Question

我会尽可能短。任何人都知道如何将视频从HTML表单直接上传到AWS S3？

我找到了一个指南，但找不到合适的设置让它发挥作用。

<html>
  <head>

    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />

  </head>
  <body>

  <form action="http://sigv4examplebucket.s3.amazonaws.com/" method="post" enctype="multipart/form-data">
    Key to upload: 
    <input type="input"  name="key" value="user/user1/${filename}" /><br />
    <input type="hidden" name="acl" value="public-read" />
    <input type="hidden" name="success_action_redirect" value="http://sigv4examplebucket.s3.amazonaws.com/successful_upload.html" />
    Content-Type: 
    <input type="input"  name="Content-Type" value="image/jpeg" /><br />
    <input type="hidden" name="x-amz-meta-uuid" value="14365123651274" /> 
    <input type="hidden" name="x-amz-server-side-encryption" value="AES256" /> 
    <input type="text"   name="X-Amz-Credential" value="AKIAIOSFODNN7EXAMPLE/20151229/us-east-1/s3/aws4_request" />
    <input type="text"   name="X-Amz-Algorithm" value="AWS4-HMAC-SHA256" />
    <input type="text"   name="X-Amz-Date" value="20151229T000000Z" />

    Tags for File: 
    <input type="input"  name="x-amz-meta-tag" value="" /><br />
    <input type="hidden" name="Policy" value='<Base64-encoded policy string>' />
    <input type="hidden" name="X-Amz-Signature" value="<signature-value>" />
    File: 
    <input type="file"   name="file" /> <br />
    <!-- The elements after this will be ignored -->
    <input type="submit" name="submit" value="Upload to Amazon S3" />
  </form>

</html>

我正在使用Wordpress，所以插件允许，或者我只会使用html和php。

感谢。

Answer 1

好吧，我已经完成了与AWS的沟通，了解了你和我都有问题的指南。最后，他们承认指南存在问题，只是告诉我使用不同的方法，而不是解决我永远无法正确计算签名的情况。

他们建议的不同方法是使用AWS开发工具包自动生成签名和所有表单字段。所以这是一个基于本指南的工作版本：

https://docs.aws.amazon.com/aws-sdk-php/v3/guide/service/s3-presigned-post.html

实质上，您使用S3 SDK连接使用AWS SDK方法PostObjectV4。它返回两个数组中的所有表单值，用于填充表单。文件名与用户上传的文件名不同，它很好地混淆了文件以便他们无法通过访问公共URL来访问它，但不好的是你需要注入一些AJAX来保存提交前的文件名。

<?php
require('aws.phar');

try {
 $client = new \Aws\S3\S3Client([
  'version' => 'latest',
  'region' => 'us-east-1',
 ]);
 $bucket = <your_bucket_name>;

 // Set some defaults for form input fields
 $formInputs = ['acl' => 'public-read'];

 // Construct an array of conditions for policy
 $options = [
  ['acl' => 'public-read'],
  ['bucket' => $bucket],
  ['starts-with', '$key', 'test/'],
 ];

 // Optional: configure expiration time string
 $expires = '+2 hours';

 $postObject = new \Aws\S3\PostObjectV4($client,$bucket,$formInputs,$options,$expires);

 // Get attributes to set on an HTML form, e.g., action, method, enctype
 $formAttributes = $postObject->getFormAttributes();

 // Get form input fields. This will include anything set as a form input in
 // the constructor, the provided JSON policy, your AWS Access Key ID, and
 // an auth signature.
 $formInputs = $postObject->getFormInputs();

} catch (Exception $e) {
 echo "Error $e";
}

if ($formAttributes && $formInputs) {

 $file_key = 'test/file-'.time();
 $upload_acl = 'public-read';
?>
<html>
  <head>
    <title>S3 POST Form</title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
  </head>

  <body>
    <form id="upload_form" action="<?php echo $formAttributes['action'];?>" method="post" enctype="multipart/form-data">
      <input type="hidden" name="X-Amz-Security-Token" value="<?php echo $formInputs['X-Amz-Security-Token'];?>">
      <input type="hidden" name="acl" value="<?php echo $upload_acl;?>">
      <input type="hidden" name="key" value="<?php echo $file_key;?>">
      <input type="hidden" name="X-Amz-Credential" value="<?php echo $formInputs['X-Amz-Credential'];?>">
      <input type="hidden" name="X-Amz-Algorithm" value="<?php echo $formInputs['X-Amz-Algorithm'];?>">
      <input type="hidden" name="X-Amz-Date" value="<?php echo $formInputs['X-Amz-Date'];?>">
      <input type="hidden" name="policy" value="<?php echo $formInputs['Policy'];?>">
      <input type="hidden" name="X-Amz-Signature" value="<?php echo $formInputs['X-Amz-Signature'];?>">
      File to upload to S3:
      <input id="upload_file" name="file" type="file">
      <br>
      <input type="submit" value="Upload File to S3">
    </form>
  </body>
</html>
<?php
}

将视频从简单形式上传到AWS S3 Bucket

1 个答案: