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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. 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.
*
* 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 HOLDER 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 <LibJS/Runtime/Function.h>
#include <LibWeb/Bindings/EventWrapper.h>
#include <LibWeb/Bindings/EventWrapperFactory.h>
#include <LibWeb/Bindings/XMLHttpRequestWrapper.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Event.h>
#include <LibWeb/DOM/EventDispatcher.h>
#include <LibWeb/DOM/EventListener.h>
#include <LibWeb/DOM/Window.h>
#include <LibWeb/DOM/XMLHttpRequest.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/Loader/ResourceLoader.h>
#include <LibWeb/Origin.h>
namespace Web {
XMLHttpRequest::XMLHttpRequest(DOM::Window& window)
: EventTarget(static_cast<Bindings::ScriptExecutionContext&>(window.document()))
, m_window(window)
{
}
XMLHttpRequest::~XMLHttpRequest()
{
}
void XMLHttpRequest::set_ready_state(ReadyState ready_state)
{
// FIXME: call onreadystatechange once we have that
m_ready_state = ready_state;
}
String XMLHttpRequest::response_text() const
{
if (m_response.is_null())
return {};
return String::copy(m_response);
}
void XMLHttpRequest::open(const String& method, const String& url)
{
m_method = method;
m_url = url;
set_ready_state(ReadyState::Opened);
}
void XMLHttpRequest::send()
{
URL request_url = m_window->document().complete_url(m_url);
dbg() << "XHR send from " << m_window->document().url() << " to " << request_url;
// TODO: Add support for preflight requests to support CORS requests
Origin request_url_origin = Origin(request_url.protocol(), request_url.host(), request_url.port());
if (!m_window->document().origin().is_same(request_url_origin)) {
dbg() << "XHR failed to load: Same-Origin Policy violation: " << m_window->document().url() << " may not load " << request_url;
auto weak_this = make_weak_ptr();
if (!weak_this)
return;
const_cast<XMLHttpRequest&>(*weak_this).set_ready_state(ReadyState::Done);
const_cast<XMLHttpRequest&>(*weak_this).dispatch_event(DOM::Event::create(HTML::EventNames::error));
return;
}
// FIXME: in order to properly set ReadyState::HeadersReceived and ReadyState::Loading,
// we need to make ResourceLoader give us more detailed updates than just "done" and "error".
ResourceLoader::the().load(
m_window->document().complete_url(m_url),
[weak_this = make_weak_ptr()](auto data, auto&) {
if (!weak_this)
return;
const_cast<XMLHttpRequest&>(*weak_this).m_response = ByteBuffer::copy(data);
const_cast<XMLHttpRequest&>(*weak_this).set_ready_state(ReadyState::Done);
const_cast<XMLHttpRequest&>(*weak_this).dispatch_event(DOM::Event::create(HTML::EventNames::load));
},
[weak_this = make_weak_ptr()](auto& error) {
if (!weak_this)
return;
dbg() << "XHR failed to load: " << error;
const_cast<XMLHttpRequest&>(*weak_this).set_ready_state(ReadyState::Done);
const_cast<XMLHttpRequest&>(*weak_this).dispatch_event(DOM::Event::create(HTML::EventNames::error));
});
}
bool XMLHttpRequest::dispatch_event(NonnullRefPtr<DOM::Event> event)
{
return DOM::EventDispatcher::dispatch(*this, move(event));
}
Bindings::EventTargetWrapper* XMLHttpRequest::create_wrapper(JS::GlobalObject& global_object)
{
return wrap(global_object, *this);
}
}
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