mirror of
https://github.com/the-djmaze/snappymail.git
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104 lines
2.8 KiB
PHP
104 lines
2.8 KiB
PHP
<?php
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/*
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* This file is part of MailSo.
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*
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* (c) 2014 Usenko Timur
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace MailSo\Base;
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/**
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* @category MailSo
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* @package Base
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*/
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abstract class DateTimeHelper
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{
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/**
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* @staticvar \DateTimeZone $oDateTimeZone
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*/
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public static function GetUtcTimeZoneObject() : \DateTimeZone
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{
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static $oDateTimeZone = null;
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if (null === $oDateTimeZone)
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{
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$oDateTimeZone = new \DateTimeZone('UTC');
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}
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return $oDateTimeZone;
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}
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/**
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* Parse date string formated as "Thu, 10 Jun 2010 08:58:33 -0700 (PDT)"
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* RFC2822
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*/
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public static function ParseRFC2822DateString(string $sDateTime) : int
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{
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$sDateTime = \trim($sDateTime);
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if (empty($sDateTime))
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{
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return 0;
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}
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$sDateTime = \trim(\preg_replace('/ \([a-zA-Z0-9]+\)$/', '', $sDateTime));
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$oDateTime = \DateTime::createFromFormat(\DateTime::RFC822, $sDateTime, static::GetUtcTimeZoneObject())
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?: \DateTime::createFromFormat('D, d M Y H:i:s O', $sDateTime, static::GetUtcTimeZoneObject());
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return $oDateTime ? $oDateTime->getTimestamp() : 0;
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}
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/**
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* Parse date string formated as "10-Jan-2012 01:58:17 -0800"
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* IMAP INTERNALDATE Format
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*/
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public static function ParseInternalDateString(string $sDateTime) : int
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{
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$sDateTime = \trim($sDateTime);
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if (empty($sDateTime))
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{
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return 0;
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}
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if (\preg_match('/^[a-z]{2,4}, /i', $sDateTime)) // RFC2822 ~ "Thu, 10 Jun 2010 08:58:33 -0700 (PDT)"
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{
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return static::ParseRFC2822DateString($sDateTime);
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}
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$oDateTime = \DateTime::createFromFormat('d-M-Y H:i:s O', $sDateTime, static::GetUtcTimeZoneObject());
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return $oDateTime ? $oDateTime->getTimestamp() : 0;
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}
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/**
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* Parse date string formated as "2011-06-14 23:59:59 +0400"
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*/
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public static function ParseDateStringType1(string $sDateTime) : int
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{
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$sDateTime = \trim($sDateTime);
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if (empty($sDateTime))
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{
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return 0;
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}
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$oDateTime = \DateTime::createFromFormat('Y-m-d H:i:s O', $sDateTime, static::GetUtcTimeZoneObject());
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return $oDateTime ? $oDateTime->getTimestamp() : 0;
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}
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/**
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* Parse date string formated as "2015-05-08T14:32:18.483-07:00"
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*/
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public static function TryToParseSpecEtagFormat(string $sDateTime) : int
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{
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$oDateTime = \DateTime::createFromFormat(\DateTime::RFC3339_EXTENDED, $sDateTime, static::GetUtcTimeZoneObject());
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if ($oDateTime) {
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return $oDateTime->getTimestamp();
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}
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$sDateTime = \preg_replace('/ \([a-zA-Z0-9]+\)$/', '', \trim($sDateTime));
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$sDateTime = \preg_replace('/(:[\d]{2})\.[\d]{3}/', '$1', \trim($sDateTime));
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$sDateTime = \preg_replace('/(-[\d]{2})T([\d]{2}:)/', '$1 $2', \trim($sDateTime));
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$sDateTime = \preg_replace('/([\-+][\d]{2}):([\d]{2})$/', ' $1$2', \trim($sDateTime));
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return static::ParseDateStringType1($sDateTime);
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}
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}
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