view sat/stdui/ui_profile_manager.py @ 3652:6e34307319c0

plugin XEP-0353: fix jingle initiation on disco "Service Unavailable" error: When requesting disco info on a bare jid which is not in our roster, server may return "Service Unavailable" (to avoid leaking valid JIDs). In this case, the initiation was failing, this is now fixed by using empty categories in this case.
author Goffi <goffi@goffi.org>
date Wed, 08 Sep 2021 11:16:52 +0200
parents be6d91572633
children 524856bd7b19
line wrap: on
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#!/usr/bin/env python3


# SAT standard user interface for managing contacts
# Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
# Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.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 sat.core.i18n import D_
from sat.core.constants import Const as C
from sat.core.log import getLogger
from sat.core import exceptions
from sat.tools import xml_tools
from sat.memory.memory import ProfileSessions
from twisted.internet import defer
from twisted.words.protocols.jabber import jid


log = getLogger(__name__)


class ProfileManager(object):
    """Manage profiles."""

    def __init__(self, host):
        self.host = host
        self.profile_ciphers = {}
        self._sessions = ProfileSessions()
        host.registerCallback(
            self._authenticateProfile, force_id=C.AUTHENTICATE_PROFILE_ID, with_data=True
        )
        host.registerCallback(
            self._changeXMPPPassword, force_id=C.CHANGE_XMPP_PASSWD_ID, with_data=True
        )
        self.__new_xmpp_passwd_id = host.registerCallback(
            self._changeXMPPPasswordCb, with_data=True
        )

    def _startSessionEb(self, fail, first, profile):
        """Errback method for startSession during profile authentication

        @param first(bool): if True, this is the first try and we have tryied empty password
            in this case we ask for a password to the user.
        @param profile(unicode, None): %(doc_profile)s
            must only be used if first is True
        """
        if first:
            # first call, we ask for the password
            form_ui = xml_tools.XMLUI(
                "form", title=D_("Profile password for {}").format(profile), submit_id=""
            )
            form_ui.addPassword("profile_password", value="")
            d = xml_tools.deferredUI(self.host, form_ui, chained=True)
            d.addCallback(self._authenticateProfile, profile)
            return {"xmlui": form_ui.toXml()}

        assert profile is None

        if fail.check(exceptions.PasswordError):
            dialog = xml_tools.XMLUI("popup", title=D_("Connection error"))
            dialog.addText(D_("The provided profile password doesn't match."))
        else:
            log.error("Unexpected exceptions: {}".format(fail))
            dialog = xml_tools.XMLUI("popup", title=D_("Internal error"))
            dialog.addText(D_("Internal error: {}".format(fail)))
        return {"xmlui": dialog.toXml(), "validated": C.BOOL_FALSE}

    def _authenticateProfile(self, data, profile):
        if C.bool(data.get("cancelled", "false")):
            return {}
        if self.host.memory.isSessionStarted(profile):
            return {"validated": C.BOOL_TRUE}
        try:
            password = data[xml_tools.formEscape("profile_password")]
        except KeyError:
            # first request, we try empty password
            password = ""
            first = True
            eb_profile = profile
        else:
            first = False
            eb_profile = None
        d = self.host.memory.startSession(password, profile)
        d.addCallback(lambda __: {"validated": C.BOOL_TRUE})
        d.addErrback(self._startSessionEb, first, eb_profile)
        return d

    def _changeXMPPPassword(self, data, profile):
        session_data = self._sessions.profileGetUnique(profile)
        if not session_data:
            server = self.host.memory.getParamA(
                C.FORCE_SERVER_PARAM, "Connection", profile_key=profile
            )
            if not server:
                server = jid.parse(
                    self.host.memory.getParamA(
                        "JabberID", "Connection", profile_key=profile
                    )
                )[1]
            session_id, session_data = self._sessions.newSession(
                {"count": 0, "server": server}, profile=profile
            )
        if (
            session_data["count"] > 2
        ):  # 3 attempts with a new password after the initial try
            self._sessions.profileDelUnique(profile)
            _dialog = xml_tools.XMLUI("popup", title=D_("Connection error"))
            _dialog.addText(
                D_("Can't connect to %s. Please check your connection details.")
                % session_data["server"]
            )
            return {"xmlui": _dialog.toXml()}
        session_data["count"] += 1
        counter = " (%d)" % session_data["count"] if session_data["count"] > 1 else ""
        title = D_("XMPP password for %(profile)s%(counter)s") % {
            "profile": profile,
            "counter": counter,
        }
        form_ui = xml_tools.XMLUI(
            "form", title=title, submit_id=self.__new_xmpp_passwd_id
        )
        form_ui.addText(
            D_(
                "Can't connect to %s. Please check your connection details or try with another password."
            )
            % session_data["server"]
        )
        form_ui.addPassword("xmpp_password", value="")
        return {"xmlui": form_ui.toXml()}

    def _changeXMPPPasswordCb(self, data, profile):
        xmpp_password = data[xml_tools.formEscape("xmpp_password")]
        d = self.host.memory.setParam(
            "Password", xmpp_password, "Connection", profile_key=profile
        )
        d.addCallback(lambda __: defer.ensureDeferred(self.host.connect(profile)))
        d.addCallback(lambda __: {})
        d.addErrback(lambda __: self._changeXMPPPassword({}, profile))
        return d