Files F99403634

parseHeaders.js
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Created: Fri, Jan 24, 06:21

parseHeaders.js
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	'use strict';

	import utils from './../utils.js';

	// RawAxiosHeaders whose duplicates are ignored by node
	// c.f. https://nodejs.org/api/http.html#http_message_headers
	const ignoreDuplicateOf = utils.toObjectSet([
	'age', 'authorization', 'content-length', 'content-type', 'etag',
	'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
	'last-modified', 'location', 'max-forwards', 'proxy-authorization',
	'referer', 'retry-after', 'user-agent'
	]);

	/**
	* Parse headers into an object
	*
	* ```
	* Date: Wed, 27 Aug 2014 08:58:49 GMT
	* Content-Type: application/json
	* Connection: keep-alive
	* Transfer-Encoding: chunked
	* ```
	*
	* @param {String} rawHeaders Headers needing to be parsed
	*
	* @returns {Object} Headers parsed into an object
	*/
	export default rawHeaders => {
	const parsed = {};
	let key;
	let val;
	let i;

	rawHeaders && rawHeaders.split('\n').forEach(function parser(line) {
	i = line.indexOf(':');
	key = line.substring(0, i).trim().toLowerCase();
	val = line.substring(i + 1).trim();

	if (!key \|\| (parsed[key] && ignoreDuplicateOf[key])) {
	return;
	}

	if (key === 'set-cookie') {
	if (parsed[key]) {
	parsed[key].push(val);
	} else {
	parsed[key] = [val];
	}
	} else {
	parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
	}
	});

	return parsed;
	};

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