/// <summary>
/// Save file with content base on <see cref="base64" />, save file as
/// <see cref="savePath" /> and store info include <see cref="originalFileName" /> in <see cref="FileModel" />
/// </summary>
/// <param name="base64">
/// File content as base 64 format, can not be empty/null
/// </param>
/// <param name="originalFileName"> File original name, can be empty/null </param>
/// <param name="savePath">
/// File save path, if relative path auto combine with
/// <see cref="Directory.GetCurrentDirectory" />, can not be empty/null
/// </param>
/// <returns></returns>
public static FileModel Save(string base64, string originalFileName, string savePath)
{
StringHelper.CheckNullOrWhiteSpace(base64, savePath);
FileModel fileModel = new FileModel
{
Base64 = base64,
Location = savePath,
OriginalFileName = originalFileName
};
// Check base 64 is image or not
var imageInfo = ImageHelper.GetImageInfo(base64);
if (imageInfo != null)
{
// Basic info
fileModel.FileType = FileType.Image;
fileModel.MimeType = imageInfo.MimeType;
fileModel.Extension = MimeTypeHelper.GetExtension(fileModel.MimeType);
// Image info
fileModel.ImageWidthPx = imageInfo.WidthPx;
fileModel.ImageHeightPx = imageInfo.HeightPx;
fileModel.ImageDominantHexColor = imageInfo.DominantHexColor;
}
else
{
//Basic info
fileModel.FileType = FileType.UnKnown;
fileModel.Extension = Path.GetExtension(fileModel.Location);
fileModel.MimeType = fileModel.Extension != null?MimeTypeHelper.GetMimeType(fileModel.Extension) : null;
}
fileModel.Location = String.IsNullOrWhiteSpace(Path.GetExtension(fileModel.Location)) ? (fileModel.Location + fileModel.Extension) : fileModel.Location;
var physicalPath = fileModel.Location.GetFullPath();
// Save/Write file and get content length
base64.Save(physicalPath, out var contentLength);
fileModel.ContentLength = contentLength;
return(fileModel);
}
public static string GetMimeType(this FileInfo fileInfo)
{
var mimeType = MimeTypeHelper.GetMimeType(fileInfo.Extension);
return(mimeType);
}
