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http://bugs.exim.org/show_bug.cgi?id=1078
Summary: Detect if the 'av_scanner' has run or not.
Product: Exim
Version: 4.74
Platform: Other
OS/Version: Linux
Status: NEW
Severity: wishlist
Priority: medium
Component: Content Scanning
AssignedTo: tom@???
ReportedBy: john.horne@???
CC: exim-dev@???
Created an attachment (id=452)
--> (
http://bugs.exim.org/attachment.cgi?id=452)
Patch for new malware variable av_failed
The current 'malware' condition returns a DEFER if there is a problem with the
scanner at all. However, the user cannot detect this unless they use the
condition with an 'accept' or 'deny' ACL verb. I want to use:
warn malware = *
and then process the result of whether malware was found or not, and whether to
deliver it or not depending on other conditions (recipients).
At present this is not possible. I have attached a patch which creates a new
variable - 'av_failed' - which is 0 by default, but gets set to 1 if the
'malware' condition returns a DEFER for any reason. Using this I can now do
things such as:
=========================================================
warn malware = *
# Check if AV has actually run.
condition = ${if == {$av_failed} {0} }
log_message = LOGGING: Running malware check on message: $malware_name
# AV has not run.
defer condition = ${if == {$av_failed} {1} }
log_message = LOGGING: ClamAV message deferred.
=========================================================
The patch has been created against Exim 4.74, and been tested on live systems
(under 4.73).
John.
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