Support for IMAP IDLE in net/imap

Ruby
1

Ok, I have been suck on it for hours. I thought net/imap.rb with ruby
1.9
supported the idle command, but not yet.

Can anyone help me in implementing that? From
herehttp://www.ruby-forum.com/topic/50828,
I though this would work:

class Net::IMAP
def idle
cmd = “IDLE”
synchronize do
tag = generate_tag
put_string(tag + " " + cmd)
put_string(CRLF)
end
end

def done
cmd = “DONE”
synchronize do
put_string(cmd)
put_string(CRLF)
end
end
end

But, when i issue imap.idle, it return true, but i have to press return
twice to get the server response. And there’s no notification for new
messages.

?> imap.idle
C: RUBY0005 IDLE
=> true

?>
?> S: + idling

2

On Jul 3, 2009, at 1:16, Abhishiv S. [email protected] wrote:

Ok, I have been suck on it for hours. I thought net/imap.rb with
ruby 1.9
supported the idle command, but not yet.

Can anyone help me in implementing that?

I have a working IDLE method, but it’s not handy. Ill post it in a bit.

3

On Jul 3, 2009, at 01:16, Abhishiv S. wrote:

Ok, I have been suck on it for hours. I thought net/imap.rb with
ruby 1.9
supported the idle command, but not yet.

Can anyone help me in implementing that?

NOTE: There’s no need to post to the mailing list and the forum, they
both come to the same place.

Try this:

require ‘net/imap’

class Net::IMAP

Sends an IDLE command that waits for notifications of new or

expunged

messages. Yields responses from the server during the IDLE.

Use +break+ in the response handler to leave IDLE.

def idle(&response_handler)
raise LocalJumpError, “no block given” unless response_handler

 response = nil

 synchronize do
   tag = Thread.current[:net_imap_tag] = generate_tag
   put_string "#{tag} IDLE#{CRLF}"

   add_response_handler response_handler

   begin
     response = get_tagged_response tag
   rescue LocalJumpError # can't break cross-threads or something
   ensure
     unless response then
       put_string "DONE#{CRLF}"
       response = get_tagged_response tag
     end

     remove_response_handler response_handler
   end
 end

 response

end

end

4

On Jul 3, 2009, at 14:19, Abhishiv S. [email protected] wrote:

Eric, Thanks a lot that works like a charm.

imap.idle { |resp|
puts “Mailbox now has #{resp.data} messages”
}

Careful, you’ll get both EXIST and EXPUNGE responses, so be sure to
subtract when appropriate. Also note that EXPUNGE shifts all your
recorded UIDs down by one. See RFC 3501 for all the crazy details :frowning:

5

Eric, Thanks a lot that works like a charm.

imap.idle { |resp|
puts “Mailbox now has #{resp.data} messages”
}