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# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
import os
import re
import sys
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).parents[3] / "quota/test/marionette"))
from quota_test_case import QuotaTestCase
INDEXED_DB_PBM_PREF = "dom.indexedDB.privateBrowsing.enabled"
QM_TESTING_PREF = "dom.quotaManager.testing"
class IDBEncryptionPBM(QuotaTestCase):
"""
Bug1784966: Ensure IDB data gets encrypted in Private Browsing Mode.
We need to ensure data inside both sqlite fields and blob files under
*.sqllite gets encrypted.
"""
def setUp(self):
super(IDBEncryptionPBM, self).setUp()
self.testHTML = "dom/indexedDB/basicIDB_PBM.html"
self.IDBName = "IDBTest"
self.IDBStoreName = "IDBTestStore"
self.IDBVersion = 1
self.IDBValue = "test_IDB_Encryption_PBM"
self.idbStoragePath = None
self.profilePath = self.marionette.instance.profile.profile
self.defaultIDBPrefValue = self.marionette.get_pref(INDEXED_DB_PBM_PREF)
self.marionette.set_pref(INDEXED_DB_PBM_PREF, True)
self.defaultQMPrefValue = self.marionette.get_pref(QM_TESTING_PREF)
self.marionette.set_pref(QM_TESTING_PREF, True)
def tearDown(self):
super(IDBEncryptionPBM, self).tearDown()
self.marionette.set_pref(INDEXED_DB_PBM_PREF, self.defaultIDBPrefValue)
self.marionette.set_pref(QM_TESTING_PREF, self.defaultQMPrefValue)
def test_raw_IDB_data_ondisk(self):
with self.using_new_window(self.testHTML, private=False) as (
self.origin,
self.persistenceType,
):
self.runAndValidate(
lambda exists: self.assertTrue(
exists, "Failed to find expected data on disk"
)
)
def test_ensure_encrypted_IDB_data_ondisk(self):
with self.using_new_window(self.testHTML, private=True) as (
self.origin,
self.persistenceType,
):
self.runAndValidate(
lambda exists: self.assertFalse(exists, "Data on disk is not encrypted")
)
def runAndValidate(self, validator):
self.marionette.execute_async_script(
"""
const [idb, store, key, value, resolve] = arguments;
window.wrappedJSObject.addDataIntoIDB(idb, store, key, value).then(resolve);
""",
script_args=(self.IDBName, self.IDBStoreName, "textKey", self.IDBValue),
)
self.validateSqlite(validator)
self.marionette.execute_async_script(
"""
const [idb, store, key, value, resolve] = arguments;
const blobValue = new Blob([value], {type:'text/plain'});
window.wrappedJSObject.addDataIntoIDB(idb, store, key, blobValue).then(resolve);
""",
script_args=(self.IDBName, self.IDBStoreName, "blobKey", self.IDBValue),
)
self.validateBlob(validator)
def validateBlob(self, validator):
self.ensureInvariantHolds(lambda _: self.sqliteWALReleased())
self.ensureInvariantHolds(
lambda _: self.findDirObj(self.getIDBStoragePath(), ".files", False)
is not None
)
idbBlobDir = self.findDirObj(self.getIDBStoragePath(), ".files", False)
# seems like there's a timing issue here. There are sometimes no blob file
# even after WAL is released. Allowing some buffer time and ensuring blob file
# exists before validating it's contents
idbBlobPath = os.path.join(idbBlobDir, "1")
self.ensureInvariantHolds(lambda _: os.path.exists(idbBlobPath))
foundRawValue = False
with open(idbBlobPath, "rb") as f_binary:
foundRawValue = (
re.search(self.IDBValue.encode("ascii"), f_binary.read()) is not None
)
validator(foundRawValue)
def validateSqlite(self, validator):
self.ensureInvariantHolds(lambda _: self.sqliteWALReleased())
self.ensureInvariantHolds(
lambda _: self.findDirObj(self.getIDBStoragePath(), ".sqlite", True)
is not None
)
sqliteDBFile = self.findDirObj(self.getIDBStoragePath(), ".sqlite", True)
foundRawValue = False
with open(sqliteDBFile, "rb") as f_binary:
foundRawValue = (
re.search(self.IDBValue.encode("ascii"), f_binary.read()) is not None
)
validator(foundRawValue)
def getIDBStoragePath(self):
if self.idbStoragePath is not None:
return self.idbStoragePath
assert self.origin is not None
assert self.persistenceType is not None
self.idbStoragePath = self.getStoragePath(
self.profilePath, self.origin, self.persistenceType, "idb"
)
print("idb origin directory = " + self.idbStoragePath)
return self.idbStoragePath
def sqliteWALReleased(self):
"""
checks if .sqlite-wal has been cleared or not.
returns False if idbStoragePath does not exist
"""
if not os.path.exists(self.getIDBStoragePath()):
return False
walPath = self.findDirObj(self.idbStoragePath, ".sqlite-wal", True)
return walPath is None or os.stat(walPath).st_size == 0
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