ethers.js/lib.esm/utils/geturl-browser.js
2023-10-09 20:27:56 -04:00

45 lines
1.7 KiB
JavaScript

import { assert } from "./errors.js";
// @TODO: timeout is completely ignored; start a Promise.any with a reject?
export function createGetUrl(options) {
async function getUrl(req, _signal) {
const protocol = req.url.split(":")[0].toLowerCase();
assert(protocol === "http" || protocol === "https", `unsupported protocol ${protocol}`, "UNSUPPORTED_OPERATION", {
info: { protocol },
operation: "request"
});
assert(protocol === "https" || !req.credentials || req.allowInsecureAuthentication, "insecure authorized connections unsupported", "UNSUPPORTED_OPERATION", {
operation: "request"
});
let signal = undefined;
if (_signal) {
const controller = new AbortController();
signal = controller.signal;
_signal.addListener(() => { controller.abort(); });
}
const init = {
method: req.method,
headers: new Headers(Array.from(req)),
body: req.body || undefined,
signal
};
const resp = await fetch(req.url, init);
const headers = {};
resp.headers.forEach((value, key) => {
headers[key.toLowerCase()] = value;
});
const respBody = await resp.arrayBuffer();
const body = (respBody == null) ? null : new Uint8Array(respBody);
return {
statusCode: resp.status,
statusMessage: resp.statusText,
headers, body
};
}
return getUrl;
}
// @TODO: remove in v7; provided for backwards compat
const defaultGetUrl = createGetUrl({});
export async function getUrl(req, _signal) {
return defaultGetUrl(req, _signal);
}
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