feat: prevent converting filename to lower case

To keep original file path case for output download filename, try
using original path case speified or got from file system.

Author: marjune163

src/param/helper.go

@@ -115,7 +115,7 @@ eachInput:
 			continue
 		}
 		urlPath = util.CleanUrlPath(urlPath)
-		fsPath, err := util.NormalizeFsPath(fsPath)
+		fsPath, err := filepath.Abs(fsPath)
 		if err != nil {
 			errs = append(errs, err)
 			continue

src/param/main.go

@@ -6,6 +6,7 @@ import (
 	"mjpclab.dev/ghfs/src/serverError"
 	"mjpclab.dev/ghfs/src/util"
 	"os"
+	"path/filepath"
 )
 
 type Param struct {
@@ -97,7 +98,7 @@ func (param *Param) normalize() (errs []error) {
 	var err error
 
 	// root
-	param.Root, err = util.NormalizeFsPath(param.Root)
+	param.Root, err = filepath.Abs(param.Root)
 	errs = serverError.AppendError(errs, err)
 
 	// alias
@@ -145,7 +146,7 @@ func (param *Param) normalize() (errs []error) {
 		errs = append(errs, es...)
 	}
 
-	param.RestrictAccessDirs, es = normalizeAllPathValues(param.RestrictAccessDirs, true, util.NormalizeFsPath, util.ExtractHostsFromUrls)
+	param.RestrictAccessDirs, es = normalizeAllPathValues(param.RestrictAccessDirs, true, filepath.Abs, util.ExtractHostsFromUrls)
 	if len(es) == 0 {
 		dedupAllPathValues(param.RestrictAccessDirs)
 	} else {
@@ -156,7 +157,7 @@ func (param *Param) normalize() (errs []error) {
 	param.HeadersUrls, es = normalizeAllPathValues(param.HeadersUrls, false, util.NormalizeUrlPath, normalizeHeaders)
 	errs = append(errs, es...)
 
-	param.HeadersDirs, es = normalizeAllPathValues(param.HeadersDirs, false, util.NormalizeFsPath, normalizeHeaders)
+	param.HeadersDirs, es = normalizeAllPathValues(param.HeadersDirs, false, filepath.Abs, normalizeHeaders)
 	errs = append(errs, es...)
 
 	// upload/mkdir/delete/archive/cors/auth urls/dirs

src/param/util.go

@@ -2,6 +2,7 @@ package param
 
 import (
 	"mjpclab.dev/ghfs/src/util"
+	"path/filepath"
 	"strings"
 	"unicode/utf8"
 )
@@ -119,7 +120,7 @@ func NormalizeFsPaths(inputs []string) []string {
 			continue
 		}
 
-		abs, err := util.NormalizeFsPath(input)
+		abs, err := filepath.Abs(input)
 		if err != nil {
 			continue
 		}

src/serverHandler/responseData.go

@@ -7,6 +7,7 @@ import (
 	"net/http"
 	"os"
 	"path"
+	"path/filepath"
 	"strings"
 )
 
@@ -301,7 +302,7 @@ func (h *aliasHandler) getResponseData(r *http.Request) (data *responseData, fsP
 	tailSlash := rawReqPath[len(rawReqPath)-1] == '/'
 
 	reqPath := util.CleanUrlPath(rawReqPath[len(h.aliasPrefix):])
-	reqFsPath, _ := util.NormalizeFsPath(h.root + reqPath)
+	reqFsPath, _ := filepath.Abs(h.root + reqPath)
 
 	status := http.StatusOK
 

src/util/path.go

@@ -93,7 +93,7 @@ func hasPrefixDirNoCase(absPath, prefix string, separator byte) bool {
 	return false
 }
 
-func NormalizeUrlPath(input string) (string, error) { // keep same func signature as `NormalizeFsPath`
+func NormalizeUrlPath(input string) (string, error) {
 	result := CleanUrlPath(input)
 	return result, nil
 }

src/util/path_unix.go

@@ -3,13 +3,7 @@
 
 package util
 
-import "path/filepath"
-
 var IsPathEqual = IsStrEqualAccurate
 
 var HasUrlPrefixDir = HasUrlPrefixDirAccurate
 var HasFsPrefixDir = HasFsPrefixDirAccurate
-
-func NormalizeFsPath(input string) (string, error) {
-	return filepath.Abs(input)
-}

src/util/path_windows.go

@@ -3,23 +3,7 @@
 
 package util
 
-import (
-	"path/filepath"
-	"strings"
-)
-
 var IsPathEqual = IsStrEqualNoCase
 
 var HasUrlPrefixDir = HasUrlPrefixDirNoCase
 var HasFsPrefixDir = HasFsPrefixDirNoCase
-
-func NormalizeFsPath(input string) (string, error) {
-	abs, err := filepath.Abs(input)
-	if err != nil {
-		return abs, err
-	}
-
-	abs = strings.ToLower(abs)
-
-	return abs, err
-}