welsonjs/lib/wmi.js
2020-11-15 13:31:35 +09:00

141 lines
4.0 KiB
JavaScript

////////////////////////////////////////////////////////////////////////
// WMI(Windows Management Instrumentation) API
////////////////////////////////////////////////////////////////////////
var WMIQueryObject = function() {
var wbemFlagReturnImmediately = 0x10;
var wbemFlagForwardOnly = 0x20;
this.computer = ".";
this.namespace = "root\\cimv2";
this.interface = null;
this.cursor = {};
this.current = {};
this.create = function() {
try {
if (typeof(GetObject) === "function") {
this.interface = GetObject("winmgmts:{impersonationLevel=impersonate}!\\\\" + this.computer + "\\" + this.namespace);
} else {
var objLocator = CreateObject("WbemScripting.SWbemLocator");
this.interface = objLocator.ConnectServer(this.computer, this.namespace);
}
} catch (e) {
console.error(e.message);
}
return this;
};
this.setComputer = function(computer) {
this.computer = computer;
return this;
};
this.setNamespace = function(namespace) {
this.namespace = namespace;
return this;
};
this.execQuery = function(query) {
try {
var result = this.interface.ExecQuery(query, "WQL", wbemFlagReturnImmediately | wbemFlagForwardOnly);
this.cursor = new Enumerator(result);
} catch (e) {
console.error(e.message);
}
return this;
};
this.fetch = function() {
if (!this.cursor.atEnd()) {
this.current = this.cursor.item();
this.cursor.moveNext();
}
return this;
};
this.fetchAll = function() {
return this.cursor.toArray();
};
this.get = function(key) {
if (key in this.current) {
return this.current[key];
} else {
return "";
}
};
this.create();
};
var WMIClassObject = function() {
this.interface = (new WMIQueryObject()).interface;
this.classObject = null;
this.className = "";
this.instance = null;
this.methodObject = null;
this.methodName = "";
this.inParams = {};
this.outParams = {};
// Instance
this.setClass = function(className) {
this.className = className;
this.classObject = this.interface.Get(className);
return this;
};
this.create = function() {
this.instance = this.classObject.SpawnInstance_();
return this;
};
this.getAttribute = function(key) {
return this.instance[key];
};
this.setAttribute = function(key, value) {
this.instance[key] = value;
};
this.getInstance = function() {
return this.instance;
};
// Method
this.setMethod = function(methodName) {
this.methodName = methodName;
this.methodObject = this.classObject.Methods_.Item(methodName);
return this;
};
this.setParameter = function(key, value) {
this.inParams[key] = value;
return this;
};
this.setParameters = function(params) {
if (typeof(params) !== "undefined") {
for (k in params) {
this.setParameter(k, params[k]);
}
}
return this;
};
this.execute = function() {
var params = this.methodObject.InParameters.SpawnInstance_();
for (k in this.parameters) {
params[k] = this.inParams[k];
}
this.outParams = this.classObject.ExecMethod_(this.methodName, params);
return this;
};
this.get = function(key) {
if (key in this.outParams) {
return this.outParams[key];
} else {
return "";
}
};
};
exports.execQuery = function(query) {
return (new WMIQueryObject()).execQuery(query);
};
exports.setClass = function(className) {
return (new WMIClassObject()).setClass(className);
};
exports.VERSIONINFO = "WMI interface (wmi.js) version 0.1";
exports.global = global;
exports.require = global.require;