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json.go
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json.go
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package localtime
import (
"errors"
"time"
)
func MarshalRFC3339(t time.Time) ([]byte, error) {
return quoteJSONString([]byte(t.Local().Format(time.RFC3339))), nil
}
func UnmarshalRFC3339(data []byte) (*time.Time, error) {
if string(data) == "null" {
return nil, nil
}
if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
return nil, errors.New("Time.UnmarshalJSON: input is not a JSON string")
}
data = data[len(`"`) : len(data)-len(`"`)]
timestamp, err := time.ParseInLocation(time.RFC3339, string(data), time.Local)
if err != nil {
// Try to parse RFC3339 without timezone
var err2 error
timestamp, err2 = time.ParseInLocation("2006-01-02T15:04:05", string(data), time.Local)
if err2 != nil {
return nil, errors.Join(err, err2)
}
}
utcTimestamp := timestamp.In(time.UTC)
return &utcTimestamp, nil
}
func MarshalRFC3339Date(t time.Time) ([]byte, error) {
return quoteJSONString([]byte(t.Local().Format(time.DateOnly))), nil
}
func UnmarshalRFC3339Date(data []byte) (*time.Time, error) {
if string(data) == "null" {
return nil, nil
}
if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
return nil, errors.New("Time.UnmarshalJSON: input is not a JSON string")
}
data = data[len(`"`) : len(data)-len(`"`)]
timestamp, err := time.ParseInLocation(time.DateOnly, string(data), time.Local)
if err != nil {
return nil, err
}
utcTimestamp := timestamp.Local()
return &utcTimestamp, nil
}
func MarshalNorwegianDateTime(t time.Time) ([]byte, error) {
return quoteJSONString([]byte(t.Local().Format("02.01.2006 15:04:05"))), nil
}
func UnmarshalNorwegianDateTime(data []byte) (*time.Time, error) {
if string(data) == "null" {
return nil, nil
}
if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
return nil, errors.New("Time.UnmarshalJSON: input is not a JSON string")
}
data = data[len(`"`) : len(data)-len(`"`)]
timestamp, err := time.ParseInLocation("02.01.2006 15:04:05", string(data), time.Local)
if err != nil {
return nil, err
}
utcTimestamp := timestamp.In(time.UTC)
return &utcTimestamp, nil
}
// Quotes the string if it'is not already quoted.
func quoteJSONString(s []byte) []byte {
if len(s) == 0 {
return []byte{}
}
if s[0] != '"' {
s = append([]byte{'"'}, s...)
}
if s[len(s)-1] != '"' {
s = append(s, '"')
}
return s
}
// Unqotes the string if it is quoted.
func unquoteJSONString(data []byte) []byte {
if len(data) < 2 {
return data
}
if data[0] == '"' {
data = data[1:]
}
if data[len(data)-1] == '"' {
data = data[:len(data)-1]
}
return data
}