Refresh Access token when no expiration is present (#241)

Co-authored-by: Brent Bumann <[email protected]>
dropbox · May 21, 2021 · fde5745 · fde5745
1 parent 5321cec
commit fde5745
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/dropbox-sdk-dotnet/Dropbox.Api/DropboxRequestHandler.cs b/dropbox-sdk-dotnet/Dropbox.Api/DropboxRequestHandler.cs
@@ -640,7 +640,8 @@ private async Task<Result> RequestJsonString(
         private async Task<bool> CheckAndRefreshAccessToken()
         {
             bool canRefresh = this.options.OAuth2RefreshToken != null && this.options.AppKey != null;
-            bool needsRefresh = this.options.OAuth2AccessTokenExpiresAt.HasValue && DateTime.Now.AddSeconds(TokenExpirationBuffer) >= this.options.OAuth2AccessTokenExpiresAt.Value;
+            bool needsRefresh = (this.options.OAuth2AccessTokenExpiresAt.HasValue && DateTime.Now.AddSeconds(TokenExpirationBuffer) >= this.options.OAuth2AccessTokenExpiresAt.Value) ||
+                (this.options.OAuth2RefreshToken != null && !this.options.OAuth2AccessTokenExpiresAt.HasValue);
             bool needsToken = this.options.OAuth2AccessToken == null;
             if ((needsRefresh || needsToken) && canRefresh)
             {