com.arangodb.shaded.vertx.core.http.impl.VertxHttp2ClientUpgradeCodec Maven / Gradle / Ivy
/*
* Copyright (c) 2011-2019 Contributors to the Eclipse Foundation
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
* which is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
*/
package com.arangodb.shaded.vertx.core.http.impl;
import com.arangodb.shaded.netty.buffer.ByteBuf;
import com.arangodb.shaded.netty.channel.ChannelHandlerContext;
import com.arangodb.shaded.netty.handler.codec.http.FullHttpResponse;
import com.arangodb.shaded.netty.handler.codec.http.HttpClientUpgradeHandler;
import com.arangodb.shaded.netty.handler.codec.http.HttpRequest;
import com.arangodb.shaded.netty.handler.codec.http2.Http2Settings;
import com.arangodb.shaded.netty.util.collection.CharObjectMap;
import com.arangodb.shaded.vertx.core.buffer.Buffer;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import static com.arangodb.shaded.netty.handler.codec.http2.Http2CodecUtil.HTTP_UPGRADE_SETTINGS_HEADER;
import static com.arangodb.shaded.netty.util.CharsetUtil.UTF_8;
/**
* @author Julien Viet
*/
public class VertxHttp2ClientUpgradeCodec implements HttpClientUpgradeHandler.UpgradeCodec {
private static final List UPGRADE_HEADERS = Collections.singletonList(HTTP_UPGRADE_SETTINGS_HEADER);
private final com.arangodb.shaded.vertx.core.http.Http2Settings settings;
public VertxHttp2ClientUpgradeCodec(com.arangodb.shaded.vertx.core.http.Http2Settings settings) {
this.settings = settings;
}
@Override
public CharSequence protocol() {
return "h2c";
}
@Override
public Collection setUpgradeHeaders(ChannelHandlerContext ctx, HttpRequest upgradeRequest) {
Http2Settings nettySettings = new Http2Settings();
HttpUtils.fromVertxInitialSettings(false, settings, nettySettings);
Buffer buf = Buffer.buffer();
for (CharObjectMap.PrimitiveEntry entry : nettySettings.entries()) {
buf.appendUnsignedShort(entry.key());
buf.appendUnsignedInt(entry.value());
}
String encodedSettings = new String(java.util.Base64.getUrlEncoder().encode(buf.getBytes()), UTF_8);
upgradeRequest.headers().set(HTTP_UPGRADE_SETTINGS_HEADER, encodedSettings);
return UPGRADE_HEADERS;
}
@Override
public void upgradeTo(ChannelHandlerContext ctx, FullHttpResponse upgradeResponse) throws Exception {
}
}