From bb5adcdaf621f6b4116ecb79411c5594e2dd7f4e Mon Sep 17 00:00:00 2001
From: Book Pauk <bookpauk@gmail.com>
Date: Mon, 7 Dec 2020 01:30:10 +0700
Subject: [PATCH] =?UTF-8?q?=D0=A0=D0=B5=D1=84=D0=B0=D0=BA=D1=82=D0=BE?=
 =?UTF-8?q?=D1=80=D0=B8=D0=BD=D0=B3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../core/Reader/BookConverter/ConvertDjvu.js  | 39 +++++++++++++------
 1 file changed, 28 insertions(+), 11 deletions(-)

diff --git a/server/core/Reader/BookConverter/ConvertDjvu.js b/server/core/Reader/BookConverter/ConvertDjvu.js
index 98dfadea..28e75d8e 100644
--- a/server/core/Reader/BookConverter/ConvertDjvu.js
+++ b/server/core/Reader/BookConverter/ConvertDjvu.js
@@ -2,9 +2,9 @@ const fs = require('fs-extra');
 const path = require('path');
 const utils = require('../../utils');
 
-const ConvertHtml = require('./ConvertHtml');
+const ConvertBase = require('./ConvertBase');
 
-class ConvertDjvu extends ConvertHtml {
+class ConvertDjvu extends ConvertBase {
     check(data, opts) {
         const {inputFiles} = opts;
 
@@ -59,9 +59,17 @@ class ConvertDjvu extends ConvertHtml {
         }, abort);
 
         //читаем изображения
+        limitSize = 2*this.config.maxUploadFileSize;
+        let imagesSize = 0;
+
         const loadImage = async(image) => {
             image.data = (await fs.readFile(image.file)).toString('base64');
             image.name = path.basename(image.file);
+
+            imagesSize += image.data.length;
+            if (imagesSize > limitSize) {
+                throw new Error(`Файл для конвертирования слишком большой|FORLOG| imagesSize: ${imagesSize} > ${limitSize}`);
+            }
         }
 
         let files = [];
@@ -82,20 +90,29 @@ class ConvertDjvu extends ConvertHtml {
 
         await Promise.all(loading);
 
-        //формируем текст
-        limitSize = 2*this.config.maxUploadFileSize;
+        //формируем fb2
+        let titleInfo = {};
+        let desc = {_n: 'description', 'title-info': titleInfo};
+        let pars = [];
+        let body = {_n: 'body', section: {_a: [pars]}};
+        let binary = [];
+        let fb2 = [desc, body, binary];
+
         let title = '';
         if (uploadFileName)
             title = uploadFileName;
-        let text = `<title>${title}</title>`;
-        for (const image of images) {
-            text += `<fb2-image type="image/jpeg" name="${image.name}">${image.data}</fb2-image>`;
 
-            if (text.length > limitSize) {
-                throw new Error(`Файл для конвертирования слишком большой|FORLOG| text.length: ${text.length} > ${limitSize}`);
-            }
+        titleInfo['book-title'] = title;
+
+        for (const image of images) {
+            const img = {_n: 'binary', _attrs: {id: image.name, 'content-type': 'image/jpeg'}, _t: image.data};
+            binary.push(img);
+
+            pars.push({_n: 'p', _t: ''});
+            pars.push({_n: 'image', _attrs: {'l:href': `#${image.name}`}});
         }
-        return await super.run(Buffer.from(text), {skipCheck: true, isText: true, cutTitle: true});
+
+        return this.formatFb2(fb2);
     }
 }