[Flashr] image smooth

[maja kalogera]

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  ----- Original Message ----- 
  From: Mario Klingemann 
  To: Flashr at osflash.org 
  Sent: Tuesday, March 27, 2007 11:42 AM
  Subject: Re: [Flashr] image smooth


  The only way to work with BitmapData + flickr (or any other external images) at the moment is to use a server-side proxy. By this you trick flash into thinking that the image comes from your own domain and not from an external one.

  This can be done in several ways - my preferred one works with Apache which needs two modules activated: mod_rewrite and mod_proxy.

  Then just add a .htaccess file to the same folder where your swfs html page resides that contains the following 2 lines:

  RewriteEngine on
  RewriteRule  ^myLittleOpenProxy/(.+)  http://$1  [P,L]

  When you now try to open a URL on your server which is formed like this:
  http://www.yourserver.com/myLittleOpenProxy/static.flickr.com/36/149865049_f024321247_m.jpg
  Your request will be redirected to http://static.flickr.com/36/149865049_f024321247_m.jpg but flash will render it to a bitmap

  WARNING: There is a catch, because in this form can be abused as a proxy for just any site, so people
  could also call http://www.yourserver.com/myLittleOpenProxy/www.anotherwarezandpr0nsite.org/illegal.zip
  and download via your site from http://www.anotherwarezandpr0nsite.org/illegal.zip

  So you might want to limit the access to flickr only. for example like this:

  RewriteEngine on
  RewriteRule  ^flickrProxy/(.+)  http://static.flickr.com/$1  [P,L]

  This you would call like that:

  http://www.yourserver.com/flickrProxy/78/162016635_ebd60ba4d4_o.jpg
  which will translate into
  http://static.flickr.com/78/162016635_ebd60ba4d4_o.jpg


  If you cannot install the required apache modules on your server there is an alternative. You can use a PHP script to do the proxying:

  flickrproxy.php:
  <?php

      $feedURL = $_GET['url'];
      $feedURL = trim($feedURL);
      
      $ch = curl_init($feedURL);
      $result = curl_exec($ch);
      curl_close($ch);
      echo $result;

  ?>

  This would be called like this:

  http://www.yourserver.com/flickrproxy.php?url=http://static.flickr.com/24/98249100_d2bc34111d_m.jpg

  But again you might want to limit the range of allowed urls with a regular expression in order not to open up an open proxy.

  Cheers
  Mario


-- 

	Mario Klingemann / Quasimondo
	Computational Artisan
	http://www.quasimondo.com


  Kelvin Luck schrieb: 
Gábor Tátrai wrote:
  Hi All,

I'm newbie here from Hungary. I have an error after onLoadInit my images.
I'd like to use bitmapdata and attachBitmap to smooth my images, but it 
doesn't work, because of an Security Sandbox Violation error. Has anyone 
had the same problem? Is there any cure?
Thanks for your answer! Gabor.-

    
Hi,

I'm afraid other people have had the same problem and there doesn't 
currently appear to be any way around it. I suggested a possible 
workaround to the flickr team here:

http://tech.groups.yahoo.com/group/yws-flickr/message/2289

What I might do is actually produce the swf I suggest there and post it 
somewhere as a live demo and then ask again on the flickr mailing list,

Cheers,

Kelvin :)

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