From 5f8de423f190bbb79a62f804151bc24824fa32d8 Mon Sep 17 00:00:00 2001
From: "Matt A. Tobin" <mattatobin@localhost.localdomain>
Date: Fri, 2 Feb 2018 04:16:08 -0500
Subject: Add m-esr52 at 52.6.0

---
 dom/fetch/ChannelInfo.cpp | 124 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 dom/fetch/ChannelInfo.cpp

(limited to 'dom/fetch/ChannelInfo.cpp')

diff --git a/dom/fetch/ChannelInfo.cpp b/dom/fetch/ChannelInfo.cpp
new file mode 100644
index 000000000..5ecc7f762
--- /dev/null
+++ b/dom/fetch/ChannelInfo.cpp
@@ -0,0 +1,124 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/dom/ChannelInfo.h"
+#include "nsCOMPtr.h"
+#include "nsContentUtils.h"
+#include "nsIChannel.h"
+#include "nsIDocument.h"
+#include "nsIHttpChannel.h"
+#include "nsSerializationHelper.h"
+#include "mozilla/net/HttpBaseChannel.h"
+#include "mozilla/ipc/ChannelInfo.h"
+#include "nsNetUtil.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+void
+ChannelInfo::InitFromDocument(nsIDocument* aDoc)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(!mInited, "Cannot initialize the object twice");
+
+  nsCOMPtr<nsISupports> securityInfo = aDoc->GetSecurityInfo();
+  if (securityInfo) {
+    SetSecurityInfo(securityInfo);
+  }
+
+  mInited = true;
+}
+
+void
+ChannelInfo::InitFromChannel(nsIChannel* aChannel)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(!mInited, "Cannot initialize the object twice");
+
+  nsCOMPtr<nsISupports> securityInfo;
+  aChannel->GetSecurityInfo(getter_AddRefs(securityInfo));
+  if (securityInfo) {
+    SetSecurityInfo(securityInfo);
+  }
+
+  mInited = true;
+}
+
+void
+ChannelInfo::InitFromChromeGlobal(nsIGlobalObject* aGlobal)
+{
+  MOZ_ASSERT(!mInited, "Cannot initialize the object twice");
+  MOZ_ASSERT(aGlobal);
+
+  MOZ_RELEASE_ASSERT(
+    nsContentUtils::IsSystemPrincipal(aGlobal->PrincipalOrNull()));
+
+  mSecurityInfo.Truncate();
+  mInited = true;
+}
+
+void
+ChannelInfo::InitFromIPCChannelInfo(const mozilla::ipc::IPCChannelInfo& aChannelInfo)
+{
+  MOZ_ASSERT(!mInited, "Cannot initialize the object twice");
+
+  mSecurityInfo = aChannelInfo.securityInfo();
+
+  mInited = true;
+}
+
+void
+ChannelInfo::SetSecurityInfo(nsISupports* aSecurityInfo)
+{
+  MOZ_ASSERT(mSecurityInfo.IsEmpty(), "security info should only be set once");
+  nsCOMPtr<nsISerializable> serializable = do_QueryInterface(aSecurityInfo);
+  if (!serializable) {
+    NS_WARNING("A non-serializable object was passed to InternalResponse::SetSecurityInfo");
+    return;
+  }
+  NS_SerializeToString(serializable, mSecurityInfo);
+}
+
+nsresult
+ChannelInfo::ResurrectInfoOnChannel(nsIChannel* aChannel)
+{
+  MOZ_ASSERT(NS_IsMainThread());
+  MOZ_ASSERT(mInited);
+
+  if (!mSecurityInfo.IsEmpty()) {
+    nsCOMPtr<nsISupports> infoObj;
+    nsresult rv = NS_DeserializeObject(mSecurityInfo, getter_AddRefs(infoObj));
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return rv;
+    }
+    nsCOMPtr<nsIHttpChannel> httpChannel =
+      do_QueryInterface(aChannel);
+    MOZ_ASSERT(httpChannel);
+    net::HttpBaseChannel* httpBaseChannel =
+      static_cast<net::HttpBaseChannel*>(httpChannel.get());
+    rv = httpBaseChannel->OverrideSecurityInfo(infoObj);
+    if (NS_WARN_IF(NS_FAILED(rv))) {
+      return rv;
+    }
+  }
+
+  return NS_OK;
+}
+
+mozilla::ipc::IPCChannelInfo
+ChannelInfo::AsIPCChannelInfo() const
+{
+  // This may be called when mInited is false, for example if we try to store
+  // a synthesized Response object into the Cache.  Uninitialized and empty
+  // ChannelInfo objects are indistinguishable at the IPC level, so this is
+  // fine.
+
+  IPCChannelInfo ipcInfo;
+
+  ipcInfo.securityInfo() = mSecurityInfo;
+
+  return ipcInfo;
+}
-- 
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