wlyy2.0/base/common-security/src/main/java/com.yihu.base.security/hander/BaseAuthenticationSuccessHandler.java

/**
 *
 */
package com.yihu.base.security.hander;

import com.fasterxml.jackson.databind.ObjectMapper;
import org.apache.commons.codec.binary.StringUtils;
import org.apache.commons.collections.MapUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.core.Authentication;
import org.springframework.security.crypto.codec.Base64;
import org.springframework.security.oauth2.common.OAuth2AccessToken;
import org.springframework.security.oauth2.common.exceptions.UnapprovedClientAuthenticationException;
import org.springframework.security.oauth2.provider.*;
import org.springframework.security.oauth2.provider.token.AuthorizationServerTokenServices;
import org.springframework.security.oauth2.provider.token.DefaultTokenServices;
import org.springframework.security.web.authentication.SavedRequestAwareAuthenticationSuccessHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.UnsupportedEncodingException;

/**
 * @author chenweida
 * <p>
 * 账号密码提交需要在 head 中添加 Basic clientID:cliengSecurty
 */
@Component("BaseAuthenticationSuccessHandler")
public class BaseAuthenticationSuccessHandler extends SavedRequestAwareAuthenticationSuccessHandler {

    private Logger logger = LoggerFactory.getLogger(getClass());

    private ObjectMapper objectMapper = new ObjectMapper();
    @Autowired
    private ClientDetailsService clientDetailsService;
    @Autowired
    private AuthorizationServerTokenServices defaultTokenServices;

    /*
     * (non-Javadoc)
     *
     * @see org.springframework.security.web.authentication.
     * AuthenticationSuccessHandler#onAuthenticationSuccess(javax.servlet.http.
     * HttpServletRequest, javax.servlet.http.HttpServletResponse,
     * org.springframework.security.core.Authentication)
     */
    @Override
    public void onAuthenticationSuccess(HttpServletRequest request, HttpServletResponse response,
                                        Authentication authentication) throws IOException, ServletException {
        String header = request.getHeader("Authorization");
        if (org.springframework.util.StringUtils.isEmpty(header) ||(! header.startsWith("Basic "))) {
            throw new UnapprovedClientAuthenticationException("请求头没有client信息");
        }
        //解析头部的basic信息
        String[] tokens = extractAndDecodeHeader(header, request);
        assert tokens.length == 2;

        String clientId = tokens[0];
        String clientSecurity = tokens[1];
        //得到ClientDetails
        ClientDetails clientDetails = clientDetailsService.loadClientByClientId(clientId);

        if (clientDetails == null) {
            throw new UnapprovedClientAuthenticationException("clientId不存在 client:" + clientId);
        } else if (!StringUtils.equals(clientDetails.getClientSecret(), clientSecurity)) {
            throw new UnapprovedClientAuthenticationException("clientSecurity 不匹配 client:" + clientId);
        }

        TokenRequest tokenRequest = new TokenRequest(MapUtils.EMPTY_MAP, clientId, clientDetails.getScope(), "custom_password");

        OAuth2Request oAuth2Request = tokenRequest.createOAuth2Request(clientDetails);

        OAuth2Authentication oAuth2Authentication = new OAuth2Authentication(oAuth2Request, authentication);

        OAuth2AccessToken token = defaultTokenServices.createAccessToken(oAuth2Authentication);

        response.setContentType("application/json;charset=UTF-8");
        response.getWriter().write(objectMapper.writeValueAsString(token));

    }


    /**
     * 解析
     *
     * @param header
     * @param request
     * @return
     * @throws IOException
     */
    private String[] extractAndDecodeHeader(String header, HttpServletRequest request)
            throws IOException {

        byte[] base64Token = header.substring(6).getBytes("UTF-8");
        byte[] decoded;
        try {
            decoded = Base64.decode(base64Token);
        } catch (IllegalArgumentException e) {
            throw new BadCredentialsException(
                    "Failed to decode basic authentication token");
        }

        String token = new String(decoded, "UTF-8");

        int delim = token.indexOf(":");

        if (delim == -1) {
            throw new BadCredentialsException("Basic 信息不合法");
        }
        return new String[]{token.substring(0, delim), token.substring(delim + 1)};
    }

    public static void main(String[] args) throws UnsupportedEncodingException {
        System.out.println(new String(Base64.encode("cwd:cwd".getBytes()), "UTF-8"));//   Y3dkOmN3ZA==
    }
}