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TLS support for esp32 using AsyncTCP/mbed-tls of fremouw #202

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TLS support for esp32 using AsyncTCP/mbed-tls of fremouw #202

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fc4a14f
add component.mk to simplify esp32 usage
fAuernigg Sep 30, 2020
0c35ea6
add esp32 tls support using AsyncTCP mbedtls branch
fAuernigg Sep 30, 2020
dd00c78
fix compiler warning parsingInformation not initialized
fAuernigg Sep 30, 2020
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5 changes: 5 additions & 0 deletions component.mk
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@

COMPONENT_ADD_INCLUDEDIRS := src/
COMPONENT_SRCDIRS := src/
COMPONENT_SRCDIRS += src/AsyncMqttClient
COMPONENT_SRCDIRS += src/AsyncMqttClient/Packets
17 changes: 16 additions & 1 deletion src/AsyncMqttClient.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,13 @@ AsyncMqttClient::AsyncMqttClient()
, _willPayloadLength(0)
, _willQos(0)
, _willRetain(false)
, _parsingInformation { .bufferState = AsyncMqttClientInternals::BufferState::NONE }
, _parsingInformation { .bufferState = AsyncMqttClientInternals::BufferState::NONE,
.maxTopicLength = 0,
.topicBuffer = NULL,
.packetType = 0,
.packetFlags = 0,
.remainingLength = 0
}
, _currentParsedPacket(nullptr)
, _remainingLengthBufferPosition(0)
, _nextPacketId(1) {
Expand Down Expand Up @@ -118,7 +124,14 @@ AsyncMqttClient& AsyncMqttClient::addServerFingerprint(const uint8_t* fingerprin
_secureServerFingerprints.push_back(newFingerprint);
return *this;
}
#ifdef ESP32
AsyncMqttClient& AsyncMqttClient::setRootCa(const char* rootca, const size_t len) {
_client.setRootCa(rootca, len);
return *this;
}
#endif
#endif


AsyncMqttClient& AsyncMqttClient::onConnect(AsyncMqttClientInternals::OnConnectUserCallback callback) {
_onConnectUserCallbacks.push_back(callback);
Expand Down Expand Up @@ -178,6 +191,7 @@ void AsyncMqttClient::_onConnect(AsyncClient* client) {
(void)client;

#if ASYNC_TCP_SSL_ENABLED
#ifndef ESP32
if (_secure && _secureServerFingerprints.size() > 0) {
SSL* clientSsl = _client.getSSL();

Expand All @@ -195,6 +209,7 @@ void AsyncMqttClient::_onConnect(AsyncClient* client) {
return;
}
}
#endif
#endif

char fixedHeader[5];
Expand Down
7 changes: 7 additions & 0 deletions src/AsyncMqttClient.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,11 @@
#endif

#if ASYNC_TCP_SSL_ENABLED
#ifdef ESP32
#include <tcp_mbedtls.h>
#else
#include <tcp_axtls.h>
#endif
#define SHA1_SIZE 20
#endif

Expand Down Expand Up @@ -62,6 +66,9 @@ class AsyncMqttClient {
#if ASYNC_TCP_SSL_ENABLED
AsyncMqttClient& setSecure(bool secure);
AsyncMqttClient& addServerFingerprint(const uint8_t* fingerprint);
#ifdef ESP32
AsyncMqttClient& setRootCa(const char* rootca, const size_t len);
#endif
#endif

AsyncMqttClient& onConnect(AsyncMqttClientInternals::OnConnectUserCallback callback);
Expand Down