
http://www.reviewboard.org/
http://www.reviewboard.org/docs/codebase/dev/extending/legacy-auth-backends/