Emsley, I (Iain) wrote:
I'm trying to implement a JDBC realm to compare a cookie against a
database to authenticate an identity but my current application falls
over trying to get a password where one doesn't exist (they are checked
earlier on in the cycle in another section of the programme).

JDBCRealm (and DataSourceRealm) expect a username and password, and they're provided by an Authenticator configured elsewhere (e.g. FormAuthenticator).

Is there a way of overriding the getPassword which the Realm appears to
want or am I best off trying to put a custom realm together?

Maybe you could start over, and elaborate a little on what you're trying to achieve?

If you're attempting a 'remember me' type facility, for example, then you should look into SecurityFilter, which does this and a few other things rather well, and will save you writing and security testing your own authentication code.


p

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