From 1b4c4256ee7705724b02919b4d432b2a391bcd04 Mon Sep 17 00:00:00 2001
From: janekptacijarabaci <janekptacijarabaci@seznam.cz>
Date: Sun, 22 Apr 2018 18:51:38 +0200
Subject: moebius#223: Consider blocking top level window data: URIs (part 1/3
 without tests)

https://github.com/MoonchildProductions/moebius/pull/223
---
 netwerk/base/nsIOService.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'netwerk/base/nsIOService.cpp')

diff --git a/netwerk/base/nsIOService.cpp b/netwerk/base/nsIOService.cpp
index 0da79c18a..8b7f31f99 100644
--- a/netwerk/base/nsIOService.cpp
+++ b/netwerk/base/nsIOService.cpp
@@ -173,6 +173,8 @@ uint32_t   nsIOService::gDefaultSegmentCount = 24;
 
 bool nsIOService::sTelemetryEnabled = false;
 
+bool nsIOService::sBlockToplevelDataUriNavigations = false;
+
 ////////////////////////////////////////////////////////////////////////////////
 
 nsIOService::nsIOService()
@@ -251,6 +253,8 @@ nsIOService::Init()
         NS_WARNING("failed to get observer service");
 
     Preferences::AddBoolVarCache(&sTelemetryEnabled, "toolkit.telemetry.enabled", false);
+    Preferences::AddBoolVarCache(&sBlockToplevelDataUriNavigations,
+                                 "security.data_uri.block_toplevel_data_uri_navigations", false);
     Preferences::AddBoolVarCache(&mOfflineMirrorsConnectivity, OFFLINE_MIRRORS_CONNECTIVITY, true);
 
     gIOService = this;
@@ -1876,5 +1880,11 @@ nsIOService::SpeculativeAnonymousConnect2(nsIURI *aURI,
     return SpeculativeConnectInternal(aURI, aPrincipal, aCallbacks, true);
 }
 
+/*static*/ bool
+nsIOService::BlockToplevelDataUriNavigations()
+{
+  return sBlockToplevelDataUriNavigations;
+}
+
 } // namespace net
 } // namespace mozilla
-- 
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