Add local rustdesk.exe support and improve installation script

RustInstall.ps1

@@ -19,6 +19,11 @@ if (-Not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdenti
     }
 }
 
+# Проверка наличия rustdesk.exe в текущей папке
+$localRustDesk = Join-Path $PSScriptRoot "rustdesk.exe"
+$rustdeskExistsLocally = Test-Path $localRustDesk
+
+if (-not $rustdeskExistsLocally) {
     # Checks for the latest version of RustDesk
     $url = 'https://www.github.com//rustdesk/rustdesk/releases/latest'
     $request = [System.Net.WebRequest]::Create($url)
@@ -26,12 +31,15 @@ $response = $request.GetResponse()
     $realTagUrl = $response.ResponseUri.OriginalString
     $RDLATEST = $realTagUrl.split('/')[-1].Trim('v')
     echo "RustDesk $RDLATEST is the latest version."
+} else {
+    $RDLATEST = "local"  # Устанавливаем фиктивную версию для локального файла
+}
 
 # Checks the version of RustDesk installed.
-$rdver = ((Get-ItemProperty  "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RustDesk\").Version)
+$rdver = ((Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\RustDesk\" -ErrorAction SilentlyContinue).Version)
 
 # Skips to inputting the configuration if the latest version of RustDesk is already installed.
-if ($rdver -eq "$RDLATEST") {
+if ($rdver -eq $RDLATEST -and -not $rustdeskExistsLocally) {
     echo "RustDesk $rdver is already installed."
     cd $env:ProgramFiles\RustDesk
     echo "Inputting configuration now."
@@ -80,6 +88,7 @@ if ($rdver -eq "$RDLATEST") {
     echo ""
     echo "..............................................."
     echo "RustDesk ID: $rustdesk_id"
+    echo "Password: $rustdesk_pw"
     echo "..............................................."
     echo ""
     echo "Press Enter to open RustDesk."
@@ -93,9 +102,16 @@ if (!(Test-Path C:\ProgramData\RustDesk)) {
 }
 
 cd C:\ProgramData\RustDesk
+
+if ($rustdeskExistsLocally) {
+    echo "Found local rustdesk.exe, using it for installation."
+    Copy-Item -Path $localRustDesk -Destination ".\rustdesk.exe" -Force
+} else {
     echo "Downloading RustDesk version $RDLATEST."
     powershell Invoke-WebRequest "https://github.com/rustdesk/rustdesk/releases/download/$RDLATEST/rustdesk-$RDLATEST-x86_64.exe" -Outfile "rustdesk.exe"
-echo "Installing RustDesk version $RDLATEST."
+}
+
+echo "Installing RustDesk."
 Start-Process .\rustdesk.exe --silent-install
 Start-Sleep -Seconds 10