Public/Logging.ps1
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<#
.SYNOPSIS Create a new method of outputting logs. .DESCRIPTION Create a new method of outputting logs. .PARAMETER Terminal If supplied, will use the inbuilt Terminal logging output method. .PARAMETER File If supplied, will use the inbuilt File logging output method. .PARAMETER Path The File Path of where to store the logs. .PARAMETER Name The File Name to prepend new log files using. .PARAMETER MaxDays The maximum number of days to keep logs, before Pode automatically removes them. .PARAMETER MaxSize The maximum size of a log file, before Pode starts writing to a new log file. .PARAMETER Custom If supplied, will allow you to create a Custom Logging output method. .PARAMETER ScriptBlock The ScriptBlock that defines how to output a log item. .PARAMETER ArgumentList An array of arguments to supply to the Custom Logging output method's ScriptBlock. .EXAMPLE $term_logging = New-PodeLoggingMethod -Terminal .EXAMPLE $file_logging = New-PodeLoggingMethod -File -Path ./logs -Name 'requests' .EXAMPLE $custom_logging = New-PodeLoggingMethod -Custom -ScriptBlock { /* logic */ } #> function New-PodeLoggingMethod { [CmdletBinding(DefaultParameterSetName='Terminal')] [OutputType([hashtable])] param ( [Parameter(ParameterSetName='Terminal')] [switch] $Terminal, [Parameter(ParameterSetName='File')] [switch] $File, [Parameter(ParameterSetName='File')] [string] $Path = './logs', [Parameter(Mandatory=$true, ParameterSetName='File')] [string] $Name, [Parameter(ParameterSetName='File')] [ValidateScript({ if ($_ -lt 0) { throw "MaxDays must be 0 or greater, but got: $($_)s" } return $true })] [int] $MaxDays = 0, [Parameter(ParameterSetName='File')] [ValidateScript({ if ($_ -lt 0) { throw "MaxSize must be 0 or greater, but got: $($_)s" } return $true })] [int] $MaxSize = 0, [Parameter(ParameterSetName='Custom')] [switch] $Custom, [Parameter(Mandatory=$true, ParameterSetName='Custom')] [ValidateScript({ if (Test-IsEmpty $_) { throw "A non-empty ScriptBlock is required for the Custom logging output method" } return $true })] [scriptblock] $ScriptBlock, [Parameter(ParameterSetName='Custom')] [object[]] $ArgumentList ) switch ($PSCmdlet.ParameterSetName.ToLowerInvariant()) { 'terminal' { return @{ ScriptBlock = (Get-PodeLoggingTerminalMethod) Arguments = @{} } } 'file' { $Path = (Protect-PodeValue -Value $Path -Default './logs') $Path = (Get-PodeRelativePath -Path $Path -JoinRoot) New-Item -Path $Path -ItemType Directory -Force | Out-Null return @{ ScriptBlock = (Get-PodeLoggingFileMethod) Arguments = @{ Name = $Name Path = $Path MaxDays = $MaxDays MaxSize = $MaxSize FileId = 0 Date = $null NextClearDown = [datetime]::Now.Date } } } 'custom' { return @{ ScriptBlock = $ScriptBlock Arguments = $ArgumentList } } } } <# .SYNOPSIS Enables Request Logging using a supplied output method. .DESCRIPTION Enables Request Logging using a supplied output method. .PARAMETER Method The Method to use for output the log entry (From New-PodeLoggingMethod). .PARAMETER Raw If supplied, the log item returned will be the raw Request item as a hashtable and not a string (for Custom methods). .EXAMPLE New-PodeLoggingMethod -Terminal | Enable-PodeRequestLogging #> function Enable-PodeRequestLogging { [CmdletBinding()] param ( [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [hashtable] $Method, [switch] $Raw ) Test-PodeIsServerless -FunctionName 'Enable-PodeRequestLogging' -ThrowError $name = Get-PodeRequestLoggingName # error if it's already enabled if ($PodeContext.Server.Logging.Types.Contains($name)) { throw 'Request Logging has already been enabled' } # ensure the Method contains a scriptblock if (Test-IsEmpty $Method.ScriptBlock) { throw "The supplied output Method for Request Logging requires a valid ScriptBlock" } # add the request logger $PodeContext.Server.Logging.Types[$name] = @{ Method = $Method ScriptBlock = (Get-PodeLoggingInbuiltType -Type Requests) Arguments = @{ Raw = $Raw } } } <# .SYNOPSIS Disables Request Logging. .DESCRIPTION Disables Request Logging. .EXAMPLE Disable-PodeRequestLogging #> function Disable-PodeRequestLogging { [CmdletBinding()] param() Remove-PodeLogger -Name (Get-PodeRequestLoggingName) } <# .SYNOPSIS Enables Error Logging using a supplied output method. .DESCRIPTION Enables Error Logging using a supplied output method. .PARAMETER Method The Method to use for output the log entry (From New-PodeLoggingMethod). .PARAMETER Levels The Levels of errors that should be logged (default is Error). .PARAMETER Raw If supplied, the log item returned will be the raw Error item as a hashtable and not a string (for Custom methods). .EXAMPLE New-PodeLoggingMethod -Terminal | Enable-PodeErrorLogging #> function Enable-PodeErrorLogging { [CmdletBinding()] param ( [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [hashtable] $Method, [Parameter()] [ValidateNotNullOrEmpty()] [ValidateSet('Error', 'Warning', 'Informational', 'Verbose', 'Debug')] [string[]] $Levels = @('Error'), [switch] $Raw ) $name = Get-PodeErrorLoggingName # error if it's already enabled if ($PodeContext.Server.Logging.Types.Contains($name)) { throw 'Error Logging has already been enabled' } # ensure the Method contains a scriptblock if (Test-IsEmpty $Method.ScriptBlock) { throw "The supplied output Method for Error Logging requires a valid ScriptBlock" } # add the error logger $PodeContext.Server.Logging.Types[$name] = @{ Method = $Method ScriptBlock = (Get-PodeLoggingInbuiltType -Type Errors) Arguments = @{ Raw = $Raw Levels = $Levels } } } <# .SYNOPSIS Disables Error Logging. .DESCRIPTION Disables Error Logging. .EXAMPLE Disable-PodeErrorLogging #> function Disable-PodeErrorLogging { [CmdletBinding()] param() Remove-PodeLogger -Name (Get-PodeErrorLoggingName) } <# .SYNOPSIS Adds a custom Logging method for parsing custom log items. .DESCRIPTION Adds a custom Logging method for parsing custom log items. .PARAMETER Name A unique Name for the Logging method. .PARAMETER Method The Method to use for output the log entry (From New-PodeLoggingMethod). .PARAMETER ScriptBlock The ScriptBlock defining logic that transforms an item, and returns it for outputting. .PARAMETER ArgumentList An array of arguments to supply to the Custom Logger's ScriptBlock. .EXAMPLE New-PodeLoggingMethod -Terminal | Add-PodeLogger -Name 'Main' -ScriptBlock { /* logic */ } #> function Add-PodeLogger { [CmdletBinding()] param ( [Parameter(Mandatory=$true)] [string] $Name, [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [hashtable] $Method, [Parameter(Mandatory=$true)] [ValidateScript({ if (Test-IsEmpty $_) { throw "A non-empty ScriptBlock is required for the logging method" } return $true })] [scriptblock] $ScriptBlock, [Parameter()] [object[]] $ArgumentList ) # ensure the name doesn't already exist if ($PodeContext.Server.Logging.Types.ContainsKey($Name)) { throw "Logging method already defined: $($Name)" } # ensure the Method contains a scriptblock if (Test-IsEmpty $Method.ScriptBlock) { throw "The supplied output Method for the '$($Name)' Logging method requires a valid ScriptBlock" } # add logging method to server $PodeContext.Server.Logging.Types[$Name] = @{ Method = $Method ScriptBlock = $ScriptBlock Arguments = $ArgumentList } } <# .SYNOPSIS Removes a configured Logging method. .DESCRIPTION Removes a configured Logging method. .PARAMETER Name The Name of the Logging method. .EXAMPLE Remove-PodeLogger -Name 'LogName' #> function Remove-PodeLogger { [CmdletBinding()] param ( [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [string] $Name ) $PodeContext.Server.Logging.Types.Remove($Name) | Out-Null } <# .SYNOPSIS Clears all Logging methods that have been configured. .DESCRIPTION Clears all Logging methods that have been configured. .EXAMPLE Clear-PodeLoggers #> function Clear-PodeLoggers { [CmdletBinding()] param() $PodeContext.Server.Logging.Types.Clear() } <# .SYNOPSIS Writes and Exception or ErrorRecord using the inbuilt error logging. .DESCRIPTION Writes and Exception or ErrorRecord using the inbuilt error logging. .PARAMETER Exception An Exception to write. .PARAMETER ErrorRecord An ErrorRecord to write. .PARAMETER Level The Level of the error being logged. .PARAMETER CheckInnerException If supplied, any exceptions are check for inner exceptions. If one is present, this is also logged. .EXAMPLE try { /* logic */ } catch { $_ | Write-PodeErrorLog } .EXAMPLE [System.Exception]::new('error message') | Write-PodeErrorLog #> function Write-PodeErrorLog { [CmdletBinding()] param ( [Parameter(Mandatory=$true, ValueFromPipeline=$true, ParameterSetName='Exception')] [System.Exception] $Exception, [Parameter(Mandatory=$true, ValueFromPipeline=$true, ParameterSetName='Error')] [System.Management.Automation.ErrorRecord] $ErrorRecord, [Parameter()] [ValidateNotNullOrEmpty()] [ValidateSet('Error', 'Warning', 'Informational', 'Verbose', 'Debug')] [string] $Level = 'Error', [Parameter(ParameterSetName='Exception')] [switch] $CheckInnerException ) # do nothing if logging is disabled, or error logging isn't setup $name = Get-PodeErrorLoggingName if (!(Test-PodeLoggerEnabled -Name $name)) { return } # do nothing if the error level isn't present $_args = (Get-PodeLogger -Name $name).Arguments if (@($_args.Levels) -inotcontains $Level) { return } # build error object for what we need switch ($PSCmdlet.ParameterSetName.ToLowerInvariant()) { 'exception' { $item = @{ Category = $Exception.Source Message = $Exception.Message StackTrace = $Exception.StackTrace } } 'error' { $item = @{ Category = $ErrorRecord.CategoryInfo.ToString() Message = $ErrorRecord.Exception.Message StackTrace = $ErrorRecord.ScriptStackTrace } } } # add general info $item['Server'] = $env:COMPUTERNAME $item['Level'] = $Level $item['Date'] = [datetime]::Now $item['ThreadId'] = [int]$ThreadId # add the item to be processed $PodeContext.LogsToProcess.Add(@{ Name = $name Item = $item }) | Out-Null # for exceptions, check the inner exception if ($CheckInnerException -and ($null -ne $Exception.InnerException) -and ![string]::IsNullOrWhiteSpace($Exception.InnerException.Message)) { $Exception.InnerException | Write-PodeErrorLog } } <# .SYNOPSIS Write an object to a configured custom Logging method. .DESCRIPTION Write an object to a configured custom Logging method. .PARAMETER Name The Name of the Logging method. .PARAMETER InputObject The Object to write. .EXAMPLE $object | Write-PodeLog -Name 'LogName' #> function Write-PodeLog { [CmdletBinding()] param ( [Parameter(Mandatory=$true)] [string] $Name, [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [object] $InputObject ) # do nothing if logging is disabled, or logger isn't setup if (!(Test-PodeLoggerEnabled -Name $Name)) { return } # add the item to be processed $PodeContext.LogsToProcess.Add(@{ Name = $Name Item = $InputObject }) | Out-Null } <# .SYNOPSIS Masks values within a log item to protect sensitive information. .DESCRIPTION Masks values within a log item, or any string, to protect sensitive information. Patterns, and the Mask, can be configured via the server.psd1 configuration file. .PARAMETER Item The string Item to mask values. .EXAMPLE $value = Protect-PodeLogItem -Item 'Username=Morty, Password=Hunter2' #> function Protect-PodeLogItem { [CmdletBinding()] param( [Parameter(ValueFromPipeline=$true)] [string] $Item ) # do nothing if there are no masks if (Test-IsEmpty $PodeContext.Server.Logging.Masking.Patterns) { return $item } # attempt to apply each mask foreach ($mask in $PodeContext.Server.Logging.Masking.Patterns) { if ($Item -imatch $mask) { # has both keep before/after if ($Matches.ContainsKey('keep_before') -and $Matches.ContainsKey('keep_after')) { $Item = ($Item -ireplace $mask, "`${keep_before}$($PodeContext.Server.Logging.Masking.Mask)`${keep_after}") } # has just keep before elseif ($Matches.ContainsKey('keep_before')) { $Item = ($Item -ireplace $mask, "`${keep_before}$($PodeContext.Server.Logging.Masking.Mask)") } # has just keep after elseif ($Matches.ContainsKey('keep_after')) { $Item = ($Item -ireplace $mask, "$($PodeContext.Server.Logging.Masking.Mask)`${keep_after}") } # normal mask else { $Item = ($Item -ireplace $mask, $PodeContext.Server.Logging.Masking.Mask) } } } return $Item } |