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authorChristian Grothoff <christian@grothoff.org>2020-06-27 18:49:12 +0200
committerChristian Grothoff <christian@grothoff.org>2020-07-05 16:50:15 +0200
commitb0311807ff8c7702a87b99da1e21a963eb280633 (patch)
treebddcdd2f049f4190ac5dfe523ac6a91fa344bdf0 /src/lib/exchange_api_deposit.c
parentc88af6df724a47919fd8b0fc1d25f1273120c4e6 (diff)
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fix FIXME by exposing deposit permission signing in API instead of doing it inside of the testing logic
Diffstat (limited to 'src/lib/exchange_api_deposit.c')
-rw-r--r--src/lib/exchange_api_deposit.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/lib/exchange_api_deposit.c b/src/lib/exchange_api_deposit.c
index 27605365..351fa7a1 100644
--- a/src/lib/exchange_api_deposit.c
+++ b/src/lib/exchange_api_deposit.c
@@ -491,6 +491,59 @@ verify_signatures (const struct TALER_EXCHANGE_DenomPublicKey *dki,
/**
+ * Sign a deposit permission. Function for wallets.
+ *
+ * @param amount the amount to be deposited
+ * @param deposit_fee the deposit fee we expect to pay
+ * @param h_wire hash of the merchant’s account details
+ * @param h_contract_terms hash of the contact of the merchant with the customer (further details are never disclosed to the exchange)
+ * @param coin_priv coin’s private key
+ * @param wallet_timestamp timestamp when the contract was finalized, must not be too far in the future
+ * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
+ * @param refund_deadline date until which the merchant can issue a refund to the customer via the exchange (can be zero if refunds are not allowed); must not be after the @a wire_deadline
+ * @param[out] coin_sig set to the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT
+ */
+void
+TALER_EXCHANGE_deposit_permission_sign (
+ const struct TALER_Amount *amount,
+ const struct TALER_Amount *deposit_fee,
+ const struct GNUNET_HashCode *h_wire,
+ const struct GNUNET_HashCode *h_contract_terms,
+ const struct TALER_CoinSpendPrivateKeyP *coin_priv,
+ struct GNUNET_TIME_Absolute wallet_timestamp,
+ const struct TALER_MerchantPublicKeyP *merchant_pub,
+ struct GNUNET_TIME_Absolute refund_deadline,
+ struct TALER_CoinSpendSignatureP *coin_sig)
+{
+ struct TALER_DepositRequestPS dr = {
+ .purpose.size = htonl
+ (sizeof (dr)),
+ .purpose.purpose = htonl
+ (TALER_SIGNATURE_WALLET_COIN_DEPOSIT),
+ .h_contract_terms = *h_contract_terms,
+ .h_wire = *h_wire,
+ .wallet_timestamp = GNUNET_TIME_absolute_hton (wallet_timestamp),
+ .refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline),
+ .merchant = *merchant_pub
+ };
+
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_TIME_round_abs (&wallet_timestamp));
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_TIME_round_abs (&refund_deadline));
+ GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
+ &dr.coin_pub.eddsa_pub);
+ TALER_amount_hton (&dr.amount_with_fee,
+ amount);
+ TALER_amount_hton (&dr.deposit_fee,
+ deposit_fee);
+ GNUNET_CRYPTO_eddsa_sign (&coin_priv->eddsa_priv,
+ &dr,
+ &coin_sig->eddsa_signature);
+}
+
+
+/**
* Submit a deposit permission to the exchange and get the exchange's response.
* Note that while we return the response verbatim to the caller for
* further processing, we do already verify that the response is