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90 lines
2.3 KiB
90 lines
2.3 KiB
#ifndef __MQTT_H__
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#define __MQTT_H__
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#include <ESP8266WiFi.h>
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#include <PubSubClient.h>
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#include "defines.h"
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class mqtt {
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public:
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mqtt() {
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mClient = new PubSubClient(mEspClient);
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mAddressSet = false;
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memset(mUser, 0, MQTT_USER_LEN);
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memset(mPwd, 0, MQTT_PWD_LEN);
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memset(mTopic, 0, MQTT_TOPIC_LEN);
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}
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~mqtt() {
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delete mClient;
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}
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void setup(const char *broker, const char *topic, const char *user, const char *pwd) {
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mAddressSet = true;
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mClient->setServer(broker, 1883);
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snprintf(mUser, MQTT_USER_LEN, "%s", user);
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snprintf(mPwd, MQTT_PWD_LEN, "%s", pwd);
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snprintf(mTopic, MQTT_TOPIC_LEN, "%s", topic);
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}
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void sendMsg(const char *topic, const char *msg) {
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if(mAddressSet) {
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uint8_t len = MQTT_TOPIC_LEN + strlen(msg);
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char top[len];
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snprintf(top, len, "%s/%s", mTopic, topic);
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if(!mClient->connected())
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reconnect();
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mClient->publish(top, msg);
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}
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}
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bool isConnected(bool doRecon = false) {
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if(doRecon)
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reconnect();
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return mClient->connected();
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}
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char *getUser(void) {
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return mUser;
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}
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char *getPwd(void) {
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return mUser;
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}
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char *getTopic(void) {
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return mTopic;
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}
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void loop() {
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//if(!mClient->connected())
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// reconnect();
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mClient->loop();
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}
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private:
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void reconnect(void) {
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if(!mClient->connected()) {
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String mqttId = "ESP-" + String(random(0xffff), HEX);
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if((strlen(mUser) > 0) && (strlen(mPwd) > 0)) {
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mClient->connect(mqttId.c_str(), mUser, mPwd);
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}
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else {
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mClient->connect(mqttId.c_str());
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}
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}
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}
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WiFiClient mEspClient;
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PubSubClient *mClient;
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bool mAddressSet;
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char mUser[MQTT_USER_LEN];
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char mPwd[MQTT_PWD_LEN];
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char mTopic[MQTT_TOPIC_LEN];
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};
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#endif /*__MQTT_H_*/
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