e537a0c479
Co-authored-by: wjhh2008 <wjh2006-1@163.com> Co-authored-by: GongYusen <986957406@qq.com> Co-authored-by: hy-guo <fqboyg@gmail.com>
108 lines
3.8 KiB
C++
108 lines
3.8 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_ENG
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#include "sql/engine/expr/ob_expr_can_access_trigger.h"
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#include "share/schema/ob_schema_getter_guard.h"
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#include "objit/common/ob_item_type.h"
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#include "sql/session/ob_sql_session_info.h"
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#include "sql/engine/ob_exec_context.h"
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using namespace oceanbase::common;
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namespace oceanbase
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{
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namespace sql
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{
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ObExprCanAccessTrigger::ObExprCanAccessTrigger(ObIAllocator &alloc)
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: ObExprOperator(alloc, T_FUN_SYS_CAN_ACCESS_TRIGGER, N_CAN_ACCESS_TRIGGER, 2, NOT_VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION, true)
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{
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}
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ObExprCanAccessTrigger::~ObExprCanAccessTrigger()
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{
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}
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int ObExprCanAccessTrigger::calc_result_type2(ObExprResType &type,
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ObExprResType &type1,
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ObExprResType &type2,
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ObExprTypeCtx &type_ctx) const
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{
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UNUSED(type_ctx);
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int ret = OB_SUCCESS;
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type1.set_calc_type(ObVarcharType);
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type1.set_calc_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
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type2.set_calc_type(ObVarcharType);
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type2.set_calc_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
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type.set_type(ObInt32Type);
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return ret;
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}
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int ObExprCanAccessTrigger::can_access_trigger(const ObExpr &expr,
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ObEvalCtx &ctx,
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ObDatum &res_datum)
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{
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int ret = OB_SUCCESS;
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bool need_check = false;
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if (OB_FAIL(expr.eval_param_value(ctx))) {
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LOG_WARN("eval arg failed", K(ret));
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} else {
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ObDatum &database_name = expr.locate_param_datum(ctx, 0);
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ObDatum &table_name = expr.locate_param_datum(ctx, 1);
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OX (res_datum.set_true());
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ObSQLSessionInfo *session = ctx.exec_ctx_.get_my_session();
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ObSessionPrivInfo session_priv;
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if (OB_ISNULL(session)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("session is NULL", K(ret));
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} else if (OB_FAIL(session->check_feature_enable(
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ObCompatFeatureType::MYSQL_TRIGGER_PRIV_CHECK, need_check))) {
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LOG_WARN("failed to check feature enable", K(ret));
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} else if (need_check && lib::is_mysql_mode()) {
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if (OB_FAIL(session->get_session_priv_info(session_priv))) {
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LOG_WARN("faile to get session priv info", K(ret));
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} else {
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ObNeedPriv need_priv;
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need_priv.priv_level_ = OB_PRIV_TABLE_LEVEL;
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need_priv.db_ = database_name.get_string();
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need_priv.priv_set_ = OB_PRIV_TRIGGER;
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need_priv.table_ = table_name.get_string();
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share::schema::ObSchemaGetterGuard *schema_guard =
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ctx.exec_ctx_.get_sql_ctx()->schema_guard_;
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if (OB_ISNULL(schema_guard)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("schema guard is NULL", K(ret));
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} else {
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OZ (schema_guard->check_single_table_priv(session_priv, need_priv), K(need_priv), K(ret));
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if(OB_ERR_NO_TABLE_PRIVILEGE == ret) {
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ret = OB_SUCCESS;
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OX (res_datum.set_false());
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}
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}
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}
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}
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}
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return ret;
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}
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int ObExprCanAccessTrigger::cg_expr(ObExprCGCtx &op_cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const
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{
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UNUSED(raw_expr);
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UNUSED(op_cg_ctx);
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rt_expr.eval_func_ = ObExprCanAccessTrigger::can_access_trigger;
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return OB_SUCCESS;
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}
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}
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} |