/[svn]/linuxsampler/trunk/src/network/lscpserver.cpp
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Diff of /linuxsampler/trunk/src/network/lscpserver.cpp

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revision 1212 by schoenebeck, Tue May 29 23:59:36 2007 UTC revision 1551 by schoenebeck, Wed Dec 5 22:05:28 2007 UTC
# Line 25  Line 25 
25  #include "lscpresultset.h"  #include "lscpresultset.h"
26  #include "lscpevent.h"  #include "lscpevent.h"
27    
28    #if defined(WIN32)
29    #include <windows.h>
30    #else
31  #include <fcntl.h>  #include <fcntl.h>
32    #endif
33    
34  #if ! HAVE_SQLITE3  #if ! HAVE_SQLITE3
35  #define DOESNT_HAVE_SQLITE3 "No database support. SQLITE3 was not installed when linuxsampler was built."  #define DOESNT_HAVE_SQLITE3 "No database support. SQLITE3 was not installed when linuxsampler was built."
# Line 36  Line 40 
40  #include "../drivers/audio/AudioOutputDeviceFactory.h"  #include "../drivers/audio/AudioOutputDeviceFactory.h"
41  #include "../drivers/midi/MidiInputDeviceFactory.h"  #include "../drivers/midi/MidiInputDeviceFactory.h"
42    
43    
44    /**
45     * Returns a copy of the given string where all special characters are
46     * replaced by LSCP escape sequences ("\xHH"). This function shall be used
47     * to escape LSCP response fields in case the respective response field is
48     * actually defined as using escape sequences in the LSCP specs.
49     *
50     * @e Caution: DO NOT use this function for escaping path based responses,
51     * use the Path class (src/common/Path.h) for this instead!
52     */
53    static String _escapeLscpResponse(String txt) {
54        for (int i = 0; i < txt.length(); i++) {
55            const char c = txt.c_str()[i];
56            if (
57                !(c >= '0' && c <= '9') &&
58                !(c >= 'a' && c <= 'z') &&
59                !(c >= 'A' && c <= 'Z') &&
60                !(c == ' ') && !(c == '!') && !(c == '#') && !(c == '$') &&
61                !(c == '%') && !(c == '&') && !(c == '(') && !(c == ')') &&
62                !(c == '*') && !(c == '+') && !(c == ',') && !(c == '-') &&
63                !(c == '.') && !(c == '/') && !(c == ':') && !(c == ';') &&
64                !(c == '<') && !(c == '=') && !(c == '>') && !(c == '?') &&
65                !(c == '@') && !(c == '[') && !(c == ']') &&
66                !(c == '^') && !(c == '_') && !(c == '`') && !(c == '{') &&
67                !(c == '|') && !(c == '}') && !(c == '~')
68            ) {
69                // convert the "special" character into a "\xHH" LSCP escape sequence
70                char buf[5];
71                snprintf(buf, sizeof(buf), "\\x%02x", static_cast<unsigned char>(c));
72                txt.replace(i, 1, buf);
73                i += 3;
74            }
75        }
76        return txt;
77    }
78    
79  /**  /**
80   * Below are a few static members of the LSCPServer class.   * Below are a few static members of the LSCPServer class.
81   * The big assumption here is that LSCPServer is going to remain a singleton.   * The big assumption here is that LSCPServer is going to remain a singleton.
# Line 52  Line 92 
92  fd_set LSCPServer::fdSet;  fd_set LSCPServer::fdSet;
93  int LSCPServer::currentSocket = -1;  int LSCPServer::currentSocket = -1;
94  std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();  std::vector<yyparse_param_t> LSCPServer::Sessions = std::vector<yyparse_param_t>();
95    std::vector<yyparse_param_t>::iterator itCurrentSession = std::vector<yyparse_param_t>::iterator();
96  std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();  std::map<int,String> LSCPServer::bufferedNotifies = std::map<int,String>();
97  std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();  std::map<int,String> LSCPServer::bufferedCommands = std::map<int,String>();
98  std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();  std::map< LSCPEvent::event_t, std::list<int> > LSCPServer::eventSubscriptions = std::map< LSCPEvent::event_t, std::list<int> >();
# Line 86  LSCPServer::LSCPServer(Sampler* pSampler Line 127  LSCPServer::LSCPServer(Sampler* pSampler
127      LSCPEvent::RegisterEvent(LSCPEvent::event_db_instr_info, "DB_INSTRUMENT_INFO");      LSCPEvent::RegisterEvent(LSCPEvent::event_db_instr_info, "DB_INSTRUMENT_INFO");
128      LSCPEvent::RegisterEvent(LSCPEvent::event_db_instrs_job_info, "DB_INSTRUMENTS_JOB_INFO");      LSCPEvent::RegisterEvent(LSCPEvent::event_db_instrs_job_info, "DB_INSTRUMENTS_JOB_INFO");
129      LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");      LSCPEvent::RegisterEvent(LSCPEvent::event_misc, "MISCELLANEOUS");
130        LSCPEvent::RegisterEvent(LSCPEvent::event_total_stream_count, "TOTAL_STREAM_COUNT");
131      LSCPEvent::RegisterEvent(LSCPEvent::event_total_voice_count, "TOTAL_VOICE_COUNT");      LSCPEvent::RegisterEvent(LSCPEvent::event_total_voice_count, "TOTAL_VOICE_COUNT");
132      LSCPEvent::RegisterEvent(LSCPEvent::event_global_info, "GLOBAL_INFO");      LSCPEvent::RegisterEvent(LSCPEvent::event_global_info, "GLOBAL_INFO");
133      hSocket = -1;      hSocket = -1;
134  }  }
135    
136  LSCPServer::~LSCPServer() {  LSCPServer::~LSCPServer() {
137    #if defined(WIN32)
138        if (hSocket >= 0) closesocket(hSocket);
139    #else
140      if (hSocket >= 0) close(hSocket);      if (hSocket >= 0) close(hSocket);
141    #endif
142  }  }
143    
144  void LSCPServer::EventHandler::ChannelCountChanged(int NewCount) {  void LSCPServer::EventHandler::ChannelCountChanged(int NewCount) {
# Line 143  void LSCPServer::EventHandler::TotalVoic Line 189  void LSCPServer::EventHandler::TotalVoic
189      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_voice_count, NewCount));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_voice_count, NewCount));
190  }  }
191    
192    void LSCPServer::EventHandler::TotalStreamCountChanged(int NewCount) {
193        LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_total_stream_count, NewCount));
194    }
195    
196  #if HAVE_SQLITE3  #if HAVE_SQLITE3
197  void LSCPServer::DbInstrumentsEventHandler::DirectoryCountChanged(String Dir) {  void LSCPServer::DbInstrumentsEventHandler::DirectoryCountChanged(String Dir) {
198      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_count, Dir));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_count, InstrumentsDb::toEscapedPath(Dir)));
199  }  }
200    
201  void LSCPServer::DbInstrumentsEventHandler::DirectoryInfoChanged(String Dir) {  void LSCPServer::DbInstrumentsEventHandler::DirectoryInfoChanged(String Dir) {
202      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_info, Dir));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_info, InstrumentsDb::toEscapedPath(Dir)));
203  }  }
204    
205  void LSCPServer::DbInstrumentsEventHandler::DirectoryNameChanged(String Dir, String NewName) {  void LSCPServer::DbInstrumentsEventHandler::DirectoryNameChanged(String Dir, String NewName) {
206      Dir = "'" + Dir + "'";      Dir = "'" + InstrumentsDb::toEscapedPath(Dir) + "'";
207      NewName = "'" + NewName + "'";      NewName = "'" + InstrumentsDb::toEscapedPath(NewName) + "'";
208      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_info, "NAME", Dir, NewName));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_dir_info, "NAME", Dir, NewName));
209  }  }
210    
211  void LSCPServer::DbInstrumentsEventHandler::InstrumentCountChanged(String Dir) {  void LSCPServer::DbInstrumentsEventHandler::InstrumentCountChanged(String Dir) {
212      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_count, Dir));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_count, InstrumentsDb::toEscapedPath(Dir)));
213  }  }
214    
215  void LSCPServer::DbInstrumentsEventHandler::InstrumentInfoChanged(String Instr) {  void LSCPServer::DbInstrumentsEventHandler::InstrumentInfoChanged(String Instr) {
216      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_info, Instr));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_info, InstrumentsDb::toEscapedPath(Instr)));
217  }  }
218    
219  void LSCPServer::DbInstrumentsEventHandler::InstrumentNameChanged(String Instr, String NewName) {  void LSCPServer::DbInstrumentsEventHandler::InstrumentNameChanged(String Instr, String NewName) {
220      Instr = "'" + Instr + "'";      Instr = "'" + InstrumentsDb::toEscapedPath(Instr) + "'";
221      NewName = "'" + NewName + "'";      NewName = "'" + InstrumentsDb::toEscapedPath(NewName) + "'";
222      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_info, "NAME", Instr, NewName));      LSCPServer::SendLSCPNotify(LSCPEvent(LSCPEvent::event_db_instr_info, "NAME", Instr, NewName));
223  }  }
224    
# Line 193  int LSCPServer::WaitUntilInitialized(lon Line 243  int LSCPServer::WaitUntilInitialized(lon
243  }  }
244    
245  int LSCPServer::Main() {  int LSCPServer::Main() {
246            #if defined(WIN32)
247            WSADATA wsaData;
248            int iResult;
249            iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
250            if (iResult != 0) {
251                    std::cerr << "LSCPServer: WSAStartup failed: " << iResult << "\n";
252                    exit(EXIT_FAILURE);
253            }
254            #endif
255      hSocket = socket(AF_INET, SOCK_STREAM, 0);      hSocket = socket(AF_INET, SOCK_STREAM, 0);
256      if (hSocket < 0) {      if (hSocket < 0) {
257          std::cerr << "LSCPServer: Could not create server socket." << std::endl;          std::cerr << "LSCPServer: Could not create server socket." << std::endl;
# Line 206  int LSCPServer::Main() { Line 265  int LSCPServer::Main() {
265              if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {              if (bind(hSocket, (sockaddr*) &SocketAddress, sizeof(sockaddr_in)) < 0) {
266                  if (trial > LSCP_SERVER_BIND_TIMEOUT) {                  if (trial > LSCP_SERVER_BIND_TIMEOUT) {
267                      std::cerr << "gave up!" << std::endl;                      std::cerr << "gave up!" << std::endl;
268                        #if defined(WIN32)
269                        closesocket(hSocket);
270                        #else
271                      close(hSocket);                      close(hSocket);
272                        #endif
273                      //return -1;                      //return -1;
274                      exit(EXIT_FAILURE);                      exit(EXIT_FAILURE);
275                  }                  }
# Line 218  int LSCPServer::Main() { Line 281  int LSCPServer::Main() {
281    
282      listen(hSocket, 1);      listen(hSocket, 1);
283      Initialized.Set(true);      Initialized.Set(true);
284        
285      // Registering event listeners      // Registering event listeners
286      pSampler->AddChannelCountListener(&eventHandler);      pSampler->AddChannelCountListener(&eventHandler);
287      pSampler->AddAudioDeviceCountListener(&eventHandler);      pSampler->AddAudioDeviceCountListener(&eventHandler);
# Line 226  int LSCPServer::Main() { Line 289  int LSCPServer::Main() {
289      pSampler->AddVoiceCountListener(&eventHandler);      pSampler->AddVoiceCountListener(&eventHandler);
290      pSampler->AddStreamCountListener(&eventHandler);      pSampler->AddStreamCountListener(&eventHandler);
291      pSampler->AddBufferFillListener(&eventHandler);      pSampler->AddBufferFillListener(&eventHandler);
292        pSampler->AddTotalStreamCountListener(&eventHandler);
293      pSampler->AddTotalVoiceCountListener(&eventHandler);      pSampler->AddTotalVoiceCountListener(&eventHandler);
294      pSampler->AddFxSendCountListener(&eventHandler);      pSampler->AddFxSendCountListener(&eventHandler);
295      MidiInstrumentMapper::AddMidiInstrumentCountListener(&eventHandler);      MidiInstrumentMapper::AddMidiInstrumentCountListener(&eventHandler);
# Line 288  int LSCPServer::Main() { Line 352  int LSCPServer::Main() {
352                  continue; //Nothing try again                  continue; //Nothing try again
353          if (retval == -1) {          if (retval == -1) {
354                  std::cerr << "LSCPServer: Socket select error." << std::endl;                  std::cerr << "LSCPServer: Socket select error." << std::endl;
355                    #if defined(WIN32)
356                    closesocket(hSocket);
357                    #else
358                  close(hSocket);                  close(hSocket);
359                    #endif
360                  exit(EXIT_FAILURE);                  exit(EXIT_FAILURE);
361          }          }
362    
# Line 300  int LSCPServer::Main() { Line 368  int LSCPServer::Main() {
368                          exit(EXIT_FAILURE);                          exit(EXIT_FAILURE);
369                  }                  }
370    
371                    #if defined(WIN32)
372                    u_long nonblock_io = 1;
373                    if( ioctlsocket(socket, FIONBIO, &nonblock_io) ) {
374                      std::cerr << "LSCPServer: ioctlsocket: set FIONBIO failed. Error " << WSAGetLastError() << std::endl;
375                      exit(EXIT_FAILURE);
376                    }
377            #else
378                  if (fcntl(socket, F_SETFL, O_NONBLOCK)) {                  if (fcntl(socket, F_SETFL, O_NONBLOCK)) {
379                          std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;                          std::cerr << "LSCPServer: F_SETFL O_NONBLOCK failed." << std::endl;
380                          exit(EXIT_FAILURE);                          exit(EXIT_FAILURE);
381                  }                  }
382                    #endif
383    
384                  // Parser initialization                  // Parser initialization
385                  yyparse_param_t yyparse_param;                  yyparse_param_t yyparse_param;
# Line 327  int LSCPServer::Main() { Line 403  int LSCPServer::Main() {
403                                  int dummy; // just a temporary hack to fulfill the restart() function prototype                                  int dummy; // just a temporary hack to fulfill the restart() function prototype
404                                  restart(NULL, dummy); // restart the 'scanner'                                  restart(NULL, dummy); // restart the 'scanner'
405                                  currentSocket = (*iter).hSession;  //a hack                                  currentSocket = (*iter).hSession;  //a hack
406                                    itCurrentSession = iter; // another hack
407                                  dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));                                  dmsg(2,("LSCPServer: [%s]\n",bufferedCommands[currentSocket].c_str()));
408                                  if ((*iter).bVerbose) { // if echo mode enabled                                  if ((*iter).bVerbose) { // if echo mode enabled
409                                      AnswerClient(bufferedCommands[currentSocket]);                                      AnswerClient(bufferedCommands[currentSocket]);
410                                  }                                  }
411                                  int result = yyparse(&(*iter));                                  int result = yyparse(&(*iter));
412                                  currentSocket = -1;     //continuation of a hack                                  currentSocket = -1;     //continuation of a hack
413                                    itCurrentSession = Sessions.end(); // hack as well
414                                  dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));                                  dmsg(3,("LSCPServer: Done parsing on socket %d.\n", currentSocket));
415                                  if (result == LSCP_QUIT) { //Was it a quit command by any chance?                                  if (result == LSCP_QUIT) { //Was it a quit command by any chance?
416                                          CloseConnection(iter);                                          CloseConnection(iter);
# Line 360  void LSCPServer::CloseConnection( std::v Line 438  void LSCPServer::CloseConnection( std::v
438          NotifyMutex.Lock();          NotifyMutex.Lock();
439          bufferedCommands.erase(socket);          bufferedCommands.erase(socket);
440          bufferedNotifies.erase(socket);          bufferedNotifies.erase(socket);
441            #if defined(WIN32)
442            closesocket(socket);
443            #else
444          close(socket);          close(socket);
445            #endif
446          NotifyMutex.Unlock();          NotifyMutex.Unlock();
447  }  }
448    
449    void LSCPServer::LockRTNotify() {
450        RTNotifyMutex.Lock();
451    }
452    
453    void LSCPServer::UnlockRTNotify() {
454        RTNotifyMutex.Unlock();
455    }
456    
457  int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {  int LSCPServer::EventSubscribers( std::list<LSCPEvent::event_t> events ) {
458          int subs = 0;          int subs = 0;
459          SubscriptionMutex.Lock();          SubscriptionMutex.Lock();
# Line 425  extern int GetLSCPCommand( void *buf, in Line 515  extern int GetLSCPCommand( void *buf, in
515          return command.size();          return command.size();
516  }  }
517    
518    extern yyparse_param_t* GetCurrentYaccSession() {
519        return &(*itCurrentSession);
520    }
521    
522  /**  /**
523   * Will be called to try to read the command from the socket   * Will be called to try to read the command from the socket
524   * If command is read, it will return true. Otherwise false is returned.   * If command is read, it will return true. Otherwise false is returned.
# Line 435  bool LSCPServer::GetLSCPCommand( std::ve Line 529  bool LSCPServer::GetLSCPCommand( std::ve
529          char c;          char c;
530          int i = 0;          int i = 0;
531          while (true) {          while (true) {
532                    #if defined(WIN32)
533                    int result = recv(socket, (char *)&c, 1, 0); //Read one character at a time for now
534                    #else
535                  int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now                  int result = recv(socket, (void *)&c, 1, 0); //Read one character at a time for now
536                    #endif
537                  if (result == 0) { //socket was selected, so 0 here means client has closed the connection                  if (result == 0) { //socket was selected, so 0 here means client has closed the connection
538                          CloseConnection(iter);                          CloseConnection(iter);
539                          break;                          break;
# Line 450  bool LSCPServer::GetLSCPCommand( std::ve Line 548  bool LSCPServer::GetLSCPCommand( std::ve
548                          }                          }
549                          bufferedCommands[socket] += c;                          bufferedCommands[socket] += c;
550                  }                  }
551                    #if defined(WIN32)
552                    if (result == SOCKET_ERROR) {
553                        int wsa_lasterror = WSAGetLastError();
554                            if (wsa_lasterror == WSAEWOULDBLOCK) //Would block, try again later.
555                                    return false;
556                            dmsg(2,("LSCPScanner: Socket error after recv() Error %d.\n", wsa_lasterror));
557                            CloseConnection(iter);
558                            break;
559                    }
560                    #else
561                  if (result == -1) {                  if (result == -1) {
562                          if (errno == EAGAIN) //Would block, try again later.                          if (errno == EAGAIN) //Would block, try again later.
563                                  return false;                                  return false;
# Line 488  bool LSCPServer::GetLSCPCommand( std::ve Line 596  bool LSCPServer::GetLSCPCommand( std::ve
596                          CloseConnection(iter);                          CloseConnection(iter);
597                          break;                          break;
598                  }                  }
599                    #endif
600          }          }
601          return false;          return false;
602  }  }
# Line 612  EngineChannel* LSCPServer::GetEngineChan Line 721  EngineChannel* LSCPServer::GetEngineChan
721      EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();      EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
722      if (!pEngineChannel) throw Exception("There is no engine deployed on this sampler channel yet");      if (!pEngineChannel) throw Exception("There is no engine deployed on this sampler channel yet");
723    
724      return pEngineChannel;              return pEngineChannel;
725  }  }
726    
727  /**  /**
# Line 761  String LSCPServer::GetEngineInfo(String Line 870  String LSCPServer::GetEngineInfo(String
870      LockRTNotify();      LockRTNotify();
871      try {      try {
872          Engine* pEngine = EngineFactory::Create(EngineName);          Engine* pEngine = EngineFactory::Create(EngineName);
873          result.Add("DESCRIPTION", pEngine->Description());          result.Add("DESCRIPTION", _escapeLscpResponse(pEngine->Description()));
874          result.Add("VERSION",     pEngine->Version());          result.Add("VERSION",     pEngine->Version());
875          EngineFactory::Destroy(pEngine);          EngineFactory::Destroy(pEngine);
876      }      }
# Line 834  String LSCPServer::GetChannelInfo(uint u Line 943  String LSCPServer::GetChannelInfo(uint u
943          if (pSamplerChannel->GetMidiInputChannel() == midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");          if (pSamplerChannel->GetMidiInputChannel() == midi_chan_all) result.Add("MIDI_INPUT_CHANNEL", "ALL");
944          else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());          else result.Add("MIDI_INPUT_CHANNEL", pSamplerChannel->GetMidiInputChannel());
945    
946            // convert the filename into the correct encoding as defined for LSCP
947            // (especially in terms of special characters -> escape sequences)
948            if (InstrumentFileName != "NONE" && InstrumentFileName != "") {
949    #if WIN32
950                InstrumentFileName = Path::fromWindows(InstrumentFileName).toLscp();
951    #else
952                // assuming POSIX
953                InstrumentFileName = Path::fromPosix(InstrumentFileName).toLscp();
954    #endif
955            }
956    
957          result.Add("INSTRUMENT_FILE", InstrumentFileName);          result.Add("INSTRUMENT_FILE", InstrumentFileName);
958          result.Add("INSTRUMENT_NR", InstrumentIndex);          result.Add("INSTRUMENT_NR", InstrumentIndex);
959          result.Add("INSTRUMENT_NAME", InstrumentName);          result.Add("INSTRUMENT_NAME", _escapeLscpResponse(InstrumentName));
960          result.Add("INSTRUMENT_STATUS", InstrumentStatus);          result.Add("INSTRUMENT_STATUS", InstrumentStatus);
961          result.Add("MUTE", Mute == -1 ? "MUTED_BY_SOLO" : (Mute ? "true" : "false"));          result.Add("MUTE", Mute == -1 ? "MUTED_BY_SOLO" : (Mute ? "true" : "false"));
962          result.Add("SOLO", Solo);          result.Add("SOLO", Solo);
# Line 1778  String LSCPServer::GetMidiInstrumentMapp Line 1898  String LSCPServer::GetMidiInstrumentMapp
1898          std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t>::iterator iter = mappings.find(idx);          std::map<midi_prog_index_t,MidiInstrumentMapper::entry_t>::iterator iter = mappings.find(idx);
1899          if (iter == mappings.end()) result.Error("there is no map entry with that index");          if (iter == mappings.end()) result.Error("there is no map entry with that index");
1900          else { // found          else { // found
1901              result.Add("NAME", iter->second.Name);  
1902                // convert the filename into the correct encoding as defined for LSCP
1903                // (especially in terms of special characters -> escape sequences)
1904    #if WIN32
1905                const String instrumentFileName = Path::fromWindows(iter->second.InstrumentFile).toLscp();
1906    #else
1907                // assuming POSIX
1908                const String instrumentFileName = Path::fromPosix(iter->second.InstrumentFile).toLscp();
1909    #endif
1910    
1911                result.Add("NAME", _escapeLscpResponse(iter->second.Name));
1912              result.Add("ENGINE_NAME", iter->second.EngineName);              result.Add("ENGINE_NAME", iter->second.EngineName);
1913              result.Add("INSTRUMENT_FILE", iter->second.InstrumentFile);              result.Add("INSTRUMENT_FILE", instrumentFileName);
1914              result.Add("INSTRUMENT_NR", (int) iter->second.InstrumentIndex);              result.Add("INSTRUMENT_NR", (int) iter->second.InstrumentIndex);
1915              String instrumentName;              String instrumentName;
1916              Engine* pEngine = EngineFactory::Create(iter->second.EngineName);              Engine* pEngine = EngineFactory::Create(iter->second.EngineName);
# Line 1793  String LSCPServer::GetMidiInstrumentMapp Line 1923  String LSCPServer::GetMidiInstrumentMapp
1923                  }                  }
1924                  EngineFactory::Destroy(pEngine);                  EngineFactory::Destroy(pEngine);
1925              }              }
1926              result.Add("INSTRUMENT_NAME", instrumentName);              result.Add("INSTRUMENT_NAME", _escapeLscpResponse(instrumentName));
1927              switch (iter->second.LoadMode) {              switch (iter->second.LoadMode) {
1928                  case MidiInstrumentMapper::ON_DEMAND:                  case MidiInstrumentMapper::ON_DEMAND:
1929                      result.Add("LOAD_MODE", "ON_DEMAND");                      result.Add("LOAD_MODE", "ON_DEMAND");
# Line 1948  String LSCPServer::GetMidiInstrumentMap( Line 2078  String LSCPServer::GetMidiInstrumentMap(
2078      dmsg(2,("LSCPServer: GetMidiInstrumentMap()\n"));      dmsg(2,("LSCPServer: GetMidiInstrumentMap()\n"));
2079      LSCPResultSet result;      LSCPResultSet result;
2080      try {      try {
2081          result.Add("NAME", MidiInstrumentMapper::MapName(MidiMapID));          result.Add("NAME", _escapeLscpResponse(MidiInstrumentMapper::MapName(MidiMapID)));
2082          result.Add("DEFAULT", MidiInstrumentMapper::GetDefaultMap() == MidiMapID);          result.Add("DEFAULT", MidiInstrumentMapper::GetDefaultMap() == MidiMapID);
2083      } catch (Exception e) {      } catch (Exception e) {
2084          result.Error(e);          result.Error(e);
# Line 1999  String LSCPServer::CreateFxSend(uint uiS Line 2129  String LSCPServer::CreateFxSend(uint uiS
2129      LSCPResultSet result;      LSCPResultSet result;
2130      try {      try {
2131          EngineChannel* pEngineChannel = GetEngineChannel(uiSamplerChannel);          EngineChannel* pEngineChannel = GetEngineChannel(uiSamplerChannel);
2132            
2133          FxSend* pFxSend = pEngineChannel->AddFxSend(MidiCtrl, Name);          FxSend* pFxSend = pEngineChannel->AddFxSend(MidiCtrl, Name);
2134          if (!pFxSend) throw Exception("Could not add FxSend, don't ask, I don't know why (probably a bug)");          if (!pFxSend) throw Exception("Could not add FxSend, don't ask, I don't know why (probably a bug)");
2135    
# Line 2083  String LSCPServer::GetFxSendInfo(uint ui Line 2213  String LSCPServer::GetFxSendInfo(uint ui
2213      try {      try {
2214          EngineChannel* pEngineChannel = GetEngineChannel(uiSamplerChannel);          EngineChannel* pEngineChannel = GetEngineChannel(uiSamplerChannel);
2215          FxSend* pFxSend = GetFxSend(uiSamplerChannel, FxSendID);          FxSend* pFxSend = GetFxSend(uiSamplerChannel, FxSendID);
2216            
2217          // gather audio routing informations          // gather audio routing informations
2218          String AudioRouting;          String AudioRouting;
2219          for (int chan = 0; chan < pEngineChannel->Channels(); chan++) {          for (int chan = 0; chan < pEngineChannel->Channels(); chan++) {
# Line 2092  String LSCPServer::GetFxSendInfo(uint ui Line 2222  String LSCPServer::GetFxSendInfo(uint ui
2222          }          }
2223    
2224          // success          // success
2225          result.Add("NAME", pFxSend->Name());          result.Add("NAME", _escapeLscpResponse(pFxSend->Name()));
2226          result.Add("MIDI_CONTROLLER", pFxSend->MidiController());          result.Add("MIDI_CONTROLLER", pFxSend->MidiController());
2227          result.Add("LEVEL", ToString(pFxSend->Level()));          result.Add("LEVEL", ToString(pFxSend->Level()));
2228          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);          result.Add("AUDIO_OUTPUT_ROUTING", AudioRouting);
# Line 2166  String LSCPServer::EditSamplerChannelIns Line 2296  String LSCPServer::EditSamplerChannelIns
2296          if (!pSamplerChannel) throw Exception("Invalid sampler channel number " + ToString(uiSamplerChannel));          if (!pSamplerChannel) throw Exception("Invalid sampler channel number " + ToString(uiSamplerChannel));
2297          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();          EngineChannel* pEngineChannel = pSamplerChannel->GetEngineChannel();
2298          if (!pEngineChannel) throw Exception("No engine type assigned to sampler channel");          if (!pEngineChannel) throw Exception("No engine type assigned to sampler channel");
2299            if (pEngineChannel->InstrumentStatus() < 0) throw Exception("No instrument loaded to sampler channel");
2300          Engine* pEngine = pEngineChannel->GetEngine();          Engine* pEngine = pEngineChannel->GetEngine();
2301          InstrumentManager* pInstrumentManager = pEngine->GetInstrumentManager();          InstrumentManager* pInstrumentManager = pEngine->GetInstrumentManager();
2302          if (!pInstrumentManager) throw Exception("Engine does not provide an instrument manager");          if (!pInstrumentManager) throw Exception("Engine does not provide an instrument manager");
# Line 2214  String LSCPServer::ResetSampler() { Line 2345  String LSCPServer::ResetSampler() {
2345   */   */
2346  String LSCPServer::GetServerInfo() {  String LSCPServer::GetServerInfo() {
2347      dmsg(2,("LSCPServer: GetServerInfo()\n"));      dmsg(2,("LSCPServer: GetServerInfo()\n"));
2348        const std::string description =
2349            _escapeLscpResponse("LinuxSampler - modular, streaming capable sampler");
2350      LSCPResultSet result;      LSCPResultSet result;
2351      result.Add("DESCRIPTION", "LinuxSampler - modular, streaming capable sampler");      result.Add("DESCRIPTION", description);
2352      result.Add("VERSION", VERSION);      result.Add("VERSION", VERSION);
2353      result.Add("PROTOCOL_VERSION", ToString(LSCP_RELEASE_MAJOR) + "." + ToString(LSCP_RELEASE_MINOR));      result.Add("PROTOCOL_VERSION", ToString(LSCP_RELEASE_MAJOR) + "." + ToString(LSCP_RELEASE_MINOR));
2354  #if HAVE_SQLITE3  #if HAVE_SQLITE3
# Line 2223  String LSCPServer::GetServerInfo() { Line 2356  String LSCPServer::GetServerInfo() {
2356  #else  #else
2357      result.Add("INSTRUMENTS_DB_SUPPORT", "no");      result.Add("INSTRUMENTS_DB_SUPPORT", "no");
2358  #endif  #endif
2359        
2360        return result.Produce();
2361    }
2362    
2363    /**
2364     * Will be called by the parser to return the current number of all active streams.
2365     */
2366    String LSCPServer::GetTotalStreamCount() {
2367        dmsg(2,("LSCPServer: GetTotalStreamCount()\n"));
2368        LSCPResultSet result;
2369        result.Add(pSampler->GetDiskStreamCount());
2370      return result.Produce();      return result.Produce();
2371  }  }
2372    
# Line 2265  String LSCPServer::SetGlobalVolume(doubl Line 2408  String LSCPServer::SetGlobalVolume(doubl
2408      return result.Produce();      return result.Produce();
2409  }  }
2410    
2411    String LSCPServer::GetFileInstruments(String Filename) {
2412        dmsg(2,("LSCPServer: GetFileInstruments(String Filename=%s)\n",Filename.c_str()));
2413        LSCPResultSet result;
2414        try {
2415            VerifyFile(Filename);
2416        } catch (Exception e) {
2417            result.Error(e);
2418            return result.Produce();
2419        }
2420        // try to find a sampler engine that can handle the file
2421        bool bFound = false;
2422        std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
2423        for (int i = 0; !bFound && i < engineTypes.size(); i++) {
2424            Engine* pEngine = NULL;
2425            try {
2426                pEngine = EngineFactory::Create(engineTypes[i]);
2427                if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
2428                InstrumentManager* pManager = pEngine->GetInstrumentManager();
2429                if (pManager) {
2430                    std::vector<InstrumentManager::instrument_id_t> IDs =
2431                        pManager->GetInstrumentFileContent(Filename);
2432                    // return the amount of instruments in the file
2433                    result.Add(IDs.size());
2434                    // no more need to ask other engine types
2435                    bFound = true;
2436                } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
2437            } catch (Exception e) {
2438                // NOOP, as exception is thrown if engine doesn't support file
2439            }
2440            if (pEngine) EngineFactory::Destroy(pEngine);
2441        }
2442    
2443        if (!bFound) result.Error("Unknown file format");
2444        return result.Produce();
2445    }
2446    
2447    String LSCPServer::ListFileInstruments(String Filename) {
2448        dmsg(2,("LSCPServer: ListFileInstruments(String Filename=%s)\n",Filename.c_str()));
2449        LSCPResultSet result;
2450        try {
2451            VerifyFile(Filename);
2452        } catch (Exception e) {
2453            result.Error(e);
2454            return result.Produce();
2455        }
2456        // try to find a sampler engine that can handle the file
2457        bool bFound = false;
2458        std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
2459        for (int i = 0; !bFound && i < engineTypes.size(); i++) {
2460            Engine* pEngine = NULL;
2461            try {
2462                pEngine = EngineFactory::Create(engineTypes[i]);
2463                if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
2464                InstrumentManager* pManager = pEngine->GetInstrumentManager();
2465                if (pManager) {
2466                    std::vector<InstrumentManager::instrument_id_t> IDs =
2467                        pManager->GetInstrumentFileContent(Filename);
2468                    // return a list of IDs of the instruments in the file
2469                    String s;
2470                    for (int j = 0; j < IDs.size(); j++) {
2471                        if (s.size()) s += ",";
2472                        s += ToString(IDs[j].Index);
2473                    }
2474                    result.Add(s);
2475                    // no more need to ask other engine types
2476                    bFound = true;
2477                } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
2478            } catch (Exception e) {
2479                // NOOP, as exception is thrown if engine doesn't support file
2480            }
2481            if (pEngine) EngineFactory::Destroy(pEngine);
2482        }
2483    
2484        if (!bFound) result.Error("Unknown file format");
2485        return result.Produce();
2486    }
2487    
2488    String LSCPServer::GetFileInstrumentInfo(String Filename, uint InstrumentID) {
2489        dmsg(2,("LSCPServer: GetFileInstrumentInfo(String Filename=%s, InstrumentID=%d)\n",Filename.c_str(),InstrumentID));
2490        LSCPResultSet result;
2491        try {
2492            VerifyFile(Filename);
2493        } catch (Exception e) {
2494            result.Error(e);
2495            return result.Produce();
2496        }
2497        InstrumentManager::instrument_id_t id;
2498        id.FileName = Filename;
2499        id.Index    = InstrumentID;
2500        // try to find a sampler engine that can handle the file
2501        bool bFound = false;
2502        bool bFatalErr = false;
2503        std::vector<String> engineTypes = EngineFactory::AvailableEngineTypes();
2504        for (int i = 0; !bFound && !bFatalErr && i < engineTypes.size(); i++) {
2505            Engine* pEngine = NULL;
2506            try {
2507                pEngine = EngineFactory::Create(engineTypes[i]);
2508                if (!pEngine) throw Exception("Internal error: could not create '" + engineTypes[i] + "' engine");
2509                InstrumentManager* pManager = pEngine->GetInstrumentManager();
2510                if (pManager) {
2511                    // check if the instrument index is valid
2512                    // FIXME: this won't work if an engine only supports parts of the instrument file
2513                    std::vector<InstrumentManager::instrument_id_t> IDs =
2514                        pManager->GetInstrumentFileContent(Filename);
2515                    if (std::find(IDs.begin(), IDs.end(), id) == IDs.end()) {
2516                        std::stringstream ss;
2517                        ss << "Invalid instrument index " << InstrumentID << " for instrument file '" << Filename << "'";
2518                        bFatalErr = true;
2519                        throw Exception(ss.str());
2520                    }
2521                    // get the info of the requested instrument
2522                    InstrumentManager::instrument_info_t info =
2523                        pManager->GetInstrumentInfo(id);
2524                    // return detailed informations about the file
2525                    result.Add("NAME", info.InstrumentName);
2526                    result.Add("FORMAT_FAMILY", engineTypes[i]);
2527                    result.Add("FORMAT_VERSION", info.FormatVersion);
2528                    result.Add("PRODUCT", info.Product);
2529                    result.Add("ARTISTS", info.Artists);
2530                    // no more need to ask other engine types
2531                    bFound = true;
2532                } else dmsg(1,("Warning: engine '%s' does not provide an instrument manager\n", engineTypes[i].c_str()));
2533            } catch (Exception e) {
2534                // usually NOOP, as exception is thrown if engine doesn't support file
2535                if (bFatalErr) result.Error(e);
2536            }
2537            if (pEngine) EngineFactory::Destroy(pEngine);
2538        }
2539    
2540        if (!bFound && !bFatalErr) result.Error("Unknown file format");
2541        return result.Produce();
2542    }
2543    
2544    void LSCPServer::VerifyFile(String Filename) {
2545        #if WIN32
2546        WIN32_FIND_DATA win32FileAttributeData;
2547        BOOL res = GetFileAttributesEx( Filename.c_str(), GetFileExInfoStandard, &win32FileAttributeData );
2548        if (!res) {
2549            std::stringstream ss;
2550            ss << "File does not exist, GetFileAttributesEx failed `" << Filename << "`: Error " << GetLastError();
2551            throw Exception(ss.str());
2552        }
2553        if ( win32FileAttributeData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) {
2554            throw Exception("Directory is specified");
2555        }
2556        #else
2557        struct stat statBuf;
2558        int res = stat(Filename.c_str(), &statBuf);
2559        if (res) {
2560            std::stringstream ss;
2561            ss << "Fail to stat `" << Filename << "`: " << strerror(errno);
2562            throw Exception(ss.str());
2563        }
2564    
2565        if (S_ISDIR(statBuf.st_mode)) {
2566            throw Exception("Directory is specified");
2567        }
2568        #endif
2569    }
2570    
2571  /**  /**
2572   * Will be called by the parser to subscribe a client (frontend) on the   * Will be called by the parser to subscribe a client (frontend) on the
2573   * server for receiving event messages.   * server for receiving event messages.
# Line 2346  String LSCPServer::GetDbInstrumentDirect Line 2649  String LSCPServer::GetDbInstrumentDirect
2649    
2650          for (int i = 0; i < dirs->size(); i++) {          for (int i = 0; i < dirs->size(); i++) {
2651              if (list != "") list += ",";              if (list != "") list += ",";
2652              list += "'" + dirs->at(i) + "'";              list += "'" + InstrumentsDb::toEscapedPath(dirs->at(i)) + "'";
2653          }          }
2654    
2655          result.Add(list);          result.Add(list);
# Line 2366  String LSCPServer::GetDbInstrumentDirect Line 2669  String LSCPServer::GetDbInstrumentDirect
2669      try {      try {
2670          DbDirectory info = InstrumentsDb::GetInstrumentsDb()->GetDirectoryInfo(Dir);          DbDirectory info = InstrumentsDb::GetInstrumentsDb()->GetDirectoryInfo(Dir);
2671    
2672          result.Add("DESCRIPTION", info.Description);          result.Add("DESCRIPTION", _escapeLscpResponse(info.Description));
2673          result.Add("CREATED", info.Created);          result.Add("CREATED", info.Created);
2674          result.Add("MODIFIED", info.Modified);          result.Add("MODIFIED", info.Modified);
2675      } catch (Exception e) {      } catch (Exception e) {
# Line 2472  String LSCPServer::AddDbInstruments(Stri Line 2775  String LSCPServer::AddDbInstruments(Stri
2775          } else {          } else {
2776              throw Exception("Unknown scan mode: " + ScanMode);              throw Exception("Unknown scan mode: " + ScanMode);
2777          }          }
2778            
2779          if (bBackground) result = id;          if (bBackground) result = id;
2780      } catch (Exception e) {      } catch (Exception e) {
2781           result.Error(e);           result.Error(e);
# Line 2523  String LSCPServer::GetDbInstruments(Stri Line 2826  String LSCPServer::GetDbInstruments(Stri
2826    
2827          for (int i = 0; i < instrs->size(); i++) {          for (int i = 0; i < instrs->size(); i++) {
2828              if (list != "") list += ",";              if (list != "") list += ",";
2829              list += "'" + instrs->at(i) + "'";              list += "'" + InstrumentsDb::toEscapedPath(instrs->at(i)) + "'";
2830          }          }
2831    
2832          result.Add(list);          result.Add(list);
# Line 2550  String LSCPServer::GetDbInstrumentInfo(S Line 2853  String LSCPServer::GetDbInstrumentInfo(S
2853          result.Add("SIZE", (int)info.Size);          result.Add("SIZE", (int)info.Size);
2854          result.Add("CREATED", info.Created);          result.Add("CREATED", info.Created);
2855          result.Add("MODIFIED", info.Modified);          result.Add("MODIFIED", info.Modified);
2856          result.Add("DESCRIPTION", FilterEndlines(info.Description));          result.Add("DESCRIPTION", _escapeLscpResponse(info.Description));
2857          result.Add("IS_DRUM", info.IsDrum);          result.Add("IS_DRUM", info.IsDrum);
2858          result.Add("PRODUCT", FilterEndlines(info.Product));          result.Add("PRODUCT", _escapeLscpResponse(info.Product));
2859          result.Add("ARTISTS", FilterEndlines(info.Artists));          result.Add("ARTISTS", _escapeLscpResponse(info.Artists));
2860          result.Add("KEYWORDS", FilterEndlines(info.Keywords));          result.Add("KEYWORDS", _escapeLscpResponse(info.Keywords));
2861      } catch (Exception e) {      } catch (Exception e) {
2862           result.Error(e);           result.Error(e);
2863      }      }
# Line 2671  String LSCPServer::FindDbInstrumentDirec Line 2974  String LSCPServer::FindDbInstrumentDirec
2974    
2975          for (int i = 0; i < pDirectories->size(); i++) {          for (int i = 0; i < pDirectories->size(); i++) {
2976              if (list != "") list += ",";              if (list != "") list += ",";
2977              list += "'" + pDirectories->at(i) + "'";              list += "'" + InstrumentsDb::toEscapedPath(pDirectories->at(i)) + "'";
2978          }          }
2979    
2980          result.Add(list);          result.Add(list);
# Line 2727  String LSCPServer::FindDbInstruments(Str Line 3030  String LSCPServer::FindDbInstruments(Str
3030    
3031          for (int i = 0; i < pInstruments->size(); i++) {          for (int i = 0; i < pInstruments->size(); i++) {
3032              if (list != "") list += ",";              if (list != "") list += ",";
3033              list += "'" + pInstruments->at(i) + "'";              list += "'" + InstrumentsDb::toEscapedPath(pInstruments->at(i)) + "'";
3034          }          }
3035    
3036          result.Add(list);          result.Add(list);
# Line 2740  String LSCPServer::FindDbInstruments(Str Line 3043  String LSCPServer::FindDbInstruments(Str
3043      return result.Produce();      return result.Produce();
3044  }  }
3045    
3046    String LSCPServer::FormatInstrumentsDb() {
3047        dmsg(2,("LSCPServer: FormatInstrumentsDb()\n"));
3048        LSCPResultSet result;
3049    #if HAVE_SQLITE3
3050        try {
3051            InstrumentsDb::GetInstrumentsDb()->Format();
3052        } catch (Exception e) {
3053             result.Error(e);
3054        }
3055    #else
3056        result.Error(String(DOESNT_HAVE_SQLITE3), 0);
3057    #endif
3058        return result.Produce();
3059    }
3060    
3061    
3062  /**  /**
3063   * Will be called by the parser to enable or disable echo mode; if echo   * Will be called by the parser to enable or disable echo mode; if echo
# Line 2759  String LSCPServer::SetEcho(yyparse_param Line 3077  String LSCPServer::SetEcho(yyparse_param
3077      }      }
3078      return result.Produce();      return result.Produce();
3079  }  }
   
 String LSCPServer::FilterEndlines(String s) {  
     String s2 = s;  
     for (int i = 0; i < s2.length(); i++) {  
         if (s2.at(i) == '\r') s2.at(i) = ' ';  
         else if (s2.at(i) == '\n') s2.at(i) = ' ';  
     }  
       
     return s2;  
 }  
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