Luis Amell / IBMIoTF-2

Had to fork with a different name, because of some incompatibility issues.

Dependencies:   MQTT

DeviceClient.cpp@27:3806829a0247, 2020-03-24 (annotated)

Committer:
lamell
Date:
Tue Mar 24 16:00:25 2020 -0400
Revision:
27:3806829a0247
Parent:
25:f4727705353b
Child:
29:40cc05c6c14b
Restored files to nearly original state.

It works better if left to work as a lonely thread.



TO DO:

Try to connect as a managed device.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sathipal 0:f86732d81998 1 /*******************************************************************************
sathipal 0:f86732d81998 2 * Copyright (c) 2015 IBM Corp.
sathipal 0:f86732d81998 3 *
sathipal 0:f86732d81998 4 * All rights reserved. This program and the accompanying materials
sathipal 0:f86732d81998 5 * are made available under the terms of the Eclipse Public License v1.0
sathipal 0:f86732d81998 6 * and Eclipse Distribution License v1.0 which accompany this distribution.
sathipal 0:f86732d81998 7 *
sathipal 0:f86732d81998 8 * The Eclipse Public License is available at
sathipal 0:f86732d81998 9 * http://www.eclipse.org/legal/epl-v10.html
sathipal 0:f86732d81998 10 * and the Eclipse Distribution License is available at
sathipal 0:f86732d81998 11 * http://www.eclipse.org/org/documents/edl-v10.php.
sathipal 0:f86732d81998 12 *
sathipal 0:f86732d81998 13 * Contributors:
sathipal 0:f86732d81998 14 * Sathisumar Palaniappan - initial implementation
sathipal 3:3d91bf839b49 15 * Sathisumar Palaniappan - added reconnect logic and isConnected() method
lokeshhk 5:ea9f483e0294 16 * Lokesh K Haralakatta - Port to mbed OS 5 support
lokeshhk 5:ea9f483e0294 17 * Lokesh K Haralakatta - Added SSL/TLS Support
sathipal 0:f86732d81998 18 *******************************************************************************/
sathipal 0:f86732d81998 19 #include "MQTTClient.h"
sathipal 0:f86732d81998 20 #include "DeviceClient.h"
sathipal 0:f86732d81998 21
sathipal 3:3d91bf839b49 22 // need a wrapper since K64F and LPC1768 wont have the same name for mii read methods
lamell 12:ac091f717e40 23 #if defined(TARGET_UBLOX_C027) || defined(TARGET_K64F) || defined(TARGET_DISCO_F746NG)
sathipal 3:3d91bf839b49 24
sathipal 3:3d91bf839b49 25 static uint32_t linkStatus(void)
sathipal 3:3d91bf839b49 26 {
sathipal 3:3d91bf839b49 27 return (1);
sathipal 3:3d91bf839b49 28 }
sathipal 3:3d91bf839b49 29 #elif defined(TARGET_LPC1768)
sathipal 3:3d91bf839b49 30 #include "lpc_phy.h"
sathipal 3:3d91bf839b49 31
sathipal 3:3d91bf839b49 32 static uint32_t linkStatus(void)
sathipal 3:3d91bf839b49 33 {
sathipal 3:3d91bf839b49 34 return (lpc_mii_read_data() & 1);
sathipal 3:3d91bf839b49 35 }
sathipal 3:3d91bf839b49 36 #endif
lamell 12:ac091f717e40 37
sathipal 0:f86732d81998 38 using namespace IoTF;
sathipal 0:f86732d81998 39
sathipal 0:f86732d81998 40 CommandHandler handler = NULL;
sathipal 0:f86732d81998 41 void msgArrived(MQTT::MessageData& md);
sathipal 0:f86732d81998 42
sathipal 0:f86732d81998 43 /**
sathipal 0:f86732d81998 44 * A client, used by device, that handles connections with the IBM Internet of Things Foundation.
sathipal 0:f86732d81998 45 * This class allows device to publish events and receive commands to/from IBM IoT Foundation wtih simple function calls.
sathipal 0:f86732d81998 46 */
sathipal 2:199ddea804cd 47 DeviceClient::DeviceClient():org(NULL),deviceType(NULL),deviceId(NULL),
lokeshhk 5:ea9f483e0294 48 authMethod(NULL),authToken(NULL),mqttNetwork(NULL),mqttClient(NULL),connected(false),port(0)
sathipal 2:199ddea804cd 49 {
lokeshhk 5:ea9f483e0294 50 LOG("Constructor#1 called::\r\n");
sathipal 0:f86732d81998 51 }
sathipal 0:f86732d81998 52
lokeshhk 5:ea9f483e0294 53 DeviceClient::DeviceClient(char *orgId, char *typeId, char *id, int port):org(orgId),deviceType(typeId),
lokeshhk 5:ea9f483e0294 54 deviceId(id),authMethod(NULL),authToken(NULL),connected(false), port(port)
sathipal 2:199ddea804cd 55 {
lokeshhk 5:ea9f483e0294 56 LOG("Constructor#2 called:: org=%s, type=%s, id=%s\r\n", (org==NULL)?"NULL":org,
sathipal 0:f86732d81998 57 (deviceType==NULL)?"NULL":deviceType, (deviceId==NULL)?"NULL":deviceId);
lamell 25:f4727705353b 58
sathipal 0:f86732d81998 59 if(strcmp(this->org, QUICKSTART) != 0) {
lokeshhk 5:ea9f483e0294 60 WARN("Registered flow must provide valid token\r\n");
sathipal 0:f86732d81998 61 }
lokeshhk 5:ea9f483e0294 62
lokeshhk 5:ea9f483e0294 63 mqttNetwork = new MQTTNetwork();
lokeshhk 5:ea9f483e0294 64 mqttClient = new MQTT::Client<MQTTNetwork, Countdown>(*mqttNetwork);
lokeshhk 5:ea9f483e0294 65
sathipal 0:f86732d81998 66 }
sathipal 0:f86732d81998 67
lokeshhk 5:ea9f483e0294 68 DeviceClient::DeviceClient(char *orgId, char *typeId,char *id, char *method, char *token, int port):org(orgId),
lokeshhk 5:ea9f483e0294 69 deviceType(typeId),deviceId(id),authMethod(method),authToken(token),connected(false), port(port)
sathipal 2:199ddea804cd 70 {
sathipal 0:f86732d81998 71 // Don't print token for security reasons
lokeshhk 5:ea9f483e0294 72 LOG("Constructor#3 called:: org=%s, type=%s, id=%s\r\n", (org==NULL)?"NULL":org,
sathipal 0:f86732d81998 73 (deviceType==NULL)?"NULL":deviceType, (deviceId==NULL)?"NULL":deviceId);
lamell 25:f4727705353b 74
lokeshhk 5:ea9f483e0294 75 mqttNetwork = new MQTTNetwork();
lokeshhk 5:ea9f483e0294 76 mqttClient = new MQTT::Client<MQTTNetwork, Countdown>(*mqttNetwork);
sathipal 0:f86732d81998 77 }
sathipal 0:f86732d81998 78
sathipal 0:f86732d81998 79 /**
sathipal 0:f86732d81998 80 * Connect to the IBM Internet of Things Foundation
lokeshhk 5:ea9f483e0294 81 */
sathipal 0:f86732d81998 82 bool DeviceClient::connect()
lokeshhk 5:ea9f483e0294 83 {
sathipal 0:f86732d81998 84 char *organizationName, *typeId, *id;
lokeshhk 5:ea9f483e0294 85 bool rc = false;
sathipal 0:f86732d81998 86 // Check if any organization is set
lokeshhk 5:ea9f483e0294 87 if(this->org == NULL || (strcmp("", this->org) == 0))
sathipal 3:3d91bf839b49 88 {
lamell 18:ce12e2072cbb 89 organizationName = (char*)QUICKSTART;
sathipal 0:f86732d81998 90 } else {
sathipal 0:f86732d81998 91 organizationName = this->org;
sathipal 0:f86732d81998 92 }
lokeshhk 5:ea9f483e0294 93
sathipal 0:f86732d81998 94 // Check if device type is already mentioned
lokeshhk 5:ea9f483e0294 95 if(this->deviceType == NULL || (strcmp("", this->deviceType) == 0))
sathipal 3:3d91bf839b49 96 {
lamell 18:ce12e2072cbb 97 typeId = (char*)"iotsample-mbed";
sathipal 0:f86732d81998 98 } else {
sathipal 0:f86732d81998 99 typeId = this->deviceType;
sathipal 0:f86732d81998 100 }
lokeshhk 5:ea9f483e0294 101
sathipal 0:f86732d81998 102 char hostname[strlen(organizationName) + strlen(IBM_IOT_MESSAGING) + 1];
sathipal 0:f86732d81998 103 sprintf(hostname, "%s%s", organizationName, IBM_IOT_MESSAGING);
lokeshhk 5:ea9f483e0294 104
lamell 18:ce12e2072cbb 105 //NetworkInterface* net = mqttNetwork->getEth();
lamell 25:f4727705353b 106 NetworkInterface* net = mqttNetwork->network;
lamell 25:f4727705353b 107 //EthernetInterface net = mqttNetwork->network;
lamell 18:ce12e2072cbb 108
lokeshhk 5:ea9f483e0294 109 const char* ip = net->get_ip_address();
sathipal 0:f86732d81998 110
sathipal 0:f86732d81998 111 // Get devices MAC address if deviceId is not set already
lokeshhk 5:ea9f483e0294 112 if(this->deviceId == NULL || (strcmp("", this->deviceId) == 0))
sathipal 3:3d91bf839b49 113 {
sathipal 0:f86732d81998 114 char tmpBuf[50];
sathipal 0:f86732d81998 115 id = getMac(tmpBuf, sizeof(tmpBuf));
sathipal 0:f86732d81998 116 } else {
sathipal 0:f86732d81998 117 id = this->deviceId;
sathipal 0:f86732d81998 118 }
lokeshhk 5:ea9f483e0294 119
sathipal 0:f86732d81998 120 // Construct clientId - d:org:type:id
sathipal 0:f86732d81998 121 char clientId[strlen(organizationName) + strlen(typeId) + strlen(id) + 5];
sathipal 0:f86732d81998 122 sprintf(clientId, "d:%s:%s:%s", organizationName, typeId, id);
lokeshhk 5:ea9f483e0294 123
sathipal 0:f86732d81998 124 // Initialize MQTT Connect
sathipal 0:f86732d81998 125 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
sathipal 0:f86732d81998 126 data.MQTTVersion = 4;
sathipal 0:f86732d81998 127 data.clientID.cstring = clientId;
lokeshhk 5:ea9f483e0294 128
sathipal 0:f86732d81998 129 int quickstartMode = (strcmp(organizationName, QUICKSTART) == 0);
lokeshhk 5:ea9f483e0294 130
lokeshhk 5:ea9f483e0294 131 if (!quickstartMode)
lokeshhk 5:ea9f483e0294 132 {
lamell 18:ce12e2072cbb 133 data.username.cstring = (char*)"use-token-auth";
sathipal 0:f86732d81998 134 data.password.cstring = this->authToken;
lokeshhk 5:ea9f483e0294 135
lokeshhk 5:ea9f483e0294 136 //Check and initialize appropriate port
lokeshhk 5:ea9f483e0294 137 if(port == 1883)
lokeshhk 5:ea9f483e0294 138 port = MQTT_TLS_PORT;
sathipal 0:f86732d81998 139 }
lokeshhk 5:ea9f483e0294 140
lokeshhk 5:ea9f483e0294 141 logData(net, hostname, clientId);
lokeshhk 5:ea9f483e0294 142
lokeshhk 5:ea9f483e0294 143 if(ip){
lokeshhk 5:ea9f483e0294 144 rc = tryConnect(hostname, data);
lokeshhk 5:ea9f483e0294 145 // By default subscribe to commands if we are in registered flow
lokeshhk 5:ea9f483e0294 146 if(rc == true && !quickstartMode)
lokeshhk 5:ea9f483e0294 147 {
lokeshhk 5:ea9f483e0294 148 subscribeToCommands();
lokeshhk 5:ea9f483e0294 149 }
lokeshhk 5:ea9f483e0294 150 if(rc == true)
lokeshhk 5:ea9f483e0294 151 {
lokeshhk 5:ea9f483e0294 152 connected = true;
lamell 25:f4727705353b 153 LOG("Device Client Connected to %s:%d\r\n",hostname,port);
lokeshhk 5:ea9f483e0294 154 }
sathipal 3:3d91bf839b49 155 }
lokeshhk 5:ea9f483e0294 156 else
lokeshhk 5:ea9f483e0294 157 LOG("No IP Assigned to Network Interface...\r\n");
lamell 25:f4727705353b 158
sathipal 0:f86732d81998 159 return rc;
sathipal 0:f86732d81998 160 }
sathipal 0:f86732d81998 161
sathipal 3:3d91bf839b49 162 /**
sathipal 3:3d91bf839b49 163 * Reconnect when the connection is lost. This method disconnects the active connection if any
lokeshhk 5:ea9f483e0294 164 * and tries to initiate a fresh connection.
sathipal 3:3d91bf839b49 165 * This method uses the Ethernet Link status wherever applicable while reconnecting. i.e, tries to
sathipal 3:3d91bf839b49 166 * initiate the connection only when the Ethernet cable is plugged in.
sathipal 3:3d91bf839b49 167 */
lokeshhk 5:ea9f483e0294 168 bool DeviceClient::reConnect()
sathipal 3:3d91bf839b49 169 {
lokeshhk 5:ea9f483e0294 170 LOG("DeviceClient::reConnect() entry and connected = %s\r\n",(connected == true)?"true":"false");
sathipal 3:3d91bf839b49 171 if(connected == true)
sathipal 3:3d91bf839b49 172 {
sathipal 3:3d91bf839b49 173 disconnect();
sathipal 3:3d91bf839b49 174 }
sathipal 3:3d91bf839b49 175
sathipal 3:3d91bf839b49 176 if(linkStatus())
sathipal 3:3d91bf839b49 177 {
lamell 18:ce12e2072cbb 178 //NetworkInterface* net = mqttNetwork->getEth();
lamell 25:f4727705353b 179 NetworkInterface* net = mqttNetwork->network;
lamell 25:f4727705353b 180 //EthernetInterface net = mqttNetwork->network;
lamell 25:f4727705353b 181
lokeshhk 5:ea9f483e0294 182 if(net->connect() == 0)
sathipal 3:3d91bf839b49 183 {
sathipal 3:3d91bf839b49 184 bool status = connect();
lokeshhk 5:ea9f483e0294 185 if(status == false)
sathipal 3:3d91bf839b49 186 {
lokeshhk 5:ea9f483e0294 187 net->disconnect();
sathipal 3:3d91bf839b49 188 }
sathipal 3:3d91bf839b49 189 return status;
sathipal 3:3d91bf839b49 190 }
sathipal 3:3d91bf839b49 191 }
sathipal 3:3d91bf839b49 192 return false;
sathipal 3:3d91bf839b49 193 }
sathipal 3:3d91bf839b49 194
lokeshhk 5:ea9f483e0294 195 bool DeviceClient::tryConnect(char *hostname, MQTTPacket_connectData &data)
sathipal 2:199ddea804cd 196 {
sathipal 0:f86732d81998 197 int rc = -1;
sathipal 0:f86732d81998 198 int retryAttempt = 0;
lokeshhk 5:ea9f483e0294 199 do {
lamell 25:f4727705353b 200 LOG("%d\r\n",rc = mqttNetwork->connect(hostname, port));
lokeshhk 5:ea9f483e0294 201 if (rc != 0)
sathipal 3:3d91bf839b49 202 {
lokeshhk 5:ea9f483e0294 203 WARN("mqttNetwork connect returned: %d\r\n", rc);
sathipal 0:f86732d81998 204 }
sathipal 0:f86732d81998 205
lokeshhk 5:ea9f483e0294 206 // MQTT connect
lamell 25:f4727705353b 207 LOG("%d\r\n",rc = mqttClient->connect(data));
lamell 25:f4727705353b 208 if (rc == 0 && (rc) != 0)
sathipal 3:3d91bf839b49 209 {
lokeshhk 5:ea9f483e0294 210 WARN("MQTT connect returned %d\r\n", rc);
sathipal 0:f86732d81998 211 if (rc == MQTT_NOT_AUTHORIZED || rc == MQTT_BAD_USERNAME_OR_PASSWORD)
sathipal 0:f86732d81998 212 return false; // don't reattempt to connect if credentials are wrong
sathipal 0:f86732d81998 213 } else if (rc == MQTT_CONNECTION_ACCEPTED) {
sathipal 0:f86732d81998 214 return true;
sathipal 0:f86732d81998 215 }
lokeshhk 5:ea9f483e0294 216
sathipal 0:f86732d81998 217 int timeout = getConnTimeout(++retryAttempt);
lokeshhk 5:ea9f483e0294 218
lokeshhk 5:ea9f483e0294 219 WARN("Retry attempt number %d waiting %d\r\n", retryAttempt, timeout);
lokeshhk 5:ea9f483e0294 220
sathipal 2:199ddea804cd 221 // enough retry is done - return to application
lamell 7:b14763b63562 222 if (retryAttempt == 5){
lamell 7:b14763b63562 223
lamell 7:b14763b63562 224 //Here's my modification. If not connected, RESET the board.
lamell 7:b14763b63562 225 NVIC_SystemReset();
sathipal 2:199ddea804cd 226 return false;
lamell 7:b14763b63562 227 } else {
lamell 25:f4727705353b 228 wait(timeout);
lamell 7:b14763b63562 229 }
sathipal 0:f86732d81998 230 } while(true);
sathipal 0:f86732d81998 231 }
sathipal 0:f86732d81998 232
lamell 25:f4727705353b 233 void DeviceClient::logData(NetworkInterface* net, char *hostname, char *clientId)
lamell 25:f4727705353b 234 //void DeviceClient::logData(EthernetInterface net, char *hostname, char *clientId)
sathipal 2:199ddea804cd 235 {
lokeshhk 5:ea9f483e0294 236 // Network debug statements
lokeshhk 5:ea9f483e0294 237 LOG("=====================================\r\n");
lokeshhk 5:ea9f483e0294 238 LOG("Connection Config Details:\r\n");
lokeshhk 5:ea9f483e0294 239 LOG("IP ADDRESS: %s\r\n", net->get_ip_address());
lokeshhk 5:ea9f483e0294 240 LOG("MAC ADDRESS: %s\r\n", net->get_mac_address());
lokeshhk 5:ea9f483e0294 241 LOG("Gateway: %s\r\n", net->get_gateway());
lokeshhk 5:ea9f483e0294 242 LOG("Network Mask: %s\r\n", net->get_netmask());
lokeshhk 5:ea9f483e0294 243 LOG("Server Hostname: %s\r\n", hostname);
lokeshhk 5:ea9f483e0294 244 LOG("Server Port: %d\r\n", port);
lokeshhk 5:ea9f483e0294 245 LOG("Client ID: %s\r\n", clientId);
lamell 25:f4727705353b 246 LOG("=====================================\r\n");
sathipal 0:f86732d81998 247 }
sathipal 0:f86732d81998 248
sathipal 0:f86732d81998 249 int DeviceClient::getConnTimeout(int attemptNumber)
sathipal 0:f86732d81998 250 {
sathipal 0:f86732d81998 251 // Try to increase the timeout every time
sathipal 0:f86732d81998 252 return (attemptNumber * attemptNumber * 5);
sathipal 0:f86732d81998 253 }
sathipal 0:f86732d81998 254
lamell 8:cb2c98efdca8 255
sathipal 3:3d91bf839b49 256 /**
sathipal 3:3d91bf839b49 257 * Returns the connection status, connected or disconnected.
sathipal 3:3d91bf839b49 258 */
sathipal 3:3d91bf839b49 259 bool DeviceClient::isConnected() {
lokeshhk 5:ea9f483e0294 260 return mqttClient->isConnected();
sathipal 3:3d91bf839b49 261 }
sathipal 0:f86732d81998 262
sathipal 0:f86732d81998 263 /**
lokeshhk 5:ea9f483e0294 264 * Publish data to the IBM Internet of Things Foundation. Note that data is published
lokeshhk 5:ea9f483e0294 265 * by default at Quality of Service (QoS) 0, which means that a successful send
sathipal 0:f86732d81998 266 * does not guarantee receipt even if the publish has been successful.
sathipal 0:f86732d81998 267 */
sathipal 0:f86732d81998 268 bool DeviceClient::publishEvent(char *eventName, char *data, MQTT::QoS qos)
sathipal 0:f86732d81998 269 {
lokeshhk 5:ea9f483e0294 270 if(!mqttClient->isConnected())
sathipal 3:3d91bf839b49 271 {
lokeshhk 5:ea9f483e0294 272 WARN("Client is not connected \r\n");
sathipal 0:f86732d81998 273 return false;
sathipal 0:f86732d81998 274 }
lokeshhk 5:ea9f483e0294 275
sathipal 0:f86732d81998 276 MQTT::Message message;
sathipal 0:f86732d81998 277 /* Topic format must be iot-2/evt/<eventName>/fmt/json (let us stick to json format for now)
sathipal 0:f86732d81998 278 *
sathipal 0:f86732d81998 279 * So length must be 10 + strlen(eventName) + 9 + 1
sathipal 0:f86732d81998 280 * iot-2/evt/ = 10
sathipal 0:f86732d81998 281 * /fmt/json = 9
sathipal 0:f86732d81998 282 * NULL char = 1
sathipal 0:f86732d81998 283 */
lokeshhk 5:ea9f483e0294 284
sathipal 0:f86732d81998 285 char topic[10 + strlen(eventName) + 9 + 1];
sathipal 0:f86732d81998 286 sprintf(topic, "%s%s%s", "iot-2/evt/", eventName, "/fmt/json");
lokeshhk 5:ea9f483e0294 287
sathipal 0:f86732d81998 288 message.qos = qos;
sathipal 0:f86732d81998 289 message.retained = false;
sathipal 0:f86732d81998 290 message.dup = false;
sathipal 0:f86732d81998 291 message.payload = (void*)data;
sathipal 0:f86732d81998 292 message.payloadlen = strlen(data);
lokeshhk 5:ea9f483e0294 293
lokeshhk 5:ea9f483e0294 294 LOG("Publishing %s\r\n", data);
lokeshhk 5:ea9f483e0294 295 int rc = mqttClient->publish(topic, message);
sathipal 0:f86732d81998 296 return rc == 0;
sathipal 0:f86732d81998 297 }
sathipal 0:f86732d81998 298
lokeshhk 5:ea9f483e0294 299 void DeviceClient::setCommandCallback(CommandHandler callbackFunc)
sathipal 2:199ddea804cd 300 {
sathipal 0:f86732d81998 301 handler = callbackFunc;
sathipal 0:f86732d81998 302 }
sathipal 0:f86732d81998 303 /**
sathipal 0:f86732d81998 304 * Subscribe to commands from the application. This will be executed only for
sathipal 0:f86732d81998 305 * registered flow (quickstart flow does not support command publish)
sathipal 0:f86732d81998 306 */
lokeshhk 5:ea9f483e0294 307 int DeviceClient::subscribeToCommands()
sathipal 2:199ddea804cd 308 {
sathipal 0:f86732d81998 309 int rc = 0;
sathipal 0:f86732d81998 310 // iot-2/cmd/+/fmt/+
lokeshhk 5:ea9f483e0294 311 if ((rc = mqttClient->subscribe("iot-2/cmd/+/fmt/+", MQTT::QOS2, msgArrived)) != 0)
lokeshhk 5:ea9f483e0294 312 WARN("rc from MQTT subscribe is %d\r\n", rc);
sathipal 0:f86732d81998 313 return rc;
sathipal 0:f86732d81998 314 }
sathipal 0:f86732d81998 315
sathipal 0:f86732d81998 316 /**
lokeshhk 5:ea9f483e0294 317 * Callback method to be registered with MQTT::Client. MQTT::Client calls whenever
sathipal 0:f86732d81998 318 * any command is published to the topic subscribed earlier.
sathipal 0:f86732d81998 319 */
sathipal 0:f86732d81998 320 void msgArrived(MQTT::MessageData& md)
sathipal 0:f86732d81998 321 {
sathipal 0:f86732d81998 322 // check whether callback is registered by the client code
lokeshhk 5:ea9f483e0294 323 if(handler == NULL)
sathipal 3:3d91bf839b49 324 {
sathipal 0:f86732d81998 325 return;
sathipal 0:f86732d81998 326 }
lokeshhk 5:ea9f483e0294 327
sathipal 0:f86732d81998 328 MQTT::Message &message = md.message;
sathipal 0:f86732d81998 329 char topic[md.topicName.lenstring.len + 1];
lokeshhk 5:ea9f483e0294 330
sathipal 0:f86732d81998 331 sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data);
lokeshhk 5:ea9f483e0294 332
lamell 10:665cfb0da4c5 333 LOG("Message arrived on topic %s: Length: %ul. Payload: %s\r\n", topic, message.payloadlen, message.payload);
lamell 25:f4727705353b 334
sathipal 0:f86732d81998 335 // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/
sathipal 0:f86732d81998 336 char* start = strstr(topic, "/cmd/") + 5;
sathipal 0:f86732d81998 337 int len = strstr(topic, "/fmt/") - start;
sathipal 0:f86732d81998 338
sathipal 0:f86732d81998 339 char name[len + 1];
lokeshhk 5:ea9f483e0294 340
sathipal 0:f86732d81998 341 memcpy(name, start, len);
sathipal 0:f86732d81998 342 name[len] = NULL;
lokeshhk 5:ea9f483e0294 343
sathipal 0:f86732d81998 344 start = strstr(topic, "/fmt/") + 5;
lokeshhk 5:ea9f483e0294 345
sathipal 0:f86732d81998 346 char format[20]; // ToDO: need to find the length of the format
sathipal 0:f86732d81998 347 strcpy(format, start);
lokeshhk 5:ea9f483e0294 348
sathipal 0:f86732d81998 349 char payload[message.payloadlen + 1];
sathipal 0:f86732d81998 350 sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload);
lokeshhk 5:ea9f483e0294 351
sathipal 0:f86732d81998 352 IoTF::Command cmd(name, format, payload);
sathipal 0:f86732d81998 353 (*handler)(cmd);
sathipal 0:f86732d81998 354 }
sathipal 0:f86732d81998 355
sathipal 3:3d91bf839b49 356 /**
sathipal 3:3d91bf839b49 357 * Disconnects the connection in order.
sathipal 3:3d91bf839b49 358 */
lokeshhk 5:ea9f483e0294 359 bool DeviceClient::disconnect()
sathipal 2:199ddea804cd 360 {
sathipal 3:3d91bf839b49 361 int rc = 0;
lokeshhk 5:ea9f483e0294 362 if(mqttClient->isConnected())
sathipal 3:3d91bf839b49 363 {
lokeshhk 5:ea9f483e0294 364 rc = mqttClient->disconnect();
sathipal 0:f86732d81998 365 }
lokeshhk 5:ea9f483e0294 366
lamell 18:ce12e2072cbb 367 //NetworkInterface* net = mqttNetwork->getEth();
lamell 25:f4727705353b 368 NetworkInterface* net = mqttNetwork->network;
lamell 25:f4727705353b 369 //EthernetInterface net = mqttNetwork->network;
lamell 25:f4727705353b 370
lokeshhk 5:ea9f483e0294 371 mqttNetwork->disconnect();
lokeshhk 5:ea9f483e0294 372 net->disconnect();
sathipal 3:3d91bf839b49 373 connected = false;
sathipal 3:3d91bf839b49 374 return rc == 0;
sathipal 0:f86732d81998 375 }
sathipal 0:f86732d81998 376
sathipal 0:f86732d81998 377 // Yield to allow MQTT client to process the command
lokeshhk 5:ea9f483e0294 378 void DeviceClient::yield(int ms)
sathipal 2:199ddea804cd 379 {
lokeshhk 5:ea9f483e0294 380 if(mqttClient->isConnected())
sathipal 3:3d91bf839b49 381 {
lokeshhk 5:ea9f483e0294 382 mqttClient->yield(ms);
sathipal 0:f86732d81998 383 }
sathipal 0:f86732d81998 384 }
sathipal 0:f86732d81998 385
sathipal 2:199ddea804cd 386 // Obtain DeviceId address
lokeshhk 5:ea9f483e0294 387 char* DeviceClient::getDeviceId(char* buf, int buflen)
lokeshhk 5:ea9f483e0294 388 {
lokeshhk 5:ea9f483e0294 389 if(this->deviceId == NULL || (strcmp("", this->deviceId) == 0))
sathipal 3:3d91bf839b49 390 {
sathipal 2:199ddea804cd 391 return getMac(buf, buflen);
sathipal 2:199ddea804cd 392 } else {
sathipal 2:199ddea804cd 393 return strncpy(buf, this->deviceId, buflen);
sathipal 2:199ddea804cd 394 }
sathipal 2:199ddea804cd 395 }
sathipal 0:f86732d81998 396 // Obtain MAC address
lokeshhk 5:ea9f483e0294 397 char* DeviceClient::getMac(char* buf, int buflen)
lokeshhk 5:ea9f483e0294 398 {
lamell 18:ce12e2072cbb 399 //NetworkInterface* net = mqttNetwork->getEth();
lamell 25:f4727705353b 400 NetworkInterface* net = mqttNetwork->network;
lamell 25:f4727705353b 401 //EthernetInterface net = mqttNetwork->network;
lamell 25:f4727705353b 402
lokeshhk 5:ea9f483e0294 403 strncpy(buf, net->get_mac_address(), buflen);
sathipal 0:f86732d81998 404
sathipal 0:f86732d81998 405 char* pos; // Remove colons from mac address
sathipal 0:f86732d81998 406 while ((pos = strchr(buf, ':')) != NULL)
sathipal 0:f86732d81998 407 memmove(pos, pos + 1, strlen(pos) + 1);
sathipal 0:f86732d81998 408 return buf;
lokeshhk 5:ea9f483e0294 409 }
lamell 8:cb2c98efdca8 410
lamell 8:cb2c98efdca8 411 char* DeviceClient::ipaddress() {
lamell 8:cb2c98efdca8 412 //char iplocal[25];
lamell 8:cb2c98efdca8 413
lamell 18:ce12e2072cbb 414 //NetworkInterface* net = mqttNetwork->getEth();
lamell 25:f4727705353b 415 NetworkInterface* net = mqttNetwork->network;
lamell 25:f4727705353b 416 //EthernetInterface net = mqttNetwork->network;
lamell 25:f4727705353b 417
lamell 25:f4727705353b 418 const char* ip = net->get_ip_address();
lamell 8:cb2c98efdca8 419
lamell 8:cb2c98efdca8 420 //strcpy(iplocal,ip);
lamell 8:cb2c98efdca8 421 //return iplocal;
lamell 8:cb2c98efdca8 422 return (char*)net->get_ip_address();
lamell 8:cb2c98efdca8 423 }
lamell 10:665cfb0da4c5 424
lamell 10:665cfb0da4c5 425 //NetworkInterface* DeviceClient::eth() {
lamell 10:665cfb0da4c5 426 // NetworkInterface* net = mqttNetwork->getEth();
lamell 10:665cfb0da4c5 427 // return (NetworkInterface*)net;
lamell 10:665cfb0da4c5 428 //}