in reply to OCSP for LWP::UserAgent

This isn't exactly what you asked for, but maybe an alternative approach: You should be able to use LWP::UserAgent with servers without OCSP stapling by passing the corresponding option like this: 
$ua->ssl_opts( SSL_ocsp_mode => SSL_OCSP_NO_STAPLE );

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(Combined from the documentation for IO::Socket::SSL and LWP::UserAgent)

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Re^2: OCSP for LWP::UserAgent
by ramabu (Initiate) on Jun 06, 2018 at 06:08 UTC
    Thanks!
    This is definitely not what I asked for :-)

    I want to do OCSP.
    But if the HTTPS server doesn't staple a status response - then my only opportunity is during verify callback.
    Even if it did - it would only be for the leaf certificate, and I am after good status throughout the chain.
    However - I don't know how to recall the OCSP resolver of the underlying IO::Socket::SSL instance from within the callback.
    That's my question

    I did try to connect/disconnect the IP and port from the URL, and do the OCSP there, and only proceed to the actual request if this "tls-ocsp-ping" was successful.
    However, this approach can have a performance impact, as the LWP::UserAgent with keepalive will not re-do a TLS handshake for every request (to same server).

    rama
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