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53 lines
1.4 KiB
53 lines
1.4 KiB
'use strict'; |
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var utils = require('./../utils'); |
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// Headers whose duplicates are ignored by node |
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// c.f. https://nodejs.org/api/http.html#http_message_headers |
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var ignoreDuplicateOf = [ |
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'age', 'authorization', 'content-length', 'content-type', 'etag', |
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'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since', |
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'last-modified', 'location', 'max-forwards', 'proxy-authorization', |
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'referer', 'retry-after', 'user-agent' |
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]; |
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/** |
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* Parse headers into an object |
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* |
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* ``` |
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* Date: Wed, 27 Aug 2014 08:58:49 GMT |
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* Content-Type: application/json |
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* Connection: keep-alive |
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* Transfer-Encoding: chunked |
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* ``` |
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* |
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* @param {String} headers Headers needing to be parsed |
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* @returns {Object} Headers parsed into an object |
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*/ |
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module.exports = function parseHeaders(headers) { |
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var parsed = {}; |
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var key; |
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var val; |
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var i; |
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if (!headers) { return parsed; } |
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utils.forEach(headers.split('\n'), function parser(line) { |
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i = line.indexOf(':'); |
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key = utils.trim(line.substr(0, i)).toLowerCase(); |
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val = utils.trim(line.substr(i + 1)); |
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if (key) { |
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if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) { |
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return; |
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} |
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if (key === 'set-cookie') { |
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parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]); |
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} else { |
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parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val; |
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} |
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} |
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}); |
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return parsed; |
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};
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