lib/service/servicefs.cpp

   1 #include <lib/base/eerror.h>
   2 #include <lib/base/object.h>
   3 #include <string>
   4 #include <errno.h>
   5 #include <lib/service/servicefs.h>
   6 #include <lib/service/service.h>
   7 #include <lib/service/servicedvb.h>
   8 #include <lib/base/init_num.h>
   9 #include <lib/base/init.h>
  10 #include <dirent.h>
  11 #include <sys/types.h>
  12 #include <sys/stat.h>
  13 #include <unistd.h>
  14
  15 class eStaticServiceFSInformation: public iStaticServiceInformation
  16 {
  17         DECLARE_REF(eStaticServiceFSInformation);
  18 public:
  19         RESULT getName(const eServiceReference &ref, std::string &name);
  20         int getLength(const eServiceReference &ref) { return -1; }
  21 };
  22
  23 DEFINE_REF(eStaticServiceFSInformation);
  24
  25 RESULT eStaticServiceFSInformation::getName(const eServiceReference &ref, std::string &name)
  26 {
  27         name = ref.path;
  28         return 0;
  29 }
  30
  31 // eServiceFactoryFS
  32
  33 eServiceFactoryFS::eServiceFactoryFS()
  34 {
  35         ePtr<eServiceCenter> sc;
  36
  37         eServiceCenter::getPrivInstance(sc);
  38         if (sc)
  39                 sc->addServiceFactory(eServiceFactoryFS::id, this);
  40
  41         m_service_information = new eStaticServiceFSInformation();
  42 }
  43
  44 eServiceFactoryFS::~eServiceFactoryFS()
  45 {
  46         ePtr<eServiceCenter> sc;
  47
  48         eServiceCenter::getPrivInstance(sc);
  49         if (sc)
  50                 sc->removeServiceFactory(eServiceFactoryFS::id);
  51 }
  52
  53 DEFINE_REF(eServiceFactoryFS)
  54
  55         // iServiceHandler
  56 RESULT eServiceFactoryFS::play(const eServiceReference &ref, ePtr<iPlayableService> &ptr)
  57 {
  58         ptr=0;
  59         return -1;
  60 }
  61
  62 RESULT eServiceFactoryFS::record(const eServiceReference &ref, ePtr<iRecordableService> &ptr)
  63 {
  64         ptr=0;
  65         return -1;
  66 }
  67
  68 RESULT eServiceFactoryFS::list(const eServiceReference &ref, ePtr<iListableService> &ptr)
  69 {
  70         ptr = new eServiceFS(ref.path.c_str());
  71         return 0;
  72 }
  73
  74 RESULT eServiceFactoryFS::info(const eServiceReference &ref, ePtr<iStaticServiceInformation> &ptr)
  75 {
  76         ptr = m_service_information;
  77         return 0;
  78 }
  79
  80 RESULT eServiceFactoryFS::offlineOperations(const eServiceReference &, ePtr<iServiceOfflineOperations> &ptr)
  81 {
  82         ptr = 0;
  83         return -1;
  84 }
  85
  86 // eServiceFS
  87
  88 DEFINE_REF(eServiceFS);
  89
  90 eServiceFS::eServiceFS(const char *path): path(path)
  91 {
  92         m_list_valid = 0;
  93 }
  94
  95 eServiceFS::~eServiceFS()
  96 {
  97 }
  98
  99 RESULT eServiceFS::getContent(std::list<eServiceReference> &list, bool sorted)
 100 {
 101         DIR *d=opendir(path.c_str());
 102         if (!d)
 103                 return -errno;
 104         while (dirent *e=readdir(d))
 105         {
 106                 if (!(strcmp(e->d_name, ".") && strcmp(e->d_name, "..")))
 107                         continue;
 108
 109                 std::string filename;
 110
 111                 filename = path;
 112                 filename += e->d_name;
 113
 114                 struct stat s;
 115                 if (::stat(filename.c_str(), &s) < 0)
 116                         continue;
 117
 118                 if (S_ISDIR(s.st_mode))
 119                         filename += "/";
 120
 121                 if (S_ISDIR(s.st_mode))
 122                 {
 123                         eServiceReference service(eServiceFactoryFS::id,
 124                                 eServiceReference::isDirectory|
 125                                 eServiceReference::canDescent|eServiceReference::mustDescent|
 126                                 eServiceReference::shouldSort|eServiceReference::sort1,
 127                                 filename);
 128                         service.data[0] = 1;
 129                         list.push_back(service);
 130                 } else
 131                 {
 132                         size_t e = filename.rfind('.');
 133                         std::string extension = (e != std::string::npos) ? filename.substr(e) : "";
 134                         int type = -1;
 135
 136                         if (extension == ".ts")
 137                                 type = eServiceFactoryDVB::id;
 138                         else if (extension == ".mp3")
 139                                 type = 4097;
 140                         else if (extension == ".ogg")
 141                                 type = 4097;
 142                         else if (extension == ".mpg")
 143                                 type = 4097;
 144                         else if (extension == ".vob")
 145                                 type = 4097;
 146                         else if (extension == ".wav" || extension == ".wave")
 147                                 type = 4097;
 148                         else if (extension == ".m3u" || extension == ".pls" || extension == ".e2")
 149                                 type = 4098;
 150
 151                         if (type != -1)
 152                         {
 153                                 eServiceReference service(type,
 154                                         0,
 155                                         filename);
 156                                 service.data[0] = 0;
 157                                 list.push_back(service);
 158                         }
 159                 }
 160         }
 161         closedir(d);
 162
 163         if (sorted)
 164                 list.sort(iListableServiceCompare(this));
 165
 166         return 0;
 167 }
 168
 169 //   The first argument of this function is a format string to specify the order and
 170 //   the content of the returned list
 171 //   useable format options are
 172 //   R = Service Reference (as swig object .. this is very slow)
 173 //   S = Service Reference (as python string object .. same as ref.toString())
 174 //   N = Service Name (as python string object)
 175 //   when exactly one return value per service is selected in the format string,
 176 //   then each value is directly a list entry
 177 //   when more than one value is returned per service, then the list is a list of
 178 //   python tuples
 179 //   unknown format string chars are returned as python None values !
 180 PyObject *eServiceFS::getContent(const char* format, bool sorted)
 181 {
 182         PyObject *ret=0;
 183         std::list<eServiceReference> tmplist;
 184         int retcount=1;
 185
 186         if (!format || !(retcount=strlen(format)))
 187                 format = "R"; // just return service reference swig object ...
 188
 189         if (!getContent(tmplist, sorted))
 190         {
 191                 int services=tmplist.size();
 192                 ePtr<iStaticServiceInformation> sptr;
 193                 eServiceCenterPtr service_center;
 194
 195                 if (strchr(format, 'N'))
 196                         eServiceCenter::getPrivInstance(service_center);
 197
 198                 ret = PyList_New(services);
 199                 std::list<eServiceReference>::iterator it(tmplist.begin());
 200
 201                 for (int cnt=0; cnt < services; ++cnt)
 202                 {
 203                         eServiceReference &ref=*it++;
 204                         PyObject *tuple = retcount > 1 ? PyTuple_New(retcount) : 0;
 205                         for (int i=0; i < retcount; ++i)
 206                         {
 207                                 PyObject *tmp=0;
 208                                 switch(format[i])
 209                                 {
 210                                 case 'R':  // service reference (swig)object
 211                                         tmp = New_eServiceReference(ref);
 212                                         break;
 213                                 case 'S':  // service reference string
 214                                         tmp = PyString_FromString(ref.toString().c_str());
 215                                         break;
 216                                 case 'N':  // service name
 217                                         if (service_center)
 218                                         {
 219                                                 service_center->info(ref, sptr);
 220                                                 if (sptr)
 221                                                 {
 222                                                         std::string name;
 223                                                         sptr->getName(ref, name);
 224                                                         if (name.length())
 225                                                                 tmp = PyString_FromString(name.c_str());
 226                                                 }
 227                                         }
 228                                         if (!tmp)
 229                                                 tmp = PyString_FromString("<n/a>");
 230                                         break;
 231                                 default:
 232                                         if (tuple)
 233                                         {
 234                                                 tmp = Py_None;
 235                                                 Py_INCREF(Py_None);
 236                                         }
 237                                         break;
 238                                 }
 239                                 if (tmp)
 240                                 {
 241                                         if (tuple)
 242                                                 PyTuple_SET_ITEM(tuple, i, tmp);
 243                                         else
 244                                                 PyList_SET_ITEM(ret, cnt, tmp);
 245                                 }
 246                         }
 247                         if (tuple)
 248                                 PyList_SET_ITEM(ret, cnt, tuple);
 249                 }
 250         }
 251         return ret ? ret : PyList_New(0);
 252 }
 253
 254 RESULT eServiceFS::getNext(eServiceReference &ptr)
 255 {
 256         if (!m_list_valid)
 257         {
 258                 m_list_valid = 1;
 259                 int res = getContent(m_list);
 260                 if (res)
 261                         return res;
 262         }
 263
 264         if (!m_list.size())
 265         {
 266                 ptr = eServiceReference();
 267                 return -ERANGE;
 268         }
 269
 270         ptr = m_list.front();
 271         m_list.pop_front();
 272         return 0;
 273 }
 274
 275 int eServiceFS::compareLessEqual(const eServiceReference &a, const eServiceReference &b)
 276 {
 277                 /* directories first */
 278         if ((a.flags & ~b.flags) & eServiceReference::isDirectory)
 279                 return 1;
 280         else if ((~a.flags & b.flags) & eServiceReference::isDirectory)
 281                 return 0;
 282                 /* sort by filename */
 283         else
 284                 return a.path < b.path;
 285 }
 286
 287 RESULT eServiceFS::startEdit(ePtr<iMutableServiceList> &res)
 288 {
 289         res = 0;
 290         return -1;
 291 }
 292
 293 eAutoInitPtr<eServiceFactoryFS> init_eServiceFactoryFS(eAutoInitNumbers::service+1, "eServiceFactoryFS");