erfan-flmngr-server-fixed/dist/lib/file/Utils.js

> Node.js Backend for Flmngr file manager

"use strict";
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    if (k2 === undefined) k2 = k;
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    if (mod && mod.__esModule) return mod;
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Utils = void 0;
const fsx = __importStar(require("fs-extra"));
class Utils {
    static getNameWithoutExt(filename) {
        let ext = Utils.getExt(filename);
        if (ext == null)
            return filename;
        return filename.substring(0, filename.length - ext.length - 1);
    }
    static getExt(name) {
        let i = name.lastIndexOf('.');
        if (i > -1)
            return name.substring(i + 1);
        return '';
    }
    static getFreeFileName(dir, defaultName, alwaysWithIndex) {
        let ok;
        let i = alwaysWithIndex ? 0 : -1;
        let name;
        do {
            i++;
            if (i === 0)
                name = defaultName;
            else
                name = Utils.getNameWithoutExt(defaultName) + "_" + i + (Utils.getExt(defaultName) != null ? "." + Utils.getExt(defaultName) : "");
            let file = dir + name;
            ok = !fsx.existsSync(file);
        } while (!ok);
        return name;
    }
    static fixFileName(name) {
        let newName = "";
        for (let i = 0; i < name.length; i++) {
            let ch = name.substring(i, i + 1);
            if (Utils.PROHIBITED_SYMBOLS.indexOf(ch) > -1)
                ch = "_";
            newName += ch;
        }
        return newName.toString();
    }
    static isFileNameSyntaxOk(name) {
        if (name.length === 0 || name === "." || name.indexOf("..") > -1)
            return false;
        for (let i = 0; i < Utils.PROHIBITED_SYMBOLS.length; i++)
            if (name.indexOf(Utils.PROHIBITED_SYMBOLS.charAt(i)) > -1)
                return false;
        if (name.length > 260)
            return false;
        return true;
    }
    static isImage(name) {
        let exts = ["gif", "jpg", "jpeg", "png", "bmp"];
        let ext = Utils.getExt(name);
        for (let i = 0; i < exts.length; i++)
            if (exts[i] === ext)
                return true;
        return false;
    }
}
exports.Utils = Utils;
Utils.PROHIBITED_SYMBOLS = "/\\?%*:|\"<>";
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