Adding new BidAdapter 'eywamedia' (prebid#4055)

* Adding new BidAdapter 'eywamedia'

* removed unused import

* removed unused variables

* removed unused import

* removed unused import - my bad!

modules/eywamediaBidAdapter.js

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+import * as utils from '../src/utils';
+import { registerBidder } from '../src/adapters/bidderFactory';
+
+const BIDDER_CODE = 'eywamedia';
+const CURRENCY = 'USD';
+const VERSION = '1.0.0';
+const TIME_TO_LIVE = 360;
+const NET_REVENUE = true;
+const COOKIE_NAME = 'emaduuid';
+const UUID_LEN = 36;
+const SERVER_ENDPOINT = 'https://adtarbostg.eywamedia.com/auctions/prebidjs/3000';
+const localWindow = getTopWindow();
+
+export const spec = {
+  code: BIDDER_CODE,
+  supportedMediaTypes: ['banner'],
+  /**
+    * Determines whether or not the given bid request is valid.
+    * @param {object} bid, bid to validate
+    * @return boolean, true if valid, otherwise false
+    */
+  isBidRequestValid: function(bid) {
+    return !!(bid.params.publisherId);
+  },
+  /**
+   * 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 requestPayload Info describing the request to the server.
+   */
+  buildRequests: function(bidRequests, bidRequest) {
+    const device = getDeviceInfo();
+    const site = getSiteInfo();
+    const user = getUserInfo();
+
+    let requestPayload = {
+      id: utils.generateUUID(),
+      publisherId: bidRequests[0].params.publisherId,
+      device: device,
+      site: site,
+      user: user,
+      bidPayload: bidRequests,
+      cacheBust: new Date().getTime().toString(),
+      adapterVersion: VERSION,
+      tmax: bidRequest.timeout
+    };
+
+    return {
+      method: 'POST',
+      url: SERVER_ENDPOINT,
+      options: {
+        contentType: 'application/json'
+      },
+      data: requestPayload
+    }
+  },
+
+  /**
+   * Makes Eywamedia Ad Server response compatible to Prebid specs
+   * @param serverResponse successful response from Ad Server
+   * @param bidderRequest original bidRequest
+   * @return {Bid[]} an array of bids
+   */
+  interpretResponse: function (serverResponse, bidRequest) {
+    var bidObject, response;
+    var bidRespones = [];
+    var responses = serverResponse.body;
+    for (var i = 0; i < responses.length; i++) {
+      response = responses[i];
+      bidObject = {
+        requestId: response.bidId,
+        cpm: response.cpm,
+        width: parseInt(response.width),
+        height: parseInt(response.height),
+        creativeId: response.bidId,
+        currency: CURRENCY,
+        netRevenue: NET_REVENUE,
+        ttl: TIME_TO_LIVE,
+        ad: response.ad,
+        bidderCode: BIDDER_CODE,
+        transactionId: response.transactionId,
+        mediaType: response.respType,
+      };
+      bidRespones.push(bidObject);
+    }
+    return bidRespones;
+  }
+}
+registerBidder(spec);
+
+/***************************************
+ * Helper Functions
+ ***************************************/
+
+/**
+ * get device type
+ */
+function getDeviceType() {
+  let ua = navigator.userAgent;
+  // Tablets must be checked before phones.
+  if ((/(tablet|ipad|playbook|silk)|(android(?!.*mobi))/i).test(ua)) {
+    return 5; // "Tablet"
+  }
+  if ((/Mobile|iP(hone|od|ad)|Android|BlackBerry|IEMobile|Kindle|NetFront|Silk-Accelerated|(hpw|web)OS|Fennec|Minimo|Opera M(obi|ini)|Blazer|Dolfin|Dolphin|Skyfire|Zune/).test(ua)) {
+    return 4; // "Phone"
+  }
+  return 2; // Personal Computers
+};
+
+/**
+ * get device info
+ */
+function getDeviceInfo() {
+  const language = navigator.language;
+  return {
+    ua: navigator.userAgent,
+    language: navigator[language],
+    devicetype: getDeviceType(),
+    dnt: utils.getDNT(),
+    geo: {},
+    js: 1
+  };
+};
+
+/**
+ * get site info
+ */
+function getSiteInfo() {
+  const topLocation = utils.getTopWindowLocation();
+  return {
+    domain: topLocation.hostname,
+    page: topLocation.href,
+    referrer: utils.getTopWindowReferrer(),
+    desc: getPageDescription(),
+    title: localWindow.document.title,
+  };
+};
+
+/**
+ * get user info
+ */
+function getUserInfo() {
+  return {
+    id: getUserID(),
+  };
+};
+
+/**
+ * get user Id
+ */
+const getUserID = () => {
+  const i = document.cookie.indexOf(COOKIE_NAME);
+
+  if (i === -1) {
+    const uuid = utils.generateUUID();
+    document.cookie = `${COOKIE_NAME}=${uuid}; path=/`;
+    return uuid;
+  }
+
+  const j = i + COOKIE_NAME.length + 1;
+  return document.cookie.substring(j, j + UUID_LEN);
+};
+
+/**
+ * get page description
+ */
+function getPageDescription() {
+  if (document.querySelector('meta[name="description"]')) {
+    return document.querySelector('meta[name="description"]').getAttribute('content'); // Value of the description metadata from the publisher's page.
+  } else {
+    return '';
+  }
+};
+
+function getTopWindow() {
+  try {
+    return window.top;
+  } catch (e) {
+    return window;
+  }
+};

modules/eywamediaBidAdapter.md

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+# Overview
+
+```
+Module Name:  Eywamedia Bid Adapter
+Module Type:  Bidder Adapter
+Maintainer: sharath@eywamedia.com
+Note: Our ads will only render in mobile and desktop
+```
+
+# Description
+
+Connects to Eywamedia Ad Server for bids.
+
+Eywamedia bid adapter supports Banners.
+
+# Test Parameters
+```
+var adUnits = [
+   // Banner adUnit
+   {
+       code: 'div-gpt-ad-1460505748561-0', 
+       sizes: [[300, 250], [300,600]],
+       bids: [{
+         bidder: 'eywamedia',
+         params: {
+           publisherId: 'f63a2362-5aa4-4829-bbd2-2678ced8b63e', //Required - GUID (may include numbers and characters) 
+           bidFloor: 0.50, // optional
+           cats: ["iab1-1","iab23-2"], // optional
+           keywords: ["sports", "cricket"],  // optional
+           lat: 12.33333, // optional
+           lon: 77.32322, // optional
+           locn: "country$region$city$zip"  // optional
+         }
+       }]
+   }
+];
+```