thomaswilson-sveltekit/.netlify/handler.js
2022-04-16 11:50:44 +01:00

105 lines
2.4 KiB
JavaScript

'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
require('./shims.js');
var _0SERVER = require('./server/index.js');
require('node:http');
require('node:https');
require('node:zlib');
require('node:stream');
require('node:util');
require('node:url');
require('net');
/**
* Splits headers into two categories: single value and multi value
* @param {Headers} headers
* @returns {{
* headers: Record<string, string>,
* multiValueHeaders: Record<string, string[]>
* }}
*/
function split_headers(headers) {
/** @type {Record<string, string>} */
const h = {};
/** @type {Record<string, string[]>} */
const m = {};
headers.forEach((value, key) => {
if (key === 'set-cookie') {
// @ts-expect-error (headers.raw() is non-standard)
m[key] = headers.raw()[key];
} else {
h[key] = value;
}
});
return {
headers: h,
multiValueHeaders: m
};
}
/**
* @param {import('@sveltejs/kit').SSRManifest} manifest
* @returns {import('@netlify/functions').Handler}
*/
function init(manifest) {
const server = new _0SERVER.Server(manifest);
return async (event, context) => {
const rendered = await server.respond(to_request(event), {
platform: { context },
getClientAddress() {
return event.headers['x-nf-client-connection-ip'];
}
});
const partial_response = {
statusCode: rendered.status,
...split_headers(rendered.headers)
};
// TODO this is probably wrong now?
if (rendered.body instanceof Uint8Array) {
// Function responses should be strings (or undefined), and responses with binary
// content should be base64 encoded and set isBase64Encoded to true.
// https://github.com/netlify/functions/blob/main/src/function/response.ts
return {
...partial_response,
isBase64Encoded: true,
body: Buffer.from(rendered.body).toString('base64')
};
}
return {
...partial_response,
body: await rendered.text()
};
};
}
/**
* @param {import('@netlify/functions').HandlerEvent} event
* @returns {Request}
*/
function to_request(event) {
const { httpMethod, headers, rawUrl, body, isBase64Encoded } = event;
/** @type {RequestInit} */
const init = {
method: httpMethod,
headers: new Headers(headers)
};
if (httpMethod !== 'GET' && httpMethod !== 'HEAD') {
const encoding = isBase64Encoded ? 'base64' : 'utf-8';
init.body = typeof body === 'string' ? Buffer.from(body, encoding) : body;
}
return new Request(rawUrl, init);
}
exports.init = init;