aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
m---------contrib/gana0
m---------doc/prebuilt0
-rw-r--r--src/auditor/taler-helper-auditor-reserves.c4
-rw-r--r--src/exchange/taler-exchange-httpd_common_deposit.c6
-rw-r--r--src/exchange/taler-exchange-httpd_keys.c4
-rw-r--r--src/exchange/taler-exchange-httpd_purses_create.c4
-rw-r--r--src/include/taler_exchange_service.h138
-rw-r--r--src/lib/Makefile.am1
-rw-r--r--src/lib/exchange_api_batch_deposit.c647
-rw-r--r--src/lib/exchange_api_common.c62
-rw-r--r--src/lib/exchange_api_common.h20
-rw-r--r--src/lib/exchange_api_deposit.c81
-rw-r--r--src/lib/exchange_api_handle.c2
-rw-r--r--src/lib/exchange_api_purse_create_with_deposit.c4
-rw-r--r--src/lib/exchange_api_purse_create_with_merge.c4
15 files changed, 887 insertions, 90 deletions
diff --git a/contrib/gana b/contrib/gana
-Subproject ce57f1bb32a657c0e479a13401339c9899b1c89
+Subproject 75c838e74c41bf9a6c02cdfe8109a444056bf26
diff --git a/doc/prebuilt b/doc/prebuilt
-Subproject 1ed97b23f19c80fa84b21a5eb0c686d5491e8ec
+Subproject 74d9c44ebc257a3d8b9c2c0a806508bd0cc5269
diff --git a/src/auditor/taler-helper-auditor-reserves.c b/src/auditor/taler-helper-auditor-reserves.c
index 54d3db7c3..c6c4d3ad3 100644
--- a/src/auditor/taler-helper-auditor-reserves.c
+++ b/src/auditor/taler-helper-auditor-reserves.c
@@ -1283,8 +1283,8 @@ handle_purse_deposits (
struct ReserveContext *rc = cls;
const char *base_url
= (NULL == deposit->exchange_base_url)
- ? TALER_ARL_exchange_url
- : deposit->exchange_base_url;
+ ? TALER_ARL_exchange_url
+ : deposit->exchange_base_url;
enum GNUNET_DB_QueryStatus qs;
struct TALER_Amount amount_minus_fee;
struct TALER_Amount new_balance;
diff --git a/src/exchange/taler-exchange-httpd_common_deposit.c b/src/exchange/taler-exchange-httpd_common_deposit.c
index cfa15fccb..694dfa411 100644
--- a/src/exchange/taler-exchange-httpd_common_deposit.c
+++ b/src/exchange/taler-exchange-httpd_common_deposit.c
@@ -214,8 +214,8 @@ TEH_common_deposit_check_purse_deposit (
MHD_HTTP_FORBIDDEN,
TALER_EC_EXCHANGE_PURSE_DEPOSIT_COIN_SIGNATURE_INVALID,
TEH_base_url))
- ? GNUNET_NO
- : GNUNET_SYSERR;
+ ? GNUNET_NO
+ : GNUNET_SYSERR;
}
/* Check and verify the age restriction. */
@@ -301,7 +301,7 @@ if (0 >
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_DB_COMMIT_FAILED,
"make_coin_known"))
- ? GNUNET_NO : GNUNET_SYSERR;
+ ? GNUNET_NO : GNUNET_SYSERR;
}
if (qs < 0)
return (MHD_YES == mhd_ret) ? GNUNET_NO : GNUNET_SYSERR;
diff --git a/src/exchange/taler-exchange-httpd_keys.c b/src/exchange/taler-exchange-httpd_keys.c
index 65fe0f315..b1fa2cbc4 100644
--- a/src/exchange/taler-exchange-httpd_keys.c
+++ b/src/exchange/taler-exchange-httpd_keys.c
@@ -2216,10 +2216,10 @@ finish_keys_response (struct TEH_KeyStateHandle *ksh)
switch (meta.cipher)
{
case TALER_DENOMINATION_RSA:
- cipher = age_restricted ? "RSA+age_restricted": "RSA";
+ cipher = age_restricted ? "RSA+age_restricted" : "RSA";
break;
case TALER_DENOMINATION_CS:
- cipher = age_restricted ? "CS+age_restricted": "CS";
+ cipher = age_restricted ? "CS+age_restricted" : "CS";
break;
default:
GNUNET_assert (false);
diff --git a/src/exchange/taler-exchange-httpd_purses_create.c b/src/exchange/taler-exchange-httpd_purses_create.c
index b6eea05fa..9cabdb1a1 100644
--- a/src/exchange/taler-exchange-httpd_purses_create.c
+++ b/src/exchange/taler-exchange-httpd_purses_create.c
@@ -458,8 +458,8 @@ parse_coin (struct MHD_Connection *connection,
MHD_HTTP_INTERNAL_SERVER_ERROR,
TALER_EC_GENERIC_FAILED_COMPUTE_AMOUNT,
"total deposit contribution"))
- ? GNUNET_NO
- : GNUNET_SYSERR;
+ ? GNUNET_NO
+ : GNUNET_SYSERR;
}
return GNUNET_OK;
}
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
index bd2a5bcaa..6c3ad7a01 100644
--- a/src/include/taler_exchange_service.h
+++ b/src/include/taler_exchange_service.h
@@ -1047,6 +1047,144 @@ void
TALER_EXCHANGE_deposit_cancel (struct TALER_EXCHANGE_DepositHandle *deposit);
+/**
+ * @brief A Batch Deposit Handle
+ */
+struct TALER_EXCHANGE_BatchDepositHandle;
+
+
+/**
+ * Structure with information about a batch deposit
+ * operation's result.
+ */
+struct TALER_EXCHANGE_BatchDepositResult
+{
+ /**
+ * HTTP response data
+ */
+ struct TALER_EXCHANGE_HttpResponse hr;
+
+ union
+ {
+
+ /**
+ * Information returned if the HTTP status is
+ * #MHD_HTTP_OK.
+ */
+ struct
+ {
+ /**
+ * Time when the exchange generated the batch deposit confirmation
+ */
+ struct GNUNET_TIME_Timestamp deposit_timestamp;
+
+ /**
+ * Array of signatures provided by the exchange
+ */
+ const struct TALER_ExchangeSignatureP *exchange_sigs;
+
+ /**
+ * exchange key used to sign @a exchange_sig.
+ */
+ const struct TALER_ExchangePublicKeyP *exchange_pub;
+
+ /**
+ * Base URL for looking up wire transfers, or
+ * NULL to use the default base URL.
+ */
+ const char *transaction_base_url;
+
+ /**
+ * Length of the @e exchange_sigs array.
+ */
+ unsigned int num_signatures;
+
+ } success;
+
+ /**
+ * Information returned if the HTTP status is
+ * #MHD_HTTP_CONFLICT.
+ */
+ struct
+ {
+ /* TODO: returning full details is not implemented */
+ } conflict;
+
+ } details;
+};
+
+
+/**
+ * Callbacks of this type are used to serve the result of submitting a
+ * deposit permission request to a exchange.
+ *
+ * @param cls closure
+ * @param dr deposit response details
+ */
+typedef void
+(*TALER_EXCHANGE_BatchDepositResultCallback) (
+ void *cls,
+ const struct TALER_EXCHANGE_BatchDepositResult *dr);
+
+
+/**
+ * Submit a batch of deposit permissions to the exchange and get the
+ * exchange's response. This API is typically used by a merchant. Note that
+ * while we return the response verbatim to the caller for further processing,
+ * we do already verify that the response is well-formed (i.e. that signatures
+ * included in the response are all valid). If the exchange's reply is not
+ * well-formed, we return an HTTP status code of zero to @a cb.
+ *
+ * We also verify that the @a cdds.coin_sig are valid for this deposit
+ * request, and that the @a cdds.ub_sig are a valid signatures for @a
+ * coin_pub. Also, the @a exchange must be ready to operate (i.e. have
+ * finished processing the /keys reply). If either check fails, we do
+ * NOT initiate the transaction with the exchange and instead return NULL.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param dcd details about the contract the deposit is for
+ * @param num_cdds length of the @a cdds array
+ * @param cdds array with details about the coins to be deposited
+ * @param cb the callback to call when a reply for this request is available
+ * @param cb_cls closure for the above callback
+ * @param[out] ec if NULL is returned, set to the error code explaining why the operation failed
+ * @return a handle for this request; NULL if the inputs are invalid (i.e.
+ * signatures fail to verify). In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_BatchDepositHandle *
+TALER_EXCHANGE_batch_deposit (
+ struct TALER_EXCHANGE_Handle *exchange,
+ const struct TALER_EXCHANGE_DepositContractDetail *dcd,
+ unsigned int num_cdds,
+ const struct TALER_EXCHANGE_CoinDepositDetail *cdds,
+ TALER_EXCHANGE_BatchDepositResultCallback cb,
+ void *cb_cls,
+ enum TALER_ErrorCode *ec);
+
+
+/**
+ * Change the chance that our deposit confirmation will be given to the
+ * auditor to 100%.
+ *
+ * @param deposit the batch deposit permission request handle
+ */
+void
+TALER_EXCHANGE_batch_deposit_force_dc (struct
+ TALER_EXCHANGE_BatchDepositHandle *
+ deposit);
+
+
+/**
+ * Cancel a batch deposit permission request. This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param deposit the deposit permission request handle
+ */
+void
+TALER_EXCHANGE_batch_deposit_cancel (struct
+ TALER_EXCHANGE_BatchDepositHandle *deposit);
+
+
/* ********************* /coins/$COIN_PUB/refund *********************** */
/**
diff --git a/src/lib/Makefile.am b/src/lib/Makefile.am
index 844ca52fc..76157c43a 100644
--- a/src/lib/Makefile.am
+++ b/src/lib/Makefile.am
@@ -22,6 +22,7 @@ libtalerexchange_la_LDFLAGS = \
-no-undefined
libtalerexchange_la_SOURCES = \
exchange_api_auditor_add_denomination.c \
+ exchange_api_batch_deposit.c \
exchange_api_batch_withdraw.c \
exchange_api_batch_withdraw2.c \
exchange_api_curl_defaults.c exchange_api_curl_defaults.h \
diff --git a/src/lib/exchange_api_batch_deposit.c b/src/lib/exchange_api_batch_deposit.c
new file mode 100644
index 000000000..be77f682b
--- /dev/null
+++ b/src/lib/exchange_api_batch_deposit.c
@@ -0,0 +1,647 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2014-2022 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_batch_deposit.c
+ * @brief Implementation of the /batch-deposit request of the exchange's HTTP API
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @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_auditor_service.h"
+#include "taler_exchange_service.h"
+#include "exchange_api_common.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+#include "exchange_api_curl_defaults.h"
+
+
+/**
+ * 1:#AUDITOR_CHANCE is the probability that we report deposits
+ * to the auditor.
+ *
+ * 20==5% of going to auditor. This is possibly still too high, but set
+ * deliberately this high for testing
+ */
+#define AUDITOR_CHANCE 20
+
+/**
+ * @brief A Deposit Handle
+ */
+struct TALER_EXCHANGE_BatchDepositHandle
+{
+
+ /**
+ * 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;
+
+ /**
+ * Handle for the request.
+ */
+ struct GNUNET_CURL_Job *job;
+
+ /**
+ * Function to call with the result.
+ */
+ TALER_EXCHANGE_BatchDepositResultCallback cb;
+
+ /**
+ * Closure for @a cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Details about the contract.
+ */
+ struct TALER_EXCHANGE_DepositContractDetail dcd;
+
+ /**
+ * Array with details about the coins.
+ */
+ struct TALER_EXCHANGE_CoinDepositDetail *cdds;
+
+ /**
+ * Hash of the merchant's wire details.
+ */
+ struct TALER_MerchantWireHashP h_wire;
+
+ /**
+ * Hash over the extensions, or all zero.
+ */
+ struct TALER_ExtensionContractHashP h_extensions;
+
+ /**
+ * Time when this confirmation was generated / when the exchange received
+ * the deposit request.
+ */
+ struct GNUNET_TIME_Timestamp exchange_timestamp;
+
+ /**
+ * Exchange signatures, set for #auditor_cb.
+ */
+ struct TALER_ExchangeSignatureP *exchange_sigs;
+
+ /**
+ * Exchange signing public key, set for #auditor_cb.
+ */
+ struct TALER_ExchangePublicKeyP exchange_pub;
+
+ /**
+ * Chance that we will inform the auditor about the deposit
+ * is 1:n, where the value of this field is "n".
+ */
+ unsigned int auditor_chance;
+
+ /**
+ * Length of the @e cdds array.
+ */
+ unsigned int num_cdds;
+
+};
+
+
+/**
+ * Function called for each auditor to give us a chance to possibly
+ * launch a deposit confirmation interaction.
+ *
+ * @param cls closure
+ * @param ah handle to the auditor
+ * @param auditor_pub public key of the auditor
+ * @return NULL if no deposit confirmation interaction was launched
+ */
+static struct TEAH_AuditorInteractionEntry *
+auditor_cb (void *cls,
+ struct TALER_AUDITOR_Handle *ah,
+ const struct TALER_AuditorPublicKeyP *auditor_pub)
+{
+ struct TALER_EXCHANGE_BatchDepositHandle *dh = cls;
+ const struct TALER_EXCHANGE_Keys *key_state;
+ const struct TALER_EXCHANGE_SigningPublicKey *spk;
+ struct TEAH_AuditorInteractionEntry *aie;
+ struct TALER_Amount amount_without_fee;
+ const struct TALER_EXCHANGE_DenomPublicKey *dki;
+ unsigned int coin;
+
+ if (0 !=
+ GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+ dh->auditor_chance))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Not providing deposit confirmation to auditor\n");
+ return NULL;
+ }
+ coin = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+ dh->num_cdds);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Will provide deposit confirmation to auditor `%s'\n",
+ TALER_B2S (auditor_pub));
+ key_state = TALER_EXCHANGE_get_keys (dh->exchange);
+ dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
+ &dh->cdds[coin].h_denom_pub);
+ GNUNET_assert (NULL != dki);
+ spk = TALER_EXCHANGE_get_signing_key_info (key_state,
+ &dh->exchange_pub);
+ if (NULL == spk)
+ {
+ GNUNET_break_op (0);
+ return NULL;
+ }
+ GNUNET_assert (0 <=
+ TALER_amount_subtract (&amount_without_fee,
+ &dh->cdds[coin].amount,
+ &dki->fees.deposit));
+ aie = GNUNET_new (struct TEAH_AuditorInteractionEntry);
+ aie->dch = TALER_AUDITOR_deposit_confirmation (
+ ah,
+ &dh->h_wire,
+ &dh->h_extensions,
+ &dh->dcd.h_contract_terms,
+ dh->exchange_timestamp,
+ dh->dcd.wire_deadline,
+ dh->dcd.refund_deadline,
+ &amount_without_fee,
+ &dh->cdds[coin].coin_pub,
+ &dh->dcd.merchant_pub,
+ &dh->exchange_pub,
+ &dh->exchange_sigs[coin],
+ &key_state->master_pub,
+ spk->valid_from,
+ spk->valid_until,
+ spk->valid_legal,
+ &spk->master_sig,
+ &TEAH_acc_confirmation_cb,
+ aie);
+ return aie;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /deposit request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_BatchDepositHandle`
+ * @param response_code HTTP response code, 0 on error
+ * @param response parsed JSON result, NULL on error
+ */
+static void
+handle_deposit_finished (void *cls,
+ long response_code,
+ const void *response)
+{
+ struct TALER_EXCHANGE_BatchDepositHandle *dh = cls;
+ const json_t *j = response;
+ struct TALER_EXCHANGE_BatchDepositResult dr = {
+ .hr.reply = j,
+ .hr.http_status = (unsigned int) response_code
+ };
+ const struct TALER_EXCHANGE_Keys *keys;
+
+ dh->job = NULL;
+ keys = TALER_EXCHANGE_get_keys (dh->exchange);
+ switch (response_code)
+ {
+ case 0:
+ dr.hr.ec = TALER_EC_GENERIC_INVALID_RESPONSE;
+ break;
+ case MHD_HTTP_OK:
+ {
+ const struct TALER_EXCHANGE_Keys *key_state;
+ json_t *sigs;
+ json_t *sig;
+ unsigned int idx;
+ struct GNUNET_JSON_Specification spec[] = {
+ GNUNET_JSON_spec_json ("exchange_sigs",
+ &sigs),
+ GNUNET_JSON_spec_fixed_auto ("exchange_pub",
+ &dh->exchange_pub),
+ GNUNET_JSON_spec_mark_optional (
+ GNUNET_JSON_spec_string ("transaction_base_url",
+ &dr.details.success.transaction_base_url),
+ NULL),
+ GNUNET_JSON_spec_timestamp ("exchange_timestamp",
+ &dh->exchange_timestamp),
+ GNUNET_JSON_spec_end ()
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_JSON_parse (j,
+ spec,
+ NULL, NULL))
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
+ break;
+ }
+ if (json_array_size (sigs) != dh->num_cdds)
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
+ break;
+ }
+ dh->exchange_sigs = GNUNET_new_array (dh->num_cdds,
+ struct TALER_ExchangeSignatureP);
+ key_state = TALER_EXCHANGE_get_keys (dh->exchange);
+ if (GNUNET_OK !=
+ TALER_EXCHANGE_test_signing_key (key_state,
+ &dh->exchange_pub))
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE;
+ break;
+ }
+ json_array_foreach (sigs, idx, sig)
+ {
+ struct GNUNET_JSON_Specification ispec[] = {
+ GNUNET_JSON_spec_fixed_auto ("exchange_sig",
+ &dh->exchange_sigs[idx]),
+ GNUNET_JSON_spec_end ()
+ };
+ struct TALER_Amount amount_without_fee;
+ const struct TALER_EXCHANGE_DenomPublicKey *dki;
+
+ if (GNUNET_OK !=
+ GNUNET_JSON_parse (sig,
+ ispec,
+ NULL, NULL))
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
+ GNUNET_JSON_parse_free (spec);
+ break;
+ }
+ dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
+ &dh->cdds[idx].
+ h_denom_pub);
+ GNUNET_assert (NULL != dki);
+ GNUNET_assert (0 <=
+ TALER_amount_subtract (&amount_without_fee,
+ &dh->cdds[idx].amount,
+ &dki->fees.deposit));
+
+ if (GNUNET_OK !=
+ TALER_exchange_online_deposit_confirmation_verify (
+ &dh->dcd.h_contract_terms,
+ &dh->h_wire,
+ &dh->h_extensions,
+ dh->exchange_timestamp,
+ dh->dcd.wire_deadline,
+ dh->dcd.refund_deadline,
+ &amount_without_fee,
+ &dh->cdds[idx].coin_pub,
+ &dh->dcd.merchant_pub,
+ &dh->exchange_pub,
+ &dh->exchange_sigs[idx]))
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_EXCHANGE_DEPOSIT_INVALID_SIGNATURE_BY_EXCHANGE;
+ break;
+ }
+ }
+ TEAH_get_auditors_for_dc (dh->exchange,
+ &auditor_cb,
+ dh);
+ }
+ dr.details.success.exchange_sigs = dh->exchange_sigs;
+ dr.details.success.exchange_pub = &dh->exchange_pub;
+ dr.details.success.deposit_timestamp = dh->exchange_timestamp;
+ dr.details.success.num_signatures = dh->num_cdds;
+ break;
+ 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 */
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ break;
+ case MHD_HTTP_FORBIDDEN:
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ /* 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 */
+ break;
+ case MHD_HTTP_NOT_FOUND:
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ /* Nothing really to verify, this should never
+ happen, we should pass the JSON reply to the application */
+ break;
+ case MHD_HTTP_CONFLICT:
+ {
+ const struct TALER_EXCHANGE_Keys *key_state;
+ struct TALER_CoinSpendPublicKeyP coin_pub;
+ struct GNUNET_JSON_Specification spec[] = {
+ GNUNET_JSON_spec_fixed_auto ("coin_pub",
+ &coin_pub),
+ GNUNET_JSON_spec_end ()
+ };
+ const struct TALER_EXCHANGE_DenomPublicKey *dki;
+ bool found = false;
+
+ if (GNUNET_OK !=
+ GNUNET_JSON_parse (j,
+ spec,
+ NULL, NULL))
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
+ break;
+ }
+ for (unsigned int i = 0; i<dh->num_cdds; i++)
+ {
+ if (0 !=
+ GNUNET_memcmp (&coin_pub,
+ &dh->cdds[i].coin_pub))
+ continue;
+ key_state = TALER_EXCHANGE_get_keys (dh->exchange);
+ dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
+ &dh->cdds[i].
+ h_denom_pub);
+ GNUNET_assert (NULL != dki);
+ if (GNUNET_OK !=
+ TALER_EXCHANGE_check_coin_conflict_ (
+ keys,
+ j,
+ dki,
+ &dh->cdds[i].coin_pub,
+ &dh->cdds[i].coin_sig,
+ &dh->cdds[i].amount))
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
+ break;
+ }
+ found = true;
+ break;
+ }
+ if (! found)
+ {
+ GNUNET_break_op (0);
+ dr.hr.http_status = 0;
+ dr.hr.ec = TALER_EC_GENERIC_REPLY_MALFORMED;
+ break;
+ }
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ }
+ break;
+ case MHD_HTTP_GONE:
+ /* could happen if denomination was revoked */
+ /* Note: one might want to check /keys for revocation
+ signature here, alas tricky in case our /keys
+ is outdated => left to clients */
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ break;
+ case MHD_HTTP_INTERNAL_SERVER_ERROR:
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ /* Server had an internal issue; we should retry, but this API
+ leaves this to the application */
+ break;
+ default:
+ /* unexpected response code */
+ dr.hr.ec = TALER_JSON_get_error_code (j);
+ dr.hr.hint = TALER_JSON_get_error_hint (j);
+ GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+ "Unexpected response code %u/%d for exchange deposit\n",
+ (unsigned int) response_code,
+ dr.hr.ec);
+ GNUNET_break_op (0);
+ break;
+ }
+ dh->cb (dh->cb_cls,
+ &dr);
+ TALER_EXCHANGE_batch_deposit_cancel (dh);
+}
+
+
+struct TALER_EXCHANGE_BatchDepositHandle *
+TALER_EXCHANGE_batch_deposit (
+ struct TALER_EXCHANGE_Handle *exchange,
+ const struct TALER_EXCHANGE_DepositContractDetail *dcd,
+ unsigned int num_cdds,
+ const struct TALER_EXCHANGE_CoinDepositDetail *cdds,
+ TALER_EXCHANGE_BatchDepositResultCallback cb,
+ void *cb_cls,
+ enum TALER_ErrorCode *ec)
+{
+ const struct TALER_EXCHANGE_Keys *key_state;
+ struct TALER_EXCHANGE_BatchDepositHandle *dh;
+ struct GNUNET_CURL_Context *ctx;
+ json_t *deposit_obj;
+ json_t *deposits;
+ CURL *eh;
+ struct TALER_Amount amount_without_fee;
+
+ GNUNET_assert (GNUNET_YES ==
+ TEAH_handle_is_ready (exchange));
+ if (GNUNET_TIME_timestamp_cmp (dcd->refund_deadline,
+ >,
+ dcd->wire_deadline))
+ {
+ GNUNET_break_op (0);
+ *ec = TALER_EC_EXCHANGE_DEPOSIT_REFUND_DEADLINE_AFTER_WIRE_DEADLINE;
+ return NULL;
+ }
+ key_state = TALER_EXCHANGE_get_keys (exchange);
+ dh = GNUNET_new (struct TALER_EXCHANGE_BatchDepositHandle);
+ dh->auditor_chance = AUDITOR_CHANCE;
+ dh->exchange = exchange;
+ dh->cb = cb;
+ dh->cb_cls = cb_cls;
+ dh->cdds = GNUNET_memdup (cdds,
+ num_cdds
+ * sizeof (*cdds));
+ dh->num_cdds = num_cdds;
+ dh->dcd = *dcd;
+ if (NULL != dcd->extension_details)
+ TALER_deposit_extension_hash (dcd->extension_details,
+ &dh->h_extensions);
+ TALER_merchant_wire_signature_hash (dcd->merchant_payto_uri,
+ &dcd->wire_salt,
+ &dh->h_wire);
+ deposits = json_array ();
+ GNUNET_assert (NULL != deposits);
+ for (unsigned int i = 0; i<num_cdds; i++)
+ {
+ const struct TALER_EXCHANGE_CoinDepositDetail *cdd = &cdds[i];
+ const struct TALER_EXCHANGE_DenomPublicKey *dki;
+
+ dki = TALER_EXCHANGE_get_denomination_key_by_hash (key_state,
+ &cdd->h_denom_pub);
+ if (NULL == dki)
+ {
+ *ec = TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN;
+ GNUNET_break_op (0);
+ return NULL;
+ }
+ if (0 >
+ TALER_amount_subtract (&amount_without_fee,
+ &cdd->amount,
+ &dki->fees.deposit))
+ {
+ *ec = TALER_EC_EXCHANGE_DEPOSIT_FEE_ABOVE_AMOUNT;
+ GNUNET_break_op (0);
+ GNUNET_free (dh->cdds);
+ GNUNET_free (dh);
+ return NULL;
+ }
+
+ if (GNUNET_OK !=
+ TALER_EXCHANGE_verify_deposit_signature_ (dcd,
+ &dh->h_extensions,
+ &dh->h_wire,
+ cdd,
+ dki))
+ {
+ *ec = TALER_EC_EXCHANGE_DEPOSIT_COIN_SIGNATURE_INVALID;
+ GNUNET_break_op (0);
+ GNUNET_free (dh->cdds);
+ GNUNET_free (dh);
+ return NULL;
+ }
+ GNUNET_assert (
+ 0 ==
+ json_array_append_new (
+ deposits,
+ GNUNET_JSON_PACK (
+ TALER_JSON_pack_amount ("contribution",
+ &cdd->amount),
+ GNUNET_JSON_pack_allow_null (
+ GNUNET_JSON_pack_data_auto ("h_age_commitment",
+ &cdd->h_age_commitment)),
+ GNUNET_JSON_pack_data_auto ("denom_pub_hash",
+ &cdd->h_denom_pub),
+ TALER_JSON_pack_denom_sig ("ub_sig",
+ &cdd->denom_sig),
+ GNUNET_JSON_pack_data_auto ("coin_sig",
+ &cdd->coin_sig)
+ )));
+ }
+ dh->url = TEAH_path_to_url (exchange,
+ "/batch-deposit");
+ if (NULL == dh->url)
+ {
+ GNUNET_break (0);
+ *ec = TALER_EC_GENERIC_ALLOCATION_FAILURE;
+ GNUNET_free (dh->url);
+ GNUNET_free (dh->cdds);
+ GNUNET_free (dh);
+ return NULL;
+ }
+
+ deposit_obj = GNUNET_JSON_PACK (
+ GNUNET_JSON_pack_array_steal ("coins",
+ deposits),
+ GNUNET_JSON_pack_string ("merchant_payto_uri",
+ dcd->merchant_payto_uri),
+ GNUNET_JSON_pack_data_auto ("wire_salt",
+ &dcd->wire_salt),
+ GNUNET_JSON_pack_data_auto ("h_contract_terms",
+ &dcd->h_contract_terms),
+ GNUNET_JSON_pack_timestamp ("timestamp",
+ dcd->timestamp),
+ GNUNET_JSON_pack_data_auto ("merchant_pub",
+ &dcd->merchant_pub),
+ GNUNET_JSON_pack_allow_null (
+ GNUNET_JSON_pack_timestamp ("refund_deadline",
+ dcd->refund_deadline)),
+ GNUNET_JSON_pack_timestamp ("wire_transfer_deadline",
+ dcd->wire_deadline));
+ GNUNET_assert (NULL != deposit_obj);
+ eh = TALER_EXCHANGE_curl_easy_get_ (dh->url);
+ if ( (NULL == eh) ||
+ (GNUNET_OK !=
+ TALER_curl_easy_post (&dh->ctx,
+ eh,
+ deposit_obj)) )
+ {
+ *ec = TALER_EC_GENERIC_CURL_ALLOCATION_FAILURE;
+ GNUNET_break (0);
+ if (NULL != eh)
+ curl_easy_cleanup (eh);
+ json_decref (deposit_obj);
+ GNUNET_free (dh->cdds);
+ GNUNET_free (dh->url);
+ GNUNET_free (dh);
+ return NULL;
+ }
+ json_decref (deposit_obj);
+ GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+ "URL for deposit: `%s'\n",
+ dh->url);
+ ctx = TEAH_handle_to_context (exchange);
+ dh->job = GNUNET_CURL_job_add2 (ctx,
+ eh,
+ dh->ctx.headers,
+ &handle_deposit_finished,
+ dh);
+ return dh;
+}
+
+
+void
+TALER_EXCHANGE_batch_deposit_force_dc (struct
+ TALER_EXCHANGE_BatchDepositHandle *
+ deposit)
+{
+ deposit->auditor_chance = 1;
+}
+
+
+void
+TALER_EXCHANGE_batch_deposit_cancel (struct
+ TALER_EXCHANGE_BatchDepositHandle *deposit)
+{
+ if (NULL != deposit->job)
+ {
+ GNUNET_CURL_job_cancel (deposit->job);
+ deposit->job = NULL;
+ }
+ GNUNET_free (deposit->url);
+ GNUNET_free (deposit->cdds);
+ GNUNET_free (deposit->exchange_sigs);
+ TALER_curl_easy_post_finished (&deposit->ctx);
+ GNUNET_free (deposit);
+}
+
+
+/* end of exchange_api_batch_deposit.c */
diff --git a/src/lib/exchange_api_common.c b/src/lib/exchange_api_common.c
index 26ddb3c06..739b215f6 100644
--- a/src/lib/exchange_api_common.c
+++ b/src/lib/exchange_api_common.c
@@ -1946,4 +1946,66 @@ TALER_EXCHANGE_get_min_denomination_ (
}
+enum GNUNET_GenericReturnValue
+TALER_EXCHANGE_verify_deposit_signature_ (
+ const struct TALER_EXCHANGE_DepositContractDetail *dcd,
+ const struct TALER_ExtensionContractHashP *ech,
+ const struct TALER_MerchantWireHashP *h_wire,
+ const struct TALER_EXCHANGE_CoinDepositDetail *cdd,
+ const struct TALER_EXCHANGE_DenomPublicKey *dki)
+{
+ if (GNUNET_OK !=
+ TALER_wallet_deposit_verify (&cdd->amount,
+ &dki->fees.deposit,
+ h_wire,
+ &dcd->h_contract_terms,
+ &cdd->h_age_commitment,
+ ech,
+ &cdd->h_denom_pub,
+ dcd->timestamp,
+ &dcd->merchant_pub,
+ dcd->refund_deadline,
+ &cdd->coin_pub,
+ &cdd->coin_sig))
+ {
+ GNUNET_break_op (0);
+ TALER_LOG_WARNING ("Invalid coin signature on /deposit request!\n");
+ TALER_LOG_DEBUG ("... amount_with_fee was %s\n",
+ TALER_amount2s (&cdd->amount));
+ TALER_LOG_DEBUG ("... deposit_fee was %s\n",
+ TALER_amount2s (&dki->fees.deposit));
+ return GNUNET_SYSERR;
+ }
+
+ /* check coin signature */
+ {
+ struct TALER_CoinPublicInfo coin_info = {
+ .coin_pub = cdd->coin_pub,
+ .denom_pub_hash = cdd->h_denom_pub,
+ .denom_sig = cdd->denom_sig,
+ .h_age_commitment = cdd->h_age_commitment,
+ };
+
+ if (GNUNET_YES !=
+ TALER_test_coin_valid (&coin_info,
+ &dki->key))
+ {
+ GNUNET_break_op (0);
+ TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
+ return GNUNET_SYSERR;
+ }
+ }
+
+ /* Check coin does make a contribution */
+ if (0 < TALER_amount_cmp (&dki->fees.deposit,
+ &cdd->amount))
+ {
+ GNUNET_break_op (0);
+ TALER_LOG_WARNING ("Deposit amount smaller than fee\n");
+ return GNUNET_SYSERR;
+ }
+ return GNUNET_OK;
+}
+
+
/* end of exchange_api_common.c */
diff --git a/src/lib/exchange_api_common.h b/src/lib/exchange_api_common.h
index f4737ca98..a75ed3ed2 100644
--- a/src/lib/exchange_api_common.h
+++ b/src/lib/exchange_api_common.h
@@ -198,4 +198,24 @@ TALER_EXCHANGE_get_min_denomination_ (
const struct TALER_EXCHANGE_Keys *keys,
struct TALER_Amount *min);
+
+/**
+ * Verify signature information about the deposit.
+ *
+ * @param dcd contract details
+ * @param ech hashed contract (passed to avoid recomputation)
+ * @param h_wire hashed wire details (passed to avoid recomputation)
+ * @param cdd coin-specific details
+ * @param dki denomination of the coin
+ * @return #GNUNET_OK if signatures are OK, #GNUNET_SYSERR if not
+ */
+enum GNUNET_GenericReturnValue
+TALER_EXCHANGE_verify_deposit_signature_ (
+ const struct TALER_EXCHANGE_DepositContractDetail *dcd,
+ const struct TALER_ExtensionContractHashP *ech,
+ const struct TALER_MerchantWireHashP *h_wire,
+ const struct TALER_EXCHANGE_CoinDepositDetail *cdd,
+ const struct TALER_EXCHANGE_DenomPublicKey *dki);
+
+
#endif
diff --git a/src/lib/exchange_api_deposit.c b/src/lib/exchange_api_deposit.c
index 7e8246170..329643413 100644
--- a/src/lib/exchange_api_deposit.c
+++ b/src/lib/exchange_api_deposit.c
@@ -378,77 +378,6 @@ handle_deposit_finished (void *cls,
}
-/**
- * Verify signature information about the deposit.
- *
- * @param dcd contract details
- * @param ech hashed contract (passed to avoid recomputation)
- * @param h_wire hashed wire details (passed to avoid recomputation)
- * @param cdd coin-specific details
- * @param dki denomination of the coin
- * @return #GNUNET_OK if signatures are OK, #GNUNET_SYSERR if not
- */
-static enum GNUNET_GenericReturnValue
-verify_signatures (const struct TALER_EXCHANGE_DepositContractDetail *dcd,
- const struct TALER_ExtensionContractHashP *ech,
- const struct TALER_MerchantWireHashP *h_wire,
- const struct TALER_EXCHANGE_CoinDepositDetail *cdd,
- const struct TALER_EXCHANGE_DenomPublicKey *dki)
-{
- if (GNUNET_OK !=
- TALER_wallet_deposit_verify (&cdd->amount,
- &dki->fees.deposit,
- h_wire,
- &dcd->h_contract_terms,
- &cdd->h_age_commitment,
- ech,
- &cdd->h_denom_pub,
- dcd->timestamp,
- &dcd->merchant_pub,
- dcd->refund_deadline,
- &cdd->coin_pub,
- &cdd->coin_sig))
- {
- GNUNET_break_op (0);
- TALER_LOG_WARNING ("Invalid coin signature on /deposit request!\n");
- TALER_LOG_DEBUG ("... amount_with_fee was %s\n",
- TALER_amount2s (&cdd->amount));
- TALER_LOG_DEBUG ("... deposit_fee was %s\n",
- TALER_amount2s (&dki->fees.deposit));
- return GNUNET_SYSERR;
- }
-
- /* check coin signature */
- {
- struct TALER_CoinPublicInfo coin_info = {
- .coin_pub = cdd->coin_pub,
- .denom_pub_hash = cdd->h_denom_pub,
- .denom_sig = cdd->denom_sig,
- .h_age_commitment = cdd->h_age_commitment,
- };
-
- if (GNUNET_YES !=
- TALER_test_coin_valid (&coin_info,
- &dki->key))
- {
- GNUNET_break_op (0);
- TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
- return GNUNET_SYSERR;
- }
- }
-
- /* Check coin does make a contribution */
- if (0 < TALER_amount_cmp (&dki->fees.deposit,
- &cdd->amount))
- {
- GNUNET_break_op (0);
- TALER_LOG_WARNING ("Deposit amount smaller than fee\n");
- return GNUNET_SYSERR;
- }
- return GNUNET_OK;
-}
-
-
struct TALER_EXCHANGE_DepositHandle *
TALER_EXCHANGE_deposit (
struct TALER_EXCHANGE_Handle *exchange,
@@ -526,11 +455,11 @@ TALER_EXCHANGE_deposit (
&dcd->wire_salt,
&dh->h_wire);
if (GNUNET_OK !=
- verify_signatures (dcd,
- &dh->h_extensions,
- &dh->h_wire,
- cdd,
- dki))
+ TALER_EXCHANGE_verify_deposit_signature_ (dcd,
+ &dh->h_extensions,
+ &dh->h_wire,
+ cdd,
+ dki))
{
*ec = TALER_EC_EXCHANGE_DEPOSIT_COIN_SIGNATURE_INVALID;
GNUNET_break_op (0);
diff --git a/src/lib/exchange_api_handle.c b/src/lib/exchange_api_handle.c
index 3cdc8ad29..488a419be 100644
--- a/src/lib/exchange_api_handle.c
+++ b/src/lib/exchange_api_handle.c
@@ -992,7 +992,7 @@ decode_keys_json (const json_t *resp_obj,
check_sig,
denom_key_obj,
&key_data->master_pub,
- check_sig ? &hash_xor: NULL));
+ check_sig ? &hash_xor : NULL));
// Build the running xor of the SHA512-hash of the public keys
{
diff --git a/src/lib/exchange_api_purse_create_with_deposit.c b/src/lib/exchange_api_purse_create_with_deposit.c
index 3a5b7df59..ce0221aa6 100644
--- a/src/lib/exchange_api_purse_create_with_deposit.c
+++ b/src/lib/exchange_api_purse_create_with_deposit.c
@@ -680,8 +680,8 @@ TALER_EXCHANGE_purse_create_with_deposit (
GNUNET_JSON_pack_allow_null (
TALER_JSON_pack_econtract ("econtract",
upload_contract
- ? &pch->econtract
- : NULL)),
+ ? &pch->econtract
+ : NULL)),
GNUNET_JSON_pack_data_auto ("purse_sig",
&pch->purse_sig),
GNUNET_JSON_pack_data_auto ("merge_pub",
diff --git a/src/lib/exchange_api_purse_create_with_merge.c b/src/lib/exchange_api_purse_create_with_merge.c
index 2b4f1cd27..f3c72d4f7 100644
--- a/src/lib/exchange_api_purse_create_with_merge.c
+++ b/src/lib/exchange_api_purse_create_with_merge.c
@@ -478,8 +478,8 @@ TALER_EXCHANGE_purse_create_with_merge (
GNUNET_JSON_pack_allow_null (
TALER_JSON_pack_econtract ("econtract",
upload_contract
- ? &pcm->econtract
- : NULL)),
+ ? &pcm->econtract
+ : NULL)),
GNUNET_JSON_pack_allow_null (
pay_for_purse
? TALER_JSON_pack_amount ("purse_fee",
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-25 06:13:54 +0000