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require "openssl" require "net/smtp" Net::SMTP.class_eval do private def do_start(helodomain, user, secret, authtype) raise IOError, 'SMTP session already started' if @started check_auth_args user, secret, authtype if user or secret sock = timeout(@open_timeout) { TCPSocket.open(@address, @port) } @socket = Net::InternetMessageIO.new(sock) @socket.read_timeout = 60 #@read_timeout check_response(critical { recv_response() }) do_helo(helodomain) if starttls raise 'openssl library not installed' unless defined?(OpenSSL) ssl = OpenSSL::SSL::SSLSocket.new(sock) ssl.sync_close = true ssl.connect @socket = Net::InternetMessageIO.new(ssl) @socket.read_timeout = 60 #@read_timeout do_helo(helodomain) end authenticate user, secret, authtype if user @started = true ensure unless @started # authentication failed, cancel connection. @socket.close if not @started and @socket and not @socket.closed? @socket = nil end end def do_helo(helodomain) begin if @esmtp ehlo helodomain else helo helodomain end rescue Net::ProtocolError if @esmtp @esmtp = false @error_occured = false retry end raise end end def starttls getok('STARTTLS') rescue return false return true end def quit begin getok('QUIT') rescue EOFError end end end

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