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903 lines
26 KiB
903 lines
26 KiB
#include "pay.h"
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#include <bitcoin/preimage.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/bolt11.h>
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#include <gossipd/gen_gossip_wire.h>
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#include <lightningd/chaintopology.h>
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#include <lightningd/jsonrpc.h>
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#include <lightningd/jsonrpc_errors.h>
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#include <lightningd/lightningd.h>
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#include <lightningd/log.h>
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#include <lightningd/options.h>
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#include <lightningd/peer_control.h>
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#include <lightningd/peer_htlcs.h>
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#include <lightningd/subd.h>
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#include <sodium/randombytes.h>
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/*-----------------------------------------------------------------------------
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Internal sendpay interface
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-----------------------------------------------------------------------------*/
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/* sendpay command */
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struct sendpay_command {
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struct list_node list;
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struct sha256 payment_hash;
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void (*cb)(const struct sendpay_result *, void*);
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void *cbarg;
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};
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static void destroy_sendpay_command(struct sendpay_command *pc)
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{
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list_del(&pc->list);
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}
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/* Owned by cxt; if cxt is deleted, then cb will
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* no longer be called. */
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static struct sendpay_command *
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new_sendpay_command(const tal_t *cxt,
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const struct sha256 *payment_hash,
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struct lightningd *ld,
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void (*cb)(const struct sendpay_result *, void*),
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void *cbarg)
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{
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struct sendpay_command *pc = tal(cxt, struct sendpay_command);
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pc->payment_hash = *payment_hash;
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pc->cb = cb;
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pc->cbarg = cbarg;
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list_add(&ld->sendpay_commands, &pc->list);
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tal_add_destructor(pc, destroy_sendpay_command);
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return pc;
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}
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/* Caller responsible for freeing ctx. */
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static void sendpay_resolve(const tal_t *ctx,
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struct lightningd *ld,
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const struct sha256 *payment_hash,
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const struct sendpay_result *result)
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{
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struct sendpay_command *pc;
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struct sendpay_command *next;
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list_for_each_safe(&ld->sendpay_commands, pc, next, list) {
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if (!structeq(payment_hash, &pc->payment_hash))
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continue;
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/* Delete later (in our own caller) if callback did
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* not delete. */
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tal_steal(ctx, pc);
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pc->cb(result, pc->cbarg);
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}
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}
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static void sendpay_success(struct lightningd *ld,
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const struct sha256 *payment_hash,
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const struct preimage *payment_preimage)
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{
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const tal_t *tmpctx = tal_tmpctx(ld);
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struct sendpay_result *result;
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result = tal(tmpctx, struct sendpay_result);
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result->succeeded = true;
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result->preimage = *payment_preimage;
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sendpay_resolve(tmpctx, ld, payment_hash, result);
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tal_free(tmpctx);
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}
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static void sendpay_route_failure(struct lightningd *ld,
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const struct sha256 *payment_hash,
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bool retry_plausible,
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struct routing_failure *fail,
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const u8 *onionreply,
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const char *details)
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{
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const tal_t *tmpctx = tal_tmpctx(ld);
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struct sendpay_result *result;
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result = tal(tmpctx, struct sendpay_result);
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result->succeeded = false;
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result->errorcode =
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(!fail) ? PAY_UNPARSEABLE_ONION :
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(!retry_plausible) ? PAY_DESTINATION_PERM_FAIL :
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/*otherwise*/ PAY_TRY_OTHER_ROUTE ;
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result->onionreply = onionreply;
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result->routing_failure = fail;
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result->details = details;
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sendpay_resolve(tmpctx, ld, payment_hash, result);
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tal_free(tmpctx);
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}
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/* Immediately fail during send_payment call. */
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static void sendpay_fail_now(void (*cb)(const struct sendpay_result *, void*),
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void *cbarg,
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int errorcode,
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char const *details)
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{
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const tal_t *tmpctx = tal_tmpctx(NULL);
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struct sendpay_result *result;
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result = tal(tmpctx, struct sendpay_result);
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result->succeeded = false;
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result->errorcode = errorcode;
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result->details = details;
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cb(result, cbarg);
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tal_free(tmpctx);
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}
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/* Immediately fail during send_payment call. */
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static void
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sendpay_succeed_now(void (*cb)(const struct sendpay_result*, void*),
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void *cbarg,
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const struct preimage *payment_preimage)
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{
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const tal_t *tmpctx = tal_tmpctx(NULL);
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struct sendpay_result *result;
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result = tal(tmpctx, struct sendpay_result);
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result->succeeded = true;
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result->preimage = *payment_preimage;
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cb(result, cbarg);
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tal_free(tmpctx);
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}
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void payment_succeeded(struct lightningd *ld, struct htlc_out *hout,
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const struct preimage *rval)
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{
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wallet_payment_set_status(ld->wallet, &hout->payment_hash,
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PAYMENT_COMPLETE, rval);
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sendpay_success(ld, &hout->payment_hash, rval);
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}
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/* Return NULL if the wrapped onion error message has no
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* channel_update field, or return the embedded
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* channel_update message otherwise. */
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static u8 *channel_update_from_onion_error(const tal_t *ctx,
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const u8 *onion_message)
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{
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u8 *channel_update = NULL;
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u64 unused64;
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u32 unused32;
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/* Identify failcodes that have some channel_update.
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*
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* TODO > BOLT 1.0: Add new failcodes when updating to a
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* new BOLT version. */
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if (!fromwire_temporary_channel_failure(ctx,
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onion_message,
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&channel_update) &&
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!fromwire_amount_below_minimum(ctx,
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onion_message, &unused64,
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&channel_update) &&
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!fromwire_fee_insufficient(ctx,
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onion_message, &unused64,
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&channel_update) &&
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!fromwire_incorrect_cltv_expiry(ctx,
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onion_message, &unused32,
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&channel_update) &&
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!fromwire_expiry_too_soon(ctx,
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onion_message,
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&channel_update))
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/* No channel update. */
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channel_update = NULL;
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return channel_update;
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}
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/* Return a struct routing_failure for an immediate failure
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* (returned directly from send_htlc_out). The returned
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* failure is allocated from the given context. */
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static struct routing_failure*
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immediate_routing_failure(const tal_t *ctx,
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const struct lightningd *ld,
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enum onion_type failcode,
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const struct short_channel_id *channel0)
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{
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struct routing_failure *routing_failure;
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assert(failcode);
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routing_failure = tal(ctx, struct routing_failure);
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routing_failure->erring_index = 0;
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routing_failure->failcode = failcode;
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routing_failure->erring_node = ld->id;
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routing_failure->erring_channel = *channel0;
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routing_failure->channel_update = NULL;
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return routing_failure;
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}
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/* Return a struct routing_failure for a local failure allocated
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* from the given context. */
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static struct routing_failure*
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local_routing_failure(const tal_t *ctx,
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const struct lightningd *ld,
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const struct htlc_out *hout,
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const struct wallet_payment *payment)
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{
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struct routing_failure *routing_failure;
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assert(hout->failcode);
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routing_failure = tal(ctx, struct routing_failure);
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routing_failure->erring_index = 0;
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routing_failure->failcode = hout->failcode;
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routing_failure->erring_node = ld->id;
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routing_failure->erring_channel = payment->route_channels[0];
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routing_failure->channel_update = NULL;
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return routing_failure;
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}
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/* Return false if permanent failure at the destination, true if
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* retrying is plausible. Fill *routing_failure with NULL if
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* we cannot report the remote failure, or with the routing
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* failure to report (allocated from ctx) otherwise. */
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static struct routing_failure*
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remote_routing_failure(const tal_t *ctx,
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bool *p_retry_plausible,
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bool *p_report_to_gossipd,
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const struct wallet_payment *payment,
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const struct onionreply *failure)
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{
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enum onion_type failcode = fromwire_peektype(failure->msg);
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u8 *channel_update;
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struct routing_failure *routing_failure;
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const struct pubkey *route_nodes;
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const struct pubkey *erring_node;
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const struct short_channel_id *route_channels;
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const struct short_channel_id *erring_channel;
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static const struct short_channel_id dummy_channel = { 0 };
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int origin_index;
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bool retry_plausible;
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bool report_to_gossipd;
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routing_failure = tal(ctx, struct routing_failure);
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route_nodes = payment->route_nodes;
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route_channels = payment->route_channels;
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origin_index = failure->origin_index;
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channel_update
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= channel_update_from_onion_error(routing_failure,
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failure->msg);
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retry_plausible = true;
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report_to_gossipd = true;
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assert(origin_index < tal_count(route_nodes));
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/* Check if at destination. */
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if (origin_index == tal_count(route_nodes) - 1) {
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erring_channel = &dummy_channel;
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/* BOLT #4:
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*
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* - if the _final node_ is returning the error:
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* - if the PERM bit is set:
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* - SHOULD fail the payment.
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* */
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if (failcode & PERM)
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retry_plausible = false;
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else
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retry_plausible = true;
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/* Only send message to gossipd if NODE error;
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* there is no "next" channel to report as
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* failing if this is the last node. */
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if (failcode & NODE)
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report_to_gossipd = true;
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else
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report_to_gossipd = false;
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} else
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/* Report the *next* channel as failing. */
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erring_channel = &route_channels[origin_index + 1];
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erring_node = &route_nodes[origin_index];
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routing_failure->erring_index = (unsigned int) (origin_index + 1);
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routing_failure->failcode = failcode;
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routing_failure->erring_node = *erring_node;
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routing_failure->erring_channel = *erring_channel;
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routing_failure->channel_update = channel_update;
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*p_retry_plausible = retry_plausible;
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*p_report_to_gossipd = report_to_gossipd;
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return routing_failure;
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}
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static void random_mark_channel_unroutable(struct log *log,
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struct subd *gossip,
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struct short_channel_id *route_channels)
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{
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const tal_t *tmpctx = tal_tmpctx(gossip);
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size_t num_channels = tal_count(route_channels);
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size_t i;
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const struct short_channel_id *channel;
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u8 *msg;
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assert(num_channels != 0);
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/* Select one channel by random. */
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randombytes_buf(&i, sizeof(i));
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i = i % num_channels;
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channel = &route_channels[i];
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log_debug(log,
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"Disable randomly %dth channel (%s) along route "
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"(guessing due to bad reply)",
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(int) i,
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type_to_string(tmpctx, struct short_channel_id,
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channel));
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msg = towire_gossip_mark_channel_unroutable(tmpctx, channel);
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subd_send_msg(gossip, msg);
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tal_free(tmpctx);
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}
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static void report_routing_failure(struct log *log,
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struct subd *gossip,
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struct routing_failure *fail)
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{
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const tal_t *tmpctx = tal_tmpctx(gossip);
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u8 *gossip_msg;
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assert(fail);
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log_debug(log,
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"Reporting route failure to gossipd: 0x%04x (%s) "
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"node %s channel %s update %s",
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fail->failcode, onion_type_name(fail->failcode),
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type_to_string(tmpctx, struct pubkey,
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&fail->erring_node),
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type_to_string(tmpctx, struct short_channel_id,
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&fail->erring_channel),
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tal_hex(tmpctx, fail->channel_update));
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gossip_msg = towire_gossip_routing_failure(tmpctx,
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&fail->erring_node,
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&fail->erring_channel,
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(u16) fail->failcode,
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fail->channel_update);
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subd_send_msg(gossip, gossip_msg);
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tal_free(tmpctx);
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}
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void payment_failed(struct lightningd *ld, const struct htlc_out *hout,
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const char *localfail)
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{
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struct onionreply *reply;
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enum onion_type failcode;
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struct secret *path_secrets;
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struct wallet_payment *payment;
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const tal_t *tmpctx = tal_tmpctx(ld);
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struct routing_failure* fail = NULL;
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const char *failmsg;
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bool retry_plausible;
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bool report_to_gossipd;
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payment = wallet_payment_by_hash(tmpctx, ld->wallet,
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&hout->payment_hash);
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/* FIXME: Prior to 299b280f7, we didn't put route_nodes and
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* route_channels in db. If this happens, it's an old payment,
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* so we can simply mark it failed in db and return. */
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if (!payment->route_channels) {
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log_unusual(hout->key.channel->log,
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"No route_channels for htlc %s:"
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" was this an old database?",
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type_to_string(ltmp, struct sha256,
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&hout->payment_hash));
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wallet_payment_set_status(ld->wallet, &hout->payment_hash,
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PAYMENT_FAILED, NULL);
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tal_free(tmpctx);
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return;
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}
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/* This gives more details than a generic failure message */
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if (localfail) {
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fail = local_routing_failure(tmpctx, ld, hout, payment);
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failcode = fail->failcode;
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failmsg = localfail;
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retry_plausible = true;
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report_to_gossipd = true;
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} else {
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/* Must be remote fail. */
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assert(!hout->failcode);
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failmsg = "reply from remote";
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/* Try to parse reply. */
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path_secrets = payment->path_secrets;
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reply = unwrap_onionreply(tmpctx, path_secrets,
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tal_count(path_secrets),
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hout->failuremsg);
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if (!reply) {
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log_info(hout->key.channel->log,
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"htlc %"PRIu64" failed with bad reply (%s)",
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hout->key.id,
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tal_hex(ltmp, hout->failuremsg));
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/* Cannot report failure. */
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fail = NULL;
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failcode = WIRE_PERMANENT_NODE_FAILURE;
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/* Select a channel to mark unroutable by random */
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random_mark_channel_unroutable(hout->key.channel->log,
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ld->gossip,
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payment->route_channels);
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/* Can now retry; we selected a channel to mark
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* unroutable by random */
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retry_plausible = true;
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/* Already reported something to gossipd, do not
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* report anything else */
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report_to_gossipd = false;
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} else {
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failcode = fromwire_peektype(reply->msg);
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log_info(hout->key.channel->log,
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"htlc %"PRIu64" "
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"failed from %ith node "
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"with code 0x%04x (%s)",
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hout->key.id,
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reply->origin_index,
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failcode, onion_type_name(failcode));
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fail = remote_routing_failure(tmpctx,
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&retry_plausible,
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&report_to_gossipd,
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payment, reply);
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}
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}
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/* This may invalidated the payment structure returned, so
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* access to payment object should not be done after the
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* below call. */
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wallet_payment_set_status(ld->wallet, &hout->payment_hash,
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PAYMENT_FAILED, NULL);
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/* Report to gossipd if we decided we should. */
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if (report_to_gossipd)
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report_routing_failure(ld->log, ld->gossip, fail);
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/* Report to client. */
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sendpay_route_failure(ld, &hout->payment_hash,
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retry_plausible, fail, hout->failuremsg,
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failmsg);
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tal_free(tmpctx);
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}
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/* Returns false if we called callback directly, true if
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* callback is scheduled for later.
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*
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* This call expects that if it calls the callback, then
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* the given context should have been freed. */
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bool send_payment(const tal_t *ctx,
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struct lightningd* ld,
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const struct sha256 *rhash,
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const struct route_hop *route,
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void (*cb)(const struct sendpay_result*, void*),
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void *cbarg)
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{
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const u8 *onion;
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u8 sessionkey[32];
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unsigned int base_expiry;
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struct onionpacket *packet;
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struct secret *path_secrets;
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enum onion_type failcode;
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const tal_t *tmpctx = tal_tmpctx(ctx);
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size_t i, n_hops = tal_count(route);
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struct hop_data *hop_data = tal_arr(tmpctx, struct hop_data, n_hops);
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struct pubkey *ids = tal_arr(tmpctx, struct pubkey, n_hops);
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struct wallet_payment *payment = NULL;
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struct htlc_out *hout;
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struct short_channel_id *channels;
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struct routing_failure *fail;
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struct channel *channel;
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/* Expiry for HTLCs is absolute. And add one to give some margin. */
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base_expiry = get_block_height(ld->topology) + 1;
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/* Extract IDs for each hop: create_onionpacket wants array. */
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for (i = 0; i < n_hops; i++)
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ids[i] = route[i].nodeid;
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/* Copy hop_data[n] from route[n+1] (ie. where it goes next) */
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for (i = 0; i < n_hops - 1; i++) {
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hop_data[i].realm = 0;
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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);
|
|
|