view test/test_userauditor.py @ 5201:a9ace22e0a2f

issue 2550690 - Adding anti-csrf measures to roundup following https://www.owasp.org/index.php/Cross-Site_Request_Forgery_(CSRF)_Prevention_Cheat_Sheet and https://seclab.stanford.edu/websec/csrf/csrf.pdf Basically implement Synchronizer (CSRF) Tokens per form on a page. Single use (destroyed once used). Random input data for the token includes: system random implementation in python using /dev/urandom (fallback to random based on timestamp as the seed. Not as good, but should be ok for the short lifetime of the token??) the id (in cpython it's the memory address) of the object requesting a token. In theory this depends on memory layout, the history of the process (how many previous objects have been allocated from the heap etc.) I claim without any proof that for long running processes this is another source of randomness. For short running processes with little activity it could be guessed. last the floating point time.time() value is added. This may only have 1 second resolution so may be guessable. Hopefully for a short lived (2 week by default) token this is sufficient. Also in the current implementation the user is notified when validation fails and is told why. This allows the roundup admin to find the log entry (at error level) and try to resolve the issue. In the future user notification may change but for now this is probably best.
author John Rouillard <rouilj@ieee.org>
date Sat, 18 Mar 2017 16:59:01 -0400
parents 37d1e24fb941
children 198b6e810c67
line wrap: on
line source

import os, unittest, shutil

from db_test_base import setupTracker
from .test_dates import skip_pytz


class UserAuditorTest(unittest.TestCase):
    def setUp(self):
        self.dirname = '_test_user_auditor'
        self.instance = setupTracker(self.dirname)
        self.db = self.instance.open('admin')
        self.db.tx_Source = "cli"

        self.db.user.create(username='kyle', address='kyle@example.com',
            realname='Kyle Broflovski', roles='User')

    def tearDown(self):
        self.db.close()
        try:
            shutil.rmtree(self.dirname)
        except OSError, error:
            if error.errno not in (errno.ENOENT, errno.ESRCH): raise

    def testBadTimezones(self):
        self.assertRaises(ValueError, self.db.user.create, username='eric', timezone='24')

        userid = self.db.user.lookup('kyle')

        self.assertRaises(ValueError, self.db.user.set, userid, timezone='3000')
        self.assertRaises(ValueError, self.db.user.set, userid, timezone='24')
        self.assertRaises(ValueError, self.db.user.set, userid, timezone='-24')
        self.assertRaises(ValueError, self.db.user.set, userid, timezone='-3000')

    @skip_pytz
    def testBadTimezonesPyTZ(self):
        userid = self.db.user.lookup('kyle')

        try:
            from pytz import UnknownTimeZoneError
        except:
            UnknownTimeZoneError = ValueError

        self.assertRaises(UnknownTimeZoneError, self.db.user.set, userid,
                          timezone='MiddleOf/Nowhere')

    def testGoodTimezones(self):
        self.db.user.create(username='test_user01', timezone='12')

        userid = self.db.user.lookup('kyle')

        # TODO: roundup should accept non-integer offsets since those are valid
        # this is the offset for Tehran, Iran
        #self.db.user.set(userid, timezone='3.5')

        self.db.user.set(userid, timezone='-23')
        self.db.user.set(userid, timezone='23')
        self.db.user.set(userid, timezone='0')

    @skip_pytz
    def testGoodTimezonesPyTZ(self):
        userid = self.db.user.lookup('kyle')

        self.db.user.create(username='test_user02', timezone='MST')
        self.db.user.set(userid, timezone='US/Eastern')

    def testBadEmailAddresses(self):
        userid = self.db.user.lookup('kyle')
        self.assertRaises(ValueError, self.db.user.set, userid, address='kyle @ example.com')
        self.assertRaises(ValueError, self.db.user.set, userid, address='one@example.com,two@example.com')
        self.assertRaises(ValueError, self.db.user.set, userid, address='weird@@example.com')
        self.assertRaises(ValueError, self.db.user.set, userid, address='embedded\nnewline@example.com')
        # verify that we check alternates as well
        self.assertRaises(ValueError, self.db.user.set, userid, alternate_addresses='kyle @ example.com')
        # make sure we accept local style addresses
        self.db.user.set(userid, address='kyle')
        # verify we are case insensitive
        self.db.user.set(userid, address='kyle@EXAMPLE.COM')

    def testUniqueEmailAddresses(self):
        self.db.user.create(username='kenny', address='kenny@example.com', alternate_addresses='sp_ken@example.com')
        self.assertRaises(ValueError, self.db.user.create, username='test_user01', address='kenny@example.com')
        uid = self.db.user.create(username='eric', address='eric@example.com')
        self.assertRaises(ValueError, self.db.user.set, uid, address='kenny@example.com')

        # make sure we check alternates
        self.assertRaises(ValueError, self.db.user.set, uid, address='kenny@example.com')
        self.assertRaises(ValueError, self.db.user.set, uid, address='sp_ken@example.com')
        self.assertRaises(ValueError, self.db.user.set, uid, alternate_addresses='kenny@example.com')

    def testBadRoles(self):
        userid = self.db.user.lookup('kyle')
        self.assertRaises(ValueError, self.db.user.set, userid, roles='BadRole')
        self.assertRaises(ValueError, self.db.user.set, userid, roles='User,BadRole')

    def testGoodRoles(self):
        userid = self.db.user.lookup('kyle')
        # make sure we handle commas in weird places
        self.db.user.set(userid, roles='User,')
        self.db.user.set(userid, roles=',User')
        # make sure we strip whitespace
        self.db.user.set(userid, roles='    User   ')
        # check for all-whitespace (treat as no role)
        self.db.user.set(userid, roles='   ')

# vim: filetype=python sts=4 sw=4 et si

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