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186 lines
4.9 KiB
PHP
186 lines
4.9 KiB
PHP
<?php
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/**
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* @copyright Copyright (c) 2016, ownCloud, Inc.
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*
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* @author Bart Visscher <bartv@thisnet.nl>
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* @author Björn Schießle <bjoern@schiessle.org>
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Jörn Friedrich Dreyer <jfd@butonic.de>
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* @author Lukas Reschke <lukas@statuscode.ch>
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* @author Michael Gapczynski <GapczynskiM@gmail.com>
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* @author Morris Jobke <hey@morrisjobke.de>
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* @author Roeland Jago Douma <roeland@famdouma.nl>
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* @author Thomas Müller <thomas.mueller@tmit.eu>
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* @author Tom Needham <tom@owncloud.com>
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*
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* @license AGPL-3.0
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*
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* This code 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, version 3,
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* as published by the Free Software Foundation.
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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, version 3,
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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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use OCP\API;
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use OCP\AppFramework\Http;
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class OC_API {
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/**
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* api actions
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*/
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protected static $actions = [];
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/**
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* respond to a call
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* @param \OC\OCS\Result $result
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* @param string $format the format xml|json
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* @psalm-taint-escape html
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*/
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public static function respond($result, $format = 'xml') {
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$request = \OC::$server->getRequest();
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// Send 401 headers if unauthorised
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if ($result->getStatusCode() === \OCP\AppFramework\OCSController::RESPOND_UNAUTHORISED) {
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// If request comes from JS return dummy auth request
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if ($request->getHeader('X-Requested-With') === 'XMLHttpRequest') {
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header('WWW-Authenticate: DummyBasic realm="Authorisation Required"');
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} else {
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header('WWW-Authenticate: Basic realm="Authorisation Required"');
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}
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http_response_code(401);
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}
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foreach ($result->getHeaders() as $name => $value) {
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header($name . ': ' . $value);
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}
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$meta = $result->getMeta();
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$data = $result->getData();
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if (self::isV2($request)) {
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$statusCode = self::mapStatusCodes($result->getStatusCode());
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if (!is_null($statusCode)) {
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$meta['statuscode'] = $statusCode;
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http_response_code($statusCode);
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}
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}
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self::setContentType($format);
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$body = self::renderResult($format, $meta, $data);
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echo $body;
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}
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/**
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* @param XMLWriter $writer
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*/
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private static function toXML($array, $writer) {
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foreach ($array as $k => $v) {
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if ($k[0] === '@') {
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$writer->writeAttribute(substr($k, 1), $v);
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continue;
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} elseif (is_numeric($k)) {
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$k = 'element';
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}
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if (is_array($v)) {
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$writer->startElement($k);
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self::toXML($v, $writer);
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$writer->endElement();
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} else {
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$writer->writeElement($k, $v);
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}
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}
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}
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public static function requestedFormat(): string {
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$formats = ['json', 'xml'];
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$format = (isset($_GET['format']) && is_string($_GET['format']) && in_array($_GET['format'], $formats)) ? $_GET['format'] : 'xml';
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return $format;
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}
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/**
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* Based on the requested format the response content type is set
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* @param string $format
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*/
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public static function setContentType($format = null) {
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$format = is_null($format) ? self::requestedFormat() : $format;
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if ($format === 'xml') {
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header('Content-type: text/xml; charset=UTF-8');
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return;
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}
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if ($format === 'json') {
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header('Content-Type: application/json; charset=utf-8');
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return;
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}
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header('Content-Type: application/octet-stream; charset=utf-8');
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}
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/**
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* @param \OCP\IRequest $request
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* @return bool
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*/
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protected static function isV2(\OCP\IRequest $request) {
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$script = $request->getScriptName();
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return str_ends_with($script, '/ocs/v2.php');
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}
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/**
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* @param integer $sc
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* @return int
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*/
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public static function mapStatusCodes($sc) {
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switch ($sc) {
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case \OCP\AppFramework\OCSController::RESPOND_NOT_FOUND:
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return Http::STATUS_NOT_FOUND;
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case \OCP\AppFramework\OCSController::RESPOND_SERVER_ERROR:
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return Http::STATUS_INTERNAL_SERVER_ERROR;
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case \OCP\AppFramework\OCSController::RESPOND_UNKNOWN_ERROR:
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return Http::STATUS_INTERNAL_SERVER_ERROR;
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case \OCP\AppFramework\OCSController::RESPOND_UNAUTHORISED:
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// already handled for v1
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return null;
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case 100:
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return Http::STATUS_OK;
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}
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// any 2xx, 4xx and 5xx will be used as is
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if ($sc >= 200 && $sc < 600) {
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return $sc;
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}
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return Http::STATUS_BAD_REQUEST;
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}
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/**
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* @param string $format
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* @return string
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*/
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public static function renderResult($format, $meta, $data) {
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$response = [
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'ocs' => [
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'meta' => $meta,
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'data' => $data,
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],
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];
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if ($format == 'json') {
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return OC_JSON::encode($response);
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}
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$writer = new XMLWriter();
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$writer->openMemory();
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$writer->setIndent(true);
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$writer->startDocument();
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self::toXML($response, $writer);
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$writer->endDocument();
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return $writer->outputMemory(true);
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}
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}
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