503 lines
17 KiB
C++
503 lines
17 KiB
C++
/*
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* Cantata
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*
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* Copyright (c) 2011-2022 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 "gui/settings.h"
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#if defined CDDB_FOUND || defined MUSICBRAINZ5_FOUND
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#include "devices/cdparanoia.h"
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#include "devices/extractjob.h"
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#endif
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#include <QTcpSocket>
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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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#include <QUrlQuery>
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#include <QFileInfo>
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#include <QDebug>
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#define DBUG if (HttpServer::debugEnabled()) qWarning() << "HttpSocket" << __FUNCTION__
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static const quint64 constMaxBuffer = 32768;
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static QString detectMimeType(const QString &file)
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{
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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 (suffix == QLatin1String("ogg")) {
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return QLatin1String("audio/ogg");
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}
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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 from, 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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if (0==from) {
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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\nAccept-Ranges: bytes"
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<< "\r\nContent-Range: bytes " << QString::number(from) << "-" << QString::number(size-1) << "/" << QString::number(size)
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<< "\r\nContent-Length: " << QString::number(size-from)
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<< "\r\nContent-Type: " << mimeType << "\r\n\r\n";
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}
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DBUG << mimeType << QString::number(size) << "Can seek";
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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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DBUG << mimeType << QString::number(size);
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}
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}
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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 void getRange(const QStringList ¶ms, qint32 &from, qint32 &to)
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{
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for (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("-", CANTATA_SKIP_EMPTY);
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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(nullptr)
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, cfgInterface(iface)
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, terminated(false)
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{
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if (!openPort(port)) {
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openPort(0);
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}
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DBUG << isListening() << serverPort();
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connect(MPDConnection::self(), SIGNAL(socketAddress(QString)), this, SLOT(mpdAddress(QString)));
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connect(MPDConnection::self(), SIGNAL(cantataStreams(QList<Song>,bool)), this, SLOT(cantataStreams(QList<Song>,bool)));
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connect(MPDConnection::self(), SIGNAL(cantataStreams(QStringList)), this, SLOT(cantataStreams(QStringList)));
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connect(MPDConnection::self(), SIGNAL(removedIds(QSet<qint32>)), this, SLOT(removedIds(QSet<qint32>)));
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connect(this, SIGNAL(newConnection()), SLOT(handleNewConnection()));
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}
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bool HttpSocket::openPort(quint16 p)
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{
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setProxy(QNetworkProxy::NoProxy);
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if (listen(QHostAddress::Any, p)) {
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return true;
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}
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if (listen(QHostAddress::LocalHost, p)) {
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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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if (terminated) {
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return;
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}
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DBUG;
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terminated=true;
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close();
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deleteLater();
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}
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void HttpSocket::handleNewConnection()
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{
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DBUG;
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while (hasPendingConnections()) {
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QTcpSocket *socket = nextPendingConnection();
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// prevent clients from sending too much data
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socket->setReadBufferSize(constMaxBuffer);
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static const QLatin1String constIpV6Prefix("::ffff:");
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QString peer=socket->peerAddress().toString();
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QString ifaceAddress=serverAddress().toString();
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const bool hostOk=peer==ifaceAddress || peer==mpdAddr || peer==(constIpV6Prefix+mpdAddr) ||
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peer==QLatin1String("127.0.0.1") || peer==(constIpV6Prefix+QLatin1String("127.0.0.1"));
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DBUG << "peer:" << peer << "mpd:" << mpdAddr << "iface:" << ifaceAddress << "ok:" << hostOk;
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if (!hostOk) {
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sendErrorResponse(socket, 400);
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socket->close();
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DBUG << "Not from valid host";
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return;
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}
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connect(socket, SIGNAL(readyRead()), this, SLOT(readClient()));
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connect(socket, SIGNAL(disconnected()), this, SLOT(discardClient()));
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}
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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 = static_cast<QTcpSocket *>(sender());
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if (!socket) {
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return;
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}
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if (static_cast<size_t>(socket->bytesAvailable()) >= constMaxBuffer) {
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// Request too large, reject
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sendErrorResponse(socket, 400);
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socket->close();
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DBUG << "Request too large";
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return;
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}
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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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QUrl url(QUrl::fromEncoded(tokens[1]));
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QUrlQuery q(url);
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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 << "readBytesFrom" << readBytesFrom << "readBytesTo" << readBytesTo;
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if (q.hasQueryItem("cantata")) {
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Song song=HttpServer::self()->decodeUrl(url);
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if (!isCantataStream(song.file)) {
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sendErrorResponse(socket, 400);
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socket->close();
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DBUG << "Not cantata stream file";
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return;
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}
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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("/", CANTATA_SKIP_EMPTY);
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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, Settings::self()->paranoiaOffset());
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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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bool writeHeader=0==readBytesFrom; // Only write header if we are not seeking...
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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>=ExtractJob::constWavHeaderSize) {
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// readBytesFrom-=ExtractJob::constWavHeaderSize;
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// }
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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, readBytesFrom, totalSize+ExtractJob::constWavHeaderSize, false);
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if (writeHeader) {
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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 (bytesToDiscard>0) {
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// int toSkip=qMin(toWrite, bytesToDiscard);
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// writePos=toSkip;
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// toWrite-=toSkip;
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// bytesToDiscard-=toSkip;
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// }
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if (toWrite>0 && !write(socket, &buffer[writePos], toWrite, stop)) {
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break;
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}
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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, readBytesFrom, totalBytes, true);
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ok=true;
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qint32 readPos = 0;
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qint32 bytesRead = 0;
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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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static const int constChunkSize=32768;
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char buffer[constChunkSize];
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bool stop=false;
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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 (!write(socket, buffer, bytesRead, stop) || f.atEnd()) {
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break;
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}
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} while (readPos<totalBytes && !stop && !terminated);
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}
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} else {
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DBUG << "Failed to open" << song.file;
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}
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}
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}
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if (!ok) {
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sendErrorResponse(socket, 404);
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}
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socket->close();
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if (QTcpSocket::UnconnectedState==socket->state()) {
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socket->deleteLater();
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}
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} else {
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// Bad Request
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sendErrorResponse(socket, 400);
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socket->close();
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DBUG << "Bad Request";
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return;
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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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static_cast<QTcpSocket *>(sender())->deleteLater();
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}
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void HttpSocket::mpdAddress(const QString &a)
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{
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mpdAddr=a;
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}
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bool HttpSocket::isCantataStream(const QString &file) const
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{
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DBUG << file << newlyAddedFiles.contains(file) << streamIds.values().contains(file);
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return newlyAddedFiles.contains(file) || streamIds.values().contains(file);
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}
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void HttpSocket::sendErrorResponse(QTcpSocket *socket, int code)
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{
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QTextStream os(socket);
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os.setAutoDetectUnicode(true);
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os << "HTTP/1.0 " << code << " 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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}
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void HttpSocket::cantataStreams(const QStringList &files)
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{
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DBUG << files;
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for (const QString &f: files) {
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Song s=HttpServer::self()->decodeUrl(f);
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if (s.isCantataStream() || s.isCdda()) {
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DBUG << s.file;
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newlyAddedFiles+=s.file;
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}
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}
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}
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void HttpSocket::cantataStreams(const QList<Song> &songs, bool isUpdate)
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{
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DBUG << isUpdate << songs.count();
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if (!isUpdate) {
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streamIds.clear();
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}
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for (const Song &s: songs) {
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DBUG << s.file;
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if (s.isCantataStream()) {
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streamIds.insert(s.id, HttpServer::self()->decodeUrl(s.file).file);
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} else {
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streamIds.insert(s.id, s.file);
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}
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newlyAddedFiles.remove(s.file);
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}
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DBUG << streamIds;
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}
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void HttpSocket::removedIds(const QSet<qint32> &ids)
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{
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for (qint32 id: ids) {
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streamIds.remove(id);
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}
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}
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bool HttpSocket::write(QTcpSocket *socket, char *buffer, qint32 bytesRead, bool &stop)
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{
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if (bytesRead<0 || terminated) {
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return false;
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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 (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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return false;
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}
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return true;
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}
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#include "moc_httpsocket.cpp"
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