227 lines
9 KiB
Python
227 lines
9 KiB
Python
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# -*- coding: utf8 -*-
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# libray - Libre Blu-Ray PS3 ISO Tool
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# Copyright © 2018 - 2024 Nichlas Severinsen
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#
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# This file is part of libray.
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#
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# libray is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# libray is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with libray. If not, see <https://www.gnu.org/licenses/>.
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# This file contains tests to validate the key-retrieval logic for the
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# ISO class.
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# This script is not included in the release of libray.
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import argparse
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import unittest
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import unittest.mock as mock
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from Crypto.Cipher import AES
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from libray import core, iso
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class TestISO(unittest.TestCase):
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_explicit_decryption_key(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.decryption_key = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
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decryptkey_bytes = core.to_bytes(mock_args.decryption_key)
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fake_iso = iso.ISO.__new__(iso.ISO)
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returned_key = fake_iso.get_key_from_args('AAA', mock_args)
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self.assertEqual(decryptkey_bytes, returned_key)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_explicit_valid_ird(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = 'aaa.ird'
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mock_args.decryption_key = False
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mock_args.verbose = True
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ird = mock.Mock()
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ird.region_count = 3
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ird.data1 = b'01010101010101010101010101010101'
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cipher = AES.new(core.ISO_SECRET, AES.MODE_CBC, core.ISO_IV)
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decryptkey_bytes = cipher.encrypt(ird.data1)
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 2048
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fake_iso.regions = [
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{'start': 0, 'end': 512, 'enc': False},
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{'start': 512, 'end': 1024, 'enc': True},
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{'start': 1024, 'end': 2048, 'enc': False}
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]
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with mock.patch('iso.ird.IRD', return_value=ird) as mock_ird:
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returned_key = fake_iso.get_key_from_args('AAA', mock_args)
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mock_ird.assert_called_once_with('aaa.ird')
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self.assertEqual(decryptkey_bytes, returned_key)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_ird_with_region_count_mismatch(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = 'aaa.ird'
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mock_args.decryption_key = False
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mock_args.verbose = True
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ird = mock.Mock()
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ird.region_count = 3
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ird.data1 = b'01010101010101010101010101010101'
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512
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fake_iso.regions = [
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{'start': 0, 'end': 512, 'enc': False},
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]
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with mock.patch('iso.ird.IRD', return_value=ird) as mock_ird:
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with self.assertRaises(SystemExit):
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fake_iso.get_key_from_args('AAA', mock_args)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_ird_with_invalid_start(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = 'aaa.ird'
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mock_args.decryption_key = False
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mock_args.verbose = True
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ird = mock.Mock()
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ird.region_count = 3
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ird.data1 = b'01010101010101010101010101010101'
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.regions = [
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{'start': 0, 'end': 3000000, 'enc': False},
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{'start': 3000000, 'end': 2000000000, 'enc': True},
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{'start': 2000000000, 'end': 2000001000, 'enc': False}
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]
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with mock.patch('iso.ird.IRD', return_value=ird) as mock_ird:
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with self.assertRaises(SystemExit):
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fake_iso.get_key_from_args('AAA', mock_args)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_keys_db_size_match(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = ''
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mock_args.decryption_key = False
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mock_args.verbose = True
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.game_id = 'TCUS-12345'
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with mock.patch('iso.sqlite3') as mocksql:
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decryption_key = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
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decryptkey_bytes = core.to_bytes(decryption_key)
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mocksql.connect().cursor().execute().fetchall.return_value = [['AAA', decryptkey_bytes]]
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returned_key = fake_iso.get_key_from_args('AAA', mock_args)
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self.assertEqual(decryptkey_bytes, returned_key)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_keys_db_size_multiple_match_name_lookup(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = ''
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mock_args.decryption_key = False
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mock_args.verbose = True
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.game_id = 'TCUS-12345'
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with mock.patch('iso.sqlite3') as mocksql:
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decryption_key = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
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decryptkey_bytes = core.to_bytes(decryption_key)
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mocksql.connect().cursor().execute().fetchall.side_effect = [[], [['AAA', decryptkey_bytes]]]
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returned_key = fake_iso.get_key_from_args('AAA', mock_args)
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self.assertEqual(decryptkey_bytes, returned_key)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_keys_db_size_multiple_match_no_game_id(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = ''
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mock_args.decryption_key = False
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mock_args.verbose = True
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.game_id = 'TCUS-12345'
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with mock.patch('iso.sqlite3') as mocksql:
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decryption_key = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
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decryptkey_bytes = core.to_bytes(decryption_key)
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mocksql.connect().cursor().execute().fetchall.return_value = [['AAA', decryptkey_bytes],['BBB', decryptkey_bytes]]
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with self.assertRaises(ValueError):
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fake_iso.get_key_from_args(None, mock_args)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_keys_db_no_match_no_checksum(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = ''
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mock_args.decryption_key = False
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mock_args.checksum = False
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mock_args.verbose = True
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.game_id = 'TCUS-12345'
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with mock.patch('iso.sqlite3') as mocksql:
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mocksql.connect().cursor().execute().fetchall.return_value = []
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with self.assertRaises(SystemExit):
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fake_iso.get_key_from_args('AAA', mock_args)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_keys_db_no_match_checksum_fallback(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = ''
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mock_args.decryption_key = False
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mock_args.checksum = True
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mock_args.checksum_timeout = 15
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mock_args.verbose = True
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.game_id = 'TCUS-12345'
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with mock.patch('iso.sqlite3') as mocksql:
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decryption_key = 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
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decryptkey_bytes = core.to_bytes(decryption_key)
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fakeresults = ([], [], [['AAA', decryptkey_bytes]])
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mocksql.connect().cursor().execute().fetchall.side_effect = fakeresults
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with mock.patch('iso.core.crc32', return_value='01010101'):
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returned_key = fake_iso.get_key_from_args('AAA', mock_args)
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self.assertEqual(decryptkey_bytes, returned_key)
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@mock.patch('argparse.ArgumentParser.parse_args', return_value=argparse.Namespace())
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def test_keys_db_no_match_checksum_timeout(self, mock_args):
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mock_args.iso = 'fake.iso'
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mock_args.ird = ''
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mock_args.decryption_key = False
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mock_args.checksum = True
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mock_args.checksum_timeout = 15
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mock_args.verbose = True
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fake_iso = iso.ISO.__new__(iso.ISO)
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fake_iso.size = 512 * 1024 * 1024
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fake_iso.game_id = 'TCUS-12345'
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with mock.patch('iso.sqlite3') as mocksql:
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mocksql.connect().cursor().execute().fetchall.return_value = []
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with mock.patch('iso.core.crc32', return_value=None):
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with self.assertRaises(TimeoutError):
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fake_iso.get_key_from_args('AAA', mock_args)
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