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<?php
class EduSharingHelper {
/**
* generate a new key pair (private + public) to be registered in the edu-sharing repository
* Store the data somewhere in your application, e.g. database
* use the public key returned to register the application in edu-sharing
* NOTE: This function will fail on windows-based systems!
* @throws Exception
*/
public static function generateKeyPair(
)
{
$res = openssl_pkey_new();
if(!$res) {
throw new Exception("No result from openssl_pkey_new. Please check your php installation");
}
openssl_pkey_export($res, $privatekey);
$publickey = openssl_pkey_get_details($res);
$publickey = $publickey["key"];
return [
"privatekey" => $privatekey,
"publickey" => $publickey
];
}
/**
* Generates an edu-sharing compatible xml file for registering the application
* This is a very basic function and is only intended for demonstration or manual use. Data is not escaped!
*/
public static function generateEduAppXMLData(string $appId, string $publickey, string $type = 'LMS', string $publicIP = '*') {
return '<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
<properties>
<entry key="appid">' . $appId . '</entry>
<entry key="public_key">' . $publickey . '</entry>
<entry key="type">' . $type . '</entry>
<entry key="domain"></entry>
<!-- in case of wildcard host: Replace this, if possible, with the public ip from your service -->
<entry key ="host">' . $publicIP . '</entry>
<!-- must be true -->
<entry key="trustedclient">true</entry>
</properties>
';
}
}
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