Port Floxis: New Adapter

src/main/java/org/prebid/server/bidder/floxis/FloxisBidder.java

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+package org.prebid.server.bidder.floxis;
+
+import com.fasterxml.jackson.core.type.TypeReference;
+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.http.HttpMethod;
+import org.apache.commons.collections4.CollectionUtils;
+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.floxis.ExtImpFloxis;
+import org.prebid.server.proto.openrtb.ext.response.BidType;
+import org.prebid.server.util.BidderUtil;
+import org.prebid.server.util.HttpUtil;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.regex.Pattern;
+
+public class FloxisBidder implements Bidder<BidRequest> {
+
+    private static final TypeReference<ExtPrebid<?, ExtImpFloxis>> FLOXIS_EXT_TYPE_REFERENCE =
+            new TypeReference<>() {
+            };
+
+    private static final String HOST_MACRO = "{{Host}}";
+    private static final String SEAT_MACRO = "{{SeatId}}";
+
+    private static final String DEFAULT_REGION = "us-e";
+    private static final String DEFAULT_PARTNER = "floxis";
+
+    // region/partner are interpolated into the request host, so each must be a valid DNS label —
+    // otherwise a value carrying URL delimiters could rewrite the request origin.
+    private static final Pattern HOST_LABEL = Pattern.compile("^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$");
+
+    private final String endpointUrl;
+    private final JacksonMapper mapper;
+
+    public FloxisBidder(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) {
+        if (CollectionUtils.isEmpty(request.getImp())) {
+            return Result.withError(BidderError.badInput("no impressions in the bid request"));
+        }
+
+        final String uri;
+        try {
+            uri = resolveUrl(endpointUrl, resolveCommonImpExt(request.getImp()));
+        } catch (PreBidException e) {
+            return Result.withError(BidderError.badInput(e.getMessage()));
+        }
+
+        // The request body is forwarded unchanged; no caller-owned struct is mutated.
+        return Result.withValue(HttpRequest.<BidRequest>builder()
+                .method(HttpMethod.POST)
+                .uri(uri)
+                .headers(HttpUtil.headers())
+                .impIds(BidderUtil.impIds(request))
+                .payload(request)
+                .body(mapper.encodeToBytes(request))
+                .build());
+    }
+
+    // A single request routes to one Floxis host/seat (the seat is the URL query key, partner+region
+    // the host). All imps must therefore share the same seat, region and partner; a mismatch is a
+    // misconfigured request rather than something to silently route on imp[0]'s key.
+    private ExtImpFloxis resolveCommonImpExt(List<Imp> imps) {
+        final ExtImpFloxis first = parseImpExt(imps.getFirst());
+        for (Imp imp : imps.subList(1, imps.size())) {
+            final ExtImpFloxis current = parseImpExt(imp);
+            if (!Objects.equals(current.getSeat(), first.getSeat())
+                    || !Objects.equals(current.getRegion(), first.getRegion())
+                    || !Objects.equals(current.getPartner(), first.getPartner())) {
+                throw new PreBidException(
+                        "all impressions must target the same Floxis seat, region and partner; "
+                                + "imp %s differs from imp %s"
+                                .formatted(imp.getId(), imps.getFirst().getId()));
+            }
+        }
+        return first;
+    }
+
+    private ExtImpFloxis parseImpExt(Imp imp) {
+        try {
+            return mapper.mapper().convertValue(imp.getExt(), FLOXIS_EXT_TYPE_REFERENCE).getBidder();
+        } catch (IllegalArgumentException e) {
+            throw new PreBidException("invalid imp.ext.bidder for imp %s: %s".formatted(imp.getId(), e.getMessage()));
+        }
+    }
+
+    // Bidding host: the supply partner's regional subdomain (floxis itself has no partner prefix).
+    private static String resolveBidHost(String region, String partner) {
+        final String resolvedRegion = isBlank(region) ? DEFAULT_REGION : region;
+        final String resolvedPartner = isBlank(partner) ? DEFAULT_PARTNER : partner;
+        if (!HOST_LABEL.matcher(resolvedRegion).matches() || !HOST_LABEL.matcher(resolvedPartner).matches()) {
+            throw new PreBidException(
+                    "invalid Floxis region or partner; both must be DNS labels: region=%s partner=%s"
+                            .formatted(resolvedRegion, resolvedPartner));
+        }
+        return resolvedPartner.equals(DEFAULT_PARTNER)
+                ? resolvedRegion + ".floxis.tech"
+                : resolvedPartner + "-" + resolvedRegion + ".floxis.tech";
+    }
+
+    private static boolean isBlank(String value) {
+        return value == null || value.isEmpty();
+    }
+
+    private static String resolveUrl(String endpoint, ExtImpFloxis extImp) {
+        return endpoint
+                .replace(HOST_MACRO, resolveBidHost(extImp.getRegion(), extImp.getPartner()))
+                .replace(SEAT_MACRO, HttpUtil.encodeUrl(extImp.getSeat()));
+    }
+
+    @Override
+    public Result<List<BidderBid>> makeBids(BidderCall<BidRequest> httpCall, BidRequest bidRequest) {
+        final BidResponse bidResponse;
+        try {
+            bidResponse = mapper.decodeValue(httpCall.getResponse().getBody(), BidResponse.class);
+        } catch (DecodeException e) {
+            return Result.withError(BidderError.badServerResponse(e.getMessage()));
+        }
+
+        if (bidResponse == null || CollectionUtils.isEmpty(bidResponse.getSeatbid())) {
+            return Result.empty();
+        }
+
+        final List<BidderError> errors = new ArrayList<>();
+        final List<BidderBid> bids = new ArrayList<>();
+        for (SeatBid seatBid : bidResponse.getSeatbid()) {
+            if (seatBid == null || CollectionUtils.isEmpty(seatBid.getBid())) {
+                continue;
+            }
+            for (Bid bid : seatBid.getBid()) {
+                try {
+                    bids.add(BidderBid.of(bid, getMediaTypeForBid(bidRequest.getImp(), bid), bidResponse.getCur()));
+                } catch (PreBidException e) {
+                    errors.add(BidderError.badServerResponse(e.getMessage()));
+                }
+            }
+        }
+
+        return Result.of(bids, errors);
+    }
+
+    // Resolves the bid's media type. When bid.mtype (OpenRTB 2.6) is set it is treated as
+    // authoritative. When unset, a single-format imp's media type is used; multi-format imps
+    // without mtype cannot be disambiguated and surface an error.
+    private static BidType getMediaTypeForBid(List<Imp> imps, Bid bid) {
+        final Integer mtype = bid.getMtype();
+        if (mtype != null && mtype != 0) {
+            return switch (mtype) {
+                case 1 -> BidType.banner;
+                case 2 -> BidType.video;
+                case 3 -> BidType.audio;
+                case 4 -> BidType.xNative;
+                default -> throw new PreBidException(
+                        "unsupported bid.mtype %d for impression %s".formatted(mtype, bid.getImpid()));
+            };
+        }
+
+        for (Imp imp : imps) {
+            if (!Objects.equals(imp.getId(), bid.getImpid())) {
+                continue;
+            }
+            int formats = 0;
+            BidType resolved = null;
+            if (imp.getBanner() != null) {
+                formats++;
+                resolved = BidType.banner;
+            }
+            if (imp.getVideo() != null) {
+                formats++;
+                resolved = BidType.video;
+            }
+            if (imp.getAudio() != null) {
+                formats++;
+                resolved = BidType.audio;
+            }
+            if (imp.getXNative() != null) {
+                formats++;
+                resolved = BidType.xNative;
+            }
+            if (formats == 1) {
+                return resolved;
+            } else if (formats > 1) {
+                throw new PreBidException(
+                        "bid for multi-format imp %s requires bid.mtype to disambiguate".formatted(bid.getImpid()));
+            } else {
+                throw new PreBidException(
+                        "unable to resolve media type for impression %s".formatted(bid.getImpid()));
+            }
+        }
+
+        throw new PreBidException("unable to find impression %s for bid".formatted(bid.getImpid()));
+    }
+}

src/main/java/org/prebid/server/proto/openrtb/ext/request/floxis/ExtImpFloxis.java

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+package org.prebid.server.proto.openrtb.ext.request.floxis;
+
+import com.fasterxml.jackson.annotation.JsonProperty;
+import lombok.Value;
+
+@Value(staticConstructor = "of")
+public class ExtImpFloxis {
+
+    String seat;
+
+    @JsonProperty("region")
+    String region;
+
+    @JsonProperty("partner")
+    String partner;
+}

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

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+package org.prebid.server.spring.config.bidder;
+
+import org.prebid.server.bidder.BidderDeps;
+import org.prebid.server.bidder.floxis.FloxisBidder;
+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/floxis.yaml",
+        factory = YamlPropertySourceFactory.class)
+public class FloxisConfiguration {
+
+    private static final String BIDDER_NAME = "floxis";
+
+    @Bean("floxisConfigurationProperties")
+    @ConfigurationProperties("adapters.floxis")
+    BidderConfigurationProperties configurationProperties() {
+        return new BidderConfigurationProperties();
+    }
+
+    @Bean
+    BidderDeps floxisBidderDeps(BidderConfigurationProperties floxisConfigurationProperties,
+                                @NotBlank @Value("${external-url}") String externalUrl,
+                                JacksonMapper mapper) {
+
+        return BidderDepsAssembler.forBidder(BIDDER_NAME)
+                .withConfig(floxisConfigurationProperties)
+                .usersyncerCreator(UsersyncerCreator.create(externalUrl))
+                .bidderCreator(config -> new FloxisBidder(config.getEndpoint(), mapper))
+                .assemble();
+    }
+
+}

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

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+adapters:
+  floxis:
+    endpoint: https://{{Host}}/pbs?seat={{SeatId}}
+    ortb-version: "2.6"
+    modifying-vast-xml-allowed: false
+    meta-info:
+      maintainer-email: prebid@floxis.tech
+      app-media-types:
+        - banner
+        - video
+        - native
+        - audio
+      site-media-types:
+        - banner
+        - video
+        - native
+        - audio
+      supported-vendors:
+      vendor-id: 1609
+    usersync:
+      cookie-family-name: floxis
+      redirect:
+        url: "https://px-us-e.floxis.tech/sync?gdpr={{gdpr}}&gdpr_consent={{gdpr_consent}}&gpp={{gpp}}&gpp_sid={{gpp_sid}}&us_privacy={{us_privacy}}&dest={{redirect_url}}"
+        support-cors: false
+        uid-macro: "${USER_ID}"

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

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+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Floxis Adapter Params",
+  "description": "A schema which validates params accepted by the Floxis adapter",
+  "type": "object",
+  "additionalProperties": false,
+  "properties": {
+    "seat": {
+      "type": "string",
+      "minLength": 1,
+      "description": "The Floxis seat ID this publisher buys through"
+    },
+    "region": {
+      "type": "string",
+      "pattern": "^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$",
+      "description": "The Floxis region (DNS label, interpolated into the bidding host); defaults to us-e when omitted"
+    },
+    "partner": {
+      "type": "string",
+      "pattern": "^[a-zA-Z0-9]([a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?$",
+      "description": "The white-label partner (DNS label, interpolated into the bidding host); defaults to floxis when omitted"
+    }
+  },
+  "required": ["seat"]
+}