src/ReverseProxy/Configuration/ConfigProvider/ConfigurationReadingExtensions.cs - main - aprogrammer/reverse-proxy-ms-yarp

src/ReverseProxy/Configuration/ConfigProvider/ConfigurationReadingExtensions.cs

75 строк3 KB

Chris Ross

Make MaxRequestBodySize configurable #640 (#1947)

02 дек 2022, 22:57

02 дек 2022, 22:577cef5f2

// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Linq;

namespace Microsoft.Extensions.Configuration;

internal static class ConfigurationReadingExtensions
{
    internal static int? ReadInt32(this IConfiguration configuration, string name)
    {
        return configuration[name] is string value ? int.Parse(value, NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture) : null;
    }

    internal static long? ReadInt64(this IConfiguration configuration, string name)
    {
        return configuration[name] is string value ? long.Parse(value, NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture) : null;
    }

    internal static double? ReadDouble(this IConfiguration configuration, string name)
    {
        return configuration[name] is string value ? double.Parse(value, CultureInfo.InvariantCulture) : null;
    }

    internal static TimeSpan? ReadTimeSpan(this IConfiguration configuration, string name)
    {
        // Format "c" => [-][d'.']hh':'mm':'ss['.'fffffff]. 
        // You also can find more info at https://docs.microsoft.com/en-us/dotnet/standard/base-types/standard-timespan-format-strings#the-constant-c-format-specifier
        return configuration[name] is string value ? TimeSpan.ParseExact(value, "c", CultureInfo.InvariantCulture) : null;
    }

    internal static Uri? ReadUri(this IConfiguration configuration, string name)
    {
        return configuration[name] is string value ? new Uri(value) : null;
    }

    internal static TEnum? ReadEnum<TEnum>(this IConfiguration configuration, string name) where TEnum : struct
    {
        return configuration[name] is string value ? Enum.Parse<TEnum>(value, ignoreCase: true) : null;
    }

    internal static bool? ReadBool(this IConfiguration configuration, string name)
    {
        return configuration[name] is string value ? bool.Parse(value) : null;
    }

    internal static Version? ReadVersion(this IConfiguration configuration, string name)
    {
        return configuration[name] is string value && !string.IsNullOrEmpty(value) ? Version.Parse(value + (value.Contains('.') ? "" : ".0")) : null;
    }

    internal static IReadOnlyDictionary<string, string>? ReadStringDictionary(this IConfigurationSection section)
    {
        if (section.GetChildren() is var children && !children.Any())
        {
            return null;
        }

        return new ReadOnlyDictionary<string, string>(children.ToDictionary(s => s.Key, s => s.Value!, StringComparer.OrdinalIgnoreCase));
    }

    internal static string[]? ReadStringArray(this IConfigurationSection section)
    {
        if (section.GetChildren() is var children && !children.Any())
        {
            return null;
        }

        return children.Select(s => s.Value!).ToArray();
    }
}