@vuept/loopback-connector-mssql
Version:
Microsoft SQL Server connector for LoopBack
305 lines (284 loc) • 11.9 kB
JavaScript
'use strict';
var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');
var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);
var _createClass2 = require('babel-runtime/helpers/createClass');
var _createClass3 = _interopRequireDefault(_createClass2);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var WritableTrackingBuffer = require('./tracking-buffer/writable-tracking-buffer');
var os = require('os');
var sprintf = require('sprintf-js').sprintf;
var libraryName = require('./library').name;
var versions = require('./tds-versions').versions;
var FLAGS_1 = {
ENDIAN_LITTLE: 0x00,
ENDIAN_BIG: 0x01,
CHARSET_ASCII: 0x00,
CHARSET_EBCDIC: 0x02,
FLOAT_IEEE_754: 0x00,
FLOAT_VAX: 0x04,
FLOAT_ND5000: 0x08,
BCP_DUMPLOAD_ON: 0x00,
BCP_DUMPLOAD_OFF: 0x10,
USE_DB_ON: 0x00,
USE_DB_OFF: 0x20,
INIT_DB_WARN: 0x00,
INIT_DB_FATAL: 0x40,
SET_LANG_WARN_OFF: 0x00,
SET_LANG_WARN_ON: 0x80
};
var FLAGS_2 = {
INIT_LANG_WARN: 0x00,
INIT_LANG_FATAL: 0x01,
ODBC_OFF: 0x00,
ODBC_ON: 0x02,
F_TRAN_BOUNDARY: 0x04,
F_CACHE_CONNECT: 0x08,
USER_NORMAL: 0x00,
USER_SERVER: 0x10,
USER_REMUSER: 0x20,
USER_SQLREPL: 0x40,
INTEGRATED_SECURITY_OFF: 0x00,
INTEGRATED_SECURITY_ON: 0x80
};
var TYPE_FLAGS = {
SQL_DFLT: 0x00,
SQL_TSQL: 0x08,
OLEDB_OFF: 0x00,
OLEDB_ON: 0x10,
READ_WRITE_INTENT: 0x00,
READ_ONLY_INTENT: 0x20
};
var FLAGS_3 = {
CHANGE_PASSWORD_NO: 0x00,
CHANGE_PASSWORD_YES: 0x01,
BINARY_XML: 0x02,
SPAWN_USER_INSTANCE: 0x04,
UNKNOWN_COLLATION_HANDLING: 0x08
};
var NTLMFlags = {
NTLM_NegotiateUnicode: 0x00000001,
NTLM_NegotiateOEM: 0x00000002,
NTLM_RequestTarget: 0x00000004,
NTLM_Unknown9: 0x00000008,
NTLM_NegotiateSign: 0x00000010,
NTLM_NegotiateSeal: 0x00000020,
NTLM_NegotiateDatagram: 0x00000040,
NTLM_NegotiateLanManagerKey: 0x00000080,
NTLM_Unknown8: 0x00000100,
NTLM_NegotiateNTLM: 0x00000200,
NTLM_NegotiateNTOnly: 0x00000400,
NTLM_Anonymous: 0x00000800,
NTLM_NegotiateOemDomainSupplied: 0x00001000,
NTLM_NegotiateOemWorkstationSupplied: 0x00002000,
NTLM_Unknown6: 0x00004000,
NTLM_NegotiateAlwaysSign: 0x00008000,
NTLM_TargetTypeDomain: 0x00010000,
NTLM_TargetTypeServer: 0x00020000,
NTLM_TargetTypeShare: 0x00040000,
NTLM_NegotiateExtendedSecurity: 0x00080000,
NTLM_NegotiateIdentify: 0x00100000,
NTLM_Unknown5: 0x00200000,
NTLM_RequestNonNTSessionKey: 0x00400000,
NTLM_NegotiateTargetInfo: 0x00800000,
NTLM_Unknown4: 0x01000000,
NTLM_NegotiateVersion: 0x02000000,
NTLM_Unknown3: 0x04000000,
NTLM_Unknown2: 0x08000000,
NTLM_Unknown1: 0x10000000,
NTLM_Negotiate128: 0x20000000,
NTLM_NegotiateKeyExchange: 0x40000000,
NTLM_Negotiate56: 0x80000000
};
/*
s2.2.6.3
*/
module.exports = function () {
function Login7Payload(loginData) {
(0, _classCallCheck3.default)(this, Login7Payload);
this.loginData = loginData;
var lengthLength = 4;
var fixed = this.createFixedData();
var variable = this.createVariableData(lengthLength + fixed.length);
var length = lengthLength + fixed.length + variable.length;
var data = new WritableTrackingBuffer(300);
data.writeUInt32LE(length);
data.writeBuffer(fixed);
data.writeBuffer(variable);
this.data = data.data;
}
(0, _createClass3.default)(Login7Payload, [{
key: 'createFixedData',
value: function createFixedData() {
this.tdsVersion = versions[this.loginData.tdsVersion];
this.packetSize = this.loginData.packetSize;
this.clientProgVer = 0;
this.clientPid = process.pid;
this.connectionId = 0;
this.clientTimeZone = new Date().getTimezoneOffset();
this.clientLcid = 0x00000409;
this.flags1 = FLAGS_1.ENDIAN_LITTLE | FLAGS_1.CHARSET_ASCII | FLAGS_1.FLOAT_IEEE_754 | FLAGS_1.BCD_DUMPLOAD_OFF | FLAGS_1.USE_DB_OFF | FLAGS_1.SET_LANG_WARN_ON;
if (this.loginData.initDbFatal) {
this.flags1 |= FLAGS_1.INIT_DB_FATAL;
} else {
this.flags1 |= FLAGS_1.INIT_DB_WARN;
}
this.flags2 = FLAGS_2.INIT_LANG_WARN | FLAGS_2.ODBC_OFF | FLAGS_2.USER_NORMAL;
if (this.loginData.domain) {
this.flags2 |= FLAGS_2.INTEGRATED_SECURITY_ON;
} else {
this.flags2 |= FLAGS_2.INTEGRATED_SECURITY_OFF;
}
this.flags3 = FLAGS_3.CHANGE_PASSWORD_NO | FLAGS_3.UNKNOWN_COLLATION_HANDLING;
this.typeFlags = TYPE_FLAGS.SQL_DFLT | TYPE_FLAGS.OLEDB_OFF;
if (this.loginData.readOnlyIntent) {
this.typeFlags |= TYPE_FLAGS.READ_ONLY_INTENT;
} else {
this.typeFlags |= TYPE_FLAGS.READ_WRITE_INTENT;
}
var buffer = new WritableTrackingBuffer(100);
buffer.writeUInt32LE(this.tdsVersion);
buffer.writeUInt32LE(this.packetSize);
buffer.writeUInt32LE(this.clientProgVer);
buffer.writeUInt32LE(this.clientPid);
buffer.writeUInt32LE(this.connectionId);
buffer.writeUInt8(this.flags1);
buffer.writeUInt8(this.flags2);
buffer.writeUInt8(this.typeFlags);
buffer.writeUInt8(this.flags3);
buffer.writeInt32LE(this.clientTimeZone);
buffer.writeUInt32LE(this.clientLcid);
return buffer.data;
}
}, {
key: 'createVariableData',
value: function createVariableData(offset) {
this.variableLengthsLength = 9 * 4 + 6 + 3 * 4 + 4;
if (this.loginData.tdsVersion === '7_1') {
this.variableLengthsLength = 9 * 4 + 6 + 2 * 4;
}
var variableData = {
offsetsAndLengths: new WritableTrackingBuffer(200),
data: new WritableTrackingBuffer(200, 'ucs2'),
offset: offset + this.variableLengthsLength
};
this.hostname = os.hostname();
this.loginData = this.loginData || {};
this.loginData.appName = this.loginData.appName || 'Tedious';
this.libraryName = libraryName;
this.clientId = new Buffer([1, 2, 3, 4, 5, 6]);
if (!this.loginData.domain) {
this.sspi = '';
this.sspiLong = 0;
}
this.attachDbFile = '';
this.changePassword = '';
this.addVariableDataString(variableData, this.hostname);
this.addVariableDataString(variableData, this.loginData.domain ? '' : this.loginData.userName);
this.addVariableDataBuffer(variableData, this.loginData.domain ? Buffer.alloc(0) : this.createPasswordBuffer());
this.addVariableDataString(variableData, this.loginData.appName);
this.addVariableDataString(variableData, this.loginData.serverName);
this.addVariableDataString(variableData, '');
this.addVariableDataString(variableData, this.libraryName);
this.addVariableDataString(variableData, this.loginData.language);
this.addVariableDataString(variableData, this.loginData.database);
variableData.offsetsAndLengths.writeBuffer(this.clientId);
if (this.loginData.domain) {
if (this.loginData.sspiBlob) {
this.ntlmPacket = this.loginData.sspiBlob;
} else {
this.ntlmPacket = this.createNTLMRequest(this.loginData);
}
this.sspiLong = this.ntlmPacket.length;
variableData.offsetsAndLengths.writeUInt16LE(variableData.offset);
variableData.offsetsAndLengths.writeUInt16LE(this.ntlmPacket.length);
variableData.data.writeBuffer(this.ntlmPacket);
variableData.offset += this.ntlmPacket.length;
} else {
this.addVariableDataString(variableData, this.sspi);
}
this.addVariableDataString(variableData, this.attachDbFile);
if (this.loginData.tdsVersion > '7_1') {
this.addVariableDataString(variableData, this.changePassword);
variableData.offsetsAndLengths.writeUInt32LE(this.sspiLong);
}
return Buffer.concat([variableData.offsetsAndLengths.data, variableData.data.data]);
}
}, {
key: 'addVariableDataBuffer',
value: function addVariableDataBuffer(variableData, buffer) {
variableData.offsetsAndLengths.writeUInt16LE(variableData.offset);
variableData.offsetsAndLengths.writeUInt16LE(buffer.length / 2);
variableData.data.writeBuffer(buffer);
return variableData.offset += buffer.length;
}
}, {
key: 'addVariableDataString',
value: function addVariableDataString(variableData, value) {
value || (value = '');
variableData.offsetsAndLengths.writeUInt16LE(variableData.offset);
variableData.offsetsAndLengths.writeUInt16LE(value.length);
variableData.data.writeString(value);
return variableData.offset += value.length * 2;
}
}, {
key: 'createNTLMRequest',
value: function createNTLMRequest(options) {
var domain = escape(options.domain.toUpperCase());
var workstation = options.workstation ? escape(options.workstation.toUpperCase()) : '';
var protocol = 'NTLMSSP\u0000';
var BODY_LENGTH = 40;
var bufferLength = BODY_LENGTH + domain.length;
var buffer = new WritableTrackingBuffer(bufferLength);
var type1flags = this.getNTLMFlags();
if (workstation === '') {
type1flags -= NTLMFlags.NTLM_NegotiateOemWorkstationSupplied;
}
buffer.writeString(protocol, 'utf8');
buffer.writeUInt32LE(1);
buffer.writeUInt32LE(type1flags);
buffer.writeUInt16LE(domain.length);
buffer.writeUInt16LE(domain.length);
buffer.writeUInt32LE(BODY_LENGTH + workstation.length);
buffer.writeUInt16LE(workstation.length);
buffer.writeUInt16LE(workstation.length);
buffer.writeUInt32LE(BODY_LENGTH);
buffer.writeUInt8(5);
buffer.writeUInt8(0);
buffer.writeUInt16LE(2195);
buffer.writeUInt8(0);
buffer.writeUInt8(0);
buffer.writeUInt8(0);
buffer.writeUInt8(15);
buffer.writeString(workstation, 'ascii');
buffer.writeString(domain, 'ascii');
return buffer.data;
}
}, {
key: 'createPasswordBuffer',
value: function createPasswordBuffer() {
var password = this.loginData.password || '';
password = new Buffer(password, 'ucs2');
for (var b = 0, len = password.length; b < len; b++) {
var byte = password[b];
var lowNibble = byte & 0x0f;
var highNibble = byte >> 4;
byte = lowNibble << 4 | highNibble;
byte = byte ^ 0xa5;
password[b] = byte;
}
return password;
}
}, {
key: 'getNTLMFlags',
value: function getNTLMFlags() {
return NTLMFlags.NTLM_NegotiateUnicode + NTLMFlags.NTLM_NegotiateOEM + NTLMFlags.NTLM_RequestTarget + NTLMFlags.NTLM_NegotiateNTLM + NTLMFlags.NTLM_NegotiateOemDomainSupplied + NTLMFlags.NTLM_NegotiateOemWorkstationSupplied + NTLMFlags.NTLM_NegotiateAlwaysSign + NTLMFlags.NTLM_NegotiateVersion + NTLMFlags.NTLM_NegotiateExtendedSecurity + NTLMFlags.NTLM_Negotiate128 + NTLMFlags.NTLM_Negotiate56;
}
}, {
key: 'toString',
value: function toString(indent) {
indent || (indent = '');
return indent + 'Login7 - ' + sprintf('TDS:0x%08X, PacketSize:0x%08X, ClientProgVer:0x%08X, ClientPID:0x%08X, ConnectionID:0x%08X', this.tdsVersion, this.packetSize, this.clientProgVer, this.clientPid, this.connectionId) + '\n' + indent + ' ' + sprintf('Flags1:0x%02X, Flags2:0x%02X, TypeFlags:0x%02X, Flags3:0x%02X, ClientTimezone:%d, ClientLCID:0x%08X', this.flags1, this.flags2, this.typeFlags, this.flags3, this.clientTimeZone, this.clientLcid) + '\n' + indent + ' ' + sprintf("Hostname:'%s', Username:'%s', Password:'%s', AppName:'%s', ServerName:'%s', LibraryName:'%s'", this.hostname, this.loginData.userName, this.loginData.password, this.loginData.appName, this.loginData.serverName, libraryName) + '\n' + indent + ' ' + sprintf("Language:'%s', Database:'%s', SSPI:'%s', AttachDbFile:'%s', ChangePassword:'%s'", this.loginData.language, this.loginData.database, this.sspi, this.attachDbFile, this.changePassword);
}
}]);
return Login7Payload;
}();