e537a0c479
Co-authored-by: wjhh2008 <wjh2006-1@163.com> Co-authored-by: GongYusen <986957406@qq.com> Co-authored-by: hy-guo <fqboyg@gmail.com>
118 lines
4.2 KiB
C++
118 lines
4.2 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_password.h"
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#include "sql/engine/expr/ob_expr_util.h"
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#include "lib/encrypt/ob_encrypted_helper.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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ObExprPassword::ObExprPassword(ObIAllocator &alloc)
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: ObStringExprOperator(alloc, T_FUN_SYS_PASSWORD, N_PASSWORD, 1, VALID_FOR_GENERATED_COL)
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{
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}
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ObExprPassword::~ObExprPassword()
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{
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}
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# define SHA_PASSWORD_CHAR_LENGTH (SHA_DIGEST_LENGTH * 2 + 2)
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int ObExprPassword::calc_result_type1(ObExprResType &type, ObExprResType &text,
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common::ObExprTypeCtx &type_ctx) const
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{
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int ret = OB_SUCCESS;
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type.set_type(ObVarcharType);
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type.set_length(SHA_PASSWORD_CHAR_LENGTH);
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type.set_collation_type(type_ctx.get_coll_type());
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type.set_collation_level(CS_LEVEL_COERCIBLE);
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text.set_calc_type(ObVarcharType);
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ObExprResType tmp_type;
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OZ(ObExprOperator::aggregate_charsets_for_string_result(tmp_type, &text, 1, type_ctx));
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OX(text.set_calc_collation_type(tmp_type.get_collation_type()));
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OX(text.set_calc_collation_level(tmp_type.get_collation_level()));
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return ret;
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}
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int ObExprPassword::cg_expr(ObExprCGCtx &, const ObRawExpr &, ObExpr &rt_expr) const
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{
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int ret = OB_SUCCESS;
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rt_expr.eval_func_ = eval_password;
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return ret;
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}
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int ObExprPassword::eval_password(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum)
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{
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int ret = OB_SUCCESS;
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ObDatum *arg = NULL;
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if (OB_FAIL(expr.eval_param_value(ctx, arg))) {
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LOG_ERROR("evaluate parameter value failed", K(ret), K(arg));
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} else if (arg->is_null()) {
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expr_datum.set_string("", 0);
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} else if (arg->get_string().empty()) {
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expr_datum.set_string("", 0);
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} else {
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ObEvalCtx::TempAllocGuard alloc_guard(ctx);
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char *enc_buf = static_cast<char *>(alloc_guard.get_allocator().alloc(SHA_PASSWORD_CHAR_LENGTH));
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if (enc_buf == NULL) {
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ret = OB_ALLOCATE_MEMORY_FAILED;
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LOG_ERROR("alloc memory failed", K(ret));
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} else {
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ObString tmp_str;
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ObString upp_str;
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ObString res_str;
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ObString str_in_ctx;
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tmp_str.assign_ptr(enc_buf, SHA_PASSWORD_CHAR_LENGTH);
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if (OB_FAIL(ObEncryptedHelper::encrypt_passwd_to_stage2(arg->get_string(), tmp_str))) {
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LOG_WARN("encrypt password failed", K(ret));
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} else if (OB_FAIL(ObCharset::toupper(ObCollationType::CS_TYPE_UTF8MB4_GENERAL_CI,
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tmp_str,
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upp_str,
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alloc_guard.get_allocator()))) {
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LOG_WARN("convert string to upper failed", K(ret), K(tmp_str));
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} else if (OB_FAIL(ObExprUtil::convert_string_collation(upp_str,
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ObCollationType::CS_TYPE_UTF8MB4_GENERAL_CI,
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res_str,
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expr.datum_meta_.cs_type_,
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alloc_guard.get_allocator()))) {
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LOG_WARN("convert string collation failed", K(ret), K(upp_str));
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} else if (OB_FAIL(ObExprUtil::deep_copy_str(res_str, str_in_ctx, ctx.get_expr_res_alloc()))) {
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LOG_WARN("failed to cpoy str to context", K(ret));
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} else {
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expr_datum.set_string(str_in_ctx);
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LOG_USER_WARN(OB_ERR_DEPRECATED_SYNTAX_NO_REP, "\'PASSWORD\'");
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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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DEF_SET_LOCAL_SESSION_VARS(ObExprPassword, raw_expr) {
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int ret = OB_SUCCESS;
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if (lib::is_mysql_mode()) {
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SET_LOCAL_SYSVAR_CAPACITY(1);
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EXPR_ADD_LOCAL_SYSVAR(share::SYS_VAR_COLLATION_SERVER);
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}
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return ret;
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}
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}
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}
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