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