MindWorkAI/AI-Studio
MindWorkAI/AI-Studio
1
0
Fork 0
mirror of https://github.com/MindWorkAI/AI-Studio.git synced 2026-02-12 20:01:37 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Add DetermineMimeType method for improved MIME type detection based on image source

Browse Source
This commit is contained in:
Thorsten Sommer 2025-12-29 17:33:58 +01:00
parent 8778feee30
commit 4c181ea924
Signed by: tsommer
GPG Key ID: 371BBA77A02C0108
1 changed files with 58 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

58
app/MindWork AI Studio/Chat/IImageSourceExtensions.cs
View File

@ -6,6 +6,64 @@ public static class IImageSourceExtensions
{
private static string TB(string fallbackEN) => I18N.I.T(fallbackEN, typeof(IImageSourceExtensions).Namespace, nameof(IImageSourceExtensions));
public static string DetermineMimeType(this IImageSource image)
{
switch (image.SourceType)
{
case ContentImageSource.BASE64:
{
// Try to detect the mime type from the base64 string:
var base64Data = image.Source;
if (base64Data.StartsWith("data:", StringComparison.OrdinalIgnoreCase))
{
var mimeEnd = base64Data.IndexOf(';');
if (mimeEnd > 5)
{
return base64Data[5..mimeEnd];
}
}
// Fallback:
return "application/octet-stream";
}
case ContentImageSource.URL:
{
// Try to detect the mime type from the URL extension:
var uri = new Uri(image.Source);
var extension = Path.GetExtension(uri.AbsolutePath).ToLowerInvariant();
return extension switch
{
".png" => "image/png",
".jpg" or ".jpeg" => "image/jpeg",
".gif" => "image/gif",
".bmp" => "image/bmp",
".webp" => "image/webp",
_ => "application/octet-stream"
};
}
case ContentImageSource.LOCAL_PATH:
{
var extension = Path.GetExtension(image.Source).ToLowerInvariant();
return extension switch
{
".png" => "image/png",
".jpg" or ".jpeg" => "image/jpeg",
".gif" => "image/gif",
".bmp" => "image/bmp",
".webp" => "image/webp",
_ => "application/octet-stream"
};
}
default:
return "application/octet-stream";
}
}
/// <summary>
/// Read the image content as a base64 string.
/// </summary>