$(check_SCRIPTS)
endif
+if HAVE_MHD
+if HAVE_JSON
+REST_PLUGIN = libgnunet_plugin_rest_namestore.la
+endif
+endif
+
lib_LTLIBRARIES = \
libgnunetnamestore.la
+libexec_PROGRAMS = \
+ gnunet-service-namestore
+
+bin_PROGRAMS = \
+ gnunet-namestore \
+ gnunet-zoneimport
+
+if HAVE_MHD
+libexec_PROGRAMS += \
+ gnunet-namestore-fcfsd
+endif
+
+
+plugin_LTLIBRARIES = \
+ $(SQLITE_PLUGIN) \
+ $(POSTGRES_PLUGIN) \
+ $(HEAP_PLUGIN) \
+ $(REST_PLUGIN)
+
+
+libgnunet_plugin_rest_namestore_la_SOURCES = \
+ plugin_rest_namestore.c
+libgnunet_plugin_rest_namestore_la_LIBADD = \
+ libgnunetnamestore.la \
+ $(top_builddir)/src/rest/libgnunetrest.la \
+ $(top_builddir)/src/identity/libgnunetidentity.la \
+ $(top_builddir)/src/json/libgnunetjson.la \
+ $(top_builddir)/src/gnsrecord/libgnunetgnsrecord.la \
+ $(top_builddir)/src/util/libgnunetutil.la $(XLIBS) \
+ $(LTLIBINTL) -ljansson -lmicrohttpd
+libgnunet_plugin_rest_namestore_la_LDFLAGS = \
+ $(GN_PLUGIN_LDFLAGS)
+
+
libgnunetnamestore_la_SOURCES = \
namestore_api.c \
namestore_api_monitor.c \
$(GN_LIB_LDFLAGS) $(WINFLAGS) \
-version-info 0:1:0
-libexec_PROGRAMS = \
- gnunet-service-namestore
-
-bin_PROGRAMS = \
- gnunet-namestore \
- gnunet-zoneimport
-
-if HAVE_MHD
-libexec_PROGRAMS += \
- gnunet-namestore-fcfsd
-endif
gnunet_zoneimport_SOURCES = \
$(GN_LIBINTL)
-plugin_LTLIBRARIES = \
- $(SQLITE_PLUGIN) \
- $(POSTGRES_PLUGIN) \
- $(HEAP_PLUGIN)
-
-
libgnunet_plugin_namestore_heap_la_SOURCES = \
plugin_namestore_heap.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/>.
+
+ 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 No default zone specified
+ */
+#define GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE "No default zone specified"
+
+/**
+ * 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;
+
+ /**
+ * 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)
+ {
+ if (NULL != handle->rd->data)
+ GNUNET_free((void*)handle->rd->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_OK;
+ 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();
+
+ for (unsigned int i = 0; i < rd_len; i++)
+ {
+ if ( (GNUNET_GNSRECORD_TYPE_NICK == rd[i].record_type) &&
+ (0 != strcmp (rname, GNUNET_GNS_EMPTY_LABEL_AT)) )
+ continue;
+
+ record_obj = GNUNET_JSON_from_gns_record(rname,rd);
+
+ if(NULL == record_obj)
+ continue;
+
+ json_array_append (handle->resp_object, record_obj);
+ json_decref (record_obj);
+ }
+
+ GNUNET_NAMESTORE_zone_iterator_next (handle->list_it, 1);
+}
+
+/**
+ * @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 identifier 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
+default_ego_get (void *cls,
+ struct GNUNET_IDENTITY_Ego *ego,
+ void **ctx,
+ const char *identifier)
+{
+ struct RequestHandle *handle = cls;
+ handle->op = NULL;
+
+ if (ego == NULL)
+ {
+ handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE);
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (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;
+ }
+}
+
+
+/**
+ * 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);
+ }
+
+ if (NULL == handle->zone_pkey)
+ {
+ handle->op = GNUNET_IDENTITY_get (handle->identity_handle,
+ "namestore",
+ &default_ego_get,
+ handle);
+ return;
+ }
+ 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;
+ }
+}
+
+
+/**
+ * @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 identifier 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
+default_ego_post (void *cls,
+ struct GNUNET_IDENTITY_Ego *ego,
+ void **ctx,
+ const char *identifier)
+{
+ struct RequestHandle *handle = cls;
+ handle->op = NULL;
+
+ if (ego == NULL)
+ {
+ handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE);
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego);
+
+ handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
+ handle->zone_pkey,
+ handle->record_name,
+ 1,
+ handle->rd,
+ &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 GNUNET_GNSRECORD_Data *gns_record;
+ struct EgoEntry *ego_entry;
+ char *egoname;
+ json_t *data_js;
+ json_t *name_json;
+ json_error_t err;
+ char term_data[handle->rest_handle->data_size + 1];
+
+ struct GNUNET_JSON_Specification gnsspec[] = {
+ GNUNET_JSON_spec_gnsrecord_data(&gns_record),
+ GNUNET_JSON_spec_end ()
+ };
+
+ 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);
+ 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);
+ GNUNET_JSON_parse_free(gnsspec);
+ json_decref (data_js);
+ return;
+ }
+ handle->rd = gns_record;
+
+ name_json = json_object_get(data_js, "record_name");
+ if (!json_is_string(name_json))
+ {
+ handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_INVALID_DATA);
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ json_decref (data_js);
+ return;
+ }
+ handle->record_name = GNUNET_strdup(json_string_value(name_json));
+ if(NULL == handle->record_name)
+ {
+ handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_INVALID_DATA);
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ json_decref (data_js);
+ return;
+ }
+ 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);
+ }
+ if (NULL == handle->zone_pkey)
+ {
+ handle->op = GNUNET_IDENTITY_get (handle->identity_handle,
+ "namestore",
+ &default_ego_post,
+ handle);
+ return;
+ }
+ handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
+ handle->zone_pkey,
+ handle->record_name,
+ 1,
+ handle->rd,
+ &create_finished,
+ handle);
+ if (NULL == handle->add_qe)
+ {
+ handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_FAILED);
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+}
+
+
+/**
+ * @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 identifier 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
+default_ego_delete (void *cls,
+ struct GNUNET_IDENTITY_Ego *ego,
+ void **ctx,
+ const char *identifier)
+{
+ struct RequestHandle *handle = cls;
+ handle->op = NULL;
+
+ if (ego == NULL)
+ {
+ handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE);
+ GNUNET_SCHEDULER_add_now (&do_error, handle);
+ return;
+ }
+ handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego);
+
+ 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;
+ }
+}
+
+
+/**
+ * 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));
+
+ if (NULL == handle->zone_pkey)
+ {
+ handle->op = GNUNET_IDENTITY_get (handle->identity_handle,
+ "namestore",
+ &default_ego_delete,
+ handle);
+ return;
+ }
+
+ 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 */
+
-libgnunet_plugin_rest_namestore_la_SOURCES = \
- plugin_rest_namestore.c
-libgnunet_plugin_rest_namestore_la_LIBADD = \
- $(top_builddir)/src/namestore/libgnunetnamestore.la \
- $(top_builddir)/src/rest/libgnunetrest.la \
- $(top_builddir)/src/identity/libgnunetidentity.la \
- $(top_builddir)/src/json/libgnunetjson.la \
- $(top_builddir)/src/gnsrecord/libgnunetgnsrecord.la \
- $(top_builddir)/src/util/libgnunetutil.la $(XLIBS) \
- $(LTLIBINTL) -ljansson -lmicrohttpd
-libgnunet_plugin_rest_namestore_la_LDFLAGS = \
- $(GN_PLUGIN_LDFLAGS)
-
+++ /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/>.
-
- 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 No default zone specified
- */
-#define GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE "No default zone specified"
-
-/**
- * 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;
-
- /**
- * 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)
- {
- if (NULL != handle->rd->data)
- GNUNET_free((void*)handle->rd->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_OK;
- 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();
-
- for (unsigned int i = 0; i < rd_len; i++)
- {
- if ( (GNUNET_GNSRECORD_TYPE_NICK == rd[i].record_type) &&
- (0 != strcmp (rname, GNUNET_GNS_EMPTY_LABEL_AT)) )
- continue;
-
- record_obj = GNUNET_JSON_from_gns_record(rname,rd);
-
- if(NULL == record_obj)
- continue;
-
- json_array_append (handle->resp_object, record_obj);
- json_decref (record_obj);
- }
-
- GNUNET_NAMESTORE_zone_iterator_next (handle->list_it, 1);
-}
-
-/**
- * @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 identifier 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
-default_ego_get (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *identifier)
-{
- struct RequestHandle *handle = cls;
- handle->op = NULL;
-
- if (ego == NULL)
- {
- handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (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;
- }
-}
-
-
-/**
- * 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);
- }
-
- if (NULL == handle->zone_pkey)
- {
- handle->op = GNUNET_IDENTITY_get (handle->identity_handle,
- "namestore",
- &default_ego_get,
- handle);
- return;
- }
- 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;
- }
-}
-
-
-/**
- * @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 identifier 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
-default_ego_post (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *identifier)
-{
- struct RequestHandle *handle = cls;
- handle->op = NULL;
-
- if (ego == NULL)
- {
- handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego);
-
- handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
- handle->zone_pkey,
- handle->record_name,
- 1,
- handle->rd,
- &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 GNUNET_GNSRECORD_Data *gns_record;
- struct EgoEntry *ego_entry;
- char *egoname;
- json_t *data_js;
- json_t *name_json;
- json_error_t err;
- char term_data[handle->rest_handle->data_size + 1];
-
- struct GNUNET_JSON_Specification gnsspec[] = {
- GNUNET_JSON_spec_gnsrecord_data(&gns_record),
- GNUNET_JSON_spec_end ()
- };
-
- 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);
- 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);
- GNUNET_JSON_parse_free(gnsspec);
- json_decref (data_js);
- return;
- }
- handle->rd = gns_record;
-
- name_json = json_object_get(data_js, "record_name");
- if (!json_is_string(name_json))
- {
- handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_INVALID_DATA);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- json_decref (data_js);
- return;
- }
- handle->record_name = GNUNET_strdup(json_string_value(name_json));
- if(NULL == handle->record_name)
- {
- handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_INVALID_DATA);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- json_decref (data_js);
- return;
- }
- 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);
- }
- if (NULL == handle->zone_pkey)
- {
- handle->op = GNUNET_IDENTITY_get (handle->identity_handle,
- "namestore",
- &default_ego_post,
- handle);
- return;
- }
- handle->add_qe = GNUNET_NAMESTORE_records_store (handle->ns_handle,
- handle->zone_pkey,
- handle->record_name,
- 1,
- handle->rd,
- &create_finished,
- handle);
- if (NULL == handle->add_qe)
- {
- handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_FAILED);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
-}
-
-
-/**
- * @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 identifier 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
-default_ego_delete (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *identifier)
-{
- struct RequestHandle *handle = cls;
- handle->op = NULL;
-
- if (ego == NULL)
- {
- handle->emsg = GNUNET_strdup(GNUNET_REST_NAMESTORE_NO_DEFAULT_ZONE);
- GNUNET_SCHEDULER_add_now (&do_error, handle);
- return;
- }
- handle->zone_pkey = GNUNET_IDENTITY_ego_get_private_key (ego);
-
- 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;
- }
-}
-
-
-/**
- * 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));
-
- if (NULL == handle->zone_pkey)
- {
- handle->op = GNUNET_IDENTITY_get (handle->identity_handle,
- "namestore",
- &default_ego_delete,
- handle);
- return;
- }
-
- 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 */
-
projects / oweals / gnunet.git / commitdiff