src/identity-provider/gnunet-idp.c

   1 /*
   2    This file is part of GNUnet.
   3    Copyright (C) 2012-2015 GNUnet e.V.
   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., 51 Franklin Street, Fifth Floor,
  18    Boston, MA 02110-1301, USA.
  19    */
  20 /**
  21  * @author Martin Schanzenbach
  22  * @file src/identity-provider/gnunet-idp.c
  23  * @brief Identity Provider utility
  24  *
  25  */
  26
  27 #include "platform.h"
  28 #include "gnunet_util_lib.h"
  29 #include "gnunet_namestore_service.h"
  30 #include "gnunet_identity_provider_service.h"
  31 #include "gnunet_identity_service.h"
  32 #include "gnunet_signatures.h"
  33
  34 /**
  35  * return value
  36  */
  37 static int ret;
  38
  39 /**
  40  * List attribute flag
  41  */
  42 static int list;
  43
  44 /**
  45  * Relying party
  46  */
  47 static char* rp;
  48
  49 /**
  50  * The attribute
  51  */
  52 static char* attr_name;
  53
  54 /**
  55  * Attribute value
  56  */
  57 static char* attr_value;
  58
  59 /**
  60  * Attributes to issue
  61  */
  62 static char* issue_attrs;
  63
  64 /**
  65  * Ticket to consume
  66  */
  67 static char* consume_ticket;
  68
  69 /**
  70  * Attribute type
  71  */
  72 static char* type_str;
  73
  74 /**
  75  * Ticket to revoke
  76  */
  77 static char* revoke_ticket;
  78
  79 /**
  80  * Ego name
  81  */
  82 static char* ego_name;
  83
  84 /**
  85  * Identity handle
  86  */
  87 static struct GNUNET_IDENTITY_Handle *identity_handle;
  88
  89 /**
  90  * IdP handle
  91  */
  92 static struct GNUNET_IDENTITY_PROVIDER_Handle *idp_handle;
  93
  94 /**
  95  * IdP operation
  96  */
  97 static struct GNUNET_IDENTITY_PROVIDER_Operation *idp_op;
  98
  99 /**
 100  * Attribute iterator
 101  */
 102 static struct GNUNET_IDENTITY_PROVIDER_AttributeIterator *attr_iterator;
 103
 104 /**
 105  * Master ABE key
 106  */
 107 static struct GNUNET_CRYPTO_AbeMasterKey *abe_key;
 108
 109 /**
 110  * ego private key
 111  */
 112 static const struct GNUNET_CRYPTO_EcdsaPrivateKey *pkey;
 113
 114 /**
 115  * rp public key
 116  */
 117 static struct GNUNET_CRYPTO_EcdsaPublicKey rp_key;
 118
 119 /**
 120  * Ticket to consume
 121  */
 122 static struct GNUNET_IDENTITY_PROVIDER_Ticket ticket;
 123
 124 /**
 125  * Attribute list
 126  */
 127 static struct GNUNET_IDENTITY_ATTRIBUTE_ClaimList *attr_list;
 128
 129 /**
 130  * Attribute expiration interval
 131  */
 132 static struct GNUNET_TIME_Relative exp_interval;
 133
 134 /**
 135  * Timeout task
 136  */
 137 static struct GNUNET_SCHEDULER_Task *timeout;
 138
 139 static void
 140 do_cleanup(void *cls)
 141 {
 142   if (NULL != timeout)
 143     GNUNET_SCHEDULER_cancel (timeout);
 144   if (NULL != idp_op)
 145     GNUNET_IDENTITY_PROVIDER_cancel (idp_op);
 146   if (NULL != attr_iterator)
 147     GNUNET_IDENTITY_PROVIDER_get_attributes_stop (attr_iterator);
 148   if (NULL != idp_handle)
 149     GNUNET_IDENTITY_PROVIDER_disconnect (idp_handle);
 150   if (NULL != identity_handle)
 151     GNUNET_IDENTITY_disconnect (identity_handle);
 152   if (NULL != abe_key)
 153     GNUNET_free (abe_key);
 154   if (NULL != attr_list)
 155     GNUNET_free (attr_list);
 156 }
 157
 158 static void
 159 ticket_issue_cb (void* cls,
 160                  const struct GNUNET_IDENTITY_PROVIDER_Ticket *ticket)
 161 {
 162   char* ticket_str;
 163   idp_op = NULL;
 164   if (NULL != ticket) {
 165     ticket_str = GNUNET_STRINGS_data_to_string_alloc (ticket,
 166                                                       sizeof (struct GNUNET_IDENTITY_PROVIDER_Ticket));
 167     printf("%s\n",
 168            ticket_str);
 169     GNUNET_free (ticket_str);
 170   }
 171   GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 172 }
 173
 174 static void
 175 store_attr_cont (void *cls,
 176                  int32_t success,
 177                  const char*emsg)
 178 {
 179   idp_op = NULL;
 180   if (GNUNET_SYSERR == success) {
 181     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 182                 "%s\n", emsg);
 183   }
 184   GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 185 }
 186
 187 static void
 188 process_attrs (void *cls,
 189          const struct GNUNET_CRYPTO_EcdsaPublicKey *identity,
 190          const struct GNUNET_IDENTITY_ATTRIBUTE_Claim *attr)
 191 {
 192   char *value_str;
 193   if (NULL == identity)
 194   {
 195     idp_op = NULL;
 196     GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 197     return;
 198   }
 199   if (NULL == attr)
 200   {
 201     ret = 1;
 202     return;
 203   }
 204   value_str = GNUNET_IDENTITY_ATTRIBUTE_value_to_string (attr->type,
 205                                                      attr->data,
 206                                                      attr->data_size);
 207   GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
 208               "%s: %s\n", attr->name, value_str);
 209 }
 210
 211
 212 static void
 213 iter_error (void *cls)
 214 {
 215   attr_iterator = NULL;
 216   GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
 217               "Failed to iterate over attributes\n");
 218   GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 219 }
 220
 221 static void
 222 timeout_task (void *cls)
 223 {
 224   timeout = NULL;
 225   ret = 1;
 226   GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
 227               "Timeout\n");
 228   GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 229 }
 230
 231 static void
 232 process_rvk (void *cls, int success, const char* msg)
 233 {
 234   idp_op = NULL;
 235   if (GNUNET_OK != success)
 236   {
 237     GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
 238                 "Revocation failed.\n");
 239     ret = 1;
 240   }
 241   GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 242 }
 243
 244 static void
 245 iter_finished (void *cls)
 246 {
 247   struct GNUNET_IDENTITY_ATTRIBUTE_Claim *claim;
 248   char *data;
 249   size_t data_size;
 250   int type;
 251
 252   attr_iterator = NULL;
 253   if (list)
 254   {
 255     GNUNET_SCHEDULER_add_now (&do_cleanup, NULL);
 256     return;
 257   }
 258
 259   if (issue_attrs)
 260   {
 261     idp_op = GNUNET_IDENTITY_PROVIDER_ticket_issue (idp_handle,
 262                                                     pkey,
 263                                                     &rp_key,
 264                                                     attr_list,
 265                                                     &ticket_issue_cb,
 266                                                     NULL);
 267     return;
 268   }
 269   if (consume_ticket)
 270   {
 271     idp_op = GNUNET_IDENTITY_PROVIDER_ticket_consume (idp_handle,
 272                                                       pkey,
 273                                                       &ticket,
 274                                                       &process_attrs,
 275                                                       NULL);
 276     timeout = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 10),
 277                                             &timeout_task,
 278                                             NULL);
 279     return;
 280   }
 281   if (revoke_ticket)
 282   {
 283     idp_op = GNUNET_IDENTITY_PROVIDER_ticket_revoke (idp_handle,
 284                                                      pkey,
 285                                                      &ticket,
 286                                                      &process_rvk,
 287                                                      NULL);
 288     return;
 289   }
 290   if (NULL == type_str)
 291     type = GNUNET_IDENTITY_ATTRIBUTE_TYPE_STRING;
 292   else
 293     type = GNUNET_IDENTITY_ATTRIBUTE_typename_to_number (type_str);
 294
 295   GNUNET_assert (GNUNET_SYSERR != GNUNET_IDENTITY_ATTRIBUTE_string_to_value (type,
 296                                              attr_value,
 297                                              (void**)&data,
 298                                              &data_size));
 299   claim = GNUNET_IDENTITY_ATTRIBUTE_claim_new (attr_name,
 300                                                type,
 301                                                data,
 302                                                data_size);
 303   idp_op = GNUNET_IDENTITY_PROVIDER_attribute_store (idp_handle,
 304                                                      pkey,
 305                                                      claim,
 306                                                      &exp_interval,
 307                                                      &store_attr_cont,
 308                                                      NULL);
 309
 310
 311 }
 312
 313 static void
 314 iter_cb (void *cls,
 315          const struct GNUNET_CRYPTO_EcdsaPublicKey *identity,
 316          const struct GNUNET_IDENTITY_ATTRIBUTE_Claim *attr)
 317 {
 318   struct GNUNET_IDENTITY_ATTRIBUTE_ClaimListEntry *le;
 319   char *attrs_tmp;
 320   char *attr_str;
 321
 322   if (issue_attrs)
 323   {
 324     attrs_tmp = GNUNET_strdup (issue_attrs);
 325     attr_str = strtok (attrs_tmp, ",");
 326     while (NULL != attr_str) {
 327       if (0 != strcmp (attr_str, attr->name)) {
 328         attr_str = strtok (NULL, ",");
 329         continue;
 330       }
 331       le = GNUNET_new (struct GNUNET_IDENTITY_ATTRIBUTE_ClaimListEntry);
 332       le->claim = GNUNET_IDENTITY_ATTRIBUTE_claim_new (attr->name,
 333                                                        attr->type,
 334                                                        attr->data,
 335                                                        attr->data_size);
 336       GNUNET_CONTAINER_DLL_insert (attr_list->list_head,
 337                                    attr_list->list_tail,
 338                                    le);
 339       break;
 340     }
 341     GNUNET_free (attrs_tmp);
 342   } else if (list) {
 343     GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
 344                 "%s: %s\n", attr->name, (char*)attr->data);
 345   }
 346   GNUNET_IDENTITY_PROVIDER_get_attributes_next (attr_iterator);
 347 }
 348
 349 static void
 350 ego_cb (void *cls,
 351         struct GNUNET_IDENTITY_Ego *ego,
 352         void **ctx,
 353         const char *name)
 354 {
 355   if (NULL == name)
 356     return;
 357   if (0 != strcmp (name, ego_name))
 358     return;
 359   pkey = GNUNET_IDENTITY_ego_get_private_key (ego);
 360
 361   if (NULL != rp)
 362     GNUNET_CRYPTO_ecdsa_public_key_from_string (rp,
 363                                                 strlen (rp),
 364                                                 &rp_key);
 365   if (NULL != consume_ticket)
 366     GNUNET_STRINGS_string_to_data (consume_ticket,
 367                                    strlen (consume_ticket),
 368                                    &ticket,
 369                                    sizeof (struct GNUNET_IDENTITY_PROVIDER_Ticket));
 370   if (NULL != revoke_ticket)
 371     GNUNET_STRINGS_string_to_data (revoke_ticket,
 372                                    strlen (revoke_ticket),
 373                                    &ticket,
 374                                    sizeof (struct GNUNET_IDENTITY_PROVIDER_Ticket));
 375
 376
 377   attr_list = GNUNET_new (struct GNUNET_IDENTITY_ATTRIBUTE_ClaimList);
 378
 379   attr_iterator = GNUNET_IDENTITY_PROVIDER_get_attributes_start (idp_handle,
 380                                                                  pkey,
 381                                                                  &iter_error,
 382                                                                  NULL,
 383                                                                  &iter_cb,
 384                                                                  NULL,
 385                                                                  &iter_finished,
 386                                                                  NULL);
 387
 388
 389 }
 390
 391 static void
 392 run (void *cls,
 393      char *const *args,
 394      const char *cfgfile,
 395      const struct GNUNET_CONFIGURATION_Handle *c)
 396 {
 397   ret = 0;
 398   if (NULL == ego_name)
 399   {
 400     GNUNET_log (GNUNET_ERROR_TYPE_MESSAGE,
 401                 _("Ego is required\n"));
 402     return;
 403   }
 404
 405   idp_handle = GNUNET_IDENTITY_PROVIDER_connect (c);
 406   //Get Ego
 407   identity_handle = GNUNET_IDENTITY_connect (c,
 408                                              &ego_cb,
 409                                              NULL);
 410
 411
 412 }
 413
 414
 415 int
 416 main(int argc, char *const argv[])
 417 {
 418   exp_interval = GNUNET_TIME_UNIT_HOURS;
 419   struct GNUNET_GETOPT_CommandLineOption options[] = {
 420
 421     GNUNET_GETOPT_option_string ('a',
 422                                  "add",
 423                                  NULL,
 424                                  gettext_noop ("Add attribute"),
 425                                  &attr_name),
 426
 427     GNUNET_GETOPT_option_string ('V',
 428                                  "value",
 429                                  NULL,
 430                                  gettext_noop ("Attribute value"),
 431                                  &attr_value),
 432     GNUNET_GETOPT_option_string ('e',
 433                                  "ego",
 434                                  NULL,
 435                                  gettext_noop ("Ego"),
 436                                  &ego_name),
 437     GNUNET_GETOPT_option_string ('r',
 438                                  "rp",
 439                                  NULL,
 440                                  gettext_noop ("Audience (relying party)"),
 441                                  &rp),
 442     GNUNET_GETOPT_option_flag ('D',
 443                                "dump",
 444                                gettext_noop ("List attributes for Ego"),
 445                                &list),
 446     GNUNET_GETOPT_option_string ('i',
 447                                  "issue",
 448                                  NULL,
 449                                  gettext_noop ("Issue a ticket"),
 450                                  &issue_attrs),
 451     GNUNET_GETOPT_option_string ('C',
 452                                  "consume",
 453                                  NULL,
 454                                  gettext_noop ("Consume a ticket"),
 455                                  &consume_ticket),
 456     GNUNET_GETOPT_option_string ('R',
 457                                  "revoke",
 458                                  NULL,
 459                                  gettext_noop ("Revoke a ticket"),
 460                                  &revoke_ticket),
 461     GNUNET_GETOPT_option_string ('t',
 462                                  "type",
 463                                  NULL,
 464                                  gettext_noop ("Type of attribute"),
 465                                  &type_str),
 466     GNUNET_GETOPT_option_relative_time ('E',
 467                                         "expiration",
 468                                         NULL,
 469                                         gettext_noop ("Expiration interval of the attribute"),
 470                                         &exp_interval),
 471
 472     GNUNET_GETOPT_OPTION_END
 473   };
 474   if (GNUNET_OK != GNUNET_PROGRAM_run (argc, argv, "ct",
 475                       "ct", options,
 476                       &run, NULL))
 477     return 1;
 478   else
 479     return ret;
 480 }