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/*
* Copyright (C) 2011 Google Inc. All rights reserved.
* Copyright (C) 2021 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "CookieRequestHeaderFieldProxy.h"
#include <wtf/URL.h>
#include "ResourceResponse.h"
#include "WebSocketExtensionDispatcher.h"
#include "WebSocketExtensionProcessor.h"
#include <wtf/TZoneMalloc.h>
#include <wtf/WeakPtr.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class ResourceRequest;
class WebSocketHandshake {
WTF_MAKE_TZONE_ALLOCATED_EXPORT(WebSocketHandshake, WEBCORE_EXPORT);
WTF_MAKE_NONCOPYABLE(WebSocketHandshake);
public:
enum Mode {
Incomplete, Normal, Failed, Connected
};
WEBCORE_EXPORT WebSocketHandshake(const URL&, const String& protocol, const String& userAgent, const String& clientOrigin, bool allowCookies, bool isAppInitiated);
WEBCORE_EXPORT ~WebSocketHandshake();
WEBCORE_EXPORT const URL& url() const;
void setURL(const URL&);
WEBCORE_EXPORT URL httpURLForAuthenticationAndCookies() const;
const String host() const;
const String& clientProtocol() const;
void setClientProtocol(const String&);
bool secure() const;
String clientLocation() const;
WEBCORE_EXPORT CString clientHandshakeMessage() const;
WEBCORE_EXPORT ResourceRequest clientHandshakeRequest(NOESCAPE const Function<String(const URL&)>& cookieRequestHeaderFieldValue) const;
WEBCORE_EXPORT void reset();
WEBCORE_EXPORT int readServerHandshake(std::span<const uint8_t> header);
WEBCORE_EXPORT Mode mode() const;
WEBCORE_EXPORT String failureReason() const; // Returns a string indicating the reason of failure if mode() == Failed.
WEBCORE_EXPORT String serverWebSocketProtocol() const;
WEBCORE_EXPORT String serverSetCookie() const;
String serverUpgrade() const;
String serverConnection() const;
String serverWebSocketAccept() const;
WEBCORE_EXPORT String acceptedExtensions() const;
WEBCORE_EXPORT const ResourceResponse& serverHandshakeResponse() const;
WEBCORE_EXPORT void addExtensionProcessor(std::unique_ptr<WebSocketExtensionProcessor>);
static String getExpectedWebSocketAccept(const String& secWebSocketKey);
private:
int readStatusLine(std::span<const uint8_t> header, int& statusCode, String& statusText);
// Reads all headers except for the two predefined ones.
std::span<const uint8_t> readHTTPHeaders(std::span<const uint8_t>);
void processHeaders();
bool checkResponseHeaders();
URL m_url;
String m_clientProtocol;
bool m_secure;
Mode m_mode;
String m_userAgent;
String m_clientOrigin;
bool m_allowCookies;
bool m_isAppInitiated;
ResourceResponse m_serverHandshakeResponse;
String m_failureReason;
String m_secWebSocketKey;
String m_expectedAccept;
WebSocketExtensionDispatcher m_extensionDispatcher;
};
} // namespace WebCore
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