def _detect_telemetry_version()

in mozetl/landfill/sampler.py [0:0]

• 16 lines of code
• 7 McCabe index (conditional complexity)

def _detect_telemetry_version(content_string):
    """Detect document version from the payload itself.
    Should match with the logic here:
    https://github.com/mozilla-services/lua_sandbox_extensions/blob/master/moz_telemetry/io_modules/decoders/moz_ingest/telemetry.lua#L162
    If the given content string is not parseable as JSON,
    default to a version of "0".
    """
    if content_string is None:
        return UNPARSEABLE_TELEMETRY_VERSION

    try:
        content = json.loads(content_string)
    except ValueError:
        return UNPARSEABLE_TELEMETRY_VERSION

    if "ver" in content:
        return str(content["ver"])
    if "version" in content:
        return str(content["version"])
    if "deviceinfo" in content:
        return "3"
    if "v" in content:
        return str(content["v"])
    return "1"