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# -*- coding: utf-8 -*-
# test_fs_backend.py
# Copyright (C) 2017 LEAP
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Tests for blobs backend on server side.
"""
from twisted.trial import unittest
from twisted.internet import defer
from twisted.web.test.test_web import DummyRequest
from leap.soledad.server import _blobs
from io import BytesIO
from mock import Mock
import mock
import os
import base64
import json
import pytest
class FilesystemBackendTestCase(unittest.TestCase):
@mock.patch.object(_blobs, 'open')
def test_tag_header(self, open_mock):
open_mock.return_value = BytesIO('A' * 40 + 'B' * 16)
expected_tag = base64.urlsafe_b64encode('B' * 16)
expected_method = Mock()
backend = _blobs.FilesystemBlobsBackend()
request = Mock(responseHeaders=Mock(setRawHeaders=expected_method))
backend.add_tag_header('user', 'blob_id', request)
expected_method.assert_called_once_with('Tag', [expected_tag])
@mock.patch.object(_blobs.static, 'File')
def test_read_blob(self, file_mock):
render_mock = Mock()
file_mock.return_value = render_mock
backend = _blobs.FilesystemBlobsBackend()
request = DummyRequest([''])
backend._get_path = Mock(return_value='path')
backend.read_blob('user', 'blob_id', request)
backend._get_path.assert_called_once_with('user', 'blob_id', '')
ctype = 'application/octet-stream'
_blobs.static.File.assert_called_once_with('path', defaultType=ctype)
render_mock.render_GET.assert_called_once_with(request)
@mock.patch.object(os.path, 'isfile')
@defer.inlineCallbacks
def test_cannot_overwrite(self, isfile):
isfile.return_value = True
backend = _blobs.FilesystemBlobsBackend()
backend._get_path = Mock(return_value='path')
request = DummyRequest([''])
yield backend.write_blob('user', 'blob_id', request)
self.assertEquals(request.written[0], "Blob already exists: blob_id")
self.assertEquals(request.responseCode, 409)
@pytest.mark.usefixtures("method_tmpdir")
@mock.patch.object(os.path, 'isfile')
@defer.inlineCallbacks
def test_write_cannot_exceed_quota(self, isfile):
isfile.return_value = False
backend = _blobs.FilesystemBlobsBackend()
backend._get_path = Mock(return_value=self.tempdir)
request = Mock()
backend.get_total_storage = lambda x: 100
backend.quota = 90
yield backend.write_blob('user', 'blob_id', request)
request.setResponseCode.assert_called_once_with(507)
request.write.assert_called_once_with('Quota Exceeded!')
def test_get_path_partitioning_by_default(self):
backend = _blobs.FilesystemBlobsBackend()
backend.path = '/somewhere/'
path = backend._get_path('user', 'blob_id', '')
self.assertEquals(path, '/somewhere/user/b/blo/blob_i/blob_id')
def test_get_path_custom(self):
backend = _blobs.FilesystemBlobsBackend()
backend.path = '/somewhere/'
path = backend._get_path('user', 'blob_id', 'wonderland')
self.assertEquals(path, '/somewhere/user/wonderland/blob_id')
def test_get_path_namespace_traversal_raises(self):
backend = _blobs.FilesystemBlobsBackend()
backend.path = '/somewhere/'
with pytest.raises(Exception):
backend._get_path('user', 'blob_id', '..')
@pytest.mark.usefixtures("method_tmpdir")
@mock.patch('leap.soledad.server._blobs.os.walk')
def test_list_blobs(self, walk_mock):
backend, _ = _blobs.FilesystemBlobsBackend(self.tempdir), None
walk_mock.return_value = [('', _, ['blob_0']), ('', _, ['blob_1'])]
result = json.loads(backend.list_blobs('user', DummyRequest([''])))
self.assertEquals(result, ['blob_0', 'blob_1'])
@pytest.mark.usefixtures("method_tmpdir")
@mock.patch('leap.soledad.server._blobs.os.walk')
def test_list_blobs_limited_by_namespace(self, walk_mock):
backend, _ = _blobs.FilesystemBlobsBackend(self.tempdir), None
walk_mock.return_value = [('', _, ['blob_0']), ('', _, ['blob_1'])]
result = json.loads(backend.list_blobs('user', DummyRequest(['']),
namespace='incoming'))
self.assertEquals(result, ['blob_0', 'blob_1'])
target_dir = os.path.join(self.tempdir, 'user', 'incoming')
walk_mock.assert_called_once_with(target_dir)
@pytest.mark.usefixtures("method_tmpdir")
def test_path_validation_on_read_blob(self):
blobs_path, request = self.tempdir, DummyRequest([''])
backend = _blobs.FilesystemBlobsBackend(blobs_path)
with pytest.raises(Exception):
backend.read_blob('..', '..', request)
with pytest.raises(Exception):
backend.read_blob('user', '../../../', request)
with pytest.raises(Exception):
backend.read_blob('../../../', 'blob_id', request)
with pytest.raises(Exception):
backend.read_blob('user', 'blob_id', request, namespace='..')
@pytest.mark.usefixtures("method_tmpdir")
@defer.inlineCallbacks
def test_path_validation_on_write_blob(self):
blobs_path, request = self.tempdir, DummyRequest([''])
backend = _blobs.FilesystemBlobsBackend(blobs_path)
with pytest.raises(Exception):
yield backend.write_blob('..', '..', request)
with pytest.raises(Exception):
yield backend.write_blob('user', '../../../', request)
with pytest.raises(Exception):
yield backend.write_blob('../../../', 'id1', request)
with pytest.raises(Exception):
yield backend.write_blob('user', 'id2', request, namespace='..')
@pytest.mark.usefixtures("method_tmpdir")
@mock.patch('leap.soledad.server._blobs.os.unlink')
def test_delete_blob(self, unlink_mock):
backend = _blobs.FilesystemBlobsBackend(self.tempdir)
backend.delete_blob('user', 'blob_id')
unlink_mock.assert_called_once_with(backend._get_path('user',
'blob_id'))
@pytest.mark.usefixtures("method_tmpdir")
@mock.patch('leap.soledad.server._blobs.os.unlink')
def test_delete_blob_custom_namespace(self, unlink_mock):
backend = _blobs.FilesystemBlobsBackend(self.tempdir)
backend.delete_blob('user', 'blob_id', namespace='trash')
unlink_mock.assert_called_once_with(backend._get_path('user',
'blob_id',
'trash'))
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