1 files changed, 80 insertions, 0 deletions
diff --git a/netwerk/url-classifier/ChannelClassifierService.h b/netwerk/url-classifier/ChannelClassifierService.h
new file mode 100644
index 0000000000..2c6c13b10d
--- /dev/null
+++ b/netwerk/url-classifier/ChannelClassifierService.h
@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set expandtab ts=2 sw=2 sts=2 cin: */
+/* 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_net_ChannelClassifierService_h
+#define mozilla_net_ChannelClassifierService_h
+
+#include "nsIChannelClassifierService.h"
+#include "mozilla/net/UrlClassifierCommon.h"
+#include "nsCOMPtr.h"
+#include "nsTArray.h"
+
+namespace mozilla {
+namespace net {
+
+enum class ChannelBlockDecision {
+  Blocked,
+  Replaced,
+  Allowed,
+};
+
+class UrlClassifierBlockedChannel final
+    : public nsIUrlClassifierBlockedChannel {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSIURLCLASSIFIERBLOCKEDCHANNEL
+
+  explicit UrlClassifierBlockedChannel(nsIChannel* aChannel);
+
+  bool IsUnblocked() const {
+    return mDecision != ChannelBlockDecision::Blocked;
+  }
+
+  ChannelBlockDecision GetDecision() { return mDecision; };
+
+  void SetReason(const nsACString& aFeatureName, const nsACString& aTableName);
+
+ protected:
+  ~UrlClassifierBlockedChannel() = default;
+
+ private:
+  nsCOMPtr<nsIChannel> mChannel;
+  ChannelBlockDecision mDecision;
+  uint8_t mReason;
+  nsCString mTables;
+};
+
+class ChannelClassifierService final : public nsIChannelClassifierService {
+ public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSICHANNELCLASSIFIERSERVICE
+
+  friend class UrlClassifierBlockedChannel;
+
+  static already_AddRefed<nsIChannelClassifierService> GetSingleton();
+
+  static ChannelBlockDecision OnBeforeBlockChannel(
+      nsIChannel* aChannel, const nsACString& aFeatureName,
+      const nsACString& aTableName);
+
+  nsresult OnBeforeBlockChannel(nsIChannel* aChannel,
+                                const nsACString& aFeatureName,
+                                const nsACString& aTableName,
+                                ChannelBlockDecision& aDecision);
+
+  bool HasListener() const { return !mListeners.IsEmpty(); }
+
+ private:
+  ChannelClassifierService();
+  ~ChannelClassifierService() = default;
+
+  nsTArray<nsCOMPtr<nsIObserver>> mListeners;
+};
+
+}  // namespace net
+}  // namespace mozilla
+
+#endif  // mozilla_net_ChannelClassifierService_h