Restructuring the git repo

.gitignore

@@ -4,3 +4,6 @@ build/
 *~
 .gradle/
 .idea/
+lombok.config
+Dockerfile
+run

README.md

@@ -1,31 +1,38 @@
 # marginalia.nu
 
-This is the source code for marginalia.nu, including the [search engine](https://search.marginalia.nu), 
-the [MEMEX/gemini server](https://memex.marginalia.nu), the and the [encyclopedia service](https://encyclopedia.marginalia.nu). 
+This is the source code for [Marginalia Search](https://search.marginalia.nu). 
 
 The aim of the project is to develop new and alternative discovery methods for the Internet. 
 It's an experimental workshop as much as it is a public service, the overarching goal is to
 elevate the more human, non-commercial sides of the Internet. A side-goal is to do this without
 requiring datacenters and expensive enterprise hardware, to run this operation on affordable hardware.
 
-The canonical git server for this project is [https://git.marginalia.nu](https://git.marginalia.nu).
-It is fine to mirror it on other hosts, but if you have issues or questions
-git.marginalia.nu is where you want to go.
+## Set up instructions
 
-## Important note about wmsa.local
+For local development, you're strongly encouraged to use docker or podman.
+From a fresh to running system, you'll need to do this:
 
-This project has a [sister repository called wmsa.local](https://git.marginalia.nu/marginalia/wmsa.local)
-that contains scripts and configuration files for running and developing the code. 
+```
+$ ./gradlew assemble
 
-Without it, development is very unpleasant. 
+$ ./gradlew docker
 
-While developing the code, you will want an environment variable WMSA_HOME pointing to 
-the directory in which wmsa.local is checked out, otherwise the code will not run and
-several tests will fail.
+$ vim run/settings.profile
+
+(follow instructions in file)
+
+$ run/setup.sh
+
+$ run/reconvert.sh
+
+$ docker-compose up
+```
+
+Wait a moment and check out [https://localhost:8080](https://localhost:8080).
 
 ## Documentation
 
-Documentation is a work in progress. See the [wiki](https://git.marginalia.nu/marginalia/marginalia.nu/wiki).
+Documentation is a work in progress.
 
 ## Contributing
 

api/assistant-api/build.gradle

@@ -0,0 +1,45 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "5.3.3.3"
+
+    id 'jvm-test-suite'
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+dependencies {
+    implementation project(':third-party')
+    implementation project(':protocol')
+    implementation project(':common:model')
+    implementation project(':common:config')
+    implementation project(':common:service-discovery')
+    implementation project(':common:service-client')
+
+    implementation libs.lombok
+    annotationProcessor libs.lombok
+    implementation libs.bundles.slf4j
+
+    implementation libs.prometheus
+    implementation libs.notnull
+    implementation libs.guice
+    implementation libs.rxjava
+    implementation libs.gson
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+
+}
+
+test {
+    useJUnitPlatform()
+}
+
+task fastTests(type: Test) {
+    useJUnitPlatform {
+        excludeTags "slow"
+    }
+}

api/assistant-api/src/main/java/nu/marginalia/assistant/client/AssistantClient.java

@@ -1,28 +1,32 @@
-package nu.marginalia.wmsa.edge.assistant.client;
+package nu.marginalia.assistant.client;
 
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
 import io.reactivex.rxjava3.core.Observable;
-import nu.marginalia.wmsa.client.AbstractDynamicClient;
-import nu.marginalia.wmsa.client.exception.RouteNotConfiguredException;
-import nu.marginalia.wmsa.configuration.ServiceDescriptor;
-import nu.marginalia.wmsa.configuration.server.Context;
-import nu.marginalia.wmsa.edge.assistant.dict.DictionaryResponse;
-import org.eclipse.jetty.util.UrlEncoded;
+import nu.marginalia.assistant.client.model.DictionaryResponse;
+import nu.marginalia.client.AbstractDynamicClient;
+import nu.marginalia.client.exception.RouteNotConfiguredException;
+import nu.marginalia.WmsaHome;
+import nu.marginalia.model.gson.GsonFactory;
+import nu.marginalia.service.descriptor.ServiceDescriptors;
+import nu.marginalia.service.id.ServiceId;
+import nu.marginalia.client.Context;
 
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 @Singleton
 public class AssistantClient extends AbstractDynamicClient {
 
     @Inject
-    public AssistantClient() {
-        super(ServiceDescriptor.EDGE_ASSISTANT);
+    public AssistantClient(ServiceDescriptors descriptors) {
+        super(descriptors.forId(ServiceId.Assistant), WmsaHome.getHostsFile(), GsonFactory::get);
     }
 
     public Observable<DictionaryResponse> dictionaryLookup(Context ctx, String word) {
         try {
-            return super.get(ctx, "/dictionary/" + UrlEncoded.encodeString(word), DictionaryResponse.class);
+            return super.get(ctx, "/dictionary/" + URLEncoder.encode(word, StandardCharsets.UTF_8), DictionaryResponse.class);
         }
         catch (RouteNotConfiguredException ex) {
             return Observable.empty();
@@ -32,7 +36,7 @@ public class AssistantClient extends AbstractDynamicClient {
     @SuppressWarnings("unchecked")
     public Observable<List<String>> spellCheck(Context ctx, String word) {
         try {
-            return (Observable<List<String>>) (Object) super.get(ctx, "/spell-check/" + UrlEncoded.encodeString(word), List.class);
+            return (Observable<List<String>>) (Object) super.get(ctx, "/spell-check/" +  URLEncoder.encode(word, StandardCharsets.UTF_8), List.class);
         }
         catch (RouteNotConfiguredException ex) {
             return Observable.empty();
@@ -49,7 +53,7 @@ public class AssistantClient extends AbstractDynamicClient {
 
     public Observable<String> evalMath(Context ctx, String expression) {
         try {
-            return super.get(ctx, "/eval-expression?value=" + UrlEncoded.encodeString(expression));
+            return super.get(ctx, "/eval-expression?value=" +  URLEncoder.encode(expression, StandardCharsets.UTF_8));
         }
         catch (RouteNotConfiguredException ex) {
             return Observable.empty();

api/assistant-api/src/main/java/nu/marginalia/assistant/client/model/DictionaryEntry.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.assistant.dict;
+package nu.marginalia.assistant.client.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

api/assistant-api/src/main/java/nu/marginalia/assistant/client/model/DictionaryResponse.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.assistant.dict;
+package nu.marginalia.assistant.client.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

api/index-api/build.gradle

@@ -0,0 +1,48 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "5.3.3.3"
+
+    id 'jvm-test-suite'
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
+dependencies {
+    implementation project(':third-party')
+    implementation project(':protocol')
+    implementation project(':common:model')
+    implementation project(':common:config')
+    implementation project(':common:service-discovery')
+    implementation project(':common:service-client')
+
+    implementation project(':index:index-query')
+
+    implementation libs.lombok
+    annotationProcessor libs.lombok
+    implementation libs.bundles.slf4j
+
+    implementation libs.prometheus
+    implementation libs.notnull
+    implementation libs.guice
+    implementation libs.rxjava
+    implementation libs.protobuf
+    implementation libs.gson
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+}
+
+test {
+    useJUnitPlatform()
+}
+
+task fastTests(type: Test) {
+    useJUnitPlatform {
+        excludeTags "slow"
+    }
+}

api/index-api/src/main/java/nu/marginalia/index/client/EdgeIndexClient.java

@@ -0,0 +1,45 @@
+package nu.marginalia.index.client;
+
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import io.prometheus.client.Summary;
+import io.reactivex.rxjava3.core.Observable;
+import nu.marginalia.WmsaHome;
+import nu.marginalia.client.AbstractDynamicClient;
+import nu.marginalia.client.Context;
+import nu.marginalia.index.client.model.query.EdgeSearchSpecification;
+import nu.marginalia.index.client.model.results.EdgeSearchResultItem;
+import nu.marginalia.index.client.model.results.EdgeSearchResultSet;
+import nu.marginalia.model.gson.GsonFactory;
+import nu.marginalia.service.descriptor.ServiceDescriptors;
+import nu.marginalia.service.id.ServiceId;
+
+import javax.annotation.CheckReturnValue;
+import java.util.List;
+
+@Singleton
+public class EdgeIndexClient extends AbstractDynamicClient {
+
+    private static final Summary wmsa_search_index_api_time = Summary.build().name("wmsa_search_index_api_time").help("-").register();
+
+    @Inject
+    public EdgeIndexClient(ServiceDescriptors descriptors) {
+        super(descriptors.forId(ServiceId.Index), WmsaHome.getHostsFile(), GsonFactory::get);
+
+        setTimeout(30);
+    }
+
+    @CheckReturnValue
+    public List<EdgeSearchResultItem> query(Context ctx, EdgeSearchSpecification specs) {
+        return wmsa_search_index_api_time.time(
+                () -> this.postGet(ctx, "/search/", specs, EdgeSearchResultSet.class).blockingFirst().getResults()
+        );
+    }
+
+
+    @CheckReturnValue
+    public Observable<Boolean> isBlocked(Context ctx) {
+        return super.get(ctx, "/is-blocked", Boolean.class);
+    }
+
+}

api/index-api/src/main/java/nu/marginalia/index/client/model/domain/EdgeDomainSearchResults.java

@@ -1,10 +1,10 @@
-package nu.marginalia.wmsa.edge.model.search.domain;
+package nu.marginalia.index.client.model.domain;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.ToString;
-import nu.marginalia.wmsa.edge.model.EdgeUrl;
-import nu.marginalia.wmsa.edge.model.id.EdgeIdList;
+import nu.marginalia.model.EdgeUrl;
+import nu.marginalia.model.id.EdgeIdList;
 
 @AllArgsConstructor @Getter @ToString
 public class EdgeDomainSearchResults {

api/index-api/src/main/java/nu/marginalia/index/client/model/domain/EdgeDomainSearchSpecification.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.search.domain;
+package nu.marginalia.index.client.model.domain;
 
 import lombok.AllArgsConstructor;
 import lombok.ToString;

api/index-api/src/main/java/nu/marginalia/index/client/model/query/EdgeSearchSpecification.java

@@ -1,10 +1,9 @@
-package nu.marginalia.wmsa.edge.model.search;
+package nu.marginalia.index.client.model.query;
 
 import lombok.*;
-import nu.marginalia.wmsa.edge.index.model.QueryLimits;
-import nu.marginalia.wmsa.edge.index.model.QueryStrategy;
-import nu.marginalia.wmsa.edge.index.svc.searchset.SearchSetIdentifier;
-import nu.marginalia.wmsa.edge.model.search.domain.SpecificationLimit;
+import nu.marginalia.index.query.limit.QueryLimits;
+import nu.marginalia.index.query.limit.QueryStrategy;
+import nu.marginalia.index.query.limit.SpecificationLimit;
 
 import java.util.List;
 

api/index-api/src/main/java/nu/marginalia/index/client/model/query/EdgeSearchSubquery.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.search;
+package nu.marginalia.index.client.model.query;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

api/index-api/src/main/java/nu/marginalia/index/client/model/query/SearchSetIdentifier.java

@@ -1,6 +1,4 @@
-package nu.marginalia.wmsa.edge.index.svc.searchset;
-
-import nu.marginalia.wmsa.edge.search.model.EdgeSearchProfile;
+package nu.marginalia.index.client.model.query;
 
 /** Identifies a RankingSearchSet, associated with an EdgeSearchProfile
  *

api/index-api/src/main/java/nu/marginalia/index/client/model/results/EdgeSearchResultItem.java

@@ -1,9 +1,9 @@
-package nu.marginalia.wmsa.edge.model.search;
+package nu.marginalia.index.client.model.results;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;
-import nu.marginalia.wmsa.edge.model.EdgeUrl;
-import nu.marginalia.wmsa.edge.model.id.EdgeId;
+import nu.marginalia.model.EdgeUrl;
+import nu.marginalia.model.id.EdgeId;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -41,7 +41,7 @@ public class EdgeSearchResultItem {
         return scoreValue;
     }
 
-    private transient int domainId = 0;
+    private transient int domainId = Integer.MIN_VALUE;
     public void setDomainId(int domainId) {
         this.domainId = domainId;
     }
@@ -69,12 +69,12 @@ public class EdgeSearchResultItem {
     }
 
     public long deduplicationKey() {
-        final int ranking = getDomainId();
+        final int domainId = getDomainId();
 
-        if (ranking == Integer.MAX_VALUE || ranking == Integer.MIN_VALUE) {
+        if (domainId == Integer.MAX_VALUE || domainId == Integer.MIN_VALUE) {
             return 0;
         }
 
-        return ranking;
+        return domainId;
     }
 }

api/index-api/src/main/java/nu/marginalia/index/client/model/results/EdgeSearchResultKeywordScore.java

@@ -1,9 +1,9 @@
-package nu.marginalia.wmsa.edge.model.search;
+package nu.marginalia.index.client.model.results;
 
-import nu.marginalia.wmsa.edge.index.model.EdgePageDocumentFlags;
-import nu.marginalia.wmsa.edge.index.model.EdgePageDocumentsMetadata;
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordFlags;
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordMetadata;
+import nu.marginalia.model.crawl.EdgePageWordFlags;
+import nu.marginalia.model.idx.EdgePageWordMetadata;
+import nu.marginalia.model.crawl.EdgePageDocumentFlags;
+import nu.marginalia.model.idx.EdgePageDocumentsMetadata;
 
 import static java.lang.Integer.lowestOneBit;
 import static java.lang.Integer.numberOfTrailingZeros;

api/index-api/src/main/java/nu/marginalia/index/client/model/results/EdgeSearchResultSet.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.search;
+package nu.marginalia.index.client.model.results;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

api/index-api/src/main/java/nu/marginalia/index/client/model/results/EdgeSearchResults.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.search;
+package nu.marginalia.index.client.model.results;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

api/readme.md

@@ -0,0 +1,7 @@
+# Core Service Clients
+
+These are clients for the [core services](../services-core/), along with what models
+are necessary for speaking to them. 
+
+All that is necessary is to `@Inject` them into the constructor and then 
+requests can be sent. 

api/search-api/build.gradle

@@ -0,0 +1,46 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "5.3.3.3"
+
+    id 'jvm-test-suite'
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
+dependencies {
+    implementation project(':third-party')
+    implementation project(':protocol')
+    implementation project(':common:model')
+    implementation project(':common:config')
+    implementation project(':common:service-discovery')
+    implementation project(':common:service-client')
+
+    implementation libs.lombok
+    annotationProcessor libs.lombok
+    implementation libs.bundles.slf4j
+
+    implementation libs.prometheus
+    implementation libs.notnull
+    implementation libs.guice
+    implementation libs.rxjava
+    implementation libs.gson
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+
+}
+
+test {
+    useJUnitPlatform()
+}
+
+task fastTests(type: Test) {
+    useJUnitPlatform {
+        excludeTags "slow"
+    }
+}

api/search-api/src/main/java/nu/marginalia/search/client/EdgeSearchClient.java

@@ -1,11 +1,15 @@
-package nu.marginalia.wmsa.edge.search.client;
+package nu.marginalia.search.client;
 
+import com.google.inject.Inject;
 import com.google.inject.Singleton;
 import io.reactivex.rxjava3.core.Observable;
-import nu.marginalia.wmsa.api.model.ApiSearchResults;
-import nu.marginalia.wmsa.client.AbstractDynamicClient;
-import nu.marginalia.wmsa.configuration.ServiceDescriptor;
-import nu.marginalia.wmsa.configuration.server.Context;
+import nu.marginalia.client.AbstractDynamicClient;
+import nu.marginalia.model.gson.GsonFactory;
+import nu.marginalia.search.client.model.ApiSearchResults;
+import nu.marginalia.service.descriptor.ServiceDescriptors;
+import nu.marginalia.service.id.ServiceId;
+import nu.marginalia.WmsaHome;
+import nu.marginalia.client.Context;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -17,8 +21,9 @@ import java.nio.charset.StandardCharsets;
 public class EdgeSearchClient extends AbstractDynamicClient {
     private final Logger logger = LoggerFactory.getLogger(getClass());
 
-    public EdgeSearchClient() {
-        super(ServiceDescriptor.EDGE_SEARCH);
+    @Inject
+    public EdgeSearchClient(ServiceDescriptors descriptors) {
+        super(descriptors.forId(ServiceId.Search), WmsaHome.getHostsFile(), GsonFactory::get);
     }
 
     @CheckReturnValue

api/search-api/src/main/java/nu/marginalia/search/client/model/ApiSearchResult.java

@@ -0,0 +1,18 @@
+package nu.marginalia.search.client.model;
+
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@AllArgsConstructor @Getter
+public class ApiSearchResult {
+    public String url;
+    public String title;
+    public String description;
+    public double quality;
+
+    public List<List<ApiSearchResultQueryDetails>> details = new ArrayList<>();
+
+}

api/search-api/src/main/java/nu/marginalia/search/client/model/ApiSearchResultQueryDetails.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.api.model;
+package nu.marginalia.search.client.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

api/search-api/src/main/java/nu/marginalia/search/client/model/ApiSearchResults.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.api.model;
+package nu.marginalia.search.client.model;
 
 import lombok.AllArgsConstructor;
 import lombok.Getter;

build.gradle

@@ -1,42 +1,16 @@
 plugins {
     id 'java'
-
-    id 'com.github.johnrengelman.shadow' version '6.0.0'
 }
 
-group 'nu.marginalia'
+group 'marginalia'
 version 'SNAPSHOT'
+
 compileJava.options.encoding = "UTF-8"
 compileTestJava.options.encoding = "UTF-8"
-repositories {
-    mavenLocal()
-    maven { url "https://artifactory.cronapp.io/public-release/" }
-    maven { url "https://repo1.maven.org/maven2/" }
-    maven { url "https://www2.ph.ed.ac.uk/maven2/" }
-    maven { url "https://jitpack.io/" }
-    exclusiveContent {
-        forRepository {
-            maven {
-                url = uri("https://jitpack.io")
-            }
-        }
-        filter {
-            // Only use JitPack for the `gson-record-type-adapter-factory` library
-            includeModule("com.github.Marcono1234", "gson-record-type-adapter-factory")
-        }
-    }
-}
 
-shadowJar {
-    zip64 true
-}
-jar {
-    manifest {
-        attributes 'Main-Class': "nu.marginalia.wmsa.configuration.ServiceDescriptor"
-    }
-    from {
-        configurations.shadow.collect { it.isDirectory() ? it : zipTree(it) }
-    }
+task dist(type: Copy) {
+    from subprojects.collect { it.tasks.withType(Tar) }
+    into "$buildDir/dist"
 }
 
 java {
@@ -44,19 +18,3 @@ java {
         languageVersion.set(JavaLanguageVersion.of(17))
     }
 }
-
-dependencies {
-    implementation project(':marginalia_nu')
-}
-task version() { //
-}
-
-test {
-    maxParallelForks = 16
-    forkEvery = 1
-    maxHeapSize = "8G"
-    useJUnitPlatform {
-        excludeTags "nobuild"
-    }
-}
-

common/config/build.gradle

@@ -0,0 +1,32 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "5.3.3.3"
+
+    id 'jvm-test-suite'
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
+dependencies {
+    implementation project(':common:service-discovery')
+    implementation project(':common:service-client')
+    implementation project(':libraries:misc')
+}
+
+test {
+    maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
+    maxHeapSize = "8G"
+    useJUnitPlatform()
+}
+
+task fastTests(type: Test) {
+    maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
+    maxHeapSize = "8G"
+    useJUnitPlatform {
+        excludeTags "slow"
+    }
+}

common/config/src/main/java/nu/marginalia/LanguageModels.java

@@ -0,0 +1,22 @@
+package nu.marginalia;
+
+import java.nio.file.Path;
+
+public class LanguageModels {
+    public final Path ngramBloomFilter;
+    public final Path termFrequencies;
+
+    public final Path openNLPSentenceDetectionData;
+    public final Path posRules;
+    public final Path posDict;
+    public final Path openNLPTokenData;
+
+    public LanguageModels(Path ngramBloomFilter, Path termFrequencies, Path openNLPSentenceDetectionData, Path posRules, Path posDict, Path openNLPTokenData) {
+        this.ngramBloomFilter = ngramBloomFilter;
+        this.termFrequencies = termFrequencies;
+        this.openNLPSentenceDetectionData = openNLPSentenceDetectionData;
+        this.posRules = posRules;
+        this.posDict = posDict;
+        this.openNLPTokenData = openNLPTokenData;
+    }
+}

common/config/src/main/java/nu/marginalia/UserAgent.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration;
+package nu.marginalia;
 
 public record UserAgent(String uaString) {
 

common/config/src/main/java/nu/marginalia/WebsiteUrl.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration;
+package nu.marginalia;
 
 public record WebsiteUrl(String url) {
     public String withPath(String path) {

common/config/src/main/java/nu/marginalia/WmsaHome.java

@@ -1,6 +1,7 @@
-package nu.marginalia.wmsa.configuration;
+package nu.marginalia;
 
-import nu.marginalia.util.language.conf.LanguageModels;
+
+import nu.marginalia.service.descriptor.HostsFile;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;

common/model/build.gradle

@@ -0,0 +1,53 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "5.3.3.3"
+    id 'jvm-test-suite'
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
+dependencies {
+    implementation project(':common:service-discovery')
+    implementation project(':common:service-client')
+    implementation project(':libraries:misc')
+
+    implementation libs.lombok
+    annotationProcessor libs.lombok
+    implementation libs.bundles.slf4j
+
+    implementation libs.guice
+    implementation libs.bundles.gson
+
+    implementation libs.notnull
+
+    implementation libs.commons.lang3
+
+    implementation libs.trove
+    implementation libs.fastutil
+
+    implementation libs.rxjava
+    implementation libs.bundles.mariadb
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+}
+
+test {
+    maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
+    maxHeapSize = "8G"
+    useJUnitPlatform()
+}
+
+task fastTests(type: Test) {
+    maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
+    maxHeapSize = "8G"
+    useJUnitPlatform {
+        excludeTags "slow"
+    }
+}
+

common/model/src/main/java/nu/marginalia/model/EdgeDomain.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model;
+package nu.marginalia.model;
 
 import lombok.*;
 
@@ -10,8 +10,6 @@ import java.util.regex.Pattern;
 @AllArgsConstructor
 @Getter @Setter @Builder
 public class EdgeDomain {
-
-
     @Nonnull
     public final String subDomain;
     @Nonnull
@@ -109,6 +107,7 @@ public class EdgeDomain {
         }
         return domain.substring(0, cutPoint).toLowerCase();
     }
+
     public String getLongDomainKey() {
         StringBuilder ret = new StringBuilder();
 

common/model/src/main/java/nu/marginalia/model/EdgeUrl.java

@@ -1,9 +1,9 @@
-package nu.marginalia.wmsa.edge.model;
+package nu.marginalia.model;
 
 import lombok.Builder;
 import lombok.Getter;
 import lombok.Setter;
-import nu.marginalia.wmsa.edge.converting.processor.logic.QueryParams;
+import nu.marginalia.util.QueryParams;
 
 import java.net.URI;
 import java.net.URISyntaxException;
@@ -12,7 +12,7 @@ import java.util.Optional;
 import java.util.regex.Pattern;
 
 @Getter @Setter @Builder
-public class EdgeUrl implements WideHashable {
+public class EdgeUrl {
     public final String proto;
     public final EdgeDomain domain;
     public final Integer port;
@@ -158,12 +158,6 @@ public class EdgeUrl implements WideHashable {
         return path.replaceAll(".*/", "");
     }
 
-    public long wideHash() {
-        long domainHash = domain.hashCode();
-        long thisHash = hashCode();
-        return (domainHash << 32) | thisHash;
-    }
-
     public int depth() {
         return (int) path.chars().filter(c -> c=='/').count();
     }

common/model/src/main/java/nu/marginalia/model/crawl/DocumentKeywords.java

@@ -1,7 +1,7 @@
-package nu.marginalia.wmsa.edge.converting.interpreter.instruction;
+package nu.marginalia.model.crawl;
 
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordMetadata;
-import nu.marginalia.wmsa.edge.model.crawl.EdgePageWords;
+
+import nu.marginalia.model.idx.EdgePageWordMetadata;
 
 import java.util.Arrays;
 

common/model/src/main/java/nu/marginalia/model/crawl/EdgeContentType.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model.crawl;
 
 
 import lombok.*;

common/model/src/main/java/nu/marginalia/model/crawl/EdgeDomainIndexingState.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model.crawl;
 
 public enum EdgeDomainIndexingState {
     ACTIVE("Active"),

common/model/src/main/java/nu/marginalia/model/crawl/EdgeDomainLink.java

@@ -1,7 +1,7 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model.crawl;
 
 import lombok.*;
-import nu.marginalia.wmsa.edge.model.EdgeDomain;
+import nu.marginalia.model.EdgeDomain;
 
 @AllArgsConstructor @EqualsAndHashCode @Getter @Setter @Builder @ToString
 public class EdgeDomainLink {

common/model/src/main/java/nu/marginalia/model/crawl/EdgeHtmlStandard.java

@@ -1,4 +1,5 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model.crawl;
+
 
 public enum EdgeHtmlStandard {
     PLAIN(0, 1, 1993),
@@ -8,9 +9,13 @@ public enum EdgeHtmlStandard {
     XHTML(-0.1, 1.05, 2006),
     HTML5(0.5, 1.1, 2018);
 
+    /** Used to tune quality score */
     public final double offset;
+    /** Used to tune quality score */
     public final double scale;
 
+    /** This parameter is used to bias publish date heuristics
+     * */
     public final int yearGuess;
 
     EdgeHtmlStandard(double offset, double scale, int yearGuess) {

common/model/src/main/java/nu/marginalia/model/crawl/EdgePageDocumentFlags.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.index.model;
+package nu.marginalia.model.crawl;
 
 import java.util.EnumSet;
 
@@ -6,7 +6,7 @@ public enum EdgePageDocumentFlags {
     /** Simple processing was done, this document should be de-prioritized as a search result */
     Simple,
 
-    UnusedBit1,
+    PlainText,
     UnusedBit2,
     UnusedBit3,
     UnusedBit4,

common/model/src/main/java/nu/marginalia/model/crawl/EdgePageWordFlags.java

@@ -1,9 +1,5 @@
-package nu.marginalia.wmsa.edge.index.model;
+package nu.marginalia.model.crawl;
 
-import nu.marginalia.util.language.processing.KeywordCounter;
-import nu.marginalia.util.language.processing.NameCounter;
-import nu.marginalia.util.language.processing.SubjectCounter;
-import nu.marginalia.wmsa.edge.converting.processor.SiteWords;
 
 import java.util.EnumSet;
 

common/model/src/main/java/nu/marginalia/model/crawl/EdgePageWords.java

@@ -1,10 +1,8 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model.crawl;
 
 import gnu.trove.list.array.TLongArrayList;
 import lombok.Getter;
 import lombok.ToString;
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordFlags;
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordMetadata;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -39,7 +37,7 @@ public class EdgePageWords {
         List<Long> emptyMeta = new ArrayList<>(entries.size());
 
         for (int i = 0; i < entries.size(); i++) {
-            emptyMeta.add(EdgePageWordMetadata.emptyValue());
+            emptyMeta.add(0L);
         }
 
         return new EdgePageWords(entries, emptyMeta);

common/model/src/main/java/nu/marginalia/model/crawl/EdgeUrlState.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model.crawl;
 
 /** This should correspond to EC_URL.STATE */
 public enum EdgeUrlState {

common/model/src/main/java/nu/marginalia/model/crawl/HtmlFeature.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.converting.processor.logic;
+package nu.marginalia.model.crawl;
 
 import java.util.Collection;
 

common/model/src/main/java/nu/marginalia/model/crawl/PubDate.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.converting.processor.logic.pubdate;
+package nu.marginalia.model.crawl;
 
 import java.time.LocalDate;
 import java.time.format.DateTimeFormatter;

common/model/src/main/java/nu/marginalia/model/dbcommon/DbDomainQueries.java

@@ -0,0 +1,64 @@
+package nu.marginalia.model.dbcommon;
+
+
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.util.concurrent.UncheckedExecutionException;
+import com.google.inject.Inject;
+import com.google.inject.Singleton;
+import com.zaxxer.hikari.HikariDataSource;
+import lombok.SneakyThrows;
+import nu.marginalia.model.EdgeDomain;
+import nu.marginalia.model.id.EdgeId;
+
+import java.util.NoSuchElementException;
+import java.util.Optional;
+
+@Singleton
+public class DbDomainQueries {
+    private final HikariDataSource dataSource;
+
+    private final Cache<EdgeDomain, EdgeId<EdgeDomain>> domainIdCache = CacheBuilder.newBuilder().maximumSize(10_000).build();
+
+    @Inject
+    public DbDomainQueries(HikariDataSource dataSource)
+    {
+        this.dataSource = dataSource;
+    }
+
+
+    @SneakyThrows
+    public EdgeId<EdgeDomain> getDomainId(EdgeDomain domain) {
+        try (var connection = dataSource.getConnection()) {
+
+            return domainIdCache.get(domain, () -> {
+                try (var stmt = connection.prepareStatement("SELECT ID FROM EC_DOMAIN WHERE DOMAIN_NAME=?")) {
+                    stmt.setString(1, domain.toString());
+                    var rsp = stmt.executeQuery();
+                    if (rsp.next()) {
+                        return new EdgeId<>(rsp.getInt(1));
+                    }
+                }
+                throw new NoSuchElementException();
+            });
+        }
+        catch (UncheckedExecutionException ex) {
+            throw ex.getCause();
+        }
+    }
+
+    @SneakyThrows
+    public Optional<EdgeDomain> getDomain(EdgeId<EdgeDomain> id) {
+        try (var connection = dataSource.getConnection()) {
+
+            try (var stmt = connection.prepareStatement("SELECT DOMAIN_NAME FROM EC_DOMAIN WHERE ID=?")) {
+                stmt.setInt(1, id.id());
+                var rsp = stmt.executeQuery();
+                if (rsp.next()) {
+                    return Optional.of(new EdgeDomain(rsp.getString(1)));
+                }
+                return Optional.empty();
+            }
+        }
+    }
+}

common/model/src/main/java/nu/marginalia/model/dbcommon/EdgeDomainBlacklist.java

@@ -1,9 +1,9 @@
-package nu.marginalia.wmsa.edge.dbcommon;
+package nu.marginalia.model.dbcommon;
 
 import com.google.inject.ImplementedBy;
 import gnu.trove.set.hash.TIntHashSet;
-import nu.marginalia.wmsa.edge.model.EdgeDomain;
-import nu.marginalia.wmsa.edge.model.id.EdgeId;
+import nu.marginalia.model.EdgeDomain;
+import nu.marginalia.model.id.EdgeId;
 
 @ImplementedBy(EdgeDomainBlacklistImpl.class)
 public interface EdgeDomainBlacklist {

common/model/src/main/java/nu/marginalia/model/dbcommon/EdgeDomainBlacklistImpl.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.dbcommon;
+package nu.marginalia.model.dbcommon;
 
 import com.google.inject.Inject;
 import com.google.inject.Singleton;
@@ -6,6 +6,7 @@ import com.zaxxer.hikari.HikariDataSource;
 import gnu.trove.set.hash.TIntHashSet;
 import io.reactivex.rxjava3.schedulers.Schedulers;
 import lombok.SneakyThrows;
+import nu.marginalia.model.EdgeDomain;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -67,5 +68,4 @@ public class EdgeDomainBlacklistImpl implements EdgeDomainBlacklist {
 
         return false;
     }
-
 }

common/model/src/main/java/nu/marginalia/model/gson/GsonFactory.java

@@ -1,11 +1,11 @@
-package nu.marginalia.wmsa.client;
+package nu.marginalia.model.gson;
 
 import com.google.gson.*;
 import marcono1234.gson.recordadapter.RecordTypeAdapterFactory;
-import nu.marginalia.util.bigstring.BigString;
-import nu.marginalia.wmsa.edge.model.EdgeDomain;
-import nu.marginalia.wmsa.edge.model.EdgeUrl;
-import nu.marginalia.wmsa.edge.model.id.EdgeId;
+import nu.marginalia.bigstring.BigString;
+import nu.marginalia.model.EdgeDomain;
+import nu.marginalia.model.EdgeUrl;
+import nu.marginalia.model.id.EdgeId;
 
 import java.net.URISyntaxException;
 

common/model/src/main/java/nu/marginalia/model/id/EdgeId.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.id;
+package nu.marginalia.model.id;
 
 
 /**

common/model/src/main/java/nu/marginalia/model/id/EdgeIdArray.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.id;
+package nu.marginalia.model.id;
 
 import java.util.Arrays;
 import java.util.stream.IntStream;

common/model/src/main/java/nu/marginalia/model/id/EdgeIdCollection.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.id;
+package nu.marginalia.model.id;
 
 import java.util.Arrays;
 import java.util.stream.IntStream;

common/model/src/main/java/nu/marginalia/model/id/EdgeIdCollectionMutable.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.id;
+package nu.marginalia.model.id;
 
 import gnu.trove.TIntCollection;
 

common/model/src/main/java/nu/marginalia/model/id/EdgeIdList.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.id;
+package nu.marginalia.model.id;
 
 import gnu.trove.TIntCollection;
 import gnu.trove.list.array.TIntArrayList;

common/model/src/main/java/nu/marginalia/model/id/EdgeIdSet.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.model.id;
+package nu.marginalia.model.id;
 
 import gnu.trove.TIntCollection;
 import gnu.trove.set.hash.TIntHashSet;

common/model/src/main/java/nu/marginalia/model/idx/EdgePageDocumentsMetadata.java

@@ -1,6 +1,7 @@
-package nu.marginalia.wmsa.edge.index.model;
+package nu.marginalia.model.idx;
 
-import nu.marginalia.wmsa.edge.converting.processor.logic.pubdate.PubDate;
+import nu.marginalia.model.crawl.EdgePageDocumentFlags;
+import nu.marginalia.model.crawl.PubDate;
 
 import java.util.EnumSet;
 import java.util.Set;
@@ -107,7 +108,6 @@ public record EdgePageDocumentsMetadata(int rank,
         return (int) ((encoded >>> TOPOLOGY_SHIFT) & TOPOLOGY_MASK);
     }
     public static int decodeYear(long encoded) {
-
         return PubDate.fromYearByte((int) ((encoded >>> YEAR_SHIFT) & YEAR_MASK));
     }
 

common/model/src/main/java/nu/marginalia/model/idx/EdgePageWordMetadata.java

@@ -1,5 +1,6 @@
-package nu.marginalia.wmsa.edge.index.model;
+package nu.marginalia.model.idx;
 
+import nu.marginalia.model.crawl.EdgePageWordFlags;
 import nu.marginalia.util.BrailleBlockPunchCards;
 
 import java.util.EnumSet;

common/model/src/main/java/nu/marginalia/util/KeywordListChunker.java

@@ -1,4 +1,6 @@
-package nu.marginalia.wmsa.edge.converting.interpreter.instruction;
+package nu.marginalia.util;
+
+import nu.marginalia.model.crawl.DocumentKeywords;
 
 import java.util.ArrayList;
 import java.util.Collections;

common/model/src/main/java/nu/marginalia/util/LineUtils.java

@@ -0,0 +1,47 @@
+package nu.marginalia.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class LineUtils {
+
+    /** LF, CR, CRLF, LFCR-agnostic string-line splitter that preserves empty lines
+     * that does not create a huge blob of a last item like String$split(regex, n)
+     *
+     */
+    public static List<String> firstNLines(String documentBody, int numLines) {
+        List<String> lines = new ArrayList<>(numLines);
+
+        boolean eatCr = false;
+        boolean eatLf = false;
+        int startPos = 0;
+
+        for (int pos = 0; pos < documentBody.length() && lines.size() < numLines; pos++) {
+            int cp = documentBody.charAt(pos);
+            if (cp == '\r') {
+                if (eatCr) {
+                    eatCr = false;
+                }
+                else {
+                    eatLf = true;
+                    lines.add(documentBody.substring(startPos, pos));
+                }
+                startPos = pos + 1;
+            } else if (cp == '\n') {
+                if (eatLf) {
+                    eatLf = false;
+                }
+                else {
+                    eatCr = true;
+                    lines.add(documentBody.substring(startPos, pos));
+                }
+                startPos = pos + 1;
+            } else {
+                eatCr = eatLf = false;
+            }
+        }
+
+        return lines;
+    }
+
+}

common/model/src/main/java/nu/marginalia/util/ParallelPipe.java

@@ -9,6 +9,12 @@ import java.util.List;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
 
+/** Generalization of the workflow <br>
+ * -- single provider thread reading sequentially from disk <br>
+ * -> multiple independent CPU-bound processing tasks <br>
+ * -> single consumer thread writing to network/disk <br>
+ * <p>
+ */
 public abstract class ParallelPipe<INPUT,INTERMEDIATE> {
     private final LinkedBlockingQueue<INPUT> inputs;
     private final LinkedBlockingQueue<INTERMEDIATE> intermediates;
@@ -61,8 +67,9 @@ public abstract class ParallelPipe<INPUT,INTERMEDIATE> {
             }
         }
 
-        logger.debug("Terminating {}", Thread.currentThread().getName());
+        logger.info("Terminating {}", Thread.currentThread().getName());
     }
+
     @SneakyThrows
     private void runReceiverThread() {
         while (expectingOutput || !inputs.isEmpty() || !intermediates.isEmpty()) {
@@ -80,12 +87,16 @@ public abstract class ParallelPipe<INPUT,INTERMEDIATE> {
         logger.info("Terminating {}", Thread.currentThread().getName());
     }
 
+    /** Begin processing an item */
     @SneakyThrows
     public void accept(INPUT input) {
         inputs.put(input);
     }
 
+    /** The meat of the processor thread runtime */
     protected abstract INTERMEDIATE onProcess(INPUT input) throws Exception;
+
+    /** The meat of the consumer thread runtime */
     protected abstract void onReceive(INTERMEDIATE intermediate) throws Exception;
 
     public void join() throws InterruptedException {

common/model/src/main/java/nu/marginalia/util/QueryParams.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.edge.converting.processor.logic;
+package nu.marginalia.util;
 
 import org.apache.commons.lang3.StringUtils;
 

common/model/src/main/resources/sql/edge-crawler-cache.sql

@@ -74,7 +74,7 @@ CREATE TABLE IF NOT EXISTS EC_PAGE_DATA (
     FORMAT ENUM('PLAIN', 'UNKNOWN', 'HTML123', 'HTML4', 'XHTML', 'HTML5', 'MARKDOWN') NOT NULL,
     FEATURES INT COMMENT "Bit-encoded feature set of document, @see HtmlFeature" NOT NULL,
 
-    DATA_HASH INTEGER NOT NULL,
+    DATA_HASH BIGINT NOT NULL,
     QUALITY DOUBLE NOT NULL,
 
     PUB_YEAR SMALLINT,
@@ -212,6 +212,13 @@ CREATE INDEX IF NOT EXISTS EC_DOMAIN_TOP_DOMAIN ON EC_DOMAIN (DOMAIN_TOP);
 
 ---;
 
+CREATE TABLE IF NOT EXISTS EC_RANDOM_DOMAINS (
+    DOMAIN_ID INT PRIMARY KEY,
+    DOMAIN_SET INT NOT NULL
+);
+
+---;
+
 DROP TABLE IF EXISTS REF_DICTIONARY;
 
 CREATE TABLE IF NOT EXISTS REF_DICTIONARY (
@@ -287,3 +294,4 @@ CREATE TABLE WMSA_PROCESS(
     MUTEX VARCHAR(255),
     TIMEOUT INT NOT NULL DEFAULT 60
 );
+

common/model/src/test/java/nu/marginalia/model/EdgeDomainTest.java

@@ -1,5 +1,6 @@
-package nu.marginalia.wmsa.edge.model;
+package nu.marginalia.model;
 
+import nu.marginalia.model.EdgeUrl;
 import org.junit.jupiter.api.Test;
 
 import java.net.URISyntaxException;

common/model/src/test/java/nu/marginalia/model/EdgePageWordMetadataTest.java

@@ -1,7 +1,7 @@
-package nu.marginalia.wmsa.edge.model.crawl;
+package nu.marginalia.model;
 
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordFlags;
-import nu.marginalia.wmsa.edge.index.model.EdgePageWordMetadata;
+import nu.marginalia.model.crawl.EdgePageWordFlags;
+import nu.marginalia.model.idx.EdgePageWordMetadata;
 import org.junit.jupiter.api.Test;
 
 import java.util.EnumSet;

common/model/src/test/java/nu/marginalia/model/EdgeUrlTest.java

@@ -1,5 +1,6 @@
-package nu.marginalia.wmsa.edge.model;
+package nu.marginalia.model;
 
+import nu.marginalia.model.EdgeUrl;
 import org.junit.jupiter.api.Test;
 
 import java.net.URISyntaxException;

common/model/src/test/java/nu/marginalia/util/DenseBitMapTest.java

@@ -1,5 +1,6 @@
 package nu.marginalia.util;
 
+import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.Test;
 
 import static org.junit.jupiter.api.Assertions.*;

common/model/src/test/java/nu/marginalia/util/LineUtilsTest.java

@@ -0,0 +1,16 @@
+package nu.marginalia.util;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.List;
+
+class LineUtilsTest {
+
+    @Test
+    void firstNLines() {
+        String text = "a\nb\r\ncd\r\re\n\rffgg\n\n";
+        List<String> expected = List.of("a", "b", "cd", "", "e", "ffgg", "");
+        Assertions.assertEquals(expected, LineUtils.firstNLines(text, 10));
+    }
+}

common/readme.md

@@ -0,0 +1,9 @@
+# Common
+
+These are packages containing the basic building blocks for running a service as well
+as shared models. 
+
+* [config](config/) contains some `@Inject`ables.
+* [service](service/) is the shared base classes for main methods and web services.
+* [service-client](service-client/) is the shared base class for RPC.
+* [service-discovery](service-discovery) contains tools that lets the services find each other.

common/service-client/build.gradle

@@ -0,0 +1,56 @@
+plugins {
+    id 'java'
+    id "io.freefair.lombok" version "5.3.3.3"
+    id "de.undercouch.download" version "5.1.0"
+    id 'jvm-test-suite'
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
+dependencies {
+    implementation project(':third-party')
+    implementation project(':protocol')
+    implementation project(':common:service-discovery')
+
+
+    implementation libs.lombok
+    annotationProcessor libs.lombok
+    implementation libs.bundles.slf4j
+
+    implementation libs.commons.lang3
+    implementation libs.spark
+    implementation libs.guice
+    implementation libs.rxjava
+
+    implementation libs.okhttp3
+    implementation libs.bundles.httpcomponents
+
+    implementation libs.bundles.gson
+    implementation libs.protobuf
+
+    implementation libs.bundles.prometheus
+
+    implementation libs.bundles.mariadb
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+}
+
+test {
+    maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
+    maxHeapSize = "8G"
+    useJUnitPlatform()
+}
+
+task fastTests(type: Test) {
+    maxParallelForks = Runtime.runtime.availableProcessors().intdiv(2) ?: 1
+    maxHeapSize = "8G"
+    useJUnitPlatform {
+        excludeTags "slow"
+    }
+}

common/service-client/src/main/java/nu/marginalia/client/AbortingScheduler.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client;
+package nu.marginalia.client;
 
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 import io.reactivex.rxjava3.core.Scheduler;
@@ -12,7 +12,7 @@ import java.util.concurrent.ExecutorService;
 import java.util.concurrent.Executors;
 import java.util.concurrent.ThreadFactory;
 
-public class AbortingScheduler implements AutoCloseable {
+public class AbortingScheduler {
     private final String name;
     private final ThreadFactory threadFactory;
 
@@ -54,7 +54,6 @@ public class AbortingScheduler implements AutoCloseable {
         return executorService;
     }
 
-    @Override
     public synchronized void close() {
         if (null != executorService) {
             executorService.shutdown();

common/service-client/src/main/java/nu/marginalia/client/AbstractClient.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client;
+package nu.marginalia.client;
 
 import com.google.gson.Gson;
 import com.google.protobuf.GeneratedMessageV3;
@@ -6,11 +6,10 @@ import io.reactivex.rxjava3.core.Observable;
 import io.reactivex.rxjava3.core.ObservableSource;
 import io.reactivex.rxjava3.plugins.RxJavaPlugins;
 import lombok.SneakyThrows;
-import nu.marginalia.wmsa.client.exception.LocalException;
-import nu.marginalia.wmsa.client.exception.NetworkException;
-import nu.marginalia.wmsa.client.exception.RemoteException;
-import nu.marginalia.wmsa.client.exception.RouteNotConfiguredException;
-import nu.marginalia.wmsa.configuration.server.Context;
+import nu.marginalia.client.exception.LocalException;
+import nu.marginalia.client.exception.NetworkException;
+import nu.marginalia.client.exception.RemoteException;
+import nu.marginalia.client.exception.RouteNotConfiguredException;
 import okhttp3.*;
 import org.apache.http.HttpHost;
 import org.apache.logging.log4j.ThreadContext;
@@ -24,32 +23,33 @@ import java.net.ConnectException;
 import java.util.Arrays;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
+import java.util.function.Supplier;
 import java.util.zip.GZIPOutputStream;
 
 public abstract class AbstractClient implements AutoCloseable {
-    public static final String CONTEXT_OUTBOUND_REQUEST = "outbound-request";
-
-    private final Gson gson = GsonFactory.get();
-
     private final Logger logger = LoggerFactory.getLogger(getClass());
 
+    public static final String CONTEXT_OUTBOUND_REQUEST = "outbound-request";
+    private final Gson gson;
     private final OkHttpClient client;
 
     private boolean quiet;
-    private String url;
+    private String serviceRoute;
+    private int timeout;
+
+
+    private volatile boolean alive;
+    private final Thread livenessMonitor;
 
     public void setTimeout(int timeout) {
         this.timeout = timeout;
     }
 
-    private int timeout;
-    private volatile boolean alive;
-
-    private final Thread livenessMonitor;
-
-    public AbstractClient(String host, int port, int timeout) {
+    public AbstractClient(String host, int port, int timeout, Supplier<Gson> gsonProvider) {
         logger.info("Creating client for {}[{}:{}]", getClass().getSimpleName(), host, port);
 
+        this.gson = gsonProvider.get();
+
         this.timeout = timeout;
         client = new OkHttpClient.Builder()
                 .connectTimeout(100, TimeUnit.MILLISECONDS)
@@ -57,7 +57,7 @@ public abstract class AbstractClient implements AutoCloseable {
                 .retryOnConnectionFailure(true)
                 .followRedirects(true)
                 .build();
-        url = new HttpHost(host, port).toURI();
+        serviceRoute = new HttpHost(host, port).toURI();
 
         RxJavaPlugins.setErrorHandler(e -> {
             if (e.getMessage() == null) {
@@ -76,13 +76,18 @@ public abstract class AbstractClient implements AutoCloseable {
 
     public void setServiceRoute(String hostname, int port) {
         scheduler().abort();
-        url = new HttpHost(hostname, port).toURI();
+        serviceRoute = new HttpHost(hostname, port).toURI();
+    }
+
+    protected String getServiceRoute() {
+        return serviceRoute;
     }
 
     @SneakyThrows
     private void monitorLiveness() {
         Thread.sleep(100); // Wait for initialization
-        for (;;) {
+        try {
+            for (; ; ) {
                 try {
                     alive = isResponsive();
                 }
@@ -100,6 +105,10 @@ public abstract class AbstractClient implements AutoCloseable {
                 }
             }
         }
+        catch (InterruptedException ex) {
+            // nothing to see here
+        }
+    }
 
     @Override
     public void close() {
@@ -117,11 +126,9 @@ public abstract class AbstractClient implements AutoCloseable {
 
     public synchronized boolean isResponsive() {
         Context ctx = Context.internal("ping");
-        var req = ctx.paint(new Request.Builder()).url(url + "/internal/ping").get().build();
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + "/internal/ping").get().build();
 
-        var call = client.newCall(req);
-
-        return Observable.just(call)
+        return Observable.just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(Call::execute)
                 .map(this::getResponseStatus)
@@ -135,11 +142,9 @@ public abstract class AbstractClient implements AutoCloseable {
     public synchronized boolean isAccepting() {
         Context ctx = Context.internal("ready");
 
-        var req = ctx.paint(new Request.Builder()).url(url + "/internal/ready").get().build();
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + "/internal/ready").get().build();
 
-        var call = client.newCall(req);
-
-        return Observable.just(call)
+        return Observable.just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(Call::execute)
                 .map(this::getResponseStatus)
@@ -156,19 +161,12 @@ public abstract class AbstractClient implements AutoCloseable {
 
         ensureAlive();
 
-        RequestBody body = RequestBody.create(
-                MediaType.parse("application/json; charset=utf-8"),
-                json(data));
+        RequestBody body = RequestBody.create(json(data), MediaType.parse("application/json; charset=utf-8"));
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).post(body).build();
-        var call = client.newCall(req);
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).post(body).build();
 
         return Observable
-                .just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
+                .just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(this::logInbound)
                 .map(Call::execute)
@@ -186,15 +184,13 @@ public abstract class AbstractClient implements AutoCloseable {
 
         ensureAlive();
 
-        RequestBody body = RequestBody.create(
-                MediaType.parse("application/protobuf"),
-                data.toByteArray());
+        RequestBody body = RequestBody.create(data.toByteArray(), MediaType.parse("application/protobuf"));
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).post(body).build();
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).post(body).build();
         var call = client.newCall(req);
 
         logInbound(call);
-        ThreadContext.put("outbound-request", url + endpoint);
+        ThreadContext.put("outbound-request", serviceRoute + endpoint);
         try (var rsp = call.execute()) {
             logOutbound(rsp);
             int code = rsp.code();
@@ -212,18 +208,10 @@ public abstract class AbstractClient implements AutoCloseable {
 
         ensureAlive();
 
-        RequestBody body = RequestBody.create(
-                MediaType.parse("application/json"),
-                json(data));
+        RequestBody body = RequestBody.create(json(data), MediaType.parse("application/json"));
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).post(body).build();
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).post(body).build();
-        var call = client.newCall(req);
-
-        return Observable.just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
+        return Observable.just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(this::logInbound)
                 .map(Call::execute)
@@ -238,15 +226,15 @@ public abstract class AbstractClient implements AutoCloseable {
     protected synchronized Observable<HttpStatusCode> post(Context ctx, String endpoint, String data, MediaType mediaType) {
         ensureAlive();
 
-        var body = RequestBody.create(mediaType, data);
+        var body = RequestBody.create(data, mediaType);
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).post(body).build();
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).post(body).build();
         var call = client.newCall(req);
 
 
         return Observable.just(call)
                 .map((c) -> {
-                    ThreadContext.put(CONTEXT_OUTBOUND_REQUEST, url + endpoint);
+                    ThreadContext.put(CONTEXT_OUTBOUND_REQUEST, serviceRoute + endpoint);
                     return c;
                 })
                 .subscribeOn(scheduler().get())
@@ -264,14 +252,9 @@ public abstract class AbstractClient implements AutoCloseable {
     protected synchronized <T> Observable<T> get(Context ctx, String endpoint, Class<T> type) {
         ensureAlive();
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).get().build();
-        var call = client.newCall(req);
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).get().build();
 
-        return Observable.just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
+        return Observable.just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(this::logInbound)
                 .map(Call::execute)
@@ -284,62 +267,12 @@ public abstract class AbstractClient implements AutoCloseable {
     }
 
     @SuppressWarnings("unchecked")
-    protected synchronized <T> Observable<List<T>> getList(Context ctx, String endpoint, Class<T> type) {
-        ensureAlive();
-
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).get().build();
-        var call = client.newCall(req);
-
-        return Observable.just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
-                .subscribeOn(scheduler().get())
-                .map(this::logInbound)
-                .map(Call::execute)
-                .map(this::logOutbound)
-                .map(rsp -> validateResponseStatus(rsp, req, 200))
-                .map(rsp -> Arrays.asList((T[])getEntity(rsp, type.arrayType())))
-                .retryWhen(this::retryHandler)
-                .timeout(timeout, TimeUnit.SECONDS)
-                .doFinally(() -> ThreadContext.remove("outbound-request"));
-    }
-
-
-    protected synchronized Observable<byte[]> getBinary(Context ctx, String endpoint) {
-        ensureAlive();
-
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).get().build();
-        var call = client.newCall(req);
-
-        return Observable.just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
-                .subscribeOn(scheduler().get())
-                .map(this::logInbound)
-                .map(Call::execute)
-                .map(this::logOutbound)
-                .map(rsp -> validateResponseStatus(rsp, req, 200))
-                .map(this::getBinaryEntity)
-                .retryWhen(this::retryHandler)
-                .timeout(timeout, TimeUnit.SECONDS)
-                .doFinally(() -> ThreadContext.remove("outbound-request"));
-    }
-
     protected synchronized Observable<String> get(Context ctx, String endpoint) {
         ensureAlive();
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).get().build();
-        var call = client.newCall(req);
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).get().build();
 
-        return Observable.just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
+        return Observable.just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(this::logInbound)
                 .map(Call::execute)
@@ -354,14 +287,9 @@ public abstract class AbstractClient implements AutoCloseable {
     protected synchronized Observable<HttpStatusCode> delete(Context ctx, String endpoint) {
         ensureAlive();
 
-        var req = ctx.paint(new Request.Builder()).url(url + endpoint).delete().build();
-        var call = client.newCall(req);
+        var req = ctx.paint(new Request.Builder()).url(serviceRoute + endpoint).delete().build();
 
-        return Observable.just(call)
-                .map((c) -> {
-                    ThreadContext.put("outbound-request", url + endpoint);
-                    return c;
-                })
+        return Observable.just(client.newCall(req))
                 .subscribeOn(scheduler().get())
                 .map(this::logInbound)
                 .map(Call::execute)
@@ -390,26 +318,12 @@ public abstract class AbstractClient implements AutoCloseable {
         if (!isAlive()) {
             wait(2000);
             if (!isAlive()) {
-                throw new RouteNotConfiguredException("Route not configured for " + name());
+                throw new RouteNotConfiguredException("Route not configured for " + name() + " -- tried " + serviceRoute);
             }
         }
     }
 
 
-    @SneakyThrows
-    public void waitReady() {
-        boolean accepting = isAccepting();
-        if (accepting) {
-            return;
-        }
-
-        logger.info("Waiting for " + name());
-        do {
-            Thread.sleep(1000);
-        } while (!isAccepting());
-    }
-
-
     private ObservableSource<?> retryHandler(Observable<Throwable> error) {
         return error.flatMap(this::filterRetryableExceptions);
     }
@@ -488,12 +402,6 @@ public abstract class AbstractClient implements AutoCloseable {
 
     }
 
-    @SneakyThrows
-    private byte[] getBinaryEntity(Response response) {
-        try (response) {
-            return response.body().bytes();
-        }
-    }
     public boolean isAlive() {
         return alive;
     }
@@ -507,17 +415,4 @@ public abstract class AbstractClient implements AutoCloseable {
         }
     }
 
-    private byte[] compressedJson(Object o) throws IOException {
-        ByteArrayOutputStream baos = new ByteArrayOutputStream();
-        GZIPOutputStream gos = new GZIPOutputStream(baos);
-        try {
-            gson.toJson(o, new OutputStreamWriter(gos));
-            gos.finish();
-            return baos.toByteArray();
-        }
-        catch (Exception ex) {
-            throw new LocalException(ex);
-        }
-    }
-
 }

common/service-client/src/main/java/nu/marginalia/client/AbstractDynamicClient.java

@@ -1,21 +1,23 @@
-package nu.marginalia.wmsa.client;
+package nu.marginalia.client;
 
+import com.google.gson.Gson;
 import io.reactivex.rxjava3.core.Observable;
 import lombok.SneakyThrows;
-import nu.marginalia.wmsa.configuration.ServiceDescriptor;
-import nu.marginalia.wmsa.configuration.server.Context;
+import nu.marginalia.service.descriptor.ServiceDescriptor;
+import nu.marginalia.service.descriptor.HostsFile;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import javax.annotation.Nonnull;
+import java.util.function.Supplier;
 
 public class AbstractDynamicClient extends AbstractClient {
     private final ServiceDescriptor service;
     private final Logger logger = LoggerFactory.getLogger(getClass());
     private final AbortingScheduler scheduler;
 
-    public AbstractDynamicClient(@Nonnull ServiceDescriptor service) {
-        super(service.getHost(), service.port, 10);
+    public AbstractDynamicClient(@Nonnull ServiceDescriptor service, HostsFile hosts, Supplier<Gson> gsonProvider) {
+        super(hosts.getHost(service), service.port, 10, gsonProvider);
 
         this.service = service;
         this.scheduler = new AbortingScheduler(name());
@@ -32,7 +34,7 @@ public class AbstractDynamicClient extends AbstractClient {
 
     @SneakyThrows
     public void blockingWait() {
-        logger.info("Waiting for route to {}", service);
+        logger.info("Waiting for route to {} ({})", service, getServiceRoute());
         while (!isAlive()) {
             Thread.sleep(1000);
         }
@@ -43,10 +45,4 @@ public class AbstractDynamicClient extends AbstractClient {
         return scheduler;
     }
 
-    public Observable<String> who(Context ctx) {
-        return get(ctx, "/public/who");
-    }
-    public Observable<String> ping(Context ctx) {
-        return get(ctx, "/internal/ping");
-    }
 }

common/service-client/src/main/java/nu/marginalia/client/Context.java

@@ -0,0 +1,89 @@
+package nu.marginalia.client;
+
+import io.reactivex.rxjava3.schedulers.Schedulers;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import spark.Request;
+
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+public class Context {
+    public static final String CONTEXT_HEADER = "X-Context";
+    public static final String SESSION_HEADER = "Cookie";
+    public static final String PUBLIC_HEADER = "X-Public";
+
+    private final String id;
+    private final String session;
+    private boolean treatAsPublic;
+
+    private Context(String id, String session) {
+        this.id = Objects.requireNonNull(id, "Context missing");
+        this.session = session;
+    }
+
+    public Context treatAsPublic() {
+        this.treatAsPublic = true;
+        return this;
+    }
+
+    public static Context internal() {
+        return new Context(UUID.randomUUID().toString(), null);
+    }
+    public static Context internal(String why) {
+        return new Context(why + ":" + System.nanoTime(), null);
+    }
+
+    public static Context fromRequest(Request request) {
+
+        if (Boolean.getBoolean("unit-test")) {
+            return Context.internal();
+        }
+
+        final var ctxHeader = anonymizeContext(request);
+        final var sessHeader = request.headers(SESSION_HEADER);
+
+        return new Context(ctxHeader, sessHeader);
+    }
+
+    private static String anonymizeContext(Request request) {
+        String header = request.headers(CONTEXT_HEADER);
+        if (header != null && header.contains("-")) {
+            // The public X-Context header contains info that traces to the
+            // external user's IP. Anonymize this by running it through a
+            // hash code blender with rotating salt
+
+            return ContextScrambler.anonymize(header);
+        }
+        else if (header != null) {
+            return header;
+        }
+        else {
+            // When no X-Context is provided, synthesize one from path
+            return request.pathInfo() + ":" + Thread.currentThread().getId();
+        }
+    }
+
+    public okhttp3.Request.Builder paint(okhttp3.Request.Builder requestBuilder) {
+        requestBuilder.addHeader(CONTEXT_HEADER, id);
+
+        if (session != null) {
+            requestBuilder.addHeader(SESSION_HEADER, session);
+        }
+
+        if (treatAsPublic) {
+            requestBuilder.header(PUBLIC_HEADER, "1");
+        }
+
+        return requestBuilder;
+    }
+
+    public String getContextId() {
+        return id;
+    }
+
+    public boolean isPublic() {
+        return id.startsWith("#");
+    }
+
+}

common/service-client/src/main/java/nu/marginalia/client/HttpStatusCode.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client;
+package nu.marginalia.client;
 
 public final class HttpStatusCode {
     public final int code;

common/service-client/src/main/java/nu/marginalia/client/exception/LocalException.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client.exception;
+package nu.marginalia.client.exception;
 
 public class LocalException extends MessagingException {
     public LocalException() {

common/service-client/src/main/java/nu/marginalia/client/exception/MessagingException.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client.exception;
+package nu.marginalia.client.exception;
 
 public class MessagingException extends RuntimeException {
     public MessagingException() {

common/service-client/src/main/java/nu/marginalia/client/exception/NetworkException.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client.exception;
+package nu.marginalia.client.exception;
 
 public class NetworkException extends MessagingException {
     public NetworkException() {

common/service-client/src/main/java/nu/marginalia/client/exception/RemoteException.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client.exception;
+package nu.marginalia.client.exception;
 
 public class RemoteException extends MessagingException {
     public RemoteException() {

common/service-client/src/main/java/nu/marginalia/client/exception/RouteNotConfiguredException.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client.exception;
+package nu.marginalia.client.exception;
 
 public class RouteNotConfiguredException extends MessagingException {
     public RouteNotConfiguredException() {

common/service-client/src/main/java/nu/marginalia/client/exception/TimeoutException.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.client.exception;
+package nu.marginalia.client.exception;
 
 public class TimeoutException extends MessagingException {
     public TimeoutException() {

common/service-client/src/test/java/nu/marginalia/client/AbstractClientTest.java

@@ -0,0 +1,180 @@
+package nu.marginalia.client;
+
+import com.google.gson.Gson;
+import io.reactivex.rxjava3.core.Observable;
+import lombok.AllArgsConstructor;
+import lombok.Data;
+import lombok.SneakyThrows;
+import org.junit.jupiter.api.*;
+import spark.Request;
+import spark.Response;
+import spark.Spark;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Random;
+
+import static org.junit.jupiter.api.Assertions.*;
+
+public class AbstractClientTest {
+
+    static TestServer testServer;
+    static AbstractClient client;
+    Gson gson = new Gson();
+
+    @Data @AllArgsConstructor
+    private static class DummyObject {
+        public int num;
+        public String str;
+    }
+
+    @BeforeAll
+    public static void setUp() {
+        int port = new Random().nextInt(6000, 10000);
+        testServer = new TestServer(port);
+
+        client = new AbstractClient("localhost", port, 1, Gson::new) {
+            @Override
+            public AbortingScheduler scheduler() {
+                return new AbortingScheduler(name());
+            }
+
+            @Override
+            public String name() {
+                return "test";
+            }
+        };
+        client.setTimeout(1);
+    }
+
+
+    @AfterAll
+    public static void tearDown() {
+        testServer.close();
+        client.close();
+    }
+
+    private void assertError(Observable<?> observable) {
+        try {
+            observable.blockingSubscribe();
+        }
+        catch (RuntimeException ex) {
+            System.out.println("Got exception " + ex.getClass().getSimpleName() + " -- as expected!" );
+            return;
+        }
+        Assertions.fail("Expected exception");
+    }
+    @SneakyThrows
+    private Object timeout(Request request, Response response) {
+        Thread.sleep(5000);
+        return "yawn";
+    }
+    @SneakyThrows
+    private Object error404(Request request, Response response) {
+        Spark.halt(404);
+        return "";
+    }
+
+    @Test
+    public void testGetTimeout() {
+        testServer.get(this::timeout);
+
+        assertError(client.get(Context.internal(), "/get"));
+    }
+
+    @Test
+    public void testPostTimeout() {
+        testServer.post(this::timeout);
+
+        assertError(client.post(Context.internal(), "/post", "test"));
+    }
+
+    @Test
+    public void testDeleteTimeout() {
+        testServer.delete(this::timeout);
+
+        assertError(client.delete(Context.internal(), "/post"));
+    }
+
+    @Test
+    public void testPost404() {
+        testServer.post(this::error404);
+
+        assertError(client.post(Context.internal(), "/post", "test"));
+    }
+    @Test
+    public void testGet404() {
+        testServer.get(this::error404);
+
+        assertError(client.get(Context.internal(), "/get"));
+    }
+    @Test
+    public void testDelete404() {
+        testServer.delete(this::error404);
+
+        assertError(client.delete(Context.internal(), "/delete"));
+    }
+
+    @Test
+    public void testGet() {
+        testServer.get((req, rsp) -> "Hello World");
+
+        assertEquals("Hello World", client.get(Context.internal(), "/get").blockingFirst());
+    }
+
+    @Test
+    public void testAcceptingUp() {
+        testServer.setReady(true);
+        assertTrue(client.isAccepting());
+    }
+
+    @Test
+    public void testAcceptingDown() {
+        testServer.setReady(false);
+        assertFalse(client.isAccepting());
+    }
+
+    @Test
+    public void testGetJson() {
+        testServer.get((req, rsp) -> new DummyObject(5, "23"), new Gson()::toJson);
+
+        assertEquals(client.get(Context.internal(), "/get", DummyObject.class).blockingFirst(),
+                new DummyObject(5, "23"));
+    }
+
+
+    @Test
+    public void testDelete() {
+        testServer.delete((req, rsp) -> "Hello World");
+
+        assertTrue(client.delete(Context.internal(), "/delete").blockingFirst().isGood());
+    }
+
+
+    @Test
+    public void testPost() {
+        List<DummyObject> inbox = new ArrayList<>();
+        testServer.post((req, rsp) -> {
+            inbox.add(gson.fromJson(req.body(), DummyObject.class));
+            return "ok";
+        });
+
+        client.post(Context.internal(), "/post", new DummyObject(5, "23")).blockingSubscribe();
+        assertEquals(1, inbox.size());
+        assertEquals(new DummyObject(5, "23"), inbox.get(0));
+    }
+
+    @Test
+    public void testPostGet() {
+        List<DummyObject> inbox = new ArrayList<>();
+        testServer.post((req, rsp) -> {
+            inbox.add(gson.fromJson(req.body(), DummyObject.class));
+            return new DummyObject(1, "ret");
+        }, gson::toJson);
+
+        var ret = client.postGet(Context.internal(), "/post", new DummyObject(5, "23"), DummyObject.class).blockingFirst();
+        assertEquals(1, inbox.size());
+        assertEquals(new DummyObject(5, "23"), inbox.get(0));
+        assertEquals(new DummyObject(1, "ret"), ret);
+    }
+}

common/service-client/src/test/java/nu/marginalia/client/TestServer.java

@@ -0,0 +1,59 @@
+package nu.marginalia.client;
+
+import spark.Request;
+import spark.Response;
+import spark.Spark;
+
+import java.util.function.BiFunction;
+import java.util.function.Function;
+
+public class TestServer {
+    BiFunction<Request, Response, Object> onGet;
+    BiFunction<Request, Response, Object> onPost;
+    BiFunction<Request, Response, Object> onDelete;
+
+
+    boolean isReady;
+
+    public TestServer(int port) {
+        Spark.port(port);
+        Spark.get("/internal/ping", (r,q) -> "pong");
+        Spark.get("/internal/ready", this::ready);
+        Spark.get("/get", (request, response) -> onGet.apply(request, response));
+        Spark.post("/post", (request, response) -> onPost.apply(request, response));
+        Spark.delete("/delete", (request, response) -> onDelete.apply(request, response));
+    }
+
+    private Object ready(Request request, Response response) {
+        if (isReady) {
+            return "";
+        }
+        else {
+            response.status(401);
+            return "bad";
+        }
+    }
+
+    public void close() {
+        Spark.stop();
+    }
+
+    public boolean isReady() {
+        return isReady;
+    }
+
+    public void setReady(boolean ready) {
+        isReady = ready;
+    }
+
+    public TestServer get(BiFunction<Request, Response, Object> onGet) { this.onGet = onGet; return this; }
+    public TestServer get(BiFunction<Request, Response, Object> onGet, Function<Object, Object> transform) {
+        this.onGet = onGet.andThen(transform);
+        return this;
+    }
+    public TestServer delete(BiFunction<Request, Response, Object> onDelete) { this.onDelete = onDelete; return this; }
+    public TestServer post(BiFunction<Request, Response, Object> onPost) { this.onPost = onPost; return this; }
+    public TestServer post(BiFunction<Request, Response, Object> onPost, Function<Object, Object> transform) {
+        this.onPost = onPost.andThen(transform); return this;
+    }
+}

common/service-discovery/build.gradle

@@ -0,0 +1,22 @@
+plugins {
+    id 'java'
+
+}
+
+repositories {
+    mavenLocal()
+    mavenCentral()
+}
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+dependencies {
+    implementation libs.bundles.slf4j
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+}

common/service-discovery/src/main/java/nu/marginalia/service/SearchServiceDescriptors.java

@@ -0,0 +1,17 @@
+package nu.marginalia.service;
+
+import nu.marginalia.service.descriptor.ServiceDescriptor;
+import nu.marginalia.service.descriptor.ServiceDescriptors;
+import nu.marginalia.service.id.ServiceId;
+
+import java.util.List;
+
+public class SearchServiceDescriptors {
+    public static ServiceDescriptors descriptors = new ServiceDescriptors(
+                  List.of(new ServiceDescriptor(ServiceId.Api, 5004),
+                          new ServiceDescriptor(ServiceId.Index, 5021),
+                          new ServiceDescriptor(ServiceId.Search, 5023),
+                          new ServiceDescriptor(ServiceId.Assistant, 5025),
+                          new ServiceDescriptor(ServiceId.Dating, 5070),
+                          new ServiceDescriptor(ServiceId.Explorer, 5071)));
+}

common/service-discovery/src/main/java/nu/marginalia/service/descriptor/HostsFile.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration;
+package nu.marginalia.service.descriptor;
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -13,7 +13,7 @@ import java.util.Map;
  *
  * */
 public class HostsFile {
-    private final Map<ServiceDescriptor, String> hostsMap = new HashMap<>(ServiceDescriptor.values().length);
+    private final Map<String, String> hostsMap = new HashMap<>();
     private static final Logger logger = LoggerFactory.getLogger(HostsFile.class);
     public HostsFile(Path fileName) throws IOException {
         var lines = Files.readAllLines(fileName);
@@ -27,7 +27,7 @@ public class HostsFile {
             String hostName = parts[1];
 
             try {
-                hostsMap.put(ServiceDescriptor.byName(descriptorName), hostName);
+                hostsMap.put(descriptorName, hostName);
             }
             catch (IllegalArgumentException ex) {
                 logger.warn("Hosts file contains entry for unknown service {}", descriptorName);
@@ -36,13 +36,10 @@ public class HostsFile {
     }
 
     public HostsFile() {
-        for (var sd : ServiceDescriptor.values()) {
-            hostsMap.put(sd, "localhost");
-        }
     }
 
     public String getHost(ServiceDescriptor sd) {
-        return hostsMap.get(sd);
+        return hostsMap.getOrDefault(sd.name, sd.name);
     }
 
 }

common/service-discovery/src/main/java/nu/marginalia/service/descriptor/ServiceDescriptor.java

@@ -0,0 +1,23 @@
+package nu.marginalia.service.descriptor;
+
+import nu.marginalia.service.id.ServiceId;
+
+public class ServiceDescriptor {
+    public final ServiceId id;
+    public final String name;
+    public final int port;
+
+    public ServiceDescriptor(ServiceId id, int port) {
+        this.id = id;
+        this.name = id.name;
+        this.port = port;
+    }
+
+    public String toString() {
+        return name;
+    }
+
+    public String describeService() {
+        return String.format("%s", name);
+    }
+}

common/service-discovery/src/main/java/nu/marginalia/service/descriptor/ServiceDescriptors.java

@@ -0,0 +1,31 @@
+package nu.marginalia.service.descriptor;
+
+import nu.marginalia.service.id.ServiceId;
+
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+public class ServiceDescriptors {
+    private final Map<ServiceId, ServiceDescriptor> descriptorsAll = new LinkedHashMap<>();
+
+    public ServiceDescriptors() {
+
+    }
+
+    public ServiceDescriptors(List<ServiceDescriptor> descriptors) {
+        descriptors.forEach(d -> descriptorsAll.put(d.id, d));
+    }
+
+    public ServiceDescriptor[] values() {
+        return descriptorsAll.values().toArray(ServiceDescriptor[]::new);
+    }
+
+    public ServiceDescriptor forId(ServiceId id) {
+        return Objects.requireNonNull(descriptorsAll.get(id),
+                "No service descriptor defined for " + id + " -- did you forget to "
+                + "bind(ServiceDescriptors.class).toInstance(SearchServiceDescriptors.descriptors); ?");
+    }
+
+}

common/service-discovery/src/main/java/nu/marginalia/service/id/ServiceId.java

@@ -0,0 +1,25 @@
+package nu.marginalia.service.id;
+
+public enum ServiceId {
+
+    Assistant("assistant-service"),
+    Api("api-service"),
+    Search("search-service"),
+    Index("index-service"),
+
+    Dating("dating-service"),
+    Explorer("explorer-service"),
+
+    Other_Auth("auth"),
+    Other_Memex("memex"),
+
+
+    Other_ResourceStore("resource-store"),
+    Other_Renderer("renderer"),
+    Other_PodcastScraper("podcast-scraper");
+
+    public final String name;
+    ServiceId(String name) {
+        this.name = name;
+    }
+}

common/service/build.gradle

@@ -0,0 +1,35 @@
+plugins {
+    id 'java'
+}
+
+
+java {
+    toolchain {
+        languageVersion.set(JavaLanguageVersion.of(17))
+    }
+}
+
+dependencies {
+    implementation project(':common:service-client')
+    implementation project(':common:service-discovery')
+    implementation project(':libraries:misc')
+
+    implementation libs.lombok
+    annotationProcessor libs.lombok
+
+    implementation libs.spark
+    implementation libs.guice
+    implementation libs.rxjava
+
+    implementation libs.bundles.prometheus
+    implementation libs.bundles.slf4j
+    implementation libs.bucket4j
+
+    testImplementation libs.bundles.slf4j.test
+    implementation libs.bundles.mariadb
+
+    testImplementation libs.bundles.slf4j.test
+    testImplementation libs.bundles.junit
+    testImplementation libs.mockito
+
+}

common/service/src/main/java/nu/marginalia/service/MainClass.java

@@ -0,0 +1,62 @@
+package nu.marginalia.service;
+
+import io.prometheus.client.hotspot.DefaultExports;
+import io.reactivex.rxjava3.exceptions.UndeliverableException;
+import io.reactivex.rxjava3.plugins.RxJavaPlugins;
+import nu.marginalia.service.id.ServiceId;
+import nu.marginalia.client.exception.NetworkException;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.net.SocketTimeoutException;
+import java.net.UnknownHostException;
+
+public abstract class MainClass {
+    private final Logger logger = LoggerFactory.getLogger(getClass());
+
+    public MainClass() {
+        RxJavaPlugins.setErrorHandler(this::handleError);
+    }
+
+    protected void handleError(Throwable ex) {
+        if (ex instanceof UndeliverableException) {
+            ex = ex.getCause();
+        }
+
+        if (ex instanceof SocketTimeoutException) {
+            logger.warn("SocketTimeoutException");
+        }
+        else if (ex instanceof UnknownHostException) {
+            logger.warn("UnknownHostException");
+        }
+        else if (ex instanceof NetworkException) {
+            logger.warn("NetworkException", ex);
+        }
+        else {
+            logger.error("Uncaught exception", ex);
+        }
+    }
+
+
+    protected static void init(ServiceId id, String... args) {
+
+        System.setProperty("log4j2.isThreadContextMapInheritable", "true");
+        System.setProperty("isThreadContextMapInheritable", "true");
+        System.setProperty("service-name", id.name);
+
+        initJdbc();
+        initPrometheus();
+    }
+
+    private static void initJdbc() {
+        // This looks weird, but it's just for running the static block
+        // in the driver class so that it registers itself
+
+        new org.mariadb.jdbc.Driver();
+    }
+
+    private static void initPrometheus() {
+        DefaultExports.initialize();
+    }
+
+}

common/service/src/main/java/nu/marginalia/service/module/ConfigurationModule.java

@@ -0,0 +1,35 @@
+package nu.marginalia.service.module;
+
+import com.google.inject.AbstractModule;
+import com.google.inject.Provides;
+import com.google.inject.name.Named;
+import com.google.inject.name.Names;
+import nu.marginalia.service.descriptor.ServiceDescriptors;
+import nu.marginalia.service.id.ServiceId;
+
+import java.util.Objects;
+
+public class ConfigurationModule extends AbstractModule {
+    private static final String SERVICE_NAME = System.getProperty("service-name");
+    private final ServiceDescriptors descriptors;
+    private final ServiceId id;
+
+    public ConfigurationModule(ServiceDescriptors descriptors, ServiceId id) {
+        this.descriptors = descriptors;
+        this.id = id;
+    }
+
+    public void configure() {
+        bind(ServiceDescriptors.class).toInstance(descriptors);
+        bind(String.class).annotatedWith(Names.named("service-name")).toInstance(Objects.requireNonNull(SERVICE_NAME));
+        bind(String.class).annotatedWith(Names.named("service-host")).toInstance(System.getProperty("service-host", "127.0.0.1"));
+        bind(Integer.class).annotatedWith(Names.named("service-port")).toInstance(descriptors.forId(id).port);
+    }
+
+    @Provides
+    @Named("metrics-server-port")
+    public Integer provideMetricsServerPort(@Named("service-port") Integer servicePort) {
+        return servicePort + 1000;
+    }
+
+}

common/service/src/main/java/nu/marginalia/service/module/DatabaseModule.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration.module;
+package nu.marginalia.service.module;
 
 import com.google.inject.AbstractModule;
 import com.google.inject.Provides;
@@ -6,17 +6,15 @@ import com.google.inject.Singleton;
 import com.zaxxer.hikari.HikariConfig;
 import com.zaxxer.hikari.HikariDataSource;
 import lombok.SneakyThrows;
-import nu.marginalia.wmsa.configuration.WmsaHome;
-import org.h2.tools.RunScript;
 import org.mariadb.jdbc.Driver;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 import java.io.FileInputStream;
 import java.io.IOException;
-import java.io.InputStreamReader;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.util.Optional;
 import java.util.Properties;
 
 public class DatabaseModule extends AbstractModule {
@@ -35,7 +33,7 @@ public class DatabaseModule extends AbstractModule {
     }
 
     private Properties loadDbProperties() {
-        Path propDir = WmsaHome.getHomePath().resolve("conf/db.properties");
+        Path propDir = getHomePath().resolve("conf/db.properties");
         if (!Files.isRegularFile(propDir)) {
             throw new IllegalStateException("Database properties file " + propDir + " does not exist");
         }
@@ -56,22 +54,27 @@ public class DatabaseModule extends AbstractModule {
 
     }
 
+    public static Path getHomePath() {
+        var retStr = Optional.ofNullable(System.getenv("WMSA_HOME")).orElse("/var/lib/wmsa");
+
+        var ret = Path.of(retStr);
+        if (!Files.isDirectory(ret)) {
+            throw new IllegalStateException("Could not find WMSA_HOME, either set environment variable or ensure /var/lib/wmsa exists");
+        }
+        return ret;
+    }
+
+
     @SneakyThrows
     @Singleton
     @Provides
     public HikariDataSource provideConnection() {
-        if (Boolean.getBoolean("data-store-h2")) {
-            return getH2();
-        }
-        else {
         return getMariaDB();
     }
 
-    }
-
     @SneakyThrows
     private HikariDataSource getMariaDB() {
-        var connStr = dbProperties.getProperty(DB_CONN_KEY);
+        var connStr = System.getProperty("db.overrideJdbc", dbProperties.getProperty(DB_CONN_KEY));
 
         try {
             HikariConfig config = new HikariConfig();
@@ -94,22 +97,4 @@ public class DatabaseModule extends AbstractModule {
         }
     }
 
-
-    @SneakyThrows
-    private HikariDataSource getH2() {
-        HikariConfig config = new HikariConfig();
-        config.setJdbcUrl("jdbc:h2:~/wmsa-db");
-        config.setUsername("wmsa");
-        config.setPassword("");
-
-        var ds = new HikariDataSource(config);
-
-        try (var stream = ClassLoader.getSystemResourceAsStream("sql/data-store-init.sql")) {
-            RunScript.execute(ds.getConnection(), new InputStreamReader(stream));
-        }
-        try (var stream = ClassLoader.getSystemResourceAsStream("sql/edge-crawler-cache.sql")) {
-            RunScript.execute(ds.getConnection(), new InputStreamReader(stream));
-        }
-        return ds;
-    }
 }

common/service/src/main/java/nu/marginalia/service/module/LoggerConfiguration.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration.module;
+package nu.marginalia.service.module;
 
 import com.google.inject.name.Named;
 

common/service/src/main/java/nu/marginalia/service/module/MetricsPortProvider.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration.module;
+package nu.marginalia.service.module;
 
 import com.google.inject.name.Named;
 

common/service/src/main/java/nu/marginalia/service/server/Initialization.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration.server;
+package nu.marginalia.service.server;
 
 import com.google.inject.Singleton;
 import lombok.SneakyThrows;
@@ -22,11 +22,6 @@ public class Initialization {
             initialized = true;
             notifyAll();
         }
-
-        if (Boolean.getBoolean("go-no-go")) {
-            logger.info("Self-test OK");
-            System.exit(0);
-        }
     }
 
     public boolean isReady() {
@@ -41,7 +36,7 @@ public class Initialization {
             while (!initialized) {
                 wait();
             }
-            return initialized;
+            return true;
         }
     }
 }

common/service/src/main/java/nu/marginalia/service/server/MetricsServer.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.configuration.server;
+package nu.marginalia.service.server;
 
 import com.google.inject.Inject;
 import com.google.inject.name.Named;

common/service/src/main/java/nu/marginalia/service/server/RateLimiter.java

@@ -1,10 +1,10 @@
-package nu.marginalia.wmsa.configuration.server;
+package nu.marginalia.service.server;
 
 import io.github.bucket4j.Bandwidth;
 import io.github.bucket4j.Bucket;
-import io.github.bucket4j.Bucket4j;
 import io.github.bucket4j.Refill;
 import io.reactivex.rxjava3.schedulers.Schedulers;
+import nu.marginalia.client.Context;
 
 import java.time.Duration;
 import java.util.Map;
@@ -49,13 +49,11 @@ public class RateLimiter {
     }
 
     public boolean isAllowed(Context ctx) {
-        final Optional<String> maybeIp = ctx.getIpHash();
-
-        if (maybeIp.isEmpty()) { // Internal server->server request
+        if (!ctx.isPublic()) { // Internal server->server request
             return true;
         }
 
-        return bucketMap.computeIfAbsent(maybeIp.get(),
+        return bucketMap.computeIfAbsent(ctx.getContextId(),
                 (ip) -> createBucket()).tryConsume(1);
     }
 

common/service/src/main/java/nu/marginalia/service/server/Service.java

@@ -1,10 +1,9 @@
-package nu.marginalia.wmsa.configuration.server;
+package nu.marginalia.service.server;
 
 import com.google.common.base.Strings;
 import io.prometheus.client.Counter;
-import nu.marginalia.wmsa.client.exception.MessagingException;
-import org.apache.http.HttpStatus;
-import org.apache.logging.log4j.ThreadContext;
+import nu.marginalia.client.Context;
+import nu.marginalia.client.exception.MessagingException;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.slf4j.Marker;
@@ -17,6 +16,8 @@ import java.util.Optional;
 
 public class Service {
     private final Logger logger = LoggerFactory.getLogger(getClass());
+
+    // Marker for filtering out sensitive content from the persistent logs
     private final Marker httpMarker = MarkerFactory.getMarker("HTTP");
 
     private final Initialization initialization;
@@ -53,8 +54,8 @@ public class Service {
 
             configureStaticFiles.run();
 
-            Spark.before(this::filterPublicRequests);
             Spark.before(this::auditRequestIn);
+            Spark.before(this::filterPublicRequests);
             Spark.after(this::auditRequestOut);
             Spark.exception(MessagingException.class, this::handleException);
 
@@ -86,14 +87,14 @@ public class Service {
 
         if (!request.pathInfo().startsWith("/public/")) {
             logger.warn(httpMarker, "External connection to internal API: {} -> {} {}", context, request.requestMethod(), request.pathInfo());
-            Spark.halt(HttpStatus.SC_FORBIDDEN);
+            Spark.halt(403);
         }
 
         String url = request.pathInfo();
         if (request.queryString() != null) {
             url = url + "?" + request.queryString();
         }
-        logger.info(httpMarker, "PUBLIC {}: {} {}", Context.fromRequest(request).getIpHash().orElse("?"), request.requestMethod(), url);
+        logger.info(httpMarker, "PUBLIC {}: {} {}", Context.fromRequest(request).getContextId(), request.requestMethod(), url);
     }
 
     private Object isInitialized(Request request, Response response) {
@@ -101,7 +102,7 @@ public class Service {
             return "ok";
         }
         else {
-            response.status(HttpStatus.SC_FAILED_DEPENDENCY);
+            response.status(424);
             return "bad";
         }
     }
@@ -115,21 +116,21 @@ public class Service {
             return "ok";
         }
         else {
-            response.status(HttpStatus.SC_FAILED_DEPENDENCY);
+            response.status(424);
             return "bad";
         }
     }
 
     private void auditRequestIn(Request request, Response response) {
-        request_counter.labels(serviceName).inc();
-
         // Paint context
-        if (!Strings.isNullOrEmpty(request.headers(Context.CONTEXT_HEADER))) {
-            Context.fromRequest(request);
-        }
+        paintThreadName(request, "req:");
+
+        request_counter.labels(serviceName).inc();
     }
+
     private void auditRequestOut(Request request, Response response) {
-        ThreadContext.clearMap();
+
+        paintThreadName(request, "rsp:");
 
         if (response.status() < 400) {
             request_counter_good.labels(serviceName).inc();
@@ -143,6 +144,11 @@ public class Service {
         }
     }
 
+    private void paintThreadName(Request request, String prefix) {
+        var ctx = Context.fromRequest(request);
+        Thread.currentThread().setName(prefix + ctx.getContextId());
+    }
+
     private void handleException(Exception ex, Request request, Response response) {
         request_counter_err.labels(serviceName).inc();
         if (ex instanceof MessagingException) {

common/service/src/main/java/nu/marginalia/service/server/StaticResources.java

@@ -1,4 +1,4 @@
-package nu.marginalia.wmsa.resource_store;
+package nu.marginalia.service.server;
 
 import lombok.SneakyThrows;
 import spark.Request;