DRM Callback

[
    {
        "kind": 1,
        "media_content_key" : "XXX-MEDIA_CONTENTKEY-XXX",
        "client_user_id": "XXXXXXX",
        "player_id": "xxxxxxxxxxxxxxxx",
        "device_name": "XXXXX",
        "uservalues": {
            "uservalue0": "value0"
        }
    },
    {
        "kind": 2,
        "media_content_key" : "XXX-MEDIA_CONTENTKEY-XXX",
        "client_user_id": "XXXXXXX",
        "player_id": "xxxxxxxxxxxxxxxx",
        "device_name": "XXXXX",
        "uservalues": {
            "uservalue0": "value0"
        }
    },
    {
        "kind": 3,
        "session_key" : "XXX-SESSION_KEY-XXX", ← content_expire_reset 요청시 확인합니다.
        "media_content_key" : "XXX-MEDIA_CONTENTKEY-XXX",
        "client_user_id": "XXXXXXX",
        "player_id": "xxxxxxxxxxxxxxxx",
        "device_name": "XXXXX",
        "uservalues": {
       		"uservalue1": "value1"
        }
    }
]

{
    “data” : [
        {
            "kind": 1,
            "media_content_key": "XXX-MEDIA_CONTENT_KEY-XXX",
            "expiration_date": 1402444800,
            "expiration_count": 10,
            "expiration_playtime": 60,
            "result": 1
        },
        {
            "kind": 2,
            "media_content_key": "XXX-MEDIA_CONTENT_KEY-XXX",
            "content_delete": 1,
            "result": 1
        },
        {
            "kind": 3,
            "session_key" : "XXX-SESSION_KEY-XXX",
            "media_content_key": "XXX-MEDIA_CONTENT_KEY-XXX",
            "start_at": 140000000,
            "content_expired": 1,
            "content_delete": 1,
            "content_expire_reset": 1,
            "expiration_date": 1402444800,
            "expiration_count": 10,
            "expiration_playtime": 3600,
            "result": 1
        }
    ]
}

HTTP/1.1 200 OK
Date: Fri, 14 Oct 2016 04:12:46 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
X-Kollus-UserKey: 0993d76eb424a72f2005b874ac49405d44a6c
Content-Encoding: gzip

define('KOLLUS_KEY', '**사용자키**'); // X-Kollus-UserKey
define('JWT_KEY', '**보안키**'); // JWT 보안 키

function encode_jwt($payload, $key, $alg = 'HS256') {
    $header = array('alg' => $alg, 'typ' => 'JWT' );
    $unsignedToken = base64_encode(json_encode($header)).'.'.
    base64_encode(json_encode($payload));
    $signature = hash_hmac('sha256', $unsignedToken, $key, TRUE);
    return $unsignedToken.'.'.base64_encode($signature);
}
$payload = array(
    'data' => array(
        array(
            'kind' => 1,
            'result' =>1,
            'expiration_date' => time()+3600,
            'expiration_playtime' => 30,
            'vmcheck' => 1,
        ),
        array(
            'kind' => 2,
            'result' =>1,
            'expiration_date' => time()+3600,
            'expiration_playtime' => 30,
            'vmcheck' => 1,
        ),
        array(
            'kind' => 3,
            'result' =>1,
            'expiration_date' => time()+3600,
            'expiration_playtime' => 30,
            'vmcheck' => 1,
        ),
    ),
);

$result = encode_jwt($payload, JWT_KEY);

//header('Content-Type: application/jwt');
header('X-Kollus-UserKey: '.KOLLUS_KEY);
echo $result;

<?php
/**
* PHP Version : 5.4 above
*/
function get_jwt($payload, $key, $alg = 'HS256')
{
	$header = array('alg' => $alg, 'typ' => 'JWT' );
	$unsignedToken = base64_encode(json_encode($header)).'.'.base64_encode(json_encode($payload));
	$signature = hash_hmac('sha256', $unsignedToken, $key, TRUE);
	return $unsignedToken.'.'.base64_encode($signature);
}

function print_kollus_jwt($data)
{
    define('KOLLUS_KEY', '**사용자키**'); // X-Kollus-UserKey
    define('JWT_KEY', '**보안키**'); // JWT 보안 키
    $payload = array( ‘data’ => $data );
    $result = encode_jwt($payload, JWT_KEY);
    //header('Content-Type: application/jwt');
    header('X-Kollus-UserKey: '.KOLLUS_KEY);
    echo $result;
}

/////////////////////////////////////////////////

include "./config.php";
// 주의 : kind가 1일때 자동으로 expiration_date가 생성되는 샘플 페이지입니다.
// 재생 제한 횟수
$_default_expiration_count = 3;
$_expired_duration = 60 * 60 * 24; // 1 day

// DB Connection
$_db_conn = mysqli_connect($_hostname, $_username, $_password);
if (!$_db_conn) {
	die('Could not connect: ' . mysql_error());
}

$_db_selected = mysqli_select_db($_database, $_db_conn);
if (!$_db_selected) {
	die ('Can\'t use database : ' . mysqli_error());
}

$_kind = isset($_POST['kind']) ? ((int) $_POST['kind']) : NULL;
$_media_content_key = isset($_POST['media_content_key']) ? $_POST['media_content_key'] : NULL;
$_client_user_id = isset($_POST['client_user_id']) ? $_POST['client_user_id'] : NULL;

$channel = NULL;
$_query = sprintf("SELECT * FROM `channels` WHERE `media_content_key` = '%s'",
mysqli_real_escape_string($_media_content_key, $_db_conn));
$_result = mysqli_query($_query, $_db_conn);

if ($_result) {
	$channel = mysqli_fetch_array($_result, MYSQL_ASSOC);
	if ($channel === FALSE) $channel = NULL;
} else {
	die('Invalid query: ' . mysqli_error());
}

$user = NULL;
$_query = sprintf("SELECT * FROM `users` WHERE `client_user_id` = '%s'",
mysqli_real_escape_string($_client_user_id, $_db_conn));
$_result = mysqli_query($_query, $_db_conn);
if ($_result) {
	$user = mysqli_fetch_array($_result, MYSQL_ASSOC);
	if ($user === FALSE) $user = NULL;
} else {
	die('Invalid query: ' . mysqli_error());
}

$channel_user = NULL;
if (!is_null($_media_content_key) && !is_null($_client_user_id)) {
	$_query = sprintf("SELECT * FROM `channel_users` WHERE `user_id` = '%s', `channel_id` = '%s'", $user['id'], $channel['id']);
	$_result = mysqli_query($_query, $_db_conn);
	if ($_result) {
		$channel_user = mysqli_fetch_array($_result, MYSQL_ASSOC);
		if ($channel_user === FALSE) $channel_user = NULL;
	} else {
		die('Invalid query: ' . mysqli_error());
	}
}

$_jwt_result = array('result' => 0);
switch($_kind) {
case 1:
	if (is_null($channel_user)){
		$_expiration_date = time() + $_expired_duration;
        $_expiration_count = $_default_expiration_count;
        $_query = sprintf("INSERT INTO `channel_users`(`user_id`, `channel_id`, `expiration_date`
        ,`expiration_count` , `created_at`, `updated_at`) VALUES('%s', '%s', '%s', '%s', UNIX_TIMESTAMP(),
        UNIX_TIMESTAMP())", $user['id'], $channel['id'], $_expiration_date, $_expiration_count);
        $_result = mysqli_query($_query, $_db_conn);
		if (!$_result) {
			die('Invalid query: ' . mysqli_error());
		}
	} else {
        $_expiration_date = $channel_user['expiration_date'];
        $_expiration_count = $channel_user['$expiration_count'];
	}
    $_jwt_result['expiration_date'] = (int) $_expiration_date;
    $_jwt_result['expiration_count'] = (int) $_expiration_count;
	break;
case 2:
    if (!is_null($channel_user)){
        $_download_times = ++((int) $channel_user['download_times']);
        $_query = sprintf("UPDATE `channel_users` SET `download_times` = '%s', `updated_at` =
        UNIX_TIMESTAMP() WHERE id = %s", $_download_times, $channel_user['id']);
        $_result = mysqli_query($_query, $_db_conn);
  	    if (!$_result) {
    		die('Invalid query: ' . mysql_error());
   		}
        $_jwt_result['result'] = 1;
    }
	break;
case 3:
    if (!is_null($channel_user) && $channel_user['is_expired']) {
    	$_jwt_result['content_expired'] = 1;
    }
    break;
}

// DB Close
mysqli_close($_db_conn);
// 결과인 data array를 JWT로 변환하여 출력함
print_kollus_jwt($_jwt_result);