mirror of
https://github.com/gohugoio/hugo.git
synced 2024-12-01 12:58:54 -05:00
27 lines
1.2 KiB
Markdown
Executable file
27 lines
1.2 KiB
Markdown
Executable file
---
|
|
title: Fingerprint
|
|
linkTitle: Fingerprinting and SRI hashing
|
|
description: Process a given resource, adding a hash string of the resource's content.
|
|
categories: [asset management]
|
|
keywords: []
|
|
menu:
|
|
docs:
|
|
parent: hugo-pipes
|
|
weight: 100
|
|
weight: 100
|
|
signatures: ["resources.Fingerprint RESOURCE [ALGORITHM]", "fingerprint RESOURCE [ALGORITHM]"]
|
|
---
|
|
|
|
## Usage
|
|
|
|
Fingerprinting and [SRI](https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity) can be applied to any asset file using `resources.Fingerprint` which takes two arguments, the resource object and an optional [hash algorithm](https://en.wikipedia.org/wiki/Secure_Hash_Algorithms).
|
|
|
|
The default hash algorithm is `sha256`. Other available algorithms are `sha384` and (as of Hugo `0.55`) `sha512` and `md5`.
|
|
|
|
Any so processed asset will bear a `.Data.Integrity` property containing an integrity string, which is made up of the name of the hash algorithm, one hyphen and the base64-encoded hash sum.
|
|
|
|
```go-html-template
|
|
{{ $js := resources.Get "js/global.js" }}
|
|
{{ $secureJS := $js | resources.Fingerprint "sha512" }}
|
|
<script src="{{ $secureJS.Permalink }}" integrity="{{ $secureJS.Data.Integrity }}"></script>
|
|
```
|