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Diffstat (limited to 'src/exchange-tools/taler-exchange-sepa.c')
| -rw-r--r-- | src/exchange-tools/taler-exchange-sepa.c | 163 |
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 new file mode 100644 index 000000000..a3ac95436 --- /dev/null +++ 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 */ |