AcceptHttpProxyServer.java
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package com.github.monkeywie.proxyee;
import com.github.monkeywie.proxyee.server.HttpProxyServer;
import com.github.monkeywie.proxyee.server.HttpProxyServerConfig;
import com.github.monkeywie.proxyee.server.accept.HttpProxyAcceptHandler;
import io.netty.channel.Channel;
import io.netty.handler.codec.http.*;
import java.net.InetSocketAddress;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
public class AcceptHttpProxyServer {
private static final Map<String, Integer> CLIENT_LIMIT_MAP = new ConcurrentHashMap<>();
public static void main(String[] args) throws Exception {
HttpProxyServerConfig config = new HttpProxyServerConfig();
config.setHttpProxyAcceptHandler(new HttpProxyAcceptHandler() {
@Override
public boolean onAccept(final HttpRequest request, final Channel clientChannel) {
String ip = getClientIp(clientChannel);
Integer count = CLIENT_LIMIT_MAP.getOrDefault(ip, 1);
if (count > 5) {
FullHttpResponse fullHttpResponse = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, HttpResponseStatus.FORBIDDEN);
fullHttpResponse.content().writeBytes("<html><div>访问过于频繁！</div></html>".getBytes());
clientChannel.writeAndFlush(fullHttpResponse);
return false;
}
CLIENT_LIMIT_MAP.put(ip, count + 1);
return true;
}
@Override
public void onClose(final Channel clientChannel) {
CLIENT_LIMIT_MAP.computeIfPresent(getClientIp(clientChannel), (s, count) -> {
if (count > 0) {
return count - 1;
}
return count;
});
}
private String getClientIp(Channel clientChannel) {
InetSocketAddress inetSocketAddress = (InetSocketAddress) clientChannel.localAddress();
return inetSocketAddress.getHostString();
}
});
new HttpProxyServer()
.serverConfig(config)
.start(9999);
}
}