106 lines
4.4 KiB
VB.net
106 lines
4.4 KiB
VB.net
Imports Limilabs.Mail
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Imports Limilabs.Mail.MSG
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Imports System.Text.RegularExpressions
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Public Class ClassEmailHeaderExtractor
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'''' <summary>
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'''' Extrahiert die Headerinformationen aus einem msg Objekt mithilfe der MSG.NET Klasse
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'''' </summary>
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'''' <param name="msg">Eine Email vom Typ Msg.Message</param>
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'''' <returns>Headerinformationen als String oder Nothing wenn ein Fehler aufgetreten ist.</returns>
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'Public Shared Function getMessageHeaders(msg As Msg.Message)
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' Try
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' Dim headers = msg.TransportMessageHeaders.Replace(vbCrLf, " ")
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' Return headers
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' Catch ex As Exception
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' Return Nothing
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' End Try
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'End Function
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'''' <summary>
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'''' Extrahiert aus den Headerinformationen anhand einer Liste von Regular Expressions eine Absenderadresse.
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'''' </summary>
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'''' <param name="messageHeaders">Headerinformationen die von getMessageHeaders erzeugt wurden.</param>
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'''' <param name="RegexList">Eine Liste von Regular Expressions</param>
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'''' <param name="RegexGroup">Die Ergebnisgruppe, die die Adresse enthält</param>
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'''' <returns>Eine Emailadresse oder Nothing, wenn keine der Regular Expressions ein Ergebnis lieferte.</returns>
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'Public Shared Function extractFromAddress(messageHeaders As String, RegexList As List(Of Regex), Optional RegexGroup As Integer = 1)
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' If IsNothing(messageHeaders) Then
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' Return Nothing
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' End If
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' For Each rx In RegexList
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' Dim match As Match = rx.Match(messageHeaders)
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' Dim email As String = match.Groups(RegexGroup).Value
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' If Not String.IsNullOrWhiteSpace(email) Then
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' Return email
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' End If
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' Next
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' Return Nothing
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'End Function
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'Public Shared Function extractFromHeader(messageHeaders As String, Regex As String)
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' Try
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' Dim result = Nothing
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' Dim i As Integer = 0
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' If IsNothing(messageHeaders) Then
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' Return Nothing
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' End If
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' ' einen Regulären Ausdruck laden
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' Dim strRegex As String = Regex
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' Dim myRegex As New Regex(strRegex, RegexOptions.IgnorePatternWhitespace Or RegexOptions.IgnoreCase)
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' Dim strTargetString As String = messageHeaders.Trim
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' ' die Vorkommen im String auslesen
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' For Each myMatch As Match In myRegex.Matches(strTargetString)
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' If myMatch.Success Then
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' LOGGER.Debug("Match success. Matched Value: [{0}]", myMatch.Value)
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' If myMatch.Value <> "" Then
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' If i = 0 Then
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' result = myMatch.Value.ToString
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' Else
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' result = result & ";" & myMatch.Value.ToString
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' End If
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' i += 1
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' End If
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' Else
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' LOGGER.Debug("Match failed!")
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' End If
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' Next
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' LOGGER.Debug("Extracted value: [{0}]", result)
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' Return result
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' Catch ex As Exception
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' LOGGER.Error(ex)
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' MsgBox("Unexpected Error in extractFromHeader: " & vbNewLine & ex.Message, MsgBoxStyle.Critical)
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' Return Nothing
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' End Try
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'End Function
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'''' <summary>
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'''' Extrahiert aus den Headerinformationen anhand einer Liste von Regular Expressions eine Empfängeradresse.
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'''' </summary>
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'''' <param name="messageHeaders">Headerinformationen die von getMessageHeaders erzeugt wurden.</param>
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'''' <param name="RegexList">Eine Liste von Regular Expressions</param>
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'''' <param name="RegexGroup">Die Ergebnisgruppe, die die Adresse enthält</param>
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'''' <returns>Eine Emailadresse oder Nothing, wenn keine der Regular Expressions ein Ergebnis lieferte.</returns>
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'Public Shared Function extractToAddress(messageHeaders As String, RegexList As List(Of Regex), Optional RegexGroup As Integer = 1)
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' If IsNothing(messageHeaders) Then
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' Return Nothing
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' End If
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' For Each rx In RegexList
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' Dim match As Match = rx.Match(messageHeaders)
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' Dim email As String = match.Groups(RegexGroup).Value
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' If Not String.IsNullOrWhiteSpace(email) Then
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' Return email
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' End If
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' Next
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' Return Nothing
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'End Function
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End Class
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