168 lines
3.8 KiB
C#
168 lines
3.8 KiB
C#
#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 PrintableString object.
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*/
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public class DerPrintableString
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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 printable 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 DerPrintableString GetInstance(
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object obj)
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{
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if (obj == null || obj is DerPrintableString)
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{
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return (DerPrintableString)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 a Printable 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 DerPrintableString 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 DerPrintableString)
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{
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return GetInstance(o);
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}
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return new DerPrintableString(Asn1OctetString.GetInstance(o).GetOctets());
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}
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/**
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* basic constructor - byte encoded string.
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*/
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public DerPrintableString(
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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 - this does not validate the string
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*/
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public DerPrintableString(
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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 a PrintableString.
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*/
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public DerPrintableString(
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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 && !IsPrintableString(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 void Encode(
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DerOutputStream derOut)
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{
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derOut.WriteEncoded(Asn1Tags.PrintableString, GetOctets());
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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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DerPrintableString other = asn1Object as DerPrintableString;
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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 a PrintableString, 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 IsPrintableString(
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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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return false;
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if (char.IsLetterOrDigit(ch))
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continue;
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// if (char.IsPunctuation(ch))
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// continue;
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switch (ch)
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{
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case ' ':
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case '\'':
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case '(':
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case ')':
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case '+':
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case '-':
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case '.':
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case ':':
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case '=':
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case '?':
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case '/':
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case ',':
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continue;
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}
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return false;
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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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