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90 lines
3.0 KiB
90 lines
3.0 KiB
(function () {
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function normalizeBase(base) {
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return String(base || '').replace(/\/+$/, '');
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}
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function normalizePath(path) {
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var value = String(path || '').trim();
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if (!value) {
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return '';
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}
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return value.charAt(0) === '/' ? value : '/' + value;
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}
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function resolveApiBase() {
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if (window.APP_CONFIG && window.APP_CONFIG.API_BASE) {
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return normalizeBase(window.APP_CONFIG.API_BASE);
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}
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var protocol = window.location.protocol === 'file:' ? 'http:' : window.location.protocol;
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var host = window.location.hostname || 'localhost';
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var port = (window.APP_CONFIG && window.APP_CONFIG.API_PORT) || '8080';
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var contextPath = normalizePath(window.APP_CONFIG && window.APP_CONFIG.API_CONTEXT_PATH);
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return normalizeBase(protocol + '//' + host + ':' + port + contextPath);
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}
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var API_BASE = resolveApiBase();
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function buildUrl(url) {
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if (/^https?:\/\//.test(url)) {
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return url;
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}
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return API_BASE + url;
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}
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function ajax(options) {
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var xhr = new XMLHttpRequest();
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xhr.open(options.method || 'GET', buildUrl(options.url), true);
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xhr.withCredentials = true;
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var isFormData = typeof FormData !== 'undefined' && options.data instanceof FormData;
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if (!isFormData) {
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xhr.setRequestHeader('Content-Type', 'application/json;charset=UTF-8');
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}
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xhr.onreadystatechange = function () {
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var response;
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if (xhr.readyState !== 4) {
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return;
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}
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try {
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response = xhr.responseText ? JSON.parse(xhr.responseText) : {};
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} catch (error) {
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response = { success: false, message: '响应数据解析失败' };
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}
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if (xhr.status >= 200 && xhr.status < 300) {
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options.success && options.success(response);
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return;
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}
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options.error && options.error(xhr, response);
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};
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xhr.onerror = function () {
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options.error && options.error(xhr, { success: false, message: '网络异常，请确认后端已启动' });
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};
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xhr.send(options.data ? (isFormData ? options.data : JSON.stringify(options.data)) : null);
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}
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function showMessage(element, message, isSuccess) {
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if (!element) {
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return;
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}
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element.textContent = message || '';
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element.className = 'form-message ' + (isSuccess ? 'success' : 'error');
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}
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function redirectIfLoggedIn() {
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ajax({
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method: 'GET',
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url: '/api/users/me',
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success: function (response) {
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if (response.success && response.data) {
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window.location.href = './app.html';
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}
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}
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});
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}
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window.appUtils = {
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ajax: ajax,
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showMessage: showMessage,
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redirectIfLoggedIn: redirectIfLoggedIn,
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apiBase: API_BASE
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};
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})();
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