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571 lines
18 KiB
571 lines
18 KiB
#include "invoice.h"
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#include "jsonrpc.h"
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#include "lightningd.h"
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#include <bitcoin/address.h>
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#include <bitcoin/base58.h>
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#include <bitcoin/script.h>
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#include <ccan/str/hex/hex.h>
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#include <ccan/structeq/structeq.h>
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#include <ccan/tal/str/str.h>
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#include <common/bech32.h>
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#include <common/bolt11.h>
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#include <common/utils.h>
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#include <errno.h>
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#include <hsmd/gen_hsm_client_wire.h>
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#include <inttypes.h>
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#include <lightningd/hsm_control.h>
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#include <lightningd/log.h>
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#include <lightningd/options.h>
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#include <sodium/randombytes.h>
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#include <wire/wire_sync.h>
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static const char *invoice_status_str(const struct invoice *inv)
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{
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if (inv->state == PAID)
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return "paid";
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if (inv->state == EXPIRED)
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return "expired";
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return "unpaid";
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}
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static void json_add_invoice(struct json_result *response,
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const struct invoice *inv,
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bool modern)
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{
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json_object_start(response, NULL);
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json_add_string(response, "label", inv->label);
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json_add_hex(response, "payment_hash", &inv->rhash, sizeof(inv->rhash));
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if (inv->msatoshi)
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json_add_u64(response, "msatoshi", *inv->msatoshi);
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if (modern)
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json_add_string(response, "status", invoice_status_str(inv));
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else if (deprecated_apis && !modern)
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json_add_bool(response, "complete", inv->state == PAID);
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if (inv->state == PAID) {
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json_add_u64(response, "pay_index", inv->pay_index);
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json_add_u64(response, "msatoshi_received",
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inv->msatoshi_received);
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if (deprecated_apis)
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json_add_u64(response, "paid_timestamp",
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inv->paid_timestamp);
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json_add_u64(response, "paid_at", inv->paid_timestamp);
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}
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if (deprecated_apis)
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json_add_u64(response, "expiry_time", inv->expiry_time);
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json_add_u64(response, "expires_at", inv->expiry_time);
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json_object_end(response);
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}
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static void tell_waiter(struct command *cmd, const struct invoice *inv)
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{
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struct json_result *response = new_json_result(cmd);
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json_add_invoice(response, inv, true);
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if (inv->state == PAID)
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command_success(cmd, response);
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else
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command_fail_detailed(cmd, -2, response,
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"invoice expired during wait");
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}
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static void tell_waiter_deleted(struct command *cmd)
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{
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command_fail(cmd, "Invoice deleted during wait");
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}
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static void wait_on_invoice(const struct invoice *invoice, void *cmd)
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{
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if (invoice)
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tell_waiter((struct command *) cmd, invoice);
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else
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tell_waiter_deleted((struct command *) cmd);
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}
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static bool hsm_sign_b11(const u5 *u5bytes,
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const u8 *hrpu8,
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secp256k1_ecdsa_recoverable_signature *rsig,
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struct lightningd *ld)
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{
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u8 *msg = towire_hsm_sign_invoice(ld, u5bytes, hrpu8);
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if (!wire_sync_write(ld->hsm_fd, take(msg)))
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fatal("Could not write to HSM: %s", strerror(errno));
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msg = hsm_sync_read(ld, ld);
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if (!fromwire_hsm_sign_invoice_reply(msg, NULL, rsig))
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fatal("HSM gave bad sign_invoice_reply %s",
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tal_hex(msg, msg));
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tal_free(msg);
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return true;
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}
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static void json_invoice(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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const struct invoice *invoice;
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jsmntok_t *msatoshi, *label, *desc, *exp;
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u64 *msatoshi_val;
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const char *label_val;
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struct json_result *response = new_json_result(cmd);
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struct wallet *wallet = cmd->ld->wallet;
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struct bolt11 *b11;
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char *b11enc;
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u64 expiry = 3600;
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if (!json_get_params(cmd, buffer, params,
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"msatoshi", &msatoshi,
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"label", &label,
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"description", &desc,
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"?expiry", &exp,
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NULL)) {
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return;
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}
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/* Get arguments. */
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/* msatoshi */
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if (json_tok_streq(buffer, msatoshi, "any"))
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msatoshi_val = NULL;
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else {
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msatoshi_val = tal(cmd, u64);
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if (!json_tok_u64(buffer, msatoshi, msatoshi_val)
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|| *msatoshi_val == 0) {
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command_fail(cmd,
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"'%.*s' is not a valid positive number",
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msatoshi->end - msatoshi->start,
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buffer + msatoshi->start);
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return;
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}
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}
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/* label */
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label_val = tal_strndup(cmd, buffer + label->start,
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label->end - label->start);
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if (wallet_invoice_find_by_label(wallet, label_val)) {
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command_fail(cmd, "Duplicate label '%s'", label_val);
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return;
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}
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if (strlen(label_val) > INVOICE_MAX_LABEL_LEN) {
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command_fail(cmd, "Label '%s' over %u bytes", label_val,
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INVOICE_MAX_LABEL_LEN);
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return;
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}
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if (exp && !json_tok_u64(buffer, exp, &expiry)) {
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command_fail(cmd, "Expiry '%.*s' invalid seconds",
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exp->end - exp->start,
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buffer + exp->start);
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return;
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}
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invoice = wallet_invoice_create(cmd->ld->wallet,
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take(msatoshi_val),
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take(label_val),
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expiry);
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if (!invoice) {
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command_fail(cmd, "Failed to create invoice on database");
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return;
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}
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/* Construct bolt11 string. */
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b11 = new_bolt11(cmd, invoice->msatoshi);
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b11->chain = get_chainparams(cmd->ld);
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b11->timestamp = time_now().ts.tv_sec;
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b11->payment_hash = invoice->rhash;
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b11->receiver_id = cmd->ld->id;
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b11->min_final_cltv_expiry = cmd->ld->config.cltv_final;
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b11->expiry = expiry;
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if (desc->end - desc->start >= BOLT11_FIELD_BYTE_LIMIT) {
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b11->description_hash = tal(b11, struct sha256);
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sha256(b11->description_hash, buffer + desc->start,
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desc->end - desc->start);
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} else
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b11->description = tal_strndup(b11, buffer + desc->start,
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desc->end - desc->start);
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/* FIXME: add private routes if necessary! */
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b11enc = bolt11_encode(cmd, b11, false, hsm_sign_b11, cmd->ld);
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json_object_start(response, NULL);
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json_add_hex(response, "payment_hash",
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&invoice->rhash, sizeof(invoice->rhash));
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if (deprecated_apis)
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json_add_u64(response, "expiry_time", invoice->expiry_time);
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json_add_u64(response, "expires_at", invoice->expiry_time);
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json_add_string(response, "bolt11", b11enc);
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if (b11->description_hash)
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json_add_string(response, "description", b11->description);
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json_object_end(response);
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command_success(cmd, response);
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}
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static const struct json_command invoice_command = {
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"invoice",
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json_invoice,
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"Create an invoice for {msatoshi} with {label} and {description} with optional {expiry} seconds (default 1 hour)"
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};
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AUTODATA(json_command, &invoice_command);
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static void json_add_invoices(struct json_result *response,
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struct wallet *wallet,
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const char *buffer, const jsmntok_t *label,
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bool modern)
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{
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const struct invoice *i;
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char *lbl = NULL;
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if (label)
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lbl = tal_strndup(response, &buffer[label->start], label->end - label->start);
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i = NULL;
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while ((i = wallet_invoice_iterate(wallet, i)) != NULL) {
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if (lbl && !streq(i->label, lbl))
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continue;
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json_add_invoice(response, i, modern);
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}
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}
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static void json_listinvoice_internal(struct command *cmd,
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const char *buffer,
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const jsmntok_t *params,
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bool modern)
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{
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jsmntok_t *label = NULL;
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struct json_result *response = new_json_result(cmd);
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struct wallet *wallet = cmd->ld->wallet;
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if (!json_get_params(cmd, buffer, params,
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"?label", &label,
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NULL)) {
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return;
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}
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if (modern) {
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json_object_start(response, NULL);
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json_array_start(response, "invoices");
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} else
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json_array_start(response, NULL);
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json_add_invoices(response, wallet, buffer, label, modern);
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json_array_end(response);
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if (modern)
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json_object_end(response);
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command_success(cmd, response);
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}
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/* FIXME: Deprecated! */
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static void json_listinvoice(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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return json_listinvoice_internal(cmd, buffer, params, false);
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}
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static const struct json_command listinvoice_command = {
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"listinvoice",
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json_listinvoice,
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"(DEPRECATED) Show invoice {label} (or all, if no {label}))",
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.deprecated = true
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};
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AUTODATA(json_command, &listinvoice_command);
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static void json_listinvoices(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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return json_listinvoice_internal(cmd, buffer, params, true);
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}
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static const struct json_command listinvoices_command = {
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"listinvoices",
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json_listinvoices,
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"Show invoice {label} (or all, if no {label})"
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};
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AUTODATA(json_command, &listinvoices_command);
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static void json_delinvoice(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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const struct invoice *i;
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jsmntok_t *labeltok, *statustok;
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struct json_result *response = new_json_result(cmd);
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const char *label, *status, *actual_status;
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struct wallet *wallet = cmd->ld->wallet;
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if (!json_get_params(cmd, buffer, params,
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"label", &labeltok,
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"status", &statustok,
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NULL)) {
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return;
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}
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label = tal_strndup(cmd, buffer + labeltok->start,
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labeltok->end - labeltok->start);
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i = wallet_invoice_find_by_label(wallet, label);
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if (!i) {
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command_fail(cmd, "Unknown invoice");
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return;
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}
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status = tal_strndup(cmd, buffer + statustok->start,
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statustok->end - statustok->start);
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/* This is time-sensitive, so only call once; otherwise error msg
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* might not make sense if it changed! */
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actual_status = invoice_status_str(i);
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if (!streq(actual_status, status)) {
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command_fail(cmd, "Invoice status is %s not %s",
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actual_status, status);
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return;
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}
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/* Get invoice details before attempting to delete, as
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* otherwise the invoice will be freed. */
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json_add_invoice(response, i, true);
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if (!wallet_invoice_delete(wallet, i)) {
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log_broken(cmd->ld->log,
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"Error attempting to remove invoice %"PRIu64,
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i->id);
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command_fail(cmd, "Database error");
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return;
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}
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command_success(cmd, response);
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}
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static const struct json_command delinvoice_command = {
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"delinvoice",
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json_delinvoice,
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"Delete unpaid invoice {label} with {status}",
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};
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AUTODATA(json_command, &delinvoice_command);
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static void json_waitanyinvoice(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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jsmntok_t *pay_indextok;
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u64 pay_index;
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struct wallet *wallet = cmd->ld->wallet;
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if (!json_get_params(cmd, buffer, params,
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"?lastpay_index", &pay_indextok,
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NULL)) {
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return;
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}
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if (!pay_indextok) {
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pay_index = 0;
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} else {
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if (!json_tok_u64(buffer, pay_indextok, &pay_index)) {
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command_fail(cmd, "'%.*s' is not a valid number",
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pay_indextok->end - pay_indextok->start,
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buffer + pay_indextok->start);
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return;
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}
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}
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/* Set command as pending. We do not know if
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* wallet_invoice_waitany will return immediately
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* or not, so indicating pending is safest. */
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command_still_pending(cmd);
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/* Find next paid invoice. */
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wallet_invoice_waitany(cmd, wallet, pay_index,
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&wait_on_invoice, (void*) cmd);
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}
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static const struct json_command waitanyinvoice_command = {
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"waitanyinvoice",
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json_waitanyinvoice,
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"Wait for the next invoice to be paid, after {lastpay_index} (if supplied)"
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};
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AUTODATA(json_command, &waitanyinvoice_command);
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/* Wait for an incoming payment matching the `label` in the JSON
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* command. This will either return immediately if the payment has
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* already been received or it may add the `cmd` to the list of
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* waiters, if the payment is still pending.
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*/
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static void json_waitinvoice(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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const struct invoice *i;
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struct wallet *wallet = cmd->ld->wallet;
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jsmntok_t *labeltok;
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const char *label = NULL;
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if (!json_get_params(cmd, buffer, params, "label", &labeltok, NULL)) {
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return;
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}
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/* Search in paid invoices, if found return immediately */
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label = tal_strndup(cmd, buffer + labeltok->start, labeltok->end - labeltok->start);
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i = wallet_invoice_find_by_label(wallet, label);
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if (!i) {
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command_fail(cmd, "Label not found");
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return;
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} else if (i->state == PAID || i->state == EXPIRED) {
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tell_waiter(cmd, i);
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return;
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} else {
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/* There is an unpaid one matching, let's wait... */
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command_still_pending(cmd);
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wallet_invoice_waitone(cmd, wallet, i,
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&wait_on_invoice, (void *) cmd);
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}
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}
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static const struct json_command waitinvoice_command = {
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"waitinvoice",
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json_waitinvoice,
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"Wait for an incoming payment matching the invoice with {label}, or if the invoice expires"
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};
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AUTODATA(json_command, &waitinvoice_command);
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static void json_decodepay(struct command *cmd,
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const char *buffer, const jsmntok_t *params)
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{
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jsmntok_t *bolt11tok, *desctok;
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struct bolt11 *b11;
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struct json_result *response;
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char *str, *desc, *fail;
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if (!json_get_params(cmd, buffer, params,
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"bolt11", &bolt11tok,
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"?description", &desctok,
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NULL)) {
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return;
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}
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str = tal_strndup(cmd, buffer + bolt11tok->start,
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bolt11tok->end - bolt11tok->start);
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if (desctok)
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desc = tal_strndup(cmd, buffer + desctok->start,
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desctok->end - desctok->start);
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else
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desc = NULL;
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b11 = bolt11_decode(cmd, str, desc, &fail);
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if (!b11) {
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command_fail(cmd, "Invalid bolt11: %s", fail);
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return;
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}
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response = new_json_result(cmd);
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json_object_start(response, NULL);
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json_add_string(response, "currency", b11->chain->bip173_name);
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if (deprecated_apis)
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json_add_u64(response, "timestamp", b11->timestamp);
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json_add_u64(response, "created_at", b11->timestamp);
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json_add_u64(response, "expiry", b11->expiry);
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json_add_pubkey(response, "payee", &b11->receiver_id);
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if (b11->msatoshi)
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json_add_u64(response, "msatoshi", *b11->msatoshi);
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if (b11->description)
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json_add_string(response, "description", b11->description);
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if (b11->description_hash)
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json_add_hex(response, "description_hash",
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b11->description_hash,
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sizeof(*b11->description_hash));
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json_add_num(response, "min_final_cltv_expiry",
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b11->min_final_cltv_expiry);
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if (tal_len(b11->fallback)) {
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struct bitcoin_address pkh;
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struct ripemd160 sh;
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struct sha256 wsh;
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json_object_start(response, "fallback");
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if (is_p2pkh(b11->fallback, &pkh)) {
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json_add_string(response, "type", "P2PKH");
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json_add_string(response, "addr",
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bitcoin_to_base58(cmd,
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b11->chain->testnet,
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&pkh));
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} else if (is_p2sh(b11->fallback, &sh)) {
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json_add_string(response, "type", "P2SH");
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json_add_string(response, "addr",
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p2sh_to_base58(cmd,
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b11->chain->testnet,
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&sh));
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} else if (is_p2wpkh(b11->fallback, &pkh)) {
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char out[73 + strlen(b11->chain->bip173_name)];
|
|
json_add_string(response, "type", "P2WPKH");
|
|
if (segwit_addr_encode(out, b11->chain->bip173_name, 0,
|
|
(const u8 *)&pkh, sizeof(pkh)))
|
|
json_add_string(response, "addr", out);
|
|
} else if (is_p2wsh(b11->fallback, &wsh)) {
|
|
char out[73 + strlen(b11->chain->bip173_name)];
|
|
json_add_string(response, "type", "P2WSH");
|
|
if (segwit_addr_encode(out, b11->chain->bip173_name, 0,
|
|
(const u8 *)&wsh, sizeof(wsh)))
|
|
json_add_string(response, "addr", out);
|
|
}
|
|
json_add_hex(response, "hex",
|
|
b11->fallback, tal_len(b11->fallback));
|
|
json_object_end(response);
|
|
}
|
|
|
|
if (tal_count(b11->routes)) {
|
|
size_t i, n;
|
|
|
|
json_array_start(response, "routes");
|
|
for (i = 0; i < tal_count(b11->routes); i++) {
|
|
json_array_start(response, NULL);
|
|
for (n = 0; n < tal_count(b11->routes[i]); n++) {
|
|
json_object_start(response, NULL);
|
|
json_add_pubkey(response, "pubkey",
|
|
&b11->routes[i][n].pubkey);
|
|
json_add_short_channel_id(response,
|
|
"short_channel_id",
|
|
&b11->routes[i][n]
|
|
.short_channel_id);
|
|
json_add_u64(response, "fee_base_msat",
|
|
b11->routes[i][n].fee_base_msat);
|
|
json_add_u64(response, "fee_proportional_millionths",
|
|
b11->routes[i][n].fee_proportional_millionths);
|
|
json_add_num(response, "cltv_expiry_delta",
|
|
b11->routes[i][n]
|
|
.cltv_expiry_delta);
|
|
json_object_end(response);
|
|
}
|
|
json_array_end(response);
|
|
}
|
|
json_array_end(response);
|
|
}
|
|
|
|
if (!list_empty(&b11->extra_fields)) {
|
|
struct bolt11_field *extra;
|
|
|
|
json_array_start(response, "extra");
|
|
list_for_each(&b11->extra_fields, extra, list) {
|
|
char *data = tal_arr(cmd, char, tal_len(extra->data)+1);
|
|
size_t i;
|
|
|
|
for (i = 0; i < tal_len(extra->data); i++)
|
|
data[i] = bech32_charset[extra->data[i]];
|
|
data[i] = '\0';
|
|
json_object_start(response, NULL);
|
|
json_add_string(response, "tag",
|
|
tal_fmt(data, "%c", extra->tag));
|
|
json_add_string(response, "data", data);
|
|
tal_free(data);
|
|
json_object_end(response);
|
|
}
|
|
json_array_end(response);
|
|
}
|
|
|
|
json_add_hex(response, "payment_hash",
|
|
&b11->payment_hash, sizeof(b11->payment_hash));
|
|
|
|
json_add_string(response, "signature",
|
|
type_to_string(cmd, secp256k1_ecdsa_signature,
|
|
&b11->sig));
|
|
json_object_end(response);
|
|
command_success(cmd, response);
|
|
}
|
|
|
|
static const struct json_command decodepay_command = {
|
|
"decodepay",
|
|
json_decodepay,
|
|
"Decode {bolt11}, using {description} if necessary"
|
|
};
|
|
AUTODATA(json_command, &decodepay_command);
|
|
|