updater 1/?

DOMAINS-FIREWALL.md

@@ -1,9 +1,11 @@
 If you're using a firewall, you must allow the following hosts:
-- core functionality:
-  * rw-api.m724.eu
+- updater:
+  * git.724.rocks
 - weather:
   * api.openweathermap.org
 - thunder:
   * ws1.blitzortung.org
   * ws7.blitzortung.org
   * ws8.blitzortung.org
+  
+Subject to change!

pom.xml

@@ -59,7 +59,7 @@
               				<artifactSet>
                 				<includes>
                   					<include>eu.m724:wtapi</include>
-                  					<include>org.java-websocket:Java-WebSocket</include>
+                  					<!-- <include>org.java-websocket:Java-WebSocket</include> -->
                 				</includes>
               				</artifactSet>
               				<filters>

src/main/java/eu/m724/realweather/RealWeatherPlugin.java

@@ -17,11 +17,12 @@ import eu.m724.realweather.commands.LocalTimeCommand;
 import eu.m724.realweather.mapper.Mapper;
 import eu.m724.realweather.mapper.MapperConfig;
 import eu.m724.realweather.object.UserException;
-import eu.m724.realweather.sign.SignatureValidator;
 import eu.m724.realweather.thunder.ThunderConfig;
 import eu.m724.realweather.thunder.ThunderMaster;
 import eu.m724.realweather.time.TimeConfig;
 import eu.m724.realweather.time.TimeMaster;
+import eu.m724.realweather.updater.SignatureValidator;
+import eu.m724.realweather.updater.Updater;
 import eu.m724.realweather.weather.WeatherConfig;
 import eu.m724.realweather.weather.WeatherMaster;
 import eu.m724.wtapi.provider.exception.ProviderException;
@@ -136,6 +137,8 @@ public class RealWeatherPlugin extends JavaPlugin {
 		if (GlobalConstants.timeConfig.enabled)
 			getCommand("localtime").setExecutor(new LocalTimeCommand());
 		
+		new Updater().init();
+			
 		DebugLogger.info("ended loading", 1);
 	}
 	

src/main/java/eu/m724/realweather/updater/MetadataRetriever.java

@@ -0,0 +1,62 @@
+package eu.m724.realweather.updater;
+
+import java.net.ProxySelector;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+import java.net.http.HttpClient.Redirect;
+import java.net.http.HttpResponse.BodyHandlers;
+import java.util.concurrent.CompletableFuture;
+
+import org.bukkit.plugin.Plugin;
+
+import com.google.gson.Gson;
+
+public class MetadataRetriever {
+	private String version;
+	
+	private CompletableFuture<VersionMetadata> currentMetadataCached = null;
+	
+	public MetadataRetriever(Plugin plugin) {
+		this.version = plugin.getDescription().getVersion();
+	}
+	
+	private CompletableFuture<VersionMetadata> getMetadataFromUrl(String url) {
+		HttpRequest request = HttpRequest.newBuilder()
+				.uri(URI.create(url))
+				.header("User-Agent", "rwu/1")
+				.build();
+		
+		CompletableFuture<HttpResponse<String>> responseFuture =
+				HttpClient.newBuilder()
+				.followRedirects(Redirect.NORMAL)
+				.proxy(ProxySelector.getDefault()).build().
+				sendAsync(request, BodyHandlers.ofString());
+		
+		CompletableFuture<VersionMetadata> metadataFuture =
+				responseFuture.thenApply(response -> {
+					if (response.statusCode() != 200)
+						return null;
+					
+					VersionMetadata versionMetadata = new Gson().fromJson(response.body(), VersionMetadata.class);
+					return versionMetadata;
+				});
+		
+		return metadataFuture;
+	}
+	
+	public CompletableFuture<VersionMetadata> getLatestVersionMetadata() {
+		return getMetadataFromUrl("https://git.724.rocks/Minecon724/realweather-metadata/raw/branch/master/latest/latest-v1.json");
+	}
+	
+	public CompletableFuture<VersionMetadata> getCurrentVersionMetadata() {
+		if (currentMetadataCached != null)
+			currentMetadataCached = getVersionMetadata(version);
+		return currentMetadataCached;
+	}
+	
+	public CompletableFuture<VersionMetadata> getVersionMetadata(String version) {
+		return getMetadataFromUrl("https://git.724.rocks/Minecon724/realweather-metadata/raw/branch/master/releases/" + version + "/meta-v1.json");
+	}
+}

src/main/java/eu/m724/realweather/updater/SignatureValidator.java

@@ -1,4 +1,4 @@
-package eu.m724.realweather.sign;
+package eu.m724.realweather.updater;
 
 import java.security.KeyFactory;
 import java.security.NoSuchAlgorithmException;

src/main/java/eu/m724/realweather/updater/Updater.java

@@ -0,0 +1,91 @@
+package eu.m724.realweather.updater;
+
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.concurrent.CompletableFuture;
+
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerJoinEvent;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import eu.m724.realweather.DebugLogger;
+import eu.m724.realweather.GlobalConstants;
+import net.md_5.bungee.api.ChatColor;
+import net.md_5.bungee.api.chat.BaseComponent;
+import net.md_5.bungee.api.chat.ComponentBuilder;
+
+public class Updater extends BukkitRunnable implements Listener {
+	private Plugin plugin = GlobalConstants.getPlugin();
+	private MetadataRetriever metadataRetriever = new MetadataRetriever(plugin);
+	
+	private VersionMetadata availableUpdate = null;
+	
+	private BaseComponent updateMessage = null;
+	private BaseComponent updateActionMessage =
+			new ComponentBuilder("To update: ").color(ChatColor.YELLOW)
+			.append("/rwadmin update").color(ChatColor.AQUA)
+			.build();
+	
+	public void init() {
+		this.runTaskTimerAsynchronously(plugin, 0, 216000); // 3h
+		plugin.getServer().getPluginManager().registerEvents(this, plugin);
+	}
+	
+	public boolean installUpdate() {
+		if (availableUpdate == null)
+			return false;
+		
+		// TODO
+		return true;
+	}
+	
+	@EventHandler
+	public void onPlayerJoin(PlayerJoinEvent event) {
+		Player player = event.getPlayer();
+		if (!player.hasPermission("realweather.update.notify")) return;
+		
+		if (updateMessage != null) { // TODO make changelog somewhere
+			player.spigot().sendMessage(updateMessage);
+			if (player.hasPermission("realweather.admin"))
+				player.spigot().sendMessage(updateActionMessage);
+		}
+	}
+
+	@Override
+	public void run() {
+		DebugLogger.info("Checking for update...", 2);
+		CompletableFuture<VersionMetadata> currentMetadataFuture =
+				metadataRetriever.getCurrentVersionMetadata();
+
+		CompletableFuture<VersionMetadata> latestMetadataFuture =
+				metadataRetriever.getLatestVersionMetadata();
+		
+		VersionMetadata currentMetadata = currentMetadataFuture.join();
+		VersionMetadata latestMetadata = latestMetadataFuture.join();
+		
+		DebugLogger.info("Current version: %s (%d)", 2, currentMetadata.label, currentMetadata.id);
+		DebugLogger.info("Latest version: %s (%d)", 2, latestMetadata.label, latestMetadata.id);
+		
+		if (currentMetadata.id >= latestMetadata.id) return;
+
+		availableUpdate = latestMetadata;
+		
+		String formattedDate = new SimpleDateFormat("dd.MM").format(new Date(latestMetadata.timestamp));
+		
+		updateMessage = new ComponentBuilder("An update is available!\n")
+				.color(ChatColor.YELLOW)
+				.append("RealWeather ").color(ChatColor.GOLD)
+				.append(latestMetadata.label).color(ChatColor.AQUA).bold(true)
+				.append(" released ").color(ChatColor.GOLD)
+				.append(formattedDate).color(ChatColor.AQUA)
+				.append("\nCurrent: ").color(ChatColor.GRAY)
+				.append(currentMetadata.label).color(ChatColor.DARK_AQUA)
+				.build();
+		
+		DebugLogger.info(updateMessage.toString(), 0);
+		DebugLogger.info(updateActionMessage.toString(), 0);
+	}
+}

src/main/java/eu/m724/realweather/updater/VersionMetadata.java

@@ -0,0 +1,29 @@
+package eu.m724.realweather.updater;
+
+public class VersionMetadata {
+	/**
+	 * metadata file version
+	 */
+	public final int spec = 1;
+	
+	/**
+	 * version id. increments with each version
+	 */
+	public int id;
+	
+	/**
+	 * release time of a version
+	 */
+	public long timestamp;
+	
+	/**
+	 * label aka version string
+	 * example: 1.0.0
+	 */
+	public String label;
+	
+	/**
+	 * filename of the jar file in the version directory
+	 */
+	public String file;
+}

src/main/resources/plugin.yml

@@ -4,10 +4,13 @@ version: ${project.version}
 author: Minecon724
 website: https://forum.m724.eu/topic/3/realweather-1-0
 
-api-version: 1.20
+api-version: 1.21
 load: STARTUP
 main: eu.m724.realweather.RealWeatherPlugin
 
+libraries:
+- org.java-websocket:Java-WebSocket:1.5.6
+
 commands:
   rwadmin:
     description: RealWeather admin command