public static ContentNode Parse(ContentCodeBag bag, byte[] buffer, string root,
ref int offset)
{
ContentNode node = new ContentNode();
int num = IPAddress.NetworkToHostOrder(BitConverter.ToInt32(buffer, offset));
ContentCode code = bag.Lookup(num);
if (code.Equals(ContentCode.Zero))
{
// probably a buggy server. fallback to our internal code bag
code = ContentCodeBag.Default.Lookup(num);
}
int length = IPAddress.NetworkToHostOrder(BitConverter.ToInt32(buffer, offset + 4));
if (code.Equals(ContentCode.Zero))
{
string s = System.Text.ASCIIEncoding.ASCII.GetString(buffer);
throw new ContentException(String.Format("Failed to find content code for '{0}'. Data length is {1}; content is {2}",
ContentCodeBag.GetStringFormat(num), length, s));
}
node.Name = code.Name;
switch (code.Type)
{
case ContentType.Char:
node.Value = (byte)buffer[offset + 8];
break;
case ContentType.Short:
node.Value = IPAddress.NetworkToHostOrder(BitConverter.ToInt16(buffer, offset + 8));
break;
case ContentType.SignedLong:
case ContentType.Long:
node.Value = IPAddress.NetworkToHostOrder(BitConverter.ToInt32(buffer, offset + 8));
break;
case ContentType.LongLong:
node.Value = IPAddress.NetworkToHostOrder(BitConverter.ToInt64(buffer, offset + 8));
break;
case ContentType.String:
node.Value = Encoding.UTF8.GetString(buffer, offset + 8, length);
break;
case ContentType.Date:
node.Value = Utility.ToDateTime(IPAddress.NetworkToHostOrder(BitConverter.ToInt32(buffer, offset + 8)));
break;
case ContentType.Version:
int major = IPAddress.NetworkToHostOrder(BitConverter.ToInt16(buffer, offset + 8));
int minor = (int)buffer[offset + 10];
int micro = (int)buffer[offset + 11];
node.Value = new Version(major, minor, micro);
break;
case ContentType.Container:
node.Value = ParseChildren(bag, buffer, offset + 8, length);
break;
default:
throw new ContentException(String.Format("Unknown content type '{0}' for '{1}'",
code.Type, code.Name));
}
offset += length + 8;
if (root != null)
{
ContentNode rootNode = node.GetChild(root);
if (rootNode == null)
{
throw new ContentException(String.Format("Could not find root node '{0}'", root));
}
return(rootNode);
}
else
{
return(node);
}
}
