[taler-merchant] 99/277: more work on post /transfers and the like

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grothoff pushed a commit to branch master
in repository merchant.

commit 1c14e3319d3f82363a3bfd935410748eb8afb597
Author: Christian Grothoff <christian@grothoff.org>
AuthorDate: Thu May 7 20:14:02 2020 +0200

    more work on post /transfers and the like
---
 .../taler-merchant-httpd_post-orders-ID-pay.c      |   3 +
 .../taler-merchant-httpd_private-post-transfers.c  |  12 +-
 src/backenddb/merchant-0001.sql                    |   2 +-
 src/backenddb/plugin_merchantdb_postgres.c         | 177 ++++++++++++++++++++-
 src/include/taler_merchantdb_plugin.h              |   7 +-
 5 files changed, 187 insertions(+), 14 deletions(-)

diff --git a/src/backend/taler-merchant-httpd_post-orders-ID-pay.c 
b/src/backend/taler-merchant-httpd_post-orders-ID-pay.c
index d76965d..ca519a9 100644
--- a/src/backend/taler-merchant-httpd_post-orders-ID-pay.c
+++ b/src/backend/taler-merchant-httpd_post-orders-ID-pay.c
@@ -537,12 +537,14 @@ begin_transaction (struct PayContext *pc);
  *   that no other confirmations are on the way, and can pack a response
  *   for the wallet
  * @param hr HTTP response code details
+ * @param deposit_timestamp time when the exchange generated the deposit 
confirmation
  * @param exchange_sig signature from the exchange over the deposit 
confirmation
  * @param exchange_pub_key which key did the exchange use to create the @a 
exchange_sig
  */
 static void
 deposit_cb (void *cls,
             const struct TALER_EXCHANGE_HttpResponse *hr,
+            struct GNUNET_TIME_Absolute deposit_timestamp,
             const struct TALER_ExchangeSignatureP *exchange_sig,
             const struct TALER_ExchangePublicKeyP *exchange_pub)
 {
@@ -643,6 +645,7 @@ deposit_cb (void *cls,
   TMH_db->preflight (TMH_db->cls);
   qs = TMH_db->insert_deposit (TMH_db->cls,
                                pc->hc->instance->settings.id,
+                               deposit_timestamp,
                                &pc->h_contract_terms,
                                &dc->coin_pub,
                                dc->exchange_url,
diff --git a/src/backend/taler-merchant-httpd_private-post-transfers.c 
b/src/backend/taler-merchant-httpd_private-post-transfers.c
index d78746c..29e5997 100644
--- a/src/backend/taler-merchant-httpd_private-post-transfers.c
+++ b/src/backend/taler-merchant-httpd_private-post-transfers.c
@@ -261,7 +261,6 @@ transfer_cleanup (void *cls)
  *
  * @param cls closure with our `struct PostTransfersContext *`
  * @param transaction_id of the contract
- * @param coin_pub public key of the coin
  * @param exchange_url URL of the exchange that issued @a coin_pub
  * @param amount_with_fee amount the exchange will transfer for this coin
  * @param deposit_fee fee the exchange will charge for this coin
@@ -270,14 +269,17 @@ transfer_cleanup (void *cls)
  */
 static void
 check_transfer (void *cls,
-                const struct GNUNET_HashCode *h_contract_terms,
-                const struct TALER_CoinSpendPublicKeyP *coin_pub,
                 const char *exchange_url,
                 const struct TALER_Amount *amount_with_fee,
                 const struct TALER_Amount *deposit_fee,
                 const struct TALER_Amount *refund_fee,
                 const struct TALER_Amount *wire_fee,
-                const json_t *exchange_proof)
+                const struct GNUNET_HashCode *h_wire,
+                struct GNUNET_TIME_Absolute deposit_timestamp,
+                struct GNUNET_TIME_Absolute refund_deadline,
+                const struct TALER_ExchangeSignatureP *exchange_sig,
+                const struct TALER_ExchangePublicKeyP *exchange_pub);
+
 {
   struct PostTransfersContext *ptc = cls;
   const struct TALER_TrackTransferDetails *ttd = ptc->current_detail;
@@ -301,7 +303,7 @@ check_transfer (void *cls,
           "hint", "disagreement about deposit valuation",
           "exchange_deposit_proof", exchange_proof,
           "conflict_offset", (json_int_t) ptc->current_offset,
-          "coin_pub", GNUNET_JSON_from_data_auto (coin_pub),
+          "coin_pub", GNUNET_JSON_from_data_auto (&ttd->coin_pub),
           "h_contract_terms", GNUNET_JSON_from_data_auto (
             &ttd->h_contract_terms),
           "amount_with_fee", TALER_JSON_from_amount (amount_with_fee),
diff --git a/src/backenddb/merchant-0001.sql b/src/backenddb/merchant-0001.sql
index 55cef42..754b47f 100644
--- a/src/backenddb/merchant-0001.sql
+++ b/src/backenddb/merchant-0001.sql
@@ -302,7 +302,7 @@ COMMENT ON TABLE merchant_deposits
 COMMENT ON COLUMN merchant_deposits.signkey_serial
   IS 'Online signing key of the exchange on the deposit confirmation';
 COMMENT ON COLUMN merchant_deposits.deposit_timestamp
-  IS 'Time when we received the deposit confirmation from the exchange (not 
rounded)';
+  IS 'Time when the exchange generated the deposit confirmation';
 COMMENT ON COLUMN merchant_deposits.exchange_sig
   IS 'Signature of the exchange over the deposit confirmation';
 COMMENT ON COLUMN merchant_deposits.wire_fee_val
diff --git a/src/backenddb/plugin_merchantdb_postgres.c 
b/src/backenddb/plugin_merchantdb_postgres.c
index acb32e9..60cbc7a 100644
--- a/src/backenddb/plugin_merchantdb_postgres.c
+++ b/src/backenddb/plugin_merchantdb_postgres.c
@@ -1683,6 +1683,7 @@ postgres_insert_exchange_signkey (
  *
  * @param cls closure
  * @param instance_id instance to lookup deposits for
+ * @param deposit_timestamp time when the exchange generated the deposit 
confirmation
  * @param h_contract_terms proposal data's hashcode
  * @param coin_pub public key of the coin
  * @param exchange_url URL of the exchange that issued @a coin_pub
@@ -1698,6 +1699,7 @@ postgres_insert_exchange_signkey (
 static enum GNUNET_DB_QueryStatus
 postgres_insert_deposit (void *cls,
                          const char *instance_id,
+                         struct GNUNET_TIME_Absolute deposit_timestamp,
                          const struct GNUNET_HashCode *h_contract_terms,
                          const struct TALER_CoinSpendPublicKeyP *coin_pub,
                          const char *exchange_url,
@@ -1710,11 +1712,10 @@ postgres_insert_deposit (void *cls,
                          const struct TALER_ExchangePublicKeyP *exchange_pub)
 {
   struct PostgresClosure *pg = cls;
-  struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
   struct GNUNET_PQ_QueryParam params[] = {
     GNUNET_PQ_query_param_string (instance_id),
     GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
-    GNUNET_PQ_query_param_absolute_time (&now), /* $3 */
+    GNUNET_PQ_query_param_absolute_time (&deposit_timestamp), /* $3 */
     GNUNET_PQ_query_param_auto_from_type (coin_pub),
     GNUNET_PQ_query_param_string (exchange_url),
     TALER_PQ_query_param_amount (amount_with_fee), /* $6/$7 */
@@ -2557,7 +2558,7 @@ postgres_lookup_refunds_detailed (
 {
   struct PostgresClosure *pg = cls;
   struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (instance_id),
+    GNUNET_PQ_query_param_string (instance_id),
     GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
     GNUNET_PQ_query_param_end
   };
@@ -2960,6 +2961,173 @@ postgres_lookup_wire_fee (void *cls,
 }
 
 
+/**
+ * Closure for #lookup_deposits_by_contract_and_coin_cb().
+ */
+struct LookupDepositsByCnCContext
+{
+  /**
+   * Function to call for each deposit.
+   */
+  TALER_MERCHANTDB_CoinDepositCallback cb;
+
+  /**
+   * Closure for @e cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Plugin context.
+   */
+  struct PostgresClosure *pg;
+
+  /**
+   * Transaction result.
+   */
+  enum GNUNET_DB_QueryStatus qs;
+};
+
+
+/**
+ * Function to be called with the results of a SELECT statement
+ * that has returned @a num_results results.
+ *
+ * @param cls of type `struct LookupDepositsByCnCContext *`
+ * @param result the postgres result
+ * @param num_result the number of results in @a result
+ */
+static void
+lookup_deposits_by_contract_and_coin_cb (void *cls,
+                                         PGresult *result,
+                                         unsigned int num_results)
+{
+  struct LookupDepositsByCnCContext *ldcc = cls;
+  struct PostgresClosure *pg = ldcc->pg;
+
+  for (unsigned int i = 0; i<num_results; i++)
+  {
+    // WIP!
+    uint64_t refund_serial;
+    struct GNUNET_TIME_Absolute timestamp;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    uint64_t rtransaction_id;
+    struct TALER_Amount refund_amount;
+    char *reason;
+    char *exchange_url;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint64 ("refund_serial",
+                                    &refund_serial),
+      GNUNET_PQ_result_spec_absolute_time ("refund_timestamp",
+                                           &timestamp),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
+                                            &coin_pub),
+      GNUNET_PQ_result_spec_string ("exchange_url",
+                                    &exchange_url),
+      GNUNET_PQ_result_spec_uint64 ("rtransaction_id",
+                                    &rtransaction_id),
+      GNUNET_PQ_result_spec_string ("reason",
+                                    &reason),
+      TALER_PQ_RESULT_SPEC_AMOUNT ("refund_amount",
+                                   &refund_amount),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                  rs,
+                                  i))
+    {
+      GNUNET_break (0);
+      lrdc->qs = GNUNET_DB_STATUS_HARD_ERROR;
+      return;
+    }
+    ldcc->qs = i + 1;
+    ldcc->rc (ldcc->rc_cls,
+              ...);
+    GNUNET_PQ_cleanup_result (rs);
+  }
+}
+
+
+/**
+ * Lookup information about coin payments by @a h_contract_terms and
+ * @a coin_pub.
+ *
+ * @param cls closure
+ * @param instance_id instance to lookup payments for
+ * @param h_contract_terms proposal data's hashcode
+ * @param coin_pub public key to use for the search
+ * @param cb function to call with payment data
+ * @param cb_cls closure for @a cb
+ * @return transaction status
+ */
+static enum GNUNET_DB_QueryStatus
+postgres_lookup_deposits_by_contract_and_coin (
+  void *cls,
+  const char *instance_id,
+  const struct GNUNET_HashCode *h_contract_terms,
+  const struct TALER_CoinSpendPublicKeyP *coin_pub,
+  TALER_MERCHANTDB_CoinDepositCallback cb,
+  void *cb_cls)
+{
+  struct PostgresClosure *pg = cls;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_string_type (instance_id),
+    GNUNET_PQ_query_param_auto_from_type (h_contract_terms),
+    GNUNET_PQ_query_param_auto_from_type (coin_pub),
+    GNUNET_PQ_query_param_end
+  };
+  struct LookupDepositsByCnCContext ldcc = {
+    .cb  = cb,
+    .cb_cls = cb_cls,
+    .pg = pg
+  };
+  enum GNUNET_DB_QueryStatus qs;
+
+  check_connection (pg);
+  qs = GNUNET_PQ_eval_prepared_multi_select (pg->conn,
+                                             
"lookup_deposits_by_contract_and_coin",
+                                             params,
+                                             &
+                                             
lookup_deposits_by_contract_and_coin_cb,
+                                             &ldcc);
+  if (0 >= qs)
+    return qs;
+  return ldcc.qs;
+}
+
+
+/**
+ * Lookup transfer details.
+ *
+ * @param cls closure
+ * @param instance_id instance to lookup payments for
+ * @param exchange_url
+ * @param payto_uri
+ * @param wtid
+ * @param total_amount
+ * @param wire_fee
+ * @param execution_time
+ * @param cb function to call with detailed transfer data
+ * @param cb_cls closure for @a cb
+ * @return transaction status
+ */
+static enum GNUNET_DB_QueryStatus
+postgres_lookup_transfer_details (
+  void *cls,
+  const char *instance_id,
+  const char *exchange_url,
+  const char *payto_uri,
+  const struct TALER_WireTransferIdentifierRawP *wtid,
+  const struct TALER_Amount *total_amount,
+  const struct TALER_Amount *wire_fee,
+  struct GNUNET_TIME_Absolute execution_time,
+  TALER_MERCHANTDB_TransferDetailsCallback cb,
+  void *cb_cls)
+{
+}
+
+
 /* ********************* OLD API ************************** */
 
 /**
@@ -6181,6 +6349,9 @@ libtaler_plugin_merchantdb_postgres_init (void *cls)
   plugin->lookup_account = &postgres_lookup_account;
   plugin->insert_transfer_details = &postgres_insert_transfer_details;
   plugin->lookup_wire_fee = &postgres_lookup_wire_fee;
+  plugin->lookup_deposits_by_contract_and_coin =
+    &postgres_lookup_deposits_by_contract_and_coin;
+  plugin->lookup_transfer_details = &postgres_lookup_transfer_details;
 
 /* OLD API: */
   plugin->store_coin_to_transfer = &postgres_store_coin_to_transfer;
diff --git a/src/include/taler_merchantdb_plugin.h 
b/src/include/taler_merchantdb_plugin.h
index 51d48dc..1101e77 100644
--- a/src/include/taler_merchantdb_plugin.h
+++ b/src/include/taler_merchantdb_plugin.h
@@ -453,8 +453,6 @@ typedef void
  * Function called with information about a coin that was deposited.
  *
  * @param cls closure
- * @param h_contract_terms proposal data's hashcode
- * @param coin_pub public key of the coin
  * @param exchange_url URL of the exchange that issued the coin
  * @param amount_with_fee amount the exchange will deposit for this coin
  * @param deposit_fee fee the exchange will charge for this coin
@@ -466,8 +464,6 @@ typedef void
 typedef void
 (*TALER_MERCHANTDB_CoinDepositCallback)(
   void *cls,
-  const struct GNUNET_HashCode *h_contract_terms,
-  const struct TALER_CoinSpendPublicKeyP *coin_pub,
   const char *exchange_url,
   const struct TALER_Amount *amount_with_fee,
   const struct TALER_Amount *deposit_fee,
@@ -1012,6 +1008,7 @@ struct TALER_MERCHANTDB_Plugin
    *
    * @param cls closure
    * @param instance_id instance to lookup deposits for
+   * @param deposit_timestamp time when the exchange generated the deposit 
confirmation
    * @param h_contract_terms proposal data's hashcode
    * @param coin_pub public key of the coin
    * @param exchange_url URL of the exchange that issued @a coin_pub
@@ -1026,6 +1023,7 @@ struct TALER_MERCHANTDB_Plugin
   enum GNUNET_DB_QueryStatus
   (*insert_deposit)(void *cls,
                     const char *instance_id,
+                    struct GNUNET_TIME_Absolute deposit_timestamp,
                     const struct GNUNET_HashCode *h_contract_terms,
                     const struct TALER_CoinSpendPublicKeyP *coin_pub,
                     const char *exchange_url,
@@ -1300,7 +1298,6 @@ struct TALER_MERCHANTDB_Plugin
                      struct TALER_MasterSignatureP *master_sig);
 
 
-  /* WIP: */
   /**
    * Lookup information about coin payments by @a h_contract_terms and
    * @a coin_pub.

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