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MDEV-30995: JSON_SCHEMA_VALID is not validating case sensitive when using

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regex

Analysis:
When initializing Regexp_processor_pcre object, we set the PCRE2_CASELESS
flag which is responsible for case insensitive comparison.
Fix:
Unset the flag after initializing.
This commit is contained in:
Rucha Deodhar
2023-04-04 13:35:02 +05:30
parent 8939e21dc5
commit ee41fa38fc
4 changed files with 73 additions and 2 deletions
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39
mysql-test/main/func_json.result
View File

@ -4496,4 +4496,43 @@ ERROR HY000: Invalid value for keyword minContains
SET @schema_required='{"type":"object","required":[1,"str1", "str1"]}';
SELECT JSON_SCHEMA_VALID(@schema_required,'{"num1":1, "str1":"abc", "arr1":[1,2,3]}');
ERROR HY000: Invalid value for keyword required
#
# MDEV-30995: JSON_SCHEMA_VALID is not validating case sensitive when using regex
#
SET @schema_pattern='{
"type": "string",
"pattern": "[A-Z]"
}';
SELECT JSON_SCHEMA_VALID(@schema_pattern, '"a"');
JSON_SCHEMA_VALID(@schema_pattern, '"a"')
0
SET @schema_property_names='{
"PropertyNames":{
"pattern": "^I_"
}
}';
SELECT JSON_SCHEMA_VALID(@schema_property_names, '{"I_num":4}');
JSON_SCHEMA_VALID(@schema_property_names, '{"I_num":4}')
1
SELECT JSON_SCHEMA_VALID(@schema_property_names, '{"i_num":4}');
JSON_SCHEMA_VALID(@schema_property_names, '{"i_num":4}')
0
SET @schema_pattern_properties= '{
"patternProperties": {
"^I_": {"type":"number", "maximum":100},
"^S_" : {"type":"string", "maxLength":4}
}
}';
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"I_": 50}');
JSON_SCHEMA_VALID(@schema_pattern_properties, '{"I_": 50}')
1
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"I_": 150}');
JSON_SCHEMA_VALID(@schema_pattern_properties, '{"I_": 150}')
0
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"i_": 50}');
JSON_SCHEMA_VALID(@schema_pattern_properties, '{"i_": 50}')
1
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"i_": 150}');
JSON_SCHEMA_VALID(@schema_pattern_properties, '{"i_": 150}')
1
# End of 11.1 test

29
mysql-test/main/func_json.test
View File

@ -3399,4 +3399,33 @@ SET @schema_required='{"type":"object","required":[1,"str1", "str1"]}';
SELECT JSON_SCHEMA_VALID(@schema_required,'{"num1":1, "str1":"abc", "arr1":[1,2,3]}');
--echo #
--echo # MDEV-30995: JSON_SCHEMA_VALID is not validating case sensitive when using regex
--echo #
SET @schema_pattern='{
"type": "string",
"pattern": "[A-Z]"
}';
SELECT JSON_SCHEMA_VALID(@schema_pattern, '"a"');
SET @schema_property_names='{
"PropertyNames":{
"pattern": "^I_"
}
}';
SELECT JSON_SCHEMA_VALID(@schema_property_names, '{"I_num":4}');
SELECT JSON_SCHEMA_VALID(@schema_property_names, '{"i_num":4}');
SET @schema_pattern_properties= '{
"patternProperties": {
"^I_": {"type":"number", "maximum":100},
"^S_" : {"type":"string", "maxLength":4}
}
}';
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"I_": 50}');
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"I_": 150}');
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"i_": 50}');
SELECT JSON_SCHEMA_VALID(@schema_pattern_properties, '{"i_": 150}');
--echo # End of 11.1 test

1
sql/item_cmpfunc.h
View File

@ -3051,6 +3051,7 @@ public:
bool is_const() const { return m_is_const; }
void set_const(bool arg) { m_is_const= arg; }
CHARSET_INFO * library_charset() const { return m_library_charset; }
void unset_flag(int flag) { m_library_flags&= ~flag; }
};

6
sql/json_schema.cc
View File

@ -20,7 +20,7 @@
#include <m_string.h>
#include "json_schema.h"
#include "json_schema_helper.h"
#include "pcre2.h"
static HASH all_keywords_hash;
static Json_schema_keyword *create_json_schema_keyword(THD *thd)
@ -917,6 +917,7 @@ bool Json_schema_pattern::handle_keyword(THD *thd, json_engine_t *je,
str= (Item_string*)current_thd->make_string_literal((const char*)"",
0, repertoire);
re.init(je->s.cs, 0);
re.unset_flag(PCRE2_CASELESS);
return false;
}
@ -2219,7 +2220,7 @@ bool Json_schema_pattern_properties::handle_keyword(THD *thd,
return true;
}
str= (Item_string*)current_thd->make_string_literal((const char*)"",
str= (Item_string*)thd->make_string_literal((const char*)"",
0,
my_charset_repertoire(je->s.cs));
@ -2250,6 +2251,7 @@ bool Json_schema_pattern_properties::handle_keyword(THD *thd,
(size_t)(k_end-k_start),
repertoire);
curr_pattern_to_property->re.init(je->s.cs, 0);
curr_pattern_to_property->re.unset_flag(PCRE2_CASELESS);
curr_pattern_to_property->curr_schema=
new (thd->mem_root) List<Json_schema_keyword>;