Strip a local part of a domain and language identifier from a path

Extract a unique and language-independent part of a URL, e.g.

let { normalizeUrl } = require('normalize-url-lang');

normalizeUrl(publicSuffixData, 'https://www.avast.com/en-US/index.html?q=avast');
 -> https://avast.com/index.html

Stripped parts can be replaced by a wildcard and use for URL comparison:

let { matchUrl } = require('normalize-url-lang/match');

normalizeUrl(publicSuffixData, 'https://www.avast.com/en-US/index.html?q=avast', '*');
 -> https://*avast.com/*/index.html

matchUrl('https://avast.com/de-DE/index.html', 'https://*avast.com/*/index.html', '*');
 -> true

publicsuffix.org is used to distinguish local and public parts of a domain. The data has about 160 kB. This can either be loaded in runtime by

let { load } = require('normalize-url-lang/publicsuffix');

load().then(publicSuffixData => ...)

or include the ones generated at install in your package:

let publicSuffixData = require('normalize-url-lang/publicsuffix.json');

Alternatives: tld

API

normalizeUrl(suffixData, url, wildcard)

• suffixData: data obtained by require('normalize-url-lang/publicsuffix.json') or require('normalize-url-lang/publicsuffix').load()
• url: URL string or parsed URL in a Location format
• wildcard (optional): if present, stripped domain + path parts will be marked by the wildcard
• return URL string with all mutable parts removed ('www', language codes, session id, query, fragment)

import { normalizeUrl } from 'normalize-url-lang';

Example:

normalizeUrl(suffixData, 'http://www.example.com/en_us/search.html?q=abc')
  -> http://example.com/search.html

normalizeUrl(suffixData, {
    protocol: 'http:',
    host: 'www.example.com',
    pathname: '/en_us/search.html',
    search: '?q=abc',
    ...
  }, '*')
  -> http://*example.com/*/search.html

stripDomain(suffixData, domain, wildcard)

• suffixData: data obtained by require('normalize-url-lang/publicsuffix.json') or require('normalize-url-lang/publicsuffix').load()
• domain: full domain name
• wildcard (optional): if present, stripped parts will be marked by the wildcard
• return domain stripped from left by publicsuffix.org data

import { stripDomain } from 'normalize-url-lang';

Example:

stripDomain(suffixData, 'www.example.com', '*')
  -> *example.com

stripDomain(suffixData, 'www.example.com')
  -> example.com

stripPath(path, wildcard)

• path: plain URL path, no query strings, no fragments
• wildcard (optional): if present, stripped parts will be marked by the wildcard
• return path with language parts removed

import { stripPath } from 'normalize-url-lang';

Example:

stripPath('/de/index.html', '*')
  -> /*/index.html

stripPath('/pt/pt-BR/index.html')
  -> /index.html

matchUrl(url, wildcardUrl, wildcard)

• url, wildcardUrl: URLs to compare
• wildcard: wildcard used in wilcardUrl; default: '*'
• return true / false

import { matchUrl } from 'normalize-url-lang/match';

Example:

matchUrl('https://www.abc.example.com/de/de-ch/index.html;jsessionid=abcd', 'https://*example.com/*/*/index.html')
  -> true

matchPath(pathName, wildcardPathName, wildcard)

• pathName, wildcardPathName: URL paths to compare
• wildcard: wildcard used in wildcardPathName
• return true / false

import { matchPath } from 'normalize-url-lang/match';

Example:

matchPath('/de/index.de-ch.html', '/*/index.*.html')
  -> true

parseUrl(url)

• url: string or a Location-compatible object
• return Location-compatible object with pathname trimmed from the leftmost invalid character (any of !$&'(),;=:@?#)

import { parseUrl } from 'normalize-url-lang/url';

Example:

parseUrl('https://www.bank.cy/IBS/ControllerServlet;jsessionid=0001_9xUJ:VLQ0B')
  -> { protocol: 'https:', hostname: 'www.bank.cy', pathname: '/IBS/ControllerServlet' }