Adding AdButler Adapter

adapters.json

@@ -1,6 +1,7 @@
 [
     "aardvark",
     "adblade",
+    "adbutler",
     "adequant",
     "adform",
     "admedia",

src/adapters/adbutler.js

@@ -0,0 +1,148 @@
+/**
+ * @overview AdButler Prebid.js adapter.
+ * @author dkharton
+ */
+
+'use strict';
+
+var utils = require('../utils.js');
+var adloader = require('../adloader.js');
+var bidmanager = require('../bidmanager.js');
+var bidfactory = require('../bidfactory.js');
+
+var AdButlerAdapter = function AdButlerAdapter() {
+
+  function _callBids(params) {
+
+    var bids = params.bids || [],
+        callbackData = {},
+        zoneCount = {},
+        pageID = Math.floor(Math.random() * 10e6);
+
+    //Build and send bid requests
+    for (var i = 0; i < bids.length; i++) {
+      var bid = bids[i],
+        zoneID = utils.getBidIdParamater('zoneID', bid.params),
+        callbackID;  
+
+      if(!(zoneID in zoneCount)){
+        zoneCount[zoneID] = 0;
+      }
+
+      //build callbackID to get placementCode later  
+      callbackID = zoneID + '_' +zoneCount[zoneID];
+
+      callbackData[callbackID] = {};
+      callbackData[callbackID].bidId = bid.bidId;
+
+      var adRequest = buildRequest(bid,zoneCount[zoneID],pageID);
+      zoneCount[zoneID]++;
+
+      adloader.loadScript(adRequest);
+    }
+
+    //Define callback function for bid responses
+    $$PREBID_GLOBAL$$.adbutlerCB = function(aBResponseObject){
+
+      var bidResponse = {},
+        callbackID = aBResponseObject.zone_id+'_'+aBResponseObject.place,
+        width = parseInt(aBResponseObject.width),
+        height = parseInt(aBResponseObject.height),
+        isCorrectSize = false,
+        isCorrectCPM = true,
+        CPM,minCPM,maxCPM,
+        bidObj = callbackData[callbackID] ? utils.getBidRequest(callbackData[callbackID].bidId) : null;
+
+      if (bidObj) {
+
+        if(aBResponseObject.status === 'SUCCESS'){
+          CPM = aBResponseObject.cpm;
+          minCPM = utils.getBidIdParamater('minCPM',bidObj.params);
+          maxCPM = utils.getBidIdParamater('maxCPM',bidObj.params);
+
+          //Ensure response CPM is within the given bounds
+          if(minCPM !== '' && CPM < parseFloat(minCPM)){
+            isCorrectCPM = false;
+          }
+          if(maxCPM !== '' && CPM > parseFloat(maxCPM)){
+            isCorrectCPM = false;
+          }
+
+          //Ensure that response ad matches one of the placement sizes.  
+          utils._each(bidObj.sizes,function(size){
+            if(width === size[0] && height === size[1]){
+              isCorrectSize = true;
+            }
+          });
+
+          if(isCorrectCPM && isCorrectSize){
+
+            bidResponse = bidfactory.createBid(1,bidObj);
+            bidResponse.bidderCode = 'adbutler';
+            bidResponse.cpm = CPM;
+            bidResponse.width = width;
+            bidResponse.height = height;
+            bidResponse.ad = aBResponseObject.ad_code;
+            bidResponse.ad += addTrackingPixels(aBResponseObject.tracking_pixels);
+
+          } else {
+
+            bidResponse = bidfactory.createBid(2,bidObj);
+            bidResponse.bidderCode = 'adbutler';
+
+          }
+        } else {
+
+          bidResponse = bidfactory.createBid(2,bidObj);
+          bidResponse.bidderCode = 'adbutler';
+
+        }  
+
+        bidmanager.addBidResponse(bidObj.placementCode, bidResponse);
+
+      }
+    };
+  }
+
+  function buildRequest(bid,adIndex,pageID){
+    var accountID = utils.getBidIdParamater('accountID', bid.params);
+    var zoneID = utils.getBidIdParamater('zoneID', bid.params);
+    var keyword = utils.getBidIdParamater('keyword', bid.params);
+
+    var requestURI = location.protocol + '//servedbyadbutler.com/adserve/;type=hbr;';
+    requestURI += 'ID='+encodeURIComponent(accountID)+';';
+    requestURI += 'setID='+encodeURIComponent(zoneID)+';';
+    requestURI += 'pid='+encodeURIComponent(pageID)+';';
+    requestURI += 'place='+encodeURIComponent(adIndex)+';';
+
+    //append the keyword for targeting if one was passed in  
+    if(keyword !== ''){
+      requestURI +='kw='+encodeURIComponent(keyword)+';';
+    }
+    requestURI += 'jsonpfunc=$$PREBID_GLOBAL$$.adbutlerCB;';
+    requestURI += 'click=CLICK_MACRO_PLACEHOLDER';
+
+    return requestURI;
+  }
+
+  function addTrackingPixels(trackingPixels){
+    var trackingPixelMarkup = '';
+    utils._each(trackingPixels,function(pixelURL){
+
+      var trackingPixel = '<img height="0" width="0" border="0" style="display:none;" src="';
+      trackingPixel += pixelURL;
+      trackingPixel += '">';
+
+      trackingPixelMarkup += trackingPixel;
+    });
+    return trackingPixelMarkup;
+  }
+
+  // Export the callBids function, so that prebid.js can execute this function
+  // when the page asks to send out bid requests.
+  return {
+    callBids: _callBids
+  };
+};
+
+module.exports = AdButlerAdapter;