def freshclam_update()

in assets/lambda/code/scan/lambda.py [0:0]

• 29 lines of code
• 5 McCabe index (conditional complexity)

def freshclam_update(input_bucket, input_key, download_path, definitions_path):
    """Points freshclam to the local database files and the S3 Definitions bucket.
    Creates the database path on EFS if it does not already exist"""
    conf = "/tmp/freshclam.conf"
    # will already exist when Lambdas are running in same execution context
    if not os.path.exists(conf):
        with open(conf, "a") as f:
            f.write(f"\nPrivateMirror {os.environ['DEFS_URL']}")
    try:
        command = [
            "freshclam",
            f"--config-file={conf}",
            "--stdout",
            "-u",
            f"{pwd.getpwuid(os.getuid()).pw_name}",
            f"--datadir={definitions_path}",
        ]
        update_summary = subprocess.run(
            command,
            stderr=subprocess.STDOUT,
            stdout=subprocess.PIPE,
        )
        if update_summary.returncode != 0:
            raise ClamAVException(
                f"FreshClam exited with unexpected code: {update_summary.returncode}"
                f"\nOutput: {update_summary.stdout.decode('utf-8')}"
            )
    except subprocess.CalledProcessError as e:
        report_failure(input_bucket, input_key, download_path, str(e.stderr))
    except ClamAVException as e:
        report_failure(input_bucket, input_key, download_path, e.message)
    return