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Merge branch 'feature/mqtt_component' into 'master' 

added tuan's mqtt library into idf

See merge request idf/esp-idf!2851
pull/2410/head
Angus Gratton 2018-09-13 09:06:09 +08:00
rodzic 514487e9a1 23345d2021
commit 7848cfdde7
60 zmienionych plików z 1830 dodań i 39 usunięć
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4
.gitmodules vendored
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@ -53,3 +53,7 @@
[submodule "components/lwip/lwip"]
path = components/lwip/lwip
url = https://github.com/espressif/esp-lwip.git
[submodule "components/mqtt/esp-mqtt"]
path = components/mqtt/esp-mqtt
url = https://github.com/espressif/esp-mqtt.git

7
components/esp_http_client/CMakeLists.txt
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@ -1,14 +1,11 @@
set(COMPONENT_SRCS "esp_http_client.c"
"lib/http_auth.c"
"lib/http_header.c"
"lib/http_utils.c"
"lib/transport.c"
"lib/transport_ssl.c"
"lib/transport_tcp.c")
"lib/http_utils.c")
set(COMPONENT_ADD_INCLUDEDIRS "include")
set(COMPONENT_PRIV_INCLUDEDIRS "lib/include")
set(COMPONENT_REQUIRES "nghttp")
set(COMPONENT_PRIV_REQUIRES "mbedtls" "lwip" "esp-tls")
set(COMPONENT_PRIV_REQUIRES "mbedtls" "lwip" "esp-tls" "tcp_transport")
register_component()

6
components/esp_http_client/lib/http_utils.c
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@ -123,9 +123,3 @@ int http_utils_str_starts_with(const char *str, const char *start)
}
return 0;
}
void http_utils_ms_to_timeval(int timeout_ms, struct timeval *tv)
{
tv->tv_sec = timeout_ms / 1000;
tv->tv_usec = (timeout_ms - (tv->tv_sec * 1000)) * 1000;
}

13
components/esp_http_client/lib/include/http_utils.h
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@ -16,6 +16,7 @@
#ifndef _HTTP_UTILS_H_
#define _HTTP_UTILS_H_
#include <sys/time.h>
#include "transport_utils.h"
/**
* @brief Assign new_str to *str pointer, and realloc *str if it not NULL
*
@ -78,18 +79,8 @@ char *http_utils_join_string(const char *first_str, int len_first, const char *s
*/
int http_utils_str_starts_with(const char *str, const char *start);
/**
* @brief Convert milliseconds to timeval struct
*
* @param[in] timeout_ms The timeout milliseconds
* @param[out] tv Timeval struct
*/
void http_utils_ms_to_timeval(int timeout_ms, struct timeval *tv);
#define HTTP_MEM_CHECK(TAG, a, action) if (!(a)) { \
ESP_LOGE(TAG,"%s:%d (%s): %s", __FILE__, __LINE__, __FUNCTION__, "Memory exhausted"); \
action; \
}
#define HTTP_MEM_CHECK(TAG, a, action) TRANSPORT_MEM_CHECK(TAG, a, action)
#endif

7
components/mqtt/CMakeLists.txt 100644
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@ -0,0 +1,7 @@
set(COMPONENT_ADD_INCLUDEDIRS esp-mqtt/include)
set(COMPONENT_PRIV_INCLUDEDIRS "esp-mqtt/lib/include")
set(COMPONENT_SRCDIRS esp-mqtt esp-mqtt/lib)
set(COMPONENT_REQUIRES lwip nghttp mbedtls tcp_transport)
register_component()

1
components/mqtt/Kconfig 100644
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@ -0,0 +1 @@
source "$IDF_PATH/components/mqtt/esp-mqtt/Kconfig.included"

4
components/mqtt/component.mk 100644
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@ -0,0 +1,4 @@
COMPONENT_SUBMODULES += esp-mqtt
COMPONENT_ADD_INCLUDEDIRS := esp-mqtt/include
COMPONENT_SRCDIRS := esp-mqtt esp-mqtt/lib
COMPONENT_PRIV_INCLUDEDIRS := esp-mqtt/lib/include

1
components/mqtt/esp-mqtt 160000

@ -0,0 +1 @@
Subproject commit abaab2abccc019aa57f5b9afaf57f0d49f7b1b6f

6
components/tcp_transport/CMakeLists.txt 100644
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@ -0,0 +1,6 @@
set(COMPONENT_SRCDIRS ".")
set(COMPONENT_ADD_INCLUDEDIRS "include")
set(COMPONENT_REQUIRES lwip esp-tls)
register_component()

4
components/tcp_transport/component.mk 100644
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@ -0,0 +1,4 @@
#
# Component Makefile
#
# (Uses default behaviour of compiling all source files in directory, adding 'include' to include path.)

16
components/esp_http_client/lib/include/transport.h → components/tcp_transport/include/transport.h
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@ -30,6 +30,7 @@ typedef int (*io_func)(transport_handle_t t, const char *buffer, int len, int ti
typedef int (*io_read_func)(transport_handle_t t, char *buffer, int len, int timeout_ms);
typedef int (*trans_func)(transport_handle_t t);
typedef int (*poll_func)(transport_handle_t t, int timeout_ms);
typedef transport_handle_t (*payload_transfer_func)(transport_handle_t);
/**
* @brief Create transport list
@ -211,6 +212,17 @@ int transport_close(transport_handle_t t);
*/
void *transport_get_context_data(transport_handle_t t);
/**
* @brief Get transport handle of underlying protocol
* which can access this protocol payload directly
* (used for receiving longer msg multiple times)
*
* @param[in] t The transport handle
*
* @return Payload transport handle
*/
transport_handle_t transport_get_payload_transport_handle(transport_handle_t t);
/**
* @brief Set the user context data for this transport
*
@ -233,6 +245,7 @@ esp_err_t transport_set_context_data(transport_handle_t t, void *data);
* @param[in] _poll_read The poll read function pointer
* @param[in] _poll_write The poll write function pointer
* @param[in] _destroy The destroy function pointer
* @param[in] _parrent_transport The parrent transfer getter pointer
*
* @return
* - ESP_OK
@ -244,7 +257,8 @@ esp_err_t transport_set_func(transport_handle_t t,
trans_func _close,
poll_func _poll_read,
poll_func _poll_write,
trans_func _destroy);
trans_func _destroy,
payload_transfer_func _parrent_transport);
#ifdef __cplusplus
}
#endif

0
components/esp_http_client/lib/include/transport_ssl.h → components/tcp_transport/include/transport_ssl.h
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0
components/esp_http_client/lib/include/transport_tcp.h → components/tcp_transport/include/transport_tcp.h
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40
components/tcp_transport/include/transport_utils.h 100644
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@ -0,0 +1,40 @@
// Copyright 2015-2018 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef _TRANSPORT_UTILS_H_
#define _TRANSPORT_UTILS_H_
#include <sys/time.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Convert milliseconds to timeval struct
*
* @param[in] timeout_ms The timeout milliseconds
* @param[out] tv Timeval struct
*/
void transport_utils_ms_to_timeval(int timeout_ms, struct timeval *tv);
#define TRANSPORT_MEM_CHECK(TAG, a, action) if (!(a)) { \
ESP_LOGE(TAG,"%s:%d (%s): %s", __FILE__, __LINE__, __FUNCTION__, "Memory exhausted"); \
action; \
}
#ifdef __cplusplus
}
#endif
#endif /* _TRANSPORT_UTILS_H_ */

27
components/esp_http_client/lib/transport.c → components/tcp_transport/transport.c
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@ -20,7 +20,7 @@
#include "esp_log.h"
#include "transport.h"
#include "http_utils.h"
#include "transport_utils.h"
static const char *TAG = "TRANSPORT";
@ -40,6 +40,8 @@ struct transport_item_t {
poll_func _poll_read; /*!< Poll and read */
poll_func _poll_write; /*!< Poll and write */
trans_func _destroy; /*!< Destroy and free transport */
payload_transfer_func _parrent_transfer; /*!< Function returning underlying transport layer */
STAILQ_ENTRY(transport_item_t) next;
};
@ -53,7 +55,7 @@ STAILQ_HEAD(transport_list_t, transport_item_t);
transport_list_handle_t transport_list_init()
{
transport_list_handle_t list = calloc(1, sizeof(struct transport_list_t));
HTTP_MEM_CHECK(TAG, list, return NULL);
TRANSPORT_MEM_CHECK(TAG, list, return NULL);
STAILQ_INIT(list);
return list;
}
@ -64,7 +66,7 @@ esp_err_t transport_list_add(transport_list_handle_t list, transport_handle_t t,
return ESP_ERR_INVALID_ARG;
}
t->scheme = calloc(1, strlen(scheme) + 1);
HTTP_MEM_CHECK(TAG, t->scheme, return ESP_ERR_NO_MEM);
TRANSPORT_MEM_CHECK(TAG, t->scheme, return ESP_ERR_NO_MEM);
strcpy(t->scheme, scheme);
STAILQ_INSERT_TAIL(list, t, next);
return ESP_OK;
@ -113,10 +115,18 @@ esp_err_t transport_list_clean(transport_list_handle_t list)
transport_handle_t transport_init()
{
transport_handle_t t = calloc(1, sizeof(struct transport_item_t));
HTTP_MEM_CHECK(TAG, t, return NULL);
TRANSPORT_MEM_CHECK(TAG, t, return NULL);
return t;
}
transport_handle_t transport_get_payload_transport_handle(transport_handle_t t)
{
if (t && t->_read) {
return t->_parrent_transfer(t);
}
return NULL;
}
esp_err_t transport_destroy(transport_handle_t t)
{
if (t->scheme) {
@ -199,7 +209,8 @@ esp_err_t transport_set_func(transport_handle_t t,
trans_func _close,
poll_func _poll_read,
poll_func _poll_write,
trans_func _destroy)
trans_func _destroy,
payload_transfer_func _parrent_transport)
{
if (t == NULL) {
return ESP_FAIL;
@ -211,6 +222,7 @@ esp_err_t transport_set_func(transport_handle_t t,
t->_poll_read = _poll_read;
t->_poll_write = _poll_write;
t->_destroy = _destroy;
t->_parrent_transfer = _parrent_transport;
return ESP_OK;
}
@ -230,3 +242,8 @@ esp_err_t transport_set_default_port(transport_handle_t t, int port)
t->port = port;
return ESP_OK;
}
transport_handle_t transport_get_handle(transport_handle_t t)
{
return t;
}

12
components/esp_http_client/lib/transport_ssl.c → components/tcp_transport/transport_ssl.c
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@ -23,7 +23,7 @@
#include "transport.h"
#include "transport_ssl.h"
#include "http_utils.h"
#include "transport_utils.h"
static const char *TAG = "TRANS_SSL";
/**
@ -37,6 +37,8 @@ typedef struct {
bool verify_server;
} transport_ssl_t;
transport_handle_t transport_get_handle(transport_handle_t t);
static int ssl_close(transport_handle_t t);
static int ssl_connect(transport_handle_t t, const char *host, int port, int timeout_ms)
@ -65,7 +67,7 @@ static int ssl_poll_read(transport_handle_t t, int timeout_ms)
FD_ZERO(&readset);
FD_SET(ssl->tls->sockfd, &readset);
struct timeval timeout;
http_utils_ms_to_timeval(timeout_ms, &timeout);
transport_utils_ms_to_timeval(timeout_ms, &timeout);
return select(ssl->tls->sockfd + 1, &readset, NULL, NULL, &timeout);
}
@ -77,7 +79,7 @@ static int ssl_poll_write(transport_handle_t t, int timeout_ms)
FD_ZERO(&writeset);
FD_SET(ssl->tls->sockfd, &writeset);
struct timeval timeout;
http_utils_ms_to_timeval(timeout_ms, &timeout);
transport_utils_ms_to_timeval(timeout_ms, &timeout);
return select(ssl->tls->sockfd + 1, NULL, &writeset, NULL, &timeout);
}
@ -147,9 +149,9 @@ transport_handle_t transport_ssl_init()
{
transport_handle_t t = transport_init();
transport_ssl_t *ssl = calloc(1, sizeof(transport_ssl_t));
HTTP_MEM_CHECK(TAG, ssl, return NULL);
TRANSPORT_MEM_CHECK(TAG, ssl, return NULL);
transport_set_context_data(t, ssl);
transport_set_func(t, ssl_connect, ssl_read, ssl_write, ssl_close, ssl_poll_read, ssl_poll_write, ssl_destroy);
transport_set_func(t, ssl_connect, ssl_read, ssl_write, ssl_close, ssl_poll_read, ssl_poll_write, ssl_destroy, transport_get_handle);
return t;
}

14
components/esp_http_client/lib/transport_tcp.c → components/tcp_transport/transport_tcp.c
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@ -23,7 +23,7 @@
#include "esp_system.h"
#include "esp_err.h"
#include "http_utils.h"
#include "transport_utils.h"
#include "transport.h"
static const char *TAG = "TRANS_TCP";
@ -32,6 +32,8 @@ typedef struct {
int sock;
} transport_tcp_t;
transport_handle_t transport_get_handle(transport_handle_t t);
static int resolve_dns(const char *host, struct sockaddr_in *ip) {
struct hostent *he;
@ -74,7 +76,7 @@ static int tcp_connect(transport_handle_t t, const char *host, int port, int tim
remote_ip.sin_family = AF_INET;
remote_ip.sin_port = htons(port);
http_utils_ms_to_timeval(timeout_ms, &tv);
transport_utils_ms_to_timeval(timeout_ms, &tv);
setsockopt(tcp->sock, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
@ -119,7 +121,7 @@ static int tcp_poll_read(transport_handle_t t, int timeout_ms)
FD_ZERO(&readset);
FD_SET(tcp->sock, &readset);
struct timeval timeout;
http_utils_ms_to_timeval(timeout_ms, &timeout);
transport_utils_ms_to_timeval(timeout_ms, &timeout);
return select(tcp->sock + 1, &readset, NULL, NULL, &timeout);
}
@ -130,7 +132,7 @@ static int tcp_poll_write(transport_handle_t t, int timeout_ms)
FD_ZERO(&writeset);
FD_SET(tcp->sock, &writeset);
struct timeval timeout;
http_utils_ms_to_timeval(timeout_ms, &timeout);
transport_utils_ms_to_timeval(timeout_ms, &timeout);
return select(tcp->sock + 1, NULL, &writeset, NULL, &timeout);
}
@ -157,9 +159,9 @@ transport_handle_t transport_tcp_init()
{
transport_handle_t t = transport_init();
transport_tcp_t *tcp = calloc(1, sizeof(transport_tcp_t));
HTTP_MEM_CHECK(TAG, tcp, return NULL);
TRANSPORT_MEM_CHECK(TAG, tcp, return NULL);
tcp->sock = -1;
transport_set_func(t, tcp_connect, tcp_read, tcp_write, tcp_close, tcp_poll_read, tcp_poll_write, tcp_destroy);
transport_set_func(t, tcp_connect, tcp_read, tcp_write, tcp_close, tcp_poll_read, tcp_poll_write, tcp_destroy, transport_get_handle);
transport_set_context_data(t, tcp);
return t;

13
components/tcp_transport/transport_utils.c 100644
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@ -0,0 +1,13 @@
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <assert.h>
#include "transport_utils.h"
void transport_utils_ms_to_timeval(int timeout_ms, struct timeval *tv)
{
tv->tv_sec = timeout_ms / 1000;
tv->tv_usec = (timeout_ms - (tv->tv_sec * 1000)) * 1000;
}

2
docs/Doxyfile
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@ -92,6 +92,8 @@ INPUT = \
##
## ESP-TLS
../../components/esp-tls/esp_tls.h \
## MQTT
../../components/mqtt/esp-mqtt/include/mqtt_client.h \
## mDNS
../../components/mdns/include/mdns.h \
../../components/esp_http_client/include/esp_http_client.h \

3
docs/en/COPYRIGHT.rst
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@ -55,6 +55,8 @@ These third party libraries can be included into the application (firmware) prod
* :component:`Asio <asio>`, Copyright (c) 2003-2018 Christopher M. Kohlhoff is licensed under the Boost Software License.
* :component:`ESP-MQTT <mqtt>` MQTT Package (contiki-mqtt) - Copyright (c) 2014, Stephen Robinson, MQTT-ESP - Tuan PM <tuanpm at live dot com> is licensed under Apache License 2.0.
Build Tools
-----------
@ -155,3 +157,4 @@ Copyright (C) 2011, ChaN, all right reserved.
.. _Mbed TLS: https://github.com/ARMmbed/mbedtls
.. _spiffs: https://github.com/pellepl/spiffs
.. _asio: https://github.com/chriskohlhoff/asio
.. _mqtt: https://github.com/espressif/esp-mqtt

1
docs/en/api-reference/protocols/index.rst
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@ -9,5 +9,6 @@ Protocols API
HTTP Client <esp_http_client>
HTTP Server <http_server>
ASIO <asio>
ESP-MQTT <mqtt>
Example code for this API section is provided in :example:`protocols` directory of ESP-IDF examples.

112
docs/en/api-reference/protocols/mqtt.rst 100644
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@ -0,0 +1,112 @@
ESP-MQTT
========
Overview
--------
ESP-MQTT is an implementation of MQTT protocol client (MQTT is a lightweight publish/subscribe messaging protocol).
Features
--------
* supports MQTT over TCP, SSL with mbedtls, MQTT over Websocket, MQTT over Websocket Secure.
* Easy to setup with URI
* Multiple instances (Multiple clients in one application)
* Support subscribing, publishing, authentication, will messages, keep alive pings and all 3 QoS levels (it should be a fully functional client).
Application Example
-------------------
* :example:`protocols/mqtt/tcp`: MQTT over tcp, defalut port 1883
* :example:`protocols/mqtt/ssl`: MQTT over tcp, defalut port 8883
* :example:`protocols/mqtt/ws`: MQTT over Websocket, defalut port 80
* :example:`protocols/mqtt/wss`: MQTT over Websocket Secure, defalut port 443
Configuration
-------------
URI
^^^
- Curently support ``mqtt``, ``mqtts``, ``ws``, ``wss`` schemes
- MQTT over TCP samples:
- ``mqtt://iot.eclipse.org``: MQTT over TCP, default port 1883:
- ``mqtt://iot.eclipse.org:1884`` MQTT over TCP, port 1884:
- ``mqtt://username:password@iot.eclipse.org:1884`` MQTT over TCP,
port 1884, with username and password
- MQTT over SSL samples:
- ``mqtts://iot.eclipse.org``: MQTT over SSL, port 8883
- ``mqtts://iot.eclipse.org:8884``: MQTT over SSL, port 8884
- MQTT over Websocket samples:
- ``ws://iot.eclipse.org:80/ws``
- MQTT over Websocket Secure samples:
- ``wss://iot.eclipse.org:443/ws``
- Minimal configurations:
.. code:: c
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtt://iot.eclipse.org",
.event_handle = mqtt_event_handler,
// .user_context = (void *)your_context
};
- If there are any options related to the URI in
``esp_mqtt_client_config_t``, the option defined by the URI will be
overridden. Sample:
.. code:: c
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtt://iot.eclipse.org:1234",
.event_handle = mqtt_event_handler,
.port = 4567,
};
//MQTT client will connect to iot.eclipse.org using port 4567
SSL
^^^
- Get certificate from server, example: ``iot.eclipse.org``
``openssl s_client -showcerts -connect iot.eclipse.org:8883 </dev/null 2>/dev/null|openssl x509 -outform PEM >iot_eclipse_org.pem``
- Check the sample application: ``examples/mqtt_ssl``
- Configuration:
.. code:: cpp
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtts://iot.eclipse.org:8883",
.event_handle = mqtt_event_handler,
.cert_pem = (const char *)iot_eclipse_org_pem_start,
};
For more options on ``esp_mqtt_client_config_t``, please refer to API reference below
Change settings in ``menuconfig``
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
::
make menuconfig
-> Component config -> ESP-MQTT Configuration
- :envvar:`CONFIG_MQTT_PROTOCOL_311`: Enables 3.1.1 version of MQTT protocol
- :envvar:`MQTT_TRANSPORT_%TRANSPORT%`: Enables specific MQTT transport layer, such as SSL, WEBSOCKET, WEBSOCKET_SECURE
- :envvar:`MQTT_CUSTOM_OUTBOX`: Disables default implementation of mqtt_outbox, so a specific implementaion can be supplied
API Reference
-------------
.. include:: /_build/inc/mqtt_client.inc

1
docs/zh_CN/api-reference/protocols/mqtt.rst 100644
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@ -0,0 +1 @@
.. include:: ../../../en/api-reference/protocols/mqtt.rst

9
examples/protocols/mqtt/ssl/CMakeLists.txt 100644
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@ -0,0 +1,9 @@
# The following four lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(mqtt_ssl)
target_add_binary_data(mqtt_ssl.elf "main/iot_eclipse_org.pem" TEXT)

7
examples/protocols/mqtt/ssl/Makefile 100644
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@ -0,0 +1,7 @@
#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := mqtt_ssl
include $(IDF_PATH)/make/project.mk

67
examples/protocols/mqtt/ssl/README.md 100644
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@ -0,0 +1,67 @@
# ESP-MQTT SSL Sample application
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example connects to the broker iot.eclipse.org using ssl transport and as a demonstration subscribes/unsubscribes and send a message on certain topic.
It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
## How to use example
### Hardware Required
This example can be executed on any ESP32 board, the only required interface is WiFi and connection to internet.
### Configure the project
```
make menuconfig
```
* Set serial port under Serial Flasher Options.
* Set ssid and password for the board to connect to AP.
Note how to create a PEM certificate for iot.eclipse.org:
```
openssl s_client -showcerts -connect iot.eclipse.org:8883 </dev/null 2>/dev/null|openssl x509 -outform PEM >iot_eclipse_org.pem
```
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
make -j4 flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (3714) event: sta ip: 192.168.0.139, mask: 255.255.255.0, gw: 192.168.0.2
I (3714) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (3964) MQTT_CLIENT: Sending MQTT CONNECT message, type: 1, id: 0000
I (4164) MQTTS_EXAMPLE: MQTT_EVENT_CONNECTED
I (4174) MQTTS_EXAMPLE: sent publish successful, msg_id=41464
I (4174) MQTTS_EXAMPLE: sent subscribe successful, msg_id=17886
I (4174) MQTTS_EXAMPLE: sent subscribe successful, msg_id=42970
I (4184) MQTTS_EXAMPLE: sent unsubscribe successful, msg_id=50241
I (4314) MQTTS_EXAMPLE: MQTT_EVENT_PUBLISHED, msg_id=41464
I (4484) MQTTS_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=17886
I (4484) MQTTS_EXAMPLE: sent publish successful, msg_id=0
I (4684) MQTTS_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=42970
I (4684) MQTTS_EXAMPLE: sent publish successful, msg_id=0
I (4884) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (4884) MQTTS_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
I (5194) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (5194) MQTTS_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
```

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examples/protocols/mqtt/ssl/main/CMakeLists.txt 100644
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set(COMPONENT_SRCS "app_main.c")
set(COMPONENT_ADD_INCLUDEDIRS ".")
register_component()

15
examples/protocols/mqtt/ssl/main/Kconfig.projbuild 100644
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menu "Example Configuration"
config WIFI_SSID
string "WiFi SSID"
default "myssid"
help
SSID (network name) for the example to connect to.
config WIFI_PASSWORD
string "WiFi Password"
default "mypassword"
help
WiFi password (WPA or WPA2) for the example to use.
endmenu

149
examples/protocols/mqtt/ssl/main/app_main.c 100644
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#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "esp_wifi.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "esp_event_loop.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "freertos/event_groups.h"
#include "lwip/sockets.h"
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "esp_log.h"
#include "mqtt_client.h"
static const char *TAG = "MQTTS_EXAMPLE";
static EventGroupHandle_t wifi_event_group;
const static int CONNECTED_BIT = BIT0;
static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
{
switch (event->event_id) {
case SYSTEM_EVENT_STA_START:
esp_wifi_connect();
break;
case SYSTEM_EVENT_STA_GOT_IP:
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
esp_wifi_connect();
xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
break;
default:
break;
}
return ESP_OK;
}
static void wifi_init(void)
{
tcpip_adapter_init();
wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_event_loop_init(wifi_event_handler, NULL));
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
wifi_config_t wifi_config = {
.sta = {
.ssid = CONFIG_WIFI_SSID,
.password = CONFIG_WIFI_PASSWORD,
},
};
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
ESP_LOGI(TAG, "start the WIFI SSID:[%s]", CONFIG_WIFI_SSID);
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(TAG, "Waiting for wifi");
xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
}
extern const uint8_t iot_eclipse_org_pem_start[] asm("_binary_iot_eclipse_org_pem_start");
extern const uint8_t iot_eclipse_org_pem_end[] asm("_binary_iot_eclipse_org_pem_end");
static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
{
esp_mqtt_client_handle_t client = event->client;
int msg_id;
// your_context_t *context = event->context;
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
printf("DATA=%.*s\r\n", event->data_len, event->data);
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
}
return ESP_OK;
}
static void mqtt_app_start(void)
{
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "mqtts://iot.eclipse.org:8883",
.event_handle = mqtt_event_handler,
.cert_pem = (const char *)iot_eclipse_org_pem_start,
};
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_start(client);
}
void app_main()
{
ESP_LOGI(TAG, "[APP] Startup..");
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
esp_log_level_set("*", ESP_LOG_INFO);
esp_log_level_set("MQTT_CLIENT", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_SSL", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT", ESP_LOG_VERBOSE);
esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
nvs_flash_init();
wifi_init();
mqtt_app_start();
}

1
examples/protocols/mqtt/ssl/main/component.mk 100644
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COMPONENT_EMBED_TXTFILES := iot_eclipse_org.pem

27
examples/protocols/mqtt/ssl/main/iot_eclipse_org.pem 100644
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@ -0,0 +1,27 @@
-----BEGIN CERTIFICATE-----
MIIEkjCCA3qgAwIBAgIQCgFBQgAAAVOFc2oLheynCDANBgkqhkiG9w0BAQsFADA/
MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT
DkRTVCBSb290IENBIFgzMB4XDTE2MDMxNzE2NDA0NloXDTIxMDMxNzE2NDA0Nlow
SjELMAkGA1UEBhMCVVMxFjAUBgNVBAoTDUxldCdzIEVuY3J5cHQxIzAhBgNVBAMT
GkxldCdzIEVuY3J5cHQgQXV0aG9yaXR5IFgzMIIBIjANBgkqhkiG9w0BAQEFAAOC
AQ8AMIIBCgKCAQEAnNMM8FrlLke3cl03g7NoYzDq1zUmGSXhvb418XCSL7e4S0EF
q6meNQhY7LEqxGiHC6PjdeTm86dicbp5gWAf15Gan/PQeGdxyGkOlZHP/uaZ6WA8
SMx+yk13EiSdRxta67nsHjcAHJyse6cF6s5K671B5TaYucv9bTyWaN8jKkKQDIZ0
Z8h/pZq4UmEUEz9l6YKHy9v6Dlb2honzhT+Xhq+w3Brvaw2VFn3EK6BlspkENnWA
a6xK8xuQSXgvopZPKiAlKQTGdMDQMc2PMTiVFrqoM7hD8bEfwzB/onkxEz0tNvjj
/PIzark5McWvxI0NHWQWM6r6hCm21AvA2H3DkwIDAQABo4IBfTCCAXkwEgYDVR0T
AQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwfwYIKwYBBQUHAQEEczBxMDIG
CCsGAQUFBzABhiZodHRwOi8vaXNyZy50cnVzdGlkLm9jc3AuaWRlbnRydXN0LmNv
bTA7BggrBgEFBQcwAoYvaHR0cDovL2FwcHMuaWRlbnRydXN0LmNvbS9yb290cy9k
c3Ryb290Y2F4My5wN2MwHwYDVR0jBBgwFoAUxKexpHsscfrb4UuQdf/EFWCFiRAw
VAYDVR0gBE0wSzAIBgZngQwBAgEwPwYLKwYBBAGC3xMBAQEwMDAuBggrBgEFBQcC
ARYiaHR0cDovL2Nwcy5yb290LXgxLmxldHNlbmNyeXB0Lm9yZzA8BgNVHR8ENTAz
MDGgL6AthitodHRwOi8vY3JsLmlkZW50cnVzdC5jb20vRFNUUk9PVENBWDNDUkwu
Y3JsMB0GA1UdDgQWBBSoSmpjBH3duubRObemRWXv86jsoTANBgkqhkiG9w0BAQsF
AAOCAQEA3TPXEfNjWDjdGBX7CVW+dla5cEilaUcne8IkCJLxWh9KEik3JHRRHGJo
uM2VcGfl96S8TihRzZvoroed6ti6WqEBmtzw3Wodatg+VyOeph4EYpr/1wXKtx8/
wApIvJSwtmVi4MFU5aMqrSDE6ea73Mj2tcMyo5jMd6jmeWUHK8so/joWUoHOUgwu
X4Po1QYz+3dszkDqMp4fklxBwXRsW10KXzPMTZ+sOPAveyxindmjkW8lGy+QsRlG
PfZ+G6Z6h7mjem0Y+iWlkYcV4PIWL1iwBi8saCbGS5jN2p8M+X+Q7UNKEkROb3N6
KOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==
-----END CERTIFICATE-----

132
examples/protocols/mqtt/ssl/mqtt_ssl_example_test.py 100644
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import re
import os
import sys
import time
import socket
import imp
import ssl
use_mqtt_client_sketch = False
try:
imp.find_module('paho')
import paho.mqtt.client as mqtt
# Make things with supposed existing module
except ImportError:
use_mqtt_client_sketch = True
pass
global g_recv_topic
global g_recv_data
g_recv_data=""
# This is only a workaround for running mqtt client with 'hardcoded' data using plain socket interface
def mqtt_client_sketch():
global g_recv_topic
global g_recv_data
connect_msg = bytearray([0x10, 0x0c, 00, 0x04, 0x4d, 0x51, 0x54, 0x54, 0x04, 0x02, 00, 0x3c, 00, 00])
send_qos0_msg = bytearray([ 0x30, 0x1a, 0x00, 0x0b, 0x2f, 0x74, 0x6f, 0x70, 0x69, 0x63, 0x2f, 0x71, 0x6f, 0x73, 0x30, 0x64, 0x61, 0x74, 0x61, 0x5f, 0x74, 0x6f, 0x5f, 0x65, 0x73, 0x70, 0x33, 0x32])
subscribe_qos0 = bytearray([ 0x82, 0x10, 0x00, 0x01, 0x00, 0x0b, 0x2f, 0x74, 0x6f, 0x70, 0x69, 0x63, 0x2f, 0x71, 0x6f, 0x73, 0x30, 0x00] )
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.settimeout(30)
cli = ssl.wrap_socket(client)
cli.connect(("iot.eclipse.org", 8883))
cli.send(connect_msg)
data = cli.recv(1024)
print("Connect ack received {}".format(data))
cli.send(subscribe_qos0)
data = cli.recv(1024)
print("Subscibe ack received {}".format(data))
start = time.time()
while (time.time() - start) <= 20:
data = cli.recv(1024)
print("Data received {}".format(data[-17:]))
if data[-15:] == "/topic/qos0data":
g_recv_topic = data[-15:][:11]
g_recv_data = data[-4:]
cli.send(send_qos0_msg)
data = cli.recv(1024)
print("data ack received {}".format(data))
break
cli.close()
# The callback for when the client receives a CONNACK response from the server.
def on_connect(client, userdata, flags, rc):
print("Connected with result code "+str(rc))
client.subscribe("/topic/qos0")
# The callback for when a PUBLISH message is received from the server.
def on_message(client, userdata, msg):
global g_recv_topic
global g_recv_data
if g_recv_data == "" and msg.payload == "data":
client.publish("/topic/qos0", "data_to_esp32")
g_recv_topic = msg.topic
g_recv_data = msg.payload
print(msg.topic+" "+str(msg.payload))
# this is a test case write with tiny-test-fw.
# to run test cases outside tiny-test-fw,
# we need to set environment variable `TEST_FW_PATH`,
# then get and insert `TEST_FW_PATH` to sys path before import FW module
test_fw_path = os.getenv("TEST_FW_PATH")
if test_fw_path and test_fw_path not in sys.path:
sys.path.insert(0, test_fw_path)
import TinyFW
import IDF
@IDF.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_mqtt_ssl(env, extra_data):
global g_recv_topic
global g_recv_data
"""
steps: |
1. join AP and connects to ssl broker
2. Test connects a client to the same broker
3. Test evaluates python client received correct qos0 message
4. Test ESP32 client received correct qos0 message
"""
dut1 = env.get_dut("mqtt_ssl", "examples/protocols/mqtt/ssl")
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, "mqtt_ssl.bin")
bin_size = os.path.getsize(binary_file)
IDF.log_performance("mqtt_ssl_bin_size", "{}KB".format(bin_size//1024))
IDF.check_performance("mqtt_ssl_size", bin_size//1024)
# 1. start test
dut1.start_app()
# 2. Test connects to a broker
if use_mqtt_client_sketch:
mqtt_client_sketch()
else:
client = mqtt.Client()
client.on_connect = on_connect
client.on_message = on_message
client.tls_set(None,
None,
None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1, ciphers=None)
client.tls_insecure_set(True)
print "Connecting..."
client.connect("iot.eclipse.org", 8883, 60)
print "...done"
print "Start Looping..."
start = time.time()
while (time.time() - start) <= 20:
client.loop()
print "...done"
# 3. check the message received back from the server
if g_recv_topic == "/topic/qos0" and g_recv_data == "data" :
print("PASS: Received correct message")
else:
print("Failure!")
raise ValueError('Wrong data received topic: {}, data:{}'.format(g_recv_topic, g_recv_data))
# 4. check that the esp32 client received data sent by this python client
dut1.expect(re.compile(r"DATA=data_to_esp32"), timeout=30)
if __name__ == '__main__':
test_examples_protocol_mqtt_ssl()

7
examples/protocols/mqtt/tcp/CMakeLists.txt 100644
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# The following four lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(mqtt_tcp)

7
examples/protocols/mqtt/tcp/Makefile 100644
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#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := mqtt_tcp
include $(IDF_PATH)/make/project.mk

61
examples/protocols/mqtt/tcp/README.md 100644
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# ESP-MQTT sample application
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example connects to the broker URI selected using `make menuconfig` (using mqtt tcp transport) and as a demonstration subscribes/unsubscribes and send a message on certain topic.
Note: If the URI equals `FROM_STDIN` then the broker address is read from stdin upon application startup (used for testing)
It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
## How to use example
### Hardware Required
This example can be executed on any ESP32 board, the only required interface is WiFi and connection to internet.
### Configure the project
```
make menuconfig
```
* Set serial port under Serial Flasher Options.
* Set ssid and password for the board to connect to AP.
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
make -j4 flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (3714) event: sta ip: 192.168.0.139, mask: 255.255.255.0, gw: 192.168.0.2
I (3714) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (3964) MQTT_CLIENT: Sending MQTT CONNECT message, type: 1, id: 0000
I (4164) MQTT_EXAMPLE: MQTT_EVENT_CONNECTED
I (4174) MQTT_EXAMPLE: sent publish successful, msg_id=41464
I (4174) MQTT_EXAMPLE: sent subscribe successful, msg_id=17886
I (4174) MQTT_EXAMPLE: sent subscribe successful, msg_id=42970
I (4184) MQTT_EXAMPLE: sent unsubscribe successful, msg_id=50241
I (4314) MQTT_EXAMPLE: MQTT_EVENT_PUBLISHED, msg_id=41464
I (4484) MQTT_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=17886
I (4484) MQTT_EXAMPLE: sent publish successful, msg_id=0
I (4684) MQTT_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=42970
I (4684) MQTT_EXAMPLE: sent publish successful, msg_id=0
I (4884) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (4884) MQTT_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
I (5194) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (5194) MQTT_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
```

4
examples/protocols/mqtt/tcp/main/CMakeLists.txt 100644
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set(COMPONENT_SRCS "app_main.c")
set(COMPONENT_ADD_INCLUDEDIRS ".")
register_component()

25
examples/protocols/mqtt/tcp/main/Kconfig.projbuild 100644
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menu "Example Configuration"
config WIFI_SSID
string "WiFi SSID"
default "myssid"
help
SSID (network name) for the example to connect to.
config WIFI_PASSWORD
string "WiFi Password"
default "mypassword"
help
WiFi password (WPA or WPA2) for the example to use.
config BROKER_URL
string "Broker URL"
default "mqtt://iot.eclipse.org"
help
URL of the broker to connect to
config BROKER_URL_FROM_STDIN
bool
default y if BROKER_URL = "FROM_STDIN"
endmenu

171
examples/protocols/mqtt/tcp/main/app_main.c 100644
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#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "esp_wifi.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "esp_event_loop.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "freertos/event_groups.h"
#include "lwip/sockets.h"
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "esp_log.h"
#include "mqtt_client.h"
static const char *TAG = "MQTT_EXAMPLE";
static EventGroupHandle_t wifi_event_group;
const static int CONNECTED_BIT = BIT0;
static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
{
esp_mqtt_client_handle_t client = event->client;
int msg_id;
// your_context_t *context = event->context;
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
msg_id = esp_mqtt_client_publish(client, "/topic/qos1", "data_3", 0, 1, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
printf("DATA=%.*s\r\n", event->data_len, event->data);
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
}
return ESP_OK;
}
static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
{
switch (event->event_id) {
case SYSTEM_EVENT_STA_START:
esp_wifi_connect();
break;
case SYSTEM_EVENT_STA_GOT_IP:
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
esp_wifi_connect();
xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
break;
default:
break;
}
return ESP_OK;
}
static void wifi_init(void)
{
tcpip_adapter_init();
wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_event_loop_init(wifi_event_handler, NULL));
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
wifi_config_t wifi_config = {
.sta = {
.ssid = CONFIG_WIFI_SSID,
.password = CONFIG_WIFI_PASSWORD,
},
};
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
ESP_LOGI(TAG, "start the WIFI SSID:[%s]", CONFIG_WIFI_SSID);
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(TAG, "Waiting for wifi");
xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
}
static void mqtt_app_start(void)
{
esp_mqtt_client_config_t mqtt_cfg = {
.uri = CONFIG_BROKER_URL,
.event_handle = mqtt_event_handler,
// .user_context = (void *)your_context
};
#if CONFIG_BROKER_URL_FROM_STDIN
char line[128];
if (strcmp(mqtt_cfg.uri, "FROM_STDIN") == 0) {
int count = 0;
printf("Please enter url of mqtt broker\n");
while (count < 128) {
int c = fgetc(stdin);
if (c == '\n') {
line[count] = '\0';
break;
} else if (c > 0 && c < 127) {
line[count] = c;
++count;
}
vTaskDelay(10 / portTICK_PERIOD_MS);
}
mqtt_cfg.uri = line;
printf("Broker url: %s\n", line);
} else {
ESP_LOGE(TAG, "Configuration mismatch: wrong broker url");
abort();
}
#endif /* CONFIG_BROKER_URL_FROM_STDIN */
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_start(client);
}
void app_main()
{
ESP_LOGI(TAG, "[APP] Startup..");
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
esp_log_level_set("*", ESP_LOG_INFO);
esp_log_level_set("MQTT_CLIENT", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_SSL", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT", ESP_LOG_VERBOSE);
esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
nvs_flash_init();
wifi_init();
mqtt_app_start();
}

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examples/protocols/mqtt/tcp/main/component.mk 100644
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import re
import os
import sys
from socket import *
from threading import Thread
import time
global msgid
def get_my_ip():
s1 = socket(AF_INET, SOCK_DGRAM)
s1.connect(("8.8.8.8", 80))
my_ip = s1.getsockname()[0]
s1.close()
return my_ip
def mqqt_server_sketch(my_ip, port):
global msgid
print("Starting the server on {}".format(my_ip))
s=socket(AF_INET, SOCK_STREAM)
s.settimeout(60)
s.bind((my_ip, port))
s.listen(1)
q,addr=s.accept()
q.settimeout(30)
print("connection accepted")
# q.send(g_msg_to_client)
data = q.recv(1024)
# check if received initial empty message
print("received from client {}".format(data))
data = bytearray([0x20, 0x02, 0x00, 0x00])
q.send(data)
# try to receive qos1
data = q.recv(1024)
msgid = ord(data[15])*256+ord(data[16])
print("received from client {}, msgid: {}".format(data, msgid))
data = bytearray([0x40, 0x02, data[15], data[16]])
q.send(data)
time.sleep(5)
s.close()
print("server closed")
# this is a test case write with tiny-test-fw.
# to run test cases outside tiny-test-fw,
# we need to set environment variable `TEST_FW_PATH`,
# then get and insert `TEST_FW_PATH` to sys path before import FW module
test_fw_path = os.getenv("TEST_FW_PATH")
if test_fw_path and test_fw_path not in sys.path:
sys.path.insert(0, test_fw_path)
import TinyFW
import IDF
@IDF.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_mqtt_qos1(env, extra_data):
global msgid
"""
steps: (QoS1: Happy flow)
1. start the broker broker (with correctly sending ACK)
2. DUT client connects to a broker and publishes qos1 message
3. Test evaluates that qos1 message is queued and removed from queued after ACK received
4. Test the broker received the same message id evaluated in step 3
"""
dut1 = env.get_dut("mqtt_tcp", "examples/protocols/mqtt/tcp")
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, "mqtt_tcp.bin")
bin_size = os.path.getsize(binary_file)
IDF.log_performance("mqtt_tcp_bin_size", "{}KB".format(bin_size//1024))
IDF.check_performance("mqtt_tcp_size", bin_size//1024)
# 1. start mqtt broker sketch
host_ip = get_my_ip()
thread1 = Thread(target = mqqt_server_sketch, args = (host_ip,1883))
thread1.start()
# 2. start the dut test and wait till client gets IP address
dut1.start_app()
# waiting for getting the IP address
data = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=30)
# time.sleep(15)
print ("writing to device: {}".format("mqtt://" + host_ip + "\n"))
dut1.write("mqtt://" + host_ip + "\n")
thread1.join()
print ("Message id received from server: {}".format(msgid))
# 3. check the message id was enqueued and then deleted
msgid_enqueued = dut1.expect(re.compile(r"OUTBOX: ENQUEUE msgid=([0-9]+)"), timeout=30)
# expect_txt="OUTBOX: ENQUEUE msgid=" + str(msgid)
# dut1.expect(re.compile(expect_txt), timeout=30)
msgid_deleted = dut1.expect(re.compile(r"OUTBOX: DELETED msgid=([0-9]+)"), timeout=30)
# expect_txt="OUTBOX: DELETED msgid=" + str(msgid)
# dut1.expect(re.compile(expect_txt), timeout=30)
# 4. check the msgid of received data are the same as that of enqueued and deleted from outbox
if (msgid_enqueued[0] == str(msgid) and msgid_deleted[0] == str(msgid)):
print("PASS: Received correct msg id")
else:
print("Failure!")
raise ValueError('Mismatch of msgid: received: {}, enqueued {}, deleted {}'.format(msgid, msgid_enqueued, msgid_deleted))
if __name__ == '__main__':
test_examples_protocol_mqtt_qos1()

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examples/protocols/mqtt/tcp/sdkconfig 100644
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examples/protocols/mqtt/tcp/sdkconfig.defaults 100644
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CONFIG_BROKER_URL="FROM_STDIN"
CONFIG_LOG_DEFAULT_LEVEL_NONE=
CONFIG_LOG_DEFAULT_LEVEL_ERROR=
CONFIG_LOG_DEFAULT_LEVEL_WARN=
CONFIG_LOG_DEFAULT_LEVEL_INFO=
CONFIG_LOG_DEFAULT_LEVEL_DEBUG=y
CONFIG_LOG_DEFAULT_LEVEL_VERBOSE=

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examples/protocols/mqtt/ws/CMakeLists.txt 100644
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# The following four lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(mqtt_websocket)

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examples/protocols/mqtt/ws/Makefile 100644
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#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := mqtt_websocket
include $(IDF_PATH)/make/project.mk

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examples/protocols/mqtt/ws/README.md 100644
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# ESP-MQTT MQTT over Websocket
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example connects to the broker iot.eclipse.org over web sockets as a demonstration subscribes/unsubscribes and send a message on certain topic.
It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
## How to use example
### Hardware Required
This example can be executed on any ESP32 board, the only required interface is WiFi and connection to internet.
### Configure the project
```
make menuconfig
```
* Set serial port under Serial Flasher Options.
* Set ssid and password for the board to connect to AP.
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
make -j4 flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (3714) event: sta ip: 192.168.0.139, mask: 255.255.255.0, gw: 192.168.0.2
I (3714) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (3964) MQTT_CLIENT: Sending MQTT CONNECT message, type: 1, id: 0000
I (4164) MQTTWS_EXAMPLE: MQTT_EVENT_CONNECTED
I (4174) MQTTWS_EXAMPLE: sent publish successful, msg_id=41464
I (4174) MQTTWS_EXAMPLE: sent subscribe successful, msg_id=17886
I (4174) MQTTWS_EXAMPLE: sent subscribe successful, msg_id=42970
I (4184) MQTTWS_EXAMPLE: sent unsubscribe successful, msg_id=50241
I (4314) MQTTWS_EXAMPLE: MQTT_EVENT_PUBLISHED, msg_id=41464
I (4484) MQTTWS_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=17886
I (4484) MQTTWS_EXAMPLE: sent publish successful, msg_id=0
I (4684) MQTTWS_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=42970
I (4684) MQTTWS_EXAMPLE: sent publish successful, msg_id=0
I (4884) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (4884) MQTTWS_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
I (5194) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (5194) MQTTWS_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
```

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examples/protocols/mqtt/ws/main/CMakeLists.txt 100644
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set(COMPONENT_SRCS "app_main.c")
set(COMPONENT_ADD_INCLUDEDIRS ".")
register_component()

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examples/protocols/mqtt/ws/main/Kconfig.projbuild 100644
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menu "Example Configuration"
config WIFI_SSID
string "WiFi SSID"
default "myssid"
help
SSID (network name) for the example to connect to.
config WIFI_PASSWORD
string "WiFi Password"
default "mypassword"
help
WiFi password (WPA or WPA2) for the example to use.
endmenu

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examples/protocols/mqtt/ws/main/app_main.c 100644
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#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "esp_wifi.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "esp_event_loop.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "freertos/event_groups.h"
#include "lwip/sockets.h"
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "esp_log.h"
#include "mqtt_client.h"
static const char *TAG = "MQTTWS_EXAMPLE";
static EventGroupHandle_t wifi_event_group;
const static int CONNECTED_BIT = BIT0;
static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
{
esp_mqtt_client_handle_t client = event->client;
int msg_id;
// your_context_t *context = event->context;
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
printf("DATA=%.*s\r\n", event->data_len, event->data);
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
}
return ESP_OK;
}
static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
{
switch (event->event_id) {
case SYSTEM_EVENT_STA_START:
esp_wifi_connect();
break;
case SYSTEM_EVENT_STA_GOT_IP:
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
esp_wifi_connect();
xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
break;
default:
break;
}
return ESP_OK;
}
static void wifi_init(void)
{
tcpip_adapter_init();
wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_event_loop_init(wifi_event_handler, NULL));
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
wifi_config_t wifi_config = {
.sta = {
.ssid = CONFIG_WIFI_SSID,
.password = CONFIG_WIFI_PASSWORD,
},
};
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
ESP_LOGI(TAG, "start the WIFI SSID:[%s]", CONFIG_WIFI_SSID);
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(TAG, "Waiting for wifi");
xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
}
static void mqtt_app_start(void)
{
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "ws://iot.eclipse.org:80/ws",
.event_handle = mqtt_event_handler,
// .user_context = (void *)your_context
};
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_start(client);
}
void app_main()
{
ESP_LOGI(TAG, "[APP] Startup..");
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
esp_log_level_set("*", ESP_LOG_INFO);
esp_log_level_set("MQTT_CLIENT", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_SSL", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_WS", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT", ESP_LOG_VERBOSE);
esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
nvs_flash_init();
wifi_init();
mqtt_app_start();
}

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examples/protocols/mqtt/ws/main/component.mk 100644
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examples/protocols/mqtt/ws/mqtt_ws_example_test.py 100644
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import re
import os
import sys
import time
import socket
import imp
use_mqtt_client_sketch = False
try:
imp.find_module('paho')
import paho.mqtt.client as mqtt
# Make things with supposed existing module
except ImportError:
use_mqtt_client_sketch = True
pass
global g_recv_topic
global g_recv_data
g_recv_data=""
# This is only a workaround for running mqtt client with 'hardcoded' data using plain socket interface
def mqtt_client_sketch():
global g_recv_topic
global g_recv_data
http_connect = bytearray([ 0x47, 0x45, 0x54, 0x20, 0x2f, 0x77, 0x73, 0x20, 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, 0x2e, 0x31, 0x0d, 0x0a, 0x4f, 0x72, 0x69, 0x67, 0x69, 0x6e, 0x3a, 0x20, 0x68, 0x74, 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x69, 0x6f, 0x74, 0x2e, 0x65, 0x63, 0x6c, 0x69, 0x70, 0x73, 0x65, 0x2e, 0x6f, 0x72, 0x67, 0x3a, 0x38, 0x30, 0x0d, 0x0a, 0x55, 0x70, 0x67, 0x72, 0x61, 0x64, 0x65, 0x3a, 0x20, 0x77, 0x65, 0x62, 0x73, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x0d, 0x0a, 0x53, 0x65, 0x63, 0x2d, 0x57, 0x65, 0x62, 0x73, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x2d, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x3a, 0x20, 0x31, 0x33, 0x0d, 0x0a, 0x53, 0x65, 0x63, 0x2d, 0x57, 0x65, 0x62, 0x73, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x2d, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x3a, 0x20, 0x6d, 0x71, 0x74, 0x74, 0x0d, 0x0a, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x3a, 0x20, 0x55, 0x70, 0x67, 0x72, 0x61, 0x64, 0x65, 0x0d, 0x0a, 0x53, 0x65, 0x63, 0x2d, 0x57, 0x65, 0x62, 0x53, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x2d, 0x4b, 0x65, 0x79, 0x3a, 0x20, 0x6c, 0x35, 0x61, 0x50, 0x41, 0x64, 0x6d, 0x4a, 0x52, 0x65, 0x32, 0x79, 0x55, 0x42, 0x79, 0x68, 0x37, 0x35, 0x72, 0x58, 0x68, 0x51, 0x3d, 0x3d, 0x0d, 0x0a, 0x48, 0x6f, 0x73, 0x74, 0x3a, 0x20, 0x69, 0x6f, 0x74, 0x2e, 0x65, 0x63, 0x6c, 0x69, 0x70, 0x73, 0x65, 0x2e, 0x6f, 0x72, 0x67, 0x3a, 0x38, 0x30, 0x0d, 0x0a, 0x0d, 0x0a])
connect_msg = bytearray([0x82, 0x8e, 0x82, 0x1a, 0xe6, 0x22, 0x92, 0x16, 0xe6, 0x26, 0xcf, 0x4b, 0xb2, 0x76, 0x86, 0x18, 0xe6, 0x1e, 0x82, 0x1a])
send_qos0_msg = bytearray([ 0x82, 0x9c, 0x44, 0x78, 0xdf, 0x8e, 0x74, 0x62, 0xdf, 0x85, 0x6b, 0x0c, 0xb0, 0xfe, 0x2d, 0x1b, 0xf0, 0xff, 0x2b, 0x0b, 0xef, 0xea, 0x25, 0x0c, 0xbe, 0xd1, 0x30, 0x17, 0x80, 0xeb, 0x37, 0x08, 0xec, 0xbc ])
subscribe_qos0 = bytearray([ 0x82, 0x92, 0x8e, 0x31, 0x8c, 0x4a, 0x0c, 0x21, 0x8c, 0x4b, 0x8e, 0x3a, 0xa3, 0x3e, 0xe1, 0x41, 0xe5, 0x29, 0xa1, 0x40, 0xe3, 0x39, 0xbe, 0x31] )
cli = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
cli.settimeout(30)
cli.connect(("iot.eclipse.org", 80))
cli.send(http_connect)
cli.send(connect_msg)
data = cli.recv(1024)
print("Connect ack received {}".format(data))
cli.send(subscribe_qos0)
data = cli.recv(1024)
print("Subscibe ack received {}".format(data))
start = time.time()
while (time.time() - start) <= 20:
data = cli.recv(1024)
print("Data received {}".format(data[-17:]))
if data[-15:] == "/topic/qos0data":
g_recv_topic = data[-15:][:11]
g_recv_data = data[-4:]
cli.send(send_qos0_msg)
data = cli.recv(1024)
print("data ack received {}".format(data))
break
cli.close()
# The callback for when the client receives a CONNACK response from the server.
def on_connect(client, userdata, flags, rc):
print("Connected with result code "+str(rc))
client.subscribe("/topic/qos0")
# The callback for when a PUBLISH message is received from the server.
def on_message(client, userdata, msg):
global g_recv_topic
global g_recv_data
if g_recv_data == "" and msg.payload == "data":
client.publish("/topic/qos0", "data_to_esp32")
g_recv_topic = msg.topic
g_recv_data = msg.payload
print(msg.topic+" "+str(msg.payload))
# this is a test case write with tiny-test-fw.
# to run test cases outside tiny-test-fw,
# we need to set environment variable `TEST_FW_PATH`,
# then get and insert `TEST_FW_PATH` to sys path before import FW module
test_fw_path = os.getenv("TEST_FW_PATH")
if test_fw_path and test_fw_path not in sys.path:
sys.path.insert(0, test_fw_path)
import TinyFW
import IDF
@IDF.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_mqtt_ws(env, extra_data):
global g_recv_topic
global g_recv_data
"""
steps: |
1. join AP and connects to ws broker
2. Test connects a client to the same broker
3. Test evaluates it received correct qos0 message
4. Test ESP32 client received correct qos0 message
"""
dut1 = env.get_dut("mqtt_websocket", "examples/protocols/mqtt/ws")
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, "mqtt_websocket.bin")
bin_size = os.path.getsize(binary_file)
IDF.log_performance("mqtt_websocket_bin_size", "{}KB".format(bin_size//1024))
IDF.check_performance("mqtt_websocket_size", bin_size//1024)
# 1. start test
dut1.start_app()
# 2. Test connects to a broker
if use_mqtt_client_sketch:
mqtt_client_sketch()
else:
client = mqtt.Client(transport="websockets")
client.on_connect = on_connect
client.on_message = on_message
client.ws_set_options(path="/ws", headers=None)
print "Connecting..."
client.connect("iot.eclipse.org", 80, 60)
print "...done"
print "Start Looping..."
start = time.time()
while (time.time() - start) <= 20:
client.loop()
print "...done"
# 3. check the message received back from the server
if g_recv_topic == "/topic/qos0" and g_recv_data == "data" :
print("PASS: Received correct message")
else:
print("Failure!")
raise ValueError('Wrong data received topic: {}, data:{}'.format(g_recv_topic, g_recv_data))
# 4. check that the esp32 client received data sent by this python client
dut1.expect(re.compile(r"DATA=data_to_esp32"), timeout=30)
if __name__ == '__main__':
test_examples_protocol_mqtt_ws()

9
examples/protocols/mqtt/wss/CMakeLists.txt 100644
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# The following four lines of boilerplate have to be in your project's CMakeLists
# in this exact order for cmake to work correctly
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(mqtt_websocket_secure)
target_add_binary_data(mqtt_websocket_secure.elf "main/iot_eclipse_org.pem" TEXT)

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examples/protocols/mqtt/wss/Makefile 100644
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#
# This is a project Makefile. It is assumed the directory this Makefile resides in is a
# project subdirectory.
#
PROJECT_NAME := mqtt_websocket_secure
include $(IDF_PATH)/make/project.mk

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examples/protocols/mqtt/wss/README.md 100644
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# ESP-MQTT MQTT over WSS Sample application
(See the README.md file in the upper level 'examples' directory for more information about examples.)
This example connects to the broker iot.eclipse.org over secure websockets and as a demonstration subscribes/unsubscribes and send a message on certain topic.
It uses ESP-MQTT library which implements mqtt client to connect to mqtt broker.
## How to use example
### Hardware Required
This example can be executed on any ESP32 board, the only required interface is WiFi and connection to internet.
### Configure the project
```
make menuconfig
```
* Set serial port under Serial Flasher Options.
* Set ssid and password for the board to connect to AP.
Note how to create a PEM certificate for iot.eclipse.org:
```
openssl s_client -showcerts -connect iot.eclipse.org:8883 </dev/null 2>/dev/null|openssl x509 -outform PEM >iot_eclipse_org.pem
```
### Build and Flash
Build the project and flash it to the board, then run monitor tool to view serial output:
```
make -j4 flash monitor
```
(To exit the serial monitor, type ``Ctrl-]``.)
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
## Example Output
```
I (3714) event: sta ip: 192.168.0.139, mask: 255.255.255.0, gw: 192.168.0.2
I (3714) system_api: Base MAC address is not set, read default base MAC address from BLK0 of EFUSE
I (3964) MQTT_CLIENT: Sending MQTT CONNECT message, type: 1, id: 0000
I (4164) MQTTWSS_EXAMPLE: MQTT_EVENT_CONNECTED
I (4174) MQTTWSS_EXAMPLE: sent publish successful, msg_id=41464
I (4174) MQTTWSS_EXAMPLE: sent subscribe successful, msg_id=17886
I (4174) MQTTWSS_EXAMPLE: sent subscribe successful, msg_id=42970
I (4184) MQTTWSS_EXAMPLE: sent unsubscribe successful, msg_id=50241
I (4314) MQTTWSS_EXAMPLE: MQTT_EVENT_PUBLISHED, msg_id=41464
I (4484) MQTTWSS_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=17886
I (4484) MQTTWSS_EXAMPLE: sent publish successful, msg_id=0
I (4684) MQTTWSS_EXAMPLE: MQTT_EVENT_SUBSCRIBED, msg_id=42970
I (4684) MQTTWSS_EXAMPLE: sent publish successful, msg_id=0
I (4884) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (4884) MQTTWSS_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
I (5194) MQTT_CLIENT: deliver_publish, message_length_read=19, message_length=19
I (5194) MQTTWSS_EXAMPLE: MQTT_EVENT_DATA
TOPIC=/topic/qos0
DATA=data
```

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examples/protocols/mqtt/wss/main/CMakeLists.txt 100644
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set(COMPONENT_SRCS "app_main.c")
set(COMPONENT_ADD_INCLUDEDIRS ".")
register_component()

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examples/protocols/mqtt/wss/main/Kconfig.projbuild 100644
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menu "Example Configuration"
config WIFI_SSID
string "WiFi SSID"
default "myssid"
help
SSID (network name) for the example to connect to.
config WIFI_PASSWORD
string "WiFi Password"
default "mypassword"
help
WiFi password (WPA or WPA2) for the example to use.
endmenu

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examples/protocols/mqtt/wss/main/app_main.c 100644
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#include <stdio.h>
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "esp_wifi.h"
#include "esp_system.h"
#include "nvs_flash.h"
#include "esp_event_loop.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "freertos/queue.h"
#include "freertos/event_groups.h"
#include "lwip/sockets.h"
#include "lwip/dns.h"
#include "lwip/netdb.h"
#include "esp_log.h"
#include "mqtt_client.h"
static const char *TAG = "MQTTWSS_EXAMPLE";
static EventGroupHandle_t wifi_event_group;
const static int CONNECTED_BIT = BIT0;
static esp_err_t wifi_event_handler(void *ctx, system_event_t *event)
{
switch (event->event_id) {
case SYSTEM_EVENT_STA_START:
esp_wifi_connect();
break;
case SYSTEM_EVENT_STA_GOT_IP:
xEventGroupSetBits(wifi_event_group, CONNECTED_BIT);
break;
case SYSTEM_EVENT_STA_DISCONNECTED:
esp_wifi_connect();
xEventGroupClearBits(wifi_event_group, CONNECTED_BIT);
break;
default:
break;
}
return ESP_OK;
}
static void wifi_init(void)
{
tcpip_adapter_init();
wifi_event_group = xEventGroupCreate();
ESP_ERROR_CHECK(esp_event_loop_init(wifi_event_handler, NULL));
wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
ESP_ERROR_CHECK(esp_wifi_init(&cfg));
ESP_ERROR_CHECK(esp_wifi_set_storage(WIFI_STORAGE_RAM));
wifi_config_t wifi_config = {
.sta = {
.ssid = CONFIG_WIFI_SSID,
.password = CONFIG_WIFI_PASSWORD,
},
};
ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
ESP_LOGI(TAG, "start the WIFI SSID:[%s]", CONFIG_WIFI_SSID);
ESP_ERROR_CHECK(esp_wifi_start());
ESP_LOGI(TAG, "Waiting for wifi");
xEventGroupWaitBits(wifi_event_group, CONNECTED_BIT, false, true, portMAX_DELAY);
}
extern const uint8_t iot_eclipse_org_pem_start[] asm("_binary_iot_eclipse_org_pem_start");
extern const uint8_t iot_eclipse_org_pem_end[] asm("_binary_iot_eclipse_org_pem_end");
static esp_err_t mqtt_event_handler(esp_mqtt_event_handle_t event)
{
esp_mqtt_client_handle_t client = event->client;
int msg_id;
// your_context_t *context = event->context;
switch (event->event_id) {
case MQTT_EVENT_CONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_CONNECTED");
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos0", 0);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_subscribe(client, "/topic/qos1", 1);
ESP_LOGI(TAG, "sent subscribe successful, msg_id=%d", msg_id);
msg_id = esp_mqtt_client_unsubscribe(client, "/topic/qos1");
ESP_LOGI(TAG, "sent unsubscribe successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_DISCONNECTED:
ESP_LOGI(TAG, "MQTT_EVENT_DISCONNECTED");
break;
case MQTT_EVENT_SUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_SUBSCRIBED, msg_id=%d", event->msg_id);
msg_id = esp_mqtt_client_publish(client, "/topic/qos0", "data", 0, 0, 0);
ESP_LOGI(TAG, "sent publish successful, msg_id=%d", msg_id);
break;
case MQTT_EVENT_UNSUBSCRIBED:
ESP_LOGI(TAG, "MQTT_EVENT_UNSUBSCRIBED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_PUBLISHED:
ESP_LOGI(TAG, "MQTT_EVENT_PUBLISHED, msg_id=%d", event->msg_id);
break;
case MQTT_EVENT_DATA:
ESP_LOGI(TAG, "MQTT_EVENT_DATA");
printf("TOPIC=%.*s\r\n", event->topic_len, event->topic);
printf("DATA=%.*s\r\n", event->data_len, event->data);
break;
case MQTT_EVENT_ERROR:
ESP_LOGI(TAG, "MQTT_EVENT_ERROR");
break;
}
return ESP_OK;
}
static void mqtt_app_start(void)
{
const esp_mqtt_client_config_t mqtt_cfg = {
.uri = "wss://iot.eclipse.org:443/ws",
.event_handle = mqtt_event_handler,
.cert_pem = (const char *)iot_eclipse_org_pem_start,
};
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
esp_mqtt_client_handle_t client = esp_mqtt_client_init(&mqtt_cfg);
esp_mqtt_client_start(client);
}
void app_main()
{
ESP_LOGI(TAG, "[APP] Startup..");
ESP_LOGI(TAG, "[APP] Free memory: %d bytes", esp_get_free_heap_size());
ESP_LOGI(TAG, "[APP] IDF version: %s", esp_get_idf_version());
esp_log_level_set("*", ESP_LOG_INFO);
esp_log_level_set("MQTT_CLIENT", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_TCP", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT_SSL", ESP_LOG_VERBOSE);
esp_log_level_set("TRANSPORT", ESP_LOG_VERBOSE);
esp_log_level_set("OUTBOX", ESP_LOG_VERBOSE);
nvs_flash_init();
wifi_init();
mqtt_app_start();
}

1
examples/protocols/mqtt/wss/main/component.mk 100644
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@ -0,0 +1 @@
COMPONENT_EMBED_TXTFILES := iot_eclipse_org.pem

27
examples/protocols/mqtt/wss/main/iot_eclipse_org.pem 100644
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@ -0,0 +1,27 @@
-----BEGIN CERTIFICATE-----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a6xK8xuQSXgvopZPKiAlKQTGdMDQMc2PMTiVFrqoM7hD8bEfwzB/onkxEz0tNvjj
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AQH/BAgwBgEB/wIBADAOBgNVHQ8BAf8EBAMCAYYwfwYIKwYBBQUHAQEEczBxMDIG
CCsGAQUFBzABhiZodHRwOi8vaXNyZy50cnVzdGlkLm9jc3AuaWRlbnRydXN0LmNv
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ARYiaHR0cDovL2Nwcy5yb290LXgxLmxldHNlbmNyeXB0Lm9yZzA8BgNVHR8ENTAz
MDGgL6AthitodHRwOi8vY3JsLmlkZW50cnVzdC5jb20vRFNUUk9PVENBWDNDUkwu
Y3JsMB0GA1UdDgQWBBSoSmpjBH3duubRObemRWXv86jsoTANBgkqhkiG9w0BAQsF
AAOCAQEA3TPXEfNjWDjdGBX7CVW+dla5cEilaUcne8IkCJLxWh9KEik3JHRRHGJo
uM2VcGfl96S8TihRzZvoroed6ti6WqEBmtzw3Wodatg+VyOeph4EYpr/1wXKtx8/
wApIvJSwtmVi4MFU5aMqrSDE6ea73Mj2tcMyo5jMd6jmeWUHK8so/joWUoHOUgwu
X4Po1QYz+3dszkDqMp4fklxBwXRsW10KXzPMTZ+sOPAveyxindmjkW8lGy+QsRlG
PfZ+G6Z6h7mjem0Y+iWlkYcV4PIWL1iwBi8saCbGS5jN2p8M+X+Q7UNKEkROb3N6
KOqkqm57TH2H3eDJAkSnh6/DNFu0Qg==
-----END CERTIFICATE-----

132
examples/protocols/mqtt/wss/mqtt_wss_example_test.py 100644
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import re
import os
import sys
import time
import socket
import imp
import ssl
use_mqtt_client_sketch = False
try:
imp.find_module('paho')
import paho.mqtt.client as mqtt
# Make things with supposed existing module
except ImportError:
use_mqtt_client_sketch = True
pass
global g_recv_topic
global g_recv_data
g_recv_data=""
# This is only a workaround for running mqtt client with 'hardcoded' data using plain socket interface
def mqtt_client_sketch():
global g_recv_topic
global g_recv_data
http_connect = bytearray([ 0x47, 0x45, 0x54, 0x20, 0x2f, 0x77, 0x73, 0x20, 0x48, 0x54, 0x54, 0x50, 0x2f, 0x31, 0x2e, 0x31, 0x0d, 0x0a, 0x4f, 0x72, 0x69, 0x67, 0x69, 0x6e, 0x3a, 0x20, 0x68, 0x74, 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x69, 0x6f, 0x74, 0x2e, 0x65, 0x63, 0x6c, 0x69, 0x70, 0x73, 0x65, 0x2e, 0x6f, 0x72, 0x67, 0x3a, 0x38, 0x30, 0x0d, 0x0a, 0x55, 0x70, 0x67, 0x72, 0x61, 0x64, 0x65, 0x3a, 0x20, 0x77, 0x65, 0x62, 0x73, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x0d, 0x0a, 0x53, 0x65, 0x63, 0x2d, 0x57, 0x65, 0x62, 0x73, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x2d, 0x56, 0x65, 0x72, 0x73, 0x69, 0x6f, 0x6e, 0x3a, 0x20, 0x31, 0x33, 0x0d, 0x0a, 0x53, 0x65, 0x63, 0x2d, 0x57, 0x65, 0x62, 0x73, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x2d, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c, 0x3a, 0x20, 0x6d, 0x71, 0x74, 0x74, 0x0d, 0x0a, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x3a, 0x20, 0x55, 0x70, 0x67, 0x72, 0x61, 0x64, 0x65, 0x0d, 0x0a, 0x53, 0x65, 0x63, 0x2d, 0x57, 0x65, 0x62, 0x53, 0x6f, 0x63, 0x6b, 0x65, 0x74, 0x2d, 0x4b, 0x65, 0x79, 0x3a, 0x20, 0x6c, 0x35, 0x61, 0x50, 0x41, 0x64, 0x6d, 0x4a, 0x52, 0x65, 0x32, 0x79, 0x55, 0x42, 0x79, 0x68, 0x37, 0x35, 0x72, 0x58, 0x68, 0x51, 0x3d, 0x3d, 0x0d, 0x0a, 0x48, 0x6f, 0x73, 0x74, 0x3a, 0x20, 0x69, 0x6f, 0x74, 0x2e, 0x65, 0x63, 0x6c, 0x69, 0x70, 0x73, 0x65, 0x2e, 0x6f, 0x72, 0x67, 0x3a, 0x38, 0x30, 0x0d, 0x0a, 0x0d, 0x0a])
connect_msg = bytearray([0x82, 0x8e, 0x82, 0x1a, 0xe6, 0x22, 0x92, 0x16, 0xe6, 0x26, 0xcf, 0x4b, 0xb2, 0x76, 0x86, 0x18, 0xe6, 0x1e, 0x82, 0x1a])
send_qos0_msg = bytearray([ 0x82, 0x9c, 0x44, 0x78, 0xdf, 0x8e, 0x74, 0x62, 0xdf, 0x85, 0x6b, 0x0c, 0xb0, 0xfe, 0x2d, 0x1b, 0xf0, 0xff, 0x2b, 0x0b, 0xef, 0xea, 0x25, 0x0c, 0xbe, 0xd1, 0x30, 0x17, 0x80, 0xeb, 0x37, 0x08, 0xec, 0xbc ])
subscribe_qos0 = bytearray([ 0x82, 0x92, 0x8e, 0x31, 0x8c, 0x4a, 0x0c, 0x21, 0x8c, 0x4b, 0x8e, 0x3a, 0xa3, 0x3e, 0xe1, 0x41, 0xe5, 0x29, 0xa1, 0x40, 0xe3, 0x39, 0xbe, 0x31] )
client = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client.settimeout(30)
cli = ssl.wrap_socket(client)
cli.connect(("iot.eclipse.org", 443))
cli.send(http_connect)
cli.send(connect_msg)
data = cli.recv(1024)
print("Connect ack received {}".format(data))
cli.send(subscribe_qos0)
data = cli.recv(1024)
print("Subscibe ack received {}".format(data))
start = time.time()
while (time.time() - start) <= 20:
data = cli.recv(1024)
print("Data received {}".format(data[-17:]))
if data[-15:] == "/topic/qos0data":
g_recv_topic = data[-15:][:11]
g_recv_data = data[-4:]
cli.send(send_qos0_msg)
data = cli.recv(1024)
print("data ack received {}".format(data))
break
cli.close()
# The callback for when the client receives a CONNACK response from the server.
def on_connect(client, userdata, flags, rc):
print("Connected with result code "+str(rc))
client.subscribe("/topic/qos0")
# The callback for when a PUBLISH message is received from the server.
def on_message(client, userdata, msg):
global g_recv_topic
global g_recv_data
if g_recv_data == "" and msg.payload == "data":
client.publish("/topic/qos0", "data_to_esp32")
g_recv_topic = msg.topic
g_recv_data = msg.payload
print(msg.topic+" "+str(msg.payload))
# this is a test case write with tiny-test-fw.
# to run test cases outside tiny-test-fw,
# we need to set environment variable `TEST_FW_PATH`,
# then get and insert `TEST_FW_PATH` to sys path before import FW module
test_fw_path = os.getenv("TEST_FW_PATH")
if test_fw_path and test_fw_path not in sys.path:
sys.path.insert(0, test_fw_path)
import TinyFW
import IDF
@IDF.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_mqtt_wss(env, extra_data):
global g_recv_topic
global g_recv_data
"""
steps: |
1. join AP and connects to wss broker
2. Test connects a client to the same broker
3. Test evaluates it received correct qos0 message
4. Test ESP32 client received correct qos0 message
"""
dut1 = env.get_dut("mqtt_websocket_secure", "examples/protocols/mqtt/wss")
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, "mqtt_websocket_secure.bin")
bin_size = os.path.getsize(binary_file)
IDF.log_performance("mqtt_websocket_secure_bin_size", "{}KB".format(bin_size//1024))
IDF.check_performance("mqtt_websocket_secure_size", bin_size//1024)
# 1. start test
dut1.start_app()
# 2. Test connects to a broker
if use_mqtt_client_sketch:
mqtt_client_sketch()
else:
client = mqtt.Client(transport="websockets")
client.on_connect = on_connect
client.on_message = on_message
client.tls_set(None,
None,
None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1, ciphers=None)
print "Connecting..."
client.connect("iot.eclipse.org", 443, 60)
print "...done"
print "Start Looping..."
start = time.time()
while (time.time() - start) <= 20:
client.loop()
print "...done"
# 3. check the message received back from the server
if g_recv_topic == "/topic/qos0" and g_recv_data == "data" :
print("PASS: Received correct message")
else:
print("Failure!")
raise ValueError('Wrong data received topic: {}, data:{}'.format(g_recv_topic, g_recv_data))
# 4. check that the esp32 client received data sent by this python client
dut1.expect(re.compile(r"DATA=data_to_esp32"), timeout=30)
if __name__ == '__main__':
test_examples_protocol_mqtt_wss()

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tools/ci/mirror-list.txt
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@ -14,3 +14,4 @@ components/asio/asio @GENERAL_MIRROR_SERVER@/idf/
components/lwip/lwip @GENERAL_MIRROR_SERVER@/idf/esp-lwip.git
third-party/mruby @GENERAL_MIRROR_SERVER@/idf/mruby.git ALLOW_TO_SYNC_FROM_PUBLIC
third-party/neverbleed @GENERAL_MIRROR_SERVER@/idf/neverbleed.git ALLOW_TO_SYNC_FROM_PUBLIC
components/mqtt/esp-mqtt @GENERAL_MIRROR_SERVER@/idf/esp-mqtt.git ALLOW_TO_SYNC_FROM_PUBLIC