FreeLists / arachne / [arachne] Fw: [a4dos-list] Re: Arachne not displaying JPG image in email message

["Glenn McCorkle" <glennmcc@xxxxxxxxxx>]

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----- Forwarded message begin -----
From: "Glenn McCorkle" <glennmcc@xxxxxxxxxx>

arachne4dos @coollist.com General List ----------------

On ?, Glenn McCorkle wrote:

> On ?, Samuel W. Heywood wrote:

>> This afternoon I received from my sister an email message having a
>> base64 encoded JPG image attachment of about 75K bytes.

<snip>

>> filename="Boy&HisDog.jpg"

>> /9j/4AAQSkZJRgABAgAAZABkAAD/7AARRHVja3kAAQAEAAAAPAAA/+4ADkFkb2JlAGTAAAAAAf/b
>> [snipped]

>> ------=_NextPart_000_00A0_01C63B90.CC

<snip>

> And this is a screen capture showing that everything worked fine.

> http://www.cisnet.com/glennmcc/my-stuff/fine.gif

> Here are the 'boundary markers' from the message I received.

> boundary=MIME-multipart-message-boundary-1141079443
>   --MIME-multipart-message-boundary-1141079443
>   --MIME-multipart-message-boundary-1141079443
>   --MIME-multipart-message-boundary-1141079443--

> Here are the 'boundary markers' from the message you received.

>>  boundary="----=_NextPart_000_00A0_01C63B90.CCD35850"
>     > ------=_NextPart_000_00A0_01C63B90.CCD35850
>     > ------=_NextPart_000_00A0_01C63B90.CCD35850
>     > ------=_NextPart_000_00A0_01C63B90.CC
> ________________________________________________^^^^^^____

> There seems to be the problem. The end of the last boundary is missing.

> I'll see what happens here if I trimm that off.

> BRB

> Nope... that was not the problem.

> Hmmm, maybe it's due to the fact that the header boundary marker
> is enclosed in quotation marks.

> BRB

> Nope... that's not it either.

> Maybe the difference in the number of 'leading dashes'.

> BRB

> Nope... that's still not it.

> Hmmm, no 'encodeing line' in the MSOE headers.

> X-Encoding: MIME

> BRB

> Nope... that's not it either.

> _____

> I have now tried everything I can think of.

> Could someone please use MSOE to send an attatched JPEG to my address ?

> There just has to be a way to figure this out.

Found the problem.....

From the original message that Sam had trouble with....
filename="Boy&HisDog.jpg"

It's the '&' symbol in the filename.

http://www.cisnet.com/glennmcc/my-stuff/not-fine.gif

I will look into modifying Insight.exe to handle the '&' symbol.

BRB

Done.

Insight.exe now handles the '&' symbol by converting it to an underscore.
http://www.cisnet.com/glennmcc/my-stuff/and-fine.gif

http://www.cisnet.com/glennmcc/ara-gpl/insight.zip
(complete SRC code and both English & Russian .EXEs)

http://www.cisnet.com/glennmcc/ara-gpl/ins_43en.zip
(Enlish .EXE only)

http://www.cisnet.com/glennmcc/ara-gpl/ins_43ru.zip
(Russian .EXE only)

_____________

It was as simple as adding the '&' symbol to the code Michal Tyc wrote.

// BEGIN 2004-07-21 MHT
  {
     int si = 0;                      // filename suffix index
     int i = strlen(mhdr->filename);
     int l = i;
     mhdr->tofile |= i;  // make tofile nonzero if filename not empty
     while (--i >= 0)    // scan filename from right to left
     {
        signed char c = (signed char) mhdr->filename[i];
        if (c == '.')
           if (!si && i)      // suffix not found yet, and not an initial '.'
              si = i;         // remember suffix position then
           else
              goto und_repl;  // replace invalid '.'
        else if (c <= ' ' ||  // also catches 128..255 thanks to signed char
//!!glennmcc: Feb 27, 2006 -- added the '&' symbol to the list
   strchr("\"*+,/:;<=>?[\\]|\x7F&", c))
und_repl:
    mhdr->filename[i] = '_';  // replace other invalid characters
__________

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-- 
 Glenn
 http://www.delorie.com/listserv/mime/
 http://www.cisnet.com/glennmcc/
 http://www.law.cornell.edu/constitution/constitution.table.html
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