# Chelekom Phoenix Component Security Documentation

## Core Security Principles

Security in Phoenix components operates on a **multi-layered defense model**. The framework itself provides robust foundations built on decades of Erlang and Ruby experience, yet developers cannot rely solely on framework-level protections.

> "Security is like a fortress; it has multiple layers. These layers work together to not only prevent attacks but also minimize damage if an attack occurs."

## Input Validation & Sanitization

Comprehensive input handling is essential across all data pathways. A critical misconception exists that absent direct user input means no vulnerability risk. Reality suggests otherwise—multiple attack vectors can combine into severe flaws.

> "Input data received from users, especially data that is reflected as HTML, should always be validated and sanitized before use."

This becomes especially important when components display rich HTML content or accept editor-based input.

## Component Vulnerability Landscape

Chelekom components face identical security considerations as comparable UI libraries. All data flow requires careful management. Components using JavaScript must leverage secure, vetted libraries exclusively.

### Client-Server Attack Surface

Communication between client and server in Phoenix LiveView occurs via WebSocket protocols. Both endpoints require protection regardless of:

- Statefulness configurations
- LiveView JS module usage
- phx-hook implementations

## Rate Limiting & Request Control

Rate limiting represents developer responsibility in Phoenix. Developers should establish rules governing request frequency, such as:

- Pagination throttling to prevent database overload
- Action frequency limits (e.g., maximum "likes" per second)
- Page navigation boundaries

## Content Security Policy (CSP)

Components undergo testing for CSP header compatibility. Component-specific CSP requirements appear within individual documentation sections.

## Security Resources

Recommended external resources include:

- **EEF Security WG** - Erlang Ecosystem Foundation Security Working Group
- **Phoenix LiveView Security considerations** - Official documentation for enhanced project protection

## Vulnerability Reporting

Security issues should be reported to: `shahryar@mishka.tools`