StringBuilder saved;
bool sawCR;
bool gotit;
+ int trailerState;
ArrayList chunks;
public ChunkStream (byte [] buffer, int offset, int size, WebHeaderCollection headers)
public void Write (byte [] buffer, int offset, int size)
{
- InternalWrite (buffer, ref offset, size);
+ if (offset < size)
+ InternalWrite (buffer, ref offset, size);
}
void InternalWrite (byte [] buffer, ref int offset, int size)
get { return (chunkRead != chunkSize || chunkSize != 0 || state != State.None); }
}
+ public bool DataAvailable {
+ get {
+ int count = chunks.Count;
+ for (int i = 0; i < count; i++) {
+ Chunk ch = (Chunk) chunks [i];
+ if (ch == null || ch.Bytes == null)
+ continue;
+ if (ch.Bytes.Length > 0 && ch.Offset < ch.Bytes.Length)
+ return (state != State.Body);
+ }
+ return false;
+ }
+ }
+
public int ChunkLeft {
get { return chunkSize - chunkRead; }
}
State GetChunkSize (byte [] buffer, ref int offset, int size)
{
+ chunkRead = 0;
+ chunkSize = 0;
char c = '\0';
while (offset < size) {
c = (char) buffer [offset++];
ThrowProtocolViolation ("Missing \\n");
try {
- if (saved.Length > 0)
- chunkSize = Int32.Parse (saved.ToString (), NumberStyles.HexNumber);
+ if (saved.Length > 0) {
+ chunkSize = Int32.Parse (RemoveChunkExtension (saved.ToString ()), NumberStyles.HexNumber);
+ }
} catch (Exception) {
ThrowProtocolViolation ("Cannot parse chunk size.");
}
chunkRead = 0;
try {
- chunkSize = Int32.Parse (saved.ToString (), NumberStyles.HexNumber);
+ chunkSize = Int32.Parse (RemoveChunkExtension (saved.ToString ()), NumberStyles.HexNumber);
} catch (Exception) {
ThrowProtocolViolation ("Cannot parse chunk size.");
}
-
- if (chunkSize == 0)
+
+ if (chunkSize == 0) {
+ trailerState = 2;
return State.Trailer;
+ }
return State.Body;
}
+ static string RemoveChunkExtension (string input)
+ {
+ int idx = input.IndexOf (';');
+ if (idx == -1)
+ return input;
+ return input.Substring (0, idx);
+ }
+
State ReadCRLF (byte [] buffer, ref int offset, int size)
{
if (!sawCR) {
char c = '\0';
// short path
- if ((char) buffer [offset] == '\r') {
+ if (trailerState == 2 && (char) buffer [offset] == '\r' && saved.Length == 0) {
offset++;
- if ((char) buffer [offset] == '\n') {
+ if (offset < size && (char) buffer [offset] == '\n') {
offset++;
return State.None;
}
offset--;
}
- int st = 0;
+ int st = trailerState;
string stString = "\r\n\r";
while (offset < size && st < 4) {
c = (char) buffer [offset++];
}
if (st > 0) {
- saved.Append (stString.Substring (0, st));
+ saved.Append (stString.Substring (0, saved.Length == 0? st-2: st));
st = 0;
+ if (saved.Length > 4196)
+ ThrowProtocolViolation ("Error reading trailer (too long).");
}
}
if (st < 4) {
- if (offset < size)
+ trailerState = st;
+ if (offset < size)
ThrowProtocolViolation ("Error reading trailer.");
return State.Trailer;