upgrade to msi install and local config

Install-ESETManagementAgent.ps1

@@ -1,27 +1,30 @@
-param(
-    [Parameter(Mandatory=$true)][string]$URL
-)
+# NOTE: The $CONFIG variable must be set by the calling script
 
-# Source the Tools.ps1 script
-Function SourceTools
-{ . $([Scriptblock]::Create((New-Object Net.WebClient).DownloadString('https://dev.emberkom.com/emberkom/management-scripts/raw/branch/master/Tools.ps1'))) }
-. SourceTools
+# Create temp directory
+$TEMPDIR = '{0}eset-protect-deployment' -f (GetTempPath)
+LogMsg "Creating: ${TEMPDIR}"
+Try { New-Item -Path $TEMPDIR -ItemType Directory -Force -ErrorAction Stop }
+Catch { LogErr $_.Exception.Message ; Exit }
+
+# Write $CONFIG to install_config.ini
+Try { $CONFIG | Out-File -FilePath "${TEMPDIR}\install_config.ini" -Force -ErrorAction Stop }
+Catch { LogMsg "Cannot write configuration file! This script will exit." ; LogErr $_.Exception.Message ; Exit }
+
+# Get bitness of endpoint and set $AGENTNAME
+If ( Is64bit ) { $AGENTNAME = "agent_x64.msi" } Else { $AGENTNAME = "agent_x86.msi" }
 
 # Download the installer
-$INSTALLER = '{0}epi_win_live_installer.exe' -f (GetTempPath)
-LogMsg "Downloading ESET Management Agent live installer"
-Try { Invoke-WebRequest -Uri $URL -UseBasicParsing -OutFile $INSTALLER }
-Catch { LogErr $_.Exception.Message }
+$INSTALLER = "${TEMPDIR}\${AGENTNAME}"
+$URL = 'https://download.eset.com/com/eset/apps/business/era/agent/latest/{0}' -f $AGENTNAME
+LogMsg "Downloading ESET Management Agent"
+Download-File -URL $URL -File $INSTALLER
 
 # Install the app
 LogMsg "Installing ESET Management Agent from ""${INSTALLER}"""
-Try { Start-Process "${INSTALLER}" -ArgumentList "--silent --accepteula" -Wait }
+Try { Start-Process "msiexec.exe" -ArgumentList "/i ${INSTALLER} /qn /norestart" -Wait }
 Catch { LogErr $_.Exception.Message }
 
 # Delete the installer
-LogMsg "Deleting downloaded installer ""${INSTALLER}"""
-Try { Remove-Item -Path $INSTALLER -Force -ErrorAction SilentlyContinue }
+LogMsg "Deleting temp directory and its contents"
+Try { Remove-Item -Path $TEMPDIR -Recurse -Force -ErrorAction SilentlyContinue }
 Catch { LogErr $_.Exception.Message }
-
-# Delete this script
-Remove-Item $MyInvocation.MyCommand.Path -Force