Hi
It is possible though quite complicated. You must write some kind of a
"proxy" with PHP. The process looks something like this:
The php script checks if the user is ok, reads the image file and then
echoes it out to the client. - simple as it may sound. But there is a couple
of points.
Point #1. Since PHP is HTML embeded langauge, the default mime type of it's
output is "text/html". So you will need to form the head of the http
responce manually. This would look something like this:
header("Content-Type: ".$mime_type);
header("Content-Length: ".$image_size_in_bytes);
$mime_type="image/pjpeg"; -this would be for JPG's
$mime_type="image/gif"; -this would be for GIF's (not sure though)
anyway, each file type "has" it's own mime_type - it's for you to determine
which has which.
then you may do:
echo $binary_data_read_from_image_file;
Point #2. How to preserve the original name of the image file. The problem
is that the name of requested resource (or file name in this case) cannot be
changed. In other words, if you try to save the image, that was downloaded
via URL "retrieve_image.php?file=someimage.jpg&user=jack&pass=kcaj", the
cleint (web browser) would sugest to save it as "retrieve_image.php" and not
as "someimage.jpg".
I might be wrong but the only way to trick the client is this:
echo "<img
src=\"path/retrieve_image.php\\someimage.jpg?file=someimage.jpg&user=jack&pa
ss=kcaj\">";
this way the client thinks it's requesting "someimage.jpg", but the server
is serving "retrieve_image.php" ;)
I hope this will help you
P.S. this all has worked for me, when i needed to serve the mail attachments
from webmail
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