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Get user Claims from the Request Headers
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using Microsoft.AspNetCore.Http; | |
using Microsoft.AspNetCore.Mvc; | |
using Microsoft.Azure.WebJobs; | |
using Microsoft.Azure.WebJobs.Extensions.Http; | |
using Microsoft.Extensions.Logging; | |
using System.Security.Claims; | |
using System.Linq; | |
using Newtonsoft.Json; | |
using System; | |
using System.Collections.Generic; | |
// DEMO: Get user Claims from the Request Headers | |
// Adopted from https://github.com/MaximRouiller/MaximeRouiller.Azure.AppService.EasyAuth | |
namespace ClaimsDemo.Function | |
{ | |
public static class ClaimsDemo | |
{ | |
[FunctionName("ClaimsDemo")] | |
public static IActionResult Run | |
([HttpTrigger(AuthorizationLevel.Anonymous, "get", "post", Route = null)] | |
HttpRequest req, ILogger log) | |
{ | |
//Extract User ID and Claims from the request headers | |
var principal_name = req.Headers["X-MS-CLIENT-PRINCIPAL-NAME"].FirstOrDefault(); | |
var principal_Id = req.Headers["X-MS-CLIENT-PRINCIPAL-ID"].FirstOrDefault(); | |
string easyAuthProvider = req.Headers["X-MS-CLIENT-PRINCIPAL-IDP"].FirstOrDefault(); | |
string clientPrincipalEncoded = req.Headers["X-MS-CLIENT-PRINCIPAL"].FirstOrDefault(); | |
log.LogInformation("User ID: " + principal_name); | |
log.LogInformation("User Principal ID: " + principal_Id); | |
log.LogInformation("EasyAuth Provider: " + easyAuthProvider); | |
log.LogInformation("Encoded Client Principal: " + clientPrincipalEncoded); | |
//Decode the Client Principal | |
byte[] decodedBytes = Convert.FromBase64String(clientPrincipalEncoded); | |
string clientPrincipalDecoded = System.Text.Encoding.Default.GetString(decodedBytes); | |
// log.LogInformation("Decoded Client Principal: " + clientPrincipalDecoded); | |
ClientPrincipal clientPrincipal = JsonConvert.DeserializeObject<ClientPrincipal>(clientPrincipalDecoded); | |
IEnumerable<Claim> claims = clientPrincipal.Claims.Select(x => new Claim(x.Type, x.Value)); | |
log.LogInformation("Claim Type : Claim Value"); | |
foreach (Claim claim in claims) | |
{ | |
log.LogInformation(claim.Type + " : " + claim.Value + "\n"); | |
} | |
return new OkObjectResult("Success"); | |
} | |
} | |
public class ClientPrincipal | |
{ | |
[JsonProperty("auth_typ")] | |
public string AuthenticationType { get; set; } | |
[JsonProperty("claims")] | |
public IEnumerable<UserClaim> Claims { get; set; } | |
[JsonProperty("name_typ")] | |
public string NameType { get; set; } | |
[JsonProperty("role_typ")] | |
public string RoleType { get; set; } | |
} | |
public class UserClaim | |
{ | |
[JsonProperty("typ")] | |
public string Type { get; set; } | |
[JsonProperty("val")] | |
public string Value { get; set; } | |
} | |
} |
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