ethers.js/lib.esm/utils/geturl-browser.js

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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