add logic for wire fee signing with new offline tool

This commit is contained in:
Christian Grothoff 2020-12-05 10:48:59 +01:00
parent 8338d4574f
commit ba4f585d69
No known key found for this signature in database
GPG Key ID: 939E6BE1E29FC3CC

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@ -20,6 +20,7 @@
*/
#include <platform.h>
#include <gnunet/gnunet_json_lib.h>
#include "taler_json_lib.h"
#include "taler_exchange_service.h"
@ -200,6 +201,34 @@ struct WireDelRequest
};
/**
* Data structure for announcing wire fees.
*/
struct WireFeeRequest
{
/**
* Kept in a DLL.
*/
struct WireFeeRequest *next;
/**
* Kept in a DLL.
*/
struct WireFeeRequest *prev;
/**
* Operation handle.
*/
struct TALER_EXCHANGE_ManagementSetWireFeeHandle *h;
/**
* Array index of the associated command.
*/
size_t idx;
};
/**
* Next work item to perform.
*/
@ -252,6 +281,16 @@ static struct WireDelRequest *wdr_head;
*/
static struct WireDelRequest *wdr_tail;
/**
* Active wire fee requests.
*/
static struct WireFeeRequest *wfr_head;
/**
* Active wire fee requests.
*/
static struct WireFeeRequest *wfr_tail;
/**
* Shutdown task. Invoked when the application is being terminated.
@ -324,6 +363,21 @@ do_shutdown (void *cls)
GNUNET_free (wdr);
}
}
{
struct WireFeeRequest *wfr;
while (NULL != (wfr = wfr_head))
{
fprintf (stderr,
"Aborting incomplete wire fee #%u\n",
(unsigned int) wfr->idx);
TALER_EXCHANGE_management_set_wire_fees_cancel (wfr->h);
GNUNET_CONTAINER_DLL_remove (wfr_head,
wfr_tail,
wfr);
GNUNET_free (wfr);
}
}
if (NULL != out)
{
json_dumpf (out,
@ -372,6 +426,7 @@ test_shutdown (void)
(NULL == srr_head) &&
(NULL == war_head) &&
(NULL == wdr_head) &&
(NULL == wfr_head) &&
(NULL == mgkh) &&
(NULL == nxt) )
GNUNET_SCHEDULER_shutdown ();
@ -852,6 +907,105 @@ upload_wire_del (const char *exchange_url,
}
/**
* Function called with information about the post wire fee operation result.
*
* @param cls closure with a `struct WireFeeRequest`
* @param hr HTTP response data
*/
static void
wire_fee_cb (
void *cls,
const struct TALER_EXCHANGE_HttpResponse *hr)
{
struct WireFeeRequest *wfr = cls;
if (MHD_HTTP_NO_CONTENT != hr->http_status)
{
fprintf (stderr,
"Upload failed for command %u with status %u: %s (%s)\n",
(unsigned int) wfr->idx,
hr->http_status,
TALER_ErrorCode_get_hint (hr->ec),
hr->hint);
}
GNUNET_CONTAINER_DLL_remove (wfr_head,
wfr_tail,
wfr);
GNUNET_free (wfr);
test_shutdown ();
}
/**
* Upload wire fee.
*
* @param exchange_url base URL of the exchange
* @param idx index of the operation we are performing (for logging)
* @param value argumets for denomination revocation
*/
static void
upload_wire_fee (const char *exchange_url,
size_t idx,
const json_t *value)
{
struct TALER_MasterSignatureP master_sig;
const char *wire_method;
struct WireFeeRequest *wfr;
const char *err_name;
unsigned int err_line;
struct TALER_Amount wire_fee;
struct TALER_Amount closing_fee;
struct GNUNET_TIME_Absolute start_time;
struct GNUNET_TIME_Absolute end_time;
struct GNUNET_JSON_Specification spec[] = {
GNUNET_JSON_spec_string ("wire_method",
&wire_method),
TALER_JSON_spec_amount ("wire_fee",
&wire_fee),
TALER_JSON_spec_amount ("closing_fee",
&closing_fee),
GNUNET_JSON_spec_absolute_time ("start_time",
&start_time),
GNUNET_JSON_spec_absolute_time ("end_time",
&end_time),
GNUNET_JSON_spec_fixed_auto ("master_sig",
&master_sig),
GNUNET_JSON_spec_end ()
};
if (GNUNET_OK !=
GNUNET_JSON_parse (value,
spec,
&err_name,
&err_line))
{
fprintf (stderr,
"Invalid input to set wire fee: %s#%u at %u (skipping)\n",
err_name,
err_line,
(unsigned int) idx);
return;
}
wfr = GNUNET_new (struct WireFeeRequest);
wfr->idx = idx;
wfr->h =
TALER_EXCHANGE_management_set_wire_fees (ctx,
exchange_url,
wire_method,
start_time,
end_time,
&wire_fee,
&closing_fee,
&master_sig,
&wire_fee_cb,
wfr);
GNUNET_CONTAINER_DLL_insert (wfr_head,
wfr_tail,
wfr);
}
/**
* Perform uploads based on the JSON in #io.
*
@ -877,6 +1031,10 @@ trigger_upload (const char *exchange_url)
.key = "disable-wire",
.cb = &upload_wire_del
},
{
.key = "set-wire-fee",
.cb = &upload_wire_fee
},
// FIXME: many more handlers here!
/* array termination */
{
@ -1197,6 +1355,89 @@ do_del_wire (char *const *args)
}
/**
* Set wire fees for the given year.
*
* @param args the array of command-line arguments to process next;
* args[0] must be the year, args[1] the wire fee and args[2]
* the closing fee.
*/
static void
do_set_wire_fee (char *const *args)
{
struct TALER_MasterSignatureP master_sig;
char dummy;
unsigned int year;
struct TALER_Amount wire_fee;
struct TALER_Amount closing_fee;
struct GNUNET_TIME_Absolute start_time;
struct GNUNET_TIME_Absolute end_time;
if (NULL != in)
{
fprintf (stderr,
"Downloaded data was not consumed, not setting wire fee\n");
GNUNET_SCHEDULER_shutdown ();
global_ret = 4;
return;
}
if ( (NULL == args[0]) ||
(NULL == args[1]) ||
(NULL == args[2]) ||
(NULL == args[3]) ||
( (1 != sscanf (args[0],
"%u%c",
&year,
&dummy)) &&
(0 != strcasecmp ("now",
args[0])) ) ||
(GNUNET_OK !=
TALER_string_to_amount (args[2],
&wire_fee)) ||
(GNUNET_OK !=
TALER_string_to_amount (args[3],
&closing_fee)) )
{
fprintf (stderr,
"You must use YEAR, METHOD, WIRE-FEE and CLOSING-FEE as arguments for this subcommand\n");
GNUNET_SCHEDULER_shutdown ();
global_ret = 5;
return;
}
if (0 == strcasecmp ("now",
args[0]))
year = GNUNET_TIME_get_current_year ();
if (GNUNET_OK !=
load_offline_key ())
return;
start_time = GNUNET_TIME_year_to_time (year);
end_time = GNUNET_TIME_year_to_time (year + 1);
TALER_exchange_offline_wire_fee_sign (args[1],
start_time,
end_time,
&wire_fee,
&closing_fee,
&master_priv,
&master_sig);
output_operation ("set-wire-fee",
json_pack ("{s:s, s:o, s:o, s:o, s:o, s:o}",
"wire_method",
args[1],
"start_time",
GNUNET_JSON_from_time_abs (start_time),
"end_time",
GNUNET_JSON_from_time_abs (end_time),
"wire_fee",
TALER_JSON_from_amount (&wire_fee),
"closing_fee",
TALER_JSON_from_amount (&closing_fee),
"master_sig",
GNUNET_JSON_from_data_auto (&master_sig)));
next (args + 4);
}
/**
* Function called with information about future keys. Dumps the JSON output
* (on success), either into an internal buffer or to stdout (depending on
@ -1309,6 +1550,12 @@ work (void *cls)
"disable wire account of the exchange (payto-URI must be given as argument)",
.cb = &do_del_wire
},
{
.name = "wire-fee",
.help =
"sign wire fees for the given year (year, wire fee and closing fee must be given as arguments)",
.cb = &do_set_wire_fee
},
{
.name = "upload",
.help =