Private/S3/Split-S3Url.ps1
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function Split-S3Url { <# .SYNOPSIS Splits an S3 URL into bucket and key .DESCRIPTION Given an S3 URL of the form https://s3-region.amazonaws.com/bucket/key returns the bucket name and key .PARAMETER S3Url URL to split .OUTPUTS [PSObject] with fields - BucketName - Key #> param ( [Parameter(Mandatory = $true, ValueFromPipeline = $true, Position = 0)] [Uri]$S3Url ) $url = $S3Url.ToString() # Weird behaviour. PowerShell -match does not match these regexes $virtualDomainRx = New-Object System.Text.RegularExpressions.Regex '^https://(?<bucket>.*?)\.s3([\.\-](?<region>[a-z]{2}-[a-z\-]+-\d))?\.amazonaws\.com/(?<key>.*)$' $pathStyleRx = New-Object System.Text.RegularExpressions.Regex '^https://s3([\.\-](?<region>[a-z]{2}-[a-z\-]+-\d))?\.amazonaws\.com/(?<bucket>.*?)/(?<key>.*)$' $m = $virtualDomainRx.Match($url) if ($m.Success) { return New-Object PSObject -Property @{ BucketName = $m.Groups["bucket"].Value Key = $m.Groups["key"].Value } } $m = $pathStyleRx.Match($url) if ($m.Success) { return New-Object PSObject -Property @{ BucketName = $m.Groups["bucket"].Value Key = $m.Groups["key"].Value } } throw "$($S3Url): Not an S3 URL" } |