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test_s3boto3.py
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test_s3boto3.py
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import gzip
import pickle
import threading
from datetime import datetime
from textwrap import dedent
from unittest import mock, skipIf
from urllib.parse import urlparse
from botocore.exceptions import ClientError
from django.conf import settings
from django.core.exceptions import ImproperlyConfigured
from django.core.files.base import ContentFile
from django.test import TestCase, override_settings
from django.utils.timezone import is_aware, utc
from storages.backends import s3boto3
class S3Boto3TestCase(TestCase):
def setUp(self):
self.storage = s3boto3.S3Boto3Storage()
self.storage._connections.connection = mock.MagicMock()
class S3Boto3StorageTests(S3Boto3TestCase):
def test_clean_name(self):
"""
Test the base case of _clean_name
"""
path = self.storage._clean_name("path/to/somewhere")
self.assertEqual(path, "path/to/somewhere")
def test_clean_name_normalize(self):
"""
Test the normalization of _clean_name
"""
path = self.storage._clean_name("path/to/../somewhere")
self.assertEqual(path, "path/somewhere")
def test_clean_name_trailing_slash(self):
"""
Test the _clean_name when the path has a trailing slash
"""
path = self.storage._clean_name("path/to/somewhere/")
self.assertEqual(path, "path/to/somewhere/")
def test_clean_name_windows(self):
"""
Test the _clean_name when the path has a trailing slash
"""
path = self.storage._clean_name("path\\to\\somewhere")
self.assertEqual(path, "path/to/somewhere")
def test_pickle_with_bucket(self):
"""
Test that the storage can be pickled with a bucket attached
"""
# Ensure the bucket has been used
self.storage.bucket
self.assertIsNotNone(self.storage._bucket)
# Can't pickle MagicMock, but you can't pickle a real Bucket object either
p = pickle.dumps(self.storage)
new_storage = pickle.loads(p)
self.assertIsInstance(new_storage._connections, threading.local)
# Put the mock connection back in
new_storage._connections.connection = mock.MagicMock()
self.assertIsNone(new_storage._bucket)
new_storage.bucket
self.assertIsNotNone(new_storage._bucket)
def test_pickle_without_bucket(self):
"""
Test that the storage can be pickled, without a bucket instance
"""
# Can't pickle a threadlocal
p = pickle.dumps(self.storage)
new_storage = pickle.loads(p)
self.assertIsInstance(new_storage._connections, threading.local)
def test_storage_url_slashes(self):
"""
Test URL generation.
"""
self.storage.custom_domain = 'example.com'
# We expect no leading slashes in the path,
# and trailing slashes should be preserved.
self.assertEqual(self.storage.url(''), 'https://example.com/')
self.assertEqual(self.storage.url('path'), 'https://example.com/path')
self.assertEqual(self.storage.url('path/'), 'https://example.com/path/')
self.assertEqual(self.storage.url('path/1'), 'https://example.com/path/1')
self.assertEqual(self.storage.url('path/1/'), 'https://example.com/path/1/')
def test_storage_save(self):
"""
Test saving a file
"""
name = 'test_storage_save.txt'
content = ContentFile('new content')
self.storage.save(name, content)
self.storage.bucket.Object.assert_called_once_with(name)
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
content,
ExtraArgs={
'ContentType': 'text/plain',
}
)
def test_storage_save_with_default_acl(self):
"""
Test saving a file with user defined ACL.
"""
name = 'test_storage_save.txt'
content = ContentFile('new content')
self.storage.default_acl = 'private'
self.storage.save(name, content)
self.storage.bucket.Object.assert_called_once_with(name)
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
content,
ExtraArgs={
'ContentType': 'text/plain',
'ACL': 'private',
}
)
def test_storage_object_parameters_not_overwritten_by_default(self):
"""
Test saving a file with user defined ACL.
"""
name = 'test_storage_save.txt'
content = ContentFile('new content')
self.storage.default_acl = 'public-read'
self.storage.object_parameters = {'ACL': 'private'}
self.storage.save(name, content)
self.storage.bucket.Object.assert_called_once_with(name)
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
content,
ExtraArgs={
'ContentType': 'text/plain',
'ACL': 'private',
}
)
def test_content_type(self):
"""
Test saving a file with a None content type.
"""
name = 'test_image.jpg'
content = ContentFile('data')
content.content_type = None
self.storage.save(name, content)
self.storage.bucket.Object.assert_called_once_with(name)
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
content,
ExtraArgs={
'ContentType': 'image/jpeg',
}
)
def test_storage_save_gzipped(self):
"""
Test saving a gzipped file
"""
name = 'test_storage_save.gz'
content = ContentFile("I am gzip'd")
self.storage.save(name, content)
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
content,
ExtraArgs={
'ContentType': 'application/octet-stream',
'ContentEncoding': 'gzip',
}
)
def test_storage_save_gzip(self):
"""
Test saving a file with gzip enabled.
"""
self.storage.gzip = True
name = 'test_storage_save.css'
content = ContentFile("I should be gzip'd")
self.storage.save(name, content)
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
mock.ANY,
ExtraArgs={
'ContentType': 'text/css',
'ContentEncoding': 'gzip',
}
)
args, kwargs = obj.upload_fileobj.call_args
content = args[0]
zfile = gzip.GzipFile(mode='rb', fileobj=content)
self.assertEqual(zfile.read(), b"I should be gzip'd")
def test_storage_save_gzip_twice(self):
"""
Test saving the same file content twice with gzip enabled.
"""
# Given
self.storage.gzip = True
name = 'test_storage_save.css'
content = ContentFile("I should be gzip'd")
# When
self.storage.save(name, content)
self.storage.save('test_storage_save_2.css', content)
# Then
obj = self.storage.bucket.Object.return_value
obj.upload_fileobj.assert_called_with(
mock.ANY,
ExtraArgs={
'ContentType': 'text/css',
'ContentEncoding': 'gzip',
}
)
args, kwargs = obj.upload_fileobj.call_args
content = args[0]
zfile = gzip.GzipFile(mode='rb', fileobj=content)
self.assertEqual(zfile.read(), b"I should be gzip'd")
def test_compress_content_len(self):
"""
Test that file returned by _compress_content() is readable.
"""
self.storage.gzip = True
content = ContentFile("I should be gzip'd")
content = self.storage._compress_content(content)
self.assertTrue(len(content.read()) > 0)
def test_storage_open_read_string(self):
"""
Test opening a file in "r" mode (ie reading as string, not bytes)
"""
name = 'test_open_read_string.txt'
content_str = self.storage.open(name, "r").read()
self.assertEqual(content_str, "")
def test_storage_open_write(self):
"""
Test opening a file in write mode
"""
name = 'test_open_for_writïng.txt'
content = 'new content'
# Set the encryption flag used for multipart uploads
self.storage.object_parameters = {
'ServerSideEncryption': 'AES256',
'StorageClass': 'REDUCED_REDUNDANCY',
'ACL': 'public-read',
}
file = self.storage.open(name, 'w')
self.storage.bucket.Object.assert_called_with(name)
obj = self.storage.bucket.Object.return_value
# Set the name of the mock object
obj.key = name
file.write(content)
obj.initiate_multipart_upload.assert_called_with(
ACL='public-read',
ContentType='text/plain',
ServerSideEncryption='AES256',
StorageClass='REDUCED_REDUNDANCY'
)
# Save the internal file before closing
multipart = obj.initiate_multipart_upload.return_value
multipart.parts.all.return_value = [mock.MagicMock(e_tag='123', part_number=1)]
file.close()
multipart.Part.assert_called_with(1)
part = multipart.Part.return_value
part.upload.assert_called_with(Body=content.encode())
multipart.complete.assert_called_once_with(
MultipartUpload={'Parts': [{'ETag': '123', 'PartNumber': 1}]})
def test_write_bytearray(self):
"""Test that bytearray write exactly (no extra "bytearray" from stringify)."""
name = "saved_file.bin"
content = bytearray(b"content")
file = self.storage.open(name, "wb")
obj = self.storage.bucket.Object.return_value
# Set the name of the mock object
obj.key = name
bytes_written = file.write(content)
self.assertEqual(len(content), bytes_written)
def test_storage_open_no_write(self):
"""
Test opening file in write mode and closing without writing.
A file should be created as by obj.put(...).
"""
name = 'test_open_no_write.txt'
# Set the encryption flag used for puts
self.storage.object_parameters = {
'ServerSideEncryption': 'AES256',
'StorageClass': 'REDUCED_REDUNDANCY',
}
file = self.storage.open(name, 'w')
self.storage.bucket.Object.assert_called_with(name)
obj = self.storage.bucket.Object.return_value
obj.load.side_effect = ClientError({'Error': {},
'ResponseMetadata': {'HTTPStatusCode': 404}},
'head_bucket')
# Set the name of the mock object
obj.key = name
# Save the internal file before closing
file.close()
obj.load.assert_called_once_with()
obj.put.assert_called_once_with(
Body=b"",
ContentType='text/plain',
ServerSideEncryption='AES256',
StorageClass='REDUCED_REDUNDANCY'
)
def test_storage_open_no_overwrite_existing(self):
"""
Test opening an existing file in write mode and closing without writing.
"""
name = 'test_open_no_overwrite_existing.txt'
# Set the encryption flag used for puts
self.storage.object_parameters = {
'ServerSideEncryption': 'AES256',
'StorageClass': 'REDUCED_REDUNDANCY',
}
file = self.storage.open(name, 'w')
self.storage.bucket.Object.assert_called_with(name)
obj = self.storage.bucket.Object.return_value
# Set the name of the mock object
obj.key = name
# Save the internal file before closing
file.close()
obj.load.assert_called_once_with()
obj.put.assert_not_called()
def test_storage_write_beyond_buffer_size(self):
"""
Test writing content that exceeds the buffer size
"""
name = 'test_open_for_writïng_beyond_buffer_size.txt'
# Set the encryption flag used for multipart uploads
self.storage.object_parameters = {
'ServerSideEncryption': 'AES256',
'StorageClass': 'REDUCED_REDUNDANCY',
}
file = self.storage.open(name, 'w')
self.storage.bucket.Object.assert_called_with(name)
obj = self.storage.bucket.Object.return_value
# Set the name of the mock object
obj.key = name
# Initiate the multipart upload
file.write('')
obj.initiate_multipart_upload.assert_called_with(
ContentType='text/plain',
ServerSideEncryption='AES256',
StorageClass='REDUCED_REDUNDANCY'
)
multipart = obj.initiate_multipart_upload.return_value
# Write content at least twice as long as the buffer size
written_content = ''
counter = 1
while len(written_content) < 2 * file.buffer_size:
content = 'hello, aws {counter}\n'.format(counter=counter)
# Write more than just a few bytes in each iteration to keep the
# test reasonably fast
content += '*' * int(file.buffer_size / 10)
file.write(content)
written_content += content
counter += 1
# Save the internal file before closing
multipart.parts.all.return_value = [
mock.MagicMock(e_tag='123', part_number=1),
mock.MagicMock(e_tag='456', part_number=2)
]
file.close()
self.assertListEqual(
multipart.Part.call_args_list,
[mock.call(1), mock.call(2)]
)
part = multipart.Part.return_value
uploaded_content = ''.join(
args_list[1]['Body'].decode()
for args_list in part.upload.call_args_list
)
self.assertEqual(uploaded_content, written_content)
multipart.complete.assert_called_once_with(
MultipartUpload={'Parts': [
{'ETag': '123', 'PartNumber': 1},
{'ETag': '456', 'PartNumber': 2},
]}
)
def test_storage_exists(self):
self.assertTrue(self.storage.exists("file.txt"))
self.storage.connection.meta.client.head_object.assert_called_with(
Bucket=self.storage.bucket_name,
Key="file.txt",
)
def test_storage_exists_false(self):
self.storage.connection.meta.client.head_object.side_effect = ClientError(
{'Error': {'Code': '404', 'Message': 'Not Found'}},
'HeadObject',
)
self.assertFalse(self.storage.exists("file.txt"))
self.storage.connection.meta.client.head_object.assert_called_with(
Bucket=self.storage.bucket_name,
Key='file.txt',
)
def test_storage_delete(self):
self.storage.delete("path/to/file.txt")
self.storage.bucket.Object.assert_called_with('path/to/file.txt')
self.storage.bucket.Object.return_value.delete.assert_called_with()
def test_storage_listdir_base(self):
# Files:
# some/path/1.txt
# 2.txt
# other/path/3.txt
# 4.txt
pages = [
{
'CommonPrefixes': [
{'Prefix': 'some'},
{'Prefix': 'other'},
],
'Contents': [
{'Key': '2.txt'},
{'Key': '4.txt'},
],
},
]
paginator = mock.MagicMock()
paginator.paginate.return_value = pages
self.storage._connections.connection.meta.client.get_paginator.return_value = paginator
dirs, files = self.storage.listdir('')
paginator.paginate.assert_called_with(Bucket=None, Delimiter='/', Prefix='')
self.assertEqual(dirs, ['some', 'other'])
self.assertEqual(files, ['2.txt', '4.txt'])
def test_storage_listdir_subdir(self):
# Files:
# some/path/1.txt
# some/2.txt
pages = [
{
'CommonPrefixes': [
{'Prefix': 'some/path'},
],
'Contents': [
{'Key': 'some/2.txt'},
],
},
]
paginator = mock.MagicMock()
paginator.paginate.return_value = pages
self.storage._connections.connection.meta.client.get_paginator.return_value = paginator
dirs, files = self.storage.listdir('some/')
paginator.paginate.assert_called_with(Bucket=None, Delimiter='/', Prefix='some/')
self.assertEqual(dirs, ['path'])
self.assertEqual(files, ['2.txt'])
def test_storage_size(self):
obj = self.storage.bucket.Object.return_value
obj.content_length = 4098
name = 'file.txt'
self.assertEqual(self.storage.size(name), obj.content_length)
def test_storage_mtime(self):
# Test both USE_TZ cases
for use_tz in (True, False):
with self.settings(USE_TZ=use_tz):
self._test_storage_mtime(use_tz)
def _test_storage_mtime(self, use_tz):
obj = self.storage.bucket.Object.return_value
obj.last_modified = datetime.now(utc)
name = 'file.txt'
self.assertFalse(
is_aware(self.storage.modified_time(name)),
'Naive datetime object expected from modified_time()'
)
self.assertIs(
settings.USE_TZ,
is_aware(self.storage.get_modified_time(name)),
'{} datetime object expected from get_modified_time() when USE_TZ={}'.format(
('Naive', 'Aware')[settings.USE_TZ],
settings.USE_TZ
)
)
def test_storage_url(self):
name = 'test_storage_size.txt'
url = 'http://aws.amazon.com/%s' % name
self.storage.bucket.meta.client.generate_presigned_url.return_value = url
self.storage.bucket.name = 'bucket'
self.assertEqual(self.storage.url(name), url)
self.storage.bucket.meta.client.generate_presigned_url.assert_called_with(
'get_object',
Params={'Bucket': self.storage.bucket.name, 'Key': name},
ExpiresIn=self.storage.querystring_expire,
HttpMethod=None,
)
custom_expire = 123
self.assertEqual(self.storage.url(name, expire=custom_expire), url)
self.storage.bucket.meta.client.generate_presigned_url.assert_called_with(
'get_object',
Params={'Bucket': self.storage.bucket.name, 'Key': name},
ExpiresIn=custom_expire,
HttpMethod=None,
)
custom_method = 'HEAD'
self.assertEqual(self.storage.url(name, http_method=custom_method), url)
self.storage.bucket.meta.client.generate_presigned_url.assert_called_with(
'get_object',
Params={'Bucket': self.storage.bucket.name, 'Key': name},
ExpiresIn=self.storage.querystring_expire,
HttpMethod=custom_method,
)
def test_storage_url_custom_domain_signed_urls(self):
key_id = 'test-key'
filename = 'file.txt'
pem = dedent(
'''\
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----'''
).encode('ascii')
url = 'https://mock.cloudfront.net/file.txt'
signed_url = url + '?Expires=3600&Signature=DbqVgh3FHtttQxof214tSAVE8Nqn3Q4Ii7eR3iykbOqAPbV89HC3EB~0CWxarpLNtbfosS5LxiP5EutriM7E8uR4Gm~UVY-PFUjPcwqdnmAiKJF0EVs7koJcMR8MKDStuWfFKVUPJ8H7ORYTOrixyHBV2NOrpI6SN5UX6ctNM50_&Key-Pair-Id=test-key' # noqa
self.storage.custom_domain = "mock.cloudfront.net"
for pem_to_signer in (
s3boto3._use_cryptography_signer(),
s3boto3._use_rsa_signer()):
self.storage.cloudfront_signer = pem_to_signer(key_id, pem)
self.storage.querystring_auth = False
self.assertEqual(self.storage.url(filename), url)
self.storage.querystring_auth = True
with mock.patch('storages.backends.s3boto3.datetime') as mock_datetime:
mock_datetime.utcnow.return_value = datetime.utcfromtimestamp(0)
self.assertEqual(self.storage.url(filename), signed_url)
def test_generated_url_is_encoded(self):
self.storage.custom_domain = "mock.cloudfront.net"
filename = "whacky & filename.mp4"
url = self.storage.url(filename)
parsed_url = urlparse(url)
self.assertEqual(parsed_url.path,
"/whacky%20%26%20filename.mp4")
self.assertFalse(self.storage.bucket.meta.client.generate_presigned_url.called)
def test_special_characters(self):
self.storage.custom_domain = "mock.cloudfront.net"
name = "ãlöhâ.jpg"
content = ContentFile('new content')
self.storage.save(name, content)
self.storage.bucket.Object.assert_called_once_with(name)
url = self.storage.url(name)
parsed_url = urlparse(url)
self.assertEqual(parsed_url.path, "/%C3%A3l%C3%B6h%C3%A2.jpg")
def test_strip_signing_parameters(self):
expected = 'http://bucket.s3-aws-region.amazonaws.com/foo/bar'
self.assertEqual(self.storage._strip_signing_parameters(
'%s?X-Amz-Date=12345678&X-Amz-Signature=Signature' % expected), expected)
self.assertEqual(self.storage._strip_signing_parameters(
'%s?expires=12345678&signature=Signature' % expected), expected)
@skipIf(threading is None, 'Test requires threading')
def test_connection_threading(self):
connections = []
def thread_storage_connection():
connections.append(self.storage.connection)
for x in range(2):
t = threading.Thread(target=thread_storage_connection)
t.start()
t.join()
# Connection for each thread needs to be unique
self.assertIsNot(connections[0], connections[1])
def test_location_leading_slash(self):
msg = (
"S3Boto3Storage.location cannot begin with a leading slash. "
"Found '/'. Use '' instead."
)
with self.assertRaises(ImproperlyConfigured, msg=msg):
s3boto3.S3Boto3Storage(location='/')
def test_override_settings(self):
with override_settings(AWS_LOCATION='foo1'):
storage = s3boto3.S3Boto3Storage()
self.assertEqual(storage.location, 'foo1')
with override_settings(AWS_LOCATION='foo2'):
storage = s3boto3.S3Boto3Storage()
self.assertEqual(storage.location, 'foo2')
def test_override_class_variable(self):
class MyStorage1(s3boto3.S3Boto3Storage):
location = 'foo1'
storage = MyStorage1()
self.assertEqual(storage.location, 'foo1')
class MyStorage2(s3boto3.S3Boto3Storage):
location = 'foo2'
storage = MyStorage2()
self.assertEqual(storage.location, 'foo2')
def test_override_init_argument(self):
storage = s3boto3.S3Boto3Storage(location='foo1')
self.assertEqual(storage.location, 'foo1')
storage = s3boto3.S3Boto3Storage(location='foo2')
self.assertEqual(storage.location, 'foo2')