start redesign for zugferd rest api

2020-03-17 16:56:39 +01:00
parent efade78579
commit 33937a41d3
13 changed files with 571 additions and 315 deletions
--- a/Modules.Interfaces/ZUGFeRDInterface/FileGroups.vb
+++ b/Modules.Interfaces/ZUGFeRDInterface/FileGroups.vb
@@ -0,0 +1,82 @@
+Imports System.IO
+Imports System.Text.RegularExpressions
+Imports DigitalData.Modules.Logging
+
+Public Class FileGroups
+    Private _logger As Logger
+
+    Public Sub New(LogConfig As LogConfig)
+        _logger = LogConfig.GetLogger()
+    End Sub
+
+    ''' <summary>
+    ''' Group files by message id. Message id is extracted from filename.
+    ''' Filename is expected to be in the form: 1234@subdomain.company.com
+    ''' <param name="Files">The list of files to process</param>
+    ''' </summary>
+    Public Function GroupFiles(Files As List(Of FileInfo)) As Dictionary(Of String, List(Of FileInfo))
+        Dim oGrouped As New Dictionary(Of String, List(Of FileInfo))
+
+        If Files.Count = 0 Then
+            Return oGrouped
+        End If
+
+        For Each oFile In Files
+            Dim oMessageId = GetMessageIdFromFileName(oFile.Name)
+
+            If oMessageId Is Nothing Then
+                _logger.Warn("File {0} did not have the required filename-format!", oMessageId)
+                Continue For
+            End If
+
+            If oGrouped.ContainsKey(oMessageId) Then
+                oGrouped.Item(oMessageId).Add(oFile)
+            Else
+                oGrouped.Add(oMessageId, New List(Of FileInfo) From {oFile})
+            End If
+        Next
+
+        Return oGrouped
+    End Function
+
+    ''' <summary>
+    ''' Group files by message id. Message id is created from `FakeMessageIdDomain` and a random string 
+    ''' </summary>
+    ''' <param name="Files">The list of files to process</param>
+    ''' <param name="FakeMessageIdDomain">Arbitrary domain for message id generation. Example: sub.company.com</param>
+    ''' <returns></returns>
+    Public Function GroupFiles(Files As List(Of FileInfo), FakeMessageIdDomain As String) As Dictionary(Of String, List(Of FileInfo))
+        Dim oGrouped As New Dictionary(Of String, List(Of FileInfo))
+
+        If Files.Count = 0 Then
+            Return oGrouped
+        End If
+
+        For Each oFile In Files
+            Dim oIdentifier = Guid.NewGuid().ToString()
+            Dim oMessageId = $"{oIdentifier}@{FakeMessageIdDomain}"
+
+            If oGrouped.ContainsKey(oMessageId) Then
+                oGrouped.Item(oMessageId).Add(oFile)
+            Else
+                oGrouped.Add(oMessageId, New List(Of FileInfo) From {oFile})
+            End If
+        Next
+
+        Return oGrouped
+    End Function
+
+    Private Function GetMessageIdFromFileName(Filename As String) As String
+        ' Regex to find MessageId
+        ' See also: https://stackoverflow.com/questions/3968500/regex-to-validate-a-message-id-as-per-rfc2822
+        Dim oRegex = "(((([a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+(\.[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+)*)|(""(([\x01-\x08\x0B\x0C\x0E-\x1F\x7F]|[\x21\x23-\x5B\x5D-\x7E])|(\\[\x01-\x09\x0B\x0C\x0E-\x7F]))*""))@(([a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+(\.[a-zA-Z0-9!#$%&'*+/=?^_`{|}~-]+)*)|(\[(([\x01-\x08\x0B\x0C\x0E-\x1F\x7F]|[\x21-\x5A\x5E-\x7E])|(\\[\x01-\x09\x0B\x0C\x0E-\x7F]))*\]))))~.+"
+        Dim oMatch = Regex.Match(Filename, oRegex, RegexOptions.IgnoreCase)
+
+        If oMatch.Success Then
+            Dim oMessageId = oMatch.Groups(1).Value
+            Return oMessageId
+        Else
+            Return Nothing
+        End If
+    End Function
+End Class