The networkQuality Is Not Strained

[brockwalters]

I posted this in the macadmin Slack & kind of forgot to post it here...

Just a 1st crack at it, but, I put this in Self Service so users can run the networkQuality tests. 

• It gives the user the choice to run the parallel or serial test
• It shows a progress screen
• It displays the results at the end of the test in a dialog

You may need to set AppleScript PPPC exceptions but these osascript commands for the most part on recent versions of macOS should be fine without them. Enjoy!

P.S. macOS Monterey only as far as I know... Sorry.

#!/bin/zsh

filpth='/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources'
tsttyp=$(/usr/bin/osascript -e "choose from list {\"Download + Upload Speed\", \"Video Conferencing\"} with title \"Network Quality Test\" with prompt \"Please select test type to begin:\"")
case "$tsttyp" in
				  'false' ) exit ;;
'Download + Upload Speed' ) icnsnm='GenericNetworkIcon'
							option='-sv' ;;
	 'Video Conferencing' ) icnsnm='GroupIcon'
							option='-v' ;;
esac

/usr/bin/osascript -e "display dialog \"Test in progress...\n\" buttons {\"Cancel\"} with icon POSIX file \"$filpth/$icnsnm.icns\" with Title \"Network Quality Test - $tsttyp\"" &
prgpid=$!

/usr/bin/networkquality "$option" | /usr/bin/sed '/SUMMARY/d' > /private/tmp/summary.txt &
while true
do
	if [ -n "$(/bin/cat /private/tmp/summary.txt)" ]
	then
		break
	fi
	if /bin/kill -s 0 "$prgpid"
	then
		>&2 echo "waiting for networkquality..."
		/bin/sleep 3
	else
		exit
	fi
done

>&2 echo "$(/bin/cat /private/tmp/summary.txt)"
/usr/bin/osascript -e "display dialog \"$(/bin/cat /private/tmp/summary.txt)\" buttons {\"Ok\"} default button 1 with icon POSIX file \"$filpth/$icnsnm.icns\" with Title \"Network Quality Test - $tsttyp\""
/bin/rm -rf /private/tmp/summary.txt 
/bin/kill -9 "$prgpid"

[AVmcclint]

This looks very cool! I tried running it in Terminal and got the Test in Progress window, but Terminal just said 

no such file or directory: /usr/bin/networkquality

Sure enough, that file does not exist. Where can one obtain said file? 

[AVmcclint]

aaahhhhh.... it's only in Monterey. I ran it on my Monterey Mac and it does look very handy..

[brockwalters]

Yes. I kind of failed to mention that. 🙂 Sorry!

[wnetto-aix]

 This is excellent, thank you!

[donmontalvo]

Guessing it no likey proxy servers. #sigh

+1 Kudo, since I know if @brockwalters wrote it, it works. :)

[AVmcclint]

I tried the script as a policy in Self Service under Sonoma and the output is unreadable. When I run the networkquality command (not in the script) on Sonoma in Terminal, it runs and produces readable output. When I run the script in Self Service on Monterey and Ventura, it also produces readable output.  Any ideas as to what changed in Sonoma?

 

[AVmcclint]

I’m digging through it and I see that the output of the networkquality -v (verbose) command in Sonoma doesn’t have “summary”. The script’s call for sed to parse that out fails. It needs to look for the line that says “verbose” and parse that. I’ve played around with editing the script accordingly and running it locally, but I can’t seem to make it work.  I know I’m a sed/awk idiot so there’s little chance I’ll be able to fix it on my own. 

[AVmcclint]

After dancing with ChatGPT for a while to get the grammar of awk correct, I have come up with a script that will work on Monterey, Ventura, and Sonoma.  I know it's not efficient, but it works. Basically I took the core of the script and made 2 functions with it. One function is for Monterey/Ventura and the other function is for Sonoma - the difference is whether it looks for "SUMMARY" or "Verbose". After defining the functions, then it does an OS check and that will determine which function it will run. 

#!/bin/zsh
# https://community.jamf.com/t5/jamf-pro/the-networkquality-is-not-strained/td-p/254301

ventura() {
option='0'
filpth='/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources'
tsttyp=$(/usr/bin/osascript -e "choose from list {\"Download + Upload Speed\", \"Video Conferencing\"} with title \"Network Quality Test\" with prompt \"Please select test type to begin:\"")
    case "$tsttyp" in
        'false' ) exit ;;
        'Download + Upload Speed' ) icnsnm='GenericNetworkIcon'
            option='1' ;;
        'Video Conferencing' ) icnsnm='GroupIcon'
            option='2';;
    esac
    
    /usr/bin/osascript -e "display dialog \"Test in progress...\n\" buttons {\"Cancel\"} with icon POSIX file \"$filpth/$icnsnm.icns\" with Title \"Network Quality Test - $tsttyp\"" &
    prgpid=$!
    
    if [[ $option == 1 ]] ; then
        /usr/bin/networkquality -sv | /usr/bin/sed '/SUMMARY/d' > /private/tmp/summary.txt &
    else
        /usr/bin/networkquality -v | /usr/bin/sed '/SUMMARY/d' > /private/tmp/summary.txt &
    fi
    while true
    do
        if [ -n "$(/bin/cat /private/tmp/summary.txt)" ]
        then
            break
        fi
        if /bin/kill -s 0 "$prgpid"
        then
            >&2 echo "waiting for networkquality..."
            /bin/sleep 3
        else
            exit
        fi
    done
    
    result="$(/bin/cat /private/tmp/summary.txt)"
    >&2 echo "$result"
    /usr/bin/osascript -e "display dialog \"$result\" buttons {\"Ok\"} default button 1 with icon POSIX file \"$filpth/$icnsnm.icns\" with Title \"Network Quality Test - $tsttyp\""
    #/bin/rm -rf /private/tmp/summary.txt 
    /bin/kill -9 "$prgpid"
        }

    sonoma() {
        option='0'
        filpth='/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources'
        tsttyp=$(/usr/bin/osascript -e "choose from list {\"Download + Upload Speed\", \"Video Conferencing\"} with title \"Network Quality Test\" with prompt \"Please select test type to begin:\"")
            case "$tsttyp" in
                'false' ) exit ;;
                'Download + Upload Speed' ) icnsnm='GenericNetworkIcon'
                    option='1' ;;
                'Video Conferencing' ) icnsnm='GroupIcon'
                    option='2';;
            esac
            
            /usr/bin/osascript -e "display dialog \"Test in progress...\n\" buttons {\"Cancel\"} with icon POSIX file \"$filpth/$icnsnm.icns\" with Title \"Network Quality Test - $tsttyp\"" &
            prgpid=$!
            
            if [[ $option == 1 ]] ; then
                /usr/bin/networkquality -sv | awk '/Verbose/ {flag=1; next} flag;' > /private/tmp/summary.txt &
            else
                /usr/bin/networkquality -v | awk '/Verbose/ {flag=1; next} flag;' > /private/tmp/summary.txt &
            fi
            while true
            do
                if [ -n "$(/bin/cat /private/tmp/summary.txt)" ]
                then
                    break
                fi
                if /bin/kill -s 0 "$prgpid"
                then
                    >&2 echo "waiting for networkquality..."
                    /bin/sleep 3
                else
                    exit
                fi
            done
            
            result="$(/bin/cat /private/tmp/summary.txt)"
            >&2 echo "$result"
            /usr/bin/osascript -e "display dialog \"$result\" buttons {\"Ok\"} default button 1 with icon POSIX file \"$filpth/$icnsnm.icns\" with Title \"Network Quality Test - $tsttyp\""
            #/bin/rm -rf /private/tmp/summary.txt 
            /bin/kill -9 "$prgpid"
            }

########## OS check ################
# Fetch the macOS version
os_version=$(sw_vers -productVersion)

# Extract the major version number
major_version=$(echo $os_version | cut -d. -f1)

# Check the major version number and echo the corresponding message
if [ "$major_version" = "13" ]; then
        echo "running ventura command"
        ventura
elif [ "$major_version" = "12" ]; then
		echo "running ventura command"
        ventura 
elif [ "$major_version" = "14" ]; then
		echo "running sonoma command"
        sonoma
else
        echo "This version is not Ventura or Sonoma."
fi
#####################################

The output in Sonoma has more details so the window displaying the results can get kinda long, but it should still fit on your screen.

[AVmcclint]

oops... for some reason I can't edit the script here on JamfNation.  You will want to uncomment (remove the #) the two instances of 

#/bin/rm -rf /private/tmp/summary.txt

[brockwalters]

Thanks for the update! I'll take a look at it in detail.