You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
77 lines
2.2 KiB
77 lines
2.2 KiB
# -*- coding: utf-8 -*- |
|
from __future__ import unicode_literals |
|
# Erik Stein <code@classlibrary.net>, 2016 |
|
|
|
import os |
|
import warnings |
|
|
|
from django.core.files.storage import FileSystemStorage |
|
from django.conf import settings |
|
from django.utils._os import safe_join |
|
from django.utils.deconstruct import deconstructible |
|
from django.utils.encoding import filepath_to_uri |
|
from django.utils.six.moves.urllib.parse import urljoin |
|
|
|
|
|
__all__ = ('MediaAssetStorage',) |
|
|
|
|
|
ORIGINAL_FILE_PREFIX = 'original' |
|
CACHED_VARIANT_PREFIX = 'cache' |
|
MANUAL_VARIANT_PREFIX = 'manual' |
|
|
|
|
|
""" |
|
Storage setup: |
|
|
|
/<asset_uuid>/original/filename.ext |
|
/cache/<format_slug>/<hash>.<variant_ext> |
|
/manual/<format_slug>/<hash>.<variant_ext> |
|
|
|
TODO Add snapshot (versioning) to path after asset_uuid. |
|
|
|
""" |
|
|
|
|
|
class BaseVariantSubStorage(FileSystemStorage): |
|
def delete(self, parent_storage, name): |
|
""" |
|
Deletes the whole storage path |
|
""" |
|
raise NotImplemented |
|
|
|
|
|
@deconstructible |
|
class MediaAssetStorage(FileSystemStorage): |
|
""" |
|
Standard media assets filesystem storage |
|
""" |
|
|
|
def __init__(self, location=None, base_url=None, file_permissions_mode=None, |
|
directory_permissions_mode=None): |
|
if location is None: |
|
location = getattr(settings, 'MEDIA_ASSETS_ROOT', settings.MEDIA_ROOT) |
|
if base_url is None: |
|
base_url = getattr(settings, 'MEDIA_ASSETS_URL', settings.MEDIA_URL) |
|
if not base_url.endswith('/'): |
|
base_url += '/' |
|
super(MediaAssetStorage, self).__init__(self) |
|
|
|
def delete(self, name): |
|
super(MediaAssetStorage, self).delete(name) |
|
# FIXME Delete all cached files, too |
|
warnings.warn("Cached files for asset \"%s\" are not deleted." % name) |
|
|
|
def path(self, name): |
|
""" |
|
`name` must already contain the whole asset filesystem path. |
|
""" |
|
return safe_join(self.location, ORIGINAL_FILE_PREFIX, name) |
|
|
|
def size(self, name): |
|
return os.path.getsize(self.path(name)) |
|
|
|
def url(self, name): |
|
if self.base_url is None: |
|
raise ValueError("This file is not accessible via a URL.") |
|
return urljoin(self.base_url, ORIGINAL_FILE_PREFIX, filepath_to_uri(name))
|
|
|