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html-version

v1.1.2

Published

parse and modify html versions according to the html version spec

Downloads

25

Vulnerabilities

Powered byPowered by Snyk
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  • 0Medium
  • 0Low

Links

Git

Maintainers

nopersonsmodulesnopersonsmodules

Keywords

htmlversionofflinepermanentmerkleDAGwebapp

Readme

html-version

parse and modify html file versions according to the html version spec

example

parse

var fs = require('fs')
var versions = require('html-version')

fs.readFile(__dirname + '/page.html', function (err, src) {
  console.log(versions.parse(src))
})

output:

{ integrity: 
   { 'https://example.com/versions/1.0.0.html': [ 'sha256-mPjSxFzbBSy+LyCVyylIf5E/7zswbvsL4D/qxCAqrjY' ],
     'https://example.com/versions/1.0.1.html': [ 'sha256-Qra3bKdpoprvRqkTF96gWOa0dPkA8MHYxOJqVsvkzIY=' ],
     'https://example.com/versions/1.1.0.html': [ 'sha256-9VGwnCJuLbwo/N+TL1Ia9whqP8kVwEO8K0IFTUQk19o=' ] },
  version: '1.2.0',
  versions: 
   { '1.0.0': 
      [ 'https://example.com/versions/1.0.0.html',
        'magnet:?xt=urn:btih:4822271aa656ba6913a14edb117d3c4dc50f1209' ],
     '1.0.1': 
      [ 'https://example.com/versions/1.0.1.html',
        'ipfs:QmNcojAWDNwf1RZsPsG2ABvK4FVs7yq4iwSrKaMdPwV3Sh',
        'magnet:?xt=urn:btih:d0320ebba035cc86526baae771da14912895e113' ],
     '1.1.0': 
      [ 'https://example.com/versions/1.1.0.html',
        'ipfs:QmWMey8Dd1ZH9XWRP3d7N1oSoL35uou1GSMpBwt4UahFSD' ] },
  signature: [ 'https://example.com/versions/1.2.0.html.sig' ],
  latest: 
   [ 'https://example.com/versions/latest.html',
     'ipns:QmWJ9zRgvEvdzBPm1pshDqqFKqMXRJoHDQ4nuocHYS2REk',
     'magnet:?xt=urn:btih:4a533d47ec9c7d95b1ad75f576cffc641853b750' ],
  predecessor: 
   [ 'https://example.com/versions/1.1.0.html',
     'ipfs:QmWMey8Dd1ZH9XWRP3d7N1oSoL35uou1GSMpBwt4UahFSD' ] }

upgrade

var fs = require('fs')
var versions = require('html-version')

var prev = fs.readFileSync(__dirname + '/page.html')
var src = fs.readFileSync(__dirname + '/src.html')
var loc = [
  'https://example.com/versions/1.2.0.html',
  'ipfs:QmSguVEXZRRtDCRm3XGjvTQNnLHWkgowoFJ9jpCp5kEMEB'
]
console.log(versions.update(src, loc, versions.parse(prev)))

output:

<html>
  <head>
    <meta name="version" content="1.2.1">
    <link rel="version" href="https://example.com/versions/1.0.0.html" version="1.0.0" integrity="sha256-mPjSxFzbBSy+LyCVyylIf5E/7zswbvsL4D/qxCAqrjY">
    <link rel="version" href="magnet:?xt=urn:btih:4822271aa656ba6913a14edb117d3c4dc50f1209" version="1.0.0">
    <link rel="version" href="https://example.com/versions/1.0.1.html" version="1.0.1" integrity="sha256-Qra3bKdpoprvRqkTF96gWOa0dPkA8MHYxOJqVsvkzIY=">
    <link rel="version" href="ipfs:QmNcojAWDNwf1RZsPsG2ABvK4FVs7yq4iwSrKaMdPwV3Sh" version="1.0.1">
    <link rel="version" href="magnet:?xt=urn:btih:d0320ebba035cc86526baae771da14912895e113" version="1.0.1">
    <link rel="version" href="https://example.com/versions/1.1.0.html" version="1.1.0" integrity="sha256-9VGwnCJuLbwo/N+TL1Ia9whqP8kVwEO8K0IFTUQk19o=">
    <link rel="version" href="ipfs:QmWMey8Dd1ZH9XWRP3d7N1oSoL35uou1GSMpBwt4UahFSD" version="1.1.0">
    <link rel="version" href="https://example.com/versions/1.2.0.html" version="1.2.0">
    <link rel="version" href="ipfs:QmSguVEXZRRtDCRm3XGjvTQNnLHWkgowoFJ9jpCp5kEMEB" version="1.2.0">
    <link rel="latest-version" href="https://example.com/versions/latest.html">
    <link rel="latest-version" href="ipns:QmWJ9zRgvEvdzBPm1pshDqqFKqMXRJoHDQ4nuocHYS2REk">
    <link rel="latest-version" href="magnet:?xt=urn:btih:4a533d47ec9c7d95b1ad75f576cffc641853b750">
    <link rel="predecessor-version" href="https://example.com/versions/1.2.0.html">
    <link rel="predecessor-version" href="ipfs:QmSguVEXZRRtDCRm3XGjvTQNnLHWkgowoFJ9jpCp5kEMEB">
  </head>
  <body>
    whatever
  </body>
</html>

api

var versions = require('html-version')

var info = versions.parse(html)

Parse a string of html into an object info:

  • info.version - the <meta name="version"> contents
  • info.versions - an object mapping semver version strings to arrays of URLs
  • info.integrity - an object mapping URLs to arrays of integrity strings
  • info.signature - an array of signature URLs
  • info.latest - an array of latest version URLs
  • info.predecessor - an array of predecessor version URLs

var html = versions.meta(info)

Return meta and link tags in an html string for info, a parsed version object.

var html = versions.update(src, loc, prevInfo)

Update src with new meta and link tags that add to the previous version metadata.

Return a string of html for a current html string src, the location of the previous document as an array of URLs loc, and prevInfo, the parsed version info for the previous html.

thanks

Thanks to blockai for sponsoring this project.

license

MIT