view libervia/backend/core/exceptions.py @ 4231:e11b13418ba6

plugin XEP-0353, XEP-0234, jingle: WebRTC data channel signaling implementation: Implement XEP-0343: Signaling WebRTC Data Channels in Jingle. The current version of the XEP (0.3.1) has no implementation and contains some flaws. After discussing this on xsf@, Daniel (from Conversations) mentioned that they had a sprint with Larma (from Dino) to work on another version and provided me with this link: https://gist.github.com/iNPUTmice/6c56f3e948cca517c5fb129016d99e74 . I have used it for my implementation. This implementation reuses work done on Jingle A/V call (notably XEP-0176 and XEP-0167 plugins), with adaptations. When used, XEP-0234 will not handle the file itself as it normally does. This is because WebRTC has several implementations (browser for web interface, GStreamer for others), and file/data must be handled directly by the frontend. This is particularly important for web frontends, as the file is not sent from the backend but from the end-user's browser device. Among the changes, there are: - XEP-0343 implementation. - `file_send` bridge method now use serialised dict as output. - New `BaseTransportHandler.is_usable` method which get content data and returns a boolean (default to `True`) to tell if this transport can actually be used in this context (when we are initiator). Used in webRTC case to see if call data are available. - Support of `application` media type, and everything necessary to handle data channels. - Better confirmation message, with file name, size and description when available. - When file is accepted in preflight, it is specified in following `action_new` signal for actual file transfer. This way, frontend can avoid the display or 2 confirmation messages. - XEP-0166: when not specified, default `content` name is now its index number instead of a UUID. This follows the behaviour of browsers. - XEP-0353: better handling of events such as call taken by another device. - various other updates. rel 441
author Goffi <goffi@goffi.org>
date Sat, 06 Apr 2024 12:57:23 +0200
parents 4b842c1fb686
children 0d7bb4df2343
line wrap: on
line source

#!/usr/bin/env python3


# SàT Exceptions
# Copyright (C) 2011  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/>.


class ProfileUnknownError(Exception):
    pass


class ProfileNotInCacheError(Exception):
    pass


class ProfileNotSetError(Exception):
    """This error raises when no profile has been set (value @NONE@ is found, but it should have been replaced)"""


class ProfileConnected(Exception):
    """This error is raised when trying to delete a connected profile."""


class ProfileNotConnected(Exception):
    pass


class ProfileKeyUnknown(Exception):
    pass


class ClientTypeError(Exception):
    """This code is not allowed for this type of client (i.e. component or not)"""


class UnknownEntityError(Exception):
    pass


class UnknownGroupError(Exception):
    pass


class MissingModule(Exception):
    # Used to indicate when a plugin dependence is not found
    # it's nice to indicate when to find the dependence in argument string
    pass


class MissingPlugin(Exception):
    """A SàT plugin needed for a feature/method is missing"""
    pass


class NotFound(Exception):
    pass


class ConfigError(Exception):
    pass


class DataError(Exception):
    pass


class ExternalRequestError(Exception):
    """Request to third party server failed"""


class ConflictError(Exception):
    pass


class TimeOutError(Exception):
    pass


class CancelError(Exception):
    pass


class InternalError(Exception):
    pass


class FeatureNotFound(
    Exception
):  # a disco feature/identity which is needed is not present
    pass


class BridgeInitError(Exception):
    pass


class BridgeExceptionNoService(Exception):
    pass


class DatabaseError(Exception):
    pass


class PasswordError(Exception):
    pass


class PermissionError(Exception):
    pass


class ParsingError(ValueError):
    pass


class EncryptionError(Exception):
    """Invalid encryption"""
    pass


# Something which need to be done is not available yet
class NotReady(Exception):
    pass


class NetworkError(Exception):
    """Something is wrong with a request (e.g. HTTP(S))"""


class InvalidCertificate(Exception):
    """A TLS certificate is not valid"""
    pass


class CommandException(RuntimeError):
    """An external command failed

    stdout and stderr will be attached to the Exception
    """

    def __init__(self, msg, stdout, stderr):
        super(CommandException, self).__init__(msg)
        self.stdout = stdout
        self.stderr = stderr