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102 lines
2.6 KiB
PHP
102 lines
2.6 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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namespace OCA\DAV\Files;
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use OC\AppFramework\Http\Request;
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use OCP\AppFramework\Http\ContentSecurityPolicy;
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use OCP\AppFramework\Http\TemplateResponse;
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use OCP\IRequest;
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use OCP\Template\ITemplateManager;
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use Sabre\DAV\Exception;
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use Sabre\DAV\Server;
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use Sabre\DAV\ServerPlugin;
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class BrowserErrorPagePlugin extends ServerPlugin {
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/** @var Server */
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private $server;
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/**
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* This initializes the plugin.
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*
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* This function is called by Sabre\DAV\Server, after
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* addPlugin is called.
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*
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* This method should set up the required event subscriptions.
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*
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* @param Server $server
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* @return void
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*/
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public function initialize(Server $server) {
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$this->server = $server;
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$server->on('exception', [$this, 'logException'], 1000);
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}
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/**
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* @param IRequest $request
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* @return bool
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*/
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public static function isBrowserRequest(IRequest $request) {
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if ($request->getMethod() !== 'GET') {
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return false;
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}
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return $request->isUserAgent([
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Request::USER_AGENT_IE,
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Request::USER_AGENT_MS_EDGE,
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Request::USER_AGENT_CHROME,
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Request::USER_AGENT_FIREFOX,
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Request::USER_AGENT_SAFARI,
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]);
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}
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/**
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* @param \Throwable $ex
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*/
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public function logException(\Throwable $ex): void {
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if ($ex instanceof Exception) {
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$httpCode = $ex->getHTTPCode();
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$headers = $ex->getHTTPHeaders($this->server);
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} else {
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$httpCode = 500;
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$headers = [];
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}
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$this->server->httpResponse->addHeaders($headers);
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$this->server->httpResponse->setStatus($httpCode);
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$body = $this->generateBody($httpCode);
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$this->server->httpResponse->setBody($body);
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$csp = new ContentSecurityPolicy();
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$this->server->httpResponse->addHeader('Content-Security-Policy', $csp->buildPolicy());
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$this->sendResponse();
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}
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/**
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* @codeCoverageIgnore
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* @return bool|string
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*/
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public function generateBody(int $httpCode) {
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$request = \OCP\Server::get(IRequest::class);
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$templateName = 'exception';
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if ($httpCode === 403 || $httpCode === 404) {
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$templateName = (string)$httpCode;
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}
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$content = \OCP\Server::get(ITemplateManager::class)->getTemplate('core', $templateName, TemplateResponse::RENDER_AS_GUEST);
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$content->assign('title', $this->server->httpResponse->getStatusText());
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$content->assign('remoteAddr', $request->getRemoteAddress());
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$content->assign('requestID', $request->getId());
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return $content->fetchPage();
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}
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/**
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* @codeCoverageIgnore
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*/
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public function sendResponse() {
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$this->server->sapi->sendResponse($this->server->httpResponse);
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exit();
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}
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}
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