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import re
from logger_config import get_logger
def get_csf_config_value(
var_name: str, config_file="/etc/csf/csf.conf"
) -> str | None:
logger = get_logger()
try:
with open(config_file, "r") as f:
for line in f:
# Strip whitespace and skip empty lines and comments
line = line.strip()
if not line or line.startswith("#"):
continue
# Match pattern: VAR_NAME = "value" (with flexible whitespace)
# This regex handles:
# - Optional whitespace around = (e.g. VAR_NAME="value" or VAR_NAME= "value")
# - Quoted values (double quotes, single quotes are not valid in CSF config)
# - Captures the value inside quotes (e.g. "value")
pattern = rf'^{re.escape(var_name)}\s*=\s*["]([^"]*)["]'
match = re.match(pattern, line)
if match:
return match.group(1)
# Variable not found
return None
except FileNotFoundError:
logger.error(f"Config file {config_file} not found")
return None
except PermissionError:
logger.error(f"Permission denied reading {config_file}")
return None
except Exception as e:
logger.error(f"Error reading config file: {e}")
return None