@fedify/fedify
Version:
An ActivityPub server framework
97 lines (96 loc) • 3.46 kB
JavaScript
import "@js-temporal/polyfill";
import "urlpattern-polyfill";
globalThis.addEventListener = () => {};
//#region src/federation/negotiation.ts
/*!
* Adapted directly from negotiator at https://github.com/jshttp/negotiator/
* which is licensed as follows:
*
* (The MIT License)
*
* Copyright (c) 2012-2014 Federico Romero
* Copyright (c) 2012-2014 Isaac Z. Schlueter
* Copyright (c) 2014-2015 Douglas Christopher Wilson
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* 'Software'), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
function compareSpecs(a, b) {
return b.q - a.q || (b.s ?? 0) - (a.s ?? 0) || (a.o ?? 0) - (b.o ?? 0) || a.i - b.i || 0;
}
function isQuality(spec) {
return spec.q > 0;
}
const simpleMediaTypeRegExp = /^\s*([^\s\/;]+)\/([^;\s]+)\s*(?:;(.*))?$/;
function splitKeyValuePair(str) {
const [key, value] = str.split("=");
return [key.toLowerCase(), value];
}
function parseMediaType(str, i) {
const match = simpleMediaTypeRegExp.exec(str);
if (!match) return;
const [, type, subtype, parameters] = match;
if (!type || !subtype) return;
const params = Object.create(null);
let q = 1;
if (parameters) {
const kvps = parameters.split(";").map((p) => p.trim()).map(splitKeyValuePair);
for (const [key, val] of kvps) {
const value = val && val[0] === `"` && val[val.length - 1] === `"` ? val.slice(1, val.length - 1) : val;
if (key === "q" && value) {
q = parseFloat(value);
break;
}
params[key] = value;
}
}
return {
type,
subtype,
params,
i,
o: void 0,
q,
s: void 0
};
}
function parseAccept(accept) {
const accepts = accept.split(",").map((p) => p.trim());
const mediaTypes = [];
for (const [index, accept] of accepts.entries()) {
const mediaType = parseMediaType(accept.trim(), index);
if (mediaType) mediaTypes.push(mediaType);
}
return mediaTypes;
}
function getFullType(spec) {
return `${spec.type}/${spec.subtype}`;
}
function preferredMediaTypes(accept) {
return parseAccept(accept === void 0 ? "*/*" : accept ?? "").filter(isQuality).sort(compareSpecs).map(getFullType);
}
function acceptsJsonLd(request) {
const accept = request.headers.get("Accept");
const types = accept ? preferredMediaTypes(accept) : ["*/*"];
if (types == null) return true;
if (types[0] === "text/html" || types[0] === "application/xhtml+xml") return false;
return types.includes("application/activity+json") || types.includes("application/ld+json") || types.includes("application/json");
}
//#endregion
export { acceptsJsonLd as t };