自定义Hive权限控制(4) 扩展Hive以实现自定义权限控制
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2022-05-19 08:13:48
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在前3节中,已经就 hive 权限控制 进行了基础数据的维护,现在用户权限配置功能已经实现。并且可以通过界面话的方式进行维护和管理。接着,最重要的事情就是针对Hive源码的修改。 主要是针对org.apache. hadoop . hive .conf.HiveConf及org.apache. hadoop .
在前3节中,已经就hive权限控制进行了基础数据的维护,现在用户权限配置功能已经实现。并且可以通过界面话的方式进行维护和管理。接着,最重要的事情就是针对Hive源码的修改。
主要是针对org.apache.hadoop.hive.conf.HiveConf及org.apache.hadoop.hive.ql.Driver
首先针对我们的特定需求,
扩展org.apache.hadoop.hive.conf.HiveConf
??public static enum ConfVars { KUXUNUSER("hive.kuxun.username",""), //用户名 KUXUNPASSWORD("hive.kuxun.password",""),//密码 KUXUN_HIVESERVER_URL("hive.kuxun.hiveserver.url",""), //权限认证数据库地址 KUXUN_HIVESERVER_USER("hive.kuxun.hiveserver.username",""),//权限认证数据库用户名 KUXUN_HIVESERVER_PASSWORD("hive.kuxun.hiveserver.password",""),//权限认证数据库密码 KUXUN_RESERVE_A("hive.kuxun.resrver.a",""),//保留 KUXUN_RESERVE_B("hive.kuxun.resrver.b",""),//保留 KUXUN_RESERVE_C("hive.kuxun.resrver.c",""),//保留 KUXUN_RESERVE_D("hive.kuxun.resrver.d",""),//保留????????.......}
扩展org.apache.hadoop.hive.ql.Driver类
新增2个私有变量。用于存储传递来的用户和密码信息。
private String username ="";private String password ="";
在run()方法中增加获取username和password的实现
this.username = HiveConf.getVar(conf, HiveConf.ConfVars.KUXUNUSER);this.password = HiveConf.getVar(conf, HiveConf.ConfVars.KUXUNPASSWORD);
增加方法:
private void doAuthorizationExtend(BaseSemanticAnalyzer sem) throws HiveException, AuthorizationException { //获取用户权限信息 UserAuthDataMode ua ; try{ ua = new UserAuthDataMode(this.username,this.password,this.conf); ua.run(); }catch(Exception e){ throw new AuthorizationException(e.getMessage()); } if(ua.isSuperUser()){ LOG.error("current user is super user,do not check authorization."); return ; } LOG.warn("current user is ["+this.username+"]. start check authorization.......");????LOG.warn("current user["+this.username+"] execute command ["+this.userCommand+"].");? HashSet inputs = sem.getInputs(); SessionState ss = SessionState.get(); HiveOperation op = ss.getHiveOperation(); if (op != null) {}//不处理这种方式,hiveserver并不提供写入操作 LOG.debug("---------auth KUXUN--------------"); if (inputs != null && inputs.size() > 0) { if (inputs.size() > ua.getMaxMapCount()){ String errorMsg = "The max partition numbers which you can handler in one job is ["+ua.getMaxMapCount()+"],but current is ["+inputs.size()+"]. Pemission denied."; Exception ex = new Exception(errorMsg); throw new AuthorizationException(errorMsg,ex); } for (ReadEntity read : inputs) { if (read.getPartition() != null) { Table tbl = read.getTable(); String tblName = tbl.getTableName(); LOG.debug("-----dbName.tableName---------"+tbl.getDbName()+"."+tblName); String tblFullName = tbl.getDbName()+"."+tblName; //如果当前表所在db不在用户权限db中 ,同时表不在用户权限table中,则抛出异常 if(ua.getDbNameList().indexOf(tbl.getDbName()) partValueList = part.getValues(); List partList = tbl.getPartitionKeys(); int partSize = partList.size(); for (int i=0;i tsoTopMap = parseCtx .getTopToTable();? for (Map.Entry> topOpMap : querySem .getParseContext().getTopOps().entrySet()) { Operator extends Serializable> topOp = topOpMap .getValue(); if (topOp instanceof TableScanOperator && tsoTopMap.containsKey(topOp)) { TableScanOperator tableScanOp = (TableScanOperator) topOp; Table tbl = tsoTopMap.get(tableScanOp); String dbName = tbl.getDbName(); String tblName = tbl.getTableName(); List neededColumnIds = tableScanOp .getNeededColumnIDs(); List columns = tbl.getCols(); List cols = new ArrayList(); if (neededColumnIds != null){ LOG.debug("-------neededColumnIds-----"+neededColumnIds.size()); }else{ LOG.debug("-------neededColumnIds-----null"); } if (neededColumnIds != null && neededColumnIds.size() > 0) { for (int i = 0; i
在complie方法中增加自定义权限认证方法调用public int compile(String command, boolean resetTaskIds){??????try{???? ??doAuthorizationExtend(sem);??????}catch (AuthorizationException authExp){???? ??errorMessage ="FAILED:Kuxun Authorization failed:" + authExp.getMessage()??????????+ " Please contact anyoneking@163.com for your information." ;???? ??console.printError("Kuxun Authorization failed:" + authExp.getMessage()??????????????????+ "Please contact anyoneking@163.com for your information.");??????????????return 403;??????}}请注意:errorMessage在获取异常后,必须要进行赋值,否则通过hive client访问的时候,出现异常的时候不会给出异常提示,只会给出NUll。以上完成后,重新打包,放到hivelib下面就ok了。
同时要注意修改hive-site.xml以传递对应的信息。??hive.kuxun.username??test???hive.kuxun.password??test?????hive.kuxun.hiveserver.url??jdbc:mysql://localhost:3306/hiveserver??hiveserver jdbc connection url???hive.kuxun.hiveserver.username??test??username to use against hiveserver database???hive.kuxun.hiveserver.password??test??password to use against hiveserver database原文地址:自定义Hive权限控制(4) 扩展Hive以实现自定义权限控制, 感谢原作者分享。
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