/// <summary> Process this request </summary>
/// <param name="Context"></param>
public void ProcessRequest(HttpContext Context)
{
Context.Response.ContentType = "text/plain";
Context.Response.Expires = -1;
// Try to get the security token key
string tokenKey = Context.Request["token"];
if (tokenKey == null)
{
Context.Response.Write("No token provided with this request");
Context.Response.StatusCode = 401;
return;
}
// Try to get the matching token object from the session
UploadiFive_Security_Token tokenObj = Context.Session["#UPLOADIFIVE::" + tokenKey] as UploadiFive_Security_Token;
if (tokenObj == null)
{
Context.Response.Write("No matching server-side token found for this request");
Context.Response.StatusCode = 401;
return;
}
try
{
// Get the posted file from the appropriate file key
HttpPostedFile postedFile = Context.Request.Files[tokenObj.FileObjName];
if (postedFile != null)
{
// Get the path from the token and ensure it exists
string path = tokenObj.UploadPath;
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
// Get the filename for the uploaded file
string filename = Path.GetFileName(postedFile.FileName);
// Should this be overriden?
if (!String.IsNullOrEmpty(tokenObj.ServerSideFileName))
{
filename = tokenObj.ServerSideFileName;
}
// Are there file extension restrictions?
if (!String.IsNullOrEmpty(tokenObj.AllowedFileExtensions))
{
string extension = Path.GetExtension(postedFile.FileName).ToLower();
List <string> allowed = tokenObj.AllowedFileExtensions.Split("|,".ToCharArray()).ToList();
if (!allowed.Contains(extension))
{
Context.Response.Write("Invalid extension");
Context.Response.StatusCode = 401;
return;
}
}
// Ensure file does not already exist
string newFileName = Path.Combine(path, filename);
if (File.Exists(newFileName))
{
File.Delete(newFileName);
}
// Save this file locally
postedFile.SaveAs(newFileName);
// Post a successful status
Context.Response.Write(filename);
Context.Response.StatusCode = 200;
}
}
catch (Exception ex)
{
Context.Response.Write("Error: " + ex.Message);
Context.Response.StatusCode = 500;
}
}
/// <summary> Writes the file input and script necessary for the upload of the files </summary>
/// <param name="Output"> Stream to write to </param>
protected override void RenderContents(HtmlTextWriter Output)
{
// If there is no current HTTPContext, can't do this...
if ((UploadPath.Length > 0) && (HttpContext.Current != null))
{
// Create a new security token, save in session, and set token GUID in the form data
UploadiFive_Security_Token newToken = new UploadiFive_Security_Token(UploadPath, AllowedFileExtensions, FileObjName, ServerSideFileName, ReturnToken);
FormData["token"] = newToken.ThisGuid.ToString();
HttpContext.Current.Session["#UPLOADIFIVE::" + newToken.ThisGuid.ToString()] = newToken;
}
// Add the file input element
Output.Write("<input id=\"" + FileInputID + "\" name=\"" + FileInputID + "\" ");
if (FileInputClass.Length > 0)
Output.Write("class=\"" + FileInputClass + "\" ");
Output.WriteLine("type=\"file\" />");
Output.WriteLine();
// Add the script for this to be added to the ready document event
Output.WriteLine("<script type=\"text/javascript\">");
Output.WriteLine(" $(document).ready(function() {");
// Allow the settings object to write the actual jquery
settings.Add_To_Stream(Output, String.Empty, String.Empty);
Output.WriteLine(" });");
Output.WriteLine("</script>");
Output.WriteLine();
}
