fix test

routers/common/middleware.go

@@ -19,10 +19,24 @@ import (
 
 	"gitea.com/go-chi/session"
 	"github.com/chi-middleware/proxy"
+	"github.com/go-chi/chi/v5"
 )
 
 // ProtocolMiddlewares returns HTTP protocol related middlewares, and it provides a global panic recovery
 func ProtocolMiddlewares() (handlers []any) {
+	// make sure chi uses EscapedPath(RawPath) as RoutePath, then "%2f" could be handled correctly
+	handlers = append(handlers, func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {
+			ctx := chi.RouteContext(req.Context())
+			if req.URL.RawPath == "" {
+				ctx.RoutePath = req.URL.EscapedPath()
+			} else {
+				ctx.RoutePath = req.URL.RawPath
+			}
+			next.ServeHTTP(resp, req)
+		})
+	})
+
 	// prepare the ContextData and panic recovery
 	handlers = append(handlers, func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(resp http.ResponseWriter, req *http.Request) {

services/context/base.go

@@ -18,6 +18,7 @@ import (
 	"code.gitea.io/gitea/modules/json"
 	"code.gitea.io/gitea/modules/log"
 	"code.gitea.io/gitea/modules/optional"
+	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/translation"
 	"code.gitea.io/gitea/modules/web/middleware"
 
@@ -142,23 +143,27 @@ func (b *Base) RemoteAddr() string {
 	return b.Req.RemoteAddr
 }
 
-// Params returns the param on route
-func (b *Base) Params(p string) string {
-	s, _ := url.PathUnescape(chi.URLParam(b.Req, strings.TrimPrefix(p, ":")))
+// Params returns the param in request path, eg: "/{var}" => "/a%2fb", then `var == "a/b"`
+func (b *Base) Params(name string) string {
+	s, err := url.PathUnescape(b.PathParamRaw(name))
+	if err != nil && !setting.IsProd {
+		panic("Failed to unescape path param: " + err.Error() + ", there seems to be a double-unescaping bug")
+	}
 	return s
 }
 
-func (b *Base) PathParamRaw(p string) string {
-	return chi.URLParam(b.Req, strings.TrimPrefix(p, ":"))
+// PathParamRaw returns the raw param in request path, eg: "/{var}" => "/a%2fb", then `var == "a%2fb"`
+func (b *Base) PathParamRaw(name string) string {
+	return chi.URLParam(b.Req, strings.TrimPrefix(name, ":"))
 }
 
-// ParamsInt64 returns the param on route as int64
+// ParamsInt64 returns the param in request path as int64
 func (b *Base) ParamsInt64(p string) int64 {
 	v, _ := strconv.ParseInt(b.Params(p), 10, 64)
 	return v
 }
 
-// SetParams set params into routes
+// SetParams set request path params into routes
 func (b *Base) SetParams(k, v string) {
 	chiCtx := chi.RouteContext(b)
 	chiCtx.URLParams.Add(strings.TrimPrefix(k, ":"), url.PathEscape(v))

services/context/repo.go

@@ -1006,12 +1006,12 @@ func RepoRefByType(refType RepoRefType, ignoreNotExistErr ...bool) func(*Context
 			if refType == RepoRefLegacy {
 				// redirect from old URL scheme to new URL scheme
 				prefix := strings.TrimPrefix(setting.AppSubURL+strings.ToLower(strings.TrimSuffix(ctx.Req.URL.Path, ctx.Params("*"))), strings.ToLower(ctx.Repo.RepoLink))
-
-				ctx.Redirect(path.Join(
+				redirect := path.Join(
 					ctx.Repo.RepoLink,
 					util.PathEscapeSegments(prefix),
 					ctx.Repo.BranchNameSubURL(),
-					util.PathEscapeSegments(ctx.Repo.TreePath)))
+					util.PathEscapeSegments(ctx.Repo.TreePath))
+				ctx.Redirect(redirect)
 				return cancel
 			}
 		}

tests/integration/nonascii_branches_test.go

@@ -4,6 +4,7 @@
 package integration
 
 import (
+	"fmt"
 	"net/http"
 	"net/url"
 	"path"
@@ -14,22 +15,6 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
-func testSrcRouteRedirect(t *testing.T, session *TestSession, user, repo, route, expectedLocation string, expectedStatus int) {
-	prefix := path.Join("/", user, repo, "src")
-
-	// Make request
-	req := NewRequest(t, "GET", path.Join(prefix, route))
-	resp := session.MakeRequest(t, req, http.StatusSeeOther)
-
-	// Check Location header
-	location := resp.Header().Get("Location")
-	assert.Equal(t, path.Join(prefix, expectedLocation), location)
-
-	// Perform redirect
-	req = NewRequest(t, "GET", location)
-	session.MakeRequest(t, req, expectedStatus)
-}
-
 func setDefaultBranch(t *testing.T, session *TestSession, user, repo, branch string) {
 	location := path.Join("/", user, repo, "settings/branches")
 	csrf := GetCSRF(t, session, location)
@@ -41,7 +26,7 @@ func setDefaultBranch(t *testing.T, session *TestSession, user, repo, branch str
 	session.MakeRequest(t, req, http.StatusSeeOther)
 }
 
-func TestNonasciiBranches(t *testing.T) {
+func TestNonAsciiBranches(t *testing.T) {
 	testRedirects := []struct {
 		from   string
 		to     string
@@ -98,6 +83,7 @@ func TestNonasciiBranches(t *testing.T) {
 			to:     "branch/%E3%83%96%E3%83%A9%E3%83%B3%E3%83%81",
 			status: http.StatusOK,
 		},
+
 		// Tags
 		{
 			from:   "Тэг",
@@ -119,6 +105,7 @@ func TestNonasciiBranches(t *testing.T) {
 			to:     "tag/%E3%82%BF%E3%82%B0/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB.md",
 			status: http.StatusOK,
 		},
+
 		// Files
 		{
 			from:   "README.md",
@@ -135,6 +122,7 @@ func TestNonasciiBranches(t *testing.T) {
 			to:     "branch/Plus+Is+Not+Space/%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB.md",
 			status: http.StatusNotFound, // it's not on default branch
 		},
+
 		// Same but url-encoded (few tests)
 		{
 			from:   "%E3%83%96%E3%83%A9%E3%83%B3%E3%83%81",
@@ -205,10 +193,23 @@ func TestNonasciiBranches(t *testing.T) {
 	session := loginUser(t, user)
 
 	setDefaultBranch(t, session, user, repo, "Plus+Is+Not+Space")
+	defer setDefaultBranch(t, session, user, repo, "master")
 
 	for _, test := range testRedirects {
-		testSrcRouteRedirect(t, session, user, repo, test.from, test.to, test.status)
-	}
+		t.Run(test.from, func(t *testing.T) {
+			req := NewRequest(t, "GET", fmt.Sprintf("/%s/%s/src/%s", user, repo, test.from))
+			resp := session.MakeRequest(t, req, http.StatusSeeOther)
+			if resp.Code != http.StatusSeeOther {
+				return
+			}
 
-	setDefaultBranch(t, session, user, repo, "master")
+			redirectLocation := resp.Header().Get("Location")
+			if !assert.Equal(t, fmt.Sprintf("/%s/%s/src/%s", user, repo, test.to), redirectLocation) {
+				return
+			}
+
+			req = NewRequest(t, "GET", redirectLocation)
+			session.MakeRequest(t, req, test.status)
+		})
+	}
 }