simp-node-auth/lib/base64.js

node-web密码加密

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var Base64 = /** @class */ (function () {
    function Base64() {
        // 定义私钥
        this.privateKey =
            'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
    }
    /**
     * @Description: 定义一个密码加密的方法
     * @param {String}
     * @return:
     */
    Base64.prototype.encode = function (input) {
        var output = '';
        var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
        var i = 0;
        input = this.utf8_encode(input);
        while (i < input.length) {
            chr1 = input.charCodeAt(i++);
            chr2 = input.charCodeAt(i++);
            chr3 = input.charCodeAt(i++);
            enc1 = chr1 >> 2;
            enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
            enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
            enc4 = chr3 & 63;
            if (isNaN(chr2)) {
                enc3 = enc4 = 64;
            }
            else if (isNaN(chr3)) {
                enc4 = 64;
            }
            output =
                output +
                    this.privateKey.charAt(enc1) +
                    this.privateKey.charAt(enc2) +
                    this.privateKey.charAt(enc3) +
                    this.privateKey.charAt(enc4);
        }
        return output;
    };
    /**
     * @Description: 定义解密的方法
     * @param {type}
     * @return:
     */
    Base64.prototype.decode = function (input) {
        var output = '';
        var chr1, chr2, chr3;
        var enc1, enc2, enc3, enc4;
        var i = 0;
        input = input.replace(/[^A-Za-z0-9\+\/\=]/g, '');
        while (i < input.length) {
            enc1 = this.privateKey.indexOf(input.charAt(i++));
            enc2 = this.privateKey.indexOf(input.charAt(i++));
            enc3 = this.privateKey.indexOf(input.charAt(i++));
            enc4 = this.privateKey.indexOf(input.charAt(i++));
            chr1 = (enc1 << 2) | (enc2 >> 4);
            chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
            chr3 = ((enc3 & 3) << 6) | enc4;
            output = output + String.fromCharCode(chr1);
            if (enc3 != 64) {
                output = output + String.fromCharCode(chr2);
            }
            if (enc4 != 64) {
                output = output + String.fromCharCode(chr3);
            }
        }
        output = this.utf8_decode(output);
        return output;
    };
    /**
     * @Description: 加密时候转码方法
     * @param {type}
     * @return:
     */
    // eslint-disable-next-line @typescript-eslint/camelcase
    Base64.prototype.utf8_encode = function (params) {
        var string = params.replace(/\r\n/g, '\n');
        var utftext = '';
        for (var n = 0; n < string.length; n++) {
            var c = string.charCodeAt(n);
            if (c < 128) {
                utftext += String.fromCharCode(c);
            }
            else if (c > 127 && c < 2048) {
                utftext += String.fromCharCode((c >> 6) | 192);
                utftext += String.fromCharCode((c & 63) | 128);
            }
            else {
                utftext += String.fromCharCode((c >> 12) | 224);
                utftext += String.fromCharCode(((c >> 6) & 63) | 128);
                utftext += String.fromCharCode((c & 63) | 128);
            }
        }
        return utftext;
    };
    /**
     * @Description: 解密的转码方法
     * @param {type}
     * @return:
     */
    // eslint-disable-next-line @typescript-eslint/camelcase
    Base64.prototype.utf8_decode = function (utftext) {
        var string = '';
        var i = 0;
        var c = 0;
        var c2 = 0;
        var c3 = 0;
        while (i < utftext.length) {
            c = utftext.charCodeAt(i);
            if (c < 128) {
                string += String.fromCharCode(c);
                i++;
            }
            else if (c > 191 && c < 224) {
                c2 = utftext.charCodeAt(i + 1);
                string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
                i += 2;
            }
            else {
                c2 = utftext.charCodeAt(i + 1);
                c3 = utftext.charCodeAt(i + 2);
                string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
                i += 3;
            }
        }
        return string;
    };
    return Base64;
}());
exports.default = new Base64();