yh Tang
NuMaker connection with AWS IoT thru MQTT/HTTPS
main.cpp
- Committer:
- doudoutang
- Date:
- 2020-12-01
- Revision:
- 40:599eaf9deec3
- Parent:
- 39:a26be070a2b1
File content as of revision 40:599eaf9deec3:
/* This example demonstrates connection with AWS IoT through MQTT/HTTPS protocol.
*
* AWS IoT: Thing Shadow MQTT Topics
* http://docs.aws.amazon.com/iot/latest/developerguide/thing-shadow-mqtt.html
*
* AWS IoT: Publish to a topic through HTTPS/POST method:
* http://docs.aws.amazon.com/iot/latest/developerguide/protocols.html
*
* AWS IoT: Thing Shadow RESTful API:
* http://docs.aws.amazon.com/iot/latest/developerguide/thing-shadow-rest-api.html
*/
#define AWS_IOT_MQTT_TEST 1
#define AWS_IOT_HTTPS_TEST 0
#include "mbed.h"
/* MyTLSSocket = Mbed TLS over TCPSocket */
#include "MyTLSSocket.h"
#if AWS_IOT_MQTT_TEST
/* MQTT-specific header files */
#include "MQTTmbed.h"
#include "MQTTClient.h"
#endif // End of AWS_IOT_MQTT_TEST
namespace {
/* List of trusted root CA certificates
* currently only GlobalSign, the CA for os.mbed.com
*
* To add more than one root, just concatenate them.
*/
const char SSL_CA_CERT_PEM[] = "-----BEGIN CERTIFICATE-----\n"
"MIIDQTCCAimgAwIBAgITBmyfz5m/jAo54vB4ikPmljZbyjANBgkqhkiG9w0BAQsF\n"
"ADA5MQswCQYDVQQGEwJVUzEPMA0GA1UEChMGQW1hem9uMRkwFwYDVQQDExBBbWF6\n"
"b24gUm9vdCBDQSAxMB4XDTE1MDUyNjAwMDAwMFoXDTM4MDExNzAwMDAwMFowOTEL\n"
"MAkGA1UEBhMCVVMxDzANBgNVBAoTBkFtYXpvbjEZMBcGA1UEAxMQQW1hem9uIFJv\n"
"b3QgQ0EgMTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALJ4gHHKeNXj\n"
"ca9HgFB0fW7Y14h29Jlo91ghYPl0hAEvrAIthtOgQ3pOsqTQNroBvo3bSMgHFzZM\n"
"9O6II8c+6zf1tRn4SWiw3te5djgdYZ6k/oI2peVKVuRF4fn9tBb6dNqcmzU5L/qw\n"
"IFAGbHrQgLKm+a/sRxmPUDgH3KKHOVj4utWp+UhnMJbulHheb4mjUcAwhmahRWa6\n"
"VOujw5H5SNz/0egwLX0tdHA114gk957EWW67c4cX8jJGKLhD+rcdqsq08p8kDi1L\n"
"93FcXmn/6pUCyziKrlA4b9v7LWIbxcceVOF34GfID5yHI9Y/QCB/IIDEgEw+OyQm\n"
"jgSubJrIqg0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMC\n"
"AYYwHQYDVR0OBBYEFIQYzIU07LwMlJQuCFmcx7IQTgoIMA0GCSqGSIb3DQEBCwUA\n"
"A4IBAQCY8jdaQZChGsV2USggNiMOruYou6r4lK5IpDB/G/wkjUu0yKGX9rbxenDI\n"
"U5PMCCjjmCXPI6T53iHTfIUJrU6adTrCC2qJeHZERxhlbI1Bjjt/msv0tadQ1wUs\n"
"N+gDS63pYaACbvXy8MWy7Vu33PqUXHeeE6V/Uq2V8viTO96LXFvKWlJbYK8U90vv\n"
"o/ufQJVtMVT8QtPHRh8jrdkPSHCa2XV4cdFyQzR1bldZwgJcJmApzyMZFo6IQ6XU\n"
"5MsI+yMRQ+hDKXJioaldXgjUkK642M4UwtBV8ob2xJNDd2ZhwLnoQdeXeGADbkpy\n"
"rqXRfboQnoZsG4q5WTP468SQvvG5\n"
"-----END CERTIFICATE-----\n";
/* User certificate which has been activated and attached with specific thing and policy */
const char SSL_USER_CERT_PEM[] = "-----BEGIN CERTIFICATE-----\n"
"MIIDWjCCAkKgAwIBAgIVAP0S4tR63yXVgM2daSOyFdhUMmPMMA0GCSqGSIb3DQEB\n"
"CwUAME0xSzBJBgNVBAsMQkFtYXpvbiBXZWIgU2VydmljZXMgTz1BbWF6b24uY29t\n"
"IEluYy4gTD1TZWF0dGxlIFNUPVdhc2hpbmd0b24gQz1VUzAeFw0yMDA5MTQwMzAy\n"
"MTVaFw00OTEyMzEyMzU5NTlaMB4xHDAaBgNVBAMME0FXUyBJb1QgQ2VydGlmaWNh\n"
"dGUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDhepRd6MQM4QRLLjIe\n"
"2VPkNW391X+UreNmY5doyFoYsbTCcY3HhY7CLdT4NCQfJQ8/qbx6om9KQQnbeMdI\n"
"tG0CeRco3jxRM94p+iwrxzxJOOgtEUzm8wOCfNc9S7MBFDUtteboIekBjk5ZaPnS\n"
"gxsOLFgOdopPO/FxrmE23S5XCt8K77eOZRcGi/+RLyYGIVGQqN87a6qTveRARh9K\n"
"BHWfIffVZv7/WXHwRSIci35buJHQcTP5kWmT6VOdswYNQzgmi0UxLkSJFAhYzu/J\n"
"pgrm54Jwf/xKkGwQ4vgeH2EJ+ksBa8Eg5KiLQH9OjZ9BKoeyAPyLQhF642VQmSU3\n"
"20obAgMBAAGjYDBeMB8GA1UdIwQYMBaAFN50owFGEDexb9nOdsgXxQ+BchtzMB0G\n"
"A1UdDgQWBBReXbnLWekyRBvkd4YfTePGd7sXIzAMBgNVHRMBAf8EAjAAMA4GA1Ud\n"
"DwEB/wQEAwIHgDANBgkqhkiG9w0BAQsFAAOCAQEAf9+gOAOTo22Oo+mpcf6SAADw\n"
"tN+fInVMgLLW13ViB7dELAYx4YcrPRRrxK6KOQbNeFj62jOon7Zj7GQyFUAG6ePw\n"
"TUEyuAvYNltYfF2OjsLu7XFrtM8RhmKUOKpP3WJ8AiZvnzknYcdPvAbka8TRK9zC\n"
"13xouOMkrWD6BY+FPe+xrsCHeJAVpaCRJBLWnkMaR1fyMsL8xGBkFz02BPTO70cN\n"
"rmVh/dbJz9JifedlcK0ZjfpU3EfiLZ/ydZWqEc2M6VGO0sLOfIahHhqKPq6hbiUu\n"
"WiwB/ZhYjJI0vQm3/mzTXTEwSwBcRvQusoctZS6Ilb9W9KNttXtQZ5Pd+iWDAw==\n"
"-----END CERTIFICATE-----\n";
/* User private key paired with above */
const char SSL_USER_PRIV_KEY_PEM[] = "-----BEGIN RSA PRIVATE KEY-----\n"
"MIIEowIBAAKCAQEA4XqUXejEDOEESy4yHtlT5DVt/dV/lK3jZmOXaMhaGLG0wnGN\n"
"x4WOwi3U+DQkHyUPP6m8eqJvSkEJ23jHSLRtAnkXKN48UTPeKfosK8c8STjoLRFM\n"
"5vMDgnzXPUuzARQ1LbXm6CHpAY5OWWj50oMbDixYDnaKTzvxca5hNt0uVwrfCu+3\n"
"jmUXBov/kS8mBiFRkKjfO2uqk73kQEYfSgR1nyH31Wb+/1lx8EUiHIt+W7iR0HEz\n"
"+ZFpk+lTnbMGDUM4JotFMS5EiRQIWM7vyaYK5ueCcH/8SpBsEOL4Hh9hCfpLAWvB\n"
"IOSoi0B/To2fQSqHsgD8i0IReuNlUJklN9tKGwIDAQABAoIBAFvNZ7jwe1nvB6uA\n"
"bIGo5IImytitY1tqjQp0BAJyiFRDjiAY0avpkd03gd1ohUh080dtWULo/bzSzCui\n"
"eij85OE74hUOnqpFHvAiXneYj9AULlujDpd9W/F12MCpIIGQ87HfvNrIa7Dperbm\n"
"iciO/qX/of6JfviRpFUvtX78ANEI5TlHF/hi3ZHQdCVVAezOfsSwRs3jqlIQAz43\n"
"WRQzkqSE2cfO0Mm3K3D1gTKTPpsPACj665Tzua2QdZgKwFdoiiVla9uUsvtZmeBO\n"
"BaodrhxZssAtak/hd/TCLVCZq90GMG45AYP6qIvGPQtRKrkMHIbsPXU+MMIWcj9S\n"
"PJb9CFECgYEA+98lfB/T0fn3Z/KxAMqnzqj7uMEuxq4azmyyv8t6K/nGReSooKX1\n"
"I7n8LskmKcWZkNTUnZ4zPmz23xHHAGp6h1lbXGDQOHbDXDW+bKGI2ZNnCoCYydzI\n"
"syJ8jE7OmXgknI1TWG2tt3m3W/JBw2hiE/2HjMIniYkTwNo2an6YobkCgYEA5Syw\n"
"U11Y+z6fh6qIKziI6fuEPu5rDh0gUvLMg0ZtcIyZwbAI/tqRSADf/7YE6GGHp4l6\n"
"rSJz2tZCWoXCXFOsBKBAnrV6swwVPBGkfg0hzibEKeZTmxuDPbipgKaAlSfMyIk1\n"
"NBYF1+/1VTJZSkhftRkjXTdfTTxHWs0N6JnBxHMCgYEAgRy7f2xlTd8AVzXOTGSW\n"
"Ltbq6qOE0e4P6b9Ixg6NWxuX6t4zHt7T0fOV9XnBaWpUtSyUrROamyaKSoE3bNwo\n"
"YVeKAMnUEw22SX93VQJdP4NTL8wKBnh6HXHRPK9tMrims+WyUsMuaL4pIyYFViEd\n"
"Hbg6Ewq378Xn7VUuzdqFbWkCgYA76z5C3aI5Nnthbj3iBwsNGjzOc2m8K/NanK7K\n"
"F+zfQ3OkB5GiiKT5jXkDk6Se2XktXa2cfOiLq/93SYeyuhG8t+WNWWe2To9ywC4g\n"
"4vAWxV3+koEDieL7jT+MKnxuAxTwzacCckue1NdxKhPcbyXO5L6xTZv2Rq9lVz2u\n"
"thzKbwKBgC07iLwQJkcZWo2xNDgO2C2dhWSZaX0VFjA1TZAwbi3+pV0pg9aczgZS\n"
"8WPCQwB4BBz/4FesMjpy0KoZZsBuvfGDwxTjsvZOm67nqdkM+LIfFt493NNoxxl4\n"
"kTyDhNIrvXLFMy7UO3q9jUUQ0hWz8EIKKjWI3oApFhB0VtWTB8Kl\n"
"-----END RSA PRIVATE KEY-----\n";
#if AWS_IOT_MQTT_TEST
#define AWS_IOT_MQTT_SERVER_NAME "a13s4t1vh7t3tu-ats.iot.ap-northeast-1.amazonaws.com"
// "a1fljoeglhtf61.iot.us-east-2.amazonaws.com"
#define AWS_IOT_MQTT_SERVER_PORT 8883
#define AWS_IOT_MQTT_THINGNAME "M487_TYH_TEST"
#define AWS_IOT_MQTT_CLIENTNAME "TYH_IOT"
/* User self-test topic */
const char USER_MQTT_TOPIC[] = "Nuvoton/Mbed/D001";
const char *USER_MQTT_TOPIC_FILTERS[] = {
"Nuvoton/Mbed/+"
};
const char USER_MQTT_TOPIC_PUBLISH_MESSAGE[] = "{ \"message\": \"Hello from Nuvoton Mbed device\" }";
/* Update thing shadow */
const char UPDATETHINGSHADOW_MQTT_TOPIC[] = "$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/update";
const char *UPDATETHINGSHADOW_MQTT_TOPIC_FILTERS[] = {
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/update/accepted",
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/update/rejected"
};
const char UPDATETHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE[] = "{ \"state\": { \"reported\": { \"attribute1\": 3, \"attribute2\": \"1\" } } }";
/* Get thing shadow */
const char GETTHINGSHADOW_MQTT_TOPIC[] = "$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/get";
const char *GETTHINGSHADOW_MQTT_TOPIC_FILTERS[] = {
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/get/accepted",
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/get/rejected"
};
const char GETTHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE[] = "";
/* Delete thing shadow */
const char DELETETHINGSHADOW_MQTT_TOPIC[] = "$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/delete";
const char *DELETETHINGSHADOW_MQTT_TOPIC_FILTERS[] = {
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/delete/accepted",
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/delete/rejected"
};
const char DELETETHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE[] = "";
/* MQTT user buffer size */
const int MQTT_USER_BUFFER_SIZE = 600;
/* Configure MAX_MQTT_PACKET_SIZE to meet your application.
* We may meet unknown MQTT error with MAX_MQTT_PACKET_SIZE too small, but
* MQTT lib doesn't tell enough error message. Try to enlarge it. */
const int MAX_MQTT_PACKET_SIZE = 1000;
/* Timeout for receiving message with subscribed topic */
const int MQTT_RECEIVE_MESSAGE_WITH_SUBSCRIBED_TOPIC_TIMEOUT_MS = 5000;
#endif // End of AWS_IOT_MQTT_TEST
#if AWS_IOT_HTTPS_TEST
#define AWS_IOT_HTTPS_SERVER_NAME "a1fljoeglhtf61.iot.us-east-2.amazonaws.com"
#define AWS_IOT_HTTPS_SERVER_PORT 8443
#define AWS_IOT_HTTPS_THINGNAME "Nuvoton-Mbed-D001"
/* Publish to user topic through HTTPS/POST
* HTTP POST https://"endpoint"/topics/"yourTopicHierarchy" */
const char USER_TOPIC_HTTPS_PATH[] = "/topics/Nuvoton/Mbed/D001?qos=1";
const char USER_TOPIC_HTTPS_REQUEST_METHOD[] = "POST";
const char USER_TOPIC_HTTPS_REQUEST_MESSAGE_BODY[] = "{ \"message\": \"Hello from Nuvoton Mbed device\" }";
/* Update thing shadow by publishing to UpdateThingShadow topic through HTTPS/POST
* HTTP POST https://"endpoint"/topics/$aws/things/"thingName"/shadow/update */
const char UPDATETHINGSHADOW_TOPIC_HTTPS_PATH[] = "/topics/$aws/things/" AWS_IOT_HTTPS_THINGNAME "/shadow/update?qos=1";
const char UPDATETHINGSHADOW_TOPIC_HTTPS_REQUEST_METHOD[] = "POST";
const char UPDATETHINGSHADOW_TOPIC_HTTPS_REQUEST_MESSAGE_BODY[] = "{ \"state\": { \"reported\": { \"attribute1\": 3, \"attribute2\": \"1\" } } }";
/* Get thing shadow by publishing to GetThingShadow topic through HTTPS/POST
* HTTP POST https://"endpoint"/topics/$aws/things/"thingName"/shadow/get */
const char GETTHINGSHADOW_TOPIC_HTTPS_PATH[] = "/topics/$aws/things/" AWS_IOT_HTTPS_THINGNAME "/shadow/get?qos=1";
const char GETTHINGSHADOW_TOPIC_HTTPS_REQUEST_METHOD[] = "POST";
const char GETTHINGSHADOW_TOPIC_HTTPS_REQUEST_MESSAGE_BODY[] = "";
/* Delete thing shadow by publishing to DeleteThingShadow topic through HTTPS/POST
* HTTP POST https://"endpoint"/topics/$aws/things/"thingName"/shadow/delete */
const char DELETETHINGSHADOW_TOPIC_HTTPS_PATH[] = "/topics/$aws/things/" AWS_IOT_HTTPS_THINGNAME "/shadow/delete?qos=1";
const char DELETETHINGSHADOW_TOPIC_HTTPS_REQUEST_METHOD[] = "POST";
const char DELETETHINGSHADOW_TOPIC_HTTPS_REQUEST_MESSAGE_BODY[] = "";
/* Update thing shadow RESTfully through HTTPS/POST
* HTTP POST https://endpoint/things/thingName/shadow */
const char UPDATETHINGSHADOW_THING_HTTPS_PATH[] = "/things/" AWS_IOT_HTTPS_THINGNAME "/shadow";
const char UPDATETHINGSHADOW_THING_HTTPS_REQUEST_METHOD[] = "POST";
const char UPDATETHINGSHADOW_THING_HTTPS_REQUEST_MESSAGE_BODY[] = "{ \"state\": { \"desired\": { \"attribute1\": 1, \"attribute2\": \"2\" }, \"reported\": { \"attribute1\": 2, \"attribute2\": \"1\" } } }";
/* Get thing shadow RESTfully through HTTPS/GET
* HTTP GET https://"endpoint"/things/"thingName"/shadow */
const char GETTHINGSHADOW_THING_HTTPS_PATH[] = "/things/" AWS_IOT_HTTPS_THINGNAME "/shadow";
const char GETTHINGSHADOW_THING_HTTPS_REQUEST_METHOD[] = "GET";
const char GETTHINGSHADOW_THING_HTTPS_REQUEST_MESSAGE_BODY[] = "";
/* Delete thing shadow RESTfully through HTTPS/DELETE
* HTTP DELETE https://endpoint/things/thingName/shadow */
const char DELETETHINGSHADOW_THING_HTTPS_PATH[] = "/things/" AWS_IOT_HTTPS_THINGNAME "/shadow";
const char DELETETHINGSHADOW_THING_HTTPS_REQUEST_METHOD[] = "DELETE";
const char DELETETHINGSHADOW_THING_HTTPS_REQUEST_MESSAGE_BODY[] = "";
/* HTTPS user buffer size */
const int HTTPS_USER_BUFFER_SIZE = 600;
const char *HTTPS_OK_STR = "200 OK";
#endif // End of AWS_IOT_HTTPS_TEST
}
#if AWS_IOT_MQTT_TEST
/**
* /brief AWS_IoT_MQTT_Test implements the logic with AWS IoT User/Thing Shadow topics through MQTT.
*/
class AWS_IoT_MQTT_Test {
public:
/**
* @brief AWS_IoT_MQTT_Test Constructor
*
* @param[in] domain Domain name of the MQTT server
* @param[in] port Port number of the MQTT server
* @param[in] net_iface Network interface
*/
AWS_IoT_MQTT_Test(const char * domain, const uint16_t port, NetworkInterface *net_iface) :
_domain(domain), _port(port) {
_tlssocket = new MyTLSSocket(net_iface, SSL_CA_CERT_PEM, SSL_USER_CERT_PEM, SSL_USER_PRIV_KEY_PEM);
/* Blocking mode */
_tlssocket->set_blocking(true);
/* Print Mbed TLS handshake log */
_tlssocket->set_debug(true);
_mqtt_client = new MQTT::Client<MyTLSSocket, Countdown, MAX_MQTT_PACKET_SIZE>(*_tlssocket);
}
/**
* @brief AWS_IoT_MQTT_Test Destructor
*/
~AWS_IoT_MQTT_Test() {
delete _mqtt_client;
_mqtt_client = NULL;
_tlssocket->close();
delete _tlssocket;
_tlssocket = NULL;
}
/**
* @brief Start AWS IoT test through MQTT
*/
void start_test() {
int tls_rc;
int mqtt_rc;
do {
/* Connect to the server */
/* Initialize TLS-related stuff */
printf("Connecting with %s:%d\n", _domain, _port);
tls_rc = _tlssocket->connect(_domain, _port);
if (tls_rc != NSAPI_ERROR_OK) {
printf("Connects with %s:%d failed: %d\n", _domain, _port, tls_rc);
break;
}
printf("Connects with %s:%d OK\n", _domain, _port);
/* See the link below for AWS IoT support for MQTT:
* http://docs.aws.amazon.com/iot/latest/developerguide/protocols.html */
/* MQTT connect */
/* The message broker does not support persistent sessions (connections made with
* the cleanSession flag set to false. */
MQTTPacket_connectData conn_data = MQTTPacket_connectData_initializer;
/* AWS IoT message broker implementation is based on MQTT version 3.1.1
* 3 = 3.1
* 4 = 3.1.1 */
conn_data.MQTTVersion = 4;
/* Version number of this structure. Must be 0 */
conn_data.struct_version = 0;
/* The message broker uses the client ID to identify each client. The client ID is passed
* in from the client to the message broker as part of the MQTT payload. Two clients with
* the same client ID are not allowed to be connected concurrently to the message broker.
* When a client connects to the message broker using a client ID that another client is using,
* a CONNACK message will be sent to both clients and the currently connected client will be
* disconnected. */
conn_data.clientID.cstring = AWS_IOT_MQTT_CLIENTNAME;
/* The message broker does not support persistent sessions (connections made with
* the cleanSession flag set to false. The AWS IoT message broker assumes all sessions
* are clean sessions and messages are not stored across sessions. If an MQTT client
* attempts to connect to the AWS IoT message broker with the cleanSession set to false,
* the client will be disconnected. */
conn_data.cleansession = 1;
//conn_data.username.cstring = "USERNAME";
//conn_data.password.cstring = "PASSWORD";
MQTT::connackData connack_data;
/* _tlssocket must connect to the network endpoint before calling this. */
printf("MQTT connecting");
if ((mqtt_rc = _mqtt_client->connect(conn_data, connack_data)) != 0) {
printf("\rMQTT connects failed: %d\n", mqtt_rc);
break;
}
printf("\rMQTT connects OK\n\n");
/* Subscribe/publish user topic */
printf("Subscribing/publishing user topic\n");
if (! sub_pub_topic(USER_MQTT_TOPIC, USER_MQTT_TOPIC_FILTERS, sizeof (USER_MQTT_TOPIC_FILTERS) / sizeof (USER_MQTT_TOPIC_FILTERS[0]), USER_MQTT_TOPIC_PUBLISH_MESSAGE)) {
break;
}
printf("Subscribes/publishes user topic OK\n\n");
/* Subscribe/publish UpdateThingShadow topic */
printf("Subscribing/publishing UpdateThingShadow topic\n");
if (! sub_pub_topic(UPDATETHINGSHADOW_MQTT_TOPIC, UPDATETHINGSHADOW_MQTT_TOPIC_FILTERS, sizeof (UPDATETHINGSHADOW_MQTT_TOPIC_FILTERS) / sizeof (UPDATETHINGSHADOW_MQTT_TOPIC_FILTERS[0]), UPDATETHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE)) {
break;
}
printf("Subscribes/publishes UpdateThingShadow topic OK\n\n");
/* Subscribe/publish GetThingShadow topic */
printf("Subscribing/publishing GetThingShadow topic\n");
if (! sub_pub_topic(GETTHINGSHADOW_MQTT_TOPIC, GETTHINGSHADOW_MQTT_TOPIC_FILTERS, sizeof (GETTHINGSHADOW_MQTT_TOPIC_FILTERS) / sizeof (GETTHINGSHADOW_MQTT_TOPIC_FILTERS[0]), GETTHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE)) {
break;
}
printf("Subscribes/publishes GetThingShadow topic OK\n\n");
/* Subscribe/publish DeleteThingShadow topic */
printf("Subscribing/publishing DeleteThingShadow topic\n");
if (! sub_pub_topic(DELETETHINGSHADOW_MQTT_TOPIC, DELETETHINGSHADOW_MQTT_TOPIC_FILTERS, sizeof (DELETETHINGSHADOW_MQTT_TOPIC_FILTERS) / sizeof (DELETETHINGSHADOW_MQTT_TOPIC_FILTERS[0]), DELETETHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE)) {
break;
}
printf("Subscribes/publishes DeleteThingShadow topic OK\n\n");
} while (0);
printf("MQTT disconnecting");
if ((mqtt_rc = _mqtt_client->disconnect()) != 0) {
printf("\rMQTT disconnects failed %d\n\n", mqtt_rc);
}
printf("\rMQTT disconnects OK\n\n");
_tlssocket->close();
}
protected:
/**
* @brief Subscribe/publish specific topic
*/
bool sub_pub_topic(const char *topic, const char **topic_filters, size_t topic_filters_size, const char *publish_message_body) {
bool ret = false;
int mqtt_rc;
do {
const char **topic_filter;
const char **topic_filter_end = topic_filters + topic_filters_size;
for (topic_filter = topic_filters; topic_filter != topic_filter_end; topic_filter ++) {
/* AWS IoT does not support publishing and subscribing with QoS 2.
* The AWS IoT message broker does not send a PUBACK or SUBACK when QoS 2 is requested. */
printf("MQTT subscribing to %s", *topic_filter);
if ((mqtt_rc = _mqtt_client->subscribe(*topic_filter, MQTT::QOS1, message_arrived)) != 0) {
printf("\rMQTT subscribes to %s failed: %d\n", *topic_filter, mqtt_rc);
continue;
}
printf("\rMQTT subscribes to %s OK\n", *topic_filter);
}
/* Clear count of received message with subscribed topic */
clear_message_arrive_count();
MQTT::Message message;
int _bpos;
_bpos = snprintf(_buffer, sizeof (_buffer) - 1, publish_message_body);
if (_bpos < 0 || ((size_t) _bpos) > (sizeof (_buffer) - 1)) {
printf("snprintf failed: %d\n", _bpos);
break;
}
_buffer[_bpos] = 0;
/* AWS IoT does not support publishing and subscribing with QoS 2.
* The AWS IoT message broker does not send a PUBACK or SUBACK when QoS 2 is requested. */
message.qos = MQTT::QOS1;
message.retained = false;
message.dup = false;
message.payload = _buffer;
message.payloadlen = strlen(_buffer);
/* Print publish message */
printf("Message to publish:\n");
printf("%s\n", _buffer);
printf("MQTT publishing message to %s", topic);
if ((mqtt_rc = _mqtt_client->publish(topic, message)) != 0) {
printf("\rMQTT publishes message to %s failed: %d\n", topic, mqtt_rc);
break;
}
printf("\rMQTT publishes message to %s OK\n", topic);
/* Receive message with subscribed topic */
printf("MQTT receives message with subscribed %s...\n", topic);
Timer timer;
timer.start();
while (! _message_arrive_count) {
if (timer.read_ms() >= MQTT_RECEIVE_MESSAGE_WITH_SUBSCRIBED_TOPIC_TIMEOUT_MS) {
printf("MQTT receives message with subscribed %s TIMEOUT\n", topic);
break;
}
_mqtt_client->yield(100);
}
if (_message_arrive_count) {
printf("MQTT receives message with subscribed %s OK\n", topic);
}
printf("\n");
/* Unsubscribe
* We meet second unsubscribe failed. This is caused by MQTT lib bug. */
for (topic_filter = topic_filters; topic_filter != topic_filter_end; topic_filter ++) {
printf("MQTT unsubscribing from %s", *topic_filter);
if ((mqtt_rc = _mqtt_client->unsubscribe(*topic_filter)) != 0) {
printf("\rMQTT unsubscribes from %s failed: %d\n", *topic_filter, mqtt_rc);
continue;
}
printf("\rMQTT unsubscribes from %s OK\n", *topic_filter);
}
ret = true;
} while (0);
return ret;
}
protected:
MyTLSSocket * _tlssocket;
MQTT::Client<MyTLSSocket, Countdown, MAX_MQTT_PACKET_SIZE> * _mqtt_client;
const char *_domain; /**< Domain name of the MQTT server */
const uint16_t _port; /**< Port number of the MQTT server */
char _buffer[MQTT_USER_BUFFER_SIZE]; /**< User buffer */
private:
static volatile uint16_t _message_arrive_count;
static void message_arrived(MQTT::MessageData& md) {
MQTT::Message &message = md.message;
printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id);
printf("Payload:\n");
printf("%.*s\n", message.payloadlen, (char*)message.payload);
++ _message_arrive_count;
}
static void clear_message_arrive_count() {
_message_arrive_count = 0;
}
};
volatile uint16_t AWS_IoT_MQTT_Test::_message_arrive_count = 0;
#endif // End of AWS_IOT_MQTT_TEST
#if AWS_IOT_HTTPS_TEST
/**
* /brief AWS_IoT_HTTPS_Test implements the logic with AWS IoT User/Thing Shadow topics (publish-only)
* and Thing Shadow RESTful API through HTTPS.
*/
class AWS_IoT_HTTPS_Test {
public:
/**
* @brief AWS_IoT_HTTPS_Test Constructor
*
* @param[in] domain Domain name of the HTTPS server
* @param[in] port Port number of the HTTPS server
* @param[in] net_iface Network interface
*/
AWS_IoT_HTTPS_Test(const char * domain, const uint16_t port, NetworkInterface *net_iface) :
_domain(domain), _port(port) {
_tlssocket = new MyTLSSocket(net_iface, SSL_CA_CERT_PEM, SSL_USER_CERT_PEM, SSL_USER_PRIV_KEY_PEM);
/* Non-blocking mode */
_tlssocket->set_blocking(false);
/* Print Mbed TLS handshake log */
_tlssocket->set_debug(true);
}
/**
* @brief AWS_IoT_HTTPS_Test Destructor
*/
~AWS_IoT_HTTPS_Test() {
_tlssocket->close();
delete _tlssocket;
_tlssocket = NULL;
}
/**
* @brief Start AWS IoT test through HTTPS
*
* @param[in] path The path of the file to fetch from the HTTPS server
*/
void start_test() {
int tls_rc;
do {
/* Connect to the server */
/* Initialize TLS-related stuff */
printf("Connecting with %s:%d\n", _domain, _port);
tls_rc = _tlssocket->connect(_domain, _port);
if (tls_rc != NSAPI_ERROR_OK) {
printf("Connects with %s:%d failed: %d\n", _domain, _port, tls_rc);
break;
}
printf("Connects with %s:%d OK\n\n", _domain, _port);
/* Publish to user topic through HTTPS/POST */
printf("Publishing to user topic through HTTPS/POST\n");
if (! run_req_resp(USER_TOPIC_HTTPS_PATH, USER_TOPIC_HTTPS_REQUEST_METHOD, USER_TOPIC_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Publishes to user topic through HTTPS/POST OK\n\n");
/* Update thing shadow by publishing to UpdateThingShadow topic through HTTPS/POST */
printf("Updating thing shadow by publishing to Update Thing Shadow topic through HTTPS/POST\n");
if (! run_req_resp(UPDATETHINGSHADOW_TOPIC_HTTPS_PATH, UPDATETHINGSHADOW_TOPIC_HTTPS_REQUEST_METHOD, UPDATETHINGSHADOW_TOPIC_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Update thing shadow by publishing to Update Thing Shadow topic through HTTPS/POST OK\n\n");
/* Get thing shadow by publishing to GetThingShadow topic through HTTPS/POST */
printf("Getting thing shadow by publishing to GetThingShadow topic through HTTPS/POST\n");
if (! run_req_resp(GETTHINGSHADOW_TOPIC_HTTPS_PATH, GETTHINGSHADOW_TOPIC_HTTPS_REQUEST_METHOD, GETTHINGSHADOW_TOPIC_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Get thing shadow by publishing to GetThingShadow topic through HTTPS/POST OK\n\n");
/* Delete thing shadow by publishing to DeleteThingShadow topic through HTTPS/POST */
printf("Deleting thing shadow by publishing to DeleteThingShadow topic through HTTPS/POST\n");
if (! run_req_resp(DELETETHINGSHADOW_TOPIC_HTTPS_PATH, DELETETHINGSHADOW_TOPIC_HTTPS_REQUEST_METHOD, DELETETHINGSHADOW_TOPIC_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Delete thing shadow by publishing to DeleteThingShadow topic through HTTPS/POST OK\n\n");
/* Update thing shadow RESTfully through HTTPS/POST */
printf("Updating thing shadow RESTfully through HTTPS/POST\n");
if (! run_req_resp(UPDATETHINGSHADOW_THING_HTTPS_PATH, UPDATETHINGSHADOW_THING_HTTPS_REQUEST_METHOD, UPDATETHINGSHADOW_THING_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Update thing shadow RESTfully through HTTPS/POST OK\n\n");
/* Get thing shadow RESTfully through HTTPS/GET */
printf("Getting thing shadow RESTfully through HTTPS/GET\n");
if (! run_req_resp(GETTHINGSHADOW_THING_HTTPS_PATH, GETTHINGSHADOW_THING_HTTPS_REQUEST_METHOD, GETTHINGSHADOW_THING_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Get thing shadow RESTfully through HTTPS/GET OK\n\n");
/* Delete thing shadow RESTfully through HTTPS/DELETE */
printf("Deleting thing shadow RESTfully through HTTPS/DELETE\n");
if (! run_req_resp(DELETETHINGSHADOW_THING_HTTPS_PATH, DELETETHINGSHADOW_THING_HTTPS_REQUEST_METHOD, DELETETHINGSHADOW_THING_HTTPS_REQUEST_MESSAGE_BODY)) {
break;
}
printf("Delete thing shadow RESTfully through HTTPS/DELETE OK\n\n");
} while (0);
/* Close socket */
_tlssocket->close();
}
protected:
/**
* @brief Run request/response through HTTPS
*/
bool run_req_resp(const char *https_path, const char *https_request_method, const char *https_request_message_body) {
bool ret = false;
do {
int tls_rc;
bool _got200 = false;
int _bpos;
/* Fill the request buffer */
_bpos = snprintf(_buffer, sizeof(_buffer) - 1,
"%s %s HTTP/1.1\r\n" "Host: %s\r\n" "Content-Length: %d\r\n" "\r\n" "%s",
https_request_method, https_path, AWS_IOT_HTTPS_SERVER_NAME, strlen(https_request_message_body), https_request_message_body);
if (_bpos < 0 || ((size_t) _bpos) > (sizeof (_buffer) - 1)) {
printf("snprintf failed: %d\n", _bpos);
break;
}
_buffer[_bpos] = 0;
/* Print request message */
printf("HTTPS: Request message:\n");
printf("%s\n", _buffer);
int offset = 0;
do {
tls_rc = _tlssocket->send((const unsigned char *) _buffer + offset, _bpos - offset);
if (tls_rc > 0) {
offset += tls_rc;
}
} while (offset < _bpos &&
(tls_rc > 0 || tls_rc == MBEDTLS_ERR_SSL_WANT_READ || tls_rc == MBEDTLS_ERR_SSL_WANT_WRITE));
if (tls_rc < 0) {
print_mbedtls_error("_tlssocket->send", tls_rc);
break;
}
/* Read data out of the socket */
offset = 0;
size_t content_length = 0;
size_t offset_end = 0;
char *line_beg = _buffer;
char *line_end = NULL;
do {
tls_rc = _tlssocket->recv((unsigned char *) _buffer + offset, sizeof(_buffer) - offset - 1);
if (tls_rc > 0) {
offset += tls_rc;
}
/* Make it null-terminated */
_buffer[offset] = 0;
/* Scan response message
*
* 1. A status line which includes the status code and reason message (e.g., HTTP/1.1 200 OK)
* 2. Response header fields (e.g., Content-Type: text/html)
* 3. An empty line (\r\n)
* 4. An optional message body
*/
if (! offset_end) {
line_end = strstr(line_beg, "\r\n");
if (line_end) {
/* Scan status line */
if (! _got200) {
_got200 = strstr(line_beg, HTTPS_OK_STR) != NULL;
}
/* Scan response header fields for Content-Length
*
* NOTE: Assume chunked transfer (Transfer-Encoding: chunked) is not used
* NOTE: Assume response field name are in lower case
*/
if (content_length == 0) {
sscanf(line_beg, "content-length:%d", &content_length);
}
/* An empty line indicates end of response header fields */
if (line_beg == line_end) {
offset_end = line_end - _buffer + 2 + content_length;
}
/* Go to next line */
line_beg = line_end + 2;
line_end = NULL;
}
}
} while ((offset_end == 0 || offset < offset_end) &&
(tls_rc > 0 || tls_rc == MBEDTLS_ERR_SSL_WANT_READ || tls_rc == MBEDTLS_ERR_SSL_WANT_WRITE));
if (tls_rc < 0 &&
tls_rc != MBEDTLS_ERR_SSL_WANT_READ &&
tls_rc != MBEDTLS_ERR_SSL_WANT_WRITE) {
print_mbedtls_error("_tlssocket->read", tls_rc);
break;
}
_bpos = offset;
_buffer[_bpos] = 0;
/* Print status messages */
printf("HTTPS: Received %d chars from server\n", _bpos);
printf("HTTPS: Received 200 OK status ... %s\n", _got200 ? "[OK]" : "[FAIL]");
printf("HTTPS: Received message:\n");
printf("%s\n", _buffer);
ret = true;
} while (0);
return ret;
}
protected:
MyTLSSocket * _tlssocket;
const char *_domain; /**< Domain name of the HTTPS server */
const uint16_t _port; /**< Port number of the HTTPS server */
char _buffer[HTTPS_USER_BUFFER_SIZE]; /**< User buffer */
};
#endif // End of AWS_IOT_HTTPS_TEST
int main() {
/* The default 9600 bps is too slow to print full TLS debug info and could
* cause the other party to time out. */
printf("\nStarting AWS IoT test\n");
#if defined(MBED_MAJOR_VERSION)
printf("Using Mbed OS %d.%d.%d\n", MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION);
#else
printf("Using Mbed OS from master.\n");
#endif
NetworkInterface *net = NetworkInterface::get_default_instance();
if (NULL == net) {
printf("Connecting to the network failed. See serial output.\n");
return 1;
}
nsapi_error_t status = net->connect();
if (status != NSAPI_ERROR_OK) {
printf("Connecting to the network failed %d!\n", status);
return -1;
}
printf("Connected to the network successfully. IP address: %s\n", net->get_ip_address());
#if AWS_IOT_MQTT_TEST
AWS_IoT_MQTT_Test *mqtt_test = new AWS_IoT_MQTT_Test(AWS_IOT_MQTT_SERVER_NAME, AWS_IOT_MQTT_SERVER_PORT, net);
mqtt_test->start_test();
delete mqtt_test;
#endif // End of AWS_IOT_MQTT_TEST
#if AWS_IOT_HTTPS_TEST
AWS_IoT_HTTPS_Test *https_test = new AWS_IoT_HTTPS_Test(AWS_IOT_HTTPS_SERVER_NAME, AWS_IOT_HTTPS_SERVER_PORT, net);
https_test->start_test();
delete https_test;
#endif // End of AWS_IOT_HTTPS_TEST
/* Some cellular modems e.g.: QUECTEL EC2X need graceful exit; otherwise, they will break in next reboot. */
status = net->disconnect();
if (status != NSAPI_ERROR_OK) {
printf("\n\nDisconnect from network interface failed %d\n", status);
}
}