github.com/prebid/prebid-server/v2@v2.18.0/adapters/lm_kiviads/lmkiviads.go (about)

     1  package lmkiviads
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"net/http"
     7  	"text/template"
     8  
     9  	"github.com/prebid/openrtb/v20/openrtb2"
    10  	"github.com/prebid/prebid-server/v2/adapters"
    11  	"github.com/prebid/prebid-server/v2/config"
    12  	"github.com/prebid/prebid-server/v2/errortypes"
    13  	"github.com/prebid/prebid-server/v2/macros"
    14  	"github.com/prebid/prebid-server/v2/openrtb_ext"
    15  )
    16  
    17  type bidType struct {
    18  	Type string `json:"type"`
    19  }
    20  
    21  type bidExt struct {
    22  	Prebid bidType `json:"prebid"`
    23  }
    24  
    25  type adapter struct {
    26  	endpoint *template.Template
    27  }
    28  
    29  func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
    30  	tmpl, err := template.New("endpointTemplate").Parse(config.Endpoint)
    31  	if err != nil {
    32  		return nil, fmt.Errorf("unable to parse endpoint URL template: %v", err)
    33  	}
    34  
    35  	bidder := &adapter{
    36  		endpoint: tmpl,
    37  	}
    38  
    39  	return bidder, nil
    40  }
    41  
    42  func (a *adapter) buildEndpointFromRequest(imp *openrtb2.Imp) (string, error) {
    43  	var impExt adapters.ExtImpBidder
    44  	if err := json.Unmarshal(imp.Ext, &impExt); err != nil {
    45  		return "", &errortypes.BadInput{
    46  			Message: fmt.Sprintf("Failed to deserialize bidder impression extension: %v", err),
    47  		}
    48  	}
    49  
    50  	var kiviExt openrtb_ext.ExtLmKiviads
    51  	if err := json.Unmarshal(impExt.Bidder, &kiviExt); err != nil {
    52  		return "", &errortypes.BadInput{
    53  			Message: fmt.Sprintf("Failed to deserialize LmKiviads extension: %v", err),
    54  		}
    55  	}
    56  
    57  	endpointParams := macros.EndpointTemplateParams{
    58  		Host:     kiviExt.Env,
    59  		SourceId: kiviExt.Pid,
    60  	}
    61  
    62  	return macros.ResolveMacros(a.endpoint, endpointParams)
    63  }
    64  
    65  func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
    66  	var requests []*adapters.RequestData
    67  	var errs []error
    68  
    69  	headers := http.Header{}
    70  	headers.Add("Content-Type", "application/json;charset=utf-8")
    71  	headers.Add("Accept", "application/json")
    72  
    73  	requestCopy := *request
    74  	for _, imp := range request.Imp {
    75  		requestCopy.Imp = []openrtb2.Imp{imp}
    76  
    77  		endpoint, err := a.buildEndpointFromRequest(&imp)
    78  		if err != nil {
    79  			errs = append(errs, err)
    80  			continue
    81  		}
    82  
    83  		requestJSON, err := json.Marshal(requestCopy)
    84  		if err != nil {
    85  			errs = append(errs, err)
    86  			continue
    87  		}
    88  
    89  		request := &adapters.RequestData{
    90  			Method:  http.MethodPost,
    91  			Body:    requestJSON,
    92  			Uri:     endpoint,
    93  			Headers: headers,
    94  			ImpIDs:  openrtb_ext.GetImpIDs(requestCopy.Imp),
    95  		}
    96  
    97  		requests = append(requests, request)
    98  	}
    99  
   100  	return requests, errs
   101  }
   102  
   103  func (a *adapter) MakeBids(openRTBRequest *openrtb2.BidRequest, requestToBidder *adapters.RequestData, bidderRawResponse *adapters.ResponseData) (*adapters.BidderResponse, []error) {
   104  	if adapters.IsResponseStatusCodeNoContent(bidderRawResponse) {
   105  		return nil, nil
   106  	}
   107  
   108  	if bidderRawResponse.StatusCode == http.StatusServiceUnavailable {
   109  		return nil, []error{&errortypes.BadInput{
   110  			Message: "Bidder LmKiviads is unavailable. Please contact the bidder support.",
   111  		}}
   112  	}
   113  
   114  	if err := adapters.CheckResponseStatusCodeForErrors(bidderRawResponse); err != nil {
   115  		return nil, []error{err}
   116  	}
   117  
   118  	var bidResp openrtb2.BidResponse
   119  	if err := json.Unmarshal(bidderRawResponse.Body, &bidResp); err != nil {
   120  		return nil, []error{err}
   121  	}
   122  
   123  	if len(bidResp.SeatBid) == 0 {
   124  		return nil, []error{&errortypes.BadServerResponse{
   125  			Message: "Array SeatBid cannot be empty",
   126  		}}
   127  	}
   128  
   129  	return prepareBidResponse(bidResp.SeatBid)
   130  }
   131  
   132  func prepareBidResponse(seats []openrtb2.SeatBid) (*adapters.BidderResponse, []error) {
   133  	errs := []error{}
   134  	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(seats))
   135  
   136  	for _, seatBid := range seats {
   137  		for bidId, bid := range seatBid.Bid {
   138  			var bidExt bidExt
   139  			if err := json.Unmarshal(bid.Ext, &bidExt); err != nil {
   140  				errs = append(errs, &errortypes.BadServerResponse{
   141  					Message: fmt.Sprintf("Failed to parse Bid[%d].Ext: %s", bidId, err.Error()),
   142  				})
   143  				continue
   144  			}
   145  
   146  			bidType, err := openrtb_ext.ParseBidType(bidExt.Prebid.Type)
   147  			if err != nil {
   148  				errs = append(errs, &errortypes.BadServerResponse{
   149  					Message: fmt.Sprintf("Bid[%d].Ext.Prebid.Type expects one of the following values: 'banner', 'native', 'video', 'audio', got '%s'", bidId, bidExt.Prebid.Type),
   150  				})
   151  				continue
   152  			}
   153  
   154  			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
   155  				Bid:     &seatBid.Bid[bidId],
   156  				BidType: bidType,
   157  			})
   158  		}
   159  	}
   160  
   161  	return bidResponse, errs
   162  }