[gatein-issues] [JBoss JIRA] (GTNPORTAL-3414) Be able to intercept and process oauth principal into gatein user according to provider types

[Trong Tran (JIRA)]

     [ https://issues.jboss.org/browse/GTNPORTAL-3414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Trong Tran resolved GTNPORTAL-3414.
-----------------------------------

    Fix Version/s: 3.7.0.Final
                   3.8.0.Final
       Resolution: Done

    
> Be able to intercept and process oauth principal into gatein user according to provider types
> ---------------------------------------------------------------------------------------------
>
>                 Key: GTNPORTAL-3414
>                 URL: https://issues.jboss.org/browse/GTNPORTAL-3414
>             Project: GateIn Portal
>          Issue Type: Enhancement
>      Security Level: Public(Everyone can see) 
>            Reporter: Tuyen Nguyen The
>            Assignee: Trong Tran
>             Fix For: 3.7.0.Final, 3.8.0.Final
>
>         Attachments: linkedin-registration.png
>
>   Original Estimate: 4 hours
>          Time Spent: 7 hours
>  Remaining Estimate: 0 minutes
>
> When i register new account with LinkedIn, i see a registration form with random-string username prefilled (see attachment)
> It's because LinkedIn does not provide username as unique attribute for each user, so we have to get userid instead of username, and this is a random-string by LinkedIn
> Now, We can improvement method OAuthUtils#convertOAuthPrincipalToGateInUser() and customize the way to convert oauth-principal to gatein user for linkedIn.
> But when someone provide other oauth integration via extension, he can not customize OAuthUtils#convertOAuthPrincipalToGateInUser() method to generate gatein user by the way that oauth should do.
> So we should enable developer change the way to generate gatein user for each oauth provider via extension.
> To enable developer change the way to generate gatein user via extension, we will:
> - Introduce OAuthUserGenerator service and it can add OAuthUserGeneratorPlugin by extension. This service will response to generate gatein user from oauth-principal
> - Method OAuthUserGenerator#generateGateInUser(OAuthPrincipal principal) will do:
>   + Find OAuthUserGeneratorPlugin by oauthProviderType, 
>   + If found plugin for this oauth provider it will delegate method OAuthUserGeneratorPlugin#generateGateInUser()
>   + If not found, it will delegate to OAuthUtils#convertOAuthPrincipalToGateInUser() as default.

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