Добавлена частичная поддержка формата Djvu

server/core/Reader/BookConverter/ConvertBase.js

@@ -15,6 +15,7 @@ class ConvertBase {
         this.calibrePath = `${config.dataDir}/calibre/ebook-convert`;
         this.sofficePath = '/usr/bin/soffice';
         this.pdfToHtmlPath = '/usr/bin/pdftohtml';
+        this.ddjvuPath = '/usr/bin/ddjvu';
     }
 
     async run(data, opts) {// eslint-disable-line no-unused-vars
@@ -30,6 +31,9 @@ class ConvertBase {
 
         if (!await fs.pathExists(this.pdfToHtmlPath))
             throw new Error('Внешний конвертер pdftohtml не найден');
+
+        if (!await fs.pathExists(this.ddjvuPath))
+            throw new Error('Внешний конвертер ddjvu не найден');
     }
 
     async execConverter(path, args, onData, abort) {

server/core/Reader/BookConverter/ConvertDjvu.js

@@ -0,0 +1,39 @@
+const fs = require('fs-extra');
+const path = require('path');
+
+const ConvertPdf = require('./ConvertPdf');
+
+class ConvertRtf extends ConvertPdf {
+    check(data, opts) {
+        const {inputFiles} = opts;
+
+        return this.config.useExternalBookConverter && 
+            inputFiles.sourceFileType && inputFiles.sourceFileType.ext == 'djvu';
+    }
+
+    async run(data, opts) {
+        if (!this.check(data, opts))
+            return false;
+        await this.checkExternalConverterPresent();
+
+        const {inputFiles, callback, abort} = opts;
+
+        const outFile = `${inputFiles.filesDir}/${path.basename(inputFiles.sourceFile)}`;
+        const pdfFile = `${outFile}.pdf`;
+
+        let perc = 0;
+        await this.execConverter(this.ddjvuPath, ['-format=pdf', '-quality=85', '-verbose', inputFiles.sourceFile, pdfFile], () => {
+            perc = (perc < 100 ? perc + 1 : 40);
+            callback(perc);
+        }, abort);
+
+        const pdfFileSize = (await fs.stat(pdfFile)).size;
+        if (pdfFileSize > 2*this.config.maxUploadFileSize) {
+            throw new Error(`Файл для конвертирования слишком большой|FORLOG| ${pdfFileSize} > ${2*this.config.maxUploadFileSize}`);
+        }
+
+        return await super.run(null, Object.assign({}, opts, {pdfFile, skipCheck: true}));
+    }
+}
+
+module.exports = ConvertRtf;

server/core/Reader/BookConverter/ConvertPdf.js

@@ -14,17 +14,20 @@ class ConvertPdf extends ConvertHtml {
     }
 
     async run(notUsed, opts) {
-        if (!this.check(notUsed, opts))
-            return false;
+        if (!opts.skipCheck) {
+            if (!this.check(notUsed, opts))
+                return false;
+        }
         await this.checkExternalConverterPresent();
 
-        const {inputFiles, callback, abort} = opts;
+        const {inputFiles, callback, abort, uploadFileName} = opts;
 
+        const inpFile = (opts.pdfFile ? opts.pdfFile : inputFiles.sourceFile);
         const outFile = `${inputFiles.filesDir}/${utils.randomHexString(10)}.xml`;
 
         //конвертируем в xml
         let perc = 0;
-        await this.execConverter(this.pdfToHtmlPath, ['-nodrm', '-c', '-s', '-xml', inputFiles.sourceFile, outFile], () => {
+        await this.execConverter(this.pdfToHtmlPath, ['-nodrm', '-c', '-s', '-xml', inpFile, outFile], () => {
             perc = (perc < 80 ? perc + 10 : 40);
             callback(perc);
         }, abort);
@@ -186,6 +189,8 @@ class ConvertPdf extends ConvertHtml {
         indents[0] = 0;
 
         //формируем текст
+        if (!title && uploadFileName)
+            title = uploadFileName;
         let text = `<title>${title}</title>`;
         let concat = '';
         let sp = '';

server/core/Reader/BookConverter/index.js

@@ -4,6 +4,7 @@ const FileDetector = require('../../FileDetector');
 //порядок важен
 const convertClassFactory = [
     require('./ConvertEpub'),
+    require('./ConvertDjvu'),
     require('./ConvertPdf'),
     require('./ConvertRtf'),
     require('./ConvertDocX'),