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-rw-r--r--src/exchange-tools/taler-exchange-sepa.c163
1 files changed, 163 insertions, 0 deletions
diff --git a/src/exchange-tools/taler-exchange-sepa.c b/src/exchange-tools/taler-exchange-sepa.c
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index 000000000..a3ac95436
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+++ b/src/exchange-tools/taler-exchange-sepa.c
@@ -0,0 +1,163 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2015 GNUnet e.V.
+
+ 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, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-sepa.c
+ * @brief Create signed response for /wire/sepa requests.
+ * @author Christian Grothoff
+ */
+#include <platform.h>
+#include <jansson.h>
+#include "taler_crypto_lib.h"
+#include "taler_signatures.h"
+
+
+/**
+ * Filename of the master private key.
+ */
+static char *masterkeyfile;
+
+/**
+ * Account holder name.
+ */
+static char *sepa_name;
+
+/**
+ * IBAN number.
+ */
+static char *iban;
+
+/**
+ * BIC number.
+ */
+static char *bic;
+
+/**
+ * Where to write the result.
+ */
+static char *output_filename;
+
+
+/**
+ * The main function of the taler-exchange-sepa tool. This tool is used
+ * to sign the SEPA bank account details using the master key.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+ char *const *argv)
+{
+ static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+ {'b', "bic", "BICCODE",
+ "bank BIC code", 1,
+ &GNUNET_GETOPT_set_string, &bic},
+ {'i', "iban", "IBAN",
+ "IBAN number of the account", 1,
+ &GNUNET_GETOPT_set_string, &iban},
+ {'m', "master-key", "FILE",
+ "master key file (private key)", 1,
+ &GNUNET_GETOPT_set_filename, &masterkeyfile},
+ {'n', "name", "NAME",
+ "name of the account holder", 1,
+ &GNUNET_GETOPT_set_string, &sepa_name},
+ {'o', "output", "FILE",
+ "where to write the result", 1,
+ &GNUNET_GETOPT_set_filename, &output_filename},
+ TALER_GETOPT_OPTION_HELP ("Setup /wire/sepa response"),
+ GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+ GNUNET_GETOPT_OPTION_END
+ };
+ struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
+ struct TALER_MasterWireSepaDetailsPS wsd;
+ struct TALER_MasterSignatureP sig;
+ struct GNUNET_HashContext *hc;
+ json_t *reply;
+ char *json_str;
+
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_log_setup ("taler-exchange-sepa",
+ "WARNING",
+ NULL));
+
+ if (GNUNET_GETOPT_run ("taler-exchange-sepa",
+ options,
+ argc, argv) < 0)
+ return 1;
+ if (NULL == masterkeyfile)
+ {
+ fprintf (stderr,
+ "Master key file not given\n");
+ return 1;
+ }
+ eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (masterkeyfile);
+ if (NULL == eddsa_priv)
+ {
+ fprintf (stderr,
+ "Failed to initialize master key from file `%s'\n",
+ masterkeyfile);
+ return 1;
+ }
+
+ /* Compute message to sign */
+ hc = GNUNET_CRYPTO_hash_context_start ();
+ GNUNET_CRYPTO_hash_context_read (hc,
+ sepa_name,
+ strlen (sepa_name) + 1);
+ GNUNET_CRYPTO_hash_context_read (hc,
+ iban,
+ strlen (iban) + 1);
+ GNUNET_CRYPTO_hash_context_read (hc,
+ bic,
+ strlen (bic) + 1);
+ wsd.purpose.size = htonl (sizeof (wsd));
+ wsd.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
+ GNUNET_CRYPTO_hash_context_finish (hc,
+ &wsd.h_sepa_details);
+ GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
+ &wsd.purpose,
+ &sig.eddsa_signature);
+ GNUNET_free (eddsa_priv);
+
+ /* build JSON message */
+ reply = json_pack ("{s:s, s:s, s:s, s:o}",
+ "receiver_name", sepa_name,
+ "iban", iban,
+ "bic", bic,
+ "sig", TALER_json_from_data (&sig,
+ sizeof (sig)));
+ GNUNET_assert (NULL != reply);
+
+ /* dump result to stdout */
+ json_str = json_dumps (reply, JSON_INDENT(2));
+ GNUNET_assert (NULL != json_str);
+
+ if (NULL != output_filename)
+ {
+ fclose (stdout);
+ stdout = fopen (output_filename,
+ "w+");
+ }
+ fprintf (stdout,
+ "%s",
+ json_str);
+ fflush (stdout);
+ free (json_str);
+ return 0;
+}
+
+/* end of taler-exchange-sepa.c */