JsonHelpers.cs

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using System.Net.Http.Headers;
using System.Text;
using System.Text.Json;
 
namespace System.Net.Http.Json;
 
internal static class JsonHelpers
{
    internal static readonly JsonSerializerOptions s_defaultSerializerOptions = new JsonSerializerOptions(JsonSerializerDefaults.Web);
 
    internal static MediaTypeHeaderValue GetDefaultMediaType()
    {
        return new MediaTypeHeaderValue("application/json")
        {
            CharSet = "utf-8"
        };
    }
 
    internal static Encoding GetEncoding(string charset)
    {
        Encoding result = null;
        if (charset != null)
        {
            try
            {
                result = ((charset.Length <= 2 || charset[0] != '"' || charset[charset.Length - 1] != '"') ? Encoding.GetEncoding(charset) : Encoding.GetEncoding(charset.Substring(1, charset.Length - 2)));
            }
            catch (ArgumentException innerException)
            {
                throw new InvalidOperationException(System.SR.CharSetInvalid, innerException);
            }
        }
        return result;
    }
}