Add m-esr52 at 52.6.0

1 files changed, 313 insertions, 0 deletions

diff --git a/dom/fetch/InternalResponse.h b/dom/fetch/InternalResponse.h
new file mode 100644
index 000000000..35467836a
--- /dev/null
+++ b/dom/fetch/InternalResponse.h
@@ -0,0 +1,313 @@
+/* -*- 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 mozilla_dom_InternalResponse_h
+#define mozilla_dom_InternalResponse_h
+
+#include "nsIInputStream.h"
+#include "nsISupportsImpl.h"
+
+#include "mozilla/dom/ResponseBinding.h"
+#include "mozilla/dom/ChannelInfo.h"
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+namespace ipc {
+class PrincipalInfo;
+class AutoIPCStream;
+} // namespace ipc
+
+namespace dom {
+
+class InternalHeaders;
+class IPCInternalResponse;
+
+class InternalResponse final
+{
+  friend class FetchDriver;
+
+public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(InternalResponse)
+
+  InternalResponse(uint16_t aStatus, const nsACString& aStatusText);
+
+  static already_AddRefed<InternalResponse>
+  FromIPC(const IPCInternalResponse& aIPCResponse);
+
+  template<typename M>
+  void
+  ToIPC(IPCInternalResponse* aIPCResponse,
+        M* aManager,
+        UniquePtr<mozilla::ipc::AutoIPCStream>& aAutoStream);
+
+  already_AddRefed<InternalResponse> Clone();
+
+  static already_AddRefed<InternalResponse>
+  NetworkError()
+  {
+    RefPtr<InternalResponse> response = new InternalResponse(0, EmptyCString());
+    ErrorResult result;
+    response->Headers()->SetGuard(HeadersGuardEnum::Immutable, result);
+    MOZ_ASSERT(!result.Failed());
+    response->mType = ResponseType::Error;
+    return response.forget();
+  }
+
+  already_AddRefed<InternalResponse>
+  OpaqueResponse();
+
+  already_AddRefed<InternalResponse>
+  OpaqueRedirectResponse();
+
+  already_AddRefed<InternalResponse>
+  BasicResponse();
+
+  already_AddRefed<InternalResponse>
+  CORSResponse();
+
+  ResponseType
+  Type() const
+  {
+    MOZ_ASSERT_IF(mType == ResponseType::Error, !mWrappedResponse);
+    MOZ_ASSERT_IF(mType == ResponseType::Default, !mWrappedResponse);
+    MOZ_ASSERT_IF(mType == ResponseType::Basic, mWrappedResponse);
+    MOZ_ASSERT_IF(mType == ResponseType::Cors, mWrappedResponse);
+    MOZ_ASSERT_IF(mType == ResponseType::Opaque, mWrappedResponse);
+    MOZ_ASSERT_IF(mType == ResponseType::Opaqueredirect, mWrappedResponse);
+    return mType;
+  }
+
+  bool
+  IsError() const
+  {
+    return Type() == ResponseType::Error;
+  }
+  // GetUrl should return last fetch URL in response's url list and null if
+  // response's url list is the empty list.
+  const nsCString&
+  GetURL() const
+  {
+    // Empty urlList when response is a synthetic response.
+    if (mURLList.IsEmpty()) {
+      return EmptyCString();
+    }
+    return mURLList.LastElement();
+  }
+  void
+  GetURLList(nsTArray<nsCString>& aURLList) const
+  {
+    aURLList.Assign(mURLList);
+  }
+  const nsCString&
+  GetUnfilteredURL() const
+  {
+    if (mWrappedResponse) {
+      return mWrappedResponse->GetURL();
+    }
+    return GetURL();
+  }
+  void
+  GetUnfilteredURLList(nsTArray<nsCString>& aURLList) const
+  {
+    if (mWrappedResponse) {
+      return mWrappedResponse->GetURLList(aURLList);
+    }
+
+    return GetURLList(aURLList);
+  }
+
+  void
+  SetURLList(const nsTArray<nsCString>& aURLList)
+  {
+    mURLList.Assign(aURLList);
+
+#ifdef DEBUG
+    for(uint32_t i = 0; i < mURLList.Length(); ++i) {
+      MOZ_ASSERT(mURLList[i].Find(NS_LITERAL_CSTRING("#")) == kNotFound);
+    }
+#endif
+  }
+
+  uint16_t
+  GetStatus() const
+  {
+    return mStatus;
+  }
+
+  uint16_t
+  GetUnfilteredStatus() const
+  {
+    if (mWrappedResponse) {
+      return mWrappedResponse->GetStatus();
+    }
+
+    return GetStatus();
+  }
+
+  const nsCString&
+  GetStatusText() const
+  {
+    return mStatusText;
+  }
+
+  const nsCString&
+  GetUnfilteredStatusText() const
+  {
+    if (mWrappedResponse) {
+      return mWrappedResponse->GetStatusText();
+    }
+
+    return GetStatusText();
+  }
+
+  InternalHeaders*
+  Headers()
+  {
+    return mHeaders;
+  }
+
+  InternalHeaders*
+  UnfilteredHeaders()
+  {
+    if (mWrappedResponse) {
+      return mWrappedResponse->Headers();
+    };
+
+    return Headers();
+  }
+
+  void
+  GetUnfilteredBody(nsIInputStream** aStream, int64_t* aBodySize = nullptr)
+  {
+    if (mWrappedResponse) {
+      MOZ_ASSERT(!mBody);
+      return mWrappedResponse->GetBody(aStream, aBodySize);
+    }
+    nsCOMPtr<nsIInputStream> stream = mBody;
+    stream.forget(aStream);
+    if (aBodySize) {
+      *aBodySize = mBodySize;
+    }
+  }
+
+  void
+  GetBody(nsIInputStream** aStream, int64_t* aBodySize = nullptr)
+  {
+    if (Type() == ResponseType::Opaque ||
+        Type() == ResponseType::Opaqueredirect) {
+      *aStream = nullptr;
+      if (aBodySize) {
+        *aBodySize = UNKNOWN_BODY_SIZE;
+      }
+      return;
+    }
+
+    return GetUnfilteredBody(aStream, aBodySize);
+  }
+
+  void
+  SetBody(nsIInputStream* aBody, int64_t aBodySize)
+  {
+    if (mWrappedResponse) {
+      return mWrappedResponse->SetBody(aBody, aBodySize);
+    }
+    // A request's body may not be reset once set.
+    MOZ_ASSERT(!mBody);
+    MOZ_ASSERT(mBodySize == UNKNOWN_BODY_SIZE);
+    // Check arguments.
+    MOZ_ASSERT(aBodySize == UNKNOWN_BODY_SIZE || aBodySize >= 0);
+    // If body is not given, then size must be unknown.
+    MOZ_ASSERT_IF(!aBody, aBodySize == UNKNOWN_BODY_SIZE);
+
+    mBody = aBody;
+    mBodySize = aBodySize;
+  }
+
+  void
+  InitChannelInfo(nsIChannel* aChannel)
+  {
+    mChannelInfo.InitFromChannel(aChannel);
+  }
+
+  void
+  InitChannelInfo(const mozilla::ipc::IPCChannelInfo& aChannelInfo)
+  {
+    mChannelInfo.InitFromIPCChannelInfo(aChannelInfo);
+  }
+
+  void
+  InitChannelInfo(const ChannelInfo& aChannelInfo)
+  {
+    mChannelInfo = aChannelInfo;
+  }
+
+  const ChannelInfo&
+  GetChannelInfo() const
+  {
+    return mChannelInfo;
+  }
+
+  const UniquePtr<mozilla::ipc::PrincipalInfo>&
+  GetPrincipalInfo() const
+  {
+    return mPrincipalInfo;
+  }
+
+  bool
+  IsRedirected() const
+  {
+    return mURLList.Length() > 1;
+  }
+
+  // Takes ownership of the principal info.
+  void
+  SetPrincipalInfo(UniquePtr<mozilla::ipc::PrincipalInfo> aPrincipalInfo);
+
+  LoadTainting
+  GetTainting() const;
+
+  already_AddRefed<InternalResponse>
+  Unfiltered();
+
+private:
+  ~InternalResponse();
+
+  explicit InternalResponse(const InternalResponse& aOther) = delete;
+  InternalResponse& operator=(const InternalResponse&) = delete;
+
+  // Returns an instance of InternalResponse which is a copy of this
+  // InternalResponse, except headers, body and wrapped response (if any) which
+  // are left uninitialized. Used for cloning and filtering.
+  already_AddRefed<InternalResponse> CreateIncompleteCopy();
+
+  ResponseType mType;
+  nsCString mTerminationReason;
+  // A response has an associated url list (a list of zero or more fetch URLs).
+  // Unless stated otherwise, it is the empty list. The current url is the last
+  // element in mURLlist
+  nsTArray<nsCString> mURLList;
+  const uint16_t mStatus;
+  const nsCString mStatusText;
+  RefPtr<InternalHeaders> mHeaders;
+  nsCOMPtr<nsIInputStream> mBody;
+  int64_t mBodySize;
+public:
+  static const int64_t UNKNOWN_BODY_SIZE = -1;
+private:
+  ChannelInfo mChannelInfo;
+  UniquePtr<mozilla::ipc::PrincipalInfo> mPrincipalInfo;
+
+  // For filtered responses.
+  // Cache, and SW interception should always serialize/access the underlying
+  // unfiltered headers and when deserializing, create an InternalResponse
+  // with the unfiltered headers followed by wrapping it.
+  RefPtr<InternalResponse> mWrappedResponse;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_InternalResponse_h