vbox.cpp

   1 /*****************************************************************************\
   2 **                                                                           **
   3 ** Linux Call Router                                                         **
   4 **                                                                           **
   5 **---------------------------------------------------------------------------**
   6 ** Copyright: Andreas Eversberg                                              **
   7 **                                                                           **
   8 ** answering machine port                                                    **
   9 **                                                                           **
  10 ** this is a child of the port class, which emulates the recorder function   **
  11 ** of an answering machine                                                   **
  12 ** it will directly answer to the setup message with a connect               **
  13 **                                                                           **
  14 \*****************************************************************************/
  15
  16 #include <stdio.h>
  17 #include <string.h>
  18 #include <stdlib.h>
  19 #include <unistd.h>
  20 #include <poll.h>
  21 #include <errno.h>
  22 #include <sys/ioctl.h>
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <fcntl.h>
  26 #include "main.h"
  27
  28 /* note: recording log is written at endpoint */
  29
  30 /*
  31  * initialize vbox port
  32  */
  33 VBoxPort::VBoxPort(int type, struct port_settings *settings) : Port(type, "vbox", settings)
  34 {
  35         p_vbox_timeout = 0;
  36         p_vbox_announce_fh = -1;
  37         p_vbox_audio_start = 0;
  38         p_vbox_audio_transferred = 0;
  39         p_vbox_record_start = 0;
  40         p_vbox_record_limit = 0;
  41 }
  42
  43
  44 /*
  45  * destructor
  46  */
  47 VBoxPort::~VBoxPort()
  48 {
  49         if (p_vbox_announce_fh >= 0)
  50         {
  51                 close(p_vbox_announce_fh);
  52                 p_vbox_announce_fh = -1;
  53                 fhuse--;
  54         }
  55 }
  56
  57
  58 /*
  59  * handler of vbox
  60  */
  61 int VBoxPort::handler(void)
  62 {
  63         struct message  *message;
  64         unsigned long   tosend;
  65         unsigned char   buffer[ISDN_TRANSMIT];
  66         time_t          currenttime;
  67         class Endpoint  *epoint;
  68         int             ret;
  69
  70         if ((ret = Port::handler()))
  71                 return(ret);
  72
  73         if (p_vbox_record_start && p_vbox_record_limit)
  74         {
  75                 time(&currenttime);
  76                 if (currenttime > (p_vbox_record_limit+p_vbox_record_start))
  77                 {
  78                         while(p_epointlist)
  79                         {
  80                                 /* send release */
  81                                 message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
  82                                 message->param.disconnectinfo.cause = 16;
  83                                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
  84                                 message_put(message);
  85                                 /* remove epoint */
  86                                 free_epointlist(p_epointlist);
  87                         }
  88                         /* recording is close during destruction */
  89                         delete this;
  90                         return(-1); /* must return because port is gone */
  91                 }
  92         }
  93
  94         /* set time the first time */
  95         if (p_vbox_audio_start < 1)
  96         {
  97                 p_vbox_audio_start = now_d;
  98                 return(0);
  99         }
 100
 101         /* calculate the number of bytes */
 102         tosend = (unsigned long)((now_d-p_vbox_audio_start)*8000) - p_vbox_audio_transferred;
 103
 104         /* wait for more */
 105         if (tosend < sizeof(buffer))
 106                 return(0);
 107         tosend = sizeof(buffer);
 108
 109         /* add the number of samples elapsed */
 110         p_vbox_audio_transferred += tosend;
 111
 112         /* if announcement is currently played, send audio data */
 113         if (p_vbox_announce_fh >=0)
 114         {
 115                 tosend = read_tone(p_vbox_announce_fh, buffer, p_vbox_announce_codec, tosend, p_vbox_announce_size, &p_vbox_announce_left, 1);
 116                 if (tosend <= 0)
 117                 {
 118                         /* end of file */
 119                         close(p_vbox_announce_fh);
 120                         p_vbox_announce_fh = -1;
 121                         fhuse--;
 122
 123                         time(&currenttime);
 124                         p_vbox_record_start = currenttime;
 125
 126                         /* connect if not already */
 127                         epoint = find_epoint_id(ACTIVE_EPOINT(p_epointlist));
 128                         if (epoint)
 129                         {
 130                                 /* if we sent our announcement during ringing, we must now connect */
 131                                 if (p_vbox_ext.vbox_free)
 132                                 {
 133                                         /* send connect message */
 134                                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_CONNECT);
 135                                         memcpy(&message->param.connectinfo, &p_connectinfo, sizeof(struct connect_info));
 136                                         message_put(message);
 137                                         new_state(PORT_STATE_CONNECT);
 138                                 }
 139                         }
 140
 141                         /* start recording, if not already */
 142                         if (p_vbox_mode == VBOX_MODE_NORMAL)
 143                         {
 144                                 /* recording start */
 145                                 open_record(p_vbox_ext.vbox_codec, 2, 0, p_vbox_ext.number, p_vbox_ext.anon_ignore, p_vbox_ext.vbox_email, p_vbox_ext.vbox_email_file);
 146                         } else // else!!
 147                         if (p_vbox_mode == VBOX_MODE_ANNOUNCEMENT)
 148                         {
 149                                 /* send release */
 150                                 message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_RELEASE);
 151                                 message->param.disconnectinfo.cause = 16;
 152                                 message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 153                                 message_put(message);
 154                                 /* recording is close during destruction */
 155                                 delete this;
 156                                 return(-1); /* must return because port is gone */
 157                         }
 158                 } else
 159                 {
 160                         if (p_record)
 161                                 record(buffer, tosend, 0); // from down
 162                         message = message_create(p_serial, ACTIVE_EPOINT(p_epointlist), PORT_TO_EPOINT, MESSAGE_DATA);
 163                         message->param.data.len = tosend;
 164                         memcpy(message->param.data.data, buffer, tosend);
 165                         message_put(message);
 166                 }
 167         }
 168
 169         return(1);
 170 }
 171
 172
 173 /*
 174  * endpoint sends messages to the vbox port
 175  */
 176 int VBoxPort::message_epoint(unsigned long epoint_id, int message_id, union parameter *param)
 177 {
 178         struct message *message;
 179         class Endpoint *epoint;
 180         char filename[256], *c;
 181
 182         if (Port::message_epoint(epoint_id, message_id, param))
 183                 return(1);
 184
 185         epoint = find_epoint_id(epoint_id);
 186         if (!epoint)
 187         {
 188                 PDEBUG(DEBUG_EPOINT|DEBUG_VBOX, "PORT(%s) no endpoint object found where the message is from.\n", p_name);
 189                 return(0);
 190         }
 191
 192         switch(message_id)
 193         {
 194                 case MESSAGE_DATA:
 195                 record(param->data.data, param->data.len, 1); // from up
 196                 return(1);
 197
 198                 case MESSAGE_DISCONNECT: /* call has been disconnected */
 199                 PDEBUG(DEBUG_VBOX, "PORT(%s) vbox port with (caller id %s) received disconnect cause=%d\n", p_name, p_callerinfo.id, param->disconnectinfo.cause);
 200
 201                 new_state(PORT_STATE_OUT_DISCONNECT);
 202
 203                 while(p_epointlist)
 204                 {
 205                         message = message_create(p_serial, p_epointlist->epoint_id, PORT_TO_EPOINT, MESSAGE_RELEASE);
 206                         message->param.disconnectinfo.cause = CAUSE_NORMAL;
 207                         message->param.disconnectinfo.location = LOCATION_PRIVATE_LOCAL;
 208                         message_put(message);
 209                         /* remove epoint */
 210                         free_epointlist(p_epointlist);
 211                 }
 212                 /* recording is close during destruction */
 213                 delete this;
 214                 return(-1); /* must return because port is gone */
 215                 break;
 216
 217                 case MESSAGE_RELEASE: /* release vbox port */
 218                 PDEBUG(DEBUG_VBOX, "PORT(%s) vbox port with (caller id %s) received release\n", p_name, p_callerinfo.id);
 219
 220                 /* we are done */
 221                 /* recording is close during destruction */
 222                 delete this;
 223                 return(-1); /* must return because port is gone */
 224                 break;
 225
 226                 case MESSAGE_SETUP: /* dial-out command received from epoint, answer with connect */
 227                 /* get apppbx */
 228                 memcpy(&p_vbox_ext, &((class EndpointAppPBX *)(epoint->ep_app))->e_ext, sizeof(p_vbox_ext));
 229                 /* extract optional announcement file */
 230                 if ((c = strchr(param->setup.dialinginfo.id, ',')))
 231                 {
 232                         if (c[1] == '/')
 233                                 SPRINT(filename, c+1);
 234                         else
 235                                 SPRINT(filename, "%s/%s/%s/vbox/%s", INSTALL_DATA, options.extensions_dir, p_vbox_ext.number);
 236                         *c = '\0';
 237                 } else
 238                 {
 239                         SPRINT(filename, "%s/%s/%s/vbox/announcement", INSTALL_DATA, options.extensions_dir, p_vbox_ext.number);
 240                 }
 241                 PDEBUG(DEBUG_VBOX, "PORT(%s) vbox port received setup from '%s' to '%s'\n", p_name, param->setup.callerinfo.id, param->setup.dialinginfo.id);
 242                 memcpy(&p_callerinfo, &param->setup.callerinfo, sizeof(p_callerinfo));
 243                 memcpy(&p_redirinfo, &param->setup.redirinfo, sizeof(p_redirinfo));
 244                 /* link relation */
 245                 if (p_epointlist)
 246                         FATAL("PORT(%s) Epoint pointer is set in idle state, how bad!!\n", p_name);
 247                 epointlist_new(epoint_id);
 248
 249                 /* copy setup infos to port */
 250                 SCPY(p_vbox_extension, param->setup.dialinginfo.id);
 251
 252                 /* create connect info */
 253                 SCPY(p_connectinfo.id, p_vbox_extension);
 254                 p_connectinfo.itype = INFO_ITYPE_VBOX;
 255                 p_connectinfo.present = INFO_PRESENT_ALLOWED;
 256                 p_connectinfo.screen = INFO_SCREEN_NETWORK;
 257
 258                 /* connect unless we can send announcement while ringing */
 259                 if (!p_vbox_ext.vbox_free)
 260                 {
 261                         /* send connect message */
 262                         message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_CONNECT);
 263                         memcpy(&message->param.connectinfo, &p_connectinfo, sizeof(struct connect_info));
 264                         message_put(message);
 265                         new_state(PORT_STATE_CONNECT);
 266                 } else
 267                 {
 268                         /* send alerting message */
 269                         message = message_create(p_serial, epoint_id, PORT_TO_EPOINT, MESSAGE_ALERTING);
 270                         message_put(message);
 271                         new_state(PORT_STATE_IN_ALERTING);
 272                 }
 273
 274                 /* play the announcement */
 275                 if ((p_vbox_announce_fh = open_tone(filename, &p_vbox_announce_codec, &p_vbox_announce_size, &p_vbox_announce_left)) >= 0)
 276                 {
 277                         fhuse++;
 278                 }
 279                 /* start recording if desired */
 280                 p_vbox_mode = p_vbox_ext.vbox_mode;
 281                 p_vbox_record_limit = p_vbox_ext.vbox_time;
 282                 if (!p_vbox_announce_fh || p_vbox_mode==VBOX_MODE_PARALLEL)
 283                 {
 284                         PDEBUG(DEBUG_VBOX, "PORT(%s) parallel mode OR no announcement found at: '%s' so we start recording now.\n", p_name, filename);
 285                         /* recording start */
 286                         open_record(p_vbox_ext.vbox_codec, 2, 0, p_vbox_ext.number, p_vbox_ext.anon_ignore, p_vbox_ext.vbox_email, p_vbox_ext.vbox_email_file);
 287                 }
 288                 break;
 289
 290                 default:
 291                 PDEBUG(DEBUG_VBOX, "PORT(%s) vbox port with (caller id %s) received an unsupported message: %d\n", p_name, p_callerinfo.id, message_id);
 292         }
 293
 294         return(0);
 295 }
 296
 297