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MDEV-12982 JSON_EXTRACT returns data for invalid JSON.

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Let's check the validity to the end of the JSON.
This commit is contained in:
Alexey Botchkov 2017-09-12 11:20:30 +04:00
parent 31774f0ede
commit 6352ec2184
3 changed files with 14 additions and 0 deletions
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5
mysql-test/r/func_json.result
View file

@ -669,3 +669,8 @@ JSON_EXTRACT('{\"asdf\":true}', "$.\"asdf\"") = 1
select JSON_EXTRACT('{\"input1\":\"\\u00f6\"}', '$.\"input1\"');
JSON_EXTRACT('{\"input1\":\"\\u00f6\"}', '$.\"input1\"')
"\u00f6"
select JSON_EXTRACT('{"foo": "bar" foobar foo invalid ', '$.foo');
JSON_EXTRACT('{"foo": "bar" foobar foo invalid ', '$.foo')
NULL
Warnings:
Warning 4038 Syntax error in JSON text in argument 1 to function 'json_extract' at position 15

5
mysql-test/t/func_json.test
View file

@ -317,3 +317,8 @@ select JSON_EXTRACT('{\"asdf\":true}', "$.\"asdf\"") = false;
select JSON_EXTRACT('{\"asdf\":true}', "$.\"asdf\"") = 1;
select JSON_EXTRACT('{\"input1\":\"\\u00f6\"}', '$.\"input1\"');
#
# MDEV-129892 JSON_EXTRACT returns data for invalid JSON
#
select JSON_EXTRACT('{"foo": "bar" foobar foo invalid ', '$.foo');

4
sql/item_jsonfunc.cc
View file

@ -821,7 +821,11 @@ String *Item_func_json_extract::read_json(String *str,
not_first_value= 1;
if (!possible_multiple_values)
{
/* Loop to the end of the JSON just to make sure it's valid. */
while (json_get_path_next(&je, &p) == 0) {}
break;
}
}
if (je.s.error)