359 lines
11 KiB
C
359 lines
11 KiB
C
/*
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This file is part of TALER
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(C) 2018 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 3, or
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(at your option) any later version.
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TALER is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public
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License along with TALER; see the file COPYING. If not, see
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<http://www.gnu.org/licenses/>
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*/
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/**
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* @file testing/testing_api_cmd_check_keys.c
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* @brief Implementation of "check keys" test command. XXX-NOTE:
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* the number of 'expected keys' is NOT the number of the
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* downloaded keys, but rather the number of keys that the
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* libtalerutil library keeps locally. As for the current
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* design, keys are _never_ discarded by the library,
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* therefore their (expected) number is monotonically
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* ascending.
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*
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* @author Marcello Stanisci
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*/
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#include "platform.h"
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#include "taler_json_lib.h"
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#include <gnunet/gnunet_curl_lib.h>
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#include "taler_testing_lib.h"
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/**
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* State for a "check keys" CMD.
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*/
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struct CheckKeysState
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{
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/**
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* This number will instruct the CMD interpreter to
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* make sure that /keys was downloaded `generation` times
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* _before_ running the very CMD logic.
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*/
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unsigned int generation;
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/**
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* How many denomination keys the exchange is
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* supposed to have.
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*/
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unsigned int num_denom_keys;
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/**
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* If this value is GNUNET_YES, then the "cherry
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* picking" facility is turned off; whole /keys is
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* downloaded.
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*/
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unsigned int pull_all_keys;
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/**
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* If GNUNET_YES, then the user must specify the
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* last_denom_issue_date manually. This way, it is possible
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* to force whatever X value here (including 0): /keys?last_denom_issue=X.
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*/
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unsigned int set_last_denom;
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/**
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* Value X to set as the URL parameter:
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* "/keys?last_denom_issue=X" is used only when `set_last_denom'
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* equals GNUNET_YES.
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*/
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struct GNUNET_TIME_Absolute last_denom_date;
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/**
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* If GNUNET_YES, then we'll provide the "/keys" request.
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* with the "now" argument.
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*/
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int with_now;
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/**
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* Fake now as passed by the user.
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*/
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struct GNUNET_TIME_Absolute now;
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};
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/**
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* Run the "check keys" command.
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*
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* @param cls closure.
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* @param cmd the command currently being executed.
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* @param is the interpreter state.
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*/
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static void
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check_keys_run (void *cls,
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const struct TALER_TESTING_Command *cmd,
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struct TALER_TESTING_Interpreter *is)
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{
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struct CheckKeysState *cks = cls;
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GNUNET_log (GNUNET_ERROR_TYPE_INFO,
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"cmd `%s' (ip: %u), key generation: %d\n",
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cmd->label,
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is->ip,
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is->key_generation);
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if (is->key_generation < cks->generation)
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{
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is->working = GNUNET_NO;
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GNUNET_log (GNUNET_ERROR_TYPE_INFO,
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"Triggering GET /keys, cmd `%s'\n",
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cmd->label);
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if (GNUNET_YES == cks->set_last_denom)
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{
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TALER_LOG_DEBUG ("Forcing last_denom_date URL argument\n");
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TALER_EXCHANGE_set_last_denom (is->exchange,
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cks->last_denom_date);
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}
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if (GNUNET_YES == cks->with_now)
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TALER_EXCHANGE_set_now (is->exchange,
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cks->now);
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/* Redownload /keys. */
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GNUNET_break
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(0 == TALER_EXCHANGE_check_keys_current
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(is->exchange,
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GNUNET_YES,
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cks->pull_all_keys).abs_value_us);
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return;
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}
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#if 0
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/**
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* Not sure this check makes sense: GET /keys is performed on
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* a "maybe" basis, so it can get quite hard to track /keys
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* request. Rather, this CMD should just check if /keys was
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* requested AT LEAST n times before going ahead with checks.
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*///
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if (is->key_generation > cks->generation)
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{
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/* We got /keys too often, strange. Fatal. May theoretically
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happen if somehow we were really unlucky and /keys expired
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"naturally", but obviously with a sane configuration this
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should also not be. */
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GNUNET_break (0);
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TALER_LOG_ERROR ("Acutal- vs expected key"
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" generation: %u vs %u\n",
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is->key_generation,
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cks->generation);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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#endif
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/* "/keys" was updated, let's check they were OK! */
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if (cks->num_denom_keys != is->keys->num_denom_keys)
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{
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/* Did not get the expected number of denomination keys! */
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GNUNET_break (0);
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GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
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"Got %u keys in step %s, expected %u\n",
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is->keys->num_denom_keys,
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cmd->label,
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cks->num_denom_keys);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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/* Let's unset the fake now before moving on. */
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TALER_EXCHANGE_unset_now (is->exchange);
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TALER_TESTING_interpreter_next (is);
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}
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/**
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* Cleanup the state.
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*
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* @param cls closure.
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* @param cmd the command which is being cleaned up.
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*/
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static void
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check_keys_cleanup (void *cls,
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const struct TALER_TESTING_Command *cmd)
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{
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struct CheckKeysState *cks = cls;
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GNUNET_free (cks);
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}
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/**
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* Make a "check keys" command. This type of command
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* checks whether the number of denomination keys from
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* @a exchange matches @a num_denom_keys. Additionally,
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* it lets the user set a last denom issue date to be
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* used in the request for /keys.
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*
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* @param label command label
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* @param generation when this command is run, exactly @a
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* generation /keys downloads took place. If the number
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* of downloads is less than @a generation, the logic will
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* first make sure that @a generation downloads are done,
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* and _then_ execute the rest of the command.
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* @param num_denom_keys expected number of denomination keys.
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* @param last_denom_date date to be set in the "last_denom_issue"
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* URL parameter of /keys.
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* @return the command.
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*/
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struct TALER_TESTING_Command
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TALER_TESTING_cmd_check_keys_with_last_denom (const char *label,
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unsigned int generation,
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unsigned int num_denom_keys,
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struct GNUNET_TIME_Absolute
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last_denom_date)
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{
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struct CheckKeysState *cks;
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cks = GNUNET_new (struct CheckKeysState);
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cks->generation = generation;
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cks->num_denom_keys = num_denom_keys;
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cks->set_last_denom = GNUNET_YES;
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cks->last_denom_date = last_denom_date;
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{
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struct TALER_TESTING_Command cmd = {
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.cls = cks,
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.label = label,
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.run = &check_keys_run,
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.cleanup = &check_keys_cleanup
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};
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return cmd;
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}
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}
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/**
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* Make a "check keys" command. This type of command
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* checks whether the number of denomination keys from
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* @a exchange matches @a num_denom_keys.
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*
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* @param label command label
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* @param generation when this command is run, exactly @a
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* generation /keys downloads took place. If the number
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* of downloads is less than @a generation, the logic will
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* first make sure that @a generation downloads are done,
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* and _then_ execute the rest of the command.
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* @param num_denom_keys expected number of denomination keys.
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* @return the command.
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*/
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struct TALER_TESTING_Command
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TALER_TESTING_cmd_check_keys (const char *label,
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unsigned int generation,
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unsigned int num_denom_keys)
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{
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struct CheckKeysState *cks;
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cks = GNUNET_new (struct CheckKeysState);
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cks->generation = generation;
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cks->num_denom_keys = num_denom_keys;
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{
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struct TALER_TESTING_Command cmd = {
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.cls = cks,
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.label = label,
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.run = &check_keys_run,
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.cleanup = &check_keys_cleanup
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};
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return cmd;
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}
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}
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/**
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* Make a "check keys" command. This type of command
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* checks whether the number of denomination keys from
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* @a exchange matches @a num_denom_keys.
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*
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* @param label command label
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* @param generation when this command is run, exactly @a
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* generation /keys downloads took place. If the number
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* of downloads is less than @a generation, the logic will
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* first make sure that @a generation downloads are done,
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* and _then_ execute the rest of the command.
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* @param num_denom_keys expected number of denomination keys.
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* @param now timestamp to use when fetching keys
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* @return the command.
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*/
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struct TALER_TESTING_Command
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TALER_TESTING_cmd_check_keys_with_now (const char *label,
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unsigned int generation,
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unsigned int num_denom_keys,
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struct GNUNET_TIME_Absolute now)
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{
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struct CheckKeysState *cks;
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cks = GNUNET_new (struct CheckKeysState);
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cks->generation = generation;
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cks->num_denom_keys = num_denom_keys;
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cks->now = now;
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cks->with_now = GNUNET_YES;
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/* Force to NOT cherry pick, otherwise they conflict. */
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cks->pull_all_keys = GNUNET_YES;
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{
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struct TALER_TESTING_Command cmd = {
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.cls = cks,
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.label = label,
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.run = &check_keys_run,
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.cleanup = &check_keys_cleanup
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};
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return cmd;
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}
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}
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/**
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* Make a "check keys" command that forcedly does NOT cherry pick;
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* just redownload the whole /keys. Then checks whether the number
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* of denomination keys from @a exchange matches @a num_denom_keys.
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*
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* @param label command label
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* @param generation when this command is run, exactly @a
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* generation /keys downloads took place. If the number
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* of downloads is less than @a generation, the logic will
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* first make sure that @a generation downloads are done,
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* and _then_ execute the rest of the command.
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* @param num_denom_keys expected number of denomination keys.
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* @return the command.
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*/
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struct TALER_TESTING_Command
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TALER_TESTING_cmd_check_keys_pull_all_keys (const char *label,
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unsigned int generation,
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unsigned int num_denom_keys)
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{
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struct CheckKeysState *cks;
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cks = GNUNET_new (struct CheckKeysState);
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cks->generation = generation;
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cks->num_denom_keys = num_denom_keys;
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cks->pull_all_keys = GNUNET_YES;
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{
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struct TALER_TESTING_Command cmd = {
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.cls = cks,
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.label = label,
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.run = &check_keys_run,
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.cleanup = &check_keys_cleanup
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};
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return cmd;
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}
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}
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/* end of testing_api_cmd_check_keys.c */
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