1 files changed, 60 insertions, 0 deletions
diff --git a/netwerk/dns/ODoH.h b/netwerk/dns/ODoH.h
new file mode 100644
index 0000000000..385ac83bd5
--- /dev/null
+++ b/netwerk/dns/ODoH.h
@@ -0,0 +1,60 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set sw=2 ts=8 et 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 mozilla_net_ODoH_h
+#define mozilla_net_ODoH_h
+
+#include "TRR.h"
+
+namespace mozilla {
+namespace net {
+
+class ODoH final : public TRR {
+ public:
+  explicit ODoH(AHostResolver* aResolver, nsHostRecord* aRec,
+                enum TrrType aType)
+      : TRR(aResolver, aRec, aType) {}
+  // when following CNAMEs
+  explicit ODoH(AHostResolver* aResolver, nsHostRecord* aRec, nsCString& aHost,
+                enum TrrType& aType, unsigned int aLoopCount, bool aPB)
+      : TRR(aResolver, aRec, aHost, aType, aLoopCount, aPB) {}
+  NS_IMETHOD Run() override;
+  // ODoH should not support push.
+  NS_IMETHOD GetInterface(const nsIID&, void**) override {
+    return NS_ERROR_NO_INTERFACE;
+  }
+
+ protected:
+  virtual ~ODoH() = default;
+  virtual DNSPacket* GetOrCreateDNSPacket() override;
+  virtual nsresult CreateQueryURI(nsIURI** aOutURI) override;
+  virtual const char* ContentType() const override {
+    return "application/oblivious-dns-message";
+  }
+  virtual DNSResolverType ResolverType() const override {
+    return DNSResolverType::ODoH;
+  }
+  virtual bool MaybeBlockRequest() override {
+    // TODO: check excluded list
+    return false;
+  };
+  virtual void RecordProcessingTime(nsIChannel* aChannel) override {
+    // TODO: record processing time for ODoH.
+  }
+  virtual void ReportStatus(nsresult aStatusCode) override {
+    // TODO: record status in ODoHService.
+  }
+  virtual void HandleTimeout() override;
+  virtual void HandleEncodeError(nsresult aStatusCode) override;
+  virtual void HandleDecodeError(nsresult aStatusCode) override;
+
+  bool mTriedDownloadODoHConfigs = false;
+};
+
+}  // namespace net
+}  // namespace mozilla
+
+#endif