317 lines
7.8 KiB
C
317 lines
7.8 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2022 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_contract_get.c
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* @brief command for testing GET /contracts/$CPUB
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* @author Christian Grothoff
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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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* State for a "contract get" CMD.
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*/
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struct ContractGetState
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{
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/**
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* JSON string describing the resulting contract.
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*/
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json_t *contract_terms;
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/**
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* Private key to decrypt the contract.
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*/
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struct TALER_ContractDiffiePrivateP contract_priv;
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/**
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* Set to the returned merge key.
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*/
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struct TALER_PurseMergePrivateKeyP merge_priv;
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/**
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* Public key of the purse.
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*/
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struct TALER_PurseContractPublicKeyP purse_pub;
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/**
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* Reference to the command that uploaded the contract.
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*/
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const char *contract_ref;
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/**
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* ContractGet handle while operation is running.
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*/
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struct TALER_EXCHANGE_ContractsGetHandle *dh;
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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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* 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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* True if this is for a 'merge' operation,
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* 'false' if this is for a 'deposit' operation.
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*/
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bool merge;
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};
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/**
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* Callback to analyze the /contracts/$CPUB response, just used to check if
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* the response code is acceptable.
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*
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* @param cls closure.
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* @param dr get response details
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*/
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static void
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get_cb (void *cls,
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const struct TALER_EXCHANGE_ContractGetResponse *dr)
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{
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struct ContractGetState *ds = cls;
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const struct TALER_TESTING_Command *ref;
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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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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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ref = TALER_TESTING_interpreter_lookup_command (ds->is,
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ds->contract_ref);
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if (MHD_HTTP_OK == dr->hr.http_status)
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{
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const struct TALER_PurseMergePrivateKeyP *mp;
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const json_t *ct;
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ds->purse_pub = dr->details.success.purse_pub;
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if (ds->merge)
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{
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if (GNUNET_OK !=
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TALER_TESTING_get_trait_merge_priv (ref,
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&mp))
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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;
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}
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ds->contract_terms =
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TALER_CRYPTO_contract_decrypt_for_merge (
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&ds->contract_priv,
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&ds->purse_pub,
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dr->details.success.econtract,
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dr->details.success.econtract_size,
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&ds->merge_priv);
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if (0 !=
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GNUNET_memcmp (mp,
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&ds->merge_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;
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}
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}
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else
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{
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ds->contract_terms =
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TALER_CRYPTO_contract_decrypt_for_deposit (
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&ds->contract_priv,
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dr->details.success.econtract,
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dr->details.success.econtract_size);
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}
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if (NULL == ds->contract_terms)
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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;
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}
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if (GNUNET_OK !=
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TALER_TESTING_get_trait_contract_terms (ref,
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&ct))
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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;
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}
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if (1 != /* 1: equal, 0: not equal */
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json_equal (ct,
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ds->contract_terms))
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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;
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}
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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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get_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 ContractGetState *ds = cls;
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const struct TALER_ContractDiffiePrivateP *contract_priv;
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const struct TALER_TESTING_Command *ref;
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(void) cmd;
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ds->is = is;
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ref = TALER_TESTING_interpreter_lookup_command (ds->is,
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ds->contract_ref);
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GNUNET_assert (NULL != ref);
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if (GNUNET_OK !=
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TALER_TESTING_get_trait_contract_priv (ref,
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&contract_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;
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}
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ds->contract_priv = *contract_priv;
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ds->dh = TALER_EXCHANGE_contract_get (
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is->exchange,
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contract_priv,
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&get_cb,
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ds);
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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 GET contract\n");
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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 "get" 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 ContractGetState`.
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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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get_cleanup (void *cls,
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const struct TALER_TESTING_Command *cmd)
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{
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struct ContractGetState *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_contract_get_cancel (ds->dh);
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ds->dh = NULL;
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}
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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 "get" 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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get_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 ContractGetState *ds = cls;
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struct TALER_TESTING_Trait traits[] = {
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TALER_TESTING_make_trait_merge_priv (&ds->merge_priv),
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TALER_TESTING_make_trait_purse_pub (&ds->purse_pub),
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TALER_TESTING_make_trait_contract_terms (ds->contract_terms),
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TALER_TESTING_trait_end ()
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};
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/* skip 'merge_priv' if we are in 'merge' mode */
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return TALER_TESTING_get_trait (&traits[ds->merge ? 0 : 1],
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ret,
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trait,
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index);
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}
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struct TALER_TESTING_Command
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TALER_TESTING_cmd_contract_get (
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const char *label,
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unsigned int expected_http_status,
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bool for_merge,
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const char *contract_ref)
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{
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struct ContractGetState *ds;
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ds = GNUNET_new (struct ContractGetState);
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ds->expected_response_code = expected_http_status;
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ds->contract_ref = contract_ref;
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ds->merge = for_merge;
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{
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struct TALER_TESTING_Command cmd = {
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.cls = ds,
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.label = label,
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.run = &get_run,
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.cleanup = &get_cleanup,
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.traits = &get_traits
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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_contract_get.c */
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