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plugins/pay: allow bolt12 invoices (EXPERIMENTAL_FEATURES). 

Note that we remove the redundant "is this the correct chain?"
check, since bolt11_decode and bolt12_decode do that internally
anyway (this was changed in 924cc04bd2).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
ppa
Rusty Russell 4 years ago
committed by Christian Decker
parent
a33e39b7e8
commit
9fe612db20
2 changed files with 103 additions and 30 deletions
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  1. 6
      plugins/Makefile
  2. 127
      plugins/pay.c

6
plugins/Makefile
View File

@ -1,6 +1,10 @@
PLUGIN_PAY_SRC := plugins/pay.c
PLUGIN_PAY_OBJS := $(PLUGIN_PAY_SRC:.c=.o)
ifeq ($(EXPERIMENTAL_FEATURES),1)
PLUGIN_PAY_EXPERIMENTAL_OBJS := common/bolt12.o common/bolt12_merkle.o wire/bolt12_exp_wiregen.o bitcoin/block.o
endif
PLUGIN_AUTOCLEAN_SRC := plugins/autoclean.c
PLUGIN_AUTOCLEAN_OBJS := $(PLUGIN_AUTOCLEAN_SRC:.c=.o)
@ -104,7 +108,7 @@ PLUGIN_COMMON_OBJS := \
wire/tlvstream.o \
wire/towire.o
plugins/pay: bitcoin/chainparams.o $(PLUGIN_PAY_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_PAY_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS) common/gossmap.o common/route.o common/dijkstra.o
plugins/pay: bitcoin/chainparams.o $(PLUGIN_PAY_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_PAY_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS) common/gossmap.o common/route.o common/dijkstra.o $(PLUGIN_PAY_EXPERIMENTAL_OBJS)
$(PLUGIN_PAY_OBJS): $(PLUGIN_PAY_LIB_HEADER)
plugins/autoclean: bitcoin/chainparams.o $(PLUGIN_AUTOCLEAN_OBJS) $(PLUGIN_LIB_OBJS) $(PLUGIN_COMMON_OBJS) $(JSMN_OBJS) $(CCAN_OBJS)

127
plugins/pay.c
View File

@ -9,9 +9,14 @@
#include <ccan/tal/str/str.h>
#include <common/amount.h>
#include <common/bolt11.h>
#if EXPERIMENTAL_FEATURES
#include <common/bolt12.h>
#include <common/bolt12_merkle.h>
#endif
#include <common/errcode.h>
#include <common/features.h>
#include <common/gossip_constants.h>
#include <common/gossmap.h>
#include <common/json_stream.h>
#include <common/pseudorand.h>
#include <common/type_to_string.h>
@ -1881,7 +1886,7 @@ static struct command_result *json_listpays(struct command *cmd,
/* FIXME: would be nice to parse as a bolt11 so check worked in future */
if (!param(cmd, buf, params,
/* FIXME: paramter should be invstring now */
/* FIXME: parameter should be invstring now */
p_opt("bolt11", param_string, &invstring),
p_opt("payment_hash", param_sha256, &payment_hash),
NULL))
@ -1962,8 +1967,11 @@ static struct command_result *json_paymod(struct command *cmd,
unsigned int *retryfor;
u64 *riskfactor_millionths;
struct shadow_route_data *shadow_route;
struct amount_msat *invmsat;
u64 invexpiry;
#if EXPERIMENTAL_FEATURES
struct sha256 *local_offer_id;
const struct tlv_invoice *b12;
#endif
#if DEVELOPER
bool *use_shadow;
@ -1972,7 +1980,9 @@ static struct command_result *json_paymod(struct command *cmd,
/* If any of the modifiers need to add params to the JSON-RPC call we
* would add them to the `param()` call below, and have them be
* initialized directly that way. */
if (!param(cmd, buf, params, p_req("bolt11", param_string, &b11str),
if (!param(cmd, buf, params,
/* FIXME: parameter should be invstring now */
p_req("bolt11", param_string, &b11str),
p_opt("msatoshi", param_msat, &msat),
p_opt("label", param_string, &label),
p_opt_def("riskfactor", param_millionths,
@ -1993,28 +2003,104 @@ static struct command_result *json_paymod(struct command *cmd,
return command_param_failed();
p = payment_new(cmd, cmd, NULL /* No parent */, paymod_mods);
p->invstring = tal_steal(p, b11str);
b11 = bolt11_decode(cmd, b11str, plugin_feature_set(cmd->plugin),
NULL, chainparams, &fail);
if (!b11)
if (b11) {
invmsat = b11->msat;
invexpiry = b11->timestamp + b11->expiry;
p->destination = tal_dup(p, struct node_id, &b11->receiver_id);
p->destination_has_tlv = feature_offered(b11->features,
OPT_VAR_ONION);
p->payment_hash = tal_dup(p, struct sha256, &b11->payment_hash);
p->payment_secret = b11->payment_secret
? tal_dup(p, struct secret, b11->payment_secret)
: NULL;
p->routes = tal_steal(p, b11->routes);
p->min_final_cltv_expiry = b11->min_final_cltv_expiry;
p->features = tal_steal(p, b11->features);
/* Sanity check */
if (feature_offered(b11->features, OPT_VAR_ONION)
&& !b11->payment_secret)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"Invalid bolt11:"
" sets feature var_onion with no secret");
#if EXPERIMENTAL_FEATURES
} else if ((b12 = invoice_decode(cmd, b11str, strlen(b11str),
plugin_feature_set(cmd->plugin),
chainparams, &fail)) != NULL) {
p->features = tal_steal(p, b12->features);
if (!b12->node_id)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"invoice missing node_id");
if (!b12->payment_hash)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"invoice missing payment_hash");
if (!b12->timestamp)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"invoice missing timestamp");
if (b12->amount) {
invmsat = tal(cmd, struct amount_msat);
*invmsat = amount_msat(*b12->amount);
} else
invmsat = NULL;
/* FIXME: gossmap should store as pubkey32 */
p->destination = tal(p, struct node_id);
gossmap_guess_node_id(get_gossmap(cmd->plugin),
b12->node_id,
p->destination);
p->destination_has_tlv = true;
p->payment_hash = tal_dup(p, struct sha256, b12->payment_hash);
if (b12->recurrence_counter && !label)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"recurring invoice requires a label");
/* FIXME payment_secret should be signature! */
{
struct sha256 merkle;
p->payment_secret = tal(p, struct secret);
merkle_tlv(b12->fields, &merkle);
memcpy(p->payment_secret, &merkle, sizeof(merkle));
BUILD_ASSERT(sizeof(*p->payment_secret) == sizeof(merkle));
}
p->routes = NULL;
/* FIXME: paths! */
if (b12->cltv)
p->min_final_cltv_expiry = *b12->cltv;
else
p->min_final_cltv_expiry = 18;
/* BOLT-offers #12:
* - if `relative_expiry` is present:
* - MUST reject the invoice if the current time since
* 1970-01-01 UTC is greater than `timestamp` plus
* `seconds_from_timestamp`.
* - otherwise:
* - MUST reject the invoice if the current time since
* 1970-01-01 UTC is greater than `timestamp` plus 7200.
*/
if (b12->relative_expiry)
invexpiry = *b12->timestamp + *b12->relative_expiry;
else
invexpiry = *b12->timestamp + 7200;
p->local_offer_id = tal_steal(p, local_offer_id);
#endif /* EXPERIMENTAL_FEATURES */
} else
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"Invalid bolt11: %s", fail);
if (!b11->chain)
return command_fail(cmd, PAY_ROUTE_NOT_FOUND, "Invoice is for an unknown network");
if (b11->chain != chainparams)
return command_fail(cmd, PAY_ROUTE_NOT_FOUND, "Invoice is for another network %s", b11->chain->network_name);
if (time_now().ts.tv_sec > b11->timestamp + b11->expiry)
if (time_now().ts.tv_sec > invexpiry)
return command_fail(cmd, PAY_INVOICE_EXPIRED, "Invoice expired");
if (b11->msat) {
if (invmsat) {
if (msat) {
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"msatoshi parameter unnecessary");
}
p->amount = *b11->msat;
p->amount = *invmsat;
} else {
if (!msat) {
@ -2024,26 +2110,9 @@ static struct command_result *json_paymod(struct command *cmd,
p->amount = *msat;
}
/* Sanity check */
if (feature_offered(b11->features, OPT_VAR_ONION)
&& !b11->payment_secret)
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"Invalid bolt11:"
" sets feature var_onion with no secret");
p->local_id = &my_id;
p->json_buffer = tal_steal(p, buf);
p->json_toks = params;
p->destination = tal_dup(p, struct node_id, &b11->receiver_id);
p->destination_has_tlv = feature_offered(b11->features, OPT_VAR_ONION);
p->payment_hash = tal_dup(p, struct sha256, &b11->payment_hash);
p->payment_secret = b11->payment_secret
? tal_dup(p, struct secret, b11->payment_secret)
: NULL;
p->routes = tal_steal(p, b11->routes);
p->min_final_cltv_expiry = b11->min_final_cltv_expiry;
p->features = tal_steal(p, b11->features);
p->invstring = tal_steal(p, b11str);
p->why = "Initial attempt";
p->constraints.cltv_budget = *maxdelay;
p->deadline = timeabs_add(time_now(), time_from_sec(*retryfor));

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