Moved functions

catchalluser.go

@@ -1,5 +1,11 @@
 package mailfull
 
+import (
+	"bufio"
+	"os"
+	"path/filepath"
+)
+
 // CatchAllUser represents a CatchAllUser.
 type CatchAllUser struct {
 	name string
@@ -22,3 +28,39 @@ func NewCatchAllUser(name string) (*CatchAllUser, error) {
 func (cu *CatchAllUser) Name() string {
 	return cu.name
 }
+
+// CatchAllUser returns a CatchAllUser that the input name has.
+func (r *Repository) CatchAllUser(domainName string) (*CatchAllUser, error) {
+	domain, err := r.Domain(domainName)
+	if err != nil {
+		return nil, err
+	}
+	if domain == nil {
+		return nil, ErrDomainNotExist
+	}
+
+	file, err := os.Open(filepath.Join(r.DirMailDataPath, domainName, FileNameCatchAllUser))
+	if err != nil {
+		return nil, err
+	}
+
+	scanner := bufio.NewScanner(file)
+	scanner.Scan()
+
+	name := scanner.Text()
+
+	if err := scanner.Err(); err != nil {
+		return nil, err
+	}
+
+	if name == "" {
+		return nil, nil
+	}
+
+	catchAllUser, err := NewCatchAllUser(name)
+	if err != nil {
+		return nil, err
+	}
+
+	return catchAllUser, nil
+}