lib/dvb/db.cpp

   1 #include <errno.h>
   2 #include <lib/dvb/db.h>
   3 #include <lib/dvb/frontend.h>
   4 #include <lib/base/eerror.h>
   5 #include <lib/base/estring.h>
   6 #include <dvbsi++/service_description_section.h>
   7 #include <dvbsi++/descriptor_tag.h>
   8 #include <dvbsi++/service_descriptor.h>
   9 #include <dvbsi++/satellite_delivery_system_descriptor.h>
  10
  11 DEFINE_REF(eDVBService);
  12
  13 RESULT eBouquet::addService(const eServiceReference &ref)
  14 {
  15         list::iterator it =
  16                 std::find(m_services.begin(), m_services.end(), ref);
  17         if ( it != m_services.end() )
  18                 return -1;
  19         m_services.push_back(ref);
  20         return 0;
  21 }
  22
  23 RESULT eBouquet::removeService(const eServiceReference &ref)
  24 {
  25         list::iterator it =
  26                 std::find(m_services.begin(), m_services.end(), ref);
  27         if ( it == m_services.end() )
  28                 return -1;
  29         m_services.erase(it);
  30         return 0;
  31 }
  32
  33 RESULT eBouquet::moveService(const eServiceReference &ref, unsigned int pos)
  34 {
  35         if ( pos < 0 || pos >= m_services.size() )
  36                 return -1;
  37         list::iterator source=m_services.end();
  38         list::iterator dest=m_services.end();
  39         for (list::iterator it(m_services.begin()); it != m_services.end(); ++it)
  40         {
  41                 if (dest == m_services.end() && !pos--)
  42                         dest = it;
  43                 if (*it == ref)
  44                         source = it;
  45                 if (dest != m_services.end() && source != m_services.end())
  46                         break;
  47         }
  48         if (dest == m_services.end() || source == m_services.end() || source == dest)
  49                 return -1;
  50         std::iter_swap(source,dest);
  51         return 0;
  52 }
  53
  54 RESULT eBouquet::flushChanges()
  55 {
  56         FILE *f=fopen(m_path.c_str(), "wt");
  57         if (!f)
  58                 return -1;
  59         if ( fprintf(f, "#NAME %s\r\n", m_bouquet_name.c_str()) < 0 )
  60                 goto err;
  61         for (list::iterator i(m_services.begin()); i != m_services.end(); ++i)
  62         {
  63                 eServiceReference tmp = *i;
  64                 std::string str = tmp.path;
  65                 if ( (i->flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
  66                 {
  67                         unsigned int p1 = str.find("FROM BOUQUET \"");
  68                         if (p1 == std::string::npos)
  69                         {
  70                                 eDebug("doof... kaputt");
  71                                 continue;
  72                         }
  73                         str.erase(0, p1+14);
  74                         p1 = str.find("\"");
  75                         if (p1 == std::string::npos)
  76                         {
  77                                 eDebug("doof2... kaputt");
  78                                 continue;
  79                         }
  80                         str.erase(p1);
  81                         tmp.path=str;
  82                 }
  83                 if ( fprintf(f, "#SERVICE %s\r\n", tmp.toString().c_str()) < 0 )
  84                         goto err;
  85                 if ( i->name.length() )
  86                         if ( fprintf(f, "#DESCRIPTION %s\r\n", i->name.c_str()) < 0 )
  87                                 goto err;
  88         }
  89         fclose(f);
  90         return 0;
  91 err:
  92         fclose(f);
  93         eDebug("couldn't write file %s", m_path.c_str());
  94         return -1;
  95 }
  96
  97 eDVBService::eDVBService()
  98 {
  99 }
 100
 101 eDVBService::~eDVBService()
 102 {
 103 }
 104
 105 eDVBService &eDVBService::operator=(const eDVBService &s)
 106 {
 107         m_service_name = s.m_service_name;
 108         m_service_name_sort = s.m_service_name_sort;
 109         m_provider_name = s.m_provider_name;
 110         m_flags = s.m_flags;
 111         m_ca = s.m_ca;
 112         m_cache = s.m_cache;
 113         return *this;
 114 }
 115
 116 RESULT eDVBService::getName(const eServiceReference &ref, std::string &name)
 117 {
 118         if (!ref.name.empty())
 119                 name = ref.name;
 120         else if (!m_service_name.empty())
 121                 name = m_service_name;
 122         else
 123                 name = "(...)";
 124         return 0;
 125 }
 126
 127 int eDVBService::getLength(const eServiceReference &ref)
 128 {
 129         return -1;
 130 }
 131
 132 int eDVBService::checkFilter(const eServiceReferenceDVB &ref, const eDVBChannelQuery &query)
 133 {
 134         int res = 0;
 135         switch (query.m_type)
 136         {
 137         case eDVBChannelQuery::tName:
 138                 res = m_service_name_sort.find(query.m_string) != std::string::npos;
 139                 break;
 140         case eDVBChannelQuery::tProvider:
 141                 res = m_provider_name.find(query.m_string) != std::string::npos;
 142                 break;
 143         case eDVBChannelQuery::tType:
 144                 res = ref.getServiceType() == query.m_int;
 145                 break;
 146         case eDVBChannelQuery::tBouquet:
 147                 res = 0;
 148                 break;
 149         case eDVBChannelQuery::tSatellitePosition:
 150                 res = (ref.getDVBNamespace().get() >> 16) == query.m_int;
 151                 break;
 152         case eDVBChannelQuery::tChannelID:
 153         {
 154                 eDVBChannelID chid;
 155                 ref.getChannelID(chid);
 156                 res = chid == query.m_channelid;
 157                 break;
 158         }
 159         case eDVBChannelQuery::tAND:
 160                 res = checkFilter(ref, *query.m_p1) && checkFilter(ref, *query.m_p2);
 161                 break;
 162         case eDVBChannelQuery::tOR:
 163                 res = checkFilter(ref, *query.m_p1) || checkFilter(ref, *query.m_p2);
 164                 break;
 165         }
 166
 167         if (query.m_inverse)
 168                 return !res;
 169         else
 170                 return res;
 171 }
 172
 173 int eDVBService::getCachePID(cacheID id)
 174 {
 175         std::map<int, int>::iterator it = m_cache.find(id);
 176         if ( it != m_cache.end() )
 177                 return it->second;
 178         return -1;
 179 }
 180
 181 void eDVBService::setCachePID(cacheID id, int pid)
 182 {
 183         m_cache[id] = pid;
 184 }
 185
 186 DEFINE_REF(eDVBDB);
 187
 188         /* THIS CODE IS BAD. it should be replaced by somethine better. */
 189 void eDVBDB::load()
 190 {
 191         eDebug("---- opening lame channel db");
 192         FILE *f=fopen("lamedb", "rt");
 193         if (!f)
 194                 return;
 195         char line[256];
 196         if ((!fgets(line, 256, f)) || strncmp(line, "eDVB services", 13))
 197         {
 198                 eDebug("not a servicefile");
 199                 fclose(f);
 200                 return;
 201         }
 202         eDebug("reading services");
 203         if ((!fgets(line, 256, f)) || strcmp(line, "transponders\n"))
 204         {
 205                 eDebug("services invalid, no transponders");
 206                 fclose(f);
 207                 return;
 208         }
 209
 210         // clear all transponders
 211
 212         while (!feof(f))
 213         {
 214                 if (!fgets(line, 256, f))
 215                         break;
 216                 if (!strcmp(line, "end\n"))
 217                         break;
 218                 int dvb_namespace=-1, transport_stream_id=-1, original_network_id=-1;
 219                 sscanf(line, "%x:%x:%x", &dvb_namespace, &transport_stream_id, &original_network_id);
 220                 if (original_network_id == -1)
 221                         continue;
 222                 eDVBChannelID channelid = eDVBChannelID(
 223                         eDVBNamespace(dvb_namespace),
 224                         eTransportStreamID(transport_stream_id),
 225                         eOriginalNetworkID(original_network_id));
 226
 227                 ePtr<eDVBFrontendParameters> feparm = new eDVBFrontendParameters;
 228                 while (!feof(f))
 229                 {
 230                         fgets(line, 256, f);
 231                         if (!strcmp(line, "/\n"))
 232                                 break;
 233                         if (line[1]=='s')
 234                         {
 235                                 eDVBFrontendParametersSatellite sat;
 236                                 int frequency, symbol_rate, polarisation, fec, orbital_position, inversion;
 237                                 sscanf(line+2, "%d:%d:%d:%d:%d:%d", &frequency, &symbol_rate, &polarisation, &fec, &orbital_position, &inversion);
 238                                 sat.frequency = frequency;
 239                                 sat.symbol_rate = symbol_rate;
 240                                 sat.polarisation = polarisation;
 241                                 sat.fec = fec;
 242                                 sat.orbital_position = orbital_position;
 243                                 sat.inversion = inversion;
 244                                 feparm->setDVBS(sat);
 245                         } else if (line[1]=='t')
 246                         {
 247                                 eDVBFrontendParametersTerrestrial ter;
 248                                 int frequency, bandwidth, code_rate_HP, code_rate_LP, modulation, transmission_mode, guard_interval, hierarchy, inversion;
 249                                 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);
 250                                 ter.frequency = frequency;
 251                                 ter.bandwidth = bandwidth;
 252                                 ter.code_rate_HP = code_rate_HP;
 253                                 ter.code_rate_LP = code_rate_LP;
 254                                 ter.modulation = modulation;
 255                                 ter.transmission_mode = transmission_mode;
 256                                 ter.guard_interval = guard_interval;
 257                                 ter.hierarchy = hierarchy;
 258                                 ter.inversion = inversion;
 259
 260                                 feparm->setDVBT(ter);
 261                         } else if (line[1]=='c')
 262                         {
 263                                 int frequency, symbol_rate, inversion=0, modulation=3;
 264                                 sscanf(line+2, "%d:%d:%d:%d", &frequency, &symbol_rate, &inversion, &modulation);
 265 //                              t.setCable(frequency, symbol_rate, inversion, modulation);
 266                         }
 267                 }
 268                 addChannelToList(channelid, feparm);
 269         }
 270
 271         if ((!fgets(line, 256, f)) || strcmp(line, "services\n"))
 272         {
 273                 eDebug("services invalid, no services");
 274                 return;
 275         }
 276
 277         // clear all services
 278
 279         int count=0;
 280
 281         while (!feof(f))
 282         {
 283                 if (!fgets(line, 256, f))
 284                         break;
 285                 if (!strcmp(line, "end\n"))
 286                         break;
 287
 288                 int service_id=-1, dvb_namespace, transport_stream_id=-1, original_network_id=-1, service_type=-1, service_number=-1;
 289                 sscanf(line, "%x:%x:%x:%x:%d:%d", &service_id, &dvb_namespace, &transport_stream_id, &original_network_id, &service_type, &service_number);
 290                 if (service_number == -1)
 291                         continue;
 292                 ePtr<eDVBService> s = new eDVBService;
 293                 eServiceReferenceDVB ref =
 294                                                 eServiceReferenceDVB(
 295                                                 eDVBNamespace(dvb_namespace),
 296                                                 eTransportStreamID(transport_stream_id),
 297                                                 eOriginalNetworkID(original_network_id),
 298                                                 eServiceID(service_id),
 299                                                 service_type);
 300                 count++;
 301                 fgets(line, 256, f);
 302                 if (strlen(line))
 303                         line[strlen(line)-1]=0;
 304
 305                 s->m_service_name = line;
 306                 s->m_service_name_sort = removeDVBChars(line);
 307                 makeUpper(s->m_service_name_sort);
 308                 while ((!s->m_service_name_sort.empty()) && s->m_service_name_sort[0] == ' ')
 309                         s->m_service_name_sort.erase(0, 1);
 310
 311                         /* put unnamed services at the end, not at the beginning. */
 312                 if (s->m_service_name_sort.empty())
 313                         s->m_service_name_sort = "\xFF";
 314
 315                 fgets(line, 256, f);
 316                 if (strlen(line))
 317                         line[strlen(line)-1]=0;
 318
 319                 std::string str=line;
 320
 321                 if (str[1]!=':')        // old ... (only service_provider)
 322                 {
 323                         s->m_provider_name=line;
 324                 } else
 325                         while ((!str.empty()) && str[1]==':') // new: p:, f:, c:%02d...
 326                         {
 327                                 unsigned int c=str.find(',');
 328                                 char p=str[0];
 329                                 std::string v;
 330                                 if (c == std::string::npos)
 331                                 {
 332                                         v=str.substr(2);
 333                                         str="";
 334                                 } else
 335                                 {
 336                                         v=str.substr(2, c-2);
 337                                         str=str.substr(c+1);
 338                                 }
 339 //                              eDebug("%c ... %s", p, v.c_str());
 340                                 if (p == 'p')
 341                                         s->m_provider_name=v;
 342                                 else if (p == 'f')
 343                                 {
 344                                         sscanf(v.c_str(), "%x", &s->m_flags);
 345                                 } else if (p == 'c')
 346                                 {
 347                                         int cid, val;
 348                                         sscanf(v.c_str(), "%02d%04x", &cid, &val);
 349                                         s->m_cache[cid]=val;
 350                                 } else if (p == 'C')
 351                                 {
 352                                         int val;
 353                                         sscanf(v.c_str(), "%04x", &val);
 354                                         s->m_ca.insert(val);
 355                                 }
 356                         }
 357                 addService(ref, s);
 358         }
 359
 360         eDebug("loaded %d services", count);
 361
 362         fclose(f);
 363 }
 364
 365 void eDVBDB::save()
 366 {
 367         eDebug("---- saving lame channel db");
 368         FILE *f=fopen("lamedb", "wt");
 369         int channels=0, services=0;
 370         if (!f)
 371                 eFatal("couldn't save lame channel db!");
 372         fprintf(f, "eDVB services /3/\n");
 373         fprintf(f, "transponders\n");
 374         for (std::map<eDVBChannelID, channel>::const_iterator i(m_channels.begin());
 375                         i != m_channels.end(); ++i)
 376         {
 377                 const eDVBChannelID &chid = i->first;
 378                 const channel &ch = i->second;
 379
 380                 fprintf(f, "%08x:%04x:%04x\n", chid.dvbnamespace.get(),
 381                                 chid.transport_stream_id.get(), chid.original_network_id.get());
 382                 eDVBFrontendParametersSatellite sat;
 383                 eDVBFrontendParametersTerrestrial ter;
 384                 if (!ch.m_frontendParameters->getDVBS(sat))
 385                 {
 386                         fprintf(f, "\ts %d:%d:%d:%d:%d:%d\n",
 387                                 sat.frequency, sat.symbol_rate,
 388                                 sat.polarisation, sat.fec, sat.orbital_position,
 389                                 sat.inversion);
 390                 }
 391                 if (!ch.m_frontendParameters->getDVBT(ter))
 392                 {
 393                         fprintf(f, "\tt %d:%d:%d:%d:%d:%d:%d:%d:%d\n",
 394                                 ter.frequency, ter.bandwidth, ter.code_rate_HP,
 395                                 ter.code_rate_LP, ter.modulation, ter.transmission_mode,
 396                                 ter.guard_interval, ter.hierarchy, ter.inversion);
 397                 }
 398                 fprintf(f, "/\n");
 399                 channels++;
 400         }
 401         fprintf(f, "end\nservices\n");
 402
 403         for (std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i(m_services.begin());
 404                 i != m_services.end(); ++i)
 405         {
 406                 const eServiceReferenceDVB &s = i->first;
 407                 fprintf(f, "%04x:%08x:%04x:%04x:%d:%d\n",
 408                                 s.getServiceID().get(), s.getDVBNamespace().get(),
 409                                 s.getTransportStreamID().get(),s.getOriginalNetworkID().get(),
 410                                 s.getServiceType(),
 411                                 0);
 412
 413                 fprintf(f, "%s\n", i->second->m_service_name.c_str());
 414                 fprintf(f, "p:%s", i->second->m_provider_name.c_str());
 415
 416                 // write cached pids
 417                 for (std::map<int,int>::const_iterator ca(i->second->m_cache.begin());
 418                         ca != i->second->m_cache.end(); ++ca)
 419                         fprintf(f, ",c:%02d%04x", ca->first, ca->second);
 420
 421                 // write cached ca pids
 422                 for (std::set<int>::const_iterator ca(i->second->m_ca.begin());
 423                         ca != i->second->m_ca.end(); ++ca)
 424                         fprintf(f, ",C:%04x", *ca);
 425
 426                 fprintf(f, "\n");
 427                 services++;
 428         }
 429         fprintf(f, "end\nHave a lot of bugs!\n");
 430         eDebug("saved %d channels and %d services!", channels, services);
 431         fclose(f);
 432 }
 433
 434 void eDVBDB::loadBouquet(const char *path)
 435 {
 436         std::string bouquet_name = path;
 437         if (!bouquet_name.length())
 438         {
 439                 eDebug("Bouquet load failed.. no path given..");
 440                 return;
 441         }
 442         unsigned int pos = bouquet_name.rfind('/');
 443         if ( pos != std::string::npos )
 444                 bouquet_name.erase(0, pos+1);
 445         if (bouquet_name.empty())
 446         {
 447                 eDebug("Bouquet load failed.. no filename given..");
 448                 return;
 449         }
 450         eBouquet &bouquet = m_bouquets[bouquet_name];
 451         bouquet.m_path = path;
 452         std::list<eServiceReference> &list = bouquet.m_services;
 453         list.clear();
 454
 455         eDebug("loading bouquet... %s", path);
 456         FILE *fp=fopen(path, "rt");
 457         int entries=0;
 458         if (!fp)
 459         {
 460                 eDebug("failed to open.");
 461                 if ( strstr(path, "bouquets.tv") )
 462                 {
 463                         eDebug("recreate bouquets.tv");
 464                         bouquet.m_bouquet_name="Bouquets (TV)";
 465                         bouquet.flushChanges();
 466                 }
 467                 else if ( strstr(path, "bouquets.radio") )
 468                 {
 469                         eDebug("recreate bouquets.radio");
 470                         bouquet.m_bouquet_name="Bouquets (Radio)";
 471                         bouquet.flushChanges();
 472                 }
 473                 return;
 474         }
 475         char line[256];
 476         bool read_descr=false;
 477         eServiceReference *e = NULL;
 478         while (1)
 479         {
 480                 if (!fgets(line, 256, fp))
 481                         break;
 482                 line[strlen(line)-1]=0;
 483                 if (strlen(line) && line[strlen(line)-1]=='\r')
 484                         line[strlen(line)-1]=0;
 485                 if (!line[0])
 486                         break;
 487                 if (line[0]=='#')
 488                 {
 489                         if (!strncmp(line, "#SERVICE ", 9) || !strncmp(line, "#SERVICE: ", 10))
 490                         {
 491                                 int offs = line[8] == ':' ? 10 : 9;
 492                                 eServiceReference tmp(line+offs);
 493                                 if (tmp.type != eServiceReference::idDVB)
 494                                 {
 495                                         eDebug("only DVB Bouquets supported");
 496                                         continue;
 497                                 }
 498                                 if ( (tmp.flags&eServiceReference::flagDirectory) == eServiceReference::flagDirectory )
 499                                 {
 500                                         std::string str = tmp.path;
 501                                         unsigned int pos = str.rfind('/');
 502                                         if ( pos != std::string::npos )
 503                                                 str.erase(0, pos+1);
 504                                         if (str.empty())
 505                                         {
 506                                                 eDebug("Bouquet load failed.. no filename given..");
 507                                                 continue;
 508                                         }
 509                                         loadBouquet(tmp.path.c_str());
 510                                         char buf[256];
 511                                         snprintf(buf, 256, "(type == %d) FROM BOUQUET \"%s\" ORDER BY bouquet", tmp.data[0], str.c_str());
 512                                         tmp.path = buf;
 513                                 }
 514                                 list.push_back(tmp);
 515                                 e = &list.back();
 516                                 read_descr=true;
 517                                 ++entries;
 518                         }
 519                         else if (read_descr && !strncmp(line, "#DESCRIPTION ", 13))
 520                         {
 521                                 e->name = line+13;
 522                                 read_descr=false;
 523                         }
 524                         else if (!strncmp(line, "#NAME ", 6))
 525                                 bouquet.m_bouquet_name=line+6;
 526                         continue;
 527                 }
 528         }
 529         fclose(fp);
 530         eDebug("%d entries in Bouquet %s", entries, bouquet_name.c_str());
 531 }
 532
 533 void eDVBDB::saveBouquet(const char *path)
 534 {
 535
 536 }
 537
 538 void eDVBDB::loadBouquets()
 539 {
 540         loadBouquet("bouquets.tv");
 541         loadBouquet("bouquets.radio");
 542 // create default bouquets when missing
 543         if ( m_bouquets.find("userbouquet.favourites.tv") == m_bouquets.end() )
 544         {
 545                 eBouquet &b = m_bouquets["userbouquet.favourites.tv"];
 546                 b.m_path = "userbouquet.favourites.tv";
 547                 b.m_bouquet_name = "Favourites (TV)";
 548                 b.flushChanges();
 549                 eServiceReference ref;
 550                 memset(ref.data, 0, sizeof(ref.data));
 551                 ref.type=1;
 552                 ref.flags=7;
 553                 ref.data[0]=1;
 554                 ref.path="(type == 1) FROM BOUQUET \"userbouquet.favourites.tv\" ORDER BY bouquet";
 555                 eBouquet &parent = m_bouquets["bouquets.tv"];
 556                 parent.m_services.push_back(ref);
 557                 parent.flushChanges();
 558         }
 559         if ( m_bouquets.find("userbouquet.favourites.radio") == m_bouquets.end() )
 560         {
 561                 eBouquet &b = m_bouquets["userbouquet.favourites.radio"];
 562                 b.m_path = "userbouquet.favourites.radio";
 563                 b.m_bouquet_name = "Favourites (Radio)";
 564                 b.flushChanges();
 565                 eServiceReference ref;
 566                 memset(ref.data, 0, sizeof(ref.data));
 567                 ref.type=1;
 568                 ref.flags=7;
 569                 ref.data[0]=1;
 570                 ref.path="(type == 2) FROM BOUQUET \"userbouquet.favourites.radio\" ORDER BY bouquet";
 571                 eBouquet &parent = m_bouquets["bouquets.radio"];
 572                 parent.m_services.push_back(ref);
 573                 parent.flushChanges();
 574         }
 575 }
 576
 577 void eDVBDB::saveBouquets()
 578 {
 579
 580 }
 581
 582 eDVBDB::eDVBDB()
 583 {
 584         load();
 585         loadBouquets();
 586 }
 587
 588 eDVBDB::~eDVBDB()
 589 {
 590 //      save();
 591 }
 592
 593 RESULT eDVBDB::addChannelToList(const eDVBChannelID &id, iDVBFrontendParameters *feparm)
 594 {
 595         channel ch;
 596         assert(feparm);
 597         ch.m_frontendParameters = feparm;
 598         m_channels.insert(std::pair<eDVBChannelID, channel>(id, ch));
 599         return 0;
 600 }
 601
 602 RESULT eDVBDB::removeChannel(const eDVBChannelID &id)
 603 {
 604         m_channels.erase(id);
 605         return 0;
 606 }
 607
 608 RESULT eDVBDB::getChannelFrontendData(const eDVBChannelID &id, ePtr<iDVBFrontendParameters> &parm)
 609 {
 610         std::map<eDVBChannelID, channel>::iterator i = m_channels.find(id);
 611         if (i == m_channels.end())
 612         {
 613                 parm = 0;
 614                 return -ENOENT;
 615         }
 616         parm = i->second.m_frontendParameters;
 617         return 0;
 618 }
 619
 620 RESULT eDVBDB::addService(const eServiceReferenceDVB &serviceref, eDVBService *service)
 621 {
 622         m_services.insert(std::pair<eServiceReferenceDVB, ePtr<eDVBService> >(serviceref, service));
 623         return 0;
 624 }
 625
 626 RESULT eDVBDB::getService(const eServiceReferenceDVB &reference, ePtr<eDVBService> &service)
 627 {
 628         std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator i;
 629         i = m_services.find(reference);
 630         if (i == m_services.end())
 631         {
 632                 service = 0;
 633                 return -ENOENT;
 634         }
 635         service = i->second;
 636         return 0;
 637 }
 638
 639 RESULT eDVBDB::getBouquet(const eServiceReference &ref, eBouquet* &bouquet)
 640 {
 641         std::string str = ref.path;
 642         if (str.empty())
 643         {
 644                 eDebug("getBouquet failed.. no path given!");
 645                 return -1;
 646         }
 647         unsigned int pos = str.find("FROM BOUQUET \"");
 648         if ( pos != std::string::npos )
 649         {
 650                 str.erase(0, pos+14);
 651                 pos = str.find('"');
 652                 if ( pos != std::string::npos )
 653                         str.erase(pos);
 654                 else
 655                         str.clear();
 656         }
 657         if (str.empty())
 658         {
 659                 eDebug("getBouquet failed.. couldn't parse bouquet name");
 660                 return -1;
 661         }
 662         std::map<std::string, eBouquet>::iterator i =
 663                 m_bouquets.find(str);
 664         if (i == m_bouquets.end())
 665         {
 666                 bouquet = 0;
 667                 return -ENOENT;
 668         }
 669         bouquet = &i->second;
 670         return 0;
 671 }
 672
 673 RESULT eDVBDB::startQuery(ePtr<iDVBChannelListQuery> &query, eDVBChannelQuery *q, const eServiceReference &source)
 674 {
 675         if ( q && q->m_bouquet_name.length() )
 676                 query = new eDVBDBBouquetQuery(this, source, q);
 677         else
 678                 query = new eDVBDBQuery(this, source, q);
 679         return 0;
 680 }
 681
 682 DEFINE_REF(eDVBDBQueryBase);
 683
 684 eDVBDBQueryBase::eDVBDBQueryBase(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 685         :m_db(db), m_query(query), m_source(source)
 686 {
 687 }
 688
 689 int eDVBDBQueryBase::compareLessEqual(const eServiceReferenceDVB &a, const eServiceReferenceDVB &b)
 690 {
 691         ePtr<eDVBService> a_service, b_service;
 692
 693         int sortmode = m_query ? m_query->m_sort : eDVBChannelQuery::tName;
 694
 695         if ((sortmode == eDVBChannelQuery::tName) || (sortmode == eDVBChannelQuery::tProvider))
 696         {
 697                 if (m_db->getService(a, a_service))
 698                         return 1;
 699                 if (m_db->getService(b, b_service))
 700                         return 1;
 701         }
 702
 703         switch (sortmode)
 704         {
 705         case eDVBChannelQuery::tName:
 706                 return a_service->m_service_name_sort < b_service->m_service_name_sort;
 707         case eDVBChannelQuery::tProvider:
 708                 return a_service->m_provider_name < b_service->m_provider_name;
 709         case eDVBChannelQuery::tType:
 710                 return a.getServiceType() < b.getServiceType();
 711         case eDVBChannelQuery::tBouquet:
 712                 return 0;
 713         case eDVBChannelQuery::tSatellitePosition:
 714                 return (a.getDVBNamespace().get() >> 16) < (b.getDVBNamespace().get() >> 16);
 715         default:
 716                 return 1;
 717         }
 718         return 0;
 719 }
 720
 721 eDVBDBQuery::eDVBDBQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 722         :eDVBDBQueryBase(db, source, query)
 723 {
 724         m_cursor = m_db->m_services.begin();
 725 }
 726
 727 RESULT eDVBDBQuery::getNextResult(eServiceReferenceDVB &ref)
 728 {
 729         while (m_cursor != m_db->m_services.end())
 730         {
 731                 ref = m_cursor->first;
 732
 733                 int res = (!m_query) || m_cursor->second->checkFilter(ref, *m_query);
 734
 735                 ++m_cursor;
 736
 737                 if (res)
 738                         return 0;
 739         }
 740
 741         ref.type = eServiceReference::idInvalid;
 742
 743         return 1;
 744 }
 745
 746 eDVBDBBouquetQuery::eDVBDBBouquetQuery(eDVBDB *db, const eServiceReference &source, eDVBChannelQuery *query)
 747         :eDVBDBQueryBase(db, source, query), m_cursor(db->m_bouquets[query->m_bouquet_name].m_services.begin())
 748 {
 749 }
 750
 751 RESULT eDVBDBBouquetQuery::getNextResult(eServiceReferenceDVB &ref)
 752 {
 753         eBouquet &bouquet = m_db->m_bouquets[m_query->m_bouquet_name];
 754         std::list<eServiceReference> &list = bouquet.m_services;
 755         while (m_cursor != list.end())
 756         {
 757                 ref = *((eServiceReferenceDVB*)&(*m_cursor));
 758
 759                 std::map<eServiceReferenceDVB, ePtr<eDVBService> >::iterator it =
 760                         m_db->m_services.find(ref);
 761
 762                 int res = (!m_query) || it == m_db->m_services.end() || it->second->checkFilter(ref, *m_query);
 763
 764                 ++m_cursor;
 765
 766                 if (res)
 767                         return 0;
 768         }
 769
 770         ref.type = eServiceReference::idInvalid;
 771
 772         return 1;
 773 }
 774
 775 /* (<name|provider|type|bouquet|satpos|chid> <==|...> <"string"|int>)[||,&& (..)] */
 776
 777 static int decodeType(const std::string &type)
 778 {
 779         if (type == "name")
 780                 return eDVBChannelQuery::tName;
 781         else if (type == "provider")
 782                 return eDVBChannelQuery::tProvider;
 783         else if (type == "type")
 784                 return eDVBChannelQuery::tType;
 785         else if (type == "bouquet")
 786                 return eDVBChannelQuery::tBouquet;
 787         else if (type == "satellitePosition")
 788                 return eDVBChannelQuery::tSatellitePosition;
 789         else if (type == "channelID")
 790                 return eDVBChannelQuery::tChannelID;
 791         else
 792                 return -1;
 793 }
 794
 795         /* never, NEVER write a parser in C++! */
 796 RESULT parseExpression(ePtr<eDVBChannelQuery> &res, std::list<std::string>::const_iterator begin, std::list<std::string>::const_iterator end)
 797 {
 798         std::list<std::string>::const_iterator end_of_exp;
 799         if (*begin == "(")
 800         {
 801                 end_of_exp = begin;
 802                 while (end_of_exp != end)
 803                         if (*end_of_exp == ")")
 804                                 break;
 805                         else
 806                                 ++end_of_exp;
 807
 808                 if (end_of_exp == end)
 809                 {
 810                         eDebug("expression parse: end of expression while searching for closing brace");
 811                         return -1;
 812                 }
 813
 814                 ++begin;
 815                 // begin..end_of_exp
 816                 int r = parseExpression(res, begin, end_of_exp);
 817                 if (r)
 818                         return r;
 819                 ++end_of_exp;
 820
 821                         /* we had only one sub expression */
 822                 if (end_of_exp == end)
 823                 {
 824 //                      eDebug("only one sub expression");
 825                         return 0;
 826                 }
 827
 828                         /* otherwise we have an operator here.. */
 829
 830                 ePtr<eDVBChannelQuery> r2 = res;
 831                 res = new eDVBChannelQuery();
 832                 res->m_sort = 0;
 833                 res->m_p1 = r2;
 834                 res->m_inverse = 0;
 835                 r2 = 0;
 836
 837                 if (*end_of_exp == "||")
 838                         res->m_type = eDVBChannelQuery::tOR;
 839                 else if (*end_of_exp == "&&")
 840                         res->m_type = eDVBChannelQuery::tAND;
 841                 else
 842                 {
 843                         eDebug("found operator %s, but only && and || are allowed!", end_of_exp->c_str());
 844                         res = 0;
 845                         return 1;
 846                 }
 847
 848                 ++end_of_exp;
 849
 850                 return parseExpression(res->m_p2, end_of_exp, end);
 851         }
 852
 853         // "begin" <op> "end"
 854         std::string type, op, val;
 855
 856         res = new eDVBChannelQuery();
 857         res->m_sort = 0;
 858
 859         int cnt = 0;
 860         while (begin != end)
 861         {
 862                 switch (cnt)
 863                 {
 864                 case 0:
 865                         type = *begin;
 866                         break;
 867                 case 1:
 868                         op = *begin;
 869                         break;
 870                 case 2:
 871                         val = *begin;
 872                         break;
 873                 case 3:
 874                         eDebug("malformed query: got '%s', but expected only <type> <op> <val>", begin->c_str());
 875                         return 1;
 876                 }
 877                 ++begin;
 878                 ++cnt;
 879         }
 880
 881         if (cnt != 3)
 882         {
 883                 eDebug("malformed query: missing stuff");
 884                 res = 0;
 885                 return 1;
 886         }
 887
 888         res->m_type = decodeType(type);
 889
 890         if (res->m_type == -1)
 891         {
 892                 eDebug("malformed query: invalid type %s", type.c_str());
 893                 res = 0;
 894                 return 1;
 895         }
 896
 897         if (op == "==")
 898                 res->m_inverse = 0;
 899         else if (op == "!=")
 900                 res->m_inverse = 1;
 901         else
 902         {
 903                 eDebug("invalid operator %s", op.c_str());
 904                 res = 0;
 905                 return 1;
 906         }
 907
 908         res->m_string = val;
 909         res->m_int = atoi(val.c_str());
 910 //      res->m_channelid = eDVBChannelID(val);
 911
 912         return 0;
 913 }
 914
 915 RESULT eDVBChannelQuery::compile(ePtr<eDVBChannelQuery> &res, std::string query)
 916 {
 917         std::list<std::string> tokens;
 918
 919         std::string current_token;
 920         std::string bouquet_name;
 921
 922 //      eDebug("splitting %s....", query.c_str());
 923         unsigned int i = 0;
 924         const char *splitchars="()";
 925         int quotemode = 0, lastsplit = 0, lastalnum = 0;
 926         while (i <= query.size())
 927         {
 928                 int c = (i < query.size()) ? query[i] : ' ';
 929                 ++i;
 930
 931                 int issplit = !!strchr(splitchars, c);
 932                 int isaln = isalnum(c);
 933                 int iswhite = c == ' ';
 934                 int isquot = c == '\"';
 935
 936                 if (quotemode)
 937                 {
 938                         iswhite = issplit = 0;
 939                         isaln = lastalnum;
 940                 }
 941
 942                 if (issplit || iswhite || isquot || lastsplit || (lastalnum != isaln))
 943                 {
 944                         if (current_token.size())
 945                                 tokens.push_back(current_token);
 946                         current_token.clear();
 947                 }
 948
 949                 if (!(iswhite || isquot))
 950                         current_token += c;
 951
 952                 if (isquot)
 953                         quotemode = !quotemode;
 954                 lastsplit = issplit;
 955                 lastalnum = isaln;
 956         }
 957
 958 //      for (std::list<std::string>::const_iterator a(tokens.begin()); a != tokens.end(); ++a)
 959 //      {
 960 //              printf("%s\n", a->c_str());
 961 //      }
 962
 963         int sort = eDVBChannelQuery::tName;
 964                 /* check for "ORDER BY ..." */
 965
 966         while (tokens.size() > 2)
 967         {
 968                 std::list<std::string>::iterator it = tokens.end();
 969                 --it; --it; --it;
 970                 if (*it == "ORDER")
 971                 {
 972                         ++it;
 973                         if (*it == "BY")
 974                         {
 975                                 ++it;
 976                                 sort = decodeType(*it);
 977                                 tokens.pop_back(); // ...
 978                                 tokens.pop_back(); // BY
 979                                 tokens.pop_back(); // ORDER
 980                         } else
 981                                 sort = -1;
 982                 }
 983                 else if (*it == "FROM")
 984                 {
 985                         ++it;
 986                         if (*it == "BOUQUET")
 987                         {
 988                                 ++it;
 989                                 bouquet_name = *it;
 990                                 tokens.pop_back(); // ...
 991                                 tokens.pop_back(); // FROM
 992                                 tokens.pop_back(); // BOUQUET
 993                         }
 994                 }
 995                 else
 996                         break;
 997         }
 998
 999         if (sort == -1)
1000         {
1001                 eWarning("ORDER BY .. string invalid.");
1002                 res = 0;
1003                 return -1;
1004         }
1005
1006 //      eDebug("sort by %d", sort);
1007
1008                 /* now we recursivly parse that. */
1009         int r = parseExpression(res, tokens.begin(), tokens.end());
1010
1011         if (res)
1012         {
1013                 res->m_sort = sort;
1014                 res->m_bouquet_name = bouquet_name;
1015         }
1016
1017 //      eDebug("return: %d", r);
1018         return r;
1019 }
1020
1021 DEFINE_REF(eDVBChannelQuery);