Export Replacer and use concrete type instead of interface

The interface was only making things difficult; a concrete pointer is
probably best.

4 files changed, 7 insertions, 7 deletions

diff --git a/modules/caddyhttp/fileserver/browse.go b/modules/caddyhttp/fileserver/browse.go
index aa8372e..e5e137f 100644
--- a/modules/caddyhttp/fileserver/browse.go
+++ b/modules/caddyhttp/fileserver/browse.go
@@ -52,7 +52,7 @@ func (fsrv *FileServer) serveBrowse(dirPath string, w http.ResponseWriter, r *ht
 	}
 	defer dir.Close()
 
-	repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer)
+	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
 
 	// calling path.Clean here prevents weird breadcrumbs when URL paths are sketchy like /%2e%2e%2f
 	listing, err := fsrv.loadDirectoryContents(dir, path.Clean(r.URL.Path), repl)
@@ -87,7 +87,7 @@ func (fsrv *FileServer) serveBrowse(dirPath string, w http.ResponseWriter, r *ht
 	return nil
 }
 
-func (fsrv *FileServer) loadDirectoryContents(dir *os.File, urlPath string, repl caddy.Replacer) (browseListing, error) {
+func (fsrv *FileServer) loadDirectoryContents(dir *os.File, urlPath string, repl *caddy.Replacer) (browseListing, error) {
 	files, err := dir.Readdir(-1)
 	if err != nil {
 		return browseListing{}, err
diff --git a/modules/caddyhttp/fileserver/browselisting.go b/modules/caddyhttp/fileserver/browselisting.go
index b2349f8..9c7c4a2 100644
--- a/modules/caddyhttp/fileserver/browselisting.go
+++ b/modules/caddyhttp/fileserver/browselisting.go
@@ -27,7 +27,7 @@ import (
 	"github.com/dustin/go-humanize"
 )
 
-func (fsrv *FileServer) directoryListing(files []os.FileInfo, canGoUp bool, urlPath string, repl caddy.Replacer) browseListing {
+func (fsrv *FileServer) directoryListing(files []os.FileInfo, canGoUp bool, urlPath string, repl *caddy.Replacer) browseListing {
 	filesToHide := fsrv.transformHidePaths(repl)
 
 	var (
diff --git a/modules/caddyhttp/fileserver/matcher.go b/modules/caddyhttp/fileserver/matcher.go
index 5ca97f2..6c1e880 100644
--- a/modules/caddyhttp/fileserver/matcher.go
+++ b/modules/caddyhttp/fileserver/matcher.go
@@ -126,7 +126,7 @@ func (m MatchFile) Validate() error {
 //    - http.matchers.file.relative
 //    - http.matchers.file.absolute
 func (m MatchFile) Match(r *http.Request) bool {
-	repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer)
+	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
 	rel, abs, matched := m.selectFile(r)
 	if matched {
 		repl.Set("http.matchers.file.relative", rel)
@@ -140,7 +140,7 @@ func (m MatchFile) Match(r *http.Request) bool {
 // It returns the root-relative path to the matched file, the full
 // or absolute path, and whether a match was made.
 func (m MatchFile) selectFile(r *http.Request) (rel, abs string, matched bool) {
-	repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer)
+	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
 
 	root := repl.ReplaceAll(m.Root, ".")
 
diff --git a/modules/caddyhttp/fileserver/staticfiles.go b/modules/caddyhttp/fileserver/staticfiles.go
index f2722ba..d6cf4d6 100644
--- a/modules/caddyhttp/fileserver/staticfiles.go
+++ b/modules/caddyhttp/fileserver/staticfiles.go
@@ -106,7 +106,7 @@ func (fsrv *FileServer) Provision(ctx caddy.Context) error {
 }
 
 func (fsrv *FileServer) ServeHTTP(w http.ResponseWriter, r *http.Request, next caddyhttp.Handler) error {
-	repl := r.Context().Value(caddy.ReplacerCtxKey).(caddy.Replacer)
+	repl := r.Context().Value(caddy.ReplacerCtxKey).(*caddy.Replacer)
 
 	filesToHide := fsrv.transformHidePaths(repl)
 
@@ -293,7 +293,7 @@ func mapDirOpenError(originalErr error, name string) error {
 
 // transformHidePaths performs replacements for all the elements of
 // fsrv.Hide and returns a new list of the transformed values.
-func (fsrv *FileServer) transformHidePaths(repl caddy.Replacer) []string {
+func (fsrv *FileServer) transformHidePaths(repl *caddy.Replacer) []string {
 	hide := make([]string, len(fsrv.Hide))
 	for i := range fsrv.Hide {
 		hide[i] = repl.ReplaceAll(fsrv.Hide[i], "")