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feat(nip17): support gift-wrapped private direct messages
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Generalize the AUTH-gated, recipient-only delivery rule from NIP-04 to
also cover NIP-17 kind 1059 gift wraps. When the relay is configured to
require AUTH for kind 1059, only the AUTH'd recipient named in the
event's `p` tag receives it; otherwise gift wraps broadcast like any
regular event.

- relay/event.py: add `is_seal`, `is_gift_wrap`, `is_private_message`
  helpers (kinds 13, 1059)
- relay/client_connection.py: rename `_is_direct_message_for_other` ->
  `_is_private_event_for_other`; key off `is_private_message` so the
  same gating applies to kinds 4 and 1059
- relay/relay.py: advertise NIPs 17, 44, 59 in NIP-11 supported_nips
- README: document NIP-17/44/59 transport-level support
- tests/test_nip17.py: unit tests for kind classification, AUTH-gated
  1059 delivery (recipient vs non-recipient vs unauthenticated), and
  regression coverage for kind 4 gating

NIP-44 (encryption) and NIP-59 (wrap/seal) are client-side concerns;
the relay treats payloads as opaque ciphertext and stores kind 1059
like any regular event.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Padreug 2026-05-03 13:59:14 +02:00
commit 4811fcf352
5 changed files with 166 additions and 8 deletions
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README.md
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@ -35,6 +35,12 @@
- [x] Regular Events
- [x] Replaceable Events
- [x] Ephemeral Events
- [x] **NIP-17**: Private Direct Messages
- `kind: 1059` gift wraps stored and broadcast like regular events
- if `AUTH` enabled for `kind: 1059`: deliver only to the recipient
named in the `p` tag (same gating as NIP-04)
- encryption (NIP-44) and wrapping (NIP-59) are client-side concerns;
the relay handles transport only
- [x] **NIP-20**: Command Results
- todo: use correct prefixes
- [x] **NIP-22**: Event created_at Limits
@ -48,8 +54,12 @@
- todo
- [x] **NIP-42**: Authentication of clients to relays
- todo: use correct prefix
- [x] **NIP-44**: Encrypted Payloads (Versioned)
- relay treats payloads as opaque; encryption is client-side
- [ ] **NIP-50**: Search Capability
- todo
- [x] **NIP-59**: Gift Wrap
- `kind: 13` (seal) and `kind: 1059` (gift wrap) accepted; unwrapping is client-side
## Create Relay