/* Copyright (C) 2016 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 "tidal.hxx"
#define LOGGER_LOCAL_LOGINC 3
#include <string>
#include <vector>
#include <string.h>
#include <librtmp/rtmp.h>
#include "cmdtalk.h"
#include "pathut.h"
#include "log.hxx"
#include "json.hpp"
#include "main.hxx"
using namespace std;
using namespace std::placeholders;
using json = nlohmann::json;
using namespace UPnPProvider;
class Tidal::Internal {
public:
Internal(const vector<string>& pth, const string& hp, const string& pp)
: path(pth), httphp(hp), pathprefix(pp) { }
bool maybeStartCmd(const string&);
string get_media_url(const std::string& path);
string get_mimetype(const std::string& path);
int getinfo(const std::string&, VirtualDir::FileInfo*);
void *open(const std::string&);
int read(void *hdl, char* buf, size_t cnt);
off_t seek(void *hdl, off_t offs, int whence);
void close(void *hdl);
CmdTalk cmd;
vector<string> path;
string httphp;
string pathprefix;
// mimetype is a constant for a given session, depend on quality
// choice only. Initialized once
string mimetype;
};
bool Tidal::Internal::maybeStartCmd(const string& who)
{
LOGDEB1("Tidal::maybeStartCmd for: " << who << endl);
if (!cmd.running()) {
string pythonpath = string("PYTHONPATH=") +
path_cat(g_datadir, "cdplugins/pycommon");
string configname = string("UPMPD_CONFIG=") + g_configfilename;
string hostport = string("UPMPD_HTTPHOSTPORT=") + httphp;
string pp = string("UPMPD_PATHPREFIX=") + pathprefix;
if (!cmd.startCmd("tidal.py", {/*args*/},
{pythonpath, configname, hostport, pp},
path)) {
LOGERR("Tidal::maybeStartCmd: " << who << " startCmd failed\n");
return false;
}
}
return true;
}
string Tidal::Internal::get_media_url(const std::string& path)
{
if (!maybeStartCmd("get_media_url")) {
return string();
}
unordered_map<string, string> res;
if (!cmd.callproc("trackuri", {{"path", path}}, res)) {
LOGERR("Tidal::get_media_url: slave failure\n");
return string();
}
auto it = res.find("media_url");
if (it == res.end()) {
LOGERR("Tidal::get_media_url: no media url in result\n");
return string();
}
string& media_url = it->second;
LOGDEB("Tidal: got media url [" << media_url << "]\n");
return media_url;
}
string Tidal::Internal::get_mimetype(const std::string& path)
{
if (!maybeStartCmd("get_mimetype")) {
return string();
}
if (mimetype.empty()) {
unordered_map<string, string> res;
if (!cmd.callproc("mimetype", {{"path", path}}, res)) {
LOGERR("Tidal::get_media_url: slave failure\n");
return string();
}
auto it = res.find("mimetype");
if (it == res.end()) {
LOGERR("Tidal::get_mimetype: no mimetype in result\n");
return string();
}
mimetype = it->second;
LOGDEB("Tidal: got mimetype [" << mimetype << "]\n");
}
return mimetype;
}
int Tidal::Internal::getinfo(const std::string& path, VirtualDir::FileInfo *inf)
{
LOGDEB("Tidal::getinfo: " << path << endl);
inf->file_length = -1;
inf->last_modified = 0;
inf->mime = get_mimetype(path);
return 0;
}
void *Tidal::Internal::open(const string& path)
{
LOGDEB("Tidal::open: " << path << endl);
string media_url = get_media_url(path);
if (media_url.empty()) {
return nullptr;
}
RTMP *rtmp = RTMP_Alloc();
RTMP_Init(rtmp);
// Writable copy of url
if (!RTMP_SetupURL(rtmp, strdup(media_url.c_str()))) {
LOGERR("Tidal::open: RTMP_SetupURL failed for [" <<
media_url << "]\n");
RTMP_Free(rtmp);
return nullptr;
}
if (!RTMP_Connect(rtmp, NULL)) {
LOGERR("Tidal::open: RTMP_Connect failed for [" <<
media_url << "]\n");
RTMP_Free(rtmp);
return nullptr;
}
if (!RTMP_ConnectStream(rtmp, 0)) {
LOGERR("Tidal::open: RTMP_ConnectStream failed for [" <<
media_url << "]\n");
RTMP_Free(rtmp);
return nullptr;
}
return rtmp;
}
int Tidal::Internal::read(void *hdl, char* buf, size_t cnt)
{
LOGDEB("Tidal::read: " << cnt << endl);
if (!hdl)
return -1;
RTMP *rtmp = (RTMP *)hdl;
size_t totread = 0;
while (totread < cnt) {
int didread = RTMP_Read(rtmp, buf+totread, cnt-totread);
LOGDEB("Tidal::read: RTMP_Read returned: " << didread << endl);
if (didread <= 0)
break;
totread += didread;
}
LOGDEB("Tidal::read: total read: " << totread << endl);
return totread > 0 ? totread : -1;
}
off_t Tidal::Internal::seek(void *hdl, off_t offs, int whence)
{
LOGDEB("Tidal::seek\n");
return -1;
}
void Tidal::Internal::close(void *hdl)
{
LOGDEB("Tidal::close\n");
if (hdl) {
RTMP *rtmp = (RTMP *)hdl;
RTMP_Close(rtmp);
RTMP_Free(rtmp);
}
}
Tidal::Tidal(const vector<string>& plgpath, const string& httphp,
const string& pp)
: m(new Internal(plgpath, httphp, pp))
{
}
Tidal::~Tidal()
{
delete m;
}
int Tidal::browse(const std::string& objid, int stidx, int cnt,
std::vector<UpSong>& entries,
const std::vector<std::string>& sortcrits,
BrowseFlag flg)
{
LOGDEB("Tidal::browse\n");
if (!m->maybeStartCmd("browse")) {
return -1;
}
unordered_map<string, string> res;
if (!m->cmd.callproc("browse", {{"objid", objid}}, res)) {
LOGERR("Tidal::browse: slave failure\n");
return -1;
}
auto it = res.find("entries");
if (it == res.end()) {
LOGERR("Tidal::browse: no entries returned\n");
return -1;
}
auto decoded = json::parse(it->second);
LOGDEB("Tidal::browse: got " << decoded.size() << " entries\n");
LOGDEB1("Tidal::browse: undecoded json: " << decoded.dump() << endl);
for (const auto& it : decoded) {
UpSong song;
auto it1 = it.find("tp");
if (it1 == it.end()) {
LOGERR("Tidal::browse: no type in entry\n");
continue;
}
string stp = it1.value();
#define JSONTOUPS(fld, nm) \
it1 = it.find(#nm); \
if (it1 != it.end()) { \
/*LOGDEB("song." #fld " = " << it1.value() << endl);*/ \
song.fld = it1.value(); \
}
if (!stp.compare("ct")) {
song.iscontainer = true;
} else if (!stp.compare("it")) {
song.iscontainer = false;
JSONTOUPS(uri, uri);
JSONTOUPS(artist, dc:creator);
JSONTOUPS(artist, upnp:artist);
JSONTOUPS(genre, upnp:genre);
JSONTOUPS(tracknum, upnp:originalTrackNumber);
JSONTOUPS(artUri, upnp:albumArtURI);
JSONTOUPS(duration_secs, duration);
} else {
LOGERR("Tidal::browse: bad type in entry: " << it1.value() << endl);
continue;
}
JSONTOUPS(id, id);
JSONTOUPS(parentid, pid);
JSONTOUPS(title, tt);
entries.push_back(song);
}
return decoded.size();
}
VirtualDir::FileOps Tidal::getFileOps()
{
VirtualDir::FileOps ops;
ops.getinfo = bind(&Tidal::Internal::getinfo, m, _1, _2);
ops.open = bind(&Tidal::Internal::open, m, _1);
ops.read = bind(&Tidal::Internal::read, m, _1, _2, _3);
ops.seek = bind(&Tidal::Internal::seek, m, _1, _2, _3);
ops.close = bind(&Tidal::Internal::close, m, _1);
return ops;
}