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✍️ Editing: index.js

            File: /usr/lib/node_modules/npm/node_modules/decode-uri-component/index.js

            Size: 2.17 KB | 
            Last Modified: 2021-03-10 21:36:39        

'use strict';
var token = '%[a-f0-9]{2}';
var singleMatcher = new RegExp(token, 'gi');
var multiMatcher = new RegExp('(' + token + ')+', 'gi');

function decodeComponents(components, split) {
	try {
		// Try to decode the entire string first
		return decodeURIComponent(components.join(''));
	} catch (err) {
		// Do nothing
	}

if (components.length === 1) {
		return components;
	}

split = split || 1;

// Split the array in 2 parts
	var left = components.slice(0, split);
	var right = components.slice(split);

return Array.prototype.concat.call([], decodeComponents(left), decodeComponents(right));
}

function decode(input) {
	try {
		return decodeURIComponent(input);
	} catch (err) {
		var tokens = input.match(singleMatcher);

for (var i = 1; i < tokens.length; i++) {
			input = decodeComponents(tokens, i).join('');

tokens = input.match(singleMatcher);
		}

return input;
	}
}

function customDecodeURIComponent(input) {
	// Keep track of all the replacements and prefill the map with the `BOM`
	var replaceMap = {
		'%FE%FF': '\uFFFD\uFFFD',
		'%FF%FE': '\uFFFD\uFFFD'
	};

var match = multiMatcher.exec(input);
	while (match) {
		try {
			// Decode as big chunks as possible
			replaceMap[match[0]] = decodeURIComponent(match[0]);
		} catch (err) {
			var result = decode(match[0]);

if (result !== match[0]) {
				replaceMap[match[0]] = result;
			}
		}

match = multiMatcher.exec(input);
	}

// Add `%C2` at the end of the map to make sure it does not replace the combinator before everything else
	replaceMap['%C2'] = '\uFFFD';

var entries = Object.keys(replaceMap);

for (var i = 0; i < entries.length; i++) {
		// Replace all decoded components
		var key = entries[i];
		input = input.replace(new RegExp(key, 'g'), replaceMap[key]);
	}

return input;
}

module.exports = function (encodedURI) {
	if (typeof encodedURI !== 'string') {
		throw new TypeError('Expected `encodedURI` to be of type `string`, got `' + typeof encodedURI + '`');
	}

try {
		encodedURI = encodedURI.replace(/\+/g, ' ');

// Try the built in decoder first
		return decodeURIComponent(encodedURI);
	} catch (err) {
		// Fallback to a more advanced decoder
		return customDecodeURIComponent(encodedURI);
	}
};

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