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30 lines
1.1 KiB
Markdown
Executable File
30 lines
1.1 KiB
Markdown
Executable File
---
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title: Fingerprinting and SRI
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description: Hugo Pipes allows Fingerprinting and Subresource Integrity.
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date: 2018-07-14
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publishdate: 2018-07-14
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lastmod: 2018-07-14
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categories: [asset management]
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keywords: []
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menu:
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docs:
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parent: "pipes"
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weight: 70
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weight: 70
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sections_weight: 70
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draft: false
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---
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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 a [hash function](https://en.wikipedia.org/wiki/Cryptographic_hash_function).
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The default hash function is `sha256`. Other available functions are `sha384` (from Hugo `0.55`), `sha512` and `md5`.
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Any so processed asset will bear a `.Data.Integrity` property containing an integrity string, which is made up of the name of the hash function, one hyphen and the base64-encoded hash sum.
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```go-html-template
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{{ $js := resources.Get "js/global.js" }}
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{{ $secureJS := $js | resources.Fingerprint "sha512" }}
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<script type="text/javascript" src="{{ $secureJS.Permalink }}" integrity="{{ $secureJS.Data.Integrity }}"></script>
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```
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