[Tickets #3159] NEW: browser timeout during long fetchmail sessions

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Ticket URL: http://bugs.horde.org/ticket/?id=3159
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 Ticket             | 3159
 Created By         | lonely_bludger at hotmail.com
 Summary            | browser timeout during long fetchmail sessions
 Queue              | IMP
 Version            | 4.0.3
 State              | New
 Priority           | 2. Medium
 Type               | Enhancement
 Owners             | 
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lonely_bludger at hotmail.com (2005-12-16 12:42) wrote:

Hi,

When I receive large attachments (2Mb+) at my account, fetchmail a lot of
times stops before the mail-fetch is finished.

Actually, I believe it is the browser that stops.  The reason is when you
click on the "Fetch Mail" icon in the popup, the web server doesnt feed
anything back to the browser at all until everything has finished fetching.

The browser simply times out and closes the connection because it doesnt
receive any response.  This timeout have tested to vary from 20seconds (IE)
to up to 45seconds (FireFox).

This problem is described here with a sample solution: (look under Sjoerd
van der Hoorn - 21 June) - I havent verified the sample solution.
http://fi.php.net/manual/en/function.set-time-limit.php

(I have made sure my PHP max-execution-timeout is 300 and checked with my
host that APACHE's timeout is also 300seconds)

I have done some modifications but they are not very neat at all, the best
way is to have something like a "progress bar" or something that spits out
something every 5-10seconds.

My mods are cruide and doesnt fully work but kind of helps it a little: I
fetch from two accounts so have so far inserted a line in Fetchmail.php
(under imp/lib) approx line 299 (under the "foreach" loop within function
fetchmail() ):

echo "<font color=white>Fetching mail for account: ".$val."</font><br>";
flush();

and at the same time swapped the output header lines in fetchmail.php (under
imp) so the header is spitted out to the browser before fetchmail process
begins.

Suggestion:
1. progress bar, or just "full stop", or
2. just flush out blank-spaces or something which are not displayed on the
webpage but will keep the connection alive, or
3. anything else?

If you can display how many messages fetchmail is fetching and the total
size right at the start that would be good too (??)

Thanks :)