lib/net/ssh/verifiers/strict.rb


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require 'net/ssh/errors'
require 'net/ssh/known_hosts'
require 'net/ssh/verifiers/secure'

module Net 
  module SSH 
    module Verifiers

      # Does a strict host verification, looking the server up in the known
      # host files to see if a key has already been seen for this server. If this
      # server does not appear in any host file, this will silently add the
      # server. If the server does appear at least once, but the key given does
      # not match any known for the server, an exception will be raised (HostKeyMismatch).
      # Otherwise, this returns true.
      class Strict < Secure
        def verify(arguments)
          begin
            super
          rescue HostKeyUnknown => err
            err.remember_host!
            return true
          end
        end
      end

    end
  end
end