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BasicAuthenticationHandler.cs
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BasicAuthenticationHandler.cs
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using Microsoft.AspNetCore.Authentication;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Microsoft.Extensions.Primitives;
using System;
using System.Linq;
using System.Security.Claims;
using System.Text.Encodings.Web;
using System.Threading.Tasks;
namespace Tailwind.Traders.Product.Api.Security
{
public class BasicAuthenticationHandler : AuthenticationHandler<AuthenticationSchemeOptions>
{
private const string AuthorizationHeaderName = "Authorization";
private string _currentUserId;
public BasicAuthenticationHandler(
IOptionsMonitor<AuthenticationSchemeOptions> options,
ILoggerFactory logger,
UrlEncoder encoder,
ISystemClock clock)
: base(options, logger, encoder, clock)
{
}
protected override async Task<AuthenticateResult> HandleAuthenticateAsync()
{
if (!Request.Headers.ContainsKey(AuthorizationHeaderName))
{
return await Task.FromResult(AuthenticateResult.Fail("No Authorization Header Provided"));
}
var authHeader = Request.Headers[AuthorizationHeaderName];
if (authHeader != StringValues.Empty)
{
var header = authHeader.FirstOrDefault();
if (!string.IsNullOrEmpty(header) && header.StartsWith("Email ") && header.Length > "Email ".Length)
{
_currentUserId = header.Substring("Email ".Length);
}
else
{
return await Task.FromResult(AuthenticateResult.Fail("Invalid Authorization Header"));
}
}
if (!string.IsNullOrEmpty(_currentUserId))
{
var claims = new[] {
new Claim("emails", _currentUserId),
new Claim("name", "Demo user"),
new Claim("nonce", Guid.NewGuid().ToString()),
new Claim("ttp://schemas.microsoft.com/identity/claims/identityprovider", "BasicAuthentication"),
new Claim("nonce", Guid.NewGuid().ToString()),
new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname","User"),
new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname","Microsoft")};
var identity = new ClaimsIdentity(claims, Scheme.Name);
var principal = new ClaimsPrincipal(identity);
var ticket = new AuthenticationTicket(principal, Scheme.Name);
return await Task.FromResult(AuthenticateResult.Success(ticket));
}
return await Task.FromResult(AuthenticateResult.Fail("Invalid UserId"));
}
}
}