parent
48f5da1747
commit
a04f083dbb
@ -1,5 +1,13 @@
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import Controller from "../../../lib/src/http/Controller.ts";
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import Controller from '../../../lib/src/http/Controller.ts'
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export default class TestController extends Controller {
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export default class TestController extends Controller {
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get_home(req: any) {
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req.response.body = 'Hello!'
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}
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get_user_home(req: any) {
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throw new Error('Hello, world!')
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}
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create_user_home(req: any) {}
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}
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}
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@ -0,0 +1,53 @@
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import Module from '../Module.ts'
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import {Injectable} from '../../../../../di/src/decorator/Injection.ts'
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import Kernel from '../Kernel.ts'
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import {Logging} from '../../../service/logging/Logging.ts'
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import {Request} from '../../Request.ts'
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import ResponseFactory from '../../response/ResponseFactory.ts'
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import ErrorResponseFactory from "../../response/ErrorResponseFactory.ts";
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@Injectable()
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export default class ApplyRouteHandlers extends Module {
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public static register(kernel: Kernel) {
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kernel.register(this).core()
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}
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constructor(
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protected readonly logger: Logging,
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) {
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super()
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}
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public async apply(request: Request): Promise<Request> {
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if (
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!request.route
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|| !request.route.handlers
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|| request.route.handlers.length < 1
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) {
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return request
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}
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let current_request: Request = request
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for ( const handler of request.route.handlers ) {
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try {
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const result = await handler(current_request)
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if ( result instanceof Request ) {
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// If we got a request instance back, use that for further handlers
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current_request = result
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} else if ( result instanceof ResponseFactory ) {
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// If we got a response factory back, write the response and move along
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return await result.write(current_request)
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}
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} catch (e) {
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this.logger.error('Error encountered while applying request handlers!')
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this.logger.error(e)
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// TODO determine response type (html | json, &c.)
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const error_response: ErrorResponseFactory = this.make(ErrorResponseFactory, e)
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return await error_response.write(request)
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}
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}
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return current_request
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}
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}
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@ -0,0 +1,50 @@
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import ResponseFactory from "./ResponseFactory.ts";
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import {Request} from "../Request.ts";
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export default class ErrorResponseFactory extends ResponseFactory {
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constructor(
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public readonly error: Error,
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public readonly output: 'json' | 'html' = 'html',
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public readonly status: number = 500,
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) {
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super()
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}
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public async write(request: Request): Promise<Request> {
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request.response.status = this.status
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if ( this.output === 'json' ) {
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request.response.headers.set('Content-Type', 'application/json')
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request.response.body = this.build_json(this.error)
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} else if ( this.output === 'html' ) {
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request.response.headers.set('Content-Type', 'text/html')
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request.response.body = this.build_html(this.error)
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}
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return request
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}
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protected build_html(error: Error) {
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return `
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<b>Sorry, an unexpected error occurred while processing your request.</b>
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<br>
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<pre><code>
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Name: ${error.name}
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Message: ${error.message}
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Stack trace:
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- ${error.stack ? error.stack.split(/\s+at\s+/).slice(1).join('<br> - ') : 'none'}
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</code></pre>
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`
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}
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protected build_json(error: Error) {
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return JSON.stringify({
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success: false,
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error: {
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name: error.name,
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message: error.message,
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stack: error.stack ? error.stack.split(/\s+at\s+/).slice(1) : []
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}
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})
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}
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}
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