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LibWeb: Introduce the FormData interface from the XHR specification
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Kenneth Myhra
Linus Groh
parent
b74d5a423d
commit
d5b5b94a35
9 changed files with 317 additions and 0 deletions
172
Userland/Libraries/LibWeb/XHR/FormData.cpp
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172
Userland/Libraries/LibWeb/XHR/FormData.cpp
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/*
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* Copyright (c) 2023, Kenneth Myhra <kennethmyhra@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/TypeCasts.h>
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#include <LibJS/Runtime/Completion.h>
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#include <LibWeb/Bindings/Intrinsics.h>
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#include <LibWeb/FileAPI/Blob.h>
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#include <LibWeb/FileAPI/File.h>
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#include <LibWeb/HTML/FormControlInfrastructure.h>
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#include <LibWeb/WebIDL/DOMException.h>
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#include <LibWeb/XHR/FormData.h>
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namespace Web::XHR {
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// https://xhr.spec.whatwg.org/#dom-formdata
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WebIDL::ExceptionOr<JS::NonnullGCPtr<FormData>> FormData::construct_impl(JS::Realm& realm, Optional<JS::NonnullGCPtr<HTML::HTMLFormElement>>)
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{
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// FIXME: 1. If form is given, then:
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// FIXME: 1. Let list be the result of constructing the entry list for form.
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// FIXME: 2. If list is null, then throw an "InvalidStateError" DOMException.
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// FIXME: 3. Set this’s entry list to list.
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return construct_impl(realm);
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}
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WebIDL::ExceptionOr<JS::NonnullGCPtr<FormData>> FormData::construct_impl(JS::Realm& realm, HashMap<DeprecatedString, Vector<FormDataEntryValue>> entry_list)
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{
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return MUST_OR_THROW_OOM(realm.heap().allocate<FormData>(realm, realm, move(entry_list)));
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}
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FormData::FormData(JS::Realm& realm, HashMap<DeprecatedString, Vector<FormDataEntryValue>> entry_list)
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: PlatformObject(realm)
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, m_entry_list(move(entry_list))
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{
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set_prototype(&Bindings::ensure_web_prototype<Bindings::FormDataPrototype>(realm, "FormData"));
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}
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FormData::~FormData() = default;
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void FormData::visit_edges(Cell::Visitor& visitor)
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{
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Base::visit_edges(visitor);
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for (auto const& entry : m_entry_list) {
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for (auto const& value : entry.value) {
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if (auto* file = value.get_pointer<JS::NonnullGCPtr<FileAPI::File>>())
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visitor.visit(*file);
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}
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}
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-append
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WebIDL::ExceptionOr<void> FormData::append(DeprecatedString const& name, DeprecatedString const& value)
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{
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auto& vm = realm().vm();
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return append_impl(TRY_OR_THROW_OOM(vm, String::from_deprecated_string(name)), TRY_OR_THROW_OOM(vm, String::from_deprecated_string(value)));
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-append-blob
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WebIDL::ExceptionOr<void> FormData::append(DeprecatedString const& name, JS::NonnullGCPtr<FileAPI::Blob> const& blob_value, Optional<DeprecatedString> const& filename)
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{
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auto& vm = realm().vm();
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auto inner_filename = filename.has_value() ? TRY_OR_THROW_OOM(vm, String::from_deprecated_string(filename.value())) : Optional<String> {};
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return append_impl(TRY_OR_THROW_OOM(vm, String::from_deprecated_string(name)), blob_value, inner_filename);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-append
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// https://xhr.spec.whatwg.org/#dom-formdata-append-blob
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WebIDL::ExceptionOr<void> FormData::append_impl(String const& name, Variant<JS::NonnullGCPtr<FileAPI::Blob>, String> const& value, Optional<String> const& filename)
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{
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auto& realm = this->realm();
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auto& vm = realm.vm();
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// 1. Let value be value if given; otherwise blobValue.
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// 2. Let entry be the result of creating an entry with name, value, and filename if given.
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auto entry = TRY(HTML::create_entry(realm, name, value, filename));
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// FIXME: Remove this when our binding generator supports "new string".
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auto form_data_entry_value = entry.value.has<String>()
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? FormDataEntryValue { entry.value.get<String>().to_deprecated_string() }
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: FormDataEntryValue { entry.value.get<JS::NonnullGCPtr<FileAPI::File>>() };
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// 3. Append entry to this’s entry list.
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if (auto entries = m_entry_list.get(entry.name.to_deprecated_string()); entries.has_value() && !entries->is_empty())
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TRY_OR_THROW_OOM(vm, entries->try_append(form_data_entry_value));
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else
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TRY_OR_THROW_OOM(vm, m_entry_list.try_set(entry.name.to_deprecated_string(), { form_data_entry_value }));
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return {};
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-delete
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void FormData::delete_(DeprecatedString const& name)
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{
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// The delete(name) method steps are to remove all entries whose name is name from this’s entry list.
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m_entry_list.remove(name);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-get
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Variant<JS::NonnullGCPtr<FileAPI::File>, DeprecatedString, Empty> FormData::get(DeprecatedString const& name)
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{
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// 1. If there is no entry whose name is name in this’s entry list, then return null.
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if (!m_entry_list.contains(name))
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return Empty {};
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// 2. Return the value of the first entry whose name is name from this’s entry list.
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return m_entry_list.get(name)->at(0);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-getall
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Vector<FormDataEntryValue> FormData::get_all(DeprecatedString const& name)
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{
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// 1. If there is no entry whose name is name in this’s entry list, then return the empty list.
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if (!m_entry_list.contains(name))
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return {};
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// 2. Return the values of all entries whose name is name, in order, from this’s entry list.
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return *m_entry_list.get(name);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-has
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bool FormData::has(DeprecatedString const& name)
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{
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// The has(name) method steps are to return true if there is an entry whose name is name in this’s entry list; otherwise false.
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return m_entry_list.contains(name);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-set
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WebIDL::ExceptionOr<void> FormData::set(DeprecatedString const& name, DeprecatedString const& value)
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{
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auto& vm = realm().vm();
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return set_impl(TRY_OR_THROW_OOM(vm, String::from_deprecated_string(name)), TRY_OR_THROW_OOM(vm, String::from_deprecated_string(value)));
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-set-blob
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WebIDL::ExceptionOr<void> FormData::set(DeprecatedString const& name, JS::NonnullGCPtr<FileAPI::Blob> const& blob_value, Optional<DeprecatedString> const& filename)
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{
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auto& vm = realm().vm();
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auto inner_filename = filename.has_value() ? TRY_OR_THROW_OOM(vm, String::from_deprecated_string(filename.value())) : Optional<String> {};
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return set_impl(TRY_OR_THROW_OOM(vm, String::from_deprecated_string(name)), blob_value, inner_filename);
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}
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// https://xhr.spec.whatwg.org/#dom-formdata-set
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// https://xhr.spec.whatwg.org/#dom-formdata-set-blob
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WebIDL::ExceptionOr<void> FormData::set_impl(String const& name, Variant<JS::NonnullGCPtr<FileAPI::Blob>, String> const& value, Optional<String> const& filename)
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{
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auto& realm = this->realm();
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auto& vm = realm.vm();
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// 1. Let value be value if given; otherwise blobValue.
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// 2. Let entry be the result of creating an entry with name, value, and filename if given.
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auto entry = TRY(HTML::create_entry(realm, name, value, filename));
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// FIXME: Remove this when our binding generator supports "new string".
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auto form_data_entry_value = entry.value.has<String>()
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? FormDataEntryValue { entry.value.get<String>().to_deprecated_string() }
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: FormDataEntryValue { entry.value.get<JS::NonnullGCPtr<FileAPI::File>>() };
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// 3. If there are entries in this’s entry list whose name is name, then replace the first such entry with entry and remove the others.
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if (auto entries = m_entry_list.get(entry.name.to_deprecated_string()); entries.has_value() && !entries->is_empty()) {
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entries->remove(0, entries->size());
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TRY_OR_THROW_OOM(vm, entries->try_append(form_data_entry_value));
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}
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// 4. Otherwise, append entry to this’s entry list.
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else {
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TRY_OR_THROW_OOM(vm, m_entry_list.try_set(entry.name.to_deprecated_string(), { form_data_entry_value }));
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}
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return {};
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}
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}
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