src/conversation/test_conversation_api.c

   1 /*
   2      This file is part of GNUnet.
   3      (C) 2013 Christian Grothoff (and other contributing authors)
   4
   5      GNUnet is free software; you can redistribute it and/or modify
   6      it under the terms of the GNU General Public License as published
   7      by the Free Software Foundation; either version 3, or (at your
   8      option) any later version.
   9
  10      GNUnet is distributed in the hope that it will be useful, but
  11      WITHOUT ANY WARRANTY; without even the implied warranty of
  12      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13      General Public License for more details.
  14
  15      You should have received a copy of the GNU General Public License
  16      along with GNUnet; see the file COPYING.  If not, write to the
  17      Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18      Boston, MA 02111-1307, USA.
  19 */
  20 /**
  21  * @file conversation/test_conversation_api.c
  22  * @brief testcase for conversation_api.c
  23  *
  24  * This test performs the operations of a call to a phone
  25  * where the phone user picks up and then the call is
  26  * terminated by the party that initiated the call.
  27  */
  28 #include "platform.h"
  29 #include "gnunet_util_lib.h"
  30 #include "gnunet_testing_lib.h"
  31 #include "gnunet_gnsrecord_lib.h"
  32 #include "gnunet_conversation_service.h"
  33 #include "gnunet_identity_service.h"
  34 #include "gnunet_namestore_service.h"
  35
  36 #define FREQ GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS, 250)
  37
  38 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 25)
  39
  40 static int ok = 1;
  41
  42 static const struct GNUNET_CONFIGURATION_Handle *cfg;
  43
  44 static struct GNUNET_IDENTITY_Handle *id;
  45
  46 static struct GNUNET_IDENTITY_Operation *op;
  47
  48 static struct GNUNET_CONVERSATION_Phone *phone;
  49
  50 static struct GNUNET_NAMESTORE_Handle *ns;
  51
  52 static struct GNUNET_CONVERSATION_Call *call;
  53
  54 static struct GNUNET_NAMESTORE_QueueEntry *qe;
  55
  56 static struct GNUNET_CONVERSATION_Caller *active_caller;
  57
  58 static char *gns_name;
  59
  60 static char *gns_caller_id;
  61
  62 static GNUNET_MICROPHONE_RecordedDataCallback phone_rdc;
  63
  64 static void *phone_rdc_cls;
  65
  66 static GNUNET_MICROPHONE_RecordedDataCallback call_rdc;
  67
  68 static void *call_rdc_cls;
  69
  70 static GNUNET_SCHEDULER_TaskIdentifier phone_task;
  71
  72 static GNUNET_SCHEDULER_TaskIdentifier call_task;
  73
  74
  75 static void
  76 phone_send (void *cls,
  77             const struct GNUNET_SCHEDULER_TaskContext *tc)
  78 {
  79   static unsigned int i;
  80   char buf[32];
  81
  82   GNUNET_assert (NULL != phone_rdc);
  83   GNUNET_snprintf (buf, sizeof (buf), "phone-%u", i++);
  84   phone_rdc (phone_rdc_cls, strlen (buf) + 1, buf);
  85   phone_task = GNUNET_SCHEDULER_add_delayed (FREQ,
  86                                              &phone_send, NULL);
  87 }
  88
  89
  90 static void
  91 call_send (void *cls,
  92             const struct GNUNET_SCHEDULER_TaskContext *tc)
  93 {
  94   static unsigned int i;
  95   char buf[32];
  96
  97   GNUNET_assert (NULL != call_rdc);
  98   GNUNET_snprintf (buf, sizeof (buf), "call-%u", i++);
  99   call_rdc (call_rdc_cls, strlen (buf) + 1, buf);
 100   call_task = GNUNET_SCHEDULER_add_delayed (FREQ,
 101                                             &call_send, NULL);
 102 }
 103
 104
 105 static int
 106 enable_speaker (void *cls)
 107 {
 108   const char *origin = cls;
 109
 110   fprintf (stderr,
 111            "Speaker %s enabled\n",
 112            origin);
 113   return GNUNET_OK;
 114 }
 115
 116
 117 static void
 118 disable_speaker (void *cls)
 119 {
 120   const char *origin = cls;
 121
 122   fprintf (stderr,
 123            "Speaker %s disabled\n",
 124            origin);
 125 }
 126
 127
 128 static void
 129 play (void *cls,
 130       size_t data_size,
 131       const void *data)
 132 {
 133   const char *origin = cls;
 134   static unsigned int phone_i = 1;
 135   static unsigned int call_i;
 136   char buf[32];
 137
 138   if (0 == strcmp (origin, "phone"))
 139     GNUNET_snprintf (buf, sizeof (buf), "call-%u", call_i++);
 140   else
 141     GNUNET_snprintf (buf, sizeof (buf), "phone-%u", phone_i++);
 142   if ( (data_size != strlen (buf) + 1) ||
 143        (0 != strncmp (buf, data, data_size)) )
 144   {
 145     fprintf (stderr,
 146              "Expected %s, received %.*s\n",
 147              buf,
 148              (int) data_size,
 149              (const char *) data);
 150   }
 151   else
 152   {
 153     fprintf (stderr, ".");
 154   }
 155   if ( (20 < call_i) &&
 156        (20 < phone_i) &&
 157        (NULL != call) )
 158   {
 159     /* time to hang up ... */
 160     GNUNET_CONVERSATION_call_stop (call);
 161     call = NULL;
 162   }
 163 }
 164
 165
 166 static void
 167 destroy_speaker (void *cls)
 168 {
 169   const char *origin = cls;
 170
 171   fprintf (stderr, "Speaker %s destroyed\n", origin);
 172 }
 173
 174
 175 static struct GNUNET_SPEAKER_Handle call_speaker = {
 176   &enable_speaker,
 177   &play,
 178   &disable_speaker,
 179   &destroy_speaker,
 180   "caller"
 181 };
 182
 183
 184 static struct GNUNET_SPEAKER_Handle phone_speaker = {
 185   &enable_speaker,
 186   &play,
 187   &disable_speaker,
 188   &destroy_speaker,
 189   "phone"
 190 };
 191
 192
 193 static int
 194 enable_mic (void *cls,
 195             GNUNET_MICROPHONE_RecordedDataCallback rdc,
 196             void *rdc_cls)
 197 {
 198   const char *origin = cls;
 199
 200   fprintf (stderr,
 201            "Mic %s enabled\n",
 202            origin);
 203   if (0 == strcmp (origin, "phone"))
 204   {
 205     phone_rdc = rdc;
 206     phone_rdc_cls = rdc_cls;
 207     phone_task = GNUNET_SCHEDULER_add_now (&phone_send, NULL);
 208   }
 209   else
 210   {
 211     call_rdc = rdc;
 212     call_rdc_cls = rdc_cls;
 213     call_task = GNUNET_SCHEDULER_add_now (&call_send, NULL);
 214   }
 215   return GNUNET_OK;
 216 }
 217
 218
 219 static void
 220 disable_mic (void *cls)
 221 {
 222   const char *origin = cls;
 223
 224   fprintf (stderr,
 225            "Mic %s disabled\n",
 226            origin);
 227   if (0 == strcmp (origin, "phone"))
 228   {
 229     phone_rdc = NULL;
 230     phone_rdc_cls = NULL;
 231     GNUNET_SCHEDULER_cancel (phone_task);
 232     phone_task = GNUNET_SCHEDULER_NO_TASK;
 233   }
 234   else
 235   {
 236     call_rdc = NULL;
 237     call_rdc_cls = NULL;
 238     GNUNET_SCHEDULER_cancel (call_task);
 239     call_task = GNUNET_SCHEDULER_NO_TASK;
 240   }
 241 }
 242
 243
 244 static void
 245 destroy_mic (void *cls)
 246 {
 247   const char *origin = cls;
 248
 249   fprintf (stderr,
 250            "Mic %s destroyed\n",
 251            origin);
 252 }
 253
 254
 255 static struct GNUNET_MICROPHONE_Handle call_mic = {
 256   &enable_mic,
 257   &disable_mic,
 258   &destroy_mic,
 259   "caller"
 260 };
 261
 262
 263 static struct GNUNET_MICROPHONE_Handle phone_mic = {
 264   &enable_mic,
 265   &disable_mic,
 266   &destroy_mic,
 267   "phone"
 268 };
 269
 270
 271 /**
 272  * Signature of the main function of a task.
 273  *
 274  * @param cls closure
 275  * @param tc context information (why was this task triggered now)
 276  */
 277 static void
 278 end_test (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
 279 {
 280   GNUNET_SCHEDULER_shutdown ();
 281   if (NULL != op)
 282   {
 283     GNUNET_IDENTITY_cancel (op);
 284     op = NULL;
 285   }
 286   if (NULL != call)
 287   {
 288     GNUNET_CONVERSATION_call_stop (call);
 289     call = NULL;
 290   }
 291   if (NULL != phone)
 292   {
 293     GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Disconnecting from PHONE service.\n");
 294     GNUNET_CONVERSATION_phone_destroy (phone);
 295     phone = NULL;
 296   }
 297   if (NULL != id)
 298   {
 299     GNUNET_IDENTITY_disconnect (id);
 300     id = NULL;
 301   }
 302   if (NULL != qe)
 303   {
 304     GNUNET_NAMESTORE_cancel (qe);
 305     qe = NULL;
 306   }
 307   if (NULL != ns)
 308   {
 309     GNUNET_NAMESTORE_disconnect (ns);
 310     ns = NULL;
 311   }
 312 }
 313
 314
 315 static void
 316 caller_event_handler (void *cls,
 317                       enum GNUNET_CONVERSATION_CallerEventCode code)
 318 {
 319   switch (code)
 320   {
 321   case GNUNET_CONVERSATION_EC_CALLER_SUSPEND:
 322   case GNUNET_CONVERSATION_EC_CALLER_RESUME:
 323     fprintf (stderr, "Unexpected caller code: %d\n", code);
 324     break;
 325   }
 326 }
 327
 328
 329 static void
 330 phone_event_handler (void *cls,
 331                      enum GNUNET_CONVERSATION_PhoneEventCode code,
 332                      struct GNUNET_CONVERSATION_Caller *caller,
 333                      const char *caller_id)
 334 {
 335   static enum GNUNET_CONVERSATION_PhoneEventCode expect
 336     = GNUNET_CONVERSATION_EC_PHONE_RING;
 337
 338   GNUNET_break (0 == strcmp (caller_id,
 339                              gns_caller_id));
 340   GNUNET_break (code == expect);
 341   switch (code)
 342   {
 343   case GNUNET_CONVERSATION_EC_PHONE_RING:
 344     active_caller = caller;
 345     GNUNET_CONVERSATION_caller_pick_up (caller,
 346                                         &caller_event_handler,
 347                                         NULL,
 348                                         &phone_speaker,
 349                                         &phone_mic);
 350     expect = GNUNET_CONVERSATION_EC_PHONE_HUNG_UP;
 351     break;
 352   case GNUNET_CONVERSATION_EC_PHONE_HUNG_UP:
 353     GNUNET_break (caller == active_caller);
 354     active_caller = NULL;
 355     ok = 0;
 356     GNUNET_SCHEDULER_shutdown ();
 357     break;
 358   default:
 359     fprintf (stderr, "Unexpected phone code: %d\n", code);
 360     break;
 361   }
 362 }
 363
 364
 365 static void
 366 call_event_handler (void *cls,
 367                     enum GNUNET_CONVERSATION_CallEventCode code)
 368 {
 369   static enum GNUNET_CONVERSATION_CallEventCode expect
 370     = GNUNET_CONVERSATION_EC_CALL_RINGING;
 371
 372   GNUNET_break (code == expect);
 373   switch (code)
 374   {
 375   case GNUNET_CONVERSATION_EC_CALL_RINGING:
 376     expect = GNUNET_CONVERSATION_EC_CALL_PICKED_UP;
 377     break;
 378   case GNUNET_CONVERSATION_EC_CALL_PICKED_UP:
 379     expect = -1;
 380     break;
 381   case GNUNET_CONVERSATION_EC_CALL_GNS_FAIL:
 382   case GNUNET_CONVERSATION_EC_CALL_HUNG_UP:
 383     call = NULL;
 384     fprintf (stderr, "Unexpected call code: %d\n", code);
 385     break;
 386   case GNUNET_CONVERSATION_EC_CALL_SUSPENDED:
 387   case GNUNET_CONVERSATION_EC_CALL_RESUMED:
 388   case GNUNET_CONVERSATION_EC_CALL_ERROR:
 389     fprintf (stderr, "Unexpected call code: %d\n", code);
 390     break;
 391   }
 392 }
 393
 394
 395 static void
 396 caller_ego_create_cont (void *cls,
 397                         const char *emsg)
 398 {
 399   op = NULL;
 400   GNUNET_assert (NULL == emsg);
 401 }
 402
 403
 404 static void
 405 namestore_put_cont (void *cls,
 406                     int32_t success,
 407                     const char *emsg)
 408 {
 409   qe = NULL;
 410   GNUNET_assert (GNUNET_YES == success);
 411   GNUNET_assert (NULL == emsg);
 412   GNUNET_assert (NULL == op);
 413   op = GNUNET_IDENTITY_create (id, "caller-ego", &caller_ego_create_cont, NULL);
 414 }
 415
 416
 417 static void
 418 identity_cb (void *cls,
 419              struct GNUNET_IDENTITY_Ego *ego,
 420              void **ctx,
 421              const char *name)
 422 {
 423   struct GNUNET_GNSRECORD_Data rd;
 424   struct GNUNET_CRYPTO_EcdsaPublicKey pub;
 425
 426   if (NULL == name)
 427     return;
 428   if (NULL == ego)
 429     return;
 430   if (0 == strcmp (name, "phone-ego"))
 431   {
 432     GNUNET_IDENTITY_ego_get_public_key (ego, &pub);
 433     GNUNET_asprintf (&gns_name,
 434                      "phone.%s",
 435                      GNUNET_GNSRECORD_pkey_to_zkey (&pub));
 436     phone = GNUNET_CONVERSATION_phone_create (cfg,
 437                                               ego,
 438                                               &phone_event_handler,
 439                                               NULL);
 440     GNUNET_assert (NULL != phone);
 441     memset (&rd, 0, sizeof (rd));
 442     GNUNET_CONVERSATION_phone_get_record (phone,
 443                                           &rd);
 444     GNUNET_assert (rd.record_type == GNUNET_GNSRECORD_TYPE_PHONE);
 445     rd.expiration_time = UINT64_MAX;
 446     qe = GNUNET_NAMESTORE_records_store (ns,
 447                                          GNUNET_IDENTITY_ego_get_private_key (ego),
 448                                          "phone" /* GNS label */,
 449                                          1,
 450                                          &rd,
 451                                          &namestore_put_cont,
 452                                          NULL);
 453     return;
 454   }
 455   if (0 == strcmp (name, "caller-ego"))
 456   {
 457     GNUNET_IDENTITY_ego_get_public_key (ego, &pub);
 458     GNUNET_asprintf (&gns_caller_id,
 459                      "%s",
 460                      GNUNET_GNSRECORD_pkey_to_zkey (&pub));
 461     call = GNUNET_CONVERSATION_call_start (cfg,
 462                                            ego,
 463                                            gns_name,
 464                                            &call_speaker,
 465                                            &call_mic,
 466                                            &call_event_handler,
 467                                            NULL);
 468     return;
 469   }
 470 }
 471
 472
 473 static void
 474 phone_ego_create_cont (void *cls,
 475                        const char *emsg)
 476 {
 477   op = NULL;
 478   GNUNET_assert (NULL == emsg);
 479 }
 480
 481
 482 static void
 483 run (void *cls,
 484      const struct GNUNET_CONFIGURATION_Handle *c,
 485      struct GNUNET_TESTING_Peer *peer)
 486 {
 487   cfg = c;
 488   GNUNET_SCHEDULER_add_delayed (TIMEOUT, &end_test,
 489                                 NULL);
 490   id = GNUNET_IDENTITY_connect (cfg,
 491                                 &identity_cb,
 492                                 NULL);
 493   op = GNUNET_IDENTITY_create (id, "phone-ego", &phone_ego_create_cont, NULL);
 494   ns = GNUNET_NAMESTORE_connect (cfg);
 495 }
 496
 497
 498 int
 499 main (int argc, char *argv[])
 500 {
 501   if (0 != GNUNET_TESTING_peer_run ("test_conversation_api",
 502                                     "test_conversation.conf",
 503                                     &run, NULL))
 504     return 1;
 505   return ok;
 506 }
 507
 508 /* end of test_conversation_api.c */