public string GetPageElementImageUrl(long Id, PageElement element, string login)
{
Paths paths = GetLoginImagePaths(login);
if (paths == null)
{
return(null);
}
paths.Absolute = Path.Combine(paths.Absolute, element.ToString());
if (!Directory.Exists(paths.Absolute))
{
return(null);
}
List <string> files = Directory.GetFiles(paths.Absolute, Id.ToString() + ".*", SearchOption.TopDirectoryOnly).ToList();
files.AddRange(Directory.GetFiles(paths.Absolute, Id.ToString() + "_.*", SearchOption.TopDirectoryOnly));
if (!files.Any())
{
return(null);
}
paths.Relative = Path.Combine(paths.Relative, element.ToString());
string result = Path.Combine(paths.Relative, Path.GetFileName(files[0]));
result = result.Replace('\\', '/');
return(result);
}
// TODO: reduce login and page names down to reasonable minimum, because path length is limited wih 248 (?) characters
public async Task <string> UploadElementImage(string login, PageElement pageElement, IFormFile file)
{
if (file == null || file.Length == 0)
{
es.ThrowException("File is empty");
}
if (string.IsNullOrWhiteSpace(options.Value.AccountImagesPath))
{
es.ThrowException("No account images path in configuration");
}
if (string.IsNullOrWhiteSpace(login))
{
es.ThrowException("No login to save an image to");
}
Tuple <string, string> ext = imageTypes.FirstOrDefault(x => string.Equals(x.Item1, file.ContentType, StringComparison.OrdinalIgnoreCase));
if (ext == null)
{
es.ThrowInfoException("File to upload is not an image");
}
if (file.Length > options.Value.Images.InputSizeLimit * 1024 * 1024)
{
es.ThrowInfoException("File to upload exceeds a limit {0} Mb",
options.Value.Images.InputSizeLimit.ToString());
}
string relativePath = Path.Combine(options.Value.AccountImagesPath, login, pageElement.ToString());
string path = Path.Combine(environment.WebRootPath, relativePath);
Directory.CreateDirectory(path);
List <string> files =
Directory
.GetFiles(path)
.Where(x => Path.GetFileNameWithoutExtension(x) == file.FileName ||
Path.GetFileNameWithoutExtension(x) == file.FileName + "_")
.ToList();
bool add_ = files.Count > 0 && !files.Any(x => Path.GetFileNameWithoutExtension(x) == file.FileName + "_");
files.ForEach(x => File.Delete(x));
string fileName = file.FileName + (add_ ? "_" : "") + "." + ext.Item2;
using (var fileStream = new FileStream(Path.Combine(path, fileName), FileMode.Create))
{
if (file.Length > options.Value.Images.ConvertSizeLimit * 1024)
{
reduceImageSize(file, fileStream);
}
else
{
await file.CopyToAsync(fileStream);
}
}
return(Path.Combine(relativePath, fileName).Replace('\\', '/'));
}
public void DeleteElementImage(long id, string login, PageElement pageElement)
{
string path = Path.Combine(environment.WebRootPath, options.Value.AccountImagesPath, login, pageElement.ToString());
if (!Directory.Exists(path))
{
return;
}
Directory
.GetFiles(path)
.Where(x =>
Path.GetFileNameWithoutExtension(x) == id.ToString() ||
Path.GetFileNameWithoutExtension(x) == id.ToString() + "_"
)
.ToList()
.ForEach(x => File.Delete(x));
}