mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-12-23 12:59:11 -05:00
1c8bc4081a
Close #24104 This also introduces many tests to cover many complex error handling functions. ### Before The details are never shown in production. <details>  </details> ### After The details could be shown to site admin users. It is safe. 
57 lines
2.8 KiB
JavaScript
57 lines
2.8 KiB
JavaScript
import {joinPaths} from './utils.js';
|
|
|
|
// DO NOT IMPORT window.config HERE!
|
|
// to make sure the error handler always works, we should never import `window.config`, because some user's custom template breaks it.
|
|
|
|
// This sets up the URL prefix used in webpack's chunk loading.
|
|
// This file must be imported before any lazy-loading is being attempted.
|
|
__webpack_public_path__ = joinPaths(window?.config?.assetUrlPrefix ?? '/', '/');
|
|
|
|
export function showGlobalErrorMessage(msg) {
|
|
const pageContent = document.querySelector('.page-content');
|
|
if (!pageContent) return;
|
|
const el = document.createElement('div');
|
|
el.innerHTML = `<div class="ui container negative message center aligned js-global-error" style="white-space: pre-line;"></div>`;
|
|
el.childNodes[0].textContent = msg;
|
|
pageContent.prepend(el.childNodes[0]);
|
|
}
|
|
|
|
/**
|
|
* @param {ErrorEvent} e
|
|
*/
|
|
function processWindowErrorEvent(e) {
|
|
if (window.config.initCount > 1) {
|
|
// the page content has been loaded many times, the HTML/JS are totally broken, don't need to show error message
|
|
return;
|
|
}
|
|
if (!e.error && e.lineno === 0 && e.colno === 0 && e.filename === '' && window.navigator.userAgent.includes('FxiOS/')) {
|
|
// At the moment, Firefox (iOS) (10x) has an engine bug. See https://github.com/go-gitea/gitea/issues/20240
|
|
// If a script inserts a newly created (and content changed) element into DOM, there will be a nonsense error event reporting: Script error: line 0, col 0.
|
|
return; // ignore such nonsense error event
|
|
}
|
|
|
|
showGlobalErrorMessage(`JavaScript error: ${e.message} (${e.filename} @ ${e.lineno}:${e.colno}). Open browser console to see more details.`);
|
|
}
|
|
|
|
function initGlobalErrorHandler() {
|
|
if (!window.config) {
|
|
showGlobalErrorMessage(`Gitea JavaScript code couldn't run correctly, please check your custom templates`);
|
|
}
|
|
if (window.config.initCount > 1) {
|
|
// when a sub-templates triggers an 500 error, its parent template has been partially rendered,
|
|
// then the 500 page will be rendered after that partially rendered page, which will cause the initCount > 1
|
|
// in this case, the page is totally broken, so do not do any further error handling
|
|
console.error('initGlobalErrorHandler: Gitea global config system has already been initialized, there must be something else wrong');
|
|
return;
|
|
}
|
|
// we added an event handler for window error at the very beginning of <script> of page head
|
|
// the handler calls `_globalHandlerErrors.push` (array method) to record all errors occur before this init
|
|
// then in this init, we can collect all error events and show them
|
|
for (const e of window._globalHandlerErrors || []) {
|
|
processWindowErrorEvent(e);
|
|
}
|
|
// then, change _globalHandlerErrors to an object with push method, to process further error events directly
|
|
window._globalHandlerErrors = {'push': (e) => processWindowErrorEvent(e)};
|
|
}
|
|
|
|
initGlobalErrorHandler();
|