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                                 int frequency, symbol_rate, inversion=0, modulation=3;
 322                                 sscanf(line+2, "%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation);
 323 //                              t.setCable(frequency, symbol_rate, inversion, modulation);
 324                         }
 325                 }
 326                 addChannelToList(channelid, feparm);
 327         }
 328
 329         if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
 330         {
 331                 eDebug("services invalid, no services");
 332                 return;
 333         }
 334
 335         // clear all services
 336
 337         int count=0;
 338
 339         while (!feof(f))
 340         {
 341                 if (!fgets(line, 256, f))
 342                         break;
 343                 if (!strcmp(line, "end\n"))
 344                         break;
 345
 346                 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
 347                 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
 348                 if (service_number == -1)
 349                         continue;
 350                 ePtr<eDVBService> s = new eDVBService;
 351                 eServiceReferenceDVB ref =
 352                                                 eServiceReferenceDVB(
 353                                                 eDVBNamespace(dvb_namespace),
 354                                                 eTransportStreamID(transport_stream_id),
 355                                                 eOriginalNetworkID(original_network_id),
 356                                                 eServiceID(service_id),
 357                                                 service_type);
 358                 count++;
 359                 fgets(line, 256, f);
 360                 if (strlen(line))
 361                         line[strlen(line)-1]=0;
 362
 363                 s->m_service_name = line;
 364                 s->genSortName();
 365
 366                 fgets(line, 256, f);
 367                 if (strlen(line))
 368                         line[strlen(line)-1]=0;
 369                 std::string str=line;
 370
 371                 if (str[1]!=':')        // old ... (only service_provider)
 372                 {
 373                         s->m_provider_name=line;
 374                 } else
 375                         while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
 376                         {
 377                                 unsigned int c=str.find(',');
 378                                 char p=str[0];
 379                                 std::string v;
 380                                 if (c == std::string::npos)
 381                                 {
 382                                         v=str.substr(2);
 383                                         str="";
 384                                 } else
 385                                 {
 386                                         v=str.substr(2, c-2);
 387                                         str=str.substr(c+1);
 388                                 }
 389 //                              eDebug("%c ... %s", p, v.c_str());
 390                                 if (p == 'p')
 391                                         s->m_provider_name=v;
 392                                 else if (p == 'f')
 393                                 {
 394                                         sscanf(v.c_str(), "%x", &s->m_flags);
 395                                 } else if (p == 'c')
 396                                 {
 397                                         int cid, val;
 398                                         sscanf(v.c_str(), "%02d%04x", &cid, &val);
 399                                         s->m_cache[cid]=val;
 400                                 } else if (p == 'C')
 401                                 {
 402                                         int val;
 403                                         sscanf(v.c_str(), "%04x", &val);
 404                                         s->m_ca.insert(val);
 405                                 }
 406                         }
 407                 addService(ref, s);
 408         }
 409
 410         eDebug("loaded %d services", count);
 411
 412         fclose(f);
 413 }
 414
 415 void eDVBDB::saveServicelist()
 416 {
 417         eDebug("---- saving lame channel db");
 418         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "w");
 419         int channels=0, services=0;
 420         if (!f)
 421                 eFatal("couldn't save lame channel db!");
 422         fprintf(f, "eDVB services /3/\n");
 423         fprintf(f, "transponders\n");
 424         for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
 425                         i != m_channels.end(); ++i)
 426         {
 427                 const eDVBChannelID &chid = i->first;
 428                 const channel &ch = i->second;
 429
 430                 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
 431                                 chid.transport_stream_id.get(), chid.original_network_id.get());
 432                 eDVBFrontendParametersSatellite sat;
 433                 eDVBFrontendParametersTerrestrial ter;
 434                 if (!ch.m_frontendParameters->getDVBS(sat))
 435                 {
 436                         fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
 437                                 sat.frequency, sat.symbol_rate,
 438                                 sat.polarisation, sat.fec,
 439                                 sat.orbital_position > 1800 ? sat.orbital_position - 3600 : sat.orbital_position,
 440                                 sat.inversion);
 441                 }
 442                 if (!ch.m_frontendParameters->getDVBT(ter))
 443                 {
 444                         fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 445                                 ter.frequency, ter.bandwidth, ter.code_rate_HP,
 446                                 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
 447                                 ter.guard_interval, ter.hierarchy, ter.inversion);
 448                 }
 449                 fprintf(f, "/\n");
 450                 channels++;
 451         }
 452         fprintf(f, "end\nservices\n");
 453
 454         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
 455                 i != m_services.end(); ++i)
 456         {
 457                 const eServiceReferenceDVB &s = i->first;
 458                 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
 459                                 s.getServiceID().get(), s.getDVBNamespace().get(),
 460                                 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
 461                                 s.getServiceType(),
 462                                 0);
 463
 464                 fprintf(f, "%s\n", i->second->m_service_name.c_str());
 465                 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
 466
 467                 // write cached pids
 468                 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
 469                         ca != i->second->m_cache.end(); ++ca)
 470                         fprintf(f, ",c:%02d%04x", ca->first, ca->second);
 471
 472                 // write cached ca pids
 473                 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
 474                         ca != i->second->m_ca.end(); ++ca)
 475                         fprintf(f, ",C:%04x", *ca);
 476
 477                 fprintf(f, "\n");
 478                 services++;
 479         }
 480         fprintf(f, "end\nHave a lot of bugs!\n");
 481         eDebug("saved %d channels and %d services!", channels, services);
 482         fclose(f);
 483 }
 484
 485 void eDVBDB::loadBouquet(const char *path)
 486 {
 487         std::string bouquet_name = path;
 488         if (!bouquet_name.length())
 489         {
 490                 eDebug("Bouquet load failed.. no path given..");
 491                 return;
 492         }
 493         unsigned int pos = bouquet_name.rfind('/');
 494         if ( pos != std::string::npos )
 495                 bouquet_name.erase(0, pos+1);
 496         if (bouquet_name.empty())
 497         {
 498                 eDebug("Bouquet load failed.. no filename given..");
 499                 return;
 500         }
 501         eBouquet &bouquet = m_bouquets[bouquet_name];
 502         bouquet.m_filename = bouquet_name;
 503         std::list<eServiceReference> &list = bouquet.m_services;
 504         list.clear();
 505
 506         std::string p = CONFIGDIR"/enigma2/";
 507         p+=path;
 508         eDebug("loading bouquet... %s", p.c_str());
 509         FILE *fp=fopen(p.c_str(), "rt");
 510         int entries=0;
 511         if (!fp)
 512         {
 513                 struct stat s;
 514                 if ( !stat(path, &s) )
 515                 {
 516                         rename(path, p.c_str() );
 517                         loadBouquet(path);
 518                         return;
 519                 }
 520                 eDebug("failed to open.");
 521                 if ( strstr(path, "bouquets.tv") )
 522                 {
 523                         eDebug("recreate bouquets.tv");
 524                         bouquet.m_bouquet_name="Bouquets (TV)";
 525                         bouquet.flushChanges();
 526                 }
 527                 else if ( strstr(path, "bouquets.radio") )
 528                 {
 529                         eDebug("recreate bouquets.radio");
 530                         bouquet.m_bouquet_name="Bouquets (Radio)";
 531                         bouquet.flushChanges();
 532                 }
 533                 return;
 534         }
 535         char line[256];
 536         bool read_descr=false;
 537         eServiceReference *e = NULL;
 538         while (1)
 539         {
 540                 if (!fgets(line, 256, fp))
 541                         break;
 542                 line[strlen(line)-1]=0;
 543                 if (strlen(line) && line[strlen(line)-1]=='\r')
 544                         line[strlen(line)-1]=0;
 545                 if (!line[0])
 546                         break;
 547                 if (line[0]=='#')
 548                 {
 549                         if (!strncmp(line, "#SERVICE ", 9) || !strncmp(line, "#SERVICE: ", 10))
 550                         {
 551                                 int offs = line[8] == ':' ? 10 : 9;
 552                                 eServiceReference tmp(line+offs);
 553                                 if (tmp.type != eServiceReference::idDVB)
 554                                 {
 555                                         eDebug("only DVB Bouquets supported");
 556                                         continue;
 557                                 }
 558                                 if ( (tmp.flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
 559                                 {
 560                                         unsigned int pos = tmp.path.rfind('/');
 561                                         if ( pos != std::string::npos )
 562                                                 tmp.path.erase(0, pos+1);
 563                                         if (tmp.path.empty())
 564                                         {
 565                                                 eDebug("Bouquet load failed.. no filename given..");
 566                                                 continue;
 567                                         }
 568                                         loadBouquet(tmp.path.c_str());
 569                                         char buf[256];
 570                                         snprintf(buf, 256, "(type == %d) FROM BOUQUET \"%s\" ORDER BY bouquet", tmp.data[0], tmp.path.c_str());
 571                                         tmp.path = buf;
 572                                 }
 573                                 list.push_back(tmp);
 574                                 e = &list.back();
 575                                 read_descr=true;
 576                                 ++entries;
 577                         }
 578                         else if (read_descr && !strncmp(line, "#DESCRIPTION ", 13))
 579                         {
 580                                 e->name = line+13;
 581                                 read_descr=false;
 582                         }
 583                         else if (!strncmp(line, "#NAME ", 6))
 584                                 bouquet.m_bouquet_name=line+6;
 585                         continue;
 586                 }
 587         }
 588         fclose(fp);
 589         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 590 }
 591
 592 void eDVBDB::reloadBouquets()
 593 {
 594         m_bouquets.clear();
 595         loadBouquet("bouquets.tv");
 596         loadBouquet("bouquets.radio");
 597 // create default bouquets when missing
 598         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 599         {
 600                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 601                 b.m_filename = "userbouquet.favourites.tv";
 602                 b.m_bouquet_name = "Favourites (TV)";
 603                 b.flushChanges();
 604                 eServiceReference ref;
 605                 memset(ref.data, 0, sizeof(ref.data));
 606                 ref.type=1;
 607                 ref.flags=7;
 608                 ref.data[0]=1;
 609                 ref.path="(type == 1) FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 610                 eBouquet &parent = m_bouquets["bouquets.tv"];
 611                 parent.m_services.push_back(ref);
 612                 parent.flushChanges();
 613         }
 614         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 615         {
 616                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 617                 b.m_filename = "userbouquet.favourites.radio";
 618                 b.m_bouquet_name = "Favourites (Radio)";
 619                 b.flushChanges();
 620                 eServiceReference ref;
 621                 memset(ref.data, 0, sizeof(ref.data));
 622                 ref.type=1;
 623                 ref.flags=7;
 624                 ref.data[0]=2;
 625                 ref.path="(type == 2) FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 626                 eBouquet &parent = m_bouquets["bouquets.radio"];
 627                 parent.m_services.push_back(ref);
 628                 parent.flushChanges();
 629         }
 630 }
 631
 632 eDVBDB *eDVBDB::instance;
 633
 634 eDVBDB::eDVBDB()
 635 {
 636         instance = this;
 637         reloadServicelist();
 638 }
 639
 640 eDVBDB::~eDVBDB()
 641 {
 642         instance=NULL;
 643 }
 644
 645 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 646 {
 647         channel ch;
 648         assert(feparm);
 649         ch.m_frontendParameters = feparm;
 650         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 651         return 0;
 652 }
 653
 654 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 655 {
 656         m_channels.erase(id);
 657         return 0;
 658 }
 659
 660 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 661 {
 662         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 663         if (i == m_channels.end())
 664         {
 665                 parm = 0;
 666                 return -ENOENT;
 667         }
 668         parm = i->second.m_frontendParameters;
 669         return 0;
 670 }
 671
 672 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 673 {
 674         m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 675         return 0;
 676 }
 677
 678 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 679 {
 680         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 681         i = m_services.find(reference);
 682         if (i == m_services.end())
 683         {
 684                 service = 0;
 685                 return -ENOENT;
 686         }
 687         service = i->second;
 688         return 0;
 689 }
 690
 691 RESULT eDVBDB::flush()
 692 {
 693         saveServicelist();
 694         return 0;
 695 }
 696
 697 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 698 {
 699         std::string str = ref.path;
 700         if (str.empty())
 701         {
 702                 eDebug("getBouquet failed.. no path given!");
 703                 return -1;
 704         }
 705         unsigned int pos = str.find("FROM BOUQUET \"");
 706         if ( pos != std::string::npos )
 707         {
 708                 str.erase(0, pos+14);
 709                 pos = str.find('"');
 710                 if ( pos != std::string::npos )
 711                         str.erase(pos);
 712                 else
 713                         str.clear();
 714         }
 715         if (str.empty())
 716         {
 717                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 718                 return -1;
 719         }
 720         std::map<std::string, eBouquet>::iterator i =
 721                 m_bouquets.find(str);
 722         if (i == m_bouquets.end())
 723         {
 724                 bouquet = 0;
 725                 return -ENOENT;
 726         }
 727         bouquet = &i->second;
 728         return 0;
 729 }
 730
 731 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 732 {
 733         if ( source.path.find("FROM") != std::string::npos )
 734         {
 735                 if ( source.path.find("BOUQUET") != std::string::npos )
 736                         query = new eDVBDBBouquetQuery(this, source, q);
 737                 else if ( source.path.find("SATELLITES") != std::string::npos )
 738                         query = new eDVBDBSatellitesQuery(this, source, q);
 739                 else if ( source.path.find("PROVIDERS") != std::string::npos )
 740                         query = new eDVBDBProvidersQuery(this, source, q);
 741                 else
 742                         eFatal("invalid query %s", source.toString().c_str());
 743         }
 744         else
 745                 query = new eDVBDBQuery(this, source, q);
 746         return 0;
 747 }
 748
 749 DEFINE_REF(eDVBDBQueryBase);
 750
 751 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 752         :m_db(db), m_query(query), m_source(source)
 753 {
 754 }
 755
 756 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 757 {
 758         ePtr<eDVBService> a_service, b_service;
 759
 760         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
 761
 762         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
 763         {
 764                 if (m_db->getService(a, a_service))
 765                         return 1;
 766                 if (m_db->getService(b, b_service))
 767                         return 1;
 768         }
 769
 770         switch (sortmode)
 771         {
 772         case eDVBChannelQuery::tName:
 773                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
 774         case eDVBChannelQuery::tProvider:
 775                 return a_service->m_provider_name < b_service->m_provider_name;
 776         case eDVBChannelQuery::tType:
 777                 return a.getServiceType() < b.getServiceType();
 778         case eDVBChannelQuery::tBouquet:
 779                 return 0;
 780         case eDVBChannelQuery::tSatellitePosition:
 781                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
 782         default:
 783                 return 1;
 784         }
 785         return 0;
 786 }
 787
 788 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 789         :eDVBDBQueryBase(db, source, query)
 790 {
 791         m_cursor = m_db->m_services.begin();
 792 }
 793
 794 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
 795 {
 796         while (m_cursor != m_db->m_services.end())
 797         {
 798                 ref = m_cursor->first;
 799
 800                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
 801
 802                 ++m_cursor;
 803
 804                 if (res)
 805                         return 0;
 806         }
 807
 808         ref.type = eServiceReference::idInvalid;
 809
 810         return 1;
 811 }
 812
 813 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 814         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
 815 {
 816 }
 817
 818 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
 819 {
 820         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
 821         std::list<eServiceReference> &list = bouquet.m_services;
 822         while (m_cursor != list.end())
 823         {
 824                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
 825
 826                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
 827                         m_db->m_services.find(ref);
 828
 829                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
 830
 831                 ++m_cursor;
 832
 833                 if (res)
 834                         return 0;
 835         }
 836
 837         ref.type = eServiceReference::idInvalid;
 838
 839         return 1;
 840 }
 841
 842 eDVBDBListQuery::eDVBDBListQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 843         :eDVBDBQueryBase(db, source, query), m_cursor(m_list.end())
 844 {
 845 }
 846
 847 RESULT eDVBDBListQuery::getNextResult(eServiceReferenceDVB &ref)
 848 {
 849         if (m_cursor != m_list.end())
 850         {
 851                 ref = *m_cursor++;
 852                 return 0;
 853         }
 854         ref.type = eServiceReference::idInvalid;
 855         return 1;
 856 }
 857
 858 int eDVBDBListQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 859 {
 860         if ( m_query->m_sort == eDVBChannelQuery::tSatellitePosition )
 861         {
 862                 int x = (a.getDVBNamespace().get() >> 16);
 863                 int y = (b.getDVBNamespace().get() >> 16);
 864                 if ( x > 1800 )
 865                         x -= 3600;
 866                 if ( y > 1800 )
 867                         y -= 3600;
 868                 return x < y;
 869         }
 870         return a.name < b.name;
 871 }
 872
 873 eDVBDBSatellitesQuery::eDVBDBSatellitesQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 874         :eDVBDBListQuery(db, source, query)
 875 {
 876         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
 877                 it != m_db->m_services.end(); ++it)
 878         {
 879                 int res = it->second->checkFilter(it->first, *query);
 880                 if (res)
 881                 {
 882                         unsigned int dvbnamespace = it->first.getDVBNamespace().get()&0xFFFF0000;
 883                         bool found=0;
 884                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
 885                                 if ( (i->getDVBNamespace().get()&0xFFFF0000) == dvbnamespace )
 886                                 {
 887                                         found=true;
 888                                         break;
 889                                 }
 890                         if (!found)
 891                         {
 892                                 eServiceReferenceDVB ref;
 893                                 ref.setDVBNamespace(dvbnamespace);
 894                                 ref.flags=eServiceReference::flagDirectory;
 895                                 char buf[64];
 896                                 snprintf(buf, 64, "(satellitePosition == %d) && ", dvbnamespace>>16);
 897
 898                                 ref.path=buf+source.path;
 899                                 unsigned int pos=ref.path.find("FROM");
 900                                 ref.path.erase(pos);
 901                                 ref.path+="ORDER BY name";
 902 //                              eDebug("ref.path now %s", ref.path.c_str());
 903                                 m_list.push_back(ref);
 904
 905                                 ref.path=buf+source.path;
 906                                 pos=ref.path.find("FROM");
 907                                 ref.path.erase(pos+5);
 908                                 ref.path+="PROVIDERS ORDER BY name";
 909 //                              eDebug("ref.path now %s", ref.path.c_str());
 910                                 m_list.push_back(ref);
 911                         }
 912                 }
 913         }
 914         m_cursor=m_list.begin();
 915 }
 916
 917 eDVBDBProvidersQuery::eDVBDBProvidersQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 918         :eDVBDBListQuery(db, source, query)
 919 {
 920         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
 921                 it != m_db->m_services.end(); ++it)
 922         {
 923                 int res = it->second->checkFilter(it->first, *query);
 924                 if (res)
 925                 {
 926                         bool found=0;
 927
 928                         const char *provider_name = it->second->m_provider_name.length() ?
 929                                 it->second->m_provider_name.c_str() :
 930                                 "Unknown";
 931
 932                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
 933                                 if (i->name == provider_name)
 934                                 {
 935                                         found=true;
 936                                         break;
 937                                 }
 938                         if (!found)
 939                         {
 940                                 eServiceReferenceDVB ref;
 941                                 char buf[64];
 942                                 ref.name=provider_name;
 943                                 snprintf(buf, 64, "(provider == \"%s\") && ", provider_name);
 944                                 ref.path=buf+source.path;
 945                                 unsigned int pos = ref.path.find("FROM");
 946                                 ref.flags=eServiceReference::flagDirectory;
 947                                 ref.path.erase(pos);
 948                                 ref.path+="ORDER BY name";
 949 //                              eDebug("ref.path now %s", ref.path.c_str());
 950                                 m_list.push_back(ref);
 951                         }
 952                 }
 953         }
 954         m_cursor=m_list.begin();
 955 }
 956
 957 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
 958
 959 static int decodeType(const std::string &type)
 960 {
 961         if (type == "name")
 962                 return eDVBChannelQuery::tName;
 963         else if (type == "provider")
 964                 return eDVBChannelQuery::tProvider;
 965         else if (type == "type")
 966                 return eDVBChannelQuery::tType;
 967         else if (type == "bouquet")
 968                 return eDVBChannelQuery::tBouquet;
 969         else if (type == "satellitePosition")
 970                 return eDVBChannelQuery::tSatellitePosition;
 971         else if (type == "channelID")
 972                 return eDVBChannelQuery::tChannelID;
 973         else
 974                 return -1;
 975 }
 976
 977         /* never, NEVER write a parser in C++! */
 978 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
 979 {
 980         std::list<std::string>::const_iterator end_of_exp;
 981         if (*begin == "(")
 982         {
 983                 end_of_exp = begin;
 984                 while (end_of_exp != end)
 985                         if (*end_of_exp == ")")
 986                                 break;
 987                         else
 988                                 ++end_of_exp;
 989
 990                 if (end_of_exp == end)
 991                 {
 992                         eDebug("expression parse: end of expression while searching for closing brace");
 993                         return -1;
 994                 }
 995
 996                 ++begin;
 997                 // begin..end_of_exp
 998                 int r = parseExpression(res, begin, end_of_exp);
 999                 if (r)
1000                         return r;
1001                 ++end_of_exp;
1002
1003                         /* we had only one sub expression */
1004                 if (end_of_exp == end)
1005                 {
1006 //                      eDebug("only one sub expression");
1007                         return 0;
1008                 }
1009
1010                         /* otherwise we have an operator here.. */
1011
1012                 ePtr<eDVBChannelQuery> r2 = res;
1013                 res = new eDVBChannelQuery();
1014                 res->m_sort = 0;
1015                 res->m_p1 = r2;
1016                 res->m_inverse = 0;
1017                 r2 = 0;
1018
1019                 if (*end_of_exp == "||")
1020                         res->m_type = eDVBChannelQuery::tOR;
1021                 else if (*end_of_exp == "&&")
1022                         res->m_type = eDVBChannelQuery::tAND;
1023                 else
1024                 {
1025                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
1026                         res = 0;
1027                         return 1;
1028                 }
1029
1030                 ++end_of_exp;
1031
1032                 return parseExpression(res->m_p2, end_of_exp, end);
1033         }
1034
1035         // "begin" <op> "end"
1036         std::string type, op, val;
1037
1038         res = new eDVBChannelQuery();
1039         res->m_sort = 0;
1040
1041         int cnt = 0;
1042         while (begin != end)
1043         {
1044                 switch (cnt)
1045                 {
1046                 case 0:
1047                         type = *begin;
1048                         break;
1049                 case 1:
1050                         op = *begin;
1051                         break;
1052                 case 2:
1053                         val = *begin;
1054                         break;
1055                 case 3:
1056                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
1057                         return 1;
1058                 }
1059                 ++begin;
1060                 ++cnt;
1061         }
1062
1063         if (cnt != 3)
1064         {
1065                 eDebug("malformed query: missing stuff");
1066                 res = 0;
1067                 return 1;
1068         }
1069
1070         res->m_type = decodeType(type);
1071
1072         if (res->m_type == -1)
1073         {
1074                 eDebug("malformed query: invalid type %s", type.c_str());
1075                 res = 0;
1076                 return 1;
1077         }
1078
1079         if (op == "==")
1080                 res->m_inverse = 0;
1081         else if (op == "!=")
1082                 res->m_inverse = 1;
1083         else
1084         {
1085                 eDebug("invalid operator %s", op.c_str());
1086                 res = 0;
1087                 return 1;
1088         }
1089
1090         res->m_string = val;
1091         res->m_int = atoi(val.c_str());
1092 //      res->m_channelid = eDVBChannelID(val);
1093
1094         return 0;
1095 }
1096
1097 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
1098 {
1099         std::list<std::string> tokens;
1100
1101         std::string current_token;
1102         std::string bouquet_name;
1103
1104 //      eDebug("splitting %s....", query.c_str());
1105         unsigned int i = 0;
1106         const char *splitchars="()";
1107         int quotemode = 0, lastsplit = 0, lastalnum = 0;
1108         while (i <= query.size())
1109         {
1110                 int c = (i < query.size()) ? query[i] : ' ';
1111                 ++i;
1112
1113                 int issplit = !!strchr(splitchars, c);
1114                 int isaln = isalnum(c);
1115                 int iswhite = c == ' ';
1116                 int isquot = c == '\"';
1117
1118                 if (quotemode)
1119                 {
1120                         iswhite = issplit = 0;
1121                         isaln = lastalnum;
1122                 }
1123
1124                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
1125                 {
1126                         if (current_token.size())
1127                                 tokens.push_back(current_token);
1128                         current_token.clear();
1129                 }
1130
1131                 if (!(iswhite || isquot))
1132                         current_token += c;
1133
1134                 if (isquot)
1135                         quotemode = !quotemode;
1136                 lastsplit = issplit;
1137                 lastalnum = isaln;
1138         }
1139
1140 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
1141 //      {
1142 //              printf("%s\n", a->c_str());
1143 //      }
1144
1145         int sort = eDVBChannelQuery::tName;
1146                 /* check for "ORDER BY ..." */
1147
1148         std::list<std::string>::iterator it = tokens.begin();
1149         while (it != tokens.end())
1150         {
1151                 if (*it == "ORDER")
1152                 {
1153                         tokens.erase(it++);
1154                         if (it != tokens.end() && *it == "BY")
1155                         {
1156                                 tokens.erase(it++);
1157                                 sort = decodeType(*it);
1158                                 tokens.erase(it++);
1159                         } else
1160                                 sort = -1;
1161                 }
1162                 else if (*it == "FROM")
1163                 {
1164                         tokens.erase(it++);
1165                         if (it != tokens.end() && *it == "BOUQUET")
1166                         {
1167                                 tokens.erase(it++);
1168                                 bouquet_name = *it;
1169                                 tokens.erase(it++);
1170                         }
1171                         else if (it != tokens.end() && *it == "SATELLITES")
1172                                 tokens.erase(it++);
1173                         else if (it != tokens.end() && *it == "PROVIDERS")
1174                                 tokens.erase(it++);
1175                         else
1176                         {
1177                                 eDebug("FROM unknown %s", (*it).c_str());
1178                                 tokens.erase(it++);
1179                         }
1180                 }
1181                 else
1182                         ++it;
1183         }
1184
1185         if (sort == -1)
1186         {
1187                 eWarning("ORDER BY .. string invalid.");
1188                 res = 0;
1189                 return -1;
1190         }
1191
1192 //      eDebug("sort by %d", sort);
1193
1194                 /* now we recursivly parse that. */
1195         int r = parseExpression(res, tokens.begin(), tokens.end());
1196
1197         if (res)
1198         {
1199                 res->m_sort = sort;
1200                 res->m_bouquet_name = bouquet_name;
1201         }
1202
1203 //      eDebug("return: %d", r);
1204         return r;
1205 }
1206
1207 DEFINE_REF(eDVBChannelQuery);