/// <summary>
/// Read a group of stream tags (which all come in order) from the BBeB reader.
/// </summary>
/// <param name="tagReader">The reader to do the reading with</param>
/// <returns>A new tag representing the uncompressed data in the stream.</returns>
public static StreamTagGroup Deserialize(BBeBinaryReader tagReader, ObjectType eObjectType)
{
ushort wFlags = tagReader.ReadUInt16();
StreamFormatFlags eStreamFlags = (StreamFormatFlags)(wFlags & 0xff00);
StreamContents eContents = (StreamContents)(wFlags & 0x00ff);
TagId eTagId = tagReader.ReadTag();
if (eTagId != TagId.StreamSize)
{
throw new UnexpectedTagException("Expected a StreamSize tag: " + eTagId.ToString());
}
uint dwStreamSize = tagReader.ReadUInt32();
eTagId = tagReader.ReadTag();
if (eTagId != TagId.StreamStart)
{
throw new UnexpectedTagException("Expected a StreamStart tag: " + eTagId.ToString());
}
byte[] streamData = tagReader.ReadBytes((int)dwStreamSize);
try
{
eTagId = tagReader.ReadTag();
}
catch (InvalidTagException ex)
{
Debug.WriteLineIf(s_bDebugMode, "Not a tag at end of stream: 0x" + ex.Value.ToString("x"));
// dataTag.AppendShort(ex.Value);
// Temporarily
eTagId = TagId.StreamEnd;
}
if (eTagId != TagId.StreamEnd)
{
throw new UnexpectedTagException("Expected a StreamEnd tag: " + eTagId.ToString());
}
StreamTagGroup tag = new StreamTagGroup();
tag.Contents = eContents;
StreamTagSerializer streamTagSerializer = new StreamTagSerializer();
tag.Data = streamTagSerializer.Convert(streamData, eStreamFlags,
StreamFormatFlags.None, eObjectType);
return(tag);
}
public static string getImageTypeAsString(StreamContents format)
{
switch (format)
{
case StreamContents.JpegImage:
return("jpg");
case StreamContents.PngImage:
return("png");
case StreamContents.GifImage:
return("gif");
case StreamContents.BmpImage:
return("bmp");
default:
return("unknown");
}
}
private void Parse(Stream stream, Encoding encoding)
{
Regex regQuery;
Match regMatch;
string propertyType;
// The first line should contain the delimiter
byte[] data = ToByteArray(stream);
// Copy to a string for header parsing
string content = encoding.GetString(data);
int delimiterEndIndex = content.IndexOf("\r\n");
if (delimiterEndIndex > -1)
{
string delimiterString = content.Substring(0, content.IndexOf("\r\n"));
byte[] delimiterBytes = encoding.GetBytes(delimiterString);
byte[] delimiterWithNewLineBytes = encoding.GetBytes(delimiterString + "\r\n");
// the request ends DELIMITER--\r\n
byte[] delimiterEndBytes = encoding.GetBytes("\r\n" + delimiterString + "--\r\n");
int lengthDifferenceWithEndBytes = (delimiterString + "--\r\n").Length;
byte[][] separatedStream = Separate(data, delimiterWithNewLineBytes);
data = null;
for (int i = 0; i < separatedStream.Length; i++)
{
// parse out whether this is a parameter or a file
// get the first line of the byte[] as a string
string thisPieceAsString = encoding.GetString(separatedStream[i]);
if (string.IsNullOrWhiteSpace(thisPieceAsString))
{
continue;
}
string firstLine = thisPieceAsString.Substring(0, thisPieceAsString.IndexOf("\r\n"));
// Check the item to see what it is
regQuery = new Regex(@"(?<=name\=\"")(.*?)(?=\"")");
regMatch = regQuery.Match(firstLine);
propertyType = regMatch.Value.Trim();
// get the index of the start of the content and the end of the content
int indexOfStartOfContent = thisPieceAsString.IndexOf("\r\n\r\n") + "\r\n\r\n".Length;
// this line compares the name to the name of the html input control,
// this can be smarter by instead looking for the filename property
StreamContent myContent = new StreamContent();
if (propertyType.ToUpper().Trim() != "FILES")
{
// this is a parameter!
// if this is the last piece, chop off the final delimiter
int lengthToRemove = (i == separatedStream.Length - 1) ? lengthDifferenceWithEndBytes : 0;
string value = thisPieceAsString.Substring(indexOfStartOfContent, thisPieceAsString.Length - "\r\n".Length - indexOfStartOfContent - lengthToRemove);
myContent.StringData = value;
myContent.PropertyName = propertyType;
if (StreamContents == null)
{
StreamContents = new List <StreamContent>();
}
StreamContents.Add(myContent);
this.Success = true;
}
else
{
// this is a file!
regQuery = new Regex(@"(?<=filename\=\"")(.*?)(?=\"")");
regMatch = regQuery.Match(firstLine);
string fileName = regMatch.Value.Trim();
// get the content byte[]
// if this is the last piece, chop off the final delimiter
int lengthToRemove = (i == separatedStream.Length - 1) ? delimiterEndBytes.Length : 0;
int contentByteArrayStartIndex = encoding.GetBytes(thisPieceAsString.Substring(0, indexOfStartOfContent)).Length;
byte[] fileData = new byte[separatedStream[i].Length - contentByteArrayStartIndex - lengthToRemove];
Array.Copy(separatedStream[i], contentByteArrayStartIndex, fileData, 0, separatedStream[i].Length - contentByteArrayStartIndex - lengthToRemove);
// save the fileData byte[] as the file
myContent.PropertyName = propertyType;
myContent.FileName = fileName;
myContent.IsFile = true;
myContent.Data = fileData;
if (StreamContents == null)
{
StreamContents = new List <StreamContent>();
}
StreamContents.Add(myContent);
this.Success = true;
}
}
}
}
