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rgb-cln/lightningd/pay.c

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#include "pay.h"
#include <bitcoin/preimage.h>
#include <ccan/str/hex/hex.h>
#include <ccan/structeq/structeq.h>
#include <ccan/tal/str/str.h>
#include <common/bolt11.h>
#include <gossipd/gen_gossip_wire.h>
#include <lightningd/chaintopology.h>
#include <lightningd/jsonrpc.h>
#include <lightningd/jsonrpc_errors.h>
#include <lightningd/lightningd.h>
#include <lightningd/log.h>
#include <lightningd/options.h>
#include <lightningd/peer_control.h>
#include <lightningd/peer_htlcs.h>
#include <lightningd/subd.h>
#include <sodium/randombytes.h>
/*-----------------------------------------------------------------------------
Internal sendpay interface
-----------------------------------------------------------------------------*/
/* sendpay command */
struct sendpay_command {
struct list_node list;
struct sha256 payment_hash;
void (*cb)(const struct sendpay_result *, void*);
void *cbarg;
};
static void destroy_sendpay_command(struct sendpay_command *pc)
{
list_del(&pc->list);
}
/* Owned by cxt; if cxt is deleted, then cb will
* no longer be called. */
static struct sendpay_command *
new_sendpay_command(const tal_t *cxt,
const struct sha256 *payment_hash,
struct lightningd *ld,
void (*cb)(const struct sendpay_result *, void*),
void *cbarg)
{
struct sendpay_command *pc = tal(cxt, struct sendpay_command);
pc->payment_hash = *payment_hash;
pc->cb = cb;
pc->cbarg = cbarg;
list_add(&ld->sendpay_commands, &pc->list);
tal_add_destructor(pc, destroy_sendpay_command);
return pc;
}
/* Caller responsible for freeing ctx. */
static void sendpay_resolve(const tal_t *ctx,
struct lightningd *ld,
const struct sha256 *payment_hash,
const struct sendpay_result *result)
{
struct sendpay_command *pc;
struct sendpay_command *next;
list_for_each_safe(&ld->sendpay_commands, pc, next, list) {
if (!structeq(payment_hash, &pc->payment_hash))
continue;
/* Delete later (in our own caller) if callback did
* not delete. */
tal_steal(ctx, pc);
pc->cb(result, pc->cbarg);
}
}
static void sendpay_success(struct lightningd *ld,
const struct sha256 *payment_hash,
const struct preimage *payment_preimage)
{
const tal_t *tmpctx = tal_tmpctx(ld);
struct sendpay_result *result;
result = tal(tmpctx, struct sendpay_result);
result->succeeded = true;
result->preimage = *payment_preimage;
sendpay_resolve(tmpctx, ld, payment_hash, result);
tal_free(tmpctx);
}
static void sendpay_route_failure(struct lightningd *ld,
const struct sha256 *payment_hash,
bool retry_plausible,
struct routing_failure *fail,
const u8 *onionreply,
const char *details)
{
const tal_t *tmpctx = tal_tmpctx(ld);
struct sendpay_result *result;
result = tal(tmpctx, struct sendpay_result);
result->succeeded = false;
result->errorcode =
(!fail) ? PAY_UNPARSEABLE_ONION :
(!retry_plausible) ? PAY_DESTINATION_PERM_FAIL :
/*otherwise*/ PAY_TRY_OTHER_ROUTE ;
result->onionreply = onionreply;
result->routing_failure = fail;
result->details = details;
sendpay_resolve(tmpctx, ld, payment_hash, result);
tal_free(tmpctx);
}
/* Immediately fail during send_payment call. */
static void sendpay_fail_now(void (*cb)(const struct sendpay_result *, void*),
void *cbarg,
int errorcode,
char const *details)
{
const tal_t *tmpctx = tal_tmpctx(NULL);
struct sendpay_result *result;
result = tal(tmpctx, struct sendpay_result);
result->succeeded = false;
result->errorcode = errorcode;
result->details = details;
cb(result, cbarg);
tal_free(tmpctx);
}
/* Immediately fail during send_payment call. */
static void
sendpay_succeed_now(void (*cb)(const struct sendpay_result*, void*),
void *cbarg,
const struct preimage *payment_preimage)
{
const tal_t *tmpctx = tal_tmpctx(NULL);
struct sendpay_result *result;
result = tal(tmpctx, struct sendpay_result);
result->succeeded = true;
result->preimage = *payment_preimage;
cb(result, cbarg);
tal_free(tmpctx);
}
void payment_succeeded(struct lightningd *ld, struct htlc_out *hout,
const struct preimage *rval)
{
wallet_payment_set_status(ld->wallet, &hout->payment_hash,
PAYMENT_COMPLETE, rval);
sendpay_success(ld, &hout->payment_hash, rval);
}
/* Return NULL if the wrapped onion error message has no
* channel_update field, or return the embedded
* channel_update message otherwise. */
static u8 *channel_update_from_onion_error(const tal_t *ctx,
const u8 *onion_message)
{
u8 *channel_update = NULL;
u64 unused64;
u32 unused32;
/* Identify failcodes that have some channel_update.
*
* TODO > BOLT 1.0: Add new failcodes when updating to a
* new BOLT version. */
if (!fromwire_temporary_channel_failure(ctx,
onion_message,
&channel_update) &&
!fromwire_amount_below_minimum(ctx,
onion_message, &unused64,
&channel_update) &&
!fromwire_fee_insufficient(ctx,
onion_message, &unused64,
&channel_update) &&
!fromwire_incorrect_cltv_expiry(ctx,
onion_message, &unused32,
&channel_update) &&
!fromwire_expiry_too_soon(ctx,
onion_message,
&channel_update))
/* No channel update. */
channel_update = NULL;
return channel_update;
}
/* Return a struct routing_failure for an immediate failure
* (returned directly from send_htlc_out). The returned
* failure is allocated from the given context. */
static struct routing_failure*
immediate_routing_failure(const tal_t *ctx,
const struct lightningd *ld,
enum onion_type failcode,
const struct short_channel_id *channel0)
{
struct routing_failure *routing_failure;
assert(failcode);
routing_failure = tal(ctx, struct routing_failure);
routing_failure->erring_index = 0;
routing_failure->failcode = failcode;
routing_failure->erring_node = ld->id;
routing_failure->erring_channel = *channel0;
routing_failure->channel_update = NULL;
return routing_failure;
}
/* Return a struct routing_failure for a local failure allocated
* from the given context. */
static struct routing_failure*
local_routing_failure(const tal_t *ctx,
const struct lightningd *ld,
const struct htlc_out *hout,
const struct wallet_payment *payment)
{
struct routing_failure *routing_failure;
assert(hout->failcode);
routing_failure = tal(ctx, struct routing_failure);
routing_failure->erring_index = 0;
routing_failure->failcode = hout->failcode;
routing_failure->erring_node = ld->id;
routing_failure->erring_channel = payment->route_channels[0];
routing_failure->channel_update = NULL;
return routing_failure;
}
/* Return false if permanent failure at the destination, true if
* retrying is plausible. Fill *routing_failure with NULL if
* we cannot report the remote failure, or with the routing
* failure to report (allocated from ctx) otherwise. */
static struct routing_failure*
remote_routing_failure(const tal_t *ctx,
bool *p_retry_plausible,
bool *p_report_to_gossipd,
const struct wallet_payment *payment,
const struct onionreply *failure)
{
enum onion_type failcode = fromwire_peektype(failure->msg);
u8 *channel_update;
struct routing_failure *routing_failure;
const struct pubkey *route_nodes;
const struct pubkey *erring_node;
const struct short_channel_id *route_channels;
const struct short_channel_id *erring_channel;
static const struct short_channel_id dummy_channel = { 0, 0, 0 };
int origin_index;
bool retry_plausible;
bool report_to_gossipd;
routing_failure = tal(ctx, struct routing_failure);
route_nodes = payment->route_nodes;
route_channels = payment->route_channels;
origin_index = failure->origin_index;
channel_update
= channel_update_from_onion_error(routing_failure,
failure->msg);
retry_plausible = true;
report_to_gossipd = true;
assert(origin_index < tal_count(route_nodes));
/* Check if at destination. */
if (origin_index == tal_count(route_nodes) - 1) {
erring_channel = &dummy_channel;
/* BOLT #4:
*
* - if the _final node_ is returning the error:
* - if the PERM bit is set:
* - SHOULD fail the payment.
* */
if (failcode & PERM)
retry_plausible = false;
else
retry_plausible = true;
/* Only send message to gossipd if NODE error;
* there is no "next" channel to report as
* failing if this is the last node. */
if (failcode & NODE)
report_to_gossipd = true;
else
report_to_gossipd = false;
} else
/* Report the *next* channel as failing. */
erring_channel = &route_channels[origin_index + 1];
erring_node = &route_nodes[origin_index];
routing_failure->erring_index = (unsigned int) (origin_index + 1);
routing_failure->failcode = failcode;
routing_failure->erring_node = *erring_node;
routing_failure->erring_channel = *erring_channel;
routing_failure->channel_update = channel_update;
*p_retry_plausible = retry_plausible;
*p_report_to_gossipd = report_to_gossipd;
return routing_failure;
}
static void random_mark_channel_unroutable(struct log *log,
struct subd *gossip,
struct short_channel_id *route_channels)
{
const tal_t *tmpctx = tal_tmpctx(gossip);
size_t num_channels = tal_count(route_channels);
size_t i;
const struct short_channel_id *channel;
u8 *msg;
assert(num_channels != 0);
/* Select one channel by random. */
randombytes_buf(&i, sizeof(i));
i = i % num_channels;
channel = &route_channels[i];
log_debug(log,
"Disable randomly %dth channel (%s) along route "
"(guessing due to bad reply)",
(int) i,
type_to_string(tmpctx, struct short_channel_id,
channel));
msg = towire_gossip_mark_channel_unroutable(tmpctx, channel);
subd_send_msg(gossip, msg);
tal_free(tmpctx);
}
static void report_routing_failure(struct log *log,
struct subd *gossip,
struct routing_failure *fail)
{
const tal_t *tmpctx = tal_tmpctx(gossip);
u8 *gossip_msg;
assert(fail);
log_debug(log,
"Reporting route failure to gossipd: 0x%04x (%s) "
"node %s channel %s update %s",
fail->failcode, onion_type_name(fail->failcode),
type_to_string(tmpctx, struct pubkey,
&fail->erring_node),
type_to_string(tmpctx, struct short_channel_id,
&fail->erring_channel),
tal_hex(tmpctx, fail->channel_update));
gossip_msg = towire_gossip_routing_failure(tmpctx,
&fail->erring_node,
&fail->erring_channel,
(u16) fail->failcode,
fail->channel_update);
subd_send_msg(gossip, gossip_msg);
tal_free(tmpctx);
}
void payment_failed(struct lightningd *ld, const struct htlc_out *hout,
const char *localfail)
{
struct onionreply *reply;
enum onion_type failcode;
struct secret *path_secrets;
struct wallet_payment *payment;
const tal_t *tmpctx = tal_tmpctx(ld);
struct routing_failure* fail = NULL;
const char *failmsg;
bool retry_plausible;
bool report_to_gossipd;
payment = wallet_payment_by_hash(tmpctx, ld->wallet,
&hout->payment_hash);
/* FIXME: Prior to 299b280f7, we didn't put route_nodes and
* route_channels in db. If this happens, it's an old payment,
* so we can simply mark it failed in db and return. */
if (!payment->route_channels) {
log_unusual(hout->key.channel->log,
"No route_channels for htlc %s:"
" was this an old database?",
type_to_string(ltmp, struct sha256,
&hout->payment_hash));
wallet_payment_set_status(ld->wallet, &hout->payment_hash,
PAYMENT_FAILED, NULL);
tal_free(tmpctx);
return;
}
/* This gives more details than a generic failure message */
if (localfail) {
fail = local_routing_failure(tmpctx, ld, hout, payment);
failcode = fail->failcode;
failmsg = localfail;
retry_plausible = true;
report_to_gossipd = true;
} else {
/* Must be remote fail. */
assert(!hout->failcode);
failmsg = "reply from remote";
/* Try to parse reply. */
path_secrets = payment->path_secrets;
reply = unwrap_onionreply(tmpctx, path_secrets,
tal_count(path_secrets),
hout->failuremsg);
if (!reply) {
log_info(hout->key.channel->log,
"htlc %"PRIu64" failed with bad reply (%s)",
hout->key.id,
tal_hex(ltmp, hout->failuremsg));
/* Cannot report failure. */
fail = NULL;
failcode = WIRE_PERMANENT_NODE_FAILURE;
/* Select a channel to mark unroutable by random */
random_mark_channel_unroutable(hout->key.channel->log,
ld->gossip,
payment->route_channels);
/* Can now retry; we selected a channel to mark
* unroutable by random */
retry_plausible = true;
/* Already reported something to gossipd, do not
* report anything else */
report_to_gossipd = false;
} else {
failcode = fromwire_peektype(reply->msg);
log_info(hout->key.channel->log,
"htlc %"PRIu64" "
"failed from %ith node "
"with code 0x%04x (%s)",
hout->key.id,
reply->origin_index,
failcode, onion_type_name(failcode));
fail = remote_routing_failure(tmpctx,
&retry_plausible,
&report_to_gossipd,
payment, reply);
}
}
/* This may invalidated the payment structure returned, so
* access to payment object should not be done after the
* below call. */
wallet_payment_set_status(ld->wallet, &hout->payment_hash,
PAYMENT_FAILED, NULL);
/* Report to gossipd if we decided we should. */
if (report_to_gossipd)
report_routing_failure(ld->log, ld->gossip, fail);
/* Report to client. */
sendpay_route_failure(ld, &hout->payment_hash,
retry_plausible, fail, hout->failuremsg,
failmsg);
tal_free(tmpctx);
}
/* Returns false if we called callback directly, true if
* callback is scheduled for later.
*
* This call expects that if it calls the callback, then
* the given context should have been freed. */
bool send_payment(const tal_t *ctx,
struct lightningd* ld,
const struct sha256 *rhash,
const struct route_hop *route,
void (*cb)(const struct sendpay_result*, void*),
void *cbarg)
{
const u8 *onion;
u8 sessionkey[32];
unsigned int base_expiry;
struct onionpacket *packet;
struct secret *path_secrets;
enum onion_type failcode;
const tal_t *tmpctx = tal_tmpctx(ctx);
size_t i, n_hops = tal_count(route);
struct hop_data *hop_data = tal_arr(tmpctx, struct hop_data, n_hops);
struct pubkey *ids = tal_arr(tmpctx, struct pubkey, n_hops);
struct wallet_payment *payment = NULL;
struct htlc_out *hout;
struct short_channel_id *channels;
struct routing_failure *fail;
struct channel *channel;
/* Expiry for HTLCs is absolute. And add one to give some margin. */
base_expiry = get_block_height(ld->topology) + 1;
/* Extract IDs for each hop: create_onionpacket wants array. */
for (i = 0; i < n_hops; i++)
ids[i] = route[i].nodeid;
/* Copy hop_data[n] from route[n+1] (ie. where it goes next) */
for (i = 0; i < n_hops - 1; i++) {
hop_data[i].realm = 0;
hop_data[i].channel_id = route[i+1].channel_id;
hop_data[i].amt_forward = route[i+1].amount;
hop_data[i].outgoing_cltv = base_expiry + route[i+1].delay;
}
/* And finally set the final hop to the special values in
* BOLT04 */
hop_data[i].realm = 0;
hop_data[i].outgoing_cltv = base_expiry + route[i].delay;
memset(&hop_data[i].channel_id, 0, sizeof(struct short_channel_id));
hop_data[i].amt_forward = route[i].amount;
/* Now, do we already have a payment? */
payment = wallet_payment_by_hash(tmpctx, ld->wallet, rhash);
if (payment) {
/* FIXME: We should really do something smarter here! */
log_debug(ld->log, "send_payment: found previous");
if (payment->status == PAYMENT_PENDING) {
log_add(ld->log, "Payment is still in progress");
sendpay_fail_now(cb, cbarg, PAY_IN_PROGRESS,
"Payment is still in progress");
return false;
}
if (payment->status == PAYMENT_COMPLETE) {
log_add(ld->log, "... succeeded");
/* Must match successful payment parameters. */
if (payment->msatoshi != hop_data[n_hops-1].amt_forward) {
char *msg = tal_fmt(tmpctx,
"Already succeeded "
"with amount %"PRIu64,
payment->msatoshi);
sendpay_fail_now(cb, cbarg,
PAY_RHASH_ALREADY_USED,
msg);
return false;
}
if (!structeq(&payment->destination, &ids[n_hops-1])) {
char *msg = tal_fmt(tmpctx,
"Already succeeded to %s",
type_to_string(tmpctx,
struct pubkey,
&payment->destination));
sendpay_fail_now(cb, cbarg,
PAY_RHASH_ALREADY_USED,
msg);
return false;
}
sendpay_succeed_now(cb, cbarg,
payment->payment_preimage);
return false;
}
wallet_payment_delete(ld->wallet, rhash);
log_add(ld->log, "... retrying");
}
/* At this point we know there is no duplicate payment.
* Register it to the lightningd. Use the caller
* context, not our temporary context. */
new_sendpay_command(ctx, rhash, ld, cb, cbarg);
channel = active_channel_by_id(ld, &ids[0], NULL);
if (!channel) {
/* Report routing failure to gossipd */
fail = immediate_routing_failure(tmpctx, ld,
WIRE_UNKNOWN_NEXT_PEER,
&route[0].channel_id);
report_routing_failure(ld->log, ld->gossip, fail);
/* Report routing failure to user */
sendpay_route_failure(ld, rhash, true, fail, NULL,
"No connection to first "
"peer found");
return false;
}
randombytes_buf(&sessionkey, sizeof(sessionkey));
/* Onion will carry us from first peer onwards. */
packet = create_onionpacket(tmpctx, ids, hop_data, sessionkey, rhash->u.u8,
sizeof(struct sha256), &path_secrets);
onion = serialize_onionpacket(tmpctx, packet);
log_info(ld->log, "Sending %u over %zu hops to deliver %u",
route[0].amount, n_hops, route[n_hops-1].amount);
failcode = send_htlc_out(channel, route[0].amount,
base_expiry + route[0].delay,
rhash, onion, NULL, &hout);
if (failcode) {
/* Report routing failure to gossipd */
fail = immediate_routing_failure(tmpctx, ld,
failcode,
&route[0].channel_id);
report_routing_failure(ld->log, ld->gossip, fail);
/* Report routing failure to user */
sendpay_route_failure(ld, rhash, true, fail, NULL,
"First peer not ready");
return false;
}
/* Copy channels used along the route. */
channels = tal_arr(tmpctx, struct short_channel_id, n_hops);
for (i = 0; i < n_hops; ++i)
channels[i] = route[i].channel_id;
/* If hout fails, payment should be freed too. */
payment = tal(hout, struct wallet_payment);
payment->id = 0;
payment->payment_hash = *rhash;
payment->destination = ids[n_hops - 1];
payment->status = PAYMENT_PENDING;
payment->msatoshi = route[n_hops-1].amount;
payment->timestamp = time_now().ts.tv_sec;
payment->payment_preimage = NULL;
payment->path_secrets = tal_steal(payment, path_secrets);
payment->route_nodes = tal_steal(payment, ids);
payment->route_channels = tal_steal(payment, channels);
/* We write this into db when HTLC is actually sent. */
wallet_payment_setup(ld->wallet, payment);
tal_free(tmpctx);
return true;
}
/*-----------------------------------------------------------------------------
JSON-RPC sendpay interface
-----------------------------------------------------------------------------*/
static void
json_sendpay_success(struct command *cmd,
const struct preimage *payment_preimage)
{
struct json_result *response;
response = new_json_result(cmd);
json_object_start(response, NULL);
json_add_hex(response, "preimage",
payment_preimage, sizeof(*payment_preimage));
json_object_end(response);
command_success(cmd, response);
}
static void json_sendpay_on_resolve(const struct sendpay_result *r,
void *vcmd)
{
struct command *cmd = (struct command*) vcmd;
struct json_result *data = NULL;
const char *msg = NULL;
struct routing_failure *fail;
if (r->succeeded)
json_sendpay_success(cmd, &r->preimage);
else {
switch (r->errorcode) {
case PAY_IN_PROGRESS:
case PAY_RHASH_ALREADY_USED:
data = NULL;
msg = r->details;
break;
case PAY_UNPARSEABLE_ONION:
data = new_json_result(cmd);
json_object_start(data, NULL);
json_add_hex(data, "onionreply",
r->onionreply, tal_len(r->onionreply));
json_object_end(data);
msg = tal_fmt(cmd,
"failed: WIRE_PERMANENT_NODE_FAILURE "
"(%s)",
r->details);
break;
case PAY_DESTINATION_PERM_FAIL:
case PAY_TRY_OTHER_ROUTE:
fail = r->routing_failure;
data = new_json_result(cmd);
json_object_start(data, NULL);
json_add_num(data, "erring_index",
fail->erring_index);
json_add_num(data, "failcode",
(unsigned) fail->failcode);
json_add_hex(data, "erring_node",
&fail->erring_node,
sizeof(fail->erring_node));
json_add_short_channel_id(data, "erring_channel",
&fail->erring_channel);
if (fail->channel_update)
json_add_hex(data, "channel_update",
fail->channel_update,
tal_len(fail->channel_update));
json_object_end(data);
msg = tal_fmt(cmd,
"failed: %s (%s)",
onion_type_name(fail->failcode),
r->details);
break;
}
assert(msg);
command_fail_detailed(cmd, r->errorcode, data, "%s", msg);
}
}
static void json_sendpay(struct command *cmd,
const char *buffer, const jsmntok_t *params)
{
jsmntok_t *routetok, *rhashtok;
const jsmntok_t *t, *end;
size_t n_hops;
struct sha256 rhash;
struct route_hop *route;
if (!json_get_params(cmd, buffer, params,
"route", &routetok,
"rhash", &rhashtok,
NULL)) {
return;
}
if (!hex_decode(buffer + rhashtok->start,
rhashtok->end - rhashtok->start,
&rhash, sizeof(rhash))) {
command_fail(cmd, "'%.*s' is not a valid sha256 hash",
rhashtok->end - rhashtok->start,
buffer + rhashtok->start);
return;
}
if (routetok->type != JSMN_ARRAY) {
command_fail(cmd, "'%.*s' is not an array",
routetok->end - routetok->start,
buffer + routetok->start);
return;
}
end = json_next(routetok);
n_hops = 0;
route = tal_arr(cmd, struct route_hop, n_hops);
for (t = routetok + 1; t < end; t = json_next(t)) {
const jsmntok_t *amttok, *idtok, *delaytok, *chantok;
if (t->type != JSMN_OBJECT) {
command_fail(cmd, "Route %zu '%.*s' is not an object",
n_hops,
t->end - t->start,
buffer + t->start);
return;
}
amttok = json_get_member(buffer, t, "msatoshi");
idtok = json_get_member(buffer, t, "id");
delaytok = json_get_member(buffer, t, "delay");
chantok = json_get_member(buffer, t, "channel");
if (!amttok || !idtok || !delaytok || !chantok) {
command_fail(cmd, "Route %zu needs msatoshi/id/channel/delay",
n_hops);
return;
}
tal_resize(&route, n_hops + 1);
/* What that hop will forward */
if (!json_tok_number(buffer, amttok, &route[n_hops].amount)) {
command_fail(cmd, "Route %zu invalid msatoshi",
n_hops);
return;
}
if (!json_tok_short_channel_id(buffer, chantok,
&route[n_hops].channel_id)) {
command_fail(cmd, "Route %zu invalid channel_id", n_hops);
return;
}
if (!json_tok_pubkey(buffer, idtok, &route[n_hops].nodeid)) {
command_fail(cmd, "Route %zu invalid id", n_hops);
return;
}
if (!json_tok_number(buffer, delaytok, &route[n_hops].delay)) {
command_fail(cmd, "Route %zu invalid delay", n_hops);
return;
}
n_hops++;
}
if (n_hops == 0) {
command_fail(cmd, "Empty route");
return;
}
if (send_payment(cmd, cmd->ld, &rhash, route,
&json_sendpay_on_resolve, cmd))
command_still_pending(cmd);
}
static const struct json_command sendpay_command = {
"sendpay",
json_sendpay,
"Send along {route} in return for preimage of {rhash}"
};
AUTODATA(json_command, &sendpay_command);
static void json_listpayments(struct command *cmd, const char *buffer,
const jsmntok_t *params)
{
const struct wallet_payment **payments;
struct json_result *response = new_json_result(cmd);
jsmntok_t *bolt11tok, *rhashtok;
struct sha256 *rhash = NULL;
if (!json_get_params(cmd, buffer, params,
"?bolt11", &bolt11tok,
"?payment_hash", &rhashtok,
NULL)) {
return;
}
if (bolt11tok) {
struct bolt11 *b11;
char *b11str, *fail;
if (rhashtok) {
command_fail(cmd, "Can only specify one of"
" {bolt11} or {payment_hash}");
return;
}
b11str = tal_strndup(cmd, buffer + bolt11tok->start,
bolt11tok->end - bolt11tok->start);
b11 = bolt11_decode(cmd, b11str, NULL, &fail);
if (!b11) {
command_fail(cmd, "Invalid bolt11: %s", fail);
return;
}
rhash = &b11->payment_hash;
} else if (rhashtok) {
rhash = tal(cmd, struct sha256);
if (!hex_decode(buffer + rhashtok->start,
rhashtok->end - rhashtok->start,
rhash, sizeof(*rhash))) {
command_fail(cmd, "'%.*s' is not a valid sha256 hash",
rhashtok->end - rhashtok->start,
buffer + rhashtok->start);
return;
}
}
payments = wallet_payment_list(cmd, cmd->ld->wallet, rhash);
json_object_start(response, NULL);
json_array_start(response, "payments");
for (int i=0; i<tal_count(payments); i++) {
const struct wallet_payment *t = payments[i];
json_object_start(response, NULL);
json_add_u64(response, "id", t->id);
json_add_hex(response, "payment_hash", &t->payment_hash, sizeof(t->payment_hash));
json_add_pubkey(response, "destination", &t->destination);
json_add_u64(response, "msatoshi", t->msatoshi);
if (deprecated_apis)
json_add_u64(response, "timestamp", t->timestamp);
json_add_u64(response, "created_at", t->timestamp);
switch (t->status) {
case PAYMENT_PENDING:
json_add_string(response, "status", "pending");
break;
case PAYMENT_COMPLETE:
json_add_string(response, "status", "complete");
break;
case PAYMENT_FAILED:
json_add_string(response, "status", "failed");
break;
}
if (t->payment_preimage)
json_add_hex(response, "payment_preimage",
t->payment_preimage,
sizeof(*t->payment_preimage));
json_object_end(response);
}
json_array_end(response);
json_object_end(response);
command_success(cmd, response);
}
static const struct json_command listpayments_command = {
"listpayments",
json_listpayments,
"Show outgoing payments"
};
AUTODATA(json_command, &listpayments_command);
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