void handleGET(WebRequest req)
{
try
{
string[] path = req.URI.Split('/');
// To handle '/files' request
if (path.Length == 2)
{
req.WriteHTMLResponse(BuildDirHTML(fileSystem.GetRoot()));
return;
}
// This handles '/files/**'
// The URI maps to an existing directory in the file system
if (fileSystem.GetRoot().ContainsDir(path[path.Length - 1], true))
{
// Imidiately set the content-type to html since we are returning html code
req.Headers["content-type"] = "text/html";
Dir422 currentDir = fileSystem.GetRoot();
for (int i = 2; i < path.Length; i++)
{
// Fix '/' at end of URI
if (path[i] != "")
{
currentDir = currentDir.GetDir(path[i]);
}
}
req.WriteHTMLResponse(BuildDirHTML(currentDir));
}
// The URI maps to an existing file in the file system
else if (fileSystem.GetRoot().ContainsFile(path[path.Length - 1], true))
{
// Get the file type and set the content-type to the file type
string filename = path[path.Length - 1];
int dot = filename.LastIndexOf('.');
string type = (dot >= 0) ? filename.Substring(dot).ToLower() : "";
switch (type)
{
case ".txt":
req.Headers["content-type"] = "text/plain";
break;
case ".xml":
req.Headers["content-type"] = "text/xml";
break;
case ".jpg":
req.Headers["content-type"] = "image/jpg";
break;
case ".jpeg":
req.Headers["content-type"] = "image/jpeg";
break;
case ".png":
req.Headers["content-type"] = "image/png";
break;
case ".mp4":
req.Headers["content-type"] = "video/mp4";
break;
case ".pdf":
req.Headers["content-type"] = "application/pdf";
break;
default:
req.Headers["content-type"] = "text/html";
break;
}
Dir422 currentDir = fileSystem.GetRoot();
// Don't include last element because thats the file name
for (int i = 2; i < path.Length - 1; i++)
{
// Fix '/' at end of URI
if (path[i] != "")
{
currentDir = currentDir.GetDir(path[i]);
}
}
File422 file = currentDir.GetFile(path[path.Length - 1]);
// Get the file stuff
int bytesRead;
// Did the client send us a range header
string rangeValue;
if (req.Headers.TryGetValue("range", out rangeValue))
{
byte[] buffer;
// Send the chunk they want. Only works for bytes=%d-%d
rangeValue = rangeValue.Replace(" ", "");
rangeValue = rangeValue.Remove(0, "bytes=".Length);
string[] bytes = rangeValue.Split('-');
int start = int.Parse(bytes[0]), end = int.Parse(bytes[1]), totalRead = 0;
buffer = new byte[end - start];
using (BufferedStream reader = new BufferedStream(file.OpenReadOnly()))
{
// Add header = content-range: bytes %d-%d/%d
req.Headers["content-range"] = "bytes " + rangeValue + "/" + reader.Length;
req.WritePreBody(206, buffer.Length);
while ((bytesRead = reader.Read(buffer, 0, buffer.Length)) > 0)
{
req.WriteFile(buffer, totalRead, bytesRead);
totalRead += bytesRead;
}
}
}
else
{
// Send the entire thing
BufferedStream reader = new BufferedStream(file.OpenReadOnly());
byte[] buffer = new byte[8 * 1024];
req.WritePreBody(200, reader.Length);
while ((bytesRead = reader.Read(buffer, 0, buffer.Length)) > 0)
{
req.WriteFile(buffer, 0, bytesRead);
}
reader.Close();
}
}
else
{
// The URI maps to something that doesn’t exist in the file system
req.WriteNotFoundResponse("<h1>404</h1><br><b>Content not found</b>");
}
}
catch (Exception)
{
return;
}
}