I think I've tried everything reasonable to figure this
out on my own and have failed on all attempts.
I need to get turbine authenticating users against a
database for a proof-of-concept application I'm
building at work. We're likely to replace an internal
application framework with turbine if we can present a
compelling example. I've lost track of all the
different permutations I've tried to make this work.
For now, I just want to use the security classes that
come with turbine, unless I'm mistaken about how those
are supposed to work. And for this app I want to use
velocity for the templating.
<!-- begin Login.vm -->
#if ($data.Message)
<blockquote>
$data.Message
</blockquote>
#end
<form method="post" action="$link.setPage("Index.vm")">
<pre>
username <input type="text" name="username">
password <input type="password" name="password">
<input type="hidden" name="action" value="LoginUser">
<input type="submit" value="login">
</pre>
<form>
<!-- end Login.vm -->
<!-- begin Index.vm -->
login succeeded!<br>
<!-- end Index.vm -->
If I try to log in as username=turbine and
password=turbine I want to see the Index.vm. If I try
to use anything else I want to be bounced back to to
Login.vm and see the default error message that the
username or password is wrong.
If I understand correctly, for this example, I could
create a DefaultScreen that extends VelocityScreen and
does nothing. If that's not the case, then I'll need
to write Login.java and Index.java as no-opp
extensions of VelocityScreen.
I can't believe this is even remotely difficult, but
I've spent three days failing to get even this much
working. I believe I just need some simple combination
of settings in the TurbineResources.properties file.
If you like, assume I have a running copy of TDK 1.1a10
peer example set up on a linux box using mysql as the
database. Or if you prefer, assume I have a running
copy of Tomcat 4.0 beta 1 installed and running, and a
recent CVS checkout of turbine.
About your audience: I've got only three weeks of
exposure to turbine, about three months of java, nine
months of object programming, and twenty years of
computer experience you don't want to hear about. 8^)
What needs tweeking in TurbineResources.properties?
What classes must I build?
What am I missing?
Please educate me.
-Eric
ps. I explored the following resources before coming
to you for help:
TDK
turbine documentation and javadocs
UML sequence diagrams built from the Turbine source
code (code from Wednesday 31 Jan 2001, I think).
turbine faq
turbine mail archives (If the answer is in that
haystack, I'll welcome the search string that will
locate the needle. 8^)
scarab (Followed a suggestion I found in the archive. I
checked out the latest code, as of Friday 2 Feb 2001,
and built it. No joy. When I tried to log in I got a
stack trace that I don't have at hand.)
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