ladybird/Libraries/LibWeb/HTML/HTMLFormElement.cpp
Andreas Kling 81add73955 LibWeb: Make Frame point weakly to Page
This patch makes Page weakable and allows page-less frames to exist.

Page is single-owner, and Frame is multiple-owner, so it's not sound
for Frame to assume its containing Page will stick around for its own
entire lifetime.

Fixes #3976.
2020-11-12 18:29:55 +01:00

112 lines
3.9 KiB
C++

/*
* Copyright (c) 2018-2020, 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 <AK/StringBuilder.h>
#include <LibWeb/HTML/HTMLFormElement.h>
#include <LibWeb/HTML/HTMLInputElement.h>
#include <LibWeb/InProcessWebView.h>
#include <LibWeb/Page/Frame.h>
#include <LibWeb/URLEncoder.h>
namespace Web::HTML {
HTMLFormElement::HTMLFormElement(DOM::Document& document, const QualifiedName& qualified_name)
: HTMLElement(document, qualified_name)
{
}
HTMLFormElement::~HTMLFormElement()
{
}
void HTMLFormElement::submit(RefPtr<HTMLInputElement> submitter)
{
if (action().is_null()) {
dbg() << "Unsupported form action ''";
return;
}
auto effective_method = method().to_lowercase();
if (effective_method == "dialog") {
dbg() << "Failed to submit form: Unsupported form method '" << method() << "'";
return;
}
if (effective_method != "get" && effective_method != "post") {
effective_method = "get";
}
URL url(document().complete_url(action()));
if (!url.is_valid()) {
dbg() << "Failed to submit form: Invalid URL: " << action();
return;
}
if (url.protocol() == "file") {
if (document().url().protocol() != "file") {
dbg() << "Failed to submit form: Security violation: " << document().url() << " may not submit to " << url;
return;
}
if (effective_method != "get") {
dbg() << "Failed to submit form: Unsupported form method '" << method() << "' for URL: " << url;
return;
}
} else if (url.protocol() != "http" && url.protocol() != "https") {
dbg() << "Failed to submit form: Unsupported protocol for URL: " << url;
return;
}
Vector<URLQueryParam> parameters;
for_each_in_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);
}
}