/
sovrn.go
320 lines (272 loc) · 7.99 KB
/
sovrn.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
package sovrn
import (
"bytes"
"context"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"net/url"
"sort"
"strconv"
"strings"
"github.com/mxmCherry/openrtb/v15/openrtb2"
"github.com/prebid/prebid-server/adapters"
"github.com/prebid/prebid-server/config"
"github.com/prebid/prebid-server/errortypes"
"github.com/prebid/prebid-server/openrtb_ext"
"github.com/prebid/prebid-server/pbs"
"golang.org/x/net/context/ctxhttp"
)
type SovrnAdapter struct {
http *adapters.HTTPAdapter
URI string
}
// Name - export adapter name */
func (s *SovrnAdapter) Name() string {
return "sovrn"
}
// FamilyName used for cookies and such
func (s *SovrnAdapter) FamilyName() string {
return "sovrn"
}
func (s *SovrnAdapter) SkipNoCookies() bool {
return false
}
// Call send bid requests to sovrn and receive responses
func (s *SovrnAdapter) Call(ctx context.Context, req *pbs.PBSRequest, bidder *pbs.PBSBidder) (pbs.PBSBidSlice, error) {
supportedMediaTypes := []pbs.MediaType{pbs.MEDIA_TYPE_BANNER}
sReq, err := adapters.MakeOpenRTBGeneric(req, bidder, s.FamilyName(), supportedMediaTypes)
if err != nil {
return nil, err
}
sovrnReq := openrtb2.BidRequest{
ID: sReq.ID,
Imp: sReq.Imp,
Site: sReq.Site,
User: sReq.User,
Regs: sReq.Regs,
}
// add tag ids to impressions
for i, unit := range bidder.AdUnits {
var params openrtb_ext.ExtImpSovrn
err = json.Unmarshal(unit.Params, ¶ms)
if err != nil {
return nil, err
}
// Fixes some segfaults. Since this is legacy code, I'm not looking into it too deeply
if len(sovrnReq.Imp) <= i {
break
}
sovrnReq.Imp[i].TagID = getTagid(params)
}
reqJSON, err := json.Marshal(sovrnReq)
if err != nil {
return nil, err
}
debug := &pbs.BidderDebug{
RequestURI: s.URI,
}
httpReq, _ := http.NewRequest("POST", s.URI, bytes.NewReader(reqJSON))
httpReq.Header.Set("Content-Type", "application/json")
if sReq.Device != nil {
addHeaderIfNonEmpty(httpReq.Header, "User-Agent", sReq.Device.UA)
addHeaderIfNonEmpty(httpReq.Header, "X-Forwarded-For", sReq.Device.IP)
addHeaderIfNonEmpty(httpReq.Header, "Accept-Language", sReq.Device.Language)
if sReq.Device.DNT != nil {
addHeaderIfNonEmpty(httpReq.Header, "DNT", strconv.Itoa(int(*sReq.Device.DNT)))
}
}
if sReq.User != nil {
userID := strings.TrimSpace(sReq.User.BuyerUID)
if len(userID) > 0 {
httpReq.AddCookie(&http.Cookie{Name: "ljt_reader", Value: userID})
}
}
sResp, err := ctxhttp.Do(ctx, s.http.Client, httpReq)
if err != nil {
return nil, err
}
defer sResp.Body.Close()
debug.StatusCode = sResp.StatusCode
if sResp.StatusCode == http.StatusNoContent {
return nil, nil
}
body, err := ioutil.ReadAll(sResp.Body)
if err != nil {
return nil, err
}
responseBody := string(body)
if sResp.StatusCode == http.StatusBadRequest {
return nil, &errortypes.BadInput{
Message: fmt.Sprintf("HTTP status %d; body: %s", sResp.StatusCode, responseBody),
}
}
if sResp.StatusCode != http.StatusOK {
return nil, &errortypes.BadServerResponse{
Message: fmt.Sprintf("HTTP status %d; body: %s", sResp.StatusCode, responseBody),
}
}
if req.IsDebug {
debug.RequestBody = string(reqJSON)
bidder.Debug = append(bidder.Debug, debug)
debug.ResponseBody = responseBody
}
var bidResp openrtb2.BidResponse
err = json.Unmarshal(body, &bidResp)
if err != nil {
return nil, &errortypes.BadServerResponse{
Message: err.Error(),
}
}
bids := make(pbs.PBSBidSlice, 0)
for _, sb := range bidResp.SeatBid {
for _, bid := range sb.Bid {
bidID := bidder.LookupBidID(bid.ImpID)
if bidID == "" {
return nil, &errortypes.BadServerResponse{
Message: fmt.Sprintf("Unknown ad unit code '%s'", bid.ImpID),
}
}
adm, _ := url.QueryUnescape(bid.AdM)
pbid := pbs.PBSBid{
BidID: bidID,
AdUnitCode: bid.ImpID,
BidderCode: bidder.BidderCode,
Price: bid.Price,
Adm: adm,
Creative_id: bid.CrID,
Width: bid.W,
Height: bid.H,
DealId: bid.DealID,
NURL: bid.NURL,
}
bids = append(bids, &pbid)
}
}
sort.Sort(bids)
return bids, nil
}
func (s *SovrnAdapter) MakeRequests(request *openrtb2.BidRequest, reqInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
errs := make([]error, 0, len(request.Imp))
for i := 0; i < len(request.Imp); i++ {
_, err := preprocess(&request.Imp[i])
if err != nil {
errs = append(errs, err)
request.Imp = append(request.Imp[:i], request.Imp[i+1:]...)
i--
}
}
// If all the requests were malformed, don't bother making a server call with no impressions.
if len(request.Imp) == 0 {
return nil, errs
}
reqJSON, err := json.Marshal(request)
if err != nil {
errs = append(errs, err)
return nil, errs
}
headers := http.Header{}
headers.Add("Content-Type", "application/json")
if request.Device != nil {
addHeaderIfNonEmpty(headers, "User-Agent", request.Device.UA)
addHeaderIfNonEmpty(headers, "X-Forwarded-For", request.Device.IP)
addHeaderIfNonEmpty(headers, "Accept-Language", request.Device.Language)
if request.Device.DNT != nil {
addHeaderIfNonEmpty(headers, "DNT", strconv.Itoa(int(*request.Device.DNT)))
}
}
if request.User != nil {
userID := strings.TrimSpace(request.User.BuyerUID)
if len(userID) > 0 {
headers.Add("Cookie", fmt.Sprintf("%s=%s", "ljt_reader", userID))
}
}
return []*adapters.RequestData{{
Method: "POST",
Uri: s.URI,
Body: reqJSON,
Headers: headers,
}}, errs
}
func addHeaderIfNonEmpty(headers http.Header, headerName string, headerValue string) {
if len(headerValue) > 0 {
headers.Add(headerName, headerValue)
}
}
func (s *SovrnAdapter) MakeBids(internalRequest *openrtb2.BidRequest, externalRequest *adapters.RequestData, response *adapters.ResponseData) (*adapters.BidderResponse, []error) {
if response.StatusCode == http.StatusNoContent {
return nil, nil
}
if response.StatusCode == http.StatusBadRequest {
return nil, []error{&errortypes.BadInput{
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 openrtb2.BidResponse
if err := json.Unmarshal(response.Body, &bidResp); err != nil {
return nil, []error{&errortypes.BadServerResponse{
Message: err.Error(),
}}
}
bidResponse := adapters.NewBidderResponseWithBidsCapacity(5)
for _, sb := range bidResp.SeatBid {
for i := 0; i < len(sb.Bid); i++ {
bid := sb.Bid[i]
adm, err := url.QueryUnescape(bid.AdM)
if err == nil {
bid.AdM = adm
bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
Bid: &bid,
BidType: openrtb_ext.BidTypeBanner,
})
}
}
}
return bidResponse, nil
}
func preprocess(imp *openrtb2.Imp) (string, error) {
var bidderExt adapters.ExtImpBidder
if err := json.Unmarshal(imp.Ext, &bidderExt); err != nil {
return "", &errortypes.BadInput{
Message: err.Error(),
}
}
var sovrnExt openrtb_ext.ExtImpSovrn
if err := json.Unmarshal(bidderExt.Bidder, &sovrnExt); err != nil {
return "", &errortypes.BadInput{
Message: err.Error(),
}
}
imp.TagID = getTagid(sovrnExt)
if imp.BidFloor == 0 && sovrnExt.BidFloor > 0 {
imp.BidFloor = sovrnExt.BidFloor
}
return imp.TagID, nil
}
func getTagid(sovrnExt openrtb_ext.ExtImpSovrn) string {
if len(sovrnExt.Tagid) > 0 {
return sovrnExt.Tagid
} else {
return sovrnExt.TagId
}
}
// NewSovrnLegacyAdapter create a new SovrnAdapter instance
func NewSovrnLegacyAdapter(config *adapters.HTTPAdapterConfig, endpoint string) *SovrnAdapter {
return &SovrnAdapter{
http: adapters.NewHTTPAdapter(config),
URI: endpoint,
}
}
// Builder builds a new instance of the Sovrn adapter for the given bidder with the given config.
func Builder(bidderName openrtb_ext.BidderName, config config.Adapter) (adapters.Bidder, error) {
bidder := &SovrnAdapter{
URI: config.Endpoint,
}
return bidder, nil
}