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connectd: restore obs2 onion support.

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I removed these prematurely: we *haven't* had a release since
introducing them!

This consists of reverting d15d629b8b
"plugins/fetchinvoice: remove obsolete string-based API." and
plugins/fetchinvoice: remove obsolete string-based
API. "onion_messages: remove obs2 support."

Some minor changes due to updated fromwire_tlv API since they
were removed, but not much.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: REVERT: Removed backwards compat with onion messages from v0.10.1.
This commit is contained in:
Rusty Russell
2022-03-28 09:40:54 +10:30
parent 9e11ae1a0b
commit 20392ae526
25 changed files with 1254 additions and 99 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
common/json_helpers.c
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@@ -158,6 +158,42 @@ struct wally_psbt *json_to_psbt(const tal_t *ctx, const char *buffer,
return psbt_from_b64(ctx, buffer + tok->start, tok->end - tok->start);
}
struct tlv_obs2_onionmsg_payload_reply_path *
json_to_obs2_reply_path(const tal_t *ctx, const char *buffer, const jsmntok_t *tok)
{
struct tlv_obs2_onionmsg_payload_reply_path *rpath;
const jsmntok_t *hops, *t;
size_t i;
const char *err;
rpath = tal(ctx, struct tlv_obs2_onionmsg_payload_reply_path);
err = json_scan(tmpctx, buffer, tok, "{blinding:%,first_node_id:%}",
JSON_SCAN(json_to_pubkey, &rpath->blinding),
JSON_SCAN(json_to_pubkey, &rpath->first_node_id),
NULL);
if (err)
return tal_free(rpath);
hops = json_get_member(buffer, tok, "hops");
if (!hops || hops->size < 1)
return tal_free(rpath);
rpath->path = tal_arr(rpath, struct onionmsg_path *, hops->size);
json_for_each_arr(i, t, hops) {
rpath->path[i] = tal(rpath->path, struct onionmsg_path);
err = json_scan(tmpctx, buffer, t, "{id:%,encrypted_recipient_data:%}",
JSON_SCAN(json_to_pubkey,
&rpath->path[i]->node_id),
JSON_SCAN_TAL(rpath->path[i],
json_tok_bin_from_hex,
&rpath->path[i]->encrypted_recipient_data));
if (err)
return tal_free(rpath);
}
return rpath;
}
struct tlv_onionmsg_payload_reply_path *
json_to_reply_path(const tal_t *ctx, const char *buffer, const jsmntok_t *tok)
{