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- Make RateLimit explicit in relay builder (500 subs, 60 events/min)
- Add NGIT_MAX_CONNECTIONS config option (default: 500)
- Update all 4 config locations (src, nix, docs, .env.example)
- Fix documentation error: filter limit 5000→500
- Document Phase 2 deferral decision (per-IP enforcement)
Addresses primary DoS vector (connection exhaustion) with minimal code.
Per-IP rate limiting deferred until abuse detected in production.
Related: issue ff38 (git endpoint throttling - separate concern)
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- Update default bind address in src/config.rs to 127.0.0.1:7334
- Update all four critical config sources per AGENTS.md:
- src/config.rs (code default and tests)
- .env.example (development template)
- docs/reference/configuration.md (user documentation)
- nix/module.nix (NixOS deployment)
- Update all documentation examples and references:
- README.md (with note about phone keypad mnemonic)
- docs/how-to/*.md (deploy, prometheus-setup, test-compliance)
- docs/explanation/*.md (architecture, comparison)
- docs/learnings/grasp-audit.md
Port 7334 spells NGIT on a phone keypad, making it memorable and
project-specific.
All tests pass (336 lib tests + 51 integration tests).
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Adds NGIT_EVENT_BLACKLIST option for blocking all events from specific npubs,
taking precedence over all other validation to enable comprehensive moderation
without affecting curation policy.
Key features:
- Simple npub-only format: <npub>,<npub>,...
- Checked FIRST before any other validation (including repository blacklist)
- Blocks ALL event types (announcements, state events, PRs, comments, etc.)
- Events never reach relay storage or purgatory
- Specific rejection reason for operator debugging
Implementation:
- Add EventBlacklistConfig struct with check() method
- Add NGIT_EVENT_BLACKLIST config option and event_blacklist_config() method
- Add config field to PolicyContext for policy access
- Add check_event_blacklist() to Nip34WritePolicy
- Check event blacklist first in admit_event() method (before any other validation)
- 4 new unit tests covering all blacklist behavior
Configuration synced across all four sources:
- src/config.rs: Core implementation with EventBlacklistConfig
- .env.example: Comprehensive documentation with examples
- docs/reference/configuration.md: Complete reference documentation
- nix/module.nix: NixOS module option with environment mapping
README updates:
- Add comprehensive "Curation & Moderation" section
- Document repository whitelists (GRASP-01 and GRASP-05 modes)
- Document repository and event blacklists with precedence order
- Add configuration table for all curation/moderation settings
- Provide real-world examples for different relay configurations
Testing:
- 4 new tests for event blacklist functionality
- All 336 library tests passing
- All 64 integration tests passing
- All 38 filter support tests passing
Verification:
- Repository blacklist confirmed to apply to sync (uses same admit_event flow)
- Sync events validated through process_event_static -> write_policy.admit_event
Use cases:
- Block spam/abusive users completely
- Prevent malicious actors from submitting any events
- Temporary blocks for investigation
- Moderation without affecting whitelist curation policy
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Adds NGIT_REPOSITORY_BLACKLIST option for blocking repositories, taking precedence
over all whitelists (archive and repository) to enable moderation without affecting
curation policy.
Key features:
- Three blacklist formats: <npub>, <npub>/<identifier>, <identifier>
- Blacklist checked first before any other validation
- Overrides archive whitelist and repository whitelist
- Specific rejection reasons based on match type (npub/identifier/both)
- Not flagged in NIP-11 curation (operational, not policy)
Implementation:
- Add BlacklistConfig struct with check() method returning detailed reasons
- Add NGIT_REPOSITORY_BLACKLIST config option and blacklist_config() method
- Update validate_announcement() to check blacklist first with specific reasons
- 12 new unit tests covering all blacklist behavior and precedence
Configuration synced across all four sources:
- src/config.rs: Core implementation with BlacklistConfig
- .env.example: Comprehensive documentation with examples
- docs/reference/configuration.md: Complete reference documentation
- nix/module.nix: NixOS module option with environment mapping
Testing:
- 12 new tests for blacklist functionality (config + validation)
- All 332 library tests passing
- All 38 integration tests passing
Use cases:
- Block spam/malware repos by identifier
- Block abusive users by npub
- Block specific problematic repos by npub/identifier
- Temporary blocks for investigation
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Adds NGIT_REPOSITORY_WHITELIST option for curated relay operation that
accepts only whitelisted repositories while maintaining GRASP-01 compliance
(announcements must list the service). This differs from archive whitelist
which enables GRASP-05 mode and doesn't require service listing.
Key features:
- Supports three whitelist formats: npub, npub/identifier, identifier
- Enforces mutual exclusivity with archive read-only mode
- Updates NIP-11 curation field when whitelist is enabled
- Maintains GRASP-01 compliance (doesn't add GRASP-05 support)
Configuration synced across all four sources: src/config.rs, docs/reference/configuration.md,
nix/module.nix, and .env.example as required by AGENTS.md.
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Implements NGIT_ARCHIVE_READ_ONLY configuration option that defaults to true
when archive mode is enabled, allowing relays to operate as read-only syncs
of archived repositories.
Key changes:
- Add NGIT_ARCHIVE_READ_ONLY config option (defaults to true if archive enabled)
- NIP-11 advertises GRASP-05 support and includes curation field when read-only
- Validation logic rejects non-whitelisted repos in read-only mode
- Comprehensive tests for read-only behavior and defaults
- Full documentation in config reference, .env.example, and NixOS module
Read-only mode enables passive mirroring without being listed in announcements,
useful for backup/archive operations while preventing accidental write acceptance.
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Implements GRASP-05 specification for accepting repository announcements
that don't list this relay, enabling archive, mirror, and backup use cases.
Core Features:
- Three whitelist formats: <npub>, <npub>/<identifier>, <identifier>
- Archive-all mode for complete ecosystem mirrors
- Fail-fast npub validation at startup
- Read-only enforcement (archived repos reject pushes)
- Full GRASP-02 sync (git data + Nostr events)
- Dynamic archive status (no flags/metadata)
Implementation:
- Add ArchiveWhitelistEntry enum with Pubkey/Repository/Identifier variants
- Add ArchiveConfig with validation and matching logic
- Update AnnouncementResult to include AcceptArchive variant
- Refactor validate_announcement() to return AnnouncementResult with archive check
- Update AnnouncementPolicy with catch-all pattern for cleaner code
- Wire archive config through builder and policy layers
Configuration:
- NGIT_ARCHIVE_ALL: Accept all announcements (⚠️ storage risk)
- NGIT_ARCHIVE_WHITELIST: Comma-separated whitelist entries
- Updated docs, .env.example, and nix/module.nix
Testing:
- 28 unit tests for config parsing and whitelist matching
- 7 integration tests for archive mode validation
- All 296 tests passing
Validation Priority:
1. Lists our service → Accept (GRASP-01, read/write)
2. Is maintainer → AcceptMaintainer (multi-maintainer, read/write)
3. Matches archive config → AcceptArchive (GRASP-05, read-only)
4. None of above → Reject
Security Considerations:
- Archive-all mode has storage/bandwidth DoS risk
- Identifier-only format matches any pubkey (use npub/identifier for high-value)
- Invalid npubs cause startup failure (fail-fast)
Documentation:
- Concise explanation focused on rationale
- Reference docs updated with all config options
- README updated to reflect completed feature
- Removed from roadmap, added to compliance section
See docs/explanation/grasp-05-archive.md for details.
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Add mandatory uploadpack.allowFilter capability to support partial clones
and fetches as required by GRASP-01 specification. This enables efficient
git operations for bandwidth-constrained clients (e.g., browser-based git
clients like git-natural-api).
Changes:
- Add uploadpack.allowFilter=true to git subprocess configuration
- Update SmartGitServer test helper with filter support
- Add integration tests for filter capability advertisement and functionality
- Update documentation to reflect filter as required capability
Tests verify:
- Filter capability is advertised in info/refs
- Filtered clones with blob:none work correctly
- Filtered fetches with tree:0 work correctly
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- Add rejected events index to architecture.md with two-tier system explanation
- Document NGIT_REJECTED_HOT_CACHE_DURATION_SECS and NGIT_REJECTED_COLD_INDEX_EXPIRY_SECS in configuration.md
- Add comprehensive rejected events metrics section to monitoring.md with Grafana queries and alerts
- Explain negentropy integration with rejected index in grasp-02-proactive-sync.md
- Document state event authorization defense-in-depth and rejection tracking in inline-authorization.md
This integrates information from work/rejected-events-index-summary.md into the main documentation,
ensuring architecture docs accurately reflect the implemented rejected events index system.
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- Add SyncMetrics with full Prometheus integration
- Track sync gaps via catchup events
- Update Grafana dashboard with sync panels
- Document all sync configuration options
- Update design doc with implementation notes
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Add environment variable configuration for database backend selection:
- Added DatabaseBackend enum (memory, nostrdb, lmdb) in src/config.rs
- Updated relay builder to use configured backend in src/nostr/builder.rs
- Added NGIT_DATABASE_BACKEND to .env.example with documentation
- Updated docs/reference/configuration.md with backend comparison table
NostrDB and LMDB backends prepared for future implementation when
nostr-relay-builder adds support. Currently defaults to in-memory
database with warning logs when persistent backends are selected.
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