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/*
* Copyright (c) 2022, Linus Groh <linusg@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibJS/Runtime/PromiseCapability.h>
#include <LibWeb/Bindings/MainThreadVM.h>
#include <LibWeb/Fetch/BodyInit.h>
#include <LibWeb/Fetch/Infrastructure/HTTP/Bodies.h>
#include <LibWeb/WebIDL/Promise.h>
namespace Web::Fetch::Infrastructure {
Body::Body(JS::Handle<Streams::ReadableStream> stream)
: m_stream(move(stream))
{
}
Body::Body(JS::Handle<Streams::ReadableStream> stream, SourceType source, Optional<u64> length)
: m_stream(move(stream))
, m_source(move(source))
, m_length(move(length))
{
}
// https://fetch.spec.whatwg.org/#concept-body-clone
WebIDL::ExceptionOr<Body> Body::clone() const
{
// To clone a body body, run these steps:
auto& vm = Bindings::main_thread_vm();
auto& realm = *vm.current_realm();
// FIXME: 1. Let « out1, out2 » be the result of teeing body’s stream.
// FIXME: 2. Set body’s stream to out1.
auto out2 = MUST_OR_THROW_OOM(vm.heap().allocate<Streams::ReadableStream>(realm, realm));
// 3. Return a body whose stream is out2 and other members are copied from body.
return Body { JS::make_handle(out2), m_source, m_length };
}
// https://fetch.spec.whatwg.org/#fully-reading-body-as-promise
JS::NonnullGCPtr<WebIDL::Promise> Body::fully_read_as_promise() const
{
auto& vm = Bindings::main_thread_vm();
auto& realm = *vm.current_realm();
// FIXME: Implement the streams spec - this is completely made up for now :^)
if (auto const* byte_buffer = m_source.get_pointer<ByteBuffer>()) {
auto result = DeprecatedString::copy(*byte_buffer);
return WebIDL::create_resolved_promise(realm, JS::PrimitiveString::create(vm, move(result)));
}
// Empty, Blob, FormData
return WebIDL::create_rejected_promise(realm, JS::InternalError::create(realm, "Reading body isn't fully implemented"sv));
}
// https://fetch.spec.whatwg.org/#byte-sequence-as-a-body
WebIDL::ExceptionOr<Body> byte_sequence_as_body(JS::Realm& realm, ReadonlyBytes bytes)
{
// To get a byte sequence bytes as a body, return the body of the result of safely extracting bytes.
auto [body, _] = TRY(safely_extract_body(realm, bytes));
return body;
}
}
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