[FEAT]: 취약점 수정

Author: Seol-JY

client/src/App.js

@@ -23,9 +23,93 @@ function App() {
   );
   const [counterValue, setCounterValue] = useState(0);
 
+  // useEffect(() => {
+  //   // 마우스 메뉴 막기
+  //   const handleContextMenu = (e) => {
+  //     e.preventDefault();
+  //   };
+  //   const handleKeyDown = (e) => {
+  //     if (
+  //       // CMD + Alt + I (Chrome, Firefox, Safari)
+  //       (e.metaKey && e.altKey && e.keyCode === 73) ||
+  //       // CMD + Alt + J (Chrome)
+  //       (e.metaKey && e.altKey && e.keyCode === 74) ||
+  //       // CMD + Alt + C (Chrome)
+  //       (e.metaKey && e.altKey && e.keyCode === 67) ||
+  //       // CMD + Shift + C (Chrome)
+  //       (e.metaKey && e.shiftKey && e.keyCode === 67) ||
+  //       // Ctrl + Shift + I (Chrome, Firefox, Safari, Edge)
+  //       (e.ctrlKey && e.shiftKey && e.keyCode === 73) ||
+  //       // Ctrl + Shift + J (Chrome, Edge)
+  //       (e.ctrlKey && e.shiftKey && e.keyCode === 74) ||
+  //       // Ctrl + Shift + C (Chrome, Edge)
+  //       (e.ctrlKey && e.shiftKey && e.keyCode === 67) ||
+  //       // F12 (Chome, Firefox, Edge)
+  //       e.keyCode === 123 ||
+  //       // CMD + Alt + U, Ctrl + U (View source: Chrome, Firefox, Safari, Edge)
+  //       (e.metaKey && e.altKey && e.keyCode === 85) ||
+  //       (e.ctrlKey && e.keyCode === 85)
+  //     ) {
+  //       e.preventDefault();
+  //     }
+  //   };
+
+  //   document.addEventListener("contextmenu", handleContextMenu);
+  //   document.addEventListener("keydown", handleKeyDown);
+
+  //   return () => {
+  //     document.removeEventListener("contextmenu", handleContextMenu);
+  //     document.removeEventListener("keydown", handleKeyDown);
+  //   };
+  // }, []);
+
+  useEffect(() => {
+    // 개발자 도구 검사
+    const detectDevTool = (allow) => {
+      let a = false;
+      if (isNaN(+allow)) allow = 100;
+      const start = +new Date();
+      debugger;
+      const end = +new Date();
+      if (isNaN(start) || isNaN(end) || end - start > allow) {
+        alert("DEVTOOLS detected. all operations will be terminated.");
+        window.location.href = "/";
+      }
+    };
+
+    if (window.attachEvent) {
+      if (
+        document.readyState === "complete" ||
+        document.readyState === "interactive"
+      ) {
+        detectDevTool();
+        window.attachEvent("onresize", detectDevTool);
+        window.attachEvent("onmousemove", detectDevTool);
+        window.attachEvent("onfocus", detectDevTool);
+        window.attachEvent("onblur", detectDevTool);
+      } else {
+        setTimeout(arguments.callee, 0);
+      }
+    } else {
+      window.addEventListener("load", detectDevTool);
+      window.addEventListener("resize", detectDevTool);
+      window.addEventListener("mousemove", detectDevTool);
+      window.addEventListener("focus", detectDevTool);
+      window.addEventListener("blur", detectDevTool);
+    }
+  }, []);
+
   useEffect(() => {
     fetchCounterValue();
     egg();
+
+    window.addEventListener("devtoolschange", (event) => {
+      if (event.detail.isOpen) {
+        console.log("Developer tools opened");
+      } else {
+        console.log("Developer tools closed");
+      }
+    });
   }, []);
 
   const fetchCounterValue = async () => {