yh Tang
NuMaker connection with AWS IoT thru MQTT/HTTPS
main.cpp
- Committer:
- ccli8
- Date:
- 2018-10-12
- Revision:
- 12:97762a6f55e9
- Parent:
- 8:d5ea623ffc1f
- Child:
- 17:6f0ff065cd76
File content as of revision 12:97762a6f55e9:
/* 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"
/* TLSSocket = Mbed TLS over TCPSocket */
#include "TLSSocket.h"
/* Measure memory footprint */
#include "mbed_stats.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"
"MIIE0zCCA7ugAwIBAgIQGNrRniZ96LtKIVjNzGs7SjANBgkqhkiG9w0BAQUFADCB\n"
"yjELMAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQL\n"
"ExZWZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNiBWZXJp\n"
"U2lnbiwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxW\n"
"ZXJpU2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0\n"
"aG9yaXR5IC0gRzUwHhcNMDYxMTA4MDAwMDAwWhcNMzYwNzE2MjM1OTU5WjCByjEL\n"
"MAkGA1UEBhMCVVMxFzAVBgNVBAoTDlZlcmlTaWduLCBJbmMuMR8wHQYDVQQLExZW\n"
"ZXJpU2lnbiBUcnVzdCBOZXR3b3JrMTowOAYDVQQLEzEoYykgMjAwNiBWZXJpU2ln\n"
"biwgSW5jLiAtIEZvciBhdXRob3JpemVkIHVzZSBvbmx5MUUwQwYDVQQDEzxWZXJp\n"
"U2lnbiBDbGFzcyAzIFB1YmxpYyBQcmltYXJ5IENlcnRpZmljYXRpb24gQXV0aG9y\n"
"aXR5IC0gRzUwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQCvJAgIKXo1\n"
"nmAMqudLO07cfLw8RRy7K+D+KQL5VwijZIUVJ/XxrcgxiV0i6CqqpkKzj/i5Vbex\n"
"t0uz/o9+B1fs70PbZmIVYc9gDaTY3vjgw2IIPVQT60nKWVSFJuUrjxuf6/WhkcIz\n"
"SdhDY2pSS9KP6HBRTdGJaXvHcPaz3BJ023tdS1bTlr8Vd6Gw9KIl8q8ckmcY5fQG\n"
"BO+QueQA5N06tRn/Arr0PO7gi+s3i+z016zy9vA9r911kTMZHRxAy3QkGSGT2RT+\n"
"rCpSx4/VBEnkjWNHiDxpg8v+R70rfk/Fla4OndTRQ8Bnc+MUCH7lP59zuDMKz10/\n"
"NIeWiu5T6CUVAgMBAAGjgbIwga8wDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8E\n"
"BAMCAQYwbQYIKwYBBQUHAQwEYTBfoV2gWzBZMFcwVRYJaW1hZ2UvZ2lmMCEwHzAH\n"
"BgUrDgMCGgQUj+XTGoasjY5rw8+AatRIGCx7GS4wJRYjaHR0cDovL2xvZ28udmVy\n"
"aXNpZ24uY29tL3ZzbG9nby5naWYwHQYDVR0OBBYEFH/TZafC3ey78DAJ80M5+gKv\n"
"MzEzMA0GCSqGSIb3DQEBBQUAA4IBAQCTJEowX2LP2BqYLz3q3JktvXf2pXkiOOzE\n"
"p6B4Eq1iDkVwZMXnl2YtmAl+X6/WzChl8gGqCBpH3vn5fJJaCGkgDdk+bW48DW7Y\n"
"5gaRQBi5+MHt39tBquCWIMnNZBU4gcmU7qKEKQsTb47bDN0lAtukixlE0kF6BWlK\n"
"WE9gyn6CagsCqiUXObXbf+eEZSqVir2G3l6BFoMtEMze/aiCKm0oHw0LxOXnGiYZ\n"
"4fQRbxC1lfznQgUy286dUV4otp6F01vvpX1FQHKOtw5rDgb7MzVIcbidJ4vEZV8N\n"
"hnacRHr2lVz2XTIIM6RUthg/aFzyQkqFOFSDX9HoLPKsEdao7WNq\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"
"MIIDWTCCAkGgAwIBAgIUAzDIpEQWV/yKVo8suGhvjmFY0n4wDQYJKoZIhvcNAQEL\n"
"BQAwTTFLMEkGA1UECwxCQW1hem9uIFdlYiBTZXJ2aWNlcyBPPUFtYXpvbi5jb20g\n"
"SW5jLiBMPVNlYXR0bGUgU1Q9V2FzaGluZ3RvbiBDPVVTMB4XDTE4MDQxNzA5NDMx\n"
"M1oXDTQ5MTIzMTIzNTk1OVowHjEcMBoGA1UEAwwTQVdTIElvVCBDZXJ0aWZpY2F0\n"
"ZTCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKsLlECiw4ud5laejJmL\n"
"bBhafKLdCRx6tkcjBYyEUoAC3Qs2ogqGngQgjU4QJoWpEBO/U1M+e1QtlZ2o/CiL\n"
"MViHA3rYvP86N/TH8pFA3aPKaeEp+WIt5v4OXdfPkVNKTotiRuRCpzRzrY4xKp11\n"
"ouKkVKf3FcNuKIMt/uEhje90KofBbFHQY3HFYe19qIg1m/IBV+npmNlAKElGNSB7\n"
"xHHLzzUuue38s+ceJyzsWuPjFiVYoeyPHF8gDVWf28XJ4KUFs80Deycqe9efroud\n"
"cQY/6aLDWDJXHvhenwoAIbHqUsYRoWoanrg5Cq3id5+pzVkadNV3+x9bGwROhpbQ\n"
"M9ECAwEAAaNgMF4wHwYDVR0jBBgwFoAUVUXg3+Dd1qSnAT9LN413zSdNoE0wHQYD\n"
"VR0OBBYEFIx86SOxw5k/50GtyRjUwlj+9d1gMAwGA1UdEwEB/wQCMAAwDgYDVR0P\n"
"AQH/BAQDAgeAMA0GCSqGSIb3DQEBCwUAA4IBAQCI1fqqjvLAFzL2E1nvWMrkaWN2\n"
"EQK44uOcw53ZzgNNH7fJ85BW8T2l1yZx/Blgs10pEp7vmccnRoR7nYbUGO8++9nG\n"
"S7bfZhiaE2syJqqvLwPGdqR6fvDdfEpmhgJ1CqeMCqun9XZvUTsgBn7Sqqz7P99h\n"
"gGmDRKS/CtsPai0Df0ZPNuV/YuUkpHKJSDm+ZTnzevMS3KXkG1cc/sIuc4IwF+aj\n"
"nbyzdC2fN0r+34srQ8/9aXezOTQ0NBWtoJCCkD+LL6PYJJkAgLA2jcbcbuRJUQ7n\n"
"Zsp25kKX40fuyIcgPRsd/7sao3zTVYxwKy8r6/mbgrPiMeHvJZ8y3nwUpsPO\n"
"-----END CERTIFICATE-----\n";
/* User private key paired with above */
const char SSL_USER_PRIV_KEY_PEM[] = "-----BEGIN RSA PRIVATE KEY-----\n"
"MIIEowIBAAKCAQEAqwuUQKLDi53mVp6MmYtsGFp8ot0JHHq2RyMFjIRSgALdCzai\n"
"CoaeBCCNThAmhakQE79TUz57VC2Vnaj8KIsxWIcDeti8/zo39MfykUDdo8pp4Sn5\n"
"Yi3m/g5d18+RU0pOi2JG5EKnNHOtjjEqnXWi4qRUp/cVw24ogy3+4SGN73Qqh8Fs\n"
"UdBjccVh7X2oiDWb8gFX6emY2UAoSUY1IHvEccvPNS657fyz5x4nLOxa4+MWJVih\n"
"7I8cXyANVZ/bxcngpQWzzQN7Jyp715+ui51xBj/posNYMlce+F6fCgAhsepSxhGh\n"
"ahqeuDkKreJ3n6nNWRp01Xf7H1sbBE6GltAz0QIDAQABAoIBAAzl7KILJA/NMmdp\n"
"wVR6zQXxHODzJhK9ti0bGPoFqGr6zExiLEn66MOK6NzwHteJbirvDIuEdKxeW5/t\n"
"9EXiaTAxzjNfULE2ZK3Svhnx+ES3qNBP5/xdVcPmtXDmuCC9w7qDCLGBzTYJWxcT\n"
"4hDJpCTPG4sm+L8p+Wga+dNkQl3CFyHHINDZ0pKcP0kDDt6inKfiU7uU4lFYbCZy\n"
"PceUgIOTQiNVoPQYtkHgZAtmD9rcwdq2/0GZEbzTkZuSE9S8+WlGxJP5xMGzeVsv\n"
"zZ/scx0LM7fz5Zq0lsvAwSB1mcs04DaaNpU7Z0tXDIS249RTqdtpPkJzmevpAGhF\n"
"VNe30/kCgYEA4rflfqyw/YHWKRxCGJRO+q0gPvlBIes30noz5Hxl0knb/J5Ng4Nx\n"
"xMaIMZgCbwHbw5i01JOPvVKICROKb8wkli4Y2eVzxMPKk2CSpji16RQZ4eOl3YXL\n"
"1Vnn07Ei+GpsGgDNF0HWf/Ur7es/KdAPCWbKJyoSR90+WN29gP2+Zp8CgYEAwSLv\n"
"Kt/vdd6XKnR9xR3IajsW/X2GR/x/m2JffJPOP6VpDTKAbv86hVHDV0oBEDMDc7qy\n"
"023ognyFCPb9Gzol2lq8egjMsisA2bgoB9HqldrSYlaZ0wPe0QJBf1gZ29jPyVJ0\n"
"ciaBbNbSRhwTrwet7Bae9EbpJsyvBxVh00v0f48CgYEAvKQKviXudmCL01UB4fW0\n"
"6XsXs44tlY1juyuW9exTxG9ULZOCJ4U9Kl+OfsVecQL42ny7KY1GMl7zdanerDsN\n"
"zi+42cTDWNsYORxHqSrSoYbqKjwCjJmBCppt/IQM9umF3PUBsPJFCd7zmFj/C0lk\n"
"2Yu/dGrbHxSFheeqgCOhQz0CgYBfZxdHUYji64o2cYay+QxH1Vp86yWKp6KNKeHL\n"
"EuP9soKa/0hMDA1nT8UzeB3gV6Kr5xxwrkj9M+8vR3otmeKa4tlZWsFqfS2VXo9/\n"
"lWTQk1/7LZYckzvceMXL1sQnQgkaBH366SRjlBYYhcP/YMa76Uypk+GVxePrltdU\n"
"3Z8v5wKBgEXL38yc9LqTIWe1U40ZZKvp2A8c86jtstorEEFqXharE8kxcEpL8ZLL\n"
"wjgPKdfNMIuApHSrhG7a7gU1rgJyDy1sOIwSvgTYrWfITPTVu5owvSZEblx4KYOm\n"
"g8hke3Oego4v9cwctkQss3/HZ6rs3PR942oAetuxLy3KPF83IeFm\n"
"-----END RSA PRIVATE KEY-----\n";
#if AWS_IOT_MQTT_TEST
#define AWS_IOT_MQTT_SERVER_NAME "a1fljoeglhtf61.iot.us-east-2.amazonaws.com"
#define AWS_IOT_MQTT_SERVER_PORT 8883
#define AWS_IOT_MQTT_THINGNAME "Nuvoton-Mbed-D001"
#define AWS_IOT_MQTT_CLIENTNAME "Nuvoton Client"
/* 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",
"$aws/things/" AWS_IOT_MQTT_THINGNAME "/shadow/delete/rejected"
};
const char DELETETHINGSHADOW_MQTT_TOPIC_PUBLISH_MESSAGE[] = "";
/* MQTT user buffer size */
const int MQTT_USER_BUFFER_SIZE = 600;
/* Configure MAX_MQTT_PACKET_SIZE to meet your application.
* We may meet unknown MQTT error with MAX_MQTT_PACKET_SIZE too small, but
* MQTT lib doesn't tell enough error message. Try to enlarge it. */
const int MAX_MQTT_PACKET_SIZE = 1000;
#endif // End of AWS_IOT_MQTT_TEST
#if AWS_IOT_HTTPS_TEST
#define AWS_IOT_HTTPS_SERVER_NAME "a1fljoeglhtf61.iot.us-east-2.amazonaws.com"
#define AWS_IOT_HTTPS_SERVER_PORT 8443
#define AWS_IOT_HTTPS_THINGNAME "Nuvoton-Mbed-D001"
/* Publish to user topic through HTTPS/POST
* HTTP POST https://"endpoint"/topics/"yourTopicHierarchy" */
const char USER_TOPIC_HTTPS_PATH[] = "/topics/Nuvoton/Mbed/D001?qos=1";
const char USER_TOPIC_HTTPS_REQUEST_METHOD[] = "POST";
const char USER_TOPIC_HTTPS_REQUEST_MESSAGE_BODY[] = "{ \"message\": \"Hello from Nuvoton Mbed device\" }";
/* Update thing shadow by publishing to UpdateThingShadow topic through HTTPS/POST
* HTTP POST https://"endpoint"/topics/$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 TLSSocket(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<TLSSocket, 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", mqtt_rc);
}
printf("\rMQTT disconnects OK\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);
}
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 */
while (! _message_arrive_count) {
_mqtt_client->yield(100);
}
clear_message_arrive_count();
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:
TLSSocket * _tlssocket;
MQTT::Client<TLSSocket, 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 TLSSocket(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:
TLSSocket * _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
/* Heap usage */
mbed_stats_heap_t heap_stats;
mbed_stats_heap_get(&heap_stats);
printf("\nCurrent heap size: %lu\n", heap_stats.current_size);
printf("Max heap size: %lu\n\n", heap_stats.max_size);
}