Files
BanGUI/backend/app/models/config.py

981 lines
38 KiB
Python

"""Configuration view/edit Pydantic models.
Request, response, and domain models for the config router and service.
"""
import datetime
from pathlib import Path
from typing import Literal
from pydantic import Field, field_validator
from app.config import get_settings
from app.models.response import BanGuiBaseModel, CollectionResponse
from app.utils.path_utils import validate_log_path
DNSMode = Literal["yes", "warn", "no", "raw"]
LogEncoding = Literal["auto", "ascii", "utf-8", "UTF-8", "latin-1"]
BackendType = Literal["auto", "polling", "pyinotify", "systemd", "gamin"]
LogLevel = Literal["CRITICAL", "ERROR", "WARNING", "NOTICE", "INFO", "DEBUG"]
LogTarget = Literal["STDOUT", "STDERR", "SYSLOG"]
# ---------------------------------------------------------------------------
# Ban-time escalation
# ---------------------------------------------------------------------------
class BantimeEscalation(BanGuiBaseModel):
"""Incremental ban-time escalation configuration for a jail."""
increment: bool = Field(
default=False,
description="Whether incremental banning is enabled.",
)
factor: float | None = Field(
default=None,
description="Multiplier applied to the base ban time on each repeat offence.",
)
formula: str | None = Field(
default=None,
description="Python expression evaluated to compute the escalated ban time.",
)
multipliers: str | None = Field(
default=None,
description="Space-separated integers used as per-offence multipliers.",
)
max_time: int | None = Field(
default=None,
description="Maximum ban duration in seconds when escalation is active.",
)
rnd_time: int | None = Field(
default=None,
description="Random jitter (seconds) added to each escalated ban time.",
)
overall_jails: bool = Field(
default=False,
description="Count repeat offences across all jails, not just the current one.",
)
class BantimeEscalationUpdate(BanGuiBaseModel):
"""Partial update payload for ban-time escalation settings."""
increment: bool | None = Field(default=None)
factor: float | None = Field(default=None)
formula: str | None = Field(default=None)
multipliers: str | None = Field(default=None)
max_time: int | None = Field(default=None)
rnd_time: int | None = Field(default=None)
overall_jails: bool | None = Field(default=None)
# ---------------------------------------------------------------------------
# Jail configuration models
# ---------------------------------------------------------------------------
class JailConfig(BanGuiBaseModel):
"""Configuration snapshot of a single jail (editable fields)."""
name: str = Field(..., description="Jail name as configured in fail2ban.")
ban_time: int = Field(..., description="Ban duration in seconds. -1 for permanent.")
max_retry: int = Field(..., ge=1, description="Number of failures before a ban is issued.")
find_time: int = Field(..., ge=1, description="Time window (seconds) for counting failures.")
fail_regex: list[str] = Field(default_factory=list, description="Failure detection regex patterns.")
ignore_regex: list[str] = Field(default_factory=list, description="Regex patterns that bypass the ban logic.")
log_paths: list[str] = Field(default_factory=list, description="Monitored log files.")
date_pattern: str | None = Field(default=None, description="Custom date pattern for log parsing.")
log_encoding: LogEncoding = Field(default="UTF-8", description="Log file encoding.")
backend: BackendType = Field(default="polling", description="Log monitoring backend.")
use_dns: DNSMode = Field(default="warn", description="DNS lookup mode: yes | warn | no | raw.")
prefregex: str = Field(default="", description="Prefix regex prepended to every failregex; empty means disabled.")
actions: list[str] = Field(default_factory=list, description="Names of actions attached to this jail.")
bantime_escalation: BantimeEscalation | None = Field(
default=None,
description="Incremental ban-time escalation settings, or None if not configured.",
)
class JailConfigResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/jails/{name}``."""
jail: JailConfig
class JailConfigListResponse(CollectionResponse[JailConfig]):
"""Response for ``GET /api/config/jails``.
Returns a non-paginated collection of jail configurations.
"""
pass
class JailConfigUpdate(BanGuiBaseModel):
"""Payload for ``PUT /api/config/jails/{name}``."""
ban_time: int | None = Field(default=None, description="Ban duration in seconds. -1 for permanent.")
max_retry: int | None = Field(default=None, ge=1)
find_time: int | None = Field(default=None, ge=1)
fail_regex: list[str] | None = Field(default=None, description="Failure detection regex patterns.")
ignore_regex: list[str] | None = Field(default=None)
prefregex: str | None = Field(default=None, description="Prefix regex; None = skip, '' = clear, non-empty = set.")
date_pattern: str | None = Field(default=None)
dns_mode: DNSMode | None = Field(default=None, description="DNS lookup mode: yes | warn | no | raw.")
backend: BackendType | None = Field(default=None, description="Log monitoring backend.")
log_encoding: LogEncoding | None = Field(default=None, description="Log file encoding.")
enabled: bool | None = Field(default=None)
bantime_escalation: BantimeEscalationUpdate | None = Field(
default=None,
description="Incremental ban-time escalation settings to update.",
)
# ---------------------------------------------------------------------------
# Regex tester models
# ---------------------------------------------------------------------------
class RegexTestRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/regex-test``."""
log_line: str = Field(..., description="Sample log line to test against.")
fail_regex: str = Field(..., description="Regex pattern to match.")
class RegexTestResponse(BanGuiBaseModel):
"""Result of a regex test."""
matched: bool = Field(..., description="Whether the pattern matched the log line.")
groups: list[str] = Field(
default_factory=list,
description="Named groups captured by a successful match.",
)
error: str | None = Field(
default=None,
description="Compilation error message if the regex is invalid.",
)
# ---------------------------------------------------------------------------
# Global config models
# ---------------------------------------------------------------------------
class GlobalConfigResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/global``."""
log_level: LogLevel
log_target: str = Field(..., description="Log target: STDOUT, STDERR, SYSLOG, or a validated file path.")
db_purge_age: int = Field(..., description="Seconds after which ban records are purged from the fail2ban DB.")
db_max_matches: int = Field(..., description="Maximum stored log-line matches per ban record.")
@field_validator("log_target", mode="after")
@classmethod
def validate_log_target(cls, value: str) -> str:
"""Validate that log_target is either a special value or a valid file path.
Args:
value: The log target to validate.
Returns:
The validated log target.
Raises:
ValueError: If the target is not a special value and not in allowed directories.
"""
if value.upper() in ("STDOUT", "STDERR", "SYSLOG"):
return value
settings = get_settings()
try:
resolved_path = Path(value).resolve()
except (OSError, RuntimeError) as e:
raise ValueError(f"Cannot resolve path {value!r}: {e}") from e
for allowed_dir in settings.allowed_log_dirs:
allowed_path = Path(allowed_dir).resolve()
try:
resolved_path.relative_to(allowed_path)
return value
except ValueError:
continue
allowed_dirs_str = ", ".join(settings.allowed_log_dirs)
raise ValueError(
f"Log target {value!r} is outside allowed directories: {allowed_dirs_str}"
)
class GlobalConfigUpdate(BanGuiBaseModel):
"""Payload for ``PUT /api/config/global``."""
log_level: LogLevel | None = Field(
default=None,
description="Log level: CRITICAL, ERROR, WARNING, NOTICE, INFO, or DEBUG.",
)
log_target: str | None = Field(
default=None,
description="Log target: STDOUT, STDERR, SYSLOG, or a validated file path.",
)
db_purge_age: int | None = Field(default=None, ge=0)
db_max_matches: int | None = Field(default=None, ge=0)
@field_validator("log_target", mode="after")
@classmethod
def validate_log_target(cls, value: str | None) -> str | None:
"""Validate that log_target is either a special value or a valid file path.
Args:
value: The log target to validate, or None.
Returns:
The validated log target, or None if input was None.
Raises:
ValueError: If the target is not a special value and not in allowed directories.
"""
if value is None:
return None
if value.upper() in ("STDOUT", "STDERR", "SYSLOG"):
return value
settings = get_settings()
try:
resolved_path = Path(value).resolve()
except (OSError, RuntimeError) as e:
raise ValueError(f"Cannot resolve path {value!r}: {e}") from e
for allowed_dir in settings.allowed_log_dirs:
allowed_path = Path(allowed_dir).resolve()
try:
resolved_path.relative_to(allowed_path)
return value
except ValueError:
continue
allowed_dirs_str = ", ".join(settings.allowed_log_dirs)
raise ValueError(
f"Log target {value!r} is outside allowed directories: {allowed_dirs_str}"
)
# ---------------------------------------------------------------------------
# Log observation / preview models
# ---------------------------------------------------------------------------
class AddLogPathRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/jails/{name}/logpath``."""
log_path: str = Field(..., description="Absolute path to the log file to monitor.")
tail: bool = Field(
default=True,
description="If true, monitor from current end of file (tail). If false, read from the beginning.",
)
@field_validator("log_path", mode="after")
@classmethod
def validate_log_path_field(cls, value: str) -> str:
"""Validate that the log path is within allowed directories.
Args:
value: The log path to validate.
Returns:
The validated log path.
Raises:
ValueError: If the path is outside allowed log directories.
"""
return validate_log_path(value)
class LogPreviewRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/preview-log``."""
log_path: str = Field(..., description="Absolute path to the log file to preview.")
fail_regex: str = Field(..., description="Regex pattern to test against log lines.")
num_lines: int = Field(default=200, ge=1, le=5000, description="Number of lines to read from the end of the file.")
class LogPreviewLine(BanGuiBaseModel):
"""A single log line with match information."""
line: str
matched: bool
groups: list[str] = Field(default_factory=list)
class LogPreviewResponse(BanGuiBaseModel):
"""Response for ``POST /api/config/preview-log``."""
lines: list[LogPreviewLine] = Field(default_factory=list)
total_lines: int = Field(..., ge=0)
matched_count: int = Field(..., ge=0)
regex_error: str | None = Field(default=None, description="Set if the regex failed to compile.")
# ---------------------------------------------------------------------------
# Map color threshold models
# ---------------------------------------------------------------------------
class MapColorThresholdsResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/map-thresholds``."""
threshold_high: int = Field(
..., description="Ban count for red coloring."
)
threshold_medium: int = Field(
..., description="Ban count for yellow coloring."
)
threshold_low: int = Field(
..., description="Ban count for green coloring."
)
class MapColorThresholdsUpdate(BanGuiBaseModel):
"""Payload for ``PUT /api/config/map-thresholds``."""
threshold_high: int = Field(..., gt=0, description="Ban count for red.")
threshold_medium: int = Field(
..., gt=0, description="Ban count for yellow."
)
threshold_low: int = Field(..., gt=0, description="Ban count for green.")
# ---------------------------------------------------------------------------
# Parsed filter file models
# ---------------------------------------------------------------------------
class FilterConfig(BanGuiBaseModel):
"""Structured representation of a ``filter.d/*.conf`` file.
The ``active``, ``used_by_jails``, ``source_file``, and
``has_local_override`` fields are populated by
:func:`~app.services.filter_config_service.list_filters` and
:func:`~app.services.filter_config_service.get_filter`. When the model is
returned from the raw file-based endpoints (``/filters/{name}/parsed``),
these fields carry their default values.
"""
name: str = Field(..., description="Filter base name, e.g. ``sshd``.")
filename: str = Field(..., description="Actual filename, e.g. ``sshd.conf``.")
# [INCLUDES]
before: str | None = Field(default=None, description="Included file read before this one.")
after: str | None = Field(default=None, description="Included file read after this one.")
# [DEFAULT] — free-form key=value pairs
variables: dict[str, str] = Field(
default_factory=dict,
description="Free-form ``[DEFAULT]`` section variables.",
)
# [Definition]
prefregex: str | None = Field(
default=None,
description="Prefix regex prepended to every failregex.",
)
failregex: list[str] = Field(
default_factory=list,
description="Failure detection regex patterns (one per list entry).",
)
ignoreregex: list[str] = Field(
default_factory=list,
description="Regex patterns that bypass ban logic.",
)
maxlines: int | None = Field(
default=None,
description="Maximum number of log lines accumulated for a single match attempt.",
)
datepattern: str | None = Field(
default=None,
description="Custom date-parsing pattern, or ``None`` for auto-detect.",
)
journalmatch: str | None = Field(
default=None,
description="Systemd journal match expression.",
)
# Active-status fields — populated by filter_config_service.list_filters /
# get_filter; default to safe "inactive" values when not computed.
active: bool = Field(
default=False,
description=(
"``True`` when this filter is referenced by at least one currently "
"enabled (running) jail."
),
)
used_by_jails: list[str] = Field(
default_factory=list,
description=(
"Names of currently enabled jails that reference this filter. "
"Empty when ``active`` is ``False``."
),
)
source_file: str = Field(
default="",
description="Absolute path to the ``.conf`` source file for this filter.",
)
has_local_override: bool = Field(
default=False,
description=(
"``True`` when a ``.local`` override file exists alongside the "
"base ``.conf`` file."
),
)
class FilterConfigUpdate(BanGuiBaseModel):
"""Partial update payload for a parsed filter file.
Only explicitly set (non-``None``) fields are written back.
"""
before: str | None = Field(default=None)
after: str | None = Field(default=None)
variables: dict[str, str] | None = Field(default=None)
prefregex: str | None = Field(default=None)
failregex: list[str] | None = Field(default=None)
ignoreregex: list[str] | None = Field(default=None)
maxlines: int | None = Field(default=None)
datepattern: str | None = Field(default=None)
journalmatch: str | None = Field(default=None)
class FilterUpdateRequest(BanGuiBaseModel):
"""Payload for ``PUT /api/config/filters/{name}``.
Accepts only the user-editable ``[Definition]`` fields. Fields left as
``None`` are not changed; the existing value from the merged conf/local is
preserved.
"""
failregex: list[str] | None = Field(
default=None,
description="Updated failure-detection regex patterns. ``None`` = keep existing.",
)
ignoreregex: list[str] | None = Field(
default=None,
description="Updated bypass-ban regex patterns. ``None`` = keep existing.",
)
datepattern: str | None = Field(
default=None,
description="Custom date-parsing pattern. ``None`` = keep existing.",
)
journalmatch: str | None = Field(
default=None,
description="Systemd journal match expression. ``None`` = keep existing.",
)
class FilterCreateRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/filters``.
Creates a new user-defined filter at ``filter.d/{name}.local``.
"""
name: str = Field(
...,
description="Filter base name (e.g. ``my-custom-filter``). Must not already exist in ``filter.d/``.",
)
failregex: list[str] = Field(
default_factory=list,
description="Failure-detection regex patterns.",
)
ignoreregex: list[str] = Field(
default_factory=list,
description="Regex patterns that bypass ban logic.",
)
prefregex: str | None = Field(
default=None,
description="Prefix regex prepended to every failregex.",
)
datepattern: str | None = Field(
default=None,
description="Custom date-parsing pattern.",
)
journalmatch: str | None = Field(
default=None,
description="Systemd journal match expression.",
)
class AssignFilterRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/jails/{jail_name}/filter``."""
filter_name: str = Field(
...,
description="Filter base name to assign to the jail (e.g. ``sshd``).",
)
class FilterListResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/filters``."""
filters: list[FilterConfig] = Field(
default_factory=list,
description=(
"All discovered filters, each annotated with active/inactive status "
"and the jails that reference them."
),
)
total: int = Field(..., ge=0, description="Total number of filters found.")
# ---------------------------------------------------------------------------
# Parsed action file models
# ---------------------------------------------------------------------------
class ActionConfig(BanGuiBaseModel):
"""Structured representation of an ``action.d/*.conf`` file."""
name: str = Field(..., description="Action base name, e.g. ``iptables``.")
filename: str = Field(..., description="Actual filename, e.g. ``iptables.conf``.")
# [INCLUDES]
before: str | None = Field(default=None)
after: str | None = Field(default=None)
# [Definition] — well-known lifecycle commands
actionstart: str | None = Field(
default=None,
description="Executed at jail start or first ban.",
)
actionstop: str | None = Field(
default=None,
description="Executed at jail stop.",
)
actioncheck: str | None = Field(
default=None,
description="Executed before each ban.",
)
actionban: str | None = Field(
default=None,
description="Executed to ban an IP. Tags: ``<ip>``, ``<name>``, ``<port>``.",
)
actionunban: str | None = Field(
default=None,
description="Executed to unban an IP.",
)
actionflush: str | None = Field(
default=None,
description="Executed to flush all bans on shutdown.",
)
# [Definition] — extra variables not covered by the well-known keys
definition_vars: dict[str, str] = Field(
default_factory=dict,
description="Additional ``[Definition]`` variables.",
)
# [Init] — runtime-configurable parameters
init_vars: dict[str, str] = Field(
default_factory=dict,
description="Runtime parameters that can be overridden per jail.",
)
# Active-status fields — populated by action_config_service.list_actions /
# get_action; default to safe "inactive" values when not computed.
active: bool = Field(
default=False,
description=(
"``True`` when this action is referenced by at least one currently "
"enabled (running) jail."
),
)
used_by_jails: list[str] = Field(
default_factory=list,
description=(
"Names of currently enabled jails that reference this action. "
"Empty when ``active`` is ``False``."
),
)
source_file: str = Field(
default="",
description="Absolute path to the ``.conf`` source file for this action.",
)
has_local_override: bool = Field(
default=False,
description=(
"``True`` when a ``.local`` override file exists alongside the "
"base ``.conf`` file."
),
)
class ActionConfigUpdate(BanGuiBaseModel):
"""Partial update payload for a parsed action file."""
before: str | None = Field(default=None)
after: str | None = Field(default=None)
actionstart: str | None = Field(default=None)
actionstop: str | None = Field(default=None)
actioncheck: str | None = Field(default=None)
actionban: str | None = Field(default=None)
actionunban: str | None = Field(default=None)
actionflush: str | None = Field(default=None)
definition_vars: dict[str, str] | None = Field(default=None)
init_vars: dict[str, str] | None = Field(default=None)
class ActionListResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/actions``."""
actions: list[ActionConfig] = Field(
default_factory=list,
description=(
"All discovered actions, each annotated with active/inactive status "
"and the jails that reference them."
),
)
total: int = Field(..., ge=0, description="Total number of actions found.")
class ActionUpdateRequest(BanGuiBaseModel):
"""Payload for ``PUT /api/config/actions/{name}``.
Accepts only the user-editable ``[Definition]`` lifecycle fields and
``[Init]`` parameters. Fields left as ``None`` are not changed.
"""
actionstart: str | None = Field(
default=None,
description="Updated ``actionstart`` command. ``None`` = keep existing.",
)
actionstop: str | None = Field(
default=None,
description="Updated ``actionstop`` command. ``None`` = keep existing.",
)
actioncheck: str | None = Field(
default=None,
description="Updated ``actioncheck`` command. ``None`` = keep existing.",
)
actionban: str | None = Field(
default=None,
description="Updated ``actionban`` command. ``None`` = keep existing.",
)
actionunban: str | None = Field(
default=None,
description="Updated ``actionunban`` command. ``None`` = keep existing.",
)
actionflush: str | None = Field(
default=None,
description="Updated ``actionflush`` command. ``None`` = keep existing.",
)
definition_vars: dict[str, str] | None = Field(
default=None,
description="Additional ``[Definition]`` variables to set. ``None`` = keep existing.",
)
init_vars: dict[str, str] | None = Field(
default=None,
description="``[Init]`` parameters to set. ``None`` = keep existing.",
)
class ActionCreateRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/actions``.
Creates a new user-defined action at ``action.d/{name}.local``.
"""
name: str = Field(
...,
description="Action base name (e.g. ``my-custom-action``). Must not already exist.",
)
actionstart: str | None = Field(default=None, description="Command to execute at jail start.")
actionstop: str | None = Field(default=None, description="Command to execute at jail stop.")
actioncheck: str | None = Field(default=None, description="Command to execute before each ban.")
actionban: str | None = Field(default=None, description="Command to execute to ban an IP.")
actionunban: str | None = Field(default=None, description="Command to execute to unban an IP.")
actionflush: str | None = Field(default=None, description="Command to flush all bans on shutdown.")
definition_vars: dict[str, str] = Field(
default_factory=dict,
description="Additional ``[Definition]`` variables.",
)
init_vars: dict[str, str] = Field(
default_factory=dict,
description="``[Init]`` runtime parameters.",
)
class AssignActionRequest(BanGuiBaseModel):
"""Payload for ``POST /api/config/jails/{jail_name}/action``."""
action_name: str = Field(
...,
description="Action base name to add to the jail (e.g. ``iptables-multiport``).",
)
params: dict[str, str] = Field(
default_factory=dict,
description=(
"Optional per-jail action parameters written as "
"``action_name[key=value, ...]`` in the jail config."
),
)
# ---------------------------------------------------------------------------
# Jail file config models (Task 6.1)
# ---------------------------------------------------------------------------
class JailSectionConfig(BanGuiBaseModel):
"""Settings within a single [jailname] section of a jail.d file."""
enabled: bool | None = Field(default=None, description="Whether this jail is enabled.")
port: str | None = Field(default=None, description="Port(s) to monitor (e.g. 'ssh' or '22,2222').")
filter: str | None = Field(default=None, description="Filter name to use (e.g. 'sshd').")
logpath: list[str] = Field(default_factory=list, description="Log file paths to monitor.")
maxretry: int | None = Field(default=None, ge=1, description="Failures before banning.")
findtime: int | None = Field(default=None, ge=1, description="Time window in seconds for counting failures.")
bantime: int | None = Field(default=None, description="Ban duration in seconds. -1 for permanent.")
action: list[str] = Field(default_factory=list, description="Action references.")
backend: BackendType | None = Field(default=None, description="Log monitoring backend.")
extra: dict[str, str] = Field(default_factory=dict, description="Additional settings not captured by named fields.")
class JailFileConfig(BanGuiBaseModel):
"""Structured representation of a jail.d/*.conf file."""
filename: str = Field(..., description="Filename including extension (e.g. 'sshd.conf').")
jails: dict[str, JailSectionConfig] = Field(
default_factory=dict,
description="Mapping of jail name → settings for each [section] in the file.",
)
class JailFileConfigUpdate(BanGuiBaseModel):
"""Partial update payload for a jail.d file."""
jails: dict[str, JailSectionConfig] | None = Field(
default=None,
description="Jail section updates. Only jails present in this dict are updated.",
)
# ---------------------------------------------------------------------------
# Inactive jail models (Stage 1)
# ---------------------------------------------------------------------------
class InactiveJail(BanGuiBaseModel):
"""A jail defined in fail2ban config files that is not currently active.
A jail is considered inactive when its ``enabled`` key is ``false`` (or
absent from the config, since fail2ban defaults to disabled) **or** when it
is explicitly enabled in config but fail2ban is not reporting it as
running.
"""
name: str = Field(..., description="Jail name from the config section header.")
filter: str = Field(
...,
description=(
"Filter name used by this jail. May include fail2ban mode suffix, "
"e.g. ``sshd[mode=normal]``."
),
)
actions: list[str] = Field(
default_factory=list,
description="Action references listed in the config (raw strings).",
)
port: str | None = Field(
default=None,
description="Port(s) to monitor, e.g. ``ssh`` or ``22,2222``.",
)
logpath: list[str] = Field(
default_factory=list,
description="Log file paths to monitor.",
)
bantime: str | None = Field(
default=None,
description="Ban duration as a raw config string, e.g. ``10m`` or ``-1``.",
)
findtime: str | None = Field(
default=None,
description="Failure-counting window as a raw config string, e.g. ``10m``.",
)
maxretry: int | None = Field(
default=None,
description="Number of failures before a ban is issued.",
)
# ---- Extended fields for full GUI display ----
ban_time_seconds: int = Field(
default=600,
description="Ban duration in seconds, parsed from bantime string.",
)
find_time_seconds: int = Field(
default=600,
description="Failure-counting window in seconds, parsed from findtime string.",
)
log_encoding: LogEncoding = Field(
default="auto",
description="Log encoding, e.g. ``utf-8`` or ``auto``.",
)
backend: BackendType = Field(
default="auto",
description="Log-monitoring backend, e.g. ``auto``, ``pyinotify``, ``polling``.",
)
date_pattern: str | None = Field(
default=None,
description="Date pattern for log parsing, or None for auto-detect.",
)
use_dns: DNSMode = Field(
default="warn",
description="DNS resolution mode: ``yes``, ``warn``, ``no``, or ``raw``.",
)
prefregex: str = Field(
default="",
description="Prefix regex prepended to every failregex.",
)
fail_regex: list[str] = Field(
default_factory=list,
description="List of failure regex patterns.",
)
ignore_regex: list[str] = Field(
default_factory=list,
description="List of ignore regex patterns.",
)
bantime_escalation: BantimeEscalation | None = Field(
default=None,
description="Ban-time escalation configuration, if enabled.",
)
source_file: str = Field(
...,
description="Absolute path to the config file where this jail is defined.",
)
enabled: bool = Field(
...,
description=(
"Effective ``enabled`` value from the merged config. ``False`` for "
"inactive jails that appear in this list."
),
)
has_local_override: bool = Field(
default=False,
description=(
"``True`` when a ``jail.d/{name}.local`` file exists for this jail. "
"Only meaningful for inactive jails; indicates that a cleanup action "
"is available."
),
)
class InactiveJailListResponse(CollectionResponse[InactiveJail]):
"""Response for ``GET /api/config/jails/inactive``.
Returns a non-paginated collection of inactive jail configurations.
"""
pass
class ActivateJailRequest(BanGuiBaseModel):
"""Optional override values when activating an inactive jail.
All fields are optional. Omitted fields are not written to the
``.local`` override file so that fail2ban falls back to its default
values.
"""
bantime: str | None = Field(
default=None,
description="Override ban duration, e.g. ``1h`` or ``3600``.",
)
findtime: str | None = Field(
default=None,
description="Override failure-counting window, e.g. ``10m``.",
)
maxretry: int | None = Field(
default=None,
ge=1,
description="Override maximum failures before a ban.",
)
port: str | None = Field(
default=None,
description="Override port(s) to monitor.",
)
logpath: list[str] | None = Field(
default=None,
description="Override log file paths.",
)
class JailActivationResponse(BanGuiBaseModel):
"""Response for jail activation and deactivation endpoints."""
name: str = Field(..., description="Name of the affected jail.")
active: bool = Field(
...,
description="New activation state: ``True`` after activate, ``False`` after deactivate.",
)
message: str = Field(..., description="Human-readable result message.")
fail2ban_running: bool = Field(
default=True,
description=(
"Whether the fail2ban daemon is still running after the activation "
"and reload. ``False`` signals that the daemon may have crashed."
),
)
validation_warnings: list[str] = Field(
default_factory=list,
description="Non-fatal warnings from the pre-activation validation step.",
)
recovered: bool | None = Field(
default=None,
description=(
"Set when activation failed after writing the config file. "
"``True`` means the system automatically rolled back the change and "
"restarted fail2ban. ``False`` means the rollback itself also "
"failed and manual intervention is required. ``None`` when "
"activation succeeded or failed before the file was written."
),
)
# ---------------------------------------------------------------------------
# Jail validation models (Task 3)
# ---------------------------------------------------------------------------
class JailValidationIssue(BanGuiBaseModel):
"""A single issue found during pre-activation validation of a jail config."""
field: str = Field(
...,
description="Config field associated with this issue, e.g. 'filter', 'failregex', 'logpath'.",
)
message: str = Field(..., description="Human-readable description of the issue.")
class JailValidationResult(BanGuiBaseModel):
"""Result of pre-activation validation of a single jail configuration."""
jail_name: str = Field(..., description="Name of the validated jail.")
valid: bool = Field(..., description="True when no issues were found.")
issues: list[JailValidationIssue] = Field(
default_factory=list,
description="Validation issues found. Empty when valid=True.",
)
# ---------------------------------------------------------------------------
# Rollback response model (Task 3)
# ---------------------------------------------------------------------------
class RollbackResponse(BanGuiBaseModel):
"""Response for ``POST /api/config/jails/{name}/rollback``."""
jail_name: str = Field(..., description="Name of the jail that was disabled.")
disabled: bool = Field(
...,
description="Whether the jail's .local override was successfully written with enabled=false.",
)
fail2ban_running: bool = Field(
...,
description="Whether fail2ban is online after the rollback attempt.",
)
active_jails: int = Field(
default=0,
ge=0,
description="Number of currently active jails after a successful restart.",
)
message: str = Field(..., description="Human-readable result message.")
# ---------------------------------------------------------------------------
# Pending recovery model (Task 3)
# ---------------------------------------------------------------------------
class PendingRecovery(BanGuiBaseModel):
"""Records a probable activation-caused fail2ban crash pending user action."""
jail_name: str = Field(
...,
description="Name of the jail whose activation likely caused the crash.",
)
activated_at: datetime.datetime = Field(
...,
description="ISO-8601 UTC timestamp of when the jail was activated.",
)
detected_at: datetime.datetime = Field(
...,
description="ISO-8601 UTC timestamp of when the crash was detected.",
)
recovered: bool = Field(
default=False,
description="Whether fail2ban has been successfully restarted.",
)
# ---------------------------------------------------------------------------
# fail2ban log viewer models
# ---------------------------------------------------------------------------
class Fail2BanLogResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/fail2ban-log``."""
log_path: str = Field(..., description="Resolved absolute path of the log file being read.")
lines: list[str] = Field(default_factory=list, description="Log lines returned (tail, optionally filtered).")
total_lines: int = Field(..., ge=0, description="Total number of lines in the file before filtering.")
log_level: str = Field(..., description="Current fail2ban log level.")
log_target: str = Field(..., description="Current fail2ban log target (file path or special value).")
class ServiceStatusResponse(BanGuiBaseModel):
"""Response for ``GET /api/config/service-status``."""
online: bool = Field(..., description="Whether fail2ban is reachable via its socket.")
version: str | None = Field(default=None, description="BanGUI application version (or None when offline).")
jail_count: int = Field(default=0, ge=0, description="Number of currently active jails.")
total_bans: int = Field(default=0, ge=0, description="Aggregated current ban count across all jails.")
total_failures: int = Field(default=0, ge=0, description="Aggregated current failure count across all jails.")
log_level: str = Field(default="UNKNOWN", description="Current fail2ban log level.")
log_target: str = Field(default="UNKNOWN", description="Current fail2ban log target.")