Comment 73 for bug 297301

Per our discussion on irc last night, here's some comments about this bug and where we want to go.

Firstly: due to the existing mail protocols, we do not get clear error codes and are not guaranteed specific responses (indeed they may not even be in one language) which is why we can't account for every situation and we have to play it cautiously.

UI proposal:

If we get to a situation where we think we may need to change the password, offer a dialog as follows:

Text: "Thunderbird tried contacting the server 3 times and received the following message: $MSG"
Default Button: Retry
Other Buttons: Cancel, Enter New Password

If the "Enter New Password" button is pressed, then we put up another dialog for changing the password.

Suggested Backend Implementation:

1) Look for the existing "ForgetPassword" function calls in mailnews:

http://mxr.mozilla.org/comm-central/ident?i=ForgetPassword

2) Instead of calling "ForgetPassword" throw up dialog as described above (maybe function in nsMsgUtils to do it?)

I think nsIPrompt::confirmEx can be used to do this - http://mxr.mozilla.org/comm-central/source/mozilla/netwerk/base/public/nsIPrompt.idl#100

3) Adjust the logic around the ForgetPassword calls to handle the responses.

4) For the "Enter New Password" case we can initially just use ForgetPassword as we do now, but I think a better follow-up would be to make it a change password dialog (and use nsILoginManager's modifyLogin function) - but I think this can wait if it means we get 1-3 implemented.

I've got a lot on my plate for b3, so if anyone wants to take this off me, please do, ping me on irc if there's questions about the implementation.