Public/InstallUninstall/Update-CWAA.ps1
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Function Update-CWAA{ [CmdletBinding(SupportsShouldProcess=$True)] [Alias('Update-LTService')] Param( [parameter(Position=0)] [AllowNull()] [string]$Version ) Begin{ Write-Debug "Starting $($myInvocation.InvocationName) at line $(LINENUM)" Clear-Variable Svr, GoodServer, Settings -EA 0 -WhatIf:$False -Confirm:$False #Clearing Variables for use $Settings = Get-CWAAInfo -EA 0 -Verbose:$False -WhatIf:$False -Confirm:$False $updaterPath = [System.Environment]::ExpandEnvironmentVariables("%windir%\temp\_LTUpdate") $xarg=@("/o""$updaterPath""","/y") $uarg=@("""$updaterPath\Update.ini""") } Process{ if (-not ($Server)){ If ($Settings){ $Server = $Settings|Select-Object -Expand 'Server' -EA 0 } } $Server=ForEach ($Svr in $Server) {If ($Svr -notmatch 'https?://.+') {"https://$($Svr)"}; $Svr} Foreach ($Svr in $Server) { If (-not ($GoodServer)) { If ($Svr -match '^(https?://)?(([12]?[0-9]{1,2}\.){3}[12]?[0-9]{1,2}|[a-z0-9][a-z0-9_-]*(\.[a-z0-9][a-z0-9_-]*)*)$') { If ($Svr -notmatch 'https?://.+') {$Svr = "http://$($Svr)"} Try { $SvrVerCheck = "$($Svr)/Labtech/Agent.aspx" Write-Debug "Line $(LINENUM): Testing Server Response and Version: $SvrVerCheck" $SvrVer = $Script:LTServiceNetWebClient.DownloadString($SvrVerCheck) Write-Debug "Line $(LINENUM): Raw Response: $SvrVer" $SVer = $SvrVer|select-string -pattern '(?<=[|]{6})[0-9]{1,3}\.[0-9]{1,3}'|ForEach-Object {$_.matches}|Select-Object -Expand value -EA 0 If ($Null -eq ($SVer)) { Write-Verbose "Unable to test version response from $($Svr)." Continue } If ($Version -match '[1-9][0-9]{2}\.[0-9]{1,3}') { $updater = "$($Svr)/Labtech/Updates/LabtechUpdate_$($Version).zip" } ElseIf ([System.Version]$SVer -ge [System.Version]'105.001') { $Version = $SVer Write-Verbose "Using detected version ($Version) from server: $($Svr)." $updater = "$($Svr)/Labtech/Updates/LabtechUpdate_$($Version).zip" } #Kill all running processes from $updaterPath if (Test-Path $updaterPath){ $Executables = (Get-ChildItem $updaterPath -Filter *.exe -Recurse -ErrorAction SilentlyContinue|Select-Object -Expand FullName) if ($Executables) { Write-Verbose "Terminating LabTech Processes from $($updaterPath) if found running: $(($Executables) -replace [Regex]::Escape($updaterPath),'' -replace '^\\','')" Get-Process | Where-Object {$Executables -contains $_.Path } | ForEach-Object { Write-Debug "Line $(LINENUM): Terminating Process $($_.ProcessName)" $($_) | Stop-Process -Force -ErrorAction SilentlyContinue } } } #Remove $updaterPath - Depth First Removal, First by purging files, then Removing Folders, to get as much removed as possible if complete removal fails @("$updaterPath") | foreach-object { If ((Test-Path "$($_)" -EA 0)) { If ( $PSCmdlet.ShouldProcess("$($_)","Remove Folder") ) { Write-Debug "Line $(LINENUM): Removing Folder: $($_)" Try { Get-ChildItem -Path $_ -Recurse -Force -ErrorAction SilentlyContinue | Where-Object { ($_.psiscontainer) } | foreach-object { Get-ChildItem -Path "$($_.FullName)" -EA 0 | Where-Object { -not ($_.psiscontainer) } | Remove-Item -Force -ErrorAction SilentlyContinue -Confirm:$False -WhatIf:$False } Get-ChildItem -Path $_ -Recurse -Force -ErrorAction SilentlyContinue | Where-Object { ($_.psiscontainer) } | Sort-Object { $_.fullname.length } -Descending | Remove-Item -Force -ErrorAction SilentlyContinue -Recurse -Confirm:$False -WhatIf:$False Remove-Item -Recurse -Force -Path $_ -ErrorAction SilentlyContinue -Confirm:$False -WhatIf:$False } Catch {} } } } Try { If (-not (Test-Path -PathType Container -Path "$updaterPath" )){ New-Item "$updaterPath" -type directory -ErrorAction SilentlyContinue | Out-Null } $updaterTest = [System.Net.WebRequest]::Create($updater) If (($Script:LTProxy.Enabled) -eq $True) { Write-Debug "Line $(LINENUM): Proxy Configuration Needed. Applying Proxy Settings to request." $updaterTest.Proxy=$Script:LTWebProxy } $updaterTest.KeepAlive=$False $updaterTest.ProtocolVersion = '1.0' $updaterResult = $updaterTest.GetResponse() $updaterTest.Abort() If ($updaterResult.StatusCode -ne 200) { Write-Warning "WARNING: Line $(LINENUM): Unable to download LabtechUpdate.exe version $Version from server $($Svr)." Continue } Else { If ( $PSCmdlet.ShouldProcess($updater, "DownloadFile") ) { Write-Debug "Line $(LINENUM): Downloading LabtechUpdate.exe from $updater" $Script:LTServiceNetWebClient.DownloadFile($updater,"$updaterPath\LabtechUpdate.exe") If((Test-Path "$updaterPath\LabtechUpdate.exe") -and !((Get-Item "$updaterPath\LabtechUpdate.exe" -EA 0).length/1KB -gt 1234)) { Write-Warning "WARNING: Line $(LINENUM): LabtechUpdate.exe size is below normal. Removing suspected corrupt file." Remove-Item "$updaterPath\LabtechUpdate.exe" -ErrorAction SilentlyContinue -Force -Confirm:$False Continue } } If ($WhatIfPreference -eq $True) { $GoodServer = $Svr } ElseIf (Test-Path "$updaterPath\LabtechUpdate.exe") { $GoodServer = $Svr Write-Verbose "LabtechUpdate.exe downloaded successfully from server $($Svr)." } Else { Write-Warning "WARNING: Line $(LINENUM): Error encountered downloading from $($Svr). No update file was received." Continue } } } Catch { Write-Warning "WARNING: Line $(LINENUM): Error encountered downloading $updater." Continue } } Catch { Write-Warning "WARNING: Line $(LINENUM): Error encountered downloading from $($Svr)." Continue } } Else { Write-Warning "WARNING: Line $(LINENUM): Server address $($Svr) is not formatted correctly. Example: https://lt.domain.com" } } Else { Write-Debug "Line $(LINENUM): Server $($GoodServer) has been selected." Write-Verbose "Server has already been selected - Skipping $($Svr)." } } } End{ $detectedVersion = $Settings|Select-Object -Expand 'Version' -EA 0 If ($Null -eq $detectedVersion){ Write-Error "ERROR: Line $(LINENUM): No existing installation was found." -ErrorAction Stop Return } If ([System.Version]$detectedVersion -ge [System.Version]$Version) { Write-Warning "WARNING: Line $(LINENUM): Installed version detected ($detectedVersion) is higher than or equal to the requested version ($Version)." Return } If (-not ($GoodServer)) { Write-Warning "WARNING: Line $(LINENUM): No valid server was detected." Return } If ([System.Version]$SVer -gt [System.Version]$Version) { Write-Warning "WARNING: Line $(LINENUM): Server version detected ($SVer) is higher than the requested version ($Version)." Return } Try{ Stop-CWAA } Catch{ Write-Error "ERROR: Line $(LINENUM): There was an error stopping the services. $($Error[0])" Return } Write-Output "Updating Agent with the following information: Server $($GoodServer), Version $Version" Try{ If ($PSCmdlet.ShouldProcess("LabtechUpdate.exe $($xarg)", "Extracting update files")) { If ((Test-Path "$updaterPath\LabtechUpdate.exe")) { #Extract Update Files Write-Verbose "Launching LabtechUpdate Self-Extractor." Write-Debug "Line $(LINENUM): Executing Command ""LabtechUpdate.exe $($xarg)""" Try { Push-Location $updaterPath & "$updaterPath\LabtechUpdate.exe" $($xarg) 2>'' Pop-Location } Catch {Write-Output "Error calling LabtechUpdate.exe."} Start-Sleep -Seconds 5 } Else { Write-Verbose "WARNING: $updaterPath\LabtechUpdate.exe was not found." } } If ($PSCmdlet.ShouldProcess("Update.exe $($uarg)", "Launching Updater")) { If ((Test-Path "$updaterPath\Update.exe")) { #Extract Update Files Write-Verbose "Launching Labtech Updater" Write-Debug "Line $(LINENUM): Executing Command ""Update.exe $($uarg)""" Try {& "$updaterPath\Update.exe" $($uarg) 2>''} Catch {Write-Output "Error calling Update.exe."} Start-Sleep -Seconds 5 } Else { Write-Verbose "WARNING: $updaterPath\Update.exe was not found." } } } Catch{ Write-Error "ERROR: Line $(LINENUM): There was an error during the update process $($Error[0])" -ErrorAction Continue } Try{ Start-CWAA } Catch{ Write-Error "ERROR: Line $(LINENUM): There was an error starting the services. $($Error[0])" Return } If ($WhatIfPreference -ne $True) { If ($?) {} Else {$Error[0]} } Write-Debug "Exiting $($myInvocation.InvocationName) at line $(LINENUM)" } } |