DSCResources/MSFT_xIisLogging/MSFT_xIisLogging.psm1
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# Load the Helper Module Import-Module -Name "$PSScriptRoot\..\Helper.psm1" # Localized messages data LocalizedData { # culture="en-US" ConvertFrom-StringData -StringData @' VerboseGetTargetResult = Get-Taget has been run. VerboseSetTargetUpdateLogPath = LogPath is not in the desired state and will be updated. VerboseSetTargetUpdateLogFlags = LogFlags do not match and will be updated. VerboseSetTargetUpdateLogPeriod = LogPeriod is not in the desired state and will be updated. VerboseSetTargetUpdateLogTruncateSize = TruncateSize is not in the desired state and will be updated. VerboseSetTargetUpdateLoglocalTimeRollover = LoglocalTimeRollover is not in the desired state and will be updated. VerboseSetTargetUpdateLogFormat = LogFormat is not in the desired state and will be updated VerboseTestTargetFalseLogPath = LogPath does match desired state. VerboseTestTargetFalseLogFlags = LogFlags does not match desired state. VerboseTestTargetFalseLogPeriod = LogPeriod does not match desired state. VerboseTestTargetFalseLogTruncateSize = LogTruncateSize does not match desired state. VerboseTestTargetFalseLoglocalTimeRollover = LoglocalTimeRollover does not match desired state. VerboseTestTargetFalseLogFormat = LogFormat does not match desired state. WarningLogPeriod = LogTruncateSize has is an input as will overwrite this desired state. WarningIncorrectLogFormat = LogFormat is not W3C, as a result LogFlags will not be used. '@ } <# .SYNOPSIS This will return a hashtable of results about the given LogPath #> function Get-TargetResource { [CmdletBinding()] [OutputType([System.Collections.Hashtable])] param ( [Parameter(Mandatory = $true)] [String] $LogPath ) Assert-Module $currentLogSettings = Get-WebConfiguration ` -filter '/system.applicationHost/sites/siteDefaults/Logfile' Write-Verbose -Message ($LocalizedData.VerboseGetTargetResult) return @{ LogPath = $currentLogSettings.directory LogFlags = [Array]$currentLogSettings.LogExtFileFlags LogPeriod = $currentLogSettings.period LogTruncateSize = $currentLogSettings.truncateSize LoglocalTimeRollover = $currentLogSettings.localTimeRollover LogFormat = $currentLogSettings.logFormat } } <# .SYNOPSIS This will set the desired state #> function Set-TargetResource { [CmdletBinding()] param ( [Parameter(Mandatory = $true)] [String] $LogPath, [ValidateSet('Date','Time','ClientIP','UserName','SiteName','ComputerName','ServerIP','Method','UriStem','UriQuery','HttpStatus','Win32Status','BytesSent','BytesRecv','TimeTaken','ServerPort','UserAgent','Cookie','Referer','ProtocolVersion','Host','HttpSubStatus')] [String[]] $LogFlags, [ValidateSet('Hourly','Daily','Weekly','Monthly','MaxSize')] [String] $LogPeriod, [ValidateRange('1048576','4294967295')] [String] $LogTruncateSize, [Boolean] $LoglocalTimeRollover, [ValidateSet('IIS','W3C','NCSA')] [String] $LogFormat ) Assert-Module $currentLogState = Get-TargetResource -LogPath $LogPath # Update LogFormat if needed if ($PSBoundParameters.ContainsKey('LogFormat') -and ` ($LogFormat -ne $currentLogState.LogFormat)) { Write-Verbose -Message ($LocalizedData.VerboseSetTargetUpdateLogFormat) Set-WebConfigurationProperty '/system.applicationHost/sites/siteDefaults/logfile' ` -Name logFormat ` -Value $LogFormat } # Update LogPath if needed if ($PSBoundParameters.ContainsKey('LogPath') -and ($LogPath -ne $currentLogState.LogPath)) { Write-Verbose -Message ($LocalizedData.VerboseSetTargetUpdateLogPath) Set-WebConfigurationProperty '/system.applicationHost/sites/siteDefaults/logfile' ` -Name directory ` -Value $LogPath } # Update Logflags if needed; also sets logformat to W3C if ($PSBoundParameters.ContainsKey('LogFlags') -and ` (-not (Compare-LogFlags -LogFlags $LogFlags))) { Write-Verbose -Message ($LocalizedData.VerboseSetTargetUpdateLogFlags) Set-WebConfigurationProperty '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name logFormat ` -Value 'W3C' Set-WebConfigurationProperty '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name logExtFileFlags ` -Value ($LogFlags -join ',') } # Update Log Period if needed if ($PSBoundParameters.ContainsKey('LogPeriod') -and ` ($LogPeriod -ne $currentLogState.LogPeriod)) { if ($PSBoundParameters.ContainsKey('LogTruncateSize')) { Write-Verbose -Message ($LocalizedData.WarningLogPeriod) } Write-Verbose -Message ($LocalizedData.VerboseSetTargetUpdateLogPeriod) Set-WebConfigurationProperty '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name period ` -Value $LogPeriod } # Update LogTruncateSize if needed if ($PSBoundParameters.ContainsKey('LogTruncateSize') -and ` ($LogTruncateSize -ne $currentLogState.LogTruncateSize)) { Write-Verbose -Message ($LocalizedData.VerboseSetTargetUpdateLogTruncateSize) Set-WebConfigurationProperty '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name truncateSize ` -Value $LogTruncateSize Set-WebConfigurationProperty '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name period ` -Value 'MaxSize' } # Update LoglocalTimeRollover if needed if ($PSBoundParameters.ContainsKey('LoglocalTimeRollover') -and ` ($LoglocalTimeRollover -ne ` ([System.Convert]::ToBoolean($currentLogState.LoglocalTimeRollover)))) { Write-Verbose -Message ($LocalizedData.VerboseSetTargetUpdateLoglocalTimeRollover) Set-WebConfigurationProperty '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name localTimeRollover ` -Value $LoglocalTimeRollover } } <# .SYNOPSIS This tests the desired state. If the state is not correct it will return $false. If the state is correct it will return $true #> function Test-TargetResource { [CmdletBinding()] [OutputType([System.Boolean])] param ( [Parameter(Mandatory = $true)] [String] $LogPath, [ValidateSet('Date','Time','ClientIP','UserName','SiteName','ComputerName','ServerIP','Method','UriStem','UriQuery','HttpStatus','Win32Status','BytesSent','BytesRecv','TimeTaken','ServerPort','UserAgent','Cookie','Referer','ProtocolVersion','Host','HttpSubStatus')] [String[]] $LogFlags, [ValidateSet('Hourly','Daily','Weekly','Monthly','MaxSize')] [String] $LogPeriod, [ValidateRange('1048576','4294967295')] [String] $LogTruncateSize, [Boolean] $LoglocalTimeRollover, [ValidateSet('IIS','W3C','NCSA')] [String] $LogFormat ) Assert-Module $currentLogState = Get-TargetResource -LogPath $LogPath # Check LogFormat if ($PSBoundParameters.ContainsKey('LogFormat')) { # Warn if LogFlags are passed in and Current LogFormat is not W3C if ($PSBoundParameters.ContainsKey('LogFlags') -and ` $LogFormat -ne 'W3C') { Write-Verbose -Message ($LocalizedData.WarningIncorrectLogFormat) } # Warn if LogFlags are passed in and Desired LogFormat is not W3C if($PSBoundParameters.ContainsKey('LogFlags') -and ` $currentLogState.LogFormat -ne 'W3C') { Write-Verbose -Message ($LocalizedData.WarningIncorrectLogFormat) } # Check LogFormat if ($LogFormat -ne $currentLogState.LogFormat) { Write-Verbose -Message ($LocalizedData.VerboseTestTargetFalseLogFormat) return $false } } # Check LogFlags if ($PSBoundParameters.ContainsKey('LogFlags') -and ` (-not (Compare-LogFlags -LogFlags $LogFlags))) { Write-Verbose -Message ($LocalizedData.VerboseTestTargetFalseLogFlags) return $false } # Check LogPath if ($PSBoundParameters.ContainsKey('LogPath') -and ` ($LogPath -ne $currentLogState.LogPath)) { Write-Verbose -Message ($LocalizedData.VerboseTestTargetFalseLogPath) return $false } # Check LogPeriod if ($PSBoundParameters.ContainsKey('LogPeriod') -and ` ($LogPeriod -ne $currentLogState.LogPeriod)) { if ($PSBoundParameters.ContainsKey('LogTruncateSize')) { Write-Verbose -Message ($LocalizedData.WarningLogPeriod) } Write-Verbose -Message ($LocalizedData.VerboseTestTargetFalseLogPeriod) return $false } # Check LogTruncateSize if ($PSBoundParameters.ContainsKey('LogTruncateSize') -and ` ($LogTruncateSize -ne $currentLogState.LogTruncateSize)) { Write-Verbose -Message ($LocalizedData.VerboseTestTargetFalseLogTruncateSize) return $false } # Check LoglocalTimeRollover if ($PSBoundParameters.ContainsKey('LoglocalTimeRollover') -and ` ($LoglocalTimeRollover -ne ` ([System.Convert]::ToBoolean($currentLogState.LoglocalTimeRollover)))) { Write-Verbose -Message ($LocalizedData.VerboseTestTargetFalseLoglocalTimeRollover) return $false } return $true } #region Helper functions <# .SYNOPSIS Helper function used to validate the logflags status. Returns False if the loglfags do not match and true if they do .PARAMETER LogFlags Specifies flags to check #> function Compare-LogFlags { [CmdletBinding()] [OutputType([Boolean])] param ( [ValidateSet('Date','Time','ClientIP','UserName','SiteName','ComputerName','ServerIP','Method','UriStem','UriQuery','HttpStatus','Win32Status','BytesSent','BytesRecv','TimeTaken','ServerPort','UserAgent','Cookie','Referer','ProtocolVersion','Host','HttpSubStatus')] [String[]] $LogFlags ) $currentLogFlags = (Get-WebConfigurationProperty ` -Filter '/system.Applicationhost/Sites/SiteDefaults/logfile' ` -Name LogExtFileFlags) -split ',' | ` Sort-Object $proposedLogFlags = $LogFlags -split ',' | Sort-Object if (Compare-Object -ReferenceObject $currentLogFlags ` -DifferenceObject $proposedLogFlags) { return $false } return $true } #endregion Export-ModuleMember -function *-TargetResource |