[prev in list] [next in list] [prev in thread] [next in thread] 

List:       php-db
Subject:    Re: [PHP-DB] Re: Image Bank with php & mysql!! ??!!
From:       tony.mccrory () mgn ! co ! uk
Date:       2001-07-30 15:34:26
[Download RAW message or body]


To take it a step further, I would suggest creating a php script
downloadimage.php as follows:

<?php
//downloadimage.php
//some code to verify requested download against customers details,
remembering not to send any output to the browser (would upset the header()
function)
//
header("Content-type: image/jpeg");
$image_name=urldecode($requiredimage);
header( "Content-Description: JPEG Image from Freds Library ($image_name)"
);
header( "Content-Disposition: attachment; filename=$image_name" );
$the_image="/imagelibrary/highresolution/$image_name";
readfile($the_image);
?>


Then link to that with
<a href=downloadimage.php?imagename=10293492.jpg&customerid=11217&>Download
Image</a>


Make sure the images are outside of your webservers document root.  Then
you can programatically decide whether to serve the image to the user.
Removes the possibility of leeching the entire library..

Tony

--
Tony McCrory
IT, Trinity Mirror group (Ireland)
(028) 9068 0168
tony.mccrory@mgn.co.uk


                                                                                      \
                
                    "Hugh Bothwell"                                                   \
                
                    <hugh_bothwell@ho        To:     php-db@lists.php.net             \
                
                    tmail.com>               cc:                                      \
                
                                             Subject:     [PHP-DB] Re: Image Bank \
                with php & mysql!! ??!!              
                    07/30/2001 02:14                                                  \
                
                    PM                                                                \
                
                                                                                      \
                
                                                                                      \






"Koutsogiannopoulos Karolos" <k.koutsogiannopoulos@ideal.gr> wrote in
message news:9FF400760CD3D311B3B000A0C9D440BC9688A0@exchange.internal...
> I wan't your opinion regarding a program i am constructing. It is about
an
> image bank for graphic studios or anyone else who needs a program that
can
> insert his pictures or descriptions of it and be able to make a fast and
> reliable search.

http://www.hotscripts.com/PHP/Scripts_and_Programs/Image_Galleries/more2.htm

l


> What would be best.? Inserting the pictures in the DB or in the file
system

I would keep the image name in the database; save the original image
in a dedicated directory with a numeric name like 4920185.jpg and
then the thumbnail either with a suffix (like 4920185b.jpg) or with the
same name in a thumbnails directory; store the number as the picture ID.

The numbers should be large and pseudorandom, ie you don't want
to make it easy for someone to write a script to leech all your
pictures (it'll still be possible, but harder).  Maybe use the database
ID to seed a random number generator, and use the Nth generated
number?

Have a text field for keywords, a text field for description,
a price field?, the author's name, email, and homepage.  If you put
the image directory below the web root directory, then the images
can only be accessed via a script, and you can restore the original
name at download (this solves the problem of name collisions).

If you're going to sell the pictures, you should allow a buyer more
than one download, in case they screw up or accidentally delete
it on their system; I would have a table for 'current purchases' with
a buyer ID and picture ID, and allow them something like access
for a week, up to 20 downloads of that image.

> ? Also notice that it is a reference db and not an actual bank. I mean
that
> there will be only photos of low quality and not the full picture which
> could be very large.

(shrug) as above, keep the images in the filesystem; then it
doesn't matter how large it is.



--
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, e-mail: php-db-unsubscribe@lists.php.net
For additional commands, e-mail: php-db-help@lists.php.net
To contact the list administrators, e-mail: php-list-admin@lists.php.net




IMPORTANT NOTICE  The information in this e-mail is confidential and should
only be read by those persons to whom it is addressed and is not intended
to be relied upon by any person without subsequent written confirmation of
its contents.  Furthermore, the content of this e-mail is the personal view
of the sender and does not represent the advice, views or opinion of our
company.  Accordingly, our company disclaim all responsibility and accept
no liability (including in negligence) for the consequences of any person
acting, or refraining from acting, on such information prior to the receipt
by those persons of subsequent written confirmation.  In particular (but
not by way of limitation) our company disclaims all responsibility and
accepts no liability for any e-mails which are defamatory, offensive,
racist or in any other way are in breach of any third party's rights,
including breach of confidence, privacy or other rights.  If you have
received this e-mail message in error, please notify me immediately by
telephone.  Please also destroy and delete the message from your computer.
Any form of reproduction, dissemination, copying, disclosure, modification,
distribution and/or publication of this e-mail message is strictly
prohibited.  Trinity Mirror plc is the holding company for the Trinity
Mirror group of companies and is registered in England No. 82548, with its
address at Kingsfield Court, Chester Business Park, Chester CH4 9RE.


-- 
PHP Database Mailing List (http://www.php.net/)
To unsubscribe, e-mail: php-db-unsubscribe@lists.php.net
For additional commands, e-mail: php-db-help@lists.php.net
To contact the list administrators, e-mail: php-list-admin@lists.php.net


[prev in list] [next in list] [prev in thread] [next in thread]