filestack-js
Version:
Official JavaScript library for Filestack
140 lines (138 loc) • 12.5 kB
JavaScript
/*
* Copyright (c) 2018 by Filestack
* Some rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { trim } from './../utils';
var ignoreDuplicates = [
'expires',
'from',
'host',
'if-modified-since',
'if-unmodified-since',
'age',
'authorization',
'content-length',
'content-type',
'etag',
'last-modified',
'location',
'max-forwards',
'proxy-authorization',
'referer',
'retry-after',
'user-agent',
];
/**
* Parse response raw header (xhr)
*
* @param {string} headers - raw headers string
*/
export var parse = function (headers) {
var parsed = {};
var key;
var val;
var i;
if (!headers) {
return parsed;
}
headers.split('\n').forEach(function (line) {
i = line.indexOf(':');
key = trim(line.substr(0, i)).toLowerCase();
val = trim(line.substr(i + 1));
if (!key) {
return;
}
if (parsed[key] && ignoreDuplicates.indexOf(key) >= 0) {
return;
}
if (key === 'set-cookie') {
parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
}
else {
parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
}
});
return parsed;
};
/**
* Normalize input headers
*
* @param headers
*/
export var normalizeHeaders = function (headers) {
if (!headers) {
return {};
}
var toReturn = {};
for (var i in headers) {
toReturn[normalizeName(i)] = headers[i];
}
return toReturn;
};
// expect(set({}, 'set-cookies', 'value')).toEqual({ 'Set-Cookies': 'value' });
/**
* Set request headers
*
* @param headers - object containing headers
* @param name - header name
* @param value - header value
* @param setIFExists - determine if we should change header value if exists
*/
export var set = function (headers, name, value, setIFExists) {
if (setIFExists === void 0) { setIFExists = false; }
var normalizedName = normalizeName(name);
if (!headers) {
headers = {};
}
// cleanup headers from undefined vals
headers = JSON.parse(JSON.stringify(headers));
if (headers[name] === undefined && headers[normalizedName] === undefined) {
headers[normalizedName] = value;
}
else if (setIFExists) {
delete headers[name];
headers[normalizedName] = value;
}
return headers;
};
/**
* Normalize header names according to rfc spec
*
* @param {string} name - header name
*/
export var normalizeName = function (name) {
// the exceptions
var result = {
'content-md5': 'Content-MD5',
dnt: 'DNT',
etag: 'ETag',
'last-event-id': 'Last-Event-ID',
tcn: 'TCN',
te: 'TE',
'www-authenticate': 'WWW-Authenticate',
'x-dnsprefetch-control': 'X-DNSPrefetch-Control',
}[name.toLowerCase()];
if (result) {
return result;
}
// the default
return name
.split('-')
.map(function (text) {
return text.charAt(0).toUpperCase() + text.substr(1).toLowerCase();
})
.join('-');
};
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parsed[key] : []).concat([val]);\n    } else {\n      parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n    }\n  });\n\n  return parsed;\n};\n\n/**\n * Normalize input headers\n *\n * @param headers\n */\nexport const normalizeHeaders = (headers: FsRequestHeaders): FsRequestHeaders => {\n  if (!headers) {\n    return {};\n  }\n\n  const toReturn = {};\n\n  for (let i in headers) {\n    toReturn[normalizeName(i)] =  headers[i];\n  }\n\n  return toReturn;\n};\n\n// expect(set({}, 'set-cookies', 'value')).toEqual({ 'Set-Cookies': 'value' });\n/**\n * Set request headers\n *\n * @param headers - object containing headers\n * @param name - header name\n * @param value - header value\n * @param setIFExists - determine if we should change header value if exists\n */\nexport const set = (headers: FsRequestHeaders, name: string, value: string, setIFExists = false) => {\n  const normalizedName = normalizeName(name);\n\n  if (!headers) {\n    headers = {};\n  }\n\n  // cleanup headers from undefined vals\n  headers = JSON.parse(JSON.stringify(headers));\n  if (headers[name] === undefined && headers[normalizedName] === undefined) {\n    headers[normalizedName] = value;\n  } else if (setIFExists) {\n    delete headers[name];\n    headers[normalizedName] = value;\n  }\n\n  return headers;\n};\n\n/**\n * Normalize header names according to rfc spec\n *\n * @param {string} name - header name\n */\nexport const normalizeName = (name: string) => {\n  // the exceptions\n  let result = {\n    'content-md5': 'Content-MD5',\n    dnt: 'DNT',\n    etag: 'ETag',\n    'last-event-id': 'Last-Event-ID',\n    tcn: 'TCN',\n    te: 'TE',\n    'www-authenticate': 'WWW-Authenticate',\n    'x-dnsprefetch-control': 'X-DNSPrefetch-Control',\n  }[name.toLowerCase()];\n\n  if (result) {\n    return result;\n  }\n\n  // the default\n  return name\n    .split('-')\n    .map(function(text) {\n      return text.charAt(0).toUpperCase() + text.substr(1).toLowerCase();\n    })\n    .join('-');\n};\n"]}