public void Test()
{
using (PatternizedStream pStr = new PatternizedStream(inputStr, sequence))
{
int part = 0;
long read = 0;
byte[] buffer = new byte[4096];
bool isEnd = false;
MemoryStream str = new MemoryStream();
while ((read = pStr.ReadTill(buffer, 0, 4096, out isEnd)) > 0)
{
str.Write(buffer, 0, (int)read);
byte[] current = str.ToArray();
for (int i = 0; i < current.Length; i++)
{
Assert.AreEqual(parts[part][i], current[i], "Malformed data");
}
if (isEnd)
{
Assert.IsFalse(part > 2, "Found too many parts");
Assert.AreEqual(parts[part].Length, str.Length, "Invalid part length");
Assert.IsTrue(parts[part].SequenceEqual(str.ToArray()), "Part data incorrect");
part++;
str = new MemoryStream();
}
}
Assert.IsFalse(part < 3, "Found too little parts");
}
}
public MultiPartStream(Stream stream)
{
if (stream == null)
{
throw new ArgumentNullException();
}
this.stream = stream;
splitter = stream.ReadTill(newLineBytes);
byte[] fileEnd = new byte[splitter.Length + newLineBytes.Length];
newLineBytes.CopyTo(fileEnd, 0);
splitter.CopyTo(fileEnd, newLineBytes.Length);
pStr = new PatternizedStream(stream, fileEnd);
}
public static MultiPartSection ParseStreaming(byte[] splitter, PatternizedStream stream, Action <MultiPartSection, byte[], long> fileHandler)
{
byte[] header = null;
//Build Header
header = stream.ReadTill(fileSplitter);
if (header.Length == 0)
{
return(null);
}
string headerText = Encoding.UTF8.GetString(header);
if (headerText == "--")
{
return(null);
}
//Parse Header
Regex re = new Regex(@"(?<=Content\-Type:)(.*?)(?=$)");
Match contentTypeMatch = re.Match(headerText);
re = new Regex(@"(?<=filename\=\"")(.*?)(?=\"")");
Match fileNameMatch = re.Match(headerText);
re = new Regex(@"(?<=name\=\"")(.*?)(?=\"")");
Match nameMatch = re.Match(headerText);
MultiPartSection section = new MultiPartSection();
if (contentTypeMatch.Success)
{
section.ContentType = contentTypeMatch.Value.Trim();
}
if (fileNameMatch.Success)
{
section.FileName = fileNameMatch.Value.Trim();
}
if (nameMatch.Success)
{
section.Name = nameMatch.Value.Trim();
}
//Read Content
byte[] fileEnd = new byte[splitter.Length + newLineBytes.Length];
newLineBytes.CopyTo(fileEnd, 0);
splitter.CopyTo(fileEnd, newLineBytes.Length);
//Files
if (!string.IsNullOrEmpty(section.FileName) || !string.IsNullOrEmpty(section.ContentType))
{
section.Streamed = true;
long read = 0;
byte[] buffer = new byte[4096];
bool isEnd = false;
while ((read = stream.ReadTill(buffer, 0, buffer.Length, out isEnd)) > 0)
{
fileHandler(section, buffer, read);
if (isEnd)
{
break;
}
}
}
//Parameters
else
{
section.Data = stream.ReadTill(fileEnd);
}
return(section);
}
