313 lines
11 KiB
Diff
313 lines
11 KiB
Diff
From b8dc586bee2c74592236ead18bf428fcfe4c957a Mon Sep 17 00:00:00 2001
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From: Thinkofdeath <thinkofdeath@spigotmc.org>
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Date: Mon, 28 Jul 2014 11:42:11 +0100
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Subject: [PATCH] Add an option for a global cache for any request on Mojang's
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api to handle plugins that don't use UserCache (or any cache)
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diff --git a/src/main/java/org/spigotmc/CachedMojangAPIConnection.java b/src/main/java/org/spigotmc/CachedMojangAPIConnection.java
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new file mode 100644
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index 0000000..4eed6fd
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--- /dev/null
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+++ b/src/main/java/org/spigotmc/CachedMojangAPIConnection.java
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@@ -0,0 +1,145 @@
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+package org.spigotmc;
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+
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+import com.google.common.base.Charsets;
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+import com.google.gson.JsonArray;
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+import com.google.gson.JsonElement;
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+import com.google.gson.JsonObject;
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+import com.google.gson.JsonParser;
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+import com.google.common.cache.Cache;
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+import com.google.common.cache.CacheBuilder;
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+
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+import java.io.ByteArrayInputStream;
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+import java.io.ByteArrayOutputStream;
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+import java.io.IOException;
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+import java.io.InputStream;
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+import java.io.InputStreamReader;
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+import java.io.OutputStream;
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+import java.net.HttpURLConnection;
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+import java.net.Proxy;
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+import java.net.URL;
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+import java.util.concurrent.TimeUnit;
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+
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+public class CachedMojangAPIConnection extends HttpURLConnection
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+{
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+ private final CachedStreamHandlerFactory.CachedStreamHandler cachedStreamHandler;
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+ private final Proxy proxy;
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+ private final ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
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+ private ByteArrayInputStream inputStream;
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+ private InputStream errorStream;
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+ private boolean outClosed = false;
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+
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+ private static final Cache<String, String> cache = CacheBuilder.newBuilder()
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+ .maximumSize( 10000 )
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+ .expireAfterAccess( 1, TimeUnit.HOURS )
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+ .build();
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+
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+ public CachedMojangAPIConnection(CachedStreamHandlerFactory.CachedStreamHandler cachedStreamHandler, URL url, Proxy proxy)
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+ {
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+ super( url );
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+ this.cachedStreamHandler = cachedStreamHandler;
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+ this.proxy = proxy;
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+ }
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+
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+ @Override
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+ public void disconnect()
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+ {
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+
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+ }
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+
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+ @Override
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+ public boolean usingProxy()
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+ {
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+ return proxy != null;
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+ }
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+
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+ @Override
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+ public void connect() throws IOException
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+ {
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+
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+ }
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+
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+ @Override
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+ public InputStream getInputStream() throws IOException
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+ {
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+ if ( inputStream == null )
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+ {
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+ outClosed = true;
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+ JsonArray users = new JsonParser().parse( new String( outputStream.toByteArray(), Charsets.UTF_8 ) ).getAsJsonArray();
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+ StringBuilder reply = new StringBuilder( "[" );
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+ StringBuilder missingUsers = new StringBuilder( "[" );
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+ for ( JsonElement user : users )
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+ {
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+ String username = user.getAsString().toLowerCase();
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+ String info = cache.getIfPresent( username );
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+ if ( info != null )
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+ {
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+ reply.append( info ).append( "," );
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+ } else
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+ {
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+ missingUsers
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+ .append( "\"" )
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+ .append( username )
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+ .append( "\"" )
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+ .append( "," );
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+ }
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+ }
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+ if ( missingUsers.length() > 1 )
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+ {
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+ missingUsers.deleteCharAt( missingUsers.length() - 1 ).append( "]" );
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+ }
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+ if ( missingUsers.length() > 2 )
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+ {
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+ HttpURLConnection connection;
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+ if ( proxy == null )
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+ {
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+ connection = (HttpURLConnection) cachedStreamHandler.getDefaultConnection( url );
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+ } else
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+ {
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+ connection = (HttpURLConnection) cachedStreamHandler.getDefaultConnection( url, proxy );
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+ }
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+ connection.setRequestMethod( "POST" );
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+ connection.setRequestProperty( "Content-Type", "application/json" );
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+ connection.setDoInput( true );
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+ connection.setDoOutput( true );
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+ OutputStream out = connection.getOutputStream();
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+ out.write( missingUsers.toString().getBytes( Charsets.UTF_8 ) );
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+ out.flush();
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+ out.close();
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+ JsonArray newUsers = new JsonParser().parse( new InputStreamReader( connection.getInputStream(), Charsets.UTF_8 ) ).getAsJsonArray();
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+ for ( JsonElement user : newUsers )
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+ {
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+ JsonObject u = user.getAsJsonObject();
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+ cache.put( u.get( "name" ).getAsString(), u.toString() );
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+ reply.append( u.toString() ).append( "," );
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+ }
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+ responseCode = connection.getResponseCode();
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+ errorStream = connection.getErrorStream();
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+ } else
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+ {
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+ responseCode = HTTP_OK;
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+ }
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+ if ( reply.length() > 1 )
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+ {
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+ reply.deleteCharAt( reply.length() - 1 );
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+ }
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+ inputStream = new ByteArrayInputStream( reply.append( "]" ).toString().getBytes( Charsets.UTF_8 ) );
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+ }
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+ return inputStream;
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+ }
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+
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+ @Override
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+ public InputStream getErrorStream()
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+ {
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+ return errorStream;
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+ }
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+
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+ @Override
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+ public OutputStream getOutputStream() throws IOException
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+ {
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+ if ( outClosed )
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+ {
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+ throw new RuntimeException( "Write after send" );
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+ }
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+ return outputStream;
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+ }
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+}
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diff --git a/src/main/java/org/spigotmc/CachedStreamHandlerFactory.java b/src/main/java/org/spigotmc/CachedStreamHandlerFactory.java
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new file mode 100644
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index 0000000..b9a8736
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--- /dev/null
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+++ b/src/main/java/org/spigotmc/CachedStreamHandlerFactory.java
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@@ -0,0 +1,117 @@
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+package org.spigotmc;
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+
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+import java.io.IOException;
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+import java.lang.reflect.InvocationTargetException;
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+import java.lang.reflect.Method;
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+import java.net.Proxy;
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+import java.net.URL;
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+import java.net.URLConnection;
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+import java.net.URLStreamHandler;
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+import java.net.URLStreamHandlerFactory;
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+
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+public class CachedStreamHandlerFactory implements URLStreamHandlerFactory
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+{
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+ public static boolean isSet = false;
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+
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+ @Override
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+ public URLStreamHandler createURLStreamHandler(String protocol)
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+ {
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+ if ( protocol.equals( "http" ) || protocol.equals( "https" ) )
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+ {
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+ return new CachedStreamHandler( protocol );
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+ }
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+ return null;
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+ }
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+
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+ public class CachedStreamHandler extends URLStreamHandler
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+ {
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+ private final String protocol;
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+ private final URLStreamHandler handler;
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+ private final Method openCon;
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+ private final Method openConProxy;
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+
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+ public CachedStreamHandler(String protocol)
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+ {
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+ this.protocol = protocol;
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+ if ( protocol.equals( "http" ) )
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+ {
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+ handler = new sun.net.www.protocol.http.Handler();
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+ } else
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+ {
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+ handler = new sun.net.www.protocol.https.Handler();
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+ }
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+ try
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+ {
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+ openCon = handler.getClass().getDeclaredMethod( "openConnection", URL.class );
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+ openCon.setAccessible( true );
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+ openConProxy = handler.getClass().getDeclaredMethod( "openConnection", URL.class, Proxy.class );
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+ openConProxy.setAccessible( true );
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+ } catch ( NoSuchMethodException e )
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+ {
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+ throw new RuntimeException( e );
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+ }
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+ }
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+
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+ @Override
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+ protected URLConnection openConnection(URL u) throws IOException
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+ {
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+ if ( u.getHost().equals( "api.mojang.com" )
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+ || u.getPath().startsWith( "/profiles/minecraft" ) )
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+ {
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+ return cachedConnection( u );
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+ }
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+ return getDefaultConnection( u );
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+ }
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+
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+ @Override
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+ protected URLConnection openConnection(URL u, Proxy p) throws IOException
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+ {
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+ if ( u.getHost().equals( "api.mojang.com" )
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+ || u.getPath().startsWith( "/profiles/minecraft" ) )
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+ {
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+ return cachedConnection( u, p );
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+ }
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+ return getDefaultConnection( u, p );
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+ }
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+
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+ private URLConnection cachedConnection(URL u)
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+ {
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+ return cachedConnection( u, null );
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+ }
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+
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+ private URLConnection cachedConnection(URL u, Proxy p)
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+ {
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+ return new CachedMojangAPIConnection( this, u, p );
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+ }
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+
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+ public URLConnection getDefaultConnection(URL u)
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+ {
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+ try
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+ {
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+ return (URLConnection) openCon.invoke( handler, u );
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+ } catch ( IllegalAccessException e )
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+ {
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+ e.printStackTrace();
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+ } catch ( InvocationTargetException e )
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+ {
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+ e.printStackTrace();
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+ }
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+ return null;
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+ }
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+
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+ public URLConnection getDefaultConnection(URL u, Proxy p)
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+ {
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+ try
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+ {
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+ return (URLConnection) openConProxy.invoke( handler, u, p );
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+ } catch ( IllegalAccessException e )
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+ {
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+ e.printStackTrace();
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+ } catch ( InvocationTargetException e )
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+ {
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+ e.printStackTrace();
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+ }
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+ return null;
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+ }
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+ }
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+}
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diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
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index 4ecb3cd..d3abf1f 100644
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--- a/src/main/java/org/spigotmc/SpigotConfig.java
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+++ b/src/main/java/org/spigotmc/SpigotConfig.java
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@@ -6,6 +6,7 @@ import java.io.IOException;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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import java.lang.reflect.Modifier;
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+import java.net.URL;
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import java.util.Arrays;
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import java.util.HashMap;
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import java.util.HashSet;
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@@ -360,4 +361,15 @@ public class SpigotConfig
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attackDamage = getDouble( "settings.attribute.attackDamage.max", attackDamage );
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( (AttributeRanged) GenericAttributes.e ).b = attackDamage;
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}
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+
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+ private static void globalAPICache()
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+ {
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+ if ( getBoolean( "settings.global-api-cache", false ) && !CachedStreamHandlerFactory.isSet )
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+ {
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+ Bukkit.getLogger().info( "Global API cache enabled - All requests to Mojang's API will be " +
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+ "handled by Spigot" );
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+ CachedStreamHandlerFactory.isSet = true;
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+ URL.setURLStreamHandlerFactory(new CachedStreamHandlerFactory());
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+ }
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+ }
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}
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--
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2.1.0
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