juick-server/src/main/java/com/juick/server/security/JuickAuthenticationProvider.java


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package com.juick.server.security;

import com.juick.server.security.entities.JuickUser;
import com.juick.service.UserService;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;

import javax.inject.Inject;
import java.util.Collections;

/**
 * Created by vitalyster on 25.11.2016.
 */
public class JuickAuthenticationProvider implements AuthenticationProvider {
    private final Logger logger = LoggerFactory.getLogger(getClass());

    @Inject
    private UserService userService;

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        String name = authentication.getName();
        String password = authentication.getCredentials().toString();

        boolean isAuthenticated = userService.checkPassword(name, password) > 0;

        logger.info("user {} authenticated: {}", name, isAuthenticated);

        return isAuthenticated ?
                new UsernamePasswordAuthenticationToken(name, password, JuickUser.USER_AUTHORITY) : null;
    }

    @Override
    public boolean supports(Class<?> authentication) {
        return authentication.equals(UsernamePasswordAuthenticationToken.class);
    }
}