Imports System.IO
Imports System.Text.RegularExpressions
Imports System.Data.SqlDbType
Imports System.Data.SqlClient

Public Class clsValidator
    Dim m_result As String
    Property Resultmessage As String
        Get
            Return m_result
        End Get
        Set(value As String)
            m_result = value
        End Set
    End Property

    Dim Connectionstring As String
    Dim ds As New DataSet

    Sub New()
        Me.Connectionstring = Globals.sConnectionString
    End Sub

    Sub Get_Validatordata()
        Dim scmCmdToExecute As SqlCommand = New SqlCommand()
        Dim dtToReturn As DataTable = New DataTable()
        Dim sdaAdapter As SqlDataAdapter = New SqlDataAdapter(scmCmdToExecute)
        scmCmdToExecute.CommandText = "select * from URLValidate where aktiv=1 order by nreintrag"
        scmCmdToExecute.CommandType = CommandType.Text
        scmCmdToExecute.Connection = conn.scoDBConnection
        Try
            sdaAdapter.Fill(dtToReturn)
            ds.Tables.Clear()
            ds.Tables.Add(dtToReturn)
        Catch ex As Exception
            MsgBox("URL-Validator:" + ex.Message)
        Finally
            scmCmdToExecute.Dispose()
            sdaAdapter.Dispose()
        End Try
    End Sub



    Public Function VerifyString(ByVal inputstring As String) As Boolean
        If Trim(inputstring) = "" Then
            Return True
            Exit Function

        End If
        Get_Validatordata()
        Me.Resultmessage = ""
        For Each r As DataRow In ds.Tables(0).Rows
            If r.Item("Regex") = True Then
                Dim regex As System.Text.RegularExpressions.Regex = New System.Text.RegularExpressions.Regex(r.Item("Regel"))
                Dim match As Match = regex.Match(inputstring)
                If r.Item("zwingend") And match.Success = False Then
                    Me.Resultmessage = r.Item("Meldung")
                    Return False
                End If
                If r.Item("nicht_erlaubt") And match.Success = True Then
                    Me.Resultmessage = r.Item("Meldung")
                    Return False
                End If
                regex = Nothing
            Else
                Dim sp As String()
                sp = UCase(r.Item("Regel")).ToString.Split("|")
                Dim treffer As Integer = 0

                If r.Item("zwingend") = True Then
                    For i As Integer = 0 To sp.Count - 1
                        If sp(i) <> "|" Then If UCase(inputstring).IndexOf(sp(i)) > -1 Then treffer = treffer + 1
                    Next
                    If treffer = 0 Then
                        Me.Resultmessage = r.Item("meldung")
                        Return False
                    End If
                End If
                If r.Item("nicht_erlaubt") = True Then
                    For i As Integer = 0 To sp.Count - 1
                        If sp(i) <> "|" Then If UCase(inputstring).IndexOf(sp(i)) > -1 Then treffer = treffer + 1
                    Next
                    If treffer > 0 Then
                        Me.Resultmessage = r.Item("meldung")
                        Return False
                    End If
                End If
            End If

        Next

        Return True
    End Function
End Class