feat: encode unauthorized header value

Signed-off-by: Timo Glastra <[email protected]>

packages/oauth2/src/error/Oauth2ResourceUnauthorizedError.ts

@@ -1,4 +1,4 @@
-import { parseWwwAuthenticateHeader } from '@animo-id/oauth2-utils'
+import { encodeWwwAuthenticateHeader, parseWwwAuthenticateHeader } from '@animo-id/oauth2-utils'
 import type { SupportedAuthenticationScheme } from '../access-token/verify-access-token'
 import type { Oauth2ErrorCodes } from '../common/v-oauth2-error'
 import { Oauth2Error } from './Oauth2Error'
@@ -56,4 +56,18 @@ export class Oauth2ResourceUnauthorizedError extends Oauth2Error {
       )
     )
   }
+
+  public toHeaderValue() {
+    return encodeWwwAuthenticateHeader(
+      this.wwwAuthenticateHeaders.map((header) => ({
+        scheme: header.scheme,
+        payload: {
+          error: header.error ?? null,
+          error_description: header.error_description ?? null,
+          scope: header.scope ?? null,
+          ...header.additionalPayload,
+        },
+      }))
+    )
+  }
 }

packages/utils/src/index.ts

@@ -19,5 +19,9 @@ export { type ValibotFetcher, createValibotFetcher, defaultFetcher } from './val
 export { type HttpMethod, vHttpMethod, vHttpsUrl, vInteger } from './validation'
 export { mergeDeep } from './object'
 export { arrayEqualsIgnoreOrder } from './array'
-export { parseWwwAuthenticateHeader, type WwwAuthenticateHeaderChallenge } from './www-authenticate'
+export {
+  parseWwwAuthenticateHeader,
+  type WwwAuthenticateHeaderChallenge,
+  encodeWwwAuthenticateHeader,
+} from './www-authenticate'
 export { ContentType } from './content-type'