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package org.javawebstack.httpserver.websocket;
import org.javawebstack.httpserver.Exchange;
import org.javawebstack.httpserver.adapter.IHTTPSocket;
import org.javawebstack.httpserver.handler.RequestHandler;
import org.javawebstack.httpserver.handler.WebSocketHandler;
import org.javawebstack.httpserver.util.websocket.WebSocketFrame;
import org.javawebstack.httpserver.util.websocket.WebSocketUtil;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
public class InternalWebSocketRequestHandler implements RequestHandler {
private final WebSocketHandler handler;
public InternalWebSocketRequestHandler(WebSocketHandler handler) {
this.handler = handler;
}
public Object handle(Exchange exchange) {
IHTTPSocket socket = exchange.socket();
try {
WebSocket webSocket = new WebSocket(exchange);
handler.onConnect(webSocket);
WebSocketFrame frame;
while (true) {
try {
frame = WebSocketFrame.read(socket.getInputStream());
} catch (IOException ex) {
handler.onClose(webSocket, null, null);
socket.close();
break;
}
if(frame.getOpcode() == WebSocketUtil.OP_CLOSE) {
WebSocketUtil.ClosePayload close = WebSocketUtil.parseClose(frame.getPayload());
handler.onClose(webSocket, close.getCode(), close.getReason());
socket.close();
break;
}
if(frame.getOpcode() == WebSocketUtil.OP_PING) {
frame.setOpcode(WebSocketUtil.OP_PONG).setMaskKey(null).write(socket.getOutputStream());
continue;
}
if(frame.getOpcode() == WebSocketUtil.OP_BINARY) {
handler.onMessage(webSocket, frame.getPayload());
continue;
}
if(frame.getOpcode() == WebSocketUtil.OP_TEXT) {
handler.onMessage(webSocket, new String(frame.getPayload(), StandardCharsets.UTF_8));
continue;
}
}
} catch (IOException ignored) {}
return null;
}
}