AppManiProgramManager.psm1
# This function is to mitigate the Invoke-WebRequest error where it won't run because IE First Run Customization hasn't been done yet. Using the switch parameter UseBasicParsing would work for regular web requests, but not for Downloads Function Test-WebRequest { Param ( $URI ) # Loop until system is able to successfully invoke a web request while ($null -eq $webRequest) { try { $webRequest = Invoke-WebRequest -Uri $URI } # Catches the exception where IE first run customization has not been done yet catch [System.NotSupportedException] { Write-Host "Disabling IE First RunCustomization..." -NoNewline try { Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Internet Explorer\Main" -Name "DisableFirstRunCustomize" -Value 2 } catch { Write-Warning "The script ran into an issue: $($Error[0])" return $null } } # catches other exceptions catch { Write-Warning "The script ran into an issue: $($Error[0])" return $null } } return $webrequest } # Downloads installer Function Get-Installer { Param ( $DownloadLink, $SavePath, $FileName ) # Tests if save path is existing if (Test-Path $savePath) { # If a preferred filename is not provided, the test after the last '/' of the download link will serve as the filename of the downloaded file if ($null -eq $FileName) { $filename = $DownloadLink.Substring($DownloadLink.LastIndexOf("/") + 1) } $SavePath = $SavePath + $fileName # Downloads the file try { Invoke-WebRequest -Uri $downloadLink -OutFile $savePath } catch { Write-Warning "Unable to download installer: $($Error[0])" return $null } return $SavePath } else { Write-Warning "Download path $SavePath not existing. Please specify a valid path." return $null } } #Deletes installer Function Remove-Installer { Param ( $InstallerLocation ) # Removes a file try { Remove-Item -Path $InstallerLocation -Force -ErrorAction Stop } catch { Write-Warning "The script ran into an issue: $($Error[0])" return $null } } # Checks the registry for entries of the installed program and returns information about it Function Get-InstalledProgram { Param ( $Program ) $Apps = @() $Apps += Get-ItemProperty "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*" # 32 Bit $Apps += Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*" # 64 Bit $installedProgram = $Apps | Where-Object DisplayName -like "$Program*" return $installedProgram } # Checks the registry for entries of the isntalled service and returns information about it Function Get-InstalledService { Param ( $Program ) $RegistryPath = "HKLM:\SYSTEM\CurrentControlSet\Services\$Program" $installedService = Get-ItemProperty -Path $RegistryPath -ErrorAction SilentlyContinue return $installedService } #Installs program using a one-liner msiexec or calls the installer executable with additional arguments Function Install-Program { Param ( $InstallCommand, $Program ) try { cmd /c $InstallCommand } catch { Write-Warning "Unable to install $($Program): $($Error[0])" return $null } } Function Confirm-ProgramInstallation { Param ( $Program ) # Loops X number of times to check registry keys for the program $tries = 0 while ($tries -le 30) { $tries++ Write-Host "Verifying installation. Tries: $tries" $installedProgram = Get-InstalledProgram -Program $Program if ($null -ne $installedProgram) { return $installedProgram } Start-Sleep -s 15 } Write-Warning "Script has reached the maximum number of retries on installation verification. Please investigate for issues." return $null } Function Confirm-ServiceInstallation { Param ( $Program ) # Loops X number of times to check registry keys for the service $tries = 0 while ($tries -le 30) { $tries++ Write-Host "Verifying installation. Tries: $tries" $installedService = Get-InstalledService -Program $Program if ($null -ne $installedService) { return $installedService } Start-Sleep -s 15 } Write-Warning "Script has reached the maximum number of retries on installation verification. Please investigate for issues." return $null } # Compares current version of a program from the registry and what's on the download link. There are programs that won't have registry entries and programs that won't have their versions on the download link, so please check first before using Function Compare-Versions { Param ( $InstalledProgram, $DownloadLink, $downloadLinkRegex ) $DownloadLink -match $downloadLinkRegex | Out-Null $latestVersion = $matches[1] -replace '[.]','' $currentVersion = $($InstalledProgram.DisplayVersion) -replace '[.]','' if ($latestVersion.equals($currentVersion)) { return $false } else { return $true } } Export-ModuleMember -Function 'Test-WebRequest' Export-ModuleMember -Function 'Get-Installer' Export-ModuleMember -Function 'Remove-Installer' Export-ModuleMember -Function 'Get-InstalledProgram' Export-ModuleMember -Function 'Get-InstalledService' Export-ModuleMember -Function 'Install-Program' Export-ModuleMember -Function 'Confirm-ProgramInstallation' Export-ModuleMember -Function 'Confirm-ServiceInstallation' Export-ModuleMember -Function 'Compare-Versions' |