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msgpacklib

a msgpack implementation

Version vom 02.09.2022. Aktuellste Version

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greatest.deepsurf.us/scripts/450632/1088933/msgpacklib.js 

const msgpacklib = {
    reader: class {
        constructor(t, e = 0) {
            return this.buffer = t, this.dv = new DataView(this.buffer.buffer || this.buffer), this.offset = e, this
        }
        readString(t) {
            let e = (t || this.dv.getUint8(this.offset++)) - 160,
                s = "";
            for (let t = 0; t < e; t++) s += String.fromCharCode(this.dv.getUint8(this.offset++));
            return s
        }
        getArrayLegth() {
            return this.dv.getUint8(this.offset++) - 144
        }
        readData() {
            let t = this.dv.getUint8(this.offset++);
            if (t < 128) return t;
            if (t > 223) return this.dv.getInt8(this.offset - 1);
            if (192 === t) return null;
            if (195 === t) return !0;
            if (194 === t) return !1;
            if (t > 202 && t < 2010) switch (t) {
                case 203:
                    return this.offset += 8, this.dv.getFloat64(this.offset - 8);
                case 204:
                    return this.dv.getUint8(this.offset++);
                case 205:
                    return this.offset += 2, this.dv.getUint16(this.offset - 2);
                case 206:
                    return this.offset += 4, this.dv.getUint32(this.offset - 4);
                case 208:
                    return this.dv.getInt8(this.offset++);
                case 209:
                    return this.dv.getInt16((this.offset += 2) - 2)
            } else {
                if (t > 159 && t < 192) return this.readString(t);
                if (t > 143 && t < 160 || 220 === t) {
                    let e = 220 === t ? this.dv.getUint16((this.offset += 2) - 2) : t - 144,
                        s = [];
                    for (let t = 0; t < e; t++) s.push(this.readData());
                    return s
                }
                if (t > 127 && t < 144) {
                    let e = t - 128,
                        s = {};
                    for (let t = 0; t < e; t++) s[this.readString()] = this.readData();
                    return s
                }
            }
        }
    },
    writer: class {
        constructor(t = 1, e) {
            return 0 === t && (t = 1), this.offset = 0, this.buffer = new Uint8Array(t), this.dv = new DataView(this.buffer.buffer), this.setInt(146, !0), this
        }
        inflate(t = 1) {
            if (this.offset + t < this.buffer.length) return;
            let e = new Uint8Array(2 * this.buffer.length);
            this.buffer.forEach((t, s) => e[s] = t), this.buffer = e, this.dv = new DataView(this.buffer.buffer), t + this.offset >= this.buffer.length && this.inflate(t)
        }
        setFloat(t) {
            return this.inflate(8), this.dv.setFloat64(this.offset, t), this.offset += 8, this
        }
        setInt(t, e) {
            return !e && t > 127 && (this.inflate(), this.dv.setUint8(this.offset++, 204)), this.inflate(), this.dv.setUint8(this.offset++, t), this
        }
        setString(t) {
            return t.length >= 32 ? (this.setInt(217, !0), this.setInt(t.length, !0)) : this.setInt(160 + t.length, !0), t.split("").forEach(t => this.setInt(t.charCodeAt(), !0)), this
        }
        get arraybuffer() {
            return this.buffer.slice(0, this.offset)
        }
    }
};
window.msgpacklib = msgpacklib;