Php & Flash

I have a flash which will call a php script.
Whats the best way to make this script can be accessed only from flash ?

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Check the $_SERVER['HTTP_USER_AGENT'] that flash sends and allow only this.

If flash don't send a user agent header, then you propably can't do much.

This server var returns "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)".
There is another server var HTTP_X_FLASH_VERSION which return the version of flash player "8,0,22,0".
But if i develop a application with a browser object i will send this var to php script. So this script isn't secure.

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Yeah that's true.

Then there is nothing that you can really do except some checks with the session(but this can give you other troubles).

You can do something while checking a the php session id and maybe this is something for you:
http://www.ghostwire.com/go/28

or

http://www.amfphp.org/

but Nick is right, since every flash movie is a local application you can't do very much. I saw application using xml/soap requests for "safe" interacting and I saw somewhere a md5 javascript encryption (but missed the URL). The last one could be the magic...

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For the md5 javascript code you can check a vbulletin forum (eg. gibberishtalk.com)

For the md5 javascript code you can check a vbulletin forum (eg. gibberishtalk.com)

Yes if you have this javascript function it's possible to use them together with some action script...

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For the md5 javascript code you can check a vbulletin forum (eg. gibberishtalk.com)

Yes if you have this javascript function it's possible to use them together with some action script...

Of course you should allways have in mind that a flash file can be easilly reversed....

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