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Fix browser timezone information being lost (#5357)

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fixes #5209
This commit is contained in:
Johannes Meyer 2025-04-28 16:30:53 +02:00 committed by GitHub
commit 68c97fb6ff
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3 changed files with 36 additions and 96 deletions
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44
library/Icinga/Util/TimezoneDetect.php
View File

@ -3,6 +3,8 @@
namespace Icinga\Util;
use DateTimeZone;
/**
* Retrieve timezone information from cookie
*/
@ -15,13 +17,6 @@ class TimezoneDetect
*/
private static $success;
/**
* Timezone offset in minutes
*
* @var int
*/
private static $offset = 0;
/**
* @var string
*/
@ -34,13 +29,6 @@ class TimezoneDetect
*/
public static $cookieName = 'icingaweb2-tzo';
/**
* Timezone name
*
* @var string
*/
private static $timezone;
/**
* Create new object and try to identify the timezone
*/
@ -50,31 +38,14 @@ class TimezoneDetect
return;
}
if (array_key_exists(self::$cookieName, $_COOKIE)) {
$matches = array();
if (preg_match('/\A(-?\d+)[\-,](\d+)\z/', $_COOKIE[self::$cookieName], $matches)) {
$offset = $matches[1];
$timezoneName = timezone_name_from_abbr('', (int) $offset, (int) $matches[2]);
self::$success = (bool) $timezoneName;
if (self::$success) {
self::$offset = $offset;
self::$timezoneName = $timezoneName;
}
}
if (in_array($_COOKIE[self::$cookieName] ?? null, DateTimeZone::listIdentifiers(), true)) {
self::$timezoneName = $_COOKIE[self::$cookieName];
self::$success = true;
} else {
self::$success = false;
}
}
/**
* Get offset
*
* @return int
*/
public function getOffset()
{
return self::$offset;
}
/**
* Get timezone name
*
@ -102,6 +73,5 @@ class TimezoneDetect
{
self::$success = null;
self::$timezoneName = null;
self::$offset = 0;
}
}

40
public/js/icinga/timezone.js
View File

@ -4,28 +4,6 @@
'use strict';
/**
* Get the maximum timezone offset
*
* @returns {Number}
*/
Date.prototype.getStdTimezoneOffset = function() {
var year = new Date().getFullYear();
var offsetInJanuary = new Date(year, 0, 2).getTimezoneOffset();
var offsetInJune = new Date(year, 5, 2).getTimezoneOffset();
return Math.max(offsetInJanuary, offsetInJune);
};
/**
* Test for daylight saving time zone
*
* @returns {boolean}
*/
Date.prototype.isDst = function() {
return this.getStdTimezoneOffset() !== this.getTimezoneOffset();
};
/**
* Write timezone information into a cookie
*
@ -51,15 +29,11 @@
* Write timezone information into cookie
*/
writeTimezone: function() {
var date = new Date();
var timezoneOffset = (date.getTimezoneOffset()*60) * -1;
var dst = date.isDst();
if (this.readCookie(this.cookieName)) {
return;
}
this.writeCookie(this.cookieName, timezoneOffset + '-' + Number(dst), 1);
this.writeCookie(this.cookieName, Intl.DateTimeFormat().resolvedOptions().timeZone);
},
/**
@ -67,17 +41,9 @@
*
* @param {String} name
* @param {String} value
* @param {Number} days
*/
writeCookie: function(name, value, days) {
var expires = '';
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = '; expires=' + date.toGMTString();
}
document.cookie = name + '=' + value + expires + '; path=/';
writeCookie: function(name, value) {
document.cookie = name + '=' + value + '; path=/';
},
/**

54
test/php/library/Icinga/Util/TimezoneDetectTest.php
View File

@ -8,38 +8,42 @@ use Icinga\Util\TimezoneDetect;
class TimezoneDetectTest extends BaseTestCase
{
public function testPositiveTimezoneOffsetSeparatedByComma()
{
$this->assertTimezoneDetection('3600,0', 'Europe/Paris');
}
public function testPositiveTimezoneOffsetSeparatedByHyphen()
{
$this->assertTimezoneDetection('3600-0', 'Europe/Paris');
}
public function testNegativeTimezoneOffsetSeparatedByComma()
{
$this->assertTimezoneDetection('-3600,0', 'Atlantic/Azores');
}
public function testNegativeTimezoneOffsetSeparatedByHyphen()
{
$this->assertTimezoneDetection('-3600-0', 'Atlantic/Azores');
}
protected function assertTimezoneDetection($cookieValue, $expectedTimezoneName)
public function testInvalidTimezoneNameInCookie(): void
{
$tzDetect = new TimezoneDetect();
$tzDetect->reset();
$_COOKIE[TimezoneDetect::$cookieName] = $cookieValue;
$_COOKIE[TimezoneDetect::$cookieName] = 'ABC';
$tzDetect = new TimezoneDetect();
$this->assertFalse(
$tzDetect->success(),
false,
'Failed to assert invalid timezone name is detected'
);
$this->assertNull(
$tzDetect->getTimezoneName(),
'Failed to assert that the timezone name will not be set for invalid timezone'
);
}
public function testValidTimezoneNameInCookie(): void
{
$tzDetect = new TimezoneDetect();
$tzDetect->reset();
$_COOKIE[TimezoneDetect::$cookieName] = "Europe/Berlin";
$tzDetect = new TimezoneDetect();
$this->assertTrue(
$tzDetect->success(),
true,
'Failed to assert that the valid timezone name is detected'
);
$this->assertSame(
$tzDetect->getTimezoneName(),
$expectedTimezoneName,
'Failed asserting that the timezone "' . $expectedTimezoneName
. '" is being detected from the cookie value "' . $cookieValue . '"'
"Europe/Berlin",
'Failed to assert that the valid timezone name was correctly set'
);
}
}