Files
BanGUI/backend/app/routers/geo.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

127 lines
3.7 KiB
Python

"""Geo / IP lookup router.
Provides the IP enrichment endpoints:
* ``GET /api/geo/lookup/{ip}`` — ban status, ban history, and geo info for an IP
* ``POST /api/geo/re-resolve`` — retry all previously failed geo lookups
"""
from __future__ import annotations
from typing import TYPE_CHECKING, Annotated
if TYPE_CHECKING:
from app.services.jail_service import IpLookupResult
from fastapi import APIRouter, Path
from app.dependencies import (
AuthDep,
DbDep,
Fail2BanSocketDep,
HttpSessionDep,
)
from app.models.geo import GeoCacheStatsResponse, GeoReResolveResponse, IpLookupResponse
from app.services import geo_service, jail_service
router: APIRouter = APIRouter(prefix="/api/geo", tags=["Geo"])
_IpPath = Annotated[str, Path(description="IPv4 or IPv6 address to look up.")]
@router.get(
"/lookup/{ip}",
response_model=IpLookupResponse,
summary="Look up ban status and geo information for an IP",
)
async def lookup_ip(
_auth: AuthDep,
ip: _IpPath,
socket_path: Fail2BanSocketDep,
http_session: HttpSessionDep,
) -> IpLookupResponse:
"""Return current ban status, geo data, and network information for an IP.
Checks every running fail2ban jail to determine whether the IP is
currently banned, and enriches the result with country, ASN, and
organisation data from ip-api.com.
Args:
_auth: Validated session — enforces authentication.
ip: The IP address to look up.
Returns:
:class:`~app.models.geo.IpLookupResponse` with ban status and geo data.
Raises:
HTTPException: 400 when *ip* is not a valid IP address.
HTTPException: 502 when fail2ban is unreachable.
"""
result: IpLookupResult = await jail_service.lookup_ip(
socket_path,
ip,
http_session=http_session,
)
return IpLookupResponse(**result)
# ---------------------------------------------------------------------------
# POST /api/geo/re-resolve
# ---------------------------------------------------------------------------
# ---------------------------------------------------------------------------
# GET /api/geo/stats
# ---------------------------------------------------------------------------
@router.get(
"/stats",
response_model=GeoCacheStatsResponse,
summary="Geo cache diagnostic counters",
)
async def geo_stats(
_auth: AuthDep,
db: DbDep,
) -> GeoCacheStatsResponse:
"""Return diagnostic counters for the geo cache subsystem.
Useful for operators and the UI to gauge geo-resolution health.
Args:
_auth: Validated session — enforces authentication.
db: BanGUI application database connection.
Returns:
:class:`~app.models.geo.GeoCacheStatsResponse` with current counters.
"""
stats: dict[str, int] = await geo_service.cache_stats(db)
return GeoCacheStatsResponse(**stats)
@router.post(
"/re-resolve",
summary="Re-resolve all IPs whose country could not be determined",
response_model=GeoReResolveResponse,
)
async def re_resolve_geo(
_auth: AuthDep,
db: DbDep,
http_session: HttpSessionDep,
) -> GeoReResolveResponse:
"""Retry geo resolution for every IP in ``geo_cache`` with a null country.
Clears the in-memory negative cache first so that previously failing IPs
are immediately eligible for a new API attempt.
Args:
_auth: Validated session — enforces authentication.
db: BanGUI application database (for reading/writing ``geo_cache``).
http_session: Shared HTTP session for geo lookups.
Returns:
A :class:`~app.models.geo.GeoReResolveResponse` with retry counts.
"""
return await geo_service.re_resolve_all(db, http_session)