<?php
// 202711


// $user_id = "M0000";
// $user_password = "M012290493119";

// 測試空間
$user_id = "M0117";
$user_password = "90493119";
$api_key = "A21181F1EE4966D3";
$GroupId = "TEST";
$apiurl = 'http://60.244.87.101:880//twWebAPI/GetAuth';

// 正式空間
// $user_id = "M0117";
// $user_password = "90493119";
// $api_key = "A21181F1EE4966D3";
// $GroupId = "MASADA";
// $apiurl = 'http://60.244.87.101:880//twWebAPI/GetAuth';

$data = array(
    'user_id' => $user_id,
    'user_password' => $user_password,
    'api_key' => $api_key,
    'GroupId' => $GroupId,
    'apiurl' => $apiurl
);
echo $validation = get_Auth($data);

function get_Auth($data)
{

    $user_id = $data['user_id'];
    $user_password = $data['user_password'];
    $api_key = $data['api_key'];
    $GroupId = $data['GroupId'];
    $apiurl = $data['apiurl'];

    // 伺服器時間扣兩分鐘會比較穩定
    // $now = gmdate("YmdHis");
    $now = gmdate("YmdHis", strtotime("-2 minutes"));

    $data = "$user_id." . $now;
    $sign = hash_hmac('SHA256', $data, $api_key, false);

    // 各種API連線網址
    // $apiurl = 'https://erp.masada.com.tw:780/twWebAPI/GetAuth';
    $apiurl = 'http://60.244.87.101:880//twWebAPI/GetAuth';
    // $apiurl = 'http://10.10.145.2:880//twWebAPI/GetAuth';
    // $apiurl = 'https://erp.masada.com.tw:780/twWebAPI/GetAuth';

    $headerParam = [
        "UserId: $user_id",
        "Pwd: $user_password",
        "TimestampUTC: $now",
        "Sign: $sign",
        "GroupId: $GroupId"
    ];

    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $apiurl);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headerParam);

    $response = curl_exec($ch);
    if ($response === false) {
        echo 'Curl error: ' . curl_error($ch);
    } else {
        $result = json_decode($response, true);
        if ($result['Status'] == 'Success')
            return $result['Data']['CHI_Authorization'];
        if ($result['Status'] == 'Error')
            return $result['ErrorMsg'];

        print_r($result);
    }

    curl_close($ch);
}