add mojang api status endpoint
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@ -16,7 +16,6 @@ import java.util.Objects;
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@Log4j2
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@SpringBootApplication
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public class Main {
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public static final Gson GSON = new GsonBuilder()
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.setDateFormat("MM-dd-yyyy HH:mm:ss")
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.create();
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22
src/main/java/cc/fascinated/common/EndpointStatus.java
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22
src/main/java/cc/fascinated/common/EndpointStatus.java
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@ -0,0 +1,22 @@
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package cc.fascinated.common;
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import lombok.AllArgsConstructor;
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import lombok.Getter;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.HttpStatusCode;
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import java.util.List;
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@AllArgsConstructor @Getter
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public class EndpointStatus {
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/**
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* The endpoint.
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*/
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private final String endpoint;
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/**
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* The statuses that indicate that the endpoint is online.
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*/
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private final List<HttpStatusCode> allowedStatuses;
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}
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@ -3,9 +3,9 @@ package cc.fascinated.common;
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import cc.fascinated.exception.impl.RateLimitException;
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import lombok.experimental.UtilityClass;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.HttpStatusCode;
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import org.springframework.http.ResponseEntity;
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import org.springframework.http.client.HttpComponentsClientHttpRequestFactory;
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import org.springframework.web.client.HttpClientErrorException;
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import org.springframework.web.client.RestClient;
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@UtilityClass
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@ -14,9 +14,15 @@ public class WebRequest {
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/**
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* The web client.
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*/
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private static final RestClient CLIENT = RestClient.builder()
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.requestFactory(new HttpComponentsClientHttpRequestFactory())
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private static final RestClient CLIENT;
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static {
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HttpComponentsClientHttpRequestFactory requestFactory = new HttpComponentsClientHttpRequestFactory();
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requestFactory.setConnectTimeout(5000); // 5 seconds
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CLIENT = RestClient.builder()
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.requestFactory(requestFactory)
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.build();
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}
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/**
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* Gets a response from the given URL.
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@ -26,7 +32,6 @@ public class WebRequest {
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* @param <T> the type of the response
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*/
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public static <T> T getAsEntity(String url, Class<T> clazz) throws RateLimitException {
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try {
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ResponseEntity<T> profile = CLIENT.get()
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.uri(url)
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.retrieve()
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@ -39,8 +44,19 @@ public class WebRequest {
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throw new RateLimitException("Rate limit reached");
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}
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return profile.getBody();
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} catch (HttpClientErrorException ex) {
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return null;
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}
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/**
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* Gets a response from the given URL.
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*
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* @param url the url
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* @return the response
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*/
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public static ResponseEntity<?> getAndIgnoreErrors(String url) {
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return CLIENT.get()
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.uri(url)
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.retrieve()
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.onStatus(HttpStatusCode::isError, (request, response) -> {}) // Don't throw exceptions on error
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.toEntity(String.class);
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}
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}
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@ -19,6 +19,7 @@ public class HomeController {
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public String home(Model model) {
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model.addAttribute("player_example_url", Config.INSTANCE.getWebPublicUrl() + "/player/" + exampleUuid);
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model.addAttribute("java_server_example_url", Config.INSTANCE.getWebPublicUrl() + "/server/java/" + exampleServer);
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model.addAttribute("mojang_endpoint_status_url", Config.INSTANCE.getWebPublicUrl() + "/mojang/status");
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model.addAttribute("swagger_url", Config.INSTANCE.getWebPublicUrl() + "/swagger-ui.html");
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return "index";
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}
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src/main/java/cc/fascinated/controller/MojangController.java
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src/main/java/cc/fascinated/controller/MojangController.java
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@ -0,0 +1,23 @@
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package cc.fascinated.controller;
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import cc.fascinated.model.cache.CachedEndpointStatus;
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import cc.fascinated.service.MojangService;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.MediaType;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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@Tag(name = "Mojang Controller", description = "The Mojang Controller is used to get information about the Mojang APIs.")
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@RequestMapping(value = "/mojang/", produces = MediaType.APPLICATION_JSON_VALUE)
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public class MojangController {
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@Autowired
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private MojangService mojangService;
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@RequestMapping(value = "/status")
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public CachedEndpointStatus getStatus() {
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return mojangService.getMojangApiStatus();
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}
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}
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@ -0,0 +1,12 @@
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package cc.fascinated.exception.impl;
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import org.springframework.http.HttpStatus;
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import org.springframework.web.bind.annotation.ResponseStatus;
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@ResponseStatus(HttpStatus.INTERNAL_SERVER_ERROR)
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public class InternalServerErrorException extends RuntimeException {
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public InternalServerErrorException(String message) {
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super(message);
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}
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}
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src/main/java/cc/fascinated/model/cache/CachedEndpointStatus.java
vendored
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src/main/java/cc/fascinated/model/cache/CachedEndpointStatus.java
vendored
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@ -0,0 +1,31 @@
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package cc.fascinated.model.cache;
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import com.fasterxml.jackson.annotation.JsonIgnore;
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import lombok.*;
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import org.springframework.data.annotation.Id;
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import org.springframework.data.redis.core.RedisHash;
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import java.io.Serializable;
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import java.util.Map;
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@AllArgsConstructor @Setter @Getter @ToString
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@RedisHash(value = "mojangEndpointStatus", timeToLive = 60L) // 1 minute (in seconds)
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public final class CachedEndpointStatus implements Serializable {
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/**
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* The id for this endpoint cache.
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*/
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@Id @NonNull @JsonIgnore
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private final String id;
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/**
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* The list of endpoints and their status.
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*/
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private final Map<String, Boolean> endpoints;
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/**
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* The unix timestamp of when this
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* server was cached, -1 if not cached.
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*/
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private long cached;
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}
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@ -0,0 +1,11 @@
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package cc.fascinated.repository;
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import cc.fascinated.model.cache.CachedEndpointStatus;
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import org.springframework.data.repository.CrudRepository;
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/**
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* A cache repository for the Mojang endpoint status.
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*
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* @author Braydon
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*/
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public interface EndpointStatusRepository extends CrudRepository<CachedEndpointStatus, String> { }
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@ -1,17 +1,25 @@
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package cc.fascinated.service;
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import cc.fascinated.common.EndpointStatus;
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import cc.fascinated.common.ExpiringSet;
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import cc.fascinated.common.WebRequest;
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import cc.fascinated.config.Config;
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import cc.fascinated.model.cache.CachedEndpointStatus;
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import cc.fascinated.model.mojang.MojangProfile;
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import cc.fascinated.model.mojang.MojangUsernameToUuid;
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import cc.fascinated.repository.EndpointStatusRepository;
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import com.google.common.base.Joiner;
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import com.google.common.base.Splitter;
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import com.google.common.collect.Lists;
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import com.google.common.hash.Hashing;
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import io.micrometer.common.lang.NonNull;
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import lombok.Getter;
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import lombok.SneakyThrows;
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import lombok.extern.log4j.Log4j2;
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import net.jodah.expiringmap.ExpirationPolicy;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.http.HttpStatus;
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import org.springframework.http.ResponseEntity;
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import org.springframework.stereotype.Service;
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import java.io.InputStream;
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@ -20,16 +28,40 @@ import java.nio.charset.StandardCharsets;
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import java.util.*;
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import java.util.concurrent.TimeUnit;
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@Service @Log4j2
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@Service @Log4j2 @Getter
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public class MojangService {
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/**
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* The splitter and joiner for dots.
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*/
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private static final Splitter DOT_SPLITTER = Splitter.on('.');
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private static final Joiner DOT_JOINER = Joiner.on('.');
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/**
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* The Mojang API endpoints.
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*/
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private static final String SESSION_SERVER_ENDPOINT = "https://sessionserver.mojang.com";
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private static final String API_ENDPOINT = "https://api.mojang.com";
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private static final String FETCH_BLOCKED_SERVERS = SESSION_SERVER_ENDPOINT + "/blockedservers";
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private static final Splitter DOT_SPLITTER = Splitter.on('.');
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private static final Joiner DOT_JOINER = Joiner.on('.');
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/**
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* The interval to fetch the blocked servers from Mojang.
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*/
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private static final long FETCH_BLOCKED_SERVERS_INTERVAL = TimeUnit.HOURS.toMillis(1L);
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/**
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* Information about the Mojang API endpoints.
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*/
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private static final String MOJANG_ENDPOINT_STATUS_KEY = "mojang";
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private static final List<EndpointStatus> MOJANG_ENDPOINTS = List.of(
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new EndpointStatus("https://textures.minecraft.net", List.of(HttpStatus.BAD_REQUEST)),
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new EndpointStatus(API_ENDPOINT, List.of(HttpStatus.OK)),
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new EndpointStatus(SESSION_SERVER_ENDPOINT, List.of(HttpStatus.FORBIDDEN))
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);
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@Autowired
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private EndpointStatusRepository mojangEndpointStatusRepository;
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/**
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* A list of banned server hashes provided by Mojang.
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* <p>
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@ -62,6 +94,7 @@ public class MojangService {
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*/
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@SneakyThrows
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private void fetchBlockedServers() {
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log.info("Fetching blocked servers from Mojang");
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try (
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InputStream inputStream = new URL(FETCH_BLOCKED_SERVERS).openStream();
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Scanner scanner = new Scanner(inputStream, StandardCharsets.UTF_8).useDelimiter("\n");
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@ -142,6 +175,41 @@ public class MojangService {
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return blocked;
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}
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/**
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* Gets the status of the Mojang API.
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*
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* @return the status of the Mojang API
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*/
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public CachedEndpointStatus getMojangApiStatus() {
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log.info("Getting Mojang API status");
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Optional<CachedEndpointStatus> endpointStatus = mojangEndpointStatusRepository.findById(MOJANG_ENDPOINT_STATUS_KEY);
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if (endpointStatus.isPresent() && Config.INSTANCE.isProduction()) {
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log.info("Got cached Mojang API status");
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return endpointStatus.get();
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}
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// Fetch the status of the Mojang APIs
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Map<String, Boolean> endpoints = new HashMap<>();
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for (EndpointStatus endpoint : MOJANG_ENDPOINTS) {
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boolean online = false;
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ResponseEntity<?> response = WebRequest.getAndIgnoreErrors(endpoint.getEndpoint());
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if (endpoint.getAllowedStatuses().contains(response.getStatusCode())) {
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online = true;
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}
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endpoints.put(endpoint.getEndpoint(), online);
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}
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log.info("Fetched Mojang API status for {} endpoints", endpoints.size());
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CachedEndpointStatus status = new CachedEndpointStatus(
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MOJANG_ENDPOINT_STATUS_KEY,
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endpoints,
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System.currentTimeMillis()
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);
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mojangEndpointStatusRepository.save(status);
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status.setCached(-1L); // Indicate that the status is not cached
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return status;
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}
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/**
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* Gets the Session Server profile of the
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* player with the given UUID.
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<div class="flex flex-col mt-3">
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<p>Player Data: <a class="text-blue-600" target=”_blank” th:href="${player_example_url}" th:text="${player_example_url}">???</a></p>
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<p>Server Data: <a class="text-blue-600" target=”_blank” th:href="${java_server_example_url}" th:text="${java_server_example_url}">???</a></p>
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<p>Mojang Endpoint Status: <a class="text-blue-600" target=”_blank” th:href="${mojang_endpoint_status_url}" th:text="${mojang_endpoint_status_url}">???</a></p>
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<p>Swagger Docs: <a class="text-blue-600" target=”_blank” th:href="${swagger_url}" th:text="${swagger_url}">???</a></p>
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</div>
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</body>
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