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21 * @author Martin Schanzenbach
22 * @file namestore/plugin_rest_namestore.c
23 * @brief GNUnet Namestore REST plugin
28 #include "gnunet_rest_plugin.h"
29 #include "gnunet_namestore_service.h"
30 #include "gnunet_identity_service.h"
31 #include "gnunet_rest_lib.h"
32 #include "gnunet_jsonapi_lib.h"
33 #include "gnunet_jsonapi_util.h"
34 #include "microhttpd.h"
37 #define GNUNET_REST_API_NS_NAMESTORE "/names"
39 #define GNUNET_REST_API_NS_NAMESTORE_ZKEY "/names/zkey"
41 #define GNUNET_REST_JSONAPI_NAMESTORE_TYPEINFO "record"
43 #define GNUNET_REST_JSONAPI_NAMESTORE_NAME "name"
45 #define GNUNET_REST_JSONAPI_NAMESTORE_REVINFO "revinfo"
47 #define GNUNET_REST_JSONAPI_NAMESTORE_RECORD GNUNET_REST_JSONAPI_NAMESTORE_TYPEINFO
49 #define GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE "record_type"
51 #define GNUNET_REST_JSONAPI_NAMESTORE_VALUE "value"
53 #define GNUNET_REST_JSONAPI_NAMESTORE_PUBLIC "public"
55 #define GNUNET_REST_JSONAPI_NAMESTORE_SHADOW "shadow"
57 #define GNUNET_REST_JSONAPI_NAMESTORE_PKEY "pkey"
59 #define GNUNET_REST_JSONAPI_NAMESTORE_ZKEY "zkey"
61 #define GNUNET_REST_JSONAPI_NAMESTORE_EXPIRATION "expiration"
63 #define GNUNET_REST_JSONAPI_NAMESTORE_EGO "ego"
66 * @brief struct returned by the initialization function of the plugin
70 const struct GNUNET_CONFIGURATION_Handle *cfg;
75 * HTTP methods allows for this plugin
77 static char* allow_methods;
79 const struct GNUNET_CONFIGURATION_Handle *cfg;
86 struct RecordEntry *next;
91 struct RecordEntry *prev;
100 struct RecordEntry *record_head;
105 struct record_entry *record_tail;
108 * JSON response object
110 struct GNUNET_JSONAPI_Document *resp_object;
115 struct GNUNET_REST_RequestHandle *rest_handle;
118 * Handle to GNS service.
120 struct GNUNET_IDENTITY_Handle *identity_handle;
123 * Handle to NAMESTORE
125 struct GNUNET_NAMESTORE_Handle *ns_handle;
128 * Handle to NAMESTORE it
130 struct GNUNET_NAMESTORE_ZoneIterator *list_it;
133 * Private key for the zone
135 struct GNUNET_CRYPTO_EcdsaPrivateKey zone_pkey;
138 * Handle to identity lookup
140 struct GNUNET_IDENTITY_EgoLookup *ego_lookup;
143 * Default Ego operation
145 struct GNUNET_IDENTITY_Operation *get_default;
163 * Name of the record to modify
168 * Value of the record
175 const char* zkey_str;
185 struct GNUNET_GNSRECORD_Data *rd;
190 unsigned int rd_count;
193 * NAMESTORE Operation
195 struct GNUNET_NAMESTORE_QueueEntry *add_qe;
198 * NAMESTORE Operation
200 struct GNUNET_NAMESTORE_QueueEntry *reverse_qe;
203 * Desired timeout for the lookup (default is no timeout).
205 struct GNUNET_TIME_Relative timeout;
208 * ID of a task associated with the resolution process.
210 struct GNUNET_SCHEDULER_Task * timeout_task;
213 * The plugin result processor
215 GNUNET_REST_ResultProcessor proc;
218 * The closure of the result processor
230 const struct GNUNET_CONFIGURATION_Handle *cfg;
241 * Cleanup lookup handle
243 * @param handle Handle to clean up
246 cleanup_handle (struct RequestHandle *handle)
248 struct RecordEntry *record_entry;
249 struct RecordEntry *record_tmp;
252 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
254 if (NULL != handle->resp_object)
255 GNUNET_JSONAPI_document_delete (handle->resp_object);
256 if (NULL != handle->name)
257 GNUNET_free (handle->name);
258 if (NULL != handle->timeout_task)
259 GNUNET_SCHEDULER_cancel (handle->timeout_task);
260 if (NULL != handle->ego_lookup)
261 GNUNET_IDENTITY_ego_lookup_cancel (handle->ego_lookup);
262 if (NULL != handle->get_default)
263 GNUNET_IDENTITY_cancel (handle->get_default);
264 if (NULL != handle->list_it)
265 GNUNET_NAMESTORE_zone_iteration_stop (handle->list_it);
266 if (NULL != handle->add_qe)
267 GNUNET_NAMESTORE_cancel (handle->add_qe);
268 if (NULL != handle->identity_handle)
269 GNUNET_IDENTITY_disconnect (handle->identity_handle);
270 if (NULL != handle->ns_handle)
271 GNUNET_NAMESTORE_disconnect (handle->ns_handle);
272 if (NULL != handle->url)
273 GNUNET_free (handle->url);
274 if (NULL != handle->value)
275 GNUNET_free (handle->value);
276 if (NULL != handle->rd)
278 for (i = 0; i < handle->rd_count; i++)
280 if (NULL != handle->rd[i].data)
281 GNUNET_free ((void*)handle->rd[i].data);
283 GNUNET_free (handle->rd);
285 if (NULL != handle->ego_name)
286 GNUNET_free (handle->ego_name);
287 for (record_entry = handle->record_head;
288 NULL != record_entry;)
290 record_tmp = record_entry;
291 record_entry = record_entry->next;
292 GNUNET_free (record_tmp);
294 GNUNET_free (handle);
299 * Create json representation of a GNSRECORD
301 * @param rd the GNSRECORD_Data
304 gnsrecord_to_json (const struct GNUNET_GNSRECORD_Data *rd)
306 const char *typename;
311 typename = GNUNET_GNSRECORD_number_to_typename (rd->record_type);
312 string_val = GNUNET_GNSRECORD_value_to_string (rd->record_type,
316 if (NULL == string_val)
318 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
319 "Record of type %d malformed, skipping\n",
320 (int) rd->record_type);
323 record_obj = json_object();
324 json_object_set_new (record_obj,
325 GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE,
326 json_string (typename));
327 json_object_set_new (record_obj,
328 GNUNET_REST_JSONAPI_NAMESTORE_VALUE,
329 json_string (string_val));
330 GNUNET_free (string_val);
332 if (GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION & rd->flags)
334 struct GNUNET_TIME_Relative time_rel;
335 time_rel.rel_value_us = rd->expiration_time;
336 exp_str = GNUNET_STRINGS_relative_time_to_string (time_rel, 1);
340 struct GNUNET_TIME_Absolute time_abs;
341 time_abs.abs_value_us = rd->expiration_time;
342 exp_str = GNUNET_STRINGS_absolute_time_to_string (time_abs);
344 json_object_set_new (record_obj, GNUNET_REST_JSONAPI_NAMESTORE_EXPIRATION, json_string (exp_str));
346 json_object_set_new (record_obj, "expired",
347 json_boolean (GNUNET_YES == GNUNET_GNSRECORD_is_expired (rd)));
353 * Task run on error. Generates error response and cleans up.
355 * @param cls the request to generate an error response for
360 struct RequestHandle *handle = cls;
361 struct MHD_Response *resp = GNUNET_REST_create_response (NULL);
363 handle->proc (handle->proc_cls, resp, handle->response_code);
364 cleanup_handle (handle);
369 * Task run on timeout.
371 * @param cls the request to time out
374 do_timeout (void *cls)
376 struct RequestHandle *handle = cls;
378 handle->timeout_task = NULL;
384 cleanup_handle_delayed (void *cls)
386 cleanup_handle (cls);
391 * Iteration over all results finished, build final
394 * @param cls the `struct RequestHandle`
397 namestore_list_finished (void *cls)
399 struct RequestHandle *handle = cls;
401 struct MHD_Response *resp;
403 handle->list_it = NULL;
405 GNUNET_JSONAPI_document_serialize (handle->resp_object,
411 resp = GNUNET_REST_create_response (result);
412 handle->proc (handle->proc_cls,
415 GNUNET_free_non_null (result);
416 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed,
423 * Create a response with requested records
425 * @param handle the RequestHandle
428 namestore_list_response (void *cls,
429 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_key,
432 const struct GNUNET_GNSRECORD_Data *rd)
434 struct RequestHandle *handle = cls;
435 struct GNUNET_JSONAPI_Resource *json_resource;
436 json_t *result_array;
440 if (NULL == handle->resp_object)
441 handle->resp_object = GNUNET_JSONAPI_document_new ();
443 if ( (NULL != handle->name) &&
444 (0 != strcmp (handle->name, rname)) )
446 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
447 "%s does not match %s\n", rname, handle->name);
448 GNUNET_NAMESTORE_zone_iterator_next (handle->list_it);
452 result_array = json_array ();
453 for (i=0; i<rd_len; i++)
455 if ( (GNUNET_GNSRECORD_TYPE_NICK == rd[i].record_type) &&
456 (0 != strcmp (rname, "+")) )
459 if ( (rd[i].record_type != handle->type) &&
460 (GNUNET_GNSRECORD_TYPE_ANY != handle->type) )
462 record_obj = gnsrecord_to_json (&(rd[i]));
463 json_array_append (result_array, record_obj);
464 json_decref (record_obj);
467 if (0 < json_array_size(result_array))
469 json_resource = GNUNET_JSONAPI_resource_new (GNUNET_REST_JSONAPI_NAMESTORE_TYPEINFO,
471 GNUNET_JSONAPI_resource_add_attr (json_resource,
472 GNUNET_REST_JSONAPI_NAMESTORE_RECORD,
474 GNUNET_JSONAPI_document_resource_add (handle->resp_object, json_resource);
477 json_decref (result_array);
478 GNUNET_NAMESTORE_zone_iterator_next (handle->list_it);
483 create_finished (void *cls, int32_t success, const char *emsg)
485 struct RequestHandle *handle = cls;
486 struct MHD_Response *resp;
488 handle->add_qe = NULL;
489 if (GNUNET_YES != success)
491 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
492 "Error storing records%s%s\n",
493 (NULL == emsg) ? "" : ": ",
494 (NULL == emsg) ? "" : emsg);
495 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
498 resp = GNUNET_REST_create_response (NULL);
499 handle->proc (handle->proc_cls, resp, MHD_HTTP_NO_CONTENT);
500 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
505 * We're storing a new record; this requires
506 * that no record already exists
508 * @param cls closure, unused
509 * @param zone_key private key of the zone
510 * @param rec_name name that is being mapped (at most 255 characters long)
511 * @param rd_count number of entries in @a rd array
512 * @param rd array of records with data to store
515 create_new_record_cont (void *cls,
516 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_key,
517 const char *rec_name,
518 unsigned int rd_count,
519 const struct GNUNET_GNSRECORD_Data *rd)
521 struct RequestHandle *handle = cls;
523 handle->add_qe = NULL;
524 if (0 != strcmp (rec_name, handle->name))
533 handle->proc (handle->proc_cls,
534 GNUNET_REST_create_response (NULL),
536 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
540 GNUNET_assert (NULL != handle->name);
541 handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
552 del_finished (void *cls,
556 struct RequestHandle *handle = cls;
558 handle->add_qe = NULL;
559 if (GNUNET_NO == success)
561 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
562 _("Deleting record failed, record does not exist%s%s\n"),
563 (NULL != emsg) ? ": " : "",
564 (NULL != emsg) ? emsg : "");
565 GNUNET_SCHEDULER_add_now (&do_error, handle); //do_not_found TODO
568 if (GNUNET_SYSERR == success)
570 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
571 _("Deleting record failed%s%s\n"),
572 (NULL != emsg) ? ": " : "",
573 (NULL != emsg) ? emsg : "");
574 GNUNET_SCHEDULER_add_now (&do_error, handle);
577 handle->proc (handle->proc_cls,
578 GNUNET_REST_create_response (NULL),
579 MHD_HTTP_NO_CONTENT);
580 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
586 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
588 unsigned int rd_count,
589 const struct GNUNET_GNSRECORD_Data *rd)
591 struct RequestHandle *handle = cls;
593 handle->add_qe = NULL;
596 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
597 _("There are no records under label `%s' that could be deleted.\n"),
603 handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
613 namestore_delete_cont (struct GNUNET_REST_RequestHandle *con,
617 struct RequestHandle *handle = cls;
619 if (NULL == handle->name)
621 GNUNET_SCHEDULER_add_now (&do_error, handle);
625 handle->add_qe = GNUNET_NAMESTORE_records_lookup (handle->ns_handle,
636 json_to_gnsrecord (const json_t *records_json,
637 struct GNUNET_GNSRECORD_Data **rd,
638 unsigned int *rd_count)
640 struct GNUNET_TIME_Relative etime_rel;
641 struct GNUNET_TIME_Absolute etime_abs;
645 const char *typestring;
646 const char *expirationstring;
653 *rd_count = json_array_size (records_json);
654 *rd = GNUNET_malloc (sizeof (struct GNUNET_GNSRECORD_Data) * *rd_count);
655 for (i = 0; i < *rd_count; i++)
657 memset (&((*rd)[i]), 0, sizeof (struct GNUNET_GNSRECORD_Data));
658 record_json = json_array_get (records_json, i);
659 type_json = json_object_get (record_json,
660 GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE);
661 if (!json_is_string (type_json))
663 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
664 "Type property is no string\n");
665 return GNUNET_SYSERR;
667 typestring = json_string_value (type_json);
668 (*rd)[i].record_type = GNUNET_GNSRECORD_typename_to_number (typestring);
669 if (UINT32_MAX == (*rd)[i].record_type)
671 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Unsupported type `%s'\n"),
672 json_string_value (type_json));
673 return GNUNET_SYSERR;
675 value_json = json_object_get (record_json,
676 GNUNET_REST_JSONAPI_NAMESTORE_VALUE);
677 if (!json_is_string (value_json))
679 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
680 "Value property is no string\n");
681 return GNUNET_SYSERR;
683 value = GNUNET_strdup (json_string_value (value_json));
684 if (GNUNET_OK != GNUNET_GNSRECORD_string_to_value ((*rd)[i].record_type,
689 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Value `%s' invalid for record type `%s'\n"),
691 return GNUNET_SYSERR;
693 (*rd)[i].data = rdata;
694 (*rd)[i].data_size = rdata_size;
696 * if (1 == handle->is_shadow)
697 rde->flags |= GNUNET_GNSRECORD_RF_SHADOW_RECORD;
698 if (1 != handle->is_public)
699 rde->flags |= GNUNET_GNSRECORD_RF_PRIVATE;
701 exp_json = json_object_get (record_json,
702 GNUNET_REST_JSONAPI_NAMESTORE_EXPIRATION);
703 if (!json_is_string (exp_json))
705 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
706 "Expiration property is no string\n");
707 return GNUNET_SYSERR;
709 expirationstring = json_string_value (exp_json);
710 if (0 == strcmp (expirationstring, "never"))
712 (*rd)[i].expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us;
714 else if (GNUNET_OK ==
715 GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
718 (*rd)[i].expiration_time = etime_rel.rel_value_us;
719 (*rd)[i].flags |= GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION;
721 else if (GNUNET_OK ==
722 GNUNET_STRINGS_fancy_time_to_absolute (expirationstring,
725 (*rd)[i].expiration_time = etime_abs.abs_value_us;
729 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Value `%s' invalid for record type `%s'\n"),
731 return GNUNET_SYSERR;
739 namestore_create_cont (struct GNUNET_REST_RequestHandle *con,
743 struct RequestHandle *handle = cls;
744 struct MHD_Response *resp;
745 struct GNUNET_JSONAPI_Document *json_obj;
746 struct GNUNET_JSONAPI_Resource *json_res;
747 json_t *records_json;
750 char term_data[handle->rest_handle->data_size+1];
751 struct GNUNET_JSON_Specification docspec[] = {
752 GNUNET_JSON_spec_jsonapi_document (&json_obj),
753 GNUNET_JSON_spec_end()
756 if (strlen (GNUNET_REST_API_NS_NAMESTORE) != strlen (handle->url))
758 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
759 "Cannot create under %s\n", handle->url);
760 GNUNET_SCHEDULER_add_now (&do_error, handle);
763 if (0 >= handle->rest_handle->data_size)
765 GNUNET_SCHEDULER_add_now (&do_error, handle);
768 term_data[handle->rest_handle->data_size] = '\0';
769 GNUNET_memcpy (term_data,
770 handle->rest_handle->data,
771 handle->rest_handle->data_size);
772 data_js = json_loads (term_data,
775 GNUNET_assert (GNUNET_OK ==
776 GNUNET_JSON_parse (data_js, docspec,
778 json_decref (data_js);
779 if (NULL == json_obj)
781 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
782 "Unable to parse JSONAPI Object from %s\n",
784 GNUNET_SCHEDULER_add_now (&do_error, handle);
787 if (1 != GNUNET_JSONAPI_document_resource_count (json_obj))
789 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
790 "Cannot create more than 1 resource! (Got %d)\n",
791 GNUNET_JSONAPI_document_resource_count (json_obj));
792 GNUNET_JSONAPI_document_delete (json_obj);
793 GNUNET_SCHEDULER_add_now (&do_error, handle);
796 json_res = GNUNET_JSONAPI_document_get_resource (json_obj, 0);
797 if (GNUNET_NO == GNUNET_JSONAPI_resource_check_type (json_res,
798 GNUNET_REST_JSONAPI_NAMESTORE_RECORD))
800 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
801 "Unsupported JSON data type\n");
802 GNUNET_JSONAPI_document_delete (json_obj);
803 resp = GNUNET_REST_create_response (NULL);
804 handle->proc (handle->proc_cls, resp, MHD_HTTP_CONFLICT);
805 cleanup_handle (handle);
808 handle->name = GNUNET_strdup (GNUNET_JSONAPI_resource_get_id (json_res));
809 records_json = GNUNET_JSONAPI_resource_read_attr (json_res,
810 GNUNET_REST_JSONAPI_NAMESTORE_RECORD);
811 if (NULL == records_json)
813 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
814 "No records given\n");
815 GNUNET_JSONAPI_document_delete (json_obj);
816 GNUNET_SCHEDULER_add_now (&do_error, handle);
819 if (GNUNET_SYSERR == json_to_gnsrecord (records_json, &handle->rd, &handle->rd_count))
821 GNUNET_JSONAPI_document_delete (json_obj);
822 GNUNET_SCHEDULER_add_now (&do_error, handle);
825 GNUNET_JSONAPI_document_delete (json_obj);
827 handle->add_qe = GNUNET_NAMESTORE_records_lookup (handle->ns_handle,
832 &create_new_record_cont,
838 namestore_zkey_response (void *cls,
839 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
841 unsigned int rd_count,
842 const struct GNUNET_GNSRECORD_Data *rd)
844 struct RequestHandle *handle = cls;
845 struct MHD_Response *resp;
846 struct GNUNET_JSONAPI_Document *json_obj;
847 struct GNUNET_JSONAPI_Resource *json_res;
851 handle->reverse_qe = NULL;
852 json_obj = GNUNET_JSONAPI_document_new ();
855 name_json = json_string (label);
856 json_res = GNUNET_JSONAPI_resource_new (GNUNET_REST_JSONAPI_NAMESTORE_REVINFO,
858 GNUNET_JSONAPI_resource_add_attr (json_res,
859 GNUNET_REST_JSONAPI_NAMESTORE_NAME,
861 GNUNET_JSONAPI_document_resource_add (json_obj, json_res);
862 json_decref (name_json);
865 if (GNUNET_SYSERR == GNUNET_JSONAPI_document_serialize (json_obj, &result))
867 GNUNET_JSONAPI_document_delete (json_obj);
868 GNUNET_SCHEDULER_add_now (&do_error, handle);
871 resp = GNUNET_REST_create_response (result);
872 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
873 GNUNET_JSONAPI_document_delete (json_obj);
874 GNUNET_free (result);
875 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
880 namestore_zkey_cont (struct GNUNET_REST_RequestHandle *con,
884 struct RequestHandle *handle = cls;
885 struct GNUNET_HashCode key;
886 struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
888 GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_NAMESTORE_ZKEY,
889 strlen (GNUNET_REST_JSONAPI_NAMESTORE_ZKEY),
892 GNUNET_CONTAINER_multihashmap_contains (handle->rest_handle->url_param_map,
895 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
896 "No zkey given %s\n", handle->url);
897 GNUNET_SCHEDULER_add_now (&do_error, handle);
900 handle->zkey_str = GNUNET_CONTAINER_multihashmap_get (handle->rest_handle->url_param_map,
902 if ((NULL == handle->zkey_str) ||
904 GNUNET_CRYPTO_ecdsa_public_key_from_string (handle->zkey_str,
905 strlen (handle->zkey_str),
908 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
909 "Zkey invalid %s\n", handle->zkey_str);
910 GNUNET_SCHEDULER_add_now (&do_error, handle);
913 handle->reverse_qe = GNUNET_NAMESTORE_zone_to_name (handle->ns_handle,
918 &namestore_zkey_response,
924 namestore_info_cont (struct GNUNET_REST_RequestHandle *con,
928 struct RequestHandle *handle = cls;
930 handle->list_it = GNUNET_NAMESTORE_zone_iteration_start (handle->ns_handle,
934 &namestore_list_response,
936 &namestore_list_finished,
942 get_name_from_url (const char* url)
944 if (strlen (url) <= strlen (GNUNET_REST_API_NS_NAMESTORE))
946 return (char*)url + strlen (GNUNET_REST_API_NS_NAMESTORE) + 1;
950 * Respond to OPTIONS request
952 * @param con_handle the connection handle
954 * @param cls the RequestHandle
957 options_cont (struct GNUNET_REST_RequestHandle *con_handle,
961 struct MHD_Response *resp;
962 struct RequestHandle *handle = cls;
964 //For now, independent of path return all options
965 resp = GNUNET_REST_create_response (NULL);
966 MHD_add_response_header (resp,
967 "Access-Control-Allow-Methods",
969 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
970 cleanup_handle (handle);
975 * Callback invoked from identity service with ego information.
976 * An @a ego of NULL means the ego was not found.
978 * @param cls closure with the configuration
979 * @param ego an ego known to identity service, or NULL
982 identity_cb (void *cls,
983 const struct GNUNET_IDENTITY_Ego *ego)
985 struct RequestHandle *handle = cls;
986 struct MHD_Response *resp;
987 struct GNUNET_REST_RequestHandlerError err;
988 static const struct GNUNET_REST_RequestHandler handlers[] = {
989 {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_NAMESTORE_ZKEY, &namestore_zkey_cont}, //reverse
990 {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_NAMESTORE, &namestore_info_cont}, //list
991 {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_NAMESTORE, &namestore_create_cont}, //create
992 // {MHD_HTTP_METHOD_PUT, GNUNET_REST_API_NS_NAMESTORE, &namestore_edit_cont}, //update. TODO this shoul be PATCH
993 {MHD_HTTP_METHOD_DELETE, GNUNET_REST_API_NS_NAMESTORE, &namestore_delete_cont}, //delete
994 {MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_NAMESTORE, &options_cont},
995 GNUNET_REST_HANDLER_END
998 handle->ego_lookup = NULL;
1001 if (NULL != handle->ego_name)
1003 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1004 _("Ego `%s' not known to identity service\n"),
1007 resp = GNUNET_REST_create_response (NULL);
1008 handle->proc (handle->proc_cls, resp, MHD_HTTP_NOT_FOUND);
1009 cleanup_handle (handle);
1012 handle->zone_pkey = *GNUNET_IDENTITY_ego_get_private_key (ego);
1013 handle->ns_handle = GNUNET_NAMESTORE_connect (cfg);
1014 if (NULL == handle->ns_handle)
1016 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1017 _("Failed to connect to namestore\n"));
1018 GNUNET_SCHEDULER_add_now (&do_error, handle);
1023 GNUNET_JSONAPI_handle_request (handle->rest_handle,
1028 handle->response_code = err.error_code;
1029 GNUNET_SCHEDULER_add_now (&do_error,
1036 default_ego_cb (void *cls,
1037 struct GNUNET_IDENTITY_Ego *ego,
1041 struct RequestHandle *handle = cls;
1042 struct MHD_Response *resp;
1043 handle->get_default = NULL;
1046 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1047 _("No default ego configured in identity service\n"));
1048 resp = GNUNET_REST_create_response (NULL);
1049 handle->proc (handle->proc_cls, resp, MHD_HTTP_NOT_FOUND);
1050 cleanup_handle (handle);
1055 identity_cb (cls, ego);
1060 id_connect_cb (void *cls,
1061 struct GNUNET_IDENTITY_Ego *ego,
1065 struct RequestHandle *handle = cls;
1068 handle->get_default = GNUNET_IDENTITY_get (handle->identity_handle,
1070 &default_ego_cb, handle);
1076 * Function processing the REST call
1078 * @param method HTTP method
1079 * @param url URL of the HTTP request
1080 * @param data body of the HTTP request (optional)
1081 * @param data_size length of the body
1082 * @param proc callback function for the result
1083 * @param proc_cls closure for callback function
1084 * @return #GNUNET_OK if request accepted
1087 rest_identity_process_request(struct GNUNET_REST_RequestHandle *rest_handle,
1088 GNUNET_REST_ResultProcessor proc,
1091 struct RequestHandle *handle = GNUNET_new (struct RequestHandle);
1092 struct MHD_Response *resp;
1093 struct GNUNET_HashCode key;
1098 handle->timeout = GNUNET_TIME_UNIT_FOREVER_REL;
1099 handle->proc_cls = proc_cls;
1100 handle->proc = proc;
1101 handle->rest_handle = rest_handle;
1102 handle->url = GNUNET_strdup (rest_handle->url);
1103 if (handle->url[strlen (handle->url)-1] == '/')
1104 handle->url[strlen (handle->url)-1] = '\0';
1105 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1109 GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_NAMESTORE_EGO,
1110 strlen (GNUNET_REST_JSONAPI_NAMESTORE_EGO),
1113 GNUNET_CONTAINER_multihashmap_contains (handle->rest_handle->url_param_map,
1116 ego = GNUNET_CONTAINER_multihashmap_get (handle->rest_handle->url_param_map,
1120 handle->type = GNUNET_GNSRECORD_TYPE_ANY;
1121 GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE,
1122 strlen (GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE),
1125 GNUNET_CONTAINER_multihashmap_contains (handle->rest_handle->url_param_map,
1128 type = GNUNET_CONTAINER_multihashmap_get (handle->rest_handle->url_param_map,
1131 handle->type = GNUNET_GNSRECORD_typename_to_number (type);
1133 name = get_name_from_url (handle->url);
1135 handle->ego_name = GNUNET_strdup (ego);
1137 handle->name = GNUNET_strdup (name);
1138 if (NULL == handle->ego_name)
1140 handle->identity_handle = GNUNET_IDENTITY_connect (handle->cfg, &id_connect_cb, handle);
1141 if (NULL == handle->identity_handle)
1143 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Cannot connect to identity service\n"));
1144 resp = GNUNET_REST_create_response (NULL);
1145 handle->proc (handle->proc_cls, resp, MHD_HTTP_NOT_FOUND);
1146 cleanup_handle (handle);
1150 handle->ego_lookup = GNUNET_IDENTITY_ego_lookup (cfg,
1154 handle->timeout_task = GNUNET_SCHEDULER_add_delayed (handle->timeout,
1160 * Entry point for the plugin.
1162 * @param cls Config info
1163 * @return NULL on error, otherwise the plugin context
1166 libgnunet_plugin_rest_namestore_init (void *cls)
1168 static struct Plugin plugin;
1170 struct GNUNET_REST_Plugin *api;
1172 if (NULL != plugin.cfg)
1173 return NULL; /* can only initialize once! */
1174 memset (&plugin, 0, sizeof (struct Plugin));
1176 api = GNUNET_new (struct GNUNET_REST_Plugin);
1178 api->name = GNUNET_REST_API_NS_NAMESTORE;
1179 api->process_request = &rest_identity_process_request;
1180 GNUNET_asprintf (&allow_methods,
1181 "%s, %s, %s, %s, %s",
1182 MHD_HTTP_METHOD_GET,
1183 MHD_HTTP_METHOD_POST,
1184 MHD_HTTP_METHOD_PUT,
1185 MHD_HTTP_METHOD_DELETE,
1186 MHD_HTTP_METHOD_OPTIONS);
1187 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1188 _("Namestore REST API initialized\n"));
1194 * Exit point from the plugin.
1196 * @param cls the plugin context (as returned by "init")
1197 * @return always NULL
1200 libgnunet_plugin_rest_namestore_done (void *cls)
1202 struct GNUNET_REST_Plugin *api = cls;
1203 struct Plugin *plugin = api->cls;
1207 GNUNET_free_non_null (allow_methods);
1208 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1209 "Namestore REST plugin is finished\n");
1213 /* end of plugin_rest_namestore.c */