/*
 * Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
 *
 * This program is free software: you can use, redistribute, and/or modify
 * it under the terms of the GNU Affero General Public License, version 3
 * or later ("AGPL"), as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#include "catalog.h"
#include "cmdnodes.h"
#include "parInt.h"

typedef struct SAuthCxt {
  SParseContext*   pParseCxt;
  SParseMetaCache* pMetaCache;
  int32_t          errCode;
} SAuthCxt;

typedef struct SSelectAuthCxt {
  SAuthCxt*    pAuthCxt;
  SSelectStmt* pSelect;
} SSelectAuthCxt;

typedef struct SAuthRewriteCxt {
  STableNode* pTarget;
} SAuthRewriteCxt;

static int32_t authQuery(SAuthCxt* pCxt, SNode* pStmt);

static int32_t setUserAuthInfo(SParseContext* pCxt, const char* pDbName, const char* pTabName, AUTH_TYPE type,
                               bool isView, bool effective, SUserAuthInfo* pAuth) {
  if (effective) {
    snprintf(pAuth->user, sizeof(pAuth->user), "%s", pCxt->pEffectiveUser ? pCxt->pEffectiveUser : "");
  } else {
    snprintf(pAuth->user, sizeof(pAuth->user), "%s", pCxt->pUser);
  }

  if (NULL == pTabName) {
    int32_t code = tNameSetDbName(&pAuth->tbName, pCxt->acctId, pDbName, strlen(pDbName));
    if (TSDB_CODE_SUCCESS != code) return code;
  } else {
    toName(pCxt->acctId, pDbName, pTabName, &pAuth->tbName);
  }
  pAuth->type = type;
  pAuth->isView = isView;
  return TSDB_CODE_SUCCESS;
}

static int32_t checkAuthImpl(SAuthCxt* pCxt, const char* pDbName, const char* pTabName, AUTH_TYPE type, SNode** pCond,
                             bool isView, bool effective) {
  SParseContext* pParseCxt = pCxt->pParseCxt;
  if (pParseCxt->isSuperUser) {
    return TSDB_CODE_SUCCESS;
  }

  AUTH_RES_TYPE auth_res_type = isView ? AUTH_RES_VIEW : AUTH_RES_BASIC;
  SUserAuthInfo authInfo = {0};
  int32_t       code = setUserAuthInfo(pCxt->pParseCxt, pDbName, pTabName, type, isView, effective, &authInfo);
  if (TSDB_CODE_SUCCESS != code) return code;
  SUserAuthRes authRes = {0};
  if (NULL != pCxt->pMetaCache) {
    code = getUserAuthFromCache(pCxt->pMetaCache, &authInfo, &authRes);
#ifdef TD_ENTERPRISE
    if (isView && TSDB_CODE_PAR_INTERNAL_ERROR == code) {
      authInfo.isView = false;
      code = getUserAuthFromCache(pCxt->pMetaCache, &authInfo, &authRes);
    }
#endif
  } else {
    SRequestConnInfo conn = {.pTrans = pParseCxt->pTransporter,
                             .requestId = pParseCxt->requestId,
                             .requestObjRefId = pParseCxt->requestRid,
                             .mgmtEps = pParseCxt->mgmtEpSet};
    code = catalogChkAuth(pParseCxt->pCatalog, &conn, &authInfo, &authRes);
  }
  if (TSDB_CODE_SUCCESS == code && NULL != pCond) {
    *pCond = authRes.pCond[auth_res_type];
  }
  return TSDB_CODE_SUCCESS == code ? (authRes.pass[auth_res_type] ? TSDB_CODE_SUCCESS : TSDB_CODE_PAR_PERMISSION_DENIED)
                                   : code;
}

static int32_t checkAuth(SAuthCxt* pCxt, const char* pDbName, const char* pTabName, AUTH_TYPE type, SNode** pCond) {
  return checkAuthImpl(pCxt, pDbName, pTabName, type, pCond, false, false);
}

static int32_t checkEffectiveAuth(SAuthCxt* pCxt, const char* pDbName, const char* pTabName, AUTH_TYPE type,
                                  SNode** pCond) {
  return checkAuthImpl(pCxt, pDbName, pTabName, type, NULL, false, true);
}

static int32_t checkViewAuth(SAuthCxt* pCxt, const char* pDbName, const char* pTabName, AUTH_TYPE type, SNode** pCond) {
  return checkAuthImpl(pCxt, pDbName, pTabName, type, NULL, true, false);
}

static int32_t checkViewEffectiveAuth(SAuthCxt* pCxt, const char* pDbName, const char* pTabName, AUTH_TYPE type,
                                      SNode** pCond) {
  return checkAuthImpl(pCxt, pDbName, pTabName, type, NULL, true, true);
}

static EDealRes authSubquery(SAuthCxt* pCxt, SNode* pStmt) {
  return TSDB_CODE_SUCCESS == authQuery(pCxt, pStmt) ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
}

static int32_t mergeStableTagCond(SNode** pWhere, SNode* pTagCond) {
  SLogicConditionNode* pLogicCond = NULL;
  int32_t              code = nodesMakeNode(QUERY_NODE_LOGIC_CONDITION, (SNode**)&pLogicCond);
  if (NULL == pLogicCond) {
    return code;
  }
  pLogicCond->node.resType.type = TSDB_DATA_TYPE_BOOL;
  pLogicCond->node.resType.bytes = tDataTypes[TSDB_DATA_TYPE_BOOL].bytes;
  pLogicCond->condType = LOGIC_COND_TYPE_AND;
  code = nodesListMakeStrictAppend(&pLogicCond->pParameterList, pTagCond);
  if (TSDB_CODE_SUCCESS == code) {
    code = nodesListMakeAppend(&pLogicCond->pParameterList, *pWhere);
  }
  if (TSDB_CODE_SUCCESS == code) {
    *pWhere = (SNode*)pLogicCond;
  } else {
    nodesDestroyNode((SNode*)pLogicCond);
  }
  return code;
}

EDealRes rewriteAuthTable(SNode* pNode, void* pContext) {
  if (QUERY_NODE_COLUMN == nodeType(pNode)) {
    SColumnNode*     pCol = (SColumnNode*)pNode;
    SAuthRewriteCxt* pCxt = (SAuthRewriteCxt*)pContext;
    tstrncpy(pCol->tableName, pCxt->pTarget->tableName, TSDB_TABLE_NAME_LEN);
    tstrncpy(pCol->tableAlias, pCxt->pTarget->tableAlias, TSDB_TABLE_NAME_LEN);
  }

  return DEAL_RES_CONTINUE;
}

static int32_t rewriteAppendStableTagCond(SNode** pWhere, SNode* pTagCond, STableNode* pTable) {
  SNode*  pTagCondCopy = NULL;
  int32_t code = nodesCloneNode(pTagCond, &pTagCondCopy);
  if (NULL == pTagCondCopy) {
    return code;
  }

  SAuthRewriteCxt cxt = {.pTarget = pTable};
  nodesWalkExpr(pTagCondCopy, rewriteAuthTable, &cxt);

  if (NULL == *pWhere) {
    *pWhere = pTagCondCopy;
    return TSDB_CODE_SUCCESS;
  }

  if (QUERY_NODE_LOGIC_CONDITION == nodeType(*pWhere) &&
      LOGIC_COND_TYPE_AND == ((SLogicConditionNode*)*pWhere)->condType) {
    return nodesListStrictAppend(((SLogicConditionNode*)*pWhere)->pParameterList, pTagCondCopy);
  }

  return mergeStableTagCond(pWhere, pTagCondCopy);
}

static EDealRes authSelectImpl(SNode* pNode, void* pContext) {
  SSelectAuthCxt* pCxt = pContext;
  SAuthCxt*       pAuthCxt = pCxt->pAuthCxt;
  bool            isView = false;
  if (QUERY_NODE_REAL_TABLE == nodeType(pNode)) {
    SNode*      pTagCond = NULL;
    STableNode* pTable = (STableNode*)pNode;
#ifdef TD_ENTERPRISE
    SName name = {0};
    toName(pAuthCxt->pParseCxt->acctId, pTable->dbName, pTable->tableName, &name);
    STableMeta* pTableMeta = NULL;
    toName(pAuthCxt->pParseCxt->acctId, pTable->dbName, pTable->tableName, &name);
    int32_t code = getTargetMetaImpl(
        pAuthCxt->pParseCxt, pAuthCxt->pMetaCache, &name, &pTableMeta, true);
    if (TSDB_CODE_SUCCESS == code && TSDB_VIEW_TABLE == pTableMeta->tableType) {
      isView = true;
    }
    taosMemoryFree(pTableMeta);
#endif
    if (!isView) {
      pAuthCxt->errCode = checkAuth(pAuthCxt, pTable->dbName, pTable->tableName, AUTH_TYPE_READ, &pTagCond);
      if (TSDB_CODE_SUCCESS != pAuthCxt->errCode && NULL != pAuthCxt->pParseCxt->pEffectiveUser) {
        pAuthCxt->errCode = checkEffectiveAuth(pAuthCxt, pTable->dbName, pTable->tableName, AUTH_TYPE_READ, NULL);
      }
      if (TSDB_CODE_SUCCESS == pAuthCxt->errCode && NULL != pTagCond) {
        pAuthCxt->errCode = rewriteAppendStableTagCond(&pCxt->pSelect->pWhere, pTagCond, pTable);
      }
    } else {
      pAuthCxt->errCode = checkViewAuth(pAuthCxt, pTable->dbName, pTable->tableName, AUTH_TYPE_READ, NULL);
      if (TSDB_CODE_SUCCESS != pAuthCxt->errCode && NULL != pAuthCxt->pParseCxt->pEffectiveUser) {
        pAuthCxt->errCode = checkViewEffectiveAuth(pAuthCxt, pTable->dbName, pTable->tableName, AUTH_TYPE_READ, NULL);
      }
    }
    return TSDB_CODE_SUCCESS == pAuthCxt->errCode ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
  } else if (QUERY_NODE_TEMP_TABLE == nodeType(pNode)) {
    return authSubquery(pAuthCxt, ((STempTableNode*)pNode)->pSubquery);
  }
  return DEAL_RES_CONTINUE;
}

static int32_t authSelect(SAuthCxt* pCxt, SSelectStmt* pSelect) {
  SSelectAuthCxt cxt = {.pAuthCxt = pCxt, .pSelect = pSelect};
  nodesWalkSelectStmt(pSelect, SQL_CLAUSE_FROM, authSelectImpl, &cxt);
  return pCxt->errCode;
}

static int32_t authSetOperator(SAuthCxt* pCxt, SSetOperator* pSetOper) {
  int32_t code = authQuery(pCxt, pSetOper->pLeft);
  if (TSDB_CODE_SUCCESS == code) {
    code = authQuery(pCxt, pSetOper->pRight);
  }
  return code;
}

static int32_t authDropUser(SAuthCxt* pCxt, SDropUserStmt* pStmt) {
  if (!pCxt->pParseCxt->isSuperUser || 0 == strcmp(pStmt->userName, TSDB_DEFAULT_USER)) {
    return TSDB_CODE_PAR_PERMISSION_DENIED;
  }
  return TSDB_CODE_SUCCESS;
}

static int32_t authDelete(SAuthCxt* pCxt, SDeleteStmt* pDelete) {
  SNode*      pTagCond = NULL;
  STableNode* pTable = (STableNode*)pDelete->pFromTable;
  int32_t     code = checkAuth(pCxt, pTable->dbName, pTable->tableName, AUTH_TYPE_WRITE, &pTagCond);
  if (TSDB_CODE_SUCCESS == code && NULL != pTagCond) {
    code = rewriteAppendStableTagCond(&pDelete->pWhere, pTagCond, pTable);
  }
  return code;
}

static int32_t authInsert(SAuthCxt* pCxt, SInsertStmt* pInsert) {
  SNode*      pTagCond = NULL;
  STableNode* pTable = (STableNode*)pInsert->pTable;
  // todo check tag condition for subtable
  int32_t code = checkAuth(pCxt, pTable->dbName, pTable->tableName, AUTH_TYPE_WRITE, &pTagCond);
  if (TSDB_CODE_SUCCESS == code) {
    code = authQuery(pCxt, pInsert->pQuery);
  }
  return code;
}

static int32_t authShowTables(SAuthCxt* pCxt, SShowStmt* pStmt) {
  return checkAuth(pCxt, ((SValueNode*)pStmt->pDbName)->literal, NULL, AUTH_TYPE_READ_OR_WRITE, NULL);
}

static int32_t authShowVtables(SAuthCxt* pCxt, SShowStmt* pStmt) {
  return authShowTables(pCxt, pStmt);
}

static int32_t authShowUsage(SAuthCxt* pCxt, SShowStmt* pStmt) {
  return checkAuth(pCxt, ((SValueNode*)pStmt->pDbName)->literal, NULL, AUTH_TYPE_READ_OR_WRITE, NULL);
}

static int32_t authShowCreateTable(SAuthCxt* pCxt, SShowCreateTableStmt* pStmt) {
  SNode* pTagCond = NULL;
  // todo check tag condition for subtable
  return checkAuth(pCxt, pStmt->dbName, pStmt->tableName, AUTH_TYPE_READ, &pTagCond);
}

static int32_t authShowCreateView(SAuthCxt* pCxt, SShowCreateViewStmt* pStmt) {
#ifndef TD_ENTERPRISE
  return TSDB_CODE_OPS_NOT_SUPPORT;
#endif

  return TSDB_CODE_SUCCESS;
}

static int32_t authCreateTable(SAuthCxt* pCxt, SCreateTableStmt* pStmt) {
  SNode* pTagCond = NULL;
  // todo check tag condition for subtable
  return checkAuth(pCxt, pStmt->dbName, NULL, AUTH_TYPE_WRITE, &pTagCond);
}

static int32_t authCreateVTable(SAuthCxt* pCxt, SCreateVTableStmt* pStmt) {
  PAR_ERR_RET(checkAuth(pCxt, pStmt->dbName, NULL, AUTH_TYPE_WRITE, NULL));
  SNode  *pCol = NULL;
  FOREACH(pCol, pStmt->pCols) {
    SColumnDefNode *pColDef = (SColumnDefNode*)pCol;
    if (NULL == pColDef) {
      PAR_ERR_RET(TSDB_CODE_PAR_INVALID_COLUMN);
    }
    SColumnOptions *pOptions = (SColumnOptions*)pColDef->pOptions;
    if (pOptions && pOptions->hasRef) {
      PAR_ERR_RET(checkAuth(pCxt, pOptions->refDb, pOptions->refTable, AUTH_TYPE_READ, NULL));
    }
  }
  return TSDB_CODE_SUCCESS;
}

static int32_t authCreateVSubTable(SAuthCxt* pCxt, SCreateVSubTableStmt* pStmt) {
  int32_t   code = TSDB_CODE_SUCCESS;
  SNode     *pNode = NULL;
  SNodeList* pTmpList = pStmt->pSpecificColRefs ? pStmt->pSpecificColRefs : pStmt->pColRefs;
  PAR_ERR_RET(checkAuth(pCxt, pStmt->dbName, NULL, AUTH_TYPE_WRITE, NULL));
  if (NULL == pTmpList) {
    // no column reference
    return TSDB_CODE_SUCCESS;
  }

  FOREACH(pNode, pTmpList) {
    SColumnRefNode *pColRef = (SColumnRefNode*)pNode;
    if (NULL == pColRef) {
      PAR_ERR_RET(TSDB_CODE_PAR_INVALID_COLUMN);
    }
    PAR_ERR_RET(checkAuth(pCxt, pColRef->refDbName, pColRef->refTableName, AUTH_TYPE_READ, NULL));
  }
  return code;
}

static int32_t authCreateStream(SAuthCxt* pCxt, SCreateStreamStmt* pStmt) {
  int32_t   code = TSDB_CODE_SUCCESS;

  if (IS_SYS_DBNAME(pStmt->streamDbName)) {
    return TSDB_CODE_PAR_PERMISSION_DENIED;
  }
  if (IS_SYS_DBNAME(pStmt->targetDbName)) {
    return TSDB_CODE_PAR_PERMISSION_DENIED;
  }
  if (pStmt->pTrigger) {
    SStreamTriggerNode *pTrigger = (SStreamTriggerNode*)pStmt->pTrigger;
    STableNode* pTriggerTable = (STableNode*)pTrigger->pTrigerTable;
    if (pTriggerTable && IS_SYS_DBNAME(pTriggerTable->dbName)) {
      return TSDB_CODE_PAR_PERMISSION_DENIED;
    }
  }
  return code;
}

static int32_t authCreateMultiTable(SAuthCxt* pCxt, SCreateMultiTablesStmt* pStmt) {
  int32_t code = TSDB_CODE_SUCCESS;
  SNode*  pNode = NULL;
  FOREACH(pNode, pStmt->pSubTables) {
    if (pNode->type == QUERY_NODE_CREATE_SUBTABLE_CLAUSE) {
      SCreateSubTableClause* pClause = (SCreateSubTableClause*)pNode;
      code = checkAuth(pCxt, pClause->dbName, NULL, AUTH_TYPE_WRITE, NULL);
      if (TSDB_CODE_SUCCESS != code) {
        break;
      }
    } else {
      SCreateSubTableFromFileClause* pClause = (SCreateSubTableFromFileClause*)pNode;
      code = checkAuth(pCxt, pClause->useDbName, NULL, AUTH_TYPE_WRITE, NULL);
      if (TSDB_CODE_SUCCESS != code) {
        break;
      }
    }
  }
  return code;
}

static int32_t authDropTable(SAuthCxt* pCxt, SDropTableStmt* pStmt) {
  int32_t code = TSDB_CODE_SUCCESS;
  if (pStmt->withOpt && !pCxt->pParseCxt->isSuperUser) {
    return TSDB_CODE_PAR_PERMISSION_DENIED;
  }
  SNode* pNode = NULL;
  FOREACH(pNode, pStmt->pTables) {
    SDropTableClause* pClause = (SDropTableClause*)pNode;
    code = checkAuth(pCxt, pClause->dbName, pClause->tableName, AUTH_TYPE_WRITE, NULL);
    if (TSDB_CODE_SUCCESS != code) {
      break;
    }
  }
  return code;
}

static int32_t authDropStable(SAuthCxt* pCxt, SDropSuperTableStmt* pStmt) {
  if (pStmt->withOpt && !pCxt->pParseCxt->isSuperUser) {
    return TSDB_CODE_PAR_PERMISSION_DENIED;
  }
  return checkAuth(pCxt, pStmt->dbName, pStmt->tableName, AUTH_TYPE_WRITE, NULL);
}

static int32_t authDropVtable(SAuthCxt* pCxt, SDropVirtualTableStmt* pStmt) {
  if (pStmt->withOpt && !pCxt->pParseCxt->isSuperUser) {
    return TSDB_CODE_PAR_PERMISSION_DENIED;
  }
  return checkAuth(pCxt, pStmt->dbName, pStmt->tableName, AUTH_TYPE_WRITE, NULL);
}

static int32_t authAlterTable(SAuthCxt* pCxt, SAlterTableStmt* pStmt) {
  SNode* pTagCond = NULL;
  // todo check tag condition for subtable
  return checkAuth(pCxt, pStmt->dbName, pStmt->tableName, AUTH_TYPE_WRITE, NULL);
}

static int32_t authAlterVTable(SAuthCxt* pCxt, SAlterTableStmt* pStmt) {
  PAR_ERR_RET(checkAuth(pCxt, pStmt->dbName, pStmt->tableName, AUTH_TYPE_WRITE, NULL));
  if (pStmt->alterType == TSDB_ALTER_TABLE_ADD_COLUMN_WITH_COLUMN_REF ||
      pStmt->alterType == TSDB_ALTER_TABLE_ALTER_COLUMN_REF) {
    PAR_ERR_RET(checkAuth(pCxt, pStmt->dbName, pStmt->refTableName, AUTH_TYPE_READ, NULL));
  }
  PAR_RET(TSDB_CODE_SUCCESS);
}

static int32_t authCreateView(SAuthCxt* pCxt, SCreateViewStmt* pStmt) {
#ifndef TD_ENTERPRISE
  return TSDB_CODE_OPS_NOT_SUPPORT;
#endif
  return checkAuth(pCxt, pStmt->dbName, NULL, AUTH_TYPE_WRITE, NULL);
}

static int32_t authDropView(SAuthCxt* pCxt, SDropViewStmt* pStmt) {
#ifndef TD_ENTERPRISE
  return TSDB_CODE_OPS_NOT_SUPPORT;
#endif
  return checkViewAuth(pCxt, pStmt->dbName, pStmt->viewName, AUTH_TYPE_ALTER, NULL);
}

static int32_t authQuery(SAuthCxt* pCxt, SNode* pStmt) {
  switch (nodeType(pStmt)) {
    case QUERY_NODE_SET_OPERATOR:
      return authSetOperator(pCxt, (SSetOperator*)pStmt);
    case QUERY_NODE_SELECT_STMT:
      return authSelect(pCxt, (SSelectStmt*)pStmt);
    case QUERY_NODE_DROP_USER_STMT:
      return authDropUser(pCxt, (SDropUserStmt*)pStmt);
    case QUERY_NODE_DELETE_STMT:
      return authDelete(pCxt, (SDeleteStmt*)pStmt);
    case QUERY_NODE_INSERT_STMT:
      return authInsert(pCxt, (SInsertStmt*)pStmt);
    case QUERY_NODE_CREATE_TABLE_STMT:
      return authCreateTable(pCxt, (SCreateTableStmt*)pStmt);
    case QUERY_NODE_CREATE_VIRTUAL_TABLE_STMT:
      return authCreateVTable(pCxt, (SCreateVTableStmt*)pStmt);
    case QUERY_NODE_CREATE_VIRTUAL_SUBTABLE_STMT:
      return authCreateVSubTable(pCxt, (SCreateVSubTableStmt*)pStmt);
    case QUERY_NODE_CREATE_MULTI_TABLES_STMT:
      return authCreateMultiTable(pCxt, (SCreateMultiTablesStmt*)pStmt);
    case QUERY_NODE_CREATE_STREAM_STMT:
      return authCreateStream(pCxt, (SCreateStreamStmt*)pStmt);
    case QUERY_NODE_DROP_TABLE_STMT:
      return authDropTable(pCxt, (SDropTableStmt*)pStmt);
    case QUERY_NODE_DROP_SUPER_TABLE_STMT:
      return authDropStable(pCxt, (SDropSuperTableStmt*)pStmt);
    case QUERY_NODE_DROP_VIRTUAL_TABLE_STMT:
      return authDropVtable(pCxt, (SDropVirtualTableStmt*)pStmt);
    case QUERY_NODE_ALTER_TABLE_STMT:
    case QUERY_NODE_ALTER_SUPER_TABLE_STMT:
      return authAlterTable(pCxt, (SAlterTableStmt*)pStmt);
    case QUERY_NODE_ALTER_VIRTUAL_TABLE_STMT:
      return authAlterVTable(pCxt, (SAlterTableStmt*)pStmt);
    case QUERY_NODE_SHOW_DNODES_STMT:
    case QUERY_NODE_SHOW_MNODES_STMT:
    case QUERY_NODE_SHOW_MODULES_STMT:
    case QUERY_NODE_SHOW_QNODES_STMT:
    case QUERY_NODE_SHOW_SNODES_STMT:
    case QUERY_NODE_SHOW_BACKUP_NODES_STMT:
    case QUERY_NODE_SHOW_CLUSTER_STMT:
    case QUERY_NODE_SHOW_LICENCES_STMT:
    case QUERY_NODE_SHOW_VGROUPS_STMT:
    case QUERY_NODE_SHOW_DB_ALIVE_STMT:
    case QUERY_NODE_SHOW_CLUSTER_ALIVE_STMT:
    case QUERY_NODE_SHOW_CREATE_DATABASE_STMT:
    case QUERY_NODE_SHOW_TABLE_DISTRIBUTED_STMT:
    case QUERY_NODE_SHOW_DNODE_VARIABLES_STMT:
    case QUERY_NODE_SHOW_VNODES_STMT:
    case QUERY_NODE_SHOW_SCORES_STMT:
    case QUERY_NODE_SHOW_USERS_STMT:
    case QUERY_NODE_SHOW_USERS_FULL_STMT:
    case QUERY_NODE_SHOW_USER_PRIVILEGES_STMT:
    case QUERY_NODE_SHOW_GRANTS_FULL_STMT:
    case QUERY_NODE_SHOW_GRANTS_LOGS_STMT:
    case QUERY_NODE_SHOW_CLUSTER_MACHINES_STMT:
    case QUERY_NODE_SHOW_ARBGROUPS_STMT:
    case QUERY_NODE_SHOW_ENCRYPTIONS_STMT:
      return !pCxt->pParseCxt->enableSysInfo ? TSDB_CODE_PAR_PERMISSION_DENIED : TSDB_CODE_SUCCESS;
    case QUERY_NODE_SHOW_USAGE_STMT:
    case QUERY_NODE_SHOW_ANODES_STMT:
    case QUERY_NODE_SHOW_ANODES_FULL_STMT:
      return TSDB_CODE_SUCCESS;
    case QUERY_NODE_SHOW_TABLES_STMT:
    case QUERY_NODE_SHOW_STABLES_STMT:
      return authShowTables(pCxt, (SShowStmt*)pStmt);
    case QUERY_NODE_SHOW_VTABLES_STMT:
      return authShowVtables(pCxt, (SShowStmt*)pStmt);
    case QUERY_NODE_SHOW_CREATE_TABLE_STMT:
    case QUERY_NODE_SHOW_CREATE_VTABLE_STMT:
    case QUERY_NODE_SHOW_CREATE_STABLE_STMT:
      return authShowCreateTable(pCxt, (SShowCreateTableStmt*)pStmt);
      //    case QUERY_NODE_SHOW_CREATE_VIEW_STMT:
      //      return authShowCreateView(pCxt, (SShowCreateViewStmt*)pStmt);
    case QUERY_NODE_CREATE_VIEW_STMT:
      return authCreateView(pCxt, (SCreateViewStmt*)pStmt);
    case QUERY_NODE_DROP_VIEW_STMT:
      return authDropView(pCxt, (SDropViewStmt*)pStmt);
    default:
      break;
  }

  return TSDB_CODE_SUCCESS;
}

int32_t authenticate(SParseContext* pParseCxt, SQuery* pQuery, SParseMetaCache* pMetaCache) {
  SAuthCxt cxt = {.pParseCxt = pParseCxt, .pMetaCache = pMetaCache, .errCode = TSDB_CODE_SUCCESS};
  return authQuery(&cxt, pQuery->pRoot);
}