[asterisk-bugs] [Asterisk 0013653]: Shared IMAP mailboxes can cause the server to crash

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=13653 
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Reported By:                howardwilkinson
Assigned To:                
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Project:                    Asterisk
Issue ID:                   13653
Category:                   Applications/app_voicemail/IMAP
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.21.2 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-10-09 09:02 CDT
Last Modified:              2008-10-09 09:05 CDT
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Summary:                    Shared IMAP mailboxes can cause the server to crash
Description: 
If the IMAP mailbox used to hold the voice messages is shared amongst a
number of users then the server can crash with problems inside the UW-IMAP
C-Client code. This is caused by multiple threads trying to use the shared
structure that the c-client code produces for the mailbox stream.

The particular installation is using Cyrus Imap server, with
authuser/authpassword set and multiple users having the same imapuser
setting.
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 (0093405) howardwilkinson (reporter) - 2008-10-09 09:05
 http://bugs.digium.com/view.php?id=13653#c93405 
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I have attached a patch that fixes this problem and also adds a feature
allowing the shared mailboxes to be used to share the messages as well.

This feature adds a new option to the voicemail set. This option
'imapmbxid' can be set to a common key that should be used to identify the
messages when saved and retrieved for this particular user. This allows a
message left for one user to be retrieved by another user as though they
are the same. I use this to provide a shared set of phones with identical
behaviour but still to have separate passwords and greeting messages. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-10-09 09:05 howardwilkinsonNote Added: 0093405                          
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