You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
61 lines
1.5 KiB
JavaScript
61 lines
1.5 KiB
JavaScript
6 years ago
|
/*!
|
||
|
|
* encodeurl
|
||
|
|
* Copyright(c) 2016 Douglas Christopher Wilson
|
||
|
|
* MIT Licensed
|
||
|
|
*/
|
||
|
|
|
||
|
|
'use strict'
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Module exports.
|
||
|
|
* @public
|
||
|
|
*/
|
||
|
|
|
||
|
|
module.exports = encodeUrl
|
||
|
|
|
||
|
|
/**
|
||
|
|
* RegExp to match non-URL code points, *after* encoding (i.e. not including "%")
|
||
|
|
* and including invalid escape sequences.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
var ENCODE_CHARS_REGEXP = /(?:[^\x21\x25\x26-\x3B\x3D\x3F-\x5B\x5D\x5F\x61-\x7A\x7E]|%(?:[^0-9A-Fa-f]|[0-9A-Fa-f][^0-9A-Fa-f]|$))+/g
|
||
|
|
|
||
|
|
/**
|
||
|
|
* RegExp to match unmatched surrogate pair.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
var UNMATCHED_SURROGATE_PAIR_REGEXP = /(^|[^\uD800-\uDBFF])[\uDC00-\uDFFF]|[\uD800-\uDBFF]([^\uDC00-\uDFFF]|$)/g
|
||
|
|
|
||
|
|
/**
|
||
|
|
* String to replace unmatched surrogate pair with.
|
||
|
|
* @private
|
||
|
|
*/
|
||
|
|
|
||
|
|
var UNMATCHED_SURROGATE_PAIR_REPLACE = '$1\uFFFD$2'
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Encode a URL to a percent-encoded form, excluding already-encoded sequences.
|
||
|
|
*
|
||
|
|
* This function will take an already-encoded URL and encode all the non-URL
|
||
|
|
* code points. This function will not encode the "%" character unless it is
|
||
|
|
* not part of a valid sequence (`%20` will be left as-is, but `%foo` will
|
||
|
|
* be encoded as `%25foo`).
|
||
|
|
*
|
||
|
|
* This encode is meant to be "safe" and does not throw errors. It will try as
|
||
|
|
* hard as it can to properly encode the given URL, including replacing any raw,
|
||
|
|
* unpaired surrogate pairs with the Unicode replacement character prior to
|
||
|
|
* encoding.
|
||
|
|
*
|
||
|
|
* @param {string} url
|
||
|
|
* @return {string}
|
||
|
|
* @public
|
||
|
|
*/
|
||
|
|
|
||
|
|
function encodeUrl (url) {
|
||
|
|
return String(url)
|
||
|
|
.replace(UNMATCHED_SURROGATE_PAIR_REGEXP, UNMATCHED_SURROGATE_PAIR_REPLACE)
|
||
|
|
.replace(ENCODE_CHARS_REGEXP, encodeURI)
|
||
|
|
}
|