220 lines
6.7 KiB
C++
220 lines
6.7 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 <QPair>
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#include <QList>
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#include <QString>
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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 <QJsonDocument>
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#include <QJsonObject>
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#include <QJsonValue>
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#include "subsonicservice.h"
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#include "subsonicbaserequest.h"
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SubsonicBaseRequest::SubsonicBaseRequest(SubsonicService *service, QObject *parent) :
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QObject(parent),
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service_(service),
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network_(new QNetworkAccessManager) {
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 9, 0))
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network_->setRedirectPolicy(QNetworkRequest::NoLessSafeRedirectPolicy);
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#endif
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}
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QUrl SubsonicBaseRequest::CreateUrl(const QString &ressource_name, const QList<Param> ¶ms_provided) {
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ParamList params = ParamList() << params_provided
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<< Param("c", client_name())
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<< Param("v", api_version())
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<< Param("f", "json")
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<< Param("u", username())
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<< Param("p", QString("enc:" + password().toUtf8().toHex()));
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QUrlQuery url_query;
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for (const Param ¶m : params) {
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EncodedParam encoded_param(QUrl::toPercentEncoding(param.first), QUrl::toPercentEncoding(param.second));
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url_query.addQueryItem(encoded_param.first, encoded_param.second);
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}
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QUrl url(server_url());
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if (!url.path().isEmpty() && url.path().right(1) == "/") {
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url.setPath(url.path() + QString("rest/") + ressource_name + QString(".view"));
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}
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else
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url.setPath(url.path() + QString("/rest/") + ressource_name + QString(".view"));
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url.setQuery(url_query);
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return url;
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}
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QNetworkReply *SubsonicBaseRequest::CreateGetRequest(const QString &ressource_name, const QList<Param> ¶ms_provided) {
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QUrl url = CreateUrl(ressource_name, params_provided);
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QNetworkRequest req(url);
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if (url.scheme() == "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.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");
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#if QT_VERSION >= QT_VERSION_CHECK(5, 9, 0)
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req.setAttribute(QNetworkRequest::RedirectPolicyAttribute, QNetworkRequest::NoLessSafeRedirectPolicy);
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#else
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req.setAttribute(QNetworkRequest::FollowRedirectsAttribute, true);
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#endif
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QNetworkReply *reply = network_->get(req);
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QObject::connect(reply, &QNetworkReply::sslErrors, this, &SubsonicBaseRequest::HandleSSLErrors);
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//qLog(Debug) << "Subsonic: Sending request" << url;
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return reply;
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}
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void SubsonicBaseRequest::HandleSSLErrors(QList<QSslError> ssl_errors) {
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for (QSslError &ssl_error : ssl_errors) {
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Error(ssl_error.errorString());
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}
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}
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QByteArray SubsonicBaseRequest::GetReplyData(QNetworkReply *reply) {
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QByteArray data;
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if (reply->error() == QNetworkReply::NoError && reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt() == 200) {
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data = reply->readAll();
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}
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else {
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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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Error(QString("%1 (%2)").arg(reply->errorString()).arg(reply->error()));
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}
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else {
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// See if there is Json data containing "error" - then use that instead.
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data = reply->readAll();
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QString error;
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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("error")) {
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QJsonValue json_error = json_obj["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("code") && json_obj.contains("message")) {
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int code = json_obj["code"].toInt();
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QString message = json_obj["message"].toString();
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error = QString("%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 (error.isEmpty()) {
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if (reply->error() != QNetworkReply::NoError) {
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error = QString("%1 (%2)").arg(reply->errorString()).arg(reply->error());
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}
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else {
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error = QString("Received HTTP code %1").arg(reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt());
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}
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}
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Error(error);
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}
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}
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return data;
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}
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QJsonObject SubsonicBaseRequest::ExtractJsonObj(QByteArray &data) {
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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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Error("Reply from server missing Json data.", data);
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return QJsonObject();
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}
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if (json_doc.isNull() || json_doc.isEmpty()) {
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Error("Received empty Json document.", data);
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return QJsonObject();
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}
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if (!json_doc.isObject()) {
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Error("Json document is not an object.", json_doc);
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return QJsonObject();
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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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Error("Received empty Json object.", json_doc);
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return QJsonObject();
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}
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if (!json_obj.contains("subsonic-response")) {
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Error("Json reply is missing subsonic-response.", json_obj);
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return QJsonObject();
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}
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QJsonValue json_response = json_obj["subsonic-response"];
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if (!json_response.isObject()) {
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Error("Json response is not an object.", json_response);
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return QJsonObject();
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}
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json_obj = json_response.toObject();
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return json_obj;
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}
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QString SubsonicBaseRequest::ErrorsToHTML(const QStringList &errors) {
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QString error_html;
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for (const QString &error : errors) {
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error_html += error + "<br />";
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}
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return error_html;
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}
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