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<?php
/**
* @copyright Copyright (c) 2016, ownCloud, Inc.
*
* @author Julius Härtl <jus@bitgrid.net>
* @author Jörn Friedrich Dreyer <jfd@butonic.de>
* @author Lukas Reschke <lukas@statuscode.ch>
* @author Morris Jobke <hey@morrisjobke.de>
* @author Robin McCorkell <robin@mccorkell.me.uk>
* @author Roeland Jago Douma <roeland@famdouma.nl>
* @author Thomas Müller <thomas.mueller@tmit.eu>
* @author Thomas Tanghus <thomas@tanghus.net>
*
* @license AGPL-3.0
*
* This code is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License, version 3,
* along with this program. If not, see <http://www.gnu.org/licenses/>
*
*/
namespace OC\AppFramework;
use OCP\AppFramework\Http as BaseHttp;
class Http extends BaseHttp {
private $server;
private $protocolVersion;
protected $headers;
/**
* @param array $server $_SERVER
* @param string $protocolVersion the http version to use defaults to HTTP/1.1
*/
public function __construct($server, $protocolVersion='HTTP/1.1') {
$this->server = $server;
$this->protocolVersion = $protocolVersion;
$this->headers = array(
self::STATUS_CONTINUE => 'Continue',
self::STATUS_SWITCHING_PROTOCOLS => 'Switching Protocols',
self::STATUS_PROCESSING => 'Processing',
self::STATUS_OK => 'OK',
self::STATUS_CREATED => 'Created',
self::STATUS_ACCEPTED => 'Accepted',
self::STATUS_NON_AUTHORATIVE_INFORMATION => 'Non-Authorative Information',
self::STATUS_NO_CONTENT => 'No Content',
self::STATUS_RESET_CONTENT => 'Reset Content',
self::STATUS_PARTIAL_CONTENT => 'Partial Content',
self::STATUS_MULTI_STATUS => 'Multi-Status', // RFC 4918
self::STATUS_ALREADY_REPORTED => 'Already Reported', // RFC 5842
self::STATUS_IM_USED => 'IM Used', // RFC 3229
self::STATUS_MULTIPLE_CHOICES => 'Multiple Choices',
self::STATUS_MOVED_PERMANENTLY => 'Moved Permanently',
self::STATUS_FOUND => 'Found',
self::STATUS_SEE_OTHER => 'See Other',
self::STATUS_NOT_MODIFIED => 'Not Modified',
self::STATUS_USE_PROXY => 'Use Proxy',
self::STATUS_RESERVED => 'Reserved',
self::STATUS_TEMPORARY_REDIRECT => 'Temporary Redirect',
self::STATUS_BAD_REQUEST => 'Bad request',
self::STATUS_UNAUTHORIZED => 'Unauthorized',
self::STATUS_PAYMENT_REQUIRED => 'Payment Required',
self::STATUS_FORBIDDEN => 'Forbidden',
self::STATUS_NOT_FOUND => 'Not Found',
self::STATUS_METHOD_NOT_ALLOWED => 'Method Not Allowed',
self::STATUS_NOT_ACCEPTABLE => 'Not Acceptable',
self::STATUS_PROXY_AUTHENTICATION_REQUIRED => 'Proxy Authentication Required',
self::STATUS_REQUEST_TIMEOUT => 'Request Timeout',
self::STATUS_CONFLICT => 'Conflict',
self::STATUS_GONE => 'Gone',
self::STATUS_LENGTH_REQUIRED => 'Length Required',
self::STATUS_PRECONDITION_FAILED => 'Precondition failed',
self::STATUS_REQUEST_ENTITY_TOO_LARGE => 'Request Entity Too Large',
self::STATUS_REQUEST_URI_TOO_LONG => 'Request-URI Too Long',
self::STATUS_UNSUPPORTED_MEDIA_TYPE => 'Unsupported Media Type',
self::STATUS_REQUEST_RANGE_NOT_SATISFIABLE => 'Requested Range Not Satisfiable',
self::STATUS_EXPECTATION_FAILED => 'Expectation Failed',
self::STATUS_IM_A_TEAPOT => 'I\'m a teapot', // RFC 2324
self::STATUS_UNPROCESSABLE_ENTITY => 'Unprocessable Entity', // RFC 4918
self::STATUS_LOCKED => 'Locked', // RFC 4918
self::STATUS_FAILED_DEPENDENCY => 'Failed Dependency', // RFC 4918
self::STATUS_UPGRADE_REQUIRED => 'Upgrade required',
self::STATUS_PRECONDITION_REQUIRED => 'Precondition required', // draft-nottingham-http-new-status
self::STATUS_TOO_MANY_REQUESTS => 'Too Many Requests', // draft-nottingham-http-new-status
self::STATUS_REQUEST_HEADER_FIELDS_TOO_LARGE => 'Request Header Fields Too Large', // draft-nottingham-http-new-status
self::STATUS_INTERNAL_SERVER_ERROR => 'Internal Server Error',
self::STATUS_NOT_IMPLEMENTED => 'Not Implemented',
self::STATUS_BAD_GATEWAY => 'Bad Gateway',
self::STATUS_SERVICE_UNAVAILABLE => 'Service Unavailable',
self::STATUS_GATEWAY_TIMEOUT => 'Gateway Timeout',
self::STATUS_HTTP_VERSION_NOT_SUPPORTED => 'HTTP Version not supported',
self::STATUS_VARIANT_ALSO_NEGOTIATES => 'Variant Also Negotiates',
self::STATUS_INSUFFICIENT_STORAGE => 'Insufficient Storage', // RFC 4918
self::STATUS_LOOP_DETECTED => 'Loop Detected', // RFC 5842
self::STATUS_BANDWIDTH_LIMIT_EXCEEDED => 'Bandwidth Limit Exceeded', // non-standard
self::STATUS_NOT_EXTENDED => 'Not extended',
self::STATUS_NETWORK_AUTHENTICATION_REQUIRED => 'Network Authentication Required', // draft-nottingham-http-new-status
);
}
/**
* Gets the correct header
* @param int Http::CONSTANT $status the constant from the Http class
* @param \DateTime $lastModified formatted last modified date
* @param string $ETag the etag
* @return string
*/
public function getStatusHeader($status, \DateTime $lastModified=null,
$ETag=null) {
if(!is_null($lastModified)) {
$lastModified = $lastModified->format(\DateTime::RFC2822);
}
// if etag or lastmodified have not changed, return a not modified
if ((isset($this->server['HTTP_IF_NONE_MATCH'])
&& trim(trim($this->server['HTTP_IF_NONE_MATCH']), '"') === (string)$ETag)
||
(isset($this->server['HTTP_IF_MODIFIED_SINCE'])
&& trim($this->server['HTTP_IF_MODIFIED_SINCE']) ===
$lastModified)) {
$status = self::STATUS_NOT_MODIFIED;
}
// we have one change currently for the http 1.0 header that differs
// from 1.1: STATUS_TEMPORARY_REDIRECT should be STATUS_FOUND
// if this differs any more, we want to create childclasses for this
if($status === self::STATUS_TEMPORARY_REDIRECT
&& $this->protocolVersion === 'HTTP/1.0') {
$status = self::STATUS_FOUND;
}
return $this->protocolVersion . ' ' . $status . ' ' .
$this->headers[$status];
}
}