diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/Makefile.am | 1 | ||||
| -rw-r--r-- | src/lib/exchange_api_common.c | 38 | ||||
| -rw-r--r-- | src/lib/exchange_api_handle.c | 2 | ||||
| -rw-r--r-- | src/lib/exchange_api_melt.c | 44 | ||||
| -rw-r--r-- | src/lib/exchange_api_recoup.c | 37 | ||||
| -rw-r--r-- | src/lib/exchange_api_recoup_refresh.c | 403 |
6 files changed, 438 insertions, 87 deletions
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am index 2b8e0177e..dd4c527d5 100644 --- a/src/lib/Makefile.am +++ b/src/lib/Makefile.am @@ -43,6 +43,7 @@ libtalerexchange_la_SOURCES = \ exchange_api_management_wire_enable.c \ exchange_api_melt.c \ exchange_api_recoup.c \ + exchange_api_recoup_refresh.c \ exchange_api_refresh_common.c exchange_api_refresh_common.h \ exchange_api_refreshes_reveal.c \ exchange_api_refund.c \ diff --git a/src/lib/exchange_api_common.c b/src/lib/exchange_api_common.c index 93b992e65..139b10665 100644 --- a/src/lib/exchange_api_common.c +++ b/src/lib/exchange_api_common.c @@ -546,17 +546,17 @@ TALER_EXCHANGE_verify_coin_history ( else if (0 == strcasecmp (type, "MELT")) { - struct TALER_RefreshMeltCoinAffirmationPS rm; struct TALER_CoinSpendSignatureP sig; + struct TALER_RefreshCommitmentP rc; struct GNUNET_JSON_Specification spec[] = { GNUNET_JSON_spec_fixed_auto ("coin_sig", &sig), GNUNET_JSON_spec_fixed_auto ("rc", - &rm.rc), + &rc), GNUNET_JSON_spec_fixed_auto ("h_denom_pub", - &rm.h_denom_pub), - TALER_JSON_spec_amount_any_nbo ("melt_fee", - &rm.melt_fee), + h_denom_pub), + TALER_JSON_spec_amount_any ("melt_fee", + &fee), GNUNET_JSON_spec_end () }; @@ -568,26 +568,9 @@ TALER_EXCHANGE_verify_coin_history ( GNUNET_break_op (0); return GNUNET_SYSERR; } - rm.purpose.size = htonl (sizeof (rm)); - rm.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT); - TALER_amount_hton (&rm.amount_with_fee, - &amount); - rm.coin_pub = *coin_pub; - if (GNUNET_OK != - GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT, - &rm, - &sig.eddsa_signature, - &coin_pub->eddsa_pub)) - { - GNUNET_break_op (0); - return GNUNET_SYSERR; - } - *h_denom_pub = rm.h_denom_pub; if (NULL != dk) { /* check that melt fee matches our expectations from /keys! */ - TALER_amount_ntoh (&fee, - &rm.melt_fee); if ( (GNUNET_YES != TALER_amount_cmp_currency (&fee, &dk->fee_refresh)) || @@ -599,6 +582,17 @@ TALER_EXCHANGE_verify_coin_history ( return GNUNET_SYSERR; } } + if (GNUNET_OK != + TALER_wallet_melt_verify (&amount, + &fee, + &rc, + h_denom_pub, + coin_pub, + &sig)) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } add = GNUNET_YES; } else if (0 == strcasecmp (type, diff --git a/src/lib/exchange_api_handle.c b/src/lib/exchange_api_handle.c index 0f2a079b4..df501f0b7 100644 --- a/src/lib/exchange_api_handle.c +++ b/src/lib/exchange_api_handle.c @@ -39,7 +39,7 @@ * Which version of the Taler protocol is implemented * by this library? Used to determine compatibility. */ -#define EXCHANGE_PROTOCOL_CURRENT 11 +#define EXCHANGE_PROTOCOL_CURRENT 12 /** * How many versions are we backwards compatible with? diff --git a/src/lib/exchange_api_melt.c b/src/lib/exchange_api_melt.c index ab20e6fc1..f375171b9 100644 --- a/src/lib/exchange_api_melt.c +++ b/src/lib/exchange_api_melt.c @@ -213,15 +213,10 @@ verify_melt_signature_spend_conflict (struct TALER_EXCHANGE_MeltHandle *mh, const json_t *json) { json_t *history; - struct TALER_Amount original_value; - struct TALER_Amount melt_value_with_fee; struct TALER_Amount total; - struct TALER_CoinSpendPublicKeyP coin_pub; struct GNUNET_JSON_Specification spec[] = { - GNUNET_JSON_spec_json ("history", &history), - GNUNET_JSON_spec_fixed_auto ("coin_pub", &coin_pub), - TALER_JSON_spec_amount_any ("original_value", &original_value), - TALER_JSON_spec_amount_any ("requested_value", &melt_value_with_fee), + GNUNET_JSON_spec_json ("history", + &history), GNUNET_JSON_spec_end () }; const struct MeltedCoin *mc; @@ -240,25 +235,6 @@ verify_melt_signature_spend_conflict (struct TALER_EXCHANGE_MeltHandle *mh, /* Find out which coin was deemed problematic by the exchange */ mc = &mh->md->melted_coin; - - /* check basic coin properties */ - if (0 != TALER_amount_cmp (&original_value, - &mc->original_value)) - { - /* We disagree on the value of the coin */ - GNUNET_break_op (0); - json_decref (history); - return GNUNET_SYSERR; - } - if (0 != TALER_amount_cmp (&melt_value_with_fee, - &mc->melt_amount_with_fee)) - { - /* We disagree on the value of the coin */ - GNUNET_break_op (0); - json_decref (history); - return GNUNET_SYSERR; - } - /* verify coin history */ memset (&h_denom_pub, 0, @@ -267,8 +243,8 @@ verify_melt_signature_spend_conflict (struct TALER_EXCHANGE_MeltHandle *mh, "history"); if (GNUNET_OK != TALER_EXCHANGE_verify_coin_history (&mh->dki, - original_value.currency, - &coin_pub, + mc->original_value.currency, + &mh->coin_pub, history, &h_denom_pub, &total)) @@ -287,7 +263,7 @@ verify_melt_signature_spend_conflict (struct TALER_EXCHANGE_MeltHandle *mh, if (0 > TALER_amount_add (&total, &total, - &melt_value_with_fee)) + &mc->melt_amount_with_fee)) { /* clearly not OK if our transaction would have caused the overflow... */ @@ -295,7 +271,7 @@ verify_melt_signature_spend_conflict (struct TALER_EXCHANGE_MeltHandle *mh, } if (0 >= TALER_amount_cmp (&total, - &original_value)) + &mc->original_value)) { /* transaction should have still fit */ GNUNET_break (0); @@ -488,7 +464,7 @@ TALER_EXCHANGE_melt (struct TALER_EXCHANGE_Handle *exchange, &coin_pub.eddsa_pub); melt_obj = GNUNET_JSON_PACK ( GNUNET_JSON_pack_data_auto ("denom_pub_hash", - &melt.h_denom_pub), + &h_denom_pub), TALER_JSON_pack_denom_sig ("denom_sig", &md->melted_coin.sig), GNUNET_JSON_pack_data_auto ("confirm_sig", @@ -496,13 +472,13 @@ TALER_EXCHANGE_melt (struct TALER_EXCHANGE_Handle *exchange, TALER_JSON_pack_amount ("value_with_fee", &md->melted_coin.melt_amount_with_fee), GNUNET_JSON_pack_data_auto ("rc", - &melt.rc)); + &md->rc)); { char pub_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2]; char *end; end = GNUNET_STRINGS_data_to_string ( - &melt.coin_pub, + &coin_pub, sizeof (struct TALER_CoinSpendPublicKeyP), pub_str, sizeof (pub_str)); @@ -520,7 +496,7 @@ TALER_EXCHANGE_melt (struct TALER_EXCHANGE_Handle *exchange, /* and now we can at last begin the actual request handling */ mh = GNUNET_new (struct TALER_EXCHANGE_MeltHandle); mh->exchange = exchange; - mh->coin_pub = melt.coin_pub; + mh->coin_pub = coin_pub; mh->dki = *dki; memset (&mh->dki.key, 0, diff --git a/src/lib/exchange_api_recoup.c b/src/lib/exchange_api_recoup.c index 05012926f..63e6480cd 100644 --- a/src/lib/exchange_api_recoup.c +++ b/src/lib/exchange_api_recoup.c @@ -79,11 +79,6 @@ struct TALER_EXCHANGE_RecoupHandle */ struct TALER_CoinSpendPublicKeyP coin_pub; - /** - * #GNUNET_YES if the coin was refreshed - */ - int was_refreshed; - }; @@ -99,17 +94,10 @@ static enum GNUNET_GenericReturnValue process_recoup_response (const struct TALER_EXCHANGE_RecoupHandle *ph, const json_t *json) { - int refreshed; struct TALER_ReservePublicKeyP reserve_pub; - struct TALER_CoinSpendPublicKeyP old_coin_pub; struct GNUNET_JSON_Specification spec_withdraw[] = { - GNUNET_JSON_spec_boolean ("refreshed", &refreshed), - GNUNET_JSON_spec_fixed_auto ("reserve_pub", &reserve_pub), - GNUNET_JSON_spec_end () - }; - struct GNUNET_JSON_Specification spec_refresh[] = { - GNUNET_JSON_spec_boolean ("refreshed", &refreshed), - GNUNET_JSON_spec_fixed_auto ("old_coin_pub", &old_coin_pub), + GNUNET_JSON_spec_fixed_auto ("reserve_pub", + &reserve_pub), GNUNET_JSON_spec_end () }; struct TALER_EXCHANGE_HttpResponse hr = { @@ -119,21 +107,15 @@ process_recoup_response (const struct TALER_EXCHANGE_RecoupHandle *ph, if (GNUNET_OK != GNUNET_JSON_parse (json, - ph->was_refreshed ? spec_refresh : spec_withdraw, + spec_withdraw, NULL, NULL)) { GNUNET_break_op (0); return GNUNET_SYSERR; } - if (ph->was_refreshed != refreshed) - { - GNUNET_break_op (0); - return GNUNET_SYSERR; - } ph->cb (ph->cb_cls, &hr, - ph->was_refreshed ? NULL : &reserve_pub, - ph->was_refreshed ? &old_coin_pub : NULL); + &reserve_pub); return GNUNET_OK; } @@ -214,7 +196,7 @@ handle_recoup_finished (void *cls, ec = TALER_JSON_get_error_code (j); switch (ec) { - case TALER_EC_EXCHANGE_RECOUP_COIN_BALANCE_ZERO: + case TALER_EC_EXCHANGE_GENERIC_INSUFFICIENT_FUNDS: if (0 > TALER_amount_cmp (&total, &dki->value)) { @@ -251,7 +233,6 @@ handle_recoup_finished (void *cls, } ph->cb (ph->cb_cls, &hr, - NULL, NULL); TALER_EXCHANGE_recoup_cancel (ph); return; @@ -294,7 +275,6 @@ handle_recoup_finished (void *cls, } ph->cb (ph->cb_cls, &hr, - NULL, NULL); TALER_EXCHANGE_recoup_cancel (ph); } @@ -306,7 +286,6 @@ TALER_EXCHANGE_recoup (struct TALER_EXCHANGE_Handle *exchange, const struct TALER_DenominationSignature *denom_sig, const struct TALER_PlanchetSecretsP *ps, const struct TALER_Amount *amount, - bool was_refreshed, TALER_EXCHANGE_RecoupResultCallback recoup_cb, void *recoup_cb_cls) { @@ -340,9 +319,8 @@ TALER_EXCHANGE_recoup (struct TALER_EXCHANGE_Handle *exchange, GNUNET_JSON_pack_data_auto ("coin_sig", &coin_sig), GNUNET_JSON_pack_data_auto ("coin_blind_key_secret", - &ps->blinding_key), - GNUNET_JSON_pack_bool ("refreshed", - was_refreshed)); + &ps->blinding_key)); + { char pub_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2]; char *end; @@ -376,7 +354,6 @@ TALER_EXCHANGE_recoup (struct TALER_EXCHANGE_Handle *exchange, GNUNET_free (ph); return NULL; } - ph->was_refreshed = was_refreshed; eh = TALER_EXCHANGE_curl_easy_get_ (ph->url); if ( (NULL == eh) || (GNUNET_OK != diff --git a/src/lib/exchange_api_recoup_refresh.c b/src/lib/exchange_api_recoup_refresh.c new file mode 100644 index 000000000..31a1859bd --- /dev/null +++ b/src/lib/exchange_api_recoup_refresh.c @@ -0,0 +1,403 @@ +/* + This file is part of TALER + Copyright (C) 2017-2021 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 + <http://www.gnu.org/licenses/> +*/ +/** + * @file lib/exchange_api_recoup_refresh.c + * @brief Implementation of the /recoup-refresh request of the exchange's HTTP API + * @author Christian Grothoff + */ +#include "platform.h" +#include <jansson.h> +#include <microhttpd.h> /* just for HTTP status codes */ +#include <gnunet/gnunet_util_lib.h> +#include <gnunet/gnunet_json_lib.h> +#include <gnunet/gnunet_curl_lib.h> +#include "taler_json_lib.h" +#include "taler_exchange_service.h" +#include "exchange_api_handle.h" +#include "taler_signatures.h" +#include "exchange_api_curl_defaults.h" + + +/** + * @brief A Recoup Handle + */ +struct TALER_EXCHANGE_RecoupRefreshHandle +{ + + /** + * The connection to exchange this request handle will use + */ + struct TALER_EXCHANGE_Handle *exchange; + + /** + * The url for this request. + */ + char *url; + + /** + * Context for #TEH_curl_easy_post(). Keeps the data that must + * persist for Curl to make the upload. + */ + struct TALER_CURL_PostContext ctx; + + /** + * Denomination key of the coin. + */ + struct TALER_EXCHANGE_DenomPublicKey pk; + + /** + * Handle for the request. + */ + struct GNUNET_CURL_Job *job; + + /** + * Function to call with the result. + */ + TALER_EXCHANGE_RecoupRefreshResultCallback cb; + + /** + * Closure for @a cb. + */ + void *cb_cls; + + /** + * Public key of the coin we are trying to get paid back. + */ + struct TALER_CoinSpendPublicKeyP coin_pub; + +}; + + +/** + * Parse a recoup-refresh response. If it is valid, call the callback. + * + * @param ph recoup handle + * @param json json reply with the signature + * @return #GNUNET_OK if the signature is valid and we called the callback; + * #GNUNET_SYSERR if not (callback must still be called) + */ +static enum GNUNET_GenericReturnValue +process_recoup_response ( + const struct TALER_EXCHANGE_RecoupRefreshHandle *ph, + const json_t *json) +{ + struct TALER_CoinSpendPublicKeyP old_coin_pub; + struct GNUNET_JSON_Specification spec_refresh[] = { + GNUNET_JSON_spec_fixed_auto ("old_coin_pub", + &old_coin_pub), + GNUNET_JSON_spec_end () + }; + struct TALER_EXCHANGE_HttpResponse hr = { + .reply = json, + .http_status = MHD_HTTP_OK + }; + + if (GNUNET_OK != + GNUNET_JSON_parse (json, + spec_refresh, + NULL, NULL)) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + ph->cb (ph->cb_cls, + &hr, + &old_coin_pub); + return GNUNET_OK; +} + + +/** + * Function called when we're done processing the + * HTTP /recoup-refresh request. + * + * @param cls the `struct TALER_EXCHANGE_RecoupRefreshHandle` + * @param response_code HTTP response code, 0 on error + * @param response parsed JSON result, NULL on error + */ +static void +handle_recoup_refresh_finished (void *cls, + long response_code, + const void *response) +{ + struct TALER_EXCHANGE_RecoupRefreshHandle *ph = cls; + const json_t *j = response; + struct TALER_EXCHANGE_HttpResponse hr = { + .reply = j, + .http_status = (unsigned int) response_code + }; + + ph->job = NULL; + switch (response_code) + { + case 0: + hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE; + break; + case MHD_HTTP_OK: + if (GNUNET_OK != + process_recoup_response (ph, + j)) + { + GNUNET_break_op (0); + hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; + hr.http_status = 0; + break; + } + TALER_EXCHANGE_recoup_refresh_cancel (ph); + return; + case MHD_HTTP_BAD_REQUEST: + /* This should never happen, either us or the exchange is buggy + (or API version conflict); just pass JSON reply to the application */ + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + break; + case MHD_HTTP_CONFLICT: + { + /* Insufficient funds, proof attached */ + json_t *history; + struct TALER_Amount total; + struct TALER_DenominationHash h_denom_pub; + const struct TALER_EXCHANGE_DenomPublicKey *dki; + enum TALER_ErrorCode ec; + + dki = &ph->pk; + history = json_object_get (j, + "history"); + if (GNUNET_OK != + TALER_EXCHANGE_verify_coin_history (dki, + dki->fee_deposit.currency, + &ph->coin_pub, + history, + &h_denom_pub, + &total)) + { + GNUNET_break_op (0); + hr.http_status = 0; + hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; + } + else + { + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + } + ec = TALER_JSON_get_error_code (j); + switch (ec) + { + case TALER_EC_EXCHANGE_GENERIC_INSUFFICIENT_FUNDS: + if (0 > TALER_amount_cmp (&total, + &dki->value)) + { + /* recoup MAY have still been possible */ + /* FIXME: This code may falsely complain, as we do not + know that the smallest denomination offered by the + exchange is here. We should look at the key + structure of ph->exchange, and find the smallest + _currently withdrawable_ denomination and check + if the value remaining would suffice... */ + GNUNET_break_op (0); + hr.http_status = 0; + hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; + break; + } + break; + case TALER_EC_EXCHANGE_GENERIC_COIN_CONFLICTING_DENOMINATION_KEY: + if (0 == GNUNET_memcmp (&ph->pk.h_key, + &h_denom_pub)) + { + /* invalid proof provided */ + GNUNET_break_op (0); + hr.http_status = 0; + hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; + break; + } + /* valid error from exchange */ + break; + default: + GNUNET_break_op (0); + hr.http_status = 0; + hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED; + break; + } + ph->cb (ph->cb_cls, + &hr, + NULL); + TALER_EXCHANGE_recoup_refresh_cancel (ph); + return; + } + case MHD_HTTP_FORBIDDEN: + /* Nothing really to verify, exchange says one of the signatures is + invalid; as we checked them, this should never happen, we + should pass the JSON reply to the application */ + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + break; + case MHD_HTTP_NOT_FOUND: + /* Nothing really to verify, this should never + happen, we should pass the JSON reply to the application */ + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + break; + case MHD_HTTP_GONE: + /* Kind of normal: the money was already sent to the merchant + (it was too late for the refund). */ + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + break; + case MHD_HTTP_INTERNAL_SERVER_ERROR: + /* Server had an internal issue; we should retry, but this API + leaves this to the application */ + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + break; + default: + /* unexpected response code */ + hr.ec = TALER_JSON_get_error_code (j); + hr.hint = TALER_JSON_get_error_hint (j); + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Unexpected response code %u/%d for exchange recoup\n", + (unsigned int) response_code, + (int) hr.ec); + GNUNET_break (0); + break; + } + ph->cb (ph->cb_cls, + &hr, + NULL); + TALER_EXCHANGE_recoup_refresh_cancel (ph); +} + + +struct TALER_EXCHANGE_RecoupRefreshHandle * +TALER_EXCHANGE_recoup_refresh ( + struct TALER_EXCHANGE_Handle *exchange, + const struct TALER_EXCHANGE_DenomPublicKey *pk, + const struct TALER_DenominationSignature *denom_sig, + const struct TALER_PlanchetSecretsP *ps, + const struct TALER_Amount *amount, + TALER_EXCHANGE_RecoupRefreshResultCallback recoup_cb, + void *recoup_cb_cls) +{ + struct TALER_EXCHANGE_RecoupRefreshHandle *ph; + struct GNUNET_CURL_Context *ctx; + struct TALER_CoinSpendSignatureP coin_sig; + struct TALER_CoinSpendPublicKeyP coin_pub; + struct TALER_DenominationHash h_denom_pub; + json_t *recoup_obj; + CURL *eh; + char arg_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2 + 32]; + + GNUNET_assert (GNUNET_YES == + TEAH_handle_is_ready (exchange)); + GNUNET_CRYPTO_eddsa_key_get_public (&ps->coin_priv.eddsa_priv, + &coin_pub.eddsa_pub); + TALER_denom_pub_hash (&pk->key, + &h_denom_pub); + TALER_wallet_recoup_refresh_sign (&h_denom_pub, + &ps->blinding_key, + amount, + &ps->coin_priv, + &coin_sig); + recoup_obj = GNUNET_JSON_PACK ( + GNUNET_JSON_pack_data_auto ("denom_pub_hash", + &h_denom_pub), + TALER_JSON_pack_denom_sig ("denom_sig", + denom_sig), + TALER_JSON_pack_amount ("amount", + amount), + GNUNET_JSON_pack_data_auto ("coin_sig", + &coin_sig), + GNUNET_JSON_pack_data_auto ("coin_blind_key_secret", + &ps->blinding_key)); + + { + char pub_str[sizeof (struct TALER_CoinSpendPublicKeyP) * 2]; + char *end; + + end = GNUNET_STRINGS_data_to_string ( + &coin_pub, + sizeof (struct TALER_CoinSpendPublicKeyP), + pub_str, + sizeof (pub_str)); + *end = '\0'; + GNUNET_snprintf (arg_str, + sizeof (arg_str), + "/coins/%s/recoup-refresh", + pub_str); + } + + ph = GNUNET_new (struct TALER_EXCHANGE_RecoupRefreshHandle); + ph->coin_pub = coin_pub; + ph->exchange = exchange; + ph->pk = *pk; + memset (&ph->pk.key, + 0, + sizeof (ph->pk.key)); /* zero out, as lifetime cannot be warranted */ + ph->cb = recoup_cb; + ph->cb_cls = recoup_cb_cls; + ph->url = TEAH_path_to_url (exchange, + arg_str); + if (NULL == ph->url) + { + json_decref (recoup_obj); + GNUNET_free (ph); + return NULL; + } + eh = TALER_EXCHANGE_curl_easy_get_ (ph->url); + if ( (NULL == eh) || + (GNUNET_OK != + TALER_curl_easy_post (&ph->ctx, + eh, + recoup_obj)) ) + { + GNUNET_break (0); + if (NULL != eh) + curl_easy_cleanup (eh); + json_decref (recoup_obj); + GNUNET_free (ph->url); + GNUNET_free (ph); + return NULL; + } + json_decref (recoup_obj); + GNUNET_log (GNUNET_ERROR_TYPE_DEBUG, + "URL for recoup-refresh: `%s'\n", + ph->url); + ctx = TEAH_handle_to_context (exchange); + ph->job = GNUNET_CURL_job_add2 (ctx, + eh, + ph->ctx.headers, + &handle_recoup_refresh_finished, + ph); + return ph; +} + + +void +TALER_EXCHANGE_recoup_refresh_cancel ( + struct TALER_EXCHANGE_RecoupRefreshHandle *ph) +{ + if (NULL != ph->job) + { + GNUNET_CURL_job_cancel (ph->job); + ph->job = NULL; + } + GNUNET_free (ph->url); + TALER_curl_easy_post_finished (&ph->ctx); + GNUNET_free (ph); +} + + +/* end of exchange_api_recoup_refresh.c */ |