1 files changed, 153 insertions, 0 deletions
diff --git a/dom/base/nsHostObjectProtocolHandler.h b/dom/base/nsHostObjectProtocolHandler.h
new file mode 100644
index 000000000..3df9fc004
--- /dev/null
+++ b/dom/base/nsHostObjectProtocolHandler.h
@@ -0,0 +1,153 @@
+/* -*- 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/. */
+
+#ifndef nsHostObjectProtocolHandler_h
+#define nsHostObjectProtocolHandler_h
+
+#include "mozilla/Attributes.h"
+#include "nsIProtocolHandler.h"
+#include "nsIURI.h"
+#include "nsCOMPtr.h"
+#include "nsIInputStream.h"
+#include "nsTArray.h"
+
+#define BLOBURI_SCHEME "blob"
+#define FONTTABLEURI_SCHEME "moz-fonttable"
+#define RTSPURI_SCHEME "rtsp"
+
+class nsIPrincipal;
+
+namespace mozilla {
+class BlobURLsReporter;
+class DOMMediaStream;
+namespace dom {
+class BlobImpl;
+class BlobURLRegistrationData;
+class ContentParent;
+class MediaSource;
+} // namespace dom
+} // namespace mozilla
+
+class nsHostObjectProtocolHandler : public nsIProtocolHandler
+                                  , public nsIProtocolHandlerWithDynamicFlags
+{
+public:
+  nsHostObjectProtocolHandler();
+  NS_DECL_ISUPPORTS
+
+  // nsIProtocolHandler methods, except for GetScheme which is only defined
+  // in subclasses.
+  NS_IMETHOD GetDefaultPort(int32_t *aDefaultPort) override;
+  NS_IMETHOD GetProtocolFlags(uint32_t *aProtocolFlags) override;
+  NS_IMETHOD NewURI(const nsACString & aSpec, const char * aOriginCharset, nsIURI *aBaseURI, nsIURI * *_retval) override;
+  NS_IMETHOD NewChannel2(nsIURI *aURI, nsILoadInfo *aLoadinfo, nsIChannel * *_retval) override;
+  NS_IMETHOD NewChannel(nsIURI *aURI, nsIChannel * *_retval) override;
+  NS_IMETHOD AllowPort(int32_t port, const char * scheme, bool *_retval) override;
+
+  // nsIProtocolHandlerWithDynamicFlags methods
+  NS_IMETHOD GetFlagsForURI(nsIURI *aURI, uint32_t *aResult) override;
+
+  // If principal is not null, its origin will be used to generate the URI.
+  static nsresult GenerateURIString(const nsACString &aScheme,
+                                    nsIPrincipal* aPrincipal,
+                                    nsACString &aUri);
+  static nsresult GenerateURIStringForBlobURL(nsIPrincipal* aPrincipal,
+                                              nsACString &aUri);
+
+  // Methods for managing uri->object mapping
+  // AddDataEntry creates the URI with the given scheme and returns it in aUri
+  static nsresult AddDataEntry(mozilla::dom::BlobImpl* aBlobImpl,
+                               nsIPrincipal* aPrincipal,
+                               nsACString& aUri);
+  static nsresult AddDataEntry(mozilla::DOMMediaStream* aMediaStream,
+                               nsIPrincipal* aPrincipal,
+                               nsACString& aUri);
+  static nsresult AddDataEntry(mozilla::dom::MediaSource* aMediaSource,
+                               nsIPrincipal* aPrincipal,
+                               nsACString& aUri);
+  // IPC only
+  static nsresult AddDataEntry(const nsACString& aURI,
+                               nsIPrincipal* aPrincipal,
+                               mozilla::dom::BlobImpl* aBlobImpl);
+
+  static void RemoveDataEntry(const nsACString& aUri,
+                              bool aBroadcastToOTherProcesses = true);
+
+  // This is for IPC only.
+  static void RemoveDataEntries();
+
+  static bool HasDataEntry(const nsACString& aUri);
+
+  static nsIPrincipal* GetDataEntryPrincipal(const nsACString& aUri);
+  static void Traverse(const nsACString& aUri, nsCycleCollectionTraversalCallback& aCallback);
+
+  static bool
+  GetAllBlobURLEntries(nsTArray<mozilla::dom::BlobURLRegistrationData>& aRegistrations,
+                       mozilla::dom::ContentParent* aCP);
+
+protected:
+  virtual ~nsHostObjectProtocolHandler() {}
+
+private:
+  static void Init();
+};
+
+class nsBlobProtocolHandler : public nsHostObjectProtocolHandler
+{
+public:
+  NS_IMETHOD GetProtocolFlags(uint32_t *aProtocolFlags) override;
+  NS_IMETHOD GetScheme(nsACString &result) override;
+};
+
+class nsMediaSourceProtocolHandler : public nsHostObjectProtocolHandler
+{
+public:
+  NS_IMETHOD GetScheme(nsACString &result) override;
+};
+
+class nsFontTableProtocolHandler : public nsHostObjectProtocolHandler
+{
+public:
+  NS_IMETHOD GetProtocolFlags(uint32_t *aProtocolFlags) override;
+  NS_IMETHOD GetScheme(nsACString &result) override;
+  NS_IMETHOD NewURI(const nsACString & aSpec,
+                    const char *aOriginCharset,
+                    nsIURI *aBaseURI,
+                    nsIURI **_retval) override;
+};
+
+bool IsBlobURI(nsIURI* aUri);
+bool IsMediaStreamURI(nsIURI* aUri);
+bool IsMediaSourceURI(nsIURI* aUri);
+
+inline bool IsRtspURI(nsIURI* aUri)
+{
+  bool isRtsp;
+  return NS_SUCCEEDED(aUri->SchemeIs(RTSPURI_SCHEME, &isRtsp)) && isRtsp;
+}
+
+inline bool IsFontTableURI(nsIURI* aUri)
+{
+  bool isFont;
+  return NS_SUCCEEDED(aUri->SchemeIs(FONTTABLEURI_SCHEME, &isFont)) && isFont;
+}
+
+extern nsresult
+NS_GetBlobForBlobURI(nsIURI* aURI, mozilla::dom::BlobImpl** aBlob);
+
+extern nsresult
+NS_GetBlobForBlobURISpec(const nsACString& aSpec, mozilla::dom::BlobImpl** aBlob);
+
+extern nsresult
+NS_GetStreamForBlobURI(nsIURI* aURI, nsIInputStream** aStream);
+
+extern nsresult
+NS_GetStreamForMediaStreamURI(nsIURI* aURI, mozilla::DOMMediaStream** aStream);
+
+extern nsresult
+NS_GetSourceForMediaSourceURI(nsIURI* aURI, mozilla::dom::MediaSource** aSource);
+
+#endif /* nsHostObjectProtocolHandler_h */