python-kasa/devtools/dump_devinfo.py

"""This script generates devinfo files for the test suite.

If you have new, yet unsupported device or a device with no devinfo file under
 kasa/tests/fixtures, feel free to run this script and create a PR to add the file
 to the repository.

Executing this script will several modules and methods one by one,
and finally execute a query to query all of them at once.
"""

from __future__ import annotations

import base64
import collections.abc
import json
import logging
import re
import sys
import traceback
from collections import defaultdict, namedtuple
from pathlib import Path
from pprint import pprint

import asyncclick as click

from devtools.helpers.smartrequests import SmartRequest, get_component_requests
from kasa import (
    AuthenticationError,
    Credentials,
    Device,
    Discover,
    KasaException,
    TimeoutError,
)
from kasa.discover import DiscoveryResult
from kasa.exceptions import SmartErrorCode
from kasa.smart import SmartDevice
from kasa.smartprotocol import _ChildProtocolWrapper

Call = namedtuple("Call", "module method")
SmartCall = namedtuple("SmartCall", "module request should_succeed child_device_id")
FixtureResult = namedtuple("FixtureResult", "filename, folder, data")

SMART_FOLDER = "kasa/tests/fixtures/smart/"
SMART_CHILD_FOLDER = "kasa/tests/fixtures/smart/child/"
IOT_FOLDER = "kasa/tests/fixtures/"

_LOGGER = logging.getLogger(__name__)


def scrub(res):
    """Remove identifiers from the given dict."""
    keys_to_scrub = [
        "deviceId",
        "fwId",
        "hwId",
        "oemId",
        "mac",
        "mic_mac",
        "latitude_i",
        "longitude_i",
        "latitude",
        "longitude",
        "la",  # lat on ks240
        "lo",  # lon on ks240
        "owner",
        "device_id",
        "ip",
        "ssid",
        "hw_id",
        "fw_id",
        "oem_id",
        "nickname",
        "alias",
        "bssid",
        "channel",
        "original_device_id",  # for child devices on strips
        "parent_device_id",  # for hub children
        "setup_code",  # matter
        "setup_payload",  # matter
        "mfi_setup_code",  # mfi_ for homekit
        "mfi_setup_id",
        "mfi_token_token",
        "mfi_token_uuid",
    ]

    for k, v in res.items():
        if isinstance(v, collections.abc.Mapping):
            res[k] = scrub(res.get(k))
        elif (
            isinstance(v, list)
            and len(v) > 0
            and isinstance(v[0], collections.abc.Mapping)
        ):
            res[k] = [scrub(vi) for vi in v]
        else:
            if k in keys_to_scrub:
                if k in ["mac", "mic_mac"]:
                    # Some macs have : or - as a separator and others do not
                    if len(v) == 12:
                        v = f"{v[:6]}000000"
                    else:
                        delim = ":" if ":" in v else "-"
                        rest = delim.join(
                            format(s, "02x") for s in bytes.fromhex("000000")
                        )
                        v = f"{v[:8]}{delim}{rest}"
                elif k in ["latitude", "latitude_i", "longitude", "longitude_i"]:
                    v = 0
                elif k in ["ip"]:
                    v = "127.0.0.123"
                elif k in ["ssid"]:
                    # Need a valid base64 value here
                    v = base64.b64encode(b"#MASKED_SSID#").decode()
                elif k in ["nickname"]:
                    v = base64.b64encode(b"#MASKED_NAME#").decode()
                elif k in ["alias"]:
                    v = "#MASKED_NAME#"
                elif isinstance(res[k], int):
                    v = 0
                elif k == "device_id" and "SCRUBBED" in v:
                    pass  # already scrubbed
                elif k == "device_id" and len(v) > 40:
                    # retain the last two chars when scrubbing child ids
                    end = v[-2:]
                    v = re.sub(r"\w", "0", v)
                    v = v[:40] + end
                else:
                    v = re.sub(r"\w", "0", v)

            res[k] = v
    return res


def default_to_regular(d):
    """Convert nested defaultdicts to regular ones.

    From https://stackoverflow.com/a/26496899
    """
    if isinstance(d, defaultdict):
        d = {k: default_to_regular(v) for k, v in d.items()}
    return d


async def handle_device(basedir, autosave, device: Device, batch_size: int):
    """Create a fixture for a single device instance."""
    if isinstance(device, SmartDevice):
        fixture_results: list[FixtureResult] = await get_smart_fixtures(
            device, batch_size
        )
    else:
        fixture_results = [await get_legacy_fixture(device)]

    for fixture_result in fixture_results:
        save_filename = Path(basedir) / fixture_result.folder / fixture_result.filename

        pprint(scrub(fixture_result.data))
        if autosave:
            save = "y"
        else:
            save = click.prompt(
                f"Do you want to save the above content to {save_filename} (y/n)"
            )
        if save == "y":
            click.echo(f"Saving info to {save_filename}")

            with save_filename.open("w") as f:
                json.dump(fixture_result.data, f, sort_keys=True, indent=4)
                f.write("\n")
        else:
            click.echo("Not saving.")


@click.command()
@click.option("--host", required=False, help="Target host.")
@click.option(
    "--target",
    required=False,
    default="255.255.255.255",
    help="Target network for discovery.",
)
@click.option(
    "--username",
    default="",
    required=False,
    envvar="KASA_USERNAME",
    help="Username/email address to authenticate to device.",
)
@click.option(
    "--password",
    default="",
    required=False,
    envvar="KASA_PASSWORD",
    help="Password to use to authenticate to device.",
)
@click.option("--basedir", help="Base directory for the git repository", default=".")
@click.option("--autosave", is_flag=True, default=False, help="Save without prompting")
@click.option(
    "--batch-size", default=5, help="Number of batched requests to send at once"
)
@click.option("-d", "--debug", is_flag=True)
@click.option(
    "-di",
    "--discovery-info",
    help=(
        "Bypass discovery by passing an accurate discovery result json escaped string."
        + " Do not use this flag unless you are sure you know what it means."
    ),
)
@click.option("--port", help="Port override", type=int)
async def cli(
    host,
    target,
    basedir,
    autosave,
    debug,
    username,
    password,
    batch_size,
    discovery_info,
    port,
):
    """Generate devinfo files for devices.

    Use --host (for a single device) or --target (for a complete network).
    """
    if debug:
        logging.basicConfig(level=logging.DEBUG)

    credentials = Credentials(username=username, password=password)
    if host is not None:
        if discovery_info:
            click.echo("Host and discovery info given, trying connect on %s." % host)
            from kasa import DeviceConfig, DeviceConnectionParameters

            di = json.loads(discovery_info)
            dr = DiscoveryResult(**di)
            connection_type = DeviceConnectionParameters.from_values(
                dr.device_type,
                dr.mgt_encrypt_schm.encrypt_type,
                dr.mgt_encrypt_schm.lv,
            )
            dc = DeviceConfig(
                host=host,
                connection_type=connection_type,
                port_override=port,
                credentials=credentials,
            )
            device = await Device.connect(config=dc)
            device.update_from_discover_info(dr.get_dict())
        else:
            click.echo("Host given, performing discovery on %s." % host)
            device = await Discover.discover_single(
                host, credentials=credentials, port=port
            )
        await handle_device(basedir, autosave, device, batch_size)
    else:
        click.echo(
            "No --host given, performing discovery on %s. Use --target to override."
            % target
        )
        devices = await Discover.discover(target=target, credentials=credentials)
        click.echo("Detected %s devices" % len(devices))
        for dev in devices.values():
            await handle_device(basedir, autosave, dev, batch_size)


async def get_legacy_fixture(device):
    """Get fixture for legacy IOT style protocol."""
    items = [
        Call(module="system", method="get_sysinfo"),
        Call(module="emeter", method="get_realtime"),
        Call(module="smartlife.iot.dimmer", method="get_dimmer_parameters"),
        Call(module="smartlife.iot.common.emeter", method="get_realtime"),
        Call(
            module="smartlife.iot.smartbulb.lightingservice", method="get_light_state"
        ),
        Call(module="smartlife.iot.LAS", method="get_config"),
        Call(module="smartlife.iot.PIR", method="get_config"),
    ]

    successes = []

    for test_call in items:
        try:
            click.echo(f"Testing {test_call}..", nl=False)
            info = await device.protocol.query(
                {test_call.module: {test_call.method: None}}
            )
            resp = info[test_call.module]
        except Exception as ex:
            click.echo(click.style(f"FAIL {ex}", fg="red"))
        else:
            if "err_msg" in resp:
                click.echo(click.style(f"FAIL {resp['err_msg']}", fg="red"))
            else:
                click.echo(click.style("OK", fg="green"))
                successes.append((test_call, info))
        finally:
            await device.protocol.close()

    final_query = defaultdict(defaultdict)
    final = defaultdict(defaultdict)
    for succ, resp in successes:
        final_query[succ.module][succ.method] = None
        final[succ.module][succ.method] = resp

    final = default_to_regular(final)

    try:
        final = await device.protocol.query(final_query)
    except Exception as ex:
        _echo_error(f"Unable to query all successes at once: {ex}", bold=True, fg="red")
    finally:
        await device.protocol.close()
    if device._discovery_info and not device._discovery_info.get("system"):
        # Need to recreate a DiscoverResult here because we don't want the aliases
        # in the fixture, we want the actual field names as returned by the device.
        dr = DiscoveryResult(**device._discovery_info)
        final["discovery_result"] = dr.dict(
            by_alias=False, exclude_unset=True, exclude_none=True, exclude_defaults=True
        )

    click.echo("Got %s successes" % len(successes))
    click.echo(click.style("## device info file ##", bold=True))

    sysinfo = final["system"]["get_sysinfo"]
    model = sysinfo["model"]
    hw_version = sysinfo["hw_ver"]
    sw_version = sysinfo["sw_ver"]
    sw_version = sw_version.split(" ", maxsplit=1)[0]
    save_filename = f"{model}_{hw_version}_{sw_version}.json"
    copy_folder = IOT_FOLDER
    return FixtureResult(filename=save_filename, folder=copy_folder, data=final)


def _echo_error(msg: str):
    click.echo(
        click.style(
            msg,
            bold=True,
            fg="red",
        )
    )


def format_exception(e):
    """Print full exception stack as if it hadn't been caught.

    https://stackoverflow.com/a/12539332
    """
    exception_list = traceback.format_stack()
    exception_list = exception_list[:-2]
    exception_list.extend(traceback.format_tb(sys.exc_info()[2]))
    exception_list.extend(
        traceback.format_exception_only(sys.exc_info()[0], sys.exc_info()[1])
    )

    exception_str = "Traceback (most recent call last):\n"
    exception_str += "".join(exception_list)
    # Removing the last \n
    exception_str = exception_str[:-1]

    return exception_str


async def _make_requests_or_exit(
    device: SmartDevice,
    requests: list[SmartRequest],
    name: str,
    batch_size: int,
    *,
    child_device_id: str,
) -> dict[str, dict]:
    final = {}
    protocol = (
        device.protocol
        if child_device_id == ""
        else _ChildProtocolWrapper(child_device_id, device.protocol)
    )
    try:
        end = len(requests)
        step = batch_size  # Break the requests down as there seems to be a size limit
        for i in range(0, end, step):
            x = i
            requests_step = requests[x : x + step]
            request: list[SmartRequest] | SmartRequest = (
                requests_step[0] if len(requests_step) == 1 else requests_step
            )
            responses = await protocol.query(SmartRequest._create_request_dict(request))
            for method, result in responses.items():
                final[method] = result
        return final
    except AuthenticationError as ex:
        _echo_error(
            f"Unable to query the device due to an authentication error: {ex}",
        )
        exit(1)
    except KasaException as ex:
        _echo_error(
            f"Unable to query {name} at once: {ex}",
        )
        if isinstance(ex, TimeoutError):
            _echo_error(
                "Timeout, try reducing the batch size via --batch-size option.",
            )
        exit(1)
    except Exception as ex:
        _echo_error(
            f"Unexpected exception querying {name} at once: {ex}",
        )
        if _LOGGER.isEnabledFor(logging.DEBUG):
            _echo_error(format_exception(ex))
        exit(1)
    finally:
        await device.protocol.close()


async def get_smart_test_calls(device: SmartDevice):
    """Get the list of test calls to make."""
    test_calls = []
    successes = []
    child_device_components = {}

    extra_test_calls = [
        SmartCall(
            module="temp_humidity_records",
            request=SmartRequest.get_raw_request("get_temp_humidity_records"),
            should_succeed=False,
            child_device_id="",
        ),
        SmartCall(
            module="trigger_logs",
            request=SmartRequest.get_raw_request(
                "get_trigger_logs", SmartRequest.GetTriggerLogsParams()
            ),
            should_succeed=False,
            child_device_id="",
        ),
    ]

    click.echo("Testing component_nego call ..", nl=False)
    responses = await _make_requests_or_exit(
        device,
        [SmartRequest.component_nego()],
        "component_nego call",
        batch_size=1,
        child_device_id="",
    )
    component_info_response = responses["component_nego"]
    click.echo(click.style("OK", fg="green"))
    successes.append(
        SmartCall(
            module="component_nego",
            request=SmartRequest("component_nego"),
            should_succeed=True,
            child_device_id="",
        )
    )
    components = {
        item["id"]: item["ver_code"]
        for item in component_info_response["component_list"]
    }

    if "child_device" in components:
        child_components = await _make_requests_or_exit(
            device,
            [SmartRequest.get_child_device_component_list()],
            "child device component list",
            batch_size=1,
            child_device_id="",
        )
        successes.append(
            SmartCall(
                module="child_component_list",
                request=SmartRequest.get_child_device_component_list(),
                should_succeed=True,
                child_device_id="",
            )
        )
        test_calls.append(
            SmartCall(
                module="child_device_list",
                request=SmartRequest.get_child_device_list(),
                should_succeed=True,
                child_device_id="",
            )
        )
        # Get list of child components to call
        if "control_child" in components:
            child_device_components = {
                child_component_list["device_id"]: {
                    item["id"]: item["ver_code"]
                    for item in child_component_list["component_list"]
                }
                for child_component_list in child_components[
                    "get_child_device_component_list"
                ]["child_component_list"]
            }

    # Get component calls
    for component_id, ver_code in components.items():
        if component_id == "child_device":
            continue
        if (requests := get_component_requests(component_id, ver_code)) is not None:
            component_test_calls = [
                SmartCall(
                    module=component_id,
                    request=request,
                    should_succeed=True,
                    child_device_id="",
                )
                for request in requests
            ]
            test_calls.extend(component_test_calls)
        else:
            click.echo(f"Skipping {component_id}..", nl=False)
            click.echo(click.style("UNSUPPORTED", fg="yellow"))

    test_calls.extend(extra_test_calls)

    # Child component calls
    for child_device_id, child_components in child_device_components.items():
        test_calls.append(
            SmartCall(
                module="component_nego",
                request=SmartRequest("component_nego"),
                should_succeed=True,
                child_device_id=child_device_id,
            )
        )
        for component_id, ver_code in child_components.items():
            if (requests := get_component_requests(component_id, ver_code)) is not None:
                component_test_calls = [
                    SmartCall(
                        module=component_id,
                        request=request,
                        should_succeed=True,
                        child_device_id=child_device_id,
                    )
                    for request in requests
                ]
                test_calls.extend(component_test_calls)
            else:
                click.echo(f"Skipping {component_id}..", nl=False)
                click.echo(click.style("UNSUPPORTED", fg="yellow"))
        # Add the extra calls for each child
        for extra_call in extra_test_calls:
            extra_child_call = extra_call._replace(child_device_id=child_device_id)
            test_calls.append(extra_child_call)

    return test_calls, successes


def get_smart_child_fixture(response):
    """Get a seperate fixture for the child device."""
    info = response["get_device_info"]
    hw_version = info["hw_ver"]
    sw_version = info["fw_ver"]
    sw_version = sw_version.split(" ", maxsplit=1)[0]
    model = info["model"]
    if region := info.get("specs"):
        model += f"({region})"

    save_filename = f"{model}_{hw_version}_{sw_version}.json"
    return FixtureResult(
        filename=save_filename, folder=SMART_CHILD_FOLDER, data=response
    )


async def get_smart_fixtures(device: SmartDevice, batch_size: int):
    """Get fixture for new TAPO style protocol."""
    test_calls, successes = await get_smart_test_calls(device)

    for test_call in test_calls:
        click.echo(f"Testing  {test_call.module}..", nl=False)
        try:
            click.echo(f"Testing {test_call}..", nl=False)
            if test_call.child_device_id == "":
                response = await device.protocol.query(
                    SmartRequest._create_request_dict(test_call.request)
                )
            else:
                cp = _ChildProtocolWrapper(test_call.child_device_id, device.protocol)
                response = await cp.query(
                    SmartRequest._create_request_dict(test_call.request)
                )
        except AuthenticationError as ex:
            _echo_error(
                f"Unable to query the device due to an authentication error: {ex}",
            )
            exit(1)
        except Exception as ex:
            if (
                not test_call.should_succeed
                and hasattr(ex, "error_code")
                and ex.error_code
                in [
                    SmartErrorCode.UNKNOWN_METHOD_ERROR,
                    SmartErrorCode.TRANSPORT_NOT_AVAILABLE_ERROR,
                    SmartErrorCode.UNSPECIFIC_ERROR,
                ]
            ):
                click.echo(click.style("FAIL - EXPECTED", fg="green"))
            else:
                click.echo(click.style(f"FAIL {ex}", fg="red"))
        else:
            if not response:
                click.echo(click.style("FAIL no response", fg="red"))
            else:
                if not test_call.should_succeed:
                    click.echo(click.style("OK - EXPECTED FAIL", fg="red"))
                else:
                    click.echo(click.style("OK", fg="green"))
                successes.append(test_call)
        finally:
            await device.protocol.close()

    device_requests: dict[str, list[SmartRequest]] = {}
    for success in successes:
        device_request = device_requests.setdefault(success.child_device_id, [])
        device_request.append(success.request)

    scrubbed_device_ids = {
        device_id: f"SCRUBBED_CHILD_DEVICE_ID_{index}"
        for index, device_id in enumerate(device_requests.keys())
        if device_id != ""
    }

    final = await _make_requests_or_exit(
        device,
        device_requests[""],
        "all successes at once",
        batch_size,
        child_device_id="",
    )
    fixture_results = []
    for child_device_id, requests in device_requests.items():
        if child_device_id == "":
            continue
        response = await _make_requests_or_exit(
            device,
            requests,
            "all child successes at once",
            batch_size,
            child_device_id=child_device_id,
        )
        scrubbed = scrubbed_device_ids[child_device_id]
        if "get_device_info" in response and "device_id" in response["get_device_info"]:
            response["get_device_info"]["device_id"] = scrubbed
        # If the child is a different model to the parent create a seperate fixture
        if (
            "component_nego" in response
            and "get_device_info" in response
            and (child_model := response["get_device_info"].get("model"))
            and child_model != final["get_device_info"]["model"]
        ):
            fixture_results.append(get_smart_child_fixture(response))
        else:
            cd = final.setdefault("child_devices", {})
            cd[scrubbed] = response

    # Scrub the device ids in the parent
    if gc := final.get("get_child_device_component_list"):
        for child in gc["child_component_list"]:
            device_id = child["device_id"]
            child["device_id"] = scrubbed_device_ids[device_id]
        for child in final["get_child_device_list"]["child_device_list"]:
            device_id = child["device_id"]
            child["device_id"] = scrubbed_device_ids[device_id]

    # Need to recreate a DiscoverResult here because we don't want the aliases
    # in the fixture, we want the actual field names as returned by the device.
    dr = DiscoveryResult(**device._discovery_info)  # type: ignore
    final["discovery_result"] = dr.dict(
        by_alias=False, exclude_unset=True, exclude_none=True, exclude_defaults=True
    )

    click.echo("Got %s successes" % len(successes))
    click.echo(click.style("## device info file ##", bold=True))

    hw_version = final["get_device_info"]["hw_ver"]
    sw_version = final["get_device_info"]["fw_ver"]
    model = final["discovery_result"]["device_model"]
    sw_version = sw_version.split(" ", maxsplit=1)[0]

    save_filename = f"{model}_{hw_version}_{sw_version}.json"
    copy_folder = SMART_FOLDER
    fixture_results.insert(
        0, FixtureResult(filename=save_filename, folder=copy_folder, data=final)
    )
    return fixture_results


if __name__ == "__main__":
    cli()