479 lines
16 KiB
C++
479 lines
16 KiB
C++
/*
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* Strawberry Music Player
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* Copyright 2019-2021, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "config.h"
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#include <memory>
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#include <QtGlobal>
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#include <QObject>
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#include <QByteArray>
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#include <QList>
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#include <QString>
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#include <QVariant>
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#include <QUrl>
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#include <QUrlQuery>
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#include <QNetworkAccessManager>
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#include <QNetworkRequest>
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#include <QNetworkReply>
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#include <QSslConfiguration>
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#include <QSslSocket>
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#include <QSslError>
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#include <QCryptographicHash>
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#include <QJsonValue>
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#include <QJsonDocument>
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#include <QJsonObject>
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#include <QSettings>
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#include <QSortFilterProxyModel>
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#include "core/logging.h"
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#include "core/shared_ptr.h"
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#include "core/application.h"
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#include "core/player.h"
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#include "core/database.h"
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#include "core/song.h"
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#include "core/settings.h"
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#include "utilities/randutils.h"
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#include "collection/collectionbackend.h"
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#include "collection/collectionmodel.h"
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#include "subsonicservice.h"
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#include "subsonicurlhandler.h"
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#include "subsonicrequest.h"
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#include "subsonicscrobblerequest.h"
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#include "settings/settingsdialog.h"
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#include "settings/subsonicsettingspage.h"
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using std::make_unique;
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using std::make_shared;
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const Song::Source SubsonicService::kSource = Song::Source::Subsonic;
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const char *SubsonicService::kClientName = "Strawberry";
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const char *SubsonicService::kApiVersion = "1.11.0";
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namespace {
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constexpr char kSongsTable[] = "subsonic_songs";
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constexpr char kSongsFtsTable[] = "subsonic_songs_fts";
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constexpr int kMaxRedirects = 3;
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} // namespace
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SubsonicService::SubsonicService(Application *app, QObject *parent)
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: InternetService(Song::Source::Subsonic, QStringLiteral("Subsonic"), QStringLiteral("subsonic"), QLatin1String(SubsonicSettingsPage::kSettingsGroup), SettingsDialog::Page::Subsonic, app, parent),
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app_(app),
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url_handler_(new SubsonicUrlHandler(app, this)),
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collection_backend_(nullptr),
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collection_model_(nullptr),
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collection_sort_model_(new QSortFilterProxyModel(this)),
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http2_(false),
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verify_certificate_(false),
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download_album_covers_(true),
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auth_method_(SubsonicSettingsPage::AuthMethod::MD5),
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ping_redirects_(0) {
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app->player()->RegisterUrlHandler(url_handler_);
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// Backend
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collection_backend_ = make_shared<CollectionBackend>();
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collection_backend_->moveToThread(app_->database()->thread());
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collection_backend_->Init(app_->database(), app->task_manager(), Song::Source::Subsonic, QLatin1String(kSongsTable), QLatin1String(kSongsFtsTable));
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// Model
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collection_model_ = new CollectionModel(collection_backend_, app_, this);
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collection_sort_model_->setSourceModel(collection_model_);
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collection_sort_model_->setSortRole(CollectionModel::Role_SortText);
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collection_sort_model_->setDynamicSortFilter(true);
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collection_sort_model_->setSortLocaleAware(true);
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collection_sort_model_->sort(0);
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SubsonicService::ReloadSettings();
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}
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SubsonicService::~SubsonicService() {
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while (!replies_.isEmpty()) {
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QNetworkReply *reply = replies_.takeFirst();
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QObject::disconnect(reply, nullptr, this, nullptr);
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if (reply->isRunning()) reply->abort();
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reply->deleteLater();
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}
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}
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void SubsonicService::Exit() {
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QObject::connect(&*collection_backend_, &CollectionBackend::ExitFinished, this, &SubsonicService::ExitFinished);
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collection_backend_->ExitAsync();
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}
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void SubsonicService::ShowConfig() {
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app_->OpenSettingsDialogAtPage(SettingsDialog::Page::Subsonic);
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}
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void SubsonicService::ReloadSettings() {
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Settings s;
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s.beginGroup(SubsonicSettingsPage::kSettingsGroup);
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server_url_ = s.value("url").toUrl();
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username_ = s.value("username").toString();
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QByteArray password = s.value("password").toByteArray();
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if (password.isEmpty()) password_.clear();
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else password_ = QString::fromUtf8(QByteArray::fromBase64(password));
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http2_ = s.value("http2", false).toBool();
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verify_certificate_ = s.value("verifycertificate", false).toBool();
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download_album_covers_ = s.value("downloadalbumcovers", true).toBool();
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auth_method_ = static_cast<SubsonicSettingsPage::AuthMethod>(s.value("authmethod", static_cast<int>(SubsonicSettingsPage::AuthMethod::MD5)).toInt());
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s.endGroup();
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}
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void SubsonicService::SendPing() {
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SendPingWithCredentials(server_url_, username_, password_, auth_method_, false);
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}
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void SubsonicService::SendPingWithCredentials(QUrl url, const QString &username, const QString &password, const SubsonicSettingsPage::AuthMethod auth_method, const bool redirect) {
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if (!network_ || !redirect) {
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network_ = make_unique<QNetworkAccessManager>();
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network_->setRedirectPolicy(QNetworkRequest::NoLessSafeRedirectPolicy);
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ping_redirects_ = 0;
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}
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using Param = QPair<QString, QString>;
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using ParamList = QList<Param>;
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ParamList params = ParamList() << Param(QStringLiteral("c"), QLatin1String(kClientName))
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<< Param(QStringLiteral("v"), QLatin1String(kApiVersion))
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<< Param(QStringLiteral("f"), QStringLiteral("json"))
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<< Param(QStringLiteral("u"), username);
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if (auth_method == SubsonicSettingsPage::AuthMethod::Hex) {
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params << Param(QStringLiteral("p"), QStringLiteral("enc:") + QString::fromLatin1(password.toUtf8().toHex()));
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}
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else {
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const QString salt = Utilities::CryptographicRandomString(20);
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QCryptographicHash md5(QCryptographicHash::Md5);
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md5.addData(password.toUtf8());
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md5.addData(salt.toUtf8());
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params << Param(QStringLiteral("s"), salt);
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params << Param(QStringLiteral("t"), QString::fromLatin1(md5.result().toHex()));
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}
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QUrlQuery url_query(url.query());
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for (const Param ¶m : params) {
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url_query.addQueryItem(QString::fromLatin1(QUrl::toPercentEncoding(param.first)), QString::fromLatin1(QUrl::toPercentEncoding(param.second)));
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}
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if (!redirect) {
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if (!url.path().isEmpty() && url.path().right(1) == QStringLiteral("/")) {
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url.setPath(url.path() + QStringLiteral("rest/ping.view"));
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}
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else {
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url.setPath(url.path() + QStringLiteral("/rest/ping.view"));
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}
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}
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url.setQuery(url_query);
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QNetworkRequest req(url);
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if (url.scheme() == QStringLiteral("https") && !verify_certificate_) {
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QSslConfiguration sslconfig = QSslConfiguration::defaultConfiguration();
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sslconfig.setPeerVerifyMode(QSslSocket::VerifyNone);
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req.setSslConfiguration(sslconfig);
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}
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req.setAttribute(QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::NoLessSafeRedirectPolicy);
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req.setHeader(QNetworkRequest::ContentTypeHeader, QStringLiteral("application/x-www-form-urlencoded"));
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#if QT_VERSION >= QT_VERSION_CHECK(5, 15, 0)
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req.setAttribute(QNetworkRequest::Http2AllowedAttribute, http2_);
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#endif
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errors_.clear();
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QNetworkReply *reply = network_->get(req);
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replies_ << reply;
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QObject::connect(reply, &QNetworkReply::sslErrors, this, &SubsonicService::HandlePingSSLErrors);
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QObject::connect(reply, &QNetworkReply::finished, this, [this, reply, url, username, password, auth_method]() { HandlePingReply(reply, url, username, password, auth_method); });
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//qLog(Debug) << "Subsonic: Sending request" << url << url.query();
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}
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void SubsonicService::HandlePingSSLErrors(const QList<QSslError> &ssl_errors) {
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for (const QSslError &ssl_error : ssl_errors) {
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errors_ += ssl_error.errorString();
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}
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}
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void SubsonicService::HandlePingReply(QNetworkReply *reply, const QUrl &url, const QString &username, const QString &password, const SubsonicSettingsPage::AuthMethod auth_method) {
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Q_UNUSED(url);
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if (!replies_.contains(reply)) return;
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replies_.removeAll(reply);
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QObject::disconnect(reply, nullptr, this, nullptr);
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reply->deleteLater();
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if (reply->error() != QNetworkReply::NoError || reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() != 200) {
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if (reply->error() != QNetworkReply::NoError && reply->error() < 200) {
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// This is a network error, there is nothing more to do.
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PingError(QStringLiteral("%1 (%2)").arg(reply->errorString()).arg(reply->error()));
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return;
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}
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else {
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// Check for a valid redirect first.
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if (
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(
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reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 301 ||
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reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 302 ||
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reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 307
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)
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&&
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ping_redirects_ <= kMaxRedirects
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)
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{
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QUrl redirect_url = reply->attribute(QNetworkRequest::RedirectionTargetAttribute).toUrl();
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if (!redirect_url.isEmpty()) {
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++ping_redirects_;
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qLog(Debug) << "Redirecting ping request to" << redirect_url.toString(QUrl::RemoveQuery);
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SendPingWithCredentials(redirect_url, username, password, auth_method, true);
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return;
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}
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}
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// See if there is Json data containing "error" - then use that instead.
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const QByteArray data = reply->readAll();
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QJsonParseError parse_error;
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QJsonDocument json_doc = QJsonDocument::fromJson(data, &parse_error);
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if (parse_error.error == QJsonParseError::NoError && !json_doc.isEmpty() && json_doc.isObject()) {
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QJsonObject json_obj = json_doc.object();
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if (!json_obj.isEmpty() && json_obj.contains(QStringLiteral("error"))) {
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QJsonValue json_error = json_obj[QStringLiteral("error")];
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if (json_error.isObject()) {
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json_obj = json_error.toObject();
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if (!json_obj.isEmpty() && json_obj.contains(QStringLiteral("code")) && json_obj.contains(QStringLiteral("message"))) {
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int code = json_obj[QStringLiteral("code")].toInt();
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QString message = json_obj[QStringLiteral("message")].toString();
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errors_ << QStringLiteral("%1 (%2)").arg(message).arg(code);
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}
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}
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}
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}
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if (errors_.isEmpty()) {
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if (reply->error() != QNetworkReply::NoError) {
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errors_ << QStringLiteral("%1 (%2)").arg(reply->errorString()).arg(reply->error());
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}
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else {
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errors_ << QStringLiteral("Received HTTP code %1").arg(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt());
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}
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}
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PingError();
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return;
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}
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}
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errors_.clear();
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QByteArray data(reply->readAll());
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QJsonParseError json_error;
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QJsonDocument json_doc = QJsonDocument::fromJson(data, &json_error);
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if (json_error.error != QJsonParseError::NoError) {
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PingError(QStringLiteral("Ping reply from server missing Json data."));
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return;
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}
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if (json_doc.isEmpty()) {
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PingError(QStringLiteral("Ping reply from server has empty Json document."));
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return;
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}
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if (!json_doc.isObject()) {
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PingError(QStringLiteral("Ping reply from server has Json document that is not an object."), json_doc);
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return;
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}
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QJsonObject json_obj = json_doc.object();
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if (json_obj.isEmpty()) {
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PingError(QStringLiteral("Ping reply from server has empty Json object."), json_doc);
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return;
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}
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if (!json_obj.contains(QStringLiteral("subsonic-response"))) {
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PingError(QStringLiteral("Ping reply from server is missing subsonic-response"), json_obj);
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return;
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}
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QJsonValue value_response = json_obj[QStringLiteral("subsonic-response")];
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if (!value_response.isObject()) {
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PingError(QStringLiteral("Ping reply from server subsonic-response is not an object"), value_response);
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return;
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}
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QJsonObject obj_response = value_response.toObject();
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if (obj_response.contains(QStringLiteral("error"))) {
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QJsonValue value_error = obj_response[QStringLiteral("error")];
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if (!value_error.isObject()) {
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PingError(QStringLiteral("Authentication error reply from server is not an object"), value_error);
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return;
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}
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QJsonObject obj_error = value_error.toObject();
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if (!obj_error.contains(QStringLiteral("code")) || !obj_error.contains(QStringLiteral("message"))) {
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PingError(QStringLiteral("Authentication error reply from server is missing status or message"), json_obj);
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return;
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}
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//int status = obj_error["code"].toInt();
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QString message = obj_error[QStringLiteral("message")].toString();
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emit TestComplete(false, message);
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emit TestFailure(message);
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return;
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}
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if (!obj_response.contains(QStringLiteral("status"))) {
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PingError(QStringLiteral("Ping reply from server is missing status"), obj_response);
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return;
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}
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QString status = obj_response[QStringLiteral("status")].toString().toLower();
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QString message = obj_response[QStringLiteral("message")].toString();
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if (status == QStringLiteral("failed")) {
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emit TestComplete(false, message);
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emit TestFailure(message);
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return;
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}
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else if (status == QStringLiteral("ok")) {
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emit TestComplete(true);
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emit TestSuccess();
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return;
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}
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else {
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PingError(QStringLiteral("Ping reply status from server is unknown"), json_obj);
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return;
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}
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}
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void SubsonicService::CheckConfiguration() {
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if (server_url_.isEmpty()) {
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emit TestComplete(false, QStringLiteral("Missing Subsonic server url."));
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return;
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}
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if (username_.isEmpty()) {
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emit TestComplete(false, QStringLiteral("Missing Subsonic username."));
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return;
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}
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if (password_.isEmpty()) {
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emit TestComplete(false, QStringLiteral("Missing Subsonic password."));
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return;
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}
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}
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void SubsonicService::Scrobble(const QString &song_id, const bool submission, const QDateTime &time) {
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if (!server_url().isValid() || username().isEmpty() || password().isEmpty()) {
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return;
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}
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if (!scrobble_request_) {
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// We're doing requests every 30-240s the whole time, so keep reusing this instance
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scrobble_request_.reset(new SubsonicScrobbleRequest(this, url_handler_, app_), [](SubsonicScrobbleRequest *request) { request->deleteLater(); });
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}
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scrobble_request_->CreateScrobbleRequest(song_id, submission, time);
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}
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void SubsonicService::ResetSongsRequest() {
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if (songs_request_) {
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QObject::disconnect(&*songs_request_, nullptr, this, nullptr);
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QObject::disconnect(this, nullptr, &*songs_request_, nullptr);
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songs_request_.reset();
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}
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}
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void SubsonicService::GetSongs() {
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if (!server_url().isValid()) {
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emit SongsResults(SongMap(), tr("Server URL is invalid."));
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return;
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}
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if (username().isEmpty() || password().isEmpty()) {
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emit SongsResults(SongMap(), tr("Missing username or password."));
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return;
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}
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ResetSongsRequest();
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songs_request_.reset(new SubsonicRequest(this, url_handler_, app_), [](SubsonicRequest *request) { request->deleteLater(); });
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QObject::connect(&*songs_request_, &SubsonicRequest::Results, this, &SubsonicService::SongsResultsReceived);
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QObject::connect(&*songs_request_, &SubsonicRequest::UpdateStatus, this, &SubsonicService::SongsUpdateStatus);
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QObject::connect(&*songs_request_, &SubsonicRequest::ProgressSetMaximum, this, &SubsonicService::SongsProgressSetMaximum);
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QObject::connect(&*songs_request_, &SubsonicRequest::UpdateProgress, this, &SubsonicService::SongsUpdateProgress);
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songs_request_->GetAlbums();
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}
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void SubsonicService::DeleteSongs() {
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collection_backend_->DeleteAllAsync();
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}
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void SubsonicService::SongsResultsReceived(const SongMap &songs, const QString &error) {
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emit SongsResults(songs, error);
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ResetSongsRequest();
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}
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void SubsonicService::PingError(const QString &error, const QVariant &debug) {
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if (!error.isEmpty()) errors_ << error;
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QString error_html;
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for (const QString &e : errors_) {
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qLog(Error) << "Subsonic:" << e;
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error_html += e + QStringLiteral("<br />");
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}
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if (debug.isValid()) qLog(Debug) << debug;
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emit TestFailure(error_html);
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emit TestComplete(false, error_html);
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errors_.clear();
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}
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