feature/render-binary #1
7 changed files with 327 additions and 94 deletions
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@ -13,15 +13,16 @@
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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<orderEntry type="module" module-name="labyrinth-generator" />
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<orderEntry type="library" name="Maven: org.apache.pdfbox:pdfbox:2.0.20" level="project" />
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<orderEntry type="library" name="Maven: org.apache.pdfbox:fontbox:2.0.20" level="project" />
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<orderEntry type="library" name="Maven: org.apache.pdfbox:pdfbox:2.0.25" level="project" />
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<orderEntry type="library" name="Maven: org.apache.pdfbox:fontbox:2.0.25" level="project" />
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<orderEntry type="library" name="Maven: commons-logging:commons-logging:1.2" level="project" />
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<orderEntry type="library" name="Maven: io.vavr:vavr:0.10.2" level="project" />
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<orderEntry type="library" name="Maven: io.vavr:vavr-match:0.10.2" level="project" />
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<orderEntry type="library" scope="PROVIDED" name="Maven: org.projectlombok:lombok:1.18.12" level="project" />
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<orderEntry type="library" name="Maven: org.jetbrains:annotations:19.0.0" level="project" />
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<orderEntry type="library" name="Maven: org.slf4j:slf4j-api:1.7.30" level="project" />
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<orderEntry type="library" name="Maven: org.slf4j:slf4j-simple:1.7.30" level="project" />
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<orderEntry type="library" name="Maven: org.slf4j:slf4j-api:1.7.35" level="project" />
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<orderEntry type="library" name="Maven: ch.qos.logback:logback-classic:1.2.10" level="project" />
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<orderEntry type="library" name="Maven: ch.qos.logback:logback-core:1.2.10" level="project" />
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<orderEntry type="library" scope="TEST" name="Maven: org.junit.jupiter:junit-jupiter-api:5.6.1" level="project" />
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<orderEntry type="library" scope="TEST" name="Maven: org.apiguardian:apiguardian-api:1.1.0" level="project" />
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<orderEntry type="library" scope="TEST" name="Maven: org.opentest4j:opentest4j:1.2.0" level="project" />
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28
pom.xml
28
pom.xml
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@ -14,6 +14,10 @@
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<artifactId>labyrinth-server</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<properties>
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<slf4j.version>1.7.35</slf4j.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>ch.fritteli.labyrinth</groupId>
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@ -35,12 +39,12 @@
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>1.7.30</version>
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<version>${slf4j.version}</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-simple</artifactId>
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<version>1.7.30</version>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>1.2.10</version>
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</dependency>
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<dependency>
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<groupId>org.junit.jupiter</groupId>
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@ -95,12 +99,24 @@
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</distributionManagement>
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<repositories>
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<repository>
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<id>repo.gittr.ch</id>
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<url>https://repo.gittr.ch/</url>
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<id>repo.gittr.ch.releases</id>
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<url>https://repo.gittr.ch/releases/</url>
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<releases>
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<enabled>true</enabled>
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<updatePolicy>never</updatePolicy>
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</releases>
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<snapshots>
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<enabled>false</enabled>
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<updatePolicy>never</updatePolicy>
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</snapshots>
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</repository>
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<repository>
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<id>repo.gittr.ch.snapshots</id>
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<url>https://repo.gittr.ch/snapshots/</url>
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<releases>
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<enabled>false</enabled>
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<updatePolicy>never</updatePolicy>
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</releases>
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<snapshots>
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<enabled>true</enabled>
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<updatePolicy>always</updatePolicy>
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@ -24,20 +24,24 @@ 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.net.URISyntaxException;
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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.Executors;
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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 = Executors.newCachedThreadPool();
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public LabyrinthServer(@NonNull final ServerConfig config) throws IOException {
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public LabyrinthServer(@NonNull final ServerConfig config) throws IOException, URISyntaxException {
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this.httpServer = HttpServer.create(new InetSocketAddress(config.getAddress(), config.getPort()), 5);
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this.httpServer.createContext("/", exchange -> {
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exchange.getResponseHeaders().add("Location", "/create");
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exchange.sendResponseHeaders(302, -1);
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});
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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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}
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@ -94,97 +98,111 @@ public class LabyrinthServer {
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public 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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log.info("Server stopped.");
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}
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private void handleCreate(HttpExchange exchange) throws IOException {
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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("GET")) {
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exchange.getResponseBody().close();
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exchange.sendResponseHeaders(405, -1);
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exchange.close();
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return;
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}
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final Map<RequestParameter, String> requestParams = this.parseQueryString(exchange.getRequestURI().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, 5);
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final Option<Long> idOption = requestParams.get(RequestParameter.ID).toTry().map(Long::valueOf).toOption();
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final Option<OutputType> outputOption = requestParams.get(RequestParameter.OUTPUT).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)).getOrElse(OutputType.HTML);
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if (needsRedirect.get()) {
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responseHeaders.add("Location", "/create?width=" + width + "&height=" + height + "&output=" + output.toString() + "&id=" + id);
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exchange.sendResponseHeaders(302, -1);
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exchange.close();
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return;
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}
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final Labyrinth labyrinth = new Labyrinth(width, height, id);
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final byte[] render;
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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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exchange.close();
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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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exchange.close();
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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().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, 5);
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final Option<Long> idOption = requestParams.get(RequestParameter.ID).toTry().map(Long::valueOf).toOption();
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final Option<OutputType> outputOption = requestParams.get(RequestParameter.OUTPUT).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)).getOrElse(OutputType.HTML);
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if (needsRedirect.get()) {
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responseHeaders.add("Location", "/create?width=" + width + "&height=" + height + "&output=" + output.toString() + "&id=" + id);
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exchange.sendResponseHeaders(302, -1);
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return;
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}
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final Labyrinth labyrinth = new Labyrinth(width, height, id);
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final byte[] render;
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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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if (output.equals(OutputType.BINARY)) {
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responseHeaders.add("Content-disposition", "attachment; filename=\"labyrinth-" + width + "x" + height + "-" + id + ".laby\"");
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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) throws IOException {
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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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@NonNull final Labyrinth labyrinth;
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this.executorService.submit(() -> {
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try {
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labyrinth = SerializerDeserializer.deserialize(bytes);
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} catch (Exception e) {
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e.printStackTrace();
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throw e;
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}
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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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OutputType output = exchange.getRequestHeaders()
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.get("Accept")
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.contains("text/html") ?
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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 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("text/html") ?
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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(("Error: " + e).getBytes(StandardCharsets.UTF_8));
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responseBody.write(render);
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responseBody.flush();
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return;
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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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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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} finally {
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exchange.close();
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}
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});
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}
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private enum RequestParameter {
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@ -0,0 +1,98 @@
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package ch.fritteli.labyrinth.server;
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import com.sun.net.httpserver.HttpExchange;
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import com.sun.net.httpserver.HttpHandler;
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import lombok.NonNull;
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import lombok.extern.slf4j.Slf4j;
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import org.apache.pdfbox.io.IOUtils;
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import org.jetbrains.annotations.Nullable;
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import java.io.IOException;
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import java.io.InputStream;
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import java.net.URI;
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import java.nio.charset.StandardCharsets;
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import java.util.concurrent.ExecutorService;
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@Slf4j
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public class StaticResourcesFileHandler implements HttpHandler {
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public static final String WEBASSETS_DIRECTORY = "webassets";
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private final ExecutorService executorService;
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public StaticResourcesFileHandler(final ExecutorService executorService) {
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this.executorService = executorService;
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}
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private static void redirect(@NonNull final HttpExchange exchange, @NonNull final String target) throws IOException {
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log.debug("Sending redirect to {}", target);
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exchange.getResponseHeaders().add("Location", target);
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exchange.sendResponseHeaders(302, -1);
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}
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private static void notFound(@NonNull final HttpExchange exchange, @NonNull final String path) throws IOException {
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log.debug("Resource '{}' not found, replying with HTTP 404", path);
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exchange.getResponseHeaders().add("Content-type", "text/plain; charset=utf-8");
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exchange.sendResponseHeaders(404, 0);
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exchange.getResponseBody().write("404 - Not found".getBytes(StandardCharsets.UTF_8));
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exchange.getResponseBody().flush();
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}
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@NonNull
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private static byte[] getBytes(@NonNull final String path) throws IOException {
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final InputStream stream = StaticResourcesFileHandler.class.getClassLoader().getResourceAsStream(WEBASSETS_DIRECTORY + path);
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if (stream == null) {
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log.debug("Resource '{}' not found in classpath.", path);
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return new byte[0];
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}
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return IOUtils.toByteArray(stream);
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}
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@Nullable
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private static String getMimeType(@NonNull final String path) {
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if (path.endsWith(".html")) {
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return "text/html";
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}
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if (path.endsWith(".css")) {
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return "text/css";
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}
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return null;
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||||
}
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||||
|
||||
@Override
|
||||
public void handle(@NonNull final HttpExchange exchange) throws IOException {
|
||||
this.executorService.submit(() -> {
|
||||
try {
|
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final URI requestURI = exchange.getRequestURI();
|
||||
final String path = requestURI.getPath();
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log.debug("Handling request to {}", path);
|
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if ("/".equals(path)) {
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redirect(exchange, "/index.html");
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return;
|
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}
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if (!path.startsWith("/")) {
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notFound(exchange, path);
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return;
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}
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final String mimeType = getMimeType(path);
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if (mimeType == null) {
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notFound(exchange, path);
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return;
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}
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final byte[] responseBytes = getBytes(path);
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if (responseBytes.length == 0) {
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notFound(exchange, path);
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return;
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}
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log.debug("Serving {}{} with mimetype {}: {} bytes", WEBASSETS_DIRECTORY, path, mimeType, responseBytes.length);
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exchange.getResponseHeaders().add("Content-type", mimeType);
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exchange.sendResponseHeaders(200, 0);
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exchange.getResponseBody().write(responseBytes);
|
||||
exchange.getResponseBody().flush();
|
||||
} 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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17
src/main/resources/logback.xml
Normal file
17
src/main/resources/logback.xml
Normal file
|
|
@ -0,0 +1,17 @@
|
|||
<?xml version="1.0" encoding="utf-8" ?>
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<configuration>
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<shutdownHook class="ch.qos.logback.core.hook.DelayingShutdownHook"/>
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||||
|
||||
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
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||||
<!-- encoders are by default assigned the type
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||||
ch.qos.logback.classic.encoder.PatternLayoutEncoder -->
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||||
<encoder>
|
||||
<pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern>
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||||
</encoder>
|
||||
</appender>
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||||
|
||||
<root level="info">
|
||||
<appender-ref ref="STDOUT"/>
|
||||
</root>
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||||
<logger name="ch.fritteli.labyrinth.server.StaticResourcesFileHandler" level="debug"/>
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||||
</configuration>
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||||
32
src/main/resources/webassets/index.html
Normal file
32
src/main/resources/webassets/index.html
Normal file
|
|
@ -0,0 +1,32 @@
|
|||
<!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="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>
|
||||
51
src/main/resources/webassets/style.css
Normal file
51
src/main/resources/webassets/style.css
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
: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