1 files changed, 74 insertions, 0 deletions
diff --git a/pkg/idec/files.go b/pkg/idec/files.go
new file mode 100644
index 0000000..8fd73b4
--- /dev/null
+++ b/pkg/idec/files.go
@@ -0,0 +1,74 @@
+package idec
+
+import (
+	"errors"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"gitrepo.ru/neonxp/idecnode/pkg/model"
+)
+
+var ErrFileNotAllowed = errors.New("file not allowed")
+
+func (i *IDEC) FilesList(pauth string) ([]model.File, error) {
+	fileDirs := i.allowedDirs(pauth)
+	res := []model.File{}
+	for _, dir := range fileDirs {
+		files, err := filepath.Glob(dir + "/*")
+		if err != nil {
+			return nil, err
+		}
+		for _, f := range files {
+			fi, err := os.Stat(f)
+			if err != nil {
+				return nil, err
+			}
+
+			res = append(res, model.File{
+				Name:     fi.Name(),
+				Size:     fi.Size(),
+				FullName: strings.TrimPrefix(f, i.config.FilesDirectory),
+			})
+		}
+	}
+
+	return res, nil
+}
+
+func (i *IDEC) GetFile(pauth string, path string, w io.Writer) error {
+	file := filepath.Clean(filepath.Join(i.config.FilesDirectory, path))
+	allowed := false
+	allowedDirs := i.allowedDirs(pauth)
+	for _, dir := range allowedDirs {
+		if filepath.HasPrefix(file, dir) {
+			allowed = true
+		}
+	}
+	if !allowed {
+		return ErrFileNotAllowed
+	}
+
+	fp, err := os.Open(file)
+	if err != nil {
+		return err
+	}
+	defer fp.Close()
+
+	_, err = io.Copy(w, fp)
+
+	return err
+}
+
+func (i *IDEC) allowedDirs(pauth string) []string {
+	fileDirs := []string{
+		filepath.Join(i.config.FilesDirectory, "pub"),
+	}
+	if pauth != "" {
+		if _, err := i.GetPointByAuth(pauth); err == nil {
+			fileDirs = append(fileDirs, filepath.Join(i.config.FilesDirectory, "priv"))
+		}
+	}
+	return fileDirs
+}