(PHP Extension) Download S3 CloudTrail Log and Un-Gzip

Demonstrates how to download a Amazon CloudTrail log from an S3 bucket. The file in this example is a .json.gz. The file is uncompressed and the JSON parsed.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// This requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

$http = new CkHttp();

$http->put_AwsAccessKey('AWS_ACCESS_KEY');
$http->put_AwsSecretKey('AWS_SECRET_KEY');
$http->put_S3Ssl(true);
$http->put_AwsRegion('us-west-2');
$http->put_AwsEndpoint('s3-us-west-2.amazonaws.com');

$bucketName = 'chilkat.logs';
$objectName = '/AWSLogs/957491831129/CloudTrail/us-west-1/2016/11/12/957491831129_CloudTrail_us-west-1_20161112T1335Z_umXfD4RxHE5nDGuI.json.gz';
$localFilePath = 'qa_output/cloudTrailLog.json.gz';

$success = $http->S3_DownloadFile($bucketName,$objectName,$localFilePath);
if ($success != true) {
    print $http->lastErrorText() . "\n";
    exit;
}

$statusCode = $http->get_LastStatus();
if ($statusCode != 200) {
    print 'Failed to download, response status code = ' . $statusCode . "\n";
    exit;
}

$jsonPath = 'qa_output/cloudTrailLog.json';
$gzip = new CkGzip();
$success = $gzip->UncompressFile($localFilePath,$jsonPath);
if ($success == false) {
    print $gzip->lastErrorText() . "\n";
    exit;
}

$json = new CkJsonObject();
$json->LoadFile($jsonPath);
$json->put_EmitCompact(false);
print $json->emit() . "\n";

// Sample JSON is shown below.
// Go to http://tools.chilkat.io/jsonParse.cshtml 
// and copy/paste the JSON into the online tool to generate parsing code.

// {
//   "Records": [
//     {
//       "eventVersion": "1.05",
//       "userIdentity": {
//         "type": "Root",
//         "principalId": "954591834127",
//         "arn": "arn:aws:iam::954591834127:root",
//         "accountId": "954591834127",
//         "accessKeyId": "ASIAJ3DEMXUXI43B6FYQ",
//         "sessionContext": {
//           "attributes": {
//             "mfaAuthenticated": "false",
//             "creationDate": "2016-11-12T13:09:31Z"
//           }
//         }
//       },
//       "eventTime": "2016-11-12T13:34:39Z",
//       "eventSource": "cloudtrail.amazonaws.com",
//       "eventName": "DescribeTrails",
//       "awsRegion": "us-west-1",
//       "sourceIPAddress": "98.228.98.57",
//       "userAgent": "console.amazonaws.com",
//       "requestParameters": {
//         "trailNameList": [
//         ]
//       },
//       "responseElements": null,
//       "requestID": "c2a0376c-a8dc-11e6-89e7-85ac5ce5ee56",
//       "eventID": "eb5afd70-dae1-41f0-82b4-91c3c936d9ba",
//       "eventType": "AwsApiCall",
//       "recipientAccountId": "954591834127"
//     }
//   ]
// }

?>