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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "DOMFormData.h"
#include "Document.h"
#include "HTMLFormControlElement.h"
#include "HTMLFormElement.h"
namespace WebCore {
DOMFormData::DOMFormData(ScriptExecutionContext* context, const PAL::TextEncoding& encoding)
: ContextDestructionObserver(context)
, m_encoding(encoding)
{
}
ExceptionOr<Ref<DOMFormData>> DOMFormData::create(ScriptExecutionContext& context, HTMLFormElement* form, HTMLElement* submitter)
{
// https://xhr.spec.whatwg.org/#dom-formdata
auto formData = adoptRef(*new DOMFormData(&context));
if (!form)
return formData;
RefPtr<HTMLFormControlElement> control;
if (submitter) {
control = dynamicDowncast<HTMLFormControlElement>(*submitter);
if (!control || !control->isSubmitButton())
return Exception { ExceptionCode::TypeError, "The specified element is not a submit button."_s };
if (control->form() != form)
return Exception { ExceptionCode::NotFoundError, "The specified element is not owned by this form element."_s };
}
auto result = form->constructEntryList(control.get(), WTFMove(formData), nullptr);
if (!result)
return Exception { ExceptionCode::InvalidStateError, "Already constructing Form entry list."_s };
return result.releaseNonNull();
}
Ref<DOMFormData> DOMFormData::create(ScriptExecutionContext* context, const PAL::TextEncoding& encoding)
{
return adoptRef(*new DOMFormData(context, encoding));
}
Ref<DOMFormData> DOMFormData::clone() const
{
auto newFormData = adoptRef(*new DOMFormData(scriptExecutionContext(), this->encoding()));
newFormData->m_items = m_items;
return newFormData;
}
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#create-an-entry
static auto createStringEntry(const String& name, const String& value) -> DOMFormData::Item
{
return {
replaceUnpairedSurrogatesWithReplacementCharacter(String(name)),
replaceUnpairedSurrogatesWithReplacementCharacter(String(value)),
};
}
// https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#create-an-entry
static auto createFileEntry(const String& name, Blob& blob, const String& filename) -> DOMFormData::Item
{
auto usvName = replaceUnpairedSurrogatesWithReplacementCharacter(String(name));
if (RefPtr file = dynamicDowncast<File>(blob)) {
if (!filename.isNull())
return { usvName, File::create(blob.scriptExecutionContext(), *file, filename) };
return { usvName, WTFMove(file) };
}
return { usvName, File::create(blob.scriptExecutionContext(), blob, filename.isNull() ? "blob"_s : filename) };
}
void DOMFormData::append(const String& name, const String& value)
{
m_items.append(createStringEntry(name, value));
}
void DOMFormData::append(const String& name, Blob& blob, const String& filename)
{
m_items.append(createFileEntry(name, blob, filename));
}
void DOMFormData::remove(const String& name)
{
m_items.removeAllMatching([&name] (const auto& item) {
return item.name == name;
});
}
auto DOMFormData::get(const String& name) -> std::optional<FormDataEntryValue>
{
for (auto& item : m_items) {
if (item.name == name)
return item.data;
}
return std::nullopt;
}
auto DOMFormData::getAll(const String& name) -> Vector<FormDataEntryValue>
{
Vector<FormDataEntryValue> result;
for (auto& item : m_items) {
if (item.name == name)
result.append(item.data);
}
return result;
}
bool DOMFormData::has(const String& name)
{
for (auto& item : m_items) {
if (item.name == name)
return true;
}
return false;
}
void DOMFormData::set(const String& name, const String& value)
{
set(name, { name, value });
}
void DOMFormData::set(const String& name, Blob& blob, const String& filename)
{
set(name, createFileEntry(name, blob, filename));
}
void DOMFormData::set(const String& name, Item&& item)
{
std::optional<size_t> initialMatchLocation;
// Find location of the first item with a matching name.
for (size_t i = 0; i < m_items.size(); ++i) {
if (name == m_items[i].name) {
initialMatchLocation = i;
break;
}
}
if (initialMatchLocation) {
m_items[*initialMatchLocation] = WTFMove(item);
m_items.removeAllMatching([&name] (const auto& item) {
return item.name == name;
}, *initialMatchLocation + 1);
return;
}
m_items.append(WTFMove(item));
}
DOMFormData::Iterator::Iterator(DOMFormData& target)
: m_target(target)
{
}
std::optional<KeyValuePair<String, DOMFormData::FormDataEntryValue>> DOMFormData::Iterator::next()
{
auto& items = m_target->items();
if (m_index >= items.size())
return std::nullopt;
auto& item = items[m_index++];
return makeKeyValuePair(item.name, item.data);
}
} // namespace WebCore
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