CoolFunctions.psm1
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<# .SYNOPSIS Resize an image using the specified scaling factor .PARAMETER Source The image to be resized .PARAMETER Destination The output path for the resized image .PARAMETER Scale The scaling factor to apply #> Function Resize-Image { [CmdletBinding()] [OutputType([void])] param ( [Parameter(ValueFromPipeline=$true,Mandatory=$true,ParameterSetName='io')] [System.IO.FileInfo[]]$Source, [Parameter()] [System.String]$Destination = $env:TEMP, [Parameter()] [System.Double]$Scale = 0.50 ) BEGIN { $ScaleTransform=New-Object System.Windows.Media.ScaleTransform($Scale,$scale) } PROCESS { foreach($item in $Source) { $ImageSource=New-Object System.Windows.Media.Imaging.BitmapImage($item.FullName) ## Open and resize the image $image = New-Object System.Windows.Media.Imaging.TransformedBitmap ($ImageSource,$ScaleTransform) ## Put it on the clipboard (just for fun) [System.Windows.Clipboard]::SetImage($image) $destinationPath=Join-Path $Destination $item.Name Write-Verbose "Creating $destinationPath" ## Write out an image file: $stream = [System.IO.File]::Open($destinationPath, "OpenOrCreate") $encoder = New-Object System.Windows.Media.Imaging.$($item.Extension.Substring(1))BitmapEncoder $encoder.Frames.Add([System.Windows.Media.Imaging.BitmapFrame]::Create($image)) $encoder.Save($stream) $stream.Dispose() } } END { } } <# .SYNOPSIS Compresses the contents of the specified folder to a Zip file .PARAMETER FileName The path to the file to be created .PARAMETER SourcePath The path of the content to compress .PARAMETER File The file to be created .PARAMETER Source The source of the content .PARAMETER Overwrite Overwrite an existing file .PARAMETER IncludeParent Include the specified folder within the archive .PARAMETER OptimalCompression Use optimal compression .PARAMETER FastestCompression Use fastest compression #> function Compress-ZipFileFromFolder { [CmdletBinding(DefaultParameterSetName='string')] param ( [Parameter(Position=0,Mandatory=$true,ParameterSetName='string')] [System.String]$FileName, [Parameter(Position=1,Mandatory=$true,ParameterSetName='string')] [System.String]$SourcePath, [Parameter(Position=0,Mandatory=$true,ParameterSetName='io')] [System.IO.FileInfo]$File, [Parameter(Position=1,Mandatory=$true,ParameterSetName='io')] [System.IO.FileSystemInfo]$Source, [Parameter(Position=2,ParameterSetName='string')] [Parameter(Position=2,ParameterSetName='io')] [Switch]$OverWrite, [Parameter(Position=3,ParameterSetName='string')] [Parameter(Position=3,ParameterSetName='io')] [bool]$IncludeParent=$true, [Parameter(Position=4,ParameterSetName='string')] [Parameter(Position=4,ParameterSetName='io')] [bool]$OptimalCompression=$true, [Parameter(Position=5,ParameterSetName='string')] [Parameter(Position=5,ParameterSetName='io')] [Switch]$FastestCompression ) $Parent=$false if($IncludeParent) { Write-Debug "New-ZipFileFromFolder - IncludeParent Switch Specified" $Parent=$true } if($PSCmdlet.ParameterSetName -eq 'io') { $FileName=$File.FullName $SourcePath=$Source.FullName } if($OverWrite) { Write-Debug "New-ZipFileFromFolder - Overwrite Switch Specified" if(Test-Path -Path $FileName) { Write-Warning "New-ZipFileFromFolder - Deleting $FileName" Remove-Item -Path $FileName -Force } } if($OptimalCompression) { Write-Debug "New-ZipFileFromFolder - Overwrite Switch Specified" $CompressionLevel = [System.IO.Compression.CompressionLevel]::Optimal } [System.IO.Compression.ZipFile]::CreateFromDirectory($SourcePath,$FileName, $CompressionLevel, $Parent) Write-Verbose "New-ZipFileFromFolder - Created Zip File $FileName" } <# .SYNOPSIS Downloads a file from a URL to the specified location .PARAMETER Source The uri of the item to download .PARAMETER DownloadPath The path of the downloaded file #> Function Copy-WebFile { [CmdletBinding()] param ( [Parameter(Mandatory=$true)] [System.Uri]$Source, [Parameter()] [System.String]$DownloadPath=(Join-Path $env:USERPROFILE "Downloads") ) $FileName=Split-Path $Source.AbsolutePath -Leaf $Destination=Join-Path $DownloadPath $FileName $webclient = New-Object System.Net.WebClient $webclient.DownloadFile($Source,$Destination) } <# .SYNOPSIS Formats and indents an XmlDocument to a string .PARAMETER Xml An XmlDocument to be formatted .PARAMETER XmlString A valid string of an XML document #> Function Format-XML { [CmdletBinding(DefaultParameterSetName="dom")] Param ( [Parameter(Position=0,ValueFromPipeLine=$true,Mandatory=$true,ParameterSetName="dom")] [System.Xml.XmlDocument]$Xml, [Parameter(Position=0,ValueFromPipeLine=$true,Mandatory=$true,ParameterSetName="string")] [System.String]$XmlString ) if($PSCmdlet.ParameterSetName -eq "string") { $Xml=New-Object System.Xml.XmlDocument $Xml.LoadXml($XmlString) } $sw=New-Object System.IO.StringWriter $writer=New-Object System.Xml.XmlTextWriter($sw) $writer.Formatting = [System.Xml.Formatting]::Indented $Xml.WriteContentTo($writer) return $sw.ToString() } <# .SYNOPSIS Converts a CIDR or Prefix Length as string to a Subnet Mask .PARAMETER CIDR The CIDR or Prefix Length to convert #> Function ConvertTo-SubnetMaskFromCIDR { [CmdletBinding()] [OutputType([String])] param ( [Parameter(Mandatory=$true,ValueFromPipeline=$true)] [String] $CIDR ) $NetMask="0.0.0.0" $CIDRLength=[System.Convert]::ToInt32(($CIDR.Split('/')|Select-Object -Last 1).Trim()) Write-Debug "Converting Prefix Length $CIDRLength from input $CIDR" switch ($CIDRLength) { {$_ -gt 0 -and $_ -lt 8} { $binary="$( "1" * $CIDRLength)".PadRight(8,"0") $o1 = [System.Convert]::ToInt32($binary.Trim(),2) $NetMask = "$o1.0.0.0" break } 8 {$NetMask="255.0.0.0"} {$_ -gt 8 -and $_ -lt 16} { $binary="$( "1" * ($CIDRLength - 8))".PadRight(8,"0") $o2 = [System.Convert]::ToInt32($binary.Trim(),2) $NetMask = "255.$o2.0.0" break } 16 {$NetMask="255.255.0.0"} {$_ -gt 16 -and $_ -lt 24} { $binary="$("1" * ($CIDRLength - 16))".PadRight(8,"0") $o3 = [System.Convert]::ToInt32($binary.Trim(),2) $NetMask = "255.255.$o3.0" break } 24 {$NetMask="255.255.255.0"} {$_ -gt 24 -and $_ -lt 32} { $binary="$("1" * ($CIDRLength - 24))".PadRight(8,"0") $o4 = [convert]::ToInt32($binary.Trim(),2) $NetMask= "255.255.255.$o4" break } 32 {$NetMask="255.255.255.255"} } return $NetMask } <# .SYNOPSIS Converts a Subnet Mask to a Prefix Length in a less than clever way .PARAMETER SubnetMask The SubnetMask to convert #> Function ConvertTo-PrefixLengthFromSubnetMask { [CmdletBinding()] [OutputType([Int32])] param ( # Subnet Mask [ValidatePattern("\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}")] [Parameter(Mandatory=$true,ValueFromPipeline=$true)] [string] $SubnetMask ) $cLength=0 switch ($SubnetMask) { "128.0.0.0"{$cLength=1} "192.0.0.0"{$cLength=2} "224.0.0.0"{$cLength=3} "240.0.0.0"{$cLength=4} "248.0.0.0"{$cLength=5} "252.0.0.0"{$cLength=6} "254.0.0.0" {$cLength=7} "255.0.0.0"{$cLength=8} "255.128.0.0"{$cLength=9} "255.192.0.0"{$cLength=10} "255.192.0.0"{$cLength=11} "255.240.0.0"{$cLength=12} "255.248.0.0"{$cLength=13} "255.252.0.0"{$cLength=14} "255.254.0.0"{$cLength=15} "255.255.0.0"{$cLength=16} "255.255.128.0"{$cLength=17} "255.255.192.0"{$cLength=18} "255.255.224.0"{$cLength=19} "255.255.240.0"{$cLength=20} "255.255.248.0"{$cLength=21} "255.255.252.0"{$cLength=22} "255.255.254.0"{$cLength=23} "255.255.255.0"{$cLength=24} "255.255.255.128"{$cLength=25} "255.255.255.192"{$cLength=26} "255.255.255.224"{$cLength=27} "255.255.255.240"{$cLength=28} "255.255.255.248"{$cLength=29} "255.255.255.252"{$cLength=30} "255.255.255.254"{$cLength=31} "255.255.255.255"{$cLength=32} default{throw "I could not be bothered to calculate $SubnetMask's Length"} } return $cLength } <# .SYNOPSIS Copies a file with a progress stream .PARAMETER From The file to be copied .PARAMETER To The destination file .PARAMETER ToDirectory The destination directory .PARAMETER ActivityName The Progress ActivityName .PARAMETER ActivityId The Progress Activity Id .PARAMETER ParentActivityId The Parent Activity #> Function Copy-FileWithProgress { [CmdletBinding(DefaultParameterSetName='fileinfo')] param ( [Parameter(Mandatory=$true,ParameterSetName='fileinfo',ValueFromPipeline=$true)] [Parameter(Mandatory=$true,ParameterSetName='dirinfo',ValueFromPipeline=$true)] [System.IO.FileInfo] $From, [Parameter(Mandatory=$true,ParameterSetName='fileinfo')] [System.IO.FileInfo] $To, [Parameter(Mandatory=$true,ParameterSetName='dirinfo')] [System.IO.DirectoryInfo] $ToDirectory, [Parameter(Mandatory=$false,ParameterSetName='dirinfo')] [Parameter(Mandatory=$false,ParameterSetName='fileinfo')] [System.String] $ActivityName="Copying file", [Parameter(Mandatory=$false,ParameterSetName='fileinfo')] [Parameter(Mandatory=$false,ParameterSetName='dirinfo')] [System.Int32] $ActivityId=80085, [Parameter(Mandatory=$false,ParameterSetName='dirinfo')] [Parameter(Mandatory=$false,ParameterSetName='fileinfo')] [System.Int32] $ParentActivityId=0, [Parameter(Mandatory=$false,ParameterSetName='dirinfo')] [Parameter(Mandatory=$false,ParameterSetName='fileinfo')] [uint32]$BufferLength=1MB ) if($PSCmdlet.ParameterSetName -eq 'dirinfo') { if(-not $ToDirectory.Exists) { New-Item -Path $ToDirectory.Parent.FullName -Name $ToDirectory.Name -ItemType Directory -Force|Out-Null } $To=New-Object System.IO.FileInfo((Join-Path $ToDirectory.FullName $From.Name)) } $ffile = $From.OpenRead() $Tofile = $To.OpenWrite() $CurrentProgress=0 $FileSizeInMb=$From.Length/1MB $StopWatch=[System.Diagnostics.Stopwatch]::StartNew() Write-Verbose "BEGIN:Copying $From -> $To ..." Write-Progress -Id $ActivityId -Activity $ActivityName ` -ParentId $ParentActivityId ` -Status "Copying $From -> $To" ` -PercentComplete $CurrentProgress try { [System.Byte[]]$FileBuffer = New-Object System.Byte[] $BufferLength [long]$Total = [long]$ReadCount = 0 [long]$TotalCopiedInMb=0 do { $ReadCount = $ffile.Read($FileBuffer, 0, $FileBuffer.Length) $Tofile.Write($FileBuffer, 0, $ReadCount) $Total += $ReadCount $TotalCopiedInMb=$Total/1MB $CurrentSpeed=($TotalCopiedInMb/$StopWatch.Elapsed.TotalSeconds).ToString("#.##") if ($Total % 1mb -eq 0) { $CurrentProgress=[int]($TotalCopiedInMb/$FileSizeInMb * 100) Write-Progress -Id $ActivityId ` -Activity "$ActivityName %$CurrentProgress"` -ParentId $ParentActivityId ` -Status "Copying $From -> $To ($($TotalCopiedInMb.ToString("#.##")) of $($FileSizeInMb.ToString("#.##")) Mb) $($CurrentSpeed) MB/s" ` -PercentComplete $CurrentProgress } } while ($ReadCount -gt 0) Write-Progress -Id $ActivityId -Activity $ActivityName ` -ParentId $ParentActivityId ` -Status "Copying $From -> $To" ` -PercentComplete $CurrentProgress -Completed $StopWatch.Stop() Write-Verbose "END:Copy $From -> $To Took:$($StopWatch.ElapsedMilliseconds)ms. $($CurrentSpeed) MB/s" } catch [System.IO.IOException],[System.Exception] { Write-Warning "Error Copying File $_" } finally { $ffile.Dispose() $Tofile.Dispose() if($StopWatch -ne $null -and $StopWatch.IsRunning) { $StopWatch.Stop() } } } <# .SYNOPSIS Converts a Unix Timestamp to DateTime .PARAMETER UnixTime The Unix Timestamp to be converted #> Function ConvertFrom-UnixTime { [OutputType([System.DateTime])] param ( [Parameter(Mandatory=$true)] [double] $UnixTime ) $epoch = New-Object System.DateTime(1970, 1, 1, 0, 0, 0, 0) return $epoch.AddSeconds($UnixTime) } <# .SYNOPSIS Converts a DateTime to a Unix Timestamp .PARAMETER DateTime The DateTime to be converted #> Function ConvertTo-UnixTime { [OutputType([System.Double])] param ( [Parameter(Mandatory=$true)] [datetime] $DateTime ) $epoch = New-Object System.DateTime(1970, 1, 1, 0, 0, 0, 0); $delta = $DateTime - $epoch; return [Math]::Floor($delta.TotalSeconds); } |