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/* Copyright (c) 2017, 2025, Oracle and/or its affiliates.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License, version 2.0,
as published by the Free Software Foundation.
This program is designed to work with certain software (including
but not limited to OpenSSL) that is licensed under separate terms,
as designated in a particular file or component or in included license
documentation. The authors of MySQL hereby grant you an additional
permission to link the program and your derivative works with the
separately licensed software that they have either included with
the program or referenced in the documentation.
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. See the
GNU General Public License, version 2.0, for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
/**
@file regexp/errors.cc
This file contains the map from ICU warning and error codes and those in
MySQL.
*/
#include "errors.h"
#include <assert.h>
#include <cstddef>
#include <unordered_map>
#include "my_inttypes.h" // MYF
#include "my_sys.h" // my_error
#include "mysqld_error.h" // Error codes
#include "unicode/utypes.h" // UErrorCode
#include "sql/current_thd.h"
#include "sql/sql_error.h"
namespace regexp {
struct UErrorCodeHash {
std::size_t operator()(UErrorCode t) const { return t; }
};
/**
Map from ICU error codes to MySQL dittos. We strive to keep this list in the
same order as the enum UErrorCode in common/unicode/utypes.h.
*/
std::unordered_map<UErrorCode, int, UErrorCodeHash> error_map = {
// ICU Error code MySQL error code
{U_USING_DEFAULT_WARNING, ER_WARN_REGEXP_USING_DEFAULT},
{U_ILLEGAL_ARGUMENT_ERROR, ER_REGEXP_ILLEGAL_ARGUMENT},
{U_MISSING_RESOURCE_ERROR, ER_REGEXP_MISSING_RESOURCE},
{U_FILE_ACCESS_ERROR, ER_REGEXP_MISSING_FILE},
// Recent versions of ICU are returning "Incorrect Unicode property".
// Map it to the same as the more generic U_ILLEGAL_ARGUMENT_ERROR.
{U_REGEX_PROPERTY_SYNTAX, ER_REGEXP_ILLEGAL_ARGUMENT},
{U_INDEX_OUTOFBOUNDS_ERROR, ER_REGEXP_INDEX_OUTOFBOUNDS_ERROR},
{U_BUFFER_OVERFLOW_ERROR, ER_REGEXP_BUFFER_OVERFLOW},
{U_REGEX_INTERNAL_ERROR, ER_REGEXP_INTERNAL_ERROR},
{U_REGEX_RULE_SYNTAX, ER_REGEXP_RULE_SYNTAX},
{U_REGEX_BAD_ESCAPE_SEQUENCE, ER_REGEXP_BAD_ESCAPE_SEQUENCE},
{U_REGEX_UNIMPLEMENTED, ER_REGEXP_UNIMPLEMENTED},
{U_REGEX_MISMATCHED_PAREN, ER_REGEXP_MISMATCHED_PAREN},
{U_REGEX_BAD_INTERVAL, ER_REGEXP_BAD_INTERVAL},
{U_REGEX_MAX_LT_MIN, ER_REGEXP_MAX_LT_MIN},
{U_REGEX_INVALID_BACK_REF, ER_REGEXP_INVALID_BACK_REF},
{U_REGEX_LOOK_BEHIND_LIMIT, ER_REGEXP_LOOK_BEHIND_LIMIT},
{U_REGEX_MISSING_CLOSE_BRACKET, ER_REGEXP_MISSING_CLOSE_BRACKET},
{U_REGEX_INVALID_RANGE, ER_REGEXP_INVALID_RANGE},
{U_REGEX_STACK_OVERFLOW, ER_REGEXP_STACK_OVERFLOW},
{U_REGEX_STOPPED_BY_CALLER, ER_QUERY_INTERRUPTED},
{U_REGEX_TIME_OUT, ER_REGEXP_TIME_OUT},
{U_REGEX_PATTERN_TOO_BIG, ER_REGEXP_PATTERN_TOO_BIG},
{U_REGEX_INVALID_CAPTURE_GROUP_NAME, ER_REGEXP_INVALID_CAPTURE_GROUP_NAME},
{U_REGEX_INVALID_FLAG, ER_REGEXP_INVALID_FLAG},
{U_REGEX_NUMBER_TOO_BIG, ER_REGEX_NUMBER_TOO_BIG}};
bool check_icu_status(UErrorCode status, const UParseError *parse_error) {
if (status == U_ZERO_ERROR) return false;
int error_code = error_map[status];
// Add notification for select status codes.
// E.g. we have lots of U_STRING_NOT_TERMINATED_WARNING,
// don't generate any NOTE for those.
if (U_SUCCESS(status)) {
if (error_code != 0) {
push_warning(current_thd, Sql_condition::SL_NOTE, error_code, nullptr);
}
return false;
}
if (error_code == 0) {
/*
If this fires, there is no translation from this ICU status code to a
MySQL error/warning. This means an new error should then be added. In
release builds, we just get e.g. "Got error 'U_REGEX_TIME_OUT' from
regexp".
*/
assert(false);
my_error(ER_REGEXP_ERROR, MYF(0), u_errorName(status));
return true;
}
// The UParseError is only written to in case of U_REGEX_RULE_SYNTAX errors.
if (error_code == ER_REGEXP_RULE_SYNTAX && parse_error != nullptr)
my_error(error_code, MYF(0), parse_error->line, parse_error->offset);
else
my_error(error_code, MYF(0));
return true;
}
} // namespace regexp
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