apps/dav: add some OSX specific quirks.
Signed-off-by: Claus-Justus Heine <himself@claus-justus-heine.de>pull/36800/head
Claus-Justus Heine
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55db978090
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64e9dcc9c3
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<?php
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/**
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* @copyright Copyright (c) 2023 Claus-Justus Heine
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*
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* @author Claus-Justus Heine <himself@claus-justus-heine.de>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OCA\DAV\Connector\Sabre;
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use Sabre\DAV\Server;
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use Sabre\DAV\ServerPlugin;
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use Sabre\HTTP\RequestInterface;
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use Sabre\HTTP\ResponseInterface;
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/**
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* A plugin which tries to work-around peculiarities of the MacOS DAV client
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* apps. The following problems are addressed:
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*
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* - OSX calendar client sends REPORT requests to a random principal
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* collection but expects to find all principals (forgot to set
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* {DAV:}principal-property-search flag?)
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*/
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class AppleQuirksPlugin extends ServerPlugin {
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/*
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private const OSX_CALENDAR_AGENT = 'CalendarAgent';
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private const OSX_DATAACCESSD_AGENT = 'dataaccessd';
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private const OSX_ACCOUNTSD_AGENT = 'accountsd';
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private const OSX_CONTACTS_AGENT = 'AddressBookCore';
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*/
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private const OSX_AGENT_PREFIX = 'macOS';
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/** @var bool */
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private $isMacOSDavAgent = false;
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/**
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* Sets up the plugin.
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*
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* This method is automatically called by the server class.
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*
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* @return void
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*/
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public function initialize(Server $server)
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{
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$server->on('beforeMethod:REPORT', [$this, 'beforeReport'], 0);
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$server->on('report', [$this, 'report'], 0);
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}
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/**
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* Triggered before any method is handled.
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*
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* @return void
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*/
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public function beforeReport(RequestInterface $request, ResponseInterface $response)
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{
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$userAgent = $request->getRawServerValue('HTTP_USER_AGENT') ?? 'unknown';
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$this->isMacOSDavAgent = $this->isMacOSUserAgent($userAgent);
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}
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/**
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* This method handles HTTP REPORT requests.
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*
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* @param string $reportName
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* @param mixed $report
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* @param mixed $path
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*
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* @return bool
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*/
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public function report($reportName, $report, $path)
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{
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if ($reportName == '{DAV:}principal-property-search' && $this->isMacOSDavAgent) {
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/** @var \Sabre\DAVACL\Xml\Request\PrincipalPropertySearchReport $report */
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$report->applyToPrincipalCollectionSet = true;
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}
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return true;
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}
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/**
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* Check whether the given $userAgent string pretends to originate from OSX.
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*
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* @param string $userAgent
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*
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* @return bool
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*/
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protected function isMacOSUserAgent(string $userAgent):bool
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{
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return str_starts_with(self::OSX_AGENT_PREFIX, $userAgent);
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}
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/**
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* Decode the given OSX DAV agent string.
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*
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* @param string $agent
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*
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* @return null|array
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*/
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protected function decodeMacOSAgentString(string $userAgent):?array
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{
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// OSX agent string is like: macOS/13.2.1 (22D68) dataaccessd/1.0
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if (preg_match('|^' . self::OSX_AGENT_PREFIX . '/([0-9]+)\\.([0-9]+)\\.([0-9]+)\s+\((\w+)\)\s+([^/]+)/([0-9]+)(?:\\.([0-9]+))?(?:\\.([0-9]+))?$|i', $userAgent, $matches)) {
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return [
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'macOSVersion' => [
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'major' => $matches[1],
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'minor' => $matches[2],
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'patch' => $matches[3],
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],
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'macOSAgent' => $matches[5],
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'macOSAgentVersion' => [
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'major' => $matches[6],
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'minor' => $matches[7] ?? null,
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'patch' => $matches[8] ?? null,
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],
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];
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}
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return null;
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}
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}
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