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archived-MoviePilot/docs/rules/11-quality-and-security.md

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# 11 — Code Quality and Security
## Testing Requirements
### What to Run
```bash
# Minimum: run tests directly related to the change
pytest tests/test_<domain>.py
# If the change affects common modules, startup flow, CLI, or agent runtime
pytest
```
### When to Expand Scope
Run the full test suite when changing:
- `app/core/` — config, event system, module manager, plugin manager
- `app/chain/__init__.py` — chain base class
- `app/modules/__init__.py` — module base class
- `app/main.py` — application startup
- The CLI entrypoint (`moviepilot`)
- Agent runtime (`app/agent/`)
- Any shared schema in `app/schemas/types.py`
### Honest Reporting
- If a task only changes documentation, state explicitly that tests were not run.
- Do not claim "all tests pass" unless you ran them.
- Do not describe unexecuted checks as completed.
### Writing New Tests
- When fixing a bug, prefer adding a test that reproduces it first.
- When adding a feature, add at minimum the smallest useful test coverage.
- Test files go in `tests/`, named `test_<domain>.py`.
- Use the patterns established in adjacent test files (fixtures, mock patterns, assertion style).
- Agent-related tests are under `tests/test_agent_*.py`. Integration-style tests may be in `tests/cases/` or `tests/manual/`.
---
## Static Analysis
```bash
pylint app/
```
- After any Python code change, ensure no new **error-level** pylint issues are introduced.
- Warning-level issues in new code should be minimized but are not an absolute gate for submission.
- Do not suppress pylint warnings with `# pylint: disable` without a documented reason.
---
## Dependency Security Scan
```bash
safety check -r requirements.txt --policy-file=safety.policy.yml
```
- Run after every change to `requirements.txt`.
- No new high-severity vulnerabilities may be introduced.
- If a vulnerability cannot be patched immediately, document it explicitly in the PR description.
---
## Authentication and Authorization
### API Authentication
All REST and MCP API endpoints require authentication. The project supports two mechanisms:
| Method | Format |
|---|---|
| Request header | `X-API-KEY: <api_key>` |
| Query parameter | `?apikey=<api_key>` |
The `API_TOKEN` value in `settings` is the source of truth. It is set at initialization and never exposed in logs or API responses.
### Endpoint Authorization
- Use the existing FastAPI dependency functions (e.g., `get_current_user`, `get_current_active_superuser`) — check `app/api/endpoints/` for usage patterns.
- Do not add manual token parsing inside endpoint functions. Always use the project's dependency injection.
- Superuser-only operations must explicitly require the superuser dependency.
---
## Input Validation
- Validate user input at the **endpoint layer only**, using Pydantic models.
- Do not duplicate validation logic in chain or module code. Trust that the endpoint has already validated what it passes down.
- For external API responses, validate using Pydantic models or explicit `None` checks before accessing fields.
---
## Secrets Management
- Never hardcode secrets (API keys, passwords, tokens) in source code.
- All secrets are configured via environment variables or `.moviepilot.env` and accessed through `settings`.
- Never log or serialize `settings.API_TOKEN`, `settings.DB_PASSWORD`, or any field with `Secret` in its name.
- Do not commit `.moviepilot.env`, `*.db`, or any file under `config/` — these are local runtime state.
---
## SQL Injection Prevention
- All database access goes through SQLAlchemy ORM via the `*_oper.py` classes. No raw SQL string construction.
- If a raw SQL query is ever genuinely necessary, use SQLAlchemy's `text()` with parameterized binds — never string interpolation.
---
## XSS and Injection in Notifications
- When constructing notification messages that include user-provided data (media titles, filenames, usernames), treat those values as untrusted strings.
- Do not render user data in HTML contexts without escaping. Notification channels that render HTML (e.g., Telegram with `parse_mode=HTML`) must escape user-controlled strings.
---
## File Path Security
- Use `pathlib.Path` for all file path operations.
- Never construct file paths by concatenating user-provided strings.
- When transferring files to a user-configured path, verify the destination is within an allowed base directory before writing.
---
## Pre-Submission Checklist
Before marking any task as complete:
- [ ] Related pytest tests pass
- [ ] No new pylint error-level issues in `pylint app/`
- [ ] If dependencies changed: `pip-compile requirements.in` was run and `safety check` passes
- [ ] If CLI behavior changed: `docs/cli.md` and related tests are updated
- [ ] If MCP/API behavior changed: `docs/mcp-api.md` and related skill files are updated
- [ ] If database schema changed: a new Alembic migration exists under `database/versions/`
- [ ] No secrets are included in code, logs, or committed files
- [ ] Public classes and methods have Chinese docstrings
*Last Updated: 2026-05-25*