Bug 1738984 - Prevent NSS initialization and channel creation during shutdown r=keeler

Differential Revision: https://phabricator.services.mozilla.com/D133065

netwerk/base/nsNetUtil.cpp

@@ -9,6 +9,7 @@
 
 #include "nsNetUtil.h"
 
+#include "mozilla/AppShutdown.h"
 #include "mozilla/Atomics.h"
 #include "mozilla/BasePrincipal.h"
 #include "mozilla/Components.h"
@@ -2709,6 +2710,11 @@ void net_EnsurePSMInit() {
     return;
   }
 
+  // Avoid a late initialization
+  if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownNetTeardown)) {
+    return;
+  }
+
   MOZ_ASSERT(XRE_IsParentProcess());
   MOZ_ASSERT(NS_IsMainThread());
 

netwerk/protocol/http/nsHttpHandler.cpp

@@ -66,6 +66,7 @@
 #include "mozilla/net/SocketProcessParent.h"
 #include "mozilla/net/SocketProcessChild.h"
 #include "mozilla/ipc/URIUtils.h"
+#include "mozilla/AppShutdown.h"
 #include "mozilla/Telemetry.h"
 #include "mozilla/Unused.h"
 #include "mozilla/AntiTrackingRedirectHeuristic.h"
@@ -2059,6 +2060,11 @@ nsHttpHandler::NewProxiedChannel(nsIURI* uri, nsIProxyInfo* givenProxyInfo,
     httpChannel = new nsHttpChannel();
   }
 
+  // Avoid a late initialization
+  if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownNetTeardown)) {
+    return NS_ERROR_ILLEGAL_DURING_SHUTDOWN;
+  }
+
   return SetupChannelInternal(httpChannel, uri, givenProxyInfo,
                               proxyResolveFlags, proxyURI, aLoadInfo, result);
 }

security/manager/ssl/nsNSSComponent.cpp

@@ -2246,6 +2246,11 @@ nsresult nsNSSComponent::Init() {
     return NS_ERROR_NOT_AVAILABLE;
   }
 
+  // Avoid a late initialization
+  if (AppShutdown::IsInOrBeyond(ShutdownPhase::AppShutdownNetTeardown)) {
+    return NS_ERROR_ILLEGAL_DURING_SHUTDOWN;
+  }
+
   Telemetry::AutoScalarTimer<Telemetry::ScalarID::NETWORKING_NSS_INITIALIZATION>
       timer;