[Zope] Zope PAS for pubcookie authentication

[Jens Vagelpohl]

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On 22 Nov 2006, at 00:06, cristopher pierson ewing wrote:
>> As the mapping tells you, the plugin responsible for getting these  
>> credentials is "credentials_basic_auth", which is most likely a  
>> HTTPBasicAuthHelper plugin, and you will see it right in your  
>> PluggableAuthService object.
> Again, you are right.  The only question I have remaining is how  
> the 'extractor' key in the credentials gets set.  I've looked up  
> the interface for this method, and looked up the method being used  
> in the HTTPBasicAuthHelper.py file, and the tuple that method  
> returns, called 'cred' doesn't contain such a key.  I'm just  
> curious here, trying to get a handle on the logical flow of the  
> authentication process.  My PAS plugin works well with only an  
> authenticateCredentials method.

The place where the "extractor" key is set is not within the plugin  
itself, it's not very obvious. If you take a look at the  
_extractUserIds method on the PluggableAuthService object itself  
you'll see how the PluggableAuthService iterates over the available  
credentials extraction modules and then adds the key to the  
credentials mapping for any extraction attempt that does return  
credentials.

This might seem crude to most people, but for questions like this I  
always use "grep" to find out where the keyword is referenced.

jens


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