WIP test app

test-app/index.js

@@ -1,2 +1,80 @@
 #!/usr/bin/env node
 
+import jwt from "jwt-authn";
+import { generateKeyPairSync } from "node:crypto";
+
+const createKeyPair = ({ format }) => {
+  if (format !== "pem" || format !== "der" || format !== "jwk") {
+    throw new Error(
+      "Format of generated keys needs to be one of the following: pem, der, or jwk. Received " +
+        format +
+        "instead."
+    );
+  }
+
+  const keyPair = generateKeyPairSync("rsa", {
+    modulusLength: 4096,
+    publicKeyEncoding: {
+      type: "spki",
+      format,
+    },
+    privateKeyEncoding: {
+      type: "pkcs8",
+      format,
+    },
+  });
+
+  return keyPair;
+};
+
+// TODO: Finish working on this function
+const createJWTSig = ({ header, payload, privateKey }) => {
+  let headerB64URL;
+  let jsonHeader;
+
+  if (Buffer.isEncoding("base64url")) {
+    // do I even need it to be a JSON object?
+    // try {
+    //   jsonHeader = JSON.parse(header);
+    // } catch (error) {
+    //   // if it says something about already being an object or JSON, then can
+    // }
+
+    // need to check if utf16 is the right encoding
+    // that's what strings in JS use
+    // but ascii has worked so far
+    // default is utf8 which is pretty ubiquitous
+    headerB64URL = Buffer.from(header, "utf16").toString("base64url");
+
+    if (header instanceof Object) {
+      // not a string. convert to string
+      jsonHeader = header;
+      const stringifyHeader = JSON.stringify(header);
+      // headerBase64URL = base64url.encode(stringifyHeader);
+      headerBase64URL = Buffer.from(stringifyHeader, "ascii").toString(
+        "base64url"
+      );
+    } else {
+      jsonHeader = JSON.parse(header);
+
+      headerBase64URL = Buffer.from(header, "ascii").toString("base64url");
+    }
+  }
+};
+
+// TODO: Finish this function after finishing auxiliary functions
+const createJWT = () => {
+  const decodedJWT = {
+    header: { alg: "RS256" },
+    payload: {
+      "iss": "anthony",
+      "exp": 1300819380,
+      "http://example.com/is_root": true,
+    },
+    signature:
+      "cC4hiUPoj9Eetdgtv3hF80EGrhuB__dzERat0XF9g2VtQgr9PJbu3XOiZj5RZmh7AAuHIm4Bh-0Qc_lF5YKt_O8W2Fp5jujGbds9uJdbF9CUAr7t1dnZcAcQjbKBYNX4BAynRFdiuB--f_nZLgrnbyTyWzO75vRK5h6xBArLIARNPvkSjtQBMHlb1L07Qe7K0GarZRmB_eSN9383LcOLn6_dO--xi12jzDwusC-eOkHWEsqtFZESc6BfI7noOPqvhJ1phCnvWh6IeYI2w9QOYEUipUTI8np6LbgGY9Fs98rqVt5AXLIhWkWywlVmtVrBp0igcN_IoypGlUPQGe77Rw",
+  };
+};
+
+// TODO: Finish this function once can create a JWT, then can decode it using the jwt-authn package
+const testJWTDecode = ({ jwt }) => {};