fix: broken embedio on windows

internal/io/embedio.go

@@ -0,0 +1,15 @@
+package io
+
+import (
+	"io/fs"
+	"path/filepath"
+	"strings"
+)
+
+// FSReadFile wraps fs.ReadFile supporting embedio on windows
+func FSReadFile(fsys fs.FS, name string) ([]byte, error) {
+	if filepath.Separator != '/' {
+		name = strings.ReplaceAll(name, string(filepath.Separator), "/")
+	}
+	return fs.ReadFile(fsys, name)
+}

internal/operators/from_file.go

@@ -7,14 +7,16 @@ import (
 	"errors"
 	"io/fs"
 	"os"
-	"path"
+	"path/filepath"
+
+	"github.com/corazawaf/coraza/v3/internal/io"
 )
 
 var errEmptyDirs = errors.New("empty dirs")
 
-func loadFromFile(filepath string, dirs []string, root fs.FS) ([]byte, error) {
-	if path.IsAbs(filepath) {
-		return fs.ReadFile(root, filepath)
+func loadFromFile(filename string, dirs []string, root fs.FS) ([]byte, error) {
+	if filepath.IsAbs(filename) {
+		return io.FSReadFile(root, filename)
 	}
 
 	if len(dirs) == 0 {
@@ -30,8 +32,8 @@ func loadFromFile(filepath string, dirs []string, root fs.FS) ([]byte, error) {
 	)
 
 	for _, p := range dirs {
-		absFilepath := path.Join(p, filepath)
-		content, err = fs.ReadFile(root, absFilepath)
+		absFilepath := filepath.Join(p, filename)
+		content, err = io.FSReadFile(root, absFilepath)
 		if err != nil {
 			if os.IsNotExist(err) {
 				continue

internal/seclang/parser.go

@@ -56,7 +56,7 @@ func (p *Parser) FromFile(profilePath string) error {
 		p.currentFile = profilePath
 		lastDir := p.currentDir
 		p.currentDir = filepath.Dir(profilePath)
-		file, err := fs.ReadFile(p.root, profilePath)
+		file, err := io.FSReadFile(p.root, profilePath)
 		if err != nil {
 			// we don't use defer for this as tinygo does not seem to like it
 			p.currentDir = originalDir