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authorChristian Grothoff <christian@grothoff.org>2018-11-17 18:14:11 +0100
committerChristian Grothoff <christian@grothoff.org>2018-11-17 18:14:11 +0100
commit5f365133cd31a6c3ea13d40ba34fb11a7a530c4e (patch)
tree0759cb23adc47996909baf0e04f6879f205f4f9a
parente42f014cffae126a52c92fbf8151e6f5cecc9de0 (diff)
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add list exchanges command
-rw-r--r--src/auditor-lib/Makefile.am1
-rw-r--r--src/auditor-lib/testing_auditor_api_cmd_exchanges.c296
-rw-r--r--src/include/taler_testing_auditor_lib.h26
3 files changed, 323 insertions, 0 deletions
diff --git a/src/auditor-lib/Makefile.am b/src/auditor-lib/Makefile.am
index 44849da22..df0b8b3d5 100644
--- a/src/auditor-lib/Makefile.am
+++ b/src/auditor-lib/Makefile.am
@@ -42,6 +42,7 @@ libtalerauditortesting_la_LDFLAGS = \
libtalerauditortesting_la_SOURCES = \
testing_auditor_api_helpers.c \
testing_auditor_api_cmd_deposit_confirmation.c \
+ testing_auditor_api_cmd_exchanges.c \
testing_auditor_api_cmd_exec_auditor.c \
testing_auditor_api_cmd_exec_wire_auditor.c
libtalerauditortesting_la_LIBADD = \
diff --git a/src/auditor-lib/testing_auditor_api_cmd_exchanges.c b/src/auditor-lib/testing_auditor_api_cmd_exchanges.c
new file mode 100644
index 000000000..71b82a39a
--- /dev/null
+++ b/src/auditor-lib/testing_auditor_api_cmd_exchanges.c
@@ -0,0 +1,296 @@
+/*
+ This file is part of TALER
+ Copyright (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 auditor-lib/testing_auditor_api_cmd_exchanges.c
+ * @brief command for testing /exchanges.
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_json_lib.h"
+#include <gnunet/gnunet_curl_lib.h>
+#include "taler_auditor_service.h"
+#include "taler_testing_lib.h"
+#include "taler_signatures.h"
+#include "backoff.h"
+
+
+/**
+ * State for a "deposit confirmation" CMD.
+ */
+struct ExchangesState
+{
+
+ /**
+ * Exchanges handle while operation is running.
+ */
+ struct TALER_AUDITOR_ListExchangesHandle *leh;
+
+ /**
+ * Auditor connection.
+ */
+ struct TALER_AUDITOR_Handle *auditor;
+
+ /**
+ * Interpreter state.
+ */
+ struct TALER_TESTING_Interpreter *is;
+
+ /**
+ * Task scheduled to try later.
+ */
+ struct GNUNET_SCHEDULER_Task *retry_task;
+
+ /**
+ * How long do we wait until we retry?
+ */
+ struct GNUNET_TIME_Relative backoff;
+
+ /**
+ * Expected HTTP response code.
+ */
+ unsigned int expected_response_code;
+
+ /**
+ * Should we retry on (transient) failures?
+ */
+ int do_retry;
+
+};
+
+
+/**
+ * Run the command.
+ *
+ * @param cls closure.
+ * @param cmd the command to execute.
+ * @param is the interpreter state.
+ */
+static void
+exchanges_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is);
+
+
+/**
+ * Task scheduled to re-try #exchanges_run.
+ *
+ * @param cls a `struct ExchangesState`
+ */
+static void
+do_retry (void *cls)
+{
+ struct ExchangesState *es = cls;
+
+ es->retry_task = NULL;
+ exchanges_run (es,
+ NULL,
+ es->is);
+}
+
+
+/**
+ * Callback to analyze the /exchanges response.
+ *
+ * @param cls closure.
+ * @param http_status HTTP response code.
+ * @param ec taler-specific error code.
+ * @param obj raw response from the auditor.
+ */
+static void
+exchanges_cb (void *cls,
+ unsigned int http_status,
+ enum TALER_ErrorCode ec,
+ unsigned int num_exchanges,
+ const struct TALER_AUDITOR_ExchangeInfo *ei,
+ const json_t *raw_response)
+{
+ struct ExchangesState *es = cls;
+
+ es->leh = NULL;
+ if (es->expected_response_code != http_status)
+ {
+ if (GNUNET_YES == es->do_retry)
+ {
+ if ( (0 == http_status) ||
+ (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec) ||
+ (MHD_HTTP_INTERNAL_SERVER_ERROR == http_status) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Retrying list exchanges failed with %u/%d\n",
+ http_status,
+ (int) ec);
+ /* on DB conflicts, do not use backoff */
+ if (TALER_EC_DB_COMMIT_FAILED_ON_RETRY == ec)
+ es->backoff = GNUNET_TIME_UNIT_ZERO;
+ else
+ es->backoff = AUDITOR_LIB_BACKOFF (es->backoff);
+ es->retry_task = GNUNET_SCHEDULER_add_delayed (es->backoff,
+ &do_retry,
+ es);
+ return;
+ }
+ }
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Unexpected response code %u to command %s in %s:%u\n",
+ http_status,
+ es->is->commands[es->is->ip].label,
+ __FILE__,
+ __LINE__);
+ json_dumpf (raw_response, stderr, 0);
+ TALER_TESTING_interpreter_fail (es->is);
+ return;
+ }
+ TALER_TESTING_interpreter_next (es->is);
+}
+
+
+/**
+ * Run the command.
+ *
+ * @param cls closure.
+ * @param cmd the command to execute.
+ * @param is the interpreter state.
+ */
+static void
+exchanges_run (void *cls,
+ const struct TALER_TESTING_Command *cmd,
+ struct TALER_TESTING_Interpreter *is)
+{
+ struct ExchangesState *es = cls;
+
+ es->is = is;
+ es->leh = TALER_AUDITOR_list_exchanges
+ (es->auditor,
+ &exchanges_cb,
+ es);
+
+ if (NULL == es->leh)
+ {
+ GNUNET_break (0);
+ TALER_TESTING_interpreter_fail (is);
+ return;
+ }
+ return;
+}
+
+
+/**
+ * Free the state of a "exchanges" CMD, and possibly cancel a
+ * pending operation thereof.
+ *
+ * @param cls closure, a `struct ExchangesState`
+ * @param cmd the command which is being cleaned up.
+ */
+static void
+exchanges_cleanup (void *cls,
+ const struct TALER_TESTING_Command *cmd)
+{
+ struct ExchangesState *es = cls;
+
+ if (NULL != es->leh)
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Command %u (%s) did not complete\n",
+ es->is->ip,
+ cmd->label);
+ TALER_AUDITOR_list_exchanges_cancel (es->leh);
+ es->leh = NULL;
+ }
+ if (NULL != es->retry_task)
+ {
+ GNUNET_SCHEDULER_cancel (es->retry_task);
+ es->retry_task = NULL;
+ }
+ GNUNET_free (es);
+}
+
+
+/**
+ * Offer internal data to other commands.
+ *
+ * @param cls closure.
+ * @param ret[out] set to the wanted data.
+ * @param trait name of the trait.
+ * @param index index number of the traits to be returned.
+ *
+ * @return #GNUNET_OK on success
+ */
+static int
+exchanges_traits (void *cls,
+ const void **ret,
+ const char *trait,
+ unsigned int index)
+{
+ /* Must define this function because some callbacks
+ * look for certain traits on _all_ the commands. */
+ return GNUNET_SYSERR;
+}
+
+
+/**
+ * Create a "list exchanges" command.
+ *
+ * @param label command label.
+ * @param auditor auditor connection.
+ * @param expected_response_code expected HTTP response code.
+ * @return the command.
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_exchanges
+ (const char *label,
+ struct TALER_AUDITOR_Handle *auditor,
+ unsigned int expected_response_code)
+{
+ struct TALER_TESTING_Command cmd = {0}; /* need explicit zeroing..*/
+ struct ExchangesState *es;
+
+ es = GNUNET_new (struct ExchangesState);
+ es->auditor = auditor;
+ es->expected_response_code = expected_response_code;
+
+ cmd.cls = es;
+ cmd.label = label;
+ cmd.run = &exchanges_run;
+ cmd.cleanup = &exchanges_cleanup;
+ cmd.traits = &exchanges_traits;
+
+ return cmd;
+}
+
+
+/**
+ * Modify an exchanges command to enable retries when we get
+ * transient errors from the auditor.
+ *
+ * @param cmd a deposit confirmation command
+ * @return the command with retries enabled
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_exchanges_with_retry (struct TALER_TESTING_Command cmd)
+{
+ struct ExchangesState *es;
+
+ GNUNET_assert (&exchanges_run == cmd.run);
+ es = cmd.cls;
+ es->do_retry = GNUNET_YES;
+ return cmd;
+}
+
+
+/* end of testing_auditor_api_cmd_exchanges.c */
diff --git a/src/include/taler_testing_auditor_lib.h b/src/include/taler_testing_auditor_lib.h
index 2d7e8e14b..fc8af678f 100644
--- a/src/include/taler_testing_auditor_lib.h
+++ b/src/include/taler_testing_auditor_lib.h
@@ -94,6 +94,32 @@ struct TALER_TESTING_Command
TALER_TESTING_cmd_deposit_confirmation_with_retry (struct TALER_TESTING_Command cmd);
+/**
+ * Create a "list exchanges" command.
+ *
+ * @param label command label.
+ * @param auditor auditor connection.
+ * @param expected_response_code expected HTTP response code.
+ * @return the command.
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_exchanges
+ (const char *label,
+ struct TALER_AUDITOR_Handle *auditor,
+ unsigned int expected_response_code);
+
+
+/**
+ * Modify an exchanges command to enable retries when we get
+ * transient errors from the auditor.
+ *
+ * @param cmd a deposit confirmation command
+ * @return the command with retries enabled
+ */
+struct TALER_TESTING_Command
+TALER_TESTING_cmd_exchanges_with_retry (struct TALER_TESTING_Command cmd);
+
+
/* ********************* Helper functions ********************* */