How to send the Claims with token in web api - asp.net-web-api

I have a WebApi in .NET Core with token authorization.
I followed a guide to implement it, but the response only shows the token, and it's ok, but I would like to see other claims.
This is my code:
public IActionResult Post([FromBody]Personal personal)
{
if (ModelState.IsValid)
{
var userId = GetUserIdFromCredentials(personal);
if (!userId.HasValue)
{
return Unauthorized();
}
var rolUsuario = _context.Personales.Include(p => p.RolPersonal).Select(x => x.RolPersonal.Descripcion).FirstOrDefault();
var claims = new[]
{
new Claim(JwtRegisteredClaimNames.Sub, rolUsuario),
new Claim(JwtRegisteredClaimNames.Email, personal.CorreoE),
new Claim(JwtRegisteredClaimNames.Jti, Guid.NewGuid().ToString()),
};
var token = new JwtSecurityToken
(
issuer: _configuration["Issuer"],
audience: _configuration["Audience"],
claims: claims,
expires: DateTime.UtcNow.AddHours(5),
notBefore: DateTime.UtcNow,
signingCredentials: new SigningCredentials(new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_configuration["SigningKey"])),
SecurityAlgorithms.HmacSha256)
);
//var token_email = token.Claims.Where(w => w.Type == "email").Select(s => s.Value).FirstOrDefault();
//HttpContext.Session.SetString("token_email", token_email);
return Ok(new{ token = new JwtSecurityTokenHandler().WriteToken(token) });
}
return BadRequest();
}
The result looks like this:
{
"token": "eyJhbGciOiJ....oTT7KI6kcZy-o"
}
I would like to see the email claims for example:
{
"email": bla#bla.com,
"token": "eyJhbGciOiJ....oTT7KI6kcZy-o"
}
How can I achieve this?

You can simply extend the anonymous object that you're already using like this:
return Ok(new { email = personal.CorreoE, token = new JwtSecurityTokenHandler().WriteToken(token)});
The result will look like:
{"email":"email#exmaple.com","token":"eyJ....."}
Beside that, you can of course also decode the token on client side and extract all the claims that you added on server side.
Check https://jwt.io to see the contents of your token.

Related

_userManager.FindByEmailAsync(User.FindFirstValue(ClaimTypes.Email)) returns null

I am having an issue with Claims not populating with ClaimsPrinciple after creating a JWT. I am using ASP.NET Core 6 on VS 2022. The issue raised after configuring identity to include Roles and RolesUsers. I had no issues prior to including these 2 identity tables from the automated generated ones from IdentityModel.
now on creation, I show no errors and receive the JWT token without any issues, but afterwards when I try to authorize the user that log in the ClaimIdentity does not propagate and errors on _userManager.FindByEmailAsync(User.FindFirstValue(ClaimTypes.Email)) showing null.
Here is some code to show the current state of the project.
First is the Method that handles the validation for login users.
[Authorize]
[HttpGet]
public async Task<ActionResult<UserDto>> GetCurrentUser()
{
// Null Exception Error
var user = await _userManager.FindByEmailAsync(User.FindFirstValue(ClaimTypes.Email));
return CreateUserObject(user);
}
UserDto CreateUserObject( AppUser user )
{
return new UserDto
{
DisplayName = user.DisplayName,
Image = null,
Token = _tokenService.CreateToken(user),
Username = user.UserName
};
}
This is my Token Service that handles creating the JWT token from users that Register or Login.
public class TokenService
{
private readonly IConfiguration _config;
public TokenService(IConfiguration config)
{
_config = config;
}
public string CreateToken(AppUser user)
{
var claims = new List<Claim>
{
new Claim(ClaimTypes.Name, user.UserName),
new Claim(ClaimTypes.NameIdentifier, user.Id),
new Claim(ClaimTypes.Email, user.Email)
};
var key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(_config["TokenKey"]));
var creds = new SigningCredentials(key, SecurityAlgorithms.HmacSha512Signature);
var tokenDescriptor = new SecurityTokenDescriptor
{
Subject = new ClaimsIdentity(claims),
Expires = DateTime.Now.AddDays(7.0),
SigningCredentials = creds
};
var tokenHandler = new JwtSecurityTokenHandler();
var token = tokenHandler.CreateToken(tokenDescriptor);
return tokenHandler.WriteToken(token);
}
}
This is what I changed prior to having this issue in my IdentityServiceExtension Class.
public static IServiceCollection AddIdentityServices(this IServiceCollection services, IConfiguration config)
{
services.AddIdentity<AppUser, AppRole>(opt => //Changed AddIdentityCore to AddIdentity to apply AppUser & AppRole
{
opt.Password.RequireNonAlphanumeric = false;
})
.AddEntityFrameworkStores<DataContext>()
.AddSignInManager<SignInManager<AppUser>>()
.AddRoleManager<RoleManager<AppRole>>(); //Added Role Manager for Roles to loaded.
var Key = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(config["TokenKey"]));
services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
.AddJwtBearer(opt =>
{
opt.TokenValidationParameters = new TokenValidationParameters
{
ValidateIssuerSigningKey = true,
IssuerSigningKey = Key,
ValidateIssuer = false,
ValidateAudience = false
};
});
services.AddScoped<TokenService>();
// Added Roles to Policy
services.AddAuthorization(opt =>
{
opt.AddPolicy("Verified", pol =>
pol.RequireRole("User", "Staff", "Admin", "Guest"));
opt.AddPolicy("Restricted", pol =>
pol.RequireRole("User", "Staff", "Admin"));
opt.AddPolicy("EmployeeAccess", pol =>
pol.RequireRole("Staff", "Admin"));
opt.AddPolicy("ManagerAccess", pol =>
pol.RequireRole("Admin"));
});
//////////////////////
return services;
}
Hopefully this is enough information to help me with this issue. I have searched all over online and the resolutions I have seen does not match to my particular issue to solve the problem.
I surprisingly found the issue, so the reason I was having errors was due to not configuring Identity to handle all Identity Models. Prior to my change, I only handled users, but by adding roles and roleusers I had to handle all of Identity Model to prevent losing the claims. Due to this fact, I had to install another Microsoft Package,Microsoft.AspNetCore.Identity.UI, to gain access to the Identity Helper Method (.AddDefaultIdentity()) to configure the generated identity tables. Once added, Identity was fully configured and the issue was resolved. I hope anyone else that need help can use this as a possible solution.

Is possible to protect scope (web api) and authenticate client (web app mvc) in same project?

Good morning,
I need to have in same project both web api and web app mvc.
Web api has to be protected via bearer token and web app mvc has to be authenticated via identity server.
Is it possible protecting a scope and a client in same project?
I think I have to do something like this in startup
//this to protect scope api1
services.AddAuthentication("Bearer")
.AddJwtBearer("Bearer", options =>
{
options.Authority = "http://localhost:5000/";
options.RequireHttpsMetadata = false;
options.Audience = "api1";
});
//this to authenticate mvc client
services.AddAuthentication(options =>
{
options.DefaultScheme = "Cookies";
options.DefaultChallengeScheme = "oidc";
})
.AddCookie("Cookies", options =>
{
options.AccessDeniedPath = "/account/denied";
})
.AddOpenIdConnect("oidc", options =>
{
options.SignInScheme = "Cookies";
options.Authority = "http://localhost:5000",
options.RequireHttpsMetadata = false;
options.ResponseType = "id_token token";
options.ClientId = "mvc-implicit";
options.SaveTokens = true;
options.Scope.Clear();
options.Scope.Add("openid");
options.Scope.Add("profile");
options.Scope.Add("api1");
options.GetClaimsFromUserInfoEndpoint = true;
options.ClaimActions.MapJsonKey("role", "role", "role");
options.TokenValidationParameters = new TokenValidationParameters
{
NameClaimType = "name",
RoleClaimType = "role"
};
});
Now, I have to call my Api1 using client_credential with an external client.
But it returns me at login page.
Is it possible to do what I want?
Protected WebApi and Authenticated MVC client in same project?
Now, I have to call my Api1 using client_credential with an external client. But it returns me at login page.
That seems you misunderstand the scenario . Your MVC application is client also is a resource application which protected by Identity Server (in Config.cs):
public static IEnumerable<ApiResource> GetApis()
{
return new List<ApiResource>
{
new ApiResource("api1", "My API")
};
}
I assume you have api controller in your MVC application :
[Route("api/[controller]")]
[ApiController]
public class ValuesController : ControllerBase
{
// GET: api/Values
[HttpGet]
[Authorize(AuthenticationSchemes = JwtBearerDefaults.AuthenticationScheme)]
public IEnumerable<string> Get()
{
return new string[] { "value1", "value2" };
}
}
And you have config to protect the api actions by using AddJwtBearer :
services.AddAuthentication("Bearer")
.AddJwtBearer("Bearer", options =>
{
options.Authority = "http://localhost:5000/";
options.RequireHttpsMetadata = false;
options.Audience = "api1";
});
That means any request to access the Get action should have an authentication bearer header with access token append , the access token is issued by your Identity Server(endpoint is http://localhost:5000/) and the audience is api1 .
Now your another client could use client credential flow to acquire access token to access your web application :
var client = new HttpClient();
var disco = await client.GetDiscoveryDocumentAsync("http://localhost:5000");
if (disco.IsError)
{
Console.WriteLine(disco.Error);
return;
}
// request token
var tokenResponse = await client.RequestClientCredentialsTokenAsync(new ClientCredentialsTokenRequest
{
Address = disco.TokenEndpoint,
ClientId = "client",
ClientSecret = "secret",
Scope = "api1"
});
And call your protected actions :
var apiClient = new HttpClient();
apiClient.SetBearerToken(tokenResponse.AccessToken);
var response = await apiClient.GetAsync("http://localhost:64146/api/values");
if (!response.IsSuccessStatusCode)
{
Console.WriteLine(response.StatusCode);
}
else
{
var content = await response.Content.ReadAsStringAsync();
Console.WriteLine(JArray.Parse(content));
}
So it won't redirect to login page , since client credential in fact is sending HTTP POST request to get access token with app's credential . There is no login page in this scenario .

Double login to MVC and WebAPI

I develop two separated applications: MVC and WebAPI. On some pages of MVC application I perform ajax requests to WebAPI. Furthermore, I use IdentityServer3 as an authentication/authorization framework.
I've already implemented cookie-based authentication for MVC part and token-based for WebAPI basing on tutorials/samples published on GitHub. Each of them works as intended, but user has to log in twice (separately in MVC and WebAPI), which seems to be reasonable because I've used different authentication types.
Is it possible to use IdentityServer3 in a way that user is required to log in once? I'm wondering if it's a good idea to generate access token by MVC app (after cookie-based authorization) and provide it to JavaScript part of application (the token would be used during ajax calls). I think that this solution allows to avoid double signing in. I've read a lot of posts about similar problems, but they haven't given unambiguous answer.
Edit:
I've followed Paul Taylor's suggestion to use "Hybrid Flow" and I've found a couple of samples which illustrate how to implement it (among other things this tutorial), but I cannot figure out how to perform valid ajax requests to WebAPI. Currently, I get 401 Unauthorized error, though HTTP header Authorization: Bearer <access token> is set for all ajax requests.
IdentityServer project
Scopes:
var scopes = new List<Scope>
{
StandardScopes.OfflineAccess,
new Scope
{
Enabled = true,
Name = "roles",
Type = ScopeType.Identity,
Claims = new List<ScopeClaim>
{
new ScopeClaim(IdentityServer3.Core.Constants.ClaimTypes.Role, true)
}
},
new Scope
{
Enabled = true,
DisplayName = "Web API",
Name = "api",
ScopeSecrets = new List<Secret>
{
new Secret("secret".Sha256())
},
Claims = new List<ScopeClaim>
{
new ScopeClaim(IdentityServer3.Core.Constants.ClaimTypes.Role, true)
},
Type = ScopeType.Resource
}
};
scopes.AddRange(StandardScopes.All);
Client:
new Client
{
ClientName = "MVC Client",
ClientId = "mvc",
Flow = Flows.Hybrid,
ClientSecrets =
{
new Secret("secret".Sha256())
},
AllowedScopes = new List<string>
{
Constants.StandardScopes.OpenId,
Constants.StandardScopes.Profile,
Constants.StandardScopes.Email,
Constants.StandardScopes.Roles,
Constants.StandardScopes.Address,
Constants.StandardScopes.OfflineAccess,
"api"
},
RequireConsent = false,
AllowRememberConsent = true,
AccessTokenType = AccessTokenType.Reference,
RedirectUris = new List<string>
{
"http://localhost:48197/"
},
PostLogoutRedirectUris = new List<string>
{
"http://localhost:48197/"
},
AllowAccessTokensViaBrowser = true
}
MVC application project
Startup configuration
const string AuthorityUri = "https://localhost:44311/identity";
public void Configuration(IAppBuilder app)
{
JwtSecurityTokenHandler.InboundClaimTypeMap = new Dictionary<string, string>();
app.UseCookieAuthentication(new CookieAuthenticationOptions
{
AuthenticationType = "Cookies"
});
app.UseOpenIdConnectAuthentication(new OpenIdConnectAuthenticationOptions
{
ClientId = "mvc",
Authority = AuthorityUri,
RedirectUri = "http://localhost:48197/",
ResponseType = "code id_token",
Scope = "openid profile email roles api offline_access",
TokenValidationParameters = new TokenValidationParameters
{
NameClaimType = "name",
RoleClaimType = "role"
},
SignInAsAuthenticationType = "Cookies",
Notifications = new OpenIdConnectAuthenticationNotifications
{
AuthorizationCodeReceived = async n =>
{
var tokenClient = new TokenClient(AuthorityUri + "/connect/token", "mvc", "secret");
TokenResponse tokenResponse = await tokenClient.RequestAuthorizationCodeAsync(n.Code, n.RedirectUri);
if (tokenResponse.IsError)
throw new Exception(tokenResponse.Error);
UserInfoClient userInfoClient = new UserInfoClient(AuthorityUri + "/connect/userinfo");
UserInfoResponse userInfoResponse = await userInfoClient.GetAsync(tokenResponse.AccessToken);
ClaimsIdentity id = new ClaimsIdentity(n.AuthenticationTicket.Identity.AuthenticationType);
id.AddClaims(userInfoResponse.Claims);
id.AddClaim(new Claim("access_token", tokenResponse.AccessToken));
id.AddClaim(new Claim("expires_at", DateTime.Now.AddSeconds(tokenResponse.ExpiresIn).ToLocalTime().ToString()));
id.AddClaim(new Claim("refresh_token", tokenResponse.RefreshToken));
id.AddClaim(new Claim("id_token", n.ProtocolMessage.IdToken));
id.AddClaim(new Claim("sid", n.AuthenticationTicket.Identity.FindFirst("sid").Value));
n.AuthenticationTicket = new AuthenticationTicket(
new ClaimsIdentity(id.Claims, n.AuthenticationTicket.Identity.AuthenticationType, "name", "role"),
n.AuthenticationTicket.Properties);
},
RedirectToIdentityProvider = n => { // more code }
}
});
}
After I receive access token, I store it in the sessionStorage.
#model IEnumerable<System.Security.Claims.Claim>
<script>
sessionStorage.accessToken = '#Model.First(c => c.Type == "access_token").Value';
</script>
Following JavaScript function is used to perform ajax requests:
function ajaxRequest(requestType, url, parameters)
{
var headers = {};
if (sessionStorage.accessToken) {
headers['Authorization'] = 'Bearer ' + sessionStorage.accessToken;
}
$.ajax({
url: url,
method: requestType,
dataType: 'json',
data: parameters,
headers: headers
});
}
WebAPI project
Startup configuration:
JwtSecurityTokenHandler.InboundClaimTypeMap = new Dictionary<string, string>();
app.UseIdentityServerBearerTokenAuthentication(new IdentityServerBearerTokenAuthenticationOptions
{
Authority = "https://localhost:44311/identity",
ClientId = "mvc",
ClientSecret = "secret",
RequiredScopes = new[] { "api", "roles" }
});
Could you tell me what I'm doing wrong?
Edit (solved)
I had invalid configuration of WebAPI because nomenclature is misleading. It turned out that ClientId and ClientSecret should contian name of scope and its secret (link to reported issue).
Following Startup configuration of WebAPI works as intended:
app.UseIdentityServerBearerTokenAuthentication(new IdentityServerBearerTokenAuthenticationOptions
{
Authority = "https://localhost:44311/identity",
// It has been changed:
ClientId = "api", // Scope name
ClientSecret = "secret", // Scope secret
RequiredScopes = new[] { "api", "roles" }
});
You need to use IdentityServer3's "Hybrid Flow".
Here's a tutorial on how to implement it with IdentityServer3. https://identityserver.github.io/Documentation/docsv2/overview/mvcGettingStarted.html
This page for an explanation of how the Hybrid Flow works, and how to implement it (using IdentityServer4 - which unlike IdentityServer3, is still actively developed in case you have the option to upgrade). http://docs.identityserver.io/en/release/quickstarts/5_hybrid_and_api_access.html.

How to add claims to access token get from IdentityServer3 using resource owner flow with javascript client

I use the resource owner flow with IdentityServer3 and send get token request to identity server token endpoint with username and password in javascript as below:
function getToken() {
var uid = document.getElementById("username").value;
var pwd = document.getElementById("password").value;
var xhr = new XMLHttpRequest();
xhr.onload = function (e) {
console.log(xhr.status);
console.log(xhr.response);
var response_data = JSON.parse(xhr.response);
if (xhr.status === 200 && response_data.access_token) {
getUserInfo(response_data.access_token);
getValue(response_data.access_token);
}
}
xhr.open("POST", tokenUrl);
var data = {
username: uid,
password: pwd,
grant_type: "password",
scope: "openid profile roles",
client_id: 'client_id'
};
var body = "";
for (var key in data) {
if (body.length) {
body += "&";
}
body += key + "=";
body += encodeURIComponent(data[key]);
}
xhr.setRequestHeader("Authorization", "Basic " + btoa(client_id + ":" + client_secret));
xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
xhr.send(body);
}
The access token is returned from identity server and user is authenticated. Then I use this token to send request to my Web Api.
The problem is that when I check if the user is assigned a role, I find the claim doesn't exist.
[Authorize]
// GET api/values
public IEnumerable<string> Get()
{
var id = RequestContext.Principal as ClaimsPrincipal;
bool geek = id.HasClaim("role", "Geek"); // false here
bool asset_mgr = id.HasClaim("role", "asset_manager"); // false here
return new string[] { "value1", "value2" };
}
Here is how the client is defined in identity server.
new Client
{
ClientName = "Client",
ClientId = "client_id",
Flow = Flows.ResourceOwner,
RequireConsent = false,
AllowRememberConsent = false,
AllowedScopes = new List<string>
{
"openid",
"profile",
"roles",
"sampleApi"
},
AbsoluteRefreshTokenLifetime = 86400,
SlidingRefreshTokenLifetime = 43200,
RefreshTokenUsage = TokenUsage.OneTimeOnly,
RefreshTokenExpiration = TokenExpiration.Sliding,
ClientSecrets = new List<Secret>
{
new Secret("4C701024-0770-4794-B93D-52B5EB6487A0".Sha256())
},
},
and this is how the user is defined:
new InMemoryUser
{
Username = "bob",
Password = "secret",
Subject = "1",
Claims = new[]
{
new Claim(Constants.ClaimTypes.GivenName, "Bob"),
new Claim(Constants.ClaimTypes.FamilyName, "Smith"),
new Claim(Constants.ClaimTypes.Role, "Geek"),
new Claim(Constants.ClaimTypes.Role, "Foo")
}
}
How can I add claims to the access_token in this case? Thanks a lot!
I have just spent a while figuring this out myself. #leastprivilege's comment on Yang's answer had the clue, this answer is just expanding on it.
It's all down to how the oAuth and OIDC specs evolved, it's not an artefact of IdentityServer (which is awesome).
Firstly, here is a fairly decent discussion of the differences between identity tokens and access tokens: https://github.com/IdentityServer/IdentityServer3/issues/2015 which is worth a read.
With Resource Owner flow, like you are doing, you will always get an Access Token. By default and per the spec, you shouldn't include claims in that token (see the above link for why). But, in practice, it is very nice when you can; it saves you extra effort on both client and server.
What Leastprivilege is referring to is that you need to create a scope, something like this:
new Scope
{
Name = "member",
DisplayName = "member",
Type = ScopeType.Resource,
Claims = new List<ScopeClaim>
{
new ScopeClaim("role"),
new ScopeClaim(Constants.ClaimTypes.Name),
new ScopeClaim(Constants.ClaimTypes.Email)
},
IncludeAllClaimsForUser = true
}
And then you need to request that scope when you ask for the token. I.e. your line
scope: "openid profile roles", should change to scope: "member", (well, I say that - scopes play a dual role here, as far as I can see - they are also a form of control, i.e. the client is asking for certain scopes and can be rejected if it is not allowed those but that is another topic).
Note the important line that eluded me for a while, which is Type = ScopeType.Resource (because Access Tokens are about controlling access to resources). This means it will apply to Access Tokens and the specified claims will be included in the token (I think, possibly, against spec but wonderfully).
Finally, in my example I have included both some specific claims as well as IncludeAllClaimsForUser which is obviously silly, but just wanted to show you some options.
I find I can achieve this by replacing the default IClaimsProvider of IdentityServerServiceFactory.
The cusomized IClaimsProvider is as below:
public class MyClaimsProvider : DefaultClaimsProvider
{
public MaccapClaimsProvider(IUserService users) : base(users)
{
}
public override Task<IEnumerable<Claim>> GetAccessTokenClaimsAsync(ClaimsPrincipal subject, Client client, IEnumerable<Scope> scopes, ValidatedRequest request)
{
var baseclaims = base.GetAccessTokenClaimsAsync(subject, client, scopes, request);
var claims = new List<Claim>();
if (subject.Identity.Name == "bob")
{
claims.Add(new Claim("role", "super_user"));
claims.Add(new Claim("role", "asset_manager"));
}
claims.AddRange(baseclaims.Result);
return Task.FromResult(claims.AsEnumerable());
}
public override Task<IEnumerable<Claim>> GetIdentityTokenClaimsAsync(ClaimsPrincipal subject, Client client, IEnumerable<Scope> scopes, bool includeAllIdentityClaims, ValidatedRequest request)
{
var rst = base.GetIdentityTokenClaimsAsync(subject, client, scopes, includeAllIdentityClaims, request);
return rst;
}
}
Then, replace the IClaimsProvider like this:
// custom claims provider
factory.ClaimsProvider = new Registration<IClaimsProvider>(typeof(MyClaimsProvider));
The result is that, when the request for access token is sent to token endpoint the claims are added to the access_token.
Not only that I tried other methods, I tried all possible combinations of scopes etc. All I could read in the access token was "scope", "scope name", for Resource Flow there were no claims I have added period.
I had to do all this
Add custom UserServiceBase and override AuthenticateLocalAsync since I have username/password there and I need both to fetch things from the database
Add claims that I need in the same function (this on itself will not add claim to Access Token, however you will able to read them in various ClaimsPrincipal parameters around)
Add custom DefaultClaimsProvider and override GetAccessTokenClaimsAsync where ClaimsPrincipal subject contains the claims I previously set, I just take them out and put again into ølist of claims for the result.
I guess this last step might be done overriding GetProfileDataAsync in the custom UserServiceBase, but the above just worked so I did not want to bother.
The general problem is not how to set claims, it is where you populate them. You have to override something somewhere.
This here worked for me since I needed data from a database, someone else should populate claims elsewhere. But they are not going to magically appear just because you nicely set Scopes and Claims Identity Server configurations.
Most of the answers say not a word about where to set the claim values properly. In each particular override you have done, the passed parameters, when they have claims, in the function are attached to identity or access token.
Just take care of that and all will be fine.

Passing and verifying the OWIN Bearer token in Query String in WebAPI

Short Version:
I need to pass and verify the OWIN bearing token as a query parameter rather than in the request header.
How do I then get the method to authorized based on that token string?
Background:
I want to call a webapi method to download a file as a stream (and never want the user to download it from a known file location).
I can't get this to work if I also need to set a custom Request header i.e. the bearer token.
I should be able to pass the token in the query string - but don't know how to get that token to then authenticate the user.
Do I need to filter? Do I need a special claim etc?
Does the webapi method need to include "access_token" as one of the function parameters?
For completeness, here's another neat solution.
Extract:
app.Use(async (context, next) =>
{
if (context.Request.QueryString.HasValue)
{
if (string.IsNullOrWhiteSpace(context.Request.Headers.Get("Authorization")))
{
var queryString = HttpUtility.ParseQueryString(context.Request.QueryString.Value);
string token = queryString.Get("access_token");
if (!string.IsNullOrWhiteSpace(token))
{
context.Request.Headers.Add("Authorization", new[] { string.Format("Bearer {0}", token) });
}
}
}
await next.Invoke();
});
I wrote about how that works here:
http://leastprivilege.com/2013/10/31/retrieving-bearer-tokens-from-alternative-locations-in-katanaowin/
or do it like this
app.UseIdentityServerBearerTokenAuthentication(new IdentityServerBearerTokenAuthenticationOptions
{
Authority = IdentityConfig.Authority,
RequiredScopes = new[] { "api" },
TokenProvider = new OAuthBearerAuthenticationProvider
{
OnRequestToken = ctx =>
{
if (String.IsNullOrWhiteSpace(ctx.Token) && ctx.Request.QueryString.HasValue)
{
NameValueCollection parsedQuery = HttpUtility.ParseQueryString(ctx.Request.QueryString.Value);
ctx.Token = parsedQuery["access_token"];
}
return Task.FromResult(0);
}
}
});

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