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-rw-r--r--dom/base/FormData.cpp430
1 files changed, 430 insertions, 0 deletions
diff --git a/dom/base/FormData.cpp b/dom/base/FormData.cpp
new file mode 100644
index 000000000..6095286be
--- /dev/null
+++ b/dom/base/FormData.cpp
@@ -0,0 +1,430 @@
+/* -*- 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/. */
+
+#include "FormData.h"
+#include "nsIVariant.h"
+#include "nsIInputStream.h"
+#include "mozilla/dom/File.h"
+#include "mozilla/dom/Directory.h"
+#include "mozilla/dom/HTMLFormElement.h"
+
+#include "MultipartBlobImpl.h"
+
+using namespace mozilla;
+using namespace mozilla::dom;
+
+FormData::FormData(nsISupports* aOwner)
+ : HTMLFormSubmission(NS_LITERAL_CSTRING("UTF-8"), nullptr)
+ , mOwner(aOwner)
+{
+}
+
+namespace {
+
+already_AddRefed<File>
+GetOrCreateFileCalledBlob(Blob& aBlob, ErrorResult& aRv)
+{
+ // If this is file, we can just use it
+ RefPtr<File> file = aBlob.ToFile();
+ if (file) {
+ return file.forget();
+ }
+
+ // Forcing 'blob' as filename
+ file = aBlob.ToFile(NS_LITERAL_STRING("blob"), aRv);
+ if (NS_WARN_IF(aRv.Failed())) {
+ return nullptr;
+ }
+
+ return file.forget();
+}
+
+already_AddRefed<File>
+GetBlobForFormDataStorage(Blob& aBlob, const Optional<nsAString>& aFilename,
+ ErrorResult& aRv)
+{
+ // Forcing a filename
+ if (aFilename.WasPassed()) {
+ RefPtr<File> file = aBlob.ToFile(aFilename.Value(), aRv);
+ if (NS_WARN_IF(aRv.Failed())) {
+ return nullptr;
+ }
+
+ return file.forget();
+ }
+
+ return GetOrCreateFileCalledBlob(aBlob, aRv);
+}
+
+} // namespace
+
+// -------------------------------------------------------------------------
+// nsISupports
+
+NS_IMPL_CYCLE_COLLECTION_CLASS(FormData)
+
+NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(FormData)
+ NS_IMPL_CYCLE_COLLECTION_UNLINK(mOwner)
+
+ for (uint32_t i = 0, len = tmp->mFormData.Length(); i < len; ++i) {
+ ImplCycleCollectionUnlink(tmp->mFormData[i].value);
+ }
+
+ NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER
+NS_IMPL_CYCLE_COLLECTION_UNLINK_END
+
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(FormData)
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mOwner)
+
+ for (uint32_t i = 0, len = tmp->mFormData.Length(); i < len; ++i) {
+ ImplCycleCollectionTraverse(cb, tmp->mFormData[i].value,
+ "mFormData[i].GetAsBlob()", 0);
+ }
+
+ NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
+NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
+
+NS_IMPL_CYCLE_COLLECTION_TRACE_WRAPPERCACHE(FormData)
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(FormData)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(FormData)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(FormData)
+ NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
+ NS_INTERFACE_MAP_ENTRY(nsIDOMFormData)
+ NS_INTERFACE_MAP_ENTRY(nsIXHRSendable)
+ NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIDOMFormData)
+NS_INTERFACE_MAP_END
+
+// -------------------------------------------------------------------------
+// HTMLFormSubmission
+nsresult
+FormData::GetEncodedSubmission(nsIURI* aURI,
+ nsIInputStream** aPostDataStream)
+{
+ NS_NOTREACHED("Shouldn't call FormData::GetEncodedSubmission");
+ return NS_OK;
+}
+
+void
+FormData::Append(const nsAString& aName, const nsAString& aValue,
+ ErrorResult& aRv)
+{
+ AddNameValuePair(aName, aValue);
+}
+
+void
+FormData::Append(const nsAString& aName, Blob& aBlob,
+ const Optional<nsAString>& aFilename,
+ ErrorResult& aRv)
+{
+ RefPtr<File> file = GetBlobForFormDataStorage(aBlob, aFilename, aRv);
+ if (NS_WARN_IF(aRv.Failed())) {
+ return;
+ }
+
+ AddNameBlobOrNullPair(aName, file);
+}
+
+void
+FormData::Append(const nsAString& aName, Directory* aDirectory)
+{
+ AddNameDirectoryPair(aName, aDirectory);
+}
+
+void
+FormData::Delete(const nsAString& aName)
+{
+ // We have to use this slightly awkward for loop since uint32_t >= 0 is an
+ // error for being always true.
+ for (uint32_t i = mFormData.Length(); i-- > 0; ) {
+ if (aName.Equals(mFormData[i].name)) {
+ mFormData.RemoveElementAt(i);
+ }
+ }
+}
+
+void
+FormData::Get(const nsAString& aName,
+ Nullable<OwningBlobOrDirectoryOrUSVString>& aOutValue)
+{
+ for (uint32_t i = 0; i < mFormData.Length(); ++i) {
+ if (aName.Equals(mFormData[i].name)) {
+ aOutValue.SetValue() = mFormData[i].value;
+ return;
+ }
+ }
+
+ aOutValue.SetNull();
+}
+
+void
+FormData::GetAll(const nsAString& aName,
+ nsTArray<OwningBlobOrDirectoryOrUSVString>& aValues)
+{
+ for (uint32_t i = 0; i < mFormData.Length(); ++i) {
+ if (aName.Equals(mFormData[i].name)) {
+ OwningBlobOrDirectoryOrUSVString* element = aValues.AppendElement();
+ *element = mFormData[i].value;
+ }
+ }
+}
+
+bool
+FormData::Has(const nsAString& aName)
+{
+ for (uint32_t i = 0; i < mFormData.Length(); ++i) {
+ if (aName.Equals(mFormData[i].name)) {
+ return true;
+ }
+ }
+
+ return false;
+}
+
+nsresult
+FormData::AddNameBlobOrNullPair(const nsAString& aName, Blob* aBlob)
+{
+ RefPtr<File> file;
+
+ if (!aBlob) {
+ FormDataTuple* data = mFormData.AppendElement();
+ SetNameValuePair(data, aName, EmptyString(), true /* aWasNullBlob */);
+ return NS_OK;
+ }
+
+ ErrorResult rv;
+ file = GetOrCreateFileCalledBlob(*aBlob, rv);
+ if (NS_WARN_IF(rv.Failed())) {
+ return rv.StealNSResult();
+ }
+
+ FormDataTuple* data = mFormData.AppendElement();
+ SetNameFilePair(data, aName, file);
+ return NS_OK;
+}
+
+nsresult
+FormData::AddNameDirectoryPair(const nsAString& aName, Directory* aDirectory)
+{
+ MOZ_ASSERT(aDirectory);
+
+ FormDataTuple* data = mFormData.AppendElement();
+ SetNameDirectoryPair(data, aName, aDirectory);
+ return NS_OK;
+}
+
+FormData::FormDataTuple*
+FormData::RemoveAllOthersAndGetFirstFormDataTuple(const nsAString& aName)
+{
+ FormDataTuple* lastFoundTuple = nullptr;
+ uint32_t lastFoundIndex = mFormData.Length();
+ // We have to use this slightly awkward for loop since uint32_t >= 0 is an
+ // error for being always true.
+ for (uint32_t i = mFormData.Length(); i-- > 0; ) {
+ if (aName.Equals(mFormData[i].name)) {
+ if (lastFoundTuple) {
+ // The one we found earlier was not the first one, we can remove it.
+ mFormData.RemoveElementAt(lastFoundIndex);
+ }
+
+ lastFoundTuple = &mFormData[i];
+ lastFoundIndex = i;
+ }
+ }
+
+ return lastFoundTuple;
+}
+
+void
+FormData::Set(const nsAString& aName, Blob& aBlob,
+ const Optional<nsAString>& aFilename,
+ ErrorResult& aRv)
+{
+ FormDataTuple* tuple = RemoveAllOthersAndGetFirstFormDataTuple(aName);
+ if (tuple) {
+ RefPtr<File> file = GetBlobForFormDataStorage(aBlob, aFilename, aRv);
+ if (NS_WARN_IF(aRv.Failed())) {
+ return;
+ }
+
+ SetNameFilePair(tuple, aName, file);
+ } else {
+ Append(aName, aBlob, aFilename, aRv);
+ }
+}
+
+void
+FormData::Set(const nsAString& aName, const nsAString& aValue,
+ ErrorResult& aRv)
+{
+ FormDataTuple* tuple = RemoveAllOthersAndGetFirstFormDataTuple(aName);
+ if (tuple) {
+ SetNameValuePair(tuple, aName, aValue);
+ } else {
+ Append(aName, aValue, aRv);
+ }
+}
+
+uint32_t
+FormData::GetIterableLength() const
+{
+ return mFormData.Length();
+}
+
+const nsAString&
+FormData::GetKeyAtIndex(uint32_t aIndex) const
+{
+ MOZ_ASSERT(aIndex < mFormData.Length());
+ return mFormData[aIndex].name;
+}
+
+const OwningBlobOrDirectoryOrUSVString&
+FormData::GetValueAtIndex(uint32_t aIndex) const
+{
+ MOZ_ASSERT(aIndex < mFormData.Length());
+ return mFormData[aIndex].value;
+}
+
+void
+FormData::SetNameValuePair(FormDataTuple* aData,
+ const nsAString& aName,
+ const nsAString& aValue,
+ bool aWasNullBlob)
+{
+ MOZ_ASSERT(aData);
+ aData->name = aName;
+ aData->wasNullBlob = aWasNullBlob;
+ aData->value.SetAsUSVString() = aValue;
+}
+
+void
+FormData::SetNameFilePair(FormDataTuple* aData,
+ const nsAString& aName,
+ File* aFile)
+{
+ MOZ_ASSERT(aData);
+ MOZ_ASSERT(aFile);
+
+ aData->name = aName;
+ aData->wasNullBlob = false;
+ aData->value.SetAsBlob() = aFile;
+}
+
+void
+FormData::SetNameDirectoryPair(FormDataTuple* aData,
+ const nsAString& aName,
+ Directory* aDirectory)
+{
+ MOZ_ASSERT(aData);
+ MOZ_ASSERT(aDirectory);
+
+ aData->name = aName;
+ aData->wasNullBlob = false;
+ aData->value.SetAsDirectory() = aDirectory;
+}
+
+// -------------------------------------------------------------------------
+// nsIDOMFormData
+
+NS_IMETHODIMP
+FormData::Append(const nsAString& aName, nsIVariant* aValue)
+{
+ uint16_t dataType;
+ nsresult rv = aValue->GetDataType(&dataType);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (dataType == nsIDataType::VTYPE_INTERFACE ||
+ dataType == nsIDataType::VTYPE_INTERFACE_IS) {
+ nsCOMPtr<nsISupports> supports;
+ nsID *iid;
+ rv = aValue->GetAsInterface(&iid, getter_AddRefs(supports));
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ free(iid);
+
+ nsCOMPtr<nsIDOMBlob> domBlob = do_QueryInterface(supports);
+ RefPtr<Blob> blob = static_cast<Blob*>(domBlob.get());
+ if (domBlob) {
+ Optional<nsAString> temp;
+ ErrorResult rv;
+ Append(aName, *blob, temp, rv);
+ if (NS_WARN_IF(rv.Failed())) {
+ return rv.StealNSResult();
+ }
+
+ return NS_OK;
+ }
+ }
+
+ char16_t* stringData = nullptr;
+ uint32_t stringLen = 0;
+ rv = aValue->GetAsWStringWithSize(&stringLen, &stringData);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ nsString valAsString;
+ valAsString.Adopt(stringData, stringLen);
+
+ ErrorResult error;
+ Append(aName, valAsString, error);
+ if (NS_WARN_IF(error.Failed())) {
+ return error.StealNSResult();
+ }
+
+ return NS_OK;
+}
+
+/* virtual */ JSObject*
+FormData::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
+{
+ return FormDataBinding::Wrap(aCx, this, aGivenProto);
+}
+
+/* static */ already_AddRefed<FormData>
+FormData::Constructor(const GlobalObject& aGlobal,
+ const Optional<NonNull<HTMLFormElement> >& aFormElement,
+ ErrorResult& aRv)
+{
+ RefPtr<FormData> formData = new FormData(aGlobal.GetAsSupports());
+ if (aFormElement.WasPassed()) {
+ aRv = aFormElement.Value().WalkFormElements(formData);
+ }
+ return formData.forget();
+}
+
+// -------------------------------------------------------------------------
+// nsIXHRSendable
+
+NS_IMETHODIMP
+FormData::GetSendInfo(nsIInputStream** aBody, uint64_t* aContentLength,
+ nsACString& aContentType, nsACString& aCharset)
+{
+ FSMultipartFormData fs(NS_LITERAL_CSTRING("UTF-8"), nullptr);
+
+ for (uint32_t i = 0; i < mFormData.Length(); ++i) {
+ if (mFormData[i].wasNullBlob) {
+ MOZ_ASSERT(mFormData[i].value.IsUSVString());
+ fs.AddNameBlobOrNullPair(mFormData[i].name, nullptr);
+ } else if (mFormData[i].value.IsUSVString()) {
+ fs.AddNameValuePair(mFormData[i].name,
+ mFormData[i].value.GetAsUSVString());
+ } else if (mFormData[i].value.IsBlob()) {
+ fs.AddNameBlobOrNullPair(mFormData[i].name,
+ mFormData[i].value.GetAsBlob());
+ } else {
+ MOZ_ASSERT(mFormData[i].value.IsDirectory());
+ fs.AddNameDirectoryPair(mFormData[i].name,
+ mFormData[i].value.GetAsDirectory());
+ }
+ }
+
+ fs.GetContentType(aContentType);
+ aCharset.Truncate();
+ *aContentLength = 0;
+ NS_ADDREF(*aBody = fs.GetSubmissionBody(aContentLength));
+
+ return NS_OK;
+}