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feat: allow dates before 1970 #57018

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feat: allow dates before 1970 #57018

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1 change: 1 addition & 0 deletions apps/dav/composer/composer/autoload_classmap.php
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Original file line number Diff line number Diff line change
Expand Up @@ -414,6 +414,7 @@
'OCA\\DAV\\Migration\\Version1038Date20260302000000' => $baseDir . '/../lib/Migration/Version1038Date20260302000000.php',
'OCA\\DAV\\Migration\\Version1039Date20260408000000' => $baseDir . '/../lib/Migration/Version1039Date20260408000000.php',
'OCA\\DAV\\Migration\\Version1040Date20260805000000' => $baseDir . '/../lib/Migration/Version1040Date20260805000000.php',
'OCA\\DAV\\Migration\\Version1041Date20260818000000' => $baseDir . '/../lib/Migration/Version1041Date20260818000000.php',
'OCA\\DAV\\Model\\ExampleEvent' => $baseDir . '/../lib/Model/ExampleEvent.php',
'OCA\\DAV\\Paginate\\LimitedCopyIterator' => $baseDir . '/../lib/Paginate/LimitedCopyIterator.php',
'OCA\\DAV\\Paginate\\PaginateCache' => $baseDir . '/../lib/Paginate/PaginateCache.php',
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5 changes: 3 additions & 2 deletions apps/dav/composer/composer/autoload_static.php
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Original file line number Diff line number Diff line change
Expand Up @@ -7,14 +7,14 @@
class ComposerStaticInitDAV
{
public static $prefixLengthsPsr4 = array (
'O' =>
'O' =>
array (
'OCA\\DAV\\' => 8,
),
);

public static $prefixDirsPsr4 = array (
'OCA\\DAV\\' =>
'OCA\\DAV\\' =>
array (
0 => __DIR__ . '/..' . '/../lib',
),
Expand Down Expand Up @@ -429,6 +429,7 @@ class ComposerStaticInitDAV
'OCA\\DAV\\Migration\\Version1038Date20260302000000' => __DIR__ . '/..' . '/../lib/Migration/Version1038Date20260302000000.php',
'OCA\\DAV\\Migration\\Version1039Date20260408000000' => __DIR__ . '/..' . '/../lib/Migration/Version1039Date20260408000000.php',
'OCA\\DAV\\Migration\\Version1040Date20260805000000' => __DIR__ . '/..' . '/../lib/Migration/Version1040Date20260805000000.php',
'OCA\\DAV\\Migration\\Version1041Date20260818000000' => __DIR__ . '/..' . '/../lib/Migration/Version1041Date20260818000000.php',
'OCA\\DAV\\Model\\ExampleEvent' => __DIR__ . '/..' . '/../lib/Model/ExampleEvent.php',
'OCA\\DAV\\Paginate\\LimitedCopyIterator' => __DIR__ . '/..' . '/../lib/Paginate/LimitedCopyIterator.php',
'OCA\\DAV\\Paginate\\PaginateCache' => __DIR__ . '/..' . '/../lib/Paginate/PaginateCache.php',
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6 changes: 3 additions & 3 deletions apps/dav/lib/CalDAV/CalDavBackend.php
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Original file line number Diff line number Diff line change
Expand Up @@ -3487,9 +3487,9 @@ public function getDenormalizedData(string $calendarData): array {
}
}
}
// convert dates to timestamp and prevent negative values
$derived['firstOccurence'] = $startDate ? max(0, $startDate->getTimestamp()) : 0;
$derived['lastOccurence'] = $endDate ? max(0, $endDate->getTimestamp()) : 0;
// convert dates to timestamp
$derived['firstOccurence'] = $startDate ? $startDate->getTimestamp() : 0;
$derived['lastOccurence'] = $endDate ? $endDate->getTimestamp() : 0;

return $derived;
}
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47 changes: 47 additions & 0 deletions apps/dav/lib/Migration/Version1041Date20260818000000.php
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Original file line number Diff line number Diff line change
@@ -0,0 +1,47 @@
<?php

declare(strict_types=1);

/**
* SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/

namespace OCA\DAV\Migration;

use Closure;
use OCP\DB\ISchemaWrapper;
use OCP\Migration\Attributes\ModifyColumn;
use OCP\Migration\IOutput;
use OCP\Migration\SimpleMigrationStep;
use Override;

#[ModifyColumn(table: 'calendarobjects', name: 'firstoccurence', description: 'Change firstoccurence to signed to allow dates before the unix epoch')]
#[ModifyColumn(table: 'calendarobjects', name: 'lastoccurence', description: 'Change lastoccurence to signed to allow dates before the unix epoch')]
class Version1041Date20260818000000 extends SimpleMigrationStep {
/**
* @param Closure(): ISchemaWrapper $schemaClosure
*/
#[Override]
public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
/** @var ISchemaWrapper $schema */
$schema = $schemaClosure();
$modified = false;

$table = $schema->getTable('calendarobjects');

$column = $table->getColumn('firstoccurence');
if ($column->getUnsigned()) {
$column->setUnsigned(false);
$modified = true;
}

$column = $table->getColumn('lastoccurence');
if ($column->getUnsigned()) {
$column->setUnsigned(false);
$modified = true;
}

return $modified ? $schema : null;
}
}
4 changes: 2 additions & 2 deletions apps/dav/tests/unit/CalDAV/CalDavBackendTest.php
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Original file line number Diff line number Diff line change
Expand Up @@ -835,12 +835,12 @@ public function testGetDenormalizedData($expected, $key, $calData): void {

public static function providesCalDataForGetDenormalizedData(): array {
return [
'first occurrence before unix epoch starts' => [0, 'firstOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nUID:413F269B-B51B-46B1-AFB6-40055C53A4DC\r\nDTSTAMP:20160309T095056Z\r\nDTSTART;VALUE=DATE:16040222\r\nDTEND;VALUE=DATE:16040223\r\nRRULE:FREQ=YEARLY\r\nSUMMARY:SUMMARY\r\nTRANSP:TRANSPARENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],
'first occurrence before unix epoch starts' => [(new DateTime('1604-02-22'))->getTimestamp(), 'firstOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nUID:413F269B-B51B-46B1-AFB6-40055C53A4DC\r\nDTSTAMP:20160309T095056Z\r\nDTSTART;VALUE=DATE:16040222\r\nDTEND;VALUE=DATE:16040223\r\nRRULE:FREQ=YEARLY\r\nSUMMARY:SUMMARY\r\nTRANSP:TRANSPARENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],
'no first occurrence because yearly' => [null, 'firstOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.1.1//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nUID:413F269B-B51B-46B1-AFB6-40055C53A4DC\r\nDTSTAMP:20160309T095056Z\r\nRRULE:FREQ=YEARLY\r\nSUMMARY:SUMMARY\r\nTRANSP:TRANSPARENT\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],

'last occurrence is max when only last VEVENT in group is weekly' => [(new DateTime(CalDavBackend::MAX_DATE))->getTimestamp(), 'lastOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.3.0//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nDTSTART;TZID=America/Los_Angeles:20200812T103000\r\nDTEND;TZID=America/Los_Angeles:20200812T110000\r\nDTSTAMP:20200927T180638Z\r\nUID:asdfasdfasdf@google.com\r\nRECURRENCE-ID;TZID=America/Los_Angeles:20200811T123000\r\nCREATED:20200626T181848Z\r\nLAST-MODIFIED:20200922T192707Z\r\nSUMMARY:Weekly 1:1\r\nTRANSP:OPAQUE\r\nEND:VEVENT\r\nBEGIN:VEVENT\r\nDTSTART;TZID=America/Los_Angeles:20200728T123000\r\nDTEND;TZID=America/Los_Angeles:20200728T130000\r\nEXDATE;TZID=America/Los_Angeles:20200818T123000\r\nRRULE:FREQ=WEEKLY;BYDAY=TU\r\nDTSTAMP:20200927T180638Z\r\nUID:asdfasdfasdf@google.com\r\nCREATED:20200626T181848Z\r\nDESCRIPTION:Setting up recurring time on our calendars\r\nLAST-MODIFIED:20200922T192707Z\r\nSUMMARY:Weekly 1:1\r\nTRANSP:OPAQUE\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],

'last occurrence before unix epoch starts' => [0, 'lastOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.3.0//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:19110324\r\nDTEND;VALUE=DATE:19110325\r\nDTSTAMP:20200927T180638Z\r\nUID:asdfasdfasdf@google.com\r\nCREATED:20200626T181848Z\r\nDESCRIPTION:Very old event\r\nLAST-MODIFIED:20200922T192707Z\r\nSUMMARY:Some old event\r\nTRANSP:OPAQUE\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],
'last occurrence before unix epoch starts' => [(new DateTime('1911-03-25'))->getTimestamp(), 'lastOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.3.0//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nDTSTART;VALUE=DATE:19110324\r\nDTEND;VALUE=DATE:19110325\r\nDTSTAMP:20200927T180638Z\r\nUID:asdfasdfasdf@google.com\r\nCREATED:20200626T181848Z\r\nDESCRIPTION:Very old event\r\nLAST-MODIFIED:20200922T192707Z\r\nSUMMARY:Some old event\r\nTRANSP:OPAQUE\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],

'first occurrence is found when not first VEVENT in group' => [(new DateTime('2020-09-01T110000', new DateTimeZone('America/Los_Angeles')))->getTimestamp(), 'firstOccurence', "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:-//Sabre//Sabre VObject 4.3.0//EN\r\nCALSCALE:GREGORIAN\r\nBEGIN:VEVENT\r\nDTSTART;TZID=America/Los_Angeles:20201013T110000\r\nDTEND;TZID=America/Los_Angeles:20201013T120000\r\nDTSTAMP:20200927T180638Z\r\nUID:asdf0000@google.com\r\nRECURRENCE-ID;TZID=America/Los_Angeles:20201013T110000\r\nCREATED:20160330T034726Z\r\nLAST-MODIFIED:20200925T042014Z\r\nSTATUS:CONFIRMED\r\nTRANSP:OPAQUE\r\nEND:VEVENT\r\nBEGIN:VEVENT\r\nDTSTART;TZID=America/Los_Angeles:20200901T110000\r\nDTEND;TZID=America/Los_Angeles:20200901T120000\r\nRRULE:FREQ=WEEKLY;BYDAY=TU\r\nEXDATE;TZID=America/Los_Angeles:20200922T110000\r\nEXDATE;TZID=America/Los_Angeles:20200915T110000\r\nEXDATE;TZID=America/Los_Angeles:20200908T110000\r\nDTSTAMP:20200927T180638Z\r\nUID:asdf0000@google.com\r\nCREATED:20160330T034726Z\r\nLAST-MODIFIED:20200915T162810Z\r\nSTATUS:CONFIRMED\r\nTRANSP:OPAQUE\r\nEND:VEVENT\r\nEND:VCALENDAR\r\n"],

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