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/*
* 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/SharedBuffer.h>
#include <LibCore/CFile.h>
#include <LibHTML/ResourceLoader.h>
#include <LibProtocol/Client.h>
#include <LibProtocol/Download.h>
ResourceLoader& ResourceLoader::the()
{
static ResourceLoader* s_the;
if (!s_the)
s_the = &ResourceLoader::construct().leak_ref();
return *s_the;
}
ResourceLoader::ResourceLoader()
: m_protocol_client(LibProtocol::Client::construct())
{
}
void ResourceLoader::load(const URL& url, Function<void(const ByteBuffer&)> callback)
{
if (url.protocol() == "file") {
auto f = CFile::construct();
f->set_filename(url.path());
if (!f->open(CIODevice::OpenMode::ReadOnly)) {
dbg() << "ResourceLoader::load: Error: " << f->error_string();
callback({});
return;
}
auto data = f->read_all();
deferred_invoke([data = move(data), callback = move(callback)](auto&) {
callback(data);
});
return;
}
if (url.protocol() == "http") {
auto download = protocol_client().start_download(url.to_string());
download->on_finish = [this, callback = move(callback)](bool success, const ByteBuffer& payload, auto) {
--m_pending_loads;
if (on_load_counter_change)
on_load_counter_change();
if (!success) {
dbg() << "HTTP load failed!";
callback({});
return;
}
callback(ByteBuffer::copy(payload.data(), payload.size()));
};
++m_pending_loads;
if (on_load_counter_change)
on_load_counter_change();
return;
}
dbg() << "Unimplemented protocol: " << url.protocol();
ASSERT_NOT_REACHED();
}
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