1 files changed, 160 insertions, 0 deletions
diff --git a/dom/fetch/InternalHeaders.h b/dom/fetch/InternalHeaders.h
new file mode 100644
index 000000000..e47066669
--- /dev/null
+++ b/dom/fetch/InternalHeaders.h
@@ -0,0 +1,160 @@
+/* -*- 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_InternalHeaders_h
+#define mozilla_dom_InternalHeaders_h
+
+// needed for HeadersGuardEnum.
+#include "mozilla/dom/HeadersBinding.h"
+#include "mozilla/dom/UnionTypes.h"
+
+#include "nsClassHashtable.h"
+#include "nsWrapperCache.h"
+
+namespace mozilla {
+
+class ErrorResult;
+
+namespace dom {
+
+template<typename T> class MozMap;
+class HeadersEntry;
+
+class InternalHeaders final
+{
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(InternalHeaders)
+
+public:
+  struct Entry
+  {
+    Entry(const nsACString& aName, const nsACString& aValue)
+      : mName(aName)
+      , mValue(aValue)
+    { }
+
+    Entry() { }
+
+    nsCString mName;
+    nsCString mValue;
+  };
+
+private:
+  HeadersGuardEnum mGuard;
+  nsTArray<Entry> mList;
+
+public:
+  explicit InternalHeaders(HeadersGuardEnum aGuard = HeadersGuardEnum::None)
+    : mGuard(aGuard)
+  {
+  }
+
+  explicit InternalHeaders(const InternalHeaders& aOther)
+    : mGuard(HeadersGuardEnum::None)
+  {
+    ErrorResult result;
+    Fill(aOther, result);
+    MOZ_ASSERT(!result.Failed());
+    // Note that it's important to set the guard after Fill(), to make sure
+    // that Fill() doesn't fail if aOther is immutable.
+    mGuard = aOther.mGuard;
+  }
+
+  explicit InternalHeaders(const nsTArray<Entry>&& aHeaders,
+                           HeadersGuardEnum aGuard = HeadersGuardEnum::None);
+
+  InternalHeaders(const nsTArray<HeadersEntry>& aHeadersEntryList,
+                  HeadersGuardEnum aGuard);
+
+  void ToIPC(nsTArray<HeadersEntry>& aIPCHeaders,
+             HeadersGuardEnum& aGuard);
+
+  void Append(const nsACString& aName, const nsACString& aValue,
+              ErrorResult& aRv);
+  void Delete(const nsACString& aName, ErrorResult& aRv);
+  void Get(const nsACString& aName, nsACString& aValue, ErrorResult& aRv) const;
+  void GetFirst(const nsACString& aName, nsACString& aValue, ErrorResult& aRv) const;
+  bool Has(const nsACString& aName, ErrorResult& aRv) const;
+  void Set(const nsACString& aName, const nsACString& aValue, ErrorResult& aRv);
+
+  uint32_t GetIterableLength() const
+  {
+    return mList.Length();
+  }
+  const NS_ConvertASCIItoUTF16 GetKeyAtIndex(unsigned aIndex) const
+  {
+    MOZ_ASSERT(aIndex < mList.Length());
+    return NS_ConvertASCIItoUTF16(mList[aIndex].mName);
+  }
+  const NS_ConvertASCIItoUTF16 GetValueAtIndex(unsigned aIndex) const
+  {
+    MOZ_ASSERT(aIndex < mList.Length());
+    return NS_ConvertASCIItoUTF16(mList[aIndex].mValue);
+  }
+
+  void Clear();
+
+  HeadersGuardEnum Guard() const { return mGuard; }
+  void SetGuard(HeadersGuardEnum aGuard, ErrorResult& aRv);
+
+  void Fill(const InternalHeaders& aInit, ErrorResult& aRv);
+  void Fill(const Sequence<Sequence<nsCString>>& aInit, ErrorResult& aRv);
+  void Fill(const MozMap<nsCString>& aInit, ErrorResult& aRv);
+
+  bool HasOnlySimpleHeaders() const;
+
+  bool HasRevalidationHeaders() const;
+
+  static already_AddRefed<InternalHeaders>
+  BasicHeaders(InternalHeaders* aHeaders);
+
+  static already_AddRefed<InternalHeaders>
+  CORSHeaders(InternalHeaders* aHeaders);
+
+  void
+  GetEntries(nsTArray<InternalHeaders::Entry>& aEntries) const;
+
+  void
+  GetUnsafeHeaders(nsTArray<nsCString>& aNames) const;
+private:
+  virtual ~InternalHeaders();
+
+  static bool IsInvalidName(const nsACString& aName, ErrorResult& aRv);
+  static bool IsInvalidValue(const nsACString& aValue, ErrorResult& aRv);
+  bool IsImmutable(ErrorResult& aRv) const;
+  bool IsForbiddenRequestHeader(const nsACString& aName) const;
+  bool IsForbiddenRequestNoCorsHeader(const nsACString& aName) const;
+  bool IsForbiddenRequestNoCorsHeader(const nsACString& aName,
+                                      const nsACString& aValue) const;
+  bool IsForbiddenResponseHeader(const nsACString& aName) const;
+
+  bool IsInvalidMutableHeader(const nsACString& aName,
+                              ErrorResult& aRv) const
+  {
+    return IsInvalidMutableHeader(aName, EmptyCString(), aRv);
+  }
+
+  bool IsInvalidMutableHeader(const nsACString& aName,
+                              const nsACString& aValue,
+                              ErrorResult& aRv) const
+  {
+    return IsInvalidName(aName, aRv) ||
+           IsInvalidValue(aValue, aRv) ||
+           IsImmutable(aRv) ||
+           IsForbiddenRequestHeader(aName) ||
+           IsForbiddenRequestNoCorsHeader(aName, aValue) ||
+           IsForbiddenResponseHeader(aName);
+  }
+
+  static bool IsSimpleHeader(const nsACString& aName,
+                             const nsACString& aValue);
+
+  static bool IsRevalidationHeader(const nsACString& aName);
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_InternalHeaders_h