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POcloudfront signed urls ip address
 

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    <p>I have Signed URLs on Cloudfront working fine in PHP. Bucket policies work with HTTP referrers on S3 but because Cloudfront doesn't support HTTP referrer checks I need to serve a file to one IP address only (the client that requested the file and generated the signed URL or my web server ideally).</p> <p>Can someone please help me add the IP Address element to the JSON code so it works? </p> <pre><code>"IpAddress":{"AWS:SourceIp":"192.0.2.0/24"}, </code></pre> <p>I'm lost with the PHP and Policy Statement but think it might be easy for someone who knows: <a href="http://tinyurl.com/9czr5lp" rel="nofollow">http://tinyurl.com/9czr5lp</a></p> <p>It does encoding/signing a bit differently for a custom policy: <a href="http://docs.amazonwebservices.com/AmazonCloudFront/latest/DeveloperGuide/private-content-creating-signed-url-custom-policy.html#private-content-custom-policy-statement" rel="nofollow">http://docs.amazonwebservices.com/AmazonCloudFront/latest/DeveloperGuide/private-content-creating-signed-url-custom-policy.html#private-content-custom-policy-statement</a></p> <p>The below is an AWS example and works except not for the IP Address lock in.</p> <p>I can test this very quickly if someone can please give me a hand for two minutes!</p> <p>Thanks MASSIVELY for any help :)</p> <p>Jon</p> <pre><code> function getSignedURL($resource, $timeout) { $keyPairId = "XXXXXXXXXXXX"; $expires = time() + $timeout; $json = '{"Statement":[{"Resource":"'.$resource.'","Condition":{"DateLessThan": {"AWS:EpochTime":'.$expires.'}}}]}'; $fp=fopen("pk-XXXXXXXX.pem","r"); $priv_key=fread($fp,8192); fclose($fp); $key = openssl_get_privatekey($priv_key); if(!$key) { echo "&lt;p&gt;Failed to load private key!&lt;/p&gt;"; return; } //Sign the policy with the private key if(!openssl_sign($json, $signed_policy, $key, OPENSSL_ALGO_SHA1)) { echo '&lt;p&gt;Failed to sign policy: '.openssl_error_string().'&lt;/p&gt;'; return; } //Create url safe signed policy $base64_signed_policy = base64_encode($signed_policy); $signature = str_replace(array('+','=','/'), array('-','_','~'), $base64_signed_policy); //Construct the URL $url = $resource.'?Expires='.$expires.'&amp;Signature='.$signature.'&amp;Key-Pair-Id='.$keyPairId; return $url; } $url = getSignedURL("http://s675765.cloudfront.net/filename.mp4", 600); print $url; </code></pre>
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