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Implements --trusted-ip option (#552)

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* Implements --ip-whitelist option

* Included IPWhitelist option to allow one-or-more selected CIDR ranges
  to bypass OAuth2 authentication.
* Adds IPWhitelist, a fast lookup table for multiple CIDR ranges.

* Renamed IPWhitelist ipCIDRSet

* Fixed unessesary pointer usage in ipCIDRSet

* Update CHANGELOG.md

* Update CHANGELOG.md

* Updated to not use err.Error() in printf statements

* Imrpoved language for --ip-whitelist descriptions.

* Improve IP whitelist options error messages

* Clarify options single-host normalization

* Wrote a book about ipCIDRSet

* Added comment to IsWhitelistedIP in oauthproxy.go

* Rewrite oauthproxy test case as table driven

* oops

* Support whitelisting by low-level remote address

* Added more test-cases, improved descriptions

* Move ip_cidr_set.go to pkg/ip/net_set.go

* Add more whitelist test use cases.

* Oops

* Use subtests for TestIPWhitelist

* Add minimal tests for ip.NetSet

* Use switch statment

* Renamed ip-whitelist to whitelist-ip

* Update documentation with a warning.

* Update pkg/apis/options/options.go

* Update CHANGELOG.md

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>

* Update pkg/ip/net_set_test.go

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>

* Update pkg/ip/net_set_test.go

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>

* Update pkg/ip/net_set_test.go

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>

* Apply suggestions from code review

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>

* fix fmt

* Move ParseIPNet into abstraction

* Add warning in case of --reverse-proxy

* Update pkg/validation/options_test.go

* Rename --whitelist-ip to --trusted-ip

* Update oauthproxy.go

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>

* fix

Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
This commit is contained in:
Isabelle COWAN-BERGMAN
2020-07-11 12:10:58 +02:00
committed by GitHub
parent e6903d8c1f
commit 64ae31b5a0
12 changed files with 541 additions and 17 deletions
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docs/configuration/configuration.md
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@ -129,6 +129,7 @@ An example [oauth2-proxy.cfg]({{ site.gitweb }}/contrib/oauth2-proxy.cfg.example
| `--validate-url` | string | Access token validation endpoint | |
| `--version` | n/a | print version string | |
| `--whitelist-domain` | string \| list | allowed domains for redirection after authentication. Prefix domain with a `.` to allow subdomains (eg `.example.com`) | |
| `--trusted-ip` | string \| list | list of IPs or CIDR ranges to allow to bypass authentication (may be given multiple times). When combined with `--reverse-proxy` and optionally `--real-client-ip-header` this will evaluate the trust of the IP stored in a HTTP header by a reverse proxy rather than the layer-3/4 remote address. WARNING: trusting IPs has inherent security flaws, especially when obtaining the IP address from an HTTP header (reverse-proxy mode). Use this option only if you understand the risks and how to manage them. | |
Note: when using the `whitelist-domain` option, any domain prefixed with a `.` will allow any subdomain of the specified domain as a valid redirect URL. By default, only empty ports are allowed. This translates to allowing the default port of the URL's protocol (80 for HTTP, 443 for HTTPS, etc.) since browsers omit them. To allow only a specific port, add it to the whitelisted domain: `example.com:8080`. To allow any port, use `*`: `example.com:*`.