You've got me confused as well.. haha
No I'm not reaching the lines using the policyEnforcer. The error occurs
earlier in the process.
Could you perhaps explain what you send in the postman request.
What is put in it the request is the following:
*requestHeaders.put("Authorization",
BasicAuthHelper.createHeader(Configuration.this.clientId, secret));*
with the clientId being: *backend-client* and the secret being:
*6ce718ad-2ab1-42ff-bf01-35a03eab3aee*
resulting in the header: *Authorization : Basic
YmFja2VuZC1jbGllbnQ6NmNlNzE4YWQtMmFiMS00MmZmLWJmMDEtMzVhMDNlYWIzYWVl*
Other than that I do not have any clues what is wrong.
The AT request is generated during startup of my backend server. So I do
not yet have any frontend rest calls containing a bearerToken comming in.
My assumption is that I can initialize the keycloakDeployment once for my
entire application and then use it for each call comming in. Am I correct?
My guess now is that this assumption is wrong.
/Richard
Op do 8 dec. 2016 om 13:05 schreef Pedro Igor <psilva(a)redhat.com>:
On 12/8/2016 7:06:44 AM, Richard van Duijn <rjvduijn(a)gmail.com>
wrote:
Hi Pedro,
Thank you for the reply.
Fist I'll answer your questions, then I'll clarify my setup a bit more.
Please find attached my realm config file as well.
- The realm name was a typo. In the meantime I've reconfigured my
realm to ensure the '.' char was not messing up. Turned out not to be the
case.
- I'm not able to retrieve an AT from keycloak for the backend-client
(which is set to bearer-only). With the given Postman request I just get
the 400 bad request error and accompanying message.
*Pedro Igor:* I was able to get an AT after importing your realm and
sending the same postman request. Now I'm confused :) The client is
backend-client, correct ?
- I've followed the getting started guid up to securing the jboss
servlet. I've stopped there as I wanted to use a keycloak distribution in
combination with a PlayFramework application (for which there is no adapter
available yet).
I've followed the steps from this
<
http://bandrzejczak.com/blog/2015/11/22/single-sign-on-with-keycloak-in-a...
post
to get the bearerToken approach working. Using the
*AdapterRSATokenVerifier* class I was able to verify the bearerToken
received from the javascript frontend. What I basically have is a filter
that intercepts the frontend requests, picks up the bearerToken and checks
it's validity. If valid the resource is accessible otherwise the user
receives an error.
The next step was to include policies in the setup. Setting up the adapter
for the playFramework was a bit difficult as there is no real documentation
on that subject, only example implementations like the ones for spring
security and jetty. But before getting to the complex logic I've added the
policy-enforcer: {} line in the keycloak.json config file for the
backend-client. This json is then loaded and used in
*KeycloakDeploymentBuilder.build(keycloakConfig)*. This is the point
where it fails, as the config contains the policy-enforcer line, the
PolicyEnforcer class is initialized, which in turn attempts to retrieve the
AT from keycloak.
Is there some flaw in my reasoning?
1. The javascript frontend authenticates itself using the keycloak.js
adapter. It adds the accessToken to the Authorization header for the
rest-client to pickup
2. The rest client (my backend-client) verifies the bearerToken using
the AdapterRSATokenVerifier
3. Then the rest client checks the authorization using the folliwing
lines of code:
*final PolicyEnforcer policyEnforcer =
keycloakDeployment.getPolicyEnforcer();BearerTokenPolicyEnforcer
bearerTokenPolicyEnforcer = new BearerTokenPolicyEnforcer(policyEnforcer);*
*final AuthorizationContext authorizationContext =
bearerTokenPolicyEnforcer.authorize(facade);*
*Pedro Igor:* It looks correct. Although it seems you are not even
reaching the line above where permissions are actually enforced. Besides,
make sure you have all bearer token validations in place based on other
adapters we have.
You are almost there. You just need to figure out why you can't obtain an
AT from the server even if using postman, curl, etc. I think that if you
solve this, you will get everything working (or hit some new issue after
this one :)).
Hope this clarifies it a bit. I've attached my realm configuration json
file. By the way I'm using keycloak 2.4.0-Final.
Many many thanks for your help!
If this approach is valid I'm hapy to contribute my code to the community
for others to work with.
/Richard
Op do 8 dec. 2016 om 01:13 schreef Pedro Igor <psilva(a)redhat.com>:
Hi Richard,
In your first message, it seems the token endpoint is
http://127.0.0.1:8080/auth/realms/local.development/protocol/openid-conne...
you are using a realm "local.development".
In your last message with the postman request, you are using a token
endpoint like this /auth/realms/development/protocol/openid-connect/token.
Where the realm is "development", the same you have used in keycloak.json.
Would that be a misconfiguration or just a typo ?
Besides, what happens when you send that postman request to the server ?
Are you able to get a AT ?
This is pretty much what the enforcer does during initialization, obtain a
AT before querying the Protection API for protected resources. And is what
your stack trace shows.
If you are not able to obtain a token using the postman request, it
probably means you have something wrong with your realm/client
configuration on the server.
Last question, are you able to run any of our authorization examples ? Or
even successfully follow our Getting Started guide ?
Thanks.
Pedro Igor
On 12/7/2016 12:05:10 PM, Richard van Duijn <rjvduijn(a)gmail.com> wrote:
Forgot to include the postman request.. here it is:
POST /auth/realms/development/protocol/openid-connect/token HTTP/1.1
Host: 127.0.0.1:8080
Authorization: Basic
YmFja2VuZC1jbGllbnQ6NmNlNzE4YWQtMmFiMS00MmZmLWJmMDEtMzVhMDNlYWIzYWVl
Cache-Control: no-cache
Content-Type: application/x-www-form-urlencoded
grant_type=client_credentials
/Richard
Op wo 7 dec. 2016 om 15:00 schreef Richard van Duijn <rjvduijn(a)gmail.com>:
Somehow I do not get any logs in keycloak server.log. I've attempted to
change the loglevel in standalone.xml to TRACE, but to no avail. Maybe you
can give me a pointer to which logger I should change to see the correct
logs show up.
Besides that I've done some debugging using Postman as well. Using the
following request I get the message:
{
"error": "invalid_client",
"error_description": "Bearer-only not allowed"
}
This is weird to me as the keycloak.json file states that I am connecting
to a bearer-only client.
Hope this helps to clarify it for you.
My keycloak.json configuration file looks like this:
{
"realm": "development",
"bearer-only": true,
"auth-server-url": "http://127.0.0.1:8080/auth",
"ssl-required": "external",
"resource": "backend-client",
"use-resource-role-mappings": true,
"credentials": {
"secret": "SECRETHERE"
},
"policy-enforcer": {}
}
Hope this helps to clarify some of your questions.
/Richard
Op wo 7 dec. 2016 om 12:47 schreef Pedro Igor <psilva(a)redhat.com>:
Do you get anything in server logs ? It may be related with invalid client
credentials.
On 12/6/2016 12:41:38 PM, Richard van Duijn <rjvduijn(a)gmail.com> wrote:
I'm creating a POC application using playframework and angular. The
frontend will be protected using the keycloak javascript adapter and the
backend rest services will be a bearer-only application.
Without the policies turned on in the keycloak.json everything goes well.
But when I turn the policies by adding "policy-enforcer": { } on for the
rest services, I get an 400 Bad Request response from the Keycloak server
during initialization.
After some debugging I noticed it had to do with the initialization of the
PolicyEnforcer which attempts to call the following server keycloak
endpoint:
http://127.0.0.1:8080/auth/realms/local.development/protocol/openid-conne...
Below you will find the stacktrace and request and response objects.
Hope someone can point me in the right direction. For instance how to
configure keycloak logging to get some more details on what the reason for
the 400 bad request is.
Many many thanks!
/Richard
*Stacktrace*:
at
org.keycloak.authorization.client.util.HttpMethod.execute(HttpMethod.java:92)
at
org.keycloak.authorization.client.util.HttpMethodResponse$2.execute(HttpMethodResponse.java:48)
at
org.keycloak.authorization.client.AuthzClient.obtainAccessToken(AuthzClient.java:112)
at
org.keycloak.authorization.client.AuthzClient.protection(AuthzClient.java:91)
at
org.keycloak.adapters.authorization.PolicyEnforcer.(PolicyEnforcer.java:57)
at
org.keycloak.adapters.KeycloakDeploymentBuilder.internalBuild(KeycloakDeploymentBuilder.java:126)
at
org.keycloak.adapters.KeycloakDeploymentBuilder.build(KeycloakDeploymentBuilder.java:135)
at
security.KeycloakSecurityModule.configure(KeycloakSecurityModule.java:53)
at com.google.inject.AbstractModule.configure(AbstractModule.java:62)
... many google guice calls ...
at
play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:129)
at
play.core.server.DevServerStart$$anonfun$mainDev$1$$anon$1$$anonfun$get$1.apply(DevServerStart.scala:121)
*Request object*:
builder = {RequestBuilder@12557}
method = "POST"
charset = {UTF_8@12563} "UTF-8"
version = null
uri = {URI@12564} "
http://127.0.0.1:8080/auth/realms/local.development/protocol/openid-conne...
"
headergroup = {HeaderGroup@12565} "[Authorization: Basic
YmFja2VuZC1jbGllbnQ6NmNlNzE4YWQtMmFiMS00MmZmLWJmMDEtMzVhMDNlYWIzYWVl]"
entity = null
parameters = {LinkedList@12566} size = 1
0 = {BasicNameValuePair@12576} "grant_type=client_credentials"
config = null
*Response object*:
HTTP/1.1 400 Bad Request [Connection: keep-alive, X-Powered-By:
Undertow/1,
Server: WildFly/10, Content-Type: application/json, Content-Length: 72,
Date: Tue, 06 Dec 2016 12:24:28 GMT]
org.apache.http.conn.BasicManagedEntity@1f8d1780
response = {$Proxy16@12554} "HTTP/1.1 400 Bad Request [Connection:
keep-alive, X-Powered-By: Undertow/1, Server: WildFly/10, Content-Type:
application/json, Content-Length: 72, Date: Tue, 06 Dec 2016 12:24:28 GMT]
org.apache.http.conn.BasicManagedEntity@1f8d1780"
h = {CloseableHttpResponseProxy@12583}
original = {BasicHttpResponse@12584} "HTTP/1.1 400 Bad Request
[Connection: keep-alive, X-Powered-By: Undertow/1, Server: WildFly/10,
Content-Type: application/json, Content-Length: 72, Date: Tue, 06 Dec 2016
12:24:28 GMT] org.apache.http.conn.BasicManagedEntity@1f8d1780"
statusline = {BasicStatusLine@12556} "HTTP/1.1 400 Bad Request"
ver = {HttpVersion@12586} "HTTP/1.1"
code = 400
reasonPhrase = "Bad Request"
entity = {BasicManagedEntity@12555}
reasonCatalog = {EnglishReasonPhraseCatalog@12588}
locale = {Locale@12589} "en_US"
headergroup = {HeaderGroup@12590} "[Connection: keep-alive,
X-Powered-By: Undertow/1, Server: WildFly/10, Content-Type:
application/json, Content-Length: 72, Date: Tue, 06 Dec 2016 12:24:28
GMT]"
params = {ClientParamsStack@12591}
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