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

     1  package seedingAlliance
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"net/http"
     7  	"strconv"
     8  	"strings"
     9  	"text/template"
    10  
    11  	"github.com/prebid/openrtb/v20/openrtb2"
    12  	"github.com/prebid/prebid-server/v2/adapters"
    13  	"github.com/prebid/prebid-server/v2/config"
    14  	"github.com/prebid/prebid-server/v2/errortypes"
    15  	"github.com/prebid/prebid-server/v2/macros"
    16  	"github.com/prebid/prebid-server/v2/openrtb_ext"
    17  )
    18  
    19  type adapter struct {
    20  	endpoint *template.Template
    21  }
    22  
    23  func Builder(_ openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
    24  	template, err := template.New("endpointTemplate").Parse(config.Endpoint)
    25  	if err != nil {
    26  		return nil, fmt.Errorf("unable to parse endpoint url template: %v", err)
    27  	}
    28  
    29  	bidder := &adapter{
    30  		endpoint: template,
    31  	}
    32  	return bidder, nil
    33  }
    34  
    35  func (a *adapter) MakeRequests(request *openrtb2.BidRequest, extraRequestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
    36  	var accountId string
    37  	var err error
    38  
    39  	for i := range request.Imp {
    40  		if accountId, err = getExtInfo(&request.Imp[i]); err != nil {
    41  			return nil, []error{err}
    42  		}
    43  	}
    44  
    45  	if !curExists(request.Cur, "EUR") {
    46  		request.Cur = append(request.Cur, "EUR")
    47  	}
    48  
    49  	requestJSON, err := json.Marshal(request)
    50  	if err != nil {
    51  		return nil, []error{err}
    52  	}
    53  
    54  	url, err := macros.ResolveMacros(a.endpoint, macros.EndpointTemplateParams{AccountID: accountId})
    55  	if err != nil {
    56  		return nil, []error{err}
    57  	}
    58  
    59  	requestData := &adapters.RequestData{
    60  		Method: http.MethodPost,
    61  		Uri:    url,
    62  		Body:   requestJSON,
    63  		ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
    64  	}
    65  
    66  	return []*adapters.RequestData{requestData}, nil
    67  }
    68  
    69  func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
    70  	if responseData.StatusCode == http.StatusNoContent {
    71  		return nil, nil
    72  	}
    73  
    74  	if responseData.StatusCode == http.StatusBadRequest {
    75  		err := &errortypes.BadInput{
    76  			Message: "Unexpected status code: 400. Bad request from publisher. Run with request.debug = 1 for more info.",
    77  		}
    78  		return nil, []error{err}
    79  	}
    80  
    81  	if responseData.StatusCode != http.StatusOK {
    82  		err := &errortypes.BadServerResponse{
    83  			Message: fmt.Sprintf("Unexpected status code: %d. Run with request.debug = 1 for more info.", responseData.StatusCode),
    84  		}
    85  		return nil, []error{err}
    86  	}
    87  
    88  	var response openrtb2.BidResponse
    89  	if err := json.Unmarshal(responseData.Body, &response); err != nil {
    90  		return nil, []error{err}
    91  	}
    92  
    93  	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
    94  	bidResponse.Currency = response.Cur
    95  
    96  	var errs []error
    97  
    98  	for _, seatBid := range response.SeatBid {
    99  		for i := range seatBid.Bid {
   100  			resolvePriceMacro(&seatBid.Bid[i])
   101  
   102  			bidType, err := getMediaTypeForBid(seatBid.Bid[i].Ext)
   103  			if err != nil {
   104  				errs = append(errs, err)
   105  				continue
   106  			}
   107  
   108  			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
   109  				Bid:     &seatBid.Bid[i],
   110  				BidType: bidType,
   111  			})
   112  		}
   113  	}
   114  
   115  	return bidResponse, errs
   116  }
   117  
   118  func resolvePriceMacro(bid *openrtb2.Bid) {
   119  	price := strconv.FormatFloat(bid.Price, 'f', -1, 64)
   120  	bid.AdM = strings.Replace(bid.AdM, "${AUCTION_PRICE}", price, -1)
   121  }
   122  
   123  func getMediaTypeForBid(ext json.RawMessage) (openrtb_ext.BidType, error) {
   124  	var bidExt openrtb_ext.ExtBid
   125  
   126  	if err := json.Unmarshal(ext, &bidExt); err != nil {
   127  		return "", fmt.Errorf("could not unmarshal openrtb_ext.ExtBid: %w", err)
   128  	}
   129  
   130  	if bidExt.Prebid == nil {
   131  		return "", fmt.Errorf("bid.Ext.Prebid is empty")
   132  	}
   133  
   134  	return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
   135  }
   136  
   137  func curExists(allowedCurrencies []string, newCurrency string) bool {
   138  	for i := range allowedCurrencies {
   139  		if allowedCurrencies[i] == newCurrency {
   140  			return true
   141  		}
   142  	}
   143  	return false
   144  }
   145  
   146  func getExtInfo(imp *openrtb2.Imp) (string, error) {
   147  	var ext adapters.ExtImpBidder
   148  	var extSA openrtb_ext.ImpExtSeedingAlliance
   149  
   150  	accountId := "pbs"
   151  
   152  	if err := json.Unmarshal(imp.Ext, &ext); err != nil {
   153  		return "", fmt.Errorf("could not unmarshal adapters.ExtImpBidder: %w", err)
   154  	}
   155  
   156  	if err := json.Unmarshal(ext.Bidder, &extSA); err != nil {
   157  		return "", fmt.Errorf("could not unmarshal openrtb_ext.ImpExtSeedingAlliance: %w", err)
   158  	}
   159  
   160  	imp.TagID = extSA.AdUnitID
   161  
   162  	if extSA.SeatID != "" {
   163  		accountId = extSA.SeatID
   164  	}
   165  
   166  	if extSA.AccountID != "" {
   167  		accountId = extSA.AccountID
   168  	}
   169  
   170  	return accountId, nil
   171  }