Update antibot.js

Author: benja2998

antibot.js

@@ -1,80 +1 @@
-// javascript proof of work to prevent headless browsers while allowing 'good scrapers' like ones that just analyze the HTML
-
-(function () {
-    const difficulty = 16;
-    const timeoutMs = 30000;
-    let nonce = 0;
-
-    async function sha256(input) {
-        const encoder = new TextEncoder();
-        const data = encoder.encode(input);
-        const hashBuffer = await crypto.subtle.digest("SHA-256", data);
-        return Array.from(new Uint8Array(hashBuffer))
-            .map(b => b.toString(16).padStart(2, '0'))
-            .join('');
-    }
-
-    async function doProofOfWork(deadline) {
-        const prefix = "0".repeat(difficulty / 4);
-        while (performance.now() < deadline) {
-            const hash = await sha256(nonce.toString());
-            if (hash.startsWith(prefix)) return nonce;
-            nonce++;
-            if (nonce % 10000 === 0) await new Promise(r => setTimeout(r, 1));
-        }
-        return null;
-    }
-
-    (async function () {
-        const deadline = performance.now() + timeoutMs;
-        const statusDiv = document.getElementById("pow-status");
-
-        const allElements = Array.from(document.body.children);
-        const hiddenElements = allElements.filter(el => el !== statusDiv);
-        hiddenElements.forEach(el => el.style.display = "none");
-
-        const updateTimerAndHash = async () => {
-            const timeLeft = Math.max(0, deadline - performance.now());
-            const currentHash = await sha256(nonce.toString());
-
-            statusDiv.innerHTML = `
-                Checking if you are not a robot...
-                <br>
-                Time remaining: ${timeLeft.toFixed(0)}ms
-                <br>
-                Current Hash: ${currentHash}
-                <br>
-                Attempts: ${nonce}
-                <br>
-                Difficulty: ${difficulty}
-            `;
-        };
-
-
-        // check if the user is a human by checking if the cookie is set
-        if (document.cookie.includes("isHuman=true")) {
-            hiddenElements.forEach(el => el.style.display = "");
-            statusDiv.textContent = "";
-            return;
-        }
-
-        updateTimerAndHash();
-        const interval = setInterval(updateTimerAndHash, 100);
-
-        const solvedNonce = await doProofOfWork(deadline);
-
-        clearInterval(interval);
-
-        if (solvedNonce !== null) {
-            hiddenElements.forEach(el => el.style.display = "");
-            statusDiv.textContent = "";
-            // store a cookie to remember the user is human
-            document.cookie = "isHuman=true; path=/";
-        } else {
-            statusDiv.textContent = "Access denied. If you are a human, please try again later.";
-            hiddenElements.forEach(el => el.innerHTML = "");
-            // redirect to example.com
-            window.location.href = "https://example.com";
-        }
-    })();
-})();
+console.log("Hello world");