Procedural File: dropbox_download.php

1. Initialising vars
2. Authorisation
3. Sanity check of get data & file
4. Send headers
5. Send file

NOTE : When testing this with PHP4.0.4 on WinXP and Apache2 there were problems with downloading in IE6 After searching the only explanation I could find is a problem with the headers:

HEADERS SENT WITH PHP4.3: HTTP/1.1�200�OK(CR) (LF) Date:�Fri,�12�Sep�2003�19:07:33�GMT(CR) (LF) Server:�Apache/2.0.47�(Win32)�PHP/4.3.3(CR) (LF) X-Powered-By:�PHP/4.3.3(CR) (LF) Set-Cookie:�PHPSESSID=06880edcc8363be3f60929576fc1bc6e;�path=/(CR) (LF) Expires:�Thu,�19�Nov�1981�08:52:00�GMT(CR) (LF) Cache-Control:�public(CR) (LF) Pragma:�(CR) (LF) Content-Transfer-Encoding:�binary(CR) (LF) Content-Disposition:�attachment;�filename=SV-262E4.png(CR) (LF) Content-Length:�92178(CR) (LF) Connection:�close(CR) (LF) Content-Type:�application/octet-stream(CR) (LF) (CR) (LF)

HEADERS SENT WITH PHP4.0.4: HTTP/1.1�200�OK(CR) (LF) Date:�Fri,�12�Sep�2003�18:28:21�GMT(CR) (LF) Server:�Apache/2.0.47�(Win32)(CR) (LF) X-Powered-By:�PHP/4.0.4(CR) (LF) Expires:�Thu,�19�Nov�1981�08:52:00�GMT(CR) (LF) Cache-Control:�no-store,�no-cache,�must-revalidate,�post-check=0,�pre-check=0,�,�public(CR) (LF) Pragma:�no-cache,�(CR) (LF) Content-Disposition:�attachment;�filename=SV-262E4.png(CR) (LF) Content-Transfer-Encoding:�binary(CR) (LF) Set-Cookie:�PHPSESSID=0a5b1c1b9d5e3b474fef359ee55e82d0;�path=/(CR) (LF) Content-Length:�92178(CR) (LF) Connection:�close(CR) (LF) Content-Type:�application/octet-stream(CR) (LF) (CR) (LF)

As you can see the there is a difference in the Cache-Control directive. I suspect that this explains the problem. Also take a look at http://bugs.php.net/bug.php?id=16458.

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