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Removed useless functionality

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This commit is contained in:
MattBDev 2020-08-24 22:19:07 -04:00
parent a9d37fc6e5
commit 8a6db57433
4 changed files with 10 additions and 211 deletions
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9
worldedit-core/src/main/java/com/sk89q/worldedit/scripting/RhinoCraftScriptEngine.java
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@ -19,10 +19,7 @@
package com.sk89q.worldedit.scripting;
import com.google.common.io.CharStreams;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.scripting.compat.BabelScriptTranspiler;
import com.sk89q.worldedit.scripting.compat.ScriptTranspiler;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ImporterTopLevel;
import org.mozilla.javascript.JavaScriptException;
@ -31,13 +28,10 @@ import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.ScriptableObject;
import org.mozilla.javascript.WrappedException;
import java.io.StringReader;
import java.util.Map;
import javax.script.ScriptException;
public class RhinoCraftScriptEngine implements CraftScriptEngine {
private static final ScriptTranspiler TRANSPILER = new BabelScriptTranspiler();
private int timeLimit;
@Override
@ -53,7 +47,6 @@ public class RhinoCraftScriptEngine implements CraftScriptEngine {
@Override
public Object evaluate(String script, String filename, Map<String, Object> args)
throws ScriptException, Throwable {
String transpiled = CharStreams.toString(TRANSPILER.transpile(new StringReader(script)));
RhinoContextFactory factory = new RhinoContextFactory(timeLimit);
Context cx = factory.enterContext();
cx.setClassShutter(new MinecraftHidingClassShutter());
@ -65,7 +58,7 @@ public class RhinoCraftScriptEngine implements CraftScriptEngine {
Context.javaToJS(entry.getValue(), scope));
}
try {
return cx.evaluateString(scope, transpiled, filename, 1, null);
return cx.evaluateString(scope, script, filename, 1, null);
} catch (Error e) {
throw new ScriptException(e.getMessage());
} catch (RhinoException e) {

83
worldedit-core/src/main/java/com/sk89q/worldedit/scripting/compat/BabelScriptTranspiler.java
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@ -1,83 +0,0 @@
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q <http://www.sk89q.com>
* Copyright (C) WorldEdit team and contributors
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.sk89q.worldedit.scripting.compat;
import com.google.common.io.CharStreams;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextFactory;
import org.mozilla.javascript.Function;
import org.mozilla.javascript.Scriptable;
import java.io.IOException;
import java.io.Reader;
import java.io.StringReader;
import java.util.concurrent.TimeUnit;
public class BabelScriptTranspiler implements ScriptTranspiler {
private static final RemoteScript BABEL = new RemoteScript(
"https://unpkg.com/@babel/standalone@7.9/babel.min.js",
"babel.min.js",
new RemoteScript(
"https://unpkg.com/core-js-bundle@3.6.5/index.js",
"core-js-bundle.js"
),
new RemoteScript(
"https://unpkg.com/regenerator-runtime@0.13.5/runtime.js",
"regenerator-runtime.js"
)
);
private final ContextFactory contextFactory = new ContextFactory() {
@Override
protected Context makeContext() {
Context context = super.makeContext();
context.setLanguageVersion(Context.VERSION_ES6);
return context;
}
};
private final Function executeBabel;
public BabelScriptTranspiler() {
Scriptable babel = BABEL.getScope();
executeBabel = contextFactory.call(ctx -> {
ctx.setOptimizationLevel(9);
String execBabelSource = "function(source) {\n" +
"return Babel.transform(source, { presets: ['env'] }).code;\n" +
"}\n";
return ctx.compileFunction(
babel, execBabelSource, "<execute-babel>", 1, null
);
});
}
@Override
public Reader transpile(Reader script) throws IOException {
long startTranspile = System.nanoTime();
Scriptable babel = BABEL.getScope();
String source = CharStreams.toString(script);
String result = (String) contextFactory.call(ctx ->
executeBabel.call(ctx, babel, null, new Object[] { source })
);
System.err.println(result);
System.err.println("Took " + TimeUnit.NANOSECONDS.toMillis(System.nanoTime() - startTranspile));
return new StringReader(result);
}
}

120
worldedit-core/src/main/java/com/sk89q/worldedit/scripting/compat/RemoteScript.java
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@ -1,120 +0,0 @@
package com.sk89q.worldedit.scripting.compat;
import com.google.common.collect.ImmutableList;
import com.sk89q.worldedit.WorldEdit;
import com.sk89q.worldedit.util.net.HttpRequest;
import org.mozilla.javascript.Context;
import org.mozilla.javascript.ContextFactory;
import org.mozilla.javascript.Scriptable;
import org.mozilla.javascript.ScriptableObject;
import org.mozilla.javascript.TopLevel;
import java.io.IOException;
import java.io.Reader;
import java.io.UncheckedIOException;
import java.net.URL;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.List;
import static com.google.common.base.Preconditions.checkState;
public class RemoteScript {
private static final int MAX_REDIRECTS = 100;
private final ContextFactory contextFactory = new ContextFactory() {
@Override
protected boolean hasFeature(Context cx, int featureIndex) {
if (featureIndex == Context.FEATURE_OLD_UNDEF_NULL_THIS) {
return true;
}
return super.hasFeature(cx, featureIndex);
}
@Override
protected Context makeContext() {
Context context = super.makeContext();
context.setLanguageVersion(Context.VERSION_ES6);
return context;
}
};
private final Path cacheDir = WorldEdit.getInstance()
.getWorkingDirectoryFile("craftscripts/.cache").toPath();
private final URL source;
private final String cacheFileName;
private final Path cachePath;
private final List<RemoteScript> dependencies;
private volatile Scriptable cachedScope;
public RemoteScript(String source, String cacheFileName, RemoteScript... dependencies) {
this.source = HttpRequest.url(source);
this.cacheFileName = cacheFileName;
this.cachePath = cacheDir.resolve(cacheFileName);
this.dependencies = ImmutableList.copyOf(dependencies);
}
private synchronized void ensureCached() throws IOException {
if (!Files.exists(cacheDir)) {
Files.createDirectories(cacheDir);
}
if (!Files.exists(cachePath)) {
boolean downloadedBabel = false;
int redirects = 0;
URL url = source;
while (redirects < MAX_REDIRECTS && !downloadedBabel) {
try (HttpRequest request = HttpRequest.get(url)) {
request.execute();
request.expectResponseCode(200, 301, 302);
if (request.getResponseCode() > 300) {
redirects++;
url = HttpRequest.url(request.getSingleHeaderValue("Location"));
continue;
}
request.saveContent(cachePath.toFile());
downloadedBabel = true;
}
}
checkState(downloadedBabel, "Too many redirects following: %s", url);
checkState(Files.exists(cachePath), "Failed to actually download %s", cacheFileName);
}
}
protected synchronized void loadIntoScope(Context ctx, Scriptable scope) {
try {
ensureCached();
try (Reader reader = Files.newBufferedReader(cachePath)) {
ctx.evaluateReader(scope, reader, cacheFileName, 1, null);
}
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
/**
* Get a scope that the script has been evaluated in.
*
* @return the scope
*/
public synchronized Scriptable getScope() {
if (cachedScope != null) {
return cachedScope;
}
// parse + execute standalone script to load it into the scope
cachedScope = contextFactory.call(ctx -> {
ScriptableObject scriptable = new TopLevel();
Scriptable newScope = ctx.initStandardObjects(scriptable);
ctx.setOptimizationLevel(9);
for (RemoteScript dependency : dependencies) {
dependency.loadIntoScope(ctx, newScope);
}
loadIntoScope(ctx, newScope);
return newScope;
});
return cachedScope;
}
}

9
worldedit-core/src/main/java/com/sk89q/worldedit/util/net/HttpRequest.java
View File

@ -45,6 +45,8 @@ import java.util.LinkedHashMap;
import java.util.Map;
import java.util.concurrent.ThreadLocalRandom;
import static com.google.common.base.Preconditions.checkState;
public class HttpRequest implements Closeable {
private static final int CONNECT_TIMEOUT = 1000 * 5;
@ -215,6 +217,13 @@ public class HttpRequest implements Closeable {
return conn.getResponseCode();
}
public String getSingleHeaderValue(String header) {
checkState(conn != null, "No connection has been made");
// maybe we should check for multi-header?
return conn.getHeaderField(header);
}
/**
* Get the input stream.
*