1 files changed, 106 insertions, 0 deletions
diff --git a/netwerk/base/nsSecCheckWrapChannel.h b/netwerk/base/nsSecCheckWrapChannel.h
new file mode 100644
index 0000000000..35300e0ea2
--- /dev/null
+++ b/netwerk/base/nsSecCheckWrapChannel.h
@@ -0,0 +1,106 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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/. */
+
+#ifndef nsSecCheckWrapChannel_h__
+#define nsSecCheckWrapChannel_h__
+
+#include "nsIHttpChannel.h"
+#include "nsIHttpChannelInternal.h"
+#include "nsIUploadChannel.h"
+#include "nsIUploadChannel2.h"
+#include "nsISecCheckWrapChannel.h"
+#include "nsIWyciwygChannel.h"
+#include "mozilla/LoadInfo.h"
+
+namespace mozilla {
+namespace net {
+
+/*
+ * The nsSecCheckWrapChannelBase wraps channels that do *not*
+ *  * provide a newChannel2() implementation
+ *  * provide get/setLoadInfo functions
+ *
+ * In order to perform security checks for channels
+ *   a) before opening the channel, and
+ *   b) after redirects
+ * we are attaching a loadinfo object to every channel which
+ * provides information about the content-type of the channel,
+ * who initiated the load, etc.
+ *
+ * Addon created channels might *not* provide that loadInfo object for
+ * some transition time before we mark the NewChannel-API as deprecated.
+ * We do not want to break those addons hence we wrap such channels
+ * using the provided wrapper in this class.
+ *
+ * Please note that the wrapper only forwards calls for
+ *  * nsIRequest
+ *  * nsIChannel
+ *  * nsIHttpChannel
+ *  * nsIHttpChannelInternal
+ *  * nsIUploadChannel
+ *  * nsIUploadChannel2
+ *
+ * In case any addon needs to query the inner channel this class
+ * provides a readonly function to query the wrapped channel.
+ *
+ */
+
+class nsSecCheckWrapChannelBase : public nsIHttpChannel
+                                , public nsIHttpChannelInternal
+                                , public nsISecCheckWrapChannel
+                                , public nsIUploadChannel
+                                , public nsIUploadChannel2
+{
+public:
+  NS_FORWARD_NSIHTTPCHANNEL(mHttpChannel->)
+  NS_FORWARD_NSIHTTPCHANNELINTERNAL(mHttpChannelInternal->)
+  NS_FORWARD_NSICHANNEL(mChannel->)
+  NS_FORWARD_NSIREQUEST(mRequest->)
+  NS_FORWARD_NSIUPLOADCHANNEL(mUploadChannel->)
+  NS_FORWARD_NSIUPLOADCHANNEL2(mUploadChannel2->)
+  NS_DECL_NSISECCHECKWRAPCHANNEL
+  NS_DECL_ISUPPORTS
+
+  explicit nsSecCheckWrapChannelBase(nsIChannel* aChannel);
+
+protected:
+  virtual ~nsSecCheckWrapChannelBase();
+
+  nsCOMPtr<nsIChannel>             mChannel;
+  // We do a QI in the constructor to set the following pointers.
+  nsCOMPtr<nsIHttpChannel>         mHttpChannel;
+  nsCOMPtr<nsIHttpChannelInternal> mHttpChannelInternal;
+  nsCOMPtr<nsIRequest>             mRequest;
+  nsCOMPtr<nsIUploadChannel>       mUploadChannel;
+  nsCOMPtr<nsIUploadChannel2>      mUploadChannel2;
+};
+
+/* We define a separate class here to make it clear that we're overriding
+ * Get/SetLoadInfo as well as AsyncOpen2() and Open2(), rather that using
+ * the forwarded implementations provided by NS_FORWARD_NSICHANNEL"
+ */
+class nsSecCheckWrapChannel : public nsSecCheckWrapChannelBase
+{
+public:
+  NS_IMETHOD GetLoadInfo(nsILoadInfo **aLoadInfo);
+  NS_IMETHOD SetLoadInfo(nsILoadInfo *aLoadInfo);
+
+  NS_IMETHOD AsyncOpen2(nsIStreamListener *aListener);
+  NS_IMETHOD Open2(nsIInputStream** aStream);
+
+  nsSecCheckWrapChannel(nsIChannel* aChannel, nsILoadInfo* aLoadInfo);
+  static already_AddRefed<nsIChannel> MaybeWrap(nsIChannel* aChannel,
+                                                nsILoadInfo* aLoadInfo);
+
+protected:
+  virtual ~nsSecCheckWrapChannel();
+
+  nsCOMPtr<nsILoadInfo> mLoadInfo;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif // nsSecCheckWrapChannel_h__