/// <summary>
/// 验证文件类型是否无效（当文件类型与参数fileSuffix一样时，表示有效）
/// 如果当文件类型与参数fileSuffix不一样时，通过调用 uploadParam.ExcuteOnUploadItemValidFailed来确定文件是否有效
/// </summary>
/// <returns></returns>
private static bool IsinValidFileTypeWhenNotEqual(UploadParameter uploadParam, UploadItem uploadItem, string fileSuffix)
{
if (fileSuffix.Equals(
uploadItem.FileSuffix, StringComparison.OrdinalIgnoreCase))
{
return !(uploadItem.IsValid = true);
}
uploadItem.IsValid = false;
uploadItem.InValidMessages.Add(" 文件 [" + uploadItem.FileName + "] 上传类型验证无效 ");
// 调用ExcuteOnUploadItemValidFailed进行（如果返回false，表示不允许忽略错误，禁止继续上传文件）
return !(uploadItem.IsValid = uploadParam.ExcuteOnUploadItemValidFailed(uploadItem, FileUploadTypeValidOption.FileType));
}
/// <summary>
/// 验证上传文件的：基础数据/验证模式与文件类型/所有文件总大小/单个文件大小 是否合法
/// </summary>
/// <param name="uploadParam">上传参数对象</param>
/// <returns></returns>
private static bool IsValidUploadBasicData(UploadParameter uploadParam)
{
// 基础数据必须正确
if (uploadParam != null && uploadParam.FileUploads != null && uploadParam.FileUploads.Length > 0)
{
// 验证总文件大小
if (uploadParam.AllowFileSize < uploadParam.FileTotalSize)
{
throw new APIFW_ArgumentException("上传文件总大小超过了配置参数最大限制！");
}
// 验证单个文件大小
foreach (UploadItem item in uploadParam.FileUploads)
{
if (uploadParam.AllowSingleFileSize < item.ContentLength)
{
if (!uploadParam.ExcuteOnUploadItemValidFailed(item, FileUploadTypeValidOption.FileSize))
{
throw new APIFW_ArgumentException("上传文件[" + item.FileName + "]的大小超过了配置参数最大大小限制！");
}
}
}
// 验证模式为FileUploadTypeValidMode.AllowType，必须指定。UnOrAllowTypes参数
if ((uploadParam.TypeValidMode == FileUploadTypeValidMode.AllowType))
{
if (uploadParam.FileTypes == null || uploadParam.FileTypes.Count == 0)
{
throw new APIFW_ArgumentException("上传允许文件类型验证模式为 FileUploadTypeValidMode.AllowType,最少必须包含一项UnOrAllowTypes！");
}
}
return true;
}
throw new APIFW_ArgumentException(" 上传参数[UploadParameter]验证失败,没有任何允许上传的文件或者上传文件大小为零,请确认！");
}
