Utilizing PHP to Access AWS S3 through a Proxy Server

Currently, I am attempting to retrieve the object image through a proxy server using PHP.

Below is the code I am utilizing:

 $client = new Aws\S3\S3Client([
        'version'     => 'latest',
        'region'      => 'us-east-1',
        'request.options' => array(
        'proxy' => '127.0.0.1:123'
        ),
        'credentials' => [
            'key'    => base64_decode(KEY),
            'secret' => base64_decode(SECRET)
        ]
    ]);

It appears that the code is functioning properly. However, I am uncertain about whether the proxy server is actually being utilized or not.

I have no definitive answer on this matter.

Any suggestions or insights would be greatly appreciated?

phpamazon-web-servicesamazon-s3proxy

Answer №1

I have not yet utilized a proxy with S3Client, but based on my past experiences, PHP- or Console-based applications that support proxies will typically utilize one if specified. To determine whether the proxy was indeed used in your scenario, you can try:

  • Temporarily disabling the proxy server specified in your code (if feasible) or blocking access to it using outbound firewall rules on your PHP server or inbound rules on the proxy.
  • Rerun the aforementioned code and verify if you can still connect to AWS.

Additionally, you can make use of the S3Client's stats and debug flags to gain more insights into the underlying HTTP connections. This should help you identify connections being routed through the proxy rather than directly to AWS:

$client = new Aws\S3\S3Client([
    'version'     => 'latest',
    'region'      => 'us-east-1',
    'debug'       => TRUE, // enable debug info
    'stats'       => TRUE, // enable stats
    'request.options' => array(
        'proxy' => 'http://127.0.0.1:123' // Make sure to include the protocol before the IP address
    ),
    'credentials' => [
        'key'    => base64_decode(KEY),
        'secret' => base64_decode(SECRET)
    ]
]);

// Perform an operation.
$result = $client->listBuckets();
// Check the transfer statistics.
$stats = $result['@metadata']['transferStats'];
// Display all information regarding the last transfer.
print_r($stats);

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