PowerDataOps

1.0.0.151

src/Connection/Out-XrmConnectionStringParameter.ps1

<#
    .SYNOPSIS
    Extract parameter value from connectionstring.
    
    .DESCRIPTION
    Output connection string parameter value.

    .PARAMETER ConnectionString
    Connection string.

    .PARAMETER ParameterName
    Parameter name.

    .PARAMETER RaiseErrorIfMising
    If parameter is not found, throw an exception.
#>
function Out-XrmConnectionStringParameter {
    [CmdletBinding()]
    param
    (
        [Parameter(Mandatory = $true, ValueFromPipeline)]
        [String]
        $ConnectionString,

        [Parameter(Mandatory = $true)]
        [String]
        $ParameterName,

        [Parameter(Mandatory = $false)]
        [Switch]
        $RaiseErrorIfMising
    )
    begin {  
        $StopWatch = [System.Diagnostics.Stopwatch]::StartNew(); 
        Trace-XrmFunction -Name $MyInvocation.MyCommand.Name -Stage Start -Parameters ($MyInvocation.MyCommand.Parameters); 
    }    
    process {

        $alternateParameters = @{
            "Password" = @("password")
            "UserName" = @("Username", "User Name", "UserId", "User Id")
            "AuthType" = @("authtype", "Authtype", "Auth Type", "AuthenticationType")
            "ClientId" = @("appid", "AppId", "ApplicationId")
            "ClientSecret" = @("clientSecret", "Clientsecret", "clientsecret", "Secret")
            "Thumbprint" = @("CertThumbprint")
        };
        
        $ValidParameterName = $ParameterName;
        if (-not $ConnectionString.Contains($ValidParameterName)) {
            $alternateParameters[$ParameterName] | ForEach-Object {
                if ($ConnectionString.Contains($_)) {
                    $ValidParameterName = $_;
                }
            }
        }
        
        if (-not $ConnectionString.Contains($ValidParameterName)) {
            if ($RaiseErrorIfMising) {
                throw "Parameter '$ValidParameterName' is not in given connectionstring!";
            }
            return $null;
        }

        $startIndex = $ConnectionString.IndexOf("$($ValidParameterName)=");
        if($startIndex -lt 0)
        {
            return $null;
        }
        $stopIndex = $ConnectionString.IndexOf(";", $startIndex);
        
        $value = $ConnectionString;
        if ($stopIndex -ne -1) {
            $value = $value.Remove($stopIndex);
        }
        $value = $value.Substring($startIndex);
        $value = $value.Replace("$($ValidParameterName)=", "");
        
        $value;
    }
    end {
        $StopWatch.Stop();
        Trace-XrmFunction -Name $MyInvocation.MyCommand.Name -Stage Stop -StopWatch $StopWatch;
    }
}

Export-ModuleMember -Function Out-XrmConnectionStringParameter -Alias *;