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153 lines
3.7 KiB
153 lines
3.7 KiB
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR) |
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#pragma warning disable |
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using System; |
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using System.Text; |
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using BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities; |
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namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Asn1 |
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{ |
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/** |
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* Der IA5String object - this is an ascii string. |
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*/ |
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public class DerIA5String |
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: DerStringBase |
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{ |
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private readonly string str; |
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/** |
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* return a IA5 string from the passed in object |
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* |
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* @exception ArgumentException if the object cannot be converted. |
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*/ |
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public static DerIA5String GetInstance( |
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object obj) |
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{ |
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if (obj == null || obj is DerIA5String) |
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{ |
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return (DerIA5String)obj; |
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} |
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throw new ArgumentException("illegal object in GetInstance: " + BestHTTP.SecureProtocol.Org.BouncyCastle.Utilities.Platform.GetTypeName(obj)); |
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} |
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/** |
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* return an IA5 string from a tagged object. |
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* |
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* @param obj the tagged object holding the object we want |
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* @param explicitly true if the object is meant to be explicitly |
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* tagged false otherwise. |
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* @exception ArgumentException if the tagged object cannot |
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* be converted. |
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*/ |
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public static DerIA5String GetInstance( |
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Asn1TaggedObject obj, |
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bool isExplicit) |
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{ |
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Asn1Object o = obj.GetObject(); |
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if (isExplicit || o is DerIA5String) |
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{ |
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return GetInstance(o); |
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} |
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return new DerIA5String(((Asn1OctetString)o).GetOctets()); |
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} |
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/** |
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* basic constructor - with bytes. |
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*/ |
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public DerIA5String( |
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byte[] str) |
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: this(Strings.FromAsciiByteArray(str), false) |
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{ |
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} |
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/** |
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* basic constructor - without validation. |
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*/ |
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public DerIA5String( |
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string str) |
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: this(str, false) |
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{ |
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} |
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/** |
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* Constructor with optional validation. |
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* |
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* @param string the base string to wrap. |
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* @param validate whether or not to check the string. |
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* @throws ArgumentException if validate is true and the string |
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* contains characters that should not be in an IA5String. |
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*/ |
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public DerIA5String( |
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string str, |
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bool validate) |
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{ |
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if (str == null) |
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throw new ArgumentNullException("str"); |
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if (validate && !IsIA5String(str)) |
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throw new ArgumentException("string contains illegal characters", "str"); |
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this.str = str; |
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} |
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public override string GetString() |
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{ |
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return str; |
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} |
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public byte[] GetOctets() |
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{ |
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return Strings.ToAsciiByteArray(str); |
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} |
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internal override int EncodedLength(bool withID) |
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{ |
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return Asn1OutputStream.GetLengthOfEncodingDL(withID, str.Length); |
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} |
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internal override void Encode(Asn1OutputStream asn1Out, bool withID) |
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{ |
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asn1Out.WriteEncodingDL(withID, Asn1Tags.IA5String, GetOctets()); |
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} |
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protected override int Asn1GetHashCode() |
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{ |
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return this.str.GetHashCode(); |
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} |
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protected override bool Asn1Equals( |
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Asn1Object asn1Object) |
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{ |
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DerIA5String other = asn1Object as DerIA5String; |
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if (other == null) |
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return false; |
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return this.str.Equals(other.str); |
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} |
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/** |
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* return true if the passed in String can be represented without |
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* loss as an IA5String, false otherwise. |
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* |
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* @return true if in printable set, false otherwise. |
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*/ |
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public static bool IsIA5String( |
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string str) |
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{ |
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foreach (char ch in str) |
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{ |
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if (ch > 0x007f) |
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{ |
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return false; |
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} |
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} |
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return true; |
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} |
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} |
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} |
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#pragma warning restore |
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#endif
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