freewheelSSPBidAdapter Update the freewheelSSPBidAdapter based on Pre…

…bid 3.0 changes, add max and min size limit as per client's requirement

modules/freewheelSSPBidAdapter.js

@@ -0,0 +1,372 @@
+import * as utils from 'src/utils';
+import { registerBidder } from 'src/adapters/bidderFactory';
+// import { config } from 'src/config';
+
+const BIDDER_CODE = 'freewheel-ssp';
+
+const PROTOCOL = getProtocol();
+const FREEWHEEL_ADSSETUP = PROTOCOL + '://ads.stickyadstv.com/www/delivery/swfIndex.php';
+const MUSTANG_URL = PROTOCOL + '://cdn.stickyadstv.com/mustang/mustang.min.js';
+const PRIMETIME_URL = PROTOCOL + '://cdn.stickyadstv.com/prime-time/';
+const USER_SYNC_URL = PROTOCOL + '://ads.stickyadstv.com/auto-user-sync';
+
+function getProtocol() {
+    return 'https';
+}
+
+function isValidUrl(str) {
+  if (!str) {
+    return false;
+  }
+
+  // regExp for url validation
+  var pattern = /^(https?|ftp|file):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/;
+  return pattern.test(str);
+}
+
+function getBiggerSize(array) {
+  var result = [0, 0];
+  for (var i = 0; i < array.length; i++) {
+    if (array[i][0] * array[i][1] > result[0] * result[1]) {
+      result = array[i];
+    }
+  }
+  return result;
+}
+
+function getBiggerSizeWithLimit(array, minSizeLimit, maxSizeLimit) {
+  var minSize = minSizeLimit || [0, 0];
+  var maxSize = maxSizeLimit || [Number.MAX_VALUE, Number.MAX_VALUE];
+  var candidates = [];
+
+  for (var i = 0; i < array.length; i++) {
+    if (array[i][0] * array[i][1] >= minSize[0] * minSize[1] && array[i][0] * array[i][1] <= maxSize[0] * maxSize[1]) {
+      candidates.push(array[i]);
+    }
+  }
+
+  return getBiggerSize(candidates);
+}
+
+/*
+* read the pricing extension with this format: <Extension type='StickyPricing'><Price currency="EUR">1.0000</Price></Extension>
+* @return {object} pricing data in format: {currency: "EUR", price:"1.000"}
+*/
+function getPricing(xmlNode) {
+  var pricingExtNode;
+  var princingData = {};
+
+  var extensions = xmlNode.querySelectorAll('Extension');
+  // Nodelist.forEach is not supported in IE and Edge
+  // Workaround given here https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10638731/
+  Array.prototype.forEach.call(extensions, function(node) {
+    if (node.getAttribute('type') === 'StickyPricing') {
+      pricingExtNode = node;
+    }
+  });
+
+  if (pricingExtNode) {
+    var priceNode = pricingExtNode.querySelector('Price');
+    princingData = {
+      currency: priceNode.getAttribute('currency'),
+      price: priceNode.textContent || priceNode.innerText
+    };
+  } else {
+    utils.logWarn('PREBID - ' + BIDDER_CODE + ': Can\'t get pricing data. Is price awareness enabled?');
+  }
+
+  return princingData;
+}
+
+function hashcode(inputString) {
+  var hash = 0;
+  var char;
+  if (inputString.length == 0) return hash;
+  for (var i = 0; i < inputString.length; i++) {
+    char = inputString.charCodeAt(i);
+    hash = ((hash << 5) - hash) + char;
+    hash = hash & hash; // Convert to 32bit integer
+  }
+  return hash;
+}
+
+function getCreativeId(xmlNode) {
+  var creaId = '';
+  var adNodes = xmlNode.querySelectorAll('Ad');
+  // Nodelist.forEach is not supported in IE and Edge
+  // Workaround given here https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/10638731/
+  Array.prototype.forEach.call(adNodes, function(el) {
+    creaId += '[' + el.getAttribute('id') + ']';
+  });
+
+  return creaId;
+}
+
+/**
+* returns the top most accessible window
+*/
+function getTopMostWindow() {
+  var res = window;
+
+  try {
+    while (top !== res) {
+      if (res.parent.location.href.length) { res = res.parent; }
+    }
+  } catch (e) {}
+
+  return res;
+}
+
+function getComponentId(inputFormat) {
+  var component = 'mustang'; // default component id
+
+  if (inputFormat && inputFormat !== 'inbanner') {
+    // format identifiers are equals to their component ids.
+    component = inputFormat;
+  }
+
+  return component;
+}
+
+function getAPIName(componentId) {
+  componentId = componentId || '';
+
+  // remove dash in componentId to get API name
+  return componentId.replace('-', '');
+}
+
+function formatAdHTML(bid, size) {
+  var integrationType = bid.params.format;
+
+  var divHtml = '<div id="freewheelssp_prebid_target" style="width:' + size[0] + 'px;height:' + size[1] + 'px;"></div>';
+
+  var script = '';
+  var libUrl = '';
+  if (integrationType && integrationType !== 'inbanner') {
+    libUrl = PRIMETIME_URL + getComponentId(bid.params.format) + '.min.js';
+    script = getOutstreamScript(bid, size);
+  } else {
+    libUrl = MUSTANG_URL;
+    script = getInBannerScript(bid, size);
+  }
+
+  return divHtml +
+  '<script type=\'text/javascript\'>' +
+  '(function() {' +
+  '  var st = document.createElement(\'script\'); st.type = \'text/javascript\'; st.async = true;' +
+  '  st.src = \'' + libUrl + '\';' +
+  '  st.onload = function(){' +
+  '    var vastLoader = new window.com.stickyadstv.vast.VastLoader();' +
+  '    var vast = vastLoader.getVast();' +
+  // get the top most accessible window
+  '    var topWindow = (function(){var res=window; try{while(top != res){if(res.parent.location.href.length)res=res.parent;}}catch(e){}return res;})();' +
+  // inject the xml in the Vast object as string
+  '    vast.setXmlString(topWindow.freewheelssp_cache["' + bid.adUnitCode + '"]);' +
+  // force ad parsing on the given vast xml
+  '    vastLoader.parseAds(vast, {' +
+  '      onSuccess: function() {' + script + ' }' +
+  '    });' +
+  '  };' +
+  '  document.head.appendChild(st);' +
+  '})();' +
+  '</script>';
+}
+
+var getInBannerScript = function(bid, size) {
+  return 'var config = {' +
+  '      preloadedVast:vast,' +
+  '      autoPlay:true' +
+  '    };' +
+  '    var ad = new window.com.stickyadstv.vpaid.Ad(document.getElementById("freewheelssp_prebid_target"),config);' +
+  '    (new window.com.stickyadstv.tools.ASLoader(' + bid.params.zoneId + ', \'' + getComponentId(bid.params.format) + '\')).registerEvents(ad);' +
+  '    ad.initAd(' + size[0] + ',' + size[1] + ',"",0,"","");';
+};
+
+var getOutstreamScript = function(bid) {
+  var config = bid.params;
+
+  // default placement if no placement is set
+  if (!config.hasOwnProperty('domId') && !config.hasOwnProperty('auto') && !config.hasOwnProperty('p') && !config.hasOwnProperty('article')) {
+    if (config.format === 'intext-roll') {
+      config.iframeMode = 'dfp';
+    } else {
+      config.domId = 'freewheelssp_prebid_target';
+    }
+  }
+
+  var script = 'var config = {' +
+  '  preloadedVast:vast,' +
+  '  ASLoader:new window.com.stickyadstv.tools.ASLoader(' + bid.params.zoneId + ', \'' + getComponentId(bid.params.format) + '\')';
+
+  for (var key in config) {
+    // dont' send format parameter
+    // neither zone nor vastUrlParams value as Vast is already loaded
+    if (config.hasOwnProperty(key) && key !== 'format' && key !== 'zone' && key !== 'zoneId' && key !== 'vastUrlParams') {
+      script += ',' + key + ':"' + config[key] + '"';
+    }
+  }
+  script += '};' +
+
+  'window.com.stickyadstv.' + getAPIName(bid.params.format) + '.start(config);';
+
+  return script;
+};
+
+export const spec = {
+  code: BIDDER_CODE,
+  supportedMediaTypes: ['banner', 'video'],
+  aliases: ['stickyadstv'], //  former name for freewheel-ssp
+  /**
+  * Determines whether or not the given bid request is valid.
+  *
+  * @param {object} bid The bid to validate.
+  * @return boolean True if this is a valid bid, and false otherwise.
+  */
+  isBidRequestValid: function(bid) {
+    return !!(bid.params.zoneId);
+  },
+
+  /**
+  * Make a server request from the list of BidRequests.
+  *
+  * @param {BidRequest[]} bidRequests A non-empty list of bid requests which should be sent to the Server.
+  * @return ServerRequest Info describing the request to the server.
+  */
+  buildRequests: function(bidRequests, bidderRequest) {
+    // var currency = config.getConfig(currency);
+
+    var currentBidRequest = bidRequests[0];
+    if (bidRequests.length > 1) {
+      utils.logMessage('Prebid.JS - freewheel bid adapter: only one ad unit is required.');
+    }
+
+    var zone = currentBidRequest.params.zoneId;
+    var timeInMillis = new Date().getTime();
+    var keyCode = hashcode(zone + '' + timeInMillis);
+    var requestParams = {
+      reqType: 'AdsSetup',
+      protocolVersion: '2.0',
+      zoneId: zone,
+      componentId: getComponentId(currentBidRequest.params.format),
+      timestamp: timeInMillis,
+      pKey: keyCode
+    };
+
+    // Add GDPR flag and consent string
+    if (bidderRequest.gdprConsent) {
+      requestParams._fw_gdpr_consent = bidderRequest.gdprConsent.consentString;
+
+      if (typeof bidderRequest.gdprConsent.gdprApplies === 'boolean') {
+        requestParams._fw_gdpr = bidderRequest.gdprConsent.gdprApplies;
+      }
+    }
+
+    if (currentBidRequest.params.gdpr_consented_providers) {
+      requestParams._fw_gdpr_consented_providers = currentBidRequest.params.gdpr_consented_providers;
+    }
+
+    var vastParams = currentBidRequest.params.vastUrlParams;
+    if (typeof vastParams === 'object') {
+      for (var key in vastParams) {
+        if (vastParams.hasOwnProperty(key)) {
+          requestParams[key] = vastParams[key];
+        }
+      }
+    }
+
+    var location = utils.getTopWindowUrl();
+    if (isValidUrl(location)) {
+      requestParams.loc = location;
+    }
+
+    var playerSize = getBiggerSizeWithLimit(currentBidRequest.mediaTypes.banner.sizes, currentBidRequest.mediaTypes.banner.minSizeLimit, currentBidRequest.mediaTypes.banner.maxSizeLimit);
+
+    if (playerSize[0] > 0 || playerSize[1] > 0) {
+      requestParams.playerSize = playerSize[0] + 'x' + playerSize[1];
+    }
+
+    return {
+      method: 'GET',
+      url: FREEWHEEL_ADSSETUP,
+      data: requestParams,
+      bidRequest: currentBidRequest
+    };
+  },
+
+  /**
+  * Unpack the response from the server into a list of bids.
+  *
+  * @param {*} serverResponse A successful response from the server.
+  * @param {object} request: the built request object containing the initial bidRequest.
+  * @return {Bid[]} An array of bids which were nested inside the server.
+  */
+  interpretResponse: function(serverResponse, request) {
+    var bidrequest = request.bidRequest;
+    var playerSize = getBiggerSizeWithLimit(bidrequest.mediaTypes.banner.sizes, bidrequest.mediaTypes.banner.minSizeLimit, bidrequest.mediaTypes.banner.maxSizeLimit);
+
+    if (typeof serverResponse == 'object' && typeof serverResponse.body == 'string') {
+      serverResponse = serverResponse.body;
+    }
+
+    var xmlDoc;
+    try {
+      var parser = new DOMParser();
+      xmlDoc = parser.parseFromString(serverResponse, 'application/xml');
+    } catch (err) {
+      utils.logWarn('Prebid.js - ' + BIDDER_CODE + ' : ' + err);
+      return;
+    }
+
+    const princingData = getPricing(xmlDoc);
+    const creativeId = getCreativeId(xmlDoc);
+
+    const topWin = getTopMostWindow();
+    if (!topWin.freewheelssp_cache) {
+      topWin.freewheelssp_cache = {};
+    }
+    topWin.freewheelssp_cache[bidrequest.adUnitCode] = serverResponse;
+
+    const bidResponses = [];
+
+    if (princingData.price) {
+      const bidResponse = {
+        requestId: bidrequest.bidId,
+        cpm: princingData.price,
+        width: playerSize[0],
+        height: playerSize[1],
+        creativeId: creativeId,
+        currency: princingData.currency,
+        netRevenue: true,
+        ttl: 360
+      };
+
+      var mediaTypes = bidrequest.mediaTypes || {};
+      if (mediaTypes.video) {
+        // bidResponse.vastXml = serverResponse;
+        bidResponse.mediaType = 'video';
+
+        var blob = new Blob([serverResponse], {type: 'application/xml'});
+        bidResponse.vastUrl = window.URL.createObjectURL(blob);
+      } else {
+        bidResponse.ad = formatAdHTML(bidrequest, playerSize);
+      }
+
+      bidResponses.push(bidResponse);
+    }
+
+    return bidResponses;
+  },
+
+  getUserSyncs: function(syncOptions) {
+    if (syncOptions && syncOptions.pixelEnabled) {
+      return [{
+        type: 'image',
+        url: USER_SYNC_URL
+      }];
+    } else {
+      return [];
+    }
+  },
+
+}
+registerBidder(spec);