8000 gh-79579: Improve DML query detection in sqlite3 by erlend-aasland · Pull Request #93623 · python/cpython · GitHub
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gh-79579: Improve DML query detection in sqlite3 #93623

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Merged
merged 22 commits into from
Jun 14, 2022
Merged

gh-79579: Improve DML query detection in sqlite3 #93623

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c8bcf3b
Add tests
erlend-aasland Jun 8, 2022
d38e632
Modify pysqlite_check_remaining_sql to return char * iso. int
erlend-aasland Jun 8, 2022
7fcca68
Rename pysqlite_check_remaining_sql to lstrip_sql
erlend-aasland Jun 8, 2022
3061dc5
Use lstrip_sql() to strip comments and whitespace
erlend-aasland Jun 8, 2022
631f24d
Adjust comment
erlend-aasland Jun 8, 2022
8f29283
Explicit comparison
erlend-aasland Jun 8, 2022
a51cfe6
Add more tests
erlend-aasland Jun 8, 2022
bf0e150
Fix bug in lstrip parser
erlend-aasland Jun 8, 2022
5918fbe
Adjust NEWS
erlend-aasland Jun 8, 2022
b45e5b5
Make test more messy
erlend-aasland Jun 9, 2022
b0a7fbc
Address Ma Lin's review
erlend-aasland Jun 9, 2022
61a81eb
Reword comment
erlend-aasland Jun 9, 2022
e3fea31
Inline it
erlend-aasland Jun 9, 2022
d6ce75c
Further mess up messy test to increase code coverage
erlend-aasland Jun 9, 2022
7f7943f
Increase code coverage
erlend-aasland Jun 10, 2022
adcba2c
Merge branch 'main' into sqlite-rowcount/gh-79579-alt
erlend-aasland Jun 12, 2022
e5fafc7
Rewrite lstrip_sql by borrowing from SQLite's parser
erlend-aasland Jun 13, 2022
7d7a654
Test code nit
erlend-aasland Jun 13, 2022
2e638a0
Harden test_rowcount_prefixed_with_comment test
erlend-aasland Jun 13, 2022
b932e4f
Simplify one test
erlend-aasland Jun 13, 2022
ca053d7
Fix ret value for invalid comments
erlend-aasland Jun 13, 2022
c6fa9b2
Simplify
erlend-aasland Jun 13, 2022
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@erlend-aasland
erlend-aasland committed Jun 8, 2022
commit 631f24dd076319234720da4f2584996a0f1a316b
7 changes: 5 additions & 2 deletions Modules/_sqlite/statement.c
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Expand Up @@ -131,12 +131,15 @@ stmt_traverse(pysqlite_Statement *self, visitproc visit, void *arg)
}

/*
* Checks if there is anything left in an SQL string after SQLite compiled it.
* Strips leading whitespace and SQL comments from input string and returns a
* pointer to the first non-whitespace, non-comment character.
*
* This is used to check if somebody tried to execute more than one SQL command
* with one execute()/executemany() command, which the DB-API and we don't
* allow.
*
* Returns 1 if there is more left than should be. 0 if ok.
* It is also used to strip leading whitespace and comments from input SQL
* queries, so we can easily detect DML queries.
*/
static const char *
lstrip_sql(const char *sql)
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