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rohmann/github_origin.php

Last active December 21, 2015 15:28
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Ensure a web request is coming from github. Useful for setting up web hooks
Raw
github_origin.php
<?php
function githubOrigin() {
function netMatch($CIDR,$IP) {
list ($net, $mask) = explode ('/', $CIDR);
return ( ip2long ($IP) & ~((1 << (32 - $mask)) - 1) ) == ip2long ($net);
}
return (netMatch("204.232.175.64/27",$_SERVER['REMOTE_ADDR']) || netMatch("192.30.252.0/22",$_SERVER['REMOTE_ADDR']));
}
//Make sure this request has come from a github IP
if (!githubOrigin()) die('Unauthorized');
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