[taler-exchange] branch master updated: introduce sets for wire fees and global fees

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grothoff pushed a commit to branch master
in repository exchange.

The following commit(s) were added to refs/heads/master by this push:
     new 4835ddf6 introduce sets for wire fees and global fees
4835ddf6 is described below

commit 4835ddf60b80a720657d42e2de57a79f258328cd
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Sat Mar 5 11:56:58 2022 +0100

    introduce sets for wire fees and global fees
---
 src/include/taler_crypto_lib.h | 146 +++++++++++++++++++++++++++++++++++++++++
 src/util/config.c              |  15 ++++-
 src/util/util.c                |  48 ++++++++++++++
 3 files changed, 208 insertions(+), 1 deletion(-)

diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index c23de357..d81f5a71 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -647,6 +647,57 @@ struct TALER_DenomFeeSetNBOP
 };
 
 
+/**
+ * Set of the fees applying for a given
+ * time-range and wire method.
+ */
+struct TALER_WireFeeSetNBOP
+{
+
+  /**
+   * The fee the exchange charges for wiring funds
+   * to a merchant.
+   */
+  struct TALER_AmountNBO wire;
+
+  /**
+   * The fee the exchange charges for closing a reserve
+   * and wiring the funds back to the origin account.
+   */
+  struct TALER_AmountNBO closing;
+
+  /**
+   * The fee the exchange charges for cross-exchange
+   * P2P payments.
+   */
+  struct TALER_AmountNBO wad;
+
+};
+
+
+/**
+ * Set of the fees applying globally for a given
+ * time-range.
+ */
+struct TALER_GlobalFeeSetNBOP
+{
+
+  /**
+   * The fee the exchange charges for returning the
+   * history of a reserve or account.
+   */
+  struct TALER_AmountNBO history;
+
+  /**
+   * The fee the exchange charges for performing a
+   * KYC check on a reserve to turn it into an account
+   * that can be used for P2P payments.
+   */
+  struct TALER_AmountNBO kyc;
+
+};
+
+
 GNUNET_NETWORK_STRUCT_END
 
 
@@ -684,6 +735,57 @@ struct TALER_DenomFeeSet
 };
 
 
+/**
+ * Set of the fees applying for a given
+ * time-range and wire method.
+ */
+struct TALER_WireFeeSet
+{
+
+  /**
+   * The fee the exchange charges for wiring funds
+   * to a merchant.
+   */
+  struct TALER_Amount wire;
+
+  /**
+   * The fee the exchange charges for closing a reserve
+   * and wiring the funds back to the origin account.
+   */
+  struct TALER_Amount closing;
+
+  /**
+   * The fee the exchange charges for cross-exchange
+   * P2P payments.
+   */
+  struct TALER_Amount wad;
+
+};
+
+
+/**
+ * Set of the fees applying globally for a given
+ * time-range.
+ */
+struct TALER_GlobalFeeSet
+{
+
+  /**
+   * The fee the exchange charges for returning the
+   * history of a reserve or account.
+   */
+  struct TALER_Amount history;
+
+  /**
+   * The fee the exchange charges for performing a
+   * KYC check on a reserve to turn it into an account
+   * that can be used for P2P payments.
+   */
+  struct TALER_Amount kyc;
+
+};
+
+
 /**
  * Convert fee set from host to network byte order.
  *
@@ -706,6 +808,50 @@ TALER_denom_fee_set_ntoh (struct TALER_DenomFeeSet *fees,
                           const struct TALER_DenomFeeSetNBOP *nbo);
 
 
+/**
+ * Convert global fee set from host to network byte order.
+ *
+ * @param[out] nbo where to write the result
+ * @param fees fee set to convert
+ */
+void
+TALER_global_fee_set_hton (struct TALER_GlobalFeeSetNBOP *nbo,
+                           const struct TALER_GlobalFeeSet *fees);
+
+
+/**
+ * Convert global fee set from network to host network byte order.
+ *
+ * @param[out] fees where to write the result
+ * @param nbo fee set to convert
+ */
+void
+TALER_global_fee_set_ntoh (struct TALER_GlobalFeeSet *fees,
+                           const struct TALER_GlobalFeeSetNBOP *nbo);
+
+
+/**
+ * Convert wire fee set from host to network byte order.
+ *
+ * @param[out] nbo where to write the result
+ * @param fees fee set to convert
+ */
+void
+TALER_wire_fee_set_hton (struct TALER_WireFeeSetNBOP *nbo,
+                         const struct TALER_WireFeeSet *fees);
+
+
+/**
+ * Convert wire fee set from network to host network byte order.
+ *
+ * @param[out] fees where to write the result
+ * @param nbo fee set to convert
+ */
+void
+TALER_wire_fee_set_ntoh (struct TALER_WireFeeSet *fees,
+                         const struct TALER_WireFeeSetNBOP *nbo);
+
+
 /**
  * Hash @a rsa.
  *
diff --git a/src/util/config.c b/src/util/config.c
index dc342fdc..c0079246 100644
--- a/src/util/config.c
+++ b/src/util/config.c
@@ -130,6 +130,8 @@ enum GNUNET_GenericReturnValue
 TALER_config_get_currency (const struct GNUNET_CONFIGURATION_Handle *cfg,
                            char **currency)
 {
+  size_t slen;
+
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_string (cfg,
                                              "taler",
@@ -141,7 +143,8 @@ TALER_config_get_currency (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
                                "CURRENCY");
     return GNUNET_SYSERR;
   }
-  if (strlen (*currency) >= TALER_CURRENCY_LEN)
+  slen = strlen (*currency);
+  if (slen >= TALER_CURRENCY_LEN)
   {
     GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
                 "Currency `%s' longer than the allowed limit of %u 
characters.",
@@ -151,5 +154,15 @@ TALER_config_get_currency (const struct 
GNUNET_CONFIGURATION_Handle *cfg,
     *currency = NULL;
     return GNUNET_SYSERR;
   }
+  for (size_t i = 0; i<slen; i++)
+    if (! isalpha ((unsigned char) (*currency)[i]))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Currency `%s' must only use characters from the A-Z range.",
+                  *currency);
+      GNUNET_free (*currency);
+      *currency = NULL;
+      return GNUNET_SYSERR;
+    }
   return GNUNET_OK;
 }
diff --git a/src/util/util.c b/src/util/util.c
index 5b7181a1..6dfd6557 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -76,6 +76,54 @@ TALER_denom_fee_set_ntoh (struct TALER_DenomFeeSet *fees,
 }
 
 
+void
+TALER_global_fee_set_hton (struct TALER_GlobalFeeSetNBOP *nbo,
+                           const struct TALER_GlobalFeeSet *fees)
+{
+  TALER_amount_hton (&nbo->history,
+                     &fees->history);
+  TALER_amount_hton (&nbo->kyc,
+                     &fees->kyc);
+}
+
+
+void
+TALER_global_fee_set_ntoh (struct TALER_GlobalFeeSet *fees,
+                           const struct TALER_GlobalFeeSetNBOP *nbo)
+{
+  TALER_amount_ntoh (&fees->history,
+                     &nbo->history);
+  TALER_amount_ntoh (&fees->kyc,
+                     &nbo->kyc);
+}
+
+
+void
+TALER_wire_fee_set_hton (struct TALER_WireFeeSetNBOP *nbo,
+                         const struct TALER_WireFeeSet *fees)
+{
+  TALER_amount_hton (&nbo->wire,
+                     &fees->wire);
+  TALER_amount_hton (&nbo->closing,
+                     &fees->closing);
+  TALER_amount_hton (&nbo->wad,
+                     &fees->wad);
+}
+
+
+void
+TALER_wire_fee_set_ntoh (struct TALER_WireFeeSet *fees,
+                         const struct TALER_WireFeeSetNBOP *nbo)
+{
+  TALER_amount_ntoh (&fees->wire,
+                     &nbo->wire);
+  TALER_amount_ntoh (&fees->closing,
+                     &nbo->closing);
+  TALER_amount_ntoh (&fees->wad,
+                     &nbo->wad);
+}
+
+
 enum GNUNET_GenericReturnValue
 TALER_denom_fee_check_currency (
   const char *currency,

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