(PHP ActiveX) 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 ActiveX Downloads ActiveX for 32-bit and 64-bit Windows Note: The php_com_dotnet.dll may need to be enabled inside of php.ini.

<?php

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

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Http')
$http = new COM("Chilkat.Http");

$http->AwsAccessKey = 'AWS_ACCESS_KEY';
$http->AwsSecretKey = 'AWS_SECRET_KEY';
$http->S3Ssl = 1;
$http->AwsRegion = 'us-west-2';
$http->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 != 1) {
    print $http->LastErrorText . "\n";
    exit;
}

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

$jsonPath = 'qa_output/cloudTrailLog.json';
// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Gzip')
$gzip = new COM("Chilkat.Gzip");
$success = $gzip->UncompressFile($localFilePath,$jsonPath);
if ($success == 0) {
    print $gzip->LastErrorText . "\n";
    exit;
}

// For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject')
$json = new COM("Chilkat.JsonObject");
$json->LoadFile($jsonPath);
$json->EmitCompact = 0;
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"
//     }
//   ]
// }

?>