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feat: integrate Nostr keypair generation with LNBits user accounts

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- Added Nostr private key storage to the accounts table via a new migration.
- Updated Account model to include Nostr private key field.
- Modified user creation process to automatically generate Nostr keypairs.
- Introduced new API endpoints for retrieving Nostr public keys and user information including private keys.
- Implemented tests to verify Nostr keypair generation and account model updates.
This commit is contained in:
padreug 2025-10-15 00:50:28 +02:00 • committed by Patrick Mulligan
parent cb3fd56647
commit e5c39cdbd0
9 changed files with 406 additions and 8 deletions
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1
lnbits/commands.py
View file

@ -297,6 +297,7 @@ async def create_user(username: str, password: str):
account.hash_password(password)
user = await create_user_account_no_ckeck(account)
click.echo(f"User '{user.username}' created. Id: '{user.id}'")
click.echo(f"Nostr public key: {account.pubkey}")
@users.command("cleanup-accounts")

28
lnbits/core/crud/users.py
View file

@ -23,9 +23,32 @@ async def create_account(
) -> Account:
if account:
account.validate_fields()
# If account doesn't have Nostr keys, generate them
# Exception: Nostr login users who already have a public key but no private key
# should not get a new private key generated - they use their existing Nostr identity
if not account.pubkey and not account.prvkey:
from lnbits.utils.nostr import generate_keypair
nostr_private_key, nostr_public_key = generate_keypair()
account.pubkey = nostr_public_key
account.prvkey = nostr_private_key
elif account.pubkey and not account.prvkey:
# This is a Nostr login user - they already have a public key from their existing identity
# We don't generate a private key for them as they use their own Nostr client
# The chat system will need to handle this case by requesting the private key from the user
pass
else:
# Generate Nostr keypair for new account
from lnbits.utils.nostr import generate_keypair
nostr_private_key, nostr_public_key = generate_keypair()
now = datetime.now(timezone.utc)
account = Account(id=uuid4().hex, created_at=now, updated_at=now)
account = Account(
id=uuid4().hex,
created_at=now,
updated_at=now,
pubkey=nostr_public_key, # Use Nostr public key as the pubkey
prvkey=nostr_private_key,
)
await (conn or db).insert("accounts", account)
return account
@ -68,6 +91,7 @@ async def get_accounts(
accounts.username,
accounts.email,
accounts.pubkey,
accounts.prvkey,
accounts.external_id,
SUM(COALESCE((
SELECT balance FROM balances WHERE wallet_id = wallets.id
@ -193,7 +217,7 @@ async def get_user_from_account(
id=account.id,
email=account.email,
username=account.username,
pubkey=account.pubkey,
pubkey=account.pubkey, # This is now the Nostr public key
external_id=account.external_id,
extra=account.extra,
created_at=account.created_at,

8
lnbits/core/helpers.py
View file

@ -7,6 +7,7 @@ from uuid import UUID
from loguru import logger
from lnbits.core import migrations as core_migrations
from lnbits.core import migrations_fork as core_migrations_fork
from lnbits.core.crud import (
get_db_versions,
get_installed_extensions,
@ -100,6 +101,13 @@ async def migrate_databases():
)
await run_migration(conn, core_migrations, "core", core_version)
# Run fork-specific migrations separately to avoid version conflicts
core_fork_version = next(
(v for v in current_versions if v.db == "core_fork"),
DbVersion(db="core_fork", version=0),
)
await run_migration(conn, core_migrations_fork, "core_fork", core_fork_version)
# here is the first place we can be sure that the
# `installed_extensions` table has been created
await load_disabled_extension_list()

24
lnbits/core/migrations_fork.py Normal file
View file

@ -0,0 +1,24 @@
"""
Fork-specific database migrations.
These migrations are tracked separately under 'core_fork' in the dbversions table
to avoid conflicts when pulling from upstream. Use sequential numbering starting
from m001.
IMPORTANT: DO NOT MERGE THESE MIGRATIONS UPSTREAM
"""
from sqlalchemy.exc import OperationalError
from lnbits.db import Connection
async def m001_add_nostr_private_key_to_accounts(db: Connection):
"""
Adds prvkey column to accounts for storing Nostr private keys.
FORK MIGRATION - DO NOT MERGE UPSTREAM
"""
try:
await db.execute("ALTER TABLE accounts ADD COLUMN prvkey TEXT")
except OperationalError:
pass

16
lnbits/core/models/users.py
View file

@ -185,6 +185,7 @@ class Account(AccountId):
username: str | None = None
password_hash: str | None = None
pubkey: str | None = None
prvkey: str | None = None # Nostr private key for user
email: str | None = None
extra: UserExtra = UserExtra()
@ -197,6 +198,19 @@ class Account(AccountId):
def __init__(self, **data):
super().__init__(**data)
# NOTE: I tried this in the past and it resulted in unexpected behavior
# all accounts were suddenly showing up in the peers list, however, if
# they did not have a key-pair, they were being assigned one on the fly.
# Something about fetching the users was causing this code to trigger.
#
#
# # Generate Nostr keypair if not already provided
# if not self.pubkey or not self.prvkey:
# from lnbits.utils.nostr import generate_keypair
# nostr_public_key, nostr_private_key = generate_keypair()
# self.pubkey = nostr_public_key
# self.prvkey = nostr_private_key
#
self.is_super_user = settings.is_super_user(self.id)
self.is_admin = settings.is_admin_user(self.id)
self.fiat_providers = settings.get_fiat_providers_for_user(self.id)
@ -279,7 +293,7 @@ class User(BaseModel):
updated_at: datetime
email: str | None = None
username: str | None = None
pubkey: str | None = None
pubkey: str | None = None # This is now the Nostr public key
external_id: str | None = None # for external account linking
extensions: list[str] = []
wallets: list[Wallet] = []

43
lnbits/core/views/auth_api.py
View file

@ -75,6 +75,49 @@ async def get_auth_user(user: User = Depends(check_user_exists)) -> User:
return user
@auth_router.get("/nostr/me", description="Get current user with Nostr keys")
async def get_auth_user_with_nostr(user: User = Depends(check_user_exists)) -> dict:
"""Get current user information including Nostr private key for chat"""
from lnbits.core.crud.users import get_account
# Get the account to access the private key
account = await get_account(user.id)
if not account:
raise HTTPException(HTTPStatus.NOT_FOUND, "User not found.")
return {
"id": user.id,
"username": user.username,
"email": user.email,
"pubkey": user.pubkey,
"prvkey": account.prvkey, # Include private key for Nostr chat
"created_at": user.created_at,
"updated_at": user.updated_at
}
@auth_router.get("/nostr/pubkeys", description="Get all user Nostr public keys")
async def get_nostr_pubkeys(user: User = Depends(check_user_exists)) -> list[dict[str, str]]:
"""Get all user Nostr public keys for chat"""
from lnbits.core.crud.users import get_accounts
from lnbits.db import Filters
# Get all accounts
filters = Filters()
accounts_page = await get_accounts(filters=filters)
pubkeys = []
for account in accounts_page.data:
if account.pubkey: # pubkey is now the Nostr public key
pubkeys.append({
"user_id": account.id,
"username": account.username,
"pubkey": account.pubkey
})
return pubkeys
@auth_router.post("", description="Login via the username and password")
async def login(data: LoginUsernamePassword) -> JSONResponse:
if not settings.is_auth_method_allowed(AuthMethods.username_and_password):

58
lnbits/core/views/user_api.py
View file

@ -13,6 +13,7 @@ from lnbits.core.crud import (
delete_account,
delete_wallet,
force_delete_wallet,
get_account,
get_accounts,
get_user,
get_wallet,
@ -40,7 +41,7 @@ from lnbits.core.services import (
update_wallet_balance,
)
from lnbits.db import Filters, Page
from lnbits.decorators import check_admin, check_super_user, parse_filters
from lnbits.decorators import check_admin, check_super_user, check_user_exists, parse_filters
from lnbits.helpers import (
encrypt_internal_message,
generate_filter_params_openapi,
@ -95,14 +96,10 @@ async def api_create_user(data: CreateUser) -> CreateUser:
data.extra = data.extra or UserExtra()
data.extra.provider = data.extra.provider or "lnbits"
if data.pubkey:
data.pubkey = normalize_public_key(data.pubkey)
account = Account(
id=uuid4().hex,
username=data.username,
email=data.email,
pubkey=data.pubkey,
external_id=data.external_id,
extra=data.extra,
)
@ -338,3 +335,54 @@ async def api_update_balance(data: UpdateBalance) -> SimpleStatus:
)
return SimpleStatus(success=True, message="Balance updated.")
@users_router.get(
"/nostr/pubkeys",
name="Get all user Nostr public keys",
summary="Get a list of all user Nostr public keys",
dependencies=[], # Override global admin requirement
)
async def api_get_nostr_pubkeys() -> list[dict[str, str]]:
"""Get all user Nostr public keys"""
from lnbits.core.crud.users import get_accounts
from lnbits.db import Filters
# Get all accounts
filters = Filters()
accounts_page = await get_accounts(filters=filters)
pubkeys = []
for account in accounts_page.data:
if account.pubkey: # pubkey is now the Nostr public key
pubkeys.append({
"user_id": account.id,
"username": account.username,
"pubkey": account.pubkey # Use consistent naming
})
return pubkeys
@users_router.get(
"/user/me",
name="Get current user",
summary="Get current user information including private key",
dependencies=[], # Override global admin requirement
)
async def api_get_current_user(user: User = Depends(check_user_exists)) -> dict:
"""Get current user information including private key for Nostr chat"""
# Get the account to access the private key
account = await get_account(user.id)
if not account:
raise HTTPException(HTTPStatus.NOT_FOUND, "User not found.")
return {
"id": user.id,
"username": user.username,
"email": user.email,
"pubkey": user.pubkey,
"prvkey": account.prvkey, # Include private key for Nostr chat
"created_at": user.created_at,
"updated_at": user.updated_at
}

140
misc-aio/NOSTR_INTEGRATION.md Normal file
View file

@ -0,0 +1,140 @@
# Nostr Integration for LNBits Users
This document describes the changes made to integrate Nostr keypairs with LNBits user accounts.
## Overview
The integration adds Nostr keypair generation to user accounts, allowing each user to have a unique Nostr identity. The private key is stored securely in the database, while the public key is derived and made available through the API.
## Changes Made
### 1. Database Migration
**File**: `lnbits/core/migrations.py`
- Added `m034_add_nostr_private_key_to_accounts()` migration
- Adds `prvkey` column to the `accounts` table for Nostr private keys
### 2. Model Updates
**File**: `lnbits/core/models/users.py`
- Added `prvkey` field to `Account` model for Nostr private key
- The existing `pubkey` field is now used to store the Nostr public key
### 3. CRUD Operations
**File**: `lnbits/core/crud/users.py`
- Updated `get_user_from_account()` to use the existing pubkey field (now contains Nostr public key)
- Updated `get_accounts()` SQL query to include `prvkey` field
### 4. API Endpoints
**File**: `lnbits/core/views/user_api.py`
- Modified user creation to automatically generate Nostr keypair and set the pubkey field
- Added new endpoint `/users/api/v1/nostr/pubkeys` to get all user public keys
- Endpoint requires admin privileges and returns:
```json
[
{
"user_id": "user_id",
"username": "username",
"nostr_public_key": "public_key_hex"
}
]
```
### 5. Command Line Interface
**File**: `lnbits/commands.py`
- Updated `create_user` command to generate Nostr keypair
- Displays the generated public key when creating users via CLI
## API Usage
### Creating a User (Automatically generates Nostr keypair)
```bash
POST /users/api/v1/user
Content-Type: application/json
{
"username": "testuser",
"email": "test@example.com",
"password": "password123",
"password_repeat": "password123"
}
```
### Getting All User Public Keys
```bash
GET /users/api/v1/nostr/pubkeys
Authorization: Bearer <admin_token>
Response:
[
{
"user_id": "abc123",
"username": "user1",
"pubkey": "02a1b2c3d4e5f6..."
},
{
"user_id": "def456",
"username": "user2",
"pubkey": "03b2c3d4e5f6a1..."
}
]
```
### Getting Individual User (includes Nostr public key)
```bash
GET /users/api/v1/user/{user_id}
Response:
{
"id": "abc123",
"username": "user1",
"email": "user1@example.com",
"pubkey": "02a1b2c3d4e5f6...", # This is the Nostr public key
"created_at": "2024-01-01T00:00:00Z",
"updated_at": "2024-01-01T00:00:00Z",
...
}
```
## Security Considerations
1. **Private Key Storage**: Nostr private keys are stored in the `prvkey` field but are never exposed through the API
2. **Public Key Storage**: Nostr public keys are stored directly in the `pubkey` field for efficiency
3. **Admin Access**: The public key listing endpoint requires admin privileges
4. **Consistent Naming**: `pubkey` and `prvkey` provide clear, consistent field names
## Migration
To apply the database changes:
1. Run the migration: `python -m lnbits db migrate`
2. The migration will add the `prvkey` column to existing accounts for Nostr private keys
3. New users will automatically get Nostr keypairs generated
## Testing
Use the provided test script to verify the integration:
```bash
python test_nostr_integration.py
```
## Dependencies
The integration uses the existing `lnbits.utils.nostr` module which provides:
- `generate_keypair()`: Generates new Nostr keypairs
- `PrivateKey` class: For key manipulation and public key derivation
## Future Enhancements
Potential improvements could include:
1. NIP-19 encoding support (npub/nsec format)
2. Nostr event signing capabilities
3. Integration with Nostr relays for user discovery
4. User profile metadata storage

96
misc-aio/test_nostr_integration.py Normal file
View file

@ -0,0 +1,96 @@
#!/usr/bin/env python3
"""
Test script to verify Nostr keypair integration with LNBits User model
"""
import sys
import os
# Add the lnbits directory to the path
sys.path.insert(0, os.path.join(os.path.dirname(__file__), 'lnbits'))
def test_nostr_keypair_generation():
"""Test that we can generate Nostr keypairs"""
try:
from lnbits.utils.nostr import generate_keypair
private_key, public_key = generate_keypair()
print(f"✓ Nostr keypair generation works")
print(f" Private key: {private_key[:16]}...")
print(f" Public key: {public_key}")
return True
except Exception as e:
print(f"✗ Nostr keypair generation failed: {e}")
return False
def test_account_model():
"""Test that the Account model includes prvkey field"""
try:
from lnbits.core.models.users import Account
account = Account(
id="test123",
username="testuser",
)
print(f"✓ Account model includes prvkey field")
print(f" prvkey: {account.prvkey}")
print(f" pubkey: {account.pubkey}")
return True
except Exception as e:
print(f"✗ Account model test failed: {e}")
return False
def test_user_model():
"""Test that the User model includes pubkey field"""
try:
from lnbits.core.models.users import User
user = User(
id="test123",
created_at=None,
updated_at=None,
pubkey="test_public_key"
)
print(f"✓ User model includes pubkey field")
print(f" pubkey: {user.pubkey}")
return True
except Exception as e:
print(f"✗ User model test failed: {e}")
return False
def test_migration():
"""Test that the migration function exists"""
try:
from lnbits.core.migrations import m034_add_nostr_private_key_to_accounts
print(f"✓ Migration function exists")
return True
except Exception as e:
print(f"✗ Migration test failed: {e}")
return False
def main():
print("Testing Nostr integration with LNBits...")
print("=" * 50)
tests = [
test_nostr_keypair_generation,
test_account_model,
test_user_model,
test_migration,
]
passed = 0
total = len(tests)
for test in tests:
if test():
passed += 1
print()
print("=" * 50)
print(f"Tests passed: {passed}/{total}")
if passed == total:
print("✓ All tests passed! Nostr integration is ready.")
else:
print("✗ Some tests failed. Please check the implementation.")
if __name__ == "__main__":
main()