Files
BanGUI/backend/app/routers/server.py
Lukas 5480dce221 refactor: Remove duplicate router-level exception helpers
All routers now let domain exceptions propagate to the global handlers in main.py
instead of catching and converting them to HTTPException. This eliminates:

- Duplicate exception-to-HTTP-status mappings across 8 routers
- Duplicate helper functions (_bad_gateway, _not_found, _conflict, etc.)
- Inconsistent error response formats

Changes:
- Removed all try/except blocks from routers that catch domain exceptions
- Removed duplicate helper functions from all routers
- Added missing exception handlers to main.py for:
  * ActionNameError
  * FilterNameError
  * JailNameError
  * JailNotFoundInConfigError
  * FilterInvalidRegexError
- Removed unused imports from affected routers

All domain exceptions now propagate to the single authoritative mapping in
main.py, ensuring consistent error codes, messages, and logging across the API.

Affected routers:
- action_config.py: Removed _action_not_found, _bad_request, _not_found helpers
- bans.py: Removed try/except in ban/unban endpoints
- config_misc.py: Removed try/except blocks
- file_config.py: Removed 6 try/except blocks and _service_unavailable helper
- filter_config.py: Removed try/except blocks
- geo.py: Removed try/except in lookup_ip endpoint
- jail_config.py: Removed try/except blocks
- jails.py: Removed try/except blocks
- server.py: Removed try/except blocks

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
2026-04-23 16:00:37 +02:00

112 lines
3.2 KiB
Python

"""Server settings router.
Provides endpoints to view and update fail2ban server-level settings and
to flush log files.
* ``GET /api/server/settings`` — current log level, target, and DB config
* ``PUT /api/server/settings`` — update server-level settings
* ``POST /api/server/flush-logs`` — flush and re-open log files
"""
from __future__ import annotations
from fastapi import APIRouter, HTTPException, Request, status
from app.dependencies import AuthDep, Fail2BanSocketDep
from app.models.server import ServerSettingsResponse, ServerSettingsUpdate
from app.services import server_service
from app.exceptions import ServerOperationError, Fail2BanConnectionError
router: APIRouter = APIRouter(prefix="/api/server", tags=["Server"])
# ---------------------------------------------------------------------------
# Endpoints
# ---------------------------------------------------------------------------
@router.get(
"/settings",
response_model=ServerSettingsResponse,
summary="Return fail2ban server-level settings",
)
async def get_server_settings(
request: Request,
_auth: AuthDep,
socket_path: Fail2BanSocketDep,
) -> ServerSettingsResponse:
"""Return the current fail2ban server-level settings.
Includes log level, log target, syslog socket, database file path,
database purge age, and maximum stored matches per record.
Args:
request: Incoming request (used to access ``app.state``).
_auth: Validated session — enforces authentication.
Returns:
:class:`~app.models.server.ServerSettingsResponse`.
Raises:
HTTPException: 502 when fail2ban is unreachable.
"""
return await server_service.get_settings(socket_path)
@router.put(
"/settings",
status_code=status.HTTP_204_NO_CONTENT,
summary="Update fail2ban server-level settings",
)
async def update_server_settings(
request: Request,
_auth: AuthDep,
body: ServerSettingsUpdate,
socket_path: Fail2BanSocketDep,
) -> None:
"""Update fail2ban server-level settings.
Only non-None fields in the request body are written. Changes take
effect immediately without a daemon restart.
Args:
request: Incoming request.
_auth: Validated session.
body: Partial settings update.
Raises:
HTTPException: 400 when a set command is rejected by fail2ban.
HTTPException: 502 when fail2ban is unreachable.
"""
await server_service.update_settings(socket_path, body)
@router.post(
"/flush-logs",
status_code=status.HTTP_200_OK,
summary="Flush and re-open fail2ban log files",
)
async def flush_logs(
request: Request,
_auth: AuthDep,
socket_path: Fail2BanSocketDep,
) -> dict[str, str]:
"""Flush and re-open fail2ban log files.
Useful after log rotation so the daemon writes to the newly created
log file rather than continuing to append to the rotated one.
Args:
request: Incoming request.
_auth: Validated session.
Returns:
``{"message": "<response from fail2ban>"}``
Raises:
HTTPException: 400 when the command is rejected.
HTTPException: 502 when fail2ban is unreachable.
"""
result = await server_service.flush_logs(socket_path)
return {"message": result}