[Bug 5847] New: spamd protocol File: header

[bu...@bugzilla.spamassassin.org]

https://issues.apache.org/SpamAssassin/show_bug.cgi?id=5847

           Summary: spamd protocol File: header
           Product: Spamassassin
           Version: 3.2.4
          Platform: All
        OS/Version: other
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: spamc/spamd
        AssignedTo: dev@spamassassin.apache.org
        ReportedBy: achowe@snert.com


The AV protocols for clamd, avastd, fpscand all have a SCAN file command. Yet I
can't seem to find anything similar in the spamd protocol.

Might I suggest a header enhancement for when a spamd client is on the same host
as spamd server:

    File: /path/to/file/to/scan
or
    Message-File: /path/to/file/to/scan

When present, open and scan the file, then return the result back over the
socket to client. This would improve performance of a mail scanning system by
not having to do the file open, read, and transmit a copy of the contents to SA
over a socket, which probably saves a temp. file copy anyway back to disk before
doing it's scan. More efficient just to tell spamd where to look and reduce all
the extra I/O overhead.

The only time you need to stream the file to spamd is when the client and server
are on different machines.



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