metascraper-publisher/src/index.js

Get publisher property from HTML markup

'use strict'

const { $filter, $jsonld, publisher, toRule } = require('@metascraper/helpers')

const REGEX_TITLE = /^.*?[-|]\s+(.*)$/

const toPublisher = toRule(publisher)

const getFromTitle = (text, regex = REGEX_TITLE) => {
  const matches = regex.exec(text)
  if (!matches) return false
  let result = matches[1]
  while (regex.test(result)) result = regex.exec(result)[1]
  return result
}

module.exports = () => {
  const rules = {
    publisher: [
      toPublisher($jsonld('publisher.name')),
      toPublisher($ => $('meta[property="og:site_name"]').attr('content')),
      toPublisher($ => $('meta[name*="application-name" i]').attr('content')),
      toPublisher($ => $('meta[name*="app-title" i]').attr('content')),
      toPublisher($ => $('meta[property*="app_name" i]').attr('content')),
      toPublisher($ => $('meta[name="publisher" i]').attr('content')),
      toPublisher($ =>
        $('meta[name="twitter:app:name:iphone"]').attr('content')
      ),
      toPublisher($ =>
        $('meta[property="twitter:app:name:iphone"]').attr('content')
      ),
      toPublisher($ => $('meta[name="twitter:app:name:ipad"]').attr('content')),
      toPublisher($ =>
        $('meta[property="twitter:app:name:ipad"]').attr('content')
      ),
      toPublisher($ =>
        $('meta[name="twitter:app:name:googleplay"]').attr('content')
      ),
      toPublisher($ =>
        $('meta[property="twitter:app:name:googleplay"]').attr('content')
      ),
      toPublisher($ => $filter($, $('#logo'))),
      toPublisher($ => $filter($, $('.logo'))),
      toPublisher($ => $filter($, $('a[class*="brand" i]'))),
      toPublisher($ => $('[class*="logo" i] a img[alt]').attr('alt')),
      toPublisher($ => $('[class*="logo" i] img[alt]').attr('alt')),
      toPublisher($ =>
        $filter($, $('title'), el => getFromTitle($filter.fn(el)))
      )
    ]
  }

  rules.pkgName = 'metascraper-publisher'

  return rules
}

module.exports.getFromTitle = getFromTitle