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2bce1ea986
* ROOT_URL issues: some users did wrong to there app.ini config, then:
* The assets can not be loaded (AppSubUrl != "" and users try to access http://host:3000/)
*The ROOT_URL is wrong, then many URLs in Gitea are broken.
Now Gitea show enough information to users.
* JavaScript error issues, there are many users affected by JavaScript errors, some are caused by frontend bugs, some are caused by broken customized templates. If these JS errors can be found at first time, then maintainers do not need to ask about how bug occurs again and again.
* Some people like to modify the `head.tmpl`, so we separate the script part to `head_script.tmpl`, then it's much safer.
* use specialized CSS class "js-global-error", end users still have a chance to hide error messages by customized CSS styles.
41 lines
1.8 KiB
JavaScript
41 lines
1.8 KiB
JavaScript
import {joinPaths} from './utils.js';
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// DO NOT IMPORT window.config HERE!
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// to make sure the error handler always works, we should never import `window.config`, because some user's custom template breaks it.
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// This sets up the URL prefix used in webpack's chunk loading.
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// This file must be imported before any lazy-loading is being attempted.
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__webpack_public_path__ = joinPaths(window?.config?.assetUrlPrefix ?? '/', '/');
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export function showGlobalErrorMessage(msg) {
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const pageContent = document.querySelector('.page-content');
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if (!pageContent) return;
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const el = document.createElement('div');
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el.innerHTML = `<div class="ui container negative message center aligned js-global-error" style="white-space: pre-line;"></div>`;
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el.childNodes[0].textContent = msg;
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pageContent.prepend(el.childNodes[0]);
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}
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/**
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* @param {ErrorEvent} e
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*/
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function processWindowErrorEvent(e) {
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showGlobalErrorMessage(`JavaScript error: ${e.message} (${e.filename} @ ${e.lineno}:${e.colno}). Open browser console to see more details.`);
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}
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function initGlobalErrorHandler() {
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if (!window.config) {
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showGlobalErrorMessage(`Gitea JavaScript code couldn't run correctly, please check your custom templates`);
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}
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// we added an event handler for window error at the very beginning of <script> of page head
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// the handler calls `_globalHandlerErrors.push` (array method) to record all errors occur before this init
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// then in this init, we can collect all error events and show them
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for (const e of window._globalHandlerErrors || []) {
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processWindowErrorEvent(e);
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}
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// then, change _globalHandlerErrors to an object with push method, to process further error events directly
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window._globalHandlerErrors = {'push': (e) => processWindowErrorEvent(e)};
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}
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initGlobalErrorHandler();
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