view sat_frontends/quick_frontend/quick_profile_manager.py @ 2862:b2e898384c25

quick_frontend (app): progress callbacks handling: in addition to listeners, a frontend can now register progression callback and errback which are called when the given progressing action is finished. Those callbacks can be registered using registerProgressCbs or specified in actionManager.
author Goffi <goffi@goffi.org>
date Wed, 20 Mar 2019 09:08:47 +0100
parents 003b8b4b56a7
children ab2696e34d29
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line source

#!/usr/bin/env python2
# -*- coding: utf-8 -*-

# helper class for making a SAT frontend
# Copyright (C) 2009-2019 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 sat.core.i18n import _
from sat.core import log as logging

log = logging.getLogger(__name__)
from sat_frontends.primitivus.constants import Const as C


class ProfileRecord(object):
    """Class which manage data for one profile"""

    def __init__(self, profile=None, login=None, password=None):
        self._profile = profile
        self._login = login
        self._password = password

    @property
    def profile(self):
        return self._profile

    @profile.setter
    def profile(self, value):
        self._profile = value
        # if we change the profile,
        # we must have no login/password until backend give them
        self._login = self._password = None

    @property
    def login(self):
        return self._login

    @login.setter
    def login(self, value):
        self._login = value

    @property
    def password(self):
        return self._password

    @password.setter
    def password(self, value):
        self._password = value


class QuickProfileManager(object):
    """Class with manage profiles creation/deletion/connection"""

    def __init__(self, host, autoconnect=None):
        """Create the manager

        @param host: %(doc_host)s
        @param autoconnect(iterable): list of profiles to connect automatically
        """
        self.host = host
        self._autoconnect = bool(autoconnect)
        self.current = ProfileRecord()

    def go(self, autoconnect):
        if self._autoconnect:
            self.autoconnect(autoconnect)

    def autoconnect(self, profile_keys):
        """Automatically connect profiles

        @param profile_keys(iterable): list of profile keys to connect
        """
        if not profile_keys:
            log.warning("No profile given to autoconnect")
            return
        self._autoconnect = True
        self._autoconnect_profiles = []
        self._do_autoconnect(profile_keys)

    def _do_autoconnect(self, profile_keys):
        """Connect automatically given profiles

        @param profile_kes(iterable): profiles to connect
        """
        assert self._autoconnect

        def authenticate_cb(data, cb_id, profile):

            if C.bool(data.pop("validated", C.BOOL_FALSE)):
                self._autoconnect_profiles.append(profile)
                if len(self._autoconnect_profiles) == len(profile_keys):
                    # all the profiles have been validated
                    self.host.plug_profiles(self._autoconnect_profiles)
            else:
                # a profile is not validated, we go to manual mode
                self._autoconnect = False
            self.host.actionManager(data, callback=authenticate_cb, profile=profile)

        def getProfileNameCb(profile):
            if not profile:
                # FIXME: this method is not handling manual mode correclty anymore
                #        must be thought to be handled asynchronously
                self._autoconnect = False  # manual mode
                msg = _("Trying to plug an unknown profile key ({})".format(profile_key))
                log.warning(msg)
                self.host.showDialog(_("Profile plugging in error"), msg, "error")
            else:
                self.host.launchAction(
                    C.AUTHENTICATE_PROFILE_ID, callback=authenticate_cb, profile=profile
                )

        def getProfileNameEb(failure):
            log.error(u"Can't retrieve profile name: {}".format(failure))

        for profile_key in profile_keys:
            self.host.bridge.profileNameGet(
                profile_key, callback=getProfileNameCb, errback=getProfileNameEb
            )

    def getParamError(self, __):
        self.host.showDialog(_(u"Error"), _("Can't get profile parameter"), "error")

    ## Helping methods ##

    def _getErrorMessage(self, reason):
        """Return an error message corresponding to profile creation error

        @param reason (str): reason as returned by profileCreate
        @return (unicode): human readable error message
        """
        if reason == "ConflictError":
            message = _("A profile with this name already exists")
        elif reason == "CancelError":
            message = _("Profile creation cancelled by backend")
        elif reason == "ValueError":
            message = _(
                "You profile name is not valid"
            )  # TODO: print a more informative message (empty name, name starting with '@')
        else:
            message = _("Can't create profile ({})").format(reason)
        return message

    def _deleteProfile(self):
        """Delete the currently selected profile"""
        if self.current.profile:
            self.host.bridge.asyncDeleteProfile(
                self.current.profile, callback=self.refillProfiles
            )
            self.resetFields()

    ## workflow methods (events occuring during the profiles selection) ##

    # These methods must be called by the frontend at some point

    def _onConnectProfiles(self):
        """Connect the profiles and start the main widget"""
        if self._autoconnect:
            self.host.showDialog(
                _("Internal error"),
                _("You can't connect manually and automatically at the same time"),
                "error",
            )
            return
        self.updateConnectionParams()
        profiles = self.getProfiles()
        if not profiles:
            self.host.showDialog(
                _("No profile selected"),
                _("You need to create and select at least one profile before connecting"),
                "error",
            )
        else:
            # All profiles in the list are already validated, so we can plug them directly
            self.host.plug_profiles(profiles)

    def getConnectionParams(self, profile):
        """Get login and password and display them

        @param profile: %(doc_profile)s
        """
        self.host.bridge.asyncGetParamA(
            "JabberID",
            "Connection",
            profile_key=profile,
            callback=self.setJID,
            errback=self.getParamError,
        )
        self.host.bridge.asyncGetParamA(
            "Password",
            "Connection",
            profile_key=profile,
            callback=self.setPassword,
            errback=self.getParamError,
        )

    def updateConnectionParams(self):
        """Check if connection parameters have changed, and update them if so"""
        if self.current.profile:
            login = self.getJID()
            password = self.getPassword()
            if login != self.current.login and self.current.login is not None:
                self.current.login = login
                self.host.bridge.setParam(
                    "JabberID", login, "Connection", profile_key=self.current.profile
                )
                log.info(u"login updated for profile [{}]".format(self.current.profile))
            if password != self.current.password and self.current.password is not None:
                self.current.password = password
                self.host.bridge.setParam(
                    "Password", password, "Connection", profile_key=self.current.profile
                )
                log.info(
                    u"password updated for profile [{}]".format(self.current.profile)
                )

    ## graphic updates (should probably be overriden in frontends) ##

    def resetFields(self):
        """Set profile to None, and reset fields"""
        self.current.profile = None
        self.setJID("")
        self.setPassword("")

    def refillProfiles(self):
        """Rebuild the list of profiles"""
        profiles = self.host.bridge.profilesListGet()
        profiles.sort()
        self.setProfiles(profiles)

    ## Method which must be implemented by frontends ##

    # get/set data

    def getProfiles(self):
        """Return list of selected profiles

        Must be implemented by frontends
        @return (list): list of profiles
        """
        raise NotImplementedError

    def setProfiles(self, profiles):
        """Update the list of profiles"""
        raise NotImplementedError

    def getJID(self):
        """Get current jid

        Must be implemented by frontends
        @return (unicode): current jabber id
        """
        raise NotImplementedError

    def getPassword(self):
        """Get current password

        Must be implemented by frontends
        @return (unicode): current password
        """
        raise NotImplementedError

    def setJID(self, jid_):
        """Set current jid

        Must be implemented by frontends
        @param jid_(unicode): jabber id to set
        """
        raise NotImplementedError

    def setPassword(self, password):
        """Set current password

        Must be implemented by frontends
        """
        raise NotImplementedError

    # dialogs

    # Note: a method which check profiles change must be implemented too