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New flag "-ssl-upstream-insecure-skip-validation" (#234) 

* New flag "-ssl-upstream-insecure-skip-validation" to skip SSL validation for upstreams with self generated / invalid SSL certificates.

* Fix tests for modified NewReverseProxy method.

* Added change to the changelog.

* Remove duplicate entries from changelog.
This commit is contained in:
jansinger 2019-08-07 18:48:53 +02:00 committed by Dan Bond
parent d85660248c
commit 7134d22bcc
6 changed files with 33 additions and 23 deletions
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1
CHANGELOG.md
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@ -36,6 +36,7 @@
## Changes since v3.2.0 ## Changes since v3.2.0
- [#234](https://github.com/pusher/oauth2_proxy/pull/234) Added option `-ssl-upstream-insecure-skip-validation` to skip validation of upstream SSL certificates (@jansinger)
- [#224](https://github.com/pusher/oauth2_proxy/pull/224) Check Google group membership using hasMember to support nested groups and external users (@jpalpant) - [#224](https://github.com/pusher/oauth2_proxy/pull/224) Check Google group membership using hasMember to support nested groups and external users (@jpalpant)
- [#231](https://github.com/pusher/oauth2_proxy/pull/231) Add optional group membership and email domain checks to the GitLab provider (@Overv) - [#231](https://github.com/pusher/oauth2_proxy/pull/231) Add optional group membership and email domain checks to the GitLab provider (@Overv)
- [#178](https://github.com/pusher/outh2_proxy/pull/178) Add Silence Ping Logging and Exclude Logging Paths flags (@kskewes) - [#178](https://github.com/pusher/outh2_proxy/pull/178) Add Silence Ping Logging and Exclude Logging Paths flags (@kskewes)

3
docs/configuration/configuration.md
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@ -99,7 +99,8 @@ Usage of oauth2_proxy:
-skip-jwt-bearer-tokens: will skip requests that have verified JWT bearer tokens -skip-jwt-bearer-tokens: will skip requests that have verified JWT bearer tokens
-skip-oidc-discovery: bypass OIDC endpoint discovery. login-url, redeem-url and oidc-jwks-url must be configured in this case -skip-oidc-discovery: bypass OIDC endpoint discovery. login-url, redeem-url and oidc-jwks-url must be configured in this case
-skip-provider-button: will skip sign-in-page to directly reach the next step: oauth/start -skip-provider-button: will skip sign-in-page to directly reach the next step: oauth/start
-ssl-insecure-skip-verify: skip validation of certificates presented when using HTTPS -ssl-insecure-skip-verify: skip validation of certificates presented when using HTTPS providers
-ssl-upstream-insecure-skip-verify: skip validation of certificates presented when using HTTPS upstreams
-standard-logging: Log standard runtime information (default true) -standard-logging: Log standard runtime information (default true)
-standard-logging-format string: Template for standard log lines (see "Logging Configuration" paragraph below) -standard-logging-format string: Template for standard log lines (see "Logging Configuration" paragraph below)
-tls-cert-file string: path to certificate file -tls-cert-file string: path to certificate file

3
main.go
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@ -47,7 +47,8 @@ func main() {
flagSet.Var(&skipAuthRegex, "skip-auth-regex", "bypass authentication for requests path's that match (may be given multiple times)") flagSet.Var(&skipAuthRegex, "skip-auth-regex", "bypass authentication for requests path's that match (may be given multiple times)")
flagSet.Bool("skip-provider-button", false, "will skip sign-in-page to directly reach the next step: oauth/start") flagSet.Bool("skip-provider-button", false, "will skip sign-in-page to directly reach the next step: oauth/start")
flagSet.Bool("skip-auth-preflight", false, "will skip authentication for OPTIONS requests") flagSet.Bool("skip-auth-preflight", false, "will skip authentication for OPTIONS requests")
flagSet.Bool("ssl-insecure-skip-verify", false, "skip validation of certificates presented when using HTTPS") flagSet.Bool("ssl-insecure-skip-verify", false, "skip validation of certificates presented when using HTTPS providers")
flagSet.Bool("ssl-upstream-insecure-skip-verify", false, "skip validation of certificates presented when using HTTPS upstreams")
flagSet.Duration("flush-interval", time.Duration(1)*time.Second, "period between response flushing when streaming responses") flagSet.Duration("flush-interval", time.Duration(1)*time.Second, "period between response flushing when streaming responses")
flagSet.Bool("skip-jwt-bearer-tokens", false, "will skip requests that have verified JWT bearer tokens (default false)") flagSet.Bool("skip-jwt-bearer-tokens", false, "will skip requests that have verified JWT bearer tokens (default false)")
flagSet.Var(&jwtIssuers, "extra-jwt-issuers", "if skip-jwt-bearer-tokens is set, a list of extra JWT issuer=audience pairs (where the issuer URL has a .well-known/openid-configuration or a .well-known/jwks.json)") flagSet.Var(&jwtIssuers, "extra-jwt-issuers", "if skip-jwt-bearer-tokens is set, a list of extra JWT issuer=audience pairs (where the issuer URL has a .well-known/openid-configuration or a .well-known/jwks.json)")

12
oauthproxy.go
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@ -2,6 +2,7 @@ package main
import ( import (
"context" "context"
"crypto/tls"
b64 "encoding/base64" b64 "encoding/base64"
"errors" "errors"
"fmt" "fmt"
@ -128,9 +129,14 @@ func (u *UpstreamProxy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
// NewReverseProxy creates a new reverse proxy for proxying requests to upstream // NewReverseProxy creates a new reverse proxy for proxying requests to upstream
// servers // servers
func NewReverseProxy(target *url.URL, flushInterval time.Duration) (proxy *httputil.ReverseProxy) { func NewReverseProxy(target *url.URL, opts *Options) (proxy *httputil.ReverseProxy) {
proxy = httputil.NewSingleHostReverseProxy(target) proxy = httputil.NewSingleHostReverseProxy(target)
proxy.FlushInterval = flushInterval proxy.FlushInterval = opts.FlushInterval
if opts.SSLUpstreamInsecureSkipVerify {
proxy.Transport = &http.Transport{
TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
}
}
return proxy return proxy
} }
@ -163,7 +169,7 @@ func NewFileServer(path string, filesystemPath string) (proxy http.Handler) {
// NewWebSocketOrRestReverseProxy creates a reverse proxy for REST or websocket based on url // NewWebSocketOrRestReverseProxy creates a reverse proxy for REST or websocket based on url
func NewWebSocketOrRestReverseProxy(u *url.URL, opts *Options, auth hmacauth.HmacAuth) http.Handler { func NewWebSocketOrRestReverseProxy(u *url.URL, opts *Options, auth hmacauth.HmacAuth) http.Handler {
u.Path = "" u.Path = ""
proxy := NewReverseProxy(u, opts.FlushInterval) proxy := NewReverseProxy(u, opts)
if !opts.PassHostHeader { if !opts.PassHostHeader {
setProxyUpstreamHostHeader(proxy, u) setProxyUpstreamHostHeader(proxy, u)
} else { } else {

4
oauthproxy_test.go
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@ -122,7 +122,7 @@ func TestNewReverseProxy(t *testing.T) {
backendHost := net.JoinHostPort(backendHostname, backendPort) backendHost := net.JoinHostPort(backendHostname, backendPort)
proxyURL, _ := url.Parse(backendURL.Scheme + "://" + backendHost + "/") proxyURL, _ := url.Parse(backendURL.Scheme + "://" + backendHost + "/")
proxyHandler := NewReverseProxy(proxyURL, time.Second) proxyHandler := NewReverseProxy(proxyURL, &Options{FlushInterval: time.Second})
setProxyUpstreamHostHeader(proxyHandler, proxyURL) setProxyUpstreamHostHeader(proxyHandler, proxyURL)
frontend := httptest.NewServer(proxyHandler) frontend := httptest.NewServer(proxyHandler)
defer frontend.Close() defer frontend.Close()
@ -144,7 +144,7 @@ func TestEncodedSlashes(t *testing.T) {
defer backend.Close() defer backend.Close()
b, _ := url.Parse(backend.URL) b, _ := url.Parse(backend.URL)
proxyHandler := NewReverseProxy(b, time.Second) proxyHandler := NewReverseProxy(b, &Options{FlushInterval: time.Second})
setProxyDirector(proxyHandler) setProxyDirector(proxyHandler)
frontend := httptest.NewServer(proxyHandler) frontend := httptest.NewServer(proxyHandler)
defer frontend.Close() defer frontend.Close()

33
options.go
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@ -62,22 +62,23 @@ type Options struct {
// Embed SessionOptions // Embed SessionOptions
options.SessionOptions options.SessionOptions
Upstreams []string `flag:"upstream" cfg:"upstreams" env:"OAUTH2_PROXY_UPSTREAMS"` Upstreams []string `flag:"upstream" cfg:"upstreams" env:"OAUTH2_PROXY_UPSTREAMS"`
SkipAuthRegex []string `flag:"skip-auth-regex" cfg:"skip_auth_regex" env:"OAUTH2_PROXY_SKIP_AUTH_REGEX"` SkipAuthRegex []string `flag:"skip-auth-regex" cfg:"skip_auth_regex" env:"OAUTH2_PROXY_SKIP_AUTH_REGEX"`
SkipJwtBearerTokens bool `flag:"skip-jwt-bearer-tokens" cfg:"skip_jwt_bearer_tokens" env:"OAUTH2_PROXY_SKIP_JWT_BEARER_TOKENS"` SkipJwtBearerTokens bool `flag:"skip-jwt-bearer-tokens" cfg:"skip_jwt_bearer_tokens" env:"OAUTH2_PROXY_SKIP_JWT_BEARER_TOKENS"`
ExtraJwtIssuers []string `flag:"extra-jwt-issuers" cfg:"extra_jwt_issuers" env:"OAUTH2_PROXY_EXTRA_JWT_ISSUERS"` ExtraJwtIssuers []string `flag:"extra-jwt-issuers" cfg:"extra_jwt_issuers" env:"OAUTH2_PROXY_EXTRA_JWT_ISSUERS"`
PassBasicAuth bool `flag:"pass-basic-auth" cfg:"pass_basic_auth" env:"OAUTH2_PROXY_PASS_BASIC_AUTH"` PassBasicAuth bool `flag:"pass-basic-auth" cfg:"pass_basic_auth" env:"OAUTH2_PROXY_PASS_BASIC_AUTH"`
BasicAuthPassword string `flag:"basic-auth-password" cfg:"basic_auth_password" env:"OAUTH2_PROXY_BASIC_AUTH_PASSWORD"` BasicAuthPassword string `flag:"basic-auth-password" cfg:"basic_auth_password" env:"OAUTH2_PROXY_BASIC_AUTH_PASSWORD"`
PassAccessToken bool `flag:"pass-access-token" cfg:"pass_access_token" env:"OAUTH2_PROXY_PASS_ACCESS_TOKEN"` PassAccessToken bool `flag:"pass-access-token" cfg:"pass_access_token" env:"OAUTH2_PROXY_PASS_ACCESS_TOKEN"`
PassHostHeader bool `flag:"pass-host-header" cfg:"pass_host_header" env:"OAUTH2_PROXY_PASS_HOST_HEADER"` PassHostHeader bool `flag:"pass-host-header" cfg:"pass_host_header" env:"OAUTH2_PROXY_PASS_HOST_HEADER"`
SkipProviderButton bool `flag:"skip-provider-button" cfg:"skip_provider_button" env:"OAUTH2_PROXY_SKIP_PROVIDER_BUTTON"` SkipProviderButton bool `flag:"skip-provider-button" cfg:"skip_provider_button" env:"OAUTH2_PROXY_SKIP_PROVIDER_BUTTON"`
PassUserHeaders bool `flag:"pass-user-headers" cfg:"pass_user_headers" env:"OAUTH2_PROXY_PASS_USER_HEADERS"` PassUserHeaders bool `flag:"pass-user-headers" cfg:"pass_user_headers" env:"OAUTH2_PROXY_PASS_USER_HEADERS"`
SSLInsecureSkipVerify bool `flag:"ssl-insecure-skip-verify" cfg:"ssl_insecure_skip_verify" env:"OAUTH2_PROXY_SSL_INSECURE_SKIP_VERIFY"` SSLInsecureSkipVerify bool `flag:"ssl-insecure-skip-verify" cfg:"ssl_insecure_skip_verify" env:"OAUTH2_PROXY_SSL_INSECURE_SKIP_VERIFY"`
SetXAuthRequest bool `flag:"set-xauthrequest" cfg:"set_xauthrequest" env:"OAUTH2_PROXY_SET_XAUTHREQUEST"` SSLUpstreamInsecureSkipVerify bool `flag:"ssl-upstream-insecure-skip-verify" cfg:"ssl_upstream_insecure_skip_verify" env:"OAUTH2_PROXY_SSL_UPSTREAM_INSECURE_SKIP_VERIFY"`
SetAuthorization bool `flag:"set-authorization-header" cfg:"set_authorization_header" env:"OAUTH2_PROXY_SET_AUTHORIZATION_HEADER"` SetXAuthRequest bool `flag:"set-xauthrequest" cfg:"set_xauthrequest" env:"OAUTH2_PROXY_SET_XAUTHREQUEST"`
PassAuthorization bool `flag:"pass-authorization-header" cfg:"pass_authorization_header" env:"OAUTH2_PROXY_PASS_AUTHORIZATION_HEADER"` SetAuthorization bool `flag:"set-authorization-header" cfg:"set_authorization_header" env:"OAUTH2_PROXY_SET_AUTHORIZATION_HEADER"`
SkipAuthPreflight bool `flag:"skip-auth-preflight" cfg:"skip_auth_preflight" env:"OAUTH2_PROXY_SKIP_AUTH_PREFLIGHT"` PassAuthorization bool `flag:"pass-authorization-header" cfg:"pass_authorization_header" env:"OAUTH2_PROXY_PASS_AUTHORIZATION_HEADER"`
FlushInterval time.Duration `flag:"flush-interval" cfg:"flush_interval" env:"OAUTH2_PROXY_FLUSH_INTERVAL"` SkipAuthPreflight bool `flag:"skip-auth-preflight" cfg:"skip_auth_preflight" env:"OAUTH2_PROXY_SKIP_AUTH_PREFLIGHT"`
FlushInterval time.Duration `flag:"flush-interval" cfg:"flush_interval" env:"OAUTH2_PROXY_FLUSH_INTERVAL"`
// These options allow for other providers besides Google, with // These options allow for other providers besides Google, with
// potential overrides. // potential overrides.