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authorChristian Grothoff <christian@grothoff.org>2019-01-11 21:27:34 +0100
committerChristian Grothoff <christian@grothoff.org>2019-01-11 21:43:15 +0100
commit54fc83ee6b910d482948c6ec8185df7aab1b0cb1 (patch)
tree10c04cad1392659a9ccef469271f866e393ebb48 /src/lib/testing_api_cmd_serialize_keys.c
parent57ab9f9fdba607fcc3817adf58f37c5390f8d220 (diff)
downloadexchange-54fc83ee6b910d482948c6ec8185df7aab1b0cb1.tar.gz
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fix cyclic dependency by combining exchange-lib and auditor-lib directories
Diffstat (limited to 'src/lib/testing_api_cmd_serialize_keys.c')
-rw-r--r--src/lib/testing_api_cmd_serialize_keys.c315
1 files changed, 315 insertions, 0 deletions
diff --git a/src/lib/testing_api_cmd_serialize_keys.c b/src/lib/testing_api_cmd_serialize_keys.c
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+++ b/src/lib/testing_api_cmd_serialize_keys.c
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+/*
+ 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 exchange-lib/testing_api_cmd_serialize_keys.c
+ * @brief Lets tests use the keys serialization API.
+ * @author Marcello Stanisci
+ */
+
+#include "platform.h"
+#include <jansson.h>
+#include "exchange_api_handle.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.
+ */
+ const 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;
+ 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.
+ */
+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 ((char *) sks->exchange_url);
+ GNUNET_free (sks);
+}
+
+
+/**
+ * Offer serialized keys as trait.
+ *
+ * @param cls closure.
+ * @param ret[out] 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 (0, sks->exchange_url),
+ TALER_TESTING_trait_end ()
+ };
+
+ return TALER_TESTING_get_trait (traits,
+ ret,
+ trait,
+ index);
+}
+
+/**
+ * /keys callback. Just checks HTTP status is OK,
+ * and step forward to next command.
+ *
+ * @param cls closure
+ * @param keys information about the various keys used
+ * by the exchange, NULL if /keys failed
+ * @param compat protocol compatibility information*
+ */
+static void
+cb (void *cls,
+ const struct TALER_EXCHANGE_Keys *keys,
+ enum TALER_EXCHANGE_VersionCompatibility compat)
+{
+ struct ConnectWithStateState *cwss = cls;
+
+ if (GNUNET_YES == cwss->consumed)
+ {
+ TALER_LOG_DEBUG ("Reconnection /keys 'cb' invoked already,"
+ " nothing to do\n");
+ return;
+ }
+
+ cwss->consumed = GNUNET_YES;
+ if (NULL == keys)
+ TALER_TESTING_interpreter_fail (cwss->is);
+
+ TALER_LOG_DEBUG ("reconnect next CMD\n");
+ TALER_TESTING_interpreter_next (cwss->is);
+}
+
+/**
+ * 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;
+
+ 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));
+
+ TALER_LOG_DEBUG ("Serialized key-state: %s\n",
+ json_dumps (serialized_keys,
+ JSON_INDENT (1)));
+
+ GNUNET_assert
+ (GNUNET_OK == TALER_TESTING_get_trait_url
+ (state_cmd,
+ 0,
+ &exchange_url));
+
+ is->exchange = TALER_EXCHANGE_connect
+ (is->ctx,
+ exchange_url,
+ cb,
+ cwss,
+ TALER_EXCHANGE_OPTION_DATA,
+ serialized_keys,
+ TALER_EXCHANGE_OPTION_END);
+}
+
+
+/**
+ * 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.
+ */
+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;
+}