private void OnReceiveSink2(byte[] buffer, IPEndPoint remote, IPEndPoint local)
{
HTTPMessage msg;
try
{
msg = HTTPMessage.ParseByteArray(buffer, 0, buffer.Length);
}
catch (Exception ex)
{
EventLogger.Log(ex);
msg = new HTTPMessage();
msg.Directive = "---";
msg.DirectiveObj = "---";
msg.BodyBuffer = buffer;
}
msg.LocalEndPoint = local;
msg.RemoteEndPoint = remote;
DText parser = new DText();
String Location = msg.GetTag("Location");
int MaxAge = 0;
String ma = msg.GetTag("Cache-Control").Trim();
if (ma != "")
{
parser.ATTRMARK = ",";
parser.MULTMARK = "=";
parser[0] = ma;
for (int i = 1; i <= parser.DCOUNT(); ++i)
{
if (parser[i, 1].Trim().ToUpper() == "MAX-AGE")
{
MaxAge = int.Parse(parser[i, 2].Trim());
break;
}
}
}
ma = msg.GetTag("USN");
String USN = ma.Substring(ma.IndexOf(":") + 1);
String ST = msg.GetTag("ST");
if (USN.IndexOf("::") != -1)
{
USN = USN.Substring(0, USN.IndexOf("::"));
}
EventLogger.Log(this, EventLogEntryType.SuccessAudit, msg.RemoteEndPoint.ToString());
if (OnSearch != null)
{
OnSearch(msg.RemoteEndPoint, msg.LocalEndPoint, new Uri(Location), USN, ST, MaxAge);
}
}
private static UPnPComplexType ParseComplexType(XmlTextReader X, UPnPComplexType RetVal)
{
string elementName = X.LocalName;
int count = 0;
bool done = false;
DText P = new DText();
P.ATTRMARK = ":";
RetVal.AddContainer(new GenericContainer());
do
{
switch (X.NodeType)
{
case XmlNodeType.Element:
switch (X.LocalName)
{
case "complexType":
case "group":
++count;
if (X.HasAttributes)
{
for (int i = 0; i < X.AttributeCount; i++)
{
X.MoveToAttribute(i);
if (X.Name == "name")
{
P[0] = X.Value;
if (P.DCOUNT() == 1)
{
RetVal.LocalName = X.Value;
RetVal.NameSpace = X.LookupNamespace("");
}
else
{
RetVal.LocalName = P[2];
RetVal.NameSpace = X.LookupNamespace(P[1]);
}
}
else if (X.Name == "ref")
{
// NOP
}
}
X.MoveToElement();
}
break;
case "sequence":
case "choice":
RetVal.CurrentContainer.AddCollection(ParseComplexType_SequenceChoice(X));
//ParseComplexType_Sequence(X,RetVal);
break;
case "complexContent":
RetVal.AddContainer(new ComplexContent());
break;
case "simpleContent":
RetVal.AddContainer(new SimpleContent());
break;
case "restriction":
Restriction r = new Restriction();
if (RetVal.CurrentContainer.GetType() == typeof(ComplexContent))
{
((ComplexContent)RetVal.CurrentContainer).RestExt = r;
}
else if (RetVal.CurrentContainer.GetType() == typeof(SimpleContent))
{
((SimpleContent)RetVal.CurrentContainer).RestExt = r;
}
if (X.HasAttributes)
{
for (int i = 0; i < X.AttributeCount; i++)
{
X.MoveToAttribute(i);
if (X.Name == "base")
{
P[0] = X.Value;
if (P.DCOUNT() == 1)
{
r.baseType = X.Value;
r.baseTypeNS = X.LookupNamespace("");
}
else
{
r.baseType = P[2];
r.baseTypeNS = X.LookupNamespace(P[1]);
}
}
}
X.MoveToElement();
}
break;
}
break;
case XmlNodeType.EndElement:
if (X.LocalName == elementName)
{
--count;
if (count == 0)
{
done = true;
}
}
break;
case XmlNodeType.Text:
break;
}
}while(!done && X.Read());
return(RetVal);
}
private static ItemCollection ParseComplexType_SequenceChoice(XmlTextReader X)
{
bool done = false;
ItemCollection RetVal;
string elementName = X.LocalName;
DText p = new DText();
p.ATTRMARK = ":";
if (X.LocalName == "choice")
{
RetVal = new Choice();
}
else
{
RetVal = new Sequence();
}
if (X.HasAttributes)
{
for (int i = 0; i < X.AttributeCount; i++)
{
X.MoveToAttribute(i);
switch (X.LocalName)
{
case "minOccurs":
RetVal.MinOccurs = X.Value;
break;
case "maxOccurs":
RetVal.MaxOccurs = X.Value;
break;
}
}
X.MoveToElement();
}
X.Read();
do
{
switch (X.NodeType)
{
case XmlNodeType.Element:
switch (X.LocalName)
{
case "group":
if (X.HasAttributes)
{
for (int i = 0; i < X.AttributeCount; i++)
{
X.MoveToAttribute(i);
switch (X.LocalName)
{
case "ref":
break;
}
}
X.MoveToElement();
}
break;
case "sequence":
case "choice":
RetVal.AddCollection(ParseComplexType_SequenceChoice(X));
break;
case "element":
RetVal.AddContentItem(new Element());
if (X.HasAttributes)
{
for (int i = 0; i < X.AttributeCount; i++)
{
X.MoveToAttribute(i);
switch (X.LocalName)
{
case "name":
RetVal.CurrentItem.Name = X.Value;
break;
case "type":
p[0] = X.Value;
if (p.DCOUNT() == 1)
{
RetVal.CurrentItem.Type = X.Value;
RetVal.CurrentItem.TypeNS = X.LookupNamespace("");
}
else
{
RetVal.CurrentItem.Type = p[2];
RetVal.CurrentItem.TypeNS = X.LookupNamespace(p[1]);
}
break;
case "minOccurs":
RetVal.CurrentItem.MinOccurs = X.Value;
break;
case "maxOccurs":
RetVal.CurrentItem.MaxOccurs = X.Value;
break;
}
}
X.MoveToElement();
}
break;
case "attribute":
break;
}
break;
case XmlNodeType.EndElement:
if (X.LocalName == elementName)
{
done = true;
}
break;
case XmlNodeType.Text:
break;
}
}while(!done && X.Read());
return(RetVal);
}
/// <summary>
/// Parses a Byte Array at a specific location, and builds a Packet.
/// </summary>
/// <param name="buffer">The Array of Bytes</param>
/// <param name="indx">The Start Index</param>
/// <param name="count">The number of Bytes to process</param>
/// <returns></returns>
static public HTTPMessage ParseByteArray(byte[] buffer, int indx, int count)
{
HTTPMessage TheMessage = new HTTPMessage();
UTF8Encoding UTF8 = new UTF8Encoding();
String TempData = UTF8.GetString(buffer, indx, count);
DText parser = new DText();
String TempString;
int idx = TempData.IndexOf("\r\n\r\n", StringComparison.Ordinal);
if (idx < 0)
{
return(null);
}
TempData = TempData.Substring(0, idx);
parser.ATTRMARK = "\r\n";
parser.MULTMARK = ":";
parser[0] = TempData;
string CurrentLine = parser[1];
DText HdrParser = new DText();
HdrParser.ATTRMARK = " ";
HdrParser.MULTMARK = "/";
HdrParser[0] = CurrentLine;
if (CurrentLine.ToUpper().StartsWith("HTTP/"))
{
TheMessage.ResponseCode = int.Parse(HdrParser[2]);
int s1 = CurrentLine.IndexOf(" ", StringComparison.Ordinal);
s1 = CurrentLine.IndexOf(" ", s1 + 1, StringComparison.Ordinal);
TheMessage.ResponseData = UnEscapeString(CurrentLine.Substring(s1));
try
{
TheMessage.Version = HdrParser[1, 2];
}
catch (Exception ex)
{
EventLogger.Log(ex);
TheMessage.Version = "0.9";
}
}
else
{
TheMessage.Directive = HdrParser[1];
TempString = CurrentLine.Substring(CurrentLine.LastIndexOf(" ", StringComparison.Ordinal) + 1);
if (TempString.ToUpper().StartsWith("HTTP/") == false)
{
TheMessage.Version = "0.9";
TheMessage.DirectiveObj = UnEscapeString(TempString);
}
else
{
TheMessage.Version = TempString.Substring(TempString.IndexOf("/", StringComparison.Ordinal) + 1);
int fs = CurrentLine.IndexOf(" ", StringComparison.Ordinal) + 1;
TheMessage.DirectiveObj = UnEscapeString(CurrentLine.Substring(
fs,
CurrentLine.Length - fs - TempString.Length - 1));
}
}
String Tag = "";
for (int line = 2; line <= parser.DCOUNT(); ++line)
{
String TagData;
if (Tag != "" && parser[line, 1].StartsWith(" "))
{
TagData = parser[line, 1].Substring(1);
}
else
{
Tag = parser[line, 1];
TagData = "";
for (int i = 2; i <= parser.DCOUNT(line); ++i)
{
if (TagData == "")
{
TagData = parser[line, i];
}
else
{
TagData = TagData + parser.MULTMARK + parser[line, i];
}
}
}
TheMessage.AppendTag(Tag, TagData);
}
int cl;
if (TheMessage.HasTag("Content-Length"))
{
try
{
cl = int.Parse(TheMessage.GetTag("Content-Length"));
}
catch (Exception ex)
{
EventLogger.Log(ex);
cl = -1;
}
}
else
{
cl = -1;
}
byte[] tbuffer;
if (cl > 0)
{
tbuffer = new byte[cl];
if ((idx + 4 + cl) > count)
{
// NOP
}
else
{
Array.Copy(buffer, idx + 4, tbuffer, 0, cl);
TheMessage.DataBuffer = tbuffer;
}
}
if (cl == -1)
{
tbuffer = new Byte[count - (idx + 4)];
Array.Copy(buffer, idx + 4, tbuffer, 0, tbuffer.Length);
TheMessage.DataBuffer = tbuffer;
}
if (cl == 0)
{
TheMessage.DataBuffer = new byte[0];
}
return(TheMessage);
}
private void ProcessPacket(HTTPMessage msg, IPEndPoint src, IPEndPoint local)
{
if (OnSniffPacket != null)
{
OnSniffPacket(src, null, msg);
}
DText parser = new DText();
parser.ATTRMARK = "::";
bool Alive = false;
String UDN = msg.GetTag("USN");
parser[0] = UDN;
String USN = parser[1];
USN = USN.Substring(USN.IndexOf(":", StringComparison.Ordinal) + 1);
String ST = parser[2];
int MaxAge = 0;
String NTS = msg.GetTag("NTS").ToUpper();
if (NTS == "SSDP:ALIVE")
{
Alive = true;
String ma = msg.GetTag("Cache-Control").Trim();
if (ma != "")
{
parser.ATTRMARK = ",";
parser.MULTMARK = "=";
parser[0] = ma;
for (int i = 1; i <= parser.DCOUNT(); ++i)
{
if (parser[i, 1].Trim().ToUpper() == "MAX-AGE")
{
MaxAge = int.Parse(parser[i, 2].Trim());
break;
}
}
}
}
if (msg.Directive == "NOTIFY" && OnNotify != null)
{
Uri locuri = null;
string location = msg.GetTag("Location");
if (location != null && location.Length > 0)
{
try
{
locuri = new Uri(location);
}
catch (Exception ex)
{
EventLogger.Log(ex);
}
}
OnNotify(src, msg.LocalEndPoint, locuri, Alive, USN, ST, MaxAge, msg);
}
else if (msg.Directive == "M-SEARCH" && OnSearch != null)
{
if (ValidateSearchPacket(msg) == false)
{
return;
}
int MaxTimer = int.Parse(msg.GetTag("MX"));
SearchStruct SearchData = new SearchStruct();
SearchData.ST = msg.GetTag("ST");
SearchData.Source = src;
SearchData.Local = local;
SearchTimer.Add(SearchData, RandomGenerator.Next(0, MaxTimer));
}
}