Skip to main content

A Django storage backend that names files by hash value.

Project description

https://travis-ci.org/ecometrica/django-hashedfilenamestorage.svg?branch=master

django-hashedfilenamestorage

A Django storage backend that names files by hash value.

By default, django.core.files.storage.FileSystemStorage deals with conflicting filenames by appending an underscore and a random 7 character alphanumeric string to the file. For instance, if you try to create hello.txt when it already exists, it will rename it as e.g. hello_a12mkj3.txt.

django-hashedfilenamestorage creates hashed filenames, so if you try to create hello.txt with the content Hello world!, it will save it as d3486ae9136e7856bc42212385ea797094475802.txt. Directory names and extensions are preserved, only the root filename is changed. This reduces the number of duplicates stored in the underlying backend, and implies that these files can be served from a static cache that never expires.

Installing

The easiest way to install django-hashedfilenamestorage is to use pip:

pip install django-hashedfilenamestorage

Quick Start

In your Django settings file:

  • Set DEFAULT_FILE_STORAGE to 'django_hashedfilenamestorage.storage.HashedFilenameFileSystemStorage'

This gives you hashed filenames, backed on Django’s FileSystemStorage storage class.

HashedFilenameMetaStorage

You can define a new underlying storage class by using HashedFilenameMetaStorage to wrap it:

from django.core.files.storage import get_storage_class

from django_hashedfilenamestorage.storage import HashedFilenameMetaStorage

HashedFilenameMyStorage = HashedFilenameMetaStorage(
    storage_class=get_storage_class('myapp.storage.MyStorage'),
)

Hashing algorithm

HashedFilenameMetaStorage is meant to generate duplicate filenames for files with identical contents. To do this, it reads the contents of the file and generates a SHA-1 hash of them.

Filenames have their extensions preserved, so it is possible to have duplicate contents on the filesystem, but it is important to help serve files with their proper content types.

Project details


Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Source Distribution

django-hashedfilenamestorage-2.4.1.tar.gz (4.9 kB view details)

Uploaded Source

File details

Details for the file django-hashedfilenamestorage-2.4.1.tar.gz.

File metadata

File hashes

Hashes for django-hashedfilenamestorage-2.4.1.tar.gz
Algorithm Hash digest
SHA256 4714b6c9df6282f8005733e367de41a12a1c623cfc5d0cd171556d765c15ee17
MD5 db3e46cd346ee4879c834a86b855bb84
BLAKE2b-256 0e06937c2e1ff1962b7b9bcdd8adfc320452a0a3c353b2864ba2f696f8638094

See more details on using hashes here.

Provenance

Supported by

AWS AWS Cloud computing and Security Sponsor Datadog Datadog Monitoring Fastly Fastly CDN Google Google Download Analytics Microsoft Microsoft PSF Sponsor Pingdom Pingdom Monitoring Sentry Sentry Error logging StatusPage StatusPage Status page