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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
*/
#include <gtest/gtest.h>
#include <my_sys.h>
#include "client/pattern_matcher.cc"
namespace mysql_client_test_ns {
class PatternMatcherTest : public ::testing::Test {
public:
CHARSET_INFO *cs_info;
protected:
void SetUp() override {
MY_CHARSET_LOADER loader;
cs_info = my_collation_get_by_name(&loader, "utf8mb4_0900_ai_ci", MYF(0));
}
};
/** Verifies that pattern list parsing is done correctly */
TEST_F(PatternMatcherTest, PatternParser) {
Pattern_matcher matcher;
EXPECT_EQ((size_t)0, matcher.add_patterns(":::"));
EXPECT_EQ((size_t)1, matcher.add_patterns(":First:"));
EXPECT_EQ((size_t)2, matcher.add_patterns("::First*:Second:"));
EXPECT_EQ((size_t)3, matcher.add_patterns(":1:Second::Third:"));
}
/** Verifies that default set of patterns is working */
TEST_F(PatternMatcherTest, DefaultPatterns) {
Pattern_matcher matcher;
matcher.add_patterns("*IDENTIFIED*:*PASSWORD*");
// positive tests - text should be matched
EXPECT_TRUE(matcher.is_matching("set password = 'mypass';", cs_info));
EXPECT_TRUE(matcher.is_matching("SET PASSWORD = 'mypass';", cs_info));
EXPECT_TRUE(matcher.is_matching(
"create user 'myuser'@'localhost' identified by 'mypass';", cs_info));
EXPECT_TRUE(matcher.is_matching(
"CREATE USER 'myuser'@'localhost' IDENTIFIED BY 'mypass';", cs_info));
// negative tests - text mustn't match
EXPECT_FALSE(matcher.is_matching("SELECT * FROM my_table;", cs_info));
EXPECT_FALSE(matcher.is_matching("DROP TABLE IF EXISTS my_table", cs_info));
EXPECT_FALSE(matcher.is_matching(
"UPDATE my_table SET name='Sakila' WHERE id=1", cs_info));
EXPECT_FALSE(matcher.is_matching(
"INSERT INTO my_table (my_col1,my_col2) VALUES(1,2);", cs_info));
EXPECT_FALSE(matcher.is_matching(
"GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'localhost';", cs_info));
}
/** Various wildcard pattern testing */
TEST_F(PatternMatcherTest, WildCard) {
Pattern_matcher matcher;
// ========== SINGLE CHARACTER PATTERNS ========== //
matcher.add_patterns("??SQL");
EXPECT_TRUE(matcher.is_matching("MySQL", cs_info));
EXPECT_TRUE(matcher.is_matching("NoSQL", cs_info));
EXPECT_FALSE(matcher.is_matching("SQL", cs_info));
EXPECT_FALSE(matcher.is_matching("xSQL", cs_info));
EXPECT_FALSE(matcher.is_matching("123SQL", cs_info));
matcher.clear();
matcher.add_patterns("S?L");
EXPECT_TRUE(matcher.is_matching("SQL", cs_info));
EXPECT_TRUE(matcher.is_matching("STL", cs_info));
EXPECT_FALSE(matcher.is_matching("SL", cs_info));
EXPECT_FALSE(matcher.is_matching("S123L", cs_info));
matcher.clear();
// ========== MULTI CHARACTER PATTERNS =========== //
matcher.add_patterns("My*");
EXPECT_TRUE(matcher.is_matching("My", cs_info));
EXPECT_TRUE(matcher.is_matching("MySQL", cs_info));
EXPECT_FALSE(matcher.is_matching("y123", cs_info));
matcher.clear();
matcher.add_patterns("FROM *-users");
EXPECT_TRUE(matcher.is_matching("FROM admin-users", cs_info));
EXPECT_TRUE(matcher.is_matching("FROM regular-users", cs_info));
EXPECT_FALSE(matcher.is_matching("FROM users", cs_info));
matcher.clear();
}
} // namespace mysql_client_test_ns
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