Using s3 server-side encryption with PHP - php

Question

I have decide to avail of amazons new server-side encryption with s3, however, I have run into a problem which I am unable to resolve.
I am using the s3 PHP class found here : https://github.com/tpyo/amazon-s3-php-class
I had been using this code to put objects originally (and it was working) :
S3::putObjectFile($file, $s3_bucket_name, $file_path, S3::ACL_PRIVATE,
array(),
array(
"Content-Disposition" => "attachment; filename=$filename",
"Content-Type" => "application/octet-stream"
)
);
I then did as instructed here : http://docs.amazonwebservices.com/AmazonS3/latest/API/index.html?RESTObjectPUT.html and added the 'x-amz-server-side​-encryption' request header. But now when I try to put an object it fails without error.
My new code is :
S3::putObjectFile($file, $s3_bucket_name, $file_path, S3::ACL_PRIVATE,
array(),
array(
"Content-Disposition" => "attachment; filename=$filename",
"Content-Type" => "application/octet-stream",
"x-amz-server-side​-encryption" => "AES256"
)
);
Has anybody experimented with this new feature or can anyone see an error in the code.
Cheers.

Answer 1

That header should be part of the $metaHeaders array and not $requestHeaders array.
S3::putObjectFile($file, $s3_bucket_name, $file_path, S3::ACL_PRIVATE,
array(
"x-amz-server-side​-encryption" => "AES256"
),
array(
"Content-Disposition" => "attachment; filename=$filename",
"Content-Type" => "application/octet-stream"
)
);
Here's the method definition from the docs:
putObject (mixed $input,
string $bucket,
string $uri,
[constant $acl = S3::ACL_PRIVATE],
[array $metaHeaders = array()],
[array $requestHeaders = array()])
You might also consider using the SDK for PHP?

Answer 2

We can upload files with encryption using the code following
$s3->create_object($bucket_name,$destination,array(
'acl'=>AmazonS3::ACL_PUBLIC,
'fileUpload' => $file_local,
'encryption'=>"AES256"));
And you can download latest sdk from here

Answer 3

With the official SDK:
use Aws\S3\S3Client;
$bucket = '*** Your Bucket Name ***';
$keyname = '*** Your Object Key ***';
// $filepath should be absolute path to a file on disk
$filepath = '*** Your File Path ***';
// Instantiate the client.
$s3 = S3Client::factory();
// Upload a file with server-side encryption.
$result = $s3->putObject(array(
'Bucket' => $bucket,
'Key' => $keyname,
'SourceFile' => $filepath,
'ServerSideEncryption' => 'AES256',
));
Changing Server-Side Encryption of an Existing Object (Copy Operation)
use Aws\S3\S3Client;
$sourceBucket = '*** Your Source Bucket Name ***';
$sourceKeyname = '*** Your Source Object Key ***';
$targetBucket = '*** Your Target Bucket Name ***';
$targetKeyname = '*** Your Target Object Key ***';
// Instantiate the client.
$s3 = S3Client::factory();
// Copy an object and add server-side encryption.
$result = $s3->copyObject(array(
'Bucket' => $targetBucket,
'Key' => $targetKeyname,
'CopySource' => "{$sourceBucket}/{$sourceKeyname}",
'ServerSideEncryption' => 'AES256',
));
Source: http://docs.aws.amazon.com/AmazonS3/latest/dev/SSEUsingPHPSDK.html

Answer 4

With laravel 5+ it can be done easily through filesystems.php config, you don't need to get driver or low level object.
's3' => [
'driver' => 's3',
'key' => "Your Key",
'secret' => "Your Secret",
'region' => "Bucket Region",
'bucket' => "Bucket Name",
'options' => [
'ServerSideEncryption' => 'AES256',
]
],
//Code
$disk->put("filename", "content", "public"); // will have AES for file