WiP: age-withdraw, continue with finalize_age_withdraw_and_sign, 9/n

Also:

- added duplicate planchet check for age-withdraw_reveal
- added stubs for (get|insert)_age_withdraw_reveal

2 files changed, 151 insertions, 0 deletions

diff --git a/src/exchangedb/pg_insert_age_withdraw_reveal.c b/src/exchangedb/pg_insert_age_withdraw_reveal.c
new file mode 100644
index 000000000..336ed384f
--- /dev/null
+++ b/src/exchangedb/pg_insert_age_withdraw_reveal.c
@@ -0,0 +1,106 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2023 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 exchangedb/pg_insert_age_withdraw_reveal.c
+ * @brief Implementation of the insert_age_withdraw_reveal function for Postgres
+ * @author Özgür Kesim
+ */
+#include "platform.h"
+#include "taler_error_codes.h"
+#include "taler_dbevents.h"
+#include "taler_pq_lib.h"
+#include "pg_insert_refresh_reveal.h"
+#include "pg_helper.h"
+
+
+enum GNUNET_DB_QueryStatus
+TEH_PG_insert_age_withdraw_reveal (
+  void *cls,
+  /*TODO:oec*/
+  )
+{
+  struct PostgresClosure *pg = cls;
+
+  if (TALER_CNC_KAPPA != num_tprivs + 1)
+  {
+    GNUNET_break (0);
+    return GNUNET_DB_STATUS_HARD_ERROR;
+  }
+  /* TODO */
+#if 0
+  PREPARE (pg,
+           "insert_withdraw_age_revealed_coin",
+           "INSERT INTO withdraw_age_reveals "
+           "(h_commitment "
+           ",freshcoin_index "
+           ",denominations_serial "
+           ",h_coin_ev "
+           ",ev_sig"
+           ") SELECT $1, $2, $3, "
+           "         denominations_serial, $5, $6, $7, $8"
+           "    FROM denominations"
+           "   WHERE denom_pub_hash=$4"
+
+           " ON CONFLICT DO NOTHING;");
+  for (uint32_t i = 0; i<num_rrcs; i++)
+  {
+    const struct TALER_EXCHANGEDB_RefreshRevealedCoin *rrc = &rrcs[i];
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_uint64 (&melt_serial_id),
+      GNUNET_PQ_query_param_uint32 (&i),
+      GNUNET_PQ_query_param_auto_from_type (&rrc->orig_coin_link_sig),
+      GNUNET_PQ_query_param_auto_from_type (&rrc->h_denom_pub),
+      TALER_PQ_query_param_blinded_planchet (&rrc->blinded_planchet),
+      TALER_PQ_query_param_exchange_withdraw_values (&rrc->exchange_vals),
+      GNUNET_PQ_query_param_auto_from_type (&rrc->coin_envelope_hash),
+      TALER_PQ_query_param_blinded_denom_sig (&rrc->coin_sig),
+      GNUNET_PQ_query_param_end
+    };
+    enum GNUNET_DB_QueryStatus qs;
+
+    qs = GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                             "insert_refresh_revealed_coin",
+                                             params);
+    if (0 > qs)
+      return qs;
+  }
+
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_uint64 (&melt_serial_id),
+      GNUNET_PQ_query_param_auto_from_type (tp),
+      GNUNET_PQ_query_param_fixed_size (
+        tprivs,
+        num_tprivs * sizeof (struct TALER_TransferPrivateKeyP)),
+      GNUNET_PQ_query_param_end
+    };
+
+    /* Used in #postgres_insert_refresh_reveal() to store the transfer
+   keys we learned */
+    PREPARE (pg,
+             "insert_refresh_transfer_keys",
+             "INSERT INTO refresh_transfer_keys "
+             "(melt_serial_id"
+             ",transfer_pub"
+             ",transfer_privs"
+             ") VALUES ($1, $2, $3)"
+             " ON CONFLICT DO NOTHING;");
+    return GNUNET_PQ_eval_prepared_non_select (pg->conn,
+                                               "insert_refresh_transfer_keys",
+                                               params);
+  }
+#endif
+}
diff --git a/src/exchangedb/pg_insert_age_withdraw_reveal.h b/src/exchangedb/pg_insert_age_withdraw_reveal.h
new file mode 100644
index 000000000..a98ee4efa
--- /dev/null
+++ b/src/exchangedb/pg_insert_age_withdraw_reveal.h
@@ -0,0 +1,45 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2023 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 exchangedb/pg_insert_age_withdraw_reveal.h
+ * @brief implementation of the insert_age_withdraw_reveal function for Postgres
+ * @author Özgür Kesim
+ */
+#ifndef PG_INSERT_AGE_WITHDRAW_REVEAL_H
+#define PG_INSERT_AGE_WITHDRAW_REVEAL_H
+
+#include "taler_util.h"
+#include "taler_json_lib.h"
+#include "taler_exchangedb_plugin.h"
+/**
+ * Store in the database which coin(s) the wallet wanted to create
+ * in a given age-withdraw operation and all of the other information
+ * we learned or created in the /age-withdraw/reveal step.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param h_commitment The commitment of the original age-withdraw request
+ * @param num_coins The number of revealed coins
+ * @param revealed_coins The coins
+ * TODO:oec
+ * @return query status for the transaction
+ */
+enum GNUNET_DB_QueryStatus
+TEH_PG_insert_refresh_reveal (
+  void *cls,
+  /* TODO: oec */
+  );
+
+#endif