public ValidationResult ValidateFormImageFile(IFormFile formFile, List <FileExtensions> customFileExtensions = null, List <string> customMimeTypes = null, long customMaxFileSize = 0)
{
List <FileExtensions> allowedFileExtensions = customFileExtensions == null ? this.configurationConstants.ImageValidationRules.AllowedFormatExtensionsAsEnum : customFileExtensions;
List <string> allowedMimeTypes = customMimeTypes == null ? this.configurationConstants.ImageValidationRules.AllowedMimeTypes : customMimeTypes;
long maxAllowedFileSize = customMaxFileSize == 0 ? this.configurationConstants.ImageValidationRules.MaxAllowedFileSize : customMaxFileSize;
var startupHandler = new StartupHandler <IFormFile>();
var fileExtensionHandler = new FileExtensionHandler(allowedFileExtensions);
var fileMimeTypesHandler = new FileMimeTypesHandler(allowedMimeTypes);
var fileSizeHandler = new FileSizeHandler(maxAllowedFileSize);
var imageBoxingHandler = new ImageBoxingHandler();
startupHandler
.SetNext(fileExtensionHandler)
.SetNext(fileMimeTypesHandler)
.SetNext(fileSizeHandler)
.SetNext(imageBoxingHandler);
ValidationResult validationResult = new ValidationResult();
string resultMessage = string.Empty;
validationResult.Success = startupHandler.Handle(formFile, out resultMessage) != null;
validationResult.Message = resultMessage;
if (validationResult.Success)
{
validationResult.Message = "Image file is valid.";
}
return(validationResult);
}
/// <inheritdoc/>
public ValidationResult ValidateFormFile(IFormFile formFile, List <FileExtensions> customFileExtensions = null, List <string> customMimeTypes = null, long customMaxFileSize = 0)
{
List <FileExtensions> allowedFileExtensions = customFileExtensions ?? this.allowedFileFormatExtensions;
List <string> allowedMimeTypes = customMimeTypes ?? this.allowedFilesMimeTypes;
long maxAllowedFileSize = customMaxFileSize == 0 ? this.options.MaxAllowedFileSize : customMaxFileSize;
var startupHandler = new StartupHandler <IFormFile>();
var fileExtensionHandler = new FileExtensionHandler(allowedFileExtensions);
var fileMimeTypesHandler = new FileMimeTypesHandler(allowedMimeTypes);
var fileSizeHandler = new FileSizeHandler(maxAllowedFileSize);
startupHandler
.SetNext(fileExtensionHandler)
.SetNext(fileMimeTypesHandler)
.SetNext(fileSizeHandler);
ValidationResult validationResult = new ValidationResult();
validationResult.Succeeded = startupHandler.Handle(formFile, out var resultMessage) != null;
validationResult.Message = resultMessage;
if (validationResult.Succeeded)
{
validationResult.Message = "File is valid.";
}
return(validationResult);
}