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DNS Auflösung bei E-Mail Adressen: DNS Client getauscht, BasicAuthenticationHandler implementiert.

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This commit is contained in:
Andreas Müller
2021-12-21 22:26:58 +01:00
parent e5b9959d8e
commit 7a71bd91d5
5 changed files with 120 additions and 33 deletions
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24
AMWD.Common.AspNetCore/AMWD.Common.AspNetCore.csproj
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@@ -35,30 +35,8 @@
<None Include="../icon.png" Pack="true" PackagePath="/" />
</ItemGroup>
<ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
<PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="3.1.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="3.1.0" />
</ItemGroup>
<ItemGroup Condition="'$(TargetFramework)' == 'net5.0'">
<PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="5.0.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="5.0.0" />
</ItemGroup>
<ItemGroup Condition="'$(TargetFramework)' == 'net6.0'">
<PackageReference Include="Microsoft.Extensions.Hosting.Abstractions" Version="6.0.0" />
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.0" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.1.0" />
<PackageReference Include="Microsoft.AspNetCore.HttpOverrides" Version="1.0.0" />
<PackageReference Include="Microsoft.AspNetCore.Mvc.Abstractions" Version="2.1.0" />
<PackageReference Include="Microsoft.AspNetCore.Mvc.Core" Version="2.0.4" />
<PackageReference Include="Microsoft.AspNetCore.Mvc.Razor" Version="2.0.4" />
<PackageReference Include="Microsoft.AspNetCore.Mvc.TagHelpers" Version="2.0.4" />
<PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="1.0.0" />
<PackageReference Include="Microsoft.Extensions.Identity.Core" Version="2.0.4" />
<FrameworkReference Include="Microsoft.AspNetCore.App" />
<PackageReference Include="Newtonsoft.Json" Version="10.0.1" />
<PackageReference Include="Unclassified.DeepConvert" Version="1.3.0" />
<PackageReference Include="Unclassified.NetRevisionTask" Version="0.4.2">

70
AMWD.Common.AspNetCore/AuthenticationHandler/BasicAuthenticationHandler.cs Normal file
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@@ -0,0 +1,70 @@
using System;
using System.Net.Http.Headers;
using System.Security.Claims;
using System.Text;
using System.Text.Encodings.Web;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
namespace Microsoft.AspNetCore.Authentication
{
/// <summary>
/// Implements the <see cref="AuthenticationHandler{TOptions}"/> for Basic Authentication.
/// </summary>
public class BasicAuthenticationHandler : AuthenticationHandler<AuthenticationSchemeOptions>
{
private readonly ILogger logger;
private readonly IBasicAuthenticationValidator validator;
/// <summary>
/// Initializes a new instance of the <see cref="BasicAuthenticationHandler"/> class.
/// </summary>
/// <param name="options">The authentication scheme options.</param>
/// <param name="loggerFactory">The logger factory.</param>
/// <param name="encoder">The URL encoder.</param>
/// <param name="clock">The system clock.</param>
/// <param name="validator">An basic autentication validator implementation.</param>
public BasicAuthenticationHandler(IOptionsMonitor<AuthenticationSchemeOptions> options, ILoggerFactory loggerFactory, UrlEncoder encoder, ISystemClock clock, IBasicAuthenticationValidator validator)
: base(options, loggerFactory, encoder, clock)
{
logger = loggerFactory.CreateLogger<BasicAuthenticationHandler>();
this.validator = validator;
}
/// <inheritdoc/>
protected override async Task<AuthenticateResult> HandleAuthenticateAsync()
{
var endpoint = Context.GetEndpoint();
if (endpoint?.Metadata?.GetMetadata<IAllowAnonymous>() != null)
return AuthenticateResult.NoResult();
if (!Request.Headers.ContainsKey("Authorization"))
return AuthenticateResult.Fail("Authorization header missing");
ClaimsPrincipal principal;
try
{
var authHeader = AuthenticationHeaderValue.Parse(Request.Headers["Authorization"]);
string plain = Encoding.UTF8.GetString(Convert.FromBase64String(authHeader.Parameter));
string[] credentials = plain.Split(':', 2);
var ipAddress = Context.GetRemoteIpAddress();
principal = await validator.ValidateAsync(credentials[0], credentials[1], ipAddress);
}
catch (Exception ex)
{
logger.LogError(ex, $"Handling the Basic Authentication failed: {ex.Message}");
return AuthenticateResult.Fail("Authorization header invalid");
}
if (principal == null)
return AuthenticateResult.Fail("Invalid credentials");
var ticket = new AuthenticationTicket(principal, Scheme.Name);
return AuthenticateResult.Success(ticket);
}
}
}

21
AMWD.Common.AspNetCore/AuthenticationHandler/IBasicAuthenticationValidator.cs Normal file
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@@ -0,0 +1,21 @@
using System.Net;
using System.Security.Claims;
using System.Threading.Tasks;
namespace Microsoft.AspNetCore.Authentication
{
/// <summary>
/// Interface representing the validation of a basic authentication.
/// </summary>
public interface IBasicAuthenticationValidator
{
/// <summary>
/// Validates a username and password for Basic Authentication.
/// </summary>
/// <param name="username">A username.</param>
/// <param name="password">A password.</param>
/// <param name="remoteAddress">The remote client's IP address.</param>
/// <returns>The validated user principal or <c>null</c>.</returns>
Task<ClaimsPrincipal> ValidateAsync(string username, string password, IPAddress remoteAddress);
}
}