GNUnet  0.17.6
plugin_rest_namestore.c
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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 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.
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  Affero General Public License for more details.
14 
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/>.
17 
18  SPDX-License-Identifier: AGPL3.0-or-later
19  */
27 #include "platform.h"
28 #include "gnunet_rest_plugin.h"
29 #include "gnunet_gns_service.h"
32 #include "gnunet_rest_lib.h"
34 #include "microhttpd.h"
35 #include <jansson.h>
36 
40 #define GNUNET_REST_API_NS_NAMESTORE "/namestore"
41 
45 #define GNUNET_REST_NAMESTORE_ERROR_UNKNOWN "Unknown Error"
46 
50 #define GNUNET_REST_IDENTITY_NOT_FOUND "No identity found"
51 
52 
56 #define GNUNET_REST_NAMESTORE_FAILED "Namestore action failed"
57 
61 #define GNUNET_REST_NAMESTORE_INVALID_DATA "Data invalid"
62 
66 #define GNUNET_REST_NAMESTORE_NO_DATA "No data"
67 
71 #define ID_REST_STATE_INIT 0
72 
76 #define ID_REST_STATE_POST_INIT 1
81 
85 static char *allow_methods;
86 
90 static struct EgoEntry *ego_head;
91 
95 static struct EgoEntry *ego_tail;
96 
100 static int state;
101 
106 
111 
115 struct Plugin
116 {
117  const struct GNUNET_CONFIGURATION_Handle *cfg;
118 };
119 
123 struct EgoEntry
124 {
128  struct EgoEntry *next;
129 
133  struct EgoEntry *prev;
134 
138  char *identifier;
139 
143  char *keystring;
144 
148  struct GNUNET_IDENTITY_Ego *ego;
149 };
150 
151 
153 {
156 };
157 
161 struct RequestHandle
162 {
166  struct RequestHandle *next;
167 
171  struct RequestHandle *prev;
172 
176  char *record_name;
177 
181  uint32_t record_type;
182 
187 
192 
196  unsigned int rd_count;
197 
202 
206  json_t *resp_object;
207 
208 
213 
218 
223 
228 
233 
238 
243 
248 
252  void *proc_cls;
253 
257  char *url;
258 
262  char *emsg;
263 
267  int response_code;
268 };
269 
274 
279 
280 
285 static void
286 cleanup_handle (void *cls)
287 {
288  struct RequestHandle *handle = cls;
289 
290  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up\n");
291  if (NULL != handle->timeout_task)
292  {
293  GNUNET_SCHEDULER_cancel (handle->timeout_task);
294  handle->timeout_task = NULL;
295  }
296  if (NULL != handle->record_name)
297  GNUNET_free (handle->record_name);
298  if (NULL != handle->url)
299  GNUNET_free (handle->url);
300  if (NULL != handle->emsg)
301  GNUNET_free (handle->emsg);
302  if (NULL != handle->rd)
303  {
304  for (int i = 0; i < handle->rd_count; i++)
305  {
306  if (NULL != handle->rd[i].data)
307  GNUNET_free_nz ((void *) handle->rd[i].data);
308  }
309  GNUNET_free (handle->rd);
310  }
311  if (NULL != handle->timeout_task)
312  GNUNET_SCHEDULER_cancel (handle->timeout_task);
313  if (NULL != handle->list_it)
315  if (NULL != handle->ns_qe)
317 
318  if (NULL != handle->resp_object)
319  {
320  json_decref (handle->resp_object);
321  }
324  handle);
326 }
327 
328 
334 static void
335 do_error (void *cls)
336 {
337  struct RequestHandle *handle = cls;
338  struct MHD_Response *resp;
339  json_t *json_error = json_object ();
340  char *response;
341 
342  if (NULL == handle->emsg)
344 
345  json_object_set_new (json_error, "error", json_string (handle->emsg));
346 
347  if (0 == handle->response_code)
348  handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
349  response = json_dumps (json_error, 0);
351  MHD_add_response_header (resp, "Content-Type", "application/json");
352  handle->proc (handle->proc_cls, resp, handle->response_code);
353  json_decref (json_error);
356 }
357 
358 
368 struct EgoEntry *
370 {
371  struct EgoEntry *ego_entry;
372  char *copy = GNUNET_strdup (name);
373  char *tmp;
374 
375  if (NULL == name)
376  return NULL;
377  tmp = strtok (copy, "/");
378  if (NULL == tmp)
379  return NULL;
380  for (ego_entry = ego_head; NULL != ego_entry;
381  ego_entry = ego_entry->next)
382  {
383  if (0 != strcasecmp (tmp, ego_entry->identifier))
384  continue;
385  GNUNET_free (copy);
386  return ego_entry;
387  }
388  GNUNET_free (copy);
389  return NULL;
390 }
391 
392 
398 static void
400 {
401  struct RequestHandle *handle = cls;
402 
405  return;
406 }
407 
408 
416 static void
417 create_finished (void *cls, int32_t success, const char *emsg)
418 {
419  struct RequestHandle *handle = cls;
420  struct MHD_Response *resp;
421 
422  handle->ns_qe = NULL;
423  if (GNUNET_YES != success)
424  {
425  if (NULL != emsg)
426  {
427  handle->emsg = GNUNET_strdup (emsg);
429  return;
430  }
431  handle->emsg = GNUNET_strdup ("Error storing records");
433  return;
434  }
435  resp = GNUNET_REST_create_response (NULL);
436  handle->proc (handle->proc_cls, resp, MHD_HTTP_NO_CONTENT);
438 }
439 
440 
448 static void
449 del_finished (void *cls, int32_t success, const char *emsg)
450 {
451  struct RequestHandle *handle = cls;
452 
453  handle->ns_qe = NULL;
454  if (GNUNET_NO == success)
455  {
456  handle->response_code = MHD_HTTP_NOT_FOUND;
457  handle->emsg = GNUNET_strdup ("No record found");
459  return;
460  }
461  if (GNUNET_SYSERR == success)
462  {
463  if (NULL != emsg)
464  {
465  handle->emsg = GNUNET_strdup (emsg);
467  return;
468  }
469  handle->emsg = GNUNET_strdup ("Deleting record failed");
471  return;
472  }
473  handle->proc (handle->proc_cls,
475  MHD_HTTP_NO_CONTENT);
477 }
478 
479 
486 static void
488 {
489  struct RequestHandle *handle = cls;
490  char *result_str;
491  struct MHD_Response *resp;
492 
493  handle->list_it = NULL;
494 
495  if (NULL == handle->resp_object)
496  handle->resp_object = json_array ();
497 
498  result_str = json_dumps (handle->resp_object, 0);
499  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Result %s\n", result_str);
500  resp = GNUNET_REST_create_response (result_str);
501  MHD_add_response_header (resp, "Content-Type", "application/json");
502  handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
503  GNUNET_free (result_str);
505 }
506 
507 
513 static void
515  const struct GNUNET_IDENTITY_PrivateKey *zone_key,
516  const char *rname,
517  unsigned int rd_len,
518  const struct GNUNET_GNSRECORD_Data *rd)
519 {
520  struct RequestHandle *handle = cls;
521  struct GNUNET_GNSRECORD_Data rd_filtered[rd_len];
522  json_t *record_obj;
523  int i = 0;
524  int j = 0;
525 
526  if (NULL == handle->resp_object)
527  handle->resp_object = json_array ();
528  for (i = 0; i < rd_len; i++)
529  {
530  if ((GNUNET_GNSRECORD_TYPE_ANY != handle->record_type) &&
531  (rd[i].record_type != handle->record_type))
532  continue; /* Apply filter */
533  rd_filtered[j] = rd[i];
534  rd_filtered[j].data = rd[i].data;
535  j++;
536  }
538  if (j > 0)
539  {
540  record_obj = GNUNET_GNSRECORD_JSON_from_gnsrecord (rname,
541  rd_filtered,
542  j);
543  json_array_append_new (handle->resp_object, record_obj);
544  }
546 }
547 
548 
554 static void
556 {
557  struct RequestHandle *handle = cls;
558 
561 }
562 
563 
564 static void
565 ns_get_lookup_cb (void *cls,
566  const struct GNUNET_IDENTITY_PrivateKey *zone,
567  const char *label,
568  unsigned int rd_len,
569  const struct GNUNET_GNSRECORD_Data *rd)
570 {
571  struct RequestHandle *handle = cls;
572  struct GNUNET_GNSRECORD_Data rd_filtered[rd_len];
573  json_t *record_obj;
574  int i = 0;
575  int j = 0;
576 
577  handle->ns_qe = NULL;
578  if (NULL == handle->resp_object)
579  handle->resp_object = json_array ();
580  for (i = 0; i < rd_len; i++)
581  {
582  if ((GNUNET_GNSRECORD_TYPE_ANY != handle->record_type) &&
583  (rd[i].record_type != handle->record_type))
584  continue; /* Apply filter */
585  rd_filtered[j] = rd[i];
586  rd_filtered[j].data = rd[i].data;
587  j++;
588  }
590  if (j > 0)
591  {
592  record_obj = GNUNET_GNSRECORD_JSON_from_gnsrecord (label,
593  rd_filtered,
594  j);
595  json_array_append_new (handle->resp_object, record_obj);
596  }
598 }
599 
600 
608 void
610  const char *url,
611  void *cls)
612 {
613  struct RequestHandle *handle = cls;
614  struct EgoEntry *ego_entry;
615  struct GNUNET_HashCode key;
616  char *egoname;
617  char *labelname;
618  char *typename;
619 
620  egoname = NULL;
621  ego_entry = NULL;
622 
623  // set zone to name if given
624  if (strlen (GNUNET_REST_API_NS_NAMESTORE) + 1 >= strlen (handle->url))
625  {
626  handle->response_code = MHD_HTTP_NOT_FOUND;
629  return;
630  }
631  egoname = &handle->url[strlen (GNUNET_REST_API_NS_NAMESTORE) + 1];
632  ego_entry = get_egoentry_namestore (handle, egoname);
633  if (NULL == ego_entry)
634  {
635  handle->response_code = MHD_HTTP_NOT_FOUND;
638  return;
639  }
640  handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
641 
642  GNUNET_CRYPTO_hash ("record_type", strlen ("record_type"), &key);
643  handle->record_type = GNUNET_GNSRECORD_TYPE_ANY;
644  if (GNUNET_YES ==
646  {
647  typename = GNUNET_CONTAINER_multihashmap_get (con_handle->url_param_map,
648  &key);
649  if (NULL != typename)
650  handle->record_type = GNUNET_GNSRECORD_typename_to_number (typename);
651  }
652  labelname = &egoname[strlen (ego_entry->identifier)];
653  // set zone to name if given
654  if (1 >= strlen (labelname))
655  {
656  handle->list_it =
658  handle->zone_pkey,
660  handle,
662  handle,
664  handle);
665  if (NULL == handle->list_it)
666  {
669  return;
670  }
671  return;
672  }
673  handle->record_name = GNUNET_strdup (labelname + 1);
675  handle->zone_pkey,
676  handle->record_name,
678  handle,
680  handle);
681  if (NULL == handle->ns_qe)
682  {
685  return;
686  }
687 }
688 
689 
690 static void
691 ns_lookup_cb (void *cls,
692  const struct GNUNET_IDENTITY_PrivateKey *zone,
693  const char *label,
694  unsigned int rd_count,
695  const struct GNUNET_GNSRECORD_Data *rd)
696 {
697  struct RequestHandle *handle = cls;
698  struct GNUNET_GNSRECORD_Data rd_new[rd_count + handle->rd_count];
699  int i = 0;
700  int j = 0;
701 
702  if (UPDATE_STRATEGY_APPEND == handle->update_strategy)
703  {
704  for (i = 0; i < rd_count; i++)
705  rd_new[i] = rd[i];
706  }
707  for (j = 0; j < handle->rd_count; j++)
708  rd_new[i + j] = handle->rd[j];
710  handle->zone_pkey,
711  handle->record_name,
712  i + j,
713  rd_new,
715  handle);
716  if (NULL == handle->ns_qe)
717  {
720  return;
721  }
722 }
723 
724 
732 void
734  const char *url,
735  void *cls)
736 {
737  struct RequestHandle *handle = cls;
738  struct EgoEntry *ego_entry;
739  char *egoname;
740  json_t *data_js;
741  json_error_t err;
742 
743  char term_data[handle->rest_handle->data_size + 1];
744 
745  if (0 >= handle->rest_handle->data_size)
746  {
747  handle->response_code = MHD_HTTP_BAD_REQUEST;
750  return;
751  }
752  term_data[handle->rest_handle->data_size] = '\0';
753  GNUNET_memcpy (term_data,
754  handle->rest_handle->data,
755  handle->rest_handle->data_size);
756  data_js = json_loads (term_data, JSON_DECODE_ANY, &err);
757  struct GNUNET_JSON_Specification gnsspec[] =
759  &handle->record_name),
761  if (GNUNET_OK != GNUNET_JSON_parse (data_js, gnsspec, NULL, NULL))
762  {
765  json_decref (data_js);
766  return;
767  }
768  GNUNET_JSON_parse_free (gnsspec);
769  if (0 >= strlen (handle->record_name))
770  {
771  handle->response_code = MHD_HTTP_BAD_REQUEST;
774  json_decref (data_js);
775  return;
776  }
777  json_decref (data_js);
778 
779  egoname = NULL;
780  ego_entry = NULL;
781 
782  // set zone to name if given
783  if (strlen (GNUNET_REST_API_NS_NAMESTORE) + 1 >= strlen (handle->url))
784  {
785  handle->response_code = MHD_HTTP_NOT_FOUND;
788  return;
789  }
790  egoname = &handle->url[strlen (GNUNET_REST_API_NS_NAMESTORE) + 1];
791  ego_entry = get_egoentry_namestore (handle, egoname);
792 
793  if (NULL == ego_entry)
794  {
795  handle->response_code = MHD_HTTP_NOT_FOUND;
798  return;
799  }
800  handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
802  handle->zone_pkey,
803  handle->record_name,
805  handle,
806  &ns_lookup_cb,
807  handle);
808  if (NULL == handle->ns_qe)
809  {
812  return;
813  }
814 }
815 
816 
824 void
826  const char *url,
827  void *cls)
828 {
829  struct RequestHandle *handle = cls;
830  handle->update_strategy = UPDATE_STRATEGY_REPLACE;
831  namestore_add_or_update (con_handle, url, cls);
832 }
833 
834 
842 void
844  const char *url,
845  void *cls)
846 {
847  struct RequestHandle *handle = cls;
848  handle->update_strategy = UPDATE_STRATEGY_APPEND;
849  namestore_add_or_update (con_handle, url, cls);
850 }
851 
852 
860 void
862  const char *url,
863  void *cls)
864 {
865  struct RequestHandle *handle = cls;
866  struct EgoEntry *ego_entry;
867  char *egoname;
868  char *labelname;
869 
870  egoname = NULL;
871  ego_entry = NULL;
872 
873  // set zone to name if given
874  if (strlen (GNUNET_REST_API_NS_NAMESTORE) + 1 >= strlen (handle->url))
875  {
876  handle->response_code = MHD_HTTP_NOT_FOUND;
879  return;
880  }
881  egoname = &handle->url[strlen (GNUNET_REST_API_NS_NAMESTORE) + 1];
882  ego_entry = get_egoentry_namestore (handle, egoname);
883  if (NULL == ego_entry)
884  {
885  handle->response_code = MHD_HTTP_NOT_FOUND;
888  return;
889  }
890  handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
891  labelname = &egoname[strlen (ego_entry->identifier)];
892  // set zone to name if given
893  if (1 >= strlen (labelname))
894  {
895  /* label is only "/" */
896  handle->response_code = MHD_HTTP_BAD_REQUEST;
897  handle->emsg = GNUNET_strdup ("Label missing");
899  }
900 
901  handle->record_name = GNUNET_strdup (labelname + 1);
903  handle->zone_pkey,
904  handle->record_name,
905  0,
906  NULL,
907  &del_finished,
908  handle);
909  if (NULL == handle->ns_qe)
910  {
913  return;
914  }
915 }
916 
917 
925 static void
927  const char *url,
928  void *cls)
929 {
930  struct MHD_Response *resp;
931  struct RequestHandle *handle = cls;
932 
933  // independent of path return all options
934  resp = GNUNET_REST_create_response (NULL);
935  MHD_add_response_header (resp, "Access-Control-Allow-Methods", allow_methods);
936  handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
938  return;
939 }
940 
941 
942 static void
943 list_ego (void *cls,
944  struct GNUNET_IDENTITY_Ego *ego,
945  void **ctx,
946  const char *identifier)
947 {
948  struct EgoEntry *ego_entry;
950 
951  if ((NULL == ego) && (ID_REST_STATE_INIT == state))
952  {
954  return;
955  }
956  if (NULL == ego)
957  {
959  "Called with NULL ego\n");
960  return;
961  }
962  if (ID_REST_STATE_INIT == state)
963  {
964  ego_entry = GNUNET_new (struct EgoEntry);
967  ego_entry->ego = ego;
968  ego_entry->identifier = GNUNET_strdup (identifier);
970  ego_tail,
971  ego_entry);
972  }
973  /* Ego renamed or added */
974  if (identifier != NULL)
975  {
976  for (ego_entry = ego_head; NULL != ego_entry;
977  ego_entry = ego_entry->next)
978  {
979  if (ego_entry->ego == ego)
980  {
981  /* Rename */
982  GNUNET_free (ego_entry->identifier);
983  ego_entry->identifier = GNUNET_strdup (identifier);
984  break;
985  }
986  }
987  if (NULL == ego_entry)
988  {
989  /* Add */
990  ego_entry = GNUNET_new (struct EgoEntry);
993  ego_entry->ego = ego;
994  ego_entry->identifier = GNUNET_strdup (identifier);
996  ego_tail,
997  ego_entry);
998  }
999  }
1000  else
1001  {
1002  /* Delete */
1003  for (ego_entry = ego_head; NULL != ego_entry;
1004  ego_entry = ego_entry->next)
1005  {
1006  if (ego_entry->ego == ego)
1007  break;
1008  }
1009  if (NULL == ego_entry)
1010  return; /* Not found */
1011 
1013  ego_tail,
1014  ego_entry);
1015  GNUNET_free (ego_entry->identifier);
1016  GNUNET_free (ego_entry->keystring);
1017  GNUNET_free (ego_entry);
1018  return;
1019  }
1020 
1021 }
1022 
1023 
1035 static enum GNUNET_GenericReturnValue
1036 rest_process_request (struct GNUNET_REST_RequestHandle *rest_handle,
1038  void *proc_cls)
1039 {
1040  struct RequestHandle *handle = GNUNET_new (struct RequestHandle);
1042  static const struct GNUNET_REST_RequestHandler handlers[] =
1043  { { MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_NAMESTORE, &namestore_get },
1044  { MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_NAMESTORE, &namestore_add },
1045  { MHD_HTTP_METHOD_PUT, GNUNET_REST_API_NS_NAMESTORE, &namestore_update },
1046  { MHD_HTTP_METHOD_DELETE, GNUNET_REST_API_NS_NAMESTORE, &namestore_delete },
1047  { MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_NAMESTORE, &options_cont },
1049 
1050  handle->response_code = 0;
1052  handle->proc_cls = proc_cls;
1053  handle->proc = proc;
1054  handle->rest_handle = rest_handle;
1055  handle->zone_pkey = NULL;
1056  handle->timeout_task =
1058  handle->url = GNUNET_strdup (rest_handle->url);
1059  if (handle->url[strlen (handle->url) - 1] == '/')
1060  handle->url[strlen (handle->url) - 1] = '\0';
1062  requests_tail,
1063  handle);
1064  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting...\n");
1065  if (GNUNET_NO ==
1066  GNUNET_REST_handle_request (handle->rest_handle, handlers, &err, handle))
1067  {
1069  return GNUNET_NO;
1070  }
1071 
1072  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected\n");
1073  return GNUNET_YES;
1074 }
1075 
1076 
1083 void *
1085 {
1086  static struct Plugin plugin;
1087  struct GNUNET_REST_Plugin *api;
1088 
1089  cfg = cls;
1090  if (NULL != plugin.cfg)
1091  return NULL; /* can only initialize once! */
1092  memset (&plugin, 0, sizeof(struct Plugin));
1093  plugin.cfg = cfg;
1094  api = GNUNET_new (struct GNUNET_REST_Plugin);
1095  api->cls = &plugin;
1100  "%s, %s, %s, %s, %s",
1101  MHD_HTTP_METHOD_GET,
1102  MHD_HTTP_METHOD_POST,
1103  MHD_HTTP_METHOD_PUT,
1104  MHD_HTTP_METHOD_DELETE,
1105  MHD_HTTP_METHOD_OPTIONS);
1108 
1109  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _ ("Namestore REST API initialized\n"));
1110  return api;
1111 }
1112 
1113 
1120 void *
1122 {
1123  struct GNUNET_REST_Plugin *api = cls;
1124  struct Plugin *plugin = api->cls;
1125  struct RequestHandle *request;
1126  struct EgoEntry *ego_entry;
1127  struct EgoEntry *ego_tmp;
1128 
1129  plugin->cfg = NULL;
1130  while (NULL != (request = requests_head))
1131  do_error (request);
1132  if (NULL != identity_handle)
1134  if (NULL != ns_handle)
1136 
1137  for (ego_entry = ego_head; NULL != ego_entry;)
1138  {
1139  ego_tmp = ego_entry;
1140  ego_entry = ego_entry->next;
1141  GNUNET_free (ego_tmp->identifier);
1142  GNUNET_free (ego_tmp->keystring);
1143  GNUNET_free (ego_tmp);
1144  }
1145 
1147  GNUNET_free (api);
1148  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Namestore REST plugin is finished\n");
1149  return NULL;
1150 }
1151 
1152 
1153 /* end of plugin_rest_namestore.c */
static struct GNUNET_CADET_MessageHandler handlers[]
Handlers, for diverse services.
struct Plugin * plugin
The process handle to the testbed service.
static struct MHD_Response * response
Our canonical response.
struct GNUNET_HashCode key
The key used in the DHT.
static char * egoname
Ego Attribut String.
Definition: gnunet-did.c:96
static struct GNUNET_DNS_Handle * handle
Handle to transport service.
struct GNUNET_IDENTITY_PrivateKey pk
Private key from command line option, or NULL.
static char * zone
Name of the zone being managed.
static const struct GNUNET_IDENTITY_PrivateKey * zone_key
Private key of the zone.
static struct GNUNET_VPN_RedirectionRequest * request
Opaque redirection request handle.
Definition: gnunet-vpn.c:41
static struct GNUNET_DNSSTUB_Context * ctx
Context for DNS resolution.
API to the GNS service.
API that can be used to manipulate JSON GNS record data.
Identity service; implements identity management for GNUnet.
void GNUNET_JSON_parse_free(struct GNUNET_JSON_Specification *spec)
Frees all elements allocated during a GNUNET_JSON_parse() operation.
Definition: json.c:94
enum GNUNET_GenericReturnValue GNUNET_JSON_parse(const json_t *root, struct GNUNET_JSON_Specification *spec, const char **error_json_name, unsigned int *error_line)
Navigate and parse data in a JSON tree.
Definition: json.c:32
struct GNUNET_JSON_Specification GNUNET_JSON_spec_end(void)
End of a parser specification.
Definition: json_helper.c:32
API that can be used to store naming information on a GNUnet node;.
API for helper library to parse/create REST.
GNUnet service REST plugin header.
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
#define GNUNET_CONTAINER_DLL_insert(head, tail, element)
Insert an element at the head of a DLL.
uint32_t GNUNET_GNSRECORD_typename_to_number(const char *dns_typename)
Convert a type name (e.g "AAAA") to the corresponding number.
Definition: gnsrecord.c:217
struct GNUNET_JSON_Specification GNUNET_GNSRECORD_JSON_spec_gnsrecord(struct GNUNET_GNSRECORD_Data **rd, unsigned int *rd_count, char **name)
JSON Specification for GNS Records.
json_t * GNUNET_GNSRECORD_JSON_from_gnsrecord(const char *rname, const struct GNUNET_GNSRECORD_Data *rd, unsigned int rd_count)
Convert GNS record to JSON.
#define GNUNET_GNSRECORD_TYPE_ANY
Record type indicating any record/'*'.
void GNUNET_CRYPTO_hash(const void *block, size_t size, struct GNUNET_HashCode *ret)
Compute hash of a given block.
Definition: crypto_hash.c:41
enum GNUNET_GenericReturnValue GNUNET_CONTAINER_multihashmap_contains(const struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key)
Check if the map contains any value under the given key (including values that are NULL).
void * GNUNET_CONTAINER_multihashmap_get(const struct GNUNET_CONTAINER_MultiHashMap *map, const struct GNUNET_HashCode *key)
Given a key find a value in the map matching the key.
const struct GNUNET_IDENTITY_PrivateKey * GNUNET_IDENTITY_ego_get_private_key(const struct GNUNET_IDENTITY_Ego *ego)
Obtain the ECC key associated with a ego.
Definition: identity_api.c:639
void GNUNET_IDENTITY_ego_get_public_key(struct GNUNET_IDENTITY_Ego *ego, struct GNUNET_IDENTITY_PublicKey *pk)
Get the identifier (public key) of an ego.
Definition: identity_api.c:652
char * GNUNET_IDENTITY_public_key_to_string(const struct GNUNET_IDENTITY_PublicKey *key)
Creates a (Base32) string representation of the public key.
struct GNUNET_IDENTITY_Handle * GNUNET_IDENTITY_connect(const struct GNUNET_CONFIGURATION_Handle *cfg, GNUNET_IDENTITY_Callback cb, void *cb_cls)
Connect to the identity service.
Definition: identity_api.c:610
void GNUNET_IDENTITY_disconnect(struct GNUNET_IDENTITY_Handle *h)
Disconnect from identity service.
Definition: identity_api.c:921
#define GNUNET_log(kind,...)
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
GNUNET_GenericReturnValue
Named constants for return values.
Definition: gnunet_common.h:96
@ GNUNET_OK
Definition: gnunet_common.h:99
@ GNUNET_YES
@ GNUNET_NO
Definition: gnunet_common.h:98
@ GNUNET_SYSERR
Definition: gnunet_common.h:97
@ GNUNET_ERROR_TYPE_WARNING
@ GNUNET_ERROR_TYPE_DEBUG
int int GNUNET_asprintf(char **buf, const char *format,...) __attribute__((format(printf
Like asprintf, just portable.
#define GNUNET_strdup(a)
Wrapper around GNUNET_xstrdup_.
#define GNUNET_new(type)
Allocate a struct or union of the given type.
#define GNUNET_free(ptr)
Wrapper around free.
#define GNUNET_free_nz(ptr)
Wrapper around free.
void GNUNET_NAMESTORE_disconnect(struct GNUNET_NAMESTORE_Handle *h)
Disconnect from the namestore service (and free associated resources).
struct GNUNET_NAMESTORE_ZoneIterator * GNUNET_NAMESTORE_zone_iteration_start(struct GNUNET_NAMESTORE_Handle *h, const struct GNUNET_IDENTITY_PrivateKey *zone, GNUNET_SCHEDULER_TaskCallback error_cb, void *error_cb_cls, GNUNET_NAMESTORE_RecordMonitor proc, void *proc_cls, GNUNET_SCHEDULER_TaskCallback finish_cb, void *finish_cb_cls)
Starts a new zone iteration (used to periodically PUT all of our records into our DHT).
struct GNUNET_NAMESTORE_QueueEntry * GNUNET_NAMESTORE_records_lookup(struct GNUNET_NAMESTORE_Handle *h, const struct GNUNET_IDENTITY_PrivateKey *pkey, const char *label, GNUNET_SCHEDULER_TaskCallback error_cb, void *error_cb_cls, GNUNET_NAMESTORE_RecordMonitor rm, void *rm_cls)
Lookup an item in the namestore.
void GNUNET_NAMESTORE_zone_iterator_next(struct GNUNET_NAMESTORE_ZoneIterator *it, uint64_t limit)
Calls the record processor specified in GNUNET_NAMESTORE_zone_iteration_start for the next record.
void GNUNET_NAMESTORE_cancel(struct GNUNET_NAMESTORE_QueueEntry *qe)
Cancel a namestore operation.
struct GNUNET_NAMESTORE_QueueEntry * GNUNET_NAMESTORE_records_store(struct GNUNET_NAMESTORE_Handle *h, const struct GNUNET_IDENTITY_PrivateKey *pkey, const char *label, unsigned int rd_count, const struct GNUNET_GNSRECORD_Data *rd, GNUNET_NAMESTORE_ContinuationWithStatus cont, void *cont_cls)
Store an item in the namestore.
struct GNUNET_NAMESTORE_Handle * GNUNET_NAMESTORE_connect(const struct GNUNET_CONFIGURATION_Handle *cfg)
Connect to the namestore service.
void GNUNET_NAMESTORE_zone_iteration_stop(struct GNUNET_NAMESTORE_ZoneIterator *it)
Stops iteration and releases the namestore handle for further calls.
struct MHD_Response * GNUNET_REST_create_response(const char *data)
Create REST MHD response.
Definition: rest.c:57
int GNUNET_REST_handle_request(struct GNUNET_REST_RequestHandle *conn, const struct GNUNET_REST_RequestHandler *handlers, struct GNUNET_REST_RequestHandlerError *err, void *cls)
Definition: rest.c:77
void(* GNUNET_REST_ResultProcessor)(void *cls, struct MHD_Response *resp, int status)
Iterator called on obtained result for a REST result.
#define GNUNET_REST_HANDLER_END
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_now(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run as soon as possible.
Definition: scheduler.c:1281
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:957
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1254
#define GNUNET_TIME_UNIT_FOREVER_REL
Constant used to specify "forever".
#define _(String)
GNU gettext support macro.
Definition: platform.h:177
const char * name
static struct EgoEntry * ego_tail
Ego list.
#define GNUNET_REST_NAMESTORE_ERROR_UNKNOWN
Error message Unknown Error.
static void ns_lookup_cb(void *cls, const struct GNUNET_IDENTITY_PrivateKey *zone, const char *label, unsigned int rd_count, const struct GNUNET_GNSRECORD_Data *rd)
static void create_finished(void *cls, int32_t success, const char *emsg)
Create finished callback.
struct EgoEntry * get_egoentry_namestore(struct RequestHandle *handle, char *name)
Get EgoEntry from list with either a public key or a name If public key and name are not NULL,...
#define GNUNET_REST_API_NS_NAMESTORE
Namestore Namespace.
@ UPDATE_STRATEGY_REPLACE
@ UPDATE_STRATEGY_APPEND
void * libgnunet_plugin_rest_namestore_done(void *cls)
Exit point from the plugin.
static struct GNUNET_NAMESTORE_Handle * ns_handle
Handle to NAMESTORE.
const struct GNUNET_CONFIGURATION_Handle * cfg
The configuration handle.
static void del_finished(void *cls, int32_t success, const char *emsg)
Delete finished callback.
static void namestore_iteration_error(void *cls)
Does internal server error when iteration failed.
static void namestore_list_finished(void *cls)
Iteration over all results finished, build final response.
#define ID_REST_STATE_INIT
State while collecting all egos.
static struct RequestHandle * requests_head
DLL.
static void options_cont(struct GNUNET_REST_RequestHandle *con_handle, const char *url, void *cls)
Respond to OPTIONS request.
static void namestore_list_iteration(void *cls, const struct GNUNET_IDENTITY_PrivateKey *zone_key, const char *rname, unsigned int rd_len, const struct GNUNET_GNSRECORD_Data *rd)
Create a response with requested records.
static enum GNUNET_GenericReturnValue rest_process_request(struct GNUNET_REST_RequestHandle *rest_handle, GNUNET_REST_ResultProcessor proc, void *proc_cls)
Function processing the REST call.
#define GNUNET_REST_NAMESTORE_INVALID_DATA
Error message invalid data.
static int state
The processing state.
#define GNUNET_REST_NAMESTORE_NO_DATA
Error message No data.
static struct EgoEntry * ego_head
Ego list.
static void list_ego(void *cls, struct GNUNET_IDENTITY_Ego *ego, void **ctx, const char *identifier)
void namestore_delete(struct GNUNET_REST_RequestHandle *con_handle, const char *url, void *cls)
Handle namestore DELETE request.
static char * allow_methods
HTTP methods allows for this plugin.
void namestore_add(struct GNUNET_REST_RequestHandle *con_handle, const char *url, void *cls)
Handle namestore POST request.
#define GNUNET_REST_NAMESTORE_FAILED
Error message Failed request.
static struct RequestHandle * requests_tail
DLL.
static struct GNUNET_IDENTITY_Handle * identity_handle
Handle to Identity service.
static void ns_get_lookup_cb(void *cls, const struct GNUNET_IDENTITY_PrivateKey *zone, const char *label, unsigned int rd_len, const struct GNUNET_GNSRECORD_Data *rd)
static void ns_lookup_error_cb(void *cls)
Handle lookup error.
void namestore_add_or_update(struct GNUNET_REST_RequestHandle *con_handle, const char *url, void *cls)
Handle namestore POST/PUT request.
void * libgnunet_plugin_rest_namestore_init(void *cls)
Entry point for the plugin.
void namestore_update(struct GNUNET_REST_RequestHandle *con_handle, const char *url, void *cls)
Handle namestore PUT request.
#define ID_REST_STATE_POST_INIT
Done collecting egos.
#define GNUNET_REST_IDENTITY_NOT_FOUND
Error message No identity found.
static void do_error(void *cls)
Task run on errors.
void namestore_get(struct GNUNET_REST_RequestHandle *con_handle, const char *url, void *cls)
Handle namestore GET request.
static void cleanup_handle(void *cls)
Cleanup lookup handle.
The ego list.
char * identifier
Ego Identifier.
struct EgoEntry * prev
DLL.
char * keystring
Public key string.
struct EgoEntry * next
DLL.
struct GNUNET_IDENTITY_Ego * ego
The Ego.
void * cls
Closure for all of the callbacks.
uint32_t record_type
Type of the GNS/DNS record.
const void * data
Binary value stored in the DNS record.
A 512-bit hashcode.
Handle for an ego.
Definition: identity.h:37
Handle for the service.
Definition: identity_api.c:96
Handle for an operation with the identity service.
Definition: identity_api.c:40
A private key for an identity as per LSD0001.
An identity key as per LSD0001.
Entry in parser specification for GNUNET_JSON_parse().
void * cls
Closure for parser and cleaner.
Connection to the NAMESTORE service.
An QueueEntry used to store information for a pending NAMESTORE record operation.
Definition: namestore_api.c:54
Handle for a zone iterator operation.
struct returned by the initialization function of the plugin
char * name
Plugin name.
void * cls
The closure of the plugin.
enum GNUNET_GenericReturnValue(* process_request)(struct GNUNET_REST_RequestHandle *handle, GNUNET_REST_ResultProcessor proc, void *proc_cls)
Function to process a REST call.
const char * url
The url as string.
struct GNUNET_CONTAINER_MultiHashMap * url_param_map
Map of url parameters.
void(* proc)(struct GNUNET_REST_RequestHandle *handle, const char *url, void *cls)
Namespace to handle.
Entry in list of pending tasks.
Definition: scheduler.c:135
Time for relative time used by GNUnet, in microseconds.
Handle for a plugin.
Definition: block.c:38
struct GNUNET_BLOCK_PluginFunctions * api
Plugin API.
Definition: block.c:47
const struct GNUNET_CONFIGURATION_Handle * cfg
Our configuration.
The request handle.
char * record_name
Records to store.
unsigned int rd_count
Number of records in rd.
char * emsg
Error response message.
struct GNUNET_IDENTITY_Operation * op
IDENTITY Operation.
const struct GNUNET_IDENTITY_PrivateKey * zone_pkey
Private key for the zone.
struct RequestHandle * prev
DLL.
int response_code
Response code.
struct EgoEntry * ego_entry
IDENTITY Operation.
struct GNUNET_SCHEDULER_Task * timeout_task
ID of a task associated with the resolution process.
void * proc_cls
The closure of the result processor.
struct GNUNET_GNSRECORD_Data * rd
Records to store.
GNUNET_REST_ResultProcessor proc
The plugin result processor.
struct RequestHandle * next
DLL.
enum UpdateStrategy update_strategy
How to update the record set.
uint32_t record_type
Record type filter.
json_t * resp_object
Response object.
struct GNUNET_REST_RequestHandle * rest_handle
Rest connection.
struct GNUNET_NAMESTORE_ZoneIterator * list_it
Handle to NAMESTORE it.
char * url
The url.
struct GNUNET_NAMESTORE_QueueEntry * ns_qe
NAMESTORE Operation.
struct GNUNET_TIME_Relative timeout
Desired timeout for the lookup (default is no timeout).