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ohplaylist.cxx    638 lines (578 with data), 20.9 kB

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/* Copyright (C) 2014 J.F.Dockes
* 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 <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <pwd.h>
#include <string>
#include <iostream>
#include <sstream>
#include <vector>
#include <functional>
#include <set>
using namespace std;
using namespace std::placeholders;
#include "libupnpp/upnpplib.hxx"
#include "libupnpp/soaphelp.hxx"
#include "libupnpp/log.hxx"
#include "libupnpp/base64.hxx"
#include "libupnpp/device/device.hxx"
#include "upmpd.hxx"
#include "ohplaylist.hxx"
#include "ohmetacache.hxx"
#include "mpdcli.hxx"
#include "upmpdutils.hxx"
static const string sTpProduct("urn:av-openhome-org:service:Playlist:1");
static const string sIdProduct("urn:av-openhome-org:serviceId:Playlist");
OHPlaylist::OHPlaylist(UpMpd *dev, UpMpdRenderCtl *ctl)
: UpnpService(sTpProduct, sIdProduct, dev), m_dev(dev), m_ctl(ctl),
m_cachedirty(false), m_mpdqvers(-1)
{
dev->addActionMapping(this, "Play",
bind(&OHPlaylist::play, this, _1, _2));
dev->addActionMapping(this, "Pause",
bind(&OHPlaylist::pause, this, _1, _2));
dev->addActionMapping(this, "Stop",
bind(&OHPlaylist::stop, this, _1, _2));
dev->addActionMapping(this, "Next",
bind(&OHPlaylist::next, this, _1, _2));
dev->addActionMapping(this, "Previous",
bind(&OHPlaylist::previous, this, _1, _2));
dev->addActionMapping(this, "SetRepeat",
bind(&OHPlaylist::setRepeat, this, _1, _2));
dev->addActionMapping(this, "Repeat",
bind(&OHPlaylist::repeat, this, _1, _2));
dev->addActionMapping(this, "SetShuffle",
bind(&OHPlaylist::setShuffle, this, _1, _2));
dev->addActionMapping(this, "Shuffle",
bind(&OHPlaylist::shuffle, this, _1, _2));
dev->addActionMapping(this, "SeekSecondAbsolute",
bind(&OHPlaylist::seekSecondAbsolute, this, _1, _2));
dev->addActionMapping(this, "SeekSecondRelative",
bind(&OHPlaylist::seekSecondRelative, this, _1, _2));
dev->addActionMapping(this, "SeekId",
bind(&OHPlaylist::seekId, this, _1, _2));
dev->addActionMapping(this, "SeekIndex",
bind(&OHPlaylist::seekIndex, this, _1, _2));
dev->addActionMapping(this, "TransportState",
bind(&OHPlaylist::transportState, this, _1, _2));
dev->addActionMapping(this, "Id",
bind(&OHPlaylist::id, this, _1, _2));
dev->addActionMapping(this, "Read",
bind(&OHPlaylist::ohread, this, _1, _2));
dev->addActionMapping(this, "ReadList",
bind(&OHPlaylist::readList, this, _1, _2));
dev->addActionMapping(this, "Insert",
bind(&OHPlaylist::insert, this, _1, _2));
dev->addActionMapping(this, "DeleteId",
bind(&OHPlaylist::deleteId, this, _1, _2));
dev->addActionMapping(this, "DeleteAll",
bind(&OHPlaylist::deleteAll, this, _1, _2));
dev->addActionMapping(this, "TracksMax",
bind(&OHPlaylist::tracksMax, this, _1, _2));
dev->addActionMapping(this, "IdArray",
bind(&OHPlaylist::idArray, this, _1, _2));
dev->addActionMapping(this, "IdArrayChanged",
bind(&OHPlaylist::idArrayChanged, this, _1, _2));
dev->addActionMapping(this, "ProtocolInfo",
bind(&OHPlaylist::protocolInfo, this, _1, _2));
dev->m_mpdcli->consume(false);
if ((dev->m_options & UpMpd::upmpdOhMetaPersist)) {
if (!dmcacheRestore(dev->getMetaCacheFn(), m_metacache)) {
LOGERR("ohPlaylist: cache restore failed" << endl);
} else {
LOGDEB("ohPlaylist: cache restore done" << endl);
}
}
}
static const int tracksmax = 16384;
static string mpdstatusToTransportState(MpdStatus::State st)
{
string tstate;
switch(st) {
case MpdStatus::MPDS_PLAY:
tstate = "Playing";
break;
case MpdStatus::MPDS_PAUSE:
tstate = "Paused";
break;
default:
tstate = "Stopped";
}
return tstate;
}
// The data format for id lists is an array of msb 32 bits ints
// encoded in base64...
static string translateIdArray(const vector<UpSong>& in)
{
string out1;
string sdeb;
for (auto us : in) {
unsigned int val = us.mpdid;
if (val) {
out1 += (unsigned char) ((val & 0xff000000) >> 24);
out1 += (unsigned char) ((val & 0x00ff0000) >> 16);
out1 += (unsigned char) ((val & 0x0000ff00) >> 8);
out1 += (unsigned char) ((val & 0x000000ff));
}
sdeb += SoapHelp::i2s(val) + " ";
}
LOGDEB("OHPlaylist: current ids: " << sdeb << endl);
return base64_encode(out1);
}
bool OHPlaylist::makeIdArray(string& out)
{
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
if (mpds.qvers == m_mpdqvers) {
out = m_idArrayCached;
// Mpd queue did not change: no need to look at the metadata cache
//LOGDEB("OHPlaylist::makeIdArray: mpd queue did not change" << endl);
return true;
}
// Retrieve the data for current queue songs from mpd, and make an
// ohPlaylist id array.
vector<UpSong> vdata;
bool ok = m_dev->m_mpdcli->getQueueData(vdata);
if (!ok) {
LOGERR("OHPlaylist::makeIdArray: getQueueData failed."
"metacache size " << m_metacache.size() << endl);
return false;
}
m_idArrayCached = out = translateIdArray(vdata);
m_mpdqvers = mpds.qvers;
// Update metadata cache: entries not in the current list are
// not valid any more. Also there may be entries which were added
// through an MPD client and which don't know about, record the
// metadata for these. We don't update the current array, but
// just build a new cache for data about current entries.
//
// The songids are not preserved through mpd restarts (they
// restart at 0) this means that the ids are not a good cache key,
// we use the uris instead.
unordered_map<string, string> nmeta;
// Walk the playlist data from MPD
for (auto& usong : vdata) {
auto inold = m_metacache.find(usong.uri);
if (inold != m_metacache.end()) {
// Entries already in the metadata array just get
// transferred to the new array
nmeta[usong.uri].swap(inold->second);
m_metacache.erase(inold);
} else {
// Entries not in the arrays are translated from the
// MPD data to our format. They were probably added by
// another MPD client.
if (nmeta.find(usong.uri) == nmeta.end()) {
nmeta[usong.uri] = didlmake(usong);
m_cachedirty = true;
LOGDEB("OHPlaylist::makeIdArray: using mpd data for " <<
usong.mpdid << " uri " << usong.uri << endl);
}
}
}
for (unordered_map<string, string>::const_iterator it = m_metacache.begin();
it != m_metacache.end(); it++) {
LOGDEB("OHPlaylist::makeIdArray: dropping uri " << it->first << endl);
}
// If we added entries or there are some stale entries, the new
// map differs, save it to cache
if ((m_dev->m_options & UpMpd::upmpdOhMetaPersist) &&
(!m_metacache.empty() || m_cachedirty)) {
LOGDEB("OHPlaylist::makeIdArray: saving metacache" << endl);
dmcacheSave(m_dev->getMetaCacheFn(), nmeta);
m_cachedirty = false;
}
m_metacache = nmeta;
return true;
}
bool OHPlaylist::makestate(unordered_map<string, string> &st)
{
st.clear();
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
st["TransportState"] = mpdstatusToTransportState(mpds.state);
st["Repeat"] = SoapHelp::i2s(mpds.rept);
st["Shuffle"] = SoapHelp::i2s(mpds.random);
st["Id"] = SoapHelp::i2s(mpds.songid);
st["TracksMax"] = SoapHelp::i2s(tracksmax);
st["ProtocolInfo"] = upmpdProtocolInfo;
makeIdArray(st["IdArray"]);
return true;
}
bool OHPlaylist::getEventData(bool all, std::vector<std::string>& names,
std::vector<std::string>& values)
{
//LOGDEB("OHPlaylist::getEventData" << endl);
unordered_map<string, string> state;
makestate(state);
unordered_map<string, string> changed;
if (all) {
changed = state;
} else {
changed = diffmaps(m_state, state);
}
m_state = state;
for (auto& entry : changed) {
names.push_back(entry.first);
values.push_back(entry.second);
}
return true;
}
void OHPlaylist::maybeWakeUp(bool ok)
{
if (ok && m_dev)
m_dev->loopWakeup();
}
int OHPlaylist::play(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::play" << endl);
bool ok = m_dev->m_mpdcli->play();
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::pause(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::pause" << endl);
bool ok = m_dev->m_mpdcli->pause(true);
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::stop(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::stop" << endl);
bool ok = m_dev->m_mpdcli->stop();
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::next(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::next" << endl);
bool ok = m_dev->m_mpdcli->next();
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::previous(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::previous" << endl);
bool ok = m_dev->m_mpdcli->previous();
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::setRepeat(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::setRepeat" << endl);
bool onoff;
bool ok = sc.getBool("Value", &onoff);
if (ok) {
ok = m_dev->m_mpdcli->repeat(onoff);
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::repeat(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::repeat" << endl);
const MpdStatus &mpds = m_dev->getMpdStatus();
data.addarg("Value", mpds.rept? "1" : "0");
return UPNP_E_SUCCESS;
}
int OHPlaylist::setShuffle(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::setShuffle" << endl);
bool onoff;
bool ok = sc.getBool("Value", &onoff);
if (ok) {
// Note that mpd shuffle shuffles the playlist, which is different
// from playing at random
ok = m_dev->m_mpdcli->random(onoff);
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::shuffle(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::shuffle" << endl);
const MpdStatus &mpds = m_dev->getMpdStatus();
data.addarg("Value", mpds.random ? "1" : "0");
return UPNP_E_SUCCESS;
}
int OHPlaylist::seekSecondAbsolute(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::seekSecondAbsolute" << endl);
int seconds;
bool ok = sc.getInt("Value", &seconds);
if (ok) {
ok = m_dev->m_mpdcli->seek(seconds);
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::seekSecondRelative(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::seekSecondRelative" << endl);
int seconds;
bool ok = sc.getInt("Value", &seconds);
if (ok) {
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
bool is_song = (mpds.state == MpdStatus::MPDS_PLAY) ||
(mpds.state == MpdStatus::MPDS_PAUSE);
if (is_song) {
seconds += mpds.songelapsedms / 1000;
ok = m_dev->m_mpdcli->seek(seconds);
} else {
ok = false;
}
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::transportState(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::transportState" << endl);
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
string tstate;
switch(mpds.state) {
case MpdStatus::MPDS_PLAY:
tstate = "Playing";
break;
case MpdStatus::MPDS_PAUSE:
tstate = "Paused";
break;
default:
tstate = "Stopped";
}
data.addarg("TransportState", tstate);
return UPNP_E_SUCCESS;
}
// Skip to track specified by Id
int OHPlaylist::seekId(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::seekId" << endl);
int id;
bool ok = sc.getInt("Value", &id);
if (ok) {
ok = m_dev->m_mpdcli->playId(id);
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
// Skip to track with specified index
int OHPlaylist::seekIndex(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::seekIndex" << endl);
int pos;
bool ok = sc.getInt("Value", &pos);
if (ok) {
ok = m_dev->m_mpdcli->play(pos);
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
// Return current Id
int OHPlaylist::id(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::id" << endl);
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
data.addarg("Value", SoapHelp::i2s(mpds.songid));
return UPNP_E_SUCCESS;
}
bool OHPlaylist::cacheFind(const string& uri, string& meta)
{
auto cached = m_metacache.find(uri);
if (cached != m_metacache.end()) {
meta = cached->second;
return true;
}
return false;
}
// Report the uri and metadata for a given track id.
// Returns a 800 fault code if the given id is not in the playlist.
int OHPlaylist::ohread(const SoapArgs& sc, SoapData& data)
{
int id;
bool ok = sc.getInt("Id", &id);
LOGDEB("OHPlaylist::ohread id " << id << endl);
UpSong song;
if (ok) {
ok = m_dev->m_mpdcli->statSong(song, id, true);
}
if (ok) {
auto cached = m_metacache.find(song.uri);
string metadata;
if (cached != m_metacache.end()) {
metadata = SoapHelp::xmlQuote(cached->second);
} else {
metadata = didlmake(song);
m_metacache[song.uri] = metadata;
m_cachedirty = true;
metadata = SoapHelp::xmlQuote(metadata);
}
data.addarg("Uri", song.uri);
data.addarg("Metadata", metadata);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
// Given a space separated list of track Id's, report their associated
// uri and metadata in the following xml form:
//
// <TrackList>
// <Entry>
// <Id></Id>
// <Uri></Uri>
// <Metadata></Metadata>
// </Entry>
// </TrackList>
//
// Any ids not in the playlist are ignored.
int OHPlaylist::readList(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::readList" << endl);
string sids;
bool ok = sc.getString("IdList", &sids);
vector<string> ids;
string out("<TrackList>");
if (ok) {
stringToTokens(sids, ids);
for (auto& sid : ids) {
int id = atoi(sid.c_str());
if (id == -1) {
// Lumin does this??
LOGDEB("OHPlaylist::readlist: request for id -1" << endl);
continue;
}
UpSong song;
if (!m_dev->m_mpdcli->statSong(song, id, true))
continue;
auto mit = m_metacache.find(song.uri);
string metadata;
if (mit != m_metacache.end()) {
//LOGDEB("readList: metadata for songid " << id << " uri "
// << song.uri << " found in cache " << endl);
metadata = SoapHelp::xmlQuote(mit->second);
} else {
//LOGDEB("readList: metadata for songid " << id << " uri "
// << song.uri << " not found " << endl);
metadata = didlmake(song);
m_metacache[song.uri] = metadata;
m_cachedirty = true;
metadata = SoapHelp::xmlQuote(metadata);
}
out += "<Entry><Id>";
out += sid.c_str();
out += "</Id><Uri>";
out += song.uri;
out += "</Uri><Metadata>";
out += metadata;
out += "</Metadata></Entry>";
}
out += "</TrackList>";
data.addarg("TrackList", out);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
// Adds the given uri and metadata as a new track to the playlist.
// Set the AfterId argument to 0 to insert a track at the start of the
// playlist.
// Reports a 800 fault code if AfterId is not 0 and doesn���t appear in
// the playlist.
// Reports a 801 fault code if the playlist is full (i.e. already
// contains TracksMax tracks).
int OHPlaylist::insert(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::insert" << endl);
int afterid;
string uri, metadata;
bool ok = sc.getInt("AfterId", &afterid);
ok = ok && sc.getString("Uri", &uri);
if (ok)
ok = ok && sc.getString("Metadata", &metadata);
LOGDEB("OHPlaylist::insert: afterid " << afterid << " Uri " <<
uri << " Metadata " << metadata << endl);
if (ok) {
int id = m_dev->m_mpdcli->insertAfterId(uri, afterid);
if ((ok = (id != -1))) {
m_metacache[uri] = metadata;
m_cachedirty = true;
m_mpdqvers = -1;
data.addarg("NewId", SoapHelp::i2s(id));
}
LOGDEB("OHPlaylist::insert: new id: " << id << endl);
}
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::deleteId(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::deleteId" << endl);
int id;
bool ok = sc.getInt("Value", &id);
if (ok) {
ok = m_dev->m_mpdcli->deleteId(id);
m_mpdqvers = -1;
maybeWakeUp(ok);
}
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::deleteAll(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::deleteAll" << endl);
bool ok = m_dev->m_mpdcli->clearQueue();
m_mpdqvers = -1;
maybeWakeUp(ok);
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::tracksMax(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::tracksMax" << endl);
data.addarg("Value", SoapHelp::i2s(tracksmax));
return UPNP_E_SUCCESS;
}
// Returns current list of id as array of big endian 32bits integers,
// base-64-encoded.
int OHPlaylist::idArray(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::idArray" << endl);
string idarray;
if (makeIdArray(idarray)) {
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
LOGDEB("OHPlaylist::idArray: qvers " << mpds.qvers << endl);
data.addarg("Token", SoapHelp::i2s(mpds.qvers));
data.addarg("Array", idarray);
return UPNP_E_SUCCESS;
}
return UPNP_E_INTERNAL_ERROR;
}
// Check if id array changed since last call (which returned a gen token)
int OHPlaylist::idArrayChanged(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::idArrayChanged" << endl);
int qvers;
bool ok = sc.getInt("Token", &qvers);
const MpdStatus &mpds = m_dev->getMpdStatusNoUpdate();
LOGDEB("OHPlaylist::idArrayChanged: query qvers " << qvers <<
" mpd qvers " << mpds.qvers << endl);
// Bool indicating if array changed
int val = mpds.qvers == qvers;
data.addarg("Value", SoapHelp::i2s(val));
return ok ? UPNP_E_SUCCESS : UPNP_E_INTERNAL_ERROR;
}
int OHPlaylist::protocolInfo(const SoapArgs& sc, SoapData& data)
{
LOGDEB("OHPlaylist::protocolInfo" << endl);
data.addarg("Value", upmpdProtocolInfo);
return UPNP_E_SUCCESS;
}