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gitea/web_src/js/features/common-fetch-action.ts

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import {request} from '../modules/fetch.ts';
import {showErrorToast} from '../modules/toast.ts';
import {submitEventSubmitter} from '../utils/dom.ts';
import {htmlEscape} from 'escape-goat';
import {confirmModal} from './comp/ConfirmModal.ts';
const {appSubUrl, i18n} = window.config;
// fetchActionDoRedirect does real redirection to bypass the browser's limitations of "location"
// more details are in the backend's fetch-redirect handler
function fetchActionDoRedirect(redirect) {
const form = document.createElement('form');
const input = document.createElement('input');
form.method = 'post';
form.action = `${appSubUrl}/-/fetch-redirect`;
input.type = 'hidden';
input.name = 'redirect';
input.value = redirect;
form.append(input);
document.body.append(form);
form.submit();
}
async function fetchActionDoRequest(actionElem, url, opt) {
try {
const resp = await request(url, opt);
if (resp.status === 200) {
let {redirect} = await resp.json();
redirect = redirect || actionElem.getAttribute('data-redirect');
actionElem.classList.remove('dirty'); // remove the areYouSure check before reloading
if (redirect) {
fetchActionDoRedirect(redirect);
} else {
window.location.reload();
}
return;
} else if (resp.status >= 400 && resp.status < 500) {
const data = await resp.json();
// the code was quite messy, sometimes the backend uses "err", sometimes it uses "error", and even "user_error"
// but at the moment, as a new approach, we only use "errorMessage" here, backend can use JSONError() to respond.
if (data.errorMessage) {
showErrorToast(data.errorMessage, {useHtmlBody: data.renderFormat === 'html'});
} else {
showErrorToast(`server error: ${resp.status}`);
}
} else {
showErrorToast(`server error: ${resp.status}`);
}
} catch (e) {
if (e.name !== 'AbortError') {
console.error('error when doRequest', e);
showErrorToast(`${i18n.network_error} ${e}`);
}
}
actionElem.classList.remove('is-loading', 'loading-icon-2px');
}
async function formFetchAction(e) {
if (!e.target.classList.contains('form-fetch-action')) return;
e.preventDefault();
const formEl = e.target;
if (formEl.classList.contains('is-loading')) return;
formEl.classList.add('is-loading');
if (formEl.clientHeight < 50) {
formEl.classList.add('loading-icon-2px');
}
const formMethod = formEl.getAttribute('method') || 'get';
const formActionUrl = formEl.getAttribute('action');
const formData = new FormData(formEl);
const formSubmitter = submitEventSubmitter(e);
const [submitterName, submitterValue] = [formSubmitter?.getAttribute('name'), formSubmitter?.getAttribute('value')];
if (submitterName) {
formData.append(submitterName, submitterValue || '');
}
let reqUrl = formActionUrl;
const reqOpt = {method: formMethod.toUpperCase()};
if (formMethod.toLowerCase() === 'get') {
const params = new URLSearchParams();
for (const [key, value] of formData) {
params.append(key, value.toString());
}
const pos = reqUrl.indexOf('?');
if (pos !== -1) {
reqUrl = reqUrl.slice(0, pos);
}
reqUrl += `?${params.toString()}`;
} else {
reqOpt.body = formData;
}
await fetchActionDoRequest(formEl, reqUrl, reqOpt);
}
async function linkAction(e) {
// A "link-action" can post AJAX request to its "data-url"
// Then the browser is redirected to: the "redirect" in response, or "data-redirect" attribute, or current URL by reloading.
// If the "link-action" has "data-modal-confirm" attribute, a confirm modal dialog will be shown before taking action.
const el = e.target.closest('.link-action');
if (!el) return;
e.preventDefault();
const url = el.getAttribute('data-url');
const doRequest = async () => {
el.disabled = true;
await fetchActionDoRequest(el, url, {method: 'POST'});
el.disabled = false;
};
const modalConfirmContent = htmlEscape(el.getAttribute('data-modal-confirm') || '');
if (!modalConfirmContent) {
await doRequest();
return;
}
const isRisky = el.classList.contains('red') || el.classList.contains('negative');
if (await confirmModal(modalConfirmContent, {confirmButtonColor: isRisky ? 'red' : 'primary'})) {
await doRequest();
}
}
export function initGlobalFetchAction() {
document.addEventListener('submit', formFetchAction);
document.addEventListener('click', linkAction);
}