added chats with another users

src/main/java/com/krylov/refound/util/WsHandshakeInterceptor.java

@@ -0,0 +1,37 @@
+package com.krylov.refound.util;
+
+import com.krylov.refound.security.JwtService;
+import com.krylov.refound.service.UserService;
+import java.util.Map;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.server.ServerHttpRequest;
+import org.springframework.http.server.ServerHttpResponse;
+import org.springframework.http.server.ServletServerHttpRequest;
+import org.springframework.stereotype.Component;
+import org.springframework.web.socket.WebSocketHandler;
+import org.springframework.web.socket.server.HandshakeInterceptor;
+
+@Component
+@RequiredArgsConstructor
+public class WsHandshakeInterceptor implements HandshakeInterceptor {
+
+  private final JwtService jwtService;
+  private final UserService userService;
+
+  @Override
+  public boolean beforeHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Map<String, Object> attributes) {
+    if (request instanceof ServletServerHttpRequest servletRequest) {
+      String token = servletRequest.getServletRequest().getParameter("token");
+      if (token != null && jwtService.isTokenValid(token)) {
+        String login = jwtService.extractLogin(token);
+        Long userId = userService.getUserIdByLogin(login);
+        attributes.put("userId", userId);
+        return true;
+      }
+    }
+    return false; // отклонить подключение без валидного токена
+  }
+
+  @Override
+  public void afterHandshake(ServerHttpRequest request, ServerHttpResponse response, WebSocketHandler wsHandler, Exception exception) {}
+}