Powershell script will now be able to automatically get the latest version from github

The function getLatest() returns an object containing the current version number and the current download link.

In addition, the parameter "-wait" had to be removed from Start-Process, as the current version (1.2.3) apparently never ends if the Rustdesk service is not ended manually. Instead, a start-sleep of 20 seconds was added.

content/self-host/client-deployment/_index.en.md

@@ -33,9 +33,55 @@ if (-Not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdenti
     }
 }
 
+# This function will return the latest version and download link as an object
+function getLatest()
+{
+    $Page = Invoke-WebRequest -Uri 'https://github.com/rustdesk/rustdesk/releases/latest' -UseBasicParsing
+    $HTML = New-Object -Com "HTMLFile"
+    try
+    {
+        $HTML.IHTMLDocument2_write($Page.Content)
+    }
+    catch
+    {
+        $src = [System.Text.Encoding]::Unicode.GetBytes($Page.Content)
+        $HTML.write($src)
+    }
+    
+    # Current example link: https://github.com/rustdesk/rustdesk/releases/download/1.2.3/rustdesk-1.2.3-x86_64.exe
+    $Downloadlink = ($HTML.Links | Where {$_.href -match '(.)+\/rustdesk\/rustdesk\/releases\/download\/\d{1}.\d{1,2}.\d{1,2}(.{0,3})\/rustdesk(.)+x86_64.exe'} | select -first 1).href
+    
+    # bugfix - sometimes you need to replace "about:"
+    $Downloadlink = $Downloadlink.Replace('about:', 'https://github.com')
+    
+    $Version = "unknown"
+    if ($Downloadlink -match './rustdesk/rustdesk/releases/download/(?<content>.*)/rustdesk-(.)+x86_64.exe')
+    {
+        $Version = $matches['content']
+    }
+
+    if ($Version -eq "unknown" -or $Downloadlink -eq "")
+    {
+        Write-Output "ERROR: Version or download link not found."
+        Exit
+    }
+
+    # Create object to return
+    $Result = New-Object PSObject -Property 
+    @{
+        Version = $Version
+        Downloadlink = $Downloadlink
+    }
+
+    return($Result)
+}
+
+$RustDeskOnGitHub = getLatest
+
+
 $rdver = ((Get-ItemProperty  "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RustDesk\").Version)
 
-if ($rdver -eq "1.2.3")
+if ($rdver -eq $RustDeskOnGitHub.Version)
 {
     Write-Output "RustDesk $rdver is the newest version"
     Exit
@@ -48,8 +94,9 @@ if (!(Test-Path C:\Temp))
 
 cd C:\Temp
 
-Invoke-WebRequest "https://github.com/rustdesk/rustdesk/releases/download/1.2.3/rustdesk-1.2.3-x86_64.exe" -Outfile "rustdesk.exe"
-Start-Process .\rustdesk.exe --silent-install -wait
+Invoke-WebRequest $RustDeskOnGitHub.Downloadlink -Outfile "rustdesk.exe"
+Start-Process .\rustdesk.exe --silent-install
+Start-Sleep -seconds 20
 
 $ServiceName = 'Rustdesk'
 $arrService = Get-Service -Name $ServiceName -ErrorAction SilentlyContinue
@@ -58,7 +105,7 @@ if ($arrService -eq $null)
 {
     Write-Output "Installing service"
     cd $env:ProgramFiles\RustDesk
-    Start-Process .\rustdesk.exe --install-service -wait -Verbose
+    Start-Process .\rustdesk.exe --install-service
     Start-Sleep -seconds 20
 }