New colossus adapter [Clean branch] (prebid#1495)

Co-authored-by: Aiholkin <artem.iholkin@smartyads.com>

adapters/colossus/colossus.go

@@ -0,0 +1,137 @@
+package colossus
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+
+	"github.com/buger/jsonparser"
+	"github.com/mxmCherry/openrtb"
+	"github.com/prebid/prebid-server/adapters"
+	"github.com/prebid/prebid-server/errortypes"
+	"github.com/prebid/prebid-server/openrtb_ext"
+)
+
+type ColossusAdapter struct {
+	URI string
+}
+
+// NewColossusBidder Initializes the Bidder
+func NewColossusBidder(endpoint string) *ColossusAdapter {
+	return &ColossusAdapter{
+		URI: endpoint,
+	}
+}
+
+// MakeRequests create bid request for colossus demand
+func (a *ColossusAdapter) MakeRequests(request *openrtb.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	var errs []error
+	var err error
+	var tagID string
+
+	var adapterRequests []*adapters.RequestData
+
+	reqCopy := *request
+	for _, imp := range request.Imp {
+		reqCopy.Imp = []openrtb.Imp{imp}
+
+		tagID, err = jsonparser.GetString(reqCopy.Imp[0].Ext, "bidder", "TagID")
+		if err != nil {
+			errs = append(errs, err)
+			continue
+		}
+
+		reqCopy.Imp[0].TagID = tagID
+
+		adapterReq, errors := a.makeRequest(&reqCopy)
+		if adapterReq != nil {
+			adapterRequests = append(adapterRequests, adapterReq)
+		}
+		errs = append(errs, errors...)
+	}
+	return adapterRequests, errs
+}
+
+func (a *ColossusAdapter) makeRequest(request *openrtb.BidRequest) (*adapters.RequestData, []error) {
+
+	var errs []error
+
+	reqJSON, err := json.Marshal(request)
+
+	if err != nil {
+		errs = append(errs, err)
+		return nil, errs
+	}
+
+	headers := http.Header{}
+	headers.Add("Content-Type", "application/json;charset=utf-8")
+	headers.Add("Accept", "application/json")
+	return &adapters.RequestData{
+		Method:  "POST",
+		Uri:     a.URI,
+		Body:    reqJSON,
+		Headers: headers,
+	}, errs
+}
+
+// MakeBids makes the bids
+func (a *ColossusAdapter) MakeBids(internalRequest *openrtb.BidRequest, externalRequest *adapters.RequestData, response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	var errs []error
+
+	if response.StatusCode == http.StatusNoContent {
+		return nil, nil
+	}
+
+	if response.StatusCode == http.StatusNotFound {
+		return nil, []error{&errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
+		}}
+	}
+
+	if response.StatusCode != http.StatusOK {
+		return nil, []error{&errortypes.BadServerResponse{
+			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info", response.StatusCode),
+		}}
+	}
+
+	var bidResp openrtb.BidResponse
+
+	if err := json.Unmarshal(response.Body, &bidResp); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(1)
+
+	for _, sb := range bidResp.SeatBid {
+		for i := range sb.Bid {
+			bidType, err := getMediaTypeForImp(sb.Bid[i].ImpID, internalRequest.Imp)
+			if err != nil {
+				errs = append(errs, err)
+			} else {
+				b := &adapters.TypedBid{
+					Bid:     &sb.Bid[i],
+					BidType: bidType,
+				}
+				bidResponse.Bids = append(bidResponse.Bids, b)
+			}
+		}
+	}
+	return bidResponse, errs
+}
+
+func getMediaTypeForImp(impID string, imps []openrtb.Imp) (openrtb_ext.BidType, error) {
+	mediaType := openrtb_ext.BidTypeBanner
+	for _, imp := range imps {
+		if imp.ID == impID {
+			if imp.Banner == nil && imp.Video != nil {
+				mediaType = openrtb_ext.BidTypeVideo
+			}
+			return mediaType, nil
+		}
+	}
+
+	// This shouldnt happen. Lets handle it just incase by returning an error.
+	return "", &errortypes.BadInput{
+		Message: fmt.Sprintf("Failed to find impression \"%s\" ", impID),
+	}
+}

adapters/colossus/colossus_test.go

@@ -0,0 +1,12 @@
+package colossus
+
+import (
+	"testing"
+
+	"github.com/prebid/prebid-server/adapters/adapterstest"
+)
+
+func TestJsonSamples(t *testing.T) {
+	colossusAdapter := NewColossusBidder("http://example.com/?c=o&m=rtb")
+	adapterstest.RunJSONBidderTest(t, "colossustest", colossusAdapter)
+}

adapters/colossus/colossustest/exemplary/simple-banner.json

@@ -0,0 +1,132 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+        {
+            "id": "test-imp-id",
+            "banner": {
+                "format": [
+                    {
+                        "w": 300,
+                        "h": 250
+                    },
+                    {
+                        "w": 300,
+                        "h": 600
+                    }
+                ]
+            },
+            "tagid": "61317",
+            "ext": {
+                "bidder": {
+                    "TagID": "61317"
+                }
+            }
+        }
+    ],
+    "app": {
+        "id": "1",
+        "bundle": "com.wls.testwlsapplication"
+    },
+    "device": {
+        "ip": "123.123.123.123",
+        "ifa": "zxcjbzxmc-zxcbmz-zxbcz-zxczx"
+    }
+},
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://example.com/?c=o&m=rtb",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+              {
+                  "id": "test-imp-id",
+                  "banner": {
+                      "format": [
+                          {
+                              "w": 300,
+                              "h": 250
+                          },
+                          {
+                              "w": 300,
+                              "h": 600
+                          }
+                      ]
+                  },
+                  "tagid": "61317",
+                  "ext": {
+                      "bidder": {
+                          "TagID": "61317"
+                      }
+                  }
+              }
+          ],
+          "app": {
+              "id": "1",
+              "bundle": "com.wls.testwlsapplication"
+          },
+          "device": {
+              "ip": "123.123.123.123",
+              "ifa": "zxcjbzxmc-zxcbmz-zxbcz-zxczx"
+          }
+      }
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "id": "test-request-id",
+          "seatbid": [
+              {
+                  "bid": [
+                      {
+                          "id": "test_bid_id",
+                          "impid": "test-imp-id",
+                          "price": 0.27543,
+                          "adm": "<iframe id=\"adm-banner-16\" width=\"300\" height=\"250\" frameborder=\"0\" marginheight=\"0\" marginwidth=\"0\" style=\"{overflow:hidden}\" src=\"https://colossusssp.com/?c=o&m=adm&k=882b2510ed6d6c94fa69c99aa522a708\"></iframe>",
+                          "cid": "test_cid",
+                          "crid": "test_crid",
+                          "dealid": "test_dealid",
+                          "w": 300,
+                          "h": 250,
+                          "ext": {
+                              "prebid": {
+                                  "type": "banner"
+                              }
+                          }
+                      }
+                  ]
+              }
+          ]
+        }
+      }
+    }
+  ],
+
+  "expectedBidResponses": [
+    {
+      "bids":[
+        {
+          "bid":  {
+            "id": "test_bid_id",
+            "impid": "test-imp-id",
+            "price": 0.27543,
+            "adm": "<iframe id=\"adm-banner-16\" width=\"300\" height=\"250\" frameborder=\"0\" marginheight=\"0\" marginwidth=\"0\" style=\"{overflow:hidden}\" src=\"https://colossusssp.com/?c=o&m=adm&k=882b2510ed6d6c94fa69c99aa522a708\"></iframe>",
+            "cid": "test_cid",
+            "crid": "test_crid",
+            "dealid": "test_dealid",
+            "w": 300,
+            "h": 250,
+            "ext": {
+              "prebid": {
+                "type": "banner"
+              }
+            }
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}