Amazon CloudFront is a web service for content delivery (CDN). It integrates with other Amazon Web Services EC2 / S3 to give developers and businesses an easy way to distribute content to end users with low latency and high data transfer speeds.
http://aws.amazon.com/cloudfront/
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You can follow basic steps here to setup CloudFront with Amazon S3 with your domain…
How to Setup Amazon S3 with CloudFront as a Content Delivery Network
You can download Cloudfront keys from AWS account
https://aws-portal.amazon.com/gp/aws/developer/account/index.html?action=access-key
<?php error_reporting(E_ALL); $file="svnlabs.flv"; // file on Amazon S3 function rsa_sha1_sign($policy, $private_key_filename) { $signature = ""; // load the private key $fp = fopen($private_key_filename, "r"); $priv_key = fread($fp, 8192); fclose($fp); $pkeyid = openssl_get_privatekey($priv_key); // compute signature openssl_sign($policy, $signature, $pkeyid); // free the key from memory openssl_free_key($pkeyid); return $signature; } function url_safe_base64_encode($value) { $encoded = base64_encode($value); // replace unsafe characters +, = and / with the safe characters -, _ and ~ return str_replace( array('+', '=', '/'), array('-', '_', '~'), $encoded); } function encode_query_params($stream_name) { return str_replace( array('?', '=', '&'), array('%3F', '%3D', '%26'), $stream_name); } /// Download from here... https://aws-portal.amazon.com/gp/aws/developer/account/index.html?action=access-key $private_key_filename = 'pk-XXXXXXXXXXXXXXXXXXXX.pem'; $key_pair_id = 'XXXXXXXXXXXXXXXXXXXX'; $cloudfront= 'http://svnlabs.cloudfront.net/'; $file_location = "$cloudfront$file"; $expires = time() + 3; // 3 min from now $remote_ip = $_SERVER['REMOTE_ADDR']; $policy = '{'. '"Statement":['. '{'. '"Resource":"'. $file_location . '",'. '"Condition":{'. '"IpAddress":{"AWS:SourceIp":"' . $remote_ip . '/32"},'. '"DateLessThan":{"AWS:EpochTime":' . $expires . '}'. '}'. '}'. ']' . '}'; $encoded_policy = url_safe_base64_encode($policy); $signature = rsa_sha1_sign($policy, $private_key_filename); $encoded_signature = url_safe_base64_encode($signature); $streamer="?Policy=$encoded_policy&Signature=$encoded_signature&Key-Pair-Id=$key_pair_id" ?> <html> <head> <title>CloudFront Implementation in PHP</title> </head> <body> <a href='<?php echo "$file_location$streamer"; ?>'><?php echo "$file_location$streamer"; ?></a> </body> </html>
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