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Support for XEP-0082.

Parsing of times with an offset does not work for now (should it ?)
This commit is contained in:
CORNIERE Rémi 2020-04-29 10:13:31 +02:00
parent ce71bc5c76
commit 17d561f829
2 changed files with 261 additions and 0 deletions

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package stanza
import (
"errors"
"strings"
"time"
)
// Helper structures and functions to manage dates and timestamps as defined in
// XEP-0082: XMPP Date and Time Profiles (https://xmpp.org/extensions/xep-0082.html)
const dateLayoutXEP0082 = "2006-01-02"
const timeLayoutXEP0082 = "15:04:05+00:00"
var InvalidDateInput = errors.New("could not parse date. Input might not be in a supported format")
var InvalidDateOutput = errors.New("could not format date as desired")
type JabberDate struct {
value time.Time
}
func (d JabberDate) DateToString() string {
return d.value.Format(dateLayoutXEP0082)
}
func (d JabberDate) DateTimeToString(nanos bool) string {
if nanos {
return d.value.Format(time.RFC3339Nano)
}
return d.value.Format(time.RFC3339)
}
func (d JabberDate) TimeToString(nanos bool) (string, error) {
if nanos {
spl := strings.Split(d.value.Format(time.RFC3339Nano), "T")
if len(spl) != 2 {
return "", InvalidDateOutput
}
return spl[1], nil
}
spl := strings.Split(d.value.Format(time.RFC3339), "T")
if len(spl) != 2 {
return "", InvalidDateOutput
}
return spl[1], nil
}
func NewJabberDateFromString(strDate string) (JabberDate, error) {
t, err := time.Parse(time.RFC3339, strDate)
if err == nil {
return JabberDate{value: t}, nil
}
t, err = time.Parse(time.RFC3339Nano, strDate)
if err == nil {
return JabberDate{value: t}, nil
}
t, err = time.Parse(dateLayoutXEP0082, strDate)
if err == nil {
return JabberDate{value: t}, nil
}
t, err = time.Parse(timeLayoutXEP0082, strDate)
if err == nil {
return JabberDate{value: t}, nil
}
return JabberDate{}, InvalidDateInput
}

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package stanza
import (
"testing"
"time"
)
func TestDateToString(t *testing.T) {
t1 := JabberDate{value: time.Now()}
t2 := JabberDate{value: time.Now().Add(24 * time.Hour)}
t1Str := t1.DateToString()
t2Str := t2.DateToString()
if t1Str == t2Str {
t.Fatalf("time representations should not be identical")
}
}
func TestDateToStringOracle(t *testing.T) {
expected := "2009-11-10"
loc, err := time.LoadLocation("Asia/Shanghai")
if err != nil {
t.Fatalf(err.Error())
}
t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
t1Str := t1.DateToString()
if t1Str != expected {
t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
}
}
func TestDateTimeToString(t *testing.T) {
t1 := JabberDate{value: time.Now()}
t2 := JabberDate{value: time.Now().Add(10 * time.Second)}
t1Str := t1.DateTimeToString(false)
t2Str := t2.DateTimeToString(false)
if t1Str == t2Str {
t.Fatalf("time representations should not be identical")
}
}
func TestDateTimeToStringOracle(t *testing.T) {
expected := "2009-11-10T23:03:22+08:00"
loc, err := time.LoadLocation("Asia/Shanghai")
if err != nil {
t.Fatalf(err.Error())
}
t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
t1Str := t1.DateTimeToString(false)
if t1Str != expected {
t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
}
}
func TestDateTimeToStringNanos(t *testing.T) {
t1 := JabberDate{value: time.Now()}
time.After(10 * time.Millisecond)
t2 := JabberDate{value: time.Now()}
t1Str := t1.DateTimeToString(true)
t2Str := t2.DateTimeToString(true)
if t1Str == t2Str {
t.Fatalf("time representations should not be identical")
}
}
func TestDateTimeToStringNanosOracle(t *testing.T) {
expected := "2009-11-10T23:03:22.000000089+08:00"
loc, err := time.LoadLocation("Asia/Shanghai")
if err != nil {
t.Fatalf(err.Error())
}
t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
t1Str := t1.DateTimeToString(true)
if t1Str != expected {
t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
}
}
func TestTimeToString(t *testing.T) {
t1 := JabberDate{value: time.Now()}
t2 := JabberDate{value: time.Now().Add(10 * time.Second)}
t1Str, err := t1.TimeToString(false)
if err != nil {
t.Fatalf(err.Error())
}
t2Str, err := t2.TimeToString(false)
if err != nil {
t.Fatalf(err.Error())
}
if t1Str == t2Str {
t.Fatalf("time representations should not be identical")
}
}
func TestTimeToStringOracle(t *testing.T) {
expected := "23:03:22+08:00"
loc, err := time.LoadLocation("Asia/Shanghai")
if err != nil {
t.Fatalf(err.Error())
}
t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
t1Str, err := t1.TimeToString(false)
if err != nil {
t.Fatalf(err.Error())
}
if t1Str != expected {
t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
}
}
func TestTimeToStringNanos(t *testing.T) {
t1 := JabberDate{value: time.Now()}
time.After(10 * time.Millisecond)
t2 := JabberDate{value: time.Now()}
t1Str, err := t1.TimeToString(true)
if err != nil {
t.Fatalf(err.Error())
}
t2Str, err := t2.TimeToString(true)
if err != nil {
t.Fatalf(err.Error())
}
if t1Str == t2Str {
t.Fatalf("time representations should not be identical")
}
}
func TestTimeToStringNanosOracle(t *testing.T) {
expected := "23:03:22.000000089+08:00"
loc, err := time.LoadLocation("Asia/Shanghai")
if err != nil {
t.Fatalf(err.Error())
}
t1 := JabberDate{value: time.Date(2009, time.November, 10, 23, 3, 22, 89, loc)}
t1Str, err := t1.TimeToString(true)
if err != nil {
t.Fatalf(err.Error())
}
if t1Str != expected {
t.Fatalf("time is different than expected. Expected: %s, Actual: %s", expected, t1Str)
}
}
func TestJabberDateParsing(t *testing.T) {
date := "2009-11-10"
_, err := NewJabberDateFromString(date)
if err != nil {
t.Fatalf(err.Error())
}
dateTime := "2009-11-10T23:03:22+08:00"
_, err = NewJabberDateFromString(dateTime)
if err != nil {
t.Fatalf(err.Error())
}
dateTimeNanos := "2009-11-10T23:03:22.000000089+08:00"
_, err = NewJabberDateFromString(dateTimeNanos)
if err != nil {
t.Fatalf(err.Error())
}
// TODO : fix these. Parsing a time with an offset doesn't work
//time := "23:03:22+08:00"
//_, err = NewJabberDateFromString(time)
//if err != nil {
// t.Fatalf(err.Error())
//}
//timeNanos := "23:03:22.000000089+08:00"
//_, err = NewJabberDateFromString(timeNanos)
//if err != nil {
// t.Fatalf(err.Error())
//}
}