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This commit is contained in:
Christian Grothoff 2016-06-07 19:30:25 +02:00
commit f2b2455992
9 changed files with 203 additions and 34 deletions
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5
ChangeLog
View File

@ -1,3 +1,8 @@
Tue Jun 7 15:13:46 CEST 2016
Adding public key of the exchange that was used to sign replies
to applicable callbacks of libtalerexchange. (This will eventually
be needed by the merchant's backend.) -CG
Mon Jun 6 23:59:05 CEST 2016 Mon Jun 6 23:59:05 CEST 2016
Minor code cleanup, fixing FTBFS when run with just 'make' Minor code cleanup, fixing FTBFS when run with just 'make'
or when header installed to a location not included. or when header installed to a location not included.

131
src/benchmark/taler-exchange-benchmark.c
View File

@ -75,7 +75,13 @@ struct Coin {
* use. Otherwise, this will be set (by the interpreter) to the * use. Otherwise, this will be set (by the interpreter) to the
* denomination PK matching @e amount. * denomination PK matching @e amount.
*/ */
struct TALER_EXCHANGE_DenomPublicKey *pk; const struct TALER_EXCHANGE_DenomPublicKey *pk;
/**
* Array of denomination keys needed in case this coin is to be
* refreshed
*/
const struct TALER_EXCHANGE_DenomPublicKey **refresh_pk;
/** /**
* Set (by the interpreter) to the exchange's signature over the * Set (by the interpreter) to the exchange's signature over the
@ -103,6 +109,16 @@ struct Coin {
*/ */
struct TALER_EXCHANGE_DepositHandle *dh; struct TALER_EXCHANGE_DepositHandle *dh;
/**
* Refresh melt handle
*/
struct TALER_EXCHANGE_RefreshMeltHandle *rmh;
/**
* Refresh reveal handle
*/
struct TALER_EXCHANGE_RefreshRevealHandle *rrh;
}; };
/** /**
@ -173,17 +189,34 @@ static struct TALER_MerchantPrivateKeyP merchant_priv;
*/ */
#define COINS_PER_RESERVE 12 #define COINS_PER_RESERVE 12
/**
* Used currency (to be preferably gotten via config file, together
* exchange URI and other needed values)
*/
#define CURRENCY "PUDOS"
/** /**
* Large enough value to allow having 12 coins per reserve without parsing * Large enough value to allow having 12 coins per reserve without parsing
* /keys in the first place * /keys in the first place
*/ */
#define RESERVE_AMOUNT "PUDOS:1000" #define RESERVE_AMOUNT CURRENCY":1000"
/** /**
* Probability a coin can be spent * Probability a coin can be spent
*/ */
#define SPEND_PROBABILITY 0.1 #define SPEND_PROBABILITY 0.1
/**
* Probability a coin can be refreshed
*/
#define REFRESH_PROBABILITY 0.1
/**
* Refreshed once. For each batch of deposits, only one
* coin will be refreshed, according to #REFRESH_PROBABILITY
*/
static unsigned int refreshed_once = GNUNET_NO;
static unsigned int static unsigned int
eval_probability (float probability) eval_probability (float probability)
@ -216,18 +249,74 @@ fail (const char *msg)
} }
/**
* Find denomination key matching the given amount.
*
* @param keys array of keys to search
* @param amount coin value to look for
* @return NULL if no matching key was found
*/
static const struct TALER_EXCHANGE_DenomPublicKey *
find_pk (const struct TALER_EXCHANGE_Keys *keys,
const struct TALER_Amount *amount)
{
unsigned int i;
struct GNUNET_TIME_Absolute now;
struct TALER_EXCHANGE_DenomPublicKey *pk;
char *str;
now = GNUNET_TIME_absolute_get ();
for (i=0;i<keys->num_denom_keys;i++)
{
pk = &keys->denom_keys[i];
if ( (0 == TALER_amount_cmp (amount,
&pk->value)) &&
(now.abs_value_us >= pk->valid_from.abs_value_us) &&
(now.abs_value_us < pk->withdraw_valid_until.abs_value_us) )
return pk;
}
/* do 2nd pass to check if expiration times are to blame for failure */
str = TALER_amount_to_string (amount);
for (i=0;i<keys->num_denom_keys;i++)
{
pk = &keys->denom_keys[i];
if ( (0 == TALER_amount_cmp (amount,
&pk->value)) &&
( (now.abs_value_us < pk->valid_from.abs_value_us) ||
(now.abs_value_us > pk->withdraw_valid_until.abs_value_us) ) )
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"Have denomination key for `%s', but with wrong expiration range %llu vs [%llu,%llu)\n",
str,
(unsigned long long) now.abs_value_us,
(unsigned long long) pk->valid_from.abs_value_us,
(unsigned long long) pk->withdraw_valid_until.abs_value_us);
GNUNET_free (str);
return NULL;
}
}
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
"No denomination key for amount %s found\n",
str);
GNUNET_free (str);
return NULL;
}
/** /**
* Function called with the result of a /deposit operation. * Function called with the result of a /deposit operation.
* *
* @param cls closure with the interpreter state * @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit; * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param exchange_pub public key used by the exchange for signing
* @param obj the received JSON reply, should be kept as proof (and, in case of errors, * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
* be forwarded to the customer) * be forwarded to the customer)
*/ */
static void static void
deposit_cb (void *cls, deposit_cb (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *obj) const json_t *obj)
{ {
unsigned int coin_index = (unsigned int) (long) cls; unsigned int coin_index = (unsigned int) (long) cls;
@ -241,6 +330,13 @@ deposit_cb (void *cls,
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Coin #%d correctly spent!\n", coin_index); GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Coin #%d correctly spent!\n", coin_index);
GNUNET_array_append (spent_coins, spent_coins_size, coin_index); GNUNET_array_append (spent_coins, spent_coins_size, coin_index);
spent_coins_size++; spent_coins_size++;
if (GNUNET_YES == eval_probability (REFRESH_PROBABILITY)
&& GNUNET_NO == refreshed_once)
{
/* TODO: all the refresh logic here */
refreshed_once = GNUNET_YES;
}
} }
/** /**
@ -294,7 +390,7 @@ reserve_withdraw_cb (void *cls,
GNUNET_TIME_round_abs (&timestamp); GNUNET_TIME_round_abs (&timestamp);
GNUNET_TIME_round_abs (&wire_deadline); GNUNET_TIME_round_abs (&wire_deadline);
GNUNET_TIME_round_abs (&refund_deadline); GNUNET_TIME_round_abs (&refund_deadline);
GNUNET_log (GNUNET_ERROR_TYPE_INFO, "Spending %d-th coin\n", coin_index); GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, "Spending %d-th coin\n", coin_index);
TALER_amount_subtract (&amount, TALER_amount_subtract (&amount,
&coins[coin_index].pk->value, &coins[coin_index].pk->value,
&coins[coin_index].pk->fee_deposit); &coins[coin_index].pk->fee_deposit);
@ -355,6 +451,7 @@ reserve_withdraw_cb (void *cls,
/** /**
* Function called upon completion of our /admin/add/incoming request. * Function called upon completion of our /admin/add/incoming request.
* Its duty is withdrawing coins on the freshly created reserve.
* *
* @param cls closure with the interpreter state * @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
@ -370,6 +467,7 @@ add_incoming_cb (void *cls,
struct GNUNET_CRYPTO_EddsaPrivateKey *coin_priv; struct GNUNET_CRYPTO_EddsaPrivateKey *coin_priv;
unsigned int i; unsigned int i;
unsigned int coin_index; unsigned int coin_index;
struct TALER_Amount amount;
GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
"/admin/add/incoming callback called on %d-th reserve\n", "/admin/add/incoming callback called on %d-th reserve\n",
@ -384,8 +482,8 @@ add_incoming_cb (void *cls,
coin_index = reserve_index * COINS_PER_RESERVE + i; coin_index = reserve_index * COINS_PER_RESERVE + i;
coins[coin_index].coin_priv.eddsa_priv = *coin_priv; coins[coin_index].coin_priv.eddsa_priv = *coin_priv;
coins[coin_index].reserve_index = reserve_index; coins[coin_index].reserve_index = reserve_index;
/* Just pick the first denom key (the reserve is rich enough) */ TALER_string_to_amount (CURRENCY":5", &amount);
coins[coin_index].pk = &keys->denom_keys[0]; GNUNET_assert (NULL != (coins[coin_index].pk = find_pk (keys, &amount)));
GNUNET_free (coin_priv); GNUNET_free (coin_priv);
coins[coin_index].wsh = coins[coin_index].wsh =
TALER_EXCHANGE_reserve_withdraw (exchange, TALER_EXCHANGE_reserve_withdraw (exchange,
@ -400,7 +498,7 @@ add_incoming_cb (void *cls,
/** /**
* Run the main interpreter loop that performs exchange operations. * Benchmark runner.
* *
* @param cls closure for benchmark_run() * @param cls closure for benchmark_run()
*/ */
@ -445,7 +543,6 @@ benchmark_run (void *cls)
coins = GNUNET_new_array (COINS_PER_RESERVE * nreserves, coins = GNUNET_new_array (COINS_PER_RESERVE * nreserves,
struct Coin); struct Coin);
/* reserves */
for (i=0;i < nreserves && 0 < nreserves;i++) for (i=0;i < nreserves && 0 < nreserves;i++)
{ {
priv = GNUNET_CRYPTO_eddsa_key_create (); priv = GNUNET_CRYPTO_eddsa_key_create ();
@ -500,7 +597,6 @@ cert_cb (void *cls,
_keys->num_denom_keys); _keys->num_denom_keys);
#undef ERR #undef ERR
/* run actual tests via interpreter-loop */
GNUNET_log (GNUNET_ERROR_TYPE_INFO, GNUNET_log (GNUNET_ERROR_TYPE_INFO,
"Certificate callback invoked, invoking benchmark_run()\n"); "Certificate callback invoked, invoking benchmark_run()\n");
keys = _keys; keys = _keys;
@ -510,7 +606,7 @@ cert_cb (void *cls,
/** /**
* Function run when the test terminates (good or bad). * Function run when the benchmark terminates (good or bad).
* Cleans up our state. * Cleans up our state.
* *
* @param cls the interpreter state. * @param cls the interpreter state.
@ -549,6 +645,21 @@ do_shutdown (void *cls)
TALER_EXCHANGE_deposit_cancel(coins[i].dh); TALER_EXCHANGE_deposit_cancel(coins[i].dh);
coins[i].dh = NULL; coins[i].dh = NULL;
} }
if (NULL != coins[i].rmh)
{
TALER_EXCHANGE_refresh_melt_cancel(coins[i].rmh);
coins[i].rmh = NULL;
}
if (NULL != coins[i].rrh)
{
TALER_EXCHANGE_refresh_reveal_cancel(coins[i].rrh);
coins[i].rmh = NULL;
}
if (NULL != coins[i].refresh_pk)
{
GNUNET_free (coins[i].refresh_pk);
}
} }
GNUNET_free_non_null (reserves); GNUNET_free_non_null (reserves);
@ -570,8 +681,6 @@ do_shutdown (void *cls)
GNUNET_CURL_gnunet_rc_destroy (rc); GNUNET_CURL_gnunet_rc_destroy (rc);
rc = NULL; rc = NULL;
} }
} }

22
src/exchange-lib/exchange_api_deposit.c
View File

@ -94,18 +94,20 @@ struct TALER_EXCHANGE_DepositHandle
* *
* @param dh deposit handle * @param dh deposit handle
* @param json json reply with the signature * @param json json reply with the signature
* @param exchange_pub set to the exchange's public key
* @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
*/ */
static int static int
verify_deposit_signature_ok (const struct TALER_EXCHANGE_DepositHandle *dh, verify_deposit_signature_ok (const struct TALER_EXCHANGE_DepositHandle *dh,
const json_t *json) const json_t *json,
struct TALER_ExchangePublicKeyP *exchange_pub)
{ {
struct TALER_ExchangeSignatureP exchange_sig; struct TALER_ExchangeSignatureP exchange_sig;
struct TALER_ExchangePublicKeyP exchange_pub;
const struct TALER_EXCHANGE_Keys *key_state; const struct TALER_EXCHANGE_Keys *key_state;
struct GNUNET_JSON_Specification spec[] = { struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("sig", &exchange_sig), GNUNET_JSON_spec_fixed_auto ("sig", &exchange_sig),
GNUNET_JSON_spec_fixed_auto ("pub", &exchange_pub), GNUNET_JSON_spec_fixed_auto ("pub", exchange_pub),
GNUNET_JSON_spec_end() GNUNET_JSON_spec_end()
}; };
@ -120,7 +122,7 @@ verify_deposit_signature_ok (const struct TALER_EXCHANGE_DepositHandle *dh,
key_state = TALER_EXCHANGE_get_keys (dh->exchange); key_state = TALER_EXCHANGE_get_keys (dh->exchange);
if (GNUNET_OK != if (GNUNET_OK !=
TALER_EXCHANGE_test_signing_key (key_state, TALER_EXCHANGE_test_signing_key (key_state,
&exchange_pub)) exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -129,7 +131,7 @@ verify_deposit_signature_ok (const struct TALER_EXCHANGE_DepositHandle *dh,
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT, GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT,
&dh->depconf.purpose, &dh->depconf.purpose,
&exchange_sig.eddsa_signature, &exchange_sig.eddsa_signature,
&exchange_pub.eddsa_pub)) &exchange_pub->eddsa_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -200,6 +202,8 @@ handle_deposit_finished (void *cls,
const json_t *json) const json_t *json)
{ {
struct TALER_EXCHANGE_DepositHandle *dh = cls; struct TALER_EXCHANGE_DepositHandle *dh = cls;
struct TALER_ExchangePublicKeyP exchange_pub;
struct TALER_ExchangePublicKeyP *ep = NULL;
dh->job = NULL; dh->job = NULL;
switch (response_code) switch (response_code)
@ -209,11 +213,16 @@ handle_deposit_finished (void *cls,
case MHD_HTTP_OK: case MHD_HTTP_OK:
if (GNUNET_OK != if (GNUNET_OK !=
verify_deposit_signature_ok (dh, verify_deposit_signature_ok (dh,
json)) json,
&exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
response_code = 0; response_code = 0;
} }
else
{
ep = &exchange_pub;
}
break; break;
case MHD_HTTP_BAD_REQUEST: case MHD_HTTP_BAD_REQUEST:
/* This should never happen, either us or the exchange is buggy /* This should never happen, either us or the exchange is buggy
@ -253,6 +262,7 @@ handle_deposit_finished (void *cls,
} }
dh->cb (dh->cb_cls, dh->cb (dh->cb_cls,
response_code, response_code,
ep,
json); json);
TALER_EXCHANGE_deposit_cancel (dh); TALER_EXCHANGE_deposit_cancel (dh);
} }

21
src/exchange-lib/exchange_api_deposit_wtid.c
View File

@ -84,18 +84,19 @@ struct TALER_EXCHANGE_DepositWtidHandle
* *
* @param dwh deposit wtid handle * @param dwh deposit wtid handle
* @param json json reply with the signature * @param json json reply with the signature
* @param[out] exchange_pub set to the exchange's public key
* @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
*/ */
static int static int
verify_deposit_wtid_signature_ok (const struct TALER_EXCHANGE_DepositWtidHandle *dwh, verify_deposit_wtid_signature_ok (const struct TALER_EXCHANGE_DepositWtidHandle *dwh,
const json_t *json) const json_t *json,
struct TALER_ExchangePublicKeyP *exchange_pub)
{ {
struct TALER_ExchangeSignatureP exchange_sig; struct TALER_ExchangeSignatureP exchange_sig;
struct TALER_ExchangePublicKeyP exchange_pub;
const struct TALER_EXCHANGE_Keys *key_state; const struct TALER_EXCHANGE_Keys *key_state;
struct GNUNET_JSON_Specification spec[] = { struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("exchange_sig", &exchange_sig), GNUNET_JSON_spec_fixed_auto ("exchange_sig", &exchange_sig),
GNUNET_JSON_spec_fixed_auto ("exchange_pub", &exchange_pub), GNUNET_JSON_spec_fixed_auto ("exchange_pub", exchange_pub),
GNUNET_JSON_spec_end() GNUNET_JSON_spec_end()
}; };
@ -110,7 +111,7 @@ verify_deposit_wtid_signature_ok (const struct TALER_EXCHANGE_DepositWtidHandle
key_state = TALER_EXCHANGE_get_keys (dwh->exchange); key_state = TALER_EXCHANGE_get_keys (dwh->exchange);
if (GNUNET_OK != if (GNUNET_OK !=
TALER_EXCHANGE_test_signing_key (key_state, TALER_EXCHANGE_test_signing_key (key_state,
&exchange_pub)) exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -119,7 +120,7 @@ verify_deposit_wtid_signature_ok (const struct TALER_EXCHANGE_DepositWtidHandle
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE, GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE,
&dwh->depconf.purpose, &dwh->depconf.purpose,
&exchange_sig.eddsa_signature, &exchange_sig.eddsa_signature,
&exchange_pub.eddsa_pub)) &exchange_pub->eddsa_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -146,6 +147,8 @@ handle_deposit_wtid_finished (void *cls,
struct GNUNET_TIME_Absolute execution_time = GNUNET_TIME_UNIT_FOREVER_ABS; struct GNUNET_TIME_Absolute execution_time = GNUNET_TIME_UNIT_FOREVER_ABS;
const struct TALER_Amount *coin_contribution = NULL; const struct TALER_Amount *coin_contribution = NULL;
struct TALER_Amount coin_contribution_s; struct TALER_Amount coin_contribution_s;
struct TALER_ExchangePublicKeyP exchange_pub;
struct TALER_ExchangePublicKeyP *ep = NULL;
dwh->job = NULL; dwh->job = NULL;
switch (response_code) switch (response_code)
@ -177,11 +180,16 @@ handle_deposit_wtid_finished (void *cls,
coin_contribution = &coin_contribution_s; coin_contribution = &coin_contribution_s;
if (GNUNET_OK != if (GNUNET_OK !=
verify_deposit_wtid_signature_ok (dwh, verify_deposit_wtid_signature_ok (dwh,
json)) json,
&exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
response_code = 0; response_code = 0;
} }
else
{
ep = &exchange_pub;
}
} }
break; break;
case MHD_HTTP_ACCEPTED: case MHD_HTTP_ACCEPTED:
@ -231,6 +239,7 @@ handle_deposit_wtid_finished (void *cls,
} }
dwh->cb (dwh->cb_cls, dwh->cb (dwh->cb_cls,
response_code, response_code,
ep,
json, json,
wtid, wtid,
execution_time, execution_time,

13
src/exchange-lib/exchange_api_refresh.c
View File

@ -951,20 +951,21 @@ struct TALER_EXCHANGE_RefreshMeltHandle
* *
* @param rmh melt handle * @param rmh melt handle
* @param json json reply with the signature * @param json json reply with the signature
* @param[out] exchange_pub public key of the exchange used for the signature
* @param[out] noreveal_index set to the noreveal index selected by the exchange * @param[out] noreveal_index set to the noreveal index selected by the exchange
* @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
*/ */
static int static int
verify_refresh_melt_signature_ok (struct TALER_EXCHANGE_RefreshMeltHandle *rmh, verify_refresh_melt_signature_ok (struct TALER_EXCHANGE_RefreshMeltHandle *rmh,
const json_t *json, const json_t *json,
struct TALER_ExchangePublicKeyP *exchange_pub,
uint16_t *noreveal_index) uint16_t *noreveal_index)
{ {
struct TALER_ExchangeSignatureP exchange_sig; struct TALER_ExchangeSignatureP exchange_sig;
struct TALER_ExchangePublicKeyP exchange_pub;
const struct TALER_EXCHANGE_Keys *key_state; const struct TALER_EXCHANGE_Keys *key_state;
struct GNUNET_JSON_Specification spec[] = { struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("exchange_sig", &exchange_sig), GNUNET_JSON_spec_fixed_auto ("exchange_sig", &exchange_sig),
GNUNET_JSON_spec_fixed_auto ("exchange_pub", &exchange_pub), GNUNET_JSON_spec_fixed_auto ("exchange_pub", exchange_pub),
GNUNET_JSON_spec_uint16 ("noreveal_index", noreveal_index), GNUNET_JSON_spec_uint16 ("noreveal_index", noreveal_index),
GNUNET_JSON_spec_end() GNUNET_JSON_spec_end()
}; };
@ -983,7 +984,7 @@ verify_refresh_melt_signature_ok (struct TALER_EXCHANGE_RefreshMeltHandle *rmh,
key_state = TALER_EXCHANGE_get_keys (rmh->exchange); key_state = TALER_EXCHANGE_get_keys (rmh->exchange);
if (GNUNET_OK != if (GNUNET_OK !=
TALER_EXCHANGE_test_signing_key (key_state, TALER_EXCHANGE_test_signing_key (key_state,
&exchange_pub)) exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -1006,7 +1007,7 @@ verify_refresh_melt_signature_ok (struct TALER_EXCHANGE_RefreshMeltHandle *rmh,
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT, GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT,
&confirm.purpose, &confirm.purpose,
&exchange_sig.eddsa_signature, &exchange_sig.eddsa_signature,
&exchange_pub.eddsa_pub)) &exchange_pub->eddsa_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -1126,6 +1127,7 @@ handle_refresh_melt_finished (void *cls,
{ {
struct TALER_EXCHANGE_RefreshMeltHandle *rmh = cls; struct TALER_EXCHANGE_RefreshMeltHandle *rmh = cls;
uint16_t noreveal_index = TALER_CNC_KAPPA; /* invalid value */ uint16_t noreveal_index = TALER_CNC_KAPPA; /* invalid value */
struct TALER_ExchangePublicKeyP exchange_pub;
rmh->job = NULL; rmh->job = NULL;
switch (response_code) switch (response_code)
@ -1136,6 +1138,7 @@ handle_refresh_melt_finished (void *cls,
if (GNUNET_OK != if (GNUNET_OK !=
verify_refresh_melt_signature_ok (rmh, verify_refresh_melt_signature_ok (rmh,
json, json,
&exchange_pub,
&noreveal_index)) &noreveal_index))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
@ -1146,6 +1149,7 @@ handle_refresh_melt_finished (void *cls,
rmh->melt_cb (rmh->melt_cb_cls, rmh->melt_cb (rmh->melt_cb_cls,
response_code, response_code,
noreveal_index, noreveal_index,
(0 == response_code) ? NULL : &exchange_pub,
json); json);
rmh->melt_cb = NULL; rmh->melt_cb = NULL;
} }
@ -1190,6 +1194,7 @@ handle_refresh_melt_finished (void *cls,
rmh->melt_cb (rmh->melt_cb_cls, rmh->melt_cb (rmh->melt_cb_cls,
response_code, response_code,
UINT16_MAX, UINT16_MAX,
NULL,
json); json);
TALER_EXCHANGE_refresh_melt_cancel (rmh); TALER_EXCHANGE_refresh_melt_cancel (rmh);
} }

21
src/exchange-lib/exchange_api_refund.c
View File

@ -83,18 +83,19 @@ struct TALER_EXCHANGE_RefundHandle
* *
* @param rh refund handle * @param rh refund handle
* @param json json reply with the signature * @param json json reply with the signature
* @param[out] exchange_pub set to the exchange's public key
* @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
*/ */
static int static int
verify_refund_signature_ok (const struct TALER_EXCHANGE_RefundHandle *rh, verify_refund_signature_ok (const struct TALER_EXCHANGE_RefundHandle *rh,
const json_t *json) const json_t *json,
struct TALER_ExchangePublicKeyP *exchange_pub)
{ {
struct TALER_ExchangeSignatureP exchange_sig; struct TALER_ExchangeSignatureP exchange_sig;
struct TALER_ExchangePublicKeyP exchange_pub;
const struct TALER_EXCHANGE_Keys *key_state; const struct TALER_EXCHANGE_Keys *key_state;
struct GNUNET_JSON_Specification spec[] = { struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("sig", &exchange_sig), GNUNET_JSON_spec_fixed_auto ("sig", &exchange_sig),
GNUNET_JSON_spec_fixed_auto ("pub", &exchange_pub), GNUNET_JSON_spec_fixed_auto ("pub", exchange_pub),
GNUNET_JSON_spec_end() GNUNET_JSON_spec_end()
}; };
@ -109,7 +110,7 @@ verify_refund_signature_ok (const struct TALER_EXCHANGE_RefundHandle *rh,
key_state = TALER_EXCHANGE_get_keys (rh->exchange); key_state = TALER_EXCHANGE_get_keys (rh->exchange);
if (GNUNET_OK != if (GNUNET_OK !=
TALER_EXCHANGE_test_signing_key (key_state, TALER_EXCHANGE_test_signing_key (key_state,
&exchange_pub)) exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -118,7 +119,7 @@ verify_refund_signature_ok (const struct TALER_EXCHANGE_RefundHandle *rh,
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_REFUND, GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_REFUND,
&rh->depconf.purpose, &rh->depconf.purpose,
&exchange_sig.eddsa_signature, &exchange_sig.eddsa_signature,
&exchange_pub.eddsa_pub)) &exchange_pub->eddsa_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
return GNUNET_SYSERR; return GNUNET_SYSERR;
@ -141,6 +142,8 @@ handle_refund_finished (void *cls,
const json_t *json) const json_t *json)
{ {
struct TALER_EXCHANGE_RefundHandle *rh = cls; struct TALER_EXCHANGE_RefundHandle *rh = cls;
struct TALER_ExchangePublicKeyP exchange_pub;
struct TALER_ExchangePublicKeyP *ep = NULL;
rh->job = NULL; rh->job = NULL;
switch (response_code) switch (response_code)
@ -150,11 +153,16 @@ handle_refund_finished (void *cls,
case MHD_HTTP_OK: case MHD_HTTP_OK:
if (GNUNET_OK != if (GNUNET_OK !=
verify_refund_signature_ok (rh, verify_refund_signature_ok (rh,
json)) json,
&exchange_pub))
{ {
GNUNET_break_op (0); GNUNET_break_op (0);
response_code = 0; response_code = 0;
} }
else
{
ep = &exchange_pub;
}
break; break;
case MHD_HTTP_BAD_REQUEST: case MHD_HTTP_BAD_REQUEST:
/* This should never happen, either us or the exchange is buggy /* This should never happen, either us or the exchange is buggy
@ -188,6 +196,7 @@ handle_refund_finished (void *cls,
} }
rh->cb (rh->cb_cls, rh->cb (rh->cb_cls,
response_code, response_code,
ep,
json); json);
TALER_EXCHANGE_refund_cancel (rh); TALER_EXCHANGE_refund_cancel (rh);
} }

2
src/exchange-lib/exchange_api_wire_deposits.c
View File

@ -186,6 +186,7 @@ handle_wire_deposits_finished (void *cls,
break; break;
wdh->cb (wdh->cb_cls, wdh->cb (wdh->cb_cls,
response_code, response_code,
&exchange_pub,
json, json,
&h_wire, &h_wire,
&total_amount, &total_amount,
@ -224,6 +225,7 @@ handle_wire_deposits_finished (void *cls,
} }
wdh->cb (wdh->cb_cls, wdh->cb (wdh->cb_cls,
response_code, response_code,
NULL,
json, json,
NULL, NULL, 0, NULL); NULL, NULL, 0, NULL);
TALER_EXCHANGE_wire_deposits_cancel (wdh); TALER_EXCHANGE_wire_deposits_cancel (wdh);

10
src/exchange-lib/test_exchange_api.c
View File

@ -1028,12 +1028,14 @@ reserve_withdraw_cb (void *cls,
* @param cls closure with the interpreter state * @param cls closure with the interpreter state
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit; * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param exchange_pub public key the exchange used for signing
* @param obj the received JSON reply, should be kept as proof (and, in case of errors, * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
* be forwarded to the customer) * be forwarded to the customer)
*/ */
static void static void
deposit_cb (void *cls, deposit_cb (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *obj) const json_t *obj)
{ {
struct InterpreterState *is = cls; struct InterpreterState *is = cls;
@ -1062,12 +1064,14 @@ deposit_cb (void *cls,
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param noreveal_index choice by the exchange in the cut-and-choose protocol, * @param noreveal_index choice by the exchange in the cut-and-choose protocol,
* UINT16_MAX on error * UINT16_MAX on error
* @param exchange_pub public key the exchange used for signing
* @param full_response full response from the exchange (for logging, in case of errors) * @param full_response full response from the exchange (for logging, in case of errors)
*/ */
static void static void
melt_cb (void *cls, melt_cb (void *cls,
unsigned int http_status, unsigned int http_status,
uint16_t noreveal_index, uint16_t noreveal_index,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *full_response) const json_t *full_response)
{ {
struct InterpreterState *is = cls; struct InterpreterState *is = cls;
@ -1388,6 +1392,7 @@ wire_cb (void *cls,
* *
* @param cls closure * @param cls closure
* @param http_status HTTP status code we got, 0 on exchange protocol violation * @param http_status HTTP status code we got, 0 on exchange protocol violation
* @param exchange_pub public key the exchange used for signing
* @param json original json reply (may include signatures, those have then been * @param json original json reply (may include signatures, those have then been
* validated already) * validated already)
* @param wtid extracted wire transfer identifier, or NULL if the exchange could * @param wtid extracted wire transfer identifier, or NULL if the exchange could
@ -1400,6 +1405,7 @@ wire_cb (void *cls,
static void static void
wire_deposits_cb (void *cls, wire_deposits_cb (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *json, const json_t *json,
const struct GNUNET_HashCode *h_wire, const struct GNUNET_HashCode *h_wire,
const struct TALER_Amount *total_amount, const struct TALER_Amount *total_amount,
@ -1515,6 +1521,7 @@ wire_deposits_cb (void *cls,
* *
* @param cls closure * @param cls closure
* @param http_status HTTP status code we got, 0 on exchange protocol violation * @param http_status HTTP status code we got, 0 on exchange protocol violation
* @param exchange_pub public key the exchange used for signing
* @param json original json reply (may include signatures, those have then been * @param json original json reply (may include signatures, those have then been
* validated already) * validated already)
* @param wtid wire transfer identifier used by the exchange, NULL if exchange did not * @param wtid wire transfer identifier used by the exchange, NULL if exchange did not
@ -1527,6 +1534,7 @@ wire_deposits_cb (void *cls,
static void static void
deposit_wtid_cb (void *cls, deposit_wtid_cb (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *json, const json_t *json,
const struct TALER_WireTransferIdentifierRawP *wtid, const struct TALER_WireTransferIdentifierRawP *wtid,
struct GNUNET_TIME_Absolute execution_time, struct GNUNET_TIME_Absolute execution_time,
@ -1580,12 +1588,14 @@ deposit_wtid_cb (void *cls,
* @param cls closure * @param cls closure
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit; * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param exchange_pub public key the exchange used for signing @a obj
* @param obj the received JSON reply, should be kept as proof (and, in particular, * @param obj the received JSON reply, should be kept as proof (and, in particular,
* be forwarded to the customer) * be forwarded to the customer)
*/ */
static void static void
refund_cb (void *cls, refund_cb (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *exchange_pub,
const json_t *obj) const json_t *obj)
{ {
struct InterpreterState *is = cls; struct InterpreterState *is = cls;

10
src/include/taler_exchange_service.h
View File

@ -416,12 +416,14 @@ struct TALER_EXCHANGE_DepositHandle;
* @param cls closure * @param cls closure
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit; * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param sign_key exchange key used to sign @a obj, or NULL
* @param obj the received JSON reply, should be kept as proof (and, in case of errors, * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
* be forwarded to the customer) * be forwarded to the customer)
*/ */
typedef void typedef void
(*TALER_EXCHANGE_DepositResultCallback) (void *cls, (*TALER_EXCHANGE_DepositResultCallback) (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *sign_key,
const json_t *obj); const json_t *obj);
@ -502,12 +504,14 @@ struct TALER_EXCHANGE_RefundHandle;
* @param cls closure * @param cls closure
* @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit; * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param sign_key exchange key used to sign @a obj, or NULL
* @param obj the received JSON reply, should be kept as proof (and, in particular, * @param obj the received JSON reply, should be kept as proof (and, in particular,
* be forwarded to the customer) * be forwarded to the customer)
*/ */
typedef void typedef void
(*TALER_EXCHANGE_RefundResultCallback) (void *cls, (*TALER_EXCHANGE_RefundResultCallback) (void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *sign_key,
const json_t *obj); const json_t *obj);
@ -833,12 +837,14 @@ struct TALER_EXCHANGE_RefreshMeltHandle;
* 0 if the exchange's reply is bogus (fails to follow the protocol) * 0 if the exchange's reply is bogus (fails to follow the protocol)
* @param noreveal_index choice by the exchange in the cut-and-choose protocol, * @param noreveal_index choice by the exchange in the cut-and-choose protocol,
* UINT16_MAX on error * UINT16_MAX on error
* @param sign_key exchange key used to sign @a full_response, or NULL
* @param full_response full response from the exchange (for logging, in case of errors) * @param full_response full response from the exchange (for logging, in case of errors)
*/ */
typedef void typedef void
(*TALER_EXCHANGE_RefreshMeltCallback) (void *cls, (*TALER_EXCHANGE_RefreshMeltCallback) (void *cls,
unsigned int http_status, unsigned int http_status,
uint16_t noreveal_index, uint16_t noreveal_index,
const struct TALER_ExchangePublicKeyP *sign_key,
const json_t *full_response); const json_t *full_response);
@ -1135,6 +1141,7 @@ struct TALER_WireDepositDetails
* *
* @param cls closure * @param cls closure
* @param http_status HTTP status code we got, 0 on exchange protocol violation * @param http_status HTTP status code we got, 0 on exchange protocol violation
* @param sign_key exchange key used to sign @a json, or NULL
* @param json original json reply (may include signatures, those have then been * @param json original json reply (may include signatures, those have then been
* validated already) * validated already)
* @param wtid extracted wire transfer identifier, or NULL if the exchange could * @param wtid extracted wire transfer identifier, or NULL if the exchange could
@ -1147,6 +1154,7 @@ struct TALER_WireDepositDetails
typedef void typedef void
(*TALER_EXCHANGE_WireDepositsCallback)(void *cls, (*TALER_EXCHANGE_WireDepositsCallback)(void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *sign_key,
const json_t *json, const json_t *json,
const struct GNUNET_HashCode *h_wire, const struct GNUNET_HashCode *h_wire,
const struct TALER_Amount *total_amount, const struct TALER_Amount *total_amount,
@ -1195,6 +1203,7 @@ struct TALER_EXCHANGE_DepositWtidHandle;
* *
* @param cls closure * @param cls closure
* @param http_status HTTP status code we got, 0 on exchange protocol violation * @param http_status HTTP status code we got, 0 on exchange protocol violation
* @param sign_key exchange key used to sign @a json, or NULL
* @param json original json reply (may include signatures, those have then been * @param json original json reply (may include signatures, those have then been
* validated already) * validated already)
* @param wtid wire transfer identifier used by the exchange, NULL if exchange did not * @param wtid wire transfer identifier used by the exchange, NULL if exchange did not
@ -1205,6 +1214,7 @@ struct TALER_EXCHANGE_DepositWtidHandle;
typedef void typedef void
(*TALER_EXCHANGE_DepositWtidCallback)(void *cls, (*TALER_EXCHANGE_DepositWtidCallback)(void *cls,
unsigned int http_status, unsigned int http_status,
const struct TALER_ExchangePublicKeyP *sign_key,
const json_t *json, const json_t *json,
const struct TALER_WireTransferIdentifierRawP *wtid, const struct TALER_WireTransferIdentifierRawP *wtid,
struct GNUNET_TIME_Absolute execution_time, struct GNUNET_TIME_Absolute execution_time,