JCT/8x8-Work-updater
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Update 8x8_Work_Updater.ps1

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CristianD
2026-07-29 17:15:25 +01:00
parent 5070bc964f
commit 6c67d40cb2
1 changed files with 26 additions and 42 deletions
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8x8_Work_Updater.ps1
+24 -40
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@@ -1,7 +1,7 @@
# ==============================================================================
# Script Name: 8x8_Work_Updater.ps1
# Description: Downloads 8x8, injects a native user-session GUI popup,
# waits for completion/override (1-hour countdown),
# Description: Downloads 8x8, launches an interactive JCT600 GUI attached to
# the active user's session via BUILTIN\Users, waits for response,
# silently installs, relaunches 8x8 Work, and cleans up.
# ==============================================================================
@@ -11,6 +11,7 @@ if (-not ([Security.Principal.WindowsPrincipal][Security.Principal.WindowsIdenti
exit 1
}
# Use C:\ProgramData\ so standard users have full read/execute access
$workDir = "C:\ProgramData\JCT600_8x8Update"
$flagFile = Join-Path $workDir "8x8_Update_Proceed.flag"
$guiScript = Join-Path $workDir "Show-8x8UserGui.ps1"
@@ -38,7 +39,7 @@ try {
}
# --------------------------------------------------------------------------
# Step 2: Write User-Session GUI Script
# Step 2: Write User-Session GUI Script (BOM-Free UTF-8)
# --------------------------------------------------------------------------
Write-Host "[2/5] Generating user-session GUI dialog..." -ForegroundColor Cyan
@@ -146,38 +147,26 @@ $form.Dispose()
[System.IO.File]::WriteAllText($guiScript, $guiContent, $utf8NoBom)
# --------------------------------------------------------------------------
# Step 3: Launch GUI Directly into User Session via Explorer Process Trigger
# Step 3: Trigger Interactive GUI in Active User Session via BUILTIN\Users
# --------------------------------------------------------------------------
Write-Host "[3/5] Launching dialog in active user's desktop session..." -ForegroundColor Cyan
$explorerProc = Get-Process -Name explorer -ErrorAction SilentlyContinue | Select-Object -First 1
$taskName = "JCT600_8x8_Update_UserDialog"
$action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass -WindowStyle Hidden -File `"$guiScript`""
if (-not $explorerProc) {
Write-Warning "No active user explorer session found. Proceeding directly to update."
} else {
# Query active user SID from Explorer process
$userSid = (Get-CimInstance -ClassName Win32_Process -Filter "ProcessId = $($explorerProc.Id)" | Invoke-CimMethod -MethodName GetOwnerSid).Sid
Write-Host "Active Desktop SID: $userSid" -ForegroundColor Green
# Use BUILTIN\Users group principal for Entra ID / Domain compatibility
$principal = New-ScheduledTaskPrincipal -GroupId "BUILTIN\Users" -RunLevel Limited
# Spawn GUI process directly inside explorer's user context using PowerShell WMI/CIM process creation
$cmdToRun = "powershell.exe -ExecutionPolicy Bypass -WindowStyle Hidden -File `"$guiScript`""
Register-ScheduledTask -TaskName $taskName -Action $action -Principal $principal -Force | Out-Null
Start-ScheduledTask -TaskName $taskName
# Fallback to direct process invocation if user session is active
$taskName = "JCT600_8x8_Update_UserDialog"
$action = New-ScheduledTaskAction -Execute "powershell.exe" -Argument "-ExecutionPolicy Bypass -WindowStyle Hidden -File `"$guiScript`""
$trigger = New-ScheduledTaskTrigger -At (Get-Date).AddSeconds(2) -Once
$principal = New-ScheduledTaskPrincipal -UserId $userSid -LogonType Interactive -RunLevel Limited
Register-ScheduledTask -TaskName $taskName -Action $action -Trigger $trigger -Principal $principal -Force | Out-Null
Write-Host "Waiting for user dialog response or timer expiration (1 hour max)..." -ForegroundColor Yellow
while (-not (Test-Path $flagFile)) {
Start-Sleep -Seconds 2
}
Unregister-ScheduledTask -TaskName $taskName -Confirm:$false -ErrorAction SilentlyContinue
Write-Host "Waiting for user dialog response or timer expiration (1 hour max)..." -ForegroundColor Yellow
while (-not (Test-Path $flagFile)) {
Start-Sleep -Seconds 2
}
Unregister-ScheduledTask -TaskName $taskName -Confirm:$false -ErrorAction SilentlyContinue
# --------------------------------------------------------------------------
# Step 4: Close Running 8x8 Processes & Install Silently
# --------------------------------------------------------------------------
@@ -219,20 +208,15 @@ $form.Dispose()
$exePath = $possiblePaths | Where-Object { Test-Path $_ } | Select-Object -First 1
if ($exePath) {
if ($explorerProc) {
# Run 8x8 Work inside user session to avoid GPU access elevation crashes
$launchTask = "JCT600_8x8_AppLaunch"
$launchAction = New-ScheduledTaskAction -Execute "$exePath"
$launchTrigger = New-ScheduledTaskTrigger -At (Get-Date).AddSeconds(2) -Once
$launchPrincipal = New-ScheduledTaskPrincipal -UserId $userSid -LogonType Interactive -RunLevel Limited
$launchTask = "JCT600_8x8_AppLaunch"
$launchAction = New-ScheduledTaskAction -Execute "$exePath"
$launchPrincipal = New-ScheduledTaskPrincipal -GroupId "BUILTIN\Users" -RunLevel Limited
Register-ScheduledTask -TaskName $launchTask -Action $launchAction -Trigger $launchTrigger -Principal $launchPrincipal -Force | Out-Null
Start-Sleep -Seconds 4
Unregister-ScheduledTask -TaskName $launchTask -Confirm:$false -ErrorAction SilentlyContinue
Write-Host "8x8 Work launched successfully." -ForegroundColor Green
} else {
Start-Process -FilePath $exePath
}
Register-ScheduledTask -TaskName $launchTask -Action $launchAction -Principal $launchPrincipal -Force | Out-Null
Start-ScheduledTask -TaskName $launchTask
Start-Sleep -Seconds 3
Unregister-ScheduledTask -TaskName $launchTask -Confirm:$false -ErrorAction SilentlyContinue
Write-Host "8x8 Work launched successfully." -ForegroundColor Green
} else {
Write-Warning "Could not locate 8x8 Work executable."
}