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- /*
- This file is part of GNUnet.
- Copyright (C) 2012-2015 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- or (at your option) any later version.
- GNUnet is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Affero General Public License for more details.
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @author Martin Schanzenbach
- * @author Philippe Buschmann
- * @file namestore/plugin_rest_namestore.c
- * @brief GNUnet Namestore REST plugin
- */
- #include "platform.h"
- #include "gnunet_rest_plugin.h"
- #include "gnunet_gns_service.h"
- #include "gnunet_namestore_service.h"
- #include "gnunet_identity_service.h"
- #include "gnunet_rest_lib.h"
- #include "gnunet_json_lib.h"
- #include "microhttpd.h"
- #include <jansson.h>
- /**
- * Namestore Namespace
- */
- #define GNUNET_REST_API_NS_NAMESTORE "/namestore"
- /**
- * Error message Unknown Error
- */
- #define GNUNET_REST_NAMESTORE_ERROR_UNKNOWN "Unknown Error"
- /**
- * Error message No identity found
- */
- #define GNUNET_REST_IDENTITY_NOT_FOUND "No identity found"
- /**
- * Error message Failed request
- */
- #define GNUNET_REST_NAMESTORE_FAILED "Namestore action failed"
- /**
- * Error message invalid data
- */
- #define GNUNET_REST_NAMESTORE_INVALID_DATA "Data invalid"
- /**
- * Error message No data
- */
- #define GNUNET_REST_NAMESTORE_NO_DATA "No data"
- /**
- * State while collecting all egos
- */
- #define ID_REST_STATE_INIT 0
- /**
- * Done collecting egos
- */
- #define ID_REST_STATE_POST_INIT 1
- /**
- * The configuration handle
- */
- const struct GNUNET_CONFIGURATION_Handle *cfg;
- /**
- * HTTP methods allows for this plugin
- */
- static char *allow_methods;
- /**
- * @brief struct returned by the initialization function of the plugin
- */
- struct Plugin
- {
- const struct GNUNET_CONFIGURATION_Handle *cfg;
- };
- /**
- * The default namestore ego
- */
- struct EgoEntry
- {
- /**
- * DLL
- */
- struct EgoEntry *next;
- /**
- * DLL
- */
- struct EgoEntry *prev;
- /**
- * Ego Identifier
- */
- char *identifier;
- /**
- * Public key string
- */
- char *keystring;
- /**
- * The Ego
- */
- struct GNUNET_IDENTITY_Ego *ego;
- };
- /**
- * The request handle
- */
- struct RequestHandle
- {
- /**
- * Records to store
- */
- char *record_name;
- /**
- * Records to store
- */
- struct GNUNET_GNSRECORD_Data *rd;
- /**
- * Number of records in rd
- */
- unsigned int rd_count;
- /**
- * NAMESTORE Operation
- */
- struct GNUNET_NAMESTORE_QueueEntry *add_qe;
- /**
- * Response object
- */
- json_t *resp_object;
- /**
- * The processing state
- */
- int state;
- /**
- * Handle to NAMESTORE
- */
- struct GNUNET_NAMESTORE_Handle *ns_handle;
- /**
- * Handle to NAMESTORE it
- */
- struct GNUNET_NAMESTORE_ZoneIterator *list_it;
- /**
- * Private key for the zone
- */
- const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_pkey;
- /**
- * IDENTITY Operation
- */
- struct EgoEntry *ego_entry;
- /**
- * Ego list
- */
- struct EgoEntry *ego_head;
- /**
- * Ego list
- */
- struct EgoEntry *ego_tail;
- /**
- * IDENTITY Operation
- */
- struct GNUNET_IDENTITY_Operation *op;
- /**
- * Handle to Identity service.
- */
- struct GNUNET_IDENTITY_Handle *identity_handle;
- /**
- * Rest connection
- */
- struct GNUNET_REST_RequestHandle *rest_handle;
- /**
- * Desired timeout for the lookup (default is no timeout).
- */
- struct GNUNET_TIME_Relative timeout;
- /**
- * ID of a task associated with the resolution process.
- */
- struct GNUNET_SCHEDULER_Task *timeout_task;
- /**
- * The plugin result processor
- */
- GNUNET_REST_ResultProcessor proc;
- /**
- * The closure of the result processor
- */
- void *proc_cls;
- /**
- * The url
- */
- char *url;
- /**
- * Error response message
- */
- char *emsg;
- /**
- * Response code
- */
- int response_code;
- };
- /**
- * Cleanup lookup handle
- * @param handle Handle to clean up
- */
- static void
- cleanup_handle (void *cls)
- {
- struct RequestHandle *handle = cls;
- struct EgoEntry *ego_entry;
- struct EgoEntry *ego_tmp;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Cleaning up\n");
- if (NULL != handle->timeout_task)
- {
- GNUNET_SCHEDULER_cancel (handle->timeout_task);
- handle->timeout_task = NULL;
- }
- if (NULL != handle->record_name)
- GNUNET_free (handle->record_name);
- if (NULL != handle->url)
- GNUNET_free (handle->url);
- if (NULL != handle->emsg)
- GNUNET_free (handle->emsg);
- if (NULL != handle->rd)
- {
- for (int i = 0; i < handle->rd_count; i++)
- {
- if (NULL != handle->rd[i].data)
- GNUNET_free ((void *) handle->rd[i].data);
- }
- GNUNET_free (handle->rd);
- }
- if (NULL != handle->timeout_task)
- GNUNET_SCHEDULER_cancel (handle->timeout_task);
- if (NULL != handle->list_it)
- GNUNET_NAMESTORE_zone_iteration_stop (handle->list_it);
- if (NULL != handle->add_qe)
- GNUNET_NAMESTORE_cancel (handle->add_qe);
- if (NULL != handle->identity_handle)
- GNUNET_IDENTITY_disconnect (handle->identity_handle);
- if (NULL != handle->ns_handle)
- {
- GNUNET_NAMESTORE_disconnect (handle->ns_handle);
- }
- for (ego_entry = handle->ego_head; NULL != ego_entry;)
- {
- ego_tmp = ego_entry;
- ego_entry = ego_entry->next;
- GNUNET_free (ego_tmp->identifier);
- GNUNET_free (ego_tmp->keystring);
- GNUNET_free (ego_tmp);
- }
- if (NULL != handle->resp_object)
- {
- json_decref (handle->resp_object);
- }
- GNUNET_free (handle);
- }
- /**
- * Task run on errors. Reports an error and cleans up everything.
- *
- * @param cls the `struct RequestHandle`
- */
- static void
- do_error (void *cls)
- {
- struct RequestHandle *handle = cls;
- struct MHD_Response *resp;
- json_t *json_error = json_object ();
- char *response;
- if (NULL == handle->emsg)
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_ERROR_UNKNOWN);
- json_object_set_new (json_error, "error", json_string (handle->emsg));
- if (0 == handle->response_code)
- handle->response_code = MHD_HTTP_INTERNAL_SERVER_ERROR;
- response = json_dumps (json_error, 0);
- resp = GNUNET_REST_create_response (response);
- handle->proc (handle->proc_cls, resp, handle->response_code);
- json_decref (json_error);
- GNUNET_free (response);
- GNUNET_SCHEDULER_add_now (&cleanup_handle, handle);
- }
- /**
- * Get EgoEntry from list with either a public key or a name
- * If public key and name are not NULL, it returns the public key result first
- *
- * @param handle the RequestHandle
- * @param pubkey the public key of an identity (only one can be NULL)
- * @param name the name of an identity (only one can be NULL)
- * @return EgoEntry or NULL if not found
- */
- struct EgoEntry *
- get_egoentry_namestore (struct RequestHandle *handle, char *name)
- {
- struct EgoEntry *ego_entry;
- if (NULL != name)
- {
- for (ego_entry = handle->ego_head; NULL != ego_entry;
- ego_entry = ego_entry->next)
- {
- if (0 != strcasecmp (name, ego_entry->identifier))
- continue;
- return ego_entry;
- }
- }
- return NULL;
- }
- /**
- * Does internal server error when iteration failed.
- *
- * @param cls the `struct RequestHandle`
- */
- static void
- namestore_iteration_error (void *cls)
- {
- struct RequestHandle *handle = cls;
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- /**
- * Create finished callback
- *
- * @param cls the `struct RequestHandle`
- * @param success the success indicating integer, GNUNET_OK on success
- * @param emsg the error message (can be NULL)
- */
- static void
- create_finished (void *cls, int32_t success, const char *emsg)
- {
- struct RequestHandle *handle = cls;
- struct MHD_Response *resp;
- handle->add_qe = NULL;
- if (GNUNET_YES != success)
- {
- if (NULL != emsg)
- {
- handle->emsg = GNUNET_strdup (emsg);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->emsg = GNUNET_strdup ("Error storing records");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- resp = GNUNET_REST_create_response (NULL);
- handle->proc (handle->proc_cls, resp, MHD_HTTP_NO_CONTENT);
- GNUNET_SCHEDULER_add_now (&cleanup_handle, handle);
- }
- /**
- * Delete finished callback
- *
- * @param cls the `struct RequestHandle`
- * @param success the success indicating integer, GNUNET_OK on success
- * @param emsg the error message (can be NULL)
- */
- static void
- del_finished (void *cls, int32_t success, const char *emsg)
- {
- struct RequestHandle *handle = cls;
- handle->add_qe = NULL;
- if (GNUNET_NO == success)
- {
- handle->response_code = MHD_HTTP_NOT_FOUND;
- handle->emsg = GNUNET_strdup ("No record found");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- if (GNUNET_SYSERR == success)
- {
- if (NULL != emsg)
- {
- handle->emsg = GNUNET_strdup (emsg);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->emsg = GNUNET_strdup ("Deleting record failed");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->proc (handle->proc_cls,
- GNUNET_REST_create_response (NULL),
- MHD_HTTP_NO_CONTENT);
- GNUNET_SCHEDULER_add_now (&cleanup_handle, handle);
- }
- /**
- * Iteration over all results finished, build final
- * response.
- *
- * @param cls the `struct RequestHandle`
- */
- static void
- namestore_list_finished (void *cls)
- {
- struct RequestHandle *handle = cls;
- char *result_str;
- struct MHD_Response *resp;
- handle->list_it = NULL;
- if (NULL == handle->resp_object)
- handle->resp_object = json_array ();
- result_str = json_dumps (handle->resp_object, 0);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Result %s\n", result_str);
- resp = GNUNET_REST_create_response (result_str);
- handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
- GNUNET_free_non_null (result_str);
- GNUNET_SCHEDULER_add_now (&cleanup_handle, handle);
- }
- /**
- * Create a response with requested records
- *
- * @param handle the RequestHandle
- */
- static void
- namestore_list_iteration (void *cls,
- const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone_key,
- const char *rname,
- unsigned int rd_len,
- const struct GNUNET_GNSRECORD_Data *rd)
- {
- struct RequestHandle *handle = cls;
- json_t *record_obj;
- if (NULL == handle->resp_object)
- handle->resp_object = json_array ();
- record_obj = GNUNET_JSON_from_gnsrecord (rname,
- rd,
- rd_len);
- json_array_append_new (handle->resp_object, record_obj);
- GNUNET_NAMESTORE_zone_iterator_next (handle->list_it, 1);
- }
- /**
- * Handle namestore GET request
- *
- * @param con_handle the connection handle
- * @param url the url
- * @param cls the RequestHandle
- */
- void
- namestore_get (struct GNUNET_REST_RequestHandle *con_handle,
- const char *url,
- void *cls)
- {
- struct RequestHandle *handle = cls;
- struct EgoEntry *ego_entry;
- char *egoname;
- egoname = NULL;
- ego_entry = NULL;
- // set zone to name if given
- if (strlen (GNUNET_REST_API_NS_NAMESTORE) < strlen (handle->url))
- {
- egoname = &handle->url[strlen (GNUNET_REST_API_NS_NAMESTORE) + 1];
- ego_entry = get_egoentry_namestore (handle, egoname);
- if (NULL == ego_entry)
- {
- handle->response_code = MHD_HTTP_NOT_FOUND;
- handle->emsg = GNUNET_strdup (GNUNET_REST_IDENTITY_NOT_FOUND);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- if (NULL != ego_entry)
- handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
- handle->list_it =
- GNUNET_NAMESTORE_zone_iteration_start (handle->ns_handle,
- handle->zone_pkey,
- &namestore_iteration_error,
- handle,
- &namestore_list_iteration,
- handle,
- &namestore_list_finished,
- handle);
- if (NULL == handle->list_it)
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- static void
- ns_lookup_error_cb (void *cls)
- {
- struct RequestHandle *handle = cls;
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- }
- static void
- ns_lookup_cb (void *cls,
- const struct GNUNET_CRYPTO_EcdsaPrivateKey *zone,
- const char *label,
- unsigned int rd_count,
- const struct GNUNET_GNSRECORD_Data *rd)
- {
- struct RequestHandle *handle = cls;
- struct GNUNET_GNSRECORD_Data rd_new[rd_count + handle->rd_count];
- for (int i = 0; i < rd_count; i++)
- rd_new[i] = rd[i];
- for (int j = 0; j < handle->rd_count; j++)
- rd_new[rd_count + j] = handle->rd[j];
- handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
- handle->zone_pkey,
- handle->record_name,
- rd_count + handle->rd_count,
- rd_new,
- &create_finished,
- handle);
- if (NULL == handle->add_qe)
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- /**
- * Handle namestore POST request
- *
- * @param con_handle the connection handle
- * @param url the url
- * @param cls the RequestHandle
- */
- void
- namestore_add (struct GNUNET_REST_RequestHandle *con_handle,
- const char *url,
- void *cls)
- {
- struct RequestHandle *handle = cls;
- struct EgoEntry *ego_entry;
- char *egoname;
- json_t *data_js;
- json_error_t err;
- char term_data[handle->rest_handle->data_size + 1];
- if (0 >= handle->rest_handle->data_size)
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_NO_DATA);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- term_data[handle->rest_handle->data_size] = '\0';
- GNUNET_memcpy (term_data,
- handle->rest_handle->data,
- handle->rest_handle->data_size);
- data_js = json_loads (term_data, JSON_DECODE_ANY, &err);
- struct GNUNET_JSON_Specification gnsspec[] =
- {GNUNET_JSON_spec_gnsrecord (&handle->rd, &handle->rd_count, &handle->record_name), GNUNET_JSON_spec_end ()};
- if (GNUNET_OK != GNUNET_JSON_parse (data_js, gnsspec, NULL, NULL))
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_INVALID_DATA);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- json_decref (data_js);
- return;
- }
- GNUNET_JSON_parse_free (gnsspec);
- if (0 >= strlen (handle->record_name))
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_INVALID_DATA);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- json_decref (data_js);
- return;
- }
- json_decref (data_js);
- egoname = NULL;
- ego_entry = NULL;
- // set zone to name if given
- if (strlen (GNUNET_REST_API_NS_NAMESTORE) < strlen (handle->url))
- {
- egoname = &handle->url[strlen (GNUNET_REST_API_NS_NAMESTORE) + 1];
- ego_entry = get_egoentry_namestore (handle, egoname);
- if (NULL == ego_entry)
- {
- handle->response_code = MHD_HTTP_NOT_FOUND;
- handle->emsg = GNUNET_strdup (GNUNET_REST_IDENTITY_NOT_FOUND);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- if (NULL != ego_entry)
- handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
- handle->add_qe = GNUNET_NAMESTORE_records_lookup (handle->ns_handle,
- handle->zone_pkey,
- handle->record_name,
- &ns_lookup_error_cb,
- handle,
- &ns_lookup_cb,
- handle);
- if (NULL == handle->add_qe)
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- /**
- * Handle namestore DELETE request
- *
- * @param con_handle the connection handle
- * @param url the url
- * @param cls the RequestHandle
- */
- void
- namestore_delete (struct GNUNET_REST_RequestHandle *con_handle,
- const char *url,
- void *cls)
- {
- struct RequestHandle *handle = cls;
- struct GNUNET_HashCode key;
- struct EgoEntry *ego_entry;
- char *egoname;
- egoname = NULL;
- ego_entry = NULL;
- // set zone to name if given
- if (strlen (GNUNET_REST_API_NS_NAMESTORE) < strlen (handle->url))
- {
- egoname = &handle->url[strlen (GNUNET_REST_API_NS_NAMESTORE) + 1];
- ego_entry = get_egoentry_namestore (handle, egoname);
- if (NULL == ego_entry)
- {
- handle->response_code = MHD_HTTP_NOT_FOUND;
- handle->emsg = GNUNET_strdup (GNUNET_REST_IDENTITY_NOT_FOUND);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- if (NULL != ego_entry)
- handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego_entry->ego);
- GNUNET_CRYPTO_hash ("record_name", strlen ("record_name"), &key);
- if (GNUNET_NO ==
- GNUNET_CONTAINER_multihashmap_contains (con_handle->url_param_map, &key))
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_INVALID_DATA);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->record_name = GNUNET_strdup (
- GNUNET_CONTAINER_multihashmap_get (con_handle->url_param_map, &key));
- handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
- handle->zone_pkey,
- handle->record_name,
- 0,
- NULL,
- &del_finished,
- handle);
- if (NULL == handle->add_qe)
- {
- handle->emsg = GNUNET_strdup (GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- }
- /**
- * Respond to OPTIONS request
- *
- * @param con_handle the connection handle
- * @param url the url
- * @param cls the RequestHandle
- */
- static void
- options_cont (struct GNUNET_REST_RequestHandle *con_handle,
- const char *url,
- void *cls)
- {
- struct MHD_Response *resp;
- struct RequestHandle *handle = cls;
- // independent of path return all options
- resp = GNUNET_REST_create_response (NULL);
- MHD_add_response_header (resp, "Access-Control-Allow-Methods", allow_methods);
- handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
- GNUNET_SCHEDULER_add_now (&cleanup_handle, handle);
- return;
- }
- /**
- * Handle rest request
- *
- * @param handle the request handle
- */
- static void
- init_cont (struct RequestHandle *handle)
- {
- struct GNUNET_REST_RequestHandlerError err;
- static const struct GNUNET_REST_RequestHandler handlers[] =
- {{MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_NAMESTORE, &namestore_get},
- {MHD_HTTP_METHOD_POST, GNUNET_REST_API_NS_NAMESTORE, &namestore_add},
- {MHD_HTTP_METHOD_DELETE, GNUNET_REST_API_NS_NAMESTORE, &namestore_delete},
- {MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_NAMESTORE, &options_cont},
- GNUNET_REST_HANDLER_END};
- if (GNUNET_NO ==
- GNUNET_REST_handle_request (handle->rest_handle, handlers, &err, handle))
- {
- handle->response_code = err.error_code;
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- }
- }
- /**
- * This function is initially called for all egos and then again
- * whenever a ego's identifier changes or if it is deleted. At the
- * end of the initial pass over all egos, the function is once called
- * with 'NULL' for 'ego'. That does NOT mean that the callback won't
- * be invoked in the future or that there was an error.
- *
- * When used with 'GNUNET_IDENTITY_create' or 'GNUNET_IDENTITY_get',
- * this function is only called ONCE, and 'NULL' being passed in
- * 'ego' does indicate an error (i.e. name is taken or no default
- * value is known). If 'ego' is non-NULL and if '*ctx'
- * is set in those callbacks, the value WILL be passed to a subsequent
- * call to the identity callback of 'GNUNET_IDENTITY_connect' (if
- * that one was not NULL).
- *
- * When an identity is renamed, this function is called with the
- * (known) ego but the NEW identifier.
- *
- * When an identity is deleted, this function is called with the
- * (known) ego and "NULL" for the 'identifier'. In this case,
- * the 'ego' is henceforth invalid (and the 'ctx' should also be
- * cleaned up).
- *
- * @param cls closure
- * @param ego ego handle
- * @param ctx context for application to store data for this ego
- * (during the lifetime of this process, initially NULL)
- * @param name identifier assigned by the user for this ego,
- * NULL if the user just deleted the ego and it
- * must thus no longer be used
- */
- static void
- id_connect_cb (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *name)
- {
- struct RequestHandle *handle = cls;
- struct EgoEntry *ego_entry;
- struct GNUNET_CRYPTO_EcdsaPublicKey pk;
- if ((NULL == ego) && (ID_REST_STATE_INIT == handle->state))
- {
- handle->state = ID_REST_STATE_POST_INIT;
- init_cont (handle);
- return;
- }
- if (ID_REST_STATE_INIT == handle->state)
- {
- ego_entry = GNUNET_new (struct EgoEntry);
- GNUNET_IDENTITY_ego_get_public_key (ego, &pk);
- ego_entry->keystring = GNUNET_CRYPTO_ecdsa_public_key_to_string (&pk);
- ego_entry->ego = ego;
- GNUNET_asprintf (&ego_entry->identifier, "%s", name);
- GNUNET_CONTAINER_DLL_insert_tail (handle->ego_head,
- handle->ego_tail,
- ego_entry);
- }
- }
- /**
- * Function processing the REST call
- *
- * @param method HTTP method
- * @param url URL of the HTTP request
- * @param data body of the HTTP request (optional)
- * @param data_size length of the body
- * @param proc callback function for the result
- * @param proc_cls closure for callback function
- * @return GNUNET_OK if request accepted
- */
- static void
- rest_process_request (struct GNUNET_REST_RequestHandle *rest_handle,
- GNUNET_REST_ResultProcessor proc,
- void *proc_cls)
- {
- struct RequestHandle *handle = GNUNET_new (struct RequestHandle);
- handle->response_code = 0;
- handle->timeout = GNUNET_TIME_UNIT_FOREVER_REL;
- handle->proc_cls = proc_cls;
- handle->proc = proc;
- handle->rest_handle = rest_handle;
- handle->zone_pkey = NULL;
- handle->url = GNUNET_strdup (rest_handle->url);
- if (handle->url[strlen (handle->url) - 1] == '/')
- handle->url[strlen (handle->url) - 1] = '\0';
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connecting...\n");
- handle->ns_handle = GNUNET_NAMESTORE_connect (cfg);
- handle->identity_handle =
- GNUNET_IDENTITY_connect (cfg, &id_connect_cb, handle);
- handle->timeout_task =
- GNUNET_SCHEDULER_add_delayed (handle->timeout, &do_error, handle);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Connected\n");
- }
- /**
- * Entry point for the plugin.
- *
- * @param cls Config info
- * @return NULL on error, otherwise the plugin context
- */
- void *
- libgnunet_plugin_rest_namestore_init (void *cls)
- {
- static struct Plugin plugin;
- struct GNUNET_REST_Plugin *api;
- cfg = cls;
- if (NULL != plugin.cfg)
- return NULL; /* can only initialize once! */
- memset (&plugin, 0, sizeof (struct Plugin));
- plugin.cfg = cfg;
- api = GNUNET_new (struct GNUNET_REST_Plugin);
- api->cls = &plugin;
- api->name = GNUNET_REST_API_NS_NAMESTORE;
- api->process_request = &rest_process_request;
- GNUNET_asprintf (&allow_methods,
- "%s, %s, %s, %s, %s",
- MHD_HTTP_METHOD_GET,
- MHD_HTTP_METHOD_POST,
- MHD_HTTP_METHOD_PUT,
- MHD_HTTP_METHOD_DELETE,
- MHD_HTTP_METHOD_OPTIONS);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, _ ("Namestore REST API initialized\n"));
- return api;
- }
- /**
- * Exit point from the plugin.
- *
- * @param cls the plugin context (as returned by "init")
- * @return always NULL
- */
- void *
- libgnunet_plugin_rest_namestore_done (void *cls)
- {
- struct GNUNET_REST_Plugin *api = cls;
- struct Plugin *plugin = api->cls;
- plugin->cfg = NULL;
- GNUNET_free_non_null (allow_methods);
- GNUNET_free (api);
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Namestore REST plugin is finished\n");
- return NULL;
- }
- /* end of plugin_rest_namestore.c */
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