jpiperberg-downloadLatestZoom

#!/bin/bash

# Intended to be run from Jamf, but can run locally
# Downloads and installs the latest ZoomITInstaller and dynamically writes a config profile
# Only downloads if the version on disk is more than 2 days from the release date in the RSS feed.

## JAMF default parameters
# $1 -	Mount Point of target Drive
# $2 -	Computer Name
# $3 -	Username of account triggering the policy
pathToPackage=$1
targetLocation=$2
targetVolume=$3

####################################################################
### Specify the name and location of the vendor's installer file here ###
####################################################################

AppName="Zoom"
AppLocation="/Applications/zoom.us.app"
downloadURL="https://zoom.us/client/latest/ZoomInstallerIT.pkg"
Installer="/tmp/jamf/Zoom/ZoomInstallerIT.pkg"
configFile="us.zoom.config.plist"
configFileLocation="/tmp/jamf/Zoom/"
vendorUpdateURL="https://status.zoom.us/history.rss"
orgLoginURL="https://orgName.zoom.us"

if [ -e "$AppLocation" ] ;
    then
    # Check released version and creation date of application on disk to determine if we should continue.

    # sed is removing tags, and removing all whitespace
    latestReleaseDate=$(/usr/bin/curl $vendorUpdateURL | grep version -A1 | grep pubDate | sed -e 's/<pubDate>//' -e 's/<\/pubDate>//' -e 's/,//' -e 's/^ *//g')


    if [ ! -z "$latestReleaseDate" ]; then
        # If we have a release date we can compare to the version on disk to see if we need an update
        # Convert release date to easier to read format
        latestReleaseDateEpochTime=$(/bin/date -j -u -f "%a %d %b %Y %T %z" "$latestReleaseDate" "+%s")

        # Get creation date of application (we don't care about time)
        diskAppCreationDate=$(/usr/bin/stat -t "%b%d%Y" /Applications/zoom.us.app/Contents/Resources/Zoom-Info.plist | awk '{print $9}' | sed 's/\"//g') 
        
        diskAppCreationDateEpochTime=$(/bin/date -j -u -f "%b%d%Y" "$diskAppCreationDate" "+%s")

        twoDaysAhead=$(($latestReleaseDateEpochTime + 172800))
        twoDaysBehind=$(($latestReleaseDateEpochTime - 172800))

        if [ $diskAppCreationDateEpochTime -le $twoDaysAhead ] && [ $diskAppCreationDateEpochTime -ge $twoDaysBehind ]; then
            echo "date on disk within two days of release, skipping"
            exit 0;
        else
            # Need to update
            echo "version out of date"
        fi

    else
        echo "no recent releases of this product, skipping"
        exit 0;
        # Stop here, nothing to do
else
    echo "no app installed, proceeding"
fi 

# Download Application
/usr/bin/curl -L $downloadURL -o "$Installer" --create-dirs


###################################################
# If present, Remove the earlier copies of the Application from /Applications
# Start a running count of old apps we find
###################################################
OldCopy=0


# Look for current name copy of Application
if [ -e "$AppLocation" ]
    then 
        let "OldCopy=OldCopy+1"
        echo "Removing original App"
        sudo rm -Rf "$AppLocation"
        sleep 3
fi

# Report what was found when looking for older copies
if [ Oldcopy != 0 ]
    then
        # Report older name versions found
        echo "Found $OldCopy Older .app copies"
    else
        # Report no older copies found
        echo "No older named .apps found"
fi

####################################################
# if installer requires a plist or choice changes file, retrieve or create it here
####################################################

# Create config plist in install folder

/usr/libexec/PlistBuddy -c "Add :nogoogle bool true" "$configFileLocation$configFile"
/usr/libexec/PlistBuddy -c "Add :nofacebook bool true" "$configFileLocation$configFile"
/usr/libexec/PlistBuddy -c "Add :setwebdomain string $orgLoginURL" "$configFileLocation$configFile"
/usr/libexec/PlistBuddy -c "Add :ZAutoSSOLogin bool true" "$configFileLocation$configFile"
/usr/libexec/PlistBuddy -c "Add :ZSSOHost string orgName.zoom.us" "$configFileLocation$configFile"
/usr/libexec/PlistBuddy -c "Add :ZRemoteControlAllApp bool true" "$configFileLocation$configFile"

####################################################
# Run Installer
####################################################

# Install with pre-configured settings 
# https://support.zoom.us/hc/en-us/articles/115001799006-Mass-deploying-with-preconfigured-settings-for-macOS
installer -pkg /tmp/jamf/Zoom/ZoomInstallerIT.pkg -target /

# Remove install files
rm -rf /tmp/jamf/Zoom

echo "Finished! Check status messages above"

exit 0      ## Success