Download files from AWS S3 to client system

Question

I am trying to provide download file option to my users. I am working on AWS EC2 with AWS PHP SDK V2.8 . I am able to display images on my website. I try according to question force-download-with-php-on-amazon-s3 but no success. Most of the answer of this question are pretty old. I am using below code for uploading

try {
    $result = $s3->putObject(array(
       'Bucket' => $bucketName,
       'ACL' => 'authenticated-read',
       'Key' => "s3112.png",
       'ServerSideEncryption' => 'AES256',
        'SourceFile' => $filepath,
       'ContentType' => mime_content_type($filepath),
        'debug' => [
          'logfn' => function ($msg) {
               echo $msg . "\n";
           },
            'stream_size' => 0,
           'scrub_auth' => true,
           'http' => true,
       ],
   ));
} catch (S3Exception $e) {
   echo $e->getMessage() . "\n";
}

Here is what is tried.

header('Content-disposition: attachment; filename=s3112.png');
header('Content-type: image/png');
readfile("https://s3-ap-southeast-1.amazonaws.com/mytest.sample/s3112.png");

//header("Location: https://s3-ap-southeast-1.amazonaws.com/mytest.sample/s3112.png");
//// Location redirection to a MP3 that lets the browser decide what to do.
//header("Location:  https://s3-ap-southeast-1.amazonaws.com/mytest.sample/s3112.png");

I tried with

 <a href="https://s3-ap-southeast-1.amazonaws.com/mytest.sample/s3112.png" download> 

but no success. Any help appreciate.

Answer 1

If the object has public-read access, you should just be able to link to it. You can also set read access to all objects in a bucket using a bucket policy .

You could also redirect to an S3 presigned URL of the object:

$cmd = $s3Client->getCommand('GetObject', [
    'Bucket' => 'my-bucket',
    'Key'    => 'testKey'
]);

$request = $s3Client->createPresignedRequest($cmd, '+20 minutes');

// Get the actual presigned-url
$presignedUrl = (string) $request->getUri();

header('Location: ' . $presignedUrl);