frostfs-testcases/robot/resources/lib/python_keywords/container.py

#!/usr/bin/python3.9

"""
    This module contains keywords that utilize `neofs-cli container` commands.
"""

import json
from time import sleep
from typing import Optional, Union

import json_transformers
from cli import NeofsCli
from common import NEOFS_ENDPOINT, WALLET_CONFIG
from robot.api import logger
from robot.api.deco import keyword

ROBOT_AUTO_KEYWORDS = False
DEFAULT_PLACEMENT_RULE = "REP 2 IN X CBF 1 SELECT 4 FROM * AS X"


@keyword('Create Container')
def create_container(wallet: str, rule: str = DEFAULT_PLACEMENT_RULE, basic_acl: str = '',
                     attributes: Optional[dict] = None, session_token: str = '',
                     session_wallet: str = '', name: str = None, options: dict = None,
                     await_mode: bool = True, wait_for_creation: bool = True) -> str:
    """
        A wrapper for `neofs-cli container create` call.

        Args:
            wallet (str): a wallet on whose behalf a container is created
            rule (optional, str): placement rule for container
            basic_acl (optional, str): an ACL for container, will be
                                appended to `--basic-acl` key
            attributes (optional, dict): container attributes , will be
                                appended to `--attributes` key
            session_token (optional, str): a path to session token file
            session_wallet(optional, str): a path to the wallet which signed
                                the session token; this parameter makes sense
                                when paired with `session_token`
            options (optional, dict): any other options to pass to the call
            name (optional, str): container name attribute
            await_mode (bool): block execution until container is persisted
            wait_for_creation (): Wait for container shows in container list

        Returns:
            (str): CID of the created container
    """

    cli = NeofsCli(config=WALLET_CONFIG, timeout=60)
    output = cli.container.create(rpc_endpoint=NEOFS_ENDPOINT, wallet=session_wallet if session_wallet else wallet,
                                  policy=rule, basic_acl=basic_acl, attributes=attributes, name=name,
                                  session=session_token, await_mode=await_mode, **options or {})

    cid = _parse_cid(output)

    logger.info("Container created; waiting until it is persisted in the sidechain")

    if wait_for_creation:
        wait_for_container_creation(wallet, cid)

    return cid


def wait_for_container_creation(wallet: str, cid: str, attempts: int = 15, sleep_interval: int = 1):
    for _ in range(attempts):
        containers = list_containers(wallet)
        if cid in containers:
            return
        logger.info(f"There is no {cid} in {containers} yet; sleep {sleep_interval} and continue")
        sleep(sleep_interval)
    raise RuntimeError(f"After {attempts * sleep_interval} seconds container {cid} hasn't been persisted; exiting")


def wait_for_container_deletion(wallet: str, cid: str, attempts: int = 30, sleep_interval: int = 1):
    for _ in range(attempts):
        try:
            get_container(wallet, cid)
            sleep(sleep_interval)
            continue
        except Exception as err:
            if 'container not found' not in str(err):
                raise AssertionError(f'Expected "container not found" in error, got\n{err}')
            return
    raise AssertionError(f'Expected container deleted during {attempts * sleep_interval} sec.')


@keyword('List Containers')
def list_containers(wallet: str) -> list[str]:
    """
        A wrapper for `neofs-cli container list` call. It returns all the
        available containers for the given wallet.
        Args:
            wallet (str): a wallet on whose behalf we list the containers
        Returns:
            (list): list of containers
    """
    cli = NeofsCli(config=WALLET_CONFIG)
    output = cli.container.list(rpc_endpoint=NEOFS_ENDPOINT, wallet=wallet)
    logger.info(f"Containers: \n{output}")
    return output.split()


@keyword('Get Container')
def get_container(wallet: str, cid: str, json_mode: bool = True) -> Union[dict, str]:
    """
        A wrapper for `neofs-cli container get` call. It extracts container's
        attributes and rearranges them into a more compact view.
        Args:
            wallet (str): path to a wallet on whose behalf we get the container
            cid (str): ID of the container to get
            json_mode (bool): return container in JSON format
        Returns:
            (dict, str): dict of container attributes
    """
    cli = NeofsCli(config=WALLET_CONFIG)
    output = cli.container.get(rpc_endpoint=NEOFS_ENDPOINT, wallet=wallet, cid=cid, json_mode=json_mode)

    if not json_mode:
        return output

    container_info = json.loads(output)
    attributes = dict()
    for attr in container_info['attributes']:
        attributes[attr['key']] = attr['value']
    container_info['attributes'] = attributes
    container_info['ownerID'] = json_transformers.json_reencode(container_info['ownerID']['value'])
    return container_info


@keyword('Delete Container')
# TODO: make the error message about a non-found container more user-friendly
# https://github.com/nspcc-dev/neofs-contract/issues/121
def delete_container(wallet: str, cid: str) -> None:
    """
        A wrapper for `neofs-cli container delete` call.
        Args:
            wallet (str): path to a wallet on whose behalf we delete the container
            cid (str): ID of the container to delete
        This function doesn't return anything.
    """

    cli = NeofsCli(config=WALLET_CONFIG)
    cli.container.delete(wallet=wallet, cid=cid, rpc_endpoint=NEOFS_ENDPOINT)


def _parse_cid(output: str) -> str:
    """
    Parses container ID from a given CLI output. The input string we expect:
            container ID: 2tz86kVTDpJxWHrhw3h6PbKMwkLtBEwoqhHQCKTre1FN
            awaiting...
            container has been persisted on sidechain
    We want to take 'container ID' value from the string.

    Args:
        output (str): CLI output to parse

    Returns:
        (str): extracted CID
    """
    try:
        # taking first line from command's output
        first_line = output.split('\n')[0]
    except Exception:
        logger.error(f"Got empty output: {output}")
    splitted = first_line.split(": ")
    if len(splitted) != 2:
        raise ValueError(f"no CID was parsed from command output: \t{first_line}")
    return splitted[1]