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Paper/patches/api/0015-Expose-server-build-information.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Zach Brown <zach@zachbr.io>
Date: Mon, 27 May 2019 01:10:06 -0500
Subject: [PATCH] Expose server build information
Co-authored-by: Professor Bloodstone <git@bloodstone.dev>
Co-authored-by: Mark Vainomaa <mikroskeem@mikroskeem.eu>
Co-authored-by: masmc05 <masmc05@gmail.com>
Co-authored-by: Riley Park <rileysebastianpark@gmail.com>
diff --git a/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java b/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java
new file mode 100644
index 0000000000000000000000000000000000000000..023cc52a9e28e1238c7452c0f3f577f2850fd861
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/util/VersionFetcher.java
@@ -0,0 +1,47 @@
+package com.destroystokyo.paper.util;
+
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import org.bukkit.Bukkit;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+@NullMarked
+public interface VersionFetcher {
+
+ /**
+ * Amount of time to cache results for in milliseconds
+ * <p>
+ * Negative values will never cache.
+ *
+ * @return cache time
+ */
+ long getCacheTime();
+
+ /**
+ * Gets the version message to cache and show to command senders.
+ *
+ * <p>NOTE: This is run in a new thread separate from that of the command processing thread</p>
+ *
+ * @param serverVersion the current version of the server (will match {@link Bukkit#getVersion()})
+ * @return the message to show when requesting a version
+ */
+ Component getVersionMessage(String serverVersion);
+
+ @ApiStatus.Internal
+ class DummyVersionFetcher implements VersionFetcher {
+
+ @Override
+ public long getCacheTime() {
+ return -1;
+ }
+
+ @Override
+ public Component getVersionMessage(final String serverVersion) {
+ Bukkit.getLogger().warning("Version provider has not been set, cannot check for updates!");
+ Bukkit.getLogger().info("Override the default implementation of org.bukkit.UnsafeValues#getVersionFetcher()");
+ new Throwable().printStackTrace();
+ return Component.text("Unable to check for updates. No version provider set.", NamedTextColor.RED);
+ }
+ }
+}
diff --git a/src/main/java/io/papermc/paper/ServerBuildInfo.java b/src/main/java/io/papermc/paper/ServerBuildInfo.java
new file mode 100644
index 0000000000000000000000000000000000000000..652ff54e7c50412503725d628bfe72ed03059790
--- /dev/null
+++ b/src/main/java/io/papermc/paper/ServerBuildInfo.java
@@ -0,0 +1,122 @@
+package io.papermc.paper;
+
+import java.time.Instant;
+import java.util.Optional;
+import java.util.OptionalInt;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.util.Services;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Information about the current server build.
+ */
+@NullMarked
+@ApiStatus.NonExtendable
+public interface ServerBuildInfo {
+ /**
+ * The brand id for Paper.
+ */
+ Key BRAND_PAPER_ID = Key.key("papermc", "paper");
+
+ /**
+ * Gets the {@code ServerBuildInfo}.
+ *
+ * @return the {@code ServerBuildInfo}
+ */
+ static ServerBuildInfo buildInfo() {
+ //<editor-fold defaultstate="collapsed" desc="Holder">
+ final class Holder {
+ static final Optional<ServerBuildInfo> INSTANCE = Services.service(ServerBuildInfo.class);
+ }
+ //</editor-fold>
+ return Holder.INSTANCE.orElseThrow();
+ }
+
+ /**
+ * Gets the brand id of the server.
+ *
+ * @return the brand id of the server (e.g. "papermc:paper")
+ */
+ Key brandId();
+
+ /**
+ * Checks if the current server supports the specified brand.
+ *
+ * @param brandId the brand to check (e.g. "papermc:folia")
+ * @return {@code true} if the server supports the specified brand
+ */
+ @ApiStatus.Experimental
+ boolean isBrandCompatible(final Key brandId);
+
+ /**
+ * Gets the brand name of the server.
+ *
+ * @return the brand name of the server (e.g. "Paper")
+ */
+ String brandName();
+
+ /**
+ * Gets the Minecraft version id.
+ *
+ * @return the Minecraft version id (e.g. "1.20.4", "1.20.2-pre2", "23w31a")
+ */
+ String minecraftVersionId();
+
+ /**
+ * Gets the Minecraft version name.
+ *
+ * @return the Minecraft version name (e.g. "1.20.4", "1.20.2 Pre-release 2", "23w31a")
+ */
+ String minecraftVersionName();
+
+ /**
+ * Gets the build number.
+ *
+ * @return the build number
+ */
+ OptionalInt buildNumber();
+
+ /**
+ * Gets the build time.
+ *
+ * @return the build time
+ */
+ Instant buildTime();
+
+ /**
+ * Gets the git commit branch.
+ *
+ * @return the git commit branch
+ */
+ Optional<String> gitBranch();
+
+ /**
+ * Gets the git commit hash.
+ *
+ * @return the git commit hash
+ */
+ Optional<String> gitCommit();
+
+ /**
+ * Creates a string representation of the server build information.
+ *
+ * @param representation the type of representation
+ * @return a string
+ */
+ String asString(final StringRepresentation representation);
+
+ /**
+ * String representation types.
+ */
+ enum StringRepresentation {
+ /**
+ * A simple version string, in format {@code <minecraftVersionId>-<buildNumber>-<gitCommit>}.
+ */
+ VERSION_SIMPLE,
+ /**
+ * A simple version string, in format {@code <minecraftVersionId>-<buildNumber>-<gitBranch>@<gitCommit> (<buildTime>)}.
+ */
+ VERSION_FULL,
+ }
+}
diff --git a/src/main/java/io/papermc/paper/util/JarManifests.java b/src/main/java/io/papermc/paper/util/JarManifests.java
new file mode 100644
index 0000000000000000000000000000000000000000..7915a70d676b1205dcae39259f670af258a1ab9b
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/JarManifests.java
@@ -0,0 +1,38 @@
+package io.papermc.paper.util;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.net.URL;
+import java.util.Collections;
+import java.util.Map;
+import java.util.WeakHashMap;
+import java.util.jar.Manifest;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+@NullMarked
+@ApiStatus.Internal
+public final class JarManifests {
+ private JarManifests() {
+ }
+
+ private static final Map<ClassLoader, Manifest> MANIFESTS = Collections.synchronizedMap(new WeakHashMap<>());
+
+ public static @Nullable Manifest manifest(final Class<?> clazz) {
+ return MANIFESTS.computeIfAbsent(clazz.getClassLoader(), classLoader -> {
+ final String classLocation = "/" + clazz.getName().replace(".", "/") + ".class";
+ final URL resource = clazz.getResource(classLocation);
+ if (resource == null) {
+ return null;
+ }
+ final String classFilePath = resource.toString().replace("\\", "/");
+ final String archivePath = classFilePath.substring(0, classFilePath.length() - classLocation.length());
+ try (final InputStream stream = new URL(archivePath + "/META-INF/MANIFEST.MF").openStream()) {
+ return new Manifest(stream);
+ } catch (final IOException ex) {
+ return null;
+ }
+ });
+ }
+}
diff --git a/src/main/java/org/bukkit/Bukkit.java b/src/main/java/org/bukkit/Bukkit.java
index 5780003631beae773231afe3afc6b834bfe1f84d..a005d5f8879262c763d8c4fbd09b9a99810d5e8c 100644
--- a/src/main/java/org/bukkit/Bukkit.java
+++ b/src/main/java/org/bukkit/Bukkit.java
@@ -110,13 +110,26 @@ public final class Bukkit {
}
Bukkit.server = server;
- server.getLogger().info("This server is running " + getName() + " version " + getVersion() + " (Implementing API version " + getBukkitVersion() + ")");
+ // Paper start - add git information
+ server.getLogger().info(getVersionMessage());
+ }
+ /**
+ * Gets message describing the version server is running.
+ *
+ * @return message describing the version server is running
+ */
+ @NotNull
+ public static String getVersionMessage() {
+ final io.papermc.paper.ServerBuildInfo version = io.papermc.paper.ServerBuildInfo.buildInfo();
+ return "This server is running " + getName() + " version " + version.asString(io.papermc.paper.ServerBuildInfo.StringRepresentation.VERSION_FULL) + " (Implementing API version " + getBukkitVersion() + ")";
+ // Paper end
}
/**
* Gets the name of this server implementation.
*
* @return name of this server implementation
+ * @see io.papermc.paper.ServerBuildInfo#brandName()
*/
@NotNull
public static String getName() {
@@ -127,6 +140,7 @@ public final class Bukkit {
* Gets the version string of this server implementation.
*
* @return version of this server implementation
+ * @see io.papermc.paper.ServerBuildInfo
*/
@NotNull
public static String getVersion() {
@@ -143,6 +157,20 @@ public final class Bukkit {
return server.getBukkitVersion();
}
+ // Paper start - expose game version
+ /**
+ * Gets the version of game this server implements
+ *
+ * @return version of game
+ * @see io.papermc.paper.ServerBuildInfo#minecraftVersionId()
+ * @see io.papermc.paper.ServerBuildInfo#minecraftVersionName()
+ */
+ @NotNull
+ public static String getMinecraftVersion() {
+ return server.getMinecraftVersion();
+ }
+ // Paper end
+
/**
* Gets a view of all currently logged in players. This {@linkplain
* Collections#unmodifiableCollection(Collection) view} is a reused
diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
index ba28d9f3213ca4b5f15178dc637bff37a8896edc..8a07f21eeb04fb54032ce377a1478f60303e1824 100644
--- a/src/main/java/org/bukkit/Server.java
+++ b/src/main/java/org/bukkit/Server.java
@@ -120,6 +120,16 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
@NotNull
public String getBukkitVersion();
+ // Paper start - expose game version
+ /**
+ * Gets the version of game this server implements
+ *
+ * @return version of game
+ */
+ @NotNull
+ String getMinecraftVersion();
+ // Paper end
+
/**
* Gets a view of all currently logged in players. This {@linkplain
* Collections#unmodifiableCollection(Collection) view} is a reused
diff --git a/src/main/java/org/bukkit/UnsafeValues.java b/src/main/java/org/bukkit/UnsafeValues.java
index 12ef99f1c91b92a133611c5f5aeaaeebd02ce232..6e67fdb091a006d2d13bc2d93db4d55348af4c8f 100644
--- a/src/main/java/org/bukkit/UnsafeValues.java
+++ b/src/main/java/org/bukkit/UnsafeValues.java
@@ -163,5 +163,12 @@ public interface UnsafeValues {
*/
@Deprecated(forRemoval = true)
String getTimingsServerName();
+
+ /**
+ * Called once by the version command on first use, then cached.
+ */
+ default com.destroystokyo.paper.util.VersionFetcher getVersionFetcher() {
+ return new com.destroystokyo.paper.util.VersionFetcher.DummyVersionFetcher();
+ }
// Paper end
}
diff --git a/src/main/java/org/bukkit/command/defaults/VersionCommand.java b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
index 263208d3cba36cb80c9ee4e3022ef702ea113df2..e64bb57f74e6d6f78927be228825b3e0bdf41f48 100644
--- a/src/main/java/org/bukkit/command/defaults/VersionCommand.java
+++ b/src/main/java/org/bukkit/command/defaults/VersionCommand.java
@@ -25,8 +25,25 @@ import org.bukkit.plugin.Plugin;
import org.bukkit.plugin.PluginDescriptionFile;
import org.bukkit.util.StringUtil;
import org.jetbrains.annotations.NotNull;
+// Paper start - version command 2.0
+import com.destroystokyo.paper.util.VersionFetcher;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.event.ClickEvent;
+import net.kyori.adventure.text.format.TextDecoration;
+import net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
+// Paper end - version command 2.0
public class VersionCommand extends BukkitCommand {
+ private VersionFetcher versionFetcher; // Paper - version command 2.0
+ private VersionFetcher getVersionFetcher() { // lazy load because unsafe isn't available at command registration
+ if (versionFetcher == null) {
+ versionFetcher = Bukkit.getUnsafe().getVersionFetcher();
+ }
+
+ return versionFetcher;
+ }
+
public VersionCommand(@NotNull String name) {
super(name);
@@ -41,7 +58,7 @@ public class VersionCommand extends BukkitCommand {
if (!testPermission(sender)) return true;
if (args.length == 0) {
- sender.sendMessage("This server is running " + Bukkit.getName() + " version " + Bukkit.getVersion() + " (Implementing API version " + Bukkit.getBukkitVersion() + ")");
+ //sender.sendMessage("This server is running " + Bukkit.getName() + " version " + Bukkit.getVersion() + " (Implementing API version " + Bukkit.getBukkitVersion() + ")"); // Paper - moved to setVersionMessage
sendVersion(sender);
} else {
StringBuilder name = new StringBuilder();
@@ -80,8 +97,17 @@ public class VersionCommand extends BukkitCommand {
private void describeToSender(@NotNull Plugin plugin, @NotNull CommandSender sender) {
PluginDescriptionFile desc = plugin.getDescription();
- sender.sendMessage(ChatColor.GREEN + desc.getName() + ChatColor.WHITE + " version " + ChatColor.GREEN + desc.getVersion());
-
+ // Paper start - version command 2.0
+ sender.sendMessage(
+ Component.text()
+ .append(Component.text(desc.getName(), NamedTextColor.GREEN))
+ .append(Component.text(" version "))
+ .append(Component.text(desc.getVersion(), NamedTextColor.GREEN)
+ .hoverEvent(Component.text("Click to copy to clipboard", NamedTextColor.WHITE))
+ .clickEvent(ClickEvent.copyToClipboard(desc.getVersion()))
+ )
+ );
+ // Paper end - version command 2.0
if (desc.getDescription() != null) {
sender.sendMessage(desc.getDescription());
}
@@ -147,14 +173,14 @@ public class VersionCommand extends BukkitCommand {
private final ReentrantLock versionLock = new ReentrantLock();
private boolean hasVersion = false;
- private String versionMessage = null;
+ private Component versionMessage = null; // Paper
private final Set<CommandSender> versionWaiters = new HashSet<CommandSender>();
private boolean versionTaskStarted = false;
private long lastCheck = 0;
private void sendVersion(@NotNull CommandSender sender) {
if (hasVersion) {
- if (System.currentTimeMillis() - lastCheck > 21600000) {
+ if (System.currentTimeMillis() - lastCheck > getVersionFetcher().getCacheTime()) { // Paper - use version supplier
lastCheck = System.currentTimeMillis();
hasVersion = false;
} else {
@@ -169,7 +195,7 @@ public class VersionCommand extends BukkitCommand {
return;
}
versionWaiters.add(sender);
- sender.sendMessage("Checking version, please wait...");
+ sender.sendMessage(Component.text("Checking version, please wait...", NamedTextColor.WHITE, TextDecoration.ITALIC)); // Paper
if (!versionTaskStarted) {
versionTaskStarted = true;
new Thread(new Runnable() {
@@ -187,6 +213,13 @@ public class VersionCommand extends BukkitCommand {
private void obtainVersion() {
String version = Bukkit.getVersion();
+ // Paper start
+ if (version.startsWith("null")) { // running from ide?
+ setVersionMessage(Component.text("Unknown version, custom build?", NamedTextColor.YELLOW));
+ return;
+ }
+ setVersionMessage(getVersionFetcher().getVersionMessage(version));
+ /*
if (version == null) version = "Custom";
String[] parts = version.substring(0, version.indexOf(' ')).split("-");
if (parts.length == 4) {
@@ -216,11 +249,24 @@ public class VersionCommand extends BukkitCommand {
} else {
setVersionMessage("Unknown version, custom build?");
}
+ */
+ // Paper end
}
- private void setVersionMessage(@NotNull String msg) {
+ // Paper start
+ private void setVersionMessage(final @NotNull Component msg) {
lastCheck = System.currentTimeMillis();
- versionMessage = msg;
+ final Component message = Component.textOfChildren(
+ Component.text(Bukkit.getVersionMessage(), NamedTextColor.WHITE),
+ Component.newline(),
+ msg
+ );
+ this.versionMessage = Component.text()
+ .append(message)
+ .hoverEvent(Component.text("Click to copy to clipboard", NamedTextColor.WHITE))
+ .clickEvent(ClickEvent.copyToClipboard(PlainTextComponentSerializer.plainText().serialize(message)))
+ .build();
+ // Paper end
versionLock.lock();
try {
hasVersion = true;
diff --git a/src/test/java/io/papermc/paper/TestServerBuildInfo.java b/src/test/java/io/papermc/paper/TestServerBuildInfo.java
new file mode 100644
index 0000000000000000000000000000000000000000..17be27a869c1047a7a9440fb8f3717260d4abbd0
--- /dev/null
+++ b/src/test/java/io/papermc/paper/TestServerBuildInfo.java
@@ -0,0 +1,59 @@
+package io.papermc.paper;
+
+import java.time.Instant;
+import java.util.Optional;
+import java.util.OptionalInt;
+import net.kyori.adventure.key.Key;
+import org.jetbrains.annotations.NotNull;
+
+public class TestServerBuildInfo implements ServerBuildInfo {
+ @Override
+ public @NotNull Key brandId() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public boolean isBrandCompatible(final @NotNull Key brandId) {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull String brandName() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull String minecraftVersionId() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull String minecraftVersionName() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull OptionalInt buildNumber() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull Instant buildTime() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull Optional<String> gitBranch() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull Optional<String> gitCommit() {
+ throw new UnsupportedOperationException();
+ }
+
+ @Override
+ public @NotNull String asString(final @NotNull StringRepresentation representation) {
+ return "";
+ }
+}
diff --git a/src/test/resources/META-INF/services/io.papermc.paper.ServerBuildInfo b/src/test/resources/META-INF/services/io.papermc.paper.ServerBuildInfo
new file mode 100644
index 0000000000000000000000000000000000000000..64e2f8559b9c5a52e0a3229d3d12f65e9af145b3
--- /dev/null
+++ b/src/test/resources/META-INF/services/io.papermc.paper.ServerBuildInfo
@@ -0,0 +1 @@
+io.papermc.paper.TestServerBuildInfo
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