How to accept two authentication schemes in IdentityServer4? - oauth-2.0

Currently my app is accepting Cookies ("idsrv.session") to authenticate the user, however when i try to add the "bearer" token in the hearder of a request it just says unauthorized.
However if i change the configuration of the IdServer but adding ".AddJwtBearer" it accepts now a request with an header containing the "bearer" token but no longer accepts requests containing cookies.
Is it possible to implement both approaches, to accept cookies or in case no cookie is received, to check if the header contains a "bearer" token?
Thanks in advance! =)

Related

Salesforce OAuth User Agent Flow: obtain refresh token with

I am developing a web application that allows any user to connect with its Salesforce account. I've implemented User-Agent Flow and I obtain correctly access_token and other info but I can't obtain refresh_token, even if I have the correct scopes (api, web, refresh_token, offline_access).
This is the request I use:
https://login.salesforce.com/services/oauth2/authorize?response_type=token&scope=refresh_token&client_id=[MY_CLIENT_ID]&redirect_uri=[MY_REDIRECT_URL]
And my redirect URL is:
http://[MYSITE].com/#/services/oauth2/success
(that corresponds to the host from where I make the call)
This call correctly gives me access_token but not refresh_token.
if I use "https" instead "http" as redirect uri I receive this error:
error=invalid_scope&error_description=the requested scope is not available
From the documentation, I read that:
The refresh token for the user-agent flow is only issued if you
requested scope=refresh_token and one of the following scenarios is
true:
....
The redirect URL host matches the request host and includes the servlet services/oauth2/success.
...
I think to be in this case, what am I doing wrong?
Thanks in advance
Try adding Perform requests at any time (refresh_token, offline_access) under Selected OAuth Scopes in your connected app

Keycloak User Logout

I'm having trouble to allow users to logout from an application that uses Keycloak for access management.
I have found this topic being discussed here and there, but not clear instructions on how to handle the logout.
I tried to cause the logout of an user redirecting the browser to an endpoint of the following format:
https://example.com/auth/realms/myrealm/protocol/openid-connect/logout?id_token_hint=mytoken&post_logout_redirect_uri=https://example.com/initialpage/
What I used as "mytoken" was the access_token I had obtained making a post request to the endpoint:
https://example.com/auth/realms/playipintern/protocol/openid-connect/token
passing to it parameters like the ones bellow:
grant_type="authorization_code"
code=code_obtained_from_a_url_to_which_keycloak_redirected_the_browser
client_id=client_id_created_using_key_cloak_gui
redirect_uri=the_to_which_keycloak_redirected_the_browser
and reading the body of the response. The content of the body was a json, like the one bellow:
{
'access_token': 'long_token_I_used_latter_as_token_hint_trying_to_logout',
'expires_in': 300,
'refresh_expires_in': 1800,
'refresh_token': 'other_long_token',
'token_type': 'bearer',
'not-before-policy': 0,
'session_state': 'a_shorter_code',
'scope': 'email profile'
}
My logout attempt resulted in the following message in Keycloaks log:
22:53:51,686 WARN [org.keycloak.events] (default task-24) type=LOGOUT_ERROR, realmId=playipintern, clientId=null, userId=null, ipAddress=192.168.16.1, error=invalid_token
and the response said "We are sorry, session not active".
Now I'm aware that I should have used the id_token and not the access_token to logout, but received no id_token in the json.
Somewhere, someone said I should have included
scope=openid
in the parameters that I used to obtain the token. I did it, expecting to find an "id_token" field in the json, but nothing changed.
Someone else reported to have needed to create a scope (I believe using Keycloak's GUI) named "openid" to obtain the token. That didn't make much sense to me, but I tried it anyway and added the just created scope to the client scopes using Keycloak's GUI again. Oncemore, the json didn't change.
I tried to use the refresh_token as the id_token, but that also resulted in an invalid token message.
I don't know what to try now. Any help is appreciated.
Thank you.
/token endpoint returns only the access token by default. No refresh token is returned and no user session is created on the Keycloak side upon successful authentication by default. Due to the lack of refresh token, re-authentication is required when the access token expires. However, this situation does not mean any additional overhead for the Keycloak server because sessions are not created by default.
In this situation, logout is unnecessary. However, issued access tokens can be revoked by sending requests to the OAuth2 Revocation Endpoint as described in the OpenID Connect Endpoints section:
/realms/{realm-name}/protocol/openid-connect/revoke
Example:
POST /revoke HTTP/1.1
Host: server.example.com
Content-Type: application/x-www-form-urlencoded
Authorization: Basic czZCaGRSa3F0MzpnWDFmQmF0M2JW
token=45ghiukldjahdnhzdauz&token_type_hint=access_token
You need to put your token in place of 45ghiukldjahdnhzdauz.
token_type_hint can take either access_token or refresh_token as value to define which type of token you want to revoke.
You will have to add scope=openid to your initial request to http://example.com/auth/realms/playipintern/protocol/openid-connect/auth (note the /auth instead of /token at the end) before the redirect from where you copied the access code.
You can find further information and explanation in this article.

Why send "Bearer" text in Header

It has always been haunting me but i can't find the answer.
When sending bearer token, why does one send the "Bearer" string also usually (i.e: Bearer abcd1234), isnt it enough with just the token only?
The Authorization header can be used with different authorize schemes like Basic or Digest. The Bearer scheme indicates that you are using a bearer token.
The HTTP authorization scheme can be extended with custom schemes.
See https://www.rfc-editor.org/rfc/rfc2617 for more information

How to request access token from Battle.net OAuth with authorization code?

I have a hobby project in mind to use battle.net login. I'm wondering how I can obtain the access token from the API after receiving the authorization code.
This is Oauth flow question rather than a battle.net question.
Currently I can successfully authorize the user for my app which is registered in dev.battle.net and then I try to use the authorization code returned from the battle.net login to obtain the access token by sending a request to https://<region>.battle.net/oauth/token.
However I keep receiving this error:
{
"error": "unauthorized",
"error_description": "An Authentication object was not found in the SecurityContext"
}
I use postman extension to send post requests to that uri. I authenticate my request with my client id and secret. I pass redirect_uri (https://localhost), granty_type (authorization_code), code(the code returned from the previous authorization step). However I keep getting the error above.
I couldn't find much about battle.net online. There are other oauth related help articles but couldn't really find my way.
Wondering if you can help me with this easy stuff. I'm just wondering what I'm skipping here.
Here is the documentation:
https://dev.battle.net/docs/read/oauth
https://localhost is added in my mashery dev account's app settings.
Me again, I resolved this problem after trying almost every combination in the universe:)
Steps to apply:
Don't use the same authorization token for different access token trials, they are not valid
Always use https on every domain you test including localhost, you
redirect_uri must be https as well.
You must use the "basic authentication" in the header of your POST request while requesting the token from the authorization code you obtained from the previous step.
This is one of the most important ones: For requesting token, Pass redirect_uri, client key and secret as POST form parameters to the authenticated request. This is interesting because it's already an authenticated request; why would i need to pass my secret again? Anyways, that's how it works.
Here are the full text:
http://hakanu.net/oauth/2017/01/26/complete-guide-of-battle-net-oauth-api-and-login-button/
This is working prototype:
https://owmatch.me
Thanks.

Oauth2 server redirect URI

My question may seem silly, but I really do not understand - what the purpose of catching redirect_uri from request and compare it with URI specified in the clients table? Is it due to a security issue?
Pre-registering redirect URIs itself is a security measurement because the authorization requests in OAuth 2.0 are not signed. Attackers could phish the user in clicking a link that would result in an authorization request with a redirect_uri pointing to a site that they control.
Sending the redirect_uri in the request itself does not serve a security purpose but is just there to let the Authorization Sever know where the client wants to receive the authorization response in the case there are multiple redirect URIs registered for this particular Client.
The redirect_uri parameter is optional by spec anyhow. If there's only one registered, then the redirect_uri parameter may be omitted from the request. If multiple redirect URIs are registered and no redirect URI is provided in the request, the result is unspecified: the AS may pick the first, anyone or none of them.

Resources