DerGeneralString.cs 3.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121
  1. #if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
  2. #pragma warning disable
  3. using System;
  4. using System.IO;
  5. using Best.HTTP.SecureProtocol.Org.BouncyCastle.Utilities;
  6. namespace Best.HTTP.SecureProtocol.Org.BouncyCastle.Asn1
  7. {
  8. public class DerGeneralString
  9. : DerStringBase
  10. {
  11. internal class Meta : Asn1UniversalType
  12. {
  13. internal static readonly Asn1UniversalType Instance = new Meta();
  14. private Meta() : base(typeof(DerGeneralString), Asn1Tags.GeneralString) {}
  15. internal override Asn1Object FromImplicitPrimitive(DerOctetString octetString)
  16. {
  17. return CreatePrimitive(octetString.GetOctets());
  18. }
  19. }
  20. public static DerGeneralString GetInstance(object obj)
  21. {
  22. if (obj == null)
  23. return null;
  24. if (obj is DerGeneralString derGeneralString)
  25. return derGeneralString;
  26. if (obj is IAsn1Convertible asn1Convertible)
  27. {
  28. Asn1Object asn1Object = asn1Convertible.ToAsn1Object();
  29. if (asn1Object is DerGeneralString converted)
  30. return converted;
  31. }
  32. else if (obj is byte[] bytes)
  33. {
  34. try
  35. {
  36. return (DerGeneralString)Meta.Instance.FromByteArray(bytes);
  37. }
  38. catch (IOException e)
  39. {
  40. throw new ArgumentException("failed to construct general string from byte[]: " + e.Message);
  41. }
  42. }
  43. throw new ArgumentException("illegal object in GetInstance: " + Org.BouncyCastle.Utilities.Platform.GetTypeName(obj));
  44. }
  45. public static DerGeneralString GetInstance(Asn1TaggedObject taggedObject, bool declaredExplicit)
  46. {
  47. return (DerGeneralString)Meta.Instance.GetContextInstance(taggedObject, declaredExplicit);
  48. }
  49. private readonly byte[] m_contents;
  50. public DerGeneralString(string str)
  51. {
  52. if (str == null)
  53. throw new ArgumentNullException("str");
  54. m_contents = Strings.ToAsciiByteArray(str);
  55. }
  56. public DerGeneralString(byte[] contents)
  57. : this(contents, true)
  58. {
  59. }
  60. internal DerGeneralString(byte[] contents, bool clone)
  61. {
  62. if (null == contents)
  63. throw new ArgumentNullException("contents");
  64. m_contents = clone ? Arrays.Clone(contents) : contents;
  65. }
  66. public override string GetString()
  67. {
  68. return Strings.FromAsciiByteArray(m_contents);
  69. }
  70. public byte[] GetOctets()
  71. {
  72. return Arrays.Clone(m_contents);
  73. }
  74. internal override IAsn1Encoding GetEncoding(int encoding)
  75. {
  76. return new PrimitiveEncoding(Asn1Tags.Universal, Asn1Tags.GeneralString, m_contents);
  77. }
  78. internal override IAsn1Encoding GetEncodingImplicit(int encoding, int tagClass, int tagNo)
  79. {
  80. return new PrimitiveEncoding(tagClass, tagNo, m_contents);
  81. }
  82. protected override bool Asn1Equals(Asn1Object asn1Object)
  83. {
  84. DerGeneralString that = asn1Object as DerGeneralString;
  85. return null != that
  86. && Arrays.AreEqual(this.m_contents, that.m_contents);
  87. }
  88. protected override int Asn1GetHashCode()
  89. {
  90. return Arrays.GetHashCode(m_contents);
  91. }
  92. internal static DerGeneralString CreatePrimitive(byte[] contents)
  93. {
  94. return new DerGeneralString(contents, false);
  95. }
  96. }
  97. }
  98. #pragma warning restore
  99. #endif