/*
This file is part of TALER
Copyright (C) 2014-2018 Taler Systems SA
TALER is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 3, or
(at your option) any later version.
TALER is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with TALER; see the file COPYING. If not, see
*/
/**
* @file exchange/testing_api_cmd_proposal_lookup.c
* @brief command to execute a proposal lookup
* @author Marcello Stanisci
*/
#include "platform.h"
#include
#include
#include "taler_merchant_service.h"
#include "taler_merchant_testing_lib.h"
/**
* State for a "proposal lookup" CMD. Not used by
* the initial lookup operation.
*/
struct ProposalLookupState
{
/**
* The interpreter state.
*/
struct TALER_TESTING_Interpreter *is;
/**
* URL of the merchant backend.
*/
const char *merchant_url;
/**
* Contract terms we downloaded. Only set if we got #MHD_HTTP_OK.
*/
json_t *contract_terms;
/**
* Hash over the contract terms. Only set if we got #MHD_HTTP_OK.
*/
struct GNUNET_HashCode contract_terms_hash;
/**
* Signature of the merchant. Only set if we got #MHD_HTTP_OK.
*/
struct TALER_MerchantSignatureP merchant_sig;
/**
* Public key of the merchant. Only set if we got #MHD_HTTP_OK.
*/
struct TALER_MerchantPublicKeyP merchant_pub;
/**
* Expected status code.
*/
unsigned int http_status;
/**
* /proposal/lookup operation handle.
*/
struct TALER_MERCHANT_ProposalLookupOperation *plo;
/**
* Reference to a proposal operation. Will offer the
* nonce for the operation.
*/
const char *proposal_reference;
/**
* Order id to lookup upon. If null, the @a proposal_reference
* will offer this value.
*/
const char *order_id;
};
/**
* Free the state of a "proposal lookup" CMD, and possibly
* cancel it if it did not complete.
*
* @param cls closure.
* @param cmd command being freed.
*/
static void
proposal_lookup_cleanup (void *cls,
const struct TALER_TESTING_Command *cmd)
{
struct ProposalLookupState *pls = cls;
if (NULL != pls->plo)
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Command '%s' did not complete\n",
cmd->label);
TALER_MERCHANT_proposal_lookup_cancel (pls->plo);
pls->plo = NULL;
}
if (NULL != pls->contract_terms)
{
json_decref (pls->contract_terms);
pls->contract_terms = NULL;
}
GNUNET_free (pls);
}
/**
* Callback for "proposal lookup" operation, to check the
* response code is as expected.
*
* @param cls closure
* @param hr HTTP response we got
* @param contract_terms the contract terms; they are the
* backend-filled up proposal minus cryptographic
* information.
* @param sig merchant signature over the contract terms.
* @param hash hash code of the contract terms.
*/
static void
proposal_lookup_cb (void *cls,
const struct TALER_MERCHANT_HttpResponse *hr,
const json_t *contract_terms,
const struct TALER_MerchantSignatureP *sig,
const struct GNUNET_HashCode *hash)
{
struct ProposalLookupState *pls = cls;
pls->plo = NULL;
if (pls->http_status != hr->http_status)
TALER_TESTING_FAIL (pls->is);
if (MHD_HTTP_OK == hr->http_status)
{
pls->contract_terms = json_object_get (hr->reply,
"contract_terms");
if (NULL == pls->contract_terms)
TALER_TESTING_FAIL (pls->is);
json_incref (pls->contract_terms);
pls->contract_terms_hash = *hash;
pls->merchant_sig = *sig;
{
const char *error_name;
unsigned int error_line;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("merchant_pub",
&pls->merchant_pub),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (contract_terms,
spec,
&error_name,
&error_line))
TALER_TESTING_FAIL (pls->is);
}
}
TALER_TESTING_interpreter_next (pls->is);
}
/**
* Run the "proposal lookup" CMD.
*
* @param cls closure.
* @param cmd command currently being run.
* @param is interpreter state.
*/
static void
proposal_lookup_run (void *cls,
const struct TALER_TESTING_Command *cmd,
struct TALER_TESTING_Interpreter *is)
{
struct ProposalLookupState *pls = cls;
const char *order_id;
const struct TALER_MerchantPublicKeyP *nonce;
/* Only used if we do NOT use the nonce from traits. */
struct TALER_MerchantPublicKeyP dummy_nonce;
#define GET_TRAIT_NONCE(cmd,ptr) \
TALER_TESTING_get_trait_merchant_pub (cmd, 1, ptr)
pls->is = is;
if (NULL != pls->order_id)
{
order_id = pls->order_id;
GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
&dummy_nonce,
sizeof (dummy_nonce));
nonce = &dummy_nonce;
}
else
{
const struct TALER_TESTING_Command *proposal_cmd;
proposal_cmd = TALER_TESTING_interpreter_lookup_command
(is, pls->proposal_reference);
if (NULL == proposal_cmd)
TALER_TESTING_FAIL (is);
if (GNUNET_OK != GET_TRAIT_NONCE (proposal_cmd,
&nonce))
{
GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
&dummy_nonce,
sizeof (dummy_nonce));
nonce = &dummy_nonce;
}
if (GNUNET_OK != TALER_TESTING_get_trait_order_id
(proposal_cmd, 0, &order_id))
TALER_TESTING_FAIL (is);
}
pls->plo = TALER_MERCHANT_proposal_lookup (is->ctx,
pls->merchant_url,
order_id,
&nonce->eddsa_pub,
&proposal_lookup_cb,
pls);
GNUNET_assert (NULL != pls->plo);
}
/**
* Offer internal data to other commands.
*
* @param cls closure
* @param ret[out] result (could be anything)
* @param trait name of the trait
* @param index index number of the object to extract.
* @return #GNUNET_OK on success
*/
static int
proposal_lookup_traits (void *cls,
const void **ret,
const char *trait,
unsigned int index)
{
struct ProposalLookupState *pls = cls;
struct TALER_TESTING_Trait traits[] = {
TALER_TESTING_make_trait_contract_terms (0,
pls->contract_terms),
TALER_TESTING_make_trait_h_contract_terms (0,
&pls->contract_terms_hash),
TALER_TESTING_make_trait_merchant_sig (0,
&pls->merchant_sig),
TALER_TESTING_make_trait_merchant_pub (0,
&pls->merchant_pub),
TALER_TESTING_trait_end ()
};
return TALER_TESTING_get_trait (traits,
ret,
trait,
index);
}
/**
* Make a "proposal lookup" command.
*
* @param label command label.
* @param merchant_url base URL of the merchant backend
* serving the proposal lookup request.
* @param http_status expected HTTP response code.
* @param proposal_reference reference to a "proposal" CMD.
* @param order_id order id to lookup, can be NULL.
*
* @return the command.
*/
struct TALER_TESTING_Command
TALER_TESTING_cmd_proposal_lookup
(const char *label,
const char *merchant_url,
unsigned int http_status,
const char *proposal_reference,
const char *order_id)
{
struct ProposalLookupState *pls;
pls = GNUNET_new (struct ProposalLookupState);
pls->http_status = http_status;
pls->proposal_reference = proposal_reference;
pls->merchant_url = merchant_url;
pls->order_id = order_id;
{
struct TALER_TESTING_Command cmd = {
.cls = pls,
.label = label,
.run = &proposal_lookup_run,
.cleanup = &proposal_lookup_cleanup,
.traits = &proposal_lookup_traits
};
return cmd;
}
}