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plugin: Check that we have a non-empty route in libplugin

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Changelog-Fixed: pay: Payments with an empty route (self-payment) are now aborted.
This commit is contained in:
Christian Decker 2021-02-07 20:53:35 +01:00
parent d2281f53df
commit 9869083a79
2 changed files with 9 additions and 2 deletions
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6
plugins/libplugin-pay.c
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@ -807,6 +807,12 @@ static struct command_result *payment_getroute(struct payment *p)
p->step = PAYMENT_STEP_GOT_ROUTE;
p->route = route_hops_from_route(p, p, r);
if (tal_count(p->route) == 0) {
payment_root(p)->abort = true;
payment_fail(p, "Empty route returned by getroute, are you "
"trying to pay yourself?");
}
fee = payment_route_fee(p);
/* Ensure that our fee and CLTV budgets are respected. */

5
tests/test_pay.py
View file

@ -4134,7 +4134,6 @@ def test_sendinvoice(node_factory, bitcoind):
'label': 'test sendinvoice refund'})
@pytest.mark.xfail(strict=True)
def test_self_pay(node_factory):
"""Repro test for issue 4345: pay ourselves via the pay plugin.
@ -4142,4 +4141,6 @@ def test_self_pay(node_factory):
l1, l2 = node_factory.line_graph(2, wait_for_announce=True)
inv = l1.rpc.invoice(10000, 'test', 'test')['bolt11']
l1.rpc.pay(inv)
with pytest.raises(RpcError):
l1.rpc.pay(inv)