How to suppress / automatically dismiss error dialog in AppleScript

I have been fighting this problem on my mac mini media server for ages and believe i finally have a solution.

I have split it into two scripts:

the first one runs on idle (rather than a repeat loop) and calls a second script every 10 seconds that handles the drive mounting.

----------------------------------------------------------------------------------------"On Idle Launch Basic Drive Mounter.app"on idle    try        --script loads on startup, so first we wait 5 seconds to ensure network        delay 5        --run the mounter script which is on the desktop        run script file ":Users:localusername:Desktop:Basic Drive Mounter.app"    on error errStr number errorNumber        --listen for the apple quit command and quit        if the errorNumber is equal to -128 then            quit            return 1        --listen for the unknown error and ignore it        else if the errorNumber is equal to -5014 then            return 5        else            --all other errors are also ignored            return 5        end if    end try    --return with a wait of 5 seconds before next idle run    return 5end idle--------------------------------------------------------------------------------------

the second script does the checking of the network, then tries to mount the volume using a shell mount. i originally used a finder "mount volume" and that codes exists as comments too, but I didn't like the dialog popping up on errors; even if only for a second, so i moved on to shell script.

----------------------------------------------------------------------------------------"Basic Drive Mounter.app"try    set IP_address to "xxx.xxx.xxx.xxx"    set IP_Valid to true    try        do shell script ("ping -c 2 " & IP_address)    on error        set IP_Valid to false    end try    if IP_Valid then        tell application "Finder"            if disk "work" exists then            else                -->>shell script version                try                    do shell script "mkdir /Volumes/work"                end try                do shell script "mount_afp afp://xxx.xxx.xxx.xxx/work /Volumes/work/"                --<<shell script version                -->>finder mount volume version                --with timeout of 1 second                --  mount volume "afp://xxx.xxx.xxx.xxx/work"                --end timeout                --<<finder mount volume version            end if        end tell    end ifon error    -->>finder mount volume version    --on error finder returns an error dialog which needs to be closed to go back and  retry    --tell application "System Events"    --  keystroke return    --end tell    --<<finder mount volume version    return 0end try    --------------------------------------------------------------------------------------

not all of this is my own code, so many thanks goes out to the applescript community and google - remember to pay it forward

Apologies for the crappy answer. I think if you try something like this you won't be bothered with dialogs (but you can still have your script respond to errors).

(below is a simple version. Documentation for mount_afp with username/password is here: http://developer.apple.com/library/mac/documentation/Darwin/Reference/Manpages/man8/mount_afp.8.html )

    try        alias (POSIX file "/Volumes/yourMountedVolumeName")--hacky check for mount point    on error        --does not exist, so make dir        do shell script "mkdir /Volumes/yourMountedVolumeName"    end try    --now use do shell to mount    try        do shell script "mount_afp 'afp://yourServer/yourMountedVolumeName/' /Volumes/yourMountedVolumeName"    on error errText number errnum        log {errText, errnum}    end try

[insufficient answer below]

Some of this might be obvious, but you'll need to

killall NetAuthAgent

do shell script "killall NetAuthAgent"

Of course, you have to be careful not to kill it during the authentication process.

To mount the drives, make an apple script like this:

tell application "Finder"    try        mount volume "afp://192.168.0.0/test"    end tryend tell

Then, to close the warning message that comes up, use another script like this:

delay 2tell application "System Events"    click UI element "OK" of window 1 of application process "NetAuthAgent"end tell

The delay just gives the message box a chance to appear, but you might not need it.

If you run this last script from the terminal using osacompile then osascript, you will need to give accessibility access to the terminal.