Exception 500 when invoking generators on Vorto dev system

[aedelmann]

Steps taken:

• choose any Information model and go to its details page
• Generate code with any generator
  Expected: Generated code can be downloaded successfully
  Actual : 500 Internal Error

[aedelmann]

Hi @kolotu
do you have an idea why this is happening ? Might this have sth to do with the caching ?

[kolotu]

Hi @aedelmann,
does this happen for all generators?

[aedelmann]

@kolotu
I tested with all with the same error

[kolotu]

I'm pretty sure it has smth to do with the caching. Unfortunately I cannot reproduce it locally yet. I'll look into it.

[aedelmann]

Maybe it has sth to do with the missing config for privileged user on dev system. Just an idea

[kolotu]

Telling from the logs, it looks like the generator lambda is called, but the generator doesn't respond within 3 seconds, which leads to a timeout and the following exception. So I'd assume that the issue is more related to the generators.

[kolotu]

Thanks to @somesh-kumar I've finally found the root cause for this error. The Lambda GeneratorExecutionHandler sets the filename in the Content-Disposition header and adds quotation marks before and after the filename. When deserializing, this is interpreted as an additional quotation mark at the end of the filename (i.e. filename.json" or filename.zip"). That causes the attachment validation in the Vorto Repository to fail.