Details
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Type:
New Feature
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Status:
Open
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Priority:
Major
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Resolution: Unresolved
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Affects Version/s: Grails-Crowd 0.3
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Fix Version/s: None
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Component/s: None
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Labels:None
Description
It would be great to be able to register a "Crowd Event Listener" which can receive notification of successful and unsuccessful login attempts.
For example, I would really like to create and save User object when that user has been successfully authenticated by Crowd.
Activity
Nick, you could possibly achieve this using a filter (ie without requiring changes to the plugin). Create a class called ApplicationFilters in grails-app\conf:
import org.codehaus.grails.plugins.crowd.util.CrowdAuthUtils class ApplicationFilters { def dependsOn = [crowd:0.3] def filters = { saveUser(controller:'*', action:'*') { after = { if (CrowdAuthUtils.isAuthenticated(request)) { if (!session.usersaved) { println 'saving user' session.usersaved = true } } } } } }
Of course, I'm thinking you'll be doing something other than println 'saving user' 
There still might be a more elegant solution to this problem – using a session variable to track whether the user has been saved or not may be a little uncool, plus, I'm not loving having to put the version of the crowd plugin in dependsOn.
import org.codehaus.grails.plugins.crowd.util.CrowdAuthUtils class ApplicationFilters { def dependsOn = [crowd:0.3] def filters = { saveUser(controller:'*', action:'*') { after = { if (CrowdAuthUtils.isAuthenticated(request)) { if (!session.usersaved) { println 'saving user' session.usersaved = true } } } } } }
There still might be a more elegant solution to this problem – using a session variable to track whether the user has been saved or not may be a little uncool, plus, I'm not loving having to put the version of the crowd plugin in dependsOn.
Ooo. That would be pretty cool. I'll see if I can't figure out the Grails event lifecycle (I imagine it's Spring-like) so we could add something like this. If you have any ideas (or code) Nick, please let me know.