/
HttpSslRedirectHandler.java
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/
HttpSslRedirectHandler.java
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/*
* Copyright (C) 2016-2019 phantombot.tv
*
* 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 <http://www.gnu.org/licenses/>.
*/
package com.gmt2001.httpwsserver;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import io.netty.handler.codec.http.FullHttpRequest;
import io.netty.handler.codec.http.FullHttpResponse;
import io.netty.handler.codec.http.HttpHeaderNames;
import io.netty.handler.codec.http.HttpResponseStatus;
import org.sqlite.SQLiteConfig;
/**
* Redirects HTTP requests to HTTPS, when SSL is enabled
*
* @author gmt2001
*/
public class HttpSslRedirectHandler extends SimpleChannelInboundHandler<FullHttpRequest> {
/**
* Default Constructor
*/
HttpSslRedirectHandler() {
super();
}
/**
* Redirects non-SSL requests to SSL
*
* @param ctx The {@link ChannelHandlerContext} of the session
* @param req The {@link FullHttpRequest} containing the request
* @throws Exception Passes any thrown exceptions up the stack
*/
@Override
protected void channelRead0(ChannelHandlerContext ctx, FullHttpRequest req) throws Exception {
if (!req.decoderResult().isSuccess()) {
HttpServerPageHandler.sendHttpResponse(ctx, req, HttpServerPageHandler.prepareHttpResponse(HttpResponseStatus.BAD_REQUEST, null, null));
return;
}
String host = req.headers().get(HttpHeaderNames.HOST);
if (host != null && !host.isBlank()) {
String uri = "https://" + host + req.uri();
com.gmt2001.Console.debug.println("301: " + uri);
FullHttpResponse res = HttpServerPageHandler.prepareHttpResponse(HttpResponseStatus.MOVED_PERMANENTLY, null, null);
res.headers().set(HttpHeaderNames.LOCATION, uri);
HttpServerPageHandler.sendHttpResponse(ctx, req, res);
} else {
HttpServerPageHandler.sendHttpResponse(ctx, req, HttpServerPageHandler.prepareHttpResponse(HttpResponseStatus.FORBIDDEN, "HTTPS Required".getBytes(), null));
}
}
/**
* Handles exceptions that are thrown up the stack
*
* @param ctx The {@link ChannelHandlerContext} of the session
* @param cause The exception
*/
@Override
public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) {
com.gmt2001.Console.debug.printOrLogStackTrace(cause);
ctx.close();
}
}