🔍 Add more detail to Net::IMAP#inspect TLS info - #674
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Previously, the existance of `ssl_ctx` would cause `TLS (NOT VERIFIED)` to be printed. But that isn't quite right: `ssl_ctx` is assigned immediately, before sending the `STARTTLS` command, before calling `start_tls_session`, and before `start_tls_session` returns. And those intermediate states are important distinctions for debugging TLS issues. So this updates `Net::IMAP#inspect` with two new TLS/PLAINTEXT states: * `PLAINTEXT (TLS NOT STARTED)`, when: * `#starttls` has been called (`@ssl_ctx` has been set), * but `#start_tls_session` hasn't (`@sock` is a `TCPSocket`). * `TLS (NOT ESTABLISHED)`, when: * `#start_tls_session` was called (`@sock` is an `SSLSocket`), * but hasn't returned successfully (`@sock.session` isn't available).
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Previously, the existence of
ssl_ctxwithouttls_verified?would causeTLS (NOT VERIFIED)to be output. But that isn't quite right:ssl_ctxis assigned immediately, before even sending theSTARTTLScommand, before callingstart_tls_session, and beforestart_tls_sessionreturns. And those intermediate states are important distinctions for debugging TLS issues.So this updates
Net::IMAP#inspectwith two new TLS/PLAINTEXT states:PLAINTEXT (TLS NOT STARTED), when:#starttlshas been called (@ssl_ctxhas been set),#start_tls_sessionhasn't (@sockis aTCPSocket).TLS (NOT ESTABLISHED), when:#start_tls_sessionwas called (@sockis anSSLSocket),@sock.sessionisn't available).Generally, users will only encounter these states in edge cases. For example:
STARTTLSwithNOorBAD, etcssl_ctx