chg: dev: protect the gameplay with recaptcha #4

assets/js/mine-seeker/components/CaptchaOverlay.jsx

@@ -0,0 +1,169 @@
+/**
+ * This file is part of the SplendidBear Websites' projects.
+ *
+ * Copyright (c) 2026 @ www.splendidbear.org
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+import React, { useEffect, useState } from 'react';
+
+const CAPTCHA_STORAGE_KEY = 'mineseeker_captcha_verified';
+const CAPTCHA_TOKEN_KEY = 'mineseeker_captcha_token';
+const RECAPTCHA_ACTION = 'mineseeker_play';
+
+const CaptchaOverlay = ({ siteKey, onVerified, children }) => {
+  const [verified, setVerified] = useState(false);
+  const [loading, setLoading] = useState(false);
+  const [error, setError] = useState(false);
+
+  useEffect(() => {
+    const storedToken = sessionStorage.getItem(CAPTCHA_TOKEN_KEY);
+    const storedTime = sessionStorage.getItem(CAPTCHA_STORAGE_KEY);
+
+    if (storedToken && storedTime) {
+      const elapsed = (Date.now() - parseInt(storedTime)) / 1000;
+      if (110 > elapsed) {
+        const wrapper = document.getElementById('mine-wrapper');
+        if (wrapper) {
+          wrapper.dataset.captchaToken = storedToken;
+        }
+        setVerified(true);
+        onVerified?.();
+        return;
+      }
+    }
+
+    if (window.grecaptcha) {
+      window.grecaptcha.ready(() => {
+        window.grecaptcha
+          .execute(siteKey, { action: RECAPTCHA_ACTION })
+          .then(token => {
+            handleToken(token);
+          })
+          .catch(() => {
+            setError(true);
+          });
+      });
+    }
+  }, [siteKey, onVerified]);
+
+  const handleToken = token => {
+    const wrapper = document.getElementById('mine-wrapper');
+    if (wrapper) {
+      wrapper.dataset.captchaToken = token;
+    }
+    sessionStorage.setItem(CAPTCHA_TOKEN_KEY, token);
+    sessionStorage.setItem(CAPTCHA_STORAGE_KEY, Date.now().toString());
+    setVerified(true);
+    onVerified?.();
+  };
+
+  const handleClick = () => {
+    setLoading(true);
+    setError(false);
+
+    window.grecaptcha.ready(() => {
+      window.grecaptcha
+        .execute(siteKey, { action: RECAPTCHA_ACTION })
+        .then(token => {
+          handleToken(token);
+          setLoading(false);
+        })
+        .catch(() => {
+          setLoading(false);
+          setError(true);
+          setTimeout(() => setError(false), 2000);
+        });
+    });
+  };
+
+  if (verified) {
+    return <>{children}</>;
+  }
+
+  const overlayStyles = {
+    position: 'fixed',
+    top: 0,
+    left: 0,
+    width: '100%',
+    height: '100%',
+    background: 'rgba(7, 9, 13, 0.95)',
+    backdropFilter: 'blur(8px)',
+    display: 'flex',
+    alignItems: 'center',
+    justifyContent: 'center',
+    zIndex: 1000,
+  };
+
+  const contentStyles = {
+    textAlign: 'center',
+    color: '#fff',
+    maxWidth: '400px',
+    padding: '40px',
+  };
+
+  const iconStyles = {
+    fontSize: '64px',
+    color: '#236f87',
+    marginBottom: '24px',
+  };
+
+  const h1Styles = {
+    font: '800 32px Rajdhani, sans-serif',
+    margin: '0 0 16px',
+    letterSpacing: '1px',
+  };
+
+  const pStyles = {
+    color: 'rgba(149, 207, 245, 0.7)',
+    font: '400 16px Rajdhani, sans-serif',
+    margin: '0 0 32px',
+    letterSpacing: '0.5px',
+  };
+
+  const buttonStyles = {
+    background: error
+      ? 'linear-gradient(#8a2323 0%, #681a1a 100%)'
+      : loading
+        ? 'linear-gradient(#236f87 0%, #1a5068 100%)'
+        : 'linear-gradient(#236f87 0%, #1a5068 100%)',
+    border: `2px solid ${error ? '#9a2e2e' : loading ? '#2e7a9a' : '#2e7a9a'}`,
+    borderRadius: '8px',
+    color: '#e0f4ff',
+    cursor: loading ? 'wait' : 'pointer',
+    font: '800 18px Rajdhani, sans-serif',
+    letterSpacing: '2px',
+    padding: '16px 40px',
+    textTransform: 'uppercase',
+    transition: 'all 0.3s ease',
+    display: 'inline-flex',
+    alignItems: 'center',
+    gap: '12px',
+    opacity: loading ? 0.7 : 1,
+  };
+
+  return (
+    <div style={overlayStyles}>
+      <div style={contentStyles}>
+        <div style={iconStyles}>
+          <i className="fa fa-shield-halved" />
+        </div>
+        <h1 style={h1Styles}>Ready to Play?</h1>
+        <p style={pStyles}>
+          Click below to verify you&apos;re human and start playing.
+        </p>
+        <button
+          style={buttonStyles}
+          onClick={handleClick}
+          disabled={loading}
+        >
+          <i className={`fa ${loading ? 'fa-spinner fa-spin' : error ? 'fa-exclamation-circle' : 'fa-play'}`} />
+          {loading ? 'Verifying...' : error ? 'Try Again' : 'Start Playing'}
+        </button>
+      </div>
+    </div>
+  );
+};
+
+export default CaptchaOverlay;