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