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Libros de texto: fuente Project Gutenberg y lectura continua

Browse Source 
Los EPUB se convierten en el servidor en una lista cerrada de bloques y el
navegador los maqueta en páginas según su pantalla. Cada página se dibuja en
un canvas y llega al lector como una imagen más, así que hoja, sombra,
hendidura y sonido no cambian.

El libro se lee de corrido: cada capítulo empieza debajo del anterior y el
progreso se sigue guardando por capítulo. El catálogo sale del OPDS de
gutenberg.org, con reintentos.

Ajustes: mostrar solo manga, solo libros o ambos, por usuario.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
nino
2026-11-02 21:02:29 -06:00
co-authored by Claude Opus 5.5
parent 5776389ebb
commit be19e35156
6 changed files with 1089 additions and 66 deletions
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app/server.js
+25 -8
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@@ -15,6 +15,7 @@ import { setupSecurity, safeFetch } from './security.js'
import { setupM440, MI_BASE } from './m440.js'
import { setupConnectivity } from './connectivity.js'
import { setupMeta } from './meta.js'
import { setupBooks, isBookId } from './books.js'
const PORT = Number(process.env.PORT || 3352)
const DATA_DIR = process.env.DATA_DIR || '/app/data'
@@ -162,10 +163,12 @@ const DUMMY_HASH = hashPassword(crypto.randomBytes(16).toString('hex'))
function getUser(req) {
const m = /(?:^|;\s*)sid=([^;]+)/.exec(req.headers.cookie || '')
if (!m) return null
return db.prepare(`SELECT u.id, u.username, u.lang FROM sessions s JOIN users u ON u.id = s.user_id
return db.prepare(`SELECT u.id, u.username, u.lang, u.content_mode FROM sessions s JOIN users u ON u.id = s.user_id
WHERE s.token = ? AND s.expires_at > ?`).get(m[1], Date.now()) ?? null
}
if (!db.prepare('PRAGMA table_info(users)').all().some(c => c.name === 'content_mode')) db.exec("ALTER TABLE users ADD COLUMN content_mode TEXT NOT NULL DEFAULT 'both'")
// ---------- Cliente MangaDex (adaptado de Tanko src/servers/mangadex.ts) ----------
const cache = new Map()
async function cached(key, ttl, fn) {
@@ -456,7 +459,7 @@ const lcPages = async chapterId => (await lcPageUrls(chapterId)).map(imgUrl)
const mi = setupM440({ cached, httpError: (status, message) => new HttpError(status, message), coverUrl, decode, BROWSER_UA, net })
const miPages = async chapterId => (await mi.pageUrls(chapterId)).map(imgUrl)
// Fuente según el ID: 'lc' y 'mi' son sitios en español; lo demás es MangaDex.
const sourceOf = id => (id.startsWith('lc~') ? 'lc' : id.startsWith('mi~') ? 'mi' : 'md')
const sourceOf = id => (id.startsWith('lc~') ? 'lc' : id.startsWith('mi~') ? 'mi' : id.startsWith('gb~') ? 'gb' : 'md')
const spanishOnly = id => sourceOf(id) !== 'md'
// Proxy de imágenes: MangaDex bloquea el hotlinking de portadas y así el navegador no depende de CDNs ajenos.
@@ -539,6 +542,7 @@ async function fetchMangaFull(mangaId, lang) {
const src = sourceOf(mangaId)
return src === 'lc' ? lcManga(mangaId)
: src === 'mi' ? mi.manga(mangaId)
: src === 'gb' ? books.manga(mangaId)
: { manga: await getManga(mangaId, lang), chapters: await getChapters(mangaId, lang) }
}
@@ -777,8 +781,8 @@ async function readBody(req) {
}
try { return JSON.parse(Buffer.concat(chunks).toString() || '{}') } catch { throw new HttpError(400, 'JSON inválido') }
}
const MANGA_ID = /^([0-9a-f-]{36}|lc~[a-z0-9]+~[a-z0-9-]+|mi~[a-z0-9._-]+)$/
const CHAPTER_ID = /^([0-9a-f-]{36}|lc~[a-z0-9]+~[a-z0-9-]+~[0-9a-z.-]+|mi~[a-z0-9._-]+~[a-z0-9._-]+)$/
const MANGA_ID = /^([0-9a-f-]{36}|lc~[a-z0-9]+~[a-z0-9-]+|mi~[a-z0-9._-]+|gb~\d{1,7})$/
const CHAPTER_ID = /^([0-9a-f-]{36}|lc~[a-z0-9]+~[a-z0-9-]+~[0-9a-z.-]+|mi~[a-z0-9._-]+~[a-z0-9._-]+|gb~\d{1,7}~\d{1,5})$/
const LANG = /^[a-z]{2}(-[a-z]{2})?$/
// Manga en el historial o en seguidos del usuario (sus portadas se reescalan).
const tracked = (userId, mangaId) => !!db.prepare(`SELECT 1 FROM progress WHERE user_id = ? AND manga_id = ?
@@ -877,7 +881,7 @@ async function route(req, res) {
return
}
if (p.startsWith('/api/clips') && (await clips.route(p, method, q, req, res, user)) !== false) return
if (p.startsWith('/api/meta/') && MANGA_ID.test(decodeURIComponent(p.split('/')[3] || '')) && (await meta.route(p, method, res)) !== false) return
if (p.startsWith('/api/meta/') && MANGA_ID.test(decodeURIComponent(p.split('/')[3] || '')) && !isBookId(decodeURIComponent(p.split('/')[3] || '')) && (await meta.route(p, method, res)) !== false) return
if (/^\/api\/(lists|prefetch|recommendations)\b/.test(p) && (await library.route(p, method, q, req, res, user)) !== false) return
if (p === '/api/settings' && method === 'POST') {
@@ -886,6 +890,10 @@ async function route(req, res) {
if (!LANG.test(body.lang)) throw new HttpError(400, 'Idioma inválido')
db.prepare('UPDATE users SET lang = ? WHERE id = ?').run(body.lang, user.id)
}
if (body.contentMode !== undefined) {
if (!['both', 'manga', 'books'].includes(body.contentMode)) throw new HttpError(400, 'Valor inválido')
db.prepare('UPDATE users SET content_mode = ? WHERE id = ?').run(body.contentMode, user.id)
}
if (body.newPassword !== undefined) {
const row = db.prepare('SELECT pass_hash FROM users WHERE id = ?').get(user.id)
if (!verifyPassword(String(body.oldPassword || '').slice(0, 256), row.pass_hash)) { security.fail(ip, 'contraseña actual incorrecta'); throw new HttpError(401, 'Contraseña actual incorrecta') }
@@ -919,12 +927,13 @@ async function route(req, res) {
const lang = LANG.test(q.get('lang') || '') ? q.get('lang') : user.lang
if (p === '/api/categories' && method === 'GET') {
return json(res, 200, !net.online() ? [] : q.get('source') === 'lc' ? await lcCategories() : q.get('source') === 'mi' ? [] : await mdCategories())
return json(res, 200, !net.online() ? [] : q.get('source') === 'lc' ? await lcCategories() : q.get('source') === 'mi' || q.get('source') === 'gb' ? [] : await mdCategories())
}
if (p === '/api/search' && method === 'GET') {
const page = Math.min(Math.max(Number(q.get('page')) | 0, 1), 500)
const tag = q.get('tag') || ''
if (!net.online()) return json(res, 200, localSearch(q.get('q') || ''))
if (q.get('source') === 'gb') return json(res, 200, await books.search((q.get('q') || '').slice(0, 100), q.get('mode'), page, user.lang))
if (q.get('source') === 'mi') return json(res, 200, await mi.search((q.get('q') || '').slice(0, 100), q.get('mode'), page))
if (q.get('source') === 'lc') return json(res, 200, await lcSearch((q.get('q') || '').slice(0, 100), q.get('mode'), tag, page))
const anyLang = q.get('anyLang') === '1'
@@ -951,9 +960,15 @@ async function route(req, res) {
const reads = db.prepare('SELECT chapter_id, page, total_pages FROM chapter_reads WHERE user_id = ? AND manga_id = ?').all(user.id, m[1])
const progress = db.prepare('SELECT * FROM progress WHERE user_id = ? AND manga_id = ?').get(user.id, m[1]) ?? null
const chapterLangs = chapters.length || manga.source !== 'md' || offline ? [] : await getChapterLangs(m[1]).catch(() => [])
return json(res, 200, { manga, chapters, lang, reads, progress, chapterLangs, offline, downloaded, download: downloadInfo(m[1], true), upscale: upscale.info(m[1]), clips: clips.count(user.id, m[1]), lists: library.listsWith(user.id, m[1]), info: meta.cachedInfo(m[1]), clipBanner: clips.bannerFor(user.id, m[1]), ...features.mangaExtras(user.id, manga) })
return json(res, 200, { manga, chapters, lang, reads, progress, chapterLangs, offline, downloaded, download: downloadInfo(m[1], true), upscale: upscale.info(m[1]), clips: clips.count(user.id, m[1]), lists: library.listsWith(user.id, m[1]), info: isBookId(m[1]) ? null : meta.cachedInfo(m[1]), clipBanner: clips.bannerFor(user.id, m[1]), ...features.mangaExtras(user.id, manga) })
}
if ((m = /^\/api\/book\/([^/]+)\/text$/.exec(p)) && MANGA_ID.test(m[1]) && isBookId(m[1]) && method === 'GET') return books.sendText(req, res, m[1])
if ((m = /^\/api\/book\/([^/]+)\/img\/(\d{1,5})$/.exec(p)) && MANGA_ID.test(m[1]) && isBookId(m[1]) && method === 'GET') return books.sendImage(res, m[1], Number(m[2]))
if ((m = /^\/api\/chapter\/([^/]+)$/.exec(p)) && CHAPTER_ID.test(m[1]) && method === 'GET') {
if (isBookId(m[1])) {
const read = db.prepare('SELECT page, total_pages FROM chapter_reads WHERE user_id = ? AND chapter_id = ?').get(user.id, m[1])
return json(res, 200, { text: true, ...(await books.chapter(m[1])), pages: [], savedPage: read?.page ?? 0, savedTotal: read?.total_pages ?? 0, local: false, hd: false, hdAvailable: false })
}
const hdAvailable = !!upscale.hdFileOf(m[1])
const hd = hdAvailable && q.get('hd') !== '0'
const local = localChapter(m[1], hd)
@@ -1013,6 +1028,7 @@ async function route(req, res) {
return json(res, 200, d && { ...d, shared: sharedWith(user.id, m[1]) })
}
if ((m = /^\/api\/download\/([^/]+)$/.exec(p)) && MANGA_ID.test(m[1]) && method === 'POST') {
if (isBookId(m[1])) throw new HttpError(400, 'Los libros no se descargan como capítulos')
const b = await readBody(req)
const dlLang = spanishOnly(m[1]) ? 'es' : LANG.test(b.lang || '') ? b.lang : user.lang
const title = String(b.title || '').slice(0, 300) || (await fetchMangaFull(m[1], dlLang)).manga.title
@@ -1066,7 +1082,7 @@ async function route(req, res) {
.run(user.id, b.chapterId, b.mangaId, page, total, now)
if (db.prepare('SELECT 1 FROM downloads WHERE manga_id = ?').get(b.mangaId)) linkDownload(user.id, b.mangaId)
features.onProgress(user.id, b, page, total, prevPage)
library.onProgress(user.id, b, page, total)
if (!isBookId(b.mangaId)) library.onProgress(user.id, b, page, total)
return json(res, 200, { ok: true })
}
if ((m = /^\/api\/history\/([^/]+)$/.exec(p)) && MANGA_ID.test(m[1]) && method === 'DELETE') {
@@ -1080,6 +1096,7 @@ async function route(req, res) {
}
const security = setupSecurity({ db })
const books = setupBooks({ DATA_DIR, cached, HttpError, coverUrl, UA, net, safeFetch })
const features = setupFeatures({ db, fetchMangaFull, enqueueDownload, downloadInfo, HttpError, json, readBody, MANGA_ID, net })
const upscale = setupUpscale({ db, MANGA_DIR, HttpError, json, readBody, MANGA_ID })
const covers = setupCovers({ DATA_DIR, upscale })