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 eDVBService::eDVBService()
 111 {
 112 }
 113
 114 eDVBService::~eDVBService()
 115 {
 116 }
 117
 118 eDVBService &eDVBService::operator=(const eDVBService &s)
 119 {
 120         m_service_name = s.m_service_name;
 121         m_service_name_sort = s.m_service_name_sort;
 122         m_provider_name = s.m_provider_name;
 123         m_flags = s.m_flags;
 124         m_ca = s.m_ca;
 125         m_cache = s.m_cache;
 126         return *this;
 127 }
 128
 129 void eDVBService::genSortName()
 130 {
 131         m_service_name_sort = removeDVBChars(m_service_name);
 132         makeUpper(m_service_name_sort);
 133         while ((!m_service_name_sort.empty()) && m_service_name_sort[0] == ' ')
 134                 m_service_name_sort.erase(0, 1);
 135
 136                 /* put unnamed services at the end, not at the beginning. */
 137         if (m_service_name_sort.empty())
 138                 m_service_name_sort = "\xFF";
 139 }
 140
 141 RESULT eDVBService::getName(const eServiceReference &ref, std::string &name)
 142 {
 143         if (!ref.name.empty())
 144                 name = ref.name; // use renamed service name..
 145         else if (!m_service_name.empty())
 146                 name = m_service_name;
 147         else
 148                 name = "(...)";
 149         return 0;
 150 }
 151
 152 RESULT eDVBService::getEvent(const eServiceReference &ref, ePtr<eServiceEvent> &ptr, time_t start_time)
 153 {
 154         return eEPGCache::getInstance()->lookupEventTime(ref, start_time, ptr);
 155 }
 156
 157 bool eDVBService::isPlayable(const eServiceReference &ref, const eServiceReference &ignore)
 158 {
 159         ePtr<eDVBResourceManager> res_mgr;
 160         if ( eDVBResourceManager::getInstance( res_mgr ) )
 161                 eDebug("isPlayble... no res manager!!");
 162         else
 163         {
 164                 eDVBChannelID chid, chid_ignore;
 165                 ((const eServiceReferenceDVB&)ref).getChannelID(chid);
 166                 ((const eServiceReferenceDVB&)ignore).getChannelID(chid_ignore);
 167                 return res_mgr->canAllocateChannel(chid, chid_ignore);
 168         }
 169         return false;
 170 }
 171
 172 int eDVBService::checkFilter(const eServiceReferenceDVB &ref, const eDVBChannelQuery &query)
 173 {
 174         int res = 0;
 175         switch (query.m_type)
 176         {
 177         case eDVBChannelQuery::tName:
 178                 res = m_service_name_sort.find(query.m_string) != std::string::npos;
 179                 break;
 180         case eDVBChannelQuery::tProvider:
 181                 res = m_provider_name.find(query.m_string) != std::string::npos;
 182                 break;
 183         case eDVBChannelQuery::tType:
 184                 res = ref.getServiceType() == query.m_int;
 185                 break;
 186         case eDVBChannelQuery::tBouquet:
 187                 res = 0;
 188                 break;
 189         case eDVBChannelQuery::tSatellitePosition:
 190                 res = (ref.getDVBNamespace().get() >> 16) == query.m_int;
 191                 break;
 192         case eDVBChannelQuery::tChannelID:
 193         {
 194                 eDVBChannelID chid;
 195                 ref.getChannelID(chid);
 196                 res = chid == query.m_channelid;
 197                 break;
 198         }
 199         case eDVBChannelQuery::tAND:
 200                 res = checkFilter(ref, *query.m_p1) && checkFilter(ref, *query.m_p2);
 201                 break;
 202         case eDVBChannelQuery::tOR:
 203                 res = checkFilter(ref, *query.m_p1) || checkFilter(ref, *query.m_p2);
 204                 break;
 205         }
 206
 207         if (query.m_inverse)
 208                 return !res;
 209         else
 210                 return res;
 211 }
 212
 213 int eDVBService::getCachePID(cacheID id)
 214 {
 215         std::map<int, int>::iterator it = m_cache.find(id);
 216         if ( it != m_cache.end() )
 217                 return it->second;
 218         return -1;
 219 }
 220
 221 void eDVBService::setCachePID(cacheID id, int pid)
 222 {
 223         m_cache[id] = pid;
 224 }
 225
 226 DEFINE_REF(eDVBDB);
 227
 228         /* THIS CODE IS BAD. it should be replaced by somethine better. */
 229 void eDVBDB::load()
 230 {
 231         eDebug("---- opening lame channel db");
 232         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "rt");
 233         if (!f)
 234         {
 235                 struct stat s;
 236                 if ( !stat("lamedb", &s) )
 237                 {
 238                         rename("lamedb", CONFIGDIR"/enigma2/lamedb" );
 239                         load();
 240                 }
 241                 return;
 242         }
 243         char line[256];
 244         if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
 245         {
 246                 eDebug("not a servicefile");
 247                 fclose(f);
 248                 return;
 249         }
 250         eDebug("reading services");
 251         if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
 252         {
 253                 eDebug("services invalid, no transponders");
 254                 fclose(f);
 255                 return;
 256         }
 257
 258         // clear all transponders
 259
 260         while (!feof(f))
 261         {
 262                 if (!fgets(line, 256, f))
 263                         break;
 264                 if (!strcmp(line, "end\n"))
 265                         break;
 266                 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
 267                 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
 268                 if (original_network_id == -1)
 269                         continue;
 270                 eDVBChannelID channelid = eDVBChannelID(
 271                         eDVBNamespace(dvb_namespace),
 272                         eTransportStreamID(transport_stream_id),
 273                         eOriginalNetworkID(original_network_id));
 274
 275                 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
 276                 while (!feof(f))
 277                 {
 278                         fgets(line, 256, f);
 279                         if (!strcmp(line, "/\n"))
 280                                 break;
 281                         if (line[1]=='s')
 282                         {
 283                                 eDVBFrontendParametersSatellite sat;
 284                                 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion;
 285                                 sscanf(line+2, "%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &orbital_position, &inversion);
 286                                 sat.frequency = frequency;
 287                                 sat.symbol_rate = symbol_rate;
 288                                 sat.polarisation = polarisation;
 289                                 sat.fec = fec;
 290                                 sat.orbital_position =
 291                                         orbital_position < 0 ? orbital_position + 3600 : orbital_position;
 292                                 sat.inversion = inversion;
 293                                 feparm->setDVBS(sat);
 294                         } else if (line[1]=='t')
 295                         {
 296                                 eDVBFrontendParametersTerrestrial ter;
 297                                 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
 298                                 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);
 299                                 ter.frequency = frequency;
 300                                 ter.bandwidth = bandwidth;
 301                                 ter.code_rate_HP = code_rate_HP;
 302                                 ter.code_rate_LP = code_rate_LP;
 303                                 ter.modulation = modulation;
 304                                 ter.transmission_mode = transmission_mode;
 305                                 ter.guard_interval = guard_interval;
 306                                 ter.hierarchy = hierarchy;
 307                                 ter.inversion = inversion;
 308
 309                                 feparm->setDVBT(ter);
 310                         } else if (line[1]=='c')
 311                         {
 312                                 int frequency, symbol_rate, inversion=0, modulation=3;
 313                                 sscanf(line+2, "%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation);
 314 //                              t.setCable(frequency, symbol_rate, inversion, modulation);
 315                         }
 316                 }
 317                 addChannelToList(channelid, feparm);
 318         }
 319
 320         if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
 321         {
 322                 eDebug("services invalid, no services");
 323                 return;
 324         }
 325
 326         // clear all services
 327
 328         int count=0;
 329
 330         while (!feof(f))
 331         {
 332                 if (!fgets(line, 256, f))
 333                         break;
 334                 if (!strcmp(line, "end\n"))
 335                         break;
 336
 337                 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
 338                 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
 339                 if (service_number == -1)
 340                         continue;
 341                 ePtr<eDVBService> s = new eDVBService;
 342                 eServiceReferenceDVB ref =
 343                                                 eServiceReferenceDVB(
 344                                                 eDVBNamespace(dvb_namespace),
 345                                                 eTransportStreamID(transport_stream_id),
 346                                                 eOriginalNetworkID(original_network_id),
 347                                                 eServiceID(service_id),
 348                                                 service_type);
 349                 count++;
 350                 fgets(line, 256, f);
 351                 if (strlen(line))
 352                         line[strlen(line)-1]=0;
 353
 354                 s->m_service_name = line;
 355                 s->genSortName();
 356
 357                 fgets(line, 256, f);
 358                 if (strlen(line))
 359                         line[strlen(line)-1]=0;
 360
 361                 std::string str=line;
 362
 363                 if (str[1]!=':')        // old ... (only service_provider)
 364                 {
 365                         s->m_provider_name=line;
 366                 } else
 367                         while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
 368                         {
 369                                 unsigned int c=str.find(',');
 370                                 char p=str[0];
 371                                 std::string v;
 372                                 if (c == std::string::npos)
 373                                 {
 374                                         v=str.substr(2);
 375                                         str="";
 376                                 } else
 377                                 {
 378                                         v=str.substr(2, c-2);
 379                                         str=str.substr(c+1);
 380                                 }
 381 //                              eDebug("%c ... %s", p, v.c_str());
 382                                 if (p == 'p')
 383                                         s->m_provider_name=v;
 384                                 else if (p == 'f')
 385                                 {
 386                                         sscanf(v.c_str(), "%x", &s->m_flags);
 387                                 } else if (p == 'c')
 388                                 {
 389                                         int cid, val;
 390                                         sscanf(v.c_str(), "%02d%04x", &cid, &val);
 391                                         s->m_cache[cid]=val;
 392                                 } else if (p == 'C')
 393                                 {
 394                                         int val;
 395                                         sscanf(v.c_str(), "%04x", &val);
 396                                         s->m_ca.insert(val);
 397                                 }
 398                         }
 399                 addService(ref, s);
 400         }
 401
 402         eDebug("loaded %d services", count);
 403
 404         fclose(f);
 405 }
 406
 407 void eDVBDB::save()
 408 {
 409         eDebug("---- saving lame channel db");
 410         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "w");
 411         int channels=0, services=0;
 412         if (!f)
 413                 eFatal("couldn't save lame channel db!");
 414         fprintf(f, "eDVB services /3/\n");
 415         fprintf(f, "transponders\n");
 416         for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
 417                         i != m_channels.end(); ++i)
 418         {
 419                 const eDVBChannelID &chid = i->first;
 420                 const channel &ch = i->second;
 421
 422                 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
 423                                 chid.transport_stream_id.get(), chid.original_network_id.get());
 424                 eDVBFrontendParametersSatellite sat;
 425                 eDVBFrontendParametersTerrestrial ter;
 426                 if (!ch.m_frontendParameters->getDVBS(sat))
 427                 {
 428                         fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
 429                                 sat.frequency, sat.symbol_rate,
 430                                 sat.polarisation, sat.fec,
 431                                 sat.orbital_position > 1800 ? sat.orbital_position - 3600 : sat.orbital_position,
 432                                 sat.inversion);
 433                 }
 434                 if (!ch.m_frontendParameters->getDVBT(ter))
 435                 {
 436                         fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 437                                 ter.frequency, ter.bandwidth, ter.code_rate_HP,
 438                                 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
 439                                 ter.guard_interval, ter.hierarchy, ter.inversion);
 440                 }
 441                 fprintf(f, "/\n");
 442                 channels++;
 443         }
 444         fprintf(f, "end\nservices\n");
 445
 446         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
 447                 i != m_services.end(); ++i)
 448         {
 449                 const eServiceReferenceDVB &s = i->first;
 450                 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
 451                                 s.getServiceID().get(), s.getDVBNamespace().get(),
 452                                 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
 453                                 s.getServiceType(),
 454                                 0);
 455
 456                 fprintf(f, "%s\n", i->second->m_service_name.c_str());
 457                 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
 458
 459                 // write cached pids
 460                 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
 461                         ca != i->second->m_cache.end(); ++ca)
 462                         fprintf(f, ",c:%02d%04x", ca->first, ca->second);
 463
 464                 // write cached ca pids
 465                 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
 466                         ca != i->second->m_ca.end(); ++ca)
 467                         fprintf(f, ",C:%04x", *ca);
 468
 469                 fprintf(f, "\n");
 470                 services++;
 471         }
 472         fprintf(f, "end\nHave a lot of bugs!\n");
 473         eDebug("saved %d channels and %d services!", channels, services);
 474         fclose(f);
 475 }
 476
 477 void eDVBDB::loadBouquet(const char *path)
 478 {
 479         std::string bouquet_name = path;
 480         if (!bouquet_name.length())
 481         {
 482                 eDebug("Bouquet load failed.. no path given..");
 483                 return;
 484         }
 485         unsigned int pos = bouquet_name.rfind('/');
 486         if ( pos != std::string::npos )
 487                 bouquet_name.erase(0, pos+1);
 488         if (bouquet_name.empty())
 489         {
 490                 eDebug("Bouquet load failed.. no filename given..");
 491                 return;
 492         }
 493         eBouquet &bouquet = m_bouquets[bouquet_name];
 494         bouquet.m_filename = bouquet_name;
 495         std::list<eServiceReference> &list = bouquet.m_services;
 496         list.clear();
 497
 498         std::string p = CONFIGDIR"/enigma2/";
 499         p+=path;
 500         eDebug("loading bouquet... %s", p.c_str());
 501         FILE *fp=fopen(p.c_str(), "rt");
 502         int entries=0;
 503         if (!fp)
 504         {
 505                 struct stat s;
 506                 if ( !stat(path, &s) )
 507                 {
 508                         rename(path, p.c_str() );
 509                         loadBouquet(path);
 510                         return;
 511                 }
 512                 eDebug("failed to open.");
 513                 if ( strstr(path, "bouquets.tv") )
 514                 {
 515                         eDebug("recreate bouquets.tv");
 516                         bouquet.m_bouquet_name="Bouquets (TV)";
 517                         bouquet.flushChanges();
 518                 }
 519                 else if ( strstr(path, "bouquets.radio") )
 520                 {
 521                         eDebug("recreate bouquets.radio");
 522                         bouquet.m_bouquet_name="Bouquets (Radio)";
 523                         bouquet.flushChanges();
 524                 }
 525                 return;
 526         }
 527         char line[256];
 528         bool read_descr=false;
 529         eServiceReference *e = NULL;
 530         while (1)
 531         {
 532                 if (!fgets(line, 256, fp))
 533                         break;
 534                 line[strlen(line)-1]=0;
 535                 if (strlen(line) && line[strlen(line)-1]=='\r')
 536                         line[strlen(line)-1]=0;
 537                 if (!line[0])
 538                         break;
 539                 if (line[0]=='#')
 540                 {
 541                         if (!strncmp(line, "#SERVICE ", 9) || !strncmp(line, "#SERVICE: ", 10))
 542                         {
 543                                 int offs = line[8] == ':' ? 10 : 9;
 544                                 eServiceReference tmp(line+offs);
 545                                 if (tmp.type != eServiceReference::idDVB)
 546                                 {
 547                                         eDebug("only DVB Bouquets supported");
 548                                         continue;
 549                                 }
 550                                 if ( (tmp.flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
 551                                 {
 552                                         unsigned int pos = tmp.path.rfind('/');
 553                                         if ( pos != std::string::npos )
 554                                                 tmp.path.erase(0, pos+1);
 555                                         if (tmp.path.empty())
 556                                         {
 557                                                 eDebug("Bouquet load failed.. no filename given..");
 558                                                 continue;
 559                                         }
 560                                         loadBouquet(tmp.path.c_str());
 561                                         char buf[256];
 562                                         snprintf(buf, 256, "(type == %d) FROM BOUQUET \"%s\" ORDER BY bouquet", tmp.data[0], tmp.path.c_str());
 563                                         tmp.path = buf;
 564                                 }
 565                                 list.push_back(tmp);
 566                                 e = &list.back();
 567                                 read_descr=true;
 568                                 ++entries;
 569                         }
 570                         else if (read_descr && !strncmp(line, "#DESCRIPTION ", 13))
 571                         {
 572                                 e->name = line+13;
 573                                 read_descr=false;
 574                         }
 575                         else if (!strncmp(line, "#NAME ", 6))
 576                                 bouquet.m_bouquet_name=line+6;
 577                         continue;
 578                 }
 579         }
 580         fclose(fp);
 581         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 582 }
 583
 584 void eDVBDB::loadBouquets()
 585 {
 586         loadBouquet("bouquets.tv");
 587         loadBouquet("bouquets.radio");
 588 // create default bouquets when missing
 589         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 590         {
 591                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 592                 b.m_filename = "userbouquet.favourites.tv";
 593                 b.m_bouquet_name = "Favourites (TV)";
 594                 b.flushChanges();
 595                 eServiceReference ref;
 596                 memset(ref.data, 0, sizeof(ref.data));
 597                 ref.type=1;
 598                 ref.flags=7;
 599                 ref.data[0]=1;
 600                 ref.path="(type == 1) FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 601                 eBouquet &parent = m_bouquets["bouquets.tv"];
 602                 parent.m_services.push_back(ref);
 603                 parent.flushChanges();
 604         }
 605         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 606         {
 607                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 608                 b.m_filename = "userbouquet.favourites.radio";
 609                 b.m_bouquet_name = "Favourites (Radio)";
 610                 b.flushChanges();
 611                 eServiceReference ref;
 612                 memset(ref.data, 0, sizeof(ref.data));
 613                 ref.type=1;
 614                 ref.flags=7;
 615                 ref.data[0]=1;
 616                 ref.path="(type == 2) FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 617                 eBouquet &parent = m_bouquets["bouquets.radio"];
 618                 parent.m_services.push_back(ref);
 619                 parent.flushChanges();
 620         }
 621 }
 622
 623 eDVBDB::eDVBDB()
 624 {
 625         load();
 626         loadBouquets();
 627 }
 628
 629 eDVBDB::~eDVBDB()
 630 {
 631 //      save();
 632 }
 633
 634 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 635 {
 636         channel ch;
 637         assert(feparm);
 638         ch.m_frontendParameters = feparm;
 639         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 640         return 0;
 641 }
 642
 643 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 644 {
 645         m_channels.erase(id);
 646         return 0;
 647 }
 648
 649 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 650 {
 651         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 652         if (i == m_channels.end())
 653         {
 654                 parm = 0;
 655                 return -ENOENT;
 656         }
 657         parm = i->second.m_frontendParameters;
 658         return 0;
 659 }
 660
 661 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 662 {
 663         m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 664         return 0;
 665 }
 666
 667 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 668 {
 669         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 670         i = m_services.find(reference);
 671         if (i == m_services.end())
 672         {
 673                 service = 0;
 674                 return -ENOENT;
 675         }
 676         service = i->second;
 677         return 0;
 678 }
 679
 680 RESULT eDVBDB::flush()
 681 {
 682         save();
 683         return 0;
 684 }
 685
 686 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 687 {
 688         std::string str = ref.path;
 689         if (str.empty())
 690         {
 691                 eDebug("getBouquet failed.. no path given!");
 692                 return -1;
 693         }
 694         unsigned int pos = str.find("FROM BOUQUET \"");
 695         if ( pos != std::string::npos )
 696         {
 697                 str.erase(0, pos+14);
 698                 pos = str.find('"');
 699                 if ( pos != std::string::npos )
 700                         str.erase(pos);
 701                 else
 702                         str.clear();
 703         }
 704         if (str.empty())
 705         {
 706                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 707                 return -1;
 708         }
 709         std::map<std::string, eBouquet>::iterator i =
 710                 m_bouquets.find(str);
 711         if (i == m_bouquets.end())
 712         {
 713                 bouquet = 0;
 714                 return -ENOENT;
 715         }
 716         bouquet = &i->second;
 717         return 0;
 718 }
 719
 720 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 721 {
 722         if ( source.path.find("FROM") != std::string::npos )
 723         {
 724                 if ( source.path.find("BOUQUET") != std::string::npos )
 725                         query = new eDVBDBBouquetQuery(this, source, q);
 726                 else if ( source.path.find("SATELLITES") != std::string::npos )
 727                         query = new eDVBDBSatellitesQuery(this, source, q);
 728                 else if ( source.path.find("PROVIDERS") != std::string::npos )
 729                         query = new eDVBDBProvidersQuery(this, source, q);
 730                 else
 731                         eFatal("invalid query %s", source.toString().c_str());
 732         }
 733         else
 734                 query = new eDVBDBQuery(this, source, q);
 735         return 0;
 736 }
 737
 738 DEFINE_REF(eDVBDBQueryBase);
 739
 740 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 741         :m_db(db), m_query(query), m_source(source)
 742 {
 743 }
 744
 745 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 746 {
 747         ePtr<eDVBService> a_service, b_service;
 748
 749         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
 750
 751         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
 752         {
 753                 if (m_db->getService(a, a_service))
 754                         return 1;
 755                 if (m_db->getService(b, b_service))
 756                         return 1;
 757         }
 758
 759         switch (sortmode)
 760         {
 761         case eDVBChannelQuery::tName:
 762                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
 763         case eDVBChannelQuery::tProvider:
 764                 return a_service->m_provider_name < b_service->m_provider_name;
 765         case eDVBChannelQuery::tType:
 766                 return a.getServiceType() < b.getServiceType();
 767         case eDVBChannelQuery::tBouquet:
 768                 return 0;
 769         case eDVBChannelQuery::tSatellitePosition:
 770                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
 771         default:
 772                 return 1;
 773         }
 774         return 0;
 775 }
 776
 777 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 778         :eDVBDBQueryBase(db, source, query)
 779 {
 780         m_cursor = m_db->m_services.begin();
 781 }
 782
 783 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
 784 {
 785         while (m_cursor != m_db->m_services.end())
 786         {
 787                 ref = m_cursor->first;
 788
 789                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
 790
 791                 ++m_cursor;
 792
 793                 if (res)
 794                         return 0;
 795         }
 796
 797         ref.type = eServiceReference::idInvalid;
 798
 799         return 1;
 800 }
 801
 802 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 803         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
 804 {
 805 }
 806
 807 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
 808 {
 809         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
 810         std::list<eServiceReference> &list = bouquet.m_services;
 811         while (m_cursor != list.end())
 812         {
 813                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
 814
 815                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
 816                         m_db->m_services.find(ref);
 817
 818                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
 819
 820                 ++m_cursor;
 821
 822                 if (res)
 823                         return 0;
 824         }
 825
 826         ref.type = eServiceReference::idInvalid;
 827
 828         return 1;
 829 }
 830
 831 eDVBDBListQuery::eDVBDBListQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 832         :eDVBDBQueryBase(db, source, query), m_cursor(m_list.end())
 833 {
 834 }
 835
 836 RESULT eDVBDBListQuery::getNextResult(eServiceReferenceDVB &ref)
 837 {
 838         if (m_cursor != m_list.end())
 839         {
 840                 ref = *m_cursor++;
 841                 return 0;
 842         }
 843         ref.type = eServiceReference::idInvalid;
 844         return 1;
 845 }
 846
 847 int eDVBDBListQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 848 {
 849         if ( m_query->m_sort == eDVBChannelQuery::tSatellitePosition )
 850         {
 851                 int x = (a.getDVBNamespace().get() >> 16);
 852                 int y = (b.getDVBNamespace().get() >> 16);
 853                 if ( x > 1800 )
 854                         x -= 3600;
 855                 if ( y > 1800 )
 856                         y -= 3600;
 857                 return x < y;
 858         }
 859         return a.name < b.name;
 860 }
 861
 862 eDVBDBSatellitesQuery::eDVBDBSatellitesQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 863         :eDVBDBListQuery(db, source, query)
 864 {
 865         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
 866                 it != m_db->m_services.end(); ++it)
 867         {
 868                 int res = it->second->checkFilter(it->first, *query);
 869                 if (res)
 870                 {
 871                         unsigned int dvbnamespace = it->first.getDVBNamespace().get()&0xFFFF0000;
 872                         bool found=0;
 873                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
 874                                 if ( (i->getDVBNamespace().get()&0xFFFF0000) == dvbnamespace )
 875                                 {
 876                                         found=true;
 877                                         break;
 878                                 }
 879                         if (!found)
 880                         {
 881                                 eServiceReferenceDVB ref;
 882                                 ref.setDVBNamespace(dvbnamespace);
 883                                 ref.flags=eServiceReference::flagDirectory;
 884                                 char buf[64];
 885                                 snprintf(buf, 64, "(satellitePosition == %d) && ", dvbnamespace>>16);
 886
 887                                 ref.path=buf+source.path;
 888                                 unsigned int pos=ref.path.find("FROM");
 889                                 ref.path.erase(pos);
 890                                 ref.path+="ORDER BY name";
 891 //                              eDebug("ref.path now %s", ref.path.c_str());
 892                                 m_list.push_back(ref);
 893
 894                                 ref.path=buf+source.path;
 895                                 pos=ref.path.find("FROM");
 896                                 ref.path.erase(pos+5);
 897                                 ref.path+="PROVIDERS ORDER BY name";
 898 //                              eDebug("ref.path now %s", ref.path.c_str());
 899                                 m_list.push_back(ref);
 900                         }
 901                 }
 902         }
 903         m_cursor=m_list.begin();
 904 }
 905
 906 eDVBDBProvidersQuery::eDVBDBProvidersQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 907         :eDVBDBListQuery(db, source, query)
 908 {
 909         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
 910                 it != m_db->m_services.end(); ++it)
 911         {
 912                 int res = it->second->checkFilter(it->first, *query);
 913                 if (res)
 914                 {
 915                         bool found=0;
 916
 917                         const char *provider_name = it->second->m_provider_name.length() ?
 918                                 it->second->m_provider_name.c_str() :
 919                                 "Unknown";
 920
 921                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
 922                                 if (i->name == provider_name)
 923                                 {
 924                                         found=true;
 925                                         break;
 926                                 }
 927                         if (!found)
 928                         {
 929                                 eServiceReferenceDVB ref;
 930                                 char buf[64];
 931                                 ref.name=provider_name;
 932                                 snprintf(buf, 64, "(provider == \"%s\") && ", provider_name);
 933                                 ref.path=buf+source.path;
 934                                 unsigned int pos = ref.path.find("FROM");
 935                                 ref.flags=eServiceReference::flagDirectory;
 936                                 ref.path.erase(pos);
 937                                 ref.path+="ORDER BY name";
 938 //                              eDebug("ref.path now %s", ref.path.c_str());
 939                                 m_list.push_back(ref);
 940                         }
 941                 }
 942         }
 943         m_cursor=m_list.begin();
 944 }
 945
 946 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
 947
 948 static int decodeType(const std::string &type)
 949 {
 950         if (type == "name")
 951                 return eDVBChannelQuery::tName;
 952         else if (type == "provider")
 953                 return eDVBChannelQuery::tProvider;
 954         else if (type == "type")
 955                 return eDVBChannelQuery::tType;
 956         else if (type == "bouquet")
 957                 return eDVBChannelQuery::tBouquet;
 958         else if (type == "satellitePosition")
 959                 return eDVBChannelQuery::tSatellitePosition;
 960         else if (type == "channelID")
 961                 return eDVBChannelQuery::tChannelID;
 962         else
 963                 return -1;
 964 }
 965
 966         /* never, NEVER write a parser in C++! */
 967 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
 968 {
 969         std::list<std::string>::const_iterator end_of_exp;
 970         if (*begin == "(")
 971         {
 972                 end_of_exp = begin;
 973                 while (end_of_exp != end)
 974                         if (*end_of_exp == ")")
 975                                 break;
 976                         else
 977                                 ++end_of_exp;
 978
 979                 if (end_of_exp == end)
 980                 {
 981                         eDebug("expression parse: end of expression while searching for closing brace");
 982                         return -1;
 983                 }
 984
 985                 ++begin;
 986                 // begin..end_of_exp
 987                 int r = parseExpression(res, begin, end_of_exp);
 988                 if (r)
 989                         return r;
 990                 ++end_of_exp;
 991
 992                         /* we had only one sub expression */
 993                 if (end_of_exp == end)
 994                 {
 995 //                      eDebug("only one sub expression");
 996                         return 0;
 997                 }
 998
 999                         /* otherwise we have an operator here.. */
1000
1001                 ePtr<eDVBChannelQuery> r2 = res;
1002                 res = new eDVBChannelQuery();
1003                 res->m_sort = 0;
1004                 res->m_p1 = r2;
1005                 res->m_inverse = 0;
1006                 r2 = 0;
1007
1008                 if (*end_of_exp == "||")
1009                         res->m_type = eDVBChannelQuery::tOR;
1010                 else if (*end_of_exp == "&&")
1011                         res->m_type = eDVBChannelQuery::tAND;
1012                 else
1013                 {
1014                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
1015                         res = 0;
1016                         return 1;
1017                 }
1018
1019                 ++end_of_exp;
1020
1021                 return parseExpression(res->m_p2, end_of_exp, end);
1022         }
1023
1024         // "begin" <op> "end"
1025         std::string type, op, val;
1026
1027         res = new eDVBChannelQuery();
1028         res->m_sort = 0;
1029
1030         int cnt = 0;
1031         while (begin != end)
1032         {
1033                 switch (cnt)
1034                 {
1035                 case 0:
1036                         type = *begin;
1037                         break;
1038                 case 1:
1039                         op = *begin;
1040                         break;
1041                 case 2:
1042                         val = *begin;
1043                         break;
1044                 case 3:
1045                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
1046                         return 1;
1047                 }
1048                 ++begin;
1049                 ++cnt;
1050         }
1051
1052         if (cnt != 3)
1053         {
1054                 eDebug("malformed query: missing stuff");
1055                 res = 0;
1056                 return 1;
1057         }
1058
1059         res->m_type = decodeType(type);
1060
1061         if (res->m_type == -1)
1062         {
1063                 eDebug("malformed query: invalid type %s", type.c_str());
1064                 res = 0;
1065                 return 1;
1066         }
1067
1068         if (op == "==")
1069                 res->m_inverse = 0;
1070         else if (op == "!=")
1071                 res->m_inverse = 1;
1072         else
1073         {
1074                 eDebug("invalid operator %s", op.c_str());
1075                 res = 0;
1076                 return 1;
1077         }
1078
1079         res->m_string = val;
1080         res->m_int = atoi(val.c_str());
1081 //      res->m_channelid = eDVBChannelID(val);
1082
1083         return 0;
1084 }
1085
1086 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
1087 {
1088         std::list<std::string> tokens;
1089
1090         std::string current_token;
1091         std::string bouquet_name;
1092
1093 //      eDebug("splitting %s....", query.c_str());
1094         unsigned int i = 0;
1095         const char *splitchars="()";
1096         int quotemode = 0, lastsplit = 0, lastalnum = 0;
1097         while (i <= query.size())
1098         {
1099                 int c = (i < query.size()) ? query[i] : ' ';
1100                 ++i;
1101
1102                 int issplit = !!strchr(splitchars, c);
1103                 int isaln = isalnum(c);
1104                 int iswhite = c == ' ';
1105                 int isquot = c == '\"';
1106
1107                 if (quotemode)
1108                 {
1109                         iswhite = issplit = 0;
1110                         isaln = lastalnum;
1111                 }
1112
1113                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
1114                 {
1115                         if (current_token.size())
1116                                 tokens.push_back(current_token);
1117                         current_token.clear();
1118                 }
1119
1120                 if (!(iswhite || isquot))
1121                         current_token += c;
1122
1123                 if (isquot)
1124                         quotemode = !quotemode;
1125                 lastsplit = issplit;
1126                 lastalnum = isaln;
1127         }
1128
1129 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
1130 //      {
1131 //              printf("%s\n", a->c_str());
1132 //      }
1133
1134         int sort = eDVBChannelQuery::tName;
1135                 /* check for "ORDER BY ..." */
1136
1137         std::list<std::string>::iterator it = tokens.begin();
1138         while (it != tokens.end())
1139         {
1140                 if (*it == "ORDER")
1141                 {
1142                         tokens.erase(it++);
1143                         if (it != tokens.end() && *it == "BY")
1144                         {
1145                                 tokens.erase(it++);
1146                                 sort = decodeType(*it);
1147                                 tokens.erase(it++);
1148                         } else
1149                                 sort = -1;
1150                 }
1151                 else if (*it == "FROM")
1152                 {
1153                         tokens.erase(it++);
1154                         if (it != tokens.end() && *it == "BOUQUET")
1155                         {
1156                                 tokens.erase(it++);
1157                                 bouquet_name = *it;
1158                                 tokens.erase(it++);
1159                         }
1160                         else if (it != tokens.end() && *it == "SATELLITES")
1161                                 tokens.erase(it++);
1162                         else if (it != tokens.end() && *it == "PROVIDERS")
1163                                 tokens.erase(it++);
1164                         else
1165                         {
1166                                 eDebug("FROM unknown %s", (*it).c_str());
1167                                 tokens.erase(it++);
1168                         }
1169                 }
1170                 else
1171                         ++it;
1172         }
1173
1174         if (sort == -1)
1175         {
1176                 eWarning("ORDER BY .. string invalid.");
1177                 res = 0;
1178                 return -1;
1179         }
1180
1181 //      eDebug("sort by %d", sort);
1182
1183                 /* now we recursivly parse that. */
1184         int r = parseExpression(res, tokens.begin(), tokens.end());
1185
1186         if (res)
1187         {
1188                 res->m_sort = sort;
1189                 res->m_bouquet_name = bouquet_name;
1190         }
1191
1192 //      eDebug("return: %d", r);
1193         return r;
1194 }
1195
1196 DEFINE_REF(eDVBChannelQuery);