view sat/stdui/ui_profile_manager.py @ 3317:83f25da66bec

core (memory): files are now public by default except for those in root directory: using public permissions by default makes permissions change more easy as we don't have to recursively change all permissions of sub files when changing directory. Root directories are private by default.
author Goffi <goffi@goffi.org>
date Sat, 01 Aug 2020 16:02:41 +0200
parents 559a625a236b
children be6d91572633
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#!/usr/bin/env python3


# SAT standard user interface for managing contacts
# Copyright (C) 2009-2020 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