50 lines
1.5 KiB
JavaScript
50 lines
1.5 KiB
JavaScript
const fs = require('fs-extra');
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const path = require('path');
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const ConvertBase = require('./ConvertBase');
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class ConvertEpub extends ConvertBase {
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async check(data, opts) {
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const {inputFiles} = opts;
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if (this.config.useExternalBookConverter &&
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inputFiles.sourceFileType && inputFiles.sourceFileType.ext == 'zip') {
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//ищем файл 'mimetype'
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for (const file of inputFiles.files) {
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if (file.path == 'mimetype') {
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const mt = await fs.readFile(`${inputFiles.filesDir}/${file.path}`);
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if (mt.toString().trim() == 'application/epub+zip')
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return true;
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break;
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}
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}
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}
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return false;
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}
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async run(data, opts) {
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if (!await this.check(data, opts))
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return false;
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await this.checkExternalConverterPresent();
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const {inputFiles, callback, abort} = opts;
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const outFile = `${inputFiles.filesDir}/${path.basename(inputFiles.sourceFile)}`;
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const epubFile = `${outFile}.epub`;
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const fb2File = `${outFile}.fb2`;
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await fs.copy(inputFiles.sourceFile, epubFile);
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let perc = 0;
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await this.execConverter(this.calibrePath, [epubFile, fb2File, '-vv'], () => {
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perc = (perc < 100 ? perc + 1 : 50);
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callback(perc);
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}, abort);
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return await fs.readFile(fb2File);
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}
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}
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module.exports = ConvertEpub;
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