MiaoDaren/assets/scripts/Base64.js

var t = require;
var e = module;
var i = exports;
Object.defineProperty(i, "__esModule", {value: !0}),
    (i.Base64 = void 0),
    (i.Base64 = class {
        constructor() {
            this._keyStr = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
        }
        encode(t) {
            var e,
                i,
                s,
                o,
                a,
                n,
                r = "",
                l = 0;
            for (t = this._utf8_encode(t); l < t.length; )
                (s = (n = t.charCodeAt(l++)) >> 2),
                    (o = ((3 & n) << 4) | ((e = t.charCodeAt(l++)) >> 4)),
                    (a = ((15 & e) << 2) | ((i = t.charCodeAt(l++)) >> 6)),
                    (n = 63 & i),
                    isNaN(e) ? (a = n = 64) : isNaN(i) && (n = 64),
                    (r =
                        r +
                        this._keyStr.charAt(s) +
                        this._keyStr.charAt(o) +
                        this._keyStr.charAt(a) +
                        this._keyStr.charAt(n));
            return r;
        }
        decode(t) {
            var e,
                i,
                s,
                o,
                a,
                n = "",
                r = 0;
            for (t = t.replace(/[^A-Za-z0-9\+\/\=]/g, ""); r < t.length; )
                (e = (this._keyStr.indexOf(t.charAt(r++)) << 2) | ((s = this._keyStr.indexOf(t.charAt(r++))) >> 4)),
                    (i = ((15 & s) << 4) | ((o = this._keyStr.indexOf(t.charAt(r++))) >> 2)),
                    (s = ((3 & o) << 6) | (a = this._keyStr.indexOf(t.charAt(r++)))),
                    (n += String.fromCharCode(e)),
                    64 != o && (n += String.fromCharCode(i)),
                    64 != a && (n += String.fromCharCode(s));
            return this._utf8_decode(n);
        }
        _utf8_encode(t) {
            t = t.replace(/\r\n/g, "\n");
            for (var e = "", i = 0; i < t.length; i++) {
                var s = t.charCodeAt(i);
                s < 128
                    ? (e += String.fromCharCode(s))
                    : (127 < s && s < 2048
                          ? (e += String.fromCharCode((s >> 6) | 192))
                          : ((e += String.fromCharCode((s >> 12) | 224)),
                            (e += String.fromCharCode(((s >> 6) & 63) | 128))),
                      (e += String.fromCharCode((63 & s) | 128)));
            }
            return e;
        }
        _utf8_decode(t) {
            for (var e, i, s = "", o = 0, a = 0; o < t.length; )
                (e = t.charCodeAt(o)) < 128
                    ? ((s += String.fromCharCode(e)), o++)
                    : 191 < e && e < 224
                    ? ((a = t.charCodeAt(o + 1)), (s += String.fromCharCode(((31 & e) << 6) | (63 & a))), (o += 2))
                    : ((a = t.charCodeAt(o + 1)),
                      (i = t.charCodeAt(o + 2)),
                      (s += String.fromCharCode(((15 & e) << 12) | ((63 & a) << 6) | (63 & i))),
                      (o += 3));
            return s;
        }
    });