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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;
404 if (NULL == handle->resp_object)
405 handle->resp_object = GNUNET_JSONAPI_document_new ();
408 GNUNET_JSONAPI_document_serialize (handle->resp_object,
411 handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
412 GNUNET_SCHEDULER_add_now (&do_error,
416 resp = GNUNET_REST_create_response (result);
417 handle->proc (handle->proc_cls,
420 GNUNET_free_non_null (result);
421 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed,
428 * Create a response with requested records
430 * @param handle the RequestHandle
433 namestore_list_response (void *cls,
434 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_key,
437 const struct GNUNET_GNSRECORD_Data *rd)
439 struct RequestHandle *handle = cls;
440 struct GNUNET_JSONAPI_Resource *json_resource;
441 json_t *result_array;
445 if (NULL == handle->resp_object)
446 handle->resp_object = GNUNET_JSONAPI_document_new ();
448 if ( (NULL != handle->name) &&
449 (0 != strcmp (handle->name, rname)) )
451 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
452 "%s does not match %s\n", rname, handle->name);
453 GNUNET_NAMESTORE_zone_iterator_next (handle->list_it);
457 result_array = json_array ();
458 for (i=0; i<rd_len; i++)
460 if ( (GNUNET_GNSRECORD_TYPE_NICK == rd[i].record_type) &&
461 (0 != strcmp (rname, "+")) )
464 if ( (rd[i].record_type != handle->type) &&
465 (GNUNET_GNSRECORD_TYPE_ANY != handle->type) )
467 record_obj = gnsrecord_to_json (&(rd[i]));
468 json_array_append (result_array, record_obj);
469 json_decref (record_obj);
472 if (0 < json_array_size(result_array))
474 json_resource = GNUNET_JSONAPI_resource_new (GNUNET_REST_JSONAPI_NAMESTORE_TYPEINFO,
476 GNUNET_JSONAPI_resource_add_attr (json_resource,
477 GNUNET_REST_JSONAPI_NAMESTORE_RECORD,
479 GNUNET_JSONAPI_document_resource_add (handle->resp_object, json_resource);
482 json_decref (result_array);
483 GNUNET_NAMESTORE_zone_iterator_next (handle->list_it);
488 create_finished (void *cls, int32_t success, const char *emsg)
490 struct RequestHandle *handle = cls;
491 struct MHD_Response *resp;
493 handle->add_qe = NULL;
494 if (GNUNET_YES != success)
496 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
497 "Error storing records%s%s\n",
498 (NULL == emsg) ? "" : ": ",
499 (NULL == emsg) ? "" : emsg);
500 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
503 resp = GNUNET_REST_create_response (NULL);
504 handle->proc (handle->proc_cls, resp, MHD_HTTP_NO_CONTENT);
505 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
510 * We're storing a new record; this requires
511 * that no record already exists
513 * @param cls closure, unused
514 * @param zone_key private key of the zone
515 * @param rec_name name that is being mapped (at most 255 characters long)
516 * @param rd_count number of entries in @a rd array
517 * @param rd array of records with data to store
520 create_new_record_cont (void *cls,
521 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_key,
522 const char *rec_name,
523 unsigned int rd_count,
524 const struct GNUNET_GNSRECORD_Data *rd)
526 struct RequestHandle *handle = cls;
528 handle->add_qe = NULL;
529 if (0 != strcmp (rec_name, handle->name))
538 handle->proc (handle->proc_cls,
539 GNUNET_REST_create_response (NULL),
541 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
545 GNUNET_assert (NULL != handle->name);
546 handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
557 del_finished (void *cls,
561 struct RequestHandle *handle = cls;
563 handle->add_qe = NULL;
564 if (GNUNET_NO == success)
566 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
567 _("Deleting record failed, record does not exist%s%s\n"),
568 (NULL != emsg) ? ": " : "",
569 (NULL != emsg) ? emsg : "");
570 GNUNET_SCHEDULER_add_now (&do_error, handle); //do_not_found TODO
573 if (GNUNET_SYSERR == success)
575 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
576 _("Deleting record failed%s%s\n"),
577 (NULL != emsg) ? ": " : "",
578 (NULL != emsg) ? emsg : "");
579 GNUNET_SCHEDULER_add_now (&do_error, handle);
582 handle->proc (handle->proc_cls,
583 GNUNET_REST_create_response (NULL),
584 MHD_HTTP_NO_CONTENT);
585 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
591 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
593 unsigned int rd_count,
594 const struct GNUNET_GNSRECORD_Data *rd)
596 struct RequestHandle *handle = cls;
598 handle->add_qe = NULL;
601 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
602 _("There are no records under label `%s' that could be deleted.\n"),
608 handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
618 namestore_delete_cont (struct GNUNET_REST_RequestHandle *con,
622 struct RequestHandle *handle = cls;
624 if (NULL == handle->name)
626 GNUNET_SCHEDULER_add_now (&do_error, handle);
630 handle->add_qe = GNUNET_NAMESTORE_records_lookup (handle->ns_handle,
641 json_to_gnsrecord (const json_t *records_json,
642 struct GNUNET_GNSRECORD_Data **rd,
643 unsigned int *rd_count)
645 struct GNUNET_TIME_Relative etime_rel;
646 struct GNUNET_TIME_Absolute etime_abs;
650 const char *typestring;
651 const char *expirationstring;
658 *rd_count = json_array_size (records_json);
659 *rd = GNUNET_malloc (sizeof (struct GNUNET_GNSRECORD_Data) * *rd_count);
660 for (i = 0; i < *rd_count; i++)
662 memset (&((*rd)[i]), 0, sizeof (struct GNUNET_GNSRECORD_Data));
663 record_json = json_array_get (records_json, i);
664 type_json = json_object_get (record_json,
665 GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE);
666 if (!json_is_string (type_json))
668 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
669 "Type property is no string\n");
670 return GNUNET_SYSERR;
672 typestring = json_string_value (type_json);
673 (*rd)[i].record_type = GNUNET_GNSRECORD_typename_to_number (typestring);
674 if (UINT32_MAX == (*rd)[i].record_type)
676 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Unsupported type `%s'\n"),
677 json_string_value (type_json));
678 return GNUNET_SYSERR;
680 value_json = json_object_get (record_json,
681 GNUNET_REST_JSONAPI_NAMESTORE_VALUE);
682 if (!json_is_string (value_json))
684 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
685 "Value property is no string\n");
686 return GNUNET_SYSERR;
688 value = GNUNET_strdup (json_string_value (value_json));
689 if (GNUNET_OK != GNUNET_GNSRECORD_string_to_value ((*rd)[i].record_type,
694 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Value `%s' invalid for record type `%s'\n"),
696 return GNUNET_SYSERR;
698 (*rd)[i].data = rdata;
699 (*rd)[i].data_size = rdata_size;
701 * if (1 == handle->is_shadow)
702 rde->flags |= GNUNET_GNSRECORD_RF_SHADOW_RECORD;
703 if (1 != handle->is_public)
704 rde->flags |= GNUNET_GNSRECORD_RF_PRIVATE;
706 exp_json = json_object_get (record_json,
707 GNUNET_REST_JSONAPI_NAMESTORE_EXPIRATION);
708 if (!json_is_string (exp_json))
710 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
711 "Expiration property is no string\n");
712 return GNUNET_SYSERR;
714 expirationstring = json_string_value (exp_json);
715 if (0 == strcmp (expirationstring, "never"))
717 (*rd)[i].expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value_us;
719 else if (GNUNET_OK ==
720 GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
723 (*rd)[i].expiration_time = etime_rel.rel_value_us;
724 (*rd)[i].flags |= GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION;
726 else if (GNUNET_OK ==
727 GNUNET_STRINGS_fancy_time_to_absolute (expirationstring,
730 (*rd)[i].expiration_time = etime_abs.abs_value_us;
734 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Value `%s' invalid for record type `%s'\n"),
736 return GNUNET_SYSERR;
744 namestore_create_cont (struct GNUNET_REST_RequestHandle *con,
748 struct RequestHandle *handle = cls;
749 struct MHD_Response *resp;
750 struct GNUNET_JSONAPI_Document *json_obj;
751 struct GNUNET_JSONAPI_Resource *json_res;
752 json_t *records_json;
755 char term_data[handle->rest_handle->data_size+1];
756 struct GNUNET_JSON_Specification docspec[] = {
757 GNUNET_JSON_spec_jsonapi_document (&json_obj),
758 GNUNET_JSON_spec_end()
761 if (strlen (GNUNET_REST_API_NS_NAMESTORE) != strlen (handle->url))
763 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
764 "Cannot create under %s\n", handle->url);
765 GNUNET_SCHEDULER_add_now (&do_error, handle);
768 if (0 >= handle->rest_handle->data_size)
770 GNUNET_SCHEDULER_add_now (&do_error, handle);
773 term_data[handle->rest_handle->data_size] = '\0';
774 GNUNET_memcpy (term_data,
775 handle->rest_handle->data,
776 handle->rest_handle->data_size);
777 data_js = json_loads (term_data,
780 GNUNET_assert (GNUNET_OK ==
781 GNUNET_JSON_parse (data_js, docspec,
783 json_decref (data_js);
784 if (NULL == json_obj)
786 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
787 "Unable to parse JSONAPI Object from %s\n",
789 GNUNET_SCHEDULER_add_now (&do_error, handle);
792 if (1 != GNUNET_JSONAPI_document_resource_count (json_obj))
794 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
795 "Cannot create more than 1 resource! (Got %d)\n",
796 GNUNET_JSONAPI_document_resource_count (json_obj));
797 GNUNET_JSONAPI_document_delete (json_obj);
798 GNUNET_SCHEDULER_add_now (&do_error, handle);
801 json_res = GNUNET_JSONAPI_document_get_resource (json_obj, 0);
802 if (GNUNET_NO == GNUNET_JSONAPI_resource_check_type (json_res,
803 GNUNET_REST_JSONAPI_NAMESTORE_RECORD))
805 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
806 "Unsupported JSON data type\n");
807 GNUNET_JSONAPI_document_delete (json_obj);
808 resp = GNUNET_REST_create_response (NULL);
809 handle->proc (handle->proc_cls, resp, MHD_HTTP_CONFLICT);
810 cleanup_handle (handle);
813 handle->name = GNUNET_strdup (GNUNET_JSONAPI_resource_get_id (json_res));
814 records_json = GNUNET_JSONAPI_resource_read_attr (json_res,
815 GNUNET_REST_JSONAPI_NAMESTORE_RECORD);
816 if (NULL == records_json)
818 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
819 "No records given\n");
820 GNUNET_JSONAPI_document_delete (json_obj);
821 GNUNET_SCHEDULER_add_now (&do_error, handle);
824 if (GNUNET_SYSERR == json_to_gnsrecord (records_json, &handle->rd, &handle->rd_count))
826 GNUNET_JSONAPI_document_delete (json_obj);
827 GNUNET_SCHEDULER_add_now (&do_error, handle);
830 GNUNET_JSONAPI_document_delete (json_obj);
832 handle->add_qe = GNUNET_NAMESTORE_records_lookup (handle->ns_handle,
837 &create_new_record_cont,
843 namestore_zkey_response (void *cls,
844 const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
846 unsigned int rd_count,
847 const struct GNUNET_GNSRECORD_Data *rd)
849 struct RequestHandle *handle = cls;
850 struct MHD_Response *resp;
851 struct GNUNET_JSONAPI_Document *json_obj;
852 struct GNUNET_JSONAPI_Resource *json_res;
856 handle->reverse_qe = NULL;
857 json_obj = GNUNET_JSONAPI_document_new ();
860 name_json = json_string (label);
861 json_res = GNUNET_JSONAPI_resource_new (GNUNET_REST_JSONAPI_NAMESTORE_REVINFO,
863 GNUNET_JSONAPI_resource_add_attr (json_res,
864 GNUNET_REST_JSONAPI_NAMESTORE_NAME,
866 GNUNET_JSONAPI_document_resource_add (json_obj, json_res);
867 json_decref (name_json);
870 if (GNUNET_SYSERR == GNUNET_JSONAPI_document_serialize (json_obj, &result))
872 GNUNET_JSONAPI_document_delete (json_obj);
873 GNUNET_SCHEDULER_add_now (&do_error, handle);
876 resp = GNUNET_REST_create_response (result);
877 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
878 GNUNET_JSONAPI_document_delete (json_obj);
879 GNUNET_free (result);
880 GNUNET_SCHEDULER_add_now (&cleanup_handle_delayed, handle);
885 namestore_zkey_cont (struct GNUNET_REST_RequestHandle *con,
889 struct RequestHandle *handle = cls;
890 struct GNUNET_HashCode key;
891 struct GNUNET_CRYPTO_EcdsaPublicKey pubkey;
893 GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_NAMESTORE_ZKEY,
894 strlen (GNUNET_REST_JSONAPI_NAMESTORE_ZKEY),
897 GNUNET_CONTAINER_multihashmap_contains (handle->rest_handle->url_param_map,
900 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
901 "No zkey given %s\n", handle->url);
902 GNUNET_SCHEDULER_add_now (&do_error, handle);
905 handle->zkey_str = GNUNET_CONTAINER_multihashmap_get (handle->rest_handle->url_param_map,
907 if ((NULL == handle->zkey_str) ||
909 GNUNET_CRYPTO_ecdsa_public_key_from_string (handle->zkey_str,
910 strlen (handle->zkey_str),
913 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
914 "Zkey invalid %s\n", handle->zkey_str);
915 GNUNET_SCHEDULER_add_now (&do_error, handle);
918 handle->reverse_qe = GNUNET_NAMESTORE_zone_to_name (handle->ns_handle,
923 &namestore_zkey_response,
929 namestore_info_cont (struct GNUNET_REST_RequestHandle *con,
933 struct RequestHandle *handle = cls;
935 handle->list_it = GNUNET_NAMESTORE_zone_iteration_start (handle->ns_handle,
939 &namestore_list_response,
941 &namestore_list_finished,
947 get_name_from_url (const char* url)
949 if (strlen (url) <= strlen (GNUNET_REST_API_NS_NAMESTORE))
951 return (char*)url + strlen (GNUNET_REST_API_NS_NAMESTORE) + 1;
955 * Respond to OPTIONS request
957 * @param con_handle the connection handle
959 * @param cls the RequestHandle
962 options_cont (struct GNUNET_REST_RequestHandle *con_handle,
966 struct MHD_Response *resp;
967 struct RequestHandle *handle = cls;
969 //For now, independent of path return all options
970 resp = GNUNET_REST_create_response (NULL);
971 MHD_add_response_header (resp,
972 "Access-Control-Allow-Methods",
974 handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
975 cleanup_handle (handle);
980 * Callback invoked from identity service with ego information.
981 * An @a ego of NULL means the ego was not found.
983 * @param cls closure with the configuration
984 * @param ego an ego known to identity service, or NULL
987 identity_cb (void *cls,
988 const struct GNUNET_IDENTITY_Ego *ego)
990 struct RequestHandle *handle = cls;
991 struct MHD_Response *resp;
992 struct GNUNET_REST_RequestHandlerError err;
993 static const struct GNUNET_REST_RequestHandler handlers[] = {
994 {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_NAMESTORE_ZKEY, &namestore_zkey_cont}, //reverse
995 {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_NAMESTORE, &namestore_info_cont}, //list
996 {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_NAMESTORE, &namestore_create_cont}, //create
997 // {MHD_HTTP_METHOD_PUT, GNUNET_REST_API_NS_NAMESTORE, &namestore_edit_cont}, //update. TODO this shoul be PATCH
998 {MHD_HTTP_METHOD_DELETE, GNUNET_REST_API_NS_NAMESTORE, &namestore_delete_cont}, //delete
999 {MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_NAMESTORE, &options_cont},
1000 GNUNET_REST_HANDLER_END
1003 handle->ego_lookup = NULL;
1006 if (NULL != handle->ego_name)
1008 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1009 _("Ego `%s' not known to identity service\n"),
1012 resp = GNUNET_REST_create_response (NULL);
1013 handle->proc (handle->proc_cls, resp, MHD_HTTP_NOT_FOUND);
1014 cleanup_handle (handle);
1017 handle->zone_pkey = *GNUNET_IDENTITY_ego_get_private_key (ego);
1018 handle->ns_handle = GNUNET_NAMESTORE_connect (cfg);
1019 if (NULL == handle->ns_handle)
1021 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1022 _("Failed to connect to namestore\n"));
1023 GNUNET_SCHEDULER_add_now (&do_error, handle);
1028 GNUNET_JSONAPI_handle_request (handle->rest_handle,
1033 handle->response_code = err.error_code;
1034 GNUNET_SCHEDULER_add_now (&do_error,
1041 default_ego_cb (void *cls,
1042 struct GNUNET_IDENTITY_Ego *ego,
1046 struct RequestHandle *handle = cls;
1047 struct MHD_Response *resp;
1048 handle->get_default = NULL;
1051 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
1052 _("No default ego configured in identity service\n"));
1053 resp = GNUNET_REST_create_response (NULL);
1054 handle->proc (handle->proc_cls, resp, MHD_HTTP_NOT_FOUND);
1055 cleanup_handle (handle);
1060 identity_cb (cls, ego);
1065 id_connect_cb (void *cls,
1066 struct GNUNET_IDENTITY_Ego *ego,
1070 struct RequestHandle *handle = cls;
1073 handle->get_default = GNUNET_IDENTITY_get (handle->identity_handle,
1075 &default_ego_cb, handle);
1081 * Function processing the REST call
1083 * @param method HTTP method
1084 * @param url URL of the HTTP request
1085 * @param data body of the HTTP request (optional)
1086 * @param data_size length of the body
1087 * @param proc callback function for the result
1088 * @param proc_cls closure for callback function
1089 * @return #GNUNET_OK if request accepted
1092 rest_identity_process_request(struct GNUNET_REST_RequestHandle *rest_handle,
1093 GNUNET_REST_ResultProcessor proc,
1096 struct RequestHandle *handle = GNUNET_new (struct RequestHandle);
1097 struct MHD_Response *resp;
1098 struct GNUNET_HashCode key;
1103 handle->timeout = GNUNET_TIME_UNIT_FOREVER_REL;
1104 handle->proc_cls = proc_cls;
1105 handle->proc = proc;
1106 handle->rest_handle = rest_handle;
1107 handle->url = GNUNET_strdup (rest_handle->url);
1108 if (handle->url[strlen (handle->url)-1] == '/')
1109 handle->url[strlen (handle->url)-1] = '\0';
1110 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1114 GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_NAMESTORE_EGO,
1115 strlen (GNUNET_REST_JSONAPI_NAMESTORE_EGO),
1118 GNUNET_CONTAINER_multihashmap_contains (handle->rest_handle->url_param_map,
1121 ego = GNUNET_CONTAINER_multihashmap_get (handle->rest_handle->url_param_map,
1125 handle->type = GNUNET_GNSRECORD_TYPE_ANY;
1126 GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE,
1127 strlen (GNUNET_REST_JSONAPI_NAMESTORE_RECORD_TYPE),
1130 GNUNET_CONTAINER_multihashmap_contains (handle->rest_handle->url_param_map,
1133 type = GNUNET_CONTAINER_multihashmap_get (handle->rest_handle->url_param_map,
1136 handle->type = GNUNET_GNSRECORD_typename_to_number (type);
1138 name = get_name_from_url (handle->url);
1140 handle->ego_name = GNUNET_strdup (ego);
1142 handle->name = GNUNET_strdup (name);
1143 if (NULL == handle->ego_name)
1145 handle->identity_handle = GNUNET_IDENTITY_connect (handle->cfg, &id_connect_cb, handle);
1146 if (NULL == handle->identity_handle)
1148 GNUNET_log (GNUNET_ERROR_TYPE_ERROR, _("Cannot connect to identity service\n"));
1149 resp = GNUNET_REST_create_response (NULL);
1150 handle->proc (handle->proc_cls, resp, MHD_HTTP_NOT_FOUND);
1151 cleanup_handle (handle);
1155 handle->ego_lookup = GNUNET_IDENTITY_ego_lookup (cfg,
1159 handle->timeout_task = GNUNET_SCHEDULER_add_delayed (handle->timeout,
1165 * Entry point for the plugin.
1167 * @param cls Config info
1168 * @return NULL on error, otherwise the plugin context
1171 libgnunet_plugin_rest_namestore_init (void *cls)
1173 static struct Plugin plugin;
1175 struct GNUNET_REST_Plugin *api;
1177 if (NULL != plugin.cfg)
1178 return NULL; /* can only initialize once! */
1179 memset (&plugin, 0, sizeof (struct Plugin));
1181 api = GNUNET_new (struct GNUNET_REST_Plugin);
1183 api->name = GNUNET_REST_API_NS_NAMESTORE;
1184 api->process_request = &rest_identity_process_request;
1185 GNUNET_asprintf (&allow_methods,
1186 "%s, %s, %s, %s, %s",
1187 MHD_HTTP_METHOD_GET,
1188 MHD_HTTP_METHOD_POST,
1189 MHD_HTTP_METHOD_PUT,
1190 MHD_HTTP_METHOD_DELETE,
1191 MHD_HTTP_METHOD_OPTIONS);
1192 GNUNET_log (GNUNET_ERROR_TYPE_INFO,
1193 _("Namestore REST API initialized\n"));
1199 * Exit point from the plugin.
1201 * @param cls the plugin context (as returned by "init")
1202 * @return always NULL
1205 libgnunet_plugin_rest_namestore_done (void *cls)
1207 struct GNUNET_REST_Plugin *api = cls;
1208 struct Plugin *plugin = api->cls;
1212 GNUNET_free_non_null (allow_methods);
1213 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
1214 "Namestore REST plugin is finished\n");
1218 /* end of plugin_rest_namestore.c */