2016-02-26 11:37:24 +00:00
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/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the test suite of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtTest/QtTest>
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#include <QtNetwork/private/http2protocol_p.h>
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#include <QtNetwork/private/bitstreams_p.h>
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#include "http2srv.h"
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2016-08-04 12:40:33 +00:00
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#ifndef QT_NO_SSL
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2016-02-26 11:37:24 +00:00
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#include <QtNetwork/qsslconfiguration.h>
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2016-08-15 06:44:54 +00:00
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#include <QtNetwork/qsslsocket.h>
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2016-02-26 11:37:24 +00:00
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#include <QtNetwork/qsslkey.h>
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2016-08-04 12:40:33 +00:00
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#endif
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2016-08-15 06:44:54 +00:00
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#include <QtNetwork/qtcpsocket.h>
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2016-08-04 12:40:33 +00:00
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2016-12-13 15:26:06 +00:00
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#include <QtCore/qtimer.h>
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2016-02-26 11:37:24 +00:00
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#include <QtCore/qdebug.h>
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#include <QtCore/qlist.h>
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#include <QtCore/qfile.h>
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#include <cstdlib>
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#include <cstring>
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#include <limits>
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QT_BEGIN_NAMESPACE
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using namespace Http2;
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using namespace HPack;
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namespace
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{
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inline bool is_valid_client_stream(quint32 streamID)
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{
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// A valid client stream ID is an odd integer number in the range [1, INT_MAX].
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2017-06-27 08:01:36 +00:00
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return (streamID & 0x1) && streamID <= quint32(std::numeric_limits<qint32>::max());
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2016-02-26 11:37:24 +00:00
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}
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2016-10-10 13:29:26 +00:00
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void fill_push_header(const HttpHeader &originalRequest, HttpHeader &promisedRequest)
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{
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for (const auto &field : originalRequest) {
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if (field.name == QByteArray(":authority") ||
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field.name == QByteArray(":scheme")) {
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promisedRequest.push_back(field);
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}
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}
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}
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2016-02-26 11:37:24 +00:00
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}
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2016-08-04 12:40:33 +00:00
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Http2Server::Http2Server(bool h2c, const Http2Settings &ss, const Http2Settings &cs)
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: serverSettings(ss),
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clearTextHTTP2(h2c)
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2016-02-26 11:37:24 +00:00
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{
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for (const auto &s : cs)
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expectedClientSettings[quint16(s.identifier)] = s.value;
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responseBody = "<html>\n"
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"<head>\n"
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"<title>Sample \"Hello, World\" Application</title>\n"
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"</head>\n"
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"<body bgcolor=white>\n"
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"<table border=\"0\" cellpadding=\"10\">\n"
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"<tr>\n"
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"<td>\n"
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"<img src=\"images/springsource.png\">\n"
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"</td>\n"
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"<td>\n"
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"<h1>Sample \"Hello, World\" Application</h1>\n"
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"</td>\n"
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"</tr>\n"
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"</table>\n"
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"<p>This is the home page for the HelloWorld Web application. </p>\n"
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"</body>\n"
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"</html>";
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}
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Http2Server::~Http2Server()
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{
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}
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2016-10-10 13:29:26 +00:00
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void Http2Server::enablePushPromise(bool pushEnabled, const QByteArray &path)
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{
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pushPromiseEnabled = pushEnabled;
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pushPath = path;
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}
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2016-02-26 11:37:24 +00:00
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void Http2Server::setResponseBody(const QByteArray &body)
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{
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responseBody = body;
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}
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2016-12-13 15:26:06 +00:00
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void Http2Server::emulateGOAWAY(int timeout)
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{
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Q_ASSERT(timeout >= 0);
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testingGOAWAY = true;
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goawayTimeout = timeout;
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}
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2016-02-26 11:37:24 +00:00
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void Http2Server::startServer()
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{
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2016-08-04 12:40:33 +00:00
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#ifdef QT_NO_SSL
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// Let the test fail with timeout.
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if (!clearTextHTTP2)
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return;
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#endif
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2016-02-26 11:37:24 +00:00
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if (listen())
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emit serverStarted(serverPort());
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}
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void Http2Server::sendServerSettings()
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{
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Q_ASSERT(socket);
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if (!serverSettings.size())
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return;
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2016-08-16 14:23:54 +00:00
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writer.start(FrameType::SETTINGS, FrameFlag::EMPTY, connectionStreamID);
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2016-02-26 11:37:24 +00:00
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for (const auto &s : serverSettings) {
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2016-08-16 14:23:54 +00:00
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writer.append(s.identifier);
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writer.append(s.value);
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2016-02-26 11:37:24 +00:00
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if (s.identifier == Settings::INITIAL_WINDOW_SIZE_ID)
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streamRecvWindowSize = s.value;
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}
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2016-08-16 14:23:54 +00:00
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writer.write(*socket);
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2016-02-26 11:37:24 +00:00
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// Now, let's update our peer on a session recv window size:
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const quint32 updatedSize = 10 * streamRecvWindowSize;
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if (sessionRecvWindowSize < updatedSize) {
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const quint32 delta = updatedSize - sessionRecvWindowSize;
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sessionRecvWindowSize = updatedSize;
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sessionCurrRecvWindow = updatedSize;
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sendWINDOW_UPDATE(connectionStreamID, delta);
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}
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waitingClientAck = true;
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settingsSent = true;
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}
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void Http2Server::sendGOAWAY(quint32 streamID, quint32 error, quint32 lastStreamID)
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{
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Q_ASSERT(socket);
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2016-08-16 14:23:54 +00:00
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writer.start(FrameType::GOAWAY, FrameFlag::EMPTY, streamID);
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writer.append(lastStreamID);
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writer.append(error);
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writer.write(*socket);
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2016-02-26 11:37:24 +00:00
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}
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void Http2Server::sendRST_STREAM(quint32 streamID, quint32 error)
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{
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Q_ASSERT(socket);
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2016-08-16 14:23:54 +00:00
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writer.start(FrameType::RST_STREAM, FrameFlag::EMPTY, streamID);
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writer.append(error);
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writer.write(*socket);
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2016-02-26 11:37:24 +00:00
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}
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void Http2Server::sendDATA(quint32 streamID, quint32 windowSize)
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{
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Q_ASSERT(socket);
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const auto it = suspendedStreams.find(streamID);
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Q_ASSERT(it != suspendedStreams.end());
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const quint32 offset = it->second;
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Q_ASSERT(offset < quint32(responseBody.size()));
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const quint32 bytes = std::min<quint32>(windowSize, responseBody.size() - offset);
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2016-08-04 12:40:33 +00:00
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const quint32 frameSizeLimit(clientSetting(Settings::MAX_FRAME_SIZE_ID, Http2::maxFrameSize));
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const uchar *src = reinterpret_cast<const uchar *>(responseBody.constData() + offset);
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2016-02-26 11:37:24 +00:00
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const bool last = offset + bytes == quint32(responseBody.size());
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2016-08-16 14:23:54 +00:00
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writer.start(FrameType::DATA, FrameFlag::EMPTY, streamID);
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writer.writeDATA(*socket, frameSizeLimit, src, bytes);
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2016-02-26 11:37:24 +00:00
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if (last) {
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2016-08-16 14:23:54 +00:00
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writer.start(FrameType::DATA, FrameFlag::END_STREAM, streamID);
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writer.setPayloadSize(0);
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writer.write(*socket);
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2016-02-26 11:37:24 +00:00
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suspendedStreams.erase(it);
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activeRequests.erase(streamID);
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Q_ASSERT(closedStreams.find(streamID) == closedStreams.end());
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closedStreams.insert(streamID);
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} else {
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it->second += bytes;
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}
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}
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void Http2Server::sendWINDOW_UPDATE(quint32 streamID, quint32 delta)
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{
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Q_ASSERT(socket);
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2016-08-16 14:23:54 +00:00
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writer.start(FrameType::WINDOW_UPDATE, FrameFlag::EMPTY, streamID);
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writer.append(delta);
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writer.write(*socket);
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2016-02-26 11:37:24 +00:00
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}
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void Http2Server::incomingConnection(qintptr socketDescriptor)
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{
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2016-08-04 12:40:33 +00:00
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if (clearTextHTTP2) {
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socket.reset(new QTcpSocket);
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const bool set = socket->setSocketDescriptor(socketDescriptor);
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2016-10-10 13:29:26 +00:00
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Q_ASSERT(set);
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2016-08-04 12:40:33 +00:00
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// Stop listening:
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close();
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QMetaObject::invokeMethod(this, "connectionEstablished",
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Qt::QueuedConnection);
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} else {
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#ifndef QT_NO_SSL
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socket.reset(new QSslSocket);
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QSslSocket *sslSocket = static_cast<QSslSocket *>(socket.data());
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// Add HTTP2 as supported protocol:
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auto conf = QSslConfiguration::defaultConfiguration();
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auto protos = conf.allowedNextProtocols();
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protos.prepend(QSslConfiguration::ALPNProtocolHTTP2);
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conf.setAllowedNextProtocols(protos);
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sslSocket->setSslConfiguration(conf);
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// SSL-related setup ...
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sslSocket->setPeerVerifyMode(QSslSocket::VerifyNone);
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sslSocket->setProtocol(QSsl::TlsV1_2OrLater);
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connect(sslSocket, SIGNAL(sslErrors(QList<QSslError>)),
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this, SLOT(ignoreErrorSlot()));
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QFile file(SRCDIR "certs/fluke.key");
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file.open(QIODevice::ReadOnly);
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QSslKey key(file.readAll(), QSsl::Rsa, QSsl::Pem, QSsl::PrivateKey);
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sslSocket->setPrivateKey(key);
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auto localCert = QSslCertificate::fromPath(SRCDIR "certs/fluke.cert");
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sslSocket->setLocalCertificateChain(localCert);
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sslSocket->setSocketDescriptor(socketDescriptor, QAbstractSocket::ConnectedState);
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// Stop listening.
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close();
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// Start SSL handshake and ALPN:
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connect(sslSocket, SIGNAL(encrypted()), this, SLOT(connectionEstablished()));
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sslSocket->startServerEncryption();
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#else
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Q_UNREACHABLE();
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#endif
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}
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2016-02-26 11:37:24 +00:00
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}
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quint32 Http2Server::clientSetting(Http2::Settings identifier, quint32 defaultValue)
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{
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const auto it = expectedClientSettings.find(quint16(identifier));
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if (it != expectedClientSettings.end())
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return it->second;
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return defaultValue;
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}
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2016-08-04 12:40:33 +00:00
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void Http2Server::connectionEstablished()
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2016-02-26 11:37:24 +00:00
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{
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using namespace Http2;
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2016-12-13 15:26:06 +00:00
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if (testingGOAWAY) {
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auto timer = new QTimer(this);
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timer->setSingleShot(true);
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connect(timer, &QTimer::timeout, [this]() {
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sendGOAWAY(quint32(connectionStreamID), quint32(INTERNAL_ERROR), 0);
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});
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timer->start(goawayTimeout);
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return;
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}
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2016-02-26 11:37:24 +00:00
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connect(socket.data(), SIGNAL(readyRead()),
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this, SLOT(readReady()));
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waitingClientPreface = true;
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waitingClientAck = false;
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waitingClientSettings = false;
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settingsSent = false;
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// We immediately send our settings so that our client
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// can use flow control correctly.
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sendServerSettings();
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if (socket->bytesAvailable())
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readReady();
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}
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void Http2Server::ignoreErrorSlot()
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{
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2016-08-04 12:40:33 +00:00
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#ifndef QT_NO_SSL
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|
static_cast<QSslSocket *>(socket.data())->ignoreSslErrors();
|
|
|
|
|
#endif
|
2016-02-26 11:37:24 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Now HTTP2 "server" part:
|
|
|
|
|
/*
|
|
|
|
|
This code is overly simplified but it tests the basic HTTP2 expected behavior:
|
|
|
|
|
1. CONNECTION PREFACE
|
|
|
|
|
2. SETTINGS
|
|
|
|
|
3. sends our own settings (to modify the flow control)
|
|
|
|
|
4. collects and reports requests
|
|
|
|
|
5. if asked - sends responds to those requests
|
|
|
|
|
6. does some very basic error handling
|
|
|
|
|
7. tests frames validity/stream logic at the very basic level.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
void Http2Server::readReady()
|
|
|
|
|
{
|
|
|
|
|
if (connectionError)
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
if (waitingClientPreface) {
|
|
|
|
|
handleConnectionPreface();
|
|
|
|
|
} else {
|
2016-08-16 14:23:54 +00:00
|
|
|
const auto status = reader.read(*socket);
|
2016-02-26 11:37:24 +00:00
|
|
|
switch (status) {
|
|
|
|
|
case FrameStatus::incompleteFrame:
|
|
|
|
|
break;
|
|
|
|
|
case FrameStatus::goodFrame:
|
|
|
|
|
handleIncomingFrame();
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (socket->bytesAvailable())
|
|
|
|
|
QMetaObject::invokeMethod(this, "readReady", Qt::QueuedConnection);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::handleConnectionPreface()
|
|
|
|
|
{
|
|
|
|
|
Q_ASSERT(waitingClientPreface);
|
|
|
|
|
|
|
|
|
|
if (socket->bytesAvailable() < clientPrefaceLength)
|
|
|
|
|
return; // Wait for more data ...
|
|
|
|
|
|
|
|
|
|
char buf[clientPrefaceLength] = {};
|
|
|
|
|
socket->read(buf, clientPrefaceLength);
|
|
|
|
|
if (std::memcmp(buf, Http2clientPreface, clientPrefaceLength)) {
|
|
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
emit clientPrefaceError();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
waitingClientPreface = false;
|
|
|
|
|
waitingClientSettings = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::handleIncomingFrame()
|
|
|
|
|
{
|
|
|
|
|
// Frames that our implementation can send include:
|
|
|
|
|
// 1. SETTINGS (happens only during connection preface,
|
|
|
|
|
// handled already by this point)
|
|
|
|
|
// 2. SETTIGNS with ACK should be sent only as a response
|
|
|
|
|
// to a server's SETTINGS
|
|
|
|
|
// 3. HEADERS
|
|
|
|
|
// 4. CONTINUATION
|
|
|
|
|
// 5. DATA
|
|
|
|
|
// 6. PING
|
|
|
|
|
// 7. RST_STREAM
|
|
|
|
|
// 8. GOAWAY
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
inboundFrame = std::move(reader.inboundFrame());
|
|
|
|
|
|
2016-02-26 11:37:24 +00:00
|
|
|
if (continuedRequest.size()) {
|
2016-08-16 14:23:54 +00:00
|
|
|
if (inboundFrame.type() != FrameType::CONTINUATION ||
|
|
|
|
|
inboundFrame.streamID() != continuedRequest.front().streamID()) {
|
2016-02-26 11:37:24 +00:00
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
switch (inboundFrame.type()) {
|
2016-02-26 11:37:24 +00:00
|
|
|
case FrameType::SETTINGS:
|
|
|
|
|
handleSETTINGS();
|
|
|
|
|
break;
|
|
|
|
|
case FrameType::HEADERS:
|
|
|
|
|
case FrameType::CONTINUATION:
|
|
|
|
|
continuedRequest.push_back(std::move(inboundFrame));
|
|
|
|
|
processRequest();
|
|
|
|
|
break;
|
|
|
|
|
case FrameType::DATA:
|
|
|
|
|
handleDATA();
|
|
|
|
|
break;
|
|
|
|
|
case FrameType::RST_STREAM:
|
|
|
|
|
// TODO: this is not tested for now.
|
|
|
|
|
break;
|
|
|
|
|
case FrameType::PING:
|
|
|
|
|
// TODO: this is not tested for now.
|
|
|
|
|
break;
|
|
|
|
|
case FrameType::GOAWAY:
|
|
|
|
|
// TODO: this is not tested for now.
|
|
|
|
|
break;
|
|
|
|
|
case FrameType::WINDOW_UPDATE:
|
|
|
|
|
handleWINDOW_UPDATE();
|
|
|
|
|
break;
|
|
|
|
|
default:;
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::handleSETTINGS()
|
|
|
|
|
{
|
|
|
|
|
// SETTINGS is either a part of the connection preface,
|
|
|
|
|
// or a SETTINGS ACK.
|
2016-08-16 14:23:54 +00:00
|
|
|
Q_ASSERT(inboundFrame.type() == FrameType::SETTINGS);
|
2016-02-26 11:37:24 +00:00
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
if (inboundFrame.flags().testFlag(FrameFlag::ACK)) {
|
2016-02-26 11:37:24 +00:00
|
|
|
if (!waitingClientAck || inboundFrame.dataSize()) {
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
waitingClientAck = false;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
waitingClientAck = false;
|
|
|
|
|
emit serverSettingsAcked();
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// QHttp2ProtocolHandler always sends some settings,
|
|
|
|
|
// and the size is a multiple of 6.
|
|
|
|
|
if (!inboundFrame.dataSize() || inboundFrame.dataSize() % 6) {
|
|
|
|
|
sendGOAWAY(connectionStreamID, FRAME_SIZE_ERROR, connectionStreamID);
|
|
|
|
|
emit clientPrefaceError();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const uchar *src = inboundFrame.dataBegin();
|
|
|
|
|
const uchar *end = src + inboundFrame.dataSize();
|
|
|
|
|
|
|
|
|
|
const auto notFound = expectedClientSettings.end();
|
|
|
|
|
|
|
|
|
|
while (src != end) {
|
|
|
|
|
const auto id = qFromBigEndian<quint16>(src);
|
|
|
|
|
const auto value = qFromBigEndian<quint32>(src + 2);
|
|
|
|
|
if (expectedClientSettings.find(id) == notFound ||
|
|
|
|
|
expectedClientSettings[id] != value) {
|
|
|
|
|
emit clientPrefaceError();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
src += 6;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Send SETTINGS ACK:
|
2016-08-16 14:23:54 +00:00
|
|
|
writer.start(FrameType::SETTINGS, FrameFlag::ACK, connectionStreamID);
|
|
|
|
|
writer.write(*socket);
|
2016-02-26 11:37:24 +00:00
|
|
|
waitingClientSettings = false;
|
|
|
|
|
emit clientPrefaceOK();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::handleDATA()
|
|
|
|
|
{
|
2016-08-16 14:23:54 +00:00
|
|
|
Q_ASSERT(inboundFrame.type() == FrameType::DATA);
|
2016-02-26 11:37:24 +00:00
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
const auto streamID = inboundFrame.streamID();
|
2016-02-26 11:37:24 +00:00
|
|
|
|
|
|
|
|
if (!is_valid_client_stream(streamID) ||
|
|
|
|
|
closedStreams.find(streamID) != closedStreams.end()) {
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
const auto payloadSize = inboundFrame.payloadSize();
|
|
|
|
|
if (sessionCurrRecvWindow < payloadSize) {
|
2016-02-26 11:37:24 +00:00
|
|
|
// Client does not respect our session window size!
|
|
|
|
|
emit invalidRequest(streamID);
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, FLOW_CONTROL_ERROR, connectionStreamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
auto it = streamWindows.find(streamID);
|
|
|
|
|
if (it == streamWindows.end())
|
|
|
|
|
it = streamWindows.insert(std::make_pair(streamID, streamRecvWindowSize)).first;
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
|
|
|
|
|
if (it->second < payloadSize) {
|
2016-02-26 11:37:24 +00:00
|
|
|
emit invalidRequest(streamID);
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, FLOW_CONTROL_ERROR, connectionStreamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
it->second -= payloadSize;
|
2016-02-26 11:37:24 +00:00
|
|
|
if (it->second < streamRecvWindowSize / 2) {
|
|
|
|
|
sendWINDOW_UPDATE(streamID, streamRecvWindowSize / 2);
|
|
|
|
|
it->second += streamRecvWindowSize / 2;
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
sessionCurrRecvWindow -= payloadSize;
|
2016-02-26 11:37:24 +00:00
|
|
|
|
|
|
|
|
if (sessionCurrRecvWindow < sessionRecvWindowSize / 2) {
|
|
|
|
|
// This is some quite naive and trivial logic on when to update.
|
|
|
|
|
|
|
|
|
|
sendWINDOW_UPDATE(connectionStreamID, sessionRecvWindowSize / 2);
|
|
|
|
|
sessionCurrRecvWindow += sessionRecvWindowSize / 2;
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
if (inboundFrame.flags().testFlag(FrameFlag::END_STREAM)) {
|
2016-02-26 11:37:24 +00:00
|
|
|
closedStreams.insert(streamID); // Enter "half-closed remote" state.
|
|
|
|
|
streamWindows.erase(it);
|
|
|
|
|
emit receivedData(streamID);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::handleWINDOW_UPDATE()
|
|
|
|
|
{
|
2016-08-16 14:23:54 +00:00
|
|
|
const auto streamID = inboundFrame.streamID();
|
2016-02-26 11:37:24 +00:00
|
|
|
if (!streamID) // We ignore this for now to keep things simple.
|
|
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
if (streamID && suspendedStreams.find(streamID) == suspendedStreams.end()) {
|
|
|
|
|
if (closedStreams.find(streamID) == closedStreams.end()) {
|
|
|
|
|
sendRST_STREAM(streamID, PROTOCOL_ERROR);
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
const quint32 delta = qFromBigEndian<quint32>(inboundFrame.dataBegin());
|
|
|
|
|
if (!delta || delta > quint32(std::numeric_limits<qint32>::max())) {
|
|
|
|
|
sendRST_STREAM(streamID, PROTOCOL_ERROR);
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
emit windowUpdate(streamID);
|
|
|
|
|
sendDATA(streamID, delta);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::sendResponse(quint32 streamID, bool emptyBody)
|
|
|
|
|
{
|
|
|
|
|
Q_ASSERT(activeRequests.find(streamID) != activeRequests.end());
|
|
|
|
|
|
2016-10-10 13:29:26 +00:00
|
|
|
const quint32 maxFrameSize(clientSetting(Settings::MAX_FRAME_SIZE_ID,
|
|
|
|
|
Http2::maxFrameSize));
|
|
|
|
|
|
|
|
|
|
if (pushPromiseEnabled) {
|
|
|
|
|
// A real server supporting PUSH_PROMISE will probably first send
|
|
|
|
|
// PUSH_PROMISE and then a normal response (to a real request),
|
|
|
|
|
// so that a client parsing this response and discovering another
|
|
|
|
|
// resource it needs, will _already_ have this additional resource
|
|
|
|
|
// in PUSH_PROMISE.
|
|
|
|
|
lastPromisedStream += 2;
|
|
|
|
|
|
|
|
|
|
writer.start(FrameType::PUSH_PROMISE, FrameFlag::END_HEADERS, streamID);
|
|
|
|
|
writer.append(lastPromisedStream);
|
|
|
|
|
|
|
|
|
|
HttpHeader pushHeader;
|
|
|
|
|
fill_push_header(activeRequests[streamID], pushHeader);
|
|
|
|
|
pushHeader.push_back(HeaderField(":method", "GET"));
|
|
|
|
|
pushHeader.push_back(HeaderField(":path", pushPath));
|
|
|
|
|
|
|
|
|
|
// Now interesting part, let's make it into 'stream':
|
|
|
|
|
activeRequests[lastPromisedStream] = pushHeader;
|
|
|
|
|
|
|
|
|
|
HPack::BitOStream ostream(writer.outboundFrame().buffer);
|
|
|
|
|
const bool result = encoder.encodeRequest(ostream, pushHeader);
|
|
|
|
|
Q_ASSERT(result);
|
|
|
|
|
|
|
|
|
|
// Well, it's not HEADERS, it's PUSH_PROMISE with ... HEADERS block.
|
|
|
|
|
// Should work.
|
|
|
|
|
writer.writeHEADERS(*socket, maxFrameSize);
|
|
|
|
|
qDebug() << "server sent a PUSH_PROMISE on" << lastPromisedStream;
|
|
|
|
|
|
|
|
|
|
if (responseBody.isEmpty())
|
|
|
|
|
responseBody = QByteArray("I PROMISE (AND PUSH) YOU ...");
|
|
|
|
|
|
|
|
|
|
// Now we send this promised data as a normal response on our reserved
|
|
|
|
|
// stream (disabling PUSH_PROMISE for the moment to avoid recursion):
|
|
|
|
|
pushPromiseEnabled = false;
|
|
|
|
|
sendResponse(lastPromisedStream, false);
|
|
|
|
|
pushPromiseEnabled = true;
|
|
|
|
|
// Now we'll continue with _normal_ response.
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
writer.start(FrameType::HEADERS, FrameFlag::END_HEADERS, streamID);
|
2016-02-26 11:37:24 +00:00
|
|
|
if (emptyBody)
|
2016-08-16 14:23:54 +00:00
|
|
|
writer.addFlag(FrameFlag::END_STREAM);
|
2016-02-26 11:37:24 +00:00
|
|
|
|
|
|
|
|
HttpHeader header = {{":status", "200"}};
|
|
|
|
|
if (!emptyBody) {
|
|
|
|
|
header.push_back(HPack::HeaderField("content-length",
|
|
|
|
|
QString("%1").arg(responseBody.size()).toLatin1()));
|
|
|
|
|
}
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
HPack::BitOStream ostream(writer.outboundFrame().buffer);
|
2016-02-26 11:37:24 +00:00
|
|
|
const bool result = encoder.encodeResponse(ostream, header);
|
|
|
|
|
Q_ASSERT(result);
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
writer.writeHEADERS(*socket, maxFrameSize);
|
2016-02-26 11:37:24 +00:00
|
|
|
|
|
|
|
|
if (!emptyBody) {
|
|
|
|
|
Q_ASSERT(suspendedStreams.find(streamID) == suspendedStreams.end());
|
|
|
|
|
|
|
|
|
|
const quint32 windowSize = clientSetting(Settings::INITIAL_WINDOW_SIZE_ID,
|
|
|
|
|
Http2::defaultSessionWindowSize);
|
|
|
|
|
// Suspend to immediately resume it.
|
|
|
|
|
suspendedStreams[streamID] = 0; // start sending from offset 0
|
|
|
|
|
sendDATA(streamID, windowSize);
|
|
|
|
|
} else {
|
|
|
|
|
activeRequests.erase(streamID);
|
|
|
|
|
closedStreams.insert(streamID);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
void Http2Server::processRequest()
|
|
|
|
|
{
|
|
|
|
|
Q_ASSERT(continuedRequest.size());
|
|
|
|
|
|
2016-08-16 14:23:54 +00:00
|
|
|
if (!continuedRequest.back().flags().testFlag(FrameFlag::END_HEADERS))
|
2016-02-26 11:37:24 +00:00
|
|
|
return;
|
|
|
|
|
|
|
|
|
|
// We test here:
|
|
|
|
|
// 1. stream is 'idle'.
|
|
|
|
|
// 2. has priority set and dependency (it's 0x0 at the moment).
|
|
|
|
|
// 3. header can be decompressed.
|
|
|
|
|
const auto &headersFrame = continuedRequest.front();
|
2016-08-16 14:23:54 +00:00
|
|
|
const auto streamID = headersFrame.streamID();
|
2016-02-26 11:37:24 +00:00
|
|
|
if (!is_valid_client_stream(streamID)) {
|
|
|
|
|
emit invalidRequest(streamID);
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (closedStreams.find(streamID) != closedStreams.end()) {
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
quint32 dep = 0;
|
|
|
|
|
uchar w = 0;
|
|
|
|
|
if (!headersFrame.priority(&dep, &w)) {
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
sendRST_STREAM(streamID, PROTOCOL_ERROR);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Assemble headers ...
|
|
|
|
|
quint32 totalSize = 0;
|
|
|
|
|
for (const auto &frame : continuedRequest) {
|
|
|
|
|
if (std::numeric_limits<quint32>::max() - frame.dataSize() < totalSize) {
|
|
|
|
|
// Resulted in overflow ...
|
|
|
|
|
emit invalidFrame();
|
|
|
|
|
connectionError = true;
|
|
|
|
|
sendGOAWAY(connectionStreamID, PROTOCOL_ERROR, connectionStreamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
totalSize += frame.dataSize();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
std::vector<uchar> hpackBlock(totalSize);
|
|
|
|
|
auto dst = hpackBlock.begin();
|
|
|
|
|
for (const auto &frame : continuedRequest) {
|
|
|
|
|
if (!frame.dataSize())
|
|
|
|
|
continue;
|
|
|
|
|
std::copy(frame.dataBegin(), frame.dataBegin() + frame.dataSize(), dst);
|
|
|
|
|
dst += frame.dataSize();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
HPack::BitIStream inputStream{&hpackBlock[0], &hpackBlock[0] + hpackBlock.size()};
|
|
|
|
|
|
|
|
|
|
if (!decoder.decodeHeaderFields(inputStream)) {
|
|
|
|
|
emit decompressionFailed(streamID);
|
|
|
|
|
sendRST_STREAM(streamID, COMPRESSION_ERROR);
|
|
|
|
|
closedStreams.insert(streamID);
|
|
|
|
|
return;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
// Actually, if needed, we can do a comparison here.
|
|
|
|
|
activeRequests[streamID] = decoder.decodedHeader();
|
2016-08-16 14:23:54 +00:00
|
|
|
if (headersFrame.flags().testFlag(FrameFlag::END_STREAM))
|
2016-02-26 11:37:24 +00:00
|
|
|
emit receivedRequest(streamID);
|
|
|
|
|
// else - we're waiting for incoming DATA frames ...
|
2016-08-17 10:44:16 +00:00
|
|
|
continuedRequest.clear();
|
2016-02-26 11:37:24 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
QT_END_NAMESPACE
|
