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/*
* Copyright (c) 2018-2021, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/StringBuilder.h>
#include <LibWeb/HTML/EventNames.h>
#include <LibWeb/HTML/HTMLFormElement.h>
#include <LibWeb/HTML/HTMLInputElement.h>
#include <LibWeb/HTML/SubmitEvent.h>
#include <LibWeb/InProcessWebView.h>
#include <LibWeb/Page/BrowsingContext.h>
#include <LibWeb/URLEncoder.h>
namespace Web::HTML {
HTMLFormElement::HTMLFormElement(DOM::Document& document, QualifiedName qualified_name)
: HTMLElement(document, move(qualified_name))
{
}
HTMLFormElement::~HTMLFormElement()
{
}
void HTMLFormElement::submit_form(RefPtr<HTMLElement> submitter, bool from_submit_binding)
{
if (cannot_navigate())
return;
if (action().is_null()) {
dbgln("Unsupported form action ''");
return;
}
auto effective_method = method().to_lowercase();
if (effective_method == "dialog") {
dbgln("Failed to submit form: Unsupported form method '{}'", method());
return;
}
if (effective_method != "get" && effective_method != "post") {
effective_method = "get";
}
if (!from_submit_binding) {
if (m_firing_submission_events)
return;
m_firing_submission_events = true;
// FIXME: If the submitter element's no-validate state is false...
RefPtr<HTMLElement> submitter_button;
if (submitter != this)
submitter_button = submitter;
auto submit_event = SubmitEvent::create(EventNames::submit, submitter_button);
submit_event->set_bubbles(true);
submit_event->set_cancelable(true);
bool continue_ = dispatch_event(submit_event);
m_firing_submission_events = false;
if (!continue_)
return;
// This is checked again because arbitrary JS may have run when handling submit,
// which may have changed the result.
if (cannot_navigate())
return;
}
URL url(document().complete_url(action()));
if (!url.is_valid()) {
dbgln("Failed to submit form: Invalid URL: {}", action());
return;
}
if (url.protocol() == "file") {
if (document().url().protocol() != "file") {
dbgln("Failed to submit form: Security violation: {} may not submit to {}", document().url(), url);
return;
}
if (effective_method != "get") {
dbgln("Failed to submit form: Unsupported form method '{}' for URL: {}", method(), url);
return;
}
} else if (url.protocol() != "http" && url.protocol() != "https") {
dbgln("Failed to submit form: Unsupported protocol for URL: {}", url);
return;
}
Vector<URLQueryParam> parameters;
for_each_in_inclusive_subtree_of_type<HTMLInputElement>([&](auto& node) {
auto& input = downcast<HTMLInputElement>(node);
if (!input.name().is_null() && (input.type() != "submit" || &input == submitter))
parameters.append({ input.name(), input.value() });
return IterationDecision::Continue;
});
if (effective_method == "get") {
url.set_query(urlencode(parameters));
}
LoadRequest request;
request.set_url(url);
if (effective_method == "post") {
auto body = urlencode(parameters).to_byte_buffer();
request.set_method("POST");
request.set_header("Content-Type", "application/x-www-form-urlencoded");
request.set_header("Content-Length", String::number(body.size()));
request.set_body(body);
}
if (auto* page = document().page())
page->load(request);
}
void HTMLFormElement::submit()
{
submit_form(this, true);
}
void HTMLFormElement::add_associated_element(Badge<FormAssociatedElement>, HTMLElement& element)
{
m_associated_elements.append(element);
}
void HTMLFormElement::remove_associated_element(Badge<FormAssociatedElement>, HTMLElement& element)
{
m_associated_elements.remove_first_matching([&](auto& entry) { return entry.ptr() == &element; });
}
}
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