Re: How to read a jpg bytearray from a Flash AS3 file

[Tim Roberts]

[EMAIL PROTECTED] wrote:

Thanks! I'm using form = cgi.FieldStorage(). When I print out the
contents of form, I get this:

FieldStorage(None, None, '\xff\xd8\xff\xe0\x00\x10JFIF
\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00\xff\xdb
\x00\x84\x00\x05\x03\x04\x04\x04\x03\x05\x04\x04\x04\x05\x05\x05\x06\x07\x0c
\x08\x07\x07\x07\x07\x0f\x0b\x0b\t\x0c\x11\x0f\x12\x12\x11\x0f
\x11\x11\x13\x16\x1c\x17\x13\x14\x1a\x15\x11\x11\x18!\x18\x1a\x1d\x1d
\x1f\x1f\x1f\x13\x17$\x1e$\x1c\x1e\x1f\x1e
\x01\x05\x05\x05\x07\x06\x07\x0e\x08\x08\x0e\x1e\x14\x11\x14\x1e\x1e
\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e
\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e
\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\xff\.

Which is obviously the binary data of the image I want. How do I
access this data? I'm used to getting it like this:

name = form['name'].value

But I don't think this will work in this case. TIA.

What led you to ask that here, instead of taking 60 seconds to load cgi.py
in an editor and search for the FieldStorage class?
-- 
Tim Roberts, [EMAIL PROTECTED]
Providenza  Boekelheide, Inc.
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Re: How to read a jpg bytearray from a Flash AS3 file

[rsgalloway]

Thanks! I'm using form = cgi.FieldStorage(). When I print out the
contents of form, I get this:

FieldStorage(None, None, '\xff\xd8\xff\xe0\x00\x10JFIF
\x00\x01\x01\x00\x00\x01\x00\x01\x00\x00\xff\xdb
\x00\x84\x00\x05\x03\x04\x04\x04\x03\x05\x04\x04\x04\x05\x05\x05\x06\x07\x0c
\x08\x07\x07\x07\x07\x0f\x0b\x0b\t\x0c\x11\x0f\x12\x12\x11\x0f
\x11\x11\x13\x16\x1c\x17\x13\x14\x1a\x15\x11\x11\x18!\x18\x1a\x1d\x1d
\x1f\x1f\x1f\x13\x17$\x1e$\x1c\x1e\x1f\x1e
\x01\x05\x05\x05\x07\x06\x07\x0e\x08\x08\x0e\x1e\x14\x11\x14\x1e\x1e
\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e
\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e
\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\x1e\xff\.

Which is obviously the binary data of the image I want. How do I
access this data? I'm used to getting it like this:

name = form['name'].value

But I don't think this will work in this case. TIA.


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Re: How to read a jpg bytearray from a Flash AS3 file

[Fredrik Lundh]

[EMAIL PROTECTED] wrote:


I'm trying to save an image from a Flash AS3 to my server as a jpg
file. I found some PHP code to do this, but I want to do this in
Python. I'm not quite sure how to convert the following code to
Python. It's mainly the $GLOBALS[HTTP_RAW_POST_DATA] part I don't
know how to convert.


depends on what framework you're using.  if you're using plain CGI, you 
should be able to read the posted data from sys.stdin:


  import sys

  im = sys.stdin.read()

  f = open(name, 'wb')
  f.write(jpg)
  f.close()

to make your code a bit more robust, you may want to check the 
content-length before doing the read, e.g.


  import os

  if os.environ.get(REQUEST_METHOD) != POST:
  ... report invalid request ...

  bytes = int(os.environ.get(CONTENT_LENGTH, 0))
  if bytes  MAX_REQUEST_SIZE:
  ... report request too large ...

  im = sys.stdin.read(bytes)

to deal with query parameters etc, see

   http://docs.python.org/lib/module-cgi.html

/F

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How to read a jpg bytearray from a Flash AS3 file

[rsgalloway]

I'm trying to save an image from a Flash AS3 to my server as a jpg
file. I found some PHP code to do this, but I want to do this in
Python. I'm not quite sure how to convert the following code to
Python. It's mainly the $GLOBALS[HTTP_RAW_POST_DATA] part I don't
know how to convert.

?php

if ( isset ( $GLOBALS[HTTP_RAW_POST_DATA] )) {

// get bytearray
$im = $GLOBALS[HTTP_RAW_POST_DATA];

// save image
$f = fopen($_GET['name'], 'wb');
fwrite($f, $jpg);
fclose($f);

}  else echo 'An error occured.';

?

source:

http://designreviver.com/tutorials/actionscript-3-jpeg-encoder-revealed-saving-images-from-flash/

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Re: How to read a jpg bytearray from a Flash AS3 file

[Kay Schluehr]

On 26 Sep., 08:47, [EMAIL PROTECTED] wrote:
 I'm trying to save an image from a Flash AS3 to my server as a jpg
 file. I found some PHP code to do this, but I want to do this in
 Python.

I'd expect you use AS3 to save the image file ( just looking at Adobes
AS3 docs on how this works ) and load it with PIL if you want to post-
process it in Python:

http://www.pythonware.com/products/pil/
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