This document outlines security best practices and policies for using the n8n-nodes-appwrite-full package.

If you discover a security vulnerability in this project, please report it by:

1. DO NOT open a public GitHub issue
2. Email the maintainer at: timiliris@example.com
3. Include a detailed description of the vulnerability
4. Provide steps to reproduce (if applicable)
5. Suggest a fix (if you have one)

We aim to respond to security reports within 48 hours.

• Store API keys securely in n8n credentials manager
• Use API keys with minimum required scopes
• Rotate API keys regularly (recommended: every 90 days)
• Create separate API keys for different environments (dev, staging, production)
• Revoke API keys immediately when:
  • Team members leave
  • Keys are suspected to be compromised
  • Projects are decommissioned

• Hard-code API keys in workflows
• Share API keys via email, chat, or version control
• Use production API keys in development environments
• Grant more permissions than necessary
• Reuse API keys across multiple projects

Configure API keys with minimum required scopes:

Important: Only grant the scopes your workflows actually need.

This package includes built-in validation for:

• ID validation: Alphanumeric, underscore, hyphen only (max 36 chars)
• JSON parsing: Safe parsing with size limits (max 1MB)
• Email validation: RFC-compliant email format
• Name validation: Maximum 128 characters

For sensitive data, add additional validation in your workflows:

// Example: Validate user input before creating document
if (!email.includes('@')) {
  throw new Error('Invalid email format');
}

if (password.length < 12) {
  throw new Error('Password must be at least 12 characters');
}

When creating documents or files, always specify explicit permissions:

{
  "permissions": [
    "read(\"user:USER_ID\")",
    "write(\"user:USER_ID\")"
  ]
}

// DON'T: Allows anyone to read/write
{
  "permissions": [
    "read(\"any\")",
    "write(\"any\")"
  ]
}

// DO: Restrict to specific roles
{
  "permissions": [
    "read(\"role:members\")",
    "write(\"role:admins\")"
  ]
}

When working with file uploads:

1. Validate file types: Use bucket allowedFileExtensions
2. Limit file size: Set maximumFileSize on buckets
3. Enable antivirus: Set antivirus: true on buckets (Appwrite Cloud)
4. Enable encryption: Set encryption: true for sensitive files

Example secure bucket configuration:

{
  "bucketId": "secure-files",
  "name": "Secure Files",
  "permissions": ["read(\"role:members\")"],
  "fileSecurity": true,
  "enabled": true,
  "options": {
    "maximumFileSize": 5242880, // 5MB
    "allowedFileExtensions": ["pdf", "jpg", "png"],
    "encryption": true,
    "antivirus": true
  }
}

When creating users:

1. Never log passwords: Ensure workflows don't log sensitive data
2. Use strong passwords: Enforce minimum 12 characters with complexity
3. Don't send passwords in plain text: Use secure password reset flows
4. Hash on server: Appwrite handles hashing - never pre-hash passwords

Use different Appwrite projects for different environments:

Configure credentials separately for each environment in n8n.

Be aware of Appwrite rate limits:

• Appwrite Cloud: Varies by plan
• Self-hosted: Configurable

Implement retry logic with exponential backoff:

// Example: Retry with backoff
let retries = 3;
while (retries > 0) {
  try {
    await createDocument(...);
    break;
  } catch (error) {
    if (error.code === 429) { // Rate limit
      await sleep(Math.pow(2, 3 - retries) * 1000);
      retries--;
    } else {
      throw error;
    }
  }
}

Enable audit logging in Appwrite to track:

• Document creations/modifications/deletions
• User management actions
• Permission changes
• File uploads/downloads

Review logs regularly for suspicious activity.

• Use HTTPS only (enforce TLS 1.2+)
• Configure firewall rules
• Use VPN for administrative access
• Implement IP whitelisting for API access
• Enable CORS appropriately

• Verify endpoint is https://cloud.appwrite.io/v1
• Never connect over HTTP
• Use webhook signatures for webhooks

This package validates inputs, but always sanitize data in workflows:

// Example: Sanitize HTML content
const sanitized = htmlContent
  .replace(/<script[^>]*>.*?<\/script>/gi, '')
  .replace(/<iframe[^>]*>.*?<\/iframe>/gi, '');

The package provides structured error handling. In workflows:

1. Don't expose sensitive errors to users: Log detailed errors internally
2. Use generic messages: "An error occurred" instead of exposing stack traces
3. Enable continueOnFail: For non-critical operations

This package is scanned for vulnerabilities. To check:

npm audit

Update dependencies regularly:

npm update n8n-nodes-appwrite-full

The package enforces the following limits:

• JSON payload: 1 MB maximum
• ID length: 36 characters maximum
• Name length: 128 characters maximum

These limits prevent:

• Memory exhaustion attacks
• Buffer overflow attempts
• Denial of service via large payloads

When using this package for applications subject to:

• GDPR: Ensure proper consent, implement data deletion, use encryption
• HIPAA: Use encryption, audit logs, access controls, BAA with Appwrite
• PCI-DSS: Never store credit card data in Appwrite, use compliant payment processor
• SOC 2: Enable logging, implement access controls, regular security reviews

Before deploying workflows to production:

• API keys use minimum required scopes
• Credentials stored securely in n8n
• Permissions configured with least privilege
• File upload validation enabled
• Error handling doesn't expose sensitive info
• Audit logging enabled in Appwrite
• HTTPS enforced for all connections
• Rate limiting considered
• Input validation implemented
• Dependencies up to date
• Security policies documented for team

• Appwrite Security Documentation
• n8n Security Best Practices
• OWASP Top 10
• Appwrite Permissions Guide

This security policy is reviewed quarterly and updated as needed.

Last Updated: 2024-11-14 Version: 1.0.0