aliyun-sdk/lib/service_interface/pop.js

Aliyun SDK for JavaScript

var ALY = require('../core');
require('./rest');
require('./json');

function randomNumbers(count) {
  var num = '';
  for (var i = 0; i < count; i++) {
    num += Math.floor(Math.random() * 10);
  }
  return num;
}

/**
 * @api private
 */
ALY.ServiceInterface.Pop = {
  buildRequest: function buildRequest(req) {
    ALY.ServiceInterface.Rest.buildRequest(req);
    ALY.ServiceInterface.Pop.populateBody(req);
  },

  extractError: function extractError(resp) {
    ALY.ServiceInterface.Json.extractError(resp);
  },

  extractData: function extractData(resp) {
    resp.data = JSON.parse(resp.httpResponse.body.toString());
  },

  populateBody: function populateBody(req) {
    req.httpRequest.headers['Content-Type'] = 'application/x-www-form-urlencoded;charset=UTF-8';

    var body = req.params;
    var date = ALY.util.date.getDate();

    body.Format = "JSON";
    body.Version = req.service.api.apiVersion;
    body.AccessKeyId = req.service.config.accessKeyId;
    body.SignatureVersion = "1.0";
    body.SignatureMethod = "HMAC-SHA1";
    body.SignatureNonce = String(date.getTime()) + randomNumbers(4);
    body.Timestamp = ALY.util.date.iso8601(date);

    // sign
    var headers = [];

    ALY.util.each(body, function (name) {
      headers.push(name);
    });

    headers.sort(function (a, b) {
      return a < b ? -1 : 1;
    });

    var canonicalizedQueryString = "";
    ALY.util.arrayEach.call(this, headers, function (name) {
      canonicalizedQueryString += "&" + name + "=" + ALY.util.popEscape(body[name]);
    });

    var stringToSign = 'POST&%2F&' + ALY.util.popEscape(canonicalizedQueryString.substr(1));
    body.Signature = ALY.util.crypto.hmac(req.service.config.secretAccessKey + '&', stringToSign, 'base64', 'sha1');

    // body
    var bodyString = ALY.util.queryParamsToString(body);

    req.httpRequest.body = bodyString;
  },

  buildJSON: function buildJSON(params, rules, api) {
    var builder = new ALY.JSON.Builder(rules, api);
    return builder.build(params);
  }

};