@jsprismarine/nbt
Version:
Minecraft: Bedrock Edition NBT parser/writer
90 lines (89 loc) • 12.7 kB
JavaScript
import { ByteOrder } from "./ByteOrder.es.js";
import ByteValue from "./types/ByteVal.es.js";
import DoubleValue from "./types/DoubleVal.es.js";
import FloatValue from "./types/FloatVal.es.js";
import LongValue from "./types/LongVal.es.js";
import NumberValue from "./types/NumberVal.es.js";
import ShortValue from "./types/ShortVal.es.js";
import StringValue from "./types/StringVal.es.js";
//#region src/NBTStreamReader.ts
var NBTStreamReader = class {
input;
byteOrder;
useVarint = false;
allocateLimit = -1;
constructor(input, byteOrder) {
this.input = input;
this.byteOrder = byteOrder;
}
isUsingVarint() {
return this.useVarint;
}
setUseVarint(useVarint) {
this.useVarint = useVarint;
}
setAllocateLimit(allocateLimit) {
this.allocateLimit = allocateLimit;
}
readByteValue() {
this.expectInput(1, "Invalid NBT Data: Expected byte");
return new ByteValue(this.input.readByte());
}
readStringValue() {
const length = this.useVarint ? this.input.readUnsignedVarInt() : this.readShortValue().getValue();
this.expectInput(length, "Invalid NBT Data: Expected string bytes");
return new StringValue(this.input.read(length).toString("utf8"));
}
readShortValue() {
this.expectInput(2, "Invalid NBT Data: Expected short");
if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) return new ShortValue(this.input.readShortLE());
return new ShortValue(this.input.readShort());
}
readIntValue() {
if (this.useVarint) return new NumberValue(this.input.readVarInt());
this.expectInput(4, "Invalid NBT Data: Expected int");
if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) return new NumberValue(this.input.readIntLE());
return new NumberValue(this.input.readInt());
}
readLongValue() {
if (this.useVarint) return new LongValue(this.input.readVarLong());
this.expectInput(8, "Invalid NBT Data: Expected long");
if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) return new LongValue(this.input.readLongLE());
return new LongValue(this.input.readLong());
}
readFloatValue() {
this.expectInput(4, "Invalid NBT Data: Expected long");
if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) return new FloatValue(this.input.readFloatLE());
return new FloatValue(this.input.readFloat());
}
readDoubleValue() {
this.expectInput(8, "Invalid NBT Data: Expected double");
if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) return new DoubleValue(this.input.readDoubleLE());
return new DoubleValue(this.input.readDouble());
}
readByteArrayValue() {
const size = this.readIntValue().getValue();
this.expectInput(size, "Invalid NBT Data: Expected byte array data");
return this.input.read(size);
}
readIntArrayValue() {
const size = this.readIntValue().getValue();
this.expectInput(this.isUsingVarint() ? size : size * 4, "Invalid NBT Data: Expected int array data");
const result = [];
for (let i = 0; i < size; i++) result.push(this.readIntValue().getValue());
return result;
}
expectInput(remaining, message, alterAllocationLimit = true) {
if (alterAllocationLimit) this.alterAllocationLimit(remaining);
const length = this.input.readRemaining().byteLength;
this.input.skip(-length);
if (length < remaining) throw new Error(message);
}
alterAllocationLimit(remaining) {
if (this.allocateLimit !== -1) if (this.allocateLimit - remaining < 0) throw new Error("Could not allocate more bytes due to reaching the set limit");
else this.allocateLimit -= remaining;
}
};
//#endregion
export { NBTStreamReader as default };
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"file":"NBTStreamReader.es.js","names":[],"sources":["../src/NBTStreamReader.ts"],"sourcesContent":["import type BinaryStream from '@jsprismarine/jsbinaryutils';\nimport { ByteOrder } from './ByteOrder';\nimport ByteVal from './types/ByteVal';\nimport DoubleVal from './types/DoubleVal';\nimport FloatVal from './types/FloatVal';\nimport LongVal from './types/LongVal';\nimport NumberVal from './types/NumberVal';\nimport ShortVal from './types/ShortVal';\nimport StringVal from './types/StringVal';\n\nexport default class NBTStreamReader {\n    protected input: BinaryStream;\n    protected byteOrder: ByteOrder;\n\n    private useVarint = false;\n    private allocateLimit = -1;\n\n    protected constructor(input: any, byteOrder: ByteOrder) {\n        this.input = input;\n        this.byteOrder = byteOrder;\n    }\n\n    public isUsingVarint(): boolean {\n        return this.useVarint;\n    }\n\n    public setUseVarint(useVarint: boolean): void {\n        this.useVarint = useVarint;\n    }\n\n    public setAllocateLimit(allocateLimit: number): void {\n        this.allocateLimit = allocateLimit;\n    }\n\n    protected readByteValue(): ByteVal {\n        this.expectInput(1, 'Invalid NBT Data: Expected byte');\n        return new ByteVal(this.input.readByte());\n    }\n\n    protected readStringValue(): StringVal {\n        const length: number = this.useVarint ? this.input.readUnsignedVarInt() : this.readShortValue().getValue();\n        this.expectInput(length, 'Invalid NBT Data: Expected string bytes');\n\n        const data: Buffer = this.input.read(length);\n\n        return new StringVal(data.toString('utf8'));\n    }\n\n    protected readShortValue(): ShortVal {\n        this.expectInput(2, 'Invalid NBT Data: Expected short');\n\n        if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) {\n            return new ShortVal(this.input.readShortLE());\n        }\n\n        return new ShortVal(this.input.readShort());\n    }\n\n    protected readIntValue(): NumberVal {\n        if (this.useVarint) {\n            return new NumberVal(this.input.readVarInt());\n        }\n\n        this.expectInput(4, 'Invalid NBT Data: Expected int');\n\n        if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) {\n            return new NumberVal(this.input.readIntLE());\n        }\n\n        return new NumberVal(this.input.readInt());\n    }\n\n    protected readLongValue(): LongVal {\n        if (this.useVarint) {\n            return new LongVal(this.input.readVarLong());\n        }\n\n        this.expectInput(8, 'Invalid NBT Data: Expected long');\n\n        if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) {\n            return new LongVal(this.input.readLongLE());\n        }\n\n        return new LongVal(this.input.readLong());\n    }\n\n    protected readFloatValue(): FloatVal {\n        this.expectInput(4, 'Invalid NBT Data: Expected long');\n\n        if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) {\n            return new FloatVal(this.input.readFloatLE());\n        }\n\n        return new FloatVal(this.input.readFloat());\n    }\n\n    protected readDoubleValue(): DoubleVal {\n        this.expectInput(8, 'Invalid NBT Data: Expected double');\n\n        if (this.byteOrder === ByteOrder.LITTLE_ENDIAN) {\n            return new DoubleVal(this.input.readDoubleLE());\n        }\n\n        return new DoubleVal(this.input.readDouble());\n    }\n\n    protected readByteArrayValue(): Buffer {\n        const size: number = this.readIntValue().getValue();\n        this.expectInput(size, 'Invalid NBT Data: Expected byte array data');\n        return this.input.read(size);\n    }\n\n    protected readIntArrayValue(): number[] {\n        const size: number = this.readIntValue().getValue();\n        this.expectInput(this.isUsingVarint() ? size : size * 4, 'Invalid NBT Data: Expected int array data');\n        const result: number[] = [];\n        for (let i = 0; i < size; i++) {\n            result.push(this.readIntValue().getValue());\n        }\n\n        return result;\n    }\n\n    protected expectInput(remaining: number, message: string, alterAllocationLimit = true): void {\n        if (alterAllocationLimit) {\n            this.alterAllocationLimit(remaining);\n        }\n\n        const length = this.input.readRemaining().byteLength;\n        this.input.skip(-length);\n        if (length < remaining) {\n            throw new Error(message);\n        }\n    }\n\n    public alterAllocationLimit(remaining: number): void {\n        if (this.allocateLimit !== -1) {\n            if (this.allocateLimit - remaining < 0) {\n                throw new Error('Could not allocate more bytes due to reaching the set limit');\n            } else {\n                this.allocateLimit -= remaining;\n            }\n        }\n    }\n}\n"],"mappings":";;;;;;;;;AAUA,IAAqB,kBAArB,MAAqC;CACjC;CACA;CAEA,YAAoB;CACpB,gBAAwB;CAExB,YAAsB,OAAY,WAAsB;EACpD,KAAK,QAAQ;EACb,KAAK,YAAY;CACrB;CAEA,gBAAgC;EAC5B,OAAO,KAAK;CAChB;CAEA,aAAoB,WAA0B;EAC1C,KAAK,YAAY;CACrB;CAEA,iBAAwB,eAA6B;EACjD,KAAK,gBAAgB;CACzB;CAEA,gBAAmC;EAC/B,KAAK,YAAY,GAAG,iCAAiC;EACrD,OAAO,IAAI,UAAQ,KAAK,MAAM,SAAS,CAAC;CAC5C;CAEA,kBAAuC;EACnC,MAAM,SAAiB,KAAK,YAAY,KAAK,MAAM,mBAAmB,IAAI,KAAK,eAAe,EAAE,SAAS;EACzG,KAAK,YAAY,QAAQ,yCAAyC;EAIlE,OAAO,IAAI,YAFU,KAAK,MAAM,KAAK,MAEhB,EAAK,SAAS,MAAM,CAAC;CAC9C;CAEA,iBAAqC;EACjC,KAAK,YAAY,GAAG,kCAAkC;EAEtD,IAAI,KAAK,cAAc,UAAU,eAC7B,OAAO,IAAI,WAAS,KAAK,MAAM,YAAY,CAAC;EAGhD,OAAO,IAAI,WAAS,KAAK,MAAM,UAAU,CAAC;CAC9C;CAEA,eAAoC;EAChC,IAAI,KAAK,WACL,OAAO,IAAI,YAAU,KAAK,MAAM,WAAW,CAAC;EAGhD,KAAK,YAAY,GAAG,gCAAgC;EAEpD,IAAI,KAAK,cAAc,UAAU,eAC7B,OAAO,IAAI,YAAU,KAAK,MAAM,UAAU,CAAC;EAG/C,OAAO,IAAI,YAAU,KAAK,MAAM,QAAQ,CAAC;CAC7C;CAEA,gBAAmC;EAC/B,IAAI,KAAK,WACL,OAAO,IAAI,UAAQ,KAAK,MAAM,YAAY,CAAC;EAG/C,KAAK,YAAY,GAAG,iCAAiC;EAErD,IAAI,KAAK,cAAc,UAAU,eAC7B,OAAO,IAAI,UAAQ,KAAK,MAAM,WAAW,CAAC;EAG9C,OAAO,IAAI,UAAQ,KAAK,MAAM,SAAS,CAAC;CAC5C;CAEA,iBAAqC;EACjC,KAAK,YAAY,GAAG,iCAAiC;EAErD,IAAI,KAAK,cAAc,UAAU,eAC7B,OAAO,IAAI,WAAS,KAAK,MAAM,YAAY,CAAC;EAGhD,OAAO,IAAI,WAAS,KAAK,MAAM,UAAU,CAAC;CAC9C;CAEA,kBAAuC;EACnC,KAAK,YAAY,GAAG,mCAAmC;EAEvD,IAAI,KAAK,cAAc,UAAU,eAC7B,OAAO,IAAI,YAAU,KAAK,MAAM,aAAa,CAAC;EAGlD,OAAO,IAAI,YAAU,KAAK,MAAM,WAAW,CAAC;CAChD;CAEA,qBAAuC;EACnC,MAAM,OAAe,KAAK,aAAa,EAAE,SAAS;EAClD,KAAK,YAAY,MAAM,4CAA4C;EACnE,OAAO,KAAK,MAAM,KAAK,IAAI;CAC/B;CAEA,oBAAwC;EACpC,MAAM,OAAe,KAAK,aAAa,EAAE,SAAS;EAClD,KAAK,YAAY,KAAK,cAAc,IAAI,OAAO,OAAO,GAAG,2CAA2C;EACpG,MAAM,SAAmB,CAAC;EAC1B,KAAK,IAAI,IAAI,GAAG,IAAI,MAAM,KACtB,OAAO,KAAK,KAAK,aAAa,EAAE,SAAS,CAAC;EAG9C,OAAO;CACX;CAEA,YAAsB,WAAmB,SAAiB,uBAAuB,MAAY;EACzF,IAAI,sBACA,KAAK,qBAAqB,SAAS;EAGvC,MAAM,SAAS,KAAK,MAAM,cAAc,EAAE;EAC1C,KAAK,MAAM,KAAK,CAAC,MAAM;EACvB,IAAI,SAAS,WACT,MAAM,IAAI,MAAM,OAAO;CAE/B;CAEA,qBAA4B,WAAyB;EACjD,IAAI,KAAK,kBAAkB,IACvB,IAAI,KAAK,gBAAgB,YAAY,GACjC,MAAM,IAAI,MAAM,6DAA6D;OAE7E,KAAK,iBAAiB;CAGlC;AACJ"}