[Greeter] SIM PIN unlock usability needs improving

[Pat McGowan]

Several bugs have been reported related to using the PIN unlock
Grouping here for review

Add feedback on failed attempts
 - The dialog tells you how many attempts you have remaining before a PUK code will be required
 - Entering the wrong PIN will result in a clear message to user of the failure and an update of the attempts remaining count

After cancelling SIM unlock, how to unlock is not obvious:
1.Insert this SIM card
2.Power on device
3. Popup SIM PIN unlock interface after power on device
4. cancel this dialog
5. Go to phone app to make a call
It is not obvious that the next step should be to drag down the indicator and use the unlock button.

the phone and messaging apps should have a shorthand button clearly visible to unlock the relevant SIM so that the user does not have to "know" to go to the indicator-network first to be able to make phonecalls or send SMS

[Olga Kemmet (olga-kemmet)]

My recommendation is that we should bring up the SIM PIN unlock screen if user tries to launch the DIALER and MESSAGING apps. This can be done additionally to the indicator access. This way a user will know instantly that there is no access to this apps without unlocking the SIM.
For the browser it might be a little different though. If the device is on WIFI the browser still can be used, if not it will require to unlock the SIM again in order to user mobile data...

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Olga Kemmet (olga-kemmet)]

The best way to indicate to the user that the SIM card(s) are locked is to bring up the unlock screen again once the dialer, messaging or any other apps requiring a SIM are launched.
The lock screen visual can be contextual for every app and user will be able to unlock the SIM(s) directly, without navigating somewhere else.
E.g. dialer: "You have to unlock your SIM(s), before you can make a phone call".

Thoughts?

[Matthew Paul Thomas (mpt)]

That seems reasonable -- it's equivalent to an e-mail program asking you for your password when you try to check for or send e-mail without the password saved.

Remember to add it to the specification, though -- currently the spec doesn't mention SIM PIN at all.

[Michael Zanetti (mzanetti)]

> The lock screen visual can be contextual for every app and user will be able
> to unlock the SIM(s) directly, without navigating somewhere else.
> E.g. dialer: "You have to unlock your SIM(s), before you can make a phone
> call".

This one sounds worrying to me... Lock screen design should *always* be the same, ideally in a way app's can't even create it. Otherwise we're gonna have password phishing attacks like crazy.

[Jussi Pakkanen (jpakkane)]

If we allow fullscreen apps (and even if we don't) there is no possible way to prevent password phishing attacks. Any app can draw a fake SIM unlock dialog that looks pixel-to-pixel identical to the real thing.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Olga Kemmet (olga-kemmet)]

The lock screen design will be the same. I updated the greeter and telephony specs accordingly.
Please see here: https://docs.google.com/a/canonical.com/document/d/1VajNkWbBH61iVixXJAmOvNGiG__GWQTMXGNOZijXWJw/edit?pli=1#heading=h.ln6fhq6elr0

and

here https://docs.google.com/a/canonical.com/document/d/1BRy9-DEXr3A1D7PHkJaXmjbe7xbRmxKkzANXuu-F6lc/edit#

[Victor Tuson Palau (vtuson)]

split the sim unlock (PIN) prompting on to a different bug, as this is a critical issue that needs fixing for rtm
https://bugs.launchpad.net/messaging-app/+bug/1371661

[kevin gunn (kgunn72)]

removing dialer app based on above

[Antti Kaijanmäki (kaijanmaki)]

> Add feedback on failed attempts
> - The dialog tells you how many attempts you have remaining before a PUK code will be required
> - Entering the wrong PIN will result in a clear message to user of the failure and an update of the attempts remaining count

These are handled in the linked branch. Will close this bug after the branch lands.

> After cancelling SIM unlock, how to unlock is not obvious:
> 1.Insert this SIM card
> 2.Power on device
> 3. Popup SIM PIN unlock interface after power on device
> 4. cancel this dialog
> 5. Go to phone app to make a call
> It is not obvious that the next step should be to drag down the indicator and use the unlock button.

Popup tracked here:
https://bugs.launchpad.net/ubuntu-rtm/+source/indicator-network/+bug/1333121

> the phone and messaging apps should have a shorthand button clearly visible to unlock the relevant SIM
> so that the user does not have to "know" to go to the indicator-network first to be able to make phonecalls or send SMS

Prompts:
https://bugs.launchpad.net/messaging-app/+bug/1371661
https://bugs.launchpad.net/indicator-network/+bug/1374082