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55 lines
1.7 KiB
PHP
55 lines
1.7 KiB
PHP
<?php
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namespace Aws\CloudTrail;
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use Aws\S3\S3Client;
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/**
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* This class provides an easy way to read log files generated by AWS
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* CloudTrail.
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*
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* CloudTrail log files contain data about your AWS API calls and are stored in
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* Amazon S3. The log files are gzipped and contain structured data in JSON
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* format. This class will automatically ungzip and decode the data, and return
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* the data as a array of log records
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*/
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class LogFileReader
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{
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/** @var S3Client S3 client used to perform GetObject operations */
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private $s3Client;
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/**
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* @param S3Client $s3Client S3 client used to retrieve objects
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*/
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public function __construct(S3Client $s3Client)
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{
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$this->s3Client = $s3Client;
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}
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/**
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* Downloads, unzips, and reads a CloudTrail log file from Amazon S3
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*
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* @param string $s3BucketName The bucket name of the log file in Amazon S3
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* @param string $logFileKey The key of the log file in Amazon S3
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*
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* @return array
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*/
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public function read($s3BucketName, $logFileKey)
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{
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// Create a command for getting the log file object
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$command = $this->s3Client->getCommand('GetObject', [
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'Bucket' => (string) $s3BucketName,
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'Key' => (string) $logFileKey,
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'ResponseContentEncoding' => 'x-gzip'
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]);
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// Make sure gzip encoding header is sent and accepted in order to
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// inflate the response data.
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$command['@http']['headers']['Accept-Encoding'] = 'gzip';
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// Get the JSON response data and extract the log records
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$result = $this->s3Client->execute($command);
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$logData = json_decode($result['Body'], true);
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return isset($logData['Records']) ? $logData['Records'] : [];
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}
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}
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