# Wiki Redirection Implementation

## Overview

This document explains the implementation of the redirection from `/wiki` routes to `https://qualiwiki.cipherbliss.com/wiki`.

## Implementation Details

The redirection is implemented using a Symfony Event Subscriber that intercepts all requests to paths starting with `/wiki` before they reach the routing system.

### Files Created

- `src/EventSubscriber/WikiRedirectSubscriber.php`: Event subscriber that handles the redirection

### How It Works

1. The `WikiRedirectSubscriber` subscribes to the `kernel.request` event with a high priority (256)
2. When a request is received, the subscriber checks if the path starts with `/wiki`
3. If it does, it extracts the part after `/wiki` and constructs a redirect URL by appending this part to `https://qualiwiki.cipherbliss.com/wiki`
4. It creates a 301 (permanent) redirect response and sets it on the event
5. This short-circuits the request handling process, preventing the request from reaching the routing system

### Example Redirects

- `/wiki` → `https://qualiwiki.cipherbliss.com/wiki`
- `/wiki/` → `https://qualiwiki.cipherbliss.com/wiki`
- `/wiki/page1` → `https://qualiwiki.cipherbliss.com/wiki/page1`
- `/wiki/page1/subpage` → `https://qualiwiki.cipherbliss.com/wiki/page1/subpage`

### Technical Considerations

- The subscriber uses a high priority (256) to ensure it runs before the router processes the request
- It only processes main requests, not sub-requests
- It uses a 301 (permanent) redirect status code, which is appropriate for this type of redirection
- The implementation follows Symfony best practices for event subscribers
- The subscriber is automatically registered thanks to Symfony's auto-configuration feature

## Testing

To test the redirection:

1. Access any path starting with `/wiki` in the application
2. Verify that you are redirected to the corresponding path on `https://qualiwiki.cipherbliss.com/wiki`
3. Check that the redirect is a 301 (permanent) redirect

## Maintenance

If the target URL needs to be changed in the future, update the `REDIRECT_BASE_URL` constant in the `WikiRedirectSubscriber` class.