/***************************************************************************
* Copyright (C) 2010 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* This program 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 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkProxy>
#include <QNetworkReply>
#include <QByteArray>
#include <QCryptographicHash>
#include <QUrl>
#include <QTime>
#include <QTimer>
#include <QDateTime>
#include <QDir>
#include <QDomDocument>
#include <QDesktopServices>
#include <QSettings>
#include <qmmp/soundcore.h>
#include <qmmp/qmmpsettings.h>
#include <qmmp/qmmp.h>
#include "scrobbler2.h"
#define API_KEY "d71c6f01b2ea562d7042bd5f5970041f"
#define SECRET "32d47bc0010473d40e1d38bdcff20968"
Scrobbler2::Scrobbler2(const QString &url, const QString &name, QObject *parent) : QObject(parent)
{
m_getTokenReply = 0;
m_getSessionReply = 0;
m_http = new QNetworkAccessManager(this);
m_state = Qmmp::Stopped;
m_server = url;
m_name = name;
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
m_session = settings.value("Scrobbler/lastfm_session").toString();
connect(QmmpSettings::instance(), SIGNAL(networkSettingsChanged()), SLOT(setupProxy()));
setupProxy();
connect(m_http, SIGNAL(finished (QNetworkReply *)), SLOT(processResponse(QNetworkReply *)));
m_core = SoundCore::instance();
connect (m_core, SIGNAL(metaDataChanged()), SLOT(updateMetaData()));
connect (m_core, SIGNAL(stateChanged (Qmmp::State)), SLOT(setState(Qmmp::State)));
m_time = new QTime();
m_submitedSongs = 0;
m_submitReply = 0;
m_notificationReply = 0;
m_ua = QString("qmmp-plugins/%1").arg(Qmmp::strVersion().toLower()).toAscii();
QFile file(QDir::homePath() +"/.qmmp/scrobbler_" + m_name + ".cache");
if (file.open(QIODevice::ReadOnly))
{
int s;
QString line, param, value;
while (!file.atEnd())
{
line = QString::fromUtf8(file.readLine()).trimmed();
if ((s = line.indexOf("=")) < 0)
continue;
param = line.left(s);
value = line.right(line.size() - s - 1);
if (param == "title")
{
m_songCache << SongInfo();
m_songCache.last().setMetaData(Qmmp::TITLE, value);
}
else if (m_songCache.isEmpty())
continue;
else if (param == "artist")
m_songCache.last().setMetaData(Qmmp::ARTIST, value);
else if (param == "album")
m_songCache.last().setMetaData(Qmmp::ALBUM, value);
else if (param == "comment")
m_songCache.last().setMetaData(Qmmp::COMMENT, value);
else if (param == "genre")
m_songCache.last().setMetaData(Qmmp::GENRE, value);
else if (param == "year")
m_songCache.last().setMetaData(Qmmp::YEAR, value);
else if (param == "track")
m_songCache.last().setMetaData(Qmmp::TRACK, value);
else if (param == "length")
m_songCache.last().setLength(value.toInt());
else if (param == "time")
m_songCache.last().setTimeStamp(value.toUInt());
}
file.close();
}
if(m_session.isEmpty())
getToken();
}
Scrobbler2::~Scrobbler2()
{
delete m_time;
syncCache();
}
void Scrobbler2::setState(Qmmp::State state)
{
m_state = state;
switch ((uint) state)
{
case Qmmp::Playing:
m_start_ts = QDateTime::currentDateTime().toTime_t();
m_time->restart();
break;
case Qmmp::Stopped:
if (!m_song.metaData().isEmpty()
&& ((m_time->elapsed ()/1000 > 240) || (m_time->elapsed ()/1000 > int(m_song.length()/2)))
&& (m_song.length() > MIN_SONG_LENGTH))
{
m_song.setTimeStamp(m_start_ts);
m_songCache << m_song;
syncCache();
}
m_song.clear();
if (m_songCache.isEmpty())
break;
if (!m_session.isEmpty() && !m_submitReply)
submit();
break;
default:
;
}
}
void Scrobbler2::updateMetaData()
{
QMap <Qmmp::MetaData, QString> metadata = m_core->metaData();
if (m_state == Qmmp::Playing
&& !metadata.value(Qmmp::TITLE).isEmpty() //skip empty tags
&& !metadata.value(Qmmp::ARTIST).isEmpty()
&& m_core->totalTime()) //skip stream
{
m_song = SongInfo(metadata, m_core->totalTime()/1000);
if (!m_session.isEmpty() && !m_notificationReply && !m_submitReply)
sendNotification(m_song);
}
}
void Scrobbler2::processResponse(QNetworkReply *reply)
{
QString data = QString::fromUtf8(reply->readAll());
if (reply->error() != QNetworkReply::NoError)
{
qWarning("Scrobbler2[%s]: http error: %s", qPrintable(m_name), qPrintable(reply->errorString()));
}
QDomDocument document;
document.setContent(data);
QDomElement root = document.documentElement();
QString error_code;
QString status = root.attribute("status");
if(status != "ok" && !status.isEmpty())
{
QDomElement error = root.firstChildElement("error");
if(!error.isNull())
{
qWarning("Scrobbler2[%s]: status=%s, %s-%s", qPrintable(m_name), qPrintable(status),
qPrintable(error.attribute("code")), qPrintable(error.text()));
error_code = error.attribute("code");
}
else
qWarning("Scrobbler2[%s]: invalid content", qPrintable(m_name));
}
data = data.trimmed();
if (reply == m_getTokenReply)
{
m_getTokenReply = 0;
if(status == "ok")
{
m_token = root.firstChildElement("token").text();
qDebug("Scrobbler2[%s]: token: %s", qPrintable(m_name), qPrintable(m_token));
QDesktopServices::openUrl("http://www.last.fm/api/auth/?api_key="API_KEY"&token="+m_token);
QTimer::singleShot(120000, this, SLOT(getSession())); //2 minutes
}
else if(error_code == "8" || error_code == "7" || error_code == "11" || error_code.isEmpty())
{
m_token.clear();
QTimer::singleShot(120000, this, SLOT(getToken())); // wait 2 minutes and try again
}
else
{
m_token.clear();
qWarning("Scrobbler2[%s]: service returned unrecoverable error, scrobbling disabled",
qPrintable(m_name));
}
}
else if(reply == m_getSessionReply)
{
m_getSessionReply = 0;
m_session.clear();
if(status == "ok")
{
QDomElement session = root.firstChildElement("session");
m_session = session.firstChildElement("key").text();
QString name = session.firstChildElement("name").text();
QString subscriber = session.firstChildElement("subscriber").text();
qDebug("Scrobbler2[%s]: name: %s", qPrintable(m_name),qPrintable(name));
qDebug("Scrobbler2[%s]: key: %s", qPrintable(m_name), qPrintable(m_session));
qDebug("Scrobbler2[%s]: subscriber: %s",qPrintable(m_name), qPrintable(subscriber));
QSettings settings(Qmmp::configFile(), QSettings::IniFormat);
settings.setValue("Scrobbler/lastfm_session", m_session);
}
else if(error_code == "4" || error_code == "15") //invalid token
{
m_token.clear();
getToken();
}
else if(error_code == "11") //service offline
{
QTimer::singleShot(120000, this, SLOT(getSession()));
}
else if(error_code == "14") // unauthorized token
{
QDesktopServices::openUrl("http://www.last.fm/api/auth/?api_key="API_KEY"&token="+m_token);
QTimer::singleShot(120000, this, SLOT(getSession())); //2 minutes
}
else if (error_code.isEmpty()) //network error
{
QTimer::singleShot(120000, this, SLOT(getSession()));
}
else
{
m_token.clear();
qWarning("Scrobbler2[%s]: service returned unrecoverable error, scrobbling disabled",
qPrintable(m_name));
}
}
else if (reply == m_submitReply)
{
m_submitReply = 0;
if (status == "ok")
{
qDebug("Scrobbler2[%s]: submited %d song(s)",qPrintable(m_name), m_submitedSongs);
while (m_submitedSongs)
{
m_submitedSongs--;
m_songCache.removeFirst ();
}
if (!m_songCache.isEmpty()) //submit remaining songs
submit();
else
updateMetaData();
}
else if(error_code == "9") //invalid session key
{
m_session.clear();
getToken();
}
else if(error_code == "11" || error_code == "16" || error_code.isEmpty()) //unavailable
{
QTimer::singleShot(120000, this, SLOT(submit()));
}
else
{
m_session.clear();
qWarning("Scrobbler2[%s]: service returned unrecoverable error, scrobbling disabled",
qPrintable(m_name));
}
}
else if (reply == m_notificationReply)
{
m_notificationReply = 0;
if(status == "ok")
{
qDebug("Scrobbler2[%s]: Now-Playing notification done", qPrintable(m_name));
}
else if(error_code == "9") //invalid session key
{
m_session.clear();
getToken();
}
}
reply->deleteLater();
}
void Scrobbler2::setupProxy()
{
QmmpSettings *gs = QmmpSettings::instance();
if (gs->isProxyEnabled())
{
QNetworkProxy proxy(QNetworkProxy::HttpProxy, gs->proxy().host(), gs->proxy().port());
if(gs->useProxyAuth())
{
proxy.setUser(gs->proxy().userName());
proxy.setPassword(gs->proxy().password());
}
m_http->setProxy(proxy);
}
else
m_http->setProxy(QNetworkProxy::NoProxy);
}
void Scrobbler2::getToken()
{
qDebug("%s", Q_FUNC_INFO);
QUrl url(QString("http://") + m_server + "/?");
url.setPort(80);
url.addQueryItem("method", "auth.getToken");
url.addQueryItem("api_key", API_KEY);
QByteArray data;
data.append("api_key"API_KEY);
data.append("methodauth.getToken");
data.append(SECRET);
url.addQueryItem("api_sig", QCryptographicHash::hash(data,QCryptographicHash::Md5).toHex());
QNetworkRequest request(url);
request.setRawHeader("User-Agent", m_ua);
request.setRawHeader("Host",url.host().toAscii());
request.setRawHeader("Accept", "*/*");
m_getTokenReply = m_http->get(request);
}
void Scrobbler2::getSession()
{
qDebug("%s", Q_FUNC_INFO);
QUrl url(QString("http://") + m_server + "/?");
url.setPort(80);
url.addQueryItem("api_key", API_KEY);
url.addQueryItem("method", "auth.getSession");
url.addQueryItem("token", m_token);
QByteArray data;
data.append("api_key"API_KEY);
data.append("methodauth.getSession");
data.append("token" + m_token.toUtf8());
data.append(SECRET);
url.addQueryItem("api_sig", QCryptographicHash::hash(data, QCryptographicHash::Md5).toHex());
QNetworkRequest request(url);
request.setRawHeader("User-Agent", m_ua);
request.setRawHeader("Host",url.host().toAscii());
request.setRawHeader("Accept", "*/*");
m_getSessionReply = m_http->get(request);
}
void Scrobbler2::submit()
{
qDebug("Scrobbler2[%s]: submit request", qPrintable(m_name));
if (m_songCache.isEmpty() || m_session.isEmpty())
return;
m_submitedSongs = qMin(m_songCache.size(),25);
QMap <QString, QString> params;
for (int i = 0; i < m_submitedSongs; ++i)
{
SongInfo info = m_songCache[i];
params.insert(QString("track[%1]").arg(i),info.metaData(Qmmp::TITLE));
params.insert(QString("timestamp[%1]").arg(i),QString("%1").arg(info.timeStamp()));
params.insert(QString("artist[%1]").arg(i),info.metaData(Qmmp::ARTIST));
if(!info.metaData(Qmmp::ALBUM).isEmpty())
params.insert(QString("album[%1]").arg(i),info.metaData(Qmmp::ALBUM));
if(!info.metaData(Qmmp::TRACK).isEmpty())
params.insert(QString("trackNumber[%1]").arg(i),info.metaData(Qmmp::TRACK));
params.insert(QString("duration[%1]").arg(i),QString("%1").arg(info.length()));
}
params.insert("api_key", API_KEY);
params.insert("method", "track.scrobble");
params.insert("sk", m_session);
foreach (QString key, params) //removes empty keys
{
if(params.value(key).isEmpty())
params.remove(key);
}
QUrl url(QString("http://") + m_server + "/");
url.setPort(80);
QUrl body("");
QByteArray data;
foreach (QString key, params.keys())
{
body.addQueryItem(key, params.value(key));
data.append(key.toUtf8() + params.value(key).toUtf8());
}
data.append(SECRET);
body.addQueryItem("api_sig", QCryptographicHash::hash(data, QCryptographicHash::Md5).toHex());
QByteArray bodyData = body.toEncoded().remove(0,1);
bodyData.replace("+", QUrl::toPercentEncoding("+"));
QNetworkRequest request(url);
request.setRawHeader("User-Agent", m_ua);
request.setRawHeader("Host", url.host().toAscii());
request.setRawHeader("Accept", "*/*");
request.setHeader(QNetworkRequest::ContentLengthHeader, bodyData.size());
m_submitReply = m_http->post(request, bodyData);
}
void Scrobbler2::sendNotification(const SongInfo &info)
{
if(m_session.isEmpty())
return;
qDebug("Scrobbler2[%s] sending notification", qPrintable(m_name));
QMap <QString, QString> params;
params.insert("track", info.metaData(Qmmp::TITLE));
params.insert("artist", info.metaData(Qmmp::ARTIST));
if(!info.metaData(Qmmp::ALBUM).isEmpty())
params.insert("album", info.metaData(Qmmp::ALBUM));
if(!info.metaData(Qmmp::TRACK).isEmpty())
params.insert("trackNumber", info.metaData(Qmmp::TRACK));
params.insert("duration", QString("%1").arg(info.length()));
params.insert("api_key", API_KEY);
params.insert("method", "track.updateNowPlaying");
params.insert("sk", m_session);
foreach (QString key, params) //removes empty keys
{
if(params.value(key).isEmpty())
params.remove(key);
}
QUrl url(QString("http://") + m_server + "/");
url.setPort(80);
QUrl body("");
QByteArray data;
foreach (QString key, params.keys())
{
body.addQueryItem(key, params.value(key));
data.append(key.toUtf8() + params.value(key).toUtf8());
}
data.append(SECRET);
body.addQueryItem("api_sig", QCryptographicHash::hash(data, QCryptographicHash::Md5).toHex());
QByteArray bodyData = body.toEncoded().remove(0,1);
bodyData.replace("+", QUrl::toPercentEncoding("+"));
QNetworkRequest request(url);
request.setRawHeader("User-Agent", m_ua);
request.setRawHeader("Host", url.host().toAscii());
request.setRawHeader("Accept", "*/*");
request.setHeader(QNetworkRequest::ContentLengthHeader, bodyData.size());
m_notificationReply = m_http->post(request, bodyData);
}
void Scrobbler2::syncCache()
{
QFile file(QDir::homePath() +"/.qmmp/scrobbler_" + m_name + ".cache");
if (m_songCache.isEmpty())
{
file.remove();
return;
}
file.open(QIODevice::WriteOnly);
foreach(SongInfo m, m_songCache)
{
file.write(QString("title=%1").arg(m.metaData(Qmmp::TITLE)).toUtf8() +"\n");
file.write(QString("artist=%1").arg(m.metaData(Qmmp::ARTIST)).toUtf8() +"\n");
file.write(QString("album=%1").arg(m.metaData(Qmmp::ALBUM)).toUtf8() +"\n");
file.write(QString("comment=%1").arg(m.metaData(Qmmp::COMMENT)).toUtf8() +"\n");
file.write(QString("genre=%1").arg(m.metaData(Qmmp::GENRE)).toUtf8() +"\n");
file.write(QString("year=%1").arg(m.metaData(Qmmp::YEAR)).toUtf8() +"\n");
file.write(QString("track=%1").arg(m.metaData(Qmmp::TRACK)).toUtf8() +"\n");
file.write(QString("length=%1").arg(m.length()).toUtf8() +"\n");
file.write(QString("time=%1").arg(m.timeStamp()).toUtf8() +"\n");
}
file.close();
}
