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 ", 9) || !strncmp(line, "#SERVICE: ", 10))
 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 ", 13))
 666                         {
 667                                 e->name = line+13;
 668                                 read_descr=false;
 669                         }
 670                         else if (!strncmp(line, "#NAME ", 6))
 671                                 bouquet.m_bouquet_name=line+6;
 672                         continue;
 673                 }
 674         }
 675         fclose(fp);
 676         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 677 }
 678
 679 void eDVBDB::reloadBouquets()
 680 {
 681         m_bouquets.clear();
 682         loadBouquet("bouquets.tv");
 683         loadBouquet("bouquets.radio");
 684 // create default bouquets when missing
 685         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 686         {
 687                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 688                 b.m_filename = "userbouquet.favourites.tv";
 689                 b.m_bouquet_name = "Favourites (TV)";
 690                 b.flushChanges();
 691                 eServiceReference ref;
 692                 memset(ref.data, 0, sizeof(ref.data));
 693                 ref.type=1;
 694                 ref.flags=7;
 695                 ref.data[0]=1;
 696                 ref.path="FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 697                 eBouquet &parent = m_bouquets["bouquets.tv"];
 698                 parent.m_services.push_back(ref);
 699                 parent.flushChanges();
 700         }
 701         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 702         {
 703                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 704                 b.m_filename = "userbouquet.favourites.radio";
 705                 b.m_bouquet_name = "Favourites (Radio)";
 706                 b.flushChanges();
 707                 eServiceReference ref;
 708                 memset(ref.data, 0, sizeof(ref.data));
 709                 ref.type=1;
 710                 ref.flags=7;
 711                 ref.data[0]=2;
 712                 ref.path="FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 713                 eBouquet &parent = m_bouquets["bouquets.radio"];
 714                 parent.m_services.push_back(ref);
 715                 parent.flushChanges();
 716         }
 717 }
 718
 719 eDVBDB *eDVBDB::instance;
 720
 721 eDVBDB::eDVBDB()
 722 {
 723         instance = this;
 724         reloadServicelist();
 725 }
 726
 727 eDVBDB::~eDVBDB()
 728 {
 729         instance=NULL;
 730 }
 731
 732 RESULT eDVBDB::removeService(const eServiceReference &ref)
 733 {
 734         if (ref.type == eServiceReference::idDVB)
 735         {
 736                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 737                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 738                 if (it != m_services.end())
 739                 {
 740                         m_services.erase(it);
 741                         return 0;
 742                 }
 743         }
 744         return -1;
 745 }
 746
 747 RESULT eDVBDB::removeServices(int dvb_namespace, int tsid, int onid, unsigned int orb_pos)
 748 {
 749         return removeServices(eDVBChannelID(eDVBNamespace(dvb_namespace), eTransportStreamID(tsid), eOriginalNetworkID(onid)), orb_pos);
 750 }
 751
 752 RESULT eDVBDB::removeServices(eDVBChannelID chid, unsigned int orbpos)
 753 {
 754         RESULT ret=-1;
 755         eDVBNamespace eNs;
 756         eTransportStreamID eTsid;
 757         eOriginalNetworkID eOnid;
 758         std::map<eDVBChannelID, channel>::iterator it(m_channels.begin());
 759         std::set<eDVBChannelID> removed_chids;
 760         while (it != m_channels.end())
 761         {
 762                 const eDVBChannelID &ch = it->first;
 763                 bool remove=true;
 764                 int system;
 765                 it->second.m_frontendParameters->getSystem(system);
 766                 if ( system == iDVBFrontend::feSatellite )
 767                 {
 768                         eDVBFrontendParametersSatellite sat;
 769                         it->second.m_frontendParameters->getDVBS(sat);
 770                         if ((unsigned int)sat.orbital_position != orbpos)
 771                                 remove=false;
 772                 }
 773                 if ( remove && chid.dvbnamespace != eNs && chid.dvbnamespace != ch.dvbnamespace )
 774                         remove=false;
 775                 if ( remove && chid.original_network_id != eOnid && chid.original_network_id != ch.original_network_id )
 776                         remove=false;
 777                 if ( remove && chid.transport_stream_id != eTsid && chid.transport_stream_id != ch.transport_stream_id )
 778                         remove=false;
 779                 if ( remove )
 780                 {
 781                         eDebug("remove %08x %04x %04x",
 782                                 ch.dvbnamespace.get(),
 783                                 ch.original_network_id.get(),
 784                                 ch.transport_stream_id.get());
 785                         removed_chids.insert(it->first);
 786                         m_channels.erase(it++);
 787                 }
 788                 else
 789                         ++it;
 790         }
 791         if (!removed_chids.empty())
 792         {
 793                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator service(m_services.begin());
 794                 while(service != m_services.end())
 795                 {
 796                         eDVBChannelID chid;
 797                         service->first.getChannelID(chid);
 798                         std::set<eDVBChannelID>::iterator it(removed_chids.find(chid));
 799                         if (it != removed_chids.end())
 800                                 m_services.erase(service++);
 801                         else
 802                                 ++service;
 803                         ret=0;
 804                 }
 805         }
 806         return ret;
 807 }
 808
 809 RESULT eDVBDB::addFlag(const eServiceReference &ref, unsigned int flagmask)
 810 {
 811         if (ref.type == eServiceReference::idDVB)
 812         {
 813                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 814                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 815                 if (it != m_services.end())
 816                         it->second->m_flags |= ~flagmask;
 817                 return 0;
 818         }
 819         return -1;
 820 }
 821
 822 RESULT eDVBDB::removeFlag(const eServiceReference &ref, unsigned int flagmask)
 823 {
 824         if (ref.type == eServiceReference::idDVB)
 825         {
 826                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 827                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 828                 if (it != m_services.end())
 829                         it->second->m_flags &= ~flagmask;
 830                 return 0;
 831         }
 832         return -1;
 833 }
 834
 835 RESULT eDVBDB::removeFlags(unsigned int flagmask, int dvb_namespace, int tsid, int onid, unsigned int orb_pos)
 836 {
 837         return removeFlags(flagmask, eDVBChannelID(eDVBNamespace(dvb_namespace), eTransportStreamID(tsid), eOriginalNetworkID(onid)), orb_pos);
 838 }
 839
 840 RESULT eDVBDB::removeFlags(unsigned int flagmask, eDVBChannelID chid, unsigned int orbpos)
 841 {
 842         eDVBNamespace eNs;
 843         eTransportStreamID eTsid;
 844         eOriginalNetworkID eOnid;
 845         std::map<eDVBChannelID, channel>::iterator it(m_channels.begin());
 846         std::set<eDVBChannelID> removed_chids;
 847         while (it != m_channels.end())
 848         {
 849                 const eDVBChannelID &ch = it->first;
 850                 bool remove=true;
 851                 int system;
 852                 it->second.m_frontendParameters->getSystem(system);
 853                 if ( orbpos != 0xFFFFFFFF && system == iDVBFrontend::feSatellite )
 854                 {
 855                         eDVBFrontendParametersSatellite sat;
 856                         it->second.m_frontendParameters->getDVBS(sat);
 857                         if ((unsigned int)sat.orbital_position != orbpos)
 858                                 remove=false;
 859                 }
 860                 if ( remove && chid.dvbnamespace != eNs && chid.dvbnamespace != ch.dvbnamespace )
 861                         remove=false;
 862                 if ( remove && chid.original_network_id != eOnid && chid.original_network_id != ch.original_network_id )
 863                         remove=false;
 864                 if ( remove && chid.transport_stream_id != eTsid && chid.transport_stream_id != ch.transport_stream_id )
 865                         remove=false;
 866                 if ( remove )
 867                         removed_chids.insert(it->first);
 868                 ++it;
 869         }
 870         if (!removed_chids.empty())
 871         {
 872                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator service(m_services.begin());
 873                 while(service != m_services.end())
 874                 {
 875                         eDVBChannelID chid;
 876                         service->first.getChannelID(chid);
 877                         std::set<eDVBChannelID>::iterator it(removed_chids.find(chid));
 878                         if (it != removed_chids.end())
 879                                 service->second->m_flags &= ~flagmask;
 880                         ++service;
 881                 }
 882         }
 883         return 0;
 884 }
 885
 886 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 887 {
 888         channel ch;
 889         assert(feparm);
 890         ch.m_frontendParameters = feparm;
 891         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 892         return 0;
 893 }
 894
 895 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 896 {
 897         m_channels.erase(id);
 898         return 0;
 899 }
 900
 901 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 902 {
 903         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 904         if (i == m_channels.end())
 905         {
 906                 parm = 0;
 907                 return -ENOENT;
 908         }
 909         parm = i->second.m_frontendParameters;
 910         return 0;
 911 }
 912
 913 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 914 {
 915         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(serviceref));
 916         if (it == m_services.end())
 917                 m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 918         return 0;
 919 }
 920
 921 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 922 {
 923         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 924         i = m_services.find(reference);
 925         if (i == m_services.end())
 926         {
 927                 service = 0;
 928                 return -ENOENT;
 929         }
 930         service = i->second;
 931         return 0;
 932 }
 933
 934 RESULT eDVBDB::flush()
 935 {
 936         saveServicelist();
 937         return 0;
 938 }
 939
 940 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 941 {
 942         std::string str = ref.path;
 943         if (str.empty())
 944         {
 945                 eDebug("getBouquet failed.. no path given!");
 946                 return -1;
 947         }
 948         unsigned int pos = str.find("FROM BOUQUET \"");
 949         if ( pos != std::string::npos )
 950         {
 951                 str.erase(0, pos+14);
 952                 pos = str.find('"');
 953                 if ( pos != std::string::npos )
 954                         str.erase(pos);
 955                 else
 956                         str.clear();
 957         }
 958         if (str.empty())
 959         {
 960                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 961                 return -1;
 962         }
 963         std::map<std::string, eBouquet>::iterator i =
 964                 m_bouquets.find(str);
 965         if (i == m_bouquets.end())
 966         {
 967                 bouquet = 0;
 968                 return -ENOENT;
 969         }
 970         bouquet = &i->second;
 971         return 0;
 972 }
 973
 974 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 975 {
 976         if ( source.path.find("FROM") != std::string::npos )
 977         {
 978                 if ( source.path.find("BOUQUET") != std::string::npos )
 979                         query = new eDVBDBBouquetQuery(this, source, q);
 980                 else if ( source.path.find("SATELLITES") != std::string::npos )
 981                         query = new eDVBDBSatellitesQuery(this, source, q);
 982                 else if ( source.path.find("PROVIDERS") != std::string::npos )
 983                         query = new eDVBDBProvidersQuery(this, source, q);
 984                 else
 985                         eFatal("invalid query %s", source.toString().c_str());
 986         }
 987         else
 988                 query = new eDVBDBQuery(this, source, q);
 989         return 0;
 990 }
 991
 992 eServiceReference eDVBDB::searchReference(int tsid, int onid, int sid)
 993 {
 994         eServiceID Sid(sid);
 995         eTransportStreamID Tsid(tsid);
 996         eOriginalNetworkID Onid(onid);
 997         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator sit(m_services.begin());
 998                 sit != m_services.end(); ++sit)
 999         {
1000                 if (sit->first.getTransportStreamID() == Tsid &&
1001                         sit->first.getOriginalNetworkID() == Onid &&
1002                         sit->first.getServiceID() == Sid)
1003                         return sit->first;
1004         }
1005         return eServiceReference();
1006 }
1007
1008 DEFINE_REF(eDVBDBQueryBase);
1009
1010 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1011         :m_db(db), m_query(query), m_source(source)
1012 {
1013 }
1014
1015 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
1016 {
1017         ePtr<eDVBService> a_service, b_service;
1018         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
1019
1020         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
1021         {
1022                 if (a.name.empty() && m_db->getService(a, a_service))
1023                         return 1;
1024                 if (b.name.empty() && m_db->getService(b, b_service))
1025                         return 1;
1026         }
1027
1028         switch (sortmode)
1029         {
1030         case eDVBChannelQuery::tName:
1031                 if (a_service)
1032                 {
1033                         if (b_service)
1034                                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
1035                         else
1036                         {
1037                                 std::string str = b.name;
1038                                 makeUpper(str);
1039                                 return a_service->m_service_name_sort < str;
1040                         }
1041                 }
1042                 else if (b_service)
1043                 {
1044                         std::string str = a.name;
1045                         makeUpper(str);
1046                         return str < b_service->m_service_name_sort;
1047                 }
1048                 else
1049                 {
1050                         std::string aa = a.name, bb = b.name;
1051                         makeUpper(aa);
1052                         makeUpper(bb);
1053                         return aa < bb;
1054                 }
1055         case eDVBChannelQuery::tProvider:
1056                 return a_service->m_provider_name < b_service->m_provider_name;
1057         case eDVBChannelQuery::tType:
1058                 return a.getServiceType() < b.getServiceType();
1059         case eDVBChannelQuery::tBouquet:
1060                 return 0;
1061         case eDVBChannelQuery::tSatellitePosition:
1062                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
1063         default:
1064                 return 1;
1065         }
1066         return 0;
1067 }
1068
1069 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1070         :eDVBDBQueryBase(db, source, query)
1071 {
1072         m_cursor = m_db->m_services.begin();
1073 }
1074
1075 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
1076 {
1077         while (m_cursor != m_db->m_services.end())
1078         {
1079                 ref = m_cursor->first;
1080
1081                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
1082
1083                 ++m_cursor;
1084
1085                 if (res)
1086                         return 0;
1087         }
1088
1089         ref.type = eServiceReference::idInvalid;
1090
1091         return 1;
1092 }
1093
1094 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1095         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
1096 {
1097 }
1098
1099 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
1100 {
1101         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
1102         std::list<eServiceReference> &list = bouquet.m_services;
1103         while (m_cursor != list.end())
1104         {
1105                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
1106
1107                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
1108                         m_db->m_services.find(ref);
1109
1110                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
1111
1112                 ++m_cursor;
1113
1114                 if (res)
1115                         return 0;
1116         }
1117
1118         ref.type = eServiceReference::idInvalid;
1119
1120         return 1;
1121 }
1122
1123 eDVBDBListQuery::eDVBDBListQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1124         :eDVBDBQueryBase(db, source, query), m_cursor(m_list.end())
1125 {
1126 }
1127
1128 RESULT eDVBDBListQuery::getNextResult(eServiceReferenceDVB &ref)
1129 {
1130         if (m_cursor != m_list.end())
1131         {
1132                 ref = *m_cursor++;
1133                 return 0;
1134         }
1135         ref.type = eServiceReference::idInvalid;
1136         return 1;
1137 }
1138
1139 int eDVBDBListQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
1140 {
1141         if ( m_query->m_sort == eDVBChannelQuery::tSatellitePosition )
1142         {
1143                 int x = (a.getDVBNamespace().get() >> 16);
1144                 int y = (b.getDVBNamespace().get() >> 16);
1145                 if ( x > 1800 )
1146                         x -= 3600;
1147                 if ( y > 1800 )
1148                         y -= 3600;
1149                 return x < y;
1150         }
1151         std::string aa = a.name, bb = b.name;
1152         makeUpper(aa);
1153         makeUpper(bb);
1154         return aa < bb;
1155 }
1156
1157 eDVBDBSatellitesQuery::eDVBDBSatellitesQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1158         :eDVBDBListQuery(db, source, query)
1159 {
1160         std::set<unsigned int> found;
1161         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
1162                 it != m_db->m_services.end(); ++it)
1163         {
1164                 int res = it->second->checkFilter(it->first, *query);
1165                 if (res)
1166                 {
1167                         unsigned int dvbnamespace = it->first.getDVBNamespace().get()&0xFFFF0000;
1168                         if (found.find(dvbnamespace) == found.end())
1169                         {
1170                                 found.insert(dvbnamespace);
1171                                 eServiceReferenceDVB ref;
1172                                 ref.setDVBNamespace(dvbnamespace);
1173                                 ref.flags=eServiceReference::flagDirectory;
1174                                 char buf[128];
1175                                 snprintf(buf, 128, "(satellitePosition == %d) && ", dvbnamespace>>16);
1176
1177                                 ref.path=buf+source.path;
1178                                 unsigned int pos=ref.path.find("FROM");
1179                                 ref.path.erase(pos);
1180                                 ref.path+="ORDER BY name";
1181 //                              eDebug("ref.path now %s", ref.path.c_str());
1182                                 m_list.push_back(ref);
1183
1184                                 ref.path=buf+source.path;
1185                                 pos=ref.path.find("FROM");
1186                                 ref.path.erase(pos+5);
1187                                 ref.path+="PROVIDERS ORDER BY name";
1188 //                              eDebug("ref.path now %s", ref.path.c_str());
1189                                 m_list.push_back(ref);
1190
1191                                 snprintf(buf, 128, "(satellitePosition == %d) && (flags == %d) && ", dvbnamespace>>16, eDVBService::dxNewFound);
1192                                 ref.path=buf+source.path;
1193                                 pos=ref.path.find("FROM");
1194                                 ref.path.erase(pos);
1195                                 ref.path+="ORDER BY name";
1196 //                              eDebug("ref.path now %s", ref.path.c_str());
1197                                 m_list.push_back(ref);
1198                         }
1199                 }
1200         }
1201         m_cursor=m_list.begin();
1202 }
1203
1204 eDVBDBProvidersQuery::eDVBDBProvidersQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1205         :eDVBDBListQuery(db, source, query)
1206 {
1207         std::set<std::string> found;
1208         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
1209                 it != m_db->m_services.end(); ++it)
1210         {
1211                 int res = it->second->checkFilter(it->first, *query);
1212                 if (res)
1213                 {
1214                         const char *provider_name = it->second->m_provider_name.length() ?
1215                                 it->second->m_provider_name.c_str() :
1216                                 "Unknown";
1217                         if (found.find(std::string(provider_name)) == found.end())
1218                         {
1219                                 found.insert(std::string(provider_name));
1220                                 eServiceReferenceDVB ref;
1221                                 char buf[64];
1222                                 ref.name=provider_name;
1223                                 snprintf(buf, 64, "(provider == \"%s\") && ", provider_name);
1224                                 ref.path=buf+source.path;
1225                                 unsigned int pos = ref.path.find("FROM");
1226                                 ref.flags=eServiceReference::flagDirectory;
1227                                 ref.path.erase(pos);
1228                                 ref.path+="ORDER BY name";
1229 //                              eDebug("ref.path now %s", ref.path.c_str());
1230                                 m_list.push_back(ref);
1231                         }
1232                 }
1233         }
1234         m_cursor=m_list.begin();
1235 }
1236
1237 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
1238
1239 static int decodeType(const std::string &type)
1240 {
1241         if (type == "name")
1242                 return eDVBChannelQuery::tName;
1243         else if (type == "provider")
1244                 return eDVBChannelQuery::tProvider;
1245         else if (type == "type")
1246                 return eDVBChannelQuery::tType;
1247         else if (type == "bouquet")
1248                 return eDVBChannelQuery::tBouquet;
1249         else if (type == "satellitePosition")
1250                 return eDVBChannelQuery::tSatellitePosition;
1251         else if (type == "channelID")
1252                 return eDVBChannelQuery::tChannelID;
1253         else if (type == "flags")
1254                 return eDVBChannelQuery::tFlags;
1255         else
1256                 return -1;
1257 }
1258
1259         /* never, NEVER write a parser in C++! */
1260 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
1261 {
1262         std::list<std::string>::const_iterator end_of_exp;
1263
1264         if (begin == end)
1265                 return 0;
1266
1267         if (*begin == "(")
1268         {
1269                 end_of_exp = begin;
1270                 while (end_of_exp != end)
1271                         if (*end_of_exp == ")")
1272                                 break;
1273                         else
1274                                 ++end_of_exp;
1275
1276                 if (end_of_exp == end)
1277                 {
1278                         eDebug("expression parse: end of expression while searching for closing brace");
1279                         return -1;
1280                 }
1281
1282                 ++begin;
1283                 // begin..end_of_exp
1284                 int r = parseExpression(res, begin, end_of_exp);
1285                 if (r)
1286                         return r;
1287                 ++end_of_exp;
1288
1289                         /* we had only one sub expression */
1290                 if (end_of_exp == end)
1291                 {
1292 //                      eDebug("only one sub expression");
1293                         return 0;
1294                 }
1295
1296                         /* otherwise we have an operator here.. */
1297
1298                 ePtr<eDVBChannelQuery> r2 = res;
1299                 res = new eDVBChannelQuery();
1300                 res->m_sort = 0;
1301                 res->m_p1 = r2;
1302                 res->m_inverse = 0;
1303                 r2 = 0;
1304
1305                 if (*end_of_exp == "||")
1306                         res->m_type = eDVBChannelQuery::tOR;
1307                 else if (*end_of_exp == "&&")
1308                         res->m_type = eDVBChannelQuery::tAND;
1309                 else
1310                 {
1311                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
1312                         res = 0;
1313                         return 1;
1314                 }
1315
1316                 ++end_of_exp;
1317
1318                 return parseExpression(res->m_p2, end_of_exp, end);
1319         }
1320
1321         // "begin" <op> "end"
1322         std::string type, op, val;
1323
1324         res = new eDVBChannelQuery();
1325         res->m_sort = 0;
1326
1327         int cnt = 0;
1328         while (begin != end)
1329         {
1330                 switch (cnt)
1331                 {
1332                 case 0:
1333                         type = *begin;
1334                         break;
1335                 case 1:
1336                         op = *begin;
1337                         break;
1338                 case 2:
1339                         val = *begin;
1340                         break;
1341                 case 3:
1342                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
1343                         return 1;
1344                 }
1345                 ++begin;
1346                 ++cnt;
1347         }
1348
1349         if (cnt != 3)
1350         {
1351                 eDebug("malformed query: missing stuff");
1352                 res = 0;
1353                 return 1;
1354         }
1355
1356         res->m_type = decodeType(type);
1357
1358         if (res->m_type == -1)
1359         {
1360                 eDebug("malformed query: invalid type %s", type.c_str());
1361                 res = 0;
1362                 return 1;
1363         }
1364
1365         if (op == "==")
1366                 res->m_inverse = 0;
1367         else if (op == "!=")
1368                 res->m_inverse = 1;
1369         else
1370         {
1371                 eDebug("invalid operator %s", op.c_str());
1372                 res = 0;
1373                 return 1;
1374         }
1375
1376         res->m_string = val;
1377         res->m_int = atoi(val.c_str());
1378 //      res->m_channelid = eDVBChannelID(val);
1379
1380         return 0;
1381 }
1382
1383 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
1384 {
1385         std::list<std::string> tokens;
1386
1387         std::string current_token;
1388         std::string bouquet_name;
1389
1390 //      eDebug("splitting %s....", query.c_str());
1391         unsigned int i = 0;
1392         const char *splitchars="()";
1393         int quotemode = 0, lastsplit = 0, lastalnum = 0;
1394         while (i <= query.size())
1395         {
1396                 int c = (i < query.size()) ? query[i] : ' ';
1397                 ++i;
1398
1399                 int issplit = !!strchr(splitchars, c);
1400                 int isaln = isalnum(c);
1401                 int iswhite = c == ' ';
1402                 int isquot = c == '\"';
1403
1404                 if (quotemode)
1405                 {
1406                         iswhite = issplit = 0;
1407                         isaln = lastalnum;
1408                 }
1409
1410                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
1411                 {
1412                         if (current_token.size())
1413                                 tokens.push_back(current_token);
1414                         current_token.clear();
1415                 }
1416
1417                 if (!(iswhite || isquot))
1418                         current_token += c;
1419
1420                 if (isquot)
1421                         quotemode = !quotemode;
1422                 lastsplit = issplit;
1423                 lastalnum = isaln;
1424         }
1425
1426 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
1427 //      {
1428 //              printf("%s\n", a->c_str());
1429 //      }
1430
1431         int sort = eDVBChannelQuery::tName;
1432                 /* check for "ORDER BY ..." */
1433
1434         std::list<std::string>::iterator it = tokens.begin();
1435         while (it != tokens.end())
1436         {
1437                 if (*it == "ORDER")
1438                 {
1439                         tokens.erase(it++);
1440                         if (it != tokens.end() && *it == "BY")
1441                         {
1442                                 tokens.erase(it++);
1443                                 sort = decodeType(*it);
1444                                 tokens.erase(it++);
1445                         } else
1446                                 sort = -1;
1447                 }
1448                 else if (*it == "FROM")
1449                 {
1450                         tokens.erase(it++);
1451                         if (it != tokens.end() && *it == "BOUQUET")
1452                         {
1453                                 tokens.erase(it++);
1454                                 bouquet_name = *it;
1455                                 tokens.erase(it++);
1456                         }
1457                         else if (it != tokens.end() && *it == "SATELLITES")
1458                                 tokens.erase(it++);
1459                         else if (it != tokens.end() && *it == "PROVIDERS")
1460                                 tokens.erase(it++);
1461                         else
1462                         {
1463                                 eDebug("FROM unknown %s", (*it).c_str());
1464                                 tokens.erase(it++);
1465                         }
1466                 }
1467                 else
1468                         ++it;
1469         }
1470
1471         if (sort == -1)
1472         {
1473                 eWarning("ORDER BY .. string invalid.");
1474                 res = 0;
1475                 return -1;
1476         }
1477
1478 //      eDebug("sort by %d", sort);
1479
1480                 /* now we recursivly parse that. */
1481         int r = parseExpression(res, tokens.begin(), tokens.end());
1482
1483                 /* we have an empty (but valid!) expression */
1484         if (!r && !res)
1485         {
1486                 res = new eDVBChannelQuery();
1487                 res->m_inverse = 0;
1488                 res->m_type = eDVBChannelQuery::tAny;
1489         }
1490
1491         if (res)
1492         {
1493                 res->m_sort = sort;
1494                 res->m_bouquet_name = bouquet_name;
1495         }
1496
1497 //      eDebug("return: %d", r);
1498         return r;
1499 }
1500
1501 DEFINE_REF(eDVBChannelQuery);