github.com/prebid/prebid-server@v0.275.0/adapters/nanointeractive/nanointeractive.go (about)

     1  package nanointeractive
     2  
     3  import (
     4  	"encoding/json"
     5  	"fmt"
     6  	"net/http"
     7  
     8  	"github.com/prebid/openrtb/v19/openrtb2"
     9  	"github.com/prebid/prebid-server/adapters"
    10  	"github.com/prebid/prebid-server/config"
    11  	"github.com/prebid/prebid-server/errortypes"
    12  	"github.com/prebid/prebid-server/openrtb_ext"
    13  )
    14  
    15  type NanoInteractiveAdapter struct {
    16  	endpoint string
    17  }
    18  
    19  func (a *NanoInteractiveAdapter) MakeRequests(bidRequest *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
    20  
    21  	var errs []error
    22  	var validImps []openrtb2.Imp
    23  
    24  	var adapterRequests []*adapters.RequestData
    25  	var referer string = ""
    26  
    27  	for i := 0; i < len(bidRequest.Imp); i++ {
    28  
    29  		ref, err := checkImp(&bidRequest.Imp[i])
    30  
    31  		// If the parsing is failed, remove imp and add the error.
    32  		if err != nil {
    33  			errs = append(errs, err)
    34  			continue
    35  		}
    36  		if referer == "" && ref != "" {
    37  			referer = ref
    38  		}
    39  		validImps = append(validImps, bidRequest.Imp[i])
    40  	}
    41  
    42  	if len(validImps) == 0 {
    43  		errs = append(errs, fmt.Errorf("no impressions in the bid request"))
    44  		return nil, errs
    45  	}
    46  
    47  	// set referer origin
    48  	if referer != "" {
    49  		if bidRequest.Site == nil {
    50  			bidRequest.Site = &openrtb2.Site{}
    51  		}
    52  		bidRequest.Site.Ref = referer
    53  	}
    54  
    55  	bidRequest.Imp = validImps
    56  
    57  	reqJSON, err := json.Marshal(bidRequest)
    58  	if err != nil {
    59  		errs = append(errs, err)
    60  		return nil, errs
    61  	}
    62  
    63  	headers := http.Header{}
    64  	headers.Add("Content-Type", "application/json;charset=utf-8")
    65  	headers.Add("Accept", "application/json")
    66  	headers.Add("x-openrtb-version", "2.5")
    67  	if bidRequest.Device != nil {
    68  		headers.Add("User-Agent", bidRequest.Device.UA)
    69  		headers.Add("X-Forwarded-For", bidRequest.Device.IP)
    70  	}
    71  	if bidRequest.Site != nil {
    72  		headers.Add("Referer", bidRequest.Site.Page)
    73  	}
    74  
    75  	// set user's cookie
    76  	if bidRequest.User != nil && bidRequest.User.BuyerUID != "" {
    77  		headers.Add("Cookie", "Nano="+bidRequest.User.BuyerUID)
    78  	}
    79  
    80  	adapterRequests = append(adapterRequests, &adapters.RequestData{
    81  		Method:  "POST",
    82  		Uri:     a.endpoint,
    83  		Body:    reqJSON,
    84  		Headers: headers,
    85  	})
    86  
    87  	return adapterRequests, errs
    88  }
    89  
    90  func (a *NanoInteractiveAdapter) MakeBids(
    91  	internalRequest *openrtb2.BidRequest,
    92  	externalRequest *adapters.RequestData,
    93  	response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
    94  
    95  	if response.StatusCode == http.StatusNoContent {
    96  		return nil, nil
    97  	} else if response.StatusCode == http.StatusBadRequest {
    98  		return nil, []error{&errortypes.BadInput{
    99  			Message: "Invalid request.",
   100  		}}
   101  	} else if response.StatusCode != http.StatusOK {
   102  		return nil, []error{&errortypes.BadServerResponse{
   103  			Message: fmt.Sprintf("unexpected HTTP status %d.", response.StatusCode),
   104  		}}
   105  	}
   106  
   107  	var openRtbBidResponse openrtb2.BidResponse
   108  
   109  	if err := json.Unmarshal(response.Body, &openRtbBidResponse); err != nil {
   110  		return nil, []error{&errortypes.BadServerResponse{
   111  			Message: fmt.Sprintf("bad server body response"),
   112  		}}
   113  	}
   114  
   115  	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(openRtbBidResponse.SeatBid[0].Bid))
   116  	bidResponse.Currency = openRtbBidResponse.Cur
   117  
   118  	sb := openRtbBidResponse.SeatBid[0]
   119  	for i := 0; i < len(sb.Bid); i++ {
   120  		if !(sb.Bid[i].Price > 0) {
   121  			continue
   122  		}
   123  		bid := sb.Bid[i]
   124  		bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
   125  			Bid:     &bid,
   126  			BidType: openrtb_ext.BidTypeBanner,
   127  		})
   128  	}
   129  	return bidResponse, nil
   130  }
   131  
   132  func checkImp(imp *openrtb2.Imp) (string, error) {
   133  	// We support only banner impression
   134  	if imp.Banner == nil {
   135  		return "", fmt.Errorf("invalid MediaType. NanoInteractive only supports Banner type. ImpID=%s", imp.ID)
   136  	}
   137  
   138  	var bidderExt adapters.ExtImpBidder
   139  	if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
   140  		return "", fmt.Errorf("ext not provided; ImpID=%s", imp.ID)
   141  	}
   142  
   143  	var nanoExt openrtb_ext.ExtImpNanoInteractive
   144  	if err := json.Unmarshal(bidderExt.Bidder, &nanoExt); err != nil {
   145  		return "", fmt.Errorf("ext.bidder not provided; ImpID=%s", imp.ID)
   146  	}
   147  	if nanoExt.Pid == "" {
   148  		return "", fmt.Errorf("pid is empty; ImpID=%s", imp.ID)
   149  	}
   150  
   151  	if nanoExt.Ref != "" {
   152  		return string(nanoExt.Ref), nil
   153  	}
   154  
   155  	return "", nil
   156  }
   157  
   158  // Builder builds a new instance of the NanoInteractive adapter for the given bidder with the given config.
   159  func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
   160  	bidder := &NanoInteractiveAdapter{
   161  		endpoint: config.Endpoint,
   162  	}
   163  	return bidder, nil
   164  }