query-msi-property.js

/*
 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */


function readMsi(msiPath, callback) {
    var installer = new ActiveXObject('WindowsInstaller.Installer')
    var database = installer.OpenDatabase(msiPath, 0 /* msiOpenDatabaseModeReadOnly */)

    return callback(database)
}


function queryAllProperties(db) {
    var reply = {}

    var view = db.OpenView("SELECT `Property`, `Value` FROM Property")
    view.Execute()

    try {
        while(true) {
            var record = view.Fetch()
            if (!record) {
                break
            }

            var name = record.StringData(1)
            var value = record.StringData(2)

            reply[name] = value
        }
    } finally {
        view.Close()
    }

    return reply
}


(function () {
    var msi = WScript.arguments(0)
    var propName = WScript.arguments(1)

    var props = readMsi(msi, queryAllProperties)
    WScript.Echo(props[propName])
})()