You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
39 lines
1.3 KiB
39 lines
1.3 KiB
import {ResponseFactory} from './ResponseFactory'
|
|
import {Request} from '../lifecycle/Request'
|
|
import {ErrorWithContext, UniversalPath} from '../../util'
|
|
import {Logging} from '../../service/Logging'
|
|
|
|
/**
|
|
* Helper function that creates a FileResponseFactory for the given path.
|
|
* @param path
|
|
*/
|
|
export function file(path: UniversalPath): FileResponseFactory {
|
|
return new FileResponseFactory(path)
|
|
}
|
|
|
|
/**
|
|
* HTTP response factory that sends a file referenced by a given UniversalPath.
|
|
*/
|
|
export class FileResponseFactory extends ResponseFactory {
|
|
constructor(
|
|
/** The file to be sent. */
|
|
public readonly path: UniversalPath,
|
|
) {
|
|
super()
|
|
}
|
|
|
|
public async write(request: Request): Promise<Request> {
|
|
if ( !(await this.path.isFile()) ) {
|
|
throw new ErrorWithContext(`Cannot write non-file resource as response: ${this.path}`, {
|
|
path: this.path,
|
|
})
|
|
}
|
|
|
|
request.make<Logging>(Logging).debug(`Setting Content-Type of ${this.path} to ${this.path.contentType}...`)
|
|
request.response.setHeader('Content-Type', this.path.contentType || 'application/octet-stream')
|
|
request.response.setHeader('Content-Length', String(await this.path.sizeInBytes()))
|
|
request.response.body = await this.path.readStream()
|
|
return request
|
|
}
|
|
}
|