feat: 新增 PDF 转换服务（epub->pdf，cookie 用户隔离，软删/硬删两级删除）
纯 Python 转换（ebooklib 解析 epub + weasyprint 渲染 HTML/CSS 为 PDF）， 无需 calibre/xvfb 系统依赖。复用 UploadedFile 存储（原始文件与产物 PDF）。 - model/dao/schema：PdfJob 记录转换任务（owner_cookie/source/output/进度/状态） - pdf_converter：epub->PDF 转换器（按 spine 顺序拼 HTML，OPF 目录解析相对资源） - pdf_service：上传落盘 + asyncio 后台转换（独立 Session）+ 进度追踪 + 两级删除 · 用户软删（user_deleted，管理页仍可见）· 管理员硬删（真正删磁盘+记录） - pdf_controller：/api/pdf/*（用户，cookie）+ /api/admin/pdf/*（Basic Auth） - /pdf、/pdf-admin 页面（原生 JS，复用 common.css/js） - 配置 pdf 段（max_size 250MB、转换超时、cookie） - pytest 7 项（SQLite→MySQL 隔离测试库）：上传/转换/下载/软删/硬删/超限/越权
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static/pdf.js
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191
static/pdf.js
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/* PDF 转换页：上传 epub + 进度轮询 + 下载 + 用户软删。
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复用 common.js 的 el/toast/fmtBytes/fmtTime/api 工具。
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state.items 缓存当前用户任务列表；轮询未完成任务进度直至终态。 */
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(function () {
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"use strict";
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const { el, toast, fmtBytes, fmtTime, api } = window.ZK;
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const dropzone = document.getElementById("dropzone");
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const fileInput = document.getElementById("fileInput");
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const uploadProgress = document.getElementById("uploadProgress");
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const uploadName = document.getElementById("uploadName");
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const uploadBar = document.getElementById("uploadBar");
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const refreshBtn = document.getElementById("refresh");
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const countEl = document.getElementById("count");
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const listEl = document.getElementById("list");
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const state = { items: [], polling: null };
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refreshBtn.addEventListener("click", () => load());
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// ---------- 上传 ----------
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dropzone.addEventListener("dragover", (e) => {
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e.preventDefault();
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dropzone.classList.add("is-drag");
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});
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dropzone.addEventListener("dragleave", () => dropzone.classList.remove("is-drag"));
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dropzone.addEventListener("drop", (e) => {
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e.preventDefault();
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dropzone.classList.remove("is-drag");
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if (e.dataTransfer.files.length) handleFile(e.dataTransfer.files[0]);
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});
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fileInput.addEventListener("change", () => {
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if (fileInput.files.length) handleFile(fileInput.files[0]);
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fileInput.value = "";
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});
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function handleFile(file) {
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const name = file.name || "";
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if (!name.toLowerCase().endsWith(".epub")) {
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toast("仅支持 epub 文件", "err");
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return;
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}
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if (file.size > 250 * 1024 * 1024) {
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toast("文件超过 250MB 上限", "err");
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return;
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}
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uploadFile(file);
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}
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function uploadFile(file) {
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uploadProgress.classList.remove("hidden");
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uploadName.textContent = file.name;
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uploadBar.style.width = "0%";
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const xhr = new XMLHttpRequest();
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xhr.open("POST", "/api/pdf/jobs");
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xhr.upload.onprogress = (e) => {
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if (e.lengthComputable) {
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uploadBar.style.width = Math.round((e.loaded / e.total) * 100) + "%";
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}
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};
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xhr.onload = () => {
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uploadProgress.classList.add("hidden");
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if (xhr.status === 200) {
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toast("已提交，转换中…");
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load();
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} else {
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let msg = "上传失败";
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try {
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const b = JSON.parse(xhr.responseText);
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msg = b.detail || msg;
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} catch {}
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toast(msg, "err");
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}
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};
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xhr.onerror = () => {
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uploadProgress.classList.add("hidden");
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toast("网络错误", "err");
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};
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const fd = new FormData();
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fd.append("file", file);
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xhr.send(fd);
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}
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// ---------- 列表 ----------
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async function load() {
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listEl.innerHTML = '<div class="skel">加载中…</div>';
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countEl.textContent = "";
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try {
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const res = await api("/api/pdf/jobs");
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if (!res.ok) throw new Error("HTTP " + res.status);
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const body = await res.json();
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state.items = body.items || [];
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countEl.textContent = `共 ${body.total} 个任务`;
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render();
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schedulePoll();
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} catch (e) {
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listEl.innerHTML = '<div class="empty">加载失败：' + (e.message || e) + "</div>";
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}
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}
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function render() {
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if (!state.items.length) {
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listEl.innerHTML = '<div class="empty">还没有任务。上传一个 epub 试试吧。</div>';
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return;
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}
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const tbl = el("table", { class: "jobs-table" });
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tbl.appendChild(el("thead", null,
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el("tr", null,
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el("th", { class: "col-name" }, "文件名"),
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el("th", { class: "col-size" }, "大小"),
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el("th", { class: "col-status" }, "状态"),
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el("th", { class: "col-time" }, "创建时间"),
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el("th", { class: "col-act" }, "操作")
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)
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));
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const tbody = el("tbody", null);
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for (const j of state.items) tbody.appendChild(renderRow(j));
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tbl.appendChild(tbody);
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listEl.innerHTML = "";
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listEl.appendChild(tbl);
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}
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function renderRow(j) {
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return el("tr", { dataset: { id: j.id } },
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el("td", { class: "col-name" }, j.source_filename),
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el("td", { class: "col-size mono" }, fmtBytes(j.source_size)),
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el("td", { class: "col-status" }, statusCell(j)),
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el("td", { class: "col-time muted" }, fmtTime(j.created_at)),
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el("td", { class: "col-act" }, actionsCell(j))
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);
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}
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function statusCell(j) {
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if (j.status === "done") return el("span", { class: "tag ok" }, "完成");
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if (j.status === "failed") return el("span", { class: "tag err", title: j.error_message || "" }, "失败");
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// pending / converting 显示进度条
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const wrap = el("span", { class: "prog" });
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wrap.appendChild(el("span", { class: "prog__label" }, j.status === "converting" ? "转换中" : "排队中"));
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wrap.appendChild(el("span", { class: "bar bar--sm" },
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el("span", { class: "bar__fill", style: "width:" + (j.progress || 0) + "%" })
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));
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return wrap;
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}
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function actionsCell(j) {
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const cell = el("span", null);
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if (j.status === "done") {
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cell.appendChild(el("a", { class: "btn primary", href: `/api/pdf/jobs/${j.id}/download`, download: "" }, "下载"));
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}
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cell.appendChild(el("button", { class: "btn danger", onclick: () => removeOne(j) }, "删除"));
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return cell;
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}
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// ---------- 轮询未完成任务 ----------
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function schedulePoll() {
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if (state.polling) clearInterval(state.polling);
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const pending = state.items.filter((j) => j.status === "pending" || j.status === "converting");
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if (!pending.length) return;
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state.polling = setInterval(async () => {
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let stillPending = false;
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for (const j of pending) {
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try {
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const res = await api(`/api/pdf/jobs/${j.id}`);
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if (res.ok) {
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const fresh = await res.json();
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Object.assign(j, fresh);
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}
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} catch {}
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if (j.status === "pending" || j.status === "converting") stillPending = true;
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}
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render();
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if (!stillPending) {
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clearInterval(state.polling);
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state.polling = null;
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}
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}, 1500);
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}
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async function removeOne(j) {
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if (!confirm(`确定删除「${j.source_filename}」？\n删除后将不再显示（管理员仍可见，需管理员彻底删除才会清除）。`)) return;
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try {
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const res = await api(`/api/pdf/jobs/${j.id}`, { method: "DELETE" });
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if (!res.ok) throw new Error("HTTP " + res.status);
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await load();
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toast("已删除");
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} catch (e) {
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toast("删除失败：" + (e.message || e), "err");
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}
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}
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load();
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})();
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