Functions/Get-ServiceConfiguration.ps1

# Copyright 2012 Aaron Jensen
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

function Get-ServiceConfiguration
{
    <#
    .SYNOPSIS
    Gets a service's full configuration, e.g. username, path, failure actions, etc.
 
    .DESCRIPTION
    The .NET `ServiceController` object only returns basic information about a service. This function returns a bunch of the missing configuration in the form of a `Carbon.Service.ServiceInfo` object:
     
     * Account name/user name
     * Path
     * Description
     * Failure actions
 
    You can load a specific service using its name, or pipe in `ServiceController` objects.
 
    In addition to this function, Carbon also adds this information as extended type data properties onto the `ServiceController` class. To see it,
 
        Get-Service | Get-Member
 
    The user running this function must have `QueryConfig`, `QueryStatus`, and `EnumerateDependents` permissions on the service. Use `Grant-ServicePermission` to grant these permissions.
 
    This function is new in Carbon 1.8.
 
    .LINK
    Grant-ServicePermission
 
    .EXAMPLE
    Get-Service | Get-ServiceConfiguration
 
    Demonstrates how you can pipe in a `ServiceController` object to load the service. This works for services on remote computers as well.
     
    .EXAMPLE
    Get-ServiceConfiguration -Name 'w3svc'
 
    Demonstrates how you can get a specific service's configuration.
 
    .EXAMPLE
    Get-ServiceConfiguration -Name 'w3svc' -ComputerName 'enterprise'
 
    Demonstrates how to get service configuration for a service on a remote computer.
    #>

    [CmdletBinding()]
    [OutputType([Carbon.Service.ServiceInfo])]
    param(
        [Parameter(Mandatory=$true,ValueFromPipelineByPropertyName=$true,Position=0)]
        [string]
        # The name of the service.
        $Name,

        [Parameter(ValueFromPipelineByPropertyName=$true)]
        [Alias('MachineName')]
        [string]
        # The name of the computer where the service lives.
        $ComputerName
    )

    begin
    {
        Set-StrictMode -Version 'Latest'

        Use-CallerPreference -Cmdlet $PSCmdlet -Session $ExecutionContext.SessionState
    }

    process
    {
        New-Object 'Carbon.Service.ServiceInfo' $Name,$ComputerName
    }
}