nip01 upload

2025-09-03 20:39:06 -04:00
parent 012b1d9752
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+# C Nostr Relay Database
+
+This directory contains the SQLite database schema and initialization scripts for the C Nostr Relay implementation.
+
+## Files
+
+- **`schema.sql`** - Complete database schema based on nostr-rs-relay v18
+- **`init.sh`** - Database initialization script
+- **`c_nostr_relay.db`** - SQLite database file (created after running init.sh)
+
+## Quick Start
+
+1. **Initialize the database:**
+   ```bash
+   cd db
+   ./init.sh
+   ```
+
+2. **Force reinitialize (removes existing database):**
+   ```bash
+   ./init.sh --force
+   ```
+
+3. **Initialize with optimization and info:**
+   ```bash
+   ./init.sh --info --optimize
+   ```
+
+## Database Schema
+
+The schema is fully compatible with the Nostr protocol and includes:
+
+### Core Tables
+
+- **`event`** - Main event storage with all Nostr event data
+- **`tag`** - Denormalized tag index for efficient queries
+- **`user_verification`** - NIP-05 verification tracking
+- **`account`** - User account management (optional)
+- **`invoice`** - Lightning payment tracking (optional)
+
+### Key Features
+
+- ✅ **NIP-01 compliant** - Full basic protocol support
+- ✅ **Replaceable events** - Supports kinds 0, 3, 10000-19999
+- ✅ **Parameterized replaceable** - Supports kinds 30000-39999 with `d` tags
+- ✅ **Event deletion** - NIP-09 soft deletion with `hidden` column
+- ✅ **Event expiration** - NIP-40 automatic cleanup
+- ✅ **Authentication** - NIP-42 client authentication
+- ✅ **NIP-05 verification** - Domain-based identity verification
+- ✅ **Performance optimized** - Comprehensive indexing strategy
+
+### Schema Version
+
+Current version: **v18** (compatible with nostr-rs-relay v18)
+
+## Database Structure
+
+### Event Storage
+```sql
+CREATE TABLE event (
+    id INTEGER PRIMARY KEY,
+    event_hash BLOB NOT NULL,        -- 32-byte SHA256 hash
+    first_seen INTEGER NOT NULL,     -- relay receive timestamp
+    created_at INTEGER NOT NULL,     -- event creation timestamp
+    expires_at INTEGER,              -- NIP-40 expiration
+    author BLOB NOT NULL,            -- 32-byte pubkey
+    delegated_by BLOB,               -- NIP-26 delegator
+    kind INTEGER NOT NULL,           -- event kind
+    hidden INTEGER DEFAULT FALSE,   -- soft deletion flag
+    content TEXT NOT NULL            -- complete JSON event
+);
+```
+
+### Tag Indexing
+```sql
+CREATE TABLE tag (
+    id INTEGER PRIMARY KEY,
+    event_id INTEGER NOT NULL,
+    name TEXT,                       -- tag name ("e", "p", etc.)
+    value TEXT,                      -- tag value
+    created_at INTEGER NOT NULL,     -- denormalized for performance
+    kind INTEGER NOT NULL            -- denormalized for performance
+);
+```
+
+## Performance Features
+
+### Optimized Indexes
+- **Hash-based lookups** - `event_hash_index` for O(1) event retrieval
+- **Author queries** - `author_index`, `author_created_at_index`
+- **Kind filtering** - `kind_index`, `kind_created_at_index`
+- **Tag searching** - `tag_covering_index` for efficient tag queries
+- **Composite queries** - Multi-column indexes for complex filters
+
+### Query Optimization
+- **Denormalized tags** - Includes `kind` and `created_at` in tag table
+- **Binary storage** - BLOBs for hex data (pubkeys, hashes)
+- **WAL mode** - Write-Ahead Logging for concurrent access
+- **Automatic cleanup** - Triggers for data integrity
+
+## Usage Examples
+
+### Basic Operations
+
+1. **Insert an event:**
+   ```sql
+   INSERT INTO event (event_hash, first_seen, created_at, author, kind, content)
+   VALUES (?, ?, ?, ?, ?, ?);
+   ```
+
+2. **Query by author:**
+   ```sql
+   SELECT content FROM event 
+   WHERE author = ? AND hidden != TRUE
+   ORDER BY created_at DESC;
+   ```
+
+3. **Filter by tags:**
+   ```sql
+   SELECT e.content FROM event e
+   JOIN tag t ON e.id = t.event_id
+   WHERE t.name = 'p' AND t.value = ? AND e.hidden != TRUE;
+   ```
+
+### Advanced Queries
+
+1. **Get replaceable event (latest only):**
+   ```sql
+   SELECT content FROM event
+   WHERE author = ? AND kind = ? AND hidden != TRUE
+   ORDER BY created_at DESC LIMIT 1;
+   ```
+
+2. **Tag-based filtering (NIP-01 filters):**
+   ```sql
+   SELECT e.content FROM event e
+   WHERE e.id IN (
+     SELECT t.event_id FROM tag t
+     WHERE t.name = ? AND t.value IN (?, ?, ?)
+   ) AND e.hidden != TRUE;
+   ```
+
+## Maintenance
+
+### Regular Operations
+
+1. **Check database integrity:**
+   ```bash
+   sqlite3 c_nostr_relay.db "PRAGMA integrity_check;"
+   ```
+
+2. **Optimize database:**
+   ```bash
+   sqlite3 c_nostr_relay.db "PRAGMA optimize; VACUUM; ANALYZE;"
+   ```
+
+3. **Clean expired events:**
+   ```sql
+   DELETE FROM event WHERE expires_at <= strftime('%s', 'now');
+   ```
+
+### Monitoring
+
+1. **Database size:**
+   ```bash
+   ls -lh c_nostr_relay.db
+   ```
+
+2. **Table statistics:**
+   ```sql
+   SELECT name, COUNT(*) as count FROM (
+     SELECT 'events' as name FROM event UNION ALL
+     SELECT 'tags' as name FROM tag UNION ALL
+     SELECT 'verifications' as name FROM user_verification
+   ) GROUP BY name;
+   ```
+
+## Migration Support
+
+The schema includes a migration system for future updates:
+
+```sql
+CREATE TABLE schema_info (
+    version INTEGER PRIMARY KEY,
+    applied_at INTEGER NOT NULL,
+    description TEXT
+);
+```
+
+## Security Considerations
+
+1. **Input validation** - Always validate event JSON and signatures
+2. **Rate limiting** - Implement at application level
+3. **Access control** - Use `account` table for permissions
+4. **Backup strategy** - Regular database backups recommended
+
+## Compatibility
+
+- **SQLite version** - Requires SQLite 3.8.0+
+- **nostr-rs-relay** - Schema compatible with v18
+- **NIPs supported** - 01, 02, 05, 09, 10, 11, 26, 40, 42
+- **C libraries** - Compatible with sqlite3 C API
+
+## Troubleshooting
+
+### Common Issues
+
+1. **Database locked error:**
+   - Ensure proper connection closing in your C code
+   - Check for long-running transactions
+
+2. **Performance issues:**
+   - Run `PRAGMA optimize;` regularly
+   - Consider `VACUUM` if database grew significantly
+
+3. **Schema errors:**
+   - Verify SQLite version compatibility
+   - Check foreign key constraints
+
+### Getting Help
+
+- Check the main project README for C implementation details
+- Review nostr-rs-relay documentation for reference implementation
+- Consult Nostr NIPs for protocol specifications
+
+## License
+
+This database schema is part of the C Nostr Relay project and follows the same license terms.
--- a/db/c_nostr_relay.db
+++ b/db/c_nostr_relay.db
--- a/db/c_nostr_relay.db-shm
+++ b/db/c_nostr_relay.db-shm
--- a/db/c_nostr_relay.db-wal
+++ b/db/c_nostr_relay.db-wal
--- a/db/init.sh
+++ b/db/init.sh
@@ -0,0 +1,234 @@
+#!/bin/bash
+
+# C Nostr Relay Database Initialization Script
+# Creates and initializes the SQLite database with proper schema
+
+set -e  # Exit on any error
+
+# Configuration
+DB_DIR="$(dirname "$0")"
+DB_NAME="c_nostr_relay.db"
+DB_PATH="${DB_DIR}/${DB_NAME}"
+SCHEMA_FILE="${DB_DIR}/schema.sql"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+# Logging functions
+log_info() {
+    echo -e "${BLUE}[INFO]${NC} $1"
+}
+
+log_success() {
+    echo -e "${GREEN}[SUCCESS]${NC} $1"
+}
+
+log_warning() {
+    echo -e "${YELLOW}[WARNING]${NC} $1"
+}
+
+log_error() {
+    echo -e "${RED}[ERROR]${NC} $1"
+}
+
+# Check if SQLite3 is installed
+check_sqlite() {
+    if ! command -v sqlite3 &> /dev/null; then
+        log_error "sqlite3 is not installed. Please install it first:"
+        echo "  Ubuntu/Debian: sudo apt-get install sqlite3"
+        echo "  CentOS/RHEL:   sudo yum install sqlite"
+        echo "  macOS:         brew install sqlite3"
+        exit 1
+    fi
+    
+    local version=$(sqlite3 --version | cut -d' ' -f1)
+    log_info "Using SQLite version: $version"
+}
+
+# Create database directory if it doesn't exist
+create_db_directory() {
+    if [ ! -d "$DB_DIR" ]; then
+        log_info "Creating database directory: $DB_DIR"
+        mkdir -p "$DB_DIR"
+    fi
+}
+
+# Backup existing database if it exists
+backup_existing_db() {
+    if [ -f "$DB_PATH" ]; then
+        local backup_path="${DB_PATH}.backup.$(date +%Y%m%d_%H%M%S)"
+        log_warning "Existing database found. Creating backup: $backup_path"
+        cp "$DB_PATH" "$backup_path"
+    fi
+}
+
+# Initialize the database with schema
+init_database() {
+    log_info "Initializing database: $DB_PATH"
+    
+    if [ ! -f "$SCHEMA_FILE" ]; then
+        log_error "Schema file not found: $SCHEMA_FILE"
+        exit 1
+    fi
+    
+    # Remove existing database if --force flag is used
+    if [ "$1" = "--force" ] && [ -f "$DB_PATH" ]; then
+        log_warning "Force flag detected. Removing existing database."
+        rm -f "$DB_PATH"
+    fi
+    
+    # Create the database and apply schema
+    log_info "Applying schema from: $SCHEMA_FILE"
+    if sqlite3 "$DB_PATH" < "$SCHEMA_FILE"; then
+        log_success "Database schema applied successfully"
+    else
+        log_error "Failed to apply database schema"
+        exit 1
+    fi
+}
+
+# Verify database integrity
+verify_database() {
+    log_info "Verifying database integrity..."
+    
+    # Check if database file exists and is not empty
+    if [ ! -s "$DB_PATH" ]; then
+        log_error "Database file is empty or doesn't exist"
+        exit 1
+    fi
+    
+    # Run SQLite integrity check
+    local integrity_result=$(sqlite3 "$DB_PATH" "PRAGMA integrity_check;")
+    if [ "$integrity_result" = "ok" ]; then
+        log_success "Database integrity check passed"
+    else
+        log_error "Database integrity check failed: $integrity_result"
+        exit 1
+    fi
+    
+    # Verify schema version
+    local schema_version=$(sqlite3 "$DB_PATH" "PRAGMA user_version;")
+    log_info "Database schema version: $schema_version"
+    
+    # Check that main tables exist
+    local table_count=$(sqlite3 "$DB_PATH" "SELECT count(*) FROM sqlite_master WHERE type='table' AND name IN ('event', 'tag');")
+    if [ "$table_count" -eq 2 ]; then
+        log_success "Core tables created successfully"
+    else
+        log_error "Missing core tables (expected 2, found $table_count)"
+        exit 1
+    fi
+}
+
+# Display database information
+show_db_info() {
+    log_info "Database Information:"
+    echo "  Location: $DB_PATH"
+    echo "  Size: $(du -h "$DB_PATH" | cut -f1)"
+    
+    log_info "Database Tables:"
+    sqlite3 "$DB_PATH" "SELECT name FROM sqlite_master WHERE type='table' ORDER BY name;" | sed 's/^/  - /'
+    
+    log_info "Database Indexes:"
+    sqlite3 "$DB_PATH" "SELECT name FROM sqlite_master WHERE type='index' AND name NOT LIKE 'sqlite_%' ORDER BY name;" | sed 's/^/  - /'
+    
+    log_info "Database Views:"
+    sqlite3 "$DB_PATH" "SELECT name FROM sqlite_master WHERE type='view' ORDER BY name;" | sed 's/^/  - /'
+}
+
+# Run database optimization
+optimize_database() {
+    log_info "Running database optimization..."
+    sqlite3 "$DB_PATH" "PRAGMA optimize; VACUUM; ANALYZE;"
+    log_success "Database optimization completed"
+}
+
+# Print usage information
+print_usage() {
+    echo "Usage: $0 [OPTIONS]"
+    echo ""
+    echo "Initialize SQLite database for C Nostr Relay"
+    echo ""
+    echo "Options:"
+    echo "  --force     Remove existing database before initialization"
+    echo "  --info      Show database information after initialization"
+    echo "  --optimize  Run database optimization after initialization"
+    echo "  --help      Show this help message"
+    echo ""
+    echo "Examples:"
+    echo "  $0                    # Initialize database (with backup if exists)"
+    echo "  $0 --force           # Force reinitialize database"
+    echo "  $0 --info --optimize # Initialize with info and optimization"
+}
+
+# Main execution
+main() {
+    local force_flag=false
+    local show_info=false
+    local optimize=false
+    
+    # Parse command line arguments
+    while [[ $# -gt 0 ]]; do
+        case $1 in
+            --force)
+                force_flag=true
+                shift
+                ;;
+            --info)
+                show_info=true
+                shift
+                ;;
+            --optimize)
+                optimize=true
+                shift
+                ;;
+            --help)
+                print_usage
+                exit 0
+                ;;
+            *)
+                log_error "Unknown option: $1"
+                print_usage
+                exit 1
+                ;;
+        esac
+    done
+    
+    log_info "Starting C Nostr Relay database initialization..."
+    
+    # Execute initialization steps
+    check_sqlite
+    create_db_directory
+    
+    if [ "$force_flag" = false ]; then
+        backup_existing_db
+    fi
+    
+    if [ "$force_flag" = true ]; then
+        init_database --force
+    else
+        init_database
+    fi
+    
+    verify_database
+    
+    if [ "$optimize" = true ]; then
+        optimize_database
+    fi
+    
+    if [ "$show_info" = true ]; then
+        show_db_info
+    fi
+    
+    log_success "Database initialization completed successfully!"
+    echo ""
+    echo "Database ready at: $DB_PATH"
+    echo "You can now start your C Nostr Relay application."
+}
+
+# Execute main function with all arguments
+main "$@"
--- a/db/schema.sql
+++ b/db/schema.sql
@@ -0,0 +1,66 @@
+-- C Nostr Relay Database Schema
+-- Simplified schema with just event and tag tables
+-- SQLite database for storing Nostr events
+
+-- ============================================================================
+-- DATABASE SETTINGS
+-- ============================================================================
+
+PRAGMA encoding = "UTF-8";
+PRAGMA journal_mode = WAL;
+PRAGMA auto_vacuum = FULL;
+PRAGMA synchronous = NORMAL;
+PRAGMA foreign_keys = ON;
+
+-- ============================================================================
+-- EVENT TABLE
+-- ============================================================================
+
+-- Main event table - stores all Nostr events
+CREATE TABLE IF NOT EXISTS event (
+    id TEXT PRIMARY KEY,                -- Nostr event ID (hex string)
+    pubkey TEXT NOT NULL,               -- Public key of event author (hex string)
+    created_at INTEGER NOT NULL,       -- Event creation timestamp (Unix timestamp)
+    kind INTEGER NOT NULL,              -- Event kind (0-65535)
+    content TEXT NOT NULL,              -- Event content (text content only)
+    sig TEXT NOT NULL                   -- Event signature (hex string)
+);
+
+-- Event indexes for performance
+CREATE INDEX IF NOT EXISTS event_pubkey_index ON event(pubkey);
+CREATE INDEX IF NOT EXISTS event_created_at_index ON event(created_at);
+CREATE INDEX IF NOT EXISTS event_kind_index ON event(kind);
+CREATE INDEX IF NOT EXISTS event_pubkey_created_at_index ON event(pubkey, created_at);
+CREATE INDEX IF NOT EXISTS event_kind_created_at_index ON event(kind, created_at);
+
+-- ============================================================================
+-- TAG TABLE
+-- ============================================================================
+
+-- Tag table for storing event tags
+CREATE TABLE IF NOT EXISTS tag (
+    id TEXT NOT NULL,                       -- Nostr event ID (references event.id)
+    name TEXT NOT NULL,                     -- Tag name (e.g., "e", "p", "d")
+    value TEXT NOT NULL,                    -- Tag value
+    parameters TEXT,                        -- Additional tag parameters (JSON string)
+    FOREIGN KEY(id) REFERENCES event(id) ON UPDATE CASCADE ON DELETE CASCADE
+);
+
+-- Tag indexes for performance
+CREATE INDEX IF NOT EXISTS tag_id_index ON tag(id);
+CREATE INDEX IF NOT EXISTS tag_name_index ON tag(name);
+CREATE INDEX IF NOT EXISTS tag_name_value_index ON tag(name, value);
+CREATE INDEX IF NOT EXISTS tag_id_name_index ON tag(id, name);
+
+-- ============================================================================
+-- PERFORMANCE OPTIMIZATIONS
+-- ============================================================================
+
+-- Enable query planner optimizations
+PRAGMA optimize;
+
+-- Set recommended pragmas for performance
+PRAGMA main.synchronous = NORMAL;
+PRAGMA foreign_keys = ON;
+PRAGMA temp_store = 2;              -- use memory for temp tables
+PRAGMA main.cache_size = 10000;     -- 40MB cache per connection