add server banned status and blocked endpoint

pom.xml

@@ -55,65 +55,18 @@
     </repositories>
 
     <dependencies>
-        <dependency>
+        <!-- Spring -->
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <version>1.18.32</version>
-            <scope>provided</scope>
-        </dependency>
-
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-api</artifactId>
-            <version>2.20.0</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.logging.log4j</groupId>
-            <artifactId>log4j-core</artifactId>
-            <version>2.20.0</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.yaml</groupId>
-            <artifactId>snakeyaml</artifactId>
-            <version>2.2</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>com.google.code.gson</groupId>
-            <artifactId>gson</artifactId>
-            <version>2.10.1</version>
-            <scope>compile</scope>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-web</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework.boot</groupId>
-            <artifactId>spring-boot-starter-thymeleaf</artifactId>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>net.jodah</groupId>
-            <artifactId>expiringmap</artifactId>
-            <version>0.5.11</version>
-            <scope>compile</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.httpcomponents.client5</groupId>
-            <artifactId>httpclient5</artifactId>
-            <version>5.3.1</version>
-            <scope>compile</scope>
-        </dependency>
 
-        <!-- DNS Lookup -->
+            <!-- Exclude the default Jackson dependency -->
-        <dependency>
+            <exclusions>
-            <groupId>com.github.dnsjava</groupId>
+                <exclusion>
-            <artifactId>dnsjava</artifactId>
+                    <groupId>org.springframework.boot</groupId>
-            <version>v3.5.2</version>
+                    <artifactId>spring-boot-starter-json</artifactId>
-            <scope>compile</scope>
+                </exclusion>
+            </exclusions>
         </dependency>
 
         <!-- Redis for caching -->
@@ -132,6 +85,47 @@
             <artifactId>jedis</artifactId>
         </dependency>
 
+        <!-- Libraries -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.18.32</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.google.code.gson</groupId>
+            <artifactId>gson</artifactId>
+            <version>2.10.1</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.jodah</groupId>
+            <artifactId>expiringmap</artifactId>
+            <version>0.5.11</version>
+            <scope>compile</scope>
+        </dependency>
+        <dependency>
+            <groupId>net.md-5</groupId>
+            <artifactId>bungeecord-chat</artifactId>
+            <version>1.20-R0.2</version>
+            <scope>compile</scope>
+        </dependency>
+
+        <!-- Web Templating -->
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-thymeleaf</artifactId>
+            <scope>compile</scope>
+        </dependency>
+
+        <!-- DNS Lookup -->
+        <dependency>
+            <groupId>com.github.dnsjava</groupId>
+            <artifactId>dnsjava</artifactId>
+            <version>v3.5.2</version>
+            <scope>compile</scope>
+        </dependency>
+
         <!-- SwaggerUI -->
         <dependency>
             <groupId>org.springdoc</groupId>
@@ -140,25 +134,7 @@
             <scope>compile</scope>
         </dependency>
 
-        <!--   Unit Tests    -->
+        <!-- Tests -->
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-engine</artifactId>
-            <version>5.10.2</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.junit.jupiter</groupId>
-            <artifactId>junit-jupiter-api</artifactId>
-            <version>5.10.2</version>
-            <scope>test</scope>
-        </dependency>
-        <dependency>
-            <groupId>org.springframework</groupId>
-            <artifactId>spring-test</artifactId>
-            <version>6.1.5</version>
-            <scope>test</scope>
-        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

src/main/java/cc.fascinated/common/ExpiringSet.java

@@ -0,0 +1,132 @@
+package cc.fascinated.common;
+
+import lombok.NonNull;
+import net.jodah.expiringmap.ExpirationPolicy;
+import net.jodah.expiringmap.ExpiringMap;
+
+import java.util.Iterator;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.function.Consumer;
+
+/**
+ * A simple set that expires elements after a certain
+ * amount of time, utilizing the {@link ExpiringMap} library.
+ *
+ * @param <T> The type of element to store within this set
+ * @author Braydon
+ */
+public final class ExpiringSet<T> implements Iterable<T> {
+    /**
+     * The internal cache for this set.
+     */
+    @NonNull private final ExpiringMap<T, Long> cache;
+
+    /**
+     * The lifetime (in millis) of the elements in this set.
+     */
+    private final long lifetime;
+
+    public ExpiringSet(@NonNull ExpirationPolicy expirationPolicy, long duration, @NonNull TimeUnit timeUnit) {
+        this(expirationPolicy, duration, timeUnit, ignored -> {});
+    }
+
+    public ExpiringSet(@NonNull ExpirationPolicy expirationPolicy, long duration, @NonNull TimeUnit timeUnit, @NonNull Consumer<T> onExpire) {
+        //noinspection unchecked
+        this.cache = ExpiringMap.builder()
+                .expirationPolicy(expirationPolicy)
+                .expiration(duration, timeUnit)
+                .expirationListener((key, ignored) -> onExpire.accept((T) key))
+                .build();
+        this.lifetime = timeUnit.toMillis(duration); // Get the lifetime in millis
+    }
+
+    /**
+     * Add an element to this set.
+     *
+     * @param element the element
+     * @return whether the element was added
+     */
+    public boolean add(@NonNull T element) {
+        boolean contains = contains(element); // Does this set already contain the element?
+        this.cache.put(element, System.currentTimeMillis() + this.lifetime);
+        return !contains;
+    }
+
+    /**
+     * Get the entry time of an element in this set.
+     *
+     * @param element the element
+     * @return the entry time, -1 if not contained
+     */
+    public long getEntryTime(@NonNull T element) {
+        return contains(element) ? this.cache.get(element) - this.lifetime : -1L;
+    }
+
+    /**
+     * Check if an element is
+     * contained within this set.
+     *
+     * @param element the element
+     * @return whether the element is contained
+     */
+    public boolean contains(@NonNull T element) {
+        Long timeout = this.cache.get(element); // Get the timeout for the element
+        return timeout != null && (timeout > System.currentTimeMillis());
+    }
+
+    /**
+     * Check if this set is empty.
+     *
+     * @return whether this set is empty
+     */
+    public boolean isEmpty() {
+        return this.cache.isEmpty();
+    }
+
+    /**
+     * Get the size of this set.
+     *
+     * @return the size
+     */
+    public int size() {
+        return this.cache.size();
+    }
+
+    /**
+     * Remove an element from this set.
+     *
+     * @param element the element
+     * @return whether the element was removed
+     */
+    public boolean remove(@NonNull T element) {
+        return this.cache.remove(element) != null;
+    }
+
+    /**
+     * Clear this set.
+     */
+    public void clear() {
+        this.cache.clear();
+    }
+
+    /**
+     * Get the elements in this set.
+     *
+     * @return the elements
+     */
+    @NonNull
+    public Set<T> getElements() {
+        return this.cache.keySet();
+    }
+
+    /**
+     * Returns an iterator over elements of type {@code T}.
+     *
+     * @return an Iterator.
+     */
+    @Override @NonNull
+    public Iterator<T> iterator() {
+        return this.cache.keySet().iterator();
+    }
+}

src/main/java/cc.fascinated/controller/ServerController.java

@@ -3,6 +3,7 @@ package cc.fascinated.controller;
 import cc.fascinated.common.ServerUtils;
 import cc.fascinated.common.Tuple;
 import cc.fascinated.model.cache.CachedMinecraftServer;
+import cc.fascinated.service.MojangService;
 import cc.fascinated.service.ServerService;
 import io.swagger.v3.oas.annotations.Parameter;
 import io.swagger.v3.oas.annotations.tags.Tag;
@@ -12,13 +13,21 @@ import org.springframework.http.MediaType;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
 
+import java.util.Map;
+
 @RestController
 @Tag(name = "Server Controller", description = "The Server Controller is used to get information about a server.")
 @RequestMapping(value = "/server/")
 public class ServerController {
 
+    private final ServerService serverService;
+    private final MojangService mojangService;
+
     @Autowired
-    private ServerService serverService;
+    public ServerController(ServerService serverService, MojangService mojangService) {
+        this.serverService = serverService;
+        this.mojangService = mojangService;
+    }
 
     @ResponseBody
     @GetMapping(value = "/{platform}/{hostnameAndPort}", produces = MediaType.APPLICATION_JSON_VALUE)
@@ -44,4 +53,13 @@ public class ServerController {
                 .header(HttpHeaders.CONTENT_DISPOSITION, dispositionHeader.formatted(ServerUtils.getAddress(hostname, port)))
                 .body(serverService.getServerFavicon(hostname, port));
     }
+
+    @ResponseBody
+    @GetMapping(value = "/blocked/{hostname}", produces = MediaType.APPLICATION_JSON_VALUE)
+    public ResponseEntity<?> getServerBlockedStatus(
+            @Parameter(description = "The hostname of the server", example = "play.hypixel.net") @PathVariable String hostname) {
+        return ResponseEntity.ok(Map.of(
+                "banned", mojangService.isServerBlocked(hostname)
+        ));
+    }
 }

src/main/java/cc.fascinated/model/mojang/JavaServerStatusToken.java

@@ -24,7 +24,7 @@ public final class JavaServerStatusToken {
     /**
      * The motd of the server.
      */
-    private final String description;
+    private final Object description;
 
     /**
      * The favicon of the server.

src/main/java/cc.fascinated/model/server/JavaMinecraftServer.java

@@ -1,11 +1,18 @@
 package cc.fascinated.model.server;
 
+import cc.fascinated.Main;
 import cc.fascinated.common.JavaMinecraftVersion;
+import cc.fascinated.common.ServerUtils;
 import cc.fascinated.config.Config;
+import cc.fascinated.model.mojang.JavaServerStatusToken;
 import lombok.AllArgsConstructor;
 import lombok.Getter;
 import lombok.NonNull;
 import lombok.Setter;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.chat.ComponentSerializer;
+
+import java.awt.*;
 
 /**
  * @author Braydon
@@ -28,6 +35,11 @@ public final class JavaMinecraftServer extends MinecraftServer {
      */
     private Favicon favicon;
 
+    /**
+     * The mojang banned status of the server.
+     */
+    private boolean mojangBanned;
+
     public JavaMinecraftServer(String hostname, String ip, int port, MOTD motd, @NonNull Version version, Players players, Favicon favicon) {
         super(hostname, ip, port, motd);
         this.version = version;
@@ -35,6 +47,32 @@ public final class JavaMinecraftServer extends MinecraftServer {
         this.favicon = favicon;
     }
 
+    /**
+     * Create a new Java Minecraft server.
+     *
+     * @param hostname the hostname of the server
+     * @param ip the IP address of the server
+     * @param port the port of the server
+     * @param token the status token
+     * @return the Java Minecraft server
+     */
+    @NonNull
+    public static JavaMinecraftServer create(@NonNull String hostname, String ip, int port, @NonNull JavaServerStatusToken token) {
+        String motdString = token.getDescription() instanceof String ? (String) token.getDescription() : null;
+        if (motdString == null) { // Not a string motd, convert from Json
+            motdString = new TextComponent(ComponentSerializer.parse(Main.GSON.toJson(token.getDescription()))).toLegacyText();
+        }
+        return new JavaMinecraftServer(
+                hostname,
+                ip,
+                port,
+                MinecraftServer.MOTD.create(motdString),
+                token.getVersion().detailedCopy(),
+                token.getPlayers(),
+                JavaMinecraftServer.Favicon.create(token.getFavicon(), ServerUtils.getAddress(hostname, port))
+        );
+    }
+
     @AllArgsConstructor @Getter
     public static class Version {
         /**

src/main/java/cc.fascinated/service/MojangAPIService.java

@@ -1,40 +0,0 @@
-package cc.fascinated.service;
-
-import cc.fascinated.common.WebRequest;
-import cc.fascinated.model.mojang.MojangProfile;
-import cc.fascinated.model.mojang.MojangUsernameToUuid;
-import lombok.extern.log4j.Log4j2;
-import org.springframework.beans.factory.annotation.Value;
-import org.springframework.stereotype.Service;
-
-@Service @Log4j2
-public class MojangAPIService {
-
-    @Value("${mojang.session-server}")
-    private String mojangSessionServerUrl;
-
-    @Value("${mojang.api}")
-    private String mojangApiUrl;
-
-    /**
-     * Gets the Session Server profile of the
-     * player with the given UUID.
-     *
-     * @param id the uuid or name of the player
-     * @return the profile
-     */
-    public MojangProfile getProfile(String id) {
-        return WebRequest.getAsEntity(mojangSessionServerUrl + "/session/minecraft/profile/" + id, MojangProfile.class);
-    }
-
-    /**
-     * Gets the UUID of the player using
-     * the name of the player.
-     *
-     * @param id the name of the player
-     * @return the profile
-     */
-    public MojangUsernameToUuid getUuidFromUsername(String id) {
-        return WebRequest.getAsEntity(mojangApiUrl + "/users/profiles/minecraft/" + id, MojangUsernameToUuid.class);
-    }
-}

src/main/java/cc.fascinated/service/MojangService.java

@@ -0,0 +1,166 @@
+package cc.fascinated.service;
+
+import cc.fascinated.common.ExpiringSet;
+import cc.fascinated.common.WebRequest;
+import cc.fascinated.model.mojang.MojangProfile;
+import cc.fascinated.model.mojang.MojangUsernameToUuid;
+import com.google.common.base.Joiner;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Lists;
+import com.google.common.hash.Hashing;
+import io.micrometer.common.lang.NonNull;
+import lombok.SneakyThrows;
+import lombok.extern.log4j.Log4j2;
+import net.jodah.expiringmap.ExpirationPolicy;
+import org.springframework.beans.factory.annotation.Value;
+import org.springframework.stereotype.Service;
+
+import java.io.InputStream;
+import java.net.URL;
+import java.nio.charset.StandardCharsets;
+import java.util.*;
+import java.util.concurrent.TimeUnit;
+
+@Service @Log4j2
+public class MojangService {
+
+    private static final String SESSION_SERVER_ENDPOINT = "https://sessionserver.mojang.com";
+    private static final String API_ENDPOINT = "https://api.mojang.com";
+    private static final String FETCH_BLOCKED_SERVERS = SESSION_SERVER_ENDPOINT + "/blockedservers";
+    private static final Splitter DOT_SPLITTER = Splitter.on('.');
+    private static final Joiner DOT_JOINER = Joiner.on('.');
+
+    /**
+     * A list of banned server hashes provided by Mojang.
+     * <p>
+     * This is periodically fetched from Mojang, see
+     * {@link #fetchBlockedServers()} for more info.
+     * </p>
+     *
+     * @see <a href="https://wiki.vg/Mojang_API#Blocked_Servers">Mojang API</a>
+     */
+    private List<String> bannedServerHashes;
+
+    /**
+     * A cache of blocked server hostnames.
+     *
+     * @see #isServerHostnameBlocked(String) for more
+     */
+    private final ExpiringSet<String> blockedServersCache = new ExpiringSet<>(ExpirationPolicy.CREATED, 10L, TimeUnit.MINUTES);
+
+    public MojangService() {
+        new Timer().scheduleAtFixedRate(new TimerTask() {
+            @Override
+            public void run() {
+                fetchBlockedServers();
+            }
+        }, 0L, 60L * 15L * 1000L);
+    }
+
+    /**
+     * Fetch a list of blocked servers from Mojang.
+     */
+    @SneakyThrows
+    private void fetchBlockedServers() {
+        try (
+                InputStream inputStream = new URL(FETCH_BLOCKED_SERVERS).openStream();
+                Scanner scanner = new Scanner(inputStream, StandardCharsets.UTF_8).useDelimiter("\n");
+        ) {
+            List<String> hashes = new ArrayList<>();
+            while (scanner.hasNext()) {
+                hashes.add(scanner.next());
+            }
+            bannedServerHashes = Collections.synchronizedList(hashes);
+            log.info("Fetched {} banned server hashes", bannedServerHashes.size());
+        }
+    }
+
+    /**
+     * Check if the server with the
+     * given hostname is blocked by Mojang.
+     *
+     * @param hostname the server hostname to check
+     * @return whether the hostname is blocked
+     */
+    public boolean isServerBlocked(@NonNull String hostname) {
+        // Remove trailing dots
+        while (hostname.charAt(hostname.length() - 1) == '.') {
+            hostname = hostname.substring(0, hostname.length() - 1);
+        }
+        // Is the hostname banned?
+        if (isServerHostnameBlocked(hostname)) {
+            return true;
+        }
+        List<String> splitDots = Lists.newArrayList(DOT_SPLITTER.split(hostname)); // Split the hostname by dots
+        boolean isIp = splitDots.size() == 4; // Is it an IP address?
+        if (isIp) {
+            for (String element : splitDots) {
+                try {
+                    int part = Integer.parseInt(element);
+                    if (part >= 0 && part <= 255) { // Ensure the part is within the valid range
+                        continue;
+                    }
+                } catch (NumberFormatException ignored) {
+                    // Safely ignore, not a number
+                }
+                isIp = false;
+                break;
+            }
+        }
+        // Check if the hostname is blocked
+        if (!isIp && isServerHostnameBlocked("*." + hostname)) {
+            return true;
+        }
+        // Additional checks for the hostname
+        while (splitDots.size() > 1) {
+            splitDots.remove(isIp ? splitDots.size() - 1 : 0);
+            String starredPart = isIp ? DOT_JOINER.join(splitDots) + ".*" : "*." + DOT_JOINER.join(splitDots);
+            if (isServerHostnameBlocked(starredPart)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Check if the hash for the given
+     * hostname is in the blocked server list.
+     *
+     * @param hostname the hostname to check
+     * @return whether the hostname is blocked
+     */
+    private boolean isServerHostnameBlocked(@NonNull String hostname) {
+        // Check the cache first for the hostname
+        if (blockedServersCache.contains(hostname)) {
+            return true;
+        }
+        String hashed = Hashing.sha1().hashBytes(hostname.toLowerCase().getBytes(StandardCharsets.ISO_8859_1)).toString();
+        boolean blocked = bannedServerHashes.contains(hashed); // Is the hostname blocked?
+        if (blocked) { // Cache the blocked hostname
+            blockedServersCache.add(hostname);
+        }
+        return blocked;
+    }
+
+    /**
+     * Gets the Session Server profile of the
+     * player with the given UUID.
+     *
+     * @param id the uuid or name of the player
+     * @return the profile
+     */
+    public MojangProfile getProfile(String id) {
+        return WebRequest.getAsEntity(SESSION_SERVER_ENDPOINT + "/session/minecraft/profile/" + id, MojangProfile.class);
+    }
+
+    /**
+     * Gets the UUID of the player using
+     * the name of the player.
+     *
+     * @param id the name of the player
+     * @return the profile
+     */
+    public MojangUsernameToUuid getUuidFromUsername(String id) {
+        return WebRequest.getAsEntity(API_ENDPOINT + "/users/profiles/minecraft/" + id, MojangUsernameToUuid.class);
+    }
+}

src/main/java/cc.fascinated/service/PlayerService.java

@@ -24,12 +24,12 @@ import java.util.UUID;
 @Service @Log4j2
 public class PlayerService {
 
-    private final MojangAPIService mojangAPIService;
+    private final MojangService mojangAPIService;
     private final PlayerCacheRepository playerCacheRepository;
     private final PlayerNameCacheRepository playerNameCacheRepository;
 
     @Autowired
-    public PlayerService(MojangAPIService mojangAPIService, PlayerCacheRepository playerCacheRepository, PlayerNameCacheRepository playerNameCacheRepository) {
+    public PlayerService(MojangService mojangAPIService, PlayerCacheRepository playerCacheRepository, PlayerNameCacheRepository playerNameCacheRepository) {
         this.mojangAPIService = mojangAPIService;
         this.playerCacheRepository = playerCacheRepository;
         this.playerNameCacheRepository = playerNameCacheRepository;

src/main/java/cc.fascinated/service/ServerService.java

@@ -20,10 +20,12 @@ import java.util.Optional;
 public class ServerService {
     private static final String DEFAULT_SERVER_ICON = "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";
 
+    private final MojangService mojangService;
     private final MinecraftServerCacheRepository serverCacheRepository;
 
     @Autowired
-    public ServerService(MinecraftServerCacheRepository serverCacheRepository) {
+    public ServerService(MojangService mojangService, MinecraftServerCacheRepository serverCacheRepository) {
+        this.mojangService = mojangService;
         this.serverCacheRepository = serverCacheRepository;
     }
 
@@ -61,6 +63,12 @@ public class ServerService {
                 platform.getPinger().ping(hostname, port),
                 System.currentTimeMillis()
         );
+
+        if (platform == MinecraftServer.Platform.JAVA) { // Check if the server is blocked by Mojang
+            JavaMinecraftServer javaServer = (JavaMinecraftServer) server.getServer();
+            javaServer.setMojangBanned(mojangService.isServerBlocked(hostname));
+        }
+
         log.info("Found server: {}:{}", hostname, port);
         serverCacheRepository.save(server);
         server.setCached(-1); // Indicate that the server is not cached

src/main/java/cc.fascinated/service/pinger/impl/JavaMinecraftServerPinger.java

@@ -51,15 +51,7 @@ public final class JavaMinecraftServerPinger implements MinecraftServerPinger<Ja
                 JavaPacketStatusInStart packetStatusInStart = new JavaPacketStatusInStart();
                 packetStatusInStart.process(inputStream, outputStream);
                 JavaServerStatusToken token = Main.GSON.fromJson(packetStatusInStart.getResponse(), JavaServerStatusToken.class);
-                return new JavaMinecraftServer(
+                return JavaMinecraftServer.create(hostname, ip, port, token);
-                        hostname,
-                        ip,
-                        port,
-                        MinecraftServer.MOTD.create(token.getDescription()),
-                        token.getVersion().detailedCopy(),
-                        token.getPlayers(),
-                        JavaMinecraftServer.Favicon.create(token.getFavicon(), ServerUtils.getAddress(hostname, port))
-                );
             }
         } catch (IOException ex) {
             if (ex instanceof UnknownHostException) {

src/main/resources/application.yml

@@ -18,7 +18,3 @@ spring:
       auth: "" # Leave blank for no auth
 
 public-url: http://localhost:80
-
-mojang:
-  session-server: https://sessionserver.mojang.com
-  api: https://api.mojang.com

target/classes/application.yml

@@ -18,7 +18,3 @@ spring:
       auth: "" # Leave blank for no auth
 
 public-url: http://localhost:80
-
-mojang:
-  session-server: https://sessionserver.mojang.com
-  api: https://api.mojang.com