My Store: Add many books, with title, author, description and cover read out of each EPUB

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

mystore.js

@@ -7,11 +7,13 @@ const { pipeline } = require('stream/promises');
 const atomicWrite = require('./atomic');
 const users = require('./users'), settings = require('./settings'), books = require('./books');
 const { readBody } = require('./body');
+const { readEpub } = require('./epubmeta');
 
 const DATA_DIR = process.env.DATA_DIR || path.join(__dirname, 'data');
 const ROOT = () => path.join(DATA_DIR, 'mystore'), ITEMS = () => path.join(ROOT(), 'items.json'), FILES = () => path.join(ROOT(), 'files');
 const SEAFILE = () => (process.env.SEAFILE_URL || 'https://seafile.necloud.us').replace(/\/$/, '');
 const MAX_FILE = 1024 * 1024 * 1024, MAX_COVER = 3 * 1024 * 1024, MAX_EXT = 2 * 1024 * 1024, MAX_STATE = 256 * 1024, MAX_FILES_PER_ITEM = 200;
+const MAX_BOOK_IMPORT = 300 * 1024 * 1024;
 const KINDS = ['book', 'music', 'app', 'extension', 'link'];
 const PERMS = ['tasks.read', 'tasks.write', 'contacts.read', 'contacts.write', 'calendar.read', 'calendar.write', 'notes.read', 'notes.write', 'recipes.read', 'music.read']; // what an extension may ask the person for
 const BOOK_EXT = ['epub', 'pdf', 'mobi', 'azw3', 'azw', 'docx'];
@@ -107,6 +109,21 @@ async function handle(req, res) {
       if (it.kind === 'link') it.embed = !!b.embed;
       if (!old) { if (l.length >= 2000) throw fail(400, 'That is plenty of items'); l.push(it); } saveItems(l); return json(res, 200, view(it));
     }
+    if (p === '/import' && req.method === 'POST') { // bulk add: the body is one book file (its name is in ?name=); the title, author, description and cover come out of the book itself (admin)
+      needAdmin(me); const name = safeName(u.searchParams.get('name')), ext = extOf(name);
+      if (!BOOK_EXT.includes(ext)) throw fail(400, 'A book must be an EPUB, PDF, MOBI, AZW3 or DOCX file');
+      const l = loadItems(); if (l.length >= 2000) throw fail(400, 'That is plenty of items');
+      const it = { id: newId(), kind: 'book', files: [], cover: false, added: Date.now() }, fid = newId(), file = fileOn(it, fid);
+      const size = await receive(req, file, MAX_BOOK_IMPORT), buf = fs.readFileSync(file), hash = crypto.createHash('sha1').update(buf).digest('hex');
+      const dup = l.find(x => x.kind === 'book' && x.files.some(f => f.hash === hash));
+      if (dup) { fs.rmSync(file, { force: true }); return json(res, 200, { duplicate: true, item: view(dup) }); }
+      let meta = {}; if (ext === 'epub') { try { meta = readEpub(buf); } catch { meta = {}; } }
+      const plain = path.basename(name, '.' + ext).replace(/_+/g, ' ').trim();
+      Object.assign(it, { title: str(meta.title, 120) || str(plain, 120) || 'Untitled', creator: str(meta.author, 120), description: str(meta.description, 2000), version: '', url: '', updated: Date.now() });
+      it.files.push({ id: fid, name, size, ext, hash });
+      if (meta.cover && meta.cover.data.length <= MAX_COVER) { fs.writeFileSync(coverOn(it), meta.cover.data, { mode: 0o600 }); it.cover = meta.cover.type; }
+      l.push(it); saveItems(l); return json(res, 200, { item: view(it), noAuthor: !it.creator, noCover: !it.cover });
+    }
     if ((m = /^\/items\/([0-9a-f]{12})$/.exec(p)) && req.method === 'DELETE') {
       needAdmin(me); const l = loadItems(), it = l.find(x => x.id === m[1]); if (!it) throw fail(404, 'Item not found');
       for (const f of it.files) fs.rmSync(fileOn(it, f.id), { force: true }); fs.rmSync(coverOn(it), { force: true }); saveItems(l.filter(x => x !== it)); return json(res, 200, { ok: true });