[Pkg-mozext-commits] [greasemonkey] 10/25: Never ever run scripts in a chrome context window.

[David Prévot]

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taffit pushed a commit to branch master
in repository greasemonkey.

commit 908a666e768f3d143109e114c020155633fc7116
Author: Anthony Lieuallen <arantius at gmail.com>
Date:   Fri Aug 22 11:42:15 2014 -0400

    Never ever run scripts in a chrome context window.
    
    Fixes #1988
---
 components/greasemonkey.js | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/components/greasemonkey.js b/components/greasemonkey.js
index c644ca9..6f1a544 100644
--- a/components/greasemonkey.js
+++ b/components/greasemonkey.js
@@ -474,6 +474,14 @@ service.prototype.ignoreNextScript = function() {
 service.prototype.injectScripts = function(
     scripts, url, wrappedContentWin
 ) {
+  try {
+    wrappedContentWin.QueryInterface(Ci.nsIDOMChromeWindow);
+    // Never ever inject scripts into a chrome context window.
+    return;
+  } catch (e) {
+    // Ignore, it's good if we can't QI to a chrome window.
+  }
+
   var chromeWin = getChromeWinForContentWin(wrappedContentWin);
   var firebugConsole = getFirebugConsole(wrappedContentWin, chromeWin);
 

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