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)
  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         m_services.push_back(ref);
  22         return 0;
  23 }
  24
  25 RESULT eBouquet::removeService(const eServiceReference &ref)
  26 {
  27         list::iterator it =
  28                 std::find(m_services.begin(), m_services.end(), ref);
  29         if ( it == m_services.end() )
  30                 return -1;
  31         m_services.erase(it);
  32         return 0;
  33 }
  34
  35 RESULT eBouquet::moveService(const eServiceReference &ref, unsigned int pos)
  36 {
  37         if ( pos < 0 || pos >= m_services.size() )
  38                 return -1;
  39         ++pos;
  40         list::iterator source=m_services.end();
  41         list::iterator dest=m_services.end();
  42         bool forward = false;
  43         for (list::iterator it(m_services.begin()); it != m_services.end(); ++it)
  44         {
  45                 if (dest == m_services.end() && !--pos)
  46                         dest = it;
  47                 if (*it == ref)
  48                 {
  49                         source = it;
  50                         forward = pos>0;
  51                 }
  52                 if (dest != m_services.end() && source != m_services.end())
  53                         break;
  54         }
  55         if (dest == m_services.end() || source == m_services.end() || source == dest)
  56                 return -1;
  57         while (source != dest)
  58         {
  59                 if (forward)
  60                         std::iter_swap(source++, source);
  61                 else
  62                         std::iter_swap(source--, source);
  63         }
  64         return 0;
  65 }
  66
  67 RESULT eBouquet::flushChanges()
  68 {
  69         FILE *f=fopen((CONFIGDIR"/enigma2/"+m_filename).c_str(), "w");
  70         if (!f)
  71                 return -1;
  72         if ( fprintf(f, "#NAME %s\r\n", m_bouquet_name.c_str()) < 0 )
  73                 goto err;
  74         for (list::iterator i(m_services.begin()); i != m_services.end(); ++i)
  75         {
  76                 eServiceReference tmp = *i;
  77                 std::string str = tmp.path;
  78                 if ( (i->flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
  79                 {
  80                         unsigned int p1 = str.find("FROM BOUQUET \"");
  81                         if (p1 == std::string::npos)
  82                         {
  83                                 eDebug("doof... kaputt");
  84                                 continue;
  85                         }
  86                         str.erase(0, p1+14);
  87                         p1 = str.find("\"");
  88                         if (p1 == std::string::npos)
  89                         {
  90                                 eDebug("doof2... kaputt");
  91                                 continue;
  92                         }
  93                         str.erase(p1);
  94                         tmp.path=str;
  95                 }
  96                 if ( fprintf(f, "#SERVICE %s\r\n", tmp.toString().c_str()) < 0 )
  97                         goto err;
  98                 if ( i->name.length() )
  99                         if ( fprintf(f, "#DESCRIPTION %s\r\n", i->name.c_str()) < 0 )
 100                                 goto err;
 101         }
 102         fclose(f);
 103         return 0;
 104 err:
 105         fclose(f);
 106         eDebug("couldn't write file %s", m_filename.c_str());
 107         return -1;
 108 }
 109
 110 RESULT eBouquet::setListName(const std::string &name)
 111 {
 112         m_bouquet_name = name;
 113         return 0;
 114 }
 115
 116 eDVBService::eDVBService()
 117         :m_flags(0)
 118 {
 119 }
 120
 121 eDVBService::~eDVBService()
 122 {
 123 }
 124
 125 eDVBService &eDVBService::operator=(const eDVBService &s)
 126 {
 127         m_service_name = s.m_service_name;
 128         m_service_name_sort = s.m_service_name_sort;
 129         m_provider_name = s.m_provider_name;
 130         m_flags = s.m_flags;
 131         m_ca = s.m_ca;
 132         m_cache = s.m_cache;
 133         return *this;
 134 }
 135
 136 void eDVBService::genSortName()
 137 {
 138         m_service_name_sort = removeDVBChars(m_service_name);
 139         makeUpper(m_service_name_sort);
 140         while ((!m_service_name_sort.empty()) && m_service_name_sort[0] == ' ')
 141                 m_service_name_sort.erase(0, 1);
 142
 143                 /* put unnamed services at the end, not at the beginning. */
 144         if (m_service_name_sort.empty())
 145                 m_service_name_sort = "\xFF";
 146 }
 147
 148 RESULT eDVBService::getName(const eServiceReference &ref, std::string &name)
 149 {
 150         if (!ref.name.empty())
 151                 name = ref.name; // use renamed service name..
 152         else if (!m_service_name.empty())
 153                 name = m_service_name;
 154         else
 155                 name = "(...)";
 156         return 0;
 157 }
 158
 159 RESULT eDVBService::getEvent(const eServiceReference &ref, ePtr<eServiceEvent> &ptr, time_t start_time)
 160 {
 161         return eEPGCache::getInstance()->lookupEventTime(ref, start_time, ptr);
 162 }
 163
 164 bool eDVBService::isPlayable(const eServiceReference &ref, const eServiceReference &ignore)
 165 {
 166         ePtr<eDVBResourceManager> res_mgr;
 167         if ( eDVBResourceManager::getInstance( res_mgr ) )
 168                 eDebug("isPlayble... no res manager!!");
 169         else
 170         {
 171                 eDVBChannelID chid, chid_ignore;
 172                 ((const eServiceReferenceDVB&)ref).getChannelID(chid);
 173                 ((const eServiceReferenceDVB&)ignore).getChannelID(chid_ignore);
 174                 return res_mgr->canAllocateChannel(chid, chid_ignore);
 175         }
 176         return false;
 177 }
 178
 179 int eDVBService::checkFilter(const eServiceReferenceDVB &ref, const eDVBChannelQuery &query)
 180 {
 181         int res = 0;
 182         switch (query.m_type)
 183         {
 184         case eDVBChannelQuery::tName:
 185                 res = m_service_name_sort.find(query.m_string) != std::string::npos;
 186                 break;
 187         case eDVBChannelQuery::tProvider:
 188                 res = m_provider_name.find(query.m_string) != std::string::npos;
 189                 break;
 190         case eDVBChannelQuery::tType:
 191                 res = ref.getServiceType() == query.m_int;
 192                 break;
 193         case eDVBChannelQuery::tBouquet:
 194                 res = 0;
 195                 break;
 196         case eDVBChannelQuery::tSatellitePosition:
 197                 res = ((unsigned int)ref.getDVBNamespace().get())>>16 == (unsigned int)query.m_int;
 198                 break;
 199         case eDVBChannelQuery::tFlags:
 200                 res = (m_flags & query.m_int) == query.m_int;
 201                 break;
 202         case eDVBChannelQuery::tChannelID:
 203         {
 204                 eDVBChannelID chid;
 205                 ref.getChannelID(chid);
 206                 res = chid == query.m_channelid;
 207                 break;
 208         }
 209         case eDVBChannelQuery::tAND:
 210                 res = checkFilter(ref, *query.m_p1) && checkFilter(ref, *query.m_p2);
 211                 break;
 212         case eDVBChannelQuery::tOR:
 213                 res = checkFilter(ref, *query.m_p1) || checkFilter(ref, *query.m_p2);
 214                 break;
 215         case eDVBChannelQuery::tAny:
 216                 res = 1;
 217                 break;
 218         }
 219
 220         if (query.m_inverse)
 221                 return !res;
 222         else
 223                 return res;
 224 }
 225
 226 int eDVBService::getCachePID(cacheID id)
 227 {
 228         std::map<int, int>::iterator it = m_cache.find(id);
 229         if ( it != m_cache.end() )
 230                 return it->second;
 231         return -1;
 232 }
 233
 234 void eDVBService::setCachePID(cacheID id, int pid)
 235 {
 236         if (pid == -1)
 237                 m_cache.erase(id);
 238         else
 239                 m_cache[id] = pid;
 240 }
 241
 242 DEFINE_REF(eDVBDB);
 243
 244         /* THIS CODE IS BAD. it should be replaced by somethine better. */
 245 void eDVBDB::reloadServicelist()
 246 {
 247         eDebug("---- opening lame channel db");
 248         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "rt");
 249         if (!f)
 250         {
 251                 struct stat s;
 252                 if ( !stat("lamedb", &s) )
 253                 {
 254                         if ( !stat(CONFIGDIR"/enigma2", &s) )
 255                         {
 256                                 rename("lamedb", CONFIGDIR"/enigma2/lamedb" );
 257                                 reloadServicelist();
 258                         }
 259                 }
 260                 return;
 261         }
 262         char line[256];
 263         if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
 264         {
 265                 eDebug("not a servicefile");
 266                 fclose(f);
 267                 return;
 268         }
 269         eDebug("reading services");
 270         if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
 271         {
 272                 eDebug("services invalid, no transponders");
 273                 fclose(f);
 274                 return;
 275         }
 276
 277         // clear all transponders
 278
 279         while (!feof(f))
 280         {
 281                 if (!fgets(line, 256, f))
 282                         break;
 283                 if (!strcmp(line, "end\n"))
 284                         break;
 285                 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
 286                 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
 287                 if (original_network_id == -1)
 288                         continue;
 289                 eDVBChannelID channelid = eDVBChannelID(
 290                         eDVBNamespace(dvb_namespace),
 291                         eTransportStreamID(transport_stream_id),
 292                         eOriginalNetworkID(original_network_id));
 293
 294                 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
 295                 while (!feof(f))
 296                 {
 297                         fgets(line, 256, f);
 298                         if (!strcmp(line, "/\n"))
 299                                 break;
 300                         if (line[1]=='s')
 301                         {
 302                                 eDVBFrontendParametersSatellite sat;
 303                                 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion;
 304                                 sscanf(line+2, "%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &orbital_position, &inversion);
 305                                 sat.frequency = frequency;
 306                                 sat.symbol_rate = symbol_rate;
 307                                 sat.polarisation = polarisation;
 308                                 sat.fec = fec;
 309                                 sat.orbital_position =
 310                                         orbital_position < 0 ? orbital_position + 3600 : orbital_position;
 311                                 sat.inversion = inversion;
 312                                 feparm->setDVBS(sat);
 313                         } else if (line[1]=='t')
 314                         {
 315                                 eDVBFrontendParametersTerrestrial ter;
 316                                 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
 317                                 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);
 318                                 ter.frequency = frequency;
 319                                 ter.bandwidth = bandwidth;
 320                                 ter.code_rate_HP = code_rate_HP;
 321                                 ter.code_rate_LP = code_rate_LP;
 322                                 ter.modulation = modulation;
 323                                 ter.transmission_mode = transmission_mode;
 324                                 ter.guard_interval = guard_interval;
 325                                 ter.hierarchy = hierarchy;
 326                                 ter.inversion = inversion;
 327                                 feparm->setDVBT(ter);
 328                         } else if (line[1]=='c')
 329                         {
 330                                 eDVBFrontendParametersCable cab;
 331                                 int frequency, symbol_rate,
 332                                         inversion=eDVBFrontendParametersCable::Inversion::Unknown,
 333                                         modulation=eDVBFrontendParametersCable::Modulation::Auto,
 334                                         fec_inner=eDVBFrontendParametersCable::FEC::fAuto;
 335                                 sscanf(line+2, "%d:%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation, &fec_inner);
 336                                 cab.frequency = frequency;
 337                                 cab.fec_inner = fec_inner;
 338                                 cab.inversion = inversion;
 339                                 cab.symbol_rate = symbol_rate;
 340                                 cab.modulation = modulation;
 341                                 feparm->setDVBC(cab);
 342                         }
 343                 }
 344                 addChannelToList(channelid, feparm);
 345         }
 346
 347         if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
 348         {
 349                 eDebug("services invalid, no services");
 350                 return;
 351         }
 352
 353         // clear all services
 354
 355         int count=0;
 356
 357         while (!feof(f))
 358         {
 359                 if (!fgets(line, 256, f))
 360                         break;
 361                 if (!strcmp(line, "end\n"))
 362                         break;
 363
 364                 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
 365                 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
 366                 if (service_number == -1)
 367                         continue;
 368                 ePtr<eDVBService> s = new eDVBService;
 369                 eServiceReferenceDVB ref =
 370                                                 eServiceReferenceDVB(
 371                                                 eDVBNamespace(dvb_namespace),
 372                                                 eTransportStreamID(transport_stream_id),
 373                                                 eOriginalNetworkID(original_network_id),
 374                                                 eServiceID(service_id),
 375                                                 service_type);
 376                 count++;
 377                 fgets(line, 256, f);
 378                 if (strlen(line))
 379                         line[strlen(line)-1]=0;
 380
 381                 s->m_service_name = line;
 382                 s->genSortName();
 383
 384                 fgets(line, 256, f);
 385                 if (strlen(line))
 386                         line[strlen(line)-1]=0;
 387                 std::string str=line;
 388
 389                 if (str[1]!=':')        // old ... (only service_provider)
 390                 {
 391                         s->m_provider_name=line;
 392                 } else
 393                         while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
 394                         {
 395                                 unsigned int c=str.find(',');
 396                                 char p=str[0];
 397                                 std::string v;
 398                                 if (c == std::string::npos)
 399                                 {
 400                                         v=str.substr(2);
 401                                         str="";
 402                                 } else
 403                                 {
 404                                         v=str.substr(2, c-2);
 405                                         str=str.substr(c+1);
 406                                 }
 407 //                              eDebug("%c ... %s", p, v.c_str());
 408                                 if (p == 'p')
 409                                         s->m_provider_name=v;
 410                                 else if (p == 'f')
 411                                 {
 412                                         sscanf(v.c_str(), "%x", &s->m_flags);
 413                                 } else if (p == 'c')
 414                                 {
 415                                         int cid, val;
 416                                         sscanf(v.c_str(), "%02d%04x", &cid, &val);
 417                                         s->m_cache[cid]=val;
 418                                 } else if (p == 'C')
 419                                 {
 420                                         int val;
 421                                         sscanf(v.c_str(), "%04x", &val);
 422                                         s->m_ca.insert(val);
 423                                 }
 424                         }
 425                 addService(ref, s);
 426         }
 427
 428         eDebug("loaded %d services", count);
 429
 430         fclose(f);
 431 }
 432
 433 void eDVBDB::saveServicelist()
 434 {
 435         eDebug("---- saving lame channel db");
 436         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "w");
 437         int channels=0, services=0;
 438         if (!f)
 439                 eFatal("couldn't save lame channel db!");
 440         fprintf(f, "eDVB services /3/\n");
 441         fprintf(f, "transponders\n");
 442         for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
 443                         i != m_channels.end(); ++i)
 444         {
 445                 const eDVBChannelID &chid = i->first;
 446                 const channel &ch = i->second;
 447
 448                 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
 449                                 chid.transport_stream_id.get(), chid.original_network_id.get());
 450                 eDVBFrontendParametersSatellite sat;
 451                 eDVBFrontendParametersTerrestrial ter;
 452                 eDVBFrontendParametersCable cab;
 453                 if (!ch.m_frontendParameters->getDVBS(sat))
 454                 {
 455                         fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
 456                                 sat.frequency, sat.symbol_rate,
 457                                 sat.polarisation, sat.fec,
 458                                 sat.orbital_position > 1800 ? sat.orbital_position - 3600 : sat.orbital_position,
 459                                 sat.inversion);
 460                 }
 461                 if (!ch.m_frontendParameters->getDVBT(ter))
 462                 {
 463                         fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 464                                 ter.frequency, ter.bandwidth, ter.code_rate_HP,
 465                                 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
 466                                 ter.guard_interval, ter.hierarchy, ter.inversion);
 467                 }
 468                 if (!ch.m_frontendParameters->getDVBC(cab))
 469                 {
 470                         fprintf(f, "\tc %d:%d:%d:%d:%d\n",
 471                                 cab.frequency, cab.symbol_rate, cab.inversion, cab.modulation, cab.fec_inner);
 472                 }
 473                 fprintf(f, "/\n");
 474                 channels++;
 475         }
 476         fprintf(f, "end\nservices\n");
 477
 478         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
 479                 i != m_services.end(); ++i)
 480         {
 481                 const eServiceReferenceDVB &s = i->first;
 482                 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
 483                                 s.getServiceID().get(), s.getDVBNamespace().get(),
 484                                 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
 485                                 s.getServiceType(),
 486                                 0);
 487
 488                 fprintf(f, "%s\n", i->second->m_service_name.c_str());
 489
 490                 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
 491
 492                 // write cached pids
 493                 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
 494                         ca != i->second->m_cache.end(); ++ca)
 495                         fprintf(f, ",c:%02d%04x", ca->first, ca->second);
 496
 497                 // write cached ca pids
 498                 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
 499                         ca != i->second->m_ca.end(); ++ca)
 500                         fprintf(f, ",C:%04x", *ca);
 501
 502                 if (i->second->m_flags)
 503                         fprintf(f, ",f:%x", i->second->m_flags);
 504
 505                 fprintf(f, "\n");
 506                 services++;
 507         }
 508         fprintf(f, "end\nHave a lot of bugs!\n");
 509         eDebug("saved %d channels and %d services!", channels, services);
 510         fclose(f);
 511 }
 512
 513 void eDVBDB::loadBouquet(const char *path)
 514 {
 515         std::string bouquet_name = path;
 516         if (!bouquet_name.length())
 517         {
 518                 eDebug("Bouquet load failed.. no path given..");
 519                 return;
 520         }
 521         unsigned int pos = bouquet_name.rfind('/');
 522         if ( pos != std::string::npos )
 523                 bouquet_name.erase(0, pos+1);
 524         if (bouquet_name.empty())
 525         {
 526                 eDebug("Bouquet load failed.. no filename given..");
 527                 return;
 528         }
 529         eBouquet &bouquet = m_bouquets[bouquet_name];
 530         bouquet.m_filename = bouquet_name;
 531         std::list<eServiceReference> &list = bouquet.m_services;
 532         list.clear();
 533
 534         std::string p = CONFIGDIR"/enigma2/";
 535         p+=path;
 536         eDebug("loading bouquet... %s", p.c_str());
 537         FILE *fp=fopen(p.c_str(), "rt");
 538         int entries=0;
 539         if (!fp)
 540         {
 541                 struct stat s;
 542                 if ( !stat(path, &s) )
 543                 {
 544                         rename(path, p.c_str() );
 545                         loadBouquet(path);
 546                         return;
 547                 }
 548                 eDebug("failed to open.");
 549                 if ( strstr(path, "bouquets.tv") )
 550                 {
 551                         eDebug("recreate bouquets.tv");
 552                         bouquet.m_bouquet_name="Bouquets (TV)";
 553                         bouquet.flushChanges();
 554                 }
 555                 else if ( strstr(path, "bouquets.radio") )
 556                 {
 557                         eDebug("recreate bouquets.radio");
 558                         bouquet.m_bouquet_name="Bouquets (Radio)";
 559                         bouquet.flushChanges();
 560                 }
 561                 return;
 562         }
 563         char line[256];
 564         bool read_descr=false;
 565         eServiceReference *e = NULL;
 566         while (1)
 567         {
 568                 if (!fgets(line, 256, fp))
 569                         break;
 570                 line[strlen(line)-1]=0;
 571                 if (strlen(line) && line[strlen(line)-1]=='\r')
 572                         line[strlen(line)-1]=0;
 573                 if (!line[0])
 574                         break;
 575                 if (line[0]=='#')
 576                 {
 577                         if (!strncmp(line, "#SERVICE ", 9) || !strncmp(line, "#SERVICE: ", 10))
 578                         {
 579                                 int offs = line[8] == ':' ? 10 : 9;
 580                                 eServiceReference tmp(line+offs);
 581                                 if (tmp.type != eServiceReference::idDVB)
 582                                 {
 583                                         eDebug("only DVB Bouquets supported");
 584                                         continue;
 585                                 }
 586                                 if ( (tmp.flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
 587                                 {
 588                                         unsigned int pos = tmp.path.rfind('/');
 589                                         if ( pos != std::string::npos )
 590                                                 tmp.path.erase(0, pos+1);
 591                                         if (tmp.path.empty())
 592                                         {
 593                                                 eDebug("Bouquet load failed.. no filename given..");
 594                                                 continue;
 595                                         }
 596                                         loadBouquet(tmp.path.c_str());
 597                                         char buf[256];
 598                                         snprintf(buf, 256, "(type == %d) FROM BOUQUET \"%s\" ORDER BY bouquet", tmp.data[0], tmp.path.c_str());
 599                                         tmp.path = buf;
 600                                 }
 601                                 list.push_back(tmp);
 602                                 e = &list.back();
 603                                 read_descr=true;
 604                                 ++entries;
 605                         }
 606                         else if (read_descr && !strncmp(line, "#DESCRIPTION ", 13))
 607                         {
 608                                 e->name = line+13;
 609                                 read_descr=false;
 610                         }
 611                         else if (!strncmp(line, "#NAME ", 6))
 612                                 bouquet.m_bouquet_name=line+6;
 613                         continue;
 614                 }
 615         }
 616         fclose(fp);
 617         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 618 }
 619
 620 void eDVBDB::reloadBouquets()
 621 {
 622         m_bouquets.clear();
 623         loadBouquet("bouquets.tv");
 624         loadBouquet("bouquets.radio");
 625 // create default bouquets when missing
 626         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 627         {
 628                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 629                 b.m_filename = "userbouquet.favourites.tv";
 630                 b.m_bouquet_name = "Favourites (TV)";
 631                 b.flushChanges();
 632                 eServiceReference ref;
 633                 memset(ref.data, 0, sizeof(ref.data));
 634                 ref.type=1;
 635                 ref.flags=7;
 636                 ref.data[0]=1;
 637                 ref.path="(type == 1) FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 638                 eBouquet &parent = m_bouquets["bouquets.tv"];
 639                 parent.m_services.push_back(ref);
 640                 parent.flushChanges();
 641         }
 642         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 643         {
 644                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 645                 b.m_filename = "userbouquet.favourites.radio";
 646                 b.m_bouquet_name = "Favourites (Radio)";
 647                 b.flushChanges();
 648                 eServiceReference ref;
 649                 memset(ref.data, 0, sizeof(ref.data));
 650                 ref.type=1;
 651                 ref.flags=7;
 652                 ref.data[0]=2;
 653                 ref.path="(type == 2) FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 654                 eBouquet &parent = m_bouquets["bouquets.radio"];
 655                 parent.m_services.push_back(ref);
 656                 parent.flushChanges();
 657         }
 658 }
 659
 660 eDVBDB *eDVBDB::instance;
 661
 662 eDVBDB::eDVBDB()
 663 {
 664         instance = this;
 665         reloadServicelist();
 666 }
 667
 668 eDVBDB::~eDVBDB()
 669 {
 670         instance=NULL;
 671 }
 672
 673 RESULT eDVBDB::removeService(const eServiceReference &ref)
 674 {
 675         if (ref.type == eServiceReference::idDVB)
 676         {
 677                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 678                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 679                 if (it != m_services.end())
 680                 {
 681                         m_services.erase(it);
 682                         return 0;
 683                 }
 684         }
 685         return -1;
 686 }
 687
 688 RESULT eDVBDB::removeServices(int dvb_namespace, int tsid, int onid, unsigned int orb_pos)
 689 {
 690         return removeServices(eDVBChannelID(eDVBNamespace(dvb_namespace), eTransportStreamID(tsid), eOriginalNetworkID(onid)), orb_pos);
 691 }
 692
 693 RESULT eDVBDB::removeServices(eDVBChannelID chid, unsigned int orbpos)
 694 {
 695         RESULT ret=-1;
 696         eDVBNamespace eNs;
 697         eTransportStreamID eTsid;
 698         eOriginalNetworkID eOnid;
 699         std::map<eDVBChannelID, channel>::iterator it(m_channels.begin());
 700         std::set<eDVBChannelID> removed_chids;
 701         while (it != m_channels.end())
 702         {
 703                 const eDVBChannelID &ch = it->first;
 704                 bool remove=true;
 705                 int system;
 706                 it->second.m_frontendParameters->getSystem(system);
 707                 if ( orbpos != 0xFFFFFFFF && system == iDVBFrontend::feSatellite )
 708                 {
 709                         eDVBFrontendParametersSatellite sat;
 710                         it->second.m_frontendParameters->getDVBS(sat);
 711                         if ((unsigned int)sat.orbital_position != orbpos)
 712                                 remove=false;
 713                 }
 714                 if ( remove && chid.dvbnamespace != eNs && chid.dvbnamespace != ch.dvbnamespace )
 715                         remove=false;
 716                 if ( remove && chid.original_network_id != eOnid && chid.original_network_id != ch.original_network_id )
 717                         remove=false;
 718                 if ( remove && chid.transport_stream_id != eTsid && chid.transport_stream_id != ch.transport_stream_id )
 719                         remove=false;
 720                 if ( remove )
 721                 {
 722                         eDebug("remove %08x %04x %04x",
 723                                 ch.dvbnamespace.get(),
 724                                 ch.original_network_id.get(),
 725                                 ch.transport_stream_id.get());
 726                         removed_chids.insert(it->first);
 727                         m_channels.erase(it++);
 728                 }
 729                 else
 730                         ++it;
 731         }
 732         if (!removed_chids.empty())
 733         {
 734                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator service(m_services.begin());
 735                 while(service != m_services.end())
 736                 {
 737                         eDVBChannelID chid;
 738                         service->first.getChannelID(chid);
 739                         std::set<eDVBChannelID>::iterator it(removed_chids.find(chid));
 740                         if (it != removed_chids.end())
 741                                 m_services.erase(service++);
 742                         else
 743                                 ++service;
 744                         ret=0;
 745                 }
 746         }
 747         return ret;
 748 }
 749
 750 RESULT eDVBDB::addFlag(const eServiceReference &ref, unsigned int flagmask)
 751 {
 752         if (ref.type == eServiceReference::idDVB)
 753         {
 754                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 755                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 756                 if (it != m_services.end())
 757                         it->second->m_flags |= ~flagmask;
 758                 return 0;
 759         }
 760         return -1;
 761 }
 762
 763 RESULT eDVBDB::removeFlag(const eServiceReference &ref, unsigned int flagmask)
 764 {
 765         if (ref.type == eServiceReference::idDVB)
 766         {
 767                 eServiceReferenceDVB &service = (eServiceReferenceDVB&)ref;
 768                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(service));
 769                 if (it != m_services.end())
 770                         it->second->m_flags &= ~flagmask;
 771                 return 0;
 772         }
 773         return -1;
 774 }
 775
 776 RESULT eDVBDB::removeFlags(unsigned int flagmask, int dvb_namespace, int tsid, int onid, unsigned int orb_pos)
 777 {
 778         return removeFlags(flagmask, eDVBChannelID(eDVBNamespace(dvb_namespace), eTransportStreamID(tsid), eOriginalNetworkID(onid)), orb_pos);
 779 }
 780
 781 RESULT eDVBDB::removeFlags(unsigned int flagmask, eDVBChannelID chid, unsigned int orbpos)
 782 {
 783         eDVBNamespace eNs;
 784         eTransportStreamID eTsid;
 785         eOriginalNetworkID eOnid;
 786         std::map<eDVBChannelID, channel>::iterator it(m_channels.begin());
 787         std::set<eDVBChannelID> removed_chids;
 788         while (it != m_channels.end())
 789         {
 790                 const eDVBChannelID &ch = it->first;
 791                 bool remove=true;
 792                 int system;
 793                 it->second.m_frontendParameters->getSystem(system);
 794                 if ( orbpos != 0xFFFFFFFF && system == iDVBFrontend::feSatellite )
 795                 {
 796                         eDVBFrontendParametersSatellite sat;
 797                         it->second.m_frontendParameters->getDVBS(sat);
 798                         if ((unsigned int)sat.orbital_position != orbpos)
 799                                 remove=false;
 800                 }
 801                 if ( remove && chid.dvbnamespace != eNs && chid.dvbnamespace != ch.dvbnamespace )
 802                         remove=false;
 803                 if ( remove && chid.original_network_id != eOnid && chid.original_network_id != ch.original_network_id )
 804                         remove=false;
 805                 if ( remove && chid.transport_stream_id != eTsid && chid.transport_stream_id != ch.transport_stream_id )
 806                         remove=false;
 807                 if ( remove )
 808                         removed_chids.insert(it->first);
 809                 ++it;
 810         }
 811         if (!removed_chids.empty())
 812         {
 813                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator service(m_services.begin());
 814                 while(service != m_services.end())
 815                 {
 816                         eDVBChannelID chid;
 817                         service->first.getChannelID(chid);
 818                         std::set<eDVBChannelID>::iterator it(removed_chids.find(chid));
 819                         if (it != removed_chids.end())
 820                                 service->second->m_flags &= ~flagmask;
 821                         ++service;
 822                 }
 823         }
 824         return 0;
 825 }
 826
 827 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 828 {
 829         channel ch;
 830         assert(feparm);
 831         ch.m_frontendParameters = feparm;
 832         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 833         return 0;
 834 }
 835
 836 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 837 {
 838         m_channels.erase(id);
 839         return 0;
 840 }
 841
 842 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 843 {
 844         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 845         if (i == m_channels.end())
 846         {
 847                 parm = 0;
 848                 return -ENOENT;
 849         }
 850         parm = i->second.m_frontendParameters;
 851         return 0;
 852 }
 853
 854 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 855 {
 856         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_services.find(serviceref));
 857         if (it == m_services.end())
 858         {
 859                 service->m_flags |= eDVBService::dxNewFound;
 860                 m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 861         }
 862         else
 863                 it->second->m_flags &= ~eDVBService::dxNewFound;
 864         return 0;
 865 }
 866
 867 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 868 {
 869         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 870         i = m_services.find(reference);
 871         if (i == m_services.end())
 872         {
 873                 service = 0;
 874                 return -ENOENT;
 875         }
 876         service = i->second;
 877         return 0;
 878 }
 879
 880 RESULT eDVBDB::flush()
 881 {
 882         saveServicelist();
 883         return 0;
 884 }
 885
 886 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 887 {
 888         std::string str = ref.path;
 889         if (str.empty())
 890         {
 891                 eDebug("getBouquet failed.. no path given!");
 892                 return -1;
 893         }
 894         unsigned int pos = str.find("FROM BOUQUET \"");
 895         if ( pos != std::string::npos )
 896         {
 897                 str.erase(0, pos+14);
 898                 pos = str.find('"');
 899                 if ( pos != std::string::npos )
 900                         str.erase(pos);
 901                 else
 902                         str.clear();
 903         }
 904         if (str.empty())
 905         {
 906                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 907                 return -1;
 908         }
 909         std::map<std::string, eBouquet>::iterator i =
 910                 m_bouquets.find(str);
 911         if (i == m_bouquets.end())
 912         {
 913                 bouquet = 0;
 914                 return -ENOENT;
 915         }
 916         bouquet = &i->second;
 917         return 0;
 918 }
 919
 920 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 921 {
 922         if ( source.path.find("FROM") != std::string::npos )
 923         {
 924                 if ( source.path.find("BOUQUET") != std::string::npos )
 925                         query = new eDVBDBBouquetQuery(this, source, q);
 926                 else if ( source.path.find("SATELLITES") != std::string::npos )
 927                         query = new eDVBDBSatellitesQuery(this, source, q);
 928                 else if ( source.path.find("PROVIDERS") != std::string::npos )
 929                         query = new eDVBDBProvidersQuery(this, source, q);
 930                 else
 931                         eFatal("invalid query %s", source.toString().c_str());
 932         }
 933         else
 934                 query = new eDVBDBQuery(this, source, q);
 935         return 0;
 936 }
 937
 938 eServiceReference eDVBDB::searchReference(int tsid, int onid, int sid)
 939 {
 940         eServiceID Sid(sid);
 941         eTransportStreamID Tsid(tsid);
 942         eOriginalNetworkID Onid(onid);
 943         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator sit(m_services.begin());
 944                 sit != m_services.end(); ++sit)
 945         {
 946                 if (sit->first.getTransportStreamID() == Tsid &&
 947                         sit->first.getOriginalNetworkID() == Onid &&
 948                         sit->first.getServiceID() == Sid)
 949                         return sit->first;
 950         }
 951         return eServiceReference();
 952 }
 953
 954 DEFINE_REF(eDVBDBQueryBase);
 955
 956 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 957         :m_db(db), m_query(query), m_source(source)
 958 {
 959 }
 960
 961 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 962 {
 963         ePtr<eDVBService> a_service, b_service;
 964
 965         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
 966
 967         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
 968         {
 969                 if (m_db->getService(a, a_service))
 970                         return 1;
 971                 if (m_db->getService(b, b_service))
 972                         return 1;
 973         }
 974
 975         switch (sortmode)
 976         {
 977         case eDVBChannelQuery::tName:
 978                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
 979         case eDVBChannelQuery::tProvider:
 980                 return a_service->m_provider_name < b_service->m_provider_name;
 981         case eDVBChannelQuery::tType:
 982                 return a.getServiceType() < b.getServiceType();
 983         case eDVBChannelQuery::tBouquet:
 984                 return 0;
 985         case eDVBChannelQuery::tSatellitePosition:
 986                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
 987         default:
 988                 return 1;
 989         }
 990         return 0;
 991 }
 992
 993 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 994         :eDVBDBQueryBase(db, source, query)
 995 {
 996         m_cursor = m_db->m_services.begin();
 997 }
 998
 999 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
1000 {
1001         while (m_cursor != m_db->m_services.end())
1002         {
1003                 ref = m_cursor->first;
1004
1005                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
1006
1007                 ++m_cursor;
1008
1009                 if (res)
1010                         return 0;
1011         }
1012
1013         ref.type = eServiceReference::idInvalid;
1014
1015         return 1;
1016 }
1017
1018 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1019         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
1020 {
1021 }
1022
1023 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
1024 {
1025         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
1026         std::list<eServiceReference> &list = bouquet.m_services;
1027         while (m_cursor != list.end())
1028         {
1029                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
1030
1031                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
1032                         m_db->m_services.find(ref);
1033
1034                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
1035
1036                 ++m_cursor;
1037
1038                 if (res)
1039                         return 0;
1040         }
1041
1042         ref.type = eServiceReference::idInvalid;
1043
1044         return 1;
1045 }
1046
1047 eDVBDBListQuery::eDVBDBListQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1048         :eDVBDBQueryBase(db, source, query), m_cursor(m_list.end())
1049 {
1050 }
1051
1052 RESULT eDVBDBListQuery::getNextResult(eServiceReferenceDVB &ref)
1053 {
1054         if (m_cursor != m_list.end())
1055         {
1056                 ref = *m_cursor++;
1057                 return 0;
1058         }
1059         ref.type = eServiceReference::idInvalid;
1060         return 1;
1061 }
1062
1063 int eDVBDBListQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
1064 {
1065         if ( m_query->m_sort == eDVBChannelQuery::tSatellitePosition )
1066         {
1067                 int x = (a.getDVBNamespace().get() >> 16);
1068                 int y = (b.getDVBNamespace().get() >> 16);
1069                 if ( x > 1800 )
1070                         x -= 3600;
1071                 if ( y > 1800 )
1072                         y -= 3600;
1073                 return x < y;
1074         }
1075         return a.name < b.name;
1076 }
1077
1078 eDVBDBSatellitesQuery::eDVBDBSatellitesQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1079         :eDVBDBListQuery(db, source, query)
1080 {
1081         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
1082                 it != m_db->m_services.end(); ++it)
1083         {
1084                 int res = it->second->checkFilter(it->first, *query);
1085                 if (res)
1086                 {
1087                         unsigned int dvbnamespace = it->first.getDVBNamespace().get()&0xFFFF0000;
1088                         bool found=0;
1089                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
1090                                 if ( (i->getDVBNamespace().get()&0xFFFF0000) == dvbnamespace )
1091                                 {
1092                                         found=true;
1093                                         break;
1094                                 }
1095                         if (!found)
1096                         {
1097                                 eServiceReferenceDVB ref;
1098                                 ref.setDVBNamespace(dvbnamespace);
1099                                 ref.flags=eServiceReference::flagDirectory;
1100                                 char buf[128];
1101                                 snprintf(buf, 128, "(satellitePosition == %d) && ", dvbnamespace>>16);
1102
1103                                 ref.path=buf+source.path;
1104                                 unsigned int pos=ref.path.find("FROM");
1105                                 ref.path.erase(pos);
1106                                 ref.path+="ORDER BY name";
1107 //                              eDebug("ref.path now %s", ref.path.c_str());
1108                                 m_list.push_back(ref);
1109
1110                                 ref.path=buf+source.path;
1111                                 pos=ref.path.find("FROM");
1112                                 ref.path.erase(pos+5);
1113                                 ref.path+="PROVIDERS ORDER BY name";
1114 //                              eDebug("ref.path now %s", ref.path.c_str());
1115                                 m_list.push_back(ref);
1116
1117                                 snprintf(buf, 128, "(satellitePosition == %d) && (flags == %d) && ", dvbnamespace>>16, eDVBService::dxNewFound);
1118                                 ref.path=buf+source.path;
1119                                 pos=ref.path.find("FROM");
1120                                 ref.path.erase(pos);
1121                                 ref.path+="ORDER BY name";
1122 //                              eDebug("ref.path now %s", ref.path.c_str());
1123                                 m_list.push_back(ref);
1124                         }
1125                 }
1126         }
1127         m_cursor=m_list.begin();
1128 }
1129
1130 eDVBDBProvidersQuery::eDVBDBProvidersQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
1131         :eDVBDBListQuery(db, source, query)
1132 {
1133         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
1134                 it != m_db->m_services.end(); ++it)
1135         {
1136                 int res = it->second->checkFilter(it->first, *query);
1137                 if (res)
1138                 {
1139                         bool found=0;
1140
1141                         const char *provider_name = it->second->m_provider_name.length() ?
1142                                 it->second->m_provider_name.c_str() :
1143                                 "Unknown";
1144
1145                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
1146                                 if (i->name == provider_name)
1147                                 {
1148                                         found=true;
1149                                         break;
1150                                 }
1151                         if (!found)
1152                         {
1153                                 eServiceReferenceDVB ref;
1154                                 char buf[64];
1155                                 ref.name=provider_name;
1156                                 snprintf(buf, 64, "(provider == \"%s\") && ", provider_name);
1157                                 ref.path=buf+source.path;
1158                                 unsigned int pos = ref.path.find("FROM");
1159                                 ref.flags=eServiceReference::flagDirectory;
1160                                 ref.path.erase(pos);
1161                                 ref.path+="ORDER BY name";
1162 //                              eDebug("ref.path now %s", ref.path.c_str());
1163                                 m_list.push_back(ref);
1164                         }
1165                 }
1166         }
1167         m_cursor=m_list.begin();
1168 }
1169
1170 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
1171
1172 static int decodeType(const std::string &type)
1173 {
1174         if (type == "name")
1175                 return eDVBChannelQuery::tName;
1176         else if (type == "provider")
1177                 return eDVBChannelQuery::tProvider;
1178         else if (type == "type")
1179                 return eDVBChannelQuery::tType;
1180         else if (type == "bouquet")
1181                 return eDVBChannelQuery::tBouquet;
1182         else if (type == "satellitePosition")
1183                 return eDVBChannelQuery::tSatellitePosition;
1184         else if (type == "channelID")
1185                 return eDVBChannelQuery::tChannelID;
1186         else if (type == "flags")
1187                 return eDVBChannelQuery::tFlags;
1188         else
1189                 return -1;
1190 }
1191
1192         /* never, NEVER write a parser in C++! */
1193 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
1194 {
1195         std::list<std::string>::const_iterator end_of_exp;
1196
1197         if (begin == end)
1198         {
1199                 eDebug("empty expression!");
1200                 return 0;
1201         }
1202
1203         if (*begin == "(")
1204         {
1205                 end_of_exp = begin;
1206                 while (end_of_exp != end)
1207                         if (*end_of_exp == ")")
1208                                 break;
1209                         else
1210                                 ++end_of_exp;
1211
1212                 if (end_of_exp == end)
1213                 {
1214                         eDebug("expression parse: end of expression while searching for closing brace");
1215                         return -1;
1216                 }
1217
1218                 ++begin;
1219                 // begin..end_of_exp
1220                 int r = parseExpression(res, begin, end_of_exp);
1221                 if (r)
1222                         return r;
1223                 ++end_of_exp;
1224
1225                         /* we had only one sub expression */
1226                 if (end_of_exp == end)
1227                 {
1228 //                      eDebug("only one sub expression");
1229                         return 0;
1230                 }
1231
1232                         /* otherwise we have an operator here.. */
1233
1234                 ePtr<eDVBChannelQuery> r2 = res;
1235                 res = new eDVBChannelQuery();
1236                 res->m_sort = 0;
1237                 res->m_p1 = r2;
1238                 res->m_inverse = 0;
1239                 r2 = 0;
1240
1241                 if (*end_of_exp == "||")
1242                         res->m_type = eDVBChannelQuery::tOR;
1243                 else if (*end_of_exp == "&&")
1244                         res->m_type = eDVBChannelQuery::tAND;
1245                 else
1246                 {
1247                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
1248                         res = 0;
1249                         return 1;
1250                 }
1251
1252                 ++end_of_exp;
1253
1254                 return parseExpression(res->m_p2, end_of_exp, end);
1255         }
1256
1257         // "begin" <op> "end"
1258         std::string type, op, val;
1259
1260         res = new eDVBChannelQuery();
1261         res->m_sort = 0;
1262
1263         int cnt = 0;
1264         while (begin != end)
1265         {
1266                 switch (cnt)
1267                 {
1268                 case 0:
1269                         type = *begin;
1270                         break;
1271                 case 1:
1272                         op = *begin;
1273                         break;
1274                 case 2:
1275                         val = *begin;
1276                         break;
1277                 case 3:
1278                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
1279                         return 1;
1280                 }
1281                 ++begin;
1282                 ++cnt;
1283         }
1284
1285         if (cnt != 3)
1286         {
1287                 eDebug("malformed query: missing stuff");
1288                 res = 0;
1289                 return 1;
1290         }
1291
1292         res->m_type = decodeType(type);
1293
1294         if (res->m_type == -1)
1295         {
1296                 eDebug("malformed query: invalid type %s", type.c_str());
1297                 res = 0;
1298                 return 1;
1299         }
1300
1301         if (op == "==")
1302                 res->m_inverse = 0;
1303         else if (op == "!=")
1304                 res->m_inverse = 1;
1305         else
1306         {
1307                 eDebug("invalid operator %s", op.c_str());
1308                 res = 0;
1309                 return 1;
1310         }
1311
1312         res->m_string = val;
1313         res->m_int = atoi(val.c_str());
1314 //      res->m_channelid = eDVBChannelID(val);
1315
1316         return 0;
1317 }
1318
1319 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
1320 {
1321         std::list<std::string> tokens;
1322
1323         std::string current_token;
1324         std::string bouquet_name;
1325
1326 //      eDebug("splitting %s....", query.c_str());
1327         unsigned int i = 0;
1328         const char *splitchars="()";
1329         int quotemode = 0, lastsplit = 0, lastalnum = 0;
1330         while (i <= query.size())
1331         {
1332                 int c = (i < query.size()) ? query[i] : ' ';
1333                 ++i;
1334
1335                 int issplit = !!strchr(splitchars, c);
1336                 int isaln = isalnum(c);
1337                 int iswhite = c == ' ';
1338                 int isquot = c == '\"';
1339
1340                 if (quotemode)
1341                 {
1342                         iswhite = issplit = 0;
1343                         isaln = lastalnum;
1344                 }
1345
1346                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
1347                 {
1348                         if (current_token.size())
1349                                 tokens.push_back(current_token);
1350                         current_token.clear();
1351                 }
1352
1353                 if (!(iswhite || isquot))
1354                         current_token += c;
1355
1356                 if (isquot)
1357                         quotemode = !quotemode;
1358                 lastsplit = issplit;
1359                 lastalnum = isaln;
1360         }
1361
1362 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
1363 //      {
1364 //              printf("%s\n", a->c_str());
1365 //      }
1366
1367         int sort = eDVBChannelQuery::tName;
1368                 /* check for "ORDER BY ..." */
1369
1370         std::list<std::string>::iterator it = tokens.begin();
1371         while (it != tokens.end())
1372         {
1373                 if (*it == "ORDER")
1374                 {
1375                         tokens.erase(it++);
1376                         if (it != tokens.end() && *it == "BY")
1377                         {
1378                                 tokens.erase(it++);
1379                                 sort = decodeType(*it);
1380                                 tokens.erase(it++);
1381                         } else
1382                                 sort = -1;
1383                 }
1384                 else if (*it == "FROM")
1385                 {
1386                         tokens.erase(it++);
1387                         if (it != tokens.end() && *it == "BOUQUET")
1388                         {
1389                                 tokens.erase(it++);
1390                                 bouquet_name = *it;
1391                                 tokens.erase(it++);
1392                         }
1393                         else if (it != tokens.end() && *it == "SATELLITES")
1394                                 tokens.erase(it++);
1395                         else if (it != tokens.end() && *it == "PROVIDERS")
1396                                 tokens.erase(it++);
1397                         else
1398                         {
1399                                 eDebug("FROM unknown %s", (*it).c_str());
1400                                 tokens.erase(it++);
1401                         }
1402                 }
1403                 else
1404                         ++it;
1405         }
1406
1407         if (sort == -1)
1408         {
1409                 eWarning("ORDER BY .. string invalid.");
1410                 res = 0;
1411                 return -1;
1412         }
1413
1414 //      eDebug("sort by %d", sort);
1415
1416                 /* now we recursivly parse that. */
1417         int r = parseExpression(res, tokens.begin(), tokens.end());
1418
1419                 /* we have an empty (but valid!) expression */
1420         if (!r && !res)
1421         {
1422                 res = new eDVBChannelQuery();
1423                 res->m_inverse = 0;
1424                 res->m_type = eDVBChannelQuery::tAny;
1425         }
1426
1427         if (res)
1428         {
1429                 res->m_sort = sort;
1430                 res->m_bouquet_name = bouquet_name;
1431         }
1432
1433 //      eDebug("return: %d", r);
1434         return r;
1435 }
1436
1437 DEFINE_REF(eDVBChannelQuery);