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Jamf Setup - macOS Screen Saver for Carousel Cloud

Supported Devices

  • Any Mac that is running 10.15 or later and enrolled Jamf Pro

  • Jamf Pro Account

Jamf Pro Setup Instructions

Setup Script

To get started you will need to click on the GEAR in the upper right corner to go to your settings. Then click on Computer Management which will give the option to select Scripts in the above screenshot.

When you create your new Script you will be required to create a Display Name and then you will click on the Script tab and paste the script below.

#!/bin/sh

SERVER=##server##.carouselsignage.net
PLAYERID=##playerid##

# adapted from https://www.jamf.com/jamf-nation/discussions/34706/a-guide-for-custom-screen-savers

user=$(last | grep "logged in" | grep "console" | awk '{print $1}');
huuid=$(system_profiler SPHardwareDataType | awk '/Hardware UUID/ {print $3}')
ssPlist="/Users/$user/Library/Preferences/ByHost/com.apple.screensaver.$huuid.plist"
configPlist="/Users/$user/Library/Containers/com.apple.ScreenSaver.Engine.legacyScreenSaver/Data/Library/Preferences/ByHost/com.trms.Carousel-Cloud-Screensaver.$huuid.plist"
screenSaverModuleName="Carousel_Cloud"
screenSaverFileName="Carousel Cloud.saver"
screenSaverPath="/Library/Screen Savers"

mkdir -p "/Users/$user/Library/Preferences/ByHost"
mkdir -p "/Users/$user/Library/Containers/com.apple.ScreenSaver.Engine.legacyScreenSaver/Data/Library/Preferences/ByHost"
mkdir -p "$screenSaverPath"

# Download the current version of the screen saver

curl -s -o "/tmp/screenSaverFileName" https://carousel-public-files.s3.amazonaws.com/Carousel.Cloud.Screen.Saver.dmg
MNT=$(hdiutil attach "/tmp/screenSaverFileName" | egrep '^/dev/disk[0-9]*s[0-9]*' | tr '\t' ' ' | tr -s ' ')
DISKPATH=$(echo $MNT | awk '{print $1}')
MOUNTPATH=$(echo $MNT | cut -d' ' -f3-)


# check if we need to update the screen saver by comparing it to the version we downloaded

if [ -d "$screenSaverPath/$screenSaverFileName" ]; then
	MAJOR=$(/usr/libexec/PlistBuddy -c 'Print :CFBundleShortVersionString' "$screenSaverPath/$screenSaverFileName/Contents/Info.plist")
	MINOR=$(/usr/libexec/PlistBuddy -c 'Print :CFBundleVersion' "$screenSaverPath/$screenSaverFileName/Contents/Info.plist")

	NEWMAJOR=$(/usr/libexec/PlistBuddy -c 'Print :CFBundleShortVersionString' "$MOUNTPATH/$screenSaverFileName/Contents/Info.plist")
	NEWMINOR=$(/usr/libexec/PlistBuddy -c 'Print :CFBundleVersion' "$MOUNTPATH/$screenSaverFileName/Contents/Info.plist")

	if [ "$MAJOR.$MINOR" != "$NEWMAJOR.$NEWMINOR" ]; then
		ditto "$MOUNTPATH/$screenSaverFileName" "$screenSaverPath/$screenSaverFileName"
	fi
else
	# or if the screen saver isn't installed, install it
	ditto "$MOUNTPATH/$screenSaverFileName" "$screenSaverPath/$screenSaverFileName"
fi


# clean up the downloaded image

hdiutil detach $DISKPATH
rm -f "/tmp/screenSaverFileName"


# set the screen saver for the current user to the one we installed

echo "Setting screen saver for $user..."

/usr/libexec/PlistBuddy -c "Print moduleDict" $ssPlist
if [ $? -eq 1 ]; then
	/usr/libexec/PlistBuddy -c "Add :moduleDict dict" $ssPlist
fi

/usr/libexec/PlistBuddy -c "Print moduleDict:moduleName" $ssPlist
if [ $? -eq 1 ]; then
	/usr/libexec/PlistBuddy -c "Add :moduleDict:moduleName string Carousel_Cloud" $ssPlist
else
	/usr/libexec/PlistBuddy -c "Set :moduleDict:moduleName Carousel_Cloud" $ssPlist
fi

/usr/libexec/PlistBuddy -c "Print moduleDict:path" $ssPlist
if [ $? -eq 1 ]; then
	/usr/libexec/PlistBuddy -c "Add :moduleDict:path string /Library/Screen Savers/Carousel Cloud.saver" $ssPlist
else
	/usr/libexec/PlistBuddy -c "Set :moduleDict:path /Library/Screen Savers/Carousel Cloud.saver" $ssPlist
fi

chown $user "$ssPlist"


# also configure the screen saver to show the server's content

if [ -f "$configPlist" ]; then
	/usr/libexec/PlistBuddy -c "Set :siteName $SERVER" "$configPlist"
	/usr/libexec/PlistBuddy -c "Set :playerID $PLAYERID" "$configPlist"
else
	/usr/libexec/PlistBuddy -c "Add :siteName string $SERVER" "$configPlist"
	/usr/libexec/PlistBuddy -c "Add :playerID string $PLAYERID" "$configPlist"
	plutil -convert binary1 "$configPlist"
fi

killall cfprefsd

Setup Policy

The last thing you will need to set up is the Policy. You will need to go back to Computers on the top left and select Policies. When you are setting up your Policy, you will need to select a name and a Trigger that meets your organization’s needs and you will need to select the Script that we previously added. We recommend using the Startup or Login trigger because the script will download the latest version of the Screen Saver and check if it needs to be updated. Lastly, you will need to configure your Policy according to your organization's best practices.

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