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