Mercurial > libervia-backend
view sat/plugins/plugin_misc_welcome.py @ 2716:06160b529da6
core (memory/sqlite): changed history constraint
/!\ Database schema change /!\
History was using a unique constraint on `profile_id, timestamp, source, dest, source_res, dest_res`, which can cause trouble because several messages send quickly by the same person can have a common timestamp (specially with delayed messages where precision is second), resulting in message loss.
The new constraint use `profile_id, stanza_id, source, dest` where `stanza_id` is XEP-0359 stanza_id, so it's unique by definition, and no message should be lost anymore.
Because sqlite doesn't support altering table with a constraint change, we have to create new tables and copy old data to new one, which can be pretty long.
Sqlite update mechanism with "specifics" has been fixed when several updates are applied (e.g. moving from v5 to v7) and a specific is in the workflow.
author | Goffi <goffi@goffi.org> |
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date | Sun, 09 Dec 2018 14:07:26 +0100 |
parents | 56f94936df1e |
children | 003b8b4b56a7 |
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#!/usr/bin/env python2 # -*- coding: utf-8 -*- # SAT plugin for file tansfer # Copyright (C) 2009-2018 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 _, D_ from sat.core.constants import Const as C from sat.core.log import getLogger log = getLogger(__name__) from sat.tools import xml_tools PLUGIN_INFO = { C.PI_NAME: "Welcome", C.PI_IMPORT_NAME: "WELCOME", C.PI_TYPE: C.PLUG_TYPE_MISC, C.PI_MAIN: "Welcome", C.PI_HANDLER: "no", C.PI_DESCRIPTION: _( """Plugin which manage welcome message and things to to on first connection.""" ), } WELCOME_PARAM_CATEGORY = "General" WELCOME_PARAM_NAME = "welcome" WELCOME_PARAM_LABEL = D_(u"Display welcome message") WELCOME_MSG_TITLE = D_(u"Welcome to Libervia/Salut à Toi") # XXX: this message is mainly targetting libervia new users for now # (i.e.: it may look weird on other frontends) WELCOME_MSG = D_( u"""Welcome to a free (as in freedom) network! If you have any trouble, or you want to help us for the bug hunting, you can contact us in real time chat by using the “Help / Official chat room” menu. To use Libervia, you'll need to add contacts, either people you know, or people you discover by using the “Contacts / Search directory” menu. We hope that you'll enjoy using this project. The Libervia/Salut à Toi Team """ ) PARAMS = """ <params> <individual> <category name="{category}"> <param name="{name}" label="{label}" type="bool" /> </category> </individual> </params> """.format( category=WELCOME_PARAM_CATEGORY, name=WELCOME_PARAM_NAME, label=WELCOME_PARAM_LABEL ) class Welcome(object): def __init__(self, host): log.info(_("plugin Welcome initialization")) self.host = host host.memory.updateParams(PARAMS) def profileConnected(self, client): # XXX: if you wan to try first_start again, you'll have to remove manually # the welcome value from your profile params in sat.db welcome = self.host.memory.params.getParamA( WELCOME_PARAM_NAME, WELCOME_PARAM_CATEGORY, use_default=False, profile_key=client.profile, ) if welcome is None: first_start = True welcome = True else: first_start = False if welcome: xmlui = xml_tools.note(WELCOME_MSG, WELCOME_MSG_TITLE) self.host.actionNew({"xmlui": xmlui.toXml()}, profile=client.profile) self.host.memory.setParam( WELCOME_PARAM_NAME, C.BOOL_FALSE, WELCOME_PARAM_CATEGORY, profile_key=client.profile, ) self.host.trigger.point("WELCOME", first_start, welcome, client.profile)