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LibWeb: Let XHR::extract_body() return ErrorOr

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This is a minor refactor of XHR::extract_body() letting it return
ErrorOr<...> instead of just Fetch::Infrastructure::BodyWithType.

This also updates the one place extract_body() is used.
This commit is contained in:
Kenneth Myhra 2022-07-22 21:15:37 +02:00 • committed by Linus Groh
parent 9fe12c1851
commit 5830ff5be9
1 changed files with 13 additions and 10 deletions
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23
Userland/Libraries/LibWeb/XHR/XMLHttpRequest.cpp
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@ -257,7 +257,7 @@ Optional<StringView> XMLHttpRequest::get_final_encoding() const
// 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'.
static Fetch::Infrastructure::BodyWithType extract_body(XMLHttpRequestBodyInit const& body_init)
static ErrorOr<Fetch::Infrastructure::BodyWithType> extract_body(XMLHttpRequestBodyInit const& body_init)
{
// FIXME: 1. Let stream be object if object is a ReadableStream object. Otherwise, let stream be a new ReadableStream, and set up stream.
Fetch::Infrastructure::Body::ReadableStreamDummy stream {};
@ -271,8 +271,8 @@ static Fetch::Infrastructure::BodyWithType extract_body(XMLHttpRequestBodyInit c
// 6. Switch on object.
// FIXME: Still need to support BufferSource and FormData
body_init.visit(
[&](NonnullRefPtr<FileAPI::Blob> const& blob) {
TRY(body_init.visit(
[&](NonnullRefPtr<FileAPI::Blob> const& blob) -> ErrorOr<void> {
// FIXME: Set action to this step: read object.
// Set source to object.
source = blob;
@ -281,20 +281,23 @@ static Fetch::Infrastructure::BodyWithType extract_body(XMLHttpRequestBodyInit c
// If object’s type attribute is not the empty byte sequence, set type to its value.
if (!blob->type().is_empty())
type = blob->type().to_byte_buffer();
return {};
},
[&](NonnullRefPtr<URL::URLSearchParams> const& url_search_params) {
[&](NonnullRefPtr<URL::URLSearchParams> const& url_search_params) -> ErrorOr<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 = MUST(ByteBuffer::copy("application/x-www-form-urlencoded;charset=UTF-8"sv.bytes()));
type = TRY(ByteBuffer::copy("application/x-www-form-urlencoded;charset=UTF-8"sv.bytes()));
return {};
},
[&](String const& scalar_value_string) {
[&](String const& scalar_value_string) -> ErrorOr<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 = MUST(ByteBuffer::copy("text/plain;charset=UTF-8"sv.bytes()));
});
type = TRY(ByteBuffer::copy("text/plain;charset=UTF-8"sv.bytes()));
return {};
}));
// FIXME: 7. If source is a byte sequence, then set action to a step that returns source and length to source’s length.
// FIXME: 8. If action is non-null, then run these steps in in parallel:
@ -302,7 +305,7 @@ static Fetch::Infrastructure::BodyWithType extract_body(XMLHttpRequestBodyInit c
// 9. Let body be a body whose stream is stream, source is source, and length is length.
auto body = Fetch::Infrastructure::Body { move(stream), move(source), move(length) };
// 10. Return (body, type).
return { .body = move(body), .type = move(type) };
return Fetch::Infrastructure::BodyWithType { .body = move(body), .type = move(type) };
}
// https://xhr.spec.whatwg.org/#dom-xmlhttprequest-setrequestheader
@ -444,7 +447,7 @@ DOM::ExceptionOr<void> XMLHttpRequest::send(Optional<XMLHttpRequestBodyInit> bod
if (m_method.is_one_of("GET"sv, "HEAD"sv))
body = {};
auto body_with_type = body.has_value() ? extract_body(body.value()) : Optional<Fetch::Infrastructure::BodyWithType> {};
auto body_with_type = body.has_value() ? TRY_OR_RETURN_OOM(extract_body(body.value())) : Optional<Fetch::Infrastructure::BodyWithType> {};
AK::URL request_url = m_window->associated_document().parse_url(m_url.to_string());
dbgln("XHR send from {} to {}", m_window->associated_document().url(), request_url);