[Twisted-web] ssl verify callback called multiple times for each request

[exarkun at twistedmatrix.com]

On 04:39 pm, kmcintyre at greenchargenet.com wrote:
>Hello, I'm wondering why the verify callback is called multiple times 
>for
>each request.  I get 2 invalid callbacks and 1 valid callback.  The 2
>invalids are errnum 18, then 26...then a valid callback.
>
>I used https://help.ubuntu.com/community/OpenSSL for ca, and signed 
>server
>and client certificates.

It's called back once for each certificate in the certificate chain 
presented by the peer.

Jean-Paul