mirror of
https://github.com/Ylianst/MeshCentral.git
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218 lines
8.5 KiB
JavaScript
218 lines
8.5 KiB
JavaScript
/*
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Copyright 2018 Intel Corporation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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var KEY_QUERY_VALUE = 0x0001;
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var KEY_ENUMERATE_SUB_KEYS = 0x0008;
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var KEY_WRITE = 0x20006;
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var KEY_DATA_TYPES =
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{
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REG_NONE: 0,
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REG_SZ: 1,
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REG_EXPAND_SZ: 2,
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REG_BINARY: 3,
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REG_DWORD: 4,
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REG_DWORD_BIG_ENDIAN: 5,
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REG_LINK: 6,
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REG_MULTI_SZ: 7,
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REG_RESOURCE_LIST: 8,
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REG_FULL_RESOURCE_DESCRIPTOR: 9,
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REG_RESOURCE_REQUIREMENTS_LIST: 10,
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REG_QWORD: 11
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};
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function windows_registry()
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{
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this._ObjectId = 'win-registry';
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this._marshal = require('_GenericMarshal');
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this._AdvApi = this._marshal.CreateNativeProxy('Advapi32.dll');
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this._AdvApi.CreateMethod('RegCreateKeyExA');
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this._AdvApi.CreateMethod('RegEnumKeyExA');
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this._AdvApi.CreateMethod('RegEnumValueA');
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this._AdvApi.CreateMethod('RegOpenKeyExA');
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this._AdvApi.CreateMethod('RegQueryInfoKeyA');
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this._AdvApi.CreateMethod('RegQueryValueExA');
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this._AdvApi.CreateMethod('RegCloseKey');
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this._AdvApi.CreateMethod('RegDeleteKeyA');
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this._AdvApi.CreateMethod('RegDeleteValueA');
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this._AdvApi.CreateMethod('RegSetValueExA');
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this.HKEY = { Root: Buffer.from('80000000', 'hex').swap32(), CurrentUser: Buffer.from('80000001', 'hex').swap32(), LocalMachine: Buffer.from('80000002', 'hex').swap32(), Users: Buffer.from('80000003', 'hex').swap32() };
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this.QueryKey = function QueryKey(hkey, path, key)
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{
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var err;
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var h = this._marshal.CreatePointer();
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var len = this._marshal.CreateVariable(4);
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var valType = this._marshal.CreateVariable(4);
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var HK = this._marshal.CreatePointer(hkey);
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var retVal = null;
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if (key) { key = this._marshal.CreateVariable(key); }
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if (!path) { path = ''; }
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if ((err = this._AdvApi.RegOpenKeyExA(HK, this._marshal.CreateVariable(path), 0, KEY_QUERY_VALUE | KEY_ENUMERATE_SUB_KEYS, h).Val) != 0)
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{
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throw ('Opening Registry Key: ' + path + ' => Returned Error: ' + err);
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}
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if ((path == '' && !key) || !key)
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{
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var result = { subkeys: [], values: [] };
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// Enumerate keys
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var achClass = this._marshal.CreateVariable(1024);
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var achKey = this._marshal.CreateVariable(1024);
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var achValue = this._marshal.CreateVariable(32768);
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var achValueSize = this._marshal.CreateVariable(4);
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var nameSize = this._marshal.CreateVariable(4);
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var achClassSize = this._marshal.CreateVariable(4); achClassSize.toBuffer().writeUInt32LE(1024);
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var numSubKeys = this._marshal.CreateVariable(4);
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var numValues = this._marshal.CreateVariable(4);
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var longestSubkeySize = this._marshal.CreateVariable(4);
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var longestClassString = this._marshal.CreateVariable(4);
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var longestValueName = this._marshal.CreateVariable(4);
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var longestValueData = this._marshal.CreateVariable(4);
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var securityDescriptor = this._marshal.CreateVariable(4);
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var lastWriteTime = this._marshal.CreateVariable(8);
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retVal = this._AdvApi.RegQueryInfoKeyA(h.Deref(), achClass, achClassSize, 0,
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numSubKeys, longestSubkeySize, longestClassString, numValues,
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longestValueName, longestValueData, securityDescriptor, lastWriteTime);
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if (retVal.Val != 0) { throw ('RegQueryInfoKeyA() returned error: ' + retVal.Val); }
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for(var i = 0; i < numSubKeys.toBuffer().readUInt32LE(); ++i)
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{
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nameSize.toBuffer().writeUInt32LE(1024);
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retVal = this._AdvApi.RegEnumKeyExA(h.Deref(), i, achKey, nameSize, 0, 0, 0, lastWriteTime);
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if(retVal.Val == 0)
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{
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result.subkeys.push(achKey.String);
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}
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}
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for (var i = 0; i < numValues.toBuffer().readUInt32LE() ; ++i)
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{
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achValueSize.toBuffer().writeUInt32LE(32768);
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if(this._AdvApi.RegEnumValueA(h.Deref(), i, achValue, achValueSize, 0, 0, 0, 0).Val == 0)
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{
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result.values.push(achValue.String);
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}
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}
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return (result);
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}
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if(this._AdvApi.RegQueryValueExA(h.Deref(), key, 0, 0, 0, len).Val == 0)
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{
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var data = this._marshal.CreateVariable(len.toBuffer().readUInt32LE());
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if (this._AdvApi.RegQueryValueExA(h.Deref(), key, 0, valType, data, len).Val == 0)
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{
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switch(valType.toBuffer().readUInt32LE())
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{
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case KEY_DATA_TYPES.REG_DWORD:
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retVal = data.toBuffer().readUInt32LE();
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break;
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case KEY_DATA_TYPES.REG_DWORD_BIG_ENDIAN:
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retVal = data.toBuffer().readUInt32BE();
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break;
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case KEY_DATA_TYPES.REG_SZ:
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retVal = data.String;
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break;
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case KEY_DATA_TYPES.REG_BINARY:
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default:
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retVal = data.toBuffer();
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retVal._data = data;
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break;
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}
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}
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}
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else
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{
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this._AdvApi.RegCloseKey(h.Deref());
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throw ('Not Found');
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}
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this._AdvApi.RegCloseKey(h.Deref());
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return (retVal);
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};
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this.WriteKey = function WriteKey(hkey, path, key, value)
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{
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var result;
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var h = this._marshal.CreatePointer();
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if (this._AdvApi.RegCreateKeyExA(this._marshal.CreatePointer(hkey), this._marshal.CreateVariable(path), 0, 0, 0, KEY_WRITE, 0, h, 0).Val != 0)
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{
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throw ('Error Opening Registry Key: ' + path);
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}
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var data;
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var dataType;
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switch(typeof(value))
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{
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case 'boolean':
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dataType = KEY_DATA_TYPES.REG_DWORD;
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data = this._marshal.CreateVariable(4);
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data.toBuffer().writeUInt32LE(value ? 1 : 0);
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break;
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case 'number':
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dataType = KEY_DATA_TYPES.REG_DWORD;
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data = this._marshal.CreateVariable(4);
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data.toBuffer().writeUInt32LE(value);
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break;
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case 'string':
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dataType = KEY_DATA_TYPES.REG_SZ;
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data = this._marshal.CreateVariable(value);
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break;
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default:
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dataType = KEY_DATA_TYPES.REG_BINARY;
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data = this._marshal.CreateVariable(value.length);
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value.copy(data.toBuffer());
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break;
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}
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if(this._AdvApi.RegSetValueExA(h.Deref(), this._marshal.CreateVariable(key), 0, dataType, data, data._size).Val != 0)
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{
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this._AdvApi.RegCloseKey(h.Deref());
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throw ('Error writing reg key: ' + key);
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}
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this._AdvApi.RegCloseKey(h.Deref());
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};
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this.DeleteKey = function DeleteKey(hkey, path, key)
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{
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if(!key)
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{
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if(this._AdvApi.RegDeleteKeyA(this._marshal.CreatePointer(hkey), this._marshal.CreateVariable(path)).Val != 0)
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{
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throw ('Error Deleting Key: ' + path);
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}
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}
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else
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{
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var h = this._marshal.CreatePointer();
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var result;
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if (this._AdvApi.RegOpenKeyExA(this._marshal.CreatePointer(hkey), this._marshal.CreateVariable(path), 0, KEY_QUERY_VALUE | KEY_WRITE, h).Val != 0)
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{
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throw ('Error Opening Registry Key: ' + path);
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}
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if ((result = this._AdvApi.RegDeleteValueA(h.Deref(), this._marshal.CreateVariable(key)).Val) != 0)
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{
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this._AdvApi.RegCloseKey(h.Deref());
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throw ('Error[' + result + '] Deleting Key: ' + path + '.' + key);
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}
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this._AdvApi.RegCloseKey(h.Deref());
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}
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};
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}
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module.exports = new windows_registry();
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