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51 lines
1.4 KiB
JavaScript

"use strict";
const url = require("url");
const makeURL = require("make-url");
const parseMXC = require("@modular-matrix/parse-mxc");
const { validateOptions } = require("@validatem/core");
const required = require("@validatem/required");
const requireEither = require("../require-either");
const isInteger = require("@validatem/is-integer");
const oneOf = require("@validatem/one-of");
const isMXC = require("@modular-matrix/is-mxc-url");
const isSession = require("@modular-matrix/is-session");
const isHomeserverURL = require("@modular-matrix/is-homeserver-url");
module.exports = function getThumbnailURL(_session, _options) {
let options = validateOptions(arguments, [
required,
requireEither([ "session", "homeserver" ]),
{
session: [ isSession ],
homeserver: [ isHomeserverURL ],
url: [ required, isMXC ],
method: [ required, oneOf([ "crop", "scale" ]) ],
minimumWidth: [ required, isInteger ],
minimumHeight: [ required, isInteger ]
}
]);
let homeserverURL = (options.session != null)
? options.session.homeserver
: options.homeserver;
let parsedMXC = parseMXC.parse(options.url);
let path = makeURL("/_matrix/media/r0/thumbnail/:serverName/:mediaID", {
serverName: parsedMXC.homeserver,
mediaID: parsedMXC.id
});
return url.resolve(homeserverURL, url.format({
pathname: path,
query: {
method: options.method,
width: options.minimumWidth,
height: options.minimumHeight
}
}));
};