package cn.opencil.oa.common.util;

import cn.opencil.oa.core.domain.User;
import org.apache.shiro.crypto.RandomNumberGenerator;
import org.apache.shiro.crypto.SecureRandomNumberGenerator;
import org.apache.shiro.crypto.hash.SimpleHash;
import org.apache.shiro.util.ByteSource;
import org.springframework.stereotype.Service;

/**
 * Created by mnzero on 16-9-11.
 */
@Service
public class PasswordHelper {
    private RandomNumberGenerator randomNumberGenerator = new SecureRandomNumberGenerator();

    private String algorithmName = "md5";
    private int hashIterations = 2;

    public void setRandomNumberGenerator(RandomNumberGenerator randomNumberGenerator) {
        this.randomNumberGenerator = randomNumberGenerator;
    }

    public void setAlgorithmName(String algorithmName) {
        this.algorithmName = algorithmName;
    }

    public void setHashIterations(int hashIterations) {
        this.hashIterations = hashIterations;
    }

    public void encryptPassword(User user) {
        String str = randomNumberGenerator.nextBytes().toHex();
        user.setSalt(randomNumberGenerator.nextBytes().toHex());
        String ts = user.getCredentialsSalt();
        String newPassword = new SimpleHash(
                algorithmName,
                user.getPassword(),
                ByteSource.Util.bytes(user.getCredentialsSalt()),
                hashIterations).toHex();

        user.setPassword(newPassword);
    }
}
