private static string punycode_decode(string ascii)
{
if (ascii.Length == 0)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
int length1 = ascii.Length;
int num1 = (int)byte.MaxValue;
string str1 = ascii;
int index1 = str1.Length - 1;
int num2 = IdnMapping.IsDot(str1[index1]) ? 0 : 1;
int num3 = num1 - num2;
if (length1 > num3)
{
string key = "Argument_IdnBadNameSize";
object[] objArray = new object[1];
int index2 = 0;
int num4 = (int)byte.MaxValue;
string str2 = ascii;
int index3 = str2.Length - 1;
int num5 = IdnMapping.IsDot(str2[index3]) ? 0 : 1;
// ISSUE: variable of a boxed type
__Boxed <int> local = (ValueType)(num4 - num5);
objArray[index2] = (object)local;
throw new ArgumentException(Environment.GetResourceString(key, objArray), "ascii");
}
StringBuilder stringBuilder1 = new StringBuilder(ascii.Length);
int num6 = 0;
int startIndex = 0;
int index4 = 0;
while (num6 < ascii.Length)
{
num6 = ascii.IndexOf('.', startIndex);
if (num6 < 0 || num6 > ascii.Length)
{
num6 = ascii.Length;
}
if (num6 == startIndex)
{
if (num6 != ascii.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
break;
}
if (num6 - startIndex > 63)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
if (ascii.Length < "xn--".Length + startIndex || !ascii.Substring(startIndex, "xn--".Length).Equals("xn--", StringComparison.OrdinalIgnoreCase))
{
stringBuilder1.Append(ascii.Substring(startIndex, num6 - startIndex));
}
else
{
startIndex += "xn--".Length;
int num4 = ascii.LastIndexOf('-', num6 - 1);
if (num4 == num6 - 1)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
int num5;
if (num4 <= startIndex)
{
num5 = 0;
}
else
{
num5 = num4 - startIndex;
for (int index2 = startIndex; index2 < startIndex + num5; ++index2)
{
if ((int)ascii[index2] > (int)sbyte.MaxValue)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
stringBuilder1.Append((int)ascii[index2] < 65 || (int)ascii[index2] > 90 ? ascii[index2] : (char)((int)ascii[index2] - 65 + 97));
}
}
int num7 = startIndex + (num5 > 0 ? num5 + 1 : 0);
int num8 = 128;
int num9 = 72;
int num10 = 0;
int num11 = 0;
label_49:
while (num7 < num6)
{
int num12 = num10;
int num13 = 1;
int num14 = 36;
while (num7 < num6)
{
int num15 = IdnMapping.decode_digit(ascii[num7++]);
if (num15 > (134217727 - num10) / num13)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
num10 += num15 * num13;
int num16 = num14 <= num9 ? 1 : (num14 >= num9 + 26 ? 26 : num14 - num9);
if (num15 >= num16)
{
if (num13 > 134217727 / (36 - num16))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
num13 *= 36 - num16;
num14 += 36;
}
else
{
num9 = IdnMapping.adapt(num10 - num12, stringBuilder1.Length - index4 - num11 + 1, num12 == 0);
if (num10 / (stringBuilder1.Length - index4 - num11 + 1) > 134217727 - num8)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
num8 += num10 / (stringBuilder1.Length - index4 - num11 + 1);
int num17 = num10 % (stringBuilder1.Length - index4 - num11 + 1);
if (num8 < 0 || num8 > 1114111 || num8 >= 55296 && num8 <= 57343)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
string str2 = char.ConvertFromUtf32(num8);
int index2;
if (num11 > 0)
{
int num18 = num17;
index2 = index4;
while (num18 > 0)
{
if (index2 >= stringBuilder1.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
if (char.IsSurrogate(stringBuilder1[index2]))
{
++index2;
}
--num18;
++index2;
}
}
else
{
index2 = index4 + num17;
}
stringBuilder1.Insert(index2, str2);
if (IdnMapping.IsSupplementary(num8))
{
++num11;
}
num10 = num17 + 1;
goto label_49;
}
}
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
bool flag = false;
BidiCategory bidiCategory = CharUnicodeInfo.GetBidiCategory(stringBuilder1.ToString(), index4);
switch (bidiCategory)
{
case BidiCategory.RightToLeft:
case BidiCategory.RightToLeftArabic:
flag = true;
break;
}
for (int index2 = index4; index2 < stringBuilder1.Length; ++index2)
{
if (!char.IsLowSurrogate(stringBuilder1.ToString(), index2))
{
bidiCategory = CharUnicodeInfo.GetBidiCategory(stringBuilder1.ToString(), index2);
if (flag && bidiCategory == BidiCategory.LeftToRight || !flag && (bidiCategory == BidiCategory.RightToLeft || bidiCategory == BidiCategory.RightToLeftArabic))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadBidi"), "ascii");
}
}
}
if (flag && bidiCategory != BidiCategory.RightToLeft && bidiCategory != BidiCategory.RightToLeftArabic)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadBidi"), "ascii");
}
}
if (num6 - startIndex > 63)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
if (num6 != ascii.Length)
{
stringBuilder1.Append('.');
}
startIndex = num6 + 1;
index4 = stringBuilder1.Length;
}
int length2 = stringBuilder1.Length;
int num19 = (int)byte.MaxValue;
StringBuilder stringBuilder2 = stringBuilder1;
int index5 = stringBuilder2.Length - 1;
int num20 = IdnMapping.IsDot(stringBuilder2[index5]) ? 0 : 1;
int num21 = num19 - num20;
if (length2 > num21)
{
string key = "Argument_IdnBadNameSize";
object[] objArray = new object[1];
int index2 = 0;
int num4 = (int)byte.MaxValue;
StringBuilder stringBuilder3 = stringBuilder1;
int index3 = stringBuilder3.Length - 1;
int num5 = IdnMapping.IsDot(stringBuilder3[index3]) ? 0 : 1;
// ISSUE: variable of a boxed type
__Boxed <int> local = (ValueType)(num4 - num5);
objArray[index2] = (object)local;
throw new ArgumentException(Environment.GetResourceString(key, objArray), "ascii");
}
return(stringBuilder1.ToString());
}
// Token: 0x06002FE3 RID: 12259 RVA: 0x000B7D34 File Offset: 0x000B5F34
private static string punycode_decode(string ascii)
{
if (ascii.Length == 0)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
if (ascii.Length > 255 - (IdnMapping.IsDot(ascii[ascii.Length - 1]) ? 0 : 1))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadNameSize", new object[]
{
255 - (IdnMapping.IsDot(ascii[ascii.Length - 1]) ? 0 : 1)
}), "ascii");
}
StringBuilder stringBuilder = new StringBuilder(ascii.Length);
int i = 0;
int num = 0;
int num2 = 0;
while (i < ascii.Length)
{
i = ascii.IndexOf('.', num);
if (i < 0 || i > ascii.Length)
{
i = ascii.Length;
}
if (i == num)
{
if (i != ascii.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
break;
}
else
{
if (i - num > 63)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
if (ascii.Length < "xn--".Length + num || !ascii.Substring(num, "xn--".Length).Equals("xn--", StringComparison.OrdinalIgnoreCase))
{
stringBuilder.Append(ascii.Substring(num, i - num));
}
else
{
num += "xn--".Length;
int num3 = ascii.LastIndexOf('-', i - 1);
if (num3 == i - 1)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
int num4;
if (num3 <= num)
{
num4 = 0;
}
else
{
num4 = num3 - num;
for (int j = num; j < num + num4; j++)
{
if (ascii[j] > '\u007f')
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
stringBuilder.Append((ascii[j] >= 'A' && ascii[j] <= 'Z') ? (ascii[j] - 'A' + 'a') : ascii[j]);
}
}
int k = num + ((num4 > 0) ? (num4 + 1) : 0);
int num5 = 128;
int num6 = 72;
int num7 = 0;
int num8 = 0;
IL_40D:
while (k < i)
{
int num9 = num7;
int num10 = 1;
int num11 = 36;
while (k < i)
{
int num12 = IdnMapping.decode_digit(ascii[k++]);
if (num12 > (134217727 - num7) / num10)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
num7 += num12 * num10;
int num13 = (num11 <= num6) ? 1 : ((num11 >= num6 + 26) ? 26 : (num11 - num6));
if (num12 >= num13)
{
if (num10 > 134217727 / (36 - num13))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
num10 *= 36 - num13;
num11 += 36;
}
else
{
num6 = IdnMapping.adapt(num7 - num9, stringBuilder.Length - num2 - num8 + 1, num9 == 0);
if (num7 / (stringBuilder.Length - num2 - num8 + 1) > 134217727 - num5)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
num5 += num7 / (stringBuilder.Length - num2 - num8 + 1);
num7 %= stringBuilder.Length - num2 - num8 + 1;
if (num5 < 0 || num5 > 1114111 || (num5 >= 55296 && num5 <= 57343))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
string value = char.ConvertFromUtf32(num5);
int num14;
if (num8 > 0)
{
int l = num7;
num14 = num2;
while (l > 0)
{
if (num14 >= stringBuilder.Length)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
if (char.IsSurrogate(stringBuilder[num14]))
{
num14++;
}
l--;
num14++;
}
}
else
{
num14 = num2 + num7;
}
stringBuilder.Insert(num14, value);
if (IdnMapping.IsSupplementary(num5))
{
num8++;
}
num7++;
goto IL_40D;
}
}
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadPunycode"), "ascii");
}
bool flag = false;
BidiCategory bidiCategory = CharUnicodeInfo.GetBidiCategory(stringBuilder.ToString(), num2);
if (bidiCategory == BidiCategory.RightToLeft || bidiCategory == BidiCategory.RightToLeftArabic)
{
flag = true;
}
for (int m = num2; m < stringBuilder.Length; m++)
{
if (!char.IsLowSurrogate(stringBuilder.ToString(), m))
{
bidiCategory = CharUnicodeInfo.GetBidiCategory(stringBuilder.ToString(), m);
if ((flag && bidiCategory == BidiCategory.LeftToRight) || (!flag && (bidiCategory == BidiCategory.RightToLeft || bidiCategory == BidiCategory.RightToLeftArabic)))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadBidi"), "ascii");
}
}
}
if (flag && bidiCategory != BidiCategory.RightToLeft && bidiCategory != BidiCategory.RightToLeftArabic)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadBidi"), "ascii");
}
}
if (i - num > 63)
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadLabelSize"), "ascii");
}
if (i != ascii.Length)
{
stringBuilder.Append('.');
}
num = i + 1;
num2 = stringBuilder.Length;
}
}
if (stringBuilder.Length > 255 - (IdnMapping.IsDot(stringBuilder[stringBuilder.Length - 1]) ? 0 : 1))
{
throw new ArgumentException(Environment.GetResourceString("Argument_IdnBadNameSize", new object[]
{
255 - (IdnMapping.IsDot(stringBuilder[stringBuilder.Length - 1]) ? 0 : 1)
}), "ascii");
}
return(stringBuilder.ToString());
}