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