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

#!/usr/bin/env python3


# Primitivus: a SAT frontend
# 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 libervia.backend.core.i18n import _, D_
from twisted.words.protocols.jabber import jid


class Const(object):

    PROF_KEY_NONE = "@NONE@"

    PROFILE = [
        "test_profile",
        "test_profile2",
        "test_profile3",
        "test_profile4",
        "test_profile5",
    ]
    JID_STR = [
        "test@example.org/SàT",
        "sender@example.net/house",
        "sender@example.net/work",
        "sender@server.net/res",
        "xxx@server.net/res",
    ]
    JID = [jid.JID(jid_s) for jid_s in JID_STR]

    PROFILE_DICT = {}
    for i in range(0, len(PROFILE)):
        PROFILE_DICT[PROFILE[i]] = JID[i]

    MUC_STR = ["room@chat.server.domain", "sat_game@chat.server.domain"]
    MUC = [jid.JID(jid_s) for jid_s in MUC_STR]

    NO_SECURITY_LIMIT = -1
    SECURITY_LIMIT = 0

    # To test frontend parameters
    APP_NAME = "dummy_frontend"
    COMPOSITION_KEY = D_("Composition")
    ENABLE_UNIBOX_PARAM = D_("Enable unibox")
    PARAM_IN_QUOTES = D_("'Wysiwyg' edition")