Proof-of-concept implementation of a potential new Supervisor feature
which allows arbitrary upstream ID token claims to be mapped into a
new top-level claim in the ID tokens issued by the Supervisor.
This commit is a WIP commit because it doesn't include many tests
for the new feature.
Co-authored-by: Ryan Richard <richardry@vmware.com>
Co-authored-by: Benjamin A. Petersen <ben@benjaminapetersen.me>
Also fix some tests that were broken by bumping golang and dependencies
in the previous commits.
Note that in addition to changes made to satisfy the linter which do not
impact the behavior of the code, this commit also adds ReadHeaderTimeout
to all usages of http.Server to satisfy the linter (and because it
seemed like a good suggestion).
- For backwards compatibility with older Pinniped CLIs, the pinniped-cli
client does not need to request the username or groups scopes for them
to be granted. For dynamic clients, the usual OAuth2 rules apply:
the client must be allowed to request the scopes according to its
configuration, and the client must actually request the scopes in the
authorization request.
- If the username scope was not granted, then there will be no username
in the ID token, and the cluster-scoped token exchange will fail since
there would be no username in the resulting cluster-scoped ID token.
- The OIDC well-known discovery endpoint lists the username and groups
scopes in the scopes_supported list, and lists the username and groups
claims in the claims_supported list.
- Add username and groups scopes to the default list of scopes
put into kubeconfig files by "pinniped get kubeconfig" CLI command,
and the default list of scopes used by "pinniped login oidc" when
no list of scopes is specified in the kubeconfig file
- The warning header about group memberships changing during upstream
refresh will only be sent to the pinniped-cli client, since it is
only intended for kubectl and it could leak the username to the
client (which may not have the username scope granted) through the
warning message text.
- Add the user's username to the session storage as a new field, so that
during upstream refresh we can compare the original username from the
initial authorization to the refreshed username, even in the case when
the username scope was not granted (and therefore the username is not
stored in the ID token claims of the session storage)
- Bump the Supervisor session storage format version from 2 to 3
due to the username field being added to the session struct
- Extract commonly used string constants related to OIDC flows to api
package.
- Change some import names to make them consistent:
- Always import github.com/coreos/go-oidc/v3/oidc as "coreosoidc"
- Always import go.pinniped.dev/generated/latest/apis/supervisor/oidc
as "oidcapi"
- Always import go.pinniped.dev/internal/oidc as "oidc"
- Enhance the token exchange to check that the same client is used
compared to the client used during the original authorization and
token requests, and also check that the client has the token-exchange
grant type allowed in its configuration.
- Reduce the minimum required bcrypt cost for OIDCClient secrets
because 15 is too slow for real-life use, especially considering
that every login and every refresh flow will require two client auths.
- In unit tests, use bcrypt hashes with a cost of 4, because bcrypt
slows down by 13x when run with the race detector, and we run our
tests with the race detector enabled, causing the tests to be
unacceptably slow. The production code uses a higher minimum cost.
- Centralize all pre-computed bcrypt hashes used by unit tests to a
single place. Also extract some other useful test helpers for
unit tests related to OIDCClients.
- Add tons of unit tests for the token endpoint related to dynamic
clients for authcode exchanges, token exchanges, and refreshes.
This is only a first commit towards making this feature work.
- Hook dynamic clients into fosite by returning them from the storage
interface (after finding and validating them)
- In the auth endpoint, prevent the use of the username and password
headers for dynamic clients to force them to use the browser-based
login flows for all the upstream types
- Add happy path integration tests in supervisor_login_test.go
- Add lots of comments (and some small refactors) in
supervisor_login_test.go to make it much easier to understand
- Add lots of unit tests for the auth endpoint regarding dynamic clients
(more unit tests to be added for other endpoints in follow-up commits)
- Enhance crud.go to make lifetime=0 mean never garbage collect,
since we want client secret storage Secrets to last forever
- Move the OIDCClient validation code to a package where it can be
shared between the controller and the fosite storage interface
- Make shared test helpers for tests that need to create OIDC client
secret storage Secrets
- Create a public const for "pinniped-cli" now that we are using that
string in several places in the production code
- Two of the linters changed their names
- Updated code and nolint comments to make all linters pass with 1.44.2
- Added a new hack/install-linter.sh script to help developers install
the expected version of the linter for local development
When the LDAP and AD IDP watcher controllers encountered an update error
while trying to update the status conditions of the IDP resources, then
they would drop the computed desired new value of the condition on the
ground. Next time the controller ran it would not try to update the
condition again because it wants to use the cached settings and had
already forgotten the desired new value of the condition computed during
the previous run of the controller. This would leave the outdated value
of the condition on the IDP resource.
This bug would manifest in CI as random failures in which the expected
condition message and the actual condition message would refer to
different versions numbers of the bind secret. The actual condition
message would refer to an older version of the bind secret because the
update failed and then the new desired message got dropped on the
ground.
This commit changes the in-memory caching strategy to also cache the
computed condition messages, allowing the conditions to be updated
on the IDP resource during future calls to Sync() in the case of a
failed update.
- Make everything private
- Drop unused AuthTime field
- Use %q format string instead of "%s"
- Only rely on GetRawAttributeValues in AttributeUnchangedSinceLogin
Signed-off-by: Monis Khan <mok@vmware.com>
Highlights from this dep bump:
1. Made a copy of the v0.4.0 github.com/go-logr/stdr implementation
for use in tests. We must bump this dep as Kube code uses a
newer version now. We would have to rewrite hundreds of test log
assertions without this copy.
2. Use github.com/felixge/httpsnoop to undo the changes made by
ory/fosite#636 for CLI based login flows. This is required for
backwards compatibility with older versions of our CLI. A
separate change after this will update the CLI to be more
flexible (it is purposefully not part of this change to confirm
that we did not break anything). For all browser login flows, we
now redirect using http.StatusSeeOther instead of http.StatusFound.
3. Drop plog.RemoveKlogGlobalFlags as klog no longer mutates global
process flags
4. Only bump github.com/ory/x to v0.0.297 instead of the latest
v0.0.321 because v0.0.298+ pulls in a newer version of
go.opentelemetry.io/otel/semconv which breaks k8s.io/apiserver.
We should update k8s.io/apiserver to use the newer code.
5. Migrate all code from k8s.io/apimachinery/pkg/util/clock to
k8s.io/utils/clock and k8s.io/utils/clock/testing
6. Delete testutil.NewDeleteOptionsRecorder and migrate to the new
kubetesting.NewDeleteActionWithOptions
7. Updated ExpectedAuthorizeCodeSessionJSONFromFuzzing caused by
fosite's new rotated_secrets OAuth client field. This new field
is currently not relevant to us as we have no private clients.
Signed-off-by: Monis Khan <mok@vmware.com>
This change updates the TLS config used by all pinniped components.
There are no configuration knobs associated with this change. Thus
this change tightens our static defaults.
There are four TLS config levels:
1. Secure (TLS 1.3 only)
2. Default (TLS 1.2+ best ciphers that are well supported)
3. Default LDAP (TLS 1.2+ with less good ciphers)
4. Legacy (currently unused, TLS 1.2+ with all non-broken ciphers)
Highlights per component:
1. pinniped CLI
- uses "secure" config against KAS
- uses "default" for all other connections
2. concierge
- uses "secure" config as an aggregated API server
- uses "default" config as a impersonation proxy API server
- uses "secure" config against KAS
- uses "default" config for JWT authenticater (mostly, see code)
- no changes to webhook authenticater (see code)
3. supervisor
- uses "default" config as a server
- uses "secure" config against KAS
- uses "default" config against OIDC IDPs
- uses "default LDAP" config against LDAP IDPs
Signed-off-by: Monis Khan <mok@vmware.com>
- Discover the revocation endpoint of the upstream provider in
oidc_upstream_watcher.go and save it into the cache for future use
by the garbage collector controller
- Adds RevokeRefreshToken to UpstreamOIDCIdentityProviderI
- Implements the production version of RevokeRefreshToken
- Implements test doubles for RevokeRefreshToken for future use in
garbage collector's unit tests
- Prefactors the crud and session storage types for future use in the
garbage collector controller
- See remaining TODOs in garbage_collector.go
- Requiring refresh tokens to be returned from upstream OIDC idps
- Storing refresh tokens (for oidc) and idp information (for all idps) in custom session data during authentication
- Don't pass access=offline all the time
- Change list of attributeParsingOverrides to a map
- Add unit test for sAMAccountName as group name without the override
- Change some comments in the the type definition.
- Add `AllowPasswordGrant` boolean field to OIDCIdentityProvider's spec
- The oidc upstream watcher controller copies the value of
`AllowPasswordGrant` into the configuration of the cached provider
- Add password grant to the UpstreamOIDCIdentityProviderI interface
which is implemented by the cached provider instance for use in the
authorization endpoint
- Enhance the IDP discovery endpoint to return the supported "flows"
for each IDP ("cli_password" and/or "browser_authcode")
- Enhance `pinniped get kubeconfig` to help the user choose the desired
flow for the selected IDP, and to write the flow into the resulting
kubeconfg
- Enhance `pinniped login oidc` to have a flow flag to tell it which
client-side flow it should use for auth (CLI-based or browser-based)
- In the Dex config, allow the resource owner password grant, which Dex
implements to also return ID tokens, for use in integration tests
- Enhance the authorize endpoint to perform password grant when
requested by the incoming headers. This commit does not include unit
tests for the enhancements to the authorize endpoint, which will come
in the next commit
- Extract some shared helpers from the callback endpoint to share the
code with the authorize endpoint
- Add new integration tests
