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Manual Reference Pages  -  MAIL::SPAMASSASSIN::PLUGIN::PDFINFO (3)

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NAME

Mail::SpamAssassin::Plugin::PDFInfo - PDFInfo Plugin for SpamAssassin

CONTENTS

SYNOPSIS



  loadplugin     Mail::SpamAssassin::Plugin::PDFInfo



DESCRIPTION

This plugin helps detected spam using attached PDF files
See ‘‘Usage:’’ below - more documentation see 20_pdfinfo.cf


 Original info kept for history.
 -------------------------------------------------------
 PDFInfo Plugin for SpamAssassin
 Version: 0.8
 Info: $Id: PDFInfo.pm 904 2007-08-12 01:36:23Z root $
 Created: 2007-08-10
 Modified: 2007-08-10
 By: Dallas Engelken


 Changes:
   0.8 - added .fdf detection (thanks John Lundin) [axb]
   0.7 - fixed empty body/pdf count buglet(thanks Jeremy) [axb]
   0.6 - added support for tags - PDFCOUNT, PDFVERSION, PDFPRODUCER, etc.
       - fixed issue on perl 5.6.1 where pdf_match_details() failed to call
         _find_pdf_mime_parts(), resulting in no detection of pdf mime parts.
       - quoted-printable support - requires MIME::QuotedPrint (which should be in everyones
         install as a part of the MIME-Base64 package which is a SA req)
       - added simple pdf_is_empty_body() function with counts the body bytes minus the
         subject line.  can add optional <bytes> param if you need to allow for a few bytes.
   0.5 - fix warns for undef $pdf_tags
       - remove { } and \ before running eval in pdf_match_details to avoid eval error
   0.4 - added pdf_is_encrypted() function
       - added option to look for image HxW on same line
   0.3 - added 2nd fuzzy md5 which uses pdf tag layout as data
       - renamed pdf_image_named() to pdf_named()
          - PDF images are encapsulated and have no names.  We are matching the PDF file name.
       - renamed pdf_image_name_regex() to pdf_name_regex()
          - PDF images are encapsulated and have no names.  We are matching the PDF file name.
       - changed pdf_image_count() a bit and added pdf_count().
          - pdf_count() checks how many pdf attachments there are on the mail
          - pdf_image_count() checks how many images are found within all pdfs in the mail.
       - removed the restriction of the pdf containing an image in order to md5 it.
       - added pdf_match_details() function to check the following details
          - author: Author of PDF if specified
          - producer: Software used to produce PDF
          - creator: Software used to produce PDF, usually similar to producer
          - title: Title of PDF
          - created: Creation Date
          - modified: Last Modified
   0.2 - support PDF octet-stream
   0.1 - just ported over the imageinfo code, and renamed to pdfinfo.
         - removed all support for png, gif, and jpg from the code.
         - prepended pdf_ to all function names to avoid conflicts with ImageInfo in SA 3.2.


 Usage:

  pdf_count()

     body RULENAME  eval:pdf_count(<min>,[max])
        min: required, message contains at least x pdf mime parts
        max: optional, if specified, must not contain more than x pdf mime parts

  pdf_image_count()

     body RULENAME  eval:pdf_image_count(<min>,[max])
        min: required, message contains at least x images in pdf attachments.
        max: optional, if specified, must not contain more than x pdf images

  pdf_pixel_coverage()

     body RULENAME  eval:pdf_pixel_coverage(<min>,[max])
        min: required, message contains at least this much pixel area
        max: optional, if specified, message must not contain more than this much pixel area

  pdf_named()

     body RULENAME  eval:pdf_named(<string>)
        string: exact file name match, if you need partial match, see pdf_name_regex()

  pdf_name_regex()

     body RULENAME  eval:pdf_name_regex(<regex>)
        regex: regular expression, see examples in ruleset

  pdf_match_md5()

     body RULENAME  eval:pdf_match_md5(<string>)
        string: 32-byte md5 hex

  pdf_match_fuzzy_md5()

     body RULENAME  eval:pdf_match_md5(<string>)
        string: 32-byte md5 hex - see ruleset for obtaining the fuzzy md5

  pdf_match_details()

     body RULENAME  eval:pdf_match_details(<detail>,<regex>);
        detail: author, creator, created, modified, producer, title
        regex: regular expression, see examples in ruleset

  pdf_is_encrypted()

     body RULENAME eval:pdf_is_encrypted()

  pdf_is_empty_body()

     body RULENAME eval:pdf_is_empty_body(<bytes>)
        bytes: maximum byte count to allow and still consider it empty

  NOTE: See the ruleset for more examples that are not documented here.



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