set azure cros

azurecros.js

var crypto = require('crypto');
var request = require('request');


var setCors = function (MY_ACCOUNT_URL, MY_ACCOUNT_NAME, accountKey) {
  var MY_CORS_XML =
    '<?xml version="1.0" encoding="utf-8"?>'+
    '<StorageServiceProperties>'+
    '<Cors>'+
    '<CorsRule>'+
    '<AllowedOrigins>*</AllowedOrigins>'+
    '<AllowedMethods>GET,PUT,OPTIONS</AllowedMethods>'+
    '<MaxAgeInSeconds>5000</MaxAgeInSeconds>'+
    '<ExposedHeaders>*</ExposedHeaders>'+
    '<AllowedHeaders>*</AllowedHeaders>'+
    '</CorsRule>'+
    '</Cors>'+
    '<DefaultServiceVersion>2013-08-15</DefaultServiceVersion>'+
    '</StorageServiceProperties>';


  var url = MY_ACCOUNT_URL + '/?restype=service&comp=properties';
  var canonicalizedResource = '/' + MY_ACCOUNT_NAME + '/?comp=properties';
  var corsMD5 = crypto.createHash('md5' ).update(MY_CORS_XML).digest('base64');
  var date = (new Date()).toUTCString();
  var headers = {
    'x-ms-version': '2013-08-15',
    'x-ms-date': date,
    'Content-Type': 'text/plain; charset=UTF-8',//Added this line
    'Content-MD5': corsMD5,//Added this line
  };

  var canonicalizedHeaders = buildCanonicalizedHeaders( headers );

  // THIS
  var key = buildSharedKeyLite( 'PUT', corsMD5, 'text/plain; charset=UTF-8', canonicalizedHeaders, canonicalizedResource, accountKey);

  // AND THIS, BOTH YIELD THE SAME SERVER RESPONSE
  // var key = buildSharedKeyLite( 'PUT', "", "", canonicalizedHeaders, canonicalizedResource, accountKey);

  headers['Authorization'] = 'SharedKeyLite ' + MY_ACCOUNT_NAME + ':' + key;

  var options = {
    url: 'https://mediasvc4skk4dmmx0k19.blob.core.chinacloudapi.cn',
    body: MY_CORS_XML,
    qs: {restype:'service', comp:'properties'},
    headers: headers
  };

  console.log("url : " + url);
  console.log("canonicalizedResource : " + canonicalizedResource);
  console.log("canonicalizedHeaders : " + canonicalizedHeaders);
  console.log("corsMD5 : " + corsMD5);
  console.log("key : " + key);
  console.log("options : " + JSON.stringify(options));

  function onPropertiesSet(error, response, body) {
    if (!error && response.statusCode == 202) {
      console.log("CORS: OK");
    }
    else {
      console.log("CORS: " + response.statusCode);
      console.log("body : " + body);
    }
  }
  request.put(options, onPropertiesSet); // require('request')
};

function buildCanonicalizedHeaders( headers ) {

  var xmsHeaders = [];
  var canHeaders = "";

  for ( var name in headers ) {
    if ( name.indexOf('x-ms-') == 0 ) {
      xmsHeaders.push( name );
    }
  }

  xmsHeaders.sort();

  for ( var i = 0; i < xmsHeaders.length; i++ ) {
    name = xmsHeaders[i];
    canHeaders = canHeaders + name.toLowerCase().trim() + ':' + headers[name] + '\n';
  }
  return canHeaders;
}

function buildSharedKeyLite( verb, contentMD5, contentType, canonicalizedHeaders, canonicalizedResource, accountKey) {

  var stringToSign = verb + "\n" +
    contentMD5 + "\n" +
    contentType + "\n" +
    "" + "\n" + // date is to be empty because we use x-ms-date
    canonicalizedHeaders +
    canonicalizedResource;

  // return crypto.createHmac('sha256', accountKey).update(encodeURIComponent(stringToSign)).digest('base64');
  return crypto.createHmac('sha256', new Buffer(accountKey, 'base64')).update(stringToSign).digest('base64');
}

//MY_ACCOUNT_URL, MY_ACCOUNT_NAME, MY_ACCOUNT_HOST, accountKey
var MY_ACCOUNT_URL = 'https://mediasvc4skk4dmmx0k19.blob.core.chinacloudapi.cn/'
var MY_ACCOUNT_NAME = '***'
var ACCOUNT_KEY = '***'

setCors(MY_ACCOUNT_URL, MY_ACCOUNT_NAME, ACCOUNT_KEY);