120 lines
3.4 KiB
C++
120 lines
3.4 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2012, David Sansome <me@davidsansome.com>
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* Copyright 2012, 2014, John Maguire <john.maguire@gmail.com>
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* Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
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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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#ifndef PODCASTURLLOADER_H
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#define PODCASTURLLOADER_H
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#include <QObject>
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#include <QRegularExpression>
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#include "opmlcontainer.h"
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#include "podcast.h"
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class PodcastParser;
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class QNetworkAccessManager;
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class QNetworkReply;
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class PodcastUrlLoaderReply : public QObject {
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Q_OBJECT
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public:
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PodcastUrlLoaderReply(const QUrl& url, QObject* parent);
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enum ResultType { Type_Podcast,
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Type_Opml };
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const QUrl& url() const { return url_; }
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bool is_finished() const { return finished_; }
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bool is_success() const { return error_text_.isEmpty(); }
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const QString& error_text() const { return error_text_; }
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ResultType result_type() const { return result_type_; }
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const PodcastList& podcast_results() const { return podcast_results_; }
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const OpmlContainer& opml_results() const { return opml_results_; }
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void SetFinished(const QString& error_text);
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void SetFinished(const PodcastList& results);
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void SetFinished(const OpmlContainer& results);
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signals:
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void Finished(bool success);
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private:
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QUrl url_;
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bool finished_;
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QString error_text_;
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ResultType result_type_;
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PodcastList podcast_results_;
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OpmlContainer opml_results_;
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};
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class PodcastUrlLoader : public QObject {
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Q_OBJECT
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public:
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explicit PodcastUrlLoader(QObject* parent = nullptr);
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~PodcastUrlLoader();
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static const int kMaxRedirects;
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PodcastUrlLoaderReply* Load(const QString& url_text);
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PodcastUrlLoaderReply* Load(const QUrl& url);
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// Both the FixPodcastUrl functions replace common podcatcher URL schemes
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// like itpc:// or zune:// with their http:// equivalents. The QString
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// overload also cleans up user-entered text a bit - stripping whitespace and
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// applying shortcuts like sc:tag.
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static QUrl FixPodcastUrl(const QString& url_text);
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static QUrl FixPodcastUrl(const QUrl& url);
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private:
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struct RequestState {
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int redirects_remaining_;
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PodcastUrlLoaderReply* reply_;
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};
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typedef QPair<QString, QString> QuickPrefix;
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typedef QList<QuickPrefix> QuickPrefixList;
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private slots:
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void RequestFinished(RequestState* state, QNetworkReply* reply);
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private:
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void SendErrorAndDelete(const QString& error_text, RequestState* state);
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void NextRequest(const QUrl& url, RequestState* state);
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private:
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QNetworkAccessManager* network_;
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PodcastParser* parser_;
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QRegularExpression html_link_re_;
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QRegularExpression whitespace_re_;
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QRegularExpression html_link_rel_re_;
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QRegularExpression html_link_type_re_;
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QRegularExpression html_link_href_re_;
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};
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#endif // PODCASTURLLOADER_H
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