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 free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published
+ by the Free Software Foundation; either version 3, 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/>.
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA.
*/
/**
- * @author Martin Schanzenbach
* @author Philippe Buschmann
- * @file gns/plugin_rest_gns.c
- * @brief GNUnet GNS REST plugin
- *
+ * @file gns1/plugin_rest_gns1.c
+ * @brief GNUnet Gns1 REST plugin
*/
#include "platform.h"
#include "gnunet_rest_plugin.h"
-#include <gnunet_dnsparser_lib.h>
-#include <gnunet_identity_service.h>
-#include <gnunet_gnsrecord_lib.h>
-#include <gnunet_namestore_service.h>
-#include <gnunet_gns_service.h>
-#include <gnunet_rest_lib.h>
-#include <gnunet_jsonapi_lib.h>
-#include <gnunet_jsonapi_util.h>
+#include "gnunet_rest_lib.h"
+#include "gnunet_gnsrecord_lib.h"
+#include "microhttpd.h"
#include <jansson.h>
#define GNUNET_REST_API_NS_GNS "/gns"
-#define GNUNET_REST_JSONAPI_GNS_RECORD_TYPE "record_type"
-
+//TODO define other variables
#define GNUNET_REST_PARAMETER_GNS_NAME "name"
-#define GNUNET_REST_JSONAPI_GNS_TYPEINFO "gns_name"
+#define GNUNET_REST_PARAMETER_GNS_RECORD_TYPE "record_type"
-#define GNUNET_REST_JSONAPI_GNS_RECORD "records"
-
-#define GNUNET_REST_JSONAPI_GNS_EGO "ego"
+#define GNUNET_REST_PARAMETER_GNS_NAME "name"
-#define GNUNET_REST_JSONAPI_GNS_PKEY "pkey"
+/**
+ * The configuration handle
+ */
+const struct GNUNET_CONFIGURATION_Handle *cfg;
-#define GNUNET_REST_JSONAPI_GNS_OPTIONS "options"
+/**
+ * HTTP methods allows for this plugin
+ */
+static char* allow_methods;
/**
* @brief struct returned by the initialization function of the plugin
const struct GNUNET_CONFIGURATION_Handle *cfg;
};
-const struct GNUNET_CONFIGURATION_Handle *cfg;
+//TODO add specific structs
-struct LookupHandle
+
+
+struct RequestHandle
{
- /**
- * Handle to GNS service.
- */
- struct GNUNET_GNS_Handle *gns;
+ //TODO add specific entries
/**
- * Desired timeout for the lookup (default is no timeout).
+ * Connection to GNS
*/
- struct GNUNET_TIME_Relative timeout;
+ struct GNUNET_GNS_Handle *gns;
/**
- * Handle to lookup request
+ * Active GNS lookup
*/
- struct GNUNET_GNS_LookupRequest *lookup_request;
+ struct GNUNET_GNS_LookupWithTldRequest *gns_lookup;
/**
- * Handle to rest request
+ * Name to look up
*/
- struct GNUNET_REST_RequestHandle *rest_handle;
+ char *name;
/**
- * Lookup an ego with the identity service.
+ * Record type to look up
*/
- struct GNUNET_IDENTITY_EgoLookup *el;
+ int record_type;
/**
- * Handle for identity service.
+ * Rest connection
*/
- struct GNUNET_IDENTITY_Handle *identity;
-
+ struct GNUNET_REST_RequestHandle *rest_handle;
+
/**
- * Active operation on identity service.
+ * Desired timeout for the lookup (default is no timeout).
*/
- struct GNUNET_IDENTITY_Operation *id_op;
+ struct GNUNET_TIME_Relative timeout;
/**
* ID of a task associated with the resolution process.
*/
- struct GNUNET_SCHEDULER_Task * timeout_task;
-
- /**
- * The root of the received JSON or NULL
- */
- json_t *json_root;
+ struct GNUNET_SCHEDULER_Task *timeout_task;
/**
* The plugin result processor
void *proc_cls;
/**
- * The name to look up
- */
- char *name;
-
- /**
- * The ego to use
- * In string representation from JSON
- */
- const char *ego_str;
-
- /**
- * The Pkey to use
- * In string representation from JSON
+ * The url
*/
- const char *pkey_str;
+ char *url;
/**
- * The record type
+ * Error response message
*/
- int type;
+ char *emsg;
/**
- * The public key of to use for lookup
- */
- struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
-
- /**
- * The public key to use for lookup
- */
- struct GNUNET_CRYPTO_EcdsaPublicKey pkeym;
-
- /**
- * The resolver options
- */
- enum GNUNET_GNS_LocalOptions options;
-
- /**
- * the shorten key
- */
- struct GNUNET_CRYPTO_EcdsaPrivateKey shorten_key;
-
- /**
- * HTTP response code
+ * Reponse code
*/
int response_code;
- /**
- * HTTP response code
- */
- char* emsg;
-
};
/**
- * Cleanup lookup handle.
- *
+ * Cleanup lookup handle
* @param handle Handle to clean up
*/
static void
-cleanup_handle (struct LookupHandle *handle)
+cleanup_handle (struct RequestHandle *handle)
{
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"Cleaning up\n");
- if (NULL != handle->json_root)
- json_decref (handle->json_root);
- if (NULL != handle->name)
- GNUNET_free (handle->name);
- if (NULL != handle->emsg)
- GNUNET_free (handle->emsg);
- if (NULL != handle->el)
- {
- GNUNET_IDENTITY_ego_lookup_cancel (handle->el);
- handle->el = NULL;
- }
- if (NULL != handle->id_op)
+ if (NULL != handle->gns_lookup)
{
- GNUNET_IDENTITY_cancel (handle->id_op);
- handle->id_op = NULL;
- }
- if (NULL != handle->lookup_request)
- {
- GNUNET_GNS_lookup_cancel (handle->lookup_request);
- handle->lookup_request = NULL;
- }
- if (NULL != handle->identity)
- {
- GNUNET_IDENTITY_disconnect (handle->identity);
- handle->identity = NULL;
+ GNUNET_GNS_lookup_with_tld_cancel (handle->gns_lookup);
+ handle->gns_lookup = NULL;
}
if (NULL != handle->gns)
{
if (NULL != handle->timeout_task)
{
GNUNET_SCHEDULER_cancel (handle->timeout_task);
+ handle->timeout_task = NULL;
}
+ if (NULL != handle->url)
+ GNUNET_free (handle->url);
+ if (NULL != handle->name)
+ GNUNET_free (handle->name);
+ if (NULL != handle->emsg)
+ GNUNET_free (handle->emsg);
+
+ //TODO add specific cleanup
+
GNUNET_free (handle);
}
/**
- * Task run on shutdown. Cleans up everything.
+ * Task run on errors. Reports an error and cleans up everything.
*
- * @param cls unused
- * @param tc scheduler context
+ * @param cls the `struct RequestHandle`
*/
static void
do_error (void *cls)
{
- struct LookupHandle *handle = cls;
+ struct RequestHandle *handle = cls;
struct MHD_Response *resp;
char *json_error;
handle->emsg = GNUNET_strdup("Unknown Error");
GNUNET_asprintf (&json_error, "{\"error\": \"%s\"}", handle->emsg);
- handle->response_code = MHD_HTTP_OK;
+
+ if (0 == handle->response_code)
+ handle->response_code = MHD_HTTP_OK;
resp = GNUNET_REST_create_response (json_error);
handle->proc (handle->proc_cls, resp, handle->response_code);
/**
- * Create json representation of a GNSRECORD
+ * Iterator called on obtained result for a GNS lookup.
*
- * @param rd the GNSRECORD_Data
+ * @param cls closure with the object
+ * @param was_gns #GNUNET_NO if name was not a GNS name
+ * @param rd_count number of records in @a rd
+ * @param rd the records in reply
*/
-static json_t *
-gnsrecord_to_json (const struct GNUNET_GNSRECORD_Data *rd)
+static void
+handle_gns_response (void *cls,
+ int was_gns,
+ uint32_t rd_count,
+ const struct GNUNET_GNSRECORD_Data *rd)
{
- const char *typename;
- char *string_val;
- const char *exp_str;
+ struct RequestHandle *handle = cls;
+ struct MHD_Response *resp;
+ json_t *result_array;
json_t *record_obj;
- typename = GNUNET_GNSRECORD_number_to_typename (rd->record_type);
- string_val = GNUNET_GNSRECORD_value_to_string (rd->record_type,
- rd->data,
- rd->data_size);
-
- if (NULL == string_val)
+ if (GNUNET_NO == was_gns)
{
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- "Record of type %d malformed, skipping\n",
- (int) rd->record_type);
- return NULL;
+ handle->emsg = GNUNET_strdup("Name not found in GNS");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
}
- record_obj = json_object ();
- json_object_set_new (record_obj, "type", json_string (typename));
- json_object_set_new (record_obj, "value", json_string (string_val));
- GNUNET_free (string_val);
- if (GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION & rd->flags)
+ if (0 == rd_count)
{
- struct GNUNET_TIME_Relative time_rel;
- time_rel.rel_value_us = rd->expiration_time;
- exp_str = GNUNET_STRINGS_relative_time_to_string (time_rel, 1);
- }
- else
- {
- struct GNUNET_TIME_Absolute time_abs;
- time_abs.abs_value_us = rd->expiration_time;
- exp_str = GNUNET_STRINGS_absolute_time_to_string (time_abs);
+ handle->emsg = GNUNET_strdup("No result found");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
}
- json_object_set_new (record_obj, "expiration_time", json_string (exp_str));
-
- json_object_set_new (record_obj, "expired",
- json_boolean (GNUNET_YES == GNUNET_GNSRECORD_is_expired (rd)));
- return record_obj;
-}
-
-/**
- * Function called with the result of a GNS lookup.
- *
- * @param cls the 'const char *' name that was resolved
- * @param rd_count number of records returned
- * @param rd array of @a rd_count records with the results
- */
-static void
-process_lookup_result (void *cls, uint32_t rd_count,
- const struct GNUNET_GNSRECORD_Data *rd)
-{
- struct LookupHandle *handle = cls;
- struct MHD_Response *resp;
- uint32_t i;
- char *result;
- json_t *result_array;
- json_t *record_obj;
result_array = json_array();
- handle->lookup_request = NULL;
- for (i=0; i<rd_count; i++)
+ //TODO test break!
+ GNUNET_break (NULL != handle->gns_lookup);
+ handle->gns_lookup = NULL;
+
+ for (uint32_t i=0;i<rd_count;i++)
{
- if ( (rd[i].record_type != handle->type) &&
- (GNUNET_GNSRECORD_TYPE_ANY != handle->type) )
+ if ((rd[i].record_type != handle->record_type) &&
+ (GNUNET_GNSRECORD_TYPE_ANY != handle->record_type) )
+ {
continue;
+ }
+
record_obj = gnsrecord_to_json (&(rd[i]));
json_array_append (result_array, record_obj);
json_decref (record_obj);
}
+
result = json_dumps(result_array, 0);
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Result %s\n", result);
resp = GNUNET_REST_create_response (result);
/**
- * Perform the actual resolution, starting with the zone
- * identified by the given public key and the shorten zone.
- *
- * @param pkey public key to use for the zone, can be NULL
- */
-static void
-lookup_with_public_key (struct LookupHandle *handle)
-{
- if (UINT32_MAX == handle->type)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Invalid typename specified, assuming `ANY'\n"));
- handle->type = GNUNET_GNSRECORD_TYPE_ANY;
- }
- if (NULL != handle->name)
- {
- handle->lookup_request = GNUNET_GNS_lookup (handle->gns,
- handle->name,
- &handle->pkey,
- handle->type,
- handle->options,
- &process_lookup_result,
- handle);
- }
- else
- {
- handle->emsg = GNUNET_strdup("Parameter name is missing");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
-}
-
-
-/**
- * Method called to with the ego we are to use for the lookup,
- * when the ego is determined by a name.
- *
- * @param cls closure (NULL, unused)
- * @param ego ego handle, NULL if not found
- */
-static void
-identity_zone_cb (void *cls,
- const struct GNUNET_IDENTITY_Ego *ego)
-{
- struct LookupHandle *handle = cls;
-
- handle->el = NULL;
- if (NULL == ego)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Ego for not found, cannot perform lookup.\n"));
- handle->emsg = GNUNET_strdup ("Ego for not found, cannot perform lookup.");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- else
- {
- GNUNET_IDENTITY_ego_get_public_key (ego, &handle->pkey);
- lookup_with_public_key (handle);
- }
- json_decref(handle->json_root);
-}
-
-
-/**
- * Method called to with the ego we are to use for the lookup,
- * when the ego is the one for the default master zone.
+ * Handle gns1 GET request
*
- * @param cls closure (NULL, unused)
- * @param ego ego handle, NULL if not found
- * @param ctx context for application to store data for this ego
- * (during the lifetime of this process, initially NULL)
- * @param name name assigned by the user for this ego,
- * NULL if the user just deleted the ego and it
- * must thus no longer be used
+ * @param con_handle the connection handle
+ * @param url the url
+ * @param cls the RequestHandle
*/
-static void
-identity_master_cb (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *name)
+void
+get_gns_cont (struct GNUNET_REST_RequestHandle *con_handle,
+ const char* url,
+ void *cls)
{
- const char *dot;
- struct LookupHandle *handle = cls;
-
- handle->id_op = NULL;
- if (NULL == ego)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
- _("Ego for `gns-master' not found, cannot perform lookup. Did you run gnunet-gns-import.sh?\n"));
- handle->emsg = GNUNET_strdup("Ego for `gns-master' not found, cannot perform lookup. Did you run gnunet-gns-import.sh?");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- GNUNET_IDENTITY_ego_get_public_key (ego,
- &handle->pkey);
- /* main name is our own master zone, do no look for that in the DHT */
- handle->options = GNUNET_GNS_LO_LOCAL_MASTER;
- /* if the name is of the form 'label.gnu', never go to the DHT */
- dot = NULL;
- if (NULL != handle->name)
- dot = strchr (handle->name, '.');
- if ( (NULL != dot) &&
- (0 == strcasecmp (dot, ".gnu")) )
- handle->options = GNUNET_GNS_LO_NO_DHT;
- lookup_with_public_key (handle);
-}
-
-/**
- * Handle get request
- *
- * @param handle the lookup handle
- */
-static void
-get_gns_cont (struct GNUNET_REST_RequestHandle *conndata_handle,
- const char* url,
- void *cls)
-{
- struct LookupHandle *handle = cls;
+ struct RequestHandle *handle = cls;
struct GNUNET_HashCode key;
- long int enum_test;
- char *temp_val;
-
- //check for /gns otherwise 404
- if (strlen (GNUNET_REST_API_NS_GNS) > strlen (url))
- {
- handle->emsg = GNUNET_strdup("Wrong URL");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- //connect to gns
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Connecting...\n");
- handle->gns = GNUNET_GNS_connect (cfg);
- handle->identity = GNUNET_IDENTITY_connect (cfg, NULL, NULL);
- handle->timeout_task = GNUNET_SCHEDULER_add_delayed (handle->timeout,
- &do_error, handle);
- GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Connected\n");
- if (NULL == handle->gns)
- {
- GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Connecting to GNS failed\n");
- handle->emsg = GNUNET_strdup("Connecting to GNS failed");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
-
- //check parameter name -> BAD_REQUEST
GNUNET_CRYPTO_hash (GNUNET_REST_PARAMETER_GNS_NAME,
strlen (GNUNET_REST_PARAMETER_GNS_NAME),
&key);
if ( GNUNET_NO
- == GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
- &key))
+ == GNUNET_CONTAINER_multihashmap_contains (con_handle->url_param_map,
+ &key))
{
handle->emsg = GNUNET_strdup("Parameter name is missing");
GNUNET_SCHEDULER_add_now (&do_error, handle);
return;
}
- handle->name = GNUNET_strdup(GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
- &key));
-
- //check parameter record_type, optional
- GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_RECORD_TYPE,
- strlen (GNUNET_REST_JSONAPI_GNS_RECORD_TYPE),
- &key);
- if ( GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
- &key) )
- {
- handle->type = GNUNET_GNSRECORD_typename_to_number(
- GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
- &key));
- }
- else
- {
- handle->type = GNUNET_GNSRECORD_TYPE_ANY;
- }
+ handle->name = GNUNET_strdup(
+ GNUNET_CONTAINER_multihashmap_get (con_handle->url_param_map,&key));
- //check parameter options, optional
- GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_OPTIONS,
- strlen (GNUNET_REST_JSONAPI_GNS_OPTIONS),
+ GNUNET_CRYPTO_hash (GNUNET_REST_PARAMETER_GNS_RECORD_TYPE,
+ strlen (GNUNET_REST_PARAMETER_GNS_RECORD_TYPE),
&key);
- handle->options = GNUNET_GNS_LO_DEFAULT;
- if ( GNUNET_YES
- == GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
- &key))
- {
- temp_val = GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map, &key);
- if (1 < strlen(temp_val))
- {
- handle->options = GNUNET_GNS_LO_DEFAULT;
- }
- else
- {
- //atoi because no valid conversion is default local option
- enum_test = atoi(temp_val);
- if (2 < enum_test)
- handle->options = GNUNET_GNS_LO_DEFAULT;
- else
- handle->options = enum_test;
- }
- }
- else
- handle->options = GNUNET_GNS_LO_DEFAULT;
-
- //check parameter pkey, shortcut to lookup
- GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_PKEY,
- strlen (GNUNET_REST_JSONAPI_GNS_PKEY),
- &key);
- if ( GNUNET_YES
- == GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
- &key))
+ if ( GNUNET_NO
+ == GNUNET_CONTAINER_multihashmap_contains (con_handle->url_param_map,
+ &key))
{
- handle->pkey_str = GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
- &key);
- GNUNET_assert(NULL != handle->pkey_str);
- if (GNUNET_OK
- != GNUNET_CRYPTO_ecdsa_public_key_from_string (
- handle->pkey_str, strlen (handle->pkey_str), &(handle->pkey)))
- {
- handle->emsg = GNUNET_strdup("Parameter pkey has a wrong format");
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- lookup_with_public_key (handle);
+ handle->emsg = GNUNET_strdup("Parameter record_type is missing");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
return;
}
-
- //check parameter ego, lookup public key of ego
- GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_EGO,
- strlen (GNUNET_REST_JSONAPI_GNS_EGO),
- &key);
- if ( GNUNET_YES ==
- GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
- &key) )
+ handle->record_type = GNUNET_strdup(
+ GNUNET_CONTAINER_multihashmap_get (con_handle->url_param_map,&key));
+
+ handle->gns_lookup = GNUNET_GNS_lookup_with_tld (handle->gns,
+ handle->name,
+ handle->record_type,
+ GNUNET_NO,
+ &handle_gns_response,
+ handle);
+ if (NULL == handle->gns_lookup)
{
- handle->ego_str = GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
- &key);
- handle->el = GNUNET_IDENTITY_ego_lookup (cfg,
- handle->ego_str,
- &identity_zone_cb,
- handle);
+ handle->emsg = GNUNET_strdup("GNS lookup failed");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
return;
}
-
- //if name ends with .zkey then get public key
- if ( (NULL != handle->name) &&
- (strlen (handle->name) > 4) &&
- (0 == strcmp (".zkey",
- &handle->name[strlen (handle->name) - 4])) )
- {
- GNUNET_CRYPTO_ecdsa_key_get_public( GNUNET_CRYPTO_ecdsa_key_get_anonymous (),
- &(handle->pkey));
- lookup_with_public_key (handle);
- }
- else //else use gns-master identity
- {
- handle->id_op = GNUNET_IDENTITY_get (handle->identity,
- "gns-master",
- &identity_master_cb,
- handle);
- }
}
+
+
/**
- * Handle rest request
+ * Respond to OPTIONS request
*
- * @param handle the lookup handle
+ * @param con_handle the connection handle
+ * @param url the url
+ * @param cls the RequestHandle
*/
static void
options_cont (struct GNUNET_REST_RequestHandle *con_handle,
void *cls)
{
struct MHD_Response *resp;
- struct LookupHandle *handle = cls;
+ struct RequestHandle *handle = cls;
- //For GNS, independent of path return all options
+ //independent of path return all options
resp = GNUNET_REST_create_response (NULL);
MHD_add_response_header (resp,
"Access-Control-Allow-Methods",
- MHD_HTTP_METHOD_GET);
- handle->proc (handle->proc_cls,
- resp,
- MHD_HTTP_OK);
+ allow_methods);
+ handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
cleanup_handle (handle);
+ return;
}
/**
- * Function processing the REST call
+ * Handle rest request
*
- * @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 @a proc
- * @return #GNUNET_OK if request accepted
+ * @param handle the request handle
*/
static void
-rest_gns_process_request (struct GNUNET_REST_RequestHandle *conndata_handle,
- GNUNET_REST_ResultProcessor proc,
- void *proc_cls)
+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_GNS, &get_gns_cont},
{MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_GNS, &options_cont},
GNUNET_REST_HANDLER_END
};
- struct LookupHandle *handle = GNUNET_new (struct LookupHandle);
- struct GNUNET_REST_RequestHandlerError err;
- handle->timeout = GNUNET_TIME_UNIT_FOREVER_REL;
- handle->proc_cls = proc_cls;
- handle->proc = proc;
- handle->rest_handle = conndata_handle;
-
- if (GNUNET_NO == GNUNET_REST_handle_request (conndata_handle,
+ if (GNUNET_NO == GNUNET_REST_handle_request (handle->rest_handle,
handlers,
&err,
handle))
}
+/**
+ * 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->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->gns = GNUNET_GNS_connect (cfg);
+ if (NULL == handle->gns)
+ {
+ handle->emsg = GNUNET_strdup ("GNS not available");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+
+ init_cont(handle);
+ //TODO connect to specific service
+ //connect ( cfg, [..., &callback_function, handle]);
+ //TODO callback then init_cont(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 the "struct GNUNET_NAMESTORE_PluginEnvironment*"
+ * @param cls Config info
* @return NULL on error, otherwise the plugin context
*/
void *
-libgnunet_plugin_rest_gns_init (void *cls)
+libgnunet_plugin_rest_gns1_init (void *cls)
{
static struct Plugin plugin;
- cfg = cls;
struct GNUNET_REST_Plugin *api;
+ cfg = cls;
if (NULL != plugin.cfg)
return NULL; /* can only initialize once! */
memset (&plugin, 0, sizeof (struct Plugin));
api = GNUNET_new (struct GNUNET_REST_Plugin);
api->cls = &plugin;
api->name = GNUNET_REST_API_NS_GNS;
- api->process_request = &rest_gns_process_request;
- GNUNET_log (GNUNET_ERROR_TYPE_INFO,
- _("GNS REST API initialized\n"));
+ 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,
+ _("Gns1 REST API initialized\n"));
return api;
}
* @return always NULL
*/
void *
-libgnunet_plugin_rest_gns_done (void *cls)
+libgnunet_plugin_rest_gns1_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,
- "GNS REST plugin is finished\n");
+ "Gns1 REST plugin is finished\n");
return NULL;
}
-/* end of plugin_rest_gns.c */
+/* end of plugin_rest_gns1.c */
+
--- /dev/null
+/*
+ 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/>.
+ */
+/**
+ * @author Martin Schanzenbach
+ * @author Philippe Buschmann
+ * @file gns/plugin_rest_gns.c
+ * @brief GNUnet GNS REST plugin
+ *
+ */
+
+#include "platform.h"
+#include "gnunet_rest_plugin.h"
+#include <gnunet_dnsparser_lib.h>
+#include <gnunet_identity_service.h>
+#include <gnunet_gnsrecord_lib.h>
+#include <gnunet_namestore_service.h>
+#include <gnunet_gns_service.h>
+#include <gnunet_rest_lib.h>
+#include <gnunet_jsonapi_lib.h>
+#include <gnunet_jsonapi_util.h>
+#include <jansson.h>
+
+#define GNUNET_REST_API_NS_GNS "/gns"
+
+#define GNUNET_REST_JSONAPI_GNS_RECORD_TYPE "record_type"
+
+#define GNUNET_REST_PARAMETER_GNS_NAME "name"
+
+#define GNUNET_REST_JSONAPI_GNS_TYPEINFO "gns_name"
+
+#define GNUNET_REST_JSONAPI_GNS_RECORD "records"
+
+#define GNUNET_REST_JSONAPI_GNS_EGO "ego"
+
+#define GNUNET_REST_JSONAPI_GNS_PKEY "pkey"
+
+#define GNUNET_REST_JSONAPI_GNS_OPTIONS "options"
+
+/**
+ * @brief struct returned by the initialization function of the plugin
+ */
+struct Plugin
+{
+ const struct GNUNET_CONFIGURATION_Handle *cfg;
+};
+
+const struct GNUNET_CONFIGURATION_Handle *cfg;
+
+struct LookupHandle
+{
+ /**
+ * Handle to GNS service.
+ */
+ struct GNUNET_GNS_Handle *gns;
+
+ /**
+ * Desired timeout for the lookup (default is no timeout).
+ */
+ struct GNUNET_TIME_Relative timeout;
+
+ /**
+ * Handle to lookup request
+ */
+ struct GNUNET_GNS_LookupRequest *lookup_request;
+
+ /**
+ * Handle to rest request
+ */
+ struct GNUNET_REST_RequestHandle *rest_handle;
+
+ /**
+ * Lookup an ego with the identity service.
+ */
+ struct GNUNET_IDENTITY_EgoLookup *el;
+
+ /**
+ * Handle for identity service.
+ */
+ struct GNUNET_IDENTITY_Handle *identity;
+
+ /**
+ * Active operation on identity service.
+ */
+ struct GNUNET_IDENTITY_Operation *id_op;
+
+ /**
+ * ID of a task associated with the resolution process.
+ */
+ struct GNUNET_SCHEDULER_Task * timeout_task;
+
+ /**
+ * The root of the received JSON or NULL
+ */
+ json_t *json_root;
+
+ /**
+ * The plugin result processor
+ */
+ GNUNET_REST_ResultProcessor proc;
+
+ /**
+ * The closure of the result processor
+ */
+ void *proc_cls;
+
+ /**
+ * The name to look up
+ */
+ char *name;
+
+ /**
+ * The ego to use
+ * In string representation from JSON
+ */
+ const char *ego_str;
+
+ /**
+ * The Pkey to use
+ * In string representation from JSON
+ */
+ const char *pkey_str;
+
+ /**
+ * The record type
+ */
+ int type;
+
+ /**
+ * The public key of to use for lookup
+ */
+ struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
+
+ /**
+ * The public key to use for lookup
+ */
+ struct GNUNET_CRYPTO_EcdsaPublicKey pkeym;
+
+ /**
+ * The resolver options
+ */
+ enum GNUNET_GNS_LocalOptions options;
+
+ /**
+ * the shorten key
+ */
+ struct GNUNET_CRYPTO_EcdsaPrivateKey shorten_key;
+
+ /**
+ * HTTP response code
+ */
+ int response_code;
+
+ /**
+ * HTTP response code
+ */
+ char* emsg;
+
+};
+
+
+/**
+ * Cleanup lookup handle.
+ *
+ * @param handle Handle to clean up
+ */
+static void
+cleanup_handle (struct LookupHandle *handle)
+{
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "Cleaning up\n");
+ if (NULL != handle->json_root)
+ json_decref (handle->json_root);
+
+ if (NULL != handle->name)
+ GNUNET_free (handle->name);
+ if (NULL != handle->emsg)
+ GNUNET_free (handle->emsg);
+ if (NULL != handle->el)
+ {
+ GNUNET_IDENTITY_ego_lookup_cancel (handle->el);
+ handle->el = NULL;
+ }
+ if (NULL != handle->id_op)
+ {
+ GNUNET_IDENTITY_cancel (handle->id_op);
+ handle->id_op = NULL;
+ }
+ if (NULL != handle->lookup_request)
+ {
+ GNUNET_GNS_lookup_cancel (handle->lookup_request);
+ handle->lookup_request = NULL;
+ }
+ if (NULL != handle->identity)
+ {
+ GNUNET_IDENTITY_disconnect (handle->identity);
+ handle->identity = NULL;
+ }
+ if (NULL != handle->gns)
+ {
+ GNUNET_GNS_disconnect (handle->gns);
+ handle->gns = NULL;
+ }
+
+ if (NULL != handle->timeout_task)
+ {
+ GNUNET_SCHEDULER_cancel (handle->timeout_task);
+ }
+ GNUNET_free (handle);
+}
+
+
+/**
+ * Task run on shutdown. Cleans up everything.
+ *
+ * @param cls unused
+ * @param tc scheduler context
+ */
+static void
+do_error (void *cls)
+{
+ struct LookupHandle *handle = cls;
+ struct MHD_Response *resp;
+ char *json_error;
+
+ if (NULL == handle->emsg)
+ handle->emsg = GNUNET_strdup("Unknown Error");
+
+ GNUNET_asprintf (&json_error, "{\"error\": \"%s\"}", handle->emsg);
+ handle->response_code = MHD_HTTP_OK;
+
+ resp = GNUNET_REST_create_response (json_error);
+ handle->proc (handle->proc_cls, resp, handle->response_code);
+ cleanup_handle (handle);
+ GNUNET_free(json_error);
+}
+
+
+/**
+ * Create json representation of a GNSRECORD
+ *
+ * @param rd the GNSRECORD_Data
+ */
+static json_t *
+gnsrecord_to_json (const struct GNUNET_GNSRECORD_Data *rd)
+{
+ const char *typename;
+ char *string_val;
+ const char *exp_str;
+ json_t *record_obj;
+
+ typename = GNUNET_GNSRECORD_number_to_typename (rd->record_type);
+ string_val = GNUNET_GNSRECORD_value_to_string (rd->record_type,
+ rd->data,
+ rd->data_size);
+
+ if (NULL == string_val)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Record of type %d malformed, skipping\n",
+ (int) rd->record_type);
+ return NULL;
+ }
+ record_obj = json_object ();
+ json_object_set_new (record_obj, "type", json_string (typename));
+ json_object_set_new (record_obj, "value", json_string (string_val));
+ GNUNET_free (string_val);
+
+ if (GNUNET_GNSRECORD_RF_RELATIVE_EXPIRATION & rd->flags)
+ {
+ struct GNUNET_TIME_Relative time_rel;
+ time_rel.rel_value_us = rd->expiration_time;
+ exp_str = GNUNET_STRINGS_relative_time_to_string (time_rel, 1);
+ }
+ else
+ {
+ struct GNUNET_TIME_Absolute time_abs;
+ time_abs.abs_value_us = rd->expiration_time;
+ exp_str = GNUNET_STRINGS_absolute_time_to_string (time_abs);
+ }
+ json_object_set_new (record_obj, "expiration_time", json_string (exp_str));
+
+ json_object_set_new (record_obj, "expired",
+ json_boolean (GNUNET_YES == GNUNET_GNSRECORD_is_expired (rd)));
+ return record_obj;
+}
+
+/**
+ * Function called with the result of a GNS lookup.
+ *
+ * @param cls the 'const char *' name that was resolved
+ * @param rd_count number of records returned
+ * @param rd array of @a rd_count records with the results
+ */
+static void
+process_lookup_result (void *cls, uint32_t rd_count,
+ const struct GNUNET_GNSRECORD_Data *rd)
+{
+ struct LookupHandle *handle = cls;
+ struct MHD_Response *resp;
+ uint32_t i;
+ char *result;
+ json_t *result_array;
+ json_t *record_obj;
+
+ result_array = json_array();
+ handle->lookup_request = NULL;
+ for (i=0; i<rd_count; i++)
+ {
+ if ( (rd[i].record_type != handle->type) &&
+ (GNUNET_GNSRECORD_TYPE_ANY != handle->type) )
+ continue;
+ record_obj = gnsrecord_to_json (&(rd[i]));
+ json_array_append (result_array, record_obj);
+ json_decref (record_obj);
+ }
+ result = json_dumps(result_array, 0);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Result %s\n", result);
+ resp = GNUNET_REST_create_response (result);
+ handle->proc (handle->proc_cls, resp, MHD_HTTP_OK);
+ GNUNET_free (result);
+ json_decref (result_array);
+ cleanup_handle (handle);
+}
+
+
+/**
+ * Perform the actual resolution, starting with the zone
+ * identified by the given public key and the shorten zone.
+ *
+ * @param pkey public key to use for the zone, can be NULL
+ */
+static void
+lookup_with_public_key (struct LookupHandle *handle)
+{
+ if (UINT32_MAX == handle->type)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Invalid typename specified, assuming `ANY'\n"));
+ handle->type = GNUNET_GNSRECORD_TYPE_ANY;
+ }
+ if (NULL != handle->name)
+ {
+ handle->lookup_request = GNUNET_GNS_lookup (handle->gns,
+ handle->name,
+ &handle->pkey,
+ handle->type,
+ handle->options,
+ &process_lookup_result,
+ handle);
+ }
+ else
+ {
+ handle->emsg = GNUNET_strdup("Parameter name is missing");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+}
+
+
+/**
+ * Method called to with the ego we are to use for the lookup,
+ * when the ego is determined by a name.
+ *
+ * @param cls closure (NULL, unused)
+ * @param ego ego handle, NULL if not found
+ */
+static void
+identity_zone_cb (void *cls,
+ const struct GNUNET_IDENTITY_Ego *ego)
+{
+ struct LookupHandle *handle = cls;
+
+ handle->el = NULL;
+ if (NULL == ego)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Ego for not found, cannot perform lookup.\n"));
+ handle->emsg = GNUNET_strdup ("Ego for not found, cannot perform lookup.");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ else
+ {
+ GNUNET_IDENTITY_ego_get_public_key (ego, &handle->pkey);
+ lookup_with_public_key (handle);
+ }
+ json_decref(handle->json_root);
+}
+
+
+/**
+ * Method called to with the ego we are to use for the lookup,
+ * when the ego is the one for the default master zone.
+ *
+ * @param cls closure (NULL, unused)
+ * @param ego ego handle, NULL if not found
+ * @param ctx context for application to store data for this ego
+ * (during the lifetime of this process, initially NULL)
+ * @param name name 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
+identity_master_cb (void *cls,
+ struct GNUNET_IDENTITY_Ego *ego,
+ void **ctx,
+ const char *name)
+{
+ const char *dot;
+ struct LookupHandle *handle = cls;
+
+ handle->id_op = NULL;
+ if (NULL == ego)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ _("Ego for `gns-master' not found, cannot perform lookup. Did you run gnunet-gns-import.sh?\n"));
+ handle->emsg = GNUNET_strdup("Ego for `gns-master' not found, cannot perform lookup. Did you run gnunet-gns-import.sh?");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ GNUNET_IDENTITY_ego_get_public_key (ego,
+ &handle->pkey);
+ /* main name is our own master zone, do no look for that in the DHT */
+ handle->options = GNUNET_GNS_LO_LOCAL_MASTER;
+ /* if the name is of the form 'label.gnu', never go to the DHT */
+ dot = NULL;
+ if (NULL != handle->name)
+ dot = strchr (handle->name, '.');
+ if ( (NULL != dot) &&
+ (0 == strcasecmp (dot, ".gnu")) )
+ handle->options = GNUNET_GNS_LO_NO_DHT;
+ lookup_with_public_key (handle);
+}
+
+/**
+ * Handle get request
+ *
+ * @param handle the lookup handle
+ */
+static void
+get_gns_cont (struct GNUNET_REST_RequestHandle *conndata_handle,
+ const char* url,
+ void *cls)
+{
+ struct LookupHandle *handle = cls;
+ struct GNUNET_HashCode key;
+ long int enum_test;
+ char *temp_val;
+
+ //check for /gns otherwise 404
+ if (strlen (GNUNET_REST_API_NS_GNS) > strlen (url))
+ {
+ handle->emsg = GNUNET_strdup("Wrong URL");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+
+ //connect to gns
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Connecting...\n");
+ handle->gns = GNUNET_GNS_connect (cfg);
+ handle->identity = GNUNET_IDENTITY_connect (cfg, NULL, NULL);
+ handle->timeout_task = GNUNET_SCHEDULER_add_delayed (handle->timeout,
+ &do_error, handle);
+ GNUNET_log(GNUNET_ERROR_TYPE_DEBUG, "Connected\n");
+ if (NULL == handle->gns)
+ {
+ GNUNET_log(GNUNET_ERROR_TYPE_ERROR, "Connecting to GNS failed\n");
+ handle->emsg = GNUNET_strdup("Connecting to GNS failed");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+
+ //check parameter name -> BAD_REQUEST
+ GNUNET_CRYPTO_hash (GNUNET_REST_PARAMETER_GNS_NAME,
+ strlen (GNUNET_REST_PARAMETER_GNS_NAME),
+ &key);
+ if ( GNUNET_NO
+ == GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
+ &key))
+ {
+ handle->emsg = GNUNET_strdup("Parameter name is missing");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ handle->name = GNUNET_strdup(GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
+ &key));
+
+ //check parameter record_type, optional
+ GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_RECORD_TYPE,
+ strlen (GNUNET_REST_JSONAPI_GNS_RECORD_TYPE),
+ &key);
+ if ( GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
+ &key) )
+ {
+ handle->type = GNUNET_GNSRECORD_typename_to_number(
+ GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
+ &key));
+ }
+ else
+ {
+ handle->type = GNUNET_GNSRECORD_TYPE_ANY;
+ }
+
+ //check parameter options, optional
+ GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_OPTIONS,
+ strlen (GNUNET_REST_JSONAPI_GNS_OPTIONS),
+ &key);
+ handle->options = GNUNET_GNS_LO_DEFAULT;
+ if ( GNUNET_YES
+ == GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
+ &key))
+ {
+ temp_val = GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map, &key);
+ if (1 < strlen(temp_val))
+ {
+ handle->options = GNUNET_GNS_LO_DEFAULT;
+ }
+ else
+ {
+ //atoi because no valid conversion is default local option
+ enum_test = atoi(temp_val);
+ if (2 < enum_test)
+ handle->options = GNUNET_GNS_LO_DEFAULT;
+ else
+ handle->options = enum_test;
+ }
+ }
+ else
+ handle->options = GNUNET_GNS_LO_DEFAULT;
+
+ //check parameter pkey, shortcut to lookup
+ GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_PKEY,
+ strlen (GNUNET_REST_JSONAPI_GNS_PKEY),
+ &key);
+ if ( GNUNET_YES
+ == GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
+ &key))
+ {
+ handle->pkey_str = GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
+ &key);
+ GNUNET_assert(NULL != handle->pkey_str);
+ if (GNUNET_OK
+ != GNUNET_CRYPTO_ecdsa_public_key_from_string (
+ handle->pkey_str, strlen (handle->pkey_str), &(handle->pkey)))
+ {
+ handle->emsg = GNUNET_strdup("Parameter pkey has a wrong format");
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ lookup_with_public_key (handle);
+ return;
+ }
+
+ //check parameter ego, lookup public key of ego
+ GNUNET_CRYPTO_hash (GNUNET_REST_JSONAPI_GNS_EGO,
+ strlen (GNUNET_REST_JSONAPI_GNS_EGO),
+ &key);
+ if ( GNUNET_YES ==
+ GNUNET_CONTAINER_multihashmap_contains (conndata_handle->url_param_map,
+ &key) )
+ {
+ handle->ego_str = GNUNET_CONTAINER_multihashmap_get (conndata_handle->url_param_map,
+ &key);
+ handle->el = GNUNET_IDENTITY_ego_lookup (cfg,
+ handle->ego_str,
+ &identity_zone_cb,
+ handle);
+ return;
+ }
+
+ //if name ends with .zkey then get public key
+ if ( (NULL != handle->name) &&
+ (strlen (handle->name) > 4) &&
+ (0 == strcmp (".zkey",
+ &handle->name[strlen (handle->name) - 4])) )
+ {
+ GNUNET_CRYPTO_ecdsa_key_get_public( GNUNET_CRYPTO_ecdsa_key_get_anonymous (),
+ &(handle->pkey));
+ lookup_with_public_key (handle);
+ }
+ else //else use gns-master identity
+ {
+ handle->id_op = GNUNET_IDENTITY_get (handle->identity,
+ "gns-master",
+ &identity_master_cb,
+ handle);
+ }
+}
+
+/**
+ * Handle rest request
+ *
+ * @param handle the lookup handle
+ */
+static void
+options_cont (struct GNUNET_REST_RequestHandle *con_handle,
+ const char* url,
+ void *cls)
+{
+ struct MHD_Response *resp;
+ struct LookupHandle *handle = cls;
+
+ //For GNS, independent of path return all options
+ resp = GNUNET_REST_create_response (NULL);
+ MHD_add_response_header (resp,
+ "Access-Control-Allow-Methods",
+ MHD_HTTP_METHOD_GET);
+ handle->proc (handle->proc_cls,
+ resp,
+ MHD_HTTP_OK);
+ cleanup_handle (handle);
+}
+
+
+/**
+ * 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 @a proc
+ * @return #GNUNET_OK if request accepted
+ */
+static void
+rest_gns_process_request (struct GNUNET_REST_RequestHandle *conndata_handle,
+ GNUNET_REST_ResultProcessor proc,
+ void *proc_cls)
+{
+ static const struct GNUNET_REST_RequestHandler handlers[] = {
+ {MHD_HTTP_METHOD_GET, GNUNET_REST_API_NS_GNS, &get_gns_cont},
+ {MHD_HTTP_METHOD_OPTIONS, GNUNET_REST_API_NS_GNS, &options_cont},
+ GNUNET_REST_HANDLER_END
+ };
+ struct LookupHandle *handle = GNUNET_new (struct LookupHandle);
+ struct GNUNET_REST_RequestHandlerError err;
+
+ handle->timeout = GNUNET_TIME_UNIT_FOREVER_REL;
+ handle->proc_cls = proc_cls;
+ handle->proc = proc;
+ handle->rest_handle = conndata_handle;
+
+ if (GNUNET_NO == GNUNET_REST_handle_request (conndata_handle,
+ handlers,
+ &err,
+ handle))
+ {
+ handle->response_code = err.error_code;
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ }
+}
+
+
+/**
+ * Entry point for the plugin.
+ *
+ * @param cls the "struct GNUNET_NAMESTORE_PluginEnvironment*"
+ * @return NULL on error, otherwise the plugin context
+ */
+void *
+libgnunet_plugin_rest_gns_init (void *cls)
+{
+ static struct Plugin plugin;
+ cfg = cls;
+ struct GNUNET_REST_Plugin *api;
+
+ 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_GNS;
+ api->process_request = &rest_gns_process_request;
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ _("GNS 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_gns_done (void *cls)
+{
+ struct GNUNET_REST_Plugin *api = cls;
+ struct Plugin *plugin = api->cls;
+
+ plugin->cfg = NULL;
+ GNUNET_free (api);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "GNS REST plugin is finished\n");
+ return NULL;
+}
+
+/* end of plugin_rest_gns.c */
projects / oweals / gnunet.git / commitdiff