strawberry-audio-player-win.../src/core/network.cpp

233 lines
6.8 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
*
* Strawberry is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Strawberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <QtGlobal>
#include <QCoreApplication>
#include <QObject>
#include <QStandardPaths>
#include <QMutex>
#include <QIODevice>
#include <QString>
#include <QUrl>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QNetworkDiskCache>
#include <QNetworkCacheMetaData>
#include <QAbstractNetworkCache>
#include "core/closure.h"
#include "network.h"
QMutex ThreadSafeNetworkDiskCache::sMutex;
QNetworkDiskCache *ThreadSafeNetworkDiskCache::sCache = nullptr;
ThreadSafeNetworkDiskCache::ThreadSafeNetworkDiskCache(QObject *parent)
: QAbstractNetworkCache(parent) {
QMutexLocker l(&sMutex);
if (!sCache) {
sCache = new QNetworkDiskCache;
#ifdef Q_OS_WIN32
sCache->setCacheDirectory(QStandardPaths::writableLocation(QStandardPaths::TempLocation) + "/strawberry/networkcache");
#else
sCache->setCacheDirectory(QStandardPaths::writableLocation(QStandardPaths::CacheLocation) + "/networkcache");
#endif
}
}
qint64 ThreadSafeNetworkDiskCache::cacheSize() const {
QMutexLocker l(&sMutex);
return sCache->cacheSize();
}
QIODevice *ThreadSafeNetworkDiskCache::data(const QUrl &url) {
QMutexLocker l(&sMutex);
return sCache->data(url);
}
void ThreadSafeNetworkDiskCache::insert(QIODevice *device) {
QMutexLocker l(&sMutex);
sCache->insert(device);
}
QNetworkCacheMetaData ThreadSafeNetworkDiskCache::metaData(const QUrl &url) {
QMutexLocker l(&sMutex);
return sCache->metaData(url);
}
QIODevice *ThreadSafeNetworkDiskCache::prepare(const QNetworkCacheMetaData &metaData) {
QMutexLocker l(&sMutex);
return sCache->prepare(metaData);
}
bool ThreadSafeNetworkDiskCache::remove(const QUrl &url) {
QMutexLocker l(&sMutex);
return sCache->remove(url);
}
void ThreadSafeNetworkDiskCache::updateMetaData(const QNetworkCacheMetaData &metaData) {
QMutexLocker l(&sMutex);
sCache->updateMetaData(metaData);
}
void ThreadSafeNetworkDiskCache::clear() {
QMutexLocker l(&sMutex);
sCache->clear();
}
NetworkAccessManager::NetworkAccessManager(QObject *parent)
: QNetworkAccessManager(parent) {
setCache(new ThreadSafeNetworkDiskCache(this));
}
QNetworkReply *NetworkAccessManager::createRequest(Operation op, const QNetworkRequest &request, QIODevice *outgoingData) {
QByteArray user_agent = QString("%1 %2").arg(QCoreApplication::applicationName(), QCoreApplication::applicationVersion()).toUtf8();
if (request.hasRawHeader("User-Agent")) {
// Append the existing user-agent set by a client collection (such as libmygpo-qt).
user_agent += " " + request.rawHeader("User-Agent");
}
QNetworkRequest new_request(request);
new_request.setRawHeader("User-Agent", user_agent);
if (op == QNetworkAccessManager::PostOperation && !new_request.header(QNetworkRequest::ContentTypeHeader).isValid()) {
new_request.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
}
// Prefer the cache unless the caller has changed the setting already
if (request.attribute(QNetworkRequest::CacheLoadControlAttribute).toInt() == QNetworkRequest::PreferNetwork) {
new_request.setAttribute(QNetworkRequest::CacheLoadControlAttribute, QNetworkRequest::PreferCache);
}
return QNetworkAccessManager::createRequest(op, new_request, outgoingData);
}
NetworkTimeouts::NetworkTimeouts(int timeout_msec, QObject *parent)
: QObject(parent), timeout_msec_(timeout_msec) {}
void NetworkTimeouts::AddReply(QNetworkReply *reply) {
if (timers_.contains(reply)) return;
connect(reply, SIGNAL(destroyed()), SLOT(ReplyFinished()));
connect(reply, SIGNAL(finished()), SLOT(ReplyFinished()));
timers_[reply] = startTimer(timeout_msec_);
}
void NetworkTimeouts::AddReply(RedirectFollower *reply) {
if (redirect_timers_.contains(reply)) {
return;
}
NewClosure(reply, SIGNAL(destroyed()), this, SLOT(RedirectFinished(RedirectFollower*)), reply);
NewClosure(reply, SIGNAL(finished()), this, SLOT(RedirectFinished(RedirectFollower*)), reply);
redirect_timers_[reply] = startTimer(timeout_msec_);
}
void NetworkTimeouts::ReplyFinished() {
QNetworkReply *reply = reinterpret_cast<QNetworkReply*>(sender());
if (timers_.contains(reply)) {
killTimer(timers_.take(reply));
}
}
void NetworkTimeouts::RedirectFinished(RedirectFollower *reply) {
if (redirect_timers_.contains(reply)) {
killTimer(redirect_timers_.take(reply));
}
}
void NetworkTimeouts::timerEvent(QTimerEvent *e) {
QNetworkReply *reply = timers_.key(e->timerId());
if (reply) {
reply->abort();
}
RedirectFollower *redirect = redirect_timers_.key(e->timerId());
if (redirect) {
redirect->abort();
}
}
RedirectFollower::RedirectFollower(QNetworkReply *first_reply, int max_redirects) : QObject(nullptr), current_reply_(first_reply), redirects_remaining_(max_redirects) {
ConnectReply(first_reply);
}
void RedirectFollower::ConnectReply(QNetworkReply *reply) {
connect(reply, SIGNAL(readyRead()), SLOT(ReadyRead()));
connect(reply, SIGNAL(error(QNetworkReply::NetworkError)), SIGNAL(error(QNetworkReply::NetworkError)));
connect(reply, SIGNAL(downloadProgress(qint64,qint64)), SIGNAL(downloadProgress(qint64,qint64)));
connect(reply, SIGNAL(uploadProgress(qint64,qint64)), SIGNAL(uploadProgress(qint64,qint64)));
connect(reply, SIGNAL(finished()), SLOT(ReplyFinished()));
}
void RedirectFollower::ReadyRead() {
// Don't re-emit this signal for redirect replies.
if (current_reply_->attribute(QNetworkRequest::RedirectionTargetAttribute).isValid()) {
return;
}
emit readyRead();
}
void RedirectFollower::ReplyFinished() {
current_reply_->deleteLater();
if (current_reply_->attribute(QNetworkRequest::RedirectionTargetAttribute).isValid()) {
if (redirects_remaining_-- == 0) {
emit finished();
return;
}
const QUrl next_url = current_reply_->url().resolved(current_reply_->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl());
QNetworkRequest req(current_reply_->request());
req.setUrl(next_url);
current_reply_ = current_reply_->manager()->get(req);
ConnectReply(current_reply_);
return;
}
emit finished();
}