view sat/test/test_memory.py @ 3178:98b321234068

plugin aesgcm: use 12 bytes Initialisation Vector: SàT was using 16 bytes IV when sending files withr AES-GCM, due to ChatSecure being only compatible with that. Monal, an other iOS client is only compatible with 12 bytes IV, and ChatSecure has fixed its code to also handle 12 bytes IV, so there is not reason anymore to use 16 bytes, and SàT now uses 12 bytes.
author Goffi <goffi@goffi.org>
date Tue, 18 Feb 2020 18:17:18 +0100
parents 559a625a236b
children be6d91572633
line wrap: on
line source

#!/usr/bin/env python3


# SAT: a jabber client
# Copyright (C) 2009-2020 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.test import helpers
from twisted.trial import unittest
import traceback
from .constants import Const
from xml.dom import minidom


class MemoryTest(unittest.TestCase):
    def setUp(self):
        self.host = helpers.FakeSAT()

    def _getParamXML(self, param="1", security_level=None):
        """Generate XML for testing parameters

        @param param (str): a subset of "123"
        @param security_level: security level of the parameters
        @return (str)
        """

        def getParam(name):
            return """
            <param name="%(param_name)s" label="%(param_label)s" value="true" type="bool" %(security)s/>
            """ % {
                "param_name": name,
                "param_label": _(name),
                "security": ""
                if security_level is None
                else ('security="%d"' % security_level),
            }

        params = ""
        if "1" in param:
            params += getParam(Const.ENABLE_UNIBOX_PARAM)
        if "2" in param:
            params += getParam(Const.PARAM_IN_QUOTES)
        if "3" in param:
            params += getParam("Dummy param")
        return """
        <params>
        <individual>
        <category name="%(category_name)s" label="%(category_label)s">
            %(params)s
         </category>
        </individual>
        </params>
        """ % {
            "category_name": Const.COMPOSITION_KEY,
            "category_label": _(Const.COMPOSITION_KEY),
            "params": params,
        }

    def _paramExists(self, param="1", src=None):
        """

        @param param (str): a character in "12"
        @param src (DOM element): the top-level element to look in
        @return: True is the param exists
        """
        if param == "1":
            name = Const.ENABLE_UNIBOX_PARAM
        else:
            name = Const.PARAM_IN_QUOTES
        category = Const.COMPOSITION_KEY
        if src is None:
            src = self.host.memory.params.dom.documentElement
        for type_node in src.childNodes:
            # when src comes self.host.memory.params.dom, we have here
            # some "individual" or "general" elements, when it comes
            # from Memory.getParams we have here a "params" elements
            if type_node.nodeName not in ("individual", "general", "params"):
                continue
            for cat_node in type_node.childNodes:
                if (
                    cat_node.nodeName != "category"
                    or cat_node.getAttribute("name") != category
                ):
                    continue
                for param in cat_node.childNodes:
                    if param.nodeName == "param" and param.getAttribute("name") == name:
                        return True
        return False

    def assertParam_generic(self, param="1", src=None, exists=True, deferred=False):
        """
        @param param (str): a character in "12"
        @param src (DOM element): the top-level element to look in
        @param exists (boolean): True to assert the param exists, False to assert it doesn't
        @param deferred (boolean): True if this method is called from a Deferred callback
        """
        msg = (
            "Expected parameter not found!\n"
            if exists
            else "Unexpected parameter found!\n"
        )
        if deferred:
            # in this stack we can see the line where the error came from,
            # if limit=5, 6 is not enough you can increase the value
            msg += "\n".join(traceback.format_stack(limit=5 if exists else 6))
        assertion = self._paramExists(param, src)
        getattr(self, "assert%s" % exists)(assertion, msg)

    def assertParamExists(self, param="1", src=None):
        self.assertParam_generic(param, src, True)

    def assertParamNotExists(self, param="1", src=None):
        self.assertParam_generic(param, src, False)

    def assertParamExists_async(self, src, param="1"):
        """@param src: a deferred result from Memory.getParams"""
        self.assertParam_generic(
            param, minidom.parseString(src.encode("utf-8")), True, True
        )

    def assertParamNotExists_async(self, src, param="1"):
        """@param src: a deferred result from Memory.getParams"""
        self.assertParam_generic(
            param, minidom.parseString(src.encode("utf-8")), False, True
        )

    def _getParams(self, security_limit, app="", profile_key="@NONE@"):
        """Get the parameters accessible with the given security limit and application name.

        @param security_limit (int): the security limit
        @param app (str): empty string or "libervia"
        @param profile_key
        """
        if profile_key == "@NONE@":
            profile_key = "@DEFAULT@"
        return self.host.memory.params.getParams(security_limit, app, profile_key)

    def test_updateParams(self):
        self.host.memory.reinit()
        # check if the update works
        self.host.memory.updateParams(self._getParamXML())
        self.assertParamExists()
        previous = self.host.memory.params.dom.cloneNode(True)
        # now check if it is really updated and not duplicated
        self.host.memory.updateParams(self._getParamXML())
        self.assertEqual(
            previous.toxml().encode("utf-8"),
            self.host.memory.params.dom.toxml().encode("utf-8"),
        )

        self.host.memory.reinit()
        # check successive updates (without intersection)
        self.host.memory.updateParams(self._getParamXML("1"))
        self.assertParamExists("1")
        self.assertParamNotExists("2")
        self.host.memory.updateParams(self._getParamXML("2"))
        self.assertParamExists("1")
        self.assertParamExists("2")

        previous = self.host.memory.params.dom.cloneNode(True)  # save for later

        self.host.memory.reinit()
        # check successive updates (with intersection)
        self.host.memory.updateParams(self._getParamXML("1"))
        self.assertParamExists("1")
        self.assertParamNotExists("2")
        self.host.memory.updateParams(self._getParamXML("12"))
        self.assertParamExists("1")
        self.assertParamExists("2")

        # successive updates with or without intersection should have the same result
        self.assertEqual(
            previous.toxml().encode("utf-8"),
            self.host.memory.params.dom.toxml().encode("utf-8"),
        )

        self.host.memory.reinit()
        # one update with two params in a new category
        self.host.memory.updateParams(self._getParamXML("12"))
        self.assertParamExists("1")
        self.assertParamExists("2")

    def test_getParams(self):
        # tests with no security level on the parameter (most secure)
        params = self._getParamXML()
        self.host.memory.reinit()
        self.host.memory.updateParams(params)
        self._getParams(Const.NO_SECURITY_LIMIT).addCallback(self.assertParamExists_async)
        self._getParams(0).addCallback(self.assertParamNotExists_async)
        self._getParams(1).addCallback(self.assertParamNotExists_async)
        # tests with security level 0 on the parameter (not secure)
        params = self._getParamXML(security_level=0)
        self.host.memory.reinit()
        self.host.memory.updateParams(params)
        self._getParams(Const.NO_SECURITY_LIMIT).addCallback(self.assertParamExists_async)
        self._getParams(0).addCallback(self.assertParamExists_async)
        self._getParams(1).addCallback(self.assertParamExists_async)
        # tests with security level 1 on the parameter (more secure)
        params = self._getParamXML(security_level=1)
        self.host.memory.reinit()
        self.host.memory.updateParams(params)
        self._getParams(Const.NO_SECURITY_LIMIT).addCallback(self.assertParamExists_async)
        self._getParams(0).addCallback(self.assertParamNotExists_async)
        return self._getParams(1).addCallback(self.assertParamExists_async)

    def test_paramsRegisterApp(self):
        def register(xml, security_limit, app):
            """
            @param xml: XML definition of the parameters to be added
            @param security_limit: -1 means no security, 0 is the maximum security then the higher the less secure
            @param app: name of the frontend registering the parameters
            """
            helpers.muteLogging()
            self.host.memory.paramsRegisterApp(xml, security_limit, app)
            helpers.unmuteLogging()

        # tests with no security level on the parameter (most secure)
        params = self._getParamXML()
        self.host.memory.reinit()
        register(params, Const.NO_SECURITY_LIMIT, Const.APP_NAME)
        self.assertParamExists()
        self.host.memory.reinit()
        register(params, 0, Const.APP_NAME)
        self.assertParamNotExists()
        self.host.memory.reinit()
        register(params, 1, Const.APP_NAME)
        self.assertParamNotExists()

        # tests with security level 0 on the parameter (not secure)
        params = self._getParamXML(security_level=0)
        self.host.memory.reinit()
        register(params, Const.NO_SECURITY_LIMIT, Const.APP_NAME)
        self.assertParamExists()
        self.host.memory.reinit()
        register(params, 0, Const.APP_NAME)
        self.assertParamExists()
        self.host.memory.reinit()
        register(params, 1, Const.APP_NAME)
        self.assertParamExists()

        # tests with security level 1 on the parameter (more secure)
        params = self._getParamXML(security_level=1)
        self.host.memory.reinit()
        register(params, Const.NO_SECURITY_LIMIT, Const.APP_NAME)
        self.assertParamExists()
        self.host.memory.reinit()
        register(params, 0, Const.APP_NAME)
        self.assertParamNotExists()
        self.host.memory.reinit()
        register(params, 1, Const.APP_NAME)
        self.assertParamExists()

        # tests with security level 1 and several parameters being registered
        params = self._getParamXML("12", security_level=1)
        self.host.memory.reinit()
        register(params, Const.NO_SECURITY_LIMIT, Const.APP_NAME)
        self.assertParamExists()
        self.assertParamExists("2")
        self.host.memory.reinit()
        register(params, 0, Const.APP_NAME)
        self.assertParamNotExists()
        self.assertParamNotExists("2")
        self.host.memory.reinit()
        register(params, 1, Const.APP_NAME)
        self.assertParamExists()
        self.assertParamExists("2")

        # tests with several parameters being registered in an existing category
        self.host.memory.reinit()
        self.host.memory.updateParams(self._getParamXML("3"))
        register(self._getParamXML("12"), Const.NO_SECURITY_LIMIT, Const.APP_NAME)
        self.assertParamExists()
        self.assertParamExists("2")
        self.host.memory.reinit()

    def test_paramsRegisterApp_getParams(self):
        # test retrieving the parameter for a specific frontend
        self.host.memory.reinit()
        params = self._getParamXML(security_level=1)
        self.host.memory.paramsRegisterApp(params, 1, Const.APP_NAME)
        self._getParams(1, "").addCallback(self.assertParamExists_async)
        self._getParams(1, Const.APP_NAME).addCallback(self.assertParamExists_async)
        self._getParams(1, "another_dummy_frontend").addCallback(
            self.assertParamNotExists_async
        )

        # the same with several parameters registered at the same time
        self.host.memory.reinit()
        params = self._getParamXML("12", security_level=0)
        self.host.memory.paramsRegisterApp(params, 5, Const.APP_NAME)
        self._getParams(5, "").addCallback(self.assertParamExists_async)
        self._getParams(5, "").addCallback(self.assertParamExists_async, "2")
        self._getParams(5, Const.APP_NAME).addCallback(self.assertParamExists_async)
        self._getParams(5, Const.APP_NAME).addCallback(self.assertParamExists_async, "2")
        self._getParams(5, "another_dummy_frontend").addCallback(
            self.assertParamNotExists_async
        )
        return self._getParams(5, "another_dummy_frontend").addCallback(
            self.assertParamNotExists_async, "2"
        )