PowerShell script for checking HippoEDIT version

<#
The script compares installed HippoEDIT version with the latest published on HippoEDIT web site.
If installed version is older, the information is written into Windows Log and a small information popup appears.  
 
TODO:
- add a check box, do not remind about this version
 
#>
 
Clear-Host
 
# Installed version
 
$version_installed = "0.0.0"
 
$xmlsettingsfilename = "$env:AppData\HippoEDIT\hippoedit.config"
$xmlsettings = Get-Content -LiteralPath $xmlsettingsfilename
$pattern_wholeline = "\<GENERAL\s{1,}ver\=`"(\d{1,}\.\d{1,}\.\d{1,})`""
$pattern_version = "`"(\d{1,}\.\d{1,}\.\d{1,})`""
$textmatches = $xmlsettings -match $pattern_wholeline
if ($textmatches.count -ge 1) {
	if ($textmatches[0] -match $pattern_version){
		$version_installed = $matches[1]
	}
}
 
#$xmlsettings = New-Object -TypeName XML
#$xmlsettings.Load("$env:AppData\HippoEDIT\hippoedit.config")
#$version_installed = $xmlsettings.XMLConfigSettings.GENERAL.ver
 
 
# Internet version
$url = "http://direct.hippoedit.com/api/get_repository.php"
$web_client = New-Object System.Net.WebClient
$web_contents = $web_client.DownloadString($url)
$xml_web_contents = [xml]$web_contents
$version_published = $xml_web_contents.repository.core.release.version
 
# Comparison and dumping in windows log
 
# Creating of the log is only necessary once on the same PC, so the command "New-EventLog" can be commented after initial run 
# For proper operation of the script following command shall be once executed
New-EventLog -LogName Application -Source "HippoEDIT admin scripts" -ErrorAction SilentlyContinue
 
if($version_installed -ne $version_published){
 
	Write-EventLog `
		-LogName Application `
		-Source 'HippoEDIT admin scripts' `
		-EntryType Warning `
		-EventId 27002 `
		-Message "HippoEDIT installed version [$version_installed] older then published [$version_published]. You need to install new version."
 
	Add-Type -AssemblyName System.Windows.Forms
 
	$Form = New-Object system.Windows.Forms.Form
	$Form.Text = "HippoEDIT need to be updated"
	$Form.TopMost = $true
	$Form.Width = 280
	$Form.Height = 100
 
	$lblName = New-Object system.windows.Forms.Label
	$lblName.Text = "Installed version: $version_installed"
	$lblName.AutoSize = $true
	$lblName.Width = 260
	$lblName.Height = 10
	$lblName.location = new-object system.drawing.point(20,20)
	$lblName.Font = "Courier New,9"
	$Form.controls.Add($lblName)
 
	$lblName = New-Object system.windows.Forms.Label
	$lblName.Text = "Published version: $version_published"
	$lblName.AutoSize = $true
	$lblName.Width = 260
	$lblName.Height = 10
	$lblName.location = new-object system.drawing.point(20,40)
	$lblName.Font = "Courier New,9"
	$Form.controls.Add($lblName)
 
	[void]$Form.ShowDialog()
 
} else {
 
	Write-EventLog `
		-LogName Application `
		-Source 'HippoEDIT admin scripts' `
		-EntryType Information `
		-EventId 27001 `
		-Message "HippoEDIT installed version [$version_installed] is up to date."
 
}