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internal/js/credentials.templ

@@ -0,0 +1,68 @@
+package js
+
+templ Credentials() {
+}
+
+script CreateCredential(formId string) {
+    // Base64 encoding and decoding functions
+  function arrayBufferToBase64(buffer) {
+    return btoa(String.fromCharCode.apply(null, new Uint8Array(buffer)))
+      .replace(/\+/g, "-")
+      .replace(/\//g, "_")
+      .replace(/=/g, "");
+  }
+
+  function base64ToArrayBuffer(base64) {
+    const binary = atob(base64.replace(/-/g, "+").replace(/_/g, "/"));
+    const bytes = new Uint8Array(binary.length);
+    for (let i = 0; i < binary.length; i++) {
+      bytes[i] = binary.charCodeAt(i);
+    }
+    return bytes.buffer;
+  }
+
+  // Check if the form is valid
+  const form = document.getElementById(formId);
+  if (!form.checkValidity()) {
+    form.reportValidity();
+    return;
+  }
+
+  // Get user information from the form
+  const name = document.getElementById('name').value;
+  const handle = document.getElementById('handle').value;
+
+  let credential = navigator.credentials.create({
+    publicKey: {
+      challenge: new Uint8Array([117, 61, 252, 231, 191, 241]),
+      rp: { name: "ACME Corporation" },
+      user: {
+        id: new Uint8Array([79, 252, 83, 72, 214, 7, 89, 26]),
+        name: handle,
+        displayName: name
+      },
+      pubKeyCredParams: [{ type: "public-key", alg: -7 }]
+    }
+  }).then(credential => {
+    // Prepare the credential data
+    let credentialData = {
+      id: credential.id,
+      type: credential.type,
+      rawId: arrayBufferToBase64(credential.rawId),
+      response: {
+        clientDataJSON: arrayBufferToBase64(credential.response.clientDataJSON),
+        attestationObject: arrayBufferToBase64(credential.response.attestationObject)            
+      },
+      clientExtensionResults: credential.getClientExtensionResults()
+    };
+
+    // Set the serialized credential data as the form value
+    document.getElementById('credentialData').value = JSON.stringify(credentialData);
+
+    // Submit the form
+    form.submit();
+  }).catch(error => {
+    console.error('Error creating credential:', error);
+    // Handle the error (e.g., show an error message to the user)
+  });
+}