package com.skyline.common.util;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import com.skyline.base.type.Authority;
import com.skyline.user.model.Fan;
import com.skyline.user.model.User;
import com.skyline.user.service.AttentionService;
/**
* 权限的Util
*
* @author Jairus Chan
* @version 0.1
* */
public class AuthorityUtil {
private static AttentionService attentionService;
/**
* 初始化权限矩阵
*
* @param request
* HttpServletRequest 如果为null则取ThreadLocal中的request
* @param userid
* 用户本人，对于本人而言，访问权限为Authority.PRIVATE
* @param idols
* 用户的偶像，访问他的偶像时，访问权限为Authority.ONLY_TO FANS
*/
public static void initalAuthorityMatrix(HttpServletRequest request, Long userid, List<Fan> idols) {
Map<Long, Integer> authorityMatrix = new HashMap<Long, Integer>();
for (Fan idol : idols) {
// addAuthority(userid, Authority.PRIVATE, authorityMatrix,
// session);
authorityMatrix.put(idol.getIdolId(), Authority.ONLY_TO_FANS);
}
addAuthority(userid, Authority.PRIVATE, authorityMatrix, request);
}
/**
* 获取访问用户的权限
*
* @param request
* HttpServletRequest 如果为null则取ThreadLocal中的request
* @param userid
* 需要访问的用户
* @return
*/
public static Integer getAuthority(HttpServletRequest request, Long userId) {
Map<Long, Integer> authorityMatrix = getAuthorityMatrix(request);
User curUser = (User) WebHelper.getSessionAttribute(request, Constant.SESSION_USER);
if (authorityMatrix == null || curUser == null) {
return Authority.PUBLIC;
}
Integer authority = authorityMatrix.get(userId);
// 如果authority == null，则表示被请求的用户不在请求用户的权限矩阵中
if (authority != null) {
return authority;
}
// 同城暂时不用
// if (areTheyInSameCity()) {
// return Authority.
// } else
if (isFan(curUser.getId(), userId)) {
return Authority.ONLY_TO_FANS;
} else if (isManager()) {
return Authority.ADMIN;
} else {
return Authority.PUBLIC;
}
}
/**
* 获取整个权限矩阵
*
* @param request
* HttpServletRequest
* @return
*/
public static Map<Long, Integer> getAuthorityMatrix(HttpServletRequest request) {
@SuppressWarnings("unchecked")
Map<Long, Integer> authorityMatrix = (Map<Long, Integer>) WebHelper.getSessionAttribute(request, Constant.SESSION_AUTHORITY_MATRIX);
return authorityMatrix;
}
private static void addAuthority(Long userid, Integer authority, Map<Long, Integer> authorityMatrix, HttpServletRequest request) {
authorityMatrix.put(userid, authority);
WebHelper.setSessionAttribute(request, Constant.SESSION_AUTHORITY_MATRIX, authorityMatrix);
}
// @Deprecated
// private static boolean areTheyInSameCity() {
// return false;
// }
private static boolean isFan(Long curUserId, Long userId) {
if (attentionService == null) {
attentionService = SpringUtils.getBean(AttentionService.class);// Spring中AttentionService只有一个
}
return attentionService.isFan(curUserId, userId);
}
private static boolean isManager() {
return false;
}
}