internal bool IsHeaderLineTooLong(long nameLength, out bool merge)
{
int num = 0;
bool result = false;
merge = false;
for (int i = 0; i < this.lines.Count; i++)
{
int num2;
int num3;
byte[] data = this.lines[i].GetData(out num2, out num3);
bool flag = MimeScan.IsLWSP(data[num2]);
if (num != 0 && !flag)
{
result = true;
merge = true;
}
num += num3;
if (i == 0 && (long)num3 + nameLength + 1L > 998L)
{
result = true;
}
}
return(result);
}
internal static long WriteLines(MimeStringList lines, Stream stream)
{
if (lines.Count == 0)
{
MimeStringLength mimeStringLength = new MimeStringLength(0);
return(Header.WriteLineEnd(stream, ref mimeStringLength));
}
long num = 0L;
for (int i = 0; i < lines.Count; i++)
{
int num2;
int num3;
byte[] data = lines[i].GetData(out num2, out num3);
if (num3 != 0)
{
if (!MimeScan.IsLWSP(data[num2]))
{
stream.Write(MimeString.Space, 0, MimeString.Space.Length);
num += (long)MimeString.Space.Length;
}
stream.Write(data, num2, num3);
num += (long)num3;
}
MimeStringLength mimeStringLength2 = new MimeStringLength(0);
num += Header.WriteLineEnd(stream, ref mimeStringLength2);
}
return(num);
}
// Token: 0x0600032A RID: 810 RVA: 0x000120A0 File Offset: 0x000102A0
private bool FindBoundary(byte[] data, int line, int nextNL, out int nextBoundaryLevel, out bool nextBoundaryEnd)
{
while (nextNL > line && MimeScan.IsLWSP(data[nextNL - 1]))
{
nextNL--;
}
uint num = ByteString.ComputeCrc(data, line, nextNL - line);
bool flag;
if (this.currentLevel.IsBoundary(data, line, nextNL - line, (long)((ulong)num), out flag))
{
nextBoundaryLevel = this.parseStackTop;
nextBoundaryEnd = flag;
return(true);
}
for (int i = this.parseStackTop - 1; i >= 0; i--)
{
if (this.parseStack[i].IsBoundary(data, line, nextNL - line, (long)((ulong)num), out flag))
{
nextBoundaryLevel = i;
nextBoundaryEnd = flag;
return(true);
}
}
nextBoundaryLevel = -1;
nextBoundaryEnd = false;
return(false);
}
public void ParseParameterValue(ref MimeStringList value, ref bool goodValue, bool handleISO2022)
{
MimeStringList mimeStringList = default(MimeStringList);
goodValue = true;
while (this.position != this.end || this.ParseNextLine())
{
byte b = this.bytes[this.position];
if (b == 34)
{
value.Reset();
mimeStringList.Reset();
this.ParseQString(true, ref value, handleISO2022);
return;
}
if (b == 40 || MimeScan.IsLWSP(b))
{
this.ParseCFWS(true, ref mimeStringList, handleISO2022);
}
else
{
if (b == 59)
{
return;
}
int num = this.position;
do
{
int num2 = 1;
if (!MimeScan.IsToken(b))
{
if (this.allowUTF8 && b >= 128)
{
if (!MimeScan.IsUTF8NonASCII(this.bytes, this.position, this.end, out num2))
{
num2 = 1;
goodValue = false;
}
}
else
{
goodValue = false;
}
}
this.position += num2;
if (this.position == this.end)
{
break;
}
b = this.bytes[this.position];
}while (b != 59 && b != 40 && !MimeScan.IsLWSP(b));
value.TakeOverAppend(ref mimeStringList);
value.AppendFragment(new MimeString(this.bytes, num, this.position - num));
}
}
}
// Token: 0x06000251 RID: 593 RVA: 0x0000AEB8 File Offset: 0x000090B8
internal static bool IsEncodingRequired(string value, bool allowUTF8)
{
if (string.IsNullOrEmpty(value))
{
return(false);
}
char[] array = new char[1];
int num = 0;
foreach (char c in value)
{
if (c < '\u0080')
{
if (MimeScan.IsEncodingRequired((byte)c))
{
return(true);
}
if (MimeScan.IsLWSP((byte)c))
{
num = 0;
}
else
{
num++;
}
}
else
{
if (!allowUTF8)
{
return(true);
}
array[0] = c;
num += ByteString.StringToBytesCount(new string(array), allowUTF8);
}
if (998 < num + 1)
{
return(true);
}
}
return(false);
}
private bool ParseEncodedWord(string lastEncodedWordCharsetName, string lastEncodedWordLanguage, ref byte[] byteBuffer, out string encodedWordCharsetName, out string encodedWordLanguage, out byte bOrQ, out ValuePosition encodedWordContentStart, out ValuePosition encodedWordContentEnd)
{
encodedWordCharsetName = null;
encodedWordLanguage = null;
bOrQ = 0;
ValuePosition valuePosition = default(ValuePosition);
encodedWordContentEnd = valuePosition;
encodedWordContentStart = (encodedWordContentEnd = valuePosition);
int num = this.iterator.Get();
if (this.iterator.Get() != 63)
{
return(false);
}
if (byteBuffer == null)
{
byteBuffer = ScratchPad.GetByteBuffer(Math.Max(this.maxCharsetNameLength + 1, Math.Min(1024, this.iterator.TotalLength)));
}
int num2 = -1;
int i;
for (i = 0; i < this.maxCharsetNameLength + 1; i++)
{
num = this.iterator.Get();
if (!ValueDecoder.Is2047Token((byte)num))
{
break;
}
byteBuffer[i] = (byte)num;
if (num2 == -1 && num == 42)
{
num2 = i;
}
}
if (i == this.maxCharsetNameLength + 1 || num != 63 || i == 0 || num2 == 0)
{
return(false);
}
num = this.iterator.Get();
bOrQ = ((num == 66 || num == 98) ? 66 : ((num == 81 || num == 113) ? 81 : 0));
if (bOrQ == 0 || this.iterator.Get() != 63)
{
return(false);
}
if (num2 != -1)
{
int num3 = num2 + 1;
int num4 = i - (num2 + 1);
i = num2;
if (num4 != 0)
{
if (lastEncodedWordLanguage != null && num4 == lastEncodedWordLanguage.Length)
{
int num5 = 0;
while (num5 < num4 && lastEncodedWordLanguage[num5] == (char)byteBuffer[num3 + num5])
{
num5++;
}
if (num5 != num4)
{
encodedWordLanguage = ByteString.BytesToString(byteBuffer, num3, num4, false);
}
else
{
encodedWordLanguage = lastEncodedWordLanguage;
}
}
else
{
encodedWordLanguage = ByteString.BytesToString(byteBuffer, num3, num4, false);
}
}
}
if (lastEncodedWordCharsetName != null && i == lastEncodedWordCharsetName.Length)
{
int num6 = 0;
while (num6 < i && lastEncodedWordCharsetName[num6] == (char)byteBuffer[num6])
{
num6++;
}
if (num6 != i)
{
encodedWordCharsetName = ByteString.BytesToString(byteBuffer, 0, i, false);
}
else
{
encodedWordCharsetName = lastEncodedWordCharsetName;
}
}
else
{
encodedWordCharsetName = ByteString.BytesToString(byteBuffer, 0, i, false);
}
encodedWordContentStart = this.iterator.CurrentPosition;
bool flag = false;
for (;;)
{
encodedWordContentEnd = this.iterator.CurrentPosition;
num = this.iterator.Get();
if (num == -1)
{
break;
}
if (MimeScan.IsLWSP((byte)num))
{
flag = true;
}
else
{
if (num == 63)
{
num = this.iterator.Get();
if (num == -1)
{
return(false);
}
if (num == 61)
{
return(true);
}
this.iterator.Unget();
if (bOrQ != 81)
{
return(false);
}
}
else if (num == 61 && flag)
{
num = this.iterator.Get();
if (num == -1)
{
return(false);
}
if (num == 63)
{
goto Block_33;
}
this.iterator.Unget();
}
flag = false;
}
}
return(false);
Block_33:
this.iterator.Unget();
this.iterator.Unget();
return(false);
}