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authorChristian Grothoff <christian@grothoff.org>2020-12-09 12:31:10 +0100
committerChristian Grothoff <christian@grothoff.org>2020-12-09 12:31:10 +0100
commitfa1914b26781a9409a35fd6f8bfb54aae09fdd79 (patch)
tree626be333f8fb26f7a0d58fe334fc7cd41952af08 /src/exchangedb/plugin_exchangedb_postgres.c
parent9911b327ac299ec7eeae81b98cb520f4153071f2 (diff)
downloadexchange-fa1914b26781a9409a35fd6f8bfb54aae09fdd79.tar.gz
exchange-fa1914b26781a9409a35fd6f8bfb54aae09fdd79.tar.bz2
exchange-fa1914b26781a9409a35fd6f8bfb54aae09fdd79.zip
work on new logic to generate /wire response
Diffstat (limited to 'src/exchangedb/plugin_exchangedb_postgres.c')
-rw-r--r--src/exchangedb/plugin_exchangedb_postgres.c259
1 files changed, 259 insertions, 0 deletions
diff --git a/src/exchangedb/plugin_exchangedb_postgres.c b/src/exchangedb/plugin_exchangedb_postgres.c
index 2fcb0d01..24ae5b2e 100644
--- a/src/exchangedb/plugin_exchangedb_postgres.c
+++ b/src/exchangedb/plugin_exchangedb_postgres.c
@@ -1519,6 +1519,27 @@ postgres_get_session (void *cls)
" ,last_change=$3"
" WHERE payto_uri=$1",
3),
+ /* used in #postgres_update_wire() */
+ GNUNET_PQ_make_prepare ("get_wire_accounts",
+ "SELECT"
+ " payto_uri"
+ ",master_sig"
+ " FROM wire_accounts"
+ " WHERE is_active",
+ 0),
+ /* used in #postgres_update_wire() */
+ GNUNET_PQ_make_prepare ("get_wire_fees",
+ "SELECT"
+ " wire_fee_val"
+ ",wire_fee_frac"
+ ",closing_fee_val"
+ ",closing_fee_frac"
+ ",start_date"
+ ",end_date"
+ ",master_sig"
+ " FROM wire_fee"
+ " WHERE wire_method=$1",
+ 1),
/* used in #postgres_insert_signkey_revocation() */
GNUNET_PQ_make_prepare ("insert_signkey_revocation",
"INSERT INTO signkey_revocations "
@@ -8212,6 +8233,240 @@ postgres_update_wire (void *cls,
/**
+ * Closure for #get_wire_accounts_cb().
+ */
+struct GetWireAccountsContext
+{
+ /**
+ * Function to call per result.
+ */
+ TALER_EXCHANGEDB_WireAccountCallback cb;
+
+ /**
+ * Closure for @e cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Flag set to #GNUNET_OK as long as everything is fine.
+ */
+ int status;
+
+};
+
+
+/**
+ * Invoke the callback for each result.
+ *
+ * @param cls a `struct MissingWireContext *`
+ * @param result SQL result
+ * @param num_results number of rows in @a result
+ */
+static void
+get_wire_accounts_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct GetWireAccountsContext *ctx = cls;
+
+ for (unsigned int i = 0; i < num_results; i++)
+ {
+ char *payto_uri;
+ struct TALER_MasterSignatureP master_sig;
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ GNUNET_PQ_result_spec_string ("payto_uri",
+ &payto_uri),
+ GNUNET_PQ_result_spec_auto_from_type ("master_sig",
+ &master_sig),
+ GNUNET_PQ_result_spec_end
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_PQ_extract_result (result,
+ rs,
+ i))
+ {
+ GNUNET_break (0);
+ ctx->status = GNUNET_SYSERR;
+ return;
+ }
+ ctx->cb (ctx->cb_cls,
+ payto_uri,
+ &master_sig);
+ GNUNET_PQ_cleanup_result (rs);
+ }
+}
+
+
+/**
+ * Obtain information about the enabled wire accounts of the exchange.
+ *
+ * @param cls closure
+ * @param cb function to call on each account
+ * @param cb_cls closure for @a cb
+ * @return transaction status code
+ */
+static enum GNUNET_DB_QueryStatus
+postgres_get_wire_accounts (void *cls,
+ TALER_EXCHANGEDB_WireAccountCallback cb,
+ void *cb_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct GetWireAccountsContext ctx = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ .status = GNUNET_OK
+ };
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_end
+ };
+ enum GNUNET_DB_QueryStatus qs;
+ struct TALER_EXCHANGEDB_Session *session;
+
+ session = postgres_get_session (pg);
+ if (NULL == session)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ qs = GNUNET_PQ_eval_prepared_multi_select (session->conn,
+ "get_wire_accounts",
+ params,
+ &get_wire_accounts_cb,
+ &ctx);
+ if (GNUNET_OK != ctx.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+
+}
+
+
+/**
+ * Closure for #get_wire_fees_cb().
+ */
+struct GetWireFeesContext
+{
+ /**
+ * Function to call per result.
+ */
+ TALER_EXCHANGEDB_WireFeeCallback cb;
+
+ /**
+ * Closure for @e cb.
+ */
+ void *cb_cls;
+
+ /**
+ * Plugin context.
+ */
+ struct PostgresClosure *pg;
+
+ /**
+ * Flag set to #GNUNET_OK as long as everything is fine.
+ */
+ int status;
+
+};
+
+
+/**
+ * Invoke the callback for each result.
+ *
+ * @param cls a `struct MissingWireContext *`
+ * @param result SQL result
+ * @param num_results number of rows in @a result
+ */
+static void
+get_wire_fees_cb (void *cls,
+ PGresult *result,
+ unsigned int num_results)
+{
+ struct GetWireFeesContext *ctx = cls;
+ struct PostgresClosure *pg = ctx->pg;
+
+ for (unsigned int i = 0; i < num_results; i++)
+ {
+ struct TALER_MasterSignatureP master_sig;
+ struct TALER_Amount wire_fee;
+ struct TALER_Amount closing_fee;
+ struct GNUNET_TIME_Absolute start_date;
+ struct GNUNET_TIME_Absolute end_date;
+ struct GNUNET_PQ_ResultSpec rs[] = {
+ TALER_PQ_RESULT_SPEC_AMOUNT ("wire_fee",
+ &wire_fee),
+ TALER_PQ_RESULT_SPEC_AMOUNT ("closing_fee",
+ &closing_fee),
+ TALER_PQ_result_spec_absolute_time ("start_date",
+ &start_date),
+ TALER_PQ_result_spec_absolute_time ("end_date",
+ &end_date),
+ GNUNET_PQ_result_spec_auto_from_type ("master_sig",
+ &master_sig),
+ GNUNET_PQ_result_spec_end
+ };
+
+ if (GNUNET_OK !=
+ GNUNET_PQ_extract_result (result,
+ rs,
+ i))
+ {
+ GNUNET_break (0);
+ ctx->status = GNUNET_SYSERR;
+ return;
+ }
+ ctx->cb (ctx->cb_cls,
+ &wire_fee,
+ &closing_fee,
+ start_date,
+ end_date,
+ &master_sig);
+ GNUNET_PQ_cleanup_result (rs);
+ }
+}
+
+
+/**
+ * Obtain information about the fee structure of the exchange for
+ * a given @a wire_method
+ *
+ * @param cls closure
+ * @param wire_method which wire method to obtain fees for
+ * @param cb function to call on each account
+ * @param cb_cls closure for @a cb
+ * @return transaction status code
+ */
+static enum GNUNET_DB_QueryStatus
+postgres_get_wire_fees (void *cls,
+ const char *wire_method,
+ TALER_EXCHANGEDB_WireFeeCallback cb,
+ void *cb_cls)
+{
+ struct PostgresClosure *pg = cls;
+ struct GNUNET_PQ_QueryParam params[] = {
+ GNUNET_PQ_query_param_string (wire_method),
+ GNUNET_PQ_query_param_end
+ };
+ struct GetWireFeesContext ctx = {
+ .cb = cb,
+ .cb_cls = cb_cls,
+ .pg = pg,
+ .status = GNUNET_OK
+ };
+ enum GNUNET_DB_QueryStatus qs;
+ struct TALER_EXCHANGEDB_Session *session;
+
+ session = postgres_get_session (pg);
+ if (NULL == session)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ qs = GNUNET_PQ_eval_prepared_multi_select (session->conn,
+ "get_wire_fees",
+ params,
+ &get_wire_fees_cb,
+ &ctx);
+ if (GNUNET_OK != ctx.status)
+ return GNUNET_DB_STATUS_HARD_ERROR;
+ return qs;
+}
+
+
+/**
* Store information about a revoked online signing key.
*
* @param cls closure
@@ -8810,6 +9065,10 @@ libtaler_plugin_exchangedb_postgres_init (void *cls)
= &postgres_insert_wire;
plugin->update_wire
= &postgres_update_wire;
+ plugin->get_wire_accounts
+ = &postgres_get_wire_accounts;
+ plugin->get_wire_fees
+ = &postgres_get_wire_fees;
plugin->insert_signkey_revocation
= &postgres_insert_signkey_revocation;
plugin->lookup_future_denomination_key