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Diffstat (limited to 'src/testing/testing_api_cmd_serialize_keys.c')
| -rw-r--r-- | src/testing/testing_api_cmd_serialize_keys.c | 295 |
1 files changed, 295 insertions, 0 deletions
diff --git a/src/testing/testing_api_cmd_serialize_keys.c b/src/testing/testing_api_cmd_serialize_keys.c new file mode 100644 index 000000000..296a2ddc7 --- /dev/null +++ b/src/testing/testing_api_cmd_serialize_keys.c @@ -0,0 +1,295 @@ +/* + This file is part of TALER + (C) 2018 Taler Systems SA + + TALER 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. + + TALER 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 General Public License for more details. + + You should have received a copy of the GNU General Public + License along with TALER; see the file COPYING. If not, see + <http://www.gnu.org/licenses/> +*/ +/** + * @file testing/testing_api_cmd_serialize_keys.c + * @brief Lets tests use the keys serialization API. + * @author Marcello Stanisci + */ +#include "platform.h" +#include <jansson.h> +#include "taler_testing_lib.h" + + +/** + * Internal state for a serialize-keys CMD. + */ +struct SerializeKeysState +{ + /** + * Serialized keys. + */ + json_t *keys; + + /** + * Exchange URL. Needed because the exchange gets disconnected + * from, after keys serialization. This value is then needed by + * subsequent commands that have to reconnect to the exchagne. + */ + char *exchange_url; +}; + + +/** + * Internal state for a connect-with-state CMD. + */ +struct ConnectWithStateState +{ + + /** + * Reference to a CMD that offers a serialized key-state + * that will be used in the reconnection. + */ + const char *state_reference; + + /** + * If set to GNUNET_YES, then the /keys callback has already + * been passed the control to the next CMD. This is necessary + * because it is not uncommon that the /keys callback gets + * invoked multiple times, and without this flag, we would keep + * going "next" CMD upon every invocation (causing impredictable + * behaviour as for the instruction pointer.) + */ + unsigned int consumed; + + /** + * Interpreter state. + */ + struct TALER_TESTING_Interpreter *is; +}; + + +/** + * Run the command. + * + * @param cls closure. + * @param cmd the command to execute. + * @param is the interpreter state. + */ +static void +serialize_keys_run (void *cls, + const struct TALER_TESTING_Command *cmd, + struct TALER_TESTING_Interpreter *is) +{ + struct SerializeKeysState *sks = cls; + + sks->keys = TALER_EXCHANGE_serialize_data (is->exchange); + if (NULL == sks->keys) + TALER_TESTING_interpreter_fail (is); + + sks->exchange_url = GNUNET_strdup + (TALER_EXCHANGE_get_base_url (is->exchange)); + TALER_EXCHANGE_disconnect (is->exchange); + is->exchange = NULL; + is->working = GNUNET_NO; + TALER_TESTING_interpreter_next (is); +} + + +/** + * Cleanup the state of a "serialize keys" CMD. + * + * @param cls closure. + * @param cmd the command which is being cleaned up. + */ +static void +serialize_keys_cleanup (void *cls, + const struct TALER_TESTING_Command *cmd) +{ + struct SerializeKeysState *sks = cls; + + if (NULL != sks->keys) + { + json_decref (sks->keys); + } + GNUNET_free_non_null (sks->exchange_url); + GNUNET_free (sks); +} + + +/** + * Offer serialized keys as trait. + * + * @param cls closure. + * @param[out] ret result. + * @param trait name of the trait. + * @param index index number of the object to offer. + * @return #GNUNET_OK on success. + */ +static int +serialize_keys_traits (void *cls, + const void **ret, + const char *trait, + unsigned int index) +{ + struct SerializeKeysState *sks = cls; + struct TALER_TESTING_Trait traits[] = { + TALER_TESTING_make_trait_exchange_keys (0, sks->keys), + TALER_TESTING_make_trait_url (TALER_TESTING_UT_EXCHANGE_BASE_URL, + sks->exchange_url), + TALER_TESTING_trait_end () + }; + + return TALER_TESTING_get_trait (traits, + ret, + trait, + index); +} + + +/** + * Run the command. + * + * @param cls closure. + * @param cmd the command to execute. + * @param is the interpreter state. + */ +static void +connect_with_state_run (void *cls, + const struct TALER_TESTING_Command *cmd, + struct TALER_TESTING_Interpreter *is) +{ + struct ConnectWithStateState *cwss = cls; + const struct TALER_TESTING_Command *state_cmd; + const json_t *serialized_keys; + const char *exchange_url; + + /* This command usually gets rescheduled after serialized + * reconnection. */ + if (GNUNET_YES == cwss->consumed) + { + TALER_TESTING_interpreter_next (is); + return; + } + + cwss->is = is; + state_cmd = TALER_TESTING_interpreter_lookup_command + (is, cwss->state_reference); + + /* Command providing serialized keys not found. */ + if (NULL == state_cmd) + { + GNUNET_break (0); + TALER_TESTING_interpreter_fail (is); + return; + } + + GNUNET_assert (GNUNET_OK == + TALER_TESTING_get_trait_exchange_keys (state_cmd, + 0, + &serialized_keys)); + { + char *dump; + + dump = json_dumps (serialized_keys, + JSON_INDENT (1)); + TALER_LOG_DEBUG ("Serialized key-state: %s\n", + dump); + free (dump); + } + + GNUNET_assert (GNUNET_OK == + TALER_TESTING_get_trait_url (state_cmd, + TALER_TESTING_UT_EXCHANGE_BASE_URL, + &exchange_url)); + is->exchange = TALER_EXCHANGE_connect (is->ctx, + exchange_url, + TALER_TESTING_cert_cb, + cwss, + TALER_EXCHANGE_OPTION_DATA, + serialized_keys, + TALER_EXCHANGE_OPTION_END); + cwss->consumed = GNUNET_YES; +} + + +/** + * Cleanup the state of a "connect with state" CMD. Just + * a placeholder to avoid jumping on an invalid address. + * + * @param cls closure. + * @param cmd the command which is being cleaned up. + */ +static void +connect_with_state_cleanup (void *cls, + const struct TALER_TESTING_Command *cmd) +{ + struct ConnectWithStateState *cwss = cls; + + GNUNET_free (cwss); +} + + +/** + * Make a serialize-keys CMD. It will ask for + * keys serialization __and__ disconnect from the + * exchange. + * + * @param label CMD label + * @return the CMD. + */ +struct TALER_TESTING_Command +TALER_TESTING_cmd_serialize_keys (const char *label) +{ + struct SerializeKeysState *sks; + + sks = GNUNET_new (struct SerializeKeysState); + { + struct TALER_TESTING_Command cmd = { + .cls = sks, + .label = label, + .run = serialize_keys_run, + .cleanup = serialize_keys_cleanup, + .traits = serialize_keys_traits + }; + + return cmd; + } +} + + +/** + * Make a connect-with-state CMD. This command + * will use a serialized key state to reconnect + * to the exchange. + * + * @param label command label + * @param state_reference label of a CMD offering + * a serialized key state. + * @return the CMD. + */ +struct TALER_TESTING_Command +TALER_TESTING_cmd_connect_with_state (const char *label, + const char *state_reference) +{ + struct ConnectWithStateState *cwss; + + cwss = GNUNET_new (struct ConnectWithStateState); + cwss->state_reference = state_reference; + cwss->consumed = GNUNET_NO; + { + struct TALER_TESTING_Command cmd = { + .cls = cwss, + .label = label, + .run = connect_with_state_run, + .cleanup = connect_with_state_cleanup + }; + + return cmd; + } +} |