CyHelper.ps1
|
<#
Helper function. Converts a given string or byte array to Base64 "urlencoding" format (= replace certain special characters from the Base64 alphabet with URL safe chars) #> function ConvertTo-Base64UrlEncoding { Param( [parameter(Mandatory=$true)] [Object]$s ) if ($s -is [String]) { $s = [Convert]::ToBase64String([System.Text.Encoding]::UTF8.GetBytes($s)) # convert to base64 } elseif ($s -is [byte[]]) { $s = [Convert]::ToBase64String($s) } $s.Split("=")[0].Replace("+", "-").Replace("/", "_") # alphabet replacement from regular base64 to base64urlencoded } <# Helper function. Converts a given string from Base64 "urlencoding" format (= replace certain special characters from the Base64 alphabet with URL safe chars) to a string #> function ConvertFrom-Base64UrlEncoding { Param( [parameter(Mandatory=$true)] [String]$s ) $s = $s.Replace("-", "+").Replace("_", "/") # alphabet replacement from base64urlencoded to regular while ($s.Length % 4 -ne 0) { $s += "=" } # padding [Text.Encoding]::UTF8.GetString([Convert]::FromBase64String($s)) } <# .SYNOPSIS Converts the named "date" fields from CSV data (in "M/d/yyyy h:mm:ss tt" format) into datetime objects so that they can be exported to Excel. .DESCRIPTION All date/time data is treated as UTC. Format defaults to "M/d/yyyy h:mm:ss tt" #> function Convert-FromCSVDate { Param ( [parameter(Mandatory=$True)] [PSObject]$Data, [Parameter(Mandatory=$True)] [Array]$Fields, [Parameter(Mandatory=$False)] [Array]$Format = "M/d/yyyy h:mm:ss tt" ) $Data | ForEach-Object { # each row ForEach ($field in $Fields) { if (![string]::IsNullOrWhiteSpace($_.$field)) { try { $t = $_.$field $_.$field = [datetime]::ParseExact($_.$field, $Format, [cultureinfo]::InvariantCulture) } catch { Write-Error "Could not convert date: $($t), exception: $($_.Exception.ItemName)" } } } $_ } } <# .SYNOPSIS Returns a hash map with the consoles configuration list for API and TDR modules .DESCRIPTION Reads "consoles.json" from $HOME\ as a short-hand way to reference the credentials and settings to access one or more Cylance consoles. #> function Get-CyConsoleConfig { @("$($HOME)\TDRs\", "$($HOME)" ) | ForEach-Object { if (Test-Path -Path "$($_)\consoles.json" -PathType Leaf) { # PowerShell parser chokes on JS comments... pffft $script:ConsolesJsonPath = "$($_)\consoles.json" Write-Verbose "consoles.json path used: $($script:ConsolesJsonPath)" Get-Content "$($_)\consoles.json" | Select-String -NotMatch -Pattern "^[\s]*//.*$" | ConvertFrom-Json return } } @() } <# .SYNOPSIS Adds a console entry to the consoles.json file. .DESCRIPTION This powershell module stores credentials and settings in a JSON file (consoles.json) for convenient access of parameters such as URLs to use, API secrets, TDR token etc. The use of the JSON file is not mandatory but makes using the API via the powershell module much easier, since consoles can be referred to by name rather than a combination of credentials (e.g. API application ID, API secret, API Auth URL, and API tenant ID would otherwise be needed everytime the API is used in program code or from a Powershell console). You can call New-CyConsoleConfig without any parameters and it will prompt for all details. .PARAMETER Console Mandatory. The console ID you will use to refer to this console entry in your consoles.json file. See the README for CyCLI module. .PARAMETER Id Mandatory. API ID .PARAMETER Secret Mandatory. API Secret .PARAMETER TenantId Mandatory. API Tenant ID .PARAMETER Region Mandatory. The tenant region. Determines the URLs to use for API and TDR access. .PARAMETER Token Optional. If you would like to use TDR access as well, specify TDR token for console. #> function New-CyConsoleConfig { Param ( [parameter(Mandatory=$true)] [String]$Console, [parameter(Mandatory=$true)] [String]$APIId, [parameter(Mandatory=$true)] [SecureString]$APISecret, [parameter(Mandatory=$true)] [String]$APITenantId, [parameter(Mandatory=$false)] [String]$Token, [parameter(Mandatory=$true)] [ValidateSet ("apne1", "au", "euc1", "sae1", "us-gov", "us")] [String]$Region ) $Consoles = Get-CyConsoleConfig if ($null -eq $script:ConsolesJsonPath) { $script:ConsolesJsonPath = "$($HOME)\consoles.json" } try { # was: $APISecret = Read-Host -AsSecureString $DPAPISecret = ConvertFrom-SecureString -SecureString $APISecret $TDRUrl = "https://protect.cylance.com/Reports/ThreatDataReportV1/"; $APIAuthUrl = "https://protectapi.cylance.com/auth/v2/token"; switch -Regex ($Region) { "apne1|au|euc1|sae1" { $TDRUrl = "https://protect-$($Region).cylance.com/Reports/ThreatDataReportV1/"; $APIAuthUrl = "https://protectapi-$($Region).cylance.com/auth/v2/token"; } "us-gov" { $TDRUrl = "https://protect.us.cylance.com/Reports/ThreatDataReportV1/"; $APIAuthUrl = "https://protectapi.us.cylance.com/auth/v2/token"; } } $null = Get-CyAPI -APIId $APIId -APISecret $APISecret -APITenantId $APITenantId -APIAuthUrl $APIAuthUrl -Scope None # https://social.technet.microsoft.com/wiki/contents/articles/4546.working-with-passwords-secure-strings-and-credentials-in-windows-powershell.aspx $NewConsole = @{ ConsoleId = $Console AutoRetrieve = $true APIId = $APIId APISecret = $DPAPISecret APITenantId = $APITenantId APIUrl = $APIAuthUrl Token = $Token TDRUrl = $TDRUrl } if ($null -eq $Consoles) { $Consoles = @( $NewConsole ) } else { $Consoles += $NewConsole } if (Test-Path -Path $script:ConsolesJsonPath -Type Leaf) { Copy-Item $script:ConsolesJsonPath "$($script:ConsolesJsonPath).bak" -Force } ConvertTo-Json $Consoles | Out-File -FilePath $script:ConsolesJsonPath -Force } catch { $_.Exception return } } <# .SYNOPSIS Removes a console configuration entry from consoles.json #> function Remove-CyConsoleConfig { [CmdletBinding()] Param() DynamicParam { Get-CyConsoleArgumentAutoCompleter -Mandatory -ParameterName "Console" } Begin { } Process { $Consoles = (Get-CyConsoleConfig) | Where-Object ConsoleId -ne $PSBoundParameters.Console ConvertTo-Json $Consoles | Out-File -FilePath $script:ConsolesJsonPath -Force } } <# .SYNOPSIS Gets a DynamicParam definition that enables auto-completion to specify a single or multiple console IDs as an argument. .PARAMETER Mandatory Makes the dynamic parameter mandatory. .PARAMETER AllowMultiple Allows specification of multiple comma-separated consoles arguments .PARAMETER ParameterName The name of the dynamic parameter (typically "Console" or "Consoles") #> function Get-CyConsoleArgumentAutoCompleter { [CmdletBinding()] Param ( [parameter(Mandatory=$False)] [Switch]$AllowMultiple = $False, [parameter(Mandatory=$False)] [Switch]$Mandatory, [parameter(Mandatory=$True)] [String]$ParameterName, [parameter(Mandatory=$False)] [String]$ParameterSetName ) $consoleIds = (Get-CyConsoleConfig).ConsoleId if ($consoleIds.Count -eq 0) { return $null } $consolesAttributes = new-object -Type System.Collections.ObjectModel.Collection[System.Attribute] $consolesParam = new-object System.Management.Automation.ParameterAttribute $consolesParam.Mandatory = $Mandatory $consolesParam.HelpMessage = "Enter one or more console IDs, separated by commas" if ([String]::Empty -ne $ParameterSetName) { $consolesParam.ParameterSetName = $ParameterSetName } $consolesAttributes.Add($consolesParam) $consoleIdsValidateSetAttribute = New-Object -type System.Management.Automation.ValidateSetAttribute($consoleIds) $consolesAttributes.Add($consoleIdsValidateSetAttribute) if ($AllowMultiple) { $consoleIdsRuntimeDefinedParam = new-object -Type System.Management.Automation.RuntimeDefinedParameter("$($ParameterName)", [String[]], $consolesAttributes) } else { $consoleIdsRuntimeDefinedParam = new-object -Type System.Management.Automation.RuntimeDefinedParameter("$($ParameterName)", [String], $consolesAttributes) } $paramDictionary = new-object -Type System.Management.Automation.RuntimeDefinedParameterDictionary $paramDictionary.Add("$($ParameterName)", $consoleIdsRuntimeDefinedParam) return $paramDictionary } |