Files
document-server-integration/web/documentserver-example/nodejs/helpers/fileUtility.js

101 lines
3.4 KiB
JavaScript

/**
*
* (c) Copyright Ascensio System SIA 2023
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
const fileUtility = {};
// get file name from the given url
fileUtility.getFileName = function (url, withoutExtension) {
if (!url) return '';
let parts = url.split('\\');
parts = parts.pop();
parts = parts.split('/');
let fileName = parts.pop(); // get the file name from the last part of the url
[fileName] = fileName.split('?');
// get file name without extension
if (withoutExtension) {
return fileName.substring(0, fileName.lastIndexOf('.'));
}
return fileName;
};
// get file extension from the given url
fileUtility.getFileExtension = function (url, withoutDot) {
if (!url) return null;
const fileName = fileUtility.getFileName(url); // get file name from the given url
const parts = fileName.toLowerCase().split('.');
return withoutDot ? parts.pop() : `.${parts.pop()}`; // get the extension from the file name with or without dot
};
// get file type from the given url
fileUtility.getFileType = function (url) {
const ext = fileUtility.getFileExtension(url); // get the file extension from the given url
// word type for document extensions
if (fileUtility.documentExts.indexOf(ext) != -1) return fileUtility.fileType.word;
// cell type for spreadsheet extensions
if (fileUtility.spreadsheetExts.indexOf(ext) != -1) return fileUtility.fileType.cell;
// slide type for presentation extensions
if (fileUtility.presentationExts.indexOf(ext) != -1) return fileUtility.fileType.slide;
return fileUtility.fileType.word; // the default file type is word
}
fileUtility.fileType = {
word: 'word',
cell: 'cell',
slide: 'slide'
}
// the document extension list
fileUtility.documentExts = ['.doc', '.docx', '.oform', '.docm', '.dot', '.dotx', '.dotm', '.odt',
'.fodt', '.ott', '.rtf', '.txt', '.html', '.htm', '.mht', '.xml', '.pdf', '.djvu', '.fb2', '.epub', '.xps', '.oxps'];
// the spreadsheet extension list
fileUtility.spreadsheetExts = ['.xls', '.xlsx', '.xlsm', '.xlsb', '.xlt',
'.xltx', '.xltm', '.ods', '.fods', '.ots', '.csv'];
// the presentation extension list
fileUtility.presentationExts = ['.pps', '.ppsx', '.ppsm', '.ppt', '.pptx', '.pptm', '.pot',
'.potx', '.potm', '.odp', '.fodp', '.otp'];
// get url parameters
// eslint-disable-next-line no-unused-vars
const getUrlParams = function (url) {
try {
const query = url.split('?').pop(); // take all the parameters which are placed after ? sign in the file url
const params = query.split('&'); // parameters are separated by & sign
const map = {}; // write parameters and their values to the map dictionary
for (let i = 0; i < params.length; i += 1) {
const parts = param.split('=');
[,map[parts[0]]] = parts;
}
return map;
} catch (ex) {
return null;
}
}
// save all the functions to the fileUtility module to export it later in other files
module.exports = fileUtility;