system-credential.ps1
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# # system_credential.ps1 # # An array to store credentaials in memory (each object contains key,username,password) [System.Collections.ArrayList]$script:credentialsStore = @() function New-StoredCredential { <# .SYNOPSIS Adds a credentials to the in memory credential store. .DESCRIPTION A user will be asked to provide a username and password. Credentials will be stored in memory table. The credentails will be stored as secure string. You shall call Save-Credentials to save in memory table to file. .EXAMPLE New-StoredCredential -Key 'SMTP Credentials' -Message 'Provide a credentials for SMTP server' #> [CmdletBinding()] param ( [parameter(Mandatory=$true)] [string]$Key, [parameter()] [string]$Username, [parameter()] [Security.SecureString]$Password = ( new-object SecureString ), [parameter()] [string]$Message="Please provide credentials:" ) $credentialsItem = Get-StoredCredential($Key) if( $credentialsItem -ne $null ) { Write-Warning "A key '$Key' already exist!" return } $user = $null $pwd = $null if( $Username -eq '' -and $Password.Length -eq 0) { $credentials = Get-Credential -Message $Message $user = $credentials.UserName | ConvertTo-SecureString -AsPlainText -Force | ConvertFrom-SecureString $pwd = $credentials.Password | ConvertFrom-SecureString } else { $user = $Username | ConvertTo-SecureString -AsPlainText -Force | ConvertFrom-SecureString $pwd = $Password | ConvertFrom-SecureString } $credentialsItem = New-Object PSObject $credentialsItem | Add-Member �MemberType NoteProperty �Name Key �Value $Key $credentialsItem | Add-Member �MemberType NoteProperty �Name Username �Value $user $credentialsItem | Add-Member �MemberType NoteProperty �Name Password �Value $pwd $script:credentialsStore += $credentialsItem; } function Export-CredentialStore { <# .SYNOPSIS Saves an in memory credentials table to the CSV file. .EXAMPLE Save-CredentialStore -Path 'C:\MyScriptsConfiguration' #> [CmdletBinding()] param ( [parameter(Mandatory=$true)] [string]$Path ) $script:credentialsStore | Export-Csv -Path $Path -NoTypeInformation } function Import-CredentialStore { <# .SYNOPSIS Loads credentials from a CSV file and stores credentials in a memory table. .EXAMPLE Load-CredentialStore -Path 'C:\MyScriptsConfiguration' #> [CmdletBinding()] param ( [parameter(Mandatory=$true)] [string]$Path ) $script:credentialsStore = Import-Csv -Path $Path } function Get-StoredCredential { [CmdletBinding()] param ( [parameter(Mandatory=$true)] [string]$Key ) return $script:credentialsStore | Where-Object { $_.Key -eq $Key } } function TryGet-StoredCredential { [CmdletBinding()] param ( [parameter(Mandatory=$true)] [string]$Key ) $credentialsItem = Get-StoredCredential($Key) if( $credentialsItem -eq $null ) { New-StoredCredential($Key) return Get-StoredCredential($Key) } } function ConvertTo-PlainText { <# .SYNOPSIS Converts a secure string to the plain text .EXAMPLE ConvertTo-PlainText -String 'jsjdakdajskdajsd' #> [CmdletBinding()] param ( [parameter(Mandatory=$true)] [string]$Secret ) $secureString = $Secret | ConvertTo-SecureString $BSTR = [System.Runtime.InteropServices.Marshal]::SecureStringToBSTR( $secureString ) return [System.Runtime.InteropServices.Marshal]::PtrToStringAuto($BSTR) } Export-ModuleMember -Function ConvertTo-PlainText Export-ModuleMember -Function New-StoredCredential Export-ModuleMember -Function TryGet-StoredCredential Export-ModuleMember -Function Get-StoredCredential Export-ModuleMember -Function Import-CredentialStore Export-ModuleMember -Function Export-CredentialStore |