lib/dvb/db.cpp

   1 #include <errno.h>
   2 #include <lib/dvb/db.h>
   3 #include <lib/dvb/dvb.h>
   4 #include <lib/dvb/frontend.h>
   5 #include <lib/dvb/epgcache.h>
   6 #include <lib/base/eerror.h>
   7 #include <lib/base/estring.h>
   8 #include <dvbsi++/service_description_section.h>
   9 #include <dvbsi++/descriptor_tag.h>
  10 #include <dvbsi++/service_descriptor.h>
  11 #include <dvbsi++/satellite_delivery_system_descriptor.h>
  12
  13 DEFINE_REF(eDVBService);
  14
  15 RESULT eBouquet::addService(const eServiceReference &ref, eServiceReference before)
  16 {
  17         list::iterator it =
  18                 std::find(m_services.begin(), m_services.end(), ref);
  19         if ( it != m_services.end() )
  20                 return -1;
  21         if (before.valid())
  22         {
  23                 it = std::find(m_services.begin(), m_services.end(), before);
  24                 m_services.insert(it, ref);
  25         }
  26         else
  27                 m_services.push_back(ref);
  28         return 0;
  29 }
  30
  31 RESULT eBouquet::removeService(const eServiceReference &ref)
  32 {
  33         list::iterator it =
  34                 std::find(m_services.begin(), m_services.end(), ref);
  35         if ( it == m_services.end() )
  36                 return -1;
  37         m_services.erase(it);
  38         return 0;
  39 }
  40
  41 RESULT eBouquet::moveService(const eServiceReference &ref, unsigned int pos)
  42 {
  43         if ( pos < 0 || pos >= m_services.size() )
  44                 return -1;
  45         ++pos;
  46         list::iterator source=m_services.end();
  47         list::iterator dest=m_services.end();
  48         bool forward = false;
  49         for (list::iterator it(m_services.begin()); it != m_services.end(); ++it)
  50         {
  51                 if (dest == m_services.end() && !--pos)
  52                         dest = it;
  53                 if (*it == ref)
  54                 {
  55                         source = it;
  56                         forward = pos>0;
  57                 }
  58                 if (dest != m_services.end() && source != m_services.end())
  59                         break;
  60         }
  61         if (dest == m_services.end() || source == m_services.end() || source == dest)
  62                 return -1;
  63         while (source != dest)
  64         {
  65                 if (forward)
  66                         std::iter_swap(source++, source);
  67                 else
  68                         std::iter_swap(source--, source);
  69         }
  70         return 0;
  71 }
  72
  73 RESULT eBouquet::flushChanges()
  74 {
  75         FILE *f=fopen((CONFIGDIR"/enigma2/"+m_filename).c_str(), "w");
  76         if (!f)
  77                 return -1;
  78         if ( fprintf(f, "#NAME %s\r\n", m_bouquet_name.c_str()) < 0 )
  79                 goto err;
  80         for (list::iterator i(m_services.begin()); i != m_services.end(); ++i)
  81         {
  82                 eServiceReference tmp = *i;
  83                 std::string str = tmp.path;
  84                 if ( fprintf(f, "#SERVICE %s\r\n", tmp.toString().c_str()) < 0 )
  85                         goto err;
  86                 if ( i->name.length() )
  87                         if ( fprintf(f, "#DESCRIPTION %s\r\n", i->name.c_str()) < 0 )
  88                                 goto err;
  89         }
  90         fclose(f);
  91         return 0;
  92 err:
  93         fclose(f);
  94         eDebug("couldn't write file %s", m_filename.c_str());
  95         return -1;
  96 }
  97
  98 RESULT eBouquet::setListName(const std::string &name)
  99 {
 100         m_bouquet_name = name;
 101         return 0;
 102 }
 103
 104 eDVBService::eDVBService()
 105         :m_cache(0), m_flags(0)
 106 {
 107 }
 108
 109 eDVBService::~eDVBService()
 110 {
 111         delete [] m_cache;
 112 }
 113
 114 eDVBService &eDVBService::operator=(const eDVBService &s)
 115 {
 116         m_service_name = s.m_service_name;
 117         m_service_name_sort = s.m_service_name_sort;
 118         m_provider_name = s.m_provider_name;
 119         m_flags = s.m_flags;
 120         m_ca = s.m_ca;
 121         copyCache(s.m_cache);
 122         return *this;
 123 }
 124
 125 void eDVBService::genSortName()
 126 {
 127         m_service_name_sort = removeDVBChars(m_service_name);
 128         makeUpper(m_service_name_sort);
 129         while ((!m_service_name_sort.empty()) && m_service_name_sort[0] == ' ')
 130                 m_service_name_sort.erase(0, 1);
 131
 132                 /* put unnamed services at the end, not at the beginning. */
 133         if (m_service_name_sort.empty())
 134                 m_service_name_sort = "\xFF";
 135 }
 136
 137 RESULT eDVBService::getName(const eServiceReference &ref, std::string &name)
 138 {
 139         if (!ref.name.empty())
 140                 name = ref.name; // use renamed service name..
 141         else if (!m_service_name.empty())
 142                 name = m_service_name;
 143         else
 144                 name = "(...)";
 145         return 0;
 146 }
 147
 148 RESULT eDVBService::getEvent(const eServiceReference &ref, ePtr<eServiceEvent> &ptr, time_t start_time)
 149 {
 150         return eEPGCache::getInstance()->lookupEventTime(ref, start_time, ptr);
 151 }
 152
 153 int eDVBService::isPlayable(const eServiceReference &ref, const eServiceReference &ignore)
 154 {
 155         ePtr<eDVBResourceManager> res_mgr;
 156         if ( eDVBResourceManager::getInstance( res_mgr ) )
 157                 eDebug("isPlayble... no res manager!!");
 158         else
 159         {
 160                 eDVBChannelID chid, chid_ignore;
 161                 ((const eServiceReferenceDVB&)ref).getChannelID(chid);
 162                 ((const eServiceReferenceDVB&)ignore).getChannelID(chid_ignore);
 163                 return res_mgr->canAllocateChannel(chid, chid_ignore);
 164         }
 165         return 0;
 166 }
 167
 168 int eDVBService::checkFilter(const eServiceReferenceDVB &ref, const eDVBChannelQuery &query)
 169 {
 170         int res = 0;
 171         switch (query.m_type)
 172         {
 173         case eDVBChannelQuery::tName:
 174                 res = m_service_name_sort.find(query.m_string) != std::string::npos;
 175                 break;
 176         case eDVBChannelQuery::tProvider:
 177                 res = m_provider_name.find(query.m_string) != std::string::npos;
 178                 break;
 179         case eDVBChannelQuery::tType:
 180                 res = ref.getServiceType() == query.m_int;
 181                 break;
 182         case eDVBChannelQuery::tBouquet:
 183                 res = 0;
 184                 break;
 185         case eDVBChannelQuery::tSatellitePosition:
 186                 res = ((unsigned int)ref.getDVBNamespace().get())>>16 == (unsigned int)query.m_int;
 187                 break;
 188         case eDVBChannelQuery::tFlags:
 189                 res = (m_flags & query.m_int) == query.m_int;
 190                 break;
 191         case eDVBChannelQuery::tChannelID:
 192         {
 193                 eDVBChannelID chid;
 194                 ref.getChannelID(chid);
 195                 res = chid == query.m_channelid;
 196                 break;
 197         }
 198         case eDVBChannelQuery::tAND:
 199                 res = checkFilter(ref, *query.m_p1) && checkFilter(ref, *query.m_p2);
 200                 break;
 201         case eDVBChannelQuery::tOR:
 202                 res = checkFilter(ref, *query.m_p1) || checkFilter(ref, *query.m_p2);
 203                 break;
 204         case eDVBChannelQuery::tAny:
 205                 res = 1;
 206                 break;
 207         }
 208
 209         if (query.m_inverse)
 210                 return !res;
 211         else
 212                 return res;
 213 }
 214
 215 bool eDVBService::cacheEmpty()
 216 {
 217         if (m_cache)
 218                 for (int i=0; i < cacheMax; ++i)
 219                         if (m_cache[i] != -1)
 220                                 return false;
 221         return true;
 222 }
 223
 224 void eDVBService::initCache()
 225 {
 226         m_cache = new int[cacheMax];
 227         memset(m_cache, -1, sizeof(int) * cacheMax);
 228 }
 229
 230 void eDVBService::copyCache(int *source)
 231 {
 232         if (source)
 233         {
 234                 if (!m_cache)
 235                         m_cache = new int[cacheMax];
 236                 memcpy(m_cache, source, cacheMax * sizeof(int));
 237         }
 238         else
 239         {
 240                 delete [] m_cache;
 241                 m_cache = 0;
 242         }
 243 }
 244
 245 int eDVBService::getCacheEntry(cacheID id)
 246 {
 247         if (id >= cacheMax || !m_cache)
 248                 return -1;
 249         return m_cache[id];
 250 }
 251
 252 void eDVBService::setCacheEntry(cacheID id, int pid)
 253 {
 254         if (!m_cache)
 255                 initCache();
 256         if (id < cacheMax)
 257                 m_cache[id] = pid;
 258 }
 259
 260 DEFINE_REF(eDVBDB);
 261
 262         /* THIS CODE IS BAD. it should be replaced by somethine better. */
 263 void eDVBDB::reloadServicelist()
 264 {
 265         eDebug("---- opening lame channel db");
 266         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "rt");
 267         if (!f)
 268         {
 269                 struct stat s;
 270                 if ( !stat("lamedb", &s) )
 271                 {
 272                         if ( !stat(CONFIGDIR"/enigma2", &s) )
 273                         {
 274                                 rename("lamedb", CONFIGDIR"/enigma2/lamedb" );
 275                                 reloadServicelist();
 276                         }
 277                 }
 278                 return;
 279         }
 280         char line[256];
 281         if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
 282         {
 283                 eDebug("not a servicefile");
 284                 fclose(f);
 285                 return;
 286         }
 287         eDebug("reading services");
 288         if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
 289         {
 290                 eDebug("services invalid, no transponders");
 291                 fclose(f);
 292                 return;
 293         }
 294
 295         // clear all transponders
 296
 297         while (!feof(f))
 298         {
 299                 if (!fgets(line, 256, f))
 300                         break;
 301                 if (!strcmp(line, "end\n"))
 302                         break;
 303                 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
 304                 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
 305                 if (original_network_id == -1)
 306                         continue;
 307                 eDVBChannelID channelid = eDVBChannelID(
 308                         eDVBNamespace(dvb_namespace),
 309                         eTransportStreamID(transport_stream_id),
 310                         eOriginalNetworkID(original_network_id));
 311
 312                 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
 313                 while (!feof(f))
 314                 {
 315                         fgets(line, 256, f);
 316                         if (!strcmp(line, "/\n"))
 317                                 break;
 318                         if (line[1]=='s')
 319                         {
 320                                 eDVBFrontendParametersSatellite sat;
 321                                 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion,
 322                                         system=eDVBFrontendParametersSatellite::System::DVB_S,
 323                                         modulation=eDVBFrontendParametersSatellite::Modulation::QPSK,
 324                                         rolloff=eDVBFrontendParametersSatellite::RollOff::alpha_auto;
 325                                 sscanf(line+2, "%d:%d:%d:%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &orbital_position, &inversion, &system, &modulation, &rolloff);
 326                                 sat.frequency = frequency;
 327                                 sat.symbol_rate = symbol_rate;
 328                                 sat.polarisation = polarisation;
 329                                 sat.fec = fec;
 330                                 sat.orbital_position =
 331                                         orbital_position < 0 ? orbital_position + 3600 : orbital_position;
 332                                 sat.inversion = inversion;
 333                                 sat.system = system;
 334                                 sat.modulation = modulation;
 335                                 sat.roll_off = rolloff;
 336                                 feparm->setDVBS(sat);
 337                         } else if (line[1]=='t')
 338                         {
 339                                 eDVBFrontendParametersTerrestrial ter;
 340                                 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
 341                                 sscanf(line+2, "%d:%d:%d:%d:%d:%d:%d:%d:%d", &frequency, &bandwidth, &code_rate_HP, &code_rate_LP, &modulation, &transmission_mode, &guard_interval, &hierarchy, &inversion);
 342                                 ter.frequency = frequency;
 343                                 ter.bandwidth = bandwidth;
 344                                 ter.code_rate_HP = code_rate_HP;
 345                                 ter.code_rate_LP = code_rate_LP;
 346                                 ter.modulation = modulation;
 347                                 ter.transmission_mode = transmission_mode;
 348                                 ter.guard_interval = guard_interval;
 349                                 ter.hierarchy = hierarchy;
 350                                 ter.inversion = inversion;
 351                                 feparm->setDVBT(ter);
 352                         } else if (line[1]=='c')
 353                         {
 354                                 eDVBFrontendParametersCable cab;
 355                                 int frequency, symbol_rate,
 356                                         inversion=eDVBFrontendParametersCable::Inversion::Unknown,
 357                                         modulation=eDVBFrontendParametersCable::Modulation::Auto,
 358                                         fec_inner=eDVBFrontendParametersCable::FEC::fAuto;
 359                                 sscanf(line+2, "%d:%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation, &fec_inner);
 360                                 cab.frequency = frequency;
 361                                 cab.fec_inner = fec_inner;
 362                                 cab.inversion = inversion;
 363                                 cab.symbol_rate = symbol_rate;
 364                                 cab.modulation = modulation;
 365                                 feparm->setDVBC(cab);
 366                         }
 367                 }
 368                 addChannelToList(channelid, feparm);
 369         }
 370
 371         if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
 372         {
 373                 eDebug("services invalid, no services");
 374                 return;
 375         }
 376
 377         // clear all services
 378
 379         int count=0;
 380
 381         while (!feof(f))
 382         {
 383                 if (!fgets(line, 256, f))
 384                         break;
 385                 if (!strcmp(line, "end\n"))
 386                         break;
 387
 388                 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
 389                 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
 390                 if (service_number == -1)
 391                         continue;
 392                 ePtr<eDVBService> s = new eDVBService;
 393                 eServiceReferenceDVB ref =
 394                                                 eServiceReferenceDVB(
 395                                                 eDVBNamespace(dvb_namespace),
 396                                                 eTransportStreamID(transport_stream_id),
 397                                                 eOriginalNetworkID(original_network_id),
 398                                                 eServiceID(service_id),
 399                                                 service_type);
 400                 count++;
 401                 fgets(line, 256, f);
 402                 if (strlen(line))
 403                         line[strlen(line)-1]=0;
 404
 405                 s->m_service_name = line;
 406                 s->genSortName();
 407
 408                 fgets(line, 256, f);
 409                 if (strlen(line))
 410                         line[strlen(line)-1]=0;
 411                 std::string str=line;
 412
 413                 if (str[1]!=':')        // old ... (only service_provider)
 414                 {
 415                         s->m_provider_name=line;
 416                 } else
 417                         while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
 418                         {
 419                                 unsigned int c=str.find(',');
 420                                 char p=str[0];
 421                                 std::string v;
 422                                 if (c == std::string::npos)
 423                                 {
 424                                         v=str.substr(2);
 425                                         str="";
 426                                 } else
 427                                 {
 428                                         v=str.substr(2, c-2);
 429                                         str=str.substr(c+1);
 430                                 }
 431 //                              eDebug("%c ... %s", p, v.c_str());
 432                                 if (p == 'p')
 433                                         s->m_provider_name=v;
 434                                 else if (p == 'f')
 435                                 {
 436                                         sscanf(v.c_str(), "%x", &s->m_flags);
 437                                 } else if (p == 'c')
 438                                 {
 439                                         int cid, val;
 440                                         sscanf(v.c_str(), "%02d%x", &cid, &val);
 441                                         s->setCacheEntry((eDVBService::cacheID)cid,val);
 442                                 } else if (p == 'C')
 443                                 {
 444                                         int val;
 445                                         sscanf(v.c_str(), "%04x", &val);
 446                                         s->m_ca.push_front((uint16_t)val);
 447                                 }
 448                         }
 449                 addService(ref, s);
 450         }
 451
 452         eDebug("loaded %d services", count);
 453
 454         fclose(f);
 455 }
 456
 457 void eDVBDB::saveServicelist()
 458 {
 459         eDebug("---- saving lame channel db");
 460         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "w");
 461         int channels=0, services=0;
 462         if (!f)
 463                 eFatal("couldn't save lame channel db!");
 464         fprintf(f, "eDVB services /3/\n");
 465         fprintf(f, "transponders\n");
 466         for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
 467                         i != m_channels.end(); ++i)
 468         {
 469                 const eDVBChannelID &chid = i->first;
 470                 const channel &ch = i->second;
 471
 472                 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
 473                                 chid.transport_stream_id.get(), chid.original_network_id.get());
 474                 eDVBFrontendParametersSatellite sat;
 475                 eDVBFrontendParametersTerrestrial ter;
 476                 eDVBFrontendParametersCable cab;
 477                 if (!ch.m_frontendParameters->getDVBS(sat))
 478                 {
 479                         if (sat.system == eDVBFrontendParametersSatellite::System::DVB_S2)
 480                         {
 481                                 fprintf(f, "\ts %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 482                                         sat.frequency, sat.symbol_rate,
 483                                         sat.polarisation, sat.fec,
 484                                         sat.orbital_position > 1800 ? sat.orbital_position - 3600 : sat.orbital_position,
 485                                         sat.inversion,
 486                                         sat.system,
 487                                         sat.modulation,
 488                                         sat.roll_off);
 489                         }
 490                         else
 491                         {
 492                                 fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
 493                                         sat.frequency, sat.symbol_rate,
 494                                         sat.polarisation, sat.fec,
 495                                         sat.orbital_position > 1800 ? sat.orbital_position - 3600 : sat.orbital_position,
 496                                         sat.inversion);
 497                         }
 498                 }
 499                 if (!ch.m_frontendParameters->getDVBT(ter))
 500                 {
 501                         fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 502                                 ter.frequency, ter.bandwidth, ter.code_rate_HP,
 503                                 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
 504                                 ter.guard_interval, ter.hierarchy, ter.inversion);
 505                 }
 506                 if (!ch.m_frontendParameters->getDVBC(cab))
 507                 {
 508                         fprintf(f, "\tc %d:%d:%d:%d:%d\n",
 509                                 cab.frequency, cab.symbol_rate, cab.inversion, cab.modulation, cab.fec_inner);
 510                 }
 511                 fprintf(f, "/\n");
 512                 channels++;
 513         }
 514         fprintf(f, "end\nservices\n");
 515
 516         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
 517                 i != m_services.end(); ++i)
 518         {
 519                 const eServiceReferenceDVB &s = i->first;
 520                 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
 521                                 s.getServiceID().get(), s.getDVBNamespace().get(),
 522                                 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
 523                                 s.getServiceType(),
 524                                 0);
 525
 526                 fprintf(f, "%s\n", i->second->m_service_name.c_str());
 527
 528                 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
 529
 530                 // write cached pids
 531                 for (int x=0; x < eDVBService::cacheMax; ++x)
 532                 {
 533                         int entry = i->second->getCacheEntry((eDVBService::cacheID)x);
 534                         if (entry != -1)
 535                                 fprintf(f, ",c:%02d%04x", x, entry);
 536                 }
 537
 538                 // write cached ca pids
 539                 for (CAID_LIST::const_iterator ca(i->second->m_ca.begin());
 540                         ca != i->second->m_ca.end(); ++ca)
 541                         fprintf(f, ",C:%04x", *ca);
 542
 543                 if (i->second->m_flags)
 544                         fprintf(f, ",f:%x", i->second->m_flags);
 545
 546                 fprintf(f, "\n");
 547                 services++;
 548         }
 549         fprintf(f, "end\nHave a lot of bugs!\n");
 550         eDebug("saved %d channels and %d services!", channels, services);
 551         fclose(f);
 552 }
 553
 554 void eDVBDB::loadBouquet(const char *path)
 555 {
 556         std::string bouquet_name = path;
 557         if (!bouquet_name.length())
 558         {
 559                 eDebug("Bouquet load failed.. no path given..");
 560                 return;
 561         }
 562         unsigned int pos = bouquet_name.rfind('/');
 563         if ( pos != std::string::npos )
 564                 bouquet_name.erase(0, pos+1);
 565         if (bouquet_name.empty())
 566         {
 567                 eDebug("Bouquet load failed.. no filename given..");
 568                 return;
 569         }
 570         eBouquet &bouquet = m_bouquets[bouquet_name];
 571         bouquet.m_filename = bouquet_name;
 572         std::list<eServiceReference> &list = bouquet.m_services;
 573         list.clear();
 574
 575         std::string p = CONFIGDIR"/enigma2/";
 576         p+=path;
 577         eDebug("loading bouquet... %s", p.c_str());
 578         FILE *fp=fopen(p.c_str(), "rt");
 579         int entries=0;
 580         if (!fp)
 581         {
 582                 struct stat s;
 583                 if ( !stat(path, &s) )
 584                 {
 585                         rename(path, p.c_str() );
 586                         loadBouquet(path);
 587                         return;
 588                 }
 589                 eDebug("failed to open.");
 590                 if ( strstr(path, "bouquets.tv") )
 591                 {
 592                         eDebug("recreate bouquets.tv");
 593                         bouquet.m_bouquet_name="Bouquets (TV)";
 594                         bouquet.flushChanges();
 595                 }
 596                 else if ( strstr(path, "bouquets.radio") )
 597                 {
 598                         eDebug("recreate bouquets.radio");
 599                         bouquet.m_bouquet_name="Bouquets (Radio)";
 600                         bouquet.flushChanges();
 601                 }
 602                 return;
 603         }
 604         char line[256];
 605         bool read_descr=false;
 606         eServiceReference *e = NULL;
 607         while (1)
 608         {
 609                 if (!fgets(line, 256, fp))
 610                         break;
 611                 line[strlen(line)-1]=0;
 612                 if (strlen(line) && line[strlen(line)-1]=='\r')
 613                         line[strlen(line)-1]=0;
 614                 if (!line[0])
 615                         break;
 616                 if (line[0]=='#')
 617                 {
 618                         if (!strncmp(line, "#SERVICE", 8))
 619                         {
 620                                 int offs = line[8] == ':' ? 10 : 9;
 621                                 eServiceReference tmp(line+offs);
 622                                 if (tmp.type != eServiceReference::idDVB)
 623                                 {
 624                                         eDebug("only DVB Bouquets supported");
 625                                         continue;
 626                                 }
 627                                 if ( tmp.flags&eServiceReference::canDescent )
 628                                 {
 629                                         unsigned int pos = tmp.path.rfind('/');
 630                                         char buf[256];
 631                                         std::string path = tmp.path;
 632                                         if ( pos != std::string::npos )
 633                                                 path.erase(0, pos+1);
 634                                         if (path.empty())
 635                                         {
 636                                                 eDebug("Bouquet load failed.. no filename given..");
 637                                                 continue;
 638                                         }
 639                                         pos = path.find("FROM BOUQUET ");
 640                                         if (pos != std::string::npos)
 641                                         {
 642                                                 char endchr = path[pos+13];
 643                                                 if (endchr != '"')
 644                                                 {
 645                                                         eDebug("ignore invalid bouquet '%s' (only \" are allowed)",
 646                                                                 tmp.toString().c_str());
 647                                                         continue;
 648                                                 }
 649                                                 char *beg = &path[pos+14];
 650                                                 char *end = strchr(beg, endchr);
 651                                                 path.assign(beg, end - beg);
 652                                         }
 653                                         else
 654                                         {
 655                                                 snprintf(buf, 256, "FROM BOUQUET \"%s\" ORDER BY bouquet", path.c_str());
 656                                                 tmp.path = buf;
 657                                         }
 658                                         loadBouquet(path.c_str());
 659                                 }
 660                                 list.push_back(tmp);
 661                                 e = &list.back();
 662                                 read_descr=true;
 663                                 ++entries;
 664                         }
 665                         else if (read_descr && !strncmp(line, "#DESCRIPTION", 12))
 666                         {
 667                                 int offs = line[12] == ':' ? 14 : 13;
 668                                 e->name = line+offs;
 669                                 read_descr=false;
 670                         }
 671                         else if (!strncmp(line, "#NAME ", 6))
 672                                 bouquet.m_bouquet_name=line+6;
 673                         continue;
 674                 }
 675         }
 676         fclose(fp);
 677         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 678 }
 679
 680 void eDVBDB::reloadBouquets()
 681 {
 682         m_bouquets.clear();
 683         loadBouquet("bouquets.tv");
 684         loadBouquet("bouquets.radio");
 685 // create default bouquets when missing
 686         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 687         {
 688                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 689                 b.m_filename = "userbouquet.favourites.tv";
 690                 b.m_bouquet_name = "Favourites (TV)";
 691                 b.flushChanges();
 692                 eServiceReference ref;
 693                 memset(ref.data, 0, sizeof(ref.data));
 694                 ref.type=1;
 695                 ref.flags=7;
 696                 ref.data[0]=1;
 697                 ref.path="FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 698                 eBouquet &parent = m_bouquets["bouquets.tv"];
 699                 parent.m_services.push_back(ref);
 700                 parent.flushChanges();
 701         }
 702         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 703         {
 704                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 705                 b.m_filename = "userbouquet.favourites.radio";
 706                 b.m_bouquet_name = "Favourites (Radio)";
 707                 b.flushChanges();
 708                 eServiceReference ref;
 709                 memset(ref.data, 0, sizeof(ref.data));
 710                 ref.type=1;
 711                 ref.flags=7;
 712                 ref.data[0]=2;
 713                 ref.path="FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 714                 eBouquet &parent = m_bouquets["bouquets.radio"];
 715                 parent.m_services.push_back(ref);
 716                 parent.flushChanges();
 717         }
 718 }
 719
 720 eDVBDB *eDVBDB::instance;
 721
 722 eDVBDB::eDVBDB()
 723 {
 724         instance = this;
 725         reloadServicelist();
 726 }
 727
 728 eDVBDB::~eDVBDB()
 729 {
 730         instance=NULL;
 731 }
 732
 733 RESULT eDVBDB::removeService(const eServiceReference &ref)
 734 {
 735         if (ref.type == eServiceReference::idDVB)
 736         {
 737                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 738                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 739                 if (it != m_services.end())
 740                 {
 741                         m_services.erase(it);
 742                         return 0;
 743                 }
 744         }
 745         return -1;
 746 }
 747
 748 RESULT eDVBDB::removeServices(int dvb_namespace, int tsid, int onid, unsigned int orb_pos)
 749 {
 750         return removeServices(eDVBChannelID(eDVBNamespace(dvb_namespace), eTransportStreamID(tsid), eOriginalNetworkID(onid)), orb_pos);
 751 }
 752
 753 RESULT eDVBDB::removeServices(eDVBChannelID chid, unsigned int orbpos)
 754 {
 755         RESULT ret=-1;
 756         eDVBNamespace eNs;
 757         eTransportStreamID eTsid;
 758         eOriginalNetworkID eOnid;
 759         std::map<eDVBChannelID, channel>::iterator it(m_channels.begin());
 760         std::set<eDVBChannelID> removed_chids;
 761         while (it != m_channels.end())
 762         {
 763                 const eDVBChannelID &ch = it->first;
 764                 bool remove=true;
 765                 int system;
 766                 it->second.m_frontendParameters->getSystem(system);
 767                 if ( system == iDVBFrontend::feSatellite )
 768                 {
 769                         eDVBFrontendParametersSatellite sat;
 770                         it->second.m_frontendParameters->getDVBS(sat);
 771                         if ((unsigned int)sat.orbital_position != orbpos)
 772                                 remove=false;
 773                 }
 774                 if ( remove && chid.dvbnamespace != eNs && chid.dvbnamespace != ch.dvbnamespace )
 775                         remove=false;
 776                 if ( remove && chid.original_network_id != eOnid && chid.original_network_id != ch.original_network_id )
 777                         remove=false;
 778                 if ( remove && chid.transport_stream_id != eTsid && chid.transport_stream_id != ch.transport_stream_id )
 779                         remove=false;
 780                 if ( remove )
 781                 {
 782                         eDebug("remove %08x %04x %04x",
 783                                 ch.dvbnamespace.get(),
 784                                 ch.original_network_id.get(),
 785                                 ch.transport_stream_id.get());
 786                         removed_chids.insert(it->first);
 787                         m_channels.erase(it++);
 788                 }
 789                 else
 790                         ++it;
 791         }
 792         if (!removed_chids.empty())
 793         {
 794                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator service(m_services.begin());
 795                 while(service != m_services.end())
 796                 {
 797                         eDVBChannelID chid;
 798                         service->first.getChannelID(chid);
 799                         std::set<eDVBChannelID>::iterator it(removed_chids.find(chid));
 800                         if (it != removed_chids.end())
 801                                 m_services.erase(service++);
 802                         else
 803                                 ++service;
 804                         ret=0;
 805                 }
 806         }
 807         return ret;
 808 }
 809
 810 RESULT eDVBDB::addFlag(const eServiceReference &ref, unsigned int flagmask)
 811 {
 812         if (ref.type == eServiceReference::idDVB)
 813         {
 814                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 815                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 816                 if (it != m_services.end())
 817                         it->second->m_flags |= ~flagmask;
 818                 return 0;
 819         }
 820         return -1;
 821 }
 822
 823 RESULT eDVBDB::removeFlag(const eServiceReference &ref, unsigned int flagmask)
 824 {
 825         if (ref.type == eServiceReference::idDVB)
 826         {
 827                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 828                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 829                 if (it != m_services.end())
 830                         it->second->m_flags &= ~flagmask;
 831                 return 0;
 832         }
 833         return -1;
 834 }
 835
 836 RESULT eDVBDB::removeFlags(unsigned int flagmask, int dvb_namespace, int tsid, int onid, unsigned int orb_pos)
 837 {
 838         return removeFlags(flagmask, eDVBChannelID(eDVBNamespace(dvb_namespace), eTransportStreamID(tsid), eOriginalNetworkID(onid)), orb_pos);
 839 }
 840
 841 RESULT eDVBDB::removeFlags(unsigned int flagmask, eDVBChannelID chid, unsigned int orbpos)
 842 {
 843         eDVBNamespace eNs;
 844         eTransportStreamID eTsid;
 845         eOriginalNetworkID eOnid;
 846         std::map<eDVBChannelID, channel>::iterator it(m_channels.begin());
 847         std::set<eDVBChannelID> removed_chids;
 848         while (it != m_channels.end())
 849         {
 850                 const eDVBChannelID &ch = it->first;
 851                 bool remove=true;
 852                 int system;
 853                 it->second.m_frontendParameters->getSystem(system);
 854                 if ( orbpos != 0xFFFFFFFF && system == iDVBFrontend::feSatellite )
 855                 {
 856                         eDVBFrontendParametersSatellite sat;
 857                         it->second.m_frontendParameters->getDVBS(sat);
 858                         if ((unsigned int)sat.orbital_position != orbpos)
 859                                 remove=false;
 860                 }
 861                 if ( remove && chid.dvbnamespace != eNs && chid.dvbnamespace != ch.dvbnamespace )
 862                         remove=false;
 863                 if ( remove && chid.original_network_id != eOnid && chid.original_network_id != ch.original_network_id )
 864                         remove=false;
 865                 if ( remove && chid.transport_stream_id != eTsid && chid.transport_stream_id != ch.transport_stream_id )
 866                         remove=false;
 867                 if ( remove )
 868                         removed_chids.insert(it->first);
 869                 ++it;
 870         }
 871         if (!removed_chids.empty())
 872         {
 873                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator service(m_services.begin());
 874                 while(service != m_services.end())
 875                 {
 876                         eDVBChannelID chid;
 877                         service->first.getChannelID(chid);
 878                         std::set<eDVBChannelID>::iterator it(removed_chids.find(chid));
 879                         if (it != removed_chids.end())
 880                                 service->second->m_flags &= ~flagmask;
 881                         ++service;
 882                 }
 883         }
 884         return 0;
 885 }
 886
 887 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 888 {
 889         channel ch;
 890         assert(feparm);
 891         ch.m_frontendParameters = feparm;
 892         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 893         return 0;
 894 }
 895
 896 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 897 {
 898         m_channels.erase(id);
 899         return 0;
 900 }
 901
 902 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 903 {
 904         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 905         if (i == m_channels.end())
 906         {
 907                 parm = 0;
 908                 return -ENOENT;
 909         }
 910         parm = i->second.m_frontendParameters;
 911         return 0;
 912 }
 913
 914 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 915 {
 916         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(serviceref));
 917         if (it == m_services.end())
 918                 m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 919         return 0;
 920 }
 921
 922 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 923 {
 924         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 925         i = m_services.find(reference);
 926         if (i == m_services.end())
 927         {
 928                 service = 0;
 929                 return -ENOENT;
 930         }
 931         service = i->second;
 932         return 0;
 933 }
 934
 935 RESULT eDVBDB::flush()
 936 {
 937         saveServicelist();
 938         return 0;
 939 }
 940
 941 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 942 {
 943         std::string str = ref.path;
 944         if (str.empty())
 945         {
 946                 eDebug("getBouquet failed.. no path given!");
 947                 return -1;
 948         }
 949         unsigned int pos = str.find("FROM BOUQUET \"");
 950         if ( pos != std::string::npos )
 951         {
 952                 str.erase(0, pos+14);
 953                 pos = str.find('"');
 954                 if ( pos != std::string::npos )
 955                         str.erase(pos);
 956                 else
 957                         str.clear();
 958         }
 959         if (str.empty())
 960         {
 961                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 962                 return -1;
 963         }
 964         std::map<std::string, eBouquet>::iterator i =
 965                 m_bouquets.find(str);
 966         if (i == m_bouquets.end())
 967         {
 968                 bouquet = 0;
 969                 return -ENOENT;
 970         }
 971         bouquet = &i->second;
 972         return 0;
 973 }
 974
 975 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 976 {
 977         if ( source.path.find("FROM") != std::string::npos )
 978         {
 979                 if ( source.path.find("BOUQUET") != std::string::npos )
 980                         query = new eDVBDBBouquetQuery(this, source, q);
 981                 else if ( source.path.find("SATELLITES") != std::string::npos )
 982                         query = new eDVBDBSatellitesQuery(this, source, q);
 983                 else if ( source.path.find("PROVIDERS") != std::string::npos )
 984                         query = new eDVBDBProvidersQuery(this, source, q);
 985                 else
 986                         eFatal("invalid query %s", source.toString().c_str());
 987         }
 988         else
 989                 query = new eDVBDBQuery(this, source, q);
 990         return 0;
 991 }
 992
 993 eServiceReference eDVBDB::searchReference(int tsid, int onid, int sid)
 994 {
 995         eServiceID Sid(sid);
 996         eTransportStreamID Tsid(tsid);
 997         eOriginalNetworkID Onid(onid);
 998         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator sit(m_services.begin());
 999                 sit != m_services.end(); ++sit)
1000         {
1001                 if (sit->first.getTransportStreamID() == Tsid &&
1002                         sit->first.getOriginalNetworkID() == Onid &&
1003                         sit->first.getServiceID() == Sid)
1004                         return sit->first;
1005         }
1006         return eServiceReference();
1007 }
1008
1009 DEFINE_REF(eDVBDBQueryBase);
1010
1011 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1012         :m_db(db), m_query(query), m_source(source)
1013 {
1014 }
1015
1016 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
1017 {
1018         ePtr<eDVBService> a_service, b_service;
1019         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
1020
1021         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
1022         {
1023                 if (a.name.empty() && m_db->getService(a, a_service))
1024                         return 1;
1025                 if (b.name.empty() && m_db->getService(b, b_service))
1026                         return 1;
1027         }
1028
1029         switch (sortmode)
1030         {
1031         case eDVBChannelQuery::tName:
1032                 if (a_service)
1033                 {
1034                         if (b_service)
1035                                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
1036                         else
1037                         {
1038                                 std::string str = b.name;
1039                                 makeUpper(str);
1040                                 return a_service->m_service_name_sort < str;
1041                         }
1042                 }
1043                 else if (b_service)
1044                 {
1045                         std::string str = a.name;
1046                         makeUpper(str);
1047                         return str < b_service->m_service_name_sort;
1048                 }
1049                 else
1050                 {
1051                         std::string aa = a.name, bb = b.name;
1052                         makeUpper(aa);
1053                         makeUpper(bb);
1054                         return aa < bb;
1055                 }
1056         case eDVBChannelQuery::tProvider:
1057                 return a_service->m_provider_name < b_service->m_provider_name;
1058         case eDVBChannelQuery::tType:
1059                 return a.getServiceType() < b.getServiceType();
1060         case eDVBChannelQuery::tBouquet:
1061                 return 0;
1062         case eDVBChannelQuery::tSatellitePosition:
1063                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
1064         default:
1065                 return 1;
1066         }
1067         return 0;
1068 }
1069
1070 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1071         :eDVBDBQueryBase(db, source, query)
1072 {
1073         m_cursor = m_db->m_services.begin();
1074 }
1075
1076 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
1077 {
1078         while (m_cursor != m_db->m_services.end())
1079         {
1080                 ref = m_cursor->first;
1081
1082                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
1083
1084                 ++m_cursor;
1085
1086                 if (res)
1087                         return 0;
1088         }
1089
1090         ref.type = eServiceReference::idInvalid;
1091
1092         return 1;
1093 }
1094
1095 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1096         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
1097 {
1098 }
1099
1100 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
1101 {
1102         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
1103         std::list<eServiceReference> &list = bouquet.m_services;
1104         while (m_cursor != list.end())
1105         {
1106                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
1107
1108                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
1109                         m_db->m_services.find(ref);
1110
1111                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
1112
1113                 ++m_cursor;
1114
1115                 if (res)
1116                         return 0;
1117         }
1118
1119         ref.type = eServiceReference::idInvalid;
1120
1121         return 1;
1122 }
1123
1124 eDVBDBListQuery::eDVBDBListQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1125         :eDVBDBQueryBase(db, source, query), m_cursor(m_list.end())
1126 {
1127 }
1128
1129 RESULT eDVBDBListQuery::getNextResult(eServiceReferenceDVB &ref)
1130 {
1131         if (m_cursor != m_list.end())
1132         {
1133                 ref = *m_cursor++;
1134                 return 0;
1135         }
1136         ref.type = eServiceReference::idInvalid;
1137         return 1;
1138 }
1139
1140 int eDVBDBListQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
1141 {
1142         if ( m_query->m_sort == eDVBChannelQuery::tSatellitePosition )
1143         {
1144                 int x = (a.getDVBNamespace().get() >> 16);
1145                 int y = (b.getDVBNamespace().get() >> 16);
1146                 if ( x > 1800 )
1147                         x -= 3600;
1148                 if ( y > 1800 )
1149                         y -= 3600;
1150                 return x < y;
1151         }
1152         std::string aa = a.name, bb = b.name;
1153         makeUpper(aa);
1154         makeUpper(bb);
1155         return aa < bb;
1156 }
1157
1158 eDVBDBSatellitesQuery::eDVBDBSatellitesQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1159         :eDVBDBListQuery(db, source, query)
1160 {
1161         std::set<unsigned int> found;
1162         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
1163                 it != m_db->m_services.end(); ++it)
1164         {
1165                 int res = it->second->checkFilter(it->first, *query);
1166                 if (res)
1167                 {
1168                         unsigned int dvbnamespace = it->first.getDVBNamespace().get()&0xFFFF0000;
1169                         if (found.find(dvbnamespace) == found.end())
1170                         {
1171                                 found.insert(dvbnamespace);
1172                                 eServiceReferenceDVB ref;
1173                                 ref.setDVBNamespace(dvbnamespace);
1174                                 ref.flags=eServiceReference::flagDirectory;
1175                                 char buf[128];
1176                                 snprintf(buf, 128, "(satellitePosition == %d) && ", dvbnamespace>>16);
1177
1178                                 ref.path=buf+source.path;
1179                                 unsigned int pos=ref.path.find("FROM");
1180                                 ref.path.erase(pos);
1181                                 ref.path+="ORDER BY name";
1182 //                              eDebug("ref.path now %s", ref.path.c_str());
1183                                 m_list.push_back(ref);
1184
1185                                 ref.path=buf+source.path;
1186                                 pos=ref.path.find("FROM");
1187                                 ref.path.erase(pos+5);
1188                                 ref.path+="PROVIDERS ORDER BY name";
1189 //                              eDebug("ref.path now %s", ref.path.c_str());
1190                                 m_list.push_back(ref);
1191
1192                                 snprintf(buf, 128, "(satellitePosition == %d) && (flags == %d) && ", dvbnamespace>>16, eDVBService::dxNewFound);
1193                                 ref.path=buf+source.path;
1194                                 pos=ref.path.find("FROM");
1195                                 ref.path.erase(pos);
1196                                 ref.path+="ORDER BY name";
1197 //                              eDebug("ref.path now %s", ref.path.c_str());
1198                                 m_list.push_back(ref);
1199                         }
1200                 }
1201         }
1202         m_cursor=m_list.begin();
1203 }
1204
1205 eDVBDBProvidersQuery::eDVBDBProvidersQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1206         :eDVBDBListQuery(db, source, query)
1207 {
1208         std::set<std::string> found;
1209         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
1210                 it != m_db->m_services.end(); ++it)
1211         {
1212                 int res = it->second->checkFilter(it->first, *query);
1213                 if (res)
1214                 {
1215                         const char *provider_name = it->second->m_provider_name.length() ?
1216                                 it->second->m_provider_name.c_str() :
1217                                 "Unknown";
1218                         if (found.find(std::string(provider_name)) == found.end())
1219                         {
1220                                 found.insert(std::string(provider_name));
1221                                 eServiceReferenceDVB ref;
1222                                 char buf[64];
1223                                 ref.name=provider_name;
1224                                 snprintf(buf, 64, "(provider == \"%s\") && ", provider_name);
1225                                 ref.path=buf+source.path;
1226                                 unsigned int pos = ref.path.find("FROM");
1227                                 ref.flags=eServiceReference::flagDirectory;
1228                                 ref.path.erase(pos);
1229                                 ref.path+="ORDER BY name";
1230 //                              eDebug("ref.path now %s", ref.path.c_str());
1231                                 m_list.push_back(ref);
1232                         }
1233                 }
1234         }
1235         m_cursor=m_list.begin();
1236 }
1237
1238 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
1239
1240 static int decodeType(const std::string &type)
1241 {
1242         if (type == "name")
1243                 return eDVBChannelQuery::tName;
1244         else if (type == "provider")
1245                 return eDVBChannelQuery::tProvider;
1246         else if (type == "type")
1247                 return eDVBChannelQuery::tType;
1248         else if (type == "bouquet")
1249                 return eDVBChannelQuery::tBouquet;
1250         else if (type == "satellitePosition")
1251                 return eDVBChannelQuery::tSatellitePosition;
1252         else if (type == "channelID")
1253                 return eDVBChannelQuery::tChannelID;
1254         else if (type == "flags")
1255                 return eDVBChannelQuery::tFlags;
1256         else
1257                 return -1;
1258 }
1259
1260         /* never, NEVER write a parser in C++! */
1261 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
1262 {
1263         std::list<std::string>::const_iterator end_of_exp;
1264
1265         if (begin == end)
1266                 return 0;
1267
1268         if (*begin == "(")
1269         {
1270                 end_of_exp = begin;
1271                 while (end_of_exp != end)
1272                         if (*end_of_exp == ")")
1273                                 break;
1274                         else
1275                                 ++end_of_exp;
1276
1277                 if (end_of_exp == end)
1278                 {
1279                         eDebug("expression parse: end of expression while searching for closing brace");
1280                         return -1;
1281                 }
1282
1283                 ++begin;
1284                 // begin..end_of_exp
1285                 int r = parseExpression(res, begin, end_of_exp);
1286                 if (r)
1287                         return r;
1288                 ++end_of_exp;
1289
1290                         /* we had only one sub expression */
1291                 if (end_of_exp == end)
1292                 {
1293 //                      eDebug("only one sub expression");
1294                         return 0;
1295                 }
1296
1297                         /* otherwise we have an operator here.. */
1298
1299                 ePtr<eDVBChannelQuery> r2 = res;
1300                 res = new eDVBChannelQuery();
1301                 res->m_sort = 0;
1302                 res->m_p1 = r2;
1303                 res->m_inverse = 0;
1304                 r2 = 0;
1305
1306                 if (*end_of_exp == "||")
1307                         res->m_type = eDVBChannelQuery::tOR;
1308                 else if (*end_of_exp == "&&")
1309                         res->m_type = eDVBChannelQuery::tAND;
1310                 else
1311                 {
1312                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
1313                         res = 0;
1314                         return 1;
1315                 }
1316
1317                 ++end_of_exp;
1318
1319                 return parseExpression(res->m_p2, end_of_exp, end);
1320         }
1321
1322         // "begin" <op> "end"
1323         std::string type, op, val;
1324
1325         res = new eDVBChannelQuery();
1326         res->m_sort = 0;
1327
1328         int cnt = 0;
1329         while (begin != end)
1330         {
1331                 switch (cnt)
1332                 {
1333                 case 0:
1334                         type = *begin;
1335                         break;
1336                 case 1:
1337                         op = *begin;
1338                         break;
1339                 case 2:
1340                         val = *begin;
1341                         break;
1342                 case 3:
1343                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
1344                         return 1;
1345                 }
1346                 ++begin;
1347                 ++cnt;
1348         }
1349
1350         if (cnt != 3)
1351         {
1352                 eDebug("malformed query: missing stuff");
1353                 res = 0;
1354                 return 1;
1355         }
1356
1357         res->m_type = decodeType(type);
1358
1359         if (res->m_type == -1)
1360         {
1361                 eDebug("malformed query: invalid type %s", type.c_str());
1362                 res = 0;
1363                 return 1;
1364         }
1365
1366         if (op == "==")
1367                 res->m_inverse = 0;
1368         else if (op == "!=")
1369                 res->m_inverse = 1;
1370         else
1371         {
1372                 eDebug("invalid operator %s", op.c_str());
1373                 res = 0;
1374                 return 1;
1375         }
1376
1377         res->m_string = val;
1378         res->m_int = atoi(val.c_str());
1379 //      res->m_channelid = eDVBChannelID(val);
1380
1381         return 0;
1382 }
1383
1384 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
1385 {
1386         std::list<std::string> tokens;
1387
1388         std::string current_token;
1389         std::string bouquet_name;
1390
1391 //      eDebug("splitting %s....", query.c_str());
1392         unsigned int i = 0;
1393         const char *splitchars="()";
1394         int quotemode = 0, lastsplit = 0, lastalnum = 0;
1395         while (i <= query.size())
1396         {
1397                 int c = (i < query.size()) ? query[i] : ' ';
1398                 ++i;
1399
1400                 int issplit = !!strchr(splitchars, c);
1401                 int isaln = isalnum(c);
1402                 int iswhite = c == ' ';
1403                 int isquot = c == '\"';
1404
1405                 if (quotemode)
1406                 {
1407                         iswhite = issplit = 0;
1408                         isaln = lastalnum;
1409                 }
1410
1411                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
1412                 {
1413                         if (current_token.size())
1414                                 tokens.push_back(current_token);
1415                         current_token.clear();
1416                 }
1417
1418                 if (!(iswhite || isquot))
1419                         current_token += c;
1420
1421                 if (isquot)
1422                         quotemode = !quotemode;
1423                 lastsplit = issplit;
1424                 lastalnum = isaln;
1425         }
1426
1427 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
1428 //      {
1429 //              printf("%s\n", a->c_str());
1430 //      }
1431
1432         int sort = eDVBChannelQuery::tName;
1433                 /* check for "ORDER BY ..." */
1434
1435         std::list<std::string>::iterator it = tokens.begin();
1436         while (it != tokens.end())
1437         {
1438                 if (*it == "ORDER")
1439                 {
1440                         tokens.erase(it++);
1441                         if (it != tokens.end() && *it == "BY")
1442                         {
1443                                 tokens.erase(it++);
1444                                 sort = decodeType(*it);
1445                                 tokens.erase(it++);
1446                         } else
1447                                 sort = -1;
1448                 }
1449                 else if (*it == "FROM")
1450                 {
1451                         tokens.erase(it++);
1452                         if (it != tokens.end() && *it == "BOUQUET")
1453                         {
1454                                 tokens.erase(it++);
1455                                 bouquet_name = *it;
1456                                 tokens.erase(it++);
1457                         }
1458                         else if (it != tokens.end() && *it == "SATELLITES")
1459                                 tokens.erase(it++);
1460                         else if (it != tokens.end() && *it == "PROVIDERS")
1461                                 tokens.erase(it++);
1462                         else
1463                         {
1464                                 eDebug("FROM unknown %s", (*it).c_str());
1465                                 tokens.erase(it++);
1466                         }
1467                 }
1468                 else
1469                         ++it;
1470         }
1471
1472         if (sort == -1)
1473         {
1474                 eWarning("ORDER BY .. string invalid.");
1475                 res = 0;
1476                 return -1;
1477         }
1478
1479 //      eDebug("sort by %d", sort);
1480
1481                 /* now we recursivly parse that. */
1482         int r = parseExpression(res, tokens.begin(), tokens.end());
1483
1484                 /* we have an empty (but valid!) expression */
1485         if (!r && !res)
1486         {
1487                 res = new eDVBChannelQuery();
1488                 res->m_inverse = 0;
1489                 res->m_type = eDVBChannelQuery::tAny;
1490         }
1491
1492         if (res)
1493         {
1494                 res->m_sort = sort;
1495                 res->m_bouquet_name = bouquet_name;
1496         }
1497
1498 //      eDebug("return: %d", r);
1499         return r;
1500 }
1501
1502 DEFINE_REF(eDVBChannelQuery);