add stv adapter (prebid#3737)

* add stv adapter

* remove comments from adapter file

modules/stvBidAdapter.js

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+
+import * as utils from '../src/utils';
+import {config} from '../src/config';
+import {registerBidder} from '../src/adapters/bidderFactory';
+import { BANNER, VIDEO } from '../src/mediaTypes';
+
+const BIDDER_CODE = 'stv';
+const VADS_ENDPOINT_URL = 'https://ads.smartstream.tv/r/';
+const DEFAULT_VIDEO_SOURCE = 'vads';
+const DEFAULT_BANNER_FORMAT = 'vast2';
+
+export const spec = {
+  code: BIDDER_CODE,
+  aliases: ['vads'],
+  supportedMediaTypes: [BANNER, VIDEO],
+  isBidRequestValid: function(bid) {
+    return !!(bid.params.placement);
+  },
+  buildRequests: function(validBidRequests, bidderRequest) {
+    return validBidRequests.map(bidRequest => {
+      const params = bidRequest.params;
+
+      const videoData = utils.deepAccess(bidRequest, 'mediaTypes.video') || {};
+      const sizes = utils.parseSizesInput(videoData.playerSize || bidRequest.sizes)[0];
+      const width = sizes.split('x')[0];
+      const height = sizes.split('x')[1];
+
+      const placementId = params.placement;
+
+      const rnd = Math.floor(Math.random() * 99999999999);
+      const referrer = encodeURIComponent(bidderRequest.refererInfo.referer);
+      const bidId = bidRequest.bidId;
+      let endpoint = VADS_ENDPOINT_URL;
+
+      let payload = {};
+      if (isVideoRequest(bidRequest)) {
+        const source = params.source || DEFAULT_VIDEO_SOURCE;
+        if (source === 'vads') {
+          payload = {
+            _f: 'vast2',
+            alternative: 'prebid_js',
+            _ps: placementId,
+            srw: width,
+            srh: height,
+            idt: 100,
+            rnd: rnd,
+            ref: referrer,
+            bid_id: bidId,
+          };
+          endpoint = VADS_ENDPOINT_URL;
+        }
+      } else {
+        const outputFormat = params.format || DEFAULT_BANNER_FORMAT;
+        payload = {
+          _f: outputFormat,
+          alternative: 'prebid_js',
+          inventory_item_id: placementId,
+          srw: width,
+          srh: height,
+          idt: 100,
+          rnd: rnd,
+          ref: referrer,
+          bid_id: bidId,
+        };
+      }
+      prepareExtraParams(params, payload);
+
+      return {
+        method: 'GET',
+        url: endpoint,
+        data: objectToQueryString(payload),
+      }
+    });
+  },
+  interpretResponse: function(serverResponse, bidRequest) {
+    const bidResponses = [];
+    const response = serverResponse.body;
+    const crid = response.crid || 0;
+    const cpm = response.cpm / 1000000 || 0;
+    if (cpm !== 0 && crid !== 0) {
+      const dealId = response.dealid || '';
+      const currency = response.currency || 'EUR';
+      const netRevenue = (response.netRevenue === undefined) ? true : response.netRevenue;
+      const bidResponse = {
+        requestId: response.bid_id,
+        cpm: cpm,
+        width: response.width,
+        height: response.height,
+        creativeId: crid,
+        dealId: dealId,
+        currency: currency,
+        netRevenue: netRevenue,
+        ttl: config.getConfig('_bidderTimeout')
+      };
+
+      if (response.vastXml) {
+        bidResponse.vastXml = response.vastXml;
+        bidResponse.mediaType = 'video';
+      } else {
+        bidResponse.ad = response.adTag;
+      }
+
+      bidResponses.push(bidResponse);
+    }
+    return bidResponses;
+  }
+}
+
+function objectToQueryString(obj, prefix) {
+  let str = [];
+  let p;
+  for (p in obj) {
+    if (obj.hasOwnProperty(p)) {
+      let k = prefix ? prefix + '[' + p + ']' : p;
+      let v = obj[p];
+      str.push((v !== null && typeof v === 'object')
+        ? objectToQueryString(v, k)
+        : encodeURIComponent(k) + '=' + (k == '_ps' ? v : encodeURIComponent(v)));
+    }
+  }
+  return str.join('&');
+}
+
+/**
+ * Check if it's a video bid request
+ *
+ * @param {BidRequest} bid - Bid request generated from ad slots
+ * @returns {boolean} True if it's a video bid
+ */
+function isVideoRequest(bid) {
+  return bid.mediaType === 'video' || !!utils.deepAccess(bid, 'mediaTypes.video');
+}
+
+function prepareExtraParams(params, payload) {
+  if (params.pfilter !== undefined) {
+    payload.pfilter = params.pfilter;
+  }
+  if (params.bcat !== undefined) {
+    payload.bcat = params.bcat;
+  }
+  if (params.noskip !== undefined) {
+    payload.noskip = params.noskip;
+  }
+
+  if (params.dvt !== undefined) {
+    payload.dvt = params.dvt;
+  }
+}
+
+registerBidder(spec);

modules/stvBidAdapter.md

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+# Overview
+
+```
+Module Name: STV Video Bidder Adapter
+Module Type: Bidder Adapter
+Maintainer: prebid@dspx.tv
+```
+
+# Description
+
+STV video adapter for Prebid.js 1.x
+
+# Parameters
+```
+    var adUnits = [
+        {
+            // video settings
+            code: 'video-obj',
+            mediaTypes: {
+                video: {
+                    context: 'instream',
+                    playerSize: [640, 480]
+                }
+            },
+            bids: [
+                {
+                    bidder: "stv",
+                    params: {
+                        placement: "", // placement ID of inventory with STV
+                        noskip: 1, // 0 or 1 
+                        pfilter: {/*
+                            min_duration: 10, // min duration
+                            max_duration: 30, // max duration
+                            min_bitrate:  300, // min bitrate
+                            max_bitrate:  1600, // max bitrate
+                        */}
+                    }
+                 }
+            ]
+        }
+    ];
+```
+

test/spec/modules/stvBidAdapter_spec.js

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+import { expect } from 'chai';
+import { spec } from 'modules/stvBidAdapter';
+import { newBidder } from 'src/adapters/bidderFactory';
+
+const VADS_ENDPOINT_URL = 'https://ads.smartstream.tv/r/';
+
+describe('stvAdapter', function () {
+  const adapter = newBidder(spec);
+
+  describe('isBidRequestValid', function () {
+    let bid = {
+      'bidder': 'stv',
+      'params': {
+        'placement': '6682',
+        'pfilter': {
+          'floorprice': 1000000
+        },
+        'bcat': 'IAB2,IAB4',
+        'dvt': 'desktop'
+      },
+      'sizes': [
+        [300, 250]
+      ],
+      'bidId': '30b31c1838de1e',
+      'bidderRequestId': '22edbae2733bf6',
+      'auctionId': '1d1a030790a475'
+    };
+
+    it('should return true when required params found', function () {
+      expect(spec.isBidRequestValid(bid)).to.equal(true);
+    });
+
+    it('should return false when required params are not passed', function () {
+      let bid = Object.assign({}, bid);
+      delete bid.params;
+      bid.params = {
+        'someIncorrectParam': 0
+      };
+      expect(spec.isBidRequestValid(bid)).to.equal(false);
+    });
+  });
+
+  describe('buildRequests', function () {
+    let bidRequests = [{
+      'bidder': 'stv',
+      'params': {
+        'source': 'vads',
+        'placement': 'prer0-0%3D4137',
+        'pfilter': {
+          'min_duration': 1,
+          'max_duration': 100,
+          'min_bitrate': 32,
+          'max_bitrate': 128,
+        },
+        'noskip': 1
+      },
+      'mediaTypes': {
+        'video': {
+          'playerSize': [640, 480],
+          'context': 'instream'
+        }
+      },
+      'bidId': '30b31c1838de1e',
+      'bidderRequestId': '22edbae2733bf6',
+      'auctionId': '1d1a030790a475'
+    }];
+
+    let bidderRequest = {
+      refererInfo: {
+        referer: 'some_referrer.net'
+      }
+    }
+
+    const request = spec.buildRequests(bidRequests, bidderRequest);
+    it('sends bid video request to our vads endpoint via GET', function () {
+      expect(request[0].method).to.equal('GET');
+      let data = request[0].data.replace(/rnd=\d+\&/g, '').replace(/ref=.*\&bid/g, 'bid');
+      expect(data).to.equal('_f=vast2&alternative=prebid_js&_ps=prer0-0%3D4137&srw=640&srh=480&idt=100&bid_id=30b31c1838de1e&pfilter%5Bmin_duration%5D=1&pfilter%5Bmax_duration%5D=100&pfilter%5Bmin_bitrate%5D=32&pfilter%5Bmax_bitrate%5D=128&noskip=1');
+    });
+  });
+
+  describe('interpretResponse', function () {
+    let vadsServerVideoResponse = {
+      'body': {
+        'cpm': 5000000,
+        'crid': 100500,
+        'width': '300',
+        'height': '250',
+        'vastXml': '{"reason":7001,"status":"accepted"}',
+        'requestId': '220ed41385952a',
+        'currency': 'EUR',
+        'ttl': 60,
+        'netRevenue': true,
+        'zone': '6682'
+      }
+    };
+
+    let expectedResponse = [{
+      requestId: '23beaa6af6cdde',
+      cpm: 0.5,
+      width: 0,
+      height: 0,
+      creativeId: 100500,
+      dealId: '',
+      currency: 'EUR',
+      netRevenue: true,
+      ttl: 300,
+      vastXml: '{"reason":7001,"status":"accepted"}',
+      mediaType: 'video'
+    }];
+
+    it('should get the correct vads video bid response by display ad', function () {
+      let bidRequest = [{
+        'method': 'GET',
+        'url': VADS_ENDPOINT_URL,
+        'mediaTypes': {
+          'video': {
+            'playerSize': [640, 480],
+            'context': 'instream'
+          }
+        },
+        'data': {
+          'bid_id': '30b31c1838de1e'
+        }
+      }];
+      let result = spec.interpretResponse(vadsServerVideoResponse, bidRequest[0]);
+      expect(Object.keys(result[0])).to.have.members(Object.keys(expectedResponse[0]));
+    });
+
+    it('handles empty bid response', function () {
+      let response = {
+        body: {}
+      };
+      let result = spec.interpretResponse(response);
+      expect(result.length).to.equal(0);
+    });
+  });
+});