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(Xojo Plugin) 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 Xojo Plugin Download

Xojo Plugin for Windows, Linux, Mac OS X, and ARM

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

Dim http As New Chilkat.Http

http.AwsAccessKey = "AWS_ACCESS_KEY"
http.AwsSecretKey = "AWS_SECRET_KEY"
http.S3Ssl = True
http.AwsRegion = "us-west-2"
http.AwsEndpoint = "s3-us-west-2.amazonaws.com"

Dim bucketName As String
bucketName = "chilkat.logs"
Dim objectName As String
objectName = "/AWSLogs/957491831129/CloudTrail/us-west-1/2016/11/12/957491831129_CloudTrail_us-west-1_20161112T1335Z_umXfD4RxHE5nDGuI.json.gz"
Dim localFilePath As String
localFilePath = "qa_output/cloudTrailLog.json.gz"

Dim success As Boolean
success = http.S3_DownloadFile(bucketName,objectName,localFilePath)
If (success <> True) Then
    System.DebugLog(http.LastErrorText)
    Return
End If

Dim statusCode As Int32
statusCode = http.LastStatus
If (statusCode <> 200) Then
    System.DebugLog("Failed to download, response status code = " + Str(statusCode))
    Return
End If

Dim jsonPath As String
jsonPath = "qa_output/cloudTrailLog.json"
Dim gzip As New Chilkat.Gzip
success = gzip.UncompressFile(localFilePath,jsonPath)
If (success = False) Then
    System.DebugLog(gzip.LastErrorText)
    Return
End If

Dim json As New Chilkat.JsonObject
success = json.LoadFile(jsonPath)
json.EmitCompact = False
System.DebugLog(json.Emit())

// 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"
//     }
//   ]
// }

 

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