feature/undertow #4
15 changed files with 632 additions and 641 deletions
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@ -1,7 +1,7 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<settings xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd"
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xmlns="http://maven.apache.org/SETTINGS/1.1.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<settings xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.1.0 http://maven.apache.org/xsd/settings-1.1.0.xsd"
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xmlns="http://maven.apache.org/SETTINGS/1.1.0">
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<servers>
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<server>
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<id>repo.gittr.ch</id>
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75
pom.xml
75
pom.xml
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@ -1,5 +1,6 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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@ -11,20 +12,43 @@
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<groupId>ch.fritteli.labyrinth</groupId>
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<artifactId>labyrinth-server</artifactId>
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<version>0.0.2-SNAPSHOT</version>
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<description>The Labyrinth server, offering a REST endpoint to access the Labyrinth Generator.</description>
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<url>https://manuel.friedli.info/labyrinth.html</url>
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<properties>
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<logback.version>1.4.6</logback.version>
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<lombok.version>1.18.26</lombok.version>
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<slf4j.version>2.0.5</slf4j.version>
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<java.source.version>17</java.source.version>
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<java.target.version>17</java.target.version>
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<jetbrains-annotations.version>24.0.1</jetbrains-annotations.version>
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<junit-jupiter.version>5.9.2</junit-jupiter.version>
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<labyrinth-generator.version>0.0.4</labyrinth-generator.version>
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<logback.version>1.4.6</logback.version>
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<lombok.version>1.18.26</lombok.version>
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<slf4j.version>2.0.7</slf4j.version>
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<undertow.version>2.3.5.Final</undertow.version>
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<vavr.version>0.10.4</vavr.version>
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</properties>
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<developers>
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<developer>
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<name>Manuel Friedli</name>
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<id>manuel</id>
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<url>https://www.fritteli.ch/</url>
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<email>manuel@fritteli.ch</email>
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<timezone>Europe/Zurich</timezone>
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<roles>
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<role>Project Lead</role>
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<role>Software Architect</role>
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<role>Software Engineer</role>
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<role>Operations Manager</role>
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</roles>
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</developer>
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</developers>
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<dependencies>
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<dependency>
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<groupId>ch.fritteli.labyrinth</groupId>
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<artifactId>labyrinth-generator</artifactId>
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<version>0.0.2</version>
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<version>${labyrinth-generator.version}</version>
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</dependency>
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<dependency>
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<groupId>io.vavr</groupId>
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@ -48,10 +72,14 @@
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<artifactId>logback-classic</artifactId>
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<version>${logback.version}</version>
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</dependency>
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<dependency>
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<groupId>io.undertow</groupId>
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<artifactId>undertow-core</artifactId>
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<version>${undertow.version}</version>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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<artifactId>junit-jupiter-api</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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@ -60,13 +88,22 @@
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-shade-plugin</artifactId>
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<version>3.2.4</version>
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<version>3.4.1</version>
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<configuration>
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<transformers>
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<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
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<transformer
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implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
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<mainClass>ch.fritteli.labyrinth.server.Main</mainClass>
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</transformer>
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</transformers>
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<filters>
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<filter>
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<artifact>ch.fritteli.labyrinth:labyrinth-generator</artifact>
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<excludes>
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<exclude>logback.xml</exclude>
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</excludes>
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</filter>
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</filters>
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</configuration>
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<executions>
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<execution>
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@ -77,13 +114,31 @@
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-source-plugin</artifactId>
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<executions>
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<execution>
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<id>attach-sources</id>
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<phase>verify</phase>
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<goals>
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<goal>jar-no-fork</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-site-plugin</artifactId>
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<version>4.0.0-M6</version>
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</plugin>
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</plugins>
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</build>
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<scm>
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<connection>scm:git:git://gittr.ch/java/labyrinth-server.git</connection>
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<connection>scm:git:https://gittr.ch/java/labyrinth-server.git</connection>
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<developerConnection>scm:git:ssh://git@gittr.ch/java/labyrinth-server.git</developerConnection>
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<url>https://gittr.ch/java/labyrinth-server</url>
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<tag>v0.0.1</tag>
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<tag>HEAD</tag>
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</scm>
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<distributionManagement>
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<repository>
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@ -1,323 +1,59 @@
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package ch.fritteli.labyrinth.server;
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import ch.fritteli.labyrinth.generator.model.Labyrinth;
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import ch.fritteli.labyrinth.generator.renderer.html.HTMLRenderer;
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import ch.fritteli.labyrinth.generator.renderer.pdf.PDFRenderer;
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import ch.fritteli.labyrinth.generator.renderer.text.TextRenderer;
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import ch.fritteli.labyrinth.generator.serialization.SerializerDeserializer;
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import com.sun.net.httpserver.Headers;
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import com.sun.net.httpserver.HttpExchange;
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import com.sun.net.httpserver.HttpServer;
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import io.vavr.collection.HashMap;
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import io.vavr.collection.HashSet;
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import io.vavr.collection.List;
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import io.vavr.collection.Map;
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import io.vavr.collection.Set;
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import io.vavr.collection.Stream;
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import io.vavr.control.Option;
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import ch.fritteli.labyrinth.server.handler.CreateHandler;
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import ch.fritteli.labyrinth.server.handler.RenderHandler;
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import io.undertow.Undertow;
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import io.undertow.server.RoutingHandler;
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import io.vavr.control.Try;
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import lombok.Getter;
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import java.net.InetSocketAddress;
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import lombok.NonNull;
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import lombok.extern.slf4j.Slf4j;
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import org.jetbrains.annotations.Nullable;
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import java.io.IOException;
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import java.io.OutputStream;
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import java.net.InetSocketAddress;
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import java.nio.charset.StandardCharsets;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.SynchronousQueue;
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import java.util.concurrent.ThreadPoolExecutor;
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import java.util.concurrent.TimeUnit;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.function.Function;
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@Slf4j
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public class LabyrinthServer {
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@NonNull
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private final HttpServer httpServer;
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@NonNull
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private final ExecutorService executorService = new ThreadPoolExecutor(0,
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1_000,
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5,
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TimeUnit.SECONDS,
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new SynchronousQueue<>()
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);
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public static Option<LabyrinthServer> createAndStartServer() {
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final Option<LabyrinthServer> serverOption = Try.of(ServerConfig::init)
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.mapTry(LabyrinthServer::new)
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.onFailure(cause -> log.error(
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"Failed to create LabyrinthServer.",
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cause
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))
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.toOption();
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serverOption.forEach(LabyrinthServer::start);
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return serverOption;
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@NonNull
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private final Undertow undertow;
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private LabyrinthServer(@NonNull final ServerConfig config) {
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final String hostAddress = config.getAddress().getHostAddress();
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final int port = config.getPort();
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log.info("Starting Server at http://{}:{}/", hostAddress, port);
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final RoutingHandler routingHandler = new RoutingHandler()
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.get(CreateHandler.PATH_TEMPLATE, new CreateHandler())
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.post(RenderHandler.PATH_TEMPLATE, new RenderHandler());
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this.undertow = Undertow.builder()
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.addHttpListener(port, hostAddress)
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.setHandler(routingHandler)
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.build();
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}
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public LabyrinthServer(@NonNull final ServerConfig config) throws IOException {
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this.httpServer = HttpServer.create(new InetSocketAddress(config.getAddress(), config.getPort()), 5);
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this.httpServer.createContext("/", new StaticResourcesFileHandler(this.executorService));
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this.httpServer.createContext("/create", this::handleCreate);
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this.httpServer.createContext("/render", this::handleRender);
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@NonNull
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public static Try<LabyrinthServer> createAndStartServer() {
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return Try.of(ServerConfig::init)
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.flatMapTry(LabyrinthServer::createAndStartServer);
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}
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public void start() {
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@NonNull
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public static Try<LabyrinthServer> createAndStartServer(@NonNull final ServerConfig config) {
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return Try.of(() -> new LabyrinthServer(config))
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.peek(LabyrinthServer::start);
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}
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private void start() {
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Runtime.getRuntime().addShutdownHook(new Thread(this::stop, "listener-stopper"));
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this.httpServer.start();
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log.info("Listening on http://{}:{}",
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this.httpServer.getAddress().getHostString(),
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this.httpServer.getAddress().getPort()
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);
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this.undertow.start();
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final InetSocketAddress address = (InetSocketAddress) this.undertow.getListenerInfo().get(0).getAddress();
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final String hostAddress = address.getAddress().getHostAddress();
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final int port = address.getPort();
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log.info("Listening on http://{}:{}", hostAddress, port);
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}
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private void handleCreate(HttpExchange exchange) {
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this.executorService.submit(() -> {
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log.debug("Handling request to {}", exchange.getRequestURI());
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try {
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final String requestMethod = exchange.getRequestMethod();
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if (!requestMethod.equals("GET")) {
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exchange.getResponseBody().close();
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exchange.sendResponseHeaders(405, -1);
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return;
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}
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final Map<RequestParameter, String> requestParams = this.parseQueryString(exchange.getRequestURI()
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.getQuery());
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final int width = this.getOrDefault(requestParams.get(RequestParameter.WIDTH), Integer::valueOf, 5);
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final int height = this.getOrDefault(requestParams.get(RequestParameter.HEIGHT), Integer::valueOf, 7);
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final Option<Long> idOption = requestParams.get(RequestParameter.ID)
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.toTry()
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.map(Long::valueOf)
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.toOption();
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final Option<OutputType> outputOption = requestParams.get(RequestParameter.OUTPUT)
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.flatMap(OutputType::ofString);
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final Headers responseHeaders = exchange.getResponseHeaders();
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final AtomicBoolean needsRedirect = new AtomicBoolean(false);
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final long id = idOption.onEmpty(() -> needsRedirect.set(true)).getOrElse(System::nanoTime);
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final OutputType output = outputOption.onEmpty(() -> needsRedirect.set(true))
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.getOrElse(OutputType.HTML);
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if (needsRedirect.get()) {
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responseHeaders.add("Location",
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"create?width=" + width + "&height=" + height + "&output=" + output.toString() +
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"&id=" + id
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);
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exchange.sendResponseHeaders(302, -1);
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return;
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}
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final byte[] render;
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try {
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final Labyrinth labyrinth = new Labyrinth(width, height, id);
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render = output.render(labyrinth);
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} catch (Exception e) {
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responseHeaders.add("Content-type", "text/plain; charset=UTF-8");
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exchange.sendResponseHeaders(500, 0);
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final OutputStream responseBody = exchange.getResponseBody();
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responseBody.write(("Error: " + e.getMessage()).getBytes(StandardCharsets.UTF_8));
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responseBody.flush();
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return;
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}
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responseHeaders.add("Content-type", output.getContentType());
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if (output.isAttachment()) {
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responseHeaders.add(
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"Content-disposition",
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String.format("attachment; filename=\"labyrinth-%dx%d-%d.%s\"",
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width,
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height,
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id,
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output.getFileExtension()
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)
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);
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}
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exchange.sendResponseHeaders(200, 0);
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final OutputStream responseBody = exchange.getResponseBody();
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responseBody.write(render);
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responseBody.flush();
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} catch (Exception e) {
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log.error("FSCK!", e);
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} finally {
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exchange.close();
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}
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});
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}
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private void handleRender(final HttpExchange exchange) {
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this.executorService.submit(() -> {
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try {
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log.debug("Handling request to {}", exchange.getRequestURI());
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final String requestMethod = exchange.getRequestMethod();
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if (!requestMethod.equals("POST")) {
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exchange.getResponseBody().close();
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exchange.sendResponseHeaders(405, -1);
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return;
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}
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final byte[] bytes = exchange.getRequestBody().readAllBytes();
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final Labyrinth labyrinth = SerializerDeserializer.deserialize(bytes);
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final OutputType output = exchange.getRequestHeaders()
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.get("Accept")
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.contains(OutputType.HTML.getContentType()) ?
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OutputType.HTML :
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OutputType.TEXT_PLAIN;
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final byte[] render;
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final Headers responseHeaders = exchange.getResponseHeaders();
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try {
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render = output.render(labyrinth);
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} catch (Exception e) {
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responseHeaders.add("Content-type", "text/plain; charset=UTF-8");
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exchange.sendResponseHeaders(500, 0);
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final OutputStream responseBody = exchange.getResponseBody();
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responseBody.write(("Error: " + e).getBytes(StandardCharsets.UTF_8));
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responseBody.flush();
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return;
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}
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responseHeaders.add("Content-type", output.getContentType());
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exchange.sendResponseHeaders(200, 0);
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final OutputStream responseBody = exchange.getResponseBody();
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responseBody.write(render);
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responseBody.flush();
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} catch (Exception e) {
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log.error("FSCK!", e);
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} finally {
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exchange.close();
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}
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});
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}
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public void stop() {
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private void stop() {
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log.info("Stopping server ...");
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this.httpServer.stop(5);
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this.executorService.shutdown();
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try {
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if (!this.executorService.awaitTermination(5, TimeUnit.SECONDS)) {
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log.warn("Timeout occurred while awaiting termination of executor service");
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}
|
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} catch (final InterruptedException e) {
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log.error("Failed to await termination of executor service", e);
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}
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this.undertow.stop();
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log.info("Server stopped.");
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}
|
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|
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@NonNull
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private Map<RequestParameter, String> parseQueryString(@Nullable final String query) {
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if (query == null) {
|
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return HashMap.empty();
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||||
}
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HashMap<RequestParameter, String> result = HashMap.empty();
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final String[] parts = query.split("&");
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for (final String part : parts) {
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final int split = part.indexOf('=');
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if (split == -1) {
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final Try<RequestParameter> tryKey = Try.of(() -> this.normalizeParameterName(part));
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if (tryKey.isSuccess()) {
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result = result.put(tryKey.get(), null);
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}
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} else {
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final String key = part.substring(0, split);
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final String value = part.substring(split + 1);
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final Try<RequestParameter> tryKey = Try.of(() -> this.normalizeParameterName(key));
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if (tryKey.isSuccess()) {
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result = result.put(tryKey.get(), value);
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}
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||||
}
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||||
}
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return result;
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}
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private <T> T getOrDefault(@NonNull final Option<String> input,
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@NonNull final Function<String, T> mapper,
|
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@Nullable final T defaultValue) {
|
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return input.toTry().map(mapper).getOrElse(defaultValue);
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}
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private RequestParameter normalizeParameterName(final String paramName) {
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return RequestParameter.parseName(paramName).get();
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}
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|
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private enum RequestParameter {
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WIDTH("w", "width"),
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HEIGHT("h", "height"),
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ID("i", "id"),
|
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OUTPUT("o", "output");
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private final Set<String> names;
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RequestParameter(@NonNull final String... names) {
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this.names = HashSet.of(names);
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||||
}
|
||||
|
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static Option<RequestParameter> parseName(@Nullable final String name) {
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if (name == null) {
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return Option.none();
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||||
}
|
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return Stream.of(values()).find(param -> param.names.exists(name::equalsIgnoreCase));
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||||
}
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}
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private enum OutputType {
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TEXT_PLAIN("text/plain; charset=UTF-8",
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labyrinth -> TextRenderer.newInstance().render(labyrinth).getBytes(StandardCharsets.UTF_8),
|
||||
"txt",
|
||||
false,
|
||||
"t",
|
||||
"text"
|
||||
),
|
||||
HTML("text/html",
|
||||
labyrinth -> HTMLRenderer.newInstance().render(labyrinth).getBytes(StandardCharsets.UTF_8),
|
||||
"html",
|
||||
false,
|
||||
"h",
|
||||
"html"
|
||||
),
|
||||
PDF("application/pdf", labyrinth -> PDFRenderer.newInstance().render(labyrinth), "pdf", false, "p", "pdf"),
|
||||
PDFFILE("application/pdf",
|
||||
labyrinth -> PDFRenderer.newInstance().render(labyrinth),
|
||||
"pdf",
|
||||
true,
|
||||
"f",
|
||||
"pdffile"
|
||||
),
|
||||
BINARY("application/octet-stream", SerializerDeserializer::serialize, "laby", true, "b", "binary");
|
||||
@Getter
|
||||
@NonNull
|
||||
private final String contentType;
|
||||
@NonNull
|
||||
private final List<String> names;
|
||||
@NonNull
|
||||
private final Function<Labyrinth, byte[]> render;
|
||||
@Getter
|
||||
private final boolean attachment;
|
||||
@Getter
|
||||
@NonNull
|
||||
private final String fileExtension;
|
||||
|
||||
OutputType(@NonNull final String contentType,
|
||||
@NonNull final Function<Labyrinth, byte[]> render,
|
||||
@NonNull final String fileExtension,
|
||||
final boolean attachment,
|
||||
@NonNull final String... names) {
|
||||
this.contentType = contentType;
|
||||
this.render = render;
|
||||
this.fileExtension = fileExtension;
|
||||
this.attachment = attachment;
|
||||
this.names = List.of(names);
|
||||
}
|
||||
|
||||
static Option<OutputType> ofString(@Nullable final String name) {
|
||||
if (name == null) {
|
||||
return Option.none();
|
||||
}
|
||||
final String nameLC = name.toLowerCase();
|
||||
return Stream.of(values()).find(param -> param.names.contains(nameLC));
|
||||
}
|
||||
|
||||
@Override
|
||||
public String toString() {
|
||||
return this.names.last();
|
||||
}
|
||||
|
||||
byte[] render(@NonNull final Labyrinth labyrinth) {
|
||||
return this.render.apply(labyrinth);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,11 +1,14 @@
|
|||
package ch.fritteli.labyrinth.server;
|
||||
|
||||
import lombok.experimental.UtilityClass;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
@Slf4j
|
||||
@UtilityClass
|
||||
public class Main {
|
||||
|
||||
public static void main(String[] args) {
|
||||
LabyrinthServer.createAndStartServer()
|
||||
.onEmpty(() -> log.error("Failed to create server. Stopping."));
|
||||
.onFailure(e -> log.error("Failed to create server. Stopping.", e));
|
||||
}
|
||||
}
|
||||
|
|
|
|||
94
src/main/java/ch/fritteli/labyrinth/server/OutputType.java
Normal file
94
src/main/java/ch/fritteli/labyrinth/server/OutputType.java
Normal file
|
|
@ -0,0 +1,94 @@
|
|||
package ch.fritteli.labyrinth.server;
|
||||
|
||||
import ch.fritteli.labyrinth.generator.model.Labyrinth;
|
||||
import ch.fritteli.labyrinth.generator.renderer.html.HTMLRenderer;
|
||||
import ch.fritteli.labyrinth.generator.renderer.pdf.PDFRenderer;
|
||||
import ch.fritteli.labyrinth.generator.renderer.text.TextRenderer;
|
||||
import ch.fritteli.labyrinth.generator.serialization.SerializerDeserializer;
|
||||
import io.vavr.collection.List;
|
||||
import io.vavr.collection.Stream;
|
||||
import io.vavr.control.Option;
|
||||
import lombok.Getter;
|
||||
import lombok.NonNull;
|
||||
import org.jetbrains.annotations.Nullable;
|
||||
|
||||
import java.nio.charset.StandardCharsets;
|
||||
import java.util.function.Function;
|
||||
|
||||
public enum OutputType {
|
||||
TEXT_PLAIN("text/plain; charset=UTF-8",
|
||||
"txt",
|
||||
labyrinth -> TextRenderer.newInstance().render(labyrinth).getBytes(StandardCharsets.UTF_8),
|
||||
false,
|
||||
"t",
|
||||
"text"),
|
||||
HTML("text/html",
|
||||
"html",
|
||||
labyrinth -> HTMLRenderer.newInstance().render(labyrinth).getBytes(StandardCharsets.UTF_8),
|
||||
false,
|
||||
"h",
|
||||
"html"),
|
||||
PDF("application/pdf",
|
||||
"pdf",
|
||||
labyrinth -> PDFRenderer.newInstance().render(labyrinth).toByteArray(),
|
||||
false,
|
||||
"p",
|
||||
"pdf"),
|
||||
PDFFILE("application/pdf",
|
||||
"pdf",
|
||||
labyrinth -> PDFRenderer.newInstance().render(labyrinth).toByteArray(),
|
||||
true,
|
||||
"f",
|
||||
"pdffile"),
|
||||
BINARY("application/octet-stream",
|
||||
"laby",
|
||||
SerializerDeserializer::serialize,
|
||||
true,
|
||||
"b",
|
||||
"binary");
|
||||
@Getter
|
||||
@NonNull
|
||||
private final String contentType;
|
||||
@Getter
|
||||
@NonNull
|
||||
private final String fileExtension;
|
||||
@NonNull
|
||||
private final Function<Labyrinth, byte[]> render;
|
||||
@Getter
|
||||
private final boolean attachment;
|
||||
@Getter
|
||||
@NonNull
|
||||
private final List<String> names;
|
||||
|
||||
OutputType(@NonNull final String contentType,
|
||||
@NonNull final String fileExtension,
|
||||
@NonNull final Function<Labyrinth, byte[]> render,
|
||||
final boolean attachment,
|
||||
@NonNull final String... names) {
|
||||
this.contentType = contentType;
|
||||
this.render = render;
|
||||
this.fileExtension = fileExtension;
|
||||
this.attachment = attachment;
|
||||
this.names = List.of(names);
|
||||
}
|
||||
|
||||
@NonNull
|
||||
public static Option<OutputType> ofString(@Nullable final String name) {
|
||||
return Option.of(name)
|
||||
.map(String::toLowerCase)
|
||||
.flatMap(nameLC -> Stream.of(values())
|
||||
.find(param -> param.names.contains(nameLC)));
|
||||
|
||||
}
|
||||
|
||||
@NonNull
|
||||
@Override
|
||||
public String toString() {
|
||||
return this.names.last();
|
||||
}
|
||||
|
||||
@NonNull
|
||||
public byte[] render(@NonNull final Labyrinth labyrinth) {
|
||||
return this.render.apply(labyrinth);
|
||||
}
|
||||
}
|
||||
|
|
@ -10,7 +10,6 @@ import org.jetbrains.annotations.Nullable;
|
|||
|
||||
import java.net.InetAddress;
|
||||
|
||||
|
||||
@AllArgsConstructor(access = AccessLevel.PRIVATE)
|
||||
@Slf4j
|
||||
@Value
|
||||
|
|
@ -39,7 +38,17 @@ public class ServerConfig {
|
|||
@NonNull
|
||||
private static InetAddress validateAddress(@Nullable final String address) {
|
||||
return Try.of(() -> InetAddress.getByName(address))
|
||||
.getOrElseThrow(cause -> new ConfigurationException("Invalid hostname/address: " + address, cause));
|
||||
.getOrElseThrow(cause -> new ConfigurationException(
|
||||
"Invalid hostname/address: %s".formatted(address),
|
||||
cause
|
||||
));
|
||||
}
|
||||
|
||||
private static int validatePort(final int port) {
|
||||
if (port < 0 || port > 0xFFFF) {
|
||||
throw new ConfigurationException("Port out of range (0..65535): %s".formatted(port));
|
||||
}
|
||||
return port;
|
||||
}
|
||||
|
||||
private static int validatePort(@Nullable final String portString) {
|
||||
|
|
@ -48,14 +57,9 @@ public class ServerConfig {
|
|||
return 0;
|
||||
}
|
||||
return Try.of(() -> Integer.valueOf(portString))
|
||||
.map(ServerConfig::validatePort)
|
||||
.getOrElseThrow(cause -> new ConfigurationException("Failed to parse port specified in system property '" + SYSPROP_PORT + "': " + portString, cause));
|
||||
}
|
||||
|
||||
private static int validatePort(final int port) {
|
||||
if (port < 0 || port > 0xFFFF) {
|
||||
throw new ConfigurationException("Port out of range (0..65535): " + port);
|
||||
}
|
||||
return port;
|
||||
.getOrElseThrow(cause -> new ConfigurationException(
|
||||
"Failed to parse port specified in system property '%s': %s".formatted(SYSPROP_PORT, portString),
|
||||
cause
|
||||
));
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,101 +0,0 @@
|
|||
package ch.fritteli.labyrinth.server;
|
||||
|
||||
import com.sun.net.httpserver.HttpExchange;
|
||||
import com.sun.net.httpserver.HttpHandler;
|
||||
import lombok.NonNull;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
import org.apache.pdfbox.io.IOUtils;
|
||||
import org.jetbrains.annotations.Nullable;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.io.InputStream;
|
||||
import java.net.URI;
|
||||
import java.nio.charset.StandardCharsets;
|
||||
import java.util.concurrent.ExecutorService;
|
||||
|
||||
@Slf4j
|
||||
public class StaticResourcesFileHandler implements HttpHandler {
|
||||
|
||||
public static final String WEBASSETS_DIRECTORY = "webassets";
|
||||
private final ExecutorService executorService;
|
||||
|
||||
public StaticResourcesFileHandler(final ExecutorService executorService) {
|
||||
this.executorService = executorService;
|
||||
log.debug("Created {}", this.getClass().getSimpleName());
|
||||
}
|
||||
|
||||
private static void redirect(@NonNull final HttpExchange exchange, @NonNull final String target) throws IOException {
|
||||
log.debug("Sending redirect to {}", target);
|
||||
exchange.getResponseHeaders().add("Location", target);
|
||||
exchange.sendResponseHeaders(302, -1);
|
||||
}
|
||||
|
||||
private static void notFound(@NonNull final HttpExchange exchange, @NonNull final String path) throws IOException {
|
||||
log.debug("Resource '{}' not found, replying with HTTP 404", path);
|
||||
exchange.getResponseHeaders().add("Content-type", "text/plain; charset=utf-8");
|
||||
exchange.sendResponseHeaders(404, 0);
|
||||
exchange.getResponseBody().write("404 - Not found".getBytes(StandardCharsets.UTF_8));
|
||||
exchange.getResponseBody().flush();
|
||||
}
|
||||
|
||||
@NonNull
|
||||
private static byte[] getBytes(@NonNull final String path) throws IOException {
|
||||
final InputStream stream = StaticResourcesFileHandler.class.getClassLoader().getResourceAsStream(WEBASSETS_DIRECTORY + path);
|
||||
if (stream == null) {
|
||||
log.debug("Resource '{}' not found in classpath.", path);
|
||||
return new byte[0];
|
||||
}
|
||||
final byte[] response = IOUtils.toByteArray(stream);
|
||||
log.debug("Sending reply; {} bytes", response.length);
|
||||
return response;
|
||||
}
|
||||
|
||||
@Nullable
|
||||
private static String getMimeType(@NonNull final String path) {
|
||||
if (path.endsWith(".html")) {
|
||||
return "text/html";
|
||||
}
|
||||
if (path.endsWith(".css")) {
|
||||
return "text/css";
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void handle(@NonNull final HttpExchange exchange) throws IOException {
|
||||
this.executorService.submit(() -> {
|
||||
try {
|
||||
final URI requestURI = exchange.getRequestURI();
|
||||
final String path = requestURI.getPath();
|
||||
log.debug("Handling request to {}", path);
|
||||
if ("/".equals(path)) {
|
||||
redirect(exchange, "index.html");
|
||||
return;
|
||||
}
|
||||
if (!path.startsWith("/")) {
|
||||
notFound(exchange, path);
|
||||
return;
|
||||
}
|
||||
final String mimeType = getMimeType(path);
|
||||
if (mimeType == null) {
|
||||
notFound(exchange, path);
|
||||
return;
|
||||
}
|
||||
final byte[] responseBytes = getBytes(path);
|
||||
if (responseBytes.length == 0) {
|
||||
notFound(exchange, path);
|
||||
return;
|
||||
}
|
||||
log.debug("Serving {}{} with mimetype {}: {} bytes", WEBASSETS_DIRECTORY, path, mimeType, responseBytes.length);
|
||||
exchange.getResponseHeaders().add("Content-type", mimeType);
|
||||
exchange.sendResponseHeaders(200, 0);
|
||||
exchange.getResponseBody().write(responseBytes);
|
||||
exchange.getResponseBody().flush();
|
||||
} catch (Exception e) {
|
||||
log.error("FSCK!", e);
|
||||
} finally {
|
||||
exchange.close();
|
||||
}
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,39 @@
|
|||
package ch.fritteli.labyrinth.server.handler;
|
||||
|
||||
import io.undertow.server.HttpHandler;
|
||||
import io.undertow.server.HttpServerExchange;
|
||||
import io.undertow.util.StatusCodes;
|
||||
import lombok.NonNull;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
import org.slf4j.MDC;
|
||||
|
||||
import java.time.Instant;
|
||||
import java.time.temporal.ChronoUnit;
|
||||
import java.util.UUID;
|
||||
|
||||
@Slf4j
|
||||
public abstract class AbstractHttpHandler implements HttpHandler {
|
||||
@Override
|
||||
public final void handleRequest(@NonNull final HttpServerExchange exchange) {
|
||||
final Instant start = Instant.now();
|
||||
try (final MDC.MDCCloseable closeable = MDC.putCloseable("correlationId", UUID.randomUUID().toString())) {
|
||||
|
||||
if (exchange.isInIoThread()) {
|
||||
log.debug("Dispatching request");
|
||||
exchange.dispatch(this);
|
||||
return;
|
||||
}
|
||||
try {
|
||||
this.handle(exchange);
|
||||
} catch (@NonNull final Exception e) {
|
||||
log.error("Error handling request", e);
|
||||
exchange.setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR)
|
||||
.getResponseSender()
|
||||
.send(StatusCodes.INTERNAL_SERVER_ERROR_STRING);
|
||||
}
|
||||
log.debug("Completed request in {}ms.", start.until(Instant.now(), ChronoUnit.MILLIS));
|
||||
}
|
||||
}
|
||||
|
||||
protected abstract void handle(@NonNull final HttpServerExchange exchange) throws Exception;
|
||||
}
|
||||
|
|
@ -0,0 +1,76 @@
|
|||
package ch.fritteli.labyrinth.server.handler;
|
||||
|
||||
import ch.fritteli.labyrinth.generator.model.Labyrinth;
|
||||
import ch.fritteli.labyrinth.server.OutputType;
|
||||
import io.undertow.server.HttpServerExchange;
|
||||
import io.undertow.util.Headers;
|
||||
import io.undertow.util.HttpString;
|
||||
import io.undertow.util.StatusCodes;
|
||||
import io.vavr.Tuple2;
|
||||
import io.vavr.control.Try;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.time.Instant;
|
||||
import java.time.temporal.ChronoUnit;
|
||||
import java.util.Deque;
|
||||
import java.util.Map;
|
||||
import lombok.NonNull;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
import org.slf4j.MDC;
|
||||
|
||||
@Slf4j
|
||||
public class CreateHandler extends AbstractHttpHandler {
|
||||
|
||||
public static final String PATH_TEMPLATE = "/create/{output}";
|
||||
|
||||
@Override
|
||||
protected void handle(@NonNull final HttpServerExchange exchange) {
|
||||
final Instant start = Instant.now();
|
||||
log.debug("Handling create request");
|
||||
this.createLabyrinthFromRequestParameters(exchange.getQueryParameters())
|
||||
.onFailure(e -> {
|
||||
log.error("Error creating Labyrinth from request", e);
|
||||
exchange.setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR)
|
||||
.setReasonPhrase(StatusCodes.INTERNAL_SERVER_ERROR_STRING)
|
||||
.getResponseSender()
|
||||
.send(e.getMessage());
|
||||
})
|
||||
.forEach(tuple -> {
|
||||
final OutputType outputType = tuple._1();
|
||||
final Labyrinth labyrinth = tuple._2();
|
||||
final byte[] bytes;
|
||||
try {
|
||||
bytes = outputType.render(labyrinth);
|
||||
} catch (@NonNull final Exception e) {
|
||||
log.error("Error rendering Labyrinth", e);
|
||||
exchange.setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR)
|
||||
.setReasonPhrase(StatusCodes.INTERNAL_SERVER_ERROR_STRING)
|
||||
.getResponseSender()
|
||||
.send("Error creating the Labyrinth. Please contact the administrator. Request id=%s".formatted(MDC.get("correlationId")));
|
||||
return;
|
||||
}
|
||||
final long durationMillis = start.until(Instant.now(), ChronoUnit.MILLIS);
|
||||
exchange.getResponseHeaders()
|
||||
.put(Headers.CONTENT_TYPE, outputType.getContentType())
|
||||
.put(HttpString.tryFromString("X-Labyrinth-ID"), String.valueOf(labyrinth.getRandomSeed()))
|
||||
.put(HttpString.tryFromString("X-Labyrinth-Width"), String.valueOf(labyrinth.getWidth()))
|
||||
.put(HttpString.tryFromString("X-Labyrinth-Height"), String.valueOf(labyrinth.getHeight()))
|
||||
.put(HttpString.tryFromString("X-Labyrinth-Generation-Duration-millis"), String.valueOf(durationMillis));
|
||||
if (outputType.isAttachment()) {
|
||||
exchange.getResponseHeaders()
|
||||
.put(Headers.CONTENT_DISPOSITION, "attachment; filename=\"labyrinth-%dx%d-%d.%s\"".formatted(
|
||||
labyrinth.getWidth(),
|
||||
labyrinth.getHeight(),
|
||||
labyrinth.getRandomSeed(),
|
||||
outputType.getFileExtension()
|
||||
));
|
||||
}
|
||||
exchange.getResponseSender().send(ByteBuffer.wrap(bytes));
|
||||
log.debug("Create request handled in {}ms.", durationMillis);
|
||||
});
|
||||
}
|
||||
|
||||
@NonNull
|
||||
private Try<Tuple2<OutputType, Labyrinth>> createLabyrinthFromRequestParameters(final Map<String, Deque<String>> queryParameters) {
|
||||
return new ParametersToLabyrinthExtractor(queryParameters).createLabyrinth();
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
package ch.fritteli.labyrinth.server.handler;
|
||||
|
||||
import ch.fritteli.labyrinth.generator.model.Labyrinth;
|
||||
import ch.fritteli.labyrinth.server.OutputType;
|
||||
import io.vavr.Tuple;
|
||||
import io.vavr.Tuple2;
|
||||
import io.vavr.collection.Stream;
|
||||
import io.vavr.control.Option;
|
||||
import io.vavr.control.Try;
|
||||
import java.util.Deque;
|
||||
import java.util.Map;
|
||||
import java.util.Random;
|
||||
import lombok.NonNull;
|
||||
import lombok.RequiredArgsConstructor;
|
||||
|
||||
@RequiredArgsConstructor
|
||||
class ParametersToLabyrinthExtractor {
|
||||
|
||||
@NonNull
|
||||
private final Map<String, Deque<String>> queryParameters;
|
||||
|
||||
@NonNull
|
||||
Try<Tuple2<OutputType, Labyrinth>> createLabyrinth() {
|
||||
final Option<OutputType> output = getParameterValue(RequestParameter.OUTPUT);
|
||||
final Option<Integer> width = getParameterValue(RequestParameter.WIDTH);
|
||||
final Option<Integer> height = getParameterValue(RequestParameter.HEIGHT);
|
||||
final Option<Long> id = getParameterValue(RequestParameter.ID);
|
||||
|
||||
if (output.isEmpty()) {
|
||||
return Try.failure(new IllegalArgumentException("Path parameter %s is required and must be one of: %s".formatted(
|
||||
RequestParameter.OUTPUT.getNames().mkString("'", " / ", "'"),
|
||||
Stream.of(OutputType.values())
|
||||
.flatMap(OutputType::getNames)
|
||||
.mkString(", ")
|
||||
)));
|
||||
}
|
||||
if (width.isEmpty()) {
|
||||
return Try.failure(new IllegalArgumentException("Query parameter %s is required and must be a positive integer value".formatted(
|
||||
RequestParameter.WIDTH.getNames().mkString("'", " / ", "'")
|
||||
)));
|
||||
}
|
||||
if (height.isEmpty()) {
|
||||
return Try.failure(new IllegalArgumentException("Query parameter %s is required and must be a positive integer value".formatted(
|
||||
RequestParameter.HEIGHT.getNames().mkString("'", " / ", "'")
|
||||
)));
|
||||
}
|
||||
|
||||
return Try.of(() -> Tuple.of(output.get(), new Labyrinth(width.get(), height.get(), id.getOrElse(() -> new Random().nextLong()))));
|
||||
}
|
||||
|
||||
@NonNull
|
||||
private <T> Option<T> getParameterValue(@NonNull final RequestParameter parameter) {
|
||||
return parameter.getParameterValue(this.queryParameters);
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,60 @@
|
|||
package ch.fritteli.labyrinth.server.handler;
|
||||
|
||||
import ch.fritteli.labyrinth.generator.model.Labyrinth;
|
||||
import ch.fritteli.labyrinth.generator.serialization.SerializerDeserializer;
|
||||
import ch.fritteli.labyrinth.server.OutputType;
|
||||
import io.undertow.server.HttpServerExchange;
|
||||
import io.undertow.util.HeaderValues;
|
||||
import io.undertow.util.Headers;
|
||||
import io.undertow.util.StatusCodes;
|
||||
import java.nio.ByteBuffer;
|
||||
import lombok.NonNull;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
@Slf4j
|
||||
public class RenderHandler extends AbstractHttpHandler {
|
||||
|
||||
public static final String PATH_TEMPLATE = "/render/{output}";
|
||||
|
||||
@Override
|
||||
public void handle(final HttpServerExchange exchange) {
|
||||
log.debug("Handling render request");
|
||||
|
||||
if (exchange.isInIoThread()) {
|
||||
exchange.dispatch(this);
|
||||
return;
|
||||
}
|
||||
exchange.getRequestReceiver().receiveFullBytes((httpServerExchange, bytes) -> {
|
||||
final OutputType output = this.getOutputType(httpServerExchange);
|
||||
final byte[] render;
|
||||
try {
|
||||
final Labyrinth labyrinth = SerializerDeserializer.deserialize(bytes);
|
||||
render = output.render(labyrinth);
|
||||
} catch (final Exception e) {
|
||||
log.error("Error rendering binary labyrinth data", e);
|
||||
httpServerExchange.setStatusCode(StatusCodes.INTERNAL_SERVER_ERROR)
|
||||
.getResponseSender()
|
||||
.send("Error rendering labyrinth: %s".formatted(e.getMessage()));
|
||||
return;
|
||||
}
|
||||
httpServerExchange
|
||||
.setStatusCode(StatusCodes.OK)
|
||||
.getResponseHeaders()
|
||||
.put(Headers.CONTENT_TYPE, output.getContentType());
|
||||
httpServerExchange.getResponseSender()
|
||||
.send(ByteBuffer.wrap(render));
|
||||
});
|
||||
}
|
||||
|
||||
@NonNull
|
||||
private OutputType getOutputType(@NonNull final HttpServerExchange httpServerExchange) {
|
||||
return RequestParameter.OUTPUT.<OutputType>getParameterValue(httpServerExchange.getQueryParameters())
|
||||
.getOrElse(() -> {
|
||||
final HeaderValues accept = httpServerExchange.getRequestHeaders().get(Headers.ACCEPT);
|
||||
if (accept.contains(OutputType.HTML.getContentType())) {
|
||||
return OutputType.HTML;
|
||||
}
|
||||
return OutputType.TEXT_PLAIN;
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,54 @@
|
|||
package ch.fritteli.labyrinth.server.handler;
|
||||
|
||||
import ch.fritteli.labyrinth.server.OutputType;
|
||||
import io.vavr.Tuple2;
|
||||
import io.vavr.collection.HashMap;
|
||||
import io.vavr.collection.HashSet;
|
||||
import io.vavr.collection.Set;
|
||||
import io.vavr.control.Option;
|
||||
import io.vavr.control.Try;
|
||||
import java.util.Deque;
|
||||
import java.util.Map;
|
||||
import java.util.function.Function;
|
||||
import lombok.Getter;
|
||||
import lombok.NonNull;
|
||||
import lombok.extern.slf4j.Slf4j;
|
||||
|
||||
@Slf4j
|
||||
enum RequestParameter {
|
||||
WIDTH(p -> Try.of(() -> Integer.parseInt(p))
|
||||
.toOption()
|
||||
.onEmpty(() -> log.debug("Unparseable value for parameter 'width': '{}'", p)), "w", "width"),
|
||||
HEIGHT(p -> Try.of(() -> Integer.parseInt(p))
|
||||
.toOption()
|
||||
.onEmpty(() -> log.debug("Unparseable value for parameter 'height': '{}'", p)), "h", "height"),
|
||||
ID(p -> Try.of(() -> Long.parseLong(p))
|
||||
.toOption()
|
||||
.onEmpty(() -> log.debug("Unparseable value for parameter 'id': '{}'", p)), "i", "id"),
|
||||
OUTPUT(p -> OutputType.ofString(p)
|
||||
.onEmpty(() -> log.debug("Unparseable value for parameter 'output': '{}'", p)), "o", "output");
|
||||
@NonNull
|
||||
private final Function<String, Option<?>> extractor;
|
||||
@Getter
|
||||
@NonNull
|
||||
private final Set<String> names;
|
||||
|
||||
RequestParameter(@NonNull final Function<String, Option<?>> extractor, @NonNull final String... names) {
|
||||
this.extractor = extractor;
|
||||
this.names = HashSet.of(names);
|
||||
}
|
||||
|
||||
@NonNull
|
||||
Option<?> extractParameterValue(@NonNull final String parameter) {
|
||||
return this.extractor.apply(parameter);
|
||||
}
|
||||
|
||||
@NonNull
|
||||
public <T> Option<T> getParameterValue(@NonNull final Map<String, Deque<String>> queryParameters) {
|
||||
return (Option<T>) HashMap.ofAll(queryParameters)
|
||||
.filterKeys(this.names::contains)
|
||||
.flatMap(Tuple2::_2)
|
||||
.flatMap(this::extractParameterValue)
|
||||
.headOption();
|
||||
}
|
||||
}
|
||||
|
|
@ -6,12 +6,12 @@
|
|||
<!-- encoders are by default assigned the type
|
||||
ch.qos.logback.classic.encoder.PatternLayoutEncoder -->
|
||||
<encoder>
|
||||
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
|
||||
<pattern>%d{HH:mm:ss.SSS} %-5level %X{correlationId} [%thread] %logger{36} - %msg%n</pattern>
|
||||
</encoder>
|
||||
</appender>
|
||||
|
||||
<root level="info">
|
||||
<appender-ref ref="STDOUT"/>
|
||||
</root>
|
||||
<logger name="ch.fritteli.labyrinth.server.StaticResourcesFileHandler" level="debug"/>
|
||||
<logger name="ch.fritteli.labyrinth.*" level="debug"/>
|
||||
</configuration>
|
||||
|
|
|
|||
|
|
@ -1,33 +0,0 @@
|
|||
<!DOCTYPE html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8">
|
||||
<title>Labyrinth Generator</title>
|
||||
<link rel="stylesheet" href="style.css">
|
||||
</head>
|
||||
<body>
|
||||
<div class="content">
|
||||
<h1>Labyrinth Generator</h1>
|
||||
<p>Enter some values, click the "Create!" button and see what happens!</p>
|
||||
<form action="/create" method="get">
|
||||
<div class="inputs-wrapper">
|
||||
<label for="width">Width:</label><input id="width" name="width" type="number" min="1" required>
|
||||
<label for="height">Height:</label><input id="height" name="height" type="number" min="1" required>
|
||||
<label for="output">Output format:</label>
|
||||
<select id="output" name="output" required>
|
||||
<option label="HTML Document" value="html"></option>
|
||||
<option label="Plain text" value="text"></option>
|
||||
<option label="PDF Document" value="pdf"></option>
|
||||
<option label="PDF Document (Download)" value="pdffile"></option>
|
||||
<option label="Binary" value="binary"></option>
|
||||
</select>
|
||||
<label for="id">Seed (optional):</label><input id="id" name="id" type="number">
|
||||
</div>
|
||||
<div class="controls-wrapper">
|
||||
<button type="submit" class="primary">Create!</button>
|
||||
<button type="reset">Reset form</button>
|
||||
</div>
|
||||
</form>
|
||||
</div>
|
||||
</body>
|
||||
</html>
|
||||
|
|
@ -1,51 +0,0 @@
|
|||
:root {
|
||||
--color-background: #181a1b;
|
||||
--color-foreground: #e8e6e3;
|
||||
--color-border: #5d6164;
|
||||
--color-background-highlight: #292b2c;
|
||||
--color-foreground-highlight: #f8f7f4;
|
||||
--color-border-highlight: #6e7275;
|
||||
}
|
||||
|
||||
body {
|
||||
display: flex;
|
||||
font-family: sans-serif;
|
||||
justify-content: center;
|
||||
}
|
||||
|
||||
body, button, input, select {
|
||||
background-color: var(--color-background);
|
||||
color: var(--color-foreground);
|
||||
}
|
||||
|
||||
button, input, select {
|
||||
border: 1px solid var(--color-border);
|
||||
}
|
||||
|
||||
button:active, input:active, select:active,
|
||||
button:focus, input:focus, select:focus,
|
||||
button:hover, input:hover, select:hover {
|
||||
background-color: var(--color-background-highlight);
|
||||
border-color: var(--color-border-highlight);
|
||||
color: var(--color-foreground-highlight);
|
||||
}
|
||||
|
||||
button.primary {
|
||||
background-color: #ffcc00;
|
||||
border-color: #eebb00;
|
||||
color: var(--color-background);
|
||||
}
|
||||
|
||||
.content {
|
||||
width: 75%;
|
||||
}
|
||||
|
||||
.content h1 {
|
||||
text-align: center;
|
||||
}
|
||||
|
||||
.inputs-wrapper {
|
||||
display: grid;
|
||||
grid-row-gap: 1em;
|
||||
grid-template-columns: 0.5fr 1fr;
|
||||
}
|
||||
Loading…
Reference in a new issue