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-rw-r--r--src/mint/taler-mint-httpd_db.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/src/mint/taler-mint-httpd_db.c b/src/mint/taler-mint-httpd_db.c
index 60218ab66..2beaa8f97 100644
--- a/src/mint/taler-mint-httpd_db.c
+++ b/src/mint/taler-mint-httpd_db.c
@@ -686,3 +686,124 @@ TALER_MINT_db_execute_refresh_melt (struct MHD_Connection *connection,
}
+
+
+/**
+ * Execute a /refresh/commit.
+ *
+ * @param connection the MHD connection to handle
+ * @param kappa size of x-dimension of @commit_coin and @commit_link arrays
+ * @param num_oldcoins size of y-dimension of @commit_coin and @commit_link arrays
+ * @param num_newcoins size of y-dimension of @commit_coin and @commit_link arrays
+ * @return MHD result code
+ */
+int
+TALER_MINT_db_execute_refresh_commit (struct MHD_Connection *connection,
+ const struct GNUNET_CRYPTO_EddsaPublicKey *refresh_session_pub,
+ unsigned int kappa,
+ unsigned int num_oldcoins,
+ unsigned int num_newcoins,
+ struct RefreshCommitCoin *const*commit_coin,
+ struct RefreshCommitLink *const*commit_link)
+
+{
+ PGconn *db_conn;
+ struct RefreshSession refresh_session;
+ unsigned int i;
+ unsigned int j;
+ int res;
+
+ if (NULL == (db_conn = TALER_MINT_DB_get_connection ()))
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (0);
+ return MHD_NO;
+ }
+
+ /* Send response immediately if we already know the session.
+ * Do _not_ care about fields other than session_pub in this case. */
+
+ res = TALER_MINT_DB_get_refresh_session (db_conn,
+ refresh_session_pub,
+ &refresh_session);
+ // FIXME: this should check that kappa and num_newcoins match
+ // our expectations from refresh_session!
+
+ for (i = 0; i < refresh_session.kappa; i++)
+ {
+ for (j = 0; j < refresh_session.num_newcoins; j++)
+ {
+ if (GNUNET_OK !=
+ TALER_MINT_DB_insert_refresh_commit_coin (db_conn,
+ &commit_coin[i][j]))
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (0);
+ GNUNET_break (GNUNET_OK == TALER_MINT_DB_rollback (db_conn));
+ return MHD_NO;
+ }
+
+ if (GNUNET_OK !=
+ TALER_MINT_DB_insert_refresh_commit_link (db_conn, &commit_link[i][j]))
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (0);
+ GNUNET_break (GNUNET_OK == TALER_MINT_DB_rollback (db_conn));
+ return MHD_NO;
+ }
+ }
+ }
+
+
+
+
+
+ if ( (GNUNET_YES == res) &&
+ (GNUNET_YES == refresh_session.has_commit_sig) )
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "sending cached commit response\n");
+ res = TALER_MINT_reply_refresh_commit_success (connection,
+ &refresh_session);
+ GNUNET_break (res != GNUNET_SYSERR);
+ return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+ }
+ if (GNUNET_SYSERR == res)
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (0);
+ return MHD_NO;
+ }
+
+ if (GNUNET_OK != TALER_MINT_DB_transaction (db_conn))
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (0);
+ return MHD_NO;
+ }
+
+ /* Re-fetch the session information from the database,
+ * in case a concurrent transaction modified it. */
+
+ res = TALER_MINT_DB_get_refresh_session (db_conn,
+ refresh_session_pub,
+ &refresh_session);
+ if (GNUNET_OK != res)
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (GNUNET_SYSERR != res);
+ GNUNET_break (GNUNET_OK == TALER_MINT_DB_rollback (db_conn));
+ return MHD_NO;
+ }
+
+
+
+ if (GNUNET_OK != TALER_MINT_DB_commit (db_conn))
+ {
+ // FIXME: return 'internal error'?
+ GNUNET_break (0);
+ return MHD_NO;
+ }
+
+ return TALER_MINT_reply_refresh_commit_success (connection, &refresh_session);
+ }