laoyang
cede838b5e
- 前台：问题列表 / 详情 / 发布与回复（趣味问答验证码、蜜罐、IP 限流） - 后台：先审后显、站点设置（站点标题/描述、附件存储、OSS 参数）、操作日志 - 附件：关闭 / 本机硬盘 / 阿里云 OSS 浏览器直传（ECS 实例 RAM 角色）三种模式 - 品牌资源：全套图标（favicon.ico / SVG / PNG 各尺寸 / manifest） - 安全：CSRF、session 加固、.htaccess 屏蔽敏感文件、口令仅存哈希 - 配置：config.example.php 为模板，config.php 不入库
628 lines
23 KiB
JavaScript
628 lines
23 KiB
JavaScript
/* FeedLite · 轻反馈 —— 轻量交互（含图片/视频直传 OSS） */
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(function () {
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'use strict';
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/* ---------- 公共小工具 ---------- */
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function $(sel, root) { return (root || document).querySelector(sel); }
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function $$(sel, root) {
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var out = [], list = (root || document).querySelectorAll(sel);
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for (var i = 0; i < list.length; i++) { out.push(list[i]); }
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return out;
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}
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function qs(obj) {
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var parts = [];
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for (var k in obj) {
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if (obj.hasOwnProperty(k) && obj[k] !== undefined && obj[k] !== null) {
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parts.push(encodeURIComponent(k) + '=' + encodeURIComponent(obj[k]));
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}
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}
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return parts.join('&');
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}
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function human(bytes) {
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var b = Number(bytes) || 0;
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if (b < 1024) { return b + ' B'; }
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if (b < 1048576) { return (b / 1024).toFixed(1) + ' KB'; }
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return (b / 1048576).toFixed(1) + ' MB';
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}
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function extByMime(mime) {
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if (mime === 'image/webp') { return 'webp'; }
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if (mime === 'image/png') { return 'png'; }
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if (mime === 'image/gif') { return 'gif'; }
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if (mime === 'video/mp4') { return 'mp4'; }
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if (mime === 'video/quicktime') { return 'mov'; }
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if (mime === 'video/webm') { return 'webm'; }
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return 'jpg';
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}
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function renameExt(name, mime) {
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var base = String(name || 'file').replace(/\.[A-Za-z0-9]{1,8}$/, '') || 'file';
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return base + '.' + extByMime(mime);
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}
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/* ---------- 换一题：AJAX 刷新验证题，不丢失已填内容 ---------- */
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function bindCaptchaRefresh() {
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var links = document.querySelectorAll('[data-captcha-refresh]');
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for (var i = 0; i < links.length; i++) {
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links[i].addEventListener('click', function (e) {
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e.preventDefault();
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var box = this.closest('.captcha-line');
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var qEl = box ? box.querySelector('.c-q') : null;
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var input = box ? box.querySelector('input[name=captcha]') : null;
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var self = this;
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self.style.opacity = '.5';
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fetch('captcha.php', { credentials: 'same-origin' })
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.then(function (r) { return r.json(); })
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.then(function (d) {
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if (d && d.ok && qEl) { qEl.textContent = d.q; }
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if (input) { input.value = ''; input.focus(); }
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})
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.catch(function () { window.location.href = 'captcha.php'; })
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.then(function () { self.style.opacity = '1'; });
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});
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}
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}
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/* ---------- 管理员口令：填写后显示"处理状态"，并解除邮箱必填 ---------- */
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function bindAdminToggle() {
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var pw = document.querySelector('input[name=admin_password]');
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if (!pw) { return; }
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var statusBox = document.querySelector('.admin-status');
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var emailInput = document.querySelector('input[name=email]');
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var emailField = document.getElementById('emailField');
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function sync() {
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var isAdmin = pw.value.trim() !== '';
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if (statusBox) { statusBox.hidden = !isAdmin; }
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if (emailInput) {
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emailInput.required = !isAdmin;
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if (isAdmin) { emailInput.removeAttribute('required'); }
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}
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if (emailField) {
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var req = emailField.querySelector('.req');
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if (req) { req.style.visibility = isAdmin ? 'hidden' : 'visible'; }
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}
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}
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pw.addEventListener('input', sync);
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sync();
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}
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/* ---------- 防止重复提交（上传未完成时阻止提交） ---------- */
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function bindNoDoubleSubmit() {
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var forms = document.querySelectorAll('form');
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for (var i = 0; i < forms.length; i++) {
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forms[i].addEventListener('submit', function (ev) {
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var box = this.querySelector('[data-uploader-root]');
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if (box && Number(box.getAttribute('data-pending') || 0) > 0) {
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ev.preventDefault();
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alert('还有文件正在上传，请等待上传完成后再提交。');
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return;
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}
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var btn = this.querySelector('button[type=submit]');
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if (btn) {
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setTimeout(function () { btn.disabled = true; btn.style.opacity = '.6'; }, 0);
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setTimeout(function () { btn.disabled = false; btn.style.opacity = '1'; }, 5000);
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}
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});
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}
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}
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/* ---------- 图片压缩（canvas，保留动图） ---------- */
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function prepareImage(file, maxSide) {
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return new Promise(function (resolve) {
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// GIF 可能带动画，压缩会丢失动画 —— 原样上传
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if (file.type === 'image/gif') {
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resolve({ blob: file, mime: file.type, name: file.name });
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return;
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}
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var url = URL.createObjectURL(file);
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var img = new Image();
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img.onload = function () {
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var w = img.naturalWidth, h = img.naturalHeight;
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var scale = Math.min(1, maxSide / Math.max(w, h));
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var tw = Math.max(1, Math.round(w * scale));
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var th = Math.max(1, Math.round(h * scale));
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var small = file.size <= 600 * 1024;
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if (small && scale >= 1) {
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URL.revokeObjectURL(url);
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resolve({ blob: file, mime: file.type, name: file.name });
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return;
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}
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var cv = document.createElement('canvas');
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cv.width = tw; cv.height = th;
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cv.getContext('2d').drawImage(img, 0, 0, tw, th);
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var prefer = (file.type === 'image/png' || file.type === 'image/webp') ? 'image/webp' : 'image/jpeg';
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var quality = 0.82;
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function done(blob, mime) {
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URL.revokeObjectURL(url);
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if (!blob || (blob.size >= file.size && small)) {
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resolve({ blob: file, mime: file.type, name: file.name });
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return;
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}
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var real = blob.type || mime;
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resolve({ blob: blob, mime: real, name: renameExt(file.name, real) });
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}
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cv.toBlob(function (blob) {
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if (blob && blob.type !== prefer) {
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cv.toBlob(function (b2) { done(b2, 'image/jpeg'); }, 'image/jpeg', quality);
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} else {
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done(blob, prefer);
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}
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}, prefer, quality);
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};
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img.onerror = function () {
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URL.revokeObjectURL(url);
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resolve({ blob: file, mime: file.type, name: file.name });
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};
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img.src = url;
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});
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}
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/* ---------- 附件直传 ---------- */
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function initUploaderRoot(root) {
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var csrf = root.getAttribute('data-csrf') || '';
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var signUrl = root.getAttribute('data-sign-url') || 'upload.php';
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var field = root.querySelector('.att-field');
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var state = []; // 已成功的附件描述
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var pending = 0;
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try {
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var init = JSON.parse(root.getAttribute('data-init') || '[]');
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for (var i = 0; i < init.length; i++) { state.push(init[i]); }
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} catch (e) { /* 忽略 */ }
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function setPending(n) {
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pending = Math.max(0, pending + n);
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root.setAttribute('data-pending', String(pending));
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}
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function sync() {
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if (!field) { return; }
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var out = [];
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for (var i = 0; i < state.length; i++) {
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var s = state[i];
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out.push({ kind: s.kind, key: s.key, size: s.size, name: s.name || '', mime: s.mime || '', w: s.w || 0, h: s.h || 0 });
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}
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field.value = out.length ? JSON.stringify(out) : '';
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}
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function countOf(kind) {
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var n = 0;
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for (var i = 0; i < state.length; i++) { if (state[i].kind === kind) { n++; } }
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return n;
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}
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function makeNode(box, meta) {
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var list = box.querySelector('.up-list');
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var el = document.createElement('div');
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el.className = 'up-item' + (meta.kind === 'video' ? ' video' : '');
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var thumb = document.createElement('div');
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thumb.className = 'up-thumb';
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if (meta.kind === 'image') {
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var im = document.createElement('img');
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im.alt = '';
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if (meta.thumb) { im.src = meta.thumb; }
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thumb.appendChild(im);
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} else {
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thumb.classList.add('up-thumb-video');
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thumb.textContent = 'VIDEO';
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}
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var info = document.createElement('div');
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info.className = 'up-info';
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var nm = document.createElement('div');
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nm.className = 'up-name';
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nm.textContent = meta.name || (meta.kind === 'image' ? '图片' : '视频');
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var st = document.createElement('div');
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st.className = 'up-state';
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st.textContent = '等待上传…';
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var bar = document.createElement('div');
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bar.className = 'up-bar';
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var fill = document.createElement('i');
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bar.appendChild(fill);
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info.appendChild(nm); info.appendChild(st); info.appendChild(bar);
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var rm = document.createElement('button');
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rm.type = 'button';
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rm.className = 'up-del';
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rm.textContent = '移除';
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el.appendChild(thumb); el.appendChild(info); el.appendChild(rm);
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list.appendChild(el);
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return { el: el, fill: fill, st: st, rm: rm, thumb: thumb };
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}
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function removeItem(node, item) {
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if (node && node.el && node.el.parentNode) { node.el.parentNode.removeChild(node.el); }
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if (item) {
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for (var i = 0; i < state.length; i++) {
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if (state[i].key === item.key) { state.splice(i, 1); break; }
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}
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}
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sync();
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}
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function sign(kind, ext, size, mime) {
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return fetch(signUrl, {
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method: 'POST',
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credentials: 'same-origin',
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headers: { 'Content-Type': 'application/x-www-form-urlencoded;charset=UTF-8' },
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body: qs({ csrf: csrf, kind: kind, ext: ext, size: size, mime: mime })
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}).then(function (r) {
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return r.json().catch(function () { throw new Error('服务器返回异常（' + r.status + '）'); });
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}).then(function (d) {
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if (!d || !d.ok) { throw new Error((d && d.error) || '获取上传凭证失败'); }
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return d;
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});
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}
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function upload(cred, fields, blob, filename, onProgress) {
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return new Promise(function (resolve, reject) {
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var fd = new FormData();
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for (var k in fields) {
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if (fields.hasOwnProperty(k)) { fd.append(k, fields[k]); }
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}
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fd.append('file', blob, filename); // 文件必须是最后一个字段
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var xhr = new XMLHttpRequest();
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xhr.open('POST', cred.host, true);
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xhr.upload.onprogress = function (e) {
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if (e.lengthComputable && onProgress) { onProgress(e.loaded / e.total); }
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};
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xhr.onload = function () {
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if (xhr.status === 200 || xhr.status === 204) { resolve(true); }
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else {
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var msg = String(xhr.responseText || '').replace(/<[^>]*>/g, ' ').slice(0, 160).trim();
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reject(new Error('上传到存储失败（' + xhr.status + '）' + (msg ? '：' + msg : '')));
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}
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};
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xhr.onerror = function () { reject(new Error('网络异常，上传中断')); };
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xhr.send(fd);
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});
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}
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async function handleFiles(box, files) {
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var kind = box.getAttribute('data-kind') || 'image';
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var maxCount = parseInt(box.getAttribute('data-max-count') || '1', 10);
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var maxBytes = parseInt(box.getAttribute('data-max-bytes') || '0', 10);
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var maxSide = parseInt(box.getAttribute('data-max-side') || '1600', 10);
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var label = box.getAttribute('data-label') || '附件';
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var allowed = (box.getAttribute('data-accept') || '').split(',');
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for (var i = 0; i < files.length; i++) {
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var file = files[i];
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if (allowed.length && allowed.indexOf(file.type) < 0) {
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alert('「' + file.name + '」格式不支持，请选择：' + allowed.join(' / '));
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continue;
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}
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if (maxBytes > 0 && file.size > maxBytes) {
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alert('「' + file.name + '」超过 ' + human(maxBytes) + ' 上限。');
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continue;
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}
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if (countOf(kind) >= maxCount) {
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alert(label + '最多上传 ' + maxCount + ' 个，请先移除已上传的文件。');
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break;
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}
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var node = makeNode(box, { kind: kind, name: file.name, thumb: '' });
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setPending(1);
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node.rm.disabled = true;
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try {
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node.st.textContent = '处理中…';
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var prepared;
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if (kind === 'image') {
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prepared = await prepareImage(file, maxSide);
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if (prepared.blob !== file && prepared.blob.size > 0) {
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node.st.textContent = '已压缩 ' + human(file.size) + ' → ' + human(prepared.blob.size);
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try { node.thumb.querySelector('img').src = URL.createObjectURL(prepared.blob); } catch (e2) { /* 忽略 */ }
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}
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} else {
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prepared = { blob: file, mime: file.type, name: file.name };
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}
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var ext = extByMime(prepared.mime);
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var d = await sign(kind, ext, prepared.blob.size, prepared.mime);
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node.st.textContent = '上传中…';
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await upload(d.credential, d.fields, prepared.blob, prepared.name, function (p) {
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node.fill.style.width = Math.round(p * 100) + '%';
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node.st.textContent = '上传中 ' + Math.round(p * 100) + '%';
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});
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var item = {
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kind: kind,
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key: d.credential.key,
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size: prepared.blob.size,
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name: prepared.name,
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mime: prepared.mime,
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w: 0, h: 0,
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thumb: d.credential.url || ''
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};
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state.push(item);
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sync();
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node.el.classList.add('done');
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node.fill.style.width = '100%';
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node.st.textContent = '已上传 · ' + human(item.size);
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if (kind === 'image' && item.thumb) {
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var imgEl = node.thumb.querySelector('img');
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if (imgEl) { imgEl.src = item.thumb; }
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}
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node.rm.disabled = false;
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node.rm.addEventListener('click', function (it) {
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return function () { removeItem(node, it); };
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}(item));
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} catch (e) {
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node.el.classList.add('fail');
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node.st.textContent = (e && e.message) ? e.message : '上传失败';
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node.rm.textContent = '删除';
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node.rm.disabled = false;
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node.rm.addEventListener('click', function () { removeItem(node, null); });
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} finally {
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setPending(-1);
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}
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}
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}
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// 回填服务端已保存的附件（校验失败后重新提交时）
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var byKind = {};
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for (var s = 0; s < state.length; s++) {
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var it0 = state[s];
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var box0 = root.querySelector('[data-uploader][data-kind="' + it0.kind + '"]');
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if (!box0) { continue; }
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byKind[it0.kind] = (byKind[it0.kind] || 0) + 1;
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var nd = makeNode(box0, it0);
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nd.el.classList.add('done');
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nd.fill.style.width = '100%';
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nd.st.textContent = '已上传 · ' + human(it0.size);
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nd.rm.addEventListener('click', function (item, node) {
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return function () { removeItem(node, item); };
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}(it0, nd));
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}
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sync();
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var boxes = $$('[data-uploader]', root);
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for (var b = 0; b < boxes.length; b++) {
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(function (box) {
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var pick = box.querySelector('.up-pick');
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var input = box.querySelector('.up-file');
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if (!pick || !input) { return; }
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pick.addEventListener('click', function () { input.click(); });
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input.addEventListener('change', function () {
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var files = [];
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for (var k = 0; k < input.files.length; k++) { files.push(input.files[k]); }
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input.value = '';
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if (files.length) { handleFiles(box, files); }
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});
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// 拖拽上传
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['dragenter', 'dragover'].forEach(function (ev) {
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box.addEventListener(ev, function (e) { e.preventDefault(); box.classList.add('dragging'); });
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});
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['dragleave', 'drop'].forEach(function (ev) {
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box.addEventListener(ev, function (e) { e.preventDefault(); box.classList.remove('dragging'); });
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});
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box.addEventListener('drop', function (e) {
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e.preventDefault();
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var files = [];
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if (e.dataTransfer && e.dataTransfer.files) {
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for (var k = 0; k < e.dataTransfer.files.length; k++) { files.push(e.dataTransfer.files[k]); }
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}
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if (files.length) { handleFiles(box, files); }
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});
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}(boxes[b]));
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}
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}
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function bindUploaders() {
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var roots = $$('[data-uploader-root]');
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for (var i = 0; i < roots.length; i++) { initUploaderRoot(roots[i]); }
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}
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/* ---------- 附件灯箱：点击放大 + 左右切换 ---------- */
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function bindLightbox() {
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var galleries = $$('[data-gallery]');
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if (!galleries.length) { return; }
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||
var ov = null, items = [], cur = 0, lastFocus = null, built = false;
|
||
var media = null, nameEl = null, metaEl = null, origEl = null, prevBtn = null, nextBtn = null;
|
||
|
||
function buildOverlay() {
|
||
ov = document.createElement('div');
|
||
ov.className = 'lb';
|
||
ov.hidden = true;
|
||
ov.setAttribute('role', 'dialog');
|
||
ov.setAttribute('aria-modal', 'true');
|
||
ov.setAttribute('aria-label', '附件查看');
|
||
ov.innerHTML =
|
||
'<button type="button" class="lb-x" aria-label="关闭">✕</button>' +
|
||
'<div class="lb-stage">' +
|
||
'<button type="button" class="lb-nav lb-prev" aria-label="上一个">‹</button>' +
|
||
'<div class="lb-media"></div>' +
|
||
'<button type="button" class="lb-nav lb-next" aria-label="下一个">›</button>' +
|
||
'</div>' +
|
||
'<div class="lb-bar">' +
|
||
'<span class="lb-name"></span>' +
|
||
'<span class="lb-meta"></span>' +
|
||
'<a class="lb-orig" href="#" target="_blank" rel="noopener noreferrer">查看原图</a>' +
|
||
'</div>';
|
||
document.body.appendChild(ov);
|
||
|
||
media = $('.lb-media', ov);
|
||
nameEl = $('.lb-name', ov);
|
||
metaEl = $('.lb-meta', ov);
|
||
origEl = $('.lb-orig', ov);
|
||
prevBtn = $('.lb-prev', ov);
|
||
nextBtn = $('.lb-next', ov);
|
||
|
||
$('.lb-x', ov).addEventListener('click', close);
|
||
prevBtn.addEventListener('click', function () { go(-1); });
|
||
nextBtn.addEventListener('click', function () { go(1); });
|
||
ov.addEventListener('click', function (e) {
|
||
// 点空白处（遮罩本身或图片外的区域）关闭
|
||
if (e.target === ov || e.target === media) { close(); }
|
||
});
|
||
|
||
// 触摸左右滑动
|
||
var tx = 0, ty = 0, tracking = false;
|
||
ov.addEventListener('touchstart', function (e) {
|
||
if (!e.touches || e.touches.length !== 1) { tracking = false; return; }
|
||
tx = e.touches[0].clientX; ty = e.touches[0].clientY; tracking = true;
|
||
}, { passive: true });
|
||
ov.addEventListener('touchend', function (e) {
|
||
if (!tracking || !e.changedTouches || !e.changedTouches.length) { return; }
|
||
tracking = false;
|
||
var dx = e.changedTouches[0].clientX - tx;
|
||
var dy = e.changedTouches[0].clientY - ty;
|
||
if (Math.abs(dx) < 40 || Math.abs(dx) < Math.abs(dy)) { return; }
|
||
go(dx < 0 ? 1 : -1); // 左滑＝看下一个，与浏览图片的直觉一致
|
||
}, { passive: true });
|
||
|
||
document.addEventListener('keydown', function (e) {
|
||
if (!ov || ov.hidden) { return; }
|
||
var k = e.key;
|
||
if (k === 'Escape') { close(); }
|
||
else if (k === 'ArrowLeft') { go(-1); }
|
||
else if (k === 'ArrowRight') { go(1); }
|
||
else if (k === 'Home') { cur = 0; render(); }
|
||
else if (k === 'End') { cur = items.length - 1; render(); }
|
||
else { return; }
|
||
e.preventDefault();
|
||
});
|
||
}
|
||
|
||
function render() {
|
||
if (!items.length) { return; }
|
||
var it = items[cur];
|
||
media.className = 'lb-media loading';
|
||
media.innerHTML = '';
|
||
|
||
var node;
|
||
if (it.kind === 'video') {
|
||
node = document.createElement('video');
|
||
node.controls = true;
|
||
node.autoplay = true;
|
||
node.playsInline = true;
|
||
node.setAttribute('playsinline', '');
|
||
node.src = it.src;
|
||
if (it.poster) { node.poster = it.poster; }
|
||
} else {
|
||
node = document.createElement('img');
|
||
node.alt = it.name || '';
|
||
node.src = it.src;
|
||
}
|
||
function ready() { media.classList.remove('loading'); }
|
||
node.addEventListener('load', ready);
|
||
node.addEventListener('loadeddata', ready);
|
||
node.addEventListener('error', ready);
|
||
media.appendChild(node);
|
||
|
||
nameEl.textContent = it.name || (it.kind === 'video' ? '视频' : '图片');
|
||
metaEl.textContent = (cur + 1) + ' / ' + items.length + (it.size ? ' · ' + it.size : '');
|
||
if (it.kind === 'video') {
|
||
origEl.hidden = true;
|
||
} else {
|
||
origEl.hidden = false;
|
||
origEl.href = it.full || it.src;
|
||
}
|
||
|
||
var multi = items.length > 1;
|
||
prevBtn.hidden = !multi;
|
||
nextBtn.hidden = !multi;
|
||
|
||
// 预载相邻图片，切换时更快
|
||
if (multi) {
|
||
var nb = [items[(cur + 1) % items.length], items[(cur - 1 + items.length) % items.length]];
|
||
for (var i = 0; i < nb.length; i++) {
|
||
if (nb[i].kind === 'image' && nb[i].src) { (new Image()).src = nb[i].src; }
|
||
}
|
||
}
|
||
}
|
||
|
||
function go(step) {
|
||
if (items.length < 2) { return; }
|
||
cur = (cur + step + items.length) % items.length;
|
||
render();
|
||
}
|
||
|
||
function open(list, idx) {
|
||
if (!built) { buildOverlay(); built = true; }
|
||
if (!list.length) { return; }
|
||
items = list;
|
||
cur = Math.max(0, Math.min(idx, list.length - 1));
|
||
lastFocus = document.activeElement;
|
||
|
||
// 打开灯箱时暂停正文里的内嵌视频，避免两个声音一起响
|
||
var inline = document.querySelectorAll('.atts video');
|
||
for (var i = 0; i < inline.length; i++) { try { inline[i].pause(); } catch (e) {} }
|
||
|
||
ov.hidden = false;
|
||
document.documentElement.classList.add('lb-open');
|
||
document.body.classList.add('lb-open');
|
||
render();
|
||
var x = $('.lb-x', ov);
|
||
if (x) { x.focus(); }
|
||
}
|
||
|
||
function close() {
|
||
if (!ov || ov.hidden) { return; }
|
||
ov.hidden = true;
|
||
media.innerHTML = ''; // 顺带停止灯箱里的视频播放
|
||
document.documentElement.classList.remove('lb-open');
|
||
document.body.classList.remove('lb-open');
|
||
if (lastFocus && lastFocus.focus) { try { lastFocus.focus(); } catch (e) {} }
|
||
}
|
||
|
||
// 收集一个画廊里的全部附件（按 DOM 顺序）
|
||
function itemsOf(gal) {
|
||
var els = $$('[data-lb-kind]', gal), out = [];
|
||
for (var i = 0; i < els.length; i++) {
|
||
var el = els[i];
|
||
out.push({
|
||
kind: el.getAttribute('data-lb-kind') || 'image',
|
||
src: el.getAttribute('data-lb-src') || el.getAttribute('href') || '',
|
||
full: el.getAttribute('data-lb-full') || '',
|
||
poster: el.getAttribute('data-lb-poster') || '',
|
||
name: el.getAttribute('data-lb-name') || '',
|
||
size: el.getAttribute('data-lb-size') || ''
|
||
});
|
||
}
|
||
return out;
|
||
}
|
||
|
||
for (var g = 0; g < galleries.length; g++) {
|
||
(function (gal) {
|
||
gal.addEventListener('click', function (e) {
|
||
var t = e.target, trigger = null;
|
||
while (t && t !== gal) {
|
||
if (t.getAttribute && t.getAttribute('data-lb-kind')) { trigger = t; break; }
|
||
t = t.parentNode;
|
||
}
|
||
if (!trigger) { return; }
|
||
e.preventDefault(); // 图片是 <a>，有 JS 时就在页内放大
|
||
|
||
var all = $$('[data-lb-kind]', gal), idx = 0;
|
||
for (var i = 0; i < all.length; i++) { if (all[i] === trigger) { idx = i; break; } }
|
||
open(itemsOf(gal), idx);
|
||
});
|
||
}(galleries[g]));
|
||
}
|
||
}
|
||
|
||
function boot() {
|
||
bindCaptchaRefresh();
|
||
bindAdminToggle();
|
||
bindNoDoubleSubmit();
|
||
bindUploaders();
|
||
bindLightbox();
|
||
}
|
||
|
||
if (document.readyState === 'loading') {
|
||
document.addEventListener('DOMContentLoaded', boot);
|
||
} else {
|
||
boot();
|
||
}
|
||
})();
|