content: package cn.datax.common.security.utils;
  
  import cn.datax.common.core.DataConstant;
  import cn.datax.common.core.DataRole;
  import cn.datax.common.core.DataUser;
  import cn.hutool.core.collection.CollUtil;
  import cn.hutool.core.util.StrUtil;
  import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
  import org.springframework.security.core.Authentication;
  import org.springframework.security.core.GrantedAuthority;
  import org.springframework.security.core.authority.AuthorityUtils;
  import org.springframework.security.oauth2.provider.token.UserAuthenticationConverter;
  import org.springframework.util.StringUtils;
  
  import java.util.Collection;
  import java.util.LinkedHashMap;
  import java.util.List;
  import java.util.Map;
  
  /**
   * 根据checktoken的结果转化用户信息
   *
   * @author AllDataDC
   * @date 2023/01/30
   */
  public class DataUserAuthenticationConverter implements UserAuthenticationConverter {
  
  	private static final String N_A = "N/A";
  
  	private Collection<? extends GrantedAuthority> defaultAuthorities;
  
  	public void setDefaultAuthorities(String[] defaultAuthorities) {
  		this.defaultAuthorities = AuthorityUtils.commaSeparatedStringToAuthorityList(StringUtils.arrayToCommaDelimitedString(defaultAuthorities));
  	}
  
  	@Override
  	public Map<String, ?> convertUserAuthentication(Authentication authentication) {
  		Map<String, Object> response = new LinkedHashMap();
  		response.put(USERNAME, authentication.getName());
  		if (authentication.getAuthorities() != null && !authentication.getAuthorities().isEmpty()) {
  			response.put(AUTHORITIES, AuthorityUtils.authorityListToSet(authentication.getAuthorities()));
  		}
  		return response;
  	}
  
  	@Override
  	public Authentication extractAuthentication(Map<String, ?> map) {
  		if (map.containsKey(USERNAME)) {
  			Object principal = map.get(USERNAME);
  			Collection<? extends GrantedAuthority> authorities = this.getAuthorities(map);
  
  			String id = (String) map.get(DataConstant.UserAdditionalInfo.USERID.getKey());
  			String username = (String) map.get(DataConstant.UserAdditionalInfo.USERNAME.getKey());
  			String nickname = (String) map.get(DataConstant.UserAdditionalInfo.NICKNAME.getKey());
  
  			String dept = (String) map.get(DataConstant.UserAdditionalInfo.DEPT.getKey());
  			List<DataRole> roles = (List<DataRole>) map.get(DataConstant.UserAdditionalInfo.ROLE.getKey());
  			List<String> posts = (List<String>) map.get(DataConstant.UserAdditionalInfo.POST.getKey());
  
  			DataUser user = new DataUser(id, nickname, username, N_A, true
  				, true, true, true, authorities);
  			if (StrUtil.isNotBlank(dept)){
  				user.setDept(dept);
  			}
  			if (CollUtil.isNotEmpty(roles)){
  				user.setRoles(roles);
  			}
  			if (CollUtil.isNotEmpty(posts)){
  				user.setPosts(posts);
  			}
  			return new UsernamePasswordAuthenticationToken(user, N_A, authorities);
  		} else {
  			return null;
  		}
  	}
  
  	private Collection<? extends GrantedAuthority> getAuthorities(Map<String, ?> map) {
  		if (!map.containsKey(AUTHORITIES)) {
  			return this.defaultAuthorities;
  		} else {
  			Object authorities = map.get(AUTHORITIES);
  			if (authorities instanceof String) {
  				return AuthorityUtils.commaSeparatedStringToAuthorityList((String)authorities);
  			} else if (authorities instanceof Collection) {
  				return AuthorityUtils.commaSeparatedStringToAuthorityList(StringUtils.collectionToCommaDelimitedString((Collection)authorities));
  			} else {
  				throw new IllegalArgumentException("Authorities must be either a String or a Collection");
  			}
  		}
  	}
  }
  