livedash-node/docs/admin-audit-logs-api.md

# Admin Audit Logs API

This document describes the Admin Audit Logs API endpoints for retrieving and managing security audit logs in the LiveDash application.

## Overview

The Admin Audit Logs API provides secure access to security audit trails for administrative users. It includes comprehensive filtering, pagination, and retention management capabilities.

## Authentication & Authorization

- **Authentication**: NextAuth.js session required
- **Authorization**: ADMIN role required for all endpoints
- **Rate Limiting**: Integrated with existing auth rate limiting system
- **Audit Trail**: All API access is logged for security monitoring

## API Endpoints

### Get Audit Logs

Retrieve paginated audit logs with optional filtering.

```http
GET /api/admin/audit-logs
```

#### Query Parameters

| Parameter | Type | Description | Default | Example |
|-----------|------|-------------|---------|---------|
| `page` | number | Page number (1-based) | 1 | `?page=2` |
| `limit` | number | Records per page (max 100) | 50 | `?limit=25` |
| `eventType` | string | Filter by event type | - | `?eventType=login_attempt` |
| `outcome` | string | Filter by outcome | - | `?outcome=FAILURE` |
| `severity` | string | Filter by severity level | - | `?severity=HIGH` |
| `userId` | string | Filter by specific user ID | - | `?userId=user-123` |
| `startDate` | string | Filter from date (ISO 8601) | - | `?startDate=2024-01-01T00:00:00Z` |
| `endDate` | string | Filter to date (ISO 8601) | - | `?endDate=2024-01-02T00:00:00Z` |

#### Example Request

```javascript
const response = await fetch('/api/admin/audit-logs?' + new URLSearchParams({
  page: '1',
  limit: '25',
  eventType: 'login_attempt',
  outcome: 'FAILURE',
  startDate: '2024-01-01T00:00:00Z',
  endDate: '2024-01-02T00:00:00Z'
}));

const data = await response.json();
```

#### Response Format

```json
{
  "success": true,
  "data": {
    "auditLogs": [
      {
        "id": "log-123",
        "eventType": "login_attempt",
        "outcome": "FAILURE",
        "severity": "HIGH",
        "userId": "user-456",
        "companyId": "company-789",
        "ipAddress": "192.168.1.100",
        "userAgent": "Mozilla/5.0...",
        "timestamp": "2024-01-01T12:00:00Z",
        "description": "Failed login attempt",
        "metadata": {
          "error": "invalid_password",
          "endpoint": "/api/auth/signin"
        },
        "user": {
          "id": "user-456",
          "email": "user@example.com",
          "name": "John Doe",
          "role": "USER"
        },
        "platformUser": null
      }
    ],
    "pagination": {
      "page": 1,
      "limit": 25,
      "totalCount": 150,
      "totalPages": 6,
      "hasNext": true,
      "hasPrev": false
    }
  }
}
```

#### Error Responses

```json
// Unauthorized (401)
{
  "success": false,
  "error": "Unauthorized"
}

// Insufficient permissions (403)
{
  "success": false,
  "error": "Insufficient permissions"
}

// Server error (500)
{
  "success": false,
  "error": "Internal server error"
}
```

### Audit Log Retention Management

Manage audit log retention policies and cleanup.

```http
POST /api/admin/audit-logs/retention
```

#### Request Body

```json
{
  "action": "cleanup" | "configure" | "status",
  "retentionDays": 90,
  "dryRun": true
}
```

#### Parameters

| Parameter | Type | Required | Description |
|-----------|------|----------|-------------|
| `action` | string | Yes | Action to perform: `cleanup`, `configure`, or `status` |
| `retentionDays` | number | No | Retention period in days (for configure action) |
| `dryRun` | boolean | No | Preview changes without executing (for cleanup) |

#### Example Requests

**Check retention status:**
```javascript
const response = await fetch('/api/admin/audit-logs/retention', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({ action: 'status' })
});
```

**Configure retention policy:**
```javascript
const response = await fetch('/api/admin/audit-logs/retention', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    action: 'configure',
    retentionDays: 365
  })
});
```

**Cleanup old logs (dry run):**
```javascript
const response = await fetch('/api/admin/audit-logs/retention', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    action: 'cleanup',
    dryRun: true
  })
});
```

## Security Features

### Access Control
- **Role-based Access**: Only ADMIN users can access audit logs
- **Company Isolation**: Users only see logs for their company
- **Session Validation**: Active NextAuth session required

### Audit Trail
- **Access Logging**: All audit log access is recorded
- **Metadata Tracking**: Request parameters and results are logged
- **IP Tracking**: Client IP addresses are recorded for all requests

### Rate Limiting
- **Integrated Protection**: Uses existing authentication rate limiting
- **Abuse Prevention**: Protects against excessive API usage
- **Error Tracking**: Failed attempts are monitored

## Event Types

Common event types available for filtering:

| Event Type | Description |
|------------|-------------|
| `login_attempt` | User login attempts |
| `login_success` | Successful logins |
| `logout` | User logouts |
| `password_reset_request` | Password reset requests |
| `password_reset_complete` | Password reset completions |
| `user_creation` | New user registrations |
| `user_modification` | User profile changes |
| `admin_action` | Administrative actions |
| `data_export` | Data export activities |
| `security_violation` | Security policy violations |

## Outcome Types

| Outcome | Description |
|---------|-------------|
| `SUCCESS` | Operation completed successfully |
| `FAILURE` | Operation failed |
| `BLOCKED` | Operation was blocked by security policy |
| `WARNING` | Operation completed with warnings |
| `RATE_LIMITED` | Operation was rate limited |

## Severity Levels

| Severity | Description | Use Case |
|----------|-------------|----------|
| `LOW` | Informational events | Normal operations |
| `MEDIUM` | Notable events | Configuration changes |
| `HIGH` | Security events | Failed logins, violations |
| `CRITICAL` | Critical security events | Breaches, attacks |

## Usage Examples

### Daily Security Report

```javascript
async function getDailySecurityReport() {
  const yesterday = new Date();
  yesterday.setDate(yesterday.getDate() - 1);
  yesterday.setHours(0, 0, 0, 0);
  
  const today = new Date();
  today.setHours(0, 0, 0, 0);
  
  const response = await fetch('/api/admin/audit-logs?' + new URLSearchParams({
    startDate: yesterday.toISOString(),
    endDate: today.toISOString(),
    limit: '100'
  }));
  
  const data = await response.json();
  return data.data.auditLogs;
}
```

### Failed Login Analysis

```javascript
async function getFailedLogins(hours = 24) {
  const since = new Date();
  since.setHours(since.getHours() - hours);
  
  const response = await fetch('/api/admin/audit-logs?' + new URLSearchParams({
    eventType: 'login_attempt',
    outcome: 'FAILURE',
    startDate: since.toISOString(),
    limit: '100'
  }));
  
  const data = await response.json();
  return data.data.auditLogs;
}
```

### User Activity Tracking

```javascript
async function getUserActivity(userId, days = 7) {
  const since = new Date();
  since.setDate(since.getDate() - days);
  
  const response = await fetch('/api/admin/audit-logs?' + new URLSearchParams({
    userId: userId,
    startDate: since.toISOString(),
    limit: '50'
  }));
  
  const data = await response.json();
  return data.data.auditLogs;
}
```

## Performance Considerations

### Database Optimization
- **Indexed Queries**: All filter columns are properly indexed
- **Pagination**: Efficient offset-based pagination with limits
- **Time Range Filtering**: Optimized for date range queries

### Memory Usage
- **Limited Results**: Maximum 100 records per request
- **Streaming**: Large exports use streaming for memory efficiency
- **Connection Pooling**: Database connections are pooled

### Caching Considerations
- **No Caching**: Audit logs are never cached for security reasons
- **Fresh Data**: All queries hit the database for real-time results
- **Read Replicas**: Consider using read replicas for heavy reporting

## Error Handling

### Common Errors

```javascript
try {
  const response = await fetch('/api/admin/audit-logs');
  const data = await response.json();
  
  if (!data.success) {
    switch (response.status) {
      case 401:
        console.error('User not authenticated');
        break;
      case 403:
        console.error('User lacks admin permissions');
        break;
      case 500:
        console.error('Server error:', data.error);
        break;
    }
  }
} catch (error) {
  console.error('Network error:', error);
}
```

### Rate Limiting Handling

```javascript
async function fetchWithRetry(url, options = {}) {
  const response = await fetch(url, options);
  
  if (response.status === 429) {
    // Rate limited, wait and retry
    await new Promise(resolve => setTimeout(resolve, 5000));
    return fetchWithRetry(url, options);
  }
  
  return response;
}
```

## Monitoring and Alerting

### Key Metrics to Monitor
- **Request Volume**: Track API usage patterns
- **Error Rates**: Monitor authentication and authorization failures
- **Query Performance**: Track slow queries and optimize
- **Data Growth**: Monitor audit log size and plan retention

### Alert Conditions
- **High Error Rates**: >5% of requests failing
- **Unusual Access Patterns**: Off-hours access, high volume
- **Performance Degradation**: Query times >2 seconds
- **Security Events**: Multiple failed admin access attempts

## Best Practices

### Security
- Always validate user permissions before displaying UI
- Log all administrative access to audit logs
- Use HTTPS in production environments
- Implement proper error handling to avoid information leakage

### Performance
- Use appropriate page sizes (25-50 records typical)
- Implement client-side pagination for better UX
- Cache results only in memory, never persist
- Use date range filters to limit query scope

### User Experience
- Provide clear filtering options in the UI
- Show loading states for long-running queries
- Implement export functionality for reports
- Provide search and sort capabilities

## Related Documentation

- [Security Audit Logging](./security-audit-logging.md)
- [Security Monitoring](./security-monitoring.md)
- [CSRF Protection](./CSRF_PROTECTION.md)
- [Authentication System](../lib/auth.ts)