update session package

component/session/utils.go

@@ -0,0 +1,150 @@
+package session
+
+import (
+	"fmt"
+	"strings"
+	"time"
+)
+
+var startTime time.Time
+
+func init() {
+	startTime = time.Now()
+}
+
+func date(t time.Time) string {
+	return t.Format("Mon Jan 2 15:04:05")
+}
+
+func now() string {
+	return time.Now().Format("2006-01-02 15:04:05")
+}
+
+func duration(start, end time.Time) string {
+	var t time.Duration
+	if end.IsZero() {
+		t = time.Now().Sub(start)
+	} else {
+		t = end.Sub(start)
+	}
+
+	switch {
+	case t < 1000*time.Millisecond:
+		t = t.Round(time.Millisecond)
+	default:
+		t = t.Round(time.Second)
+	}
+	return t.String()
+}
+
+func uptime() string {
+	// Time difference function
+	diff := func(a, b time.Time) (year, month, day, hour, min, sec int) {
+		if a.Location() != b.Location() {
+			b = b.In(a.Location())
+		}
+		if a.After(b) {
+			a, b = b, a
+		}
+		y1, M1, d1 := a.Date()
+		y2, M2, d2 := b.Date()
+
+		h1, m1, s1 := a.Clock()
+		h2, m2, s2 := b.Clock()
+
+		year = int(y2 - y1)
+		month = int(M2 - M1)
+		day = int(d2 - d1)
+		hour = int(h2 - h1)
+		min = int(m2 - m1)
+		sec = int(s2 - s1)
+
+		// Normalize negative values
+		if sec < 0 {
+			sec += 60
+			min--
+		}
+		if min < 0 {
+			min += 60
+			hour--
+		}
+		if hour < 0 {
+			hour += 24
+			day--
+		}
+		if day < 0 {
+			// days in month:
+			t := time.Date(y1, M1, 32, 0, 0, 0, 0, time.UTC)
+			day += 32 - t.Day()
+			month--
+		}
+		if month < 0 {
+			month += 12
+			year--
+		}
+
+		return
+	}
+
+	// Y M d h m s
+	now := time.Now()
+	year, month, day, hour, min, sec := diff(startTime, now)
+
+	var Y, M, d, h, m, s string
+
+	// Y M d
+	if year != 0 {
+		Y = fmt.Sprintf("%dY,", year)
+	}
+
+	if month != 0 {
+		M = fmt.Sprintf("%dM,", month)
+	}
+
+	if day != 0 {
+		d = fmt.Sprintf("%dd,", day)
+	}
+
+	// h m s
+	if hour != 0 {
+		h = fmt.Sprintf("%dh", hour)
+	}
+
+	if min != 0 {
+		m = fmt.Sprintf("%dm", min)
+	}
+
+	if sec != 0 {
+		s = fmt.Sprintf("%ds", sec)
+	}
+
+	return strings.Join([]string{Y, M, d, h, m, s}, "")
+}
+
+func byteCountSI(b int64) string {
+	const unit = 1000
+	if b < unit {
+		return fmt.Sprintf("%d B", b)
+	}
+	div, exp := int64(unit), 0
+	for n := b / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+	return fmt.Sprintf("%.1f %cB",
+		float64(b)/float64(div), "kMGTPE"[exp])
+}
+
+func byteCountIEC(b int64) string {
+	const unit = 1024
+	if b < unit {
+		return fmt.Sprintf("%d B", b)
+	}
+	div, exp := int64(unit), 0
+	for n := b / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+	return fmt.Sprintf("%.1f %ciB",
+		float64(b)/float64(div), "KMGTPE"[exp])
+}