X-Git-Url: https://git.r.bdr.sh/rbdr/mobius/blobdiff_plain/22c599abc18895f73e96095f35b71cf3357d41b4..21581958c38861f3a62ef7c27d0a8a6f4db2a1f8:/hotline/file_path.go

diff --git a/hotline/file_path.go b/hotline/file_path.go
index 71168dc..460af03 100644
--- a/hotline/file_path.go
+++ b/hotline/file_path.go
@@ -1,12 +1,14 @@
 package hotline
 
 import (
+	"bytes"
 	"encoding/binary"
+	"errors"
+	"io"
+	"path/filepath"
 	"strings"
 )
 
-const pathSeparator = "/" // File path separator TODO: make configurable to support Windows
-
 // FilePathItem represents the file or directory portion of a delimited file path (e.g. foo and bar in "/foo/bar")
 // 00 00
 // 09
@@ -16,41 +18,82 @@ type FilePathItem struct {
 	Name []byte
 }
 
-func NewFilePathItem(b []byte) FilePathItem {
-	return FilePathItem{
-		Len:  b[2],
-		Name: b[3:],
-	}
+type FilePath struct {
+	ItemCount [2]byte
+	Items     []FilePathItem
 }
 
-type FilePath struct {
-	PathItemCount []byte
-	PathItems     []FilePathItem
+func (fp *FilePath) UnmarshalBinary(b []byte) error {
+	reader := bytes.NewReader(b)
+	err := binary.Read(reader, binary.BigEndian, &fp.ItemCount)
+	if err != nil && !errors.Is(err, io.EOF) {
+		return err
+	}
+	if errors.Is(err, io.EOF) {
+		return nil
+	}
+
+	for i := uint16(0); i < fp.Len(); i++ {
+		// skip two bytes for the file path delimiter
+		_, _ = reader.Seek(2, io.SeekCurrent)
+
+		// read the length of the next pathItem
+		segLen, err := reader.ReadByte()
+		if err != nil {
+			return err
+		}
+
+		pBytes := make([]byte, segLen)
+
+		_, err = reader.Read(pBytes)
+		if err != nil && !errors.Is(err, io.EOF) {
+			return err
+		}
+
+		fp.Items = append(fp.Items, FilePathItem{Len: segLen, Name: pBytes})
+	}
+
+	return nil
 }
 
-func NewFilePath(b []byte) FilePath {
-	if b == nil {
-		return FilePath{}
+func (fp *FilePath) IsDropbox() bool {
+	if fp.Len() == 0 {
+		return false
 	}
 
-	fp := FilePath{PathItemCount: b[0:2]}
+	return strings.Contains(strings.ToLower(string(fp.Items[fp.Len()-1].Name)), "drop box")
+}
 
-	// number of items in the path
-	pathItemLen := binary.BigEndian.Uint16(b[0:2])
-	pathData := b[2:]
-	for i := uint16(0); i < pathItemLen; i++ {
-		segLen := pathData[2]
-		fp.PathItems = append(fp.PathItems, NewFilePathItem(pathData[:segLen+3]))
-		pathData = pathData[3+segLen:]
+func (fp *FilePath) IsUploadDir() bool {
+	if fp.Len() == 0 {
+		return false
 	}
 
-	return fp
+	return strings.Contains(strings.ToLower(string(fp.Items[fp.Len()-1].Name)), "upload")
+}
+
+func (fp *FilePath) Len() uint16 {
+	return binary.BigEndian.Uint16(fp.ItemCount[:])
 }
 
-func (fp *FilePath) String() string {
-	var out []string
-	for _, i := range fp.PathItems {
-		out = append(out, string(i.Name))
+func readPath(fileRoot string, filePath, fileName []byte) (fullPath string, err error) {
+	var fp FilePath
+	if filePath != nil {
+		if err = fp.UnmarshalBinary(filePath); err != nil {
+			return "", err
+		}
+	}
+
+	var subPath string
+	for _, pathItem := range fp.Items {
+		subPath = filepath.Join("/", subPath, string(pathItem.Name))
 	}
-	return strings.Join(out, pathSeparator)
+
+	fullPath = filepath.Join(
+		fileRoot,
+		subPath,
+		filepath.Join("/", string(fileName)),
+	)
+
+	return fullPath, nil
 }