From: Russell Fulton <r.fulton@...>
Date: 2006-01-24T12:56:19+09:00
Subject: Net::imap exceptions

Hi,
   I have a program that I am using to do password auditing on various 
IMAP servers.  It defines this method:

def tryIMAP (host, usessl, user, pass)

    proto = usessl ? "IMAPS" : "IMAP"
   begin
      imap = Net::IMAP.new(host, usessl ? 993 : 143, usessl)
   rescue => e
     imap.disconnect if imap
STDERR.print "#{host} #{proto} #{e.to_s}\n";
     raise RuntimeError, "#{proto} failed"
   end
  begin
    imap.login( user, pass)
    imap.logout
    imap.disconnect
    'success'
  rescue Net::IMAP::NoResponseError
    'failure'
  end

end

But the rescue clause does not catch all errors:

 (Net::IMAP::ByeResponseError)948:in `receive_responses': * BYE 
Autologout; idle for too long
        from /usr/lib/ruby/1.8/net/imap.rb:932:in `synchronize'
        from /usr/lib/ruby/1.8/net/imap.rb:932:in `receive_responses'
        from /usr/lib/ruby/1.8/net/imap.rb:917:in `initialize'
        from /usr/lib/ruby/1.8/net/imap.rb:916:in `start'
        from /usr/lib/ruby/1.8/net/imap.rb:916:in `initialize'
        from test.rb:11:in `new'
        from test.rb:11:in `tryIMAP'
        from test.rb:143
        from test.rb:100:in `each'
        from test.rb:100
        from test.rb:89:in `each'
        from test.rb:89
        from test.rb:88:in `open'
        from test.rb:88

How can I catch these errors?

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