Volodymyr Shymanskyy / Blynk Featured

Blynk library for embedded hardware. Works with Arduino, ESP8266, Raspberry Pi, Intel Edison/Galileo, LinkIt ONE, Particle Core/Photon, Energia, ARM mbed, etc. http://www.blynk.cc/

Dependents:   Blynk_RBL_BLE_Nano Blynk_MicroBit Blynk_Serial Blynk_RBL_BLE_Nano

Blynk/BlynkProtocol.h@14:76d8fd871a4d, 2017-06-20 (annotated)

Committer:
Volodymyr Shymanskyy
Date:
Tue Jun 20 00:20:01 2017 +0300
Revision:
14:76d8fd871a4d
Parent:
13:ed6276c0afb7
Child:
15:975b60f7a8ff
Update version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
vshymanskyy 0:58b20b438383 1 /**
vshymanskyy 0:58b20b438383 2 * @file BlynkProtocol.h
vshymanskyy 0:58b20b438383 3 * @author Volodymyr Shymanskyy
vshymanskyy 0:58b20b438383 4 * @license This project is released under the MIT License (MIT)
vshymanskyy 0:58b20b438383 5 * @copyright Copyright (c) 2015 Volodymyr Shymanskyy
vshymanskyy 0:58b20b438383 6 * @date Jan 2015
vshymanskyy 0:58b20b438383 7 * @brief Blynk protocol implementation
vshymanskyy 0:58b20b438383 8 *
vshymanskyy 0:58b20b438383 9 */
vshymanskyy 0:58b20b438383 10
vshymanskyy 0:58b20b438383 11 #ifndef BlynkProtocol_h
vshymanskyy 0:58b20b438383 12 #define BlynkProtocol_h
vshymanskyy 0:58b20b438383 13
vshymanskyy 0:58b20b438383 14 #include <string.h>
vshymanskyy 0:58b20b438383 15 #include <stdlib.h>
vshymanskyy 0:58b20b438383 16 #include <Blynk/BlynkDebug.h>
vshymanskyy 0:58b20b438383 17 #include <Blynk/BlynkProtocolDefs.h>
vshymanskyy 0:58b20b438383 18 #include <Blynk/BlynkApi.h>
vshymanskyy 0:58b20b438383 19 #include <utility/BlynkUtility.h>
vshymanskyy 0:58b20b438383 20
vshymanskyy 0:58b20b438383 21 template <class Transp>
vshymanskyy 0:58b20b438383 22 class BlynkProtocol
vshymanskyy 0:58b20b438383 23 : public BlynkApi< BlynkProtocol<Transp> >
vshymanskyy 0:58b20b438383 24 {
vshymanskyy 0:58b20b438383 25 friend class BlynkApi< BlynkProtocol<Transp> >;
vshymanskyy 0:58b20b438383 26 public:
vshymanskyy 0:58b20b438383 27 enum BlynkState {
vshymanskyy 0:58b20b438383 28 CONNECTING,
vshymanskyy 0:58b20b438383 29 CONNECTED,
vshymanskyy 0:58b20b438383 30 DISCONNECTED,
vshymanskyy 0:58b20b438383 31 };
vshymanskyy 0:58b20b438383 32
vshymanskyy 0:58b20b438383 33 BlynkProtocol(Transp& transp)
vshymanskyy 0:58b20b438383 34 : conn(transp)
vshymanskyy 0:58b20b438383 35 , authkey(NULL)
Volodymyr Shymanskyy 9:7369ec77a3ea 36 , redir_serv(NULL)
vshymanskyy 0:58b20b438383 37 , lastActivityIn(0)
vshymanskyy 0:58b20b438383 38 , lastActivityOut(0)
vshymanskyy 0:58b20b438383 39 , lastHeartbeat(0)
vshymanskyy 0:58b20b438383 40 #ifdef BLYNK_MSG_LIMIT
vshymanskyy 0:58b20b438383 41 , deltaCmd(0)
vshymanskyy 0:58b20b438383 42 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 43 , msgIdOut(0)
Volodymyr Shymanskyy 14:76d8fd871a4d 44 , msgIdOutOverride(0)
vshymanskyy 0:58b20b438383 45 , state(CONNECTING)
vshymanskyy 0:58b20b438383 46 {}
vshymanskyy 0:58b20b438383 47
vshymanskyy 0:58b20b438383 48 bool connected() { return state == CONNECTED; }
vshymanskyy 0:58b20b438383 49
vshymanskyy 0:58b20b438383 50 bool connect(uint32_t timeout = BLYNK_TIMEOUT_MS*3) {
Volodymyr Shymanskyy 9:7369ec77a3ea 51 conn.disconnect();
Volodymyr Shymanskyy 9:7369ec77a3ea 52 state = CONNECTING;
Volodymyr Shymanskyy 9:7369ec77a3ea 53 millis_time_t started = this->getMillis();
Volodymyr Shymanskyy 9:7369ec77a3ea 54 while ((state != CONNECTED) &&
Volodymyr Shymanskyy 9:7369ec77a3ea 55 (this->getMillis() - started < timeout))
Volodymyr Shymanskyy 9:7369ec77a3ea 56 {
Volodymyr Shymanskyy 9:7369ec77a3ea 57 run();
Volodymyr Shymanskyy 9:7369ec77a3ea 58 }
Volodymyr Shymanskyy 14:76d8fd871a4d 59 run(); // Workaround for #325: Getting wrong bytes with ESP8266-SSL
Volodymyr Shymanskyy 9:7369ec77a3ea 60 return state == CONNECTED;
vshymanskyy 0:58b20b438383 61 }
vshymanskyy 0:58b20b438383 62
vshymanskyy 0:58b20b438383 63 void disconnect() {
vshymanskyy 0:58b20b438383 64 conn.disconnect();
vshymanskyy 0:58b20b438383 65 state = DISCONNECTED;
vshymanskyy 0:58b20b438383 66 BLYNK_LOG1(BLYNK_F("Disconnected"));
vshymanskyy 0:58b20b438383 67 }
vshymanskyy 0:58b20b438383 68
vshymanskyy 0:58b20b438383 69 bool run(bool avail = false);
vshymanskyy 0:58b20b438383 70
Volodymyr Shymanskyy 3:31e4b850b126 71 // TODO: Fixme
vshymanskyy 0:58b20b438383 72 void startSession() {
Volodymyr Shymanskyy 3:31e4b850b126 73 conn.connect();
Volodymyr Shymanskyy 9:7369ec77a3ea 74 state = CONNECTING;
vshymanskyy 0:58b20b438383 75 #ifdef BLYNK_MSG_LIMIT
vshymanskyy 0:58b20b438383 76 deltaCmd = 1000;
vshymanskyy 0:58b20b438383 77 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 78 msgIdOut = 0;
Volodymyr Shymanskyy 9:7369ec77a3ea 79 lastHeartbeat = lastActivityIn = lastActivityOut = this->getMillis(); // TODO: - 5005UL
vshymanskyy 0:58b20b438383 80 }
vshymanskyy 0:58b20b438383 81
vshymanskyy 0:58b20b438383 82 void sendCmd(uint8_t cmd, uint16_t id = 0, const void* data = NULL, size_t length = 0, const void* data2 = NULL, size_t length2 = 0);
vshymanskyy 0:58b20b438383 83
vshymanskyy 0:58b20b438383 84 private:
Volodymyr Shymanskyy 14:76d8fd871a4d 85
Volodymyr Shymanskyy 14:76d8fd871a4d 86 void internalReconnect() {
Volodymyr Shymanskyy 14:76d8fd871a4d 87 state = CONNECTING;
Volodymyr Shymanskyy 14:76d8fd871a4d 88 conn.disconnect();
Volodymyr Shymanskyy 14:76d8fd871a4d 89 BlynkOnDisconnected();
Volodymyr Shymanskyy 14:76d8fd871a4d 90 }
Volodymyr Shymanskyy 14:76d8fd871a4d 91
vshymanskyy 0:58b20b438383 92 int readHeader(BlynkHeader& hdr);
vshymanskyy 0:58b20b438383 93 uint16_t getNextMsgId();
vshymanskyy 0:58b20b438383 94
vshymanskyy 0:58b20b438383 95 protected:
vshymanskyy 0:58b20b438383 96 void begin(const char* auth) {
Volodymyr Shymanskyy 9:7369ec77a3ea 97 this->authkey = auth;
Volodymyr Shymanskyy 9:7369ec77a3ea 98
Volodymyr Shymanskyy 9:7369ec77a3ea 99 #if defined(BLYNK_NO_FANCY_LOGO)
vshymanskyy 0:58b20b438383 100 BLYNK_LOG1(BLYNK_F("Blynk v" BLYNK_VERSION " on " BLYNK_INFO_DEVICE));
Volodymyr Shymanskyy 9:7369ec77a3ea 101 #elif defined(BLYNK_FANCY_LOGO_3D)
Volodymyr Shymanskyy 9:7369ec77a3ea 102 BLYNK_LOG1(BLYNK_F("\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 103 " ____ ___ __\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 104 " /\\ _`\\ /\\_ \\ /\\ \\ _\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 105 " \\ \\ \\_\\ \\\\//\\ \\ __ __ ___ \\ \\ \\/ \\\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 106 " \\ \\ _ < \\ \\ \\ /\\ \\/\\ \\ /' _ `\\\\ \\ , <\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 107 " \\ \\ \\_\\ \\ \\_\\ \\_\\ \\ \\_\\ \\ /\\ \\/\\ \\\\ \\ \\\\`\\\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 108 " \\ \\____/ /\\____\\\\/`____ \\\\ \\_\\ \\_\\\\ \\_\\\\_\\\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 109 " \\/___/ \\/____/ `/___/\\ \\\\/_/\\/_/ \\/_//_/\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 110 " /\\___/\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 111 " \\/__/ " BLYNK_VERSION " on " BLYNK_INFO_DEVICE "\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 112 ));
Volodymyr Shymanskyy 9:7369ec77a3ea 113 #else
Volodymyr Shymanskyy 9:7369ec77a3ea 114 BLYNK_LOG1(BLYNK_F("\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 115 " ___ __ __\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 116 " / _ )/ /_ _____ / /__\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 117 " / _ / / // / _ \\/ '_/\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 118 " /____/_/\\_, /_//_/_/\\_\\\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 119 " /___/ v" BLYNK_VERSION " on " BLYNK_INFO_DEVICE "\n"
Volodymyr Shymanskyy 9:7369ec77a3ea 120 ));
Volodymyr Shymanskyy 9:7369ec77a3ea 121 #endif
Volodymyr Shymanskyy 9:7369ec77a3ea 122
Volodymyr Shymanskyy 9:7369ec77a3ea 123 #ifdef BLYNK_DEBUG
Volodymyr Shymanskyy 9:7369ec77a3ea 124 if (size_t ram = BlynkFreeRam()) {
Volodymyr Shymanskyy 9:7369ec77a3ea 125 BLYNK_LOG2(BLYNK_F("Free RAM: "), ram);
Volodymyr Shymanskyy 9:7369ec77a3ea 126 }
Volodymyr Shymanskyy 9:7369ec77a3ea 127 #endif
vshymanskyy 0:58b20b438383 128 }
vshymanskyy 0:58b20b438383 129 bool processInput(void);
vshymanskyy 0:58b20b438383 130
vshymanskyy 0:58b20b438383 131 Transp& conn;
vshymanskyy 0:58b20b438383 132
vshymanskyy 0:58b20b438383 133 private:
vshymanskyy 0:58b20b438383 134 const char* authkey;
Volodymyr Shymanskyy 9:7369ec77a3ea 135 char* redir_serv;
vshymanskyy 0:58b20b438383 136 millis_time_t lastActivityIn;
vshymanskyy 0:58b20b438383 137 millis_time_t lastActivityOut;
vshymanskyy 0:58b20b438383 138 union {
Volodymyr Shymanskyy 9:7369ec77a3ea 139 millis_time_t lastHeartbeat;
Volodymyr Shymanskyy 9:7369ec77a3ea 140 millis_time_t lastLogin;
vshymanskyy 0:58b20b438383 141 };
vshymanskyy 0:58b20b438383 142 #ifdef BLYNK_MSG_LIMIT
vshymanskyy 0:58b20b438383 143 millis_time_t deltaCmd;
vshymanskyy 0:58b20b438383 144 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 145 uint16_t msgIdOut;
Volodymyr Shymanskyy 14:76d8fd871a4d 146 uint16_t msgIdOutOverride;
Volodymyr Shymanskyy 3:31e4b850b126 147 protected:
vshymanskyy 0:58b20b438383 148 BlynkState state;
vshymanskyy 0:58b20b438383 149 };
vshymanskyy 0:58b20b438383 150
vshymanskyy 0:58b20b438383 151 template <class Transp>
vshymanskyy 0:58b20b438383 152 bool BlynkProtocol<Transp>::run(bool avail)
vshymanskyy 0:58b20b438383 153 {
Volodymyr Shymanskyy 9:7369ec77a3ea 154 BLYNK_RUN_YIELD();
vshymanskyy 0:58b20b438383 155
vshymanskyy 0:58b20b438383 156 if (state == DISCONNECTED) {
vshymanskyy 0:58b20b438383 157 return false;
vshymanskyy 0:58b20b438383 158 }
vshymanskyy 0:58b20b438383 159
vshymanskyy 0:58b20b438383 160 const bool tconn = conn.connected();
vshymanskyy 0:58b20b438383 161
vshymanskyy 0:58b20b438383 162 if (tconn) {
vshymanskyy 0:58b20b438383 163 if (avail || conn.available() > 0) {
vshymanskyy 0:58b20b438383 164 //BLYNK_LOG2(BLYNK_F("Available: "), conn.available());
vshymanskyy 0:58b20b438383 165 //const unsigned long t = micros();
vshymanskyy 0:58b20b438383 166 if (!processInput()) {
vshymanskyy 0:58b20b438383 167 conn.disconnect();
vshymanskyy 0:58b20b438383 168 // TODO: Only when in direct mode?
vshymanskyy 0:58b20b438383 169 #ifdef BLYNK_USE_DIRECT_CONNECT
vshymanskyy 0:58b20b438383 170 state = CONNECTING;
vshymanskyy 0:58b20b438383 171 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 172 BlynkOnDisconnected();
vshymanskyy 0:58b20b438383 173 return false;
vshymanskyy 0:58b20b438383 174 }
vshymanskyy 0:58b20b438383 175 //BLYNK_LOG2(BLYNK_F("Proc time: "), micros() - t);
vshymanskyy 0:58b20b438383 176 }
vshymanskyy 0:58b20b438383 177 }
vshymanskyy 0:58b20b438383 178
vshymanskyy 0:58b20b438383 179 const millis_time_t t = this->getMillis();
vshymanskyy 0:58b20b438383 180
vshymanskyy 0:58b20b438383 181 if (state == CONNECTED) {
vshymanskyy 0:58b20b438383 182 if (!tconn) {
vshymanskyy 0:58b20b438383 183 lastHeartbeat = t;
Volodymyr Shymanskyy 14:76d8fd871a4d 184 internalReconnect();
vshymanskyy 0:58b20b438383 185 return false;
vshymanskyy 0:58b20b438383 186 }
vshymanskyy 0:58b20b438383 187
vshymanskyy 0:58b20b438383 188 if (t - lastActivityIn > (1000UL * BLYNK_HEARTBEAT + BLYNK_TIMEOUT_MS*3)) {
vshymanskyy 0:58b20b438383 189 #ifdef BLYNK_DEBUG
vshymanskyy 0:58b20b438383 190 BLYNK_LOG6(BLYNK_F("Heartbeat timeout: "), t, BLYNK_F(", "), lastActivityIn, BLYNK_F(", "), lastHeartbeat);
vshymanskyy 0:58b20b438383 191 #else
vshymanskyy 0:58b20b438383 192 BLYNK_LOG1(BLYNK_F("Heartbeat timeout"));
vshymanskyy 0:58b20b438383 193 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 194 internalReconnect();
vshymanskyy 0:58b20b438383 195 return false;
vshymanskyy 0:58b20b438383 196 } else if ((t - lastActivityIn > 1000UL * BLYNK_HEARTBEAT ||
vshymanskyy 0:58b20b438383 197 t - lastActivityOut > 1000UL * BLYNK_HEARTBEAT) &&
vshymanskyy 0:58b20b438383 198 t - lastHeartbeat > BLYNK_TIMEOUT_MS)
vshymanskyy 0:58b20b438383 199 {
vshymanskyy 0:58b20b438383 200 // Send ping if we didn't either send or receive something
vshymanskyy 0:58b20b438383 201 // for BLYNK_HEARTBEAT seconds
vshymanskyy 0:58b20b438383 202 sendCmd(BLYNK_CMD_PING);
vshymanskyy 0:58b20b438383 203 lastHeartbeat = t;
vshymanskyy 0:58b20b438383 204 }
vshymanskyy 0:58b20b438383 205 } else if (state == CONNECTING) {
Volodymyr Shymanskyy 9:7369ec77a3ea 206 #ifdef BLYNK_USE_DIRECT_CONNECT
Volodymyr Shymanskyy 9:7369ec77a3ea 207 if (!tconn)
Volodymyr Shymanskyy 9:7369ec77a3ea 208 conn.connect();
Volodymyr Shymanskyy 9:7369ec77a3ea 209 #else
vshymanskyy 0:58b20b438383 210 if (tconn && (t - lastLogin > BLYNK_TIMEOUT_MS)) {
vshymanskyy 0:58b20b438383 211 BLYNK_LOG1(BLYNK_F("Login timeout"));
vshymanskyy 0:58b20b438383 212 conn.disconnect();
vshymanskyy 0:58b20b438383 213 state = CONNECTING;
vshymanskyy 0:58b20b438383 214 return false;
vshymanskyy 0:58b20b438383 215 } else if (!tconn && (t - lastLogin > 5000UL)) {
vshymanskyy 0:58b20b438383 216 conn.disconnect();
vshymanskyy 0:58b20b438383 217 if (!conn.connect()) {
vshymanskyy 0:58b20b438383 218 lastLogin = t;
vshymanskyy 0:58b20b438383 219 return false;
vshymanskyy 0:58b20b438383 220 }
vshymanskyy 0:58b20b438383 221
vshymanskyy 0:58b20b438383 222 #ifdef BLYNK_MSG_LIMIT
vshymanskyy 0:58b20b438383 223 deltaCmd = 1000;
vshymanskyy 0:58b20b438383 224 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 225 msgIdOut = 1;
vshymanskyy 0:58b20b438383 226 sendCmd(BLYNK_CMD_LOGIN, 1, authkey, strlen(authkey));
vshymanskyy 0:58b20b438383 227 lastLogin = lastActivityOut;
vshymanskyy 0:58b20b438383 228 return true;
vshymanskyy 0:58b20b438383 229 }
vshymanskyy 0:58b20b438383 230 #endif
vshymanskyy 0:58b20b438383 231 }
vshymanskyy 0:58b20b438383 232 return true;
vshymanskyy 0:58b20b438383 233 }
vshymanskyy 0:58b20b438383 234
vshymanskyy 0:58b20b438383 235 template <class Transp>
vshymanskyy 0:58b20b438383 236 BLYNK_FORCE_INLINE
vshymanskyy 0:58b20b438383 237 bool BlynkProtocol<Transp>::processInput(void)
vshymanskyy 0:58b20b438383 238 {
vshymanskyy 0:58b20b438383 239 BlynkHeader hdr;
vshymanskyy 0:58b20b438383 240 const int ret = readHeader(hdr);
vshymanskyy 0:58b20b438383 241
vshymanskyy 0:58b20b438383 242 if (ret == 0) {
vshymanskyy 0:58b20b438383 243 return true; // Considered OK (no data on input)
vshymanskyy 0:58b20b438383 244 }
vshymanskyy 0:58b20b438383 245
vshymanskyy 0:58b20b438383 246 if (ret < 0 || hdr.msg_id == 0) {
vshymanskyy 0:58b20b438383 247 #ifdef BLYNK_DEBUG
Volodymyr Shymanskyy 3:31e4b850b126 248 BLYNK_LOG2(BLYNK_F("Bad hdr len: "), ret);
vshymanskyy 0:58b20b438383 249 #endif
vshymanskyy 0:58b20b438383 250 return false;
vshymanskyy 0:58b20b438383 251 }
vshymanskyy 0:58b20b438383 252
vshymanskyy 0:58b20b438383 253 if (hdr.type == BLYNK_CMD_RESPONSE) {
vshymanskyy 0:58b20b438383 254 lastActivityIn = this->getMillis();
vshymanskyy 0:58b20b438383 255
vshymanskyy 0:58b20b438383 256 #ifndef BLYNK_USE_DIRECT_CONNECT
vshymanskyy 0:58b20b438383 257 if (state == CONNECTING && (1 == hdr.msg_id)) {
vshymanskyy 0:58b20b438383 258 switch (hdr.length) {
vshymanskyy 0:58b20b438383 259 case BLYNK_SUCCESS:
Volodymyr Shymanskyy 9:7369ec77a3ea 260 case BLYNK_ALREADY_REGISTERED:
vshymanskyy 0:58b20b438383 261 BLYNK_LOG3(BLYNK_F("Ready (ping: "), lastActivityIn-lastHeartbeat, BLYNK_F("ms)."));
vshymanskyy 0:58b20b438383 262 lastHeartbeat = lastActivityIn;
vshymanskyy 0:58b20b438383 263 state = CONNECTED;
vshymanskyy 0:58b20b438383 264 this->sendInfo();
Volodymyr Shymanskyy 9:7369ec77a3ea 265 BLYNK_RUN_YIELD();
vshymanskyy 0:58b20b438383 266 BlynkOnConnected();
vshymanskyy 0:58b20b438383 267 return true;
vshymanskyy 0:58b20b438383 268 case BLYNK_INVALID_TOKEN:
vshymanskyy 0:58b20b438383 269 BLYNK_LOG1(BLYNK_F("Invalid auth token"));
vshymanskyy 0:58b20b438383 270 break;
vshymanskyy 0:58b20b438383 271 default:
vshymanskyy 0:58b20b438383 272 BLYNK_LOG2(BLYNK_F("Connect failed. code: "), hdr.length);
vshymanskyy 0:58b20b438383 273 }
vshymanskyy 0:58b20b438383 274 return false;
vshymanskyy 0:58b20b438383 275 }
vshymanskyy 0:58b20b438383 276 if (BLYNK_NOT_AUTHENTICATED == hdr.length) {
vshymanskyy 0:58b20b438383 277 return false;
vshymanskyy 0:58b20b438383 278 }
vshymanskyy 0:58b20b438383 279 #endif
vshymanskyy 0:58b20b438383 280 // TODO: return code may indicate App presence
vshymanskyy 0:58b20b438383 281 return true;
vshymanskyy 0:58b20b438383 282 }
vshymanskyy 0:58b20b438383 283
vshymanskyy 0:58b20b438383 284 if (hdr.length > BLYNK_MAX_READBYTES) {
vshymanskyy 0:58b20b438383 285 #ifdef BLYNK_DEBUG
vshymanskyy 0:58b20b438383 286 BLYNK_LOG2(BLYNK_F("Packet too big: "), hdr.length);
vshymanskyy 0:58b20b438383 287 #endif
Volodymyr Shymanskyy 3:31e4b850b126 288 // TODO: Flush
Volodymyr Shymanskyy 3:31e4b850b126 289 conn.connect();
Volodymyr Shymanskyy 3:31e4b850b126 290 return true;
vshymanskyy 0:58b20b438383 291 }
vshymanskyy 0:58b20b438383 292
vshymanskyy 0:58b20b438383 293 uint8_t inputBuffer[hdr.length+1]; // Add 1 to zero-terminate
vshymanskyy 0:58b20b438383 294 if (hdr.length != conn.read(inputBuffer, hdr.length)) {
vshymanskyy 0:58b20b438383 295 #ifdef DEBUG
vshymanskyy 0:58b20b438383 296 BLYNK_LOG1(BLYNK_F("Can't read body"));
vshymanskyy 0:58b20b438383 297 #endif
vshymanskyy 0:58b20b438383 298 return false;
vshymanskyy 0:58b20b438383 299 }
vshymanskyy 0:58b20b438383 300 inputBuffer[hdr.length] = '\0';
vshymanskyy 0:58b20b438383 301
vshymanskyy 0:58b20b438383 302 BLYNK_DBG_DUMP(">", inputBuffer, hdr.length);
vshymanskyy 0:58b20b438383 303
vshymanskyy 0:58b20b438383 304 lastActivityIn = this->getMillis();
vshymanskyy 0:58b20b438383 305
vshymanskyy 0:58b20b438383 306 switch (hdr.type)
vshymanskyy 0:58b20b438383 307 {
Volodymyr Shymanskyy 3:31e4b850b126 308 case BLYNK_CMD_LOGIN: {
vshymanskyy 0:58b20b438383 309 #ifdef BLYNK_USE_DIRECT_CONNECT
Volodymyr Shymanskyy 13:ed6276c0afb7 310 if (strncmp(authkey, (char*)inputBuffer, 32)) {
Volodymyr Shymanskyy 13:ed6276c0afb7 311 BLYNK_LOG1(BLYNK_F("Invalid token"));
Volodymyr Shymanskyy 13:ed6276c0afb7 312 sendCmd(BLYNK_CMD_RESPONSE, hdr.msg_id, NULL, BLYNK_INVALID_TOKEN);
Volodymyr Shymanskyy 13:ed6276c0afb7 313 break;
Volodymyr Shymanskyy 13:ed6276c0afb7 314 }
Volodymyr Shymanskyy 13:ed6276c0afb7 315 #endif
Volodymyr Shymanskyy 13:ed6276c0afb7 316 if (state == CONNECTING) {
Volodymyr Shymanskyy 3:31e4b850b126 317 BLYNK_LOG1(BLYNK_F("Ready"));
vshymanskyy 0:58b20b438383 318 state = CONNECTED;
vshymanskyy 0:58b20b438383 319 this->sendInfo();
Volodymyr Shymanskyy 3:31e4b850b126 320 BlynkOnConnected();
vshymanskyy 0:58b20b438383 321 }
Volodymyr Shymanskyy 9:7369ec77a3ea 322 sendCmd(BLYNK_CMD_RESPONSE, hdr.msg_id, NULL, BLYNK_SUCCESS);
vshymanskyy 0:58b20b438383 323 } break;
vshymanskyy 0:58b20b438383 324 case BLYNK_CMD_PING: {
vshymanskyy 0:58b20b438383 325 sendCmd(BLYNK_CMD_RESPONSE, hdr.msg_id, NULL, BLYNK_SUCCESS);
vshymanskyy 0:58b20b438383 326 } break;
Volodymyr Shymanskyy 9:7369ec77a3ea 327 case BLYNK_CMD_REDIRECT: {
Volodymyr Shymanskyy 9:7369ec77a3ea 328 if (!redir_serv) {
Volodymyr Shymanskyy 9:7369ec77a3ea 329 redir_serv = (char*)malloc(32);
Volodymyr Shymanskyy 9:7369ec77a3ea 330 }
Volodymyr Shymanskyy 9:7369ec77a3ea 331 BlynkParam param(inputBuffer, hdr.length);
Volodymyr Shymanskyy 9:7369ec77a3ea 332 uint16_t redir_port = BLYNK_DEFAULT_PORT; // TODO: Fixit
Volodymyr Shymanskyy 9:7369ec77a3ea 333
Volodymyr Shymanskyy 9:7369ec77a3ea 334 BlynkParam::iterator it = param.begin();
Volodymyr Shymanskyy 9:7369ec77a3ea 335 if (it >= param.end())
Volodymyr Shymanskyy 9:7369ec77a3ea 336 return false;
Volodymyr Shymanskyy 9:7369ec77a3ea 337 strncpy(redir_serv, it.asStr(), 32);
Volodymyr Shymanskyy 9:7369ec77a3ea 338 if (++it < param.end())
Volodymyr Shymanskyy 9:7369ec77a3ea 339 redir_port = it.asLong();
Volodymyr Shymanskyy 9:7369ec77a3ea 340 BLYNK_LOG4(BLYNK_F("Redirecting to "), redir_serv, ':', redir_port);
Volodymyr Shymanskyy 9:7369ec77a3ea 341 conn.disconnect();
Volodymyr Shymanskyy 9:7369ec77a3ea 342 conn.begin(redir_serv, redir_port);
Volodymyr Shymanskyy 9:7369ec77a3ea 343 lastLogin = lastActivityIn - 5000L; // Reconnect immediately
Volodymyr Shymanskyy 9:7369ec77a3ea 344 state = CONNECTING;
Volodymyr Shymanskyy 9:7369ec77a3ea 345 } break;
vshymanskyy 0:58b20b438383 346 case BLYNK_CMD_HARDWARE:
vshymanskyy 0:58b20b438383 347 case BLYNK_CMD_BRIDGE: {
Volodymyr Shymanskyy 14:76d8fd871a4d 348 msgIdOutOverride = hdr.msg_id;
vshymanskyy 0:58b20b438383 349 this->processCmd(inputBuffer, hdr.length);
Volodymyr Shymanskyy 14:76d8fd871a4d 350 msgIdOutOverride = 0;
vshymanskyy 0:58b20b438383 351 } break;
Volodymyr Shymanskyy 10:c241e4227173 352 case BLYNK_CMD_INTERNAL: {
Volodymyr Shymanskyy 10:c241e4227173 353 BlynkReq req = { 0 };
Volodymyr Shymanskyy 10:c241e4227173 354 BlynkParam param(inputBuffer, hdr.length);
Volodymyr Shymanskyy 10:c241e4227173 355 BlynkParam::iterator it = param.begin();
Volodymyr Shymanskyy 10:c241e4227173 356 if (it >= param.end())
Volodymyr Shymanskyy 10:c241e4227173 357 return true;
Volodymyr Shymanskyy 10:c241e4227173 358
Volodymyr Shymanskyy 10:c241e4227173 359 uint32_t cmd32;
Volodymyr Shymanskyy 10:c241e4227173 360 memcpy(&cmd32, it.asStr(), sizeof(cmd32));
Volodymyr Shymanskyy 10:c241e4227173 361
Volodymyr Shymanskyy 14:76d8fd871a4d 362 ++it;
Volodymyr Shymanskyy 14:76d8fd871a4d 363 char* start = (char*)(it).asStr();
Volodymyr Shymanskyy 14:76d8fd871a4d 364 unsigned length = hdr.length - (start - (char*)inputBuffer);
Volodymyr Shymanskyy 14:76d8fd871a4d 365 BlynkParam param2(start, length);
Volodymyr Shymanskyy 10:c241e4227173 366
Volodymyr Shymanskyy 10:c241e4227173 367 switch (cmd32) {
Volodymyr Shymanskyy 10:c241e4227173 368 case BLYNK_INT_RTC: BlynkWidgetWriteInternalPinRTC(req, param2); break;
Volodymyr Shymanskyy 10:c241e4227173 369 case BLYNK_INT_OTA: BlynkWidgetWriteInternalPinOTA(req, param2); break;
Volodymyr Shymanskyy 10:c241e4227173 370 case BLYNK_INT_ACON: BlynkWidgetWriteInternalPinACON(req, param2); break;
Volodymyr Shymanskyy 10:c241e4227173 371 case BLYNK_INT_ADIS: BlynkWidgetWriteInternalPinADIS(req, param2); break;
Volodymyr Shymanskyy 14:76d8fd871a4d 372 #ifdef DEBUG
Volodymyr Shymanskyy 14:76d8fd871a4d 373 default: BLYNK_LOG2(BLYNK_F("Invalid internal cmd:"), param.asStr());
Volodymyr Shymanskyy 14:76d8fd871a4d 374 #endif
Volodymyr Shymanskyy 10:c241e4227173 375 }
Volodymyr Shymanskyy 9:7369ec77a3ea 376 } break;
Volodymyr Shymanskyy 9:7369ec77a3ea 377 case BLYNK_CMD_DEBUG_PRINT: {
Volodymyr Shymanskyy 9:7369ec77a3ea 378 if (hdr.length) {
Volodymyr Shymanskyy 9:7369ec77a3ea 379 BLYNK_LOG2(BLYNK_F("Server: "), (char*)inputBuffer);
Volodymyr Shymanskyy 9:7369ec77a3ea 380 }
Volodymyr Shymanskyy 9:7369ec77a3ea 381 } break;
vshymanskyy 0:58b20b438383 382 default: {
vshymanskyy 0:58b20b438383 383 #ifdef BLYNK_DEBUG
vshymanskyy 0:58b20b438383 384 BLYNK_LOG2(BLYNK_F("Invalid header type: "), hdr.type);
vshymanskyy 0:58b20b438383 385 #endif
Volodymyr Shymanskyy 3:31e4b850b126 386 // TODO: Flush
Volodymyr Shymanskyy 3:31e4b850b126 387 conn.connect();
vshymanskyy 0:58b20b438383 388 } break;
vshymanskyy 0:58b20b438383 389 }
vshymanskyy 0:58b20b438383 390
vshymanskyy 0:58b20b438383 391 return true;
vshymanskyy 0:58b20b438383 392 }
vshymanskyy 0:58b20b438383 393
vshymanskyy 0:58b20b438383 394 template <class Transp>
vshymanskyy 0:58b20b438383 395 int BlynkProtocol<Transp>::readHeader(BlynkHeader& hdr)
vshymanskyy 0:58b20b438383 396 {
vshymanskyy 0:58b20b438383 397 size_t rlen = conn.read(&hdr, sizeof(hdr));
vshymanskyy 0:58b20b438383 398 if (rlen == 0) {
vshymanskyy 0:58b20b438383 399 return 0;
vshymanskyy 0:58b20b438383 400 }
vshymanskyy 0:58b20b438383 401
vshymanskyy 0:58b20b438383 402 if (sizeof(hdr) != rlen) {
vshymanskyy 0:58b20b438383 403 return -1;
vshymanskyy 0:58b20b438383 404 }
Volodymyr Shymanskyy 3:31e4b850b126 405
Volodymyr Shymanskyy 3:31e4b850b126 406 BLYNK_DBG_DUMP(">", &hdr, sizeof(BlynkHeader));
Volodymyr Shymanskyy 3:31e4b850b126 407
vshymanskyy 0:58b20b438383 408 hdr.msg_id = ntohs(hdr.msg_id);
vshymanskyy 0:58b20b438383 409 hdr.length = ntohs(hdr.length);
vshymanskyy 0:58b20b438383 410
vshymanskyy 0:58b20b438383 411 return rlen;
vshymanskyy 0:58b20b438383 412 }
vshymanskyy 0:58b20b438383 413
vshymanskyy 0:58b20b438383 414 #ifndef BLYNK_SEND_THROTTLE
vshymanskyy 0:58b20b438383 415 #define BLYNK_SEND_THROTTLE 0
vshymanskyy 0:58b20b438383 416 #endif
vshymanskyy 0:58b20b438383 417
vshymanskyy 0:58b20b438383 418 #ifndef BLYNK_SEND_CHUNK
vshymanskyy 0:58b20b438383 419 #define BLYNK_SEND_CHUNK 1024 // Just a big number
vshymanskyy 0:58b20b438383 420 #endif
vshymanskyy 0:58b20b438383 421
vshymanskyy 0:58b20b438383 422 template <class Transp>
vshymanskyy 0:58b20b438383 423 void BlynkProtocol<Transp>::sendCmd(uint8_t cmd, uint16_t id, const void* data, size_t length, const void* data2, size_t length2)
vshymanskyy 0:58b20b438383 424 {
vshymanskyy 0:58b20b438383 425 if (0 == id) {
vshymanskyy 0:58b20b438383 426 id = getNextMsgId();
vshymanskyy 0:58b20b438383 427 }
vshymanskyy 0:58b20b438383 428
vshymanskyy 0:58b20b438383 429 if (!conn.connected() || (cmd != BLYNK_CMD_RESPONSE && cmd != BLYNK_CMD_PING && cmd != BLYNK_CMD_LOGIN && state != CONNECTED) ) {
vshymanskyy 0:58b20b438383 430 #ifdef BLYNK_DEBUG
vshymanskyy 0:58b20b438383 431 BLYNK_LOG2(BLYNK_F("Cmd skipped:"), cmd);
vshymanskyy 0:58b20b438383 432 #endif
vshymanskyy 0:58b20b438383 433 return;
vshymanskyy 0:58b20b438383 434 }
vshymanskyy 0:58b20b438383 435
Volodymyr Shymanskyy 7:8879692d4e6c 436 const size_t full_length = (sizeof(BlynkHeader)) +
Volodymyr Shymanskyy 7:8879692d4e6c 437 (data ? length : 0) +
Volodymyr Shymanskyy 7:8879692d4e6c 438 (data2 ? length2 : 0);
vshymanskyy 0:58b20b438383 439
vshymanskyy 0:58b20b438383 440 #if defined(BLYNK_SEND_ATOMIC) || defined(ESP8266) || defined(SPARK) || defined(PARTICLE) || defined(ENERGIA)
vshymanskyy 0:58b20b438383 441 // Those have more RAM and like single write at a time...
vshymanskyy 0:58b20b438383 442
vshymanskyy 0:58b20b438383 443 uint8_t buff[full_length];
vshymanskyy 0:58b20b438383 444
vshymanskyy 0:58b20b438383 445 BlynkHeader* hdr = (BlynkHeader*)buff;
vshymanskyy 0:58b20b438383 446 hdr->type = cmd;
vshymanskyy 0:58b20b438383 447 hdr->msg_id = htons(id);
vshymanskyy 0:58b20b438383 448 hdr->length = htons(length+length2);
vshymanskyy 0:58b20b438383 449
vshymanskyy 0:58b20b438383 450 size_t pos = sizeof(BlynkHeader);
vshymanskyy 0:58b20b438383 451 if (data && length) {
vshymanskyy 0:58b20b438383 452 memcpy(buff + pos, data, length);
vshymanskyy 0:58b20b438383 453 pos += length;
vshymanskyy 0:58b20b438383 454 }
vshymanskyy 0:58b20b438383 455 if (data2 && length2) {
vshymanskyy 0:58b20b438383 456 memcpy(buff + pos, data2, length2);
vshymanskyy 0:58b20b438383 457 }
vshymanskyy 0:58b20b438383 458
vshymanskyy 0:58b20b438383 459 size_t wlen = 0;
vshymanskyy 0:58b20b438383 460 while (wlen < full_length) {
vshymanskyy 0:58b20b438383 461 const size_t chunk = BlynkMin(size_t(BLYNK_SEND_CHUNK), full_length - wlen);
Volodymyr Shymanskyy 9:7369ec77a3ea 462 BLYNK_DBG_DUMP("<", buff + wlen, chunk);
vshymanskyy 0:58b20b438383 463 const size_t w = conn.write(buff + wlen, chunk);
Volodymyr Shymanskyy 7:8879692d4e6c 464 ::delay(BLYNK_SEND_THROTTLE);
Volodymyr Shymanskyy 9:7369ec77a3ea 465 if (w == 0) {
vshymanskyy 0:58b20b438383 466 #ifdef BLYNK_DEBUG
vshymanskyy 0:58b20b438383 467 BLYNK_LOG1(BLYNK_F("Cmd error"));
vshymanskyy 0:58b20b438383 468 #endif
vshymanskyy 0:58b20b438383 469 conn.disconnect();
vshymanskyy 0:58b20b438383 470 state = CONNECTING;
vshymanskyy 0:58b20b438383 471 //BlynkOnDisconnected();
vshymanskyy 0:58b20b438383 472 return;
Volodymyr Shymanskyy 9:7369ec77a3ea 473 }
vshymanskyy 0:58b20b438383 474 wlen += w;
vshymanskyy 0:58b20b438383 475 }
vshymanskyy 0:58b20b438383 476
vshymanskyy 0:58b20b438383 477 #else
vshymanskyy 0:58b20b438383 478
vshymanskyy 0:58b20b438383 479 BlynkHeader hdr;
vshymanskyy 0:58b20b438383 480 hdr.type = cmd;
vshymanskyy 0:58b20b438383 481 hdr.msg_id = htons(id);
vshymanskyy 0:58b20b438383 482 hdr.length = htons(length+length2);
vshymanskyy 0:58b20b438383 483
Volodymyr Shymanskyy 9:7369ec77a3ea 484 BLYNK_DBG_DUMP("<", &hdr, sizeof(hdr));
vshymanskyy 0:58b20b438383 485 size_t wlen = conn.write(&hdr, sizeof(hdr));
Volodymyr Shymanskyy 7:8879692d4e6c 486 ::delay(BLYNK_SEND_THROTTLE);
vshymanskyy 0:58b20b438383 487
vshymanskyy 0:58b20b438383 488 if (cmd != BLYNK_CMD_RESPONSE) {
vshymanskyy 0:58b20b438383 489 if (length) {
vshymanskyy 0:58b20b438383 490 BLYNK_DBG_DUMP("<", data, length);
vshymanskyy 0:58b20b438383 491 wlen += conn.write(data, length);
Volodymyr Shymanskyy 7:8879692d4e6c 492 ::delay(BLYNK_SEND_THROTTLE);
vshymanskyy 0:58b20b438383 493 }
vshymanskyy 0:58b20b438383 494 if (length2) {
vshymanskyy 0:58b20b438383 495 BLYNK_DBG_DUMP("<", data2, length2);
vshymanskyy 0:58b20b438383 496 wlen += conn.write(data2, length2);
Volodymyr Shymanskyy 7:8879692d4e6c 497 ::delay(BLYNK_SEND_THROTTLE);
vshymanskyy 0:58b20b438383 498 }
vshymanskyy 0:58b20b438383 499 }
vshymanskyy 0:58b20b438383 500
vshymanskyy 0:58b20b438383 501 #endif
vshymanskyy 0:58b20b438383 502
vshymanskyy 0:58b20b438383 503 if (wlen != full_length) {
vshymanskyy 0:58b20b438383 504 #ifdef BLYNK_DEBUG
vshymanskyy 0:58b20b438383 505 BLYNK_LOG4(BLYNK_F("Sent "), wlen, '/', full_length);
vshymanskyy 0:58b20b438383 506 #endif
Volodymyr Shymanskyy 14:76d8fd871a4d 507 internalReconnect();
vshymanskyy 0:58b20b438383 508 return;
vshymanskyy 0:58b20b438383 509 }
vshymanskyy 0:58b20b438383 510
Volodymyr Shymanskyy 9:7369ec77a3ea 511 const millis_time_t ts = this->getMillis();
vshymanskyy 0:58b20b438383 512 #if defined BLYNK_MSG_LIMIT && BLYNK_MSG_LIMIT > 0
vshymanskyy 0:58b20b438383 513 BlynkAverageSample<32>(deltaCmd, ts - lastActivityOut);
vshymanskyy 0:58b20b438383 514 //BLYNK_LOG2(BLYNK_F("Delta: "), deltaCmd);
vshymanskyy 0:58b20b438383 515 if (deltaCmd < (1000/BLYNK_MSG_LIMIT)) {
vshymanskyy 0:58b20b438383 516 BLYNK_LOG_TROUBLE(BLYNK_F("flood-error"));
Volodymyr Shymanskyy 14:76d8fd871a4d 517 internalReconnect();
vshymanskyy 0:58b20b438383 518 }
vshymanskyy 0:58b20b438383 519 #endif
Volodymyr Shymanskyy 9:7369ec77a3ea 520 lastActivityOut = ts;
vshymanskyy 0:58b20b438383 521
vshymanskyy 0:58b20b438383 522 }
vshymanskyy 0:58b20b438383 523
vshymanskyy 0:58b20b438383 524 template <class Transp>
vshymanskyy 0:58b20b438383 525 uint16_t BlynkProtocol<Transp>::getNextMsgId()
vshymanskyy 0:58b20b438383 526 {
Volodymyr Shymanskyy 14:76d8fd871a4d 527 if (msgIdOutOverride != 0)
Volodymyr Shymanskyy 14:76d8fd871a4d 528 return msgIdOutOverride;
Volodymyr Shymanskyy 14:76d8fd871a4d 529 if (++msgIdOut == 0)
Volodymyr Shymanskyy 14:76d8fd871a4d 530 msgIdOut = 1;
Volodymyr Shymanskyy 14:76d8fd871a4d 531 return msgIdOut;
vshymanskyy 0:58b20b438383 532 }
vshymanskyy 0:58b20b438383 533
vshymanskyy 0:58b20b438383 534 #endif