Had to fork with a different name, because of some incompatibility issues.
DeviceClient.cpp@10:665cfb0da4c5, 2018-12-12 (annotated)
- Committer:
- lamell
- Date:
- Wed Dec 12 22:32:35 2018 +0000
- Revision:
- 10:665cfb0da4c5
- Parent:
- 8:cb2c98efdca8
- Child:
- 12:ac091f717e40
MQTT_MAX_PACKET_SIZE raised from 250 to 1250.; For the need to send larger packets to the server.
Who changed what in which revision?
User | Revision | Line number | New 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 | 7:b14763b63562 | 23 | #if defined(TARGET_UBLOX_C027) || defined(TARGET_K64F) |
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 |
sathipal | 0:f86732d81998 | 37 | using namespace IoTF; |
sathipal | 0:f86732d81998 | 38 | |
sathipal | 0:f86732d81998 | 39 | CommandHandler handler = NULL; |
sathipal | 0:f86732d81998 | 40 | void msgArrived(MQTT::MessageData& md); |
sathipal | 0:f86732d81998 | 41 | |
sathipal | 0:f86732d81998 | 42 | /** |
sathipal | 0:f86732d81998 | 43 | * A client, used by device, that handles connections with the IBM Internet of Things Foundation. |
sathipal | 0:f86732d81998 | 44 | * This class allows device to publish events and receive commands to/from IBM IoT Foundation wtih simple function calls. |
sathipal | 0:f86732d81998 | 45 | */ |
sathipal | 2:199ddea804cd | 46 | DeviceClient::DeviceClient():org(NULL),deviceType(NULL),deviceId(NULL), |
lokeshhk | 5:ea9f483e0294 | 47 | authMethod(NULL),authToken(NULL),mqttNetwork(NULL),mqttClient(NULL),connected(false),port(0) |
sathipal | 2:199ddea804cd | 48 | { |
lokeshhk | 5:ea9f483e0294 | 49 | LOG("Constructor#1 called::\r\n"); |
sathipal | 0:f86732d81998 | 50 | } |
sathipal | 0:f86732d81998 | 51 | |
lokeshhk | 5:ea9f483e0294 | 52 | DeviceClient::DeviceClient(char *orgId, char *typeId, char *id, int port):org(orgId),deviceType(typeId), |
lokeshhk | 5:ea9f483e0294 | 53 | deviceId(id),authMethod(NULL),authToken(NULL),connected(false), port(port) |
sathipal | 2:199ddea804cd | 54 | { |
lokeshhk | 5:ea9f483e0294 | 55 | LOG("Constructor#2 called:: org=%s, type=%s, id=%s\r\n", (org==NULL)?"NULL":org, |
sathipal | 0:f86732d81998 | 56 | (deviceType==NULL)?"NULL":deviceType, (deviceId==NULL)?"NULL":deviceId); |
lokeshhk | 5:ea9f483e0294 | 57 | |
sathipal | 0:f86732d81998 | 58 | if(strcmp(this->org, QUICKSTART) != 0) { |
lokeshhk | 5:ea9f483e0294 | 59 | WARN("Registered flow must provide valid token\r\n"); |
sathipal | 0:f86732d81998 | 60 | } |
lokeshhk | 5:ea9f483e0294 | 61 | |
lokeshhk | 5:ea9f483e0294 | 62 | mqttNetwork = new MQTTNetwork(); |
lokeshhk | 5:ea9f483e0294 | 63 | mqttClient = new MQTT::Client<MQTTNetwork, Countdown>(*mqttNetwork); |
lokeshhk | 5:ea9f483e0294 | 64 | |
sathipal | 0:f86732d81998 | 65 | } |
sathipal | 0:f86732d81998 | 66 | |
lokeshhk | 5:ea9f483e0294 | 67 | DeviceClient::DeviceClient(char *orgId, char *typeId,char *id, char *method, char *token, int port):org(orgId), |
lokeshhk | 5:ea9f483e0294 | 68 | deviceType(typeId),deviceId(id),authMethod(method),authToken(token),connected(false), port(port) |
sathipal | 2:199ddea804cd | 69 | { |
sathipal | 0:f86732d81998 | 70 | // Don't print token for security reasons |
lokeshhk | 5:ea9f483e0294 | 71 | LOG("Constructor#3 called:: org=%s, type=%s, id=%s\r\n", (org==NULL)?"NULL":org, |
sathipal | 0:f86732d81998 | 72 | (deviceType==NULL)?"NULL":deviceType, (deviceId==NULL)?"NULL":deviceId); |
lokeshhk | 5:ea9f483e0294 | 73 | |
lokeshhk | 5:ea9f483e0294 | 74 | mqttNetwork = new MQTTNetwork(); |
lokeshhk | 5:ea9f483e0294 | 75 | mqttClient = new MQTT::Client<MQTTNetwork, Countdown>(*mqttNetwork); |
sathipal | 0:f86732d81998 | 76 | } |
sathipal | 0:f86732d81998 | 77 | |
sathipal | 0:f86732d81998 | 78 | /** |
sathipal | 0:f86732d81998 | 79 | * Connect to the IBM Internet of Things Foundation |
lokeshhk | 5:ea9f483e0294 | 80 | */ |
sathipal | 0:f86732d81998 | 81 | bool DeviceClient::connect() |
lokeshhk | 5:ea9f483e0294 | 82 | { |
sathipal | 0:f86732d81998 | 83 | char *organizationName, *typeId, *id; |
lokeshhk | 5:ea9f483e0294 | 84 | bool rc = false; |
sathipal | 0:f86732d81998 | 85 | // Check if any organization is set |
lokeshhk | 5:ea9f483e0294 | 86 | if(this->org == NULL || (strcmp("", this->org) == 0)) |
sathipal | 3:3d91bf839b49 | 87 | { |
sathipal | 0:f86732d81998 | 88 | organizationName = QUICKSTART; |
sathipal | 0:f86732d81998 | 89 | } else { |
sathipal | 0:f86732d81998 | 90 | organizationName = this->org; |
sathipal | 0:f86732d81998 | 91 | } |
lokeshhk | 5:ea9f483e0294 | 92 | |
sathipal | 0:f86732d81998 | 93 | // Check if device type is already mentioned |
lokeshhk | 5:ea9f483e0294 | 94 | if(this->deviceType == NULL || (strcmp("", this->deviceType) == 0)) |
sathipal | 3:3d91bf839b49 | 95 | { |
sathipal | 0:f86732d81998 | 96 | typeId = "iotsample-mbed"; |
sathipal | 0:f86732d81998 | 97 | } else { |
sathipal | 0:f86732d81998 | 98 | typeId = this->deviceType; |
sathipal | 0:f86732d81998 | 99 | } |
lokeshhk | 5:ea9f483e0294 | 100 | |
sathipal | 0:f86732d81998 | 101 | char hostname[strlen(organizationName) + strlen(IBM_IOT_MESSAGING) + 1]; |
sathipal | 0:f86732d81998 | 102 | sprintf(hostname, "%s%s", organizationName, IBM_IOT_MESSAGING); |
lokeshhk | 5:ea9f483e0294 | 103 | |
lokeshhk | 5:ea9f483e0294 | 104 | NetworkInterface* net = mqttNetwork->getEth(); |
lokeshhk | 5:ea9f483e0294 | 105 | const char* ip = net->get_ip_address(); |
sathipal | 0:f86732d81998 | 106 | |
sathipal | 0:f86732d81998 | 107 | // Get devices MAC address if deviceId is not set already |
lokeshhk | 5:ea9f483e0294 | 108 | if(this->deviceId == NULL || (strcmp("", this->deviceId) == 0)) |
sathipal | 3:3d91bf839b49 | 109 | { |
sathipal | 0:f86732d81998 | 110 | char tmpBuf[50]; |
sathipal | 0:f86732d81998 | 111 | id = getMac(tmpBuf, sizeof(tmpBuf)); |
sathipal | 0:f86732d81998 | 112 | } else { |
sathipal | 0:f86732d81998 | 113 | id = this->deviceId; |
sathipal | 0:f86732d81998 | 114 | } |
lokeshhk | 5:ea9f483e0294 | 115 | |
sathipal | 0:f86732d81998 | 116 | // Construct clientId - d:org:type:id |
sathipal | 0:f86732d81998 | 117 | char clientId[strlen(organizationName) + strlen(typeId) + strlen(id) + 5]; |
sathipal | 0:f86732d81998 | 118 | sprintf(clientId, "d:%s:%s:%s", organizationName, typeId, id); |
lokeshhk | 5:ea9f483e0294 | 119 | |
sathipal | 0:f86732d81998 | 120 | // Initialize MQTT Connect |
sathipal | 0:f86732d81998 | 121 | MQTTPacket_connectData data = MQTTPacket_connectData_initializer; |
sathipal | 0:f86732d81998 | 122 | data.MQTTVersion = 4; |
sathipal | 0:f86732d81998 | 123 | data.clientID.cstring = clientId; |
lokeshhk | 5:ea9f483e0294 | 124 | |
sathipal | 0:f86732d81998 | 125 | int quickstartMode = (strcmp(organizationName, QUICKSTART) == 0); |
lokeshhk | 5:ea9f483e0294 | 126 | |
lokeshhk | 5:ea9f483e0294 | 127 | if (!quickstartMode) |
lokeshhk | 5:ea9f483e0294 | 128 | { |
sathipal | 0:f86732d81998 | 129 | data.username.cstring = "use-token-auth"; |
sathipal | 0:f86732d81998 | 130 | data.password.cstring = this->authToken; |
lokeshhk | 5:ea9f483e0294 | 131 | |
lokeshhk | 5:ea9f483e0294 | 132 | //Check and initialize appropriate port |
lokeshhk | 5:ea9f483e0294 | 133 | if(port == 1883) |
lokeshhk | 5:ea9f483e0294 | 134 | port = MQTT_TLS_PORT; |
sathipal | 0:f86732d81998 | 135 | } |
lokeshhk | 5:ea9f483e0294 | 136 | |
lokeshhk | 5:ea9f483e0294 | 137 | logData(net, hostname, clientId); |
lokeshhk | 5:ea9f483e0294 | 138 | |
lokeshhk | 5:ea9f483e0294 | 139 | if(ip){ |
lokeshhk | 5:ea9f483e0294 | 140 | rc = tryConnect(hostname, data); |
lokeshhk | 5:ea9f483e0294 | 141 | // By default subscribe to commands if we are in registered flow |
lokeshhk | 5:ea9f483e0294 | 142 | if(rc == true && !quickstartMode) |
lokeshhk | 5:ea9f483e0294 | 143 | { |
lokeshhk | 5:ea9f483e0294 | 144 | subscribeToCommands(); |
lokeshhk | 5:ea9f483e0294 | 145 | } |
lokeshhk | 5:ea9f483e0294 | 146 | if(rc == true) |
lokeshhk | 5:ea9f483e0294 | 147 | { |
lokeshhk | 5:ea9f483e0294 | 148 | connected = true; |
lokeshhk | 5:ea9f483e0294 | 149 | LOG("Device Client Connected to %s:%d\r\n",hostname,port); |
lokeshhk | 5:ea9f483e0294 | 150 | } |
sathipal | 3:3d91bf839b49 | 151 | } |
lokeshhk | 5:ea9f483e0294 | 152 | else |
lokeshhk | 5:ea9f483e0294 | 153 | LOG("No IP Assigned to Network Interface...\r\n"); |
lokeshhk | 5:ea9f483e0294 | 154 | |
sathipal | 0:f86732d81998 | 155 | return rc; |
sathipal | 0:f86732d81998 | 156 | } |
sathipal | 0:f86732d81998 | 157 | |
sathipal | 3:3d91bf839b49 | 158 | /** |
sathipal | 3:3d91bf839b49 | 159 | * Reconnect when the connection is lost. This method disconnects the active connection if any |
lokeshhk | 5:ea9f483e0294 | 160 | * and tries to initiate a fresh connection. |
sathipal | 3:3d91bf839b49 | 161 | * This method uses the Ethernet Link status wherever applicable while reconnecting. i.e, tries to |
sathipal | 3:3d91bf839b49 | 162 | * initiate the connection only when the Ethernet cable is plugged in. |
sathipal | 3:3d91bf839b49 | 163 | */ |
lokeshhk | 5:ea9f483e0294 | 164 | bool DeviceClient::reConnect() |
sathipal | 3:3d91bf839b49 | 165 | { |
lokeshhk | 5:ea9f483e0294 | 166 | LOG("DeviceClient::reConnect() entry and connected = %s\r\n",(connected == true)?"true":"false"); |
sathipal | 3:3d91bf839b49 | 167 | if(connected == true) |
sathipal | 3:3d91bf839b49 | 168 | { |
sathipal | 3:3d91bf839b49 | 169 | disconnect(); |
sathipal | 3:3d91bf839b49 | 170 | } |
sathipal | 3:3d91bf839b49 | 171 | |
sathipal | 3:3d91bf839b49 | 172 | if(linkStatus()) |
sathipal | 3:3d91bf839b49 | 173 | { |
lokeshhk | 5:ea9f483e0294 | 174 | NetworkInterface* net = mqttNetwork->getEth(); |
lokeshhk | 5:ea9f483e0294 | 175 | if(net->connect() == 0) |
sathipal | 3:3d91bf839b49 | 176 | { |
sathipal | 3:3d91bf839b49 | 177 | bool status = connect(); |
lokeshhk | 5:ea9f483e0294 | 178 | if(status == false) |
sathipal | 3:3d91bf839b49 | 179 | { |
lokeshhk | 5:ea9f483e0294 | 180 | net->disconnect(); |
sathipal | 3:3d91bf839b49 | 181 | } |
sathipal | 3:3d91bf839b49 | 182 | return status; |
sathipal | 3:3d91bf839b49 | 183 | } |
sathipal | 3:3d91bf839b49 | 184 | } |
sathipal | 3:3d91bf839b49 | 185 | return false; |
sathipal | 3:3d91bf839b49 | 186 | } |
sathipal | 3:3d91bf839b49 | 187 | |
lokeshhk | 5:ea9f483e0294 | 188 | bool DeviceClient::tryConnect(char *hostname, MQTTPacket_connectData &data) |
sathipal | 2:199ddea804cd | 189 | { |
sathipal | 0:f86732d81998 | 190 | int rc = -1; |
sathipal | 0:f86732d81998 | 191 | int retryAttempt = 0; |
lokeshhk | 5:ea9f483e0294 | 192 | do { |
lokeshhk | 5:ea9f483e0294 | 193 | rc = mqttNetwork->connect(hostname, port); |
lokeshhk | 5:ea9f483e0294 | 194 | if (rc != 0) |
sathipal | 3:3d91bf839b49 | 195 | { |
lokeshhk | 5:ea9f483e0294 | 196 | WARN("mqttNetwork connect returned: %d\r\n", rc); |
sathipal | 0:f86732d81998 | 197 | } |
sathipal | 0:f86732d81998 | 198 | |
lokeshhk | 5:ea9f483e0294 | 199 | // MQTT connect |
lokeshhk | 5:ea9f483e0294 | 200 | if (rc == 0 && (rc = mqttClient->connect(data)) != 0) |
sathipal | 3:3d91bf839b49 | 201 | { |
lokeshhk | 5:ea9f483e0294 | 202 | WARN("MQTT connect returned %d\r\n", rc); |
sathipal | 0:f86732d81998 | 203 | if (rc == MQTT_NOT_AUTHORIZED || rc == MQTT_BAD_USERNAME_OR_PASSWORD) |
sathipal | 0:f86732d81998 | 204 | return false; // don't reattempt to connect if credentials are wrong |
sathipal | 0:f86732d81998 | 205 | } else if (rc == MQTT_CONNECTION_ACCEPTED) { |
sathipal | 0:f86732d81998 | 206 | return true; |
sathipal | 0:f86732d81998 | 207 | } |
lokeshhk | 5:ea9f483e0294 | 208 | |
sathipal | 0:f86732d81998 | 209 | int timeout = getConnTimeout(++retryAttempt); |
lokeshhk | 5:ea9f483e0294 | 210 | |
lokeshhk | 5:ea9f483e0294 | 211 | WARN("Retry attempt number %d waiting %d\r\n", retryAttempt, timeout); |
lokeshhk | 5:ea9f483e0294 | 212 | |
sathipal | 2:199ddea804cd | 213 | // enough retry is done - return to application |
lamell | 7:b14763b63562 | 214 | if (retryAttempt == 5){ |
lamell | 7:b14763b63562 | 215 | |
lamell | 7:b14763b63562 | 216 | //Here's my modification. If not connected, RESET the board. |
lamell | 7:b14763b63562 | 217 | NVIC_SystemReset(); |
sathipal | 2:199ddea804cd | 218 | return false; |
lamell | 7:b14763b63562 | 219 | } else { |
sathipal | 0:f86732d81998 | 220 | wait(timeout); |
lamell | 7:b14763b63562 | 221 | } |
sathipal | 0:f86732d81998 | 222 | } while(true); |
sathipal | 0:f86732d81998 | 223 | } |
sathipal | 0:f86732d81998 | 224 | |
lokeshhk | 5:ea9f483e0294 | 225 | void DeviceClient::logData(NetworkInterface* net, char *hostname, char *clientId) |
sathipal | 2:199ddea804cd | 226 | { |
lokeshhk | 5:ea9f483e0294 | 227 | // Network debug statements |
lokeshhk | 5:ea9f483e0294 | 228 | LOG("=====================================\r\n"); |
lokeshhk | 5:ea9f483e0294 | 229 | LOG("Connection Config Details:\r\n"); |
lokeshhk | 5:ea9f483e0294 | 230 | LOG("IP ADDRESS: %s\r\n", net->get_ip_address()); |
lokeshhk | 5:ea9f483e0294 | 231 | LOG("MAC ADDRESS: %s\r\n", net->get_mac_address()); |
lokeshhk | 5:ea9f483e0294 | 232 | LOG("Gateway: %s\r\n", net->get_gateway()); |
lokeshhk | 5:ea9f483e0294 | 233 | LOG("Network Mask: %s\r\n", net->get_netmask()); |
lokeshhk | 5:ea9f483e0294 | 234 | LOG("Server Hostname: %s\r\n", hostname); |
lokeshhk | 5:ea9f483e0294 | 235 | LOG("Server Port: %d\r\n", port); |
lokeshhk | 5:ea9f483e0294 | 236 | LOG("Client ID: %s\r\n", clientId); |
lokeshhk | 5:ea9f483e0294 | 237 | LOG("=====================================\r\n"); |
sathipal | 0:f86732d81998 | 238 | } |
sathipal | 0:f86732d81998 | 239 | |
sathipal | 0:f86732d81998 | 240 | int DeviceClient::getConnTimeout(int attemptNumber) |
sathipal | 0:f86732d81998 | 241 | { |
sathipal | 0:f86732d81998 | 242 | // Try to increase the timeout every time |
sathipal | 0:f86732d81998 | 243 | return (attemptNumber * attemptNumber * 5); |
sathipal | 0:f86732d81998 | 244 | } |
sathipal | 0:f86732d81998 | 245 | |
lamell | 8:cb2c98efdca8 | 246 | |
sathipal | 3:3d91bf839b49 | 247 | /** |
sathipal | 3:3d91bf839b49 | 248 | * Returns the connection status, connected or disconnected. |
sathipal | 3:3d91bf839b49 | 249 | */ |
sathipal | 3:3d91bf839b49 | 250 | bool DeviceClient::isConnected() { |
lokeshhk | 5:ea9f483e0294 | 251 | return mqttClient->isConnected(); |
sathipal | 3:3d91bf839b49 | 252 | } |
sathipal | 0:f86732d81998 | 253 | |
sathipal | 0:f86732d81998 | 254 | /** |
lokeshhk | 5:ea9f483e0294 | 255 | * Publish data to the IBM Internet of Things Foundation. Note that data is published |
lokeshhk | 5:ea9f483e0294 | 256 | * by default at Quality of Service (QoS) 0, which means that a successful send |
sathipal | 0:f86732d81998 | 257 | * does not guarantee receipt even if the publish has been successful. |
sathipal | 0:f86732d81998 | 258 | */ |
sathipal | 0:f86732d81998 | 259 | bool DeviceClient::publishEvent(char *eventName, char *data, MQTT::QoS qos) |
sathipal | 0:f86732d81998 | 260 | { |
lokeshhk | 5:ea9f483e0294 | 261 | if(!mqttClient->isConnected()) |
sathipal | 3:3d91bf839b49 | 262 | { |
lokeshhk | 5:ea9f483e0294 | 263 | WARN("Client is not connected \r\n"); |
sathipal | 0:f86732d81998 | 264 | return false; |
sathipal | 0:f86732d81998 | 265 | } |
lokeshhk | 5:ea9f483e0294 | 266 | |
sathipal | 0:f86732d81998 | 267 | MQTT::Message message; |
sathipal | 0:f86732d81998 | 268 | /* Topic format must be iot-2/evt/<eventName>/fmt/json (let us stick to json format for now) |
sathipal | 0:f86732d81998 | 269 | * |
sathipal | 0:f86732d81998 | 270 | * So length must be 10 + strlen(eventName) + 9 + 1 |
sathipal | 0:f86732d81998 | 271 | * iot-2/evt/ = 10 |
sathipal | 0:f86732d81998 | 272 | * /fmt/json = 9 |
sathipal | 0:f86732d81998 | 273 | * NULL char = 1 |
sathipal | 0:f86732d81998 | 274 | */ |
lokeshhk | 5:ea9f483e0294 | 275 | |
sathipal | 0:f86732d81998 | 276 | char topic[10 + strlen(eventName) + 9 + 1]; |
sathipal | 0:f86732d81998 | 277 | sprintf(topic, "%s%s%s", "iot-2/evt/", eventName, "/fmt/json"); |
lokeshhk | 5:ea9f483e0294 | 278 | |
sathipal | 0:f86732d81998 | 279 | message.qos = qos; |
sathipal | 0:f86732d81998 | 280 | message.retained = false; |
sathipal | 0:f86732d81998 | 281 | message.dup = false; |
sathipal | 0:f86732d81998 | 282 | message.payload = (void*)data; |
sathipal | 0:f86732d81998 | 283 | message.payloadlen = strlen(data); |
lokeshhk | 5:ea9f483e0294 | 284 | |
lokeshhk | 5:ea9f483e0294 | 285 | LOG("Publishing %s\r\n", data); |
lokeshhk | 5:ea9f483e0294 | 286 | int rc = mqttClient->publish(topic, message); |
sathipal | 0:f86732d81998 | 287 | return rc == 0; |
sathipal | 0:f86732d81998 | 288 | } |
sathipal | 0:f86732d81998 | 289 | |
lokeshhk | 5:ea9f483e0294 | 290 | void DeviceClient::setCommandCallback(CommandHandler callbackFunc) |
sathipal | 2:199ddea804cd | 291 | { |
sathipal | 0:f86732d81998 | 292 | handler = callbackFunc; |
sathipal | 0:f86732d81998 | 293 | } |
sathipal | 0:f86732d81998 | 294 | /** |
sathipal | 0:f86732d81998 | 295 | * Subscribe to commands from the application. This will be executed only for |
sathipal | 0:f86732d81998 | 296 | * registered flow (quickstart flow does not support command publish) |
sathipal | 0:f86732d81998 | 297 | */ |
lokeshhk | 5:ea9f483e0294 | 298 | int DeviceClient::subscribeToCommands() |
sathipal | 2:199ddea804cd | 299 | { |
sathipal | 0:f86732d81998 | 300 | int rc = 0; |
sathipal | 0:f86732d81998 | 301 | // iot-2/cmd/+/fmt/+ |
lokeshhk | 5:ea9f483e0294 | 302 | if ((rc = mqttClient->subscribe("iot-2/cmd/+/fmt/+", MQTT::QOS2, msgArrived)) != 0) |
lokeshhk | 5:ea9f483e0294 | 303 | WARN("rc from MQTT subscribe is %d\r\n", rc); |
sathipal | 0:f86732d81998 | 304 | return rc; |
sathipal | 0:f86732d81998 | 305 | } |
sathipal | 0:f86732d81998 | 306 | |
sathipal | 0:f86732d81998 | 307 | /** |
lokeshhk | 5:ea9f483e0294 | 308 | * Callback method to be registered with MQTT::Client. MQTT::Client calls whenever |
sathipal | 0:f86732d81998 | 309 | * any command is published to the topic subscribed earlier. |
sathipal | 0:f86732d81998 | 310 | */ |
sathipal | 0:f86732d81998 | 311 | void msgArrived(MQTT::MessageData& md) |
sathipal | 0:f86732d81998 | 312 | { |
sathipal | 0:f86732d81998 | 313 | // check whether callback is registered by the client code |
lokeshhk | 5:ea9f483e0294 | 314 | if(handler == NULL) |
sathipal | 3:3d91bf839b49 | 315 | { |
sathipal | 0:f86732d81998 | 316 | return; |
sathipal | 0:f86732d81998 | 317 | } |
lokeshhk | 5:ea9f483e0294 | 318 | |
sathipal | 0:f86732d81998 | 319 | MQTT::Message &message = md.message; |
sathipal | 0:f86732d81998 | 320 | char topic[md.topicName.lenstring.len + 1]; |
lokeshhk | 5:ea9f483e0294 | 321 | |
sathipal | 0:f86732d81998 | 322 | sprintf(topic, "%.*s", md.topicName.lenstring.len, md.topicName.lenstring.data); |
lokeshhk | 5:ea9f483e0294 | 323 | |
lamell | 10:665cfb0da4c5 | 324 | LOG("Message arrived on topic %s: Length: %ul. Payload: %s\r\n", topic, message.payloadlen, message.payload); |
lokeshhk | 5:ea9f483e0294 | 325 | |
sathipal | 0:f86732d81998 | 326 | // Command topic: iot-2/cmd/blink/fmt/json - cmd is the string between cmd/ and /fmt/ |
sathipal | 0:f86732d81998 | 327 | char* start = strstr(topic, "/cmd/") + 5; |
sathipal | 0:f86732d81998 | 328 | int len = strstr(topic, "/fmt/") - start; |
sathipal | 0:f86732d81998 | 329 | |
sathipal | 0:f86732d81998 | 330 | char name[len + 1]; |
lokeshhk | 5:ea9f483e0294 | 331 | |
sathipal | 0:f86732d81998 | 332 | memcpy(name, start, len); |
sathipal | 0:f86732d81998 | 333 | name[len] = NULL; |
lokeshhk | 5:ea9f483e0294 | 334 | |
sathipal | 0:f86732d81998 | 335 | start = strstr(topic, "/fmt/") + 5; |
lokeshhk | 5:ea9f483e0294 | 336 | |
sathipal | 0:f86732d81998 | 337 | char format[20]; // ToDO: need to find the length of the format |
sathipal | 0:f86732d81998 | 338 | strcpy(format, start); |
lokeshhk | 5:ea9f483e0294 | 339 | |
sathipal | 0:f86732d81998 | 340 | char payload[message.payloadlen + 1]; |
sathipal | 0:f86732d81998 | 341 | sprintf(payload, "%.*s", message.payloadlen, (char*)message.payload); |
lokeshhk | 5:ea9f483e0294 | 342 | |
sathipal | 0:f86732d81998 | 343 | IoTF::Command cmd(name, format, payload); |
sathipal | 0:f86732d81998 | 344 | (*handler)(cmd); |
sathipal | 0:f86732d81998 | 345 | } |
sathipal | 0:f86732d81998 | 346 | |
sathipal | 3:3d91bf839b49 | 347 | /** |
sathipal | 3:3d91bf839b49 | 348 | * Disconnects the connection in order. |
sathipal | 3:3d91bf839b49 | 349 | */ |
lokeshhk | 5:ea9f483e0294 | 350 | bool DeviceClient::disconnect() |
sathipal | 2:199ddea804cd | 351 | { |
sathipal | 3:3d91bf839b49 | 352 | int rc = 0; |
lokeshhk | 5:ea9f483e0294 | 353 | if(mqttClient->isConnected()) |
sathipal | 3:3d91bf839b49 | 354 | { |
lokeshhk | 5:ea9f483e0294 | 355 | rc = mqttClient->disconnect(); |
sathipal | 0:f86732d81998 | 356 | } |
lokeshhk | 5:ea9f483e0294 | 357 | |
lokeshhk | 5:ea9f483e0294 | 358 | NetworkInterface* net = mqttNetwork->getEth(); |
lokeshhk | 5:ea9f483e0294 | 359 | mqttNetwork->disconnect(); |
lokeshhk | 5:ea9f483e0294 | 360 | net->disconnect(); |
sathipal | 3:3d91bf839b49 | 361 | connected = false; |
sathipal | 3:3d91bf839b49 | 362 | return rc == 0; |
sathipal | 0:f86732d81998 | 363 | } |
sathipal | 0:f86732d81998 | 364 | |
sathipal | 0:f86732d81998 | 365 | // Yield to allow MQTT client to process the command |
lokeshhk | 5:ea9f483e0294 | 366 | void DeviceClient::yield(int ms) |
sathipal | 2:199ddea804cd | 367 | { |
lokeshhk | 5:ea9f483e0294 | 368 | if(mqttClient->isConnected()) |
sathipal | 3:3d91bf839b49 | 369 | { |
lokeshhk | 5:ea9f483e0294 | 370 | mqttClient->yield(ms); |
sathipal | 0:f86732d81998 | 371 | } |
sathipal | 0:f86732d81998 | 372 | } |
sathipal | 0:f86732d81998 | 373 | |
sathipal | 2:199ddea804cd | 374 | // Obtain DeviceId address |
lokeshhk | 5:ea9f483e0294 | 375 | char* DeviceClient::getDeviceId(char* buf, int buflen) |
lokeshhk | 5:ea9f483e0294 | 376 | { |
lokeshhk | 5:ea9f483e0294 | 377 | if(this->deviceId == NULL || (strcmp("", this->deviceId) == 0)) |
sathipal | 3:3d91bf839b49 | 378 | { |
sathipal | 2:199ddea804cd | 379 | return getMac(buf, buflen); |
sathipal | 2:199ddea804cd | 380 | } else { |
sathipal | 2:199ddea804cd | 381 | return strncpy(buf, this->deviceId, buflen); |
sathipal | 2:199ddea804cd | 382 | } |
sathipal | 2:199ddea804cd | 383 | } |
sathipal | 0:f86732d81998 | 384 | // Obtain MAC address |
lokeshhk | 5:ea9f483e0294 | 385 | char* DeviceClient::getMac(char* buf, int buflen) |
lokeshhk | 5:ea9f483e0294 | 386 | { |
lokeshhk | 5:ea9f483e0294 | 387 | NetworkInterface* net = mqttNetwork->getEth(); |
lokeshhk | 5:ea9f483e0294 | 388 | strncpy(buf, net->get_mac_address(), buflen); |
sathipal | 0:f86732d81998 | 389 | |
sathipal | 0:f86732d81998 | 390 | char* pos; // Remove colons from mac address |
sathipal | 0:f86732d81998 | 391 | while ((pos = strchr(buf, ':')) != NULL) |
sathipal | 0:f86732d81998 | 392 | memmove(pos, pos + 1, strlen(pos) + 1); |
sathipal | 0:f86732d81998 | 393 | return buf; |
lokeshhk | 5:ea9f483e0294 | 394 | } |
lamell | 8:cb2c98efdca8 | 395 | |
lamell | 8:cb2c98efdca8 | 396 | char* DeviceClient::ipaddress() { |
lamell | 8:cb2c98efdca8 | 397 | //char iplocal[25]; |
lamell | 8:cb2c98efdca8 | 398 | |
lamell | 8:cb2c98efdca8 | 399 | NetworkInterface* net = mqttNetwork->getEth(); |
lamell | 8:cb2c98efdca8 | 400 | //const char* ip = net->get_ip_address(); |
lamell | 8:cb2c98efdca8 | 401 | |
lamell | 8:cb2c98efdca8 | 402 | //strcpy(iplocal,ip); |
lamell | 8:cb2c98efdca8 | 403 | //return iplocal; |
lamell | 8:cb2c98efdca8 | 404 | return (char*)net->get_ip_address(); |
lamell | 8:cb2c98efdca8 | 405 | } |
lamell | 10:665cfb0da4c5 | 406 | |
lamell | 10:665cfb0da4c5 | 407 | //NetworkInterface* DeviceClient::eth() { |
lamell | 10:665cfb0da4c5 | 408 | // NetworkInterface* net = mqttNetwork->getEth(); |
lamell | 10:665cfb0da4c5 | 409 | // return (NetworkInterface*)net; |
lamell | 10:665cfb0da4c5 | 410 | //} |