Hello, I have integrated my own web apps with crowd. What I would like to have is an authentication fallback in case crowd is down. I plan to have a script to copy/sync the user password from the crowd database to my own application database. Once this is done, how can I validate a user password (send by my webapp) against the crowd encrypted one? Do you have any piece of code I could reuse?
We publish crowd-password-encoders as a reusable module for apps outside Crowd. You should just be able to depend on that (and a few other necessary libraries which that module assumes are provided) and use the password encoder classes directly.
I've put together a sample application which shows how to encode and validate passwords from outside Crowd: https://bitbucket.org/caspar-atlassian/crowd-password-encoder-sample-app (if anyone finds any problems with it, please raise them as BitBucket issues).
I vaguely recall possibly delegating to impls of Spring's PasswordEncoder interface in at least some cases? (check that rather than taking my word for it - you can download the Crowd source yourself from my.atlassian.com if you have a license.) Looking at the Spring PasswordEncoder docs, it is crazy similar, but we don't have direct implementations of the Spring PasswordEncoder interface that I know of: you'll have to do the tedious but trivial work of wrapping our impls yourself.
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