Initial QSfera import

Server/vendor/github.com/crewjam/saml/time.go

@@ -0,0 +1,52 @@
+package saml
+
+import "time"
+
+// RelaxedTime is a version of time.Time that supports the time format
+// found in SAML documents.
+type RelaxedTime time.Time
+
+const timeFormat = "2006-01-02T15:04:05.999Z07:00"
+
+// MarshalText implements encoding.TextMarshaler
+func (m RelaxedTime) MarshalText() ([]byte, error) {
+	// According to section 1.2.2 of the OASIS SAML 1.1 spec, we can't trust
+	// other applications to handle time resolution finer than a millisecond.
+	//
+	// The time MUST be expressed in UTC.
+	return []byte(m.String()), nil
+}
+
+func (m RelaxedTime) String() string {
+	return time.Time(m).Round(time.Millisecond).UTC().Format(timeFormat)
+}
+
+// UnmarshalText implements encoding.TextUnmarshaler
+func (m *RelaxedTime) UnmarshalText(text []byte) error {
+	if len(text) == 0 {
+		*m = RelaxedTime(time.Time{})
+		return nil
+	}
+	t, err1 := time.Parse(time.RFC3339, string(text))
+	if err1 == nil {
+		t = t.Round(time.Millisecond)
+		*m = RelaxedTime(t)
+		return nil
+	}
+
+	t, err2 := time.Parse(time.RFC3339Nano, string(text))
+	if err2 == nil {
+		t = t.Round(time.Millisecond)
+		*m = RelaxedTime(t)
+		return nil
+	}
+
+	t, err2 = time.Parse("2006-01-02T15:04:05.999999999", string(text))
+	if err2 == nil {
+		t = t.Round(time.Millisecond)
+		*m = RelaxedTime(t)
+		return nil
+	}
+
+	return err1
+}