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plugin/offers: hoist send_onion_reply into core.

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We want to reuse it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2021-01-08 05:05:47 +10:30
parent 43f5304539
commit 6d1fe7e599
4 changed files with 85 additions and 65 deletions
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68
plugins/offers_invreq_hook.c
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@@ -7,6 +7,7 @@
#include <common/json_stream.h>
#include <common/overflows.h>
#include <common/type_to_string.h>
#include <plugins/offers.h>
#include <plugins/offers_invreq_hook.h>
#include <secp256k1_schnorrsig.h>
@@ -26,68 +27,6 @@ struct invreq {
struct preimage preimage;
};
static struct command_result *finished(struct command *cmd,
const char *buf,
const jsmntok_t *result,
void *unused)
{
return command_hook_success(cmd);
}
/* If we get an error trying to reply, don't try again! */
static struct command_result *error_noloop(struct command *cmd,
const char *buf,
const jsmntok_t *err,
void *unused)
{
plugin_log(cmd->plugin, LOG_BROKEN,
"sendoniomessage gave JSON error: %.*s",
json_tok_full_len(err),
json_tok_full(buf, err));
return command_hook_success(cmd);
}
static struct command_result *WARN_UNUSED_RESULT
send_onion_reply(struct command *cmd,
const struct invreq *ir,
const char *replyfield,
const u8 *replydata)
{
struct out_req *req;
size_t i;
const jsmntok_t *t;
plugin_log(cmd->plugin, LOG_DBG, "sending reply %s = %s",
replyfield, tal_hex(tmpctx, replydata));
/* Send to requester, using return route. */
req = jsonrpc_request_start(cmd->plugin, cmd, "sendonionmessage",
finished, error_noloop, NULL);
/* Add reply into last hop. */
json_array_start(req->js, "hops");
json_for_each_arr(i, t, ir->replytok) {
size_t j;
const jsmntok_t *t2;
plugin_log(cmd->plugin, LOG_DBG, "hops[%zu/%i]",
i, ir->replytok->size);
json_object_start(req->js, NULL);
json_for_each_obj(j, t2, t)
json_add_tok(req->js,
json_strdup(tmpctx, ir->buf, t2),
t2+1, ir->buf);
if (i == ir->replytok->size - 1) {
plugin_log(cmd->plugin, LOG_DBG, "... adding %s",
replyfield);
json_add_hex_talarr(req->js, replyfield, replydata);
}
json_object_end(req->js);
}
json_array_end(req->js);
return send_outreq(cmd->plugin, req);
}
static struct command_result *WARN_UNUSED_RESULT
fail_invreq_level(struct command *cmd,
const struct invreq *invreq,
@@ -120,7 +59,8 @@ fail_invreq_level(struct command *cmd,
errdata = tal_arr(cmd, u8, 0);
towire_invoice_error(&errdata, err);
return send_onion_reply(cmd, invreq, "invoice_error", errdata);
return send_onion_reply(cmd, invreq->buf, invreq->replytok,
"invoice_error", errdata);
}
static struct command_result *WARN_UNUSED_RESULT
@@ -238,7 +178,7 @@ static struct command_result *createinvoice_done(struct command *cmd,
json_tok_full(buf, t));
}
return send_onion_reply(cmd, ir, "invoice", rawinv);
return send_onion_reply(cmd, ir->buf, ir->replytok, "invoice", rawinv);
}
static struct command_result *create_invoicereq(struct command *cmd,