avoid using struct Deposit in response

src/mint/mint.h

@@ -91,70 +91,6 @@ struct CollectableBlindcoin
 };
 
 
-/**
- * Specification for a /deposit operation.
- */
-struct Deposit
-{
-  /**
-   * Information about the coin that is being deposited.
-   */
-  struct TALER_CoinPublicInfo coin;
-
-  /**
-   * ECDSA signature affirming that the customer intends
-   * this coin to be deposited at the merchant identified
-   * by @e h_wire in relation to the contract identified
-   * by @e h_contract.
-   */
-  struct GNUNET_CRYPTO_EcdsaSignature csig;
-
-  /**
-   * Public key of the merchant.  Enables later identification
-   * of the merchant in case of a need to rollback transactions.
-   */
-  struct GNUNET_CRYPTO_EddsaPublicKey merchant_pub;
-
-  /**
-   * Hash over the contract between merchant and customer
-   * (remains unknown to the Mint).
-   */
-  struct GNUNET_HashCode h_contract;
-
-  /**
-   * Hash of the (canonical) representation of @e wire, used
-   * to check the signature on the request.  Generated by
-   * the mint from the detailed wire data provided by the
-   * merchant.
-   */
-  struct GNUNET_HashCode h_wire;
-
-  /**
-   * Detailed wire information for executing the transaction.
-   */
-  const json_t *wire;
-
-  /**
-   * Merchant-generated transaction ID to detect duplicate
-   * transactions.
-   */
-  uint64_t transaction_id;
-
-  /**
-   * Fraction of the coin's remaining value to be deposited.
-   * The coin is identified by @e coin_pub.
-   */
-  struct TALER_Amount amount;
-
-  /**
-   * Type of the deposit (also purpose of the signature).  Either
-   * #TALER_SIGNATURE_DEPOSIT or #TALER_SIGNATURE_INCREMENTAL_DEPOSIT.
-   */
-  uint32_t purpose; // FIXME: bad type, use ENUM!
-
-
-};
-
 
 
 

src/mint/mint_db.h

@@ -27,7 +27,6 @@
 #include <microhttpd.h>
 #include <gnunet/gnunet_util_lib.h>
 #include "taler_util.h"
-#include "taler-mint-httpd_db.h"
 #include "mint.h"
 
 
@@ -329,11 +328,79 @@ int
 TALER_MINT_DB_prepare_deposits (PGconn *db_conn);
 
 
+
+/**
+ * Specification for a /deposit operation.
+ */
+struct Deposit
+{
+  /**
+   * Information about the coin that is being deposited.
+   */
+  struct TALER_CoinPublicInfo coin;
+
+  /**
+   * ECDSA signature affirming that the customer intends
+   * this coin to be deposited at the merchant identified
+   * by @e h_wire in relation to the contract identified
+   * by @e h_contract.
+   */
+  struct GNUNET_CRYPTO_EcdsaSignature csig;
+
+  /**
+   * Public key of the merchant.  Enables later identification
+   * of the merchant in case of a need to rollback transactions.
+   */
+  struct GNUNET_CRYPTO_EddsaPublicKey merchant_pub;
+
+  /**
+   * Hash over the contract between merchant and customer
+   * (remains unknown to the Mint).
+   */
+  struct GNUNET_HashCode h_contract;
+
+  /**
+   * Hash of the (canonical) representation of @e wire, used
+   * to check the signature on the request.  Generated by
+   * the mint from the detailed wire data provided by the
+   * merchant.
+   */
+  struct GNUNET_HashCode h_wire;
+
+  /**
+   * Detailed wire information for executing the transaction.
+   */
+  const json_t *wire;
+
+  /**
+   * Merchant-generated transaction ID to detect duplicate
+   * transactions.
+   */
+  uint64_t transaction_id;
+
+  /**
+   * Fraction of the coin's remaining value to be deposited.
+   * The coin is identified by @e coin_pub.
+   */
+  struct TALER_Amount amount;
+
+  /**
+   * Type of the deposit (also purpose of the signature).  Either
+   * #TALER_SIGNATURE_DEPOSIT or #TALER_SIGNATURE_INCREMENTAL_DEPOSIT.
+   */
+  uint32_t purpose; // FIXME: bad type, use ENUM!
+
+
+};
+
+
 int
 TALER_MINT_DB_insert_deposit (PGconn *db_conn,
                               const struct Deposit *deposit);
 
 
+// FIXME: with fractional deposits, we need more than
+// just the coin key to lookup deposits...
 int
 TALER_MINT_DB_get_deposit (PGconn *db_conn,
                            const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
@@ -341,6 +408,8 @@ TALER_MINT_DB_get_deposit (PGconn *db_conn,
 
 
 
+
+
 /**
  * Get the thread-local database-handle.
  * Connect to the db if the connection does not exist yet.

src/mint/taler-mint-httpd_db.c

@@ -72,7 +72,13 @@ TALER_MINT_db_execute_deposit (struct MHD_Connection *connection,
     if (0 == memcmp (&existing_deposit,
                      deposit,
                      sizeof (struct Deposit)))
-      return TALER_MINT_reply_deposit_success (connection, deposit);
+      return TALER_MINT_reply_deposit_success (connection,
+                                               &deposit->coin.coin_pub,
+                                               &deposit->h_wire,
+                                               &deposit->h_contract,
+                                               deposit->transaction_id,
+                                               &deposit->merchant_pub,
+                                               &deposit->amount);
     // FIXME: in the future, check if there's enough credits
     // left on the coin. For now: refuse
     // FIXME: return more information here
@@ -136,7 +142,13 @@ TALER_MINT_db_execute_deposit (struct MHD_Connection *connection,
   }
   // FIXME: check commit return value!
   TALER_MINT_DB_commit (db_conn);
-  return TALER_MINT_reply_deposit_success (connection, deposit);
+  return TALER_MINT_reply_deposit_success (connection,
+                                           &deposit->coin.coin_pub,
+                                           &deposit->h_wire,
+                                           &deposit->h_contract,
+                                           deposit->transaction_id,
+                                           &deposit->merchant_pub,
+                                           &deposit->amount);
 }
 
 

src/mint/taler-mint-httpd_db.h

@@ -27,7 +27,7 @@
 #include "taler_util.h"
 #include "taler-mint-httpd_keys.h"
 #include "mint.h"
-
+#include "mint_db.h"
 
 
 /**

src/mint/taler-mint-httpd_responses.c

@@ -250,15 +250,30 @@ TALER_MINT_reply_invalid_json (struct MHD_Connection *connection)
 
 
 /**
- * Send confirmation of deposit success to client.
+ * Send confirmation of deposit success to client.  This function
+ * will create a signed message affirming the given information
+ * and return it to the client.  By this, the mint affirms that
+ * the coin had sufficient (residual) value for the specified
+ * transaction and that it will execute the requested deposit
+ * operation with the given wiring details.
  *
  * @param connection connection to the client
- * @param deposit deposit request to confirm
+ * @param coin_pub public key of the coin
+ * @param h_wire hash of wire details
+ * @param h_contract hash of contract details
+ * @param transaction_id transaction ID
+ * @param merchant merchant public key
+ * @param amount fraction of coin value to deposit
  * @return MHD result code
  */
 int
 TALER_MINT_reply_deposit_success (struct MHD_Connection *connection,
-                                  const struct Deposit *deposit)
+                                  const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
+                                  const struct GNUNET_HashCode *h_wire,
+                                  const struct GNUNET_HashCode *h_contract,
+                                  uint64_t transaction_id,
+                                  const struct GNUNET_CRYPTO_EddsaPublicKey *merchant,
+                                  const struct TALER_Amount *amount)
 {
   // FIXME: return more information here,
   // including in particular a signature over

src/mint/taler-mint-httpd_responses.h

@@ -145,15 +145,30 @@ TALER_MINT_reply_invalid_json (struct MHD_Connection *connection);
 
 
 /**
- * Send confirmation of deposit success to client.
+ * Send confirmation of deposit success to client. This function
+ * will create a signed message affirming the given information
+ * and return it to the client.  By this, the mint affirms that
+ * the coin had sufficient (residual) value for the specified
+ * transaction and that it will execute the requested deposit
+ * operation with the given wiring details.
  *
  * @param connection connection to the client
- * @param deposit deposit request to confirm
+ * @param coin_pub public key of the coin
+ * @param h_wire hash of wire details
+ * @param h_contract hash of contract details
+ * @param transaction_id transaction ID
+ * @param merchant merchant public key
+ * @param amount fraction of coin value to deposit
  * @return MHD result code
  */
 int
 TALER_MINT_reply_deposit_success (struct MHD_Connection *connection,
-                                  const struct Deposit *deposit);
+                                  const struct GNUNET_CRYPTO_EcdsaPublicKey *coin_pub,
+                                  const struct GNUNET_HashCode *h_wire,
+                                  const struct GNUNET_HashCode *h_contract,
+                                  uint64_t transaction_id,
+                                  const struct GNUNET_CRYPTO_EddsaPublicKey *merchant,
+                                  const struct TALER_Amount *amount);
 
 
 /**