From 37333d0aab1db81974ed9676f35daef0921cccf5 Mon Sep 17 00:00:00 2001
From: Nikos Triantafyllou <triantafyllou.ni@gmail.com>
Date: Fri, 26 Apr 2024 13:50:16 +0300
Subject: [PATCH] pre-auth flow for jwt_vc

---
 package.json     |  2 +-
 routes/routes.js | 46 ++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 45 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index d965b35..3100c8e 100644
--- a/package.json
+++ b/package.json
@@ -6,7 +6,7 @@
   "type": "module",
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1",
-    "dev": "SERVER_URL=https://a8a3-2a02-587-870e-d900-4edf-d4c0-8e40-c64b.ngrok-free.app node server.js"
+    "dev": "SERVER_URL=https://0a15-2a02-587-870e-d900-ed80-93f1-689f-839a.ngrok-free.app node server.js"
   },
   "author": "",
   "license": "ISC",
diff --git a/routes/routes.js b/routes/routes.js
index 2517591..8a0bd81 100644
--- a/routes/routes.js
+++ b/routes/routes.js
@@ -39,7 +39,7 @@ const publicKeyPem = fs.readFileSync("./public-key.pem", "utf-8");
 console.log("privateKey");
 console.log(privateKey);
 
-///pre-auth flow
+///pre-auth flow sd-jwt
 router.get(["/offer"], async (req, res) => {
   const uuid = req.query.sessionId ? req.query.sessionId : uuidv4();
   const preSessions = getPreCodeSessions();
@@ -67,7 +67,7 @@ router.get(["/offer"], async (req, res) => {
   });
 });
 
-//pre-auth flow request
+//pre-auth flow request sd-jwt
 router.get(["/credential-offer/:id"], (req, res) => {
   res.json({
     credential_issuer: serverURL,
@@ -81,6 +81,48 @@ router.get(["/credential-offer/:id"], (req, res) => {
   });
 });
 
+// ***************
+///pre-auth flow jwt_ve
+router.get(["/pre-offer-jwt"], async (req, res) => {
+  const uuid = req.query.sessionId ? req.query.sessionId : uuidv4();
+  const preSessions = getPreCodeSessions();
+  if (preSessions.sessions.indexOf(uuid) < 0) {
+    preSessions.sessions.push(uuid);
+    preSessions.results.push({ sessionId: uuid, status: "pending" });
+  }
+  let credentialOffer = `openid-credential-offer://?credential_offer_uri=${serverURL}/credential-offer-pre-jwt/${uuid}`; //OfferUUID
+  let code = qr.image(credentialOffer, {
+    type: "png",
+    ec_level: "H",
+    size: 10,
+    margin: 10,
+  });
+  let mediaType = "PNG";
+  let encodedQR = imageDataURI.encode(await streamToBuffer(code), mediaType);
+  res.json({
+    qr: encodedQR,
+    deepLink: credentialOffer,
+    sessionId: uuid,
+  });
+});
+
+//pre-auth flow request sd-jwt
+router.get(["/credential-offer-pre-jwt/:id"], (req, res) => {
+  res.json({
+    credential_issuer: serverURL,
+    credentials: ["VerifiablePortableDocumentA2"],
+    grants: {
+      "urn:ietf:params:oauth:grant-type:pre-authorized_code": {
+        "pre-authorized_code": req.params.id,
+        user_pin_required: true,
+      },
+    },
+  });
+});
+
+
+
+
 router.post("/token_endpoint", async (req, res) => {
   //pre-auth code flow
   const grantType = req.body.grant_type;