<?php
-
/**
- * @file src/Util/DateTimeFormat.php
+ * @copyright Copyright (C) 2010-2023, the Friendica project
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
*/
namespace Friendica\Util;
use Exception;
/**
- * @brief Temporal class
+ * Temporal class
*/
class DateTimeFormat
{
- const ATOM = 'Y-m-d\TH:i:s\Z';
+ const ATOM = 'Y-m-d\TH:i:s\Z';
const MYSQL = 'Y-m-d H:i:s';
- const HTTP = 'D, d M Y H:i:s \G\M\T';
+ const HTTP = 'D, d M Y H:i:s \G\M\T';
+ const JSON = 'Y-m-d\TH:i:s.v\Z';
+ const API = 'D M d H:i:s +0000 Y';
+
+ static $localTimezone = 'UTC';
+
+ public static function setLocalTimeZone(string $timezone)
+ {
+ self::$localTimezone = $timezone;
+ }
/**
* convert() shorthand for UTC.
* @return string
* @throws Exception
*/
- public static function utc($time, $format = self::MYSQL)
+ public static function utc(string $time, string $format = self::MYSQL): string
{
return self::convert($time, 'UTC', 'UTC', $format);
}
*/
public static function local($time, $format = self::MYSQL)
{
- return self::convert($time, date_default_timezone_get(), 'UTC', $format);
+ return self::convert($time, self::$localTimezone, 'UTC', $format);
}
/**
* @return string
* @throws Exception
*/
- public static function utcNow($format = self::MYSQL)
+ public static function utcNow(string $format = self::MYSQL): string
{
return self::utc('now', $format);
}
/**
- * @brief General purpose date parse/convert/format function.
+ * General purpose date parse/convert/format function.
*
* @param string $s Some parseable date/time string
* @param string $tz_to Destination timezone
* @return string Formatted date according to given format
* @throws Exception
*/
- public static function convert($s = 'now', $tz_to = 'UTC', $tz_from = 'UTC', $format = self::MYSQL)
+ public static function convert(string $s = 'now', string $tz_to = 'UTC', string $tz_from = 'UTC', string $format = self::MYSQL): string
{
// Defaults to UTC if nothing is set, but throws an exception if set to empty string.
// Provide some sane defaults regardless.
$s = 'now';
}
- /*
- * Slight hackish adjustment so that 'zero' datetime actually returns what is intended
- * otherwise we end up with -0001-11-30 ...
- * add 32 days so that we at least get year 00, and then hack around the fact that
- * months and days always start with 1.
- */
+ // Lowest possible datetime value
if (substr($s, 0, 10) <= '0001-01-01') {
- if ($s < '0000-00-00') {
- $s = '0000-00-00';
- }
- $d = new DateTime($s . ' + 32 days', new DateTimeZone('UTC'));
- return str_replace('1', '0', $d->format($format));
+ $d = new DateTime('now', new DateTimeZone('UTC'));
+ $d->setDate(1, 1, 1)->setTime(0, 0);
+ return $d->format($format);
}
try {
try {
$d = new DateTime($s, $from_obj);
} catch (Exception $e) {
- Logger::log('DateTimeFormat::convert: exception: ' . $e->getMessage());
- $d = new DateTime('now', $from_obj);
+ try {
+ $d = new DateTime(self::fix($s), $from_obj);
+ } catch (\Throwable $e) {
+ Logger::warning('DateTimeFormat::convert: exception: ' . $e->getMessage());
+ $d = new DateTime('now', $from_obj);
+ }
}
try {
$to_obj = new DateTimeZone('UTC');
}
- $d->setTimeZone($to_obj);
+ $d->setTimezone($to_obj);
return $d->format($format);
}
+ /**
+ * Fix weird date formats.
+ *
+ * Note: This method isn't meant to sanitize valid date/time strings, for example it will mangle relative date
+ * strings like "now - 3 days".
+ *
+ * @see \Friendica\Test\src\Util\DateTimeFormatTest::dataFix() for a list of examples handled by this method.
+ * @param string $dateString
+ * @return string
+ */
+ public static function fix(string $dateString): string
+ {
+ $search = ['Mär', 'März', 'Mai', 'Juni', 'Juli', 'Okt', 'Dez', 'ET' , 'ZZ', ' - ', '+', '&#43;', ' (Coordinated Universal Time)', '\\'];
+ $replace = ['Mar', 'Mar' , 'May', 'Jun' , 'Jul' , 'Oct', 'Dec', 'EST', 'Z' , ', ' , '+' , '+' , '' , ''];
+
+ $dateString = str_replace($search, $replace, $dateString);
+
+ $pregPatterns = [
+ ['#(\w+), (\d+ \w+ \d+) (\d+:\d+:\d+) (.+)#', '$2 $3 $4'],
+ ['#(\d+:\d+) (\w+), (\w+) (\d+), (\d+)#', '$1 $2 $3 $4 $5'],
+ ];
+
+ foreach ($pregPatterns as $pattern) {
+ $dateString = preg_replace($pattern[0], $pattern[1], $dateString);
+ }
+
+ return $dateString;
+ }
+
/**
* Checks, if the given string is a date with the pattern YYYY-MM
*
return true;
}
+
+ /**
+ * Checks, if the given string is a date with the pattern YYYY-MM-DD
+ *
+ * @param string $dateString The given date
+ *
+ * @return boolean True, if the date is a valid pattern
+ */
+ public function isYearMonthDay(string $dateString)
+ {
+ $date = DateTime::createFromFormat('Y-m-d', $dateString);
+ if (!$date) {
+ return false;
+ }
+
+ if (DateTime::getLastErrors()['error_count'] || DateTime::getLastErrors()['warning_count']) {
+ return false;
+ }
+
+ return true;
+ }
}
projects / friendica.git / blobdiff