Announce support

API/api/src/main/java/tc/oc/api/ApiManifest.java

@@ -3,6 +3,7 @@ package tc.oc.api;
 import tc.oc.api.document.DocumentsManifest;
 import tc.oc.api.engagement.EngagementModelManifest;
 import tc.oc.api.games.GameModelManifest;
+import tc.oc.api.http.HttpManifest;
 import tc.oc.api.maps.MapModelManifest;
 import tc.oc.api.match.MatchModelManifest;
 import tc.oc.api.message.MessagesManifest;
@@ -29,6 +30,7 @@ public final class ApiManifest extends HybridManifest {
         install(new DocumentsManifest());
         install(new MessagesManifest());
         install(new ModelsManifest());
+        install(new HttpManifest());
 
         install(new ServerModelManifest());
         install(new UserModelManifest());

API/api/src/main/java/tc/oc/api/http/HttpClient.java

@@ -3,6 +3,8 @@ package tc.oc.api.http;
 import java.io.IOException;
 import java.io.OutputStream;
 import java.lang.reflect.Type;
+import java.net.MalformedURLException;
+import java.net.URL;
 import java.time.Duration;
 import java.util.concurrent.Callable;
 import java.util.concurrent.Executors;
@@ -105,10 +107,6 @@ public class HttpClient implements Connectable {
         });
     }
 
-    public String getBaseUrl() {
-        return this.config.getBaseUrl();
-    }
-
     public ListenableFuture<?> get(String path, HttpOption... options) {
         return get(path, (TypeToken) null, options);
     }
@@ -166,11 +164,17 @@ public class HttpClient implements Connectable {
     }
 
     protected <T> ListenableFuture<T> request(String method, String path, @Nullable Object content, @Nullable TypeToken<T> returnType, HttpOption...options) {
+        final GenericUrl url;
+        try {
+            url = new GenericUrl(new URL(config.getBaseUrl(), path));
+        } catch(MalformedURLException e) {
+            throw new IllegalArgumentException(e.getMessage());
+        }
+
         // NOTE: Serialization must happen synchronously, because getter methods may not be thread-safe
         final HttpContent httpContent = content == null ? null : new Content(gson.toJson(content));
 
-        GenericUrl url = new GenericUrl(this.getBaseUrl() + path);
+        final HttpRequest request;
-        HttpRequest request;
         try {
             request = requestFactory.buildRequest(method, url, httpContent).setThrowExceptionOnExecuteError(false);
         } catch (IOException e) {

API/api/src/main/java/tc/oc/api/http/HttpClientConfiguration.java

@@ -1,5 +1,7 @@
 package tc.oc.api.http;
 
+import java.net.URL;
+
 public interface HttpClientConfiguration {
 
     int DEFAULT_THREADS = 0;
@@ -10,7 +12,7 @@ public interface HttpClientConfiguration {
     /**
      * Base URL of the API. End points will be appended to this address.
      */
-    String getBaseUrl();
+    URL getBaseUrl();
 
     /**
      * Number of threads to execute requests. 0 indicates an unbounded number

API/api/src/main/java/tc/oc/api/http/HttpClientConfigurationImpl.java

@@ -1,7 +1,9 @@
 package tc.oc.api.http;
 
+import java.net.URL;
 import javax.inject.Inject;
 
+import tc.oc.commons.core.configuration.ConfigUtils;
 import tc.oc.minecraft.api.configuration.Configuration;
 import tc.oc.minecraft.api.configuration.ConfigurationSection;
 
@@ -24,8 +26,8 @@ public class HttpClientConfigurationImpl implements HttpClientConfiguration {
     }
 
     @Override
-    public String getBaseUrl() {
+    public URL getBaseUrl() {
-        return config.getString(BASE_URL_PATH);
+        return ConfigUtils.needUrl(config, BASE_URL_PATH);
     }
 
     @Override

API/api/src/main/java/tc/oc/api/http/HttpManifest.java

@@ -7,7 +7,7 @@ public class HttpManifest extends HybridManifest {
     @Override
     protected void configure() {
         expose(HttpClient.class);
-        bind(HttpClient.class);
+        bind(HttpClient.class).asEagerSingleton();
         bind(HttpClientConfiguration.class)
             .to(HttpClientConfigurationImpl.class);
     }

API/api/src/main/resources/config.yml

@@ -33,5 +33,3 @@ queue:
 logging:
   root:
     level: INFO
-  tc-oc-api-bukkit-BukkitApi:
-    level: INFO

API/ocn/src/main/java/tc/oc/api/ocn/OCNApiManifest.java

@@ -1,6 +1,5 @@
 package tc.oc.api.ocn;
 
-import tc.oc.api.http.HttpManifest;
 import tc.oc.api.minecraft.queue.MinecraftQueueManifest;
 import tc.oc.api.model.ModelBinders;
 import tc.oc.commons.core.inject.HybridManifest;
@@ -11,6 +10,5 @@ public class OCNApiManifest extends HybridManifest implements ModelBinders {
     protected void configure() {
         install(new OCNModelsManifest());
         install(new MinecraftQueueManifest());
-        install(new HttpManifest());
     }
 }

Commons/core/src/main/i18n/templates/pgm/PGMMessages.properties

@@ -224,3 +224,6 @@ tnt.license.use.restricted = You need a TNT license to use TNT or Redstone on th
 item.locked = This item cannot be removed from its slot
 
 stats.hotbar = {0} kills ({1} streak)  {2} deaths  {3} K/D
+
+announce.online = Announced server as online
+announce.offline = Announced server as offline

PGM/src/main/java/tc/oc/pgm/PGMManifest.java

@@ -19,6 +19,7 @@ import tc.oc.pgm.freeze.FreezeListener;
 import tc.oc.pgm.listeners.BlockTransformListener;
 import tc.oc.pgm.listeners.MatchAnnouncer;
 import tc.oc.pgm.listeners.PGMListener;
+import tc.oc.pgm.listing.ListingManifest;
 import tc.oc.pgm.map.MapLibrary;
 import tc.oc.pgm.map.MapLibraryImpl;
 import tc.oc.pgm.map.MapLoader;
@@ -56,6 +57,8 @@ public final class PGMManifest extends HybridManifest {
         install(new MatchPlayerEventRouter.Manifest());
         install(new MatchAnalyticsManifest());
 
+        install(new ListingManifest());
+
         bind(MatchManager.class);
         bind(MatchLoader.class);
         bind(MatchFinder.class).to(MatchLoader.class);

PGM/src/main/java/tc/oc/pgm/listing/ListingCommands.java

@@ -0,0 +1,34 @@
+package tc.oc.pgm.listing;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import com.google.common.collect.ImmutableList;
+import com.sk89q.minecraft.util.commands.Command;
+import com.sk89q.minecraft.util.commands.CommandContext;
+import com.sk89q.minecraft.util.commands.CommandException;
+import com.sk89q.minecraft.util.commands.CommandPermissions;
+import com.sk89q.minecraft.util.commands.SuggestException;
+import org.bukkit.command.CommandSender;
+
+@Singleton
+public class ListingCommands {
+
+    private final ListingService listingService;
+
+    @Inject ListingCommands(ListingService listingService) {
+        this.listingService = listingService;
+    }
+
+    @Command(
+        aliases = "announce",
+        usage = "[on|off]",
+        desc = "Announce the server to the public listing service",
+        min = 0,
+        max = 1
+    )
+    @CommandPermissions("pgm.listing.announce")
+    public void announce(CommandContext args, CommandSender sender) throws CommandException, SuggestException {
+        listingService.update("on".equals(args.tryString(0, ImmutableList.of("on", "off")).orElse("on")), sender);
+    }
+}

PGM/src/main/java/tc/oc/pgm/listing/ListingConfiguration.java

@@ -0,0 +1,37 @@
+package tc.oc.pgm.listing;
+
+import java.net.URL;
+import java.util.OptionalInt;
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+
+import tc.oc.commons.core.configuration.ConfigUtils;
+import tc.oc.minecraft.api.configuration.Configuration;
+import tc.oc.minecraft.api.configuration.ConfigurationSection;
+import tc.oc.net.UriUtils;
+
+class ListingConfiguration {
+
+    private final ConfigurationSection config;
+
+    @Inject ListingConfiguration(Configuration root) {
+        this.config = root.needSection("announce");
+    }
+
+    public boolean enabled() {
+        return config.getBoolean("enabled", false);
+    }
+
+    public URL announceUrl() {
+        return ConfigUtils.getUrl(config, "url", UriUtils.url("https://oc.tc/announce"));
+    }
+
+    public @Nullable String serverHost() {
+        return config.getString("server-host");
+    }
+
+    public OptionalInt serverPort() {
+        final int port = config.getInt("server-port", 0);
+        return port != 0 ? OptionalInt.of(port) : OptionalInt.empty();
+    }
+}

PGM/src/main/java/tc/oc/pgm/listing/ListingManifest.java

@@ -0,0 +1,21 @@
+package tc.oc.pgm.listing;
+
+import tc.oc.commons.core.commands.CommandBinder;
+import tc.oc.commons.core.inject.HybridManifest;
+import tc.oc.minecraft.api.event.ListenerBinder;
+
+public class ListingManifest extends HybridManifest {
+
+    @Override
+    protected void configure() {
+        bind(ListingConfiguration.class);
+        bind(ListingService.class).to(ListingServiceImpl.class);
+
+        final ListenerBinder listeners = new ListenerBinder(binder());
+        listeners.bindListener().to(PingListener.class);
+        listeners.bindListener().to(ListingServiceImpl.class);
+
+        new CommandBinder(binder())
+            .register(ListingCommands.class);
+    }
+}

PGM/src/main/java/tc/oc/pgm/listing/ListingService.java

@@ -0,0 +1,16 @@
+package tc.oc.pgm.listing;
+
+import javax.annotation.Nullable;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import org.bukkit.command.CommandSender;
+import tc.oc.api.message.types.Reply;
+
+public interface ListingService {
+
+    ListenableFuture<Reply> update(boolean online);
+
+    ListenableFuture<Reply> update(boolean online, CommandSender sender);
+
+    @Nullable String sessionDigest();
+}

PGM/src/main/java/tc/oc/pgm/listing/ListingServiceImpl.java

@@ -0,0 +1,118 @@
+package tc.oc.pgm.listing;
+
+import java.security.SecureRandom;
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+import javax.inject.Singleton;
+
+import com.google.common.util.concurrent.ListenableFuture;
+import net.md_5.bungee.api.chat.TranslatableComponent;
+import org.apache.commons.codec.binary.Hex;
+import org.apache.commons.codec.digest.DigestUtils;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.ConsoleCommandSender;
+import tc.oc.api.http.HttpClient;
+import tc.oc.api.http.HttpOption;
+import tc.oc.api.message.types.Reply;
+import tc.oc.commons.bukkit.chat.Audiences;
+import tc.oc.commons.core.commands.CommandFutureCallback;
+import tc.oc.commons.core.concurrent.Flexecutor;
+import tc.oc.minecraft.api.event.Enableable;
+import tc.oc.minecraft.api.server.LocalServer;
+import tc.oc.minecraft.scheduler.Sync;
+
+@Singleton
+class ListingServiceImpl implements ListingService, Enableable {
+
+    private final HttpClient http;
+    private final ListingConfiguration config;
+    private final LocalServer localServer;
+    private final SecureRandom random = new SecureRandom();
+    private final Flexecutor executor;
+    private final Audiences audiences;
+    private final ConsoleCommandSender console;
+
+    private boolean online;
+    private @Nullable String sessionId;
+    private @Nullable String sessionDigest;
+
+    @Inject ListingServiceImpl(HttpClient http, ListingConfiguration config, LocalServer localServer, @Sync(defer = true) Flexecutor executor, Audiences audiences, ConsoleCommandSender console) {
+        this.http = http;
+        this.config = config;
+        this.localServer = localServer;
+        this.executor = executor;
+        this.audiences = audiences;
+        this.console = console;
+    }
+
+    @Override
+    public @Nullable String sessionDigest() {
+        return sessionDigest;
+    }
+
+    @Override
+    public void enable() {
+        if(config.enabled()) {
+            // Don't announce until we are ready to receive the ping
+            executor.execute(() -> update(true));
+        }
+    }
+
+    @Override
+    public void disable() {
+        if(online) {
+            update(false);
+        }
+    }
+
+    @Override
+    public ListenableFuture<Reply> update(boolean online) {
+        return update(online, console);
+    }
+
+    @Override
+    public ListenableFuture<Reply> update(boolean online, CommandSender sender) {
+        this.online = online;
+
+        if(sessionId == null) {
+            final byte[] bytes = new byte[20];
+            random.nextBytes(bytes);
+            sessionId = Hex.encodeHexString(bytes);
+            sessionDigest = DigestUtils.sha1Hex(sessionId);
+        }
+
+        final ListenableFuture<Reply> future = http.post(config.announceUrl().toString(), new ListingUpdate() {
+            @Override public @Nullable String host() {
+                return config.serverHost();
+            }
+
+            @Override
+            public int port() {
+                return config.serverPort().orElseGet(localServer::getPort);
+            }
+
+            @Override
+            public boolean online() {
+                return online;
+            }
+
+            @Override
+            public String session() {
+                return sessionId;
+            }
+        }, Reply.class, HttpOption.INFINITE_RETRY);
+
+        executor.callback(
+            future,
+            CommandFutureCallback.onSuccess(sender, reply -> {
+                if(!online) {
+                    sessionId = sessionDigest = null;
+                }
+
+                audiences.get(sender).sendMessage(new TranslatableComponent(online ? "announce.online" : "announce.offline"));
+            })
+        );
+
+        return future;
+    }
+}

PGM/src/main/java/tc/oc/pgm/listing/ListingUpdate.java

@@ -0,0 +1,18 @@
+package tc.oc.pgm.listing;
+
+import javax.annotation.Nullable;
+
+import tc.oc.api.annotations.Serialize;
+import tc.oc.api.docs.virtual.Document;
+
+@Serialize
+public interface ListingUpdate extends Document {
+
+    @Nullable String host();
+
+    int port();
+
+    boolean online();
+
+    String session();
+}

PGM/src/main/java/tc/oc/pgm/listing/PingListener.java

@@ -0,0 +1,54 @@
+package tc.oc.pgm.listing;
+
+import javax.annotation.Nullable;
+import javax.inject.Inject;
+import javax.inject.Provider;
+import javax.inject.Singleton;
+
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.server.ServerListPingEvent;
+import tc.oc.minecraft.api.event.Enableable;
+import tc.oc.pgm.match.Match;
+
+@Singleton
+public class PingListener implements Listener, Enableable {
+
+    private final Provider<Match> matchProvider;
+    private final ListingService listingService;
+
+    @Inject PingListener(Provider<Match> matchProvider, ListingService listingService) {
+        this.matchProvider = matchProvider;
+        this.listingService = listingService;
+    }
+
+    @EventHandler
+    private void onPing(ServerListPingEvent event) {
+        event.getExtra().put("pgm", new Info());
+    }
+
+    private class Info {
+        private class Map {
+            final String name;
+            final @Nullable String icon;
+
+            private Map(String name, String icon) {
+                this.name = name;
+                this.icon = icon;
+            }
+        }
+
+        final @Nullable String session = listingService.sessionDigest();
+        final Map map;
+        final int participants;
+        final int observers;
+
+        Info() {
+            final Match match = matchProvider.get();
+            this.map = new Map(match.getMap().getName(),
+                               match.getMap().getThumbnailUri().orElse(null));
+            this.participants = match.getParticipatingPlayers().size();
+            this.observers = match.getObservingPlayers().size();
+        }
+    }
+}

PGM/src/main/java/tc/oc/pgm/map/MapDefinition.java

@@ -4,6 +4,7 @@ import java.io.IOException;
 import java.nio.file.Path;
 import java.util.List;
 import java.util.Map;
+import java.util.Optional;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 import javax.inject.Provider;
@@ -64,6 +65,10 @@ public class MapDefinition {
         return folder;
     }
 
+    public Optional<String> getThumbnailUri() {
+        return getFolder().getThumbnailUri();
+    }
+
     public String getDottedPath() {
         return Joiner.on(".").join(getFolder().getRelativePath());
     }

PGM/src/main/java/tc/oc/pgm/map/MapDocument.java

@@ -10,6 +10,7 @@ import java.util.UUID;
 import javax.annotation.Nullable;
 import javax.inject.Inject;
 
+import com.google.common.collect.Collections2;
 import tc.oc.api.docs.AbstractModel;
 import tc.oc.api.docs.SemanticVersion;
 import tc.oc.api.docs.virtual.MapDoc;
@@ -105,7 +106,7 @@ public class MapDocument extends AbstractModel implements MapDoc {
 
     @Override
     public Collection<String> images() {
-        return folder.getThumbnails();
+        return Collections2.transform(folder.getImages(), path -> path.getFileName().toString());
     }
 
     @Override

PGM/src/main/java/tc/oc/pgm/map/MapFolder.java

@@ -9,14 +9,18 @@ import java.nio.file.Path;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Objects;
+import java.util.Optional;
 import javax.annotation.Nullable;
 
+import tc.oc.commons.core.util.Lazy;
 import tc.oc.commons.core.util.Utils;
+import tc.oc.image.ImageUtils;
 
 public class MapFolder {
 
     public static final String MAP_DESCRIPTION_FILE_NAME = "map.xml";
-    public static final String THUMBNAIL_FILE_NAME = "map.png";
+    public static final String IMAGE_FILE_NAME = "map.png";
+    public static final int THUMBNAIL_HEIGHT = 64;
 
     public static boolean isMapFolder(Path path) {
         return Files.isDirectory(path) && Files.isRegularFile(path.resolve(MAP_DESCRIPTION_FILE_NAME));
@@ -24,7 +28,17 @@ public class MapFolder {
 
     private final MapSource source;
     private final Path path;
-    private Collection<String> thumbnails;
+
+    private final Lazy<Collection<Path>> images = Lazy.from(() -> {
+        final Path path = getAbsolutePath().resolve(IMAGE_FILE_NAME);
+        return Files.isRegularFile(path)? Collections.singleton(path)
+                                        : Collections.emptySet();
+    });
+
+    private final Lazy<Optional<String>> thumbnailUri = Lazy.from(
+        () -> getImages().stream().findAny()
+                         .map(path -> ImageUtils.thumbnailUri(path, THUMBNAIL_HEIGHT))
+    );
 
     public MapFolder(MapSource source, Path path) {
         this.source = source;
@@ -111,14 +125,11 @@ public class MapFolder {
         return getRelativeUrl(getRelativeDescriptionFilePath());
     }
 
-    public Collection<String> getThumbnails() {
+    public Optional<String> getThumbnailUri() {
-        if(thumbnails == null) {
+        return thumbnailUri.get();
-            if(Files.isRegularFile(getAbsolutePath().resolve(THUMBNAIL_FILE_NAME))) {
+    }
-                thumbnails = Collections.singleton(THUMBNAIL_FILE_NAME);
+
-            } else {
+    public Collection<Path> getImages() {
-                thumbnails = Collections.emptySet();
+        return images.get();
-            }
-        }
-        return thumbnails;
     }
 }

PGM/src/main/resources/config.yml

@@ -59,6 +59,21 @@
 # If false, PGM will load its classes but not enable itself
 enabled: true
 
+# Public PGM listing service
+# --------------------------
+# If announce is enabled, and this server is running the PGM plugin,
+# the listing service will be notified whenever this server starts up
+# or shuts down. If the server is reachable at the announced address,
+# it will be included in the public list.
+#
+# WARNING: Enabling this will publish your IP address to the world,
+# unless you set server-host to something else.
+announce:
+  enabled: false                  # Announce this server?
+  # server-port: 25565            # Public port - defaults to whatever port is bound at startup
+  # server-host: myserver.com     # Public hostname or IP - if not set, the listing service will use
+                                  # the IP address that the announcement originates from
+
 # Variables accessible by the XML pre-processor
 environment:
   ranked: false

PGM/src/main/resources/plugin.yml

@@ -201,3 +201,7 @@ permissions:
 
   pgm.destroyable.edit:
     description: Allows the player to edit the properties of destroyables
+
+  pgm.listing.announce:
+    description: Allows the /announce command
+    default: op

Util/core/src/main/java/tc/oc/commons/core/configuration/ConfigUtils.java

@@ -1,5 +1,7 @@
 package tc.oc.commons.core.configuration;
 
+import java.net.MalformedURLException;
+import java.net.URL;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
@@ -15,6 +17,7 @@ import java.time.Duration;
 import tc.oc.commons.core.util.Predicates;
 import tc.oc.commons.core.util.TimeUtils;
 import tc.oc.minecraft.api.configuration.ConfigurationSection;
+import tc.oc.minecraft.api.configuration.InvalidConfigurationException;
 
 public final class ConfigUtils {
     private ConfigUtils() {}
@@ -50,6 +53,26 @@ public final class ConfigUtils {
         return getDuration(section, path, null);
     }
 
+    public static URL needUrl(ConfigurationSection section, String path) {
+        return parseUrl(section, path, section.needString(path), null);
+    }
+
+    public static @Nullable URL getUrl(ConfigurationSection section, String path) {
+        return getUrl(section, path, null);
+    }
+
+    public static URL getUrl(ConfigurationSection section, String path, URL def) {
+        return parseUrl(section, path, section.getString(path), def);
+    }
+
+    private static URL parseUrl(ConfigurationSection section, String path, @Nullable String value, URL def) {
+        try {
+            return value == null ? def : new URL(value);
+        } catch(MalformedURLException e) {
+            throw new InvalidConfigurationException(section, path, e.getMessage());
+        }
+    }
+
     private static void buildDeepMap(Map<String, Object> map, ConfigurationSection section, String prefix) {
         for(String key : section.getKeys()) {
             final Object obj = section.get(key);

Util/core/src/main/java/tc/oc/image/ImageUtils.java

@@ -0,0 +1,49 @@
+package tc.oc.image;
+
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.nio.file.Path;
+import javax.imageio.ImageIO;
+
+import com.google.common.base.Throwables;
+import com.google.common.collect.ImmutableMap;
+import tc.oc.net.UriUtils;
+
+public interface ImageUtils {
+
+    static BufferedImage resize(BufferedImage image, int width, int height) {
+        final BufferedImage resized = new BufferedImage(width, 64, image.getType());
+        final Graphics2D g = resized.createGraphics();
+        g.addRenderingHints(ImmutableMap.of(RenderingHints.KEY_INTERPOLATION,
+                                            RenderingHints.VALUE_INTERPOLATION_BILINEAR));
+        g.drawImage(image, 0, 0, width, height, null);
+        g.dispose();
+        return resized;
+    }
+
+    static byte[] png(BufferedImage image) {
+        try {
+            final ByteArrayOutputStream data = new ByteArrayOutputStream();
+            ImageIO.write(image, "png", data);
+            return data.toByteArray();
+        } catch(IOException e) {
+            throw Throwables.propagate(e);
+        }
+    }
+
+    static byte[] thumbnail(Path path, int height) {
+        try {
+            final BufferedImage image = ImageIO.read(path.toFile());
+            final BufferedImage thumb = resize(image, height * image.getWidth() / image.getHeight(), height);
+            return png(thumb);
+        } catch(IOException e) {
+            throw Throwables.propagate(e);
+        }
+    }
+
+    static String thumbnailUri(Path path, int height) {
+        return UriUtils.dataUri("image/png", thumbnail(path, height));
+    }
+}

Util/core/src/main/java/tc/oc/net/UriUtils.java

@@ -0,0 +1,20 @@
+package tc.oc.net;
+
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.util.Base64;
+
+public interface UriUtils {
+
+    static String dataUri(String mime, byte[] data) {
+        return "data:" + mime + ";base64," + Base64.getEncoder().encodeToString(data);
+    }
+
+    static URL url(String spec) {
+        try {
+            return new URL(spec);
+        } catch(MalformedURLException e) {
+            throw new IllegalArgumentException("Malformed URL: " + spec);
+        }
+    }
+}

pom.xml

@@ -92,7 +92,7 @@
             <dependency>
                 <groupId>commons-codec</groupId>
                 <artifactId>commons-codec</artifactId>
-                <version>1.3</version>
+                <version>1.8</version>
             </dependency>
             <dependency>
                 <groupId>net.sf.trove4j</groupId>