* Add the allowed_email_domains and the allowed_groups on the auth_request endpoint + support standard wildcard char for validation with sub-domain and email-domain.
Signed-off-by: Valentin Pichard <github@w3st.fr>
* Fix provider data initialisation
* PKCE Support
Adds Code Challenge PKCE support (RFC-7636) and partial
Authorization Server Metadata (RFC-8414) for detecting PKCE support.
- Introduces new option `--force-code-challenge-method` to force a
specific code challenge method (either `S256` or `plain`) for instances
when the server has not implemented RFC-8414 in order to detect
PKCE support on the discovery document.
- In all other cases, if the PKCE support can be determined during discovery
then the `code_challenge_methods_supported` is used and S256 is always
preferred.
- The force command line argument is helpful with some providers like Azure
who supports PKCE but does not list it in their discovery document yet.
- Initial thought was given to just always attempt PKCE since according to spec
additional URL parameters should be dropped by servers which implemented
OAuth 2, however other projects found cases in the wild where this causes 500
errors by buggy implementations.
See: https://github.com/spring-projects/spring-security/pull/7804#issuecomment-578323810
- Due to the fact that the `code_verifier` must be saved between the redirect and
callback, sessions are now created when the redirect takes place with `Authenticated: false`.
The session will be recreated and marked as `Authenticated` on callback.
- Individual provider implementations can choose to include or ignore code_challenge
and code_verifier function parameters passed to them
Note: Technically speaking `plain` is not required to be implemented since
oauth2-proxy will always be able to handle S256 and servers MUST implement
S256 support.
> If the client is capable of using "S256", it MUST use "S256", as "S256"
> is Mandatory To Implement (MTI) on the server. Clients are permitted
> to use "plain" only if they cannot support "S256" for some technical
> reason and know via out-of-band configuration that the server supports
> "plain".
Ref: RFC-7636 Sec 4.2
oauth2-proxy will always use S256 unless the user explicitly forces `plain`.
Fixes#1361
* Address PR comments by moving pkce generation
* Make PKCE opt-in, move to using the Nonce generater for code verifier
* Make PKCE opt-in, move to using the Nonce generater for code verifier
* Encrypt CodeVerifier in CSRF Token instead of Session
- Update Dex for PKCE support
- Expose HTTPBin for further use cases
* Correct the tests
* Move code challenges into extra params
* Correct typo in code challenge method
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* Correct the extra space in docs
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* Address changelog and new line nits
* Add generated docs
Co-authored-by: Valentin Pichard <github@w3st.fr>
Co-authored-by: Joel Speed <joel.speed@hotmail.co.uk>
You must explicitly configure oauth2-proxy (alpha config only) with which parameters are allowed to pass through, and optionally provide an allow-list of valid values and/or regular expressions for each one. Note that this mechanism subsumes the functionality of the "prompt", "approval_prompt" and "acr_values" legacy configuration options, which must be converted to the equivalent YAML when running in alpha config mode.
* implementation draft
* add cfg options skip-au-when-missing && client-id-verification-claim; enhance the provider data verification logic for sake of the added options
* refactor configs, added logging and add additional claim verification
* simplify logic by just having one configuration similar to oidc-email-claim
* added internal oidc token verifier, so that aud check behavior can be managed with oauth2-proxy and is compatible with extra-jwt-issuers
* refactored verification to reduce complexity
* refactored verification to reduce complexity
* added docs
* adjust tests to support new OIDCAudienceClaim and OIDCExtraAudiences options
* extend unit tests and ensure that audience is set with the value of aud claim configuration
* revert filemodes and update docs
* update docs
* remove unneccesary logging, refactor audience existence check and added additional unit tests
* fix linting issues after rebase on origin/main
* cleanup: use new imports for migrated libraries after rebase on origin/main
* adapt mock in keycloak_oidc_test.go
* allow specifying multiple audience claims, fixed bug where jwt issuers client id was not the being considered and fixed bug where aud claims with multiple audiences has broken the whole validation
* fixed formatting issue
* do not pass the whole options struct to minimize complexity and dependency to the configuration structure
* added changelog entry
* update docs
Co-authored-by: Sofia Weiler <sofia.weiler@aoe.com>
Co-authored-by: Christian Zenker <christian.zenker@aoe.com>
Previously this was only done in the `EnrichSession` stage
which would've missed Bearer usages & `RefreshSession`
would've overriden the User to the Subject.
* Set and verify a nonce with OIDC
* Create a CSRF object to manage nonces & cookies
* Add missing generic cookie unit tests
* Add config flag to control OIDC SkipNonce
* Send hashed nonces in authentication requests
* Encrypt the CSRF cookie
* Add clarity to naming & add more helper methods
* Make CSRF an interface and keep underlying nonces private
* Add ReverseProxy scope to cookie tests
* Align to new 1.16 SameSite cookie default
* Perform SecretBytes conversion on CSRF cookie crypto
* Make state encoding signatures consistent
* Mock time in CSRF struct via Clock
* Improve InsecureSkipNonce docstring
* cleaned up source to make golangci-lint pass
* providers/azure_test.go: use build in POST constant
* options_test.go: do not export unnecessary variables
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
By setting this to "force", certain providers, like Google,
will interject an additional prompt on every new session. With other values,
like "auto", this prompt is not forced upon the user.
