New Adapter: Nativery

src/main/java/org/prebid/server/bidder/nativery/NativeryBidder.java

@@ -0,0 +1,271 @@
+package org.prebid.server.bidder.nativery;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.iab.openrtb.request.BidRequest;
+import com.iab.openrtb.request.Imp;
+import com.iab.openrtb.response.Bid;
+import com.iab.openrtb.response.BidResponse;
+import com.iab.openrtb.response.SeatBid;
+import io.vertx.core.MultiMap;
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.prebid.server.bidder.Bidder;
+import org.prebid.server.bidder.model.BidderBid;
+import org.prebid.server.bidder.model.BidderCall;
+import org.prebid.server.bidder.model.BidderError;
+import org.prebid.server.bidder.model.HttpRequest;
+import org.prebid.server.bidder.model.Result;
+import org.prebid.server.exception.PreBidException;
+import org.prebid.server.json.DecodeException;
+import org.prebid.server.json.JacksonMapper;
+import org.prebid.server.proto.openrtb.ext.ExtPrebid;
+import org.prebid.server.proto.openrtb.ext.request.ExtRequest;
+import org.prebid.server.proto.openrtb.ext.request.ExtSite;
+import org.prebid.server.proto.openrtb.ext.request.nativery.ExtImpNativery;
+import org.prebid.server.proto.openrtb.ext.response.BidType;
+import org.prebid.server.proto.openrtb.ext.response.ExtBidPrebid;
+import org.prebid.server.proto.openrtb.ext.response.ExtBidPrebidMeta;
+import org.prebid.server.util.BidderUtil;
+import org.prebid.server.util.HttpUtil;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+import java.util.Objects;
+
+public class NativeryBidder implements Bidder<BidRequest> {
+
+    private static final TypeReference<ExtPrebid<?, ExtImpNativery>> NATIVERY_EXT_TYPE_REFERENCE =
+            new TypeReference<>() {
+            };
+
+    private static final TypeReference<ExtPrebid<ExtBidPrebid, ?>> EXT_PREBID_TYPE_REFERENCE =
+            new TypeReference<>() {
+            };
+
+    private static final String DEFAULT_CURRENCY = "EUR";
+    private static final String NATIVERY_ERROR_HEADER = "X-Nativery-Error";
+
+    private final String endpointUrl;
+    private final JacksonMapper mapper;
+
+    public NativeryBidder(String endpointUrl, JacksonMapper mapper) {
+        this.endpointUrl = HttpUtil.validateUrl(Objects.requireNonNull(endpointUrl));
+        this.mapper = Objects.requireNonNull(mapper);
+    }
+
+    @Override
+    public Result<List<HttpRequest<BidRequest>>> makeHttpRequests(BidRequest request) {
+        final List<HttpRequest<BidRequest>> httpRequests = new ArrayList<>();
+        final List<BidderError> errors = new ArrayList<>();
+
+        final boolean isAmp = isAmpRequest(request);
+
+        final List<Imp> validImps = new ArrayList<>();
+        String widgetId = null;
+
+        for (Imp imp : request.getImp()) {
+            try {
+                final ExtImpNativery extImp = parseImpExt(imp);
+                if (widgetId == null && extImp != null && StringUtils.isNotBlank(extImp.getWidgetId())) {
+                    widgetId = extImp.getWidgetId();
+                }
+                validImps.add(imp);
+            } catch (PreBidException e) {
+                errors.add(BidderError.badInput(e.getMessage()));
+            }
+        }
+
+        if (validImps.isEmpty()) {
+            return Result.of(Collections.emptyList(), errors);
+        }
+
+        final ExtRequest updatedExt = buildRequestExtWithNativery(request.getExt(), isAmp, widgetId);
+
+        for (Imp imp : validImps) {
+            final BidRequest singleImpRequest = request.toBuilder()
+                    .imp(Collections.singletonList(imp))
+                    .ext(updatedExt)
+                    .cur(Collections.singletonList(DEFAULT_CURRENCY))
+                    .build();
+
+            httpRequests.add(BidderUtil.defaultRequest(singleImpRequest, endpointUrl, mapper));
+        }
+
+        return Result.of(httpRequests, errors);
+    }
+
+    private ExtImpNativery parseImpExt(Imp imp) {
+        try {
+            final ExtPrebid<?, ExtImpNativery> ext =
+                    mapper.mapper().convertValue(imp.getExt(), NATIVERY_EXT_TYPE_REFERENCE);
+            return ext != null ? ext.getBidder() : null;
+        } catch (IllegalArgumentException e) {
+            throw new PreBidException(e.getMessage());
+        }
+    }
+
+    private ExtRequest buildRequestExtWithNativery(ExtRequest originalExt, boolean isAmp, String widgetId) {
+        final ObjectNode extNode = mapper.mapper().convertValue(originalExt, ObjectNode.class);
+        final ObjectNode root = extNode != null ? extNode : mapper.mapper().createObjectNode();
+
+        final ObjectNode nativeryNode = root.with("nativery");
+        nativeryNode.put("isAmp", isAmp);
+        if (widgetId != null) {
+            nativeryNode.put("widgetId", widgetId);
+        }
+
+        return mapper.mapper().convertValue(root, ExtRequest.class);
+    }
+
+    private boolean isAmpRequest(BidRequest request) {
+        if (request.getSite() == null || request.getSite().getExt() == null) {
+            return false;
+        }
+        try {
+            final ExtSite extSite = mapper.mapper().convertValue(request.getSite().getExt(), ExtSite.class);
+            final Integer amp = extSite != null ? extSite.getAmp() : null;
+            return amp != null && amp == 1;
+        } catch (Exception e) {
+            return false;
+        }
+    }
+
+    @Override
+    public Result<List<BidderBid>> makeBids(BidderCall<BidRequest> httpCall, BidRequest bidRequest) {
+        final List<BidderError> errors = new ArrayList<>();
+
+        if (httpCall.getResponse() != null && httpCall.getResponse().getStatusCode() == 204) {
+            final MultiMap headers = httpCall.getResponse().getHeaders();
+            final String nativeryErr = headers != null ? headers.get(NATIVERY_ERROR_HEADER) : null;
+            if (StringUtils.isNotBlank(nativeryErr)) {
+                return Result.withError(BidderError.badInput("Nativery Error: " + nativeryErr + "."));
+            }
+            return Result.withError(BidderError.badServerResponse("No Content"));
+        }
+
+        try {
+            final BidResponse bidResponse = mapper.decodeValue(httpCall.getResponse().getBody(), BidResponse.class);
+            final List<BidderBid> bidderBids = extractBids(bidResponse, errors);
+            return Result.of(bidderBids, errors);
+        } catch (DecodeException e) {
+            return Result.withError(BidderError.badServerResponse(e.getMessage()));
+        }
+    }
+
+    private List<BidderBid> extractBids(BidResponse bidResponse, List<BidderError> errors) {
+        if (bidResponse == null || CollectionUtils.isEmpty(bidResponse.getSeatbid())) {
+            return Collections.emptyList();
+        }
+
+        final String currency = StringUtils.defaultIfBlank(bidResponse.getCur(), DEFAULT_CURRENCY);
+
+        return bidResponse.getSeatbid().stream()
+                .filter(Objects::nonNull)
+                .map(SeatBid::getBid)
+                .filter(Objects::nonNull)
+                .flatMap(Collection::stream)
+                .filter(Objects::nonNull)
+                .map(bid -> resolveBidderBid(bid, currency, errors))
+                .filter(Objects::nonNull)
+                .toList();
+    }
+
+    private BidderBid resolveBidderBid(Bid bid, String currency, List<BidderError> errors) {
+        try {
+            final ObjectNode nativeryExt = extractNativeryExt(bid.getExt());
+            final String mediaTypeRaw = getText(nativeryExt, "bid_ad_media_type");
+            final BidType bidType = mapMediaType(mediaTypeRaw);
+
+            final List<String> advDomains = readStringArray(nativeryExt, "bid_adv_domains");
+            final Bid updatedBid = addBidMeta(bid, mediaTypeString(bidType), advDomains);
+
+            return BidderBid.of(updatedBid, bidType, currency);
+        } catch (PreBidException e) {
+            errors.add(BidderError.badInput(e.getMessage()));
+            return null;
+        }
+    }
+
+    private ObjectNode extractNativeryExt(ObjectNode bidExt) {
+        if (bidExt == null) {
+            throw new PreBidException("missing bid.ext");
+        }
+        final JsonNode node = bidExt.get("nativery");
+        if (!(node instanceof ObjectNode nativeryNode)) {
+            throw new PreBidException("missing bid.ext.nativery");
+        }
+        return nativeryNode;
+    }
+
+    private static String getText(ObjectNode node, String field) {
+        final JsonNode v = node.get(field);
+        return v != null && v.isTextual() ? v.asText() : null;
+    }
+
+    private static List<String> readStringArray(ObjectNode node, String field) {
+        final JsonNode arr = node.get(field);
+        if (arr == null || !arr.isArray()) {
+            return Collections.emptyList();
+        }
+        final List<String> out = new ArrayList<>();
+        arr.forEach(e -> {
+            if (e != null && e.isTextual()) {
+                out.add(e.asText());
+            }
+        });
+        return out;
+    }
+
+    private static BidType mapMediaType(String mediaType) {
+        final String mt = StringUtils.defaultString(mediaType).toLowerCase();
+        return switch (mt) {
+            case "native" -> BidType.xNative;
+            case "display", "banner", "rich_media" -> BidType.banner;
+            case "video" -> BidType.video;
+            default -> throw new PreBidException(
+                    "unrecognized bid_ad_media_type in response from nativery: " + mediaType);
+        };
+    }
+
+    private static String mediaTypeString(BidType type) {
+        return switch (type) {
+            case banner -> "banner";
+            case video -> "video";
+            case xNative -> "native";
+            default -> throw new IllegalStateException("Unexpected value: " + type);
+        };
+    }
+
+    private Bid addBidMeta(Bid bid, String mediaType, List<String> advDomains) {
+        final ExtBidPrebid prebid = parseExtBidPrebid(bid);
+
+        final ExtBidPrebidMeta modifiedMeta = (prebid != null && prebid.getMeta() != null
+                ? prebid.getMeta().toBuilder()
+                : ExtBidPrebidMeta.builder())
+                .mediaType(mediaType)
+                .advertiserDomains(advDomains)
+                .build();
+
+        final ExtBidPrebid modifiedPrebid = (prebid != null ? prebid.toBuilder() : ExtBidPrebid.builder())
+                .meta(modifiedMeta)
+                .build();
+
+        return bid.toBuilder()
+                .ext(mapper.mapper().valueToTree(ExtPrebid.of(modifiedPrebid, null)))
+                .build();
+    }
+
+    private ExtBidPrebid parseExtBidPrebid(Bid bid) {
+        try {
+            return mapper.mapper()
+                    .convertValue(bid.getExt(), EXT_PREBID_TYPE_REFERENCE)
+                    .getPrebid();
+        } catch (IllegalArgumentException e) {
+            return null;
+        }
+    }
+}

src/main/java/org/prebid/server/proto/openrtb/ext/request/nativery/ExtImpNativery.java

@@ -0,0 +1,11 @@
+package org.prebid.server.proto.openrtb.ext.request.nativery;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Value;
+
+@Value(staticConstructor = "of")
+public class ExtImpNativery {
+
+    @JsonProperty("widgetId")
+    String widgetId;
+}

src/main/java/org/prebid/server/spring/config/bidder/NativeryBidderConfiguration.java

@@ -0,0 +1,41 @@
+package org.prebid.server.spring.config.bidder;
+
+import org.prebid.server.bidder.BidderDeps;
+import org.prebid.server.bidder.nativery.NativeryBidder;
+import org.prebid.server.json.JacksonMapper;
+import org.prebid.server.spring.config.bidder.model.BidderConfigurationProperties;
+import org.prebid.server.spring.config.bidder.util.BidderDepsAssembler;
+import org.prebid.server.spring.config.bidder.util.UsersyncerCreator;
+import org.prebid.server.spring.env.YamlPropertySourceFactory;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.context.annotation.PropertySource;
+
+import jakarta.validation.constraints.NotBlank;
+
+@Configuration
+@PropertySource(value = "classpath:/bidder-config/nativery.yaml", factory = YamlPropertySourceFactory.class)
+public class NativeryBidderConfiguration {
+
+    private static final String BIDDER_NAME = "nativery";
+
+    @Bean("nativeryConfigurationProperties")
+    @ConfigurationProperties("adapters.nativery")
+    BidderConfigurationProperties configurationProperties() {
+        return new BidderConfigurationProperties();
+    }
+
+    @Bean
+    BidderDeps nativeryBidderDeps(BidderConfigurationProperties nativeryConfigurationProperties,
+                               @NotBlank @Value("${external-url}") String externalUrl,
+                               JacksonMapper mapper) {
+
+        return BidderDepsAssembler.forBidder(BIDDER_NAME)
+                .withConfig(nativeryConfigurationProperties)
+                .usersyncerCreator(UsersyncerCreator.create(externalUrl))
+                .bidderCreator(config -> new NativeryBidder(config.getEndpoint(), mapper))
+                .assemble();
+    }
+}

src/main/resources/bidder-config/nativery.yaml

@@ -0,0 +1,12 @@
+adapters:
+  nativery:
+    endpoint: "https://hb.nativery.com/openrtb2/auction"
+    ortb-version: "2.6"
+    meta-info:
+      maintainer-email: "[email protected]"
+      site-media-types:
+        - banner
+        - video
+        - native
+      supported-vendors: []
+      vendor-id: 0

src/main/resources/static/bidder-params/nativery.json

@@ -0,0 +1,15 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Nativery Adapter Params",
+  "description": "A schema which validates params accepted by the Nativery adapter",
+
+  "type": "object",
+  "properties": {
+    "widgetId": {
+      "type": "string",
+      "description": "An ID which identifies this Nativery widget"
+    }
+  },
+
+  "required": ["widgetId"]
+}