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

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CristianD
2026-08-24 15:40:29 +01:00
parent 6778a5853f
commit 0191f39b7f
1 changed files with 123 additions and 38 deletions
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8x8_Work_Updater.ps1
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@@ -1,9 +1,8 @@
# ============================================================================== # ==============================================================================
# Script Name: 8x8_Work_Updater.ps1 # Script Name: 8x8_Work_Updater.ps1
# Description: Downloads 8x8 with a progress bar, schedules and launches an unclosable # Description: Downloads 8x8 with a progress bar, launches an unclosable HTA
# VBScript interactive countdown directly in the user session, # countdown prompt in the user's session (no X button), waits for
# waits for user confirmation or 1-hour timeout, silently installs, # user action or 1-hour timeout, installs silently, and relaunches 8x8.
# and relaunches 8x8 Work seamlessly.
# ============================================================================== # ==============================================================================
# Ensure script is running elevated # Ensure script is running elevated
@@ -16,7 +15,7 @@ Add-Type -AssemblyName System.Net.Http
$workDir = "C:\ProgramData\JCT600_8x8Update" $workDir = "C:\ProgramData\JCT600_8x8Update"
$flagFile = Join-Path $workDir "8x8_Update_Proceed.flag" $flagFile = Join-Path $workDir "8x8_Update_Proceed.flag"
$vbsScript = Join-Path $workDir "Show-8x8Prompt.vbs" $htaPromptPath = Join-Path $workDir "Show-8x8Prompt.hta"
$installerPath = Join-Path $workDir "8x8_Work_Installer.msi" $installerPath = Join-Path $workDir "8x8_Work_Installer.msi"
if (-not (Test-Path $workDir)) { if (-not (Test-Path $workDir)) {
@@ -71,45 +70,131 @@ try {
} }
# -------------------------------------------------------------------------- # --------------------------------------------------------------------------
# Step 2: Generate Persistent VBScript UI Dialog (Cannot be dismissed via X) # Step 2: Generate Unclosable HTA Countdown Dialog (No Close/X Button)
# -------------------------------------------------------------------------- # --------------------------------------------------------------------------
Write-Host "[2/4] Generating user dialog..." -ForegroundColor Cyan Write-Host "[2/4] Generating unclosable dialog..." -ForegroundColor Cyan
$vbsContent = @" $htaContent = @"
Set objShell = CreateObject("WScript.Shell") <!DOCTYPE html>
Set objFSO = CreateObject("Scripting.FileSystemObject") <html>
<head>
<title>JCT600 IT Support — 8x8 Work Update</title>
<HTA:APPLICATION
ID="o8x8Update"
APPLICATIONNAME="JCT600 8x8 Work Update"
BORDER="dialog"
BORDERSTYLE="normal"
CAPTION="yes"
CONTEXTMENU="no"
ICON=""
INNERBORDER="no"
MAXIMIZEBUTTON="no"
MINIMIZEBUTTON="no"
NAVIGABLE="no"
SCROLL="no"
SCROLLFLAT="no"
SELECTION="no"
SHOWINTASKBAR="yes"
SINGLEINSTANCE="yes"
SYSMENU="no"
WINDOWSTATE="normal"
/>
<style>
body {
background-color: #F0F2F5;
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
margin: 0;
padding: 20px;
text-align: center;
user-select: none;
}
.header {
color: #002B49;
font-size: 17px;
font-weight: bold;
margin-bottom: 8px;
}
.message {
color: #333333;
font-size: 13px;
line-height: 1.4;
margin-bottom: 15px;
}
.timer {
color: #C00000;
font-size: 32px;
font-weight: bold;
margin-bottom: 18px;
letter-spacing: 2px;
}
.btn-update {
background-color: #002B49;
color: #FFFFFF;
font-size: 14px;
font-weight: bold;
padding: 10px 32px;
border: none;
border-radius: 4px;
cursor: pointer;
}
.btn-update:hover {
background-color: #004B7D;
}
</style>
<script language="javascript">
var totalSeconds = 3600;
strMsg = "An automatic update for 8x8 Work has been scheduled by IT Support." & vbCrLf & vbCrLf & _ function initWindow() {
"Please save your active work and finish ongoing calls." & vbCrLf & vbCrLf & _ window.resizeTo(480, 270);
"Click OK to update now, or the update will proceed automatically in 60 minutes." window.moveTo((screen.width - 480) / 2, (screen.height - 270) / 2);
updateDisplay();
setInterval(tick, 1000);
}
startTime = Timer function tick() {
totalSeconds = 3600 if (totalSeconds > 0) {
totalSeconds--;
updateDisplay();
} else {
proceedUpdate();
}
}
Do function updateDisplay() {
elapsed = Timer - startTime var mins = Math.floor(totalSeconds / 60);
If elapsed < 0 Then elapsed = elapsed + 86400 ' Handle midnight rollover var secs = totalSeconds % 60;
remaining = Int(totalSeconds - elapsed) var formattedMins = mins < 10 ? "0" + mins : mins;
var formattedSecs = secs < 10 ? "0" + secs : secs;
document.getElementById("timerDisplay").innerText = formattedMins + ":" + formattedSecs;
}
If remaining <= 0 Then Exit Do function proceedUpdate() {
try {
' 64 = Information Icon, 4096 = System Modal (Always on Top) var fso = new ActiveXObject("Scripting.FileSystemObject");
intReturn = objShell.Popup(strMsg, remaining, "JCT600 IT Support - 8x8 Work Update", 64 + 4096) var file = fso.CreateTextFile("$($flagFile.Replace('\', '\\'))", true);
file.WriteLine("proceed");
' If user clicked OK (1), break loop file.Close();
If intReturn = 1 Then Exit Do } catch(e) {}
Loop window.close();
}
' Create flag file to signal main script </script>
Set objFile = objFSO.CreateTextFile("$flagFile", True) </head>
objFile.WriteLine("proceed") <body onload="initWindow()">
objFile.Close <div class="header">JCT600 — IT SUPPORT</div>
<div class="message">
An automatic update for 8x8 Work has been scheduled.<br>
Please save active work or click <b>Update Now</b> to begin.
</div>
<div class="timer" id="timerDisplay">60:00</div>
<button class="btn-update" onclick="proceedUpdate()">Update Now</button>
</body>
</html>
"@ "@
[System.IO.File]::WriteAllText($vbsScript, $vbsContent, [System.Text.Encoding]::ASCII) [System.IO.File]::WriteAllText($htaPromptPath, $htaContent, [System.Text.Encoding]::ASCII)
# -------------------------------------------------------------------------- # --------------------------------------------------------------------------
# Step 3: Launch Native Dialog inside Active User Session # Step 3: Launch Unclosable Dialog in Active User Session
# -------------------------------------------------------------------------- # --------------------------------------------------------------------------
Write-Host "[3/4] Launching prompt on logged-in user desktop..." -ForegroundColor Cyan Write-Host "[3/4] Launching prompt on logged-in user desktop..." -ForegroundColor Cyan
@@ -120,10 +205,11 @@ objFile.Close
} else { } else {
$taskName = "JCT600_8x8_UpdatePrompt" $taskName = "JCT600_8x8_UpdatePrompt"
schtasks.exe /Create /TN $taskName /TR "wscript.exe `"$vbsScript`"" /SC ONCE /ST 00:00 /IT /RU "$loggedUser" /F | Out-Null # mshta.exe runs the HTML Application natively inside the user's interactive desktop
schtasks.exe /Create /TN $taskName /TR "mshta.exe `"$htaPromptPath`"" /SC ONCE /ST 00:00 /IT /RU "$loggedUser" /F | Out-Null
schtasks.exe /Run /TN $taskName | Out-Null schtasks.exe /Run /TN $taskName | Out-Null
Write-Host "Prompt sent to $loggedUser. Waiting for user confirmation or 1-hour expiration..." -ForegroundColor Yellow Write-Host "Prompt active for $loggedUser. Waiting for user action or timer expiration..." -ForegroundColor Yellow
while (-not (Test-Path $flagFile)) { while (-not (Test-Path $flagFile)) {
Start-Sleep -Seconds 2 Start-Sleep -Seconds 2
} }
@@ -175,9 +261,8 @@ objFile.Close
if ($exePath) { if ($exePath) {
if (-not [string]::IsNullOrWhiteSpace($loggedUser)) { if (-not [string]::IsNullOrWhiteSpace($loggedUser)) {
$launchTask = "JCT600_8x8_Launch" $launchTask = "JCT600_8x8_Launch"
# Using explorer.exe inside the scheduled task ensures the UI process spawns detached into the user shell
$taskRunCmd = "explorer.exe `"$exePath`"" $taskRunCmd = "explorer.exe `"$exePath`""
schtasks.exe /Create /TN $launchTask /TR "$taskRunCmd" /SC ONCE /ST 00:00 /IT /RU "$loggedUser" /F | Out-Null schtasks.exe /Create /TN $launchTask /TR "$taskRunCmd" /SC ONCE /ST 00:00 /IT /RU "$loggedUser" /F | Out-Null
schtasks.exe /Run /TN $launchTask | Out-Null schtasks.exe /Run /TN $launchTask | Out-Null