mirror of
https://github.com/streetwriters/notesnook.git
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88 lines
3.0 KiB
TypeScript
88 lines
3.0 KiB
TypeScript
/*
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This file is part of the Notesnook project (https://notesnook.com/)
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Copyright (C) 2023 Streetwriters (Private) Limited
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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export function formatBytes(bytes: number, decimals = 2) {
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if (bytes === 0) return "0 Bytes";
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const k = 1024;
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const dm = decimals < 0 ? 0 : decimals;
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const sizes = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
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const i = Math.floor(Math.log(bytes) / Math.log(k));
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return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + " " + sizes[i];
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}
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/*jshint node:true*/
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/**
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* Replaces characters in strings that are illegal/unsafe for filenames.
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* Unsafe characters are either removed or replaced by a substitute set
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* in the optional `options` object.
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*
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* Illegal Characters on Various Operating Systems
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* / ? < > \ : * | "
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* https://kb.acronis.com/content/39790
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*
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* Unicode Control codes
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* C0 0x00-0x1f & C1 (0x80-0x9f)
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* http://en.wikipedia.org/wiki/C0_and_C1_control_codes
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*
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* Reserved filenames on Unix-based systems (".", "..")
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* Reserved filenames in Windows ("CON", "PRN", "AUX", "NUL", "COM1",
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* "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
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* "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", and
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* "LPT9") case-insesitively and with or without filename extensions.
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*
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* Capped at 255 characters in length.
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* http://unix.stackexchange.com/questions/32795/what-is-the-maximum-allowed-filename-and-folder-size-with-ecryptfs
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*
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* @param {String} input Original filename
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* @param {Object} options {replacement: String | Function }
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* @return {String} Sanitized filename
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*/
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const illegalRe = /[/?<>\\:*|"]/g;
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//var controlRe = /[x00-x1f\x80-\x9f]/g;
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const reservedRe = /^\.+$/;
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const windowsReservedRe = /^(con|prn|aux|nul|com[0-9]|lpt[0-9])(\..*)?$/i;
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const windowsTrailingRe = /[. ]+$/;
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const whitespace = /\s+/g;
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function sanitize(input: string, replacement: string) {
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if (typeof input !== "string") {
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throw new Error("Input must be string");
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}
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const sanitized = input
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.replace(whitespace, replacement)
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.replace(illegalRe, replacement)
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.replace(reservedRe, replacement)
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.replace(windowsReservedRe, replacement)
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.replace(windowsTrailingRe, replacement);
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return sanitized.slice(0, 254);
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}
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export function sanitizeFilename(
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input: string,
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options?: { replacement: string }
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) {
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const replacement = (options && options.replacement) || "";
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return sanitize(input, replacement);
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}
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