Vx.x.x (Pre-release)

Release Highlights

Important Notes

Breaking Changes

Changes since v7.2.1

V7.2.1

Release Highlights

This release contains a number of bug and security fixes, but has no feature additions.

Important Notes

N/A

Breaking Changes

N/A

Changes since v7.2.0

#1247 Use upn claim consistently in ADFSProvider (@NickMeves)
#1447 Fix docker build/push issues found during last release (@JoelSpeed)
#1433 Let authentication fail when session validation fails (@stippi2)
#1445 Fix docker container multi arch build issue by passing GOARCH details to make build (@jkandasa)
#1444 Update LinkedIn provider validate URL (@jkandasa)
#1471 Update alpine to 3.15 (@AlexanderBabel)
#1479 Update to Go 1.17 (@polarctos)

V7.2.0

Release Highlights

LinkedIn provider updated to support the new v2 API
Introduce --force-json-errors to allow OAuth2 Proxy to protect JSON APIs and disable authentication redirection
Add URL rewrite capabilities to the upstream proxy
New ADFS provider integration
New Keycloak OIDC provider integration
Introduced Multiarch Docker images on the standard image tags

Important Notes

#1086 The extra validation to protect invalid session deserialization from v6.0.0 (only) has been removed to improve performance. If you are on v6.0.0, either upgrade to a version before this first and allow legacy sessions to expire gracefully or change your cookie-secret value and force all sessions to reauthenticate.
#1210 A new keycloak-oidc provider has been added with support for role based authentication. The existing keycloak auth provider will eventually be deprecated and removed. Please switch to the new provider keycloak-oidc.

Breaking Changes

#1239 GitLab groups sent in the X-Forwarded-Groups header to the upstream server will no longer be prefixed with group:

Changes since v7.1.3

#1391 Improve build times by sharing cache and allowing platform selection (@JoelSpeed)
#1404 Improve error message when no cookie is found (@JoelSpeed)
#1315 linkedin: Update provider to v2 (@wuurrd)
#1348 Using the native httputil proxy code for websockets rather than yhat/wsutil to properly handle HTTP-level failures (@thetrime)
#1379 Fix the manual sign in with --htpasswd-user-group switch (@janrotter)
#1375 Added --force-json-errors flag (@bancek)
#1337 Changing user field type to text when using htpasswd (@pburgisser)
#1239 Base GitLab provider implementation on OIDCProvider (@NickMeves)
#1276 Update crypto and switched to new github.com/golang-jwt/jwt (@JVecsei)
#1264 Update go-oidc to v3 (@NickMeves)
#1233 Extend email-domain validation with sub-domain capability (@morarucostel)
#1060 Implement RewriteTarget to allow requests to be rewritten before proxying to upstream servers (@JoelSpeed)
#1086 Refresh sessions before token expiration if configured (@NickMeves)
#1226 Move app redirection logic to its own package (@JoelSpeed)
#1128 Use gorilla mux for OAuth Proxy routing (@JoelSpeed)
#1238 Added ADFS provider (@samirachoadi)
#1227 Fix Refresh Session not working for multiple cookies (@rishi1111)
#1063 Add Redis lock feature to lock persistent sessions (@Bibob7)
#1108 Add alternative ways to generate cookie secrets to docs (@JoelSpeed)
#1142 Add pagewriter to upstream proxy (@JoelSpeed)
#1181 Fix incorrect cfg name in show-debug-on-error flag (@iTaybb)
#1207 Fix URI fragment handling on sign-in page, regression introduced in 7.1.0 (@tarvip)
#1210 New Keycloak OIDC Provider (@pb82)
#1244 Update Alpine image version to 3.14 (@ahovgaard)
#1317 Fix incorrect </form> tag on the sing_in page when not using a custom template (@jord1e)
#1330 Allow specifying URL as input for custom sign in logo (@MaikuMori)
#1357 Fix unsafe access to session variable (@harzallah)
#997 Allow passing the raw url path when proxying upstream requests - e.g. /%2F/ (@FStelzer)
#1147 Multiarch support for docker image (@goshlanguage)
#1296 Fixed panic when connecting to Redis with TLS (@mstrzele)
#1403 Improve TLS handling for Redis to support non-standalone mode with TLS (@wadahiro)

V7.1.3

Release Highlights

Fixed typos in the metrics server TLS config names

Important Notes

#967 --insecure-oidc-skip-nonce is currently true by default in case any existing OIDC Identity Providers don't support it. The default will switch to false in a future version.

Breaking Changes

Changes since v7.1.2

#1168 Fix incorrect cfg name in Metrics TLS flags (@NickMeves)
#967 Set & verify a nonce with OIDC providers (@NickMeves)
#1136 Add clock package for better time mocking in tests (@NickMeves)
#947 Multiple provider ingestion and validation in alpha options (first stage: #926) (@yanasega)

V7.1.2

Release Highlights

Metrics bind address initialisation was broken in config files

Important Notes

N/A

Breaking Changes

N/A

Changes since v7.1.1

#1129 Rewrite OpenRedirect tests in ginkgo (@JoelSpeed)
#1127 Remove unused fields from OAuthProxy (@JoelSpeed)
#1141 Fix metrics server bind address initialization (@oliver006)

V7.1.1

Release Highlights

The metrics server could not be started in v7.1.0, this is now fixed.

Important Notes

N/A

Breaking Changes

N/A

Changes since v7.1.0

#1133 Metrics server should be constructed with secure bind address for TLS (@JoelSpeed)

V7.1.0

Release Highlights

New improved design for sign in and error pages based on bulma framework
Refactored templates loading
- robots.txt, sign_in.html and error.html can now be provided individually in --custom-templates-dir
- If any of the above are not provided, defaults are used
- Defaults templates be found in pkg/app/pagewriter
Introduction of basic prometheus metrics
Introduction of Traefik based local testing/example environment
Support for request IDs to allow request co-ordination of log lines

Important Notes

GHSA-652x-m2gr-hppm GitLab group authorization stopped working in v7.0.0, the functionality has now been restored, please see the linked advisory for details
#1103 Upstream request signatures via --signature-key is deprecated. Support will be removed completely in v8.0.0.
1087 The default logging templates have been updated to include {{.RequestID}}
#1117 The --gcp-healthchecks option is now deprecated. It will be removed in a future release.
- To migrate, you can change your application health checks for OAuth2 Proxy to point to the --ping-path value.
- You can also migrate the user agent based health check using the --ping-user-agent option. Set it to GoogleHC/1.0 to allow health checks on the path / from the Google health checker.

Breaking Changes

N/A

Changes since v7.0.1

GHSA-652x-m2gr-hppm --gitlab-group GitLab Group Authorization config flag stopped working in v7.0.0 (@NickMeves, @papey)
#1113 Panic with GitLab project repository auth (@piersharding)
#1116 Reinstate preferEmailToUser behaviour for basic auth sessions (@JoelSpeed)
#1115 Fix upstream proxy appending ? to requests (@JoelSpeed)
#1117 Deprecate GCP HealthCheck option (@JoelSpeed)
#1104 Allow custom robots text pages (@JoelSpeed)
#1045 Ensure redirect URI always has a scheme (@JoelSpeed)
#1103 Deprecate upstream request signatures (@NickMeves)
#1087 Support Request ID in logging (@NickMeves)
#914 Extract email from id_token for azure provider when oidc is configured (@weinong)
#1047 Refactor HTTP Server and add ServerGroup to handle graceful shutdown of multiple servers (@JoelSpeed)
#1070 Refactor logging middleware to middleware package (@NickMeves)
#1064 Add support for setting groups on session when using basic auth (@stefansedich)
#1056 Add option for custom logos on the sign in page (@JoelSpeed)
#1054 Update to Go 1.16 (@JoelSpeed)
#1052 Update golangci-lint to latest version (v1.36.0) (@JoelSpeed)
#1043 Refactor Sign In Page rendering and capture all page rendering code in pagewriter package (@JoelSpeed)
#1029 Refactor error page rendering and allow debug messages on error (@JoelSpeed)
#1028 Refactor templates, update theme and provide styled error pages (@JoelSpeed)
#1039 Ensure errors in tests are logged to the GinkgoWriter (@JoelSpeed)
#980 Add Prometheus metrics endpoint (@neuralsandwich)
#1023 Update docs on Traefik ForwardAuth support without the use of Traefik 'errors' middleware (@pcneo83)
#1091 Add an example with Traefik (configuration without Traefik 'errors' middleware) (@fcollonval)

V7.0.1

Release Highlights

Fixed a bug that meant that flag ordering mattered
Fixed a bug where response headers for groups were not being flattened

Important Notes

N/A

Breaking Changes

N/A

Changes since v7.0.0

#1020 Flatten array-based response headers (@NickMeves)
#1026 Ensure config flags get parsed correctly when other flags precede them (@JoelSpeed)

V7.0.0

Release Highlights

Major internal improvements to provider interfaces
Added group authorization support
Improved support for external auth for Traefik
Introduced alpha configuration format to allow users to trial new configuration format and alpha features
GitLab provider now supports restricting to members of a project
Keycloak provider now supports restricting users to members of a set of groups
(Alpha) Flexible header configuration allowing user defined mapping of session claims to header values

Important Notes

GHSA-4mf2-f3wh-gvf2 The whitelist domain feature has been updated to fix a vulnerability that was identified, please see the linked advisory for details
#964 Redirect URL generation will attempt secondary strategies in the priority chain if any fail the IsValidRedirect security check. Previously any failures fell back to /.
#953 Keycloak will now use --profile-url if set for the userinfo endpoint instead of --validate-url. --validate-url will still work for backwards compatibility.
#957 To use X-Forwarded-{Proto,Host,Uri} on redirect detection, --reverse-proxy must be true.
#936 --user-id-claim option is deprecated and replaced by --oidc-email-claim
#630 Gitlab projects needs a Gitlab application with the extra read_api enabled
#849 /oauth2/auth allowed_groups querystring parameter can be paired with the allowed-groups configuration option.
- The allowed_groups querystring parameter can specify multiple comma delimited groups.
- In this scenario, the user must have a group (from their multiple groups) present in both lists to not get a 401 or 403 response code.
- Example:
  - OAuth2-Proxy globally sets the allowed_groups as engineering.
  - An application using Kubernetes ingress uses the /oauth2/auth endpoint with allowed_groups querystring set to backend.
  - A user must have a session with the groups ["engineering", "backend"] to pass authorization.
  - Another user with the groups ["engineering", "frontend"] would fail the querystring authorization portion.
#905 Existing sessions from v6.0.0 or earlier are no longer valid. They will trigger a reauthentication.
#826 skip-auth-strip-headers now applies to all requests, not just those where authentication would be skipped.
#797 The behavior of the Google provider Groups restriction changes with this
- Either --google-group or the new --allowed-group will work for Google now (--google-group will be used if both are set)
- Group membership lists will be passed to the backend with the X-Forwarded-Groups header
- If you change the list of allowed groups, existing sessions that now don't have a valid group will be logged out immediately.
  - Previously, group membership was only checked on session creation and refresh.
#789 --skip-auth-route is (almost) backwards compatible with --skip-auth-regex
- We are marking --skip-auth-regex as DEPRECATED and will remove it in the next major version.
- If your regex contains an = and you want it for all methods, you will need to add a leading = (this is the area where --skip-auth-regex doesn't port perfectly)
#575 Sessions from v5.1.1 or earlier will no longer validate since they were not signed with SHA1.
- Sessions from v6.0.0 or later had a graceful conversion to SHA256 that resulted in no reauthentication
- Upgrading from v5.1.1 or earlier will result in a reauthentication
#616 Ensure you have configured oauth2-proxy to use the groups scope.
- The user may be logged out initially as they may not currently have the groups claim however after going back through login process wil be authenticated.
#839 Enables complex data structures for group claim entries, which are output as Json by default.

Breaking Changes

#964 --reverse-proxy must be true to trust X-Forwarded-* headers as canonical. These are used throughout the application in redirect URLs, cookie domains and host logging logic. These are the headers:
- X-Forwarded-Proto instead of req.URL.Scheme
- X-Forwarded-Host instead of req.Host
- X-Forwarded-Uri instead of req.URL.RequestURI()
#953 In config files & envvar configs, keycloak_group is now the plural keycloak_groups. Flag configs are still --keycloak-group but it can be passed multiple times.
#911 Specifying a non-existent provider will cause OAuth2-Proxy to fail on startup instead of defaulting to "google".
#797 Security changes to Google provider group authorization flow
- If you change the list of allowed groups, existing sessions that now don't have a valid group will be logged out immediately.
  - Previously, group membership was only checked on session creation and refresh.
#722 When a Redis session store is configured, OAuth2-Proxy will fail to start up unless connection and health checks to Redis pass
#800 Fix import path for v7. The import path has changed to support the go get installation.
- You can now go get github.com/oauth2-proxy/oauth2-proxy/v7 to get the latest v7 version of OAuth2 Proxy
- Import paths for package are now under v7, eg github.com/oauth2-proxy/oauth2-proxy/v7/pkg/<module>
#753 A bug in the Azure provider prevented it from properly passing the configured protected --resource via the login url. If this option was used in the past, behavior will change with this release as it will affect the tokens returned by Azure. In the past, the tokens were always for https://graph.microsoft.com (the default) and will now be for the configured resource (if it exists, otherwise it will run into errors)
#754 The Azure provider now has token refresh functionality implemented. This means that there won't be any redirects in the browser anymore when tokens expire, but instead a token refresh is initiated in the background, which leads to new tokens being returned in the cookies.
- Please note that --cookie-refresh must be 0 (the default) or equal to the token lifespan configured in Azure AD to make Azure token refresh reliable. Setting this value to 0 means that it relies on the provider implementation to decide if a refresh is required.

Changes since v6.1.1

GHSA-4mf2-f3wh-gvf2 Subdomain checking of whitelisted domains could allow unintended redirects (@NickMeves)
#1002 Use logger for logging refreshed session in azure and gitlab provider (@Bibob7)
#799 Use comma separated multiple values for header (@lilida)
#903 Add docs and generated reference for Alpha configuration (@JoelSpeed)
#995 Add Security Policy (@JoelSpeed)
#964 Require --reverse-proxy true to trust X-Forwareded-* type headers (@NickMeves)
#970 Fix joined cookie name for those containing underline in the suffix (@peppered)
#953 Migrate Keycloak to EnrichSession & support multiple groups for authorization (@NickMeves)
#957 Use X-Forwarded-{Proto,Host,Uri} on redirect as last resort (@linuxgemini)
#630 Add support for Gitlab project based authentication (@factorysh)
#907 Introduce alpha configuration option to enable testing of structured configuration (@JoelSpeed)
#938 Cleanup missed provider renaming refactor methods (@NickMeves)
#816 (via #936) Support non-list group claims (@loafoe)
#936 Refactor OIDC Provider and support groups from Profile URL (@NickMeves)
#869 Streamline provider interface method names and signatures (@NickMeves)
#849 Support group authorization on oauth2/auth endpoint via allowed_groups querystring (@NickMeves)
#925 Fix basic auth legacy header conversion (@JoelSpeed)
#916 Add AlphaOptions struct to prepare for alpha config loading (@JoelSpeed)
#923 Support TLS 1.3 (@aajisaka)
#918 Fix log header output (@JoelSpeed)
#911 Validate provider type on startup. (@arcivanov)
#906 Set up v6.1.x versioned documentation as default documentation (@JoelSpeed)
#905 Remove v5 legacy sessions support (@NickMeves)
#904 Set skip-auth-strip-headers to true by default (@NickMeves)
#826 Integrate new header injectors into project (@JoelSpeed)
#797 Create universal Authorization behavior across providers (@NickMeves)
#898 Migrate documentation to Docusaurus (@JoelSpeed)
#754 Azure token refresh (@codablock)
#850 Increase session fields in /oauth2/userinfo endpoint (@NickMeves)
#825 Fix code coverage reporting on GitHub actions(@JoelSpeed)
#796 Deprecate GetUserName & GetEmailAdress for EnrichSessionState (@NickMeves)
#705 Add generic Header injectors for upstream request and response headers (@JoelSpeed)
#753 Pass resource parameter in login url (@codablock)
#789 Add --skip-auth-route configuration option for METHOD=pathRegex based allowlists (@NickMeves)
#575 Stop accepting legacy SHA1 signed cookies (@NickMeves)
#722 Validate Redis configuration options at startup (@NickMeves)
#791 Remove GetPreferredUsername method from provider interface (@NickMeves)
#764 Document bcrypt encryption for htpasswd (and hide SHA) (@lentzi90)
#778 Use display-htpasswd-form flag
#616 Add support to ensure user belongs in required groups when using the OIDC provider (@stefansedich)
#800 Fix import path for v7 (@johejo)
#783 Update Go to 1.15 (@johejo)
#813 Fix build (@thiagocaiubi)
#801 Update go-redis/redis to v8 (@johejo)
#750 ci: Migrate to Github Actions (@shinebayar-g)
#829 Rename test directory to testdata (@johejo)
#819 Improve CI (@johejo)
#989 Adapt isAjax to support mimetype lists (@rassie)
#1013 Update alpine version to 3.13 (@nishanth-pinnapareddy)

v6.1.1

Release Highlights

Fixed a bug which prevented static upstreams from being used
Fixed a bug which prevented file based upstreams from being used
Ensure that X-Forwarded-Host is respected consistently

Important Notes

N/A

Breaking

N/A

Changes since v6.1.0

#729 Use X-Forwarded-Host consistently when set (@NickMeves)
#746 Fix conversion of static responses in upstreams (@JoelSpeed)

v6.1.0

Release Highlights

Redis session stores now support authenticated connections
Error logging can now be separated from info logging by directing error logs to stderr
Added --session-cookie-minimal flag which helps prevent large session cookies
Improvements to force-https behaviour
Allow requests to skip authentication based on their source IP

Important Notes

#632 There is backwards compatibility to sessions from v5
- Any unencrypted sessions from before v5 that only contained a Username & Email will trigger a reauthentication

Breaking Changes

Changes since v6.0.0

#742 Only log no cookie match if cookie domains specified (@JoelSpeed)
#562 Create generic Authorization Header constructor (@JoelSpeed)
#715 Ensure session times are not nil before printing them (@JoelSpeed)
#714 Support passwords with Redis session stores (@NickMeves)
#719 Add Gosec fixes to areas that are intermittently flagged on PRs (@NickMeves)
#718 Allow Logging to stdout with separate Error Log Channel
#690 Address GoSec security findings & remediate (@NickMeves)
#689 Fix finicky logging_handler_test from time drift (@NickMeves)
#700 Allow OIDC Bearer auth IDTokens to have empty email claim & profile URL (@NickMeves)
#699 Align persistence ginkgo tests with conventions (@NickMeves)
#696 Preserve query when building redirect
#561 Refactor provider URLs to package level vars (@JoelSpeed)
#682 Refactor persistent session store session ticket management (@NickMeves)
#688 Refactor session loading to make use of middleware pattern (@JoelSpeed)
#593 Integrate upstream package with OAuth2 Proxy (@JoelSpeed)
#687 Refactor HTPasswd Validator (@JoelSpeed)
#624 Allow stripping authentication headers from whitelisted requests with --skip-auth-strip-headers (@NickMeves)
#673 Add --session-cookie-minimal option to create session cookies with no tokens (@NickMeves)
#632 Reduce session size by encoding with MessagePack and using LZ4 compression (@NickMeves)
#675 Fix required ruby version and deprecated option for building docs (@mkontani)
#669 Reduce docker context to improve build times (@JoelSpeed)
#668 Use req.Host in --force-https when req.URL.Host is empty (@zucaritask)
#660 Use builder pattern to simplify requests to external endpoints (@JoelSpeed)
#591 Introduce upstream package with new reverse proxy implementation (@JoelSpeed)
#576 Separate Cookie validation out of main options validation (@JoelSpeed)
#656 Split long session cookies more precisely (@NickMeves)
#619 Improve Redirect to HTTPs behaviour (@JoelSpeed)
#654 Close client connections after each redis test (@JoelSpeed)
#542 Move SessionStore tests to independent package (@JoelSpeed)
#577 Move Cipher and Session Store initialisation out of Validation (@JoelSpeed)
#635 Support specifying alternative provider TLS trust source(s) (@k-wall)
#649 Resolve an issue where an empty healthcheck URL and ping-user-agent returns the healthcheck response (@jordancrawfordnz)
#662 Do not add Cache-Control header to response from auth only endpoint (@johejo)
#552 Implements --trusted-ip option to allow clients behind specified IPs or CIDR ranges to bypass authentication (@Izzette)
#733 dist.sh: remove go version from asset links (@syscll)

v6.0.0

Release Highlights

Migrated to an independent GitHub organisation
Added local test environment examples using docker-compose and kind
Error pages will now be rendered when upstream connections fail
Non-Existent options in config files will now return errors on startup
Sessions are now always encrypted, independent of configuration

Important Notes

(Security) Fix for open redirect vulnerability.
- More invalid redirects that lead to open-redirects were reported
- An extensive test suite has been added to prevent future regressions
#453 Responses to endpoints with a proxy prefix will now return headers for preventing browser caching.

Breaking Changes

#464 Migration from Pusher to independent org may have introduced breaking changes for your environment.
- See the changes listed below for PR #464 for full details
- Binaries renamed from oauth2_proxy to oauth2-proxy
#440 Switch Azure AD Graph API to Microsoft Graph API
- The Azure AD Graph API has been deprecated and is being replaced by the Microsoft Graph API. If your application relies on the access token being passed to it to access the Azure AD Graph API, you should migrate your application to use the Microsoft Graph API. Existing behaviour can be retained by setting -resource=https://graph.windows.net.
#484 Configuration loading has been replaced with Viper and PFlag
- Flags now require a -- prefix before the option
- Previously flags allowed either - or -- to prefix the option name
- Eg -provider must now be --provider
#487 Switch flags to StringSlice instead of StringArray
- Options that take multiple arguments now split strings on commas if present
- Eg --foo=a,b,c,d would result in the values a, b, c and d instead of a single a,b,c,d value as before
#535 Drop support for pre v3.1 cookies
- The encoding for session cookies was changed starting in v3.1.0, support for the previous encoding is now dropped
- If you are upgrading from a version earlier than this, please upgrade via a version between v3.1.0 and v5.1.1
#537 Drop Fallback to Email if User not set
- Previously, when a session was loaded, if the User was not set, it would be replaced by the Email. This behaviour was inconsistent as it required the session to be stored and then loaded to function properly.
- This behaviour has now been removed and the User field will remain empty if it was not set when the session was saved.
- In some scenarios X-Forwarded-User will now be empty. Use X-Forwarded-Email instead.
- In some scenarios, this may break setting Basic Auth on upstream or responses. Use --prefer-email-to-user to restore falling back to the Email in these cases.
#556 Remove unintentional auto-padding of secrets that were too short
- Previously, after cookie-secrets were opportunistically base64 decoded to raw bytes, they were padded to have a length divisible by 4.
- This led to wrong sized secrets being valid AES lengths of 16, 24, or 32 bytes. Or it led to confusing errors reporting an invalid length of 20 or 28 when the user input cookie-secret was not that length.
- Now we will only base64 decode a cookie-secret to raw bytes if it is 16, 24, or 32 bytes long. Otherwise, we will convert the direct cookie-secret to bytes without silent padding added.
#412/#559 Allow multiple cookie domains to be specified
- Multiple cookie domains may now be configured. The longest domain that matches will be used.
- The config options cookie_domain is now cookie_domains
- The environment variable OAUTH2_PROXY_COOKIE_DOMAIN is now OAUTH2_PROXY_COOKIE_DOMAINS
#414 Always encrypt sessions regardless of config
- Previously, sessions were encrypted only when certain options were configured. This lead to confusion and misconfiguration as it was not obvious when a session should be encrypted.
- Cookie Secrets must now be 16, 24 or 32 bytes.
- If you need to change your secret, this will force users to reauthenticate.
#548 Separate logging options out of main options structure
- Fixes an inconsistency in the --exclude-logging-paths option by renaming it to --exclude-logging-option.
- This flag may now be given multiple times as with other list options
- This flag also accepts comma separated values
#639 Change how gitlab-group is parsed on options
- Previously, the flag gitlab-group used comma seperated values, while the config option used space seperated values.
- This fixes the config value to use slices internally.
- The config option gitlab_group is now gitlab_groups
- The environment variable OAUTH2_PROXY_GITLAB_GROUP is now OAUTH2_PROXY_GITLAB_GROUPS

Changes since v5.1.1

GHSA-5m6c-jp6f-2vcv New OpenRedirect cases have been found (@JoelSpeed)
#639 Change how gitlab-group is parsed on options (@linuxgemini)
#615 Kubernetes example based on Kind cluster and Nginx ingress (@EvgeniGordeev)
#596 Validate Bearer IDTokens in headers with correct provider/extra JWT Verifier (@NickMeves)
#620 Add HealthCheck middleware (@JoelSpeed)
#597 Don't log invalid redirect if redirect is empty (@JoelSpeed)
#604 Add Keycloak local testing environment (@EvgeniGordeev)
#539 Refactor encryption ciphers and add AES-GCM support (@NickMeves)
#601 Ensure decrypted user/email are valid UTF8 (@JoelSpeed)
#560 Fallback to UserInfo is User ID claim not present (@JoelSpeed)
#598 acr_values no longer sent to IdP when empty (@ScottGuymer)
#548 Separate logging options out of main options structure (@JoelSpeed)
#567 Allow health/ping request to be identified via User-Agent (@chkohner)
#536 Improvements to Session State code (@JoelSpeed)
#573 Properly parse redis urls for cluster and sentinel connections (@amnay-mo)
#574 render error page on 502 proxy status (@amnay-mo)
#559 Rename cookie-domain config to cookie-domains (@JoelSpeed)
#569 Updated autocompletion for -- long options. (@Izzette)
#489 Move Options and Validation to separate packages (@JoelSpeed)
#556 Remove unintentional auto-padding of secrets that were too short (@NickMeves)
#538 Refactor sessions/utils.go functionality to other areas (@NickMeves)
#503 Implements --real-client-ip-header option to select the header from which to obtain a proxied client's IP (@Izzette)
#529 Add local test environments for testing changes and new features (@JoelSpeed)
#537 Drop Fallback to Email if User not set (@JoelSpeed)
#535 Drop support for pre v3.1 cookies (@JoelSpeed)
#533 Set up code coverage within Travis for Code Climate (@JoelSpeed)
#514 Add basic string functions to templates (@n-i-x)
#524 Sign cookies with SHA256 (@NickMeves)
#515 Drop configure script in favour of native Makefile env and checks (@JoelSpeed)
#519 Support context in providers (@johejo)
#487 Switch flags to PFlag to remove StringArray (@JoelSpeed)
#484 Replace configuration loading with Viper (@JoelSpeed)
#499 Add -user-id-claim to support generic claims in addition to email (@holyjak)
#486 Add new linters (@johejo)
#440 Switch Azure AD Graph API to Microsoft Graph API (@johejo)
#453 Prevent browser caching during auth flow (@johejo)
#467 Allow OIDC issuer verification to be skipped (@chkohner)
#481 Update Okta docs (@trevorbox)
#474 Always log hasMember request error object (@jbielick)
#468 Implement graceful shutdown and propagate request context (@johejo)
#464 Migrate to oauth2-proxy/oauth2-proxy (@JoelSpeed)
- Project renamed from pusher/oauth2_proxy to oauth2-proxy
- Move Go import path from github.com/pusher/oauth2_proxy to github.com/oauth2-proxy/oauth2-proxy
- Remove Pusher Cloud Team from CODEOWNERS
- Release images moved to quay.io/oauth2-proxy/oauth2-proxy
- Binaries renamed from oauth2_proxy to oauth2-proxy
#432 Update ruby dependencies for documentation (@theobarberbany)
#471 Add logging in case of invalid redirects (@gargath)
#462 Allow HTML in banner message (@eritikass)
#412 Allow multiple cookie domains to be specified (@edahlseng)
#413 Add -set-basic-auth param to set the Basic Authorization header for upstreams (@morarucostel)
#483 Warn users when session cookies are split (@JoelSpeed)
#488 Set-Basic-Auth should default to false (@JoelSpeed)
#494 Upstream websockets TLS certificate validation now depends on ssl-upstream-insecure-skip-verify (@yaroslavros)
#497 Restrict access using Github collaborators (@jsclayton)
#414 Always encrypt sessions regardless of config (@ti-mo)
#421 Allow logins by usernames even if they do not belong to the specified org and team or collaborators (@yyoshiki41)

v5.1.1

Release Highlights

N/A

Important Notes

(Security) Fix for open redirect vulnerability.
- A bad actor using encoded whitespace in redirect URIs can redirect a session to another domain

Breaking Changes

N/A

Changes since v5.1.0

GHSA-j7px-6hwj-hpjg Fix Open Redirect Vulnerability with encoded Whitespace characters (@JoelSpeed)

v5.1.0

Release Highlights

Bump to Go 1.14
Reduced number of Google API requests for group validation
Support for Redis Cluster
Support for overriding hosts in hosts file

Important Notes

[#335] The session expiry for the OIDC provider is now taken from the Token Response (expires_in) rather than from the id_token (exp)

Breaking Changes

N/A

Changes since v5.0.0

#450 Fix http.Cookie SameSite is not copied (@johejo)
#445 Expose acr_values to all providers (@holyjak)
#419 Support Go 1.14, upgrade dependencies, upgrade golangci-lint to 1.23.6 (@johejo)
#444 Support prompt in addition to approval-prompt (@holyjak)
#435 Fix issue with group validation calling google directory API on every HTTP request (@ericofusco)
#400 Add nsswitch.conf to Docker image to allow hosts file to work (@luketainton)
#385 Use the Authorization header instead of access_token for refreshing GitHub Provider sessions (@ibuclaw)
#372 Allow fallback to secondary verified email address in GitHub provider (@dmnemec)
#335 OIDC Provider support for empty id_tokens in the access token refresh response (@howzat)
#363 Extension of Redis Session Store to Support Redis Cluster (@yan-dblinf)
#353 Fix login page fragment handling after soft reload on Firefox (@ffdybuster)
#355 Add Client Secret File support for providers that rotate client secret via file system (@pasha-r)
#401 Give the option to pass email address in the Basic auth header instead of upstream usernames. (@Spindel)
#405 The /sign_in page now honors the rd query parameter, fixing the redirect after a successful authentication (@ti-mo)
#434 Give the option to prefer email address in the username header when using the -pass-user-headers option (@jordancrawfordnz)

v5.0.0

Release Highlights

Disabled CGO (binaries will work regardless og glibc/musl)
Allow whitelisted redirect ports
Nextcloud provider support added
DigitalOcean provider support added

Important Notes

(Security) Fix for open redirect vulnerability.. a bad actor using /\ in redirect URIs can redirect a session to another domain

Breaking Changes

#321 Add reverse proxy boolean flag to control whether headers like X-Real-Ip are accepted. This defaults to false. Usage behind a reverse proxy will require this flag to be set to avoid logging the reverse proxy IP address.

Changes since v4.1.0

#331 Add reverse proxy setting (@martin-css)
#365 Build with CGO=0 (@tomelliff)
#339 Add configuration for cookie 'SameSite' value. (@pgroudas)
#347 Update keycloak provider configuration documentation. (@sushiMix)
#325 dist.sh: use sha256sum (@syscll)
#179 Add Nextcloud provider (@Ramblurr)
#280 whitelisted redirect domains: add support for whitelisting specific ports or allowing wildcard ports (@kamaln7)
#351 Add DigitalOcean Auth provider (@kamaln7)

v4.1.0

Release Highlights

Added Keycloak provider
Build on Go 1.13
Upgrade Docker image to use Debian Buster
Added support for FreeBSD builds
Added new logo
Added support for GitHub teams

Important Notes

N/A

Breaking Changes

N/A

Changes since v4.0.0

#292 Added bash >= 4.0 dependency to configure script (@jmfrank63)
#227 Add Keycloak provider (@Ofinka)
#259 Redirect to HTTPS (@jmickey)
#273 Support Go 1.13 (@dio)
#275 docker: build from debian buster (@syscll)
#258 Add IDToken for Azure provider (@leyshon)
- This PR adds the IDToken into the session for the Azure provider allowing requests to a backend to be identified as a specific user. As a consequence, if you are using a cookie to store the session the cookie will now exceed the 4kb size limit and be split into multiple cookies. This can cause problems when using nginx as a proxy, resulting in no cookie being passed at all. Either increase the proxy_buffer_size in nginx or implement the redis session storage (see https://oauth2-proxy.github.io/oauth2-proxy/configuration#redis-storage)
#286 Requests.go updated with useful error messages (@biotom)
#274 Supports many github teams with api pagination support (@toshi-miura, @apratina)
#302 Rewrite dist script (@syscll)
#304 Add new Logo! 🎉 (@JoelSpeed)
#300 Added userinfo endpoint (@kbabuadze)
#309 Added support for custom CA when connecting to Redis cache (@lleszczu)
#248 Fix issue with X-Auth-Request-Redirect header being ignored (@webnard)
#314 Add redirect capability to sign_out (@costelmoraru)
#265 Add upstream with static response (@cgroschupp)
#317 Add build for FreeBSD (@fnkr)
#296 Allow to override provider's name for sign-in page (@ffdybuster)

v4.0.0

Release Highlights

Documentation is now on a microsite
Health check logging can now be disabled for quieter logs
Authorization Header JWTs can now be verified by the proxy to skip authentication for machine users
Sessions can now be stored in Redis. This reduces refresh failures and uses smaller cookies (Recommended for those using OIDC refreshing)
Logging overhaul allows customisable logging formats

Important Notes

This release includes a number of breaking changes that will require users to reconfigure their proxies. Please read the Breaking Changes below thoroughly.

Breaking Changes

#231 Rework GitLab provider
- This PR changes the configuration options for the GitLab provider to use a self-hosted instance. You now need to specify a -oidc-issuer-url rather than explicit -login-url, -redeem-url and -validate-url parameters.
#186 Make config consistent
- This PR changes configuration options so that all flags have a config counterpart of the same name but with underscores (_) in place of hyphens (-). This change affects the following flags:
- The --tls-key flag is now --tls-key-file to be consistent with existing file flags and the existing config and environment settings
- The --tls-cert flag is now --tls-cert-file to be consistent with existing file flags and the existing config and environment settings This change affects the following existing configuration options:
- The proxy-prefix option is now proxy_prefix. This PR changes environment variables so that all flags have an environment counterpart of the same name but capitalised, with underscores (_) in place of hyphens (-) and with the prefix OAUTH2_PROXY_. This change affects the following existing environment variables:
- The OAUTH2_SKIP_OIDC_DISCOVERY environment variable is now OAUTH2_PROXY_SKIP_OIDC_DISCOVERY.
- The OAUTH2_OIDC_JWKS_URL environment variable is now OAUTH2_PROXY_OIDC_JWKS_URL.
#146 Use full email address as User if the auth response did not contain a User field
- This change modifies the contents of the X-Forwarded-User header supplied by the proxy for users where the auth response from the IdP did not contain a username. In that case, this header used to only contain the local part of the user's email address (e.g. john.doe for john.doe@example.com) but now contains the user's full email address instead.
#170 Pre-built binary tarballs changed format
- The pre-built binary tarballs again match the format of the bitly repository, where the unpacked directory has the same name as the tarball and the binary is always named oauth2_proxy. This was done to restore compatibility with third-party automation recipes like https://github.com/jhoblitt/puppet-oauth2_proxy.

Changes since v3.2.0

#234 Added option -ssl-upstream-insecure-skip-validation to skip validation of upstream SSL certificates (@jansinger)
#224 Check Google group membership using hasMember to support nested groups and external users (@jpalpant)
#231 Add optional group membership and email domain checks to the GitLab provider (@Overv)
#226 Made setting of proxied headers deterministic based on configuration alone (@aeijdenberg)
#178 Add Silence Ping Logging and Exclude Logging Paths flags (@kskewes)
#209 Improve docker build caching of layers (@dekimsey)
#186 Make config consistent (@JoelSpeed)
#187 Move root packages to pkg folder (@JoelSpeed)
#65 Improvements to authenticate requests with a JWT bearer token in the Authorization header via the -skip-jwt-bearer-token options. (@brianv0)
- Additional verifiers can be configured via the -extra-jwt-issuers flag if the JWT issuers is either an OpenID provider or has a JWKS URL (e.g. https://example.com/.well-known/jwks.json).
#180 Minor refactor of core proxying path (@aeijdenberg).
#175 Bump go-oidc to v2.0.0 (@aeijdenberg).
- Includes fix for potential signature checking issue when OIDC discovery is skipped.
#155 Add RedisSessionStore implementation (@brianv0, @JoelSpeed)
- Implement flags to configure the redis session store
  - -session-store-type=redis Sets the store type to redis
  - -redis-connection-url Sets the Redis connection URL
  - -redis-use-sentinel=true Enables Redis Sentinel support
  - -redis-sentinel-master-name Sets the Sentinel master name, if sentinel is enabled
  - -redis-sentinel-connection-urls Defines the Redis Sentinel Connection URLs, if sentinel is enabled
- Introduces the concept of a session ticket. Tickets are composed of the cookie name, a session ID, and a secret.
- Redis Sessions are stored encrypted with a per-session secret
- Added tests for server based session stores
#168 Drop Go 1.11 support in Travis (@JoelSpeed)
#169 Update Alpine to 3.9 (@kskewes)
#148 Implement SessionStore interface within proxy (@JoelSpeed)
#147 Add SessionStore interfaces and initial implementation (@JoelSpeed)
- Allows for multiple different session storage implementations including client and server side
- Adds tests suite for interface to ensure consistency across implementations
- Refactor some configuration options (around cookies) into packages
#114, #154 Documentation is now available live at our docs website (@JoelSpeed, @icelynjennings)
#146 Use full email address as User if the auth response did not contain a User field (@gargath)
#144 Use GO 1.12 for ARM builds (@kskewes)
#142 ARM Docker USER fix (@kskewes)
#52 Logging Improvements (@MisterWil)
- Implement flags to configure file logging
  - -logging-filename Defines the filename to log to
  - -logging-max-size Defines the maximum
  - -logging-max-age Defines the maximum age of backups to retain
  - -logging-max-backups Defines the maximum number of rollover log files to retain
  - -logging-compress Defines if rollover log files should be compressed
  - -logging-local-time Defines if logging date and time should be local or UTC
- Implement two new flags to enable or disable specific logging types
  - -standard-logging Enables or disables standard (not request or auth) logging
  - -auth-logging Enables or disables auth logging
- Implement two new flags to customize the logging format
  - -standard-logging-format Sets the format for standard logging
  - -auth-logging-format Sets the format for auth logging
#111 Add option for telling where to find a login.gov JWT key file (@timothy-spencer)
#170 Restore binary tarball contents to be compatible with bitlys original tarballs (@zeha)
#185 Fix an unsupported protocol scheme error during token validation when using the Azure provider (@jonas)
#141 Check google group membership based on email address (@bchess)
- Google Group membership is additionally checked via email address, allowing users outside a GSuite domain to be authorized.
#195 Add -banner flag for overriding the banner line that is displayed (@steakunderscore)
#198 Switch from gometalinter to golangci-lint (@steakunderscore)
#159 Add option to skip the OIDC provider verified email check: --insecure-oidc-allow-unverified-email (@djfinlay)
#210 Update base image from Alpine 3.9 to 3.10 (@steakunderscore)
#201 Add Bitbucket as new OAuth2 provider, accepts email, team and repository permissions to determine authorization (@aledeganopix4d)
- Implement flags to enable Bitbucket authentication:
  - -bitbucket-repository Restrict authorization to users that can access this repository
  - -bitbucket-team Restrict authorization to users that are part of this Bitbucket team
#211 Switch from dep to go modules (@steakunderscore)
#145 Add support for OIDC UserInfo endpoint email verification (@rtluckie)

v3.2.0

Release highlights

Internal restructure of session state storage to use JSON rather than proprietary scheme
Added health check options for running on GCP behind a load balancer
Improved support for protecting websockets
Added provider for login.gov
Allow manual configuration of OIDC providers

Important notes

Dockerfile user is now non-root, this may break your existing deployment
In the OIDC provider, when no email is returned, the ID Token subject will be used instead of returning an error
GitHub user emails must now be primary and verified before authenticating

Changes since v3.1.0

#96 Check if email is verified on GitHub (@caarlos0)
#110 Added GCP healthcheck option (@timothy-spencer)
#112 Improve websocket support (@gyson)
#63 Use encoding/json for SessionState serialization (@yaegashi)
- Use JSON to encode session state to be stored in browser cookies
- Implement legacy decode function to support existing cookies generated by older versions
- Add detailed table driven tests in session_state_test.go
#120 Encrypting user/email from cookie (@costelmoraru)
#55 Added login.gov provider (@timothy-spencer)
#55 Added environment variables for all config options (@timothy-spencer)
#70 Fix handling of splitted cookies (@einfachchr)
#92 Merge websocket proxy feature from openshift/oauth-proxy (@butzist)
#57 Fall back to using OIDC Subject instead of Email (@aigarius)
#85 Use non-root user in docker images (@kskewes)
#68 forward X-Auth-Access-Token header (@davidholsgrove)
#41 Added option to manually specify OIDC endpoints instead of relying on discovery
#83 Add id_token refresh to Google provider (@leki75)
#10 fix redirect url param handling (@dt-rush)
#122 Expose -cookie-path as configuration parameter (@costelmoraru)
#124 Use Go 1.12 for testing and build environments (@syscll)

v3.1.0

Release highlights

Introduction of ARM releases and and general improvements to Docker builds
Improvements to OIDC provider allowing pass-through of ID Tokens
Multiple redirect domains can now be whitelisted
Streamed responses are now flushed periodically

Important notes

If you have been using #bitly/621 and have cookies larger than the 4kb limit, the cookie splitting pattern has changed and now uses _ in place of - when indexing cookies. This will force users to reauthenticate the first time they use v3.1.0.
Streamed responses will now be flushed every 1 second by default. Previously streamed responses were flushed only when the buffer was full. To retain the old behaviour set --flush-interval=0. See #23 for further details.

Changes since v3.0.0

#14 OIDC ID Token, Authorization Headers, Refreshing and Verification (@joelspeed)
- Implement pass-authorization-header and set-authorization-header flags
- Implement token refreshing in OIDC provider
- Split cookies larger than 4k limit into multiple cookies
- Implement token validation in OIDC provider
#15 WhitelistDomains (@joelspeed)
- Add --whitelist-domain flag to allow redirection to approved domains after OAuth flow
#21 Docker Improvement (@yaegashi)
- Move Docker base image from debian to alpine
- Install ca-certificates in docker image
#23 Flushed streaming responses
- Long-running upstream responses will get flushed every (1 second by default)
#24 Redirect fix (@agentgonzo)
- After a successful login, you will be redirected to your original URL rather than /
#35 arm and arm64 binary releases (@kskewes)
- Add armv6 and arm64 to Makefile release target
#37 cross build arm and arm64 docker images (@kskewes)

v3.0.0

Adoption of OAuth2_Proxy by Pusher. Project was hard forked and tidied however no logical changes have occurred since v2.2 as released by Bitly.

Changes since v2.2:

#7 Migration to Pusher (@joelspeed)
- Move automated build to debian base image
- Add Makefile
  - Update CI to run make test
  - Update Dockerfile to use make clean oauth2_proxy
  - Update VERSION parameter to be set by ldflags from Git Status
  - Remove lint and test scripts
- Remove Go v1.8.x from Travis CI testing
- Add CODEOWNERS file
- Add CONTRIBUTING guide
- Add Issue and Pull Request templates
- Add Dockerfile
- Fix fsnotify import
- Update README to reflect new repository ownership
- Update CI scripts to separate linting and testing
  - Now using gometalinter for linting
- Move Go import path from github.com/bitly/oauth2_proxy to github.com/pusher/oauth2_proxy
- Repository forked on 27/11/18
  - README updated to include note that this repository is forked
  - CHANGLOG created to track changes to repository from original fork

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