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https://github.com/Takishima/flake8-secure-coding-standard
Flake8 plugin to enforce some secure coding standards for Python.
https://github.com/Takishima/flake8-secure-coding-standard
flake8 flake8-plugin python
Last synced: about 2 months ago
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Flake8 plugin to enforce some secure coding standards for Python.
- Host: GitHub
- URL: https://github.com/Takishima/flake8-secure-coding-standard
- Owner: Takishima
- License: apache-2.0
- Created: 2021-06-20T14:50:22.000Z (about 3 years ago)
- Default Branch: main
- Last Pushed: 2024-05-13T20:13:25.000Z (about 2 months ago)
- Last Synced: 2024-05-13T21:30:53.588Z (about 2 months ago)
- Topics: flake8, flake8-plugin, python
- Language: Python
- Homepage:
- Size: 157 KB
- Stars: 4
- Watchers: 3
- Forks: 2
- Open Issues: 3
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- License: LICENSE
Lists
- awesome-flake8-extensions - flake8-secure-coding-standard - Enforce some secure coding standards for Python. <!-- TODO(@orsinium): move into "All-in-one" when grows --> (Bugs)
README
# Flake8 Secure Coding Standard Plugin
 [](https://badge.fury.io/py/flake8-secure-coding-standard) [](https://github.com/Takishima/flake8-secure-coding-standard/actions/workflows/ci.yml) [](https://github.com/Takishima/flake8-secure-coding-standard/actions/workflows/codeql-analysis.yml) [](https://results.pre-commit.ci/latest/github/Takishima/flake8-secure-coding-standard/main) [](https://coveralls.io/github/Takishima/flake8-secure-coding-standard?branch=main)
flake8 plugin that enforces some secure coding standards.
## Installation
pip install flake8-secure-coding-standard
## Flake8 codes
| Code | Description |
|--------|---------------------------------------------------------------------------------------------------------------|
| SCS100 | Use of `os.path.abspath()` and `os.path.relpath()` should be avoided in favor of `os.path.realpath()` |
| SCS101 | Use of `eval()` and `exec()` represent a security risk and should be avoided |
| SCS102 | Use of `os.system()` should be avoided |
| SCS103 | Use of `shell=True` in subprocess functions or use of functions that internally set this should be avoided |
| SCS104 | Use of `tempfile.mktemp()` should be avoided, prefer `tempfile.mkstemp()` |
| SCS105 | Use of `yaml.load()` should be avoided, prefer `yaml.safe_load()` or `yaml.load(xxx, Loader=SafeLoader)` |
| SCS106 | Use of `jsonpickle.decode()` should be avoided |
| SCS107 | Use of debugging code should not be present in production code (e.g. `import pdb`) |
| SCS108 | `assert` statements should not be present in production code |
| SCS109 | Use of builtin `open` for writing is discouraged in favor of `os.open` to allow for setting file permissions |
| SCS110 | Avoid using `os.popen()` as it internally uses `subprocess.Popen` with `shell=True` |
| SCS111 | Use of `shlex.quote()` should be avoided on non-POSIX platforms |
| SCS112 | Avoid using `os.open()` with unsafe file permissions |
| SCS113 | Avoid using `pickle.load()` and `pickle.loads()` |
| SCS114 | Avoid using `marshal.load()` and `marshal.loads()` |
| SCS115 | Avoid using `shelve.open()` |
| SCS116 | Avoid using `os.mkdir` and `os.makedirs` with unsafe file permissions |
| SCS117 | Avoid using `os.mkfifo` with unsafe file permissions |
| SCS118 | Avoid using `os.mknod` with unsafe file permissions |
| SCS119 | Avoid using `os.chmod` with unsafe file permissions (W ^ X for group and others) |
## Plugin configuration options
This plugin supports some configuration options that may either be specified directly on the command line with a flag
using the option name as `--name` or by specifying them in one of flake8's configuration files (ie. `pyproject.toml`,
`setup.cfg`, `.flake8`, etc.).
Available options:
| Option name | Option type | Default value | Related error code |
|----------------|-------------|---------------|--------------------|
| os-open-mode | mode-like | 0 (off) | SCS112 |
| os-mkdir-mode | mode-like | 0 (off) | SCS116 |
| os-mkfifo-mode | mode-like | 0 (off) | SCS117 |
| os-mknod-mode | mode-like | 0 (off) | SCS118 |
### Mode-like options
Mode-like options are configuration options for errors/warnings that relate to some function that accepts a `mode`
parameter (or similar) that control some file or directory permissions. For those kind of options, the plugin
understands a variety of values that must be specified as `string`. They will then be parsed into a list of allowed mode
values:
- Any positive, non-zero (octal or decimal) integer value specifies the maximum value for the mode value
- A comma-separated list of (octal or decimal) integers indicates the list of allowed mode values
- 'y', 'yes', 'true' (case-insensitive) will turn on the warnings using the default value of `0o755`
- 'n', 'no', 'false' (case-insensitive) will turn off the warnings
Example of values (for `pyproject.toml`):
```toml
[tool.flake8]
os-open-mode = '0' # check disabled
os-open-mode = 'no' # check disabled
os-open-mode = '493' # all modes from 0 to 493 (=0o755)
os-open-mode = '0o755' # all modes from 0 to 0o755
os-open-mode = '0o755,' # only 0o755 (notice the comma)
os-open-mode = '0o644,0o755' # only 0o644 and 0o755
```
You can also specify those options directly on the command line:
```sh
python3 -m flake8 --os-open-mode='0o755'
```
## Pre-commit hook
See [pre-commit](https://github.com/pre-commit/pre-commit) for instructions
Sample `.pre-commit-config.yaml`:
```yaml
- repo: https://github.com/PyCQA/flake8
rev: 4.0.0
hooks:
- id: flake8
additional_dependencies: [flake8-secure-coding-standard]
```