2019-07-03 14:28:44 +02:00
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;**************************************
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;*
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;* lhs_UUID.pbi
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;*
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;* (c) by René Linder
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;* (c) by Linder Hard- und Software
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;*
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;* Lizenz LGPL V2.1
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2019-07-04 13:55:13 +02:00
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Enumeration UUID_Version
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2019-07-03 14:28:44 +02:00
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#UUID_V1
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#UUID_V2
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#UUID_V3
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#UUID_V4 ; Standard.
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#UUID_V5
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EndEnumeration
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Global UUID_CryptRandom.i
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CompilerIf #PB_Compiler_OS = #PB_OS_Web
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UUID_CryptRandom = 0
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CompilerElse
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If OpenCryptRandom()
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UUID_CryptRandom = 1
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Else
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UUID_CryptRandom = 0
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EndIf
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CompilerEndIf
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Procedure.s CreateUUID(Type.i=#UUID_V4, String.s="")
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;[T] CreateUUID(Type.i, String.s="")
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;[D] Gibt eine UUID des Entsprechenden Types als String zurück.
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;[D] Derzeit nur Version 4 Implementiert.
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;[V] 0.0.1
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;[M] 0.0.1
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Protected P_Type.i = Type.i
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Protected P_String.s = String.s
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Protected P_UUID.s = ""
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Protected Dim P_Numbers.a(16)
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;Protected P_Temp.a
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Protected P_Count.a
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Protected Key
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Structure Struc_UUID
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low.a
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EndStructure
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Select P_Type
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; Case #UUID_V1
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;
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; Case #UUID_V2
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;
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; Case #UUID_V3
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;
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; Case #UUID_V5
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Case 10
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Default ;#UUID_V4 RFC 4122 Konform
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;xx xx xx xx - xx xx - 4x xx - yx xx - xx xx xx xx xx xx
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Key = AllocateMemory(16)
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;Key = 0
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CompilerIf #PB_Compiler_OS <> #PB_OS_Web
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2019-07-04 13:55:13 +02:00
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If UUID_CryptRandom And Key
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2019-07-03 14:28:44 +02:00
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CryptRandomData(Key, 16)
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For P_Count = 0 To 15
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P_Numbers(P_Count) = PeekB(Key+P_Count)
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Next P_Count
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Else
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CompilerElse
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2019-07-04 13:55:13 +02:00
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If UUID_CryptRandom = 0
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2019-07-03 14:28:44 +02:00
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CompilerEndIf
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For P_Count = 0 To 15
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P_Numbers(P_Count) = Random(255)
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Next P_Count
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EndIf
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If Key
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FreeMemory(Key)
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EndIf
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P_Numbers(6) = Val("$4"+Right(RSet(Hex(P_Numbers(6), #PB_Byte), 2, "0"), 1))
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P_Numbers(8) = Val("%10"+Right(RSet(Bin(P_Numbers(8), #PB_Byte), 8, "0"), 6))
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P_UUID = ""
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For P_Count = 0 To 15
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If P_Count = 4 Or P_Count = 6 Or P_Count = 8 Or P_Count = 10
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P_UUID + "-"
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EndIf
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P_UUID + RSet(Hex(P_Numbers(P_Count), #PB_Byte), 2, "0")
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Next P_Count
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EndSelect
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ProcedureReturn P_UUID
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EndProcedure
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Procedure IsUUID(UUID.s , Type.i = #UUID_V4)
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;[T] IsUUID(UUID.s , Type.i = #UUID_V4)
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;[D] Prüft ob die UUID entsprechend Version 4 und RFC 4122 Konform ist.
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;[V] 0.0.1
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;[M] 0.0.1
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If Mid(UUID.s, 15,1) = Str(Type+1)
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If Left(Bin(Val("$"+Mid(UUID.s, 15,2)), #PB_Byte),2) = "10"
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ProcedureReturn #True
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EndIf
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EndIf
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ProcedureReturn #False
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EndProcedure
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