Refactor organization of scope aware request utils

Reorganized the structure of the Request Utils due to their widespread use
resulting in circular imports issues (mostly because of middleware & logger).

pkg/apis/middleware/middleware_suite_test.go

@@ -0,0 +1,19 @@
+package middleware_test
+
+import (
+	"testing"
+
+	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/logger"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+// TestMiddlewareSuite and related tests are in a *_test package
+// to prevent circular imports with the `logger` package which uses
+// this functionality
+func TestMiddlewareSuite(t *testing.T) {
+	logger.SetOutput(GinkgoWriter)
+
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Middleware API")
+}

pkg/apis/middleware/scope.go

@@ -1,9 +1,18 @@
 package middleware
 
 import (
+	"context"
+	"net/http"
+
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/sessions"
 )
 
+type scopeKey string
+
+// RequestScopeKey uses a typed string to reduce likelihood of clashing
+// with other context keys
+const RequestScopeKey scopeKey = "request-scope"
+
 // RequestScope contains information regarding the request that is being made.
 // The RequestScope is used to pass information between different middlewares
 // within the chain.
@@ -26,3 +35,19 @@ type RequestScope struct {
 	// it was loaded or not.
 	SessionRevalidated bool
 }
+
+// GetRequestScope returns the current request scope from the given request
+func GetRequestScope(req *http.Request) *RequestScope {
+	scope := req.Context().Value(RequestScopeKey)
+	if scope == nil {
+		return nil
+	}
+
+	return scope.(*RequestScope)
+}
+
+// AddRequestScope adds a RequestScope to a request
+func AddRequestScope(req *http.Request, scope *RequestScope) *http.Request {
+	ctx := context.WithValue(req.Context(), RequestScopeKey, scope)
+	return req.WithContext(ctx)
+}

pkg/apis/middleware/scope_test.go

@@ -0,0 +1,56 @@
+package middleware_test
+
+import (
+	"net/http"
+
+	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Scope Suite", func() {
+	Context("GetRequestScope", func() {
+		var request *http.Request
+
+		BeforeEach(func() {
+			var err error
+			request, err = http.NewRequest("", "http://127.0.0.1/", nil)
+			Expect(err).ToNot(HaveOccurred())
+		})
+
+		Context("with a scope", func() {
+			var scope *middleware.RequestScope
+
+			BeforeEach(func() {
+				scope = &middleware.RequestScope{}
+				request = middleware.AddRequestScope(request, scope)
+			})
+
+			It("returns the scope", func() {
+				s := middleware.GetRequestScope(request)
+				Expect(s).ToNot(BeNil())
+				Expect(s).To(Equal(scope))
+			})
+
+			Context("if the scope is then modified", func() {
+				BeforeEach(func() {
+					Expect(scope.SaveSession).To(BeFalse())
+					scope.SaveSession = true
+				})
+
+				It("returns the updated session", func() {
+					s := middleware.GetRequestScope(request)
+					Expect(s).ToNot(BeNil())
+					Expect(s).To(Equal(scope))
+					Expect(s.SaveSession).To(BeTrue())
+				})
+			})
+		})
+
+		Context("without a scope", func() {
+			It("returns nil", func() {
+				Expect(middleware.GetRequestScope(request)).To(BeNil())
+			})
+		})
+	})
+})

pkg/cookies/cookies.go

@@ -9,14 +9,14 @@ import (
 
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/options"
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/logger"
-	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/util"
+	requestutil "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/requests/util"
 )
 
 // MakeCookie constructs a cookie from the given parameters,
 // discovering the domain from the request if not specified.
 func MakeCookie(req *http.Request, name string, value string, path string, domain string, httpOnly bool, secure bool, expiration time.Duration, now time.Time, sameSite http.SameSite) *http.Cookie {
 	if domain != "" {
-		host := util.GetRequestHost(req)
+		host := requestutil.GetRequestHost(req)
 		if h, _, err := net.SplitHostPort(host); err == nil {
 			host = h
 		}
@@ -48,7 +48,7 @@ func MakeCookieFromOptions(req *http.Request, name string, value string, cookieO
 	// If nothing matches, create the cookie with the shortest domain
 	defaultDomain := ""
 	if len(cookieOpts.Domains) > 0 {
-		logger.Errorf("Warning: request host %q did not match any of the specific cookie domains of %q", util.GetRequestHost(req), strings.Join(cookieOpts.Domains, ","))
+		logger.Errorf("Warning: request host %q did not match any of the specific cookie domains of %q", requestutil.GetRequestHost(req), strings.Join(cookieOpts.Domains, ","))
 		defaultDomain = cookieOpts.Domains[len(cookieOpts.Domains)-1]
 	}
 	return MakeCookie(req, name, value, cookieOpts.Path, defaultDomain, cookieOpts.HTTPOnly, cookieOpts.Secure, expiration, now, ParseSameSite(cookieOpts.SameSite))
@@ -57,7 +57,7 @@ func MakeCookieFromOptions(req *http.Request, name string, value string, cookieO
 // GetCookieDomain returns the correct cookie domain given a list of domains
 // by checking the X-Fowarded-Host and host header of an an http request
 func GetCookieDomain(req *http.Request, cookieDomains []string) string {
-	host := util.GetRequestHost(req)
+	host := requestutil.GetRequestHost(req)
 	for _, domain := range cookieDomains {
 		if strings.HasSuffix(host, domain) {
 			return domain

pkg/logger/logger.go

@@ -12,7 +12,7 @@ import (
 	"text/template"
 	"time"
 
-	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/util"
+	requestutil "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/requests/util"
 )
 
 // AuthStatus defines the different types of auth logging that occur
@@ -197,7 +197,7 @@ func (l *Logger) PrintAuthf(username string, req *http.Request, status AuthStatu
 
 	err := l.authTemplate.Execute(l.writer, authLogMessageData{
 		Client:        client,
-		Host:          util.GetRequestHost(req),
+		Host:          requestutil.GetRequestHost(req),
 		Protocol:      req.Proto,
 		RequestMethod: req.Method,
 		Timestamp:     FormatTimestamp(now),
@@ -251,7 +251,7 @@ func (l *Logger) PrintReq(username, upstream string, req *http.Request, url url.
 
 	err := l.reqTemplate.Execute(l.writer, reqLogMessageData{
 		Client:          client,
-		Host:            util.GetRequestHost(req),
+		Host:            requestutil.GetRequestHost(req),
 		Protocol:        req.Proto,
 		RequestDuration: fmt.Sprintf("%0.3f", duration),
 		RequestMethod:   req.Method,

pkg/middleware/basic_session.go

@@ -5,6 +5,7 @@ import (
 	"net/http"
 
 	"github.com/justinas/alice"
+	middlewareapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
 	sessionsapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/sessions"
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/authentication/basic"
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/logger"
@@ -23,7 +24,7 @@ func NewBasicAuthSessionLoader(validator basic.Validator) alice.Constructor {
 // If a session was loaded by a previous handler, it will not be replaced.
 func loadBasicAuthSession(validator basic.Validator, next http.Handler) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		scope := GetRequestScope(req)
+		scope := middlewareapi.GetRequestScope(req)
 		// If scope is nil, this will panic.
 		// A scope should always be injected before this handler is called.
 		if scope.Session != nil {

pkg/middleware/basic_session_test.go

@@ -1,7 +1,6 @@
 package middleware
 
 import (
-	"context"
 	"fmt"
 	"net/http"
 	"net/http/httptest"
@@ -40,8 +39,7 @@ var _ = Describe("Basic Auth Session Suite", func() {
 				// Set up the request with the authorization header and a request scope
 				req := httptest.NewRequest("", "/", nil)
 				req.Header.Set("Authorization", in.authorizationHeader)
-				contextWithScope := context.WithValue(req.Context(), requestScopeKey, scope)
-				req = req.WithContext(contextWithScope)
+				req = middlewareapi.AddRequestScope(req, scope)
 
 				rw := httptest.NewRecorder()
 
@@ -57,7 +55,7 @@ var _ = Describe("Basic Auth Session Suite", func() {
 				// from the scope
 				var gotSession *sessionsapi.SessionState
 				handler := NewBasicAuthSessionLoader(validator)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-					gotSession = r.Context().Value(requestScopeKey).(*middlewareapi.RequestScope).Session
+					gotSession = middlewareapi.GetRequestScope(r).Session
 				}))
 				handler.ServeHTTP(rw, req)
 

pkg/middleware/headers.go

@@ -5,6 +5,7 @@ import (
 	"net/http"
 
 	"github.com/justinas/alice"
+	middlewareapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/options"
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/header"
 )
@@ -61,7 +62,7 @@ func newRequestHeaderInjector(headers []options.Header) (alice.Constructor, erro
 
 func injectRequestHeaders(injector header.Injector, next http.Handler) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		scope := GetRequestScope(req)
+		scope := middlewareapi.GetRequestScope(req)
 
 		// If scope is nil, this will panic.
 		// A scope should always be injected before this handler is called.
@@ -92,7 +93,7 @@ func newResponseHeaderInjector(headers []options.Header) (alice.Constructor, err
 
 func injectResponseHeaders(injector header.Injector, next http.Handler) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		scope := GetRequestScope(req)
+		scope := middlewareapi.GetRequestScope(req)
 
 		// If scope is nil, this will panic.
 		// A scope should always be injected before this handler is called.

pkg/middleware/headers_test.go

@@ -1,7 +1,6 @@
 package middleware
 
 import (
-	"context"
 	"encoding/base64"
 	"net/http"
 	"net/http/httptest"
@@ -31,8 +30,7 @@ var _ = Describe("Headers Suite", func() {
 
 			// Set up the request with a request scope
 			req := httptest.NewRequest("", "/", nil)
-			contextWithScope := context.WithValue(req.Context(), requestScopeKey, scope)
-			req = req.WithContext(contextWithScope)
+			req = middlewareapi.AddRequestScope(req, scope)
 			req.Header = in.initialHeaders.Clone()
 
 			rw := httptest.NewRecorder()
@@ -218,8 +216,7 @@ var _ = Describe("Headers Suite", func() {
 
 			// Set up the request with a request scope
 			req := httptest.NewRequest("", "/", nil)
-			contextWithScope := context.WithValue(req.Context(), requestScopeKey, scope)
-			req = req.WithContext(contextWithScope)
+			req = middlewareapi.AddRequestScope(req, scope)
 
 			rw := httptest.NewRecorder()
 			for key, values := range in.initialHeaders {

pkg/middleware/jwt_session.go

@@ -37,7 +37,7 @@ type jwtSessionLoader struct {
 // If a session was loaded by a previous handler, it will not be replaced.
 func (j *jwtSessionLoader) loadSession(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		scope := GetRequestScope(req)
+		scope := middlewareapi.GetRequestScope(req)
 		// If scope is nil, this will panic.
 		// A scope should always be injected before this handler is called.
 		if scope.Session != nil {

pkg/middleware/jwt_session_test.go

@@ -103,8 +103,7 @@ Nnc3a3lGVWFCNUMxQnNJcnJMTWxka1dFaHluYmI4Ongtb2F1dGgtYmFzaWM=`
 				// Set up the request with the authorization header and a request scope
 				req := httptest.NewRequest("", "/", nil)
 				req.Header.Set("Authorization", in.authorizationHeader)
-				contextWithScope := context.WithValue(req.Context(), requestScopeKey, scope)
-				req = req.WithContext(contextWithScope)
+				req = middlewareapi.AddRequestScope(req, scope)
 
 				rw := httptest.NewRecorder()
 
@@ -116,7 +115,7 @@ Nnc3a3lGVWFCNUMxQnNJcnJMTWxka1dFaHluYmI4Ongtb2F1dGgtYmFzaWM=`
 				// from the scope
 				var gotSession *sessionsapi.SessionState
 				handler := NewJwtSessionLoader(sessionLoaders)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-					gotSession = r.Context().Value(requestScopeKey).(*middlewareapi.RequestScope).Session
+					gotSession = middlewareapi.GetRequestScope(r).Session
 				}))
 				handler.ServeHTTP(rw, req)
 

pkg/middleware/scope.go

@@ -1,39 +1,20 @@
 package middleware
 
 import (
-	"context"
 	"net/http"
 
 	"github.com/justinas/alice"
 	middlewareapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
-	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/options"
 )
 
-type scopeKey string
-
-// requestScopeKey uses a typed string to reduce likelihood of clashing
-// with other context keys
-const requestScopeKey scopeKey = "request-scope"
-
-func NewScope(opts *options.Options) alice.Constructor {
+func NewScope(reverseProxy bool) alice.Constructor {
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
 			scope := &middlewareapi.RequestScope{
-				ReverseProxy: opts.ReverseProxy,
+				ReverseProxy: reverseProxy,
 			}
-			contextWithScope := context.WithValue(req.Context(), requestScopeKey, scope)
-			requestWithScope := req.WithContext(contextWithScope)
-			next.ServeHTTP(rw, requestWithScope)
+			req = middlewareapi.AddRequestScope(req, scope)
+			next.ServeHTTP(rw, req)
 		})
 	}
 }
-
-// GetRequestScope returns the current request scope from the given request
-func GetRequestScope(req *http.Request) *middlewareapi.RequestScope {
-	scope := req.Context().Value(requestScopeKey)
-	if scope == nil {
-		return nil
-	}
-
-	return scope.(*middlewareapi.RequestScope)
-}

pkg/middleware/scope_test.go

@@ -1,7 +1,6 @@
 package middleware
 
 import (
-	"context"
 	"net/http"
 	"net/http/httptest"
 
@@ -21,73 +20,49 @@ var _ = Describe("Scope Suite", func() {
 			Expect(err).ToNot(HaveOccurred())
 
 			rw = httptest.NewRecorder()
-
-			handler := NewScope()(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-				nextRequest = r
-				w.WriteHeader(200)
-			}))
-			handler.ServeHTTP(rw, request)
 		})
 
-		It("does not add a scope to the original request", func() {
-			Expect(request.Context().Value(requestScopeKey)).To(BeNil())
-		})
-
-		It("cannot load a scope from the original request using GetRequestScope", func() {
-			Expect(GetRequestScope(request)).To(BeNil())
-		})
-
-		It("adds a scope to the request for the next handler", func() {
-			Expect(nextRequest.Context().Value(requestScopeKey)).ToNot(BeNil())
-		})
-
-		It("can load a scope from the next handler's request using GetRequestScope", func() {
-			Expect(GetRequestScope(nextRequest)).ToNot(BeNil())
-		})
-	})
-
-	Context("GetRequestScope", func() {
-		var request *http.Request
-
-		BeforeEach(func() {
-			var err error
-			request, err = http.NewRequest("", "http://127.0.0.1/", nil)
-			Expect(err).ToNot(HaveOccurred())
-		})
-
-		Context("with a scope", func() {
-			var scope *middlewareapi.RequestScope
-
+		Context("ReverseProxy is false", func() {
 			BeforeEach(func() {
-				scope = &middlewareapi.RequestScope{}
-				contextWithScope := context.WithValue(request.Context(), requestScopeKey, scope)
-				request = request.WithContext(contextWithScope)
+				handler := NewScope(false)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+					nextRequest = r
+					w.WriteHeader(200)
+				}))
+				handler.ServeHTTP(rw, request)
 			})
 
-			It("returns the scope", func() {
-				s := GetRequestScope(request)
-				Expect(s).ToNot(BeNil())
-				Expect(s).To(Equal(scope))
+			It("does not add a scope to the original request", func() {
+				Expect(request.Context().Value(middlewareapi.RequestScopeKey)).To(BeNil())
 			})
 
-			Context("if the scope is then modified", func() {
-				BeforeEach(func() {
-					Expect(scope.SaveSession).To(BeFalse())
-					scope.SaveSession = true
-				})
+			It("cannot load a scope from the original request using GetRequestScope", func() {
+				Expect(middlewareapi.GetRequestScope(request)).To(BeNil())
+			})
 
-				It("returns the updated session", func() {
-					s := GetRequestScope(request)
-					Expect(s).ToNot(BeNil())
-					Expect(s).To(Equal(scope))
-					Expect(s.SaveSession).To(BeTrue())
-				})
+			It("adds a scope to the request for the next handler", func() {
+				Expect(nextRequest.Context().Value(middlewareapi.RequestScopeKey)).ToNot(BeNil())
+			})
+
+			It("can load a scope from the next handler's request using GetRequestScope", func() {
+				scope := middlewareapi.GetRequestScope(nextRequest)
+				Expect(scope).ToNot(BeNil())
+				Expect(scope.ReverseProxy).To(BeFalse())
 			})
 		})
 
-		Context("without a scope", func() {
-			It("returns nil", func() {
-				Expect(GetRequestScope(request)).To(BeNil())
+		Context("ReverseProxy is true", func() {
+			BeforeEach(func() {
+				handler := NewScope(true)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+					nextRequest = r
+					w.WriteHeader(200)
+				}))
+				handler.ServeHTTP(rw, request)
+			})
+
+			It("return a scope where the ReverseProxy field is true", func() {
+				scope := middlewareapi.GetRequestScope(nextRequest)
+				Expect(scope).ToNot(BeNil())
+				Expect(scope.ReverseProxy).To(BeTrue())
 			})
 		})
 	})

pkg/middleware/stored_session.go

@@ -8,6 +8,7 @@ import (
 	"time"
 
 	"github.com/justinas/alice"
+	middlewareapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
 	sessionsapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/sessions"
 	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/logger"
 )
@@ -59,7 +60,7 @@ type storedSessionLoader struct {
 // If a session was loader by a previous handler, it will not be replaced.
 func (s *storedSessionLoader) loadSession(next http.Handler) http.Handler {
 	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
-		scope := GetRequestScope(req)
+		scope := middlewareapi.GetRequestScope(req)
 		// If scope is nil, this will panic.
 		// A scope should always be injected before this handler is called.
 		if scope.Session != nil {

pkg/middleware/stored_session_test.go

@@ -104,8 +104,7 @@ var _ = Describe("Stored Session Suite", func() {
 				// Set up the request with the request headesr and a request scope
 				req := httptest.NewRequest("", "/", nil)
 				req.Header = in.requestHeaders
-				contextWithScope := context.WithValue(req.Context(), requestScopeKey, scope)
-				req = req.WithContext(contextWithScope)
+				req = middlewareapi.AddRequestScope(req, scope)
 
 				rw := httptest.NewRecorder()
 
@@ -120,7 +119,7 @@ var _ = Describe("Stored Session Suite", func() {
 				// from the scope
 				var gotSession *sessionsapi.SessionState
 				handler := NewStoredSessionLoader(opts)(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-					gotSession = r.Context().Value(requestScopeKey).(*middlewareapi.RequestScope).Session
+					gotSession = middlewareapi.GetRequestScope(r).Session
 				}))
 				handler.ServeHTTP(rw, req)
 

pkg/requests/util/util.go

@@ -0,0 +1,48 @@
+package util
+
+import (
+	"net/http"
+
+	middlewareapi "github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
+)
+
+// GetRequestProto returns the request scheme or X-Forwarded-Proto if present
+// and the request is proxied.
+func GetRequestProto(req *http.Request) string {
+	proto := req.Header.Get("X-Forwarded-Proto")
+	if !IsProxied(req) || proto == "" {
+		proto = req.URL.Scheme
+	}
+	return proto
+}
+
+// GetRequestHost returns the request host header or X-Forwarded-Host if
+// present and the request is proxied.
+func GetRequestHost(req *http.Request) string {
+	host := req.Header.Get("X-Forwarded-Host")
+	if !IsProxied(req) || host == "" {
+		host = req.Host
+	}
+	return host
+}
+
+// GetRequestURI return the request URI or X-Forwarded-Uri if present and the
+// request is proxied.
+func GetRequestURI(req *http.Request) string {
+	uri := req.Header.Get("X-Forwarded-Uri")
+	if !IsProxied(req) || uri == "" {
+		// Use RequestURI to preserve ?query
+		uri = req.URL.RequestURI()
+	}
+	return uri
+}
+
+// IsProxied determines if a request was from a proxy based on the RequestScope
+// ReverseProxy tracker.
+func IsProxied(req *http.Request) bool {
+	scope := middlewareapi.GetRequestScope(req)
+	if scope == nil {
+		return false
+	}
+	return scope.ReverseProxy
+}

pkg/requests/util/util_suite_test.go

@@ -0,0 +1,19 @@
+package util_test
+
+import (
+	"testing"
+
+	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/logger"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+// TestRequestUtilSuite and related tests are in a *_test package
+// to prevent circular imports with the `logger` package which uses
+// this functionality
+func TestRequestUtilSuite(t *testing.T) {
+	logger.SetOutput(GinkgoWriter)
+
+	RegisterFailHandler(Fail)
+	RunSpecs(t, "Request Utils")
+}

pkg/requests/util/util_test.go

@@ -0,0 +1,131 @@
+package util_test
+
+import (
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+
+	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/apis/middleware"
+	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/requests/util"
+	. "github.com/onsi/ginkgo"
+	. "github.com/onsi/gomega"
+)
+
+var _ = Describe("Util Suite", func() {
+	const (
+		proto = "http"
+		host  = "www.oauth2proxy.test"
+		uri   = "/test/endpoint"
+	)
+	var req *http.Request
+
+	BeforeEach(func() {
+		req = httptest.NewRequest(
+			http.MethodGet,
+			fmt.Sprintf("%s://%s%s", proto, host, uri),
+			nil,
+		)
+	})
+
+	Context("GetRequestHost", func() {
+		Context("IsProxied is false", func() {
+			BeforeEach(func() {
+				req = middleware.AddRequestScope(req, &middleware.RequestScope{})
+			})
+
+			It("returns the host", func() {
+				Expect(util.GetRequestHost(req)).To(Equal(host))
+			})
+
+			It("ignores X-Forwarded-Host and returns the host", func() {
+				req.Header.Add("X-Forwarded-Host", "external.oauth2proxy.text")
+				Expect(util.GetRequestHost(req)).To(Equal(host))
+			})
+		})
+
+		Context("IsProxied is true", func() {
+			BeforeEach(func() {
+				req = middleware.AddRequestScope(req, &middleware.RequestScope{
+					ReverseProxy: true,
+				})
+			})
+
+			It("returns the host if X-Forwarded-Host is not present", func() {
+				Expect(util.GetRequestHost(req)).To(Equal(host))
+			})
+
+			It("returns the X-Forwarded-Host when present", func() {
+				req.Header.Add("X-Forwarded-Host", "external.oauth2proxy.text")
+				Expect(util.GetRequestHost(req)).To(Equal("external.oauth2proxy.text"))
+			})
+		})
+	})
+
+	Context("GetRequestProto", func() {
+		Context("IsProxied is false", func() {
+			BeforeEach(func() {
+				req = middleware.AddRequestScope(req, &middleware.RequestScope{})
+			})
+
+			It("returns the scheme", func() {
+				Expect(util.GetRequestProto(req)).To(Equal(proto))
+			})
+
+			It("ignores X-Forwarded-Proto and returns the scheme", func() {
+				req.Header.Add("X-Forwarded-Proto", "https")
+				Expect(util.GetRequestProto(req)).To(Equal(proto))
+			})
+		})
+
+		Context("IsProxied is true", func() {
+			BeforeEach(func() {
+				req = middleware.AddRequestScope(req, &middleware.RequestScope{
+					ReverseProxy: true,
+				})
+			})
+
+			It("returns the scheme if X-Forwarded-Proto is not present", func() {
+				Expect(util.GetRequestProto(req)).To(Equal(proto))
+			})
+
+			It("returns the X-Forwarded-Proto when present", func() {
+				req.Header.Add("X-Forwarded-Proto", "https")
+				Expect(util.GetRequestProto(req)).To(Equal("https"))
+			})
+		})
+	})
+
+	Context("GetRequestURI", func() {
+		Context("IsProxied is false", func() {
+			BeforeEach(func() {
+				req = middleware.AddRequestScope(req, &middleware.RequestScope{})
+			})
+
+			It("returns the URI", func() {
+				Expect(util.GetRequestURI(req)).To(Equal(uri))
+			})
+
+			It("ignores X-Forwarded-Uri and returns the URI", func() {
+				req.Header.Add("X-Forwarded-Uri", "/some/other/path")
+				Expect(util.GetRequestURI(req)).To(Equal(uri))
+			})
+		})
+
+		Context("IsProxied is true", func() {
+			BeforeEach(func() {
+				req = middleware.AddRequestScope(req, &middleware.RequestScope{
+					ReverseProxy: true,
+				})
+			})
+
+			It("returns the URI if X-Forwarded-Uri is not present", func() {
+				Expect(util.GetRequestURI(req)).To(Equal(uri))
+			})
+
+			It("returns the X-Forwarded-Uri when present", func() {
+				req.Header.Add("X-Forwarded-Uri", "/some/other/path")
+				Expect(util.GetRequestURI(req)).To(Equal("/some/other/path"))
+			})
+		})
+	})
+})

pkg/util/util.go

@@ -4,9 +4,6 @@ import (
 	"crypto/x509"
 	"fmt"
 	"io/ioutil"
-	"net/http"
-
-	"github.com/oauth2-proxy/oauth2-proxy/v7/pkg/middleware"
 )
 
 func GetCertPool(paths []string) (*x509.CertPool, error) {
@@ -26,37 +23,3 @@ func GetCertPool(paths []string) (*x509.CertPool, error) {
 	}
 	return pool, nil
 }
-
-// GetRequestProto return the request host header or X-Forwarded-Proto if present
-func GetRequestProto(req *http.Request) string {
-	proto := req.Header.Get("X-Forwarded-Proto")
-	if !isProxied(req) || proto == "" {
-		proto = req.URL.Scheme
-	}
-	return proto
-}
-
-// GetRequestHost return the request host header or X-Forwarded-Host if present
-// and reverse proxy mode is enabled.
-func GetRequestHost(req *http.Request) string {
-	host := req.Header.Get("X-Forwarded-Host")
-	if !isProxied(req) || host == "" {
-		host = req.Host
-	}
-	return host
-}
-
-// GetRequestURI return the request host header or X-Forwarded-Uri if present
-func GetRequestURI(req *http.Request) string {
-	uri := req.Header.Get("X-Forwarded-Uri")
-	if !isProxied(req) || uri == "" {
-		// Use RequestURI to preserve ?query
-		uri = req.URL.RequestURI()
-	}
-	return uri
-}
-
-func isProxied(req *http.Request) bool {
-	scope := middleware.GetRequestScope(req)
-	return scope.ReverseProxy
-}

pkg/util/util_test.go

@@ -4,11 +4,9 @@ import (
 	"crypto/x509/pkix"
 	"encoding/asn1"
 	"io/ioutil"
-	"net/http/httptest"
 	"os"
 	"testing"
 
-	. "github.com/onsi/gomega"
 	"github.com/stretchr/testify/assert"
 )
 
@@ -97,42 +95,3 @@ func TestGetCertPool(t *testing.T) {
 	expectedSubjects := []string{testCA1Subj, testCA2Subj}
 	assert.Equal(t, expectedSubjects, got)
 }
-
-func TestGetRequestHost(t *testing.T) {
-	g := NewWithT(t)
-
-	req := httptest.NewRequest("GET", "https://example.com", nil)
-	host := GetRequestHost(req)
-	g.Expect(host).To(Equal("example.com"))
-
-	proxyReq := httptest.NewRequest("GET", "http://internal.example.com", nil)
-	proxyReq.Header.Add("X-Forwarded-Host", "external.example.com")
-	extHost := GetRequestHost(proxyReq)
-	g.Expect(extHost).To(Equal("external.example.com"))
-}
-
-func TestGetRequestProto(t *testing.T) {
-	g := NewWithT(t)
-
-	req := httptest.NewRequest("GET", "https://example.com", nil)
-	proto := GetRequestProto(req)
-	g.Expect(proto).To(Equal("https"))
-
-	proxyReq := httptest.NewRequest("GET", "https://internal.example.com", nil)
-	proxyReq.Header.Add("X-Forwarded-Proto", "http")
-	extProto := GetRequestProto(proxyReq)
-	g.Expect(extProto).To(Equal("http"))
-}
-
-func TestGetRequestURI(t *testing.T) {
-	g := NewWithT(t)
-
-	req := httptest.NewRequest("GET", "https://example.com/ping", nil)
-	uri := GetRequestURI(req)
-	g.Expect(uri).To(Equal("/ping"))
-
-	proxyReq := httptest.NewRequest("GET", "http://internal.example.com/bong", nil)
-	proxyReq.Header.Add("X-Forwarded-Uri", "/ping")
-	extURI := GetRequestURI(proxyReq)
-	g.Expect(extURI).To(Equal("/ping"))
-}