sri

SRI

SRI is a cli tool to create sub resource integrity hashes of a resource file.

Usage

sri [OPTION] [<url1> <url2> ... <urlN>]

Options

• -sha256 Use sha256 as hash function
• -sha384 Use sha384 as hash function (default)
• -sha512 Use sha512 as hash function

Sri also accepts URLs from stdin.

See sri -h for help.

Examples

$ sri https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js

Returns:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js" integrity="sha384-tsQFqpEReu7ZLhBV2VZlAu7zcOV+rXbYlF2cqB8txI/8aZajjp4Bqd+V6D5IgvKT" crossorigin="anonymous"></script>

$ sri -sha512 https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css

Returns:
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha512-tDXPcamuZsWWd6OsKFyH6nAqh/MjZ/5Yk88T5o+aMfygqNFPan1pLyPFAndRzmOWHKT+jSDzWpJv8krj6x1LMA==" crossorigin="anonymous">

Building

Install the dependencies:

• go (>=1.15)

Then compile sri:

$ make

Installation

$ make install

By default sri will be installed under /usr/local/bin/