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LibWeb: Update extract_body() to use BodyInit

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This commit is contained in:
Linus Groh 2022-09-22 17:30:54 +01:00
parent 8f5620b5d9
commit 54a987ad45
3 changed files with 31 additions and 14 deletions
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41
Userland/Libraries/LibWeb/Fetch/BodyInit.cpp
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@ -6,6 +6,7 @@
*/
#include <LibWeb/Bindings/IDLAbstractOperations.h>
#include <LibWeb/DOM/ExceptionOr.h>
#include <LibWeb/Fetch/BodyInit.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Bodies.h>
#include <LibWeb/HTML/Window.h>
@ -14,13 +15,18 @@
namespace Web::Fetch {
// https://fetch.spec.whatwg.org/#concept-bodyinit-extract
// FIXME: The parameter 'body_init' should be 'typedef (ReadableStream or XMLHttpRequestBodyInit) BodyInit'. For now we just let it be 'XMLHttpRequestBodyInit'.
ErrorOr<Infrastructure::BodyWithType> extract_body(JS::Realm& realm, XMLHttpRequestBodyInit const& body_init)
DOM::ExceptionOr<Infrastructure::BodyWithType> extract_body(JS::Realm& realm, BodyInit const& object, bool keepalive)
{
auto& window = verify_cast<HTML::Window>(realm.global_object());
// FIXME: 1. Let stream be object if object is a ReadableStream object. Otherwise, let stream be a new ReadableStream, and set up stream.
auto* stream = realm.heap().allocate<Streams::ReadableStream>(realm, window);
// 1. Let stream be object if object is a ReadableStream object. Otherwise, let stream be a new ReadableStream, and set up stream.
Streams::ReadableStream* stream;
if (auto const* handle = object.get_pointer<JS::Handle<Streams::ReadableStream>>()) {
stream = const_cast<Streams::ReadableStream*>(handle->cell());
} else {
stream = realm.heap().allocate<Streams::ReadableStream>(realm, window);
}
// FIXME: 2. Let action be null.
// 3. Let source be null.
Infrastructure::Body::SourceType source {};
@ -31,8 +37,8 @@ ErrorOr<Infrastructure::BodyWithType> extract_body(JS::Realm& realm, XMLHttpRequ
// 6. Switch on object.
// FIXME: Still need to support BufferSource and FormData
TRY(body_init.visit(
[&](JS::Handle<FileAPI::Blob> const& blob) -> ErrorOr<void> {
TRY(object.visit(
[&](JS::Handle<FileAPI::Blob> const& blob) -> DOM::ExceptionOr<void> {
// FIXME: Set action to this step: read object.
// Set source to object.
source = blob;
@ -43,24 +49,35 @@ ErrorOr<Infrastructure::BodyWithType> extract_body(JS::Realm& realm, XMLHttpRequ
type = blob->type().to_byte_buffer();
return {};
},
[&](JS::Handle<JS::Object> const& buffer_source) -> ErrorOr<void> {
[&](JS::Handle<JS::Object> const& buffer_source) -> DOM::ExceptionOr<void> {
// Set source to a copy of the bytes held by object.
source = TRY(Bindings::IDL::get_buffer_source_copy(*buffer_source.cell()));
source = TRY_OR_RETURN_OOM(window, Bindings::IDL::get_buffer_source_copy(*buffer_source.cell()));
return {};
},
[&](JS::Handle<URL::URLSearchParams> const& url_search_params) -> ErrorOr<void> {
[&](JS::Handle<URL::URLSearchParams> const& url_search_params) -> DOM::ExceptionOr<void> {
// Set source to the result of running the application/x-www-form-urlencoded serializer with object’s list.
source = url_search_params->to_string().to_byte_buffer();
// Set type to `application/x-www-form-urlencoded;charset=UTF-8`.
type = TRY(ByteBuffer::copy("application/x-www-form-urlencoded;charset=UTF-8"sv.bytes()));
type = TRY_OR_RETURN_OOM(window, ByteBuffer::copy("application/x-www-form-urlencoded;charset=UTF-8"sv.bytes()));
return {};
},
[&](String const& scalar_value_string) -> ErrorOr<void> {
[&](String const& scalar_value_string) -> DOM::ExceptionOr<void> {
// NOTE: AK::String is always UTF-8.
// Set source to the UTF-8 encoding of object.
source = scalar_value_string.to_byte_buffer();
// Set type to `text/plain;charset=UTF-8`.
type = TRY(ByteBuffer::copy("text/plain;charset=UTF-8"sv.bytes()));
type = TRY_OR_RETURN_OOM(window, ByteBuffer::copy("text/plain;charset=UTF-8"sv.bytes()));
return {};
},
[&](JS::Handle<Streams::ReadableStream> const& stream) -> DOM::ExceptionOr<void> {
// If keepalive is true, then throw a TypeError.
if (keepalive)
return DOM::SimpleException { DOM::SimpleExceptionType::TypeError, "Cannot extract body from stream when keepalive is set" };
// If object is disturbed or locked, then throw a TypeError.
if (stream->is_disturbed() || stream->is_locked())
return DOM::SimpleException { DOM::SimpleExceptionType::TypeError, "Cannot extract body from disturbed or locked stream" };
return {};
}));