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import datetime
import os
from hashlib import sha1
from peewee import DatabaseError
from playhouse.sqlcipher_ext import *
from playhouse.sqlite_ext import *
from .base import ModelTestCase
from .base import TestModel
PASSPHRASE = 'testing sqlcipher'
PRAGMAS = {'kdf_iter': 10} # Much faster for testing. Totally unsafe.
db = SqlCipherDatabase('peewee_test.dbc', passphrase=PASSPHRASE,
pragmas=PRAGMAS)
ext_db = SqlCipherExtDatabase('peewee_test.dbx', passphrase=PASSPHRASE,
pragmas=PRAGMAS)
@ext_db.func('shazam')
def shazam(s):
return sha1((s or '').encode('utf-8')).hexdigest()[:5]
class Thing(TestModel):
name = CharField()
class FTSNote(FTSModel, TestModel):
content = TextField()
class Note(TestModel):
content = TextField()
timestamp = DateTimeField(default=datetime.datetime.now)
class CleanUpModelTestCase(ModelTestCase):
def tearDown(self):
super(CleanUpModelTestCase, self).tearDown()
if os.path.exists(self.database.database):
os.unlink(self.database.database)
class SqlCipherTestCase(CleanUpModelTestCase):
database = db
requires = [Thing]
def test_good_and_bad_passphrases(self):
things = ('t1', 't2', 't3')
for thing in things:
Thing.create(name=thing)
# Try to open db with wrong passphrase
bad_db = SqlCipherDatabase(db.database, passphrase='wrong passphrase')
self.assertRaises(DatabaseError, bad_db.get_tables)
# Assert that we can still access the data with the good passphrase.
query = Thing.select().order_by(Thing.name)
self.assertEqual([t.name for t in query], ['t1', 't2', 't3'])
def test_rekey(self):
things = ('t1', 't2', 't3')
for thing in things:
Thing.create(name=thing)
self.database.rekey('a new passphrase')
db2 = SqlCipherDatabase(db.database, passphrase='a new passphrase',
pragmas=PRAGMAS)
cursor = db2.execute_sql('select name from thing order by name;')
self.assertEqual([name for name, in cursor], ['t1', 't2', 't3'])
query = Thing.select().order_by(Thing.name)
self.assertEqual([t.name for t in query], ['t1', 't2', 't3'])
self.database.close()
self.database.connect()
query = Thing.select().order_by(Thing.name)
self.assertEqual([t.name for t in query], ['t1', 't2', 't3'])
# Re-set to the original passphrase.
self.database.rekey(PASSPHRASE)
def test_empty_passphrase(self):
db = SqlCipherDatabase(':memory:')
class CM(TestModel):
data = TextField()
class Meta:
database = db
db.connect()
db.create_tables([CM])
cm = CM.create(data='foo')
cm_db = CM.get(CM.data == 'foo')
self.assertEqual(cm_db.id, cm.id)
self.assertEqual(cm_db.data, 'foo')
config_db = SqlCipherDatabase('peewee_test.dbc', pragmas={
'kdf_iter': 1234,
'cipher_page_size': 8192}, passphrase=PASSPHRASE)
class TestSqlCipherConfiguration(CleanUpModelTestCase):
database = config_db
def test_configuration_via_pragma(self):
# Write some data so the database file is created.
self.database.execute_sql('create table foo (data TEXT)')
self.database.close()
self.database.connect()
self.assertEqual(int(self.database.pragma('kdf_iter')), 1234)
self.assertEqual(int(self.database.pragma('cipher_page_size')), 8192)
self.assertTrue('foo' in self.database.get_tables())
class SqlCipherExtTestCase(CleanUpModelTestCase):
database = ext_db
requires = [Note]
def setUp(self):
super(SqlCipherExtTestCase, self).setUp()
FTSNote._meta.database = ext_db
FTSNote.drop_table(True)
FTSNote.create_table(tokenize='porter', content=Note.content)
def tearDown(self):
FTSNote.drop_table(True)
super(SqlCipherExtTestCase, self).tearDown()
def test_fts(self):
strings = [
'python and peewee for working with databases',
'relational databases are the best',
'sqlite is the best relational database',
'sqlcipher is a cool database extension']
for s in strings:
Note.create(content=s)
FTSNote.rebuild()
query = (FTSNote
.select(FTSNote, FTSNote.rank().alias('score'))
.where(FTSNote.match('relational databases'))
.order_by(SQL('score').desc()))
notes = [note.content for note in query]
self.assertEqual(notes, [
'relational databases are the best',
'sqlite is the best relational database'])
alt_conn = SqliteDatabase(ext_db.database)
self.assertRaises(
DatabaseError,
alt_conn.execute_sql,
'SELECT * FROM "%s"' % (FTSNote._meta.table_name))
def test_func(self):
Note.create(content='hello')
Note.create(content='baz')
Note.create(content='nug')
query = (Note
.select(Note.content, fn.shazam(Note.content).alias('shz'))
.order_by(Note.id)
.dicts())
results = list(query)
self.assertEqual(results, [
{'content': 'hello', 'shz': 'aaf4c'},
{'content': 'baz', 'shz': 'bbe96'},
{'content': 'nug', 'shz': '52616'},
])
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