[Tickets #3019] imp goes into an infinite loop for a couple of accounts (in Folder.php)

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Ticket URL: http://bugs.horde.org/ticket/?id=3019
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 Ticket             | 3019
 Updated By         | seker at uwyo.edu
 Summary            | imp goes into an infinite loop for a couple of accounts (in  Folder.php)
 Queue              | IMP
 Version            | HEAD
 State              | Feedback
 Priority           | 2. Medium
 Type               | Bug
 Owners             | 
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seker at uwyo.edu (2005-11-28 13:40) wrote:

So here are the error messages from the beginning of the user's login:

[client ipaddr ] PHP Notice:  Uninitialized string offset:  0 in
/var/www/html/horde/imp/lib/Folder.php on line 168, referer:
https://webmail/horde/services/portal/sidebar.php

[client ipaddr] PHP Warning:  explode(): Empty delimiter. in
/var/www/html/horde/imp/lib/Folder.php on line 168, referer:
https://webmail/horde/services/portal/sidebar.php

[client ipaddr] PHP Warning:  array_pop(): The argument should be an array 
in /var/www/html/horde/imp/lib/Folder.php on line 169, referer:
https://webmail/horde/services/portal/sidebar.php

REPEAT lines start here:
[client ipaddr] PHP Notice:  Uninitialized string offset:  0 in
/var/www/html/horde/imp/lib/Folder.php on line 174, referer:
https://webmail/horde/services/portal/sidebar.php

[client ipaddr] PHP Warning:  implode(): Bad arguments. in
/var/www/html/horde/imp/lib/Folder.php on line 174, referer:
https://webmail/horde/services/portal/sidebar.php

[client ipaddr] PHP Warning:  array_pop(): The argument should be an array 
in /var/www/html/horde/imp/lib/Folder.php on line 186, referer:
https://webmail/horde/services/portal/sidebar.php

AND repeat until timeout or machine crashes, which ever comes first.

[client ipaddr ] PHP Fatal error:  Maximum execution time of 30 seconds
exceeded in /var/www/html/horde/imp/lib/Folder.php on line 174, referer:
https://webmail/horde/services/portal/sidebar.php


horde.log entry, 1 line
Nov 28 14:04:54 HORDE [notice] [imp] Login success for USER [ip addr] to
{localhost:143} [on line 152 of "/var/www/html/horde/imp/redirect.php"]