element-web/src/vector/mobile_guide/index.ts

115 lines
4.1 KiB
TypeScript

import { logger } from "matrix-js-sdk/src/logger";
import { getVectorConfig } from '../getconfig';
function onBackToElementClick(): void {
// Cookie should expire in 4 hours
document.cookie = 'element_mobile_redirect_to_guide=false;path=/;max-age=14400';
window.location.href = '../';
}
// NEVER pass user-controlled content to this function! Hardcoded strings only please.
function renderConfigError(message: string): void {
const contactMsg = "If this is unexpected, please contact your system administrator " +
"or technical support representative.";
message = `<h2>Error loading Element</h2><p>${message}</p><p>${contactMsg}</p>`;
const toHide = document.getElementsByClassName("mx_HomePage_container");
const errorContainers = document.getElementsByClassName(
"mx_HomePage_errorContainer",
) as HTMLCollectionOf<HTMLDivElement>;
for (const e of toHide) {
// We have to clear the content because .style.display='none'; doesn't work
// due to an !important in the CSS.
e.innerHTML = '';
}
for (const e of errorContainers) {
e.style.display = 'block';
e.innerHTML = message;
}
}
async function initPage(): Promise<void> {
document.getElementById('back_to_element_button').onclick = onBackToElementClick;
const config = await getVectorConfig('..');
// We manually parse the config similar to how validateServerConfig works because
// calling that function pulls in roughly 4mb of JS we don't use.
const wkConfig = config['default_server_config']; // overwritten later under some conditions
const serverName = config['default_server_name'];
const defaultHsUrl = config['default_hs_url'];
const defaultIsUrl = config['default_is_url'];
const incompatibleOptions = [wkConfig, serverName, defaultHsUrl].filter(i => !!i);
if (incompatibleOptions.length > 1) {
return renderConfigError(
"Invalid configuration: can only specify one of default_server_config, default_server_name, " +
"or default_hs_url.",
);
}
if (incompatibleOptions.length < 1) {
return renderConfigError("Invalid configuration: no default server specified.");
}
let hsUrl = '';
let isUrl = '';
if (wkConfig && wkConfig['m.homeserver']) {
hsUrl = wkConfig['m.homeserver']['base_url'];
if (wkConfig['m.identity_server']) {
isUrl = wkConfig['m.identity_server']['base_url'];
}
}
if (serverName) {
// We also do our own minimal .well-known validation to avoid pulling in the js-sdk
try {
const result = await fetch(`https://${serverName}/.well-known/matrix/client`);
const wkConfig = await result.json();
if (wkConfig && wkConfig['m.homeserver']) {
hsUrl = wkConfig['m.homeserver']['base_url'];
if (wkConfig['m.identity_server']) {
isUrl = wkConfig['m.identity_server']['base_url'];
}
}
} catch (e) {
logger.error(e);
return renderConfigError("Unable to fetch homeserver configuration");
}
}
if (defaultHsUrl) {
hsUrl = defaultHsUrl;
isUrl = defaultIsUrl;
}
if (!hsUrl) {
return renderConfigError("Unable to locate homeserver");
}
if (hsUrl && !hsUrl.endsWith('/')) hsUrl += '/';
if (isUrl && !isUrl.endsWith('/')) isUrl += '/';
if (hsUrl !== 'https://matrix.org/') {
(document.getElementById('configure_element_button') as HTMLAnchorElement).href =
"https://mobile.element.io?hs_url=" + encodeURIComponent(hsUrl) +
"&is_url=" + encodeURIComponent(isUrl);
document.getElementById('step1_heading').innerHTML= '1: Install the app';
document.getElementById('step2_container').style.display = 'block';
document.getElementById('hs_url').innerText = hsUrl;
if (isUrl) {
document.getElementById('custom_is').style.display = 'block';
document.getElementById('is_url').style.display = 'block';
document.getElementById('is_url').innerText = isUrl;
}
}
}
initPage();