Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 94 insertions, 0 deletions

diff --git a/toolkit/components/places/PageIconProtocolHandler.h b/toolkit/components/places/PageIconProtocolHandler.h
new file mode 100644
index 0000000000..7cfeeae99b
--- /dev/null
+++ b/toolkit/components/places/PageIconProtocolHandler.h
@@ -0,0 +1,94 @@
+/* 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 mozilla_places_PageIconProtocolHandler_h
+#define mozilla_places_PageIconProtocolHandler_h
+
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/ClearOnShutdown.h"
+#include "mozilla/MozPromise.h"
+#include "mozilla/StaticPtr.h"
+#include "mozilla/net/RemoteStreamGetter.h"
+#include "nsIProtocolHandler.h"
+#include "nsThreadUtils.h"
+#include "nsWeakReference.h"
+
+namespace mozilla::places {
+
+struct FaviconMetadata;
+using FaviconMetadataPromise =
+    mozilla::MozPromise<FaviconMetadata, nsresult, false>;
+
+using net::RemoteStreamPromise;
+
+class PageIconProtocolHandler final : public nsIProtocolHandler,
+                                      public nsSupportsWeakReference {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIPROTOCOLHANDLER
+
+  static already_AddRefed<PageIconProtocolHandler> GetSingleton() {
+    MOZ_ASSERT(NS_IsMainThread());
+    if (MOZ_UNLIKELY(!sSingleton)) {
+      sSingleton = new PageIconProtocolHandler();
+      ClearOnShutdown(&sSingleton);
+    }
+    return do_AddRef(sSingleton);
+  }
+
+  /**
+   * To be called in the parent process to obtain an input stream for the
+   * given icon.
+   *
+   * @param aChildURI a page-icon URI sent from the child.
+   * @param aLoadInfo the nsILoadInfo for the load attempt from the child.
+   * @param aTerminateSender out param set to true when the params are invalid
+   *        and indicate the child should be terminated. If |aChildURI| is
+   *        not a page-icon URI, the child is in an invalid state and
+   *        should be terminated. This outparam will be set synchronously.
+   *
+   * @return RemoteStreamPromise
+   *        The RemoteStreamPromise will resolve with an RemoteStreamInfo on
+   *        success, and reject with an nsresult on failure.
+   */
+  RefPtr<RemoteStreamPromise> NewStream(nsIURI* aChildURI,
+                                        nsILoadInfo* aLoadInfo,
+                                        bool* aTerminateSender);
+
+ private:
+  ~PageIconProtocolHandler() = default;
+
+  /**
+   * This replaces the provided channel with a channel that will proxy the load
+   * to the parent process.
+   *
+   * @param aURI the page-icon: URI.
+   * @param aLoadInfo the loadinfo for the request.
+   * @param aRetVal in/out channel param referring to the channel that
+   *        might need to be substituted with a remote channel.
+   * @return NS_OK if the replacement channel was created successfully.
+   *         Otherwise, returns an error.
+   */
+  Result<Ok, nsresult> SubstituteRemoteChannel(nsIURI* aURI,
+                                               nsILoadInfo* aLoadInfo,
+                                               nsIChannel** aRetVal);
+
+  RefPtr<FaviconMetadataPromise> GetFaviconData(nsIURI* aPageIconURI,
+                                                nsILoadInfo* aLoadInfo);
+
+  nsresult NewChannelInternal(nsIURI*, nsILoadInfo*, nsIChannel**);
+
+  void GetStreams(nsIAsyncInputStream** inStream,
+                  nsIAsyncOutputStream** outStream);
+
+  // Gets a SimpleChannel that wraps the provided channel.
+  static void NewSimpleChannel(nsIURI* aURI, nsILoadInfo* aLoadinfo,
+                               mozilla::net::RemoteStreamGetter* aStreamGetter,
+                               nsIChannel** aRetVal);
+  static StaticRefPtr<PageIconProtocolHandler> sSingleton;
+};
+
+}  // namespace mozilla::places
+
+#endif