daton/lib/src/http/kernel/module/SetDatonHeaders.ts

import Module from '../Module.ts'
import Kernel from '../Kernel.ts'
import {Request} from '../../Request.ts'
import {Injectable} from '../../../../../di/src/decorator/Injection.ts'
import Config from '../../../unit/Config.ts'

/**
 * Apply the default Daton headers to the outgoing response.
 * @extends Module
 */
@Injectable()
export default class SetDatonHeaders extends Module {
    public static register(kernel: Kernel) {
        kernel.register(this).after()
    }

    constructor(
        protected readonly config: Config,
    ) {
        super()
    }

    /**
     * Apply the outgoing response headers.
     * @param request
     */
    public async apply(request: Request): Promise<Request> {
        const text = this.config.get('server.powered_by.text', 'Daton')
        request.response.headers.set('X-Powered-By', text)
        return request
    }
}