protected virtual BrowscapXmlHelper GetBrowscapXmlHelper()
{
if (Singleton <BrowscapXmlHelper> .Instance != null)
{
return(Singleton <BrowscapXmlHelper> .Instance);
}
string userAgentStringPath = "~/App_Data/browscap.xml";
//no database created
if (string.IsNullOrEmpty(userAgentStringPath))
{
return(null);
}
//prevent multi loading data
lock (_locker)
{
//data can be loaded while we waited
if (Singleton <BrowscapXmlHelper> .Instance != null)
{
return(Singleton <BrowscapXmlHelper> .Instance);
}
string userAgentStringsPath = _fileProvider.MapPath(userAgentStringPath);
string crawlerOnlyUserAgentStringsPath = _fileProvider.MapPath("~/App_Data/browscap.crawlersonly.xml");
BrowscapXmlHelper browscapXmlHelper = new BrowscapXmlHelper(userAgentStringsPath, crawlerOnlyUserAgentStringsPath, _fileProvider);
Singleton <BrowscapXmlHelper> .Instance = browscapXmlHelper;
return(Singleton <BrowscapXmlHelper> .Instance);
}
}
/// <summary>
/// Try to write web.config file
/// </summary>
/// <returns></returns>
protected virtual bool TryWriteWebConfig()
{
try
{
_fileProvider.SetLastWriteTimeUtc(_fileProvider.MapPath("~/web.config"), DateTime.UtcNow);
return(true);
}
catch
{
return(false);
}
}
public virtual IActionResult Upload()
{
ViewData["resultCode"] = "failed";
ViewData["result"] = "No access to this functionality";
return(View());
if (Request.Form.Files.Count == 0)
{
throw new Exception("No file uploaded");
}
var uploadFile = Request.Form.Files.FirstOrDefault();
if (uploadFile == null)
{
ViewData["resultCode"] = "failed";
ViewData["result"] = "No file name provided";
return(View());
}
var fileName = _fileProvider.GetFileName(uploadFile.FileName);
if (string.IsNullOrEmpty(fileName))
{
ViewData["resultCode"] = "failed";
ViewData["result"] = "No file name provided";
return(View());
}
var directory = "~/wwwroot/images/uploaded/";
var filePath = _fileProvider.Combine(_fileProvider.MapPath(directory), fileName);
var fileExtension = _fileProvider.GetFileExtension(filePath);
if (!GetAllowedFileTypes().Contains(fileExtension))
{
ViewData["resultCode"] = "failed";
ViewData["result"] = $"Files with {fileExtension} extension cannot be uploaded";
return(View());
}
using (var fileStream = new FileStream(filePath, FileMode.Create))
{
uploadFile.CopyTo(fileStream);
}
ViewData["resultCode"] = "success";
ViewData["result"] = "success";
ViewData["filename"] = Url.Content($"{directory}{fileName}");
return(View());
}
