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// SPDX-FileCopyrightText: 2021 Nheko Contributors
//
// SPDX-License-Identifier: GPL-3.0-or-later
#include "MxcMediaProxy.h"
#include <QDir>
#include <QFile>
#include <QFileInfo>
#include <QMediaObject>
#include <QMediaPlayer>
#include <QMimeDatabase>
#include <QStandardPaths>
#include <QUrl>
#include "EventAccessors.h"
#include "Logging.h"
#include "MatrixClient.h"
#include "timeline/TimelineModel.h"
void
MxcMediaProxy::setVideoSurface(QAbstractVideoSurface *surface)
{
qDebug() << "Changing surface";
m_surface = surface;
setVideoOutput(m_surface);
}
QAbstractVideoSurface *
MxcMediaProxy::getVideoSurface()
{
return m_surface;
}
void
MxcMediaProxy::startDownload()
{
if (!room_)
return;
if (eventId_.isEmpty())
return;
auto event = room_->eventById(eventId_);
if (!event) {
nhlog::ui()->error("Failed to load media for event {}, event not found.",
eventId_.toStdString());
return;
}
QString mxcUrl = QString::fromStdString(mtx::accessors::url(*event));
QString originalFilename = QString::fromStdString(mtx::accessors::filename(*event));
QString mimeType = QString::fromStdString(mtx::accessors::mimetype(*event));
auto encryptionInfo = mtx::accessors::file(*event);
// If the message is a link to a non mxcUrl, don't download it
if (!mxcUrl.startsWith("mxc://")) {
return;
}
QString suffix = QMimeDatabase().mimeTypeForName(mimeType).preferredSuffix();
const auto url = mxcUrl.toStdString();
const auto name = QString(mxcUrl).remove("mxc://");
QFileInfo filename(QString("%1/media_cache/media/%2.%3")
.arg(QStandardPaths::writableLocation(QStandardPaths::CacheLocation))
.arg(name)
.arg(suffix));
if (QDir::cleanPath(name) != name) {
nhlog::net()->warn("mxcUrl '{}' is not safe, not downloading file", url);
return;
}
QDir().mkpath(filename.path());
QPointer<MxcMediaProxy> self = this;
auto processBuffer = [this, encryptionInfo, filename, self](QIODevice &device) {
if (!self)
return;
if (encryptionInfo) {
QByteArray ba = device.readAll();
std::string temp(ba.constData(), ba.size());
temp = mtx::crypto::to_string(
mtx::crypto::decrypt_file(temp, encryptionInfo.value()));
buffer.setData(temp.data(), temp.size());
} else {
buffer.setData(device.readAll());
}
buffer.open(QIODevice::ReadOnly);
buffer.reset();
QTimer::singleShot(0, this, [this, self, filename] {
nhlog::ui()->info("Playing buffer with size: {}, {}",
buffer.bytesAvailable(),
buffer.isOpen());
self->setMedia(QMediaContent(filename.fileName()), &buffer);
emit loadedChanged();
});
};
if (filename.isReadable()) {
QFile f(filename.filePath());
if (f.open(QIODevice::ReadOnly)) {
processBuffer(f);
return;
}
}
http::client()->download(
url,
[filename, url, processBuffer](const std::string &data,
const std::string &,
const std::string &,
mtx::http::RequestErr err) {
if (err) {
nhlog::net()->warn("failed to retrieve media {}: {} {}",
url,
err->matrix_error.error,
static_cast<int>(err->status_code));
return;
}
try {
QFile file(filename.filePath());
if (!file.open(QIODevice::WriteOnly))
return;
QByteArray ba(data.data(), (int)data.size());
file.write(ba);
file.close();
QBuffer buf(&ba);
buf.open(QBuffer::ReadOnly);
processBuffer(buf);
} catch (const std::exception &e) {
nhlog::ui()->warn("Error while saving file to: {}", e.what());
}
});
}
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