code.vuplus.com Git - vuplus_dvbapp/blob - 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         if (pid == -1)
 224                 m_cache.erase(id);
 225         else
 226                 m_cache[id] = pid;
 227 }
 228
 229 DEFINE_REF(eDVBDB);
 230
 231         /* THIS CODE IS BAD. it should be replaced by somethine better. */
 232 void eDVBDB::load()
 233 {
 234         eDebug("---- opening lame channel db");
 235         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "rt");
 236         if (!f)
 237         {
 238                 struct stat s;
 239                 if ( !stat("lamedb", &s) )
 240                 {
 241                         rename("lamedb", CONFIGDIR"/enigma2/lamedb" );
 242                         load();
 243                 }
 244                 return;
 245         }
 246         char line[256];
 247         if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
 248         {
 249                 eDebug("not a servicefile");
 250                 fclose(f);
 251                 return;
 252         }
 253         eDebug("reading services");
 254         if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
 255         {
 256                 eDebug("services invalid, no transponders");
 257                 fclose(f);
 258                 return;
 259         }
 260
 261         // clear all transponders
 262
 263         while (!feof(f))
 264         {
 265                 if (!fgets(line, 256, f))
 266                         break;
 267                 if (!strcmp(line, "end\n"))
 268                         break;
 269                 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
 270                 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
 271                 if (original_network_id == -1)
 272                         continue;
 273                 eDVBChannelID channelid = eDVBChannelID(
 274                         eDVBNamespace(dvb_namespace),
 275                         eTransportStreamID(transport_stream_id),
 276                         eOriginalNetworkID(original_network_id));
 277
 278                 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
 279                 while (!feof(f))
 280                 {
 281                         fgets(line, 256, f);
 282                         if (!strcmp(line, "/\n"))
 283                                 break;
 284                         if (line[1]=='s')
 285                         {
 286                                 eDVBFrontendParametersSatellite sat;
 287                                 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion;
 288                                 sscanf(line+2, "%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &orbital_position, &inversion);
 289                                 sat.frequency = frequency;
 290                                 sat.symbol_rate = symbol_rate;
 291                                 sat.polarisation = polarisation;
 292                                 sat.fec = fec;
 293                                 sat.orbital_position =
 294                                         orbital_position < 0 ? orbital_position + 3600 : orbital_position;
 295                                 sat.inversion = inversion;
 296                                 feparm->setDVBS(sat);
 297                         } else if (line[1]=='t')
 298                         {
 299                                 eDVBFrontendParametersTerrestrial ter;
 300                                 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
 301                                 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);
 302                                 ter.frequency = frequency;
 303                                 ter.bandwidth = bandwidth;
 304                                 ter.code_rate_HP = code_rate_HP;
 305                                 ter.code_rate_LP = code_rate_LP;
 306                                 ter.modulation = modulation;
 307                                 ter.transmission_mode = transmission_mode;
 308                                 ter.guard_interval = guard_interval;
 309                                 ter.hierarchy = hierarchy;
 310                                 ter.inversion = inversion;
 311
 312                                 feparm->setDVBT(ter);
 313                         } else if (line[1]=='c')
 314                         {
 315                                 int frequency, symbol_rate, inversion=0, modulation=3;
 316                                 sscanf(line+2, "%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation);
 317 //                              t.setCable(frequency, symbol_rate, inversion, modulation);
 318                         }
 319                 }
 320                 addChannelToList(channelid, feparm);
 321         }
 322
 323         if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
 324         {
 325                 eDebug("services invalid, no services");
 326                 return;
 327         }
 328
 329         // clear all services
 330
 331         int count=0;
 332
 333         while (!feof(f))
 334         {
 335                 if (!fgets(line, 256, f))
 336                         break;
 337                 if (!strcmp(line, "end\n"))
 338                         break;
 339
 340                 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
 341                 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
 342                 if (service_number == -1)
 343                         continue;
 344                 ePtr<eDVBService> s = new eDVBService;
 345                 eServiceReferenceDVB ref =
 346                                                 eServiceReferenceDVB(
 347                                                 eDVBNamespace(dvb_namespace),
 348                                                 eTransportStreamID(transport_stream_id),
 349                                                 eOriginalNetworkID(original_network_id),
 350                                                 eServiceID(service_id),
 351                                                 service_type);
 352                 count++;
 353                 fgets(line, 256, f);
 354                 if (strlen(line))
 355                         line[strlen(line)-1]=0;
 356
 357                 s->m_service_name = line;
 358                 s->genSortName();
 359
 360                 fgets(line, 256, f);
 361                 if (strlen(line))
 362                         line[strlen(line)-1]=0;
 363                 std::string str=line;
 364
 365                 if (str[1]!=':')        // old ... (only service_provider)
 366                 {
 367                         s->m_provider_name=line;
 368                 } else
 369                         while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
 370                         {
 371                                 unsigned int c=str.find(',');
 372                                 char p=str[0];
 373                                 std::string v;
 374                                 if (c == std::string::npos)
 375                                 {
 376                                         v=str.substr(2);
 377                                         str="";
 378                                 } else
 379                                 {
 380                                         v=str.substr(2, c-2);
 381                                         str=str.substr(c+1);
 382                                 }
 383 //                              eDebug("%c ... %s", p, v.c_str());
 384                                 if (p == 'p')
 385                                         s->m_provider_name=v;
 386                                 else if (p == 'f')
 387                                 {
 388                                         sscanf(v.c_str(), "%x", &s->m_flags);
 389                                 } else if (p == 'c')
 390                                 {
 391                                         int cid, val;
 392                                         sscanf(v.c_str(), "%02d%04x", &cid, &val);
 393                                         s->m_cache[cid]=val;
 394                                 } else if (p == 'C')
 395                                 {
 396                                         int val;
 397                                         sscanf(v.c_str(), "%04x", &val);
 398                                         s->m_ca.insert(val);
 399                                 }
 400                         }
 401                 addService(ref, s);
 402         }
 403
 404         eDebug("loaded %d services", count);
 405
 406         fclose(f);
 407 }
 408
 409 void eDVBDB::save()
 410 {
 411         eDebug("---- saving lame channel db");
 412         FILE *f=fopen(CONFIGDIR"/enigma2/lamedb", "w");
 413         int channels=0, services=0;
 414         if (!f)
 415                 eFatal("couldn't save lame channel db!");
 416         fprintf(f, "eDVB services /3/\n");
 417         fprintf(f, "transponders\n");
 418         for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
 419                         i != m_channels.end(); ++i)
 420         {
 421                 const eDVBChannelID &chid = i->first;
 422                 const channel &ch = i->second;
 423
 424                 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
 425                                 chid.transport_stream_id.get(), chid.original_network_id.get());
 426                 eDVBFrontendParametersSatellite sat;
 427                 eDVBFrontendParametersTerrestrial ter;
 428                 if (!ch.m_frontendParameters->getDVBS(sat))
 429                 {
 430                         fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
 431                                 sat.frequency, sat.symbol_rate,
 432                                 sat.polarisation, sat.fec,
 433                                 sat.orbital_position > 1800 ? sat.orbital_position - 3600 : sat.orbital_position,
 434                                 sat.inversion);
 435                 }
 436                 if (!ch.m_frontendParameters->getDVBT(ter))
 437                 {
 438                         fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 439                                 ter.frequency, ter.bandwidth, ter.code_rate_HP,
 440                                 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
 441                                 ter.guard_interval, ter.hierarchy, ter.inversion);
 442                 }
 443                 fprintf(f, "/\n");
 444                 channels++;
 445         }
 446         fprintf(f, "end\nservices\n");
 447
 448         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
 449                 i != m_services.end(); ++i)
 450         {
 451                 const eServiceReferenceDVB &s = i->first;
 452                 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
 453                                 s.getServiceID().get(), s.getDVBNamespace().get(),
 454                                 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
 455                                 s.getServiceType(),
 456                                 0);
 457
 458                 fprintf(f, "%s\n", i->second->m_service_name.c_str());
 459                 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
 460
 461                 // write cached pids
 462                 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
 463                         ca != i->second->m_cache.end(); ++ca)
 464                         fprintf(f, ",c:%02d%04x", ca->first, ca->second);
 465
 466                 // write cached ca pids
 467                 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
 468                         ca != i->second->m_ca.end(); ++ca)
 469                         fprintf(f, ",C:%04x", *ca);
 470
 471                 fprintf(f, "\n");
 472                 services++;
 473         }
 474         fprintf(f, "end\nHave a lot of bugs!\n");
 475         eDebug("saved %d channels and %d services!", channels, services);
 476         fclose(f);
 477 }
 478
 479 void eDVBDB::loadBouquet(const char *path)
 480 {
 481         std::string bouquet_name = path;
 482         if (!bouquet_name.length())
 483         {
 484                 eDebug("Bouquet load failed.. no path given..");
 485                 return;
 486         }
 487         unsigned int pos = bouquet_name.rfind('/');
 488         if ( pos != std::string::npos )
 489                 bouquet_name.erase(0, pos+1);
 490         if (bouquet_name.empty())
 491         {
 492                 eDebug("Bouquet load failed.. no filename given..");
 493                 return;
 494         }
 495         eBouquet &bouquet = m_bouquets[bouquet_name];
 496         bouquet.m_filename = bouquet_name;
 497         std::list<eServiceReference> &list = bouquet.m_services;
 498         list.clear();
 499
 500         std::string p = CONFIGDIR"/enigma2/";
 501         p+=path;
 502         eDebug("loading bouquet... %s", p.c_str());
 503         FILE *fp=fopen(p.c_str(), "rt");
 504         int entries=0;
 505         if (!fp)
 506         {
 507                 struct stat s;
 508                 if ( !stat(path, &s) )
 509                 {
 510                         rename(path, p.c_str() );
 511                         loadBouquet(path);
 512                         return;
 513                 }
 514                 eDebug("failed to open.");
 515                 if ( strstr(path, "bouquets.tv") )
 516                 {
 517                         eDebug("recreate bouquets.tv");
 518                         bouquet.m_bouquet_name="Bouquets (TV)";
 519                         bouquet.flushChanges();
 520                 }
 521                 else if ( strstr(path, "bouquets.radio") )
 522                 {
 523                         eDebug("recreate bouquets.radio");
 524                         bouquet.m_bouquet_name="Bouquets (Radio)";
 525                         bouquet.flushChanges();
 526                 }
 527                 return;
 528         }
 529         char line[256];
 530         bool read_descr=false;
 531         eServiceReference *e = NULL;
 532         while (1)
 533         {
 534                 if (!fgets(line, 256, fp))
 535                         break;
 536                 line[strlen(line)-1]=0;
 537                 if (strlen(line) && line[strlen(line)-1]=='\r')
 538                         line[strlen(line)-1]=0;
 539                 if (!line[0])
 540                         break;
 541                 if (line[0]=='#')
 542                 {
 543                         if (!strncmp(line, "#SERVICE ", 9) || !strncmp(line, "#SERVICE: ", 10))
 544                         {
 545                                 int offs = line[8] == ':' ? 10 : 9;
 546                                 eServiceReference tmp(line+offs);
 547                                 if (tmp.type != eServiceReference::idDVB)
 548                                 {
 549                                         eDebug("only DVB Bouquets supported");
 550                                         continue;
 551                                 }
 552                                 if ( (tmp.flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
 553                                 {
 554                                         unsigned int pos = tmp.path.rfind('/');
 555                                         if ( pos != std::string::npos )
 556                                                 tmp.path.erase(0, pos+1);
 557                                         if (tmp.path.empty())
 558                                         {
 559                                                 eDebug("Bouquet load failed.. no filename given..");
 560                                                 continue;
 561                                         }
 562                                         loadBouquet(tmp.path.c_str());
 563                                         char buf[256];
 564                                         snprintf(buf, 256, "(type == %d) FROM BOUQUET \"%s\" ORDER BY bouquet", tmp.data[0], tmp.path.c_str());
 565                                         tmp.path = buf;
 566                                 }
 567                                 list.push_back(tmp);
 568                                 e = &list.back();
 569                                 read_descr=true;
 570                                 ++entries;
 571                         }
 572                         else if (read_descr && !strncmp(line, "#DESCRIPTION ", 13))
 573                         {
 574                                 e->name = line+13;
 575                                 read_descr=false;
 576                         }
 577                         else if (!strncmp(line, "#NAME ", 6))
 578                                 bouquet.m_bouquet_name=line+6;
 579                         continue;
 580                 }
 581         }
 582         fclose(fp);
 583         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 584 }
 585
 586 void eDVBDB::loadBouquets()
 587 {
 588         loadBouquet("bouquets.tv");
 589         loadBouquet("bouquets.radio");
 590 // create default bouquets when missing
 591         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 592         {
 593                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 594                 b.m_filename = "userbouquet.favourites.tv";
 595                 b.m_bouquet_name = "Favourites (TV)";
 596                 b.flushChanges();
 597                 eServiceReference ref;
 598                 memset(ref.data, 0, sizeof(ref.data));
 599                 ref.type=1;
 600                 ref.flags=7;
 601                 ref.data[0]=1;
 602                 ref.path="(type == 1) FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 603                 eBouquet &parent = m_bouquets["bouquets.tv"];
 604                 parent.m_services.push_back(ref);
 605                 parent.flushChanges();
 606         }
 607         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 608         {
 609                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 610                 b.m_filename = "userbouquet.favourites.radio";
 611                 b.m_bouquet_name = "Favourites (Radio)";
 612                 b.flushChanges();
 613                 eServiceReference ref;
 614                 memset(ref.data, 0, sizeof(ref.data));
 615                 ref.type=1;
 616                 ref.flags=7;
 617                 ref.data[0]=1;
 618                 ref.path="(type == 2) FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 619                 eBouquet &parent = m_bouquets["bouquets.radio"];
 620                 parent.m_services.push_back(ref);
 621                 parent.flushChanges();
 622         }
 623 }
 624
 625 eDVBDB::eDVBDB()
 626 {
 627         load();
 628         loadBouquets();
 629 }
 630
 631 eDVBDB::~eDVBDB()
 632 {
 633 //      save();
 634 }
 635
 636 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 637 {
 638         channel ch;
 639         assert(feparm);
 640         ch.m_frontendParameters = feparm;
 641         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 642         return 0;
 643 }
 644
 645 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 646 {
 647         m_channels.erase(id);
 648         return 0;
 649 }
 650
 651 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 652 {
 653         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 654         if (i == m_channels.end())
 655         {
 656                 parm = 0;
 657                 return -ENOENT;
 658         }
 659         parm = i->second.m_frontendParameters;
 660         return 0;
 661 }
 662
 663 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 664 {
 665         m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 666         return 0;
 667 }
 668
 669 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 670 {
 671         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 672         i = m_services.find(reference);
 673         if (i == m_services.end())
 674         {
 675                 service = 0;
 676                 return -ENOENT;
 677         }
 678         service = i->second;
 679         return 0;
 680 }
 681
 682 RESULT eDVBDB::flush()
 683 {
 684         save();
 685         return 0;
 686 }
 687
 688 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 689 {
 690         std::string str = ref.path;
 691         if (str.empty())
 692         {
 693                 eDebug("getBouquet failed.. no path given!");
 694                 return -1;
 695         }
 696         unsigned int pos = str.find("FROM BOUQUET \"");
 697         if ( pos != std::string::npos )
 698         {
 699                 str.erase(0, pos+14);
 700                 pos = str.find('"');
 701                 if ( pos != std::string::npos )
 702                         str.erase(pos);
 703                 else
 704                         str.clear();
 705         }
 706         if (str.empty())
 707         {
 708                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 709                 return -1;
 710         }
 711         std::map<std::string, eBouquet>::iterator i =
 712                 m_bouquets.find(str);
 713         if (i == m_bouquets.end())
 714         {
 715                 bouquet = 0;
 716                 return -ENOENT;
 717         }
 718         bouquet = &i->second;
 719         return 0;
 720 }
 721
 722 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 723 {
 724         if ( source.path.find("FROM") != std::string::npos )
 725         {
 726                 if ( source.path.find("BOUQUET") != std::string::npos )
 727                         query = new eDVBDBBouquetQuery(this, source, q);
 728                 else if ( source.path.find("SATELLITES") != std::string::npos )
 729                         query = new eDVBDBSatellitesQuery(this, source, q);
 730                 else if ( source.path.find("PROVIDERS") != std::string::npos )
 731                         query = new eDVBDBProvidersQuery(this, source, q);
 732                 else
 733                         eFatal("invalid query %s", source.toString().c_str());
 734         }
 735         else
 736                 query = new eDVBDBQuery(this, source, q);
 737         return 0;
 738 }
 739
 740 DEFINE_REF(eDVBDBQueryBase);
 741
 742 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 743         :m_db(db), m_query(query), m_source(source)
 744 {
 745 }
 746
 747 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 748 {
 749         ePtr<eDVBService> a_service, b_service;
 750
 751         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
 752
 753         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
 754         {
 755                 if (m_db->getService(a, a_service))
 756                         return 1;
 757                 if (m_db->getService(b, b_service))
 758                         return 1;
 759         }
 760
 761         switch (sortmode)
 762         {
 763         case eDVBChannelQuery::tName:
 764                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
 765         case eDVBChannelQuery::tProvider:
 766                 return a_service->m_provider_name < b_service->m_provider_name;
 767         case eDVBChannelQuery::tType:
 768                 return a.getServiceType() < b.getServiceType();
 769         case eDVBChannelQuery::tBouquet:
 770                 return 0;
 771         case eDVBChannelQuery::tSatellitePosition:
 772                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
 773         default:
 774                 return 1;
 775         }
 776         return 0;
 777 }
 778
 779 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 780         :eDVBDBQueryBase(db, source, query)
 781 {
 782         m_cursor = m_db->m_services.begin();
 783 }
 784
 785 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
 786 {
 787         while (m_cursor != m_db->m_services.end())
 788         {
 789                 ref = m_cursor->first;
 790
 791                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
 792
 793                 ++m_cursor;
 794
 795                 if (res)
 796                         return 0;
 797         }
 798
 799         ref.type = eServiceReference::idInvalid;
 800
 801         return 1;
 802 }
 803
 804 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 805         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
 806 {
 807 }
 808
 809 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
 810 {
 811         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
 812         std::list<eServiceReference> &list = bouquet.m_services;
 813         while (m_cursor != list.end())
 814         {
 815                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
 816
 817                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
 818                         m_db->m_services.find(ref);
 819
 820                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
 821
 822                 ++m_cursor;
 823
 824                 if (res)
 825                         return 0;
 826         }
 827
 828         ref.type = eServiceReference::idInvalid;
 829
 830         return 1;
 831 }
 832
 833 eDVBDBListQuery::eDVBDBListQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 834         :eDVBDBQueryBase(db, source, query), m_cursor(m_list.end())
 835 {
 836 }
 837
 838 RESULT eDVBDBListQuery::getNextResult(eServiceReferenceDVB &ref)
 839 {
 840         if (m_cursor != m_list.end())
 841         {
 842                 ref = *m_cursor++;
 843                 return 0;
 844         }
 845         ref.type = eServiceReference::idInvalid;
 846         return 1;
 847 }
 848
 849 int eDVBDBListQuery::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 850 {
 851         if ( m_query->m_sort == eDVBChannelQuery::tSatellitePosition )
 852         {
 853                 int x = (a.getDVBNamespace().get() >> 16);
 854                 int y = (b.getDVBNamespace().get() >> 16);
 855                 if ( x > 1800 )
 856                         x -= 3600;
 857                 if ( y > 1800 )
 858                         y -= 3600;
 859                 return x < y;
 860         }
 861         return a.name < b.name;
 862 }
 863
 864 eDVBDBSatellitesQuery::eDVBDBSatellitesQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 865         :eDVBDBListQuery(db, source, query)
 866 {
 867         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
 868                 it != m_db->m_services.end(); ++it)
 869         {
 870                 int res = it->second->checkFilter(it->first, *query);
 871                 if (res)
 872                 {
 873                         unsigned int dvbnamespace = it->first.getDVBNamespace().get()&0xFFFF0000;
 874                         bool found=0;
 875                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
 876                                 if ( (i->getDVBNamespace().get()&0xFFFF0000) == dvbnamespace )
 877                                 {
 878                                         found=true;
 879                                         break;
 880                                 }
 881                         if (!found)
 882                         {
 883                                 eServiceReferenceDVB ref;
 884                                 ref.setDVBNamespace(dvbnamespace);
 885                                 ref.flags=eServiceReference::flagDirectory;
 886                                 char buf[64];
 887                                 snprintf(buf, 64, "(satellitePosition == %d) && ", dvbnamespace>>16);
 888
 889                                 ref.path=buf+source.path;
 890                                 unsigned int pos=ref.path.find("FROM");
 891                                 ref.path.erase(pos);
 892                                 ref.path+="ORDER BY name";
 893 //                              eDebug("ref.path now %s", ref.path.c_str());
 894                                 m_list.push_back(ref);
 895
 896                                 ref.path=buf+source.path;
 897                                 pos=ref.path.find("FROM");
 898                                 ref.path.erase(pos+5);
 899                                 ref.path+="PROVIDERS ORDER BY name";
 900 //                              eDebug("ref.path now %s", ref.path.c_str());
 901                                 m_list.push_back(ref);
 902                         }
 903                 }
 904         }
 905         m_cursor=m_list.begin();
 906 }
 907
 908 eDVBDBProvidersQuery::eDVBDBProvidersQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 909         :eDVBDBListQuery(db, source, query)
 910 {
 911         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it(m_db->m_services.begin());
 912                 it != m_db->m_services.end(); ++it)
 913         {
 914                 int res = it->second->checkFilter(it->first, *query);
 915                 if (res)
 916                 {
 917                         bool found=0;
 918
 919                         const char *provider_name = it->second->m_provider_name.length() ?
 920                                 it->second->m_provider_name.c_str() :
 921                                 "Unknown";
 922
 923                         for (std::list<eServiceReferenceDVB>::iterator i(m_list.begin()); i != m_list.end(); ++i)
 924                                 if (i->name == provider_name)
 925                                 {
 926                                         found=true;
 927                                         break;
 928                                 }
 929                         if (!found)
 930                         {
 931                                 eServiceReferenceDVB ref;
 932                                 char buf[64];
 933                                 ref.name=provider_name;
 934                                 snprintf(buf, 64, "(provider == \"%s\") && ", provider_name);
 935                                 ref.path=buf+source.path;
 936                                 unsigned int pos = ref.path.find("FROM");
 937                                 ref.flags=eServiceReference::flagDirectory;
 938                                 ref.path.erase(pos);
 939                                 ref.path+="ORDER BY name";
 940 //                              eDebug("ref.path now %s", ref.path.c_str());
 941                                 m_list.push_back(ref);
 942                         }
 943                 }
 944         }
 945         m_cursor=m_list.begin();
 946 }
 947
 948 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
 949
 950 static int decodeType(const std::string &type)
 951 {
 952         if (type == "name")
 953                 return eDVBChannelQuery::tName;
 954         else if (type == "provider")
 955                 return eDVBChannelQuery::tProvider;
 956         else if (type == "type")
 957                 return eDVBChannelQuery::tType;
 958         else if (type == "bouquet")
 959                 return eDVBChannelQuery::tBouquet;
 960         else if (type == "satellitePosition")
 961                 return eDVBChannelQuery::tSatellitePosition;
 962         else if (type == "channelID")
 963                 return eDVBChannelQuery::tChannelID;
 964         else
 965                 return -1;
 966 }
 967
 968         /* never, NEVER write a parser in C++! */
 969 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
 970 {
 971         std::list<std::string>::const_iterator end_of_exp;
 972         if (*begin == "(")
 973         {
 974                 end_of_exp = begin;
 975                 while (end_of_exp != end)
 976                         if (*end_of_exp == ")")
 977                                 break;
 978                         else
 979                                 ++end_of_exp;
 980
 981                 if (end_of_exp == end)
 982                 {
 983                         eDebug("expression parse: end of expression while searching for closing brace");
 984                         return -1;
 985                 }
 986
 987                 ++begin;
 988                 // begin..end_of_exp
 989                 int r = parseExpression(res, begin, end_of_exp);
 990                 if (r)
 991                         return r;
 992                 ++end_of_exp;
 993
 994                         /* we had only one sub expression */
 995                 if (end_of_exp == end)
 996                 {
 997 //                      eDebug("only one sub expression");
 998                         return 0;
 999                 }
1000
1001                         /* otherwise we have an operator here.. */
1002
1003                 ePtr<eDVBChannelQuery> r2 = res;
1004                 res = new eDVBChannelQuery();
1005                 res->m_sort = 0;
1006                 res->m_p1 = r2;
1007                 res->m_inverse = 0;
1008                 r2 = 0;
1009
1010                 if (*end_of_exp == "||")
1011                         res->m_type = eDVBChannelQuery::tOR;
1012                 else if (*end_of_exp == "&&")
1013                         res->m_type = eDVBChannelQuery::tAND;
1014                 else
1015                 {
1016                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
1017                         res = 0;
1018                         return 1;
1019                 }
1020
1021                 ++end_of_exp;
1022
1023                 return parseExpression(res->m_p2, end_of_exp, end);
1024         }
1025
1026         // "begin" <op> "end"
1027         std::string type, op, val;
1028
1029         res = new eDVBChannelQuery();
1030         res->m_sort = 0;
1031
1032         int cnt = 0;
1033         while (begin != end)
1034         {
1035                 switch (cnt)
1036                 {
1037                 case 0:
1038                         type = *begin;
1039                         break;
1040                 case 1:
1041                         op = *begin;
1042                         break;
1043                 case 2:
1044                         val = *begin;
1045                         break;
1046                 case 3:
1047                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
1048                         return 1;
1049                 }
1050                 ++begin;
1051                 ++cnt;
1052         }
1053
1054         if (cnt != 3)
1055         {
1056                 eDebug("malformed query: missing stuff");
1057                 res = 0;
1058                 return 1;
1059         }
1060
1061         res->m_type = decodeType(type);
1062
1063         if (res->m_type == -1)
1064         {
1065                 eDebug("malformed query: invalid type %s", type.c_str());
1066                 res = 0;
1067                 return 1;
1068         }
1069
1070         if (op == "==")
1071                 res->m_inverse = 0;
1072         else if (op == "!=")
1073                 res->m_inverse = 1;
1074         else
1075         {
1076                 eDebug("invalid operator %s", op.c_str());
1077                 res = 0;
1078                 return 1;
1079         }
1080
1081         res->m_string = val;
1082         res->m_int = atoi(val.c_str());
1083 //      res->m_channelid = eDVBChannelID(val);
1084
1085         return 0;
1086 }
1087
1088 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
1089 {
1090         std::list<std::string> tokens;
1091
1092         std::string current_token;
1093         std::string bouquet_name;
1094
1095 //      eDebug("splitting %s....", query.c_str());
1096         unsigned int i = 0;
1097         const char *splitchars="()";
1098         int quotemode = 0, lastsplit = 0, lastalnum = 0;
1099         while (i <= query.size())
1100         {
1101                 int c = (i < query.size()) ? query[i] : ' ';
1102                 ++i;
1103
1104                 int issplit = !!strchr(splitchars, c);
1105                 int isaln = isalnum(c);
1106                 int iswhite = c == ' ';
1107                 int isquot = c == '\"';
1108
1109                 if (quotemode)
1110                 {
1111                         iswhite = issplit = 0;
1112                         isaln = lastalnum;
1113                 }
1114
1115                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
1116                 {
1117                         if (current_token.size())
1118                                 tokens.push_back(current_token);
1119                         current_token.clear();
1120                 }
1121
1122                 if (!(iswhite || isquot))
1123                         current_token += c;
1124
1125                 if (isquot)
1126                         quotemode = !quotemode;
1127                 lastsplit = issplit;
1128                 lastalnum = isaln;
1129         }
1130
1131 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
1132 //      {
1133 //              printf("%s\n", a->c_str());
1134 //      }
1135
1136         int sort = eDVBChannelQuery::tName;
1137                 /* check for "ORDER BY ..." */
1138
1139         std::list<std::string>::iterator it = tokens.begin();
1140         while (it != tokens.end())
1141         {
1142                 if (*it == "ORDER")
1143                 {
1144                         tokens.erase(it++);
1145                         if (it != tokens.end() && *it == "BY")
1146                         {
1147                                 tokens.erase(it++);
1148                                 sort = decodeType(*it);
1149                                 tokens.erase(it++);
1150                         } else
1151                                 sort = -1;
1152                 }
1153                 else if (*it == "FROM")
1154                 {
1155                         tokens.erase(it++);
1156                         if (it != tokens.end() && *it == "BOUQUET")
1157                         {
1158                                 tokens.erase(it++);
1159                                 bouquet_name = *it;
1160                                 tokens.erase(it++);
1161                         }
1162                         else if (it != tokens.end() && *it == "SATELLITES")
1163                                 tokens.erase(it++);
1164                         else if (it != tokens.end() && *it == "PROVIDERS")
1165                                 tokens.erase(it++);
1166                         else
1167                         {
1168                                 eDebug("FROM unknown %s", (*it).c_str());
1169                                 tokens.erase(it++);
1170                         }
1171                 }
1172                 else
1173                         ++it;
1174         }
1175
1176         if (sort == -1)
1177         {
1178                 eWarning("ORDER BY .. string invalid.");
1179                 res = 0;
1180                 return -1;
1181         }
1182
1183 //      eDebug("sort by %d", sort);
1184
1185                 /* now we recursivly parse that. */
1186         int r = parseExpression(res, tokens.begin(), tokens.end());
1187
1188         if (res)
1189         {
1190                 res->m_sort = sort;
1191                 res->m_bouquet_name = bouquet_name;
1192         }
1193
1194 //      eDebug("return: %d", r);
1195         return r;
1196 }
1197
1198 DEFINE_REF(eDVBChannelQuery);