649023 - cannot open a prompt in MCD

Status: RESOLVED WORKSFORME

Description

[Raphaël Ouazana]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; fr; rv:1.9.2.16) Gecko/20110323 Ubuntu/10.10 (maverick) Firefox/3.6.16
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.14) Gecko/20110223 Thunderbird/3.1.8

Hi,

Using MCD (aka autoconfig), it is not possible to create a prompt with the nsIPromptService. This is very useful to ask the user for its email and then get some specific parameters.
It works fine with TBird 2 but fails in TBird 3 with the following error message:
Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIPromptService.prompt]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: <unknown filename> :: _displayPrompt :: line 201"  data: no

Reproducible: Always

Steps to Reproduce:
Reproductible in Windows too, so seems to be not related to #400810 

1. Configure MCD, see https://developer.mozilla.org/en/MCD for example.
2. Try to open a prompt (or an other window anyway) in the autoconfig.js file:
const promptService = Components.classes["@mozilla.org/embedcomp/prompt-service;1"].getService(Components.interfaces.nsIPromptService);
promptService.prompt(null, title, text, input, null, {});
Actual Results:  
The window is not opened and the following error can be caught:
Exception... "Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [nsIPromptService.prompt]"  nsresult: "0x80004005 (NS_ERROR_FAILURE)"  location: "JS frame :: <unknown filename> :: _displayPrompt :: line 201"  data: no

Expected Results:  
The prompt should be opened.

After some debugging, it seems that it is the call to sm->GetSubjectPrincipal in nsWindowWatcher.cpp:591 that is failing, but I can't see why either this call is failing or it is needed.

Regards,
Raphaël Ouazana.

Comment 1

[Boris Zbarsky [:bzbarsky, bz on IRC]]

GetSubjectPrincipal is needed to give the new window the right security context, in general.

I wouldn't expect it to fail if the window open comes from JavaScript.  But maybe something in the MCD code is messing with security contexts?

Comment 2

[Raphaël Ouazana]

Is there any way to explicitly define the principal in the script (eventually as anonymous)?

Comment 3

[Boris Zbarsky [:bzbarsky, bz on IRC]]

Not really, no.  If there's script on the stack, its principal should be used....

Comment 4

[Mike Kaply [:mkaply] (on PTO until Nov 5)]

I just tested this with the latest Thunderbird (and Firefox) and it is working for me.

Can you try with the latest build?

Comment 5

[Ludovic Hirlimann [:Usul]]

Raphaël ?

Comment 6

[Raphaël Ouazana]

Hi,

I am not able to test this for the moment, but a colleague will do in some weeks.

Regards,
Raphaël.

Comment 7

[Ludovic Hirlimann [:Usul]]

Removing myslef on all the bugs I'm cced on. Please NI me if you need something on MailNews Core bugs from me.

Comment 8

[Mike Kaply [:mkaply] (on PTO until Nov 5)]

This is working for me. I'm closing,