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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 | 1x 1x 1x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 1x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 6x 1x 1x 1x 5x 5x 5x 5x 5x 5x 5x 5x 5x 5x 5x 5x 1x | import "@kitajs/html"; import { renderToStream } from "@kitajs/html/suspense"; import type express from "express"; import type { FlashMessage } from "./flash-message"; import type { JSONSerializable } from "./handler"; export interface PlainResponse { _tag: "PlainResponse"; headers?: Record<string, string>; status?: number; body?: string | Promise<string>; htmlStream?: (rid: number | string) => JSX.Element; } export function isPlainResponse(r: unknown): r is PlainResponse { return (r as PlainResponse)._tag === "PlainResponse"; } export async function sendPlainResponse( res: express.Response, plainResponse: PlainResponse, ) { if (res.headersSent) { console.warn("Headers already sent, cannot send response"); return; } if (plainResponse.headers) { for (const [key, value] of Object.entries(plainResponse.headers)) { res.setHeader(key, value); } } if (plainResponse.status) { res.status(plainResponse.status); } // body if (plainResponse.body) { res.send(await plainResponse.body); } else if (plainResponse.htmlStream) { const htmlStream = renderToStream(plainResponse.htmlStream); htmlStream.pipe(res); htmlStream.on("end", () => { res.end(); }); htmlStream.on("error", (err) => { console.error("Error streaming response", err); }); } else { console.error("No body or htmlStream provided"); res.end(); } } /** Return a HTML response with Content-Type set to text/html. */ export function html( html: Promise<string> | string, opts?: { status?: number }, ): PlainResponse { return { _tag: "PlainResponse", headers: { "Content-Type": "text/html; charset=utf-8", }, body: html, status: opts?.status, }; } /** * Stream a HTML response with Content-Type set to text/html. * Cache-Control is set to no-transform to prevent caching. */ export function stream( htmlStream: (rid: number | string) => JSX.Element, ): PlainResponse { return { _tag: "PlainResponse", headers: { "Content-Type": "text/html; charset=utf-8", "Cache-Control": "no-transform", }, htmlStream, }; } /** * Redirect to a new path. * The status code defaults to 302. */ export function redirect( path: string, opts?: { message?: FlashMessage; status?: number }, ): PlainResponse { // TODO store flash message return { _tag: "PlainResponse", status: opts?.status ?? 302, headers: { Location: path, }, }; } /** Return a JSON response with Content-Type set to application/json. */ export function json( json: JSONSerializable, opts?: { status?: number }, ): PlainResponse { return { _tag: "PlainResponse", headers: { "Content-Type": "application/json", }, body: JSON.stringify(json), status: opts?.status, }; } /** Return a 404 response. */ export function notFound(): PlainResponse { return { _tag: "PlainResponse", status: 404, body: "Not Found", }; } |