lint: src/node/utils/LibreOffice.js
John McLear
Richard Hansen
parent
85d1dc8d71
commit
b5e04d867e
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@ -1,3 +1,4 @@
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'use strict';
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/**
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* Controls the communication with LibreOffice
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*/
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@ -24,52 +25,9 @@ const path = require('path');
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const settings = require('./Settings');
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const spawn = require('child_process').spawn;
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// Conversion tasks will be queued up, so we don't overload the system
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const queue = async.queue(doConvertTask, 1);
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const libreOfficeLogger = log4js.getLogger('LibreOffice');
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/**
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* Convert a file from one type to another
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*
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* @param {String} srcFile The path on disk to convert
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* @param {String} destFile The path on disk where the converted file should be stored
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* @param {String} type The type to convert into
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* @param {Function} callback Standard callback function
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*/
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exports.convertFile = function (srcFile, destFile, type, callback) {
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// Used for the moving of the file, not the conversion
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const fileExtension = type;
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if (type === 'html') {
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// "html:XHTML Writer File:UTF8" does a better job than normal html exports
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if (path.extname(srcFile).toLowerCase() === '.doc') {
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type = 'html';
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}
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// PDF files need to be converted with LO Draw ref https://github.com/ether/etherpad-lite/issues/4151
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if (path.extname(srcFile).toLowerCase() === '.pdf') {
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type = 'html:XHTML Draw File';
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}
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}
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// soffice can't convert from html to doc directly (verified with LO 5 and 6)
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// we need to convert to odt first, then to doc
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// to avoid `Error: no export filter for /tmp/xxxx.doc` error
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if (type === 'doc') {
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queue.push({
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srcFile,
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destFile: destFile.replace(/\.doc$/, '.odt'),
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type: 'odt',
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callback() {
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queue.push({srcFile: srcFile.replace(/\.html$/, '.odt'), destFile, type, callback, fileExtension});
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},
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});
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} else {
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queue.push({srcFile, destFile, type, callback, fileExtension});
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}
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};
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function doConvertTask(task, callback) {
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const doConvertTask = (task, callback) => {
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const tmpDir = os.tmpdir();
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async.series([
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@ -77,8 +35,10 @@ function doConvertTask(task, callback) {
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* use LibreOffice to convert task.srcFile to another format, given in
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* task.type
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*/
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function (callback) {
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libreOfficeLogger.debug(`Converting ${task.srcFile} to format ${task.type}. The result will be put in ${tmpDir}`);
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(callback) => {
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libreOfficeLogger.debug(
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`Converting ${task.srcFile} to format ${task.type}. The result will be put in ${tmpDir}`
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);
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const soffice = spawn(settings.soffice, [
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'--headless',
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'--invisible',
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@ -112,7 +72,7 @@ function doConvertTask(task, callback) {
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soffice.on('exit', (code) => {
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clearTimeout(hangTimeout);
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if (code != 0) {
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if (code !== 0) {
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// Throw an exception if libreoffice failed
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return callback(`LibreOffice died with exit code ${code} and message: ${stdoutBuffer}`);
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}
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@ -123,10 +83,10 @@ function doConvertTask(task, callback) {
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},
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// Move the converted file to the correct place
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function (callback) {
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(callback) => {
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const filename = path.basename(task.srcFile);
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const sourceFilename = `${filename.substr(0, filename.lastIndexOf('.'))}.${task.fileExtension}`;
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const sourcePath = path.join(tmpDir, sourceFilename);
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const sourceFile = `${filename.substr(0, filename.lastIndexOf('.'))}.${task.fileExtension}`;
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const sourcePath = path.join(tmpDir, sourceFile);
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libreOfficeLogger.debug(`Renaming ${sourcePath} to ${task.destFile}`);
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fs.rename(sourcePath, task.destFile, callback);
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},
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@ -137,4 +97,55 @@ function doConvertTask(task, callback) {
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// Invoke the callback for the task
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task.callback(err);
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});
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}
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};
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// Conversion tasks will be queued up, so we don't overload the system
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const queue = async.queue(doConvertTask, 1);
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/**
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* Convert a file from one type to another
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*
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* @param {String} srcFile The path on disk to convert
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* @param {String} destFile The path on disk where the converted file should be stored
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* @param {String} type The type to convert into
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* @param {Function} callback Standard callback function
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*/
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exports.convertFile = (srcFile, destFile, type, callback) => {
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// Used for the moving of the file, not the conversion
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const fileExtension = type;
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if (type === 'html') {
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// "html:XHTML Writer File:UTF8" does a better job than normal html exports
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if (path.extname(srcFile).toLowerCase() === '.doc') {
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type = 'html';
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}
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// PDF files need to be converted with LO Draw ref https://github.com/ether/etherpad-lite/issues/4151
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if (path.extname(srcFile).toLowerCase() === '.pdf') {
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type = 'html:XHTML Draw File';
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}
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}
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// soffice can't convert from html to doc directly (verified with LO 5 and 6)
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// we need to convert to odt first, then to doc
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// to avoid `Error: no export filter for /tmp/xxxx.doc` error
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if (type === 'doc') {
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queue.push({
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srcFile,
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destFile: destFile.replace(/\.doc$/, '.odt'),
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type: 'odt',
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callback: () => {
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queue.push(
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{
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srcFile: srcFile.replace(/\.html$/, '.odt'),
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destFile,
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type,
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callback,
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fileExtension,
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}
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);
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},
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});
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} else {
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queue.push({srcFile, destFile, type, callback, fileExtension});
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}
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};
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