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freedbygrace
347 lines
22 KiB
PowerShell
347 lines
22 KiB
PowerShell
## Microsoft Function Naming Convention: http://msdn.microsoft.com/en-us/library/ms714428(v=vs.85).aspx
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#region Function Invoke-FileDownload
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Function Invoke-FileDownload
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{
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<#
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.SYNOPSIS
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Downloads the specified URL.
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.DESCRIPTION
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The file will only be downloaded if the last modified date of the source URL is different from the last modified date of the file that has already been downloaded or if the file have not already been downloaded.
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.PARAMETER URL
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The URL where the file is located.
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.PARAMETER Destination
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The full file path where the cabinet will be downloaded to. If not specified, a default value will be used.
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.EXAMPLE
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Invoke-FileDownload -URL 'https://dl.dell.com/catalog/DriverPackCatalog.cab' -Destination "$($Env:ProgramData)\Dell\DriverPackCatalog\DriverPackCatalog.cab" -Verbose
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.EXAMPLE
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$DownloadDetails = Invoke-FileDownload -URL 'https://dl.dell.com/catalog/DriverPackCatalog.cab' -Destination "$($Env:ProgramData)\Dell\DriverPackCatalog\DriverPackCatalog.cab" -Verbose
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Write-Output -InputObject ($DownloadDetails)
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.EXAMPLE
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$InvokeFileDownloadParameters = New-Object -TypeName 'System.Collections.Specialized.OrderedDictionary'
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$InvokeFileDownloadParameters.URL = 'https://dl.dell.com/catalog/DriverPackCatalog.cab' -As [System.URI]
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$InvokeFileDownloadParameters.Destination = "$($Env:ProgramData)\Dell\DriverPackCatalog\DriverPackCatalog.cab" -As [System.IO.FileInfo]
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$InvokeFileDownloadParameters.ContinueOnError = $False
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$InvokeFileDownloadParameters.Verbose = $True
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$InvokeFileDownloadResult = Invoke-FileDownload @InvokeFileDownloadParameters
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Write-Output -InputObject ($InvokeFileDownloadResult)
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.NOTES
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NEL : {"report_to":"network-errors","max_age":3600}
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Report-To : {"group":"network-errors","max_age":3600,"endpoints":[{"url":"https://www.dell.com/support/onlineapi/nellogger/log"}]}
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Accept-Ranges : bytes
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Content-Type : application/vnd.ms-cab-compressed
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ETag : "8043933683ddd81:0"
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Last-Modified : Tue, 11 Oct 2022 15:07:43 GMT
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Server : Microsoft-IIS/10.0
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X-Powered-By : ASP.NET
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x-arr-set : arr4
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Content-Length : 270867
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Date : Thu, 20 Oct 2022 15:51:44 GMT
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Connection : keep-alive
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Akamai-Request-BC : [a=23.207.199.174,b=78861523,c=g,n=US_VA_STERLING,o=20940]
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.LINK
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https://learn.microsoft.com/en-us/dotnet/api/system.net.webrequest?view=netframework-4.8
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.LINK
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https://learn.microsoft.com/en-us/dotnet/api/system.net.webclient.downloaddata?view=netframework-4.8#system-net-webclient-downloaddata(system-uri)
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#>
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[CmdletBinding(ConfirmImpact = 'Low', SupportsShouldProcess = $True)]
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Param
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(
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[Parameter(Mandatory=$True, ValueFromPipelineByPropertyName = $True)]
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[ValidateNotNullOrEmpty()]
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[System.URI]$URL,
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[Parameter(Mandatory=$False, ValueFromPipelineByPropertyName = $True)]
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[ValidateNotNullOrEmpty()]
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[System.IO.DirectoryInfo]$Destination,
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[Parameter(Mandatory=$False, ValueFromPipelineByPropertyName = $True)]
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[ValidateNotNullOrEmpty()]
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[ValidatePattern('^.*\.(.*)$')]
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[String]$FileName,
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[Parameter(Mandatory=$False)]
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[Switch]$ContinueOnError
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)
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Begin
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{
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Try
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{
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Switch ($True)
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{
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{([String]::IsNullOrEmpty($Destination) -eq $True) -or ([String]::IsNullOrWhiteSpace($Destination) -eq $True)}
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{
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[System.IO.DirectoryInfo]$Destination = "$($Env:Windir)\Temp"
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}
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{([String]::IsNullOrEmpty($FileName) -eq $True) -or ([String]::IsNullOrWhiteSpace($FileName) -eq $True)}
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{
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[String]$FileName = [System.IO.Path]::GetFileName($URL.OriginalString)
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}
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}
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[System.IO.FileInfo]$DestinationPath = "$($Destination.FullName)\$($FileName)"
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$DateTimeLogFormat = 'dddd, MMMM dd, yyyy @ hh:mm:ss tt' ###Monday, January 01, 2019 @ 10:15:34 AM###
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[ScriptBlock]$GetCurrentDateTimeLogFormat = {(Get-Date).ToString($DateTimeLogFormat)}
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$DateTimeMessageFormat = 'MM/dd/yyyy HH:mm:ss.FFF' ###03/23/2022 11:12:48.347###
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[ScriptBlock]$GetCurrentDateTimeMessageFormat = {(Get-Date).ToString($DateTimeMessageFormat)}
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$DateFileFormat = 'yyyyMMdd' ###20190403###
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[ScriptBlock]$GetCurrentDateFileFormat = {(Get-Date).ToString($DateFileFormat)}
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$DateTimeFileFormat = 'yyyyMMdd_HHmmss' ###20190403_115354###
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[ScriptBlock]$GetCurrentDateTimeFileFormat = {(Get-Date).ToString($DateTimeFileFormat)}
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$TextInfo = (Get-Culture).TextInfo
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$LoggingDetails = New-Object -TypeName 'System.Collections.Specialized.OrderedDictionary'
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$LoggingDetails.Add('LogMessage', $Null)
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$LoggingDetails.Add('WarningMessage', $Null)
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$LoggingDetails.Add('ErrorMessage', $Null)
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$CommonParameterList = New-Object -TypeName 'System.Collections.Generic.List[String]'
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$CommonParameterList.AddRange([System.Management.Automation.PSCmdlet]::CommonParameters)
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$CommonParameterList.AddRange([System.Management.Automation.PSCmdlet]::OptionalCommonParameters)
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[ScriptBlock]$ErrorHandlingDefinition = {
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$ErrorMessageList = New-Object -TypeName 'System.Collections.Specialized.OrderedDictionary'
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$ErrorMessageList.Add('Message', $_.Exception.Message)
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$ErrorMessageList.Add('Category', $_.Exception.ErrorRecord.FullyQualifiedErrorID)
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$ErrorMessageList.Add('Script', $_.InvocationInfo.ScriptName)
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$ErrorMessageList.Add('LineNumber', $_.InvocationInfo.ScriptLineNumber)
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$ErrorMessageList.Add('LinePosition', $_.InvocationInfo.OffsetInLine)
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$ErrorMessageList.Add('Code', $_.InvocationInfo.Line.Trim())
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ForEach ($ErrorMessage In $ErrorMessageList.GetEnumerator())
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{
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$LoggingDetails.ErrorMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - ERROR: $($ErrorMessage.Key): $($ErrorMessage.Value)"
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Write-Warning -Message ($LoggingDetails.ErrorMessage)
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}
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Switch (($ContinueOnError.IsPresent -eq $False) -or ($ContinueOnError -eq $False))
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{
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{($_ -eq $True)}
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{
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Throw
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}
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}
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}
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#Determine the date and time we executed the function
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$FunctionStartTime = (Get-Date)
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[String]$CmdletName = $MyInvocation.MyCommand.Name
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Function `'$($CmdletName)`' is beginning. Please Wait..."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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#Define Default Action Preferences
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$ErrorActionPreference = 'Stop'
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[String[]]$AvailableScriptParameters = (Get-Command -Name ($CmdletName)).Parameters.GetEnumerator() | Where-Object {($_.Value.Name -inotin $CommonParameterList)} | ForEach-Object {"-$($_.Value.Name):$($_.Value.ParameterType.Name)"}
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Available Function Parameter(s) = $($AvailableScriptParameters -Join ', ')"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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[String[]]$SuppliedScriptParameters = $PSBoundParameters.GetEnumerator() | ForEach-Object {"-$($_.Key):$($_.Value.GetType().Name)"}
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Supplied Function Parameter(s) = $($SuppliedScriptParameters -Join ', ')"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Execution of $($CmdletName) began on $($FunctionStartTime.ToString($DateTimeLogFormat))"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$OutputObjectProperties = New-Object -TypeName 'System.Collections.Specialized.OrderedDictionary'
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$OutputObjectProperties.DownloadRequired = $False
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}
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Catch
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{
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$ErrorHandlingDefinition.Invoke()
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}
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Finally
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{
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}
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}
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Process
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{
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Try
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{
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Attempting to create a web request for `"$($URL.OriginalString)`". Please Wait..."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$WebRequest = [System.Net.WebRequest]::Create($URL.OriginalString)
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$WebRequestResponse = $WebRequest.GetResponse()
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$WebRequestResponseHeaders = $WebRequestResponse.Headers
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$WebRequestHeaderProperties = New-Object -TypeName 'System.Collections.Specialized.OrderedDictionary'
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ForEach ($WebRequestResponseHeader In $WebRequestResponseHeaders.AllKeys)
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{
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$WebRequestHeaderProperties."$($WebRequestResponseHeader)" = ($WebRequestResponseHeaders.GetValues($WebRequestResponseHeader))[0]
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}
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$WebRequestHeaders = New-Object -TypeName 'PSObject' -Property ($WebRequestHeaderProperties)
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$WebRequestHeaders.'Last-Modified' = (Get-Date -Date $WebRequestHeaders.'Last-Modified').ToUniversalTime()
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$ContentLengthInMB = [System.Math]::Round(($WebRequestHeaders.'Content-Length' / 1MB), 2)
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[ScriptBlock]$ExecuteDownload = {
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$WebClient = New-Object -TypeName 'System.Net.WebClient'
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$WebClient.UseDefaultCredentials = $True
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Attempting to download data stream from `"$($URL.OriginalString)`". Please Wait..."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Download Size: $($ContentLengthInMB) MegaBytes"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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If ([System.IO.Directory]::Exists($DestinationPath.Directory.FullName) -eq $False) {$Null = [System.IO.Directory]::CreateDirectory($DestinationPath.Directory.FullName)}
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$Null = Measure-Command -Expression {$Null = $WebClient.DownloadFile($URL.OriginalString, $DestinationPath.FullName)} -OutVariable 'DownloadExecutionTimespan'
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - File download took $($Global:DownloadExecutionTimespan.Hours.ToString()) hour(s), $($Global:DownloadExecutionTimespan.Minutes.ToString()) minute(s), $($Global:DownloadExecutionTimespan.Seconds.ToString()) second(s), and $($Global:DownloadExecutionTimespan.Milliseconds.ToString()) millisecond(s)"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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[Int]$SecondsToWait = 3
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Pausing script execution for $($SecondsToWait) second(s). Please Wait..."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$Null = Start-Sleep -Seconds ($SecondsToWait)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Attempting to update the last modified date of `"$($DestinationPath.FullName)`" to match `"$($URL.OriginalString)`". Please Wait..."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Last Modified Date (Local): $($DestinationPath.LastWriteTimeUTC.ToString($DateTimeLogFormat))"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Last Modified Date (Source): $($WebRequestHeaders.'Last-Modified'.ToString($DateTimeLogFormat))"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$Null = (Get-Item -Path $DestinationPath.FullName -Force).LastWriteTimeUTC = $WebRequestHeaders.'Last-Modified'
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Try {$Null = $WebClient.Dispose()} Catch {}
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}
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Switch ([System.IO.File]::Exists($DestinationPath.FullName))
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{
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{($_ -eq $True)}
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{
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Destination path `"$($DestinationPath.FullName)`" already exists."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Attempting to check the last modified date of `"$($DestinationPath.FullName)`" to see if a download is necessary."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Last Modified Date (Source): $($WebRequestHeaders.'Last-Modified'.ToString($DateTimeLogFormat))"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Last Modified Date (Local): $($DestinationPath.LastWriteTimeUTC.ToString($DateTimeLogFormat))"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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Switch (($DestinationPath.LastWriteTimeUTC -ine $WebRequestHeaders.'Last-Modified'))
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{
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{($_ -eq $True)}
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{
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$LoggingDetails.WarningMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - A redownload of `"$($URL.OriginalString)`" is necessary."
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Write-Warning -Message ($LoggingDetails.WarningMessage)
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$OutputObjectProperties.DownloadRequired = $True
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$ExecuteDownload.Invoke()
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}
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Default
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{
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - A redownload of `"$($URL.OriginalString)`" is not necessary."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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}
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}
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}
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Default
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{
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$LoggingDetails.WarningMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Destination path `"$($DestinationPath.FullName)`" does not exist."
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Write-Warning -Message ($LoggingDetails.WarningMessage)
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$LoggingDetails.WarningMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - A download of `"$($URL.OriginalString)`" is necessary."
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Write-Warning -Message ($LoggingDetails.WarningMessage)
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$OutputObjectProperties.DownloadRequired = $True
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$ExecuteDownload.Invoke()
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}
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}
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}
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Catch
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{
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$ErrorHandlingDefinition.Invoke()
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}
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Finally
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{
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Try {$Null = $WebRequestResponse.Dispose()} Catch {}
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}
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}
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End
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{
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Try
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{
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#Determine the date and time the function completed execution
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$FunctionEndTime = (Get-Date)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Execution of $($CmdletName) ended on $($FunctionEndTime.ToString($DateTimeLogFormat))"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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#Log the total script execution time
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$FunctionExecutionTimespan = New-TimeSpan -Start ($FunctionStartTime) -End ($FunctionEndTime)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Function execution took $($FunctionExecutionTimespan.Hours.ToString()) hour(s), $($FunctionExecutionTimespan.Minutes.ToString()) minute(s), $($FunctionExecutionTimespan.Seconds.ToString()) second(s), and $($FunctionExecutionTimespan.Milliseconds.ToString()) millisecond(s)"
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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$LoggingDetails.LogMessage = "$($GetCurrentDateTimeMessageFormat.Invoke()) - Function `'$($CmdletName)`' is completed."
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Write-Verbose -Message ($LoggingDetails.LogMessage)
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}
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Catch
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{
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$ErrorHandlingDefinition.Invoke()
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}
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Finally
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{
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$DestinationPathDetails = Get-Item -Path $DestinationPath.FullName -Force
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$OutputObjectProperties.DownloadPath = $DestinationPathDetails
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$OutputObjectProperties.URL = $URL
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$OutputObjectProperties.URLHeaders = $WebRequestHeaders
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$OutputObjectProperties.CompletionTimespan = $Null
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Switch ($True)
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{
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{($OutputObjectProperties.DownloadRequired -eq $True)}
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{
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$OutputObjectProperties.CompletionTimespan = $Global:DownloadExecutionTimespan
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}
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}
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$OutputObject = New-Object -TypeName 'PSObject' -Property ($OutputObjectProperties)
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Write-Output -InputObject ($OutputObject)
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}
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}
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}
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#endregion |