Azure HttpTrigger函数中的HttpRequest.HttpContext.User(ClaimsPrin

Question

[FunctionName("GetDetails")]
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "v1/{Id}/details")] HttpRequest request, int Id)
{
//my code here to get claims from the User context (request.HttpContext.User).
}

我还尝试在函数中注入ClaimsPrincipal对象，如下所示：

[FunctionName("GetDetails")]
public async Task<IActionResult> Run(
[HttpTrigger(AuthorizationLevel.Anonymous, "get", Route = "v1/{Id}/details")] HttpRequest request, int Id, **ClaimsPrincipal principal**)
{
//my code here to get claims from the User context (request.HttpContext.User).
}

结果还是一样。为了在本地访问该功能，我正在传递我的Bearer访问令牌，如下所示：授权：承载

你知道我在这里错过了什么吗？

Answer 1

根据我的测试，使用request.HttpContext.User可以在Azure portal中获得受AAD保护的函数的身份验证信息。

我不明白你为什么在本地通过Bearer，但如果你有这个要求，你可以参考以下代码：

req.Headers.TryGetValue("Authorization", out var headers);
var authorization = headers.First();
var jwt = authorization.Split(' ')[1];
var handler = new JwtSecurityTokenHandler();
var token = handler.ReadJwtToken(jwt);
var unique_name = token.Claims.First(claim => claim.Type == "unique_name").Value;
log.LogInformation(unique_name);

您可以参考C#中的解码JWT以获得授权。

注：

如果您遇到此错误：

System.Private.CoreLib: Exception while executing function: Function1. FunctionPa: Could not load file or assembly 'System.IdentityModel.Tokens.Jwt, Version=6.8.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'. The system cannot find the file specified.

您可以在csproj文件中添加<_FunctionsSkipCleanOutput>true</_FunctionsSkipCleanOutput>：

<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp3.1</TargetFramework>
<AzureFunctionsVersion>v3</AzureFunctionsVersion>
<_FunctionsSkipCleanOutput>true</_FunctionsSkipCleanOutput>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.NET.Sdk.Functions" Version="3.0.11" />
<PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="6.8.0" />
</ItemGroup>
<ItemGroup>
<None Update="host.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
</None>
<None Update="local.settings.json">
<CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
<CopyToPublishDirectory>Never</CopyToPublishDirectory>
</None>
</ItemGroup>
</Project>