AdSupply adapter (#1162)

* Added adsupply adapter

* Added client Id

* Fixed code review comments

adapters.json

@@ -64,6 +64,7 @@
     "atomx",
     "tapsense",
     "trion",
+    "adsupply",
     {
       "appnexus": {
         "alias": "brealtime"

src/adapters/adsupply.js

@@ -0,0 +1,86 @@
+var bidfactory = require('../bidfactory.js');
+var bidmanager = require('../bidmanager.js');
+var adloader = require('../adloader');
+var utils = require('../utils');
+const ADSUPPLY_CODE = 'adsupply';
+
+var AdSupplyAdapter = function AdSupplyAdapter() {
+  function _validateParams(params) {
+    if (!params || !params.siteId || !params.zoneId || !params.endpointUrl || !params.clientId) {
+      return false;
+    }
+
+    if (typeof params.zoneId !== 'number' || params.zoneId <= 0) {
+      return false;
+    }
+
+    return true;
+  }
+
+  function _getRequestUrl(bid) {
+    var referrerUrl = encodeURIComponent(window.document.referrer);
+    var rand = encodeURIComponent(Math.floor(Math.random() * 100000 + 1));
+    var time = encodeURIComponent(new Date().getTimezoneOffset());
+    return '//' + bid.params.endpointUrl + '/banner.engine?id=' + bid.params.siteId + '&z=' + bid.params.zoneId + '&rand=' + rand + '&ver=async' + '&time=' + time + '&referrerurl=' + referrerUrl + '&abr=false' + '&hbt=1&cid=' + encodeURIComponent(bid.params.clientId);
+  }
+
+  $$PREBID_GLOBAL$$.adSupplyResponseHandler = function (bidId) {
+    if (!bidId) return;
+
+    var bidRequest = utils.getBidRequest(bidId);
+
+    if (!bidRequest || !bidRequest.params) return;
+
+    var clientId = bidRequest.params.clientId;
+    var zoneProp = 'b' + bidRequest.params.zoneId;
+
+    if (!window[clientId] || !window[clientId][zoneProp]) return;
+
+    var media = window[clientId][zoneProp].Media;
+
+    if (!media) return;
+
+    if (!media.Url || !media.Ecpm || typeof media.Ecpm !== 'number' || media.Ecpm <= 0) {
+      var noFillbject = bidfactory.createBid(2, bidRequest);
+      noFillbject.bidderCode = ADSUPPLY_CODE;
+      bidmanager.addBidResponse(bidRequest.placementCode, noFillbject);
+    } else {
+      var bidObject = bidfactory.createBid(1, bidRequest);
+      bidObject.bidderCode = ADSUPPLY_CODE;
+      bidObject.cpm = media.Ecpm;
+      bidObject.ad = '<iframe style="z-index: 5000001; margin: 0px; padding: 0px; border: none; width: ' + media.Width + 'px; height: ' + media.Height + 'px; " src="//' + bidRequest.params.endpointUrl + media.Url + '"></iframe>';
+      bidObject.width = media.Width;
+      bidObject.height = media.Height;
+      bidmanager.addBidResponse(bidRequest.placementCode, bidObject);
+    }
+  };
+
+  function _makeCallBackHandler(bidId) {
+    return function () {
+      $$PREBID_GLOBAL$$.adSupplyResponseHandler(bidId);
+    };
+  }
+
+  function _callBids(params) {
+    var bids = params.bids || [];
+    for (var i = 0; i < bids.length; i++) {
+      var bid = bids[i];
+      if (!_validateParams(bid.params)) continue;
+
+      var clientId = bid.params.clientId;
+      var zoneProp = 'b' + bid.params.zoneId;
+      window[clientId] = window[clientId] || {};
+      window.window[clientId][zoneProp] = window.window[clientId][zoneProp] || {};
+      window.window[clientId][zoneProp].Media = {};
+
+      var requestUrl = _getRequestUrl(bid);
+      adloader.loadScript(requestUrl, _makeCallBackHandler(bid.bidId));
+    }
+  }
+
+  return {
+    callBids: _callBids
+  };
+};
+
+module.exports = AdSupplyAdapter;