> The data returned from the post should initially be treated
> as binary - because you have image data that is binary
> and has not been encoded. So what I did was use read/binary
> to get your post-data file.

I'm using 'read-io to retrieve the POSTed data. There is no /binary
refinement for 'read-io. Since 'read-io is a "low-level read from a port"
according to 'help, isn't it already retrieving the POSTed data in binary
form?

Ryan C. Christiansen
Web Developer

Intellisol International
4733 Amber Valley Parkway
Fargo, ND 58104
701-235-3390 ext. 6671
FAX: 701-235-9940
http://www.intellisol.com

Global Leader in People Performance Software

_____________________________________

Confidentiality Notice
This message may contain privileged and confidential information. If you
think, for any reason, that this message may have been addressed to you in
error, you must not disseminate, copy or take any action in reliance on it,
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                    "Brett Handley"                                                    
                              
                    <brett@codecons        To:     <[EMAIL PROTECTED]>              
                              
                    cious.com>             cc:                                         
                              
                    Sent by:               Subject:     [REBOL] Re: need advice on 
parsing image data                
                    rebol-bounce@re                                                    
                              
                    bol.com                                                            
                              
                                                                                       
                              
                                                                                       
                              
                    04/28/2001                                                         
                              
                    12:02 AM                                                           
                              
                    Please respond                                                     
                              
                    to rebol-list                                                      
                              
                                                                                       
                              
                                                                                       
                              




Hi Ryan,

I got the post-data file from the url of your earlier message.

I'm no expert but here's my thinking.

1) The data returned from the post should initially be treated as binary -
because you have image data that is binary and has not been encoded. So
what
I did was use read/binary to get your post-data file. I don't know for
sure,
but it is possible some clients may upload the file data in a different
encoding like Base 64 rather than straight binary. So you may need to
handle
the case where a content-transfer-encoding header is given.

2) Though you data is binary doesn't mean you can't parse it like a string.
Just remember to use /all refinement of parse.

I already had some mime type handling stuff for emails. So I changed around
a little bit to handle your file as well. It is very possible I still
haven't handled the RFCs properly but it seems to work at the moment.

Using Rebo/View Try this script - The view part is just to show that I
succesfully got your image data.

    do http://www.codeconscious.com/rebol-library/message-tools.r
    post-data: read/binary http://www.fargonews.com/post-data
    r: decode-mime-parts mime-parts? post-data
"---------------------------7d1a92c9014c"
    write/binary %tf.jpg r/7/content
    view layout [image %tf.jpg]

BTW I'd like to know how to display the image without having to write the
file first - anyone - please?

Hope it helps you.
Brett Handley

----- Original Message -----
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, April 28, 2001 6:28 AM
Subject: [REBOL] need advice on parsing image data


When I post a form entry and a file using multipart/form-data encoding, I
get the following....

-----------------------------7d1a92c9014c
Content-Disposition: form-data; name="content"

content
-----------------------------7d1a92c9014c
Content-Disposition: form-data; name="file"; filename="D:
\fgonews\ad_graphic_01.jpg"
Content-Type: image/pjpeg

���� (plus a whole bunch more characters that I am unable to
copy-and-paste)
-----------------------------7d1a92c9014c--


This is an easy parse. However, REBOL will not parse the image data. It
gets stuck when it reaches an unknown character, which shows up in Notepad
as a square. As you can see, I'm not even able to copy-and-paste the actual
image data from the text file into this e-mail. Does anyone have any advice
on how to parse this image data?

Ryan C. Christiansen
Web Developer

Intellisol International
4733 Amber Valley Parkway
Fargo, ND 58104
701-235-3390 ext. 6671
FAX: 701-235-9940
http://www.intellisol.com

Global Leader in People Performance Software

_____________________________________

Confidentiality Notice
This message may contain privileged and confidential information. If you
think, for any reason, that this message may have been addressed to you in
error, you must not disseminate, copy or take any action in reliance on it,
and we would ask you to notify us immediately by return email to
[EMAIL PROTECTED]

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