472 lines
16 KiB
C++
472 lines
16 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2013 Craig Drummond <craig.p.drummond@gmail.com>
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*
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* ----
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 GNU
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* 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 this program; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "httpsocket.h"
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#include "httpserver.h"
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#include "settings.h"
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#if defined CDDB_FOUND || defined MUSICBRAINZ5_FOUND
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#include "cdparanoia.h"
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#include "extractjob.h"
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#endif
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#include <QTcpSocket>
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#include <QNetworkInterface>
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#include <QStringList>
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#include <QTextStream>
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#include <QFile>
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#include <QUrl>
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#include <QNetworkProxy>
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#if QT_VERSION >= 0x050000
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#include <QUrlQuery>
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#endif
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#ifdef ENABLE_KDE_SUPPORT
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#include <KDE/KMimeType>
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#endif
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#include <QFileInfo>
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#if defined TAGLIB_FOUND && !defined ENABLE_EXTERNAL_TAGS
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#include "tags.h"
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#endif
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#include <QDebug>
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#define DBUG if (HttpServer::debugEnabled()) qWarning() << "HttpSocket" << __FUNCTION__
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static QString detectMimeType(const QString &file)
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{
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#ifdef ENABLE_KDE_SUPPORT
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QString km=KMimeType::findByPath(file)->name();
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if (!km.isEmpty() && (km.startsWith("audio/") || km.startsWith("application/"))) {
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return QLatin1String("audio/x-ape")==km ? QLatin1String("audio/x-monkeys-audio") : km;
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}
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#endif
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QString suffix = QFileInfo(file).suffix().toLower();
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if (suffix == QLatin1String("mp3")) {
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return QLatin1String("audio/mpeg");
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}
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#if defined TAGLIB_FOUND && !defined ENABLE_EXTERNAL_TAGS
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if (suffix == QLatin1String("ogg")) {
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return Tags::oggMimeType(file);
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}
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#else
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if (suffix == QLatin1String("ogg")) {
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return QLatin1String("audio/ogg");
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}
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#endif
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if (suffix == QLatin1String("flac")) {
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return QLatin1String("audio/x-flac");
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}
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if (suffix == QLatin1String("wma")) {
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return QLatin1String("audio/x-ms-wma");
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}
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if (suffix == QLatin1String("m4a") || suffix == QLatin1String("m4b") || suffix == QLatin1String("m4p") || suffix == QLatin1String("mp4")) {
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return QLatin1String("audio/mp4");
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}
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if (suffix == QLatin1String("wav")) {
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return QLatin1String("audio/x-wav");
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}
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if (suffix == QLatin1String("wv") || suffix == QLatin1String("wvp")) {
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return QLatin1String("audio/x-wavpack");
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}
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if (suffix == QLatin1String("ape")) {
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return QLatin1String("audio/x-monkeys-audio"); // "audio/x-ape";
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}
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if (suffix == QLatin1String("spx")) {
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return QLatin1String("audio/x-speex");
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}
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if (suffix == QLatin1String("tta")) {
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return QLatin1String("audio/x-tta");
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}
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if (suffix == QLatin1String("aiff") || suffix == QLatin1String("aif") || suffix == QLatin1String("aifc")) {
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return QLatin1String("audio/x-aiff");
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}
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if (suffix == QLatin1String("mpc") || suffix == QLatin1String("mpp") || suffix == QLatin1String("mp+")) {
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return QLatin1String("audio/x-musepack");
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}
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if (suffix == QLatin1String("dff")) {
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return QLatin1String("application/x-dff");
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}
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if (suffix == QLatin1String("dsf")) {
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return QLatin1String("application/x-dsf");
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}
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if (suffix == QLatin1String("opus")) {
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return QLatin1String("audio/opus");
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}
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return QString();
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}
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static void writeMimeType(const QString &mimeType, QTcpSocket *socket, qint32 size, bool allowSeek)
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{
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if (!mimeType.isEmpty()) {
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QTextStream os(socket);
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os.setAutoDetectUnicode(true);
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if (allowSeek) {
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os << "HTTP/1.0 200 OK"
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<< "\r\nAccept-Ranges: bytes"
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<< "\r\nContent-Length: " << QString::number(size)
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<< "\r\nContent-Type: " << mimeType << "\r\n\r\n";
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} else {
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os << "HTTP/1.0 200 OK"
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<< "\r\nContent-Length: " << QString::number(size)
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<< "\r\nContent-Type: " << mimeType << "\r\n\r\n";
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}
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}
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}
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static QHostAddress getAddress(const QNetworkInterface &iface)
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{
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QList<QNetworkAddressEntry> addresses=iface.addressEntries();
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foreach (const QNetworkAddressEntry &addr, addresses) {
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QHostAddress hostAddress=addr.ip();
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if (QAbstractSocket::IPv4Protocol==hostAddress.protocol()) {
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return hostAddress;
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}
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}
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return QHostAddress();
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}
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static int getSep(const QByteArray &a, int pos)
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{
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for (int i=pos+1; i<a.length(); ++i) {
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if ('\n'==a[i] || '\r'==a[i] || ' '==a[i]) {
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return i;
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}
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}
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return -1;
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}
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static QList<QByteArray> split(const QByteArray &a)
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{
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QList<QByteArray> rv;
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int lastPos=-1;
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for (;;) {
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int pos=getSep(a, lastPos);
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if (pos==(lastPos+1)) {
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lastPos++;
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} else if (pos>-1) {
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lastPos++;
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rv.append(a.mid(lastPos, pos-lastPos));
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lastPos=pos;
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} else {
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lastPos++;
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rv.append(a.mid(lastPos));
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break;
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}
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}
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return rv;
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}
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static bool isFromMpd(const QStringList ¶ms)
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{
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foreach (const QString &str, params) {
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if (str.startsWith("User-Agent:") && str.contains("Music Player Daemon")) {
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return true;
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}
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}
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return false;
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}
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static void getRange(const QStringList ¶ms, qint32 &from, qint32 &to)
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{
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foreach (const QString &str, params) {
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if (str.startsWith("Range:")) {
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int start=str.indexOf("bytes=");
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if (start>0) {
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QStringList range=str.mid(start+6).split("-", QString::SkipEmptyParts);
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if (1==range.length()) {
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from=range.at(0).toLong();
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} else if (2==range.length()) {
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from=range.at(0).toLong();
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to=range.at(1).toLong();
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}
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}
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break;
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}
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}
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}
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HttpSocket::HttpSocket(const QString &iface, quint16 port)
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: QTcpServer(0)
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, cfgInterface(iface)
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, terminated(false)
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{
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// Get network address...
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QHostAddress a;
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if (!iface.isEmpty()) {
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// Try rquested interface...
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QNetworkInterface netIface=QNetworkInterface::interfaceFromName(iface);
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if (netIface.isValid()) {
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a=getAddress(netIface);
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}
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}
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if (a.isNull()) {
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// Hmm... try first active interface...
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QNetworkInterface loIface;
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QList<QNetworkInterface> ifaces=QNetworkInterface::allInterfaces();
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foreach (const QNetworkInterface &iface, ifaces) {
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if (iface.flags()&QNetworkInterface::IsUp) {
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if (QLatin1String("lo")==iface.name()) {
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loIface=iface;
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} else {
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a=getAddress(iface);
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if (!a.isNull()) {
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break;
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}
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}
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}
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}
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if (a.isNull() && !loIface.isValid()) {
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// Get address of 'loopback' interface...
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a=getAddress(loIface);
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}
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}
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if (!openPort(a, port)) {
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openPort(a, 0);
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}
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if (isListening() && ifaceAddress.isEmpty()) {
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ifaceAddress=QLatin1String("127.0.0.1");
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}
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}
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bool HttpSocket::openPort(const QHostAddress &a, quint16 p)
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{
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if (!a.isNull() && listen(a, p)) {
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ifaceAddress=a.toString();
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return true;
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}
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// Listen probably failed due to proxy, so unset and try again!
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setProxy(QNetworkProxy::NoProxy);
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if (!a.isNull() && listen(a, p)) {
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ifaceAddress=a.toString();
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return true;
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}
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if (listen(QHostAddress::Any, p)) {
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ifaceAddress=serverAddress().toString();
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return true;
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}
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if (listen(QHostAddress::LocalHost, p)) {
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ifaceAddress=QLatin1String("127.0.0.1");
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return true;
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}
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return false;
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}
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void HttpSocket::terminate()
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{
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terminated=true;
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deleteLater();
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}
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void HttpSocket::incomingConnection(int socket)
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{
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QTcpSocket *s = new QTcpSocket(this);
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connect(s, SIGNAL(readyRead()), this, SLOT(readClient()));
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connect(s, SIGNAL(disconnected()), this, SLOT(discardClient()));
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s->setSocketDescriptor(socket);
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}
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void HttpSocket::readClient()
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{
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if (terminated) {
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return;
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}
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QTcpSocket *socket = (QTcpSocket*)sender();
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if (socket->canReadLine()) {
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QList<QByteArray> tokens = split(socket->readLine()); // QRegExp("[ \r\n][ \r\n]*"));
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if (tokens.length()>=2 && "GET"==tokens[0]) {
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QStringList params = QString(socket->readAll()).split(QRegExp("[\r\n][\r\n]*"));
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DBUG << "params" << params << "tokens" << tokens;
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if (!isFromMpd(params)) {
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return;
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}
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#if QT_VERSION < 0x050000
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QUrl url(QUrl::fromEncoded(tokens[1]));
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QUrl &q=url;
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#else
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QUrl url(QUrl::fromEncoded(tokens[1]));
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QUrlQuery q(url);
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#endif
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bool ok=false;
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qint32 readBytesFrom=0;
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qint32 readBytesTo=0;
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getRange(params, readBytesFrom, readBytesTo);
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DBUG << url.toString() << q.hasQueryItem("cantata");
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if (q.hasQueryItem("cantata")) {
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Song song=HttpServer::self()->decodeUrl(url);
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if (song.isCdda()) {
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#if defined CDDB_FOUND || defined MUSICBRAINZ5_FOUND
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QStringList parts=song.file.split("/", QString::SkipEmptyParts);
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if (parts.length()>=3) {
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QString dev=QLatin1Char('/')+parts.at(1)+QLatin1Char('/')+parts.at(2);
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CdParanoia cdparanoia(dev, false, false, true);
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if (cdparanoia) {
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int firstSector = cdparanoia.firstSectorOfTrack(song.id);
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int lastSector = cdparanoia.lastSectorOfTrack(song.id);
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qint32 totalSize = ((lastSector-firstSector)+1)*CD_FRAMESIZE_RAW;
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int count = 0;
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//int bytesToDiscard = 0; // Number of bytes to discard in first read sector due to range request in HTTP header
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//if (readBytesFrom>0) {
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// int sectorsToSeek=readBytesFrom/CD_FRAMESIZE_RAW;
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// firstSector+=sectorsToSeek;
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// bytesToDiscard=readBytesFrom-(sectorsToSeek*CD_FRAMESIZE_RAW);
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//}
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cdparanoia.seek(firstSector, SEEK_SET);
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ok=true;
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writeMimeType(QLatin1String("audio/x-wav"), socket, totalSize+ExtractJob::constWavHeaderSize, false);
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//if (0==readBytesFrom) { // Only write header if we are no seeking...
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ExtractJob::writeWavHeader(*socket, totalSize);
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//}
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bool stop=false;
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while (!terminated && (firstSector+count) <= lastSector && !stop) {
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qint16 *buf = cdparanoia.read();
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if (!buf) {
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break;
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}
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char *buffer=(char *)buf;
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qint32 writePos=0;
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qint32 toWrite=CD_FRAMESIZE_RAW;
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//if (0==count && bytesToDiscard) {
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// writePos=bytesToDiscard;
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// toWrite-=bytesToDiscard;
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// bytesToDiscard=0;
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//}
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do {
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qint32 bytesWritten=socket->write(&buffer[writePos], toWrite - writePos);
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if (terminated || -1==bytesWritten) {
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stop=true;
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break;
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}
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socket->flush();
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writePos+=bytesWritten;
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} while (!terminated && writePos<toWrite);
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count++;
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}
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}
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}
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#endif
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} else if (!song.file.isEmpty()) {
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#ifdef Q_OS_WIN
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if (tokens[1].startsWith("//") && !song.file.startsWith(QLatin1String("//")) && !QFile::exists(song.file)) {
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QString share=QLatin1String("//")+url.host()+song.file;
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if (QFile::exists(share)) {
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song.file=share;
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DBUG << "fixed share-path" << song.file;
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}
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}
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#endif
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QFile f(song.file);
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if (f.open(QIODevice::ReadOnly)) {
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qint32 totalBytes = f.size();
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writeMimeType(detectMimeType(song.file), socket, totalBytes, true);
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ok=true;
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static const int constChunkSize=32768;
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char buffer[constChunkSize];
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qint32 readPos = 0;
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qint32 bytesRead = 0;
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bool stop=false;
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if (0!=readBytesFrom) {
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if (!f.seek(readBytesFrom)) {
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ok=false;
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}
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bytesRead+=readBytesFrom;
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}
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if (0!=readBytesTo && readBytesTo>readBytesFrom && readBytesTo!=totalBytes) {
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totalBytes-=(totalBytes-readBytesTo);
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}
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if (ok) {
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do {
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bytesRead = f.read(buffer, constChunkSize);
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readPos+=bytesRead;
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if (bytesRead<0 || terminated) {
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break;
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}
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qint32 writePos=0;
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do {
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qint32 bytesWritten = socket->write(&buffer[writePos], bytesRead - writePos);
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if (terminated || -1==bytesWritten) {
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stop=true;
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break;
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}
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socket->flush();
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writePos+=bytesWritten;
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} while (writePos<bytesRead);
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if (f.atEnd()) {
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break;
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}
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if (QAbstractSocket::ConnectedState==socket->state()) {
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socket->waitForBytesWritten();
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}
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if (QAbstractSocket::ConnectedState!=socket->state()) {
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break;
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}
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} while ((readPos+bytesRead)<totalBytes && !stop && !terminated);
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}
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}
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}
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}
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if (!ok) {
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QTextStream os(socket);
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os.setAutoDetectUnicode(true);
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os << "HTTP/1.0 404 OK\r\n"
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"Content-Type: text/html; charset=\"utf-8\"\r\n"
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"\r\n"
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"<h1>Nothing to see here</h1>\n";
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}
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socket->close();
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if (QTcpSocket::UnconnectedState==socket->state()) {
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delete socket;
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}
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}
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}
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}
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void HttpSocket::discardClient()
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{
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QTcpSocket *socket = (QTcpSocket*)sender();
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socket->deleteLater();
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}
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