Implement Bucket ACL support

pkg/fs/acl.go

@@ -0,0 +1,45 @@
+package fs
+
+import (
+	"os"
+	"path/filepath"
+)
+
+// IsPrivateBucket - is private bucket
+func (fs API) IsPrivateBucket(bucket string) bool {
+	fs.lock.Lock()
+	defer fs.lock.Unlock()
+	// get bucket path
+	bucketDir := filepath.Join(fs.path, bucket)
+	fi, err := os.Stat(bucketDir)
+	if err != nil {
+		return true
+	}
+	return permToACL(fi.Mode()).IsPrivate()
+}
+
+// IsPublicBucket - is public bucket
+func (fs API) IsPublicBucket(bucket string) bool {
+	fs.lock.Lock()
+	defer fs.lock.Unlock()
+	// get bucket path
+	bucketDir := filepath.Join(fs.path, bucket)
+	fi, err := os.Stat(bucketDir)
+	if err != nil {
+		return true
+	}
+	return permToACL(fi.Mode()).IsPublicReadWrite()
+}
+
+// IsReadOnlyBucket - is read only bucket
+func (fs API) IsReadOnlyBucket(bucket string) bool {
+	fs.lock.Lock()
+	defer fs.lock.Unlock()
+	// get bucket path
+	bucketDir := filepath.Join(fs.path, bucket)
+	fi, err := os.Stat(bucketDir)
+	if err != nil {
+		return true
+	}
+	return permToACL(fi.Mode()).IsPublicRead()
+}