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renepay: add rpc that replaces sendpay
Add an rpc to renepay that is similar to sendpay that handles BOLT11 and BOLT12 payments. This is not the most elegant solution but it is a workaround until we implement it into lightningd which has more development friction. Changelog-None. Signed-off-by: Lagrang3 <lagrang3@protonmail.com>
This commit is contained in:
Lagrang3
Rusty Russell
parent
af66bf2235
commit
5b7f0eacf4
4 changed files with 453 additions and 1 deletions
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@ -10,6 +10,7 @@ PLUGIN_RENEPAY_SRC := \
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plugins/renepay/routebuilder.c \
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plugins/renepay/routetracker.c \
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plugins/renepay/routefail.c \
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plugins/renepay/sendpay.c \
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plugins/renepay/uncertainty.c \
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plugins/renepay/mods.c \
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plugins/renepay/errorcodes.c \
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@ -29,6 +30,7 @@ PLUGIN_RENEPAY_HDRS := \
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plugins/renepay/routebuilder.h \
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plugins/renepay/routetracker.h \
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plugins/renepay/routefail.h \
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plugins/renepay/sendpay.h \
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plugins/renepay/uncertainty.h \
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plugins/renepay/mods.h \
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plugins/renepay/errorcodes.h \
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@ -43,6 +45,6 @@ PLUGIN_ALL_HEADER += $(PLUGIN_RENEPAY_HDRS)
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# Make all plugins depend on all plugin headers, for simplicity.
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$(PLUGIN_RENEPAY_OBJS): $(PLUGIN_RENEPAY_HDRS)
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plugins/cln-renepay: $(PLUGIN_RENEPAY_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS) bitcoin/chainparams.o common/gossmap.o common/gossmods_listpeerchannels.o common/fp16.o common/dijkstra.o common/bolt12.o common/bolt12_merkle.o common/sciddir_or_pubkey.o wire/bolt12_wiregen.o wire/onion_wiregen.o
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plugins/cln-renepay: $(PLUGIN_RENEPAY_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS) bitcoin/chainparams.o common/gossmap.o common/gossmods_listpeerchannels.o common/fp16.o common/dijkstra.o common/bolt12.o common/bolt12_merkle.o common/sciddir_or_pubkey.o wire/bolt12_wiregen.o wire/onion_wiregen.o common/sphinx.o common/onion_encode.o common/hmac.o common/onionreply.o
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include plugins/renepay/test/Makefile
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@ -17,6 +17,7 @@
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#include <plugins/renepay/mods.h>
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#include <plugins/renepay/payplugin.h>
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#include <plugins/renepay/routetracker.h>
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#include <plugins/renepay/sendpay.h>
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#include <stdio.h>
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// TODO(eduardo): notice that pending attempts performed with another
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@ -459,6 +460,10 @@ static const struct plugin_command commands[] = {
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"renepay",
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json_pay
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},
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{
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"renesendpay",
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json_renesendpay
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},
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};
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static const struct plugin_notification notifications[] = {
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435
plugins/renepay/sendpay.c
Normal file
435
plugins/renepay/sendpay.c
Normal file
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@ -0,0 +1,435 @@
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#include "config.h"
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#include <common/json_param.h>
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#include <common/json_stream.h>
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#include <common/onion_encode.h>
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#include <plugins/renepay/payplugin.h>
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#include <plugins/renepay/sendpay.h>
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static struct command_result *param_route_hops(struct command *cmd,
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const char *name,
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const char *buffer,
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const jsmntok_t *tok,
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struct route_hop **hops)
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{
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size_t i;
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const jsmntok_t *t;
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const char *err;
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if (tok->type != JSMN_ARRAY)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"%s must be an array", name);
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*hops = tal_arr(cmd, struct route_hop, tok->size);
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json_for_each_arr(i, t, tok)
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{
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struct amount_msat amount_msat;
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struct node_id id;
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struct short_channel_id channel;
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unsigned delay, direction;
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err = json_scan(tmpctx, buffer, t,
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"{amount_msat:%,id:%,channel:%,direction:%,delay:%}",
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JSON_SCAN(json_to_msat, &amount_msat),
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JSON_SCAN(json_to_node_id, &id),
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JSON_SCAN(json_to_short_channel_id, &channel),
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JSON_SCAN(json_to_number, &direction),
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JSON_SCAN(json_to_number, &delay)
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);
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if (err != NULL) {
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return command_fail(
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cmd, JSONRPC2_INVALID_PARAMS,
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"Error parsing route_hop %s[%zu]: %s", name, i,
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err);
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}
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if (direction != 0 && direction != 1)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"direction must be either 0 or 1");
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(*hops)[i].amount = amount_msat;
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(*hops)[i].node_id = id;
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(*hops)[i].delay = delay;
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(*hops)[i].scid = channel;
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(*hops)[i].direction = direction;
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}
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return NULL;
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}
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static struct command_result *param_blinded_path(struct command *cmd,
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const char *name,
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const char *buffer,
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const jsmntok_t *tok,
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struct blinded_path **blinded_path)
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{
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size_t i;
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const jsmntok_t *t, *pathtok, *datatok;
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const char *err;
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*blinded_path = tal(cmd, struct blinded_path);
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err = json_scan(
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tmpctx, buffer, tok, "{first_node_id:%,first_path_key:%}",
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JSON_SCAN(json_to_pubkey, &(*blinded_path)->first_node_id.pubkey),
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JSON_SCAN(json_to_pubkey, &(*blinded_path)->first_path_key));
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if (err != NULL) {
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"Error parsing blinded_path %s: %s", name,
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err);
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}
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pathtok = json_get_member(buffer, tok, "path");
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if (!pathtok)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"%s does not have a path", name);
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if (pathtok->type != JSMN_ARRAY)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"path in %s must be an array", name);
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(*blinded_path)->path =
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tal_arr(*blinded_path, struct blinded_path_hop *, pathtok->size);
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json_for_each_arr(i, t, pathtok)
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{
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(*blinded_path)->path[i] =
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tal((*blinded_path)->path, struct blinded_path_hop);
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struct blinded_path_hop *hop = (*blinded_path)->path[i];
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err =
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json_scan(tmpctx, buffer, t, "{blinded_node_id:%}",
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JSON_SCAN(json_to_pubkey, &hop->blinded_node_id));
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if (err != NULL)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"Error parsing path[%zu]: %s", i,
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err);
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datatok =
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json_get_member(buffer, t, "encrypted_recipient_data");
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if (!datatok)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"Error parsing path[%zu]: unable "
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"to get encrypted_recipient_data",
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i);
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hop->encrypted_recipient_data =
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json_tok_bin_from_hex(hop, buffer, datatok);
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}
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return NULL;
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}
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struct renesendpay {
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struct route_hop *route;
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struct sha256 payment_hash;
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u64 groupid, partid;
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u32 final_cltv;
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struct amount_msat total_amount;
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struct amount_msat deliver_amount;
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struct amount_msat sent_amount;
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struct node_id destination;
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struct secret *payment_secret;
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struct blinded_path *blinded_path;
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const char *invoice, *label, *description;
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const u8 *metadata;
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struct secret *shared_secrets;
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unsigned int blockheight;
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};
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static struct command_result *sendpay_rpc_failure(struct command *cmd,
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const char *method UNUSED,
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const char *buffer,
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const jsmntok_t *toks,
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struct renesendpay *renesendpay)
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{
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const jsmntok_t *codetok = json_get_member(buffer, toks, "code");
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u32 errcode;
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if (codetok != NULL)
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json_to_u32(buffer, codetok, &errcode);
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else
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errcode = LIGHTNINGD;
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return command_fail(
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cmd, errcode, "renesendpay failed to error in RPC: %.*s",
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json_tok_full_len(toks), json_tok_full(buffer, toks));
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}
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static void sphinx_append_blinded_path(const tal_t *ctx,
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struct sphinx_path *sp,
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const struct blinded_path *blinded_path,
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const struct amount_msat deliver,
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const struct amount_msat total,
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const u32 final_cltv)
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{
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const size_t pathlen = tal_count(blinded_path->path);
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bool ret;
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for (size_t i = 0; i < pathlen; i++) {
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bool first = (i == 0);
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bool final = (i == pathlen - 1);
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const struct blinded_path_hop *bhop = blinded_path->path[i];
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const u8 *payload = onion_blinded_hop(
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ctx, final ? &deliver : NULL, final ? &total : NULL,
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final ? &final_cltv : NULL, bhop->encrypted_recipient_data,
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first ? &blinded_path->first_path_key : NULL);
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// FIXME: better handle error here
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ret = sphinx_add_hop_has_length(
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sp,
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first ? &blinded_path->first_node_id.pubkey
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: &bhop->blinded_node_id,
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take(payload));
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assert(ret);
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}
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}
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static void sphinx_append_final_hop(const tal_t *ctx,
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struct sphinx_path *sp,
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const struct secret *payment_secret,
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const struct node_id *node,
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const struct amount_msat deliver,
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const struct amount_msat total,
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const u32 final_cltv,
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const u8 *payment_metadata)
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{
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struct pubkey destination;
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bool ret = pubkey_from_node_id(&destination, node);
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assert(ret);
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const u8 *payload = onion_final_hop(ctx, deliver, final_cltv, total,
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payment_secret, payment_metadata);
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// FIXME: better handle error here
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ret = sphinx_add_hop_has_length(sp, &destination, take(payload));
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assert(ret);
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}
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static const u8 *create_onion(const tal_t *ctx, struct renesendpay *renesendpay)
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{
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bool ret;
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const tal_t *this_ctx = tal(ctx, tal_t);
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struct pubkey node;
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const u8 *payload;
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const size_t pathlen = tal_count(renesendpay->route);
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struct sphinx_path *sp =
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sphinx_path_new(this_ctx, renesendpay->payment_hash.u.u8,
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sizeof(renesendpay->payment_hash.u.u8));
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for (size_t i = 0; i < pathlen - 1; i++) {
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/* Encrypted message is for node[i] but the data is hop[i+1],
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* therein lays the problem with sendpay's API. */
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ret = pubkey_from_node_id(&node, &renesendpay->route[i].node_id);
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assert(ret);
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struct route_hop *hop = &renesendpay->route[i + 1];
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payload =
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onion_nonfinal_hop(this_ctx, &hop->scid, hop->amount,
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hop->delay + renesendpay->blockheight);
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// FIXME: better handle error here
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ret = sphinx_add_hop_has_length(sp, &node, take(payload));
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assert(ret);
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}
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const u32 final_cltv = renesendpay->final_cltv + renesendpay->blockheight;
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if(renesendpay->blinded_path){
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sphinx_append_blinded_path(this_ctx,
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sp,
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renesendpay->blinded_path,
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renesendpay->deliver_amount,
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renesendpay->total_amount,
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final_cltv);
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}else{
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sphinx_append_final_hop(this_ctx,
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sp,
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renesendpay->payment_secret,
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&renesendpay->destination,
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renesendpay->deliver_amount,
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renesendpay->total_amount,
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final_cltv,
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renesendpay->metadata);
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}
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struct secret *shared_secrets;
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struct onionpacket *packet = create_onionpacket(
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this_ctx, sp, ROUTING_INFO_SIZE, &shared_secrets);
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renesendpay->shared_secrets = tal_steal(renesendpay, shared_secrets);
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const u8 *onion = serialize_onionpacket(ctx, packet);
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tal_free(this_ctx);
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return onion;
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}
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static struct command_result *sendonion_done(struct command *cmd,
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const char *method UNUSED,
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const char *buffer,
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const jsmntok_t *toks,
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struct renesendpay *renesendpay)
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{
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const char *err;
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u64 created_index;
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u32 timestamp;
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err = json_scan(tmpctx, buffer, toks, "{created_index:%,created_at:%}",
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JSON_SCAN(json_to_u64, &created_index),
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JSON_SCAN(json_to_u32, ×tamp));
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if (err)
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return command_fail(
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cmd, JSONRPC2_INVALID_PARAMS,
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"renesendpay failed to read response from sendonion: %s",
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err);
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struct json_stream *response = jsonrpc_stream_success(cmd);
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json_add_string(response, "message",
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"Monitor status with listpays or waitsendpay");
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json_add_u64(response, "created_index", created_index);
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json_add_u32(response, "created_at", timestamp);
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json_add_sha256(response, "payment_hash", &renesendpay->payment_hash);
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json_add_u64(response, "groupid", renesendpay->groupid);
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json_add_u64(response, "partid", renesendpay->partid);
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json_add_node_id(response, "destination", &renesendpay->destination);
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json_add_amount_msat(response, "amount_sent_msat",
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renesendpay->sent_amount);
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json_add_amount_msat(response, "amount_delivered_msat",
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renesendpay->deliver_amount);
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json_add_amount_msat(response, "amount_total_msat",
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renesendpay->total_amount);
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json_add_string(response, "invoice", renesendpay->invoice);
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if (renesendpay->label)
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json_add_string(response, "label", renesendpay->label);
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if (renesendpay->description)
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json_add_string(response, "description",
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renesendpay->description);
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if (renesendpay->metadata)
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json_add_hex_talarr(response, "payment_metadata",
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renesendpay->metadata);
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/* FIXME: shall we report the blinded path, secret and route used? */
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return command_finished(cmd, response);
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}
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static struct command_result *waitblockheight_done(struct command *cmd,
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const char *method UNUSED,
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const char *buffer,
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const jsmntok_t *toks,
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struct renesendpay *renesendpay)
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{
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const char *err;
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err = json_scan(tmpctx, buffer, toks, "{blockheight:%}",
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JSON_SCAN(json_to_u32, &renesendpay->blockheight));
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renesendpay->blockheight += 1;
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if (err)
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return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
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"renesendpay failed to read blockheight "
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"from waitblockheight response.");
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const u8 *onion = create_onion(tmpctx, renesendpay);
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struct out_req *req = jsonrpc_request_start(
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cmd, "sendonion", sendonion_done, sendpay_rpc_failure, renesendpay);
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json_add_hex_talarr(req->js, "onion", onion);
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json_add_sha256(req->js, "payment_hash", &renesendpay->payment_hash);
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json_add_u64(req->js, "partid", renesendpay->partid);
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json_add_u64(req->js, "groupid", renesendpay->groupid);
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json_add_node_id(req->js, "destination", &renesendpay->destination);
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json_add_amount_msat(req->js, "amount_msat", renesendpay->deliver_amount);
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const struct route_hop *hop = &renesendpay->route[0];
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json_object_start(req->js, "first_hop");
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json_add_amount_msat(req->js, "amount_msat", hop->amount);
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json_add_num(req->js, "delay", hop->delay + renesendpay->blockheight);
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json_add_node_id(req->js, "id", &hop->node_id);
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json_add_short_channel_id(req->js, "channel", hop->scid);
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json_object_end(req->js);
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json_array_start(req->js, "shared_secrets");
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for (size_t i = 0; i < tal_count(renesendpay->shared_secrets); i++) {
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json_add_secret(req->js, NULL, &renesendpay->shared_secrets[i]);
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}
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json_array_end(req->js);
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if (renesendpay->label)
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json_add_string(req->js, "label", renesendpay->label);
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if (renesendpay->description)
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json_add_string(req->js, "description",
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renesendpay->description);
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if (renesendpay->invoice)
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json_add_string(req->js, "bolt11", renesendpay->invoice);
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return send_outreq(req);
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}
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struct command_result *json_renesendpay(struct command *cmd,
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const char *buf,
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const jsmntok_t *params)
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{
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struct route_hop *route;
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||||
struct sha256 *payment_hash;
|
||||
const char *invoice, *label, *description;
|
||||
struct amount_msat *amount, *total_amount;
|
||||
u64 *groupid, *partid;
|
||||
u32 *final_cltv;
|
||||
struct node_id *destination;
|
||||
u8 *metadata;
|
||||
|
||||
/* only used in the case of BOLT11 */
|
||||
struct secret *payment_secret;
|
||||
|
||||
/* only used in the case of BOLT12 */
|
||||
struct blinded_path *blinded_path;
|
||||
|
||||
if (!param(cmd, buf, params,
|
||||
p_req("route", param_route_hops, &route),
|
||||
p_req("payment_hash", param_sha256, &payment_hash),
|
||||
p_req("groupid", param_u64, &groupid),
|
||||
p_req("partid", param_u64, &partid),
|
||||
p_req("amount_msat", param_msat, &amount),
|
||||
p_req("total_amount_msat", param_msat, &total_amount),
|
||||
p_req("destination", param_node_id, &destination),
|
||||
p_req("final_cltv", param_u32, &final_cltv),
|
||||
p_opt("payment_secret", param_secret, &payment_secret),
|
||||
p_opt("blinded_path", param_blinded_path, &blinded_path),
|
||||
p_opt("invoice", param_invstring, &invoice),
|
||||
p_opt("label", param_string, &label),
|
||||
p_opt("description", param_string, &description),
|
||||
p_opt("metadata", param_bin_from_hex, &metadata),
|
||||
NULL))
|
||||
return command_param_failed();
|
||||
|
||||
if (payment_secret && blinded_path)
|
||||
return command_fail(
|
||||
cmd, JSONRPC2_INVALID_PARAMS,
|
||||
"A payment cannot have both a secret and a blinded path.");
|
||||
if (!payment_secret && !blinded_path)
|
||||
return command_fail(
|
||||
cmd, JSONRPC2_INVALID_PARAMS,
|
||||
"For a BOLT11 payment a payment_secret "
|
||||
"must be specified and for a BOLT12 "
|
||||
"payment a blinded_path must be specified.");
|
||||
|
||||
plugin_log(cmd->plugin, LOG_DBG, "renesendpay called: %.*s",
|
||||
json_tok_full_len(params), json_tok_full(buf, params));
|
||||
|
||||
struct renesendpay *renesendpay = tal(cmd, struct renesendpay);
|
||||
renesendpay->route = tal_steal(renesendpay, route);
|
||||
renesendpay->payment_hash = *payment_hash;
|
||||
renesendpay->partid = *partid;
|
||||
renesendpay->groupid = *groupid;
|
||||
|
||||
renesendpay->sent_amount = renesendpay->route[0].amount;
|
||||
renesendpay->total_amount = *total_amount;
|
||||
renesendpay->deliver_amount = *amount;
|
||||
renesendpay->final_cltv = *final_cltv;
|
||||
|
||||
renesendpay->destination = *destination;
|
||||
|
||||
renesendpay->payment_secret = tal_steal(renesendpay, payment_secret);
|
||||
renesendpay->blinded_path = tal_steal(renesendpay, blinded_path);
|
||||
|
||||
renesendpay->invoice = tal_steal(renesendpay, invoice);
|
||||
renesendpay->label = tal_steal(renesendpay, label);
|
||||
renesendpay->description = tal_steal(renesendpay, description);
|
||||
renesendpay->metadata = tal_steal(renesendpay, metadata);
|
||||
|
||||
struct out_req *req =
|
||||
jsonrpc_request_start(cmd, "waitblockheight", waitblockheight_done,
|
||||
sendpay_rpc_failure, renesendpay);
|
||||
json_add_num(req->js, "blockheight", 0);
|
||||
return send_outreq(req);
|
||||
}
|
||||
10
plugins/renepay/sendpay.h
Normal file
10
plugins/renepay/sendpay.h
Normal file
|
|
@ -0,0 +1,10 @@
|
|||
#ifndef LIGHTNING_PLUGINS_RENEPAY_SENDPAY_H
|
||||
#define LIGHTNING_PLUGINS_RENEPAY_SENDPAY_H
|
||||
|
||||
#include "config.h"
|
||||
|
||||
struct command_result *json_renesendpay(struct command *cmd,
|
||||
const char *buf,
|
||||
const jsmntok_t *params);
|
||||
|
||||
#endif /* LIGHTNING_PLUGINS_RENEPAY_SENDPAY_H */
|
||||
Loading…
Add table
Reference in a new issue