@expressive-analytics/deep-thought-authentication/dist/DTUser.js

Typescript conversion of Deep Thought Authentication

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.DTUserModel = void 0;
const deep_thought_js_1 = require("@expressive-analytics/deep-thought-js");
const crypto = require('crypto');
const dt_password_charset = "abcdefghijkmnopqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789";
const dt_salt_charset = "abcdef0123456789";
class DTUserModel extends deep_thought_js_1.DTModel {
    encryptPassword(pass, salt) {
        if (salt === undefined)
            salt = this.generateString(5, dt_password_charset);
        salt = salt.substring(0, 10);
        const sha1 = crypto.createHash("sha1");
        sha1.update(pass + salt);
        return sha1.digest('hex').substring(salt.length) + salt; // encrypted = tail of sha1 + salt
    }
    generateString(len = 8, charset = dt_password_charset) {
        let str = "";
        for (let i = 0; i < len; i++) {
            let n = Math.random() * charset.length;
            str += charset.substring(n, 1);
        }
        return str;
    }
    verifyPassword(given, salt_len = 5) {
        const encrypted = this.$get('password'); // accessor returns null
        const salt = salt_len > 0 ? encrypted.substring(encrypted.length - salt_len, salt_len) : "";
        const password = this.encryptPassword(given, salt);
        return encrypted === password;
    }
}
exports.DTUserModel = DTUserModel;
DTUserModel.$T = "user";
DTUserModel._strict_properties = true;