I leave my Mac running 24/7, but I'm not always sitting at it.
Is there any way to tell the Mac, or Messages specifically, if my phone isn't on the local wifi subnet, don't take messages, leave them for my iPhone to pick up.
Currently, if for some reason I'm out of iMessage range but capable of receiving SMS, messages never arrive at my phone & are not re-transmitted after failing by the sender, because the system considers that handing them to my Mac is sufficient proof I saw them.
Missing jobs I was offered 6 hours ago, just because I was afk, is not a happy sight to return home to.
One option: log out of Messages on the Mac every time I leave the house…
…I'll never remember.
Edit: Logging out of iMessage on the Mac is considerably more trouble than it's worth. It generates half a dozen messages & emails to every device & account…
Best Answer
First of all, you need homebrew installed on your system. If you haven't, visit http://brew.sh for instructions, or let me know and I will try to guide you.
Then you need to install
arp-scan
. To do it, open a Terminal and typebrew install arp-scan
.Next step. Save the following script, I called
check-iphone-available.scpt
, but your can rename if you want.Replace
your-username
,your-password
andyour-iphone-mac
.your-username
must be an administrator user that can sudo on your computer.your-password
password for that user.your-iphone-mac
can be obtained on your iphone, go toSettings
->General
->About
and copyWi-Fi Address
.Give permissions:
chmod 775 check-iphone-available.scpt
.The script execute as administrator the command
arp-scan
. This command sends ARP packets to hosts on the local network and displays any responses that are received. Thegrep
command look for your iphone on the answer receive byarp-scan
. If the iphone is found, then return 1, otherwise, return 0. On 1, the script do click on Available menu item in Messages, on 0, the same on Away (can be changed byOffline
,On the phone
, etc).So, let's do it automatically.
Go to folder
/Users/your-username/Library/LaunchAgents
and save there the following plist file. I named itcom.username.checkiphone.plist
, but again, feel free to change it.The file is pretty self-explanatory. We will launch the command
/usr/bin/osascript /Users/your-username/bin/check-iphone-available.scpt
every 60 seconds, will be launched at load, will save errors on/tmp/com.username.checkiphone-available.err
and logs on/tmp/com.username.checkiphone-available.out
.Again, replace
your-username
appropriately.Last step, tell the Mac launchd daemon to load it.
To stop the script, just replace the word
load
withunload
in the above sentence. When your restart your computer the script will be load again. To prevent it, move it to another folder.