S3直接在JavaScript中上传

我正在尝试完成简单操作,并将JavaScript直接上传到Amazon S3.但是,如何隐藏我的访问权限和秘密密钥？我没有在他们的文档或此站点中看到任何答案.

我正在使用他们推荐的方法在HTML中进行设置.我也在使用Backbone和Bower.

<script src="https://sdk.amazonaws.com/js/aws-sdk-2.0.25.min.js"></script>
<script type="text/javascript">
  // See the Configuring section to configure credentials in the SDK
  AWS.config.credentials = ...;

  // Configure your region
  AWS.config.region = 'us-west-2';
</script>
<input type="file" id="file-chooser" /> 
<button id="upload-button">Upload to S3</button>
<div id="results"></div>

<script type="text/javascript">
  var bucket = new AWS.S3({params: {Bucket: 'myBucket'}});

  var fileChooser = document.getElementById('file-chooser');
  var button = document.getElementById('upload-button');
  var results = document.getElementById('results');
  button.addEventListener('click', function() {
    var file = fileChooser.files[0];
    if (file) {
      results.innerHTML = '';

      var params = {Key: file.name, ContentType: file.type, Body: file};
      bucket.putObject(params, function (err, data) {
        results.innerHTML = err ? 'ERROR!' : 'UPLOADED.';
      });
    } else {
      results.innerHTML = 'Nothing to upload.';
    }
  }, false);
</script>

解决方法:

您可以使用STS为每次上传生成临时的临时凭证,然后将其传递给JS SDK,这样您就不必透露长期的API密钥.

使用AWS PHP SDK(示例程序包：“ aws / aws-sdk-php”：“〜2.4”)的示例,假设您的access_key_id和secret_access_key在ENV中可用.

马虎的例子：

<?php 
include 'vendor/autoload.php';

use Aws\Sts\StsClient;

/** Create Temporary Credentials */
$stsclient = StsClient::factory();
$temp_creds = $stsclient->getSessionToken(900)->get('Credentials'); // 15 minute expiration

?>
<script>
AWS.config.credentials = {
    accessKeyId : '<?php echo $temp_creds['AccessKeyId']; ?>',
    secretAccessKey : '<?php echo $temp_creds['SecretAccessKey']; ?>',
    sessionToken : '<?php echo $temp_creds['SessionToken']; ?>'
};
AWS.config.region = 'your-region';
</script>

这样,您就不必透露访问权限access_key_id和secret_access_key.在设置的时间间隔后,STS生成的密钥将失效.确保遵循最佳实践,例如为长期存储的凭证创建角色受限的IAM用户.

参考号：http://docs.aws.amazon.com/aws-sdk-php/latest/class-Aws.Sts.StsClient.html#_getSessionToken

标签：secret-key,javascript,amazon-web-services,amazon-s3
来源： https://codeday.me/bug/20191009/1882469.html