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package cn.ibizlab.util.security;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import lombok.SneakyThrows;
import cn.ibizlab.util.annotation.DEField;
import cn.ibizlab.util.domain.EntityBase;
import cn.ibizlab.util.enums.DEPredefinedFieldType;
import cn.ibizlab.util.filter.QueryWrapperContext;
import cn.ibizlab.util.helper.DEFieldCacheMap;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.access.PermissionEvaluator;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.stereotype.Component;
import org.springframework.util.ObjectUtils;
import java.io.Serializable;
import java.lang.reflect.ParameterizedType;
import java.lang.reflect.Type;
import java.util.*;
import java.util.function.Consumer;
/**
* spring security 权限管理类
* 重写权限控制方法
*/
@Component
public class AuthPermissionEvaluator implements PermissionEvaluator {
@Value("${ibiz.enablePermissionValid:false}")
boolean enablePermissionValid; //是否开启权限校验
/**
* 服务接口鉴权
* @param authentication 用户
* @param entity 实体
* @param action 操作
* @return
*/
@Override
@SneakyThrows
public boolean hasPermission(Authentication authentication, Object entity, Object action) {
if(!enablePermissionValid){
return true;
}
Object principal = authentication.getPrincipal();
if(ObjectUtils.isEmpty(principal)){
return false;
}
AuthenticationUser authenticationUser= (AuthenticationUser) authentication.getPrincipal();
if(authenticationUser.getSuperuser()==1){
return true;
}
String strAction=String.valueOf(action);
Set<String> userAuthorities = getAuthorities(authentication,strAction);
if(userAuthorities.size()==0){
return false;
}
if(isAllData(strAction,userAuthorities)){
return true;
}
if(entity instanceof ArrayList){
List<EntityBase> entities= (List<EntityBase>) entity;
for(EntityBase entityBase: entities){
boolean result=actionValid(entityBase, strAction ,userAuthorities,authenticationUser);
if(!result){
return false;
}
}
}
else if (entity instanceof QueryWrapperContext){
QueryWrapperContext queryWrapperContext= (QueryWrapperContext) entity;
setPermissionCondToSearchContext(getEntity(queryWrapperContext),queryWrapperContext,userAuthorities,authenticationUser);
}
else{
EntityBase entityBase= (EntityBase) entity;
return actionValid(entityBase , strAction ,userAuthorities,authenticationUser);
}
return true;
}
/**
* 获取实体信息
* @param qc
* @return
*/
@SneakyThrows
private EntityBase getEntity(QueryWrapperContext qc){
EntityBase entity=null;
Type type =qc.getClass().getGenericSuperclass();
if(type instanceof ParameterizedType){
ParameterizedType parameterizedType= (ParameterizedType) qc.getClass().getGenericSuperclass();
Type [] typeArr= parameterizedType.getActualTypeArguments();
if(typeArr.length>0){
Class<EntityBase> entityClass = (Class) typeArr[0];
return entityClass.newInstance();
}
}
return entity;
}
/**
* 在searchContext中拼接权限条件
* @param entity 实体
* @param qc 查询上下文
* @param userAuthorities 用户权限
* @param authenticationUser 当前用户
*/
@SneakyThrows
private void setPermissionCondToSearchContext(EntityBase entity, QueryWrapperContext qc , Set<String> userAuthorities ,AuthenticationUser authenticationUser){
if(entity==null){
return ;
}
Map<String,String> permissionField=getPermissionField(entity);//获取组织、部门预置属性
String orgField=permissionField.get("orgfield");
String orgDeptField=permissionField.get("orgsecfield");
String createManField=permissionField.get("createmanfield");
Map<String, Set<String>> userInfo = authenticationUser.getOrgInfo();
Set<String> orgParent = userInfo.get("parentorg");
Set<String> orgChild = userInfo.get("suborg");
Set<String> orgDeptParent = userInfo.get("parentdept");
Set<String> orgDeptChild = userInfo.get("subdept");
Set<String> userOrg = new HashSet<>();
Set<String> userOrgDept = new HashSet<>();
Set<String> userCreateMan = new HashSet<>();
for(String authority:userAuthorities){
if(authority.endsWith("curorg")){ //本单位
userOrg.add(authenticationUser.getOrgid());
}
else if(authority.endsWith("porg")){//上级单位
userOrg.addAll(orgParent);
}
else if(authority.endsWith("sorg")){//下级单位
userOrg.addAll(orgChild);
}
else if(authority.endsWith("curorgdept")){//本部门
userOrgDept.add(authenticationUser.getMdeptid());
}
else if(authority.endsWith("porgdept")){//上级部门
userOrgDept.addAll(orgDeptParent);
}
else if(authority.endsWith("sorgdept")){//下级部门
userOrgDept.addAll(orgDeptChild);
}
else if (authority.endsWith("createman")){
userCreateMan.add(authority);
}
}
if(userOrg.size()==0 && userOrgDept.size()==0 && userCreateMan.size()==0){
qc.getSelectCond().apply("1<>1");
}
else{
Consumer<QueryWrapper> consumer = qw -> {
if(userOrg.size()>0){
Consumer<QueryWrapper> org = orgQw -> {
orgQw.in(orgField,userOrg);
};
qw.or(org);
}
if(userOrgDept.size()>0){
Consumer<QueryWrapper> dept = deptQw -> {
deptQw.in(orgDeptField,userOrgDept);
};
qw.or(dept);
}
if(userCreateMan.size()>0){
Consumer<QueryWrapper> createMan = createManQw -> {
createManQw.eq(createManField,authenticationUser.getUserid());
};
qw.or(createMan);
}
};
qc.getSelectCond().and(consumer);
}
}
@Override
public boolean hasPermission(Authentication authentication, Serializable id, String action, Object params) {
return true;
}
/**
* 获取用户权限资源
* @param authentication
* @param action
* @return
*/
private Set<String> getAuthorities(Authentication authentication , String action){
Collection authorities=authentication.getAuthorities();
Set<String> userAuthorities = new HashSet();
Iterator it = authorities.iterator();
while(it.hasNext()) {
GrantedAuthority authority = (GrantedAuthority)it.next();
if(authority.getAuthority().contains(action)){
userAuthorities.add(authority.getAuthority());
}
}
return userAuthorities;
}
/**
* 是否为全部数据
* @param action
* @param entityDataRange
* @return
*/
private boolean isAllData(String action , Set<String> entityDataRange) {
for(String dataRange : entityDataRange ){
if(dataRange.endsWith(String.format("%s-all",action))){
return true;
}
}
return false;
}
/**
* 实体行为权限校验
* @param entity
* @param userAuthorities
* @return
*/
private boolean actionValid(EntityBase entity, String action , Set<String> userAuthorities ,AuthenticationUser authenticationUser){
Map<String,String> permissionField=getPermissionField(entity);//获取组织、部门预置属性
String orgField=permissionField.get("orgfield");
String orgDeptField=permissionField.get("orgsecfield");
String createManField=permissionField.get("createmanfield");
Map<String, Set<String>> userInfo = authenticationUser.getOrgInfo();
Set<String> orgParent = userInfo.get("parentorg");
Set<String> orgChild = userInfo.get("suborg");
Set<String> orgDeptParent = userInfo.get("parentdept");
Set<String> orgDeptChild = userInfo.get("subdept");
Object orgFieldValue=entity.get(orgField);
Object orgDeptFieldValue=entity.get(orgDeptField);
Object crateManFieldValue=entity.get(createManField);
Set<String> userOrg = new HashSet<>();
Set<String> userOrgDept = new HashSet<>();
for(String authority:userAuthorities){
if(authority.endsWith("curorg")){ //本单位
userOrg.add(authenticationUser.getOrgid());
}
else if(authority.endsWith("porg")){//上级单位
userOrg.addAll(orgParent);
}
else if(authority.endsWith("sorg")){//下级单位
userOrg.addAll(orgChild);
}
else if(authority.endsWith("curorgdept")){//本部门
userOrgDept.add(authenticationUser.getMdeptid());
}
else if(authority.endsWith("porgdept")){//上级部门
userOrgDept.addAll(orgDeptParent);
}
else if(authority.endsWith("sorgdept")){//下级部门
userOrgDept.addAll(orgDeptChild);
}
}
if(action.endsWith("Create") || action.endsWith("Save")){
if(!ObjectUtils.isEmpty(orgFieldValue) && !userOrg.contains(orgFieldValue)){
return false;
}
if(!ObjectUtils.isEmpty(orgDeptFieldValue) && !userOrgDept.contains(orgDeptFieldValue)){
return false;
}
if(!ObjectUtils.isEmpty(crateManFieldValue) && !authenticationUser.getUserid().equals(crateManFieldValue)){
return false;
}
return true;
}
else{
if(!ObjectUtils.isEmpty(orgFieldValue) && userOrg.contains(orgFieldValue)){
return true;
}
if(!ObjectUtils.isEmpty(orgDeptFieldValue) && userOrgDept.contains(orgDeptFieldValue)){
return true;
}
if(!ObjectUtils.isEmpty(crateManFieldValue) && authenticationUser.getUserid().equals(crateManFieldValue)){
return true;
}
return false;
}
}
/**
* 获取实体权限字段 orgid/orgsecid
* @param entityBase
* @return
*/
private Map<String,String> getPermissionField(EntityBase entityBase){
Map<String,String> permissionFiled=new HashMap<>();
String orgField="orgid"; //组织属性
String orgDeptField="orgsecid"; //部门属性
String createManField="createman"; //创建人属性
DEFieldCacheMap.getFieldMap(entityBase.getClass().getName());
Map <String, DEField> preFields= DEFieldCacheMap.getDEFields(entityBase.getClass()); //从缓存中获取当前类预置属性
for (Map.Entry<String,DEField> entry : preFields.entrySet()){
String fieldName=entry.getKey();//获取注解字段
DEField fieldAnnotation=entry.getValue();//获取注解值
DEPredefinedFieldType prefieldType=fieldAnnotation.preType();
//用户配置系统预置属性-组织机构标识
if(prefieldType==prefieldType.ORGID){
orgField=fieldName;
}
//用户配置系统预置属性-部门标识
if(prefieldType==prefieldType.ORGSECTORID){
orgDeptField=fieldName;
}
//用户配置系统预置属性-部门标识
if(prefieldType==prefieldType.CREATEMAN){
createManField=fieldName;
}
}
permissionFiled.put("orgfield",orgField);
permissionFiled.put("orgsecfield",orgDeptField);
permissionFiled.put("createmanfield",createManField);
return permissionFiled;
}
}