Adding integrated tile server

[simantics/district.git] / org.simantics.maps.server / node / node-v4.8.0-win-x64 / node_modules / npm / node_modules / request / node_modules / aws-sign2 / index.js

diff --git a/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/aws-sign2/index.js b/org.simantics.maps.server/node/node-v4.8.0-win-x64/node_modules/npm/node_modules/request/node_modules/aws-sign2/index.js
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+
+/*!
+ *  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.queryStringToSign = 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