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authorChristian Grothoff <christian@grothoff.org>2016-04-02 20:58:22 +0200
committerChristian Grothoff <christian@grothoff.org>2016-04-02 20:58:22 +0200
commitdaae3d3ddf1cbee4761a6a2c0066732fb4723fb0 (patch)
treeba2e9a677f6a1bede7f871adc9ca0c97ac62e7c6 /src
parent937078bbdc747c92d45a3879862ff4664d1ff636 (diff)
downloadexchange-daae3d3ddf1cbee4761a6a2c0066732fb4723fb0.tar.gz
exchange-daae3d3ddf1cbee4761a6a2c0066732fb4723fb0.tar.bz2
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change taler-exchange-sepa to a more generic taler-exchange-wire tool using the wire plugins (#4237)
Diffstat (limited to 'src')
-rw-r--r--src/exchange-tools/Makefile.am10
-rw-r--r--src/exchange-tools/taler-exchange-sepa.c189
-rw-r--r--src/exchange-tools/taler-exchange-wire.c201
-rw-r--r--src/include/taler_signatures.h13
-rw-r--r--src/include/taler_wire_plugin.h18
-rw-r--r--src/wire/plugin_wire_sepa.c132
-rw-r--r--src/wire/plugin_wire_template.c23
-rw-r--r--src/wire/plugin_wire_test.c93
8 files changed, 460 insertions, 219 deletions
diff --git a/src/exchange-tools/Makefile.am b/src/exchange-tools/Makefile.am
index fda9cefa..feb3c314 100644
--- a/src/exchange-tools/Makefile.am
+++ b/src/exchange-tools/Makefile.am
@@ -11,7 +11,7 @@ bin_PROGRAMS = \
taler-exchange-keyup \
taler-exchange-keycheck \
taler-exchange-reservemod \
- taler-exchange-sepa \
+ taler-exchange-wire \
taler-exchange-dbinit
taler_exchange_keyup_SOURCES = \
@@ -33,15 +33,15 @@ taler_auditor_sign_LDADD = \
-lgnunetutil $(XLIB)
-taler_exchange_sepa_SOURCES = \
- taler-exchange-sepa.c
-taler_exchange_sepa_LDADD = \
+taler_exchange_wire_SOURCES = \
+ taler-exchange-wire.c
+taler_exchange_wire_LDADD = \
$(LIBGCRYPT_LIBS) \
$(top_builddir)/src/util/libtalerutil.la \
-lgnunetjson \
-lgnunetutil \
-ljansson $(XLIB)
-taler_exchange_sepa_LDFLAGS = $(POSTGRESQL_LDFLAGS)
+taler_exchange_wire_LDFLAGS = $(POSTGRESQL_LDFLAGS)
taler_exchange_keycheck_SOURCES = \
taler-exchange-keycheck.c
diff --git a/src/exchange-tools/taler-exchange-sepa.c b/src/exchange-tools/taler-exchange-sepa.c
deleted file mode 100644
index 1bfb4913..00000000
--- a/src/exchange-tools/taler-exchange-sepa.c
+++ /dev/null
@@ -1,189 +0,0 @@
-/*
- 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 <gnunet/gnunet_json_lib.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;
-
-/**
- * Account holder address.
- */
-static char *sepa_address;
-
-/**
- * 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[] = {
- {'a', "address", "ADDRESS",
- "account holder address", 1,
- &GNUNET_GETOPT_set_string, &sepa_address},
- {'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;
- struct GNUNET_HashCode salt;
-
- 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;
- }
- if ( (NULL == sepa_address) ||
- (NULL == iban) ||
- (NULL == sepa_name) ||
- (NULL == bic) )
- {
- fprintf (stderr,
- "Required arguments missing\n");
- return 1;
- }
-
- /* Compute message to sign */
- GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE,
- &salt,
- sizeof (salt));
- 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:s, s:s, s:o, s:o}",
- "type", "sepa",
- "address", sepa_address,
- "receiver_name", sepa_name,
- "iban", iban,
- "bic", bic,
- "salt", GNUNET_JSON_from_data (&salt,
- sizeof (salt)),
- "sig", GNUNET_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 */
diff --git a/src/exchange-tools/taler-exchange-wire.c b/src/exchange-tools/taler-exchange-wire.c
new file mode 100644
index 00000000..3bea78f6
--- /dev/null
+++ b/src/exchange-tools/taler-exchange-wire.c
@@ -0,0 +1,201 @@
+/*
+ This file is part of TALER
+ Copyright (C) 2015, 2016 Inria
+
+ 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-wire.c
+ * @brief Create signed response for /wire requests.
+ * @author Christian Grothoff
+ */
+#include <platform.h>
+#include <jansson.h>
+#include <gnunet/gnunet_json_lib.h>
+#include "taler_crypto_lib.h"
+#include "taler_wire_plugin.h"
+#include "taler_signatures.h"
+
+
+/**
+ * Filename of the master private key.
+ */
+static char *masterkeyfile;
+
+/**
+ * Account holder information in JSON format.
+ */
+static char *json_in;
+
+/**
+ * Which wire method is this for?
+ */
+static char *method;
+
+/**
+ * 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[] = {
+ {'j', "json", "JSON",
+ "account information in JSON format", 1,
+ &GNUNET_GETOPT_set_string, &json_in},
+ {'m', "master-key", "FILE",
+ "master key file (private key)", 1,
+ &GNUNET_GETOPT_set_filename, &masterkeyfile},
+ {'t', "type", "METHOD",
+ "which wire transfer method (i.e. 'test' or 'sepa') is this for?", 1,
+ &GNUNET_GETOPT_set_filename, &method},
+ {'o', "output", "FILE",
+ "where to write the result", 1,
+ &GNUNET_GETOPT_set_filename, &output_filename},
+ TALER_GETOPT_OPTION_HELP ("Setup /wire response"),
+ GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+ GNUNET_GETOPT_OPTION_END
+ };
+ struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
+ struct TALER_MasterPrivateKeyP key;
+ struct TALER_MasterSignatureP sig;
+ json_t *j;
+ json_error_t err;
+ char *json_out;
+ struct GNUNET_HashCode salt;
+ char *lib_name;
+ struct TALER_WIRE_Plugin *plugin;
+
+ GNUNET_assert (GNUNET_OK ==
+ GNUNET_log_setup ("taler-exchange-wire",
+ "WARNING",
+ NULL));
+
+ if (GNUNET_GETOPT_run ("taler-exchange-wire",
+ 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;
+ }
+ if (NULL == json_in)
+ {
+ fprintf (stderr,
+ "Required -j argument missing\n");
+ return 1;
+ }
+ if (NULL == method)
+ {
+ fprintf (stderr,
+ "Required -t argument missing\n");
+ return 1;
+ }
+ j = json_loads (json_in,
+ JSON_REJECT_DUPLICATES,
+ &err);
+ if (NULL == j)
+ {
+ fprintf (stderr,
+ "Failed to parse JSON: %s (at offset %u)\n",
+ err.text,
+ (unsigned int) err.position);
+ return 1;
+ }
+ key.eddsa_priv = *eddsa_priv;
+ GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE,
+ &salt,
+ sizeof (salt));
+ (void) GNUNET_asprintf (&lib_name,
+ "libtaler_plugin_wire_%s",
+ method);
+ plugin = GNUNET_PLUGIN_load (lib_name,
+ NULL);
+ if (NULL == plugin)
+ {
+ GNUNET_free (lib_name);
+ GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+ "Wire transfer method `%s' not supported\n",
+ method);
+ return 1;
+ }
+ plugin->library_name = lib_name;
+ if (GNUNET_OK !=
+ plugin->sign_wire_details (plugin->cls,
+ j,
+ &key,
+ &salt,
+ &sig))
+ {
+ /* sign function should have logged applicable errors */
+ json_decref (j);
+ GNUNET_PLUGIN_unload (lib_name,
+ plugin);
+ GNUNET_free (lib_name);
+ return 1;
+ }
+ GNUNET_PLUGIN_unload (lib_name,
+ plugin);
+ GNUNET_free (lib_name);
+ GNUNET_free (eddsa_priv);
+
+ /* add signature and salt to JSON message */
+ json_object_set_new (j,
+ "salt",
+ GNUNET_JSON_from_data (&salt,
+ sizeof (salt)));
+ json_object_set_new (j,
+ "sig",
+ GNUNET_JSON_from_data (&sig,
+ sizeof (sig)));
+
+ /* dump result to stdout */
+ json_out = json_dumps (j, JSON_INDENT(2));
+ json_decref (j);
+ GNUNET_assert (NULL != json_out);
+
+ if (NULL != output_filename)
+ {
+ fclose (stdout);
+ stdout = fopen (output_filename,
+ "w+");
+ }
+ fprintf (stdout,
+ "%s",
+ json_out);
+ fflush (stdout);
+ free (json_out);
+ return 0;
+}
+
+/* end of taler-exchange-wire.c */
diff --git a/src/include/taler_signatures.h b/src/include/taler_signatures.h
index 23bdaa57..587cdcee 100644
--- a/src/include/taler_signatures.h
+++ b/src/include/taler_signatures.h
@@ -69,10 +69,16 @@
/**
* Signature where the Exchange confirms its SEPA details in
- * the /wire/sepa response.
+ * the /wire response.
*/
#define TALER_SIGNATURE_MASTER_SEPA_DETAILS 1026
+/**
+ * Signature where the Exchange confirms its TEST details in
+ * the /wire response.
+ */
+#define TALER_SIGNATURE_MASTER_TEST_DETAILS 1027
+
/*********************************************/
/* Exchange online signatures (with signing key) */
@@ -762,11 +768,12 @@ struct TALER_RefreshCommitLinkP
* @brief Information signed by the exchange's master
* key affirming the SEPA details for the exchange.
*/
-struct TALER_MasterWireSepaDetailsPS
+struct TALER_MasterWireDetailsPS
{
/**
- * Purpose is #TALER_SIGNATURE_MASTER_SEPA_DETAILS.
+ * Purpose is #TALER_SIGNATURE_MASTER_SEPA_DETAILS or
+ * #TALER_SIGNATURE_MASTER_TEST_DETAILS.
*/
struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
diff --git a/src/include/taler_wire_plugin.h b/src/include/taler_wire_plugin.h
index e166558a..9b2bc8fd 100644
--- a/src/include/taler_wire_plugin.h
+++ b/src/include/taler_wire_plugin.h
@@ -114,6 +114,24 @@ struct TALER_WIRE_Plugin
/**
+ * Sign wire transfer details in the plugin-specific format.
+ *
+ * @param cls closure
+ * @param in wire transfer details in JSON format
+ * @param key private signing key to use
+ * @param salt salt to add
+ * @param[out] sig where to write the signature
+ * @return #GNUNET_OK on success
+ */
+ int
+ (*sign_wire_details)(void *cls,
+ const json_t *in,
+ const struct TALER_MasterPrivateKeyP *key,
+ const struct GNUNET_HashCode *salt,
+ struct TALER_MasterSignatureP *sig);
+
+
+ /**
* Check if the given wire format JSON object is correctly formatted
*
* @param cls the @e cls of this struct with the plugin-specific state
diff --git a/src/wire/plugin_wire_sepa.c b/src/wire/plugin_wire_sepa.c
index 99543672..466e450b 100644
--- a/src/wire/plugin_wire_sepa.c
+++ b/src/wire/plugin_wire_sepa.c
@@ -352,6 +352,42 @@ validate_iban (const char *iban)
/**
+ * Compute purpose for signing.
+ *
+ * @param sepa_name name of the account holder
+ * @param iban bank account number in IBAN format
+ * @param bic bank identifier
+ * @param[out] mp purpose to be signed
+ */
+static void
+compute_purpose (const char *sepa_name,
+ const char *iban,
+ const char *bic,
+ struct TALER_MasterWireDetailsPS *wsd)
+{
+ struct GNUNET_HashContext *hc;
+
+ wsd->purpose.size = htonl (sizeof (struct TALER_MasterWireDetailsPS));
+ wsd->purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
+ hc = GNUNET_CRYPTO_hash_context_start ();
+ GNUNET_CRYPTO_hash_context_read (hc,
+ "sepa",
+ strlen ("sepa") + 1);
+ 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);
+ GNUNET_CRYPTO_hash_context_finish (hc,
+ &wsd->h_sepa_details);
+}
+
+
+/**
* Verify that the signature in the @a json for /wire/sepa is valid.
*
* @param json json reply with the signature
@@ -365,14 +401,13 @@ verify_wire_sepa_signature_ok (const json_t *json,
const struct TALER_MasterPublicKeyP *master_pub)
{
struct TALER_MasterSignatureP exchange_sig;
- struct TALER_MasterWireSepaDetailsPS mp;
- const char *receiver_name;
+ struct TALER_MasterWireDetailsPS mp;
+ const char *name;
const char *iban;
const char *bic;
- struct GNUNET_HashContext *hc;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_fixed_auto ("sig", &exchange_sig),
- GNUNET_JSON_spec_string ("receiver_name", &receiver_name),
+ GNUNET_JSON_spec_string ("name", &name),
GNUNET_JSON_spec_string ("iban", &iban),
GNUNET_JSON_spec_string ("bic", &bic),
GNUNET_JSON_spec_end()
@@ -391,22 +426,10 @@ verify_wire_sepa_signature_ok (const json_t *json,
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
-
- mp.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
- mp.purpose.size = htonl (sizeof (struct TALER_MasterWireSepaDetailsPS));
- hc = GNUNET_CRYPTO_hash_context_start ();
- GNUNET_CRYPTO_hash_context_read (hc,
- receiver_name,
- strlen (receiver_name) + 1);
- GNUNET_CRYPTO_hash_context_read (hc,
- iban,
- strlen (iban) + 1);
- GNUNET_CRYPTO_hash_context_read (hc,
- bic,
- strlen (bic) + 1);
- GNUNET_CRYPTO_hash_context_finish (hc,
- &mp.h_sepa_details);
-
+ compute_purpose (name,
+ iban,
+ bic,
+ &mp);
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SEPA_DETAILS,
&mp.purpose,
@@ -447,12 +470,12 @@ sepa_wire_validate (void *cls,
"{"
"s:s," /* type: sepa */
"s:s," /* iban: IBAN */
- "s:s," /* receiver_name: beneficiary name */
+ "s:s," /* name: beneficiary name */
"s:s" /* bic: beneficiary bank's BIC */
"}",
"type", &type,
"iban", &iban,
- "receiver_name", &name,
+ "name", &name,
"bic", &bic))
{
GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
@@ -549,6 +572,70 @@ sepa_get_wire_details (void *cls,
/**
+ * Sign wire transfer details in the plugin-specific format.
+ *
+ * @param cls closure
+ * @param in wire transfer details in JSON format
+ * @param key private signing key to use
+ * @param salt salt to add
+ * @param[out] sig where to write the signature
+ * @return #GNUNET_OK on success
+ */
+static int
+sepa_sign_wire_details (void *cls,
+ const json_t *in,
+ const struct TALER_MasterPrivateKeyP *key,
+ const struct GNUNET_HashCode *salt,
+ struct TALER_MasterSignatureP *sig)
+{
+ struct TALER_MasterWireDetailsPS wsd;
+ const char *sepa_name;
+ const char *iban;
+ const char *bic;
+ const char *type;
+ json_error_t err;
+
+ if (0 !=
+ json_unpack_ex ((json_t *) in,
+ &err,
+ 0 /* flags */,
+ "{s:s, s:s, s:s, s:s}",
+ "type", &type,
+ "name", &sepa_name,
+ "iban", &iban,
+ "bic", &bic))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Failed to unpack JSON: %s (at %u)\n",
+ err.text,
+ err.position);
+ return GNUNET_SYSERR;
+ }
+ if (0 != strcmp (type,
+ "sepa"))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "`type' must be `sepa' for SEPA wire details\n");
+ return GNUNET_SYSERR;
+ }
+ if (1 != validate_iban (iban))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "IBAN invalid in SEPA wire details\n");
+ return GNUNET_SYSERR;
+ }
+ compute_purpose (sepa_name,
+ iban,
+ bic,
+ &wsd);
+ GNUNET_CRYPTO_eddsa_sign (&key->eddsa_priv,
+ &wsd.purpose,
+ &sig->eddsa_signature);
+ return GNUNET_OK;
+}
+
+
+/**
* Prepare for exeuction of a wire transfer.
*
* @param cls the @e cls of this struct with the plugin-specific state
@@ -662,6 +749,7 @@ libtaler_plugin_wire_sepa_init (void *cls)
plugin->cls = sc;
plugin->amount_round = &sepa_amount_round;
plugin->get_wire_details = &sepa_get_wire_details;
+ plugin->sign_wire_details = &sepa_sign_wire_details;
plugin->wire_validate = &sepa_wire_validate;
plugin->prepare_wire_transfer = &sepa_prepare_wire_transfer;
plugin->prepare_wire_transfer_cancel = &sepa_prepare_wire_transfer_cancel;
diff --git a/src/wire/plugin_wire_template.c b/src/wire/plugin_wire_template.c
index fd6fbfbe..46908c29 100644
--- a/src/wire/plugin_wire_template.c
+++ b/src/wire/plugin_wire_template.c
@@ -172,6 +172,28 @@ template_execute_wire_transfer (void *cls,
/**
+ * Sign wire transfer details in the plugin-specific format.
+ *
+ * @param cls closure
+ * @param in wire transfer details in JSON format
+ * @param key private signing key to use
+ * @param salt salt to add
+ * @param[out] sig where to write the signature
+ * @return #GNUNET_OK on success
+ */
+static int
+template_sign_wire_details (void *cls,
+ const json_t *in,
+ const struct TALER_MasterPrivateKeyP *key,
+ const struct GNUNET_HashCode *salt,
+ struct TALER_MasterSignatureP *sig)
+{
+ GNUNET_break (0);
+ return GNUNET_SYSERR;
+}
+
+
+/**
* Abort execution of a wire transfer. For example, because we are
* shutting down. Note that if an execution is aborted, it may or
* may not still succeed. The caller MUST run @e
@@ -236,6 +258,7 @@ libtaler_plugin_wire_template_init (void *cls)
plugin->cls = tc;
plugin->amount_round = &template_amount_round;
plugin->get_wire_details = &template_get_wire_details;
+ plugin->sign_wire_details = &template_sign_wire_details;
plugin->wire_validate = &template_wire_validate;
plugin->prepare_wire_transfer = &template_prepare_wire_transfer;
plugin->prepare_wire_transfer_cancel = &template_prepare_wire_transfer_cancel;
diff --git a/src/wire/plugin_wire_test.c b/src/wire/plugin_wire_test.c
index 30438072..8c03d155 100644
--- a/src/wire/plugin_wire_test.c
+++ b/src/wire/plugin_wire_test.c
@@ -22,6 +22,7 @@
#include "platform.h"
#include "taler_wire_plugin.h"
#include "taler_bank_service.h"
+#include "taler_signatures.h"
/* only for HTTP status codes */
#include <microhttpd.h>
@@ -286,6 +287,38 @@ test_get_wire_details (void *cls,
/**
+ * Compute purpose for signing.
+ *
+ * @param account number of the account
+ * @param bank_uri URI of the bank
+ * @param[out] mp purpose to be signed
+ */
+static void
+compute_purpose (uint64_t account,
+ const char *bank_uri,
+ struct TALER_MasterWireDetailsPS *wsd)
+{
+ struct GNUNET_HashContext *hc;
+ uint64_t n = GNUNET_htonll (account);
+
+ wsd->purpose.size = htonl (sizeof (struct TALER_MasterWireDetailsPS));
+ wsd->purpose.purpose = htonl (TALER_SIGNATURE_MASTER_TEST_DETAILS);
+ hc = GNUNET_CRYPTO_hash_context_start ();
+ GNUNET_CRYPTO_hash_context_read (hc,
+ "test",
+ strlen ("test") + 1);
+ GNUNET_CRYPTO_hash_context_read (hc,
+ &n,
+ sizeof (n));
+ GNUNET_CRYPTO_hash_context_read (hc,
+ bank_uri,
+ strlen (bank_uri) + 1);
+ GNUNET_CRYPTO_hash_context_finish (hc,
+ &wsd->h_sepa_details);
+}
+
+
+/**
* Check if the given wire format JSON object is correctly formatted.
* Right now, the only thing we require is a field
* "account_number" which must contain a positive 53-bit integer.
@@ -319,6 +352,10 @@ test_wire_validate (void *cls,
GNUNET_break (0);
return GNUNET_SYSERR;
}
+ /* FIXME: should check signature here in the future!
+ (note: right now the sig is not properly provided
+ by the exchange due to the way account data is
+ specified in the configuration) */
return GNUNET_YES;
}
@@ -511,6 +548,61 @@ execute_cb (void *cls,
/**
+ * Sign wire transfer details in the plugin-specific format.
+ *
+ * @param cls closure
+ * @param in wire transfer details in JSON format
+ * @param key private signing key to use
+ * @param salt salt to add
+ * @param[out] sig where to write the signature
+ * @return #GNUNET_OK on success
+ */
+static int
+test_sign_wire_details (void *cls,
+ const json_t *in,
+ const struct TALER_MasterPrivateKeyP *key,
+ const struct GNUNET_HashCode *salt,
+ struct TALER_MasterSignatureP *sig)
+{
+ struct TALER_MasterWireDetailsPS wsd;
+ const char *bank_uri;
+ const char *type;
+ json_int_t account;
+ json_error_t err;
+
+ if (0 !=
+ json_unpack_ex ((json_t *) in,
+ &err,
+ 0 /* flags */,
+ "{s:s, s:s, s:I}",
+ "type", &type,
+ "bank_uri", &bank_uri,
+ "account_number", &account))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "Failed to unpack JSON: %s (at %u)\n",
+ err.text,
+ err.position);
+ return GNUNET_SYSERR;
+ }
+ if (0 != strcmp (type,
+ "test"))
+ {
+ GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+ "`type' must be `test' for test wire details\n");
+ return GNUNET_SYSERR;
+ }
+ compute_purpose (account,
+ bank_uri,
+ &wsd);
+ GNUNET_CRYPTO_eddsa_sign (&key->eddsa_priv,
+ &wsd.purpose,
+ &sig->eddsa_signature);
+ return GNUNET_OK;
+}
+
+
+/**
* Execute a wire transfer.
*
* @param cls the @e cls of this struct with the plugin-specific state
@@ -682,6 +774,7 @@ libtaler_plugin_wire_test_init (void *cls)
plugin->cls = tc;
plugin->amount_round = &test_amount_round;
plugin->get_wire_details = &test_get_wire_details;
+ plugin->sign_wire_details = &test_sign_wire_details;
plugin->wire_validate = &test_wire_validate;
plugin->prepare_wire_transfer = &test_prepare_wire_transfer;
plugin->prepare_wire_transfer_cancel = &test_prepare_wire_transfer_cancel;