package validate import ( "net/url" "regexp" "strings" "time" "github.com/animenotifier/notify.moe/arn/autocorrect" ) const ( // DateFormat is the format used for short dates that don't include the time. DateFormat = "2006-01-02" // YearMonthFormat is the format used for validating dates that include the year and month. YearMonthFormat = "2006-01" // DateTimeFormat is the format used for long dates that include the time. DateTimeFormat = time.RFC3339 ) var ( discordNickRegex = regexp.MustCompile(`^([^#]{2,32})#(\d{4})$`) emailRegex = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$") ) // Nick tests if the given nickname is valid. func Nick(nick string) bool { if len(nick) < 2 { return false } return nick == autocorrect.UserNick(nick) } // DiscordNick tests if the given Discord nickname is valid. func DiscordNick(nick string) bool { return discordNickRegex.MatchString(nick) } // DateTime tells you whether the datetime is valid. func DateTime(date string) bool { if date == "" || strings.HasPrefix(date, "0001") { return false } _, err := time.Parse(DateTimeFormat, date) return err == nil } // Date tells you whether the datetime is valid. func Date(date string) bool { if date == "" || strings.HasPrefix(date, "0001") { return false } _, err := time.Parse(DateFormat, date) return err == nil } // YearMonth tells you whether the date contains only the year and the month. func YearMonth(date string) bool { if len(date) != len(YearMonthFormat) || strings.HasPrefix(date, "0001") { return false } _, err := time.Parse(YearMonthFormat, date) return err == nil } // Email tests if the given email address is valid. func Email(email string) bool { return emailRegex.MatchString(email) } // URI validates a URI. func URI(uri string) bool { _, err := url.ParseRequestURI(uri) return err == nil }