view libervia/cli/cmd_application.py @ 4309:b56b1eae7994

component email gateway: add multicasting: XEP-0033 multicasting is now supported both for incoming and outgoing messages. XEP-0033 metadata are converted to suitable Email headers and vice versa. Email address and JID are both supported, and delivery is done by the gateway when suitable on incoming messages. rel 450
author Goffi <goffi@goffi.org>
date Thu, 26 Sep 2024 16:12:01 +0200
parents 0d7bb4df2343
children
line wrap: on
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#!/usr/bin/env python3

# Libervia CLI
# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)

# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.

# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from . import base
from libervia.backend.core.i18n import _
from libervia.backend.tools.common import data_format
from libervia.cli.constants import Const as C

__commands__ = ["Application"]


class List(base.CommandBase):
    """List available applications"""

    def __init__(self, host):
        super(List, self).__init__(
            host,
            "list",
            use_profile=False,
            use_output=C.OUTPUT_LIST,
            help=_("list available applications"),
        )

    def add_parser_options(self):
        # FIXME: "extend" would be better here, but it's only available from Python 3.8+
        #   so we use "append" until minimum version of Python is raised.
        self.parser.add_argument(
            "-f",
            "--filter",
            dest="filters",
            action="append",
            choices=["available", "running"],
            help=_("show applications with this status"),
        )

    async def start(self):

        # FIXME: this is only needed because we can't use "extend" in
        #   add_parser_options, see note there
        if self.args.filters:
            self.args.filters = list(set(self.args.filters))
        else:
            self.args.filters = ["available"]

        try:
            found_apps = await self.host.bridge.applications_list(self.args.filters)
        except Exception as e:
            self.disp(f"can't get applications list: {e}", error=True)
            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
        else:
            await self.output(found_apps)
            self.host.quit()


class Start(base.CommandBase):
    """Start an application"""

    def __init__(self, host):
        super(Start, self).__init__(
            host, "start", use_profile=False, help=_("start an application")
        )

    def add_parser_options(self):
        self.parser.add_argument(
            "name",
            help=_("name of the application to start"),
        )

    async def start(self):
        try:
            await self.host.bridge.application_start(
                self.args.name,
                "",
            )
        except Exception as e:
            self.disp(f"can't start {self.args.name}: {e}", error=True)
            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
        else:
            self.host.quit()


class Stop(base.CommandBase):

    def __init__(self, host):
        super(Stop, self).__init__(
            host, "stop", use_profile=False, help=_("stop a running application")
        )

    def add_parser_options(self):
        id_group = self.parser.add_mutually_exclusive_group(required=True)
        id_group.add_argument(
            "name",
            nargs="?",
            help=_("name of the application to stop"),
        )
        id_group.add_argument(
            "-i",
            "--id",
            help=_("identifier of the instance to stop"),
        )

    async def start(self):
        try:
            if self.args.name is not None:
                args = [self.args.name, "name"]
            else:
                args = [self.args.id, "instance"]
            await self.host.bridge.application_stop(
                *args,
                "",
            )
        except Exception as e:
            if self.args.name is not None:
                self.disp(f"can't stop application {self.args.name!r}: {e}", error=True)
            else:
                self.disp(
                    f"can't stop application instance with id {self.args.id!r}: {e}",
                    error=True,
                )
            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
        else:
            self.host.quit()


class Exposed(base.CommandBase):

    def __init__(self, host):
        super(Exposed, self).__init__(
            host,
            "exposed",
            use_profile=False,
            use_output=C.OUTPUT_DICT,
            help=_("show data exposed by a running application"),
        )

    def add_parser_options(self):
        id_group = self.parser.add_mutually_exclusive_group(required=True)
        id_group.add_argument(
            "name",
            nargs="?",
            help=_("name of the application to check"),
        )
        id_group.add_argument(
            "-i",
            "--id",
            help=_("identifier of the instance to check"),
        )

    async def start(self):
        try:
            if self.args.name is not None:
                args = [self.args.name, "name"]
            else:
                args = [self.args.id, "instance"]
            exposed_data_raw = await self.host.bridge.application_exposed_get(
                *args,
                "",
            )
        except Exception as e:
            if self.args.name is not None:
                self.disp(
                    f"can't get values exposed from application {self.args.name!r}: {e}",
                    error=True,
                )
            else:
                self.disp(
                    f"can't values exposed from  application instance with id {self.args.id!r}: {e}",
                    error=True,
                )
            self.host.quit(C.EXIT_BRIDGE_ERRBACK)
        else:
            exposed_data = data_format.deserialise(exposed_data_raw)
            await self.output(exposed_data)
            self.host.quit()


class Application(base.CommandBase):
    subcommands = (List, Start, Stop, Exposed)

    def __init__(self, host):
        super(Application, self).__init__(
            host,
            "application",
            use_profile=False,
            help=_("manage applications"),
            aliases=["app"],
        )