update sabre/dav

30 files changed, 248 insertions, 364 deletions

diff --git a/vendor/composer/autoload_classmap.php b/vendor/composer/autoload_classmap.php
index 2e35ba1e8..440144d89 100644
--- a/vendor/composer/autoload_classmap.php
+++ b/vendor/composer/autoload_classmap.php
@@ -728,6 +728,7 @@ return array(
     'Sabre\\DAV\\IMoveTarget' => $vendorDir . '/sabre/dav/lib/DAV/IMoveTarget.php',
     'Sabre\\DAV\\IMultiGet' => $vendorDir . '/sabre/dav/lib/DAV/IMultiGet.php',
     'Sabre\\DAV\\INode' => $vendorDir . '/sabre/dav/lib/DAV/INode.php',
+    'Sabre\\DAV\\INodeByPath' => $vendorDir . '/sabre/dav/lib/DAV/INodeByPath.php',
     'Sabre\\DAV\\IProperties' => $vendorDir . '/sabre/dav/lib/DAV/IProperties.php',
     'Sabre\\DAV\\IQuota' => $vendorDir . '/sabre/dav/lib/DAV/IQuota.php',
     'Sabre\\DAV\\Locks\\Backend\\AbstractBackend' => $vendorDir . '/sabre/dav/lib/DAV/Locks/Backend/AbstractBackend.php',
diff --git a/vendor/composer/autoload_psr4.php b/vendor/composer/autoload_psr4.php
index 5208f3328..ceeb74ea9 100644
--- a/vendor/composer/autoload_psr4.php
+++ b/vendor/composer/autoload_psr4.php
@@ -18,10 +18,7 @@ return array(
     'Sabre\\Uri\\' => array($vendorDir . '/sabre/uri/lib'),
     'Sabre\\HTTP\\' => array($vendorDir . '/sabre/http/lib'),
     'Sabre\\Event\\' => array($vendorDir . '/sabre/event/lib'),
-    'Sabre\\DAV\\' => array($vendorDir . '/sabre/dav/lib/DAV'),
-    'Sabre\\DAVACL\\' => array($vendorDir . '/sabre/dav/lib/DAVACL'),
-    'Sabre\\CardDAV\\' => array($vendorDir . '/sabre/dav/lib/CardDAV'),
-    'Sabre\\CalDAV\\' => array($vendorDir . '/sabre/dav/lib/CalDAV'),
+    'Sabre\\' => array($vendorDir . '/sabre/dav/lib'),
     'Ramsey\\Uuid\\' => array($vendorDir . '/ramsey/uuid/src'),
     'Ramsey\\Collection\\' => array($vendorDir . '/ramsey/collection/src'),
     'Psr\\Log\\' => array($vendorDir . '/psr/log/src'),
diff --git a/vendor/composer/autoload_static.php b/vendor/composer/autoload_static.php
index 51d669fe5..a92f1e058 100644
--- a/vendor/composer/autoload_static.php
+++ b/vendor/composer/autoload_static.php
@@ -47,10 +47,7 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
             'Sabre\\Uri\\' => 10,
             'Sabre\\HTTP\\' => 11,
             'Sabre\\Event\\' => 12,
-            'Sabre\\DAV\\' => 10,
-            'Sabre\\DAVACL\\' => 13,
-            'Sabre\\CardDAV\\' => 14,
-            'Sabre\\CalDAV\\' => 13,
+            'Sabre\\' => 6,
         ),
         'R' => 
         array (
@@ -143,21 +140,9 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         array (
             0 => __DIR__ . '/..' . '/sabre/event/lib',
         ),
-        'Sabre\\DAV\\' => 
+        'Sabre\\' => 
         array (
-            0 => __DIR__ . '/..' . '/sabre/dav/lib/DAV',
-        ),
-        'Sabre\\DAVACL\\' => 
-        array (
-            0 => __DIR__ . '/..' . '/sabre/dav/lib/DAVACL',
-        ),
-        'Sabre\\CardDAV\\' => 
-        array (
-            0 => __DIR__ . '/..' . '/sabre/dav/lib/CardDAV',
-        ),
-        'Sabre\\CalDAV\\' => 
-        array (
-            0 => __DIR__ . '/..' . '/sabre/dav/lib/CalDAV',
+            0 => __DIR__ . '/..' . '/sabre/dav/lib',
         ),
         'Ramsey\\Uuid\\' => 
         array (
@@ -970,6 +955,7 @@ class ComposerStaticInit7b34d7e50a62201ec5d5e526a5b8b35d
         'Sabre\\DAV\\IMoveTarget' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/IMoveTarget.php',
         'Sabre\\DAV\\IMultiGet' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/IMultiGet.php',
         'Sabre\\DAV\\INode' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/INode.php',
+        'Sabre\\DAV\\INodeByPath' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/INodeByPath.php',
         'Sabre\\DAV\\IProperties' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/IProperties.php',
         'Sabre\\DAV\\IQuota' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/IQuota.php',
         'Sabre\\DAV\\Locks\\Backend\\AbstractBackend' => __DIR__ . '/..' . '/sabre/dav/lib/DAV/Locks/Backend/AbstractBackend.php',
diff --git a/vendor/composer/installed.json b/vendor/composer/installed.json
index 6d0e1d50f..164876320 100644
--- a/vendor/composer/installed.json
+++ b/vendor/composer/installed.json
@@ -1282,17 +1282,17 @@
         },
         {
             "name": "sabre/dav",
-            "version": "4.4.0",
-            "version_normalized": "4.4.0.0",
+            "version": "4.6.0",
+            "version_normalized": "4.6.0.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sabre-io/dav.git",
-                "reference": "b65362abc926520eda2c57e219f022a6c288069d"
+                "reference": "554145304b4a026477d130928d16e626939b0b2a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sabre-io/dav/zipball/b65362abc926520eda2c57e219f022a6c288069d",
-                "reference": "b65362abc926520eda2c57e219f022a6c288069d",
+                "url": "https://api.github.com/repos/sabre-io/dav/zipball/554145304b4a026477d130928d16e626939b0b2a",
+                "reference": "554145304b4a026477d130928d16e626939b0b2a",
                 "shasum": ""
             },
             "require": {
@@ -1315,18 +1315,18 @@
                 "sabre/xml": "^2.0.1"
             },
             "require-dev": {
-                "evert/phpdoc-md": "~0.1.0",
-                "friendsofphp/php-cs-fixer": "^2.17.1",
-                "monolog/monolog": "^1.18",
-                "phpstan/phpstan": "^0.12",
-                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.0"
+                "friendsofphp/php-cs-fixer": "^2.19",
+                "monolog/monolog": "^1.27 || ^2.0",
+                "phpstan/phpstan": "^0.12 || ^1.0",
+                "phpstan/phpstan-phpunit": "^1.0",
+                "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
             },
             "suggest": {
                 "ext-curl": "*",
                 "ext-imap": "*",
                 "ext-pdo": "*"
             },
-            "time": "2022-06-27T09:07:55+00:00",
+            "time": "2023-12-11T13:01:23+00:00",
             "bin": [
                 "bin/sabredav",
                 "bin/naturalselection"
@@ -1335,10 +1335,7 @@
             "installation-source": "dist",
             "autoload": {
                 "psr-4": {
-                    "Sabre\\DAV\\": "lib/DAV/",
-                    "Sabre\\CalDAV\\": "lib/CalDAV/",
-                    "Sabre\\DAVACL\\": "lib/DAVACL/",
-                    "Sabre\\CardDAV\\": "lib/CardDAV/"
+                    "Sabre\\": "lib/"
                 }
             },
             "notification-url": "https://packagist.org/downloads/",
diff --git a/vendor/composer/installed.php b/vendor/composer/installed.php
index 8f84c2b16..c938e924b 100644
--- a/vendor/composer/installed.php
+++ b/vendor/composer/installed.php
@@ -3,7 +3,7 @@
         'name' => 'zotlabs/hubzilla',
         'pretty_version' => 'dev-master',
         'version' => 'dev-master',
-        'reference' => '0092b7c0a4d6cf49c092e2232af63f87be63142b',
+        'reference' => 'dff906ca69efbb8ae18e9954ec7a937e36b50308',
         'type' => 'application',
         'install_path' => __DIR__ . '/../../',
         'aliases' => array(),
@@ -188,9 +188,9 @@
             ),
         ),
         'sabre/dav' => array(
-            'pretty_version' => '4.4.0',
-            'version' => '4.4.0.0',
-            'reference' => 'b65362abc926520eda2c57e219f022a6c288069d',
+            'pretty_version' => '4.6.0',
+            'version' => '4.6.0.0',
+            'reference' => '554145304b4a026477d130928d16e626939b0b2a',
             'type' => 'library',
             'install_path' => __DIR__ . '/../sabre/dav',
             'aliases' => array(),
@@ -313,7 +313,7 @@
         'zotlabs/hubzilla' => array(
             'pretty_version' => 'dev-master',
             'version' => 'dev-master',
-            'reference' => '0092b7c0a4d6cf49c092e2232af63f87be63142b',
+            'reference' => 'dff906ca69efbb8ae18e9954ec7a937e36b50308',
             'type' => 'application',
             'install_path' => __DIR__ . '/../../',
             'aliases' => array(),
diff --git a/vendor/sabre/dav/.github/workflows/ci.yml b/vendor/sabre/dav/.github/workflows/ci.yml
deleted file mode 100644
index f41b38535..000000000
--- a/vendor/sabre/dav/.github/workflows/ci.yml
+++ /dev/null
@@ -1,127 +0,0 @@
-name: continuous-integration
-on:
-  push:
-    branches:
-      - master
-      - release/*
-  pull_request:
-
-jobs:
-  code-analysis:
-    runs-on: ubuntu-latest
-    name: Code Analysis (PHP ${{ matrix.php-versions }})
-    strategy:
-      fail-fast: false
-      matrix:
-        php-versions: [ '7.4' ]
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Setup PHP, with composer and extensions
-        uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php
-        with:
-          php-version: ${{ matrix.php-versions }}
-          extensions: mbstring, dom, fileinfo, mysql, redis, opcache
-          tools: composer
-
-      - name: Get composer cache directory
-        id: composer-cache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
-
-      - name: Cache composer dependencies
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.composer-cache.outputs.dir }}
-          # Use composer.json for key, if composer.lock is not committed.
-          # key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: ${{ runner.os }}-composer-
-
-      - name: Install Composer dependencies
-        run: composer install --no-progress --prefer-dist --optimize-autoloader
-
-      - name: PHP CS-Fixer
-        run: php vendor/bin/php-cs-fixer fix --dry-run --diff
-
-      - name: PHPStan
-        run: composer phpstan
-
-  unit-testing:
-    name: PHPUnit (PHP ${{ matrix.php-versions }})
-    runs-on: ubuntu-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        php-versions: [ '7.1', '7.2', '7.3', '7.4', '8.0' ]
-        coverage: [ 'none' ]
-        streaming: [ false ]
-        include:
-          - php-versions: '8.1'
-            coverage: 'pcov'
-            streaming: true
-
-    services:
-      mariadb:
-        image: mariadb
-        env:
-          MARIADB_DATABASE: 'sabredav_test'
-          MARIADB_ROOT_PASSWORD: root
-        ports:
-          - 3306:3306
-      postgres:
-        image: postgres
-        env:
-          POSTGRES_DB: 'sabredav_test'
-          POSTGRES_PASSWORD: postgres
-        ports:
-          - 5432:5432
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v2
-
-      - name: Setup PHP, with composer and extensions
-        uses: shivammathur/setup-php@v2 #https://github.com/shivammathur/setup-php
-        with:
-          php-version: ${{ matrix.php-versions }}
-          extensions: mbstring, dom, fileinfo, pdo_sqlite, pgsql, mysql, redis, opcache
-          coverage: ${{ matrix.coverage }}
-          tools: composer
-
-      - name: Get composer cache directory
-        id: composer-cache
-        run: echo "::set-output name=dir::$(composer config cache-files-dir)"
-
-      - name: Cache composer dependencies
-        uses: actions/cache@v2
-        with:
-          path: ${{ steps.composer-cache.outputs.dir }}
-          # Use composer.json for key, if composer.lock is not committed.
-          # key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
-          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
-          restore-keys: ${{ runner.os }}-composer-
-
-      - name: Install Composer dependencies
-        run: composer install --no-progress --prefer-dist --optimize-autoloader
-
-      - name: PHPUnit
-        if: matrix.streaming == false
-        run: vendor/bin/phpunit --verbose --configuration tests/phpunit.xml --coverage-clover=coverage.xml
-        env:
-          SABRE_MYSQLUSER: root
-          SABRE_MYSQLPASS: root
-          SABRE_MYSQLDSN: "mysql:host=127.0.0.1;port=3306;dbname=sabredav_test"
-          SABRE_PGSQLDSN: "pgsql:host=127.0.0.1;port=5432;dbname=sabredav_test;user=postgres;password=postgres"
-
-      - name: PHPUnit (with streaming)
-        if: matrix.streaming == true
-        run: vendor/bin/phpunit --verbose --configuration tests/phpunit.xml --coverage-clover=coverage.xml
-        env:
-          SABRE_MYSQLUSER: root
-          SABRE_MYSQLPASS: root
-          SABRE_MYSQLDSN: "mysql:host=127.0.0.1;port=3306;dbname=sabredav_test"
-          SABRE_PGSQLDSN: "pgsql:host=127.0.0.1;port=5432;dbname=sabredav_test;user=postgres;password=postgres"
-          RUN_TEST_WITH_STREAMING_PROPFIND: "true"
-
-      - uses: codecov/codecov-action@v2
-        if: matrix.coverage != 'none'
diff --git a/vendor/sabre/dav/.php_cs.dist b/vendor/sabre/dav/.php_cs.dist
deleted file mode 100644
index c5c78a971..000000000
--- a/vendor/sabre/dav/.php_cs.dist
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-$config = PhpCsFixer\Config::create();
-$config->getFinder()
-    ->exclude('vendor')
-    ->in(__DIR__);
-$config->setRules([
-    '@PSR1' => true,
-    '@Symfony' => true
-]);
-
-return $config;
\ No newline at end of file
diff --git a/vendor/sabre/dav/.travis.yml b/vendor/sabre/dav/.travis.yml
deleted file mode 100644
index 6214d80b3..000000000
--- a/vendor/sabre/dav/.travis.yml
+++ /dev/null
@@ -1,73 +0,0 @@
-language: php
-sudo: required
-
-branches:
-  only:
-    - master
-
-php:
-  - 7.1
-  - 7.2
-  - 7.3
-  - 7.4
-
-env:
-  global:
-    - SABRE_MYSQLUSER="root"
-    - SABRE_MYSQLPASS=""
-    - SABRE_MYSQLDSN="mysql:host=127.0.0.1;dbname=sabredav_test"
-    - RUN_PHPCSFIXER="TRUE"
-    - RUN_PHPUNIT="TRUE"
-    - RUN_PHPSTAN="FALSE"
-  matrix:
-    - PREFER_LOWEST="" TEST_DEPS="" REPORT_COVERAGE="TRUE" WITH_COVERAGE="--coverage-clover=coverage.xml"
-    - PREFER_LOWEST="--prefer-lowest" TEST_DEPS="tests/Sabre/" REPORT_COVERAGE="FALSE" WITH_COVERAGE=""
-
-matrix:
-  include:
-    - name: 'PHP8'
-      dist: bionic
-      php: 8.0
-      env:
-        - RUN_PHPCSFIXER="FALSE"
-        - REPORT_COVERAGE="FALSE"
-    - name: 'PHPStan'
-      php: 7.4
-      env:
-        - RUN_PHPCSFIXER="FALSE"
-        - RUN_PHPUNIT="FALSE"
-        - RUN_PHPSTAN="TRUE"
-        - REPORT_COVERAGE="FALSE"
-    - name: 'Test with streaming propfind'
-      php: 7.2
-      env:
-        - RUN_TEST_WITH_STREAMING_PROPFIND="TRUE"
-        - REPORT_COVERAGE="FALSE"
-  fast_finish: true
-
-services:
-  - mysql
-  - postgresql
-
-before_script:
-  - mysql -u root -h 127.0.0.1 -e 'create database sabredav_test'
-  - psql -c "create database sabredav_test" -U postgres
-  - psql -c "create user sabredav with PASSWORD 'sabredav';GRANT ALL PRIVILEGES ON DATABASE sabredav_test TO sabredav" -U postgres
-  - if [ $RUN_PHPCSFIXER == "FALSE" ]; then composer remove --no-update --dev friendsofphp/php-cs-fixer; fi
-  - composer update $PREFER_LOWEST
-
-addons:
-  postgresql: "9.5"
-
-script:
-  - if [ $RUN_PHPCSFIXER == "TRUE" ]; then php vendor/bin/php-cs-fixer fix --dry-run --diff; fi
-  - if [ $RUN_PHPUNIT == "TRUE" ]; then php vendor/bin/phpunit --configuration tests/phpunit.xml $WITH_COVERAGE $TEST_DEPS; fi
-  - if [ $RUN_PHPUNIT == "TRUE"  ]; then rm -f ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/xdebug.ini; fi
-  - if [ $RUN_PHPSTAN == "TRUE" ]; then composer phpstan; fi
-
-after_success:
-  - if [ $REPORT_COVERAGE == "TRUE" ]; then bash <(curl -s https://codecov.io/bash); fi
-
-cache:
-  directories:
-    - $HOME/.composer/cache
diff --git a/vendor/sabre/dav/composer.json b/vendor/sabre/dav/composer.json
index 5f0a44d66..315417339 100644
--- a/vendor/sabre/dav/composer.json
+++ b/vendor/sabre/dav/composer.json
@@ -33,11 +33,11 @@
         "ext-json": "*"
     },
     "require-dev" : {
-        "friendsofphp/php-cs-fixer": "^2.17.1",
-        "phpstan/phpstan": "^0.12",
-        "phpunit/phpunit" : "^7.5 || ^8.5 || ^9.0",
-        "evert/phpdoc-md" : "~0.1.0",
-        "monolog/monolog": "^1.18"
+        "friendsofphp/php-cs-fixer": "^2.19",
+        "monolog/monolog": "^1.27 || ^2.0",
+        "phpstan/phpstan": "^0.12 || ^1.0",
+        "phpstan/phpstan-phpunit": "^1.0",
+        "phpunit/phpunit": "^7.5 || ^8.5 || ^9.6"
     },
     "suggest" : {
         "ext-curl" : "*",
@@ -46,21 +46,12 @@
     },
     "autoload": {
         "psr-4" : {
-            "Sabre\\DAV\\"     : "lib/DAV/",
-            "Sabre\\DAVACL\\"  : "lib/DAVACL/",
-            "Sabre\\CalDAV\\"  : "lib/CalDAV/",
-            "Sabre\\CardDAV\\" : "lib/CardDAV/"
+            "Sabre\\" : "lib/"
         }
     },
     "autoload-dev" : {
         "psr-4" : {
-            "Sabre\\" : "tests/Sabre/",
-            "Sabre\\CalDAV\\" : "tests/Sabre/CalDAV",
-            "Sabre\\CardDAV\\" : "tests/Sabre/CardDAV",
-            "Sabre\\DAV\\" : "tests/Sabre/DAV",
-            "Sabre\\DAV\\Property\\" : "tests/Sabre/DAV/Xml/Property",
-            "Sabre\\DAVACL\\" : "tests/Sabre/DAVACL",
-            "Sabre\\HTTP\\" : "tests/Sabre/HTTP"
+            "Sabre\\" : "tests/Sabre/"
         }
     },
     "support" : {
diff --git a/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php b/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
index c32c86489..c761bff51 100644
--- a/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
+++ b/vendor/sabre/dav/lib/CalDAV/Backend/AbstractBackend.php
@@ -78,7 +78,7 @@ abstract class AbstractBackend implements BackendInterface
      *
      * This default may well be good enough for personal use, and calendars
      * that aren't very large. But if you anticipate high usage, big calendars
-     * or high loads, you are strongly adviced to optimize certain paths.
+     * or high loads, you are strongly advised to optimize certain paths.
      *
      * The best way to do so is override this method and to optimize
      * specifically for 'common filters'.
@@ -95,7 +95,7 @@ abstract class AbstractBackend implements BackendInterface
      * Note that especially time-range-filters may be difficult to parse. A
      * time-range filter specified on a VEVENT must for instance also handle
      * recurrence rules correctly.
-     * A good example of how to interprete all these filters can also simply
+     * A good example of how to interpret all these filters can also simply
      * be found in \Sabre\CalDAV\CalendarQueryFilter. This class is as correct
      * as possible, so it gives you a good idea on what type of stuff you need
      * to think of.
diff --git a/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php b/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
index 2f48ab982..b9f112cf8 100644
--- a/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
+++ b/vendor/sabre/dav/lib/CalDAV/Backend/PDO.php
@@ -939,7 +939,7 @@ SQL;
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null)
     {
diff --git a/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php b/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
index c7f67d176..bfc1dafc2 100644
--- a/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
+++ b/vendor/sabre/dav/lib/CalDAV/Backend/SyncSupport.php
@@ -77,7 +77,7 @@ interface SyncSupport extends BackendInterface
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChangesForCalendar($calendarId, $syncToken, $syncLevel, $limit = null);
 }
diff --git a/vendor/sabre/dav/lib/CalDAV/Calendar.php b/vendor/sabre/dav/lib/CalDAV/Calendar.php
index 6e989314d..6c0bf5411 100644
--- a/vendor/sabre/dav/lib/CalDAV/Calendar.php
+++ b/vendor/sabre/dav/lib/CalDAV/Calendar.php
@@ -186,17 +186,17 @@ class Calendar implements ICalendar, DAV\IProperties, DAV\Sync\ISyncCollection,
      * The contents of the new file must be a valid ICalendar string.
      *
      * @param string   $name
-     * @param resource $calendarData
+     * @param resource $data
      *
      * @return string|null
      */
-    public function createFile($name, $calendarData = null)
+    public function createFile($name, $data = null)
     {
-        if (is_resource($calendarData)) {
-            $calendarData = stream_get_contents($calendarData);
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
         }
 
-        return $this->caldavBackend->createCalendarObject($this->calendarInfo['id'], $name, $calendarData);
+        return $this->caldavBackend->createCalendarObject($this->calendarInfo['id'], $name, $data);
     }
 
     /**
@@ -442,7 +442,7 @@ class Calendar implements ICalendar, DAV\IProperties, DAV\Sync\ISyncCollection,
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChanges($syncToken, $syncLevel, $limit = null)
     {
diff --git a/vendor/sabre/dav/lib/CalDAV/CalendarHome.php b/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
index 159ddcc67..49c54a37a 100644
--- a/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
+++ b/vendor/sabre/dav/lib/CalDAV/CalendarHome.php
@@ -96,10 +96,10 @@ class CalendarHome implements DAV\IExtendedCollection, DAVACL\IACL
      *
      * This is currently not allowed
      *
-     * @param string   $filename
+     * @param string   $name
      * @param resource $data
      */
-    public function createFile($filename, $data = null)
+    public function createFile($name, $data = null)
     {
         throw new DAV\Exception\MethodNotAllowed('Creating new files in this collection is not supported');
     }
diff --git a/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php b/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php
index e050ac273..dcaf951ef 100644
--- a/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php
+++ b/vendor/sabre/dav/lib/CalDAV/Schedule/IMipPlugin.php
@@ -31,13 +31,6 @@ class IMipPlugin extends DAV\ServerPlugin
     protected $senderEmail;
 
     /**
-     * ITipMessage.
-     *
-     * @var ITip\Message
-     */
-    protected $itipMessage;
-
-    /**
      * Creates the email handler.
      *
      * @param string $senderEmail. The 'senderEmail' is the email that shows up
diff --git a/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php b/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php
index 3cc360f1d..5e5659610 100644
--- a/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php
+++ b/vendor/sabre/dav/lib/CalDAV/Schedule/Plugin.php
@@ -605,10 +605,9 @@ class Plugin extends ServerPlugin
      *
      * This method may update $newObject to add any status changes.
      *
-     * @param VCalendar|string $oldObject
-     * @param array            $ignore    any addresses to not send messages to
-     * @param bool             $modified  a marker to indicate that the original object
-     *                                    modified by this process
+     * @param VCalendar|string|null $oldObject
+     * @param array                 $ignore    any addresses to not send messages to
+     * @param bool                  $modified  a marker to indicate that the original object modified by this process
      */
     protected function processICalendarChange($oldObject, VCalendar $newObject, array $addresses, array $ignore = [], &$modified = false)
     {
@@ -969,7 +968,7 @@ class Plugin extends ServerPlugin
      *
      * @return bool
      */
-    private function scheduleReply(RequestInterface $request)
+    protected function scheduleReply(RequestInterface $request)
     {
         $scheduleReply = $request->getHeader('Schedule-Reply');
 
diff --git a/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php b/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php
index c9a3cb5ac..f1d66cc0d 100644
--- a/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php
+++ b/vendor/sabre/dav/lib/CalDAV/Xml/Filter/PropFilter.php
@@ -53,7 +53,7 @@ class PropFilter implements XmlDeserializable
             'is-not-defined' => false,
             'param-filters' => [],
             'text-match' => null,
-            'time-range' => false,
+            'time-range' => [],
         ];
 
         $att = $reader->parseAttributes();
diff --git a/vendor/sabre/dav/lib/CardDAV/AddressBook.php b/vendor/sabre/dav/lib/CardDAV/AddressBook.php
index 86994f2d5..f5744f644 100644
--- a/vendor/sabre/dav/lib/CardDAV/AddressBook.php
+++ b/vendor/sabre/dav/lib/CardDAV/AddressBook.php
@@ -129,19 +129,19 @@ class AddressBook extends DAV\Collection implements IAddressBook, DAV\IPropertie
      * This method may return an ETag.
      *
      * @param string   $name
-     * @param resource $vcardData
+     * @param resource $data
      *
      * @return string|null
      */
-    public function createFile($name, $vcardData = null)
+    public function createFile($name, $data = null)
     {
-        if (is_resource($vcardData)) {
-            $vcardData = stream_get_contents($vcardData);
+        if (is_resource($data)) {
+            $data = stream_get_contents($data);
         }
         // Converting to UTF-8, if needed
-        $vcardData = DAV\StringUtil::ensureUTF8($vcardData);
+        $data = DAV\StringUtil::ensureUTF8($data);
 
-        return $this->carddavBackend->createCard($this->addressBookInfo['id'], $name, $vcardData);
+        return $this->carddavBackend->createCard($this->addressBookInfo['id'], $name, $data);
     }
 
     /**
@@ -317,7 +317,7 @@ class AddressBook extends DAV\Collection implements IAddressBook, DAV\IPropertie
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChanges($syncToken, $syncLevel, $limit = null)
     {
diff --git a/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php b/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php
index 884e9b24e..d7365fbe8 100644
--- a/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php
+++ b/vendor/sabre/dav/lib/CardDAV/AddressBookHome.php
@@ -92,10 +92,10 @@ class AddressBookHome extends DAV\Collection implements DAV\IExtendedCollection,
      *
      * This is currently not allowed
      *
-     * @param string   $filename
+     * @param string   $name
      * @param resource $data
      */
-    public function createFile($filename, $data = null)
+    public function createFile($name, $data = null)
     {
         throw new DAV\Exception\MethodNotAllowed('Creating new files in this collection is not supported');
     }
diff --git a/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php b/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php
index 966d7ba09..4ca9284a9 100644
--- a/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php
+++ b/vendor/sabre/dav/lib/CardDAV/Backend/PDO.php
@@ -452,7 +452,7 @@ class PDO extends AbstractBackend implements SyncSupport
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChangesForAddressBook($addressBookId, $syncToken, $syncLevel, $limit = null)
     {
diff --git a/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php b/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php
index 071361ed0..6aaad1415 100644
--- a/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php
+++ b/vendor/sabre/dav/lib/CardDAV/Backend/SyncSupport.php
@@ -77,7 +77,7 @@ interface SyncSupport extends BackendInterface
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChangesForAddressBook($addressBookId, $syncToken, $syncLevel, $limit = null);
 }
diff --git a/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php b/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php
index c11d2dd73..491f96908 100644
--- a/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php
+++ b/vendor/sabre/dav/lib/CardDAV/Xml/Request/AddressBookMultiGetReport.php
@@ -38,7 +38,7 @@ class AddressBookMultiGetReport implements XmlDeserializable
     public $hrefs;
 
     /**
-     * The mimetype of the content that should be returend. Usually
+     * The mimetype of the content that should be returned. Usually
      * text/vcard.
      *
      * @var string
@@ -54,6 +54,13 @@ class AddressBookMultiGetReport implements XmlDeserializable
     public $version = null;
 
     /**
+     * An array with requested vcard properties.
+     *
+     * @var array
+     */
+    public $addressDataProperties;
+
+    /**
      * The deserialize method is called during xml parsing.
      *
      * This method is called statically, this is because in theory this method
diff --git a/vendor/sabre/dav/lib/DAV/Client.php b/vendor/sabre/dav/lib/DAV/Client.php
index a9de71cdb..1028a6b9d 100644
--- a/vendor/sabre/dav/lib/DAV/Client.php
+++ b/vendor/sabre/dav/lib/DAV/Client.php
@@ -174,27 +174,98 @@ class Client extends HTTP\Client
     }
 
     /**
-     * Does a PROPFIND request.
+     * Does a PROPFIND request with filtered response returning only available properties.
      *
      * The list of requested properties must be specified as an array, in clark
      * notation.
      *
-     * The returned array will contain a list of filenames as keys, and
-     * properties as values.
+     * Depth should be either 0 or 1. A depth of 1 will cause a request to be
+     * made to the server to also return all child resources.
+     *
+     * For depth 0, just the array of properties for the resource is returned.
+     *
+     * For depth 1, the returned array will contain a list of resource names as keys,
+     * and an array of properties as values.
      *
-     * The properties array will contain the list of properties. Only properties
-     * that are actually returned from the server (without error) will be
+     * The array of properties will contain the properties as keys with their values as the value.
+     * Only properties that are actually returned from the server without error will be
      * returned, anything else is discarded.
      *
+     * @param 1|0 $depth
+     */
+    public function propFind($url, array $properties, $depth = 0): array
+    {
+        $result = $this->doPropFind($url, $properties, $depth);
+
+        // If depth was 0, we only return the top item
+        if (0 === $depth) {
+            reset($result);
+            $result = current($result);
+
+            return isset($result[200]) ? $result[200] : [];
+        }
+
+        $newResult = [];
+        foreach ($result as $href => $statusList) {
+            $newResult[$href] = isset($statusList[200]) ? $statusList[200] : [];
+        }
+
+        return $newResult;
+    }
+
+    /**
+     * Does a PROPFIND request with unfiltered response.
+     *
+     * The list of requested properties must be specified as an array, in clark
+     * notation.
+     *
      * Depth should be either 0 or 1. A depth of 1 will cause a request to be
      * made to the server to also return all child resources.
      *
-     * @param string $url
-     * @param int    $depth
+     * For depth 0, just the multi-level array of status and properties for the resource is returned.
      *
-     * @return array
+     * For depth 1, the returned array will contain a list of resources as keys and
+     * a multi-level array containing status and properties as value.
+     *
+     * The multi-level array of status and properties is formatted the same as what is
+     * documented for parseMultiStatus.
+     *
+     * All properties that are actually returned from the server are returned by this method.
+     *
+     * @param 1|0 $depth
+     */
+    public function propFindUnfiltered(string $url, array $properties, int $depth = 0): array
+    {
+        $result = $this->doPropFind($url, $properties, $depth);
+
+        // If depth was 0, we only return the top item
+        if (0 === $depth) {
+            reset($result);
+
+            return current($result);
+        } else {
+            return $result;
+        }
+    }
+
+    /**
+     * Does a PROPFIND request.
+     *
+     * The list of requested properties must be specified as an array, in clark
+     * notation.
+     *
+     * Depth should be either 0 or 1. A depth of 1 will cause a request to be
+     * made to the server to also return all child resources.
+     *
+     * The returned array will contain a list of resources as keys and
+     * a multi-level array containing status and properties as value.
+     *
+     * The multi-level array of status and properties is formatted the same as what is
+     * documented for parseMultiStatus.
+     *
+     * @param 1|0 $depth
      */
-    public function propFind($url, array $properties, $depth = 0)
+    private function doPropFind($url, array $properties, $depth = 0): array
     {
         $dom = new \DOMDocument('1.0', 'UTF-8');
         $dom->formatOutput = true;
@@ -232,22 +303,7 @@ class Client extends HTTP\Client
             throw new HTTP\ClientHttpException($response);
         }
 
-        $result = $this->parseMultiStatus($response->getBodyAsString());
-
-        // If depth was 0, we only return the top item
-        if (0 === $depth) {
-            reset($result);
-            $result = current($result);
-
-            return isset($result[200]) ? $result[200] : [];
-        }
-
-        $newResult = [];
-        foreach ($result as $href => $statusList) {
-            $newResult[$href] = isset($statusList[200]) ? $statusList[200] : [];
-        }
-
-        return $newResult;
+        return $this->parseMultiStatus($response->getBodyAsString());
     }
 
     /**
@@ -385,7 +441,7 @@ class Client extends HTTP\Client
     {
         return Uri\resolve(
             $this->baseUri,
-            $url
+            (string) $url
         );
     }
 
diff --git a/vendor/sabre/dav/lib/DAV/INodeByPath.php b/vendor/sabre/dav/lib/DAV/INodeByPath.php
new file mode 100644
index 000000000..4d63a33bd
--- /dev/null
+++ b/vendor/sabre/dav/lib/DAV/INodeByPath.php
@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Sabre\DAV;
+
+/**
+ * INodeByPath.
+ *
+ * This interface adds a tiny bit of functionality to collections.
+ *
+ * Getting a node that is deep in the tree normally requires going trough each parent node
+ * which can cause a significant performance overhead.
+ *
+ * Implementing this interface allows solving this overhead by directly jumping to the target node.
+ *
+ * @copyright Copyright (C) Robin Appelman (https://icewind.nl/)
+ * @author Robin Appelman (https://icewind.nl/)
+ * @license http://sabre.io/license/ Modified BSD License
+ */
+interface INodeByPath
+{
+    /**
+     * Returns the INode object for the requested path.
+     *
+     * In case where this collection can not retrieve the requested node
+     * but also can not determine that the node does not exists,
+     * null should be returned to signal that the caller should fallback
+     * to walking the directory tree.
+     *
+     * @param string $path
+     *
+     * @return INode|null
+     */
+    public function getNodeForPath($path);
+}
diff --git a/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php b/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php
index 4ca69dc89..c829716b7 100644
--- a/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php
+++ b/vendor/sabre/dav/lib/DAV/Sync/ISyncCollection.php
@@ -84,7 +84,7 @@ interface ISyncCollection extends DAV\ICollection
      * @param int    $syncLevel
      * @param int    $limit
      *
-     * @return array
+     * @return array|null
      */
     public function getChanges($syncToken, $syncLevel, $limit = null);
 }
diff --git a/vendor/sabre/dav/lib/DAV/Tree.php b/vendor/sabre/dav/lib/DAV/Tree.php
index 8215e2c39..65b4583ce 100644
--- a/vendor/sabre/dav/lib/DAV/Tree.php
+++ b/vendor/sabre/dav/lib/DAV/Tree.php
@@ -16,7 +16,7 @@ use Sabre\Uri;
  * @author Evert Pot (http://evertpot.com/)
  * @license http://sabre.io/license/ Modified BSD License
  */
-class Tree
+class Tree implements INodeByPath
 {
     /**
      * The root node.
@@ -62,20 +62,26 @@ class Tree
             return $this->rootNode;
         }
 
-        // Attempting to fetch its parent
-        list($parentName, $baseName) = Uri\split($path);
+        $parts = explode('/', $path);
+        $node = $this->rootNode;
 
-        // If there was no parent, we must simply ask it from the root node.
-        if ('' === $parentName) {
-            $node = $this->rootNode->getChild($baseName);
-        } else {
-            // Otherwise, we recursively grab the parent and ask him/her.
-            $parent = $this->getNodeForPath($parentName);
-
-            if (!($parent instanceof ICollection)) {
+        while (count($parts)) {
+            if (!($node instanceof ICollection)) {
                 throw new Exception\NotFound('Could not find node at path: '.$path);
             }
-            $node = $parent->getChild($baseName);
+
+            if ($node instanceof INodeByPath) {
+                $targetNode = $node->getNodeForPath(implode('/', $parts));
+                if ($targetNode instanceof Node) {
+                    $node = $targetNode;
+                    break;
+                }
+            }
+
+            $part = array_shift($parts);
+            if ('' !== $part) {
+                $node = $node->getChild($part);
+            }
         }
 
         $this->cache[$path] = $node;
diff --git a/vendor/sabre/dav/lib/DAV/Version.php b/vendor/sabre/dav/lib/DAV/Version.php
index c6273ef72..345c62d7e 100644
--- a/vendor/sabre/dav/lib/DAV/Version.php
+++ b/vendor/sabre/dav/lib/DAV/Version.php
@@ -16,5 +16,5 @@ class Version
     /**
      * Full version number.
      */
-    public const VERSION = '4.4.0';
+    public const VERSION = '4.6.0';
 }
diff --git a/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php b/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php
index 79f06a09b..df9291465 100644
--- a/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php
+++ b/vendor/sabre/dav/lib/DAV/Xml/Element/Response.php
@@ -40,7 +40,7 @@ class Response implements Element
      *
      * This is currently only used in WebDAV-Sync
      *
-     * @var string
+     * @var string|null
      */
     protected $httpStatus;
 
@@ -112,13 +112,21 @@ class Response implements Element
      */
     public function xmlSerialize(Writer $writer)
     {
-        if ($status = $this->getHTTPStatus()) {
-            $writer->writeElement('{DAV:}status', 'HTTP/1.1 '.$status.' '.\Sabre\HTTP\Response::$statusCodes[$status]);
-        }
+        /*
+         * Accordingly to the RFC the element looks like:
+         * <!ELEMENT response (href, ((href*, status)|(propstat+)), error?, responsedescription? , location?) >
+         *
+         * So the response
+         *   - MUST contain a href and
+         *   - EITHER a status and additional href(s)
+         *     OR one or more propstat(s)
+         */
         $writer->writeElement('{DAV:}href', $writer->contextUri.\Sabre\HTTP\encodePath($this->getHref()));
 
         $empty = true;
+        $httpStatus = $this->getHTTPStatus();
 
+        // Add propstat elements
         foreach ($this->getResponseProperties() as $status => $properties) {
             // Skipping empty lists
             if (!$properties || (!is_int($status) && !ctype_digit($status))) {
@@ -130,19 +138,25 @@ class Response implements Element
             $writer->writeElement('{DAV:}status', 'HTTP/1.1 '.$status.' '.\Sabre\HTTP\Response::$statusCodes[$status]);
             $writer->endElement(); // {DAV:}propstat
         }
+
+        // The WebDAV spec only allows the status element on responses _without_ a propstat
         if ($empty) {
-            /*
-             * The WebDAV spec _requires_ at least one DAV:propstat to appear for
-             * every DAV:response. In some circumstances however, there are no
-             * properties to encode.
-             *
-             * In those cases we MUST specify at least one DAV:propstat anyway, with
-             * no properties.
-             */
-            $writer->writeElement('{DAV:}propstat', [
-                '{DAV:}prop' => [],
-                '{DAV:}status' => 'HTTP/1.1 418 '.\Sabre\HTTP\Response::$statusCodes[418],
-            ]);
+            if (null !== $httpStatus) {
+                $writer->writeElement('{DAV:}status', 'HTTP/1.1 '.$httpStatus.' '.\Sabre\HTTP\Response::$statusCodes[$httpStatus]);
+            } else {
+                /*
+                * The WebDAV spec _requires_ at least one DAV:propstat to appear for
+                * every DAV:response if there is no status.
+                * In some circumstances however, there are no properties to encode.
+                *
+                * In those cases we MUST specify at least one DAV:propstat anyway, with
+                * no properties.
+                */
+                $writer->writeElement('{DAV:}propstat', [
+                    '{DAV:}prop' => [],
+                    '{DAV:}status' => 'HTTP/1.1 418 '.\Sabre\HTTP\Response::$statusCodes[418],
+                ]);
+            }
         }
     }
 
diff --git a/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php b/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php
index f88ce814a..d4e43da7c 100644
--- a/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php
+++ b/vendor/sabre/dav/lib/DAV/Xml/Property/Href.php
@@ -35,6 +35,19 @@ class Href implements Element, HtmlOutput
     protected $hrefs;
 
     /**
+     * Automatically prefix the url with the server base directory.
+     * Note: use of this property in code was removed in PR:
+     * https://github.com/sabre-io/dav/pull/801
+     * But the property is left here because old data may still exist
+     * that has this property saved.
+     * See discussion in issue:
+     * https://github.com/sabre-io/Baikal/issues/1154.
+     *
+     * @var bool
+     */
+    protected $autoPrefix = true;
+
+    /**
      * Constructor.
      *
      * You must either pass a string for a single href, or an array of hrefs.
diff --git a/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php b/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php
index 7140a9295..2fd31913d 100644
--- a/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php
+++ b/vendor/sabre/dav/lib/DAVACL/PrincipalBackend/BackendInterface.php
@@ -48,7 +48,7 @@ interface BackendInterface
     public function getPrincipalByPath($path);
 
     /**
-     * Updates one ore more webdav properties on a principal.
+     * Updates one or more webdav properties on a principal.
      *
      * The list of mutations is stored in a Sabre\DAV\PropPatch object.
      * To do the actual updates, you must tell this object which properties