2 This file is part of GNUnet.
3 Copyright (C) 2012-2015 GNUnet e.V.
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
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 Affero General Public License for more details.
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
18 SPDX-License-Identifier: AGPL3.0-or-later
21 * @author Martin Schanzenbach
22 * @author Philippe Buschmann
23 * @file reclaim/plugin_rest_reclaim.c
24 * @brief GNUnet reclaim REST plugin
28 #include "microhttpd.h"
31 #include "gnunet_gns_service.h"
32 #include "gnunet_gnsrecord_lib.h"
33 #include "gnunet_identity_service.h"
34 #include "gnunet_reclaim_attribute_lib.h"
35 #include "gnunet_reclaim_service.h"
36 #include "gnunet_rest_lib.h"
37 #include "gnunet_rest_plugin.h"
38 #include "gnunet_signatures.h"
39 #include "json_reclaim.h"
44 #define GNUNET_REST_API_NS_RECLAIM "/reclaim"
49 #define GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES "/reclaim/attributes"
54 #define GNUNET_REST_API_NS_IDENTITY_TICKETS "/reclaim/tickets"
59 #define GNUNET_REST_API_NS_IDENTITY_REVOKE "/reclaim/revoke"
64 #define GNUNET_REST_API_NS_IDENTITY_CONSUME "/reclaim/consume"
67 * State while collecting all egos
69 #define ID_REST_STATE_INIT 0
72 * Done collecting egos
74 #define ID_REST_STATE_POST_INIT 1
77 * The configuration handle
79 const struct GNUNET_CONFIGURATION_Handle *cfg;
82 * HTTP methods allows for this plugin
84 static char *allow_methods;
87 * @brief struct returned by the initialization function of the plugin
91 const struct GNUNET_CONFIGURATION_Handle *cfg;
102 struct EgoEntry *next;
107 struct EgoEntry *prev;
122 struct GNUNET_IDENTITY_Ego *ego;
131 struct EgoEntry *ego_head;
136 struct EgoEntry *ego_tail;
141 struct EgoEntry *ego_entry;
144 * Pointer to ego private key
146 struct GNUNET_CRYPTO_EcdsaPrivateKey priv_key;
149 * The processing state
154 * Handle to Identity service.
156 struct GNUNET_IDENTITY_Handle *identity_handle;
161 struct GNUNET_REST_RequestHandle *rest_handle;
164 * Attribute claim list
166 struct GNUNET_RECLAIM_ATTRIBUTE_ClaimList *attr_list;
171 struct GNUNET_IDENTITY_Operation *op;
176 struct GNUNET_RECLAIM_Handle *idp;
181 struct GNUNET_RECLAIM_Operation *idp_op;
186 struct GNUNET_RECLAIM_AttributeIterator *attr_it;
191 struct GNUNET_RECLAIM_TicketIterator *ticket_it;
196 struct GNUNET_RECLAIM_Ticket ticket;
199 * Desired timeout for the lookup (default is no timeout).
201 struct GNUNET_TIME_Relative timeout;
204 * ID of a task associated with the resolution process.
206 struct GNUNET_SCHEDULER_Task *timeout_task;
209 * The plugin result processor
211 GNUNET_REST_ResultProcessor proc;
214 * The closure of the result processor
224 * Error response message
240 * Cleanup lookup handle
241 * @param handle Handle to clean up
244 cleanup_handle (struct RequestHandle *handle)
246 struct GNUNET_RECLAIM_ATTRIBUTE_ClaimListEntry *claim_entry;
247 struct GNUNET_RECLAIM_ATTRIBUTE_ClaimListEntry *claim_tmp;
248 struct EgoEntry *ego_entry;
249 struct EgoEntry *ego_tmp;
251 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up\n");
252 if (NULL != handle->resp_object)
253 json_decref (handle->resp_object);
254 if (NULL != handle->timeout_task)
255 GNUNET_SCHEDULER_cancel (handle->timeout_task);
256 if (NULL != handle->identity_handle)
257 GNUNET_IDENTITY_disconnect (handle->identity_handle);
258 if (NULL != handle->attr_it)
259 GNUNET_RECLAIM_get_attributes_stop (handle->attr_it);
260 if (NULL != handle->ticket_it)
261 GNUNET_RECLAIM_ticket_iteration_stop (handle->ticket_it);
262 if (NULL != handle->idp)
263 GNUNET_RECLAIM_disconnect (handle->idp);
264 if (NULL != handle->url)
265 GNUNET_free (handle->url);
266 if (NULL != handle->emsg)
267 GNUNET_free (handle->emsg);
268 if (NULL != handle->attr_list)
270 for (claim_entry = handle->attr_list->list_head; NULL != claim_entry;)
272 claim_tmp = claim_entry;
273 claim_entry = claim_entry->next;
274 GNUNET_free (claim_tmp->claim);
275 GNUNET_free (claim_tmp);
277 GNUNET_free (handle->attr_list);
279 for (ego_entry = handle->ego_head; NULL != ego_entry;)
282 ego_entry = ego_entry->next;
283 GNUNET_free (ego_tmp->identifier);
284 GNUNET_free (ego_tmp->keystring);
285 GNUNET_free (ego_tmp);
287 GNUNET_free (handle);
291 cleanup_handle_delayed (void *cls)
293 cleanup_handle (cls);
298 * Task run on error, sends error message. Cleans up everything.
300 * @param cls the `struct RequestHandle`
305 struct RequestHandle *handle = cls;
306 struct MHD_Response *resp;
309 GNUNET_asprintf (&json_error, "{ \"error\" : \"%s\" }", handle->emsg);
310 if (0 == handle->response_code)
312 handle->response_code = MHD_HTTP_BAD_REQUEST;
314 resp = GNUNET_REST_create_response (json_error);
315 MHD_add_response_header (resp, "Content-Type", "application/json");
316 handle->proc (handle->proc_cls, resp, handle->response_code);
317 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
318 GNUNET_free (json_error);
323 * Task run on timeout, sends error message. Cleans up everything.
325 * @param cls the `struct RequestHandle`
328 do_timeout (void *cls)
330 struct RequestHandle *handle = cls;
332 handle->timeout_task = NULL;
338 collect_error_cb (void *cls)
340 struct RequestHandle *handle = cls;
346 finished_cont (void *cls, int32_t success, const char *emsg)
348 struct RequestHandle *handle = cls;
349 struct MHD_Response *resp;
351 resp = GNUNET_REST_create_response (emsg);
352 if (GNUNET_OK != success)
354 GNUNET_SCHEDULER_add_now (&do_error, handle);
357 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
358 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
363 * Return attributes for identity
365 * @param cls the request handle
368 return_response (void *cls)
371 struct RequestHandle *handle = cls;
372 struct MHD_Response *resp;
374 result_str = json_dumps (handle->resp_object, 0);
375 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Result %s\n", result_str);
376 resp = GNUNET_REST_create_response (result_str);
377 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
378 GNUNET_free (result_str);
379 cleanup_handle (handle);
383 collect_finished_cb (void *cls)
385 struct RequestHandle *handle = cls;
388 handle->attr_it = NULL;
389 handle->ticket_it = NULL;
390 GNUNET_SCHEDULER_add_now (&return_response, handle);
395 * Collect all attributes for an ego
399 ticket_collect (void *cls, const struct GNUNET_RECLAIM_Ticket *ticket)
401 json_t *json_resource;
402 struct RequestHandle *handle = cls;
406 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding ticket\n");
407 tmp = GNUNET_STRINGS_data_to_string_alloc (&ticket->rnd, sizeof(uint64_t));
408 json_resource = json_object ();
410 json_array_append (handle->resp_object, json_resource);
413 GNUNET_STRINGS_data_to_string_alloc (&ticket->identity,
415 GNUNET_CRYPTO_EcdsaPublicKey));
416 value = json_string (tmp);
417 json_object_set_new (json_resource, "issuer", value);
420 GNUNET_STRINGS_data_to_string_alloc (&ticket->audience,
422 GNUNET_CRYPTO_EcdsaPublicKey));
423 value = json_string (tmp);
424 json_object_set_new (json_resource, "audience", value);
426 tmp = GNUNET_STRINGS_data_to_string_alloc (&ticket->rnd, sizeof(uint64_t));
427 value = json_string (tmp);
428 json_object_set_new (json_resource, "rnd", value);
430 GNUNET_RECLAIM_ticket_iteration_next (handle->ticket_it);
435 * List tickets for identity request
437 * @param con_handle the connection handle
439 * @param cls the RequestHandle
442 list_tickets_cont (struct GNUNET_REST_RequestHandle *con_handle,
446 const struct GNUNET_CRYPTO_EcdsaPrivateKey *priv_key;
447 struct RequestHandle *handle = cls;
448 struct EgoEntry *ego_entry;
451 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
452 "Getting tickets for %s.\n",
454 if (strlen (GNUNET_REST_API_NS_IDENTITY_TICKETS) >= strlen (handle->url))
456 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No identity given.\n");
457 GNUNET_SCHEDULER_add_now (&do_error, handle);
460 identity = handle->url + strlen (GNUNET_REST_API_NS_IDENTITY_TICKETS) + 1;
462 for (ego_entry = handle->ego_head; NULL != ego_entry;
463 ego_entry = ego_entry->next)
464 if (0 == strcmp (identity, ego_entry->identifier))
466 handle->resp_object = json_array ();
468 if (NULL == ego_entry)
471 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ego %s not found.\n", identity);
472 GNUNET_SCHEDULER_add_now (&return_response, handle);
475 priv_key = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
476 handle->idp = GNUNET_RECLAIM_connect (cfg);
478 GNUNET_RECLAIM_ticket_iteration_start (handle->idp,
484 &collect_finished_cb,
490 add_attribute_cont (struct GNUNET_REST_RequestHandle *con_handle,
494 const struct GNUNET_CRYPTO_EcdsaPrivateKey *identity_priv;
495 const char *identity;
496 struct RequestHandle *handle = cls;
497 struct EgoEntry *ego_entry;
498 struct GNUNET_RECLAIM_ATTRIBUTE_Claim *attribute;
499 struct GNUNET_TIME_Relative exp;
500 char term_data[handle->rest_handle->data_size + 1];
503 struct GNUNET_JSON_Specification attrspec[] =
504 { GNUNET_RECLAIM_JSON_spec_claim (&attribute), GNUNET_JSON_spec_end () };
506 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
507 "Adding an attribute for %s.\n",
509 if (strlen (GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES) >= strlen (handle->url))
511 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No identity given.\n");
512 GNUNET_SCHEDULER_add_now (&do_error, handle);
515 identity = handle->url + strlen (GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES) + 1;
517 for (ego_entry = handle->ego_head; NULL != ego_entry;
518 ego_entry = ego_entry->next)
519 if (0 == strcmp (identity, ego_entry->identifier))
522 if (NULL == ego_entry)
524 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Identity unknown (%s)\n", identity);
527 identity_priv = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
529 if (0 >= handle->rest_handle->data_size)
531 GNUNET_SCHEDULER_add_now (&do_error, handle);
535 term_data[handle->rest_handle->data_size] = '\0';
536 GNUNET_memcpy (term_data,
537 handle->rest_handle->data,
538 handle->rest_handle->data_size);
539 data_json = json_loads (term_data, JSON_DECODE_ANY, &err);
540 GNUNET_assert (GNUNET_OK ==
541 GNUNET_JSON_parse (data_json, attrspec, NULL, NULL));
542 json_decref (data_json);
543 if (NULL == attribute)
545 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
546 "Unable to parse attribute from %s\n",
548 GNUNET_SCHEDULER_add_now (&do_error, handle);
552 * New ID for attribute
554 if (0 == attribute->id)
556 GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_STRONG, UINT64_MAX);
557 handle->idp = GNUNET_RECLAIM_connect (cfg);
558 exp = GNUNET_TIME_UNIT_HOURS;
559 handle->idp_op = GNUNET_RECLAIM_attribute_store (handle->idp,
565 GNUNET_JSON_parse_free (attrspec);
570 * Collect all attributes for an ego
574 attr_collect (void *cls,
575 const struct GNUNET_CRYPTO_EcdsaPublicKey *identity,
576 const struct GNUNET_RECLAIM_ATTRIBUTE_Claim *attr)
578 struct RequestHandle *handle = cls;
584 if ((NULL == attr->name) || (NULL == attr->data))
586 GNUNET_RECLAIM_get_attributes_next (handle->attr_it);
590 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding attribute: %s\n", attr->name);
592 tmp_value = GNUNET_RECLAIM_ATTRIBUTE_value_to_string (attr->type,
596 attr_obj = json_object ();
597 json_object_set_new (attr_obj, "value", json_string (tmp_value));
598 json_object_set_new (attr_obj, "name", json_string (attr->name));
599 type = GNUNET_RECLAIM_ATTRIBUTE_number_to_typename (attr->type);
600 json_object_set_new (attr_obj, "type", json_string (type));
601 id_str = GNUNET_STRINGS_data_to_string_alloc (&attr->id, sizeof(uint64_t));
602 json_object_set_new (attr_obj, "id", json_string (id_str));
603 json_array_append (handle->resp_object, attr_obj);
604 json_decref (attr_obj);
605 GNUNET_free (tmp_value);
606 GNUNET_RECLAIM_get_attributes_next (handle->attr_it);
611 * List attributes for identity request
613 * @param con_handle the connection handle
615 * @param cls the RequestHandle
618 list_attribute_cont (struct GNUNET_REST_RequestHandle *con_handle,
622 const struct GNUNET_CRYPTO_EcdsaPrivateKey *priv_key;
623 struct RequestHandle *handle = cls;
624 struct EgoEntry *ego_entry;
627 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
628 "Getting attributes for %s.\n",
630 if (strlen (GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES) >= strlen (handle->url))
632 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No identity given.\n");
633 GNUNET_SCHEDULER_add_now (&do_error, handle);
636 identity = handle->url + strlen (GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES) + 1;
638 for (ego_entry = handle->ego_head; NULL != ego_entry;
639 ego_entry = ego_entry->next)
640 if (0 == strcmp (identity, ego_entry->identifier))
642 handle->resp_object = json_array ();
645 if (NULL == ego_entry)
648 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ego %s not found.\n", identity);
649 GNUNET_SCHEDULER_add_now (&return_response, handle);
652 priv_key = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
653 handle->idp = GNUNET_RECLAIM_connect (cfg);
654 handle->attr_it = GNUNET_RECLAIM_get_attributes_start (handle->idp,
660 &collect_finished_cb,
666 delete_finished_cb (void *cls, int32_t success, const char *emsg)
668 struct RequestHandle *handle = cls;
669 struct MHD_Response *resp;
671 resp = GNUNET_REST_create_response (emsg);
672 if (GNUNET_OK != success)
674 GNUNET_SCHEDULER_add_now (&do_error, handle);
677 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
678 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
683 * List attributes for identity request
685 * @param con_handle the connection handle
687 * @param cls the RequestHandle
690 delete_attribute_cont (struct GNUNET_REST_RequestHandle *con_handle,
694 const struct GNUNET_CRYPTO_EcdsaPrivateKey *priv_key;
695 struct RequestHandle *handle = cls;
696 struct GNUNET_RECLAIM_ATTRIBUTE_Claim attr;
697 struct EgoEntry *ego_entry;
698 char *identity_id_str;
702 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Deleting attributes.\n");
703 if (strlen (GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES) >= strlen (handle->url))
705 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "No identity given.\n");
706 GNUNET_SCHEDULER_add_now (&do_error, handle);
710 strdup (handle->url + strlen (GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES) + 1);
711 identity = strtok (identity_id_str, "/");
712 id = strtok (NULL, "/");
713 if ((NULL == identity) || (NULL == id))
715 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Malformed request.\n");
716 GNUNET_free (identity_id_str);
717 GNUNET_SCHEDULER_add_now (&do_error, handle);
721 for (ego_entry = handle->ego_head; NULL != ego_entry;
722 ego_entry = ego_entry->next)
723 if (0 == strcmp (identity, ego_entry->identifier))
725 handle->resp_object = json_array ();
726 if (NULL == ego_entry)
729 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Ego %s not found.\n", identity);
730 GNUNET_free (identity_id_str);
731 GNUNET_SCHEDULER_add_now (&return_response, handle);
734 priv_key = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
735 handle->idp = GNUNET_RECLAIM_connect (cfg);
736 memset (&attr, 0, sizeof(struct GNUNET_RECLAIM_ATTRIBUTE_Claim));
737 GNUNET_STRINGS_string_to_data (id, strlen (id), &attr.id, sizeof(uint64_t));
739 handle->idp_op = GNUNET_RECLAIM_attribute_delete (handle->idp,
744 GNUNET_free (identity_id_str);
749 revoke_ticket_cont (struct GNUNET_REST_RequestHandle *con_handle,
753 const struct GNUNET_CRYPTO_EcdsaPrivateKey *identity_priv;
754 struct RequestHandle *handle = cls;
755 struct EgoEntry *ego_entry;
756 struct GNUNET_RECLAIM_Ticket *ticket = NULL;
757 struct GNUNET_CRYPTO_EcdsaPublicKey tmp_pk;
758 char term_data[handle->rest_handle->data_size + 1];
761 struct GNUNET_JSON_Specification tktspec[] =
762 { GNUNET_RECLAIM_JSON_spec_ticket (&ticket), GNUNET_JSON_spec_end () };
764 if (0 >= handle->rest_handle->data_size)
766 GNUNET_SCHEDULER_add_now (&do_error, handle);
770 term_data[handle->rest_handle->data_size] = '\0';
771 GNUNET_memcpy (term_data,
772 handle->rest_handle->data,
773 handle->rest_handle->data_size);
774 data_json = json_loads (term_data, JSON_DECODE_ANY, &err);
775 if ((NULL == data_json) ||
776 (GNUNET_OK != GNUNET_JSON_parse (data_json, tktspec, NULL, NULL)))
778 handle->emsg = GNUNET_strdup ("Not a ticket!\n");
779 GNUNET_SCHEDULER_add_now (&do_error, handle);
780 GNUNET_JSON_parse_free (tktspec);
781 if (NULL != data_json)
782 json_decref (data_json);
785 json_decref (data_json);
788 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
789 "Unable to parse ticket from %s\n",
791 GNUNET_SCHEDULER_add_now (&do_error, handle);
795 for (ego_entry = handle->ego_head; NULL != ego_entry;
796 ego_entry = ego_entry->next)
798 GNUNET_IDENTITY_ego_get_public_key (ego_entry->ego, &tmp_pk);
799 if (0 == memcmp (&ticket->identity,
801 sizeof(struct GNUNET_CRYPTO_EcdsaPublicKey)))
804 if (NULL == ego_entry)
806 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Identity unknown\n");
807 GNUNET_JSON_parse_free (tktspec);
810 identity_priv = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
812 handle->idp = GNUNET_RECLAIM_connect (cfg);
813 handle->idp_op = GNUNET_RECLAIM_ticket_revoke (handle->idp,
818 GNUNET_JSON_parse_free (tktspec);
822 consume_cont (void *cls,
823 const struct GNUNET_CRYPTO_EcdsaPublicKey *identity,
824 const struct GNUNET_RECLAIM_ATTRIBUTE_Claim *attr)
826 struct RequestHandle *handle = cls;
830 if (NULL == identity)
832 GNUNET_SCHEDULER_add_now (&return_response, handle);
836 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Adding attribute: %s\n", attr->name);
837 val_str = GNUNET_RECLAIM_ATTRIBUTE_value_to_string (attr->type,
842 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
843 "Failed to parse value for: %s\n",
847 value = json_string (val_str);
848 json_object_set_new (handle->resp_object, attr->name, value);
850 GNUNET_free (val_str);
854 consume_ticket_cont (struct GNUNET_REST_RequestHandle *con_handle,
858 const struct GNUNET_CRYPTO_EcdsaPrivateKey *identity_priv;
859 struct RequestHandle *handle = cls;
860 struct EgoEntry *ego_entry;
861 struct GNUNET_RECLAIM_Ticket *ticket;
862 struct GNUNET_CRYPTO_EcdsaPublicKey tmp_pk;
863 char term_data[handle->rest_handle->data_size + 1];
866 struct GNUNET_JSON_Specification tktspec[] =
867 { GNUNET_RECLAIM_JSON_spec_ticket (&ticket), GNUNET_JSON_spec_end () };
869 if (0 >= handle->rest_handle->data_size)
871 GNUNET_SCHEDULER_add_now (&do_error, handle);
875 term_data[handle->rest_handle->data_size] = '\0';
876 GNUNET_memcpy (term_data,
877 handle->rest_handle->data,
878 handle->rest_handle->data_size);
879 data_json = json_loads (term_data, JSON_DECODE_ANY, &err);
880 if (NULL == data_json)
882 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
883 "Unable to parse JSON Object from %s\n",
885 GNUNET_SCHEDULER_add_now (&do_error, handle);
888 if (GNUNET_OK != GNUNET_JSON_parse (data_json, tktspec, NULL, NULL))
890 handle->emsg = GNUNET_strdup ("Not a ticket!\n");
891 GNUNET_SCHEDULER_add_now (&do_error, handle);
892 GNUNET_JSON_parse_free (tktspec);
893 json_decref (data_json);
896 for (ego_entry = handle->ego_head; NULL != ego_entry;
897 ego_entry = ego_entry->next)
899 GNUNET_IDENTITY_ego_get_public_key (ego_entry->ego, &tmp_pk);
900 if (0 == memcmp (&ticket->audience,
902 sizeof(struct GNUNET_CRYPTO_EcdsaPublicKey)))
905 if (NULL == ego_entry)
907 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Identity unknown\n");
908 GNUNET_JSON_parse_free (tktspec);
911 identity_priv = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
912 handle->resp_object = json_object ();
913 handle->idp = GNUNET_RECLAIM_connect (cfg);
914 handle->idp_op = GNUNET_RECLAIM_ticket_consume (handle->idp,
919 GNUNET_JSON_parse_free (tktspec);
924 * Respond to OPTIONS request
926 * @param con_handle the connection handle
928 * @param cls the RequestHandle
931 options_cont (struct GNUNET_REST_RequestHandle *con_handle,
935 struct MHD_Response *resp;
936 struct RequestHandle *handle = cls;
938 // For now, independent of path return all options
939 resp = GNUNET_REST_create_response (NULL);
940 MHD_add_response_header (resp, "Access-Control-Allow-Methods", allow_methods);
941 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
942 cleanup_handle (handle);
947 * Handle rest request
949 * @param handle the request handle
952 init_cont (struct RequestHandle *handle)
954 struct GNUNET_REST_RequestHandlerError err;
955 static const struct GNUNET_REST_RequestHandler handlers[] =
956 { { MHD_HTTP_METHOD_GET,
957 GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES,
958 &list_attribute_cont },
959 { MHD_HTTP_METHOD_POST,
960 GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES,
961 &add_attribute_cont },
962 { MHD_HTTP_METHOD_DELETE,
963 GNUNET_REST_API_NS_RECLAIM_ATTRIBUTES,
964 &delete_attribute_cont },
965 { MHD_HTTP_METHOD_GET,
966 GNUNET_REST_API_NS_IDENTITY_TICKETS,
967 &list_tickets_cont },
968 { MHD_HTTP_METHOD_POST,
969 GNUNET_REST_API_NS_IDENTITY_REVOKE,
970 &revoke_ticket_cont },
971 { MHD_HTTP_METHOD_POST,
972 GNUNET_REST_API_NS_IDENTITY_CONSUME,
973 &consume_ticket_cont },
974 { MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_RECLAIM, &options_cont },
975 GNUNET_REST_HANDLER_END };
978 GNUNET_REST_handle_request (handle->rest_handle, handlers, &err, handle))
980 handle->response_code = err.error_code;
981 GNUNET_SCHEDULER_add_now (&do_error, handle);
986 * If listing is enabled, prints information about the egos.
988 * This function is initially called for all egos and then again
989 * whenever a ego's identifier changes or if it is deleted. At the
990 * end of the initial pass over all egos, the function is once called
991 * with 'NULL' for 'ego'. That does NOT mean that the callback won't
992 * be invoked in the future or that there was an error.
994 * When used with 'GNUNET_IDENTITY_create' or 'GNUNET_IDENTITY_get',
995 * this function is only called ONCE, and 'NULL' being passed in
996 * 'ego' does indicate an error (i.e. name is taken or no default
997 * value is known). If 'ego' is non-NULL and if '*ctx'
998 * is set in those callbacks, the value WILL be passed to a subsequent
999 * call to the identity callback of 'GNUNET_IDENTITY_connect' (if
1000 * that one was not NULL).
1002 * When an identity is renamed, this function is called with the
1003 * (known) ego but the NEW identifier.
1005 * When an identity is deleted, this function is called with the
1006 * (known) ego and "NULL" for the 'identifier'. In this case,
1007 * the 'ego' is henceforth invalid (and the 'ctx' should also be
1010 * @param cls closure
1011 * @param ego ego handle
1012 * @param ctx context for application to store data for this ego
1013 * (during the lifetime of this process, initially NULL)
1014 * @param identifier identifier assigned by the user for this ego,
1015 * NULL if the user just deleted the ego and it
1016 * must thus no longer be used
1019 list_ego (void *cls,
1020 struct GNUNET_IDENTITY_Ego *ego,
1022 const char *identifier)
1024 struct RequestHandle *handle = cls;
1025 struct EgoEntry *ego_entry;
1026 struct GNUNET_CRYPTO_EcdsaPublicKey pk;
1028 if ((NULL == ego) && (ID_REST_STATE_INIT == handle->state))
1030 handle->state = ID_REST_STATE_POST_INIT;
1034 if (ID_REST_STATE_INIT == handle->state)
1036 ego_entry = GNUNET_new (struct EgoEntry);
1037 GNUNET_IDENTITY_ego_get_public_key (ego, &pk);
1038 ego_entry->keystring = GNUNET_CRYPTO_ecdsa_public_key_to_string (&pk);
1039 ego_entry->ego = ego;
1040 ego_entry->identifier = GNUNET_strdup (identifier);
1041 GNUNET_CONTAINER_DLL_insert_tail (handle->ego_head,
1048 rest_identity_process_request (struct GNUNET_REST_RequestHandle *rest_handle,
1049 GNUNET_REST_ResultProcessor proc,
1052 struct RequestHandle *handle = GNUNET_new (struct RequestHandle);
1054 handle->response_code = 0;
1055 handle->timeout = GNUNET_TIME_UNIT_FOREVER_REL;
1056 handle->proc_cls = proc_cls;
1057 handle->proc = proc;
1058 handle->state = ID_REST_STATE_INIT;
1059 handle->rest_handle = rest_handle;
1061 handle->url = GNUNET_strdup (rest_handle->url);
1062 if (handle->url[strlen (handle->url) - 1] == '/')
1063 handle->url[strlen (handle->url) - 1] = '\0';
1064 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting...\n");
1065 handle->identity_handle = GNUNET_IDENTITY_connect (cfg, &list_ego, handle);
1066 handle->timeout_task =
1067 GNUNET_SCHEDULER_add_delayed (handle->timeout, &do_timeout, handle);
1068 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected\n");
1072 * Entry point for the plugin.
1074 * @param cls Config info
1075 * @return NULL on error, otherwise the plugin context
1078 libgnunet_plugin_rest_reclaim_init (void *cls)
1080 static struct Plugin plugin;
1081 struct GNUNET_REST_Plugin *api;
1084 if (NULL != plugin.cfg)
1085 return NULL; /* can only initialize once! */
1086 memset (&plugin, 0, sizeof(struct Plugin));
1088 api = GNUNET_new (struct GNUNET_REST_Plugin);
1090 api->name = GNUNET_REST_API_NS_RECLAIM;
1091 api->process_request = &rest_identity_process_request;
1092 GNUNET_asprintf (&allow_methods,
1093 "%s, %s, %s, %s, %s",
1094 MHD_HTTP_METHOD_GET,
1095 MHD_HTTP_METHOD_POST,
1096 MHD_HTTP_METHOD_PUT,
1097 MHD_HTTP_METHOD_DELETE,
1098 MHD_HTTP_METHOD_OPTIONS);
1100 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1101 _ ("Identity Provider REST API initialized\n"));
1107 * Exit point from the plugin.
1109 * @param cls the plugin context (as returned by "init")
1110 * @return always NULL
1113 libgnunet_plugin_rest_reclaim_done (void *cls)
1115 struct GNUNET_REST_Plugin *api = cls;
1116 struct Plugin *plugin = api->cls;
1120 GNUNET_free_non_null (allow_methods);
1122 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1123 "Identity Provider REST plugin is finished\n");
1127 /* end of plugin_rest_reclaim.c */