MIME type matching not working as expected

[Christoph Erdle]

Hi,

we are trying to implement a differentiation between different types of postscript documents. Some of our printers (Ricoh MP C2800) need to be accessed with user codes, which can be included on the client side directly inside the postscript document which get's sent to CUPS. Those documents have to be sent directly to the printers without further filtering through foomatic. The routing part work's nicely with manually set cupsFilter lines in the PPDs.

What's not working is the detection of those documents using the MIME autotype feature.

I included the following type definition in /etc/cups/local.types:

application/postscript-prefiltered     priority(200) + \
                                contains(0,4096,"setuserinfo") + \
                                (ai eps ps string(0,%!) string(0,<04>%!) \
                                contains(0,128,<1B>%-12345X) + \
                                (contains(0,4096,"LANGUAGE=POSTSCRIPT") \
                                 contains(0,4096,"LANGUAGE = Postscript") \
                                 contains(0,4096,"LANGUAGE = PostScript") \
                                 contains(0,4096,"LANGUAGE = POSTSCRIPT") \
                                 (contains(0,4096,<0a>%!) + \
                                  !contains(0,4096,"ENTER LANGUAGE"))))

Except for the first two lines this is the definition of postscript extracted from /usr/share/cups/mime/mime.type. Those files containing the string setuserinfo in the postscript header shall be typed as application/postscript-prefiltered.

But this definition does not work as expected. Default postscript docs sent to the printer are typed correctly as application/postscript. But when sending a document containing the setuserinfo string, those also get typed as application/postscript and not as application/postscript-prefiltered, as I had expected.

What am I doing wrong in my attempt to differentiate between the two types of postscript docs? Any advice is appreciated.

The following is the beginning of a PS file send from a client machine with set user code (setuserinfo), which is not typed correctly.

%!PS-Adobe-3.0
%APL_DSC_Encoding: UTF8
%APLProducer: (Version 10.6.5 (Build 10H574) Quartz PS Context)
%%Title: (mime.types - what am I missing - cups.general - Forums - CUPS)
%%Creator: (Safari: cgpdftops CUPS filter)
%%CreationDate: (Wednesday, December 15 2010 16:26:30 CET)
%%For: (Christoph Erdle)
%%DocumentData: Clean7Bit
%%LanguageLevel: 3
%%PageOrder: Ascend
%RBINumCopies: 1
%%Pages: (atend)
%%BoundingBox: (atend)
%%EndComments
userdict/dscInfo 5 dict dup begin
/Title(mime.types - what am I missing - cups.general - Forums - CUPS)def
/Creator(Safari: cgpdftops CUPS filter)def
/CreationDate(Wednesday, December 15 2010 16:26:30 CET)def
/For(Christoph Erdle)def
/Pages 1 def
end put
mark
  () (731266) (201012151726) {setuserinfo} stopped
cleartomark
%%BeginProlog
%%BeginFile: lw8_errorhandler-2.0
/currentpacking where
        { pop /oldpack currentpacking def /setpacking where
                {
                        pop false setpacking
                }if
        }if
/$brkpage 64 dict def $brkpage begin


Kind regards,
Christoph Erdle