D-Net

package eu.dnetlib.uoaauthorizationlibrary.security;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;

import org.springframework.security.core.Authentication;

import org.springframework.security.core.userdetails.UserDetails;

import org.springframework.security.core.userdetails.UsernameNotFoundException;

import org.springframework.stereotype.Component;

@Component

public class AuthorizationProvider {

    private UserDetailsServiceImpl userDetailsService;

    @Autowired

    AuthorizationProvider(UserDetailsServiceImpl userDetailsService) {

        this.userDetailsService = userDetailsService;

    }

    public Authentication getAuthentication(String token) {

        try {

            UserDetails userDetails = userDetailsService.loadUserByUsername(token);

            return new UsernamePasswordAuthenticationToken(userDetails, "", userDetails.getAuthorities());

        } catch (UsernameNotFoundException e) {

            return null;

        }

    }

}