param_ callback for `invstring`: canonicalizes and decodes offer/BIP353. */
| 410 | |
| 411 | /* param_ callback for `invstring`: canonicalizes and decodes offer/BIP353. */ |
| 412 | static struct command_result *param_bolt12_invstring(struct command *cmd, |
| 413 | const char *name, |
| 414 | const char *buf, |
| 415 | const jsmntok_t *tok, |
| 416 | struct bolt12_invinfo **invinfo) |
| 417 | { |
| 418 | const char *invstring = to_canonical_invstr(cmd, json_strdup(tmpctx, buf, tok)); |
| 419 | const char *fail; |
| 420 | |
| 421 | *invinfo = tal(cmd, struct bolt12_invinfo); |
| 422 | (*invinfo)->invstring = invstring; |
| 423 | |
| 424 | if (strstarts(invstring, "lni1")) { |
| 425 | (*invinfo)->type = INVTYPE_INVOICE; |
| 426 | } else if (strstarts(invstring, "lno1")) { |
| 427 | struct tlv_offer *offer; |
| 428 | offer = offer_decode(tmpctx, invstring, strlen(invstring), |
| 429 | NULL, chainparams, &fail); |
| 430 | if (!offer) |
| 431 | return command_fail_badparam(cmd, name, buf, tok, |
| 432 | tal_fmt(tmpctx, "Invalid offer: %s", fail)); |
| 433 | offer_offer_id(offer, &(*invinfo)->offer_id); |
| 434 | (*invinfo)->type = INVTYPE_OFFER; |
| 435 | } else if (strchr(invstring, '@')) { |
| 436 | /* BOLT #12: |
| 437 | * - if it received the offer from which it constructed this |
| 438 | * `invoice_request` using BIP 353 resolution: |
| 439 | * - MUST include `invreq_bip_353_name` with, |
| 440 | * - `name` set to the post-₿, pre-@ part of the BIP 353 HRN, |
| 441 | * - `domain` set to the post-@ part of the BIP 353 HRN. |
| 442 | */ |
| 443 | char *str = json_strdup(tmpctx, buf, tok); |
| 444 | char *at; |
| 445 | |
| 446 | if (!utf8_check(str, strlen(str))) |
| 447 | return command_fail_badparam(cmd, name, buf, tok, |
| 448 | "Invalid UTF-8"); |
| 449 | /* Strip ₿ if present (0xE2 0x82 0xBF) */ |
| 450 | if (strstarts(str, "₿")) |
| 451 | str += strlen("₿"); |
| 452 | at = strchr(str, '@'); |
| 453 | if (!at) |
| 454 | return command_fail_badparam(cmd, name, buf, tok, |
| 455 | "Missing @ in BIP353 address"); |
| 456 | (*invinfo)->bip353.name |
| 457 | = tal_dup_arr(*invinfo, u8, (const u8 *)str, |
| 458 | at - str, 0); |
| 459 | (*invinfo)->bip353.domain |
| 460 | = tal_dup_arr(*invinfo, u8, (const u8 *)(at + 1), |
| 461 | strlen(at + 1), 0); |
| 462 | (*invinfo)->type = INVTYPE_BIP353; |
| 463 | } else { |
| 464 | return command_fail_badparam(cmd, name, buf, tok, |
| 465 | "Expected bolt12 invoice (lni1...), " |
| 466 | "offer (lno1...), or user@domain"); |
| 467 | } |
| 468 | return NULL; |
| 469 | } |
nothing calls this directly
no test coverage detected