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mynona avatar mynona commented on September 15, 2024 1

Hi @vamsii777 , I went through the whole flow with breakpoints and I observed that the nonce parameter is correctly captured.

Therefore, I looked at the code again and – hopefully / maybe – I found the issue:

The Tokens are generated via the handleToken controller.
This controller calls the codeManager

guard let code = try await codeManager.getCode(codeString)

But the codeManager has no knowledge about the nonce parameter. When the code is generated the nonce parameter is not passed as parameter but in the tokenHandler the nonce parameter is taken from the code.

Token Manager:

guard let code = try await codeManager.getCode(codeString), ...
if isOpenIDConnectFlow {
            let (access, refresh, idToken) = try await tokenManager.generateTokens(
                clientID: clientID,
                userID: code.userID,
                scopes: scopes,
                accessTokenExpiryTime: expiryTime,
                idTokenExpiryTime: expiryTime,
                nonce: code.nonce
            )

But this is not possible because the CodeManager has no knowledge about nonce:

   /// Generate Authorization Code
   func generateCode(userID: String, clientID: String, redirectURI: String, scopes: [String]?, codeChallenge: String?, codeChallengeMethod: String?) throws -> String {

If this function is extended to have nonce as optional Parameter as well, then nonce can be stored when the Authorization code is generated and returned in exchange for the code.

I hope this is of some help. As I checked only the Authorization Grant Flow maybe this does not capture all situations.


If I fake it:

  /// Generate Authorization Code
   func generateCode(userID: String, clientID: String, redirectURI: String, scopes: [String]?, codeChallenge: String?, codeChallengeMethod: String?) throws -> String {



      let generatedCode = UUID().uuidString
      let expiryDate = Date().addingTimeInterval(60)

      let authorizationCode = MyAuthorizationCode(
         code_id: generatedCode,
         client_id: clientID,
         redirect_uri: redirectURI,
         user_id: userID,
         expiry_date: expiryDate,
         scopes: scopes,
         code_challenge: codeChallenge,
         code_challenge_method: codeChallengeMethod,
         nonce: "test" // FAKE IT FOR TESTING PURPOSES
      )

      _ = authorizationCode.save(on: app.db)

      return generatedCode
   }

I get the IDToken with nonce:

Bildschirmfoto 2024-01-06 um 08 36 40

from vapor-oauth.

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