eufy-security-client
Version:
Client to comunicate with Eufy-Security devices
280 lines • 11.1 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.BleCommandFactory = exports.BleParameterIndex = void 0;
const error_1 = require("./error");
var BleParameterIndex;
(function (BleParameterIndex) {
BleParameterIndex[BleParameterIndex["ZERO"] = -96] = "ZERO";
BleParameterIndex[BleParameterIndex["ONE"] = -95] = "ONE";
BleParameterIndex[BleParameterIndex["TWO"] = -94] = "TWO";
BleParameterIndex[BleParameterIndex["THREE"] = -93] = "THREE";
BleParameterIndex[BleParameterIndex["FOUR"] = -92] = "FOUR";
BleParameterIndex[BleParameterIndex["FIVE"] = -91] = "FIVE";
BleParameterIndex[BleParameterIndex["SIX"] = -90] = "SIX";
BleParameterIndex[BleParameterIndex["SEVEN"] = -89] = "SEVEN";
BleParameterIndex[BleParameterIndex["EIGHT"] = -88] = "EIGHT";
BleParameterIndex[BleParameterIndex["NINE"] = -87] = "NINE";
BleParameterIndex[BleParameterIndex["TEN"] = -86] = "TEN";
BleParameterIndex[BleParameterIndex["ELEVEN"] = -85] = "ELEVEN";
BleParameterIndex[BleParameterIndex["TWELVE"] = -84] = "TWELVE";
BleParameterIndex[BleParameterIndex["THIRTEEN"] = -83] = "THIRTEEN";
})(BleParameterIndex || (exports.BleParameterIndex = BleParameterIndex = {}));
class BleCommandFactory {
static HEADER = Buffer.from([-1, 9]);
data;
commandCode;
versionCode;
dataType;
packageFlag;
unknown;
additionalDataSeparatorByte;
additionalData;
responseCode;
encrypted;
partial;
static parseLockV12(data) {
if (typeof data === "string") {
data = Buffer.from(data, "hex");
}
if (data.readInt8(0) !== BleCommandFactory.HEADER[0] && data.readInt8(1) !== BleCommandFactory.HEADER[1]) {
throw new error_1.BleInvalidDataHeaderError("Invalid BLE data header");
}
const fac = new BleCommandFactory();
fac.setVersionCode(data.readUint8(4));
fac.setCommandCode(data.readUint8(6));
fac.setDataType(data.readUint8());
fac.setPackageFlag(data.readInt8(7));
fac.setResponseCode(fac.getPackageFlag() === -64 ? data.readUint8(8) : data.readUint8(12));
fac.setData(data.subarray(fac.getPackageFlag() === -64 ? 8 : 12, data.length - 1)); //TODO: Verify if position 8 is correct for data (i think it should be 9 or 13)...
if (BleCommandFactory.generateHash(data.subarray(0, data.length - 1)) !== data.readUint8(data.length - 1)) {
throw new error_1.BleInvalidChecksumError("Invalid BLE data, checksum mismatch");
}
return fac;
}
static parseSmartSafe(data) {
return BleCommandFactory.parseLockV12(data);
}
static parseSmartLock(data) {
if (typeof data === "string") {
data = Buffer.from(data, "hex");
}
if (data.length < 9 || (data.readInt8(0) !== BleCommandFactory.HEADER[0] && data.readInt8(1) !== BleCommandFactory.HEADER[1])) {
throw new error_1.BleInvalidDataHeaderError("Invalid BLE data header");
}
if (BleCommandFactory.generateHash(data.subarray(0, data.length - 1)) !== data.readUint8(data.length - 1)) {
throw new error_1.BleInvalidChecksumError("Invalid BLE data, checksum mismatch");
}
const fac = new BleCommandFactory();
const flags = data.readUint16BE(7);
fac.setVersionCode(data.readUint8(4));
fac.setDataType(data.readUint8(6));
fac.setPartial((flags >> 15) === 1);
fac.setEncrypted(((flags << 1) >> 15) === 1);
fac.setCommandCode(((flags << 4) & 32767) >> 4);
fac.setData(data.subarray(9, data.length - 1));
return fac;
}
toString = () => {
return `BleCommandFactory (versionCode: ${this.versionCode} commandCode: ${this.commandCode} dataType: ${this.dataType} partial: ${this.partial} encrypted: ${this.encrypted} data: ${this.data?.toString("hex")} packageFlag: ${this.packageFlag} responseCode: ${this.responseCode})`;
};
setResponseCode(code) {
this.responseCode = code;
}
getResponseCode() {
return this.responseCode;
}
setVersionCode(version) {
this.versionCode = version;
return this;
}
getVersionCode() {
return this.versionCode;
}
setCommandCode(command) {
this.commandCode = command;
return this;
}
getCommandCode() {
return this.commandCode;
}
setDataType(type) {
this.dataType = type;
return this;
}
getDataType() {
return this.dataType;
}
setPackageFlag(flag) {
this.packageFlag = flag;
return this;
}
getPackageFlag() {
return this.packageFlag;
}
setAdditionalDataSeparator(separator) {
this.additionalDataSeparatorByte = Buffer.from([separator]);
return this;
}
getAdditionalDataSeparator() {
return this.additionalDataSeparatorByte;
}
setAdditionalData(data) {
this.additionalData = data;
return this;
}
getAdditionalData() {
return this.additionalData;
}
setData(data) {
this.data = data;
return this;
}
getData() {
return this.data;
}
setUnknown(data) {
this.unknown = data;
return this;
}
static generateHash(data) {
let result = 0;
for (const value of data) {
result = result ^ value;
}
return result;
}
isEncrypted() {
return this.encrypted;
}
setEncrypted(encrypted) {
this.encrypted = encrypted;
return this;
}
isPartial() {
return this.partial;
}
setPartial(partial) {
this.partial = partial;
return this;
}
getLockV12Command() {
if (this.versionCode === undefined)
throw new error_1.BleVersionCodeError("BleCommandFactory version code value missing");
if (this.dataType === undefined)
throw new error_1.BleDataTypeError("BleCommandFactory data type value missing");
if (this.commandCode === undefined)
throw new error_1.BleCommandCodeError("BleCommandFactory command code value missing");
if (this.data === undefined)
throw new error_1.BleDataError("BleCommandFactory data value missing");
if (this.additionalData === undefined)
throw new error_1.BleAdditionalDataError("BleCommandFactory additional data value missing");
this.setAdditionalDataSeparator(BleParameterIndex.ZERO);
const bVersionCode = Buffer.from([this.versionCode]);
const bDataType = Buffer.from([this.dataType]);
const bCommandCode = Buffer.from([this.commandCode]);
const bPackageFlag = this.packageFlag === undefined ? Buffer.from([-64]) : Buffer.from([this.packageFlag]);
const bAdditionalDataLength = Buffer.from([this.additionalData.length]);
const size = Buffer.allocUnsafe(2);
size.writeInt16LE(BleCommandFactory.HEADER.length +
size.length +
bVersionCode.length +
bDataType.length +
bCommandCode.length +
bPackageFlag.length +
this.additionalDataSeparatorByte.length +
bAdditionalDataLength.length +
this.additionalData.length +
this.data.length +
1 // Hash
);
const data = Buffer.concat([
BleCommandFactory.HEADER,
size,
bVersionCode,
bDataType,
bCommandCode,
bPackageFlag,
this.additionalDataSeparatorByte,
bAdditionalDataLength,
this.additionalData,
this.data
]);
const hash = BleCommandFactory.generateHash(data);
return Buffer.concat([data, Buffer.from([hash])]);
}
getSmartSafeCommand() {
if (this.versionCode === undefined)
throw new error_1.BleVersionCodeError("BleCommandFactory version code value missing");
if (this.dataType === undefined)
throw new error_1.BleDataTypeError("BleCommandFactory data type value missing");
if (this.commandCode === undefined)
throw new error_1.BleCommandCodeError("BleCommandFactory command code value missing");
if (this.data === undefined)
throw new error_1.BleDataError("BleCommandFactory data value missing");
const bVersionCode = Buffer.from([this.versionCode]);
const bDataType = Buffer.from([this.dataType]);
const bCommandCode = Buffer.from([this.commandCode]);
const bPackageFlag = this.packageFlag === undefined ? Buffer.from([-64]) : Buffer.from([this.packageFlag]);
const size = Buffer.allocUnsafe(2);
size.writeInt16LE(BleCommandFactory.HEADER.length +
size.length +
bVersionCode.length +
bDataType.length +
bCommandCode.length +
bPackageFlag.length +
this.data.length +
1 // Hash
);
const data = Buffer.concat([
BleCommandFactory.HEADER,
size,
bVersionCode,
bDataType,
bCommandCode,
bPackageFlag,
this.data
]);
const hash = BleCommandFactory.generateHash(data);
return Buffer.concat([data, Buffer.from([hash])]);
}
getSmartLockCommand() {
if (this.versionCode === undefined)
throw new error_1.BleVersionCodeError("BleCommandFactory version code value missing");
if (this.dataType === undefined)
throw new error_1.BleDataTypeError("BleCommandFactory data type value missing");
if (this.commandCode === undefined)
throw new error_1.BleCommandCodeError("BleCommandFactory command code value missing");
if (this.data === undefined)
throw new error_1.BleDataError("BleCommandFactory data value missing");
const bVersionCode = Buffer.from([this.versionCode]);
const bDataType = Buffer.from([this.dataType]);
const unknown = Buffer.alloc(1);
const partial = false;
const encrypted = true;
const commandCodeEncoded = Buffer.allocUnsafe(2);
commandCodeEncoded.writeInt16BE(((partial ? 1 : 0) << 15) + ((encrypted ? 1 : 0) << 14) + this.commandCode);
const size = Buffer.allocUnsafe(2);
size.writeInt16LE(BleCommandFactory.HEADER.length +
size.length +
bVersionCode.length +
unknown.length +
bDataType.length +
commandCodeEncoded.length +
this.data.length +
1 // Hash
);
const data = Buffer.concat([
BleCommandFactory.HEADER,
size,
bVersionCode,
unknown,
bDataType,
commandCodeEncoded,
this.data
]);
const hash = BleCommandFactory.generateHash(data);
return Buffer.concat([data, Buffer.from([hash])]);
}
}
exports.BleCommandFactory = BleCommandFactory;
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