eosclient: extend eos metadata with atime/ctime (cs3org#3954)

* eosclient: extend eos metadata with atime/ctime

* fix variable

* handle conv err

changelog/unreleased/extend-eos-meta.md

@@ -0,0 +1,6 @@
+Enhancement: Extend EOS metadata
+
+This PR extend the EOS metadata with atime and ctime fields.
+This change is backwards compatible.
+
+https://github.com/cs3org/reva/pull/3954

pkg/eosclient/eosbinary/eosbinary.go

@@ -1190,6 +1190,32 @@ func (c *Client) mapToFileInfo(ctx context.Context, kv, attrs map[string]string,
 		}
 	}
 
+	var ctimesec, ctimenanos uint64
+	if val, ok := kv["ctime"]; ok && val != "" {
+		split := strings.Split(val, ".")
+		ctimesec, err = strconv.ParseUint(split[0], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+		ctimenanos, _ = strconv.ParseUint(split[1], 10, 32)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	var atimesec, atimenanos uint64
+	if val, ok := kv["atime"]; ok && val != "" {
+		split := strings.Split(val, ".")
+		atimesec, err = strconv.ParseUint(split[0], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+		atimenanos, err = strconv.ParseUint(split[1], 10, 32)
+		if err != nil {
+			return nil, err
+		}
+	}
+
 	isDir := false
 	var xs *eosclient.Checksum
 	if _, ok := kv["files"]; ok {
@@ -1239,6 +1265,10 @@ func (c *Client) mapToFileInfo(ctx context.Context, kv, attrs map[string]string,
 		TreeSize:   treeSize,
 		MTimeSec:   mtimesec,
 		MTimeNanos: uint32(mtimenanos),
+		CTimeSec:   ctimesec,
+		CTimeNanos: uint32(ctimenanos),
+		ATimeSec:   atimesec,
+		ATimeNanos: uint32(atimenanos),
 		IsDir:      isDir,
 		Instance:   c.opt.URL,
 		SysACL:     sysACL,

pkg/eosclient/eosclient.go

@@ -74,13 +74,17 @@ type Attribute struct {
 // FileInfo represents the metadata information returned by querying the EOS namespace.
 type FileInfo struct {
 	IsDir      bool
-	MTimeNanos uint32
 	Inode      uint64            `json:"inode"`
 	FID        uint64            `json:"fid"`
 	UID        uint64            `json:"uid"`
 	GID        uint64            `json:"gid"`
 	TreeSize   uint64            `json:"tree_size"`
 	MTimeSec   uint64            `json:"mtime_sec"`
+	MTimeNanos uint32            `json:"mtime_nanos"`
+	ATimeSec   uint64            `json:"atime_sec"`
+	ATimeNanos uint32            `json:"atime_nanos"`
+	CTimeSec   uint64            `json:"ctime_sec"`
+	CTimeNanos uint32            `json:"ctime_nanos"`
 	Size       uint64            `json:"size"`
 	TreeCount  uint64            `json:"tree_count"`
 	File       string            `json:"eos_file"`