ruff/crates/ruff_linter/resources/test/fixtures/flake8_bandit/S506.py
Mikael Arguedas edfad461a8
[flake8-bandit/S506] Dont report violation when SafeLoader is imported from yaml.loader (#9299)
## Summary

Hey there 👋 thanks for this great project!

On python code looking like the following
```
import yaml
from yaml.loader import SafeLoader

with MY_FILE_PATH.open("r") as my_file:
    my_data = yaml.load(my_file, Loader=SafeLoader)
```

ruff reports this error:
```
S506 Probable use of unsafe loader `SafeLoader` with `yaml.load`. Allows instantiation of arbitrary objects. Consider `yaml.safe_load`.
```

This PR is an attempt to support SafeLoader being imported for either
`yaml` or `yaml.loader`

Disclaimer:
I am not familiar with Rust so this is likely not the better way of
doing it. Interested in hearing how to adapt this PR to provide similar
behavior in a better way
 

## Test Plan

The S506.py file was updated accordingly to cover the use cases and test
were confirmed to pass with this change.
2023-12-28 14:30:46 +00:00

36 lines
941 B
Python

import json
import yaml
from yaml import CSafeLoader
from yaml import SafeLoader
from yaml.loader import SafeLoader as NewSafeLoader
def test_yaml_load():
ystr = yaml.dump({"a": 1, "b": 2, "c": 3})
y = yaml.load(ystr)
yaml.dump(y)
try:
y = yaml.load(ystr, Loader=yaml.CSafeLoader)
except AttributeError:
# CSafeLoader only exists if you build yaml with LibYAML
y = yaml.load(ystr, Loader=yaml.SafeLoader)
def test_json_load():
# no issue should be found
j = json.load("{}")
yaml.load("{}", Loader=yaml.Loader)
# no issue should be found
yaml.load("{}", SafeLoader)
yaml.load("{}", yaml.SafeLoader)
yaml.load("{}", CSafeLoader)
yaml.load("{}", yaml.CSafeLoader)
yaml.load("{}", NewSafeLoader)
yaml.load("{}", Loader=SafeLoader)
yaml.load("{}", Loader=yaml.SafeLoader)
yaml.load("{}", Loader=CSafeLoader)
yaml.load("{}", Loader=yaml.CSafeLoader)
yaml.load("{}", Loader=NewSafeLoader)