Finish image converter

This commit is contained in:
Myx
2024-10-13 19:55:35 +02:00
parent f38861c80c
commit ba5b8c81b3
27 changed files with 483 additions and 114 deletions

View File

@@ -36,13 +36,24 @@ public class ConversionQueueService : BackgroundService
private Task<(byte[], string)> ProcessConversionAsync(ConversionTask task)
{
using var magickImage = new MagickImage(task.ImageData);
magickImage.Format = task.Format;
var resultStream = new MemoryStream();
magickImage.Write(resultStream);
resultStream.Position = 0;
try
{
using var magickImage = new MagickImage(task.ImageData);
magickImage.Format = task.Format;
var resultStream = new MemoryStream();
magickImage.Write(resultStream);
resultStream.Position = 0;
var mimeType = MimeTypes.MimeTypeMap.GetMimeType($"image/{task.Format.ToString().ToLower()}");
return Task.FromResult((resultStream.ToArray(), mimeType));
var mimeType = MimeTypes.MimeTypeMap.GetMimeType($"image/{task.Format.ToString().ToLower()}");
return Task.FromResult((resultStream.ToArray(), mimeType));
}
catch (MagickImageErrorException ex)
{
// Log the error message
Console.WriteLine($"Image conversion failed: {ex.Message}");
// Return a default value or handle the error as appropriate for your application
return Task.FromResult<(byte[], string)>((null, null));
}
}
}

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@@ -6,54 +6,81 @@ var builder = WebApplication.CreateBuilder(args);
builder.Services.AddAntiforgery(options => options.HeaderName = "2311d8d8-607d-4747-8939-1bde65643254");
builder.Services.AddSingleton<ConversionQueueService>();
builder.Services.AddHostedService(provider => provider.GetRequiredService<ConversionQueueService>());
builder.Services.AddCors(options =>
{
options.AddPolicy("AllowSpecificOrigin",
builder => builder.WithOrigins("http://localhost:4200")
.AllowAnyMethod()
.AllowAnyHeader()
.AllowCredentials());
});
var app = builder.Build();
app.UseAntiforgery();
app.UseCors("AllowSpecificOrigin"); // Use the CORS policy
var conversionQueue = app.Services.GetRequiredService<ConversionQueueService>();
app.MapPost("/convert/{format}", async (IFormFile image, string format) =>
app.MapPost("/convert/{format}", async (IFormFile file, string format) =>
{
if (!Enum.TryParse(format, true, out MagickFormat magickFormat) || magickFormat == MagickFormat.Unknown)
return Results.BadRequest("Invalid format");
if (image == null || image.Length == 0)
return Results.BadRequest("No image provided");
if (image.Length > 20 * 1024 * 1024)
throw new Exception("Image size too large");
using var memoryStream = new MemoryStream();
await image.CopyToAsync(memoryStream);
var conversionTask = new ConversionTask
try
{
ImageData = memoryStream.ToArray(),
Format = magickFormat
};
if (!Enum.TryParse(format, true, out MagickFormat magickFormat) || magickFormat == MagickFormat.Unknown)
return Results.BadRequest("Invalid format");
var tcs = new TaskCompletionSource<(byte[], string)>();
conversionQueue.QueueConversion(conversionTask, tcs);
var formatInfo = MagickNET.SupportedFormats.FirstOrDefault(f => f.Format == magickFormat);
if (formatInfo == null || !formatInfo.SupportsReading || !formatInfo.SupportsWriting)
return Results.BadRequest("Unsupported format");
var (imageData, mimeType) = await tcs.Task;
if (file == null || file.Length == 0)
return Results.BadRequest("No image provided");
return Results.File(new MemoryStream(imageData), mimeType, $"{Path.GetFileNameWithoutExtension(image.FileName)}.{magickFormat.ToString().ToLower()}");
});
if (file.Length > 20 * 1024 * 1024)
throw new Exception("Image size too large");
using var memoryStream = new MemoryStream();
await file.CopyToAsync(memoryStream);
var conversionTask = new ConversionTask
{
ImageData = memoryStream.ToArray(),
Format = magickFormat
};
var tcs = new TaskCompletionSource<(byte[], string)>();
conversionQueue.QueueConversion(conversionTask, tcs);
var (imageData, mimeType) = await tcs.Task;
return Results.File(new MemoryStream(imageData), mimeType, $"{Path.GetFileNameWithoutExtension(file.FileName)}.{magickFormat.ToString().ToLower()}");
}
catch (ImageMagick.MagickImageErrorException e)
{
Console.WriteLine(e);
return Results.BadRequest("Invalid image");
}
}).DisableAntiforgery(); // should get this removed by getting antiforgery working with angular. Doesn't find Cookie.
app.MapGet("/antiforgery/token", (IAntiforgery forgeryService, HttpContext context) =>
{
var tokens = forgeryService.GetAndStoreTokens(context);
var xsrfToken = tokens.RequestToken!;
return TypedResults.Content(xsrfToken, "text/plain");
});
}).DisableAntiforgery();
app.MapGet("/formats", () =>
{
var formats = Enum.GetNames<MagickFormat>().ToList();
formats.Remove("Unknown");
var formats = MagickNET.SupportedFormats
.Where(f => f.SupportsReading && f.SupportsWriting)
.Select(f => f.Format.ToString())
.ToList();
return Results.Ok(formats);
});
app.Run();
app.MapGet("/mimetype/{format}", (string format) =>
{
var mimeType = MimeTypes.MimeTypeMap.GetMimeType($".{format.ToLower()}");
return Results.Ok(mimeType);
});
app.Run();

View File

@@ -2,7 +2,8 @@
"Logging": {
"LogLevel": {
"Default": "Information",
"Microsoft.AspNetCore": "Warning"
"Microsoft.AspNetCore": "Warning",
}
}
},
"AllowedHosts": "*"
}