Public/Update-cChocoExBootstrap.ps1
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<#
.SYNOPSIS Updates cChocoEX bootstrap file .DESCRIPTION Compares the provided remote Uri filehash to the local boostrap.ps1 at the well known location of $env:ProgramData\cChocoEx\bootstrap.ps1. .EXAMPLE PS C:\> Update-cChocoExBootstrap -Uri https://contoso.com/bootstrap.ps1 .INPUTS Uri: URL of the bootstrap that should be present on the local machine. .OUTPUTS PSCustomObject #> function Update-cChocoExBootstrap { param ( # URI of the bootstrap powershell script [Parameter()] [string] $Uri = $env:cChocoExBootstrapUri ) #Ensure Running as Administrator if ((Test-IsAdmin) -eq $false) { Write-Warning "This function requires elevated access, please reopen PowerShell as an Administrator" Break } #Ensure Uri is defined if ([String]::IsNullOrEmpty($Uri)) { Write-Warning "Uri Value not found, please pass as a parameter or set cChocoExBootstrapUri environment variable" Break } Write-Log -Severity 'Information' -Message "Checking for Bootstrap Updates" -NoOutput $Path = $env:cChocoExBootstrap $Updated = $false try { $wc = [System.Net.WebClient]::new() $FileHash = (Get-FileHash -Path $Path -ErrorAction SilentlyContinue).Hash $RemoteHash = (Get-FileHash -InputStream ($wc.OpenRead($Uri)) -ErrorAction SilentlyContinue).Hash } catch { $Updated = $false $ErrorMessage = $_.Exception.Message Write-Log -Severity 'Warning' -Message $ErrorMessage } if ($FileHash -ne $RemoteHash) { try { Invoke-WebRequest -UseBasicParsing -Uri $Uri -OutFile $Path $Updated = $true } catch { $Updated = $false $ErrorMessage = $_.Exception.Message Write-Log -Severity 'Warning' -Message $ErrorMessage } } $object = [PSCustomObject]@{ "Path" = $Path "Uri" = $Uri "File Hash" = $FileHash "Remote Hash" = $RemoteHash "Updated" = $Updated } Write-Log -Severity 'Information' -Message "Local Path: $Path" -NoOutput Write-Log -Severity 'Information' -Message "Uri: $Uri" -NoOutput Write-Log -Severity 'Information' -Message "File Hash: $FileHash" -NoOutput Write-Log -Severity 'Information' -Message "Remote Hash: $RemoteHash" -NoOutput Write-Log -Severity 'Information' -Message "Updated: $Updated" -NoOutput return $object } |