773 lines
24 KiB
C
773 lines
24 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2018-2021 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your
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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 GNU
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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_deposit.c
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* @brief command for testing /deposit.
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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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#include "taler_signatures.h"
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#include "backoff.h"
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/**
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* How often do we retry before giving up?
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*/
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#define NUM_RETRIES 5
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/**
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* How long do we wait AT MOST when retrying?
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*/
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#define MAX_BACKOFF GNUNET_TIME_relative_multiply ( \
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GNUNET_TIME_UNIT_MILLISECONDS, 100)
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/**
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* State for a "deposit" CMD.
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*/
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struct DepositState
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{
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/**
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* Amount to deposit.
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*/
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struct TALER_Amount amount;
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/**
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* Deposit fee.
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*/
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struct TALER_Amount deposit_fee;
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/**
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* Reference to any command that is able to provide a coin.
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*/
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const char *coin_reference;
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/**
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* If @e coin_reference refers to an operation that generated
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* an array of coins, this value determines which coin to pick.
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*/
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unsigned int coin_index;
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/**
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* Wire details of who is depositing -- this would be merchant
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* wire details in a normal scenario.
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*/
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json_t *wire_details;
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/**
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* JSON string describing what a proposal is about.
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*/
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json_t *contract_terms;
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/**
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* Refund deadline. Zero for no refunds.
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*/
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struct GNUNET_TIME_Absolute refund_deadline;
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/**
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* Set (by the interpreter) to a fresh private key. This
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* key will be used to sign the deposit request.
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*/
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struct TALER_MerchantPrivateKeyP merchant_priv;
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/**
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* Deposit handle while operation is running.
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*/
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struct TALER_EXCHANGE_DepositHandle *dh;
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/**
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* Timestamp of the /deposit operation in the wallet (contract signing time).
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*/
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struct GNUNET_TIME_Absolute wallet_timestamp;
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/**
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* Interpreter state.
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*/
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struct TALER_TESTING_Interpreter *is;
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/**
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* Task scheduled to try later.
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*/
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struct GNUNET_SCHEDULER_Task *retry_task;
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/**
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* How long do we wait until we retry?
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*/
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struct GNUNET_TIME_Relative backoff;
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/**
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* Expected HTTP response code.
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*/
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unsigned int expected_response_code;
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/**
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* How often should we retry on (transient) failures?
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*/
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unsigned int do_retry;
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/**
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* Set to #GNUNET_YES if the /deposit succeeded
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* and we now can provide the resulting traits.
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*/
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int deposit_succeeded;
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/**
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* When did the exchange receive the deposit?
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*/
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struct GNUNET_TIME_Absolute exchange_timestamp;
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/**
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* Signing key used by the exchange to sign the
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* deposit confirmation.
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*/
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struct TALER_ExchangePublicKeyP exchange_pub;
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/**
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* Signature from the exchange on the
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* deposit confirmation.
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*/
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struct TALER_ExchangeSignatureP exchange_sig;
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/**
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* Reference to previous deposit operation.
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* Only present if we're supposed to replay the previous deposit.
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*/
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const char *deposit_reference;
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/**
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* Did we set the parameters for this deposit command?
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*
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* When we're referencing another deposit operation,
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* this will only be set after the command has been started.
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*/
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int command_initialized;
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/**
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* Reference to fetch the merchant private key from.
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* If NULL, we generate our own, fresh merchant key.
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*/
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const char *merchant_priv_reference;
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};
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/**
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* Run the command.
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*
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* @param cls closure.
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* @param cmd the command to execute.
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* @param is the interpreter state.
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*/
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static void
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deposit_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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* Task scheduled to re-try #deposit_run.
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*
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* @param cls a `struct DepositState`
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*/
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static void
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do_retry (void *cls)
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{
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struct DepositState *ds = cls;
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ds->retry_task = NULL;
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ds->is->commands[ds->is->ip].last_req_time
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= GNUNET_TIME_absolute_get ();
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deposit_run (ds,
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NULL,
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ds->is);
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}
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/**
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* Callback to analyze the /deposit response, just used to
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* check if the response code is acceptable.
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*
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* @param cls closure.
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* @param dr deposit response details
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*/
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static void
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deposit_cb (void *cls,
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const struct TALER_EXCHANGE_DepositResult *dr)
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{
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struct DepositState *ds = cls;
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ds->dh = NULL;
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if (ds->expected_response_code != dr->hr.http_status)
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{
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if (0 != ds->do_retry)
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{
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ds->do_retry--;
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if ( (0 == dr->hr.http_status) ||
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(TALER_EC_GENERIC_DB_SOFT_FAILURE == dr->hr.ec) ||
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(MHD_HTTP_INTERNAL_SERVER_ERROR == dr->hr.http_status) )
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{
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GNUNET_log (GNUNET_ERROR_TYPE_INFO,
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"Retrying deposit failed with %u/%d\n",
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dr->hr.http_status,
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(int) dr->hr.ec);
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/* on DB conflicts, do not use backoff */
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if (TALER_EC_GENERIC_DB_SOFT_FAILURE == dr->hr.ec)
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ds->backoff = GNUNET_TIME_UNIT_ZERO;
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else
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ds->backoff = GNUNET_TIME_randomized_backoff (ds->backoff,
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MAX_BACKOFF);
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ds->is->commands[ds->is->ip].num_tries++;
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ds->retry_task
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= GNUNET_SCHEDULER_add_delayed (ds->backoff,
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&do_retry,
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ds);
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return;
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}
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}
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GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
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"Unexpected response code %u to command %s in %s:%u\n",
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dr->hr.http_status,
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ds->is->commands[ds->is->ip].label,
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__FILE__,
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__LINE__);
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json_dumpf (dr->hr.reply,
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stderr,
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0);
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TALER_TESTING_interpreter_fail (ds->is);
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return;
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}
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if (MHD_HTTP_OK == dr->hr.http_status)
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{
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ds->deposit_succeeded = GNUNET_YES;
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ds->exchange_timestamp = dr->details.success.deposit_timestamp;
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ds->exchange_pub = *dr->details.success.exchange_pub;
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ds->exchange_sig = *dr->details.success.exchange_sig;
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}
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TALER_TESTING_interpreter_next (ds->is);
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}
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/**
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* Run the command.
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*
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* @param cls closure.
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* @param cmd the command to execute.
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* @param is the interpreter state.
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*/
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static void
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deposit_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 DepositState *ds = cls;
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const struct TALER_TESTING_Command *coin_cmd;
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const struct TALER_CoinSpendPrivateKeyP *coin_priv;
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struct TALER_CoinSpendPublicKeyP coin_pub;
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const struct TALER_EXCHANGE_DenomPublicKey *denom_pub;
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const struct TALER_DenominationSignature *denom_pub_sig;
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struct TALER_CoinSpendSignatureP coin_sig;
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struct GNUNET_TIME_Absolute wire_deadline;
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struct TALER_MerchantPublicKeyP merchant_pub;
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struct TALER_PrivateContractHash h_contract_terms;
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enum TALER_ErrorCode ec;
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(void) cmd;
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ds->is = is;
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if (NULL != ds->deposit_reference)
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{
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/* We're copying another deposit operation, initialize here. */
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const struct TALER_TESTING_Command *cmd;
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struct DepositState *ods;
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cmd = TALER_TESTING_interpreter_lookup_command (is,
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ds->deposit_reference);
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if (NULL == cmd)
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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ods = cmd->cls;
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ds->coin_reference = ods->coin_reference;
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ds->coin_index = ods->coin_index;
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ds->wire_details = json_incref (ods->wire_details);
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ds->contract_terms = json_incref (ods->contract_terms);
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ds->wallet_timestamp = ods->wallet_timestamp;
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ds->refund_deadline = ods->refund_deadline;
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ds->amount = ods->amount;
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ds->merchant_priv = ods->merchant_priv;
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ds->command_initialized = GNUNET_YES;
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}
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else if (NULL != ds->merchant_priv_reference)
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{
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/* We're copying the merchant key from another deposit operation */
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const struct TALER_MerchantPrivateKeyP *merchant_priv;
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const struct TALER_TESTING_Command *cmd;
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cmd = TALER_TESTING_interpreter_lookup_command (is,
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ds->merchant_priv_reference);
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if (NULL == cmd)
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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if ( (GNUNET_OK !=
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TALER_TESTING_get_trait_merchant_priv (cmd,
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&merchant_priv)) )
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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ds->merchant_priv = *merchant_priv;
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}
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GNUNET_assert (ds->coin_reference);
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coin_cmd = TALER_TESTING_interpreter_lookup_command (is,
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ds->coin_reference);
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if (NULL == coin_cmd)
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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if ( (GNUNET_OK !=
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TALER_TESTING_get_trait_coin_priv (coin_cmd,
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ds->coin_index,
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&coin_priv)) ||
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(GNUNET_OK !=
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TALER_TESTING_get_trait_denom_pub (coin_cmd,
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ds->coin_index,
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&denom_pub)) ||
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(GNUNET_OK !=
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TALER_TESTING_get_trait_denom_sig (coin_cmd,
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ds->coin_index,
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&denom_pub_sig)) ||
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(GNUNET_OK !=
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TALER_JSON_contract_hash (ds->contract_terms,
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&h_contract_terms)) )
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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ds->deposit_fee = denom_pub->fee_deposit;
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GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
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&coin_pub.eddsa_pub);
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if (0 != ds->refund_deadline.abs_value_us)
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{
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struct GNUNET_TIME_Relative refund_deadline;
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refund_deadline = GNUNET_TIME_absolute_get_remaining (ds->refund_deadline);
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wire_deadline = GNUNET_TIME_relative_to_absolute
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(GNUNET_TIME_relative_multiply (refund_deadline, 2));
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}
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else
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{
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ds->refund_deadline = ds->wallet_timestamp;
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wire_deadline = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_ZERO);
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}
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GNUNET_CRYPTO_eddsa_key_get_public (&ds->merchant_priv.eddsa_priv,
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&merchant_pub.eddsa_pub);
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(void) GNUNET_TIME_round_abs (&wire_deadline);
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{
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struct TALER_MerchantWireHash h_wire;
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GNUNET_assert (GNUNET_OK ==
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TALER_JSON_merchant_wire_signature_hash (ds->wire_details,
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&h_wire));
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TALER_EXCHANGE_deposit_permission_sign (&ds->amount,
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&denom_pub->fee_deposit,
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&h_wire,
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&h_contract_terms,
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NULL, /* FIXME: extension hash! */
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&denom_pub->h_key,
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coin_priv,
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ds->wallet_timestamp,
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&merchant_pub,
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ds->refund_deadline,
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&coin_sig);
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}
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ds->dh = TALER_EXCHANGE_deposit (is->exchange,
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&ds->amount,
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wire_deadline,
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ds->wire_details,
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&h_contract_terms,
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NULL, /* FIXME: extension object */
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&coin_pub,
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denom_pub_sig,
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&denom_pub->key,
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ds->wallet_timestamp,
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&merchant_pub,
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ds->refund_deadline,
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&coin_sig,
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&deposit_cb,
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ds,
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&ec);
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if (NULL == ds->dh)
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{
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GNUNET_break (0);
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GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
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"Could not create deposit with EC %d\n",
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(int) ec);
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TALER_TESTING_interpreter_fail (is);
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return;
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}
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}
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/**
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* Free the state of a "deposit" CMD, and possibly cancel a
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* pending operation thereof.
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*
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* @param cls closure, must be a `struct DepositState`.
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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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deposit_cleanup (void *cls,
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const struct TALER_TESTING_Command *cmd)
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{
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struct DepositState *ds = cls;
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if (NULL != ds->dh)
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{
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GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
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"Command %u (%s) did not complete\n",
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ds->is->ip,
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cmd->label);
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TALER_EXCHANGE_deposit_cancel (ds->dh);
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ds->dh = NULL;
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}
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if (NULL != ds->retry_task)
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{
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GNUNET_SCHEDULER_cancel (ds->retry_task);
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ds->retry_task = NULL;
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}
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json_decref (ds->wire_details);
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json_decref (ds->contract_terms);
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GNUNET_free (ds);
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}
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/**
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* Offer internal data from a "deposit" CMD, to other commands.
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*
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* @param cls closure.
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* @param[out] ret result.
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* @param trait name of the trait.
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* @param index index number of the object to offer.
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* @return #GNUNET_OK on success.
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*/
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static enum GNUNET_GenericReturnValue
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deposit_traits (void *cls,
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const void **ret,
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const char *trait,
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unsigned int index)
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{
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struct DepositState *ds = cls;
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const struct TALER_TESTING_Command *coin_cmd;
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/* Will point to coin cmd internals. */
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const struct TALER_CoinSpendPrivateKeyP *coin_spent_priv;
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if (GNUNET_YES != ds->command_initialized)
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{
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/* No access to traits yet. */
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GNUNET_break (0);
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return GNUNET_NO;
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}
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coin_cmd
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= TALER_TESTING_interpreter_lookup_command (ds->is,
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ds->coin_reference);
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if (NULL == coin_cmd)
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (ds->is);
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return GNUNET_NO;
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}
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if (GNUNET_OK !=
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TALER_TESTING_get_trait_coin_priv (coin_cmd,
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ds->coin_index,
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&coin_spent_priv))
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{
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GNUNET_break (0);
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TALER_TESTING_interpreter_fail (ds->is);
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return GNUNET_NO;
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}
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{
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struct TALER_TESTING_Trait traits[] = {
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/* First two traits are only available if
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ds->traits is #GNUNET_YES */
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TALER_TESTING_make_trait_exchange_pub (0, &ds->exchange_pub),
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TALER_TESTING_make_trait_exchange_sig (0, &ds->exchange_sig),
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/* These traits are always available */
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TALER_TESTING_make_trait_coin_priv (0,
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coin_spent_priv),
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TALER_TESTING_make_trait_wire_details (ds->wire_details),
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TALER_TESTING_make_trait_contract_terms (ds->contract_terms),
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TALER_TESTING_make_trait_merchant_priv (&ds->merchant_priv),
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TALER_TESTING_make_trait_deposit_amount (&ds->amount),
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TALER_TESTING_make_trait_deposit_fee_amount (&ds->deposit_fee),
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TALER_TESTING_make_trait_absolute_time (0,
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|
&ds->exchange_timestamp),
|
|
TALER_TESTING_trait_end ()
|
|
};
|
|
|
|
return TALER_TESTING_get_trait ((ds->deposit_succeeded)
|
|
? traits
|
|
: &traits[2],
|
|
ret,
|
|
trait,
|
|
index);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Create a "deposit" command.
|
|
*
|
|
* @param label command label.
|
|
* @param coin_reference reference to any operation that can
|
|
* provide a coin.
|
|
* @param coin_index if @a withdraw_reference offers an array of
|
|
* coins, this parameter selects which one in that array.
|
|
* This value is currently ignored, as only one-coin
|
|
* withdrawals are implemented.
|
|
* @param target_account_payto target account for the "deposit"
|
|
* request.
|
|
* @param contract_terms contract terms to be signed over by the
|
|
* coin.
|
|
* @param refund_deadline refund deadline, zero means 'no refunds'.
|
|
* Note, if time were absolute, then it would have come
|
|
* one day and disrupt tests meaning.
|
|
* @param amount how much is going to be deposited.
|
|
* @param expected_response_code expected HTTP response code.
|
|
*
|
|
* @return the command.
|
|
*/
|
|
struct TALER_TESTING_Command
|
|
TALER_TESTING_cmd_deposit (const char *label,
|
|
const char *coin_reference,
|
|
unsigned int coin_index,
|
|
const char *target_account_payto,
|
|
const char *contract_terms,
|
|
struct GNUNET_TIME_Relative refund_deadline,
|
|
const char *amount,
|
|
unsigned int expected_response_code)
|
|
{
|
|
struct DepositState *ds;
|
|
json_t *wire_details;
|
|
|
|
wire_details = TALER_TESTING_make_wire_details (target_account_payto);
|
|
ds = GNUNET_new (struct DepositState);
|
|
ds->coin_reference = coin_reference;
|
|
ds->coin_index = coin_index;
|
|
ds->wire_details = wire_details;
|
|
ds->contract_terms = json_loads (contract_terms,
|
|
JSON_REJECT_DUPLICATES,
|
|
NULL);
|
|
GNUNET_CRYPTO_eddsa_key_create (&ds->merchant_priv.eddsa_priv);
|
|
if (NULL == ds->contract_terms)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Failed to parse contract terms `%s' for CMD `%s'\n",
|
|
contract_terms,
|
|
label);
|
|
GNUNET_assert (0);
|
|
}
|
|
ds->wallet_timestamp = GNUNET_TIME_absolute_get ();
|
|
(void) GNUNET_TIME_round_abs (&ds->wallet_timestamp);
|
|
|
|
json_object_set_new (ds->contract_terms,
|
|
"timestamp",
|
|
GNUNET_JSON_from_time_abs (ds->wallet_timestamp));
|
|
if (0 != refund_deadline.rel_value_us)
|
|
{
|
|
ds->refund_deadline = GNUNET_TIME_relative_to_absolute (refund_deadline);
|
|
(void) GNUNET_TIME_round_abs (&ds->refund_deadline);
|
|
json_object_set_new (ds->contract_terms,
|
|
"refund_deadline",
|
|
GNUNET_JSON_from_time_abs (ds->refund_deadline));
|
|
}
|
|
GNUNET_assert (GNUNET_OK ==
|
|
TALER_string_to_amount (amount,
|
|
&ds->amount));
|
|
ds->expected_response_code = expected_response_code;
|
|
ds->command_initialized = GNUNET_YES;
|
|
{
|
|
struct TALER_TESTING_Command cmd = {
|
|
.cls = ds,
|
|
.label = label,
|
|
.run = &deposit_run,
|
|
.cleanup = &deposit_cleanup,
|
|
.traits = &deposit_traits
|
|
};
|
|
|
|
return cmd;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Create a "deposit" command that references an existing merchant key.
|
|
*
|
|
* @param label command label.
|
|
* @param coin_reference reference to any operation that can
|
|
* provide a coin.
|
|
* @param coin_index if @a withdraw_reference offers an array of
|
|
* coins, this parameter selects which one in that array.
|
|
* This value is currently ignored, as only one-coin
|
|
* withdrawals are implemented.
|
|
* @param target_account_payto target account for the "deposit"
|
|
* request.
|
|
* @param contract_terms contract terms to be signed over by the
|
|
* coin.
|
|
* @param refund_deadline refund deadline, zero means 'no refunds'.
|
|
* Note, if time were absolute, then it would have come
|
|
* one day and disrupt tests meaning.
|
|
* @param amount how much is going to be deposited.
|
|
* @param expected_response_code expected HTTP response code.
|
|
* @param merchant_priv_reference reference to another operation
|
|
* that has a merchant private key trait
|
|
*
|
|
* @return the command.
|
|
*/
|
|
struct TALER_TESTING_Command
|
|
TALER_TESTING_cmd_deposit_with_ref (const char *label,
|
|
const char *coin_reference,
|
|
unsigned int coin_index,
|
|
const char *target_account_payto,
|
|
const char *contract_terms,
|
|
struct GNUNET_TIME_Relative refund_deadline,
|
|
const char *amount,
|
|
unsigned int expected_response_code,
|
|
const char *merchant_priv_reference)
|
|
{
|
|
struct DepositState *ds;
|
|
json_t *wire_details;
|
|
|
|
wire_details = TALER_TESTING_make_wire_details (target_account_payto);
|
|
ds = GNUNET_new (struct DepositState);
|
|
ds->merchant_priv_reference = merchant_priv_reference;
|
|
ds->coin_reference = coin_reference;
|
|
ds->coin_index = coin_index;
|
|
ds->wire_details = wire_details;
|
|
ds->contract_terms = json_loads (contract_terms,
|
|
JSON_REJECT_DUPLICATES,
|
|
NULL);
|
|
if (NULL == ds->contract_terms)
|
|
{
|
|
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
|
|
"Failed to parse contract terms `%s' for CMD `%s'\n",
|
|
contract_terms,
|
|
label);
|
|
GNUNET_assert (0);
|
|
}
|
|
ds->wallet_timestamp = GNUNET_TIME_absolute_get ();
|
|
(void) GNUNET_TIME_round_abs (&ds->wallet_timestamp);
|
|
|
|
json_object_set_new (ds->contract_terms,
|
|
"timestamp",
|
|
GNUNET_JSON_from_time_abs (ds->wallet_timestamp));
|
|
if (0 != refund_deadline.rel_value_us)
|
|
{
|
|
ds->refund_deadline = GNUNET_TIME_relative_to_absolute (refund_deadline);
|
|
(void) GNUNET_TIME_round_abs (&ds->refund_deadline);
|
|
json_object_set_new (ds->contract_terms,
|
|
"refund_deadline",
|
|
GNUNET_JSON_from_time_abs (ds->refund_deadline));
|
|
}
|
|
GNUNET_assert (GNUNET_OK ==
|
|
TALER_string_to_amount (amount,
|
|
&ds->amount));
|
|
ds->expected_response_code = expected_response_code;
|
|
ds->command_initialized = GNUNET_YES;
|
|
{
|
|
struct TALER_TESTING_Command cmd = {
|
|
.cls = ds,
|
|
.label = label,
|
|
.run = &deposit_run,
|
|
.cleanup = &deposit_cleanup,
|
|
.traits = &deposit_traits
|
|
};
|
|
|
|
return cmd;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Create a "deposit" command that repeats an existing
|
|
* deposit command.
|
|
*
|
|
* @param label command label.
|
|
* @param deposit_reference which deposit command should we repeat
|
|
* @param expected_response_code expected HTTP response code.
|
|
* @return the command.
|
|
*/
|
|
struct TALER_TESTING_Command
|
|
TALER_TESTING_cmd_deposit_replay (const char *label,
|
|
const char *deposit_reference,
|
|
unsigned int expected_response_code)
|
|
{
|
|
struct DepositState *ds;
|
|
|
|
ds = GNUNET_new (struct DepositState);
|
|
ds->deposit_reference = deposit_reference;
|
|
ds->expected_response_code = expected_response_code;
|
|
{
|
|
struct TALER_TESTING_Command cmd = {
|
|
.cls = ds,
|
|
.label = label,
|
|
.run = &deposit_run,
|
|
.cleanup = &deposit_cleanup,
|
|
.traits = &deposit_traits
|
|
};
|
|
|
|
return cmd;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Modify a deposit command to enable retries when we get transient
|
|
* errors from the exchange.
|
|
*
|
|
* @param cmd a deposit command
|
|
* @return the command with retries enabled
|
|
*/
|
|
struct TALER_TESTING_Command
|
|
TALER_TESTING_cmd_deposit_with_retry (struct TALER_TESTING_Command cmd)
|
|
{
|
|
struct DepositState *ds;
|
|
|
|
GNUNET_assert (&deposit_run == cmd.run);
|
|
ds = cmd.cls;
|
|
ds->do_retry = NUM_RETRIES;
|
|
return cmd;
|
|
}
|
|
|
|
|
|
/* end of testing_api_cmd_deposit.c */
|