/usr/share/php/Symfony/Component/Form/Extension/Core/DataTransformer/DateTimeToLocalizedStringTransformer.php is in php-symfony-form 3.4.6+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 | <?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form\Extension\Core\DataTransformer;
use Symfony\Component\Form\Exception\TransformationFailedException;
use Symfony\Component\Form\Exception\UnexpectedTypeException;
/**
* Transforms between a normalized time and a localized time string.
*
* @author Bernhard Schussek <bschussek@gmail.com>
* @author Florian Eckerstorfer <florian@eckerstorfer.org>
*/
class DateTimeToLocalizedStringTransformer extends BaseDateTimeTransformer
{
private $dateFormat;
private $timeFormat;
private $pattern;
private $calendar;
/**
* @see BaseDateTimeTransformer::formats for available format options
*
* @param string $inputTimezone The name of the input timezone
* @param string $outputTimezone The name of the output timezone
* @param int $dateFormat The date format
* @param int $timeFormat The time format
* @param int $calendar One of the \IntlDateFormatter calendar constants
* @param string $pattern A pattern to pass to \IntlDateFormatter
*
* @throws UnexpectedTypeException If a format is not supported or if a timezone is not a string
*/
public function __construct($inputTimezone = null, $outputTimezone = null, $dateFormat = null, $timeFormat = null, $calendar = \IntlDateFormatter::GREGORIAN, $pattern = null)
{
parent::__construct($inputTimezone, $outputTimezone);
if (null === $dateFormat) {
$dateFormat = \IntlDateFormatter::MEDIUM;
}
if (null === $timeFormat) {
$timeFormat = \IntlDateFormatter::SHORT;
}
if (!in_array($dateFormat, self::$formats, true)) {
throw new UnexpectedTypeException($dateFormat, implode('", "', self::$formats));
}
if (!in_array($timeFormat, self::$formats, true)) {
throw new UnexpectedTypeException($timeFormat, implode('", "', self::$formats));
}
$this->dateFormat = $dateFormat;
$this->timeFormat = $timeFormat;
$this->calendar = $calendar;
$this->pattern = $pattern;
}
/**
* Transforms a normalized date into a localized date string/array.
*
* @param \DateTimeInterface $dateTime A DateTimeInterface object
*
* @return string|array Localized date string/array
*
* @throws TransformationFailedException if the given value is not a \DateTimeInterface
* or if the date could not be transformed
*/
public function transform($dateTime)
{
if (null === $dateTime) {
return '';
}
if (!$dateTime instanceof \DateTimeInterface) {
throw new TransformationFailedException('Expected a \DateTimeInterface.');
}
$value = $this->getIntlDateFormatter()->format($dateTime->getTimestamp());
if (0 != intl_get_error_code()) {
throw new TransformationFailedException(intl_get_error_message());
}
return $value;
}
/**
* Transforms a localized date string/array into a normalized date.
*
* @param string|array $value Localized date string/array
*
* @return \DateTime Normalized date
*
* @throws TransformationFailedException if the given value is not a string,
* if the date could not be parsed
*/
public function reverseTransform($value)
{
if (!is_string($value)) {
throw new TransformationFailedException('Expected a string.');
}
if ('' === $value) {
return;
}
// date-only patterns require parsing to be done in UTC, as midnight might not exist in the local timezone due
// to DST changes
$dateOnly = $this->isPatternDateOnly();
$timestamp = $this->getIntlDateFormatter($dateOnly)->parse($value);
if (0 != intl_get_error_code()) {
throw new TransformationFailedException(intl_get_error_message());
} elseif ($timestamp > 253402214400) {
// This timestamp represents UTC midnight of 9999-12-31 to prevent 5+ digit years
throw new TransformationFailedException('Years beyond 9999 are not supported.');
}
try {
if ($dateOnly) {
// we only care about year-month-date, which has been delivered as a timestamp pointing to UTC midnight
$dateTime = new \DateTime(gmdate('Y-m-d', $timestamp), new \DateTimeZone($this->outputTimezone));
} else {
// read timestamp into DateTime object - the formatter delivers a timestamp
$dateTime = new \DateTime(sprintf('@%s', $timestamp));
}
// set timezone separately, as it would be ignored if set via the constructor,
// see http://php.net/manual/en/datetime.construct.php
$dateTime->setTimezone(new \DateTimeZone($this->outputTimezone));
} catch (\Exception $e) {
throw new TransformationFailedException($e->getMessage(), $e->getCode(), $e);
}
if ($this->outputTimezone !== $this->inputTimezone) {
$dateTime->setTimezone(new \DateTimeZone($this->inputTimezone));
}
return $dateTime;
}
/**
* Returns a preconfigured IntlDateFormatter instance.
*
* @param bool $ignoreTimezone Use UTC regardless of the configured timezone
*
* @return \IntlDateFormatter
*
* @throws TransformationFailedException in case the date formatter can not be constructed
*/
protected function getIntlDateFormatter($ignoreTimezone = false)
{
$dateFormat = $this->dateFormat;
$timeFormat = $this->timeFormat;
$timezone = $ignoreTimezone ? 'UTC' : $this->outputTimezone;
if (class_exists('IntlTimeZone', false)) {
// see https://bugs.php.net/bug.php?id=66323
$timezone = \IntlTimeZone::createTimeZone($timezone);
}
$calendar = $this->calendar;
$pattern = $this->pattern;
$intlDateFormatter = new \IntlDateFormatter(\Locale::getDefault(), $dateFormat, $timeFormat, $timezone, $calendar, $pattern);
// new \intlDateFormatter may return null instead of false in case of failure, see https://bugs.php.net/bug.php?id=66323
if (!$intlDateFormatter) {
throw new TransformationFailedException(intl_get_error_message(), intl_get_error_code());
}
$intlDateFormatter->setLenient(false);
return $intlDateFormatter;
}
/**
* Checks if the pattern contains only a date.
*
* @return bool
*/
protected function isPatternDateOnly()
{
if (null === $this->pattern) {
return false;
}
// strip escaped text
$pattern = preg_replace("#'(.*?)'#", '', $this->pattern);
// check for the absence of time-related placeholders
return 0 === preg_match('#[ahHkKmsSAzZOvVxX]#', $pattern);
}
}
|