82 lines
No EOL
2.8 KiB
C#
82 lines
No EOL
2.8 KiB
C#
using System.Text;
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using Microsoft.AspNetCore.Mvc;
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using Microsoft.AspNetCore.Mvc.Filters;
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using Microsoft.AspNetCore.Mvc.Formatters;
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using Microsoft.Extensions.Options;
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namespace Iceshrimp.Backend.Controllers.Attributes;
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public abstract class UseJsonAttribute : Attribute, IAsyncActionFilter
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{
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public Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
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{
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return next();
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}
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}
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public class UseNewtonsoftJsonAttribute : UseJsonAttribute;
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internal class JsonInputMultiFormatter : TextInputFormatter
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{
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public JsonInputMultiFormatter()
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{
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SupportedEncodings.Add(UTF8EncodingWithoutBOM);
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SupportedEncodings.Add(UTF16EncodingLittleEndian);
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SupportedMediaTypes.Add("text/json");
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SupportedMediaTypes.Add("application/json");
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SupportedMediaTypes.Add("application/*+json");
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}
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public override async Task<InputFormatterResult> ReadRequestBodyAsync(
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InputFormatterContext context, Encoding encoding
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)
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{
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var mvcOpt = context.HttpContext.RequestServices.GetRequiredService<IOptions<MvcOptions>>().Value;
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var formatters = mvcOpt.InputFormatters;
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TextInputFormatter? formatter;
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var endpoint = context.HttpContext.GetEndpoint();
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if (endpoint?.Metadata.GetMetadata<UseNewtonsoftJsonAttribute>() != null)
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// We can't use OfType<NewtonsoftJsonInputFormatter> because NewtonsoftJsonPatchInputFormatter exists
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formatter = (NewtonsoftJsonInputFormatter?)formatters
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.FirstOrDefault(f => typeof(NewtonsoftJsonInputFormatter) == f.GetType());
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else
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// Default to System.Text.Json
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formatter = formatters.OfType<SystemTextJsonInputFormatter>().FirstOrDefault();
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if (formatter == null) throw new Exception("Failed to resolve formatter");
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var result = await formatter.ReadRequestBodyAsync(context, encoding);
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return result;
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}
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}
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internal class JsonOutputMultiFormatter : TextOutputFormatter
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{
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public JsonOutputMultiFormatter()
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{
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SupportedEncodings.Add(Encoding.UTF8);
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SupportedEncodings.Add(Encoding.Unicode);
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SupportedMediaTypes.Add("text/json");
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SupportedMediaTypes.Add("application/json");
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SupportedMediaTypes.Add("application/*+json");
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}
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public override async Task WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding)
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{
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var mvcOpt = context.HttpContext.RequestServices.GetRequiredService<IOptions<MvcOptions>>().Value;
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var formatters = mvcOpt.OutputFormatters;
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TextOutputFormatter? formatter;
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var endpoint = context.HttpContext.GetEndpoint();
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if (endpoint?.Metadata.GetMetadata<UseNewtonsoftJsonAttribute>() != null)
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formatter = formatters.OfType<NewtonsoftJsonOutputFormatter>().FirstOrDefault();
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else
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// Default to System.Text.Json
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formatter = formatters.OfType<SystemTextJsonOutputFormatter>().FirstOrDefault();
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if (formatter == null) throw new Exception("Failed to resolve formatter");
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await formatter.WriteResponseBodyAsync(context, selectedEncoding);
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}
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} |