SNode.C
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Transmitter.h
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1/*
2 * SNode.C - A Slim Toolkit for Network Communication
3 * Copyright (C) Volker Christian <me@vchrist.at>
4 * 2020, 2021, 2022, 2023, 2024, 2025
5 *
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU Lesser General Public License as published
8 * by the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19
20/*
21 * MIT License
22 *
23 * Permission is hereby granted, free of charge, to any person obtaining a copy
24 * of this software and associated documentation files (the "Software"), to deal
25 * in the Software without restriction, including without limitation the rights
26 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
27 * copies of the Software, and to permit persons to whom the Software is
28 * furnished to do so, subject to the following conditions:
29 *
30 * The above copyright notice and this permission notice shall be included in
31 * all copies or substantial portions of the Software.
32 *
33 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
34 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
35 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
36 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
37 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
38 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
39 * THE SOFTWARE.
40 */
41
42#ifndef WEB_WEBSOCKET_TRANSMITTER_H
43#define WEB_WEBSOCKET_TRANSMITTER_H
44
45#ifndef DOXYGEN_SHOULD_SKIP_THIS
46
47#include <cstddef>
48#include <cstdint>
49#include <random>
50
51#endif /* DOXYGEN_SHOULD_SKIP_THIS */
52
53namespace web::websocket {
54
56 public:
57 Transmitter() = delete;
58
59 Transmitter(const Transmitter&) = delete;
60 Transmitter& operator=(const Transmitter&) = delete;
61
62 virtual ~Transmitter();
63
64 protected:
65 Transmitter(bool masking);
66
67 void sendMessage(uint8_t opCode, const char* message, std::size_t messageLength);
68
69 void sendMessageStart(uint8_t opCode, const char* message, std::size_t messageLength);
70 void sendMessageFrame(const char* message, std::size_t messageLength);
71 void sendMessageEnd(const char* message, std::size_t messageLength);
72
73 std::size_t getPayloadTotalSent() const;
74
75 private:
76 void send(bool end, uint8_t opCode, const char* message, std::size_t messageLength);
77
78 void sendFrame(bool fin, uint8_t opCode, const char* payload, uint64_t payloadLength);
79
80 void sendFrameData(uint8_t data) const;
81 void sendFrameData(uint16_t data) const;
82 void sendFrameData(uint32_t data) const;
83 void sendFrameData(uint64_t data) const;
84 void sendFrameData(const char* frame, uint64_t frameLength) const;
85
86 virtual void sendFrameChunk(const char* data, std::size_t dataLength) const = 0;
87
88 std::random_device randomDevice;
89 std::uniform_int_distribution<uint32_t> distribution{0, UINT32_MAX};
90
91 bool masking = false;
92
93 protected:
94 bool closeSent = false;
95
96 private:
97 std::size_t payloadTotalSent = 0;
98 };
99
100} // namespace web::websocket
101
102#endif // WEB_WEBSOCKET_TRANSMITTER_H
virtual std::size_t recv(char *chunk, std::size_t chunklen)=0
std::size_t onReceivedFromPeer()
MqttContext(const MqttContext &)=default
MqttContext & operator=(const MqttContext &)=default
virtual void send(const char *chunk, std::size_t chunklen)=0
virtual core::socket::stream::SocketConnection * getSocketConnection() const =0
virtual void end(bool fatal=false)=0
virtual void close()=0
void onEvent(const utils::Timeval &currentTime) override
OnReceivedFromPeerEvent(const std::function< void(const utils::Timeval &)> &onReceivedFromPeer)
std::function< void(const utils::Timeval &)> onReceivedFromPeer
Definition SubProtocol.h:79
void onMessageError(uint16_t errnum) override
bool onSignal(int sig) override
void send(const char *chunk, std::size_t chunklen) override
void onDisconnected() override
void onConnected() override
void close() override
void end(bool fatal=false) override
core::socket::stream::SocketConnection * getSocketConnection() const override
std::size_t recv(char *chunk, std::size_t chunklen) override
std::vector< char > buffer
OnReceivedFromPeerEvent onReceivedFromPeerEvent
void onMessageData(const char *chunk, std::size_t chunkLen) override
SubProtocol(web::websocket::SubProtocolContext *subProtocolContext, const std::string &name, iot::mqtt::Mqtt *mqtt)
void onMessageEnd() override
void onMessageStart(int opCode) override
~SubProtocol() override=default
std::size_t readELength2()
Definition Receiver.cpp:180
virtual void onMessageEnd()=0
std::size_t receive()
Definition Receiver.cpp:67
virtual void onMessageStart(int opCode)=0
std::size_t readLength()
Definition Receiver.cpp:138
std::size_t readMaskingKey()
Definition Receiver.cpp:242
Receiver & operator=(const Receiver &)=delete
std::size_t readELength()
Definition Receiver.cpp:216
Receiver(bool maskingExpected)
Definition Receiver.cpp:60
std::size_t readFrameData(char *chunk, std::size_t chunkLen)
Definition Receiver.cpp:108
virtual void onMessageData(const char *chunk, uint64_t chunkLen)=0
virtual std::size_t readFrameChunk(char *chunk, std::size_t chunkLen) const =0
virtual void onMessageError(uint16_t errnum)=0
std::size_t readPayload()
Definition Receiver.cpp:267
Receiver(const Receiver &)=delete
std::size_t readOpcode()
Definition Receiver.cpp:112
std::size_t readELength8()
Definition Receiver.cpp:198
std::size_t payloadTotalRead
Definition Receiver.h:122
std::size_t getPayloadTotalRead() const
Definition Receiver.cpp:104
virtual void sendMessage(uint8_t opCode, const char *message, std::size_t messageLength)=0
virtual void sendPing(const char *reason=nullptr, std::size_t reasonLength=0)=0
virtual std::size_t getPayloadTotalSent() const =0
virtual void sendMessageFrame(const char *message, std::size_t messageLength)=0
SubProtocolContext & operator=(const SubProtocolContext &)=delete
virtual void sendPong(const char *reason=nullptr, std::size_t reasonLength=0)=0
virtual std::string getOnlineSince() const =0
virtual void sendClose(const char *message, std::size_t messageLength)=0
virtual std::size_t getPayloadTotalRead() const =0
virtual void sendMessageEnd(const char *message, std::size_t messageLength)=0
virtual void sendClose(uint16_t statusCode=1000, const char *reason=nullptr, std::size_t reasonLength=0)=0
virtual void sendMessageStart(uint8_t opCode, const char *message, std::size_t messageLength)=0
virtual core::socket::stream::SocketConnection * getSocketConnection() const =0
virtual std::string getOnlineDuration() const =0
SubProtocolContext(const SubProtocolContext &)=delete
void sendMessageEnd(const char *message, std::size_t messageLength)
void sendFrameData(const char *frame, uint64_t frameLength) const
Transmitter & operator=(const Transmitter &)=delete
std::random_device randomDevice
Definition Transmitter.h:88
void sendFrameData(uint8_t data) const
void sendFrameData(uint16_t data) const
void sendMessage(uint8_t opCode, const char *message, std::size_t messageLength)
void sendFrameData(uint32_t data) const
virtual void sendFrameChunk(const char *data, std::size_t dataLength) const =0
void send(bool end, uint8_t opCode, const char *message, std::size_t messageLength)
void sendFrame(bool fin, uint8_t opCode, const char *payload, uint64_t payloadLength)
void sendFrameData(uint64_t data) const
std::uniform_int_distribution< uint32_t > distribution
Definition Transmitter.h:89
Transmitter(const Transmitter &)=delete
std::size_t getPayloadTotalSent() const
void sendMessageStart(uint8_t opCode, const char *message, std::size_t messageLength)
void sendMessageFrame(const char *message, std::size_t messageLength)
sighandler_t signal(int sig, sighandler_t handler)
Definition signal.cpp:54
std::string sigabbrev_np(int sig)
Definition signal.cpp:59
std::string hexDump(const std::vector< char > &bytes, int prefixLength, bool prefixAtFirstLine)
Definition hexdump.cpp:58