Lukas
f7cc130432
- ActionConfig extended with active, used_by_jails, source_file, has_local_override
- New models: ActionListResponse, ActionUpdateRequest, ActionCreateRequest, AssignActionRequest
- New service functions: list_actions, get_action, update_action, create_action, delete_action, assign_action_to_jail, remove_action_from_jail
- New error classes: ActionNotFoundError, ActionAlreadyExistsError, ActionReadonlyError, ActionNameError
- New router endpoints: GET/PUT/POST/DELETE /api/config/actions, POST/DELETE /api/config/jails/{name}/action
- Service + router tests: 290 tests passing, mypy strict clean, ruff clean
1322 lines
44 KiB
Python
1322 lines
44 KiB
Python
"""Configuration router.
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Provides endpoints to inspect and edit fail2ban jail configuration and
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global settings, test regex patterns, add log paths, and preview log files.
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* ``GET /api/config/jails`` — list all jail configs
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* ``GET /api/config/jails/{name}`` — full config for one jail
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* ``PUT /api/config/jails/{name}`` — update a jail's config
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* ``GET /api/config/jails/inactive`` — list all inactive jails
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* ``POST /api/config/jails/{name}/activate`` — activate an inactive jail
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* ``POST /api/config/jails/{name}/deactivate`` — deactivate an active jail
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* ``POST /api/config/jails/{name}/filter`` — assign a filter to a jail
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* ``POST /api/config/jails/{name}/action`` — add an action to a jail
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* ``DELETE /api/config/jails/{name}/action/{action_name}`` — remove an action from a jail
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* ``GET /api/config/global`` — global fail2ban settings
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* ``PUT /api/config/global`` — update global settings
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* ``POST /api/config/reload`` — reload fail2ban
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* ``POST /api/config/regex-test`` — test a regex pattern
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* ``POST /api/config/jails/{name}/logpath`` — add a log path to a jail
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* ``POST /api/config/preview-log`` — preview log matches
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* ``GET /api/config/filters`` — list all filters with active/inactive status
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* ``GET /api/config/filters/{name}`` — full parsed detail for one filter
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* ``PUT /api/config/filters/{name}`` — update a filter's .local override
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* ``POST /api/config/filters`` — create a new user-defined filter
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* ``DELETE /api/config/filters/{name}`` — delete a filter's .local file
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* ``GET /api/config/actions`` — list all actions with active/inactive status
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* ``GET /api/config/actions/{name}`` — full parsed detail for one action
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* ``PUT /api/config/actions/{name}`` — update an action's .local override
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* ``POST /api/config/actions`` — create a new user-defined action
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* ``DELETE /api/config/actions/{name}`` — delete an action's .local file
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"""
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from __future__ import annotations
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from typing import Annotated
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from fastapi import APIRouter, HTTPException, Path, Query, Request, status
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from app.dependencies import AuthDep
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from app.models.config import (
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ActionConfig,
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ActionCreateRequest,
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ActionListResponse,
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ActionUpdateRequest,
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ActivateJailRequest,
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AddLogPathRequest,
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AssignActionRequest,
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AssignFilterRequest,
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FilterConfig,
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FilterCreateRequest,
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FilterListResponse,
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FilterUpdateRequest,
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GlobalConfigResponse,
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GlobalConfigUpdate,
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InactiveJailListResponse,
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JailActivationResponse,
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JailConfigListResponse,
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JailConfigResponse,
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JailConfigUpdate,
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LogPreviewRequest,
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LogPreviewResponse,
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MapColorThresholdsResponse,
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MapColorThresholdsUpdate,
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RegexTestRequest,
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RegexTestResponse,
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)
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from app.services import config_file_service, config_service, jail_service
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from app.services.config_file_service import (
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ActionAlreadyExistsError,
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ActionNameError,
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ActionNotFoundError,
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ActionReadonlyError,
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ConfigWriteError,
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FilterAlreadyExistsError,
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FilterInvalidRegexError,
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FilterNameError,
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FilterNotFoundError,
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FilterReadonlyError,
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JailAlreadyActiveError,
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JailAlreadyInactiveError,
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JailNameError,
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JailNotFoundInConfigError,
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)
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from app.services.config_service import (
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ConfigOperationError,
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ConfigValidationError,
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JailNotFoundError,
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)
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from app.utils.fail2ban_client import Fail2BanConnectionError
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router: APIRouter = APIRouter(prefix="/api/config", tags=["Config"])
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# ---------------------------------------------------------------------------
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# Helpers
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# ---------------------------------------------------------------------------
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_NamePath = Annotated[str, Path(description="Jail name as configured in fail2ban.")]
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def _not_found(name: str) -> HTTPException:
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return HTTPException(
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status_code=status.HTTP_404_NOT_FOUND,
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detail=f"Jail not found: {name!r}",
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)
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def _bad_gateway(exc: Exception) -> HTTPException:
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return HTTPException(
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status_code=status.HTTP_502_BAD_GATEWAY,
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detail=f"Cannot reach fail2ban: {exc}",
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)
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def _unprocessable(message: str) -> HTTPException:
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return HTTPException(
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status_code=status.HTTP_422_UNPROCESSABLE_CONTENT,
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detail=message,
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)
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def _bad_request(message: str) -> HTTPException:
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return HTTPException(
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status_code=status.HTTP_400_BAD_REQUEST,
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detail=message,
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)
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# ---------------------------------------------------------------------------
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# Jail configuration endpoints
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# ---------------------------------------------------------------------------
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@router.get(
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"/jails",
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response_model=JailConfigListResponse,
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summary="List configuration for all active jails",
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)
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async def get_jail_configs(
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request: Request,
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_auth: AuthDep,
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) -> JailConfigListResponse:
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"""Return editable configuration for every active fail2ban jail.
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Fetches ban time, find time, max retries, regex patterns, log paths,
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date pattern, encoding, backend, and attached actions for all jails.
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Args:
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request: Incoming request (used to access ``app.state``).
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_auth: Validated session — enforces authentication.
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Returns:
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:class:`~app.models.config.JailConfigListResponse`.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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return await config_service.list_jail_configs(socket_path)
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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@router.get(
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"/jails/inactive",
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response_model=InactiveJailListResponse,
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summary="List all inactive jails discovered in config files",
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)
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async def get_inactive_jails(
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request: Request,
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_auth: AuthDep,
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) -> InactiveJailListResponse:
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"""Return all jails defined in fail2ban config files that are not running.
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Parses ``jail.conf``, ``jail.local``, and ``jail.d/`` following the
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fail2ban merge order. Jails that fail2ban currently reports as running
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are excluded; only truly inactive entries are returned.
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Args:
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request: FastAPI request object.
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_auth: Validated session — enforces authentication.
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Returns:
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:class:`~app.models.config.InactiveJailListResponse`.
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"""
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config_dir: str = request.app.state.settings.fail2ban_config_dir
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socket_path: str = request.app.state.settings.fail2ban_socket
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return await config_file_service.list_inactive_jails(config_dir, socket_path)
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@router.get(
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"/jails/{name}",
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response_model=JailConfigResponse,
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summary="Return configuration for a single jail",
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)
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async def get_jail_config(
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request: Request,
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_auth: AuthDep,
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name: _NamePath,
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) -> JailConfigResponse:
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"""Return the full editable configuration for one fail2ban jail.
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Args:
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request: Incoming request.
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_auth: Validated session.
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name: Jail name.
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Returns:
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:class:`~app.models.config.JailConfigResponse`.
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Raises:
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HTTPException: 404 when the jail does not exist.
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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return await config_service.get_jail_config(socket_path, name)
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except JailNotFoundError:
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raise _not_found(name) from None
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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@router.put(
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"/jails/{name}",
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status_code=status.HTTP_204_NO_CONTENT,
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summary="Update jail configuration",
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)
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async def update_jail_config(
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request: Request,
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_auth: AuthDep,
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name: _NamePath,
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body: JailConfigUpdate,
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) -> None:
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"""Update one or more configuration fields for an active fail2ban jail.
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Regex patterns are validated before being sent to fail2ban. An invalid
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pattern returns 422 with the regex error message.
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Args:
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request: Incoming request.
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_auth: Validated session.
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name: Jail name.
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body: Partial update — only non-None fields are written.
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Raises:
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HTTPException: 404 when the jail does not exist.
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HTTPException: 422 when a regex pattern fails to compile.
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HTTPException: 400 when a set command is rejected.
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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await config_service.update_jail_config(socket_path, name, body)
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except JailNotFoundError:
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raise _not_found(name) from None
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except ConfigValidationError as exc:
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raise _unprocessable(str(exc)) from exc
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except ConfigOperationError as exc:
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raise _bad_request(str(exc)) from exc
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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# ---------------------------------------------------------------------------
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# Global configuration endpoints
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# ---------------------------------------------------------------------------
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@router.get(
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"/global",
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response_model=GlobalConfigResponse,
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summary="Return global fail2ban settings",
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)
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async def get_global_config(
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request: Request,
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_auth: AuthDep,
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) -> GlobalConfigResponse:
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"""Return global fail2ban settings (log level, log target, database config).
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Args:
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request: Incoming request.
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_auth: Validated session.
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Returns:
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:class:`~app.models.config.GlobalConfigResponse`.
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Raises:
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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return await config_service.get_global_config(socket_path)
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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@router.put(
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"/global",
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status_code=status.HTTP_204_NO_CONTENT,
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summary="Update global fail2ban settings",
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)
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async def update_global_config(
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request: Request,
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_auth: AuthDep,
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body: GlobalConfigUpdate,
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) -> None:
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"""Update global fail2ban settings.
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Args:
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request: Incoming request.
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_auth: Validated session.
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body: Partial update — only non-None fields are written.
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Raises:
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HTTPException: 400 when a set command is rejected.
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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await config_service.update_global_config(socket_path, body)
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except ConfigOperationError as exc:
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raise _bad_request(str(exc)) from exc
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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# ---------------------------------------------------------------------------
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# Reload endpoint
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# ---------------------------------------------------------------------------
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@router.post(
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"/reload",
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status_code=status.HTTP_204_NO_CONTENT,
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summary="Reload fail2ban to apply configuration changes",
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)
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async def reload_fail2ban(
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request: Request,
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_auth: AuthDep,
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) -> None:
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"""Trigger a full fail2ban reload.
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All jails are stopped and restarted with the current configuration.
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Args:
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request: Incoming request.
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_auth: Validated session.
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Raises:
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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await jail_service.reload_all(socket_path)
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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# ---------------------------------------------------------------------------
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# Regex tester (stateless)
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# ---------------------------------------------------------------------------
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@router.post(
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"/regex-test",
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response_model=RegexTestResponse,
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summary="Test a fail regex pattern against a sample log line",
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)
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async def regex_test(
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_auth: AuthDep,
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body: RegexTestRequest,
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) -> RegexTestResponse:
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"""Test whether a regex pattern matches a given log line.
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This endpoint is entirely in-process — no fail2ban socket call is made.
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Returns the match result and any captured groups.
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Args:
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_auth: Validated session.
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body: Sample log line and regex pattern.
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Returns:
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:class:`~app.models.config.RegexTestResponse` with match result and groups.
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"""
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return config_service.test_regex(body)
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# ---------------------------------------------------------------------------
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# Log path management
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# ---------------------------------------------------------------------------
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@router.post(
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"/jails/{name}/logpath",
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status_code=status.HTTP_204_NO_CONTENT,
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summary="Add a log file path to an existing jail",
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)
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async def add_log_path(
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request: Request,
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_auth: AuthDep,
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name: _NamePath,
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body: AddLogPathRequest,
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) -> None:
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"""Register an additional log file for an existing jail to monitor.
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Uses ``set <jail> addlogpath <path> <tail|head>`` to add the path
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without requiring a daemon restart.
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Args:
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request: Incoming request.
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_auth: Validated session.
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name: Jail name.
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body: Log path and tail/head preference.
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Raises:
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HTTPException: 404 when the jail does not exist.
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HTTPException: 400 when the command is rejected.
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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await config_service.add_log_path(socket_path, name, body)
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except JailNotFoundError:
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raise _not_found(name) from None
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except ConfigOperationError as exc:
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raise _bad_request(str(exc)) from exc
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except Fail2BanConnectionError as exc:
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raise _bad_gateway(exc) from exc
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@router.delete(
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"/jails/{name}/logpath",
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status_code=status.HTTP_204_NO_CONTENT,
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summary="Remove a monitored log path from a jail",
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)
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async def delete_log_path(
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request: Request,
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_auth: AuthDep,
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name: _NamePath,
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log_path: str = Query(..., description="Absolute path of the log file to stop monitoring."),
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) -> None:
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"""Stop a jail from monitoring the specified log file.
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Uses ``set <jail> dellogpath <path>`` to remove the log path at runtime
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without requiring a daemon restart.
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Args:
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request: Incoming request.
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_auth: Validated session.
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name: Jail name.
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log_path: Absolute path to the log file to remove (query parameter).
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Raises:
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HTTPException: 404 when the jail does not exist.
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HTTPException: 400 when the command is rejected.
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HTTPException: 502 when fail2ban is unreachable.
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"""
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socket_path: str = request.app.state.settings.fail2ban_socket
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try:
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await config_service.delete_log_path(socket_path, name, log_path)
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except JailNotFoundError:
|
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raise _not_found(name) from None
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except ConfigOperationError as exc:
|
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raise _bad_request(str(exc)) from exc
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except Fail2BanConnectionError as exc:
|
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raise _bad_gateway(exc) from exc
|
|
|
|
|
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@router.post(
|
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"/preview-log",
|
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response_model=LogPreviewResponse,
|
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summary="Preview log file lines against a regex pattern",
|
|
)
|
|
async def preview_log(
|
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_auth: AuthDep,
|
|
body: LogPreviewRequest,
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) -> LogPreviewResponse:
|
|
"""Read the last N lines of a log file and test a regex against each one.
|
|
|
|
Returns each line with a flag indicating whether the regex matched, and
|
|
the captured groups for matching lines. The log file is read from the
|
|
server's local filesystem.
|
|
|
|
Args:
|
|
_auth: Validated session.
|
|
body: Log file path, regex pattern, and number of lines to read.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.LogPreviewResponse` with per-line results.
|
|
"""
|
|
return await config_service.preview_log(body)
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Map color thresholds
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
@router.get(
|
|
"/map-color-thresholds",
|
|
response_model=MapColorThresholdsResponse,
|
|
summary="Get map color threshold configuration",
|
|
)
|
|
async def get_map_color_thresholds(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
) -> MapColorThresholdsResponse:
|
|
"""Return the configured map color thresholds.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.MapColorThresholdsResponse` with
|
|
current thresholds.
|
|
"""
|
|
from app.services import setup_service
|
|
|
|
high, medium, low = await setup_service.get_map_color_thresholds(
|
|
request.app.state.db
|
|
)
|
|
return MapColorThresholdsResponse(
|
|
threshold_high=high,
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|
threshold_medium=medium,
|
|
threshold_low=low,
|
|
)
|
|
|
|
|
|
@router.put(
|
|
"/map-color-thresholds",
|
|
response_model=MapColorThresholdsResponse,
|
|
summary="Update map color threshold configuration",
|
|
)
|
|
async def update_map_color_thresholds(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
body: MapColorThresholdsUpdate,
|
|
) -> MapColorThresholdsResponse:
|
|
"""Update the map color threshold configuration.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
body: New threshold values.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.MapColorThresholdsResponse` with
|
|
updated thresholds.
|
|
|
|
Raises:
|
|
HTTPException: 400 if validation fails (thresholds not
|
|
properly ordered).
|
|
"""
|
|
from app.services import setup_service
|
|
|
|
try:
|
|
await setup_service.set_map_color_thresholds(
|
|
request.app.state.db,
|
|
threshold_high=body.threshold_high,
|
|
threshold_medium=body.threshold_medium,
|
|
threshold_low=body.threshold_low,
|
|
)
|
|
except ValueError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
|
|
return MapColorThresholdsResponse(
|
|
threshold_high=body.threshold_high,
|
|
threshold_medium=body.threshold_medium,
|
|
threshold_low=body.threshold_low,
|
|
)
|
|
|
|
|
|
@router.post(
|
|
"/jails/{name}/activate",
|
|
response_model=JailActivationResponse,
|
|
summary="Activate an inactive jail",
|
|
)
|
|
async def activate_jail(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _NamePath,
|
|
body: ActivateJailRequest | None = None,
|
|
) -> JailActivationResponse:
|
|
"""Enable an inactive jail and reload fail2ban.
|
|
|
|
Writes ``enabled = true`` (plus any override values from the request
|
|
body) to ``jail.d/{name}.local`` and triggers a full fail2ban reload so
|
|
the jail starts immediately.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Name of the jail to activate.
|
|
body: Optional override values (bantime, findtime, maxretry, port,
|
|
logpath).
|
|
|
|
Returns:
|
|
:class:`~app.models.config.JailActivationResponse`.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* contains invalid characters.
|
|
HTTPException: 404 if *name* is not found in any config file.
|
|
HTTPException: 409 if the jail is already active.
|
|
HTTPException: 502 if fail2ban is unreachable.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
req = body if body is not None else ActivateJailRequest()
|
|
|
|
try:
|
|
return await config_file_service.activate_jail(
|
|
config_dir, socket_path, name, req
|
|
)
|
|
except JailNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except JailNotFoundInConfigError:
|
|
raise _not_found(name) from None
|
|
except JailAlreadyActiveError:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_409_CONFLICT,
|
|
detail=f"Jail {name!r} is already active.",
|
|
) from None
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write config override: {exc}",
|
|
) from exc
|
|
except Fail2BanConnectionError as exc:
|
|
raise _bad_gateway(exc) from exc
|
|
|
|
|
|
@router.post(
|
|
"/jails/{name}/deactivate",
|
|
response_model=JailActivationResponse,
|
|
summary="Deactivate an active jail",
|
|
)
|
|
async def deactivate_jail(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _NamePath,
|
|
) -> JailActivationResponse:
|
|
"""Disable an active jail and reload fail2ban.
|
|
|
|
Writes ``enabled = false`` to ``jail.d/{name}.local`` and triggers a
|
|
full fail2ban reload so the jail stops immediately.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Name of the jail to deactivate.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.JailActivationResponse`.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* contains invalid characters.
|
|
HTTPException: 404 if *name* is not found in any config file.
|
|
HTTPException: 409 if the jail is already inactive.
|
|
HTTPException: 502 if fail2ban is unreachable.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
|
|
try:
|
|
return await config_file_service.deactivate_jail(config_dir, socket_path, name)
|
|
except JailNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except JailNotFoundInConfigError:
|
|
raise _not_found(name) from None
|
|
except JailAlreadyInactiveError:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_409_CONFLICT,
|
|
detail=f"Jail {name!r} is already inactive.",
|
|
) from None
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write config override: {exc}",
|
|
) from exc
|
|
except Fail2BanConnectionError as exc:
|
|
raise _bad_gateway(exc) from exc
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Filter discovery endpoints (Task 2.1)
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
@router.get(
|
|
"/filters",
|
|
response_model=FilterListResponse,
|
|
summary="List all available filters with active/inactive status",
|
|
)
|
|
async def list_filters(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
) -> FilterListResponse:
|
|
"""Return all filters discovered in ``filter.d/`` with active/inactive status.
|
|
|
|
Scans ``{config_dir}/filter.d/`` for ``.conf`` files, merges any
|
|
corresponding ``.local`` overrides, and cross-references each filter's
|
|
name against the ``filter`` fields of currently running jails to determine
|
|
whether it is active.
|
|
|
|
Active filters (those used by at least one running jail) are sorted to the
|
|
top of the list; inactive filters follow. Both groups are sorted
|
|
alphabetically within themselves.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session — enforces authentication.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.FilterListResponse` with all discovered
|
|
filters.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
result = await config_file_service.list_filters(config_dir, socket_path)
|
|
# Sort: active first (by name), then inactive (by name).
|
|
result.filters.sort(key=lambda f: (not f.active, f.name.lower()))
|
|
return result
|
|
|
|
|
|
@router.get(
|
|
"/filters/{name}",
|
|
response_model=FilterConfig,
|
|
summary="Return full parsed detail for a single filter",
|
|
)
|
|
async def get_filter(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: Annotated[str, Path(description="Filter base name, e.g. ``sshd`` or ``sshd.conf``.")],
|
|
) -> FilterConfig:
|
|
"""Return the full parsed configuration and active/inactive status for one filter.
|
|
|
|
Reads ``{config_dir}/filter.d/{name}.conf``, merges any corresponding
|
|
``.local`` override, and annotates the result with ``active``,
|
|
``used_by_jails``, ``source_file``, and ``has_local_override``.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session — enforces authentication.
|
|
name: Filter base name (with or without ``.conf`` extension).
|
|
|
|
Returns:
|
|
:class:`~app.models.config.FilterConfig`.
|
|
|
|
Raises:
|
|
HTTPException: 404 if the filter is not found in ``filter.d/``.
|
|
HTTPException: 502 if fail2ban is unreachable.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
return await config_file_service.get_filter(config_dir, socket_path, name)
|
|
except FilterNotFoundError:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_404_NOT_FOUND,
|
|
detail=f"Filter not found: {name!r}",
|
|
) from None
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Filter write endpoints (Task 2.2)
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
_FilterNamePath = Annotated[
|
|
str,
|
|
Path(description="Filter base name, e.g. ``sshd`` or ``sshd.conf``."),
|
|
]
|
|
|
|
|
|
def _filter_not_found(name: str) -> HTTPException:
|
|
return HTTPException(
|
|
status_code=status.HTTP_404_NOT_FOUND,
|
|
detail=f"Filter not found: {name!r}",
|
|
)
|
|
|
|
|
|
@router.put(
|
|
"/filters/{name}",
|
|
response_model=FilterConfig,
|
|
summary="Update a filter's .local override with new regex/pattern values",
|
|
)
|
|
async def update_filter(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _FilterNamePath,
|
|
body: FilterUpdateRequest,
|
|
reload: bool = Query(default=False, description="Reload fail2ban after writing."),
|
|
) -> FilterConfig:
|
|
"""Update a filter's ``[Definition]`` fields by writing a ``.local`` override.
|
|
|
|
All regex patterns are validated before writing. The original ``.conf``
|
|
file is never modified. Fields left as ``null`` in the request body are
|
|
kept at their current values.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Filter base name (with or without ``.conf`` extension).
|
|
body: Partial update — ``failregex``, ``ignoreregex``, ``datepattern``,
|
|
``journalmatch``.
|
|
reload: When ``true``, trigger a fail2ban reload after writing.
|
|
|
|
Returns:
|
|
Updated :class:`~app.models.config.FilterConfig`.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* contains invalid characters.
|
|
HTTPException: 404 if the filter does not exist.
|
|
HTTPException: 422 if any regex pattern fails to compile.
|
|
HTTPException: 500 if writing the ``.local`` file fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
return await config_file_service.update_filter(
|
|
config_dir, socket_path, name, body, do_reload=reload
|
|
)
|
|
except FilterNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except FilterNotFoundError:
|
|
raise _filter_not_found(name) from None
|
|
except FilterInvalidRegexError as exc:
|
|
raise _unprocessable(str(exc)) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write filter override: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.post(
|
|
"/filters",
|
|
response_model=FilterConfig,
|
|
status_code=status.HTTP_201_CREATED,
|
|
summary="Create a new user-defined filter",
|
|
)
|
|
async def create_filter(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
body: FilterCreateRequest,
|
|
reload: bool = Query(default=False, description="Reload fail2ban after creating."),
|
|
) -> FilterConfig:
|
|
"""Create a new user-defined filter at ``filter.d/{name}.local``.
|
|
|
|
The filter is created as a ``.local`` file so it can coexist safely with
|
|
shipped ``.conf`` files. Returns 409 if a ``.conf`` or ``.local`` for
|
|
the requested name already exists.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
body: Filter name and ``[Definition]`` fields.
|
|
reload: When ``true``, trigger a fail2ban reload after creating.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.FilterConfig` for the new filter.
|
|
|
|
Raises:
|
|
HTTPException: 400 if the name contains invalid characters.
|
|
HTTPException: 409 if the filter already exists.
|
|
HTTPException: 422 if any regex pattern is invalid.
|
|
HTTPException: 500 if writing fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
return await config_file_service.create_filter(
|
|
config_dir, socket_path, body, do_reload=reload
|
|
)
|
|
except FilterNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except FilterAlreadyExistsError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_409_CONFLICT,
|
|
detail=f"Filter {exc.name!r} already exists.",
|
|
) from exc
|
|
except FilterInvalidRegexError as exc:
|
|
raise _unprocessable(str(exc)) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write filter: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.delete(
|
|
"/filters/{name}",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
summary="Delete a user-created filter's .local file",
|
|
)
|
|
async def delete_filter(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _FilterNamePath,
|
|
) -> None:
|
|
"""Delete a user-created filter's ``.local`` override file.
|
|
|
|
Shipped ``.conf``-only filters cannot be deleted (returns 409). When
|
|
both a ``.conf`` and a ``.local`` exist, only the ``.local`` is removed.
|
|
When only a ``.local`` exists (user-created filter), the file is deleted
|
|
entirely.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Filter base name.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* contains invalid characters.
|
|
HTTPException: 404 if the filter does not exist.
|
|
HTTPException: 409 if the filter is a shipped default (conf-only).
|
|
HTTPException: 500 if deletion fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
try:
|
|
await config_file_service.delete_filter(config_dir, name)
|
|
except FilterNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except FilterNotFoundError:
|
|
raise _filter_not_found(name) from None
|
|
except FilterReadonlyError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_409_CONFLICT,
|
|
detail=str(exc),
|
|
) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to delete filter: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.post(
|
|
"/jails/{name}/filter",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
summary="Assign a filter to a jail",
|
|
)
|
|
async def assign_filter_to_jail(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _NamePath,
|
|
body: AssignFilterRequest,
|
|
reload: bool = Query(default=False, description="Reload fail2ban after assigning."),
|
|
) -> None:
|
|
"""Write ``filter = {filter_name}`` to the jail's ``.local`` config.
|
|
|
|
Existing keys in the jail's ``.local`` file are preserved. If the file
|
|
does not exist it is created.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Jail name.
|
|
body: Filter to assign.
|
|
reload: When ``true``, trigger a fail2ban reload after writing.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* or *filter_name* contain invalid characters.
|
|
HTTPException: 404 if the jail or filter does not exist.
|
|
HTTPException: 500 if writing fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
await config_file_service.assign_filter_to_jail(
|
|
config_dir, socket_path, name, body, do_reload=reload
|
|
)
|
|
except (JailNameError, FilterNameError) as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except JailNotFoundInConfigError:
|
|
raise _not_found(name) from None
|
|
except FilterNotFoundError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_404_NOT_FOUND,
|
|
detail=f"Filter not found: {exc.name!r}",
|
|
) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write jail override: {exc}",
|
|
) from exc
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Action discovery endpoints (Task 3.1)
|
|
# ---------------------------------------------------------------------------
|
|
|
|
_ActionNamePath = Annotated[
|
|
str,
|
|
Path(description="Action base name, e.g. ``iptables`` or ``iptables.conf``."),
|
|
]
|
|
|
|
|
|
def _action_not_found(name: str) -> HTTPException:
|
|
return HTTPException(
|
|
status_code=status.HTTP_404_NOT_FOUND,
|
|
detail=f"Action not found: {name!r}",
|
|
)
|
|
|
|
|
|
@router.get(
|
|
"/actions",
|
|
response_model=ActionListResponse,
|
|
summary="List all available actions with active/inactive status",
|
|
)
|
|
async def list_actions(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
) -> ActionListResponse:
|
|
"""Return all actions discovered in ``action.d/`` with active/inactive status.
|
|
|
|
Scans ``{config_dir}/action.d/`` for ``.conf`` files, merges any
|
|
corresponding ``.local`` overrides, and cross-references each action's
|
|
name against the ``action`` fields of currently running jails to determine
|
|
whether it is active.
|
|
|
|
Active actions (those used by at least one running jail) are sorted to the
|
|
top of the list; inactive actions follow. Both groups are sorted
|
|
alphabetically within themselves.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session — enforces authentication.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.ActionListResponse` with all discovered
|
|
actions.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
result = await config_file_service.list_actions(config_dir, socket_path)
|
|
result.actions.sort(key=lambda a: (not a.active, a.name.lower()))
|
|
return result
|
|
|
|
|
|
@router.get(
|
|
"/actions/{name}",
|
|
response_model=ActionConfig,
|
|
summary="Return full parsed detail for a single action",
|
|
)
|
|
async def get_action(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _ActionNamePath,
|
|
) -> ActionConfig:
|
|
"""Return the full parsed configuration and active/inactive status for one action.
|
|
|
|
Reads ``{config_dir}/action.d/{name}.conf``, merges any corresponding
|
|
``.local`` override, and annotates the result with ``active``,
|
|
``used_by_jails``, ``source_file``, and ``has_local_override``.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session — enforces authentication.
|
|
name: Action base name (with or without ``.conf`` extension).
|
|
|
|
Returns:
|
|
:class:`~app.models.config.ActionConfig`.
|
|
|
|
Raises:
|
|
HTTPException: 404 if the action is not found in ``action.d/``.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
return await config_file_service.get_action(config_dir, socket_path, name)
|
|
except ActionNotFoundError:
|
|
raise _action_not_found(name) from None
|
|
|
|
|
|
# ---------------------------------------------------------------------------
|
|
# Action write endpoints (Task 3.2)
|
|
# ---------------------------------------------------------------------------
|
|
|
|
|
|
@router.put(
|
|
"/actions/{name}",
|
|
response_model=ActionConfig,
|
|
summary="Update an action's .local override with new lifecycle command values",
|
|
)
|
|
async def update_action(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _ActionNamePath,
|
|
body: ActionUpdateRequest,
|
|
reload: bool = Query(default=False, description="Reload fail2ban after writing."),
|
|
) -> ActionConfig:
|
|
"""Update an action's ``[Definition]`` fields by writing a ``.local`` override.
|
|
|
|
Only non-``null`` fields in the request body are written. The original
|
|
``.conf`` file is never modified.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Action base name (with or without ``.conf`` extension).
|
|
body: Partial update — lifecycle commands and ``[Init]`` parameters.
|
|
reload: When ``true``, trigger a fail2ban reload after writing.
|
|
|
|
Returns:
|
|
Updated :class:`~app.models.config.ActionConfig`.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* contains invalid characters.
|
|
HTTPException: 404 if the action does not exist.
|
|
HTTPException: 500 if writing the ``.local`` file fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
return await config_file_service.update_action(
|
|
config_dir, socket_path, name, body, do_reload=reload
|
|
)
|
|
except ActionNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except ActionNotFoundError:
|
|
raise _action_not_found(name) from None
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write action override: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.post(
|
|
"/actions",
|
|
response_model=ActionConfig,
|
|
status_code=status.HTTP_201_CREATED,
|
|
summary="Create a new user-defined action",
|
|
)
|
|
async def create_action(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
body: ActionCreateRequest,
|
|
reload: bool = Query(default=False, description="Reload fail2ban after creating."),
|
|
) -> ActionConfig:
|
|
"""Create a new user-defined action at ``action.d/{name}.local``.
|
|
|
|
Returns 409 if a ``.conf`` or ``.local`` for the requested name already
|
|
exists.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
body: Action name and ``[Definition]`` lifecycle fields.
|
|
reload: When ``true``, trigger a fail2ban reload after creating.
|
|
|
|
Returns:
|
|
:class:`~app.models.config.ActionConfig` for the new action.
|
|
|
|
Raises:
|
|
HTTPException: 400 if the name contains invalid characters.
|
|
HTTPException: 409 if the action already exists.
|
|
HTTPException: 500 if writing fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
return await config_file_service.create_action(
|
|
config_dir, socket_path, body, do_reload=reload
|
|
)
|
|
except ActionNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except ActionAlreadyExistsError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_409_CONFLICT,
|
|
detail=f"Action {exc.name!r} already exists.",
|
|
) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write action: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.delete(
|
|
"/actions/{name}",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
summary="Delete a user-created action's .local file",
|
|
)
|
|
async def delete_action(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _ActionNamePath,
|
|
) -> None:
|
|
"""Delete a user-created action's ``.local`` override file.
|
|
|
|
Shipped ``.conf``-only actions cannot be deleted (returns 409). When
|
|
both a ``.conf`` and a ``.local`` exist, only the ``.local`` is removed.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Action base name.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* contains invalid characters.
|
|
HTTPException: 404 if the action does not exist.
|
|
HTTPException: 409 if the action is a shipped default (conf-only).
|
|
HTTPException: 500 if deletion fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
try:
|
|
await config_file_service.delete_action(config_dir, name)
|
|
except ActionNameError as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except ActionNotFoundError:
|
|
raise _action_not_found(name) from None
|
|
except ActionReadonlyError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_409_CONFLICT,
|
|
detail=str(exc),
|
|
) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to delete action: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.post(
|
|
"/jails/{name}/action",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
summary="Add an action to a jail",
|
|
)
|
|
async def assign_action_to_jail(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _NamePath,
|
|
body: AssignActionRequest,
|
|
reload: bool = Query(default=False, description="Reload fail2ban after assigning."),
|
|
) -> None:
|
|
"""Append an action entry to the jail's ``.local`` config.
|
|
|
|
Existing keys in the jail's ``.local`` file are preserved. If the file
|
|
does not exist it is created. The action is not duplicated if it is
|
|
already present.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Jail name.
|
|
body: Action to add plus optional per-jail parameters.
|
|
reload: When ``true``, trigger a fail2ban reload after writing.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* or *action_name* contain invalid characters.
|
|
HTTPException: 404 if the jail or action does not exist.
|
|
HTTPException: 500 if writing fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
await config_file_service.assign_action_to_jail(
|
|
config_dir, socket_path, name, body, do_reload=reload
|
|
)
|
|
except (JailNameError, ActionNameError) as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except JailNotFoundInConfigError:
|
|
raise _not_found(name) from None
|
|
except ActionNotFoundError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_404_NOT_FOUND,
|
|
detail=f"Action not found: {exc.name!r}",
|
|
) from exc
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write jail override: {exc}",
|
|
) from exc
|
|
|
|
|
|
@router.delete(
|
|
"/jails/{name}/action/{action_name}",
|
|
status_code=status.HTTP_204_NO_CONTENT,
|
|
summary="Remove an action from a jail",
|
|
)
|
|
async def remove_action_from_jail(
|
|
request: Request,
|
|
_auth: AuthDep,
|
|
name: _NamePath,
|
|
action_name: Annotated[str, Path(description="Action base name to remove.")],
|
|
reload: bool = Query(default=False, description="Reload fail2ban after removing."),
|
|
) -> None:
|
|
"""Remove an action from the jail's ``.local`` config.
|
|
|
|
If the jail has no ``.local`` file or the action is not listed there,
|
|
the call is silently idempotent.
|
|
|
|
Args:
|
|
request: FastAPI request object.
|
|
_auth: Validated session.
|
|
name: Jail name.
|
|
action_name: Base name of the action to remove.
|
|
reload: When ``true``, trigger a fail2ban reload after writing.
|
|
|
|
Raises:
|
|
HTTPException: 400 if *name* or *action_name* contain invalid characters.
|
|
HTTPException: 404 if the jail is not found in config files.
|
|
HTTPException: 500 if writing fails.
|
|
"""
|
|
config_dir: str = request.app.state.settings.fail2ban_config_dir
|
|
socket_path: str = request.app.state.settings.fail2ban_socket
|
|
try:
|
|
await config_file_service.remove_action_from_jail(
|
|
config_dir, socket_path, name, action_name, do_reload=reload
|
|
)
|
|
except (JailNameError, ActionNameError) as exc:
|
|
raise _bad_request(str(exc)) from exc
|
|
except JailNotFoundInConfigError:
|
|
raise _not_found(name) from None
|
|
except ConfigWriteError as exc:
|
|
raise HTTPException(
|
|
status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
|
|
detail=f"Failed to write jail override: {exc}",
|
|
) from exc
|
|
|