Files
nfoguard/config/validator.py
T
2025-09-29 08:59:47 -04:00

498 lines
20 KiB
Python

"""
Configuration Validator for NFOGuard
Provides comprehensive validation of all configuration settings with detailed error reporting
"""
import os
import re
from pathlib import Path
from typing import Dict, List, Any, Optional, Union, Type, Callable
from dataclasses import dataclass, field
from enum import Enum
from utils.exceptions import ConfigurationError
from utils.validation import validate_url_format
class ValidationSeverity(Enum):
"""Severity levels for validation issues"""
ERROR = "error" # Configuration is invalid, will cause failures
WARNING = "warning" # Configuration may cause issues but is workable
INFO = "info" # Configuration could be improved
@dataclass
class ValidationIssue:
"""Represents a configuration validation issue"""
setting: str
severity: ValidationSeverity
message: str
current_value: Any = None
suggested_value: Any = None
details: Dict[str, Any] = field(default_factory=dict)
def to_dict(self) -> Dict[str, Any]:
"""Convert to dictionary for structured logging"""
return {
"setting": self.setting,
"severity": self.severity.value,
"message": self.message,
"current_value": str(self.current_value) if self.current_value is not None else None,
"suggested_value": str(self.suggested_value) if self.suggested_value is not None else None,
"details": self.details
}
@dataclass
class ValidationResult:
"""Results of configuration validation"""
is_valid: bool
issues: List[ValidationIssue] = field(default_factory=list)
warnings_count: int = 0
errors_count: int = 0
def add_issue(self, issue: ValidationIssue) -> None:
"""Add a validation issue"""
self.issues.append(issue)
if issue.severity == ValidationSeverity.ERROR:
self.errors_count += 1
self.is_valid = False
elif issue.severity == ValidationSeverity.WARNING:
self.warnings_count += 1
def get_errors(self) -> List[ValidationIssue]:
"""Get only error-level issues"""
return [issue for issue in self.issues if issue.severity == ValidationSeverity.ERROR]
def get_warnings(self) -> List[ValidationIssue]:
"""Get only warning-level issues"""
return [issue for issue in self.issues if issue.severity == ValidationSeverity.WARNING]
def to_dict(self) -> Dict[str, Any]:
"""Convert to dictionary for structured logging"""
return {
"is_valid": self.is_valid,
"errors_count": self.errors_count,
"warnings_count": self.warnings_count,
"issues": [issue.to_dict() for issue in self.issues]
}
class ConfigValidator:
"""Comprehensive configuration validator for NFOGuard"""
def __init__(self):
self.result = ValidationResult(is_valid=True)
# Define validation rules
self._path_settings = {
"TV_PATHS", "MOVIE_PATHS", "RADARR_ROOT_FOLDERS",
"SONARR_ROOT_FOLDERS", "DB_PATH", "LOG_DIR"
}
self._url_settings = {
"RADARR_URL", "SONARR_URL", "JELLYSEERR_URL"
}
self._required_settings = {
"TV_PATHS", "MOVIE_PATHS"
}
self._numeric_settings = {
"BATCH_DELAY": (float, 0.1, 300.0),
"MAX_CONCURRENT_SERIES": (int, 1, 10),
"TIMEOUT_SECONDS": (int, 10, 300),
"PORT": (int, 1024, 65535),
"RADARR_DB_PORT": (int, 1, 65535),
"MAX_RELEASE_DATE_GAP_YEARS": (int, 1, 50)
}
self._boolean_settings = {
"MANAGE_NFO", "FIX_DIR_MTIMES", "LOCK_METADATA", "DEBUG",
"PREFER_RELEASE_DATES_OVER_FILE_DATES", "ALLOW_FILE_DATE_FALLBACK",
"ENABLE_SMART_DATE_VALIDATION", "PATH_DEBUG", "SUPPRESS_TVDB_WARNINGS"
}
self._choice_settings = {
"MOVIE_PRIORITY": ["import_then_digital", "digital_first", "file_date_only"],
"MOVIE_POLL_MODE": ["always", "missing_only", "never"],
"MOVIE_DATE_UPDATE_MODE": ["overwrite", "backfill_only", "preserve_existing"],
"TV_WEBHOOK_PROCESSING_MODE": ["targeted", "full_scan", "hybrid"],
"UPDATE_MODE": ["always", "missing_only", "never"],
"MTIME_BEHAVIOR": ["update", "leave_alone"],
"RADARR_DB_TYPE": ["postgresql", "sqlite"]
}
def validate_all(self) -> ValidationResult:
"""Validate all configuration settings"""
self.result = ValidationResult(is_valid=True)
# Validate required settings
self._validate_required_settings()
# Validate paths
self._validate_paths()
# Validate URLs
self._validate_urls()
# Validate numeric settings
self._validate_numeric_settings()
# Validate boolean settings
self._validate_boolean_settings()
# Validate choice settings
self._validate_choice_settings()
# Validate database configuration
self._validate_database_config()
# Validate release date configuration
self._validate_release_date_config()
# Validate performance settings
self._validate_performance_settings()
# Validate cross-setting dependencies
self._validate_dependencies()
return self.result
def _validate_required_settings(self) -> None:
"""Validate required environment variables are set"""
for setting in self._required_settings:
value = os.environ.get(setting)
if not value:
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Required setting {setting} is not set",
current_value=value
))
elif not value.strip():
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Required setting {setting} is empty",
current_value=value
))
def _validate_paths(self) -> None:
"""Validate all path-related settings"""
for setting in self._path_settings:
value = os.environ.get(setting)
if not value:
if setting in self._required_settings:
continue # Already handled in required validation
else:
# Optional path settings
continue
if setting in {"TV_PATHS", "MOVIE_PATHS", "RADARR_ROOT_FOLDERS", "SONARR_ROOT_FOLDERS"}:
# Multi-path settings
paths = [p.strip() for p in value.split(",") if p.strip()]
if not paths:
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"No valid paths found in {setting}",
current_value=value
))
continue
for path_str in paths:
self._validate_single_path(setting, path_str)
else:
# Single path settings
self._validate_single_path(setting, value)
def _validate_single_path(self, setting: str, path_str: str) -> None:
"""Validate a single path"""
try:
path = Path(path_str)
# Check if path is absolute (recommended for Docker)
if not path.is_absolute():
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.WARNING,
message=f"Path should be absolute for reliable Docker operation",
current_value=path_str,
suggested_value=f"Use absolute path like /media/..."
))
# For media paths, check existence if not in container
if setting in {"TV_PATHS", "MOVIE_PATHS"} and not self._is_likely_container_path(path_str):
if not path.exists():
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.WARNING,
message=f"Path does not exist (may be valid in container)",
current_value=path_str,
details={"path_type": "media"}
))
elif not path.is_dir():
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Path exists but is not a directory",
current_value=path_str
))
# Check for database directory
if setting == "DB_PATH":
parent_dir = path.parent
if not self._is_likely_container_path(str(parent_dir)) and not parent_dir.exists():
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.WARNING,
message=f"Database directory does not exist: {parent_dir}",
current_value=path_str
))
except (OSError, ValueError) as e:
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Invalid path format: {e}",
current_value=path_str
))
def _is_likely_container_path(self, path: str) -> bool:
"""Check if path looks like a container path"""
container_indicators = ["/app/", "/media/", "/config/", "/data/"]
return any(indicator in path for indicator in container_indicators)
def _validate_urls(self) -> None:
"""Validate URL settings"""
for setting in self._url_settings:
value = os.environ.get(setting)
if value and not validate_url_format(value):
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Invalid URL format",
current_value=value,
suggested_value="Use format: http://hostname:port or https://hostname:port"
))
def _validate_numeric_settings(self) -> None:
"""Validate numeric settings"""
for setting, (type_class, min_val, max_val) in self._numeric_settings.items():
value = os.environ.get(setting)
if not value:
continue
try:
numeric_value = type_class(value)
if numeric_value < min_val or numeric_value > max_val:
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Value must be between {min_val} and {max_val}",
current_value=value,
suggested_value=f"Use value between {min_val}-{max_val}"
))
except (ValueError, TypeError):
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Invalid {type_class.__name__} value",
current_value=value,
suggested_value=f"Use a valid {type_class.__name__} between {min_val}-{max_val}"
))
def _validate_boolean_settings(self) -> None:
"""Validate boolean settings"""
valid_true = {"1", "true", "yes", "y", "on"}
valid_false = {"0", "false", "no", "n", "off"}
valid_values = valid_true | valid_false
for setting in self._boolean_settings:
value = os.environ.get(setting)
if value and value.lower() not in valid_values:
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Invalid boolean value",
current_value=value,
suggested_value="Use: true/false, 1/0, yes/no, y/n, on/off"
))
def _validate_choice_settings(self) -> None:
"""Validate settings with predefined choices"""
for setting, valid_choices in self._choice_settings.items():
value = os.environ.get(setting)
if value and value.lower() not in [choice.lower() for choice in valid_choices]:
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Invalid choice",
current_value=value,
suggested_value=f"Use one of: {', '.join(valid_choices)}"
))
def _validate_database_config(self) -> None:
"""Validate database configuration"""
db_type = os.environ.get("RADARR_DB_TYPE", "").lower()
if db_type == "postgresql":
# Check required PostgreSQL settings
required_pg_settings = ["RADARR_DB_HOST", "RADARR_DB_NAME", "RADARR_DB_USER"]
for setting in required_pg_settings:
if not os.environ.get(setting):
self.result.add_issue(ValidationIssue(
setting=setting,
severity=ValidationSeverity.ERROR,
message=f"Required for PostgreSQL database connection",
current_value=os.environ.get(setting)
))
def _validate_release_date_config(self) -> None:
"""Validate release date processing configuration"""
priority = os.environ.get("RELEASE_DATE_PRIORITY", "")
if priority:
priorities = [p.strip().lower() for p in priority.split(",")]
valid_priorities = {"digital", "physical", "theatrical"}
invalid_priorities = [p for p in priorities if p not in valid_priorities]
if invalid_priorities:
self.result.add_issue(ValidationIssue(
setting="RELEASE_DATE_PRIORITY",
severity=ValidationSeverity.ERROR,
message=f"Invalid release date priorities: {', '.join(invalid_priorities)}",
current_value=priority,
suggested_value="Use: digital, physical, theatrical"
))
if len(set(priorities)) != len(priorities):
self.result.add_issue(ValidationIssue(
setting="RELEASE_DATE_PRIORITY",
severity=ValidationSeverity.WARNING,
message="Duplicate priorities found",
current_value=priority
))
def _validate_performance_settings(self) -> None:
"""Validate performance-related settings"""
batch_delay = os.environ.get("BATCH_DELAY")
max_concurrent = os.environ.get("MAX_CONCURRENT_SERIES")
# Performance recommendations
if batch_delay:
try:
delay = float(batch_delay)
if delay < 1.0:
self.result.add_issue(ValidationIssue(
setting="BATCH_DELAY",
severity=ValidationSeverity.WARNING,
message="Very low batch delay may increase system load",
current_value=batch_delay,
suggested_value="Consider using 1.0 or higher for better stability"
))
except ValueError:
pass # Already caught in numeric validation
if max_concurrent:
try:
concurrent = int(max_concurrent)
if concurrent > 5:
self.result.add_issue(ValidationIssue(
setting="MAX_CONCURRENT_SERIES",
severity=ValidationSeverity.WARNING,
message="High concurrency may overload system resources",
current_value=max_concurrent,
suggested_value="Consider using 3-5 for optimal balance"
))
except ValueError:
pass # Already caught in numeric validation
def _validate_dependencies(self) -> None:
"""Validate cross-setting dependencies"""
# If database is configured, recommend using database over API
db_type = os.environ.get("RADARR_DB_TYPE")
radarr_url = os.environ.get("RADARR_URL")
if db_type and radarr_url:
self.result.add_issue(ValidationIssue(
setting="RADARR_DB_TYPE",
severity=ValidationSeverity.INFO,
message="Database connection preferred over API for better performance",
details={"recommendation": "Database access is faster and more reliable"}
))
# Check path mapping consistency
tv_paths = os.environ.get("TV_PATHS", "").split(",")
sonarr_paths = os.environ.get("SONARR_ROOT_FOLDERS", "").split(",")
if len([p for p in tv_paths if p.strip()]) != len([p for p in sonarr_paths if p.strip()]):
self.result.add_issue(ValidationIssue(
setting="TV_PATHS",
severity=ValidationSeverity.WARNING,
message="TV_PATHS and SONARR_ROOT_FOLDERS should have matching number of paths",
details={
"tv_paths_count": len([p for p in tv_paths if p.strip()]),
"sonarr_paths_count": len([p for p in sonarr_paths if p.strip()])
}
))
def validate_configuration() -> ValidationResult:
"""
Validate the complete NFOGuard configuration
Returns:
ValidationResult with all validation issues found
"""
validator = ConfigValidator()
return validator.validate_all()
def validate_configuration_and_raise() -> None:
"""
Validate configuration and raise ConfigurationError if invalid
Raises:
ConfigurationError: If configuration validation fails
"""
result = validate_configuration()
if not result.is_valid:
error_messages = []
for error in result.get_errors():
error_messages.append(f"{error.setting}: {error.message}")
raise ConfigurationError(
setting="configuration",
reason=f"Configuration validation failed with {result.errors_count} errors",
current_value={
"errors": error_messages,
"warnings_count": result.warnings_count,
"validation_details": result.to_dict()
}
)
def get_configuration_summary() -> Dict[str, Any]:
"""
Get a summary of current configuration status
Returns:
Dictionary with configuration summary
"""
result = validate_configuration()
return {
"is_valid": result.is_valid,
"errors_count": result.errors_count,
"warnings_count": result.warnings_count,
"total_issues": len(result.issues),
"critical_issues": [
issue.to_dict() for issue in result.issues
if issue.severity == ValidationSeverity.ERROR
],
"recommendations": [
issue.to_dict() for issue in result.issues
if issue.severity == ValidationSeverity.WARNING
]
}