from owrx.property import PropertyLayer import importlib.util import os import logging logger = logging.getLogger(__name__) class ConfigNotFoundException(Exception): pass class ConfigError(object): def __init__(self, key, message): self.key = key self.message = message def __str__(self): return "Configuration Error (key: {0}): {1}".format(self.key, self.message) class Config: sharedConfig = None @staticmethod def _loadConfig(): pm = PropertyLayer() for file in ["/etc/openwebrx/config_webrx.py", "./config_webrx.py"]: try: spec = importlib.util.spec_from_file_location("config_webrx", file) cfg = importlib.util.module_from_spec(spec) spec.loader.exec_module(cfg) for name, value in cfg.__dict__.items(): if name.startswith("__"): continue pm[name] = value return pm except FileNotFoundError: pass raise ConfigNotFoundException("no usable config found! please make sure you have a valid configuration file!") @staticmethod def get(): if Config.sharedConfig is None: Config.sharedConfig = Config._loadConfig() return Config.sharedConfig @staticmethod def validateConfig(): pm = Config.get() errors = [ Config.checkTempDirectory(pm) ] return [e for e in errors if e is not None] @staticmethod def checkTempDirectory(pm: PropertyLayer): key = "temporary_directory" if key not in pm or pm[key] is None: return ConfigError(key, "temporary directory is not set") if not os.path.exists(pm[key]): return ConfigError(key, "temporary directory doesn't exist") if not os.path.isdir(pm[key]): return ConfigError(key, "temporary directory path is not a directory") if not os.access(pm[key], os.W_OK): return ConfigError(key, "temporary directory is not writable") return None