forked from mirrors/gecko-dev
e0fc545cbc
Depends on D174115 Differential Revision: https://phabricator.services.mozilla.com/D179278
409 lines
12 KiB
C++
409 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "FormData.h"
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#include "nsIInputStream.h"
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#include "mozilla/dom/CustomElementTypes.h"
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#include "mozilla/dom/File.h"
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#include "mozilla/dom/Directory.h"
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#include "mozilla/dom/HTMLFormElement.h"
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#include "mozilla/Encoding.h"
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#include "nsGenericHTMLElement.h"
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#include "nsQueryObject.h"
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#include "MultipartBlobImpl.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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FormData::FormData(nsISupports* aOwner, NotNull<const Encoding*> aEncoding,
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Element* aSubmitter)
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: HTMLFormSubmission(nullptr, u""_ns, aEncoding),
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mOwner(aOwner),
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mSubmitter(aSubmitter) {}
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FormData::FormData(const FormData& aFormData)
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: HTMLFormSubmission(aFormData.mActionURL, aFormData.mTarget,
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aFormData.mEncoding) {
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mOwner = aFormData.mOwner;
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mSubmitter = aFormData.mSubmitter;
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mFormData = aFormData.mFormData.Clone();
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}
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namespace {
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already_AddRefed<File> GetOrCreateFileCalledBlob(Blob& aBlob,
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ErrorResult& aRv) {
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// If this is file, we can just use it
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RefPtr<File> file = aBlob.ToFile();
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if (file) {
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return file.forget();
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}
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// Forcing 'blob' as filename
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file = aBlob.ToFile(u"blob"_ns, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return file.forget();
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}
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already_AddRefed<File> GetBlobForFormDataStorage(
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Blob& aBlob, const Optional<nsAString>& aFilename, ErrorResult& aRv) {
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// Forcing a filename
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if (aFilename.WasPassed()) {
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RefPtr<File> file = aBlob.ToFile(aFilename.Value(), aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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return file.forget();
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}
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return GetOrCreateFileCalledBlob(aBlob, aRv);
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}
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} // namespace
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// -------------------------------------------------------------------------
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// nsISupports
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NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_CLASS(FormData)
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NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(FormData)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwner)
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NS_IMPL_CYCLE_COLLECTION_UNLINK(mSubmitter)
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for (uint32_t i = 0, len = tmp->mFormData.Length(); i < len; ++i) {
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ImplCycleCollectionUnlink(tmp->mFormData[i].value);
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}
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NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
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NS_IMPL_CYCLE_COLLECTION_UNLINK_END
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(FormData)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwner)
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mSubmitter)
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for (uint32_t i = 0, len = tmp->mFormData.Length(); i < len; ++i) {
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ImplCycleCollectionTraverse(cb, tmp->mFormData[i].value,
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"mFormData[i].GetAsBlob()", 0);
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}
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NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
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NS_IMPL_CYCLE_COLLECTING_ADDREF(FormData)
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NS_IMPL_CYCLE_COLLECTING_RELEASE(FormData)
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NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FormData)
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NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
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NS_INTERFACE_MAP_ENTRY(nsISupports)
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NS_INTERFACE_MAP_END
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// -------------------------------------------------------------------------
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// HTMLFormSubmission
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nsresult FormData::GetEncodedSubmission(nsIURI* aURI,
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nsIInputStream** aPostDataStream,
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nsCOMPtr<nsIURI>& aOutURI) {
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MOZ_ASSERT_UNREACHABLE("Shouldn't call FormData::GetEncodedSubmission");
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return NS_OK;
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}
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void FormData::Append(const nsAString& aName, const nsAString& aValue,
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ErrorResult& aRv) {
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AddNameValuePair(aName, aValue);
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}
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void FormData::Append(const nsAString& aName, Blob& aBlob,
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const Optional<nsAString>& aFilename, ErrorResult& aRv) {
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RefPtr<File> file = GetBlobForFormDataStorage(aBlob, aFilename, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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AddNameBlobPair(aName, file);
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}
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void FormData::Append(const nsAString& aName, Directory* aDirectory) {
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AddNameDirectoryPair(aName, aDirectory);
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}
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void FormData::Append(const FormData& aFormData) {
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for (uint32_t i = 0; i < aFormData.mFormData.Length(); ++i) {
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mFormData.AppendElement(aFormData.mFormData[i]);
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}
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}
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void FormData::Delete(const nsAString& aName) {
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mFormData.RemoveElementsBy([&aName](const auto& formDataItem) {
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return aName.Equals(formDataItem.name);
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});
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}
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void FormData::Get(const nsAString& aName,
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Nullable<OwningBlobOrDirectoryOrUSVString>& aOutValue) {
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for (uint32_t i = 0; i < mFormData.Length(); ++i) {
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if (aName.Equals(mFormData[i].name)) {
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aOutValue.SetValue() = mFormData[i].value;
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return;
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}
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}
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aOutValue.SetNull();
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}
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void FormData::GetAll(const nsAString& aName,
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nsTArray<OwningBlobOrDirectoryOrUSVString>& aValues) {
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for (uint32_t i = 0; i < mFormData.Length(); ++i) {
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if (aName.Equals(mFormData[i].name)) {
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OwningBlobOrDirectoryOrUSVString* element = aValues.AppendElement();
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*element = mFormData[i].value;
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}
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}
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}
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bool FormData::Has(const nsAString& aName) {
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for (uint32_t i = 0; i < mFormData.Length(); ++i) {
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if (aName.Equals(mFormData[i].name)) {
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return true;
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}
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}
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return false;
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}
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nsresult FormData::AddNameBlobPair(const nsAString& aName, Blob* aBlob) {
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MOZ_ASSERT(aBlob);
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nsAutoString usvName(aName);
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if (!NormalizeUSVString(usvName)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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RefPtr<File> file;
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ErrorResult rv;
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file = GetOrCreateFileCalledBlob(*aBlob, rv);
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if (NS_WARN_IF(rv.Failed())) {
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return rv.StealNSResult();
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}
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FormDataTuple* data = mFormData.AppendElement();
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SetNameFilePair(data, usvName, file);
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return NS_OK;
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}
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nsresult FormData::AddNameDirectoryPair(const nsAString& aName,
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Directory* aDirectory) {
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MOZ_ASSERT(aDirectory);
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nsAutoString usvName(aName);
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if (!NormalizeUSVString(usvName)) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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FormDataTuple* data = mFormData.AppendElement();
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SetNameDirectoryPair(data, usvName, aDirectory);
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return NS_OK;
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}
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FormData::FormDataTuple* FormData::RemoveAllOthersAndGetFirstFormDataTuple(
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const nsAString& aName) {
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FormDataTuple* lastFoundTuple = nullptr;
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uint32_t lastFoundIndex = mFormData.Length();
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// We have to use this slightly awkward for loop since uint32_t >= 0 is an
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// error for being always true.
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for (uint32_t i = mFormData.Length(); i-- > 0;) {
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if (aName.Equals(mFormData[i].name)) {
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if (lastFoundTuple) {
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// The one we found earlier was not the first one, we can remove it.
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mFormData.RemoveElementAt(lastFoundIndex);
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}
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lastFoundTuple = &mFormData[i];
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lastFoundIndex = i;
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}
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}
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return lastFoundTuple;
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}
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void FormData::Set(const nsAString& aName, Blob& aBlob,
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const Optional<nsAString>& aFilename, ErrorResult& aRv) {
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FormDataTuple* tuple = RemoveAllOthersAndGetFirstFormDataTuple(aName);
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if (tuple) {
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RefPtr<File> file = GetBlobForFormDataStorage(aBlob, aFilename, aRv);
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if (NS_WARN_IF(aRv.Failed())) {
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return;
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}
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SetNameFilePair(tuple, aName, file);
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} else {
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Append(aName, aBlob, aFilename, aRv);
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}
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}
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void FormData::Set(const nsAString& aName, const nsAString& aValue,
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ErrorResult& aRv) {
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FormDataTuple* tuple = RemoveAllOthersAndGetFirstFormDataTuple(aName);
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if (tuple) {
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SetNameValuePair(tuple, aName, aValue);
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} else {
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Append(aName, aValue, aRv);
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}
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}
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uint32_t FormData::GetIterableLength() const { return mFormData.Length(); }
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const nsAString& FormData::GetKeyAtIndex(uint32_t aIndex) const {
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MOZ_ASSERT(aIndex < mFormData.Length());
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return mFormData[aIndex].name;
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}
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const OwningBlobOrDirectoryOrUSVString& FormData::GetValueAtIndex(
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uint32_t aIndex) const {
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MOZ_ASSERT(aIndex < mFormData.Length());
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return mFormData[aIndex].value;
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}
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void FormData::SetNameValuePair(FormDataTuple* aData, const nsAString& aName,
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const nsAString& aValue) {
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MOZ_ASSERT(aData);
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aData->name = aName;
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aData->value.SetAsUSVString() = aValue;
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}
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void FormData::SetNameFilePair(FormDataTuple* aData, const nsAString& aName,
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File* aFile) {
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MOZ_ASSERT(aData);
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MOZ_ASSERT(aFile);
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aData->name = aName;
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aData->value.SetAsBlob() = aFile;
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}
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void FormData::SetNameDirectoryPair(FormDataTuple* aData,
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const nsAString& aName,
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Directory* aDirectory) {
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MOZ_ASSERT(aData);
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MOZ_ASSERT(aDirectory);
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aData->name = aName;
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aData->value.SetAsDirectory() = aDirectory;
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}
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/* virtual */
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JSObject* FormData::WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) {
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return FormData_Binding::Wrap(aCx, this, aGivenProto);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata
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/* static */
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already_AddRefed<FormData> FormData::Constructor(
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const GlobalObject& aGlobal,
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const Optional<NonNull<HTMLFormElement> >& aFormElement,
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nsGenericHTMLElement* aSubmitter, ErrorResult& aRv) {
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RefPtr<FormData> formData;
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// 1. If form is given, then:
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if (aFormElement.WasPassed()) {
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// 1.1. If submitter is non-null, then:
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if (aSubmitter) {
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nsCOMPtr<nsIFormControl> fc = do_QueryObject(aSubmitter);
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// 1.1.1. If submitter is not a submit button, then throw a TypeError.
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if (!fc || !fc->IsSubmitControl()) {
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aRv.ThrowTypeError("The submitter is not a submit button.");
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return nullptr;
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}
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// 1.1.2. If submitter's form owner is not this form element, then throw a
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// "NotFoundError" DOMException.
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if (fc->GetForm() != &aFormElement.Value()) {
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aRv.ThrowNotFoundError("The submitter is not owned by this form.");
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return nullptr;
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}
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}
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// 1.2. Let list be the result of constructing the entry list for form and
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// submitter.
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formData =
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new FormData(aGlobal.GetAsSupports(), UTF_8_ENCODING, aSubmitter);
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aRv = aFormElement.Value().ConstructEntryList(formData);
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if (NS_WARN_IF(aRv.Failed())) {
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return nullptr;
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}
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// Step 9. Return a shallow clone of entry list.
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// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#constructing-form-data-set
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formData = formData->Clone();
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} else {
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formData = new FormData(aGlobal.GetAsSupports());
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}
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return formData.forget();
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}
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// contentTypeWithCharset can be set to the contentType or
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// contentType+charset based on what the spec says.
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// See: https://fetch.spec.whatwg.org/#concept-bodyinit-extract
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nsresult FormData::GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,
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nsACString& aContentTypeWithCharset,
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nsACString& aCharset) const {
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FSMultipartFormData fs(nullptr, u""_ns, UTF_8_ENCODING, nullptr);
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nsresult rv = CopySubmissionDataTo(&fs);
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NS_ENSURE_SUCCESS(rv, rv);
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fs.GetContentType(aContentTypeWithCharset);
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aCharset.Truncate();
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*aContentLength = 0;
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NS_ADDREF(*aBody = fs.GetSubmissionBody(aContentLength));
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return NS_OK;
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}
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already_AddRefed<FormData> FormData::Clone() {
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RefPtr<FormData> formData = new FormData(*this);
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return formData.forget();
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}
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nsresult FormData::CopySubmissionDataTo(
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HTMLFormSubmission* aFormSubmission) const {
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MOZ_ASSERT(aFormSubmission, "Must have FormSubmission!");
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for (size_t i = 0; i < mFormData.Length(); ++i) {
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if (mFormData[i].value.IsUSVString()) {
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aFormSubmission->AddNameValuePair(mFormData[i].name,
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mFormData[i].value.GetAsUSVString());
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} else if (mFormData[i].value.IsBlob()) {
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aFormSubmission->AddNameBlobPair(mFormData[i].name,
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mFormData[i].value.GetAsBlob());
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} else {
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MOZ_ASSERT(mFormData[i].value.IsDirectory());
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aFormSubmission->AddNameDirectoryPair(
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mFormData[i].name, mFormData[i].value.GetAsDirectory());
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}
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}
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return NS_OK;
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}
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CustomElementFormValue FormData::ConvertToCustomElementFormValue() {
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nsTArray<mozilla::dom::FormDataTuple> formValue;
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ForEach([&formValue](const nsString& aName,
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const OwningBlobOrDirectoryOrUSVString& aValue) -> bool {
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if (aValue.IsBlob()) {
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FormDataValue value(WrapNotNull(aValue.GetAsBlob()->Impl()));
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formValue.AppendElement(mozilla::dom::FormDataTuple(aName, value));
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} else if (aValue.IsUSVString()) {
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formValue.AppendElement(
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mozilla::dom::FormDataTuple(aName, aValue.GetAsUSVString()));
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} else {
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MOZ_ASSERT_UNREACHABLE("Can't save FormData entry Directory value!");
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}
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return true;
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});
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return formValue;
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}
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