WinSSH

0.8.3

Private/TestLDAP.ps1

                                Function TestLDAP {

    [CmdletBinding()]

    param (

        [Parameter(Mandatory=$True)]

        [string]$ADServerHostNameOrIP

    )

    # Make sure you CAN resolve $ADServerHostNameOrIP AND that we can get FQDN

    try {

        $ADServerNetworkInfo = [System.Net.Dns]::GetHostEntry($ADServerHostNameOrIP)

        if ($ADServerNetworkInfo.HostName -notmatch "\.") {

            $IP = $ADServerNetworkInfo.AddressList[0].IPAddressToString

            $ADServerNetworkInfo = [System.Net.Dns]::GetHostEntry($IP)

            if ($ADServerNetworkInfo.HostName -notmatch "\.") {

                throw "Can't resolve $ADServerHostNameOrIP FQDN! Halting!"

            }

        }

    }

    catch {

        Write-Error $_

        $global:FunctionResult = "1"

        return

    }

    $ADServerFQDN = $ADServerNetworkInfo.HostName

    $LDAPPrep = "LDAP://" + $ADServerFQDN

    # Try Global Catalog First - It's faster and you can execute from a different domain and

    # potentially still get results

    try {

        $LDAP = $LDAPPrep + ":3269"

        # This does NOT throw an error because it doen't actually try to reach out to make the connection yet

        $Connection = [System.DirectoryServices.DirectoryEntry]($LDAP)

        # This WILL throw an error

        $Connection.Close()

        $GlobalCatalogConfiguredForSSL = $True

    } 

    catch {

        if ($_.Exception.ToString() -match "The server is not operational") {

            Write-Warning "Either can't find LDAP Server or SSL on Global Catalog (3269) is not operational!"

        }

        elseif ($_.Exception.ToString() -match "The user name or password is incorrect") {

            Write-Warning "The current user $(whoami) does not have access!"

        }

        else {

            Write-Error $_

        }

    }

    try {

        $LDAP = $LDAPPrep + ":3268"

        $Connection = [System.DirectoryServices.DirectoryEntry]($LDAP)

        $Connection.Close()

        $GlobalCatalogConfigured = $True

    } 

    catch {

        if ($_.Exception.ToString() -match "The server is not operational") {

            Write-Warning "Either can't find LDAP Server or Global Catalog (3268) is not operational!"

        }

        elseif ($_.Exception.ToString() -match "The user name or password is incorrect") {

            Write-Warning "The current user $(whoami) does not have access!"

        }

        else {

            Write-Error $_

        }

    }

    # Try the normal ports

    try {

        $LDAP = $LDAPPrep + ":636"

        # This does NOT throw an error because it doen't actually try to reach out to make the connection yet

        $Connection = [System.DirectoryServices.DirectoryEntry]($LDAP)

        # This WILL throw an error

        $Connection.Close()

        $ConfiguredForSSL = $True

    } 

    catch {

        if ($_.Exception.ToString() -match "The server is not operational") {

            Write-Warning "Can't find LDAP Server or SSL (636) is NOT configured! Check the value provided to the -ADServerHostNameOrIP parameter!"

        }

        elseif ($_.Exception.ToString() -match "The user name or password is incorrect") {

            Write-Warning "The current user $(whoami) does not have access! Halting!"

        }

        else {

            Write-Error $_

        }

    }

    try {

        $LDAP = $LDAPPrep + ":389"

        $Connection = [System.DirectoryServices.DirectoryEntry]($LDAP)

        $Connection.Close()

        $Configured = $True

    }

    catch {

        if ($_.Exception.ToString() -match "The server is not operational") {

            Write-Warning "Can't find LDAP Server (389)! Check the value provided to the -ADServerHostNameOrIP parameter!"

        }

        elseif ($_.Exception.ToString() -match "The user name or password is incorrect") {

            Write-Warning "The current user $(whoami) does not have access!"

        }

        else {

            Write-Error $_

        }

    }

    if (!$GlobalCatalogConfiguredForSSL -and !$GlobalCatalogConfigured -and !$ConfiguredForSSL -and !$Configured) {

        Write-Error "Unable to connect to $LDAPPrep! Halting!"

        $global:FunctionResult = "1"

        return

    }

    [System.Collections.ArrayList]$PortsThatWork = @()

    if ($GlobalCatalogConfigured) {$null = $PortsThatWork.Add("3268")}

    if ($GlobalCatalogConfiguredForSSL) {$null = $PortsThatWork.Add("3269")}

    if ($Configured) {$null = $PortsThatWork.Add("389")}

    if ($ConfiguredForSSL) {$null = $PortsThatWork.Add("636")}

    [pscustomobject]@{

        DirectoryEntryInfo                  = $Connection

        LDAPBaseUri                         = $LDAPPrep

        GlobalCatalogConfigured3268         = if ($GlobalCatalogConfigured) {$True} else {$False}

        GlobalCatalogConfiguredForSSL3269   = if ($GlobalCatalogConfiguredForSSL) {$True} else {$False}

        Configured389                       = if ($Configured) {$True} else {$False}

        ConfiguredForSSL636                 = if ($ConfiguredForSSL) {$True} else {$False}

        PortsThatWork                       = $PortsThatWork

    }

}

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# SIG # End signature block