vompclient.c

   1 /*
   2     Copyright 2004-2008 Chris Tallon
   3
   4     This file is part of VOMP.
   5
   6     VOMP is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     VOMP is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with VOMP; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19 */
  20
  21 #include "vompclient.h"
  22
  23 #include "responsepacket.h"
  24
  25 #ifndef VOMPSTANDALONE
  26 #include <vdr/channels.h>
  27 #include <vdr/recording.h>
  28 #include "recplayer.h"
  29 #include "mvpreceiver.h"
  30 #endif
  31
  32
  33
  34 pthread_mutex_t threadClientMutex;
  35 int VompClient::nr_clients = 0;
  36
  37
  38 VompClient::VompClient(Config* cfgBase, char* tconfigDir, int tsocket)
  39  : rrproc(*this), tcp(tsocket), i18n(tconfigDir)
  40 {
  41 #ifndef VOMPSTANDALONE
  42   lp = NULL;
  43   recplayer = NULL;
  44   recordingManager = NULL;
  45 #endif
  46   imageFile = 0;
  47   log = Log::getInstance();
  48   loggedIn = false;
  49   configDir = tconfigDir;
  50   log->log("Client", Log::DEBUG, "Config dir: %s", configDir);
  51   baseConfig = cfgBase;
  52   incClients();
  53
  54   rrproc.init();
  55 }
  56
  57 VompClient::~VompClient()
  58 {
  59   log->log("Client", Log::DEBUG, "Vomp client destructor");
  60 #ifndef VOMPSTANDALONE
  61   if (lp)
  62   {
  63     delete lp;
  64     lp = NULL;
  65   }
  66   else if (recplayer)
  67   {
  68     writeResumeData();
  69
  70     delete recplayer;
  71     delete recordingManager;
  72     recplayer = NULL;
  73     recordingManager = NULL;
  74   }
  75 #endif
  76   if (loggedIn) cleanConfig();
  77   decClients();
  78 }
  79
  80 void VompClient::incClients()
  81 {
  82   pthread_mutex_lock(&threadClientMutex);
  83   VompClient::nr_clients++;
  84   pthread_mutex_unlock(&threadClientMutex);
  85 }
  86
  87 void VompClient::decClients()
  88 {
  89   pthread_mutex_lock(&threadClientMutex);
  90   VompClient::nr_clients--;
  91   pthread_mutex_unlock(&threadClientMutex);
  92 }
  93
  94 int VompClient::getNrClients()
  95 {
  96   int nrClients;
  97   pthread_mutex_lock(&threadClientMutex);
  98   nrClients = VompClient::nr_clients;
  99   pthread_mutex_unlock(&threadClientMutex);
 100   return nrClients;
 101 }
 102
 103
 104 void VompClient::cleanConfig()
 105 {
 106   log->log("Client", Log::DEBUG, "Clean config");
 107
 108 #ifndef VOMPSTANDALONE
 109
 110   cRecordings Recordings;
 111   Recordings.Load();
 112
 113   int numReturns;
 114   int length;
 115   char* resumes = config.getSectionKeyNames("ResumeData", numReturns, length);
 116   char* position = resumes;
 117   for(int k = 0; k < numReturns; k++)
 118   {
 119     log->log("Client", Log::DEBUG, "EXAMINING: %i %i %p %s", k, numReturns, position, position);
 120
 121     cRecording* recording = Recordings.GetByName(position);
 122     if (!recording)
 123     {
 124       // doesn't exist anymore
 125       log->log("Client", Log::DEBUG, "Found a recording that doesn't exist anymore");
 126       config.deleteValue("ResumeData", position);
 127     }
 128     else
 129     {
 130       log->log("Client", Log::DEBUG, "This recording still exists");
 131     }
 132
 133     position += strlen(position) + 1;
 134   }
 135
 136   delete[] resumes;
 137 #endif
 138 }
 139
 140 void VompClientStartThread(void* arg)
 141 {
 142   VompClient* m = (VompClient*)arg;
 143   m->run2();
 144   // Nothing external to this class has a reference to it
 145   // This is the end of the thread.. so delete m
 146   delete m;
 147   pthread_exit(NULL);
 148 }
 149
 150 int VompClient::run()
 151 {
 152   if (pthread_create(&runThread, NULL, (void*(*)(void*))VompClientStartThread, (void *)this) == -1) return 0;
 153   log->log("Client", Log::DEBUG, "VompClient run success");
 154   return 1;
 155 }
 156
 157 void VompClient::run2()
 158 {
 159   // Thread stuff
 160   sigset_t sigset;
 161   sigfillset(&sigset);
 162   pthread_sigmask(SIG_BLOCK, &sigset, NULL);
 163   pthread_detach(runThread);  // Detach
 164
 165   tcp.disableReadTimeout();
 166
 167   tcp.setSoKeepTime(3);
 168   tcp.setNonBlocking();
 169
 170   ULONG channelID;
 171   ULONG requestID;
 172   ULONG opcode;
 173   ULONG extraDataLength;
 174   UCHAR* data;
 175
 176   ULONG kaTimeStamp;
 177
 178   while(1)
 179   {
 180     log->log("Client", Log::DEBUG, "Waiting");
 181
 182     if (!tcp.readData((UCHAR*)&channelID, sizeof(ULONG))) break;
 183     channelID = ntohl(channelID);
 184     if (channelID == 1)
 185     {
 186       if (!tcp.readData((UCHAR*)&requestID, sizeof(ULONG))) break;
 187       requestID = ntohl(requestID);
 188
 189       if (!tcp.readData((UCHAR*)&opcode, sizeof(ULONG))) break;
 190       opcode = ntohl(opcode);
 191
 192       if (!tcp.readData((UCHAR*)&extraDataLength, sizeof(ULONG))) break;
 193       extraDataLength = ntohl(extraDataLength);
 194       if (extraDataLength > 200000) // a random sanity limit
 195       {
 196         log->log("Client", Log::ERR, "ExtraDataLength > 200000!");
 197         break;
 198       }
 199
 200       if (extraDataLength)
 201       {
 202         data = (UCHAR*)malloc(extraDataLength);
 203         if (!data)
 204         {
 205           log->log("Client", Log::ERR, "Extra data buffer malloc error");
 206           break;
 207         }
 208
 209         if (!tcp.readData(data, extraDataLength))
 210         {
 211           log->log("Client", Log::ERR, "Could not read extradata");
 212           free(data);
 213           break;
 214         }
 215       }
 216       else
 217       {
 218         data = NULL;
 219       }
 220
 221       log->log("Client", Log::DEBUG, "Received chan=%lu, ser=%lu, op=%lu, edl=%lu", channelID, requestID, opcode, extraDataLength);
 222
 223       if (!loggedIn && (opcode != 1))
 224       {
 225         log->log("Client", Log::ERR, "Not logged in and opcode != 1");
 226         if (data) free(data);
 227         break;
 228       }
 229
 230       RequestPacket* req = new RequestPacket(requestID, opcode, data, extraDataLength);
 231       rrproc.recvRequest(req);
 232     }
 233     else if (channelID == 3)
 234     {
 235       if (!tcp.readData((UCHAR*)&kaTimeStamp, sizeof(ULONG))) break;
 236       kaTimeStamp = ntohl(kaTimeStamp);
 237
 238       log->log("Client", Log::DEBUG, "Received chan=%lu kats=%lu", channelID, kaTimeStamp);
 239
 240       UCHAR buffer[8];
 241       *(ULONG*)&buffer[0] = htonl(3); // KA CHANNEL
 242       *(ULONG*)&buffer[4] = htonl(kaTimeStamp);
 243       if (!tcp.sendPacket(buffer, 8))
 244       {
 245         log->log("Client", Log::ERR, "Could not send back KA reply");
 246         break;
 247       }
 248     }
 249     else
 250     {
 251       log->log("Client", Log::ERR, "Incoming channel number unknown");
 252       break;
 253     }
 254   }
 255 }
 256
 257 ULLONG VompClient::ntohll(ULLONG a)
 258 {
 259   return htonll(a);
 260 }
 261
 262 ULLONG VompClient::htonll(ULLONG a)
 263 {
 264   #if BYTE_ORDER == BIG_ENDIAN
 265     return a;
 266   #else
 267     ULLONG b = 0;
 268
 269     b = ((a << 56) & 0xFF00000000000000ULL)
 270       | ((a << 40) & 0x00FF000000000000ULL)
 271       | ((a << 24) & 0x0000FF0000000000ULL)
 272       | ((a <<  8) & 0x000000FF00000000ULL)
 273       | ((a >>  8) & 0x00000000FF000000ULL)
 274       | ((a >> 24) & 0x0000000000FF0000ULL)
 275       | ((a >> 40) & 0x000000000000FF00ULL)
 276       | ((a >> 56) & 0x00000000000000FFULL) ;
 277
 278     return b;
 279   #endif
 280 }
 281
 282 #ifndef VOMPSTANDALONE
 283
 284 cChannel* VompClient::channelFromNumber(ULONG channelNumber)
 285 {
 286   cChannel* channel = NULL;
 287
 288   for (channel = Channels.First(); channel; channel = Channels.Next(channel))
 289   {
 290     if (!channel->GroupSep())
 291     {
 292       log->log("Client", Log::DEBUG, "Looking for channel %lu::: number: %i name: '%s'", channelNumber, channel->Number(), channel->Name());
 293
 294       if (channel->Number() == (int)channelNumber)
 295       {
 296         int vpid = channel->Vpid();
 297 #if VDRVERSNUM < 10300
 298         int apid1 = channel->Apid1();
 299 #else
 300         int apid1 = channel->Apid(0);
 301 #endif
 302         log->log("Client", Log::DEBUG, "Found channel number %lu, vpid = %i, apid1 = %i", channelNumber, vpid, apid1);
 303         return channel;
 304       }
 305     }
 306   }
 307
 308   if (!channel)
 309   {
 310     log->log("Client", Log::DEBUG, "Channel not found");
 311   }
 312
 313   return channel;
 314 }
 315
 316 void VompClient::writeResumeData()
 317 {
 318   config.setValueLong("ResumeData",
 319                           (char*)recplayer->getCurrentRecording()->FileName(),
 320                           recplayer->frameNumberFromPosition(recplayer->getLastPosition()) );
 321 }
 322
 323 #endif
 324