Linux altar53.supremepanel53.com 4.18.0-553.8.1.lve.el8.x86_64 #1 SMP Thu Jul 4 16:24:39 UTC 2024 x86_64
/ lib/ node_modules/ npm/ node_modules/ aws-sign2/ |
|
/*! * Copyright 2010 LearnBoost <dev@learnboost.com> * * 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. */ /** * Module dependencies. */ var crypto = require('crypto') , parse = require('url').parse ; /** * Valid keys. */ var keys = [ 'acl' , 'location' , 'logging' , 'notification' , 'partNumber' , 'policy' , 'requestPayment' , 'torrent' , 'uploadId' , 'uploads' , 'versionId' , 'versioning' , 'versions' , 'website' ] /** * Return an "Authorization" header value with the given `options` * in the form of "AWS <key>:<signature>" * * @param {Object} options * @return {String} * @api private */ function authorization (options) { return 'AWS ' + options.key + ':' + sign(options) } module.exports = authorization module.exports.authorization = authorization /** * Simple HMAC-SHA1 Wrapper * * @param {Object} options * @return {String} * @api private */ function hmacSha1 (options) { return crypto.createHmac('sha1', options.secret).update(options.message).digest('base64') } module.exports.hmacSha1 = hmacSha1 /** * Create a base64 sha1 HMAC for `options`. * * @param {Object} options * @return {String} * @api private */ function sign (options) { options.message = stringToSign(options) return hmacSha1(options) } module.exports.sign = sign /** * Create a base64 sha1 HMAC for `options`. * * Specifically to be used with S3 presigned URLs * * @param {Object} options * @return {String} * @api private */ function signQuery (options) { options.message = queryStringToSign(options) return hmacSha1(options) } module.exports.signQuery= signQuery /** * Return a string for sign() with the given `options`. * * Spec: * * <verb>\n * <md5>\n * <content-type>\n * <date>\n * [headers\n] * <resource> * * @param {Object} options * @return {String} * @api private */ function stringToSign (options) { var headers = options.amazonHeaders || '' if (headers) headers += '\n' var r = [ options.verb , options.md5 , options.contentType , options.date ? options.date.toUTCString() : '' , headers + options.resource ] return r.join('\n') } module.exports.stringToSign = stringToSign /** * Return a string for sign() with the given `options`, but is meant exclusively * for S3 presigned URLs * * Spec: * * <date>\n * <resource> * * @param {Object} options * @return {String} * @api private */ function queryStringToSign (options){ return 'GET\n\n\n' + options.date + '\n' + options.resource } module.exports.queryStringToSign = queryStringToSign /** * Perform the following: * * - ignore non-amazon headers * - lowercase fields * - sort lexicographically * - trim whitespace between ":" * - join with newline * * @param {Object} headers * @return {String} * @api private */ function canonicalizeHeaders (headers) { var buf = [] , fields = Object.keys(headers) ; for (var i = 0, len = fields.length; i < len; ++i) { var field = fields[i] , val = headers[field] , field = field.toLowerCase() ; if (0 !== field.indexOf('x-amz')) continue buf.push(field + ':' + val) } return buf.sort().join('\n') } module.exports.canonicalizeHeaders = canonicalizeHeaders /** * Perform the following: * * - ignore non sub-resources * - sort lexicographically * * @param {String} resource * @return {String} * @api private */ function canonicalizeResource (resource) { var url = parse(resource, true) , path = url.pathname , buf = [] ; Object.keys(url.query).forEach(function(key){ if (!~keys.indexOf(key)) return var val = '' == url.query[key] ? '' : '=' + encodeURIComponent(url.query[key]) buf.push(key + val) }) return path + (buf.length ? '?' + buf.sort().join('&') : '') } module.exports.canonicalizeResource = canonicalizeResource