mavericks
cocoaDialog fix for 10.9, 10.10
22/05/15 10:27
This has been a problem for a looooong time. As of 10.9, Apple made changes to how applications are allowed to present UI outside of a logged in session.
Due to this change a stalwart of the MacAdmin tool belt, cocoaDialog (which has be unfortunately stagnant for some time), found itself unable to display a dialog during a logout. This affected a fair few people, myself included.
Today I have some good news. I somehow have managed via excessive Googling, kludging and fumbling my way around a bunch of obj-C I really didn't understand, seem to have managed to chop in some changes that allows it to work on the logout hook.
There is a discussion on jamfnation.
And my fork is here with a binary you can download. USE AT YOUR OWN RISK and feel free to fix whatever mistakes I've made.
I am not going to actively undo some of the ridiculous workarounds in Patchoo as I have some pretty massive code and workflow changes slated for Patchoo2.
cocoaDialog_3.0.999.zip
For the unbelievererers here's proof on a 10.10.3 client
Nothing up my sleeve
Due to this change a stalwart of the MacAdmin tool belt, cocoaDialog (which has be unfortunately stagnant for some time), found itself unable to display a dialog during a logout. This affected a fair few people, myself included.
Today I have some good news. I somehow have managed via excessive Googling, kludging and fumbling my way around a bunch of obj-C I really didn't understand, seem to have managed to chop in some changes that allows it to work on the logout hook.
There is a discussion on jamfnation.
And my fork is here with a binary you can download. USE AT YOUR OWN RISK and feel free to fix whatever mistakes I've made.
I am not going to actively undo some of the ridiculous workarounds in Patchoo as I have some pretty massive code and workflow changes slated for Patchoo2.
Download
cocoaDialog_3.0.999.zip
For the unbelievererers here's proof on a 10.10.3 client
#!/bin/bash
/Applications/cocoaDialog.app/Contents/MacOS/cocoaDialog msgbox \
--text "I am displaying on a logout hook on $(sw_vers | grep ProductVersion | awk '{ print $2 }')" \
--button1 "Alright, alright, all right..."
exit
Nothing up my sleeve
sudo defaults read com.apple.loginwindow LogoutHook
{
LogoutHook = "/Library/Scripts/logouthook.sh";
}
Comments
Mavericks & Yosemite Yup!
17/06/14 16:05
I love cocoaDialog, but it seems that Mavericks and Yosemite don't as much. It was always going to be a risk, relying on software that's been stagnating for 2 years without an update... if I had the smarts I'd pick it up, but I don't.
Until someone can take cocoaDialog and update it for Mavericks new security features... (as stated by Greg Neagle - apps need to do very specific things to be allowed to play outside of a logged in user session in 10.9+) ... I've shoehorned a workaround, which whilst not terribly elegant, it does the job.
Patchoo 0.9931 - https://github.com/patchoo/patchoo
It performs a fauxLogout by quitting all apps (this will break [x] Reopen on Login), then uses the ARD framework's LockScreen to prevent user interaction. It also tweaks cocoaDialog LSUIEelement and LSUIPresentation mode for the install run. This hides the Dock and Menu bar. Taddaa!
A kludgey pretty awful, but functional way to lock down whilst we perform software installations.
Grab the latest code and let me know how you go!