<?php
    include_once 'aliyun-php-sdk-core/Config.php';
    use Sts\Request\V20150401 as Sts;
    function read_file($fname)
    {
        $content = '';
        if (!file_exists($fname)) {
           echo "The file $fname does not exist\n";
           exit (0);
        }
        $handle = fopen($fname, "rb");
        while (!feof($handle)) {
            $content .= fread($handle, 10000);
        }
        fclose($handle);
        return $content;
    }

    $content = read_file('./config.json');
    $myjsonarray = json_decode($content);

    $accessKeyID = $myjsonarray->AccessKeyID;
    $accessKeySecret = $myjsonarray->AccessKeySecret;
    $roleArn = $myjsonarray->RoleArn;
    $tokenExpire = $myjsonarray->TokenExpireTime;
    $policy = read_file($myjsonarray->PolicyFile);

    $iClientProfile = DefaultProfile::getProfile("cn-hangzhou", $accessKeyID, $accessKeySecret);
    $client = new DefaultAcsClient($iClientProfile);

    $request = new Sts\AssumeRoleRequest();
    $request->setRoleSessionName("client_name");
    $request->setRoleArn($roleArn);
    $request->setPolicy($policy);
    $request->setDurationSeconds($tokenExpire);
    $response = $client->doAction($request);

    $rows = array();
    $body = $response->getBody();
    $content = json_decode($body);
    if ($response->getStatus() == 200)
    {
        $rows['StatusCode'] = 200;
        $rows['AccessKeyId'] = $content->Credentials->AccessKeyId;
        $rows['AccessKeySecret'] = $content->Credentials->AccessKeySecret;
        $rows['Expiration'] = $content->Credentials->Expiration;
        $rows['SecurityToken'] = $content->Credentials->SecurityToken;
    }
    else
    {
        $rows['StatusCode'] = 500;
        $rows['ErrorCode'] = $content->Code;
        $rows['ErrorMessage'] = $content->Message;
    }
    echo json_encode($rows);
    return;
?>