Update AsyncMqttClient

This commit is contained in:
cschwinne 2022-09-24 00:52:53 +02:00
parent 5f606bb0b7
commit 47d2218efd
34 changed files with 13 additions and 1854 deletions

14
.vscode/tasks.json vendored
View File

@ -9,8 +9,8 @@
],
"dependsOrder": "sequence",
"problemMatcher": [
"$platformio",
],
"$platformio"
]
},
{
"type": "PlatformIO",
@ -18,7 +18,7 @@
"task": "Build",
"group": {
"kind": "build",
"isDefault": true,
"isDefault": true
},
"problemMatcher": [
"$platformio"
@ -37,6 +37,14 @@
"presentation": {
"panel": "shared"
}
},
{
"type": "PlatformIO",
"task": "Verbose Build",
"problemMatcher": [
"$platformio"
],
"label": "PlatformIO: Verbose Build"
}
]
}

View File

@ -164,6 +164,7 @@ lib_deps =
fastled/FastLED @ 3.5.0
IRremoteESP8266 @ 2.8.2
https://github.com/Aircoookie/ESPAsyncWebServer.git @ ~2.0.5
marvinroger/AsyncMqttClient@^0.9.0
#For use of the TTGO T-Display ESP32 Module with integrated TFT display uncomment the following line
#TFT_eSPI
#For use SSD1306 OLED display uncomment following

View File

@ -1,877 +0,0 @@
#include "AsyncMqttClient.hpp"
AsyncMqttClient::AsyncMqttClient()
: _connected(false)
, _connectPacketNotEnoughSpace(false)
, _disconnectFlagged(false)
, _tlsBadFingerprint(false)
, _lastClientActivity(0)
, _lastServerActivity(0)
, _lastPingRequestTime(0)
, _host(nullptr)
, _useIp(false)
#if ASYNC_TCP_SSL_ENABLED
, _secure(false)
#endif
, _port(0)
, _keepAlive(15)
, _cleanSession(true)
, _clientId(nullptr)
, _username(nullptr)
, _password(nullptr)
, _willTopic(nullptr)
, _willPayload(nullptr)
, _willPayloadLength(0)
, _willQos(0)
, _willRetain(false)
, _parsingInformation { .bufferState = AsyncMqttClientInternals::BufferState::NONE }
, _currentParsedPacket(nullptr)
, _remainingLengthBufferPosition(0)
, _nextPacketId(1) {
_client.onConnect([](void* obj, AsyncClient* c) { (static_cast<AsyncMqttClient*>(obj))->_onConnect(c); }, this);
_client.onDisconnect([](void* obj, AsyncClient* c) { (static_cast<AsyncMqttClient*>(obj))->_onDisconnect(c); }, this);
_client.onError([](void* obj, AsyncClient* c, int8_t error) { (static_cast<AsyncMqttClient*>(obj))->_onError(c, error); }, this);
_client.onTimeout([](void* obj, AsyncClient* c, uint32_t time) { (static_cast<AsyncMqttClient*>(obj))->_onTimeout(c, time); }, this);
_client.onAck([](void* obj, AsyncClient* c, size_t len, uint32_t time) { (static_cast<AsyncMqttClient*>(obj))->_onAck(c, len, time); }, this);
_client.onData([](void* obj, AsyncClient* c, void* data, size_t len) { (static_cast<AsyncMqttClient*>(obj))->_onData(c, static_cast<char*>(data), len); }, this);
_client.onPoll([](void* obj, AsyncClient* c) { (static_cast<AsyncMqttClient*>(obj))->_onPoll(c); }, this);
#ifdef ESP32
sprintf(_generatedClientId, "esp32%06x", (uint32_t)ESP.getEfuseMac());
_xSemaphore = xSemaphoreCreateMutex();
#elif defined(ESP8266)
sprintf(_generatedClientId, "esp8266%06x", (uint32_t)ESP.getChipId());
#endif
_clientId = _generatedClientId;
setMaxTopicLength(128);
}
AsyncMqttClient::~AsyncMqttClient() {
delete _currentParsedPacket;
delete[] _parsingInformation.topicBuffer;
#ifdef ESP32
vSemaphoreDelete(_xSemaphore);
#endif
}
AsyncMqttClient& AsyncMqttClient::setKeepAlive(uint16_t keepAlive) {
_keepAlive = keepAlive;
return *this;
}
AsyncMqttClient& AsyncMqttClient::setClientId(const char* clientId) {
_clientId = clientId;
return *this;
}
AsyncMqttClient& AsyncMqttClient::setCleanSession(bool cleanSession) {
_cleanSession = cleanSession;
return *this;
}
AsyncMqttClient& AsyncMqttClient::setMaxTopicLength(uint16_t maxTopicLength) {
_parsingInformation.maxTopicLength = maxTopicLength;
delete[] _parsingInformation.topicBuffer;
_parsingInformation.topicBuffer = new char[maxTopicLength + 1];
return *this;
}
AsyncMqttClient& AsyncMqttClient::setCredentials(const char* username, const char* password) {
_username = username;
_password = password;
return *this;
}
AsyncMqttClient& AsyncMqttClient::setWill(const char* topic, uint8_t qos, bool retain, const char* payload, size_t length) {
_willTopic = topic;
_willQos = qos;
_willRetain = retain;
_willPayload = payload;
_willPayloadLength = length;
return *this;
}
AsyncMqttClient& AsyncMqttClient::setServer(IPAddress ip, uint16_t port) {
_useIp = true;
_ip = ip;
_port = port;
return *this;
}
AsyncMqttClient& AsyncMqttClient::setServer(const char* host, uint16_t port) {
_useIp = false;
_host = host;
_port = port;
return *this;
}
#if ASYNC_TCP_SSL_ENABLED
AsyncMqttClient& AsyncMqttClient::setSecure(bool secure) {
_secure = secure;
return *this;
}
AsyncMqttClient& AsyncMqttClient::addServerFingerprint(const uint8_t* fingerprint) {
std::array<uint8_t, SHA1_SIZE> newFingerprint;
memcpy(newFingerprint.data(), fingerprint, SHA1_SIZE);
_secureServerFingerprints.push_back(newFingerprint);
return *this;
}
#endif
AsyncMqttClient& AsyncMqttClient::onConnect(AsyncMqttClientInternals::OnConnectUserCallback callback) {
_onConnectUserCallbacks.push_back(callback);
return *this;
}
AsyncMqttClient& AsyncMqttClient::onDisconnect(AsyncMqttClientInternals::OnDisconnectUserCallback callback) {
_onDisconnectUserCallbacks.push_back(callback);
return *this;
}
AsyncMqttClient& AsyncMqttClient::onSubscribe(AsyncMqttClientInternals::OnSubscribeUserCallback callback) {
_onSubscribeUserCallbacks.push_back(callback);
return *this;
}
AsyncMqttClient& AsyncMqttClient::onUnsubscribe(AsyncMqttClientInternals::OnUnsubscribeUserCallback callback) {
_onUnsubscribeUserCallbacks.push_back(callback);
return *this;
}
AsyncMqttClient& AsyncMqttClient::onMessage(AsyncMqttClientInternals::OnMessageUserCallback callback) {
_onMessageUserCallbacks.push_back(callback);
return *this;
}
AsyncMqttClient& AsyncMqttClient::onPublish(AsyncMqttClientInternals::OnPublishUserCallback callback) {
_onPublishUserCallbacks.push_back(callback);
return *this;
}
void AsyncMqttClient::_freeCurrentParsedPacket() {
delete _currentParsedPacket;
_currentParsedPacket = nullptr;
}
void AsyncMqttClient::_clear() {
_lastPingRequestTime = 0;
_connected = false;
_disconnectFlagged = false;
_connectPacketNotEnoughSpace = false;
_tlsBadFingerprint = false;
_freeCurrentParsedPacket();
_pendingPubRels.clear();
_pendingPubRels.shrink_to_fit();
_toSendAcks.clear();
_toSendAcks.shrink_to_fit();
_nextPacketId = 1;
_parsingInformation.bufferState = AsyncMqttClientInternals::BufferState::NONE;
}
/* TCP */
void AsyncMqttClient::_onConnect(AsyncClient* client) {
(void)client;
#if ASYNC_TCP_SSL_ENABLED
if (_secure && _secureServerFingerprints.size() > 0) {
SSL* clientSsl = _client.getSSL();
bool sslFoundFingerprint = false;
for (std::array<uint8_t, SHA1_SIZE> fingerprint : _secureServerFingerprints) {
if (ssl_match_fingerprint(clientSsl, fingerprint.data()) == SSL_OK) {
sslFoundFingerprint = true;
break;
}
}
if (!sslFoundFingerprint) {
_tlsBadFingerprint = true;
_client.close(true);
return;
}
}
#endif
char fixedHeader[5];
fixedHeader[0] = AsyncMqttClientInternals::PacketType.CONNECT;
fixedHeader[0] = fixedHeader[0] << 4;
fixedHeader[0] = fixedHeader[0] | AsyncMqttClientInternals::HeaderFlag.CONNECT_RESERVED;
uint16_t protocolNameLength = 4;
char protocolNameLengthBytes[2];
protocolNameLengthBytes[0] = protocolNameLength >> 8;
protocolNameLengthBytes[1] = protocolNameLength & 0xFF;
char protocolLevel[1];
protocolLevel[0] = 0x04;
char connectFlags[1];
connectFlags[0] = 0;
if (_cleanSession) connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.CLEAN_SESSION;
if (_username != nullptr) connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.USERNAME;
if (_password != nullptr) connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.PASSWORD;
if (_willTopic != nullptr) {
connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.WILL;
if (_willRetain) connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.WILL_RETAIN;
switch (_willQos) {
case 0:
connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.WILL_QOS0;
break;
case 1:
connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.WILL_QOS1;
break;
case 2:
connectFlags[0] |= AsyncMqttClientInternals::ConnectFlag.WILL_QOS2;
break;
}
}
char keepAliveBytes[2];
keepAliveBytes[0] = _keepAlive >> 8;
keepAliveBytes[1] = _keepAlive & 0xFF;
uint16_t clientIdLength = strlen(_clientId);
char clientIdLengthBytes[2];
clientIdLengthBytes[0] = clientIdLength >> 8;
clientIdLengthBytes[1] = clientIdLength & 0xFF;
// Optional fields
uint16_t willTopicLength = 0;
char willTopicLengthBytes[2];
uint16_t willPayloadLength = _willPayloadLength;
char willPayloadLengthBytes[2];
if (_willTopic != nullptr) {
willTopicLength = strlen(_willTopic);
willTopicLengthBytes[0] = willTopicLength >> 8;
willTopicLengthBytes[1] = willTopicLength & 0xFF;
if (_willPayload != nullptr && willPayloadLength == 0) willPayloadLength = strlen(_willPayload);
willPayloadLengthBytes[0] = willPayloadLength >> 8;
willPayloadLengthBytes[1] = willPayloadLength & 0xFF;
}
uint16_t usernameLength = 0;
char usernameLengthBytes[2];
if (_username != nullptr) {
usernameLength = strlen(_username);
usernameLengthBytes[0] = usernameLength >> 8;
usernameLengthBytes[1] = usernameLength & 0xFF;
}
uint16_t passwordLength = 0;
char passwordLengthBytes[2];
if (_password != nullptr) {
passwordLength = strlen(_password);
passwordLengthBytes[0] = passwordLength >> 8;
passwordLengthBytes[1] = passwordLength & 0xFF;
}
uint32_t remainingLength = 2 + protocolNameLength + 1 + 1 + 2 + 2 + clientIdLength; // always present
if (_willTopic != nullptr) remainingLength += 2 + willTopicLength + 2 + willPayloadLength;
if (_username != nullptr) remainingLength += 2 + usernameLength;
if (_password != nullptr) remainingLength += 2 + passwordLength;
uint8_t remainingLengthLength = AsyncMqttClientInternals::Helpers::encodeRemainingLength(remainingLength, fixedHeader + 1);
uint32_t neededSpace = 1 + remainingLengthLength;
neededSpace += 2;
neededSpace += protocolNameLength;
neededSpace += 1;
neededSpace += 1;
neededSpace += 2;
neededSpace += 2;
neededSpace += clientIdLength;
if (_willTopic != nullptr) {
neededSpace += 2;
neededSpace += willTopicLength;
neededSpace += 2;
if (_willPayload != nullptr) neededSpace += willPayloadLength;
}
if (_username != nullptr) {
neededSpace += 2;
neededSpace += usernameLength;
}
if (_password != nullptr) {
neededSpace += 2;
neededSpace += passwordLength;
}
SEMAPHORE_TAKE();
if (_client.space() < neededSpace) {
_connectPacketNotEnoughSpace = true;
_client.close(true);
SEMAPHORE_GIVE();
return;
}
_client.add(fixedHeader, 1 + remainingLengthLength);
_client.add(protocolNameLengthBytes, 2);
_client.add("MQTT", protocolNameLength);
_client.add(protocolLevel, 1);
_client.add(connectFlags, 1);
_client.add(keepAliveBytes, 2);
_client.add(clientIdLengthBytes, 2);
_client.add(_clientId, clientIdLength);
if (_willTopic != nullptr) {
_client.add(willTopicLengthBytes, 2);
_client.add(_willTopic, willTopicLength);
_client.add(willPayloadLengthBytes, 2);
if (_willPayload != nullptr) _client.add(_willPayload, willPayloadLength);
}
if (_username != nullptr) {
_client.add(usernameLengthBytes, 2);
_client.add(_username, usernameLength);
}
if (_password != nullptr) {
_client.add(passwordLengthBytes, 2);
_client.add(_password, passwordLength);
}
_client.send();
_lastClientActivity = millis();
SEMAPHORE_GIVE();
}
void AsyncMqttClient::_onDisconnect(AsyncClient* client) {
(void)client;
if (!_disconnectFlagged) {
AsyncMqttClientDisconnectReason reason;
if (_connectPacketNotEnoughSpace) {
reason = AsyncMqttClientDisconnectReason::ESP8266_NOT_ENOUGH_SPACE;
} else if (_tlsBadFingerprint) {
reason = AsyncMqttClientDisconnectReason::TLS_BAD_FINGERPRINT;
} else {
reason = AsyncMqttClientDisconnectReason::TCP_DISCONNECTED;
}
for (auto callback : _onDisconnectUserCallbacks) callback(reason);
}
_clear();
}
void AsyncMqttClient::_onError(AsyncClient* client, int8_t error) {
(void)client;
(void)error;
// _onDisconnect called anyway
}
void AsyncMqttClient::_onTimeout(AsyncClient* client, uint32_t time) {
(void)client;
(void)time;
// disconnection will be handled by ping/pong management
}
void AsyncMqttClient::_onAck(AsyncClient* client, size_t len, uint32_t time) {
(void)client;
(void)len;
(void)time;
}
void AsyncMqttClient::_onData(AsyncClient* client, char* data, size_t len) {
(void)client;
size_t currentBytePosition = 0;
char currentByte;
do {
switch (_parsingInformation.bufferState) {
case AsyncMqttClientInternals::BufferState::NONE:
currentByte = data[currentBytePosition++];
_parsingInformation.packetType = currentByte >> 4;
_parsingInformation.packetFlags = (currentByte << 4) >> 4;
_parsingInformation.bufferState = AsyncMqttClientInternals::BufferState::REMAINING_LENGTH;
_lastServerActivity = millis();
switch (_parsingInformation.packetType) {
case AsyncMqttClientInternals::PacketType.CONNACK:
_currentParsedPacket = new AsyncMqttClientInternals::ConnAckPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onConnAck, this, std::placeholders::_1, std::placeholders::_2));
break;
case AsyncMqttClientInternals::PacketType.PINGRESP:
_currentParsedPacket = new AsyncMqttClientInternals::PingRespPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onPingResp, this));
break;
case AsyncMqttClientInternals::PacketType.SUBACK:
_currentParsedPacket = new AsyncMqttClientInternals::SubAckPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onSubAck, this, std::placeholders::_1, std::placeholders::_2));
break;
case AsyncMqttClientInternals::PacketType.UNSUBACK:
_currentParsedPacket = new AsyncMqttClientInternals::UnsubAckPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onUnsubAck, this, std::placeholders::_1));
break;
case AsyncMqttClientInternals::PacketType.PUBLISH:
_currentParsedPacket = new AsyncMqttClientInternals::PublishPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onMessage, this, std::placeholders::_1, std::placeholders::_2, std::placeholders::_3, std::placeholders::_4, std::placeholders::_5, std::placeholders::_6, std::placeholders::_7, std::placeholders::_8, std::placeholders::_9), std::bind(&AsyncMqttClient::_onPublish, this, std::placeholders::_1, std::placeholders::_2));
break;
case AsyncMqttClientInternals::PacketType.PUBREL:
_currentParsedPacket = new AsyncMqttClientInternals::PubRelPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onPubRel, this, std::placeholders::_1));
break;
case AsyncMqttClientInternals::PacketType.PUBACK:
_currentParsedPacket = new AsyncMqttClientInternals::PubAckPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onPubAck, this, std::placeholders::_1));
break;
case AsyncMqttClientInternals::PacketType.PUBREC:
_currentParsedPacket = new AsyncMqttClientInternals::PubRecPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onPubRec, this, std::placeholders::_1));
break;
case AsyncMqttClientInternals::PacketType.PUBCOMP:
_currentParsedPacket = new AsyncMqttClientInternals::PubCompPacket(&_parsingInformation, std::bind(&AsyncMqttClient::_onPubComp, this, std::placeholders::_1));
break;
default:
break;
}
break;
case AsyncMqttClientInternals::BufferState::REMAINING_LENGTH:
currentByte = data[currentBytePosition++];
_remainingLengthBuffer[_remainingLengthBufferPosition++] = currentByte;
if (currentByte >> 7 == 0) {
_parsingInformation.remainingLength = AsyncMqttClientInternals::Helpers::decodeRemainingLength(_remainingLengthBuffer);
_remainingLengthBufferPosition = 0;
if (_parsingInformation.remainingLength > 0) {
_parsingInformation.bufferState = AsyncMqttClientInternals::BufferState::VARIABLE_HEADER;
} else {
// PINGRESP is a special case where it has no variable header, so the packet ends right here
_parsingInformation.bufferState = AsyncMqttClientInternals::BufferState::NONE;
_onPingResp();
}
}
break;
case AsyncMqttClientInternals::BufferState::VARIABLE_HEADER:
_currentParsedPacket->parseVariableHeader(data, len, &currentBytePosition);
break;
case AsyncMqttClientInternals::BufferState::PAYLOAD:
_currentParsedPacket->parsePayload(data, len, &currentBytePosition);
break;
default:
currentBytePosition = len;
}
} while (currentBytePosition != len);
}
void AsyncMqttClient::_onPoll(AsyncClient* client) {
if (!_connected) return;
// if there is too much time the client has sent a ping request without a response, disconnect client to avoid half open connections
if (_lastPingRequestTime != 0 && (millis() - _lastPingRequestTime) >= (_keepAlive * 1000 * 2)) {
disconnect();
return;
// send ping to ensure the server will receive at least one message inside keepalive window
} else if (_lastPingRequestTime == 0 && (millis() - _lastClientActivity) >= (_keepAlive * 1000 * 0.7)) {
_sendPing();
// send ping to verify if the server is still there (ensure this is not a half connection)
} else if (_connected && _lastPingRequestTime == 0 && (millis() - _lastServerActivity) >= (_keepAlive * 1000 * 0.7)) {
_sendPing();
}
// handle to send ack packets
_sendAcks();
// handle disconnect
if (_disconnectFlagged) {
_sendDisconnect();
}
}
/* MQTT */
void AsyncMqttClient::_onPingResp() {
_freeCurrentParsedPacket();
_lastPingRequestTime = 0;
}
void AsyncMqttClient::_onConnAck(bool sessionPresent, uint8_t connectReturnCode) {
(void)sessionPresent;
_freeCurrentParsedPacket();
if (connectReturnCode == 0) {
_connected = true;
for (auto callback : _onConnectUserCallbacks) callback(sessionPresent);
} else {
for (auto callback : _onDisconnectUserCallbacks) callback(static_cast<AsyncMqttClientDisconnectReason>(connectReturnCode));
_disconnectFlagged = true;
}
}
void AsyncMqttClient::_onSubAck(uint16_t packetId, char status) {
_freeCurrentParsedPacket();
for (auto callback : _onSubscribeUserCallbacks) callback(packetId, status);
}
void AsyncMqttClient::_onUnsubAck(uint16_t packetId) {
_freeCurrentParsedPacket();
for (auto callback : _onUnsubscribeUserCallbacks) callback(packetId);
}
void AsyncMqttClient::_onMessage(char* topic, char* payload, uint8_t qos, bool dup, bool retain, size_t len, size_t index, size_t total, uint16_t packetId) {
bool notifyPublish = true;
if (qos == 2) {
for (AsyncMqttClientInternals::PendingPubRel pendingPubRel : _pendingPubRels) {
if (pendingPubRel.packetId == packetId) {
notifyPublish = false;
break;
}
}
}
if (notifyPublish) {
AsyncMqttClientMessageProperties properties;
properties.qos = qos;
properties.dup = dup;
properties.retain = retain;
for (auto callback : _onMessageUserCallbacks) callback(topic, payload, properties, len, index, total);
}
}
void AsyncMqttClient::_onPublish(uint16_t packetId, uint8_t qos) {
AsyncMqttClientInternals::PendingAck pendingAck;
if (qos == 1) {
pendingAck.packetType = AsyncMqttClientInternals::PacketType.PUBACK;
pendingAck.headerFlag = AsyncMqttClientInternals::HeaderFlag.PUBACK_RESERVED;
pendingAck.packetId = packetId;
_toSendAcks.push_back(pendingAck);
} else if (qos == 2) {
pendingAck.packetType = AsyncMqttClientInternals::PacketType.PUBREC;
pendingAck.headerFlag = AsyncMqttClientInternals::HeaderFlag.PUBREC_RESERVED;
pendingAck.packetId = packetId;
_toSendAcks.push_back(pendingAck);
bool pubRelAwaiting = false;
for (AsyncMqttClientInternals::PendingPubRel pendingPubRel : _pendingPubRels) {
if (pendingPubRel.packetId == packetId) {
pubRelAwaiting = true;
break;
}
}
if (!pubRelAwaiting) {
AsyncMqttClientInternals::PendingPubRel pendingPubRel;
pendingPubRel.packetId = packetId;
_pendingPubRels.push_back(pendingPubRel);
}
_sendAcks();
}
_freeCurrentParsedPacket();
}
void AsyncMqttClient::_onPubRel(uint16_t packetId) {
_freeCurrentParsedPacket();
AsyncMqttClientInternals::PendingAck pendingAck;
pendingAck.packetType = AsyncMqttClientInternals::PacketType.PUBCOMP;
pendingAck.headerFlag = AsyncMqttClientInternals::HeaderFlag.PUBCOMP_RESERVED;
pendingAck.packetId = packetId;
_toSendAcks.push_back(pendingAck);
for (size_t i = 0; i < _pendingPubRels.size(); i++) {
if (_pendingPubRels[i].packetId == packetId) {
_pendingPubRels.erase(_pendingPubRels.begin() + i);
_pendingPubRels.shrink_to_fit();
}
}
_sendAcks();
}
void AsyncMqttClient::_onPubAck(uint16_t packetId) {
_freeCurrentParsedPacket();
for (auto callback : _onPublishUserCallbacks) callback(packetId);
}
void AsyncMqttClient::_onPubRec(uint16_t packetId) {
_freeCurrentParsedPacket();
AsyncMqttClientInternals::PendingAck pendingAck;
pendingAck.packetType = AsyncMqttClientInternals::PacketType.PUBREL;
pendingAck.headerFlag = AsyncMqttClientInternals::HeaderFlag.PUBREL_RESERVED;
pendingAck.packetId = packetId;
_toSendAcks.push_back(pendingAck);
_sendAcks();
}
void AsyncMqttClient::_onPubComp(uint16_t packetId) {
_freeCurrentParsedPacket();
for (auto callback : _onPublishUserCallbacks) callback(packetId);
}
bool AsyncMqttClient::_sendPing() {
char fixedHeader[2];
fixedHeader[0] = AsyncMqttClientInternals::PacketType.PINGREQ;
fixedHeader[0] = fixedHeader[0] << 4;
fixedHeader[0] = fixedHeader[0] | AsyncMqttClientInternals::HeaderFlag.PINGREQ_RESERVED;
fixedHeader[1] = 0;
size_t neededSpace = 2;
SEMAPHORE_TAKE(false);
if (_client.space() < neededSpace) { SEMAPHORE_GIVE(); return false; }
_client.add(fixedHeader, 2);
_client.send();
_lastClientActivity = millis();
_lastPingRequestTime = millis();
SEMAPHORE_GIVE();
return true;
}
void AsyncMqttClient::_sendAcks() {
uint8_t neededAckSpace = 2 + 2;
SEMAPHORE_TAKE();
for (size_t i = 0; i < _toSendAcks.size(); i++) {
if (_client.space() < neededAckSpace) break;
AsyncMqttClientInternals::PendingAck pendingAck = _toSendAcks[i];
char fixedHeader[2];
fixedHeader[0] = pendingAck.packetType;
fixedHeader[0] = fixedHeader[0] << 4;
fixedHeader[0] = fixedHeader[0] | pendingAck.headerFlag;
fixedHeader[1] = 2;
char packetIdBytes[2];
packetIdBytes[0] = pendingAck.packetId >> 8;
packetIdBytes[1] = pendingAck.packetId & 0xFF;
_client.add(fixedHeader, 2);
_client.add(packetIdBytes, 2);
_client.send();
_toSendAcks.erase(_toSendAcks.begin() + i);
_toSendAcks.shrink_to_fit();
_lastClientActivity = millis();
}
SEMAPHORE_GIVE();
}
bool AsyncMqttClient::_sendDisconnect() {
if (!_connected) return true;
const uint8_t neededSpace = 2;
SEMAPHORE_TAKE(false);
if (_client.space() < neededSpace) { SEMAPHORE_GIVE(); return false; }
char fixedHeader[2];
fixedHeader[0] = AsyncMqttClientInternals::PacketType.DISCONNECT;
fixedHeader[0] = fixedHeader[0] << 4;
fixedHeader[0] = fixedHeader[0] | AsyncMqttClientInternals::HeaderFlag.DISCONNECT_RESERVED;
fixedHeader[1] = 0;
_client.add(fixedHeader, 2);
_client.send();
_client.close(true);
_disconnectFlagged = false;
SEMAPHORE_GIVE();
return true;
}
uint16_t AsyncMqttClient::_getNextPacketId() {
uint16_t nextPacketId = _nextPacketId;
if (_nextPacketId == 65535) _nextPacketId = 0; // 0 is forbidden
_nextPacketId++;
return nextPacketId;
}
bool AsyncMqttClient::connected() const {
return _connected;
}
void AsyncMqttClient::connect() {
if (_connected) return;
#if ASYNC_TCP_SSL_ENABLED
if (_useIp) {
_client.connect(_ip, _port, _secure);
} else {
_client.connect(_host, _port, _secure);
}
#else
if (_useIp) {
_client.connect(_ip, _port);
} else {
_client.connect(_host, _port);
}
#endif
}
void AsyncMqttClient::disconnect(bool force) {
if (!_connected) return;
if (force) {
_client.close(true);
} else {
_disconnectFlagged = true;
_sendDisconnect();
}
}
uint16_t AsyncMqttClient::subscribe(const char* topic, uint8_t qos) {
if (!_connected) return 0;
char fixedHeader[5];
fixedHeader[0] = AsyncMqttClientInternals::PacketType.SUBSCRIBE;
fixedHeader[0] = fixedHeader[0] << 4;
fixedHeader[0] = fixedHeader[0] | AsyncMqttClientInternals::HeaderFlag.SUBSCRIBE_RESERVED;
uint16_t topicLength = strlen(topic);
char topicLengthBytes[2];
topicLengthBytes[0] = topicLength >> 8;
topicLengthBytes[1] = topicLength & 0xFF;
char qosByte[1];
qosByte[0] = qos;
uint8_t remainingLengthLength = AsyncMqttClientInternals::Helpers::encodeRemainingLength(2 + 2 + topicLength + 1, fixedHeader + 1);
size_t neededSpace = 0;
neededSpace += 1 + remainingLengthLength;
neededSpace += 2;
neededSpace += 2;
neededSpace += topicLength;
neededSpace += 1;
SEMAPHORE_TAKE(0);
if (_client.space() < neededSpace) { SEMAPHORE_GIVE(); return 0; }
uint16_t packetId = _getNextPacketId();
char packetIdBytes[2];
packetIdBytes[0] = packetId >> 8;
packetIdBytes[1] = packetId & 0xFF;
_client.add(fixedHeader, 1 + remainingLengthLength);
_client.add(packetIdBytes, 2);
_client.add(topicLengthBytes, 2);
_client.add(topic, topicLength);
_client.add(qosByte, 1);
_client.send();
_lastClientActivity = millis();
SEMAPHORE_GIVE();
return packetId;
}
uint16_t AsyncMqttClient::unsubscribe(const char* topic) {
if (!_connected) return 0;
char fixedHeader[5];
fixedHeader[0] = AsyncMqttClientInternals::PacketType.UNSUBSCRIBE;
fixedHeader[0] = fixedHeader[0] << 4;
fixedHeader[0] = fixedHeader[0] | AsyncMqttClientInternals::HeaderFlag.UNSUBSCRIBE_RESERVED;
uint16_t topicLength = strlen(topic);
char topicLengthBytes[2];
topicLengthBytes[0] = topicLength >> 8;
topicLengthBytes[1] = topicLength & 0xFF;
uint8_t remainingLengthLength = AsyncMqttClientInternals::Helpers::encodeRemainingLength(2 + 2 + topicLength, fixedHeader + 1);
size_t neededSpace = 0;
neededSpace += 1 + remainingLengthLength;
neededSpace += 2;
neededSpace += 2;
neededSpace += topicLength;
SEMAPHORE_TAKE(0);
if (_client.space() < neededSpace) { SEMAPHORE_GIVE(); return 0; }
uint16_t packetId = _getNextPacketId();
char packetIdBytes[2];
packetIdBytes[0] = packetId >> 8;
packetIdBytes[1] = packetId & 0xFF;
_client.add(fixedHeader, 1 + remainingLengthLength);
_client.add(packetIdBytes, 2);
_client.add(topicLengthBytes, 2);
_client.add(topic, topicLength);
_client.send();
_lastClientActivity = millis();
SEMAPHORE_GIVE();
return packetId;
}
uint16_t AsyncMqttClient::publish(const char* topic, uint8_t qos, bool retain, const char* payload, size_t length, bool dup, uint16_t message_id) {
if (!_connected) return 0;
char fixedHeader[5];
fixedHeader[0] = AsyncMqttClientInternals::PacketType.PUBLISH;
fixedHeader[0] = fixedHeader[0] << 4;
if (dup) fixedHeader[0] |= AsyncMqttClientInternals::HeaderFlag.PUBLISH_DUP;
if (retain) fixedHeader[0] |= AsyncMqttClientInternals::HeaderFlag.PUBLISH_RETAIN;
switch (qos) {
case 0:
fixedHeader[0] |= AsyncMqttClientInternals::HeaderFlag.PUBLISH_QOS0;
break;
case 1:
fixedHeader[0] |= AsyncMqttClientInternals::HeaderFlag.PUBLISH_QOS1;
break;
case 2:
fixedHeader[0] |= AsyncMqttClientInternals::HeaderFlag.PUBLISH_QOS2;
break;
}
uint16_t topicLength = strlen(topic);
char topicLengthBytes[2];
topicLengthBytes[0] = topicLength >> 8;
topicLengthBytes[1] = topicLength & 0xFF;
uint32_t payloadLength = length;
if (payload != nullptr && payloadLength == 0) payloadLength = strlen(payload);
uint32_t remainingLength = 2 + topicLength + payloadLength;
if (qos != 0) remainingLength += 2;
uint8_t remainingLengthLength = AsyncMqttClientInternals::Helpers::encodeRemainingLength(remainingLength, fixedHeader + 1);
size_t neededSpace = 0;
neededSpace += 1 + remainingLengthLength;
neededSpace += 2;
neededSpace += topicLength;
if (qos != 0) neededSpace += 2;
if (payload != nullptr) neededSpace += payloadLength;
SEMAPHORE_TAKE(0);
if (_client.space() < neededSpace) { SEMAPHORE_GIVE(); return 0; }
uint16_t packetId = 0;
char packetIdBytes[2];
if (qos != 0) {
if (dup && message_id > 0) {
packetId = message_id;
} else {
packetId = _getNextPacketId();
}
packetIdBytes[0] = packetId >> 8;
packetIdBytes[1] = packetId & 0xFF;
}
_client.add(fixedHeader, 1 + remainingLengthLength);
_client.add(topicLengthBytes, 2);
_client.add(topic, topicLength);
if (qos != 0) _client.add(packetIdBytes, 2);
if (payload != nullptr) _client.add(payload, payloadLength);
_client.send();
_lastClientActivity = millis();
SEMAPHORE_GIVE();
if (qos != 0) {
return packetId;
} else {
return 1;
}
}

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#ifndef SRC_ASYNCMQTTCLIENT_H_
#define SRC_ASYNCMQTTCLIENT_H_
#include "AsyncMqttClient.hpp"
#endif // SRC_ASYNCMQTTCLIENT_H_

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#pragma once
#include <functional>
#include <vector>
#include "Arduino.h"
#ifdef ESP32
#include <AsyncTCP.h>
#include <freertos/semphr.h>
#elif defined(ESP8266)
#include <ESPAsyncTCP.h>
#else
#error Platform not supported
#endif
#if ASYNC_TCP_SSL_ENABLED
#include <tcp_axtls.h>
#define SHA1_SIZE 20
#endif
#include "AsyncMqttClient/Flags.hpp"
#include "AsyncMqttClient/ParsingInformation.hpp"
#include "AsyncMqttClient/MessageProperties.hpp"
#include "AsyncMqttClient/Helpers.hpp"
#include "AsyncMqttClient/Callbacks.hpp"
#include "AsyncMqttClient/DisconnectReasons.hpp"
#include "AsyncMqttClient/Storage.hpp"
#include "AsyncMqttClient/Packets/Packet.hpp"
#include "AsyncMqttClient/Packets/ConnAckPacket.hpp"
#include "AsyncMqttClient/Packets/PingRespPacket.hpp"
#include "AsyncMqttClient/Packets/SubAckPacket.hpp"
#include "AsyncMqttClient/Packets/UnsubAckPacket.hpp"
#include "AsyncMqttClient/Packets/PublishPacket.hpp"
#include "AsyncMqttClient/Packets/PubRelPacket.hpp"
#include "AsyncMqttClient/Packets/PubAckPacket.hpp"
#include "AsyncMqttClient/Packets/PubRecPacket.hpp"
#include "AsyncMqttClient/Packets/PubCompPacket.hpp"
#if ESP32
#define SEMAPHORE_TAKE(X) if (xSemaphoreTake(_xSemaphore, 1000 / portTICK_PERIOD_MS) != pdTRUE) { return X; } // Waits max 1000ms
#define SEMAPHORE_GIVE() xSemaphoreGive(_xSemaphore);
#elif defined(ESP8266)
#define SEMAPHORE_TAKE(X) void()
#define SEMAPHORE_GIVE() void()
#endif
class AsyncMqttClient {
public:
AsyncMqttClient();
~AsyncMqttClient();
AsyncMqttClient& setKeepAlive(uint16_t keepAlive);
AsyncMqttClient& setClientId(const char* clientId);
AsyncMqttClient& setCleanSession(bool cleanSession);
AsyncMqttClient& setMaxTopicLength(uint16_t maxTopicLength);
AsyncMqttClient& setCredentials(const char* username, const char* password = nullptr);
AsyncMqttClient& setWill(const char* topic, uint8_t qos, bool retain, const char* payload = nullptr, size_t length = 0);
AsyncMqttClient& setServer(IPAddress ip, uint16_t port);
AsyncMqttClient& setServer(const char* host, uint16_t port);
#if ASYNC_TCP_SSL_ENABLED
AsyncMqttClient& setSecure(bool secure);
AsyncMqttClient& addServerFingerprint(const uint8_t* fingerprint);
#endif
AsyncMqttClient& onConnect(AsyncMqttClientInternals::OnConnectUserCallback callback);
AsyncMqttClient& onDisconnect(AsyncMqttClientInternals::OnDisconnectUserCallback callback);
AsyncMqttClient& onSubscribe(AsyncMqttClientInternals::OnSubscribeUserCallback callback);
AsyncMqttClient& onUnsubscribe(AsyncMqttClientInternals::OnUnsubscribeUserCallback callback);
AsyncMqttClient& onMessage(AsyncMqttClientInternals::OnMessageUserCallback callback);
AsyncMqttClient& onPublish(AsyncMqttClientInternals::OnPublishUserCallback callback);
bool connected() const;
void connect();
void disconnect(bool force = false);
uint16_t subscribe(const char* topic, uint8_t qos);
uint16_t unsubscribe(const char* topic);
uint16_t publish(const char* topic, uint8_t qos, bool retain, const char* payload = nullptr, size_t length = 0, bool dup = false, uint16_t message_id = 0);
private:
AsyncClient _client;
bool _connected;
bool _connectPacketNotEnoughSpace;
bool _disconnectFlagged;
bool _tlsBadFingerprint;
uint32_t _lastClientActivity;
uint32_t _lastServerActivity;
uint32_t _lastPingRequestTime;
char _generatedClientId[13 + 1]; // esp8266abc123
IPAddress _ip;
const char* _host;
bool _useIp;
#if ASYNC_TCP_SSL_ENABLED
bool _secure;
#endif
uint16_t _port;
uint16_t _keepAlive;
bool _cleanSession;
const char* _clientId;
const char* _username;
const char* _password;
const char* _willTopic;
const char* _willPayload;
uint16_t _willPayloadLength;
uint8_t _willQos;
bool _willRetain;
#if ASYNC_TCP_SSL_ENABLED
std::vector<std::array<uint8_t, SHA1_SIZE>> _secureServerFingerprints;
#endif
std::vector<AsyncMqttClientInternals::OnConnectUserCallback> _onConnectUserCallbacks;
std::vector<AsyncMqttClientInternals::OnDisconnectUserCallback> _onDisconnectUserCallbacks;
std::vector<AsyncMqttClientInternals::OnSubscribeUserCallback> _onSubscribeUserCallbacks;
std::vector<AsyncMqttClientInternals::OnUnsubscribeUserCallback> _onUnsubscribeUserCallbacks;
std::vector<AsyncMqttClientInternals::OnMessageUserCallback> _onMessageUserCallbacks;
std::vector<AsyncMqttClientInternals::OnPublishUserCallback> _onPublishUserCallbacks;
AsyncMqttClientInternals::ParsingInformation _parsingInformation;
AsyncMqttClientInternals::Packet* _currentParsedPacket;
uint8_t _remainingLengthBufferPosition;
char _remainingLengthBuffer[4];
uint16_t _nextPacketId;
std::vector<AsyncMqttClientInternals::PendingPubRel> _pendingPubRels;
std::vector<AsyncMqttClientInternals::PendingAck> _toSendAcks;
#ifdef ESP32
SemaphoreHandle_t _xSemaphore = nullptr;
#endif
void _clear();
void _freeCurrentParsedPacket();
// TCP
void _onConnect(AsyncClient* client);
void _onDisconnect(AsyncClient* client);
static void _onError(AsyncClient* client, int8_t error);
void _onTimeout(AsyncClient* client, uint32_t time);
static void _onAck(AsyncClient* client, size_t len, uint32_t time);
void _onData(AsyncClient* client, char* data, size_t len);
void _onPoll(AsyncClient* client);
// MQTT
void _onPingResp();
void _onConnAck(bool sessionPresent, uint8_t connectReturnCode);
void _onSubAck(uint16_t packetId, char status);
void _onUnsubAck(uint16_t packetId);
void _onMessage(char* topic, char* payload, uint8_t qos, bool dup, bool retain, size_t len, size_t index, size_t total, uint16_t packetId);
void _onPublish(uint16_t packetId, uint8_t qos);
void _onPubRel(uint16_t packetId);
void _onPubAck(uint16_t packetId);
void _onPubRec(uint16_t packetId);
void _onPubComp(uint16_t packetId);
bool _sendPing();
void _sendAcks();
bool _sendDisconnect();
uint16_t _getNextPacketId();
};

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#pragma once
#include <functional>
#include "DisconnectReasons.hpp"
#include "MessageProperties.hpp"
namespace AsyncMqttClientInternals {
// user callbacks
typedef std::function<void(bool sessionPresent)> OnConnectUserCallback;
typedef std::function<void(AsyncMqttClientDisconnectReason reason)> OnDisconnectUserCallback;
typedef std::function<void(uint16_t packetId, uint8_t qos)> OnSubscribeUserCallback;
typedef std::function<void(uint16_t packetId)> OnUnsubscribeUserCallback;
typedef std::function<void(char* topic, char* payload, AsyncMqttClientMessageProperties properties, size_t len, size_t index, size_t total)> OnMessageUserCallback;
typedef std::function<void(uint16_t packetId)> OnPublishUserCallback;
// internal callbacks
typedef std::function<void(bool sessionPresent, uint8_t connectReturnCode)> OnConnAckInternalCallback;
typedef std::function<void()> OnPingRespInternalCallback;
typedef std::function<void(uint16_t packetId, char status)> OnSubAckInternalCallback;
typedef std::function<void(uint16_t packetId)> OnUnsubAckInternalCallback;
typedef std::function<void(char* topic, char* payload, uint8_t qos, bool dup, bool retain, size_t len, size_t index, size_t total, uint16_t packetId)> OnMessageInternalCallback;
typedef std::function<void(uint16_t packetId, uint8_t qos)> OnPublishInternalCallback;
typedef std::function<void(uint16_t packetId)> OnPubRelInternalCallback;
typedef std::function<void(uint16_t packetId)> OnPubAckInternalCallback;
typedef std::function<void(uint16_t packetId)> OnPubRecInternalCallback;
typedef std::function<void(uint16_t packetId)> OnPubCompInternalCallback;
} // namespace AsyncMqttClientInternals

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#pragma once
enum class AsyncMqttClientDisconnectReason : int8_t {
TCP_DISCONNECTED = 0,
MQTT_UNACCEPTABLE_PROTOCOL_VERSION = 1,
MQTT_IDENTIFIER_REJECTED = 2,
MQTT_SERVER_UNAVAILABLE = 3,
MQTT_MALFORMED_CREDENTIALS = 4,
MQTT_NOT_AUTHORIZED = 5,
ESP8266_NOT_ENOUGH_SPACE = 6,
TLS_BAD_FINGERPRINT = 7
};

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#pragma once
namespace AsyncMqttClientInternals {
constexpr struct {
const uint8_t RESERVED = 0;
const uint8_t CONNECT = 1;
const uint8_t CONNACK = 2;
const uint8_t PUBLISH = 3;
const uint8_t PUBACK = 4;
const uint8_t PUBREC = 5;
const uint8_t PUBREL = 6;
const uint8_t PUBCOMP = 7;
const uint8_t SUBSCRIBE = 8;
const uint8_t SUBACK = 9;
const uint8_t UNSUBSCRIBE = 10;
const uint8_t UNSUBACK = 11;
const uint8_t PINGREQ = 12;
const uint8_t PINGRESP = 13;
const uint8_t DISCONNECT = 14;
const uint8_t RESERVED2 = 1;
} PacketType;
constexpr struct {
const uint8_t CONNECT_RESERVED = 0x00;
const uint8_t CONNACK_RESERVED = 0x00;
const uint8_t PUBLISH_DUP = 0x08;
const uint8_t PUBLISH_QOS0 = 0x00;
const uint8_t PUBLISH_QOS1 = 0x02;
const uint8_t PUBLISH_QOS2 = 0x04;
const uint8_t PUBLISH_QOSRESERVED = 0x06;
const uint8_t PUBLISH_RETAIN = 0x01;
const uint8_t PUBACK_RESERVED = 0x00;
const uint8_t PUBREC_RESERVED = 0x00;
const uint8_t PUBREL_RESERVED = 0x02;
const uint8_t PUBCOMP_RESERVED = 0x00;
const uint8_t SUBSCRIBE_RESERVED = 0x02;
const uint8_t SUBACK_RESERVED = 0x00;
const uint8_t UNSUBSCRIBE_RESERVED = 0x02;
const uint8_t UNSUBACK_RESERVED = 0x00;
const uint8_t PINGREQ_RESERVED = 0x00;
const uint8_t PINGRESP_RESERVED = 0x00;
const uint8_t DISCONNECT_RESERVED = 0x00;
const uint8_t RESERVED2_RESERVED = 0x00;
} HeaderFlag;
constexpr struct {
const uint8_t USERNAME = 0x80;
const uint8_t PASSWORD = 0x40;
const uint8_t WILL_RETAIN = 0x20;
const uint8_t WILL_QOS0 = 0x00;
const uint8_t WILL_QOS1 = 0x08;
const uint8_t WILL_QOS2 = 0x10;
const uint8_t WILL = 0x04;
const uint8_t CLEAN_SESSION = 0x02;
const uint8_t RESERVED = 0x00;
} ConnectFlag;
} // namespace AsyncMqttClientInternals

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#pragma once
namespace AsyncMqttClientInternals {
class Helpers {
public:
static uint32_t decodeRemainingLength(char* bytes) {
uint32_t multiplier = 1;
uint32_t value = 0;
uint8_t currentByte = 0;
uint8_t encodedByte;
do {
encodedByte = bytes[currentByte++];
value += (encodedByte & 127) * multiplier;
multiplier *= 128;
} while ((encodedByte & 128) != 0);
return value;
}
static uint8_t encodeRemainingLength(uint32_t remainingLength, char* destination) {
uint8_t currentByte = 0;
uint8_t bytesNeeded = 0;
do {
uint8_t encodedByte = remainingLength % 128;
remainingLength /= 128;
if (remainingLength > 0) {
encodedByte = encodedByte | 128;
}
destination[currentByte++] = encodedByte;
bytesNeeded++;
} while (remainingLength > 0);
return bytesNeeded;
}
};
} // namespace AsyncMqttClientInternals

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#pragma once
struct AsyncMqttClientMessageProperties {
uint8_t qos;
bool dup;
bool retain;
};

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#include "ConnAckPacket.hpp"
using AsyncMqttClientInternals::ConnAckPacket;
ConnAckPacket::ConnAckPacket(ParsingInformation* parsingInformation, OnConnAckInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _sessionPresent(false)
, _connectReturnCode(0) {
}
ConnAckPacket::~ConnAckPacket() {
}
void ConnAckPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_sessionPresent = (currentByte << 7) >> 7;
} else {
_connectReturnCode = currentByte;
_parsingInformation->bufferState = BufferState::NONE;
_callback(_sessionPresent, _connectReturnCode);
}
}
void ConnAckPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class ConnAckPacket : public Packet {
public:
explicit ConnAckPacket(ParsingInformation* parsingInformation, OnConnAckInternalCallback callback);
~ConnAckPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnConnAckInternalCallback _callback;
uint8_t _bytePosition;
bool _sessionPresent;
uint8_t _connectReturnCode;
};
} // namespace AsyncMqttClientInternals

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#pragma once
namespace AsyncMqttClientInternals {
class Packet {
public:
virtual ~Packet() {}
virtual void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) = 0;
virtual void parsePayload(char* data, size_t len, size_t* currentBytePosition) = 0;
};
} // namespace AsyncMqttClientInternals

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#include "PingRespPacket.hpp"
using AsyncMqttClientInternals::PingRespPacket;
PingRespPacket::PingRespPacket(ParsingInformation* parsingInformation, OnPingRespInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback) {
}
PingRespPacket::~PingRespPacket() {
}
void PingRespPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}
void PingRespPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class PingRespPacket : public Packet {
public:
explicit PingRespPacket(ParsingInformation* parsingInformation, OnPingRespInternalCallback callback);
~PingRespPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnPingRespInternalCallback _callback;
};
} // namespace AsyncMqttClientInternals

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#include "PubAckPacket.hpp"
using AsyncMqttClientInternals::PubAckPacket;
PubAckPacket::PubAckPacket(ParsingInformation* parsingInformation, OnPubAckInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _packetIdMsb(0)
, _packetId(0) {
}
PubAckPacket::~PubAckPacket() {
}
void PubAckPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_parsingInformation->bufferState = BufferState::NONE;
_callback(_packetId);
}
}
void PubAckPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class PubAckPacket : public Packet {
public:
explicit PubAckPacket(ParsingInformation* parsingInformation, OnPubAckInternalCallback callback);
~PubAckPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnPubAckInternalCallback _callback;
uint8_t _bytePosition;
char _packetIdMsb;
uint16_t _packetId;
};
} // namespace AsyncMqttClientInternals

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#include "PubCompPacket.hpp"
using AsyncMqttClientInternals::PubCompPacket;
PubCompPacket::PubCompPacket(ParsingInformation* parsingInformation, OnPubCompInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _packetIdMsb(0)
, _packetId(0) {
}
PubCompPacket::~PubCompPacket() {
}
void PubCompPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_parsingInformation->bufferState = BufferState::NONE;
_callback(_packetId);
}
}
void PubCompPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class PubCompPacket : public Packet {
public:
explicit PubCompPacket(ParsingInformation* parsingInformation, OnPubCompInternalCallback callback);
~PubCompPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnPubCompInternalCallback _callback;
uint8_t _bytePosition;
char _packetIdMsb;
uint16_t _packetId;
};
} // namespace AsyncMqttClientInternals

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@ -1,30 +0,0 @@
#include "PubRecPacket.hpp"
using AsyncMqttClientInternals::PubRecPacket;
PubRecPacket::PubRecPacket(ParsingInformation* parsingInformation, OnPubRecInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _packetIdMsb(0)
, _packetId(0) {
}
PubRecPacket::~PubRecPacket() {
}
void PubRecPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_parsingInformation->bufferState = BufferState::NONE;
_callback(_packetId);
}
}
void PubRecPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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@ -1,25 +0,0 @@
#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class PubRecPacket : public Packet {
public:
explicit PubRecPacket(ParsingInformation* parsingInformation, OnPubRecInternalCallback callback);
~PubRecPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnPubRecInternalCallback _callback;
uint8_t _bytePosition;
char _packetIdMsb;
uint16_t _packetId;
};
} // namespace AsyncMqttClientInternals

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@ -1,30 +0,0 @@
#include "PubRelPacket.hpp"
using AsyncMqttClientInternals::PubRelPacket;
PubRelPacket::PubRelPacket(ParsingInformation* parsingInformation, OnPubRelInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _packetIdMsb(0)
, _packetId(0) {
}
PubRelPacket::~PubRelPacket() {
}
void PubRelPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_parsingInformation->bufferState = BufferState::NONE;
_callback(_packetId);
}
}
void PubRelPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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@ -1,25 +0,0 @@
#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class PubRelPacket : public Packet {
public:
explicit PubRelPacket(ParsingInformation* parsingInformation, OnPubRelInternalCallback callback);
~PubRelPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnPubRelInternalCallback _callback;
uint8_t _bytePosition;
char _packetIdMsb;
uint16_t _packetId;
};
} // namespace AsyncMqttClientInternals

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@ -1,91 +0,0 @@
#include "PublishPacket.hpp"
using AsyncMqttClientInternals::PublishPacket;
PublishPacket::PublishPacket(ParsingInformation* parsingInformation, OnMessageInternalCallback dataCallback, OnPublishInternalCallback completeCallback)
: _parsingInformation(parsingInformation)
, _dataCallback(dataCallback)
, _completeCallback(completeCallback)
, _dup(false)
, _qos(0)
, _retain(0)
, _bytePosition(0)
, _topicLengthMsb(0)
, _topicLength(0)
, _ignore(false)
, _packetIdMsb(0)
, _packetId(0)
, _payloadLength(0)
, _payloadBytesRead(0) {
_dup = _parsingInformation->packetFlags & HeaderFlag.PUBLISH_DUP;
_retain = _parsingInformation->packetFlags & HeaderFlag.PUBLISH_RETAIN;
char qosMasked = _parsingInformation->packetFlags & 0x06;
switch (qosMasked) {
case HeaderFlag.PUBLISH_QOS0:
_qos = 0;
break;
case HeaderFlag.PUBLISH_QOS1:
_qos = 1;
break;
case HeaderFlag.PUBLISH_QOS2:
_qos = 2;
break;
}
}
PublishPacket::~PublishPacket() {
}
void PublishPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition == 0) {
_topicLengthMsb = currentByte;
} else if (_bytePosition == 1) {
_topicLength = currentByte | _topicLengthMsb << 8;
if (_topicLength > _parsingInformation->maxTopicLength) {
_ignore = true;
} else {
_parsingInformation->topicBuffer[_topicLength] = '\0';
}
} else if (_bytePosition >= 2 && _bytePosition < 2 + _topicLength) {
// Starting from here, _ignore might be true
if (!_ignore) _parsingInformation->topicBuffer[_bytePosition - 2] = currentByte;
if (_bytePosition == 2 + _topicLength - 1 && _qos == 0) {
_preparePayloadHandling(_parsingInformation->remainingLength - (_bytePosition + 1));
return;
}
} else if (_bytePosition == 2 + _topicLength) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_preparePayloadHandling(_parsingInformation->remainingLength - (_bytePosition + 1));
}
_bytePosition++;
}
void PublishPacket::_preparePayloadHandling(uint32_t payloadLength) {
_payloadLength = payloadLength;
if (payloadLength == 0) {
_parsingInformation->bufferState = BufferState::NONE;
if (!_ignore) {
_dataCallback(_parsingInformation->topicBuffer, nullptr, _qos, _dup, _retain, 0, 0, 0, _packetId);
_completeCallback(_packetId, _qos);
}
} else {
_parsingInformation->bufferState = BufferState::PAYLOAD;
}
}
void PublishPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
size_t remainToRead = len - (*currentBytePosition);
if (_payloadBytesRead + remainToRead > _payloadLength) remainToRead = _payloadLength - _payloadBytesRead;
if (!_ignore) _dataCallback(_parsingInformation->topicBuffer, data + (*currentBytePosition), _qos, _dup, _retain, remainToRead, _payloadBytesRead, _payloadLength, _packetId);
_payloadBytesRead += remainToRead;
(*currentBytePosition) += remainToRead;
if (_payloadBytesRead == _payloadLength) {
_parsingInformation->bufferState = BufferState::NONE;
if (!_ignore) _completeCallback(_packetId, _qos);
}
}

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@ -1,38 +0,0 @@
#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../Flags.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class PublishPacket : public Packet {
public:
explicit PublishPacket(ParsingInformation* parsingInformation, OnMessageInternalCallback dataCallback, OnPublishInternalCallback completeCallback);
~PublishPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnMessageInternalCallback _dataCallback;
OnPublishInternalCallback _completeCallback;
void _preparePayloadHandling(uint32_t payloadLength);
bool _dup;
uint8_t _qos;
bool _retain;
uint8_t _bytePosition;
char _topicLengthMsb;
uint16_t _topicLength;
bool _ignore;
char _packetIdMsb;
uint16_t _packetId;
uint32_t _payloadLength;
uint32_t _payloadBytesRead;
};
} // namespace AsyncMqttClientInternals

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@ -1,46 +0,0 @@
#include "SubAckPacket.hpp"
using AsyncMqttClientInternals::SubAckPacket;
SubAckPacket::SubAckPacket(ParsingInformation* parsingInformation, OnSubAckInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _packetIdMsb(0)
, _packetId(0) {
}
SubAckPacket::~SubAckPacket() {
}
void SubAckPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_parsingInformation->bufferState = BufferState::PAYLOAD;
}
}
void SubAckPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
char status = data[(*currentBytePosition)++];
/* switch (status) {
case 0:
Serial.println("Success QoS 0");
break;
case 1:
Serial.println("Success QoS 1");
break;
case 2:
Serial.println("Success QoS 2");
break;
case 0x80:
Serial.println("Failure");
break;
} */
_parsingInformation->bufferState = BufferState::NONE;
_callback(_packetId, status);
}

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#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class SubAckPacket : public Packet {
public:
explicit SubAckPacket(ParsingInformation* parsingInformation, OnSubAckInternalCallback callback);
~SubAckPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnSubAckInternalCallback _callback;
uint8_t _bytePosition;
char _packetIdMsb;
uint16_t _packetId;
};
} // namespace AsyncMqttClientInternals

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@ -1,30 +0,0 @@
#include "UnsubAckPacket.hpp"
using AsyncMqttClientInternals::UnsubAckPacket;
UnsubAckPacket::UnsubAckPacket(ParsingInformation* parsingInformation, OnUnsubAckInternalCallback callback)
: _parsingInformation(parsingInformation)
, _callback(callback)
, _bytePosition(0)
, _packetIdMsb(0)
, _packetId(0) {
}
UnsubAckPacket::~UnsubAckPacket() {
}
void UnsubAckPacket::parseVariableHeader(char* data, size_t len, size_t* currentBytePosition) {
char currentByte = data[(*currentBytePosition)++];
if (_bytePosition++ == 0) {
_packetIdMsb = currentByte;
} else {
_packetId = currentByte | _packetIdMsb << 8;
_parsingInformation->bufferState = BufferState::NONE;
_callback(_packetId);
}
}
void UnsubAckPacket::parsePayload(char* data, size_t len, size_t* currentBytePosition) {
(void)data;
(void)currentBytePosition;
}

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@ -1,25 +0,0 @@
#pragma once
#include "Arduino.h"
#include "Packet.hpp"
#include "../ParsingInformation.hpp"
#include "../Callbacks.hpp"
namespace AsyncMqttClientInternals {
class UnsubAckPacket : public Packet {
public:
explicit UnsubAckPacket(ParsingInformation* parsingInformation, OnUnsubAckInternalCallback callback);
~UnsubAckPacket();
void parseVariableHeader(char* data, size_t len, size_t* currentBytePosition);
void parsePayload(char* data, size_t len, size_t* currentBytePosition);
private:
ParsingInformation* _parsingInformation;
OnUnsubAckInternalCallback _callback;
uint8_t _bytePosition;
char _packetIdMsb;
uint16_t _packetId;
};
} // namespace AsyncMqttClientInternals

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@ -1,21 +0,0 @@
#pragma once
namespace AsyncMqttClientInternals {
enum class BufferState : uint8_t {
NONE = 0,
REMAINING_LENGTH = 2,
VARIABLE_HEADER = 3,
PAYLOAD = 4
};
struct ParsingInformation {
BufferState bufferState;
uint16_t maxTopicLength;
char* topicBuffer;
uint8_t packetType;
uint16_t packetFlags;
uint32_t remainingLength;
};
} // namespace AsyncMqttClientInternals

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@ -1,13 +0,0 @@
#pragma once
namespace AsyncMqttClientInternals {
struct PendingPubRel {
uint16_t packetId;
};
struct PendingAck {
uint8_t packetType;
uint8_t headerFlag;
uint16_t packetId;
};
} // namespace AsyncMqttClientInternals

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@ -1,21 +0,0 @@
The MIT License (MIT)
Copyright (c) 2015 Marvin Roger
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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@ -1,18 +0,0 @@
Async MQTT client for ESP8266 and ESP32 (Github: https://github.com/marvinroger/async-mqtt-client)
=============================
[![Build Status](https://img.shields.io/travis/marvinroger/async-mqtt-client/master.svg?style=flat-square)](https://travis-ci.org/marvinroger/async-mqtt-client)
An Arduino for ESP8266 and ESP32 asynchronous [MQTT](http://mqtt.org/) client implementation, built on [me-no-dev/ESPAsyncTCP (ESP8266)](https://github.com/me-no-dev/ESPAsyncTCP) | [me-no-dev/AsyncTCP (ESP32)](https://github.com/me-no-dev/AsyncTCP) .
## Features
* Compliant with the 3.1.1 version of the protocol
* Fully asynchronous
* Subscribe at QoS 0, 1 and 2
* Publish at QoS 0, 1 and 2
* SSL/TLS support
* Available in the [PlatformIO registry](http://platformio.org/lib/show/346/AsyncMqttClient)
## Requirements, installation and usage
The project is documented in the [/docs folder](docs).

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@ -130,7 +130,7 @@
#endif
#include "src/dependencies/e131/ESPAsyncE131.h"
#include "src/dependencies/async-mqtt-client/AsyncMqttClient.h"
#include <AsyncMqttClient.h>
#define ARDUINOJSON_DECODE_UNICODE 0
#include "src/dependencies/json/AsyncJson-v6.h"