76 lines
2.8 KiB
JavaScript
76 lines
2.8 KiB
JavaScript
/*
|
|
* Vencord, a modification for Discord's desktop app
|
|
* Copyright (c) 2022 Vendicated and contributors
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
function parseHeaders(headers) {
|
|
if (!headers)
|
|
return {};
|
|
const result = {};
|
|
const headersArr = headers.trim().split("\n");
|
|
for (var i = 0; i < headersArr.length; i++) {
|
|
var row = headersArr[i];
|
|
var index = row.indexOf(":")
|
|
, key = row.slice(0, index).trim().toLowerCase()
|
|
, value = row.slice(index + 1).trim();
|
|
|
|
if (result[key] === undefined) {
|
|
result[key] = value;
|
|
} else if (Array.isArray(result[key])) {
|
|
result[key].push(value);
|
|
} else {
|
|
result[key] = [result[key], value];
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
function blobTo(to, blob) {
|
|
if (to === "arrayBuffer" && blob.arrayBuffer) return blob.arrayBuffer();
|
|
return new Promise((resolve, reject) => {
|
|
var fileReader = new FileReader();
|
|
fileReader.onload = event => resolve(event.target.result);
|
|
if (to === "arrayBuffer") fileReader.readAsArrayBuffer(blob);
|
|
else if (to === "text") fileReader.readAsText(blob, "utf-8");
|
|
else reject("unknown to");
|
|
});
|
|
}
|
|
|
|
function GM_fetch(url, opt) {
|
|
return new Promise((resolve, reject) => {
|
|
// https://www.tampermonkey.net/documentation.php?ext=dhdg#GM_xmlhttpRequest
|
|
const options = opt || {};
|
|
options.url = url;
|
|
options.data = options.body;
|
|
options.responseType = "blob";
|
|
options.onload = resp => {
|
|
var blob = resp.response;
|
|
resp.blob = () => Promise.resolve(blob);
|
|
resp.arrayBuffer = () => blobTo("arrayBuffer", blob);
|
|
resp.text = () => blobTo("text", blob);
|
|
resp.json = async () => JSON.parse(await blobTo("text", blob));
|
|
resp.headers = new Headers(parseHeaders(resp.responseHeaders));
|
|
resp.ok = resp.status >= 200 && resp.status < 300;
|
|
resolve(resp);
|
|
};
|
|
options.ontimeout = () => reject("fetch timeout");
|
|
options.onerror = () => reject("fetch error");
|
|
options.onabort = () => reject("fetch abort");
|
|
GM_xmlhttpRequest(options);
|
|
});
|
|
}
|
|
export const fetch = GM_fetch;
|