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/* -*- 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 K, typename V> class Record;
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;
nsTArray<Entry> mSortedList;
// This boolean is set to true at any writing operation to mList. It's set to
// false when mSortedList is regenerated. This happens when the header is
// iterated.
bool mListDirty;
public:
explicit InternalHeaders(HeadersGuardEnum aGuard = HeadersGuardEnum::None)
: mGuard(aGuard)
, mListDirty(false)
{
}
explicit InternalHeaders(const InternalHeaders& aOther)
: mGuard(HeadersGuardEnum::None)
, mListDirty(true)
{
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()
{
MaybeSortList();
return mSortedList.Length();
}
const NS_ConvertASCIItoUTF16 GetKeyAtIndex(unsigned aIndex)
{
MaybeSortList();
MOZ_ASSERT(aIndex < mSortedList.Length());
return NS_ConvertASCIItoUTF16(mSortedList[aIndex].mName);
}
const NS_ConvertASCIItoUTF16 GetValueAtIndex(unsigned aIndex)
{
MaybeSortList();
MOZ_ASSERT(aIndex < mSortedList.Length());
return NS_ConvertASCIItoUTF16(mSortedList[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 Record<nsCString, 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);
void MaybeSortList();
void SetListDirty();
};
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_InternalHeaders_h
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