public bool ReadBoundary()
{
try {
string line = ReadLine();
while (line == "")
{
line = ReadLine();
}
if (line [0] != '-' || line [1] != '-')
{
return(false);
}
if (!StrUtils.EndsWith(line, boundary, false))
{
return(true);
}
} catch {
}
return(false);
}
/*
* byte[] MoveToNextBoundary (int maxlength)
* {
* long retval = 0;
* bool got_cr = false;
*
* long start = data.Position;
* int state = 0;
* int c = data.ReadByte ();
* while (true) {
* if (data.Position - start > maxlength)
* throw new InvalidDataException("data too long");
*
* if (c == -1)
* return -1;
*
* if (state == 0 && c == LF) {
* retval = data.Position - 1;
* if (got_cr)
* retval--;
* state = 1;
* c = data.ReadByte ();
* } else if (state == 0) {
* got_cr = (c == CR);
* c = data.ReadByte ();
* } else if (state == 1 && c == '-') {
* c = data.ReadByte ();
* if (c == -1)
* return -1;
*
* if (c != '-') {
* state = 0;
* got_cr = false;
* continue; // no ReadByte() here
* }
*
* int nread = data.Read (buffer, 0, buffer.Length);
* int bl = buffer.Length;
* if (nread != bl)
* return -1;
*
* if (!CompareBytes (boundary_bytes, buffer)) {
* state = 0;
* data.Position = retval + 2;
* if (got_cr) {
* data.ReadByte(); //data.Position++;
* got_cr = false;
* }
* c = data.ReadByte ();
* continue;
* }
*
* if (buffer [bl - 2] == '-' && buffer [bl - 1] == '-') {
* at_eof = true;
* } else if (buffer [bl - 2] != CR || buffer [bl - 1] != LF) {
* state = 0;
* data.Position = retval + 2;
* if (got_cr) {
* data.ReadByte(); //data.Position++;
* got_cr = false;
* }
* c = data.ReadByte ();
* continue;
* }
* data.Position = retval + 2;
* if (got_cr)
* data.ReadByte();
* //data.Position++;
* break;
* } else {
* // state == 1
* state = 0; // no ReadByte() here
* }
* }
*
* return retval;
* }*/
public Element ReadNextElement(int maxlength)
{
Element elem = new Element();
string header;
bool stopDoNotMovePutYourHandsInTheAir = false;
while ((header = ReadHeaders()) != null)
{
if (StrUtils.StartsWith(header, "Content-Disposition:", true))
{
elem.Name = GetContentDispositionAttribute(header, "name");
elem.Filename = StripPath(GetContentDispositionAttributeWithEncoding(header, "filename"));
if (elem.Name == lastElementName)
{
stopDoNotMovePutYourHandsInTheAir = true;
}
}
else if (StrUtils.StartsWith(header, "Content-Type:", true))
{
elem.ContentType = header.Substring("Content-Type:".Length).Trim();
}
}
if (stopDoNotMovePutYourHandsInTheAir)
{
return(null);
}
//long pos = MoveToNextBoundary (maxlength);
//if (pos == -1)
// return null;
//elem.Length = pos - start;
//Console.WriteLine("gonna do fancy stuff for {0}", elem.Name);
elem.Data = MoveToNextBoundary(maxlength);
return(elem);
}