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593f1e7365
core-lightning/plugins/bkpr/bookkeeper.c
niftynei 593f1e7365 bkpr: add a 'listincome' event 
list the income/expense events for a node.
2022-07-28 12:08:18 +09:30

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#include "config.h"
#include <ccan/array_size/array_size.h>
#include <ccan/cast/cast.h>
#include <ccan/tal/str/str.h>
#include <ccan/time/time.h>
#include <common/coin_mvt.h>
#include <common/json_param.h>
#include <common/json_stream.h>
#include <common/memleak.h>
#include <common/type_to_string.h>
#include <db/exec.h>
#include <plugins/bkpr/account.h>
#include <plugins/bkpr/account_entry.h>
#include <plugins/bkpr/chain_event.h>
#include <plugins/bkpr/channel_event.h>
#include <plugins/bkpr/db.h>
#include <plugins/bkpr/incomestmt.h>
#include <plugins/bkpr/onchain_fee.h>
#include <plugins/bkpr/recorder.h>
#include <plugins/libplugin.h>
#define CHAIN_MOVE "chain_mvt"
#define CHANNEL_MOVE "channel_mvt"
/* The database that we store all the accounting data in */
static struct db *db ;
// FIXME: make relative to directory we're loaded into
static char *db_dsn = "sqlite3://accounts.sqlite3";
static struct fee_sum *find_sum_for_txid(struct fee_sum **sums,
struct bitcoin_txid *txid)
{
for (size_t i = 0; i < tal_count(sums); i++) {
if (bitcoin_txid_eq(txid, sums[i]->txid))
return sums[i];
}
return NULL;
}
static struct command_result *json_list_income(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
struct json_stream *res;
struct income_event **evs;
if (!param(cmd, buf, params,
NULL))
return command_param_failed();
/* Ok, go find me some income events! */
db_begin_transaction(db);
evs = list_income_events_all(cmd, db);
db_commit_transaction(db);
res = jsonrpc_stream_success(cmd);
json_array_start(res, "income_events");
for (size_t i = 0; i < tal_count(evs); i++)
json_add_income_event(res, evs[i]);
json_array_end(res);
return command_finished(cmd, res);
}
static struct command_result *json_inspect(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
struct json_stream *res;
struct account *acct;
const char *acct_name;
struct fee_sum **fee_sums;
struct txo_set **txos;
/* Only available for channel accounts? */
if (!param(cmd, buf, params,
p_opt("account", param_string, &acct_name),
NULL))
return command_param_failed();
if (!acct_name)
return command_fail(cmd, PLUGIN_ERROR,
"Account not provided");
if (streq(acct_name, WALLET_ACCT)
|| streq(acct_name, EXTERNAL_ACCT))
return command_fail(cmd, PLUGIN_ERROR,
"`inspect` not supported for"
" non-channel accounts");
db_begin_transaction(db);
acct = find_account(cmd, db, acct_name);
db_commit_transaction(db);
if (!acct)
return command_fail(cmd, PLUGIN_ERROR,
"Account %s not found",
acct_name);
db_begin_transaction(db);
find_txo_chain(cmd, db, acct, &txos);
fee_sums = find_account_onchain_fees(cmd, db, acct);
db_commit_transaction(db);
res = jsonrpc_stream_success(cmd);
json_array_start(res, "txs");
for (size_t i = 0; i < tal_count(txos); i++) {
struct txo_set *set = txos[i];
struct fee_sum *fee_sum;
json_object_start(res, NULL);
json_add_txid(res, "txid", set->txid);
/* annoyting, but we can only add the block height
* if we have a txo for it */
for (size_t j = 0; j < tal_count(set->pairs); j++) {
if (set->pairs[j]->txo
&& set->pairs[j]->txo->blockheight > 0) {
json_add_num(res, "blockheight",
set->pairs[j]->txo->blockheight);
break;
}
}
fee_sum = find_sum_for_txid(fee_sums, set->txid);
if (fee_sum)
json_add_amount_msat_only(res, "fees_paid",
fee_sum->fees_paid);
else
json_add_amount_msat_only(res, "fees_paid",
AMOUNT_MSAT(0));
json_array_start(res, "outputs");
for (size_t j = 0; j < tal_count(set->pairs); j++) {
struct txo_pair *pr = set->pairs[j];
/* Is this an event that belongs to this account? */
if (pr->txo) {
if (pr->txo->origin_acct) {
if (!streq(pr->txo->origin_acct, acct->name))
continue;
} else if (pr->txo->acct_db_id != acct->db_id
/* We make an exception for wallet events */
&& !streq(pr->txo->acct_name, WALLET_ACCT))
continue;
} else if (pr->spend
&& pr->spend->acct_db_id != acct->db_id)
continue;
json_object_start(res, NULL);
if (set->pairs[j]->txo) {
struct chain_event *ev = set->pairs[j]->txo;
json_add_string(res, "account", ev->acct_name);
json_add_num(res, "outnum",
ev->outpoint.n);
json_add_string(res, "output_tag", ev->tag);
json_add_amount_msat_only(res, "output_value",
ev->output_value);
json_add_amount_msat_only(res, "credit",
ev->credit);
json_add_string(res, "currency", ev->currency);
if (ev->origin_acct)
json_add_string(res, "originating_account",
ev->origin_acct);
}
if (set->pairs[j]->spend) {
struct chain_event *ev = set->pairs[j]->spend;
/* If we didn't already populate this info */
if (!set->pairs[j]->txo) {
json_add_string(res, "account",
ev->acct_name);
json_add_num(res, "outnum",
ev->outpoint.n);
json_add_amount_msat_only(res, "output_value",
ev->output_value);
json_add_string(res, "currency",
ev->currency);
}
json_add_string(res, "spend_tag", ev->tag);
json_add_txid(res, "spending_txid",
ev->spending_txid);
json_add_amount_msat_only(res, "debit", ev->debit);
if (ev->payment_id)
json_add_sha256(res, "payment_id",
ev->payment_id);
}
json_object_end(res);
}
json_array_end(res);
json_object_end(res);
}
json_array_end(res);
return command_finished(cmd, res);
}
/* Find all the events for this account, ordered by timestamp */
static struct command_result *json_list_account_events(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
struct json_stream *res;
struct account *acct;
const char *acct_name;
struct channel_event **channel_events;
struct chain_event **chain_events;
struct onchain_fee **onchain_fees;
if (!param(cmd, buf, params,
p_opt("account", param_string, &acct_name),
NULL))
return command_param_failed();
if (acct_name) {
db_begin_transaction(db);
acct = find_account(cmd, db, acct_name);
db_commit_transaction(db);
if (!acct)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"Account '%s' not found",
acct_name);
} else
acct = NULL;
db_begin_transaction(db);
if (acct) {
channel_events = account_get_channel_events(cmd, db, acct);
chain_events = account_get_chain_events(cmd, db, acct);
onchain_fees = account_get_chain_fees(cmd, db, acct);
} else {
channel_events = list_channel_events(cmd, db);
chain_events = list_chain_events(cmd, db);
onchain_fees = list_chain_fees(cmd, db);
}
db_commit_transaction(db);
res = jsonrpc_stream_success(cmd);
json_array_start(res, "events");
for (size_t i = 0, j = 0, k = 0;
i < tal_count(chain_events)
|| j < tal_count(channel_events)
|| k < tal_count(onchain_fees);
/* Incrementing happens inside loop */) {
struct channel_event *chan;
struct chain_event *chain;
struct onchain_fee *fee;
u64 lowest = 0;
if (i < tal_count(chain_events))
chain = chain_events[i];
else
chain = NULL;
if (j < tal_count(channel_events))
chan = channel_events[j];
else
chan = NULL;
if (k < tal_count(onchain_fees))
fee = onchain_fees[k];
else
fee = NULL;
if (chain)
lowest = chain->timestamp;
if (chan
&& (lowest == 0 || lowest > chan->timestamp))
lowest = chan->timestamp;
if (fee
&& (lowest == 0 || lowest > fee->timestamp))
lowest = fee->timestamp;
/* chain events first, then channel events, then fees. */
if (chain && chain->timestamp == lowest) {
json_add_chain_event(res, chain);
i++;
continue;
}
if (chan && chan->timestamp == lowest) {
json_add_channel_event(res, chan);
j++;
continue;
}
/* Last thing left is the fee */
json_add_onchain_fee(res, fee);
k++;
}
json_array_end(res);
return command_finished(cmd, res);
}
static struct command_result *json_list_balances(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
struct json_stream *res;
struct account **accts;
char *err;
if (!param(cmd, buf, params, NULL))
return command_param_failed();
res = jsonrpc_stream_success(cmd);
/* List of accts */
db_begin_transaction(db);
accts = list_accounts(cmd, db);
json_array_start(res, "accounts");
for (size_t i = 0; i < tal_count(accts); i++) {
struct acct_balance **balances;
err = account_get_balance(cmd, db,
accts[i]->name,
true,
&balances);
if (err)
plugin_err(cmd->plugin,
"Get account balance returned err"
" for account %s: %s",
accts[i]->name, err);
/* Skip the external acct balance, it's effectively
* meaningless */
if (streq(accts[i]->name, EXTERNAL_ACCT))
continue;
/* Add it to the result data */
json_object_start(res, NULL);
json_add_string(res, "account", accts[i]->name);
json_array_start(res, "balances");
for (size_t j = 0; j < tal_count(balances); j++) {
json_object_start(res, NULL);
json_add_amount_msat_only(res, "balance",
balances[j]->balance);
json_add_string(res, "coin_type",
balances[j]->currency);
json_object_end(res);
}
json_array_end(res);
json_object_end(res);
}
json_array_end(res);
db_commit_transaction(db);
return command_finished(cmd, res);
}
struct new_account_info {
struct account *acct;
struct amount_msat curr_bal;
u32 timestamp;
char *currency;
};
static void try_update_open_fees(struct command *cmd,
struct account *acct)
{
struct chain_event *ev;
char *err;
assert(acct->closed_event_db_id);
ev = find_chain_event_by_id(cmd, db, *acct->closed_event_db_id);
assert(ev);
err = maybe_update_onchain_fees(cmd, db, ev->spending_txid);
if (err)
plugin_err(cmd->plugin,
"failure updating chain fees:"
" %s", err);
}
static bool new_missed_channel_account(struct command *cmd,
const char *buf,
const jsmntok_t *result,
struct account *acct,
const char *currency,
u64 timestamp)
{
struct chain_event *chain_ev;
size_t i, j;
const jsmntok_t *curr_peer, *curr_chan,
*peer_arr_tok, *chan_arr_tok;
peer_arr_tok = json_get_member(buf, result, "peers");
assert(peer_arr_tok->type == JSMN_ARRAY);
/* There should only be one peer */
json_for_each_arr(i, curr_peer, peer_arr_tok) {
chan_arr_tok = json_get_member(buf, curr_peer,
"channels");
assert(chan_arr_tok->type == JSMN_ARRAY);
json_for_each_arr(j, curr_chan, chan_arr_tok) {
struct bitcoin_outpoint opt;
struct amount_msat amt, remote_amt, push_amt,
push_credit, push_debit;
char *opener, *chan_id;
const char *err;
enum mvt_tag *tags;
bool ok;
err = json_scan(tmpctx, buf, curr_chan,
"{channel_id:%,"
"funding_txid:%,"
"funding_outnum:%,"
"funding:{local_msat:%,"
"remote_msat:%,"
"pushed_msat:%},"
"opener:%}",
JSON_SCAN_TAL(tmpctx, json_strdup, &chan_id),
JSON_SCAN(json_to_txid, &opt.txid),
JSON_SCAN(json_to_number, &opt.n),
JSON_SCAN(json_to_msat, &amt),
JSON_SCAN(json_to_msat, &remote_amt),
JSON_SCAN(json_to_msat, &push_amt),
JSON_SCAN_TAL(tmpctx, json_strdup, &opener));
if (err)
plugin_err(cmd->plugin,
"failure scanning listpeer"
" result: %s", err);
if (!streq(chan_id, acct->name))
continue;
chain_ev = tal(cmd, struct chain_event);
chain_ev->tag = mvt_tag_str(CHANNEL_OPEN);
chain_ev->debit = AMOUNT_MSAT(0);
ok = amount_msat_add(&chain_ev->output_value, amt, remote_amt);
assert(ok);
chain_ev->currency = tal_strdup(chain_ev, currency);
chain_ev->origin_acct = NULL;
/* 2s before the channel opened, minimum */
chain_ev->timestamp = timestamp - 2;
chain_ev->blockheight = 0;
chain_ev->outpoint = opt;
chain_ev->spending_txid = NULL;
chain_ev->payment_id = NULL;
/* Update the account info too */
tags = tal_arr(chain_ev, enum mvt_tag, 1);
tags[0] = CHANNEL_OPEN;
/* Leased/pushed channels have some extra work */
if (streq(opener, "local")) {
tal_arr_expand(&tags, OPENER);
ok = amount_msat_add(&amt, amt, push_amt);
push_credit = AMOUNT_MSAT(0);
push_debit = push_amt;
} else {
ok = amount_msat_sub(&amt, amt, push_amt);
push_credit = push_amt;
push_debit = AMOUNT_MSAT(0);
}
/* We assume pushes are all leases, even
* though they might just be pushes */
if (!amount_msat_zero(push_amt))
tal_arr_expand(&tags, LEASED);
assert(ok);
chain_ev->credit = amt;
db_begin_transaction(db);
log_chain_event(db, acct, chain_ev);
maybe_update_account(db, acct, chain_ev, tags, 0);
maybe_update_onchain_fees(cmd, db, &opt.txid);
/* We won't count the close's fees if we're
* *not* the opener, which we didn't know
* until now, so now try to update the
* fees for the close tx's spending_txid..*/
if (acct->closed_event_db_id)
try_update_open_fees(cmd, acct);
/* We log a channel event for the push amt */
if (!amount_msat_zero(push_amt)) {
struct channel_event *chan_ev;
char *chan_tag;
chan_tag = tal_fmt(tmpctx, "%s",
mvt_tag_str(LEASE_FEE));
chan_ev = new_channel_event(tmpctx,
chan_tag,
push_credit,
push_debit,
AMOUNT_MSAT(0),
currency,
NULL, 0,
timestamp - 1);
log_channel_event(db, acct, chan_ev);
}
db_commit_transaction(db);
return true;
}
}
return false;
}
/* Net out credit/debit --> basically find the diff */
static char *msat_net(const tal_t *ctx,
struct amount_msat credit,
struct amount_msat debit,
struct amount_msat *credit_net,
struct amount_msat *debit_net)
{
if (amount_msat_eq(credit, debit)) {
*credit_net = AMOUNT_MSAT(0);
*debit_net = AMOUNT_MSAT(0);
} else if (amount_msat_greater(credit, debit)) {
if (!amount_msat_sub(credit_net, credit, debit))
return tal_fmt(ctx, "unexpected fail, can't sub."
" %s - %s",
type_to_string(ctx, struct amount_msat,
&credit),
type_to_string(ctx, struct amount_msat,
&debit));
*debit_net = AMOUNT_MSAT(0);
} else {
if (!amount_msat_sub(debit_net, debit, credit)) {
return tal_fmt(ctx, "unexpected fail, can't sub."
" %s - %s",
type_to_string(ctx,
struct amount_msat,
&debit),
type_to_string(ctx,
struct amount_msat,
&credit));
}
*credit_net = AMOUNT_MSAT(0);
}
return NULL;
}
static char *msat_find_diff(struct amount_msat balance,
struct amount_msat credits,
struct amount_msat debits,
struct amount_msat *credit_diff,
struct amount_msat *debit_diff)
{
struct amount_msat net_credit, net_debit;
char *err;
err = msat_net(tmpctx, credits, debits,
&net_credit, &net_debit);
if (err)
return err;
/* If we're not missing events, debits == 0 */
if (!amount_msat_zero(net_debit)) {
assert(amount_msat_zero(net_credit));
if (!amount_msat_add(credit_diff, net_debit, balance))
return "Overflow finding credit_diff";
*debit_diff = AMOUNT_MSAT(0);
} else {
assert(amount_msat_zero(net_debit));
if (amount_msat_greater(net_credit, balance)) {
if (!amount_msat_sub(debit_diff, net_credit,
balance))
return "Err net_credit - amt";
*credit_diff = AMOUNT_MSAT(0);
} else {
if (!amount_msat_sub(credit_diff, balance,
net_credit))
return "Err amt - net_credit";
*debit_diff = AMOUNT_MSAT(0);
}
}
return NULL;
}
static void log_journal_entry(struct account *acct,
const char *currency,
u64 timestamp,
struct amount_msat credit_diff,
struct amount_msat debit_diff)
{
struct channel_event *chan_ev;
/* No diffs to register, no journal needed */
if (amount_msat_zero(credit_diff)
&& amount_msat_zero(debit_diff))
return;
chan_ev = new_channel_event(tmpctx,
tal_fmt(tmpctx, "%s",
account_entry_tag_str(JOURNAL_ENTRY)),
credit_diff,
debit_diff,
AMOUNT_MSAT(0),
currency,
NULL, 0,
timestamp);
db_begin_transaction(db);
log_channel_event(db, acct, chan_ev);
db_commit_transaction(db);
}
static struct command_result *log_error(struct command *cmd,
const char *buf,
const jsmntok_t *error,
void *arg UNNEEDED)
{
plugin_log(cmd->plugin, LOG_BROKEN,
"error calling `listpeers`: %.*s",
json_tok_full_len(error),
json_tok_full(buf, error));
return notification_handled(cmd);
}
static struct command_result *
listpeers_multi_done(struct command *cmd,
const char *buf,
const jsmntok_t *result,
struct new_account_info **new_accts)
{
/* Let's register all these accounts! */
for (size_t i = 0; i < tal_count(new_accts); i++) {
struct new_account_info *info = new_accts[i];
struct acct_balance **balances, *bal;
struct amount_msat credit_diff, debit_diff;
char *err;
if (!new_missed_channel_account(cmd, buf, result,
info->acct,
info->currency,
info->timestamp)) {
plugin_log(cmd->plugin, LOG_BROKEN,
"Unable to find account %s in listpeers",
info->acct->name);
continue;
}
db_begin_transaction(db);
err = account_get_balance(tmpctx, db, info->acct->name,
false, &balances);
db_commit_transaction(db);
if (err)
plugin_err(cmd->plugin, err);
/* FIXME: multiple currencies */
if (tal_count(balances) > 0)
bal = balances[0];
else {
bal = tal(tmpctx, struct acct_balance);
bal->credit = AMOUNT_MSAT(0);
bal->debit= AMOUNT_MSAT(0);
}
err = msat_find_diff(info->curr_bal,
bal->credit,
bal->debit,
&credit_diff, &debit_diff);
if (err)
plugin_err(cmd->plugin, err);
log_journal_entry(info->acct,
info->currency,
info->timestamp - 1,
credit_diff, debit_diff);
}
return notification_handled(cmd);
}
static char *do_account_close_checks(const tal_t *ctx,
struct chain_event *e,
struct account *acct)
{
struct account *closed_acct;
db_begin_transaction(db);
/* If is an external acct event, might be close channel related */
if (!is_channel_account(acct) && !e->spending_txid)
closed_acct = find_close_account(ctx, db, &e->outpoint.txid);
else
closed_acct = acct;
if (closed_acct && closed_acct->closed_event_db_id) {
maybe_mark_account_onchain(db, closed_acct);
if (closed_acct->onchain_resolved_block > 0) {
char *err;
err = update_channel_onchain_fees(ctx, db, closed_acct);
if (err)
return err;
}
}
db_commit_transaction(db);
return NULL;
}
struct event_info {
struct chain_event *ev;
struct account *acct;
};
static struct command_result *
listpeers_done(struct command *cmd, const char *buf,
const jsmntok_t *result, struct event_info *info)
{
struct acct_balance **balances, *bal;
struct amount_msat credit_diff, debit_diff;
const char *err;
/* Make sure to clean up when we're done */
tal_steal(cmd, info);
if (new_missed_channel_account(cmd, buf, result,
info->acct,
info->ev->currency,
info->ev->timestamp)) {
db_begin_transaction(db);
err = account_get_balance(tmpctx, db, info->acct->name,
false, &balances);
db_commit_transaction(db);
if (err)
plugin_err(cmd->plugin, err);
/* FIXME: multiple currencies per account? */
if (tal_count(balances) > 0)
bal = balances[0];
else {
bal = tal(balances, struct acct_balance);
bal->credit = AMOUNT_MSAT(0);
bal->debit = AMOUNT_MSAT(0);
}
assert(tal_count(balances) == 1);
/* The expected current balance is zero, since
* we just got the channel close event */
err = msat_find_diff(AMOUNT_MSAT(0),
bal->credit,
bal->debit,
&credit_diff, &debit_diff);
if (err)
plugin_err(cmd->plugin, err);
log_journal_entry(info->acct,
info->ev->currency,
info->ev->timestamp - 1,
credit_diff, debit_diff);
} else
plugin_log(cmd->plugin, LOG_BROKEN,
"Unable to find account %s in listpeers",
info->acct->name);
/* Maybe mark acct as onchain resolved */
err = do_account_close_checks(cmd, info->ev, info->acct);
if (err)
plugin_err(cmd->plugin, err);
return notification_handled(cmd);
}
static struct command_result *json_balance_snapshot(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
const char *err;
size_t i;
u32 blockheight;
u64 timestamp;
struct new_account_info **new_accts;
const jsmntok_t *accounts_tok, *acct_tok,
*snap_tok = json_get_member(buf, params, "balance_snapshot");
if (snap_tok == NULL || snap_tok->type != JSMN_OBJECT)
plugin_err(cmd->plugin,
"`balance_snapshot` payload did not scan %s: %.*s",
"no 'balance_snapshot'", json_tok_full_len(params),
json_tok_full(buf, params));
err = json_scan(cmd, buf, snap_tok,
"{blockheight:%"
",timestamp:%}",
JSON_SCAN(json_to_number, &blockheight),
JSON_SCAN(json_to_u64, &timestamp));
if (err)
plugin_err(cmd->plugin,
"`balance_snapshot` payload did not scan %s: %.*s",
err, json_tok_full_len(params),
json_tok_full(buf, params));
accounts_tok = json_get_member(buf, snap_tok, "accounts");
if (accounts_tok == NULL || accounts_tok->type != JSMN_ARRAY)
plugin_err(cmd->plugin,
"`balance_snapshot` payload did not scan %s: %.*s",
"no 'balance_snapshot.accounts'",
json_tok_full_len(params),
json_tok_full(buf, params));
new_accts = tal_arr(cmd, struct new_account_info *, 0);
db_begin_transaction(db);
json_for_each_arr(i, acct_tok, accounts_tok) {
struct acct_balance **balances, *bal;
struct amount_msat snap_balance, credit_diff, debit_diff;
char *acct_name, *currency;
err = json_scan(cmd, buf, acct_tok,
"{account_id:%"
",balance_msat:%"
",coin_type:%}",
JSON_SCAN_TAL(tmpctx, json_strdup, &acct_name),
JSON_SCAN(json_to_msat, &snap_balance),
JSON_SCAN_TAL(tmpctx, json_strdup,
&currency));
if (err)
plugin_err(cmd->plugin,
"`balance_snapshot` payload did not"
" scan %s: %.*s",
err, json_tok_full_len(params),
json_tok_full(buf, params));
plugin_log(cmd->plugin, LOG_DBG, "account %s has balance %s",
acct_name,
type_to_string(tmpctx, struct amount_msat,
&snap_balance));
/* Find the account balances */
err = account_get_balance(cmd, db, acct_name,
/* Don't error if negative */
false,
&balances);
if (err)
plugin_err(cmd->plugin,
"Get account balance returned err"
" for account %s: %s",
acct_name, err);
/* FIXME: multiple currency balances */
if (tal_count(balances) > 0)
bal = balances[0];
else {
bal = tal(balances, struct acct_balance);
bal->credit = AMOUNT_MSAT(0);
bal->debit = AMOUNT_MSAT(0);
}
/* Figure out what the net diff is btw reported & actual */
err = msat_find_diff(snap_balance,
bal->credit,
bal->debit,
&credit_diff, &debit_diff);
if (err)
plugin_err(cmd->plugin,
"Unable to find_diff for amounts: %s",
err);
if (!amount_msat_zero(credit_diff)
|| !amount_msat_zero(debit_diff)) {
struct account *acct;
struct channel_event *ev;
u64 timestamp;
plugin_log(cmd->plugin, LOG_UNUSUAL,
"Snapshot balance does not equal ondisk"
" reported %s, off by (+%s/-%s) (account %s)"
" Logging journal entry.",
type_to_string(tmpctx, struct amount_msat,
&snap_balance),
type_to_string(tmpctx, struct amount_msat,
&debit_diff),
type_to_string(tmpctx, struct amount_msat,
&credit_diff),
acct_name);
timestamp = time_now().ts.tv_sec;
/* Log a channel "journal entry" to get
* the balances inline */
acct = find_account(cmd, db, acct_name);
if (!acct) {
struct new_account_info *info;
plugin_log(cmd->plugin, LOG_INFORM,
"account %s not found, adding"
" along with new balance",
acct_name);
/* FIXME: lookup peer id for channel? */
acct = new_account(cmd, acct_name, NULL);
account_add(db, acct);
/* If we're entering a channel account,
* from a balance entry, we need to
* go find the channel open info*/
if (is_channel_account(acct)) {
info = tal(new_accts, struct new_account_info);
info->acct = tal_steal(info, acct);
info->curr_bal = snap_balance;
info->timestamp = timestamp;
info->currency =
tal_strdup(info, currency);
tal_arr_expand(&new_accts, info);
continue;
}
}
ev = new_channel_event(cmd,
tal_fmt(tmpctx, "%s",
account_entry_tag_str(JOURNAL_ENTRY)),
credit_diff,
debit_diff,
AMOUNT_MSAT(0),
currency,
NULL, 0,
timestamp);
log_channel_event(db, acct, ev);
}
}
db_commit_transaction(db);
if (tal_count(new_accts) > 0) {
struct out_req *req;
req = jsonrpc_request_start(cmd->plugin, NULL,
"listpeers",
listpeers_multi_done,
log_error,
new_accts);
send_outreq(cmd->plugin, req);
return command_still_pending(cmd);
}
return notification_handled(cmd);
}
static struct command_result *
parse_and_log_chain_move(struct command *cmd,
const char *buf,
const jsmntok_t *params,
const char *acct_name STEALS,
const struct amount_msat credit,
const struct amount_msat debit,
const char *coin_type STEALS,
const u64 timestamp,
const enum mvt_tag *tags)
{
struct chain_event *e = tal(cmd, struct chain_event);
struct sha256 *payment_hash = tal(cmd, struct sha256);
struct bitcoin_txid *spending_txid = tal(cmd, struct bitcoin_txid);
struct account *acct;
u32 closed_count;
const char *err;
/* Fields we expect on *every* chain movement */
err = json_scan(tmpctx, buf, params,
"{coin_movement:"
"{utxo_txid:%"
",vout:%"
",output_msat:%"
",blockheight:%"
"}}",
JSON_SCAN(json_to_txid, &e->outpoint.txid),
JSON_SCAN(json_to_number, &e->outpoint.n),
JSON_SCAN(json_to_msat, &e->output_value),
JSON_SCAN(json_to_number, &e->blockheight));
if (err)
plugin_err(cmd->plugin,
"`coin_movement` payload did"
" not scan %s: %.*s",
err, json_tok_full_len(params),
json_tok_full(buf, params));
/* Now try to get out the optional parts */
err = json_scan(tmpctx, buf, params,
"{coin_movement:"
"{txid:%"
"}}",
JSON_SCAN(json_to_txid, spending_txid));
if (err) {
spending_txid = tal_free(spending_txid);
err = tal_free(err);
}
e->spending_txid = tal_steal(e, spending_txid);
/* Now try to get out the optional parts */
err = json_scan(tmpctx, buf, params,
"{coin_movement:"
"{payment_hash:%"
"}}",
JSON_SCAN(json_to_sha256, payment_hash));
if (err) {
payment_hash = tal_free(payment_hash);
err = tal_free(err);
}
err = json_scan(tmpctx, buf, params,
"{coin_movement:"
"{originating_account:%}}",
JSON_SCAN_TAL(e, json_strdup, &e->origin_acct));
if (err) {
e->origin_acct = NULL;
err = tal_free(err);
}
err = json_scan(tmpctx, buf, params,
"{coin_movement:"
"{output_count:%}}",
JSON_SCAN(json_to_number, &closed_count));
if (err) {
closed_count = 0;
err = tal_free(err);
}
e->payment_id = tal_steal(e, payment_hash);
e->credit = credit;
e->debit = debit;
e->currency = tal_steal(e, coin_type);
e->timestamp = timestamp;
e->tag = mvt_tag_str(tags[0]);
db_begin_transaction(db);
acct = find_account(cmd, db, acct_name);
if (!acct) {
/* FIXME: lookup the peer id for this channel! */
acct = new_account(cmd, acct_name, NULL);
account_add(db, acct);
}
if (!log_chain_event(db, acct, e)) {
db_commit_transaction(db);
/* This is not a new event, do nothing */
return notification_handled(cmd);
}
/* This event *might* have implications for account;
* update as necessary */
maybe_update_account(db, acct, e, tags, closed_count);
/* Can we calculate any onchain fees now? */
err = maybe_update_onchain_fees(cmd, db,
e->spending_txid ?
e->spending_txid :
&e->outpoint.txid);
db_commit_transaction(db);
if (err)
plugin_err(cmd->plugin,
"Unable to update onchain fees %s",
err);
/* If this is an account close event, it's possible
* that we *never* got the open event. (This happens
* if you add the plugin *after* you've closed the channel) */
if (!acct->open_event_db_id
&& acct->closed_event_db_id
&& *acct->closed_event_db_id == e->db_id) {
/* Find the channel open info for this peer */
struct out_req *req;
struct event_info *info;
plugin_log(cmd->plugin, LOG_DBG,
"`channel_close` but no open for channel %s."
" Calling `listpeers` to fetch missing info",
acct->name);
info = tal(NULL, struct event_info);
info->ev = tal_steal(info, e);
info->acct = tal_steal(info, acct);
req = jsonrpc_request_start(cmd->plugin, NULL,
"listpeers",
listpeers_done,
log_error,
info);
/* FIXME: use the peer_id to reduce work here */
send_outreq(cmd->plugin, req);
return command_still_pending(cmd);
}
/* Maybe mark acct as onchain resolved */
err = do_account_close_checks(cmd, e, acct);
if (err)
plugin_err(cmd->plugin, err);
return notification_handled(cmd);;
}
static struct command_result *
parse_and_log_channel_move(struct command *cmd,
const char *buf,
const jsmntok_t *params,
const char *acct_name STEALS,
const struct amount_msat credit,
const struct amount_msat debit,
const char *coin_type STEALS,
const u64 timestamp,
const enum mvt_tag *tags)
{
struct channel_event *e = tal(cmd, struct channel_event);
struct account *acct;
const char *err;
e->payment_id = tal(e, struct sha256);
err = json_scan(tmpctx, buf, params,
"{coin_movement:{payment_hash:%}}",
JSON_SCAN(json_to_sha256, e->payment_id));
if (err) {
e->payment_id = tal_free(e->payment_id);
err = tal_free(err);
}
err = json_scan(tmpctx, buf, params,
"{coin_movement:{part_id:%}}",
JSON_SCAN(json_to_number, &e->part_id));
if (err) {
e->part_id = 0;
err = tal_free(err);
}
err = json_scan(tmpctx, buf, params,
"{coin_movement:{fees_msat:%}}",
JSON_SCAN(json_to_msat, &e->fees));
if (err) {
e->fees = AMOUNT_MSAT(0);
err = tal_free(err);
}
e->credit = credit;
e->debit = debit;
e->currency = tal_steal(e, coin_type);
e->timestamp = timestamp;
e->tag = mvt_tag_str(tags[0]);
/* Go find the account for this event */
db_begin_transaction(db);
acct = find_account(cmd, db, acct_name);
if (!acct)
plugin_err(cmd->plugin,
"Received channel event,"
" but no account exists %s",
acct_name);
log_channel_event(db, acct, e);
db_commit_transaction(db);
return notification_handled(cmd);
}
static char *parse_tags(const tal_t *ctx,
const char *buf,
const jsmntok_t *tok,
enum mvt_tag **tags)
{
size_t i;
const jsmntok_t *tag_tok,
*tags_tok = json_get_member(buf, tok, "tags");
if (tags_tok == NULL || tags_tok->type != JSMN_ARRAY)
return "Invalid/missing 'tags' field";
*tags = tal_arr(ctx, enum mvt_tag, tags_tok->size);
json_for_each_arr(i, tag_tok, tags_tok) {
if (!json_to_coin_mvt_tag(buf, tag_tok, &(*tags)[i]))
return "Unable to parse 'tags'";
}
return NULL;
}
static struct command_result * json_coin_moved(struct command *cmd,
const char *buf,
const jsmntok_t *params)
{
const char *err, *mvt_type, *acct_name, *coin_type;
u32 version;
u64 timestamp;
struct amount_msat credit, debit;
enum mvt_tag *tags;
err = json_scan(tmpctx, buf, params,
"{coin_movement:"
"{version:%"
",type:%"
",account_id:%"
",credit_msat:%"
",debit_msat:%"
",coin_type:%"
",timestamp:%"
"}}",
JSON_SCAN(json_to_number, &version),
JSON_SCAN_TAL(tmpctx, json_strdup, &mvt_type),
JSON_SCAN_TAL(tmpctx, json_strdup, &acct_name),
JSON_SCAN(json_to_msat, &credit),
JSON_SCAN(json_to_msat, &debit),
JSON_SCAN_TAL(tmpctx, json_strdup, &coin_type),
JSON_SCAN(json_to_u64, &timestamp));
if (err)
plugin_err(cmd->plugin,
"`coin_movement` payload did not scan %s: %.*s",
err, json_tok_full_len(params),
json_tok_full(buf, params));
err = parse_tags(cmd, buf,
json_get_member(buf, params, "coin_movement"),
&tags);
if (err)
plugin_err(cmd->plugin,
"`coin_movement` payload did not scan %s: %.*s",
err, json_tok_full_len(params),
json_tok_full(buf, params));
/* We expect version 2 of coin movements */
assert(version == 2);
plugin_log(cmd->plugin, LOG_DBG, "coin_move %d %s -%s %s %"PRIu64,
version,
type_to_string(tmpctx, struct amount_msat, &credit),
type_to_string(tmpctx, struct amount_msat, &debit),
mvt_type, timestamp);
if (streq(mvt_type, CHAIN_MOVE))
return parse_and_log_chain_move(cmd, buf, params,
acct_name, credit, debit,
coin_type, timestamp, tags);
assert(streq(mvt_type, CHANNEL_MOVE));
return parse_and_log_channel_move(cmd, buf, params,
acct_name, credit, debit,
coin_type, timestamp, tags);
}
const struct plugin_notification notifs[] = {
{
"coin_movement",
json_coin_moved,
},
{
"balance_snapshot",
json_balance_snapshot,
}
};
static const struct plugin_command commands[] = {
{
"listbalances",
"bookkeeping",
"List current account balances",
"List of current accounts and their balances",
json_list_balances
},
{
"listaccountevents",
"bookkeeping",
"List all events for an {account}",
"List all events for an {account} (or all accounts, if"
" no account specified) in {format}. Sorted by timestamp",
json_list_account_events
},
{
"inspect",
"utilities",
"See the current on-chain graph of an {account}",
"Prints out the on-chain footprint of a given {account}.",
json_inspect
},
{
"listincome",
"bookkeeping",
"List all income impacting events",
"List all events for this node that impacted income",
json_list_income
},
};
static const char *init(struct plugin *p, const char *b, const jsmntok_t *t)
{
// FIXME: pass in database DSN as an option??
db = notleak(db_setup(p, p, db_dsn));
return NULL;
}
int main(int argc, char *argv[])
{
setup_locale();
plugin_main(argv, init, PLUGIN_STATIC, true, NULL,
commands, ARRAY_SIZE(commands),
notifs, ARRAY_SIZE(notifs),
NULL, 0,
NULL, 0,
NULL);
return 0;
}
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